var bundle;
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function _arrayLikeToArray(arr, len) {
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/***/ "./node_modules/@babel/runtime/helpers/arrayWithHoles.js":
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function _arrayWithHoles(arr) {
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}

module.exports = _arrayWithHoles, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/arrayWithoutHoles.js":
/*!******************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/arrayWithoutHoles.js ***!
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/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var arrayLikeToArray = __webpack_require__(/*! ./arrayLikeToArray.js */ "./node_modules/@babel/runtime/helpers/arrayLikeToArray.js");

function _arrayWithoutHoles(arr) {
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/***/ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js":
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/***/ ((module) => {

function _assertThisInitialized(self) {
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/***/ "./node_modules/@babel/runtime/helpers/classApplyDescriptorGet.js":
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function _classApplyDescriptorGet(receiver, descriptor) {
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/***/ "./node_modules/@babel/runtime/helpers/classApplyDescriptorSet.js":
/*!************************************************************************!*\
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function _classApplyDescriptorSet(receiver, descriptor, value) {
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/***/ "./node_modules/@babel/runtime/helpers/classCallCheck.js":
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/***/ ((module) => {

function _classCallCheck(instance, Constructor) {
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}

module.exports = _classCallCheck, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/classExtractFieldDescriptor.js":
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/***/ ((module) => {

function _classExtractFieldDescriptor(receiver, privateMap, action) {
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module.exports = _classExtractFieldDescriptor, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js":
/*!*********************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js ***!
  \*********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var classApplyDescriptorGet = __webpack_require__(/*! ./classApplyDescriptorGet.js */ "./node_modules/@babel/runtime/helpers/classApplyDescriptorGet.js");

var classExtractFieldDescriptor = __webpack_require__(/*! ./classExtractFieldDescriptor.js */ "./node_modules/@babel/runtime/helpers/classExtractFieldDescriptor.js");

function _classPrivateFieldGet(receiver, privateMap) {
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/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js":
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/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var classApplyDescriptorSet = __webpack_require__(/*! ./classApplyDescriptorSet.js */ "./node_modules/@babel/runtime/helpers/classApplyDescriptorSet.js");

var classExtractFieldDescriptor = __webpack_require__(/*! ./classExtractFieldDescriptor.js */ "./node_modules/@babel/runtime/helpers/classExtractFieldDescriptor.js");

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/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/createClass.js":
/*!************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/createClass.js ***!
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/***/ ((module) => {

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
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}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  Object.defineProperty(Constructor, "prototype", {
    writable: false
  });
  return Constructor;
}

module.exports = _createClass, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/get.js":
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/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var superPropBase = __webpack_require__(/*! ./superPropBase.js */ "./node_modules/@babel/runtime/helpers/superPropBase.js");

function _get() {
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    module.exports = _get = Reflect.get, module.exports.__esModule = true, module.exports["default"] = module.exports;
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    module.exports = _get = function _get(target, property, receiver) {
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      if (!base) return;
      var desc = Object.getOwnPropertyDescriptor(base, property);

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}

module.exports = _get, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js":
/*!***************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/getPrototypeOf.js ***!
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/***/ ((module) => {

function _getPrototypeOf(o) {
  module.exports = _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  }, module.exports.__esModule = true, module.exports["default"] = module.exports;
  return _getPrototypeOf(o);
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/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/inherits.js":
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var setPrototypeOf = __webpack_require__(/*! ./setPrototypeOf.js */ "./node_modules/@babel/runtime/helpers/setPrototypeOf.js");

function _inherits(subClass, superClass) {
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    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  Object.defineProperty(subClass, "prototype", {
    writable: false
  });
  if (superClass) setPrototypeOf(subClass, superClass);
}

module.exports = _inherits, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js":
/*!**********************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/interopRequireDefault.js ***!
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/***/ ((module) => {

function _interopRequireDefault(obj) {
  return obj && obj.__esModule ? obj : {
    "default": obj
  };
}

module.exports = _interopRequireDefault, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/iterableToArray.js":
/*!****************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/iterableToArray.js ***!
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/***/ ((module) => {

function _iterableToArray(iter) {
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}

module.exports = _iterableToArray, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/iterableToArrayLimit.js":
/*!*********************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/iterableToArrayLimit.js ***!
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/***/ ((module) => {

function _iterableToArrayLimit(arr, i) {
  var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"];

  if (_i == null) return;
  var _arr = [];
  var _n = true;
  var _d = false;

  var _s, _e;

  try {
    for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) {
      _arr.push(_s.value);

      if (i && _arr.length === i) break;
    }
  } catch (err) {
    _d = true;
    _e = err;
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    try {
      if (!_n && _i["return"] != null) _i["return"]();
    } finally {
      if (_d) throw _e;
    }
  }

  return _arr;
}

module.exports = _iterableToArrayLimit, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/nonIterableRest.js":
/*!****************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/nonIterableRest.js ***!
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/***/ ((module) => {

function _nonIterableRest() {
  throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

module.exports = _nonIterableRest, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/nonIterableSpread.js":
/*!******************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/nonIterableSpread.js ***!
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/***/ ((module) => {

function _nonIterableSpread() {
  throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

module.exports = _nonIterableSpread, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js":
/*!**************************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js ***!
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/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var _typeof = (__webpack_require__(/*! ./typeof.js */ "./node_modules/@babel/runtime/helpers/typeof.js")["default"]);

var assertThisInitialized = __webpack_require__(/*! ./assertThisInitialized.js */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js");

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
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    throw new TypeError("Derived constructors may only return object or undefined");
  }

  return assertThisInitialized(self);
}

module.exports = _possibleConstructorReturn, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/setPrototypeOf.js":
/*!***************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/setPrototypeOf.js ***!
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/***/ ((module) => {

function _setPrototypeOf(o, p) {
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    return o;
  }, module.exports.__esModule = true, module.exports["default"] = module.exports;
  return _setPrototypeOf(o, p);
}

module.exports = _setPrototypeOf, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/slicedToArray.js":
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/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var arrayWithHoles = __webpack_require__(/*! ./arrayWithHoles.js */ "./node_modules/@babel/runtime/helpers/arrayWithHoles.js");

var iterableToArrayLimit = __webpack_require__(/*! ./iterableToArrayLimit.js */ "./node_modules/@babel/runtime/helpers/iterableToArrayLimit.js");

var unsupportedIterableToArray = __webpack_require__(/*! ./unsupportedIterableToArray.js */ "./node_modules/@babel/runtime/helpers/unsupportedIterableToArray.js");

var nonIterableRest = __webpack_require__(/*! ./nonIterableRest.js */ "./node_modules/@babel/runtime/helpers/nonIterableRest.js");

function _slicedToArray(arr, i) {
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}

module.exports = _slicedToArray, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/superPropBase.js":
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/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var getPrototypeOf = __webpack_require__(/*! ./getPrototypeOf.js */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js");

function _superPropBase(object, property) {
  while (!Object.prototype.hasOwnProperty.call(object, property)) {
    object = getPrototypeOf(object);
    if (object === null) break;
  }

  return object;
}

module.exports = _superPropBase, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/toConsumableArray.js":
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/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var arrayWithoutHoles = __webpack_require__(/*! ./arrayWithoutHoles.js */ "./node_modules/@babel/runtime/helpers/arrayWithoutHoles.js");

var iterableToArray = __webpack_require__(/*! ./iterableToArray.js */ "./node_modules/@babel/runtime/helpers/iterableToArray.js");

var unsupportedIterableToArray = __webpack_require__(/*! ./unsupportedIterableToArray.js */ "./node_modules/@babel/runtime/helpers/unsupportedIterableToArray.js");

var nonIterableSpread = __webpack_require__(/*! ./nonIterableSpread.js */ "./node_modules/@babel/runtime/helpers/nonIterableSpread.js");

function _toConsumableArray(arr) {
  return arrayWithoutHoles(arr) || iterableToArray(arr) || unsupportedIterableToArray(arr) || nonIterableSpread();
}

module.exports = _toConsumableArray, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/typeof.js":
/*!*******************************************************!*\
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/***/ ((module) => {

function _typeof(obj) {
  "@babel/helpers - typeof";

  return (module.exports = _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
    return typeof obj;
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/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/unsupportedIterableToArray.js":
/*!***************************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/unsupportedIterableToArray.js ***!
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/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var arrayLikeToArray = __webpack_require__(/*! ./arrayLikeToArray.js */ "./node_modules/@babel/runtime/helpers/arrayLikeToArray.js");

function _unsupportedIterableToArray(o, minLen) {
  if (!o) return;
  if (typeof o === "string") return arrayLikeToArray(o, minLen);
  var n = Object.prototype.toString.call(o).slice(8, -1);
  if (n === "Object" && o.constructor) n = o.constructor.name;
  if (n === "Map" || n === "Set") return Array.from(o);
  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return arrayLikeToArray(o, minLen);
}

module.exports = _unsupportedIterableToArray, module.exports.__esModule = true, module.exports["default"] = module.exports;

/***/ }),

/***/ "./node_modules/@loaders.gl/las/dist/esm/index.js":
/*!********************************************************!*\
  !*** ./node_modules/@loaders.gl/las/dist/esm/index.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "LASWorkerLoader": () => (/* reexport safe */ _las_loader__WEBPACK_IMPORTED_MODULE_0__.LASLoader),
/* harmony export */   "LASLoader": () => (/* binding */ LASLoader),
/* harmony export */   "_typecheckLoader": () => (/* binding */ _typecheckLoader)
/* harmony export */ });
/* harmony import */ var _las_loader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./las-loader */ "./node_modules/@loaders.gl/las/dist/esm/las-loader.js");
/* harmony import */ var _lib_parse_las__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./lib/parse-las */ "./node_modules/@loaders.gl/las/dist/esm/lib/parse-las.js");



const LASLoader = { ..._las_loader__WEBPACK_IMPORTED_MODULE_0__.LASLoader,
  parse: async (arrayBuffer, options) => (0,_lib_parse_las__WEBPACK_IMPORTED_MODULE_1__["default"])(arrayBuffer, options),
  parseSync: (arrayBuffer, options) => (0,_lib_parse_las__WEBPACK_IMPORTED_MODULE_1__["default"])(arrayBuffer, options)
};
const _typecheckLoader = LASLoader;
//# sourceMappingURL=index.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/las/dist/esm/las-loader.js":
/*!*************************************************************!*\
  !*** ./node_modules/@loaders.gl/las/dist/esm/las-loader.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "LASLoader": () => (/* binding */ LASLoader),
/* harmony export */   "_typecheckLoader": () => (/* binding */ _typecheckLoader)
/* harmony export */ });
const VERSION =  true ? "3.1.7" : 0;
const DEFAULT_LAS_OPTIONS = {
  las: {
    shape: 'mesh',
    fp64: false,
    skip: 1,
    colorDepth: 8
  }
};
const LASLoader = {
  name: 'LAS',
  id: 'las',
  module: 'las',
  version: VERSION,
  worker: true,
  extensions: ['las', 'laz'],
  mimeTypes: ['application/octet-stream'],
  text: true,
  binary: true,
  tests: ['LAS'],
  options: DEFAULT_LAS_OPTIONS
};
const _typecheckLoader = LASLoader;
//# sourceMappingURL=las-loader.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/las/dist/esm/lib/get-las-schema.js":
/*!*********************************************************************!*\
  !*** ./node_modules/@loaders.gl/las/dist/esm/lib/get-las-schema.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "getLASSchema": () => (/* binding */ getLASSchema),
/* harmony export */   "makeMetadataFromLasHeader": () => (/* binding */ makeMetadataFromLasHeader)
/* harmony export */ });
/* harmony import */ var _loaders_gl_schema__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @loaders.gl/schema */ "./node_modules/@loaders.gl/schema/dist/esm/category/mesh/deduce-mesh-schema.js");

function getLASSchema(lasHeader, attributes) {
  const metadataMap = makeMetadataFromLasHeader(lasHeader);
  const schema = (0,_loaders_gl_schema__WEBPACK_IMPORTED_MODULE_0__.deduceMeshSchema)(attributes, metadataMap);
  return schema;
}
function makeMetadataFromLasHeader(lasHeader) {
  const metadataMap = new Map();
  metadataMap.set('las_pointsOffset', lasHeader.pointsOffset.toString(10));
  metadataMap.set('las_pointsFormatId', lasHeader.pointsFormatId.toString(10));
  metadataMap.set('las_pointsStructSize', lasHeader.pointsStructSize.toString(10));
  metadataMap.set('las_pointsCount', lasHeader.pointsCount.toString(10));
  metadataMap.set('las_scale', JSON.stringify(lasHeader.scale));
  metadataMap.set('las_offset', JSON.stringify(lasHeader.offset));

  if (lasHeader.maxs !== undefined) {
    metadataMap.set('las_maxs', JSON.stringify(lasHeader.maxs));
  }

  if (lasHeader.mins !== undefined) {
    metadataMap.set('las_mins', JSON.stringify(lasHeader.mins));
  }

  metadataMap.set('las_totalToRead', lasHeader.totalToRead.toString(10));
  metadataMap.set('las_pointsFortotalReadmatId', lasHeader.totalRead.toString(10));

  if (lasHeader.versionAsString !== undefined) {
    metadataMap.set('las_versionAsString', lasHeader.versionAsString);
  }

  if (lasHeader.isCompressed !== undefined) {
    metadataMap.set('las_isCompressed', lasHeader.isCompressed.toString());
  }

  return metadataMap;
}
//# sourceMappingURL=get-las-schema.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/las/dist/esm/lib/laslaz-decoder.js":
/*!*********************************************************************!*\
  !*** ./node_modules/@loaders.gl/las/dist/esm/lib/laslaz-decoder.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "LASFile": () => (/* binding */ LASFile),
/* harmony export */   "LASModuleWasLoaded": () => (/* binding */ LASModuleWasLoaded)
/* harmony export */ });
/* harmony import */ var _babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @babel/runtime/helpers/esm/defineProperty */ "./node_modules/@babel/runtime/helpers/esm/defineProperty.js");
/* harmony import */ var _libs_laz_perf__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./libs/laz-perf */ "./node_modules/@loaders.gl/las/dist/esm/lib/libs/laz-perf.js");


let Module = null;
const POINT_FORMAT_READERS = {
  0: dv => {
    return {
      position: [dv.getInt32(0, true), dv.getInt32(4, true), dv.getInt32(8, true)],
      intensity: dv.getUint16(12, true),
      classification: dv.getUint8(15)
    };
  },
  1: dv => {
    return {
      position: [dv.getInt32(0, true), dv.getInt32(4, true), dv.getInt32(8, true)],
      intensity: dv.getUint16(12, true),
      classification: dv.getUint8(15)
    };
  },
  2: dv => {
    return {
      position: [dv.getInt32(0, true), dv.getInt32(4, true), dv.getInt32(8, true)],
      intensity: dv.getUint16(12, true),
      classification: dv.getUint8(15),
      color: [dv.getUint16(20, true), dv.getUint16(22, true), dv.getUint16(24, true)]
    };
  },
  3: dv => {
    return {
      position: [dv.getInt32(0, true), dv.getInt32(4, true), dv.getInt32(8, true)],
      intensity: dv.getUint16(12, true),
      classification: dv.getUint8(15),
      color: [dv.getUint16(28, true), dv.getUint16(30, true), dv.getUint16(32, true)]
    };
  }
};

function readAs(buf, Type = {}, offset, count) {
  count = count === undefined || count === 0 ? 1 : count;
  const sub = buf.slice(offset, offset + Type.BYTES_PER_ELEMENT * count);
  const r = new Type(sub);

  if (count === 1) {
    return r[0];
  }

  const ret = [];

  for (let i = 0; i < count; i++) {
    ret.push(r[i]);
  }

  return ret;
}

function parseLASHeader(arraybuffer) {
  let start = 32 * 3 + 35;
  const o = {
    pointsOffset: readAs(arraybuffer, Uint32Array, 32 * 3),
    pointsFormatId: readAs(arraybuffer, Uint8Array, 32 * 3 + 8),
    pointsStructSize: readAs(arraybuffer, Uint16Array, 32 * 3 + 8 + 1),
    pointsCount: readAs(arraybuffer, Uint32Array, 32 * 3 + 11),
    scale: readAs(arraybuffer, Float64Array, start, 3)
  };
  start += 24;
  o.offset = readAs(arraybuffer, Float64Array, start, 3);
  start += 24;
  const bounds = readAs(arraybuffer, Float64Array, start, 6);
  start += 48;
  o.maxs = [bounds[0], bounds[2], bounds[4]];
  o.mins = [bounds[1], bounds[3], bounds[5]];
  return o;
}

class LASLoader {
  constructor(arraybuffer) {
    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "arraybuffer", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "readOffset", 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "header", {
      pointsOffset: 0,
      pointsFormatId: 0,
      pointsStructSize: 0,
      pointsCount: 0,
      scale: [0, 0, 0],
      offset: [0, 0, 0],
      maxs: [0],
      mins: [0],
      totalToRead: 0,
      totalRead: 0,
      versionAsString: '',
      isCompressed: true
    });

    this.arraybuffer = arraybuffer;
  }

  open() {
    return true;
  }

  getHeader() {
    this.header = parseLASHeader(this.arraybuffer);
    return this.header;
  }

  readData(count, skip) {
    const {
      header,
      arraybuffer
    } = this;

    if (!header) {
      throw new Error('Cannot start reading data till a header request is issued');
    }

    let {
      readOffset
    } = this;
    let start;

    if (skip <= 1) {
      count = Math.min(count, header.pointsCount - readOffset);
      start = header.pointsOffset + readOffset * header.pointsStructSize;
      const end = start + count * header.pointsStructSize;
      readOffset += count;
      this.readOffset = readOffset;
      return {
        buffer: arraybuffer.slice(start, end),
        count,
        hasMoreData: readOffset < header.pointsCount
      };
    }

    const pointsToRead = Math.min(count * skip, header.pointsCount - readOffset);
    const bufferSize = Math.ceil(pointsToRead / skip);
    let pointsRead = 0;
    const buf = new Uint8Array(bufferSize * header.pointsStructSize);

    for (let i = 0; i < pointsToRead; i++) {
      if (i % skip === 0) {
        start = header.pointsOffset + readOffset * header.pointsStructSize;
        const src = new Uint8Array(arraybuffer, start, header.pointsStructSize);
        buf.set(src, pointsRead * header.pointsStructSize);
        pointsRead++;
      }

      readOffset++;
    }

    this.readOffset = readOffset;
    return {
      buffer: buf.buffer,
      count: pointsRead,
      hasMoreData: readOffset < header.pointsCount
    };
  }

  close() {
    this.arraybuffer = null;
    return true;
  }

}

class LAZLoader {
  constructor(arraybuffer) {
    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "arraybuffer", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "instance", null);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "header", null);

    this.arraybuffer = arraybuffer;

    if (!Module) {
      Module = (0,_libs_laz_perf__WEBPACK_IMPORTED_MODULE_1__["default"])();
    }
  }

  open() {
    try {
      const {
        arraybuffer
      } = this;
      this.instance = new Module.LASZip();
      const abInt = new Uint8Array(arraybuffer);

      const buf = Module._malloc(arraybuffer.byteLength);

      this.instance.arraybuffer = arraybuffer;
      this.instance.buf = buf;
      Module.HEAPU8.set(abInt, buf);
      this.instance.open(buf, arraybuffer.byteLength);
      this.instance.readOffset = 0;
      return true;
    } catch (error) {
      throw new Error("Failed to open file: ".concat(error.message));
    }
  }

  getHeader() {
    if (!this.instance) {
      throw new Error('You need to open the file before trying to read header');
    }

    try {
      const header = parseLASHeader(this.instance.arraybuffer);
      header.pointsFormatId &= 0x3f;
      this.header = header;
      return header;
    } catch (error) {
      throw new Error("Failed to get header: ".concat(error.message));
    }
  }

  readData(count, offset, skip) {
    if (!this.instance) {
      throw new Error('You need to open the file before trying to read stuff');
    }

    const {
      header,
      instance
    } = this;

    if (!header) {
      throw new Error('You need to query header before reading, I maintain state that way, sorry :(');
    }

    try {
      const pointsToRead = Math.min(count * skip, header.pointsCount - instance.readOffset);
      const bufferSize = Math.ceil(pointsToRead / skip);
      let pointsRead = 0;
      const thisBuf = new Uint8Array(bufferSize * header.pointsStructSize);

      const bufRead = Module._malloc(header.pointsStructSize);

      for (let i = 0; i < pointsToRead; i++) {
        instance.getPoint(bufRead);

        if (i % skip === 0) {
          const a = new Uint8Array(Module.HEAPU8.buffer, bufRead, header.pointsStructSize);
          thisBuf.set(a, pointsRead * header.pointsStructSize);
          pointsRead++;
        }

        instance.readOffset++;
      }

      return {
        buffer: thisBuf.buffer,
        count: pointsRead,
        hasMoreData: instance.readOffset < header.pointsCount
      };
    } catch (error) {
      throw new Error("Failed to read data: ".concat(error.message));
    }
  }

  close() {
    try {
      if (this.instance !== null) {
        this.instance.delete();
        this.instance = null;
      }

      return true;
    } catch (error) {
      throw new Error("Failed to close file: ".concat(error.message));
    }
  }

}

class LASDecoder {
  constructor(buffer, len, header) {
    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "arrayb", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "decoder", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "pointsCount", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "pointSize", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "scale", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "offset", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "mins", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "maxs", void 0);

    this.arrayb = buffer;
    this.decoder = POINT_FORMAT_READERS[header.pointsFormatId];
    this.pointsCount = len;
    this.pointSize = header.pointsStructSize;
    this.scale = header.scale;
    this.offset = header.offset;
    this.mins = header.mins;
    this.maxs = header.maxs;
  }

  getPoint(index) {
    if (index < 0 || index >= this.pointsCount) {
      throw new Error('Point index out of range');
    }

    const dv = new DataView(this.arrayb, index * this.pointSize, this.pointSize);
    return this.decoder(dv);
  }

}

class LASFile {
  constructor(arraybuffer) {
    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "arraybuffer", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "formatId", 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "loader", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "isCompressed", true);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "isOpen", false);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "version", 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "versionAsString", '');

    this.arraybuffer = arraybuffer;

    if (this.determineVersion() > 13) {
      throw new Error('Only file versions <= 1.3 are supported at this time');
    }

    this.determineFormat();

    if (POINT_FORMAT_READERS[this.formatId] === undefined) {
      throw new Error('The point format ID is not supported');
    }

    this.loader = this.isCompressed ? new LAZLoader(this.arraybuffer) : new LASLoader(this.arraybuffer);
  }

  determineFormat() {
    const formatId = readAs(this.arraybuffer, Uint8Array, 32 * 3 + 8);
    const bit7 = (formatId & 0x80) >> 7;
    const bit6 = (formatId & 0x40) >> 6;

    if (bit7 === 1 && bit6 === 1) {
      throw new Error('Old style compression not supported');
    }

    this.formatId = formatId & 0x3f;
    this.isCompressed = bit7 === 1 || bit6 === 1;
  }

  determineVersion() {
    const ver = new Int8Array(this.arraybuffer, 24, 2);
    this.version = ver[0] * 10 + ver[1];
    this.versionAsString = "".concat(ver[0], ".").concat(ver[1]);
    return this.version;
  }

  open() {
    if (this.loader.open()) {
      this.isOpen = true;
    }
  }

  getHeader() {
    return this.loader.getHeader();
  }

  readData(count, start, skip) {
    return this.loader.readData(count, start, skip);
  }

  close() {
    if (this.loader.close()) {
      this.isOpen = false;
    }
  }

  getUnpacker() {
    return LASDecoder;
  }

}
const LASModuleWasLoaded = false;
//# sourceMappingURL=laslaz-decoder.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/las/dist/esm/lib/libs/laz-perf.js":
/*!********************************************************************!*\
  !*** ./node_modules/@loaders.gl/las/dist/esm/lib/libs/laz-perf.js ***!
  \********************************************************************/
/***/ ((module, __webpack_exports__, __webpack_require__) => {

"use strict";
var __dirname = "/";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ getModule)
/* harmony export */ });
/* module decorator */ module = __webpack_require__.hmd(module);
function getModule(){var Module=typeof Module!=='undefined'?Module:{};var moduleOverrides={};var key;for(key in Module){if(Module.hasOwnProperty(key)){moduleOverrides[key]=Module[key];}}var arguments_=[];var thisProgram='./this.program';var quit_=function(status,toThrow){throw toThrow;};var ENVIRONMENT_IS_WEB=false;var ENVIRONMENT_IS_WORKER=false;var ENVIRONMENT_IS_NODE=false;var ENVIRONMENT_IS_SHELL=false;ENVIRONMENT_IS_WEB=typeof window==='object';ENVIRONMENT_IS_WORKER=typeof importScripts==='function';ENVIRONMENT_IS_NODE=typeof process==='object'&&typeof process.versions==='object'&&typeof process.versions.node==='string';ENVIRONMENT_IS_SHELL=!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_NODE&&!ENVIRONMENT_IS_WORKER;var scriptDirectory='';function locateFile(path){if(Module['locateFile']){return Module['locateFile'](path,scriptDirectory);}return scriptDirectory+path;}var read_,readAsync,readBinary,setWindowTitle;var nodeFS;var nodePath;if(ENVIRONMENT_IS_NODE){if(ENVIRONMENT_IS_WORKER){scriptDirectory=(__webpack_require__(/*! path */ "?418a").dirname)(scriptDirectory)+'/';}else{scriptDirectory=__dirname+'/';}read_=function shell_read(filename,binary){var ret=tryParseAsDataURI(filename);if(ret){return binary?ret:ret.toString();}if(!nodeFS)nodeFS=__webpack_require__(/*! fs */ "?4515");if(!nodePath)nodePath=__webpack_require__(/*! path */ "?418a");filename=nodePath['normalize'](filename);return nodeFS['readFileSync'](filename,binary?null:'utf8');};readBinary=function readBinary(filename){var ret=read_(filename,true);if(!ret.buffer){ret=new Uint8Array(ret);}assert(ret.buffer);return ret;};if(process['argv'].length>1){thisProgram=process['argv'][1].replace(/\\/g,'/');}arguments_=process['argv'].slice(2);if(true){module['exports']=Module;}process['on']('uncaughtException',function(ex){if(!(ex instanceof ExitStatus)){throw ex;}});process['on']('unhandledRejection',abort);quit_=function(status){process['exit'](status);};Module['inspect']=function(){return'[Emscripten Module object]';};}else if(ENVIRONMENT_IS_SHELL){if(typeof read!='undefined'){read_=function shell_read(f){var data=tryParseAsDataURI(f);if(data){return intArrayToString(data);}return read(f);};}readBinary=function readBinary(f){var data;data=tryParseAsDataURI(f);if(data){return data;}if(typeof readbuffer==='function'){return new Uint8Array(readbuffer(f));}data=read(f,'binary');assert(typeof data==='object');return data;};if(typeof scriptArgs!='undefined'){arguments_=scriptArgs;}else if(typeof arguments!='undefined'){arguments_=arguments;}if(typeof quit==='function'){quit_=function(status){quit(status);};}if(typeof print!=='undefined'){if(typeof console==='undefined')console={};console.log=print;console.warn=console.error=typeof printErr!=='undefined'?printErr:print;}}else if(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER){if(ENVIRONMENT_IS_WORKER){scriptDirectory=self.location.href;}else if(document.currentScript){scriptDirectory=document.currentScript.src;}if(scriptDirectory.indexOf('blob:')!==0){scriptDirectory=scriptDirectory.substr(0,scriptDirectory.lastIndexOf('/')+1);}else{scriptDirectory='';}{read_=function shell_read(url){try{var xhr=new XMLHttpRequest();xhr.open('GET',url,false);xhr.send(null);return xhr.responseText;}catch(err){var data=tryParseAsDataURI(url);if(data){return intArrayToString(data);}throw err;}};if(ENVIRONMENT_IS_WORKER){readBinary=function readBinary(url){try{var xhr=new XMLHttpRequest();xhr.open('GET',url,false);xhr.responseType='arraybuffer';xhr.send(null);return new Uint8Array(xhr.response);}catch(err){var data=tryParseAsDataURI(url);if(data){return data;}throw err;}};}readAsync=function readAsync(url,onload,onerror){var xhr=new XMLHttpRequest();xhr.open('GET',url,true);xhr.responseType='arraybuffer';xhr.onload=function xhr_onload(){if(xhr.status==200||xhr.status==0&&xhr.response){onload(xhr.response);return;}var data=tryParseAsDataURI(url);if(data){onload(data.buffer);return;}onerror();};xhr.onerror=onerror;xhr.send(null);};}setWindowTitle=function(title){document.title=title;};}else{}var out=Module['print']||console.log.bind(console);var err=Module['printErr']||console.warn.bind(console);for(key in moduleOverrides){if(moduleOverrides.hasOwnProperty(key)){Module[key]=moduleOverrides[key];}}moduleOverrides=null;if(Module['arguments'])arguments_=Module['arguments'];if(Module['thisProgram'])thisProgram=Module['thisProgram'];if(Module['quit'])quit_=Module['quit'];var STACK_ALIGN=16;function dynamicAlloc(size){var ret=HEAP32[DYNAMICTOP_PTR>>2];var end=ret+size+15&-16;HEAP32[DYNAMICTOP_PTR>>2]=end;return ret;}function getNativeTypeSize(type){switch(type){case'i1':case'i8':return 1;case'i16':return 2;case'i32':return 4;case'i64':return 8;case'float':return 4;case'double':return 8;default:{if(type[type.length-1]==='*'){return 4;}else if(type[0]==='i'){var bits=Number(type.substr(1));assert(bits%8===0,'getNativeTypeSize invalid bits '+bits+', type '+type);return bits/8;}else{return 0;}}}}function warnOnce(text){if(!warnOnce.shown)warnOnce.shown={};if(!warnOnce.shown[text]){warnOnce.shown[text]=1;err(text);}}var jsCallStartIndex=1;var functionPointers=new Array(0);var funcWrappers={};function dynCall(sig,ptr,args){if(args&&args.length){return Module['dynCall_'+sig].apply(null,[ptr].concat(args));}else{return Module['dynCall_'+sig].call(null,ptr);}}var tempRet0=0;var setTempRet0=function(value){tempRet0=value;};var getTempRet0=function(){return tempRet0;};var GLOBAL_BASE=8;var wasmBinary;if(Module['wasmBinary'])wasmBinary=Module['wasmBinary'];var noExitRuntime;if(Module['noExitRuntime'])noExitRuntime=Module['noExitRuntime'];function setValue(ptr,value,type,noSafe){type=type||'i8';if(type.charAt(type.length-1)==='*')type='i32';switch(type){case'i1':HEAP8[ptr>>0]=value;break;case'i8':HEAP8[ptr>>0]=value;break;case'i16':HEAP16[ptr>>1]=value;break;case'i32':HEAP32[ptr>>2]=value;break;case'i64':tempI64=[value>>>0,(tempDouble=value,+Math_abs(tempDouble)>=+1?tempDouble>+0?(Math_min(+Math_floor(tempDouble/+4294967296),+4294967295)|0)>>>0:~~+Math_ceil((tempDouble-+(~~tempDouble>>>0))/+4294967296)>>>0:0)],HEAP32[ptr>>2]=tempI64[0],HEAP32[ptr+4>>2]=tempI64[1];break;case'float':HEAPF32[ptr>>2]=value;break;case'double':HEAPF64[ptr>>3]=value;break;default:abort('invalid type for setValue: '+type);}}var ABORT=false;var EXITSTATUS=0;function assert(condition,text){if(!condition){abort('Assertion failed: '+text);}}function getCFunc(ident){var func=Module['_'+ident];assert(func,'Cannot call unknown function '+ident+', make sure it is exported');return func;}function ccall(ident,returnType,argTypes,args,opts){var toC={string:function(str){var ret=0;if(str!==null&&str!==undefined&&str!==0){var len=(str.length<<2)+1;ret=stackAlloc(len);stringToUTF8(str,ret,len);}return ret;},array:function(arr){var ret=stackAlloc(arr.length);writeArrayToMemory(arr,ret);return ret;}};function convertReturnValue(ret){if(returnType==='string')return UTF8ToString(ret);if(returnType==='boolean')return Boolean(ret);return ret;}var func=getCFunc(ident);var cArgs=[];var stack=0;if(args){for(var i=0;i<args.length;i++){var converter=toC[argTypes[i]];if(converter){if(stack===0)stack=stackSave();cArgs[i]=converter(args[i]);}else{cArgs[i]=args[i];}}}var ret=func.apply(null,cArgs);ret=convertReturnValue(ret);if(stack!==0)stackRestore(stack);return ret;}var ALLOC_NONE=3;var UTF8Decoder=typeof TextDecoder!=='undefined'?new TextDecoder('utf8'):undefined;function UTF8ArrayToString(heap,idx,maxBytesToRead){var endIdx=idx+maxBytesToRead;var endPtr=idx;while(heap[endPtr]&&!(endPtr>=endIdx))++endPtr;if(endPtr-idx>16&&heap.subarray&&UTF8Decoder){return UTF8Decoder.decode(heap.subarray(idx,endPtr));}else{var str='';while(idx<endPtr){var u0=heap[idx++];if(!(u0&128)){str+=String.fromCharCode(u0);continue;}var u1=heap[idx++]&63;if((u0&224)==192){str+=String.fromCharCode((u0&31)<<6|u1);continue;}var u2=heap[idx++]&63;if((u0&240)==224){u0=(u0&15)<<12|u1<<6|u2;}else{u0=(u0&7)<<18|u1<<12|u2<<6|heap[idx++]&63;}if(u0<65536){str+=String.fromCharCode(u0);}else{var ch=u0-65536;str+=String.fromCharCode(55296|ch>>10,56320|ch&1023);}}}return str;}function UTF8ToString(ptr,maxBytesToRead){return ptr?UTF8ArrayToString(HEAPU8,ptr,maxBytesToRead):'';}function stringToUTF8Array(str,heap,outIdx,maxBytesToWrite){if(!(maxBytesToWrite>0))return 0;var startIdx=outIdx;var endIdx=outIdx+maxBytesToWrite-1;for(var i=0;i<str.length;++i){var u=str.charCodeAt(i);if(u>=55296&&u<=57343){var u1=str.charCodeAt(++i);u=65536+((u&1023)<<10)|u1&1023;}if(u<=127){if(outIdx>=endIdx)break;heap[outIdx++]=u;}else if(u<=2047){if(outIdx+1>=endIdx)break;heap[outIdx++]=192|u>>6;heap[outIdx++]=128|u&63;}else if(u<=65535){if(outIdx+2>=endIdx)break;heap[outIdx++]=224|u>>12;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63;}else{if(outIdx+3>=endIdx)break;heap[outIdx++]=240|u>>18;heap[outIdx++]=128|u>>12&63;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63;}}heap[outIdx]=0;return outIdx-startIdx;}function stringToUTF8(str,outPtr,maxBytesToWrite){return stringToUTF8Array(str,HEAPU8,outPtr,maxBytesToWrite);}function lengthBytesUTF8(str){var len=0;for(var i=0;i<str.length;++i){var u=str.charCodeAt(i);if(u>=55296&&u<=57343)u=65536+((u&1023)<<10)|str.charCodeAt(++i)&1023;if(u<=127)++len;else if(u<=2047)len+=2;else if(u<=65535)len+=3;else len+=4;}return len;}var UTF16Decoder=typeof TextDecoder!=='undefined'?new TextDecoder('utf-16le'):undefined;function UTF16ToString(ptr,maxBytesToRead){var endPtr=ptr;var idx=endPtr>>1;var maxIdx=idx+maxBytesToRead/2;while(!(idx>=maxIdx)&&HEAPU16[idx])++idx;endPtr=idx<<1;if(endPtr-ptr>32&&UTF16Decoder){return UTF16Decoder.decode(HEAPU8.subarray(ptr,endPtr));}else{var i=0;var str='';while(1){var codeUnit=HEAP16[ptr+i*2>>1];if(codeUnit==0||i==maxBytesToRead/2)return str;++i;str+=String.fromCharCode(codeUnit);}}}function stringToUTF16(str,outPtr,maxBytesToWrite){if(maxBytesToWrite===undefined){maxBytesToWrite=2147483647;}if(maxBytesToWrite<2)return 0;maxBytesToWrite-=2;var startPtr=outPtr;var numCharsToWrite=maxBytesToWrite<str.length*2?maxBytesToWrite/2:str.length;for(var i=0;i<numCharsToWrite;++i){var codeUnit=str.charCodeAt(i);HEAP16[outPtr>>1]=codeUnit;outPtr+=2;}HEAP16[outPtr>>1]=0;return outPtr-startPtr;}function lengthBytesUTF16(str){return str.length*2;}function UTF32ToString(ptr,maxBytesToRead){var i=0;var str='';while(!(i>=maxBytesToRead/4)){var utf32=HEAP32[ptr+i*4>>2];if(utf32==0)break;++i;if(utf32>=65536){var 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i=0;i<str.length;++i){HEAP8[buffer++>>0]=str.charCodeAt(i);}if(!dontAddNull)HEAP8[buffer>>0]=0;}var buffer,HEAP8,HEAPU8,HEAP16,HEAPU16,HEAP32,HEAPU32,HEAPF32,HEAPF64;function updateGlobalBufferAndViews(buf){buffer=buf;Module['HEAP8']=HEAP8=new Int8Array(buf);Module['HEAP16']=HEAP16=new Int16Array(buf);Module['HEAP32']=HEAP32=new Int32Array(buf);Module['HEAPU8']=HEAPU8=new Uint8Array(buf);Module['HEAPU16']=HEAPU16=new Uint16Array(buf);Module['HEAPU32']=HEAPU32=new Uint32Array(buf);Module['HEAPF32']=HEAPF32=new Float32Array(buf);Module['HEAPF64']=HEAPF64=new Float64Array(buf);}var STACK_BASE=22384,DYNAMIC_BASE=5265264,DYNAMICTOP_PTR=22176;var INITIAL_INITIAL_MEMORY=Module['INITIAL_MEMORY']||167772160;if(Module['buffer']){buffer=Module['buffer'];}else{buffer=new ArrayBuffer(INITIAL_INITIAL_MEMORY);}INITIAL_INITIAL_MEMORY=buffer.byteLength;updateGlobalBufferAndViews(buffer);HEAP32[DYNAMICTOP_PTR>>2]=DYNAMIC_BASE;function callRuntimeCallbacks(callbacks){while(callbacks.length>0){var callback=callbacks.shift();if(typeof callback=='function'){callback(Module);continue;}var func=callback.func;if(typeof func==='number'){if(callback.arg===undefined){Module['dynCall_v'](func);}else{Module['dynCall_vi'](func,callback.arg);}}else{func(callback.arg===undefined?null:callback.arg);}}}var __ATPRERUN__=[];var __ATINIT__=[];var __ATMAIN__=[];var __ATPOSTRUN__=[];var runtimeInitialized=false;var runtimeExited=false;function preRun(){if(Module['preRun']){if(typeof Module['preRun']=='function')Module['preRun']=[Module['preRun']];while(Module['preRun'].length){addOnPreRun(Module['preRun'].shift());}}callRuntimeCallbacks(__ATPRERUN__);}function initRuntime(){runtimeInitialized=true;callRuntimeCallbacks(__ATINIT__);}function preMain(){callRuntimeCallbacks(__ATMAIN__);}function exitRuntime(){runtimeExited=true;}function postRun(){if(Module['postRun']){if(typeof Module['postRun']=='function')Module['postRun']=[Module['postRun']];while(Module['postRun'].length){addOnPostRun(Module['postRun'].shift());}}callRuntimeCallbacks(__ATPOSTRUN__);}function addOnPreRun(cb){__ATPRERUN__.unshift(cb);}function addOnPostRun(cb){__ATPOSTRUN__.unshift(cb);}var Math_abs=Math.abs;var Math_ceil=Math.ceil;var Math_floor=Math.floor;var Math_min=Math.min;var runDependencies=0;var runDependencyWatcher=null;var dependenciesFulfilled=null;function addRunDependency(id){runDependencies++;if(Module['monitorRunDependencies']){Module['monitorRunDependencies'](runDependencies);}}function removeRunDependency(id){runDependencies--;if(Module['monitorRunDependencies']){Module['monitorRunDependencies'](runDependencies);}if(runDependencies==0){if(runDependencyWatcher!==null){clearInterval(runDependencyWatcher);runDependencyWatcher=null;}if(dependenciesFulfilled){var 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mFieXRlc0VOUzJfMjBzdGFuZGFyZF9kaWZmX21ldGhvZElTRV9FRUVFRUVOU18xNGRlZmF1bHRfZGVsZXRlSVNJX0VFTlNfOWFsbG9jYXRvcklTSV9FRUVFAE5TdDNfXzIxNGRlZmF1bHRfZGVsZXRlSU42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJTlMxXzJpbzE4X19pZnN0cmVhbV93cmFwcGVySU5TMV83c3RyZWFtczEzbWVtb3J5X3N0cmVhbUVFRUVFTlMyXzVmaWVsZElOUzJfM2xhczEwZXh0cmFieXRlc0VOUzJfMjBzdGFuZGFyZF9kaWZmX21ldGhvZElTRV9FRUVFRUVFRQBONmxhc3ppcDdmb3JtYXRzMjFkeW5hbWljX2RlY29tcHJlc3NvcjFJTlNfOGRlY29kZXJzMTBhcml0aG1ldGljSU5TXzJpbzE4X19pZnN0cmVhbV93cmFwcGVySU5TXzdzdHJlYW1zMTNtZW1vcnlfc3RyZWFtRUVFRUVOUzBfMTlyZWNvcmRfZGVjb21wcmVzc29ySUpOUzBfNWZpZWxkSU5TMF8zbGFzN3BvaW50MTBFTlMwXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJU0RfRUVFRUVFRUVFAE5TdDNfXzIyMF9fc2hhcmVkX3B0cl9wb2ludGVySVBONmxhc3ppcDdmb3JtYXRzMjFkeW5hbWljX2RlY29tcHJlc3NvcjFJTlMxXzhkZWNvZGVyczEwYXJpdGhtZXRpY0lOUzFfMmlvMThfX2lmc3RyZWFtX3dyYXBwZXJJTlMxXzdzdHJlYW1zMTNtZW1vcnlfc3RyZWFtRUVFRUVOUzJfMTlyZWNvcmRfZGVjb21wcmVzc29ySUpOUzJfNWZpZWxkSU5TMl8zbGFzN3BvaW50MTBFTlMyXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJU0ZfRUVFRUVFRUVFTlNfMTRkZWZhdWx0X2RlbGV0ZUlTS19FRU5TXzlhbGxvY2F0b3JJU0tfRUVFRQBOU3QzX18yMTRkZWZhdWx0X2RlbGV0ZUlONmxhc3ppcDdmb3JtYXRzMjFkeW5hbWljX2RlY29tcHJlc3NvcjFJTlMxXzhkZWNvZGVyczEwYXJpdGhtZXRpY0lOUzFfMmlvMThfX2lmc3RyZWFtX3dyYXBwZXJJTlMxXzdzdHJlYW1zMTNtZW1vcnlfc3RyZWFtRUVFRUVOUzJfMTlyZWNvcmRfZGVjb21wcmVzc29ySUpOUzJfNWZpZWxkSU5TMl8zbGFzN3BvaW50MTBFTlMyXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJU0ZfRUVFRUVFRUVFRUUATjZsYXN6aXA3Zm9ybWF0czIxZHluYW1pY19kZWNvbXByZXNzb3IxSU5TXzhkZWNvZGVyczEwYXJpdGhtZXRpY0lOU18yaW8xOF9faWZzdHJlYW1fd3JhcHBlcklOU183c3RyZWFtczEzbWVtb3J5X3N0cmVhbUVFRUVFTlMwXzE5cmVjb3JkX2RlY29tcHJlc3NvcklKTlMwXzVmaWVsZElOUzBfM2xhczdwb2ludDEwRU5TMF8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSVNEX0VFRUVOU0JfSU5TQ183Z3BzdGltZUVOU0VfSVNIX0VFRUVFRUVFRQBOU3QzX18yMjBfX3NoYXJlZF9wdHJfcG9pbnRlcklQTjZsYXN6aXA3Zm9ybWF0czIxZHluYW1pY19kZWNvbXByZXNzb3IxSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJTlMxXzJpbzE4X19pZnN0cmVhbV93cmFwcGVySU5TMV83c3RyZWFtczEzbWVtb3J5X3N0cmVhbUVFRUVFTlMyXzE5cmVjb3JkX2RlY29tcHJlc3NvcklKTlMyXzVmaWVsZElOUzJfM2xhczdwb2ludDEwRU5TMl8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSVNGX0VFRUVOU0RfSU5TRV83Z3BzdGltZUVOU0dfSVNKX0VFRUVFRUVFRU5TXzE0ZGVmYXVsdF9kZWxldGVJU05fRUVOU185YWxsb2NhdG9ySVNOX0VFRUUATlN0M19fMjE0ZGVmYXVsdF9kZWxldGVJTjZsYXN6aXA3Zm9ybWF0czIxZHluYW1pY19kZWNvbXByZXNzb3IxSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJTlMxXzJpbzE4X19pZnN0cmVhbV93cmFwcGVySU5TMV83c3RyZWFtczEzbWVtb3J5X3N0cmVhbUVFRUVFTlMyXzE5cmVjb3JkX2RlY29tcHJlc3NvcklKTlMyXzVmaWVsZElOUzJfM2xhczdwb2ludDEwRU5TMl8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSVNGX0VFRUVOU0RfSU5TRV83Z3BzdGltZUVOU0dfSVNKX0VFRUVFRUVFRUVFAE42bGFzemlwN2Zvcm1hdHMyMWR5bmFtaWNfZGVjb21wcmVzc29yMUlOU184ZGVjb2RlcnMxMGFyaXRobWV0aWNJTlNfMmlvMThfX2lmc3RyZWFtX3dyYXBwZXJJTlNfN3N0cmVhbXMxM21lbW9yeV9zdHJlYW1FRUVFRU5TMF8xOXJlY29yZF9kZWNvbXByZXNzb3JJSk5TMF81ZmllbGRJTlMwXzNsYXM3cG9pbnQxMEVOUzBfMjBzdGFuZGFyZF9kaWZmX21ldGhvZElTRF9FRUVFTlNCX0lOU0NfM3JnYkVOU0VfSVNIX0VFRUVFRUVFRQBOU3QzX18yMjBfX3NoYXJlZF9wdHJfcG9pbnRlcklQTjZsYXN6aXA3Zm9ybWF0czIxZHluYW1pY19kZWNvbXByZXNzb3IxSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJTlMxXzJpbzE4X19pZnN0cmVhbV93cmFwcGVySU5TMV83c3RyZWFtczEzbWVtb3J5X3N0cmVhbUVFRUVFTlMyXzE5cmVjb3JkX2RlY29tcHJlc3NvcklKTlMyXzVmaWVsZElOUzJfM2xhczdwb2ludDEwRU5TMl8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSVNGX0VFRUVOU0RfSU5TRV8zcmdiRU5TR19JU0pfRUVFRUVFRUVFTlNfMTRkZWZhdWx0X2RlbGV0ZUlTTl9FRU5TXzlhbGxvY2F0b3JJU05fRUVFRQBOU3QzX18yMTRkZWZhdWx0X2RlbGV0ZUlONmxhc3ppcDdmb3JtYXRzMjFkeW5hbWljX2RlY29tcHJlc3NvcjFJTlMxXzhkZWNvZGVyczEwYXJpdGhtZXRpY0lOUzFfMmlvMThfX2lmc3RyZWFtX3dyYXBwZXJJTlMxXzdzdHJlYW1zMTNtZW1vcnlfc3RyZWFtRUVFRUVOUzJfMTlyZWNvcmRfZGVjb21wcmVzc29ySUpOUzJfNWZpZWxkSU5TMl8zbGFzN3BvaW50MTBFTlMyXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJU0ZfRUVFRU5TRF9JTlNFXzNyZ2JFTlNHX0lTSl9FRUVFRUVFRUVFRQBONmxhc3ppcDdmb3JtYXRzMjFkeW5hbWljX2RlY29tcHJlc3NvcjFJTlNfOGRlY29kZXJzMTBhcml0aG1ldGljSU5TXzJpbzE4X19pZnN0cmVhbV93cmFwcGVySU5TXzdzdHJlYW1zMTNtZW1vcnlfc3RyZWFtRUVFRUVOUzBfMTlyZWNvcmRfZGVjb21wcmVzc29ySUpOUzBfNWZpZWxkSU5TMF8zbGFzN3BvaW50MTBFTlMwXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJU0RfRUVFRU5TQl9JTlNDXzdncHN0aW1lRU5TRV9JU0hfRUVFRU5TQl9JTlNDXzNyZ2JFTlNFX0lTS19FRUVFRUVFRUUATlN0M19fMjIwX19zaGFyZWRfcHRyX3BvaW50ZXJJUE42bGFzemlwN2Zvcm1hdHMyMWR5bmFtaWNfZGVjb21wcmVzc29yMUlOUzFfOGRlY29kZXJzMTBhcml0aG1ldGljSU5TMV8yaW8xOF9faWZzdHJlYW1fd3JhcHBlcklOUzFfN3N0cmVhbXMxM21lbW9yeV9zdHJlYW1FRUVFRU5TMl8xOXJlY29yZF9kZWNvbXByZXNzb3JJSk5TMl81ZmllbGRJTlMyXzNsYXM3cG9pbnQxMEVOUzJfMjBzdGFuZGFyZF9kaWZmX21ldGhvZElTRl9FRUVFTlNEX0lOU0VfN2dwc3RpbWVFTlNHX0lTSl9FRUVFTlNEX0lOU0VfM3JnYkVOU0dfSVNNX0VFRUVFRUVFRU5TXzE0ZGVmYXVsdF9kZWxldGVJU1FfRUVOU185YWxsb2NhdG9ySVNRX0VFRUUATlN0M19fMjE0ZGVmYXVsdF9kZWxldGVJTjZsYXN6aXA3Zm9ybWF0czIxZHluYW1pY19kZWNvbXByZXNzb3IxSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJTlMxXzJpbzE4X19pZnN0cmVhbV93cmFwcGVySU5TMV83c3RyZWFtczEzbWVtb3J5X3N0cmVhbUVFRUVFTlMyXzE5cmVjb3JkX2RlY29tcHJlc3NvcklKTlMyXzVmaWVsZElOUzJfM2xhczdwb2ludDEwRU5TMl8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSVNGX0VFRUVOU0RfSU5TRV83Z3BzdGltZUVOU0dfSVNKX0VFRUVOU0RfSU5TRV8zcmdiRU5TR19JU01fRUVFRUVFRUVFRUUATlN0M19fMjIwX19zaGFyZWRfcHRyX3BvaW50ZXJJUDEwYnVmX3N0cmVhbU5TXzE0ZGVmYXVsdF9kZWxldGVJUzFfRUVOU185YWxsb2NhdG9ySVMxX0VFRUUATlN0M19fMjE0ZGVmYXVsdF9kZWxldGVJMTBidWZfc3RyZWFtRUUATlN0M19fMjIwX19zaGFyZWRfcHRyX3BvaW50ZXJJUE42bGFzemlwOGRlY29kZXJzMTBhcml0aG1ldGljSTEwYnVmX3N0cmVhbUVFTlNfMTRkZWZhdWx0X2RlbGV0ZUlTNV9FRU5TXzlhbGxvY2F0b3JJUzVfRUVFRQBOU3QzX18yMTRkZWZhdWx0X2RlbGV0ZUlONmxhc3ppcDhkZWNvZGVyczEwYXJpdGhtZXRpY0kxMGJ1Zl9zdHJlYW1FRUVFAE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZmllbGRfZGVjb21wcmVzc29ySU5TXzhkZWNvZGVyczEwYXJpdGhtZXRpY0kxMGJ1Zl9zdHJlYW1FRUVFAE5TdDNfXzIyMF9fc2hhcmVkX3B0cl9wb2ludGVySVBONmxhc3ppcDdmb3JtYXRzMjZkeW5hbWljX2ZpZWxkX2RlY29tcHJlc3NvcklOUzFfOGRlY29kZXJzMTBhcml0aG1ldGljSTEwYnVmX3N0cmVhbUVFRUVOU18xNGRlZmF1bHRfZGVsZXRlSVM4X0VFTlNfOWFsbG9jYXRvcklTOF9FRUVFAE5TdDNfXzIxNGRlZmF1bHRfZGVsZXRlSU42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZmllbGRfZGVjb21wcmVzc29ySU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJMTBidWZfc3RyZWFtRUVFRUVFAE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TXzhkZWNvZGVyczEwYXJpdGhtZXRpY0kxMGJ1Zl9zdHJlYW1FRU5TMF81ZmllbGRJaU5TMF8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSWlFRUVFRUUATlN0M19fMjIwX19zaGFyZWRfcHRyX3BvaW50ZXJJUE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJMTBidWZfc3RyZWFtRUVOUzJfNWZpZWxkSWlOUzJfMjBzdGFuZGFyZF9kaWZmX21ldGhvZElpRUVFRUVFTlNfMTRkZWZhdWx0X2RlbGV0ZUlTQ19FRU5TXzlhbGxvY2F0b3JJU0NfRUVFRQBOU3QzX18yMTRkZWZhdWx0X2RlbGV0ZUlONmxhc3ppcDdmb3JtYXRzMjZkeW5hbWljX2RlY29tcHJlc3Nvcl9maWVsZElOUzFfOGRlY29kZXJzMTBhcml0aG1ldGljSTEwYnVmX3N0cmVhbUVFTlMyXzVmaWVsZElpTlMyXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJaUVFRUVFRUVFAE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TXzhkZWNvZGVyczEwYXJpdGhtZXRpY0kxMGJ1Zl9zdHJlYW1FRU5TMF81ZmllbGRJak5TMF8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSWpFRUVFRUUATlN0M19fMjIwX19zaGFyZWRfcHRyX3BvaW50ZXJJUE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJMTBidWZfc3RyZWFtRUVOUzJfNWZpZWxkSWpOUzJfMjBzdGFuZGFyZF9kaWZmX21ldGhvZElqRUVFRUVFTlNfMTRkZWZhdWx0X2RlbGV0ZUlTQ19FRU5TXzlhbGxvY2F0b3JJU0NfRUVFRQBOU3QzX18yMTRkZWZhdWx0X2RlbGV0ZUlONmxhc3ppcDdmb3JtYXRzMjZkeW5hbWljX2RlY29tcHJlc3Nvcl9maWVsZElOUzFfOGRlY29kZXJzMTBhcml0aG1ldGljSTEwYnVmX3N0cmVhbUVFTlMyXzVmaWVsZElqTlMyXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJakVFRUVFRUVFAE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TXzhkZWNvZGVyczEwYXJpdGhtZXRpY0kxMGJ1Zl9zdHJlYW1FRU5TMF81ZmllbGRJYU5TMF8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSWFFRUVFRUUATlN0M19fMjIwX19zaGFyZWRfcHRyX3BvaW50ZXJJUE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJMTBidWZfc3RyZWFtRUVOUzJfNWZpZWxkSWFOUzJfMjBzdGFuZGFyZF9kaWZmX21ldGhvZElhRUVFRUVFTlNfMTRkZWZhdWx0X2RlbGV0ZUlTQ19FRU5TXzlhbGxvY2F0b3JJU0NfRUVFRQBOU3QzX18yMTRkZWZhdWx0X2RlbGV0ZUlONmxhc3ppcDdmb3JtYXRzMjZkeW5hbWljX2RlY29tcHJlc3Nvcl9maWVsZElOUzFfOGRlY29kZXJzMTBhcml0aG1ldGljSTEwYnVmX3N0cmVhbUVFTlMyXzVmaWVsZElhTlMyXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJYUVFRUVFRUVFAE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TXzhkZWNvZGVyczEwYXJpdGhtZXRpY0kxMGJ1Zl9zdHJlYW1FRU5TMF81ZmllbGRJc05TMF8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSXNFRUVFRUUATlN0M19fMjIwX19zaGFyZWRfcHRyX3BvaW50ZXJJUE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJMTBidWZfc3RyZWFtRUVOUzJfNWZpZWxkSXNOUzJfMjBzdGFuZGFyZF9kaWZmX21ldGhvZElzRUVFRUVFTlNfMTRkZWZhdWx0X2RlbGV0ZUlTQ19FRU5TXzlhbGxvY2F0b3JJU0NfRUVFRQBOU3QzX18yMTRkZWZhdWx0X2RlbGV0ZUlONmxhc3ppcDdmb3JtYXRzMjZkeW5hbWljX2RlY29tcHJlc3Nvcl9maWVsZElOUzFfOGRlY29kZXJzMTBhcml0aG1ldGljSTEwYnVmX3N0cmVhbUVFTlMyXzVmaWVsZElzTlMyXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJc0VFRUVFRUVFAE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TXzhkZWNvZGVyczEwYXJpdGhtZXRpY0kxMGJ1Zl9zdHJlYW1FRU5TMF81ZmllbGRJaE5TMF8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSWhFRUVFRUUATlN0M19fMjIwX19zaGFyZWRfcHRyX3BvaW50ZXJJUE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJMTBidWZfc3RyZWFtRUVOUzJfNWZpZWxkSWhOUzJfMjBzdGFuZGFyZF9kaWZmX21ldGhvZEloRUVFRUVFTlNfMTRkZWZhdWx0X2RlbGV0ZUlTQ19FRU5TXzlhbGxvY2F0b3JJU0NfRUVFRQBOU3QzX18yMTRkZWZhdWx0X2RlbGV0ZUlONmxhc3ppcDdmb3JtYXRzMjZkeW5hbWljX2RlY29tcHJlc3Nvcl9maWVsZElOUzFfOGRlY29kZXJzMTBhcml0aG1ldGljSTEwYnVmX3N0cmVhbUVFTlMyXzVmaWVsZEloTlMyXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJaEVFRUVFRUVFAE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TXzhkZWNvZGVyczEwYXJpdGhtZXRpY0kxMGJ1Zl9zdHJlYW1FRU5TMF81ZmllbGRJdE5TMF8yMHN0YW5kYXJkX2RpZmZfbWV0aG9kSXRFRUVFRUUATlN0M19fMjIwX19zaGFyZWRfcHRyX3BvaW50ZXJJUE42bGFzemlwN2Zvcm1hdHMyNmR5bmFtaWNfZGVjb21wcmVzc29yX2ZpZWxkSU5TMV84ZGVjb2RlcnMxMGFyaXRobWV0aWNJMTBidWZfc3RyZWFtRUVOUzJfNWZpZWxkSXROUzJfMjBzdGFuZGFyZF9kaWZmX21ldGhvZEl0RUVFRUVFTlNfMTRkZWZhdWx0X2RlbGV0ZUlTQ19FRU5TXzlhbGxvY2F0b3JJU0NfRUVFRQBOU3QzX18yMTRkZWZhdWx0X2RlbGV0ZUlONmxhc3ppcDdmb3JtYXRzMjZkeW5hbWljX2RlY29tcHJlc3Nvcl9maWVsZElOUzFfOGRlY29kZXJzMTBhcml0aG1ldGljSTEwYnVmX3N0cmVhbUVFTlMyXzVmaWVsZEl0TlMyXzIwc3RhbmRhcmRfZGlmZl9tZXRob2RJdEVFRUVFRUVFADZMQVNaaXAAUDZMQVNaaXAAUEs2TEFTWmlwAGlpAHYAdmkAdmlpaWkAdmlpaQBpaWkAMTNEeW5hbWljTEFTWmlwAFAxM0R5bmFtaWNMQVNaaXAAUEsxM0R5bmFtaWNMQVNaaXAAdm9pZABib29sAGNoYXIAc2lnbmVkIGNoYXIAdW5zaWduZWQgY2hhcgBzaG9ydAB1bnNpZ25lZCBzaG9ydABpbnQAdW5zaWduZWQgaW50AGxvbmcAdW5zaWduZWQgbG9uZwBmbG9hdABkb3VibGUAc3RkOjpzdHJpbmcAc3RkOjpiYXNpY19zdHJpbmc8dW5zaWduZWQgY2hhcj4Ac3RkOjp3c3RyaW5nAHN0ZDo6dTE2c3RyaW5nAHN0ZDo6dTMyc3RyaW5nAGVtc2NyaXB0ZW46OnZhbABlbXNjcmlwdGVuOjptZW1vcnlfdmlldzxjaGFyPgBlbXNjcmlwdGVuOjptZW1vcnlfdmlldzxzaWduZWQgY2hhcj4AZW1zY3JpcHRlbjo6bWVtb3J5X3ZpZXc8dW5zaWduZWQgY2hhcj4AZW1zY3JpcHRlbjo6bWVtb3J5X3ZpZXc8c2hvcnQ+AGVtc2NyaXB0ZW46Om1lbW9yeV92aWV3PHVuc2lnbmVkIHNob3J0PgBlbXNjcmlwdGVuOjptZW1vcnlfdmlldzxpbnQ+AGVtc2NyaXB0ZW46Om1lbW9yeV92aWV3PHVuc2lnbmVkIGludD4AZW1zY3JpcHRlbjo6bWVtb3J5X3ZpZXc8bG9uZz4AZW1zY3JpcHRlbjo6bWVtb3J5X3ZpZXc8dW5zaWduZWQgbG9uZz4AZW1zY3JpcHRlbjo6bWVtb3J5X3ZpZXc8aW50OF90PgBlbXNjcmlwdGVuOjptZW1vcnlfdmlldzx1aW50OF90PgBlbXNjcmlwdGVuOjptZW1vcnlfdmlldzxpbnQxNl90PgBlbXNjcmlwdGVuOjptZW1vcnlfdmlldzx1aW50MTZfdD4AZW1zY3JpcHRlbjo6bWVtb3J5X3ZpZXc8aW50MzJfdD4AZW1zY3JpcHRlbjo6bWVtb3J5X3ZpZXc8dWludDMyX3Q+AGVtc2NyaXB0ZW46Om1lbW9yeV92aWV3PGZsb2F0PgBlbXNjcmlwdGVuOjptZW1vcnlfdmlldzxkb3VibGU+AGVtc2NyaXB0ZW46Om1lbW9yeV92aWV3PGxvbmcgZG91YmxlPgBOMTBlbXNjcmlwdGVuMTFtZW1vcnlfdmlld0llRUUATjEwZW1zY3JpcHRlbjExbWVtb3J5X3ZpZXdJZEVFAE4xMGVtc2NyaXB0ZW4xMW1lbW9yeV92aWV3SWZFRQBOMTBlbXNjcmlwdGVuMTFtZW1vcnlfdmlld0ltRUUATjEwZW1zY3JpcHRlbjExbWVtb3J5X3ZpZXdJbEVFAE4xMGVtc2NyaXB0ZW4xMW1lbW9yeV92aWV3SWpFRQBOMTBlbXNjcmlwdGVuMTFtZW1vcnlfdmlld0lpRUUATjEwZW1zY3JpcHRlbjExbWVtb3J5X3ZpZXdJdEVFAE4xMGVtc2NyaXB0ZW4xMW1lbW9yeV92aWV3SXNFRQBOMTBlbXNjcmlwdGVuMTFtZW1vcnlfdmlld0loRUUATjEwZW1zY3JpcHRlbjExbWVtb3J5X3ZpZXdJYUVFAE4xMGVtc2NyaXB0ZW4xMW1lbW9yeV92aWV3SWNFRQBOMTBlbXNjcmlwdGVuM3ZhbEUATlN0M19fMjEyYmFzaWNfc3RyaW5nSURpTlNfMTFjaGFyX3RyYWl0c0lEaUVFTlNfOWFsbG9jYXRvcklEaUVFRUUATlN0M19fMjIxX19iYXNpY19zdHJpbmdfY29tbW9uSUxiMUVFRQBOU3QzX18yMTJiYXNpY19zdHJpbmdJRHNOU18xMWNoYXJfdHJhaXRzSURzRUVOU185YWxsb2NhdG9ySURzRUVFRQBOU3QzX18yMTJiYXNpY19zdHJpbmdJd05TXzExY2hhcl90cmFpdHNJd0VFTlNfOWFsbG9jYXRvckl3RUVFRQBOU3QzX18yMTJiYXNpY19zdHJpbmdJaE5TXzExY2hhcl90cmFpdHNJaEVFTlNfOWFsbG9jYXRvckloRUVFRQBOU3QzX18yMTJiYXNpY19zdHJpbmdJY05TXzExY2hhcl90cmFpdHNJY0VFTlNfOWFsbG9jYXRvckljRUVFRQAtKyAgIDBYMHgAKG51bGwpAC0wWCswWCAwWC0weCsweCAweABpbmYASU5GAG5hbgBOQU4ALgB0ZXJtaW5hdGluZyB3aXRoICVzIGV4Y2VwdGlvbiBvZiB0eXBlICVzOiAlcwB0ZXJtaW5hdGluZyB3aXRoICVzIGV4Y2VwdGlvbiBvZiB0eXBlICVzAHRlcm1pbmF0aW5nIHdpdGggJXMgZm9yZWlnbiBleGNlcHRpb24AdGVybWluYXRpbmcAdW5jYXVnaHQAU3Q5ZXhjZXB0aW9uAE4xMF9fY3h4YWJpdjExNl9fc2hpbV90eXBlX2luZm9FAFN0OXR5cGVfaW5mbwBOMTBfX2N4eGFiaXYxMjBfX3NpX2NsYXNzX3R5cGVfaW5mb0UATjEwX19jeHhhYml2MTE3X19jbGFzc190eXBlX2luZm9FAHRlcm1pbmF0ZV9oYW5kbGVyIHVuZXhwZWN0ZWRseSByZXR1cm5lZABzdGQ6OmJhZF9hbGxvYwBTdDliYWRfYWxsb2MAU3QxMWxvZ2ljX2Vycm9yAFN0MTNydW50aW1lX2Vycm9yAFN0MTJsZW5ndGhfZXJyb3IAU3QxMm91dF9vZl9yYW5nZQBOMTBfX2N4eGFiaXYxMTdfX3BiYXNlX3R5cGVfaW5mb0UATjEwX19jeHhhYml2MTE5X19wb2ludGVyX3R5cGVfaW5mb0UATjEwX19jeHhhYml2MTIwX19mdW5jdGlvbl90eXBlX2luZm9FAE4xMF9fY3h4YWJpdjEyOV9fcG9pbnRlcl90b19tZW1iZXJfdHlwZV9pbmZvRQBQdXJlIHZpcnR1YWwgZnVuY3Rpb24gY2FsbGVkIQBOMTBfX2N4eGFiaXYxMjNfX2Z1bmRhbWVudGFsX3R5cGVfaW5mb0UAdgBEbgBiAGMAaABhAHMAdABpAGoAbABtAGYAZABOMTBfX2N4eGFiaXYxMjFfX3ZtaV9jbGFzc190eXBlX2luZm9FAF9fY3hhX2d1YXJkX2FjcXVpcmUgZGV0ZWN0ZWQgcmVjdXJzaXZlIGluaXRpYWxpemF0aW9uAHN0ZDo6YmFkX2Z1bmN0aW9uX2NhbGwATlN0M19fMjE3YmFkX2Z1bmN0aW9uX2NhbGxFAE5TdDNfXzIxNF9fc2hhcmVkX2NvdW50RQBOU3QzX18yMTlfX3NoYXJlZF93ZWFrX2NvdW50RQBtdXRleCBsb2NrIGZhaWxlZABiYXNpY19zdHJpbmcAdW5zcGVjaWZpZWQgZ2VuZXJpY19jYXRlZ29yeSBlcnJvcgBVbmtub3duIGVycm9yICVkAGdlbmVyaWMATlN0M19fMjI0X19nZW5lcmljX2Vycm9yX2NhdGVnb3J5RQBOU3QzX18yMTJfX2RvX21lc3NhZ2VFAE5TdDNfXzIxNGVycm9yX2NhdGVnb3J5RQB1bnNwZWNpZmllZCBzeXN0ZW1fY2F0ZWdvcnkgZXJyb3IAc3lzdGVtAE5TdDNfXzIyM19fc3lzdGVtX2Vycm9yX2NhdGVnb3J5RQBOU3QzX18yMTJzeXN0ZW1fZXJyb3JFADogAHZlY3Rvcg==';var tempDoublePtr=22368;function demangle(func){return func;}function demangleAll(text){var regex=/\b__Z[\w\d_]+/g;return text.replace(regex,function(x){var y=demangle(x);return x===y?x:y+' ['+x+']';});}function jsStackTrace(){var err=new Error();if(!err.stack){try{throw new Error();}catch(e){err=e;}if(!err.stack){return'(no stack trace available)';}}return err.stack.toString();}function ___cxa_allocate_exception(size){return _malloc(size);}var ___exception_infos={};var ___exception_caught=[];function ___exception_addRef(ptr){if(!ptr)return;var info=___exception_infos[ptr];info.refcount++;}function ___exception_deAdjust(adjusted){if(!adjusted||___exception_infos[adjusted])return adjusted;for(var key in ___exception_infos){var ptr=+key;var adj=___exception_infos[ptr].adjusted;var len=adj.length;for(var i=0;i<len;i++){if(adj[i]===adjusted){return ptr;}}}return adjusted;}function ___cxa_begin_catch(ptr){var info=___exception_infos[ptr];if(info&&!info.caught){info.caught=true;__ZSt18uncaught_exceptionv.uncaught_exceptions--;}if(info)info.rethrown=false;___exception_caught.push(ptr);___exception_addRef(___exception_deAdjust(ptr));return ptr;}var ___exception_last=0;function ___cxa_throw(ptr,type,destructor){___exception_infos[ptr]={ptr:ptr,adjusted:[ptr],type:type,destructor:destructor,refcount:0,caught:false,rethrown:false};___exception_last=ptr;if(!('uncaught_exception'in __ZSt18uncaught_exceptionv)){__ZSt18uncaught_exceptionv.uncaught_exceptions=1;}else{__ZSt18uncaught_exceptionv.uncaught_exceptions++;}throw ptr;}function ___cxa_uncaught_exceptions(){return __ZSt18uncaught_exceptionv.uncaught_exceptions;}function ___gxx_personality_v0(){}function getShiftFromSize(size){switch(size){case 1:return 0;case 2:return 1;case 4:return 2;case 8:return 3;default:throw new TypeError('Unknown type size: '+size);}}function embind_init_charCodes(){var codes=new Array(256);for(var i=0;i<256;++i){codes[i]=String.fromCharCode(i);}embind_charCodes=codes;}var embind_charCodes=undefined;function readLatin1String(ptr){var ret='';var c=ptr;while(HEAPU8[c]){ret+=embind_charCodes[HEAPU8[c++]];}return ret;}var awaitingDependencies={};var registeredTypes={};var typeDependencies={};var char_0=48;var char_9=57;function makeLegalFunctionName(name){if(undefined===name){return'_unknown';}name=name.replace(/[^a-zA-Z0-9_]/g,'$');var f=name.charCodeAt(0);if(f>=char_0&&f<=char_9){return'_'+name;}else{return name;}}function createNamedFunction(name,body){name=makeLegalFunctionName(name);return new Function('body','return function '+name+'() {\n'+'    "use strict";'+'    return body.apply(this, arguments);\n'+'};\n')(body);}function extendError(baseErrorType,errorName){var errorClass=createNamedFunction(errorName,function(message){this.name=errorName;this.message=message;var stack=new Error(message).stack;if(stack!==undefined){this.stack=this.toString()+'\n'+stack.replace(/^Error(:[^\n]*)?\n/,'');}});errorClass.prototype=Object.create(baseErrorType.prototype);errorClass.prototype.constructor=errorClass;errorClass.prototype.toString=function(){if(this.message===undefined){return this.name;}else{return this.name+': '+this.message;}};return errorClass;}var BindingError=undefined;function throwBindingError(message){throw new BindingError(message);}var InternalError=undefined;function throwInternalError(message){throw new InternalError(message);}function whenDependentTypesAreResolved(myTypes,dependentTypes,getTypeConverters){myTypes.forEach(function(type){typeDependencies[type]=dependentTypes;});function onComplete(typeConverters){var myTypeConverters=getTypeConverters(typeConverters);if(myTypeConverters.length!==myTypes.length){throwInternalError('Mismatched type converter count');}for(var i=0;i<myTypes.length;++i){registerType(myTypes[i],myTypeConverters[i]);}}var typeConverters=new Array(dependentTypes.length);var unregisteredTypes=[];var registered=0;dependentTypes.forEach(function(dt,i){if(registeredTypes.hasOwnProperty(dt)){typeConverters[i]=registeredTypes[dt];}else{unregisteredTypes.push(dt);if(!awaitingDependencies.hasOwnProperty(dt)){awaitingDependencies[dt]=[];}awaitingDependencies[dt].push(function(){typeConverters[i]=registeredTypes[dt];++registered;if(registered===unregisteredTypes.length){onComplete(typeConverters);}});}});if(0===unregisteredTypes.length){onComplete(typeConverters);}}function registerType(rawType,registeredInstance,options){options=options||{};if(!('argPackAdvance'in registeredInstance)){throw new TypeError('registerType registeredInstance requires argPackAdvance');}var name=registeredInstance.name;if(!rawType){throwBindingError('type "'+name+'" must have a positive integer typeid pointer');}if(registeredTypes.hasOwnProperty(rawType)){if(options.ignoreDuplicateRegistrations){return;}else{throwBindingError("Cannot register type '"+name+"' twice");}}registeredTypes[rawType]=registeredInstance;delete typeDependencies[rawType];if(awaitingDependencies.hasOwnProperty(rawType)){var callbacks=awaitingDependencies[rawType];delete awaitingDependencies[rawType];callbacks.forEach(function(cb){cb();});}}function __embind_register_bool(rawType,name,size,trueValue,falseValue){var shift=getShiftFromSize(size);name=readLatin1String(name);registerType(rawType,{name:name,fromWireType:function(wt){return!!wt;},toWireType:function(destructors,o){return o?trueValue:falseValue;},argPackAdvance:8,readValueFromPointer:function(pointer){var heap;if(size===1){heap=HEAP8;}else if(size===2){heap=HEAP16;}else if(size===4){heap=HEAP32;}else{throw new TypeError('Unknown boolean type size: '+name);}return this['fromWireType'](heap[pointer>>shift]);},destructorFunction:null});}function ClassHandle_isAliasOf(other){if(!(this instanceof ClassHandle)){return false;}if(!(other instanceof ClassHandle)){return false;}var leftClass=this.$$.ptrType.registeredClass;var left=this.$$.ptr;var rightClass=other.$$.ptrType.registeredClass;var right=other.$$.ptr;while(leftClass.baseClass){left=leftClass.upcast(left);leftClass=leftClass.baseClass;}while(rightClass.baseClass){right=rightClass.upcast(right);rightClass=rightClass.baseClass;}return leftClass===rightClass&&left===right;}function shallowCopyInternalPointer(o){return{count:o.count,deleteScheduled:o.deleteScheduled,preservePointerOnDelete:o.preservePointerOnDelete,ptr:o.ptr,ptrType:o.ptrType,smartPtr:o.smartPtr,smartPtrType:o.smartPtrType};}function throwInstanceAlreadyDeleted(obj){function getInstanceTypeName(handle){return handle.$$.ptrType.registeredClass.name;}throwBindingError(getInstanceTypeName(obj)+' instance already deleted');}var finalizationGroup=false;function detachFinalizer(handle){}function runDestructor($$){if($$.smartPtr){$$.smartPtrType.rawDestructor($$.smartPtr);}else{$$.ptrType.registeredClass.rawDestructor($$.ptr);}}function releaseClassHandle($$){$$.count.value-=1;var toDelete=0===$$.count.value;if(toDelete){runDestructor($$);}}function attachFinalizer(handle){if('undefined'===typeof FinalizationGroup){attachFinalizer=function(handle){return handle;};return handle;}finalizationGroup=new FinalizationGroup(function(iter){for(var result=iter.next();!result.done;result=iter.next()){var $$=result.value;if(!$$.ptr){console.warn('object already deleted: '+$$.ptr);}else{releaseClassHandle($$);}}});attachFinalizer=function(handle){finalizationGroup.register(handle,handle.$$,handle.$$);return handle;};detachFinalizer=function(handle){finalizationGroup.unregister(handle.$$);};return attachFinalizer(handle);}function ClassHandle_clone(){if(!this.$$.ptr){throwInstanceAlreadyDeleted(this);}if(this.$$.preservePointerOnDelete){this.$$.count.value+=1;return this;}else{var clone=attachFinalizer(Object.create(Object.getPrototypeOf(this),{$$:{value:shallowCopyInternalPointer(this.$$)}}));clone.$$.count.value+=1;clone.$$.deleteScheduled=false;return clone;}}function ClassHandle_delete(){if(!this.$$.ptr){throwInstanceAlreadyDeleted(this);}if(this.$$.deleteScheduled&&!this.$$.preservePointerOnDelete){throwBindingError('Object already scheduled for deletion');}detachFinalizer(this);releaseClassHandle(this.$$);if(!this.$$.preservePointerOnDelete){this.$$.smartPtr=undefined;this.$$.ptr=undefined;}}function ClassHandle_isDeleted(){return!this.$$.ptr;}var delayFunction=undefined;var deletionQueue=[];function flushPendingDeletes(){while(deletionQueue.length){var obj=deletionQueue.pop();obj.$$.deleteScheduled=false;obj['delete']();}}function ClassHandle_deleteLater(){if(!this.$$.ptr){throwInstanceAlreadyDeleted(this);}if(this.$$.deleteScheduled&&!this.$$.preservePointerOnDelete){throwBindingError('Object already scheduled for deletion');}deletionQueue.push(this);if(deletionQueue.length===1&&delayFunction){delayFunction(flushPendingDeletes);}this.$$.deleteScheduled=true;return this;}function init_ClassHandle(){ClassHandle.prototype['isAliasOf']=ClassHandle_isAliasOf;ClassHandle.prototype['clone']=ClassHandle_clone;ClassHandle.prototype['delete']=ClassHandle_delete;ClassHandle.prototype['isDeleted']=ClassHandle_isDeleted;ClassHandle.prototype['deleteLater']=ClassHandle_deleteLater;}function ClassHandle(){}var registeredPointers={};function ensureOverloadTable(proto,methodName,humanName){if(undefined===proto[methodName].overloadTable){var prevFunc=proto[methodName];proto[methodName]=function(){if(!proto[methodName].overloadTable.hasOwnProperty(arguments.length)){throwBindingError("Function '"+humanName+"' called with an invalid number of arguments ("+arguments.length+') - expects one of ('+proto[methodName].overloadTable+')!');}return proto[methodName].overloadTable[arguments.length].apply(this,arguments);};proto[methodName].overloadTable=[];proto[methodName].overloadTable[prevFunc.argCount]=prevFunc;}}function exposePublicSymbol(name,value,numArguments){if(Module.hasOwnProperty(name)){if(undefined===numArguments||undefined!==Module[name].overloadTable&&undefined!==Module[name].overloadTable[numArguments]){throwBindingError("Cannot register public name '"+name+"' twice");}ensureOverloadTable(Module,name,name);if(Module.hasOwnProperty(numArguments)){throwBindingError('Cannot register multiple overloads of a function with the same number of arguments ('+numArguments+')!');}Module[name].overloadTable[numArguments]=value;}else{Module[name]=value;if(undefined!==numArguments){Module[name].numArguments=numArguments;}}}function RegisteredClass(name,constructor,instancePrototype,rawDestructor,baseClass,getActualType,upcast,downcast){this.name=name;this.constructor=constructor;this.instancePrototype=instancePrototype;this.rawDestructor=rawDestructor;this.baseClass=baseClass;this.getActualType=getActualType;this.upcast=upcast;this.downcast=downcast;this.pureVirtualFunctions=[];}function upcastPointer(ptr,ptrClass,desiredClass){while(ptrClass!==desiredClass){if(!ptrClass.upcast){throwBindingError('Expected null or instance of '+desiredClass.name+', got an instance of '+ptrClass.name);}ptr=ptrClass.upcast(ptr);ptrClass=ptrClass.baseClass;}return ptr;}function constNoSmartPtrRawPointerToWireType(destructors,handle){if(handle===null){if(this.isReference){throwBindingError('null is not a valid '+this.name);}return 0;}if(!handle.$$){throwBindingError('Cannot pass "'+_embind_repr(handle)+'" as a '+this.name);}if(!handle.$$.ptr){throwBindingError('Cannot pass deleted object as a pointer of type '+this.name);}var handleClass=handle.$$.ptrType.registeredClass;var ptr=upcastPointer(handle.$$.ptr,handleClass,this.registeredClass);return ptr;}function genericPointerToWireType(destructors,handle){var ptr;if(handle===null){if(this.isReference){throwBindingError('null is not a valid '+this.name);}if(this.isSmartPointer){ptr=this.rawConstructor();if(destructors!==null){destructors.push(this.rawDestructor,ptr);}return ptr;}else{return 0;}}if(!handle.$$){throwBindingError('Cannot pass "'+_embind_repr(handle)+'" as a '+this.name);}if(!handle.$$.ptr){throwBindingError('Cannot pass deleted object as a pointer of type '+this.name);}if(!this.isConst&&handle.$$.ptrType.isConst){throwBindingError('Cannot convert argument of type '+(handle.$$.smartPtrType?handle.$$.smartPtrType.name:handle.$$.ptrType.name)+' to parameter type '+this.name);}var handleClass=handle.$$.ptrType.registeredClass;ptr=upcastPointer(handle.$$.ptr,handleClass,this.registeredClass);if(this.isSmartPointer){if(undefined===handle.$$.smartPtr){throwBindingError('Passing raw pointer to smart pointer is illegal');}switch(this.sharingPolicy){case 0:if(handle.$$.smartPtrType===this){ptr=handle.$$.smartPtr;}else{throwBindingError('Cannot convert argument of type '+(handle.$$.smartPtrType?handle.$$.smartPtrType.name:handle.$$.ptrType.name)+' to parameter type '+this.name);}break;case 1:ptr=handle.$$.smartPtr;break;case 2:if(handle.$$.smartPtrType===this){ptr=handle.$$.smartPtr;}else{var clonedHandle=handle['clone']();ptr=this.rawShare(ptr,__emval_register(function(){clonedHandle['delete']();}));if(destructors!==null){destructors.push(this.rawDestructor,ptr);}}break;default:throwBindingError('Unsupporting sharing policy');}}return ptr;}function nonConstNoSmartPtrRawPointerToWireType(destructors,handle){if(handle===null){if(this.isReference){throwBindingError('null is not a valid '+this.name);}return 0;}if(!handle.$$){throwBindingError('Cannot pass "'+_embind_repr(handle)+'" as a '+this.name);}if(!handle.$$.ptr){throwBindingError('Cannot pass deleted object as a pointer of type '+this.name);}if(handle.$$.ptrType.isConst){throwBindingError('Cannot convert argument of type '+handle.$$.ptrType.name+' to parameter type '+this.name);}var handleClass=handle.$$.ptrType.registeredClass;var ptr=upcastPointer(handle.$$.ptr,handleClass,this.registeredClass);return ptr;}function simpleReadValueFromPointer(pointer){return this['fromWireType'](HEAPU32[pointer>>2]);}function RegisteredPointer_getPointee(ptr){if(this.rawGetPointee){ptr=this.rawGetPointee(ptr);}return ptr;}function RegisteredPointer_destructor(ptr){if(this.rawDestructor){this.rawDestructor(ptr);}}function RegisteredPointer_deleteObject(handle){if(handle!==null){handle['delete']();}}function downcastPointer(ptr,ptrClass,desiredClass){if(ptrClass===desiredClass){return ptr;}if(undefined===desiredClass.baseClass){return null;}var rv=downcastPointer(ptr,ptrClass,desiredClass.baseClass);if(rv===null){return null;}return desiredClass.downcast(rv);}function getInheritedInstanceCount(){return Object.keys(registeredInstances).length;}function getLiveInheritedInstances(){var rv=[];for(var k in registeredInstances){if(registeredInstances.hasOwnProperty(k)){rv.push(registeredInstances[k]);}}return rv;}function setDelayFunction(fn){delayFunction=fn;if(deletionQueue.length&&delayFunction){delayFunction(flushPendingDeletes);}}function init_embind(){Module['getInheritedInstanceCount']=getInheritedInstanceCount;Module['getLiveInheritedInstances']=getLiveInheritedInstances;Module['flushPendingDeletes']=flushPendingDeletes;Module['setDelayFunction']=setDelayFunction;}var registeredInstances={};function getBasestPointer(class_,ptr){if(ptr===undefined){throwBindingError('ptr should not be undefined');}while(class_.baseClass){ptr=class_.upcast(ptr);class_=class_.baseClass;}return ptr;}function getInheritedInstance(class_,ptr){ptr=getBasestPointer(class_,ptr);return registeredInstances[ptr];}function makeClassHandle(prototype,record){if(!record.ptrType||!record.ptr){throwInternalError('makeClassHandle requires ptr and ptrType');}var hasSmartPtrType=!!record.smartPtrType;var hasSmartPtr=!!record.smartPtr;if(hasSmartPtrType!==hasSmartPtr){throwInternalError('Both smartPtrType and smartPtr must be specified');}record.count={value:1};return attachFinalizer(Object.create(prototype,{$$:{value:record}}));}function RegisteredPointer_fromWireType(ptr){var rawPointer=this.getPointee(ptr);if(!rawPointer){this.destructor(ptr);return null;}var registeredInstance=getInheritedInstance(this.registeredClass,rawPointer);if(undefined!==registeredInstance){if(0===registeredInstance.$$.count.value){registeredInstance.$$.ptr=rawPointer;registeredInstance.$$.smartPtr=ptr;return registeredInstance['clone']();}else{var rv=registeredInstance['clone']();this.destructor(ptr);return rv;}}function makeDefaultHandle(){if(this.isSmartPointer){return makeClassHandle(this.registeredClass.instancePrototype,{ptrType:this.pointeeType,ptr:rawPointer,smartPtrType:this,smartPtr:ptr});}else{return makeClassHandle(this.registeredClass.instancePrototype,{ptrType:this,ptr:ptr});}}var actualType=this.registeredClass.getActualType(rawPointer);var registeredPointerRecord=registeredPointers[actualType];if(!registeredPointerRecord){return makeDefaultHandle.call(this);}var toType;if(this.isConst){toType=registeredPointerRecord.constPointerType;}else{toType=registeredPointerRecord.pointerType;}var dp=downcastPointer(rawPointer,this.registeredClass,toType.registeredClass);if(dp===null){return makeDefaultHandle.call(this);}if(this.isSmartPointer){return makeClassHandle(toType.registeredClass.instancePrototype,{ptrType:toType,ptr:dp,smartPtrType:this,smartPtr:ptr});}else{return makeClassHandle(toType.registeredClass.instancePrototype,{ptrType:toType,ptr:dp});}}function init_RegisteredPointer(){RegisteredPointer.prototype.getPointee=RegisteredPointer_getPointee;RegisteredPointer.prototype.destructor=RegisteredPointer_destructor;RegisteredPointer.prototype['argPackAdvance']=8;RegisteredPointer.prototype['readValueFromPointer']=simpleReadValueFromPointer;RegisteredPointer.prototype['deleteObject']=RegisteredPointer_deleteObject;RegisteredPointer.prototype['fromWireType']=RegisteredPointer_fromWireType;}function RegisteredPointer(name,registeredClass,isReference,isConst,isSmartPointer,pointeeType,sharingPolicy,rawGetPointee,rawConstructor,rawShare,rawDestructor){this.name=name;this.registeredClass=registeredClass;this.isReference=isReference;this.isConst=isConst;this.isSmartPointer=isSmartPointer;this.pointeeType=pointeeType;this.sharingPolicy=sharingPolicy;this.rawGetPointee=rawGetPointee;this.rawConstructor=rawConstructor;this.rawShare=rawShare;this.rawDestructor=rawDestructor;if(!isSmartPointer&&registeredClass.baseClass===undefined){if(isConst){this['toWireType']=constNoSmartPtrRawPointerToWireType;this.destructorFunction=null;}else{this['toWireType']=nonConstNoSmartPtrRawPointerToWireType;this.destructorFunction=null;}}else{this['toWireType']=genericPointerToWireType;}}function replacePublicSymbol(name,value,numArguments){if(!Module.hasOwnProperty(name)){throwInternalError('Replacing nonexistant public symbol');}if(undefined!==Module[name].overloadTable&&undefined!==numArguments){Module[name].overloadTable[numArguments]=value;}else{Module[name]=value;Module[name].argCount=numArguments;}}function embind__requireFunction(signature,rawFunction){signature=readLatin1String(signature);function makeDynCaller(dynCall){var args=[];for(var i=1;i<signature.length;++i){args.push('a'+i);}var name='dynCall_'+signature+'_'+rawFunction;var body='return function '+name+'('+args.join(', ')+') {\n';body+='    return dynCall(rawFunction'+(args.length?', ':'')+args.join(', ')+');\n';body+='};\n';return new Function('dynCall','rawFunction',body)(dynCall,rawFunction);}var dc=Module['dynCall_'+signature];var fp=makeDynCaller(dc);if(typeof fp!=='function'){throwBindingError('unknown function pointer with signature '+signature+': '+rawFunction);}return fp;}var UnboundTypeError=undefined;function getTypeName(type){var ptr=___getTypeName(type);var rv=readLatin1String(ptr);_free(ptr);return rv;}function throwUnboundTypeError(message,types){var unboundTypes=[];var seen={};function visit(type){if(seen[type]){return;}if(registeredTypes[type]){return;}if(typeDependencies[type]){typeDependencies[type].forEach(visit);return;}unboundTypes.push(type);seen[type]=true;}types.forEach(visit);throw new UnboundTypeError(message+': '+unboundTypes.map(getTypeName).join([', ']));}function __embind_register_class(rawType,rawPointerType,rawConstPointerType,baseClassRawType,getActualTypeSignature,getActualType,upcastSignature,upcast,downcastSignature,downcast,name,destructorSignature,rawDestructor){name=readLatin1String(name);getActualType=embind__requireFunction(getActualTypeSignature,getActualType);if(upcast){upcast=embind__requireFunction(upcastSignature,upcast);}if(downcast){downcast=embind__requireFunction(downcastSignature,downcast);}rawDestructor=embind__requireFunction(destructorSignature,rawDestructor);var legalFunctionName=makeLegalFunctionName(name);exposePublicSymbol(legalFunctionName,function(){throwUnboundTypeError('Cannot construct '+name+' due to unbound types',[baseClassRawType]);});whenDependentTypesAreResolved([rawType,rawPointerType,rawConstPointerType],baseClassRawType?[baseClassRawType]:[],function(base){base=base[0];var baseClass;var basePrototype;if(baseClassRawType){baseClass=base.registeredClass;basePrototype=baseClass.instancePrototype;}else{basePrototype=ClassHandle.prototype;}var constructor=createNamedFunction(legalFunctionName,function(){if(Object.getPrototypeOf(this)!==instancePrototype){throw new BindingError("Use 'new' to construct "+name);}if(undefined===registeredClass.constructor_body){throw new BindingError(name+' has no accessible constructor');}var body=registeredClass.constructor_body[arguments.length];if(undefined===body){throw new BindingError('Tried to invoke ctor of '+name+' with invalid number of parameters ('+arguments.length+') - expected ('+Object.keys(registeredClass.constructor_body).toString()+') parameters instead!');}return body.apply(this,arguments);});var instancePrototype=Object.create(basePrototype,{constructor:{value:constructor}});constructor.prototype=instancePrototype;var registeredClass=new RegisteredClass(name,constructor,instancePrototype,rawDestructor,baseClass,getActualType,upcast,downcast);var referenceConverter=new RegisteredPointer(name,registeredClass,true,false,false);var pointerConverter=new RegisteredPointer(name+'*',registeredClass,false,false,false);var constPointerConverter=new RegisteredPointer(name+' const*',registeredClass,false,true,false);registeredPointers[rawType]={pointerType:pointerConverter,constPointerType:constPointerConverter};replacePublicSymbol(legalFunctionName,constructor);return[referenceConverter,pointerConverter,constPointerConverter];});}function heap32VectorToArray(count,firstElement){var array=[];for(var i=0;i<count;i++){array.push(HEAP32[(firstElement>>2)+i]);}return array;}function runDestructors(destructors){while(destructors.length){var ptr=destructors.pop();var del=destructors.pop();del(ptr);}}function __embind_register_class_constructor(rawClassType,argCount,rawArgTypesAddr,invokerSignature,invoker,rawConstructor){assert(argCount>0);var rawArgTypes=heap32VectorToArray(argCount,rawArgTypesAddr);invoker=embind__requireFunction(invokerSignature,invoker);var args=[rawConstructor];var destructors=[];whenDependentTypesAreResolved([],[rawClassType],function(classType){classType=classType[0];var humanName='constructor '+classType.name;if(undefined===classType.registeredClass.constructor_body){classType.registeredClass.constructor_body=[];}if(undefined!==classType.registeredClass.constructor_body[argCount-1]){throw new BindingError('Cannot register multiple constructors with identical number of parameters ('+(argCount-1)+") for class '"+classType.name+"'! Overload resolution is currently only performed using the parameter count, not actual type info!");}classType.registeredClass.constructor_body[argCount-1]=function unboundTypeHandler(){throwUnboundTypeError('Cannot construct '+classType.name+' due to unbound types',rawArgTypes);};whenDependentTypesAreResolved([],rawArgTypes,function(argTypes){classType.registeredClass.constructor_body[argCount-1]=function constructor_body(){if(arguments.length!==argCount-1){throwBindingError(humanName+' called with '+arguments.length+' arguments, expected '+(argCount-1));}destructors.length=0;args.length=argCount;for(var i=1;i<argCount;++i){args[i]=argTypes[i]['toWireType'](destructors,arguments[i-1]);}var ptr=invoker.apply(null,args);runDestructors(destructors);return argTypes[0]['fromWireType'](ptr);};return[];});return[];});}function new_(constructor,argumentList){if(!(constructor instanceof Function)){throw new TypeError('new_ called with constructor type '+typeof constructor+' which is not a function');}var dummy=createNamedFunction(constructor.name||'unknownFunctionName',function(){});dummy.prototype=constructor.prototype;var obj=new dummy();var r=constructor.apply(obj,argumentList);return r instanceof Object?r:obj;}function craftInvokerFunction(humanName,argTypes,classType,cppInvokerFunc,cppTargetFunc){var argCount=argTypes.length;if(argCount<2){throwBindingError("argTypes array size mismatch! Must at least get return value and 'this' types!");}var isClassMethodFunc=argTypes[1]!==null&&classType!==null;var needsDestructorStack=false;for(var i=1;i<argTypes.length;++i){if(argTypes[i]!==null&&argTypes[i].destructorFunction===undefined){needsDestructorStack=true;break;}}var returns=argTypes[0].name!=='void';var argsList='';var argsListWired='';for(var i=0;i<argCount-2;++i){argsList+=(i!==0?', ':'')+'arg'+i;argsListWired+=(i!==0?', ':'')+'arg'+i+'Wired';}var invokerFnBody='return function '+makeLegalFunctionName(humanName)+'('+argsList+') {\n'+'if (arguments.length !== '+(argCount-2)+') {\n'+"throwBindingError('function "+humanName+" called with ' + arguments.length + ' arguments, expected "+(argCount-2)+" args!');\n"+'}\n';if(needsDestructorStack){invokerFnBody+='var destructors = [];\n';}var dtorStack=needsDestructorStack?'destructors':'null';var args1=['throwBindingError','invoker','fn','runDestructors','retType','classParam'];var args2=[throwBindingError,cppInvokerFunc,cppTargetFunc,runDestructors,argTypes[0],argTypes[1]];if(isClassMethodFunc){invokerFnBody+='var thisWired = classParam.toWireType('+dtorStack+', this);\n';}for(var i=0;i<argCount-2;++i){invokerFnBody+='var arg'+i+'Wired = argType'+i+'.toWireType('+dtorStack+', arg'+i+'); // '+argTypes[i+2].name+'\n';args1.push('argType'+i);args2.push(argTypes[i+2]);}if(isClassMethodFunc){argsListWired='thisWired'+(argsListWired.length>0?', ':'')+argsListWired;}invokerFnBody+=(returns?'var rv = ':'')+'invoker(fn'+(argsListWired.length>0?', ':'')+argsListWired+');\n';if(needsDestructorStack){invokerFnBody+='runDestructors(destructors);\n';}else{for(var i=isClassMethodFunc?1:2;i<argTypes.length;++i){var paramName=i===1?'thisWired':'arg'+(i-2)+'Wired';if(argTypes[i].destructorFunction!==null){invokerFnBody+=paramName+'_dtor('+paramName+'); // '+argTypes[i].name+'\n';args1.push(paramName+'_dtor');args2.push(argTypes[i].destructorFunction);}}}if(returns){invokerFnBody+='var ret = retType.fromWireType(rv);\n'+'return ret;\n';}else{}invokerFnBody+='}\n';args1.push(invokerFnBody);var invokerFunction=new_(Function,args1).apply(null,args2);return invokerFunction;}function __embind_register_class_function(rawClassType,methodName,argCount,rawArgTypesAddr,invokerSignature,rawInvoker,context,isPureVirtual){var rawArgTypes=heap32VectorToArray(argCount,rawArgTypesAddr);methodName=readLatin1String(methodName);rawInvoker=embind__requireFunction(invokerSignature,rawInvoker);whenDependentTypesAreResolved([],[rawClassType],function(classType){classType=classType[0];var humanName=classType.name+'.'+methodName;if(isPureVirtual){classType.registeredClass.pureVirtualFunctions.push(methodName);}function unboundTypesHandler(){throwUnboundTypeError('Cannot call '+humanName+' due to unbound types',rawArgTypes);}var proto=classType.registeredClass.instancePrototype;var method=proto[methodName];if(undefined===method||undefined===method.overloadTable&&method.className!==classType.name&&method.argCount===argCount-2){unboundTypesHandler.argCount=argCount-2;unboundTypesHandler.className=classType.name;proto[methodName]=unboundTypesHandler;}else{ensureOverloadTable(proto,methodName,humanName);proto[methodName].overloadTable[argCount-2]=unboundTypesHandler;}whenDependentTypesAreResolved([],rawArgTypes,function(argTypes){var memberFunction=craftInvokerFunction(humanName,argTypes,classType,rawInvoker,context);if(undefined===proto[methodName].overloadTable){memberFunction.argCount=argCount-2;proto[methodName]=memberFunction;}else{proto[methodName].overloadTable[argCount-2]=memberFunction;}return[];});return[];});}var emval_free_list=[];var emval_handle_array=[{},{value:undefined},{value:null},{value:true},{value:false}];function __emval_decref(handle){if(handle>4&&0===--emval_handle_array[handle].refcount){emval_handle_array[handle]=undefined;emval_free_list.push(handle);}}function count_emval_handles(){var count=0;for(var i=5;i<emval_handle_array.length;++i){if(emval_handle_array[i]!==undefined){++count;}}return count;}function get_first_emval(){for(var i=5;i<emval_handle_array.length;++i){if(emval_handle_array[i]!==undefined){return emval_handle_array[i];}}return null;}function init_emval(){Module['count_emval_handles']=count_emval_handles;Module['get_first_emval']=get_first_emval;}function __emval_register(value){switch(value){case undefined:{return 1;}case null:{return 2;}case true:{return 3;}case false:{return 4;}default:{var handle=emval_free_list.length?emval_free_list.pop():emval_handle_array.length;emval_handle_array[handle]={refcount:1,value:value};return handle;}}}function __embind_register_emval(rawType,name){name=readLatin1String(name);registerType(rawType,{name:name,fromWireType:function(handle){var rv=emval_handle_array[handle].value;__emval_decref(handle);return rv;},toWireType:function(destructors,value){return __emval_register(value);},argPackAdvance:8,readValueFromPointer:simpleReadValueFromPointer,destructorFunction:null});}function _embind_repr(v){if(v===null){return'null';}var t=typeof v;if(t==='object'||t==='array'||t==='function'){return v.toString();}else{return''+v;}}function floatReadValueFromPointer(name,shift){switch(shift){case 2:return function(pointer){return this['fromWireType'](HEAPF32[pointer>>2]);};case 3:return function(pointer){return this['fromWireType'](HEAPF64[pointer>>3]);};default:throw new TypeError('Unknown float type: '+name);}}function __embind_register_float(rawType,name,size){var shift=getShiftFromSize(size);name=readLatin1String(name);registerType(rawType,{name:name,fromWireType:function(value){return value;},toWireType:function(destructors,value){if(typeof value!=='number'&&typeof value!=='boolean'){throw new TypeError('Cannot convert "'+_embind_repr(value)+'" to '+this.name);}return value;},argPackAdvance:8,readValueFromPointer:floatReadValueFromPointer(name,shift),destructorFunction:null});}function integerReadValueFromPointer(name,shift,signed){switch(shift){case 0:return signed?function readS8FromPointer(pointer){return HEAP8[pointer];}:function readU8FromPointer(pointer){return HEAPU8[pointer];};case 1:return signed?function readS16FromPointer(pointer){return HEAP16[pointer>>1];}:function readU16FromPointer(pointer){return HEAPU16[pointer>>1];};case 2:return signed?function readS32FromPointer(pointer){return HEAP32[pointer>>2];}:function readU32FromPointer(pointer){return HEAPU32[pointer>>2];};default:throw new TypeError('Unknown integer type: '+name);}}function __embind_register_integer(primitiveType,name,size,minRange,maxRange){name=readLatin1String(name);if(maxRange===-1){maxRange=4294967295;}var shift=getShiftFromSize(size);var fromWireType=function(value){return value;};if(minRange===0){var bitshift=32-8*size;fromWireType=function(value){return value<<bitshift>>>bitshift;};}var isUnsignedType=name.indexOf('unsigned')!=-1;registerType(primitiveType,{name:name,fromWireType:fromWireType,toWireType:function(destructors,value){if(typeof value!=='number'&&typeof value!=='boolean'){throw new TypeError('Cannot convert "'+_embind_repr(value)+'" to '+this.name);}if(value<minRange||value>maxRange){throw new TypeError('Passing a number "'+_embind_repr(value)+'" from JS side to C/C++ side to an argument of type "'+name+'", which is outside the valid range ['+minRange+', '+maxRange+']!');}return isUnsignedType?value>>>0:value|0;},argPackAdvance:8,readValueFromPointer:integerReadValueFromPointer(name,shift,minRange!==0),destructorFunction:null});}function __embind_register_memory_view(rawType,dataTypeIndex,name){var typeMapping=[Int8Array,Uint8Array,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array];var TA=typeMapping[dataTypeIndex];function decodeMemoryView(handle){handle=handle>>2;var heap=HEAPU32;var size=heap[handle];var data=heap[handle+1];return new TA(buffer,data,size);}name=readLatin1String(name);registerType(rawType,{name:name,fromWireType:decodeMemoryView,argPackAdvance:8,readValueFromPointer:decodeMemoryView},{ignoreDuplicateRegistrations:true});}function __embind_register_std_string(rawType,name){name=readLatin1String(name);var stdStringIsUTF8=name==='std::string';registerType(rawType,{name:name,fromWireType:function(value){var length=HEAPU32[value>>2];var str;if(stdStringIsUTF8){var decodeStartPtr=value+4;for(var i=0;i<=length;++i){var currentBytePtr=value+4+i;if(HEAPU8[currentBytePtr]==0||i==length){var maxRead=currentBytePtr-decodeStartPtr;var stringSegment=UTF8ToString(decodeStartPtr,maxRead);if(str===undefined){str=stringSegment;}else{str+=String.fromCharCode(0);str+=stringSegment;}decodeStartPtr=currentBytePtr+1;}}}else{var a=new Array(length);for(var i=0;i<length;++i){a[i]=String.fromCharCode(HEAPU8[value+4+i]);}str=a.join('');}_free(value);return str;},toWireType:function(destructors,value){if(value instanceof ArrayBuffer){value=new Uint8Array(value);}var getLength;var valueIsOfTypeString=typeof value==='string';if(!(valueIsOfTypeString||value instanceof Uint8Array||value instanceof Uint8ClampedArray||value instanceof Int8Array)){throwBindingError('Cannot pass non-string to std::string');}if(stdStringIsUTF8&&valueIsOfTypeString){getLength=function(){return lengthBytesUTF8(value);};}else{getLength=function(){return value.length;};}var length=getLength();var ptr=_malloc(4+length+1);HEAPU32[ptr>>2]=length;if(stdStringIsUTF8&&valueIsOfTypeString){stringToUTF8(value,ptr+4,length+1);}else{if(valueIsOfTypeString){for(var i=0;i<length;++i){var charCode=value.charCodeAt(i);if(charCode>255){_free(ptr);throwBindingError('String has UTF-16 code units that do not fit in 8 bits');}HEAPU8[ptr+4+i]=charCode;}}else{for(var i=0;i<length;++i){HEAPU8[ptr+4+i]=value[i];}}}if(destructors!==null){destructors.push(_free,ptr);}return ptr;},argPackAdvance:8,readValueFromPointer:simpleReadValueFromPointer,destructorFunction:function(ptr){_free(ptr);}});}function __embind_register_std_wstring(rawType,charSize,name){name=readLatin1String(name);var decodeString,encodeString,getHeap,lengthBytesUTF,shift;if(charSize===2){decodeString=UTF16ToString;encodeString=stringToUTF16;lengthBytesUTF=lengthBytesUTF16;getHeap=function(){return HEAPU16;};shift=1;}else if(charSize===4){decodeString=UTF32ToString;encodeString=stringToUTF32;lengthBytesUTF=lengthBytesUTF32;getHeap=function(){return HEAPU32;};shift=2;}registerType(rawType,{name:name,fromWireType:function(value){var length=HEAPU32[value>>2];var HEAP=getHeap();var str;var decodeStartPtr=value+4;for(var i=0;i<=length;++i){var currentBytePtr=value+4+i*charSize;if(HEAP[currentBytePtr>>shift]==0||i==length){var maxReadBytes=currentBytePtr-decodeStartPtr;var stringSegment=decodeString(decodeStartPtr,maxReadBytes);if(str===undefined){str=stringSegment;}else{str+=String.fromCharCode(0);str+=stringSegment;}decodeStartPtr=currentBytePtr+charSize;}}_free(value);return str;},toWireType:function(destructors,value){if(!(typeof value==='string')){throwBindingError('Cannot pass non-string to C++ string type '+name);}var length=lengthBytesUTF(value);var ptr=_malloc(4+length+charSize);HEAPU32[ptr>>2]=length>>shift;encodeString(value,ptr+4,length+charSize);if(destructors!==null){destructors.push(_free,ptr);}return ptr;},argPackAdvance:8,readValueFromPointer:simpleReadValueFromPointer,destructorFunction:function(ptr){_free(ptr);}});}function __embind_register_void(rawType,name){name=readLatin1String(name);registerType(rawType,{isVoid:true,name:name,argPackAdvance:0,fromWireType:function(){return undefined;},toWireType:function(destructors,o){return undefined;}});}function _abort(){abort();}function _emscripten_get_heap_size(){return HEAPU8.length;}function abortOnCannotGrowMemory(requestedSize){abort('OOM');}function _emscripten_resize_heap(requestedSize){requestedSize=requestedSize>>>0;abortOnCannotGrowMemory(requestedSize);}function _llvm_trap(){abort('trap!');}function _emscripten_memcpy_big(dest,src,num){HEAPU8.copyWithin(dest,src,src+num);}embind_init_charCodes();BindingError=Module['BindingError']=extendError(Error,'BindingError');InternalError=Module['InternalError']=extendError(Error,'InternalError');init_ClassHandle();init_RegisteredPointer();init_embind();UnboundTypeError=Module['UnboundTypeError']=extendError(Error,'UnboundTypeError');init_emval();var ASSERTIONS=false;function intArrayToString(array){var ret=[];for(var i=0;i<array.length;i++){var chr=array[i];if(chr>255){if(ASSERTIONS){assert(false,'Character code '+chr+' ('+String.fromCharCode(chr)+')  at offset '+i+' not in 0x00-0xFF.');}chr&=255;}ret.push(String.fromCharCode(chr));}return ret.join('');}var decodeBase64=typeof atob==='function'?atob:function(input){var keyStr='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';var output='';var chr1,chr2,chr3;var enc1,enc2,enc3,enc4;var i=0;input=input.replace(/[^A-Za-z0-9\+\/\=]/g,'');do{enc1=keyStr.indexOf(input.charAt(i++));enc2=keyStr.indexOf(input.charAt(i++));enc3=keyStr.indexOf(input.charAt(i++));enc4=keyStr.indexOf(input.charAt(i++));chr1=enc1<<2|enc2>>4;chr2=(enc2&15)<<4|enc3>>2;chr3=(enc3&3)<<6|enc4;output=output+String.fromCharCode(chr1);if(enc3!==64){output=output+String.fromCharCode(chr2);}if(enc4!==64){output=output+String.fromCharCode(chr3);}}while(i<input.length);return output;};function intArrayFromBase64(s){if(typeof ENVIRONMENT_IS_NODE==='boolean'&&ENVIRONMENT_IS_NODE){var buf;try{buf=Buffer.from(s,'base64');}catch(_){buf=new Buffer(s,'base64');}return new Uint8Array(buf['buffer'],buf['byteOffset'],buf['byteLength']);}try{var decoded=decodeBase64(s);var bytes=new Uint8Array(decoded.length);for(var i=0;i<decoded.length;++i){bytes[i]=decoded.charCodeAt(i);}return bytes;}catch(_){throw new Error('Converting base64 string to bytes failed.');}}function tryParseAsDataURI(filename){if(!isDataURI(filename)){return;}return intArrayFromBase64(filename.slice(dataURIPrefix.length));}var asmGlobalArg={Math:Math,Int8Array:Int8Array,Int16Array:Int16Array,Int32Array:Int32Array,Uint8Array:Uint8Array,Uint16Array:Uint16Array,Float32Array:Float32Array,Float64Array:Float64Array};var asmLibraryArg={A:_emscripten_memcpy_big,B:_emscripten_resize_heap,C:_llvm_trap,D:tempDoublePtr,a:abort,b:setTempRet0,c:getTempRet0,d:___cxa_allocate_exception,e:___cxa_begin_catch,f:___cxa_throw,g:___cxa_uncaught_exceptions,h:___exception_addRef,i:___exception_deAdjust,j:___gxx_personality_v0,k:__embind_register_bool,l:__embind_register_class,m:__embind_register_class_constructor,n:__embind_register_class_function,o:__embind_register_emval,p:__embind_register_float,q:__embind_register_integer,r:__embind_register_memory_view,s:__embind_register_std_string,t:__embind_register_std_wstring,u:__embind_register_void,v:__emval_decref,w:__emval_register,x:_abort,y:_embind_repr,z:_emscripten_get_heap_size};var asm=function(global,env,buffer){'use asm';var a=new global.Int8Array(buffer),b=new global.Int16Array(buffer),c=new global.Int32Array(buffer),d=new global.Uint8Array(buffer),e=new global.Uint16Array(buffer),f=new global.Float32Array(buffer),g=new global.Float64Array(buffer),h=env.D|0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0.0,q=global.Math.imul,r=global.Math.clz32,s=env.a,t=env.b,u=env.c,v=env.d,w=env.e,x=env.f,y=env.g,z=env.h,A=env.i,B=env.j,C=env.k,D=env.l,E=env.m,F=env.n,G=env.o,H=env.p,I=env.q,J=env.r,K=env.s,L=env.t,M=env.u,N=env.v,O=env.w,P=env.x,Q=env.y,R=env.z,S=env.A,T=env.B,U=env.C,V=22384,W=5265264,X=0.0;function ia(){em();fm();}function ja(){ka(0);return;}function ka(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0;a=V;V=V+16|0;b=a+8|0;d=a;vk();m=xk()|0;g=yk()|0;f=Ak()|0;h=Bk()|0;i=Ck()|0;j=Dk()|0;k=Jk()|0;l=Kk()|0;e=Kk()|0;D(f|0,h|0,i|0,j|0,k|0,9,l|0,m|0,e|0,g|0,6204,Lk()|0,138);Nk(1);c[d>>2]=5;c[d+4>>2]=0;c[b>>2]=c[d>>2];c[b+4>>2]=c[d+4>>2];Uk(6211,b);c[d>>2]=3;c[d+4>>2]=0;c[b>>2]=c[d>>2];c[b+4>>2]=c[d+4>>2];cl(6216,b);c[d>>2]=10;c[d+4>>2]=0;c[b>>2]=c[d>>2];c[b+4>>2]=c[d+4>>2];kl(6225,b);sl();g=ul()|0;e=vl()|0;m=xl()|0;l=yl()|0;k=zl()|0;j=Dk()|0;i=Jk()|0;h=Kk()|0;f=Kk()|0;D(m|0,l|0,k|0,j|0,i|0,11,h|0,g|0,f|0,e|0,6234,Lk()|0,139);Gl(2);c[d>>2]=6;c[d+4>>2]=0;c[b>>2]=c[d>>2];c[b+4>>2]=c[d+4>>2];Nl(6211,b);c[d>>2]=4;c[d+4>>2]=0;c[b>>2]=c[d>>2];c[b+4>>2]=c[d+4>>2];Ul(6248,b);c[d>>2]=5;c[d+4>>2]=0;c[b>>2]=c[d>>2];c[b+4>>2]=c[d+4>>2];Ul(6265,b);c[d>>2]=6;c[d+4>>2]=0;c[b>>2]=c[d>>2];c[b+4>>2]=c[d+4>>2];Ul(6280,b);c[d>>2]=7;c[d+4>>2]=0;c[b>>2]=c[d>>2];c[b+4>>2]=c[d+4>>2];_l(6216,b);V=a;return;}function la(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0,i=0;e=V;V=V+32|0;h=e+16|0;f=e+8|0;i=e;g=eq(20)|0;ta(g,b,d);c[i>>2]=0;c[h>>2]=c[i>>2];va(f,g,h);b=c[f>>2]|0;c[f>>2]=c[a>>2];c[a>>2]=b;b=f+4|0;d=a+4|0;g=c[b>>2]|0;c[b>>2]=c[d>>2];c[d>>2]=g;wa(f);d=eq(352)|0;ua(d,c[a>>2]|0);g=a+8|0;c[i>>2]=0;c[h>>2]=c[i>>2];Fa(f,d,h);d=c[f>>2]|0;c[f>>2]=c[g>>2];c[g>>2]=d;g=f+4|0;d=a+12|0;b=c[g>>2]|0;c[g>>2]=c[d>>2];c[d>>2]=b;Ga(f);V=e;return;}function ma(a,b){a=a|0;b=b|0;dd(c[a+8>>2]|0,b);return;}function na(a){a=a|0;a=(Qh(c[a+8>>2]|0)|0)+107|0;return d[a>>0]|d[a+1>>0]<<8|d[a+2>>0]<<16|d[a+3>>0]<<24|0;}function oa(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0,i=0;e=V;V=V+32|0;g=e+16|0;f=e+8|0;h=e;i=eq(12)|0;Rh(i,b,d);c[h>>2]=0;c[g>>2]=c[h>>2];Vh(f,i,g);i=c[f>>2]|0;c[f>>2]=c[a>>2];c[a>>2]=i;i=f+4|0;d=a+4|0;b=c[i>>2]|0;c[i>>2]=c[d>>2];c[d>>2]=b;Wh(f);d=a+8|0;b=eq(12)|0;Sh(b,c[a>>2]|0);c[h>>2]=0;c[g>>2]=c[h>>2];ai(f,b,g);b=c[f>>2]|0;c[f>>2]=c[d>>2];c[d>>2]=b;b=f+4|0;h=a+12|0;i=c[b>>2]|0;c[b>>2]=c[h>>2];c[h>>2]=i;bi(f);Th(f,c[d>>2]|0);d=a+16|0;h=c[f>>2]|0;i=f+4|0;b=c[i>>2]|0;c[f>>2]=0;c[i>>2]=0;c[g>>2]=c[d>>2];c[d>>2]=h;d=a+20|0;c[g+4>>2]=c[d>>2];c[d>>2]=b;Uh(g);Uh(f);V=e;return;}function pa(a,b){a=a|0;b=b|0;var d=0;a=a+16|0;d=c[a>>2]|0;a:do if(d|0)switch(b|0){case 4:{ui(d);break a;}case 8:{vi(d);vi(c[a>>2]|0);break a;}default:break a;}while(0);return;}function qa(a,b){a=a|0;b=b|0;var d=0;d=a+16|0;a=c[d>>2]|0;a:do if(a|0){switch(b|0){case 1:{hj(a);break a;}case 2:{ij(a);break a;}case 8:{ui(a);a=c[d>>2]|0;break;}case 4:break;default:break a;}ui(a);}while(0);return;}function ra(a,b){a=a|0;b=b|0;var d=0;d=a+16|0;a=c[d>>2]|0;a:do 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za(a){a=a|0;pq(a);jp(a);return;}function Aa(a){a=a|0;a=c[a+12>>2]|0;if(a|0)jp(a);return;}function Ba(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==6407?a+12|0:0)|0;}function Ca(a){a=a|0;Da(a,16);return;}function Da(a,b){a=a|0;b=b|0;Ea(a);return;}function Ea(a){a=a|0;jp(a);return;}function Fa(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=4324;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Ha(a,e);V=d;return;}function Ga(a){a=a|0;var b=0,d=0;a=c[a+4>>2]|0;if(a|0?(d=a+4|0,b=c[d>>2]|0,c[d>>2]=b+-1,(b|0)==0):0){ca[c[(c[a>>2]|0)+8>>2]&255](a);qq(a);}return;}function Ha(a,b){a=a|0;b=b|0;return;}function Ia(a){a=a|0;pq(a);jp(a);return;}function Ja(a){a=a|0;a=c[a+12>>2]|0;if(a|0){Ma(a);jp(a);}return;}function Ka(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==6605?a+12|0:0)|0;}function La(a){a=a|0;Da(a,16);return;}function Ma(a){a=a|0;Na(a+320|0);Oa(a+312|0);Pa(a+300|0);Ta(a+288|0);Qa(a+247|0);Ra(a+4|0);return;}function Na(a){a=a|0;var b=0,d=0;a=c[a+4>>2]|0;if(a|0?(d=a+4|0,b=c[d>>2]|0,c[d>>2]=b+-1,(b|0)==0):0){ca[c[(c[a>>2]|0)+8>>2]&255](a);qq(a);}return;}function Oa(a){a=a|0;var b=0,d=0;a=c[a+4>>2]|0;if(a|0?(d=a+4|0,b=c[d>>2]|0,c[d>>2]=b+-1,(b|0)==0):0){ca[c[(c[a>>2]|0)+8>>2]&255](a);qq(a);}return;}function Pa(a){a=a|0;Sa(a);return;}function Qa(a){a=a|0;a=a+34|0;a=d[a>>0]|d[a+1>>0]<<8|d[a+2>>0]<<16|d[a+3>>0]<<24;if(a|0)gq(a);return;}function Ra(a){a=a|0;Ua(c[a+12>>2]|0);return;}function Sa(a){a=a|0;var b=0,d=0;b=c[a>>2]|0;d=b;if(b|0){c[a+4>>2]=d;Da(b,(c[a+8>>2]|0)-d|0);}return;}function Ta(a){a=a|0;var b=0,d=0;b=c[a>>2]|0;d=b;if(b|0){c[a+4>>2]=d;Da(b,(c[a+8>>2]|0)-d|0);}return;}function Ua(a){a=a|0;er(c[a+-4>>2]|0);return;}function Va(a,b){a=a|0;b=b|0;c[a>>2]=b;c[a+4>>2]=0;c[a+8>>2]=0;c[a+12>>2]=_a(1048576)|0;return;}function Wa(b){b=b|0;var c=0;c=b+32|0;a[c>>0]=0;a[c+1>>0]=0;b=b+34|0;a[b>>0]=0;a[b+1>>0]=0;a[b+2>>0]=0;a[b+3>>0]=0;return;}function Xa(a){a=a|0;c[a>>2]=0;c[a+4>>2]=0;c[a+8>>2]=0;return;}function Ya(a){a=a|0;c[a>>2]=0;c[a+4>>2]=0;c[a+8>>2]=0;c[a+12>>2]=0;a=a+16|0;c[a>>2]=-1;c[a+4>>2]=-1;return;}function Za(b){b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0;i=V;V=V+64|0;g=i+32|0;e=i+56|0;d=i+16|0;h=i;$a(c[b>>2]|0,e,4);mb(g,e,e+4|0);e=lb(6693)|0;f=a[g+11>>0]|0;if((e|0)==((f<<24>>24<0?c[g+4>>2]|0:f&255)|0)){f=(Hq(g,0,-1,6693,e)|0)==0;Cq(g);if(f){e=c[b>>2]|0;c[d>>2]=0;c[d+4>>2]=0;c[d+8>>2]=0;c[d+12>>2]=0;c[g>>2]=c[d>>2];c[g+4>>2]=c[d+4>>2];c[g+8>>2]=c[d+8>>2];c[g+12>>2]=c[d+12>>2];bb(e,g);e=b+20|0;$a(c[b>>2]|0,e,227);cb(b,e);f=db()|0;d=c[f>>2]|0;f=c[f+4>>2]|0;if((d|0)!=(f|0))do{eb(g,d);fb(g,e);gb(g);d=d+24|0;}while((d|0)!=(f|0));hb(b);ib(b);jb(c[b>>2]|0);f=c[b>>2]|0;d=(c[b+116>>2]|0)+8|0;e=h;c[e>>2]=0;c[e+4>>2]=0;e=h+8|0;c[e>>2]=d;c[e+4>>2]=0;c[g>>2]=c[h>>2];c[g+4>>2]=c[h+4>>2];c[g+8>>2]=c[h+8>>2];c[g+12>>2]=c[h+12>>2];bb(f,g);kb(b+4|0);V=i;return;}}else Cq(g);i=v(8)|0;ab(i);x(i|0,2592,8);}function _a(a){a=a|0;var b=0;b=dr(a+68|0)|0;a=b+68&-64;c[a+-4>>2]=b;return a|0;}function $a(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,i=0,j=0,k=0;i=b+13|0;if(!(a[i>>0]|0)){h=b+4|0;f=c[h>>2]|0;j=b+8|0;g=c[j>>2]|0;k=f-g|0;e=(k|0)<(e|0)?k:e;if(e){vr(d|0,(c[b>>2]|0)+g|0,e|0)|0;g=c[j>>2]|0;f=c[h>>2]|0;}k=g+e|0;c[j>>2]=k;c[b+16>>2]=e;if((k|0)>=(f|0))a[i>>0]=1;}else a[b+12>>0]=1;return;}function ab(a){a=a|0;xq(a,6791);c[a>>2]=4352;return;}function bb(b,d){b=b|0;d=d|0;var e=0,f=0,g=0;g=d+8|0;d=c[g>>2]|0;g=c[g+4>>2]|0;e=c[b+4>>2]|0;f=((e|0)<0)<<31>>31;if((g|0)<(f|0)|(g|0)==(f|0)&d>>>0<e>>>0)c[b+8>>2]=d;else a[b+12>>0]=1;return;}function cb(b,c){b=b|0;c=c|0;var d=0.0,e=0.0,f=0,i=0.0,j=0,k=0.0,l=0,m=0.0,n=0,o=0.0;n=c+179|0;a[h>>0]=a[n>>0];a[h+1>>0]=a[n+1>>0];a[h+2>>0]=a[n+2>>0];a[h+3>>0]=a[n+3>>0];a[h+4>>0]=a[n+4>>0];a[h+5>>0]=a[n+5>>0];a[h+6>>0]=a[n+6>>0];a[h+7>>0]=a[n+7>>0];m=+g[h>>3];j=c+187|0;a[h>>0]=a[j>>0];a[h+1>>0]=a[j+1>>0];a[h+2>>0]=a[j+2>>0];a[h+3>>0]=a[j+3>>0];a[h+4>>0]=a[j+4>>0];a[h+5>>0]=a[j+5>>0];a[h+6>>0]=a[j+6>>0];a[h+7>>0]=a[j+7>>0];o=+g[h>>3];b=c+195|0;a[h>>0]=a[b>>0];a[h+1>>0]=a[b+1>>0];a[h+2>>0]=a[b+2>>0];a[h+3>>0]=a[b+3>>0];a[h+4>>0]=a[b+4>>0];a[h+5>>0]=a[b+5>>0];a[h+6>>0]=a[b+6>>0];a[h+7>>0]=a[b+7>>0];i=+g[h>>3];l=c+203|0;a[h>>0]=a[l>>0];a[h+1>>0]=a[l+1>>0];a[h+2>>0]=a[l+2>>0];a[h+3>>0]=a[l+3>>0];a[h+4>>0]=a[l+4>>0];a[h+5>>0]=a[l+5>>0];a[h+6>>0]=a[l+6>>0];a[h+7>>0]=a[l+7>>0];k=+g[h>>3];f=c+211|0;a[h>>0]=a[f>>0];a[h+1>>0]=a[f+1>>0];a[h+2>>0]=a[f+2>>0];a[h+3>>0]=a[f+3>>0];a[h+4>>0]=a[f+4>>0];a[h+5>>0]=a[f+5>>0];a[h+6>>0]=a[f+6>>0];a[h+7>>0]=a[f+7>>0];d=+g[h>>3];c=c+219|0;a[h>>0]=a[c>>0];a[h+1>>0]=a[c+1>>0];a[h+2>>0]=a[c+2>>0];a[h+3>>0]=a[c+3>>0];a[h+4>>0]=a[c+4>>0];a[h+5>>0]=a[c+5>>0];a[h+6>>0]=a[c+6>>0];a[h+7>>0]=a[c+7>>0];e=+g[h>>3];g[h>>3]=o;a[n>>0]=a[h>>0];a[n+1>>0]=a[h+1>>0];a[n+2>>0]=a[h+2>>0];a[n+3>>0]=a[h+3>>0];a[n+4>>0]=a[h+4>>0];a[n+5>>0]=a[h+5>>0];a[n+6>>0]=a[h+6>>0];a[n+7>>0]=a[h+7>>0];g[h>>3]=m;a[l>>0]=a[h>>0];a[l+1>>0]=a[h+1>>0];a[l+2>>0]=a[h+2>>0];a[l+3>>0]=a[h+3>>0];a[l+4>>0]=a[h+4>>0];a[l+5>>0]=a[h+5>>0];a[l+6>>0]=a[h+6>>0];a[l+7>>0]=a[h+7>>0];g[h>>3]=k;a[j>>0]=a[h>>0];a[j+1>>0]=a[h+1>>0];a[j+2>>0]=a[h+2>>0];a[j+3>>0]=a[h+3>>0];a[j+4>>0]=a[h+4>>0];a[j+5>>0]=a[h+5>>0];a[j+6>>0]=a[h+6>>0];a[j+7>>0]=a[h+7>>0];g[h>>3]=i;a[f>>0]=a[h>>0];a[f+1>>0]=a[h+1>>0];a[f+2>>0]=a[h+2>>0];a[f+3>>0]=a[h+3>>0];a[f+4>>0]=a[h+4>>0];a[f+5>>0]=a[h+5>>0];a[f+6>>0]=a[h+6>>0];a[f+7>>0]=a[h+7>>0];g[h>>3]=e;a[b>>0]=a[h>>0];a[b+1>>0]=a[h+1>>0];a[b+2>>0]=a[h+2>>0];a[b+3>>0]=a[h+3>>0];a[b+4>>0]=a[h+4>>0];a[b+5>>0]=a[h+5>>0];a[b+6>>0]=a[h+6>>0];a[b+7>>0]=a[h+7>>0];g[h>>3]=d;a[c>>0]=a[h>>0];a[c+1>>0]=a[h+1>>0];a[c+2>>0]=a[h+2>>0];a[c+3>>0]=a[h+3>>0];a[c+4>>0]=a[h+4>>0];a[c+5>>0]=a[h+5>>0];a[c+6>>0]=a[h+6>>0];a[c+7>>0]=a[h+7>>0];return;}function db(){var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0;g=V;V=V+48|0;e=g+24|0;f=g;b=g+44|0;if((a[21440]|0)==0?Tp(21440)|0:0){c[5374]=0;c[5375]=0;c[5376]=0;$p(21440);}if((a[21448]|0)==0?Tp(21448)|0:0)$p(21448);if((c[5374]|0)==(c[5375]|0)){rq(21508);if((c[5374]|0)==(c[5375]|0)){a[e>>0]=a[b>>0]|0;pb(f,e);b=c[5375]|0;do if(b>>>0>=(c[5376]|0)>>>0){b=((b-(c[5374]|0)|0)/24|0)+1|0;d=xb(21496)|0;if(d>>>0<b>>>0)cr(21496);else{h=c[5374]|0;j=((c[5376]|0)-h|0)/24|0;i=j<<1;ub(e,j>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,((c[5375]|0)-h|0)/24|0,21504);d=e+8|0;sb(c[d>>2]|0,f);c[d>>2]=(c[d>>2]|0)+24;vb(21496,e);wb(e);break;}}else{qb(e,21496,1);j=e+4|0;sb(c[j>>2]|0,f);c[j>>2]=(c[j>>2]|0)+24;rb(e);}while(0);gb(f);}sq(21508);}V=g;return 21496;}function eb(a,b){a=a|0;b=b|0;var d=0,e=0;d=b+16|0;e=c[d>>2]|0;do if(e){if((b|0)==(e|0)){e=tb(a)|0;c[a+16>>2]=e;d=c[d>>2]|0;da[c[(c[d>>2]|0)+12>>2]&15](d,e);break;}else{c[a+16>>2]=Z[c[(c[e>>2]|0)+8>>2]&15](e)|0;break;}}else c[a+16>>2]=0;while(0);return;}function fb(a,b){a=a|0;b=b|0;a=c[a+16>>2]|0;if(!a){b=v(4)|0;c[b>>2]=0;Nb(b);x(b|0,4168,131);}else{da[c[(c[a>>2]|0)+24>>2]&15](a,b);return;}}function gb(a){a=a|0;var b=0;b=c[a+16>>2]|0;if((a|0)!=(b|0)){if(b|0)ca[c[(c[b>>2]|0)+20>>2]&255](b);}else ca[c[(c[b>>2]|0)+16>>2]&255](b);return;}function hb(b){b=b|0;var f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0;q=V;V=V+96|0;i=q+16|0;o=q;l=q+72|0;j=c[b>>2]|0;m=e[b+114>>1]|0;n=o;c[n>>2]=0;c[n+4>>2]=0;n=o+8|0;c[n>>2]=m;c[n+4>>2]=0;c[i>>2]=c[o>>2];c[i+4>>2]=c[o+4>>2];c[i+8>>2]=c[o+8>>2];c[i+12>>2]=c[o+12>>2];bb(j,i);j=b+120|0;a:do if(c[j>>2]|0){k=i+2|0;m=i+16|0;n=i+20|0;o=i+18|0;g=0;while(1){if(!(Ob(c[b>>2]|0)|0))break a;if(Pb(c[b>>2]|0)|0)break a;$a(c[b>>2]|0,i,54);f=7277;h=k;while(1){if((a[h>>0]|0)!=(a[f>>0]|0))break;h=h+1|0;if((h|0)==(m|0)){p=8;break;}else f=f+1|0;}if((p|0)==8?(p=0,(d[o>>0]|d[o+1>>0]<<8)<<16>>16==22204):0)break;Rb(c[b>>2]|0,(d[n>>0]|d[n+1>>0]<<8)&65535,0,1);g=g+1|0;if(g>>>0>=(c[j>>2]|0)>>>0)break a;}o=(d[n>>0]|d[n+1>>0]<<8)&65535;p=fq(o)|0;$a(c[b>>2]|0,p,o);Qb(b,p);jp(p);p=b+125|0;Tb(l,b+247|0,(d[p>>0]|d[p+1>>0]<<8)&65535);Ub(b+300|0,l)|0;Pa(l);V=q;return;}while(0);q=v(8)|0;Sb(q);x(q|0,2672,8);}function ib(a){a=a|0;var b=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0;n=V;V=V+176|0;g=n+40|0;h=n+24|0;b=n+16|0;f=n;k=n+152|0;l=n+136|0;m=n+56|0;j=c[a>>2]|0;i=a+116|0;o=c[i>>2]|0;e=h;c[e>>2]=0;c[e+4>>2]=0;e=h+8|0;c[e>>2]=o;c[e+4>>2]=0;c[g>>2]=c[h>>2];c[g+4>>2]=c[h+4>>2];c[g+8>>2]=c[h+8>>2];c[g+12>>2]=c[h+12>>2];bb(j,g);j=b;c[j>>2]=0;c[j+4>>2]=0;$a(c[a>>2]|0,b,8);if(!(Ob(c[a>>2]|0)|0)){o=v(8)|0;hc(o);x(o|0,2704,8);}e=b;b=c[e>>2]|0;e=c[e+4>>2]|0;if((b|0)==-1&(e|0)==-1){o=v(8)|0;ic(o,7488);x(o|0,2720,8);}o=c[a>>2]|0;j=f;c[j>>2]=0;c[j+4>>2]=0;j=f+8|0;c[j>>2]=b;c[j+4>>2]=e;c[g>>2]=c[f>>2];c[g+4>>2]=c[f+4>>2];c[g+8>>2]=c[f+8>>2];c[g+12>>2]=c[f+12>>2];bb(o,g);if(!(Ob(c[a>>2]|0)|0)){o=v(8)|0;hc(o);x(o|0,2704,8);}$a(c[a>>2]|0,g,8);if(!(Ob(c[a>>2]|0)|0)){o=v(8)|0;hc(o);x(o|0,2704,8);}if(c[g>>2]|0){o=v(8)|0;jc(o);x(o|0,2736,8);}h=a+288|0;j=a+292|0;c[j>>2]=c[h>>2];o=a+259|0;if((d[o>>0]|d[o+1>>0]<<8|d[o+2>>0]<<16|d[o+3>>0]<<24|0)==-1){o=v(8)|0;ic(o,7606);x(o|0,2720,8);}f=g+4|0;kc(h,(c[f>>2]|0)+1|0);o=c[h>>2]|0;c[o>>2]=(c[i>>2]|0)+8;c[o+4>>2]=0;if((c[f>>2]|0)>>>0>1){Va(k,c[a>>2]|0);lc(l,k);mc(m,32,2,8,0);nc(l);oc(m);if(!(c[f>>2]|0)){h=c[h>>2]|0;e=h;}else{e=1;do{if(e>>>0>1)b=c[(c[h>>2]|0)+(e+-1<<3)>>2]|0;else b=0;i=pc(m,l,b,1)|0;b=c[h>>2]|0;o=b+(e<<3)|0;c[o>>2]=i;c[o+4>>2]=((i|0)<0)<<31>>31;e=e+1|0;}while(e>>>0<=(c[f>>2]|0)>>>0);e=b;h=b;}b=c[j>>2]|0;if(b-e>>3>>>0>1){g=b-h>>3;f=h;b=1;e=c[f>>2]|0;f=c[f+4>>2]|0;do{o=h+(b<<3)|0;j=o;e=lr(c[j>>2]|0,c[j+4>>2]|0,e|0,f|0)|0;f=u()|0;c[o>>2]=e;c[o+4>>2]=f;b=b+1|0;}while(b>>>0<g>>>0);}qc(m);rc(l);Ra(k);}V=n;return;}function jb(b){b=b|0;a[b+12>>0]=0;a[b+13>>0]=0;return;}function kb(a){a=a|0;c[a+8>>2]=0;c[a+4>>2]=0;return;}function lb(a){a=a|0;return fo(a)|0;}function mb(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,i=0,j=0,k=0;i=V;V=V+16|0;g=d;h=i;f=e-g|0;if(f>>>0>4294967279)yq(b);if(f>>>0<11)a[b+11>>0]=f;else{k=f+16&-16;j=eq(k)|0;c[b>>2]=j;c[b+8>>2]=k|-2147483648;c[b+4>>2]=f;b=j;}if((d|0)!=(e|0)){g=e-g|0;f=b;while(1){nb(f,d);d=d+1|0;if((d|0)==(e|0))break;else f=f+1|0;}b=b+g|0;}a[h>>0]=0;nb(b,h);V=i;return;}function nb(b,c){b=b|0;c=c|0;a[b>>0]=a[c>>0]|0;return;}function ob(a){a=a|0;yp(a);jp(a);return;}function pb(a,b){a=a|0;b=b|0;c[a>>2]=4372;c[a+16>>2]=a;return;}function qb(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=b;b=c[b+4>>2]|0;c[a+4>>2]=b;c[a+8>>2]=b+(d*24|0);return;}function rb(a){a=a|0;c[(c[a>>2]|0)+4>>2]=c[a+4>>2];return;}function sb(a,b){a=a|0;b=b|0;var d=0,e=0;d=b+16|0;e=c[d>>2]|0;do if(e){if((b|0)==(e|0)){e=tb(a)|0;c[a+16>>2]=e;d=c[d>>2]|0;da[c[(c[d>>2]|0)+12>>2]&15](d,e);break;}else{c[a+16>>2]=e;c[d>>2]=0;break;}}else c[a+16>>2]=0;while(0);return;}function tb(a){a=a|0;return a|0;}function ub(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0;f=a+12|0;c[f>>2]=0;c[a+16>>2]=e;do if(b){if(b>>>0>178956970){f=v(8)|0;vq(f,6723);c[f>>2]=5956;x(f|0,3928,123);}else{e=eq(b*24|0)|0;break;}}else e=0;while(0);c[a>>2]=e;d=e+(d*24|0)|0;c[a+8>>2]=d;c[a+4>>2]=d;c[f>>2]=e+(b*24|0);return;}function vb(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0;i=c[a>>2]|0;j=a+4|0;d=c[j>>2]|0;h=b+4|0;if((d|0)==(i|0)){f=h;g=a;e=c[h>>2]|0;d=i;}else{e=c[h>>2]|0;do{d=d+-24|0;sb(e+-24|0,d);e=(c[h>>2]|0)+-24|0;c[h>>2]=e;}while((d|0)!=(i|0));f=h;g=a;d=c[a>>2]|0;}c[g>>2]=e;c[f>>2]=d;i=b+8|0;h=c[j>>2]|0;c[j>>2]=c[i>>2];c[i>>2]=h;i=a+8|0;j=b+12|0;a=c[i>>2]|0;c[i>>2]=c[j>>2];c[j>>2]=a;c[b>>2]=c[f>>2];return;}function wb(a){a=a|0;var b=0,d=0,e=0,f=0;d=c[a+4>>2]|0;e=a+8|0;b=c[e>>2]|0;if((b|0)!=(d|0))do{f=b+-24|0;c[e>>2]=f;gb(f);b=c[e>>2]|0;}while((b|0)!=(d|0));b=c[a>>2]|0;if(b|0)Da(b,(c[a+12>>2]|0)-b|0);return;}function xb(a){a=a|0;return 178956970;}function yb(a){a=a|0;jp(a);return;}function zb(a){a=a|0;a=eq(8)|0;c[a>>2]=4372;return a|0;}function Ab(a,b){a=a|0;b=b|0;c[b>>2]=4372;return;}function Bb(a){a=a|0;return;}function Cb(a){a=a|0;Da(a,8);return;}function Db(a,b){a=a|0;b=b|0;Hb(a+4|0,b);return;}function Eb(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==7183?a+4|0:0)|0;}function Fb(a){a=a|0;return 2664;}function Gb(a){a=a|0;return;}function Hb(a,b){a=a|0;b=b|0;Ib(a,b);return;}function Ib(b,c){b=b|0;c=c|0;var e=0,f=0;b=c+104|0;c=d[b>>0]|0;e=c>>>7;f=c>>>6&1;if((e|0)==1&(f|0)!=0){f=v(8)|0;Jb(f);x(f|0,2632,8);}if((e|0)==(f|0)){f=v(8)|0;Kb(f);x(f|0,2648,8);}else{a[b>>0]=c&63;return;}}function Jb(a){a=a|0;xq(a,7076);c[a>>2]=4416;return;}function Kb(a){a=a|0;xq(a,7144);c[a>>2]=4436;return;}function Lb(a){a=a|0;yp(a);jp(a);return;}function Mb(a){a=a|0;yp(a);jp(a);return;}function Nb(a){a=a|0;c[a>>2]=6092;return;}function Ob(b){b=b|0;var c=0;c=b+12|0;b=(a[c>>0]|0)==0;a[c>>0]=0;return b|0;}function Pb(b){b=b|0;return(a[b+13>>0]|0)!=0|0;}function Qb(a,b){a=a|0;b=b|0;a=a+247|0;Vb(a,b);if((d[a>>0]|d[a+1>>0]<<8)<<16>>16==2)return;else{b=v(8)|0;Wb(b);x(b|0,2688,8);}}function Rb(b,d,e,f){b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0;switch(f|0){case 0:break;case 2:{f=c[b+4>>2]|0;d=lr(lr(d|0,e|0,-1,-1)|0,u()|0,f|0,((f|0)<0)<<31>>31|0)|0;e=u()|0;break;}case 1:{f=c[b+8>>2]|0;d=lr(f|0,((f|0)<0)<<31>>31|0,d|0,e|0)|0;e=u()|0;break;}default:{e=0;d=0;}}g=c[b+4>>2]|0;h=((g|0)<0)<<31>>31;f=b+12|0;if((e|0)<0|((e|0)>(h|0)|(e|0)==(h|0)&d>>>0>=g>>>0))a[f>>0]=1;else{a[f>>0]=0;c[b+8>>2]=d;}return;}function Sb(a){a=a|0;xq(a,7410);c[a>>2]=4476;return;}function Tb(a,b,c){a=a|0;b=b|0;c=c|0;var e=0,f=0,g=0,h=0,i=0,j=0,k=0;h=V;V=V+16|0;g=h;Xa(a);f=b+32|0;if((d[f>>0]|d[f+1>>0]<<8)<<16>>16){e=b+34|0;b=0;do{j=d[e>>0]|d[e+1>>0]<<8|d[e+2>>0]<<16|d[e+3>>0]<<24;k=j+(b*6|0)|0;i=j+(b*6|0)+2|0;j=j+(b*6|0)+4|0;_b(g,(d[k>>0]|d[k+1>>0]<<8)&65535,(d[i>>0]|d[i+1>>0]<<8)&65535,(d[j>>0]|d[j+1>>0]<<8)&65535);Zb(a,g);c=c-((d[i>>0]|d[i+1>>0]<<8)&65535)|0;b=b+1|0;}while(b>>>0<((d[f>>0]|d[f+1>>0]<<8)&65535)>>>0);}if((c|0)<0){k=v(8)|0;Wb(k);x(k|0,2688,8);}if(c|0){_b(g,0,c,2);Zb(a,g);}V=h;return;}function Ub(b,c){b=b|0;c=c|0;var d=0,e=0;d=V;V=V+16|0;e=d+1|0;a[e>>0]=a[d>>0]|0;fc(b,c,e);V=d;return b|0;}function Vb(b,c){b=b|0;c=c|0;var e=0,f=0,g=0,h=0,i=0,j=0,k=0;f=c+2|0;h=d[c>>0]|d[c+1>>0]<<8;a[b>>0]=h;a[b+1>>0]=h>>8;h=b+2|0;f=d[f>>0]|d[f+1>>0]<<8;a[h>>0]=f;a[h+1>>0]=f>>8;a[b+4>>0]=a[c+4>>0]|0;h=c+6|0;a[b+5>>0]=a[c+5>>0]|0;f=c+8|0;e=b+6|0;h=d[h>>0]|d[h+1>>0]<<8;a[e>>0]=h;a[e+1>>0]=h>>8;e=c+12|0;h=b+8|0;f=d[f>>0]|d[f+1>>0]<<8|d[f+2>>0]<<16|d[f+3>>0]<<24;a[h>>0]=f;a[h+1>>0]=f>>8;a[h+2>>0]=f>>16;a[h+3>>0]=f>>24;h=b+12|0;e=d[e>>0]|d[e+1>>0]<<8|d[e+2>>0]<<16|d[e+3>>0]<<24;a[h>>0]=e;a[h+1>>0]=e>>8;a[h+2>>0]=e>>16;a[h+3>>0]=e>>24;h=c+16|0;e=h;e=d[e>>0]|d[e+1>>0]<<8|d[e+2>>0]<<16|d[e+3>>0]<<24;h=h+4|0;h=d[h>>0]|d[h+1>>0]<<8|d[h+2>>0]<<16|d[h+3>>0]<<24;f=b+16|0;i=f;a[i>>0]=e;a[i+1>>0]=e>>8;a[i+2>>0]=e>>16;a[i+3>>0]=e>>24;f=f+4|0;a[f>>0]=h;a[f+1>>0]=h>>8;a[f+2>>0]=h>>16;a[f+3>>0]=h>>24;f=c+32|0;h=c+24|0;i=h;i=d[i>>0]|d[i+1>>0]<<8|d[i+2>>0]<<16|d[i+3>>0]<<24;h=h+4|0;h=d[h>>0]|d[h+1>>0]<<8|d[h+2>>0]<<16|d[h+3>>0]<<24;e=b+24|0;g=e;a[g>>0]=i;a[g+1>>0]=i>>8;a[g+2>>0]=i>>16;a[g+3>>0]=i>>24;e=e+4|0;a[e>>0]=h;a[e+1>>0]=h>>8;a[e+2>>0]=h>>16;a[e+3>>0]=h>>24;e=c+34|0;h=b+32|0;f=d[f>>0]|d[f+1>>0]<<8;a[h>>0]=f;a[h+1>>0]=f>>8;g=b+34|0;b=d[g>>0]|d[g+1>>0]<<8|d[g+2>>0]<<16|d[g+3>>0]<<24;if(!b)b=f;else{gq(b);b=d[h>>0]|d[h+1>>0]<<8;}f=fq((b&65535)*6|0)|0;a[g>>0]=f;a[g+1>>0]=f>>8;a[g+2>>0]=f>>16;a[g+3>>0]=f>>24;if(b<<16>>16?(b=c+36|0,i=d[e>>0]|d[e+1>>0]<<8,a[f>>0]=i,a[f+1>>0]=i>>8,c=c+38|0,i=f+2|0,b=d[b>>0]|d[b+1>>0]<<8,a[i>>0]=b,a[i+1>>0]=b>>8,i=f+4|0,c=d[c>>0]|d[c+1>>0]<<8,a[i>>0]=c,a[i+1>>0]=c>>8,((d[h>>0]|d[h+1>>0]<<8)&65535)>1):0){b=1;do{c=e;e=e+6|0;i=d[g>>0]|d[g+1>>0]<<8|d[g+2>>0]<<16|d[g+3>>0]<<24;j=c+8|0;f=i+(b*6|0)|0;k=d[e>>0]|d[e+1>>0]<<8;a[f>>0]=k;a[f+1>>0]=k>>8;c=c+10|0;f=i+(b*6|0)+2|0;j=d[j>>0]|d[j+1>>0]<<8;a[f>>0]=j;a[f+1>>0]=j>>8;i=i+(b*6|0)+4|0;c=d[c>>0]|d[c+1>>0]<<8;a[i>>0]=c;a[i+1>>0]=c>>8;b=b+1|0;}while(b>>>0<((d[h>>0]|d[h+1>>0]<<8)&65535)>>>0);}return;}function Wb(a){a=a|0;xq(a,7354);c[a>>2]=4456;return;}function Xb(a){a=a|0;yp(a);jp(a);return;}function Yb(a){a=a|0;yp(a);jp(a);return;}function Zb(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0;i=V;V=V+32|0;f=i;g=a+4|0;d=c[g>>2]|0;h=a+8|0;do if((d|0)==(c[h>>2]|0)){d=((d-(c[a>>2]|0)|0)/12|0)+1|0;e=ec(a)|0;if(e>>>0<d>>>0)cr(a);else{j=c[a>>2]|0;k=((c[h>>2]|0)-j|0)/12|0;h=k<<1;bc(f,k>>>0<e>>>1>>>0?h>>>0<d>>>0?d:h:e,((c[g>>2]|0)-j|0)/12|0,a+8|0);h=f+8|0;g=c[h>>2]|0;c[g>>2]=c[b>>2];c[g+4>>2]=c[b+4>>2];c[g+8>>2]=c[b+8>>2];c[h>>2]=(c[h>>2]|0)+12;cc(a,f);dc(f);break;}}else{$b(f,a,1);k=f+4|0;j=c[k>>2]|0;c[j>>2]=c[b>>2];c[j+4>>2]=c[b+4>>2];c[j+8>>2]=c[b+8>>2];c[k>>2]=(c[k>>2]|0)+12;ac(f);}while(0);V=i;return;}function _b(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;c[a>>2]=b;c[a+4>>2]=d;c[a+8>>2]=e;return;}function $b(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=b;b=c[b+4>>2]|0;c[a+4>>2]=b;c[a+8>>2]=b+(d*12|0);return;}function ac(a){a=a|0;c[(c[a>>2]|0)+4>>2]=c[a+4>>2];return;}function bc(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0;f=a+12|0;c[f>>2]=0;c[a+16>>2]=e;do if(b){if(b>>>0>357913941){f=v(8)|0;vq(f,6723);c[f>>2]=5956;x(f|0,3928,123);}else{e=eq(b*12|0)|0;break;}}else e=0;while(0);c[a>>2]=e;d=e+(d*12|0)|0;c[a+8>>2]=d;c[a+4>>2]=d;c[f>>2]=e+(b*12|0);return;}function cc(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0;e=c[a>>2]|0;h=a+4|0;g=b+4|0;f=(c[h>>2]|0)-e|0;d=(c[g>>2]|0)+(((f|0)/-12|0)*12|0)|0;c[g>>2]=d;if((f|0)>0){ur(d|0,e|0,f|0)|0;e=g;d=c[g>>2]|0;}else e=g;g=c[a>>2]|0;c[a>>2]=d;c[e>>2]=g;g=b+8|0;f=c[h>>2]|0;c[h>>2]=c[g>>2];c[g>>2]=f;g=a+8|0;h=b+12|0;a=c[g>>2]|0;c[g>>2]=c[h>>2];c[h>>2]=a;c[b>>2]=c[e>>2];return;}function dc(a){a=a|0;var b=0,d=0,e=0;b=c[a+4>>2]|0;d=a+8|0;e=c[d>>2]|0;if((e|0)!=(b|0))c[d>>2]=e+(~(((e+-12-b|0)>>>0)/12|0)*12|0);b=c[a>>2]|0;if(b|0)Da(b,(c[a+12>>2]|0)-b|0);return;}function ec(a){a=a|0;return 357913941;}function fc(a,b,d){a=a|0;b=b|0;d=d|0;var e=0;gc(a);c[a>>2]=c[b>>2];d=b+4|0;c[a+4>>2]=c[d>>2];e=b+8|0;c[a+8>>2]=c[e>>2];c[e>>2]=0;c[d>>2]=0;c[b>>2]=0;return;}function gc(a){a=a|0;var b=0,d=0,e=0,f=0;b=c[a>>2]|0;d=b;if(b|0){e=a+4|0;c[e>>2]=d;f=a+8|0;Da(b,(c[f>>2]|0)-d|0);c[f>>2]=0;c[e>>2]=0;c[a>>2]=0;}return;}function hc(a){a=a|0;xq(a,7660);c[a>>2]=4496;return;}function ic(a,b){a=a|0;b=b|0;xq(a,b);c[a>>2]=4516;return;}function jc(a){a=a|0;xq(a,7704);c[a>>2]=4536;return;}function kc(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;d=a+4|0;f=c[a>>2]|0;e=(c[d>>2]|0)-f>>3;if(e>>>0>=b>>>0){if(e>>>0>b>>>0)c[d>>2]=f+(b<<3);}else vc(a,b-e|0);return;}function lc(a,b){a=a|0;b=b|0;c[a>>2]=b;c[a+4>>2]=0;c[a+8>>2]=-1;return;}function mc(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0;c[a+4>>2]=b;c[a+8>>2]=d;c[a+12>>2]=e;c[a+16>>2]=f;c[a+36>>2]=0;c[a+40>>2]=0;c[a+44>>2]=0;Gc(a+48|0);c[a+68>>2]=0;c[a+72>>2]=0;c[a+76>>2]=0;do if(!f){d=a+20|0;if((b+-1|0)>>>0<31){c[d>>2]=b;f=1<<b;c[a+24>>2]=f;d=f>>>1;c[a+28>>2]=0-d;d=f+-1-d|0;break;}else{c[d>>2]=32;c[a+24>>2]=0;c[a+28>>2]=-2147483648;d=2147483647;break;}}else{e=a+20|0;c[e>>2]=0;c[a+24>>2]=f;d=f;g=0;while(1){d=d>>>1;b=g+1|0;if(!d)break;else g=b;}c[e>>2]=(1<<g|0)==(f|0)?g:b;d=f>>>1;c[a+28>>2]=0-d;d=f+-1-d|0;}while(0);c[a+32>>2]=d;c[a>>2]=0;return;}function nc(a){a=a|0;var b=0;b=((Jc(c[a>>2]|0)|0)&255)<<24;b=((Jc(c[a>>2]|0)|0)&255)<<16|b;b=b|((Jc(c[a>>2]|0)|0)&255)<<8;c[a+4>>2]=b|(Jc(c[a>>2]|0)|0)&255;return;}function oc(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0;q=V;V=V+64|0;o=q+44|0;p=q;k=a+36|0;l=a+40|0;a:do if((c[k>>2]|0)==(c[l>>2]|0)){m=a+8|0;b:do if(!(c[m>>2]|0))n=a+20|0;else{f=a+20|0;g=a+44|0;h=o+4|0;i=a+44|0;j=o+8|0;e=0;while(1){Oc(p,(c[f>>2]|0)+1|0,0,0);b=c[l>>2]|0;if(b>>>0<(c[g>>2]|0)>>>0){Pc(o,k,1);Rc(c[h>>2]|0,p);c[h>>2]=(c[h>>2]|0)+44;Qc(o);}else{b=((b-(c[k>>2]|0)|0)/44|0)+1|0;d=Vc(k)|0;if(d>>>0<b>>>0)break;r=c[k>>2]|0;t=((c[g>>2]|0)-r|0)/44|0;s=t<<1;Sc(o,t>>>0<d>>>1>>>0?s>>>0<b>>>0?b:s:d,((c[l>>2]|0)-r|0)/44|0,i);Rc(c[j>>2]|0,p);c[j>>2]=(c[j>>2]|0)+44;Tc(k,o);Uc(o);}Ic(p);e=e+1|0;if(e>>>0>=(c[m>>2]|0)>>>0){n=f;break b;}}cr(k);}while(0);if(c[n>>2]|0){h=a+12|0;i=a+68|0;j=a+72|0;k=a+76|0;l=o+4|0;f=a+76|0;g=o+8|0;e=1;while(1){b=c[h>>2]|0;Oc(p,1<<(e>>>0>b>>>0?b:e),0,0);b=c[j>>2]|0;if(b>>>0<(c[k>>2]|0)>>>0){Pc(o,i,1);Rc(c[l>>2]|0,p);c[l>>2]=(c[l>>2]|0)+44;Qc(o);}else{b=((b-(c[i>>2]|0)|0)/44|0)+1|0;d=Vc(i)|0;if(d>>>0<b>>>0)break;t=c[i>>2]|0;r=((c[k>>2]|0)-t|0)/44|0;s=r<<1;Sc(o,r>>>0<d>>>1>>>0?s>>>0<b>>>0?b:s:d,((c[j>>2]|0)-t|0)/44|0,f);Rc(c[g>>2]|0,p);c[g>>2]=(c[g>>2]|0)+44;Tc(i,o);Uc(o);}Ic(p);e=e+1|0;if(e>>>0>(c[n>>2]|0)>>>0)break a;}cr(i);}}while(0);V=q;return;}function pc(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;d=(Yc(a,b,(c[a+36>>2]|0)+(e*44|0)|0)|0)+d|0;b=c[a+24>>2]|0;if((d|0)<0)return d+b|0;else return d-(d>>>0<b>>>0?0:b)|0;return 0;}function qc(a){a=a|0;Hc(a+68|0);Hc(a+36|0);return;}function rc(a){a=a|0;return;}function sc(a){a=a|0;yp(a);jp(a);return;}function tc(a){a=a|0;yp(a);jp(a);return;}function uc(a){a=a|0;yp(a);jp(a);return;}function vc(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0;i=V;V=V+32|0;f=i;g=a+8|0;h=a+4|0;d=c[h>>2]|0;do if((c[g>>2]|0)-d>>3>>>0<b>>>0){d=(d-(c[a>>2]|0)>>3)+b|0;e=Dc(a)|0;if(e>>>0<d>>>0)cr(a);else{j=c[a>>2]|0;k=(c[g>>2]|0)-j|0;g=k>>2;xc(f,k>>3>>>0<e>>>1>>>0?g>>>0<d>>>0?d:g:e,(c[h>>2]|0)-j>>3,a+8|0);yc(f,b);zc(a,f);Ac(f);break;}}else wc(a,b);while(0);V=i;return;}function wc(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;f=V;V=V+16|0;e=f;Bc(e,a,b);a=e+4|0;b=c[a>>2]|0;d=c[e+8>>2]|0;if((b|0)!=(d|0)){d=d+-8-b|0;wr(b|0,0,d+8&-8|0)|0;c[a>>2]=b+((d>>>3)+1<<3);}Cc(e);V=f;return;}function xc(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0;f=a+12|0;c[f>>2]=0;c[a+16>>2]=e;do if(b){if(b>>>0>536870911){f=v(8)|0;vq(f,6723);c[f>>2]=5956;x(f|0,3928,123);}else{e=eq(b<<3)|0;break;}}else e=0;while(0);c[a>>2]=e;d=e+(d<<3)|0;c[a+8>>2]=d;c[a+4>>2]=d;c[f>>2]=e+(b<<3);return;}function yc(a,b){a=a|0;b=b|0;var d=0,e=0;e=V;V=V+16|0;d=e;Ec(d,a+8|0,b);a=c[d>>2]|0;b=c[d+4>>2]|0;if((a|0)!=(b|0)){b=b+-8-a|0;wr(a|0,0,b+8&-8|0)|0;c[d>>2]=a+((b>>>3)+1<<3);}Fc(d);V=e;return;}function zc(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0;e=c[a>>2]|0;h=a+4|0;g=b+4|0;f=(c[h>>2]|0)-e|0;d=(c[g>>2]|0)+(0-(f>>3)<<3)|0;c[g>>2]=d;if((f|0)>0){ur(d|0,e|0,f|0)|0;e=g;d=c[g>>2]|0;}else e=g;g=c[a>>2]|0;c[a>>2]=d;c[e>>2]=g;g=b+8|0;f=c[h>>2]|0;c[h>>2]=c[g>>2];c[g>>2]=f;g=a+8|0;h=b+12|0;a=c[g>>2]|0;c[g>>2]=c[h>>2];c[h>>2]=a;c[b>>2]=c[e>>2];return;}function Ac(a){a=a|0;var b=0,d=0,e=0;b=c[a+4>>2]|0;d=a+8|0;e=c[d>>2]|0;if((e|0)!=(b|0))c[d>>2]=e+(~((e+-8-b|0)>>>3)<<3);b=c[a>>2]|0;if(b|0)Da(b,(c[a+12>>2]|0)-b|0);return;}function Bc(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=b;b=c[b+4>>2]|0;c[a+4>>2]=b;c[a+8>>2]=b+(d<<3);return;}function Cc(a){a=a|0;c[(c[a>>2]|0)+4>>2]=c[a+4>>2];return;}function Dc(a){a=a|0;return 536870911;}function Ec(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=c[b>>2];c[a+4>>2]=(c[b>>2]|0)+(d<<3);c[a+8>>2]=b;return;}function Fc(a){a=a|0;c[c[a+8>>2]>>2]=c[a>>2];return;}function Gc(a){a=a|0;c[a+12>>2]=1;c[a+16>>2]=2;c[a+8>>2]=4096;c[a+4>>2]=4;c[a>>2]=4;return;}function Hc(a){a=a|0;var b=0,d=0,e=0;d=c[a>>2]|0;if(d|0){e=a+4|0;b=c[e>>2]|0;if((b|0)==(d|0))b=d;else{do{b=b+-44|0;Ic(b);}while((b|0)!=(d|0));b=c[a>>2]|0;}c[e>>2]=d;Da(b,(c[a+8>>2]|0)-b|0);}return;}function Ic(a){a=a|0;var b=0;b=c[a+8>>2]|0;if(b|0)Ua(b);b=c[a+12>>2]|0;if(b|0)Ua(b);b=c[a+16>>2]|0;if(b|0)Ua(b);return;}function Jc(b){b=b|0;var d=0,e=0;e=b+4|0;d=c[e>>2]|0;if((d|0)>=(c[b+8>>2]|0)){Kc(b);d=c[e>>2]|0;}b=c[b+12>>2]|0;c[e>>2]=d+1;return a[b+d>>0]|0;}function Kc(a){a=a|0;var b=0;c[a+4>>2]=0;$a(c[a>>2]|0,c[a+12>>2]|0,1048576);b=Lc(c[a>>2]|0)|0;c[a+8>>2]=b;if(!b){b=v(8)|0;Mc(b);x(b|0,2752,8);}else return;}function Lc(a){a=a|0;return c[a+16>>2]|0;}function Mc(a){a=a|0;xq(a,7769);c[a>>2]=4556;return;}function Nc(a){a=a|0;yp(a);jp(a);return;}function Oc(b,d,e,f){b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0,i=0;c[b>>2]=d;a[b+4>>0]=e&1;h=b+8|0;c[h>>2]=0;i=b+12|0;c[i>>2]=0;g=b+16|0;c[g>>2]=0;if((d+-2|0)>>>0>2046){b=v(8)|0;xq(b,7789);x(b|0,3912,8);}c[b+32>>2]=d+-1;if(d>>>0>16&(e^1)){e=3;while(1)if(1<<e+2>>>0<d>>>0)e=e+1|0;else break;d=1<<e;c[b+36>>2]=d;c[b+40>>2]=15-e;c[g>>2]=_a((d<<2)+8|0)|0;d=c[b>>2]|0;}else{c[g>>2]=0;c[b+40>>2]=0;c[b+36>>2]=0;}c[h>>2]=_a(d<<2)|0;g=_a(c[b>>2]<<2)|0;c[i>>2]=g;c[b+20>>2]=0;d=c[b>>2]|0;e=b+24|0;c[e>>2]=d;d=(d|0)!=0;if(!f){if(d){d=0;do{c[g+(d<<2)>>2]=1;d=d+1|0;}while(d>>>0<(c[b>>2]|0)>>>0);}}else if(d){d=0;do{c[g+(d<<2)>>2]=c[f+(d<<2)>>2];d=d+1|0;}while(d>>>0<(c[b>>2]|0)>>>0);}Xc(b);f=((c[b>>2]|0)+6|0)>>>1;c[e>>2]=f;c[b+28>>2]=f;return;}function Pc(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=b;b=c[b+4>>2]|0;c[a+4>>2]=b;c[a+8>>2]=b+(d*44|0);return;}function Qc(a){a=a|0;c[(c[a>>2]|0)+4>>2]=c[a+4>>2];return;}function Rc(b,d){b=b|0;d=d|0;var e=0;c[b>>2]=c[d>>2];a[b+4>>0]=a[d+4>>0]|0;e=d+8|0;c[b+8>>2]=c[e>>2];c[b+12>>2]=c[d+12>>2];c[b+16>>2]=c[d+16>>2];c[b+20>>2]=c[d+20>>2];c[b+24>>2]=c[d+24>>2];c[b+28>>2]=c[d+28>>2];c[b+32>>2]=c[d+32>>2];c[b+36>>2]=c[d+36>>2];c[b+40>>2]=c[d+40>>2];c[e>>2]=0;c[e+4>>2]=0;c[e+8>>2]=0;return;}function Sc(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0;f=a+12|0;c[f>>2]=0;c[a+16>>2]=e;do if(b){if(b>>>0>97612893){f=v(8)|0;vq(f,6723);c[f>>2]=5956;x(f|0,3928,123);}else{e=eq(b*44|0)|0;break;}}else e=0;while(0);c[a>>2]=e;d=e+(d*44|0)|0;c[a+8>>2]=d;c[a+4>>2]=d;c[f>>2]=e+(b*44|0);return;}function Tc(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0;i=c[a>>2]|0;j=a+4|0;d=c[j>>2]|0;h=b+4|0;if((d|0)==(i|0)){f=h;g=a;e=c[h>>2]|0;d=i;}else{e=c[h>>2]|0;do{d=d+-44|0;Wc(e+-44|0,d);e=(c[h>>2]|0)+-44|0;c[h>>2]=e;}while((d|0)!=(i|0));f=h;g=a;d=c[a>>2]|0;}c[g>>2]=e;c[f>>2]=d;i=b+8|0;h=c[j>>2]|0;c[j>>2]=c[i>>2];c[i>>2]=h;i=a+8|0;j=b+12|0;a=c[i>>2]|0;c[i>>2]=c[j>>2];c[j>>2]=a;c[b>>2]=c[f>>2];return;}function Uc(a){a=a|0;var b=0,d=0,e=0,f=0;d=c[a+4>>2]|0;e=a+8|0;b=c[e>>2]|0;if((b|0)!=(d|0))do{f=b+-44|0;c[e>>2]=f;Ic(f);b=c[e>>2]|0;}while((b|0)!=(d|0));b=c[a>>2]|0;if(b|0)Da(b,(c[a+12>>2]|0)-b|0);return;}function Vc(a){a=a|0;return 97612893;}function Wc(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0;e=c[d>>2]|0;c[b>>2]=e;a[b+4>>0]=a[d+4>>0]|0;c[b+20>>2]=c[d+20>>2];c[b+24>>2]=c[d+24>>2];c[b+28>>2]=c[d+28>>2];c[b+32>>2]=c[d+32>>2];h=b+36|0;c[h>>2]=c[d+36>>2];c[b+40>>2]=c[d+40>>2];e=e<<2;f=_a(e)|0;c[b+8>>2]=f;g=c[b>>2]|0;if(g|0)vr(f|0,c[d+8>>2]|0,g<<2|0)|0;e=_a(e)|0;c[b+12>>2]=e;f=c[b>>2]|0;if(f|0)vr(e|0,c[d+12>>2]|0,f<<2|0)|0;e=c[h>>2]|0;if(e){f=_a((e<<2)+8|0)|0;c[b+16>>2]=f;e=(c[h>>2]<<2)+8|0;if(e|0)vr(f|0,c[d+16>>2]|0,e|0)|0;}else c[b+16>>2]=0;return;}function Xc(b){b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,r=0;r=b+24|0;g=b+20|0;d=(c[g>>2]|0)+(c[r>>2]|0)|0;c[g>>2]=d;if(d>>>0>32768){c[g>>2]=0;if(!(c[b>>2]|0))d=0;else{f=c[b+12>>2]|0;e=0;do{n=f+(e<<2)|0;d=((c[n>>2]|0)+1|0)>>>1;c[n>>2]=d;d=(c[g>>2]|0)+d|0;c[g>>2]=d;e=e+1|0;}while(e>>>0<(c[b>>2]|0)>>>0);}}n=2147483648/(d>>>0)|0;do if((a[b+4>>0]|0)==0?(o=b+36|0,(c[o>>2]|0)!=0):0){if(c[b>>2]|0){j=c[b+8>>2]|0;k=c[b+12>>2]|0;l=b+40|0;m=b+16|0;d=0;h=0;i=0;do{e=(q(h,n)|0)>>>16;c[j+(i<<2)>>2]=e;h=(c[k+(i<<2)>>2]|0)+h|0;e=e>>>(c[l>>2]|0);if(d>>>0<e>>>0){f=i+-1|0;g=c[m>>2]|0;do{d=d+1|0;c[g+(d<<2)>>2]=f;}while((d|0)!=(e|0));d=e;}i=i+1|0;}while(i>>>0<(c[b>>2]|0)>>>0);e=c[m>>2]|0;c[e>>2]=0;if(d>>>0>(c[o>>2]|0)>>>0){d=b;break;}}else{e=c[b+16>>2]|0;c[e>>2]=0;d=0;}do{d=d+1|0;c[e+(d<<2)>>2]=(c[b>>2]|0)+-1;}while(d>>>0<=(c[o>>2]|0)>>>0);d=b;}else p=7;while(0);if((p|0)==7)if(!(c[b>>2]|0))d=b;else{f=c[b+8>>2]|0;g=c[b+12>>2]|0;d=0;e=0;do{c[f+(d<<2)>>2]=(q(e,n)|0)>>>16;e=(c[g+(d<<2)>>2]|0)+e|0;d=d+1|0;}while(d>>>0<(c[b>>2]|0)>>>0);d=b;}p=((c[r>>2]|0)*5|0)>>>2;o=(c[d>>2]<<3)+48|0;p=p>>>0>o>>>0?o:p;c[r>>2]=p;c[b+28>>2]=p;return;}function Yc(a,b,d){a=a|0;b=b|0;d=d|0;var e=0;d=Zc(b,d)|0;c[a>>2]=d;do if(d){if(d>>>0>=32){d=c[a+28>>2]|0;break;}e=c[a+12>>2]|0;if(d>>>0>e>>>0){e=d-e|0;d=Zc(b,(c[a+68>>2]|0)+((d+-1|0)*44|0)|0)|0;e=d<<e|(_c(b,e)|0);}else e=Zc(b,(c[a+68>>2]|0)+((d+-1|0)*44|0)|0)|0;d=c[a>>2]|0;if((e|0)<(1<<d+-1|0)){d=e+1+(-1<<d)|0;break;}else{d=e+1|0;break;}}else d=$c(b,a+48|0)|0;while(0);return d|0;}function Zc(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0;n=a+8|0;m=c[n>>2]|0;f=c[b+16>>2]|0;if(f){e=a+4|0;d=c[e>>2]|0;l=m>>>15;c[n>>2]=l;j=(d>>>0)/(l>>>0)|0;i=j>>>(c[b+40>>2]|0);g=c[f+(i<<2)>>2]|0;i=(c[f+(i+1<<2)>>2]|0)+1|0;h=g+1|0;k=c[b+8>>2]|0;if(i>>>0>h>>>0){f=g;g=i;do{h=(g+f|0)>>>1;i=(c[k+(h<<2)>>2]|0)>>>0>j>>>0;f=i?f:h;g=i?h:g;h=f+1|0;}while(g>>>0>h>>>0);g=f;}f=q(c[k+(g<<2)>>2]|0,l)|0;if((g|0)==(c[b+32>>2]|0))h=m;else h=q(c[k+(h<<2)>>2]|0,l)|0;}else{k=m>>>15;c[n>>2]=k;i=c[b>>2]|0;l=c[b+8>>2]|0;e=a+4|0;d=c[e>>2]|0;j=i>>>1;f=0;h=m;g=0;do{o=q(c[l+(j<<2)>>2]|0,k)|0;m=o>>>0>d>>>0;h=m?o:h;f=m?f:o;g=m?g:j;i=m?j:i;j=(g+i|0)>>>1;}while((j|0)!=(g|0));}c[e>>2]=d-f;o=h-f|0;c[n>>2]=o;if(o>>>0<16777216)ad(a);n=(c[b+12>>2]|0)+(g<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=b+28|0;o=(c[n>>2]|0)+-1|0;c[n>>2]=o;if(!o)Xc(b);return g|0;}function _c(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;if(b>>>0>19){d=(bd(a)|0)&65535;return(_c(a,b+-16|0)|0)<<16|d|0;}e=a+4|0;f=c[e>>2]|0;g=a+8|0;d=(c[g>>2]|0)>>>b;c[g>>2]=d;b=(f>>>0)/(d>>>0)|0;c[e>>2]=f-(q(b,d)|0);if(d>>>0<16777216)ad(a);return b|0;}function $c(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0;e=a+8|0;f=c[e>>2]|0;d=q(f>>>13,c[b+8>>2]|0)|0;g=a+4|0;h=c[g>>2]|0;i=h>>>0>=d>>>0;if(i){c[g>>2]=h-d;d=f-d|0;c[e>>2]=d;}else{c[e>>2]=d;h=b+12|0;c[h>>2]=(c[h>>2]|0)+1;}if(d>>>0<16777216)ad(a);h=b+4|0;a=(c[h>>2]|0)+-1|0;c[h>>2]=a;if(!a)cd(b);return i&1|0;}function ad(a){a=a|0;var b=0,d=0,e=0,f=0;b=a+4|0;d=a+8|0;e=c[b>>2]|0;do{e=e<<8|(Jc(c[a>>2]|0)|0)&255;c[b>>2]=e;f=c[d>>2]<<8;c[d>>2]=f;}while(f>>>0<16777216);return;}function bd(a){a=a|0;var b=0,d=0,e=0,f=0;d=a+4|0;f=c[d>>2]|0;b=a+8|0;e=(c[b>>2]|0)>>>16;c[b>>2]=e;b=(f>>>0)/(e>>>0)|0;c[d>>2]=f-(q(b,e)|0);ad(a);return b&65535|0;}function cd(a){a=a|0;var b=0,d=0,e=0,f=0,g=0;f=c[a>>2]|0;d=a+16|0;b=(c[d>>2]|0)+f|0;c[d>>2]=b;if(b>>>0>8192){e=(b+1|0)>>>1;c[d>>2]=e;g=a+12|0;b=((c[g>>2]|0)+1|0)>>>1;c[g>>2]=b;if((b|0)==(e|0)){b=e+1|0;c[d>>2]=b;d=b;b=e;}else d=e;}else{d=b;b=c[a+12>>2]|0;}c[a+8>>2]=(q(b,2147483648/(d>>>0)|0)|0)>>>18;g=f*5|0;g=g>>>0>259?64:g>>>2;c[a>>2]=g;c[a+4>>2]=g;return;}function dd(a,b){a=a|0;b=b|0;var e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0;m=V;V=V+32|0;h=m+16|0;i=m+8|0;j=m;k=a+336|0;f=k;g=a+259|0;if(!((c[f+4>>2]|0)==0?(c[f>>2]|0)==(d[g>>0]|d[g+1>>0]<<8|d[g+2>>0]<<16|d[g+3>>0]<<24|0):0)){f=a+320|0;e=c[f>>2]|0;g=e;if(!((e|0)!=0?(c[a+312>>2]|0)!=0:0)){e=g;l=5;}}else{f=a+320|0;e=c[a+320>>2]|0;l=5;}if((l|0)==5){l=a+320|0;c[h>>2]=e;c[l>>2]=0;e=a+324|0;c[h+4>>2]=c[e>>2];c[e>>2]=0;Na(h);g=a+312|0;c[h>>2]=c[g>>2];c[g>>2]=0;n=a+316|0;c[h+4>>2]=c[n>>2];c[n>>2]=0;Oa(h);o=eq(12)|0;lc(o,a+4|0);c[j>>2]=0;c[h>>2]=c[j>>2];fd(i,o,h);o=c[i>>2]|0;c[i>>2]=c[g>>2];c[g>>2]=o;o=i+4|0;j=c[o>>2]|0;c[o>>2]=c[n>>2];c[n>>2]=j;Oa(i);ed(i,c[g>>2]|0,a+300|0);g=c[i>>2]|0;n=i+4|0;j=c[n>>2]|0;c[i>>2]=0;c[n>>2]=0;c[h>>2]=c[l>>2];c[l>>2]=g;c[h+4>>2]=c[e>>2];c[e>>2]=j;Na(h);Na(i);e=a+328|0;j=e;j=lr(c[j>>2]|0,c[j+4>>2]|0,1,0)|0;l=u()|0;c[e>>2]=j;c[e+4>>2]=l;e=k;c[e>>2]=0;c[e+4>>2]=0;e=c[f>>2]|0;}$[c[c[e>>2]>>2]&63](e,b)|0;l=k;l=lr(c[l>>2]|0,c[l+4>>2]|0,1,0)|0;n=u()|0;o=k;c[o>>2]=l;c[o+4>>2]=n;V=m;return;}function ed(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0;h=V;V=V+64|0;e=h+56|0;f=h;g=ld(d)|0;if((g|0)==-1){h=v(8)|0;md(h);x(h|0,2784,8);}d=nd(d)|0;a:do if(!d)switch(g|0){case 0:{g=eq(4788)|0;xd(g);wd(a,b,g);break a;}case 1:{g=eq(5116)|0;zd(g);yd(a,b,g);break a;}case 2:{g=eq(5104)|0;Bd(g);Ad(a,b,g);break a;}case 3:{g=eq(5432)|0;Dd(g);Cd(a,b,g);break a;}default:{c[a>>2]=0;c[a+4>>2]=0;break a;}}else{od(e,b);pd(c[e>>2]|0);if((g|2|0)==3)qd(c[e>>2]|0);if((g|1|0)==3)rd(c[e>>2]|0);g=c[e>>2]|0;td(f,d);sd(g,f);ud(f);c[a>>2]=c[e>>2];g=e+4|0;c[a+4>>2]=c[g>>2];c[e>>2]=0;c[g>>2]=0;vd(e);}while(0);V=h;return;}function fd(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=4576;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;gd(a,e);V=d;return;}function gd(a,b){a=a|0;b=b|0;return;}function hd(a){a=a|0;pq(a);jp(a);return;}function id(a){a=a|0;a=c[a+12>>2]|0;if(a|0){rc(a);jp(a);}return;}function jd(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==7983?a+12|0:0)|0;}function kd(a){a=a|0;Da(a,16);return;}function ld(a){a=a|0;var b=0,d=0;b=(c[a+4>>2]|0)-(c[a>>2]|0)|0;a:do if(((b|0)!=0?(d=((b|0)/12|0)+(((nd(a)|0)!=0)<<31>>31)|0,(d|0)!=0):0)?(b=c[a>>2]|0,!(Ed(b,Fd()|0)|0)):0){switch(d|0){case 1:{a=0;break a;}case 2:{if(Gd((c[a>>2]|0)+12|0,Hd()|0)|0){a=1;break a;}if(Gd((c[a>>2]|0)+12|0,Id()|0)|0){a=2;break a;}break;}case 3:{if(Gd((c[a>>2]|0)+12|0,Hd()|0)|0?(d=(c[a>>2]|0)+24|0,Gd(d,Id()|0)|0):0){a=3;break a;}break;}default:{}}a=-1;}else a=-1;while(0);return a|0;}function md(a){a=a|0;xq(a,8131);c[a>>2]=4604;return;}function nd(a){a=a|0;var b=0,d=0;b=c[a+4>>2]|0;if(((b|0)!=(c[a>>2]|0)?(d=b,(c[d+-12>>2]|0)==0):0)?(c[d+-4>>2]|0)==2:0)a=c[d+-8>>2]|0;else a=0;return a|0;}function od(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;d=V;V=V+16|0;e=d+4|0;g=d;f=eq(24)|0;Kd(f,b);c[g>>2]=0;c[e>>2]=c[g>>2];Ld(a,f,e);V=d;return;}function pd(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;e=j+12|0;f=j;b=j+8|0;h=eq(4792)|0;Zd(h,c[a+4>>2]|0);g=a+8|0;c[b>>2]=0;c[e>>2]=c[b>>2];_d(f,h,e);h=a+12|0;b=c[h>>2]|0;i=a+16|0;do if(b>>>0>=(c[i>>2]|0)>>>0){b=(b-(c[g>>2]|0)>>3)+1|0;d=ee(g)|0;if(d>>>0<b>>>0)cr(g);else{k=c[g>>2]|0;l=(c[i>>2]|0)-k|0;i=l>>2;be(e,l>>3>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,(c[h>>2]|0)-k>>3,a+16|0);i=e+8|0;h=c[i>>2]|0;c[h>>2]=c[f>>2];a=f+4|0;c[h+4>>2]=c[a>>2];c[f>>2]=0;c[a>>2]=0;c[i>>2]=h+8;ce(g,e);de(e);break;}}else{$d(e,g,1);l=e+4|0;k=c[l>>2]|0;c[k>>2]=c[f>>2];i=f+4|0;c[k+4>>2]=c[i>>2];c[f>>2]=0;c[i>>2]=0;c[l>>2]=k+8;ae(e);}while(0);Sd(f);V=j;return;}function qd(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;e=j+12|0;f=j;b=j+8|0;h=eq(336)|0;af(h,c[a+4>>2]|0);g=a+8|0;c[b>>2]=0;c[e>>2]=c[b>>2];bf(f,h,e);h=a+12|0;b=c[h>>2]|0;i=a+16|0;do if(b>>>0>=(c[i>>2]|0)>>>0){b=(b-(c[g>>2]|0)>>3)+1|0;d=ee(g)|0;if(d>>>0<b>>>0)cr(g);else{k=c[g>>2]|0;l=(c[i>>2]|0)-k|0;i=l>>2;be(e,l>>3>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,(c[h>>2]|0)-k>>3,a+16|0);i=e+8|0;h=c[i>>2]|0;c[h>>2]=c[f>>2];a=f+4|0;c[h+4>>2]=c[a>>2];c[f>>2]=0;c[a>>2]=0;c[i>>2]=h+8;ce(g,e);de(e);break;}}else{$d(e,g,1);l=e+4|0;k=c[l>>2]|0;c[k>>2]=c[f>>2];i=f+4|0;c[k+4>>2]=c[i>>2];c[f>>2]=0;c[i>>2]=0;c[l>>2]=k+8;ae(e);}while(0);Sd(f);V=j;return;}function rd(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;e=j+12|0;f=j;b=j+8|0;h=eq(324)|0;Af(h,c[a+4>>2]|0);g=a+8|0;c[b>>2]=0;c[e>>2]=c[b>>2];Bf(f,h,e);h=a+12|0;b=c[h>>2]|0;i=a+16|0;do if(b>>>0>=(c[i>>2]|0)>>>0){b=(b-(c[g>>2]|0)>>3)+1|0;d=ee(g)|0;if(d>>>0<b>>>0)cr(g);else{k=c[g>>2]|0;l=(c[i>>2]|0)-k|0;i=l>>2;be(e,l>>3>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,(c[h>>2]|0)-k>>3,a+16|0);i=e+8|0;h=c[i>>2]|0;c[h>>2]=c[f>>2];a=f+4|0;c[h+4>>2]=c[a>>2];c[f>>2]=0;c[a>>2]=0;c[i>>2]=h+8;ce(g,e);de(e);break;}}else{$d(e,g,1);l=e+4|0;k=c[l>>2]|0;c[k>>2]=c[f>>2];i=f+4|0;c[k+4>>2]=c[i>>2];c[f>>2]=0;c[i>>2]=0;c[l>>2]=k+8;ae(e);}while(0);Sd(f);V=j;return;}function sd(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;h=j+12|0;i=j;e=j+8|0;g=eq(64)|0;Qf(g,c[a+4>>2]|0,b);f=a+8|0;c[e>>2]=0;c[h>>2]=c[e>>2];Rf(i,g,h);g=a+12|0;b=c[g>>2]|0;e=a+16|0;do if(b>>>0>=(c[e>>2]|0)>>>0){b=(b-(c[f>>2]|0)>>3)+1|0;d=ee(f)|0;if(d>>>0<b>>>0)cr(f);else{k=c[f>>2]|0;l=(c[e>>2]|0)-k|0;e=l>>2;be(h,l>>3>>>0<d>>>1>>>0?e>>>0<b>>>0?b:e:d,(c[g>>2]|0)-k>>3,a+16|0);a=h+8|0;g=c[a>>2]|0;c[g>>2]=c[i>>2];e=i+4|0;c[g+4>>2]=c[e>>2];c[i>>2]=0;c[e>>2]=0;c[a>>2]=g+8;ce(f,h);de(h);break;}}else{$d(h,f,1);l=h+4|0;k=c[l>>2]|0;c[k>>2]=c[i>>2];a=i+4|0;c[k+4>>2]=c[a>>2];c[i>>2]=0;c[a>>2]=0;c[l>>2]=k+8;ae(h);}while(0);Sd(i);V=j;return;}function td(b,d){b=b|0;d=d|0;var e=0,f=0;e=V;V=V+48|0;f=e;c[b>>2]=d;a[b+4>>0]=0;Jg(b+8|0,d);Jg(b+20|0,d);Oc(f,256,0,0);Kg(b+32|0,d,f);Ic(f);V=e;return;}function ud(a){a=a|0;Ng(a+32|0);_f(a+20|0);_f(a+8|0);return;}function vd(a){a=a|0;var b=0,d=0;a=c[a+4>>2]|0;if(a|0?(d=a+4|0,b=c[d>>2]|0,c[d>>2]=b+-1,(b|0)==0):0){ca[c[(c[a>>2]|0)+8>>2]&255](a);qq(a);}return;}function wd(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0;e=V;V=V+16|0;f=e+4|0;h=e;g=eq(12)|0;Og(g,b,d);c[h>>2]=0;c[f>>2]=c[h>>2];Pg(a,g,f);V=e;return;}function xd(a){a=a|0;ge(a);$g(a+4784|0);return;}function yd(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0;e=V;V=V+16|0;f=e+4|0;h=e;g=eq(12)|0;ah(g,b,d);c[h>>2]=0;c[f>>2]=c[h>>2];bh(a,g,f);V=e;return;}function zd(a){a=a|0;ge(a);nh(a+4784|0);return;}function Ad(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0;e=V;V=V+16|0;f=e+4|0;h=e;g=eq(12)|0;oh(g,b,d);c[h>>2]=0;c[f>>2]=c[h>>2];ph(a,g,f);V=e;return;}function Bd(a){a=a|0;ge(a);Bh(a+4784|0);return;}function Cd(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0;e=V;V=V+16|0;f=e+4|0;h=e;g=eq(12)|0;Ch(g,b,d);c[h>>2]=0;c[f>>2]=c[h>>2];Dh(a,g,f);V=e;return;}function Dd(a){a=a|0;ge(a);Ph(a+4784|0);return;}function Ed(a,b){a=a|0;b=b|0;return(Gd(a,b)|0)^1|0;}function Fd(){if((a[21456]|0)==0?Tp(21456)|0:0){_b(21536,6,20,2);$p(21456);}return 21536;}function Gd(a,b){a=a|0;b=b|0;if((c[a>>2]|0)==(c[b>>2]|0)?(c[a+8>>2]|0)==(c[b+8>>2]|0):0)a=(c[a+4>>2]|0)==(c[b+4>>2]|0);else a=0;return a|0;}function Hd(){if((a[21464]|0)==0?Tp(21464)|0:0){_b(21548,7,8,2);$p(21464);}return 21548;}function Id(){if((a[21472]|0)==0?Tp(21472)|0:0){_b(21560,8,6,2);$p(21472);}return 21560;}function Jd(a){a=a|0;yp(a);jp(a);return;}function Kd(b,d){b=b|0;d=d|0;Md(b);c[b>>2]=4624;c[b+4>>2]=d;c[b+8>>2]=0;c[b+12>>2]=0;c[b+16>>2]=0;a[b+20>>0]=1;return;}function Ld(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=4664;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Ud(a,e);V=d;return;}function Md(a){a=a|0;c[a>>2]=4644;return;}function Nd(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0,i=0,j=0,k=0;k=V;V=V+16|0;h=k;e=c[b+8>>2]|0;i=c[b+12>>2]|0;if((e|0)!=(i|0)){j=h+4|0;do{f=c[e>>2]|0;c[h>>2]=f;g=c[e+4>>2]|0;c[j>>2]=g;if(g|0){g=g+4|0;c[g>>2]=(c[g>>2]|0)+1;}d=$[c[(c[f>>2]|0)+12>>2]&63](f,d)|0;Sd(h);e=e+8|0;}while((e|0)!=(i|0));}e=b+20|0;if(a[e>>0]|0){a[e>>0]=0;nc(c[b+4>>2]|0);}V=k;return d|0;}function Od(a){a=a|0;c[a>>2]=4624;Td(a+8|0);Qd(a);return;}function Pd(a){a=a|0;Od(a);jp(a);return;}function Qd(a){a=a|0;return;}function Rd(a){a=a|0;U();}function Sd(a){a=a|0;var b=0,d=0;a=c[a+4>>2]|0;if(a|0?(d=a+4|0,b=c[d>>2]|0,c[d>>2]=b+-1,(b|0)==0):0){ca[c[(c[a>>2]|0)+8>>2]&255](a);qq(a);}return;}function Td(a){a=a|0;var b=0,d=0,e=0;d=c[a>>2]|0;if(d|0){e=a+4|0;b=c[e>>2]|0;if((b|0)==(d|0))b=d;else{do{b=b+-8|0;Sd(b);}while((b|0)!=(d|0));b=c[a>>2]|0;}c[e>>2]=d;Da(b,(c[a+8>>2]|0)-b|0);}return;}function Ud(a,b){a=a|0;b=b|0;return;}function Vd(a){a=a|0;pq(a);jp(a);return;}function Wd(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+8>>2]&255](a);return;}function Xd(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==8546?a+12|0:0)|0;}function Yd(a){a=a|0;Da(a,16);return;}function Zd(a,b){a=a|0;b=b|0;fe(a);c[a>>2]=4692;c[a+4>>2]=b;ge(a+8|0);return;}function _d(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=4740;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Xe(a,e);V=d;return;}function $d(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=b;b=c[b+4>>2]|0;c[a+4>>2]=b;c[a+8>>2]=b+(d<<3);return;}function ae(a){a=a|0;c[(c[a>>2]|0)+4>>2]=c[a+4>>2];return;}function be(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0;f=a+12|0;c[f>>2]=0;c[a+16>>2]=e;do if(b){if(b>>>0>536870911){f=v(8)|0;vq(f,6723);c[f>>2]=5956;x(f|0,3928,123);}else{e=eq(b<<3)|0;break;}}else e=0;while(0);c[a>>2]=e;d=e+(d<<3)|0;c[a+8>>2]=d;c[a+4>>2]=d;c[f>>2]=e+(b<<3);return;}function ce(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0;i=c[a>>2]|0;j=a+4|0;d=c[j>>2]|0;h=b+4|0;if((d|0)==(i|0)){f=h;g=a;e=c[h>>2]|0;d=i;}else{e=c[h>>2]|0;do{g=d;d=d+-8|0;c[e+-8>>2]=c[d>>2];g=g+-4|0;c[e+-4>>2]=c[g>>2];c[d>>2]=0;c[g>>2]=0;e=(c[h>>2]|0)+-8|0;c[h>>2]=e;}while((d|0)!=(i|0));f=h;g=a;d=c[a>>2]|0;}c[g>>2]=e;c[f>>2]=d;i=b+8|0;h=c[j>>2]|0;c[j>>2]=c[i>>2];c[i>>2]=h;i=a+8|0;j=b+12|0;a=c[i>>2]|0;c[i>>2]=c[j>>2];c[j>>2]=a;c[b>>2]=c[f>>2];return;}function de(a){a=a|0;var b=0,d=0,e=0,f=0;d=c[a+4>>2]|0;e=a+8|0;b=c[e>>2]|0;if((b|0)!=(d|0))do{f=b+-8|0;c[e>>2]=f;Sd(f);b=c[e>>2]|0;}while((b|0)!=(d|0));b=c[a>>2]|0;if(b|0)Da(b,(c[a+12>>2]|0)-b|0);return;}function ee(a){a=a|0;return 536870911;}function fe(a){a=a|0;c[a>>2]=4716;return;}function ge(b){b=b|0;oe(b);pe(b+3980|0);qe(b+4380|0);a[b+4780>>0]=0;a[b+4781>>0]=0;return;}function he(a){a=a|0;c[a>>2]=4692;ze(a+8|0);le(a);return;}function ie(a){a=a|0;he(a);jp(a);return;}function je(a,b){a=a|0;b=b|0;return b|0;}function ke(a,b){a=a|0;b=b|0;return Be(a+8|0,c[a+4>>2]|0,b)|0;}function le(a){a=a|0;return;}function me(a){a=a|0;le(a);jp(a);return;}function ne(a,b){a=a|0;b=b|0;return b|0;}function oe(d){d=d|0;var e=0,f=0;te(d);ue(d+52|0);ue(d+436|0);Oc(d+852|0,64,0,0);a[d+3976>>0]=0;e=d+20|0;f=e+32|0;do{b[e>>1]=0;e=e+2|0;}while((e|0)<(f|0));e=eq(44)|0;Oc(e,256,0,0);c[d+896>>2]=e;e=eq(44)|0;Oc(e,256,0,0);c[d+900>>2]=e;e=d+820|0;c[e>>2]=0;c[e+4>>2]=0;c[e+8>>2]=0;c[e+12>>2]=0;c[e+16>>2]=0;c[e+20>>2]=0;c[e+24>>2]=0;c[e+28>>2]=0;e=0;do{f=eq(44)|0;Oc(f,256,0,0);c[d+904+(e<<2)>>2]=f;f=eq(44)|0;Oc(f,256,0,0);c[d+1928+(e<<2)>>2]=f;f=eq(44)|0;Oc(f,256,0,0);c[d+2952+(e<<2)>>2]=f;e=e+1|0;}while(e>>>0<256);return;}function pe(a){a=a|0;xe(a,16,4,8,0);xe(a+80|0,16,1,8,0);xe(a+160|0,32,2,8,0);xe(a+240|0,32,22,8,0);xe(a+320|0,32,20,8,0);return;}function qe(a){a=a|0;mc(a,16,4,8,0);mc(a+80|0,16,1,8,0);mc(a+160|0,32,2,8,0);mc(a+240|0,32,22,8,0);mc(a+320|0,32,20,8,0);return;}function re(a){a=a|0;ye(a+320|0);ye(a+240|0);ye(a+160|0);ye(a+80|0);ye(a);return;}function se(a){a=a|0;var b=0,d=0;b=c[a+896>>2]|0;if(b|0){Ic(b);jp(b);}b=c[a+900>>2]|0;if(b|0){Ic(b);jp(b);}d=0;do{b=c[a+904+(d<<2)>>2]|0;if(b|0){Ic(b);jp(b);}b=c[a+1928+(d<<2)>>2]|0;if(b|0){Ic(b);jp(b);}b=c[a+2952+(d<<2)>>2]|0;if(b|0){Ic(b);jp(b);}d=d+1|0;}while((d|0)!=256);Ic(a+852|0);return;}function te(b){b=b|0;var c=0;a[b>>0]=0;a[b+1>>0]=0;a[b+2>>0]=0;a[b+3>>0]=0;c=b+4|0;a[c>>0]=0;a[c+1>>0]=0;a[c+2>>0]=0;a[c+3>>0]=0;b=b+12|0;c=b;a[c>>0]=0;a[c+1>>0]=0;a[c+2>>0]=0;a[c+3>>0]=0;b=b+4|0;a[b>>0]=0;a[b+1>>0]=0;a[b+2>>0]=0;a[b+3>>0]=0;return;}function ue(a){a=a|0;var b=0;b=a+384|0;do{ve(a);a=a+24|0;}while((a|0)!=(b|0));return;}function ve(a){a=a|0;we(a);return;}function we(b){b=b|0;c[b>>2]=0;c[b+4>>2]=0;c[b+8>>2]=0;c[b+12>>2]=0;c[b+16>>2]=0;a[b+20>>0]=1;return;}function xe(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0;c[a+4>>2]=b;c[a+8>>2]=d;c[a+12>>2]=e;c[a+16>>2]=f;c[a+36>>2]=0;c[a+40>>2]=0;c[a+44>>2]=0;Gc(a+48|0);c[a+68>>2]=0;c[a+72>>2]=0;c[a+76>>2]=0;do if(!f){d=a+20|0;if((b+-1|0)>>>0<31){c[d>>2]=b;f=1<<b;c[a+24>>2]=f;d=f>>>1;c[a+28>>2]=0-d;d=f+-1-d|0;break;}else{c[d>>2]=32;c[a+24>>2]=0;c[a+28>>2]=-2147483648;d=2147483647;break;}}else{e=a+20|0;c[e>>2]=0;c[a+24>>2]=f;d=f;g=0;while(1){d=d>>>1;b=g+1|0;if(!d)break;else g=b;}c[e>>2]=(1<<g|0)==(f|0)?g:b;d=f>>>1;c[a+28>>2]=0-d;d=f+-1-d|0;}while(0);c[a+32>>2]=d;c[a>>2]=0;return;}function ye(a){a=a|0;var b=0,d=0,e=0,f=0,g=0;g=a+36|0;d=c[g>>2]|0;e=a+40|0;b=c[e>>2]|0;if((b|0)!=(d|0))do{b=b+-44|0;Ic(b);}while((b|0)!=(d|0));c[e>>2]=d;e=a+68|0;f=c[e>>2]|0;d=a+72|0;b=c[d>>2]|0;if((b|0)!=(f|0))do{b=b+-44|0;Ic(b);}while((b|0)!=(f|0));c[d>>2]=f;Hc(e);Hc(g);return;}function ze(a){a=a|0;Ae(a+4380|0);re(a+3980|0);se(a);return;}function Ae(a){a=a|0;qc(a+320|0);qc(a+240|0);qc(a+160|0);qc(a+80|0);qc(a);return;}function Be(f,g,h){f=f|0;g=g|0;h=h|0;var i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0;p=V;V=V+32|0;o=p;i=f+4781|0;if(!(a[i>>0]|0)){Ce(f+4380|0);a[i>>0]=1;}i=f+3976|0;if(!(a[i>>0]|0)){a[i>>0]=1;Ee(De(g)|0,h,20);Fe(o,h);k=f;i=o;j=k+20|0;do{a[k>>0]=a[i>>0]|0;k=k+1|0;i=i+1|0;}while((k|0)<(j|0));b[f+12>>1]=0;}else{m=Zc(g,f+852|0)|0;if(m){if(m&32|0)He((Zc(g,c[f+904+(((Ge(f)|0)&255)<<2)>>2]|0)|0)&255,f);n=f+14|0;k=a[n>>0]|0;i=k&7;k=(k&255)>>>3&7;j=d[16+(k<<3)+i>>0]|0;i=d[80+(k<<3)+i>>0]|0;if(!(m&16))l=b[f+20+(j<<1)>>1]|0;else{q=f+20+(j<<1)|0;l=(pc(f+4380|0,g,e[q>>1]|0,j>>>0<3?j:3)|0)&65535;b[q>>1]=l;}b[f+12>>1]=l;if(m&8|0){q=f+15|0;a[q>>0]=Zc(g,c[f+1928+(d[q>>0]<<2)>>2]|0)|0;}if(m&4|0){n=Zc(g,c[f+896+(((d[n>>0]|0)>>>6&1)<<2)>>2]|0)|0;q=f+16|0;a[q>>0]=Ie(n+(a[q>>0]|0)|0)|0;}if(m&2|0){q=f+17|0;a[q>>0]=Zc(g,c[f+2952+(d[q>>0]<<2)>>2]|0)|0;}if(m&1){q=f+18|0;b[q>>1]=pc(f+4460|0,g,e[q>>1]|0,0)|0;}}else{q=a[f+14>>0]|0;i=q&7;q=(q&255)>>>3&7;k=q;j=d[16+(q<<3)+i>>0]|0;i=d[80+(q<<3)+i>>0]|0;}l=f+52+(j*24|0)|0;m=f+4540|0;n=(k|0)==1&1;k=pc(m,g,Je(l)|0,n)|0;c[o>>2]=k;c[f>>2]=(c[f>>2]|0)+k;Ke(l,o);l=f+436+(j*24|0)|0;k=Je(l)|0;j=Le(m)|0;q=f+4620|0;j=pc(q,g,k,(j>>>0<20?j&-2:20)|n)|0;c[o>>2]=j;k=f+4|0;c[k>>2]=(c[k>>2]|0)+j;Ke(l,o);o=Le(m)|0;o=(Le(q)|0)+o|0;q=f+820+(i<<2)|0;o=pc(f+4700|0,g,c[q>>2]|0,(o>>>0<36?o>>>1&2147483646:18)|n)|0;c[f+8>>2]=o;c[q>>2]=o;Me(f,h);}V=p;return h+20|0;}function Ce(a){a=a|0;oc(a);oc(a+80|0);oc(a+160|0);oc(a+240|0);oc(a+320|0);return;}function De(a){a=a|0;return c[a>>2]|0;}function Ee(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,i=0,j=0,k=0;k=b+4|0;f=c[k>>2]|0;j=(c[b+8>>2]|0)-f|0;j=j>>>0>e>>>0?e:j;i=b+12|0;g=(c[i>>2]|0)+f|0;h=g+j|0;if(j){f=g;g=d;while(1){a[g>>0]=a[f>>0]|0;f=f+1|0;if((f|0)==(h|0))break;else g=g+1|0;}f=c[k>>2]|0;}c[k>>2]=f+j;e=e-j|0;if(e|0){Kc(b);g=(c[i>>2]|0)+(c[k>>2]|0)|0;h=g+e|0;f=d+j|0;while(1){a[f>>0]=a[g>>0]|0;g=g+1|0;if((g|0)==(h|0))break;else f=f+1|0;}c[k>>2]=(c[k>>2]|0)+e;}return;}function Fe(d,e){d=d|0;e=e|0;te(d);c[d>>2]=Ne(e)|0;c[d+4>>2]=Ne(e+4|0)|0;c[d+8>>2]=Ne(e+8|0)|0;b[d+12>>1]=Oe(e+12|0)|0;He(Pe(e+14|0)|0,d);a[d+15>>0]=Pe(e+15|0)|0;a[d+16>>0]=Qe(e+16|0)|0;a[d+17>>0]=Qe(e+17|0)|0;b[d+18>>1]=Oe(e+18|0)|0;return;}function Ge(b){b=b|0;return a[b+14>>0]|0;}function He(b,c){b=b|0;c=c|0;a[c+14>>0]=b;return;}function Ie(a){a=a|0;return a&255|0;}function Je(a){a=a|0;return c[a+8>>2]|0;}function Ke(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0,i=0,j=0,k=0;k=b+20|0;do if(!(a[k>>0]|0)){j=b+8|0;e=c[j>>2]|0;f=c[d>>2]|0;g=b+4|0;h=c[g>>2]|0;if((e|0)>=(f|0)){if((h|0)<(f|0)){c[b>>2]=h;c[g>>2]=c[d>>2];}else c[b>>2]=f;a[k>>0]=1;break;}c[b>>2]=h;c[g>>2]=e;g=b+16|0;h=c[g>>2]|0;i=c[d>>2]|0;e=b+12|0;f=c[e>>2]|0;if((h|0)<(i|0)){c[j>>2]=f;c[e>>2]=h;c[g>>2]=c[d>>2];break;}if((f|0)<(i|0)){c[j>>2]=f;c[e>>2]=c[d>>2];break;}else{c[j>>2]=i;break;}}else{g=c[d>>2]|0;i=b+8|0;e=c[i>>2]|0;h=b+12|0;f=c[h>>2]|0;if((g|0)>=(e|0)){e=b+16|0;if((g|0)<(f|0)){c[e>>2]=f;c[h>>2]=c[d>>2];}else c[e>>2]=g;a[k>>0]=0;break;}c[b+16>>2]=f;c[h>>2]=e;e=c[d>>2]|0;f=c[b>>2]|0;g=b+4|0;h=c[g>>2]|0;if((e|0)<(f|0)){c[i>>2]=h;c[g>>2]=f;c[b>>2]=c[d>>2];break;}if((e|0)<(h|0)){c[i>>2]=h;c[g>>2]=c[d>>2];break;}else{c[i>>2]=e;break;}}while(0);return;}function Le(a){a=a|0;return c[a>>2]|0;}function Me(b,c){b=b|0;c=c|0;var e=0;Se(d[b>>0]|d[b+1>>0]<<8|d[b+2>>0]<<16|d[b+3>>0]<<24,c);e=b+4|0;Se(d[e>>0]|d[e+1>>0]<<8|d[e+2>>0]<<16|d[e+3>>0]<<24,c+4|0);e=b+8|0;Se(d[e>>0]|d[e+1>>0]<<8|d[e+2>>0]<<16|d[e+3>>0]<<24,c+8|0);e=b+12|0;Te(d[e>>0]|d[e+1>>0]<<8,c+12|0);Ue(Ge(b)|0,c+14|0);Ue(a[b+15>>0]|0,c+15|0);Ve(a[b+16>>0]|0,c+16|0);Ve(a[b+17>>0]|0,c+17|0);b=b+18|0;Te(d[b>>0]|d[b+1>>0]<<8,c+18|0);return;}function Ne(a){a=a|0;return Re(a)|0;}function Oe(b){b=b|0;return(a[b+1>>0]<<8|d[b>>0])&65535|0;}function Pe(b){b=b|0;return a[b>>0]|0;}function Qe(b){b=b|0;return a[b>>0]|0;}function Re(a){a=a|0;return(d[a+1>>0]|0)<<8|(d[a>>0]|0)|(d[a+2>>0]|0)<<16|(d[a+3>>0]|0)<<24|0;}function Se(a,b){a=a|0;b=b|0;We(a,b);return;}function Te(b,c){b=b|0;c=c|0;a[c+1>>0]=(b&65535)>>>8;a[c>>0]=b;return;}function Ue(b,c){b=b|0;c=c|0;a[c>>0]=b;return;}function Ve(b,c){b=b|0;c=c|0;a[c>>0]=b;return;}function We(b,c){b=b|0;c=c|0;a[c+3>>0]=b>>>24;a[c+2>>0]=b>>>16;a[c+1>>0]=b>>>8;a[c>>0]=b;return;}function Xe(a,b){a=a|0;b=b|0;return;}function Ye(a){a=a|0;pq(a);jp(a);return;}function Ze(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+4>>2]&255](a);return;}function _e(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==9202?a+12|0:0)|0;}function $e(a){a=a|0;Da(a,16);return;}function af(a,b){a=a|0;b=b|0;fe(a);c[a>>2]=4768;c[a+4>>2]=b;cf(a+8|0);return;}function bf(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=4792;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Xe(a,e);V=d;return;}function cf(b){b=b|0;gf(b);hf(b+164|0);jf(b+244|0);a[b+324>>0]=0;a[b+325>>0]=0;return;}function df(a){a=a|0;c[a>>2]=4768;of(a+8|0);le(a);return;}function ef(a){a=a|0;df(a);jp(a);return;}function ff(a,b){a=a|0;b=b|0;return qf(a+8|0,c[a+4>>2]|0,b)|0;}function gf(b){b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0;h=V;V=V+16|0;f=h;a[b>>0]=0;Oc(b+4|0,516,0,0);Oc(b+48|0,6,0,0);c[b+92>>2]=0;c[b+96>>2]=0;e=b+100|0;mf(e);nf(f);g=c[f>>2]|0;f=c[f+4>>2]|0;d=4;while(1){i=e;j=i;a[j>>0]=g;a[j+1>>0]=g>>8;a[j+2>>0]=g>>16;a[j+3>>0]=g>>24;i=i+4|0;a[i>>0]=f;a[i+1>>0]=f>>8;a[i+2>>0]=f>>16;a[i+3>>0]=f>>24;d=d+-1|0;if(!d)break;else e=e+8|0;}j=b+132|0;c[j>>2]=0;c[j+4>>2]=0;c[j+8>>2]=0;c[j+12>>2]=0;c[j+16>>2]=0;c[j+20>>2]=0;c[j+24>>2]=0;c[j+28>>2]=0;V=h;return;}function hf(a){a=a|0;xe(a,32,9,8,0);return;}function jf(a){a=a|0;mc(a,32,9,8,0);return;}function kf(a){a=a|0;ye(a);return;}function lf(a){a=a|0;Ic(a+48|0);Ic(a+4|0);return;}function mf(a){a=a|0;var b=0;b=a+32|0;do{nf(a);a=a+8|0;}while((a|0)!=(b|0));return;}function nf(b){b=b|0;var c=0;c=b;a[c>>0]=0;a[c+1>>0]=0;a[c+2>>0]=0;a[c+3>>0]=0;b=b+4|0;a[b>>0]=0;a[b+1>>0]=0;a[b+2>>0]=0;a[b+3>>0]=0;return;}function of(a){a=a|0;pf(a+244|0);kf(a+164|0);lf(a);return;}function pf(a){a=a|0;qc(a);return;}function qf(b,e,f){b=b|0;e=e|0;f=f|0;var g=0,h=0,i=0,j=0,k=0;g=b+325|0;if(!(a[g>>0]|0)){rf(b+244|0);a[g>>0]=1;}if(!(a[b>>0]|0)){a[b>>0]=1;Ee(De(e)|0,f,8);i=sf(f)|0;j=u()|0;b=b+100|0;e=b;a[e>>0]=i;a[e+1>>0]=i>>8;a[e+2>>0]=i>>16;a[e+3>>0]=i>>24;b=b+4|0;a[b>>0]=j;a[b+1>>0]=j>>8;a[b+2>>0]=j>>16;a[b+3>>0]=j>>24;}else{j=b+92|0;a:do if(!(c[b+132+(c[j>>2]<<2)>>2]|0)){g=Zc(e,b+48|0)|0;switch(g|0){case 1:{e=pc(b+244|0,e,0,0)|0;c[b+132+(c[j>>2]<<2)>>2]=e;e=c[j>>2]|0;k=c[b+132+(e<<2)>>2]|0;i=b+100+(e<<3)|0;h=i;g=h;h=h+4|0;k=lr(d[g>>0]|d[g+1>>0]<<8|d[g+2>>0]<<16|d[g+3>>0]<<24|0,d[h>>0]|d[h+1>>0]<<8|d[h+2>>0]<<16|d[h+3>>0]<<24|0,k|0,((k|0)<0)<<31>>31|0)|0;h=u()|0;g=i;a[g>>0]=k;a[g+1>>0]=k>>8;a[g+2>>0]=k>>16;a[g+3>>0]=k>>24;i=i+4|0;a[i>>0]=h;a[i+1>>0]=h>>8;a[i+2>>0]=h>>16;a[i+3>>0]=h>>24;c[b+148+(e<<2)>>2]=0;break a;}case 2:{k=b+96|0;c[k>>2]=(c[k>>2]|0)+1&3;i=b+100+(c[j>>2]<<3)+4|0;i=pc(b+244|0,e,d[i>>0]|d[i+1>>0]<<8|d[i+2>>0]<<16|d[i+3>>0]<<24,8)|0;g=b+100+(c[k>>2]<<3)|0;h=g;a[h>>0]=0;a[h+1>>0]=0;a[h+2>>0]=0;a[h+3>>0]=0;g=g+4|0;a[g>>0]=i;a[g+1>>0]=i>>8;a[g+2>>0]=i>>16;a[g+3>>0]=i>>24;g=tf(e)|0;k=c[k>>2]|0;e=b+100+(k<<3)|0;i=e;h=i;i=i+4|0;i=d[i>>0]|d[i+1>>0]<<8|d[i+2>>0]<<16|d[i+3>>0]<<24;g=d[h>>0]|d[h+1>>0]<<8|d[h+2>>0]<<16|d[h+3>>0]<<24|g;h=e;a[h>>0]=g;a[h+1>>0]=g>>8;a[h+2>>0]=g>>16;a[h+3>>0]=g>>24;e=e+4|0;a[e>>0]=i;a[e+1>>0]=i>>8;a[e+2>>0]=i>>16;a[e+3>>0]=i>>24;c[j>>2]=k;c[b+132+(k<<2)>>2]=0;c[b+148+(c[j>>2]<<2)>>2]=0;break a;}default:{if((g|0)<=2)break a;c[j>>2]=g+2+(c[j>>2]|0)&3;qf(b,e,f)|0;break a;}}}else{i=Zc(e,b+4|0)|0;if((i|0)==1){g=pc(b+244|0,e,c[b+132+(c[j>>2]<<2)>>2]|0,1)|0;k=c[j>>2]|0;e=b+100+(k<<3)|0;i=e;h=i;i=i+4|0;g=lr(d[h>>0]|d[h+1>>0]<<8|d[h+2>>0]<<16|d[h+3>>0]<<24|0,d[i>>0]|d[i+1>>0]<<8|d[i+2>>0]<<16|d[i+3>>0]<<24|0,g|0,((g|0)<0)<<31>>31|0)|0;i=u()|0;h=e;a[h>>0]=g;a[h+1>>0]=g>>8;a[h+2>>0]=g>>16;a[h+3>>0]=g>>24;e=e+4|0;a[e>>0]=i;a[e+1>>0]=i>>8;a[e+2>>0]=i>>16;a[e+3>>0]=i>>24;c[b+148+(k<<2)>>2]=0;break;}if((i|0)>=511){if((i|0)==512){k=b+96|0;c[k>>2]=(c[k>>2]|0)+1&3;i=b+100+(c[j>>2]<<3)+4|0;i=pc(b+244|0,e,d[i>>0]|d[i+1>>0]<<8|d[i+2>>0]<<16|d[i+3>>0]<<24,8)|0;g=b+100+(c[k>>2]<<3)|0;h=g;a[h>>0]=0;a[h+1>>0]=0;a[h+2>>0]=0;a[h+3>>0]=0;g=g+4|0;a[g>>0]=i;a[g+1>>0]=i>>8;a[g+2>>0]=i>>16;a[g+3>>0]=i>>24;g=tf(e)|0;k=c[k>>2]|0;e=b+100+(k<<3)|0;i=e;h=i;i=i+4|0;i=d[i>>0]|d[i+1>>0]<<8|d[i+2>>0]<<16|d[i+3>>0]<<24;g=d[h>>0]|d[h+1>>0]<<8|d[h+2>>0]<<16|d[h+3>>0]<<24|g;h=e;a[h>>0]=g;a[h+1>>0]=g>>8;a[h+2>>0]=g>>16;a[h+3>>0]=g>>24;e=e+4|0;a[e>>0]=i;a[e+1>>0]=i>>8;a[e+2>>0]=i>>16;a[e+3>>0]=i>>24;c[j>>2]=k;c[b+132+(k<<2)>>2]=0;c[b+148+(c[j>>2]<<2)>>2]=0;break;}if((i|0)<=511)break;c[j>>2]=(c[j>>2]|0)+i&3;qf(b,e,f)|0;break;}do if(!i){g=pc(b+244|0,e,0,7)|0;h=b+148+(c[j>>2]<<2)|0;c[h>>2]=(c[h>>2]|0)+1;h=c[j>>2]|0;if((c[b+148+(h<<2)>>2]|0)>3){c[b+132+(h<<2)>>2]=g;c[b+148+(c[j>>2]<<2)>>2]=0;}}else{if((i|0)<500){g=b+244|0;h=q(c[b+132+(c[j>>2]<<2)>>2]|0,i)|0;if((i|0)<10){g=pc(g,e,h,2)|0;break;}else{g=pc(g,e,h,3)|0;break;}}if((i|0)==500){g=pc(b+244|0,e,(c[b+132+(c[j>>2]<<2)>>2]|0)*500|0,4)|0;h=b+148+(c[j>>2]<<2)|0;c[h>>2]=(c[h>>2]|0)+1;h=c[j>>2]|0;if((c[b+148+(h<<2)>>2]|0)<=3)break;c[b+132+(h<<2)>>2]=g;c[b+148+(c[j>>2]<<2)>>2]=0;break;}g=500-i|0;h=b+244|0;i=c[b+132+(c[j>>2]<<2)>>2]|0;if((g|0)>-10){g=pc(h,e,q(i,g)|0,5)|0;break;}g=pc(h,e,q(i,-10)|0,6)|0;h=b+148+(c[j>>2]<<2)|0;c[h>>2]=(c[h>>2]|0)+1;h=c[j>>2]|0;if((c[b+148+(h<<2)>>2]|0)>3){c[b+132+(h<<2)>>2]=g;c[b+148+(c[j>>2]<<2)>>2]=0;}}while(0);k=b+100+(c[j>>2]<<3)|0;h=k;e=h;h=h+4|0;h=lr(d[e>>0]|d[e+1>>0]<<8|d[e+2>>0]<<16|d[e+3>>0]<<24|0,d[h>>0]|d[h+1>>0]<<8|d[h+2>>0]<<16|d[h+3>>0]<<24|0,g|0,((g|0)<0)<<31>>31|0)|0;e=u()|0;i=k;a[i>>0]=h;a[i+1>>0]=h>>8;a[i+2>>0]=h>>16;a[i+3>>0]=h>>24;k=k+4|0;a[k>>0]=e;a[k+1>>0]=e>>8;a[k+2>>0]=e>>16;a[k+3>>0]=e>>24;}while(0);uf(b+100+(c[j>>2]<<3)|0,f);}return f+8|0;}function rf(a){a=a|0;oc(a);return;}function sf(a){a=a|0;var b=0,d=0,e=0;b=V;V=V+16|0;d=b;e=Re(a)|0;vf(d,e,Re(a+4|0)|0);a=c[d>>2]|0;t(c[d+4>>2]|0);V=b;return a|0;}function tf(a){a=a|0;var b=0;b=(bd(a)|0)&65535;return((bd(a)|0)&65535)<<16|b|0;}function uf(a,b){a=a|0;b=b|0;var c=0;c=a;We(d[c>>0]|d[c+1>>0]<<8|d[c+2>>0]<<16|d[c+3>>0]<<24,b);a=a+4|0;We(d[a>>0]|d[a+1>>0]<<8|d[a+2>>0]<<16|d[a+3>>0]<<24,b+4|0);return;}function vf(b,c,d){b=b|0;c=c|0;d=d|0;var e=0;e=b;a[e>>0]=c;a[e+1>>0]=c>>8;a[e+2>>0]=c>>16;a[e+3>>0]=c>>24;c=b+4|0;a[c>>0]=d;a[c+1>>0]=d>>8;a[c+2>>0]=d>>16;a[c+3>>0]=d>>24;return;}function wf(a){a=a|0;pq(a);jp(a);return;}function xf(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+4>>2]&255](a);return;}function yf(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==9890?a+12|0:0)|0;}function zf(a){a=a|0;Da(a,16);return;}function Af(a,b){a=a|0;b=b|0;fe(a);c[a>>2]=4820;c[a+4>>2]=b;Cf(a+8|0);return;}function Bf(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=4844;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Xe(a,e);V=d;return;}function Cf(b){b=b|0;a[b>>0]=0;Gf(b+1|0);Oc(b+8|0,128,0,0);Oc(b+52|0,256,0,0);Oc(b+96|0,256,0,0);Oc(b+140|0,256,0,0);Oc(b+184|0,256,0,0);Oc(b+228|0,256,0,0);Oc(b+272|0,256,0,0);return;}function Df(a){a=a|0;c[a>>2]=4820;Hf(a+8|0);le(a);return;}function Ef(a){a=a|0;Df(a);jp(a);return;}function Ff(a,b){a=a|0;b=b|0;return If(a+8|0,c[a+4>>2]|0,b)|0;}function Gf(b){b=b|0;var c=0;a[b>>0]=0;a[b+1>>0]=0;c=b+2|0;a[c>>0]=0;a[c+1>>0]=0;b=b+4|0;a[b>>0]=0;a[b+1>>0]=0;return;}function Hf(a){a=a|0;Ic(a+272|0);Ic(a+228|0);Ic(a+184|0);Ic(a+140|0);Ic(a+96|0);Ic(a+52|0);Ic(a+8|0);return;}function If(c,f,g){c=c|0;f=f|0;g=g|0;var h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0;o=V;V=V+16|0;m=o;if(!(a[c>>0]|0)){a[c>>0]=1;Ee(De(f)|0,g,6);Jf(m,g);n=c+1|0;a[n>>0]=a[m>>0]|0;a[n+1>>0]=a[m+1>>0]|0;a[n+2>>0]=a[m+2>>0]|0;a[n+3>>0]=a[m+3>>0]|0;a[n+4>>0]=a[m+4>>0]|0;a[n+5>>0]=a[m+5>>0]|0;}else{n=Zc(f,c+8|0)|0;Gf(m);if(!(n&1)){h=c+1|0;h=(d[h>>0]|d[h+1>>0]<<8)&255;}else{l=(Zc(f,c+52|0)|0)&255;h=c+1|0;h=(Ie(l+((d[h>>0]|d[h+1>>0]<<8)&255)|0)|0)&255;}b[m>>1]=h;if(!(n&2)){l=c+1|0;h=h|(d[l>>0]|d[l+1>>0]<<8)&-256;}else{h=(Zc(f,c+96|0)|0)&255;l=c+1|0;h=((Ie((((d[l>>0]|d[l+1>>0]<<8)&65535)>>>8)+h|0)|0)&255)<<8;h=(h|e[m>>1])&65535;}b[m>>1]=h;do if(n&64){k=c+1|0;i=(h&255)-((d[k>>0]|d[k+1>>0]<<8)&255)|0;if(!(n&4)){h=c+3|0;h=(d[h>>0]|d[h+1>>0]<<8)&255;}else{h=(Zc(f,c+140|0)|0)&255;l=c+3|0;l=i+((d[l>>0]|d[l+1>>0]<<8)&255)|0;h=(Ie(((l|0)<1?0:(l|0)>254?255:l&255)+h|0)|0)&255;}l=m+2|0;b[l>>1]=h;if(!(n&16)){h=c+5|0;h=(d[h>>0]|d[h+1>>0]<<8)&255;}else{h=Zc(f,c+228|0)|0;p=c+3|0;j=c+5|0;j=((i+(b[l>>1]&255)-((d[p>>0]|d[p+1>>0]<<8)&255)|0)/2|0)+((d[j>>0]|d[j+1>>0]<<8)&255)|0;h=(Ie(((j|0)<1?0:(j|0)>254?255:j&255)+(h&255)|0)|0)&255;}j=m+4|0;b[j>>1]=h;h=((e[m>>1]|0)>>>8)-(((d[k>>0]|d[k+1>>0]<<8)&65535)>>>8)|0;if(!(n&8)){i=c+3|0;i=b[l>>1]|(d[i>>0]|d[i+1>>0]<<8)&-256;}else{i=(Zc(f,c+184|0)|0)&255;p=c+3|0;p=(((d[p>>0]|d[p+1>>0]<<8)&65535)>>>8)+h|0;i=((Ie(((p|0)<1?0:(p|0)>254?255:p&255)+i|0)|0)&255)<<8;i=(i|e[l>>1])&65535;}b[l>>1]=i;if(!(n&32)){p=c+5|0;b[j>>1]=b[j>>1]|(d[p>>0]|d[p+1>>0]<<8)&-256;break;}else{p=Zc(f,c+272|0)|0;f=c+3|0;n=c+5|0;n=((((e[l>>1]|0)>>>8)+h-(((d[f>>0]|d[f+1>>0]<<8)&65535)>>>8)|0)/2|0)+(((d[n>>0]|d[n+1>>0]<<8)&65535)>>>8)|0;p=((Ie(((n|0)<1?0:(n|0)>254?255:n&255)+(p&255)|0)|0)&255)<<8;b[j>>1]=p|e[j>>1];break;}}else{b[m+2>>1]=h;b[m+4>>1]=h;}while(0);p=c+1|0;a[p>>0]=a[m>>0]|0;a[p+1>>0]=a[m+1>>0]|0;a[p+2>>0]=a[m+2>>0]|0;a[p+3>>0]=a[m+3>>0]|0;a[p+4>>0]=a[m+4>>0]|0;a[p+5>>0]=a[m+5>>0]|0;Kf(p,g);}V=o;return g+6|0;}function Jf(a,b){a=a|0;b=b|0;var c=0,d=0;d=Oe(b)|0;c=Oe(b+2|0)|0;Lf(a,d,c,Oe(b+4|0)|0);return;}function Kf(a,b){a=a|0;b=b|0;var c=0;Te(d[a>>0]|d[a+1>>0]<<8,b);c=a+2|0;Te(d[c>>0]|d[c+1>>0]<<8,b+2|0);a=a+4|0;Te(d[a>>0]|d[a+1>>0]<<8,b+4|0);return;}function Lf(b,c,d,e){b=b|0;c=c|0;d=d|0;e=e|0;a[b>>0]=c;a[b+1>>0]=c>>8;c=b+2|0;a[c>>0]=d;a[c+1>>0]=d>>8;d=b+4|0;a[d>>0]=e;a[d+1>>0]=e>>8;return;}function Mf(a){a=a|0;pq(a);jp(a);return;}function Nf(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+4>>2]&255](a);return;}function Of(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==10570?a+12|0:0)|0;}function Pf(a){a=a|0;Da(a,16);return;}function Qf(a,b,d){a=a|0;b=b|0;d=d|0;fe(a);c[a>>2]=4872;c[a+4>>2]=b;Sf(a+8|0,d);return;}function Rf(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=4896;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Xe(a,e);V=d;return;}function Sf(b,d){b=b|0;d=d|0;c[b>>2]=c[d>>2];a[b+4>>0]=a[d+4>>0]|0;Wf(b+8|0,d+8|0);Wf(b+20|0,d+20|0);Xf(b+32|0,d+32|0);return;}function Tf(a){a=a|0;c[a>>2]=4872;ud(a+8|0);le(a);return;}function Uf(a){a=a|0;Tf(a);jp(a);return;}function Vf(a,b){a=a|0;b=b|0;return Dg(a+8|0,c[a+4>>2]|0,b)|0;}function Wf(a,b){a=a|0;b=b|0;var d=0,e=0;c[a>>2]=0;c[a+4>>2]=0;c[a+8>>2]=0;d=b+4|0;e=(c[d>>2]|0)-(c[b>>2]|0)|0;if(e|0){Yf(a,e);Zf(a,c[b>>2]|0,c[d>>2]|0,e);}return;}function Xf(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0;d=V;V=V+32|0;e=d+24|0;f=d+16|0;h=d+8|0;g=d;c[a>>2]=0;c[a+4>>2]=0;c[a+8>>2]=0;c[a+12>>2]=0;c[a+16>>2]=0;c[a+20>>2]=0;zg(h,b);Ag(g,b);c[f>>2]=c[h>>2];c[f+4>>2]=c[h+4>>2];c[e>>2]=c[g>>2];c[e+4>>2]=c[g+4>>2];cg(a,f,e,0);V=d;return;}function Yf(a,b){a=a|0;b=b|0;var d=0;if(($f(a)|0)>>>0<b>>>0)cr(a);else{d=eq(b)|0;c[a+4>>2]=d;c[a>>2]=d;c[a+8>>2]=d+b;return;}}function Zf(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,g=0;g=V;V=V+16|0;f=g;ag(f,a,e);e=f+4|0;a=d-b|0;if((a|0)>0){ur(c[e>>2]|0,b|0,a|0)|0;c[e>>2]=(c[e>>2]|0)+a;}bg(f);V=g;return;}function _f(a){a=a|0;var b=0,d=0;b=c[a>>2]|0;d=b;if(b|0){c[a+4>>2]=d;Da(b,(c[a+8>>2]|0)-d|0);}return;}function $f(a){a=a|0;return 2147483647;}function ag(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=b;b=c[b+4>>2]|0;c[a+4>>2]=b;c[a+8>>2]=b+d;return;}function bg(a){a=a|0;c[(c[a>>2]|0)+4>>2]=c[a+4>>2];return;}function cg(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0;q=V;V=V+96|0;p=q+80|0;m=q+64|0;j=q+48|0;k=q+40|0;l=q+8|0;i=q;n=q+32|0;o=q+16|0;h=b;g=c[h>>2]|0;h=c[h+4>>2]|0;f=d;d=c[f>>2]|0;f=c[f+4>>2]|0;e=g;if((f|0)==(h|0))h=0;else h=((f-(c[d>>2]|0)|0)/44|0)+((d-g>>2)*93|0)+((h-(c[g>>2]|0)|0)/-44|0)|0;d=(c[a+8>>2]|0)-(c[a+4>>2]|0)|0;d=((d|0)==0?0:((d>>2)*93|0)+-1|0)-((c[a+20>>2]|0)+(c[a+16>>2]|0))|0;if(h>>>0>d>>>0)eg(a,h-d|0);fg(k,a);fg(i,a);f=i;d=c[f>>2]|0;f=c[f+4>>2]|0;g=l;c[g>>2]=d;c[g+4>>2]=f;g=d;if(h|0){d=((f-(c[d>>2]|0)|0)/44|0)+h|0;if((d|0)>0){i=(d>>>0)/93|0;h=g+(i<<2)|0;c[l>>2]=h;d=(c[h>>2]|0)+((d-(i*93|0)|0)*44|0)|0;}else{d=92-d|0;i=g+(((d|0)/-93|0)<<2)|0;c[l>>2]=i;d=(c[i>>2]|0)+((92-((d|0)%93|0)|0)*44|0)|0;}c[l+4>>2]=d;}c[m>>2]=c[k>>2];c[m+4>>2]=c[k+4>>2];c[p>>2]=c[l>>2];c[p+4>>2]=c[l+4>>2];gg(j,m,p);hg(p,j);ig(m,j);if(jg(p,m)|0){g=o+4|0;h=b+4|0;do{kg(n,p);lg(o,a,n);d=c[o>>2]|0;if((d|0)!=(c[g>>2]|0)){f=c[h>>2]|0;do{Wc(d,f);d=(c[o>>2]|0)+44|0;c[o>>2]=d;f=f+44|0;c[h>>2]=f;if((f-(c[e>>2]|0)|0)==4092){e=e+4|0;c[b>>2]=e;f=c[e>>2]|0;c[h>>2]=f;}}while((d|0)!=(c[g>>2]|0));}mg(o);ng(p)|0;}while(jg(p,m)|0);}V=q;return;}function dg(a){a=a|0;var b=0,d=0,e=0;b=c[a+4>>2]|0;d=a+8|0;e=c[d>>2]|0;if((e|0)!=(b|0))c[d>>2]=e+(~((e+-4-b|0)>>>2)<<2);b=c[a>>2]|0;if(b|0)Da(b,(c[a+12>>2]|0)-b|0);return;}function eg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;B=V;V=V+64|0;v=B+52|0;u=B+48|0;w=B+28|0;x=B+24|0;y=B+20|0;p=B;z=a+8|0;d=c[z>>2]|0;A=a+4|0;j=c[A>>2]|0;s=((d|0)==(j|0)&1)+b|0;h=(s>>>0)/93|0;h=h+((s-(h*93|0)|0)!=0&1)|0;s=a+16|0;e=c[s>>2]|0;i=(e>>>0)/93|0;r=h>>>0<i>>>0?h:i;b=h-r|0;g=d;a:do if(!b){c[s>>2]=(q(r,-93)|0)+e;if(r|0){i=a+12|0;k=a+12|0;l=w+4|0;m=w+8|0;n=w+12|0;b=r;e=j;while(1){h=c[e>>2]|0;g=e+4|0;c[A>>2]=g;t=c[i>>2]|0;e=t;do if((d|0)==(t|0)){t=c[a>>2]|0;d=t;if(g>>>0<=t>>>0){d=e-d|0;d=(d|0)==0?1:d>>1;qg(w,d,d>>>2,k);c[x>>2]=c[A>>2];c[y>>2]=c[z>>2];c[u>>2]=c[x>>2];c[v>>2]=c[y>>2];ug(w,u,v);d=c[a>>2]|0;c[a>>2]=c[w>>2];c[w>>2]=d;d=c[A>>2]|0;c[A>>2]=c[l>>2];c[l>>2]=d;d=c[z>>2]|0;c[z>>2]=c[m>>2];c[m>>2]=d;d=c[i>>2]|0;c[i>>2]=c[n>>2];c[n>>2]=d;tg(w);d=c[z>>2]|0;break;}t=g;d=((t-d>>2)+1|0)/-2|0;f=g+(d<<2)|0;e=e-t|0;if(!e)d=f;else{vr(f|0,g|0,e|0)|0;d=(c[A>>2]|0)+(d<<2)|0;}t=f+(e>>2<<2)|0;c[z>>2]=t;c[A>>2]=d;d=t;}while(0);c[d>>2]=h;d=(c[z>>2]|0)+4|0;c[z>>2]=d;b=b+-1|0;if(!b)break a;e=c[A>>2]|0;}}}else{t=a+12|0;e=c[t>>2]|0;f=e-(c[a>>2]|0)|0;d=g-j>>2;if(b>>>0>((f>>2)-d|0)>>>0){o=f>>1;n=d+b|0;qg(p,o>>>0<n>>>0?n:o,d-r|0,a+12|0);do{c[v>>2]=eq(4092)|0;rg(p,v);b=b+-1|0;}while((b|0)!=0);if(!r)d=c[A>>2]|0;else{i=p+8|0;j=p+12|0;k=p+4|0;l=p+16|0;m=w+4|0;n=w+8|0;o=w+12|0;h=r;b=c[i>>2]|0;d=c[A>>2]|0;do{g=c[j>>2]|0;e=g;do if((b|0)==(g|0)){f=c[k>>2]|0;g=c[p>>2]|0;b=g;if(f>>>0<=g>>>0){b=e-b|0;b=(b|0)==0?1:b>>1;qg(w,b,b>>>2,c[l>>2]|0);c[x>>2]=c[k>>2];c[y>>2]=c[i>>2];c[u>>2]=c[x>>2];c[v>>2]=c[y>>2];ug(w,u,v);b=c[p>>2]|0;c[p>>2]=c[w>>2];c[w>>2]=b;b=c[k>>2]|0;c[k>>2]=c[m>>2];c[m>>2]=b;b=c[i>>2]|0;c[i>>2]=c[n>>2];c[n>>2]=b;b=c[j>>2]|0;c[j>>2]=c[o>>2];c[o>>2]=b;tg(w);b=c[i>>2]|0;break;}C=f;b=((C-b>>2)+1|0)/-2|0;g=f+(b<<2)|0;e=e-C|0;if(!e)b=g;else{vr(g|0,f|0,e|0)|0;b=(c[k>>2]|0)+(b<<2)|0;}C=g+(e>>2<<2)|0;c[i>>2]=C;c[k>>2]=b;b=C;}while(0);c[b>>2]=c[d>>2];b=(c[i>>2]|0)+4|0;c[i>>2]=b;d=(c[A>>2]|0)+4|0;c[A>>2]=d;h=h+-1|0;}while((h|0)!=0);}b=c[z>>2]|0;if((b|0)!=(d|0)){do{b=b+-4|0;sg(p,b);d=c[A>>2]|0;}while((b|0)!=(d|0));b=c[z>>2]|0;}C=c[a>>2]|0;c[a>>2]=c[p>>2];c[p>>2]=C;C=p+4|0;c[A>>2]=c[C>>2];c[C>>2]=d;C=p+8|0;c[z>>2]=c[C>>2];c[C>>2]=b;C=p+12|0;A=c[t>>2]|0;c[t>>2]=c[C>>2];c[C>>2]=A;c[s>>2]=(c[s>>2]|0)+(q(r,-93)|0);tg(p);break;}else{b:do if((e|0)==(g|0))k=18;else{while(1){c[v>>2]=eq(4092)|0;og(a,v);b=b+-1|0;if(!b)break;if((c[t>>2]|0)==(c[z>>2]|0)){k=18;break b;}}d=r;b=c[s>>2]|0;}while(0);if((k|0)==18){e=~(h>>>0>i>>>0?i:h);d=b;do{c[v>>2]=eq(4092)|0;pg(a,v);d=d+-1|0;f=(((c[z>>2]|0)-(c[A>>2]|0)|0)==4?92:93)+(c[s>>2]|0)|0;c[s>>2]=f;}while((d|0)!=0);d=b+-1-e|0;b=f;}c[s>>2]=b+(q(d,-93)|0);if(!d)break;i=a+12|0;j=w+4|0;k=w+8|0;l=w+12|0;b=c[z>>2]|0;do{g=c[A>>2]|0;h=c[g>>2]|0;g=g+4|0;c[A>>2]=g;C=c[t>>2]|0;e=C;do if((b|0)==(C|0)){C=c[a>>2]|0;b=C;if(g>>>0<=C>>>0){b=e-b|0;b=(b|0)==0?1:b>>1;qg(w,b,b>>>2,i);c[x>>2]=c[A>>2];c[y>>2]=c[z>>2];c[u>>2]=c[x>>2];c[v>>2]=c[y>>2];ug(w,u,v);b=c[a>>2]|0;c[a>>2]=c[w>>2];c[w>>2]=b;b=c[A>>2]|0;c[A>>2]=c[j>>2];c[j>>2]=b;b=c[z>>2]|0;c[z>>2]=c[k>>2];c[k>>2]=b;b=c[t>>2]|0;c[t>>2]=c[l>>2];c[l>>2]=b;tg(w);b=c[z>>2]|0;break;}C=g;b=((C-b>>2)+1|0)/-2|0;f=g+(b<<2)|0;e=e-C|0;if(!e)b=f;else{vr(f|0,g|0,e|0)|0;b=(c[A>>2]|0)+(b<<2)|0;}C=f+(e>>2<<2)|0;c[z>>2]=C;c[A>>2]=b;b=C;}while(0);c[b>>2]=h;b=(c[z>>2]|0)+4|0;c[z>>2]=b;d=d+-1|0;}while((d|0)!=0);}}while(0);V=B;return;}function fg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;d=(c[b+16>>2]|0)+(c[b+20>>2]|0)|0;g=c[b+4>>2]|0;e=(d>>>0)/93|0;f=g+(e<<2)|0;if((c[b+8>>2]|0)==(g|0))b=0;else b=(c[f>>2]|0)+((d-(e*93|0)|0)*44|0)|0;c[a>>2]=f;c[a+4>>2]=b;return;}function gg(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;f=b;b=c[f+4>>2]|0;e=a;c[e>>2]=c[f>>2];c[e+4>>2]=b;e=d;b=c[e+4>>2]|0;d=a+8|0;c[d>>2]=c[e>>2];c[d+4>>2]=b;return;}function hg(a,b){a=a|0;b=b|0;c[a>>2]=c[b>>2];c[a+4>>2]=c[b+4>>2];c[a+8>>2]=c[b+8>>2];c[a+12>>2]=c[b+12>>2];return;}function ig(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0;d=V;V=V+32|0;e=d+24|0;f=d+16|0;h=d+8|0;g=d;i=b+8|0;j=c[i>>2]|0;i=c[i+4>>2]|0;b=h;c[b>>2]=j;c[b+4>>2]=i;b=g;c[b>>2]=j;c[b+4>>2]=i;c[f>>2]=c[h>>2];c[f+4>>2]=c[h+4>>2];c[e>>2]=c[g>>2];c[e+4>>2]=c[g+4>>2];gg(a,f,e);V=d;return;}function jg(a,b){a=a|0;b=b|0;return(xg(a,b)|0)^1|0;}function kg(a,b){a=a|0;b=b|0;var d=0,e=0;d=c[b>>2]|0;e=c[b+4>>2]|0;if((d|0)==(c[b+8>>2]|0))yg(a,e,c[b+12>>2]|0);else yg(a,e,(c[d>>2]|0)+4092|0);return;}function lg(a,b,d){a=a|0;b=b|0;d=d|0;var e=0;e=c[d>>2]|0;c[a>>2]=e;c[a+4>>2]=c[d+4>>2];c[a+8>>2]=e;c[a+12>>2]=b;return;}function mg(a){a=a|0;var b=0;b=(c[a+12>>2]|0)+20|0;c[b>>2]=(c[b>>2]|0)+(((c[a>>2]|0)-(c[a+8>>2]|0)|0)/44|0);return;}function ng(a){a=a|0;var b=0,d=0,e=0;b=c[a>>2]|0;d=a+8|0;if((b|0)==(c[d>>2]|0)){e=d;b=c[e+4>>2]|0;d=a;c[d>>2]=c[e>>2];c[d+4>>2]=b;}else{e=b+4|0;c[a>>2]=e;c[a+4>>2]=c[e>>2];}return a|0;}function og(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0;p=V;V=V+48|0;f=p+32|0;e=p+28|0;i=p+8|0;j=p+4|0;k=p;o=a+8|0;d=c[o>>2]|0;l=a+12|0;n=c[l>>2]|0;g=n;do if((d|0)==(n|0)){n=a+4|0;m=c[n>>2]|0;q=c[a>>2]|0;h=q;if(m>>>0<=q>>>0){d=g-h|0;d=(d|0)==0?1:d>>1;qg(i,d,d>>>2,a+12|0);c[j>>2]=c[n>>2];c[k>>2]=c[o>>2];c[e>>2]=c[j>>2];c[f>>2]=c[k>>2];ug(i,e,f);d=c[a>>2]|0;c[a>>2]=c[i>>2];c[i>>2]=d;d=i+4|0;q=c[n>>2]|0;c[n>>2]=c[d>>2];c[d>>2]=q;d=i+8|0;q=c[o>>2]|0;c[o>>2]=c[d>>2];c[d>>2]=q;d=i+12|0;q=c[l>>2]|0;c[l>>2]=c[d>>2];c[d>>2]=q;tg(i);d=c[o>>2]|0;break;}f=m;e=((f-h>>2)+1|0)/-2|0;a=m+(e<<2)|0;f=d-f|0;if(!f)d=a;else{vr(a|0,m|0,f|0)|0;d=(c[n>>2]|0)+(e<<2)|0;}q=a+(f>>2<<2)|0;c[o>>2]=q;c[n>>2]=d;d=q;}while(0);c[d>>2]=c[b>>2];c[o>>2]=(c[o>>2]|0)+4;V=p;return;}function pg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0;p=V;V=V+48|0;e=p+32|0;d=p+28|0;h=p+8|0;i=p+4|0;j=p;o=a+4|0;m=c[o>>2]|0;n=c[a>>2]|0;k=n;do if((m|0)==(n|0)){n=a+8|0;l=c[n>>2]|0;g=a+12|0;q=c[g>>2]|0;f=q;if(l>>>0>=q>>>0){q=f-k|0;q=(q|0)==0?1:q>>1;qg(h,q,(q+3|0)>>>2,a+12|0);c[i>>2]=c[o>>2];c[j>>2]=c[n>>2];c[d>>2]=c[i>>2];c[e>>2]=c[j>>2];ug(h,d,e);d=c[a>>2]|0;c[a>>2]=c[h>>2];c[h>>2]=d;d=h+4|0;q=c[o>>2]|0;c[o>>2]=c[d>>2];c[d>>2]=q;d=h+8|0;q=c[n>>2]|0;c[n>>2]=c[d>>2];c[d>>2]=q;d=h+12|0;q=c[g>>2]|0;c[g>>2]=c[d>>2];c[d>>2]=q;tg(h);d=c[o>>2]|0;break;}e=l;a=((f-e>>2)+1|0)/2|0;f=l+(a<<2)|0;e=e-m|0;d=f+(0-(e>>2)<<2)|0;if(!e){d=f;e=f;}else{vr(d|0,m|0,e|0)|0;e=(c[n>>2]|0)+(a<<2)|0;}c[o>>2]=d;c[n>>2]=e;}else d=m;while(0);c[d+-4>>2]=c[b>>2];c[o>>2]=(c[o>>2]|0)+-4;V=p;return;}function qg(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0;f=a+12|0;c[f>>2]=0;c[a+16>>2]=e;do if(b){if(b>>>0>1073741823){f=v(8)|0;vq(f,6723);c[f>>2]=5956;x(f|0,3928,123);}else{e=eq(b<<2)|0;break;}}else e=0;while(0);c[a>>2]=e;d=e+(d<<2)|0;c[a+8>>2]=d;c[a+4>>2]=d;c[f>>2]=e+(b<<2);return;}function rg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0;p=V;V=V+48|0;f=p+32|0;e=p+28|0;i=p+8|0;j=p+4|0;k=p;o=a+8|0;d=c[o>>2]|0;l=a+12|0;n=c[l>>2]|0;g=n;do if((d|0)==(n|0)){n=a+4|0;m=c[n>>2]|0;q=c[a>>2]|0;h=q;if(m>>>0<=q>>>0){d=g-h|0;d=(d|0)==0?1:d>>1;qg(i,d,d>>>2,c[a+16>>2]|0);c[j>>2]=c[n>>2];c[k>>2]=c[o>>2];c[e>>2]=c[j>>2];c[f>>2]=c[k>>2];ug(i,e,f);d=c[a>>2]|0;c[a>>2]=c[i>>2];c[i>>2]=d;d=i+4|0;q=c[n>>2]|0;c[n>>2]=c[d>>2];c[d>>2]=q;d=i+8|0;q=c[o>>2]|0;c[o>>2]=c[d>>2];c[d>>2]=q;d=i+12|0;q=c[l>>2]|0;c[l>>2]=c[d>>2];c[d>>2]=q;tg(i);d=c[o>>2]|0;break;}f=m;e=((f-h>>2)+1|0)/-2|0;a=m+(e<<2)|0;f=d-f|0;if(!f)d=a;else{vr(a|0,m|0,f|0)|0;d=(c[n>>2]|0)+(e<<2)|0;}q=a+(f>>2<<2)|0;c[o>>2]=q;c[n>>2]=d;d=q;}while(0);c[d>>2]=c[b>>2];c[o>>2]=(c[o>>2]|0)+4;V=p;return;}function sg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0;p=V;V=V+48|0;e=p+32|0;d=p+28|0;h=p+8|0;i=p+4|0;j=p;o=a+4|0;m=c[o>>2]|0;n=c[a>>2]|0;k=n;do if((m|0)==(n|0)){n=a+8|0;l=c[n>>2]|0;g=a+12|0;q=c[g>>2]|0;f=q;if(l>>>0>=q>>>0){q=f-k|0;q=(q|0)==0?1:q>>1;qg(h,q,(q+3|0)>>>2,c[a+16>>2]|0);c[i>>2]=c[o>>2];c[j>>2]=c[n>>2];c[d>>2]=c[i>>2];c[e>>2]=c[j>>2];ug(h,d,e);d=c[a>>2]|0;c[a>>2]=c[h>>2];c[h>>2]=d;d=h+4|0;q=c[o>>2]|0;c[o>>2]=c[d>>2];c[d>>2]=q;d=h+8|0;q=c[n>>2]|0;c[n>>2]=c[d>>2];c[d>>2]=q;d=h+12|0;q=c[g>>2]|0;c[g>>2]=c[d>>2];c[d>>2]=q;tg(h);d=c[o>>2]|0;break;}e=l;a=((f-e>>2)+1|0)/2|0;f=l+(a<<2)|0;e=e-m|0;d=f+(0-(e>>2)<<2)|0;if(!e){d=f;e=f;}else{vr(d|0,m|0,e|0)|0;e=(c[n>>2]|0)+(a<<2)|0;}c[o>>2]=d;c[n>>2]=e;}else d=m;while(0);c[d+-4>>2]=c[b>>2];c[o>>2]=(c[o>>2]|0)+-4;V=p;return;}function tg(a){a=a|0;var b=0,d=0,e=0;b=c[a+4>>2]|0;d=a+8|0;e=c[d>>2]|0;if((e|0)!=(b|0))c[d>>2]=e+(~((e+-4-b|0)>>>2)<<2);b=c[a>>2]|0;if(b|0)Da(b,(c[a+12>>2]|0)-b|0);return;}function ug(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0;h=V;V=V+16|0;g=h;f=c[b>>2]|0;vg(g,a+8|0,(c[d>>2]|0)-f>>2);a=c[g>>2]|0;e=g+4|0;if((a|0)!=(c[e>>2]|0)){d=f;do{c[a>>2]=c[d>>2];a=(c[g>>2]|0)+4|0;c[g>>2]=a;d=d+4|0;}while((a|0)!=(c[e>>2]|0));c[b>>2]=d;}wg(g);V=h;return;}function vg(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=c[b>>2];c[a+4>>2]=(c[b>>2]|0)+(d<<2);c[a+8>>2]=b;return;}function wg(a){a=a|0;c[c[a+8>>2]>>2]=c[a>>2];return;}function xg(a,b){a=a|0;b=b|0;return(c[a+4>>2]|0)==(c[b+4>>2]|0)|0;}function yg(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=b;c[a+4>>2]=d;return;}function zg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;g=c[b+4>>2]|0;d=c[b+16>>2]|0;e=(d>>>0)/93|0;f=g+(e<<2)|0;if((c[b+8>>2]|0)==(g|0))b=0;else b=(c[f>>2]|0)+((d-(e*93|0)|0)*44|0)|0;c[a>>2]=f;c[a+4>>2]=b;return;}function Ag(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;d=(c[b+16>>2]|0)+(c[b+20>>2]|0)|0;g=c[b+4>>2]|0;e=(d>>>0)/93|0;f=g+(e<<2)|0;if((c[b+8>>2]|0)==(g|0))b=0;else b=(c[f>>2]|0)+((d-(e*93|0)|0)*44|0)|0;c[a>>2]=f;c[a+4>>2]=b;return;}function Bg(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0;i=V;V=V+16|0;e=i+8|0;g=i;Cg(e,a);fg(g,a);f=e+4|0;b=c[f>>2]|0;g=g+4|0;if((b|0)!=(c[g>>2]|0))do{Ic(b);b=(c[f>>2]|0)+44|0;c[f>>2]=b;d=c[e>>2]|0;if((b-(c[d>>2]|0)|0)==4092){b=d+4|0;c[e>>2]=b;b=c[b>>2]|0;c[f>>2]=b;}}while((b|0)!=(c[g>>2]|0));c[a+20>>2]=0;f=a+8|0;e=a+4|0;d=c[e>>2]|0;b=(c[f>>2]|0)-d>>2;if(b>>>0>2)do{Da(c[d>>2]|0,4092);d=(c[e>>2]|0)+4|0;c[e>>2]=d;b=(c[f>>2]|0)-d>>2;}while(b>>>0>2);switch(b|0){case 1:{b=46;h=11;break;}case 2:{b=93;h=11;break;}default:{}}if((h|0)==11)c[a+16>>2]=b;V=i;return;}function Cg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;g=c[b+4>>2]|0;d=c[b+16>>2]|0;e=(d>>>0)/93|0;f=g+(e<<2)|0;if((c[b+8>>2]|0)==(g|0))b=0;else b=(c[f>>2]|0)+((d-(e*93|0)|0)*44|0)|0;c[a>>2]=f;c[a+4>>2]=b;return;}function Dg(b,e,f){b=b|0;e=e|0;f=f|0;var g=0,h=0,i=0,j=0,k=0,l=0,m=0;m=V;V=V+16|0;l=m;j=b+4|0;if(!(a[j>>0]|0)){l=De(e)|0;Ee(l,f,c[b>>2]|0);l=c[b>>2]|0;i=f+l|0;if(!l)g=0;else{g=f;h=c[b+8>>2]|0;while(1){a[h>>0]=a[g>>0]|0;g=g+1|0;if((g|0)==(i|0))break;else h=h+1|0;}g=c[b>>2]|0;}a[j>>0]=1;f=f+g|0;}else{h=c[b+20>>2]|0;g=c[b+8>>2]|0;Cg(l,b+32|0);b=b+12|0;if((g|0)!=(c[b>>2]|0)){k=l+4|0;j=g;i=h;g=c[k>>2]|0;while(1){h=d[j>>0]|0;h=Eg((Zc(e,g)|0)+h|0)|0;a[i>>0]=h;a[f>>0]=h;a[j>>0]=h;j=j+1|0;f=f+1|0;h=c[l>>2]|0;g=(c[k>>2]|0)+44|0;c[k>>2]=g;if((g-(c[h>>2]|0)|0)==4092){g=h+4|0;c[l>>2]=g;g=c[g>>2]|0;c[k>>2]=g;}if((j|0)==(c[b>>2]|0))break;else i=i+1|0;}}}V=m;return f|0;}function Eg(a){a=a|0;return a&255|0;}function Fg(a){a=a|0;pq(a);jp(a);return;}function Gg(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+4>>2]&255](a);return;}function Hg(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==11262?a+12|0:0)|0;}function Ig(a){a=a|0;Da(a,16);return;}function Jg(a,b){a=a|0;b=b|0;c[a>>2]=0;c[a+4>>2]=0;c[a+8>>2]=0;if(b|0){Yf(a,b);Lg(a,b);}return;}function Kg(a,b,d){a=a|0;b=b|0;d=d|0;c[a>>2]=0;c[a+4>>2]=0;c[a+8>>2]=0;c[a+12>>2]=0;c[a+16>>2]=0;c[a+20>>2]=0;if(b|0)Mg(a,b,d);return;}function Lg(b,d){b=b|0;d=d|0;var e=0,f=0,g=0;g=V;V=V+16|0;f=g;ag(f,b,d);d=f+4|0;b=c[d>>2]|0;e=f+8|0;if((b|0)!=(c[e>>2]|0))do{a[b>>0]=0;b=(c[d>>2]|0)+1|0;c[d>>2]=b;}while((b|0)!=(c[e>>2]|0));bg(f);V=g;return;}function Mg(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0;o=V;V=V+96|0;n=o+80|0;k=o+64|0;h=o+48|0;i=o+40|0;j=o+8|0;f=o;l=o+32|0;m=o+16|0;e=(c[a+8>>2]|0)-(c[a+4>>2]|0)|0;e=((e|0)==0?0:((e>>2)*93|0)+-1|0)-((c[a+20>>2]|0)+(c[a+16>>2]|0))|0;if(e>>>0<b>>>0)eg(a,b-e|0);fg(i,a);fg(f,a);e=c[f>>2]|0;f=c[f+4>>2]|0;g=j;c[g>>2]=e;c[g+4>>2]=f;g=e;if(b|0){e=((f-(c[e>>2]|0)|0)/44|0)+b|0;if((e|0)>0){b=(e>>>0)/93|0;g=g+(b<<2)|0;c[j>>2]=g;e=(c[g>>2]|0)+((e-(b*93|0)|0)*44|0)|0;}else{e=92-e|0;b=g+(((e|0)/-93|0)<<2)|0;c[j>>2]=b;e=(c[b>>2]|0)+((92-((e|0)%93|0)|0)*44|0)|0;}c[j+4>>2]=e;}c[k>>2]=c[i>>2];c[k+4>>2]=c[i+4>>2];c[n>>2]=c[j>>2];c[n+4>>2]=c[j+4>>2];gg(h,k,n);hg(n,h);ig(k,h);if(jg(n,k)|0){f=m+4|0;do{kg(l,n);lg(m,a,l);e=c[m>>2]|0;if((e|0)!=(c[f>>2]|0))do{Wc(e,d);e=(c[m>>2]|0)+44|0;c[m>>2]=e;}while((e|0)!=(c[f>>2]|0));mg(m);ng(n)|0;}while(jg(n,k)|0);}V=o;return;}function Ng(a){a=a|0;var b=0,d=0;Bg(a);b=c[a+4>>2]|0;d=c[a+8>>2]|0;if((b|0)!=(d|0))do{Da(c[b>>2]|0,4092);b=b+4|0;}while((b|0)!=(d|0));dg(a);return;}function Og(a,b,d){a=a|0;b=b|0;d=d|0;Md(a);c[a>>2]=4924;c[a+4>>2]=b;c[a+8>>2]=d;return;}function Pg(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=4944;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Wg(a,e);V=d;return;}function Qg(a,b){a=a|0;b=b|0;return Tg(c[a+8>>2]|0,c[a+4>>2]|0,b)|0;}function Rg(a){a=a|0;var b=0,d=0;c[a>>2]=4924;d=a+8|0;b=c[d>>2]|0;c[d>>2]=0;if(b|0){Vg(b);jp(b);}Qd(a);return;}function Sg(a){a=a|0;Rg(a);jp(a);return;}function Tg(a,b,c){a=a|0;b=b|0;c=c|0;return Ug(a+4784|0,b,Be(a,b,c)|0)|0;}function Ug(b,c,d){b=b|0;c=c|0;d=d|0;if(a[b>>0]|0){nc(c);a[b>>0]=0;}return d|0;}function Vg(a){a=a|0;ze(a);return;}function Wg(a,b){a=a|0;b=b|0;return;}function Xg(a){a=a|0;pq(a);jp(a);return;}function Yg(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+8>>2]&255](a);return;}function Zg(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==12004?a+12|0:0)|0;}function _g(a){a=a|0;Da(a,16);return;}function $g(b){b=b|0;a[b>>0]=1;return;}function ah(a,b,d){a=a|0;b=b|0;d=d|0;Md(a);c[a>>2]=4972;c[a+4>>2]=b;c[a+8>>2]=d;return;}function bh(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=4992;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Wg(a,e);V=d;return;}function ch(a,b){a=a|0;b=b|0;return fh(c[a+8>>2]|0,c[a+4>>2]|0,b)|0;}function dh(a){a=a|0;var b=0,d=0;c[a>>2]=4972;d=a+8|0;b=c[d>>2]|0;c[d>>2]=0;if(b|0){hh(b);jp(b);}Qd(a);return;}function eh(a){a=a|0;dh(a);jp(a);return;}function fh(a,b,c){a=a|0;b=b|0;c=c|0;return gh(a+4784|0,b,Be(a,b,c)|0)|0;}function gh(a,b,c){a=a|0;b=b|0;c=c|0;return Ug(a+328|0,b,qf(a,b,c)|0)|0;}function hh(a){a=a|0;ih(a+4784|0);ze(a);return;}function ih(a){a=a|0;of(a);return;}function jh(a){a=a|0;pq(a);jp(a);return;}function kh(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+8>>2]&255](a);return;}function lh(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==12827?a+12|0:0)|0;}function mh(a){a=a|0;Da(a,16);return;}function 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ri(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+8>>2]&255](a);return;}function si(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==15450?a+12|0:0)|0;}function ti(a){a=a|0;Da(a,16);return;}function ui(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;e=j+12|0;f=j;b=j+8|0;h=eq(180)|0;wi(h,c[a+4>>2]|0);g=a+8|0;c[b>>2]=0;c[e>>2]=c[b>>2];xi(f,h,e);h=a+12|0;b=c[h>>2]|0;i=a+16|0;do if(b>>>0>=(c[i>>2]|0)>>>0){b=(b-(c[g>>2]|0)>>3)+1|0;d=ee(g)|0;if(d>>>0<b>>>0)cr(g);else{k=c[g>>2]|0;l=(c[i>>2]|0)-k|0;i=l>>2;be(e,l>>3>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,(c[h>>2]|0)-k>>3,a+16|0);i=e+8|0;h=c[i>>2]|0;c[h>>2]=c[f>>2];a=f+4|0;c[h+4>>2]=c[a>>2];c[f>>2]=0;c[a>>2]=0;c[i>>2]=h+8;ce(g,e);de(e);break;}}else{$d(e,g,1);l=e+4|0;k=c[l>>2]|0;c[k>>2]=c[f>>2];i=f+4|0;c[k+4>>2]=c[i>>2];c[f>>2]=0;c[i>>2]=0;c[l>>2]=k+8;ae(e);}while(0);Sd(f);V=j;return;}function vi(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;e=j+12|0;f=j;b=j+8|0;h=eq(180)|0;Ui(h,c[a+4>>2]|0);g=a+8|0;c[b>>2]=0;c[e>>2]=c[b>>2];Vi(f,h,e);h=a+12|0;b=c[h>>2]|0;i=a+16|0;do if(b>>>0>=(c[i>>2]|0)>>>0){b=(b-(c[g>>2]|0)>>3)+1|0;d=ee(g)|0;if(d>>>0<b>>>0)cr(g);else{k=c[g>>2]|0;l=(c[i>>2]|0)-k|0;i=l>>2;be(e,l>>3>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,(c[h>>2]|0)-k>>3,a+16|0);i=e+8|0;h=c[i>>2]|0;c[h>>2]=c[f>>2];a=f+4|0;c[h+4>>2]=c[a>>2];c[f>>2]=0;c[a>>2]=0;c[i>>2]=h+8;ce(g,e);de(e);break;}}else{$d(e,g,1);l=e+4|0;k=c[l>>2]|0;c[k>>2]=c[f>>2];i=f+4|0;c[k+4>>2]=c[i>>2];c[f>>2]=0;c[i>>2]=0;c[l>>2]=k+8;ae(e);}while(0);Sd(f);V=j;return;}function wi(a,b){a=a|0;b=b|0;fe(a);c[a>>2]=5220;c[a+4>>2]=b;yi(a+8|0);return;}function xi(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=5244;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Xe(a,e);V=d;return;}function yi(b){b=b|0;xe(b,32,1,8,0);mc(b+80|0,32,1,8,0);a[b+160>>0]=0;a[b+161>>0]=0;Ci(b+164|0);return;}function zi(a){a=a|0;c[a>>2]=5220;Di(a+8|0);le(a);return;}function Ai(a){a=a|0;zi(a);jp(a);return;}function Bi(a,b){a=a|0;b=b|0;return Ei(a+8|0,c[a+4>>2]|0,b)|0;}function Ci(b){b=b|0;a[b+4>>0]=0;return;}function Di(a){a=a|0;qc(a+80|0);ye(a);return;}function Ei(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0;h=V;V=V+16|0;f=h;if(!(a[b+161>>0]|0))oc(b+80|0);g=b+164|0;if(Fi(g)|0){d=Gi(b+80|0,d,c[g>>2]|0,0)|0;c[f>>2]=d;Se(d,e);}else{Ii(Hi(d)|0,e,4);c[f>>2]=Ne(e)|0;}Ji(g,f);V=h;return e+4|0;}function Fi(b){b=b|0;return(a[b+4>>0]|0)!=0|0;}function Gi(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;d=(Ki(a,b,(c[a+36>>2]|0)+(e*44|0)|0)|0)+d|0;b=c[a+24>>2]|0;if((d|0)<0)return d+b|0;else return d-(d>>>0<b>>>0?0:b)|0;return 0;}function Hi(a){a=a|0;return c[a>>2]|0;}function Ii(b,c,d){b=b|0;c=c|0;d=d|0;var e=0;if((d|0)>0){e=0;do{a[c+e>>0]=oi(b)|0;e=e+1|0;}while((e|0)!=(d|0));}return;}function Ji(b,d){b=b|0;d=d|0;var e=0;e=b+4|0;if(!(a[e>>0]|0))a[e>>0]=1;c[b>>2]=c[d>>2];return;}function Ki(a,b,d){a=a|0;b=b|0;d=d|0;var e=0;d=Li(b,d)|0;c[a>>2]=d;do if(d){if(d>>>0>=32){d=c[a+28>>2]|0;break;}e=c[a+12>>2]|0;if(d>>>0>e>>>0){e=d-e|0;d=Li(b,(c[a+68>>2]|0)+((d+-1|0)*44|0)|0)|0;e=d<<e|(Mi(b,e)|0);}else e=Li(b,(c[a+68>>2]|0)+((d+-1|0)*44|0)|0)|0;d=c[a>>2]|0;if((e|0)<(1<<d+-1|0)){d=e+1+(-1<<d)|0;break;}else{d=e+1|0;break;}}else d=Ni(b,a+48|0)|0;while(0);return d|0;}function Li(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0;n=a+8|0;m=c[n>>2]|0;f=c[b+16>>2]|0;if(f){e=a+4|0;d=c[e>>2]|0;l=m>>>15;c[n>>2]=l;j=(d>>>0)/(l>>>0)|0;i=j>>>(c[b+40>>2]|0);g=c[f+(i<<2)>>2]|0;i=(c[f+(i+1<<2)>>2]|0)+1|0;h=g+1|0;k=c[b+8>>2]|0;if(i>>>0>h>>>0){f=g;g=i;do{h=(g+f|0)>>>1;i=(c[k+(h<<2)>>2]|0)>>>0>j>>>0;f=i?f:h;g=i?h:g;h=f+1|0;}while(g>>>0>h>>>0);g=f;}f=q(c[k+(g<<2)>>2]|0,l)|0;if((g|0)==(c[b+32>>2]|0))h=m;else h=q(c[k+(h<<2)>>2]|0,l)|0;}else{k=m>>>15;c[n>>2]=k;i=c[b>>2]|0;l=c[b+8>>2]|0;e=a+4|0;d=c[e>>2]|0;j=i>>>1;f=0;h=m;g=0;do{o=q(c[l+(j<<2)>>2]|0,k)|0;m=o>>>0>d>>>0;h=m?o:h;f=m?f:o;g=m?g:j;i=m?j:i;j=(g+i|0)>>>1;}while((j|0)!=(g|0));}c[e>>2]=d-f;o=h-f|0;c[n>>2]=o;if(o>>>0<16777216)Oi(a);n=(c[b+12>>2]|0)+(g<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=b+28|0;o=(c[n>>2]|0)+-1|0;c[n>>2]=o;if(!o)Xc(b);return g|0;}function Mi(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;if(b>>>0>19){d=(Pi(a)|0)&65535;return(Mi(a,b+-16|0)|0)<<16|d|0;}e=a+4|0;f=c[e>>2]|0;g=a+8|0;d=(c[g>>2]|0)>>>b;c[g>>2]=d;b=(f>>>0)/(d>>>0)|0;c[e>>2]=f-(q(b,d)|0);if(d>>>0<16777216)Oi(a);return b|0;}function Ni(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0;e=a+8|0;f=c[e>>2]|0;d=q(f>>>13,c[b+8>>2]|0)|0;g=a+4|0;h=c[g>>2]|0;i=h>>>0>=d>>>0;if(i){c[g>>2]=h-d;d=f-d|0;c[e>>2]=d;}else{c[e>>2]=d;h=b+12|0;c[h>>2]=(c[h>>2]|0)+1;}if(d>>>0<16777216)Oi(a);h=b+4|0;a=(c[h>>2]|0)+-1|0;c[h>>2]=a;if(!a)cd(b);return i&1|0;}function Oi(a){a=a|0;var b=0,d=0,e=0,f=0;b=a+4|0;d=a+8|0;e=c[b>>2]|0;do{e=e<<8|(oi(c[a>>2]|0)|0)&255;c[b>>2]=e;f=c[d>>2]<<8;c[d>>2]=f;}while(f>>>0<16777216);return;}function Pi(a){a=a|0;var b=0,d=0,e=0,f=0;d=a+4|0;f=c[d>>2]|0;b=a+8|0;e=(c[b>>2]|0)>>>16;c[b>>2]=e;b=(f>>>0)/(e>>>0)|0;c[d>>2]=f-(q(b,e)|0);Oi(a);return b&65535|0;}function Qi(a){a=a|0;pq(a);jp(a);return;}function Ri(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+4>>2]&255](a);return;}function Si(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==15904?a+12|0:0)|0;}function Ti(a){a=a|0;Da(a,16);return;}function Ui(a,b){a=a|0;b=b|0;fe(a);c[a>>2]=5272;c[a+4>>2]=b;Wi(a+8|0);return;}function Vi(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=5296;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Xe(a,e);V=d;return;}function Wi(b){b=b|0;xe(b,32,1,8,0);mc(b+80|0,32,1,8,0);a[b+160>>0]=0;a[b+161>>0]=0;_i(b+164|0);return;}function Xi(a){a=a|0;c[a>>2]=5272;$i(a+8|0);le(a);return;}function Yi(a){a=a|0;Xi(a);jp(a);return;}function Zi(a,b){a=a|0;b=b|0;return aj(a+8|0,c[a+4>>2]|0,b)|0;}function _i(b){b=b|0;a[b+4>>0]=0;return;}function $i(a){a=a|0;qc(a+80|0);ye(a);return;}function aj(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0;h=V;V=V+16|0;f=h;if(!(a[b+161>>0]|0))oc(b+80|0);g=b+164|0;if(bj(g)|0){d=Gi(b+80|0,d,c[g>>2]|0,0)|0;c[f>>2]=d;We(d,e);}else{Ii(Hi(d)|0,e,4);c[f>>2]=Re(e)|0;}cj(g,f);V=h;return e+4|0;}function bj(b){b=b|0;return(a[b+4>>0]|0)!=0|0;}function cj(b,d){b=b|0;d=d|0;var e=0;e=b+4|0;if(!(a[e>>0]|0))a[e>>0]=1;c[b>>2]=c[d>>2];return;}function dj(a){a=a|0;pq(a);jp(a);return;}function ej(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+4>>2]&255](a);return;}function fj(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==16402?a+12|0:0)|0;}function gj(a){a=a|0;Da(a,16);return;}function hj(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;e=j+12|0;f=j;b=j+8|0;h=eq(172)|0;jj(h,c[a+4>>2]|0);g=a+8|0;c[b>>2]=0;c[e>>2]=c[b>>2];kj(f,h,e);h=a+12|0;b=c[h>>2]|0;i=a+16|0;do if(b>>>0>=(c[i>>2]|0)>>>0){b=(b-(c[g>>2]|0)>>3)+1|0;d=ee(g)|0;if(d>>>0<b>>>0)cr(g);else{k=c[g>>2]|0;l=(c[i>>2]|0)-k|0;i=l>>2;be(e,l>>3>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,(c[h>>2]|0)-k>>3,a+16|0);i=e+8|0;h=c[i>>2]|0;c[h>>2]=c[f>>2];a=f+4|0;c[h+4>>2]=c[a>>2];c[f>>2]=0;c[a>>2]=0;c[i>>2]=h+8;ce(g,e);de(e);break;}}else{$d(e,g,1);l=e+4|0;k=c[l>>2]|0;c[k>>2]=c[f>>2];i=f+4|0;c[k+4>>2]=c[i>>2];c[f>>2]=0;c[i>>2]=0;c[l>>2]=k+8;ae(e);}while(0);Sd(f);V=j;return;}function ij(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;e=j+12|0;f=j;b=j+8|0;h=eq(176)|0;Aj(h,c[a+4>>2]|0);g=a+8|0;c[b>>2]=0;c[e>>2]=c[b>>2];Bj(f,h,e);h=a+12|0;b=c[h>>2]|0;i=a+16|0;do if(b>>>0>=(c[i>>2]|0)>>>0){b=(b-(c[g>>2]|0)>>3)+1|0;d=ee(g)|0;if(d>>>0<b>>>0)cr(g);else{k=c[g>>2]|0;l=(c[i>>2]|0)-k|0;i=l>>2;be(e,l>>3>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,(c[h>>2]|0)-k>>3,a+16|0);i=e+8|0;h=c[i>>2]|0;c[h>>2]=c[f>>2];a=f+4|0;c[h+4>>2]=c[a>>2];c[f>>2]=0;c[a>>2]=0;c[i>>2]=h+8;ce(g,e);de(e);break;}}else{$d(e,g,1);l=e+4|0;k=c[l>>2]|0;c[k>>2]=c[f>>2];i=f+4|0;c[k+4>>2]=c[i>>2];c[f>>2]=0;c[i>>2]=0;c[l>>2]=k+8;ae(e);}while(0);Sd(f);V=j;return;}function jj(a,b){a=a|0;b=b|0;fe(a);c[a>>2]=5324;c[a+4>>2]=b;lj(a+8|0);return;}function kj(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=5348;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Xe(a,e);V=d;return;}function lj(b){b=b|0;xe(b,8,1,8,0);mc(b+80|0,8,1,8,0);a[b+160>>0]=0;a[b+161>>0]=0;pj(b+162|0);return;}function mj(a){a=a|0;c[a>>2]=5324;qj(a+8|0);le(a);return;}function nj(a){a=a|0;mj(a);jp(a);return;}function oj(a,b){a=a|0;b=b|0;return rj(a+8|0,c[a+4>>2]|0,b)|0;}function pj(b){b=b|0;a[b+1>>0]=0;return;}function qj(a){a=a|0;qc(a+80|0);ye(a);return;}function rj(b,c,d){b=b|0;c=c|0;d=d|0;var e=0,f=0,g=0;g=V;V=V+16|0;e=g;if(!(a[b+161>>0]|0))oc(b+80|0);f=b+162|0;if(sj(f)|0){c=(Gi(b+80|0,c,a[f>>0]|0,0)|0)&255;a[e>>0]=c;tj(c,d);}else{Ii(Hi(c)|0,d,1);a[e>>0]=uj(d)|0;}vj(f,e);V=g;return d+1|0;}function sj(b){b=b|0;return(a[b+1>>0]|0)!=0|0;}function tj(b,c){b=b|0;c=c|0;a[c>>0]=b;return;}function uj(b){b=b|0;return a[b>>0]|0;}function vj(b,c){b=b|0;c=c|0;var d=0;d=b+1|0;if(!(a[d>>0]|0))a[d>>0]=1;a[b>>0]=a[c>>0]|0;return;}function wj(a){a=a|0;pq(a);jp(a);return;}function xj(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+4>>2]&255](a);return;}function yj(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==16900?a+12|0:0)|0;}function zj(a){a=a|0;Da(a,16);return;}function Aj(a,b){a=a|0;b=b|0;fe(a);c[a>>2]=5376;c[a+4>>2]=b;Cj(a+8|0);return;}function Bj(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=5400;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Xe(a,e);V=d;return;}function Cj(b){b=b|0;xe(b,16,1,8,0);mc(b+80|0,16,1,8,0);a[b+160>>0]=0;a[b+161>>0]=0;Gj(b+162|0);return;}function Dj(a){a=a|0;c[a>>2]=5376;Hj(a+8|0);le(a);return;}function Ej(a){a=a|0;Dj(a);jp(a);return;}function Fj(a,b){a=a|0;b=b|0;return Ij(a+8|0,c[a+4>>2]|0,b)|0;}function Gj(b){b=b|0;a[b+2>>0]=0;return;}function Hj(a){a=a|0;qc(a+80|0);ye(a);return;}function Ij(c,d,e){c=c|0;d=d|0;e=e|0;var f=0,g=0,h=0;h=V;V=V+16|0;f=h;if(!(a[c+161>>0]|0))oc(c+80|0);g=c+162|0;if(Jj(g)|0){d=(Gi(c+80|0,d,b[g>>1]|0,0)|0)&65535;b[f>>1]=d;Kj(d,e);}else{Ii(Hi(d)|0,e,2);b[f>>1]=Lj(e)|0;}Mj(g,f);V=h;return e+2|0;}function Jj(b){b=b|0;return(a[b+2>>0]|0)!=0|0;}function Kj(a,b){a=a|0;b=b|0;Te(a,b);return;}function Lj(a){a=a|0;return Oe(a)|0;}function Mj(c,d){c=c|0;d=d|0;var e=0;e=c+2|0;if(!(a[e>>0]|0))a[e>>0]=1;b[c>>1]=b[d>>1]|0;return;}function Nj(a){a=a|0;pq(a);jp(a);return;}function Oj(a){a=a|0;a=c[a+12>>2]|0;if(a|0)ca[c[(c[a>>2]|0)+4>>2]&255](a);return;}function Pj(a,b){a=a|0;b=b|0;return((c[b+4>>2]|0)==17398?a+12|0:0)|0;}function Qj(a){a=a|0;Da(a,16);return;}function Rj(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;e=j+12|0;f=j;b=j+8|0;h=eq(172)|0;Tj(h,c[a+4>>2]|0);g=a+8|0;c[b>>2]=0;c[e>>2]=c[b>>2];Uj(f,h,e);h=a+12|0;b=c[h>>2]|0;i=a+16|0;do if(b>>>0>=(c[i>>2]|0)>>>0){b=(b-(c[g>>2]|0)>>3)+1|0;d=ee(g)|0;if(d>>>0<b>>>0)cr(g);else{k=c[g>>2]|0;l=(c[i>>2]|0)-k|0;i=l>>2;be(e,l>>3>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,(c[h>>2]|0)-k>>3,a+16|0);i=e+8|0;h=c[i>>2]|0;c[h>>2]=c[f>>2];a=f+4|0;c[h+4>>2]=c[a>>2];c[f>>2]=0;c[a>>2]=0;c[i>>2]=h+8;ce(g,e);de(e);break;}}else{$d(e,g,1);l=e+4|0;k=c[l>>2]|0;c[k>>2]=c[f>>2];i=f+4|0;c[k+4>>2]=c[i>>2];c[f>>2]=0;c[i>>2]=0;c[l>>2]=k+8;ae(e);}while(0);Sd(f);V=j;return;}function Sj(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;j=V;V=V+32|0;e=j+12|0;f=j;b=j+8|0;h=eq(176)|0;gk(h,c[a+4>>2]|0);g=a+8|0;c[b>>2]=0;c[e>>2]=c[b>>2];hk(f,h,e);h=a+12|0;b=c[h>>2]|0;i=a+16|0;do if(b>>>0>=(c[i>>2]|0)>>>0){b=(b-(c[g>>2]|0)>>3)+1|0;d=ee(g)|0;if(d>>>0<b>>>0)cr(g);else{k=c[g>>2]|0;l=(c[i>>2]|0)-k|0;i=l>>2;be(e,l>>3>>>0<d>>>1>>>0?i>>>0<b>>>0?b:i:d,(c[h>>2]|0)-k>>3,a+16|0);i=e+8|0;h=c[i>>2]|0;c[h>>2]=c[f>>2];a=f+4|0;c[h+4>>2]=c[a>>2];c[f>>2]=0;c[a>>2]=0;c[i>>2]=h+8;ce(g,e);de(e);break;}}else{$d(e,g,1);l=e+4|0;k=c[l>>2]|0;c[k>>2]=c[f>>2];i=f+4|0;c[k+4>>2]=c[i>>2];c[f>>2]=0;c[i>>2]=0;c[l>>2]=k+8;ae(e);}while(0);Sd(f);V=j;return;}function Tj(a,b){a=a|0;b=b|0;fe(a);c[a>>2]=5428;c[a+4>>2]=b;Vj(a+8|0);return;}function Uj(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;d=V;V=V+16|0;e=d;c[a>>2]=b;f=eq(16)|0;c[f+4>>2]=0;c[f+8>>2]=0;c[f>>2]=5452;c[f+12>>2]=b;c[a+4>>2]=f;c[e>>2]=b;c[e+4>>2]=b;Xe(a,e);V=d;return;}function 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if((a[m>>0]|0)==46){l=m+1|0;if((a[l>>0]|0)!=42){c[G>>2]=l;l=uo(G)|0;m=c[G>>2]|0;break;}if(bo(a[m+2>>0]|0)|0?(F=c[G>>2]|0,(a[F+3>>0]|0)==36):0){l=F+2|0;c[i+((a[l>>0]|0)+-48<<2)>>2]=10;l=c[h+((a[l>>0]|0)+-48<<3)>>2]|0;m=F+4|0;c[G>>2]=m;break;}if(w|0){e=-1;break a;}if(y){s=(c[f>>2]|0)+(4-1)&~(4-1);l=c[s>>2]|0;c[f>>2]=s+4;}else l=0;m=(c[G>>2]|0)+2|0;c[G>>2]=m;}else l=-1;while(0);s=0;while(1){if(((a[m>>0]|0)+-65|0)>>>0>57){e=-1;break a;}n=m;m=m+1|0;c[G>>2]=m;n=a[(a[n>>0]|0)+-65+(176+(s*58|0))>>0]|0;p=n&255;if((p+-1|0)>>>0>=8)break;else s=p;}if(!(n<<24>>24)){e=-1;break;}q=(t|0)>-1;do if(n<<24>>24==19){if(q){e=-1;break a;}else x=54;}else{if(q){c[i+(t<<2)>>2]=p;q=h+(t<<3)|0;t=c[q+4>>2]|0;x=I;c[x>>2]=c[q>>2];c[x+4>>2]=t;x=54;break;}if(!y){e=0;break a;}vo(I,p,f,k);m=c[G>>2]|0;x=55;}while(0);if((x|0)==54){x=0;if(y)x=55;else l=0;}d:do if((x|0)==55){x=0;m=a[m+-1>>0]|0;m=(s|0)!=0&(m&15|0)==3?m&-33:m;n=o&-65537;t=(o&8192|0)==0?o:n;e:do switch(m|0){case 110:switch((s&255)<<24>>24){case 0:{c[c[I>>2]>>2]=e;l=0;break d;}case 1:{c[c[I>>2]>>2]=e;l=0;break d;}case 2:{l=c[I>>2]|0;c[l>>2]=e;c[l+4>>2]=((e|0)<0)<<31>>31;l=0;break d;}case 3:{b[c[I>>2]>>1]=e;l=0;break d;}case 4:{a[c[I>>2]>>0]=e;l=0;break d;}case 6:{c[c[I>>2]>>2]=e;l=0;break d;}case 7:{l=c[I>>2]|0;c[l>>2]=e;c[l+4>>2]=((e|0)<0)<<31>>31;l=0;break d;}default:{l=0;break d;}}case 112:{m=120;l=l>>>0>8?l:8;n=t|8;x=67;break;}case 88:case 120:{n=t;x=67;break;}case 111:{q=I;q=xo(c[q>>2]|0,c[q+4>>2]|0,z)|0;n=A-q|0;o=0;p=20230;l=(t&8|0)==0|(l|0)>(n|0)?l:n+1|0;n=t;x=73;break;}case 105:case 100:{n=I;m=c[n>>2]|0;n=c[n+4>>2]|0;if((n|0)<0){m=mr(0,0,m|0,n|0)|0;n=u()|0;o=I;c[o>>2]=m;c[o+4>>2]=n;o=1;p=20230;x=72;break e;}else{o=(t&2049|0)!=0&1;p=(t&2048|0)==0?(t&1|0)==0?20230:20232:20231;x=72;break e;}}case 117:{n=I;o=0;p=20230;m=c[n>>2]|0;n=c[n+4>>2]|0;x=72;break;}case 99:{a[B>>0]=c[I>>2];r=B;o=0;p=20230;q=1;m=n;l=A;break;}case 115:{s=c[I>>2]|0;s=(s|0)==0?20240:s;t=no(s,0,l)|0;K=(t|0)==0;r=s;o=0;p=20230;q=K?l:t-s|0;m=n;l=K?s+l|0:t;break;}case 67:{c[D>>2]=c[I>>2];c[C>>2]=0;c[I>>2]=D;p=-1;x=79;break;}case 83:{if(!l){zo(d,32,v,0,t);l=0;x=89;}else{p=l;x=79;}break;}case 65:case 71:case 70:case 69:case 97:case 103:case 102:case 101:{l=_[j&1](d,+g[I>>3],v,l,t,m)|0;break d;}default:{o=0;p=20230;q=l;m=t;l=A;}}while(0);f:do if((x|0)==67){q=I;q=wo(c[q>>2]|0,c[q+4>>2]|0,z,m&32)|0;p=I;p=(n&8|0)==0|(c[p>>2]|0)==0&(c[p+4>>2]|0)==0;o=p?0:2;p=p?20230:20230+(m>>>4)|0;x=73;}else if((x|0)==72){q=yo(m,n,z)|0;n=t;x=73;}else if((x|0)==79){x=0;o=c[I>>2]|0;l=0;while(1){m=c[o>>2]|0;if(!m)break;m=Ao(E,m)|0;n=(m|0)<0;if(n|m>>>0>(p-l|0)>>>0){x=83;break;}l=m+l|0;if(p>>>0>l>>>0)o=o+4|0;else break;}if((x|0)==83){x=0;if(n){e=-1;break a;}}zo(d,32,v,l,t);if(!l){l=0;x=89;}else{n=c[I>>2]|0;o=0;while(1){m=c[n>>2]|0;if(!m){x=89;break f;}m=Ao(E,m)|0;o=m+o|0;if((o|0)>(l|0)){x=89;break f;}to(d,E,m);if(o>>>0>=l>>>0){x=89;break;}else n=n+4|0;}}}while(0);if((x|0)==73){x=0;m=I;m=(c[m>>2]|0)!=0|(c[m+4>>2]|0)!=0;K=(l|0)!=0|m;m=A-q+((m^1)&1)|0;r=K?q:z;q=K?(l|0)>(m|0)?l:m:0;m=(l|0)>-1?n&-65537:n;l=A;}else if((x|0)==89){x=0;zo(d,32,v,l,t^8192);l=(v|0)>(l|0)?v:l;break;}t=l-r|0;s=(q|0)<(t|0)?t:q;K=s+o|0;l=(v|0)<(K|0)?K:v;zo(d,32,l,K,m);to(d,p,o);zo(d,48,l,K,m^65536);zo(d,48,s,t,0);to(d,r,t);zo(d,32,l,K,m^8192);}while(0);n=w;}g:do if((x|0)==92)if(!d)if(!n)e=0;else{e=1;while(1){l=c[i+(e<<2)>>2]|0;if(!l)break;vo(h+(e<<3)|0,l,f,k);e=e+1|0;if(e>>>0>=10){e=1;break g;}}while(1){if(c[i+(e<<2)>>2]|0){e=-1;break g;}e=e+1|0;if(e>>>0>=10){e=1;break;}}}while(0);V=J;return e|0;}function to(a,b,d){a=a|0;b=b|0;d=d|0;if(!(c[a>>2]&32))jo(b,d,a)|0;return;}function uo(b){b=b|0;var d=0,e=0;if(!(bo(a[c[b>>2]>>0]|0)|0))d=0;else{d=0;do{e=c[b>>2]|0;d=(d*10|0)+-48+(a[e>>0]|0)|0;e=e+1|0;c[b>>2]=e;}while((bo(a[e>>0]|0)|0)!=0);}return d|0;}function vo(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,h=0.0;a:do if(b>>>0<=20)do switch(b|0){case 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a;}while(0);while(0);return;}function wo(b,c,e,f){b=b|0;c=c|0;e=e|0;f=f|0;if(!((b|0)==0&(c|0)==0))do{e=e+-1|0;a[e>>0]=d[640+(b&15)>>0]|0|f;b=qr(b|0,c|0,4)|0;c=u()|0;}while(!((b|0)==0&(c|0)==0));return e|0;}function xo(b,c,d){b=b|0;c=c|0;d=d|0;if(!((b|0)==0&(c|0)==0))do{d=d+-1|0;a[d>>0]=b&7|48;b=qr(b|0,c|0,3)|0;c=u()|0;}while(!((b|0)==0&(c|0)==0));return d|0;}function yo(b,c,d){b=b|0;c=c|0;d=d|0;var e=0,f=0,g=0;if(c>>>0>0|(c|0)==0&b>>>0>4294967295){do{e=b;b=pr(b|0,c|0,10,0)|0;f=c;c=u()|0;g=kr(b|0,c|0,10,0)|0;g=mr(e|0,f|0,g|0,u()|0)|0;u()|0;d=d+-1|0;a[d>>0]=g&255|48;}while(f>>>0>9|(f|0)==9&e>>>0>4294967295);c=b;}else c=b;if(c)do{g=c;c=(c>>>0)/10|0;d=d+-1|0;a[d>>0]=g-(c*10|0)|48;}while(g>>>0>=10);return d|0;}function zo(a,b,c,d,e){a=a|0;b=b|0;c=c|0;d=d|0;e=e|0;var f=0,g=0;g=V;V=V+256|0;f=g;if((c|0)>(d|0)&(e&73728|0)==0){e=c-d|0;wr(f|0,b<<24>>24|0,(e>>>0<256?e:256)|0)|0;if(e>>>0>255){b=c-d|0;do{to(a,f,256);e=e+-256|0;}while(e>>>0>255);e=b&255;}to(a,f,e);}V=g;return;}function Ao(a,b){a=a|0;b=b|0;if(!a)a=0;else a=Bo(a,b,0)|0;return a|0;}function Bo(b,d,e){b=b|0;d=d|0;e=e|0;do if(b){if(d>>>0<128){a[b>>0]=d;b=1;break;}if(!(c[c[(Co()|0)+176>>2]>>2]|0))if((d&-128|0)==57216){a[b>>0]=d;b=1;break;}else{c[(ao()|0)>>2]=25;b=-1;break;}if(d>>>0<2048){a[b>>0]=d>>>6|192;a[b+1>>0]=d&63|128;b=2;break;}if(d>>>0<55296|(d&-8192|0)==57344){a[b>>0]=d>>>12|224;a[b+1>>0]=d>>>6&63|128;a[b+2>>0]=d&63|128;b=3;break;}if((d+-65536|0)>>>0<1048576){a[b>>0]=d>>>18|240;a[b+1>>0]=d>>>12&63|128;a[b+2>>0]=d>>>6&63|128;a[b+3>>0]=d&63|128;b=4;break;}else{c[(ao()|0)>>2]=25;b=-1;break;}}else b=1;while(0);return b|0;}function Co(){return co()|0;}function Do(a){a=+a;var b=0;g[h>>3]=a;b=c[h>>2]|0;t(c[h+4>>2]|0);return b|0;}function Eo(a,b){a=+a;b=b|0;var d=0,e=0,f=0;g[h>>3]=a;d=c[h>>2]|0;e=c[h+4>>2]|0;f=qr(d|0,e|0,52)|0;u()|0;switch(f&2047){case 0:{if(a!=0.0){a=+Eo(a*18446744073709551616.0,b);d=(c[b>>2]|0)+-64|0;}else d=0;c[b>>2]=d;break;}case 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e=0,f=0;e=a+20|0;f=c[e>>2]|0;a=(c[a+16>>2]|0)-f|0;a=a>>>0>d>>>0?d:a;ur(f|0,b|0,a|0)|0;c[e>>2]=(c[e>>2]|0)+a;return d|0;}function Jo(a){a=a|0;var b=0,c=0;b=(fo(a)|0)+1|0;c=dr(b)|0;if(!c)a=0;else a=ur(c|0,a|0,b|0)|0;return a|0;}function Ko(b,e){b=b|0;e=e|0;var f=0,g=0;f=0;while(1){if((d[656+f>>0]|0)==(b|0)){g=4;break;}f=f+1|0;if((f|0)==87){b=87;g=5;break;}}if((g|0)==4)if(!f)f=752;else{b=f;g=5;}if((g|0)==5){f=752;do{do{g=f;f=f+1|0;}while((a[g>>0]|0)!=0);b=b+-1|0;}while((b|0)!=0);}return Lo(f,c[e+20>>2]|0)|0;}function Lo(a,b){a=a|0;b=b|0;return ko(a,b)|0;}function Mo(a){a=a|0;return Ko(a,c[(No()|0)+176>>2]|0)|0;}function No(){return co()|0;}function Oo(b,c,d){b=b|0;c=c|0;d=d|0;var e=0;e=Mo(b)|0;b=fo(e)|0;if(b>>>0>=d>>>0){b=d+-1|0;if(!d)b=68;else{ur(c|0,e|0,b|0)|0;a[c+b>>0]=0;b=68;}}else{ur(c|0,e|0,b+1|0)|0;b=0;}return b|0;}function Po(){var a=0,b=0,d=0,e=0,f=0,g=0,h=0;e=V;V=V+48|0;g=e+32|0;b=e+24|0;h=e+16|0;f=e;e=e+36|0;a=Qo()|0;if(a|0?(d=c[a>>2]|0,d|0):0){a=d+48|0;if(!(Ro(a)|0)){c[b>>2]=20420;To(20370,b);}b=So(a)|0;if((b|0)==1126902529&(u()|0)==1129074247)a=c[d+44>>2]|0;else a=d+80|0;c[e>>2]=a;d=c[d>>2]|0;a=c[d+4>>2]|0;if(aa[c[(c[954]|0)+16>>2]&7](3816,d,e)|0){h=c[e>>2]|0;h=Z[c[(c[h>>2]|0)+8>>2]&15](h)|0;c[f>>2]=20420;c[f+4>>2]=a;c[f+8>>2]=h;To(20284,f);}else{c[h>>2]=20420;c[h+4>>2]=a;To(20329,h);}}To(20408,g);}function Qo(){return 21640;}function Ro(a){a=a|0;a=So(a)|0;return(a&-256|0)==1126902528&(u()|0)==1129074247|0;}function So(a){a=a|0;var b=0;b=a;a=c[b>>2]|0;t(c[b+4>>2]|0);return a|0;}function To(a,b){a=a|0;b=b|0;U();}function Uo(a){a=a|0;return;}function Vo(a){a=a|0;Uo(a);jp(a);return;}function Wo(a){a=a|0;return;}function Xo(a){a=a|0;return;}function Yo(d,e,f){d=d|0;e=e|0;f=f|0;var g=0,h=0,i=0,j=0,k=0,l=0;l=V;V=V+64|0;j=l;if(!(ap(d,e,0)|0)){if((e|0)!=0?(k=ep(e,3840,3824,0)|0,(k|0)!=0):0){c[j>>2]=k;c[j+4>>2]=0;c[j+8>>2]=d;c[j+12>>2]=-1;d=j+16|0;e=j+24|0;g=j+48|0;h=d;i=h+36|0;do{c[h>>2]=0;h=h+4|0;}while((h|0)<(i|0));b[d+36>>1]=0;a[d+38>>0]=0;c[g>>2]=1;fa[c[(c[k>>2]|0)+28>>2]&7](k,j,c[f>>2]|0,1);if((c[e>>2]|0)==1){c[f>>2]=c[d>>2];d=1;}else d=0;}else d=0;}else d=1;V=l;return d|0;}function Zo(a,b,d,e,f,g){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;if(ap(a,c[b+8>>2]|0,g)|0)dp(0,b,d,e,f);return;}function _o(b,d,e,f,g){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;var h=0;do if(!(ap(b,c[d+8>>2]|0,g)|0)){if(ap(b,c[d>>2]|0,g)|0){if((c[d+16>>2]|0)!=(e|0)?(h=d+20|0,(c[h>>2]|0)!=(e|0)):0){c[d+32>>2]=f;c[h>>2]=e;g=d+40|0;c[g>>2]=(c[g>>2]|0)+1;if((c[d+36>>2]|0)==1?(c[d+24>>2]|0)==2:0)a[d+54>>0]=1;c[d+44>>2]=4;break;}if((f|0)==1)c[d+32>>2]=1;}}else cp(0,d,e,f);while(0);return;}function $o(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;if(ap(a,c[b+8>>2]|0,0)|0)bp(0,b,d,e);return;}function ap(a,b,d){a=a|0;b=b|0;d=d|0;if(d){if((a|0)==(b|0))a=1;else a=(eo(c[a+4>>2]|0,c[b+4>>2]|0)|0)==0;}else a=(c[a+4>>2]|0)==(c[b+4>>2]|0);return a|0;}function bp(b,d,e,f){b=b|0;d=d|0;e=e|0;f=f|0;var g=0;b=d+16|0;g=c[b>>2]|0;do if(g){if((g|0)!=(e|0)){f=d+36|0;c[f>>2]=(c[f>>2]|0)+1;c[d+24>>2]=2;a[d+54>>0]=1;break;}b=d+24|0;if((c[b>>2]|0)==2)c[b>>2]=f;}else{c[b>>2]=e;c[d+24>>2]=f;c[d+36>>2]=1;}while(0);return;}function cp(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0;if((c[b+4>>2]|0)==(d|0)?(f=b+28|0,(c[f>>2]|0)!=1):0)c[f>>2]=e;return;}function dp(b,d,e,f,g){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;a[d+53>>0]=1;do if((c[d+4>>2]|0)==(f|0)){a[d+52>>0]=1;b=d+16|0;f=c[b>>2]|0;if(!f){c[b>>2]=e;c[d+24>>2]=g;c[d+36>>2]=1;if(!((g|0)==1?(c[d+48>>2]|0)==1:0))break;a[d+54>>0]=1;break;}if((f|0)!=(e|0)){g=d+36|0;c[g>>2]=(c[g>>2]|0)+1;a[d+54>>0]=1;break;}f=d+24|0;b=c[f>>2]|0;if((b|0)==2){c[f>>2]=g;b=g;}if((b|0)==1?(c[d+48>>2]|0)==1:0)a[d+54>>0]=1;}while(0);return;}function ep(d,e,f,g){d=d|0;e=e|0;f=f|0;g=g|0;var h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0;p=V;V=V+64|0;n=p;m=c[d>>2]|0;o=d+(c[m+-8>>2]|0)|0;m=c[m+-4>>2]|0;c[n>>2]=f;c[n+4>>2]=d;c[n+8>>2]=e;c[n+12>>2]=g;d=n+16|0;e=n+20|0;g=n+24|0;h=n+28|0;i=n+32|0;j=n+40|0;k=d;l=k+36|0;do{c[k>>2]=0;k=k+4|0;}while((k|0)<(l|0));b[d+36>>1]=0;a[d+38>>0]=0;a:do if(ap(m,f,0)|0){c[n+48>>2]=1;ha[c[(c[m>>2]|0)+20>>2]&3](m,n,o,o,1,0);d=(c[g>>2]|0)==1?o:0;}else{ga[c[(c[m>>2]|0)+24>>2]&3](m,n,o,1,0);switch(c[n+36>>2]|0){case 0:{d=(c[j>>2]|0)==1&(c[h>>2]|0)==1&(c[i>>2]|0)==1?c[e>>2]|0:0;break a;}case 1:break;default:{d=0;break a;}}if((c[g>>2]|0)!=1?!((c[j>>2]|0)==0&(c[h>>2]|0)==1&(c[i>>2]|0)==1):0){d=0;break;}d=c[d>>2]|0;}while(0);V=p;return d|0;}function fp(a){a=a|0;Uo(a);jp(a);return;}function gp(a,b,d,e,f,g){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;if(ap(a,c[b+8>>2]|0,g)|0)dp(0,b,d,e,f);else{a=c[a+8>>2]|0;ha[c[(c[a>>2]|0)+20>>2]&3](a,b,d,e,f,g);}return;}function hp(b,d,e,f,g){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;var h=0,i=0,j=0;a:do if(!(ap(b,c[d+8>>2]|0,g)|0)){if(!(ap(b,c[d>>2]|0,g)|0)){i=c[b+8>>2]|0;ga[c[(c[i>>2]|0)+24>>2]&3](i,d,e,f,g);break;}if((c[d+16>>2]|0)!=(e|0)?(i=d+20|0,(c[i>>2]|0)!=(e|0)):0){c[d+32>>2]=f;f=d+44|0;do if((c[f>>2]|0)!=4){h=d+52|0;a[h>>0]=0;j=d+53|0;a[j>>0]=0;b=c[b+8>>2]|0;ha[c[(c[b>>2]|0)+20>>2]&3](b,d,e,e,1,g);if(a[j>>0]|0){j=(a[h>>0]|0)==0;c[f>>2]=3;if(j)break;else break a;}else{c[f>>2]=4;break;}}while(0);c[i>>2]=e;j=d+40|0;c[j>>2]=(c[j>>2]|0)+1;if((c[d+36>>2]|0)!=1)break;if((c[d+24>>2]|0)!=2)break;a[d+54>>0]=1;break;}if((f|0)==1)c[d+32>>2]=1;}else cp(0,d,e,f);while(0);return;}function ip(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;if(ap(a,c[b+8>>2]|0,0)|0)bp(0,b,d,e);else{a=c[a+8>>2]|0;fa[c[(c[a>>2]|0)+28>>2]&7](a,b,d,e);}return;}function jp(a){a=a|0;er(a);return;}function kp(a){a=a|0;return;}function lp(){var a=0,b=0;a=Qo()|0;if((a|0?(b=c[a>>2]|0,b|0):0)?Ro(b+48|0)|0:0)mp(c[b+12>>2]|0);mp(np()|0);}function mp(a){a=a|0;var b=0;b=V;V=V+16|0;ba[a&3]();To(20559,b);}function np(){return 2;}function op(a){a=a|0;return;}function pp(a){a=a|0;jp(a);return;}function qp(a){a=a|0;return 20599;}function rp(a){a=a|0;c[a>>2]=5916;vp(a+4|0);return;}function sp(a){a=a|0;rp(a);jp(a);return;}function tp(a){a=a|0;return up(a+4|0)|0;}function up(a){a=a|0;return c[a>>2]|0;}function vp(a){a=a|0;var b=0,d=0;if(wp(a)|0?(b=xp(c[a>>2]|0)|0,d=b+8|0,a=c[d>>2]|0,c[d>>2]=a+-1,(a|0)<1):0)jp(b);return;}function wp(a){a=a|0;return 1;}function xp(a){a=a|0;return a+-12|0;}function yp(a){a=a|0;c[a>>2]=5936;vp(a+4|0);return;}function zp(a){a=a|0;yp(a);jp(a);return;}function Ap(a){a=a|0;return up(a+4|0)|0;}function Bp(a){a=a|0;rp(a);jp(a);return;}function Cp(a){a=a|0;rp(a);jp(a);return;}function Dp(){var a=0;a=V;V=V+16|0;To(20848,a);}function Ep(a){a=a|0;Uo(a);jp(a);return;}function Fp(a,b,c){a=a|0;b=b|0;c=c|0;return ap(a,b,0)|0;}function Gp(a){a=a|0;Uo(a);jp(a);return;}function Hp(d,e,f){d=d|0;e=e|0;f=f|0;var g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0;n=V;V=V+64|0;l=n;do if(!(ap(e,4048,0)|0)){if(Ip(d,e,0)|0){e=c[f>>2]|0;if(!e){e=1;break;}c[f>>2]=c[e>>2];e=1;break;}if((e|0)!=0?(g=ep(e,3840,3976,0)|0,(g|0)!=0):0){e=c[f>>2]|0;if(e|0)c[f>>2]=c[e>>2];e=c[g+8>>2]|0;i=d+8|0;h=c[i>>2]|0;if((e&7&(h^7)|0)==0?((e&96^96)&h|0)==0:0){h=d+12|0;d=c[h>>2]|0;g=g+12|0;e=c[g>>2]|0;if(!(ap(d,e,0)|0)){if(ap(d,4040,0)|0){if(!e){e=1;break;}e=(ep(e,3840,3992,0)|0)==0;break;}if(d){e=ep(d,3840,3976,0)|0;if(e|0){if(!(c[i>>2]&1)){e=0;break;}e=Jp(e,c[g>>2]|0)|0;break;}e=c[h>>2]|0;if(e){e=ep(e,3840,4008,0)|0;if(e|0){if(!(c[i>>2]&1)){e=0;break;}e=Kp(e,c[g>>2]|0)|0;break;}e=c[h>>2]|0;if((((e|0)!=0?(j=ep(e,3840,3824,0)|0,(j|0)!=0):0)?(k=c[g>>2]|0,(k|0)!=0):0)?(m=ep(k,3840,3824,0)|0,(m|0)!=0):0){c[l>>2]=m;c[l+4>>2]=0;c[l+8>>2]=j;c[l+12>>2]=-1;e=l+16|0;d=l+24|0;g=l+48|0;h=e;i=h+36|0;do{c[h>>2]=0;h=h+4|0;}while((h|0)<(i|0));b[e+36>>1]=0;a[e+38>>0]=0;c[g>>2]=1;fa[c[(c[m>>2]|0)+28>>2]&7](m,l,c[f>>2]|0,1);do if((c[d>>2]|0)==1){if(!(c[f>>2]|0)){e=1;break;}c[f>>2]=c[e>>2];e=1;}else e=0;while(0);}else e=0;}else e=0;}else e=0;}else e=1;}else e=0;}else e=0;}else{c[f>>2]=0;e=1;}while(0);V=n;return e|0;}function Ip(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;if(!(c[a+8>>2]&24)){if((b|0)!=0?(e=ep(b,3840,3960,0)|0,(e|0)!=0):0){d=(c[e+8>>2]&24|0)!=0;f=5;}else d=0;}else{d=1;f=5;}if((f|0)==5)d=ap(a,b,d)|0;return d|0;}function Jp(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0;while(1){if(!b){b=0;break;}d=ep(b,3840,3976,0)|0;if(!d){b=0;break;}f=c[a+8>>2]|0;if(c[d+8>>2]&~f|0){b=0;break;}e=a+12|0;b=c[e>>2]|0;d=d+12|0;if(ap(b,c[d>>2]|0,0)|0){b=1;break;}if((f&1|0)==0|(b|0)==0){b=0;break;}a=ep(b,3840,3976,0)|0;if(!a){h=9;break;}b=c[d>>2]|0;}if((h|0)==9){b=c[e>>2]|0;if((b|0)!=0?(g=ep(b,3840,4008,0)|0,(g|0)!=0):0)b=Kp(g,c[d>>2]|0)|0;else b=0;}return b|0;}function Kp(a,b){a=a|0;b=b|0;var d=0;if((((b|0)!=0?(d=ep(b,3840,4008,0)|0,(d|0)!=0):0)?(c[d+8>>2]&~c[a+8>>2]|0)==0:0)?ap(c[a+12>>2]|0,c[d+12>>2]|0,0)|0:0)a=ap(c[a+16>>2]|0,c[d+16>>2]|0,0)|0;else a=0;return a|0;}function Lp(a){a=a|0;Uo(a);jp(a);return;}function Mp(b,d,e,f,g,h){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;h=h|0;var i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0;if(ap(b,c[d+8>>2]|0,h)|0)dp(0,d,e,f,g);else{r=d+52|0;j=a[r>>0]|0;q=d+53|0;i=a[q>>0]|0;p=c[b+12>>2]|0;m=b+16+(p<<3)|0;a[r>>0]=0;a[q>>0]=0;Qp(b+16|0,d,e,f,g,h);k=a[r>>0]|0;j=k|j;l=a[q>>0]|0;i=l|i;a:do if((p|0)>1){n=d+24|0;o=b+8|0;p=d+54|0;b=b+24|0;do{i=i&1;j=j&1;if(a[p>>0]|0)break a;if(!(k<<24>>24)){if(l<<24>>24?(c[o>>2]&1|0)==0:0)break a;}else{if((c[n>>2]|0)==1)break a;if(!(c[o>>2]&2))break a;}a[r>>0]=0;a[q>>0]=0;Qp(b,d,e,f,g,h);k=a[r>>0]|0;j=k|j;l=a[q>>0]|0;i=l|i;b=b+8|0;}while(b>>>0<m>>>0);}while(0);a[r>>0]=j<<24>>24!=0&1;a[q>>0]=i<<24>>24!=0&1;}return;}function Np(b,d,e,f,g){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;var h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0;a:do 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Vq(a,b,c){a=a|0;b=b|0;c=c|0;if((c|0)>256)Aq(a,21319,lb(21319)|0);else Pq(a,0,c);return;}function Wq(){if((a[21488]|0)==0?Tp(21488)|0:0)$p(21488);return 6180;}function Xq(){if((a[21480]|0)==0?Tp(21480)|0:0)$p(21480);return 6176;}function Yq(a){a=a|0;yp(a);return;}function Zq(a){a=a|0;Yq(a);jp(a);return;}function _q(a,b){a=a|0;b=b|0;var d=0;d=c[b+4>>2]|0;ea[c[(c[d>>2]|0)+24>>2]&15](a,d,c[b>>2]|0);return;}function $q(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0;h=V;V=V+16|0;g=h;if(c[d>>2]|0){f=a[e+11>>0]|0;if(f<<24>>24<0)f=c[e+4>>2]|0;else f=f&255;if(f|0)Fq(e,21417)|0;_q(g,d);d=a[g+11>>0]|0;f=d<<24>>24<0;Eq(e,f?c[g>>2]|0:g,f?c[g+4>>2]|0:d&255)|0;Cq(g);}c[b>>2]=c[e>>2];c[b+4>>2]=c[e+4>>2];c[b+8>>2]=c[e+8>>2];f=0;while(1){if((f|0)==3)break;c[e+(f<<2)>>2]=0;f=f+1|0;}V=h;return;}function ar(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0;e=V;V=V+32|0;g=e+12|0;f=e;Aq(f,d,lb(d)|0);$q(g,b,f);wq(a,g);Cq(g);Cq(f);c[a>>2]=6192;f=b;b=c[f+4>>2]|0;d=a+8|0;c[d>>2]=c[f>>2];c[d+4>>2]=b;V=e;return;}function br(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;f=V;V=V+16|0;e=f+8|0;d=v(16)|0;Wq()|0;c[f>>2]=a;c[f+4>>2]=6180;c[e>>2]=c[f>>2];c[e+4>>2]=c[f+4>>2];ar(d,e,b);x(d|0,4272,136);}function cr(a){a=a|0;a=v(8)|0;vq(a,21420);c[a>>2]=5956;x(a|0,3928,123);}function dr(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0;w=V;V=V+16|0;n=w;do if(a>>>0<245){k=a>>>0<11?16:a+11&-8;a=k>>>3;m=c[5412]|0;d=m>>>a;if(d&3|0){b=(d&1^1)+a|0;a=21688+(b<<1<<2)|0;d=a+8|0;e=c[d>>2]|0;f=e+8|0;g=c[f>>2]|0;if((g|0)==(a|0))c[5412]=m&~(1<<b);else{c[g+12>>2]=a;c[d>>2]=g;}v=b<<3;c[e+4>>2]=v|3;v=e+v+4|0;c[v>>2]=c[v>>2]|1;v=f;V=w;return v|0;}l=c[5414]|0;if(k>>>0>l>>>0){if(d|0){b=2<<a;b=d<<a&(b|0-b);b=(b&0-b)+-1|0;i=b>>>12&16;b=b>>>i;d=b>>>5&8;b=b>>>d;g=b>>>2&4;b=b>>>g;a=b>>>1&2;b=b>>>a;e=b>>>1&1;e=(d|i|g|a|e)+(b>>>e)|0;b=21688+(e<<1<<2)|0;a=b+8|0;g=c[a>>2]|0;i=g+8|0;d=c[i>>2]|0;if((d|0)==(b|0)){a=m&~(1<<e);c[5412]=a;}else{c[d+12>>2]=b;c[a>>2]=d;a=m;}v=e<<3;h=v-k|0;c[g+4>>2]=k|3;f=g+k|0;c[f+4>>2]=h|1;c[g+v>>2]=h;if(l|0){e=c[5417]|0;b=l>>>3;d=21688+(b<<1<<2)|0;b=1<<b;if(!(a&b)){c[5412]=a|b;b=d;a=d+8|0;}else{a=d+8|0;b=c[a>>2]|0;}c[a>>2]=e;c[b+12>>2]=e;c[e+8>>2]=b;c[e+12>>2]=d;}c[5414]=h;c[5417]=f;v=i;V=w;return v|0;}g=c[5413]|0;if(g){d=(g&0-g)+-1|0;f=d>>>12&16;d=d>>>f;e=d>>>5&8;d=d>>>e;h=d>>>2&4;d=d>>>h;i=d>>>1&2;d=d>>>i;j=d>>>1&1;j=c[21952+((e|f|h|i|j)+(d>>>j)<<2)>>2]|0;d=j;i=j;j=(c[j+4>>2]&-8)-k|0;while(1){a=c[d+16>>2]|0;if(!a){a=c[d+20>>2]|0;if(!a)break;}h=(c[a+4>>2]&-8)-k|0;f=h>>>0<j>>>0;d=a;i=f?a:i;j=f?h:j;}h=i+k|0;if(h>>>0>i>>>0){f=c[i+24>>2]|0;b=c[i+12>>2]|0;do if((b|0)==(i|0)){a=i+20|0;b=c[a>>2]|0;if(!b){a=i+16|0;b=c[a>>2]|0;if(!b){d=0;break;}}while(1){e=b+20|0;d=c[e>>2]|0;if(!d){e=b+16|0;d=c[e>>2]|0;if(!d)break;else{b=d;a=e;}}else{b=d;a=e;}}c[a>>2]=0;d=b;}else{d=c[i+8>>2]|0;c[d+12>>2]=b;c[b+8>>2]=d;d=b;}while(0);do if(f|0){b=c[i+28>>2]|0;a=21952+(b<<2)|0;if((i|0)==(c[a>>2]|0)){c[a>>2]=d;if(!d){c[5413]=g&~(1<<b);break;}}else{v=f+16|0;c[((c[v>>2]|0)==(i|0)?v:f+20|0)>>2]=d;if(!d)break;}c[d+24>>2]=f;b=c[i+16>>2]|0;if(b|0){c[d+16>>2]=b;c[b+24>>2]=d;}b=c[i+20>>2]|0;if(b|0){c[d+20>>2]=b;c[b+24>>2]=d;}}while(0);if(j>>>0<16){v=j+k|0;c[i+4>>2]=v|3;v=i+v+4|0;c[v>>2]=c[v>>2]|1;}else{c[i+4>>2]=k|3;c[h+4>>2]=j|1;c[h+j>>2]=j;if(l|0){e=c[5417]|0;b=l>>>3;d=21688+(b<<1<<2)|0;b=1<<b;if(!(b&m)){c[5412]=b|m;b=d;a=d+8|0;}else{a=d+8|0;b=c[a>>2]|0;}c[a>>2]=e;c[b+12>>2]=e;c[e+8>>2]=b;c[e+12>>2]=d;}c[5414]=j;c[5417]=h;}v=i+8|0;V=w;return v|0;}else m=k;}else m=k;}else m=k;}else if(a>>>0<=4294967231){a=a+11|0;k=a&-8;e=c[5413]|0;if(e){f=0-k|0;a=a>>>8;if(a){if(k>>>0>16777215)j=31;else{m=(a+1048320|0)>>>16&8;q=a<<m;i=(q+520192|0)>>>16&4;q=q<<i;j=(q+245760|0)>>>16&2;j=14-(i|m|j)+(q<<j>>>15)|0;j=k>>>(j+7|0)&1|j<<1;}}else j=0;d=c[21952+(j<<2)>>2]|0;a:do if(!d){d=0;a=0;q=61;}else{a=0;i=k<<((j|0)==31?0:25-(j>>>1)|0);g=0;while(1){h=(c[d+4>>2]&-8)-k|0;if(h>>>0<f>>>0)if(!h){a=d;f=0;q=65;break a;}else{a=d;f=h;}q=c[d+20>>2]|0;d=c[d+16+(i>>>31<<2)>>2]|0;g=(q|0)==0|(q|0)==(d|0)?g:q;if(!d){d=g;q=61;break;}else i=i<<1;}}while(0);if((q|0)==61){if((d|0)==0&(a|0)==0){a=2<<j;a=(a|0-a)&e;if(!a){m=k;break;}m=(a&0-a)+-1|0;h=m>>>12&16;m=m>>>h;g=m>>>5&8;m=m>>>g;i=m>>>2&4;m=m>>>i;j=m>>>1&2;m=m>>>j;d=m>>>1&1;a=0;d=c[21952+((g|h|i|j|d)+(m>>>d)<<2)>>2]|0;}if(!d){i=a;h=f;}else q=65;}if((q|0)==65){g=d;while(1){m=(c[g+4>>2]&-8)-k|0;d=m>>>0<f>>>0;f=d?m:f;a=d?g:a;d=c[g+16>>2]|0;if(!d)d=c[g+20>>2]|0;if(!d){i=a;h=f;break;}else g=d;}}if(((i|0)!=0?h>>>0<((c[5414]|0)-k|0)>>>0:0)?(l=i+k|0,l>>>0>i>>>0):0){g=c[i+24>>2]|0;b=c[i+12>>2]|0;do if((b|0)==(i|0)){a=i+20|0;b=c[a>>2]|0;if(!b){a=i+16|0;b=c[a>>2]|0;if(!b){b=0;break;}}while(1){f=b+20|0;d=c[f>>2]|0;if(!d){f=b+16|0;d=c[f>>2]|0;if(!d)break;else{b=d;a=f;}}else{b=d;a=f;}}c[a>>2]=0;}else{v=c[i+8>>2]|0;c[v+12>>2]=b;c[b+8>>2]=v;}while(0);do if(g){a=c[i+28>>2]|0;d=21952+(a<<2)|0;if((i|0)==(c[d>>2]|0)){c[d>>2]=b;if(!b){e=e&~(1<<a);c[5413]=e;break;}}else{v=g+16|0;c[((c[v>>2]|0)==(i|0)?v:g+20|0)>>2]=b;if(!b)break;}c[b+24>>2]=g;a=c[i+16>>2]|0;if(a|0){c[b+16>>2]=a;c[a+24>>2]=b;}a=c[i+20>>2]|0;if(a){c[b+20>>2]=a;c[a+24>>2]=b;}}while(0);b:do if(h>>>0<16){v=h+k|0;c[i+4>>2]=v|3;v=i+v+4|0;c[v>>2]=c[v>>2]|1;}else{c[i+4>>2]=k|3;c[l+4>>2]=h|1;c[l+h>>2]=h;b=h>>>3;if(h>>>0<256){d=21688+(b<<1<<2)|0;a=c[5412]|0;b=1<<b;if(!(a&b)){c[5412]=a|b;b=d;a=d+8|0;}else{a=d+8|0;b=c[a>>2]|0;}c[a>>2]=l;c[b+12>>2]=l;c[l+8>>2]=b;c[l+12>>2]=d;break;}b=h>>>8;if(b){if(h>>>0>16777215)d=31;else{u=(b+1048320|0)>>>16&8;v=b<<u;t=(v+520192|0)>>>16&4;v=v<<t;d=(v+245760|0)>>>16&2;d=14-(t|u|d)+(v<<d>>>15)|0;d=h>>>(d+7|0)&1|d<<1;}}else d=0;b=21952+(d<<2)|0;c[l+28>>2]=d;a=l+16|0;c[a+4>>2]=0;c[a>>2]=0;a=1<<d;if(!(e&a)){c[5413]=e|a;c[b>>2]=l;c[l+24>>2]=b;c[l+12>>2]=l;c[l+8>>2]=l;break;}b=c[b>>2]|0;c:do if((c[b+4>>2]&-8|0)!=(h|0)){e=h<<((d|0)==31?0:25-(d>>>1)|0);while(1){d=b+16+(e>>>31<<2)|0;a=c[d>>2]|0;if(!a)break;if((c[a+4>>2]&-8|0)==(h|0)){b=a;break c;}else{e=e<<1;b=a;}}c[d>>2]=l;c[l+24>>2]=b;c[l+12>>2]=l;c[l+8>>2]=l;break b;}while(0);u=b+8|0;v=c[u>>2]|0;c[v+12>>2]=l;c[u>>2]=l;c[l+8>>2]=v;c[l+12>>2]=b;c[l+24>>2]=0;}while(0);v=i+8|0;V=w;return v|0;}else m=k;}else m=k;}else m=-1;while(0);d=c[5414]|0;if(d>>>0>=m>>>0){b=d-m|0;a=c[5417]|0;if(b>>>0>15){v=a+m|0;c[5417]=v;c[5414]=b;c[v+4>>2]=b|1;c[a+d>>2]=b;c[a+4>>2]=m|3;}else{c[5414]=0;c[5417]=0;c[a+4>>2]=d|3;v=a+d+4|0;c[v>>2]=c[v>>2]|1;}v=a+8|0;V=w;return v|0;}h=c[5415]|0;if(h>>>0>m>>>0){t=h-m|0;c[5415]=t;v=c[5418]|0;u=v+m|0;c[5418]=u;c[u+4>>2]=t|1;c[v+4>>2]=m|3;v=v+8|0;V=w;return v|0;}if(!(c[5530]|0)){c[5532]=4096;c[5531]=4096;c[5533]=-1;c[5534]=-1;c[5535]=0;c[5523]=0;c[5530]=n&-16^1431655768;a=4096;}else a=c[5532]|0;i=m+48|0;j=m+47|0;g=a+j|0;f=0-a|0;k=g&f;if(k>>>0<=m>>>0){v=0;V=w;return v|0;}a=c[5522]|0;if(a|0?(l=c[5520]|0,n=l+k|0,n>>>0<=l>>>0|n>>>0>a>>>0):0){v=0;V=w;return v|0;}d:do if(!(c[5523]&4)){d=c[5418]|0;e:do if(d){e=22096;while(1){n=c[e>>2]|0;if(n>>>0<=d>>>0?(n+(c[e+4>>2]|0)|0)>>>0>d>>>0:0)break;a=c[e+8>>2]|0;if(!a){q=128;break e;}else e=a;}b=g-h&f;if(b>>>0<2147483647){a=fr(b)|0;if((a|0)==((c[e>>2]|0)+(c[e+4>>2]|0)|0)){if((a|0)!=(-1|0)){h=b;g=a;q=145;break d;}}else{e=a;q=136;}}else b=0;}else q=128;while(0);do if((q|0)==128){d=fr(0)|0;if((d|0)!=(-1|0)?(b=d,o=c[5531]|0,p=o+-1|0,b=((p&b|0)==0?0:(p+b&0-o)-b|0)+k|0,o=c[5520]|0,p=b+o|0,b>>>0>m>>>0&b>>>0<2147483647):0){n=c[5522]|0;if(n|0?p>>>0<=o>>>0|p>>>0>n>>>0:0){b=0;break;}a=fr(b)|0;if((a|0)==(d|0)){h=b;g=d;q=145;break d;}else{e=a;q=136;}}else b=0;}while(0);do if((q|0)==136){d=0-b|0;if(!(i>>>0>b>>>0&(b>>>0<2147483647&(e|0)!=(-1|0))))if((e|0)==(-1|0)){b=0;break;}else{h=b;g=e;q=145;break d;}a=c[5532]|0;a=j-b+a&0-a;if(a>>>0>=2147483647){h=b;g=e;q=145;break d;}if((fr(a)|0)==(-1|0)){fr(d)|0;b=0;break;}else{h=a+b|0;g=e;q=145;break d;}}while(0);c[5523]=c[5523]|4;q=143;}else{b=0;q=143;}while(0);if(((q|0)==143?k>>>0<2147483647:0)?(t=fr(k)|0,p=fr(0)|0,r=p-t|0,s=r>>>0>(m+40|0)>>>0,!((t|0)==(-1|0)|s^1|t>>>0<p>>>0&((t|0)!=(-1|0)&(p|0)!=(-1|0))^1)):0){h=s?r:b;g=t;q=145;}if((q|0)==145){b=(c[5520]|0)+h|0;c[5520]=b;if(b>>>0>(c[5521]|0)>>>0)c[5521]=b;j=c[5418]|0;f:do if(j){b=22096;while(1){a=c[b>>2]|0;d=c[b+4>>2]|0;if((g|0)==(a+d|0)){q=154;break;}e=c[b+8>>2]|0;if(!e)break;else b=e;}if(((q|0)==154?(u=b+4|0,(c[b+12>>2]&8|0)==0):0)?g>>>0>j>>>0&a>>>0<=j>>>0:0){c[u>>2]=d+h;v=(c[5415]|0)+h|0;t=j+8|0;t=(t&7|0)==0?0:0-t&7;u=j+t|0;t=v-t|0;c[5418]=u;c[5415]=t;c[u+4>>2]=t|1;c[j+v+4>>2]=40;c[5419]=c[5534];break;}if(g>>>0<(c[5416]|0)>>>0)c[5416]=g;d=g+h|0;b=22096;while(1){if((c[b>>2]|0)==(d|0)){q=162;break;}a=c[b+8>>2]|0;if(!a)break;else b=a;}if((q|0)==162?(c[b+12>>2]&8|0)==0:0){c[b>>2]=g;l=b+4|0;c[l>>2]=(c[l>>2]|0)+h;l=g+8|0;l=g+((l&7|0)==0?0:0-l&7)|0;b=d+8|0;b=d+((b&7|0)==0?0:0-b&7)|0;k=l+m|0;i=b-l-m|0;c[l+4>>2]=m|3;g:do if((j|0)==(b|0)){v=(c[5415]|0)+i|0;c[5415]=v;c[5418]=k;c[k+4>>2]=v|1;}else{if((c[5417]|0)==(b|0)){v=(c[5414]|0)+i|0;c[5414]=v;c[5417]=k;c[k+4>>2]=v|1;c[k+v>>2]=v;break;}a=c[b+4>>2]|0;if((a&3|0)==1){h=a&-8;e=a>>>3;h:do if(a>>>0<256){a=c[b+8>>2]|0;d=c[b+12>>2]|0;if((d|0)==(a|0)){c[5412]=c[5412]&~(1<<e);break;}else{c[a+12>>2]=d;c[d+8>>2]=a;break;}}else{g=c[b+24>>2]|0;a=c[b+12>>2]|0;do if((a|0)==(b|0)){d=b+16|0;e=d+4|0;a=c[e>>2]|0;if(!a){a=c[d>>2]|0;if(!a){a=0;break;}}else d=e;while(1){f=a+20|0;e=c[f>>2]|0;if(!e){f=a+16|0;e=c[f>>2]|0;if(!e)break;else{a=e;d=f;}}else{a=e;d=f;}}c[d>>2]=0;}else{v=c[b+8>>2]|0;c[v+12>>2]=a;c[a+8>>2]=v;}while(0);if(!g)break;d=c[b+28>>2]|0;e=21952+(d<<2)|0;do if((c[e>>2]|0)!=(b|0)){v=g+16|0;c[((c[v>>2]|0)==(b|0)?v:g+20|0)>>2]=a;if(!a)break h;}else{c[e>>2]=a;if(a|0)break;c[5413]=c[5413]&~(1<<d);break h;}while(0);c[a+24>>2]=g;d=b+16|0;e=c[d>>2]|0;if(e|0){c[a+16>>2]=e;c[e+24>>2]=a;}d=c[d+4>>2]|0;if(!d)break;c[a+20>>2]=d;c[d+24>>2]=a;}while(0);b=b+h|0;f=h+i|0;}else f=i;b=b+4|0;c[b>>2]=c[b>>2]&-2;c[k+4>>2]=f|1;c[k+f>>2]=f;b=f>>>3;if(f>>>0<256){d=21688+(b<<1<<2)|0;a=c[5412]|0;b=1<<b;if(!(a&b)){c[5412]=a|b;b=d;a=d+8|0;}else{a=d+8|0;b=c[a>>2]|0;}c[a>>2]=k;c[b+12>>2]=k;c[k+8>>2]=b;c[k+12>>2]=d;break;}b=f>>>8;do if(!b)e=0;else{if(f>>>0>16777215){e=31;break;}u=(b+1048320|0)>>>16&8;v=b<<u;t=(v+520192|0)>>>16&4;v=v<<t;e=(v+245760|0)>>>16&2;e=14-(t|u|e)+(v<<e>>>15)|0;e=f>>>(e+7|0)&1|e<<1;}while(0);b=21952+(e<<2)|0;c[k+28>>2]=e;a=k+16|0;c[a+4>>2]=0;c[a>>2]=0;a=c[5413]|0;d=1<<e;if(!(a&d)){c[5413]=a|d;c[b>>2]=k;c[k+24>>2]=b;c[k+12>>2]=k;c[k+8>>2]=k;break;}b=c[b>>2]|0;i:do if((c[b+4>>2]&-8|0)!=(f|0)){e=f<<((e|0)==31?0:25-(e>>>1)|0);while(1){d=b+16+(e>>>31<<2)|0;a=c[d>>2]|0;if(!a)break;if((c[a+4>>2]&-8|0)==(f|0)){b=a;break i;}else{e=e<<1;b=a;}}c[d>>2]=k;c[k+24>>2]=b;c[k+12>>2]=k;c[k+8>>2]=k;break g;}while(0);u=b+8|0;v=c[u>>2]|0;c[v+12>>2]=k;c[u>>2]=k;c[k+8>>2]=v;c[k+12>>2]=b;c[k+24>>2]=0;}while(0);v=l+8|0;V=w;return v|0;}b=22096;while(1){a=c[b>>2]|0;if(a>>>0<=j>>>0?(v=a+(c[b+4>>2]|0)|0,v>>>0>j>>>0):0)break;b=c[b+8>>2]|0;}f=v+-47|0;a=f+8|0;a=f+((a&7|0)==0?0:0-a&7)|0;f=j+16|0;a=a>>>0<f>>>0?j:a;b=a+8|0;d=h+-40|0;t=g+8|0;t=(t&7|0)==0?0:0-t&7;u=g+t|0;t=d-t|0;c[5418]=u;c[5415]=t;c[u+4>>2]=t|1;c[g+d+4>>2]=40;c[5419]=c[5534];d=a+4|0;c[d>>2]=27;c[b>>2]=c[5524];c[b+4>>2]=c[5525];c[b+8>>2]=c[5526];c[b+12>>2]=c[5527];c[5524]=g;c[5525]=h;c[5527]=0;c[5526]=b;b=a+24|0;do{u=b;b=b+4|0;c[b>>2]=7;}while((u+8|0)>>>0<v>>>0);if((a|0)!=(j|0)){g=a-j|0;c[d>>2]=c[d>>2]&-2;c[j+4>>2]=g|1;c[a>>2]=g;b=g>>>3;if(g>>>0<256){d=21688+(b<<1<<2)|0;a=c[5412]|0;b=1<<b;if(!(a&b)){c[5412]=a|b;b=d;a=d+8|0;}else{a=d+8|0;b=c[a>>2]|0;}c[a>>2]=j;c[b+12>>2]=j;c[j+8>>2]=b;c[j+12>>2]=d;break;}b=g>>>8;if(b){if(g>>>0>16777215)e=31;else{u=(b+1048320|0)>>>16&8;v=b<<u;t=(v+520192|0)>>>16&4;v=v<<t;e=(v+245760|0)>>>16&2;e=14-(t|u|e)+(v<<e>>>15)|0;e=g>>>(e+7|0)&1|e<<1;}}else e=0;d=21952+(e<<2)|0;c[j+28>>2]=e;c[j+20>>2]=0;c[f>>2]=0;b=c[5413]|0;a=1<<e;if(!(b&a)){c[5413]=b|a;c[d>>2]=j;c[j+24>>2]=d;c[j+12>>2]=j;c[j+8>>2]=j;break;}b=c[d>>2]|0;j:do if((c[b+4>>2]&-8|0)!=(g|0)){e=g<<((e|0)==31?0:25-(e>>>1)|0);while(1){d=b+16+(e>>>31<<2)|0;a=c[d>>2]|0;if(!a)break;if((c[a+4>>2]&-8|0)==(g|0)){b=a;break j;}else{e=e<<1;b=a;}}c[d>>2]=j;c[j+24>>2]=b;c[j+12>>2]=j;c[j+8>>2]=j;break f;}while(0);u=b+8|0;v=c[u>>2]|0;c[v+12>>2]=j;c[u>>2]=j;c[j+8>>2]=v;c[j+12>>2]=b;c[j+24>>2]=0;}}else{v=c[5416]|0;if((v|0)==0|g>>>0<v>>>0)c[5416]=g;c[5524]=g;c[5525]=h;c[5527]=0;c[5421]=c[5530];c[5420]=-1;c[5425]=21688;c[5424]=21688;c[5427]=21696;c[5426]=21696;c[5429]=21704;c[5428]=21704;c[5431]=21712;c[5430]=21712;c[5433]=21720;c[5432]=21720;c[5435]=21728;c[5434]=21728;c[5437]=21736;c[5436]=21736;c[5439]=21744;c[5438]=21744;c[5441]=21752;c[5440]=21752;c[5443]=21760;c[5442]=21760;c[5445]=21768;c[5444]=21768;c[5447]=21776;c[5446]=21776;c[5449]=21784;c[5448]=21784;c[5451]=21792;c[5450]=21792;c[5453]=21800;c[5452]=21800;c[5455]=21808;c[5454]=21808;c[5457]=21816;c[5456]=21816;c[5459]=21824;c[5458]=21824;c[5461]=21832;c[5460]=21832;c[5463]=21840;c[5462]=21840;c[5465]=21848;c[5464]=21848;c[5467]=21856;c[5466]=21856;c[5469]=21864;c[5468]=21864;c[5471]=21872;c[5470]=21872;c[5473]=21880;c[5472]=21880;c[5475]=21888;c[5474]=21888;c[5477]=21896;c[5476]=21896;c[5479]=21904;c[5478]=21904;c[5481]=21912;c[5480]=21912;c[5483]=21920;c[5482]=21920;c[5485]=21928;c[5484]=21928;c[5487]=21936;c[5486]=21936;v=h+-40|0;t=g+8|0;t=(t&7|0)==0?0:0-t&7;u=g+t|0;t=v-t|0;c[5418]=u;c[5415]=t;c[u+4>>2]=t|1;c[g+v+4>>2]=40;c[5419]=c[5534];}while(0);b=c[5415]|0;if(b>>>0>m>>>0){t=b-m|0;c[5415]=t;v=c[5418]|0;u=v+m|0;c[5418]=u;c[u+4>>2]=t|1;c[v+4>>2]=m|3;v=v+8|0;V=w;return v|0;}}c[(ao()|0)>>2]=48;v=0;V=w;return v|0;}function er(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0;if(!a)return;d=a+-8|0;f=c[5416]|0;a=c[a+-4>>2]|0;b=a&-8;j=d+b|0;do if(!(a&1)){e=c[d>>2]|0;if(!(a&3))return;h=d+(0-e)|0;g=e+b|0;if(h>>>0<f>>>0)return;if((c[5417]|0)==(h|0)){a=j+4|0;b=c[a>>2]|0;if((b&3|0)!=3){i=h;b=g;break;}c[5414]=g;c[a>>2]=b&-2;c[h+4>>2]=g|1;c[h+g>>2]=g;return;}d=e>>>3;if(e>>>0<256){a=c[h+8>>2]|0;b=c[h+12>>2]|0;if((b|0)==(a|0)){c[5412]=c[5412]&~(1<<d);i=h;b=g;break;}else{c[a+12>>2]=b;c[b+8>>2]=a;i=h;b=g;break;}}f=c[h+24>>2]|0;a=c[h+12>>2]|0;do if((a|0)==(h|0)){b=h+16|0;d=b+4|0;a=c[d>>2]|0;if(!a){a=c[b>>2]|0;if(!a){a=0;break;}}else b=d;while(1){e=a+20|0;d=c[e>>2]|0;if(!d){e=a+16|0;d=c[e>>2]|0;if(!d)break;else{a=d;b=e;}}else{a=d;b=e;}}c[b>>2]=0;}else{i=c[h+8>>2]|0;c[i+12>>2]=a;c[a+8>>2]=i;}while(0);if(f){b=c[h+28>>2]|0;d=21952+(b<<2)|0;if((c[d>>2]|0)==(h|0)){c[d>>2]=a;if(!a){c[5413]=c[5413]&~(1<<b);i=h;b=g;break;}}else{i=f+16|0;c[((c[i>>2]|0)==(h|0)?i:f+20|0)>>2]=a;if(!a){i=h;b=g;break;}}c[a+24>>2]=f;b=h+16|0;d=c[b>>2]|0;if(d|0){c[a+16>>2]=d;c[d+24>>2]=a;}b=c[b+4>>2]|0;if(b){c[a+20>>2]=b;c[b+24>>2]=a;i=h;b=g;}else{i=h;b=g;}}else{i=h;b=g;}}else{i=d;h=d;}while(0);if(h>>>0>=j>>>0)return;a=j+4|0;e=c[a>>2]|0;if(!(e&1))return;if(!(e&2)){if((c[5418]|0)==(j|0)){j=(c[5415]|0)+b|0;c[5415]=j;c[5418]=i;c[i+4>>2]=j|1;if((i|0)!=(c[5417]|0))return;c[5417]=0;c[5414]=0;return;}if((c[5417]|0)==(j|0)){j=(c[5414]|0)+b|0;c[5414]=j;c[5417]=h;c[i+4>>2]=j|1;c[h+j>>2]=j;return;}f=(e&-8)+b|0;d=e>>>3;do if(e>>>0<256){b=c[j+8>>2]|0;a=c[j+12>>2]|0;if((a|0)==(b|0)){c[5412]=c[5412]&~(1<<d);break;}else{c[b+12>>2]=a;c[a+8>>2]=b;break;}}else{g=c[j+24>>2]|0;a=c[j+12>>2]|0;do if((a|0)==(j|0)){b=j+16|0;d=b+4|0;a=c[d>>2]|0;if(!a){a=c[b>>2]|0;if(!a){d=0;break;}}else b=d;while(1){e=a+20|0;d=c[e>>2]|0;if(!d){e=a+16|0;d=c[e>>2]|0;if(!d)break;else{a=d;b=e;}}else{a=d;b=e;}}c[b>>2]=0;d=a;}else{d=c[j+8>>2]|0;c[d+12>>2]=a;c[a+8>>2]=d;d=a;}while(0);if(g|0){a=c[j+28>>2]|0;b=21952+(a<<2)|0;if((c[b>>2]|0)==(j|0)){c[b>>2]=d;if(!d){c[5413]=c[5413]&~(1<<a);break;}}else{e=g+16|0;c[((c[e>>2]|0)==(j|0)?e:g+20|0)>>2]=d;if(!d)break;}c[d+24>>2]=g;a=j+16|0;b=c[a>>2]|0;if(b|0){c[d+16>>2]=b;c[b+24>>2]=d;}a=c[a+4>>2]|0;if(a|0){c[d+20>>2]=a;c[a+24>>2]=d;}}}while(0);c[i+4>>2]=f|1;c[h+f>>2]=f;if((i|0)==(c[5417]|0)){c[5414]=f;return;}}else{c[a>>2]=e&-2;c[i+4>>2]=b|1;c[h+b>>2]=b;f=b;}a=f>>>3;if(f>>>0<256){d=21688+(a<<1<<2)|0;b=c[5412]|0;a=1<<a;if(!(b&a)){c[5412]=b|a;a=d;b=d+8|0;}else{b=d+8|0;a=c[b>>2]|0;}c[b>>2]=i;c[a+12>>2]=i;c[i+8>>2]=a;c[i+12>>2]=d;return;}a=f>>>8;if(a){if(f>>>0>16777215)e=31;else{h=(a+1048320|0)>>>16&8;j=a<<h;g=(j+520192|0)>>>16&4;j=j<<g;e=(j+245760|0)>>>16&2;e=14-(g|h|e)+(j<<e>>>15)|0;e=f>>>(e+7|0)&1|e<<1;}}else e=0;a=21952+(e<<2)|0;c[i+28>>2]=e;c[i+20>>2]=0;c[i+16>>2]=0;b=c[5413]|0;d=1<<e;a:do if(!(b&d)){c[5413]=b|d;c[a>>2]=i;c[i+24>>2]=a;c[i+12>>2]=i;c[i+8>>2]=i;}else{a=c[a>>2]|0;b:do if((c[a+4>>2]&-8|0)!=(f|0)){e=f<<((e|0)==31?0:25-(e>>>1)|0);while(1){d=a+16+(e>>>31<<2)|0;b=c[d>>2]|0;if(!b)break;if((c[b+4>>2]&-8|0)==(f|0)){a=b;break b;}else{e=e<<1;a=b;}}c[d>>2]=i;c[i+24>>2]=a;c[i+12>>2]=i;c[i+8>>2]=i;break a;}while(0);h=a+8|0;j=c[h>>2]|0;c[j+12>>2]=i;c[h>>2]=i;c[i+8>>2]=j;c[i+12>>2]=a;c[i+24>>2]=0;}while(0);j=(c[5420]|0)+-1|0;c[5420]=j;if(j|0)return;a=22104;while(1){a=c[a>>2]|0;if(!a)break;else a=a+8|0;}c[5420]=-1;return;}function fr(a){a=a|0;var b=0,d=0,e=0;e=a+3&-4;a=sr()|0;b=c[a>>2]|0;d=b+e|0;do if((e|0)<1|d>>>0>b>>>0){if(d>>>0>(R()|0)>>>0?(T(d|0)|0)==0:0)break;c[a>>2]=d;e=b;return e|0;}while(0);c[(ao()|0)>>2]=48;e=-1;return e|0;}function gr(a){a=a|0;var b=0;b=V;V=V+a|0;V=V+15&-16;return b|0;}function hr(a){a=a|0;V=a;}function ir(){return V|0;}function jr(a,b){a=a|0;b=b|0;var c=0,d=0,e=0,f=0;f=a&65535;e=b&65535;c=q(e,f)|0;d=a>>>16;a=(c>>>16)+(q(e,d)|0)|0;e=b>>>16;b=q(e,f)|0;return(t((a>>>16)+(q(e,d)|0)+(((a&65535)+b|0)>>>16)|0),a+b<<16|c&65535|0)|0;}function kr(a,b,c,d){a=a|0;b=b|0;c=c|0;d=d|0;var e=0,f=0;e=a;f=c;c=jr(e,f)|0;a=u()|0;return(t((q(b,f)|0)+(q(d,e)|0)+a|a&0|0),c|0|0)|0;}function lr(a,b,c,d){a=a|0;b=b|0;c=c|0;d=d|0;c=a+c>>>0;return(t(b+d+(c>>>0<a>>>0|0)>>>0|0),c|0)|0;}function mr(a,b,c,d){a=a|0;b=b|0;c=c|0;d=d|0;d=b-d-(c>>>0>a>>>0|0)>>>0;return(t(d|0),a-c>>>0|0)|0;}function nr(a){a=a|0;return(a?31-(r(a^a-1)|0)|0:32)|0;}function or(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0;l=a;j=b;k=j;h=d;n=e;i=n;if(!k){g=(f|0)!=0;if(!i){if(g){c[f>>2]=(l>>>0)%(h>>>0);c[f+4>>2]=0;}n=0;f=(l>>>0)/(h>>>0)>>>0;return(t(n|0),f)|0;}else{if(!g){n=0;f=0;return(t(n|0),f)|0;}c[f>>2]=a|0;c[f+4>>2]=b&0;n=0;f=0;return(t(n|0),f)|0;}}g=(i|0)==0;do 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//# sourceMappingURL=laz-perf.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/las/dist/esm/lib/parse-las.js":
/*!****************************************************************!*\
  !*** ./node_modules/@loaders.gl/las/dist/esm/lib/parse-las.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ parseLAS),
/* harmony export */   "parseLASChunked": () => (/* binding */ parseLASChunked)
/* harmony export */ });
/* harmony import */ var _loaders_gl_schema__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @loaders.gl/schema */ "./node_modules/@loaders.gl/schema/dist/esm/category/mesh/convert-mesh.js");
/* harmony import */ var _loaders_gl_schema__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! @loaders.gl/schema */ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/schema.js");
/* harmony import */ var _loaders_gl_schema__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! @loaders.gl/schema */ "./node_modules/@loaders.gl/schema/dist/esm/category/mesh/mesh-utils.js");
/* harmony import */ var _laslaz_decoder__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./laslaz-decoder */ "./node_modules/@loaders.gl/las/dist/esm/lib/laslaz-decoder.js");
/* harmony import */ var _get_las_schema__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./get-las-schema */ "./node_modules/@loaders.gl/las/dist/esm/lib/get-las-schema.js");



function parseLAS(arrayBuffer, options) {
  var _options$las;

  const mesh = parseLASMesh(arrayBuffer, options);
  return (0,_loaders_gl_schema__WEBPACK_IMPORTED_MODULE_0__.convertMesh)(mesh, (options === null || options === void 0 ? void 0 : (_options$las = options.las) === null || _options$las === void 0 ? void 0 : _options$las.shape) || 'mesh');
}

function parseLASMesh(arrayBuffer, options = {}) {
  var _options$las2;

  let pointIndex = 0;
  let positions;
  let colors;
  let intensities;
  let classifications;
  let originalHeader;
  const lasMesh = {
    loader: 'las',
    loaderData: {},
    schema: new _loaders_gl_schema__WEBPACK_IMPORTED_MODULE_1__["default"]([]),
    header: {
      vertexCount: 0,
      boundingBox: [[0, 0, 0], [0, 0, 0]]
    },
    attributes: {},
    topology: 'point-list',
    mode: 0
  };
  parseLASChunked(arrayBuffer, (_options$las2 = options.las) === null || _options$las2 === void 0 ? void 0 : _options$las2.skip, (decoder = {}, lasHeader) => {
    var _options$las4, _options$onProgress;

    if (!originalHeader) {
      var _options$las3;

      originalHeader = lasHeader;
      const total = lasHeader.totalToRead;
      const PositionsType = (_options$las3 = options.las) !== null && _options$las3 !== void 0 && _options$las3.fp64 ? Float64Array : Float32Array;
      positions = new PositionsType(total * 3);
      colors = lasHeader.pointsFormatId >= 2 ? new Uint8Array(total * 4) : null;
      intensities = new Uint16Array(total);
      classifications = new Uint8Array(total);
      lasMesh.loaderData = lasHeader;
      lasMesh.attributes = {
        POSITION: {
          value: positions,
          size: 3
        },
        intensity: {
          value: intensities,
          size: 1
        },
        classification: {
          value: classifications,
          size: 1
        }
      };

      if (colors) {
        lasMesh.attributes.COLOR_0 = {
          value: colors,
          size: 4
        };
      }
    }

    const batchSize = decoder.pointsCount;
    const {
      scale: [scaleX, scaleY, scaleZ],
      offset: [offsetX, offsetY, offsetZ]
    } = lasHeader;
    const twoByteColor = detectTwoByteColors(decoder, batchSize, (_options$las4 = options.las) === null || _options$las4 === void 0 ? void 0 : _options$las4.colorDepth);

    for (let i = 0; i < batchSize; i++) {
      const {
        position,
        color,
        intensity,
        classification
      } = decoder.getPoint(i);
      positions[pointIndex * 3] = position[0] * scaleX + offsetX;
      positions[pointIndex * 3 + 1] = position[1] * scaleY + offsetY;
      positions[pointIndex * 3 + 2] = position[2] * scaleZ + offsetZ;

      if (color && colors) {
        if (twoByteColor) {
          colors[pointIndex * 4] = color[0] / 256;
          colors[pointIndex * 4 + 1] = color[1] / 256;
          colors[pointIndex * 4 + 2] = color[2] / 256;
        } else {
          colors[pointIndex * 4] = color[0];
          colors[pointIndex * 4 + 1] = color[1];
          colors[pointIndex * 4 + 2] = color[2];
        }

        colors[pointIndex * 4 + 3] = 255;
      }

      intensities[pointIndex] = intensity;
      classifications[pointIndex] = classification;
      pointIndex++;
    }

    const meshBatch = { ...lasMesh,
      header: {
        vertexCount: lasHeader.totalRead
      },
      progress: lasHeader.totalRead / lasHeader.totalToRead
    };
    options === null || options === void 0 ? void 0 : (_options$onProgress = options.onProgress) === null || _options$onProgress === void 0 ? void 0 : _options$onProgress.call(options, meshBatch);
  });
  lasMesh.header = {
    vertexCount: originalHeader.totalToRead,
    boundingBox: (0,_loaders_gl_schema__WEBPACK_IMPORTED_MODULE_2__.getMeshBoundingBox)((lasMesh === null || lasMesh === void 0 ? void 0 : lasMesh.attributes) || {})
  };

  if (lasMesh) {
    lasMesh.schema = (0,_get_las_schema__WEBPACK_IMPORTED_MODULE_3__.getLASSchema)(lasMesh.loaderData, lasMesh.attributes);
  }

  return lasMesh;
}

function parseLASChunked(rawData, skip, onParseData = {}) {
  const dataHandler = new _laslaz_decoder__WEBPACK_IMPORTED_MODULE_4__.LASFile(rawData);

  try {
    dataHandler.open();
    const header = dataHandler.getHeader();
    const Unpacker = dataHandler.getUnpacker();
    const totalToRead = Math.ceil(header.pointsCount / Math.max(1, skip));
    header.totalToRead = totalToRead;
    let totalRead = 0;

    while (true) {
      const chunk = dataHandler.readData(1000 * 100, 0, skip);
      totalRead += chunk.count;
      header.totalRead = totalRead;
      header.versionAsString = chunk.versionAsString;
      header.isCompressed = chunk.isCompressed;
      const unpacker = new Unpacker(chunk.buffer, chunk.count, header);
      onParseData(unpacker, header);

      if (!chunk.hasMoreData || totalRead >= totalToRead) {
        break;
      }
    }
  } catch (e) {
    throw e;
  } finally {
    dataHandler.close();
  }
}

function detectTwoByteColors(decoder = {}, batchSize, colorDepth) {
  let twoByteColor = false;

  switch (colorDepth) {
    case 8:
      twoByteColor = false;
      break;

    case 16:
      twoByteColor = true;
      break;

    case 'auto':
      if (decoder.getPoint(0).color) {
        for (let i = 0; i < batchSize; i++) {
          const {
            color
          } = decoder.getPoint(i);

          if (color[0] > 255 || color[1] > 255 || color[2] > 255) {
            twoByteColor = true;
          }
        }
      }

      break;

    default:
      console.warn('las: illegal value for options.las.colorDepth');
      break;
  }

  return twoByteColor;
}
//# sourceMappingURL=parse-las.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/schema/dist/esm/category/mesh/convert-mesh.js":
/*!********************************************************************************!*\
  !*** ./node_modules/@loaders.gl/schema/dist/esm/category/mesh/convert-mesh.js ***!
  \********************************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "convertMesh": () => (/* binding */ convertMesh),
/* harmony export */   "convertMeshToColumnarTable": () => (/* binding */ convertMeshToColumnarTable)
/* harmony export */ });
function convertMesh(mesh, shape, options) {
  switch (shape || 'mesh') {
    case 'mesh':
      return mesh;

    case 'columnar-table':
      return convertMeshToColumnarTable(mesh);

    default:
      throw new Error("Unsupported shape ".concat(options === null || options === void 0 ? void 0 : options.shape));
  }
}
function convertMeshToColumnarTable(mesh) {
  const columns = {};

  for (const [columnName, attribute] of Object.entries(mesh.attributes)) {
    columns[columnName] = attribute.value;
  }

  return {
    shape: 'columnar-table',
    schema: mesh.schema,
    data: columns
  };
}
//# sourceMappingURL=convert-mesh.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/schema/dist/esm/category/mesh/deduce-mesh-schema.js":
/*!**************************************************************************************!*\
  !*** ./node_modules/@loaders.gl/schema/dist/esm/category/mesh/deduce-mesh-schema.js ***!
  \**************************************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "deduceMeshSchema": () => (/* binding */ deduceMeshSchema),
/* harmony export */   "deduceMeshField": () => (/* binding */ deduceMeshField),
/* harmony export */   "makeMeshAttributeMetadata": () => (/* binding */ makeMeshAttributeMetadata)
/* harmony export */ });
/* harmony import */ var _lib_schema_schema__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../../lib/schema/schema */ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/schema.js");
/* harmony import */ var _lib_schema_schema__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../../lib/schema/schema */ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/field.js");
/* harmony import */ var _lib_schema_schema__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../../lib/schema/schema */ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/type.js");
/* harmony import */ var _lib_arrow_arrow_like_type_utils__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../../lib/arrow/arrow-like-type-utils */ "./node_modules/@loaders.gl/schema/dist/esm/lib/arrow/arrow-like-type-utils.js");


function deduceMeshSchema(attributes, metadata) {
  const fields = deduceMeshFields(attributes);
  return new _lib_schema_schema__WEBPACK_IMPORTED_MODULE_0__["default"](fields, metadata);
}
function deduceMeshField(attributeName, attribute, optionalMetadata) {
  const type = (0,_lib_arrow_arrow_like_type_utils__WEBPACK_IMPORTED_MODULE_1__.getArrowTypeFromTypedArray)(attribute.value);
  const metadata = optionalMetadata ? optionalMetadata : makeMeshAttributeMetadata(attribute);
  const field = new _lib_schema_schema__WEBPACK_IMPORTED_MODULE_2__["default"](attributeName, new _lib_schema_schema__WEBPACK_IMPORTED_MODULE_3__.FixedSizeList(attribute.size, new _lib_schema_schema__WEBPACK_IMPORTED_MODULE_2__["default"]('value', type)), false, metadata);
  return field;
}

function deduceMeshFields(attributes) {
  const fields = [];

  for (const attributeName in attributes) {
    const attribute = attributes[attributeName];
    fields.push(deduceMeshField(attributeName, attribute));
  }

  return fields;
}

function makeMeshAttributeMetadata(attribute) {
  const result = new Map();

  if ('byteOffset' in attribute) {
    result.set('byteOffset', attribute.byteOffset.toString(10));
  }

  if ('byteStride' in attribute) {
    result.set('byteStride', attribute.byteStride.toString(10));
  }

  if ('normalized' in attribute) {
    result.set('normalized', attribute.normalized.toString());
  }

  return result;
}
//# sourceMappingURL=deduce-mesh-schema.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/schema/dist/esm/category/mesh/mesh-utils.js":
/*!******************************************************************************!*\
  !*** ./node_modules/@loaders.gl/schema/dist/esm/category/mesh/mesh-utils.js ***!
  \******************************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "getMeshSize": () => (/* binding */ getMeshSize),
/* harmony export */   "getMeshBoundingBox": () => (/* binding */ getMeshBoundingBox)
/* harmony export */ });
function getMeshSize(attributes) {
  let size = 0;

  for (const attributeName in attributes) {
    const attribute = attributes[attributeName];

    if (ArrayBuffer.isView(attribute)) {
      size += attribute.byteLength * attribute.BYTES_PER_ELEMENT;
    }
  }

  return size;
}
function getMeshBoundingBox(attributes) {
  let minX = Infinity;
  let minY = Infinity;
  let minZ = Infinity;
  let maxX = -Infinity;
  let maxY = -Infinity;
  let maxZ = -Infinity;
  const positions = attributes.POSITION ? attributes.POSITION.value : [];
  const len = positions && positions.length;

  for (let i = 0; i < len; i += 3) {
    const x = positions[i];
    const y = positions[i + 1];
    const z = positions[i + 2];
    minX = x < minX ? x : minX;
    minY = y < minY ? y : minY;
    minZ = z < minZ ? z : minZ;
    maxX = x > maxX ? x : maxX;
    maxY = y > maxY ? y : maxY;
    maxZ = z > maxZ ? z : maxZ;
  }

  return [[minX, minY, minZ], [maxX, maxY, maxZ]];
}
//# sourceMappingURL=mesh-utils.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/schema/dist/esm/lib/arrow/arrow-like-type-utils.js":
/*!*************************************************************************************!*\
  !*** ./node_modules/@loaders.gl/schema/dist/esm/lib/arrow/arrow-like-type-utils.js ***!
  \*************************************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "getArrowTypeFromTypedArray": () => (/* binding */ getArrowTypeFromTypedArray)
/* harmony export */ });
/* harmony import */ var _schema_schema__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../schema/schema */ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/type.js");

function getArrowTypeFromTypedArray(array) {
  switch (array.constructor) {
    case Int8Array:
      return new _schema_schema__WEBPACK_IMPORTED_MODULE_0__.Int8();

    case Uint8Array:
      return new _schema_schema__WEBPACK_IMPORTED_MODULE_0__.Uint8();

    case Int16Array:
      return new _schema_schema__WEBPACK_IMPORTED_MODULE_0__.Int16();

    case Uint16Array:
      return new _schema_schema__WEBPACK_IMPORTED_MODULE_0__.Uint16();

    case Int32Array:
      return new _schema_schema__WEBPACK_IMPORTED_MODULE_0__.Int32();

    case Uint32Array:
      return new _schema_schema__WEBPACK_IMPORTED_MODULE_0__.Uint32();

    case Float32Array:
      return new _schema_schema__WEBPACK_IMPORTED_MODULE_0__.Float32();

    case Float64Array:
      return new _schema_schema__WEBPACK_IMPORTED_MODULE_0__.Float64();

    default:
      throw new Error('array type not supported');
  }
}
//# sourceMappingURL=arrow-like-type-utils.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/enum.js":
/*!**************************************************************************!*\
  !*** ./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/enum.js ***!
  \**************************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "Type": () => (/* binding */ Type)
/* harmony export */ });
let Type;

(function (Type) {
  Type[Type["NONE"] = 0] = "NONE";
  Type[Type["Null"] = 1] = "Null";
  Type[Type["Int"] = 2] = "Int";
  Type[Type["Float"] = 3] = "Float";
  Type[Type["Binary"] = 4] = "Binary";
  Type[Type["Utf8"] = 5] = "Utf8";
  Type[Type["Bool"] = 6] = "Bool";
  Type[Type["Decimal"] = 7] = "Decimal";
  Type[Type["Date"] = 8] = "Date";
  Type[Type["Time"] = 9] = "Time";
  Type[Type["Timestamp"] = 10] = "Timestamp";
  Type[Type["Interval"] = 11] = "Interval";
  Type[Type["List"] = 12] = "List";
  Type[Type["Struct"] = 13] = "Struct";
  Type[Type["Union"] = 14] = "Union";
  Type[Type["FixedSizeBinary"] = 15] = "FixedSizeBinary";
  Type[Type["FixedSizeList"] = 16] = "FixedSizeList";
  Type[Type["Map"] = 17] = "Map";
  Type[Type["Dictionary"] = -1] = "Dictionary";
  Type[Type["Int8"] = -2] = "Int8";
  Type[Type["Int16"] = -3] = "Int16";
  Type[Type["Int32"] = -4] = "Int32";
  Type[Type["Int64"] = -5] = "Int64";
  Type[Type["Uint8"] = -6] = "Uint8";
  Type[Type["Uint16"] = -7] = "Uint16";
  Type[Type["Uint32"] = -8] = "Uint32";
  Type[Type["Uint64"] = -9] = "Uint64";
  Type[Type["Float16"] = -10] = "Float16";
  Type[Type["Float32"] = -11] = "Float32";
  Type[Type["Float64"] = -12] = "Float64";
  Type[Type["DateDay"] = -13] = "DateDay";
  Type[Type["DateMillisecond"] = -14] = "DateMillisecond";
  Type[Type["TimestampSecond"] = -15] = "TimestampSecond";
  Type[Type["TimestampMillisecond"] = -16] = "TimestampMillisecond";
  Type[Type["TimestampMicrosecond"] = -17] = "TimestampMicrosecond";
  Type[Type["TimestampNanosecond"] = -18] = "TimestampNanosecond";
  Type[Type["TimeSecond"] = -19] = "TimeSecond";
  Type[Type["TimeMillisecond"] = -20] = "TimeMillisecond";
  Type[Type["TimeMicrosecond"] = -21] = "TimeMicrosecond";
  Type[Type["TimeNanosecond"] = -22] = "TimeNanosecond";
  Type[Type["DenseUnion"] = -23] = "DenseUnion";
  Type[Type["SparseUnion"] = -24] = "SparseUnion";
  Type[Type["IntervalDayTime"] = -25] = "IntervalDayTime";
  Type[Type["IntervalYearMonth"] = -26] = "IntervalYearMonth";
})(Type || (Type = {}));
//# sourceMappingURL=enum.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/field.js":
/*!***************************************************************************!*\
  !*** ./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/field.js ***!
  \***************************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ Field)
/* harmony export */ });
/* harmony import */ var _babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @babel/runtime/helpers/esm/defineProperty */ "./node_modules/@babel/runtime/helpers/esm/defineProperty.js");

class Field {
  constructor(name, type, nullable = false, metadata = new Map()) {
    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "name", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "type", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "nullable", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "metadata", void 0);

    this.name = name;
    this.type = type;
    this.nullable = nullable;
    this.metadata = metadata;
  }

  get typeId() {
    return this.type && this.type.typeId;
  }

  clone() {
    return new Field(this.name, this.type, this.nullable, this.metadata);
  }

  compareTo(other) {
    return this.name === other.name && this.type === other.type && this.nullable === other.nullable && this.metadata === other.metadata;
  }

  toString() {
    return "".concat(this.type).concat(this.nullable ? ', nullable' : '').concat(this.metadata ? ", metadata: ".concat(this.metadata) : '');
  }

}
//# sourceMappingURL=field.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/schema.js":
/*!****************************************************************************!*\
  !*** ./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/schema.js ***!
  \****************************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ Schema)
/* harmony export */ });
/* harmony import */ var _babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @babel/runtime/helpers/esm/defineProperty */ "./node_modules/@babel/runtime/helpers/esm/defineProperty.js");
/* harmony import */ var _utils_assert__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../../utils/assert */ "./node_modules/@loaders.gl/schema/dist/esm/lib/utils/assert.js");


class Schema {
  constructor(fields, metadata) {
    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "fields", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "metadata", void 0);

    (0,_utils_assert__WEBPACK_IMPORTED_MODULE_1__.assert)(Array.isArray(fields));
    checkNames(fields);
    this.fields = fields;
    this.metadata = metadata || new Map();
  }

  compareTo(other) {
    if (this.metadata !== other.metadata) {
      return false;
    }

    if (this.fields.length !== other.fields.length) {
      return false;
    }

    for (let i = 0; i < this.fields.length; ++i) {
      if (!this.fields[i].compareTo(other.fields[i])) {
        return false;
      }
    }

    return true;
  }

  select(...columnNames) {
    const nameMap = Object.create(null);

    for (const name of columnNames) {
      nameMap[name] = true;
    }

    const selectedFields = this.fields.filter(field => nameMap[field.name]);
    return new Schema(selectedFields, this.metadata);
  }

  selectAt(...columnIndices) {
    const selectedFields = columnIndices.map(index => this.fields[index]).filter(Boolean);
    return new Schema(selectedFields, this.metadata);
  }

  assign(schemaOrFields) {
    let fields;
    let metadata = this.metadata;

    if (schemaOrFields instanceof Schema) {
      const otherSchema = schemaOrFields;
      fields = otherSchema.fields;
      metadata = mergeMaps(mergeMaps(new Map(), this.metadata), otherSchema.metadata);
    } else {
      fields = schemaOrFields;
    }

    const fieldMap = Object.create(null);

    for (const field of this.fields) {
      fieldMap[field.name] = field;
    }

    for (const field of fields) {
      fieldMap[field.name] = field;
    }

    const mergedFields = Object.values(fieldMap);
    return new Schema(mergedFields, metadata);
  }

}

function checkNames(fields) {
  const usedNames = {};

  for (const field of fields) {
    if (usedNames[field.name]) {
      console.warn('Schema: duplicated field name', field.name, field);
    }

    usedNames[field.name] = true;
  }
}

function mergeMaps(m1, m2) {
  return new Map([...(m1 || new Map()), ...(m2 || new Map())]);
}
//# sourceMappingURL=schema.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/type.js":
/*!**************************************************************************!*\
  !*** ./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/type.js ***!
  \**************************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "Type": () => (/* reexport safe */ _enum__WEBPACK_IMPORTED_MODULE_1__.Type),
/* harmony export */   "DataType": () => (/* binding */ DataType),
/* harmony export */   "Null": () => (/* binding */ Null),
/* harmony export */   "Bool": () => (/* binding */ Bool),
/* harmony export */   "Int": () => (/* binding */ Int),
/* harmony export */   "Int8": () => (/* binding */ Int8),
/* harmony export */   "Int16": () => (/* binding */ Int16),
/* harmony export */   "Int32": () => (/* binding */ Int32),
/* harmony export */   "Int64": () => (/* binding */ Int64),
/* harmony export */   "Uint8": () => (/* binding */ Uint8),
/* harmony export */   "Uint16": () => (/* binding */ Uint16),
/* harmony export */   "Uint32": () => (/* binding */ Uint32),
/* harmony export */   "Uint64": () => (/* binding */ Uint64),
/* harmony export */   "Float": () => (/* binding */ Float),
/* harmony export */   "Float16": () => (/* binding */ Float16),
/* harmony export */   "Float32": () => (/* binding */ Float32),
/* harmony export */   "Float64": () => (/* binding */ Float64),
/* harmony export */   "Binary": () => (/* binding */ Binary),
/* harmony export */   "Utf8": () => (/* binding */ Utf8),
/* harmony export */   "Date": () => (/* binding */ Date),
/* harmony export */   "DateDay": () => (/* binding */ DateDay),
/* harmony export */   "DateMillisecond": () => (/* binding */ DateMillisecond),
/* harmony export */   "Time": () => (/* binding */ Time),
/* harmony export */   "TimeSecond": () => (/* binding */ TimeSecond),
/* harmony export */   "TimeMillisecond": () => (/* binding */ TimeMillisecond),
/* harmony export */   "Timestamp": () => (/* binding */ Timestamp),
/* harmony export */   "TimestampSecond": () => (/* binding */ TimestampSecond),
/* harmony export */   "TimestampMillisecond": () => (/* binding */ TimestampMillisecond),
/* harmony export */   "TimestampMicrosecond": () => (/* binding */ TimestampMicrosecond),
/* harmony export */   "TimestampNanosecond": () => (/* binding */ TimestampNanosecond),
/* harmony export */   "Interval": () => (/* binding */ Interval),
/* harmony export */   "IntervalDayTime": () => (/* binding */ IntervalDayTime),
/* harmony export */   "IntervalYearMonth": () => (/* binding */ IntervalYearMonth),
/* harmony export */   "FixedSizeList": () => (/* binding */ FixedSizeList),
/* harmony export */   "Struct": () => (/* binding */ Struct)
/* harmony export */ });
/* harmony import */ var _babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @babel/runtime/helpers/esm/defineProperty */ "./node_modules/@babel/runtime/helpers/esm/defineProperty.js");
/* harmony import */ var _enum__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./enum */ "./node_modules/@loaders.gl/schema/dist/esm/lib/schema/impl/enum.js");


let _Symbol$toStringTag, _Symbol$toStringTag2, _Symbol$toStringTag3, _Symbol$toStringTag4, _Symbol$toStringTag5, _Symbol$toStringTag6, _Symbol$toStringTag7, _Symbol$toStringTag8;



class DataType {
  static isNull(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Null;
  }

  static isInt(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Int;
  }

  static isFloat(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Float;
  }

  static isBinary(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Binary;
  }

  static isUtf8(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Utf8;
  }

  static isBool(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Bool;
  }

  static isDecimal(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Decimal;
  }

  static isDate(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Date;
  }

  static isTime(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Time;
  }

  static isTimestamp(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Timestamp;
  }

  static isInterval(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Interval;
  }

  static isList(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.List;
  }

  static isStruct(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Struct;
  }

  static isUnion(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Union;
  }

  static isFixedSizeBinary(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.FixedSizeBinary;
  }

  static isFixedSizeList(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.FixedSizeList;
  }

  static isMap(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Map;
  }

  static isDictionary(x) {
    return x && x.typeId === _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Dictionary;
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.NONE;
  }

  compareTo(other) {
    return this === other;
  }

}
class Null extends DataType {
  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Null;
  }

  get [Symbol.toStringTag]() {
    return 'Null';
  }

  toString() {
    return 'Null';
  }

}
class Bool extends DataType {
  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Bool;
  }

  get [Symbol.toStringTag]() {
    return 'Bool';
  }

  toString() {
    return 'Bool';
  }

}
_Symbol$toStringTag = Symbol.toStringTag;
class Int extends DataType {
  constructor(isSigned, bitWidth) {
    super();

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "isSigned", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "bitWidth", void 0);

    this.isSigned = isSigned;
    this.bitWidth = bitWidth;
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Int;
  }

  get [_Symbol$toStringTag]() {
    return 'Int';
  }

  toString() {
    return "".concat(this.isSigned ? 'I' : 'Ui', "nt").concat(this.bitWidth);
  }

}
class Int8 extends Int {
  constructor() {
    super(true, 8);
  }

}
class Int16 extends Int {
  constructor() {
    super(true, 16);
  }

}
class Int32 extends Int {
  constructor() {
    super(true, 32);
  }

}
class Int64 extends Int {
  constructor() {
    super(true, 64);
  }

}
class Uint8 extends Int {
  constructor() {
    super(false, 8);
  }

}
class Uint16 extends Int {
  constructor() {
    super(false, 16);
  }

}
class Uint32 extends Int {
  constructor() {
    super(false, 32);
  }

}
class Uint64 extends Int {
  constructor() {
    super(false, 64);
  }

}
const Precision = {
  HALF: 16,
  SINGLE: 32,
  DOUBLE: 64
};
_Symbol$toStringTag2 = Symbol.toStringTag;
class Float extends DataType {
  constructor(precision) {
    super();

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "precision", void 0);

    this.precision = precision;
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Float;
  }

  get [_Symbol$toStringTag2]() {
    return 'Float';
  }

  toString() {
    return "Float".concat(this.precision);
  }

}
class Float16 extends Float {
  constructor() {
    super(Precision.HALF);
  }

}
class Float32 extends Float {
  constructor() {
    super(Precision.SINGLE);
  }

}
class Float64 extends Float {
  constructor() {
    super(Precision.DOUBLE);
  }

}
class Binary extends DataType {
  constructor() {
    super();
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Binary;
  }

  toString() {
    return 'Binary';
  }

  get [Symbol.toStringTag]() {
    return 'Binary';
  }

}
class Utf8 extends DataType {
  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Utf8;
  }

  get [Symbol.toStringTag]() {
    return 'Utf8';
  }

  toString() {
    return 'Utf8';
  }

}
const DateUnit = {
  DAY: 0,
  MILLISECOND: 1
};
_Symbol$toStringTag3 = Symbol.toStringTag;
class Date extends DataType {
  constructor(unit) {
    super();

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "unit", void 0);

    this.unit = unit;
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Date;
  }

  get [_Symbol$toStringTag3]() {
    return 'Date';
  }

  toString() {
    return "Date".concat((this.unit + 1) * 32, "<").concat(DateUnit[this.unit], ">");
  }

}
class DateDay extends Date {
  constructor() {
    super(DateUnit.DAY);
  }

}
class DateMillisecond extends Date {
  constructor() {
    super(DateUnit.MILLISECOND);
  }

}
const TimeUnit = {
  SECOND: 1,
  MILLISECOND: 1e3,
  MICROSECOND: 1e6,
  NANOSECOND: 1e9
};
_Symbol$toStringTag4 = Symbol.toStringTag;
class Time extends DataType {
  constructor(unit, bitWidth) {
    super();

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "unit", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "bitWidth", void 0);

    this.unit = unit;
    this.bitWidth = bitWidth;
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Time;
  }

  toString() {
    return "Time".concat(this.bitWidth, "<").concat(TimeUnit[this.unit], ">");
  }

  get [_Symbol$toStringTag4]() {
    return 'Time';
  }

}
class TimeSecond extends Time {
  constructor() {
    super(TimeUnit.SECOND, 32);
  }

}
class TimeMillisecond extends Time {
  constructor() {
    super(TimeUnit.MILLISECOND, 32);
  }

}
_Symbol$toStringTag5 = Symbol.toStringTag;
class Timestamp extends DataType {
  constructor(unit, timezone = null) {
    super();

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "unit", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "timezone", void 0);

    this.unit = unit;
    this.timezone = timezone;
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Timestamp;
  }

  get [_Symbol$toStringTag5]() {
    return 'Timestamp';
  }

  toString() {
    return "Timestamp<".concat(TimeUnit[this.unit]).concat(this.timezone ? ", ".concat(this.timezone) : '', ">");
  }

}
class TimestampSecond extends Timestamp {
  constructor(timezone = null) {
    super(TimeUnit.SECOND, timezone);
  }

}
class TimestampMillisecond extends Timestamp {
  constructor(timezone = null) {
    super(TimeUnit.MILLISECOND, timezone);
  }

}
class TimestampMicrosecond extends Timestamp {
  constructor(timezone = null) {
    super(TimeUnit.MICROSECOND, timezone);
  }

}
class TimestampNanosecond extends Timestamp {
  constructor(timezone = null) {
    super(TimeUnit.NANOSECOND, timezone);
  }

}
const IntervalUnit = {
  DAY_TIME: 0,
  YEAR_MONTH: 1
};
_Symbol$toStringTag6 = Symbol.toStringTag;
class Interval extends DataType {
  constructor(unit) {
    super();

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "unit", void 0);

    this.unit = unit;
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Interval;
  }

  get [_Symbol$toStringTag6]() {
    return 'Interval';
  }

  toString() {
    return "Interval<".concat(IntervalUnit[this.unit], ">");
  }

}
class IntervalDayTime extends Interval {
  constructor() {
    super(IntervalUnit.DAY_TIME);
  }

}
class IntervalYearMonth extends Interval {
  constructor() {
    super(IntervalUnit.YEAR_MONTH);
  }

}
_Symbol$toStringTag7 = Symbol.toStringTag;
class FixedSizeList extends DataType {
  constructor(listSize, child) {
    super();

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "listSize", void 0);

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "children", void 0);

    this.listSize = listSize;
    this.children = [child];
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.FixedSizeList;
  }

  get valueType() {
    return this.children[0].type;
  }

  get valueField() {
    return this.children[0];
  }

  get [_Symbol$toStringTag7]() {
    return 'FixedSizeList';
  }

  toString() {
    return "FixedSizeList[".concat(this.listSize, "]<").concat(this.valueType, ">");
  }

}
_Symbol$toStringTag8 = Symbol.toStringTag;
class Struct extends DataType {
  constructor(children) {
    super();

    (0,_babel_runtime_helpers_esm_defineProperty__WEBPACK_IMPORTED_MODULE_0__["default"])(this, "children", void 0);

    this.children = children;
  }

  get typeId() {
    return _enum__WEBPACK_IMPORTED_MODULE_1__.Type.Struct;
  }

  toString() {
    return "Struct<{".concat(this.children.map(f => "".concat(f.name, ":").concat(f.type)).join(', '), "}>");
  }

  get [_Symbol$toStringTag8]() {
    return 'Struct';
  }

}
//# sourceMappingURL=type.js.map

/***/ }),

/***/ "./node_modules/@loaders.gl/schema/dist/esm/lib/utils/assert.js":
/*!**********************************************************************!*\
  !*** ./node_modules/@loaders.gl/schema/dist/esm/lib/utils/assert.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "assert": () => (/* binding */ assert)
/* harmony export */ });
function assert(condition, message) {
  if (!condition) {
    throw new Error(message || 'loader assertion failed.');
  }
}
//# sourceMappingURL=assert.js.map

/***/ }),

/***/ "./node_modules/@mapbox/point-geometry/index.js":
/*!******************************************************!*\
  !*** ./node_modules/@mapbox/point-geometry/index.js ***!
  \******************************************************/
/***/ ((module) => {

"use strict";


module.exports = Point;

/**
 * A standalone point geometry with useful accessor, comparison, and
 * modification methods.
 *
 * @class Point
 * @param {Number} x the x-coordinate. this could be longitude or screen
 * pixels, or any other sort of unit.
 * @param {Number} y the y-coordinate. this could be latitude or screen
 * pixels, or any other sort of unit.
 * @example
 * var point = new Point(-77, 38);
 */
function Point(x, y) {
    this.x = x;
    this.y = y;
}

Point.prototype = {

    /**
     * Clone this point, returning a new point that can be modified
     * without affecting the old one.
     * @return {Point} the clone
     */
    clone: function() { return new Point(this.x, this.y); },

    /**
     * Add this point's x & y coordinates to another point,
     * yielding a new point.
     * @param {Point} p the other point
     * @return {Point} output point
     */
    add:     function(p) { return this.clone()._add(p); },

    /**
     * Subtract this point's x & y coordinates to from point,
     * yielding a new point.
     * @param {Point} p the other point
     * @return {Point} output point
     */
    sub:     function(p) { return this.clone()._sub(p); },

    /**
     * Multiply this point's x & y coordinates by point,
     * yielding a new point.
     * @param {Point} p the other point
     * @return {Point} output point
     */
    multByPoint:    function(p) { return this.clone()._multByPoint(p); },

    /**
     * Divide this point's x & y coordinates by point,
     * yielding a new point.
     * @param {Point} p the other point
     * @return {Point} output point
     */
    divByPoint:     function(p) { return this.clone()._divByPoint(p); },

    /**
     * Multiply this point's x & y coordinates by a factor,
     * yielding a new point.
     * @param {Point} k factor
     * @return {Point} output point
     */
    mult:    function(k) { return this.clone()._mult(k); },

    /**
     * Divide this point's x & y coordinates by a factor,
     * yielding a new point.
     * @param {Point} k factor
     * @return {Point} output point
     */
    div:     function(k) { return this.clone()._div(k); },

    /**
     * Rotate this point around the 0, 0 origin by an angle a,
     * given in radians
     * @param {Number} a angle to rotate around, in radians
     * @return {Point} output point
     */
    rotate:  function(a) { return this.clone()._rotate(a); },

    /**
     * Rotate this point around p point by an angle a,
     * given in radians
     * @param {Number} a angle to rotate around, in radians
     * @param {Point} p Point to rotate around
     * @return {Point} output point
     */
    rotateAround:  function(a,p) { return this.clone()._rotateAround(a,p); },

    /**
     * Multiply this point by a 4x1 transformation matrix
     * @param {Array<Number>} m transformation matrix
     * @return {Point} output point
     */
    matMult: function(m) { return this.clone()._matMult(m); },

    /**
     * Calculate this point but as a unit vector from 0, 0, meaning
     * that the distance from the resulting point to the 0, 0
     * coordinate will be equal to 1 and the angle from the resulting
     * point to the 0, 0 coordinate will be the same as before.
     * @return {Point} unit vector point
     */
    unit:    function() { return this.clone()._unit(); },

    /**
     * Compute a perpendicular point, where the new y coordinate
     * is the old x coordinate and the new x coordinate is the old y
     * coordinate multiplied by -1
     * @return {Point} perpendicular point
     */
    perp:    function() { return this.clone()._perp(); },

    /**
     * Return a version of this point with the x & y coordinates
     * rounded to integers.
     * @return {Point} rounded point
     */
    round:   function() { return this.clone()._round(); },

    /**
     * Return the magitude of this point: this is the Euclidean
     * distance from the 0, 0 coordinate to this point's x and y
     * coordinates.
     * @return {Number} magnitude
     */
    mag: function() {
        return Math.sqrt(this.x * this.x + this.y * this.y);
    },

    /**
     * Judge whether this point is equal to another point, returning
     * true or false.
     * @param {Point} other the other point
     * @return {boolean} whether the points are equal
     */
    equals: function(other) {
        return this.x === other.x &&
               this.y === other.y;
    },

    /**
     * Calculate the distance from this point to another point
     * @param {Point} p the other point
     * @return {Number} distance
     */
    dist: function(p) {
        return Math.sqrt(this.distSqr(p));
    },

    /**
     * Calculate the distance from this point to another point,
     * without the square root step. Useful if you're comparing
     * relative distances.
     * @param {Point} p the other point
     * @return {Number} distance
     */
    distSqr: function(p) {
        var dx = p.x - this.x,
            dy = p.y - this.y;
        return dx * dx + dy * dy;
    },

    /**
     * Get the angle from the 0, 0 coordinate to this point, in radians
     * coordinates.
     * @return {Number} angle
     */
    angle: function() {
        return Math.atan2(this.y, this.x);
    },

    /**
     * Get the angle from this point to another point, in radians
     * @param {Point} b the other point
     * @return {Number} angle
     */
    angleTo: function(b) {
        return Math.atan2(this.y - b.y, this.x - b.x);
    },

    /**
     * Get the angle between this point and another point, in radians
     * @param {Point} b the other point
     * @return {Number} angle
     */
    angleWith: function(b) {
        return this.angleWithSep(b.x, b.y);
    },

    /*
     * Find the angle of the two vectors, solving the formula for
     * the cross product a x b = |a||b|sin(θ) for θ.
     * @param {Number} x the x-coordinate
     * @param {Number} y the y-coordinate
     * @return {Number} the angle in radians
     */
    angleWithSep: function(x, y) {
        return Math.atan2(
            this.x * y - this.y * x,
            this.x * x + this.y * y);
    },

    _matMult: function(m) {
        var x = m[0] * this.x + m[1] * this.y,
            y = m[2] * this.x + m[3] * this.y;
        this.x = x;
        this.y = y;
        return this;
    },

    _add: function(p) {
        this.x += p.x;
        this.y += p.y;
        return this;
    },

    _sub: function(p) {
        this.x -= p.x;
        this.y -= p.y;
        return this;
    },

    _mult: function(k) {
        this.x *= k;
        this.y *= k;
        return this;
    },

    _div: function(k) {
        this.x /= k;
        this.y /= k;
        return this;
    },

    _multByPoint: function(p) {
        this.x *= p.x;
        this.y *= p.y;
        return this;
    },

    _divByPoint: function(p) {
        this.x /= p.x;
        this.y /= p.y;
        return this;
    },

    _unit: function() {
        this._div(this.mag());
        return this;
    },

    _perp: function() {
        var y = this.y;
        this.y = this.x;
        this.x = -y;
        return this;
    },

    _rotate: function(angle) {
        var cos = Math.cos(angle),
            sin = Math.sin(angle),
            x = cos * this.x - sin * this.y,
            y = sin * this.x + cos * this.y;
        this.x = x;
        this.y = y;
        return this;
    },

    _rotateAround: function(angle, p) {
        var cos = Math.cos(angle),
            sin = Math.sin(angle),
            x = p.x + cos * (this.x - p.x) - sin * (this.y - p.y),
            y = p.y + sin * (this.x - p.x) + cos * (this.y - p.y);
        this.x = x;
        this.y = y;
        return this;
    },

    _round: function() {
        this.x = Math.round(this.x);
        this.y = Math.round(this.y);
        return this;
    }
};

/**
 * Construct a point from an array if necessary, otherwise if the input
 * is already a Point, or an unknown type, return it unchanged
 * @param {Array<Number>|Point|*} a any kind of input value
 * @return {Point} constructed point, or passed-through value.
 * @example
 * // this
 * var point = Point.convert([0, 1]);
 * // is equivalent to
 * var point = new Point(0, 1);
 */
Point.convert = function (a) {
    if (a instanceof Point) {
        return a;
    }
    if (Array.isArray(a)) {
        return new Point(a[0], a[1]);
    }
    return a;
};


/***/ }),

/***/ "./node_modules/@mapbox/vector-tile/index.js":
/*!***************************************************!*\
  !*** ./node_modules/@mapbox/vector-tile/index.js ***!
  \***************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

module.exports.VectorTile = __webpack_require__(/*! ./lib/vectortile.js */ "./node_modules/@mapbox/vector-tile/lib/vectortile.js");
module.exports.VectorTileFeature = __webpack_require__(/*! ./lib/vectortilefeature.js */ "./node_modules/@mapbox/vector-tile/lib/vectortilefeature.js");
module.exports.VectorTileLayer = __webpack_require__(/*! ./lib/vectortilelayer.js */ "./node_modules/@mapbox/vector-tile/lib/vectortilelayer.js");


/***/ }),

/***/ "./node_modules/@mapbox/vector-tile/lib/vectortile.js":
/*!************************************************************!*\
  !*** ./node_modules/@mapbox/vector-tile/lib/vectortile.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";


var VectorTileLayer = __webpack_require__(/*! ./vectortilelayer */ "./node_modules/@mapbox/vector-tile/lib/vectortilelayer.js");

module.exports = VectorTile;

function VectorTile(pbf, end) {
    this.layers = pbf.readFields(readTile, {}, end);
}

function readTile(tag, layers, pbf) {
    if (tag === 3) {
        var layer = new VectorTileLayer(pbf, pbf.readVarint() + pbf.pos);
        if (layer.length) layers[layer.name] = layer;
    }
}



/***/ }),

/***/ "./node_modules/@mapbox/vector-tile/lib/vectortilefeature.js":
/*!*******************************************************************!*\
  !*** ./node_modules/@mapbox/vector-tile/lib/vectortilefeature.js ***!
  \*******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";


var Point = __webpack_require__(/*! @mapbox/point-geometry */ "./node_modules/@mapbox/point-geometry/index.js");

module.exports = VectorTileFeature;

function VectorTileFeature(pbf, end, extent, keys, values) {
    // Public
    this.properties = {};
    this.extent = extent;
    this.type = 0;

    // Private
    this._pbf = pbf;
    this._geometry = -1;
    this._keys = keys;
    this._values = values;

    pbf.readFields(readFeature, this, end);
}

function readFeature(tag, feature, pbf) {
    if (tag == 1) feature.id = pbf.readVarint();
    else if (tag == 2) readTag(pbf, feature);
    else if (tag == 3) feature.type = pbf.readVarint();
    else if (tag == 4) feature._geometry = pbf.pos;
}

function readTag(pbf, feature) {
    var end = pbf.readVarint() + pbf.pos;

    while (pbf.pos < end) {
        var key = feature._keys[pbf.readVarint()],
            value = feature._values[pbf.readVarint()];
        feature.properties[key] = value;
    }
}

VectorTileFeature.types = ['Unknown', 'Point', 'LineString', 'Polygon'];

VectorTileFeature.prototype.loadGeometry = function() {
    var pbf = this._pbf;
    pbf.pos = this._geometry;

    var end = pbf.readVarint() + pbf.pos,
        cmd = 1,
        length = 0,
        x = 0,
        y = 0,
        lines = [],
        line;

    while (pbf.pos < end) {
        if (length <= 0) {
            var cmdLen = pbf.readVarint();
            cmd = cmdLen & 0x7;
            length = cmdLen >> 3;
        }

        length--;

        if (cmd === 1 || cmd === 2) {
            x += pbf.readSVarint();
            y += pbf.readSVarint();

            if (cmd === 1) { // moveTo
                if (line) lines.push(line);
                line = [];
            }

            line.push(new Point(x, y));

        } else if (cmd === 7) {

            // Workaround for https://github.com/mapbox/mapnik-vector-tile/issues/90
            if (line) {
                line.push(line[0].clone()); // closePolygon
            }

        } else {
            throw new Error('unknown command ' + cmd);
        }
    }

    if (line) lines.push(line);

    return lines;
};

VectorTileFeature.prototype.bbox = function() {
    var pbf = this._pbf;
    pbf.pos = this._geometry;

    var end = pbf.readVarint() + pbf.pos,
        cmd = 1,
        length = 0,
        x = 0,
        y = 0,
        x1 = Infinity,
        x2 = -Infinity,
        y1 = Infinity,
        y2 = -Infinity;

    while (pbf.pos < end) {
        if (length <= 0) {
            var cmdLen = pbf.readVarint();
            cmd = cmdLen & 0x7;
            length = cmdLen >> 3;
        }

        length--;

        if (cmd === 1 || cmd === 2) {
            x += pbf.readSVarint();
            y += pbf.readSVarint();
            if (x < x1) x1 = x;
            if (x > x2) x2 = x;
            if (y < y1) y1 = y;
            if (y > y2) y2 = y;

        } else if (cmd !== 7) {
            throw new Error('unknown command ' + cmd);
        }
    }

    return [x1, y1, x2, y2];
};

VectorTileFeature.prototype.toGeoJSON = function(x, y, z) {
    var size = this.extent * Math.pow(2, z),
        x0 = this.extent * x,
        y0 = this.extent * y,
        coords = this.loadGeometry(),
        type = VectorTileFeature.types[this.type],
        i, j;

    function project(line) {
        for (var j = 0; j < line.length; j++) {
            var p = line[j], y2 = 180 - (p.y + y0) * 360 / size;
            line[j] = [
                (p.x + x0) * 360 / size - 180,
                360 / Math.PI * Math.atan(Math.exp(y2 * Math.PI / 180)) - 90
            ];
        }
    }

    switch (this.type) {
    case 1:
        var points = [];
        for (i = 0; i < coords.length; i++) {
            points[i] = coords[i][0];
        }
        coords = points;
        project(coords);
        break;

    case 2:
        for (i = 0; i < coords.length; i++) {
            project(coords[i]);
        }
        break;

    case 3:
        coords = classifyRings(coords);
        for (i = 0; i < coords.length; i++) {
            for (j = 0; j < coords[i].length; j++) {
                project(coords[i][j]);
            }
        }
        break;
    }

    if (coords.length === 1) {
        coords = coords[0];
    } else {
        type = 'Multi' + type;
    }

    var result = {
        type: "Feature",
        geometry: {
            type: type,
            coordinates: coords
        },
        properties: this.properties
    };

    if ('id' in this) {
        result.id = this.id;
    }

    return result;
};

// classifies an array of rings into polygons with outer rings and holes

function classifyRings(rings) {
    var len = rings.length;

    if (len <= 1) return [rings];

    var polygons = [],
        polygon,
        ccw;

    for (var i = 0; i < len; i++) {
        var area = signedArea(rings[i]);
        if (area === 0) continue;

        if (ccw === undefined) ccw = area < 0;

        if (ccw === area < 0) {
            if (polygon) polygons.push(polygon);
            polygon = [rings[i]];

        } else {
            polygon.push(rings[i]);
        }
    }
    if (polygon) polygons.push(polygon);

    return polygons;
}

function signedArea(ring) {
    var sum = 0;
    for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) {
        p1 = ring[i];
        p2 = ring[j];
        sum += (p2.x - p1.x) * (p1.y + p2.y);
    }
    return sum;
}


/***/ }),

/***/ "./node_modules/@mapbox/vector-tile/lib/vectortilelayer.js":
/*!*****************************************************************!*\
  !*** ./node_modules/@mapbox/vector-tile/lib/vectortilelayer.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";


var VectorTileFeature = __webpack_require__(/*! ./vectortilefeature.js */ "./node_modules/@mapbox/vector-tile/lib/vectortilefeature.js");

module.exports = VectorTileLayer;

function VectorTileLayer(pbf, end) {
    // Public
    this.version = 1;
    this.name = null;
    this.extent = 4096;
    this.length = 0;

    // Private
    this._pbf = pbf;
    this._keys = [];
    this._values = [];
    this._features = [];

    pbf.readFields(readLayer, this, end);

    this.length = this._features.length;
}

function readLayer(tag, layer, pbf) {
    if (tag === 15) layer.version = pbf.readVarint();
    else if (tag === 1) layer.name = pbf.readString();
    else if (tag === 5) layer.extent = pbf.readVarint();
    else if (tag === 2) layer._features.push(pbf.pos);
    else if (tag === 3) layer._keys.push(pbf.readString());
    else if (tag === 4) layer._values.push(readValueMessage(pbf));
}

function readValueMessage(pbf) {
    var value = null,
        end = pbf.readVarint() + pbf.pos;

    while (pbf.pos < end) {
        var tag = pbf.readVarint() >> 3;

        value = tag === 1 ? pbf.readString() :
            tag === 2 ? pbf.readFloat() :
            tag === 3 ? pbf.readDouble() :
            tag === 4 ? pbf.readVarint64() :
            tag === 5 ? pbf.readVarint() :
            tag === 6 ? pbf.readSVarint() :
            tag === 7 ? pbf.readBoolean() : null;
    }

    return value;
}

// return feature `i` from this layer as a `VectorTileFeature`
VectorTileLayer.prototype.feature = function(i) {
    if (i < 0 || i >= this._features.length) throw new Error('feature index out of bounds');

    this._pbf.pos = this._features[i];

    var end = this._pbf.readVarint() + this._pbf.pos;
    return new VectorTileFeature(this._pbf, end, this.extent, this._keys, this._values);
};


/***/ }),

/***/ "./node_modules/@tmcw/togeojson/dist/togeojson.umd.js":
/*!************************************************************!*\
  !*** ./node_modules/@tmcw/togeojson/dist/togeojson.umd.js ***!
  \************************************************************/
/***/ (function(__unused_webpack_module, exports) {

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//# sourceMappingURL=togeojson.umd.js.map


/***/ }),

/***/ "./node_modules/@tweenjs/tween.js/dist/tween.esm.js":
/*!**********************************************************!*\
  !*** ./node_modules/@tweenjs/tween.js/dist/tween.esm.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__),
/* harmony export */   "Easing": () => (/* binding */ Easing),
/* harmony export */   "Group": () => (/* binding */ Group),
/* harmony export */   "Interpolation": () => (/* binding */ Interpolation),
/* harmony export */   "Sequence": () => (/* binding */ Sequence),
/* harmony export */   "Tween": () => (/* binding */ Tween),
/* harmony export */   "VERSION": () => (/* binding */ VERSION),
/* harmony export */   "add": () => (/* binding */ add),
/* harmony export */   "getAll": () => (/* binding */ getAll),
/* harmony export */   "nextId": () => (/* binding */ nextId),
/* harmony export */   "now": () => (/* binding */ now$1),
/* harmony export */   "remove": () => (/* binding */ remove),
/* harmony export */   "removeAll": () => (/* binding */ removeAll),
/* harmony export */   "update": () => (/* binding */ update)
/* harmony export */ });
/**
 * The Ease class provides a collection of easing functions for use with tween.js.
 */
var Easing = {
    Linear: {
        None: function (amount) {
            return amount;
        },
    },
    Quadratic: {
        In: function (amount) {
            return amount * amount;
        },
        Out: function (amount) {
            return amount * (2 - amount);
        },
        InOut: function (amount) {
            if ((amount *= 2) < 1) {
                return 0.5 * amount * amount;
            }
            return -0.5 * (--amount * (amount - 2) - 1);
        },
    },
    Cubic: {
        In: function (amount) {
            return amount * amount * amount;
        },
        Out: function (amount) {
            return --amount * amount * amount + 1;
        },
        InOut: function (amount) {
            if ((amount *= 2) < 1) {
                return 0.5 * amount * amount * amount;
            }
            return 0.5 * ((amount -= 2) * amount * amount + 2);
        },
    },
    Quartic: {
        In: function (amount) {
            return amount * amount * amount * amount;
        },
        Out: function (amount) {
            return 1 - --amount * amount * amount * amount;
        },
        InOut: function (amount) {
            if ((amount *= 2) < 1) {
                return 0.5 * amount * amount * amount * amount;
            }
            return -0.5 * ((amount -= 2) * amount * amount * amount - 2);
        },
    },
    Quintic: {
        In: function (amount) {
            return amount * amount * amount * amount * amount;
        },
        Out: function (amount) {
            return --amount * amount * amount * amount * amount + 1;
        },
        InOut: function (amount) {
            if ((amount *= 2) < 1) {
                return 0.5 * amount * amount * amount * amount * amount;
            }
            return 0.5 * ((amount -= 2) * amount * amount * amount * amount + 2);
        },
    },
    Sinusoidal: {
        In: function (amount) {
            return 1 - Math.cos((amount * Math.PI) / 2);
        },
        Out: function (amount) {
            return Math.sin((amount * Math.PI) / 2);
        },
        InOut: function (amount) {
            return 0.5 * (1 - Math.cos(Math.PI * amount));
        },
    },
    Exponential: {
        In: function (amount) {
            return amount === 0 ? 0 : Math.pow(1024, amount - 1);
        },
        Out: function (amount) {
            return amount === 1 ? 1 : 1 - Math.pow(2, -10 * amount);
        },
        InOut: function (amount) {
            if (amount === 0) {
                return 0;
            }
            if (amount === 1) {
                return 1;
            }
            if ((amount *= 2) < 1) {
                return 0.5 * Math.pow(1024, amount - 1);
            }
            return 0.5 * (-Math.pow(2, -10 * (amount - 1)) + 2);
        },
    },
    Circular: {
        In: function (amount) {
            return 1 - Math.sqrt(1 - amount * amount);
        },
        Out: function (amount) {
            return Math.sqrt(1 - --amount * amount);
        },
        InOut: function (amount) {
            if ((amount *= 2) < 1) {
                return -0.5 * (Math.sqrt(1 - amount * amount) - 1);
            }
            return 0.5 * (Math.sqrt(1 - (amount -= 2) * amount) + 1);
        },
    },
    Elastic: {
        In: function (amount) {
            if (amount === 0) {
                return 0;
            }
            if (amount === 1) {
                return 1;
            }
            return -Math.pow(2, 10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI);
        },
        Out: function (amount) {
            if (amount === 0) {
                return 0;
            }
            if (amount === 1) {
                return 1;
            }
            return Math.pow(2, -10 * amount) * Math.sin((amount - 0.1) * 5 * Math.PI) + 1;
        },
        InOut: function (amount) {
            if (amount === 0) {
                return 0;
            }
            if (amount === 1) {
                return 1;
            }
            amount *= 2;
            if (amount < 1) {
                return -0.5 * Math.pow(2, 10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI);
            }
            return 0.5 * Math.pow(2, -10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI) + 1;
        },
    },
    Back: {
        In: function (amount) {
            var s = 1.70158;
            return amount * amount * ((s + 1) * amount - s);
        },
        Out: function (amount) {
            var s = 1.70158;
            return --amount * amount * ((s + 1) * amount + s) + 1;
        },
        InOut: function (amount) {
            var s = 1.70158 * 1.525;
            if ((amount *= 2) < 1) {
                return 0.5 * (amount * amount * ((s + 1) * amount - s));
            }
            return 0.5 * ((amount -= 2) * amount * ((s + 1) * amount + s) + 2);
        },
    },
    Bounce: {
        In: function (amount) {
            return 1 - Easing.Bounce.Out(1 - amount);
        },
        Out: function (amount) {
            if (amount < 1 / 2.75) {
                return 7.5625 * amount * amount;
            }
            else if (amount < 2 / 2.75) {
                return 7.5625 * (amount -= 1.5 / 2.75) * amount + 0.75;
            }
            else if (amount < 2.5 / 2.75) {
                return 7.5625 * (amount -= 2.25 / 2.75) * amount + 0.9375;
            }
            else {
                return 7.5625 * (amount -= 2.625 / 2.75) * amount + 0.984375;
            }
        },
        InOut: function (amount) {
            if (amount < 0.5) {
                return Easing.Bounce.In(amount * 2) * 0.5;
            }
            return Easing.Bounce.Out(amount * 2 - 1) * 0.5 + 0.5;
        },
    },
};

var now;
// Include a performance.now polyfill.
// In node.js, use process.hrtime.
// eslint-disable-next-line
// @ts-ignore
if (typeof self === 'undefined' && typeof process !== 'undefined' && process.hrtime) {
    now = function () {
        // eslint-disable-next-line
        // @ts-ignore
        var time = process.hrtime();
        // Convert [seconds, nanoseconds] to milliseconds.
        return time[0] * 1000 + time[1] / 1000000;
    };
}
// In a browser, use self.performance.now if it is available.
else if (typeof self !== 'undefined' && self.performance !== undefined && self.performance.now !== undefined) {
    // This must be bound, because directly assigning this function
    // leads to an invocation exception in Chrome.
    now = self.performance.now.bind(self.performance);
}
// Use Date.now if it is available.
else if (Date.now !== undefined) {
    now = Date.now;
}
// Otherwise, use 'new Date().getTime()'.
else {
    now = function () {
        return new Date().getTime();
    };
}
var now$1 = now;

/**
 * Controlling groups of tweens
 *
 * Using the TWEEN singleton to manage your tweens can cause issues in large apps with many components.
 * In these cases, you may want to create your own smaller groups of tween
 */
var Group = /** @class */ (function () {
    function Group() {
        this._tweens = {};
        this._tweensAddedDuringUpdate = {};
    }
    Group.prototype.getAll = function () {
        var _this = this;
        return Object.keys(this._tweens).map(function (tweenId) {
            return _this._tweens[tweenId];
        });
    };
    Group.prototype.removeAll = function () {
        this._tweens = {};
    };
    Group.prototype.add = function (tween) {
        this._tweens[tween.getId()] = tween;
        this._tweensAddedDuringUpdate[tween.getId()] = tween;
    };
    Group.prototype.remove = function (tween) {
        delete this._tweens[tween.getId()];
        delete this._tweensAddedDuringUpdate[tween.getId()];
    };
    Group.prototype.update = function (time, preserve) {
        if (time === void 0) { time = now$1(); }
        if (preserve === void 0) { preserve = false; }
        var tweenIds = Object.keys(this._tweens);
        if (tweenIds.length === 0) {
            return false;
        }
        // Tweens are updated in "batches". If you add a new tween during an
        // update, then the new tween will be updated in the next batch.
        // If you remove a tween during an update, it may or may not be updated.
        // However, if the removed tween was added during the current batch,
        // then it will not be updated.
        while (tweenIds.length > 0) {
            this._tweensAddedDuringUpdate = {};
            for (var i = 0; i < tweenIds.length; i++) {
                var tween = this._tweens[tweenIds[i]];
                var autoStart = !preserve;
                if (tween && tween.update(time, autoStart) === false && !preserve) {
                    delete this._tweens[tweenIds[i]];
                }
            }
            tweenIds = Object.keys(this._tweensAddedDuringUpdate);
        }
        return true;
    };
    return Group;
}());

/**
 *
 */
var Interpolation = {
    Linear: function (v, k) {
        var m = v.length - 1;
        var f = m * k;
        var i = Math.floor(f);
        var fn = Interpolation.Utils.Linear;
        if (k < 0) {
            return fn(v[0], v[1], f);
        }
        if (k > 1) {
            return fn(v[m], v[m - 1], m - f);
        }
        return fn(v[i], v[i + 1 > m ? m : i + 1], f - i);
    },
    Bezier: function (v, k) {
        var b = 0;
        var n = v.length - 1;
        var pw = Math.pow;
        var bn = Interpolation.Utils.Bernstein;
        for (var i = 0; i <= n; i++) {
            b += pw(1 - k, n - i) * pw(k, i) * v[i] * bn(n, i);
        }
        return b;
    },
    CatmullRom: function (v, k) {
        var m = v.length - 1;
        var f = m * k;
        var i = Math.floor(f);
        var fn = Interpolation.Utils.CatmullRom;
        if (v[0] === v[m]) {
            if (k < 0) {
                i = Math.floor((f = m * (1 + k)));
            }
            return fn(v[(i - 1 + m) % m], v[i], v[(i + 1) % m], v[(i + 2) % m], f - i);
        }
        else {
            if (k < 0) {
                return v[0] - (fn(v[0], v[0], v[1], v[1], -f) - v[0]);
            }
            if (k > 1) {
                return v[m] - (fn(v[m], v[m], v[m - 1], v[m - 1], f - m) - v[m]);
            }
            return fn(v[i ? i - 1 : 0], v[i], v[m < i + 1 ? m : i + 1], v[m < i + 2 ? m : i + 2], f - i);
        }
    },
    Utils: {
        Linear: function (p0, p1, t) {
            return (p1 - p0) * t + p0;
        },
        Bernstein: function (n, i) {
            var fc = Interpolation.Utils.Factorial;
            return fc(n) / fc(i) / fc(n - i);
        },
        Factorial: (function () {
            var a = [1];
            return function (n) {
                var s = 1;
                if (a[n]) {
                    return a[n];
                }
                for (var i = n; i > 1; i--) {
                    s *= i;
                }
                a[n] = s;
                return s;
            };
        })(),
        CatmullRom: function (p0, p1, p2, p3, t) {
            var v0 = (p2 - p0) * 0.5;
            var v1 = (p3 - p1) * 0.5;
            var t2 = t * t;
            var t3 = t * t2;
            return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (-3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
        },
    },
};

/**
 * Utils
 */
var Sequence = /** @class */ (function () {
    function Sequence() {
    }
    Sequence.nextId = function () {
        return Sequence._nextId++;
    };
    Sequence._nextId = 0;
    return Sequence;
}());

var mainGroup = new Group();

/**
 * Tween.js - Licensed under the MIT license
 * https://github.com/tweenjs/tween.js
 * ----------------------------------------------
 *
 * See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
 * Thank you all, you're awesome!
 */
var Tween = /** @class */ (function () {
    function Tween(_object, _group) {
        if (_group === void 0) { _group = mainGroup; }
        this._object = _object;
        this._group = _group;
        this._isPaused = false;
        this._pauseStart = 0;
        this._valuesStart = {};
        this._valuesEnd = {};
        this._valuesStartRepeat = {};
        this._duration = 1000;
        this._initialRepeat = 0;
        this._repeat = 0;
        this._yoyo = false;
        this._isPlaying = false;
        this._reversed = false;
        this._delayTime = 0;
        this._startTime = 0;
        this._easingFunction = Easing.Linear.None;
        this._interpolationFunction = Interpolation.Linear;
        this._chainedTweens = [];
        this._onStartCallbackFired = false;
        this._id = Sequence.nextId();
        this._isChainStopped = false;
        this._goToEnd = false;
    }
    Tween.prototype.getId = function () {
        return this._id;
    };
    Tween.prototype.isPlaying = function () {
        return this._isPlaying;
    };
    Tween.prototype.isPaused = function () {
        return this._isPaused;
    };
    Tween.prototype.to = function (properties, duration) {
        // TODO? restore this, then update the 07_dynamic_to example to set fox
        // tween's to on each update. That way the behavior is opt-in (there's
        // currently no opt-out).
        // for (const prop in properties) this._valuesEnd[prop] = properties[prop]
        this._valuesEnd = Object.create(properties);
        if (duration !== undefined) {
            this._duration = duration;
        }
        return this;
    };
    Tween.prototype.duration = function (d) {
        this._duration = d;
        return this;
    };
    Tween.prototype.start = function (time) {
        if (this._isPlaying) {
            return this;
        }
        // eslint-disable-next-line
        this._group && this._group.add(this);
        this._repeat = this._initialRepeat;
        if (this._reversed) {
            // If we were reversed (f.e. using the yoyo feature) then we need to
            // flip the tween direction back to forward.
            this._reversed = false;
            for (var property in this._valuesStartRepeat) {
                this._swapEndStartRepeatValues(property);
                this._valuesStart[property] = this._valuesStartRepeat[property];
            }
        }
        this._isPlaying = true;
        this._isPaused = false;
        this._onStartCallbackFired = false;
        this._isChainStopped = false;
        this._startTime = time !== undefined ? (typeof time === 'string' ? now$1() + parseFloat(time) : time) : now$1();
        this._startTime += this._delayTime;
        this._setupProperties(this._object, this._valuesStart, this._valuesEnd, this._valuesStartRepeat);
        return this;
    };
    Tween.prototype._setupProperties = function (_object, _valuesStart, _valuesEnd, _valuesStartRepeat) {
        for (var property in _valuesEnd) {
            var startValue = _object[property];
            var startValueIsArray = Array.isArray(startValue);
            var propType = startValueIsArray ? 'array' : typeof startValue;
            var isInterpolationList = !startValueIsArray && Array.isArray(_valuesEnd[property]);
            // If `to()` specifies a property that doesn't exist in the source object,
            // we should not set that property in the object
            if (propType === 'undefined' || propType === 'function') {
                continue;
            }
            // Check if an Array was provided as property value
            if (isInterpolationList) {
                var endValues = _valuesEnd[property];
                if (endValues.length === 0) {
                    continue;
                }
                // handle an array of relative values
                endValues = endValues.map(this._handleRelativeValue.bind(this, startValue));
                // Create a local copy of the Array with the start value at the front
                _valuesEnd[property] = [startValue].concat(endValues);
            }
            // handle the deepness of the values
            if ((propType === 'object' || startValueIsArray) && startValue && !isInterpolationList) {
                _valuesStart[property] = startValueIsArray ? [] : {};
                // eslint-disable-next-line
                for (var prop in startValue) {
                    // eslint-disable-next-line
                    // @ts-ignore FIXME?
                    _valuesStart[property][prop] = startValue[prop];
                }
                _valuesStartRepeat[property] = startValueIsArray ? [] : {}; // TODO? repeat nested values? And yoyo? And array values?
                // eslint-disable-next-line
                // @ts-ignore FIXME?
                this._setupProperties(startValue, _valuesStart[property], _valuesEnd[property], _valuesStartRepeat[property]);
            }
            else {
                // Save the starting value, but only once.
                if (typeof _valuesStart[property] === 'undefined') {
                    _valuesStart[property] = startValue;
                }
                if (!startValueIsArray) {
                    // eslint-disable-next-line
                    // @ts-ignore FIXME?
                    _valuesStart[property] *= 1.0; // Ensures we're using numbers, not strings
                }
                if (isInterpolationList) {
                    // eslint-disable-next-line
                    // @ts-ignore FIXME?
                    _valuesStartRepeat[property] = _valuesEnd[property].slice().reverse();
                }
                else {
                    _valuesStartRepeat[property] = _valuesStart[property] || 0;
                }
            }
        }
    };
    Tween.prototype.stop = function () {
        if (!this._isChainStopped) {
            this._isChainStopped = true;
            this.stopChainedTweens();
        }
        if (!this._isPlaying) {
            return this;
        }
        // eslint-disable-next-line
        this._group && this._group.remove(this);
        this._isPlaying = false;
        this._isPaused = false;
        if (this._onStopCallback) {
            this._onStopCallback(this._object);
        }
        return this;
    };
    Tween.prototype.end = function () {
        this._goToEnd = true;
        this.update(Infinity);
        return this;
    };
    Tween.prototype.pause = function (time) {
        if (time === void 0) { time = now$1(); }
        if (this._isPaused || !this._isPlaying) {
            return this;
        }
        this._isPaused = true;
        this._pauseStart = time;
        // eslint-disable-next-line
        this._group && this._group.remove(this);
        return this;
    };
    Tween.prototype.resume = function (time) {
        if (time === void 0) { time = now$1(); }
        if (!this._isPaused || !this._isPlaying) {
            return this;
        }
        this._isPaused = false;
        this._startTime += time - this._pauseStart;
        this._pauseStart = 0;
        // eslint-disable-next-line
        this._group && this._group.add(this);
        return this;
    };
    Tween.prototype.stopChainedTweens = function () {
        for (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
            this._chainedTweens[i].stop();
        }
        return this;
    };
    Tween.prototype.group = function (group) {
        this._group = group;
        return this;
    };
    Tween.prototype.delay = function (amount) {
        this._delayTime = amount;
        return this;
    };
    Tween.prototype.repeat = function (times) {
        this._initialRepeat = times;
        this._repeat = times;
        return this;
    };
    Tween.prototype.repeatDelay = function (amount) {
        this._repeatDelayTime = amount;
        return this;
    };
    Tween.prototype.yoyo = function (yoyo) {
        this._yoyo = yoyo;
        return this;
    };
    Tween.prototype.easing = function (easingFunction) {
        this._easingFunction = easingFunction;
        return this;
    };
    Tween.prototype.interpolation = function (interpolationFunction) {
        this._interpolationFunction = interpolationFunction;
        return this;
    };
    Tween.prototype.chain = function () {
        var tweens = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            tweens[_i] = arguments[_i];
        }
        this._chainedTweens = tweens;
        return this;
    };
    Tween.prototype.onStart = function (callback) {
        this._onStartCallback = callback;
        return this;
    };
    Tween.prototype.onUpdate = function (callback) {
        this._onUpdateCallback = callback;
        return this;
    };
    Tween.prototype.onRepeat = function (callback) {
        this._onRepeatCallback = callback;
        return this;
    };
    Tween.prototype.onComplete = function (callback) {
        this._onCompleteCallback = callback;
        return this;
    };
    Tween.prototype.onStop = function (callback) {
        this._onStopCallback = callback;
        return this;
    };
    /**
     * @returns true if the tween is still playing after the update, false
     * otherwise (calling update on a paused tween still returns true because
     * it is still playing, just paused).
     */
    Tween.prototype.update = function (time, autoStart) {
        if (time === void 0) { time = now$1(); }
        if (autoStart === void 0) { autoStart = true; }
        if (this._isPaused)
            return true;
        var property;
        var elapsed;
        var endTime = this._startTime + this._duration;
        if (!this._goToEnd && !this._isPlaying) {
            if (time > endTime)
                return false;
            if (autoStart)
                this.start(time);
        }
        this._goToEnd = false;
        if (time < this._startTime) {
            return true;
        }
        if (this._onStartCallbackFired === false) {
            if (this._onStartCallback) {
                this._onStartCallback(this._object);
            }
            this._onStartCallbackFired = true;
        }
        elapsed = (time - this._startTime) / this._duration;
        elapsed = this._duration === 0 || elapsed > 1 ? 1 : elapsed;
        var value = this._easingFunction(elapsed);
        // properties transformations
        this._updateProperties(this._object, this._valuesStart, this._valuesEnd, value);
        if (this._onUpdateCallback) {
            this._onUpdateCallback(this._object, elapsed);
        }
        if (elapsed === 1) {
            if (this._repeat > 0) {
                if (isFinite(this._repeat)) {
                    this._repeat--;
                }
                // Reassign starting values, restart by making startTime = now
                for (property in this._valuesStartRepeat) {
                    if (!this._yoyo && typeof this._valuesEnd[property] === 'string') {
                        this._valuesStartRepeat[property] =
                            // eslint-disable-next-line
                            // @ts-ignore FIXME?
                            this._valuesStartRepeat[property] + parseFloat(this._valuesEnd[property]);
                    }
                    if (this._yoyo) {
                        this._swapEndStartRepeatValues(property);
                    }
                    this._valuesStart[property] = this._valuesStartRepeat[property];
                }
                if (this._yoyo) {
                    this._reversed = !this._reversed;
                }
                if (this._repeatDelayTime !== undefined) {
                    this._startTime = time + this._repeatDelayTime;
                }
                else {
                    this._startTime = time + this._delayTime;
                }
                if (this._onRepeatCallback) {
                    this._onRepeatCallback(this._object);
                }
                return true;
            }
            else {
                if (this._onCompleteCallback) {
                    this._onCompleteCallback(this._object);
                }
                for (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
                    // Make the chained tweens start exactly at the time they should,
                    // even if the `update()` method was called way past the duration of the tween
                    this._chainedTweens[i].start(this._startTime + this._duration);
                }
                this._isPlaying = false;
                return false;
            }
        }
        return true;
    };
    Tween.prototype._updateProperties = function (_object, _valuesStart, _valuesEnd, value) {
        for (var property in _valuesEnd) {
            // Don't update properties that do not exist in the source object
            if (_valuesStart[property] === undefined) {
                continue;
            }
            var start = _valuesStart[property] || 0;
            var end = _valuesEnd[property];
            var startIsArray = Array.isArray(_object[property]);
            var endIsArray = Array.isArray(end);
            var isInterpolationList = !startIsArray && endIsArray;
            if (isInterpolationList) {
                _object[property] = this._interpolationFunction(end, value);
            }
            else if (typeof end === 'object' && end) {
                // eslint-disable-next-line
                // @ts-ignore FIXME?
                this._updateProperties(_object[property], start, end, value);
            }
            else {
                // Parses relative end values with start as base (e.g.: +10, -3)
                end = this._handleRelativeValue(start, end);
                // Protect against non numeric properties.
                if (typeof end === 'number') {
                    // eslint-disable-next-line
                    // @ts-ignore FIXME?
                    _object[property] = start + (end - start) * value;
                }
            }
        }
    };
    Tween.prototype._handleRelativeValue = function (start, end) {
        if (typeof end !== 'string') {
            return end;
        }
        if (end.charAt(0) === '+' || end.charAt(0) === '-') {
            return start + parseFloat(end);
        }
        else {
            return parseFloat(end);
        }
    };
    Tween.prototype._swapEndStartRepeatValues = function (property) {
        var tmp = this._valuesStartRepeat[property];
        var endValue = this._valuesEnd[property];
        if (typeof endValue === 'string') {
            this._valuesStartRepeat[property] = this._valuesStartRepeat[property] + parseFloat(endValue);
        }
        else {
            this._valuesStartRepeat[property] = this._valuesEnd[property];
        }
        this._valuesEnd[property] = tmp;
    };
    return Tween;
}());

var VERSION = '18.6.4';

/**
 * Tween.js - Licensed under the MIT license
 * https://github.com/tweenjs/tween.js
 * ----------------------------------------------
 *
 * See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
 * Thank you all, you're awesome!
 */
var nextId = Sequence.nextId;
/**
 * Controlling groups of tweens
 *
 * Using the TWEEN singleton to manage your tweens can cause issues in large apps with many components.
 * In these cases, you may want to create your own smaller groups of tweens.
 */
var TWEEN = mainGroup;
// This is the best way to export things in a way that's compatible with both ES
// Modules and CommonJS, without build hacks, and so as not to break the
// existing API.
// https://github.com/rollup/rollup/issues/1961#issuecomment-423037881
var getAll = TWEEN.getAll.bind(TWEEN);
var removeAll = TWEEN.removeAll.bind(TWEEN);
var add = TWEEN.add.bind(TWEEN);
var remove = TWEEN.remove.bind(TWEEN);
var update = TWEEN.update.bind(TWEEN);
var exports = {
    Easing: Easing,
    Group: Group,
    Interpolation: Interpolation,
    now: now$1,
    Sequence: Sequence,
    nextId: nextId,
    Tween: Tween,
    VERSION: VERSION,
    getAll: getAll,
    removeAll: removeAll,
    add: add,
    remove: remove,
    update: update,
};

/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (exports);



/***/ }),

/***/ "./node_modules/base64-js/index.js":
/*!*****************************************!*\
  !*** ./node_modules/base64-js/index.js ***!
  \*****************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray

var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array

var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
  lookup[i] = code[i]
  revLookup[code.charCodeAt(i)] = i
}

// Support decoding URL-safe base64 strings, as Node.js does.
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63

function getLens (b64) {
  var len = b64.length

  if (len % 4 > 0) {
    throw new Error('Invalid string. Length must be a multiple of 4')
  }

  // Trim off extra bytes after placeholder bytes are found
  // See: https://github.com/beatgammit/base64-js/issues/42
  var validLen = b64.indexOf('=')
  if (validLen === -1) validLen = len

  var placeHoldersLen = validLen === len
    ? 0
    : 4 - (validLen % 4)

  return [validLen, placeHoldersLen]
}

// base64 is 4/3 + up to two characters of the original data
function byteLength (b64) {
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function _byteLength (b64, validLen, placeHoldersLen) {
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function toByteArray (b64) {
  var tmp
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]

  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))

  var curByte = 0

  // if there are placeholders, only get up to the last complete 4 chars
  var len = placeHoldersLen > 0
    ? validLen - 4
    : validLen

  var i
  for (i = 0; i < len; i += 4) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 18) |
      (revLookup[b64.charCodeAt(i + 1)] << 12) |
      (revLookup[b64.charCodeAt(i + 2)] << 6) |
      revLookup[b64.charCodeAt(i + 3)]
    arr[curByte++] = (tmp >> 16) & 0xFF
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 2) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 2) |
      (revLookup[b64.charCodeAt(i + 1)] >> 4)
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 1) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 10) |
      (revLookup[b64.charCodeAt(i + 1)] << 4) |
      (revLookup[b64.charCodeAt(i + 2)] >> 2)
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  return arr
}

function tripletToBase64 (num) {
  return lookup[num >> 18 & 0x3F] +
    lookup[num >> 12 & 0x3F] +
    lookup[num >> 6 & 0x3F] +
    lookup[num & 0x3F]
}

function encodeChunk (uint8, start, end) {
  var tmp
  var output = []
  for (var i = start; i < end; i += 3) {
    tmp =
      ((uint8[i] << 16) & 0xFF0000) +
      ((uint8[i + 1] << 8) & 0xFF00) +
      (uint8[i + 2] & 0xFF)
    output.push(tripletToBase64(tmp))
  }
  return output.join('')
}

function fromByteArray (uint8) {
  var tmp
  var len = uint8.length
  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
  var parts = []
  var maxChunkLength = 16383 // must be multiple of 3

  // go through the array every three bytes, we'll deal with trailing stuff later
  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
  }

  // pad the end with zeros, but make sure to not forget the extra bytes
  if (extraBytes === 1) {
    tmp = uint8[len - 1]
    parts.push(
      lookup[tmp >> 2] +
      lookup[(tmp << 4) & 0x3F] +
      '=='
    )
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + uint8[len - 1]
    parts.push(
      lookup[tmp >> 10] +
      lookup[(tmp >> 4) & 0x3F] +
      lookup[(tmp << 2) & 0x3F] +
      '='
    )
  }

  return parts.join('')
}


/***/ }),

/***/ "./node_modules/buffer/index.js":
/*!**************************************!*\
  !*** ./node_modules/buffer/index.js ***!
  \**************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <https://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */



const base64 = __webpack_require__(/*! base64-js */ "./node_modules/base64-js/index.js")
const ieee754 = __webpack_require__(/*! ieee754 */ "./node_modules/ieee754/index.js")
const customInspectSymbol =
  (typeof Symbol === 'function' && typeof Symbol['for'] === 'function') // eslint-disable-line dot-notation
    ? Symbol['for']('nodejs.util.inspect.custom') // eslint-disable-line dot-notation
    : null

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50

const K_MAX_LENGTH = 0x7fffffff
exports.kMaxLength = K_MAX_LENGTH

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Print warning and recommend using `buffer` v4.x which has an Object
 *               implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * We report that the browser does not support typed arrays if the are not subclassable
 * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
 * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
 * for __proto__ and has a buggy typed array implementation.
 */
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()

if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
    typeof console.error === 'function') {
  console.error(
    'This browser lacks typed array (Uint8Array) support which is required by ' +
    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
  )
}

function typedArraySupport () {
  // Can typed array instances can be augmented?
  try {
    const arr = new Uint8Array(1)
    const proto = { foo: function () { return 42 } }
    Object.setPrototypeOf(proto, Uint8Array.prototype)
    Object.setPrototypeOf(arr, proto)
    return arr.foo() === 42
  } catch (e) {
    return false
  }
}

Object.defineProperty(Buffer.prototype, 'parent', {
  enumerable: true,
  get: function () {
    if (!Buffer.isBuffer(this)) return undefined
    return this.buffer
  }
})

Object.defineProperty(Buffer.prototype, 'offset', {
  enumerable: true,
  get: function () {
    if (!Buffer.isBuffer(this)) return undefined
    return this.byteOffset
  }
})

function createBuffer (length) {
  if (length > K_MAX_LENGTH) {
    throw new RangeError('The value "' + length + '" is invalid for option "size"')
  }
  // Return an augmented `Uint8Array` instance
  const buf = new Uint8Array(length)
  Object.setPrototypeOf(buf, Buffer.prototype)
  return buf
}

/**
 * The Buffer constructor returns instances of `Uint8Array` that have their
 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
 * returns a single octet.
 *
 * The `Uint8Array` prototype remains unmodified.
 */

function Buffer (arg, encodingOrOffset, length) {
  // Common case.
  if (typeof arg === 'number') {
    if (typeof encodingOrOffset === 'string') {
      throw new TypeError(
        'The "string" argument must be of type string. Received type number'
      )
    }
    return allocUnsafe(arg)
  }
  return from(arg, encodingOrOffset, length)
}

Buffer.poolSize = 8192 // not used by this implementation

function from (value, encodingOrOffset, length) {
  if (typeof value === 'string') {
    return fromString(value, encodingOrOffset)
  }

  if (ArrayBuffer.isView(value)) {
    return fromArrayView(value)
  }

  if (value == null) {
    throw new TypeError(
      'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
      'or Array-like Object. Received type ' + (typeof value)
    )
  }

  if (isInstance(value, ArrayBuffer) ||
      (value && isInstance(value.buffer, ArrayBuffer))) {
    return fromArrayBuffer(value, encodingOrOffset, length)
  }

  if (typeof SharedArrayBuffer !== 'undefined' &&
      (isInstance(value, SharedArrayBuffer) ||
      (value && isInstance(value.buffer, SharedArrayBuffer)))) {
    return fromArrayBuffer(value, encodingOrOffset, length)
  }

  if (typeof value === 'number') {
    throw new TypeError(
      'The "value" argument must not be of type number. Received type number'
    )
  }

  const valueOf = value.valueOf && value.valueOf()
  if (valueOf != null && valueOf !== value) {
    return Buffer.from(valueOf, encodingOrOffset, length)
  }

  const b = fromObject(value)
  if (b) return b

  if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
      typeof value[Symbol.toPrimitive] === 'function') {
    return Buffer.from(value[Symbol.toPrimitive]('string'), encodingOrOffset, length)
  }

  throw new TypeError(
    'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
    'or Array-like Object. Received type ' + (typeof value)
  )
}

/**
 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
 * if value is a number.
 * Buffer.from(str[, encoding])
 * Buffer.from(array)
 * Buffer.from(buffer)
 * Buffer.from(arrayBuffer[, byteOffset[, length]])
 **/
Buffer.from = function (value, encodingOrOffset, length) {
  return from(value, encodingOrOffset, length)
}

// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
// https://github.com/feross/buffer/pull/148
Object.setPrototypeOf(Buffer.prototype, Uint8Array.prototype)
Object.setPrototypeOf(Buffer, Uint8Array)

function assertSize (size) {
  if (typeof size !== 'number') {
    throw new TypeError('"size" argument must be of type number')
  } else if (size < 0) {
    throw new RangeError('The value "' + size + '" is invalid for option "size"')
  }
}

function alloc (size, fill, encoding) {
  assertSize(size)
  if (size <= 0) {
    return createBuffer(size)
  }
  if (fill !== undefined) {
    // Only pay attention to encoding if it's a string. This
    // prevents accidentally sending in a number that would
    // be interpreted as a start offset.
    return typeof encoding === 'string'
      ? createBuffer(size).fill(fill, encoding)
      : createBuffer(size).fill(fill)
  }
  return createBuffer(size)
}

/**
 * Creates a new filled Buffer instance.
 * alloc(size[, fill[, encoding]])
 **/
Buffer.alloc = function (size, fill, encoding) {
  return alloc(size, fill, encoding)
}

function allocUnsafe (size) {
  assertSize(size)
  return createBuffer(size < 0 ? 0 : checked(size) | 0)
}

/**
 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
 * */
Buffer.allocUnsafe = function (size) {
  return allocUnsafe(size)
}
/**
 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
 */
Buffer.allocUnsafeSlow = function (size) {
  return allocUnsafe(size)
}

function fromString (string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8'
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('Unknown encoding: ' + encoding)
  }

  const length = byteLength(string, encoding) | 0
  let buf = createBuffer(length)

  const actual = buf.write(string, encoding)

  if (actual !== length) {
    // Writing a hex string, for example, that contains invalid characters will
    // cause everything after the first invalid character to be ignored. (e.g.
    // 'abxxcd' will be treated as 'ab')
    buf = buf.slice(0, actual)
  }

  return buf
}

function fromArrayLike (array) {
  const length = array.length < 0 ? 0 : checked(array.length) | 0
  const buf = createBuffer(length)
  for (let i = 0; i < length; i += 1) {
    buf[i] = array[i] & 255
  }
  return buf
}

function fromArrayView (arrayView) {
  if (isInstance(arrayView, Uint8Array)) {
    const copy = new Uint8Array(arrayView)
    return fromArrayBuffer(copy.buffer, copy.byteOffset, copy.byteLength)
  }
  return fromArrayLike(arrayView)
}

function fromArrayBuffer (array, byteOffset, length) {
  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError('"offset" is outside of buffer bounds')
  }

  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError('"length" is outside of buffer bounds')
  }

  let buf
  if (byteOffset === undefined && length === undefined) {
    buf = new Uint8Array(array)
  } else if (length === undefined) {
    buf = new Uint8Array(array, byteOffset)
  } else {
    buf = new Uint8Array(array, byteOffset, length)
  }

  // Return an augmented `Uint8Array` instance
  Object.setPrototypeOf(buf, Buffer.prototype)

  return buf
}

function fromObject (obj) {
  if (Buffer.isBuffer(obj)) {
    const len = checked(obj.length) | 0
    const buf = createBuffer(len)

    if (buf.length === 0) {
      return buf
    }

    obj.copy(buf, 0, 0, len)
    return buf
  }

  if (obj.length !== undefined) {
    if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
      return createBuffer(0)
    }
    return fromArrayLike(obj)
  }

  if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
    return fromArrayLike(obj.data)
  }
}

function checked (length) {
  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= K_MAX_LENGTH) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (length) {
  if (+length != length) { // eslint-disable-line eqeqeq
    length = 0
  }
  return Buffer.alloc(+length)
}

Buffer.isBuffer = function isBuffer (b) {
  return b != null && b._isBuffer === true &&
    b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
}

Buffer.compare = function compare (a, b) {
  if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
  if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError(
      'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
    )
  }

  if (a === b) return 0

  let x = a.length
  let y = b.length

  for (let i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i]
      y = b[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'latin1':
    case 'binary':
    case 'base64':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!Array.isArray(list)) {
    throw new TypeError('"list" argument must be an Array of Buffers')
  }

  if (list.length === 0) {
    return Buffer.alloc(0)
  }

  let i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; ++i) {
      length += list[i].length
    }
  }

  const buffer = Buffer.allocUnsafe(length)
  let pos = 0
  for (i = 0; i < list.length; ++i) {
    let buf = list[i]
    if (isInstance(buf, Uint8Array)) {
      if (pos + buf.length > buffer.length) {
        if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf)
        buf.copy(buffer, pos)
      } else {
        Uint8Array.prototype.set.call(
          buffer,
          buf,
          pos
        )
      }
    } else if (!Buffer.isBuffer(buf)) {
      throw new TypeError('"list" argument must be an Array of Buffers')
    } else {
      buf.copy(buffer, pos)
    }
    pos += buf.length
  }
  return buffer
}

function byteLength (string, encoding) {
  if (Buffer.isBuffer(string)) {
    return string.length
  }
  if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
    return string.byteLength
  }
  if (typeof string !== 'string') {
    throw new TypeError(
      'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
      'Received type ' + typeof string
    )
  }

  const len = string.length
  const mustMatch = (arguments.length > 2 && arguments[2] === true)
  if (!mustMatch && len === 0) return 0

  // Use a for loop to avoid recursion
  let loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'latin1':
      case 'binary':
        return len
      case 'utf8':
      case 'utf-8':
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) {
          return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
        }
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

function slowToString (encoding, start, end) {
  let loweredCase = false

  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
  // property of a typed array.

  // This behaves neither like String nor Uint8Array in that we set start/end
  // to their upper/lower bounds if the value passed is out of range.
  // undefined is handled specially as per ECMA-262 6th Edition,
  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
  if (start === undefined || start < 0) {
    start = 0
  }
  // Return early if start > this.length. Done here to prevent potential uint32
  // coercion fail below.
  if (start > this.length) {
    return ''
  }

  if (end === undefined || end > this.length) {
    end = this.length
  }

  if (end <= 0) {
    return ''
  }

  // Force coercion to uint32. This will also coerce falsey/NaN values to 0.
  end >>>= 0
  start >>>= 0

  if (end <= start) {
    return ''
  }

  if (!encoding) encoding = 'utf8'

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'latin1':
      case 'binary':
        return latin1Slice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
// reliably in a browserify context because there could be multiple different
// copies of the 'buffer' package in use. This method works even for Buffer
// instances that were created from another copy of the `buffer` package.
// See: https://github.com/feross/buffer/issues/154
Buffer.prototype._isBuffer = true

function swap (b, n, m) {
  const i = b[n]
  b[n] = b[m]
  b[m] = i
}

Buffer.prototype.swap16 = function swap16 () {
  const len = this.length
  if (len % 2 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 16-bits')
  }
  for (let i = 0; i < len; i += 2) {
    swap(this, i, i + 1)
  }
  return this
}

Buffer.prototype.swap32 = function swap32 () {
  const len = this.length
  if (len % 4 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 32-bits')
  }
  for (let i = 0; i < len; i += 4) {
    swap(this, i, i + 3)
    swap(this, i + 1, i + 2)
  }
  return this
}

Buffer.prototype.swap64 = function swap64 () {
  const len = this.length
  if (len % 8 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 64-bits')
  }
  for (let i = 0; i < len; i += 8) {
    swap(this, i, i + 7)
    swap(this, i + 1, i + 6)
    swap(this, i + 2, i + 5)
    swap(this, i + 3, i + 4)
  }
  return this
}

Buffer.prototype.toString = function toString () {
  const length = this.length
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.toLocaleString = Buffer.prototype.toString

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  let str = ''
  const max = exports.INSPECT_MAX_BYTES
  str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
  if (this.length > max) str += ' ... '
  return '<Buffer ' + str + '>'
}
if (customInspectSymbol) {
  Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect
}

Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
  if (isInstance(target, Uint8Array)) {
    target = Buffer.from(target, target.offset, target.byteLength)
  }
  if (!Buffer.isBuffer(target)) {
    throw new TypeError(
      'The "target" argument must be one of type Buffer or Uint8Array. ' +
      'Received type ' + (typeof target)
    )
  }

  if (start === undefined) {
    start = 0
  }
  if (end === undefined) {
    end = target ? target.length : 0
  }
  if (thisStart === undefined) {
    thisStart = 0
  }
  if (thisEnd === undefined) {
    thisEnd = this.length
  }

  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
    throw new RangeError('out of range index')
  }

  if (thisStart >= thisEnd && start >= end) {
    return 0
  }
  if (thisStart >= thisEnd) {
    return -1
  }
  if (start >= end) {
    return 1
  }

  start >>>= 0
  end >>>= 0
  thisStart >>>= 0
  thisEnd >>>= 0

  if (this === target) return 0

  let x = thisEnd - thisStart
  let y = end - start
  const len = Math.min(x, y)

  const thisCopy = this.slice(thisStart, thisEnd)
  const targetCopy = target.slice(start, end)

  for (let i = 0; i < len; ++i) {
    if (thisCopy[i] !== targetCopy[i]) {
      x = thisCopy[i]
      y = targetCopy[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
  // Empty buffer means no match
  if (buffer.length === 0) return -1

  // Normalize byteOffset
  if (typeof byteOffset === 'string') {
    encoding = byteOffset
    byteOffset = 0
  } else if (byteOffset > 0x7fffffff) {
    byteOffset = 0x7fffffff
  } else if (byteOffset < -0x80000000) {
    byteOffset = -0x80000000
  }
  byteOffset = +byteOffset // Coerce to Number.
  if (numberIsNaN(byteOffset)) {
    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
    byteOffset = dir ? 0 : (buffer.length - 1)
  }

  // Normalize byteOffset: negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
  if (byteOffset >= buffer.length) {
    if (dir) return -1
    else byteOffset = buffer.length - 1
  } else if (byteOffset < 0) {
    if (dir) byteOffset = 0
    else return -1
  }

  // Normalize val
  if (typeof val === 'string') {
    val = Buffer.from(val, encoding)
  }

  // Finally, search either indexOf (if dir is true) or lastIndexOf
  if (Buffer.isBuffer(val)) {
    // Special case: looking for empty string/buffer always fails
    if (val.length === 0) {
      return -1
    }
    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
  } else if (typeof val === 'number') {
    val = val & 0xFF // Search for a byte value [0-255]
    if (typeof Uint8Array.prototype.indexOf === 'function') {
      if (dir) {
        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
      } else {
        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
      }
    }
    return arrayIndexOf(buffer, [val], byteOffset, encoding, dir)
  }

  throw new TypeError('val must be string, number or Buffer')
}

function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
  let indexSize = 1
  let arrLength = arr.length
  let valLength = val.length

  if (encoding !== undefined) {
    encoding = String(encoding).toLowerCase()
    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
        encoding === 'utf16le' || encoding === 'utf-16le') {
      if (arr.length < 2 || val.length < 2) {
        return -1
      }
      indexSize = 2
      arrLength /= 2
      valLength /= 2
      byteOffset /= 2
    }
  }

  function read (buf, i) {
    if (indexSize === 1) {
      return buf[i]
    } else {
      return buf.readUInt16BE(i * indexSize)
    }
  }

  let i
  if (dir) {
    let foundIndex = -1
    for (i = byteOffset; i < arrLength; i++) {
      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
      } else {
        if (foundIndex !== -1) i -= i - foundIndex
        foundIndex = -1
      }
    }
  } else {
    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
    for (i = byteOffset; i >= 0; i--) {
      let found = true
      for (let j = 0; j < valLength; j++) {
        if (read(arr, i + j) !== read(val, j)) {
          found = false
          break
        }
      }
      if (found) return i
    }
  }

  return -1
}

Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
  return this.indexOf(val, byteOffset, encoding) !== -1
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}

Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  const remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  const strLen = string.length

  if (length > strLen / 2) {
    length = strLen / 2
  }
  let i
  for (i = 0; i < length; ++i) {
    const parsed = parseInt(string.substr(i * 2, 2), 16)
    if (numberIsNaN(parsed)) return i
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset >>> 0
    if (isFinite(length)) {
      length = length >>> 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  } else {
    throw new Error(
      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
    )
  }

  const remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('Attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  let loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
      case 'latin1':
      case 'binary':
        return asciiWrite(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  const res = []

  let i = start
  while (i < end) {
    const firstByte = buf[i]
    let codePoint = null
    let bytesPerSequence = (firstByte > 0xEF)
      ? 4
      : (firstByte > 0xDF)
          ? 3
          : (firstByte > 0xBF)
              ? 2
              : 1

    if (i + bytesPerSequence <= end) {
      let secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
const MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  const len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  let res = ''
  let i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  let ret = ''
  end = Math.min(buf.length, end)

  for (let i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function latin1Slice (buf, start, end) {
  let ret = ''
  end = Math.min(buf.length, end)

  for (let i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  const len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  let out = ''
  for (let i = start; i < end; ++i) {
    out += hexSliceLookupTable[buf[i]]
  }
  return out
}

function utf16leSlice (buf, start, end) {
  const bytes = buf.slice(start, end)
  let res = ''
  // If bytes.length is odd, the last 8 bits must be ignored (same as node.js)
  for (let i = 0; i < bytes.length - 1; i += 2) {
    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  const len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  const newBuf = this.subarray(start, end)
  // Return an augmented `Uint8Array` instance
  Object.setPrototypeOf(newBuf, Buffer.prototype)

  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUintLE =
Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  let val = this[offset]
  let mul = 1
  let i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUintBE =
Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  let val = this[offset + --byteLength]
  let mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUint8 =
Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUint16LE =
Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUint16BE =
Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUint32LE =
Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUint32BE =
Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readBigUInt64LE = defineBigIntMethod(function readBigUInt64LE (offset) {
  offset = offset >>> 0
  validateNumber(offset, 'offset')
  const first = this[offset]
  const last = this[offset + 7]
  if (first === undefined || last === undefined) {
    boundsError(offset, this.length - 8)
  }

  const lo = first +
    this[++offset] * 2 ** 8 +
    this[++offset] * 2 ** 16 +
    this[++offset] * 2 ** 24

  const hi = this[++offset] +
    this[++offset] * 2 ** 8 +
    this[++offset] * 2 ** 16 +
    last * 2 ** 24

  return BigInt(lo) + (BigInt(hi) << BigInt(32))
})

Buffer.prototype.readBigUInt64BE = defineBigIntMethod(function readBigUInt64BE (offset) {
  offset = offset >>> 0
  validateNumber(offset, 'offset')
  const first = this[offset]
  const last = this[offset + 7]
  if (first === undefined || last === undefined) {
    boundsError(offset, this.length - 8)
  }

  const hi = first * 2 ** 24 +
    this[++offset] * 2 ** 16 +
    this[++offset] * 2 ** 8 +
    this[++offset]

  const lo = this[++offset] * 2 ** 24 +
    this[++offset] * 2 ** 16 +
    this[++offset] * 2 ** 8 +
    last

  return (BigInt(hi) << BigInt(32)) + BigInt(lo)
})

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  let val = this[offset]
  let mul = 1
  let i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  let i = byteLength
  let mul = 1
  let val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  const val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  const val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readBigInt64LE = defineBigIntMethod(function readBigInt64LE (offset) {
  offset = offset >>> 0
  validateNumber(offset, 'offset')
  const first = this[offset]
  const last = this[offset + 7]
  if (first === undefined || last === undefined) {
    boundsError(offset, this.length - 8)
  }

  const val = this[offset + 4] +
    this[offset + 5] * 2 ** 8 +
    this[offset + 6] * 2 ** 16 +
    (last << 24) // Overflow

  return (BigInt(val) << BigInt(32)) +
    BigInt(first +
    this[++offset] * 2 ** 8 +
    this[++offset] * 2 ** 16 +
    this[++offset] * 2 ** 24)
})

Buffer.prototype.readBigInt64BE = defineBigIntMethod(function readBigInt64BE (offset) {
  offset = offset >>> 0
  validateNumber(offset, 'offset')
  const first = this[offset]
  const last = this[offset + 7]
  if (first === undefined || last === undefined) {
    boundsError(offset, this.length - 8)
  }

  const val = (first << 24) + // Overflow
    this[++offset] * 2 ** 16 +
    this[++offset] * 2 ** 8 +
    this[++offset]

  return (BigInt(val) << BigInt(32)) +
    BigInt(this[++offset] * 2 ** 24 +
    this[++offset] * 2 ** 16 +
    this[++offset] * 2 ** 8 +
    last)
})

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
}

Buffer.prototype.writeUintLE =
Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    const maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  let mul = 1
  let i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUintBE =
Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    const maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  let i = byteLength - 1
  let mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUint8 =
Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeUint16LE =
Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeUint16BE =
Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeUint32LE =
Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset + 3] = (value >>> 24)
  this[offset + 2] = (value >>> 16)
  this[offset + 1] = (value >>> 8)
  this[offset] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeUint32BE =
Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

function wrtBigUInt64LE (buf, value, offset, min, max) {
  checkIntBI(value, min, max, buf, offset, 7)

  let lo = Number(value & BigInt(0xffffffff))
  buf[offset++] = lo
  lo = lo >> 8
  buf[offset++] = lo
  lo = lo >> 8
  buf[offset++] = lo
  lo = lo >> 8
  buf[offset++] = lo
  let hi = Number(value >> BigInt(32) & BigInt(0xffffffff))
  buf[offset++] = hi
  hi = hi >> 8
  buf[offset++] = hi
  hi = hi >> 8
  buf[offset++] = hi
  hi = hi >> 8
  buf[offset++] = hi
  return offset
}

function wrtBigUInt64BE (buf, value, offset, min, max) {
  checkIntBI(value, min, max, buf, offset, 7)

  let lo = Number(value & BigInt(0xffffffff))
  buf[offset + 7] = lo
  lo = lo >> 8
  buf[offset + 6] = lo
  lo = lo >> 8
  buf[offset + 5] = lo
  lo = lo >> 8
  buf[offset + 4] = lo
  let hi = Number(value >> BigInt(32) & BigInt(0xffffffff))
  buf[offset + 3] = hi
  hi = hi >> 8
  buf[offset + 2] = hi
  hi = hi >> 8
  buf[offset + 1] = hi
  hi = hi >> 8
  buf[offset] = hi
  return offset + 8
}

Buffer.prototype.writeBigUInt64LE = defineBigIntMethod(function writeBigUInt64LE (value, offset = 0) {
  return wrtBigUInt64LE(this, value, offset, BigInt(0), BigInt('0xffffffffffffffff'))
})

Buffer.prototype.writeBigUInt64BE = defineBigIntMethod(function writeBigUInt64BE (value, offset = 0) {
  return wrtBigUInt64BE(this, value, offset, BigInt(0), BigInt('0xffffffffffffffff'))
})

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    const limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  let i = 0
  let mul = 1
  let sub = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    const limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  let i = byteLength - 1
  let mul = 1
  let sub = 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  this[offset + 2] = (value >>> 16)
  this[offset + 3] = (value >>> 24)
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeBigInt64LE = defineBigIntMethod(function writeBigInt64LE (value, offset = 0) {
  return wrtBigUInt64LE(this, value, offset, -BigInt('0x8000000000000000'), BigInt('0x7fffffffffffffff'))
})

Buffer.prototype.writeBigInt64BE = defineBigIntMethod(function writeBigInt64BE (value, offset = 0) {
  return wrtBigUInt64BE(this, value, offset, -BigInt('0x8000000000000000'), BigInt('0x7fffffffffffffff'))
})

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
  if (offset < 0) throw new RangeError('Index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  const len = end - start

  if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
    // Use built-in when available, missing from IE11
    this.copyWithin(targetStart, start, end)
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, end),
      targetStart
    )
  }

  return len
}

// Usage:
//    buffer.fill(number[, offset[, end]])
//    buffer.fill(buffer[, offset[, end]])
//    buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
  // Handle string cases:
  if (typeof val === 'string') {
    if (typeof start === 'string') {
      encoding = start
      start = 0
      end = this.length
    } else if (typeof end === 'string') {
      encoding = end
      end = this.length
    }
    if (encoding !== undefined && typeof encoding !== 'string') {
      throw new TypeError('encoding must be a string')
    }
    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
      throw new TypeError('Unknown encoding: ' + encoding)
    }
    if (val.length === 1) {
      const code = val.charCodeAt(0)
      if ((encoding === 'utf8' && code < 128) ||
          encoding === 'latin1') {
        // Fast path: If `val` fits into a single byte, use that numeric value.
        val = code
      }
    }
  } else if (typeof val === 'number') {
    val = val & 255
  } else if (typeof val === 'boolean') {
    val = Number(val)
  }

  // Invalid ranges are not set to a default, so can range check early.
  if (start < 0 || this.length < start || this.length < end) {
    throw new RangeError('Out of range index')
  }

  if (end <= start) {
    return this
  }

  start = start >>> 0
  end = end === undefined ? this.length : end >>> 0

  if (!val) val = 0

  let i
  if (typeof val === 'number') {
    for (i = start; i < end; ++i) {
      this[i] = val
    }
  } else {
    const bytes = Buffer.isBuffer(val)
      ? val
      : Buffer.from(val, encoding)
    const len = bytes.length
    if (len === 0) {
      throw new TypeError('The value "' + val +
        '" is invalid for argument "value"')
    }
    for (i = 0; i < end - start; ++i) {
      this[i + start] = bytes[i % len]
    }
  }

  return this
}

// CUSTOM ERRORS
// =============

// Simplified versions from Node, changed for Buffer-only usage
const errors = {}
function E (sym, getMessage, Base) {
  errors[sym] = class NodeError extends Base {
    constructor () {
      super()

      Object.defineProperty(this, 'message', {
        value: getMessage.apply(this, arguments),
        writable: true,
        configurable: true
      })

      // Add the error code to the name to include it in the stack trace.
      this.name = `${this.name} [${sym}]`
      // Access the stack to generate the error message including the error code
      // from the name.
      this.stack // eslint-disable-line no-unused-expressions
      // Reset the name to the actual name.
      delete this.name
    }

    get code () {
      return sym
    }

    set code (value) {
      Object.defineProperty(this, 'code', {
        configurable: true,
        enumerable: true,
        value,
        writable: true
      })
    }

    toString () {
      return `${this.name} [${sym}]: ${this.message}`
    }
  }
}

E('ERR_BUFFER_OUT_OF_BOUNDS',
  function (name) {
    if (name) {
      return `${name} is outside of buffer bounds`
    }

    return 'Attempt to access memory outside buffer bounds'
  }, RangeError)
E('ERR_INVALID_ARG_TYPE',
  function (name, actual) {
    return `The "${name}" argument must be of type number. Received type ${typeof actual}`
  }, TypeError)
E('ERR_OUT_OF_RANGE',
  function (str, range, input) {
    let msg = `The value of "${str}" is out of range.`
    let received = input
    if (Number.isInteger(input) && Math.abs(input) > 2 ** 32) {
      received = addNumericalSeparator(String(input))
    } else if (typeof input === 'bigint') {
      received = String(input)
      if (input > BigInt(2) ** BigInt(32) || input < -(BigInt(2) ** BigInt(32))) {
        received = addNumericalSeparator(received)
      }
      received += 'n'
    }
    msg += ` It must be ${range}. Received ${received}`
    return msg
  }, RangeError)

function addNumericalSeparator (val) {
  let res = ''
  let i = val.length
  const start = val[0] === '-' ? 1 : 0
  for (; i >= start + 4; i -= 3) {
    res = `_${val.slice(i - 3, i)}${res}`
  }
  return `${val.slice(0, i)}${res}`
}

// CHECK FUNCTIONS
// ===============

function checkBounds (buf, offset, byteLength) {
  validateNumber(offset, 'offset')
  if (buf[offset] === undefined || buf[offset + byteLength] === undefined) {
    boundsError(offset, buf.length - (byteLength + 1))
  }
}

function checkIntBI (value, min, max, buf, offset, byteLength) {
  if (value > max || value < min) {
    const n = typeof min === 'bigint' ? 'n' : ''
    let range
    if (byteLength > 3) {
      if (min === 0 || min === BigInt(0)) {
        range = `>= 0${n} and < 2${n} ** ${(byteLength + 1) * 8}${n}`
      } else {
        range = `>= -(2${n} ** ${(byteLength + 1) * 8 - 1}${n}) and < 2 ** ` +
                `${(byteLength + 1) * 8 - 1}${n}`
      }
    } else {
      range = `>= ${min}${n} and <= ${max}${n}`
    }
    throw new errors.ERR_OUT_OF_RANGE('value', range, value)
  }
  checkBounds(buf, offset, byteLength)
}

function validateNumber (value, name) {
  if (typeof value !== 'number') {
    throw new errors.ERR_INVALID_ARG_TYPE(name, 'number', value)
  }
}

function boundsError (value, length, type) {
  if (Math.floor(value) !== value) {
    validateNumber(value, type)
    throw new errors.ERR_OUT_OF_RANGE(type || 'offset', 'an integer', value)
  }

  if (length < 0) {
    throw new errors.ERR_BUFFER_OUT_OF_BOUNDS()
  }

  throw new errors.ERR_OUT_OF_RANGE(type || 'offset',
                                    `>= ${type ? 1 : 0} and <= ${length}`,
                                    value)
}

// HELPER FUNCTIONS
// ================

const INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node takes equal signs as end of the Base64 encoding
  str = str.split('=')[0]
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = str.trim().replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  let codePoint
  const length = string.length
  let leadSurrogate = null
  const bytes = []

  for (let i = 0; i < length; ++i) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  const byteArray = []
  for (let i = 0; i < str.length; ++i) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  let c, hi, lo
  const byteArray = []
  for (let i = 0; i < str.length; ++i) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  let i
  for (i = 0; i < length; ++i) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
// the `instanceof` check but they should be treated as of that type.
// See: https://github.com/feross/buffer/issues/166
function isInstance (obj, type) {
  return obj instanceof type ||
    (obj != null && obj.constructor != null && obj.constructor.name != null &&
      obj.constructor.name === type.name)
}
function numberIsNaN (obj) {
  // For IE11 support
  return obj !== obj // eslint-disable-line no-self-compare
}

// Create lookup table for `toString('hex')`
// See: https://github.com/feross/buffer/issues/219
const hexSliceLookupTable = (function () {
  const alphabet = '0123456789abcdef'
  const table = new Array(256)
  for (let i = 0; i < 16; ++i) {
    const i16 = i * 16
    for (let j = 0; j < 16; ++j) {
      table[i16 + j] = alphabet[i] + alphabet[j]
    }
  }
  return table
})()

// Return not function with Error if BigInt not supported
function defineBigIntMethod (fn) {
  return typeof BigInt === 'undefined' ? BufferBigIntNotDefined : fn
}

function BufferBigIntNotDefined () {
  throw new Error('BigInt not supported')
}


/***/ }),

/***/ "./node_modules/core-js/features/index.js":
/*!************************************************!*\
  !*** ./node_modules/core-js/features/index.js ***!
  \************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

__webpack_require__(/*! ../modules/es.symbol */ "./node_modules/core-js/modules/es.symbol.js");
__webpack_require__(/*! ../modules/es.symbol.description */ "./node_modules/core-js/modules/es.symbol.description.js");
__webpack_require__(/*! ../modules/es.symbol.async-iterator */ "./node_modules/core-js/modules/es.symbol.async-iterator.js");
__webpack_require__(/*! ../modules/es.symbol.has-instance */ "./node_modules/core-js/modules/es.symbol.has-instance.js");
__webpack_require__(/*! ../modules/es.symbol.is-concat-spreadable */ "./node_modules/core-js/modules/es.symbol.is-concat-spreadable.js");
__webpack_require__(/*! ../modules/es.symbol.iterator */ "./node_modules/core-js/modules/es.symbol.iterator.js");
__webpack_require__(/*! ../modules/es.symbol.match */ "./node_modules/core-js/modules/es.symbol.match.js");
__webpack_require__(/*! ../modules/es.symbol.match-all */ "./node_modules/core-js/modules/es.symbol.match-all.js");
__webpack_require__(/*! ../modules/es.symbol.replace */ "./node_modules/core-js/modules/es.symbol.replace.js");
__webpack_require__(/*! ../modules/es.symbol.search */ "./node_modules/core-js/modules/es.symbol.search.js");
__webpack_require__(/*! ../modules/es.symbol.species */ "./node_modules/core-js/modules/es.symbol.species.js");
__webpack_require__(/*! ../modules/es.symbol.split */ "./node_modules/core-js/modules/es.symbol.split.js");
__webpack_require__(/*! ../modules/es.symbol.to-primitive */ "./node_modules/core-js/modules/es.symbol.to-primitive.js");
__webpack_require__(/*! ../modules/es.symbol.to-string-tag */ "./node_modules/core-js/modules/es.symbol.to-string-tag.js");
__webpack_require__(/*! ../modules/es.symbol.unscopables */ "./node_modules/core-js/modules/es.symbol.unscopables.js");
__webpack_require__(/*! ../modules/es.error.cause */ "./node_modules/core-js/modules/es.error.cause.js");
__webpack_require__(/*! ../modules/es.error.to-string */ "./node_modules/core-js/modules/es.error.to-string.js");
__webpack_require__(/*! ../modules/es.aggregate-error */ "./node_modules/core-js/modules/es.aggregate-error.js");
__webpack_require__(/*! ../modules/es.aggregate-error.cause */ "./node_modules/core-js/modules/es.aggregate-error.cause.js");
__webpack_require__(/*! ../modules/es.array.at */ "./node_modules/core-js/modules/es.array.at.js");
__webpack_require__(/*! ../modules/es.array.concat */ "./node_modules/core-js/modules/es.array.concat.js");
__webpack_require__(/*! ../modules/es.array.copy-within */ "./node_modules/core-js/modules/es.array.copy-within.js");
__webpack_require__(/*! ../modules/es.array.every */ "./node_modules/core-js/modules/es.array.every.js");
__webpack_require__(/*! ../modules/es.array.fill */ "./node_modules/core-js/modules/es.array.fill.js");
__webpack_require__(/*! ../modules/es.array.filter */ "./node_modules/core-js/modules/es.array.filter.js");
__webpack_require__(/*! ../modules/es.array.find */ "./node_modules/core-js/modules/es.array.find.js");
__webpack_require__(/*! ../modules/es.array.find-index */ "./node_modules/core-js/modules/es.array.find-index.js");
__webpack_require__(/*! ../modules/es.array.flat */ "./node_modules/core-js/modules/es.array.flat.js");
__webpack_require__(/*! ../modules/es.array.flat-map */ "./node_modules/core-js/modules/es.array.flat-map.js");
__webpack_require__(/*! ../modules/es.array.for-each */ "./node_modules/core-js/modules/es.array.for-each.js");
__webpack_require__(/*! ../modules/es.array.from */ "./node_modules/core-js/modules/es.array.from.js");
__webpack_require__(/*! ../modules/es.array.includes */ "./node_modules/core-js/modules/es.array.includes.js");
__webpack_require__(/*! ../modules/es.array.index-of */ "./node_modules/core-js/modules/es.array.index-of.js");
__webpack_require__(/*! ../modules/es.array.is-array */ "./node_modules/core-js/modules/es.array.is-array.js");
__webpack_require__(/*! ../modules/es.array.iterator */ "./node_modules/core-js/modules/es.array.iterator.js");
__webpack_require__(/*! ../modules/es.array.join */ "./node_modules/core-js/modules/es.array.join.js");
__webpack_require__(/*! ../modules/es.array.last-index-of */ "./node_modules/core-js/modules/es.array.last-index-of.js");
__webpack_require__(/*! ../modules/es.array.map */ "./node_modules/core-js/modules/es.array.map.js");
__webpack_require__(/*! ../modules/es.array.of */ "./node_modules/core-js/modules/es.array.of.js");
__webpack_require__(/*! ../modules/es.array.reduce */ "./node_modules/core-js/modules/es.array.reduce.js");
__webpack_require__(/*! ../modules/es.array.reduce-right */ "./node_modules/core-js/modules/es.array.reduce-right.js");
__webpack_require__(/*! ../modules/es.array.reverse */ "./node_modules/core-js/modules/es.array.reverse.js");
__webpack_require__(/*! ../modules/es.array.slice */ "./node_modules/core-js/modules/es.array.slice.js");
__webpack_require__(/*! ../modules/es.array.some */ "./node_modules/core-js/modules/es.array.some.js");
__webpack_require__(/*! ../modules/es.array.sort */ "./node_modules/core-js/modules/es.array.sort.js");
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__webpack_require__(/*! ../modules/es.array-buffer.is-view */ "./node_modules/core-js/modules/es.array-buffer.is-view.js");
__webpack_require__(/*! ../modules/es.array-buffer.slice */ "./node_modules/core-js/modules/es.array-buffer.slice.js");
__webpack_require__(/*! ../modules/es.data-view */ "./node_modules/core-js/modules/es.data-view.js");
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__webpack_require__(/*! ../modules/es.date.now */ "./node_modules/core-js/modules/es.date.now.js");
__webpack_require__(/*! ../modules/es.date.set-year */ "./node_modules/core-js/modules/es.date.set-year.js");
__webpack_require__(/*! ../modules/es.date.to-gmt-string */ "./node_modules/core-js/modules/es.date.to-gmt-string.js");
__webpack_require__(/*! ../modules/es.date.to-iso-string */ "./node_modules/core-js/modules/es.date.to-iso-string.js");
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__webpack_require__(/*! ../modules/es.date.to-string */ "./node_modules/core-js/modules/es.date.to-string.js");
__webpack_require__(/*! ../modules/es.escape */ "./node_modules/core-js/modules/es.escape.js");
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__webpack_require__(/*! ../modules/es.function.has-instance */ "./node_modules/core-js/modules/es.function.has-instance.js");
__webpack_require__(/*! ../modules/es.function.name */ "./node_modules/core-js/modules/es.function.name.js");
__webpack_require__(/*! ../modules/es.global-this */ "./node_modules/core-js/modules/es.global-this.js");
__webpack_require__(/*! ../modules/es.json.stringify */ "./node_modules/core-js/modules/es.json.stringify.js");
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var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
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var tryToString = __webpack_require__(/*! ../internals/try-to-string */ "./node_modules/core-js/internals/try-to-string.js");

var TypeError = global.TypeError;

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};


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/***/ "./node_modules/core-js/internals/a-constructor.js":
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var TypeError = global.TypeError;

// `Assert: IsConstructor(argument) is true`
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/***/ "./node_modules/core-js/internals/a-possible-prototype.js":
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var String = global.String;
var TypeError = global.TypeError;

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/***/ "./node_modules/core-js/internals/add-to-unscopables.js":
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var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");

var UNSCOPABLES = wellKnownSymbol('unscopables');
var ArrayPrototype = Array.prototype;

// Array.prototype[@@unscopables]
// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
if (ArrayPrototype[UNSCOPABLES] == undefined) {
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};


/***/ }),

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var charAt = (__webpack_require__(/*! ../internals/string-multibyte */ "./node_modules/core-js/internals/string-multibyte.js").charAt);

// `AdvanceStringIndex` abstract operation
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module.exports = function (S, index, unicode) {
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};


/***/ }),

/***/ "./node_modules/core-js/internals/an-instance.js":
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var TypeError = global.TypeError;

module.exports = function (it, Prototype) {
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};


/***/ }),

/***/ "./node_modules/core-js/internals/an-object.js":
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var String = global.String;
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// `Assert: Type(argument) is Object`
module.exports = function (argument) {
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};


/***/ }),

/***/ "./node_modules/core-js/internals/array-buffer-native.js":
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/***/ ((module) => {

// eslint-disable-next-line es/no-typed-arrays -- safe
module.exports = typeof ArrayBuffer != 'undefined' && typeof DataView != 'undefined';


/***/ }),

/***/ "./node_modules/core-js/internals/array-buffer-non-extensible.js":
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// FF26- bug: ArrayBuffers are non-extensible, but Object.isExtensible does not report it
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

module.exports = fails(function () {
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    var buffer = new ArrayBuffer(8);
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    if (Object.isExtensible(buffer)) Object.defineProperty(buffer, 'a', { value: 8 });
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});


/***/ }),

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var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
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var classof = __webpack_require__(/*! ../internals/classof */ "./node_modules/core-js/internals/classof.js");
var tryToString = __webpack_require__(/*! ../internals/try-to-string */ "./node_modules/core-js/internals/try-to-string.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var setPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var uid = __webpack_require__(/*! ../internals/uid */ "./node_modules/core-js/internals/uid.js");

var Int8Array = global.Int8Array;
var Int8ArrayPrototype = Int8Array && Int8Array.prototype;
var Uint8ClampedArray = global.Uint8ClampedArray;
var Uint8ClampedArrayPrototype = Uint8ClampedArray && Uint8ClampedArray.prototype;
var TypedArray = Int8Array && getPrototypeOf(Int8Array);
var TypedArrayPrototype = Int8ArrayPrototype && getPrototypeOf(Int8ArrayPrototype);
var ObjectPrototype = Object.prototype;
var TypeError = global.TypeError;

var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var TYPED_ARRAY_TAG = uid('TYPED_ARRAY_TAG');
var TYPED_ARRAY_CONSTRUCTOR = uid('TYPED_ARRAY_CONSTRUCTOR');
// Fixing native typed arrays in Opera Presto crashes the browser, see #595
var NATIVE_ARRAY_BUFFER_VIEWS = NATIVE_ARRAY_BUFFER && !!setPrototypeOf && classof(global.opera) !== 'Opera';
var TYPED_ARRAY_TAG_REQUIRED = false;
var NAME, Constructor, Prototype;

var TypedArrayConstructorsList = {
  Int8Array: 1,
  Uint8Array: 1,
  Uint8ClampedArray: 1,
  Int16Array: 2,
  Uint16Array: 2,
  Int32Array: 4,
  Uint32Array: 4,
  Float32Array: 4,
  Float64Array: 8
};

var BigIntArrayConstructorsList = {
  BigInt64Array: 8,
  BigUint64Array: 8
};

var isView = function isView(it) {
  if (!isObject(it)) return false;
  var klass = classof(it);
  return klass === 'DataView'
    || hasOwn(TypedArrayConstructorsList, klass)
    || hasOwn(BigIntArrayConstructorsList, klass);
};

var isTypedArray = function (it) {
  if (!isObject(it)) return false;
  var klass = classof(it);
  return hasOwn(TypedArrayConstructorsList, klass)
    || hasOwn(BigIntArrayConstructorsList, klass);
};

var aTypedArray = function (it) {
  if (isTypedArray(it)) return it;
  throw TypeError('Target is not a typed array');
};

var aTypedArrayConstructor = function (C) {
  if (isCallable(C) && (!setPrototypeOf || isPrototypeOf(TypedArray, C))) return C;
  throw TypeError(tryToString(C) + ' is not a typed array constructor');
};

var exportTypedArrayMethod = function (KEY, property, forced, options) {
  if (!DESCRIPTORS) return;
  if (forced) for (var ARRAY in TypedArrayConstructorsList) {
    var TypedArrayConstructor = global[ARRAY];
    if (TypedArrayConstructor && hasOwn(TypedArrayConstructor.prototype, KEY)) try {
      delete TypedArrayConstructor.prototype[KEY];
    } catch (error) {
      // old WebKit bug - some methods are non-configurable
      try {
        TypedArrayConstructor.prototype[KEY] = property;
      } catch (error2) { /* empty */ }
    }
  }
  if (!TypedArrayPrototype[KEY] || forced) {
    redefine(TypedArrayPrototype, KEY, forced ? property
      : NATIVE_ARRAY_BUFFER_VIEWS && Int8ArrayPrototype[KEY] || property, options);
  }
};

var exportTypedArrayStaticMethod = function (KEY, property, forced) {
  var ARRAY, TypedArrayConstructor;
  if (!DESCRIPTORS) return;
  if (setPrototypeOf) {
    if (forced) for (ARRAY in TypedArrayConstructorsList) {
      TypedArrayConstructor = global[ARRAY];
      if (TypedArrayConstructor && hasOwn(TypedArrayConstructor, KEY)) try {
        delete TypedArrayConstructor[KEY];
      } catch (error) { /* empty */ }
    }
    if (!TypedArray[KEY] || forced) {
      // V8 ~ Chrome 49-50 `%TypedArray%` methods are non-writable non-configurable
      try {
        return redefine(TypedArray, KEY, forced ? property : NATIVE_ARRAY_BUFFER_VIEWS && TypedArray[KEY] || property);
      } catch (error) { /* empty */ }
    } else return;
  }
  for (ARRAY in TypedArrayConstructorsList) {
    TypedArrayConstructor = global[ARRAY];
    if (TypedArrayConstructor && (!TypedArrayConstructor[KEY] || forced)) {
      redefine(TypedArrayConstructor, KEY, property);
    }
  }
};

for (NAME in TypedArrayConstructorsList) {
  Constructor = global[NAME];
  Prototype = Constructor && Constructor.prototype;
  if (Prototype) createNonEnumerableProperty(Prototype, TYPED_ARRAY_CONSTRUCTOR, Constructor);
  else NATIVE_ARRAY_BUFFER_VIEWS = false;
}

for (NAME in BigIntArrayConstructorsList) {
  Constructor = global[NAME];
  Prototype = Constructor && Constructor.prototype;
  if (Prototype) createNonEnumerableProperty(Prototype, TYPED_ARRAY_CONSTRUCTOR, Constructor);
}

// WebKit bug - typed arrays constructors prototype is Object.prototype
if (!NATIVE_ARRAY_BUFFER_VIEWS || !isCallable(TypedArray) || TypedArray === Function.prototype) {
  // eslint-disable-next-line no-shadow -- safe
  TypedArray = function TypedArray() {
    throw TypeError('Incorrect invocation');
  };
  if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {
    if (global[NAME]) setPrototypeOf(global[NAME], TypedArray);
  }
}

if (!NATIVE_ARRAY_BUFFER_VIEWS || !TypedArrayPrototype || TypedArrayPrototype === ObjectPrototype) {
  TypedArrayPrototype = TypedArray.prototype;
  if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {
    if (global[NAME]) setPrototypeOf(global[NAME].prototype, TypedArrayPrototype);
  }
}

// WebKit bug - one more object in Uint8ClampedArray prototype chain
if (NATIVE_ARRAY_BUFFER_VIEWS && getPrototypeOf(Uint8ClampedArrayPrototype) !== TypedArrayPrototype) {
  setPrototypeOf(Uint8ClampedArrayPrototype, TypedArrayPrototype);
}

if (DESCRIPTORS && !hasOwn(TypedArrayPrototype, TO_STRING_TAG)) {
  TYPED_ARRAY_TAG_REQUIRED = true;
  defineProperty(TypedArrayPrototype, TO_STRING_TAG, { get: function () {
    return isObject(this) ? this[TYPED_ARRAY_TAG] : undefined;
  } });
  for (NAME in TypedArrayConstructorsList) if (global[NAME]) {
    createNonEnumerableProperty(global[NAME], TYPED_ARRAY_TAG, NAME);
  }
}

module.exports = {
  NATIVE_ARRAY_BUFFER_VIEWS: NATIVE_ARRAY_BUFFER_VIEWS,
  TYPED_ARRAY_CONSTRUCTOR: TYPED_ARRAY_CONSTRUCTOR,
  TYPED_ARRAY_TAG: TYPED_ARRAY_TAG_REQUIRED && TYPED_ARRAY_TAG,
  aTypedArray: aTypedArray,
  aTypedArrayConstructor: aTypedArrayConstructor,
  exportTypedArrayMethod: exportTypedArrayMethod,
  exportTypedArrayStaticMethod: exportTypedArrayStaticMethod,
  isView: isView,
  isTypedArray: isTypedArray,
  TypedArray: TypedArray,
  TypedArrayPrototype: TypedArrayPrototype
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-buffer.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/internals/array-buffer.js ***!
  \********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var NATIVE_ARRAY_BUFFER = __webpack_require__(/*! ../internals/array-buffer-native */ "./node_modules/core-js/internals/array-buffer-native.js");
var FunctionName = __webpack_require__(/*! ../internals/function-name */ "./node_modules/core-js/internals/function-name.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toIndex = __webpack_require__(/*! ../internals/to-index */ "./node_modules/core-js/internals/to-index.js");
var IEEE754 = __webpack_require__(/*! ../internals/ieee754 */ "./node_modules/core-js/internals/ieee754.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var setPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");
var getOwnPropertyNames = (__webpack_require__(/*! ../internals/object-get-own-property-names */ "./node_modules/core-js/internals/object-get-own-property-names.js").f);
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var arrayFill = __webpack_require__(/*! ../internals/array-fill */ "./node_modules/core-js/internals/array-fill.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice-simple */ "./node_modules/core-js/internals/array-slice-simple.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");

var PROPER_FUNCTION_NAME = FunctionName.PROPER;
var CONFIGURABLE_FUNCTION_NAME = FunctionName.CONFIGURABLE;
var getInternalState = InternalStateModule.get;
var setInternalState = InternalStateModule.set;
var ARRAY_BUFFER = 'ArrayBuffer';
var DATA_VIEW = 'DataView';
var PROTOTYPE = 'prototype';
var WRONG_LENGTH = 'Wrong length';
var WRONG_INDEX = 'Wrong index';
var NativeArrayBuffer = global[ARRAY_BUFFER];
var $ArrayBuffer = NativeArrayBuffer;
var ArrayBufferPrototype = $ArrayBuffer && $ArrayBuffer[PROTOTYPE];
var $DataView = global[DATA_VIEW];
var DataViewPrototype = $DataView && $DataView[PROTOTYPE];
var ObjectPrototype = Object.prototype;
var Array = global.Array;
var RangeError = global.RangeError;
var fill = uncurryThis(arrayFill);
var reverse = uncurryThis([].reverse);

var packIEEE754 = IEEE754.pack;
var unpackIEEE754 = IEEE754.unpack;

var packInt8 = function (number) {
  return [number & 0xFF];
};

var packInt16 = function (number) {
  return [number & 0xFF, number >> 8 & 0xFF];
};

var packInt32 = function (number) {
  return [number & 0xFF, number >> 8 & 0xFF, number >> 16 & 0xFF, number >> 24 & 0xFF];
};

var unpackInt32 = function (buffer) {
  return buffer[3] << 24 | buffer[2] << 16 | buffer[1] << 8 | buffer[0];
};

var packFloat32 = function (number) {
  return packIEEE754(number, 23, 4);
};

var packFloat64 = function (number) {
  return packIEEE754(number, 52, 8);
};

var addGetter = function (Constructor, key) {
  defineProperty(Constructor[PROTOTYPE], key, { get: function () { return getInternalState(this)[key]; } });
};

var get = function (view, count, index, isLittleEndian) {
  var intIndex = toIndex(index);
  var store = getInternalState(view);
  if (intIndex + count > store.byteLength) throw RangeError(WRONG_INDEX);
  var bytes = getInternalState(store.buffer).bytes;
  var start = intIndex + store.byteOffset;
  var pack = arraySlice(bytes, start, start + count);
  return isLittleEndian ? pack : reverse(pack);
};

var set = function (view, count, index, conversion, value, isLittleEndian) {
  var intIndex = toIndex(index);
  var store = getInternalState(view);
  if (intIndex + count > store.byteLength) throw RangeError(WRONG_INDEX);
  var bytes = getInternalState(store.buffer).bytes;
  var start = intIndex + store.byteOffset;
  var pack = conversion(+value);
  for (var i = 0; i < count; i++) bytes[start + i] = pack[isLittleEndian ? i : count - i - 1];
};

if (!NATIVE_ARRAY_BUFFER) {
  $ArrayBuffer = function ArrayBuffer(length) {
    anInstance(this, ArrayBufferPrototype);
    var byteLength = toIndex(length);
    setInternalState(this, {
      bytes: fill(Array(byteLength), 0),
      byteLength: byteLength
    });
    if (!DESCRIPTORS) this.byteLength = byteLength;
  };

  ArrayBufferPrototype = $ArrayBuffer[PROTOTYPE];

  $DataView = function DataView(buffer, byteOffset, byteLength) {
    anInstance(this, DataViewPrototype);
    anInstance(buffer, ArrayBufferPrototype);
    var bufferLength = getInternalState(buffer).byteLength;
    var offset = toIntegerOrInfinity(byteOffset);
    if (offset < 0 || offset > bufferLength) throw RangeError('Wrong offset');
    byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);
    if (offset + byteLength > bufferLength) throw RangeError(WRONG_LENGTH);
    setInternalState(this, {
      buffer: buffer,
      byteLength: byteLength,
      byteOffset: offset
    });
    if (!DESCRIPTORS) {
      this.buffer = buffer;
      this.byteLength = byteLength;
      this.byteOffset = offset;
    }
  };

  DataViewPrototype = $DataView[PROTOTYPE];

  if (DESCRIPTORS) {
    addGetter($ArrayBuffer, 'byteLength');
    addGetter($DataView, 'buffer');
    addGetter($DataView, 'byteLength');
    addGetter($DataView, 'byteOffset');
  }

  redefineAll(DataViewPrototype, {
    getInt8: function getInt8(byteOffset) {
      return get(this, 1, byteOffset)[0] << 24 >> 24;
    },
    getUint8: function getUint8(byteOffset) {
      return get(this, 1, byteOffset)[0];
    },
    getInt16: function getInt16(byteOffset /* , littleEndian */) {
      var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
      return (bytes[1] << 8 | bytes[0]) << 16 >> 16;
    },
    getUint16: function getUint16(byteOffset /* , littleEndian */) {
      var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
      return bytes[1] << 8 | bytes[0];
    },
    getInt32: function getInt32(byteOffset /* , littleEndian */) {
      return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined));
    },
    getUint32: function getUint32(byteOffset /* , littleEndian */) {
      return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined)) >>> 0;
    },
    getFloat32: function getFloat32(byteOffset /* , littleEndian */) {
      return unpackIEEE754(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 23);
    },
    getFloat64: function getFloat64(byteOffset /* , littleEndian */) {
      return unpackIEEE754(get(this, 8, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 52);
    },
    setInt8: function setInt8(byteOffset, value) {
      set(this, 1, byteOffset, packInt8, value);
    },
    setUint8: function setUint8(byteOffset, value) {
      set(this, 1, byteOffset, packInt8, value);
    },
    setInt16: function setInt16(byteOffset, value /* , littleEndian */) {
      set(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setUint16: function setUint16(byteOffset, value /* , littleEndian */) {
      set(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setInt32: function setInt32(byteOffset, value /* , littleEndian */) {
      set(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setUint32: function setUint32(byteOffset, value /* , littleEndian */) {
      set(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setFloat32: function setFloat32(byteOffset, value /* , littleEndian */) {
      set(this, 4, byteOffset, packFloat32, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setFloat64: function setFloat64(byteOffset, value /* , littleEndian */) {
      set(this, 8, byteOffset, packFloat64, value, arguments.length > 2 ? arguments[2] : undefined);
    }
  });
} else {
  var INCORRECT_ARRAY_BUFFER_NAME = PROPER_FUNCTION_NAME && NativeArrayBuffer.name !== ARRAY_BUFFER;
  /* eslint-disable no-new -- required for testing */
  if (!fails(function () {
    NativeArrayBuffer(1);
  }) || !fails(function () {
    new NativeArrayBuffer(-1);
  }) || fails(function () {
    new NativeArrayBuffer();
    new NativeArrayBuffer(1.5);
    new NativeArrayBuffer(NaN);
    return INCORRECT_ARRAY_BUFFER_NAME && !CONFIGURABLE_FUNCTION_NAME;
  })) {
  /* eslint-enable no-new -- required for testing */
    $ArrayBuffer = function ArrayBuffer(length) {
      anInstance(this, ArrayBufferPrototype);
      return new NativeArrayBuffer(toIndex(length));
    };

    $ArrayBuffer[PROTOTYPE] = ArrayBufferPrototype;

    for (var keys = getOwnPropertyNames(NativeArrayBuffer), j = 0, key; keys.length > j;) {
      if (!((key = keys[j++]) in $ArrayBuffer)) {
        createNonEnumerableProperty($ArrayBuffer, key, NativeArrayBuffer[key]);
      }
    }

    ArrayBufferPrototype.constructor = $ArrayBuffer;
  } else if (INCORRECT_ARRAY_BUFFER_NAME && CONFIGURABLE_FUNCTION_NAME) {
    createNonEnumerableProperty(NativeArrayBuffer, 'name', ARRAY_BUFFER);
  }

  // WebKit bug - the same parent prototype for typed arrays and data view
  if (setPrototypeOf && getPrototypeOf(DataViewPrototype) !== ObjectPrototype) {
    setPrototypeOf(DataViewPrototype, ObjectPrototype);
  }

  // iOS Safari 7.x bug
  var testView = new $DataView(new $ArrayBuffer(2));
  var $setInt8 = uncurryThis(DataViewPrototype.setInt8);
  testView.setInt8(0, 2147483648);
  testView.setInt8(1, 2147483649);
  if (testView.getInt8(0) || !testView.getInt8(1)) redefineAll(DataViewPrototype, {
    setInt8: function setInt8(byteOffset, value) {
      $setInt8(this, byteOffset, value << 24 >> 24);
    },
    setUint8: function setUint8(byteOffset, value) {
      $setInt8(this, byteOffset, value << 24 >> 24);
    }
  }, { unsafe: true });
}

setToStringTag($ArrayBuffer, ARRAY_BUFFER);
setToStringTag($DataView, DATA_VIEW);

module.exports = {
  ArrayBuffer: $ArrayBuffer,
  DataView: $DataView
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-copy-within.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/array-copy-within.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");

var min = Math.min;

// `Array.prototype.copyWithin` method implementation
// https://tc39.es/ecma262/#sec-array.prototype.copywithin
// eslint-disable-next-line es/no-array-prototype-copywithin -- safe
module.exports = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {
  var O = toObject(this);
  var len = lengthOfArrayLike(O);
  var to = toAbsoluteIndex(target, len);
  var from = toAbsoluteIndex(start, len);
  var end = arguments.length > 2 ? arguments[2] : undefined;
  var count = min((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);
  var inc = 1;
  if (from < to && to < from + count) {
    inc = -1;
    from += count - 1;
    to += count - 1;
  }
  while (count-- > 0) {
    if (from in O) O[to] = O[from];
    else delete O[to];
    to += inc;
    from += inc;
  } return O;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-fill.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/array-fill.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");

// `Array.prototype.fill` method implementation
// https://tc39.es/ecma262/#sec-array.prototype.fill
module.exports = function fill(value /* , start = 0, end = @length */) {
  var O = toObject(this);
  var length = lengthOfArrayLike(O);
  var argumentsLength = arguments.length;
  var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);
  var end = argumentsLength > 2 ? arguments[2] : undefined;
  var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
  while (endPos > index) O[index++] = value;
  return O;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-for-each.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/array-for-each.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $forEach = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").forEach);
var arrayMethodIsStrict = __webpack_require__(/*! ../internals/array-method-is-strict */ "./node_modules/core-js/internals/array-method-is-strict.js");

var STRICT_METHOD = arrayMethodIsStrict('forEach');

// `Array.prototype.forEach` method implementation
// https://tc39.es/ecma262/#sec-array.prototype.foreach
module.exports = !STRICT_METHOD ? function forEach(callbackfn /* , thisArg */) {
  return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
// eslint-disable-next-line es/no-array-prototype-foreach -- safe
} : [].forEach;


/***/ }),

/***/ "./node_modules/core-js/internals/array-from-async.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/array-from-async.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var isConstructor = __webpack_require__(/*! ../internals/is-constructor */ "./node_modules/core-js/internals/is-constructor.js");
var getAsyncIterator = __webpack_require__(/*! ../internals/get-async-iterator */ "./node_modules/core-js/internals/get-async-iterator.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var getIteratorMethod = __webpack_require__(/*! ../internals/get-iterator-method */ "./node_modules/core-js/internals/get-iterator-method.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var getVirtual = __webpack_require__(/*! ../internals/entry-virtual */ "./node_modules/core-js/internals/entry-virtual.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var AsyncFromSyncIterator = __webpack_require__(/*! ../internals/async-from-sync-iterator */ "./node_modules/core-js/internals/async-from-sync-iterator.js");
var toArray = (__webpack_require__(/*! ../internals/async-iterator-iteration */ "./node_modules/core-js/internals/async-iterator-iteration.js").toArray);

var ASYNC_ITERATOR = wellKnownSymbol('asyncIterator');
var arrayIterator = getVirtual('Array').values;

// `Array.fromAsync` method implementation
// https://github.com/tc39/proposal-array-from-async
module.exports = function fromAsync(asyncItems /* , mapfn = undefined, thisArg = undefined */) {
  var C = this;
  var argumentsLength = arguments.length;
  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
  var thisArg = argumentsLength > 2 ? arguments[2] : undefined;
  return new (getBuiltIn('Promise'))(function (resolve) {
    var O = toObject(asyncItems);
    if (mapfn !== undefined) mapfn = bind(mapfn, thisArg);
    var usingAsyncIterator = getMethod(O, ASYNC_ITERATOR);
    var usingSyncIterator = usingAsyncIterator ? undefined : getIteratorMethod(O) || arrayIterator;
    var A = isConstructor(C) ? new C() : [];
    var iterator = usingAsyncIterator
      ? getAsyncIterator(O, usingAsyncIterator)
      : new AsyncFromSyncIterator(getIterator(O, usingSyncIterator));
    resolve(toArray(iterator, mapfn, A));
  });
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-from-constructor-and-list.js":
/*!***************************************************************************!*\
  !*** ./node_modules/core-js/internals/array-from-constructor-and-list.js ***!
  \***************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");

module.exports = function (Constructor, list) {
  var index = 0;
  var length = lengthOfArrayLike(list);
  var result = new Constructor(length);
  while (length > index) result[index] = list[index++];
  return result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-from.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/array-from.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var callWithSafeIterationClosing = __webpack_require__(/*! ../internals/call-with-safe-iteration-closing */ "./node_modules/core-js/internals/call-with-safe-iteration-closing.js");
var isArrayIteratorMethod = __webpack_require__(/*! ../internals/is-array-iterator-method */ "./node_modules/core-js/internals/is-array-iterator-method.js");
var isConstructor = __webpack_require__(/*! ../internals/is-constructor */ "./node_modules/core-js/internals/is-constructor.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var createProperty = __webpack_require__(/*! ../internals/create-property */ "./node_modules/core-js/internals/create-property.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var getIteratorMethod = __webpack_require__(/*! ../internals/get-iterator-method */ "./node_modules/core-js/internals/get-iterator-method.js");

var Array = global.Array;

// `Array.from` method implementation
// https://tc39.es/ecma262/#sec-array.from
module.exports = function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
  var O = toObject(arrayLike);
  var IS_CONSTRUCTOR = isConstructor(this);
  var argumentsLength = arguments.length;
  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
  var mapping = mapfn !== undefined;
  if (mapping) mapfn = bind(mapfn, argumentsLength > 2 ? arguments[2] : undefined);
  var iteratorMethod = getIteratorMethod(O);
  var index = 0;
  var length, result, step, iterator, next, value;
  // if the target is not iterable or it's an array with the default iterator - use a simple case
  if (iteratorMethod && !(this == Array && isArrayIteratorMethod(iteratorMethod))) {
    iterator = getIterator(O, iteratorMethod);
    next = iterator.next;
    result = IS_CONSTRUCTOR ? new this() : [];
    for (;!(step = call(next, iterator)).done; index++) {
      value = mapping ? callWithSafeIterationClosing(iterator, mapfn, [step.value, index], true) : step.value;
      createProperty(result, index, value);
    }
  } else {
    length = lengthOfArrayLike(O);
    result = IS_CONSTRUCTOR ? new this(length) : Array(length);
    for (;length > index; index++) {
      value = mapping ? mapfn(O[index], index) : O[index];
      createProperty(result, index, value);
    }
  }
  result.length = index;
  return result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-group-by.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/array-group-by.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var IndexedObject = __webpack_require__(/*! ../internals/indexed-object */ "./node_modules/core-js/internals/indexed-object.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var toPropertyKey = __webpack_require__(/*! ../internals/to-property-key */ "./node_modules/core-js/internals/to-property-key.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var objectCreate = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var arrayFromConstructorAndList = __webpack_require__(/*! ../internals/array-from-constructor-and-list */ "./node_modules/core-js/internals/array-from-constructor-and-list.js");

var Array = global.Array;
var push = uncurryThis([].push);

module.exports = function ($this, callbackfn, that, specificConstructor) {
  var O = toObject($this);
  var self = IndexedObject(O);
  var boundFunction = bind(callbackfn, that);
  var target = objectCreate(null);
  var length = lengthOfArrayLike(self);
  var index = 0;
  var Constructor, key, value;
  for (;length > index; index++) {
    value = self[index];
    key = toPropertyKey(boundFunction(value, index, O));
    // in some IE10 builds, `hasOwnProperty` returns incorrect result on integer keys
    // but since it's a `null` prototype object, we can safely use `in`
    if (key in target) push(target[key], value);
    else target[key] = [value];
  }
  // TODO: Remove this block from `core-js@4`
  if (specificConstructor) {
    Constructor = specificConstructor(O);
    if (Constructor !== Array) {
      for (key in target) target[key] = arrayFromConstructorAndList(Constructor, target[key]);
    }
  } return target;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-includes.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/array-includes.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");

// `Array.prototype.{ indexOf, includes }` methods implementation
var createMethod = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIndexedObject($this);
    var length = lengthOfArrayLike(O);
    var index = toAbsoluteIndex(fromIndex, length);
    var value;
    // Array#includes uses SameValueZero equality algorithm
    // eslint-disable-next-line no-self-compare -- NaN check
    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++];
      // eslint-disable-next-line no-self-compare -- NaN check
      if (value != value) return true;
    // Array#indexOf ignores holes, Array#includes - not
    } else for (;length > index; index++) {
      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;
    } return !IS_INCLUDES && -1;
  };
};

module.exports = {
  // `Array.prototype.includes` method
  // https://tc39.es/ecma262/#sec-array.prototype.includes
  includes: createMethod(true),
  // `Array.prototype.indexOf` method
  // https://tc39.es/ecma262/#sec-array.prototype.indexof
  indexOf: createMethod(false)
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-iteration-from-last.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/internals/array-iteration-from-last.js ***!
  \*********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var IndexedObject = __webpack_require__(/*! ../internals/indexed-object */ "./node_modules/core-js/internals/indexed-object.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");

// `Array.prototype.{ findLast, findLastIndex }` methods implementation
var createMethod = function (TYPE) {
  var IS_FIND_LAST_INDEX = TYPE == 1;
  return function ($this, callbackfn, that) {
    var O = toObject($this);
    var self = IndexedObject(O);
    var boundFunction = bind(callbackfn, that);
    var index = lengthOfArrayLike(self);
    var value, result;
    while (index-- > 0) {
      value = self[index];
      result = boundFunction(value, index, O);
      if (result) switch (TYPE) {
        case 0: return value; // findLast
        case 1: return index; // findLastIndex
      }
    }
    return IS_FIND_LAST_INDEX ? -1 : undefined;
  };
};

module.exports = {
  // `Array.prototype.findLast` method
  // https://github.com/tc39/proposal-array-find-from-last
  findLast: createMethod(0),
  // `Array.prototype.findLastIndex` method
  // https://github.com/tc39/proposal-array-find-from-last
  findLastIndex: createMethod(1)
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-iteration.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/array-iteration.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var IndexedObject = __webpack_require__(/*! ../internals/indexed-object */ "./node_modules/core-js/internals/indexed-object.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var arraySpeciesCreate = __webpack_require__(/*! ../internals/array-species-create */ "./node_modules/core-js/internals/array-species-create.js");

var push = uncurryThis([].push);

// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex, filterReject }` methods implementation
var createMethod = function (TYPE) {
  var IS_MAP = TYPE == 1;
  var IS_FILTER = TYPE == 2;
  var IS_SOME = TYPE == 3;
  var IS_EVERY = TYPE == 4;
  var IS_FIND_INDEX = TYPE == 6;
  var IS_FILTER_REJECT = TYPE == 7;
  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
  return function ($this, callbackfn, that, specificCreate) {
    var O = toObject($this);
    var self = IndexedObject(O);
    var boundFunction = bind(callbackfn, that);
    var length = lengthOfArrayLike(self);
    var index = 0;
    var create = specificCreate || arraySpeciesCreate;
    var target = IS_MAP ? create($this, length) : IS_FILTER || IS_FILTER_REJECT ? create($this, 0) : undefined;
    var value, result;
    for (;length > index; index++) if (NO_HOLES || index in self) {
      value = self[index];
      result = boundFunction(value, index, O);
      if (TYPE) {
        if (IS_MAP) target[index] = result; // map
        else if (result) switch (TYPE) {
          case 3: return true;              // some
          case 5: return value;             // find
          case 6: return index;             // findIndex
          case 2: push(target, value);      // filter
        } else switch (TYPE) {
          case 4: return false;             // every
          case 7: push(target, value);      // filterReject
        }
      }
    }
    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;
  };
};

module.exports = {
  // `Array.prototype.forEach` method
  // https://tc39.es/ecma262/#sec-array.prototype.foreach
  forEach: createMethod(0),
  // `Array.prototype.map` method
  // https://tc39.es/ecma262/#sec-array.prototype.map
  map: createMethod(1),
  // `Array.prototype.filter` method
  // https://tc39.es/ecma262/#sec-array.prototype.filter
  filter: createMethod(2),
  // `Array.prototype.some` method
  // https://tc39.es/ecma262/#sec-array.prototype.some
  some: createMethod(3),
  // `Array.prototype.every` method
  // https://tc39.es/ecma262/#sec-array.prototype.every
  every: createMethod(4),
  // `Array.prototype.find` method
  // https://tc39.es/ecma262/#sec-array.prototype.find
  find: createMethod(5),
  // `Array.prototype.findIndex` method
  // https://tc39.es/ecma262/#sec-array.prototype.findIndex
  findIndex: createMethod(6),
  // `Array.prototype.filterReject` method
  // https://github.com/tc39/proposal-array-filtering
  filterReject: createMethod(7)
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-last-index-of.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/internals/array-last-index-of.js ***!
  \***************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

/* eslint-disable es/no-array-prototype-lastindexof -- safe */
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var arrayMethodIsStrict = __webpack_require__(/*! ../internals/array-method-is-strict */ "./node_modules/core-js/internals/array-method-is-strict.js");

var min = Math.min;
var $lastIndexOf = [].lastIndexOf;
var NEGATIVE_ZERO = !!$lastIndexOf && 1 / [1].lastIndexOf(1, -0) < 0;
var STRICT_METHOD = arrayMethodIsStrict('lastIndexOf');
var FORCED = NEGATIVE_ZERO || !STRICT_METHOD;

// `Array.prototype.lastIndexOf` method implementation
// https://tc39.es/ecma262/#sec-array.prototype.lastindexof
module.exports = FORCED ? function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {
  // convert -0 to +0
  if (NEGATIVE_ZERO) return apply($lastIndexOf, this, arguments) || 0;
  var O = toIndexedObject(this);
  var length = lengthOfArrayLike(O);
  var index = length - 1;
  if (arguments.length > 1) index = min(index, toIntegerOrInfinity(arguments[1]));
  if (index < 0) index = length + index;
  for (;index >= 0; index--) if (index in O && O[index] === searchElement) return index || 0;
  return -1;
} : $lastIndexOf;


/***/ }),

/***/ "./node_modules/core-js/internals/array-method-has-species-support.js":
/*!****************************************************************************!*\
  !*** ./node_modules/core-js/internals/array-method-has-species-support.js ***!
  \****************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var V8_VERSION = __webpack_require__(/*! ../internals/engine-v8-version */ "./node_modules/core-js/internals/engine-v8-version.js");

var SPECIES = wellKnownSymbol('species');

module.exports = function (METHOD_NAME) {
  // We can't use this feature detection in V8 since it causes
  // deoptimization and serious performance degradation
  // https://github.com/zloirock/core-js/issues/677
  return V8_VERSION >= 51 || !fails(function () {
    var array = [];
    var constructor = array.constructor = {};
    constructor[SPECIES] = function () {
      return { foo: 1 };
    };
    return array[METHOD_NAME](Boolean).foo !== 1;
  });
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-method-is-strict.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/internals/array-method-is-strict.js ***!
  \******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

module.exports = function (METHOD_NAME, argument) {
  var method = [][METHOD_NAME];
  return !!method && fails(function () {
    // eslint-disable-next-line no-useless-call,no-throw-literal -- required for testing
    method.call(null, argument || function () { throw 1; }, 1);
  });
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-reduce.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/internals/array-reduce.js ***!
  \********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var IndexedObject = __webpack_require__(/*! ../internals/indexed-object */ "./node_modules/core-js/internals/indexed-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");

var TypeError = global.TypeError;

// `Array.prototype.{ reduce, reduceRight }` methods implementation
var createMethod = function (IS_RIGHT) {
  return function (that, callbackfn, argumentsLength, memo) {
    aCallable(callbackfn);
    var O = toObject(that);
    var self = IndexedObject(O);
    var length = lengthOfArrayLike(O);
    var index = IS_RIGHT ? length - 1 : 0;
    var i = IS_RIGHT ? -1 : 1;
    if (argumentsLength < 2) while (true) {
      if (index in self) {
        memo = self[index];
        index += i;
        break;
      }
      index += i;
      if (IS_RIGHT ? index < 0 : length <= index) {
        throw TypeError('Reduce of empty array with no initial value');
      }
    }
    for (;IS_RIGHT ? index >= 0 : length > index; index += i) if (index in self) {
      memo = callbackfn(memo, self[index], index, O);
    }
    return memo;
  };
};

module.exports = {
  // `Array.prototype.reduce` method
  // https://tc39.es/ecma262/#sec-array.prototype.reduce
  left: createMethod(false),
  // `Array.prototype.reduceRight` method
  // https://tc39.es/ecma262/#sec-array.prototype.reduceright
  right: createMethod(true)
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-slice-simple.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/array-slice-simple.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var createProperty = __webpack_require__(/*! ../internals/create-property */ "./node_modules/core-js/internals/create-property.js");

var Array = global.Array;
var max = Math.max;

module.exports = function (O, start, end) {
  var length = lengthOfArrayLike(O);
  var k = toAbsoluteIndex(start, length);
  var fin = toAbsoluteIndex(end === undefined ? length : end, length);
  var result = Array(max(fin - k, 0));
  for (var n = 0; k < fin; k++, n++) createProperty(result, n, O[k]);
  result.length = n;
  return result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-slice.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/array-slice.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

module.exports = uncurryThis([].slice);


/***/ }),

/***/ "./node_modules/core-js/internals/array-sort.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/array-sort.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var arraySlice = __webpack_require__(/*! ../internals/array-slice-simple */ "./node_modules/core-js/internals/array-slice-simple.js");

var floor = Math.floor;

var mergeSort = function (array, comparefn) {
  var length = array.length;
  var middle = floor(length / 2);
  return length < 8 ? insertionSort(array, comparefn) : merge(
    array,
    mergeSort(arraySlice(array, 0, middle), comparefn),
    mergeSort(arraySlice(array, middle), comparefn),
    comparefn
  );
};

var insertionSort = function (array, comparefn) {
  var length = array.length;
  var i = 1;
  var element, j;

  while (i < length) {
    j = i;
    element = array[i];
    while (j && comparefn(array[j - 1], element) > 0) {
      array[j] = array[--j];
    }
    if (j !== i++) array[j] = element;
  } return array;
};

var merge = function (array, left, right, comparefn) {
  var llength = left.length;
  var rlength = right.length;
  var lindex = 0;
  var rindex = 0;

  while (lindex < llength || rindex < rlength) {
    array[lindex + rindex] = (lindex < llength && rindex < rlength)
      ? comparefn(left[lindex], right[rindex]) <= 0 ? left[lindex++] : right[rindex++]
      : lindex < llength ? left[lindex++] : right[rindex++];
  } return array;
};

module.exports = mergeSort;


/***/ }),

/***/ "./node_modules/core-js/internals/array-species-constructor.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/internals/array-species-constructor.js ***!
  \*********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var isArray = __webpack_require__(/*! ../internals/is-array */ "./node_modules/core-js/internals/is-array.js");
var isConstructor = __webpack_require__(/*! ../internals/is-constructor */ "./node_modules/core-js/internals/is-constructor.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var SPECIES = wellKnownSymbol('species');
var Array = global.Array;

// a part of `ArraySpeciesCreate` abstract operation
// https://tc39.es/ecma262/#sec-arrayspeciescreate
module.exports = function (originalArray) {
  var C;
  if (isArray(originalArray)) {
    C = originalArray.constructor;
    // cross-realm fallback
    if (isConstructor(C) && (C === Array || isArray(C.prototype))) C = undefined;
    else if (isObject(C)) {
      C = C[SPECIES];
      if (C === null) C = undefined;
    }
  } return C === undefined ? Array : C;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-species-create.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/internals/array-species-create.js ***!
  \****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var arraySpeciesConstructor = __webpack_require__(/*! ../internals/array-species-constructor */ "./node_modules/core-js/internals/array-species-constructor.js");

// `ArraySpeciesCreate` abstract operation
// https://tc39.es/ecma262/#sec-arrayspeciescreate
module.exports = function (originalArray, length) {
  return new (arraySpeciesConstructor(originalArray))(length === 0 ? 0 : length);
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-to-reversed.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/array-to-reversed.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");

// https://tc39.es/proposal-change-array-by-copy/#sec-array.prototype.toReversed
// https://tc39.es/proposal-change-array-by-copy/#sec-%typedarray%.prototype.toReversed
module.exports = function (O, C) {
  var len = lengthOfArrayLike(O);
  var A = new C(len);
  var k = 0;
  for (; k < len; k++) A[k] = O[len - k - 1];
  return A;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-to-spliced.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/array-to-spliced.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");

var max = Math.max;
var min = Math.min;

// https://tc39.es/proposal-change-array-by-copy/#sec-array.prototype.toSpliced
// https://tc39.es/proposal-change-array-by-copy/#sec-%typedarray%.prototype.toSpliced
module.exports = function (O, C, args) {
  var start = args[0];
  var deleteCount = args[1];
  var len = lengthOfArrayLike(O);
  var actualStart = toAbsoluteIndex(start, len);
  var argumentsLength = args.length;
  var k = 0;
  var insertCount, actualDeleteCount, newLen, A;
  if (argumentsLength === 0) {
    insertCount = actualDeleteCount = 0;
  } else if (argumentsLength === 1) {
    insertCount = 0;
    actualDeleteCount = len - actualStart;
  } else {
    insertCount = argumentsLength - 2;
    actualDeleteCount = min(max(toIntegerOrInfinity(deleteCount), 0), len - actualStart);
  }
  newLen = len + insertCount - actualDeleteCount;
  A = new C(newLen);

  for (; k < actualStart; k++) A[k] = O[k];
  for (; k < actualStart + insertCount; k++) A[k] = args[k - actualStart + 2];
  for (; k < newLen; k++) A[k] = O[k + actualDeleteCount - insertCount];

  return A;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-unique-by.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/array-unique-by.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var arraySpeciesCreate = __webpack_require__(/*! ../internals/array-species-create */ "./node_modules/core-js/internals/array-species-create.js");

var Map = getBuiltIn('Map');
var MapPrototype = Map.prototype;
var mapForEach = uncurryThis(MapPrototype.forEach);
var mapHas = uncurryThis(MapPrototype.has);
var mapSet = uncurryThis(MapPrototype.set);
var push = uncurryThis([].push);

// `Array.prototype.uniqueBy` method
// https://github.com/tc39/proposal-array-unique
module.exports = function uniqueBy(resolver) {
  var that = toObject(this);
  var length = lengthOfArrayLike(that);
  var result = arraySpeciesCreate(that, 0);
  var map = new Map();
  var resolverFunction = resolver != null ? aCallable(resolver) : function (value) {
    return value;
  };
  var index, item, key;
  for (index = 0; index < length; index++) {
    item = that[index];
    key = resolverFunction(item);
    if (!mapHas(map, key)) mapSet(map, key, item);
  }
  mapForEach(map, function (value) {
    push(result, value);
  });
  return result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/array-with.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/array-with.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");

var RangeError = global.RangeError;

// https://tc39.es/proposal-change-array-by-copy/#sec-array.prototype.with
// https://tc39.es/proposal-change-array-by-copy/#sec-%typedarray%.prototype.with
module.exports = function (O, C, index, value) {
  var len = lengthOfArrayLike(O);
  var relativeIndex = toIntegerOrInfinity(index);
  var actualIndex = relativeIndex < 0 ? len + relativeIndex : relativeIndex;
  if (actualIndex >= len || actualIndex < 0) throw RangeError('Incorrect index');
  var A = new C(len);
  var k = 0;
  for (; k < len; k++) A[k] = k === actualIndex ? value : O[k];
  return A;
};


/***/ }),

/***/ "./node_modules/core-js/internals/async-from-sync-iterator.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/async-from-sync-iterator.js ***!
  \********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var AsyncIteratorPrototype = __webpack_require__(/*! ../internals/async-iterator-prototype */ "./node_modules/core-js/internals/async-iterator-prototype.js");

var Promise = getBuiltIn('Promise');

var ASYNC_FROM_SYNC_ITERATOR = 'AsyncFromSyncIterator';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(ASYNC_FROM_SYNC_ITERATOR);

var asyncFromSyncIteratorContinuation = function (result, resolve, reject) {
  var done = result.done;
  Promise.resolve(result.value).then(function (value) {
    resolve({ done: done, value: value });
  }, reject);
};

var AsyncFromSyncIterator = function AsyncIterator(iterator) {
  setInternalState(this, {
    type: ASYNC_FROM_SYNC_ITERATOR,
    iterator: anObject(iterator),
    next: iterator.next
  });
};

AsyncFromSyncIterator.prototype = redefineAll(create(AsyncIteratorPrototype), {
  next: function next(arg) {
    var state = getInternalState(this);
    var hasArg = !!arguments.length;
    return new Promise(function (resolve, reject) {
      var result = anObject(apply(state.next, state.iterator, hasArg ? [arg] : []));
      asyncFromSyncIteratorContinuation(result, resolve, reject);
    });
  },
  'return': function (arg) {
    var iterator = getInternalState(this).iterator;
    var hasArg = !!arguments.length;
    return new Promise(function (resolve, reject) {
      var $return = getMethod(iterator, 'return');
      if ($return === undefined) return resolve({ done: true, value: arg });
      var result = anObject(apply($return, iterator, hasArg ? [arg] : []));
      asyncFromSyncIteratorContinuation(result, resolve, reject);
    });
  },
  'throw': function (arg) {
    var iterator = getInternalState(this).iterator;
    var hasArg = !!arguments.length;
    return new Promise(function (resolve, reject) {
      var $throw = getMethod(iterator, 'throw');
      if ($throw === undefined) return reject(arg);
      var result = anObject(apply($throw, iterator, hasArg ? [arg] : []));
      asyncFromSyncIteratorContinuation(result, resolve, reject);
    });
  }
});

module.exports = AsyncFromSyncIterator;


/***/ }),

/***/ "./node_modules/core-js/internals/async-iterator-create-proxy.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/internals/async-iterator-create-proxy.js ***!
  \***********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var AsyncIteratorPrototype = __webpack_require__(/*! ../internals/async-iterator-prototype */ "./node_modules/core-js/internals/async-iterator-prototype.js");

var Promise = getBuiltIn('Promise');

var ASYNC_ITERATOR_PROXY = 'AsyncIteratorProxy';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(ASYNC_ITERATOR_PROXY);

var TO_STRING_TAG = wellKnownSymbol('toStringTag');

module.exports = function (nextHandler, IS_ITERATOR) {
  var AsyncIteratorProxy = function AsyncIterator(state) {
    state.type = ASYNC_ITERATOR_PROXY;
    state.next = aCallable(state.iterator.next);
    state.done = false;
    state.ignoreArgument = !IS_ITERATOR;
    setInternalState(this, state);
  };

  AsyncIteratorProxy.prototype = redefineAll(create(AsyncIteratorPrototype), {
    next: function next(arg) {
      var that = this;
      var hasArgument = !!arguments.length;
      return new Promise(function (resolve) {
        var state = getInternalState(that);
        var args = hasArgument ? [state.ignoreArgument ? undefined : arg] : IS_ITERATOR ? [] : [undefined];
        state.ignoreArgument = false;
        resolve(state.done ? { done: true, value: undefined } : anObject(call(nextHandler, state, Promise, args)));
      });
    },
    'return': function (value) {
      var that = this;
      return new Promise(function (resolve, reject) {
        var state = getInternalState(that);
        var iterator = state.iterator;
        state.done = true;
        var $$return = getMethod(iterator, 'return');
        if ($$return === undefined) return resolve({ done: true, value: value });
        Promise.resolve(call($$return, iterator, value)).then(function (result) {
          anObject(result);
          resolve({ done: true, value: value });
        }, reject);
      });
    },
    'throw': function (value) {
      var that = this;
      return new Promise(function (resolve, reject) {
        var state = getInternalState(that);
        var iterator = state.iterator;
        state.done = true;
        var $$throw = getMethod(iterator, 'throw');
        if ($$throw === undefined) return reject(value);
        resolve(call($$throw, iterator, value));
      });
    }
  });

  if (!IS_ITERATOR) {
    createNonEnumerableProperty(AsyncIteratorProxy.prototype, TO_STRING_TAG, 'Generator');
  }

  return AsyncIteratorProxy;
};


/***/ }),

/***/ "./node_modules/core-js/internals/async-iterator-iteration.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/async-iterator-iteration.js ***!
  \********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
// https://github.com/tc39/proposal-array-from-async
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");

var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
var TypeError = global.TypeError;

var createMethod = function (TYPE) {
  var IS_TO_ARRAY = TYPE == 0;
  var IS_FOR_EACH = TYPE == 1;
  var IS_EVERY = TYPE == 2;
  var IS_SOME = TYPE == 3;
  return function (iterator, fn, target) {
    anObject(iterator);
    var Promise = getBuiltIn('Promise');
    var next = aCallable(iterator.next);
    var index = 0;
    var MAPPING = fn !== undefined;
    if (MAPPING || !IS_TO_ARRAY) aCallable(fn);

    return new Promise(function (resolve, reject) {
      var closeIteration = function (method, argument) {
        try {
          var returnMethod = getMethod(iterator, 'return');
          if (returnMethod) {
            return Promise.resolve(call(returnMethod, iterator)).then(function () {
              method(argument);
            }, function (error) {
              reject(error);
            });
          }
        } catch (error2) {
          return reject(error2);
        } method(argument);
      };

      var onError = function (error) {
        closeIteration(reject, error);
      };

      var loop = function () {
        try {
          if (IS_TO_ARRAY && (index > MAX_SAFE_INTEGER) && MAPPING) {
            throw TypeError('The allowed number of iterations has been exceeded');
          }
          Promise.resolve(anObject(call(next, iterator))).then(function (step) {
            try {
              if (anObject(step).done) {
                if (IS_TO_ARRAY) {
                  target.length = index;
                  resolve(target);
                } else resolve(IS_SOME ? false : IS_EVERY || undefined);
              } else {
                var value = step.value;
                if (MAPPING) {
                  Promise.resolve(IS_TO_ARRAY ? fn(value, index) : fn(value)).then(function (result) {
                    if (IS_FOR_EACH) {
                      loop();
                    } else if (IS_EVERY) {
                      result ? loop() : closeIteration(resolve, false);
                    } else if (IS_TO_ARRAY) {
                      target[index++] = result;
                      loop();
                    } else {
                      result ? closeIteration(resolve, IS_SOME || value) : loop();
                    }
                  }, onError);
                } else {
                  target[index++] = value;
                  loop();
                }
              }
            } catch (error) { onError(error); }
          }, onError);
        } catch (error2) { onError(error2); }
      };

      loop();
    });
  };
};

module.exports = {
  toArray: createMethod(0),
  forEach: createMethod(1),
  every: createMethod(2),
  some: createMethod(3),
  find: createMethod(4)
};


/***/ }),

/***/ "./node_modules/core-js/internals/async-iterator-prototype.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/async-iterator-prototype.js ***!
  \********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var shared = __webpack_require__(/*! ../internals/shared-store */ "./node_modules/core-js/internals/shared-store.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

var USE_FUNCTION_CONSTRUCTOR = 'USE_FUNCTION_CONSTRUCTOR';
var ASYNC_ITERATOR = wellKnownSymbol('asyncIterator');
var AsyncIterator = global.AsyncIterator;
var PassedAsyncIteratorPrototype = shared.AsyncIteratorPrototype;
var AsyncIteratorPrototype, prototype;

if (PassedAsyncIteratorPrototype) {
  AsyncIteratorPrototype = PassedAsyncIteratorPrototype;
} else if (isCallable(AsyncIterator)) {
  AsyncIteratorPrototype = AsyncIterator.prototype;
} else if (shared[USE_FUNCTION_CONSTRUCTOR] || global[USE_FUNCTION_CONSTRUCTOR]) {
  try {
    // eslint-disable-next-line no-new-func -- we have no alternatives without usage of modern syntax
    prototype = getPrototypeOf(getPrototypeOf(getPrototypeOf(Function('return async function*(){}()')())));
    if (getPrototypeOf(prototype) === Object.prototype) AsyncIteratorPrototype = prototype;
  } catch (error) { /* empty */ }
}

if (!AsyncIteratorPrototype) AsyncIteratorPrototype = {};
else if (IS_PURE) AsyncIteratorPrototype = create(AsyncIteratorPrototype);

if (!isCallable(AsyncIteratorPrototype[ASYNC_ITERATOR])) {
  redefine(AsyncIteratorPrototype, ASYNC_ITERATOR, function () {
    return this;
  });
}

module.exports = AsyncIteratorPrototype;


/***/ }),

/***/ "./node_modules/core-js/internals/base64-map.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/base64-map.js ***!
  \******************************************************/
/***/ ((module) => {

var itoc = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
var ctoi = {};

for (var index = 0; index < 66; index++) ctoi[itoc.charAt(index)] = index;

module.exports = {
  itoc: itoc,
  ctoi: ctoi
};


/***/ }),

/***/ "./node_modules/core-js/internals/call-with-safe-iteration-closing.js":
/*!****************************************************************************!*\
  !*** ./node_modules/core-js/internals/call-with-safe-iteration-closing.js ***!
  \****************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var iteratorClose = __webpack_require__(/*! ../internals/iterator-close */ "./node_modules/core-js/internals/iterator-close.js");

// call something on iterator step with safe closing on error
module.exports = function (iterator, fn, value, ENTRIES) {
  try {
    return ENTRIES ? fn(anObject(value)[0], value[1]) : fn(value);
  } catch (error) {
    iteratorClose(iterator, 'throw', error);
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/check-correctness-of-iteration.js":
/*!**************************************************************************!*\
  !*** ./node_modules/core-js/internals/check-correctness-of-iteration.js ***!
  \**************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var ITERATOR = wellKnownSymbol('iterator');
var SAFE_CLOSING = false;

try {
  var called = 0;
  var iteratorWithReturn = {
    next: function () {
      return { done: !!called++ };
    },
    'return': function () {
      SAFE_CLOSING = true;
    }
  };
  iteratorWithReturn[ITERATOR] = function () {
    return this;
  };
  // eslint-disable-next-line es/no-array-from, no-throw-literal -- required for testing
  Array.from(iteratorWithReturn, function () { throw 2; });
} catch (error) { /* empty */ }

module.exports = function (exec, SKIP_CLOSING) {
  if (!SKIP_CLOSING && !SAFE_CLOSING) return false;
  var ITERATION_SUPPORT = false;
  try {
    var object = {};
    object[ITERATOR] = function () {
      return {
        next: function () {
          return { done: ITERATION_SUPPORT = true };
        }
      };
    };
    exec(object);
  } catch (error) { /* empty */ }
  return ITERATION_SUPPORT;
};


/***/ }),

/***/ "./node_modules/core-js/internals/classof-raw.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/classof-raw.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

var toString = uncurryThis({}.toString);
var stringSlice = uncurryThis(''.slice);

module.exports = function (it) {
  return stringSlice(toString(it), 8, -1);
};


/***/ }),

/***/ "./node_modules/core-js/internals/classof.js":
/*!***************************************************!*\
  !*** ./node_modules/core-js/internals/classof.js ***!
  \***************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var TO_STRING_TAG_SUPPORT = __webpack_require__(/*! ../internals/to-string-tag-support */ "./node_modules/core-js/internals/to-string-tag-support.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var classofRaw = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var Object = global.Object;

// ES3 wrong here
var CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';

// fallback for IE11 Script Access Denied error
var tryGet = function (it, key) {
  try {
    return it[key];
  } catch (error) { /* empty */ }
};

// getting tag from ES6+ `Object.prototype.toString`
module.exports = TO_STRING_TAG_SUPPORT ? classofRaw : function (it) {
  var O, tag, result;
  return it === undefined ? 'Undefined' : it === null ? 'Null'
    // @@toStringTag case
    : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG)) == 'string' ? tag
    // builtinTag case
    : CORRECT_ARGUMENTS ? classofRaw(O)
    // ES3 arguments fallback
    : (result = classofRaw(O)) == 'Object' && isCallable(O.callee) ? 'Arguments' : result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/clear-error-stack.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/clear-error-stack.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

var replace = uncurryThis(''.replace);

var TEST = (function (arg) { return String(Error(arg).stack); })('zxcasd');
var V8_OR_CHAKRA_STACK_ENTRY = /\n\s*at [^:]*:[^\n]*/;
var IS_V8_OR_CHAKRA_STACK = V8_OR_CHAKRA_STACK_ENTRY.test(TEST);

module.exports = function (stack, dropEntries) {
  if (IS_V8_OR_CHAKRA_STACK && typeof stack == 'string') {
    while (dropEntries--) stack = replace(stack, V8_OR_CHAKRA_STACK_ENTRY, '');
  } return stack;
};


/***/ }),

/***/ "./node_modules/core-js/internals/collection-add-all.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/collection-add-all.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

// https://github.com/tc39/collection-methods
module.exports = function addAll(/* ...elements */) {
  var set = anObject(this);
  var adder = aCallable(set.add);
  for (var k = 0, len = arguments.length; k < len; k++) {
    call(adder, set, arguments[k]);
  }
  return set;
};


/***/ }),

/***/ "./node_modules/core-js/internals/collection-delete-all.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/internals/collection-delete-all.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

// https://github.com/tc39/collection-methods
module.exports = function deleteAll(/* ...elements */) {
  var collection = anObject(this);
  var remover = aCallable(collection['delete']);
  var allDeleted = true;
  var wasDeleted;
  for (var k = 0, len = arguments.length; k < len; k++) {
    wasDeleted = call(remover, collection, arguments[k]);
    allDeleted = allDeleted && wasDeleted;
  }
  return !!allDeleted;
};


/***/ }),

/***/ "./node_modules/core-js/internals/collection-from.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/collection-from.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://tc39.github.io/proposal-setmap-offrom/
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var aConstructor = __webpack_require__(/*! ../internals/a-constructor */ "./node_modules/core-js/internals/a-constructor.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

var push = [].push;

module.exports = function from(source /* , mapFn, thisArg */) {
  var length = arguments.length;
  var mapFn = length > 1 ? arguments[1] : undefined;
  var mapping, array, n, boundFunction;
  aConstructor(this);
  mapping = mapFn !== undefined;
  if (mapping) aCallable(mapFn);
  if (source == undefined) return new this();
  array = [];
  if (mapping) {
    n = 0;
    boundFunction = bind(mapFn, length > 2 ? arguments[2] : undefined);
    iterate(source, function (nextItem) {
      call(push, array, boundFunction(nextItem, n++));
    });
  } else {
    iterate(source, push, { that: array });
  }
  return new this(array);
};


/***/ }),

/***/ "./node_modules/core-js/internals/collection-of.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/collection-of.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var arraySlice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");

// https://tc39.github.io/proposal-setmap-offrom/
module.exports = function of() {
  return new this(arraySlice(arguments));
};


/***/ }),

/***/ "./node_modules/core-js/internals/collection-strong.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/collection-strong.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var defineIterator = __webpack_require__(/*! ../internals/define-iterator */ "./node_modules/core-js/internals/define-iterator.js");
var setSpecies = __webpack_require__(/*! ../internals/set-species */ "./node_modules/core-js/internals/set-species.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var fastKey = (__webpack_require__(/*! ../internals/internal-metadata */ "./node_modules/core-js/internals/internal-metadata.js").fastKey);
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");

var setInternalState = InternalStateModule.set;
var internalStateGetterFor = InternalStateModule.getterFor;

module.exports = {
  getConstructor: function (wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER) {
    var Constructor = wrapper(function (that, iterable) {
      anInstance(that, Prototype);
      setInternalState(that, {
        type: CONSTRUCTOR_NAME,
        index: create(null),
        first: undefined,
        last: undefined,
        size: 0
      });
      if (!DESCRIPTORS) that.size = 0;
      if (iterable != undefined) iterate(iterable, that[ADDER], { that: that, AS_ENTRIES: IS_MAP });
    });

    var Prototype = Constructor.prototype;

    var getInternalState = internalStateGetterFor(CONSTRUCTOR_NAME);

    var define = function (that, key, value) {
      var state = getInternalState(that);
      var entry = getEntry(that, key);
      var previous, index;
      // change existing entry
      if (entry) {
        entry.value = value;
      // create new entry
      } else {
        state.last = entry = {
          index: index = fastKey(key, true),
          key: key,
          value: value,
          previous: previous = state.last,
          next: undefined,
          removed: false
        };
        if (!state.first) state.first = entry;
        if (previous) previous.next = entry;
        if (DESCRIPTORS) state.size++;
        else that.size++;
        // add to index
        if (index !== 'F') state.index[index] = entry;
      } return that;
    };

    var getEntry = function (that, key) {
      var state = getInternalState(that);
      // fast case
      var index = fastKey(key);
      var entry;
      if (index !== 'F') return state.index[index];
      // frozen object case
      for (entry = state.first; entry; entry = entry.next) {
        if (entry.key == key) return entry;
      }
    };

    redefineAll(Prototype, {
      // `{ Map, Set }.prototype.clear()` methods
      // https://tc39.es/ecma262/#sec-map.prototype.clear
      // https://tc39.es/ecma262/#sec-set.prototype.clear
      clear: function clear() {
        var that = this;
        var state = getInternalState(that);
        var data = state.index;
        var entry = state.first;
        while (entry) {
          entry.removed = true;
          if (entry.previous) entry.previous = entry.previous.next = undefined;
          delete data[entry.index];
          entry = entry.next;
        }
        state.first = state.last = undefined;
        if (DESCRIPTORS) state.size = 0;
        else that.size = 0;
      },
      // `{ Map, Set }.prototype.delete(key)` methods
      // https://tc39.es/ecma262/#sec-map.prototype.delete
      // https://tc39.es/ecma262/#sec-set.prototype.delete
      'delete': function (key) {
        var that = this;
        var state = getInternalState(that);
        var entry = getEntry(that, key);
        if (entry) {
          var next = entry.next;
          var prev = entry.previous;
          delete state.index[entry.index];
          entry.removed = true;
          if (prev) prev.next = next;
          if (next) next.previous = prev;
          if (state.first == entry) state.first = next;
          if (state.last == entry) state.last = prev;
          if (DESCRIPTORS) state.size--;
          else that.size--;
        } return !!entry;
      },
      // `{ Map, Set }.prototype.forEach(callbackfn, thisArg = undefined)` methods
      // https://tc39.es/ecma262/#sec-map.prototype.foreach
      // https://tc39.es/ecma262/#sec-set.prototype.foreach
      forEach: function forEach(callbackfn /* , that = undefined */) {
        var state = getInternalState(this);
        var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
        var entry;
        while (entry = entry ? entry.next : state.first) {
          boundFunction(entry.value, entry.key, this);
          // revert to the last existing entry
          while (entry && entry.removed) entry = entry.previous;
        }
      },
      // `{ Map, Set}.prototype.has(key)` methods
      // https://tc39.es/ecma262/#sec-map.prototype.has
      // https://tc39.es/ecma262/#sec-set.prototype.has
      has: function has(key) {
        return !!getEntry(this, key);
      }
    });

    redefineAll(Prototype, IS_MAP ? {
      // `Map.prototype.get(key)` method
      // https://tc39.es/ecma262/#sec-map.prototype.get
      get: function get(key) {
        var entry = getEntry(this, key);
        return entry && entry.value;
      },
      // `Map.prototype.set(key, value)` method
      // https://tc39.es/ecma262/#sec-map.prototype.set
      set: function set(key, value) {
        return define(this, key === 0 ? 0 : key, value);
      }
    } : {
      // `Set.prototype.add(value)` method
      // https://tc39.es/ecma262/#sec-set.prototype.add
      add: function add(value) {
        return define(this, value = value === 0 ? 0 : value, value);
      }
    });
    if (DESCRIPTORS) defineProperty(Prototype, 'size', {
      get: function () {
        return getInternalState(this).size;
      }
    });
    return Constructor;
  },
  setStrong: function (Constructor, CONSTRUCTOR_NAME, IS_MAP) {
    var ITERATOR_NAME = CONSTRUCTOR_NAME + ' Iterator';
    var getInternalCollectionState = internalStateGetterFor(CONSTRUCTOR_NAME);
    var getInternalIteratorState = internalStateGetterFor(ITERATOR_NAME);
    // `{ Map, Set }.prototype.{ keys, values, entries, @@iterator }()` methods
    // https://tc39.es/ecma262/#sec-map.prototype.entries
    // https://tc39.es/ecma262/#sec-map.prototype.keys
    // https://tc39.es/ecma262/#sec-map.prototype.values
    // https://tc39.es/ecma262/#sec-map.prototype-@@iterator
    // https://tc39.es/ecma262/#sec-set.prototype.entries
    // https://tc39.es/ecma262/#sec-set.prototype.keys
    // https://tc39.es/ecma262/#sec-set.prototype.values
    // https://tc39.es/ecma262/#sec-set.prototype-@@iterator
    defineIterator(Constructor, CONSTRUCTOR_NAME, function (iterated, kind) {
      setInternalState(this, {
        type: ITERATOR_NAME,
        target: iterated,
        state: getInternalCollectionState(iterated),
        kind: kind,
        last: undefined
      });
    }, function () {
      var state = getInternalIteratorState(this);
      var kind = state.kind;
      var entry = state.last;
      // revert to the last existing entry
      while (entry && entry.removed) entry = entry.previous;
      // get next entry
      if (!state.target || !(state.last = entry = entry ? entry.next : state.state.first)) {
        // or finish the iteration
        state.target = undefined;
        return { value: undefined, done: true };
      }
      // return step by kind
      if (kind == 'keys') return { value: entry.key, done: false };
      if (kind == 'values') return { value: entry.value, done: false };
      return { value: [entry.key, entry.value], done: false };
    }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);

    // `{ Map, Set }.prototype[@@species]` accessors
    // https://tc39.es/ecma262/#sec-get-map-@@species
    // https://tc39.es/ecma262/#sec-get-set-@@species
    setSpecies(CONSTRUCTOR_NAME);
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/collection-weak.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/collection-weak.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var getWeakData = (__webpack_require__(/*! ../internals/internal-metadata */ "./node_modules/core-js/internals/internal-metadata.js").getWeakData);
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var ArrayIterationModule = __webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");

var setInternalState = InternalStateModule.set;
var internalStateGetterFor = InternalStateModule.getterFor;
var find = ArrayIterationModule.find;
var findIndex = ArrayIterationModule.findIndex;
var splice = uncurryThis([].splice);
var id = 0;

// fallback for uncaught frozen keys
var uncaughtFrozenStore = function (store) {
  return store.frozen || (store.frozen = new UncaughtFrozenStore());
};

var UncaughtFrozenStore = function () {
  this.entries = [];
};

var findUncaughtFrozen = function (store, key) {
  return find(store.entries, function (it) {
    return it[0] === key;
  });
};

UncaughtFrozenStore.prototype = {
  get: function (key) {
    var entry = findUncaughtFrozen(this, key);
    if (entry) return entry[1];
  },
  has: function (key) {
    return !!findUncaughtFrozen(this, key);
  },
  set: function (key, value) {
    var entry = findUncaughtFrozen(this, key);
    if (entry) entry[1] = value;
    else this.entries.push([key, value]);
  },
  'delete': function (key) {
    var index = findIndex(this.entries, function (it) {
      return it[0] === key;
    });
    if (~index) splice(this.entries, index, 1);
    return !!~index;
  }
};

module.exports = {
  getConstructor: function (wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER) {
    var Constructor = wrapper(function (that, iterable) {
      anInstance(that, Prototype);
      setInternalState(that, {
        type: CONSTRUCTOR_NAME,
        id: id++,
        frozen: undefined
      });
      if (iterable != undefined) iterate(iterable, that[ADDER], { that: that, AS_ENTRIES: IS_MAP });
    });

    var Prototype = Constructor.prototype;

    var getInternalState = internalStateGetterFor(CONSTRUCTOR_NAME);

    var define = function (that, key, value) {
      var state = getInternalState(that);
      var data = getWeakData(anObject(key), true);
      if (data === true) uncaughtFrozenStore(state).set(key, value);
      else data[state.id] = value;
      return that;
    };

    redefineAll(Prototype, {
      // `{ WeakMap, WeakSet }.prototype.delete(key)` methods
      // https://tc39.es/ecma262/#sec-weakmap.prototype.delete
      // https://tc39.es/ecma262/#sec-weakset.prototype.delete
      'delete': function (key) {
        var state = getInternalState(this);
        if (!isObject(key)) return false;
        var data = getWeakData(key);
        if (data === true) return uncaughtFrozenStore(state)['delete'](key);
        return data && hasOwn(data, state.id) && delete data[state.id];
      },
      // `{ WeakMap, WeakSet }.prototype.has(key)` methods
      // https://tc39.es/ecma262/#sec-weakmap.prototype.has
      // https://tc39.es/ecma262/#sec-weakset.prototype.has
      has: function has(key) {
        var state = getInternalState(this);
        if (!isObject(key)) return false;
        var data = getWeakData(key);
        if (data === true) return uncaughtFrozenStore(state).has(key);
        return data && hasOwn(data, state.id);
      }
    });

    redefineAll(Prototype, IS_MAP ? {
      // `WeakMap.prototype.get(key)` method
      // https://tc39.es/ecma262/#sec-weakmap.prototype.get
      get: function get(key) {
        var state = getInternalState(this);
        if (isObject(key)) {
          var data = getWeakData(key);
          if (data === true) return uncaughtFrozenStore(state).get(key);
          return data ? data[state.id] : undefined;
        }
      },
      // `WeakMap.prototype.set(key, value)` method
      // https://tc39.es/ecma262/#sec-weakmap.prototype.set
      set: function set(key, value) {
        return define(this, key, value);
      }
    } : {
      // `WeakSet.prototype.add(value)` method
      // https://tc39.es/ecma262/#sec-weakset.prototype.add
      add: function add(value) {
        return define(this, value, true);
      }
    });

    return Constructor;
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/collection.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/collection.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var isForced = __webpack_require__(/*! ../internals/is-forced */ "./node_modules/core-js/internals/is-forced.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var InternalMetadataModule = __webpack_require__(/*! ../internals/internal-metadata */ "./node_modules/core-js/internals/internal-metadata.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var checkCorrectnessOfIteration = __webpack_require__(/*! ../internals/check-correctness-of-iteration */ "./node_modules/core-js/internals/check-correctness-of-iteration.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");
var inheritIfRequired = __webpack_require__(/*! ../internals/inherit-if-required */ "./node_modules/core-js/internals/inherit-if-required.js");

module.exports = function (CONSTRUCTOR_NAME, wrapper, common) {
  var IS_MAP = CONSTRUCTOR_NAME.indexOf('Map') !== -1;
  var IS_WEAK = CONSTRUCTOR_NAME.indexOf('Weak') !== -1;
  var ADDER = IS_MAP ? 'set' : 'add';
  var NativeConstructor = global[CONSTRUCTOR_NAME];
  var NativePrototype = NativeConstructor && NativeConstructor.prototype;
  var Constructor = NativeConstructor;
  var exported = {};

  var fixMethod = function (KEY) {
    var uncurriedNativeMethod = uncurryThis(NativePrototype[KEY]);
    redefine(NativePrototype, KEY,
      KEY == 'add' ? function add(value) {
        uncurriedNativeMethod(this, value === 0 ? 0 : value);
        return this;
      } : KEY == 'delete' ? function (key) {
        return IS_WEAK && !isObject(key) ? false : uncurriedNativeMethod(this, key === 0 ? 0 : key);
      } : KEY == 'get' ? function get(key) {
        return IS_WEAK && !isObject(key) ? undefined : uncurriedNativeMethod(this, key === 0 ? 0 : key);
      } : KEY == 'has' ? function has(key) {
        return IS_WEAK && !isObject(key) ? false : uncurriedNativeMethod(this, key === 0 ? 0 : key);
      } : function set(key, value) {
        uncurriedNativeMethod(this, key === 0 ? 0 : key, value);
        return this;
      }
    );
  };

  var REPLACE = isForced(
    CONSTRUCTOR_NAME,
    !isCallable(NativeConstructor) || !(IS_WEAK || NativePrototype.forEach && !fails(function () {
      new NativeConstructor().entries().next();
    }))
  );

  if (REPLACE) {
    // create collection constructor
    Constructor = common.getConstructor(wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER);
    InternalMetadataModule.enable();
  } else if (isForced(CONSTRUCTOR_NAME, true)) {
    var instance = new Constructor();
    // early implementations not supports chaining
    var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;
    // V8 ~ Chromium 40- weak-collections throws on primitives, but should return false
    var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });
    // most early implementations doesn't supports iterables, most modern - not close it correctly
    // eslint-disable-next-line no-new -- required for testing
    var ACCEPT_ITERABLES = checkCorrectnessOfIteration(function (iterable) { new NativeConstructor(iterable); });
    // for early implementations -0 and +0 not the same
    var BUGGY_ZERO = !IS_WEAK && fails(function () {
      // V8 ~ Chromium 42- fails only with 5+ elements
      var $instance = new NativeConstructor();
      var index = 5;
      while (index--) $instance[ADDER](index, index);
      return !$instance.has(-0);
    });

    if (!ACCEPT_ITERABLES) {
      Constructor = wrapper(function (dummy, iterable) {
        anInstance(dummy, NativePrototype);
        var that = inheritIfRequired(new NativeConstructor(), dummy, Constructor);
        if (iterable != undefined) iterate(iterable, that[ADDER], { that: that, AS_ENTRIES: IS_MAP });
        return that;
      });
      Constructor.prototype = NativePrototype;
      NativePrototype.constructor = Constructor;
    }

    if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {
      fixMethod('delete');
      fixMethod('has');
      IS_MAP && fixMethod('get');
    }

    if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);

    // weak collections should not contains .clear method
    if (IS_WEAK && NativePrototype.clear) delete NativePrototype.clear;
  }

  exported[CONSTRUCTOR_NAME] = Constructor;
  $({ global: true, forced: Constructor != NativeConstructor }, exported);

  setToStringTag(Constructor, CONSTRUCTOR_NAME);

  if (!IS_WEAK) common.setStrong(Constructor, CONSTRUCTOR_NAME, IS_MAP);

  return Constructor;
};


/***/ }),

/***/ "./node_modules/core-js/internals/composite-key.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/composite-key.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`
__webpack_require__(/*! ../modules/es.map */ "./node_modules/core-js/modules/es.map.js");
__webpack_require__(/*! ../modules/es.weak-map */ "./node_modules/core-js/modules/es.weak-map.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");

var Object = global.Object;
var TypeError = global.TypeError;
var Map = getBuiltIn('Map');
var WeakMap = getBuiltIn('WeakMap');

var Node = function () {
  // keys
  this.object = null;
  this.symbol = null;
  // child nodes
  this.primitives = null;
  this.objectsByIndex = create(null);
};

Node.prototype.get = function (key, initializer) {
  return this[key] || (this[key] = initializer());
};

Node.prototype.next = function (i, it, IS_OBJECT) {
  var store = IS_OBJECT
    ? this.objectsByIndex[i] || (this.objectsByIndex[i] = new WeakMap())
    : this.primitives || (this.primitives = new Map());
  var entry = store.get(it);
  if (!entry) store.set(it, entry = new Node());
  return entry;
};

var root = new Node();

module.exports = function () {
  var active = root;
  var length = arguments.length;
  var i, it;
  // for prevent leaking, start from objects
  for (i = 0; i < length; i++) {
    if (isObject(it = arguments[i])) active = active.next(i, it, true);
  }
  if (this === Object && active === root) throw TypeError('Composite keys must contain a non-primitive component');
  for (i = 0; i < length; i++) {
    if (!isObject(it = arguments[i])) active = active.next(i, it, false);
  } return active;
};


/***/ }),

/***/ "./node_modules/core-js/internals/copy-constructor-properties.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/internals/copy-constructor-properties.js ***!
  \***********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var ownKeys = __webpack_require__(/*! ../internals/own-keys */ "./node_modules/core-js/internals/own-keys.js");
var getOwnPropertyDescriptorModule = __webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");

module.exports = function (target, source, exceptions) {
  var keys = ownKeys(source);
  var defineProperty = definePropertyModule.f;
  var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    if (!hasOwn(target, key) && !(exceptions && hasOwn(exceptions, key))) {
      defineProperty(target, key, getOwnPropertyDescriptor(source, key));
    }
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/correct-is-regexp-logic.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/internals/correct-is-regexp-logic.js ***!
  \*******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var MATCH = wellKnownSymbol('match');

module.exports = function (METHOD_NAME) {
  var regexp = /./;
  try {
    '/./'[METHOD_NAME](regexp);
  } catch (error1) {
    try {
      regexp[MATCH] = false;
      return '/./'[METHOD_NAME](regexp);
    } catch (error2) { /* empty */ }
  } return false;
};


/***/ }),

/***/ "./node_modules/core-js/internals/correct-prototype-getter.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/correct-prototype-getter.js ***!
  \********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

module.exports = !fails(function () {
  function F() { /* empty */ }
  F.prototype.constructor = null;
  // eslint-disable-next-line es/no-object-getprototypeof -- required for testing
  return Object.getPrototypeOf(new F()) !== F.prototype;
});


/***/ }),

/***/ "./node_modules/core-js/internals/create-html.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/create-html.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");

var quot = /"/g;
var replace = uncurryThis(''.replace);

// `CreateHTML` abstract operation
// https://tc39.es/ecma262/#sec-createhtml
module.exports = function (string, tag, attribute, value) {
  var S = toString(requireObjectCoercible(string));
  var p1 = '<' + tag;
  if (attribute !== '') p1 += ' ' + attribute + '="' + replace(toString(value), quot, '&quot;') + '"';
  return p1 + '>' + S + '</' + tag + '>';
};


/***/ }),

/***/ "./node_modules/core-js/internals/create-iterator-constructor.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/internals/create-iterator-constructor.js ***!
  \***********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var IteratorPrototype = (__webpack_require__(/*! ../internals/iterators-core */ "./node_modules/core-js/internals/iterators-core.js").IteratorPrototype);
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");
var Iterators = __webpack_require__(/*! ../internals/iterators */ "./node_modules/core-js/internals/iterators.js");

var returnThis = function () { return this; };

module.exports = function (IteratorConstructor, NAME, next, ENUMERABLE_NEXT) {
  var TO_STRING_TAG = NAME + ' Iterator';
  IteratorConstructor.prototype = create(IteratorPrototype, { next: createPropertyDescriptor(+!ENUMERABLE_NEXT, next) });
  setToStringTag(IteratorConstructor, TO_STRING_TAG, false, true);
  Iterators[TO_STRING_TAG] = returnThis;
  return IteratorConstructor;
};


/***/ }),

/***/ "./node_modules/core-js/internals/create-non-enumerable-property.js":
/*!**************************************************************************!*\
  !*** ./node_modules/core-js/internals/create-non-enumerable-property.js ***!
  \**************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");

module.exports = DESCRIPTORS ? function (object, key, value) {
  return definePropertyModule.f(object, key, createPropertyDescriptor(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};


/***/ }),

/***/ "./node_modules/core-js/internals/create-property-descriptor.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/internals/create-property-descriptor.js ***!
  \**********************************************************************/
/***/ ((module) => {

module.exports = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};


/***/ }),

/***/ "./node_modules/core-js/internals/create-property.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/create-property.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var toPropertyKey = __webpack_require__(/*! ../internals/to-property-key */ "./node_modules/core-js/internals/to-property-key.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");

module.exports = function (object, key, value) {
  var propertyKey = toPropertyKey(key);
  if (propertyKey in object) definePropertyModule.f(object, propertyKey, createPropertyDescriptor(0, value));
  else object[propertyKey] = value;
};


/***/ }),

/***/ "./node_modules/core-js/internals/date-to-iso-string.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/date-to-iso-string.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var padStart = (__webpack_require__(/*! ../internals/string-pad */ "./node_modules/core-js/internals/string-pad.js").start);

var RangeError = global.RangeError;
var abs = Math.abs;
var DatePrototype = Date.prototype;
var n$DateToISOString = DatePrototype.toISOString;
var getTime = uncurryThis(DatePrototype.getTime);
var getUTCDate = uncurryThis(DatePrototype.getUTCDate);
var getUTCFullYear = uncurryThis(DatePrototype.getUTCFullYear);
var getUTCHours = uncurryThis(DatePrototype.getUTCHours);
var getUTCMilliseconds = uncurryThis(DatePrototype.getUTCMilliseconds);
var getUTCMinutes = uncurryThis(DatePrototype.getUTCMinutes);
var getUTCMonth = uncurryThis(DatePrototype.getUTCMonth);
var getUTCSeconds = uncurryThis(DatePrototype.getUTCSeconds);

// `Date.prototype.toISOString` method implementation
// https://tc39.es/ecma262/#sec-date.prototype.toisostring
// PhantomJS / old WebKit fails here:
module.exports = (fails(function () {
  return n$DateToISOString.call(new Date(-5e13 - 1)) != '0385-07-25T07:06:39.999Z';
}) || !fails(function () {
  n$DateToISOString.call(new Date(NaN));
})) ? function toISOString() {
  if (!isFinite(getTime(this))) throw RangeError('Invalid time value');
  var date = this;
  var year = getUTCFullYear(date);
  var milliseconds = getUTCMilliseconds(date);
  var sign = year < 0 ? '-' : year > 9999 ? '+' : '';
  return sign + padStart(abs(year), sign ? 6 : 4, 0) +
    '-' + padStart(getUTCMonth(date) + 1, 2, 0) +
    '-' + padStart(getUTCDate(date), 2, 0) +
    'T' + padStart(getUTCHours(date), 2, 0) +
    ':' + padStart(getUTCMinutes(date), 2, 0) +
    ':' + padStart(getUTCSeconds(date), 2, 0) +
    '.' + padStart(milliseconds, 3, 0) +
    'Z';
} : n$DateToISOString;


/***/ }),

/***/ "./node_modules/core-js/internals/date-to-primitive.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/date-to-primitive.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var ordinaryToPrimitive = __webpack_require__(/*! ../internals/ordinary-to-primitive */ "./node_modules/core-js/internals/ordinary-to-primitive.js");

var TypeError = global.TypeError;

// `Date.prototype[@@toPrimitive](hint)` method implementation
// https://tc39.es/ecma262/#sec-date.prototype-@@toprimitive
module.exports = function (hint) {
  anObject(this);
  if (hint === 'string' || hint === 'default') hint = 'string';
  else if (hint !== 'number') throw TypeError('Incorrect hint');
  return ordinaryToPrimitive(this, hint);
};


/***/ }),

/***/ "./node_modules/core-js/internals/define-iterator.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/define-iterator.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");
var FunctionName = __webpack_require__(/*! ../internals/function-name */ "./node_modules/core-js/internals/function-name.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var createIteratorConstructor = __webpack_require__(/*! ../internals/create-iterator-constructor */ "./node_modules/core-js/internals/create-iterator-constructor.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var setPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var Iterators = __webpack_require__(/*! ../internals/iterators */ "./node_modules/core-js/internals/iterators.js");
var IteratorsCore = __webpack_require__(/*! ../internals/iterators-core */ "./node_modules/core-js/internals/iterators-core.js");

var PROPER_FUNCTION_NAME = FunctionName.PROPER;
var CONFIGURABLE_FUNCTION_NAME = FunctionName.CONFIGURABLE;
var IteratorPrototype = IteratorsCore.IteratorPrototype;
var BUGGY_SAFARI_ITERATORS = IteratorsCore.BUGGY_SAFARI_ITERATORS;
var ITERATOR = wellKnownSymbol('iterator');
var KEYS = 'keys';
var VALUES = 'values';
var ENTRIES = 'entries';

var returnThis = function () { return this; };

module.exports = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {
  createIteratorConstructor(IteratorConstructor, NAME, next);

  var getIterationMethod = function (KIND) {
    if (KIND === DEFAULT && defaultIterator) return defaultIterator;
    if (!BUGGY_SAFARI_ITERATORS && KIND in IterablePrototype) return IterablePrototype[KIND];
    switch (KIND) {
      case KEYS: return function keys() { return new IteratorConstructor(this, KIND); };
      case VALUES: return function values() { return new IteratorConstructor(this, KIND); };
      case ENTRIES: return function entries() { return new IteratorConstructor(this, KIND); };
    } return function () { return new IteratorConstructor(this); };
  };

  var TO_STRING_TAG = NAME + ' Iterator';
  var INCORRECT_VALUES_NAME = false;
  var IterablePrototype = Iterable.prototype;
  var nativeIterator = IterablePrototype[ITERATOR]
    || IterablePrototype['@@iterator']
    || DEFAULT && IterablePrototype[DEFAULT];
  var defaultIterator = !BUGGY_SAFARI_ITERATORS && nativeIterator || getIterationMethod(DEFAULT);
  var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;
  var CurrentIteratorPrototype, methods, KEY;

  // fix native
  if (anyNativeIterator) {
    CurrentIteratorPrototype = getPrototypeOf(anyNativeIterator.call(new Iterable()));
    if (CurrentIteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {
      if (!IS_PURE && getPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype) {
        if (setPrototypeOf) {
          setPrototypeOf(CurrentIteratorPrototype, IteratorPrototype);
        } else if (!isCallable(CurrentIteratorPrototype[ITERATOR])) {
          redefine(CurrentIteratorPrototype, ITERATOR, returnThis);
        }
      }
      // Set @@toStringTag to native iterators
      setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true, true);
      if (IS_PURE) Iterators[TO_STRING_TAG] = returnThis;
    }
  }

  // fix Array.prototype.{ values, @@iterator }.name in V8 / FF
  if (PROPER_FUNCTION_NAME && DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {
    if (!IS_PURE && CONFIGURABLE_FUNCTION_NAME) {
      createNonEnumerableProperty(IterablePrototype, 'name', VALUES);
    } else {
      INCORRECT_VALUES_NAME = true;
      defaultIterator = function values() { return call(nativeIterator, this); };
    }
  }

  // export additional methods
  if (DEFAULT) {
    methods = {
      values: getIterationMethod(VALUES),
      keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),
      entries: getIterationMethod(ENTRIES)
    };
    if (FORCED) for (KEY in methods) {
      if (BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {
        redefine(IterablePrototype, KEY, methods[KEY]);
      }
    } else $({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME }, methods);
  }

  // define iterator
  if ((!IS_PURE || FORCED) && IterablePrototype[ITERATOR] !== defaultIterator) {
    redefine(IterablePrototype, ITERATOR, defaultIterator, { name: DEFAULT });
  }
  Iterators[NAME] = defaultIterator;

  return methods;
};


/***/ }),

/***/ "./node_modules/core-js/internals/define-well-known-symbol.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/define-well-known-symbol.js ***!
  \********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var path = __webpack_require__(/*! ../internals/path */ "./node_modules/core-js/internals/path.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var wrappedWellKnownSymbolModule = __webpack_require__(/*! ../internals/well-known-symbol-wrapped */ "./node_modules/core-js/internals/well-known-symbol-wrapped.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);

module.exports = function (NAME) {
  var Symbol = path.Symbol || (path.Symbol = {});
  if (!hasOwn(Symbol, NAME)) defineProperty(Symbol, NAME, {
    value: wrappedWellKnownSymbolModule.f(NAME)
  });
};


/***/ }),

/***/ "./node_modules/core-js/internals/descriptors.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/descriptors.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

// Detect IE8's incomplete defineProperty implementation
module.exports = !fails(function () {
  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
  return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;
});


/***/ }),

/***/ "./node_modules/core-js/internals/document-create-element.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/internals/document-create-element.js ***!
  \*******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");

var document = global.document;
// typeof document.createElement is 'object' in old IE
var EXISTS = isObject(document) && isObject(document.createElement);

module.exports = function (it) {
  return EXISTS ? document.createElement(it) : {};
};


/***/ }),

/***/ "./node_modules/core-js/internals/dom-exception-constants.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/internals/dom-exception-constants.js ***!
  \*******************************************************************/
/***/ ((module) => {

module.exports = {
  IndexSizeError: { s: 'INDEX_SIZE_ERR', c: 1, m: 1 },
  DOMStringSizeError: { s: 'DOMSTRING_SIZE_ERR', c: 2, m: 0 },
  HierarchyRequestError: { s: 'HIERARCHY_REQUEST_ERR', c: 3, m: 1 },
  WrongDocumentError: { s: 'WRONG_DOCUMENT_ERR', c: 4, m: 1 },
  InvalidCharacterError: { s: 'INVALID_CHARACTER_ERR', c: 5, m: 1 },
  NoDataAllowedError: { s: 'NO_DATA_ALLOWED_ERR', c: 6, m: 0 },
  NoModificationAllowedError: { s: 'NO_MODIFICATION_ALLOWED_ERR', c: 7, m: 1 },
  NotFoundError: { s: 'NOT_FOUND_ERR', c: 8, m: 1 },
  NotSupportedError: { s: 'NOT_SUPPORTED_ERR', c: 9, m: 1 },
  InUseAttributeError: { s: 'INUSE_ATTRIBUTE_ERR', c: 10, m: 1 },
  InvalidStateError: { s: 'INVALID_STATE_ERR', c: 11, m: 1 },
  SyntaxError: { s: 'SYNTAX_ERR', c: 12, m: 1 },
  InvalidModificationError: { s: 'INVALID_MODIFICATION_ERR', c: 13, m: 1 },
  NamespaceError: { s: 'NAMESPACE_ERR', c: 14, m: 1 },
  InvalidAccessError: { s: 'INVALID_ACCESS_ERR', c: 15, m: 1 },
  ValidationError: { s: 'VALIDATION_ERR', c: 16, m: 0 },
  TypeMismatchError: { s: 'TYPE_MISMATCH_ERR', c: 17, m: 1 },
  SecurityError: { s: 'SECURITY_ERR', c: 18, m: 1 },
  NetworkError: { s: 'NETWORK_ERR', c: 19, m: 1 },
  AbortError: { s: 'ABORT_ERR', c: 20, m: 1 },
  URLMismatchError: { s: 'URL_MISMATCH_ERR', c: 21, m: 1 },
  QuotaExceededError: { s: 'QUOTA_EXCEEDED_ERR', c: 22, m: 1 },
  TimeoutError: { s: 'TIMEOUT_ERR', c: 23, m: 1 },
  InvalidNodeTypeError: { s: 'INVALID_NODE_TYPE_ERR', c: 24, m: 1 },
  DataCloneError: { s: 'DATA_CLONE_ERR', c: 25, m: 1 }
};


/***/ }),

/***/ "./node_modules/core-js/internals/dom-iterables.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/dom-iterables.js ***!
  \*********************************************************/
/***/ ((module) => {

// iterable DOM collections
// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
module.exports = {
  CSSRuleList: 0,
  CSSStyleDeclaration: 0,
  CSSValueList: 0,
  ClientRectList: 0,
  DOMRectList: 0,
  DOMStringList: 0,
  DOMTokenList: 1,
  DataTransferItemList: 0,
  FileList: 0,
  HTMLAllCollection: 0,
  HTMLCollection: 0,
  HTMLFormElement: 0,
  HTMLSelectElement: 0,
  MediaList: 0,
  MimeTypeArray: 0,
  NamedNodeMap: 0,
  NodeList: 1,
  PaintRequestList: 0,
  Plugin: 0,
  PluginArray: 0,
  SVGLengthList: 0,
  SVGNumberList: 0,
  SVGPathSegList: 0,
  SVGPointList: 0,
  SVGStringList: 0,
  SVGTransformList: 0,
  SourceBufferList: 0,
  StyleSheetList: 0,
  TextTrackCueList: 0,
  TextTrackList: 0,
  TouchList: 0
};


/***/ }),

/***/ "./node_modules/core-js/internals/dom-token-list-prototype.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/dom-token-list-prototype.js ***!
  \********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

// in old WebKit versions, `element.classList` is not an instance of global `DOMTokenList`
var documentCreateElement = __webpack_require__(/*! ../internals/document-create-element */ "./node_modules/core-js/internals/document-create-element.js");

var classList = documentCreateElement('span').classList;
var DOMTokenListPrototype = classList && classList.constructor && classList.constructor.prototype;

module.exports = DOMTokenListPrototype === Object.prototype ? undefined : DOMTokenListPrototype;


/***/ }),

/***/ "./node_modules/core-js/internals/engine-ff-version.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/engine-ff-version.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var userAgent = __webpack_require__(/*! ../internals/engine-user-agent */ "./node_modules/core-js/internals/engine-user-agent.js");

var firefox = userAgent.match(/firefox\/(\d+)/i);

module.exports = !!firefox && +firefox[1];


/***/ }),

/***/ "./node_modules/core-js/internals/engine-is-browser.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/engine-is-browser.js ***!
  \*************************************************************/
/***/ ((module) => {

module.exports = typeof window == 'object';


/***/ }),

/***/ "./node_modules/core-js/internals/engine-is-ie-or-edge.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/internals/engine-is-ie-or-edge.js ***!
  \****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var UA = __webpack_require__(/*! ../internals/engine-user-agent */ "./node_modules/core-js/internals/engine-user-agent.js");

module.exports = /MSIE|Trident/.test(UA);


/***/ }),

/***/ "./node_modules/core-js/internals/engine-is-ios-pebble.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/internals/engine-is-ios-pebble.js ***!
  \****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var userAgent = __webpack_require__(/*! ../internals/engine-user-agent */ "./node_modules/core-js/internals/engine-user-agent.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

module.exports = /ipad|iphone|ipod/i.test(userAgent) && global.Pebble !== undefined;


/***/ }),

/***/ "./node_modules/core-js/internals/engine-is-ios.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/engine-is-ios.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var userAgent = __webpack_require__(/*! ../internals/engine-user-agent */ "./node_modules/core-js/internals/engine-user-agent.js");

module.exports = /(?:ipad|iphone|ipod).*applewebkit/i.test(userAgent);


/***/ }),

/***/ "./node_modules/core-js/internals/engine-is-node.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/engine-is-node.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

module.exports = classof(global.process) == 'process';


/***/ }),

/***/ "./node_modules/core-js/internals/engine-is-webos-webkit.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/internals/engine-is-webos-webkit.js ***!
  \******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var userAgent = __webpack_require__(/*! ../internals/engine-user-agent */ "./node_modules/core-js/internals/engine-user-agent.js");

module.exports = /web0s(?!.*chrome)/i.test(userAgent);


/***/ }),

/***/ "./node_modules/core-js/internals/engine-user-agent.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/engine-user-agent.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");

module.exports = getBuiltIn('navigator', 'userAgent') || '';


/***/ }),

/***/ "./node_modules/core-js/internals/engine-v8-version.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/engine-v8-version.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var userAgent = __webpack_require__(/*! ../internals/engine-user-agent */ "./node_modules/core-js/internals/engine-user-agent.js");

var process = global.process;
var Deno = global.Deno;
var versions = process && process.versions || Deno && Deno.version;
var v8 = versions && versions.v8;
var match, version;

if (v8) {
  match = v8.split('.');
  // in old Chrome, versions of V8 isn't V8 = Chrome / 10
  // but their correct versions are not interesting for us
  version = match[0] > 0 && match[0] < 4 ? 1 : +(match[0] + match[1]);
}

// BrowserFS NodeJS `process` polyfill incorrectly set `.v8` to `0.0`
// so check `userAgent` even if `.v8` exists, but 0
if (!version && userAgent) {
  match = userAgent.match(/Edge\/(\d+)/);
  if (!match || match[1] >= 74) {
    match = userAgent.match(/Chrome\/(\d+)/);
    if (match) version = +match[1];
  }
}

module.exports = version;


/***/ }),

/***/ "./node_modules/core-js/internals/engine-webkit-version.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/internals/engine-webkit-version.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var userAgent = __webpack_require__(/*! ../internals/engine-user-agent */ "./node_modules/core-js/internals/engine-user-agent.js");

var webkit = userAgent.match(/AppleWebKit\/(\d+)\./);

module.exports = !!webkit && +webkit[1];


/***/ }),

/***/ "./node_modules/core-js/internals/entry-virtual.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/entry-virtual.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

module.exports = function (CONSTRUCTOR) {
  return global[CONSTRUCTOR].prototype;
};


/***/ }),

/***/ "./node_modules/core-js/internals/enum-bug-keys.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/enum-bug-keys.js ***!
  \*********************************************************/
/***/ ((module) => {

// IE8- don't enum bug keys
module.exports = [
  'constructor',
  'hasOwnProperty',
  'isPrototypeOf',
  'propertyIsEnumerable',
  'toLocaleString',
  'toString',
  'valueOf'
];


/***/ }),

/***/ "./node_modules/core-js/internals/error-stack-installable.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/internals/error-stack-installable.js ***!
  \*******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");

module.exports = !fails(function () {
  var error = Error('a');
  if (!('stack' in error)) return true;
  // eslint-disable-next-line es/no-object-defineproperty -- safe
  Object.defineProperty(error, 'stack', createPropertyDescriptor(1, 7));
  return error.stack !== 7;
});


/***/ }),

/***/ "./node_modules/core-js/internals/error-to-string.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/error-to-string.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var normalizeStringArgument = __webpack_require__(/*! ../internals/normalize-string-argument */ "./node_modules/core-js/internals/normalize-string-argument.js");

var nativeErrorToString = Error.prototype.toString;

var INCORRECT_TO_STRING = fails(function () {
  if (DESCRIPTORS) {
    // Chrome 32- incorrectly call accessor
    // eslint-disable-next-line es/no-object-defineproperty -- safe
    var object = create(Object.defineProperty({}, 'name', { get: function () {
      return this === object;
    } }));
    if (nativeErrorToString.call(object) !== 'true') return true;
  }
  // FF10- does not properly handle non-strings
  return nativeErrorToString.call({ message: 1, name: 2 }) !== '2: 1'
    // IE8 does not properly handle defaults
    || nativeErrorToString.call({}) !== 'Error';
});

module.exports = INCORRECT_TO_STRING ? function toString() {
  var O = anObject(this);
  var name = normalizeStringArgument(O.name, 'Error');
  var message = normalizeStringArgument(O.message);
  return !name ? message : !message ? name : name + ': ' + message;
} : nativeErrorToString;


/***/ }),

/***/ "./node_modules/core-js/internals/export.js":
/*!**************************************************!*\
  !*** ./node_modules/core-js/internals/export.js ***!
  \**************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var getOwnPropertyDescriptor = (__webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js").f);
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var setGlobal = __webpack_require__(/*! ../internals/set-global */ "./node_modules/core-js/internals/set-global.js");
var copyConstructorProperties = __webpack_require__(/*! ../internals/copy-constructor-properties */ "./node_modules/core-js/internals/copy-constructor-properties.js");
var isForced = __webpack_require__(/*! ../internals/is-forced */ "./node_modules/core-js/internals/is-forced.js");

/*
  options.target      - name of the target object
  options.global      - target is the global object
  options.stat        - export as static methods of target
  options.proto       - export as prototype methods of target
  options.real        - real prototype method for the `pure` version
  options.forced      - export even if the native feature is available
  options.bind        - bind methods to the target, required for the `pure` version
  options.wrap        - wrap constructors to preventing global pollution, required for the `pure` version
  options.unsafe      - use the simple assignment of property instead of delete + defineProperty
  options.sham        - add a flag to not completely full polyfills
  options.enumerable  - export as enumerable property
  options.noTargetGet - prevent calling a getter on target
  options.name        - the .name of the function if it does not match the key
*/
module.exports = function (options, source) {
  var TARGET = options.target;
  var GLOBAL = options.global;
  var STATIC = options.stat;
  var FORCED, target, key, targetProperty, sourceProperty, descriptor;
  if (GLOBAL) {
    target = global;
  } else if (STATIC) {
    target = global[TARGET] || setGlobal(TARGET, {});
  } else {
    target = (global[TARGET] || {}).prototype;
  }
  if (target) for (key in source) {
    sourceProperty = source[key];
    if (options.noTargetGet) {
      descriptor = getOwnPropertyDescriptor(target, key);
      targetProperty = descriptor && descriptor.value;
    } else targetProperty = target[key];
    FORCED = isForced(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);
    // contained in target
    if (!FORCED && targetProperty !== undefined) {
      if (typeof sourceProperty == typeof targetProperty) continue;
      copyConstructorProperties(sourceProperty, targetProperty);
    }
    // add a flag to not completely full polyfills
    if (options.sham || (targetProperty && targetProperty.sham)) {
      createNonEnumerableProperty(sourceProperty, 'sham', true);
    }
    // extend global
    redefine(target, key, sourceProperty, options);
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/fails.js":
/*!*************************************************!*\
  !*** ./node_modules/core-js/internals/fails.js ***!
  \*************************************************/
/***/ ((module) => {

module.exports = function (exec) {
  try {
    return !!exec();
  } catch (error) {
    return true;
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/fix-regexp-well-known-symbol-logic.js":
/*!******************************************************************************!*\
  !*** ./node_modules/core-js/internals/fix-regexp-well-known-symbol-logic.js ***!
  \******************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: Remove from `core-js@4` since it's moved to entry points
__webpack_require__(/*! ../modules/es.regexp.exec */ "./node_modules/core-js/modules/es.regexp.exec.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var regexpExec = __webpack_require__(/*! ../internals/regexp-exec */ "./node_modules/core-js/internals/regexp-exec.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");

var SPECIES = wellKnownSymbol('species');
var RegExpPrototype = RegExp.prototype;

module.exports = function (KEY, exec, FORCED, SHAM) {
  var SYMBOL = wellKnownSymbol(KEY);

  var DELEGATES_TO_SYMBOL = !fails(function () {
    // String methods call symbol-named RegEp methods
    var O = {};
    O[SYMBOL] = function () { return 7; };
    return ''[KEY](O) != 7;
  });

  var DELEGATES_TO_EXEC = DELEGATES_TO_SYMBOL && !fails(function () {
    // Symbol-named RegExp methods call .exec
    var execCalled = false;
    var re = /a/;

    if (KEY === 'split') {
      // We can't use real regex here since it causes deoptimization
      // and serious performance degradation in V8
      // https://github.com/zloirock/core-js/issues/306
      re = {};
      // RegExp[@@split] doesn't call the regex's exec method, but first creates
      // a new one. We need to return the patched regex when creating the new one.
      re.constructor = {};
      re.constructor[SPECIES] = function () { return re; };
      re.flags = '';
      re[SYMBOL] = /./[SYMBOL];
    }

    re.exec = function () { execCalled = true; return null; };

    re[SYMBOL]('');
    return !execCalled;
  });

  if (
    !DELEGATES_TO_SYMBOL ||
    !DELEGATES_TO_EXEC ||
    FORCED
  ) {
    var uncurriedNativeRegExpMethod = uncurryThis(/./[SYMBOL]);
    var methods = exec(SYMBOL, ''[KEY], function (nativeMethod, regexp, str, arg2, forceStringMethod) {
      var uncurriedNativeMethod = uncurryThis(nativeMethod);
      var $exec = regexp.exec;
      if ($exec === regexpExec || $exec === RegExpPrototype.exec) {
        if (DELEGATES_TO_SYMBOL && !forceStringMethod) {
          // The native String method already delegates to @@method (this
          // polyfilled function), leasing to infinite recursion.
          // We avoid it by directly calling the native @@method method.
          return { done: true, value: uncurriedNativeRegExpMethod(regexp, str, arg2) };
        }
        return { done: true, value: uncurriedNativeMethod(str, regexp, arg2) };
      }
      return { done: false };
    });

    redefine(String.prototype, KEY, methods[0]);
    redefine(RegExpPrototype, SYMBOL, methods[1]);
  }

  if (SHAM) createNonEnumerableProperty(RegExpPrototype[SYMBOL], 'sham', true);
};


/***/ }),

/***/ "./node_modules/core-js/internals/flatten-into-array.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/flatten-into-array.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var isArray = __webpack_require__(/*! ../internals/is-array */ "./node_modules/core-js/internals/is-array.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");

var TypeError = global.TypeError;

// `FlattenIntoArray` abstract operation
// https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray
var flattenIntoArray = function (target, original, source, sourceLen, start, depth, mapper, thisArg) {
  var targetIndex = start;
  var sourceIndex = 0;
  var mapFn = mapper ? bind(mapper, thisArg) : false;
  var element, elementLen;

  while (sourceIndex < sourceLen) {
    if (sourceIndex in source) {
      element = mapFn ? mapFn(source[sourceIndex], sourceIndex, original) : source[sourceIndex];

      if (depth > 0 && isArray(element)) {
        elementLen = lengthOfArrayLike(element);
        targetIndex = flattenIntoArray(target, original, element, elementLen, targetIndex, depth - 1) - 1;
      } else {
        if (targetIndex >= 0x1FFFFFFFFFFFFF) throw TypeError('Exceed the acceptable array length');
        target[targetIndex] = element;
      }

      targetIndex++;
    }
    sourceIndex++;
  }
  return targetIndex;
};

module.exports = flattenIntoArray;


/***/ }),

/***/ "./node_modules/core-js/internals/freezing.js":
/*!****************************************************!*\
  !*** ./node_modules/core-js/internals/freezing.js ***!
  \****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

module.exports = !fails(function () {
  // eslint-disable-next-line es/no-object-isextensible, es/no-object-preventextensions -- required for testing
  return Object.isExtensible(Object.preventExtensions({}));
});


/***/ }),

/***/ "./node_modules/core-js/internals/function-apply.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/function-apply.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var NATIVE_BIND = __webpack_require__(/*! ../internals/function-bind-native */ "./node_modules/core-js/internals/function-bind-native.js");

var FunctionPrototype = Function.prototype;
var apply = FunctionPrototype.apply;
var call = FunctionPrototype.call;

// eslint-disable-next-line es/no-reflect -- safe
module.exports = typeof Reflect == 'object' && Reflect.apply || (NATIVE_BIND ? call.bind(apply) : function () {
  return call.apply(apply, arguments);
});


/***/ }),

/***/ "./node_modules/core-js/internals/function-bind-context.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/internals/function-bind-context.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var NATIVE_BIND = __webpack_require__(/*! ../internals/function-bind-native */ "./node_modules/core-js/internals/function-bind-native.js");

var bind = uncurryThis(uncurryThis.bind);

// optional / simple context binding
module.exports = function (fn, that) {
  aCallable(fn);
  return that === undefined ? fn : NATIVE_BIND ? bind(fn, that) : function (/* ...args */) {
    return fn.apply(that, arguments);
  };
};


/***/ }),

/***/ "./node_modules/core-js/internals/function-bind-native.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/internals/function-bind-native.js ***!
  \****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

module.exports = !fails(function () {
  var test = (function () { /* empty */ }).bind();
  // eslint-disable-next-line no-prototype-builtins -- safe
  return typeof test != 'function' || test.hasOwnProperty('prototype');
});


/***/ }),

/***/ "./node_modules/core-js/internals/function-bind.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/function-bind.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");
var NATIVE_BIND = __webpack_require__(/*! ../internals/function-bind-native */ "./node_modules/core-js/internals/function-bind-native.js");

var Function = global.Function;
var concat = uncurryThis([].concat);
var join = uncurryThis([].join);
var factories = {};

var construct = function (C, argsLength, args) {
  if (!hasOwn(factories, argsLength)) {
    for (var list = [], i = 0; i < argsLength; i++) list[i] = 'a[' + i + ']';
    factories[argsLength] = Function('C,a', 'return new C(' + join(list, ',') + ')');
  } return factories[argsLength](C, args);
};

// `Function.prototype.bind` method implementation
// https://tc39.es/ecma262/#sec-function.prototype.bind
module.exports = NATIVE_BIND ? Function.bind : function bind(that /* , ...args */) {
  var F = aCallable(this);
  var Prototype = F.prototype;
  var partArgs = arraySlice(arguments, 1);
  var boundFunction = function bound(/* args... */) {
    var args = concat(partArgs, arraySlice(arguments));
    return this instanceof boundFunction ? construct(F, args.length, args) : F.apply(that, args);
  };
  if (isObject(Prototype)) boundFunction.prototype = Prototype;
  return boundFunction;
};


/***/ }),

/***/ "./node_modules/core-js/internals/function-call.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/function-call.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var NATIVE_BIND = __webpack_require__(/*! ../internals/function-bind-native */ "./node_modules/core-js/internals/function-bind-native.js");

var call = Function.prototype.call;

module.exports = NATIVE_BIND ? call.bind(call) : function () {
  return call.apply(call, arguments);
};


/***/ }),

/***/ "./node_modules/core-js/internals/function-name.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/function-name.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");

var FunctionPrototype = Function.prototype;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getDescriptor = DESCRIPTORS && Object.getOwnPropertyDescriptor;

var EXISTS = hasOwn(FunctionPrototype, 'name');
// additional protection from minified / mangled / dropped function names
var PROPER = EXISTS && (function something() { /* empty */ }).name === 'something';
var CONFIGURABLE = EXISTS && (!DESCRIPTORS || (DESCRIPTORS && getDescriptor(FunctionPrototype, 'name').configurable));

module.exports = {
  EXISTS: EXISTS,
  PROPER: PROPER,
  CONFIGURABLE: CONFIGURABLE
};


/***/ }),

/***/ "./node_modules/core-js/internals/function-uncurry-this.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/internals/function-uncurry-this.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var NATIVE_BIND = __webpack_require__(/*! ../internals/function-bind-native */ "./node_modules/core-js/internals/function-bind-native.js");

var FunctionPrototype = Function.prototype;
var bind = FunctionPrototype.bind;
var call = FunctionPrototype.call;
var uncurryThis = NATIVE_BIND && bind.bind(call, call);

module.exports = NATIVE_BIND ? function (fn) {
  return fn && uncurryThis(fn);
} : function (fn) {
  return fn && function () {
    return call.apply(fn, arguments);
  };
};


/***/ }),

/***/ "./node_modules/core-js/internals/get-async-iterator.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/get-async-iterator.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var AsyncFromSyncIterator = __webpack_require__(/*! ../internals/async-from-sync-iterator */ "./node_modules/core-js/internals/async-from-sync-iterator.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var ASYNC_ITERATOR = wellKnownSymbol('asyncIterator');

module.exports = function (it, usingIterator) {
  var method = arguments.length < 2 ? getMethod(it, ASYNC_ITERATOR) : usingIterator;
  return method ? anObject(call(method, it)) : new AsyncFromSyncIterator(getIterator(it));
};


/***/ }),

/***/ "./node_modules/core-js/internals/get-built-in.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/internals/get-built-in.js ***!
  \********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");

var aFunction = function (argument) {
  return isCallable(argument) ? argument : undefined;
};

module.exports = function (namespace, method) {
  return arguments.length < 2 ? aFunction(global[namespace]) : global[namespace] && global[namespace][method];
};


/***/ }),

/***/ "./node_modules/core-js/internals/get-iterator-method.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/internals/get-iterator-method.js ***!
  \***************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var classof = __webpack_require__(/*! ../internals/classof */ "./node_modules/core-js/internals/classof.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var Iterators = __webpack_require__(/*! ../internals/iterators */ "./node_modules/core-js/internals/iterators.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var ITERATOR = wellKnownSymbol('iterator');

module.exports = function (it) {
  if (it != undefined) return getMethod(it, ITERATOR)
    || getMethod(it, '@@iterator')
    || Iterators[classof(it)];
};


/***/ }),

/***/ "./node_modules/core-js/internals/get-iterator.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/internals/get-iterator.js ***!
  \********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var tryToString = __webpack_require__(/*! ../internals/try-to-string */ "./node_modules/core-js/internals/try-to-string.js");
var getIteratorMethod = __webpack_require__(/*! ../internals/get-iterator-method */ "./node_modules/core-js/internals/get-iterator-method.js");

var TypeError = global.TypeError;

module.exports = function (argument, usingIterator) {
  var iteratorMethod = arguments.length < 2 ? getIteratorMethod(argument) : usingIterator;
  if (aCallable(iteratorMethod)) return anObject(call(iteratorMethod, argument));
  throw TypeError(tryToString(argument) + ' is not iterable');
};


/***/ }),

/***/ "./node_modules/core-js/internals/get-map-iterator.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/get-map-iterator.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");

module.exports = function (it) {
  // eslint-disable-next-line es/no-map -- safe
  return call(Map.prototype.entries, it);
};


/***/ }),

/***/ "./node_modules/core-js/internals/get-method.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/get-method.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");

// `GetMethod` abstract operation
// https://tc39.es/ecma262/#sec-getmethod
module.exports = function (V, P) {
  var func = V[P];
  return func == null ? undefined : aCallable(func);
};


/***/ }),

/***/ "./node_modules/core-js/internals/get-set-iterator.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/get-set-iterator.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");

module.exports = function (it) {
  // eslint-disable-next-line es/no-set -- safe
  return call(Set.prototype.values, it);
};


/***/ }),

/***/ "./node_modules/core-js/internals/get-substitution.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/get-substitution.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");

var floor = Math.floor;
var charAt = uncurryThis(''.charAt);
var replace = uncurryThis(''.replace);
var stringSlice = uncurryThis(''.slice);
var SUBSTITUTION_SYMBOLS = /\$([$&'`]|\d{1,2}|<[^>]*>)/g;
var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&'`]|\d{1,2})/g;

// `GetSubstitution` abstract operation
// https://tc39.es/ecma262/#sec-getsubstitution
module.exports = function (matched, str, position, captures, namedCaptures, replacement) {
  var tailPos = position + matched.length;
  var m = captures.length;
  var symbols = SUBSTITUTION_SYMBOLS_NO_NAMED;
  if (namedCaptures !== undefined) {
    namedCaptures = toObject(namedCaptures);
    symbols = SUBSTITUTION_SYMBOLS;
  }
  return replace(replacement, symbols, function (match, ch) {
    var capture;
    switch (charAt(ch, 0)) {
      case '$': return '$';
      case '&': return matched;
      case '`': return stringSlice(str, 0, position);
      case "'": return stringSlice(str, tailPos);
      case '<':
        capture = namedCaptures[stringSlice(ch, 1, -1)];
        break;
      default: // \d\d?
        var n = +ch;
        if (n === 0) return match;
        if (n > m) {
          var f = floor(n / 10);
          if (f === 0) return match;
          if (f <= m) return captures[f - 1] === undefined ? charAt(ch, 1) : captures[f - 1] + charAt(ch, 1);
          return match;
        }
        capture = captures[n - 1];
    }
    return capture === undefined ? '' : capture;
  });
};


/***/ }),

/***/ "./node_modules/core-js/internals/global.js":
/*!**************************************************!*\
  !*** ./node_modules/core-js/internals/global.js ***!
  \**************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var check = function (it) {
  return it && it.Math == Math && it;
};

// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
module.exports =
  // eslint-disable-next-line es/no-global-this -- safe
  check(typeof globalThis == 'object' && globalThis) ||
  check(typeof window == 'object' && window) ||
  // eslint-disable-next-line no-restricted-globals -- safe
  check(typeof self == 'object' && self) ||
  check(typeof __webpack_require__.g == 'object' && __webpack_require__.g) ||
  // eslint-disable-next-line no-new-func -- fallback
  (function () { return this; })() || Function('return this')();


/***/ }),

/***/ "./node_modules/core-js/internals/has-own-property.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/has-own-property.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");

var hasOwnProperty = uncurryThis({}.hasOwnProperty);

// `HasOwnProperty` abstract operation
// https://tc39.es/ecma262/#sec-hasownproperty
module.exports = Object.hasOwn || function hasOwn(it, key) {
  return hasOwnProperty(toObject(it), key);
};


/***/ }),

/***/ "./node_modules/core-js/internals/hidden-keys.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/hidden-keys.js ***!
  \*******************************************************/
/***/ ((module) => {

module.exports = {};


/***/ }),

/***/ "./node_modules/core-js/internals/host-report-errors.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/host-report-errors.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

module.exports = function (a, b) {
  var console = global.console;
  if (console && console.error) {
    arguments.length == 1 ? console.error(a) : console.error(a, b);
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/html.js":
/*!************************************************!*\
  !*** ./node_modules/core-js/internals/html.js ***!
  \************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");

module.exports = getBuiltIn('document', 'documentElement');


/***/ }),

/***/ "./node_modules/core-js/internals/ie8-dom-define.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/ie8-dom-define.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var createElement = __webpack_require__(/*! ../internals/document-create-element */ "./node_modules/core-js/internals/document-create-element.js");

// Thanks to IE8 for its funny defineProperty
module.exports = !DESCRIPTORS && !fails(function () {
  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
  return Object.defineProperty(createElement('div'), 'a', {
    get: function () { return 7; }
  }).a != 7;
});


/***/ }),

/***/ "./node_modules/core-js/internals/ieee754.js":
/*!***************************************************!*\
  !*** ./node_modules/core-js/internals/ieee754.js ***!
  \***************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

// IEEE754 conversions based on https://github.com/feross/ieee754
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

var Array = global.Array;
var abs = Math.abs;
var pow = Math.pow;
var floor = Math.floor;
var log = Math.log;
var LN2 = Math.LN2;

var pack = function (number, mantissaLength, bytes) {
  var buffer = Array(bytes);
  var exponentLength = bytes * 8 - mantissaLength - 1;
  var eMax = (1 << exponentLength) - 1;
  var eBias = eMax >> 1;
  var rt = mantissaLength === 23 ? pow(2, -24) - pow(2, -77) : 0;
  var sign = number < 0 || number === 0 && 1 / number < 0 ? 1 : 0;
  var index = 0;
  var exponent, mantissa, c;
  number = abs(number);
  // eslint-disable-next-line no-self-compare -- NaN check
  if (number != number || number === Infinity) {
    // eslint-disable-next-line no-self-compare -- NaN check
    mantissa = number != number ? 1 : 0;
    exponent = eMax;
  } else {
    exponent = floor(log(number) / LN2);
    c = pow(2, -exponent);
    if (number * c < 1) {
      exponent--;
      c *= 2;
    }
    if (exponent + eBias >= 1) {
      number += rt / c;
    } else {
      number += rt * pow(2, 1 - eBias);
    }
    if (number * c >= 2) {
      exponent++;
      c /= 2;
    }
    if (exponent + eBias >= eMax) {
      mantissa = 0;
      exponent = eMax;
    } else if (exponent + eBias >= 1) {
      mantissa = (number * c - 1) * pow(2, mantissaLength);
      exponent = exponent + eBias;
    } else {
      mantissa = number * pow(2, eBias - 1) * pow(2, mantissaLength);
      exponent = 0;
    }
  }
  while (mantissaLength >= 8) {
    buffer[index++] = mantissa & 255;
    mantissa /= 256;
    mantissaLength -= 8;
  }
  exponent = exponent << mantissaLength | mantissa;
  exponentLength += mantissaLength;
  while (exponentLength > 0) {
    buffer[index++] = exponent & 255;
    exponent /= 256;
    exponentLength -= 8;
  }
  buffer[--index] |= sign * 128;
  return buffer;
};

var unpack = function (buffer, mantissaLength) {
  var bytes = buffer.length;
  var exponentLength = bytes * 8 - mantissaLength - 1;
  var eMax = (1 << exponentLength) - 1;
  var eBias = eMax >> 1;
  var nBits = exponentLength - 7;
  var index = bytes - 1;
  var sign = buffer[index--];
  var exponent = sign & 127;
  var mantissa;
  sign >>= 7;
  while (nBits > 0) {
    exponent = exponent * 256 + buffer[index--];
    nBits -= 8;
  }
  mantissa = exponent & (1 << -nBits) - 1;
  exponent >>= -nBits;
  nBits += mantissaLength;
  while (nBits > 0) {
    mantissa = mantissa * 256 + buffer[index--];
    nBits -= 8;
  }
  if (exponent === 0) {
    exponent = 1 - eBias;
  } else if (exponent === eMax) {
    return mantissa ? NaN : sign ? -Infinity : Infinity;
  } else {
    mantissa = mantissa + pow(2, mantissaLength);
    exponent = exponent - eBias;
  } return (sign ? -1 : 1) * mantissa * pow(2, exponent - mantissaLength);
};

module.exports = {
  pack: pack,
  unpack: unpack
};


/***/ }),

/***/ "./node_modules/core-js/internals/indexed-object.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/indexed-object.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");

var Object = global.Object;
var split = uncurryThis(''.split);

// fallback for non-array-like ES3 and non-enumerable old V8 strings
module.exports = fails(function () {
  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
  // eslint-disable-next-line no-prototype-builtins -- safe
  return !Object('z').propertyIsEnumerable(0);
}) ? function (it) {
  return classof(it) == 'String' ? split(it, '') : Object(it);
} : Object;


/***/ }),

/***/ "./node_modules/core-js/internals/inherit-if-required.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/internals/inherit-if-required.js ***!
  \***************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var setPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");

// makes subclassing work correct for wrapped built-ins
module.exports = function ($this, dummy, Wrapper) {
  var NewTarget, NewTargetPrototype;
  if (
    // it can work only with native `setPrototypeOf`
    setPrototypeOf &&
    // we haven't completely correct pre-ES6 way for getting `new.target`, so use this
    isCallable(NewTarget = dummy.constructor) &&
    NewTarget !== Wrapper &&
    isObject(NewTargetPrototype = NewTarget.prototype) &&
    NewTargetPrototype !== Wrapper.prototype
  ) setPrototypeOf($this, NewTargetPrototype);
  return $this;
};


/***/ }),

/***/ "./node_modules/core-js/internals/inspect-source.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/inspect-source.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var store = __webpack_require__(/*! ../internals/shared-store */ "./node_modules/core-js/internals/shared-store.js");

var functionToString = uncurryThis(Function.toString);

// this helper broken in `core-js@3.4.1-3.4.4`, so we can't use `shared` helper
if (!isCallable(store.inspectSource)) {
  store.inspectSource = function (it) {
    return functionToString(it);
  };
}

module.exports = store.inspectSource;


/***/ }),

/***/ "./node_modules/core-js/internals/install-error-cause.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/internals/install-error-cause.js ***!
  \***************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");

// `InstallErrorCause` abstract operation
// https://tc39.es/proposal-error-cause/#sec-errorobjects-install-error-cause
module.exports = function (O, options) {
  if (isObject(options) && 'cause' in options) {
    createNonEnumerableProperty(O, 'cause', options.cause);
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/internal-metadata.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/internal-metadata.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var hiddenKeys = __webpack_require__(/*! ../internals/hidden-keys */ "./node_modules/core-js/internals/hidden-keys.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var getOwnPropertyNamesModule = __webpack_require__(/*! ../internals/object-get-own-property-names */ "./node_modules/core-js/internals/object-get-own-property-names.js");
var getOwnPropertyNamesExternalModule = __webpack_require__(/*! ../internals/object-get-own-property-names-external */ "./node_modules/core-js/internals/object-get-own-property-names-external.js");
var isExtensible = __webpack_require__(/*! ../internals/object-is-extensible */ "./node_modules/core-js/internals/object-is-extensible.js");
var uid = __webpack_require__(/*! ../internals/uid */ "./node_modules/core-js/internals/uid.js");
var FREEZING = __webpack_require__(/*! ../internals/freezing */ "./node_modules/core-js/internals/freezing.js");

var REQUIRED = false;
var METADATA = uid('meta');
var id = 0;

var setMetadata = function (it) {
  defineProperty(it, METADATA, { value: {
    objectID: 'O' + id++, // object ID
    weakData: {}          // weak collections IDs
  } });
};

var fastKey = function (it, create) {
  // return a primitive with prefix
  if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
  if (!hasOwn(it, METADATA)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible(it)) return 'F';
    // not necessary to add metadata
    if (!create) return 'E';
    // add missing metadata
    setMetadata(it);
  // return object ID
  } return it[METADATA].objectID;
};

var getWeakData = function (it, create) {
  if (!hasOwn(it, METADATA)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible(it)) return true;
    // not necessary to add metadata
    if (!create) return false;
    // add missing metadata
    setMetadata(it);
  // return the store of weak collections IDs
  } return it[METADATA].weakData;
};

// add metadata on freeze-family methods calling
var onFreeze = function (it) {
  if (FREEZING && REQUIRED && isExtensible(it) && !hasOwn(it, METADATA)) setMetadata(it);
  return it;
};

var enable = function () {
  meta.enable = function () { /* empty */ };
  REQUIRED = true;
  var getOwnPropertyNames = getOwnPropertyNamesModule.f;
  var splice = uncurryThis([].splice);
  var test = {};
  test[METADATA] = 1;

  // prevent exposing of metadata key
  if (getOwnPropertyNames(test).length) {
    getOwnPropertyNamesModule.f = function (it) {
      var result = getOwnPropertyNames(it);
      for (var i = 0, length = result.length; i < length; i++) {
        if (result[i] === METADATA) {
          splice(result, i, 1);
          break;
        }
      } return result;
    };

    $({ target: 'Object', stat: true, forced: true }, {
      getOwnPropertyNames: getOwnPropertyNamesExternalModule.f
    });
  }
};

var meta = module.exports = {
  enable: enable,
  fastKey: fastKey,
  getWeakData: getWeakData,
  onFreeze: onFreeze
};

hiddenKeys[METADATA] = true;


/***/ }),

/***/ "./node_modules/core-js/internals/internal-state.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/internal-state.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var NATIVE_WEAK_MAP = __webpack_require__(/*! ../internals/native-weak-map */ "./node_modules/core-js/internals/native-weak-map.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var shared = __webpack_require__(/*! ../internals/shared-store */ "./node_modules/core-js/internals/shared-store.js");
var sharedKey = __webpack_require__(/*! ../internals/shared-key */ "./node_modules/core-js/internals/shared-key.js");
var hiddenKeys = __webpack_require__(/*! ../internals/hidden-keys */ "./node_modules/core-js/internals/hidden-keys.js");

var OBJECT_ALREADY_INITIALIZED = 'Object already initialized';
var TypeError = global.TypeError;
var WeakMap = global.WeakMap;
var set, get, has;

var enforce = function (it) {
  return has(it) ? get(it) : set(it, {});
};

var getterFor = function (TYPE) {
  return function (it) {
    var state;
    if (!isObject(it) || (state = get(it)).type !== TYPE) {
      throw TypeError('Incompatible receiver, ' + TYPE + ' required');
    } return state;
  };
};

if (NATIVE_WEAK_MAP || shared.state) {
  var store = shared.state || (shared.state = new WeakMap());
  var wmget = uncurryThis(store.get);
  var wmhas = uncurryThis(store.has);
  var wmset = uncurryThis(store.set);
  set = function (it, metadata) {
    if (wmhas(store, it)) throw new TypeError(OBJECT_ALREADY_INITIALIZED);
    metadata.facade = it;
    wmset(store, it, metadata);
    return metadata;
  };
  get = function (it) {
    return wmget(store, it) || {};
  };
  has = function (it) {
    return wmhas(store, it);
  };
} else {
  var STATE = sharedKey('state');
  hiddenKeys[STATE] = true;
  set = function (it, metadata) {
    if (hasOwn(it, STATE)) throw new TypeError(OBJECT_ALREADY_INITIALIZED);
    metadata.facade = it;
    createNonEnumerableProperty(it, STATE, metadata);
    return metadata;
  };
  get = function (it) {
    return hasOwn(it, STATE) ? it[STATE] : {};
  };
  has = function (it) {
    return hasOwn(it, STATE);
  };
}

module.exports = {
  set: set,
  get: get,
  has: has,
  enforce: enforce,
  getterFor: getterFor
};


/***/ }),

/***/ "./node_modules/core-js/internals/is-array-iterator-method.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/is-array-iterator-method.js ***!
  \********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var Iterators = __webpack_require__(/*! ../internals/iterators */ "./node_modules/core-js/internals/iterators.js");

var ITERATOR = wellKnownSymbol('iterator');
var ArrayPrototype = Array.prototype;

// check on default Array iterator
module.exports = function (it) {
  return it !== undefined && (Iterators.Array === it || ArrayPrototype[ITERATOR] === it);
};


/***/ }),

/***/ "./node_modules/core-js/internals/is-array.js":
/*!****************************************************!*\
  !*** ./node_modules/core-js/internals/is-array.js ***!
  \****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");

// `IsArray` abstract operation
// https://tc39.es/ecma262/#sec-isarray
// eslint-disable-next-line es/no-array-isarray -- safe
module.exports = Array.isArray || function isArray(argument) {
  return classof(argument) == 'Array';
};


/***/ }),

/***/ "./node_modules/core-js/internals/is-callable.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/is-callable.js ***!
  \*******************************************************/
/***/ ((module) => {

// `IsCallable` abstract operation
// https://tc39.es/ecma262/#sec-iscallable
module.exports = function (argument) {
  return typeof argument == 'function';
};


/***/ }),

/***/ "./node_modules/core-js/internals/is-constructor.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/is-constructor.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var classof = __webpack_require__(/*! ../internals/classof */ "./node_modules/core-js/internals/classof.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var inspectSource = __webpack_require__(/*! ../internals/inspect-source */ "./node_modules/core-js/internals/inspect-source.js");

var noop = function () { /* empty */ };
var empty = [];
var construct = getBuiltIn('Reflect', 'construct');
var constructorRegExp = /^\s*(?:class|function)\b/;
var exec = uncurryThis(constructorRegExp.exec);
var INCORRECT_TO_STRING = !constructorRegExp.exec(noop);

var isConstructorModern = function isConstructor(argument) {
  if (!isCallable(argument)) return false;
  try {
    construct(noop, empty, argument);
    return true;
  } catch (error) {
    return false;
  }
};

var isConstructorLegacy = function isConstructor(argument) {
  if (!isCallable(argument)) return false;
  switch (classof(argument)) {
    case 'AsyncFunction':
    case 'GeneratorFunction':
    case 'AsyncGeneratorFunction': return false;
  }
  try {
    // we can't check .prototype since constructors produced by .bind haven't it
    // `Function#toString` throws on some built-it function in some legacy engines
    // (for example, `DOMQuad` and similar in FF41-)
    return INCORRECT_TO_STRING || !!exec(constructorRegExp, inspectSource(argument));
  } catch (error) {
    return true;
  }
};

isConstructorLegacy.sham = true;

// `IsConstructor` abstract operation
// https://tc39.es/ecma262/#sec-isconstructor
module.exports = !construct || fails(function () {
  var called;
  return isConstructorModern(isConstructorModern.call)
    || !isConstructorModern(Object)
    || !isConstructorModern(function () { called = true; })
    || called;
}) ? isConstructorLegacy : isConstructorModern;


/***/ }),

/***/ "./node_modules/core-js/internals/is-data-descriptor.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/is-data-descriptor.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");

module.exports = function (descriptor) {
  return descriptor !== undefined && (hasOwn(descriptor, 'value') || hasOwn(descriptor, 'writable'));
};


/***/ }),

/***/ "./node_modules/core-js/internals/is-forced.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/is-forced.js ***!
  \*****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");

var replacement = /#|\.prototype\./;

var isForced = function (feature, detection) {
  var value = data[normalize(feature)];
  return value == POLYFILL ? true
    : value == NATIVE ? false
    : isCallable(detection) ? fails(detection)
    : !!detection;
};

var normalize = isForced.normalize = function (string) {
  return String(string).replace(replacement, '.').toLowerCase();
};

var data = isForced.data = {};
var NATIVE = isForced.NATIVE = 'N';
var POLYFILL = isForced.POLYFILL = 'P';

module.exports = isForced;


/***/ }),

/***/ "./node_modules/core-js/internals/is-integral-number.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/is-integral-number.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");

var floor = Math.floor;

// `IsIntegralNumber` abstract operation
// https://tc39.es/ecma262/#sec-isintegralnumber
// eslint-disable-next-line es/no-number-isinteger -- safe
module.exports = Number.isInteger || function isInteger(it) {
  return !isObject(it) && isFinite(it) && floor(it) === it;
};


/***/ }),

/***/ "./node_modules/core-js/internals/is-object.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/is-object.js ***!
  \*****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");

module.exports = function (it) {
  return typeof it == 'object' ? it !== null : isCallable(it);
};


/***/ }),

/***/ "./node_modules/core-js/internals/is-pure.js":
/*!***************************************************!*\
  !*** ./node_modules/core-js/internals/is-pure.js ***!
  \***************************************************/
/***/ ((module) => {

module.exports = false;


/***/ }),

/***/ "./node_modules/core-js/internals/is-regexp.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/is-regexp.js ***!
  \*****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var MATCH = wellKnownSymbol('match');

// `IsRegExp` abstract operation
// https://tc39.es/ecma262/#sec-isregexp
module.exports = function (it) {
  var isRegExp;
  return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : classof(it) == 'RegExp');
};


/***/ }),

/***/ "./node_modules/core-js/internals/is-symbol.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/is-symbol.js ***!
  \*****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var USE_SYMBOL_AS_UID = __webpack_require__(/*! ../internals/use-symbol-as-uid */ "./node_modules/core-js/internals/use-symbol-as-uid.js");

var Object = global.Object;

module.exports = USE_SYMBOL_AS_UID ? function (it) {
  return typeof it == 'symbol';
} : function (it) {
  var $Symbol = getBuiltIn('Symbol');
  return isCallable($Symbol) && isPrototypeOf($Symbol.prototype, Object(it));
};


/***/ }),

/***/ "./node_modules/core-js/internals/iterate.js":
/*!***************************************************!*\
  !*** ./node_modules/core-js/internals/iterate.js ***!
  \***************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var tryToString = __webpack_require__(/*! ../internals/try-to-string */ "./node_modules/core-js/internals/try-to-string.js");
var isArrayIteratorMethod = __webpack_require__(/*! ../internals/is-array-iterator-method */ "./node_modules/core-js/internals/is-array-iterator-method.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var getIteratorMethod = __webpack_require__(/*! ../internals/get-iterator-method */ "./node_modules/core-js/internals/get-iterator-method.js");
var iteratorClose = __webpack_require__(/*! ../internals/iterator-close */ "./node_modules/core-js/internals/iterator-close.js");

var TypeError = global.TypeError;

var Result = function (stopped, result) {
  this.stopped = stopped;
  this.result = result;
};

var ResultPrototype = Result.prototype;

module.exports = function (iterable, unboundFunction, options) {
  var that = options && options.that;
  var AS_ENTRIES = !!(options && options.AS_ENTRIES);
  var IS_ITERATOR = !!(options && options.IS_ITERATOR);
  var INTERRUPTED = !!(options && options.INTERRUPTED);
  var fn = bind(unboundFunction, that);
  var iterator, iterFn, index, length, result, next, step;

  var stop = function (condition) {
    if (iterator) iteratorClose(iterator, 'normal', condition);
    return new Result(true, condition);
  };

  var callFn = function (value) {
    if (AS_ENTRIES) {
      anObject(value);
      return INTERRUPTED ? fn(value[0], value[1], stop) : fn(value[0], value[1]);
    } return INTERRUPTED ? fn(value, stop) : fn(value);
  };

  if (IS_ITERATOR) {
    iterator = iterable;
  } else {
    iterFn = getIteratorMethod(iterable);
    if (!iterFn) throw TypeError(tryToString(iterable) + ' is not iterable');
    // optimisation for array iterators
    if (isArrayIteratorMethod(iterFn)) {
      for (index = 0, length = lengthOfArrayLike(iterable); length > index; index++) {
        result = callFn(iterable[index]);
        if (result && isPrototypeOf(ResultPrototype, result)) return result;
      } return new Result(false);
    }
    iterator = getIterator(iterable, iterFn);
  }

  next = iterator.next;
  while (!(step = call(next, iterator)).done) {
    try {
      result = callFn(step.value);
    } catch (error) {
      iteratorClose(iterator, 'throw', error);
    }
    if (typeof result == 'object' && result && isPrototypeOf(ResultPrototype, result)) return result;
  } return new Result(false);
};


/***/ }),

/***/ "./node_modules/core-js/internals/iterator-close.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/iterator-close.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");

module.exports = function (iterator, kind, value) {
  var innerResult, innerError;
  anObject(iterator);
  try {
    innerResult = getMethod(iterator, 'return');
    if (!innerResult) {
      if (kind === 'throw') throw value;
      return value;
    }
    innerResult = call(innerResult, iterator);
  } catch (error) {
    innerError = true;
    innerResult = error;
  }
  if (kind === 'throw') throw value;
  if (innerError) throw innerResult;
  anObject(innerResult);
  return value;
};


/***/ }),

/***/ "./node_modules/core-js/internals/iterator-create-proxy.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/internals/iterator-create-proxy.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var IteratorPrototype = (__webpack_require__(/*! ../internals/iterators-core */ "./node_modules/core-js/internals/iterators-core.js").IteratorPrototype);

var ITERATOR_PROXY = 'IteratorProxy';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(ITERATOR_PROXY);

var TO_STRING_TAG = wellKnownSymbol('toStringTag');

module.exports = function (nextHandler, IS_ITERATOR) {
  var IteratorProxy = function Iterator(state) {
    state.type = ITERATOR_PROXY;
    state.next = aCallable(state.iterator.next);
    state.done = false;
    state.ignoreArg = !IS_ITERATOR;
    setInternalState(this, state);
  };

  IteratorProxy.prototype = redefineAll(create(IteratorPrototype), {
    next: function next(arg) {
      var state = getInternalState(this);
      var args = arguments.length ? [state.ignoreArg ? undefined : arg] : IS_ITERATOR ? [] : [undefined];
      state.ignoreArg = false;
      var result = state.done ? undefined : call(nextHandler, state, args);
      return { done: state.done, value: result };
    },
    'return': function (value) {
      var state = getInternalState(this);
      var iterator = state.iterator;
      state.done = true;
      var $$return = getMethod(iterator, 'return');
      return { done: true, value: $$return ? anObject(call($$return, iterator, value)).value : value };
    },
    'throw': function (value) {
      var state = getInternalState(this);
      var iterator = state.iterator;
      state.done = true;
      var $$throw = getMethod(iterator, 'throw');
      if ($$throw) return call($$throw, iterator, value);
      throw value;
    }
  });

  if (!IS_ITERATOR) {
    createNonEnumerableProperty(IteratorProxy.prototype, TO_STRING_TAG, 'Generator');
  }

  return IteratorProxy;
};


/***/ }),

/***/ "./node_modules/core-js/internals/iterators-core.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/internals/iterators-core.js ***!
  \**********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

var ITERATOR = wellKnownSymbol('iterator');
var BUGGY_SAFARI_ITERATORS = false;

// `%IteratorPrototype%` object
// https://tc39.es/ecma262/#sec-%iteratorprototype%-object
var IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;

/* eslint-disable es/no-array-prototype-keys -- safe */
if ([].keys) {
  arrayIterator = [].keys();
  // Safari 8 has buggy iterators w/o `next`
  if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS = true;
  else {
    PrototypeOfArrayIteratorPrototype = getPrototypeOf(getPrototypeOf(arrayIterator));
    if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype = PrototypeOfArrayIteratorPrototype;
  }
}

var NEW_ITERATOR_PROTOTYPE = IteratorPrototype == undefined || fails(function () {
  var test = {};
  // FF44- legacy iterators case
  return IteratorPrototype[ITERATOR].call(test) !== test;
});

if (NEW_ITERATOR_PROTOTYPE) IteratorPrototype = {};
else if (IS_PURE) IteratorPrototype = create(IteratorPrototype);

// `%IteratorPrototype%[@@iterator]()` method
// https://tc39.es/ecma262/#sec-%iteratorprototype%-@@iterator
if (!isCallable(IteratorPrototype[ITERATOR])) {
  redefine(IteratorPrototype, ITERATOR, function () {
    return this;
  });
}

module.exports = {
  IteratorPrototype: IteratorPrototype,
  BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS
};


/***/ }),

/***/ "./node_modules/core-js/internals/iterators.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/iterators.js ***!
  \*****************************************************/
/***/ ((module) => {

module.exports = {};


/***/ }),

/***/ "./node_modules/core-js/internals/length-of-array-like.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/internals/length-of-array-like.js ***!
  \****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");

// `LengthOfArrayLike` abstract operation
// https://tc39.es/ecma262/#sec-lengthofarraylike
module.exports = function (obj) {
  return toLength(obj.length);
};


/***/ }),

/***/ "./node_modules/core-js/internals/map-emplace.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/map-emplace.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

// `Map.prototype.emplace` method
// https://github.com/thumbsupep/proposal-upsert
module.exports = function emplace(key, handler) {
  var map = anObject(this);
  var get = aCallable(map.get);
  var has = aCallable(map.has);
  var set = aCallable(map.set);
  var value = (call(has, map, key) && 'update' in handler)
    ? handler.update(call(get, map, key), key, map)
    : handler.insert(key, map);
  call(set, map, key, value);
  return value;
};


/***/ }),

/***/ "./node_modules/core-js/internals/map-upsert.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/map-upsert.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var TypeError = global.TypeError;

// `Map.prototype.upsert` method
// https://github.com/thumbsupep/proposal-upsert
module.exports = function upsert(key, updateFn /* , insertFn */) {
  var map = anObject(this);
  var get = aCallable(map.get);
  var has = aCallable(map.has);
  var set = aCallable(map.set);
  var insertFn = arguments.length > 2 ? arguments[2] : undefined;
  var value;
  if (!isCallable(updateFn) && !isCallable(insertFn)) {
    throw TypeError('At least one callback required');
  }
  if (call(has, map, key)) {
    value = call(get, map, key);
    if (isCallable(updateFn)) {
      value = updateFn(value);
      call(set, map, key, value);
    }
  } else if (isCallable(insertFn)) {
    value = insertFn();
    call(set, map, key, value);
  } return value;
};


/***/ }),

/***/ "./node_modules/core-js/internals/math-expm1.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/math-expm1.js ***!
  \******************************************************/
/***/ ((module) => {

// eslint-disable-next-line es/no-math-expm1 -- safe
var $expm1 = Math.expm1;
var exp = Math.exp;

// `Math.expm1` method implementation
// https://tc39.es/ecma262/#sec-math.expm1
module.exports = (!$expm1
  // Old FF bug
  || $expm1(10) > 22025.465794806719 || $expm1(10) < 22025.4657948067165168
  // Tor Browser bug
  || $expm1(-2e-17) != -2e-17
) ? function expm1(x) {
  return (x = +x) == 0 ? x : x > -1e-6 && x < 1e-6 ? x + x * x / 2 : exp(x) - 1;
} : $expm1;


/***/ }),

/***/ "./node_modules/core-js/internals/math-fround.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/math-fround.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var sign = __webpack_require__(/*! ../internals/math-sign */ "./node_modules/core-js/internals/math-sign.js");

var abs = Math.abs;
var pow = Math.pow;
var EPSILON = pow(2, -52);
var EPSILON32 = pow(2, -23);
var MAX32 = pow(2, 127) * (2 - EPSILON32);
var MIN32 = pow(2, -126);

var roundTiesToEven = function (n) {
  return n + 1 / EPSILON - 1 / EPSILON;
};

// `Math.fround` method implementation
// https://tc39.es/ecma262/#sec-math.fround
// eslint-disable-next-line es/no-math-fround -- safe
module.exports = Math.fround || function fround(x) {
  var $abs = abs(x);
  var $sign = sign(x);
  var a, result;
  if ($abs < MIN32) return $sign * roundTiesToEven($abs / MIN32 / EPSILON32) * MIN32 * EPSILON32;
  a = (1 + EPSILON32 / EPSILON) * $abs;
  result = a - (a - $abs);
  // eslint-disable-next-line no-self-compare -- NaN check
  if (result > MAX32 || result != result) return $sign * Infinity;
  return $sign * result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/math-log10.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/math-log10.js ***!
  \******************************************************/
/***/ ((module) => {

var log = Math.log;
var LOG10E = Math.LOG10E;

// eslint-disable-next-line es/no-math-log10 -- safe
module.exports = Math.log10 || function log10(x) {
  return log(x) * LOG10E;
};


/***/ }),

/***/ "./node_modules/core-js/internals/math-log1p.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/math-log1p.js ***!
  \******************************************************/
/***/ ((module) => {

var log = Math.log;

// `Math.log1p` method implementation
// https://tc39.es/ecma262/#sec-math.log1p
// eslint-disable-next-line es/no-math-log1p -- safe
module.exports = Math.log1p || function log1p(x) {
  return (x = +x) > -1e-8 && x < 1e-8 ? x - x * x / 2 : log(1 + x);
};


/***/ }),

/***/ "./node_modules/core-js/internals/math-scale.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/math-scale.js ***!
  \******************************************************/
/***/ ((module) => {

// `Math.scale` method implementation
// https://rwaldron.github.io/proposal-math-extensions/
module.exports = Math.scale || function scale(x, inLow, inHigh, outLow, outHigh) {
  var nx = +x;
  var nInLow = +inLow;
  var nInHigh = +inHigh;
  var nOutLow = +outLow;
  var nOutHigh = +outHigh;
  // eslint-disable-next-line no-self-compare -- NaN check
  if (nx != nx || nInLow != nInLow || nInHigh != nInHigh || nOutLow != nOutLow || nOutHigh != nOutHigh) return NaN;
  if (nx === Infinity || nx === -Infinity) return nx;
  return (nx - nInLow) * (nOutHigh - nOutLow) / (nInHigh - nInLow) + nOutLow;
};


/***/ }),

/***/ "./node_modules/core-js/internals/math-sign.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/math-sign.js ***!
  \*****************************************************/
/***/ ((module) => {

// `Math.sign` method implementation
// https://tc39.es/ecma262/#sec-math.sign
// eslint-disable-next-line es/no-math-sign -- safe
module.exports = Math.sign || function sign(x) {
  // eslint-disable-next-line no-self-compare -- NaN check
  return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
};


/***/ }),

/***/ "./node_modules/core-js/internals/microtask.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/microtask.js ***!
  \*****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var getOwnPropertyDescriptor = (__webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js").f);
var macrotask = (__webpack_require__(/*! ../internals/task */ "./node_modules/core-js/internals/task.js").set);
var IS_IOS = __webpack_require__(/*! ../internals/engine-is-ios */ "./node_modules/core-js/internals/engine-is-ios.js");
var IS_IOS_PEBBLE = __webpack_require__(/*! ../internals/engine-is-ios-pebble */ "./node_modules/core-js/internals/engine-is-ios-pebble.js");
var IS_WEBOS_WEBKIT = __webpack_require__(/*! ../internals/engine-is-webos-webkit */ "./node_modules/core-js/internals/engine-is-webos-webkit.js");
var IS_NODE = __webpack_require__(/*! ../internals/engine-is-node */ "./node_modules/core-js/internals/engine-is-node.js");

var MutationObserver = global.MutationObserver || global.WebKitMutationObserver;
var document = global.document;
var process = global.process;
var Promise = global.Promise;
// Node.js 11 shows ExperimentalWarning on getting `queueMicrotask`
var queueMicrotaskDescriptor = getOwnPropertyDescriptor(global, 'queueMicrotask');
var queueMicrotask = queueMicrotaskDescriptor && queueMicrotaskDescriptor.value;

var flush, head, last, notify, toggle, node, promise, then;

// modern engines have queueMicrotask method
if (!queueMicrotask) {
  flush = function () {
    var parent, fn;
    if (IS_NODE && (parent = process.domain)) parent.exit();
    while (head) {
      fn = head.fn;
      head = head.next;
      try {
        fn();
      } catch (error) {
        if (head) notify();
        else last = undefined;
        throw error;
      }
    } last = undefined;
    if (parent) parent.enter();
  };

  // browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339
  // also except WebOS Webkit https://github.com/zloirock/core-js/issues/898
  if (!IS_IOS && !IS_NODE && !IS_WEBOS_WEBKIT && MutationObserver && document) {
    toggle = true;
    node = document.createTextNode('');
    new MutationObserver(flush).observe(node, { characterData: true });
    notify = function () {
      node.data = toggle = !toggle;
    };
  // environments with maybe non-completely correct, but existent Promise
  } else if (!IS_IOS_PEBBLE && Promise && Promise.resolve) {
    // Promise.resolve without an argument throws an error in LG WebOS 2
    promise = Promise.resolve(undefined);
    // workaround of WebKit ~ iOS Safari 10.1 bug
    promise.constructor = Promise;
    then = bind(promise.then, promise);
    notify = function () {
      then(flush);
    };
  // Node.js without promises
  } else if (IS_NODE) {
    notify = function () {
      process.nextTick(flush);
    };
  // for other environments - macrotask based on:
  // - setImmediate
  // - MessageChannel
  // - window.postMessag
  // - onreadystatechange
  // - setTimeout
  } else {
    // strange IE + webpack dev server bug - use .bind(global)
    macrotask = bind(macrotask, global);
    notify = function () {
      macrotask(flush);
    };
  }
}

module.exports = queueMicrotask || function (fn) {
  var task = { fn: fn, next: undefined };
  if (last) last.next = task;
  if (!head) {
    head = task;
    notify();
  } last = task;
};


/***/ }),

/***/ "./node_modules/core-js/internals/native-promise-constructor.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/internals/native-promise-constructor.js ***!
  \**********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

module.exports = global.Promise;


/***/ }),

/***/ "./node_modules/core-js/internals/native-symbol.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/native-symbol.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

/* eslint-disable es/no-symbol -- required for testing */
var V8_VERSION = __webpack_require__(/*! ../internals/engine-v8-version */ "./node_modules/core-js/internals/engine-v8-version.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

// eslint-disable-next-line es/no-object-getownpropertysymbols -- required for testing
module.exports = !!Object.getOwnPropertySymbols && !fails(function () {
  var symbol = Symbol();
  // Chrome 38 Symbol has incorrect toString conversion
  // `get-own-property-symbols` polyfill symbols converted to object are not Symbol instances
  return !String(symbol) || !(Object(symbol) instanceof Symbol) ||
    // Chrome 38-40 symbols are not inherited from DOM collections prototypes to instances
    !Symbol.sham && V8_VERSION && V8_VERSION < 41;
});


/***/ }),

/***/ "./node_modules/core-js/internals/native-url.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/native-url.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

var ITERATOR = wellKnownSymbol('iterator');

module.exports = !fails(function () {
  // eslint-disable-next-line unicorn/relative-url-style -- required for testing
  var url = new URL('b?a=1&b=2&c=3', 'http://a');
  var searchParams = url.searchParams;
  var result = '';
  url.pathname = 'c%20d';
  searchParams.forEach(function (value, key) {
    searchParams['delete']('b');
    result += key + value;
  });
  return (IS_PURE && !url.toJSON)
    || !searchParams.sort
    || url.href !== 'http://a/c%20d?a=1&c=3'
    || searchParams.get('c') !== '3'
    || String(new URLSearchParams('?a=1')) !== 'a=1'
    || !searchParams[ITERATOR]
    // throws in Edge
    || new URL('https://a@b').username !== 'a'
    || new URLSearchParams(new URLSearchParams('a=b')).get('a') !== 'b'
    // not punycoded in Edge
    || new URL('http://тест').host !== 'xn--e1aybc'
    // not escaped in Chrome 62-
    || new URL('http://a#б').hash !== '#%D0%B1'
    // fails in Chrome 66-
    || result !== 'a1c3'
    // throws in Safari
    || new URL('http://x', undefined).host !== 'x';
});


/***/ }),

/***/ "./node_modules/core-js/internals/native-weak-map.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/native-weak-map.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var inspectSource = __webpack_require__(/*! ../internals/inspect-source */ "./node_modules/core-js/internals/inspect-source.js");

var WeakMap = global.WeakMap;

module.exports = isCallable(WeakMap) && /native code/.test(inspectSource(WeakMap));


/***/ }),

/***/ "./node_modules/core-js/internals/new-promise-capability.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/internals/new-promise-capability.js ***!
  \******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");

var PromiseCapability = function (C) {
  var resolve, reject;
  this.promise = new C(function ($$resolve, $$reject) {
    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
    resolve = $$resolve;
    reject = $$reject;
  });
  this.resolve = aCallable(resolve);
  this.reject = aCallable(reject);
};

// `NewPromiseCapability` abstract operation
// https://tc39.es/ecma262/#sec-newpromisecapability
module.exports.f = function (C) {
  return new PromiseCapability(C);
};


/***/ }),

/***/ "./node_modules/core-js/internals/normalize-string-argument.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/internals/normalize-string-argument.js ***!
  \*********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");

module.exports = function (argument, $default) {
  return argument === undefined ? arguments.length < 2 ? '' : $default : toString(argument);
};


/***/ }),

/***/ "./node_modules/core-js/internals/not-a-regexp.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/internals/not-a-regexp.js ***!
  \********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var isRegExp = __webpack_require__(/*! ../internals/is-regexp */ "./node_modules/core-js/internals/is-regexp.js");

var TypeError = global.TypeError;

module.exports = function (it) {
  if (isRegExp(it)) {
    throw TypeError("The method doesn't accept regular expressions");
  } return it;
};


/***/ }),

/***/ "./node_modules/core-js/internals/number-is-finite.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/number-is-finite.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

var globalIsFinite = global.isFinite;

// `Number.isFinite` method
// https://tc39.es/ecma262/#sec-number.isfinite
// eslint-disable-next-line es/no-number-isfinite -- safe
module.exports = Number.isFinite || function isFinite(it) {
  return typeof it == 'number' && globalIsFinite(it);
};


/***/ }),

/***/ "./node_modules/core-js/internals/number-parse-float.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/number-parse-float.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var trim = (__webpack_require__(/*! ../internals/string-trim */ "./node_modules/core-js/internals/string-trim.js").trim);
var whitespaces = __webpack_require__(/*! ../internals/whitespaces */ "./node_modules/core-js/internals/whitespaces.js");

var charAt = uncurryThis(''.charAt);
var n$ParseFloat = global.parseFloat;
var Symbol = global.Symbol;
var ITERATOR = Symbol && Symbol.iterator;
var FORCED = 1 / n$ParseFloat(whitespaces + '-0') !== -Infinity
  // MS Edge 18- broken with boxed symbols
  || (ITERATOR && !fails(function () { n$ParseFloat(Object(ITERATOR)); }));

// `parseFloat` method
// https://tc39.es/ecma262/#sec-parsefloat-string
module.exports = FORCED ? function parseFloat(string) {
  var trimmedString = trim(toString(string));
  var result = n$ParseFloat(trimmedString);
  return result === 0 && charAt(trimmedString, 0) == '-' ? -0 : result;
} : n$ParseFloat;


/***/ }),

/***/ "./node_modules/core-js/internals/number-parse-int.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/number-parse-int.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var trim = (__webpack_require__(/*! ../internals/string-trim */ "./node_modules/core-js/internals/string-trim.js").trim);
var whitespaces = __webpack_require__(/*! ../internals/whitespaces */ "./node_modules/core-js/internals/whitespaces.js");

var $parseInt = global.parseInt;
var Symbol = global.Symbol;
var ITERATOR = Symbol && Symbol.iterator;
var hex = /^[+-]?0x/i;
var exec = uncurryThis(hex.exec);
var FORCED = $parseInt(whitespaces + '08') !== 8 || $parseInt(whitespaces + '0x16') !== 22
  // MS Edge 18- broken with boxed symbols
  || (ITERATOR && !fails(function () { $parseInt(Object(ITERATOR)); }));

// `parseInt` method
// https://tc39.es/ecma262/#sec-parseint-string-radix
module.exports = FORCED ? function parseInt(string, radix) {
  var S = trim(toString(string));
  return $parseInt(S, (radix >>> 0) || (exec(hex, S) ? 16 : 10));
} : $parseInt;


/***/ }),

/***/ "./node_modules/core-js/internals/numeric-range-iterator.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/internals/numeric-range-iterator.js ***!
  \******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var createIteratorConstructor = __webpack_require__(/*! ../internals/create-iterator-constructor */ "./node_modules/core-js/internals/create-iterator-constructor.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var defineProperties = (__webpack_require__(/*! ../internals/object-define-properties */ "./node_modules/core-js/internals/object-define-properties.js").f);
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");

var INCORRECT_RANGE = 'Incorrect Number.range arguments';
var NUMERIC_RANGE_ITERATOR = 'NumericRangeIterator';

var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(NUMERIC_RANGE_ITERATOR);

var RangeError = global.RangeError;
var TypeError = global.TypeError;

var $RangeIterator = createIteratorConstructor(function NumericRangeIterator(start, end, option, type, zero, one) {
  if (typeof start != type || (end !== Infinity && end !== -Infinity && typeof end != type)) {
    throw new TypeError(INCORRECT_RANGE);
  }
  if (start === Infinity || start === -Infinity) {
    throw new RangeError(INCORRECT_RANGE);
  }
  var ifIncrease = end > start;
  var inclusiveEnd = false;
  var step;
  if (option === undefined) {
    step = undefined;
  } else if (isObject(option)) {
    step = option.step;
    inclusiveEnd = !!option.inclusive;
  } else if (typeof option == type) {
    step = option;
  } else {
    throw new TypeError(INCORRECT_RANGE);
  }
  if (step == null) {
    step = ifIncrease ? one : -one;
  }
  if (typeof step != type) {
    throw new TypeError(INCORRECT_RANGE);
  }
  if (step === Infinity || step === -Infinity || (step === zero && start !== end)) {
    throw new RangeError(INCORRECT_RANGE);
  }
  // eslint-disable-next-line no-self-compare -- NaN check
  var hitsEnd = start != start || end != end || step != step || (end > start) !== (step > zero);
  setInternalState(this, {
    type: NUMERIC_RANGE_ITERATOR,
    start: start,
    end: end,
    step: step,
    inclusiveEnd: inclusiveEnd,
    hitsEnd: hitsEnd,
    currentCount: zero,
    zero: zero
  });
  if (!DESCRIPTORS) {
    this.start = start;
    this.end = end;
    this.step = step;
    this.inclusive = inclusiveEnd;
  }
}, NUMERIC_RANGE_ITERATOR, function next() {
  var state = getInternalState(this);
  if (state.hitsEnd) return { value: undefined, done: true };
  var start = state.start;
  var end = state.end;
  var step = state.step;
  var currentYieldingValue = start + (step * state.currentCount++);
  if (currentYieldingValue === end) state.hitsEnd = true;
  var inclusiveEnd = state.inclusiveEnd;
  var endCondition;
  if (end > start) {
    endCondition = inclusiveEnd ? currentYieldingValue > end : currentYieldingValue >= end;
  } else {
    endCondition = inclusiveEnd ? end > currentYieldingValue : end >= currentYieldingValue;
  }
  if (endCondition) {
    return { value: undefined, done: state.hitsEnd = true };
  } return { value: currentYieldingValue, done: false };
});

var getter = function (fn) {
  return { get: fn, set: function () { /* empty */ }, configurable: true, enumerable: false };
};

if (DESCRIPTORS) {
  defineProperties($RangeIterator.prototype, {
    start: getter(function () {
      return getInternalState(this).start;
    }),
    end: getter(function () {
      return getInternalState(this).end;
    }),
    inclusive: getter(function () {
      return getInternalState(this).inclusiveEnd;
    }),
    step: getter(function () {
      return getInternalState(this).step;
    })
  });
}

module.exports = $RangeIterator;


/***/ }),

/***/ "./node_modules/core-js/internals/object-assign.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/object-assign.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var objectKeys = __webpack_require__(/*! ../internals/object-keys */ "./node_modules/core-js/internals/object-keys.js");
var getOwnPropertySymbolsModule = __webpack_require__(/*! ../internals/object-get-own-property-symbols */ "./node_modules/core-js/internals/object-get-own-property-symbols.js");
var propertyIsEnumerableModule = __webpack_require__(/*! ../internals/object-property-is-enumerable */ "./node_modules/core-js/internals/object-property-is-enumerable.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var IndexedObject = __webpack_require__(/*! ../internals/indexed-object */ "./node_modules/core-js/internals/indexed-object.js");

// eslint-disable-next-line es/no-object-assign -- safe
var $assign = Object.assign;
// eslint-disable-next-line es/no-object-defineproperty -- required for testing
var defineProperty = Object.defineProperty;
var concat = uncurryThis([].concat);

// `Object.assign` method
// https://tc39.es/ecma262/#sec-object.assign
module.exports = !$assign || fails(function () {
  // should have correct order of operations (Edge bug)
  if (DESCRIPTORS && $assign({ b: 1 }, $assign(defineProperty({}, 'a', {
    enumerable: true,
    get: function () {
      defineProperty(this, 'b', {
        value: 3,
        enumerable: false
      });
    }
  }), { b: 2 })).b !== 1) return true;
  // should work with symbols and should have deterministic property order (V8 bug)
  var A = {};
  var B = {};
  // eslint-disable-next-line es/no-symbol -- safe
  var symbol = Symbol();
  var alphabet = 'abcdefghijklmnopqrst';
  A[symbol] = 7;
  alphabet.split('').forEach(function (chr) { B[chr] = chr; });
  return $assign({}, A)[symbol] != 7 || objectKeys($assign({}, B)).join('') != alphabet;
}) ? function assign(target, source) { // eslint-disable-line no-unused-vars -- required for `.length`
  var T = toObject(target);
  var argumentsLength = arguments.length;
  var index = 1;
  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
  var propertyIsEnumerable = propertyIsEnumerableModule.f;
  while (argumentsLength > index) {
    var S = IndexedObject(arguments[index++]);
    var keys = getOwnPropertySymbols ? concat(objectKeys(S), getOwnPropertySymbols(S)) : objectKeys(S);
    var length = keys.length;
    var j = 0;
    var key;
    while (length > j) {
      key = keys[j++];
      if (!DESCRIPTORS || call(propertyIsEnumerable, S, key)) T[key] = S[key];
    }
  } return T;
} : $assign;


/***/ }),

/***/ "./node_modules/core-js/internals/object-create.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/object-create.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

/* global ActiveXObject -- old IE, WSH */
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var definePropertiesModule = __webpack_require__(/*! ../internals/object-define-properties */ "./node_modules/core-js/internals/object-define-properties.js");
var enumBugKeys = __webpack_require__(/*! ../internals/enum-bug-keys */ "./node_modules/core-js/internals/enum-bug-keys.js");
var hiddenKeys = __webpack_require__(/*! ../internals/hidden-keys */ "./node_modules/core-js/internals/hidden-keys.js");
var html = __webpack_require__(/*! ../internals/html */ "./node_modules/core-js/internals/html.js");
var documentCreateElement = __webpack_require__(/*! ../internals/document-create-element */ "./node_modules/core-js/internals/document-create-element.js");
var sharedKey = __webpack_require__(/*! ../internals/shared-key */ "./node_modules/core-js/internals/shared-key.js");

var GT = '>';
var LT = '<';
var PROTOTYPE = 'prototype';
var SCRIPT = 'script';
var IE_PROTO = sharedKey('IE_PROTO');

var EmptyConstructor = function () { /* empty */ };

var scriptTag = function (content) {
  return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;
};

// Create object with fake `null` prototype: use ActiveX Object with cleared prototype
var NullProtoObjectViaActiveX = function (activeXDocument) {
  activeXDocument.write(scriptTag(''));
  activeXDocument.close();
  var temp = activeXDocument.parentWindow.Object;
  activeXDocument = null; // avoid memory leak
  return temp;
};

// Create object with fake `null` prototype: use iframe Object with cleared prototype
var NullProtoObjectViaIFrame = function () {
  // Thrash, waste and sodomy: IE GC bug
  var iframe = documentCreateElement('iframe');
  var JS = 'java' + SCRIPT + ':';
  var iframeDocument;
  iframe.style.display = 'none';
  html.appendChild(iframe);
  // https://github.com/zloirock/core-js/issues/475
  iframe.src = String(JS);
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(scriptTag('document.F=Object'));
  iframeDocument.close();
  return iframeDocument.F;
};

// Check for document.domain and active x support
// No need to use active x approach when document.domain is not set
// see https://github.com/es-shims/es5-shim/issues/150
// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346
// avoid IE GC bug
var activeXDocument;
var NullProtoObject = function () {
  try {
    activeXDocument = new ActiveXObject('htmlfile');
  } catch (error) { /* ignore */ }
  NullProtoObject = typeof document != 'undefined'
    ? document.domain && activeXDocument
      ? NullProtoObjectViaActiveX(activeXDocument) // old IE
      : NullProtoObjectViaIFrame()
    : NullProtoObjectViaActiveX(activeXDocument); // WSH
  var length = enumBugKeys.length;
  while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];
  return NullProtoObject();
};

hiddenKeys[IE_PROTO] = true;

// `Object.create` method
// https://tc39.es/ecma262/#sec-object.create
module.exports = Object.create || function create(O, Properties) {
  var result;
  if (O !== null) {
    EmptyConstructor[PROTOTYPE] = anObject(O);
    result = new EmptyConstructor();
    EmptyConstructor[PROTOTYPE] = null;
    // add "__proto__" for Object.getPrototypeOf polyfill
    result[IE_PROTO] = O;
  } else result = NullProtoObject();
  return Properties === undefined ? result : definePropertiesModule.f(result, Properties);
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-define-properties.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/object-define-properties.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var V8_PROTOTYPE_DEFINE_BUG = __webpack_require__(/*! ../internals/v8-prototype-define-bug */ "./node_modules/core-js/internals/v8-prototype-define-bug.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var objectKeys = __webpack_require__(/*! ../internals/object-keys */ "./node_modules/core-js/internals/object-keys.js");

// `Object.defineProperties` method
// https://tc39.es/ecma262/#sec-object.defineproperties
// eslint-disable-next-line es/no-object-defineproperties -- safe
exports.f = DESCRIPTORS && !V8_PROTOTYPE_DEFINE_BUG ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject(O);
  var props = toIndexedObject(Properties);
  var keys = objectKeys(Properties);
  var length = keys.length;
  var index = 0;
  var key;
  while (length > index) definePropertyModule.f(O, key = keys[index++], props[key]);
  return O;
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-define-property.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/internals/object-define-property.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var IE8_DOM_DEFINE = __webpack_require__(/*! ../internals/ie8-dom-define */ "./node_modules/core-js/internals/ie8-dom-define.js");
var V8_PROTOTYPE_DEFINE_BUG = __webpack_require__(/*! ../internals/v8-prototype-define-bug */ "./node_modules/core-js/internals/v8-prototype-define-bug.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toPropertyKey = __webpack_require__(/*! ../internals/to-property-key */ "./node_modules/core-js/internals/to-property-key.js");

var TypeError = global.TypeError;
// eslint-disable-next-line es/no-object-defineproperty -- safe
var $defineProperty = Object.defineProperty;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
var ENUMERABLE = 'enumerable';
var CONFIGURABLE = 'configurable';
var WRITABLE = 'writable';

// `Object.defineProperty` method
// https://tc39.es/ecma262/#sec-object.defineproperty
exports.f = DESCRIPTORS ? V8_PROTOTYPE_DEFINE_BUG ? function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPropertyKey(P);
  anObject(Attributes);
  if (typeof O === 'function' && P === 'prototype' && 'value' in Attributes && WRITABLE in Attributes && !Attributes[WRITABLE]) {
    var current = $getOwnPropertyDescriptor(O, P);
    if (current && current[WRITABLE]) {
      O[P] = Attributes.value;
      Attributes = {
        configurable: CONFIGURABLE in Attributes ? Attributes[CONFIGURABLE] : current[CONFIGURABLE],
        enumerable: ENUMERABLE in Attributes ? Attributes[ENUMERABLE] : current[ENUMERABLE],
        writable: false
      };
    }
  } return $defineProperty(O, P, Attributes);
} : $defineProperty : function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPropertyKey(P);
  anObject(Attributes);
  if (IE8_DOM_DEFINE) try {
    return $defineProperty(O, P, Attributes);
  } catch (error) { /* empty */ }
  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-get-own-property-descriptor.js":
/*!******************************************************************************!*\
  !*** ./node_modules/core-js/internals/object-get-own-property-descriptor.js ***!
  \******************************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var propertyIsEnumerableModule = __webpack_require__(/*! ../internals/object-property-is-enumerable */ "./node_modules/core-js/internals/object-property-is-enumerable.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var toPropertyKey = __webpack_require__(/*! ../internals/to-property-key */ "./node_modules/core-js/internals/to-property-key.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var IE8_DOM_DEFINE = __webpack_require__(/*! ../internals/ie8-dom-define */ "./node_modules/core-js/internals/ie8-dom-define.js");

// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;

// `Object.getOwnPropertyDescriptor` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
exports.f = DESCRIPTORS ? $getOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {
  O = toIndexedObject(O);
  P = toPropertyKey(P);
  if (IE8_DOM_DEFINE) try {
    return $getOwnPropertyDescriptor(O, P);
  } catch (error) { /* empty */ }
  if (hasOwn(O, P)) return createPropertyDescriptor(!call(propertyIsEnumerableModule.f, O, P), O[P]);
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-get-own-property-names-external.js":
/*!**********************************************************************************!*\
  !*** ./node_modules/core-js/internals/object-get-own-property-names-external.js ***!
  \**********************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

/* eslint-disable es/no-object-getownpropertynames -- safe */
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var $getOwnPropertyNames = (__webpack_require__(/*! ../internals/object-get-own-property-names */ "./node_modules/core-js/internals/object-get-own-property-names.js").f);
var arraySlice = __webpack_require__(/*! ../internals/array-slice-simple */ "./node_modules/core-js/internals/array-slice-simple.js");

var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
  ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function (it) {
  try {
    return $getOwnPropertyNames(it);
  } catch (error) {
    return arraySlice(windowNames);
  }
};

// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
module.exports.f = function getOwnPropertyNames(it) {
  return windowNames && classof(it) == 'Window'
    ? getWindowNames(it)
    : $getOwnPropertyNames(toIndexedObject(it));
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-get-own-property-names.js":
/*!*************************************************************************!*\
  !*** ./node_modules/core-js/internals/object-get-own-property-names.js ***!
  \*************************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

var internalObjectKeys = __webpack_require__(/*! ../internals/object-keys-internal */ "./node_modules/core-js/internals/object-keys-internal.js");
var enumBugKeys = __webpack_require__(/*! ../internals/enum-bug-keys */ "./node_modules/core-js/internals/enum-bug-keys.js");

var hiddenKeys = enumBugKeys.concat('length', 'prototype');

// `Object.getOwnPropertyNames` method
// https://tc39.es/ecma262/#sec-object.getownpropertynames
// eslint-disable-next-line es/no-object-getownpropertynames -- safe
exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return internalObjectKeys(O, hiddenKeys);
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-get-own-property-symbols.js":
/*!***************************************************************************!*\
  !*** ./node_modules/core-js/internals/object-get-own-property-symbols.js ***!
  \***************************************************************************/
/***/ ((__unused_webpack_module, exports) => {

// eslint-disable-next-line es/no-object-getownpropertysymbols -- safe
exports.f = Object.getOwnPropertySymbols;


/***/ }),

/***/ "./node_modules/core-js/internals/object-get-prototype-of.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/internals/object-get-prototype-of.js ***!
  \*******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var sharedKey = __webpack_require__(/*! ../internals/shared-key */ "./node_modules/core-js/internals/shared-key.js");
var CORRECT_PROTOTYPE_GETTER = __webpack_require__(/*! ../internals/correct-prototype-getter */ "./node_modules/core-js/internals/correct-prototype-getter.js");

var IE_PROTO = sharedKey('IE_PROTO');
var Object = global.Object;
var ObjectPrototype = Object.prototype;

// `Object.getPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.getprototypeof
module.exports = CORRECT_PROTOTYPE_GETTER ? Object.getPrototypeOf : function (O) {
  var object = toObject(O);
  if (hasOwn(object, IE_PROTO)) return object[IE_PROTO];
  var constructor = object.constructor;
  if (isCallable(constructor) && object instanceof constructor) {
    return constructor.prototype;
  } return object instanceof Object ? ObjectPrototype : null;
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-is-extensible.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/internals/object-is-extensible.js ***!
  \****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var ARRAY_BUFFER_NON_EXTENSIBLE = __webpack_require__(/*! ../internals/array-buffer-non-extensible */ "./node_modules/core-js/internals/array-buffer-non-extensible.js");

// eslint-disable-next-line es/no-object-isextensible -- safe
var $isExtensible = Object.isExtensible;
var FAILS_ON_PRIMITIVES = fails(function () { $isExtensible(1); });

// `Object.isExtensible` method
// https://tc39.es/ecma262/#sec-object.isextensible
module.exports = (FAILS_ON_PRIMITIVES || ARRAY_BUFFER_NON_EXTENSIBLE) ? function isExtensible(it) {
  if (!isObject(it)) return false;
  if (ARRAY_BUFFER_NON_EXTENSIBLE && classof(it) == 'ArrayBuffer') return false;
  return $isExtensible ? $isExtensible(it) : true;
} : $isExtensible;


/***/ }),

/***/ "./node_modules/core-js/internals/object-is-prototype-of.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/internals/object-is-prototype-of.js ***!
  \******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

module.exports = uncurryThis({}.isPrototypeOf);


/***/ }),

/***/ "./node_modules/core-js/internals/object-iterator.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/object-iterator.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var createIteratorConstructor = __webpack_require__(/*! ../internals/create-iterator-constructor */ "./node_modules/core-js/internals/create-iterator-constructor.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var objectKeys = __webpack_require__(/*! ../internals/object-keys */ "./node_modules/core-js/internals/object-keys.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");

var OBJECT_ITERATOR = 'Object Iterator';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(OBJECT_ITERATOR);

module.exports = createIteratorConstructor(function ObjectIterator(source, mode) {
  var object = toObject(source);
  setInternalState(this, {
    type: OBJECT_ITERATOR,
    mode: mode,
    object: object,
    keys: objectKeys(object),
    index: 0
  });
}, 'Object', function next() {
  var state = getInternalState(this);
  var keys = state.keys;
  while (true) {
    if (keys === null || state.index >= keys.length) {
      state.object = state.keys = null;
      return { value: undefined, done: true };
    }
    var key = keys[state.index++];
    var object = state.object;
    if (!hasOwn(object, key)) continue;
    switch (state.mode) {
      case 'keys': return { value: key, done: false };
      case 'values': return { value: object[key], done: false };
    } /* entries */ return { value: [key, object[key]], done: false };
  }
});


/***/ }),

/***/ "./node_modules/core-js/internals/object-keys-internal.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/internals/object-keys-internal.js ***!
  \****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var indexOf = (__webpack_require__(/*! ../internals/array-includes */ "./node_modules/core-js/internals/array-includes.js").indexOf);
var hiddenKeys = __webpack_require__(/*! ../internals/hidden-keys */ "./node_modules/core-js/internals/hidden-keys.js");

var push = uncurryThis([].push);

module.exports = function (object, names) {
  var O = toIndexedObject(object);
  var i = 0;
  var result = [];
  var key;
  for (key in O) !hasOwn(hiddenKeys, key) && hasOwn(O, key) && push(result, key);
  // Don't enum bug & hidden keys
  while (names.length > i) if (hasOwn(O, key = names[i++])) {
    ~indexOf(result, key) || push(result, key);
  }
  return result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-keys.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/object-keys.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var internalObjectKeys = __webpack_require__(/*! ../internals/object-keys-internal */ "./node_modules/core-js/internals/object-keys-internal.js");
var enumBugKeys = __webpack_require__(/*! ../internals/enum-bug-keys */ "./node_modules/core-js/internals/enum-bug-keys.js");

// `Object.keys` method
// https://tc39.es/ecma262/#sec-object.keys
// eslint-disable-next-line es/no-object-keys -- safe
module.exports = Object.keys || function keys(O) {
  return internalObjectKeys(O, enumBugKeys);
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-property-is-enumerable.js":
/*!*************************************************************************!*\
  !*** ./node_modules/core-js/internals/object-property-is-enumerable.js ***!
  \*************************************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";

var $propertyIsEnumerable = {}.propertyIsEnumerable;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;

// Nashorn ~ JDK8 bug
var NASHORN_BUG = getOwnPropertyDescriptor && !$propertyIsEnumerable.call({ 1: 2 }, 1);

// `Object.prototype.propertyIsEnumerable` method implementation
// https://tc39.es/ecma262/#sec-object.prototype.propertyisenumerable
exports.f = NASHORN_BUG ? function propertyIsEnumerable(V) {
  var descriptor = getOwnPropertyDescriptor(this, V);
  return !!descriptor && descriptor.enumerable;
} : $propertyIsEnumerable;


/***/ }),

/***/ "./node_modules/core-js/internals/object-prototype-accessors-forced.js":
/*!*****************************************************************************!*\
  !*** ./node_modules/core-js/internals/object-prototype-accessors-forced.js ***!
  \*****************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var WEBKIT = __webpack_require__(/*! ../internals/engine-webkit-version */ "./node_modules/core-js/internals/engine-webkit-version.js");

// Forced replacement object prototype accessors methods
module.exports = IS_PURE || !fails(function () {
  // This feature detection crashes old WebKit
  // https://github.com/zloirock/core-js/issues/232
  if (WEBKIT && WEBKIT < 535) return;
  var key = Math.random();
  // In FF throws only define methods
  // eslint-disable-next-line no-undef, no-useless-call -- required for testing
  __defineSetter__.call(null, key, function () { /* empty */ });
  delete global[key];
});


/***/ }),

/***/ "./node_modules/core-js/internals/object-set-prototype-of.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/internals/object-set-prototype-of.js ***!
  \*******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

/* eslint-disable no-proto -- safe */
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var aPossiblePrototype = __webpack_require__(/*! ../internals/a-possible-prototype */ "./node_modules/core-js/internals/a-possible-prototype.js");

// `Object.setPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.setprototypeof
// Works with __proto__ only. Old v8 can't work with null proto objects.
// eslint-disable-next-line es/no-object-setprototypeof -- safe
module.exports = Object.setPrototypeOf || ('__proto__' in {} ? function () {
  var CORRECT_SETTER = false;
  var test = {};
  var setter;
  try {
    // eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
    setter = uncurryThis(Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set);
    setter(test, []);
    CORRECT_SETTER = test instanceof Array;
  } catch (error) { /* empty */ }
  return function setPrototypeOf(O, proto) {
    anObject(O);
    aPossiblePrototype(proto);
    if (CORRECT_SETTER) setter(O, proto);
    else O.__proto__ = proto;
    return O;
  };
}() : undefined);


/***/ }),

/***/ "./node_modules/core-js/internals/object-to-array.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/object-to-array.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var objectKeys = __webpack_require__(/*! ../internals/object-keys */ "./node_modules/core-js/internals/object-keys.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var $propertyIsEnumerable = (__webpack_require__(/*! ../internals/object-property-is-enumerable */ "./node_modules/core-js/internals/object-property-is-enumerable.js").f);

var propertyIsEnumerable = uncurryThis($propertyIsEnumerable);
var push = uncurryThis([].push);

// `Object.{ entries, values }` methods implementation
var createMethod = function (TO_ENTRIES) {
  return function (it) {
    var O = toIndexedObject(it);
    var keys = objectKeys(O);
    var length = keys.length;
    var i = 0;
    var result = [];
    var key;
    while (length > i) {
      key = keys[i++];
      if (!DESCRIPTORS || propertyIsEnumerable(O, key)) {
        push(result, TO_ENTRIES ? [key, O[key]] : O[key]);
      }
    }
    return result;
  };
};

module.exports = {
  // `Object.entries` method
  // https://tc39.es/ecma262/#sec-object.entries
  entries: createMethod(true),
  // `Object.values` method
  // https://tc39.es/ecma262/#sec-object.values
  values: createMethod(false)
};


/***/ }),

/***/ "./node_modules/core-js/internals/object-to-string.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/object-to-string.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var TO_STRING_TAG_SUPPORT = __webpack_require__(/*! ../internals/to-string-tag-support */ "./node_modules/core-js/internals/to-string-tag-support.js");
var classof = __webpack_require__(/*! ../internals/classof */ "./node_modules/core-js/internals/classof.js");

// `Object.prototype.toString` method implementation
// https://tc39.es/ecma262/#sec-object.prototype.tostring
module.exports = TO_STRING_TAG_SUPPORT ? {}.toString : function toString() {
  return '[object ' + classof(this) + ']';
};


/***/ }),

/***/ "./node_modules/core-js/internals/ordinary-to-primitive.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/internals/ordinary-to-primitive.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");

var TypeError = global.TypeError;

// `OrdinaryToPrimitive` abstract operation
// https://tc39.es/ecma262/#sec-ordinarytoprimitive
module.exports = function (input, pref) {
  var fn, val;
  if (pref === 'string' && isCallable(fn = input.toString) && !isObject(val = call(fn, input))) return val;
  if (isCallable(fn = input.valueOf) && !isObject(val = call(fn, input))) return val;
  if (pref !== 'string' && isCallable(fn = input.toString) && !isObject(val = call(fn, input))) return val;
  throw TypeError("Can't convert object to primitive value");
};


/***/ }),

/***/ "./node_modules/core-js/internals/own-keys.js":
/*!****************************************************!*\
  !*** ./node_modules/core-js/internals/own-keys.js ***!
  \****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var getOwnPropertyNamesModule = __webpack_require__(/*! ../internals/object-get-own-property-names */ "./node_modules/core-js/internals/object-get-own-property-names.js");
var getOwnPropertySymbolsModule = __webpack_require__(/*! ../internals/object-get-own-property-symbols */ "./node_modules/core-js/internals/object-get-own-property-symbols.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var concat = uncurryThis([].concat);

// all object keys, includes non-enumerable and symbols
module.exports = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {
  var keys = getOwnPropertyNamesModule.f(anObject(it));
  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
  return getOwnPropertySymbols ? concat(keys, getOwnPropertySymbols(it)) : keys;
};


/***/ }),

/***/ "./node_modules/core-js/internals/path.js":
/*!************************************************!*\
  !*** ./node_modules/core-js/internals/path.js ***!
  \************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

module.exports = global;


/***/ }),

/***/ "./node_modules/core-js/internals/perform.js":
/*!***************************************************!*\
  !*** ./node_modules/core-js/internals/perform.js ***!
  \***************************************************/
/***/ ((module) => {

module.exports = function (exec) {
  try {
    return { error: false, value: exec() };
  } catch (error) {
    return { error: true, value: error };
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/promise-resolve.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/promise-resolve.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var newPromiseCapability = __webpack_require__(/*! ../internals/new-promise-capability */ "./node_modules/core-js/internals/new-promise-capability.js");

module.exports = function (C, x) {
  anObject(C);
  if (isObject(x) && x.constructor === C) return x;
  var promiseCapability = newPromiseCapability.f(C);
  var resolve = promiseCapability.resolve;
  resolve(x);
  return promiseCapability.promise;
};


/***/ }),

/***/ "./node_modules/core-js/internals/queue.js":
/*!*************************************************!*\
  !*** ./node_modules/core-js/internals/queue.js ***!
  \*************************************************/
/***/ ((module) => {

var Queue = function () {
  this.head = null;
  this.tail = null;
};

Queue.prototype = {
  add: function (item) {
    var entry = { item: item, next: null };
    if (this.head) this.tail.next = entry;
    else this.head = entry;
    this.tail = entry;
  },
  get: function () {
    var entry = this.head;
    if (entry) {
      this.head = entry.next;
      if (this.tail === entry) this.tail = null;
      return entry.item;
    }
  }
};

module.exports = Queue;


/***/ }),

/***/ "./node_modules/core-js/internals/redefine-all.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/internals/redefine-all.js ***!
  \********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");

module.exports = function (target, src, options) {
  for (var key in src) redefine(target, key, src[key], options);
  return target;
};


/***/ }),

/***/ "./node_modules/core-js/internals/redefine.js":
/*!****************************************************!*\
  !*** ./node_modules/core-js/internals/redefine.js ***!
  \****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var setGlobal = __webpack_require__(/*! ../internals/set-global */ "./node_modules/core-js/internals/set-global.js");
var inspectSource = __webpack_require__(/*! ../internals/inspect-source */ "./node_modules/core-js/internals/inspect-source.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var CONFIGURABLE_FUNCTION_NAME = (__webpack_require__(/*! ../internals/function-name */ "./node_modules/core-js/internals/function-name.js").CONFIGURABLE);

var getInternalState = InternalStateModule.get;
var enforceInternalState = InternalStateModule.enforce;
var TEMPLATE = String(String).split('String');

(module.exports = function (O, key, value, options) {
  var unsafe = options ? !!options.unsafe : false;
  var simple = options ? !!options.enumerable : false;
  var noTargetGet = options ? !!options.noTargetGet : false;
  var name = options && options.name !== undefined ? options.name : key;
  var state;
  if (isCallable(value)) {
    if (String(name).slice(0, 7) === 'Symbol(') {
      name = '[' + String(name).replace(/^Symbol\(([^)]*)\)/, '$1') + ']';
    }
    if (!hasOwn(value, 'name') || (CONFIGURABLE_FUNCTION_NAME && value.name !== name)) {
      createNonEnumerableProperty(value, 'name', name);
    }
    state = enforceInternalState(value);
    if (!state.source) {
      state.source = TEMPLATE.join(typeof name == 'string' ? name : '');
    }
  }
  if (O === global) {
    if (simple) O[key] = value;
    else setGlobal(key, value);
    return;
  } else if (!unsafe) {
    delete O[key];
  } else if (!noTargetGet && O[key]) {
    simple = true;
  }
  if (simple) O[key] = value;
  else createNonEnumerableProperty(O, key, value);
// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
})(Function.prototype, 'toString', function toString() {
  return isCallable(this) && getInternalState(this).source || inspectSource(this);
});


/***/ }),

/***/ "./node_modules/core-js/internals/reflect-metadata.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/reflect-metadata.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`
__webpack_require__(/*! ../modules/es.map */ "./node_modules/core-js/modules/es.map.js");
__webpack_require__(/*! ../modules/es.weak-map */ "./node_modules/core-js/modules/es.weak-map.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var shared = __webpack_require__(/*! ../internals/shared */ "./node_modules/core-js/internals/shared.js");

var Map = getBuiltIn('Map');
var WeakMap = getBuiltIn('WeakMap');
var push = uncurryThis([].push);

var metadata = shared('metadata');
var store = metadata.store || (metadata.store = new WeakMap());

var getOrCreateMetadataMap = function (target, targetKey, create) {
  var targetMetadata = store.get(target);
  if (!targetMetadata) {
    if (!create) return;
    store.set(target, targetMetadata = new Map());
  }
  var keyMetadata = targetMetadata.get(targetKey);
  if (!keyMetadata) {
    if (!create) return;
    targetMetadata.set(targetKey, keyMetadata = new Map());
  } return keyMetadata;
};

var ordinaryHasOwnMetadata = function (MetadataKey, O, P) {
  var metadataMap = getOrCreateMetadataMap(O, P, false);
  return metadataMap === undefined ? false : metadataMap.has(MetadataKey);
};

var ordinaryGetOwnMetadata = function (MetadataKey, O, P) {
  var metadataMap = getOrCreateMetadataMap(O, P, false);
  return metadataMap === undefined ? undefined : metadataMap.get(MetadataKey);
};

var ordinaryDefineOwnMetadata = function (MetadataKey, MetadataValue, O, P) {
  getOrCreateMetadataMap(O, P, true).set(MetadataKey, MetadataValue);
};

var ordinaryOwnMetadataKeys = function (target, targetKey) {
  var metadataMap = getOrCreateMetadataMap(target, targetKey, false);
  var keys = [];
  if (metadataMap) metadataMap.forEach(function (_, key) { push(keys, key); });
  return keys;
};

var toMetadataKey = function (it) {
  return it === undefined || typeof it == 'symbol' ? it : String(it);
};

module.exports = {
  store: store,
  getMap: getOrCreateMetadataMap,
  has: ordinaryHasOwnMetadata,
  get: ordinaryGetOwnMetadata,
  set: ordinaryDefineOwnMetadata,
  keys: ordinaryOwnMetadataKeys,
  toKey: toMetadataKey
};


/***/ }),

/***/ "./node_modules/core-js/internals/regexp-exec-abstract.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/internals/regexp-exec-abstract.js ***!
  \****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var regexpExec = __webpack_require__(/*! ../internals/regexp-exec */ "./node_modules/core-js/internals/regexp-exec.js");

var TypeError = global.TypeError;

// `RegExpExec` abstract operation
// https://tc39.es/ecma262/#sec-regexpexec
module.exports = function (R, S) {
  var exec = R.exec;
  if (isCallable(exec)) {
    var result = call(exec, R, S);
    if (result !== null) anObject(result);
    return result;
  }
  if (classof(R) === 'RegExp') return call(regexpExec, R, S);
  throw TypeError('RegExp#exec called on incompatible receiver');
};


/***/ }),

/***/ "./node_modules/core-js/internals/regexp-exec.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/regexp-exec.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

/* eslint-disable regexp/no-empty-capturing-group, regexp/no-empty-group, regexp/no-lazy-ends -- testing */
/* eslint-disable regexp/no-useless-quantifier -- testing */
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var regexpFlags = __webpack_require__(/*! ../internals/regexp-flags */ "./node_modules/core-js/internals/regexp-flags.js");
var stickyHelpers = __webpack_require__(/*! ../internals/regexp-sticky-helpers */ "./node_modules/core-js/internals/regexp-sticky-helpers.js");
var shared = __webpack_require__(/*! ../internals/shared */ "./node_modules/core-js/internals/shared.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var getInternalState = (__webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js").get);
var UNSUPPORTED_DOT_ALL = __webpack_require__(/*! ../internals/regexp-unsupported-dot-all */ "./node_modules/core-js/internals/regexp-unsupported-dot-all.js");
var UNSUPPORTED_NCG = __webpack_require__(/*! ../internals/regexp-unsupported-ncg */ "./node_modules/core-js/internals/regexp-unsupported-ncg.js");

var nativeReplace = shared('native-string-replace', String.prototype.replace);
var nativeExec = RegExp.prototype.exec;
var patchedExec = nativeExec;
var charAt = uncurryThis(''.charAt);
var indexOf = uncurryThis(''.indexOf);
var replace = uncurryThis(''.replace);
var stringSlice = uncurryThis(''.slice);

var UPDATES_LAST_INDEX_WRONG = (function () {
  var re1 = /a/;
  var re2 = /b*/g;
  call(nativeExec, re1, 'a');
  call(nativeExec, re2, 'a');
  return re1.lastIndex !== 0 || re2.lastIndex !== 0;
})();

var UNSUPPORTED_Y = stickyHelpers.BROKEN_CARET;

// nonparticipating capturing group, copied from es5-shim's String#split patch.
var NPCG_INCLUDED = /()??/.exec('')[1] !== undefined;

var PATCH = UPDATES_LAST_INDEX_WRONG || NPCG_INCLUDED || UNSUPPORTED_Y || UNSUPPORTED_DOT_ALL || UNSUPPORTED_NCG;

if (PATCH) {
  patchedExec = function exec(string) {
    var re = this;
    var state = getInternalState(re);
    var str = toString(string);
    var raw = state.raw;
    var result, reCopy, lastIndex, match, i, object, group;

    if (raw) {
      raw.lastIndex = re.lastIndex;
      result = call(patchedExec, raw, str);
      re.lastIndex = raw.lastIndex;
      return result;
    }

    var groups = state.groups;
    var sticky = UNSUPPORTED_Y && re.sticky;
    var flags = call(regexpFlags, re);
    var source = re.source;
    var charsAdded = 0;
    var strCopy = str;

    if (sticky) {
      flags = replace(flags, 'y', '');
      if (indexOf(flags, 'g') === -1) {
        flags += 'g';
      }

      strCopy = stringSlice(str, re.lastIndex);
      // Support anchored sticky behavior.
      if (re.lastIndex > 0 && (!re.multiline || re.multiline && charAt(str, re.lastIndex - 1) !== '\n')) {
        source = '(?: ' + source + ')';
        strCopy = ' ' + strCopy;
        charsAdded++;
      }
      // ^(? + rx + ) is needed, in combination with some str slicing, to
      // simulate the 'y' flag.
      reCopy = new RegExp('^(?:' + source + ')', flags);
    }

    if (NPCG_INCLUDED) {
      reCopy = new RegExp('^' + source + '$(?!\\s)', flags);
    }
    if (UPDATES_LAST_INDEX_WRONG) lastIndex = re.lastIndex;

    match = call(nativeExec, sticky ? reCopy : re, strCopy);

    if (sticky) {
      if (match) {
        match.input = stringSlice(match.input, charsAdded);
        match[0] = stringSlice(match[0], charsAdded);
        match.index = re.lastIndex;
        re.lastIndex += match[0].length;
      } else re.lastIndex = 0;
    } else if (UPDATES_LAST_INDEX_WRONG && match) {
      re.lastIndex = re.global ? match.index + match[0].length : lastIndex;
    }
    if (NPCG_INCLUDED && match && match.length > 1) {
      // Fix browsers whose `exec` methods don't consistently return `undefined`
      // for NPCG, like IE8. NOTE: This doesn' work for /(.?)?/
      call(nativeReplace, match[0], reCopy, function () {
        for (i = 1; i < arguments.length - 2; i++) {
          if (arguments[i] === undefined) match[i] = undefined;
        }
      });
    }

    if (match && groups) {
      match.groups = object = create(null);
      for (i = 0; i < groups.length; i++) {
        group = groups[i];
        object[group[0]] = match[group[1]];
      }
    }

    return match;
  };
}

module.exports = patchedExec;


/***/ }),

/***/ "./node_modules/core-js/internals/regexp-flags.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/internals/regexp-flags.js ***!
  \********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

// `RegExp.prototype.flags` getter implementation
// https://tc39.es/ecma262/#sec-get-regexp.prototype.flags
module.exports = function () {
  var that = anObject(this);
  var result = '';
  if (that.global) result += 'g';
  if (that.ignoreCase) result += 'i';
  if (that.multiline) result += 'm';
  if (that.dotAll) result += 's';
  if (that.unicode) result += 'u';
  if (that.sticky) result += 'y';
  return result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/regexp-sticky-helpers.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/internals/regexp-sticky-helpers.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

// babel-minify and Closure Compiler transpiles RegExp('a', 'y') -> /a/y and it causes SyntaxError
var $RegExp = global.RegExp;

var UNSUPPORTED_Y = fails(function () {
  var re = $RegExp('a', 'y');
  re.lastIndex = 2;
  return re.exec('abcd') != null;
});

// UC Browser bug
// https://github.com/zloirock/core-js/issues/1008
var MISSED_STICKY = UNSUPPORTED_Y || fails(function () {
  return !$RegExp('a', 'y').sticky;
});

var BROKEN_CARET = UNSUPPORTED_Y || fails(function () {
  // https://bugzilla.mozilla.org/show_bug.cgi?id=773687
  var re = $RegExp('^r', 'gy');
  re.lastIndex = 2;
  return re.exec('str') != null;
});

module.exports = {
  BROKEN_CARET: BROKEN_CARET,
  MISSED_STICKY: MISSED_STICKY,
  UNSUPPORTED_Y: UNSUPPORTED_Y
};


/***/ }),

/***/ "./node_modules/core-js/internals/regexp-unsupported-dot-all.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/internals/regexp-unsupported-dot-all.js ***!
  \**********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

// babel-minify and Closure Compiler transpiles RegExp('.', 's') -> /./s and it causes SyntaxError
var $RegExp = global.RegExp;

module.exports = fails(function () {
  var re = $RegExp('.', 's');
  return !(re.dotAll && re.exec('\n') && re.flags === 's');
});


/***/ }),

/***/ "./node_modules/core-js/internals/regexp-unsupported-ncg.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/internals/regexp-unsupported-ncg.js ***!
  \******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

// babel-minify and Closure Compiler transpiles RegExp('(?<a>b)', 'g') -> /(?<a>b)/g and it causes SyntaxError
var $RegExp = global.RegExp;

module.exports = fails(function () {
  var re = $RegExp('(?<a>b)', 'g');
  return re.exec('b').groups.a !== 'b' ||
    'b'.replace(re, '$<a>c') !== 'bc';
});


/***/ }),

/***/ "./node_modules/core-js/internals/require-object-coercible.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/require-object-coercible.js ***!
  \********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

var TypeError = global.TypeError;

// `RequireObjectCoercible` abstract operation
// https://tc39.es/ecma262/#sec-requireobjectcoercible
module.exports = function (it) {
  if (it == undefined) throw TypeError("Can't call method on " + it);
  return it;
};


/***/ }),

/***/ "./node_modules/core-js/internals/same-value-zero.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/same-value-zero.js ***!
  \***********************************************************/
/***/ ((module) => {

// `SameValueZero` abstract operation
// https://tc39.es/ecma262/#sec-samevaluezero
module.exports = function (x, y) {
  // eslint-disable-next-line no-self-compare -- NaN check
  return x === y || x != x && y != y;
};


/***/ }),

/***/ "./node_modules/core-js/internals/same-value.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/same-value.js ***!
  \******************************************************/
/***/ ((module) => {

// `SameValue` abstract operation
// https://tc39.es/ecma262/#sec-samevalue
// eslint-disable-next-line es/no-object-is -- safe
module.exports = Object.is || function is(x, y) {
  // eslint-disable-next-line no-self-compare -- NaN check
  return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;
};


/***/ }),

/***/ "./node_modules/core-js/internals/set-global.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/set-global.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

// eslint-disable-next-line es/no-object-defineproperty -- safe
var defineProperty = Object.defineProperty;

module.exports = function (key, value) {
  try {
    defineProperty(global, key, { value: value, configurable: true, writable: true });
  } catch (error) {
    global[key] = value;
  } return value;
};


/***/ }),

/***/ "./node_modules/core-js/internals/set-species.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/set-species.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");

var SPECIES = wellKnownSymbol('species');

module.exports = function (CONSTRUCTOR_NAME) {
  var Constructor = getBuiltIn(CONSTRUCTOR_NAME);
  var defineProperty = definePropertyModule.f;

  if (DESCRIPTORS && Constructor && !Constructor[SPECIES]) {
    defineProperty(Constructor, SPECIES, {
      configurable: true,
      get: function () { return this; }
    });
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/set-to-string-tag.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/set-to-string-tag.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var TO_STRING_TAG = wellKnownSymbol('toStringTag');

module.exports = function (target, TAG, STATIC) {
  if (target && !STATIC) target = target.prototype;
  if (target && !hasOwn(target, TO_STRING_TAG)) {
    defineProperty(target, TO_STRING_TAG, { configurable: true, value: TAG });
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/shared-key.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/shared-key.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var shared = __webpack_require__(/*! ../internals/shared */ "./node_modules/core-js/internals/shared.js");
var uid = __webpack_require__(/*! ../internals/uid */ "./node_modules/core-js/internals/uid.js");

var keys = shared('keys');

module.exports = function (key) {
  return keys[key] || (keys[key] = uid(key));
};


/***/ }),

/***/ "./node_modules/core-js/internals/shared-store.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/internals/shared-store.js ***!
  \********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var setGlobal = __webpack_require__(/*! ../internals/set-global */ "./node_modules/core-js/internals/set-global.js");

var SHARED = '__core-js_shared__';
var store = global[SHARED] || setGlobal(SHARED, {});

module.exports = store;


/***/ }),

/***/ "./node_modules/core-js/internals/shared.js":
/*!**************************************************!*\
  !*** ./node_modules/core-js/internals/shared.js ***!
  \**************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");
var store = __webpack_require__(/*! ../internals/shared-store */ "./node_modules/core-js/internals/shared-store.js");

(module.exports = function (key, value) {
  return store[key] || (store[key] = value !== undefined ? value : {});
})('versions', []).push({
  version: '3.21.0',
  mode: IS_PURE ? 'pure' : 'global',
  copyright: '© 2014-2022 Denis Pushkarev (zloirock.ru)',
  license: 'https://github.com/zloirock/core-js/blob/v3.21.0/LICENSE',
  source: 'https://github.com/zloirock/core-js'
});


/***/ }),

/***/ "./node_modules/core-js/internals/species-constructor.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/internals/species-constructor.js ***!
  \***************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var aConstructor = __webpack_require__(/*! ../internals/a-constructor */ "./node_modules/core-js/internals/a-constructor.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var SPECIES = wellKnownSymbol('species');

// `SpeciesConstructor` abstract operation
// https://tc39.es/ecma262/#sec-speciesconstructor
module.exports = function (O, defaultConstructor) {
  var C = anObject(O).constructor;
  var S;
  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? defaultConstructor : aConstructor(S);
};


/***/ }),

/***/ "./node_modules/core-js/internals/string-html-forced.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/string-html-forced.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

// check the existence of a method, lowercase
// of a tag and escaping quotes in arguments
module.exports = function (METHOD_NAME) {
  return fails(function () {
    var test = ''[METHOD_NAME]('"');
    return test !== test.toLowerCase() || test.split('"').length > 3;
  });
};


/***/ }),

/***/ "./node_modules/core-js/internals/string-multibyte.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/string-multibyte.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");

var charAt = uncurryThis(''.charAt);
var charCodeAt = uncurryThis(''.charCodeAt);
var stringSlice = uncurryThis(''.slice);

var createMethod = function (CONVERT_TO_STRING) {
  return function ($this, pos) {
    var S = toString(requireObjectCoercible($this));
    var position = toIntegerOrInfinity(pos);
    var size = S.length;
    var first, second;
    if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;
    first = charCodeAt(S, position);
    return first < 0xD800 || first > 0xDBFF || position + 1 === size
      || (second = charCodeAt(S, position + 1)) < 0xDC00 || second > 0xDFFF
        ? CONVERT_TO_STRING
          ? charAt(S, position)
          : first
        : CONVERT_TO_STRING
          ? stringSlice(S, position, position + 2)
          : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;
  };
};

module.exports = {
  // `String.prototype.codePointAt` method
  // https://tc39.es/ecma262/#sec-string.prototype.codepointat
  codeAt: createMethod(false),
  // `String.prototype.at` method
  // https://github.com/mathiasbynens/String.prototype.at
  charAt: createMethod(true)
};


/***/ }),

/***/ "./node_modules/core-js/internals/string-pad-webkit-bug.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/internals/string-pad-webkit-bug.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

// https://github.com/zloirock/core-js/issues/280
var userAgent = __webpack_require__(/*! ../internals/engine-user-agent */ "./node_modules/core-js/internals/engine-user-agent.js");

module.exports = /Version\/10(?:\.\d+){1,2}(?: [\w./]+)?(?: Mobile\/\w+)? Safari\//.test(userAgent);


/***/ }),

/***/ "./node_modules/core-js/internals/string-pad.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/internals/string-pad.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

// https://github.com/tc39/proposal-string-pad-start-end
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var $repeat = __webpack_require__(/*! ../internals/string-repeat */ "./node_modules/core-js/internals/string-repeat.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");

var repeat = uncurryThis($repeat);
var stringSlice = uncurryThis(''.slice);
var ceil = Math.ceil;

// `String.prototype.{ padStart, padEnd }` methods implementation
var createMethod = function (IS_END) {
  return function ($this, maxLength, fillString) {
    var S = toString(requireObjectCoercible($this));
    var intMaxLength = toLength(maxLength);
    var stringLength = S.length;
    var fillStr = fillString === undefined ? ' ' : toString(fillString);
    var fillLen, stringFiller;
    if (intMaxLength <= stringLength || fillStr == '') return S;
    fillLen = intMaxLength - stringLength;
    stringFiller = repeat(fillStr, ceil(fillLen / fillStr.length));
    if (stringFiller.length > fillLen) stringFiller = stringSlice(stringFiller, 0, fillLen);
    return IS_END ? S + stringFiller : stringFiller + S;
  };
};

module.exports = {
  // `String.prototype.padStart` method
  // https://tc39.es/ecma262/#sec-string.prototype.padstart
  start: createMethod(false),
  // `String.prototype.padEnd` method
  // https://tc39.es/ecma262/#sec-string.prototype.padend
  end: createMethod(true)
};


/***/ }),

/***/ "./node_modules/core-js/internals/string-punycode-to-ascii.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/internals/string-punycode-to-ascii.js ***!
  \********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// based on https://github.com/bestiejs/punycode.js/blob/master/punycode.js
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

var maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1
var base = 36;
var tMin = 1;
var tMax = 26;
var skew = 38;
var damp = 700;
var initialBias = 72;
var initialN = 128; // 0x80
var delimiter = '-'; // '\x2D'
var regexNonASCII = /[^\0-\u007E]/; // non-ASCII chars
var regexSeparators = /[.\u3002\uFF0E\uFF61]/g; // RFC 3490 separators
var OVERFLOW_ERROR = 'Overflow: input needs wider integers to process';
var baseMinusTMin = base - tMin;

var RangeError = global.RangeError;
var exec = uncurryThis(regexSeparators.exec);
var floor = Math.floor;
var fromCharCode = String.fromCharCode;
var charCodeAt = uncurryThis(''.charCodeAt);
var join = uncurryThis([].join);
var push = uncurryThis([].push);
var replace = uncurryThis(''.replace);
var split = uncurryThis(''.split);
var toLowerCase = uncurryThis(''.toLowerCase);

/**
 * Creates an array containing the numeric code points of each Unicode
 * character in the string. While JavaScript uses UCS-2 internally,
 * this function will convert a pair of surrogate halves (each of which
 * UCS-2 exposes as separate characters) into a single code point,
 * matching UTF-16.
 */
var ucs2decode = function (string) {
  var output = [];
  var counter = 0;
  var length = string.length;
  while (counter < length) {
    var value = charCodeAt(string, counter++);
    if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
      // It's a high surrogate, and there is a next character.
      var extra = charCodeAt(string, counter++);
      if ((extra & 0xFC00) == 0xDC00) { // Low surrogate.
        push(output, ((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
      } else {
        // It's an unmatched surrogate; only append this code unit, in case the
        // next code unit is the high surrogate of a surrogate pair.
        push(output, value);
        counter--;
      }
    } else {
      push(output, value);
    }
  }
  return output;
};

/**
 * Converts a digit/integer into a basic code point.
 */
var digitToBasic = function (digit) {
  //  0..25 map to ASCII a..z or A..Z
  // 26..35 map to ASCII 0..9
  return digit + 22 + 75 * (digit < 26);
};

/**
 * Bias adaptation function as per section 3.4 of RFC 3492.
 * https://tools.ietf.org/html/rfc3492#section-3.4
 */
var adapt = function (delta, numPoints, firstTime) {
  var k = 0;
  delta = firstTime ? floor(delta / damp) : delta >> 1;
  delta += floor(delta / numPoints);
  while (delta > baseMinusTMin * tMax >> 1) {
    delta = floor(delta / baseMinusTMin);
    k += base;
  }
  return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
};

/**
 * Converts a string of Unicode symbols (e.g. a domain name label) to a
 * Punycode string of ASCII-only symbols.
 */
var encode = function (input) {
  var output = [];

  // Convert the input in UCS-2 to an array of Unicode code points.
  input = ucs2decode(input);

  // Cache the length.
  var inputLength = input.length;

  // Initialize the state.
  var n = initialN;
  var delta = 0;
  var bias = initialBias;
  var i, currentValue;

  // Handle the basic code points.
  for (i = 0; i < input.length; i++) {
    currentValue = input[i];
    if (currentValue < 0x80) {
      push(output, fromCharCode(currentValue));
    }
  }

  var basicLength = output.length; // number of basic code points.
  var handledCPCount = basicLength; // number of code points that have been handled;

  // Finish the basic string with a delimiter unless it's empty.
  if (basicLength) {
    push(output, delimiter);
  }

  // Main encoding loop:
  while (handledCPCount < inputLength) {
    // All non-basic code points < n have been handled already. Find the next larger one:
    var m = maxInt;
    for (i = 0; i < input.length; i++) {
      currentValue = input[i];
      if (currentValue >= n && currentValue < m) {
        m = currentValue;
      }
    }

    // Increase `delta` enough to advance the decoder's <n,i> state to <m,0>, but guard against overflow.
    var handledCPCountPlusOne = handledCPCount + 1;
    if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
      throw RangeError(OVERFLOW_ERROR);
    }

    delta += (m - n) * handledCPCountPlusOne;
    n = m;

    for (i = 0; i < input.length; i++) {
      currentValue = input[i];
      if (currentValue < n && ++delta > maxInt) {
        throw RangeError(OVERFLOW_ERROR);
      }
      if (currentValue == n) {
        // Represent delta as a generalized variable-length integer.
        var q = delta;
        var k = base;
        while (true) {
          var t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
          if (q < t) break;
          var qMinusT = q - t;
          var baseMinusT = base - t;
          push(output, fromCharCode(digitToBasic(t + qMinusT % baseMinusT)));
          q = floor(qMinusT / baseMinusT);
          k += base;
        }

        push(output, fromCharCode(digitToBasic(q)));
        bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
        delta = 0;
        handledCPCount++;
      }
    }

    delta++;
    n++;
  }
  return join(output, '');
};

module.exports = function (input) {
  var encoded = [];
  var labels = split(replace(toLowerCase(input), regexSeparators, '\u002E'), '.');
  var i, label;
  for (i = 0; i < labels.length; i++) {
    label = labels[i];
    push(encoded, exec(regexNonASCII, label) ? 'xn--' + encode(label) : label);
  }
  return join(encoded, '.');
};


/***/ }),

/***/ "./node_modules/core-js/internals/string-repeat.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/string-repeat.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");

var RangeError = global.RangeError;

// `String.prototype.repeat` method implementation
// https://tc39.es/ecma262/#sec-string.prototype.repeat
module.exports = function repeat(count) {
  var str = toString(requireObjectCoercible(this));
  var result = '';
  var n = toIntegerOrInfinity(count);
  if (n < 0 || n == Infinity) throw RangeError('Wrong number of repetitions');
  for (;n > 0; (n >>>= 1) && (str += str)) if (n & 1) result += str;
  return result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/string-trim-forced.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/internals/string-trim-forced.js ***!
  \**************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var PROPER_FUNCTION_NAME = (__webpack_require__(/*! ../internals/function-name */ "./node_modules/core-js/internals/function-name.js").PROPER);
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var whitespaces = __webpack_require__(/*! ../internals/whitespaces */ "./node_modules/core-js/internals/whitespaces.js");

var non = '\u200B\u0085\u180E';

// check that a method works with the correct list
// of whitespaces and has a correct name
module.exports = function (METHOD_NAME) {
  return fails(function () {
    return !!whitespaces[METHOD_NAME]()
      || non[METHOD_NAME]() !== non
      || (PROPER_FUNCTION_NAME && whitespaces[METHOD_NAME].name !== METHOD_NAME);
  });
};


/***/ }),

/***/ "./node_modules/core-js/internals/string-trim.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/string-trim.js ***!
  \*******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var whitespaces = __webpack_require__(/*! ../internals/whitespaces */ "./node_modules/core-js/internals/whitespaces.js");

var replace = uncurryThis(''.replace);
var whitespace = '[' + whitespaces + ']';
var ltrim = RegExp('^' + whitespace + whitespace + '*');
var rtrim = RegExp(whitespace + whitespace + '*$');

// `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation
var createMethod = function (TYPE) {
  return function ($this) {
    var string = toString(requireObjectCoercible($this));
    if (TYPE & 1) string = replace(string, ltrim, '');
    if (TYPE & 2) string = replace(string, rtrim, '');
    return string;
  };
};

module.exports = {
  // `String.prototype.{ trimLeft, trimStart }` methods
  // https://tc39.es/ecma262/#sec-string.prototype.trimstart
  start: createMethod(1),
  // `String.prototype.{ trimRight, trimEnd }` methods
  // https://tc39.es/ecma262/#sec-string.prototype.trimend
  end: createMethod(2),
  // `String.prototype.trim` method
  // https://tc39.es/ecma262/#sec-string.prototype.trim
  trim: createMethod(3)
};


/***/ }),

/***/ "./node_modules/core-js/internals/task.js":
/*!************************************************!*\
  !*** ./node_modules/core-js/internals/task.js ***!
  \************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var html = __webpack_require__(/*! ../internals/html */ "./node_modules/core-js/internals/html.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");
var createElement = __webpack_require__(/*! ../internals/document-create-element */ "./node_modules/core-js/internals/document-create-element.js");
var validateArgumentsLength = __webpack_require__(/*! ../internals/validate-arguments-length */ "./node_modules/core-js/internals/validate-arguments-length.js");
var IS_IOS = __webpack_require__(/*! ../internals/engine-is-ios */ "./node_modules/core-js/internals/engine-is-ios.js");
var IS_NODE = __webpack_require__(/*! ../internals/engine-is-node */ "./node_modules/core-js/internals/engine-is-node.js");

var set = global.setImmediate;
var clear = global.clearImmediate;
var process = global.process;
var Dispatch = global.Dispatch;
var Function = global.Function;
var MessageChannel = global.MessageChannel;
var String = global.String;
var counter = 0;
var queue = {};
var ONREADYSTATECHANGE = 'onreadystatechange';
var location, defer, channel, port;

try {
  // Deno throws a ReferenceError on `location` access without `--location` flag
  location = global.location;
} catch (error) { /* empty */ }

var run = function (id) {
  if (hasOwn(queue, id)) {
    var fn = queue[id];
    delete queue[id];
    fn();
  }
};

var runner = function (id) {
  return function () {
    run(id);
  };
};

var listener = function (event) {
  run(event.data);
};

var post = function (id) {
  // old engines have not location.origin
  global.postMessage(String(id), location.protocol + '//' + location.host);
};

// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
if (!set || !clear) {
  set = function setImmediate(handler) {
    validateArgumentsLength(arguments.length, 1);
    var fn = isCallable(handler) ? handler : Function(handler);
    var args = arraySlice(arguments, 1);
    queue[++counter] = function () {
      apply(fn, undefined, args);
    };
    defer(counter);
    return counter;
  };
  clear = function clearImmediate(id) {
    delete queue[id];
  };
  // Node.js 0.8-
  if (IS_NODE) {
    defer = function (id) {
      process.nextTick(runner(id));
    };
  // Sphere (JS game engine) Dispatch API
  } else if (Dispatch && Dispatch.now) {
    defer = function (id) {
      Dispatch.now(runner(id));
    };
  // Browsers with MessageChannel, includes WebWorkers
  // except iOS - https://github.com/zloirock/core-js/issues/624
  } else if (MessageChannel && !IS_IOS) {
    channel = new MessageChannel();
    port = channel.port2;
    channel.port1.onmessage = listener;
    defer = bind(port.postMessage, port);
  // Browsers with postMessage, skip WebWorkers
  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
  } else if (
    global.addEventListener &&
    isCallable(global.postMessage) &&
    !global.importScripts &&
    location && location.protocol !== 'file:' &&
    !fails(post)
  ) {
    defer = post;
    global.addEventListener('message', listener, false);
  // IE8-
  } else if (ONREADYSTATECHANGE in createElement('script')) {
    defer = function (id) {
      html.appendChild(createElement('script'))[ONREADYSTATECHANGE] = function () {
        html.removeChild(this);
        run(id);
      };
    };
  // Rest old browsers
  } else {
    defer = function (id) {
      setTimeout(runner(id), 0);
    };
  }
}

module.exports = {
  set: set,
  clear: clear
};


/***/ }),

/***/ "./node_modules/core-js/internals/this-number-value.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/this-number-value.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

// `thisNumberValue` abstract operation
// https://tc39.es/ecma262/#sec-thisnumbervalue
module.exports = uncurryThis(1.0.valueOf);


/***/ }),

/***/ "./node_modules/core-js/internals/to-absolute-index.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/to-absolute-index.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");

var max = Math.max;
var min = Math.min;

// Helper for a popular repeating case of the spec:
// Let integer be ? ToInteger(index).
// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).
module.exports = function (index, length) {
  var integer = toIntegerOrInfinity(index);
  return integer < 0 ? max(integer + length, 0) : min(integer, length);
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-index.js":
/*!****************************************************!*\
  !*** ./node_modules/core-js/internals/to-index.js ***!
  \****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");

var RangeError = global.RangeError;

// `ToIndex` abstract operation
// https://tc39.es/ecma262/#sec-toindex
module.exports = function (it) {
  if (it === undefined) return 0;
  var number = toIntegerOrInfinity(it);
  var length = toLength(number);
  if (number !== length) throw RangeError('Wrong length or index');
  return length;
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-indexed-object.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/to-indexed-object.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

// toObject with fallback for non-array-like ES3 strings
var IndexedObject = __webpack_require__(/*! ../internals/indexed-object */ "./node_modules/core-js/internals/indexed-object.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");

module.exports = function (it) {
  return IndexedObject(requireObjectCoercible(it));
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-integer-or-infinity.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/internals/to-integer-or-infinity.js ***!
  \******************************************************************/
/***/ ((module) => {

var ceil = Math.ceil;
var floor = Math.floor;

// `ToIntegerOrInfinity` abstract operation
// https://tc39.es/ecma262/#sec-tointegerorinfinity
module.exports = function (argument) {
  var number = +argument;
  // eslint-disable-next-line no-self-compare -- safe
  return number !== number || number === 0 ? 0 : (number > 0 ? floor : ceil)(number);
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-length.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/to-length.js ***!
  \*****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");

var min = Math.min;

// `ToLength` abstract operation
// https://tc39.es/ecma262/#sec-tolength
module.exports = function (argument) {
  return argument > 0 ? min(toIntegerOrInfinity(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-object.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/to-object.js ***!
  \*****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");

var Object = global.Object;

// `ToObject` abstract operation
// https://tc39.es/ecma262/#sec-toobject
module.exports = function (argument) {
  return Object(requireObjectCoercible(argument));
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-offset.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/to-offset.js ***!
  \*****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var toPositiveInteger = __webpack_require__(/*! ../internals/to-positive-integer */ "./node_modules/core-js/internals/to-positive-integer.js");

var RangeError = global.RangeError;

module.exports = function (it, BYTES) {
  var offset = toPositiveInteger(it);
  if (offset % BYTES) throw RangeError('Wrong offset');
  return offset;
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-positive-integer.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/internals/to-positive-integer.js ***!
  \***************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");

var RangeError = global.RangeError;

module.exports = function (it) {
  var result = toIntegerOrInfinity(it);
  if (result < 0) throw RangeError("The argument can't be less than 0");
  return result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-primitive.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/internals/to-primitive.js ***!
  \********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var isSymbol = __webpack_require__(/*! ../internals/is-symbol */ "./node_modules/core-js/internals/is-symbol.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var ordinaryToPrimitive = __webpack_require__(/*! ../internals/ordinary-to-primitive */ "./node_modules/core-js/internals/ordinary-to-primitive.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var TypeError = global.TypeError;
var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');

// `ToPrimitive` abstract operation
// https://tc39.es/ecma262/#sec-toprimitive
module.exports = function (input, pref) {
  if (!isObject(input) || isSymbol(input)) return input;
  var exoticToPrim = getMethod(input, TO_PRIMITIVE);
  var result;
  if (exoticToPrim) {
    if (pref === undefined) pref = 'default';
    result = call(exoticToPrim, input, pref);
    if (!isObject(result) || isSymbol(result)) return result;
    throw TypeError("Can't convert object to primitive value");
  }
  if (pref === undefined) pref = 'number';
  return ordinaryToPrimitive(input, pref);
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-property-key.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/internals/to-property-key.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var toPrimitive = __webpack_require__(/*! ../internals/to-primitive */ "./node_modules/core-js/internals/to-primitive.js");
var isSymbol = __webpack_require__(/*! ../internals/is-symbol */ "./node_modules/core-js/internals/is-symbol.js");

// `ToPropertyKey` abstract operation
// https://tc39.es/ecma262/#sec-topropertykey
module.exports = function (argument) {
  var key = toPrimitive(argument, 'string');
  return isSymbol(key) ? key : key + '';
};


/***/ }),

/***/ "./node_modules/core-js/internals/to-string-tag-support.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/internals/to-string-tag-support.js ***!
  \*****************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var test = {};

test[TO_STRING_TAG] = 'z';

module.exports = String(test) === '[object z]';


/***/ }),

/***/ "./node_modules/core-js/internals/to-string.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/internals/to-string.js ***!
  \*****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var classof = __webpack_require__(/*! ../internals/classof */ "./node_modules/core-js/internals/classof.js");

var String = global.String;

module.exports = function (argument) {
  if (classof(argument) === 'Symbol') throw TypeError('Cannot convert a Symbol value to a string');
  return String(argument);
};


/***/ }),

/***/ "./node_modules/core-js/internals/try-node-require.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/try-node-require.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var IS_NODE = __webpack_require__(/*! ../internals/engine-is-node */ "./node_modules/core-js/internals/engine-is-node.js");

module.exports = function (name) {
  try {
    // eslint-disable-next-line no-new-func -- safe
    if (IS_NODE) return Function('return require("' + name + '")')();
  } catch (error) { /* empty */ }
};


/***/ }),

/***/ "./node_modules/core-js/internals/try-to-string.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/internals/try-to-string.js ***!
  \*********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

var String = global.String;

module.exports = function (argument) {
  try {
    return String(argument);
  } catch (error) {
    return 'Object';
  }
};


/***/ }),

/***/ "./node_modules/core-js/internals/typed-array-constructor.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/internals/typed-array-constructor.js ***!
  \*******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS = __webpack_require__(/*! ../internals/typed-array-constructors-require-wrappers */ "./node_modules/core-js/internals/typed-array-constructors-require-wrappers.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var ArrayBufferModule = __webpack_require__(/*! ../internals/array-buffer */ "./node_modules/core-js/internals/array-buffer.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var isIntegralNumber = __webpack_require__(/*! ../internals/is-integral-number */ "./node_modules/core-js/internals/is-integral-number.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toIndex = __webpack_require__(/*! ../internals/to-index */ "./node_modules/core-js/internals/to-index.js");
var toOffset = __webpack_require__(/*! ../internals/to-offset */ "./node_modules/core-js/internals/to-offset.js");
var toPropertyKey = __webpack_require__(/*! ../internals/to-property-key */ "./node_modules/core-js/internals/to-property-key.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var classof = __webpack_require__(/*! ../internals/classof */ "./node_modules/core-js/internals/classof.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var isSymbol = __webpack_require__(/*! ../internals/is-symbol */ "./node_modules/core-js/internals/is-symbol.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var setPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");
var getOwnPropertyNames = (__webpack_require__(/*! ../internals/object-get-own-property-names */ "./node_modules/core-js/internals/object-get-own-property-names.js").f);
var typedArrayFrom = __webpack_require__(/*! ../internals/typed-array-from */ "./node_modules/core-js/internals/typed-array-from.js");
var forEach = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").forEach);
var setSpecies = __webpack_require__(/*! ../internals/set-species */ "./node_modules/core-js/internals/set-species.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var getOwnPropertyDescriptorModule = __webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var inheritIfRequired = __webpack_require__(/*! ../internals/inherit-if-required */ "./node_modules/core-js/internals/inherit-if-required.js");

var getInternalState = InternalStateModule.get;
var setInternalState = InternalStateModule.set;
var nativeDefineProperty = definePropertyModule.f;
var nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
var round = Math.round;
var RangeError = global.RangeError;
var ArrayBuffer = ArrayBufferModule.ArrayBuffer;
var ArrayBufferPrototype = ArrayBuffer.prototype;
var DataView = ArrayBufferModule.DataView;
var NATIVE_ARRAY_BUFFER_VIEWS = ArrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
var TYPED_ARRAY_CONSTRUCTOR = ArrayBufferViewCore.TYPED_ARRAY_CONSTRUCTOR;
var TYPED_ARRAY_TAG = ArrayBufferViewCore.TYPED_ARRAY_TAG;
var TypedArray = ArrayBufferViewCore.TypedArray;
var TypedArrayPrototype = ArrayBufferViewCore.TypedArrayPrototype;
var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
var isTypedArray = ArrayBufferViewCore.isTypedArray;
var BYTES_PER_ELEMENT = 'BYTES_PER_ELEMENT';
var WRONG_LENGTH = 'Wrong length';

var fromList = function (C, list) {
  aTypedArrayConstructor(C);
  var index = 0;
  var length = list.length;
  var result = new C(length);
  while (length > index) result[index] = list[index++];
  return result;
};

var addGetter = function (it, key) {
  nativeDefineProperty(it, key, { get: function () {
    return getInternalState(this)[key];
  } });
};

var isArrayBuffer = function (it) {
  var klass;
  return isPrototypeOf(ArrayBufferPrototype, it) || (klass = classof(it)) == 'ArrayBuffer' || klass == 'SharedArrayBuffer';
};

var isTypedArrayIndex = function (target, key) {
  return isTypedArray(target)
    && !isSymbol(key)
    && key in target
    && isIntegralNumber(+key)
    && key >= 0;
};

var wrappedGetOwnPropertyDescriptor = function getOwnPropertyDescriptor(target, key) {
  key = toPropertyKey(key);
  return isTypedArrayIndex(target, key)
    ? createPropertyDescriptor(2, target[key])
    : nativeGetOwnPropertyDescriptor(target, key);
};

var wrappedDefineProperty = function defineProperty(target, key, descriptor) {
  key = toPropertyKey(key);
  if (isTypedArrayIndex(target, key)
    && isObject(descriptor)
    && hasOwn(descriptor, 'value')
    && !hasOwn(descriptor, 'get')
    && !hasOwn(descriptor, 'set')
    // TODO: add validation descriptor w/o calling accessors
    && !descriptor.configurable
    && (!hasOwn(descriptor, 'writable') || descriptor.writable)
    && (!hasOwn(descriptor, 'enumerable') || descriptor.enumerable)
  ) {
    target[key] = descriptor.value;
    return target;
  } return nativeDefineProperty(target, key, descriptor);
};

if (DESCRIPTORS) {
  if (!NATIVE_ARRAY_BUFFER_VIEWS) {
    getOwnPropertyDescriptorModule.f = wrappedGetOwnPropertyDescriptor;
    definePropertyModule.f = wrappedDefineProperty;
    addGetter(TypedArrayPrototype, 'buffer');
    addGetter(TypedArrayPrototype, 'byteOffset');
    addGetter(TypedArrayPrototype, 'byteLength');
    addGetter(TypedArrayPrototype, 'length');
  }

  $({ target: 'Object', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS }, {
    getOwnPropertyDescriptor: wrappedGetOwnPropertyDescriptor,
    defineProperty: wrappedDefineProperty
  });

  module.exports = function (TYPE, wrapper, CLAMPED) {
    var BYTES = TYPE.match(/\d+$/)[0] / 8;
    var CONSTRUCTOR_NAME = TYPE + (CLAMPED ? 'Clamped' : '') + 'Array';
    var GETTER = 'get' + TYPE;
    var SETTER = 'set' + TYPE;
    var NativeTypedArrayConstructor = global[CONSTRUCTOR_NAME];
    var TypedArrayConstructor = NativeTypedArrayConstructor;
    var TypedArrayConstructorPrototype = TypedArrayConstructor && TypedArrayConstructor.prototype;
    var exported = {};

    var getter = function (that, index) {
      var data = getInternalState(that);
      return data.view[GETTER](index * BYTES + data.byteOffset, true);
    };

    var setter = function (that, index, value) {
      var data = getInternalState(that);
      if (CLAMPED) value = (value = round(value)) < 0 ? 0 : value > 0xFF ? 0xFF : value & 0xFF;
      data.view[SETTER](index * BYTES + data.byteOffset, value, true);
    };

    var addElement = function (that, index) {
      nativeDefineProperty(that, index, {
        get: function () {
          return getter(this, index);
        },
        set: function (value) {
          return setter(this, index, value);
        },
        enumerable: true
      });
    };

    if (!NATIVE_ARRAY_BUFFER_VIEWS) {
      TypedArrayConstructor = wrapper(function (that, data, offset, $length) {
        anInstance(that, TypedArrayConstructorPrototype);
        var index = 0;
        var byteOffset = 0;
        var buffer, byteLength, length;
        if (!isObject(data)) {
          length = toIndex(data);
          byteLength = length * BYTES;
          buffer = new ArrayBuffer(byteLength);
        } else if (isArrayBuffer(data)) {
          buffer = data;
          byteOffset = toOffset(offset, BYTES);
          var $len = data.byteLength;
          if ($length === undefined) {
            if ($len % BYTES) throw RangeError(WRONG_LENGTH);
            byteLength = $len - byteOffset;
            if (byteLength < 0) throw RangeError(WRONG_LENGTH);
          } else {
            byteLength = toLength($length) * BYTES;
            if (byteLength + byteOffset > $len) throw RangeError(WRONG_LENGTH);
          }
          length = byteLength / BYTES;
        } else if (isTypedArray(data)) {
          return fromList(TypedArrayConstructor, data);
        } else {
          return call(typedArrayFrom, TypedArrayConstructor, data);
        }
        setInternalState(that, {
          buffer: buffer,
          byteOffset: byteOffset,
          byteLength: byteLength,
          length: length,
          view: new DataView(buffer)
        });
        while (index < length) addElement(that, index++);
      });

      if (setPrototypeOf) setPrototypeOf(TypedArrayConstructor, TypedArray);
      TypedArrayConstructorPrototype = TypedArrayConstructor.prototype = create(TypedArrayPrototype);
    } else if (TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS) {
      TypedArrayConstructor = wrapper(function (dummy, data, typedArrayOffset, $length) {
        anInstance(dummy, TypedArrayConstructorPrototype);
        return inheritIfRequired(function () {
          if (!isObject(data)) return new NativeTypedArrayConstructor(toIndex(data));
          if (isArrayBuffer(data)) return $length !== undefined
            ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES), $length)
            : typedArrayOffset !== undefined
              ? new NativeTypedArrayConstructor(data, toOffset(typedArrayOffset, BYTES))
              : new NativeTypedArrayConstructor(data);
          if (isTypedArray(data)) return fromList(TypedArrayConstructor, data);
          return call(typedArrayFrom, TypedArrayConstructor, data);
        }(), dummy, TypedArrayConstructor);
      });

      if (setPrototypeOf) setPrototypeOf(TypedArrayConstructor, TypedArray);
      forEach(getOwnPropertyNames(NativeTypedArrayConstructor), function (key) {
        if (!(key in TypedArrayConstructor)) {
          createNonEnumerableProperty(TypedArrayConstructor, key, NativeTypedArrayConstructor[key]);
        }
      });
      TypedArrayConstructor.prototype = TypedArrayConstructorPrototype;
    }

    if (TypedArrayConstructorPrototype.constructor !== TypedArrayConstructor) {
      createNonEnumerableProperty(TypedArrayConstructorPrototype, 'constructor', TypedArrayConstructor);
    }

    createNonEnumerableProperty(TypedArrayConstructorPrototype, TYPED_ARRAY_CONSTRUCTOR, TypedArrayConstructor);

    if (TYPED_ARRAY_TAG) {
      createNonEnumerableProperty(TypedArrayConstructorPrototype, TYPED_ARRAY_TAG, CONSTRUCTOR_NAME);
    }

    exported[CONSTRUCTOR_NAME] = TypedArrayConstructor;

    $({
      global: true, forced: TypedArrayConstructor != NativeTypedArrayConstructor, sham: !NATIVE_ARRAY_BUFFER_VIEWS
    }, exported);

    if (!(BYTES_PER_ELEMENT in TypedArrayConstructor)) {
      createNonEnumerableProperty(TypedArrayConstructor, BYTES_PER_ELEMENT, BYTES);
    }

    if (!(BYTES_PER_ELEMENT in TypedArrayConstructorPrototype)) {
      createNonEnumerableProperty(TypedArrayConstructorPrototype, BYTES_PER_ELEMENT, BYTES);
    }

    setSpecies(CONSTRUCTOR_NAME);
  };
} else module.exports = function () { /* empty */ };


/***/ }),

/***/ "./node_modules/core-js/internals/typed-array-constructors-require-wrappers.js":
/*!*************************************************************************************!*\
  !*** ./node_modules/core-js/internals/typed-array-constructors-require-wrappers.js ***!
  \*************************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

/* eslint-disable no-new -- required for testing */
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var checkCorrectnessOfIteration = __webpack_require__(/*! ../internals/check-correctness-of-iteration */ "./node_modules/core-js/internals/check-correctness-of-iteration.js");
var NATIVE_ARRAY_BUFFER_VIEWS = (__webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js").NATIVE_ARRAY_BUFFER_VIEWS);

var ArrayBuffer = global.ArrayBuffer;
var Int8Array = global.Int8Array;

module.exports = !NATIVE_ARRAY_BUFFER_VIEWS || !fails(function () {
  Int8Array(1);
}) || !fails(function () {
  new Int8Array(-1);
}) || !checkCorrectnessOfIteration(function (iterable) {
  new Int8Array();
  new Int8Array(null);
  new Int8Array(1.5);
  new Int8Array(iterable);
}, true) || fails(function () {
  // Safari (11+) bug - a reason why even Safari 13 should load a typed array polyfill
  return new Int8Array(new ArrayBuffer(2), 1, undefined).length !== 1;
});


/***/ }),

/***/ "./node_modules/core-js/internals/typed-array-from-species-and-list.js":
/*!*****************************************************************************!*\
  !*** ./node_modules/core-js/internals/typed-array-from-species-and-list.js ***!
  \*****************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var arrayFromConstructorAndList = __webpack_require__(/*! ../internals/array-from-constructor-and-list */ "./node_modules/core-js/internals/array-from-constructor-and-list.js");
var typedArraySpeciesConstructor = __webpack_require__(/*! ../internals/typed-array-species-constructor */ "./node_modules/core-js/internals/typed-array-species-constructor.js");

module.exports = function (instance, list) {
  return arrayFromConstructorAndList(typedArraySpeciesConstructor(instance), list);
};


/***/ }),

/***/ "./node_modules/core-js/internals/typed-array-from.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/internals/typed-array-from.js ***!
  \************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aConstructor = __webpack_require__(/*! ../internals/a-constructor */ "./node_modules/core-js/internals/a-constructor.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var getIteratorMethod = __webpack_require__(/*! ../internals/get-iterator-method */ "./node_modules/core-js/internals/get-iterator-method.js");
var isArrayIteratorMethod = __webpack_require__(/*! ../internals/is-array-iterator-method */ "./node_modules/core-js/internals/is-array-iterator-method.js");
var aTypedArrayConstructor = (__webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js").aTypedArrayConstructor);

module.exports = function from(source /* , mapfn, thisArg */) {
  var C = aConstructor(this);
  var O = toObject(source);
  var argumentsLength = arguments.length;
  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
  var mapping = mapfn !== undefined;
  var iteratorMethod = getIteratorMethod(O);
  var i, length, result, step, iterator, next;
  if (iteratorMethod && !isArrayIteratorMethod(iteratorMethod)) {
    iterator = getIterator(O, iteratorMethod);
    next = iterator.next;
    O = [];
    while (!(step = call(next, iterator)).done) {
      O.push(step.value);
    }
  }
  if (mapping && argumentsLength > 2) {
    mapfn = bind(mapfn, arguments[2]);
  }
  length = lengthOfArrayLike(O);
  result = new (aTypedArrayConstructor(C))(length);
  for (i = 0; length > i; i++) {
    result[i] = mapping ? mapfn(O[i], i) : O[i];
  }
  return result;
};


/***/ }),

/***/ "./node_modules/core-js/internals/typed-array-species-constructor.js":
/*!***************************************************************************!*\
  !*** ./node_modules/core-js/internals/typed-array-species-constructor.js ***!
  \***************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");

var TYPED_ARRAY_CONSTRUCTOR = ArrayBufferViewCore.TYPED_ARRAY_CONSTRUCTOR;
var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;

// a part of `TypedArraySpeciesCreate` abstract operation
// https://tc39.es/ecma262/#typedarray-species-create
module.exports = function (originalArray) {
  return aTypedArrayConstructor(speciesConstructor(originalArray, originalArray[TYPED_ARRAY_CONSTRUCTOR]));
};


/***/ }),

/***/ "./node_modules/core-js/internals/uid.js":
/*!***********************************************!*\
  !*** ./node_modules/core-js/internals/uid.js ***!
  \***********************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

var id = 0;
var postfix = Math.random();
var toString = uncurryThis(1.0.toString);

module.exports = function (key) {
  return 'Symbol(' + (key === undefined ? '' : key) + ')_' + toString(++id + postfix, 36);
};


/***/ }),

/***/ "./node_modules/core-js/internals/use-symbol-as-uid.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/use-symbol-as-uid.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

/* eslint-disable es/no-symbol -- required for testing */
var NATIVE_SYMBOL = __webpack_require__(/*! ../internals/native-symbol */ "./node_modules/core-js/internals/native-symbol.js");

module.exports = NATIVE_SYMBOL
  && !Symbol.sham
  && typeof Symbol.iterator == 'symbol';


/***/ }),

/***/ "./node_modules/core-js/internals/v8-prototype-define-bug.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/internals/v8-prototype-define-bug.js ***!
  \*******************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

// V8 ~ Chrome 36-
// https://bugs.chromium.org/p/v8/issues/detail?id=3334
module.exports = DESCRIPTORS && fails(function () {
  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
  return Object.defineProperty(function () { /* empty */ }, 'prototype', {
    value: 42,
    writable: false
  }).prototype != 42;
});


/***/ }),

/***/ "./node_modules/core-js/internals/validate-arguments-length.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/internals/validate-arguments-length.js ***!
  \*********************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

var TypeError = global.TypeError;

module.exports = function (passed, required) {
  if (passed < required) throw TypeError('Not enough arguments');
  return passed;
};


/***/ }),

/***/ "./node_modules/core-js/internals/well-known-symbol-wrapped.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/internals/well-known-symbol-wrapped.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

exports.f = wellKnownSymbol;


/***/ }),

/***/ "./node_modules/core-js/internals/well-known-symbol.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/internals/well-known-symbol.js ***!
  \*************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var shared = __webpack_require__(/*! ../internals/shared */ "./node_modules/core-js/internals/shared.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var uid = __webpack_require__(/*! ../internals/uid */ "./node_modules/core-js/internals/uid.js");
var NATIVE_SYMBOL = __webpack_require__(/*! ../internals/native-symbol */ "./node_modules/core-js/internals/native-symbol.js");
var USE_SYMBOL_AS_UID = __webpack_require__(/*! ../internals/use-symbol-as-uid */ "./node_modules/core-js/internals/use-symbol-as-uid.js");

var WellKnownSymbolsStore = shared('wks');
var Symbol = global.Symbol;
var symbolFor = Symbol && Symbol['for'];
var createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol : Symbol && Symbol.withoutSetter || uid;

module.exports = function (name) {
  if (!hasOwn(WellKnownSymbolsStore, name) || !(NATIVE_SYMBOL || typeof WellKnownSymbolsStore[name] == 'string')) {
    var description = 'Symbol.' + name;
    if (NATIVE_SYMBOL && hasOwn(Symbol, name)) {
      WellKnownSymbolsStore[name] = Symbol[name];
    } else if (USE_SYMBOL_AS_UID && symbolFor) {
      WellKnownSymbolsStore[name] = symbolFor(description);
    } else {
      WellKnownSymbolsStore[name] = createWellKnownSymbol(description);
    }
  } return WellKnownSymbolsStore[name];
};


/***/ }),

/***/ "./node_modules/core-js/internals/whitespaces.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/internals/whitespaces.js ***!
  \*******************************************************/
/***/ ((module) => {

// a string of all valid unicode whitespaces
module.exports = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u2000\u2001\u2002' +
  '\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';


/***/ }),

/***/ "./node_modules/core-js/internals/wrap-error-constructor-with-cause.js":
/*!*****************************************************************************!*\
  !*** ./node_modules/core-js/internals/wrap-error-constructor-with-cause.js ***!
  \*****************************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var setPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");
var copyConstructorProperties = __webpack_require__(/*! ../internals/copy-constructor-properties */ "./node_modules/core-js/internals/copy-constructor-properties.js");
var inheritIfRequired = __webpack_require__(/*! ../internals/inherit-if-required */ "./node_modules/core-js/internals/inherit-if-required.js");
var normalizeStringArgument = __webpack_require__(/*! ../internals/normalize-string-argument */ "./node_modules/core-js/internals/normalize-string-argument.js");
var installErrorCause = __webpack_require__(/*! ../internals/install-error-cause */ "./node_modules/core-js/internals/install-error-cause.js");
var clearErrorStack = __webpack_require__(/*! ../internals/clear-error-stack */ "./node_modules/core-js/internals/clear-error-stack.js");
var ERROR_STACK_INSTALLABLE = __webpack_require__(/*! ../internals/error-stack-installable */ "./node_modules/core-js/internals/error-stack-installable.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

module.exports = function (FULL_NAME, wrapper, FORCED, IS_AGGREGATE_ERROR) {
  var OPTIONS_POSITION = IS_AGGREGATE_ERROR ? 2 : 1;
  var path = FULL_NAME.split('.');
  var ERROR_NAME = path[path.length - 1];
  var OriginalError = getBuiltIn.apply(null, path);

  if (!OriginalError) return;

  var OriginalErrorPrototype = OriginalError.prototype;

  // V8 9.3- bug https://bugs.chromium.org/p/v8/issues/detail?id=12006
  if (!IS_PURE && hasOwn(OriginalErrorPrototype, 'cause')) delete OriginalErrorPrototype.cause;

  if (!FORCED) return OriginalError;

  var BaseError = getBuiltIn('Error');

  var WrappedError = wrapper(function (a, b) {
    var message = normalizeStringArgument(IS_AGGREGATE_ERROR ? b : a, undefined);
    var result = IS_AGGREGATE_ERROR ? new OriginalError(a) : new OriginalError();
    if (message !== undefined) createNonEnumerableProperty(result, 'message', message);
    if (ERROR_STACK_INSTALLABLE) createNonEnumerableProperty(result, 'stack', clearErrorStack(result.stack, 2));
    if (this && isPrototypeOf(OriginalErrorPrototype, this)) inheritIfRequired(result, this, WrappedError);
    if (arguments.length > OPTIONS_POSITION) installErrorCause(result, arguments[OPTIONS_POSITION]);
    return result;
  });

  WrappedError.prototype = OriginalErrorPrototype;

  if (ERROR_NAME !== 'Error') {
    if (setPrototypeOf) setPrototypeOf(WrappedError, BaseError);
    else copyConstructorProperties(WrappedError, BaseError, { name: true });
  }

  copyConstructorProperties(WrappedError, OriginalError);

  if (!IS_PURE) try {
    // Safari 13- bug: WebAssembly errors does not have a proper `.name`
    if (OriginalErrorPrototype.name !== ERROR_NAME) {
      createNonEnumerableProperty(OriginalErrorPrototype, 'name', ERROR_NAME);
    }
    OriginalErrorPrototype.constructor = WrappedError;
  } catch (error) { /* empty */ }

  return WrappedError;
};


/***/ }),

/***/ "./node_modules/core-js/modules/es.aggregate-error.cause.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.aggregate-error.cause.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var wrapErrorConstructorWithCause = __webpack_require__(/*! ../internals/wrap-error-constructor-with-cause */ "./node_modules/core-js/internals/wrap-error-constructor-with-cause.js");

var AGGREGATE_ERROR = 'AggregateError';
var $AggregateError = getBuiltIn(AGGREGATE_ERROR);
var FORCED = !fails(function () {
  return $AggregateError([1]).errors[0] !== 1;
}) && fails(function () {
  return $AggregateError([1], AGGREGATE_ERROR, { cause: 7 }).cause !== 7;
});

// https://github.com/tc39/proposal-error-cause
$({ global: true, forced: FORCED }, {
  AggregateError: wrapErrorConstructorWithCause(AGGREGATE_ERROR, function (init) {
    // eslint-disable-next-line no-unused-vars -- required for functions `.length`
    return function AggregateError(errors, message) { return apply(init, this, arguments); };
  }, FORCED, true)
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.aggregate-error.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.aggregate-error.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var setPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");
var copyConstructorProperties = __webpack_require__(/*! ../internals/copy-constructor-properties */ "./node_modules/core-js/internals/copy-constructor-properties.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");
var clearErrorStack = __webpack_require__(/*! ../internals/clear-error-stack */ "./node_modules/core-js/internals/clear-error-stack.js");
var installErrorCause = __webpack_require__(/*! ../internals/install-error-cause */ "./node_modules/core-js/internals/install-error-cause.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var normalizeStringArgument = __webpack_require__(/*! ../internals/normalize-string-argument */ "./node_modules/core-js/internals/normalize-string-argument.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var ERROR_STACK_INSTALLABLE = __webpack_require__(/*! ../internals/error-stack-installable */ "./node_modules/core-js/internals/error-stack-installable.js");

var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var Error = global.Error;
var push = [].push;

var $AggregateError = function AggregateError(errors, message /* , options */) {
  var options = arguments.length > 2 ? arguments[2] : undefined;
  var isInstance = isPrototypeOf(AggregateErrorPrototype, this);
  var that;
  if (setPrototypeOf) {
    that = setPrototypeOf(new Error(), isInstance ? getPrototypeOf(this) : AggregateErrorPrototype);
  } else {
    that = isInstance ? this : create(AggregateErrorPrototype);
    createNonEnumerableProperty(that, TO_STRING_TAG, 'Error');
  }
  if (message !== undefined) createNonEnumerableProperty(that, 'message', normalizeStringArgument(message));
  if (ERROR_STACK_INSTALLABLE) createNonEnumerableProperty(that, 'stack', clearErrorStack(that.stack, 1));
  installErrorCause(that, options);
  var errorsArray = [];
  iterate(errors, push, { that: errorsArray });
  createNonEnumerableProperty(that, 'errors', errorsArray);
  return that;
};

if (setPrototypeOf) setPrototypeOf($AggregateError, Error);
else copyConstructorProperties($AggregateError, Error, { name: true });

var AggregateErrorPrototype = $AggregateError.prototype = create(Error.prototype, {
  constructor: createPropertyDescriptor(1, $AggregateError),
  message: createPropertyDescriptor(1, ''),
  name: createPropertyDescriptor(1, 'AggregateError')
});

// `AggregateError` constructor
// https://tc39.es/ecma262/#sec-aggregate-error-constructor
$({ global: true }, {
  AggregateError: $AggregateError
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array-buffer.constructor.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.array-buffer.constructor.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var arrayBufferModule = __webpack_require__(/*! ../internals/array-buffer */ "./node_modules/core-js/internals/array-buffer.js");
var setSpecies = __webpack_require__(/*! ../internals/set-species */ "./node_modules/core-js/internals/set-species.js");

var ARRAY_BUFFER = 'ArrayBuffer';
var ArrayBuffer = arrayBufferModule[ARRAY_BUFFER];
var NativeArrayBuffer = global[ARRAY_BUFFER];

// `ArrayBuffer` constructor
// https://tc39.es/ecma262/#sec-arraybuffer-constructor
$({ global: true, forced: NativeArrayBuffer !== ArrayBuffer }, {
  ArrayBuffer: ArrayBuffer
});

setSpecies(ARRAY_BUFFER);


/***/ }),

/***/ "./node_modules/core-js/modules/es.array-buffer.is-view.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.array-buffer.is-view.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");

var NATIVE_ARRAY_BUFFER_VIEWS = ArrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;

// `ArrayBuffer.isView` method
// https://tc39.es/ecma262/#sec-arraybuffer.isview
$({ target: 'ArrayBuffer', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS }, {
  isView: ArrayBufferViewCore.isView
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array-buffer.slice.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.array-buffer.slice.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var ArrayBufferModule = __webpack_require__(/*! ../internals/array-buffer */ "./node_modules/core-js/internals/array-buffer.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");

var ArrayBuffer = ArrayBufferModule.ArrayBuffer;
var DataView = ArrayBufferModule.DataView;
var DataViewPrototype = DataView.prototype;
var un$ArrayBufferSlice = uncurryThis(ArrayBuffer.prototype.slice);
var getUint8 = uncurryThis(DataViewPrototype.getUint8);
var setUint8 = uncurryThis(DataViewPrototype.setUint8);

var INCORRECT_SLICE = fails(function () {
  return !new ArrayBuffer(2).slice(1, undefined).byteLength;
});

// `ArrayBuffer.prototype.slice` method
// https://tc39.es/ecma262/#sec-arraybuffer.prototype.slice
$({ target: 'ArrayBuffer', proto: true, unsafe: true, forced: INCORRECT_SLICE }, {
  slice: function slice(start, end) {
    if (un$ArrayBufferSlice && end === undefined) {
      return un$ArrayBufferSlice(anObject(this), start); // FF fix
    }
    var length = anObject(this).byteLength;
    var first = toAbsoluteIndex(start, length);
    var fin = toAbsoluteIndex(end === undefined ? length : end, length);
    var result = new (speciesConstructor(this, ArrayBuffer))(toLength(fin - first));
    var viewSource = new DataView(this);
    var viewTarget = new DataView(result);
    var index = 0;
    while (first < fin) {
      setUint8(viewTarget, index++, getUint8(viewSource, first++));
    } return result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.at.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.at.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// `Array.prototype.at` method
// https://github.com/tc39/proposal-relative-indexing-method
$({ target: 'Array', proto: true }, {
  at: function at(index) {
    var O = toObject(this);
    var len = lengthOfArrayLike(O);
    var relativeIndex = toIntegerOrInfinity(index);
    var k = relativeIndex >= 0 ? relativeIndex : len + relativeIndex;
    return (k < 0 || k >= len) ? undefined : O[k];
  }
});

addToUnscopables('at');


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.concat.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.concat.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var isArray = __webpack_require__(/*! ../internals/is-array */ "./node_modules/core-js/internals/is-array.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var createProperty = __webpack_require__(/*! ../internals/create-property */ "./node_modules/core-js/internals/create-property.js");
var arraySpeciesCreate = __webpack_require__(/*! ../internals/array-species-create */ "./node_modules/core-js/internals/array-species-create.js");
var arrayMethodHasSpeciesSupport = __webpack_require__(/*! ../internals/array-method-has-species-support */ "./node_modules/core-js/internals/array-method-has-species-support.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var V8_VERSION = __webpack_require__(/*! ../internals/engine-v8-version */ "./node_modules/core-js/internals/engine-v8-version.js");

var IS_CONCAT_SPREADABLE = wellKnownSymbol('isConcatSpreadable');
var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
var MAXIMUM_ALLOWED_INDEX_EXCEEDED = 'Maximum allowed index exceeded';
var TypeError = global.TypeError;

// We can't use this feature detection in V8 since it causes
// deoptimization and serious performance degradation
// https://github.com/zloirock/core-js/issues/679
var IS_CONCAT_SPREADABLE_SUPPORT = V8_VERSION >= 51 || !fails(function () {
  var array = [];
  array[IS_CONCAT_SPREADABLE] = false;
  return array.concat()[0] !== array;
});

var SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('concat');

var isConcatSpreadable = function (O) {
  if (!isObject(O)) return false;
  var spreadable = O[IS_CONCAT_SPREADABLE];
  return spreadable !== undefined ? !!spreadable : isArray(O);
};

var FORCED = !IS_CONCAT_SPREADABLE_SUPPORT || !SPECIES_SUPPORT;

// `Array.prototype.concat` method
// https://tc39.es/ecma262/#sec-array.prototype.concat
// with adding support of @@isConcatSpreadable and @@species
$({ target: 'Array', proto: true, forced: FORCED }, {
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  concat: function concat(arg) {
    var O = toObject(this);
    var A = arraySpeciesCreate(O, 0);
    var n = 0;
    var i, k, length, len, E;
    for (i = -1, length = arguments.length; i < length; i++) {
      E = i === -1 ? O : arguments[i];
      if (isConcatSpreadable(E)) {
        len = lengthOfArrayLike(E);
        if (n + len > MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);
        for (k = 0; k < len; k++, n++) if (k in E) createProperty(A, n, E[k]);
      } else {
        if (n >= MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);
        createProperty(A, n++, E);
      }
    }
    A.length = n;
    return A;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.copy-within.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.copy-within.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var copyWithin = __webpack_require__(/*! ../internals/array-copy-within */ "./node_modules/core-js/internals/array-copy-within.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// `Array.prototype.copyWithin` method
// https://tc39.es/ecma262/#sec-array.prototype.copywithin
$({ target: 'Array', proto: true }, {
  copyWithin: copyWithin
});

// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('copyWithin');


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.every.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.every.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $every = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").every);
var arrayMethodIsStrict = __webpack_require__(/*! ../internals/array-method-is-strict */ "./node_modules/core-js/internals/array-method-is-strict.js");

var STRICT_METHOD = arrayMethodIsStrict('every');

// `Array.prototype.every` method
// https://tc39.es/ecma262/#sec-array.prototype.every
$({ target: 'Array', proto: true, forced: !STRICT_METHOD }, {
  every: function every(callbackfn /* , thisArg */) {
    return $every(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.fill.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.fill.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fill = __webpack_require__(/*! ../internals/array-fill */ "./node_modules/core-js/internals/array-fill.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// `Array.prototype.fill` method
// https://tc39.es/ecma262/#sec-array.prototype.fill
$({ target: 'Array', proto: true }, {
  fill: fill
});

// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('fill');


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.filter.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.filter.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $filter = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").filter);
var arrayMethodHasSpeciesSupport = __webpack_require__(/*! ../internals/array-method-has-species-support */ "./node_modules/core-js/internals/array-method-has-species-support.js");

var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('filter');

// `Array.prototype.filter` method
// https://tc39.es/ecma262/#sec-array.prototype.filter
// with adding support of @@species
$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
  filter: function filter(callbackfn /* , thisArg */) {
    return $filter(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.find-index.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.find-index.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $findIndex = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").findIndex);
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

var FIND_INDEX = 'findIndex';
var SKIPS_HOLES = true;

// Shouldn't skip holes
if (FIND_INDEX in []) Array(1)[FIND_INDEX](function () { SKIPS_HOLES = false; });

// `Array.prototype.findIndex` method
// https://tc39.es/ecma262/#sec-array.prototype.findindex
$({ target: 'Array', proto: true, forced: SKIPS_HOLES }, {
  findIndex: function findIndex(callbackfn /* , that = undefined */) {
    return $findIndex(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables(FIND_INDEX);


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.find.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.find.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $find = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").find);
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

var FIND = 'find';
var SKIPS_HOLES = true;

// Shouldn't skip holes
if (FIND in []) Array(1)[FIND](function () { SKIPS_HOLES = false; });

// `Array.prototype.find` method
// https://tc39.es/ecma262/#sec-array.prototype.find
$({ target: 'Array', proto: true, forced: SKIPS_HOLES }, {
  find: function find(callbackfn /* , that = undefined */) {
    return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables(FIND);


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.flat-map.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.flat-map.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var flattenIntoArray = __webpack_require__(/*! ../internals/flatten-into-array */ "./node_modules/core-js/internals/flatten-into-array.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var arraySpeciesCreate = __webpack_require__(/*! ../internals/array-species-create */ "./node_modules/core-js/internals/array-species-create.js");

// `Array.prototype.flatMap` method
// https://tc39.es/ecma262/#sec-array.prototype.flatmap
$({ target: 'Array', proto: true }, {
  flatMap: function flatMap(callbackfn /* , thisArg */) {
    var O = toObject(this);
    var sourceLen = lengthOfArrayLike(O);
    var A;
    aCallable(callbackfn);
    A = arraySpeciesCreate(O, 0);
    A.length = flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    return A;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.flat.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.flat.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var flattenIntoArray = __webpack_require__(/*! ../internals/flatten-into-array */ "./node_modules/core-js/internals/flatten-into-array.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var arraySpeciesCreate = __webpack_require__(/*! ../internals/array-species-create */ "./node_modules/core-js/internals/array-species-create.js");

// `Array.prototype.flat` method
// https://tc39.es/ecma262/#sec-array.prototype.flat
$({ target: 'Array', proto: true }, {
  flat: function flat(/* depthArg = 1 */) {
    var depthArg = arguments.length ? arguments[0] : undefined;
    var O = toObject(this);
    var sourceLen = lengthOfArrayLike(O);
    var A = arraySpeciesCreate(O, 0);
    A.length = flattenIntoArray(A, O, O, sourceLen, 0, depthArg === undefined ? 1 : toIntegerOrInfinity(depthArg));
    return A;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.for-each.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.for-each.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var forEach = __webpack_require__(/*! ../internals/array-for-each */ "./node_modules/core-js/internals/array-for-each.js");

// `Array.prototype.forEach` method
// https://tc39.es/ecma262/#sec-array.prototype.foreach
// eslint-disable-next-line es/no-array-prototype-foreach -- safe
$({ target: 'Array', proto: true, forced: [].forEach != forEach }, {
  forEach: forEach
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.from.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.from.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var from = __webpack_require__(/*! ../internals/array-from */ "./node_modules/core-js/internals/array-from.js");
var checkCorrectnessOfIteration = __webpack_require__(/*! ../internals/check-correctness-of-iteration */ "./node_modules/core-js/internals/check-correctness-of-iteration.js");

var INCORRECT_ITERATION = !checkCorrectnessOfIteration(function (iterable) {
  // eslint-disable-next-line es/no-array-from -- required for testing
  Array.from(iterable);
});

// `Array.from` method
// https://tc39.es/ecma262/#sec-array.from
$({ target: 'Array', stat: true, forced: INCORRECT_ITERATION }, {
  from: from
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.includes.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.includes.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $includes = (__webpack_require__(/*! ../internals/array-includes */ "./node_modules/core-js/internals/array-includes.js").includes);
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// `Array.prototype.includes` method
// https://tc39.es/ecma262/#sec-array.prototype.includes
$({ target: 'Array', proto: true }, {
  includes: function includes(el /* , fromIndex = 0 */) {
    return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
  }
});

// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('includes');


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.index-of.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.index-of.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

/* eslint-disable es/no-array-prototype-indexof -- required for testing */
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var $IndexOf = (__webpack_require__(/*! ../internals/array-includes */ "./node_modules/core-js/internals/array-includes.js").indexOf);
var arrayMethodIsStrict = __webpack_require__(/*! ../internals/array-method-is-strict */ "./node_modules/core-js/internals/array-method-is-strict.js");

var un$IndexOf = uncurryThis([].indexOf);

var NEGATIVE_ZERO = !!un$IndexOf && 1 / un$IndexOf([1], 1, -0) < 0;
var STRICT_METHOD = arrayMethodIsStrict('indexOf');

// `Array.prototype.indexOf` method
// https://tc39.es/ecma262/#sec-array.prototype.indexof
$({ target: 'Array', proto: true, forced: NEGATIVE_ZERO || !STRICT_METHOD }, {
  indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {
    var fromIndex = arguments.length > 1 ? arguments[1] : undefined;
    return NEGATIVE_ZERO
      // convert -0 to +0
      ? un$IndexOf(this, searchElement, fromIndex) || 0
      : $IndexOf(this, searchElement, fromIndex);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.is-array.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.is-array.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var isArray = __webpack_require__(/*! ../internals/is-array */ "./node_modules/core-js/internals/is-array.js");

// `Array.isArray` method
// https://tc39.es/ecma262/#sec-array.isarray
$({ target: 'Array', stat: true }, {
  isArray: isArray
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.iterator.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.iterator.js ***!
  \***********************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");
var Iterators = __webpack_require__(/*! ../internals/iterators */ "./node_modules/core-js/internals/iterators.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var defineIterator = __webpack_require__(/*! ../internals/define-iterator */ "./node_modules/core-js/internals/define-iterator.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");

var ARRAY_ITERATOR = 'Array Iterator';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(ARRAY_ITERATOR);

// `Array.prototype.entries` method
// https://tc39.es/ecma262/#sec-array.prototype.entries
// `Array.prototype.keys` method
// https://tc39.es/ecma262/#sec-array.prototype.keys
// `Array.prototype.values` method
// https://tc39.es/ecma262/#sec-array.prototype.values
// `Array.prototype[@@iterator]` method
// https://tc39.es/ecma262/#sec-array.prototype-@@iterator
// `CreateArrayIterator` internal method
// https://tc39.es/ecma262/#sec-createarrayiterator
module.exports = defineIterator(Array, 'Array', function (iterated, kind) {
  setInternalState(this, {
    type: ARRAY_ITERATOR,
    target: toIndexedObject(iterated), // target
    index: 0,                          // next index
    kind: kind                         // kind
  });
// `%ArrayIteratorPrototype%.next` method
// https://tc39.es/ecma262/#sec-%arrayiteratorprototype%.next
}, function () {
  var state = getInternalState(this);
  var target = state.target;
  var kind = state.kind;
  var index = state.index++;
  if (!target || index >= target.length) {
    state.target = undefined;
    return { value: undefined, done: true };
  }
  if (kind == 'keys') return { value: index, done: false };
  if (kind == 'values') return { value: target[index], done: false };
  return { value: [index, target[index]], done: false };
}, 'values');

// argumentsList[@@iterator] is %ArrayProto_values%
// https://tc39.es/ecma262/#sec-createunmappedargumentsobject
// https://tc39.es/ecma262/#sec-createmappedargumentsobject
var values = Iterators.Arguments = Iterators.Array;

// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('keys');
addToUnscopables('values');
addToUnscopables('entries');

// V8 ~ Chrome 45- bug
if (!IS_PURE && DESCRIPTORS && values.name !== 'values') try {
  defineProperty(values, 'name', { value: 'values' });
} catch (error) { /* empty */ }


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.join.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.join.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var IndexedObject = __webpack_require__(/*! ../internals/indexed-object */ "./node_modules/core-js/internals/indexed-object.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var arrayMethodIsStrict = __webpack_require__(/*! ../internals/array-method-is-strict */ "./node_modules/core-js/internals/array-method-is-strict.js");

var un$Join = uncurryThis([].join);

var ES3_STRINGS = IndexedObject != Object;
var STRICT_METHOD = arrayMethodIsStrict('join', ',');

// `Array.prototype.join` method
// https://tc39.es/ecma262/#sec-array.prototype.join
$({ target: 'Array', proto: true, forced: ES3_STRINGS || !STRICT_METHOD }, {
  join: function join(separator) {
    return un$Join(toIndexedObject(this), separator === undefined ? ',' : separator);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.last-index-of.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.last-index-of.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var lastIndexOf = __webpack_require__(/*! ../internals/array-last-index-of */ "./node_modules/core-js/internals/array-last-index-of.js");

// `Array.prototype.lastIndexOf` method
// https://tc39.es/ecma262/#sec-array.prototype.lastindexof
// eslint-disable-next-line es/no-array-prototype-lastindexof -- required for testing
$({ target: 'Array', proto: true, forced: lastIndexOf !== [].lastIndexOf }, {
  lastIndexOf: lastIndexOf
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.map.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.map.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $map = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").map);
var arrayMethodHasSpeciesSupport = __webpack_require__(/*! ../internals/array-method-has-species-support */ "./node_modules/core-js/internals/array-method-has-species-support.js");

var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');

// `Array.prototype.map` method
// https://tc39.es/ecma262/#sec-array.prototype.map
// with adding support of @@species
$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
  map: function map(callbackfn /* , thisArg */) {
    return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.of.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.of.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var isConstructor = __webpack_require__(/*! ../internals/is-constructor */ "./node_modules/core-js/internals/is-constructor.js");
var createProperty = __webpack_require__(/*! ../internals/create-property */ "./node_modules/core-js/internals/create-property.js");

var Array = global.Array;

var ISNT_GENERIC = fails(function () {
  function F() { /* empty */ }
  return !(Array.of.call(F) instanceof F);
});

// `Array.of` method
// https://tc39.es/ecma262/#sec-array.of
// WebKit Array.of isn't generic
$({ target: 'Array', stat: true, forced: ISNT_GENERIC }, {
  of: function of(/* ...args */) {
    var index = 0;
    var argumentsLength = arguments.length;
    var result = new (isConstructor(this) ? this : Array)(argumentsLength);
    while (argumentsLength > index) createProperty(result, index, arguments[index++]);
    result.length = argumentsLength;
    return result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.reduce-right.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.reduce-right.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $reduceRight = (__webpack_require__(/*! ../internals/array-reduce */ "./node_modules/core-js/internals/array-reduce.js").right);
var arrayMethodIsStrict = __webpack_require__(/*! ../internals/array-method-is-strict */ "./node_modules/core-js/internals/array-method-is-strict.js");
var CHROME_VERSION = __webpack_require__(/*! ../internals/engine-v8-version */ "./node_modules/core-js/internals/engine-v8-version.js");
var IS_NODE = __webpack_require__(/*! ../internals/engine-is-node */ "./node_modules/core-js/internals/engine-is-node.js");

var STRICT_METHOD = arrayMethodIsStrict('reduceRight');
// Chrome 80-82 has a critical bug
// https://bugs.chromium.org/p/chromium/issues/detail?id=1049982
var CHROME_BUG = !IS_NODE && CHROME_VERSION > 79 && CHROME_VERSION < 83;

// `Array.prototype.reduceRight` method
// https://tc39.es/ecma262/#sec-array.prototype.reduceright
$({ target: 'Array', proto: true, forced: !STRICT_METHOD || CHROME_BUG }, {
  reduceRight: function reduceRight(callbackfn /* , initialValue */) {
    return $reduceRight(this, callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.reduce.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.reduce.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $reduce = (__webpack_require__(/*! ../internals/array-reduce */ "./node_modules/core-js/internals/array-reduce.js").left);
var arrayMethodIsStrict = __webpack_require__(/*! ../internals/array-method-is-strict */ "./node_modules/core-js/internals/array-method-is-strict.js");
var CHROME_VERSION = __webpack_require__(/*! ../internals/engine-v8-version */ "./node_modules/core-js/internals/engine-v8-version.js");
var IS_NODE = __webpack_require__(/*! ../internals/engine-is-node */ "./node_modules/core-js/internals/engine-is-node.js");

var STRICT_METHOD = arrayMethodIsStrict('reduce');
// Chrome 80-82 has a critical bug
// https://bugs.chromium.org/p/chromium/issues/detail?id=1049982
var CHROME_BUG = !IS_NODE && CHROME_VERSION > 79 && CHROME_VERSION < 83;

// `Array.prototype.reduce` method
// https://tc39.es/ecma262/#sec-array.prototype.reduce
$({ target: 'Array', proto: true, forced: !STRICT_METHOD || CHROME_BUG }, {
  reduce: function reduce(callbackfn /* , initialValue */) {
    var length = arguments.length;
    return $reduce(this, callbackfn, length, length > 1 ? arguments[1] : undefined);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.reverse.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.reverse.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var isArray = __webpack_require__(/*! ../internals/is-array */ "./node_modules/core-js/internals/is-array.js");

var un$Reverse = uncurryThis([].reverse);
var test = [1, 2];

// `Array.prototype.reverse` method
// https://tc39.es/ecma262/#sec-array.prototype.reverse
// fix for Safari 12.0 bug
// https://bugs.webkit.org/show_bug.cgi?id=188794
$({ target: 'Array', proto: true, forced: String(test) === String(test.reverse()) }, {
  reverse: function reverse() {
    // eslint-disable-next-line no-self-assign -- dirty hack
    if (isArray(this)) this.length = this.length;
    return un$Reverse(this);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.slice.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.slice.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var isArray = __webpack_require__(/*! ../internals/is-array */ "./node_modules/core-js/internals/is-array.js");
var isConstructor = __webpack_require__(/*! ../internals/is-constructor */ "./node_modules/core-js/internals/is-constructor.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var createProperty = __webpack_require__(/*! ../internals/create-property */ "./node_modules/core-js/internals/create-property.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var arrayMethodHasSpeciesSupport = __webpack_require__(/*! ../internals/array-method-has-species-support */ "./node_modules/core-js/internals/array-method-has-species-support.js");
var un$Slice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");

var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('slice');

var SPECIES = wellKnownSymbol('species');
var Array = global.Array;
var max = Math.max;

// `Array.prototype.slice` method
// https://tc39.es/ecma262/#sec-array.prototype.slice
// fallback for not array-like ES3 strings and DOM objects
$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
  slice: function slice(start, end) {
    var O = toIndexedObject(this);
    var length = lengthOfArrayLike(O);
    var k = toAbsoluteIndex(start, length);
    var fin = toAbsoluteIndex(end === undefined ? length : end, length);
    // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible
    var Constructor, result, n;
    if (isArray(O)) {
      Constructor = O.constructor;
      // cross-realm fallback
      if (isConstructor(Constructor) && (Constructor === Array || isArray(Constructor.prototype))) {
        Constructor = undefined;
      } else if (isObject(Constructor)) {
        Constructor = Constructor[SPECIES];
        if (Constructor === null) Constructor = undefined;
      }
      if (Constructor === Array || Constructor === undefined) {
        return un$Slice(O, k, fin);
      }
    }
    result = new (Constructor === undefined ? Array : Constructor)(max(fin - k, 0));
    for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);
    result.length = n;
    return result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.some.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.some.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $some = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").some);
var arrayMethodIsStrict = __webpack_require__(/*! ../internals/array-method-is-strict */ "./node_modules/core-js/internals/array-method-is-strict.js");

var STRICT_METHOD = arrayMethodIsStrict('some');

// `Array.prototype.some` method
// https://tc39.es/ecma262/#sec-array.prototype.some
$({ target: 'Array', proto: true, forced: !STRICT_METHOD }, {
  some: function some(callbackfn /* , thisArg */) {
    return $some(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.sort.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.sort.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var internalSort = __webpack_require__(/*! ../internals/array-sort */ "./node_modules/core-js/internals/array-sort.js");
var arrayMethodIsStrict = __webpack_require__(/*! ../internals/array-method-is-strict */ "./node_modules/core-js/internals/array-method-is-strict.js");
var FF = __webpack_require__(/*! ../internals/engine-ff-version */ "./node_modules/core-js/internals/engine-ff-version.js");
var IE_OR_EDGE = __webpack_require__(/*! ../internals/engine-is-ie-or-edge */ "./node_modules/core-js/internals/engine-is-ie-or-edge.js");
var V8 = __webpack_require__(/*! ../internals/engine-v8-version */ "./node_modules/core-js/internals/engine-v8-version.js");
var WEBKIT = __webpack_require__(/*! ../internals/engine-webkit-version */ "./node_modules/core-js/internals/engine-webkit-version.js");

var test = [];
var un$Sort = uncurryThis(test.sort);
var push = uncurryThis(test.push);

// IE8-
var FAILS_ON_UNDEFINED = fails(function () {
  test.sort(undefined);
});
// V8 bug
var FAILS_ON_NULL = fails(function () {
  test.sort(null);
});
// Old WebKit
var STRICT_METHOD = arrayMethodIsStrict('sort');

var STABLE_SORT = !fails(function () {
  // feature detection can be too slow, so check engines versions
  if (V8) return V8 < 70;
  if (FF && FF > 3) return;
  if (IE_OR_EDGE) return true;
  if (WEBKIT) return WEBKIT < 603;

  var result = '';
  var code, chr, value, index;

  // generate an array with more 512 elements (Chakra and old V8 fails only in this case)
  for (code = 65; code < 76; code++) {
    chr = String.fromCharCode(code);

    switch (code) {
      case 66: case 69: case 70: case 72: value = 3; break;
      case 68: case 71: value = 4; break;
      default: value = 2;
    }

    for (index = 0; index < 47; index++) {
      test.push({ k: chr + index, v: value });
    }
  }

  test.sort(function (a, b) { return b.v - a.v; });

  for (index = 0; index < test.length; index++) {
    chr = test[index].k.charAt(0);
    if (result.charAt(result.length - 1) !== chr) result += chr;
  }

  return result !== 'DGBEFHACIJK';
});

var FORCED = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || !STRICT_METHOD || !STABLE_SORT;

var getSortCompare = function (comparefn) {
  return function (x, y) {
    if (y === undefined) return -1;
    if (x === undefined) return 1;
    if (comparefn !== undefined) return +comparefn(x, y) || 0;
    return toString(x) > toString(y) ? 1 : -1;
  };
};

// `Array.prototype.sort` method
// https://tc39.es/ecma262/#sec-array.prototype.sort
$({ target: 'Array', proto: true, forced: FORCED }, {
  sort: function sort(comparefn) {
    if (comparefn !== undefined) aCallable(comparefn);

    var array = toObject(this);

    if (STABLE_SORT) return comparefn === undefined ? un$Sort(array) : un$Sort(array, comparefn);

    var items = [];
    var arrayLength = lengthOfArrayLike(array);
    var itemsLength, index;

    for (index = 0; index < arrayLength; index++) {
      if (index in array) push(items, array[index]);
    }

    internalSort(items, getSortCompare(comparefn));

    itemsLength = items.length;
    index = 0;

    while (index < itemsLength) array[index] = items[index++];
    while (index < arrayLength) delete array[index++];

    return array;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.species.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.species.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var setSpecies = __webpack_require__(/*! ../internals/set-species */ "./node_modules/core-js/internals/set-species.js");

// `Array[@@species]` getter
// https://tc39.es/ecma262/#sec-get-array-@@species
setSpecies('Array');


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.splice.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.splice.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var arraySpeciesCreate = __webpack_require__(/*! ../internals/array-species-create */ "./node_modules/core-js/internals/array-species-create.js");
var createProperty = __webpack_require__(/*! ../internals/create-property */ "./node_modules/core-js/internals/create-property.js");
var arrayMethodHasSpeciesSupport = __webpack_require__(/*! ../internals/array-method-has-species-support */ "./node_modules/core-js/internals/array-method-has-species-support.js");

var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('splice');

var TypeError = global.TypeError;
var max = Math.max;
var min = Math.min;
var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
var MAXIMUM_ALLOWED_LENGTH_EXCEEDED = 'Maximum allowed length exceeded';

// `Array.prototype.splice` method
// https://tc39.es/ecma262/#sec-array.prototype.splice
// with adding support of @@species
$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
  splice: function splice(start, deleteCount /* , ...items */) {
    var O = toObject(this);
    var len = lengthOfArrayLike(O);
    var actualStart = toAbsoluteIndex(start, len);
    var argumentsLength = arguments.length;
    var insertCount, actualDeleteCount, A, k, from, to;
    if (argumentsLength === 0) {
      insertCount = actualDeleteCount = 0;
    } else if (argumentsLength === 1) {
      insertCount = 0;
      actualDeleteCount = len - actualStart;
    } else {
      insertCount = argumentsLength - 2;
      actualDeleteCount = min(max(toIntegerOrInfinity(deleteCount), 0), len - actualStart);
    }
    if (len + insertCount - actualDeleteCount > MAX_SAFE_INTEGER) {
      throw TypeError(MAXIMUM_ALLOWED_LENGTH_EXCEEDED);
    }
    A = arraySpeciesCreate(O, actualDeleteCount);
    for (k = 0; k < actualDeleteCount; k++) {
      from = actualStart + k;
      if (from in O) createProperty(A, k, O[from]);
    }
    A.length = actualDeleteCount;
    if (insertCount < actualDeleteCount) {
      for (k = actualStart; k < len - actualDeleteCount; k++) {
        from = k + actualDeleteCount;
        to = k + insertCount;
        if (from in O) O[to] = O[from];
        else delete O[to];
      }
      for (k = len; k > len - actualDeleteCount + insertCount; k--) delete O[k - 1];
    } else if (insertCount > actualDeleteCount) {
      for (k = len - actualDeleteCount; k > actualStart; k--) {
        from = k + actualDeleteCount - 1;
        to = k + insertCount - 1;
        if (from in O) O[to] = O[from];
        else delete O[to];
      }
    }
    for (k = 0; k < insertCount; k++) {
      O[k + actualStart] = arguments[k + 2];
    }
    O.length = len - actualDeleteCount + insertCount;
    return A;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.unscopables.flat-map.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.unscopables.flat-map.js ***!
  \***********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// this method was added to unscopables after implementation
// in popular engines, so it's moved to a separate module
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('flatMap');


/***/ }),

/***/ "./node_modules/core-js/modules/es.array.unscopables.flat.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.array.unscopables.flat.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// this method was added to unscopables after implementation
// in popular engines, so it's moved to a separate module
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('flat');


/***/ }),

/***/ "./node_modules/core-js/modules/es.data-view.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.data-view.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ArrayBufferModule = __webpack_require__(/*! ../internals/array-buffer */ "./node_modules/core-js/internals/array-buffer.js");
var NATIVE_ARRAY_BUFFER = __webpack_require__(/*! ../internals/array-buffer-native */ "./node_modules/core-js/internals/array-buffer-native.js");

// `DataView` constructor
// https://tc39.es/ecma262/#sec-dataview-constructor
$({ global: true, forced: !NATIVE_ARRAY_BUFFER }, {
  DataView: ArrayBufferModule.DataView
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.date.get-year.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.date.get-year.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var FORCED = fails(function () {
  return new Date(16e11).getYear() !== 120;
});

var getFullYear = uncurryThis(Date.prototype.getFullYear);

// `Date.prototype.getYear` method
// https://tc39.es/ecma262/#sec-date.prototype.getyear
$({ target: 'Date', proto: true, forced: FORCED }, {
  getYear: function getYear() {
    return getFullYear(this) - 1900;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.date.now.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/modules/es.date.now.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

var Date = global.Date;
var getTime = uncurryThis(Date.prototype.getTime);

// `Date.now` method
// https://tc39.es/ecma262/#sec-date.now
$({ target: 'Date', stat: true }, {
  now: function now() {
    return getTime(new Date());
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.date.set-year.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.date.set-year.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");

var DatePrototype = Date.prototype;
var getTime = uncurryThis(DatePrototype.getTime);
var setFullYear = uncurryThis(DatePrototype.setFullYear);

// `Date.prototype.setYear` method
// https://tc39.es/ecma262/#sec-date.prototype.setyear
$({ target: 'Date', proto: true }, {
  setYear: function setYear(year) {
    // validate
    getTime(this);
    var yi = toIntegerOrInfinity(year);
    var yyyy = 0 <= yi && yi <= 99 ? yi + 1900 : yi;
    return setFullYear(this, yyyy);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.date.to-gmt-string.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.date.to-gmt-string.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Date.prototype.toGMTString` method
// https://tc39.es/ecma262/#sec-date.prototype.togmtstring
$({ target: 'Date', proto: true }, {
  toGMTString: Date.prototype.toUTCString
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.date.to-iso-string.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.date.to-iso-string.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var toISOString = __webpack_require__(/*! ../internals/date-to-iso-string */ "./node_modules/core-js/internals/date-to-iso-string.js");

// `Date.prototype.toISOString` method
// https://tc39.es/ecma262/#sec-date.prototype.toisostring
// PhantomJS / old WebKit has a broken implementations
$({ target: 'Date', proto: true, forced: Date.prototype.toISOString !== toISOString }, {
  toISOString: toISOString
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.date.to-json.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.date.to-json.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var toPrimitive = __webpack_require__(/*! ../internals/to-primitive */ "./node_modules/core-js/internals/to-primitive.js");

var FORCED = fails(function () {
  return new Date(NaN).toJSON() !== null
    || Date.prototype.toJSON.call({ toISOString: function () { return 1; } }) !== 1;
});

// `Date.prototype.toJSON` method
// https://tc39.es/ecma262/#sec-date.prototype.tojson
$({ target: 'Date', proto: true, forced: FORCED }, {
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  toJSON: function toJSON(key) {
    var O = toObject(this);
    var pv = toPrimitive(O, 'number');
    return typeof pv == 'number' && !isFinite(pv) ? null : O.toISOString();
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.date.to-primitive.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/es.date.to-primitive.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var dateToPrimitive = __webpack_require__(/*! ../internals/date-to-primitive */ "./node_modules/core-js/internals/date-to-primitive.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
var DatePrototype = Date.prototype;

// `Date.prototype[@@toPrimitive]` method
// https://tc39.es/ecma262/#sec-date.prototype-@@toprimitive
if (!hasOwn(DatePrototype, TO_PRIMITIVE)) {
  redefine(DatePrototype, TO_PRIMITIVE, dateToPrimitive);
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.date.to-string.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.date.to-string.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");

var DatePrototype = Date.prototype;
var INVALID_DATE = 'Invalid Date';
var TO_STRING = 'toString';
var un$DateToString = uncurryThis(DatePrototype[TO_STRING]);
var getTime = uncurryThis(DatePrototype.getTime);

// `Date.prototype.toString` method
// https://tc39.es/ecma262/#sec-date.prototype.tostring
if (String(new Date(NaN)) != INVALID_DATE) {
  redefine(DatePrototype, TO_STRING, function toString() {
    var value = getTime(this);
    // eslint-disable-next-line no-self-compare -- NaN check
    return value === value ? un$DateToString(this) : INVALID_DATE;
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.error.cause.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.error.cause.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

/* eslint-disable no-unused-vars -- required for functions `.length` */
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var wrapErrorConstructorWithCause = __webpack_require__(/*! ../internals/wrap-error-constructor-with-cause */ "./node_modules/core-js/internals/wrap-error-constructor-with-cause.js");

var WEB_ASSEMBLY = 'WebAssembly';
var WebAssembly = global[WEB_ASSEMBLY];

var FORCED = Error('e', { cause: 7 }).cause !== 7;

var exportGlobalErrorCauseWrapper = function (ERROR_NAME, wrapper) {
  var O = {};
  O[ERROR_NAME] = wrapErrorConstructorWithCause(ERROR_NAME, wrapper, FORCED);
  $({ global: true, forced: FORCED }, O);
};

var exportWebAssemblyErrorCauseWrapper = function (ERROR_NAME, wrapper) {
  if (WebAssembly && WebAssembly[ERROR_NAME]) {
    var O = {};
    O[ERROR_NAME] = wrapErrorConstructorWithCause(WEB_ASSEMBLY + '.' + ERROR_NAME, wrapper, FORCED);
    $({ target: WEB_ASSEMBLY, stat: true, forced: FORCED }, O);
  }
};

// https://github.com/tc39/proposal-error-cause
exportGlobalErrorCauseWrapper('Error', function (init) {
  return function Error(message) { return apply(init, this, arguments); };
});
exportGlobalErrorCauseWrapper('EvalError', function (init) {
  return function EvalError(message) { return apply(init, this, arguments); };
});
exportGlobalErrorCauseWrapper('RangeError', function (init) {
  return function RangeError(message) { return apply(init, this, arguments); };
});
exportGlobalErrorCauseWrapper('ReferenceError', function (init) {
  return function ReferenceError(message) { return apply(init, this, arguments); };
});
exportGlobalErrorCauseWrapper('SyntaxError', function (init) {
  return function SyntaxError(message) { return apply(init, this, arguments); };
});
exportGlobalErrorCauseWrapper('TypeError', function (init) {
  return function TypeError(message) { return apply(init, this, arguments); };
});
exportGlobalErrorCauseWrapper('URIError', function (init) {
  return function URIError(message) { return apply(init, this, arguments); };
});
exportWebAssemblyErrorCauseWrapper('CompileError', function (init) {
  return function CompileError(message) { return apply(init, this, arguments); };
});
exportWebAssemblyErrorCauseWrapper('LinkError', function (init) {
  return function LinkError(message) { return apply(init, this, arguments); };
});
exportWebAssemblyErrorCauseWrapper('RuntimeError', function (init) {
  return function RuntimeError(message) { return apply(init, this, arguments); };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.error.to-string.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.error.to-string.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var errorToString = __webpack_require__(/*! ../internals/error-to-string */ "./node_modules/core-js/internals/error-to-string.js");

var ErrorPrototype = Error.prototype;

// `Error.prototype.toString` method fix
// https://tc39.es/ecma262/#sec-error.prototype.tostring
if (ErrorPrototype.toString !== errorToString) {
  redefine(ErrorPrototype, 'toString', errorToString);
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.escape.js":
/*!***************************************************!*\
  !*** ./node_modules/core-js/modules/es.escape.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");

var charAt = uncurryThis(''.charAt);
var charCodeAt = uncurryThis(''.charCodeAt);
var exec = uncurryThis(/./.exec);
var numberToString = uncurryThis(1.0.toString);
var toUpperCase = uncurryThis(''.toUpperCase);

var raw = /[\w*+\-./@]/;

var hex = function (code, length) {
  var result = numberToString(code, 16);
  while (result.length < length) result = '0' + result;
  return result;
};

// `escape` method
// https://tc39.es/ecma262/#sec-escape-string
$({ global: true }, {
  escape: function escape(string) {
    var str = toString(string);
    var result = '';
    var length = str.length;
    var index = 0;
    var chr, code;
    while (index < length) {
      chr = charAt(str, index++);
      if (exec(raw, chr)) {
        result += chr;
      } else {
        code = charCodeAt(chr, 0);
        if (code < 256) {
          result += '%' + hex(code, 2);
        } else {
          result += '%u' + toUpperCase(hex(code, 4));
        }
      }
    } return result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.function.bind.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.function.bind.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var bind = __webpack_require__(/*! ../internals/function-bind */ "./node_modules/core-js/internals/function-bind.js");

// `Function.prototype.bind` method
// https://tc39.es/ecma262/#sec-function.prototype.bind
$({ target: 'Function', proto: true, forced: Function.bind !== bind }, {
  bind: bind
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.function.has-instance.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.function.has-instance.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var HAS_INSTANCE = wellKnownSymbol('hasInstance');
var FunctionPrototype = Function.prototype;

// `Function.prototype[@@hasInstance]` method
// https://tc39.es/ecma262/#sec-function.prototype-@@hasinstance
if (!(HAS_INSTANCE in FunctionPrototype)) {
  definePropertyModule.f(FunctionPrototype, HAS_INSTANCE, { value: function (O) {
    if (!isCallable(this) || !isObject(O)) return false;
    var P = this.prototype;
    if (!isObject(P)) return O instanceof this;
    // for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:
    while (O = getPrototypeOf(O)) if (P === O) return true;
    return false;
  } });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.function.name.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.function.name.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var FUNCTION_NAME_EXISTS = (__webpack_require__(/*! ../internals/function-name */ "./node_modules/core-js/internals/function-name.js").EXISTS);
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);

var FunctionPrototype = Function.prototype;
var functionToString = uncurryThis(FunctionPrototype.toString);
var nameRE = /function\b(?:\s|\/\*[\S\s]*?\*\/|\/\/[^\n\r]*[\n\r]+)*([^\s(/]*)/;
var regExpExec = uncurryThis(nameRE.exec);
var NAME = 'name';

// Function instances `.name` property
// https://tc39.es/ecma262/#sec-function-instances-name
if (DESCRIPTORS && !FUNCTION_NAME_EXISTS) {
  defineProperty(FunctionPrototype, NAME, {
    configurable: true,
    get: function () {
      try {
        return regExpExec(nameRE, functionToString(this))[1];
      } catch (error) {
        return '';
      }
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.global-this.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.global-this.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");

// `globalThis` object
// https://tc39.es/ecma262/#sec-globalthis
$({ global: true }, {
  globalThis: global
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.json.stringify.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.json.stringify.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var Array = global.Array;
var $stringify = getBuiltIn('JSON', 'stringify');
var exec = uncurryThis(/./.exec);
var charAt = uncurryThis(''.charAt);
var charCodeAt = uncurryThis(''.charCodeAt);
var replace = uncurryThis(''.replace);
var numberToString = uncurryThis(1.0.toString);

var tester = /[\uD800-\uDFFF]/g;
var low = /^[\uD800-\uDBFF]$/;
var hi = /^[\uDC00-\uDFFF]$/;

var fix = function (match, offset, string) {
  var prev = charAt(string, offset - 1);
  var next = charAt(string, offset + 1);
  if ((exec(low, match) && !exec(hi, next)) || (exec(hi, match) && !exec(low, prev))) {
    return '\\u' + numberToString(charCodeAt(match, 0), 16);
  } return match;
};

var FORCED = fails(function () {
  return $stringify('\uDF06\uD834') !== '"\\udf06\\ud834"'
    || $stringify('\uDEAD') !== '"\\udead"';
});

if ($stringify) {
  // `JSON.stringify` method
  // https://tc39.es/ecma262/#sec-json.stringify
  // https://github.com/tc39/proposal-well-formed-stringify
  $({ target: 'JSON', stat: true, forced: FORCED }, {
    // eslint-disable-next-line no-unused-vars -- required for `.length`
    stringify: function stringify(it, replacer, space) {
      for (var i = 0, l = arguments.length, args = Array(l); i < l; i++) args[i] = arguments[i];
      var result = apply($stringify, null, args);
      return typeof result == 'string' ? replace(result, tester, fix) : result;
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.json.to-string-tag.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.json.to-string-tag.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");

// JSON[@@toStringTag] property
// https://tc39.es/ecma262/#sec-json-@@tostringtag
setToStringTag(global.JSON, 'JSON', true);


/***/ }),

/***/ "./node_modules/core-js/modules/es.map.js":
/*!************************************************!*\
  !*** ./node_modules/core-js/modules/es.map.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var collection = __webpack_require__(/*! ../internals/collection */ "./node_modules/core-js/internals/collection.js");
var collectionStrong = __webpack_require__(/*! ../internals/collection-strong */ "./node_modules/core-js/internals/collection-strong.js");

// `Map` constructor
// https://tc39.es/ecma262/#sec-map-objects
collection('Map', function (init) {
  return function Map() { return init(this, arguments.length ? arguments[0] : undefined); };
}, collectionStrong);


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.acosh.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.acosh.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var log1p = __webpack_require__(/*! ../internals/math-log1p */ "./node_modules/core-js/internals/math-log1p.js");

// eslint-disable-next-line es/no-math-acosh -- required for testing
var $acosh = Math.acosh;
var log = Math.log;
var sqrt = Math.sqrt;
var LN2 = Math.LN2;

var FORCED = !$acosh
  // V8 bug: https://code.google.com/p/v8/issues/detail?id=3509
  || Math.floor($acosh(Number.MAX_VALUE)) != 710
  // Tor Browser bug: Math.acosh(Infinity) -> NaN
  || $acosh(Infinity) != Infinity;

// `Math.acosh` method
// https://tc39.es/ecma262/#sec-math.acosh
$({ target: 'Math', stat: true, forced: FORCED }, {
  acosh: function acosh(x) {
    return (x = +x) < 1 ? NaN : x > 94906265.62425156
      ? log(x) + LN2
      : log1p(x - 1 + sqrt(x - 1) * sqrt(x + 1));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.asinh.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.asinh.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// eslint-disable-next-line es/no-math-asinh -- required for testing
var $asinh = Math.asinh;
var log = Math.log;
var sqrt = Math.sqrt;

function asinh(x) {
  return !isFinite(x = +x) || x == 0 ? x : x < 0 ? -asinh(-x) : log(x + sqrt(x * x + 1));
}

// `Math.asinh` method
// https://tc39.es/ecma262/#sec-math.asinh
// Tor Browser bug: Math.asinh(0) -> -0
$({ target: 'Math', stat: true, forced: !($asinh && 1 / $asinh(0) > 0) }, {
  asinh: asinh
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.atanh.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.atanh.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// eslint-disable-next-line es/no-math-atanh -- required for testing
var $atanh = Math.atanh;
var log = Math.log;

// `Math.atanh` method
// https://tc39.es/ecma262/#sec-math.atanh
// Tor Browser bug: Math.atanh(-0) -> 0
$({ target: 'Math', stat: true, forced: !($atanh && 1 / $atanh(-0) < 0) }, {
  atanh: function atanh(x) {
    return (x = +x) == 0 ? x : log((1 + x) / (1 - x)) / 2;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.cbrt.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.cbrt.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var sign = __webpack_require__(/*! ../internals/math-sign */ "./node_modules/core-js/internals/math-sign.js");

var abs = Math.abs;
var pow = Math.pow;

// `Math.cbrt` method
// https://tc39.es/ecma262/#sec-math.cbrt
$({ target: 'Math', stat: true }, {
  cbrt: function cbrt(x) {
    return sign(x = +x) * pow(abs(x), 1 / 3);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.clz32.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.clz32.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

var floor = Math.floor;
var log = Math.log;
var LOG2E = Math.LOG2E;

// `Math.clz32` method
// https://tc39.es/ecma262/#sec-math.clz32
$({ target: 'Math', stat: true }, {
  clz32: function clz32(x) {
    return (x >>>= 0) ? 31 - floor(log(x + 0.5) * LOG2E) : 32;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.cosh.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.cosh.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var expm1 = __webpack_require__(/*! ../internals/math-expm1 */ "./node_modules/core-js/internals/math-expm1.js");

// eslint-disable-next-line es/no-math-cosh -- required for testing
var $cosh = Math.cosh;
var abs = Math.abs;
var E = Math.E;

// `Math.cosh` method
// https://tc39.es/ecma262/#sec-math.cosh
$({ target: 'Math', stat: true, forced: !$cosh || $cosh(710) === Infinity }, {
  cosh: function cosh(x) {
    var t = expm1(abs(x) - 1) + 1;
    return (t + 1 / (t * E * E)) * (E / 2);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.expm1.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.expm1.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var expm1 = __webpack_require__(/*! ../internals/math-expm1 */ "./node_modules/core-js/internals/math-expm1.js");

// `Math.expm1` method
// https://tc39.es/ecma262/#sec-math.expm1
// eslint-disable-next-line es/no-math-expm1 -- required for testing
$({ target: 'Math', stat: true, forced: expm1 != Math.expm1 }, { expm1: expm1 });


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.fround.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.fround.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fround = __webpack_require__(/*! ../internals/math-fround */ "./node_modules/core-js/internals/math-fround.js");

// `Math.fround` method
// https://tc39.es/ecma262/#sec-math.fround
$({ target: 'Math', stat: true }, { fround: fround });


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.hypot.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.hypot.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// eslint-disable-next-line es/no-math-hypot -- required for testing
var $hypot = Math.hypot;
var abs = Math.abs;
var sqrt = Math.sqrt;

// Chrome 77 bug
// https://bugs.chromium.org/p/v8/issues/detail?id=9546
var BUGGY = !!$hypot && $hypot(Infinity, NaN) !== Infinity;

// `Math.hypot` method
// https://tc39.es/ecma262/#sec-math.hypot
$({ target: 'Math', stat: true, forced: BUGGY }, {
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  hypot: function hypot(value1, value2) {
    var sum = 0;
    var i = 0;
    var aLen = arguments.length;
    var larg = 0;
    var arg, div;
    while (i < aLen) {
      arg = abs(arguments[i++]);
      if (larg < arg) {
        div = larg / arg;
        sum = sum * div * div + 1;
        larg = arg;
      } else if (arg > 0) {
        div = arg / larg;
        sum += div * div;
      } else sum += arg;
    }
    return larg === Infinity ? Infinity : larg * sqrt(sum);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.imul.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.imul.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

// eslint-disable-next-line es/no-math-imul -- required for testing
var $imul = Math.imul;

var FORCED = fails(function () {
  return $imul(0xFFFFFFFF, 5) != -5 || $imul.length != 2;
});

// `Math.imul` method
// https://tc39.es/ecma262/#sec-math.imul
// some WebKit versions fails with big numbers, some has wrong arity
$({ target: 'Math', stat: true, forced: FORCED }, {
  imul: function imul(x, y) {
    var UINT16 = 0xFFFF;
    var xn = +x;
    var yn = +y;
    var xl = UINT16 & xn;
    var yl = UINT16 & yn;
    return 0 | xl * yl + ((UINT16 & xn >>> 16) * yl + xl * (UINT16 & yn >>> 16) << 16 >>> 0);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.log10.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.log10.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var log10 = __webpack_require__(/*! ../internals/math-log10 */ "./node_modules/core-js/internals/math-log10.js");

// `Math.log10` method
// https://tc39.es/ecma262/#sec-math.log10
$({ target: 'Math', stat: true }, {
  log10: log10
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.log1p.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.log1p.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var log1p = __webpack_require__(/*! ../internals/math-log1p */ "./node_modules/core-js/internals/math-log1p.js");

// `Math.log1p` method
// https://tc39.es/ecma262/#sec-math.log1p
$({ target: 'Math', stat: true }, { log1p: log1p });


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.log2.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.log2.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

var log = Math.log;
var LN2 = Math.LN2;

// `Math.log2` method
// https://tc39.es/ecma262/#sec-math.log2
$({ target: 'Math', stat: true }, {
  log2: function log2(x) {
    return log(x) / LN2;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.sign.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.sign.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var sign = __webpack_require__(/*! ../internals/math-sign */ "./node_modules/core-js/internals/math-sign.js");

// `Math.sign` method
// https://tc39.es/ecma262/#sec-math.sign
$({ target: 'Math', stat: true }, {
  sign: sign
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.sinh.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.sinh.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var expm1 = __webpack_require__(/*! ../internals/math-expm1 */ "./node_modules/core-js/internals/math-expm1.js");

var abs = Math.abs;
var exp = Math.exp;
var E = Math.E;

var FORCED = fails(function () {
  // eslint-disable-next-line es/no-math-sinh -- required for testing
  return Math.sinh(-2e-17) != -2e-17;
});

// `Math.sinh` method
// https://tc39.es/ecma262/#sec-math.sinh
// V8 near Chromium 38 has a problem with very small numbers
$({ target: 'Math', stat: true, forced: FORCED }, {
  sinh: function sinh(x) {
    return abs(x = +x) < 1 ? (expm1(x) - expm1(-x)) / 2 : (exp(x - 1) - exp(-x - 1)) * (E / 2);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.tanh.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.tanh.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var expm1 = __webpack_require__(/*! ../internals/math-expm1 */ "./node_modules/core-js/internals/math-expm1.js");

var exp = Math.exp;

// `Math.tanh` method
// https://tc39.es/ecma262/#sec-math.tanh
$({ target: 'Math', stat: true }, {
  tanh: function tanh(x) {
    var a = expm1(x = +x);
    var b = expm1(-x);
    return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(x) + exp(-x));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.to-string-tag.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.to-string-tag.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");

// Math[@@toStringTag] property
// https://tc39.es/ecma262/#sec-math-@@tostringtag
setToStringTag(Math, 'Math', true);


/***/ }),

/***/ "./node_modules/core-js/modules/es.math.trunc.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.math.trunc.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

var ceil = Math.ceil;
var floor = Math.floor;

// `Math.trunc` method
// https://tc39.es/ecma262/#sec-math.trunc
$({ target: 'Math', stat: true }, {
  trunc: function trunc(it) {
    return (it > 0 ? floor : ceil)(it);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.constructor.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.constructor.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var isForced = __webpack_require__(/*! ../internals/is-forced */ "./node_modules/core-js/internals/is-forced.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var inheritIfRequired = __webpack_require__(/*! ../internals/inherit-if-required */ "./node_modules/core-js/internals/inherit-if-required.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var isSymbol = __webpack_require__(/*! ../internals/is-symbol */ "./node_modules/core-js/internals/is-symbol.js");
var toPrimitive = __webpack_require__(/*! ../internals/to-primitive */ "./node_modules/core-js/internals/to-primitive.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var getOwnPropertyNames = (__webpack_require__(/*! ../internals/object-get-own-property-names */ "./node_modules/core-js/internals/object-get-own-property-names.js").f);
var getOwnPropertyDescriptor = (__webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js").f);
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var thisNumberValue = __webpack_require__(/*! ../internals/this-number-value */ "./node_modules/core-js/internals/this-number-value.js");
var trim = (__webpack_require__(/*! ../internals/string-trim */ "./node_modules/core-js/internals/string-trim.js").trim);

var NUMBER = 'Number';
var NativeNumber = global[NUMBER];
var NumberPrototype = NativeNumber.prototype;
var TypeError = global.TypeError;
var arraySlice = uncurryThis(''.slice);
var charCodeAt = uncurryThis(''.charCodeAt);

// `ToNumeric` abstract operation
// https://tc39.es/ecma262/#sec-tonumeric
var toNumeric = function (value) {
  var primValue = toPrimitive(value, 'number');
  return typeof primValue == 'bigint' ? primValue : toNumber(primValue);
};

// `ToNumber` abstract operation
// https://tc39.es/ecma262/#sec-tonumber
var toNumber = function (argument) {
  var it = toPrimitive(argument, 'number');
  var first, third, radix, maxCode, digits, length, index, code;
  if (isSymbol(it)) throw TypeError('Cannot convert a Symbol value to a number');
  if (typeof it == 'string' && it.length > 2) {
    it = trim(it);
    first = charCodeAt(it, 0);
    if (first === 43 || first === 45) {
      third = charCodeAt(it, 2);
      if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix
    } else if (first === 48) {
      switch (charCodeAt(it, 1)) {
        case 66: case 98: radix = 2; maxCode = 49; break; // fast equal of /^0b[01]+$/i
        case 79: case 111: radix = 8; maxCode = 55; break; // fast equal of /^0o[0-7]+$/i
        default: return +it;
      }
      digits = arraySlice(it, 2);
      length = digits.length;
      for (index = 0; index < length; index++) {
        code = charCodeAt(digits, index);
        // parseInt parses a string to a first unavailable symbol
        // but ToNumber should return NaN if a string contains unavailable symbols
        if (code < 48 || code > maxCode) return NaN;
      } return parseInt(digits, radix);
    }
  } return +it;
};

// `Number` constructor
// https://tc39.es/ecma262/#sec-number-constructor
if (isForced(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'))) {
  var NumberWrapper = function Number(value) {
    var n = arguments.length < 1 ? 0 : NativeNumber(toNumeric(value));
    var dummy = this;
    // check on 1..constructor(foo) case
    return isPrototypeOf(NumberPrototype, dummy) && fails(function () { thisNumberValue(dummy); })
      ? inheritIfRequired(Object(n), dummy, NumberWrapper) : n;
  };
  for (var keys = DESCRIPTORS ? getOwnPropertyNames(NativeNumber) : (
    // ES3:
    'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +
    // ES2015 (in case, if modules with ES2015 Number statics required before):
    'EPSILON,MAX_SAFE_INTEGER,MIN_SAFE_INTEGER,isFinite,isInteger,isNaN,isSafeInteger,parseFloat,parseInt,' +
    // ESNext
    'fromString,range'
  ).split(','), j = 0, key; keys.length > j; j++) {
    if (hasOwn(NativeNumber, key = keys[j]) && !hasOwn(NumberWrapper, key)) {
      defineProperty(NumberWrapper, key, getOwnPropertyDescriptor(NativeNumber, key));
    }
  }
  NumberWrapper.prototype = NumberPrototype;
  NumberPrototype.constructor = NumberWrapper;
  redefine(global, NUMBER, NumberWrapper);
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.epsilon.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.epsilon.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Number.EPSILON` constant
// https://tc39.es/ecma262/#sec-number.epsilon
$({ target: 'Number', stat: true }, {
  EPSILON: Math.pow(2, -52)
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.is-finite.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.is-finite.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var numberIsFinite = __webpack_require__(/*! ../internals/number-is-finite */ "./node_modules/core-js/internals/number-is-finite.js");

// `Number.isFinite` method
// https://tc39.es/ecma262/#sec-number.isfinite
$({ target: 'Number', stat: true }, { isFinite: numberIsFinite });


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.is-integer.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.is-integer.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var isIntegralNumber = __webpack_require__(/*! ../internals/is-integral-number */ "./node_modules/core-js/internals/is-integral-number.js");

// `Number.isInteger` method
// https://tc39.es/ecma262/#sec-number.isinteger
$({ target: 'Number', stat: true }, {
  isInteger: isIntegralNumber
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.is-nan.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.is-nan.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Number.isNaN` method
// https://tc39.es/ecma262/#sec-number.isnan
$({ target: 'Number', stat: true }, {
  isNaN: function isNaN(number) {
    // eslint-disable-next-line no-self-compare -- NaN check
    return number != number;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.is-safe-integer.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.is-safe-integer.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var isIntegralNumber = __webpack_require__(/*! ../internals/is-integral-number */ "./node_modules/core-js/internals/is-integral-number.js");

var abs = Math.abs;

// `Number.isSafeInteger` method
// https://tc39.es/ecma262/#sec-number.issafeinteger
$({ target: 'Number', stat: true }, {
  isSafeInteger: function isSafeInteger(number) {
    return isIntegralNumber(number) && abs(number) <= 0x1FFFFFFFFFFFFF;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.max-safe-integer.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.max-safe-integer.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Number.MAX_SAFE_INTEGER` constant
// https://tc39.es/ecma262/#sec-number.max_safe_integer
$({ target: 'Number', stat: true }, {
  MAX_SAFE_INTEGER: 0x1FFFFFFFFFFFFF
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.min-safe-integer.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.min-safe-integer.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Number.MIN_SAFE_INTEGER` constant
// https://tc39.es/ecma262/#sec-number.min_safe_integer
$({ target: 'Number', stat: true }, {
  MIN_SAFE_INTEGER: -0x1FFFFFFFFFFFFF
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.parse-float.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.parse-float.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var parseFloat = __webpack_require__(/*! ../internals/number-parse-float */ "./node_modules/core-js/internals/number-parse-float.js");

// `Number.parseFloat` method
// https://tc39.es/ecma262/#sec-number.parseFloat
// eslint-disable-next-line es/no-number-parsefloat -- required for testing
$({ target: 'Number', stat: true, forced: Number.parseFloat != parseFloat }, {
  parseFloat: parseFloat
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.parse-int.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.parse-int.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var parseInt = __webpack_require__(/*! ../internals/number-parse-int */ "./node_modules/core-js/internals/number-parse-int.js");

// `Number.parseInt` method
// https://tc39.es/ecma262/#sec-number.parseint
// eslint-disable-next-line es/no-number-parseint -- required for testing
$({ target: 'Number', stat: true, forced: Number.parseInt != parseInt }, {
  parseInt: parseInt
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.to-exponential.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.to-exponential.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var thisNumberValue = __webpack_require__(/*! ../internals/this-number-value */ "./node_modules/core-js/internals/this-number-value.js");
var $repeat = __webpack_require__(/*! ../internals/string-repeat */ "./node_modules/core-js/internals/string-repeat.js");
var log10 = __webpack_require__(/*! ../internals/math-log10 */ "./node_modules/core-js/internals/math-log10.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var RangeError = global.RangeError;
var String = global.String;
var isFinite = global.isFinite;
var abs = Math.abs;
var floor = Math.floor;
var pow = Math.pow;
var round = Math.round;
var un$ToExponential = uncurryThis(1.0.toExponential);
var repeat = uncurryThis($repeat);
var stringSlice = uncurryThis(''.slice);

// Edge 17-
var ROUNDS_PROPERLY = un$ToExponential(-6.9e-11, 4) === '-6.9000e-11'
  // IE11- && Edge 14-
  && un$ToExponential(1.255, 2) === '1.25e+0'
  // FF86-, V8 ~ Chrome 49-50
  && un$ToExponential(12345, 3) === '1.235e+4'
  // FF86-, V8 ~ Chrome 49-50
  && un$ToExponential(25, 0) === '3e+1';

// IE8-
var THROWS_ON_INFINITY_FRACTION = fails(function () {
  un$ToExponential(1, Infinity);
}) && fails(function () {
  un$ToExponential(1, -Infinity);
});

// Safari <11 && FF <50
var PROPER_NON_FINITE_THIS_CHECK = !fails(function () {
  un$ToExponential(Infinity, Infinity);
}) && !fails(function () {
  un$ToExponential(NaN, Infinity);
});

var FORCED = !ROUNDS_PROPERLY || !THROWS_ON_INFINITY_FRACTION || !PROPER_NON_FINITE_THIS_CHECK;

// `Number.prototype.toExponential` method
// https://tc39.es/ecma262/#sec-number.prototype.toexponential
$({ target: 'Number', proto: true, forced: FORCED }, {
  toExponential: function toExponential(fractionDigits) {
    var x = thisNumberValue(this);
    if (fractionDigits === undefined) return un$ToExponential(x);
    var f = toIntegerOrInfinity(fractionDigits);
    if (!isFinite(x)) return String(x);
    // TODO: ES2018 increased the maximum number of fraction digits to 100, need to improve the implementation
    if (f < 0 || f > 20) throw RangeError('Incorrect fraction digits');
    if (ROUNDS_PROPERLY) return un$ToExponential(x, f);
    var s = '';
    var m = '';
    var e = 0;
    var c = '';
    var d = '';
    if (x < 0) {
      s = '-';
      x = -x;
    }
    if (x === 0) {
      e = 0;
      m = repeat('0', f + 1);
    } else {
      // this block is based on https://gist.github.com/SheetJSDev/1100ad56b9f856c95299ed0e068eea08
      // TODO: improve accuracy with big fraction digits
      var l = log10(x);
      e = floor(l);
      var n = 0;
      var w = pow(10, e - f);
      n = round(x / w);
      if (2 * x >= (2 * n + 1) * w) {
        n += 1;
      }
      if (n >= pow(10, f + 1)) {
        n /= 10;
        e += 1;
      }
      m = String(n);
    }
    if (f !== 0) {
      m = stringSlice(m, 0, 1) + '.' + stringSlice(m, 1);
    }
    if (e === 0) {
      c = '+';
      d = '0';
    } else {
      c = e > 0 ? '+' : '-';
      d = String(abs(e));
    }
    m += 'e' + c + d;
    return s + m;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.to-fixed.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.to-fixed.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var thisNumberValue = __webpack_require__(/*! ../internals/this-number-value */ "./node_modules/core-js/internals/this-number-value.js");
var $repeat = __webpack_require__(/*! ../internals/string-repeat */ "./node_modules/core-js/internals/string-repeat.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var RangeError = global.RangeError;
var String = global.String;
var floor = Math.floor;
var repeat = uncurryThis($repeat);
var stringSlice = uncurryThis(''.slice);
var un$ToFixed = uncurryThis(1.0.toFixed);

var pow = function (x, n, acc) {
  return n === 0 ? acc : n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc);
};

var log = function (x) {
  var n = 0;
  var x2 = x;
  while (x2 >= 4096) {
    n += 12;
    x2 /= 4096;
  }
  while (x2 >= 2) {
    n += 1;
    x2 /= 2;
  } return n;
};

var multiply = function (data, n, c) {
  var index = -1;
  var c2 = c;
  while (++index < 6) {
    c2 += n * data[index];
    data[index] = c2 % 1e7;
    c2 = floor(c2 / 1e7);
  }
};

var divide = function (data, n) {
  var index = 6;
  var c = 0;
  while (--index >= 0) {
    c += data[index];
    data[index] = floor(c / n);
    c = (c % n) * 1e7;
  }
};

var dataToString = function (data) {
  var index = 6;
  var s = '';
  while (--index >= 0) {
    if (s !== '' || index === 0 || data[index] !== 0) {
      var t = String(data[index]);
      s = s === '' ? t : s + repeat('0', 7 - t.length) + t;
    }
  } return s;
};

var FORCED = fails(function () {
  return un$ToFixed(0.00008, 3) !== '0.000' ||
    un$ToFixed(0.9, 0) !== '1' ||
    un$ToFixed(1.255, 2) !== '1.25' ||
    un$ToFixed(1000000000000000128.0, 0) !== '1000000000000000128';
}) || !fails(function () {
  // V8 ~ Android 4.3-
  un$ToFixed({});
});

// `Number.prototype.toFixed` method
// https://tc39.es/ecma262/#sec-number.prototype.tofixed
$({ target: 'Number', proto: true, forced: FORCED }, {
  toFixed: function toFixed(fractionDigits) {
    var number = thisNumberValue(this);
    var fractDigits = toIntegerOrInfinity(fractionDigits);
    var data = [0, 0, 0, 0, 0, 0];
    var sign = '';
    var result = '0';
    var e, z, j, k;

    // TODO: ES2018 increased the maximum number of fraction digits to 100, need to improve the implementation
    if (fractDigits < 0 || fractDigits > 20) throw RangeError('Incorrect fraction digits');
    // eslint-disable-next-line no-self-compare -- NaN check
    if (number != number) return 'NaN';
    if (number <= -1e21 || number >= 1e21) return String(number);
    if (number < 0) {
      sign = '-';
      number = -number;
    }
    if (number > 1e-21) {
      e = log(number * pow(2, 69, 1)) - 69;
      z = e < 0 ? number * pow(2, -e, 1) : number / pow(2, e, 1);
      z *= 0x10000000000000;
      e = 52 - e;
      if (e > 0) {
        multiply(data, 0, z);
        j = fractDigits;
        while (j >= 7) {
          multiply(data, 1e7, 0);
          j -= 7;
        }
        multiply(data, pow(10, j, 1), 0);
        j = e - 1;
        while (j >= 23) {
          divide(data, 1 << 23);
          j -= 23;
        }
        divide(data, 1 << j);
        multiply(data, 1, 1);
        divide(data, 2);
        result = dataToString(data);
      } else {
        multiply(data, 0, z);
        multiply(data, 1 << -e, 0);
        result = dataToString(data) + repeat('0', fractDigits);
      }
    }
    if (fractDigits > 0) {
      k = result.length;
      result = sign + (k <= fractDigits
        ? '0.' + repeat('0', fractDigits - k) + result
        : stringSlice(result, 0, k - fractDigits) + '.' + stringSlice(result, k - fractDigits));
    } else {
      result = sign + result;
    } return result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.number.to-precision.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.number.to-precision.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var thisNumberValue = __webpack_require__(/*! ../internals/this-number-value */ "./node_modules/core-js/internals/this-number-value.js");

var un$ToPrecision = uncurryThis(1.0.toPrecision);

var FORCED = fails(function () {
  // IE7-
  return un$ToPrecision(1, undefined) !== '1';
}) || !fails(function () {
  // V8 ~ Android 4.3-
  un$ToPrecision({});
});

// `Number.prototype.toPrecision` method
// https://tc39.es/ecma262/#sec-number.prototype.toprecision
$({ target: 'Number', proto: true, forced: FORCED }, {
  toPrecision: function toPrecision(precision) {
    return precision === undefined
      ? un$ToPrecision(thisNumberValue(this))
      : un$ToPrecision(thisNumberValue(this), precision);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.assign.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.assign.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var assign = __webpack_require__(/*! ../internals/object-assign */ "./node_modules/core-js/internals/object-assign.js");

// `Object.assign` method
// https://tc39.es/ecma262/#sec-object.assign
// eslint-disable-next-line es/no-object-assign -- required for testing
$({ target: 'Object', stat: true, forced: Object.assign !== assign }, {
  assign: assign
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.create.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.create.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");

// `Object.create` method
// https://tc39.es/ecma262/#sec-object.create
$({ target: 'Object', stat: true, sham: !DESCRIPTORS }, {
  create: create
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.define-getter.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.define-getter.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var FORCED = __webpack_require__(/*! ../internals/object-prototype-accessors-forced */ "./node_modules/core-js/internals/object-prototype-accessors-forced.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");

// `Object.prototype.__defineGetter__` method
// https://tc39.es/ecma262/#sec-object.prototype.__defineGetter__
if (DESCRIPTORS) {
  $({ target: 'Object', proto: true, forced: FORCED }, {
    __defineGetter__: function __defineGetter__(P, getter) {
      definePropertyModule.f(toObject(this), P, { get: aCallable(getter), enumerable: true, configurable: true });
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.define-properties.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.define-properties.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var defineProperties = (__webpack_require__(/*! ../internals/object-define-properties */ "./node_modules/core-js/internals/object-define-properties.js").f);

// `Object.defineProperties` method
// https://tc39.es/ecma262/#sec-object.defineproperties
// eslint-disable-next-line es/no-object-defineproperties -- safe
$({ target: 'Object', stat: true, forced: Object.defineProperties !== defineProperties, sham: !DESCRIPTORS }, {
  defineProperties: defineProperties
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.define-property.js":
/*!*******************************************************************!*\
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);

// `Object.defineProperty` method
// https://tc39.es/ecma262/#sec-object.defineproperty
// eslint-disable-next-line es/no-object-defineproperty -- safe
$({ target: 'Object', stat: true, forced: Object.defineProperty !== defineProperty, sham: !DESCRIPTORS }, {
  defineProperty: defineProperty
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.define-setter.js":
/*!*****************************************************************!*\
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var FORCED = __webpack_require__(/*! ../internals/object-prototype-accessors-forced */ "./node_modules/core-js/internals/object-prototype-accessors-forced.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");

// `Object.prototype.__defineSetter__` method
// https://tc39.es/ecma262/#sec-object.prototype.__defineSetter__
if (DESCRIPTORS) {
  $({ target: 'Object', proto: true, forced: FORCED }, {
    __defineSetter__: function __defineSetter__(P, setter) {
      definePropertyModule.f(toObject(this), P, { set: aCallable(setter), enumerable: true, configurable: true });
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.entries.js":
/*!***********************************************************!*\
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $entries = (__webpack_require__(/*! ../internals/object-to-array */ "./node_modules/core-js/internals/object-to-array.js").entries);

// `Object.entries` method
// https://tc39.es/ecma262/#sec-object.entries
$({ target: 'Object', stat: true }, {
  entries: function entries(O) {
    return $entries(O);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.freeze.js":
/*!**********************************************************!*\
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var FREEZING = __webpack_require__(/*! ../internals/freezing */ "./node_modules/core-js/internals/freezing.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var onFreeze = (__webpack_require__(/*! ../internals/internal-metadata */ "./node_modules/core-js/internals/internal-metadata.js").onFreeze);

// eslint-disable-next-line es/no-object-freeze -- safe
var $freeze = Object.freeze;
var FAILS_ON_PRIMITIVES = fails(function () { $freeze(1); });

// `Object.freeze` method
// https://tc39.es/ecma262/#sec-object.freeze
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {
  freeze: function freeze(it) {
    return $freeze && isObject(it) ? $freeze(onFreeze(it)) : it;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.from-entries.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.from-entries.js ***!
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var createProperty = __webpack_require__(/*! ../internals/create-property */ "./node_modules/core-js/internals/create-property.js");

// `Object.fromEntries` method
// https://github.com/tc39/proposal-object-from-entries
$({ target: 'Object', stat: true }, {
  fromEntries: function fromEntries(iterable) {
    var obj = {};
    iterate(iterable, function (k, v) {
      createProperty(obj, k, v);
    }, { AS_ENTRIES: true });
    return obj;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.get-own-property-descriptor.js":
/*!*******************************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.get-own-property-descriptor.js ***!
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var nativeGetOwnPropertyDescriptor = (__webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js").f);
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");

var FAILS_ON_PRIMITIVES = fails(function () { nativeGetOwnPropertyDescriptor(1); });
var FORCED = !DESCRIPTORS || FAILS_ON_PRIMITIVES;

// `Object.getOwnPropertyDescriptor` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
$({ target: 'Object', stat: true, forced: FORCED, sham: !DESCRIPTORS }, {
  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(it, key) {
    return nativeGetOwnPropertyDescriptor(toIndexedObject(it), key);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.get-own-property-descriptors.js":
/*!********************************************************************************!*\
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var ownKeys = __webpack_require__(/*! ../internals/own-keys */ "./node_modules/core-js/internals/own-keys.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var getOwnPropertyDescriptorModule = __webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js");
var createProperty = __webpack_require__(/*! ../internals/create-property */ "./node_modules/core-js/internals/create-property.js");

// `Object.getOwnPropertyDescriptors` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
$({ target: 'Object', stat: true, sham: !DESCRIPTORS }, {
  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {
    var O = toIndexedObject(object);
    var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
    var keys = ownKeys(O);
    var result = {};
    var index = 0;
    var key, descriptor;
    while (keys.length > index) {
      descriptor = getOwnPropertyDescriptor(O, key = keys[index++]);
      if (descriptor !== undefined) createProperty(result, key, descriptor);
    }
    return result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.get-own-property-names.js":
/*!**************************************************************************!*\
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var getOwnPropertyNames = (__webpack_require__(/*! ../internals/object-get-own-property-names-external */ "./node_modules/core-js/internals/object-get-own-property-names-external.js").f);

// eslint-disable-next-line es/no-object-getownpropertynames -- required for testing
var FAILS_ON_PRIMITIVES = fails(function () { return !Object.getOwnPropertyNames(1); });

// `Object.getOwnPropertyNames` method
// https://tc39.es/ecma262/#sec-object.getownpropertynames
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
  getOwnPropertyNames: getOwnPropertyNames
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.get-prototype-of.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.get-prototype-of.js ***!
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var nativeGetPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var CORRECT_PROTOTYPE_GETTER = __webpack_require__(/*! ../internals/correct-prototype-getter */ "./node_modules/core-js/internals/correct-prototype-getter.js");

var FAILS_ON_PRIMITIVES = fails(function () { nativeGetPrototypeOf(1); });

// `Object.getPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.getprototypeof
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !CORRECT_PROTOTYPE_GETTER }, {
  getPrototypeOf: function getPrototypeOf(it) {
    return nativeGetPrototypeOf(toObject(it));
  }
});



/***/ }),

/***/ "./node_modules/core-js/modules/es.object.has-own.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.has-own.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");

// `Object.hasOwn` method
// https://github.com/tc39/proposal-accessible-object-hasownproperty
$({ target: 'Object', stat: true }, {
  hasOwn: hasOwn
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.is-extensible.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.is-extensible.js ***!
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $isExtensible = __webpack_require__(/*! ../internals/object-is-extensible */ "./node_modules/core-js/internals/object-is-extensible.js");

// `Object.isExtensible` method
// https://tc39.es/ecma262/#sec-object.isextensible
// eslint-disable-next-line es/no-object-isextensible -- safe
$({ target: 'Object', stat: true, forced: Object.isExtensible !== $isExtensible }, {
  isExtensible: $isExtensible
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.is-frozen.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.is-frozen.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var ARRAY_BUFFER_NON_EXTENSIBLE = __webpack_require__(/*! ../internals/array-buffer-non-extensible */ "./node_modules/core-js/internals/array-buffer-non-extensible.js");

// eslint-disable-next-line es/no-object-isfrozen -- safe
var $isFrozen = Object.isFrozen;
var FAILS_ON_PRIMITIVES = fails(function () { $isFrozen(1); });

// `Object.isFrozen` method
// https://tc39.es/ecma262/#sec-object.isfrozen
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES || ARRAY_BUFFER_NON_EXTENSIBLE }, {
  isFrozen: function isFrozen(it) {
    if (!isObject(it)) return true;
    if (ARRAY_BUFFER_NON_EXTENSIBLE && classof(it) == 'ArrayBuffer') return true;
    return $isFrozen ? $isFrozen(it) : false;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.is-sealed.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.is-sealed.js ***!
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var ARRAY_BUFFER_NON_EXTENSIBLE = __webpack_require__(/*! ../internals/array-buffer-non-extensible */ "./node_modules/core-js/internals/array-buffer-non-extensible.js");

// eslint-disable-next-line es/no-object-issealed -- safe
var $isSealed = Object.isSealed;
var FAILS_ON_PRIMITIVES = fails(function () { $isSealed(1); });

// `Object.isSealed` method
// https://tc39.es/ecma262/#sec-object.issealed
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES || ARRAY_BUFFER_NON_EXTENSIBLE }, {
  isSealed: function isSealed(it) {
    if (!isObject(it)) return true;
    if (ARRAY_BUFFER_NON_EXTENSIBLE && classof(it) == 'ArrayBuffer') return true;
    return $isSealed ? $isSealed(it) : false;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.is.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.is.js ***!
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var is = __webpack_require__(/*! ../internals/same-value */ "./node_modules/core-js/internals/same-value.js");

// `Object.is` method
// https://tc39.es/ecma262/#sec-object.is
$({ target: 'Object', stat: true }, {
  is: is
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.keys.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.keys.js ***!
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var nativeKeys = __webpack_require__(/*! ../internals/object-keys */ "./node_modules/core-js/internals/object-keys.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var FAILS_ON_PRIMITIVES = fails(function () { nativeKeys(1); });

// `Object.keys` method
// https://tc39.es/ecma262/#sec-object.keys
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
  keys: function keys(it) {
    return nativeKeys(toObject(it));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.lookup-getter.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.lookup-getter.js ***!
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var FORCED = __webpack_require__(/*! ../internals/object-prototype-accessors-forced */ "./node_modules/core-js/internals/object-prototype-accessors-forced.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var toPropertyKey = __webpack_require__(/*! ../internals/to-property-key */ "./node_modules/core-js/internals/to-property-key.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var getOwnPropertyDescriptor = (__webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js").f);

// `Object.prototype.__lookupGetter__` method
// https://tc39.es/ecma262/#sec-object.prototype.__lookupGetter__
if (DESCRIPTORS) {
  $({ target: 'Object', proto: true, forced: FORCED }, {
    __lookupGetter__: function __lookupGetter__(P) {
      var O = toObject(this);
      var key = toPropertyKey(P);
      var desc;
      do {
        if (desc = getOwnPropertyDescriptor(O, key)) return desc.get;
      } while (O = getPrototypeOf(O));
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.lookup-setter.js":
/*!*****************************************************************!*\
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var FORCED = __webpack_require__(/*! ../internals/object-prototype-accessors-forced */ "./node_modules/core-js/internals/object-prototype-accessors-forced.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var toPropertyKey = __webpack_require__(/*! ../internals/to-property-key */ "./node_modules/core-js/internals/to-property-key.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var getOwnPropertyDescriptor = (__webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js").f);

// `Object.prototype.__lookupSetter__` method
// https://tc39.es/ecma262/#sec-object.prototype.__lookupSetter__
if (DESCRIPTORS) {
  $({ target: 'Object', proto: true, forced: FORCED }, {
    __lookupSetter__: function __lookupSetter__(P) {
      var O = toObject(this);
      var key = toPropertyKey(P);
      var desc;
      do {
        if (desc = getOwnPropertyDescriptor(O, key)) return desc.set;
      } while (O = getPrototypeOf(O));
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.prevent-extensions.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.prevent-extensions.js ***!
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var onFreeze = (__webpack_require__(/*! ../internals/internal-metadata */ "./node_modules/core-js/internals/internal-metadata.js").onFreeze);
var FREEZING = __webpack_require__(/*! ../internals/freezing */ "./node_modules/core-js/internals/freezing.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

// eslint-disable-next-line es/no-object-preventextensions -- safe
var $preventExtensions = Object.preventExtensions;
var FAILS_ON_PRIMITIVES = fails(function () { $preventExtensions(1); });

// `Object.preventExtensions` method
// https://tc39.es/ecma262/#sec-object.preventextensions
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {
  preventExtensions: function preventExtensions(it) {
    return $preventExtensions && isObject(it) ? $preventExtensions(onFreeze(it)) : it;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.seal.js":
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/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var onFreeze = (__webpack_require__(/*! ../internals/internal-metadata */ "./node_modules/core-js/internals/internal-metadata.js").onFreeze);
var FREEZING = __webpack_require__(/*! ../internals/freezing */ "./node_modules/core-js/internals/freezing.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

// eslint-disable-next-line es/no-object-seal -- safe
var $seal = Object.seal;
var FAILS_ON_PRIMITIVES = fails(function () { $seal(1); });

// `Object.seal` method
// https://tc39.es/ecma262/#sec-object.seal
$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {
  seal: function seal(it) {
    return $seal && isObject(it) ? $seal(onFreeze(it)) : it;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.set-prototype-of.js":
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  !*** ./node_modules/core-js/modules/es.object.set-prototype-of.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var setPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");

// `Object.setPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.setprototypeof
$({ target: 'Object', stat: true }, {
  setPrototypeOf: setPrototypeOf
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.to-string.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.to-string.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var TO_STRING_TAG_SUPPORT = __webpack_require__(/*! ../internals/to-string-tag-support */ "./node_modules/core-js/internals/to-string-tag-support.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var toString = __webpack_require__(/*! ../internals/object-to-string */ "./node_modules/core-js/internals/object-to-string.js");

// `Object.prototype.toString` method
// https://tc39.es/ecma262/#sec-object.prototype.tostring
if (!TO_STRING_TAG_SUPPORT) {
  redefine(Object.prototype, 'toString', toString, { unsafe: true });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.object.values.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.object.values.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $values = (__webpack_require__(/*! ../internals/object-to-array */ "./node_modules/core-js/internals/object-to-array.js").values);

// `Object.values` method
// https://tc39.es/ecma262/#sec-object.values
$({ target: 'Object', stat: true }, {
  values: function values(O) {
    return $values(O);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.parse-float.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.parse-float.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $parseFloat = __webpack_require__(/*! ../internals/number-parse-float */ "./node_modules/core-js/internals/number-parse-float.js");

// `parseFloat` method
// https://tc39.es/ecma262/#sec-parsefloat-string
$({ global: true, forced: parseFloat != $parseFloat }, {
  parseFloat: $parseFloat
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.parse-int.js":
/*!******************************************************!*\
  !*** ./node_modules/core-js/modules/es.parse-int.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $parseInt = __webpack_require__(/*! ../internals/number-parse-int */ "./node_modules/core-js/internals/number-parse-int.js");

// `parseInt` method
// https://tc39.es/ecma262/#sec-parseint-string-radix
$({ global: true, forced: parseInt != $parseInt }, {
  parseInt: $parseInt
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.promise.all-settled.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.promise.all-settled.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var newPromiseCapabilityModule = __webpack_require__(/*! ../internals/new-promise-capability */ "./node_modules/core-js/internals/new-promise-capability.js");
var perform = __webpack_require__(/*! ../internals/perform */ "./node_modules/core-js/internals/perform.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Promise.allSettled` method
// https://tc39.es/ecma262/#sec-promise.allsettled
$({ target: 'Promise', stat: true }, {
  allSettled: function allSettled(iterable) {
    var C = this;
    var capability = newPromiseCapabilityModule.f(C);
    var resolve = capability.resolve;
    var reject = capability.reject;
    var result = perform(function () {
      var promiseResolve = aCallable(C.resolve);
      var values = [];
      var counter = 0;
      var remaining = 1;
      iterate(iterable, function (promise) {
        var index = counter++;
        var alreadyCalled = false;
        remaining++;
        call(promiseResolve, C, promise).then(function (value) {
          if (alreadyCalled) return;
          alreadyCalled = true;
          values[index] = { status: 'fulfilled', value: value };
          --remaining || resolve(values);
        }, function (error) {
          if (alreadyCalled) return;
          alreadyCalled = true;
          values[index] = { status: 'rejected', reason: error };
          --remaining || resolve(values);
        });
      });
      --remaining || resolve(values);
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.promise.any.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.promise.any.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var newPromiseCapabilityModule = __webpack_require__(/*! ../internals/new-promise-capability */ "./node_modules/core-js/internals/new-promise-capability.js");
var perform = __webpack_require__(/*! ../internals/perform */ "./node_modules/core-js/internals/perform.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

var PROMISE_ANY_ERROR = 'No one promise resolved';

// `Promise.any` method
// https://tc39.es/ecma262/#sec-promise.any
$({ target: 'Promise', stat: true }, {
  any: function any(iterable) {
    var C = this;
    var AggregateError = getBuiltIn('AggregateError');
    var capability = newPromiseCapabilityModule.f(C);
    var resolve = capability.resolve;
    var reject = capability.reject;
    var result = perform(function () {
      var promiseResolve = aCallable(C.resolve);
      var errors = [];
      var counter = 0;
      var remaining = 1;
      var alreadyResolved = false;
      iterate(iterable, function (promise) {
        var index = counter++;
        var alreadyRejected = false;
        remaining++;
        call(promiseResolve, C, promise).then(function (value) {
          if (alreadyRejected || alreadyResolved) return;
          alreadyResolved = true;
          resolve(value);
        }, function (error) {
          if (alreadyRejected || alreadyResolved) return;
          alreadyRejected = true;
          errors[index] = error;
          --remaining || reject(new AggregateError(errors, PROMISE_ANY_ERROR));
        });
      });
      --remaining || reject(new AggregateError(errors, PROMISE_ANY_ERROR));
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.promise.finally.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.promise.finally.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");
var NativePromise = __webpack_require__(/*! ../internals/native-promise-constructor */ "./node_modules/core-js/internals/native-promise-constructor.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var promiseResolve = __webpack_require__(/*! ../internals/promise-resolve */ "./node_modules/core-js/internals/promise-resolve.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");

// Safari bug https://bugs.webkit.org/show_bug.cgi?id=200829
var NON_GENERIC = !!NativePromise && fails(function () {
  // eslint-disable-next-line unicorn/no-thenable -- required for testing
  NativePromise.prototype['finally'].call({ then: function () { /* empty */ } }, function () { /* empty */ });
});

// `Promise.prototype.finally` method
// https://tc39.es/ecma262/#sec-promise.prototype.finally
$({ target: 'Promise', proto: true, real: true, forced: NON_GENERIC }, {
  'finally': function (onFinally) {
    var C = speciesConstructor(this, getBuiltIn('Promise'));
    var isFunction = isCallable(onFinally);
    return this.then(
      isFunction ? function (x) {
        return promiseResolve(C, onFinally()).then(function () { return x; });
      } : onFinally,
      isFunction ? function (e) {
        return promiseResolve(C, onFinally()).then(function () { throw e; });
      } : onFinally
    );
  }
});

// makes sure that native promise-based APIs `Promise#finally` properly works with patched `Promise#then`
if (!IS_PURE && isCallable(NativePromise)) {
  var method = getBuiltIn('Promise').prototype['finally'];
  if (NativePromise.prototype['finally'] !== method) {
    redefine(NativePromise.prototype, 'finally', method, { unsafe: true });
  }
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.promise.js":
/*!****************************************************!*\
  !*** ./node_modules/core-js/modules/es.promise.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var NativePromise = __webpack_require__(/*! ../internals/native-promise-constructor */ "./node_modules/core-js/internals/native-promise-constructor.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var setPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");
var setSpecies = __webpack_require__(/*! ../internals/set-species */ "./node_modules/core-js/internals/set-species.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var inspectSource = __webpack_require__(/*! ../internals/inspect-source */ "./node_modules/core-js/internals/inspect-source.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var checkCorrectnessOfIteration = __webpack_require__(/*! ../internals/check-correctness-of-iteration */ "./node_modules/core-js/internals/check-correctness-of-iteration.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var task = (__webpack_require__(/*! ../internals/task */ "./node_modules/core-js/internals/task.js").set);
var microtask = __webpack_require__(/*! ../internals/microtask */ "./node_modules/core-js/internals/microtask.js");
var promiseResolve = __webpack_require__(/*! ../internals/promise-resolve */ "./node_modules/core-js/internals/promise-resolve.js");
var hostReportErrors = __webpack_require__(/*! ../internals/host-report-errors */ "./node_modules/core-js/internals/host-report-errors.js");
var newPromiseCapabilityModule = __webpack_require__(/*! ../internals/new-promise-capability */ "./node_modules/core-js/internals/new-promise-capability.js");
var perform = __webpack_require__(/*! ../internals/perform */ "./node_modules/core-js/internals/perform.js");
var Queue = __webpack_require__(/*! ../internals/queue */ "./node_modules/core-js/internals/queue.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var isForced = __webpack_require__(/*! ../internals/is-forced */ "./node_modules/core-js/internals/is-forced.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var IS_BROWSER = __webpack_require__(/*! ../internals/engine-is-browser */ "./node_modules/core-js/internals/engine-is-browser.js");
var IS_NODE = __webpack_require__(/*! ../internals/engine-is-node */ "./node_modules/core-js/internals/engine-is-node.js");
var V8_VERSION = __webpack_require__(/*! ../internals/engine-v8-version */ "./node_modules/core-js/internals/engine-v8-version.js");

var SPECIES = wellKnownSymbol('species');
var PROMISE = 'Promise';

var getInternalState = InternalStateModule.getterFor(PROMISE);
var setInternalState = InternalStateModule.set;
var getInternalPromiseState = InternalStateModule.getterFor(PROMISE);
var NativePromisePrototype = NativePromise && NativePromise.prototype;
var PromiseConstructor = NativePromise;
var PromisePrototype = NativePromisePrototype;
var TypeError = global.TypeError;
var document = global.document;
var process = global.process;
var newPromiseCapability = newPromiseCapabilityModule.f;
var newGenericPromiseCapability = newPromiseCapability;

var DISPATCH_EVENT = !!(document && document.createEvent && global.dispatchEvent);
var NATIVE_REJECTION_EVENT = isCallable(global.PromiseRejectionEvent);
var UNHANDLED_REJECTION = 'unhandledrejection';
var REJECTION_HANDLED = 'rejectionhandled';
var PENDING = 0;
var FULFILLED = 1;
var REJECTED = 2;
var HANDLED = 1;
var UNHANDLED = 2;
var SUBCLASSING = false;

var Internal, OwnPromiseCapability, PromiseWrapper, nativeThen;

var FORCED = isForced(PROMISE, function () {
  var PROMISE_CONSTRUCTOR_SOURCE = inspectSource(PromiseConstructor);
  var GLOBAL_CORE_JS_PROMISE = PROMISE_CONSTRUCTOR_SOURCE !== String(PromiseConstructor);
  // V8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables
  // https://bugs.chromium.org/p/chromium/issues/detail?id=830565
  // We can't detect it synchronously, so just check versions
  if (!GLOBAL_CORE_JS_PROMISE && V8_VERSION === 66) return true;
  // We need Promise#finally in the pure version for preventing prototype pollution
  if (IS_PURE && !PromisePrototype['finally']) return true;
  // We can't use @@species feature detection in V8 since it causes
  // deoptimization and performance degradation
  // https://github.com/zloirock/core-js/issues/679
  if (V8_VERSION >= 51 && /native code/.test(PROMISE_CONSTRUCTOR_SOURCE)) return false;
  // Detect correctness of subclassing with @@species support
  var promise = new PromiseConstructor(function (resolve) { resolve(1); });
  var FakePromise = function (exec) {
    exec(function () { /* empty */ }, function () { /* empty */ });
  };
  var constructor = promise.constructor = {};
  constructor[SPECIES] = FakePromise;
  SUBCLASSING = promise.then(function () { /* empty */ }) instanceof FakePromise;
  if (!SUBCLASSING) return true;
  // Unhandled rejections tracking support, NodeJS Promise without it fails @@species test
  return !GLOBAL_CORE_JS_PROMISE && IS_BROWSER && !NATIVE_REJECTION_EVENT;
});

var INCORRECT_ITERATION = FORCED || !checkCorrectnessOfIteration(function (iterable) {
  PromiseConstructor.all(iterable)['catch'](function () { /* empty */ });
});

// helpers
var isThenable = function (it) {
  var then;
  return isObject(it) && isCallable(then = it.then) ? then : false;
};

var callReaction = function (reaction, state) {
  var value = state.value;
  var ok = state.state == FULFILLED;
  var handler = ok ? reaction.ok : reaction.fail;
  var resolve = reaction.resolve;
  var reject = reaction.reject;
  var domain = reaction.domain;
  var result, then, exited;
  try {
    if (handler) {
      if (!ok) {
        if (state.rejection === UNHANDLED) onHandleUnhandled(state);
        state.rejection = HANDLED;
      }
      if (handler === true) result = value;
      else {
        if (domain) domain.enter();
        result = handler(value); // can throw
        if (domain) {
          domain.exit();
          exited = true;
        }
      }
      if (result === reaction.promise) {
        reject(TypeError('Promise-chain cycle'));
      } else if (then = isThenable(result)) {
        call(then, result, resolve, reject);
      } else resolve(result);
    } else reject(value);
  } catch (error) {
    if (domain && !exited) domain.exit();
    reject(error);
  }
};

var notify = function (state, isReject) {
  if (state.notified) return;
  state.notified = true;
  microtask(function () {
    var reactions = state.reactions;
    var reaction;
    while (reaction = reactions.get()) {
      callReaction(reaction, state);
    }
    state.notified = false;
    if (isReject && !state.rejection) onUnhandled(state);
  });
};

var dispatchEvent = function (name, promise, reason) {
  var event, handler;
  if (DISPATCH_EVENT) {
    event = document.createEvent('Event');
    event.promise = promise;
    event.reason = reason;
    event.initEvent(name, false, true);
    global.dispatchEvent(event);
  } else event = { promise: promise, reason: reason };
  if (!NATIVE_REJECTION_EVENT && (handler = global['on' + name])) handler(event);
  else if (name === UNHANDLED_REJECTION) hostReportErrors('Unhandled promise rejection', reason);
};

var onUnhandled = function (state) {
  call(task, global, function () {
    var promise = state.facade;
    var value = state.value;
    var IS_UNHANDLED = isUnhandled(state);
    var result;
    if (IS_UNHANDLED) {
      result = perform(function () {
        if (IS_NODE) {
          process.emit('unhandledRejection', value, promise);
        } else dispatchEvent(UNHANDLED_REJECTION, promise, value);
      });
      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should
      state.rejection = IS_NODE || isUnhandled(state) ? UNHANDLED : HANDLED;
      if (result.error) throw result.value;
    }
  });
};

var isUnhandled = function (state) {
  return state.rejection !== HANDLED && !state.parent;
};

var onHandleUnhandled = function (state) {
  call(task, global, function () {
    var promise = state.facade;
    if (IS_NODE) {
      process.emit('rejectionHandled', promise);
    } else dispatchEvent(REJECTION_HANDLED, promise, state.value);
  });
};

var bind = function (fn, state, unwrap) {
  return function (value) {
    fn(state, value, unwrap);
  };
};

var internalReject = function (state, value, unwrap) {
  if (state.done) return;
  state.done = true;
  if (unwrap) state = unwrap;
  state.value = value;
  state.state = REJECTED;
  notify(state, true);
};

var internalResolve = function (state, value, unwrap) {
  if (state.done) return;
  state.done = true;
  if (unwrap) state = unwrap;
  try {
    if (state.facade === value) throw TypeError("Promise can't be resolved itself");
    var then = isThenable(value);
    if (then) {
      microtask(function () {
        var wrapper = { done: false };
        try {
          call(then, value,
            bind(internalResolve, wrapper, state),
            bind(internalReject, wrapper, state)
          );
        } catch (error) {
          internalReject(wrapper, error, state);
        }
      });
    } else {
      state.value = value;
      state.state = FULFILLED;
      notify(state, false);
    }
  } catch (error) {
    internalReject({ done: false }, error, state);
  }
};

// constructor polyfill
if (FORCED) {
  // 25.4.3.1 Promise(executor)
  PromiseConstructor = function Promise(executor) {
    anInstance(this, PromisePrototype);
    aCallable(executor);
    call(Internal, this);
    var state = getInternalState(this);
    try {
      executor(bind(internalResolve, state), bind(internalReject, state));
    } catch (error) {
      internalReject(state, error);
    }
  };
  PromisePrototype = PromiseConstructor.prototype;
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  Internal = function Promise(executor) {
    setInternalState(this, {
      type: PROMISE,
      done: false,
      notified: false,
      parent: false,
      reactions: new Queue(),
      rejection: false,
      state: PENDING,
      value: undefined
    });
  };
  Internal.prototype = redefineAll(PromisePrototype, {
    // `Promise.prototype.then` method
    // https://tc39.es/ecma262/#sec-promise.prototype.then
    // eslint-disable-next-line unicorn/no-thenable -- safe
    then: function then(onFulfilled, onRejected) {
      var state = getInternalPromiseState(this);
      var reaction = newPromiseCapability(speciesConstructor(this, PromiseConstructor));
      state.parent = true;
      reaction.ok = isCallable(onFulfilled) ? onFulfilled : true;
      reaction.fail = isCallable(onRejected) && onRejected;
      reaction.domain = IS_NODE ? process.domain : undefined;
      if (state.state == PENDING) state.reactions.add(reaction);
      else microtask(function () {
        callReaction(reaction, state);
      });
      return reaction.promise;
    },
    // `Promise.prototype.catch` method
    // https://tc39.es/ecma262/#sec-promise.prototype.catch
    'catch': function (onRejected) {
      return this.then(undefined, onRejected);
    }
  });
  OwnPromiseCapability = function () {
    var promise = new Internal();
    var state = getInternalState(promise);
    this.promise = promise;
    this.resolve = bind(internalResolve, state);
    this.reject = bind(internalReject, state);
  };
  newPromiseCapabilityModule.f = newPromiseCapability = function (C) {
    return C === PromiseConstructor || C === PromiseWrapper
      ? new OwnPromiseCapability(C)
      : newGenericPromiseCapability(C);
  };

  if (!IS_PURE && isCallable(NativePromise) && NativePromisePrototype !== Object.prototype) {
    nativeThen = NativePromisePrototype.then;

    if (!SUBCLASSING) {
      // make `Promise#then` return a polyfilled `Promise` for native promise-based APIs
      redefine(NativePromisePrototype, 'then', function then(onFulfilled, onRejected) {
        var that = this;
        return new PromiseConstructor(function (resolve, reject) {
          call(nativeThen, that, resolve, reject);
        }).then(onFulfilled, onRejected);
      // https://github.com/zloirock/core-js/issues/640
      }, { unsafe: true });

      // makes sure that native promise-based APIs `Promise#catch` properly works with patched `Promise#then`
      redefine(NativePromisePrototype, 'catch', PromisePrototype['catch'], { unsafe: true });
    }

    // make `.constructor === Promise` work for native promise-based APIs
    try {
      delete NativePromisePrototype.constructor;
    } catch (error) { /* empty */ }

    // make `instanceof Promise` work for native promise-based APIs
    if (setPrototypeOf) {
      setPrototypeOf(NativePromisePrototype, PromisePrototype);
    }
  }
}

$({ global: true, wrap: true, forced: FORCED }, {
  Promise: PromiseConstructor
});

setToStringTag(PromiseConstructor, PROMISE, false, true);
setSpecies(PROMISE);

PromiseWrapper = getBuiltIn(PROMISE);

// statics
$({ target: PROMISE, stat: true, forced: FORCED }, {
  // `Promise.reject` method
  // https://tc39.es/ecma262/#sec-promise.reject
  reject: function reject(r) {
    var capability = newPromiseCapability(this);
    call(capability.reject, undefined, r);
    return capability.promise;
  }
});

$({ target: PROMISE, stat: true, forced: IS_PURE || FORCED }, {
  // `Promise.resolve` method
  // https://tc39.es/ecma262/#sec-promise.resolve
  resolve: function resolve(x) {
    return promiseResolve(IS_PURE && this === PromiseWrapper ? PromiseConstructor : this, x);
  }
});

$({ target: PROMISE, stat: true, forced: INCORRECT_ITERATION }, {
  // `Promise.all` method
  // https://tc39.es/ecma262/#sec-promise.all
  all: function all(iterable) {
    var C = this;
    var capability = newPromiseCapability(C);
    var resolve = capability.resolve;
    var reject = capability.reject;
    var result = perform(function () {
      var $promiseResolve = aCallable(C.resolve);
      var values = [];
      var counter = 0;
      var remaining = 1;
      iterate(iterable, function (promise) {
        var index = counter++;
        var alreadyCalled = false;
        remaining++;
        call($promiseResolve, C, promise).then(function (value) {
          if (alreadyCalled) return;
          alreadyCalled = true;
          values[index] = value;
          --remaining || resolve(values);
        }, reject);
      });
      --remaining || resolve(values);
    });
    if (result.error) reject(result.value);
    return capability.promise;
  },
  // `Promise.race` method
  // https://tc39.es/ecma262/#sec-promise.race
  race: function race(iterable) {
    var C = this;
    var capability = newPromiseCapability(C);
    var reject = capability.reject;
    var result = perform(function () {
      var $promiseResolve = aCallable(C.resolve);
      iterate(iterable, function (promise) {
        call($promiseResolve, C, promise).then(capability.resolve, reject);
      });
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.apply.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.apply.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var functionApply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

// MS Edge argumentsList argument is optional
var OPTIONAL_ARGUMENTS_LIST = !fails(function () {
  // eslint-disable-next-line es/no-reflect -- required for testing
  Reflect.apply(function () { /* empty */ });
});

// `Reflect.apply` method
// https://tc39.es/ecma262/#sec-reflect.apply
$({ target: 'Reflect', stat: true, forced: OPTIONAL_ARGUMENTS_LIST }, {
  apply: function apply(target, thisArgument, argumentsList) {
    return functionApply(aCallable(target), thisArgument, anObject(argumentsList));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.construct.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.construct.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var bind = __webpack_require__(/*! ../internals/function-bind */ "./node_modules/core-js/internals/function-bind.js");
var aConstructor = __webpack_require__(/*! ../internals/a-constructor */ "./node_modules/core-js/internals/a-constructor.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var nativeConstruct = getBuiltIn('Reflect', 'construct');
var ObjectPrototype = Object.prototype;
var push = [].push;

// `Reflect.construct` method
// https://tc39.es/ecma262/#sec-reflect.construct
// MS Edge supports only 2 arguments and argumentsList argument is optional
// FF Nightly sets third argument as `new.target`, but does not create `this` from it
var NEW_TARGET_BUG = fails(function () {
  function F() { /* empty */ }
  return !(nativeConstruct(function () { /* empty */ }, [], F) instanceof F);
});

var ARGS_BUG = !fails(function () {
  nativeConstruct(function () { /* empty */ });
});

var FORCED = NEW_TARGET_BUG || ARGS_BUG;

$({ target: 'Reflect', stat: true, forced: FORCED, sham: FORCED }, {
  construct: function construct(Target, args /* , newTarget */) {
    aConstructor(Target);
    anObject(args);
    var newTarget = arguments.length < 3 ? Target : aConstructor(arguments[2]);
    if (ARGS_BUG && !NEW_TARGET_BUG) return nativeConstruct(Target, args, newTarget);
    if (Target == newTarget) {
      // w/o altered newTarget, optimization for 0-4 arguments
      switch (args.length) {
        case 0: return new Target();
        case 1: return new Target(args[0]);
        case 2: return new Target(args[0], args[1]);
        case 3: return new Target(args[0], args[1], args[2]);
        case 4: return new Target(args[0], args[1], args[2], args[3]);
      }
      // w/o altered newTarget, lot of arguments case
      var $args = [null];
      apply(push, $args, args);
      return new (apply(bind, Target, $args))();
    }
    // with altered newTarget, not support built-in constructors
    var proto = newTarget.prototype;
    var instance = create(isObject(proto) ? proto : ObjectPrototype);
    var result = apply(Target, instance, args);
    return isObject(result) ? result : instance;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.define-property.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.define-property.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toPropertyKey = __webpack_require__(/*! ../internals/to-property-key */ "./node_modules/core-js/internals/to-property-key.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

// MS Edge has broken Reflect.defineProperty - throwing instead of returning false
var ERROR_INSTEAD_OF_FALSE = fails(function () {
  // eslint-disable-next-line es/no-reflect -- required for testing
  Reflect.defineProperty(definePropertyModule.f({}, 1, { value: 1 }), 1, { value: 2 });
});

// `Reflect.defineProperty` method
// https://tc39.es/ecma262/#sec-reflect.defineproperty
$({ target: 'Reflect', stat: true, forced: ERROR_INSTEAD_OF_FALSE, sham: !DESCRIPTORS }, {
  defineProperty: function defineProperty(target, propertyKey, attributes) {
    anObject(target);
    var key = toPropertyKey(propertyKey);
    anObject(attributes);
    try {
      definePropertyModule.f(target, key, attributes);
      return true;
    } catch (error) {
      return false;
    }
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.delete-property.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.delete-property.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getOwnPropertyDescriptor = (__webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js").f);

// `Reflect.deleteProperty` method
// https://tc39.es/ecma262/#sec-reflect.deleteproperty
$({ target: 'Reflect', stat: true }, {
  deleteProperty: function deleteProperty(target, propertyKey) {
    var descriptor = getOwnPropertyDescriptor(anObject(target), propertyKey);
    return descriptor && !descriptor.configurable ? false : delete target[propertyKey];
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.get-own-property-descriptor.js":
/*!********************************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.get-own-property-descriptor.js ***!
  \********************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getOwnPropertyDescriptorModule = __webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js");

// `Reflect.getOwnPropertyDescriptor` method
// https://tc39.es/ecma262/#sec-reflect.getownpropertydescriptor
$({ target: 'Reflect', stat: true, sham: !DESCRIPTORS }, {
  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(target, propertyKey) {
    return getOwnPropertyDescriptorModule.f(anObject(target), propertyKey);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.get-prototype-of.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.get-prototype-of.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var objectGetPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var CORRECT_PROTOTYPE_GETTER = __webpack_require__(/*! ../internals/correct-prototype-getter */ "./node_modules/core-js/internals/correct-prototype-getter.js");

// `Reflect.getPrototypeOf` method
// https://tc39.es/ecma262/#sec-reflect.getprototypeof
$({ target: 'Reflect', stat: true, sham: !CORRECT_PROTOTYPE_GETTER }, {
  getPrototypeOf: function getPrototypeOf(target) {
    return objectGetPrototypeOf(anObject(target));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.get.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.get.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isDataDescriptor = __webpack_require__(/*! ../internals/is-data-descriptor */ "./node_modules/core-js/internals/is-data-descriptor.js");
var getOwnPropertyDescriptorModule = __webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");

// `Reflect.get` method
// https://tc39.es/ecma262/#sec-reflect.get
function get(target, propertyKey /* , receiver */) {
  var receiver = arguments.length < 3 ? target : arguments[2];
  var descriptor, prototype;
  if (anObject(target) === receiver) return target[propertyKey];
  descriptor = getOwnPropertyDescriptorModule.f(target, propertyKey);
  if (descriptor) return isDataDescriptor(descriptor)
    ? descriptor.value
    : descriptor.get === undefined ? undefined : call(descriptor.get, receiver);
  if (isObject(prototype = getPrototypeOf(target))) return get(prototype, propertyKey, receiver);
}

$({ target: 'Reflect', stat: true }, {
  get: get
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.has.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.has.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Reflect.has` method
// https://tc39.es/ecma262/#sec-reflect.has
$({ target: 'Reflect', stat: true }, {
  has: function has(target, propertyKey) {
    return propertyKey in target;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.is-extensible.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.is-extensible.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var $isExtensible = __webpack_require__(/*! ../internals/object-is-extensible */ "./node_modules/core-js/internals/object-is-extensible.js");

// `Reflect.isExtensible` method
// https://tc39.es/ecma262/#sec-reflect.isextensible
$({ target: 'Reflect', stat: true }, {
  isExtensible: function isExtensible(target) {
    anObject(target);
    return $isExtensible(target);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.own-keys.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.own-keys.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ownKeys = __webpack_require__(/*! ../internals/own-keys */ "./node_modules/core-js/internals/own-keys.js");

// `Reflect.ownKeys` method
// https://tc39.es/ecma262/#sec-reflect.ownkeys
$({ target: 'Reflect', stat: true }, {
  ownKeys: ownKeys
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.prevent-extensions.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.prevent-extensions.js ***!
  \***********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var FREEZING = __webpack_require__(/*! ../internals/freezing */ "./node_modules/core-js/internals/freezing.js");

// `Reflect.preventExtensions` method
// https://tc39.es/ecma262/#sec-reflect.preventextensions
$({ target: 'Reflect', stat: true, sham: !FREEZING }, {
  preventExtensions: function preventExtensions(target) {
    anObject(target);
    try {
      var objectPreventExtensions = getBuiltIn('Object', 'preventExtensions');
      if (objectPreventExtensions) objectPreventExtensions(target);
      return true;
    } catch (error) {
      return false;
    }
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.set-prototype-of.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.set-prototype-of.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var aPossiblePrototype = __webpack_require__(/*! ../internals/a-possible-prototype */ "./node_modules/core-js/internals/a-possible-prototype.js");
var objectSetPrototypeOf = __webpack_require__(/*! ../internals/object-set-prototype-of */ "./node_modules/core-js/internals/object-set-prototype-of.js");

// `Reflect.setPrototypeOf` method
// https://tc39.es/ecma262/#sec-reflect.setprototypeof
if (objectSetPrototypeOf) $({ target: 'Reflect', stat: true }, {
  setPrototypeOf: function setPrototypeOf(target, proto) {
    anObject(target);
    aPossiblePrototype(proto);
    try {
      objectSetPrototypeOf(target, proto);
      return true;
    } catch (error) {
      return false;
    }
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.set.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.set.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var isDataDescriptor = __webpack_require__(/*! ../internals/is-data-descriptor */ "./node_modules/core-js/internals/is-data-descriptor.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var getOwnPropertyDescriptorModule = __webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");

// `Reflect.set` method
// https://tc39.es/ecma262/#sec-reflect.set
function set(target, propertyKey, V /* , receiver */) {
  var receiver = arguments.length < 4 ? target : arguments[3];
  var ownDescriptor = getOwnPropertyDescriptorModule.f(anObject(target), propertyKey);
  var existingDescriptor, prototype, setter;
  if (!ownDescriptor) {
    if (isObject(prototype = getPrototypeOf(target))) {
      return set(prototype, propertyKey, V, receiver);
    }
    ownDescriptor = createPropertyDescriptor(0);
  }
  if (isDataDescriptor(ownDescriptor)) {
    if (ownDescriptor.writable === false || !isObject(receiver)) return false;
    if (existingDescriptor = getOwnPropertyDescriptorModule.f(receiver, propertyKey)) {
      if (existingDescriptor.get || existingDescriptor.set || existingDescriptor.writable === false) return false;
      existingDescriptor.value = V;
      definePropertyModule.f(receiver, propertyKey, existingDescriptor);
    } else definePropertyModule.f(receiver, propertyKey, createPropertyDescriptor(0, V));
  } else {
    setter = ownDescriptor.set;
    if (setter === undefined) return false;
    call(setter, receiver, V);
  } return true;
}

// MS Edge 17-18 Reflect.set allows setting the property to object
// with non-writable property on the prototype
var MS_EDGE_BUG = fails(function () {
  var Constructor = function () { /* empty */ };
  var object = definePropertyModule.f(new Constructor(), 'a', { configurable: true });
  // eslint-disable-next-line es/no-reflect -- required for testing
  return Reflect.set(Constructor.prototype, 'a', 1, object) !== false;
});

$({ target: 'Reflect', stat: true, forced: MS_EDGE_BUG }, {
  set: set
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.reflect.to-string-tag.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.reflect.to-string-tag.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");

$({ global: true }, { Reflect: {} });

// Reflect[@@toStringTag] property
// https://tc39.es/ecma262/#sec-reflect-@@tostringtag
setToStringTag(global.Reflect, 'Reflect', true);


/***/ }),

/***/ "./node_modules/core-js/modules/es.regexp.constructor.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.regexp.constructor.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var isForced = __webpack_require__(/*! ../internals/is-forced */ "./node_modules/core-js/internals/is-forced.js");
var inheritIfRequired = __webpack_require__(/*! ../internals/inherit-if-required */ "./node_modules/core-js/internals/inherit-if-required.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var getOwnPropertyNames = (__webpack_require__(/*! ../internals/object-get-own-property-names */ "./node_modules/core-js/internals/object-get-own-property-names.js").f);
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var isRegExp = __webpack_require__(/*! ../internals/is-regexp */ "./node_modules/core-js/internals/is-regexp.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var regExpFlags = __webpack_require__(/*! ../internals/regexp-flags */ "./node_modules/core-js/internals/regexp-flags.js");
var stickyHelpers = __webpack_require__(/*! ../internals/regexp-sticky-helpers */ "./node_modules/core-js/internals/regexp-sticky-helpers.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var enforceInternalState = (__webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js").enforce);
var setSpecies = __webpack_require__(/*! ../internals/set-species */ "./node_modules/core-js/internals/set-species.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var UNSUPPORTED_DOT_ALL = __webpack_require__(/*! ../internals/regexp-unsupported-dot-all */ "./node_modules/core-js/internals/regexp-unsupported-dot-all.js");
var UNSUPPORTED_NCG = __webpack_require__(/*! ../internals/regexp-unsupported-ncg */ "./node_modules/core-js/internals/regexp-unsupported-ncg.js");

var MATCH = wellKnownSymbol('match');
var NativeRegExp = global.RegExp;
var RegExpPrototype = NativeRegExp.prototype;
var SyntaxError = global.SyntaxError;
var getFlags = uncurryThis(regExpFlags);
var exec = uncurryThis(RegExpPrototype.exec);
var charAt = uncurryThis(''.charAt);
var replace = uncurryThis(''.replace);
var stringIndexOf = uncurryThis(''.indexOf);
var stringSlice = uncurryThis(''.slice);
// TODO: Use only propper RegExpIdentifierName
var IS_NCG = /^\?<[^\s\d!#%&*+<=>@^][^\s!#%&*+<=>@^]*>/;
var re1 = /a/g;
var re2 = /a/g;

// "new" should create a new object, old webkit bug
var CORRECT_NEW = new NativeRegExp(re1) !== re1;

var MISSED_STICKY = stickyHelpers.MISSED_STICKY;
var UNSUPPORTED_Y = stickyHelpers.UNSUPPORTED_Y;

var BASE_FORCED = DESCRIPTORS &&
  (!CORRECT_NEW || MISSED_STICKY || UNSUPPORTED_DOT_ALL || UNSUPPORTED_NCG || fails(function () {
    re2[MATCH] = false;
    // RegExp constructor can alter flags and IsRegExp works correct with @@match
    return NativeRegExp(re1) != re1 || NativeRegExp(re2) == re2 || NativeRegExp(re1, 'i') != '/a/i';
  }));

var handleDotAll = function (string) {
  var length = string.length;
  var index = 0;
  var result = '';
  var brackets = false;
  var chr;
  for (; index <= length; index++) {
    chr = charAt(string, index);
    if (chr === '\\') {
      result += chr + charAt(string, ++index);
      continue;
    }
    if (!brackets && chr === '.') {
      result += '[\\s\\S]';
    } else {
      if (chr === '[') {
        brackets = true;
      } else if (chr === ']') {
        brackets = false;
      } result += chr;
    }
  } return result;
};

var handleNCG = function (string) {
  var length = string.length;
  var index = 0;
  var result = '';
  var named = [];
  var names = {};
  var brackets = false;
  var ncg = false;
  var groupid = 0;
  var groupname = '';
  var chr;
  for (; index <= length; index++) {
    chr = charAt(string, index);
    if (chr === '\\') {
      chr = chr + charAt(string, ++index);
    } else if (chr === ']') {
      brackets = false;
    } else if (!brackets) switch (true) {
      case chr === '[':
        brackets = true;
        break;
      case chr === '(':
        if (exec(IS_NCG, stringSlice(string, index + 1))) {
          index += 2;
          ncg = true;
        }
        result += chr;
        groupid++;
        continue;
      case chr === '>' && ncg:
        if (groupname === '' || hasOwn(names, groupname)) {
          throw new SyntaxError('Invalid capture group name');
        }
        names[groupname] = true;
        named[named.length] = [groupname, groupid];
        ncg = false;
        groupname = '';
        continue;
    }
    if (ncg) groupname += chr;
    else result += chr;
  } return [result, named];
};

// `RegExp` constructor
// https://tc39.es/ecma262/#sec-regexp-constructor
if (isForced('RegExp', BASE_FORCED)) {
  var RegExpWrapper = function RegExp(pattern, flags) {
    var thisIsRegExp = isPrototypeOf(RegExpPrototype, this);
    var patternIsRegExp = isRegExp(pattern);
    var flagsAreUndefined = flags === undefined;
    var groups = [];
    var rawPattern = pattern;
    var rawFlags, dotAll, sticky, handled, result, state;

    if (!thisIsRegExp && patternIsRegExp && flagsAreUndefined && pattern.constructor === RegExpWrapper) {
      return pattern;
    }

    if (patternIsRegExp || isPrototypeOf(RegExpPrototype, pattern)) {
      pattern = pattern.source;
      if (flagsAreUndefined) flags = 'flags' in rawPattern ? rawPattern.flags : getFlags(rawPattern);
    }

    pattern = pattern === undefined ? '' : toString(pattern);
    flags = flags === undefined ? '' : toString(flags);
    rawPattern = pattern;

    if (UNSUPPORTED_DOT_ALL && 'dotAll' in re1) {
      dotAll = !!flags && stringIndexOf(flags, 's') > -1;
      if (dotAll) flags = replace(flags, /s/g, '');
    }

    rawFlags = flags;

    if (MISSED_STICKY && 'sticky' in re1) {
      sticky = !!flags && stringIndexOf(flags, 'y') > -1;
      if (sticky && UNSUPPORTED_Y) flags = replace(flags, /y/g, '');
    }

    if (UNSUPPORTED_NCG) {
      handled = handleNCG(pattern);
      pattern = handled[0];
      groups = handled[1];
    }

    result = inheritIfRequired(NativeRegExp(pattern, flags), thisIsRegExp ? this : RegExpPrototype, RegExpWrapper);

    if (dotAll || sticky || groups.length) {
      state = enforceInternalState(result);
      if (dotAll) {
        state.dotAll = true;
        state.raw = RegExpWrapper(handleDotAll(pattern), rawFlags);
      }
      if (sticky) state.sticky = true;
      if (groups.length) state.groups = groups;
    }

    if (pattern !== rawPattern) try {
      // fails in old engines, but we have no alternatives for unsupported regex syntax
      createNonEnumerableProperty(result, 'source', rawPattern === '' ? '(?:)' : rawPattern);
    } catch (error) { /* empty */ }

    return result;
  };

  var proxy = function (key) {
    key in RegExpWrapper || defineProperty(RegExpWrapper, key, {
      configurable: true,
      get: function () { return NativeRegExp[key]; },
      set: function (it) { NativeRegExp[key] = it; }
    });
  };

  for (var keys = getOwnPropertyNames(NativeRegExp), index = 0; keys.length > index;) {
    proxy(keys[index++]);
  }

  RegExpPrototype.constructor = RegExpWrapper;
  RegExpWrapper.prototype = RegExpPrototype;
  redefine(global, 'RegExp', RegExpWrapper);
}

// https://tc39.es/ecma262/#sec-get-regexp-@@species
setSpecies('RegExp');


/***/ }),

/***/ "./node_modules/core-js/modules/es.regexp.dot-all.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.regexp.dot-all.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var UNSUPPORTED_DOT_ALL = __webpack_require__(/*! ../internals/regexp-unsupported-dot-all */ "./node_modules/core-js/internals/regexp-unsupported-dot-all.js");
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var getInternalState = (__webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js").get);

var RegExpPrototype = RegExp.prototype;
var TypeError = global.TypeError;

// `RegExp.prototype.dotAll` getter
// https://tc39.es/ecma262/#sec-get-regexp.prototype.dotall
if (DESCRIPTORS && UNSUPPORTED_DOT_ALL) {
  defineProperty(RegExpPrototype, 'dotAll', {
    configurable: true,
    get: function () {
      if (this === RegExpPrototype) return undefined;
      // We can't use InternalStateModule.getterFor because
      // we don't add metadata for regexps created by a literal.
      if (classof(this) === 'RegExp') {
        return !!getInternalState(this).dotAll;
      }
      throw TypeError('Incompatible receiver, RegExp required');
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.regexp.exec.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.regexp.exec.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var exec = __webpack_require__(/*! ../internals/regexp-exec */ "./node_modules/core-js/internals/regexp-exec.js");

// `RegExp.prototype.exec` method
// https://tc39.es/ecma262/#sec-regexp.prototype.exec
$({ target: 'RegExp', proto: true, forced: /./.exec !== exec }, {
  exec: exec
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.regexp.flags.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.regexp.flags.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var objectDefinePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var regExpFlags = __webpack_require__(/*! ../internals/regexp-flags */ "./node_modules/core-js/internals/regexp-flags.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var RegExpPrototype = RegExp.prototype;

var FORCED = DESCRIPTORS && fails(function () {
  // eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
  return Object.getOwnPropertyDescriptor(RegExpPrototype, 'flags').get.call({ dotAll: true, sticky: true }) !== 'sy';
});

// `RegExp.prototype.flags` getter
// https://tc39.es/ecma262/#sec-get-regexp.prototype.flags
if (FORCED) objectDefinePropertyModule.f(RegExpPrototype, 'flags', {
  configurable: true,
  get: regExpFlags
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.regexp.sticky.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.regexp.sticky.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var MISSED_STICKY = (__webpack_require__(/*! ../internals/regexp-sticky-helpers */ "./node_modules/core-js/internals/regexp-sticky-helpers.js").MISSED_STICKY);
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var getInternalState = (__webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js").get);

var RegExpPrototype = RegExp.prototype;
var TypeError = global.TypeError;

// `RegExp.prototype.sticky` getter
// https://tc39.es/ecma262/#sec-get-regexp.prototype.sticky
if (DESCRIPTORS && MISSED_STICKY) {
  defineProperty(RegExpPrototype, 'sticky', {
    configurable: true,
    get: function () {
      if (this === RegExpPrototype) return undefined;
      // We can't use InternalStateModule.getterFor because
      // we don't add metadata for regexps created by a literal.
      if (classof(this) === 'RegExp') {
        return !!getInternalState(this).sticky;
      }
      throw TypeError('Incompatible receiver, RegExp required');
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.regexp.test.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.regexp.test.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: Remove from `core-js@4` since it's moved to entry points
__webpack_require__(/*! ../modules/es.regexp.exec */ "./node_modules/core-js/modules/es.regexp.exec.js");
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");

var DELEGATES_TO_EXEC = function () {
  var execCalled = false;
  var re = /[ac]/;
  re.exec = function () {
    execCalled = true;
    return /./.exec.apply(this, arguments);
  };
  return re.test('abc') === true && execCalled;
}();

var Error = global.Error;
var un$Test = uncurryThis(/./.test);

// `RegExp.prototype.test` method
// https://tc39.es/ecma262/#sec-regexp.prototype.test
$({ target: 'RegExp', proto: true, forced: !DELEGATES_TO_EXEC }, {
  test: function (str) {
    var exec = this.exec;
    if (!isCallable(exec)) return un$Test(this, str);
    var result = call(exec, this, str);
    if (result !== null && !isObject(result)) {
      throw new Error('RegExp exec method returned something other than an Object or null');
    }
    return !!result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.regexp.to-string.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.regexp.to-string.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var PROPER_FUNCTION_NAME = (__webpack_require__(/*! ../internals/function-name */ "./node_modules/core-js/internals/function-name.js").PROPER);
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var $toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var regExpFlags = __webpack_require__(/*! ../internals/regexp-flags */ "./node_modules/core-js/internals/regexp-flags.js");

var TO_STRING = 'toString';
var RegExpPrototype = RegExp.prototype;
var n$ToString = RegExpPrototype[TO_STRING];
var getFlags = uncurryThis(regExpFlags);

var NOT_GENERIC = fails(function () { return n$ToString.call({ source: 'a', flags: 'b' }) != '/a/b'; });
// FF44- RegExp#toString has a wrong name
var INCORRECT_NAME = PROPER_FUNCTION_NAME && n$ToString.name != TO_STRING;

// `RegExp.prototype.toString` method
// https://tc39.es/ecma262/#sec-regexp.prototype.tostring
if (NOT_GENERIC || INCORRECT_NAME) {
  redefine(RegExp.prototype, TO_STRING, function toString() {
    var R = anObject(this);
    var p = $toString(R.source);
    var rf = R.flags;
    var f = $toString(rf === undefined && isPrototypeOf(RegExpPrototype, R) && !('flags' in RegExpPrototype) ? getFlags(R) : rf);
    return '/' + p + '/' + f;
  }, { unsafe: true });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.set.js":
/*!************************************************!*\
  !*** ./node_modules/core-js/modules/es.set.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var collection = __webpack_require__(/*! ../internals/collection */ "./node_modules/core-js/internals/collection.js");
var collectionStrong = __webpack_require__(/*! ../internals/collection-strong */ "./node_modules/core-js/internals/collection-strong.js");

// `Set` constructor
// https://tc39.es/ecma262/#sec-set-objects
collection('Set', function (init) {
  return function Set() { return init(this, arguments.length ? arguments[0] : undefined); };
}, collectionStrong);


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.anchor.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.anchor.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.anchor` method
// https://tc39.es/ecma262/#sec-string.prototype.anchor
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('anchor') }, {
  anchor: function anchor(name) {
    return createHTML(this, 'a', 'name', name);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.at-alternative.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.at-alternative.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var charAt = uncurryThis(''.charAt);

var FORCED = fails(function () {
  return '𠮷'.at(-2) !== '\uD842';
});

// `String.prototype.at` method
// https://github.com/tc39/proposal-relative-indexing-method
$({ target: 'String', proto: true, forced: FORCED }, {
  at: function at(index) {
    var S = toString(requireObjectCoercible(this));
    var len = S.length;
    var relativeIndex = toIntegerOrInfinity(index);
    var k = relativeIndex >= 0 ? relativeIndex : len + relativeIndex;
    return (k < 0 || k >= len) ? undefined : charAt(S, k);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.big.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.big.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.big` method
// https://tc39.es/ecma262/#sec-string.prototype.big
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('big') }, {
  big: function big() {
    return createHTML(this, 'big', '', '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.blink.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.blink.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.blink` method
// https://tc39.es/ecma262/#sec-string.prototype.blink
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('blink') }, {
  blink: function blink() {
    return createHTML(this, 'blink', '', '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.bold.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.bold.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.bold` method
// https://tc39.es/ecma262/#sec-string.prototype.bold
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('bold') }, {
  bold: function bold() {
    return createHTML(this, 'b', '', '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.code-point-at.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.code-point-at.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var codeAt = (__webpack_require__(/*! ../internals/string-multibyte */ "./node_modules/core-js/internals/string-multibyte.js").codeAt);

// `String.prototype.codePointAt` method
// https://tc39.es/ecma262/#sec-string.prototype.codepointat
$({ target: 'String', proto: true }, {
  codePointAt: function codePointAt(pos) {
    return codeAt(this, pos);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.ends-with.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.ends-with.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var getOwnPropertyDescriptor = (__webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js").f);
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var notARegExp = __webpack_require__(/*! ../internals/not-a-regexp */ "./node_modules/core-js/internals/not-a-regexp.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var correctIsRegExpLogic = __webpack_require__(/*! ../internals/correct-is-regexp-logic */ "./node_modules/core-js/internals/correct-is-regexp-logic.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

// eslint-disable-next-line es/no-string-prototype-endswith -- safe
var un$EndsWith = uncurryThis(''.endsWith);
var slice = uncurryThis(''.slice);
var min = Math.min;

var CORRECT_IS_REGEXP_LOGIC = correctIsRegExpLogic('endsWith');
// https://github.com/zloirock/core-js/pull/702
var MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () {
  var descriptor = getOwnPropertyDescriptor(String.prototype, 'endsWith');
  return descriptor && !descriptor.writable;
}();

// `String.prototype.endsWith` method
// https://tc39.es/ecma262/#sec-string.prototype.endswith
$({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {
  endsWith: function endsWith(searchString /* , endPosition = @length */) {
    var that = toString(requireObjectCoercible(this));
    notARegExp(searchString);
    var endPosition = arguments.length > 1 ? arguments[1] : undefined;
    var len = that.length;
    var end = endPosition === undefined ? len : min(toLength(endPosition), len);
    var search = toString(searchString);
    return un$EndsWith
      ? un$EndsWith(that, search, end)
      : slice(that, end - search.length, end) === search;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.fixed.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.fixed.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.fixed` method
// https://tc39.es/ecma262/#sec-string.prototype.fixed
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('fixed') }, {
  fixed: function fixed() {
    return createHTML(this, 'tt', '', '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.fontcolor.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.fontcolor.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.fontcolor` method
// https://tc39.es/ecma262/#sec-string.prototype.fontcolor
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('fontcolor') }, {
  fontcolor: function fontcolor(color) {
    return createHTML(this, 'font', 'color', color);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.fontsize.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.fontsize.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.fontsize` method
// https://tc39.es/ecma262/#sec-string.prototype.fontsize
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('fontsize') }, {
  fontsize: function fontsize(size) {
    return createHTML(this, 'font', 'size', size);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.from-code-point.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.from-code-point.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");

var RangeError = global.RangeError;
var fromCharCode = String.fromCharCode;
// eslint-disable-next-line es/no-string-fromcodepoint -- required for testing
var $fromCodePoint = String.fromCodePoint;
var join = uncurryThis([].join);

// length should be 1, old FF problem
var INCORRECT_LENGTH = !!$fromCodePoint && $fromCodePoint.length != 1;

// `String.fromCodePoint` method
// https://tc39.es/ecma262/#sec-string.fromcodepoint
$({ target: 'String', stat: true, forced: INCORRECT_LENGTH }, {
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  fromCodePoint: function fromCodePoint(x) {
    var elements = [];
    var length = arguments.length;
    var i = 0;
    var code;
    while (length > i) {
      code = +arguments[i++];
      if (toAbsoluteIndex(code, 0x10FFFF) !== code) throw RangeError(code + ' is not a valid code point');
      elements[i] = code < 0x10000
        ? fromCharCode(code)
        : fromCharCode(((code -= 0x10000) >> 10) + 0xD800, code % 0x400 + 0xDC00);
    } return join(elements, '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.includes.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.includes.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var notARegExp = __webpack_require__(/*! ../internals/not-a-regexp */ "./node_modules/core-js/internals/not-a-regexp.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var correctIsRegExpLogic = __webpack_require__(/*! ../internals/correct-is-regexp-logic */ "./node_modules/core-js/internals/correct-is-regexp-logic.js");

var stringIndexOf = uncurryThis(''.indexOf);

// `String.prototype.includes` method
// https://tc39.es/ecma262/#sec-string.prototype.includes
$({ target: 'String', proto: true, forced: !correctIsRegExpLogic('includes') }, {
  includes: function includes(searchString /* , position = 0 */) {
    return !!~stringIndexOf(
      toString(requireObjectCoercible(this)),
      toString(notARegExp(searchString)),
      arguments.length > 1 ? arguments[1] : undefined
    );
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.italics.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.italics.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.italics` method
// https://tc39.es/ecma262/#sec-string.prototype.italics
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('italics') }, {
  italics: function italics() {
    return createHTML(this, 'i', '', '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.iterator.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.iterator.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var charAt = (__webpack_require__(/*! ../internals/string-multibyte */ "./node_modules/core-js/internals/string-multibyte.js").charAt);
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var defineIterator = __webpack_require__(/*! ../internals/define-iterator */ "./node_modules/core-js/internals/define-iterator.js");

var STRING_ITERATOR = 'String Iterator';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);

// `String.prototype[@@iterator]` method
// https://tc39.es/ecma262/#sec-string.prototype-@@iterator
defineIterator(String, 'String', function (iterated) {
  setInternalState(this, {
    type: STRING_ITERATOR,
    string: toString(iterated),
    index: 0
  });
// `%StringIteratorPrototype%.next` method
// https://tc39.es/ecma262/#sec-%stringiteratorprototype%.next
}, function next() {
  var state = getInternalState(this);
  var string = state.string;
  var index = state.index;
  var point;
  if (index >= string.length) return { value: undefined, done: true };
  point = charAt(string, index);
  state.index += point.length;
  return { value: point, done: false };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.link.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.link.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.link` method
// https://tc39.es/ecma262/#sec-string.prototype.link
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('link') }, {
  link: function link(url) {
    return createHTML(this, 'a', 'href', url);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.match-all.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.match-all.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

/* eslint-disable es/no-string-prototype-matchall -- safe */
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var createIteratorConstructor = __webpack_require__(/*! ../internals/create-iterator-constructor */ "./node_modules/core-js/internals/create-iterator-constructor.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var classof = __webpack_require__(/*! ../internals/classof-raw */ "./node_modules/core-js/internals/classof-raw.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var isRegExp = __webpack_require__(/*! ../internals/is-regexp */ "./node_modules/core-js/internals/is-regexp.js");
var regExpFlags = __webpack_require__(/*! ../internals/regexp-flags */ "./node_modules/core-js/internals/regexp-flags.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var advanceStringIndex = __webpack_require__(/*! ../internals/advance-string-index */ "./node_modules/core-js/internals/advance-string-index.js");
var regExpExec = __webpack_require__(/*! ../internals/regexp-exec-abstract */ "./node_modules/core-js/internals/regexp-exec-abstract.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

var MATCH_ALL = wellKnownSymbol('matchAll');
var REGEXP_STRING = 'RegExp String';
var REGEXP_STRING_ITERATOR = REGEXP_STRING + ' Iterator';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(REGEXP_STRING_ITERATOR);
var RegExpPrototype = RegExp.prototype;
var TypeError = global.TypeError;
var getFlags = uncurryThis(regExpFlags);
var stringIndexOf = uncurryThis(''.indexOf);
var un$MatchAll = uncurryThis(''.matchAll);

var WORKS_WITH_NON_GLOBAL_REGEX = !!un$MatchAll && !fails(function () {
  un$MatchAll('a', /./);
});

var $RegExpStringIterator = createIteratorConstructor(function RegExpStringIterator(regexp, string, $global, fullUnicode) {
  setInternalState(this, {
    type: REGEXP_STRING_ITERATOR,
    regexp: regexp,
    string: string,
    global: $global,
    unicode: fullUnicode,
    done: false
  });
}, REGEXP_STRING, function next() {
  var state = getInternalState(this);
  if (state.done) return { value: undefined, done: true };
  var R = state.regexp;
  var S = state.string;
  var match = regExpExec(R, S);
  if (match === null) return { value: undefined, done: state.done = true };
  if (state.global) {
    if (toString(match[0]) === '') R.lastIndex = advanceStringIndex(S, toLength(R.lastIndex), state.unicode);
    return { value: match, done: false };
  }
  state.done = true;
  return { value: match, done: false };
});

var $matchAll = function (string) {
  var R = anObject(this);
  var S = toString(string);
  var C, flagsValue, flags, matcher, $global, fullUnicode;
  C = speciesConstructor(R, RegExp);
  flagsValue = R.flags;
  if (flagsValue === undefined && isPrototypeOf(RegExpPrototype, R) && !('flags' in RegExpPrototype)) {
    flagsValue = getFlags(R);
  }
  flags = flagsValue === undefined ? '' : toString(flagsValue);
  matcher = new C(C === RegExp ? R.source : R, flags);
  $global = !!~stringIndexOf(flags, 'g');
  fullUnicode = !!~stringIndexOf(flags, 'u');
  matcher.lastIndex = toLength(R.lastIndex);
  return new $RegExpStringIterator(matcher, S, $global, fullUnicode);
};

// `String.prototype.matchAll` method
// https://tc39.es/ecma262/#sec-string.prototype.matchall
$({ target: 'String', proto: true, forced: WORKS_WITH_NON_GLOBAL_REGEX }, {
  matchAll: function matchAll(regexp) {
    var O = requireObjectCoercible(this);
    var flags, S, matcher, rx;
    if (regexp != null) {
      if (isRegExp(regexp)) {
        flags = toString(requireObjectCoercible('flags' in RegExpPrototype
          ? regexp.flags
          : getFlags(regexp)
        ));
        if (!~stringIndexOf(flags, 'g')) throw TypeError('`.matchAll` does not allow non-global regexes');
      }
      if (WORKS_WITH_NON_GLOBAL_REGEX) return un$MatchAll(O, regexp);
      matcher = getMethod(regexp, MATCH_ALL);
      if (matcher === undefined && IS_PURE && classof(regexp) == 'RegExp') matcher = $matchAll;
      if (matcher) return call(matcher, regexp, O);
    } else if (WORKS_WITH_NON_GLOBAL_REGEX) return un$MatchAll(O, regexp);
    S = toString(O);
    rx = new RegExp(regexp, 'g');
    return IS_PURE ? call($matchAll, rx, S) : rx[MATCH_ALL](S);
  }
});

IS_PURE || MATCH_ALL in RegExpPrototype || redefine(RegExpPrototype, MATCH_ALL, $matchAll);


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.match.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.match.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var fixRegExpWellKnownSymbolLogic = __webpack_require__(/*! ../internals/fix-regexp-well-known-symbol-logic */ "./node_modules/core-js/internals/fix-regexp-well-known-symbol-logic.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var advanceStringIndex = __webpack_require__(/*! ../internals/advance-string-index */ "./node_modules/core-js/internals/advance-string-index.js");
var regExpExec = __webpack_require__(/*! ../internals/regexp-exec-abstract */ "./node_modules/core-js/internals/regexp-exec-abstract.js");

// @@match logic
fixRegExpWellKnownSymbolLogic('match', function (MATCH, nativeMatch, maybeCallNative) {
  return [
    // `String.prototype.match` method
    // https://tc39.es/ecma262/#sec-string.prototype.match
    function match(regexp) {
      var O = requireObjectCoercible(this);
      var matcher = regexp == undefined ? undefined : getMethod(regexp, MATCH);
      return matcher ? call(matcher, regexp, O) : new RegExp(regexp)[MATCH](toString(O));
    },
    // `RegExp.prototype[@@match]` method
    // https://tc39.es/ecma262/#sec-regexp.prototype-@@match
    function (string) {
      var rx = anObject(this);
      var S = toString(string);
      var res = maybeCallNative(nativeMatch, rx, S);

      if (res.done) return res.value;

      if (!rx.global) return regExpExec(rx, S);

      var fullUnicode = rx.unicode;
      rx.lastIndex = 0;
      var A = [];
      var n = 0;
      var result;
      while ((result = regExpExec(rx, S)) !== null) {
        var matchStr = toString(result[0]);
        A[n] = matchStr;
        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
        n++;
      }
      return n === 0 ? null : A;
    }
  ];
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.pad-end.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.pad-end.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $padEnd = (__webpack_require__(/*! ../internals/string-pad */ "./node_modules/core-js/internals/string-pad.js").end);
var WEBKIT_BUG = __webpack_require__(/*! ../internals/string-pad-webkit-bug */ "./node_modules/core-js/internals/string-pad-webkit-bug.js");

// `String.prototype.padEnd` method
// https://tc39.es/ecma262/#sec-string.prototype.padend
$({ target: 'String', proto: true, forced: WEBKIT_BUG }, {
  padEnd: function padEnd(maxLength /* , fillString = ' ' */) {
    return $padEnd(this, maxLength, arguments.length > 1 ? arguments[1] : undefined);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.pad-start.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.pad-start.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $padStart = (__webpack_require__(/*! ../internals/string-pad */ "./node_modules/core-js/internals/string-pad.js").start);
var WEBKIT_BUG = __webpack_require__(/*! ../internals/string-pad-webkit-bug */ "./node_modules/core-js/internals/string-pad-webkit-bug.js");

// `String.prototype.padStart` method
// https://tc39.es/ecma262/#sec-string.prototype.padstart
$({ target: 'String', proto: true, forced: WEBKIT_BUG }, {
  padStart: function padStart(maxLength /* , fillString = ' ' */) {
    return $padStart(this, maxLength, arguments.length > 1 ? arguments[1] : undefined);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.raw.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.raw.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");

var push = uncurryThis([].push);
var join = uncurryThis([].join);

// `String.raw` method
// https://tc39.es/ecma262/#sec-string.raw
$({ target: 'String', stat: true }, {
  raw: function raw(template) {
    var rawTemplate = toIndexedObject(toObject(template).raw);
    var literalSegments = lengthOfArrayLike(rawTemplate);
    var argumentsLength = arguments.length;
    var elements = [];
    var i = 0;
    while (literalSegments > i) {
      push(elements, toString(rawTemplate[i++]));
      if (i === literalSegments) return join(elements, '');
      if (i < argumentsLength) push(elements, toString(arguments[i]));
    }
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.repeat.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.repeat.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var repeat = __webpack_require__(/*! ../internals/string-repeat */ "./node_modules/core-js/internals/string-repeat.js");

// `String.prototype.repeat` method
// https://tc39.es/ecma262/#sec-string.prototype.repeat
$({ target: 'String', proto: true }, {
  repeat: repeat
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.replace-all.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.replace-all.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isRegExp = __webpack_require__(/*! ../internals/is-regexp */ "./node_modules/core-js/internals/is-regexp.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var regExpFlags = __webpack_require__(/*! ../internals/regexp-flags */ "./node_modules/core-js/internals/regexp-flags.js");
var getSubstitution = __webpack_require__(/*! ../internals/get-substitution */ "./node_modules/core-js/internals/get-substitution.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

var REPLACE = wellKnownSymbol('replace');
var RegExpPrototype = RegExp.prototype;
var TypeError = global.TypeError;
var getFlags = uncurryThis(regExpFlags);
var indexOf = uncurryThis(''.indexOf);
var replace = uncurryThis(''.replace);
var stringSlice = uncurryThis(''.slice);
var max = Math.max;

var stringIndexOf = function (string, searchValue, fromIndex) {
  if (fromIndex > string.length) return -1;
  if (searchValue === '') return fromIndex;
  return indexOf(string, searchValue, fromIndex);
};

// `String.prototype.replaceAll` method
// https://tc39.es/ecma262/#sec-string.prototype.replaceall
$({ target: 'String', proto: true }, {
  replaceAll: function replaceAll(searchValue, replaceValue) {
    var O = requireObjectCoercible(this);
    var IS_REG_EXP, flags, replacer, string, searchString, functionalReplace, searchLength, advanceBy, replacement;
    var position = 0;
    var endOfLastMatch = 0;
    var result = '';
    if (searchValue != null) {
      IS_REG_EXP = isRegExp(searchValue);
      if (IS_REG_EXP) {
        flags = toString(requireObjectCoercible('flags' in RegExpPrototype
          ? searchValue.flags
          : getFlags(searchValue)
        ));
        if (!~indexOf(flags, 'g')) throw TypeError('`.replaceAll` does not allow non-global regexes');
      }
      replacer = getMethod(searchValue, REPLACE);
      if (replacer) {
        return call(replacer, searchValue, O, replaceValue);
      } else if (IS_PURE && IS_REG_EXP) {
        return replace(toString(O), searchValue, replaceValue);
      }
    }
    string = toString(O);
    searchString = toString(searchValue);
    functionalReplace = isCallable(replaceValue);
    if (!functionalReplace) replaceValue = toString(replaceValue);
    searchLength = searchString.length;
    advanceBy = max(1, searchLength);
    position = stringIndexOf(string, searchString, 0);
    while (position !== -1) {
      replacement = functionalReplace
        ? toString(replaceValue(searchString, position, string))
        : getSubstitution(searchString, string, position, [], undefined, replaceValue);
      result += stringSlice(string, endOfLastMatch, position) + replacement;
      endOfLastMatch = position + searchLength;
      position = stringIndexOf(string, searchString, position + advanceBy);
    }
    if (endOfLastMatch < string.length) {
      result += stringSlice(string, endOfLastMatch);
    }
    return result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.replace.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.replace.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fixRegExpWellKnownSymbolLogic = __webpack_require__(/*! ../internals/fix-regexp-well-known-symbol-logic */ "./node_modules/core-js/internals/fix-regexp-well-known-symbol-logic.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var advanceStringIndex = __webpack_require__(/*! ../internals/advance-string-index */ "./node_modules/core-js/internals/advance-string-index.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var getSubstitution = __webpack_require__(/*! ../internals/get-substitution */ "./node_modules/core-js/internals/get-substitution.js");
var regExpExec = __webpack_require__(/*! ../internals/regexp-exec-abstract */ "./node_modules/core-js/internals/regexp-exec-abstract.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var REPLACE = wellKnownSymbol('replace');
var max = Math.max;
var min = Math.min;
var concat = uncurryThis([].concat);
var push = uncurryThis([].push);
var stringIndexOf = uncurryThis(''.indexOf);
var stringSlice = uncurryThis(''.slice);

var maybeToString = function (it) {
  return it === undefined ? it : String(it);
};

// IE <= 11 replaces $0 with the whole match, as if it was $&
// https://stackoverflow.com/questions/6024666/getting-ie-to-replace-a-regex-with-the-literal-string-0
var REPLACE_KEEPS_$0 = (function () {
  // eslint-disable-next-line regexp/prefer-escape-replacement-dollar-char -- required for testing
  return 'a'.replace(/./, '$0') === '$0';
})();

// Safari <= 13.0.3(?) substitutes nth capture where n>m with an empty string
var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () {
  if (/./[REPLACE]) {
    return /./[REPLACE]('a', '$0') === '';
  }
  return false;
})();

var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
  var re = /./;
  re.exec = function () {
    var result = [];
    result.groups = { a: '7' };
    return result;
  };
  // eslint-disable-next-line regexp/no-useless-dollar-replacements -- false positive
  return ''.replace(re, '$<a>') !== '7';
});

// @@replace logic
fixRegExpWellKnownSymbolLogic('replace', function (_, nativeReplace, maybeCallNative) {
  var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0';

  return [
    // `String.prototype.replace` method
    // https://tc39.es/ecma262/#sec-string.prototype.replace
    function replace(searchValue, replaceValue) {
      var O = requireObjectCoercible(this);
      var replacer = searchValue == undefined ? undefined : getMethod(searchValue, REPLACE);
      return replacer
        ? call(replacer, searchValue, O, replaceValue)
        : call(nativeReplace, toString(O), searchValue, replaceValue);
    },
    // `RegExp.prototype[@@replace]` method
    // https://tc39.es/ecma262/#sec-regexp.prototype-@@replace
    function (string, replaceValue) {
      var rx = anObject(this);
      var S = toString(string);

      if (
        typeof replaceValue == 'string' &&
        stringIndexOf(replaceValue, UNSAFE_SUBSTITUTE) === -1 &&
        stringIndexOf(replaceValue, '$<') === -1
      ) {
        var res = maybeCallNative(nativeReplace, rx, S, replaceValue);
        if (res.done) return res.value;
      }

      var functionalReplace = isCallable(replaceValue);
      if (!functionalReplace) replaceValue = toString(replaceValue);

      var global = rx.global;
      if (global) {
        var fullUnicode = rx.unicode;
        rx.lastIndex = 0;
      }
      var results = [];
      while (true) {
        var result = regExpExec(rx, S);
        if (result === null) break;

        push(results, result);
        if (!global) break;

        var matchStr = toString(result[0]);
        if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
      }

      var accumulatedResult = '';
      var nextSourcePosition = 0;
      for (var i = 0; i < results.length; i++) {
        result = results[i];

        var matched = toString(result[0]);
        var position = max(min(toIntegerOrInfinity(result.index), S.length), 0);
        var captures = [];
        // NOTE: This is equivalent to
        //   captures = result.slice(1).map(maybeToString)
        // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
        // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
        // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
        for (var j = 1; j < result.length; j++) push(captures, maybeToString(result[j]));
        var namedCaptures = result.groups;
        if (functionalReplace) {
          var replacerArgs = concat([matched], captures, position, S);
          if (namedCaptures !== undefined) push(replacerArgs, namedCaptures);
          var replacement = toString(apply(replaceValue, undefined, replacerArgs));
        } else {
          replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
        }
        if (position >= nextSourcePosition) {
          accumulatedResult += stringSlice(S, nextSourcePosition, position) + replacement;
          nextSourcePosition = position + matched.length;
        }
      }
      return accumulatedResult + stringSlice(S, nextSourcePosition);
    }
  ];
}, !REPLACE_SUPPORTS_NAMED_GROUPS || !REPLACE_KEEPS_$0 || REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE);


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.search.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.search.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var fixRegExpWellKnownSymbolLogic = __webpack_require__(/*! ../internals/fix-regexp-well-known-symbol-logic */ "./node_modules/core-js/internals/fix-regexp-well-known-symbol-logic.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var sameValue = __webpack_require__(/*! ../internals/same-value */ "./node_modules/core-js/internals/same-value.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var regExpExec = __webpack_require__(/*! ../internals/regexp-exec-abstract */ "./node_modules/core-js/internals/regexp-exec-abstract.js");

// @@search logic
fixRegExpWellKnownSymbolLogic('search', function (SEARCH, nativeSearch, maybeCallNative) {
  return [
    // `String.prototype.search` method
    // https://tc39.es/ecma262/#sec-string.prototype.search
    function search(regexp) {
      var O = requireObjectCoercible(this);
      var searcher = regexp == undefined ? undefined : getMethod(regexp, SEARCH);
      return searcher ? call(searcher, regexp, O) : new RegExp(regexp)[SEARCH](toString(O));
    },
    // `RegExp.prototype[@@search]` method
    // https://tc39.es/ecma262/#sec-regexp.prototype-@@search
    function (string) {
      var rx = anObject(this);
      var S = toString(string);
      var res = maybeCallNative(nativeSearch, rx, S);

      if (res.done) return res.value;

      var previousLastIndex = rx.lastIndex;
      if (!sameValue(previousLastIndex, 0)) rx.lastIndex = 0;
      var result = regExpExec(rx, S);
      if (!sameValue(rx.lastIndex, previousLastIndex)) rx.lastIndex = previousLastIndex;
      return result === null ? -1 : result.index;
    }
  ];
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.small.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.small.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.small` method
// https://tc39.es/ecma262/#sec-string.prototype.small
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('small') }, {
  small: function small() {
    return createHTML(this, 'small', '', '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.split.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.split.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fixRegExpWellKnownSymbolLogic = __webpack_require__(/*! ../internals/fix-regexp-well-known-symbol-logic */ "./node_modules/core-js/internals/fix-regexp-well-known-symbol-logic.js");
var isRegExp = __webpack_require__(/*! ../internals/is-regexp */ "./node_modules/core-js/internals/is-regexp.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var advanceStringIndex = __webpack_require__(/*! ../internals/advance-string-index */ "./node_modules/core-js/internals/advance-string-index.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice-simple */ "./node_modules/core-js/internals/array-slice-simple.js");
var callRegExpExec = __webpack_require__(/*! ../internals/regexp-exec-abstract */ "./node_modules/core-js/internals/regexp-exec-abstract.js");
var regexpExec = __webpack_require__(/*! ../internals/regexp-exec */ "./node_modules/core-js/internals/regexp-exec.js");
var stickyHelpers = __webpack_require__(/*! ../internals/regexp-sticky-helpers */ "./node_modules/core-js/internals/regexp-sticky-helpers.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var UNSUPPORTED_Y = stickyHelpers.UNSUPPORTED_Y;
var MAX_UINT32 = 0xFFFFFFFF;
var min = Math.min;
var $push = [].push;
var exec = uncurryThis(/./.exec);
var push = uncurryThis($push);
var stringSlice = uncurryThis(''.slice);

// Chrome 51 has a buggy "split" implementation when RegExp#exec !== nativeExec
// Weex JS has frozen built-in prototypes, so use try / catch wrapper
var SPLIT_WORKS_WITH_OVERWRITTEN_EXEC = !fails(function () {
  // eslint-disable-next-line regexp/no-empty-group -- required for testing
  var re = /(?:)/;
  var originalExec = re.exec;
  re.exec = function () { return originalExec.apply(this, arguments); };
  var result = 'ab'.split(re);
  return result.length !== 2 || result[0] !== 'a' || result[1] !== 'b';
});

// @@split logic
fixRegExpWellKnownSymbolLogic('split', function (SPLIT, nativeSplit, maybeCallNative) {
  var internalSplit;
  if (
    'abbc'.split(/(b)*/)[1] == 'c' ||
    // eslint-disable-next-line regexp/no-empty-group -- required for testing
    'test'.split(/(?:)/, -1).length != 4 ||
    'ab'.split(/(?:ab)*/).length != 2 ||
    '.'.split(/(.?)(.?)/).length != 4 ||
    // eslint-disable-next-line regexp/no-empty-capturing-group, regexp/no-empty-group -- required for testing
    '.'.split(/()()/).length > 1 ||
    ''.split(/.?/).length
  ) {
    // based on es5-shim implementation, need to rework it
    internalSplit = function (separator, limit) {
      var string = toString(requireObjectCoercible(this));
      var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
      if (lim === 0) return [];
      if (separator === undefined) return [string];
      // If `separator` is not a regex, use native split
      if (!isRegExp(separator)) {
        return call(nativeSplit, string, separator, lim);
      }
      var output = [];
      var flags = (separator.ignoreCase ? 'i' : '') +
                  (separator.multiline ? 'm' : '') +
                  (separator.unicode ? 'u' : '') +
                  (separator.sticky ? 'y' : '');
      var lastLastIndex = 0;
      // Make `global` and avoid `lastIndex` issues by working with a copy
      var separatorCopy = new RegExp(separator.source, flags + 'g');
      var match, lastIndex, lastLength;
      while (match = call(regexpExec, separatorCopy, string)) {
        lastIndex = separatorCopy.lastIndex;
        if (lastIndex > lastLastIndex) {
          push(output, stringSlice(string, lastLastIndex, match.index));
          if (match.length > 1 && match.index < string.length) apply($push, output, arraySlice(match, 1));
          lastLength = match[0].length;
          lastLastIndex = lastIndex;
          if (output.length >= lim) break;
        }
        if (separatorCopy.lastIndex === match.index) separatorCopy.lastIndex++; // Avoid an infinite loop
      }
      if (lastLastIndex === string.length) {
        if (lastLength || !exec(separatorCopy, '')) push(output, '');
      } else push(output, stringSlice(string, lastLastIndex));
      return output.length > lim ? arraySlice(output, 0, lim) : output;
    };
  // Chakra, V8
  } else if ('0'.split(undefined, 0).length) {
    internalSplit = function (separator, limit) {
      return separator === undefined && limit === 0 ? [] : call(nativeSplit, this, separator, limit);
    };
  } else internalSplit = nativeSplit;

  return [
    // `String.prototype.split` method
    // https://tc39.es/ecma262/#sec-string.prototype.split
    function split(separator, limit) {
      var O = requireObjectCoercible(this);
      var splitter = separator == undefined ? undefined : getMethod(separator, SPLIT);
      return splitter
        ? call(splitter, separator, O, limit)
        : call(internalSplit, toString(O), separator, limit);
    },
    // `RegExp.prototype[@@split]` method
    // https://tc39.es/ecma262/#sec-regexp.prototype-@@split
    //
    // NOTE: This cannot be properly polyfilled in engines that don't support
    // the 'y' flag.
    function (string, limit) {
      var rx = anObject(this);
      var S = toString(string);
      var res = maybeCallNative(internalSplit, rx, S, limit, internalSplit !== nativeSplit);

      if (res.done) return res.value;

      var C = speciesConstructor(rx, RegExp);

      var unicodeMatching = rx.unicode;
      var flags = (rx.ignoreCase ? 'i' : '') +
                  (rx.multiline ? 'm' : '') +
                  (rx.unicode ? 'u' : '') +
                  (UNSUPPORTED_Y ? 'g' : 'y');

      // ^(? + rx + ) is needed, in combination with some S slicing, to
      // simulate the 'y' flag.
      var splitter = new C(UNSUPPORTED_Y ? '^(?:' + rx.source + ')' : rx, flags);
      var lim = limit === undefined ? MAX_UINT32 : limit >>> 0;
      if (lim === 0) return [];
      if (S.length === 0) return callRegExpExec(splitter, S) === null ? [S] : [];
      var p = 0;
      var q = 0;
      var A = [];
      while (q < S.length) {
        splitter.lastIndex = UNSUPPORTED_Y ? 0 : q;
        var z = callRegExpExec(splitter, UNSUPPORTED_Y ? stringSlice(S, q) : S);
        var e;
        if (
          z === null ||
          (e = min(toLength(splitter.lastIndex + (UNSUPPORTED_Y ? q : 0)), S.length)) === p
        ) {
          q = advanceStringIndex(S, q, unicodeMatching);
        } else {
          push(A, stringSlice(S, p, q));
          if (A.length === lim) return A;
          for (var i = 1; i <= z.length - 1; i++) {
            push(A, z[i]);
            if (A.length === lim) return A;
          }
          q = p = e;
        }
      }
      push(A, stringSlice(S, p));
      return A;
    }
  ];
}, !SPLIT_WORKS_WITH_OVERWRITTEN_EXEC, UNSUPPORTED_Y);


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.starts-with.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.starts-with.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var getOwnPropertyDescriptor = (__webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js").f);
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var notARegExp = __webpack_require__(/*! ../internals/not-a-regexp */ "./node_modules/core-js/internals/not-a-regexp.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var correctIsRegExpLogic = __webpack_require__(/*! ../internals/correct-is-regexp-logic */ "./node_modules/core-js/internals/correct-is-regexp-logic.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

// eslint-disable-next-line es/no-string-prototype-startswith -- safe
var un$StartsWith = uncurryThis(''.startsWith);
var stringSlice = uncurryThis(''.slice);
var min = Math.min;

var CORRECT_IS_REGEXP_LOGIC = correctIsRegExpLogic('startsWith');
// https://github.com/zloirock/core-js/pull/702
var MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () {
  var descriptor = getOwnPropertyDescriptor(String.prototype, 'startsWith');
  return descriptor && !descriptor.writable;
}();

// `String.prototype.startsWith` method
// https://tc39.es/ecma262/#sec-string.prototype.startswith
$({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {
  startsWith: function startsWith(searchString /* , position = 0 */) {
    var that = toString(requireObjectCoercible(this));
    notARegExp(searchString);
    var index = toLength(min(arguments.length > 1 ? arguments[1] : undefined, that.length));
    var search = toString(searchString);
    return un$StartsWith
      ? un$StartsWith(that, search, index)
      : stringSlice(that, index, index + search.length) === search;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.strike.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.strike.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.strike` method
// https://tc39.es/ecma262/#sec-string.prototype.strike
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('strike') }, {
  strike: function strike() {
    return createHTML(this, 'strike', '', '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.sub.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.sub.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.sub` method
// https://tc39.es/ecma262/#sec-string.prototype.sub
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('sub') }, {
  sub: function sub() {
    return createHTML(this, 'sub', '', '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.substr.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.substr.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");

var stringSlice = uncurryThis(''.slice);
var max = Math.max;
var min = Math.min;

// eslint-disable-next-line unicorn/prefer-string-slice -- required for testing
var FORCED = !''.substr || 'ab'.substr(-1) !== 'b';

// `String.prototype.substr` method
// https://tc39.es/ecma262/#sec-string.prototype.substr
$({ target: 'String', proto: true, forced: FORCED }, {
  substr: function substr(start, length) {
    var that = toString(requireObjectCoercible(this));
    var size = that.length;
    var intStart = toIntegerOrInfinity(start);
    var intLength, intEnd;
    if (intStart === Infinity) intStart = 0;
    if (intStart < 0) intStart = max(size + intStart, 0);
    intLength = length === undefined ? size : toIntegerOrInfinity(length);
    if (intLength <= 0 || intLength === Infinity) return '';
    intEnd = min(intStart + intLength, size);
    return intStart >= intEnd ? '' : stringSlice(that, intStart, intEnd);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.sup.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.sup.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createHTML = __webpack_require__(/*! ../internals/create-html */ "./node_modules/core-js/internals/create-html.js");
var forcedStringHTMLMethod = __webpack_require__(/*! ../internals/string-html-forced */ "./node_modules/core-js/internals/string-html-forced.js");

// `String.prototype.sup` method
// https://tc39.es/ecma262/#sec-string.prototype.sup
$({ target: 'String', proto: true, forced: forcedStringHTMLMethod('sup') }, {
  sup: function sup() {
    return createHTML(this, 'sup', '', '');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.trim-end.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.trim-end.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $trimEnd = (__webpack_require__(/*! ../internals/string-trim */ "./node_modules/core-js/internals/string-trim.js").end);
var forcedStringTrimMethod = __webpack_require__(/*! ../internals/string-trim-forced */ "./node_modules/core-js/internals/string-trim-forced.js");

var FORCED = forcedStringTrimMethod('trimEnd');

var trimEnd = FORCED ? function trimEnd() {
  return $trimEnd(this);
// eslint-disable-next-line es/no-string-prototype-trimstart-trimend -- safe
} : ''.trimEnd;

// `String.prototype.{ trimEnd, trimRight }` methods
// https://tc39.es/ecma262/#sec-string.prototype.trimend
// https://tc39.es/ecma262/#String.prototype.trimright
$({ target: 'String', proto: true, name: 'trimEnd', forced: FORCED }, {
  trimEnd: trimEnd,
  trimRight: trimEnd
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.trim-start.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.trim-start.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $trimStart = (__webpack_require__(/*! ../internals/string-trim */ "./node_modules/core-js/internals/string-trim.js").start);
var forcedStringTrimMethod = __webpack_require__(/*! ../internals/string-trim-forced */ "./node_modules/core-js/internals/string-trim-forced.js");

var FORCED = forcedStringTrimMethod('trimStart');

var trimStart = FORCED ? function trimStart() {
  return $trimStart(this);
// eslint-disable-next-line es/no-string-prototype-trimstart-trimend -- safe
} : ''.trimStart;

// `String.prototype.{ trimStart, trimLeft }` methods
// https://tc39.es/ecma262/#sec-string.prototype.trimstart
// https://tc39.es/ecma262/#String.prototype.trimleft
$({ target: 'String', proto: true, name: 'trimStart', forced: FORCED }, {
  trimStart: trimStart,
  trimLeft: trimStart
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.string.trim.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/es.string.trim.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $trim = (__webpack_require__(/*! ../internals/string-trim */ "./node_modules/core-js/internals/string-trim.js").trim);
var forcedStringTrimMethod = __webpack_require__(/*! ../internals/string-trim-forced */ "./node_modules/core-js/internals/string-trim-forced.js");

// `String.prototype.trim` method
// https://tc39.es/ecma262/#sec-string.prototype.trim
$({ target: 'String', proto: true, forced: forcedStringTrimMethod('trim') }, {
  trim: function trim() {
    return $trim(this);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.async-iterator.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.async-iterator.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.asyncIterator` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.asynciterator
defineWellKnownSymbol('asyncIterator');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.description.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.description.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";
// `Symbol.prototype.description` getter
// https://tc39.es/ecma262/#sec-symbol.prototype.description

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var copyConstructorProperties = __webpack_require__(/*! ../internals/copy-constructor-properties */ "./node_modules/core-js/internals/copy-constructor-properties.js");

var NativeSymbol = global.Symbol;
var SymbolPrototype = NativeSymbol && NativeSymbol.prototype;

if (DESCRIPTORS && isCallable(NativeSymbol) && (!('description' in SymbolPrototype) ||
  // Safari 12 bug
  NativeSymbol().description !== undefined
)) {
  var EmptyStringDescriptionStore = {};
  // wrap Symbol constructor for correct work with undefined description
  var SymbolWrapper = function Symbol() {
    var description = arguments.length < 1 || arguments[0] === undefined ? undefined : toString(arguments[0]);
    var result = isPrototypeOf(SymbolPrototype, this)
      ? new NativeSymbol(description)
      // in Edge 13, String(Symbol(undefined)) === 'Symbol(undefined)'
      : description === undefined ? NativeSymbol() : NativeSymbol(description);
    if (description === '') EmptyStringDescriptionStore[result] = true;
    return result;
  };

  copyConstructorProperties(SymbolWrapper, NativeSymbol);
  SymbolWrapper.prototype = SymbolPrototype;
  SymbolPrototype.constructor = SymbolWrapper;

  var NATIVE_SYMBOL = String(NativeSymbol('test')) == 'Symbol(test)';
  var symbolToString = uncurryThis(SymbolPrototype.toString);
  var symbolValueOf = uncurryThis(SymbolPrototype.valueOf);
  var regexp = /^Symbol\((.*)\)[^)]+$/;
  var replace = uncurryThis(''.replace);
  var stringSlice = uncurryThis(''.slice);

  defineProperty(SymbolPrototype, 'description', {
    configurable: true,
    get: function description() {
      var symbol = symbolValueOf(this);
      var string = symbolToString(symbol);
      if (hasOwn(EmptyStringDescriptionStore, symbol)) return '';
      var desc = NATIVE_SYMBOL ? stringSlice(string, 7, -1) : replace(string, regexp, '$1');
      return desc === '' ? undefined : desc;
    }
  });

  $({ global: true, forced: true }, {
    Symbol: SymbolWrapper
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.has-instance.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.has-instance.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.hasInstance` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.hasinstance
defineWellKnownSymbol('hasInstance');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.is-concat-spreadable.js":
/*!************************************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.is-concat-spreadable.js ***!
  \************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.isConcatSpreadable` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.isconcatspreadable
defineWellKnownSymbol('isConcatSpreadable');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.iterator.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.iterator.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.iterator` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.iterator
defineWellKnownSymbol('iterator');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.js":
/*!***************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var NATIVE_SYMBOL = __webpack_require__(/*! ../internals/native-symbol */ "./node_modules/core-js/internals/native-symbol.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var isArray = __webpack_require__(/*! ../internals/is-array */ "./node_modules/core-js/internals/is-array.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var isSymbol = __webpack_require__(/*! ../internals/is-symbol */ "./node_modules/core-js/internals/is-symbol.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var toPropertyKey = __webpack_require__(/*! ../internals/to-property-key */ "./node_modules/core-js/internals/to-property-key.js");
var $toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");
var nativeObjectCreate = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var objectKeys = __webpack_require__(/*! ../internals/object-keys */ "./node_modules/core-js/internals/object-keys.js");
var getOwnPropertyNamesModule = __webpack_require__(/*! ../internals/object-get-own-property-names */ "./node_modules/core-js/internals/object-get-own-property-names.js");
var getOwnPropertyNamesExternal = __webpack_require__(/*! ../internals/object-get-own-property-names-external */ "./node_modules/core-js/internals/object-get-own-property-names-external.js");
var getOwnPropertySymbolsModule = __webpack_require__(/*! ../internals/object-get-own-property-symbols */ "./node_modules/core-js/internals/object-get-own-property-symbols.js");
var getOwnPropertyDescriptorModule = __webpack_require__(/*! ../internals/object-get-own-property-descriptor */ "./node_modules/core-js/internals/object-get-own-property-descriptor.js");
var definePropertyModule = __webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js");
var definePropertiesModule = __webpack_require__(/*! ../internals/object-define-properties */ "./node_modules/core-js/internals/object-define-properties.js");
var propertyIsEnumerableModule = __webpack_require__(/*! ../internals/object-property-is-enumerable */ "./node_modules/core-js/internals/object-property-is-enumerable.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var shared = __webpack_require__(/*! ../internals/shared */ "./node_modules/core-js/internals/shared.js");
var sharedKey = __webpack_require__(/*! ../internals/shared-key */ "./node_modules/core-js/internals/shared-key.js");
var hiddenKeys = __webpack_require__(/*! ../internals/hidden-keys */ "./node_modules/core-js/internals/hidden-keys.js");
var uid = __webpack_require__(/*! ../internals/uid */ "./node_modules/core-js/internals/uid.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var wrappedWellKnownSymbolModule = __webpack_require__(/*! ../internals/well-known-symbol-wrapped */ "./node_modules/core-js/internals/well-known-symbol-wrapped.js");
var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var $forEach = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").forEach);

var HIDDEN = sharedKey('hidden');
var SYMBOL = 'Symbol';
var PROTOTYPE = 'prototype';
var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');

var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(SYMBOL);

var ObjectPrototype = Object[PROTOTYPE];
var $Symbol = global.Symbol;
var SymbolPrototype = $Symbol && $Symbol[PROTOTYPE];
var TypeError = global.TypeError;
var QObject = global.QObject;
var $stringify = getBuiltIn('JSON', 'stringify');
var nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
var nativeDefineProperty = definePropertyModule.f;
var nativeGetOwnPropertyNames = getOwnPropertyNamesExternal.f;
var nativePropertyIsEnumerable = propertyIsEnumerableModule.f;
var push = uncurryThis([].push);

var AllSymbols = shared('symbols');
var ObjectPrototypeSymbols = shared('op-symbols');
var StringToSymbolRegistry = shared('string-to-symbol-registry');
var SymbolToStringRegistry = shared('symbol-to-string-registry');
var WellKnownSymbolsStore = shared('wks');

// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
var USE_SETTER = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;

// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
var setSymbolDescriptor = DESCRIPTORS && fails(function () {
  return nativeObjectCreate(nativeDefineProperty({}, 'a', {
    get: function () { return nativeDefineProperty(this, 'a', { value: 7 }).a; }
  })).a != 7;
}) ? function (O, P, Attributes) {
  var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor(ObjectPrototype, P);
  if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];
  nativeDefineProperty(O, P, Attributes);
  if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {
    nativeDefineProperty(ObjectPrototype, P, ObjectPrototypeDescriptor);
  }
} : nativeDefineProperty;

var wrap = function (tag, description) {
  var symbol = AllSymbols[tag] = nativeObjectCreate(SymbolPrototype);
  setInternalState(symbol, {
    type: SYMBOL,
    tag: tag,
    description: description
  });
  if (!DESCRIPTORS) symbol.description = description;
  return symbol;
};

var $defineProperty = function defineProperty(O, P, Attributes) {
  if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);
  anObject(O);
  var key = toPropertyKey(P);
  anObject(Attributes);
  if (hasOwn(AllSymbols, key)) {
    if (!Attributes.enumerable) {
      if (!hasOwn(O, HIDDEN)) nativeDefineProperty(O, HIDDEN, createPropertyDescriptor(1, {}));
      O[HIDDEN][key] = true;
    } else {
      if (hasOwn(O, HIDDEN) && O[HIDDEN][key]) O[HIDDEN][key] = false;
      Attributes = nativeObjectCreate(Attributes, { enumerable: createPropertyDescriptor(0, false) });
    } return setSymbolDescriptor(O, key, Attributes);
  } return nativeDefineProperty(O, key, Attributes);
};

var $defineProperties = function defineProperties(O, Properties) {
  anObject(O);
  var properties = toIndexedObject(Properties);
  var keys = objectKeys(properties).concat($getOwnPropertySymbols(properties));
  $forEach(keys, function (key) {
    if (!DESCRIPTORS || call($propertyIsEnumerable, properties, key)) $defineProperty(O, key, properties[key]);
  });
  return O;
};

var $create = function create(O, Properties) {
  return Properties === undefined ? nativeObjectCreate(O) : $defineProperties(nativeObjectCreate(O), Properties);
};

var $propertyIsEnumerable = function propertyIsEnumerable(V) {
  var P = toPropertyKey(V);
  var enumerable = call(nativePropertyIsEnumerable, this, P);
  if (this === ObjectPrototype && hasOwn(AllSymbols, P) && !hasOwn(ObjectPrototypeSymbols, P)) return false;
  return enumerable || !hasOwn(this, P) || !hasOwn(AllSymbols, P) || hasOwn(this, HIDDEN) && this[HIDDEN][P]
    ? enumerable : true;
};

var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {
  var it = toIndexedObject(O);
  var key = toPropertyKey(P);
  if (it === ObjectPrototype && hasOwn(AllSymbols, key) && !hasOwn(ObjectPrototypeSymbols, key)) return;
  var descriptor = nativeGetOwnPropertyDescriptor(it, key);
  if (descriptor && hasOwn(AllSymbols, key) && !(hasOwn(it, HIDDEN) && it[HIDDEN][key])) {
    descriptor.enumerable = true;
  }
  return descriptor;
};

var $getOwnPropertyNames = function getOwnPropertyNames(O) {
  var names = nativeGetOwnPropertyNames(toIndexedObject(O));
  var result = [];
  $forEach(names, function (key) {
    if (!hasOwn(AllSymbols, key) && !hasOwn(hiddenKeys, key)) push(result, key);
  });
  return result;
};

var $getOwnPropertySymbols = function getOwnPropertySymbols(O) {
  var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;
  var names = nativeGetOwnPropertyNames(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));
  var result = [];
  $forEach(names, function (key) {
    if (hasOwn(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || hasOwn(ObjectPrototype, key))) {
      push(result, AllSymbols[key]);
    }
  });
  return result;
};

// `Symbol` constructor
// https://tc39.es/ecma262/#sec-symbol-constructor
if (!NATIVE_SYMBOL) {
  $Symbol = function Symbol() {
    if (isPrototypeOf(SymbolPrototype, this)) throw TypeError('Symbol is not a constructor');
    var description = !arguments.length || arguments[0] === undefined ? undefined : $toString(arguments[0]);
    var tag = uid(description);
    var setter = function (value) {
      if (this === ObjectPrototype) call(setter, ObjectPrototypeSymbols, value);
      if (hasOwn(this, HIDDEN) && hasOwn(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
      setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));
    };
    if (DESCRIPTORS && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, { configurable: true, set: setter });
    return wrap(tag, description);
  };

  SymbolPrototype = $Symbol[PROTOTYPE];

  redefine(SymbolPrototype, 'toString', function toString() {
    return getInternalState(this).tag;
  });

  redefine($Symbol, 'withoutSetter', function (description) {
    return wrap(uid(description), description);
  });

  propertyIsEnumerableModule.f = $propertyIsEnumerable;
  definePropertyModule.f = $defineProperty;
  definePropertiesModule.f = $defineProperties;
  getOwnPropertyDescriptorModule.f = $getOwnPropertyDescriptor;
  getOwnPropertyNamesModule.f = getOwnPropertyNamesExternal.f = $getOwnPropertyNames;
  getOwnPropertySymbolsModule.f = $getOwnPropertySymbols;

  wrappedWellKnownSymbolModule.f = function (name) {
    return wrap(wellKnownSymbol(name), name);
  };

  if (DESCRIPTORS) {
    // https://github.com/tc39/proposal-Symbol-description
    nativeDefineProperty(SymbolPrototype, 'description', {
      configurable: true,
      get: function description() {
        return getInternalState(this).description;
      }
    });
    if (!IS_PURE) {
      redefine(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });
    }
  }
}

$({ global: true, wrap: true, forced: !NATIVE_SYMBOL, sham: !NATIVE_SYMBOL }, {
  Symbol: $Symbol
});

$forEach(objectKeys(WellKnownSymbolsStore), function (name) {
  defineWellKnownSymbol(name);
});

$({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {
  // `Symbol.for` method
  // https://tc39.es/ecma262/#sec-symbol.for
  'for': function (key) {
    var string = $toString(key);
    if (hasOwn(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];
    var symbol = $Symbol(string);
    StringToSymbolRegistry[string] = symbol;
    SymbolToStringRegistry[symbol] = string;
    return symbol;
  },
  // `Symbol.keyFor` method
  // https://tc39.es/ecma262/#sec-symbol.keyfor
  keyFor: function keyFor(sym) {
    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol');
    if (hasOwn(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];
  },
  useSetter: function () { USE_SETTER = true; },
  useSimple: function () { USE_SETTER = false; }
});

$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL, sham: !DESCRIPTORS }, {
  // `Object.create` method
  // https://tc39.es/ecma262/#sec-object.create
  create: $create,
  // `Object.defineProperty` method
  // https://tc39.es/ecma262/#sec-object.defineproperty
  defineProperty: $defineProperty,
  // `Object.defineProperties` method
  // https://tc39.es/ecma262/#sec-object.defineproperties
  defineProperties: $defineProperties,
  // `Object.getOwnPropertyDescriptor` method
  // https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
  getOwnPropertyDescriptor: $getOwnPropertyDescriptor
});

$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL }, {
  // `Object.getOwnPropertyNames` method
  // https://tc39.es/ecma262/#sec-object.getownpropertynames
  getOwnPropertyNames: $getOwnPropertyNames,
  // `Object.getOwnPropertySymbols` method
  // https://tc39.es/ecma262/#sec-object.getownpropertysymbols
  getOwnPropertySymbols: $getOwnPropertySymbols
});

// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
// https://bugs.chromium.org/p/v8/issues/detail?id=3443
$({ target: 'Object', stat: true, forced: fails(function () { getOwnPropertySymbolsModule.f(1); }) }, {
  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
    return getOwnPropertySymbolsModule.f(toObject(it));
  }
});

// `JSON.stringify` method behavior with symbols
// https://tc39.es/ecma262/#sec-json.stringify
if ($stringify) {
  var FORCED_JSON_STRINGIFY = !NATIVE_SYMBOL || fails(function () {
    var symbol = $Symbol();
    // MS Edge converts symbol values to JSON as {}
    return $stringify([symbol]) != '[null]'
      // WebKit converts symbol values to JSON as null
      || $stringify({ a: symbol }) != '{}'
      // V8 throws on boxed symbols
      || $stringify(Object(symbol)) != '{}';
  });

  $({ target: 'JSON', stat: true, forced: FORCED_JSON_STRINGIFY }, {
    // eslint-disable-next-line no-unused-vars -- required for `.length`
    stringify: function stringify(it, replacer, space) {
      var args = arraySlice(arguments);
      var $replacer = replacer;
      if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
      if (!isArray(replacer)) replacer = function (key, value) {
        if (isCallable($replacer)) value = call($replacer, this, key, value);
        if (!isSymbol(value)) return value;
      };
      args[1] = replacer;
      return apply($stringify, null, args);
    }
  });
}

// `Symbol.prototype[@@toPrimitive]` method
// https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
if (!SymbolPrototype[TO_PRIMITIVE]) {
  var valueOf = SymbolPrototype.valueOf;
  // eslint-disable-next-line no-unused-vars -- required for .length
  redefine(SymbolPrototype, TO_PRIMITIVE, function (hint) {
    // TODO: improve hint logic
    return call(valueOf, this);
  });
}
// `Symbol.prototype[@@toStringTag]` property
// https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
setToStringTag($Symbol, SYMBOL);

hiddenKeys[HIDDEN] = true;


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.match-all.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.match-all.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.matchAll` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.matchall
defineWellKnownSymbol('matchAll');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.match.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.match.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.match` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.match
defineWellKnownSymbol('match');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.replace.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.replace.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.replace` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.replace
defineWellKnownSymbol('replace');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.search.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.search.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.search` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.search
defineWellKnownSymbol('search');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.species.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.species.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.species` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.species
defineWellKnownSymbol('species');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.split.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.split.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.split` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.split
defineWellKnownSymbol('split');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.to-primitive.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.to-primitive.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.toPrimitive` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.toprimitive
defineWellKnownSymbol('toPrimitive');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.to-string-tag.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.to-string-tag.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.toStringTag` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.tostringtag
defineWellKnownSymbol('toStringTag');


/***/ }),

/***/ "./node_modules/core-js/modules/es.symbol.unscopables.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.symbol.unscopables.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.unscopables` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.unscopables
defineWellKnownSymbol('unscopables');


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.at.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.at.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.at` method
// https://github.com/tc39/proposal-relative-indexing-method
exportTypedArrayMethod('at', function at(index) {
  var O = aTypedArray(this);
  var len = lengthOfArrayLike(O);
  var relativeIndex = toIntegerOrInfinity(index);
  var k = relativeIndex >= 0 ? relativeIndex : len + relativeIndex;
  return (k < 0 || k >= len) ? undefined : O[k];
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.copy-within.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.copy-within.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $ArrayCopyWithin = __webpack_require__(/*! ../internals/array-copy-within */ "./node_modules/core-js/internals/array-copy-within.js");

var u$ArrayCopyWithin = uncurryThis($ArrayCopyWithin);
var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.copyWithin` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.copywithin
exportTypedArrayMethod('copyWithin', function copyWithin(target, start /* , end */) {
  return u$ArrayCopyWithin(aTypedArray(this), target, start, arguments.length > 2 ? arguments[2] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.every.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.every.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $every = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").every);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.every` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.every
exportTypedArrayMethod('every', function every(callbackfn /* , thisArg */) {
  return $every(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.fill.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.fill.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var $fill = __webpack_require__(/*! ../internals/array-fill */ "./node_modules/core-js/internals/array-fill.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.fill` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.fill
exportTypedArrayMethod('fill', function fill(value /* , start, end */) {
  var length = arguments.length;
  return call(
    $fill,
    aTypedArray(this),
    value,
    length > 1 ? arguments[1] : undefined,
    length > 2 ? arguments[2] : undefined
  );
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.filter.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.filter.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $filter = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").filter);
var fromSpeciesAndList = __webpack_require__(/*! ../internals/typed-array-from-species-and-list */ "./node_modules/core-js/internals/typed-array-from-species-and-list.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.filter` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.filter
exportTypedArrayMethod('filter', function filter(callbackfn /* , thisArg */) {
  var list = $filter(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  return fromSpeciesAndList(this, list);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.find-index.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.find-index.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $findIndex = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").findIndex);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.findIndex` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.findindex
exportTypedArrayMethod('findIndex', function findIndex(predicate /* , thisArg */) {
  return $findIndex(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.find.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.find.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $find = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").find);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.find` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.find
exportTypedArrayMethod('find', function find(predicate /* , thisArg */) {
  return $find(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.float32-array.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.float32-array.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var createTypedArrayConstructor = __webpack_require__(/*! ../internals/typed-array-constructor */ "./node_modules/core-js/internals/typed-array-constructor.js");

// `Float32Array` constructor
// https://tc39.es/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Float32', function (init) {
  return function Float32Array(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.float64-array.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.float64-array.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var createTypedArrayConstructor = __webpack_require__(/*! ../internals/typed-array-constructor */ "./node_modules/core-js/internals/typed-array-constructor.js");

// `Float64Array` constructor
// https://tc39.es/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Float64', function (init) {
  return function Float64Array(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.for-each.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.for-each.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $forEach = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").forEach);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.forEach` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.foreach
exportTypedArrayMethod('forEach', function forEach(callbackfn /* , thisArg */) {
  $forEach(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.from.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.from.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS = __webpack_require__(/*! ../internals/typed-array-constructors-require-wrappers */ "./node_modules/core-js/internals/typed-array-constructors-require-wrappers.js");
var exportTypedArrayStaticMethod = (__webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js").exportTypedArrayStaticMethod);
var typedArrayFrom = __webpack_require__(/*! ../internals/typed-array-from */ "./node_modules/core-js/internals/typed-array-from.js");

// `%TypedArray%.from` method
// https://tc39.es/ecma262/#sec-%typedarray%.from
exportTypedArrayStaticMethod('from', typedArrayFrom, TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS);


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.includes.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.includes.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $includes = (__webpack_require__(/*! ../internals/array-includes */ "./node_modules/core-js/internals/array-includes.js").includes);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.includes` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.includes
exportTypedArrayMethod('includes', function includes(searchElement /* , fromIndex */) {
  return $includes(aTypedArray(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.index-of.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.index-of.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $indexOf = (__webpack_require__(/*! ../internals/array-includes */ "./node_modules/core-js/internals/array-includes.js").indexOf);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.indexOf` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.indexof
exportTypedArrayMethod('indexOf', function indexOf(searchElement /* , fromIndex */) {
  return $indexOf(aTypedArray(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.int16-array.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.int16-array.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var createTypedArrayConstructor = __webpack_require__(/*! ../internals/typed-array-constructor */ "./node_modules/core-js/internals/typed-array-constructor.js");

// `Int16Array` constructor
// https://tc39.es/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Int16', function (init) {
  return function Int16Array(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.int32-array.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.int32-array.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var createTypedArrayConstructor = __webpack_require__(/*! ../internals/typed-array-constructor */ "./node_modules/core-js/internals/typed-array-constructor.js");

// `Int32Array` constructor
// https://tc39.es/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Int32', function (init) {
  return function Int32Array(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.int8-array.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.int8-array.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var createTypedArrayConstructor = __webpack_require__(/*! ../internals/typed-array-constructor */ "./node_modules/core-js/internals/typed-array-constructor.js");

// `Int8Array` constructor
// https://tc39.es/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Int8', function (init) {
  return function Int8Array(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.iterator.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.iterator.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var ArrayIterators = __webpack_require__(/*! ../modules/es.array.iterator */ "./node_modules/core-js/modules/es.array.iterator.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var ITERATOR = wellKnownSymbol('iterator');
var Uint8Array = global.Uint8Array;
var arrayValues = uncurryThis(ArrayIterators.values);
var arrayKeys = uncurryThis(ArrayIterators.keys);
var arrayEntries = uncurryThis(ArrayIterators.entries);
var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var TypedArrayPrototype = Uint8Array && Uint8Array.prototype;

var GENERIC = !fails(function () {
  TypedArrayPrototype[ITERATOR].call([1]);
});

var ITERATOR_IS_VALUES = !!TypedArrayPrototype
  && TypedArrayPrototype.values
  && TypedArrayPrototype[ITERATOR] === TypedArrayPrototype.values
  && TypedArrayPrototype.values.name === 'values';

var typedArrayValues = function values() {
  return arrayValues(aTypedArray(this));
};

// `%TypedArray%.prototype.entries` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.entries
exportTypedArrayMethod('entries', function entries() {
  return arrayEntries(aTypedArray(this));
}, GENERIC);
// `%TypedArray%.prototype.keys` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.keys
exportTypedArrayMethod('keys', function keys() {
  return arrayKeys(aTypedArray(this));
}, GENERIC);
// `%TypedArray%.prototype.values` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.values
exportTypedArrayMethod('values', typedArrayValues, GENERIC || !ITERATOR_IS_VALUES, { name: 'values' });
// `%TypedArray%.prototype[@@iterator]` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype-@@iterator
exportTypedArrayMethod(ITERATOR, typedArrayValues, GENERIC || !ITERATOR_IS_VALUES, { name: 'values' });


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.join.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.join.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var $join = uncurryThis([].join);

// `%TypedArray%.prototype.join` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.join
exportTypedArrayMethod('join', function join(separator) {
  return $join(aTypedArray(this), separator);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.last-index-of.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.last-index-of.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var $lastIndexOf = __webpack_require__(/*! ../internals/array-last-index-of */ "./node_modules/core-js/internals/array-last-index-of.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.lastIndexOf` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.lastindexof
exportTypedArrayMethod('lastIndexOf', function lastIndexOf(searchElement /* , fromIndex */) {
  var length = arguments.length;
  return apply($lastIndexOf, aTypedArray(this), length > 1 ? [searchElement, arguments[1]] : [searchElement]);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.map.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.map.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $map = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").map);
var typedArraySpeciesConstructor = __webpack_require__(/*! ../internals/typed-array-species-constructor */ "./node_modules/core-js/internals/typed-array-species-constructor.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.map` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.map
exportTypedArrayMethod('map', function map(mapfn /* , thisArg */) {
  return $map(aTypedArray(this), mapfn, arguments.length > 1 ? arguments[1] : undefined, function (O, length) {
    return new (typedArraySpeciesConstructor(O))(length);
  });
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.of.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.of.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS = __webpack_require__(/*! ../internals/typed-array-constructors-require-wrappers */ "./node_modules/core-js/internals/typed-array-constructors-require-wrappers.js");

var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
var exportTypedArrayStaticMethod = ArrayBufferViewCore.exportTypedArrayStaticMethod;

// `%TypedArray%.of` method
// https://tc39.es/ecma262/#sec-%typedarray%.of
exportTypedArrayStaticMethod('of', function of(/* ...items */) {
  var index = 0;
  var length = arguments.length;
  var result = new (aTypedArrayConstructor(this))(length);
  while (length > index) result[index] = arguments[index++];
  return result;
}, TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS);


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.reduce-right.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.reduce-right.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $reduceRight = (__webpack_require__(/*! ../internals/array-reduce */ "./node_modules/core-js/internals/array-reduce.js").right);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.reduceRicht` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.reduceright
exportTypedArrayMethod('reduceRight', function reduceRight(callbackfn /* , initialValue */) {
  var length = arguments.length;
  return $reduceRight(aTypedArray(this), callbackfn, length, length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.reduce.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.reduce.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $reduce = (__webpack_require__(/*! ../internals/array-reduce */ "./node_modules/core-js/internals/array-reduce.js").left);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.reduce` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.reduce
exportTypedArrayMethod('reduce', function reduce(callbackfn /* , initialValue */) {
  var length = arguments.length;
  return $reduce(aTypedArray(this), callbackfn, length, length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.reverse.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.reverse.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var floor = Math.floor;

// `%TypedArray%.prototype.reverse` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.reverse
exportTypedArrayMethod('reverse', function reverse() {
  var that = this;
  var length = aTypedArray(that).length;
  var middle = floor(length / 2);
  var index = 0;
  var value;
  while (index < middle) {
    value = that[index];
    that[index++] = that[--length];
    that[length] = value;
  } return that;
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.set.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.set.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var toOffset = __webpack_require__(/*! ../internals/to-offset */ "./node_modules/core-js/internals/to-offset.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");

var RangeError = global.RangeError;
var Int8Array = global.Int8Array;
var Int8ArrayPrototype = Int8Array && Int8Array.prototype;
var $set = Int8ArrayPrototype && Int8ArrayPrototype.set;
var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

var WORKS_WITH_OBJECTS_AND_GEERIC_ON_TYPED_ARRAYS = !fails(function () {
  // eslint-disable-next-line es/no-typed-arrays -- required for testing
  var array = new Uint8ClampedArray(2);
  call($set, array, { length: 1, 0: 3 }, 1);
  return array[1] !== 3;
});

// https://bugs.chromium.org/p/v8/issues/detail?id=11294 and other
var TO_OBJECT_BUG = WORKS_WITH_OBJECTS_AND_GEERIC_ON_TYPED_ARRAYS && ArrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS && fails(function () {
  var array = new Int8Array(2);
  array.set(1);
  array.set('2', 1);
  return array[0] !== 0 || array[1] !== 2;
});

// `%TypedArray%.prototype.set` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.set
exportTypedArrayMethod('set', function set(arrayLike /* , offset */) {
  aTypedArray(this);
  var offset = toOffset(arguments.length > 1 ? arguments[1] : undefined, 1);
  var src = toIndexedObject(arrayLike);
  if (WORKS_WITH_OBJECTS_AND_GEERIC_ON_TYPED_ARRAYS) return call($set, this, src, offset);
  var length = this.length;
  var len = lengthOfArrayLike(src);
  var index = 0;
  if (len + offset > length) throw RangeError('Wrong length');
  while (index < len) this[offset + index] = src[index++];
}, !WORKS_WITH_OBJECTS_AND_GEERIC_ON_TYPED_ARRAYS || TO_OBJECT_BUG);


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.slice.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.slice.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var typedArraySpeciesConstructor = __webpack_require__(/*! ../internals/typed-array-species-constructor */ "./node_modules/core-js/internals/typed-array-species-constructor.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

var FORCED = fails(function () {
  // eslint-disable-next-line es/no-typed-arrays -- required for testing
  new Int8Array(1).slice();
});

// `%TypedArray%.prototype.slice` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.slice
exportTypedArrayMethod('slice', function slice(start, end) {
  var list = arraySlice(aTypedArray(this), start, end);
  var C = typedArraySpeciesConstructor(this);
  var index = 0;
  var length = list.length;
  var result = new C(length);
  while (length > index) result[index] = list[index++];
  return result;
}, FORCED);


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.some.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.some.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $some = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").some);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.some` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.some
exportTypedArrayMethod('some', function some(callbackfn /* , thisArg */) {
  return $some(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.sort.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.sort.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var internalSort = __webpack_require__(/*! ../internals/array-sort */ "./node_modules/core-js/internals/array-sort.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var FF = __webpack_require__(/*! ../internals/engine-ff-version */ "./node_modules/core-js/internals/engine-ff-version.js");
var IE_OR_EDGE = __webpack_require__(/*! ../internals/engine-is-ie-or-edge */ "./node_modules/core-js/internals/engine-is-ie-or-edge.js");
var V8 = __webpack_require__(/*! ../internals/engine-v8-version */ "./node_modules/core-js/internals/engine-v8-version.js");
var WEBKIT = __webpack_require__(/*! ../internals/engine-webkit-version */ "./node_modules/core-js/internals/engine-webkit-version.js");

var Array = global.Array;
var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var Uint16Array = global.Uint16Array;
var un$Sort = Uint16Array && uncurryThis(Uint16Array.prototype.sort);

// WebKit
var ACCEPT_INCORRECT_ARGUMENTS = !!un$Sort && !(fails(function () {
  un$Sort(new Uint16Array(2), null);
}) && fails(function () {
  un$Sort(new Uint16Array(2), {});
}));

var STABLE_SORT = !!un$Sort && !fails(function () {
  // feature detection can be too slow, so check engines versions
  if (V8) return V8 < 74;
  if (FF) return FF < 67;
  if (IE_OR_EDGE) return true;
  if (WEBKIT) return WEBKIT < 602;

  var array = new Uint16Array(516);
  var expected = Array(516);
  var index, mod;

  for (index = 0; index < 516; index++) {
    mod = index % 4;
    array[index] = 515 - index;
    expected[index] = index - 2 * mod + 3;
  }

  un$Sort(array, function (a, b) {
    return (a / 4 | 0) - (b / 4 | 0);
  });

  for (index = 0; index < 516; index++) {
    if (array[index] !== expected[index]) return true;
  }
});

var getSortCompare = function (comparefn) {
  return function (x, y) {
    if (comparefn !== undefined) return +comparefn(x, y) || 0;
    // eslint-disable-next-line no-self-compare -- NaN check
    if (y !== y) return -1;
    // eslint-disable-next-line no-self-compare -- NaN check
    if (x !== x) return 1;
    if (x === 0 && y === 0) return 1 / x > 0 && 1 / y < 0 ? 1 : -1;
    return x > y;
  };
};

// `%TypedArray%.prototype.sort` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.sort
exportTypedArrayMethod('sort', function sort(comparefn) {
  if (comparefn !== undefined) aCallable(comparefn);
  if (STABLE_SORT) return un$Sort(this, comparefn);

  return internalSort(aTypedArray(this), getSortCompare(comparefn));
}, !STABLE_SORT || ACCEPT_INCORRECT_ARGUMENTS);


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.subarray.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.subarray.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var toLength = __webpack_require__(/*! ../internals/to-length */ "./node_modules/core-js/internals/to-length.js");
var toAbsoluteIndex = __webpack_require__(/*! ../internals/to-absolute-index */ "./node_modules/core-js/internals/to-absolute-index.js");
var typedArraySpeciesConstructor = __webpack_require__(/*! ../internals/typed-array-species-constructor */ "./node_modules/core-js/internals/typed-array-species-constructor.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.subarray` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.subarray
exportTypedArrayMethod('subarray', function subarray(begin, end) {
  var O = aTypedArray(this);
  var length = O.length;
  var beginIndex = toAbsoluteIndex(begin, length);
  var C = typedArraySpeciesConstructor(O);
  return new C(
    O.buffer,
    O.byteOffset + beginIndex * O.BYTES_PER_ELEMENT,
    toLength((end === undefined ? length : toAbsoluteIndex(end, length)) - beginIndex)
  );
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.to-locale-string.js":
/*!*************************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.to-locale-string.js ***!
  \*************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");

var Int8Array = global.Int8Array;
var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var $toLocaleString = [].toLocaleString;

// iOS Safari 6.x fails here
var TO_LOCALE_STRING_BUG = !!Int8Array && fails(function () {
  $toLocaleString.call(new Int8Array(1));
});

var FORCED = fails(function () {
  return [1, 2].toLocaleString() != new Int8Array([1, 2]).toLocaleString();
}) || !fails(function () {
  Int8Array.prototype.toLocaleString.call([1, 2]);
});

// `%TypedArray%.prototype.toLocaleString` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.tolocalestring
exportTypedArrayMethod('toLocaleString', function toLocaleString() {
  return apply(
    $toLocaleString,
    TO_LOCALE_STRING_BUG ? arraySlice(aTypedArray(this)) : aTypedArray(this),
    arraySlice(arguments)
  );
}, FORCED);


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.to-string.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.to-string.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var exportTypedArrayMethod = (__webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js").exportTypedArrayMethod);
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");

var Uint8Array = global.Uint8Array;
var Uint8ArrayPrototype = Uint8Array && Uint8Array.prototype || {};
var arrayToString = [].toString;
var join = uncurryThis([].join);

if (fails(function () { arrayToString.call({}); })) {
  arrayToString = function toString() {
    return join(this);
  };
}

var IS_NOT_ARRAY_METHOD = Uint8ArrayPrototype.toString != arrayToString;

// `%TypedArray%.prototype.toString` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.tostring
exportTypedArrayMethod('toString', arrayToString, IS_NOT_ARRAY_METHOD);


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.uint16-array.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.uint16-array.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var createTypedArrayConstructor = __webpack_require__(/*! ../internals/typed-array-constructor */ "./node_modules/core-js/internals/typed-array-constructor.js");

// `Uint16Array` constructor
// https://tc39.es/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Uint16', function (init) {
  return function Uint16Array(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.uint32-array.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.uint32-array.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var createTypedArrayConstructor = __webpack_require__(/*! ../internals/typed-array-constructor */ "./node_modules/core-js/internals/typed-array-constructor.js");

// `Uint32Array` constructor
// https://tc39.es/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Uint32', function (init) {
  return function Uint32Array(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.uint8-array.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.uint8-array.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var createTypedArrayConstructor = __webpack_require__(/*! ../internals/typed-array-constructor */ "./node_modules/core-js/internals/typed-array-constructor.js");

// `Uint8Array` constructor
// https://tc39.es/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Uint8', function (init) {
  return function Uint8Array(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.typed-array.uint8-clamped-array.js":
/*!****************************************************************************!*\
  !*** ./node_modules/core-js/modules/es.typed-array.uint8-clamped-array.js ***!
  \****************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var createTypedArrayConstructor = __webpack_require__(/*! ../internals/typed-array-constructor */ "./node_modules/core-js/internals/typed-array-constructor.js");

// `Uint8ClampedArray` constructor
// https://tc39.es/ecma262/#sec-typedarray-objects
createTypedArrayConstructor('Uint8', function (init) {
  return function Uint8ClampedArray(data, byteOffset, length) {
    return init(this, data, byteOffset, length);
  };
}, true);


/***/ }),

/***/ "./node_modules/core-js/modules/es.unescape.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/modules/es.unescape.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");

var fromCharCode = String.fromCharCode;
var charAt = uncurryThis(''.charAt);
var exec = uncurryThis(/./.exec);
var stringSlice = uncurryThis(''.slice);

var hex2 = /^[\da-f]{2}$/i;
var hex4 = /^[\da-f]{4}$/i;

// `unescape` method
// https://tc39.es/ecma262/#sec-unescape-string
$({ global: true }, {
  unescape: function unescape(string) {
    var str = toString(string);
    var result = '';
    var length = str.length;
    var index = 0;
    var chr, part;
    while (index < length) {
      chr = charAt(str, index++);
      if (chr === '%') {
        if (charAt(str, index) === 'u') {
          part = stringSlice(str, index + 1, index + 5);
          if (exec(hex4, part)) {
            result += fromCharCode(parseInt(part, 16));
            index += 5;
            continue;
          }
        } else {
          part = stringSlice(str, index, index + 2);
          if (exec(hex2, part)) {
            result += fromCharCode(parseInt(part, 16));
            index += 2;
            continue;
          }
        }
      }
      result += chr;
    } return result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/es.weak-map.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/modules/es.weak-map.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var InternalMetadataModule = __webpack_require__(/*! ../internals/internal-metadata */ "./node_modules/core-js/internals/internal-metadata.js");
var collection = __webpack_require__(/*! ../internals/collection */ "./node_modules/core-js/internals/collection.js");
var collectionWeak = __webpack_require__(/*! ../internals/collection-weak */ "./node_modules/core-js/internals/collection-weak.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var isExtensible = __webpack_require__(/*! ../internals/object-is-extensible */ "./node_modules/core-js/internals/object-is-extensible.js");
var enforceInternalState = (__webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js").enforce);
var NATIVE_WEAK_MAP = __webpack_require__(/*! ../internals/native-weak-map */ "./node_modules/core-js/internals/native-weak-map.js");

var IS_IE11 = !global.ActiveXObject && 'ActiveXObject' in global;
var InternalWeakMap;

var wrapper = function (init) {
  return function WeakMap() {
    return init(this, arguments.length ? arguments[0] : undefined);
  };
};

// `WeakMap` constructor
// https://tc39.es/ecma262/#sec-weakmap-constructor
var $WeakMap = collection('WeakMap', wrapper, collectionWeak);

// IE11 WeakMap frozen keys fix
// We can't use feature detection because it crash some old IE builds
// https://github.com/zloirock/core-js/issues/485
if (NATIVE_WEAK_MAP && IS_IE11) {
  InternalWeakMap = collectionWeak.getConstructor(wrapper, 'WeakMap', true);
  InternalMetadataModule.enable();
  var WeakMapPrototype = $WeakMap.prototype;
  var nativeDelete = uncurryThis(WeakMapPrototype['delete']);
  var nativeHas = uncurryThis(WeakMapPrototype.has);
  var nativeGet = uncurryThis(WeakMapPrototype.get);
  var nativeSet = uncurryThis(WeakMapPrototype.set);
  redefineAll(WeakMapPrototype, {
    'delete': function (key) {
      if (isObject(key) && !isExtensible(key)) {
        var state = enforceInternalState(this);
        if (!state.frozen) state.frozen = new InternalWeakMap();
        return nativeDelete(this, key) || state.frozen['delete'](key);
      } return nativeDelete(this, key);
    },
    has: function has(key) {
      if (isObject(key) && !isExtensible(key)) {
        var state = enforceInternalState(this);
        if (!state.frozen) state.frozen = new InternalWeakMap();
        return nativeHas(this, key) || state.frozen.has(key);
      } return nativeHas(this, key);
    },
    get: function get(key) {
      if (isObject(key) && !isExtensible(key)) {
        var state = enforceInternalState(this);
        if (!state.frozen) state.frozen = new InternalWeakMap();
        return nativeHas(this, key) ? nativeGet(this, key) : state.frozen.get(key);
      } return nativeGet(this, key);
    },
    set: function set(key, value) {
      if (isObject(key) && !isExtensible(key)) {
        var state = enforceInternalState(this);
        if (!state.frozen) state.frozen = new InternalWeakMap();
        nativeHas(this, key) ? nativeSet(this, key, value) : state.frozen.set(key, value);
      } else nativeSet(this, key, value);
      return this;
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/es.weak-set.js":
/*!*****************************************************!*\
  !*** ./node_modules/core-js/modules/es.weak-set.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var collection = __webpack_require__(/*! ../internals/collection */ "./node_modules/core-js/internals/collection.js");
var collectionWeak = __webpack_require__(/*! ../internals/collection-weak */ "./node_modules/core-js/internals/collection-weak.js");

// `WeakSet` constructor
// https://tc39.es/ecma262/#sec-weakset-constructor
collection('WeakSet', function (init) {
  return function WeakSet() { return init(this, arguments.length ? arguments[0] : undefined); };
}, collectionWeak);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.aggregate-error.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.aggregate-error.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: Remove from `core-js@4`
__webpack_require__(/*! ../modules/es.aggregate-error */ "./node_modules/core-js/modules/es.aggregate-error.js");


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.at.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.at.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: Remove from `core-js@4`
__webpack_require__(/*! ../modules/es.array.at */ "./node_modules/core-js/modules/es.array.at.js");


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.filter-out.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.filter-out.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: remove from `core-js@4`
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $filterReject = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").filterReject);
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// `Array.prototype.filterOut` method
// https://github.com/tc39/proposal-array-filtering
$({ target: 'Array', proto: true, forced: true }, {
  filterOut: function filterOut(callbackfn /* , thisArg */) {
    return $filterReject(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

addToUnscopables('filterOut');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.filter-reject.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.filter-reject.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $filterReject = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").filterReject);
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// `Array.prototype.filterReject` method
// https://github.com/tc39/proposal-array-filtering
$({ target: 'Array', proto: true, forced: true }, {
  filterReject: function filterReject(callbackfn /* , thisArg */) {
    return $filterReject(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

addToUnscopables('filterReject');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.find-last-index.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.find-last-index.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $findLastIndex = (__webpack_require__(/*! ../internals/array-iteration-from-last */ "./node_modules/core-js/internals/array-iteration-from-last.js").findLastIndex);
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// `Array.prototype.findLastIndex` method
// https://github.com/tc39/proposal-array-find-from-last
$({ target: 'Array', proto: true }, {
  findLastIndex: function findLastIndex(callbackfn /* , that = undefined */) {
    return $findLastIndex(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

addToUnscopables('findLastIndex');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.find-last.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.find-last.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $findLast = (__webpack_require__(/*! ../internals/array-iteration-from-last */ "./node_modules/core-js/internals/array-iteration-from-last.js").findLast);
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// `Array.prototype.findLast` method
// https://github.com/tc39/proposal-array-find-from-last
$({ target: 'Array', proto: true }, {
  findLast: function findLast(callbackfn /* , that = undefined */) {
    return $findLast(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

addToUnscopables('findLast');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.from-async.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.from-async.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var fromAsync = __webpack_require__(/*! ../internals/array-from-async */ "./node_modules/core-js/internals/array-from-async.js");

// `Array.fromAsync` method
// https://github.com/tc39/proposal-array-from-async
$({ target: 'Array', stat: true, forced: true }, {
  fromAsync: fromAsync
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.group-by-to-map.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.group-by-to-map.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var IndexedObject = __webpack_require__(/*! ../internals/indexed-object */ "./node_modules/core-js/internals/indexed-object.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

var Map = getBuiltIn('Map');
var MapPrototype = Map.prototype;
var mapGet = uncurryThis(MapPrototype.get);
var mapHas = uncurryThis(MapPrototype.has);
var mapSet = uncurryThis(MapPrototype.set);
var push = uncurryThis([].push);

// `Array.prototype.groupByToMap` method
// https://github.com/tc39/proposal-array-grouping
$({ target: 'Array', proto: true }, {
  groupByToMap: function groupByToMap(callbackfn /* , thisArg */) {
    var O = toObject(this);
    var self = IndexedObject(O);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    var map = new Map();
    var length = lengthOfArrayLike(self);
    var index = 0;
    var key, value;
    for (;length > index; index++) {
      value = self[index];
      key = boundFunction(value, index, O);
      if (mapHas(map, key)) push(mapGet(map, key), value);
      else mapSet(map, key, [value]);
    } return map;
  }
});

addToUnscopables('groupByToMap');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.group-by.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.group-by.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $groupBy = __webpack_require__(/*! ../internals/array-group-by */ "./node_modules/core-js/internals/array-group-by.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

// `Array.prototype.groupBy` method
// https://github.com/tc39/proposal-array-grouping
$({ target: 'Array', proto: true }, {
  groupBy: function groupBy(callbackfn /* , thisArg */) {
    var thisArg = arguments.length > 1 ? arguments[1] : undefined;
    return $groupBy(this, callbackfn, thisArg);
  }
});

addToUnscopables('groupBy');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.is-template-object.js":
/*!*************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.is-template-object.js ***!
  \*************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var isArray = __webpack_require__(/*! ../internals/is-array */ "./node_modules/core-js/internals/is-array.js");

// eslint-disable-next-line es/no-object-isfrozen -- safe
var isFrozen = Object.isFrozen;

var isFrozenStringArray = function (array, allowUndefined) {
  if (!isFrozen || !isArray(array) || !isFrozen(array)) return false;
  var index = 0;
  var length = array.length;
  var element;
  while (index < length) {
    element = array[index++];
    if (!(typeof element == 'string' || (allowUndefined && typeof element == 'undefined'))) {
      return false;
    }
  } return length !== 0;
};

// `Array.isTemplateObject` method
// https://github.com/tc39/proposal-array-is-template-object
$({ target: 'Array', stat: true, sham: true, forced: true }, {
  isTemplateObject: function isTemplateObject(value) {
    if (!isFrozenStringArray(value, true)) return false;
    var raw = value.raw;
    if (raw.length !== value.length || !isFrozenStringArray(raw, false)) return false;
    return true;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.last-index.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.last-index.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);

// `Array.prototype.lastIndex` getter
// https://github.com/keithamus/proposal-array-last
if (DESCRIPTORS) {
  defineProperty(Array.prototype, 'lastIndex', {
    configurable: true,
    get: function lastIndex() {
      var O = toObject(this);
      var len = lengthOfArrayLike(O);
      return len == 0 ? 0 : len - 1;
    }
  });

  addToUnscopables('lastIndex');
}


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.last-item.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.last-item.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);

// `Array.prototype.lastIndex` accessor
// https://github.com/keithamus/proposal-array-last
if (DESCRIPTORS) {
  defineProperty(Array.prototype, 'lastItem', {
    configurable: true,
    get: function lastItem() {
      var O = toObject(this);
      var len = lengthOfArrayLike(O);
      return len == 0 ? undefined : O[len - 1];
    },
    set: function lastItem(value) {
      var O = toObject(this);
      var len = lengthOfArrayLike(O);
      return O[len == 0 ? 0 : len - 1] = value;
    }
  });

  addToUnscopables('lastItem');
}


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.to-reversed.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.to-reversed.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var arrayToReversed = __webpack_require__(/*! ../internals/array-to-reversed */ "./node_modules/core-js/internals/array-to-reversed.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

var Array = global.Array;

// `Array.prototype.toReversed` method
// https://tc39.es/proposal-change-array-by-copy/#sec-array.prototype.toReversed
$({ target: 'Array', proto: true, forced: true }, {
  toReversed: function toReversed() {
    return arrayToReversed(toIndexedObject(this), Array);
  }
});

addToUnscopables('toReversed');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.to-sorted.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.to-sorted.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var arrayFromConstructorAndList = __webpack_require__(/*! ../internals/array-from-constructor-and-list */ "./node_modules/core-js/internals/array-from-constructor-and-list.js");
var getVirtual = __webpack_require__(/*! ../internals/entry-virtual */ "./node_modules/core-js/internals/entry-virtual.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

var Array = global.Array;
var sort = uncurryThis(getVirtual('Array').sort);

// `Array.prototype.toSorted` method
// https://tc39.es/proposal-change-array-by-copy/#sec-array.prototype.toSorted
$({ target: 'Array', proto: true, forced: true }, {
  toSorted: function toSorted(compareFn) {
    if (compareFn !== undefined) aCallable(compareFn);
    var O = toIndexedObject(this);
    var A = arrayFromConstructorAndList(Array, O);
    return sort(A, compareFn);
  }
});

addToUnscopables('toSorted');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.to-spliced.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.to-spliced.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");
var arrayToSpliced = __webpack_require__(/*! ../internals/array-to-spliced */ "./node_modules/core-js/internals/array-to-spliced.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");

var Array = global.Array;

// `Array.prototype.toSpliced` method
// https://tc39.es/proposal-change-array-by-copy/#sec-array.prototype.toSpliced
$({ target: 'Array', proto: true, forced: true }, {
  // eslint-disable-next-line no-unused-vars -- required for .length
  toSpliced: function toSpliced(start, deleteCount /* , ...items */) {
    return arrayToSpliced(toIndexedObject(this), Array, arraySlice(arguments));
  }
});

addToUnscopables('toSpliced');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.unique-by.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.unique-by.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var addToUnscopables = __webpack_require__(/*! ../internals/add-to-unscopables */ "./node_modules/core-js/internals/add-to-unscopables.js");
var uniqueBy = __webpack_require__(/*! ../internals/array-unique-by */ "./node_modules/core-js/internals/array-unique-by.js");

// `Array.prototype.uniqueBy` method
// https://github.com/tc39/proposal-array-unique
$({ target: 'Array', proto: true, forced: true }, {
  uniqueBy: uniqueBy
});

addToUnscopables('uniqueBy');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.array.with.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.array.with.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var arrayWith = __webpack_require__(/*! ../internals/array-with */ "./node_modules/core-js/internals/array-with.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");

var Array = global.Array;

// `Array.prototype.with` method
// https://tc39.es/proposal-change-array-by-copy/#sec-array.prototype.with
$({ target: 'Array', proto: true, forced: true }, {
  'with': function (index, value) {
    return arrayWith(toIndexedObject(this), Array, index, value);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.as-indexed-pairs.js":
/*!********************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.as-indexed-pairs.js ***!
  \********************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var createAsyncIteratorProxy = __webpack_require__(/*! ../internals/async-iterator-create-proxy */ "./node_modules/core-js/internals/async-iterator-create-proxy.js");

var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise, args) {
  var state = this;
  var iterator = state.iterator;

  return Promise.resolve(anObject(apply(state.next, iterator, args))).then(function (step) {
    if (anObject(step).done) {
      state.done = true;
      return { done: true, value: undefined };
    }
    return { done: false, value: [state.index++, step.value] };
  });
});

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  asIndexedPairs: function asIndexedPairs() {
    return new AsyncIteratorProxy({
      iterator: anObject(this),
      index: 0
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.constructor.js":
/*!***************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.constructor.js ***!
  \***************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var AsyncIteratorPrototype = __webpack_require__(/*! ../internals/async-iterator-prototype */ "./node_modules/core-js/internals/async-iterator-prototype.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

var TO_STRING_TAG = wellKnownSymbol('toStringTag');

var AsyncIteratorConstructor = function AsyncIterator() {
  anInstance(this, AsyncIteratorPrototype);
};

AsyncIteratorConstructor.prototype = AsyncIteratorPrototype;

if (!hasOwn(AsyncIteratorPrototype, TO_STRING_TAG)) {
  createNonEnumerableProperty(AsyncIteratorPrototype, TO_STRING_TAG, 'AsyncIterator');
}

if (IS_PURE || !hasOwn(AsyncIteratorPrototype, 'constructor') || AsyncIteratorPrototype.constructor === Object) {
  createNonEnumerableProperty(AsyncIteratorPrototype, 'constructor', AsyncIteratorConstructor);
}

$({ global: true, forced: IS_PURE }, {
  AsyncIterator: AsyncIteratorConstructor
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.drop.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.drop.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toPositiveInteger = __webpack_require__(/*! ../internals/to-positive-integer */ "./node_modules/core-js/internals/to-positive-integer.js");
var createAsyncIteratorProxy = __webpack_require__(/*! ../internals/async-iterator-create-proxy */ "./node_modules/core-js/internals/async-iterator-create-proxy.js");

var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise, args) {
  var state = this;

  return new Promise(function (resolve, reject) {
    var loop = function () {
      try {
        Promise.resolve(
          anObject(apply(state.next, state.iterator, state.remaining ? [] : args))
        ).then(function (step) {
          try {
            if (anObject(step).done) {
              state.done = true;
              resolve({ done: true, value: undefined });
            } else if (state.remaining) {
              state.remaining--;
              loop();
            } else resolve({ done: false, value: step.value });
          } catch (err) { reject(err); }
        }, reject);
      } catch (error) { reject(error); }
    };

    loop();
  });
});

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  drop: function drop(limit) {
    return new AsyncIteratorProxy({
      iterator: anObject(this),
      remaining: toPositiveInteger(limit)
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.every.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.every.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $every = (__webpack_require__(/*! ../internals/async-iterator-iteration */ "./node_modules/core-js/internals/async-iterator-iteration.js").every);

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  every: function every(fn) {
    return $every(this, fn);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.filter.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.filter.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var createAsyncIteratorProxy = __webpack_require__(/*! ../internals/async-iterator-create-proxy */ "./node_modules/core-js/internals/async-iterator-create-proxy.js");

var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise, args) {
  var state = this;
  var filterer = state.filterer;

  return new Promise(function (resolve, reject) {
    var loop = function () {
      try {
        Promise.resolve(anObject(apply(state.next, state.iterator, args))).then(function (step) {
          try {
            if (anObject(step).done) {
              state.done = true;
              resolve({ done: true, value: undefined });
            } else {
              var value = step.value;
              Promise.resolve(filterer(value)).then(function (selected) {
                selected ? resolve({ done: false, value: value }) : loop();
              }, reject);
            }
          } catch (err) { reject(err); }
        }, reject);
      } catch (error) { reject(error); }
    };

    loop();
  });
});

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  filter: function filter(filterer) {
    return new AsyncIteratorProxy({
      iterator: anObject(this),
      filterer: aCallable(filterer)
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.find.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.find.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $find = (__webpack_require__(/*! ../internals/async-iterator-iteration */ "./node_modules/core-js/internals/async-iterator-iteration.js").find);

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  find: function find(fn) {
    return $find(this, fn);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.flat-map.js":
/*!************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.flat-map.js ***!
  \************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var createAsyncIteratorProxy = __webpack_require__(/*! ../internals/async-iterator-create-proxy */ "./node_modules/core-js/internals/async-iterator-create-proxy.js");
var getAsyncIterator = __webpack_require__(/*! ../internals/get-async-iterator */ "./node_modules/core-js/internals/get-async-iterator.js");

var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise) {
  var state = this;
  var mapper = state.mapper;
  var innerIterator;

  return new Promise(function (resolve, reject) {
    var outerLoop = function () {
      try {
        Promise.resolve(anObject(call(state.next, state.iterator))).then(function (step) {
          try {
            if (anObject(step).done) {
              state.done = true;
              resolve({ done: true, value: undefined });
            } else {
              Promise.resolve(mapper(step.value)).then(function (mapped) {
                try {
                  state.innerIterator = innerIterator = getAsyncIterator(mapped);
                  state.innerNext = aCallable(innerIterator.next);
                  return innerLoop();
                } catch (error2) { reject(error2); }
              }, reject);
            }
          } catch (error1) { reject(error1); }
        }, reject);
      } catch (error) { reject(error); }
    };

    var innerLoop = function () {
      if (innerIterator = state.innerIterator) {
        try {
          Promise.resolve(anObject(call(state.innerNext, innerIterator))).then(function (result) {
            try {
              if (anObject(result).done) {
                state.innerIterator = state.innerNext = null;
                outerLoop();
              } else resolve({ done: false, value: result.value });
            } catch (error1) { reject(error1); }
          }, reject);
        } catch (error) { reject(error); }
      } else outerLoop();
    };

    innerLoop();
  });
});

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  flatMap: function flatMap(mapper) {
    return new AsyncIteratorProxy({
      iterator: anObject(this),
      mapper: aCallable(mapper),
      innerIterator: null,
      innerNext: null
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.for-each.js":
/*!************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.for-each.js ***!
  \************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $forEach = (__webpack_require__(/*! ../internals/async-iterator-iteration */ "./node_modules/core-js/internals/async-iterator-iteration.js").forEach);

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  forEach: function forEach(fn) {
    return $forEach(this, fn);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.from.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.from.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var AsyncIteratorPrototype = __webpack_require__(/*! ../internals/async-iterator-prototype */ "./node_modules/core-js/internals/async-iterator-prototype.js");
var createAsyncIteratorProxy = __webpack_require__(/*! ../internals/async-iterator-create-proxy */ "./node_modules/core-js/internals/async-iterator-create-proxy.js");
var getAsyncIterator = __webpack_require__(/*! ../internals/get-async-iterator */ "./node_modules/core-js/internals/get-async-iterator.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var getIteratorMethod = __webpack_require__(/*! ../internals/get-iterator-method */ "./node_modules/core-js/internals/get-iterator-method.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var AsyncFromSyncIterator = __webpack_require__(/*! ../internals/async-from-sync-iterator */ "./node_modules/core-js/internals/async-from-sync-iterator.js");

var ASYNC_ITERATOR = wellKnownSymbol('asyncIterator');

var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise, args) {
  return anObject(apply(this.next, this.iterator, args));
}, true);

$({ target: 'AsyncIterator', stat: true, forced: true }, {
  from: function from(O) {
    var object = toObject(O);
    var usingIterator = getMethod(object, ASYNC_ITERATOR);
    var iterator;
    if (usingIterator) {
      iterator = getAsyncIterator(object, usingIterator);
      if (isPrototypeOf(AsyncIteratorPrototype, iterator)) return iterator;
    }
    if (iterator === undefined) {
      usingIterator = getIteratorMethod(object);
      if (usingIterator) return new AsyncFromSyncIterator(getIterator(object, usingIterator));
    }
    return new AsyncIteratorProxy({ iterator: iterator !== undefined ? iterator : object });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.map.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.map.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var createAsyncIteratorProxy = __webpack_require__(/*! ../internals/async-iterator-create-proxy */ "./node_modules/core-js/internals/async-iterator-create-proxy.js");

var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise, args) {
  var state = this;
  var mapper = state.mapper;

  return Promise.resolve(anObject(apply(state.next, state.iterator, args))).then(function (step) {
    if (anObject(step).done) {
      state.done = true;
      return { done: true, value: undefined };
    }
    return Promise.resolve(mapper(step.value)).then(function (value) {
      return { done: false, value: value };
    });
  });
});

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  map: function map(mapper) {
    return new AsyncIteratorProxy({
      iterator: anObject(this),
      mapper: aCallable(mapper)
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.reduce.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.reduce.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");

var Promise = getBuiltIn('Promise');
var TypeError = global.TypeError;

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  reduce: function reduce(reducer /* , initialValue */) {
    var iterator = anObject(this);
    var next = aCallable(iterator.next);
    var noInitial = arguments.length < 2;
    var accumulator = noInitial ? undefined : arguments[1];
    aCallable(reducer);

    return new Promise(function (resolve, reject) {
      var loop = function () {
        try {
          Promise.resolve(anObject(call(next, iterator))).then(function (step) {
            try {
              if (anObject(step).done) {
                noInitial ? reject(TypeError('Reduce of empty iterator with no initial value')) : resolve(accumulator);
              } else {
                var value = step.value;
                if (noInitial) {
                  noInitial = false;
                  accumulator = value;
                  loop();
                } else {
                  Promise.resolve(reducer(accumulator, value)).then(function (result) {
                    accumulator = result;
                    loop();
                  }, reject);
                }
              }
            } catch (err) { reject(err); }
          }, reject);
        } catch (error) { reject(error); }
      };

      loop();
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.some.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.some.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $some = (__webpack_require__(/*! ../internals/async-iterator-iteration */ "./node_modules/core-js/internals/async-iterator-iteration.js").some);

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  some: function some(fn) {
    return $some(this, fn);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.take.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.take.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toPositiveInteger = __webpack_require__(/*! ../internals/to-positive-integer */ "./node_modules/core-js/internals/to-positive-integer.js");
var createAsyncIteratorProxy = __webpack_require__(/*! ../internals/async-iterator-create-proxy */ "./node_modules/core-js/internals/async-iterator-create-proxy.js");

var AsyncIteratorProxy = createAsyncIteratorProxy(function (Promise, args) {
  var iterator = this.iterator;
  var returnMethod, result;
  if (!this.remaining--) {
    result = { done: true, value: undefined };
    this.done = true;
    returnMethod = iterator['return'];
    if (returnMethod !== undefined) {
      return Promise.resolve(call(returnMethod, iterator)).then(function () {
        return result;
      });
    }
    return result;
  } return apply(this.next, iterator, args);
});

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  take: function take(limit) {
    return new AsyncIteratorProxy({
      iterator: anObject(this),
      remaining: toPositiveInteger(limit)
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.async-iterator.to-array.js":
/*!************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.async-iterator.to-array.js ***!
  \************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var $toArray = (__webpack_require__(/*! ../internals/async-iterator-iteration */ "./node_modules/core-js/internals/async-iterator-iteration.js").toArray);

$({ target: 'AsyncIterator', proto: true, real: true, forced: true }, {
  toArray: function toArray() {
    return $toArray(this, undefined, []);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.bigint.range.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.bigint.range.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

/* eslint-disable es/no-bigint -- safe */
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var NumericRangeIterator = __webpack_require__(/*! ../internals/numeric-range-iterator */ "./node_modules/core-js/internals/numeric-range-iterator.js");

// `BigInt.range` method
// https://github.com/tc39/proposal-Number.range
if (typeof BigInt == 'function') {
  $({ target: 'BigInt', stat: true, forced: true }, {
    range: function range(start, end, option) {
      return new NumericRangeIterator(start, end, option, 'bigint', BigInt(0), BigInt(1));
    }
  });
}


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.composite-key.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.composite-key.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var getCompositeKeyNode = __webpack_require__(/*! ../internals/composite-key */ "./node_modules/core-js/internals/composite-key.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");

var Object = global.Object;

var initializer = function () {
  var freeze = getBuiltIn('Object', 'freeze');
  return freeze ? freeze(create(null)) : create(null);
};

// https://github.com/tc39/proposal-richer-keys/tree/master/compositeKey
$({ global: true, forced: true }, {
  compositeKey: function compositeKey() {
    return apply(getCompositeKeyNode, Object, arguments).get('object', initializer);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.composite-symbol.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.composite-symbol.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getCompositeKeyNode = __webpack_require__(/*! ../internals/composite-key */ "./node_modules/core-js/internals/composite-key.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");

// https://github.com/tc39/proposal-richer-keys/tree/master/compositeKey
$({ global: true, forced: true }, {
  compositeSymbol: function compositeSymbol() {
    if (arguments.length == 1 && typeof arguments[0] == 'string') return getBuiltIn('Symbol')['for'](arguments[0]);
    return apply(getCompositeKeyNode, null, arguments).get('symbol', getBuiltIn('Symbol'));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.function.is-callable.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.function.is-callable.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var $isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var inspectSource = __webpack_require__(/*! ../internals/inspect-source */ "./node_modules/core-js/internals/inspect-source.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");

// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
var classRegExp = /^\s*class\b/;
var exec = uncurryThis(classRegExp.exec);

var isClassConstructor = function (argument) {
  try {
    // `Function#toString` throws on some built-it function in some legacy engines
    // (for example, `DOMQuad` and similar in FF41-)
    if (!DESCRIPTORS || !exec(classRegExp, inspectSource(argument))) return false;
  } catch (error) { /* empty */ }
  var prototype = getOwnPropertyDescriptor(argument, 'prototype');
  return !!prototype && hasOwn(prototype, 'writable') && !prototype.writable;
};

// `Function.isCallable` method
// https://github.com/caitp/TC39-Proposals/blob/trunk/tc39-reflect-isconstructor-iscallable.md
$({ target: 'Function', stat: true, sham: true, forced: true }, {
  isCallable: function isCallable(argument) {
    return $isCallable(argument) && !isClassConstructor(argument);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.function.is-constructor.js":
/*!************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.function.is-constructor.js ***!
  \************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var isConstructor = __webpack_require__(/*! ../internals/is-constructor */ "./node_modules/core-js/internals/is-constructor.js");

// `Function.isConstructor` method
// https://github.com/caitp/TC39-Proposals/blob/trunk/tc39-reflect-isconstructor-iscallable.md
$({ target: 'Function', stat: true, forced: true }, {
  isConstructor: isConstructor
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.function.un-this.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.function.un-this.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");

// `Function.prototype.unThis` method
// https://github.com/js-choi/proposal-function-un-this
$({ target: 'Function', proto: true, forced: true }, {
  unThis: function unThis() {
    return uncurryThis(aCallable(this));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.global-this.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.global-this.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: Remove from `core-js@4`
__webpack_require__(/*! ../modules/es.global-this */ "./node_modules/core-js/modules/es.global-this.js");


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.as-indexed-pairs.js":
/*!**************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.as-indexed-pairs.js ***!
  \**************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var createIteratorProxy = __webpack_require__(/*! ../internals/iterator-create-proxy */ "./node_modules/core-js/internals/iterator-create-proxy.js");

var IteratorProxy = createIteratorProxy(function (args) {
  var result = anObject(apply(this.next, this.iterator, args));
  var done = this.done = !!result.done;
  if (!done) return [this.index++, result.value];
});

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  asIndexedPairs: function asIndexedPairs() {
    return new IteratorProxy({
      iterator: anObject(this),
      index: 0
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.constructor.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.constructor.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var IteratorPrototype = (__webpack_require__(/*! ../internals/iterators-core */ "./node_modules/core-js/internals/iterators-core.js").IteratorPrototype);
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

var TO_STRING_TAG = wellKnownSymbol('toStringTag');

var NativeIterator = global.Iterator;

// FF56- have non-standard global helper `Iterator`
var FORCED = IS_PURE
  || !isCallable(NativeIterator)
  || NativeIterator.prototype !== IteratorPrototype
  // FF44- non-standard `Iterator` passes previous tests
  || !fails(function () { NativeIterator({}); });

var IteratorConstructor = function Iterator() {
  anInstance(this, IteratorPrototype);
};

if (!hasOwn(IteratorPrototype, TO_STRING_TAG)) {
  createNonEnumerableProperty(IteratorPrototype, TO_STRING_TAG, 'Iterator');
}

if (FORCED || !hasOwn(IteratorPrototype, 'constructor') || IteratorPrototype.constructor === Object) {
  createNonEnumerableProperty(IteratorPrototype, 'constructor', IteratorConstructor);
}

IteratorConstructor.prototype = IteratorPrototype;

$({ global: true, forced: FORCED }, {
  Iterator: IteratorConstructor
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.drop.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.drop.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toPositiveInteger = __webpack_require__(/*! ../internals/to-positive-integer */ "./node_modules/core-js/internals/to-positive-integer.js");
var createIteratorProxy = __webpack_require__(/*! ../internals/iterator-create-proxy */ "./node_modules/core-js/internals/iterator-create-proxy.js");

var IteratorProxy = createIteratorProxy(function (args) {
  var iterator = this.iterator;
  var next = this.next;
  var result, done;
  while (this.remaining) {
    this.remaining--;
    result = anObject(call(next, iterator));
    done = this.done = !!result.done;
    if (done) return;
  }
  result = anObject(apply(next, iterator, args));
  done = this.done = !!result.done;
  if (!done) return result.value;
});

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  drop: function drop(limit) {
    return new IteratorProxy({
      iterator: anObject(this),
      remaining: toPositiveInteger(limit)
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.every.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.every.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  every: function every(fn) {
    anObject(this);
    aCallable(fn);
    return !iterate(this, function (value, stop) {
      if (!fn(value)) return stop();
    }, { IS_ITERATOR: true, INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.filter.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.filter.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var createIteratorProxy = __webpack_require__(/*! ../internals/iterator-create-proxy */ "./node_modules/core-js/internals/iterator-create-proxy.js");
var callWithSafeIterationClosing = __webpack_require__(/*! ../internals/call-with-safe-iteration-closing */ "./node_modules/core-js/internals/call-with-safe-iteration-closing.js");

var IteratorProxy = createIteratorProxy(function (args) {
  var iterator = this.iterator;
  var filterer = this.filterer;
  var next = this.next;
  var result, done, value;
  while (true) {
    result = anObject(apply(next, iterator, args));
    done = this.done = !!result.done;
    if (done) return;
    value = result.value;
    if (callWithSafeIterationClosing(iterator, filterer, value)) return value;
  }
});

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  filter: function filter(filterer) {
    return new IteratorProxy({
      iterator: anObject(this),
      filterer: aCallable(filterer)
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.find.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.find.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  find: function find(fn) {
    anObject(this);
    aCallable(fn);
    return iterate(this, function (value, stop) {
      if (fn(value)) return stop(value);
    }, { IS_ITERATOR: true, INTERRUPTED: true }).result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.flat-map.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.flat-map.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getIteratorMethod = __webpack_require__(/*! ../internals/get-iterator-method */ "./node_modules/core-js/internals/get-iterator-method.js");
var createIteratorProxy = __webpack_require__(/*! ../internals/iterator-create-proxy */ "./node_modules/core-js/internals/iterator-create-proxy.js");
var iteratorClose = __webpack_require__(/*! ../internals/iterator-close */ "./node_modules/core-js/internals/iterator-close.js");

var TypeError = global.TypeError;

var IteratorProxy = createIteratorProxy(function () {
  var iterator = this.iterator;
  var mapper = this.mapper;
  var result, mapped, iteratorMethod, innerIterator;

  while (true) {
    try {
      if (innerIterator = this.innerIterator) {
        result = anObject(call(this.innerNext, innerIterator));
        if (!result.done) return result.value;
        this.innerIterator = this.innerNext = null;
      }

      result = anObject(call(this.next, iterator));

      if (this.done = !!result.done) return;

      mapped = mapper(result.value);
      iteratorMethod = getIteratorMethod(mapped);

      if (!iteratorMethod) {
        throw TypeError('.flatMap callback should return an iterable object');
      }

      this.innerIterator = innerIterator = anObject(call(iteratorMethod, mapped));
      this.innerNext = aCallable(innerIterator.next);
    } catch (error) {
      iteratorClose(iterator, 'throw', error);
    }
  }
});

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  flatMap: function flatMap(mapper) {
    return new IteratorProxy({
      iterator: anObject(this),
      mapper: aCallable(mapper),
      innerIterator: null,
      innerNext: null
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.for-each.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.for-each.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  forEach: function forEach(fn) {
    iterate(anObject(this), fn, { IS_ITERATOR: true });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.from.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.from.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toObject = __webpack_require__(/*! ../internals/to-object */ "./node_modules/core-js/internals/to-object.js");
var isPrototypeOf = __webpack_require__(/*! ../internals/object-is-prototype-of */ "./node_modules/core-js/internals/object-is-prototype-of.js");
var IteratorPrototype = (__webpack_require__(/*! ../internals/iterators-core */ "./node_modules/core-js/internals/iterators-core.js").IteratorPrototype);
var createIteratorProxy = __webpack_require__(/*! ../internals/iterator-create-proxy */ "./node_modules/core-js/internals/iterator-create-proxy.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var getIteratorMethod = __webpack_require__(/*! ../internals/get-iterator-method */ "./node_modules/core-js/internals/get-iterator-method.js");

var IteratorProxy = createIteratorProxy(function (args) {
  var result = anObject(apply(this.next, this.iterator, args));
  var done = this.done = !!result.done;
  if (!done) return result.value;
}, true);

$({ target: 'Iterator', stat: true, forced: true }, {
  from: function from(O) {
    var object = toObject(O);
    var usingIterator = getIteratorMethod(object);
    var iterator;
    if (usingIterator) {
      iterator = getIterator(object, usingIterator);
      if (isPrototypeOf(IteratorPrototype, iterator)) return iterator;
    } else {
      iterator = object;
    } return new IteratorProxy({ iterator: iterator });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.map.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.map.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var createIteratorProxy = __webpack_require__(/*! ../internals/iterator-create-proxy */ "./node_modules/core-js/internals/iterator-create-proxy.js");
var callWithSafeIterationClosing = __webpack_require__(/*! ../internals/call-with-safe-iteration-closing */ "./node_modules/core-js/internals/call-with-safe-iteration-closing.js");

var IteratorProxy = createIteratorProxy(function (args) {
  var iterator = this.iterator;
  var result = anObject(apply(this.next, iterator, args));
  var done = this.done = !!result.done;
  if (!done) return callWithSafeIterationClosing(iterator, this.mapper, result.value);
});

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  map: function map(mapper) {
    return new IteratorProxy({
      iterator: anObject(this),
      mapper: aCallable(mapper)
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.reduce.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.reduce.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var TypeError = global.TypeError;

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  reduce: function reduce(reducer /* , initialValue */) {
    anObject(this);
    aCallable(reducer);
    var noInitial = arguments.length < 2;
    var accumulator = noInitial ? undefined : arguments[1];
    iterate(this, function (value) {
      if (noInitial) {
        noInitial = false;
        accumulator = value;
      } else {
        accumulator = reducer(accumulator, value);
      }
    }, { IS_ITERATOR: true });
    if (noInitial) throw TypeError('Reduce of empty iterator with no initial value');
    return accumulator;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.some.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.some.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  some: function some(fn) {
    anObject(this);
    aCallable(fn);
    return iterate(this, function (value, stop) {
      if (fn(value)) return stop();
    }, { IS_ITERATOR: true, INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.take.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.take.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toPositiveInteger = __webpack_require__(/*! ../internals/to-positive-integer */ "./node_modules/core-js/internals/to-positive-integer.js");
var createIteratorProxy = __webpack_require__(/*! ../internals/iterator-create-proxy */ "./node_modules/core-js/internals/iterator-create-proxy.js");
var iteratorClose = __webpack_require__(/*! ../internals/iterator-close */ "./node_modules/core-js/internals/iterator-close.js");

var IteratorProxy = createIteratorProxy(function (args) {
  var iterator = this.iterator;
  if (!this.remaining--) {
    this.done = true;
    return iteratorClose(iterator, 'normal', undefined);
  }
  var result = anObject(apply(this.next, iterator, args));
  var done = this.done = !!result.done;
  if (!done) return result.value;
});

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  take: function take(limit) {
    return new IteratorProxy({
      iterator: anObject(this),
      remaining: toPositiveInteger(limit)
    });
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.to-array.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.to-array.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var push = [].push;

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  toArray: function toArray() {
    var result = [];
    iterate(anObject(this), push, { that: result, IS_ITERATOR: true });
    return result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.iterator.to-async.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.iterator.to-async.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-iterator-helpers
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var AsyncFromSyncIterator = __webpack_require__(/*! ../internals/async-from-sync-iterator */ "./node_modules/core-js/internals/async-from-sync-iterator.js");

$({ target: 'Iterator', proto: true, real: true, forced: true }, {
  toAsync: function toAsync() {
    return new AsyncFromSyncIterator(this);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.delete-all.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.delete-all.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var deleteAll = __webpack_require__(/*! ../internals/collection-delete-all */ "./node_modules/core-js/internals/collection-delete-all.js");

// `Map.prototype.deleteAll` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  deleteAll: deleteAll
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.emplace.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.emplace.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var emplace = __webpack_require__(/*! ../internals/map-emplace */ "./node_modules/core-js/internals/map-emplace.js");

// `Map.prototype.emplace` method
// https://github.com/thumbsupep/proposal-upsert
$({ target: 'Map', proto: true, real: true, forced: true }, {
  emplace: emplace
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.every.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.every.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Map.prototype.every` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  every: function every(callbackfn /* , thisArg */) {
    var map = anObject(this);
    var iterator = getMapIterator(map);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    return !iterate(iterator, function (key, value, stop) {
      if (!boundFunction(value, key, map)) return stop();
    }, { AS_ENTRIES: true, IS_ITERATOR: true, INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.filter.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.filter.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Map.prototype.filter` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  filter: function filter(callbackfn /* , thisArg */) {
    var map = anObject(this);
    var iterator = getMapIterator(map);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    var newMap = new (speciesConstructor(map, getBuiltIn('Map')))();
    var setter = aCallable(newMap.set);
    iterate(iterator, function (key, value) {
      if (boundFunction(value, key, map)) call(setter, newMap, key, value);
    }, { AS_ENTRIES: true, IS_ITERATOR: true });
    return newMap;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.find-key.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.find-key.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Map.prototype.findKey` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  findKey: function findKey(callbackfn /* , thisArg */) {
    var map = anObject(this);
    var iterator = getMapIterator(map);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    return iterate(iterator, function (key, value, stop) {
      if (boundFunction(value, key, map)) return stop(key);
    }, { AS_ENTRIES: true, IS_ITERATOR: true, INTERRUPTED: true }).result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.find.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.find.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Map.prototype.find` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  find: function find(callbackfn /* , thisArg */) {
    var map = anObject(this);
    var iterator = getMapIterator(map);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    return iterate(iterator, function (key, value, stop) {
      if (boundFunction(value, key, map)) return stop(value);
    }, { AS_ENTRIES: true, IS_ITERATOR: true, INTERRUPTED: true }).result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.from.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.from.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var from = __webpack_require__(/*! ../internals/collection-from */ "./node_modules/core-js/internals/collection-from.js");

// `Map.from` method
// https://tc39.github.io/proposal-setmap-offrom/#sec-map.from
$({ target: 'Map', stat: true, forced: true }, {
  from: from
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.group-by.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.group-by.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

var push = uncurryThis([].push);

// `Map.groupBy` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', stat: true, forced: true }, {
  groupBy: function groupBy(iterable, keyDerivative) {
    aCallable(keyDerivative);
    var iterator = getIterator(iterable);
    var newMap = new this();
    var has = aCallable(newMap.has);
    var get = aCallable(newMap.get);
    var set = aCallable(newMap.set);
    iterate(iterator, function (element) {
      var derivedKey = keyDerivative(element);
      if (!call(has, newMap, derivedKey)) call(set, newMap, derivedKey, [element]);
      else push(call(get, newMap, derivedKey), element);
    }, { IS_ITERATOR: true });
    return newMap;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.includes.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.includes.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var sameValueZero = __webpack_require__(/*! ../internals/same-value-zero */ "./node_modules/core-js/internals/same-value-zero.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Map.prototype.includes` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  includes: function includes(searchElement) {
    return iterate(getMapIterator(anObject(this)), function (key, value, stop) {
      if (sameValueZero(value, searchElement)) return stop();
    }, { AS_ENTRIES: true, IS_ITERATOR: true, INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.key-by.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.key-by.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");

// `Map.keyBy` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', stat: true, forced: true }, {
  keyBy: function keyBy(iterable, keyDerivative) {
    var newMap = new this();
    aCallable(keyDerivative);
    var setter = aCallable(newMap.set);
    iterate(iterable, function (element) {
      call(setter, newMap, keyDerivative(element), element);
    });
    return newMap;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.key-of.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.key-of.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Map.prototype.keyOf` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  keyOf: function keyOf(searchElement) {
    return iterate(getMapIterator(anObject(this)), function (key, value, stop) {
      if (value === searchElement) return stop(key);
    }, { AS_ENTRIES: true, IS_ITERATOR: true, INTERRUPTED: true }).result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.map-keys.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.map-keys.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Map.prototype.mapKeys` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  mapKeys: function mapKeys(callbackfn /* , thisArg */) {
    var map = anObject(this);
    var iterator = getMapIterator(map);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    var newMap = new (speciesConstructor(map, getBuiltIn('Map')))();
    var setter = aCallable(newMap.set);
    iterate(iterator, function (key, value) {
      call(setter, newMap, boundFunction(value, key, map), value);
    }, { AS_ENTRIES: true, IS_ITERATOR: true });
    return newMap;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.map-values.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.map-values.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Map.prototype.mapValues` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  mapValues: function mapValues(callbackfn /* , thisArg */) {
    var map = anObject(this);
    var iterator = getMapIterator(map);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    var newMap = new (speciesConstructor(map, getBuiltIn('Map')))();
    var setter = aCallable(newMap.set);
    iterate(iterator, function (key, value) {
      call(setter, newMap, key, boundFunction(value, key, map));
    }, { AS_ENTRIES: true, IS_ITERATOR: true });
    return newMap;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.merge.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.merge.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Map.prototype.merge` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  merge: function merge(iterable /* ...iterables */) {
    var map = anObject(this);
    var setter = aCallable(map.set);
    var argumentsLength = arguments.length;
    var i = 0;
    while (i < argumentsLength) {
      iterate(arguments[i++], setter, { that: map, AS_ENTRIES: true });
    }
    return map;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.of.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.of.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var of = __webpack_require__(/*! ../internals/collection-of */ "./node_modules/core-js/internals/collection-of.js");

// `Map.of` method
// https://tc39.github.io/proposal-setmap-offrom/#sec-map.of
$({ target: 'Map', stat: true, forced: true }, {
  of: of
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.reduce.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.reduce.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

var TypeError = global.TypeError;

// `Map.prototype.reduce` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  reduce: function reduce(callbackfn /* , initialValue */) {
    var map = anObject(this);
    var iterator = getMapIterator(map);
    var noInitial = arguments.length < 2;
    var accumulator = noInitial ? undefined : arguments[1];
    aCallable(callbackfn);
    iterate(iterator, function (key, value) {
      if (noInitial) {
        noInitial = false;
        accumulator = value;
      } else {
        accumulator = callbackfn(accumulator, value, key, map);
      }
    }, { AS_ENTRIES: true, IS_ITERATOR: true });
    if (noInitial) throw TypeError('Reduce of empty map with no initial value');
    return accumulator;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.some.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.some.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var getMapIterator = __webpack_require__(/*! ../internals/get-map-iterator */ "./node_modules/core-js/internals/get-map-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.some` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  some: function some(callbackfn /* , thisArg */) {
    var map = anObject(this);
    var iterator = getMapIterator(map);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    return iterate(iterator, function (key, value, stop) {
      if (boundFunction(value, key, map)) return stop();
    }, { AS_ENTRIES: true, IS_ITERATOR: true, INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.update-or-insert.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.update-or-insert.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: remove from `core-js@4`
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var upsert = __webpack_require__(/*! ../internals/map-upsert */ "./node_modules/core-js/internals/map-upsert.js");

// `Map.prototype.updateOrInsert` method (replaced by `Map.prototype.emplace`)
// https://github.com/thumbsupep/proposal-upsert
$({ target: 'Map', proto: true, real: true, name: 'upsert', forced: true }, {
  updateOrInsert: upsert
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.update.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.update.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");

var TypeError = global.TypeError;

// `Set.prototype.update` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  update: function update(key, callback /* , thunk */) {
    var map = anObject(this);
    var get = aCallable(map.get);
    var has = aCallable(map.has);
    var set = aCallable(map.set);
    var length = arguments.length;
    aCallable(callback);
    var isPresentInMap = call(has, map, key);
    if (!isPresentInMap && length < 3) {
      throw TypeError('Updating absent value');
    }
    var value = isPresentInMap ? call(get, map, key) : aCallable(length > 2 ? arguments[2] : undefined)(key, map);
    call(set, map, key, callback(value, key, map));
    return map;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.map.upsert.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.map.upsert.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: remove from `core-js@4`
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var upsert = __webpack_require__(/*! ../internals/map-upsert */ "./node_modules/core-js/internals/map-upsert.js");

// `Map.prototype.upsert` method (replaced by `Map.prototype.emplace`)
// https://github.com/thumbsupep/proposal-upsert
$({ target: 'Map', proto: true, real: true, forced: true }, {
  upsert: upsert
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.clamp.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.clamp.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

var min = Math.min;
var max = Math.max;

// `Math.clamp` method
// https://rwaldron.github.io/proposal-math-extensions/
$({ target: 'Math', stat: true, forced: true }, {
  clamp: function clamp(x, lower, upper) {
    return min(upper, max(lower, x));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.deg-per-rad.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.deg-per-rad.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Math.DEG_PER_RAD` constant
// https://rwaldron.github.io/proposal-math-extensions/
$({ target: 'Math', stat: true, forced: true }, {
  DEG_PER_RAD: Math.PI / 180
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.degrees.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.degrees.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

var RAD_PER_DEG = 180 / Math.PI;

// `Math.degrees` method
// https://rwaldron.github.io/proposal-math-extensions/
$({ target: 'Math', stat: true, forced: true }, {
  degrees: function degrees(radians) {
    return radians * RAD_PER_DEG;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.fscale.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.fscale.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

var scale = __webpack_require__(/*! ../internals/math-scale */ "./node_modules/core-js/internals/math-scale.js");
var fround = __webpack_require__(/*! ../internals/math-fround */ "./node_modules/core-js/internals/math-fround.js");

// `Math.fscale` method
// https://rwaldron.github.io/proposal-math-extensions/
$({ target: 'Math', stat: true, forced: true }, {
  fscale: function fscale(x, inLow, inHigh, outLow, outHigh) {
    return fround(scale(x, inLow, inHigh, outLow, outHigh));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.iaddh.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.iaddh.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Math.iaddh` method
// https://gist.github.com/BrendanEich/4294d5c212a6d2254703
// TODO: Remove from `core-js@4`
$({ target: 'Math', stat: true, forced: true }, {
  iaddh: function iaddh(x0, x1, y0, y1) {
    var $x0 = x0 >>> 0;
    var $x1 = x1 >>> 0;
    var $y0 = y0 >>> 0;
    return $x1 + (y1 >>> 0) + (($x0 & $y0 | ($x0 | $y0) & ~($x0 + $y0 >>> 0)) >>> 31) | 0;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.imulh.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.imulh.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Math.imulh` method
// https://gist.github.com/BrendanEich/4294d5c212a6d2254703
// TODO: Remove from `core-js@4`
$({ target: 'Math', stat: true, forced: true }, {
  imulh: function imulh(u, v) {
    var UINT16 = 0xFFFF;
    var $u = +u;
    var $v = +v;
    var u0 = $u & UINT16;
    var v0 = $v & UINT16;
    var u1 = $u >> 16;
    var v1 = $v >> 16;
    var t = (u1 * v0 >>> 0) + (u0 * v0 >>> 16);
    return u1 * v1 + (t >> 16) + ((u0 * v1 >>> 0) + (t & UINT16) >> 16);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.isubh.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.isubh.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Math.isubh` method
// https://gist.github.com/BrendanEich/4294d5c212a6d2254703
// TODO: Remove from `core-js@4`
$({ target: 'Math', stat: true, forced: true }, {
  isubh: function isubh(x0, x1, y0, y1) {
    var $x0 = x0 >>> 0;
    var $x1 = x1 >>> 0;
    var $y0 = y0 >>> 0;
    return $x1 - (y1 >>> 0) - ((~$x0 & $y0 | ~($x0 ^ $y0) & $x0 - $y0 >>> 0) >>> 31) | 0;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.rad-per-deg.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.rad-per-deg.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Math.RAD_PER_DEG` constant
// https://rwaldron.github.io/proposal-math-extensions/
$({ target: 'Math', stat: true, forced: true }, {
  RAD_PER_DEG: 180 / Math.PI
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.radians.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.radians.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

var DEG_PER_RAD = Math.PI / 180;

// `Math.radians` method
// https://rwaldron.github.io/proposal-math-extensions/
$({ target: 'Math', stat: true, forced: true }, {
  radians: function radians(degrees) {
    return degrees * DEG_PER_RAD;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.scale.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.scale.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var scale = __webpack_require__(/*! ../internals/math-scale */ "./node_modules/core-js/internals/math-scale.js");

// `Math.scale` method
// https://rwaldron.github.io/proposal-math-extensions/
$({ target: 'Math', stat: true, forced: true }, {
  scale: scale
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.seeded-prng.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.seeded-prng.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var numberIsFinite = __webpack_require__(/*! ../internals/number-is-finite */ "./node_modules/core-js/internals/number-is-finite.js");
var createIteratorConstructor = __webpack_require__(/*! ../internals/create-iterator-constructor */ "./node_modules/core-js/internals/create-iterator-constructor.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");

var SEEDED_RANDOM = 'Seeded Random';
var SEEDED_RANDOM_GENERATOR = SEEDED_RANDOM + ' Generator';
var SEED_TYPE_ERROR = 'Math.seededPRNG() argument should have a "seed" field with a finite value.';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(SEEDED_RANDOM_GENERATOR);
var TypeError = global.TypeError;

var $SeededRandomGenerator = createIteratorConstructor(function SeededRandomGenerator(seed) {
  setInternalState(this, {
    type: SEEDED_RANDOM_GENERATOR,
    seed: seed % 2147483647
  });
}, SEEDED_RANDOM, function next() {
  var state = getInternalState(this);
  var seed = state.seed = (state.seed * 1103515245 + 12345) % 2147483647;
  return { value: (seed & 1073741823) / 1073741823, done: false };
});

// `Math.seededPRNG` method
// https://github.com/tc39/proposal-seeded-random
// based on https://github.com/tc39/proposal-seeded-random/blob/78b8258835b57fc2100d076151ab506bc3202ae6/demo.html
$({ target: 'Math', stat: true, forced: true }, {
  seededPRNG: function seededPRNG(it) {
    var seed = anObject(it).seed;
    if (!numberIsFinite(seed)) throw TypeError(SEED_TYPE_ERROR);
    return new $SeededRandomGenerator(seed);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.signbit.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.signbit.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Math.signbit` method
// https://github.com/tc39/proposal-Math.signbit
$({ target: 'Math', stat: true, forced: true }, {
  signbit: function signbit(x) {
    return (x = +x) == x && x == 0 ? 1 / x == -Infinity : x < 0;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.math.umulh.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.math.umulh.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");

// `Math.umulh` method
// https://gist.github.com/BrendanEich/4294d5c212a6d2254703
// TODO: Remove from `core-js@4`
$({ target: 'Math', stat: true, forced: true }, {
  umulh: function umulh(u, v) {
    var UINT16 = 0xFFFF;
    var $u = +u;
    var $v = +v;
    var u0 = $u & UINT16;
    var v0 = $v & UINT16;
    var u1 = $u >>> 16;
    var v1 = $v >>> 16;
    var t = (u1 * v0 >>> 0) + (u0 * v0 >>> 16);
    return u1 * v1 + (t >>> 16) + ((u0 * v1 >>> 0) + (t & UINT16) >>> 16);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.number.from-string.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.number.from-string.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var parseInt = __webpack_require__(/*! ../internals/number-parse-int */ "./node_modules/core-js/internals/number-parse-int.js");

var INVALID_NUMBER_REPRESENTATION = 'Invalid number representation';
var INVALID_RADIX = 'Invalid radix';
var RangeError = global.RangeError;
var SyntaxError = global.SyntaxError;
var TypeError = global.TypeError;
var valid = /^[\da-z]+$/;
var charAt = uncurryThis(''.charAt);
var exec = uncurryThis(valid.exec);
var numberToString = uncurryThis(1.0.toString);
var stringSlice = uncurryThis(''.slice);

// `Number.fromString` method
// https://github.com/tc39/proposal-number-fromstring
$({ target: 'Number', stat: true, forced: true }, {
  fromString: function fromString(string, radix) {
    var sign = 1;
    var R, mathNum;
    if (typeof string != 'string') throw TypeError(INVALID_NUMBER_REPRESENTATION);
    if (!string.length) throw SyntaxError(INVALID_NUMBER_REPRESENTATION);
    if (charAt(string, 0) == '-') {
      sign = -1;
      string = stringSlice(string, 1);
      if (!string.length) throw SyntaxError(INVALID_NUMBER_REPRESENTATION);
    }
    R = radix === undefined ? 10 : toIntegerOrInfinity(radix);
    if (R < 2 || R > 36) throw RangeError(INVALID_RADIX);
    if (!exec(valid, string) || numberToString(mathNum = parseInt(string, R), R) !== string) {
      throw SyntaxError(INVALID_NUMBER_REPRESENTATION);
    }
    return sign * mathNum;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.number.range.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.number.range.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var NumericRangeIterator = __webpack_require__(/*! ../internals/numeric-range-iterator */ "./node_modules/core-js/internals/numeric-range-iterator.js");

// `Number.range` method
// https://github.com/tc39/proposal-Number.range
$({ target: 'Number', stat: true, forced: true }, {
  range: function range(start, end, option) {
    return new NumericRangeIterator(start, end, option, 'number', 0, 1);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.object.has-own.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.object.has-own.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: Remove from `core-js@4`
__webpack_require__(/*! ../modules/es.object.has-own */ "./node_modules/core-js/modules/es.object.has-own.js");


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.object.iterate-entries.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.object.iterate-entries.js ***!
  \***********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ObjectIterator = __webpack_require__(/*! ../internals/object-iterator */ "./node_modules/core-js/internals/object-iterator.js");

// `Object.iterateEntries` method
// https://github.com/tc39/proposal-object-iteration
$({ target: 'Object', stat: true, forced: true }, {
  iterateEntries: function iterateEntries(object) {
    return new ObjectIterator(object, 'entries');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.object.iterate-keys.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.object.iterate-keys.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ObjectIterator = __webpack_require__(/*! ../internals/object-iterator */ "./node_modules/core-js/internals/object-iterator.js");

// `Object.iterateKeys` method
// https://github.com/tc39/proposal-object-iteration
$({ target: 'Object', stat: true, forced: true }, {
  iterateKeys: function iterateKeys(object) {
    return new ObjectIterator(object, 'keys');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.object.iterate-values.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.object.iterate-values.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ObjectIterator = __webpack_require__(/*! ../internals/object-iterator */ "./node_modules/core-js/internals/object-iterator.js");

// `Object.iterateValues` method
// https://github.com/tc39/proposal-object-iteration
$({ target: 'Object', stat: true, forced: true }, {
  iterateValues: function iterateValues(object) {
    return new ObjectIterator(object, 'values');
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.observable.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.observable.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// https://github.com/tc39/proposal-observable
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var setSpecies = __webpack_require__(/*! ../internals/set-species */ "./node_modules/core-js/internals/set-species.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isConstructor = __webpack_require__(/*! ../internals/is-constructor */ "./node_modules/core-js/internals/is-constructor.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var getMethod = __webpack_require__(/*! ../internals/get-method */ "./node_modules/core-js/internals/get-method.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var hostReportErrors = __webpack_require__(/*! ../internals/host-report-errors */ "./node_modules/core-js/internals/host-report-errors.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");

var $$OBSERVABLE = wellKnownSymbol('observable');
var OBSERVABLE = 'Observable';
var SUBSCRIPTION = 'Subscription';
var SUBSCRIPTION_OBSERVER = 'SubscriptionObserver';
var getterFor = InternalStateModule.getterFor;
var setInternalState = InternalStateModule.set;
var getObservableInternalState = getterFor(OBSERVABLE);
var getSubscriptionInternalState = getterFor(SUBSCRIPTION);
var getSubscriptionObserverInternalState = getterFor(SUBSCRIPTION_OBSERVER);
var Array = global.Array;
var NativeObservable = global.Observable;
var NativeObservablePrototype = NativeObservable && NativeObservable.prototype;

var FORCED = !isCallable(NativeObservable)
  || !isCallable(NativeObservable.from)
  || !isCallable(NativeObservable.of)
  || !isCallable(NativeObservablePrototype.subscribe)
  || !isCallable(NativeObservablePrototype[$$OBSERVABLE]);

var SubscriptionState = function (observer) {
  this.observer = anObject(observer);
  this.cleanup = undefined;
  this.subscriptionObserver = undefined;
};

SubscriptionState.prototype = {
  type: SUBSCRIPTION,
  clean: function () {
    var cleanup = this.cleanup;
    if (cleanup) {
      this.cleanup = undefined;
      try {
        cleanup();
      } catch (error) {
        hostReportErrors(error);
      }
    }
  },
  close: function () {
    if (!DESCRIPTORS) {
      var subscription = this.facade;
      var subscriptionObserver = this.subscriptionObserver;
      subscription.closed = true;
      if (subscriptionObserver) subscriptionObserver.closed = true;
    } this.observer = undefined;
  },
  isClosed: function () {
    return this.observer === undefined;
  }
};

var Subscription = function (observer, subscriber) {
  var subscriptionState = setInternalState(this, new SubscriptionState(observer));
  var start;
  if (!DESCRIPTORS) this.closed = false;
  try {
    if (start = getMethod(observer, 'start')) call(start, observer, this);
  } catch (error) {
    hostReportErrors(error);
  }
  if (subscriptionState.isClosed()) return;
  var subscriptionObserver = subscriptionState.subscriptionObserver = new SubscriptionObserver(subscriptionState);
  try {
    var cleanup = subscriber(subscriptionObserver);
    var subscription = cleanup;
    if (cleanup != null) subscriptionState.cleanup = isCallable(cleanup.unsubscribe)
      ? function () { subscription.unsubscribe(); }
      : aCallable(cleanup);
  } catch (error) {
    subscriptionObserver.error(error);
    return;
  } if (subscriptionState.isClosed()) subscriptionState.clean();
};

Subscription.prototype = redefineAll({}, {
  unsubscribe: function unsubscribe() {
    var subscriptionState = getSubscriptionInternalState(this);
    if (!subscriptionState.isClosed()) {
      subscriptionState.close();
      subscriptionState.clean();
    }
  }
});

if (DESCRIPTORS) defineProperty(Subscription.prototype, 'closed', {
  configurable: true,
  get: function () {
    return getSubscriptionInternalState(this).isClosed();
  }
});

var SubscriptionObserver = function (subscriptionState) {
  setInternalState(this, {
    type: SUBSCRIPTION_OBSERVER,
    subscriptionState: subscriptionState
  });
  if (!DESCRIPTORS) this.closed = false;
};

SubscriptionObserver.prototype = redefineAll({}, {
  next: function next(value) {
    var subscriptionState = getSubscriptionObserverInternalState(this).subscriptionState;
    if (!subscriptionState.isClosed()) {
      var observer = subscriptionState.observer;
      try {
        var nextMethod = getMethod(observer, 'next');
        if (nextMethod) call(nextMethod, observer, value);
      } catch (error) {
        hostReportErrors(error);
      }
    }
  },
  error: function error(value) {
    var subscriptionState = getSubscriptionObserverInternalState(this).subscriptionState;
    if (!subscriptionState.isClosed()) {
      var observer = subscriptionState.observer;
      subscriptionState.close();
      try {
        var errorMethod = getMethod(observer, 'error');
        if (errorMethod) call(errorMethod, observer, value);
        else hostReportErrors(value);
      } catch (err) {
        hostReportErrors(err);
      } subscriptionState.clean();
    }
  },
  complete: function complete() {
    var subscriptionState = getSubscriptionObserverInternalState(this).subscriptionState;
    if (!subscriptionState.isClosed()) {
      var observer = subscriptionState.observer;
      subscriptionState.close();
      try {
        var completeMethod = getMethod(observer, 'complete');
        if (completeMethod) call(completeMethod, observer);
      } catch (error) {
        hostReportErrors(error);
      } subscriptionState.clean();
    }
  }
});

if (DESCRIPTORS) defineProperty(SubscriptionObserver.prototype, 'closed', {
  configurable: true,
  get: function () {
    return getSubscriptionObserverInternalState(this).subscriptionState.isClosed();
  }
});

var $Observable = function Observable(subscriber) {
  anInstance(this, ObservablePrototype);
  setInternalState(this, {
    type: OBSERVABLE,
    subscriber: aCallable(subscriber)
  });
};

var ObservablePrototype = $Observable.prototype;

redefineAll(ObservablePrototype, {
  subscribe: function subscribe(observer) {
    var length = arguments.length;
    return new Subscription(isCallable(observer) ? {
      next: observer,
      error: length > 1 ? arguments[1] : undefined,
      complete: length > 2 ? arguments[2] : undefined
    } : isObject(observer) ? observer : {}, getObservableInternalState(this).subscriber);
  }
});

redefineAll($Observable, {
  from: function from(x) {
    var C = isConstructor(this) ? this : $Observable;
    var observableMethod = getMethod(anObject(x), $$OBSERVABLE);
    if (observableMethod) {
      var observable = anObject(call(observableMethod, x));
      return observable.constructor === C ? observable : new C(function (observer) {
        return observable.subscribe(observer);
      });
    }
    var iterator = getIterator(x);
    return new C(function (observer) {
      iterate(iterator, function (it, stop) {
        observer.next(it);
        if (observer.closed) return stop();
      }, { IS_ITERATOR: true, INTERRUPTED: true });
      observer.complete();
    });
  },
  of: function of() {
    var C = isConstructor(this) ? this : $Observable;
    var length = arguments.length;
    var items = Array(length);
    var index = 0;
    while (index < length) items[index] = arguments[index++];
    return new C(function (observer) {
      for (var i = 0; i < length; i++) {
        observer.next(items[i]);
        if (observer.closed) return;
      } observer.complete();
    });
  }
});

redefine(ObservablePrototype, $$OBSERVABLE, function () { return this; });

$({ global: true, forced: FORCED }, {
  Observable: $Observable
});

setSpecies(OBSERVABLE);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.promise.all-settled.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.promise.all-settled.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: Remove from `core-js@4`
__webpack_require__(/*! ../modules/es.promise.all-settled.js */ "./node_modules/core-js/modules/es.promise.all-settled.js");


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.promise.any.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.promise.any.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: Remove from `core-js@4`
__webpack_require__(/*! ../modules/es.promise.any */ "./node_modules/core-js/modules/es.promise.any.js");


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.promise.try.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.promise.try.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var newPromiseCapabilityModule = __webpack_require__(/*! ../internals/new-promise-capability */ "./node_modules/core-js/internals/new-promise-capability.js");
var perform = __webpack_require__(/*! ../internals/perform */ "./node_modules/core-js/internals/perform.js");

// `Promise.try` method
// https://github.com/tc39/proposal-promise-try
$({ target: 'Promise', stat: true, forced: true }, {
  'try': function (callbackfn) {
    var promiseCapability = newPromiseCapabilityModule.f(this);
    var result = perform(callbackfn);
    (result.error ? promiseCapability.reject : promiseCapability.resolve)(result.value);
    return promiseCapability.promise;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.reflect.define-metadata.js":
/*!************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.reflect.define-metadata.js ***!
  \************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ReflectMetadataModule = __webpack_require__(/*! ../internals/reflect-metadata */ "./node_modules/core-js/internals/reflect-metadata.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var toMetadataKey = ReflectMetadataModule.toKey;
var ordinaryDefineOwnMetadata = ReflectMetadataModule.set;

// `Reflect.defineMetadata` method
// https://github.com/rbuckton/reflect-metadata
$({ target: 'Reflect', stat: true }, {
  defineMetadata: function defineMetadata(metadataKey, metadataValue, target /* , targetKey */) {
    var targetKey = arguments.length < 4 ? undefined : toMetadataKey(arguments[3]);
    ordinaryDefineOwnMetadata(metadataKey, metadataValue, anObject(target), targetKey);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.reflect.delete-metadata.js":
/*!************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.reflect.delete-metadata.js ***!
  \************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ReflectMetadataModule = __webpack_require__(/*! ../internals/reflect-metadata */ "./node_modules/core-js/internals/reflect-metadata.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var toMetadataKey = ReflectMetadataModule.toKey;
var getOrCreateMetadataMap = ReflectMetadataModule.getMap;
var store = ReflectMetadataModule.store;

// `Reflect.deleteMetadata` method
// https://github.com/rbuckton/reflect-metadata
$({ target: 'Reflect', stat: true }, {
  deleteMetadata: function deleteMetadata(metadataKey, target /* , targetKey */) {
    var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);
    var metadataMap = getOrCreateMetadataMap(anObject(target), targetKey, false);
    if (metadataMap === undefined || !metadataMap['delete'](metadataKey)) return false;
    if (metadataMap.size) return true;
    var targetMetadata = store.get(target);
    targetMetadata['delete'](targetKey);
    return !!targetMetadata.size || store['delete'](target);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.reflect.get-metadata-keys.js":
/*!**************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.reflect.get-metadata-keys.js ***!
  \**************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var ReflectMetadataModule = __webpack_require__(/*! ../internals/reflect-metadata */ "./node_modules/core-js/internals/reflect-metadata.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");
var $arrayUniqueBy = __webpack_require__(/*! ../internals/array-unique-by */ "./node_modules/core-js/internals/array-unique-by.js");

var arrayUniqueBy = uncurryThis($arrayUniqueBy);
var concat = uncurryThis([].concat);
var ordinaryOwnMetadataKeys = ReflectMetadataModule.keys;
var toMetadataKey = ReflectMetadataModule.toKey;

var ordinaryMetadataKeys = function (O, P) {
  var oKeys = ordinaryOwnMetadataKeys(O, P);
  var parent = getPrototypeOf(O);
  if (parent === null) return oKeys;
  var pKeys = ordinaryMetadataKeys(parent, P);
  return pKeys.length ? oKeys.length ? arrayUniqueBy(concat(oKeys, pKeys)) : pKeys : oKeys;
};

// `Reflect.getMetadataKeys` method
// https://github.com/rbuckton/reflect-metadata
$({ target: 'Reflect', stat: true }, {
  getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {
    var targetKey = arguments.length < 2 ? undefined : toMetadataKey(arguments[1]);
    return ordinaryMetadataKeys(anObject(target), targetKey);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.reflect.get-metadata.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.reflect.get-metadata.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ReflectMetadataModule = __webpack_require__(/*! ../internals/reflect-metadata */ "./node_modules/core-js/internals/reflect-metadata.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");

var ordinaryHasOwnMetadata = ReflectMetadataModule.has;
var ordinaryGetOwnMetadata = ReflectMetadataModule.get;
var toMetadataKey = ReflectMetadataModule.toKey;

var ordinaryGetMetadata = function (MetadataKey, O, P) {
  var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);
  if (hasOwn) return ordinaryGetOwnMetadata(MetadataKey, O, P);
  var parent = getPrototypeOf(O);
  return parent !== null ? ordinaryGetMetadata(MetadataKey, parent, P) : undefined;
};

// `Reflect.getMetadata` method
// https://github.com/rbuckton/reflect-metadata
$({ target: 'Reflect', stat: true }, {
  getMetadata: function getMetadata(metadataKey, target /* , targetKey */) {
    var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);
    return ordinaryGetMetadata(metadataKey, anObject(target), targetKey);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.reflect.get-own-metadata-keys.js":
/*!******************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.reflect.get-own-metadata-keys.js ***!
  \******************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ReflectMetadataModule = __webpack_require__(/*! ../internals/reflect-metadata */ "./node_modules/core-js/internals/reflect-metadata.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var ordinaryOwnMetadataKeys = ReflectMetadataModule.keys;
var toMetadataKey = ReflectMetadataModule.toKey;

// `Reflect.getOwnMetadataKeys` method
// https://github.com/rbuckton/reflect-metadata
$({ target: 'Reflect', stat: true }, {
  getOwnMetadataKeys: function getOwnMetadataKeys(target /* , targetKey */) {
    var targetKey = arguments.length < 2 ? undefined : toMetadataKey(arguments[1]);
    return ordinaryOwnMetadataKeys(anObject(target), targetKey);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.reflect.get-own-metadata.js":
/*!*************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.reflect.get-own-metadata.js ***!
  \*************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ReflectMetadataModule = __webpack_require__(/*! ../internals/reflect-metadata */ "./node_modules/core-js/internals/reflect-metadata.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var ordinaryGetOwnMetadata = ReflectMetadataModule.get;
var toMetadataKey = ReflectMetadataModule.toKey;

// `Reflect.getOwnMetadata` method
// https://github.com/rbuckton/reflect-metadata
$({ target: 'Reflect', stat: true }, {
  getOwnMetadata: function getOwnMetadata(metadataKey, target /* , targetKey */) {
    var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);
    return ordinaryGetOwnMetadata(metadataKey, anObject(target), targetKey);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.reflect.has-metadata.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.reflect.has-metadata.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ReflectMetadataModule = __webpack_require__(/*! ../internals/reflect-metadata */ "./node_modules/core-js/internals/reflect-metadata.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getPrototypeOf = __webpack_require__(/*! ../internals/object-get-prototype-of */ "./node_modules/core-js/internals/object-get-prototype-of.js");

var ordinaryHasOwnMetadata = ReflectMetadataModule.has;
var toMetadataKey = ReflectMetadataModule.toKey;

var ordinaryHasMetadata = function (MetadataKey, O, P) {
  var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);
  if (hasOwn) return true;
  var parent = getPrototypeOf(O);
  return parent !== null ? ordinaryHasMetadata(MetadataKey, parent, P) : false;
};

// `Reflect.hasMetadata` method
// https://github.com/rbuckton/reflect-metadata
$({ target: 'Reflect', stat: true }, {
  hasMetadata: function hasMetadata(metadataKey, target /* , targetKey */) {
    var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);
    return ordinaryHasMetadata(metadataKey, anObject(target), targetKey);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.reflect.has-own-metadata.js":
/*!*************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.reflect.has-own-metadata.js ***!
  \*************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ReflectMetadataModule = __webpack_require__(/*! ../internals/reflect-metadata */ "./node_modules/core-js/internals/reflect-metadata.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var ordinaryHasOwnMetadata = ReflectMetadataModule.has;
var toMetadataKey = ReflectMetadataModule.toKey;

// `Reflect.hasOwnMetadata` method
// https://github.com/rbuckton/reflect-metadata
$({ target: 'Reflect', stat: true }, {
  hasOwnMetadata: function hasOwnMetadata(metadataKey, target /* , targetKey */) {
    var targetKey = arguments.length < 3 ? undefined : toMetadataKey(arguments[2]);
    return ordinaryHasOwnMetadata(metadataKey, anObject(target), targetKey);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.reflect.metadata.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.reflect.metadata.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var ReflectMetadataModule = __webpack_require__(/*! ../internals/reflect-metadata */ "./node_modules/core-js/internals/reflect-metadata.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");

var toMetadataKey = ReflectMetadataModule.toKey;
var ordinaryDefineOwnMetadata = ReflectMetadataModule.set;

// `Reflect.metadata` method
// https://github.com/rbuckton/reflect-metadata
$({ target: 'Reflect', stat: true }, {
  metadata: function metadata(metadataKey, metadataValue) {
    return function decorator(target, key) {
      ordinaryDefineOwnMetadata(metadataKey, metadataValue, anObject(target), toMetadataKey(key));
    };
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.add-all.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.add-all.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var addAll = __webpack_require__(/*! ../internals/collection-add-all */ "./node_modules/core-js/internals/collection-add-all.js");

// `Set.prototype.addAll` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  addAll: addAll
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.delete-all.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.delete-all.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var deleteAll = __webpack_require__(/*! ../internals/collection-delete-all */ "./node_modules/core-js/internals/collection-delete-all.js");

// `Set.prototype.deleteAll` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  deleteAll: deleteAll
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.difference.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.difference.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.difference` method
// https://github.com/tc39/proposal-set-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  difference: function difference(iterable) {
    var set = anObject(this);
    var newSet = new (speciesConstructor(set, getBuiltIn('Set')))(set);
    var remover = aCallable(newSet['delete']);
    iterate(iterable, function (value) {
      call(remover, newSet, value);
    });
    return newSet;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.every.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.every.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var getSetIterator = __webpack_require__(/*! ../internals/get-set-iterator */ "./node_modules/core-js/internals/get-set-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.every` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  every: function every(callbackfn /* , thisArg */) {
    var set = anObject(this);
    var iterator = getSetIterator(set);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    return !iterate(iterator, function (value, stop) {
      if (!boundFunction(value, value, set)) return stop();
    }, { IS_ITERATOR: true, INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.filter.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.filter.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var getSetIterator = __webpack_require__(/*! ../internals/get-set-iterator */ "./node_modules/core-js/internals/get-set-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.filter` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  filter: function filter(callbackfn /* , thisArg */) {
    var set = anObject(this);
    var iterator = getSetIterator(set);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    var newSet = new (speciesConstructor(set, getBuiltIn('Set')))();
    var adder = aCallable(newSet.add);
    iterate(iterator, function (value) {
      if (boundFunction(value, value, set)) call(adder, newSet, value);
    }, { IS_ITERATOR: true });
    return newSet;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.find.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.find.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var getSetIterator = __webpack_require__(/*! ../internals/get-set-iterator */ "./node_modules/core-js/internals/get-set-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.find` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  find: function find(callbackfn /* , thisArg */) {
    var set = anObject(this);
    var iterator = getSetIterator(set);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    return iterate(iterator, function (value, stop) {
      if (boundFunction(value, value, set)) return stop(value);
    }, { IS_ITERATOR: true, INTERRUPTED: true }).result;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.from.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.from.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var from = __webpack_require__(/*! ../internals/collection-from */ "./node_modules/core-js/internals/collection-from.js");

// `Set.from` method
// https://tc39.github.io/proposal-setmap-offrom/#sec-set.from
$({ target: 'Set', stat: true, forced: true }, {
  from: from
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.intersection.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.intersection.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.intersection` method
// https://github.com/tc39/proposal-set-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  intersection: function intersection(iterable) {
    var set = anObject(this);
    var newSet = new (speciesConstructor(set, getBuiltIn('Set')))();
    var hasCheck = aCallable(set.has);
    var adder = aCallable(newSet.add);
    iterate(iterable, function (value) {
      if (call(hasCheck, set, value)) call(adder, newSet, value);
    });
    return newSet;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.is-disjoint-from.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.is-disjoint-from.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.isDisjointFrom` method
// https://tc39.github.io/proposal-set-methods/#Set.prototype.isDisjointFrom
$({ target: 'Set', proto: true, real: true, forced: true }, {
  isDisjointFrom: function isDisjointFrom(iterable) {
    var set = anObject(this);
    var hasCheck = aCallable(set.has);
    return !iterate(iterable, function (value, stop) {
      if (call(hasCheck, set, value) === true) return stop();
    }, { INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.is-subset-of.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.is-subset-of.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.isSubsetOf` method
// https://tc39.github.io/proposal-set-methods/#Set.prototype.isSubsetOf
$({ target: 'Set', proto: true, real: true, forced: true }, {
  isSubsetOf: function isSubsetOf(iterable) {
    var iterator = getIterator(this);
    var otherSet = anObject(iterable);
    var hasCheck = otherSet.has;
    if (!isCallable(hasCheck)) {
      otherSet = new (getBuiltIn('Set'))(iterable);
      hasCheck = aCallable(otherSet.has);
    }
    return !iterate(iterator, function (value, stop) {
      if (call(hasCheck, otherSet, value) === false) return stop();
    }, { IS_ITERATOR: true, INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.is-superset-of.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.is-superset-of.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.isSupersetOf` method
// https://tc39.github.io/proposal-set-methods/#Set.prototype.isSupersetOf
$({ target: 'Set', proto: true, real: true, forced: true }, {
  isSupersetOf: function isSupersetOf(iterable) {
    var set = anObject(this);
    var hasCheck = aCallable(set.has);
    return !iterate(iterable, function (value, stop) {
      if (call(hasCheck, set, value) === false) return stop();
    }, { INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.join.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.join.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var getSetIterator = __webpack_require__(/*! ../internals/get-set-iterator */ "./node_modules/core-js/internals/get-set-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

var arrayJoin = uncurryThis([].join);
var push = [].push;

// `Set.prototype.join` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  join: function join(separator) {
    var set = anObject(this);
    var iterator = getSetIterator(set);
    var sep = separator === undefined ? ',' : toString(separator);
    var result = [];
    iterate(iterator, push, { that: result, IS_ITERATOR: true });
    return arrayJoin(result, sep);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.map.js":
/*!********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.map.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var getSetIterator = __webpack_require__(/*! ../internals/get-set-iterator */ "./node_modules/core-js/internals/get-set-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.map` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  map: function map(callbackfn /* , thisArg */) {
    var set = anObject(this);
    var iterator = getSetIterator(set);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    var newSet = new (speciesConstructor(set, getBuiltIn('Set')))();
    var adder = aCallable(newSet.add);
    iterate(iterator, function (value) {
      call(adder, newSet, boundFunction(value, value, set));
    }, { IS_ITERATOR: true });
    return newSet;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.of.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.of.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var of = __webpack_require__(/*! ../internals/collection-of */ "./node_modules/core-js/internals/collection-of.js");

// `Set.of` method
// https://tc39.github.io/proposal-setmap-offrom/#sec-set.of
$({ target: 'Set', stat: true, forced: true }, {
  of: of
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.reduce.js":
/*!***********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.reduce.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var getSetIterator = __webpack_require__(/*! ../internals/get-set-iterator */ "./node_modules/core-js/internals/get-set-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

var TypeError = global.TypeError;

// `Set.prototype.reduce` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  reduce: function reduce(callbackfn /* , initialValue */) {
    var set = anObject(this);
    var iterator = getSetIterator(set);
    var noInitial = arguments.length < 2;
    var accumulator = noInitial ? undefined : arguments[1];
    aCallable(callbackfn);
    iterate(iterator, function (value) {
      if (noInitial) {
        noInitial = false;
        accumulator = value;
      } else {
        accumulator = callbackfn(accumulator, value, value, set);
      }
    }, { IS_ITERATOR: true });
    if (noInitial) throw TypeError('Reduce of empty set with no initial value');
    return accumulator;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.some.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.some.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var getSetIterator = __webpack_require__(/*! ../internals/get-set-iterator */ "./node_modules/core-js/internals/get-set-iterator.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.some` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  some: function some(callbackfn /* , thisArg */) {
    var set = anObject(this);
    var iterator = getSetIterator(set);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    return iterate(iterator, function (value, stop) {
      if (boundFunction(value, value, set)) return stop();
    }, { IS_ITERATOR: true, INTERRUPTED: true }).stopped;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.symmetric-difference.js":
/*!*************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.symmetric-difference.js ***!
  \*************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.symmetricDifference` method
// https://github.com/tc39/proposal-set-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  symmetricDifference: function symmetricDifference(iterable) {
    var set = anObject(this);
    var newSet = new (speciesConstructor(set, getBuiltIn('Set')))(set);
    var remover = aCallable(newSet['delete']);
    var adder = aCallable(newSet.add);
    iterate(iterable, function (value) {
      call(remover, newSet, value) || call(adder, newSet, value);
    });
    return newSet;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.set.union.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.set.union.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var speciesConstructor = __webpack_require__(/*! ../internals/species-constructor */ "./node_modules/core-js/internals/species-constructor.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");

// `Set.prototype.union` method
// https://github.com/tc39/proposal-set-methods
$({ target: 'Set', proto: true, real: true, forced: true }, {
  union: function union(iterable) {
    var set = anObject(this);
    var newSet = new (speciesConstructor(set, getBuiltIn('Set')))(set);
    iterate(iterable, aCallable(newSet.add), { that: newSet });
    return newSet;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.string.at.js":
/*!**********************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.string.at.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var charAt = (__webpack_require__(/*! ../internals/string-multibyte */ "./node_modules/core-js/internals/string-multibyte.js").charAt);
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var toIntegerOrInfinity = __webpack_require__(/*! ../internals/to-integer-or-infinity */ "./node_modules/core-js/internals/to-integer-or-infinity.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");

// `String.prototype.at` method
// https://github.com/mathiasbynens/String.prototype.at
$({ target: 'String', proto: true, forced: true }, {
  at: function at(index) {
    var S = toString(requireObjectCoercible(this));
    var len = S.length;
    var relativeIndex = toIntegerOrInfinity(index);
    var k = relativeIndex >= 0 ? relativeIndex : len + relativeIndex;
    return (k < 0 || k >= len) ? undefined : charAt(S, k);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.string.code-points.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.string.code-points.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var createIteratorConstructor = __webpack_require__(/*! ../internals/create-iterator-constructor */ "./node_modules/core-js/internals/create-iterator-constructor.js");
var requireObjectCoercible = __webpack_require__(/*! ../internals/require-object-coercible */ "./node_modules/core-js/internals/require-object-coercible.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var StringMultibyteModule = __webpack_require__(/*! ../internals/string-multibyte */ "./node_modules/core-js/internals/string-multibyte.js");

var codeAt = StringMultibyteModule.codeAt;
var charAt = StringMultibyteModule.charAt;
var STRING_ITERATOR = 'String Iterator';
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);

// TODO: unify with String#@@iterator
var $StringIterator = createIteratorConstructor(function StringIterator(string) {
  setInternalState(this, {
    type: STRING_ITERATOR,
    string: string,
    index: 0
  });
}, 'String', function next() {
  var state = getInternalState(this);
  var string = state.string;
  var index = state.index;
  var point;
  if (index >= string.length) return { value: undefined, done: true };
  point = charAt(string, index);
  state.index += point.length;
  return { value: { codePoint: codeAt(point, 0), position: index }, done: false };
});

// `String.prototype.codePoints` method
// https://github.com/tc39/proposal-string-prototype-codepoints
$({ target: 'String', proto: true, forced: true }, {
  codePoints: function codePoints() {
    return new $StringIterator(toString(requireObjectCoercible(this)));
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.string.cooked.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.string.cooked.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var toIndexedObject = __webpack_require__(/*! ../internals/to-indexed-object */ "./node_modules/core-js/internals/to-indexed-object.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");

var TypeError = global.TypeError;
var ArrayPrototype = Array.prototype;
var push = uncurryThis(ArrayPrototype.push);
var join = uncurryThis(ArrayPrototype.join);

// `String.cooked` method
// https://github.com/tc39/proposal-string-cooked
$({ target: 'String', stat: true, forced: true }, {
  cooked: function cooked(template /* , ...substitutions */) {
    var cookedTemplate = toIndexedObject(template);
    var literalSegments = lengthOfArrayLike(cookedTemplate);
    var argumentsLength = arguments.length;
    var elements = [];
    var i = 0;
    while (literalSegments > i) {
      var nextVal = cookedTemplate[i++];
      if (nextVal === undefined) throw TypeError('Incorrect template');
      push(elements, toString(nextVal));
      if (i === literalSegments) return join(elements, '');
      if (i < argumentsLength) push(elements, toString(arguments[i]));
    }
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.string.match-all.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.string.match-all.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: Remove from `core-js@4`
__webpack_require__(/*! ../modules/es.string.match-all */ "./node_modules/core-js/modules/es.string.match-all.js");


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.string.replace-all.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.string.replace-all.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: Remove from `core-js@4`
__webpack_require__(/*! ../modules/es.string.replace-all */ "./node_modules/core-js/modules/es.string.replace-all.js");


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.symbol.async-dispose.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.symbol.async-dispose.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.asyncDispose` well-known symbol
// https://github.com/tc39/proposal-using-statement
defineWellKnownSymbol('asyncDispose');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.symbol.dispose.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.symbol.dispose.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.dispose` well-known symbol
// https://github.com/tc39/proposal-using-statement
defineWellKnownSymbol('dispose');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.symbol.matcher.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.symbol.matcher.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.matcher` well-known symbol
// https://github.com/tc39/proposal-pattern-matching
defineWellKnownSymbol('matcher');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.symbol.metadata.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.symbol.metadata.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.metadata` well-known symbol
// https://github.com/tc39/proposal-decorators
defineWellKnownSymbol('metadata');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.symbol.observable.js":
/*!******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.symbol.observable.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.observable` well-known symbol
// https://github.com/tc39/proposal-observable
defineWellKnownSymbol('observable');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.symbol.pattern-match.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.symbol.pattern-match.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: remove from `core-js@4`
var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

// `Symbol.patternMatch` well-known symbol
// https://github.com/tc39/proposal-pattern-matching
defineWellKnownSymbol('patternMatch');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.symbol.replace-all.js":
/*!*******************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.symbol.replace-all.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: remove from `core-js@4`
var defineWellKnownSymbol = __webpack_require__(/*! ../internals/define-well-known-symbol */ "./node_modules/core-js/internals/define-well-known-symbol.js");

defineWellKnownSymbol('replaceAll');


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.at.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.at.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

// TODO: Remove from `core-js@4`
__webpack_require__(/*! ../modules/es.typed-array.at */ "./node_modules/core-js/modules/es.typed-array.at.js");


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.filter-out.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.filter-out.js ***!
  \***********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: Remove from `core-js@4`
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $filterReject = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").filterReject);
var fromSpeciesAndList = __webpack_require__(/*! ../internals/typed-array-from-species-and-list */ "./node_modules/core-js/internals/typed-array-from-species-and-list.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.filterOut` method
// https://github.com/tc39/proposal-array-filtering
exportTypedArrayMethod('filterOut', function filterOut(callbackfn /* , thisArg */) {
  var list = $filterReject(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  return fromSpeciesAndList(this, list);
}, true);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.filter-reject.js":
/*!**************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.filter-reject.js ***!
  \**************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $filterReject = (__webpack_require__(/*! ../internals/array-iteration */ "./node_modules/core-js/internals/array-iteration.js").filterReject);
var fromSpeciesAndList = __webpack_require__(/*! ../internals/typed-array-from-species-and-list */ "./node_modules/core-js/internals/typed-array-from-species-and-list.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.filterReject` method
// https://github.com/tc39/proposal-array-filtering
exportTypedArrayMethod('filterReject', function filterReject(callbackfn /* , thisArg */) {
  var list = $filterReject(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  return fromSpeciesAndList(this, list);
}, true);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.find-last-index.js":
/*!****************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.find-last-index.js ***!
  \****************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $findLastIndex = (__webpack_require__(/*! ../internals/array-iteration-from-last */ "./node_modules/core-js/internals/array-iteration-from-last.js").findLastIndex);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.findLastIndex` method
// https://github.com/tc39/proposal-array-find-from-last
exportTypedArrayMethod('findLastIndex', function findLastIndex(predicate /* , thisArg */) {
  return $findLastIndex(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.find-last.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.find-last.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $findLast = (__webpack_require__(/*! ../internals/array-iteration-from-last */ "./node_modules/core-js/internals/array-iteration-from-last.js").findLast);

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.findLast` method
// https://github.com/tc39/proposal-array-find-from-last
exportTypedArrayMethod('findLast', function findLast(predicate /* , thisArg */) {
  return $findLast(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.from-async.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.from-async.js ***!
  \***********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: Remove from `core-js@4`
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var aConstructor = __webpack_require__(/*! ../internals/a-constructor */ "./node_modules/core-js/internals/a-constructor.js");
var arrayFromAsync = __webpack_require__(/*! ../internals/array-from-async */ "./node_modules/core-js/internals/array-from-async.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var arrayFromConstructorAndList = __webpack_require__(/*! ../internals/array-from-constructor-and-list */ "./node_modules/core-js/internals/array-from-constructor-and-list.js");

var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
var exportTypedArrayStaticMethod = ArrayBufferViewCore.exportTypedArrayStaticMethod;

// `%TypedArray%.fromAsync` method
// https://github.com/tc39/proposal-array-from-async
exportTypedArrayStaticMethod('fromAsync', function fromAsync(asyncItems /* , mapfn = undefined, thisArg = undefined */) {
  var C = this;
  var argumentsLength = arguments.length;
  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
  var thisArg = argumentsLength > 2 ? arguments[2] : undefined;
  return new (getBuiltIn('Promise'))(function (resolve) {
    aConstructor(C);
    resolve(arrayFromAsync(asyncItems, mapfn, thisArg));
  }).then(function (list) {
    return arrayFromConstructorAndList(aTypedArrayConstructor(C), list);
  });
}, true);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.group-by.js":
/*!*********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.group-by.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: Remove from `core-js@4`
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $groupBy = __webpack_require__(/*! ../internals/array-group-by */ "./node_modules/core-js/internals/array-group-by.js");
var typedArraySpeciesConstructor = __webpack_require__(/*! ../internals/typed-array-species-constructor */ "./node_modules/core-js/internals/typed-array-species-constructor.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.groupBy` method
// https://github.com/tc39/proposal-array-grouping
exportTypedArrayMethod('groupBy', function groupBy(callbackfn /* , thisArg */) {
  var thisArg = arguments.length > 1 ? arguments[1] : undefined;
  return $groupBy(aTypedArray(this), callbackfn, thisArg, typedArraySpeciesConstructor);
}, true);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.to-reversed.js":
/*!************************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.to-reversed.js ***!
  \************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var arrayToReversed = __webpack_require__(/*! ../internals/array-to-reversed */ "./node_modules/core-js/internals/array-to-reversed.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var TYPED_ARRAY_CONSTRUCTOR = ArrayBufferViewCore.TYPED_ARRAY_CONSTRUCTOR;

// `%TypedArray%.prototype.toReversed` method
// https://tc39.es/proposal-change-array-by-copy/#sec-%typedarray%.prototype.toReversed
exportTypedArrayMethod('toReversed', function toReversed() {
  return arrayToReversed(aTypedArray(this), this[TYPED_ARRAY_CONSTRUCTOR]);
}, true);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.to-sorted.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.to-sorted.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var arrayFromConstructorAndList = __webpack_require__(/*! ../internals/array-from-constructor-and-list */ "./node_modules/core-js/internals/array-from-constructor-and-list.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var TYPED_ARRAY_CONSTRUCTOR = ArrayBufferViewCore.TYPED_ARRAY_CONSTRUCTOR;
var sort = uncurryThis(ArrayBufferViewCore.TypedArrayPrototype.sort);

// `%TypedArray%.prototype.toSorted` method
// https://tc39.es/proposal-change-array-by-copy/#sec-%typedarray%.prototype.toSorted
exportTypedArrayMethod('toSorted', function toSorted(compareFn) {
  if (compareFn !== undefined) aCallable(compareFn);
  var O = aTypedArray(this);
  var A = arrayFromConstructorAndList(O[TYPED_ARRAY_CONSTRUCTOR], O);
  return sort(A, compareFn);
}, true);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.to-spliced.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.to-spliced.js ***!
  \***********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");
var arrayToSpliced = __webpack_require__(/*! ../internals/array-to-spliced */ "./node_modules/core-js/internals/array-to-spliced.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var TYPED_ARRAY_CONSTRUCTOR = ArrayBufferViewCore.TYPED_ARRAY_CONSTRUCTOR;

// `%TypedArray%.prototype.toSpliced` method
// https://tc39.es/proposal-change-array-by-copy/#sec-%typedarray%.prototype.toSpliced
// eslint-disable-next-line no-unused-vars -- required for .length
exportTypedArrayMethod('toSpliced', function toSpliced(start, deleteCount /* , ...items */) {
  return arrayToSpliced(aTypedArray(this), this[TYPED_ARRAY_CONSTRUCTOR], arraySlice(arguments));
}, true);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.unique-by.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.unique-by.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");
var $arrayUniqueBy = __webpack_require__(/*! ../internals/array-unique-by */ "./node_modules/core-js/internals/array-unique-by.js");
var fromSpeciesAndList = __webpack_require__(/*! ../internals/typed-array-from-species-and-list */ "./node_modules/core-js/internals/typed-array-from-species-and-list.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var arrayUniqueBy = uncurryThis($arrayUniqueBy);

// `%TypedArray%.prototype.uniqueBy` method
// https://github.com/tc39/proposal-array-unique
exportTypedArrayMethod('uniqueBy', function uniqueBy(resolver) {
  return fromSpeciesAndList(this, arrayUniqueBy(aTypedArray(this), resolver));
}, true);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.typed-array.with.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.typed-array.with.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var arrayWith = __webpack_require__(/*! ../internals/array-with */ "./node_modules/core-js/internals/array-with.js");
var ArrayBufferViewCore = __webpack_require__(/*! ../internals/array-buffer-view-core */ "./node_modules/core-js/internals/array-buffer-view-core.js");

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
var TYPED_ARRAY_CONSTRUCTOR = ArrayBufferViewCore.TYPED_ARRAY_CONSTRUCTOR;

// `%TypedArray%.prototype.with` method
// https://tc39.es/proposal-change-array-by-copy/#sec-%typedarray%.prototype.with
exportTypedArrayMethod('with', { 'with': function (index, value) {
  return arrayWith(aTypedArray(this), this[TYPED_ARRAY_CONSTRUCTOR], index, value);
} }['with'], true);


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.weak-map.delete-all.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.weak-map.delete-all.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var deleteAll = __webpack_require__(/*! ../internals/collection-delete-all */ "./node_modules/core-js/internals/collection-delete-all.js");

// `WeakMap.prototype.deleteAll` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'WeakMap', proto: true, real: true, forced: true }, {
  deleteAll: deleteAll
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.weak-map.emplace.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.weak-map.emplace.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var emplace = __webpack_require__(/*! ../internals/map-emplace */ "./node_modules/core-js/internals/map-emplace.js");

// `WeakMap.prototype.emplace` method
// https://github.com/tc39/proposal-upsert
$({ target: 'WeakMap', proto: true, real: true, forced: true }, {
  emplace: emplace
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.weak-map.from.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.weak-map.from.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var from = __webpack_require__(/*! ../internals/collection-from */ "./node_modules/core-js/internals/collection-from.js");

// `WeakMap.from` method
// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.from
$({ target: 'WeakMap', stat: true, forced: true }, {
  from: from
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.weak-map.of.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.weak-map.of.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var of = __webpack_require__(/*! ../internals/collection-of */ "./node_modules/core-js/internals/collection-of.js");

// `WeakMap.of` method
// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.of
$({ target: 'WeakMap', stat: true, forced: true }, {
  of: of
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.weak-map.upsert.js":
/*!****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.weak-map.upsert.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: remove from `core-js@4`
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var upsert = __webpack_require__(/*! ../internals/map-upsert */ "./node_modules/core-js/internals/map-upsert.js");

// `WeakMap.prototype.upsert` method (replaced by `WeakMap.prototype.emplace`)
// https://github.com/tc39/proposal-upsert
$({ target: 'WeakMap', proto: true, real: true, forced: true }, {
  upsert: upsert
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.weak-set.add-all.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.weak-set.add-all.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var addAll = __webpack_require__(/*! ../internals/collection-add-all */ "./node_modules/core-js/internals/collection-add-all.js");

// `WeakSet.prototype.addAll` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'WeakSet', proto: true, real: true, forced: true }, {
  addAll: addAll
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.weak-set.delete-all.js":
/*!********************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.weak-set.delete-all.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var deleteAll = __webpack_require__(/*! ../internals/collection-delete-all */ "./node_modules/core-js/internals/collection-delete-all.js");

// `WeakSet.prototype.deleteAll` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'WeakSet', proto: true, real: true, forced: true }, {
  deleteAll: deleteAll
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.weak-set.from.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.weak-set.from.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var from = __webpack_require__(/*! ../internals/collection-from */ "./node_modules/core-js/internals/collection-from.js");

// `WeakSet.from` method
// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.from
$({ target: 'WeakSet', stat: true, forced: true }, {
  from: from
});


/***/ }),

/***/ "./node_modules/core-js/modules/esnext.weak-set.of.js":
/*!************************************************************!*\
  !*** ./node_modules/core-js/modules/esnext.weak-set.of.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var of = __webpack_require__(/*! ../internals/collection-of */ "./node_modules/core-js/internals/collection-of.js");

// `WeakSet.of` method
// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.of
$({ target: 'WeakSet', stat: true, forced: true }, {
  of: of
});


/***/ }),

/***/ "./node_modules/core-js/modules/web.atob.js":
/*!**************************************************!*\
  !*** ./node_modules/core-js/modules/web.atob.js ***!
  \**************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var validateArgumentsLength = __webpack_require__(/*! ../internals/validate-arguments-length */ "./node_modules/core-js/internals/validate-arguments-length.js");
var ctoi = (__webpack_require__(/*! ../internals/base64-map */ "./node_modules/core-js/internals/base64-map.js").ctoi);

var disallowed = /[^\d+/a-z]/i;
var whitespaces = /[\t\n\f\r ]+/g;
var finalEq = /[=]+$/;

var $atob = getBuiltIn('atob');
var fromCharCode = String.fromCharCode;
var charAt = uncurryThis(''.charAt);
var replace = uncurryThis(''.replace);
var exec = uncurryThis(disallowed.exec);

var NO_SPACES_IGNORE = fails(function () {
  return atob(' ') !== '';
});

var NO_ARG_RECEIVING_CHECK = !NO_SPACES_IGNORE && !fails(function () {
  $atob();
});

// `atob` method
// https://html.spec.whatwg.org/multipage/webappapis.html#dom-atob
$({ global: true, enumerable: true, forced: NO_SPACES_IGNORE || NO_ARG_RECEIVING_CHECK }, {
  atob: function atob(data) {
    validateArgumentsLength(arguments.length, 1);
    if (NO_ARG_RECEIVING_CHECK) return $atob(data);
    var string = replace(toString(data), whitespaces, '');
    var output = '';
    var position = 0;
    var bc = 0;
    var chr, bs;
    if (string.length % 4 == 0) {
      string = replace(string, finalEq, '');
    }
    if (string.length % 4 == 1 || exec(disallowed, string)) {
      throw new (getBuiltIn('DOMException'))('The string is not correctly encoded', 'InvalidCharacterError');
    }
    while (chr = charAt(string, position++)) {
      if (hasOwn(ctoi, chr)) {
        bs = bc % 4 ? bs * 64 + ctoi[chr] : ctoi[chr];
        if (bc++ % 4) output += fromCharCode(255 & bs >> (-2 * bc & 6));
      }
    } return output;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/web.btoa.js":
/*!**************************************************!*\
  !*** ./node_modules/core-js/modules/web.btoa.js ***!
  \**************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var validateArgumentsLength = __webpack_require__(/*! ../internals/validate-arguments-length */ "./node_modules/core-js/internals/validate-arguments-length.js");
var itoc = (__webpack_require__(/*! ../internals/base64-map */ "./node_modules/core-js/internals/base64-map.js").itoc);

var $btoa = getBuiltIn('btoa');
var charAt = uncurryThis(''.charAt);
var charCodeAt = uncurryThis(''.charCodeAt);

var NO_ARG_RECEIVING_CHECK = !!$btoa && !fails(function () {
  $btoa();
});

// `btoa` method
// https://html.spec.whatwg.org/multipage/webappapis.html#dom-btoa
$({ global: true, enumerable: true, forced: NO_ARG_RECEIVING_CHECK }, {
  btoa: function btoa(data) {
    validateArgumentsLength(arguments.length, 1);
    if (NO_ARG_RECEIVING_CHECK) return $btoa(data);
    var string = toString(data);
    var output = '';
    var position = 0;
    var map = itoc;
    var block, charCode;
    while (charAt(string, position) || (map = '=', position % 1)) {
      charCode = charCodeAt(string, position += 3 / 4);
      if (charCode > 0xFF) {
        throw new (getBuiltIn('DOMException'))('The string contains characters outside of the Latin1 range', 'InvalidCharacterError');
      }
      block = block << 8 | charCode;
      output += charAt(map, 63 & block >> 8 - position % 1 * 8);
    } return output;
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/web.dom-collections.for-each.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/web.dom-collections.for-each.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var DOMIterables = __webpack_require__(/*! ../internals/dom-iterables */ "./node_modules/core-js/internals/dom-iterables.js");
var DOMTokenListPrototype = __webpack_require__(/*! ../internals/dom-token-list-prototype */ "./node_modules/core-js/internals/dom-token-list-prototype.js");
var forEach = __webpack_require__(/*! ../internals/array-for-each */ "./node_modules/core-js/internals/array-for-each.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");

var handlePrototype = function (CollectionPrototype) {
  // some Chrome versions have non-configurable methods on DOMTokenList
  if (CollectionPrototype && CollectionPrototype.forEach !== forEach) try {
    createNonEnumerableProperty(CollectionPrototype, 'forEach', forEach);
  } catch (error) {
    CollectionPrototype.forEach = forEach;
  }
};

for (var COLLECTION_NAME in DOMIterables) {
  if (DOMIterables[COLLECTION_NAME]) {
    handlePrototype(global[COLLECTION_NAME] && global[COLLECTION_NAME].prototype);
  }
}

handlePrototype(DOMTokenListPrototype);


/***/ }),

/***/ "./node_modules/core-js/modules/web.dom-collections.iterator.js":
/*!**********************************************************************!*\
  !*** ./node_modules/core-js/modules/web.dom-collections.iterator.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var DOMIterables = __webpack_require__(/*! ../internals/dom-iterables */ "./node_modules/core-js/internals/dom-iterables.js");
var DOMTokenListPrototype = __webpack_require__(/*! ../internals/dom-token-list-prototype */ "./node_modules/core-js/internals/dom-token-list-prototype.js");
var ArrayIteratorMethods = __webpack_require__(/*! ../modules/es.array.iterator */ "./node_modules/core-js/modules/es.array.iterator.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");

var ITERATOR = wellKnownSymbol('iterator');
var TO_STRING_TAG = wellKnownSymbol('toStringTag');
var ArrayValues = ArrayIteratorMethods.values;

var handlePrototype = function (CollectionPrototype, COLLECTION_NAME) {
  if (CollectionPrototype) {
    // some Chrome versions have non-configurable methods on DOMTokenList
    if (CollectionPrototype[ITERATOR] !== ArrayValues) try {
      createNonEnumerableProperty(CollectionPrototype, ITERATOR, ArrayValues);
    } catch (error) {
      CollectionPrototype[ITERATOR] = ArrayValues;
    }
    if (!CollectionPrototype[TO_STRING_TAG]) {
      createNonEnumerableProperty(CollectionPrototype, TO_STRING_TAG, COLLECTION_NAME);
    }
    if (DOMIterables[COLLECTION_NAME]) for (var METHOD_NAME in ArrayIteratorMethods) {
      // some Chrome versions have non-configurable methods on DOMTokenList
      if (CollectionPrototype[METHOD_NAME] !== ArrayIteratorMethods[METHOD_NAME]) try {
        createNonEnumerableProperty(CollectionPrototype, METHOD_NAME, ArrayIteratorMethods[METHOD_NAME]);
      } catch (error) {
        CollectionPrototype[METHOD_NAME] = ArrayIteratorMethods[METHOD_NAME];
      }
    }
  }
};

for (var COLLECTION_NAME in DOMIterables) {
  handlePrototype(global[COLLECTION_NAME] && global[COLLECTION_NAME].prototype, COLLECTION_NAME);
}

handlePrototype(DOMTokenListPrototype, 'DOMTokenList');


/***/ }),

/***/ "./node_modules/core-js/modules/web.dom-exception.constructor.js":
/*!***********************************************************************!*\
  !*** ./node_modules/core-js/modules/web.dom-exception.constructor.js ***!
  \***********************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var tryNodeRequire = __webpack_require__(/*! ../internals/try-node-require */ "./node_modules/core-js/internals/try-node-require.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var defineProperties = (__webpack_require__(/*! ../internals/object-define-properties */ "./node_modules/core-js/internals/object-define-properties.js").f);
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var errorToString = __webpack_require__(/*! ../internals/error-to-string */ "./node_modules/core-js/internals/error-to-string.js");
var normalizeStringArgument = __webpack_require__(/*! ../internals/normalize-string-argument */ "./node_modules/core-js/internals/normalize-string-argument.js");
var DOMExceptionConstants = __webpack_require__(/*! ../internals/dom-exception-constants */ "./node_modules/core-js/internals/dom-exception-constants.js");
var clearErrorStack = __webpack_require__(/*! ../internals/clear-error-stack */ "./node_modules/core-js/internals/clear-error-stack.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

var DOM_EXCEPTION = 'DOMException';
var DATA_CLONE_ERR = 'DATA_CLONE_ERR';
var Error = getBuiltIn('Error');
// NodeJS < 17.0 does not expose `DOMException` to global
var NativeDOMException = getBuiltIn(DOM_EXCEPTION) || (function () {
  try {
    // NodeJS < 15.0 does not expose `MessageChannel` to global
    var MessageChannel = getBuiltIn('MessageChannel') || tryNodeRequire('worker_threads').MessageChannel;
    // eslint-disable-next-line es/no-weak-map, unicorn/require-post-message-target-origin -- safe
    new MessageChannel().port1.postMessage(new WeakMap());
  } catch (error) {
    if (error.name == DATA_CLONE_ERR && error.code == 25) return error.constructor;
  }
})();
var NativeDOMExceptionPrototype = NativeDOMException && NativeDOMException.prototype;
var ErrorPrototype = Error.prototype;
var setInternalState = InternalStateModule.set;
var getInternalState = InternalStateModule.getterFor(DOM_EXCEPTION);
var HAS_STACK = 'stack' in Error(DOM_EXCEPTION);

var codeFor = function (name) {
  return hasOwn(DOMExceptionConstants, name) && DOMExceptionConstants[name].m ? DOMExceptionConstants[name].c : 0;
};

var $DOMException = function DOMException() {
  anInstance(this, DOMExceptionPrototype);
  var argumentsLength = arguments.length;
  var message = normalizeStringArgument(argumentsLength < 1 ? undefined : arguments[0]);
  var name = normalizeStringArgument(argumentsLength < 2 ? undefined : arguments[1], 'Error');
  var code = codeFor(name);
  setInternalState(this, {
    type: DOM_EXCEPTION,
    name: name,
    message: message,
    code: code
  });
  if (!DESCRIPTORS) {
    this.name = name;
    this.message = message;
    this.code = code;
  }
  if (HAS_STACK) {
    var error = Error(message);
    error.name = DOM_EXCEPTION;
    defineProperty(this, 'stack', createPropertyDescriptor(1, clearErrorStack(error.stack, 1)));
  }
};

var DOMExceptionPrototype = $DOMException.prototype = create(ErrorPrototype);

var createGetterDescriptor = function (get) {
  return { enumerable: true, configurable: true, get: get };
};

var getterFor = function (key) {
  return createGetterDescriptor(function () {
    return getInternalState(this)[key];
  });
};

if (DESCRIPTORS) defineProperties(DOMExceptionPrototype, {
  name: getterFor('name'),
  message: getterFor('message'),
  code: getterFor('code')
});

defineProperty(DOMExceptionPrototype, 'constructor', createPropertyDescriptor(1, $DOMException));

// FF36- DOMException is a function, but can't be constructed
var INCORRECT_CONSTRUCTOR = fails(function () {
  return !(new NativeDOMException() instanceof Error);
});

// Safari 10.1 / Chrome 32- / IE8- DOMException.prototype.toString bugs
var INCORRECT_TO_STRING = INCORRECT_CONSTRUCTOR || fails(function () {
  return ErrorPrototype.toString !== errorToString || String(new NativeDOMException(1, 2)) !== '2: 1';
});

// Deno 1.6.3- DOMException.prototype.code just missed
var INCORRECT_CODE = INCORRECT_CONSTRUCTOR || fails(function () {
  return new NativeDOMException(1, 'DataCloneError').code !== 25;
});

// Deno 1.6.3- DOMException constants just missed
var MISSED_CONSTANTS = INCORRECT_CONSTRUCTOR
  || NativeDOMException[DATA_CLONE_ERR] !== 25
  || NativeDOMExceptionPrototype[DATA_CLONE_ERR] !== 25;

var FORCED_CONSTRUCTOR = IS_PURE ? INCORRECT_TO_STRING || INCORRECT_CODE || MISSED_CONSTANTS : INCORRECT_CONSTRUCTOR;

// `DOMException` constructor
// https://webidl.spec.whatwg.org/#idl-DOMException
$({ global: true, forced: FORCED_CONSTRUCTOR }, {
  DOMException: FORCED_CONSTRUCTOR ? $DOMException : NativeDOMException
});

var PolyfilledDOMException = getBuiltIn(DOM_EXCEPTION);
var PolyfilledDOMExceptionPrototype = PolyfilledDOMException.prototype;

if (INCORRECT_TO_STRING && (IS_PURE || NativeDOMException === PolyfilledDOMException)) {
  redefine(PolyfilledDOMExceptionPrototype, 'toString', errorToString);
}

if (INCORRECT_CODE && DESCRIPTORS && NativeDOMException === PolyfilledDOMException) {
  defineProperty(PolyfilledDOMExceptionPrototype, 'code', createGetterDescriptor(function () {
    return codeFor(anObject(this).name);
  }));
}

for (var key in DOMExceptionConstants) if (hasOwn(DOMExceptionConstants, key)) {
  var constant = DOMExceptionConstants[key];
  var constantName = constant.s;
  var descriptor = createPropertyDescriptor(6, constant.c);
  if (!hasOwn(PolyfilledDOMException, constantName)) {
    defineProperty(PolyfilledDOMException, constantName, descriptor);
  }
  if (!hasOwn(PolyfilledDOMExceptionPrototype, constantName)) {
    defineProperty(PolyfilledDOMExceptionPrototype, constantName, descriptor);
  }
}


/***/ }),

/***/ "./node_modules/core-js/modules/web.dom-exception.stack.js":
/*!*****************************************************************!*\
  !*** ./node_modules/core-js/modules/web.dom-exception.stack.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");
var defineProperty = (__webpack_require__(/*! ../internals/object-define-property */ "./node_modules/core-js/internals/object-define-property.js").f);
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var inheritIfRequired = __webpack_require__(/*! ../internals/inherit-if-required */ "./node_modules/core-js/internals/inherit-if-required.js");
var normalizeStringArgument = __webpack_require__(/*! ../internals/normalize-string-argument */ "./node_modules/core-js/internals/normalize-string-argument.js");
var DOMExceptionConstants = __webpack_require__(/*! ../internals/dom-exception-constants */ "./node_modules/core-js/internals/dom-exception-constants.js");
var clearErrorStack = __webpack_require__(/*! ../internals/clear-error-stack */ "./node_modules/core-js/internals/clear-error-stack.js");
var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");

var DOM_EXCEPTION = 'DOMException';
var Error = getBuiltIn('Error');
var NativeDOMException = getBuiltIn(DOM_EXCEPTION);

var $DOMException = function DOMException() {
  anInstance(this, DOMExceptionPrototype);
  var argumentsLength = arguments.length;
  var message = normalizeStringArgument(argumentsLength < 1 ? undefined : arguments[0]);
  var name = normalizeStringArgument(argumentsLength < 2 ? undefined : arguments[1], 'Error');
  var that = new NativeDOMException(message, name);
  var error = Error(message);
  error.name = DOM_EXCEPTION;
  defineProperty(that, 'stack', createPropertyDescriptor(1, clearErrorStack(error.stack, 1)));
  inheritIfRequired(that, this, $DOMException);
  return that;
};

var DOMExceptionPrototype = $DOMException.prototype = NativeDOMException.prototype;

var ERROR_HAS_STACK = 'stack' in Error(DOM_EXCEPTION);
var DOM_EXCEPTION_HAS_STACK = 'stack' in new NativeDOMException(1, 2);
var FORCED_CONSTRUCTOR = ERROR_HAS_STACK && !DOM_EXCEPTION_HAS_STACK;

// `DOMException` constructor patch for `.stack` where it's required
// https://webidl.spec.whatwg.org/#es-DOMException-specialness
$({ global: true, forced: IS_PURE || FORCED_CONSTRUCTOR }, { // TODO: fix export logic
  DOMException: FORCED_CONSTRUCTOR ? $DOMException : NativeDOMException
});

var PolyfilledDOMException = getBuiltIn(DOM_EXCEPTION);
var PolyfilledDOMExceptionPrototype = PolyfilledDOMException.prototype;

if (PolyfilledDOMExceptionPrototype.constructor !== PolyfilledDOMException) {
  if (!IS_PURE) {
    defineProperty(PolyfilledDOMExceptionPrototype, 'constructor', createPropertyDescriptor(1, PolyfilledDOMException));
  }

  for (var key in DOMExceptionConstants) if (hasOwn(DOMExceptionConstants, key)) {
    var constant = DOMExceptionConstants[key];
    var constantName = constant.s;
    if (!hasOwn(PolyfilledDOMException, constantName)) {
      defineProperty(PolyfilledDOMException, constantName, createPropertyDescriptor(6, constant.c));
    }
  }
}


/***/ }),

/***/ "./node_modules/core-js/modules/web.dom-exception.to-string-tag.js":
/*!*************************************************************************!*\
  !*** ./node_modules/core-js/modules/web.dom-exception.to-string-tag.js ***!
  \*************************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");

var DOM_EXCEPTION = 'DOMException';

setToStringTag(getBuiltIn(DOM_EXCEPTION), DOM_EXCEPTION);


/***/ }),

/***/ "./node_modules/core-js/modules/web.immediate.js":
/*!*******************************************************!*\
  !*** ./node_modules/core-js/modules/web.immediate.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var task = __webpack_require__(/*! ../internals/task */ "./node_modules/core-js/internals/task.js");

var FORCED = !global.setImmediate || !global.clearImmediate;

// http://w3c.github.io/setImmediate/
$({ global: true, bind: true, enumerable: true, forced: FORCED }, {
  // `setImmediate` method
  // http://w3c.github.io/setImmediate/#si-setImmediate
  setImmediate: task.set,
  // `clearImmediate` method
  // http://w3c.github.io/setImmediate/#si-clearImmediate
  clearImmediate: task.clear
});


/***/ }),

/***/ "./node_modules/core-js/modules/web.queue-microtask.js":
/*!*************************************************************!*\
  !*** ./node_modules/core-js/modules/web.queue-microtask.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var microtask = __webpack_require__(/*! ../internals/microtask */ "./node_modules/core-js/internals/microtask.js");
var aCallable = __webpack_require__(/*! ../internals/a-callable */ "./node_modules/core-js/internals/a-callable.js");
var validateArgumentsLength = __webpack_require__(/*! ../internals/validate-arguments-length */ "./node_modules/core-js/internals/validate-arguments-length.js");
var IS_NODE = __webpack_require__(/*! ../internals/engine-is-node */ "./node_modules/core-js/internals/engine-is-node.js");

var process = global.process;

// `queueMicrotask` method
// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-queuemicrotask
$({ global: true, enumerable: true, noTargetGet: true }, {
  queueMicrotask: function queueMicrotask(fn) {
    validateArgumentsLength(arguments.length, 1);
    aCallable(fn);
    var domain = IS_NODE && process.domain;
    microtask(domain ? domain.bind(fn) : fn);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/web.structured-clone.js":
/*!**************************************************************!*\
  !*** ./node_modules/core-js/modules/web.structured-clone.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var IS_PURE = __webpack_require__(/*! ../internals/is-pure */ "./node_modules/core-js/internals/is-pure.js");
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var getBuiltin = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var fails = __webpack_require__(/*! ../internals/fails */ "./node_modules/core-js/internals/fails.js");
var uid = __webpack_require__(/*! ../internals/uid */ "./node_modules/core-js/internals/uid.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var isConstructor = __webpack_require__(/*! ../internals/is-constructor */ "./node_modules/core-js/internals/is-constructor.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var isSymbol = __webpack_require__(/*! ../internals/is-symbol */ "./node_modules/core-js/internals/is-symbol.js");
var iterate = __webpack_require__(/*! ../internals/iterate */ "./node_modules/core-js/internals/iterate.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var classof = __webpack_require__(/*! ../internals/classof */ "./node_modules/core-js/internals/classof.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var createProperty = __webpack_require__(/*! ../internals/create-property */ "./node_modules/core-js/internals/create-property.js");
var createNonEnumerableProperty = __webpack_require__(/*! ../internals/create-non-enumerable-property */ "./node_modules/core-js/internals/create-non-enumerable-property.js");
var lengthOfArrayLike = __webpack_require__(/*! ../internals/length-of-array-like */ "./node_modules/core-js/internals/length-of-array-like.js");
var validateArgumentsLength = __webpack_require__(/*! ../internals/validate-arguments-length */ "./node_modules/core-js/internals/validate-arguments-length.js");
var regExpFlags = __webpack_require__(/*! ../internals/regexp-flags */ "./node_modules/core-js/internals/regexp-flags.js");
var ERROR_STACK_INSTALLABLE = __webpack_require__(/*! ../internals/error-stack-installable */ "./node_modules/core-js/internals/error-stack-installable.js");

var Object = global.Object;
var Date = global.Date;
var Error = global.Error;
var EvalError = global.EvalError;
var RangeError = global.RangeError;
var ReferenceError = global.ReferenceError;
var SyntaxError = global.SyntaxError;
var TypeError = global.TypeError;
var URIError = global.URIError;
var PerformanceMark = global.PerformanceMark;
var WebAssembly = global.WebAssembly;
var CompileError = WebAssembly && WebAssembly.CompileError || Error;
var LinkError = WebAssembly && WebAssembly.LinkError || Error;
var RuntimeError = WebAssembly && WebAssembly.RuntimeError || Error;
var DOMException = getBuiltin('DOMException');
var Set = getBuiltin('Set');
var Map = getBuiltin('Map');
var MapPrototype = Map.prototype;
var mapHas = uncurryThis(MapPrototype.has);
var mapGet = uncurryThis(MapPrototype.get);
var mapSet = uncurryThis(MapPrototype.set);
var setAdd = uncurryThis(Set.prototype.add);
var objectKeys = getBuiltin('Object', 'keys');
var push = uncurryThis([].push);
var booleanValueOf = uncurryThis(true.valueOf);
var numberValueOf = uncurryThis(1.0.valueOf);
var stringValueOf = uncurryThis(''.valueOf);
var getFlags = uncurryThis(regExpFlags);
var getTime = uncurryThis(Date.prototype.getTime);
var PERFORMANCE_MARK = uid('structuredClone');
var DATA_CLONE_ERROR = 'DataCloneError';
var TRANSFERRING = 'Transferring';

var checkBasicSemantic = function (structuredCloneImplementation) {
  return !fails(function () {
    var set1 = new global.Set([7]);
    var set2 = structuredCloneImplementation(set1);
    var number = structuredCloneImplementation(Object(7));
    return set2 == set1 || !set2.has(7) || typeof number != 'object' || number != 7;
  }) && structuredCloneImplementation;
};

// https://github.com/whatwg/html/pull/5749
var checkNewErrorsSemantic = function (structuredCloneImplementation) {
  return !fails(function () {
    var test = structuredCloneImplementation(new global.AggregateError([1], PERFORMANCE_MARK, { cause: 3 }));
    return test.name != 'AggregateError' || test.errors[0] != 1 || test.message != PERFORMANCE_MARK || test.cause != 3;
  }) && structuredCloneImplementation;
};

// FF94+, Safari TP134+, Chrome Canary 98+, NodeJS 17.0+, Deno 1.13+
// current FF and Safari implementations can't clone errors
// https://bugzilla.mozilla.org/show_bug.cgi?id=1556604
// no one of current implementations supports new (html/5749) error cloning semantic
var nativeStructuredClone = global.structuredClone;

var FORCED_REPLACEMENT = IS_PURE || !checkNewErrorsSemantic(nativeStructuredClone);

// Chrome 82+, Safari 14.1+, Deno 1.11+
// Chrome 78-81 implementation swaps `.name` and `.message` of cloned `DOMException`
// Safari 14.1 implementation doesn't clone some `RegExp` flags, so requires a workaround
// current Safari implementation can't clone errors
// Deno 1.2-1.10 implementations too naive
// NodeJS 16.0+ does not have `PerformanceMark` constructor, structured cloning implementation
//   from `performance.mark` is too naive and can't clone, for example, `RegExp` or some boxed primitives
//   https://github.com/nodejs/node/issues/40840
// no one of current implementations supports new (html/5749) error cloning semantic
var structuredCloneFromMark = !nativeStructuredClone && checkBasicSemantic(function (value) {
  return new PerformanceMark(PERFORMANCE_MARK, { detail: value }).detail;
});

var nativeRestrictedStructuredClone = checkBasicSemantic(nativeStructuredClone) || structuredCloneFromMark;

var throwUncloneable = function (type) {
  throw new DOMException('Uncloneable type: ' + type, DATA_CLONE_ERROR);
};

var throwUnpolyfillable = function (type, kind) {
  throw new DOMException((kind || 'Cloning') + ' of ' + type + ' cannot be properly polyfilled in this engine', DATA_CLONE_ERROR);
};

var structuredCloneInternal = function (value, map) {
  if (isSymbol(value)) throwUncloneable('Symbol');
  if (!isObject(value)) return value;
  // effectively preserves circular references
  if (map) {
    if (mapHas(map, value)) return mapGet(map, value);
  } else map = new Map();

  var type = classof(value);
  var deep = false;
  var C, name, cloned, dataTransfer, i, length, keys, key, source, target;

  switch (type) {
    case 'Array':
      cloned = [];
      deep = true;
      break;
    case 'Object':
      cloned = {};
      deep = true;
      break;
    case 'Map':
      cloned = new Map();
      deep = true;
      break;
    case 'Set':
      cloned = new Set();
      deep = true;
      break;
    case 'RegExp':
      // in this block because of a Safari 14.1 bug
      // old FF does not clone regexes passed to the constructor, so get the source and flags directly
      cloned = new RegExp(value.source, 'flags' in value ? value.flags : getFlags(value));
      break;
    case 'Error':
      name = value.name;
      switch (name) {
        case 'AggregateError':
          cloned = getBuiltin('AggregateError')([]);
          break;
        case 'EvalError':
          cloned = EvalError();
          break;
        case 'RangeError':
          cloned = RangeError();
          break;
        case 'ReferenceError':
          cloned = ReferenceError();
          break;
        case 'SyntaxError':
          cloned = SyntaxError();
          break;
        case 'TypeError':
          cloned = TypeError();
          break;
        case 'URIError':
          cloned = URIError();
          break;
        case 'CompileError':
          cloned = CompileError();
          break;
        case 'LinkError':
          cloned = LinkError();
          break;
        case 'RuntimeError':
          cloned = RuntimeError();
          break;
        default:
          cloned = Error();
      }
      deep = true;
      break;
    case 'DOMException':
      cloned = new DOMException(value.message, value.name);
      deep = true;
      break;
    case 'DataView':
    case 'Int8Array':
    case 'Uint8Array':
    case 'Uint8ClampedArray':
    case 'Int16Array':
    case 'Uint16Array':
    case 'Int32Array':
    case 'Uint32Array':
    case 'Float32Array':
    case 'Float64Array':
    case 'BigInt64Array':
    case 'BigUint64Array':
      C = global[type];
      // in some old engines like Safari 9, typeof C is 'object'
      // on Uint8ClampedArray or some other constructors
      if (!isObject(C)) throwUnpolyfillable(type);
      cloned = new C(
        // this is safe, since arraybuffer cannot have circular references
        structuredCloneInternal(value.buffer, map),
        value.byteOffset,
        type === 'DataView' ? value.byteLength : value.length
      );
      break;
    case 'DOMQuad':
      try {
        cloned = new DOMQuad(
          structuredCloneInternal(value.p1, map),
          structuredCloneInternal(value.p2, map),
          structuredCloneInternal(value.p3, map),
          structuredCloneInternal(value.p4, map)
        );
      } catch (error) {
        if (nativeRestrictedStructuredClone) {
          cloned = nativeRestrictedStructuredClone(value);
        } else throwUnpolyfillable(type);
      }
      break;
    case 'FileList':
      C = global.DataTransfer;
      if (isConstructor(C)) {
        dataTransfer = new C();
        for (i = 0, length = lengthOfArrayLike(value); i < length; i++) {
          dataTransfer.items.add(structuredCloneInternal(value[i], map));
        }
        cloned = dataTransfer.files;
      } else if (nativeRestrictedStructuredClone) {
        cloned = nativeRestrictedStructuredClone(value);
      } else throwUnpolyfillable(type);
      break;
    case 'ImageData':
      // Safari 9 ImageData is a constructor, but typeof ImageData is 'object'
      try {
        cloned = new ImageData(
          structuredCloneInternal(value.data, map),
          value.width,
          value.height,
          { colorSpace: value.colorSpace }
        );
      } catch (error) {
        if (nativeRestrictedStructuredClone) {
          cloned = nativeRestrictedStructuredClone(value);
        } else throwUnpolyfillable(type);
      } break;
    default:
      if (nativeRestrictedStructuredClone) {
        cloned = nativeRestrictedStructuredClone(value);
      } else switch (type) {
        case 'BigInt':
          // can be a 3rd party polyfill
          cloned = Object(value.valueOf());
          break;
        case 'Boolean':
          cloned = Object(booleanValueOf(value));
          break;
        case 'Number':
          cloned = Object(numberValueOf(value));
          break;
        case 'String':
          cloned = Object(stringValueOf(value));
          break;
        case 'Date':
          cloned = new Date(getTime(value));
          break;
        case 'ArrayBuffer':
          C = global.DataView;
          // `ArrayBuffer#slice` is not available in IE10
          // `ArrayBuffer#slice` and `DataView` are not available in old FF
          if (!C && typeof value.slice != 'function') throwUnpolyfillable(type);
          // detached buffers throws in `DataView` and `.slice`
          try {
            if (typeof value.slice == 'function') {
              cloned = value.slice(0);
            } else {
              length = value.byteLength;
              cloned = new ArrayBuffer(length);
              source = new C(value);
              target = new C(cloned);
              for (i = 0; i < length; i++) {
                target.setUint8(i, source.getUint8(i));
              }
            }
          } catch (error) {
            throw new DOMException('ArrayBuffer is detached', DATA_CLONE_ERROR);
          } break;
        case 'SharedArrayBuffer':
          // SharedArrayBuffer should use shared memory, we can't polyfill it, so return the original
          cloned = value;
          break;
        case 'Blob':
          try {
            cloned = value.slice(0, value.size, value.type);
          } catch (error) {
            throwUnpolyfillable(type);
          } break;
        case 'DOMPoint':
        case 'DOMPointReadOnly':
          C = global[type];
          try {
            cloned = C.fromPoint
              ? C.fromPoint(value)
              : new C(value.x, value.y, value.z, value.w);
          } catch (error) {
            throwUnpolyfillable(type);
          } break;
        case 'DOMRect':
        case 'DOMRectReadOnly':
          C = global[type];
          try {
            cloned = C.fromRect
              ? C.fromRect(value)
              : new C(value.x, value.y, value.width, value.height);
          } catch (error) {
            throwUnpolyfillable(type);
          } break;
        case 'DOMMatrix':
        case 'DOMMatrixReadOnly':
          C = global[type];
          try {
            cloned = C.fromMatrix
              ? C.fromMatrix(value)
              : new C(value);
          } catch (error) {
            throwUnpolyfillable(type);
          } break;
        case 'AudioData':
        case 'VideoFrame':
          if (!isCallable(value.clone)) throwUnpolyfillable(type);
          try {
            cloned = value.clone();
          } catch (error) {
            throwUncloneable(type);
          } break;
        case 'File':
          try {
            cloned = new File([value], value.name, value);
          } catch (error) {
            throwUnpolyfillable(type);
          } break;
        case 'CryptoKey':
        case 'GPUCompilationMessage':
        case 'GPUCompilationInfo':
        case 'ImageBitmap':
        case 'RTCCertificate':
        case 'WebAssembly.Module':
          throwUnpolyfillable(type);
          // break omitted
        default:
          throwUncloneable(type);
      }
  }

  mapSet(map, value, cloned);

  if (deep) switch (type) {
    case 'Array':
    case 'Object':
      keys = objectKeys(value);
      for (i = 0, length = lengthOfArrayLike(keys); i < length; i++) {
        key = keys[i];
        createProperty(cloned, key, structuredCloneInternal(value[key], map));
      } break;
    case 'Map':
      value.forEach(function (v, k) {
        mapSet(cloned, structuredCloneInternal(k, map), structuredCloneInternal(v, map));
      });
      break;
    case 'Set':
      value.forEach(function (v) {
        setAdd(cloned, structuredCloneInternal(v, map));
      });
      break;
    case 'Error':
      createNonEnumerableProperty(cloned, 'message', structuredCloneInternal(value.message, map));
      if (hasOwn(value, 'cause')) {
        createNonEnumerableProperty(cloned, 'cause', structuredCloneInternal(value.cause, map));
      }
      if (name == 'AggregateError') {
        cloned.errors = structuredCloneInternal(value.errors, map);
      } // break omitted
    case 'DOMException':
      if (ERROR_STACK_INSTALLABLE) {
        createNonEnumerableProperty(cloned, 'stack', structuredCloneInternal(value.stack, map));
      }
  }

  return cloned;
};

var PROPER_TRANSFER = nativeStructuredClone && !fails(function () {
  var buffer = new ArrayBuffer(8);
  var clone = nativeStructuredClone(buffer, { transfer: [buffer] });
  return buffer.byteLength != 0 || clone.byteLength != 8;
});

var tryToTransfer = function (rawTransfer, map) {
  if (!isObject(rawTransfer)) throw TypeError('Transfer option cannot be converted to a sequence');

  var transfer = [];

  iterate(rawTransfer, function (value) {
    push(transfer, anObject(value));
  });

  var i = 0;
  var length = lengthOfArrayLike(transfer);
  var value, type, C, transferredArray, transferred, canvas, context;

  if (PROPER_TRANSFER) {
    transferredArray = nativeStructuredClone(transfer, { transfer: transfer });
    while (i < length) mapSet(map, transfer[i], transferredArray[i++]);
  } else while (i < length) {
    value = transfer[i++];
    if (mapHas(map, value)) throw new DOMException('Duplicate transferable', DATA_CLONE_ERROR);

    type = classof(value);

    switch (type) {
      case 'ImageBitmap':
        C = global.OffscreenCanvas;
        if (!isConstructor(C)) throwUnpolyfillable(type, TRANSFERRING);
        try {
          canvas = new C(value.width, value.height);
          context = canvas.getContext('bitmaprenderer');
          context.transferFromImageBitmap(value);
          transferred = canvas.transferToImageBitmap();
        } catch (error) { /* empty */ }
        break;
      case 'AudioData':
      case 'VideoFrame':
        if (!isCallable(value.clone) || !isCallable(value.close)) throwUnpolyfillable(type, TRANSFERRING);
        try {
          transferred = value.clone();
          value.close();
        } catch (error) { /* empty */ }
        break;
      case 'ArrayBuffer':
      case 'MessagePort':
      case 'OffscreenCanvas':
      case 'ReadableStream':
      case 'TransformStream':
      case 'WritableStream':
        throwUnpolyfillable(type, TRANSFERRING);
    }

    if (transferred === undefined) throw new DOMException('This object cannot be transferred: ' + type, DATA_CLONE_ERROR);
    mapSet(map, value, transferred);
  }
};

$({ global: true, enumerable: true, sham: !PROPER_TRANSFER, forced: FORCED_REPLACEMENT }, {
  structuredClone: function structuredClone(value /* , { transfer } */) {
    var options = validateArgumentsLength(arguments.length, 1) > 1 ? anObject(arguments[1]) : undefined;
    var transfer = options ? options.transfer : undefined;
    var map;

    if (transfer !== undefined) {
      map = new Map();
      tryToTransfer(transfer, map);
    }

    return structuredCloneInternal(value, map);
  }
});


/***/ }),

/***/ "./node_modules/core-js/modules/web.timers.js":
/*!****************************************************!*\
  !*** ./node_modules/core-js/modules/web.timers.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var apply = __webpack_require__(/*! ../internals/function-apply */ "./node_modules/core-js/internals/function-apply.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var userAgent = __webpack_require__(/*! ../internals/engine-user-agent */ "./node_modules/core-js/internals/engine-user-agent.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice */ "./node_modules/core-js/internals/array-slice.js");
var validateArgumentsLength = __webpack_require__(/*! ../internals/validate-arguments-length */ "./node_modules/core-js/internals/validate-arguments-length.js");

var MSIE = /MSIE .\./.test(userAgent); // <- dirty ie9- check
var Function = global.Function;

var wrap = function (scheduler) {
  return function (handler, timeout /* , ...arguments */) {
    var boundArgs = validateArgumentsLength(arguments.length, 1) > 2;
    var fn = isCallable(handler) ? handler : Function(handler);
    var args = boundArgs ? arraySlice(arguments, 2) : undefined;
    return scheduler(boundArgs ? function () {
      apply(fn, this, args);
    } : fn, timeout);
  };
};

// ie9- setTimeout & setInterval additional parameters fix
// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#timers
$({ global: true, bind: true, forced: MSIE }, {
  // `setTimeout` method
  // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-settimeout
  setTimeout: wrap(global.setTimeout),
  // `setInterval` method
  // https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-setinterval
  setInterval: wrap(global.setInterval)
});


/***/ }),

/***/ "./node_modules/core-js/modules/web.url-search-params.js":
/*!***************************************************************!*\
  !*** ./node_modules/core-js/modules/web.url-search-params.js ***!
  \***************************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`
__webpack_require__(/*! ../modules/es.array.iterator */ "./node_modules/core-js/modules/es.array.iterator.js");
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var getBuiltIn = __webpack_require__(/*! ../internals/get-built-in */ "./node_modules/core-js/internals/get-built-in.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var USE_NATIVE_URL = __webpack_require__(/*! ../internals/native-url */ "./node_modules/core-js/internals/native-url.js");
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var redefineAll = __webpack_require__(/*! ../internals/redefine-all */ "./node_modules/core-js/internals/redefine-all.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");
var createIteratorConstructor = __webpack_require__(/*! ../internals/create-iterator-constructor */ "./node_modules/core-js/internals/create-iterator-constructor.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var isCallable = __webpack_require__(/*! ../internals/is-callable */ "./node_modules/core-js/internals/is-callable.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var classof = __webpack_require__(/*! ../internals/classof */ "./node_modules/core-js/internals/classof.js");
var anObject = __webpack_require__(/*! ../internals/an-object */ "./node_modules/core-js/internals/an-object.js");
var isObject = __webpack_require__(/*! ../internals/is-object */ "./node_modules/core-js/internals/is-object.js");
var $toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var create = __webpack_require__(/*! ../internals/object-create */ "./node_modules/core-js/internals/object-create.js");
var createPropertyDescriptor = __webpack_require__(/*! ../internals/create-property-descriptor */ "./node_modules/core-js/internals/create-property-descriptor.js");
var getIterator = __webpack_require__(/*! ../internals/get-iterator */ "./node_modules/core-js/internals/get-iterator.js");
var getIteratorMethod = __webpack_require__(/*! ../internals/get-iterator-method */ "./node_modules/core-js/internals/get-iterator-method.js");
var validateArgumentsLength = __webpack_require__(/*! ../internals/validate-arguments-length */ "./node_modules/core-js/internals/validate-arguments-length.js");
var wellKnownSymbol = __webpack_require__(/*! ../internals/well-known-symbol */ "./node_modules/core-js/internals/well-known-symbol.js");
var arraySort = __webpack_require__(/*! ../internals/array-sort */ "./node_modules/core-js/internals/array-sort.js");

var ITERATOR = wellKnownSymbol('iterator');
var URL_SEARCH_PARAMS = 'URLSearchParams';
var URL_SEARCH_PARAMS_ITERATOR = URL_SEARCH_PARAMS + 'Iterator';
var setInternalState = InternalStateModule.set;
var getInternalParamsState = InternalStateModule.getterFor(URL_SEARCH_PARAMS);
var getInternalIteratorState = InternalStateModule.getterFor(URL_SEARCH_PARAMS_ITERATOR);

var n$Fetch = getBuiltIn('fetch');
var N$Request = getBuiltIn('Request');
var Headers = getBuiltIn('Headers');
var RequestPrototype = N$Request && N$Request.prototype;
var HeadersPrototype = Headers && Headers.prototype;
var RegExp = global.RegExp;
var TypeError = global.TypeError;
var decodeURIComponent = global.decodeURIComponent;
var encodeURIComponent = global.encodeURIComponent;
var charAt = uncurryThis(''.charAt);
var join = uncurryThis([].join);
var push = uncurryThis([].push);
var replace = uncurryThis(''.replace);
var shift = uncurryThis([].shift);
var splice = uncurryThis([].splice);
var split = uncurryThis(''.split);
var stringSlice = uncurryThis(''.slice);

var plus = /\+/g;
var sequences = Array(4);

var percentSequence = function (bytes) {
  return sequences[bytes - 1] || (sequences[bytes - 1] = RegExp('((?:%[\\da-f]{2}){' + bytes + '})', 'gi'));
};

var percentDecode = function (sequence) {
  try {
    return decodeURIComponent(sequence);
  } catch (error) {
    return sequence;
  }
};

var deserialize = function (it) {
  var result = replace(it, plus, ' ');
  var bytes = 4;
  try {
    return decodeURIComponent(result);
  } catch (error) {
    while (bytes) {
      result = replace(result, percentSequence(bytes--), percentDecode);
    }
    return result;
  }
};

var find = /[!'()~]|%20/g;

var replacements = {
  '!': '%21',
  "'": '%27',
  '(': '%28',
  ')': '%29',
  '~': '%7E',
  '%20': '+'
};

var replacer = function (match) {
  return replacements[match];
};

var serialize = function (it) {
  return replace(encodeURIComponent(it), find, replacer);
};

var URLSearchParamsIterator = createIteratorConstructor(function Iterator(params, kind) {
  setInternalState(this, {
    type: URL_SEARCH_PARAMS_ITERATOR,
    iterator: getIterator(getInternalParamsState(params).entries),
    kind: kind
  });
}, 'Iterator', function next() {
  var state = getInternalIteratorState(this);
  var kind = state.kind;
  var step = state.iterator.next();
  var entry = step.value;
  if (!step.done) {
    step.value = kind === 'keys' ? entry.key : kind === 'values' ? entry.value : [entry.key, entry.value];
  } return step;
}, true);

var URLSearchParamsState = function (init) {
  this.entries = [];
  this.url = null;

  if (init !== undefined) {
    if (isObject(init)) this.parseObject(init);
    else this.parseQuery(typeof init == 'string' ? charAt(init, 0) === '?' ? stringSlice(init, 1) : init : $toString(init));
  }
};

URLSearchParamsState.prototype = {
  type: URL_SEARCH_PARAMS,
  bindURL: function (url) {
    this.url = url;
    this.update();
  },
  parseObject: function (object) {
    var iteratorMethod = getIteratorMethod(object);
    var iterator, next, step, entryIterator, entryNext, first, second;

    if (iteratorMethod) {
      iterator = getIterator(object, iteratorMethod);
      next = iterator.next;
      while (!(step = call(next, iterator)).done) {
        entryIterator = getIterator(anObject(step.value));
        entryNext = entryIterator.next;
        if (
          (first = call(entryNext, entryIterator)).done ||
          (second = call(entryNext, entryIterator)).done ||
          !call(entryNext, entryIterator).done
        ) throw TypeError('Expected sequence with length 2');
        push(this.entries, { key: $toString(first.value), value: $toString(second.value) });
      }
    } else for (var key in object) if (hasOwn(object, key)) {
      push(this.entries, { key: key, value: $toString(object[key]) });
    }
  },
  parseQuery: function (query) {
    if (query) {
      var attributes = split(query, '&');
      var index = 0;
      var attribute, entry;
      while (index < attributes.length) {
        attribute = attributes[index++];
        if (attribute.length) {
          entry = split(attribute, '=');
          push(this.entries, {
            key: deserialize(shift(entry)),
            value: deserialize(join(entry, '='))
          });
        }
      }
    }
  },
  serialize: function () {
    var entries = this.entries;
    var result = [];
    var index = 0;
    var entry;
    while (index < entries.length) {
      entry = entries[index++];
      push(result, serialize(entry.key) + '=' + serialize(entry.value));
    } return join(result, '&');
  },
  update: function () {
    this.entries.length = 0;
    this.parseQuery(this.url.query);
  },
  updateURL: function () {
    if (this.url) this.url.update();
  }
};

// `URLSearchParams` constructor
// https://url.spec.whatwg.org/#interface-urlsearchparams
var URLSearchParamsConstructor = function URLSearchParams(/* init */) {
  anInstance(this, URLSearchParamsPrototype);
  var init = arguments.length > 0 ? arguments[0] : undefined;
  setInternalState(this, new URLSearchParamsState(init));
};

var URLSearchParamsPrototype = URLSearchParamsConstructor.prototype;

redefineAll(URLSearchParamsPrototype, {
  // `URLSearchParams.prototype.append` method
  // https://url.spec.whatwg.org/#dom-urlsearchparams-append
  append: function append(name, value) {
    validateArgumentsLength(arguments.length, 2);
    var state = getInternalParamsState(this);
    push(state.entries, { key: $toString(name), value: $toString(value) });
    state.updateURL();
  },
  // `URLSearchParams.prototype.delete` method
  // https://url.spec.whatwg.org/#dom-urlsearchparams-delete
  'delete': function (name) {
    validateArgumentsLength(arguments.length, 1);
    var state = getInternalParamsState(this);
    var entries = state.entries;
    var key = $toString(name);
    var index = 0;
    while (index < entries.length) {
      if (entries[index].key === key) splice(entries, index, 1);
      else index++;
    }
    state.updateURL();
  },
  // `URLSearchParams.prototype.get` method
  // https://url.spec.whatwg.org/#dom-urlsearchparams-get
  get: function get(name) {
    validateArgumentsLength(arguments.length, 1);
    var entries = getInternalParamsState(this).entries;
    var key = $toString(name);
    var index = 0;
    for (; index < entries.length; index++) {
      if (entries[index].key === key) return entries[index].value;
    }
    return null;
  },
  // `URLSearchParams.prototype.getAll` method
  // https://url.spec.whatwg.org/#dom-urlsearchparams-getall
  getAll: function getAll(name) {
    validateArgumentsLength(arguments.length, 1);
    var entries = getInternalParamsState(this).entries;
    var key = $toString(name);
    var result = [];
    var index = 0;
    for (; index < entries.length; index++) {
      if (entries[index].key === key) push(result, entries[index].value);
    }
    return result;
  },
  // `URLSearchParams.prototype.has` method
  // https://url.spec.whatwg.org/#dom-urlsearchparams-has
  has: function has(name) {
    validateArgumentsLength(arguments.length, 1);
    var entries = getInternalParamsState(this).entries;
    var key = $toString(name);
    var index = 0;
    while (index < entries.length) {
      if (entries[index++].key === key) return true;
    }
    return false;
  },
  // `URLSearchParams.prototype.set` method
  // https://url.spec.whatwg.org/#dom-urlsearchparams-set
  set: function set(name, value) {
    validateArgumentsLength(arguments.length, 1);
    var state = getInternalParamsState(this);
    var entries = state.entries;
    var found = false;
    var key = $toString(name);
    var val = $toString(value);
    var index = 0;
    var entry;
    for (; index < entries.length; index++) {
      entry = entries[index];
      if (entry.key === key) {
        if (found) splice(entries, index--, 1);
        else {
          found = true;
          entry.value = val;
        }
      }
    }
    if (!found) push(entries, { key: key, value: val });
    state.updateURL();
  },
  // `URLSearchParams.prototype.sort` method
  // https://url.spec.whatwg.org/#dom-urlsearchparams-sort
  sort: function sort() {
    var state = getInternalParamsState(this);
    arraySort(state.entries, function (a, b) {
      return a.key > b.key ? 1 : -1;
    });
    state.updateURL();
  },
  // `URLSearchParams.prototype.forEach` method
  forEach: function forEach(callback /* , thisArg */) {
    var entries = getInternalParamsState(this).entries;
    var boundFunction = bind(callback, arguments.length > 1 ? arguments[1] : undefined);
    var index = 0;
    var entry;
    while (index < entries.length) {
      entry = entries[index++];
      boundFunction(entry.value, entry.key, this);
    }
  },
  // `URLSearchParams.prototype.keys` method
  keys: function keys() {
    return new URLSearchParamsIterator(this, 'keys');
  },
  // `URLSearchParams.prototype.values` method
  values: function values() {
    return new URLSearchParamsIterator(this, 'values');
  },
  // `URLSearchParams.prototype.entries` method
  entries: function entries() {
    return new URLSearchParamsIterator(this, 'entries');
  }
}, { enumerable: true });

// `URLSearchParams.prototype[@@iterator]` method
redefine(URLSearchParamsPrototype, ITERATOR, URLSearchParamsPrototype.entries, { name: 'entries' });

// `URLSearchParams.prototype.toString` method
// https://url.spec.whatwg.org/#urlsearchparams-stringification-behavior
redefine(URLSearchParamsPrototype, 'toString', function toString() {
  return getInternalParamsState(this).serialize();
}, { enumerable: true });

setToStringTag(URLSearchParamsConstructor, URL_SEARCH_PARAMS);

$({ global: true, forced: !USE_NATIVE_URL }, {
  URLSearchParams: URLSearchParamsConstructor
});

// Wrap `fetch` and `Request` for correct work with polyfilled `URLSearchParams`
if (!USE_NATIVE_URL && isCallable(Headers)) {
  var headersHas = uncurryThis(HeadersPrototype.has);
  var headersSet = uncurryThis(HeadersPrototype.set);

  var wrapRequestOptions = function (init) {
    if (isObject(init)) {
      var body = init.body;
      var headers;
      if (classof(body) === URL_SEARCH_PARAMS) {
        headers = init.headers ? new Headers(init.headers) : new Headers();
        if (!headersHas(headers, 'content-type')) {
          headersSet(headers, 'content-type', 'application/x-www-form-urlencoded;charset=UTF-8');
        }
        return create(init, {
          body: createPropertyDescriptor(0, $toString(body)),
          headers: createPropertyDescriptor(0, headers)
        });
      }
    } return init;
  };

  if (isCallable(n$Fetch)) {
    $({ global: true, enumerable: true, forced: true }, {
      fetch: function fetch(input /* , init */) {
        return n$Fetch(input, arguments.length > 1 ? wrapRequestOptions(arguments[1]) : {});
      }
    });
  }

  if (isCallable(N$Request)) {
    var RequestConstructor = function Request(input /* , init */) {
      anInstance(this, RequestPrototype);
      return new N$Request(input, arguments.length > 1 ? wrapRequestOptions(arguments[1]) : {});
    };

    RequestPrototype.constructor = RequestConstructor;
    RequestConstructor.prototype = RequestPrototype;

    $({ global: true, forced: true }, {
      Request: RequestConstructor
    });
  }
}

module.exports = {
  URLSearchParams: URLSearchParamsConstructor,
  getState: getInternalParamsState
};


/***/ }),

/***/ "./node_modules/core-js/modules/web.url.js":
/*!*************************************************!*\
  !*** ./node_modules/core-js/modules/web.url.js ***!
  \*************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

// TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`
__webpack_require__(/*! ../modules/es.string.iterator */ "./node_modules/core-js/modules/es.string.iterator.js");
var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var DESCRIPTORS = __webpack_require__(/*! ../internals/descriptors */ "./node_modules/core-js/internals/descriptors.js");
var USE_NATIVE_URL = __webpack_require__(/*! ../internals/native-url */ "./node_modules/core-js/internals/native-url.js");
var global = __webpack_require__(/*! ../internals/global */ "./node_modules/core-js/internals/global.js");
var bind = __webpack_require__(/*! ../internals/function-bind-context */ "./node_modules/core-js/internals/function-bind-context.js");
var uncurryThis = __webpack_require__(/*! ../internals/function-uncurry-this */ "./node_modules/core-js/internals/function-uncurry-this.js");
var defineProperties = (__webpack_require__(/*! ../internals/object-define-properties */ "./node_modules/core-js/internals/object-define-properties.js").f);
var redefine = __webpack_require__(/*! ../internals/redefine */ "./node_modules/core-js/internals/redefine.js");
var anInstance = __webpack_require__(/*! ../internals/an-instance */ "./node_modules/core-js/internals/an-instance.js");
var hasOwn = __webpack_require__(/*! ../internals/has-own-property */ "./node_modules/core-js/internals/has-own-property.js");
var assign = __webpack_require__(/*! ../internals/object-assign */ "./node_modules/core-js/internals/object-assign.js");
var arrayFrom = __webpack_require__(/*! ../internals/array-from */ "./node_modules/core-js/internals/array-from.js");
var arraySlice = __webpack_require__(/*! ../internals/array-slice-simple */ "./node_modules/core-js/internals/array-slice-simple.js");
var codeAt = (__webpack_require__(/*! ../internals/string-multibyte */ "./node_modules/core-js/internals/string-multibyte.js").codeAt);
var toASCII = __webpack_require__(/*! ../internals/string-punycode-to-ascii */ "./node_modules/core-js/internals/string-punycode-to-ascii.js");
var $toString = __webpack_require__(/*! ../internals/to-string */ "./node_modules/core-js/internals/to-string.js");
var setToStringTag = __webpack_require__(/*! ../internals/set-to-string-tag */ "./node_modules/core-js/internals/set-to-string-tag.js");
var validateArgumentsLength = __webpack_require__(/*! ../internals/validate-arguments-length */ "./node_modules/core-js/internals/validate-arguments-length.js");
var URLSearchParamsModule = __webpack_require__(/*! ../modules/web.url-search-params */ "./node_modules/core-js/modules/web.url-search-params.js");
var InternalStateModule = __webpack_require__(/*! ../internals/internal-state */ "./node_modules/core-js/internals/internal-state.js");

var setInternalState = InternalStateModule.set;
var getInternalURLState = InternalStateModule.getterFor('URL');
var URLSearchParams = URLSearchParamsModule.URLSearchParams;
var getInternalSearchParamsState = URLSearchParamsModule.getState;

var NativeURL = global.URL;
var TypeError = global.TypeError;
var parseInt = global.parseInt;
var floor = Math.floor;
var pow = Math.pow;
var charAt = uncurryThis(''.charAt);
var exec = uncurryThis(/./.exec);
var join = uncurryThis([].join);
var numberToString = uncurryThis(1.0.toString);
var pop = uncurryThis([].pop);
var push = uncurryThis([].push);
var replace = uncurryThis(''.replace);
var shift = uncurryThis([].shift);
var split = uncurryThis(''.split);
var stringSlice = uncurryThis(''.slice);
var toLowerCase = uncurryThis(''.toLowerCase);
var unshift = uncurryThis([].unshift);

var INVALID_AUTHORITY = 'Invalid authority';
var INVALID_SCHEME = 'Invalid scheme';
var INVALID_HOST = 'Invalid host';
var INVALID_PORT = 'Invalid port';

var ALPHA = /[a-z]/i;
// eslint-disable-next-line regexp/no-obscure-range -- safe
var ALPHANUMERIC = /[\d+-.a-z]/i;
var DIGIT = /\d/;
var HEX_START = /^0x/i;
var OCT = /^[0-7]+$/;
var DEC = /^\d+$/;
var HEX = /^[\da-f]+$/i;
/* eslint-disable regexp/no-control-character -- safe */
var FORBIDDEN_HOST_CODE_POINT = /[\0\t\n\r #%/:<>?@[\\\]^|]/;
var FORBIDDEN_HOST_CODE_POINT_EXCLUDING_PERCENT = /[\0\t\n\r #/:<>?@[\\\]^|]/;
var LEADING_AND_TRAILING_C0_CONTROL_OR_SPACE = /^[\u0000-\u0020]+|[\u0000-\u0020]+$/g;
var TAB_AND_NEW_LINE = /[\t\n\r]/g;
/* eslint-enable regexp/no-control-character -- safe */
var EOF;

// https://url.spec.whatwg.org/#ipv4-number-parser
var parseIPv4 = function (input) {
  var parts = split(input, '.');
  var partsLength, numbers, index, part, radix, number, ipv4;
  if (parts.length && parts[parts.length - 1] == '') {
    parts.length--;
  }
  partsLength = parts.length;
  if (partsLength > 4) return input;
  numbers = [];
  for (index = 0; index < partsLength; index++) {
    part = parts[index];
    if (part == '') return input;
    radix = 10;
    if (part.length > 1 && charAt(part, 0) == '0') {
      radix = exec(HEX_START, part) ? 16 : 8;
      part = stringSlice(part, radix == 8 ? 1 : 2);
    }
    if (part === '') {
      number = 0;
    } else {
      if (!exec(radix == 10 ? DEC : radix == 8 ? OCT : HEX, part)) return input;
      number = parseInt(part, radix);
    }
    push(numbers, number);
  }
  for (index = 0; index < partsLength; index++) {
    number = numbers[index];
    if (index == partsLength - 1) {
      if (number >= pow(256, 5 - partsLength)) return null;
    } else if (number > 255) return null;
  }
  ipv4 = pop(numbers);
  for (index = 0; index < numbers.length; index++) {
    ipv4 += numbers[index] * pow(256, 3 - index);
  }
  return ipv4;
};

// https://url.spec.whatwg.org/#concept-ipv6-parser
// eslint-disable-next-line max-statements -- TODO
var parseIPv6 = function (input) {
  var address = [0, 0, 0, 0, 0, 0, 0, 0];
  var pieceIndex = 0;
  var compress = null;
  var pointer = 0;
  var value, length, numbersSeen, ipv4Piece, number, swaps, swap;

  var chr = function () {
    return charAt(input, pointer);
  };

  if (chr() == ':') {
    if (charAt(input, 1) != ':') return;
    pointer += 2;
    pieceIndex++;
    compress = pieceIndex;
  }
  while (chr()) {
    if (pieceIndex == 8) return;
    if (chr() == ':') {
      if (compress !== null) return;
      pointer++;
      pieceIndex++;
      compress = pieceIndex;
      continue;
    }
    value = length = 0;
    while (length < 4 && exec(HEX, chr())) {
      value = value * 16 + parseInt(chr(), 16);
      pointer++;
      length++;
    }
    if (chr() == '.') {
      if (length == 0) return;
      pointer -= length;
      if (pieceIndex > 6) return;
      numbersSeen = 0;
      while (chr()) {
        ipv4Piece = null;
        if (numbersSeen > 0) {
          if (chr() == '.' && numbersSeen < 4) pointer++;
          else return;
        }
        if (!exec(DIGIT, chr())) return;
        while (exec(DIGIT, chr())) {
          number = parseInt(chr(), 10);
          if (ipv4Piece === null) ipv4Piece = number;
          else if (ipv4Piece == 0) return;
          else ipv4Piece = ipv4Piece * 10 + number;
          if (ipv4Piece > 255) return;
          pointer++;
        }
        address[pieceIndex] = address[pieceIndex] * 256 + ipv4Piece;
        numbersSeen++;
        if (numbersSeen == 2 || numbersSeen == 4) pieceIndex++;
      }
      if (numbersSeen != 4) return;
      break;
    } else if (chr() == ':') {
      pointer++;
      if (!chr()) return;
    } else if (chr()) return;
    address[pieceIndex++] = value;
  }
  if (compress !== null) {
    swaps = pieceIndex - compress;
    pieceIndex = 7;
    while (pieceIndex != 0 && swaps > 0) {
      swap = address[pieceIndex];
      address[pieceIndex--] = address[compress + swaps - 1];
      address[compress + --swaps] = swap;
    }
  } else if (pieceIndex != 8) return;
  return address;
};

var findLongestZeroSequence = function (ipv6) {
  var maxIndex = null;
  var maxLength = 1;
  var currStart = null;
  var currLength = 0;
  var index = 0;
  for (; index < 8; index++) {
    if (ipv6[index] !== 0) {
      if (currLength > maxLength) {
        maxIndex = currStart;
        maxLength = currLength;
      }
      currStart = null;
      currLength = 0;
    } else {
      if (currStart === null) currStart = index;
      ++currLength;
    }
  }
  if (currLength > maxLength) {
    maxIndex = currStart;
    maxLength = currLength;
  }
  return maxIndex;
};

// https://url.spec.whatwg.org/#host-serializing
var serializeHost = function (host) {
  var result, index, compress, ignore0;
  // ipv4
  if (typeof host == 'number') {
    result = [];
    for (index = 0; index < 4; index++) {
      unshift(result, host % 256);
      host = floor(host / 256);
    } return join(result, '.');
  // ipv6
  } else if (typeof host == 'object') {
    result = '';
    compress = findLongestZeroSequence(host);
    for (index = 0; index < 8; index++) {
      if (ignore0 && host[index] === 0) continue;
      if (ignore0) ignore0 = false;
      if (compress === index) {
        result += index ? ':' : '::';
        ignore0 = true;
      } else {
        result += numberToString(host[index], 16);
        if (index < 7) result += ':';
      }
    }
    return '[' + result + ']';
  } return host;
};

var C0ControlPercentEncodeSet = {};
var fragmentPercentEncodeSet = assign({}, C0ControlPercentEncodeSet, {
  ' ': 1, '"': 1, '<': 1, '>': 1, '`': 1
});
var pathPercentEncodeSet = assign({}, fragmentPercentEncodeSet, {
  '#': 1, '?': 1, '{': 1, '}': 1
});
var userinfoPercentEncodeSet = assign({}, pathPercentEncodeSet, {
  '/': 1, ':': 1, ';': 1, '=': 1, '@': 1, '[': 1, '\\': 1, ']': 1, '^': 1, '|': 1
});

var percentEncode = function (chr, set) {
  var code = codeAt(chr, 0);
  return code > 0x20 && code < 0x7F && !hasOwn(set, chr) ? chr : encodeURIComponent(chr);
};

// https://url.spec.whatwg.org/#special-scheme
var specialSchemes = {
  ftp: 21,
  file: null,
  http: 80,
  https: 443,
  ws: 80,
  wss: 443
};

// https://url.spec.whatwg.org/#windows-drive-letter
var isWindowsDriveLetter = function (string, normalized) {
  var second;
  return string.length == 2 && exec(ALPHA, charAt(string, 0))
    && ((second = charAt(string, 1)) == ':' || (!normalized && second == '|'));
};

// https://url.spec.whatwg.org/#start-with-a-windows-drive-letter
var startsWithWindowsDriveLetter = function (string) {
  var third;
  return string.length > 1 && isWindowsDriveLetter(stringSlice(string, 0, 2)) && (
    string.length == 2 ||
    ((third = charAt(string, 2)) === '/' || third === '\\' || third === '?' || third === '#')
  );
};

// https://url.spec.whatwg.org/#single-dot-path-segment
var isSingleDot = function (segment) {
  return segment === '.' || toLowerCase(segment) === '%2e';
};

// https://url.spec.whatwg.org/#double-dot-path-segment
var isDoubleDot = function (segment) {
  segment = toLowerCase(segment);
  return segment === '..' || segment === '%2e.' || segment === '.%2e' || segment === '%2e%2e';
};

// States:
var SCHEME_START = {};
var SCHEME = {};
var NO_SCHEME = {};
var SPECIAL_RELATIVE_OR_AUTHORITY = {};
var PATH_OR_AUTHORITY = {};
var RELATIVE = {};
var RELATIVE_SLASH = {};
var SPECIAL_AUTHORITY_SLASHES = {};
var SPECIAL_AUTHORITY_IGNORE_SLASHES = {};
var AUTHORITY = {};
var HOST = {};
var HOSTNAME = {};
var PORT = {};
var FILE = {};
var FILE_SLASH = {};
var FILE_HOST = {};
var PATH_START = {};
var PATH = {};
var CANNOT_BE_A_BASE_URL_PATH = {};
var QUERY = {};
var FRAGMENT = {};

var URLState = function (url, isBase, base) {
  var urlString = $toString(url);
  var baseState, failure, searchParams;
  if (isBase) {
    failure = this.parse(urlString);
    if (failure) throw TypeError(failure);
    this.searchParams = null;
  } else {
    if (base !== undefined) baseState = new URLState(base, true);
    failure = this.parse(urlString, null, baseState);
    if (failure) throw TypeError(failure);
    searchParams = getInternalSearchParamsState(new URLSearchParams());
    searchParams.bindURL(this);
    this.searchParams = searchParams;
  }
};

URLState.prototype = {
  type: 'URL',
  // https://url.spec.whatwg.org/#url-parsing
  // eslint-disable-next-line max-statements -- TODO
  parse: function (input, stateOverride, base) {
    var url = this;
    var state = stateOverride || SCHEME_START;
    var pointer = 0;
    var buffer = '';
    var seenAt = false;
    var seenBracket = false;
    var seenPasswordToken = false;
    var codePoints, chr, bufferCodePoints, failure;

    input = $toString(input);

    if (!stateOverride) {
      url.scheme = '';
      url.username = '';
      url.password = '';
      url.host = null;
      url.port = null;
      url.path = [];
      url.query = null;
      url.fragment = null;
      url.cannotBeABaseURL = false;
      input = replace(input, LEADING_AND_TRAILING_C0_CONTROL_OR_SPACE, '');
    }

    input = replace(input, TAB_AND_NEW_LINE, '');

    codePoints = arrayFrom(input);

    while (pointer <= codePoints.length) {
      chr = codePoints[pointer];
      switch (state) {
        case SCHEME_START:
          if (chr && exec(ALPHA, chr)) {
            buffer += toLowerCase(chr);
            state = SCHEME;
          } else if (!stateOverride) {
            state = NO_SCHEME;
            continue;
          } else return INVALID_SCHEME;
          break;

        case SCHEME:
          if (chr && (exec(ALPHANUMERIC, chr) || chr == '+' || chr == '-' || chr == '.')) {
            buffer += toLowerCase(chr);
          } else if (chr == ':') {
            if (stateOverride && (
              (url.isSpecial() != hasOwn(specialSchemes, buffer)) ||
              (buffer == 'file' && (url.includesCredentials() || url.port !== null)) ||
              (url.scheme == 'file' && !url.host)
            )) return;
            url.scheme = buffer;
            if (stateOverride) {
              if (url.isSpecial() && specialSchemes[url.scheme] == url.port) url.port = null;
              return;
            }
            buffer = '';
            if (url.scheme == 'file') {
              state = FILE;
            } else if (url.isSpecial() && base && base.scheme == url.scheme) {
              state = SPECIAL_RELATIVE_OR_AUTHORITY;
            } else if (url.isSpecial()) {
              state = SPECIAL_AUTHORITY_SLASHES;
            } else if (codePoints[pointer + 1] == '/') {
              state = PATH_OR_AUTHORITY;
              pointer++;
            } else {
              url.cannotBeABaseURL = true;
              push(url.path, '');
              state = CANNOT_BE_A_BASE_URL_PATH;
            }
          } else if (!stateOverride) {
            buffer = '';
            state = NO_SCHEME;
            pointer = 0;
            continue;
          } else return INVALID_SCHEME;
          break;

        case NO_SCHEME:
          if (!base || (base.cannotBeABaseURL && chr != '#')) return INVALID_SCHEME;
          if (base.cannotBeABaseURL && chr == '#') {
            url.scheme = base.scheme;
            url.path = arraySlice(base.path);
            url.query = base.query;
            url.fragment = '';
            url.cannotBeABaseURL = true;
            state = FRAGMENT;
            break;
          }
          state = base.scheme == 'file' ? FILE : RELATIVE;
          continue;

        case SPECIAL_RELATIVE_OR_AUTHORITY:
          if (chr == '/' && codePoints[pointer + 1] == '/') {
            state = SPECIAL_AUTHORITY_IGNORE_SLASHES;
            pointer++;
          } else {
            state = RELATIVE;
            continue;
          } break;

        case PATH_OR_AUTHORITY:
          if (chr == '/') {
            state = AUTHORITY;
            break;
          } else {
            state = PATH;
            continue;
          }

        case RELATIVE:
          url.scheme = base.scheme;
          if (chr == EOF) {
            url.username = base.username;
            url.password = base.password;
            url.host = base.host;
            url.port = base.port;
            url.path = arraySlice(base.path);
            url.query = base.query;
          } else if (chr == '/' || (chr == '\\' && url.isSpecial())) {
            state = RELATIVE_SLASH;
          } else if (chr == '?') {
            url.username = base.username;
            url.password = base.password;
            url.host = base.host;
            url.port = base.port;
            url.path = arraySlice(base.path);
            url.query = '';
            state = QUERY;
          } else if (chr == '#') {
            url.username = base.username;
            url.password = base.password;
            url.host = base.host;
            url.port = base.port;
            url.path = arraySlice(base.path);
            url.query = base.query;
            url.fragment = '';
            state = FRAGMENT;
          } else {
            url.username = base.username;
            url.password = base.password;
            url.host = base.host;
            url.port = base.port;
            url.path = arraySlice(base.path);
            url.path.length--;
            state = PATH;
            continue;
          } break;

        case RELATIVE_SLASH:
          if (url.isSpecial() && (chr == '/' || chr == '\\')) {
            state = SPECIAL_AUTHORITY_IGNORE_SLASHES;
          } else if (chr == '/') {
            state = AUTHORITY;
          } else {
            url.username = base.username;
            url.password = base.password;
            url.host = base.host;
            url.port = base.port;
            state = PATH;
            continue;
          } break;

        case SPECIAL_AUTHORITY_SLASHES:
          state = SPECIAL_AUTHORITY_IGNORE_SLASHES;
          if (chr != '/' || charAt(buffer, pointer + 1) != '/') continue;
          pointer++;
          break;

        case SPECIAL_AUTHORITY_IGNORE_SLASHES:
          if (chr != '/' && chr != '\\') {
            state = AUTHORITY;
            continue;
          } break;

        case AUTHORITY:
          if (chr == '@') {
            if (seenAt) buffer = '%40' + buffer;
            seenAt = true;
            bufferCodePoints = arrayFrom(buffer);
            for (var i = 0; i < bufferCodePoints.length; i++) {
              var codePoint = bufferCodePoints[i];
              if (codePoint == ':' && !seenPasswordToken) {
                seenPasswordToken = true;
                continue;
              }
              var encodedCodePoints = percentEncode(codePoint, userinfoPercentEncodeSet);
              if (seenPasswordToken) url.password += encodedCodePoints;
              else url.username += encodedCodePoints;
            }
            buffer = '';
          } else if (
            chr == EOF || chr == '/' || chr == '?' || chr == '#' ||
            (chr == '\\' && url.isSpecial())
          ) {
            if (seenAt && buffer == '') return INVALID_AUTHORITY;
            pointer -= arrayFrom(buffer).length + 1;
            buffer = '';
            state = HOST;
          } else buffer += chr;
          break;

        case HOST:
        case HOSTNAME:
          if (stateOverride && url.scheme == 'file') {
            state = FILE_HOST;
            continue;
          } else if (chr == ':' && !seenBracket) {
            if (buffer == '') return INVALID_HOST;
            failure = url.parseHost(buffer);
            if (failure) return failure;
            buffer = '';
            state = PORT;
            if (stateOverride == HOSTNAME) return;
          } else if (
            chr == EOF || chr == '/' || chr == '?' || chr == '#' ||
            (chr == '\\' && url.isSpecial())
          ) {
            if (url.isSpecial() && buffer == '') return INVALID_HOST;
            if (stateOverride && buffer == '' && (url.includesCredentials() || url.port !== null)) return;
            failure = url.parseHost(buffer);
            if (failure) return failure;
            buffer = '';
            state = PATH_START;
            if (stateOverride) return;
            continue;
          } else {
            if (chr == '[') seenBracket = true;
            else if (chr == ']') seenBracket = false;
            buffer += chr;
          } break;

        case PORT:
          if (exec(DIGIT, chr)) {
            buffer += chr;
          } else if (
            chr == EOF || chr == '/' || chr == '?' || chr == '#' ||
            (chr == '\\' && url.isSpecial()) ||
            stateOverride
          ) {
            if (buffer != '') {
              var port = parseInt(buffer, 10);
              if (port > 0xFFFF) return INVALID_PORT;
              url.port = (url.isSpecial() && port === specialSchemes[url.scheme]) ? null : port;
              buffer = '';
            }
            if (stateOverride) return;
            state = PATH_START;
            continue;
          } else return INVALID_PORT;
          break;

        case FILE:
          url.scheme = 'file';
          if (chr == '/' || chr == '\\') state = FILE_SLASH;
          else if (base && base.scheme == 'file') {
            if (chr == EOF) {
              url.host = base.host;
              url.path = arraySlice(base.path);
              url.query = base.query;
            } else if (chr == '?') {
              url.host = base.host;
              url.path = arraySlice(base.path);
              url.query = '';
              state = QUERY;
            } else if (chr == '#') {
              url.host = base.host;
              url.path = arraySlice(base.path);
              url.query = base.query;
              url.fragment = '';
              state = FRAGMENT;
            } else {
              if (!startsWithWindowsDriveLetter(join(arraySlice(codePoints, pointer), ''))) {
                url.host = base.host;
                url.path = arraySlice(base.path);
                url.shortenPath();
              }
              state = PATH;
              continue;
            }
          } else {
            state = PATH;
            continue;
          } break;

        case FILE_SLASH:
          if (chr == '/' || chr == '\\') {
            state = FILE_HOST;
            break;
          }
          if (base && base.scheme == 'file' && !startsWithWindowsDriveLetter(join(arraySlice(codePoints, pointer), ''))) {
            if (isWindowsDriveLetter(base.path[0], true)) push(url.path, base.path[0]);
            else url.host = base.host;
          }
          state = PATH;
          continue;

        case FILE_HOST:
          if (chr == EOF || chr == '/' || chr == '\\' || chr == '?' || chr == '#') {
            if (!stateOverride && isWindowsDriveLetter(buffer)) {
              state = PATH;
            } else if (buffer == '') {
              url.host = '';
              if (stateOverride) return;
              state = PATH_START;
            } else {
              failure = url.parseHost(buffer);
              if (failure) return failure;
              if (url.host == 'localhost') url.host = '';
              if (stateOverride) return;
              buffer = '';
              state = PATH_START;
            } continue;
          } else buffer += chr;
          break;

        case PATH_START:
          if (url.isSpecial()) {
            state = PATH;
            if (chr != '/' && chr != '\\') continue;
          } else if (!stateOverride && chr == '?') {
            url.query = '';
            state = QUERY;
          } else if (!stateOverride && chr == '#') {
            url.fragment = '';
            state = FRAGMENT;
          } else if (chr != EOF) {
            state = PATH;
            if (chr != '/') continue;
          } break;

        case PATH:
          if (
            chr == EOF || chr == '/' ||
            (chr == '\\' && url.isSpecial()) ||
            (!stateOverride && (chr == '?' || chr == '#'))
          ) {
            if (isDoubleDot(buffer)) {
              url.shortenPath();
              if (chr != '/' && !(chr == '\\' && url.isSpecial())) {
                push(url.path, '');
              }
            } else if (isSingleDot(buffer)) {
              if (chr != '/' && !(chr == '\\' && url.isSpecial())) {
                push(url.path, '');
              }
            } else {
              if (url.scheme == 'file' && !url.path.length && isWindowsDriveLetter(buffer)) {
                if (url.host) url.host = '';
                buffer = charAt(buffer, 0) + ':'; // normalize windows drive letter
              }
              push(url.path, buffer);
            }
            buffer = '';
            if (url.scheme == 'file' && (chr == EOF || chr == '?' || chr == '#')) {
              while (url.path.length > 1 && url.path[0] === '') {
                shift(url.path);
              }
            }
            if (chr == '?') {
              url.query = '';
              state = QUERY;
            } else if (chr == '#') {
              url.fragment = '';
              state = FRAGMENT;
            }
          } else {
            buffer += percentEncode(chr, pathPercentEncodeSet);
          } break;

        case CANNOT_BE_A_BASE_URL_PATH:
          if (chr == '?') {
            url.query = '';
            state = QUERY;
          } else if (chr == '#') {
            url.fragment = '';
            state = FRAGMENT;
          } else if (chr != EOF) {
            url.path[0] += percentEncode(chr, C0ControlPercentEncodeSet);
          } break;

        case QUERY:
          if (!stateOverride && chr == '#') {
            url.fragment = '';
            state = FRAGMENT;
          } else if (chr != EOF) {
            if (chr == "'" && url.isSpecial()) url.query += '%27';
            else if (chr == '#') url.query += '%23';
            else url.query += percentEncode(chr, C0ControlPercentEncodeSet);
          } break;

        case FRAGMENT:
          if (chr != EOF) url.fragment += percentEncode(chr, fragmentPercentEncodeSet);
          break;
      }

      pointer++;
    }
  },
  // https://url.spec.whatwg.org/#host-parsing
  parseHost: function (input) {
    var result, codePoints, index;
    if (charAt(input, 0) == '[') {
      if (charAt(input, input.length - 1) != ']') return INVALID_HOST;
      result = parseIPv6(stringSlice(input, 1, -1));
      if (!result) return INVALID_HOST;
      this.host = result;
    // opaque host
    } else if (!this.isSpecial()) {
      if (exec(FORBIDDEN_HOST_CODE_POINT_EXCLUDING_PERCENT, input)) return INVALID_HOST;
      result = '';
      codePoints = arrayFrom(input);
      for (index = 0; index < codePoints.length; index++) {
        result += percentEncode(codePoints[index], C0ControlPercentEncodeSet);
      }
      this.host = result;
    } else {
      input = toASCII(input);
      if (exec(FORBIDDEN_HOST_CODE_POINT, input)) return INVALID_HOST;
      result = parseIPv4(input);
      if (result === null) return INVALID_HOST;
      this.host = result;
    }
  },
  // https://url.spec.whatwg.org/#cannot-have-a-username-password-port
  cannotHaveUsernamePasswordPort: function () {
    return !this.host || this.cannotBeABaseURL || this.scheme == 'file';
  },
  // https://url.spec.whatwg.org/#include-credentials
  includesCredentials: function () {
    return this.username != '' || this.password != '';
  },
  // https://url.spec.whatwg.org/#is-special
  isSpecial: function () {
    return hasOwn(specialSchemes, this.scheme);
  },
  // https://url.spec.whatwg.org/#shorten-a-urls-path
  shortenPath: function () {
    var path = this.path;
    var pathSize = path.length;
    if (pathSize && (this.scheme != 'file' || pathSize != 1 || !isWindowsDriveLetter(path[0], true))) {
      path.length--;
    }
  },
  // https://url.spec.whatwg.org/#concept-url-serializer
  serialize: function () {
    var url = this;
    var scheme = url.scheme;
    var username = url.username;
    var password = url.password;
    var host = url.host;
    var port = url.port;
    var path = url.path;
    var query = url.query;
    var fragment = url.fragment;
    var output = scheme + ':';
    if (host !== null) {
      output += '//';
      if (url.includesCredentials()) {
        output += username + (password ? ':' + password : '') + '@';
      }
      output += serializeHost(host);
      if (port !== null) output += ':' + port;
    } else if (scheme == 'file') output += '//';
    output += url.cannotBeABaseURL ? path[0] : path.length ? '/' + join(path, '/') : '';
    if (query !== null) output += '?' + query;
    if (fragment !== null) output += '#' + fragment;
    return output;
  },
  // https://url.spec.whatwg.org/#dom-url-href
  setHref: function (href) {
    var failure = this.parse(href);
    if (failure) throw TypeError(failure);
    this.searchParams.update();
  },
  // https://url.spec.whatwg.org/#dom-url-origin
  getOrigin: function () {
    var scheme = this.scheme;
    var port = this.port;
    if (scheme == 'blob') try {
      return new URLConstructor(scheme.path[0]).origin;
    } catch (error) {
      return 'null';
    }
    if (scheme == 'file' || !this.isSpecial()) return 'null';
    return scheme + '://' + serializeHost(this.host) + (port !== null ? ':' + port : '');
  },
  // https://url.spec.whatwg.org/#dom-url-protocol
  getProtocol: function () {
    return this.scheme + ':';
  },
  setProtocol: function (protocol) {
    this.parse($toString(protocol) + ':', SCHEME_START);
  },
  // https://url.spec.whatwg.org/#dom-url-username
  getUsername: function () {
    return this.username;
  },
  setUsername: function (username) {
    var codePoints = arrayFrom($toString(username));
    if (this.cannotHaveUsernamePasswordPort()) return;
    this.username = '';
    for (var i = 0; i < codePoints.length; i++) {
      this.username += percentEncode(codePoints[i], userinfoPercentEncodeSet);
    }
  },
  // https://url.spec.whatwg.org/#dom-url-password
  getPassword: function () {
    return this.password;
  },
  setPassword: function (password) {
    var codePoints = arrayFrom($toString(password));
    if (this.cannotHaveUsernamePasswordPort()) return;
    this.password = '';
    for (var i = 0; i < codePoints.length; i++) {
      this.password += percentEncode(codePoints[i], userinfoPercentEncodeSet);
    }
  },
  // https://url.spec.whatwg.org/#dom-url-host
  getHost: function () {
    var host = this.host;
    var port = this.port;
    return host === null ? ''
      : port === null ? serializeHost(host)
      : serializeHost(host) + ':' + port;
  },
  setHost: function (host) {
    if (this.cannotBeABaseURL) return;
    this.parse(host, HOST);
  },
  // https://url.spec.whatwg.org/#dom-url-hostname
  getHostname: function () {
    var host = this.host;
    return host === null ? '' : serializeHost(host);
  },
  setHostname: function (hostname) {
    if (this.cannotBeABaseURL) return;
    this.parse(hostname, HOSTNAME);
  },
  // https://url.spec.whatwg.org/#dom-url-port
  getPort: function () {
    var port = this.port;
    return port === null ? '' : $toString(port);
  },
  setPort: function (port) {
    if (this.cannotHaveUsernamePasswordPort()) return;
    port = $toString(port);
    if (port == '') this.port = null;
    else this.parse(port, PORT);
  },
  // https://url.spec.whatwg.org/#dom-url-pathname
  getPathname: function () {
    var path = this.path;
    return this.cannotBeABaseURL ? path[0] : path.length ? '/' + join(path, '/') : '';
  },
  setPathname: function (pathname) {
    if (this.cannotBeABaseURL) return;
    this.path = [];
    this.parse(pathname, PATH_START);
  },
  // https://url.spec.whatwg.org/#dom-url-search
  getSearch: function () {
    var query = this.query;
    return query ? '?' + query : '';
  },
  setSearch: function (search) {
    search = $toString(search);
    if (search == '') {
      this.query = null;
    } else {
      if ('?' == charAt(search, 0)) search = stringSlice(search, 1);
      this.query = '';
      this.parse(search, QUERY);
    }
    this.searchParams.update();
  },
  // https://url.spec.whatwg.org/#dom-url-searchparams
  getSearchParams: function () {
    return this.searchParams.facade;
  },
  // https://url.spec.whatwg.org/#dom-url-hash
  getHash: function () {
    var fragment = this.fragment;
    return fragment ? '#' + fragment : '';
  },
  setHash: function (hash) {
    hash = $toString(hash);
    if (hash == '') {
      this.fragment = null;
      return;
    }
    if ('#' == charAt(hash, 0)) hash = stringSlice(hash, 1);
    this.fragment = '';
    this.parse(hash, FRAGMENT);
  },
  update: function () {
    this.query = this.searchParams.serialize() || null;
  }
};

// `URL` constructor
// https://url.spec.whatwg.org/#url-class
var URLConstructor = function URL(url /* , base */) {
  var that = anInstance(this, URLPrototype);
  var base = validateArgumentsLength(arguments.length, 1) > 1 ? arguments[1] : undefined;
  var state = setInternalState(that, new URLState(url, false, base));
  if (!DESCRIPTORS) {
    that.href = state.serialize();
    that.origin = state.getOrigin();
    that.protocol = state.getProtocol();
    that.username = state.getUsername();
    that.password = state.getPassword();
    that.host = state.getHost();
    that.hostname = state.getHostname();
    that.port = state.getPort();
    that.pathname = state.getPathname();
    that.search = state.getSearch();
    that.searchParams = state.getSearchParams();
    that.hash = state.getHash();
  }
};

var URLPrototype = URLConstructor.prototype;

var accessorDescriptor = function (getter, setter) {
  return {
    get: function () {
      return getInternalURLState(this)[getter]();
    },
    set: setter && function (value) {
      return getInternalURLState(this)[setter](value);
    },
    configurable: true,
    enumerable: true
  };
};

if (DESCRIPTORS) {
  defineProperties(URLPrototype, {
    // `URL.prototype.href` accessors pair
    // https://url.spec.whatwg.org/#dom-url-href
    href: accessorDescriptor('serialize', 'setHref'),
    // `URL.prototype.origin` getter
    // https://url.spec.whatwg.org/#dom-url-origin
    origin: accessorDescriptor('getOrigin'),
    // `URL.prototype.protocol` accessors pair
    // https://url.spec.whatwg.org/#dom-url-protocol
    protocol: accessorDescriptor('getProtocol', 'setProtocol'),
    // `URL.prototype.username` accessors pair
    // https://url.spec.whatwg.org/#dom-url-username
    username: accessorDescriptor('getUsername', 'setUsername'),
    // `URL.prototype.password` accessors pair
    // https://url.spec.whatwg.org/#dom-url-password
    password: accessorDescriptor('getPassword', 'setPassword'),
    // `URL.prototype.host` accessors pair
    // https://url.spec.whatwg.org/#dom-url-host
    host: accessorDescriptor('getHost', 'setHost'),
    // `URL.prototype.hostname` accessors pair
    // https://url.spec.whatwg.org/#dom-url-hostname
    hostname: accessorDescriptor('getHostname', 'setHostname'),
    // `URL.prototype.port` accessors pair
    // https://url.spec.whatwg.org/#dom-url-port
    port: accessorDescriptor('getPort', 'setPort'),
    // `URL.prototype.pathname` accessors pair
    // https://url.spec.whatwg.org/#dom-url-pathname
    pathname: accessorDescriptor('getPathname', 'setPathname'),
    // `URL.prototype.search` accessors pair
    // https://url.spec.whatwg.org/#dom-url-search
    search: accessorDescriptor('getSearch', 'setSearch'),
    // `URL.prototype.searchParams` getter
    // https://url.spec.whatwg.org/#dom-url-searchparams
    searchParams: accessorDescriptor('getSearchParams'),
    // `URL.prototype.hash` accessors pair
    // https://url.spec.whatwg.org/#dom-url-hash
    hash: accessorDescriptor('getHash', 'setHash')
  });
}

// `URL.prototype.toJSON` method
// https://url.spec.whatwg.org/#dom-url-tojson
redefine(URLPrototype, 'toJSON', function toJSON() {
  return getInternalURLState(this).serialize();
}, { enumerable: true });

// `URL.prototype.toString` method
// https://url.spec.whatwg.org/#URL-stringification-behavior
redefine(URLPrototype, 'toString', function toString() {
  return getInternalURLState(this).serialize();
}, { enumerable: true });

if (NativeURL) {
  var nativeCreateObjectURL = NativeURL.createObjectURL;
  var nativeRevokeObjectURL = NativeURL.revokeObjectURL;
  // `URL.createObjectURL` method
  // https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL
  if (nativeCreateObjectURL) redefine(URLConstructor, 'createObjectURL', bind(nativeCreateObjectURL, NativeURL));
  // `URL.revokeObjectURL` method
  // https://developer.mozilla.org/en-US/docs/Web/API/URL/revokeObjectURL
  if (nativeRevokeObjectURL) redefine(URLConstructor, 'revokeObjectURL', bind(nativeRevokeObjectURL, NativeURL));
}

setToStringTag(URLConstructor, 'URL');

$({ global: true, forced: !USE_NATIVE_URL, sham: !DESCRIPTORS }, {
  URL: URLConstructor
});


/***/ }),

/***/ "./node_modules/core-js/modules/web.url.to-json.js":
/*!*********************************************************!*\
  !*** ./node_modules/core-js/modules/web.url.to-json.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var $ = __webpack_require__(/*! ../internals/export */ "./node_modules/core-js/internals/export.js");
var call = __webpack_require__(/*! ../internals/function-call */ "./node_modules/core-js/internals/function-call.js");

// `URL.prototype.toJSON` method
// https://url.spec.whatwg.org/#dom-url-tojson
$({ target: 'URL', proto: true, enumerable: true }, {
  toJSON: function toJSON() {
    return call(URL.prototype.toString, this);
  }
});


/***/ }),

/***/ "./node_modules/dragselect/dist/DragSelect.js":
/*!****************************************************!*\
  !*** ./node_modules/dragselect/dist/DragSelect.js ***!
  \****************************************************/
/***/ (function(module) {

/***

 ~~~ Version 2.3.1 ~~~

 ******************************************

    ____                   _____      __          __ 
   / __ \_________ _____ _/ ___/___  / /__  _____/ /_
  / / / / ___/ __ `/ __ `/\__ \/ _ \/ / _ \/ ___/ __/
 / /_/ / /  / /_/ / /_/ /___/ /  __/ /  __/ /__/ /_  
/_____/_/   \__,_/\__, //____/\___/_/\___/\___/\__/  
               /____/                              

 ******************************************
 
 {*} {*} STAR THIS PLUGIN ON GITHUB {*} {*}

 https://github.com/ThibaultJanBeyer/DragSelect
 Please give it a like, this is what makes me happy :-)
 Thank You

 {*} {*} STAR THIS PLUGIN ON GITHUB {*} {*}

 ******************************************
 ********* The MIT License (MIT) **********
 ******************************************
 Created 2017 by ThibaultJanBeyer
 web: http://www.thibaultjanbeyer.com/
 github: https://github.com/ThibaultJanBeyer/DragSelect

*/
(function (global, factory) {
   true ? module.exports = factory() :
  0;
}(this, (function () { 'use strict';

  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }

    return obj;
  }

  function ownKeys(object, enumerableOnly) {
    var keys = Object.keys(object);

    if (Object.getOwnPropertySymbols) {
      var symbols = Object.getOwnPropertySymbols(object);
      if (enumerableOnly) symbols = symbols.filter(function (sym) {
        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
      });
      keys.push.apply(keys, symbols);
    }

    return keys;
  }

  function _objectSpread2(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i] != null ? arguments[i] : {};

      if (i % 2) {
        ownKeys(Object(source), true).forEach(function (key) {
          _defineProperty(target, key, source[key]);
        });
      } else if (Object.getOwnPropertyDescriptors) {
        Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
      } else {
        ownKeys(Object(source)).forEach(function (key) {
          Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
        });
      }
    }

    return target;
  }

  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function");
    }

    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        writable: true,
        configurable: true
      }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }

  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }

  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };

    return _setPrototypeOf(o, p);
  }

  function _isNativeReflectConstruct() {
    if (typeof Reflect === "undefined" || !Reflect.construct) return false;
    if (Reflect.construct.sham) return false;
    if (typeof Proxy === "function") return true;

    try {
      Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));
      return true;
    } catch (e) {
      return false;
    }
  }

  function _construct(Parent, args, Class) {
    if (_isNativeReflectConstruct()) {
      _construct = Reflect.construct;
    } else {
      _construct = function _construct(Parent, args, Class) {
        var a = [null];
        a.push.apply(a, args);
        var Constructor = Function.bind.apply(Parent, a);
        var instance = new Constructor();
        if (Class) _setPrototypeOf(instance, Class.prototype);
        return instance;
      };
    }

    return _construct.apply(null, arguments);
  }

  function _isNativeFunction(fn) {
    return Function.toString.call(fn).indexOf("[native code]") !== -1;
  }

  function _wrapNativeSuper(Class) {
    var _cache = typeof Map === "function" ? new Map() : undefined;

    _wrapNativeSuper = function _wrapNativeSuper(Class) {
      if (Class === null || !_isNativeFunction(Class)) return Class;

      if (typeof Class !== "function") {
        throw new TypeError("Super expression must either be null or a function");
      }

      if (typeof _cache !== "undefined") {
        if (_cache.has(Class)) return _cache.get(Class);

        _cache.set(Class, Wrapper);
      }

      function Wrapper() {
        return _construct(Class, arguments, _getPrototypeOf(this).constructor);
      }

      Wrapper.prototype = Object.create(Class.prototype, {
        constructor: {
          value: Wrapper,
          enumerable: false,
          writable: true,
          configurable: true
        }
      });
      return _setPrototypeOf(Wrapper, Class);
    };

    return _wrapNativeSuper(Class);
  }

  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }

    return self;
  }

  function _possibleConstructorReturn(self, call) {
    if (call && (typeof call === "object" || typeof call === "function")) {
      return call;
    }

    return _assertThisInitialized(self);
  }

  function _createSuper(Derived) {
    var hasNativeReflectConstruct = _isNativeReflectConstruct();

    return function _createSuperInternal() {
      var Super = _getPrototypeOf(Derived),
          result;

      if (hasNativeReflectConstruct) {
        var NewTarget = _getPrototypeOf(this).constructor;

        result = Reflect.construct(Super, arguments, NewTarget);
      } else {
        result = Super.apply(this, arguments);
      }

      return _possibleConstructorReturn(this, result);
    };
  }

  function _superPropBase(object, property) {
    while (!Object.prototype.hasOwnProperty.call(object, property)) {
      object = _getPrototypeOf(object);
      if (object === null) break;
    }

    return object;
  }

  function _get(target, property, receiver) {
    if (typeof Reflect !== "undefined" && Reflect.get) {
      _get = Reflect.get;
    } else {
      _get = function _get(target, property, receiver) {
        var base = _superPropBase(target, property);

        if (!base) return;
        var desc = Object.getOwnPropertyDescriptor(base, property);

        if (desc.get) {
          return desc.get.call(receiver);
        }

        return desc.value;
      };
    }

    return _get(target, property, receiver || target);
  }

  function _slicedToArray(arr, i) {
    return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
  }

  function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
  }

  function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) return _arrayLikeToArray(arr);
  }

  function _arrayWithHoles(arr) {
    if (Array.isArray(arr)) return arr;
  }

  function _iterableToArray(iter) {
    if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter);
  }

  function _iterableToArrayLimit(arr, i) {
    if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return;
    var _arr = [];
    var _n = true;
    var _d = false;
    var _e = undefined;

    try {
      for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
        _arr.push(_s.value);

        if (i && _arr.length === i) break;
      }
    } catch (err) {
      _d = true;
      _e = err;
    } finally {
      try {
        if (!_n && _i["return"] != null) _i["return"]();
      } finally {
        if (_d) throw _e;
      }
    }

    return _arr;
  }

  function _unsupportedIterableToArray(o, minLen) {
    if (!o) return;
    if (typeof o === "string") return _arrayLikeToArray(o, minLen);
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === "Object" && o.constructor) n = o.constructor.name;
    if (n === "Map" || n === "Set") return Array.from(o);
    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
  }

  function _arrayLikeToArray(arr, len) {
    if (len == null || len > arr.length) len = arr.length;

    for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

    return arr2;
  }

  function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
  }

  function _nonIterableRest() {
    throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
  }

  /**
   * The Settings to be passed to the Class
   * @typedef {Object} Settings
   * @property {HTMLElement|SVGElement|HTMLDocument} [area=document] area in which you can drag. If not provided it will be the whole document
   * @property {DSInputElements} [selectables=[]] the elements that can be selected
   * @property {number} [autoScrollSpeed=5] Speed in which the area scrolls while selecting (if available). Unit is pixel per movement.
   * @property {Vect2} [overflowTolerance={x:25,y:25}] Tolerance for autoScroll (how close one has to be near an edges for autoScroll to start)
   * @property {number} [zoom=1] Zoom scale factor (in case of using CSS style transform: scale() which messes with real positions). Unit scale zoom.
   * @property {boolean} [customStyles=false] if set to true, no styles (except for position absolute) will be applied by default
   * @property {boolean} [multiSelectMode=false] Add newly selected elements to the selection instead of replacing them
   * @property {boolean} [multiSelectToggling=true] Whether or not to toggle already active elements while multi-selecting
   * @property {DSMultiSelectKeys} [multiSelectKeys=['Control', 'Shift', 'Meta']] Keys that allows switching to the multi-select mode (see the multiSelectMode option). Any key value is possible ([see MDN docs](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key)). Note that the best support is given for <kbd>Control</kbd>, <kbd>Shift</kbd> and <kbd>Meta</kbd>. Provide an empty array `[]` if you want to turn off the functionality.
   * @property {HTMLElement} [selector=HTMLElement] the square that will draw the selection
   * @property {boolean} [draggability=true] When a user is dragging on an already selected element, the selection is dragged.
   * @property {boolean} [immediateDrag=true] Whether an element is draggable from the start or needs to be selected first
   * @property {boolean} [keyboardDrag=true] Whether or not the user can drag with the keyboard (we don't recommend disabling it)
   * @property {DSDragKeys} [dragKeys={up:['ArrowUp'],down:['ArrowDown'],left:['ArrowLeft'],righ:['ArrowRight']}] The keys available to drag element using the keyboard.
   * @property {number} [keyboardDragSpeed=10] The speed at which elements are dragged using the keyboard. In pixels per keydown.
   * @property {boolean} [useTransform=true] Whether to use hardware accelerated css transforms when dragging or top/left instead
   * @property {string} [hoverClass=ds-hover] the class assigned to the mouse hovered items
   * @property {string} [selectableClass=ds-selectable] the class assigned to the elements that can be selected
   * @property {string} [selectedClass=ds-selected] the class assigned to the selected items
   * @property {string} [selectorClass=ds-selector] the class assigned to the square selector helper
   * @property {string} [selectorAreaClass=ds-selector-area] the class assigned to the square in which the selector resides. By default it's invisible
   * @property {DSCallback} [callback] Deprecated: please use DragSelect.subscribe('callback', callback) instead
   * @property {DSCallback} [onDragMove] Deprecated: please use DragSelect.subscribe('onDragMove', onDragMove) instead
   * @property {DSCallback} [onDragStartBegin] Deprecated: please use DragSelect.subscribe('onDragStartBegin', onDragStartBegin) instead
   * @property {DSCallback} [onDragStart] Deprecated: please use DragSelect.subscribe('onDragStart', onDragStart) instead
   * @property {DSCallback} [onElementSelect] Deprecated: please use DragSelect.subscribe('onElementSelect', onElementSelect) instead
   * @property {DSCallback} [onElementUnselect] Deprecated: please use DragSelect.subscribe('onElementUnselect', onElementUnselect) instead
   */

  /**
   * The Object that is passed back to any callback method
   * @typedef {Object} CallbackObject
   * @property {Array<HTMLElement|SVGElement|any>} [items] The items currently selected
   * @property {MouseEvent|TouchEvent|KeyboardEvent|Event} [event] The respective event object
   * @property {HTMLElement|SVGElement|any} [item] The single item currently interacted with
   * @property {boolean} [isDragging] Whether the interaction is a drag or a select
   * @property {boolean} [isDraggingKeyboard] Whether or not the drag interaction is via keyboard
   * @property {string} [key] Pressed key (lowercase)
   * @property {Array.<'top'|'bottom'|'left'|'right'|undefined>} [scroll_directions]
   * @property {number} [scroll_multiplier]
   */

  /**
   * @typedef {function} DSCallback
   * @param {CallbackObject} data
   */

  /** @typedef {{x: number, y: number}} Vect2 */

  /** @typedef {{x:number,y:number,w:number,h:number,r:number,b:number}} DSElementPos */

  /** @typedef {Array.<'top'|'bottom'|'left'|'right'|undefined>} DSEdges */

  /** @typedef {HTMLElement|SVGElement|HTMLDocument} DSArea area within which you can drag */

  /** @typedef {HTMLElement} DSSelectorArea area in which you can drag */

  /** @typedef {Array.<HTMLElement|SVGElement> | HTMLElement | SVGElement} DSInputElements the elements that can be selected */

  /** @typedef {Array.<HTMLElement|SVGElement>} DSElements the elements that can be selected */

  /** @typedef {HTMLElement|SVGElement} DSElement a single element that can be selected */

  /** @typedef {MouseEvent|TouchEvent} DSEvent en event from a touch or mouse interaction */

  /** @typedef {Array.<'Shift'|'Control'|'Meta'|string>} DSMultiSelectKeys An array of keys that allows switching to the multi-select mode */

  /** @typedef {'dragmove'|'autoscroll'|'dragstart'|'elementselect'|'elementunselect'|'callback'} DSEventNames */

  /** @typedef {'Interaction:init'|'Interaction:start'|'Interaction:end'|'Interaction:update'|'Area:modified'|'Area:scroll'|'PointerStore:updated'|'Selected:added'|'Selected:removed'|'Selectable:click'|'Selectable:pointer'|'KeyStore:down'|'KeyStore:up'} DSInternalEventNames */

  /** @typedef {'Interaction:init:pre'|'Interaction:start:pre'|'Interaction:end:pre'|'Interaction:update:pre'|'Area:modified:pre'|'Area:scroll:pre'|'PointerStore:updated:pre'|'Selected:added:pre'|'Selected:removed:pre'|'Selectable:click:pre'|'Selectable:pointer:pre'|'KeyStore:down:pre'|'KeyStore:up:pre'} DSInternalEventNamesPre */

  /** @typedef {DSEventNames|DSInternalEventNames|DSInternalEventNamesPre} DSCallbackNames the name of the callback */

  /** @typedef {{top:number,left:number,bottom:number,right:number,width:number,height:number}} DSBoundingRect */

  /** @typedef {{up:string[],down:string[],left:string[],right:string[]}} DSDragKeys */

  /**
   * @callback DSModificationCallback
   * @param {*} event
   */

  // @ts-check
  /**
   * @param {Vect2} v1
   * @param {'+'|'-'|'*'|'/'} operator
   * @param {Vect2} v2
   * @return {Vect2}
   */

  var calc = function calc(_ref, operator, _ref2) {
    var x1 = _ref.x,
        y1 = _ref.y;
    var x2 = _ref2.x,
        y2 = _ref2.y;
    var calculations = {
      '+': {
        x: x1 + x2,
        y: y1 + y2
      },
      '-': {
        x: x1 - x2,
        y: y1 - y2
      },
      '*': {
        x: x1 * x2,
        y: y1 * y2
      },
      '/': {
        x: x1 / x2,
        y: y1 / y2
      }
    };
    return calculations[operator];
  };
  /**
   * @param {{left:number,top:number}} rect
   * @returns {Vect2}
   */

  var rect2vect = function rect2vect(rect) {
    return {
      x: rect.left,
      y: rect.top
    };
  };
  /**
   * @param {Vect2} vect
   * @param {number} dimension
   * @returns {DSBoundingRect}
   */

  var vect2rect = function vect2rect(vect) {
    var dimension = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
    return {
      left: vect.x,
      top: vect.y,
      right: vect.x,
      bottom: vect.y,
      width: dimension,
      height: dimension
    };
  };
  /**
   * @param {number} n
   * @returns {Vect2}
   */

  var num2vect = function num2vect(n) {
    return {
      x: n,
      y: n
    };
  };

  // @ts-check
  /**
   * Adds event-listeners to the selectorArea
   * @param {DSArea[]} nodes
   * @param {DSModificationCallback} callback
   * @param {MutationObserver} modificationObserver
   */

  var addModificationObservers = (function (nodes, callback, modificationObserver) {
    window.addEventListener('resize', callback);
    window.addEventListener('scroll', callback);
    nodes.forEach(function (el, i) {
      modificationObserver.observe(el, {
        childList: i !== 0,
        attributes: true
      });
    });
  });

  // @ts-check
  /**
   * Checks whether the area can scroll or not
   * @param {DSArea} area
   * @return {boolean} scroll X/Y
   */

  var canScroll = (function (area) {
    var scroll = getCurrentScroll(area);
    if (scroll.x || scroll.y) return true;

    if (area instanceof HTMLDocument) {
      if (area.body) return !!(area.body.scrollTop = 1);else return !!(area.documentElement.scrollTop = 1);
    }

    return !!(area.scrollTop = 1);
  });

  // @ts-check
  /**
   * Creates the SelectorArea
   * @param {string} selectorAreaClass
   * @return {HTMLDivElement}
   */

  var createSelectorAreaElement = (function (selectorAreaClass) {
    var node = document.createElement('div');
    node.style.position = 'fixed';
    node.style.overflow = 'hidden';
    node.style.pointerEvents = 'none';
    node.style.zIndex = '999999999999999999';
    node.classList.add(selectorAreaClass);
    return node;
  });

  // @ts-check
  /**
   * Create the selector node
   * @param {boolean} customStyles
   * @return {HTMLElement}
   */

  var createSelectorElement = (function (customStyles) {
    var selector = document.createElement('div');
    selector.style.position = 'absolute';

    if (!customStyles) {
      selector.style.background = 'rgba(0, 0, 255, 0.1)';
      selector.style.border = '1px solid rgba(0, 0, 255, 0.45)';
      selector.style.display = 'none';
      selector.style.pointerEvents = 'none'; // fix for issue #8 (ie11+)
    }

    return selector;
  });

  // @ts-check
  /**
   * Returns a function, that, as long as it continues to be invoked, will not
   * be triggered. The function will be called after it stops being called for
   * `wait` milliseconds. All credits to [Trey Huffine]{@link https://levelup.gitconnected.com/debounce-in-javascript-improve-your-applications-performance-5b01855e086}
   * @param {*} func
   * @param {number} wait
   * @returns {DSModificationCallback}
   */

  var debounce = (function (func, wait) {
    var timeout; // This is the function that is returned and will be executed many times
    // We spread (...args) to capture any number of parameters we want to pass

    return function () {
      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
        args[_key] = arguments[_key];
      }

      // The callback function to be executed after
      // the debounce time has elapsed
      var later = function later() {
        // null timeout to indicate the debounce ended
        timeout = null; // Execute the callback

        func.apply(void 0, args);
      }; // This will reset the waiting every function execution.
      // This is the step that prevents the function from
      // being executed because it will never reach the
      // inside of the previous setTimeout


      clearTimeout(timeout); // Restart the debounce waiting period.
      // setTimeout returns a truthy value (it differs in web vs Node)

      timeout = setTimeout(later, wait);
    };
  });

  // @ts-check
  var documentScroll = (function () {
    var _document$body, _document$documentEle, _document$body2, _document$documentEle2;

    return {
      y: ((_document$body = document.body) === null || _document$body === void 0 ? void 0 : _document$body.scrollTop) || ((_document$documentEle = document.documentElement) === null || _document$documentEle === void 0 ? void 0 : _document$documentEle.scrollTop) || 0,
      x: ((_document$body2 = document.body) === null || _document$body2 === void 0 ? void 0 : _document$body2.scrollLeft) || ((_document$documentEle2 = document.documentElement) === null || _document$documentEle2 === void 0 ? void 0 : _document$documentEle2.scrollLeft) || 0
    };
  });

  // @ts-check
  /**
   * Returns the top/left/bottom/right/width/height
   * values of an area. If area is document then everything
   * except the sizes will be nulled.
   * @param {DSArea} area
   * @param {number} zoom
   * @returns {DSBoundingRect}
   */

  var getAreaRect = (function (area, zoom) {
    if (area instanceof Document) return {
      top: 0,
      left: 0,
      bottom: 0,
      right: 0,
      width: window.innerWidth,
      height: window.innerHeight
    };
    var rect = area.getBoundingClientRect();
    return {
      top: rect.top,
      left: rect.left,
      bottom: rect.bottom,
      right: rect.right,
      width: (area.clientWidth || rect.width) * zoom,
      height: (area.clientHeight || rect.height) * zoom
    };
  });

  // @ts-check
  /**
   * @param {DSArea} [area]
   * @return {Vect2} scroll X/Y
   */

  var getCurrentScroll = (function (area) {
    if (!area || area instanceof Document) return documentScroll();
    return {
      x: area.scrollLeft >= 0 ? area.scrollLeft : documentScroll().x,
      y: area.scrollTop >= 0 ? area.scrollTop : documentScroll().y
    };
  });

  // @ts-check
  /**
   * Returns the edges that an element is overflowing
   * @param {Object} p
   * @param {DSBoundingRect} p.elementRect
   * @param {DSBoundingRect} p.containerRect
   * @param {Vect2} [p.tolerance]
   * @returns {DSEdges}
   */

  var getOverflowEdges = (function (_ref) {
    var elementRect = _ref.elementRect,
        containerRect = _ref.containerRect,
        _ref$tolerance = _ref.tolerance,
        tolerance = _ref$tolerance === void 0 ? {
      x: 0,
      y: 0
    } : _ref$tolerance;
    var edges = [];
    if (elementRect.top - tolerance.y < containerRect.top) edges.push('top');
    if (elementRect.left - tolerance.x < containerRect.left) edges.push('left');
    if (elementRect.bottom + tolerance.y > containerRect.bottom) edges.push('bottom');
    if (elementRect.right + tolerance.y > containerRect.right) edges.push('right');
    return (
      /** @type {DSEdges} */
      edges
    );
  });

  // @ts-check
  /**
   * Returns cursor x, y position based on event object
   * @param {Object} p
   * @param {MouseEvent|Touch} p.event
   * @return {Vect2} cursor X/Y position
   */

  var getPointerPos = (function (_ref) {
    var event = _ref.event;
    return {
      x: event.clientX,
      y: event.clientY
    };
  });

  // @ts-check
  /**
   * Reliably returns the exact x,y,w,h positions of the selector element
   * @param {{ scrollAmount:Vect2, initialPointerPos:Vect2, pointerPos:Vect2 }} p
   * @returns {{left:number,top:number,width:number,height:number}}
   */

  var getSelectorPosition = (function (_ref) {
    var scrollAmount = _ref.scrollAmount,
        initialPointerPos = _ref.initialPointerPos,
        pointerPos = _ref.pointerPos;

    /** check for direction
     *
     * This is quite complicated, so also quite complicated to explain. Lemme’ try:
     *
     * Problem #1:
     * Sadly in HTML we can not have negative sizes.
     * so if we want to scale our element 10px to the right then it is easy,
     * we just have to add +10px to the width. But if we want to scale the element
     * -10px to the left then things become more complicated, we have to move
     * the element -10px to the left on the x axis and also scale the element
     * by +10px width to fake a negative sizing.
     *
     * One solution to this problem is using css-transforms scale() with
     * transform-origin of top left. BUT we can’t use this since it will size
     * everything, then when your element has a border for example, the border will
     * get inanely huge. Also transforms are not widely supported in IE.
     *
     * Example #1:
     * Unfortunately, things get even more complicated when we are inside a scroll-able
     * DIV. Then, let’s say we scroll to the right by 10px and move the cursor right by 5px in our
     * checks we have to subtract 10px from the initialcursor position in our check
     * (since the initial position is moved to the left by 10px) so in our example:
     * 1. pointerPos.x (5) > initialPointerPos.x (0) - scrollAmount.x (10) === 5 > -10 === true
     * then set the x position to the cursors start position
     * selectorPos.x = initialPointerPos.x (0) - scrollAmount.x (10) === 10 // 2.
     * then we can calculate the elements width, which is
     * the new cursor position minus the initial one plus the scroll amount, so in our example:
     * 3. selectorPos.w = pointerPos.x (5) - initialPointerPos.x (0) + scrollAmount.x (10) === 15;
     *
     * let’s say after that movement we now scroll 20px to the left and move our cursor by 30px to the left:
     * 1b. pointerPos.x (-30) > initialPointerPos.x (0) - scrollAmount.x (-20) === -30 < --20 === -30 < +20 === false;
     * 2b. selectorPos.x = pointerPos.x (-30) === -30; move left position to cursor (for more info see Problem #1)
     * 3b. selectorPos.w = initialPointerPos.x (0) - pointerPos.x (-30) - scrollAmount.x (-20) === 0--30--20 === 0+30+20 === 50;  // scale width to original left position (for more info see Problem #1)
     *
     * same thing has to be done for top/bottom
     *
     * I hope that makes sense. Try stuff out and play around with variables to get a hang of it.
     */
    var selectorPos = {}; // right

    if (pointerPos.x > initialPointerPos.x - scrollAmount.x) {
      // 1.
      selectorPos.left = initialPointerPos.x - scrollAmount.x; // 2.

      selectorPos.width = pointerPos.x - initialPointerPos.x + scrollAmount.x; // 3.
      // left
    } else {
      // 1b.
      selectorPos.left = pointerPos.x; // 2b.

      selectorPos.width = initialPointerPos.x - pointerPos.x - scrollAmount.x; // 3b.
    } // bottom


    if (pointerPos.y > initialPointerPos.y - scrollAmount.y) {
      selectorPos.top = initialPointerPos.y - scrollAmount.y;
      selectorPos.height = pointerPos.y - initialPointerPos.y + scrollAmount.y; // top
    } else {
      selectorPos.top = pointerPos.y;
      selectorPos.height = initialPointerPos.y - pointerPos.y - scrollAmount.y;
    }

    return selectorPos;
  });

  // @ts-check
  /**
   * @param {DSElement} element
   * @return {Vect2}
   */

  var getComputedTranslatePositions = function getComputedTranslatePositions(element) {
    var position = {
      x: 0,
      y: 0
    };
    var computed = window.getComputedStyle(element);
    if (!computed.transform || computed.transform === 'none') return position;

    if (computed.transform.indexOf('3d') >= 0) {
      var match = computed.transform.trim().match(/matrix3d\((.*?)\)/);

      if (match && match.length) {
        var _match$;

        var values = (_match$ = match[1]) === null || _match$ === void 0 ? void 0 : _match$.split(',');
        position.x = parseInt(values[12]) || 0;
        position.y = parseInt(values[13]) || 0;
      }

      return position;
    } else {
      var _match = computed.transform.trim().match(/matrix\((.*?)\)/);

      if (_match && _match.length) {
        var _match$2;

        var _values = (_match$2 = _match[1]) === null || _match$2 === void 0 ? void 0 : _match$2.split(',');

        position.x = parseInt(_values[4]) || 0;
        position.y = parseInt(_values[5]) || 0;
      }

      return position;
    }
  };
  /**
   * @param {DSElement} element
   * @return {Vect2}
   */


  var getTranslatedPositions = function getTranslatedPositions(element) {
    var transform = element.style.transform;
    if (!transform || transform.indexOf('translate') < 0) return getComputedTranslatePositions(element);
    var position = {
      x: 0,
      y: 0
    };
    var match = transform.trim().match(/translate[3dD]*?\(.*?\)/);

    if (match) {
      var _match$3;

      var split = (_match$3 = match[0]) === null || _match$3 === void 0 ? void 0 : _match$3.split('(');

      if (split) {
        var _split$;

        var values = (_split$ = split[1]) === null || _split$ === void 0 ? void 0 : _split$.split(',');
        position.x = parseInt(values[0]) || 0;
        position.y = parseInt(values[1]) || 0;
      }
    }

    if (!position.x && !position.x) return getComputedTranslatePositions(element);
    return position;
  };
  /**
   * @param {DSElement} element
   * @return {Vect2}
   */


  var getTopLeftPosition = function getTopLeftPosition(element) {
    var style = element.style;
    var position = {
      x: parseInt(style.left) || 0,
      y: parseInt(style.top) || 0
    }; // initial positions

    if (!position.x && !position.x) {
      var computed = window.getComputedStyle(element);
      return {
        x: parseInt(computed.left) || 0,
        y: parseInt(computed.top) || 0
      };
    }

    return position;
  };
  /**
   * Returns the X and Y coordinates based on styles
   * Can handle translate and top/left
   * @param {DSElement} element
   * @param {boolean} [useTranslate]
   * @return {Vect2}
   */


  var getStylePosition = (function (element, useTranslate) {
    if (useTranslate) return getTranslatedPositions(element);else return getTopLeftPosition(element);
  });

  // @ts-check
  /**
   * pushes element back the overflow amount
   * (top - top gives overflow, then new position pushed back by overflow)
   * @param {Object} p
   * @param {DSElement} p.element
   * @param {DSEdges} p.edges
   * @param {DSBoundingRect} p.elementRect
   * @param {DSBoundingRect} p.containerRect
   * @param {Vect2} p.elementPos
   * @param {boolean} p.useTransform
   */

  var handleElementOverflow = (function (_ref) {
    var element = _ref.element,
        edges = _ref.edges,
        elementRect = _ref.elementRect,
        containerRect = _ref.containerRect,
        elementPos = _ref.elementPos,
        useTransform = _ref.useTransform;

    if (edges.includes('top')) {
      setStylePosition(element, {
        y: elementPos.y + containerRect.top - elementRect.top,
        x: elementPos.x
      }, useTransform);
    }

    if (edges.includes('left')) {
      setStylePosition(element, {
        y: elementPos.y,
        x: elementPos.x + containerRect.left - elementRect.left
      }, useTransform);
    }

    if (edges.includes('bottom')) {
      setStylePosition(element, {
        y: elementPos.y + containerRect.bottom - elementRect.bottom,
        x: elementPos.x
      }, useTransform);
    }

    if (edges.includes('right')) {
      setStylePosition(element, {
        y: elementPos.y,
        x: elementPos.x + containerRect.right - elementRect.right
      }, useTransform);
    }
  });

  // @ts-check
  /**
   * Fix: some elements have to have a special position attribute for calculations
   * @param {Object} p
   * @param {CSSStyleDeclaration} p.computedStyle
   * @param {DSArea} p.node
   */

  var handleElementPositionAttribute = (function (_ref) {
    var computedStyle = _ref.computedStyle,
        node = _ref.node;
    var position = computedStyle.position;
    var isPositioned = position === 'absolute' || position === 'relative' || position === 'fixed';
    if (!(node instanceof HTMLDocument) && !isPositioned) node.style.position = 'relative';
  });

  // @ts-check
  /**
   * @typedef {function} ScrollCallback
   * @property {Array.<'top'|'bottom'|'left'|'right'|undefined>} directions
   * @property {number} multiplier
   */

  /**
   * @param {Object} p
   * @param {string} p.key the keyboard key that was pressed
   * @param {boolean} p.shiftKey
   * @param {boolean} p.canScroll
   * @param {number} p.keyboardDragSpeed
   * @param {number} p.zoom
   * @param {ScrollCallback} p.scrollCallback
   * @param {Vect2} p.scrollDiff
   * @param {DSDragKeys} p.dragKeys
   * @returns {Vect2}
   */

  var handleKeyboardDragPosDifference = (function (_ref) {
    var shiftKey = _ref.shiftKey,
        keyboardDragSpeed = _ref.keyboardDragSpeed,
        zoom = _ref.zoom,
        key = _ref.key,
        dragKeys = _ref.dragKeys,
        scrollDiff = _ref.scrollDiff,
        canScroll = _ref.canScroll,
        scrollCallback = _ref.scrollCallback;
    var posDirection = {
      x: 0,
      y: 0
    };
    var increase = shiftKey ? keyboardDragSpeed * 4 * zoom : keyboardDragSpeed * zoom;

    if (dragKeys.left.includes(key)) {
      posDirection.x = scrollDiff.x || -increase;
      if (!shiftKey && !scrollDiff.x && canScroll) scrollCallback(['left'], keyboardDragSpeed);
    }

    if (dragKeys.right.includes(key)) {
      posDirection.x = scrollDiff.x || increase;
      if (!shiftKey && !scrollDiff.x && canScroll) scrollCallback(['right'], keyboardDragSpeed);
    }

    if (dragKeys.up.includes(key)) {
      posDirection.y = scrollDiff.y || -increase;
      if (!shiftKey && !scrollDiff.y && canScroll) scrollCallback(['top'], keyboardDragSpeed);
    }

    if (dragKeys.down.includes(key)) {
      posDirection.y = scrollDiff.y || increase;
      if (!shiftKey && !scrollDiff.y && canScroll) scrollCallback(['bottom'], keyboardDragSpeed);
    }

    return posDirection;
  });

  // @ts-check
  /**
   * Logic when an element is selected
   * @param {Object} p
   * @param {DSElement} p.element
   * @param {boolean} p.force
   * @param {boolean} p.multiSelectionToggle
   * @param {Set} p.SelectedSet
   * @param {string} p.hoverClassName
   */

  var handleSelection = (function (_ref) {
    var element = _ref.element,
        force = _ref.force,
        multiSelectionToggle = _ref.multiSelectionToggle,
        SelectedSet = _ref.SelectedSet,
        hoverClassName = _ref.hoverClassName;
    if (element.classList.contains(hoverClassName) && !force) return;
    if (!SelectedSet.has(element)) SelectedSet.add(element);else if (multiSelectionToggle) SelectedSet["delete"](element);
    element.classList.add(hoverClassName);
  });

  // @ts-check
  /**
   * Logic when an element is de-selected
   * @param {Object} p
   * @param {DSElement} p.element
   * @param {boolean} p.force
   * @param {Set} p.SelectedSet
   * @param {Set} p.PrevSelectedSet
   * @param {string} p.hoverClassName
   */

  var handleUnSelection = (function (_ref) {
    var element = _ref.element,
        force = _ref.force,
        SelectedSet = _ref.SelectedSet,
        PrevSelectedSet = _ref.PrevSelectedSet,
        hoverClassName = _ref.hoverClassName;
    if (!element.classList.contains(hoverClassName) && !force) return false;
    var inSelection = SelectedSet.has(element);
    var inPrevSelection = PrevSelectedSet.has(element);
    /**
     * Special for issue #9.
     * if a multi-select-key is pressed, ds 'remembers' the last selection and reverts
     * to that state if the selection is not kept, to mimic the natural OS behaviour
     * = if item was selected and is not in selection anymore, reselect it
     * = if item was not selected and is not in selection anymore, unselect it
     */

    if (inSelection && !inPrevSelection) SelectedSet["delete"](element);else if (!inSelection && inPrevSelection) SelectedSet.add(element);
    element.classList.remove(hoverClassName);
  });

  // @ts-check
  /**
   * Axis-Aligned Bounding Box Collision Detection.
   * Imagine following Example:
   *
   *
   *        b01
   *     a01[1]a02
   *        b02      b11
   *              a11[2]a12
   *                 b12
   *
   *
   * to check if those two boxes collide we do this AABB calculation:
   * 1. a01 < a12 (left border pos box1 smaller than right border pos box2)
   * 2. a02 > a11 (right border pos box1 larger than left border pos box2)
   * 3. b01 < b12 (top border pos box1 smaller than bottom border pos box2)
   * 4. b02 > b11 (bottom border pos box1 larger than top border pos box2)
   * {@link https://en.wikipedia.org/wiki/Minimum_bounding_box#Axis-aligned_minimum_bounding_box Wikipedia}
   * {@link https://developer.mozilla.org/en-US/docs/Games/Techniques/2D_collision_detection MDN}
   * @param {{left:number,right:number,top:number,bottom:number}} el1
   * @param {{left:number,right:number,top:number,bottom:number}} el2
   * @returns {boolean}
   */

  var isCollision = (function (el1, el2) {
    if (el1.left < el2.right && // 1.
    el1.right > el2.left && // 2.
    el1.top < el2.bottom && // 3.
    el1.bottom > el2.top // 4.
    ) return true; // collision detected!
    else return false;
  });

  // @ts-check
  /**
   * Moves the element in a posDirection
   * @param {Object} p
   * @param {DSElement} p.element
   * @param {Vect2} p.posDirection
   * @param {DSBoundingRect} p.containerRect
   * @param {boolean} p.useTransform
   */

  var moveElement = (function (_ref) {
    var element = _ref.element,
        posDirection = _ref.posDirection,
        containerRect = _ref.containerRect,
        useTransform = _ref.useTransform;
    var elementPos = getStylePosition(element, useTransform);
    var newPos = calc(elementPos, '+', posDirection);
    setStylePosition(element, newPos, useTransform);
    var elementRect = element.getBoundingClientRect();
    var edges = getOverflowEdges({
      elementRect: elementRect,
      containerRect: containerRect
    });
    handleElementOverflow({
      element: element,
      edges: edges,
      elementRect: elementRect,
      containerRect: containerRect,
      elementPos: newPos,
      useTransform: useTransform
    });
  });

  // @ts-check
  /**
   * Removes event-listeners to the selectorArea
   * @param {MutationObserver} modificationObserver
   * @param {DSModificationCallback} callback
   */

  var removeModificationObservers = (function (modificationObserver, callback) {
    window.removeEventListener('resize', callback);
    window.removeEventListener('scroll', callback);
    modificationObserver.disconnect();
  });

  // @ts-check
  /**
   * Scroll the element in the specified direction
   * @param {DSArea} element
   * @param {Array.<'top'|'bottom'|'left'|'right'|undefined>} directions
   * @param {number} multiplier
   */

  var scrollElement = (function (element, directions, multiplier) {
    if (!directions.length) return;
    var docEl = document && document.documentElement && document.documentElement.scrollTop && document.documentElement;

    var _element = element instanceof HTMLDocument ? docEl || document.body : element;

    var scrollTop = directions.includes('top') && _element.scrollTop > 0;

    var scrollBot = directions.includes('bottom') && _element.scrollTop < _element.scrollHeight;

    var scrollLeft = directions.includes('left') && _element.scrollLeft > 0;

    var scrollRight = directions.includes('right') && _element.scrollLeft < _element.scrollWidth;

    if (scrollTop) _element.scrollTop -= 1 * multiplier;
    if (scrollBot) _element.scrollTop += 1 * multiplier;
    if (scrollLeft) _element.scrollLeft -= 1 * multiplier;
    if (scrollRight) _element.scrollLeft += 1 * multiplier;
  });

  // @ts-check
  /**
   * Sets the style position to the X and Y coordinates
   * Can handle translate and top/left
   * @param {DSElement} element
   * @param {Vect2} values
   * @param {boolean} [useTranslate]
   * @return {DSElement}
   */

  var setStylePosition = (function (element, values, useTranslate) {
    if (useTranslate) {
      var prevTransform = element.style.transform;
      element.style.transform = "translate3d(".concat(values.x, "px,").concat(values.y, "px,1px) ").concat(prevTransform.replace(/translate.*?\)/g, ''));
    } else {
      element.style.left = "".concat(values.x, "px");
      element.style.top = "".concat(values.y, "px");
    }

    return element;
  });

  /**
   * @typedef {function} DSSubscribe
   * @param {DSCallbackNames} eventName
   * @param {DSCallback} callback
   * @returns {number} event id, can be used to unsubscribe more efficiently
   */

  /**
   * @typedef {function} DSPublish
   * @param {DSCallbackNames} eventName
   * @param {CallbackObject} data passed to the subscription method
   */

  /**
   * Maps internal events to external ones
   *
   * @param {Object} p
   * @param {DSSubscribe} p.subscribe
   * @param {DSPublish} p.publish
   * @param {Interaction} p.Interaction
   * @param {SelectedSet} p.SelectedSet
   */

  var subscriberAliases = (function (_ref) {
    var subscribe = _ref.subscribe,
        publish = _ref.publish,
        Interaction = _ref.Interaction,
        SelectedSet = _ref.SelectedSet;
    var mapping = {
      'Selected:added': [{
        name: 'elementselect'
      }],
      'Selected:removed': [{
        name: 'elementunselect'
      }],
      'Area:scroll': [{
        name: 'autoscroll'
      }],
      // scroll_directions, scroll_multiplier
      'Interaction:start': [{
        name: 'dragstart'
      }],
      // event, isDraggingKeyboard
      'Interaction:update': [{
        name: 'dragmove',
        condition: function condition(data) {
          return data.event;
        }
      }],
      // event, isDraggingKeyboard
      'Interaction:end': [{
        name: 'callback'
      }] // event, isDraggingKeyboard

    };

    var _loop = function _loop() {
      var _Object$entries$_i = _slicedToArray(_Object$entries[_i], 2),
          sub_name = _Object$entries$_i[0],
          pubs = _Object$entries$_i[1];

      ['pre', false].forEach(function (filler) {
        return subscribe(filler ? "".concat(sub_name, ":").concat(filler) : sub_name, function (data) {
          return pubs.forEach(function (pub) {
            return (!pub.condition || pub.condition(data)) && publish(filler ? "".concat(filler).concat(pub.name) : pub.name, _objectSpread2({
              items: SelectedSet.elements,
              isDragging: Interaction.isDragging
            }, data));
          });
        });
      });
    };

    for (var _i = 0, _Object$entries = Object.entries(mapping); _i < _Object$entries.length; _i++) {
      _loop();
    }
  });

  /**
   * Transforms any list or single item to an array so user doesn’t have to care.
   * @param {DSInputElements} items a single item, a Node-list or any element group
   * @return {DSElements}
   */

  var toArray = (function (items) {
    if (!items) return [];
    if (!Array.isArray(items) && (items instanceof HTMLElement || items instanceof SVGElement)) return [items];
    return _toConsumableArray(items);
  });

  // @ts-check
  /**
   * Updates element style left, top, width, height values
   * according to pos input object.
   * @param {HTMLElement} element
   * @param {{left:number,top:number,width:number,height:number}} pos
   */

  var updateElementStylePos = (function (element, pos) {
    element.style.left = "".concat(pos.left, "px");
    element.style.top = "".concat(pos.top, "px");
    element.style.width = "".concat(pos.width, "px");
    element.style.height = "".concat(pos.height, "px");
  });

  /**
   * @typedef {Object} AreaProps
   * @property {DSArea} area
   * @property {PubSub} PS
   * @property {number} zoom
   */

  var Area = /*#__PURE__*/function () {
    /**
     * @type {DSModificationCallback}
     * @private
     */

    /**
     * @type {MutationObserver}
     * @private
     */

    /**
     * @type {number}
     * @private
     */

    /**
     * @type {DSArea}
     * @private
     */

    /**
     * @type {DSArea[]}
     * @private
     */

    /**
     * @type {CSSStyleDeclaration}
     * @private
     * */

    /**
     * @type {{top:number,bottom:number,left:number,right:number}}
     * @private
     * */

    /**
     * @type {DSBoundingRect}
     * @private
     * */

    /**
     * @constructor Area
     * @param {AreaProps} settings
     * @ignore
     */
    function Area(_ref) {
      var _this = this;

      var _area = _ref.area,
          PS = _ref.PS,
          zoom = _ref.zoom;

      _classCallCheck(this, Area);

      _defineProperty(this, "_modificationCallback", void 0);

      _defineProperty(this, "_modificationObserver", void 0);

      _defineProperty(this, "_zoom", void 0);

      _defineProperty(this, "_node", void 0);

      _defineProperty(this, "_parentNodes", void 0);

      _defineProperty(this, "_computedStyle", void 0);

      _defineProperty(this, "_computedBorder", void 0);

      _defineProperty(this, "_rect", void 0);

      _defineProperty(this, "setArea", function (area) {
        _this._node = area;
        handleElementPositionAttribute({
          computedStyle: _this.computedStyle,
          node: _this._node
        }); // first immediate debounce to update values after dom-update

        setTimeout(function () {
          _this.PubSub.publish('Area:modified:pre', {
            item: _this
          });

          _this.reset();

          _this.PubSub.publish('Area:modified', {
            item: _this
          });
        });
      });

      _defineProperty(this, "start", function () {
        addModificationObservers(_this.parentNodes, _this._modificationCallback, _this._modificationObserver);
      });

      _defineProperty(this, "reset", function () {
        _this._computedStyle = undefined;
        _this._rect = undefined;
        _this._computedBorder = undefined;
        _this._parentNodes = undefined;
      });

      _defineProperty(this, "stop", function () {
        removeModificationObservers(_this._modificationObserver, _this._modificationCallback);

        _this.reset();
      });

      _defineProperty(this, "scroll", function (directions, multiplier) {
        var data = {
          scroll_directions: directions,
          scroll_multiplier: multiplier
        };

        _this.PubSub.publish('Area:scroll:pre', data);

        scrollElement(_this._node, directions, multiplier);

        _this.PubSub.publish('Area:scroll', data);
      });

      this._zoom = zoom;
      this.PubSub = PS;
      this.setArea(_area);
      this._modificationCallback = debounce(function (event) {
        _this.PubSub.publish('Area:modified:pre', {
          event: event,
          item: _this
        });

        _this.reset();

        _this.PubSub.publish('Area:modified', {
          event: event,
          item: _this
        });
      }, 60);
      this._modificationObserver = new MutationObserver(this._modificationCallback);
      this.PubSub.subscribe('Interaction:init', this.start);
      this.PubSub.subscribe('Interaction:end', this.reset);
    }
    /** @param {DSArea} area */


    _createClass(Area, [{
      key: "HTMLNode",
      //////////////////////////////////////////////////////////////////////////////////////
      // Node Getters
      get: function get() {
        return (
          /** @type {DSArea} */
          this._node
        );
      }
      /**
       * The computed border from the element (caches result)
       * @type {{top:number,bottom:number,left:number,right:number}}
       */

    }, {
      key: "computedBorder",
      get: function get() {
        if (this._computedBorder) return this._computedBorder;
        return {
          top: parseInt(this.computedStyle.borderTopWidth),
          bottom: parseInt(this.computedStyle.borderBottomWidth),
          left: parseInt(this.computedStyle.borderLeftWidth),
          right: parseInt(this.computedStyle.borderRightWidth)
        };
      }
      /**
       * The computed styles from the element (caches result)
       * @type {CSSStyleDeclaration}
       */

    }, {
      key: "computedStyle",
      get: function get() {
        if (this._computedStyle) return this._computedStyle;
        if (this.HTMLNode instanceof HTMLDocument) return this._computedStyle = window.getComputedStyle(this.HTMLNode.body || this.HTMLNode.documentElement);else return this._computedStyle = window.getComputedStyle(this.HTMLNode);
      }
      /**
       * The element rect (caches result) (without scrollbar or borders)
       * @type {DSBoundingRect}
       */

    }, {
      key: "rect",
      get: function get() {
        if (this._rect) return this._rect;
        return this._rect = getAreaRect(this.HTMLNode, this._zoom);
      }
    }, {
      key: "parentNodes",
      get: function get() {
        if (this._parentNodes) return this._parentNodes;

        var traverse = function traverse(toWatch) {
          var _toWatch$index;

          var index = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
          var parent = (_toWatch$index = toWatch[index]) === null || _toWatch$index === void 0 ? void 0 : _toWatch$index.parentNode;

          if (parent) {
            toWatch.push(parent);
            index++;
            return traverse(toWatch, index);
          } else {
            return toWatch;
          }
        };

        this._parentNodes = traverse([this.HTMLNode]);
        return this._parentNodes;
      }
    }]);

    return Area;
  }();

  var Drag = /*#__PURE__*/function () {
    /**
     * @type {boolean}
     * @private
     */

    /**
     * @type {Vect2}
     * @private
     */

    /**
     * @type {Vect2}
     * @private
     */

    /**
     * @type {DSElements}
     * @private
     */

    /**
     * @type {boolean}
     * @private
     */

    /**
     * @type {DSDragKeys}
     * @private
     */

    /**
     * @type {string[]}
     * @private
     */

    /**
     * @type {boolean}
     * @private
     */

    /**
     * @type {number}
     * @private
     */

    /**
     * @type {number}
     * @private
     */

    /**
     * @param {Object} p
     * @param {DragSelect} p.DS
     * @param {boolean} p.draggability
     * @param {boolean} p.useTransform
     * @param {DSDragKeys} p.dragKeys
     * @param {boolean} p.keyboardDrag
     * @param {number} p.keyboardDragSpeed
     * @param {number} p.zoom
     * @ignore
     */
    function Drag(_ref) {
      var _this = this;

      var DS = _ref.DS,
          dragKeys = _ref.dragKeys,
          draggability = _ref.draggability,
          keyboardDrag = _ref.keyboardDrag,
          keyboardDragSpeed = _ref.keyboardDragSpeed,
          useTransform = _ref.useTransform,
          zoom = _ref.zoom;

      _classCallCheck(this, Drag);

      _defineProperty(this, "_useTransform", void 0);

      _defineProperty(this, "_prevCursorPos", void 0);

      _defineProperty(this, "_prevScrollPos", void 0);

      _defineProperty(this, "_elements", []);

      _defineProperty(this, "_draggability", void 0);

      _defineProperty(this, "_dragKeys", void 0);

      _defineProperty(this, "_dragKeysFlat", void 0);

      _defineProperty(this, "_keyboardDrag", void 0);

      _defineProperty(this, "_keyboardDragSpeed", void 0);

      _defineProperty(this, "_zoom", void 0);

      _defineProperty(this, "keyboardDrag", function (_ref2) {
        var event = _ref2.event,
            key = _ref2.key;
        if (!_this._keyboardDrag || !_this._dragKeysFlat.includes(key) || !_this.DS.SelectedSet.size || !_this._draggability || _this.DS["continue"]) return;
        var publishData = {
          event: event,
          isDragging: true,
          isDraggingKeyboard: true
        };

        _this.DS.publish(['Interaction:start:pre', 'Interaction:start'], publishData);

        _this._elements = _this.DS.getSelection();

        _this.handleZIndex(true);

        var posDirection = handleKeyboardDragPosDifference({
          shiftKey: _this.DS.stores.KeyStore.currentValues.includes('shift'),
          keyboardDragSpeed: _this._keyboardDragSpeed,
          zoom: _this._zoom,
          key: key,
          scrollCallback: _this.DS.Area.scroll,
          scrollDiff: _this._scrollDiff,
          canScroll: _this.DS.stores.ScrollStore.canScroll,
          dragKeys: _this._dragKeys
        });

        _this._elements.forEach(function (element) {
          return moveElement({
            element: element,
            posDirection: posDirection,
            containerRect: _this.DS.SelectorArea.rect,
            useTransform: _this._useTransform
          });
        });

        _this.DS.publish(['Interaction:update:pre', 'Interaction:update'], publishData);
      });

      _defineProperty(this, "keyboardEnd", function (_ref3) {
        var event = _ref3.event,
            key = _ref3.key;
        if (!_this._keyboardDrag || !_this._dragKeysFlat.includes(key) || !_this.DS.SelectedSet.size || !_this._draggability) return;
        var publishData = {
          event: event,
          isDragging: _this._draggability,
          isDraggingKeyboard: true
        };

        _this.DS.publish(['Interaction:end:pre', 'Interaction:end'], publishData);
      });

      _defineProperty(this, "start", function (_ref4) {
        var isDragging = _ref4.isDragging,
            isDraggingKeyboard = _ref4.isDraggingKeyboard;
        if (!isDragging || isDraggingKeyboard) return;
        _this._prevCursorPos = null;
        _this._prevScrollPos = null;
        _this._elements = _this.DS.getSelection();

        _this.handleZIndex(true);
      });

      _defineProperty(this, "stop", function (evt) {
        if (evt !== null && evt !== void 0 && evt.isKeyboard) return;
        _this._prevCursorPos = null;
        _this._prevScrollPos = null;

        _this.handleZIndex(false);

        _this._elements = [];
      });

      _defineProperty(this, "update", function (_ref5) {
        var isDragging = _ref5.isDragging,
            isDraggingKeyboard = _ref5.isDraggingKeyboard;
        if (!isDragging || !_this._elements.length || isDraggingKeyboard || _this.DS["continue"]) return;
        var posDirection = calc(_this._cursorDiff, '+', _this._scrollDiff);

        _this._elements.forEach(function (element) {
          return moveElement({
            element: element,
            posDirection: posDirection,
            containerRect: _this.DS.SelectorArea.rect,
            useTransform: _this._useTransform
          });
        });
      });

      _defineProperty(this, "handleZIndex", function (add) {
        _this._elements.forEach(function (element) {
          return element.style.zIndex = "".concat((parseInt(element.style.zIndex) || 0) + add ? 9999 : -9998);
        });
      });

      this.DS = DS;
      this._useTransform = useTransform;
      this._keyboardDragSpeed = keyboardDragSpeed;
      this._keyboardDrag = keyboardDrag;
      this._zoom = zoom;
      this._draggability = draggability;
      this._dragKeys = {
        up: dragKeys.up.map(function (k) {
          return k.toLowerCase();
        }),
        down: dragKeys.down.map(function (k) {
          return k.toLowerCase();
        }),
        left: dragKeys.left.map(function (k) {
          return k.toLowerCase();
        }),
        right: dragKeys.right.map(function (k) {
          return k.toLowerCase();
        })
      };
      this._dragKeysFlat = [].concat(_toConsumableArray(this._dragKeys.up), _toConsumableArray(this._dragKeys.down), _toConsumableArray(this._dragKeys.left), _toConsumableArray(this._dragKeys.right));
      this.DS.subscribe('Interaction:start', this.start);
      this.DS.subscribe('Interaction:end', this.stop);
      this.DS.subscribe('Interaction:update', this.update);
      this.DS.subscribe('KeyStore:down', this.keyboardDrag);
      this.DS.subscribe('KeyStore:up', this.keyboardEnd);
    }

    _createClass(Drag, [{
      key: "_cursorDiff",
      get: function get() {
        var currentPointerVal = this.DS.stores.PointerStore.currentVal;
        var cursorDiff = this._prevCursorPos ? calc(currentPointerVal, '-', this._prevCursorPos) : {
          x: 0,
          y: 0
        };
        this._prevCursorPos = currentPointerVal;
        return cursorDiff;
      }
    }, {
      key: "_scrollDiff",
      get: function get() {
        var currentScrollVal = this.DS.stores.ScrollStore.currentVal;
        var scrollDiff = this._prevScrollPos ? calc(currentScrollVal, '-', this._prevScrollPos) : {
          x: 0,
          y: 0
        };
        this._prevScrollPos = currentScrollVal;
        return scrollDiff;
      }
    }]);

    return Drag;
  }();

  var Interaction = /*#__PURE__*/function () {
    /**
     * @type {DSArea}
     * @private
     * */

    /**
     * @type {boolean}
     * @private
     * */

    /**
     * @type {boolean}
     * @private
     * */

    /**
     * @type {string}
     * @private
     * */

    /** @type {boolean} */

    /** @type {boolean} */

    /**
     * @constructor Interaction
     * @param {Object} obj
     * @param {DragSelect} obj.DS
     * @param {DSArea} obj.areaElement
     * @param {boolean} obj.draggability
     * @param {boolean} obj.immediateDrag
     * @param {string} obj.selectableClass
     * @ignore
     */
    function Interaction(_ref) {
      var _this = this;

      var DS = _ref.DS,
          areaElement = _ref.areaElement,
          draggability = _ref.draggability,
          immediateDrag = _ref.immediateDrag,
          selectableClass = _ref.selectableClass;

      _classCallCheck(this, Interaction);

      _defineProperty(this, "_areaElement", void 0);

      _defineProperty(this, "_draggability", void 0);

      _defineProperty(this, "_immediateDrag", void 0);

      _defineProperty(this, "_selectableClass", void 0);

      _defineProperty(this, "isInteracting", void 0);

      _defineProperty(this, "isDragging", void 0);

      _defineProperty(this, "init", function () {
        return _this.DS.publish('Interaction:init:pre', {});
      });

      _defineProperty(this, "_init", function () {
        _this.stop();

        _this._areaElement.addEventListener('mousedown', _this.start);

        _this._areaElement.addEventListener('touchstart', _this.start, {
          passive: false
        });

        _this.DS.publish('Interaction:init', {});
      });

      _defineProperty(this, "start", function (event) {
        return _this.DS.publish('Interaction:start:pre', {
          event: event,
          isDragging: _this.isDragging
        });
      });

      _defineProperty(this, "_start", function (event) {
        if (event.type === 'touchstart') event.preventDefault(); // Call preventDefault() to prevent double click issue, see https://github.com/ThibaultJanBeyer/DragSelect/pull/29 & https://developer.mozilla.org/vi/docs/Web/API/Touch_events/Supporting_both_TouchEvent_and_MouseEvent

        if (!_this._canInteract(event)) return;
        _this.isInteracting = true;
        _this.isDragging = _this.isDragEvent(event);

        _this.DS.publish('Interaction:start', {
          event: event,
          isDragging: _this.isDragging
        });

        document.addEventListener('mouseup', _this.reset);
        document.addEventListener('touchend', _this.reset);
      });

      _defineProperty(this, "isDragEvent", function (event) {
        var clickedElement =
        /** @type {Element} */
        event.target.closest(".".concat(_this._selectableClass));
        if (!_this._draggability || _this.DS.stores.KeyStore.isMultiSelectKeyPressed(event) || !clickedElement) return false;

        if (_this._immediateDrag) {
          if (!_this.DS.SelectedSet.size) _this.DS.SelectedSet.add(
          /** @type {DSElement} */
          clickedElement);else if (!_this.DS.SelectedSet.has(clickedElement)) {
            _this.DS.SelectedSet.clear();

            _this.DS.SelectedSet.add(
            /** @type {DSElement} */
            clickedElement);
          }
        }

        if (_this.DS.SelectedSet.has(clickedElement)) return true;
        return false;
      });

      _defineProperty(this, "onClick", function (_ref2) {
        var event = _ref2.event;
        if (!_this._canInteract(event)) return;
        if (event.detail > 0) return; // mouse interaction

        var _this$DS = _this.DS,
            _this$DS$stores = _this$DS.stores,
            PointerStore = _this$DS$stores.PointerStore,
            KeyStore = _this$DS$stores.KeyStore,
            SelectableSet = _this$DS.SelectableSet,
            SelectedSet = _this$DS.SelectedSet;
        PointerStore.start(event);
        var node =
        /** @type {any} */
        event.target;
        if (!SelectableSet.has(node)) return;
        if (!KeyStore.isMultiSelectKeyPressed(event)) SelectedSet.clear();
        SelectedSet.toggle(node);

        _this.reset(); // simulate mouse-up (that does not exist on keyboard)

      });

      _defineProperty(this, "stop", function () {
        _this.isInteracting = false;
        _this.isDragging = false;

        _this._areaElement.removeEventListener('mousedown', _this.start);

        _this._areaElement.removeEventListener('touchstart', _this.start, {
          // @ts-ignore
          passive: false
        });

        document.removeEventListener('mouseup', _this.reset);
        document.removeEventListener('touchend', _this.reset);
      });

      _defineProperty(this, "update", function (_ref3) {
        var event = _ref3.event,
            scroll_directions = _ref3.scroll_directions,
            scroll_multiplier = _ref3.scroll_multiplier;
        if (_this.isInteracting) _this.DS.publish(['Interaction:update:pre', 'Interaction:update'], {
          event: event,
          scroll_directions: scroll_directions,
          scroll_multiplier: scroll_multiplier,
          isDragging: _this.isDragging
        });
      });

      _defineProperty(this, "reset", function (event) {
        return _this.DS.publish('Interaction:end:pre', {
          event: event,
          isDragging: _this.isDragging
        });
      });

      _defineProperty(this, "_reset", function (event) {
        var isDragging = _this.isDragging;

        _this.stop();

        _this.init();

        _this.DS.publish('Interaction:end', {
          event: event,
          isDragging: isDragging
        });
      });

      this._areaElement = areaElement;
      this._draggability = draggability;
      this._immediateDrag = immediateDrag;
      this._selectableClass = selectableClass;
      this.DS = DS;
      this.DS.subscribe('PointerStore:updated', this.update);
      this.DS.subscribe('Selectable:click', this.onClick);
      this.DS.subscribe('Selectable:pointer', function (_ref4) {
        var event = _ref4.event;
        return _this.start(event);
      });
      this.DS.subscribe('Interaction:start:pre', function (_ref5) {
        var event = _ref5.event;
        return _this._start(event);
      });
      this.DS.subscribe('Interaction:init:pre', this._init);
      this.DS.subscribe('Interaction:end:pre', function (_ref6) {
        var event = _ref6.event;
        return _this._reset(event);
      });
      this.DS.subscribe('Area:scroll', this.update);
    }

    _createClass(Interaction, [{
      key: "_canInteract",

      /**
       * @param {DSEvent} event
       */
      value: function _canInteract(event) {
        var isKeyboardClick =
        /** @type {MouseEvent} */
        event.clientX === 0 &&
        /** @type {MouseEvent} */
        event.clientY === 0 &&
        /** @type {MouseEvent} */
        event.detail === 0 && event.target;
        if (
        /** @type {MouseEvent} */
        event.button === 2 || // right-clicks
        this.isInteracting || // fix double-click issues
        event.target && !this.DS.SelectorArea.isInside(
        /** @type {DSElement} */
        event.target) || //fix outside elements issue
        !isKeyboardClick && !this.DS.SelectorArea.isClicked(event) // make sure the mouse click is inside the area
        ) return false;
        return true;
      }
      /**
       * @param {DSEvent} event
       */

    }]);

    return Interaction;
  }();

  var PubSub = function PubSub(_ref) {
    var _this = this;

    var DS = _ref.DS;

    _classCallCheck(this, PubSub);

    _defineProperty(this, "subscribers", {});

    _defineProperty(this, "subscribe", function (eventName, callback) {
      if (!Array.isArray(_this.subscribers[eventName])) _this.subscribers[eventName] = [];

      _this.subscribers[eventName].push(callback);

      return _this.subscribers[eventName].length - 1;
    });

    _defineProperty(this, "unsubscribe", function (eventName, callback, id) {
      if (id >= 0) _this.subscribers[eventName].splice(id, 1);else if (callback) _this.subscribers[eventName] = _this.subscribers[eventName].filter(function (cb) {
        return cb !== callback;
      });
    });

    _defineProperty(this, "publish", function (eventName, data) {
      if (Array.isArray(eventName)) eventName.forEach(function (name) {
        return _this._publish(name, data);
      });else _this._publish(eventName, data);
    });

    _defineProperty(this, "_publish", function (eventName, data) {
      var subscribers = _this.subscribers[eventName];
      if (!Array.isArray(subscribers)) return;
      if (eventName.includes(":pre")) _this._handlePrePublish(subscribers, data);else _this._handlePublish(subscribers, data);
    });

    _defineProperty(this, "_handlePublish", function (subscribers, data) {
      for (var i = 0, il = subscribers.length; i < il; i++) {
        if (_this.DS.stopped) return;
        subscribers[i](data);
      }
    });

    _defineProperty(this, "_handlePrePublish", function (subscribers, data) {
      var i = subscribers.length;

      while (i--) {
        if (_this.DS.stopped) return;
        subscribers[i](data);
      }
    });

    this.DS = DS;
  }
  /**
   * Subscribe to an event
   * @memberof DragSelect#
   * @function subscribe
   * @param {DSCallbackNames} eventName
   * @param {DSCallback} callback
   * @returns {number} event id, can be used to unsubscribe more efficiently
   */
  ;

  var SelectableSet = /*#__PURE__*/function (_Set) {
    _inherits(SelectableSet, _Set);

    var _super = _createSuper(SelectableSet);

    /**
     * @type {DSElements}
     * @private
     * */

    /**
     * @type {string}
     * @private
     * */

    /**
     * @type {string}
     * @private
     * */

    /**
     * @type {boolean}
     * @private
     * */

    /**
     * @type {boolean}
     * @private
     * */

    /**
     * @constructor SelectableSet
     * @param {Object} p
     * @param {DSInputElements} p.elements
     * @param {DragSelect} p.DS
     * @param {string} p.className
     * @param {string} p.hoverClassName
     * @param {boolean} p.useTransform
     * @param {boolean} p.draggability
     * @ignore
     */
    function SelectableSet(_ref) {
      var _this;

      var _elements = _ref.elements,
          className = _ref.className,
          hoverClassName = _ref.hoverClassName,
          draggability = _ref.draggability,
          useTransform = _ref.useTransform,
          DS = _ref.DS;

      _classCallCheck(this, SelectableSet);

      _this = _super.call(this);

      _defineProperty(_assertThisInitialized(_this), "_initElements", void 0);

      _defineProperty(_assertThisInitialized(_this), "_className", void 0);

      _defineProperty(_assertThisInitialized(_this), "_hoverClassName", void 0);

      _defineProperty(_assertThisInitialized(_this), "_useTransform", void 0);

      _defineProperty(_assertThisInitialized(_this), "_draggability", void 0);

      _defineProperty(_assertThisInitialized(_this), "init", function () {
        return _this._initElements.forEach(function (el) {
          return _this.add(el);
        });
      });

      _defineProperty(_assertThisInitialized(_this), "clear", function () {
        return _this.forEach(function (el) {
          return _this["delete"](el);
        });
      });

      _defineProperty(_assertThisInitialized(_this), "_onClick", function (event) {
        return _this.DS.publish(['Selectable:click:pre', 'Selectable:click'], {
          event: event
        });
      });

      _defineProperty(_assertThisInitialized(_this), "_onPointer", function (event) {
        return _this.DS.publish(['Selectable:pointer:pre', 'Selectable:pointer'], {
          event: event
        });
      });

      _defineProperty(_assertThisInitialized(_this), "addAll", function (elements) {
        return elements.forEach(function (el) {
          return _this.add(el);
        });
      });

      _defineProperty(_assertThisInitialized(_this), "deleteAll", function (elements) {
        return elements.forEach(function (el) {
          return _this["delete"](el);
        });
      });

      _this.DS = DS;
      _this._initElements = toArray(_elements);
      _this._className = className;
      _this._hoverClassName = hoverClassName;
      _this._useTransform = useTransform;
      _this._draggability = draggability;

      _this.DS.subscribe('Interaction:init', _this.init);

      return _this;
    }

    _createClass(SelectableSet, [{
      key: "add",

      /** @param {DSElement} element */
      value: function add(element) {
        element.classList.add(this._className);
        element.addEventListener('click', this._onClick);
        element.addEventListener('mousedown', this._onPointer);
        element.addEventListener('touchstart', this._onPointer, {
          // @ts-ignore
          passive: false
        });
        if (this._draggability && !this._useTransform) handleElementPositionAttribute({
          computedStyle: window.getComputedStyle(element),
          node: element
        });
        return _get(_getPrototypeOf(SelectableSet.prototype), "add", this).call(this, element);
      }
      /** @param {DSElement} element */

    }, {
      key: "delete",
      value: function _delete(element) {
        element.classList.remove(this._className);
        element.classList.remove(this._hoverClassName);
        element.removeEventListener('click', this._onClick);
        element.removeEventListener('mousedown', this._onPointer);
        element.removeEventListener('touchstart', this._onPointer, {
          // @ts-ignore
          passive: false
        });
        return _get(_getPrototypeOf(SelectableSet.prototype), "delete", this).call(this, element);
      }
    }, {
      key: "elements",

      /** @return {DSElements} */
      get: function get() {
        return Array.from(this.values());
      }
    }]);

    return SelectableSet;
  }( /*#__PURE__*/_wrapNativeSuper(Set));

  var SelectedSet = /*#__PURE__*/function (_Set) {
    _inherits(SelectedSet, _Set);

    var _super = _createSuper(SelectedSet);

    /**
     * @type {string}
     * @private
     * */

    /**
     * @constructor SelectableSet
     * @param {Object} p
     * @param {DragSelect} p.DS
     * @param {string} p.className
     * @ignore
     */
    function SelectedSet(_ref) {
      var _this;

      var className = _ref.className,
          DS = _ref.DS;

      _classCallCheck(this, SelectedSet);

      _this = _super.call(this);

      _defineProperty(_assertThisInitialized(_this), "_className", void 0);

      _defineProperty(_assertThisInitialized(_this), "clear", function () {
        return _this.forEach(function (el) {
          return _this["delete"](el);
        });
      });

      _defineProperty(_assertThisInitialized(_this), "addAll", function (elements) {
        return elements.forEach(function (el) {
          return _this.add(el);
        });
      });

      _defineProperty(_assertThisInitialized(_this), "deleteAll", function (elements) {
        return elements.forEach(function (el) {
          return _this["delete"](el);
        });
      });

      _this.DS = DS;
      _this._className = className;
      return _this;
    }
    /** @param {DSElement} element */


    _createClass(SelectedSet, [{
      key: "add",
      value: function add(element) {
        if (_get(_getPrototypeOf(SelectedSet.prototype), "has", this).call(this, element)) return;
        var publishData = {
          items: this.elements,
          item: element
        };
        this.DS.publish('Selected:added:pre', publishData);

        _get(_getPrototypeOf(SelectedSet.prototype), "add", this).call(this, element);

        element.classList.add(this._className);
        element.style.zIndex = "".concat((parseInt(element.style.zIndex) || 0) + 1);
        this.DS.publish('Selected:added', publishData);
        return this;
      }
      /** @param {DSElement} element */

    }, {
      key: "delete",
      value: function _delete(element) {
        if (!_get(_getPrototypeOf(SelectedSet.prototype), "has", this).call(this, element)) return;
        var publishData = {
          items: this.elements,
          item: element
        };
        this.DS.publish('Selected:removed:pre', publishData);

        var deleted = _get(_getPrototypeOf(SelectedSet.prototype), "delete", this).call(this, element);

        element.classList.remove(this._className);
        element.style.zIndex = "".concat((parseInt(element.style.zIndex) || 0) - 1);
        this.DS.publish('Selected:removed', publishData);
        return deleted;
      }
    }, {
      key: "toggle",

      /**
       * Adds/Removes an element. If it is already selected = remove, if not = add.
       * @param {DSElement} element
       * @return {DSElement}
       */
      value: function toggle(element) {
        if (this.has(element)) this["delete"](element);else this.add(element);
        return element;
      }
      /** @param {DSElements} elements */

    }, {
      key: "elements",

      /** @return {DSElements} */
      get: function get() {
        return Array.from(this.values());
      }
    }]);

    return SelectedSet;
  }( /*#__PURE__*/_wrapNativeSuper(Set));

  var Selection = /*#__PURE__*/function () {
    /**
     * @type {Set}
     * @private
     * */

    /**
     * @type {string}
     * @private
     * */

    /**
     * @type {boolean}
     * @private
     * */

    /**
     * @constructor Selection
     * @param {{ DS:DragSelect, hoverClassName:string, multiSelectToggling:boolean }} p
     * @ignore
     */
    function Selection(_ref) {
      var _this = this;

      var DS = _ref.DS,
          hoverClassName = _ref.hoverClassName,
          multiSelectToggling = _ref.multiSelectToggling;

      _classCallCheck(this, Selection);

      _defineProperty(this, "_prevSelectedSet", void 0);

      _defineProperty(this, "_hoverClassName", void 0);

      _defineProperty(this, "_multiSelectToggling", void 0);

      _defineProperty(this, "start", function (_ref2) {
        var event = _ref2.event,
            isDragging = _ref2.isDragging;
        if (isDragging) return;

        _this._storePrevious(event);

        _this._handleInsideSelection(true, event);
      });

      _defineProperty(this, "update", function (_ref3) {
        var isDragging = _ref3.isDragging;
        if (isDragging || _this.DS["continue"]) return;

        _this._handleInsideSelection();
      });

      _defineProperty(this, "_handleInsideSelection", function (force, event) {
        var _this$DS = _this.DS,
            SelectableSet = _this$DS.SelectableSet,
            SelectorArea = _this$DS.SelectorArea,
            Selector = _this$DS.Selector;
        /** @type {any} */

        var elPosCombo = SelectableSet.elements.map(function (element) {
          return [element, element.getBoundingClientRect()];
        });
        var select = [];
        var unselect = [];

        for (var i = 0, il = elPosCombo.length; i < il; i++) {
          if (!SelectorArea.isInside(elPosCombo[i][0], elPosCombo[i][1])) continue;
          if (isCollision(elPosCombo[i][1], Selector.rect)) select.push(elPosCombo[i][0]);else unselect.push(elPosCombo[i][0]);
        }

        var multiSelectionToggle = _this.DS.stores.KeyStore.isMultiSelectKeyPressed(event) && _this._multiSelectToggling;

        if (_this.DS["continue"]) return;
        select.forEach(function (element) {
          return handleSelection({
            element: element,
            force: force,
            multiSelectionToggle: multiSelectionToggle,
            SelectedSet: _this.DS.SelectedSet,
            hoverClassName: _this._hoverClassName
          });
        });
        unselect.forEach(function (element) {
          return handleUnSelection({
            element: element,
            force: force,
            SelectedSet: _this.DS.SelectedSet,
            hoverClassName: _this._hoverClassName,
            PrevSelectedSet: _this._prevSelectedSet
          });
        });
      });

      this._hoverClassName = hoverClassName;
      this._multiSelectToggling = multiSelectToggling;
      this.DS = DS;
      this.DS.subscribe('Interaction:start', this.start);
      this.DS.subscribe('Interaction:update', this.update);
    }
    /**
     * Stores the previous selection (solves #9)
     * @param {DSEvent} event
     * @private
     * */


    _createClass(Selection, [{
      key: "_storePrevious",
      value: function _storePrevious(event) {
        var _this$DS2 = this.DS,
            KeyStore = _this$DS2.stores.KeyStore,
            SelectedSet = _this$DS2.SelectedSet;
        if (KeyStore.isMultiSelectKeyPressed(event)) this._prevSelectedSet = new Set(SelectedSet);else this._prevSelectedSet = new Set();
      }
      /** @param {{event:DSEvent,isDragging:boolean}} event */

    }]);

    return Selection;
  }();

  var Selector = /*#__PURE__*/function () {
    /**
     * @type {DSBoundingRect}
     * @private
     */

    /**
     * @constructor Selector
     * @param {Object} p
     * @param {DragSelect} p.DS
     * @param {HTMLElement} p.selector
     * @param {string} p.selectorClass
     * @param {boolean} p.customStyles
     * @ignore
     */
    function Selector(_ref) {
      var _this = this;

      var DS = _ref.DS,
          selector = _ref.selector,
          selectorClass = _ref.selectorClass,
          customStyles = _ref.customStyles;

      _classCallCheck(this, Selector);

      _defineProperty(this, "_rect", void 0);

      _defineProperty(this, "start", function (_ref2) {
        var isDragging = _ref2.isDragging;
        if (isDragging) return;
        var PointerStore = _this.DS.stores.PointerStore;
        var pPos = PointerStore.initialValArea;
        updateElementStylePos(_this.HTMLNode, vect2rect(pPos, 1));
        _this.HTMLNode.style.display = 'block';
        _this._rect = null;
      });

      _defineProperty(this, "stop", function () {
        _this.HTMLNode.style.width = '0';
        _this.HTMLNode.style.height = '0';
        _this.HTMLNode.style.display = 'none';
      });

      _defineProperty(this, "update", function (_ref3) {
        var isDragging = _ref3.isDragging;
        if (isDragging || _this.DS["continue"]) return;
        var _this$DS$stores = _this.DS.stores,
            ScrollStore = _this$DS$stores.ScrollStore,
            PointerStore = _this$DS$stores.PointerStore;
        var pos = getSelectorPosition({
          scrollAmount: ScrollStore.scrollAmount,
          initialPointerPos: PointerStore.initialValArea,
          pointerPos: PointerStore.currentValArea
        });
        updateElementStylePos(_this.HTMLNode, pos);
        _this._rect = null;
      });

      this.DS = DS;
      this.HTMLNode = selector || createSelectorElement(customStyles);
      this.HTMLNode.classList.add(selectorClass);
      this.DS.subscribe('Interaction:start', this.start);
      this.DS.subscribe('Interaction:update', this.update);
      this.DS.subscribe('Interaction:end', this.stop);
    }

    _createClass(Selector, [{
      key: "rect",
      get: function get() {
        if (this._rect) return this._rect;
        return this._rect = this.HTMLNode.getBoundingClientRect();
      }
    }]);

    return Selector;
  }();

  var SelectorArea = /*#__PURE__*/function () {
    /**
     * @type {number}
     * @private
     * */

    /**
     * @type {*}
     * @private
     * */

    /**
     * @type {DSBoundingRect}
     * @private
     */

    /**
     * @type {DSEdges}
     * @private
     */

    /**
     * @type {Vect2}
     * @private
     */

    /**
     * @class SelectorArea
     * @constructor SelectorArea
     * @param {{ DS:DragSelect, selectorAreaClass:string, autoScrollSpeed:number, overflowTolerance:Vect2}} obj
     * @ignore
     */
    function SelectorArea(_ref) {
      var _this = this;

      var DS = _ref.DS,
          selectorAreaClass = _ref.selectorAreaClass,
          autoScrollSpeed = _ref.autoScrollSpeed,
          overflowTolerance = _ref.overflowTolerance;

      _classCallCheck(this, SelectorArea);

      _defineProperty(this, "_autoScrollSpeed", void 0);

      _defineProperty(this, "_scrollInterval", void 0);

      _defineProperty(this, "_rect", void 0);

      _defineProperty(this, "currentEdges", []);

      _defineProperty(this, "_overflowTolerance", void 0);

      _defineProperty(this, "start", function () {
        return _this.applyElements('append');
      });

      _defineProperty(this, "applyElements", function () {
        var method = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'append';
        var docEl = document.body ? 'body' : 'documentElement';
        var methodName = "".concat(method, "Child");

        _this.HTMLNode[methodName](_this.DS.Selector.HTMLNode);

        document[docEl][methodName](_this.HTMLNode);
      });

      _defineProperty(this, "updatePos", function () {
        _this._rect = null;
        var rect = _this.DS.Area.rect;
        var border = _this.DS.Area.computedBorder;
        var style = _this.HTMLNode.style;
        var top = "".concat(rect.top + border.top, "px");
        var left = "".concat(rect.left + border.left, "px");
        var width = "".concat(rect.width, "px");
        var height = "".concat(rect.height, "px");
        if (style.top !== top) style.top = top;
        if (style.left !== left) style.left = left;
        if (style.width !== width) style.width = width;
        if (style.height !== height) style.height = height;
      });

      _defineProperty(this, "stop", function (remove) {
        _this.stopAutoScroll();

        if (remove) _this.applyElements('remove');
      });

      _defineProperty(this, "startAutoScroll", function () {
        _this.currentEdges = [];
        _this._scrollInterval = setInterval(function () {
          return _this.handleAutoScroll();
        }, 16);
      });

      _defineProperty(this, "handleAutoScroll", function () {
        if (_this.DS["continue"]) return;
        var _this$DS = _this.DS,
            PointerStore = _this$DS.stores.PointerStore,
            Area = _this$DS.Area;
        _this.currentEdges = getOverflowEdges({
          elementRect: vect2rect(PointerStore.currentVal),
          containerRect: _this.rect,
          tolerance: _this._overflowTolerance
        });
        if (_this.currentEdges.length) Area.scroll(_this.currentEdges, _this._autoScrollSpeed);
      });

      _defineProperty(this, "stopAutoScroll", function () {
        _this.currentEdges = [];
        clearInterval(_this._scrollInterval);
      });

      _defineProperty(this, "isInside", function (element, elementRect) {
        if (_this.DS.Area.HTMLNode.contains(element) && _this.DS.stores.ScrollStore.canScroll) return true;
        return isCollision(_this.rect, elementRect || element.getBoundingClientRect());
      });

      this._autoScrollSpeed = autoScrollSpeed;
      this._overflowTolerance = overflowTolerance;
      this.DS = DS;
      this.HTMLNode = createSelectorAreaElement(selectorAreaClass);
      this.DS.subscribe('Area:modified', this.updatePos);
      this.DS.subscribe('Interaction:init', this.start);
      this.DS.subscribe('Interaction:start', this.startAutoScroll);
      this.DS.subscribe('Interaction:end', function () {
        _this.updatePos();

        _this.stopAutoScroll();
      });
    }

    _createClass(SelectorArea, [{
      key: "isClicked",

      /**
       * checks if the click was triggered on the area.
       * @param {DSEvent} [event]
       * @returns {boolean}
       */
      value: function isClicked(event) {
        var PointerStore = this.DS.stores.PointerStore;
        var initialVal = event ? PointerStore.getPointerPosition(event) : PointerStore.initialVal;
        return isCollision({
          left: initialVal.x,
          top: initialVal.y,
          right: initialVal.x,
          bottom: initialVal.y
        }, this.rect);
      }
    }, {
      key: "rect",
      get: function get() {
        if (this._rect) return this._rect;
        return this._rect = this.HTMLNode.getBoundingClientRect();
      }
    }]);

    return SelectorArea;
  }();

  var KeyStore = /*#__PURE__*/function () {
    /**
     * @type {boolean}
     * @private
     * */

    /**
     * @type {DSMultiSelectKeys}
     * @private
     * */

    /**
     * @type {Set<string>}
     * @private
     * */

    /**
     * @type {{control:string,shift:string,meta:string}}
     * @private
     * */

    /**
     * @class KeyStore
     * @constructor KeyStore
     * @param {{DS:DragSelect,multiSelectKeys:DSMultiSelectKeys,multiSelectMode:boolean}} p
     * @ignore
     */
    function KeyStore(_ref) {
      var _this = this;

      var DS = _ref.DS,
          multiSelectKeys = _ref.multiSelectKeys,
          multiSelectMode = _ref.multiSelectMode;

      _classCallCheck(this, KeyStore);

      _defineProperty(this, "_multiSelectMode", void 0);

      _defineProperty(this, "_multiSelectKeys", void 0);

      _defineProperty(this, "_currentValues", new Set());

      _defineProperty(this, "_keyMapping", {
        control: 'ctrlKey',
        shift: 'shiftKey',
        meta: 'metaKey'
      });

      _defineProperty(this, "init", function () {
        document.addEventListener('keydown', _this.keydown);
        document.addEventListener('keyup', _this.keyup);
        window.addEventListener('blur', _this.reset);
      });

      _defineProperty(this, "keydown", function (event) {
        var key = event.key.toLowerCase();

        _this.DS.publish('KeyStore:down:pre', {
          event: event,
          key: key
        });

        _this._currentValues.add(key);

        _this.DS.publish('KeyStore:down', {
          event: event,
          key: key
        });
      });

      _defineProperty(this, "keyup", function (event) {
        var key = event.key.toLowerCase();

        _this.DS.publish('KeyStore:up:pre', {
          event: event,
          key: key
        });

        _this._currentValues["delete"](key);

        _this.DS.publish('KeyStore:up', {
          event: event,
          key: key
        });
      });

      _defineProperty(this, "stop", function () {
        document.removeEventListener('keydown', _this.keydown);
        document.removeEventListener('keyup', _this.reset);
        window.removeEventListener('blur', _this.reset);

        _this.reset();
      });

      _defineProperty(this, "reset", function () {
        return _this._currentValues.clear();
      });

      this.DS = DS;
      this._multiSelectMode = multiSelectMode; // @TODO: remove after deprecation

      this._multiSelectKeys = multiSelectKeys.map(function (key) {
        var deprecatedKeys = {
          ctrlKey: 'Control',
          shiftKey: 'Shift',
          metaKey: 'Meta'
        };
        /** @type {string} */

        var newName = deprecatedKeys[key];

        if (newName) {
          console.warn("[DragSelect] ".concat(key, " is deprecated. Use \"").concat(newName, "\" instead. Act Now!. See docs for more info"));
          return newName.toLowerCase();
        }

        return key.toLowerCase();
      });
      this.DS.subscribe('Interaction:init', this.init);
    }

    _createClass(KeyStore, [{
      key: "isMultiSelectKeyPressed",

      /** @param {KeyboardEvent|MouseEvent|TouchEvent} [event] */
      value: function isMultiSelectKeyPressed(event) {
        var _this2 = this;

        if (this._multiSelectMode) return true;
        if (this.currentValues.some(function (key) {
          return _this2._multiSelectKeys.includes(key);
        })) return true;
        if (event && this._multiSelectKeys.some(function (key) {
          return event[_this2._keyMapping[key]];
        })) return true;
        return false;
      }
    }, {
      key: "currentValues",
      get: function get() {
        return Array.from(this._currentValues.values());
      }
    }]);

    return KeyStore;
  }();

  var PointerStore = /*#__PURE__*/function () {
    /** @type {boolean} */
    // Pointer Positions within Area

    /**
     * @type {Vect2}
     * @private
     * */

    /**
     * @type {Vect2}
     * @private
     * */

    /**
     * @type {Vect2}
     * @private
     * */
    // General Pointer Position

    /**
     * @type {Vect2}
     * @private
     * */

    /**
     * @type {Vect2}
     * @private
     * */

    /**
     * @type {Vect2}
     * @private
     * */

    /**
     * @type {TouchEvent}
     * @private
     * */

    /**
     * @class PointerStore
     * @constructor PointerStore
     * @param {{DS:DragSelect}} p
     * @ignore
     */
    function PointerStore(_ref) {
      var _this = this;

      var DS = _ref.DS;

      _classCallCheck(this, PointerStore);

      _defineProperty(this, "_isMouseInteraction", false);

      _defineProperty(this, "_initialValArea", void 0);

      _defineProperty(this, "_currentValArea", void 0);

      _defineProperty(this, "_lastValArea", void 0);

      _defineProperty(this, "_initialVal", void 0);

      _defineProperty(this, "_currentVal", void 0);

      _defineProperty(this, "_lastVal", void 0);

      _defineProperty(this, "_lastTouch", void 0);

      _defineProperty(this, "init", function () {
        document.addEventListener('mousemove', _this.update);
        document.addEventListener('touchmove', _this.update, {
          // @ts-ignore
          passive: false
        });
      });

      _defineProperty(this, "getPointerPosition", function (event) {
        return getPointerPos({
          event: _this._normalizedEvent(event)
        });
      });

      _defineProperty(this, "update", function (event) {
        if (!event) return;

        _this.DS.publish('PointerStore:updated:pre', {
          event: event
        });

        _this.currentVal = _this.getPointerPosition(event);
        if (!_this._isMouseInteraction) return;

        _this.DS.publish('PointerStore:updated', {
          event: event
        });
      });

      _defineProperty(this, "stop", function () {
        document.removeEventListener('mousemove', _this.update);
        document.removeEventListener('touchmove', _this.update, {
          // @ts-ignore
          passive: false
        }); // debounce in order "onClick" to work

        setTimeout(function () {
          return _this._isMouseInteraction = false;
        }, 100);
      });

      _defineProperty(this, "reset", function (event) {
        if (!event) return;
        _this.currentVal = _this.lastVal = _this.getPointerPosition(event);

        _this.stop();

        _this.init();
      });

      this.DS = DS;
      this.DS.subscribe('Interaction:init', this.init);
      this.DS.subscribe('Interaction:start', function (_ref2) {
        var event = _ref2.event;
        return _this.start(event);
      });
      this.DS.subscribe('Interaction:end', function (_ref3) {
        var event = _ref3.event;
        return _this.reset(event);
      });
    }

    _createClass(PointerStore, [{
      key: "start",

      /** @param {DSEvent} [event] */
      value: function start(event) {
        if (!event) return;
        this._isMouseInteraction = true;
        this.currentVal = this.initialVal = this.getPointerPosition(event);
      }
      /** @param {DSEvent} event */

    }, {
      key: "_normalizedEvent",

      /**
       * @param {DSEvent} event
       * @return {MouseEvent|Touch}
       * @private
       */
      value: function _normalizedEvent(event) {
        // touchend has not touches. so we take the last touch if a touchevent, we need to store the positions
        if ('touches' in event && event.type !== 'touchend') this._lastTouch = event; // if a touchevent, return the last touch rather than the regular event
        // we need .touches[0] from that event instead

        return 'touches' in event ? this._lastTouch.touches[0] : event;
      }
      /** First recorded pointer position within the area */

    }, {
      key: "initialValArea",
      get: function get() {
        if (!this._initialValArea) return {
          x: 0,
          y: 0
        };
        return this._initialValArea;
      }
      /** Current pointer position within the area */

    }, {
      key: "currentValArea",
      get: function get() {
        if (!this._currentValArea) return {
          x: 0,
          y: 0
        };
        return this._currentValArea;
      }
      /** Last recorded pointer position within the area */

    }, {
      key: "lastValArea",
      get: function get() {
        if (!this._lastValArea) return {
          x: 0,
          y: 0
        };
        return this._lastValArea;
      }
      /** First recorded pointer position */

    }, {
      key: "initialVal",
      get: function get() {
        if (!this._initialVal) return {
          x: 0,
          y: 0
        };
        return this._initialVal;
      }
      /** Current pointer position */
      ,
      set: function set(value) {
        this._initialVal = value;
        this._initialValArea = value && calc(value, '-', calc(rect2vect(this.DS.Area.rect), '+', rect2vect(this.DS.Area.computedBorder)));
      }
    }, {
      key: "currentVal",
      get: function get() {
        if (!this._currentVal) return {
          x: 0,
          y: 0
        };
        return this._currentVal;
      }
      /** Last recorded pointer position */
      ,
      set: function set(value) {
        this._currentVal = value;
        this._currentValArea = value && calc(value, '-', calc(rect2vect(this.DS.Area.rect), '+', rect2vect(this.DS.Area.computedBorder)));
      }
    }, {
      key: "lastVal",
      get: function get() {
        if (!this._lastVal) return {
          x: 0,
          y: 0
        };
        return this._lastVal;
      },
      set: function set(value) {
        this._lastVal = value;
        this._lastValArea = value && calc(value, '-', calc(rect2vect(this.DS.Area.rect), '+', rect2vect(this.DS.Area.computedBorder)));
      }
    }]);

    return PointerStore;
  }();

  var ScrollStore = /*#__PURE__*/function () {
    /**
     * @type {Vect2}
     * @private */

    /**
     * @type {Vect2}
     * @private */

    /**
     * @type {DSArea}
     * @private */

    /**
     * @type {boolean}
     * @private */

    /**
     * @class ScrollStore
     * @constructor ScrollStore
     * @param {{ DS:DragSelect, areaElement: DSArea, zoom:number }} p
     * @ignore
     */
    function ScrollStore(_ref) {
      var _this = this;

      var DS = _ref.DS,
          areaElement = _ref.areaElement,
          zoom = _ref.zoom;

      _classCallCheck(this, ScrollStore);

      _defineProperty(this, "_initialVal", void 0);

      _defineProperty(this, "_currentVal", void 0);

      _defineProperty(this, "_areaElement", void 0);

      _defineProperty(this, "_canScroll", void 0);

      _defineProperty(this, "init", function () {
        return _this._areaElement.addEventListener('scroll', _this.update);
      });

      _defineProperty(this, "start", function () {
        _this._currentVal = _this._initialVal = getCurrentScroll(_this._areaElement);

        _this._areaElement.addEventListener('scroll', _this.update);
      });

      _defineProperty(this, "update", function () {
        return _this._currentVal = getCurrentScroll(_this._areaElement);
      });

      _defineProperty(this, "stop", function () {
        _this._areaElement.removeEventListener('scroll', _this.update);

        _this._initialVal = {
          x: 0,
          y: 0
        };
        _this._canScroll = null;
      });

      _defineProperty(this, "reset", function () {
        _this.stop();

        _this.start();
      });

      this._areaElement = areaElement;
      this.DS = DS;
      this.zoom = zoom;
      this.DS.subscribe('Interaction:init', this.init);
      this.DS.subscribe('Interaction:start', function () {
        return _this.start();
      });
      this.DS.subscribe('Interaction:end', function () {
        return _this.reset();
      });
    }

    _createClass(ScrollStore, [{
      key: "canScroll",
      get: function get() {
        if (typeof this._canScroll === 'boolean') return this._canScroll;
        return this._canScroll = canScroll(this._areaElement);
      }
    }, {
      key: "scrollAmount",
      get: function get() {
        var scrollDiff = calc(this.currentVal, '-', this.initialVal); // if area is zoomed, the scroll values are skewed, we need to fix that manually :(

        var zoom = num2vect(this.zoom);
        var zoomScroll = calc(calc(scrollDiff, '*', zoom), '-', scrollDiff);
        return {
          x: scrollDiff.x + zoomScroll.x,
          y: scrollDiff.y + zoomScroll.y
        };
      }
    }, {
      key: "initialVal",
      get: function get() {
        if (!this._initialVal) return {
          x: 0,
          y: 0
        };
        return this._initialVal;
      }
    }, {
      key: "currentVal",
      get: function get() {
        if (!this._currentVal) this._currentVal = getCurrentScroll(this._areaElement);
        return this._currentVal;
      }
    }]);

    return ScrollStore;
  }();

  //////////////////////////////////////////////////////////////////////////////////////

  var DragSelect = /*#__PURE__*/function () {
    /**
     * used to skip all current Selection and dragNdrop functionality
     * @type {boolean}
     */

    /**
     * @class DragSelect
     * @constructor DragSelect
     * @param {Settings} settings
     */
    function DragSelect(_ref) {
      var _this = this;

      var _ref$area = _ref.area,
          area = _ref$area === void 0 ? document : _ref$area,
          _ref$selectables = _ref.selectables,
          selectables = _ref$selectables === void 0 ? [] : _ref$selectables,
          _ref$autoScrollSpeed = _ref.autoScrollSpeed,
          autoScrollSpeed = _ref$autoScrollSpeed === void 0 ? 5 : _ref$autoScrollSpeed,
          _ref$overflowToleranc = _ref.overflowTolerance,
          overflowTolerance = _ref$overflowToleranc === void 0 ? {
        x: 25,
        y: 25
      } : _ref$overflowToleranc,
          _ref$zoom = _ref.zoom,
          zoom = _ref$zoom === void 0 ? 1 : _ref$zoom,
          _ref$customStyles = _ref.customStyles,
          customStyles = _ref$customStyles === void 0 ? false : _ref$customStyles,
          _ref$multiSelectMode = _ref.multiSelectMode,
          multiSelectMode = _ref$multiSelectMode === void 0 ? false : _ref$multiSelectMode,
          _ref$multiSelectToggl = _ref.multiSelectToggling,
          multiSelectToggling = _ref$multiSelectToggl === void 0 ? true : _ref$multiSelectToggl,
          _ref$multiSelectKeys = _ref.multiSelectKeys,
          multiSelectKeys = _ref$multiSelectKeys === void 0 ? ['Control', 'Shift', 'Meta'] : _ref$multiSelectKeys,
          _ref$selector = _ref.selector,
          selector = _ref$selector === void 0 ? undefined : _ref$selector,
          _ref$draggability = _ref.draggability,
          draggability = _ref$draggability === void 0 ? true : _ref$draggability,
          _ref$immediateDrag = _ref.immediateDrag,
          immediateDrag = _ref$immediateDrag === void 0 ? true : _ref$immediateDrag,
          _ref$keyboardDrag = _ref.keyboardDrag,
          keyboardDrag = _ref$keyboardDrag === void 0 ? true : _ref$keyboardDrag,
          dragKeys = _ref.dragKeys,
          _ref$keyboardDragSpee = _ref.keyboardDragSpeed,
          keyboardDragSpeed = _ref$keyboardDragSpee === void 0 ? 10 : _ref$keyboardDragSpee,
          _ref$useTransform = _ref.useTransform,
          useTransform = _ref$useTransform === void 0 ? true : _ref$useTransform,
          _ref$hoverClass = _ref.hoverClass,
          hoverClass = _ref$hoverClass === void 0 ? 'ds-hover' : _ref$hoverClass,
          _ref$selectableClass = _ref.selectableClass,
          selectableClass = _ref$selectableClass === void 0 ? 'ds-selectable' : _ref$selectableClass,
          _ref$selectedClass = _ref.selectedClass,
          selectedClass = _ref$selectedClass === void 0 ? 'ds-selected' : _ref$selectedClass,
          _ref$selectorClass = _ref.selectorClass,
          selectorClass = _ref$selectorClass === void 0 ? 'ds-selector' : _ref$selectorClass,
          _ref$selectorAreaClas = _ref.selectorAreaClass,
          selectorAreaClass = _ref$selectorAreaClas === void 0 ? 'ds-selector-area' : _ref$selectorAreaClas,
          callback = _ref.callback,
          onDragMove = _ref.onDragMove,
          onDragStartBegin = _ref.onDragStartBegin,
          onDragStart = _ref.onDragStart,
          onElementSelect = _ref.onElementSelect,
          onElementUnselect = _ref.onElementUnselect;

      _classCallCheck(this, DragSelect);

      _defineProperty(this, "continue", false);

      _defineProperty(this, "start", function () {
        _this.stopped = false;

        _this.Interaction.init();
      });

      _defineProperty(this, "break", function () {
        return _this["continue"] = true;
      });

      _defineProperty(this, "getSelection", function () {
        return _this.SelectedSet.elements;
      });

      _defineProperty(this, "getSelectables", function () {
        return _this.SelectableSet.elements;
      });

      _defineProperty(this, "getInitialCursorPosition", function () {
        return _this.stores.PointerStore.initialVal;
      });

      _defineProperty(this, "getCurrentCursorPosition", function () {
        return _this.stores.PointerStore.currentVal;
      });

      _defineProperty(this, "getPreviousCursorPosition", function () {
        return _this.stores.PointerStore.lastVal;
      });

      _defineProperty(this, "getInitialCursorPositionArea", function () {
        return _this.stores.PointerStore.initialValArea;
      });

      _defineProperty(this, "getCurrentCursorPositionArea", function () {
        return _this.stores.PointerStore.currentValArea;
      });

      _defineProperty(this, "getPreviousCursorPositionArea", function () {
        return _this.stores.PointerStore.lastValArea;
      });

      _defineProperty(this, "isMultiSelect", function (event) {
        return _this.stores.KeyStore.isMultiSelectKeyPressed(event);
      });

      _defineProperty(this, "isDragging", function () {
        return _this.Interaction.isDragging;
      });

      this.PubSub = new PubSub({
        DS: this
      });
      this.subscribe = this.PubSub.subscribe;
      this.unsubscribe = this.PubSub.unsubscribe;
      this.publish = this.PubSub.publish;

      this._callbacksTemp({
        callback: callback,
        onDragMove: onDragMove,
        onDragStart: onDragStart,
        onDragStartBegin: onDragStartBegin,
        onElementSelect: onElementSelect,
        onElementUnselect: onElementUnselect
      });

      this.stores = {
        PointerStore: new PointerStore({
          DS: this
        }),
        ScrollStore: new ScrollStore({
          DS: this,
          areaElement: area,
          zoom: zoom
        }),
        KeyStore: new KeyStore({
          DS: this,
          multiSelectKeys: multiSelectKeys,
          multiSelectMode: multiSelectMode
        })
      };
      this.Area = new Area({
        area: area,
        PS: this.PubSub,
        zoom: zoom
      });
      this.Selector = new Selector({
        DS: this,
        selector: selector,
        selectorClass: selectorClass,
        customStyles: customStyles
      });
      this.SelectorArea = new SelectorArea({
        DS: this,
        selectorAreaClass: selectorAreaClass,
        autoScrollSpeed: autoScrollSpeed,
        overflowTolerance: overflowTolerance
      });
      this.SelectableSet = new SelectableSet({
        elements: selectables,
        DS: this,
        className: selectableClass,
        hoverClassName: hoverClass,
        useTransform: useTransform,
        draggability: draggability
      });
      this.SelectedSet = new SelectedSet({
        DS: this,
        className: selectedClass
      });
      this.Selection = new Selection({
        DS: this,
        hoverClassName: hoverClass,
        multiSelectToggling: multiSelectToggling
      });
      this.Drag = new Drag({
        DS: this,
        draggability: draggability,
        useTransform: useTransform,
        keyboardDrag: keyboardDrag,
        dragKeys: Object.assign({
          up: ['ArrowUp'],
          down: ['ArrowDown'],
          left: ['ArrowLeft'],
          right: ['ArrowRight']
        }, dragKeys),
        zoom: zoom,
        keyboardDragSpeed: keyboardDragSpeed
      });
      this.Interaction = new Interaction({
        areaElement: area,
        DS: this,
        draggability: draggability,
        immediateDrag: immediateDrag,
        selectableClass: selectableClass
      }); // Subscriber Aliases

      subscriberAliases({
        subscribe: this.subscribe,
        publish: this.publish,
        SelectedSet: this.SelectedSet,
        Interaction: this.Interaction
      });
      this.subscribe('Interaction:end', function () {
        return _this["continue"] = false;
      });
      this.start();
    } // @TODO: remove after deprecation


    _createClass(DragSelect, [{
      key: "_callbacksTemp",
      value: function _callbacksTemp(_ref2) {
        var callback = _ref2.callback,
            onDragMove = _ref2.onDragMove,
            onDragStart = _ref2.onDragStart,
            onDragStartBegin = _ref2.onDragStartBegin,
            onElementSelect = _ref2.onElementSelect,
            onElementUnselect = _ref2.onElementUnselect;

        var warnMessage = function warnMessage(name, newName) {
          return console.warn("[DragSelect] ".concat(name, " is deprecated. Use DragSelect.subscribe(\"").concat(newName, "\", (callbackObject) => {}) instead. Act Now! See docs for more info"));
        };

        if (callback) {
          warnMessage('callback', 'callback');
          this.subscribe('callback', function (_ref3) {
            var items = _ref3.items,
                item = _ref3.item,
                event = _ref3.event;
            return callback(items, event);
          });
        }

        if (onDragMove) {
          warnMessage('onDragMove', 'dragmove');
          this.subscribe('dragmove', function (_ref4) {
            var items = _ref4.items,
                item = _ref4.item,
                event = _ref4.event;
            return onDragMove(event);
          });
        }

        if (onDragStart) {
          warnMessage('onDragStart', 'dragstart');
          this.subscribe('dragstart', function (_ref5) {
            var items = _ref5.items,
                item = _ref5.item,
                event = _ref5.event;
            return onDragStart(event);
          });
        }

        if (onDragStartBegin) {
          warnMessage('onDragStartBegin', 'dragstart');
          this.subscribe('dragstart', function (_ref6) {
            var items = _ref6.items,
                item = _ref6.item,
                event = _ref6.event;
            return onDragStartBegin(event);
          });
        }

        if (onElementSelect) {
          warnMessage('onElementSelect', 'elementselect');
          this.subscribe('elementselect', function (_ref7) {
            var items = _ref7.items,
                item = _ref7.item,
                event = _ref7.event;
            return onElementSelect(item, event);
          });
        }

        if (onElementUnselect) {
          warnMessage('onElementUnselect', 'elementunselect');
          this.subscribe('elementunselect', function (_ref8) {
            var items = _ref8.items,
                item = _ref8.item,
                event = _ref8.event;
            return onElementUnselect(item, event);
          });
        }
      } // Useful methods for the user
      //////////////////////////////////////////////////////////////////////////////////////

      /**
       * Initializes the functionality. Automatically triggered when created.
       * Also, reset the functionality after a teardown
       */

    }, {
      key: "stop",

      /**
       * Complete function teardown
       * Will teardown/stop the whole functionality
       * @param {boolean} [remove] - if elements should be removed.
       * @param {boolean} [fromSelection] - if elements should also be added/removed to the selection.
       * @param {boolean} [withCallback] - if elements should also be added/removed to the selection.
       */
      value: function stop() {
        var remove = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
        var fromSelection = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
        var withCallback = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
        if (withCallback) this.publish('callback', {
          items: this.getSelection()
        });
        this.Interaction.stop();
        this.Area.stop();
        this.Drag.stop();
        this.Selector.stop();
        this.SelectorArea.stop(remove);
        this.stores.KeyStore.stop();
        this.stores.PointerStore.stop();
        this.stores.ScrollStore.stop();
        if (remove) this.SelectableSet.clear();
        if (fromSelection) this.SelectedSet.clear();
        this.stopped = true;
      }
      /**
       * Utility to override DragSelect internal functionality:
       * Break will skip the selection or dragging functionality (until after the callback) but let everything continue to run.
       * Useful utility to write your own functionality/move/dragNdrop based on DragSelect pointer positions.
       */

    }, {
      key: "addSelection",

      /**
       * Adds several elements to the selection list also adds the specific classes and take into account all calculations.
       * Does not clear the selection, in contrary to .setSelection. Can add multiple elements at once
       * @param {DSInputElements} elements one or multiple elements
       * @param {boolean} [triggerCallback] - if callback should be called
       * @param {boolean} [dontAddToSelectables] - if element should not be added to the list of selectable elements
       * @return {DSElements} all selected elements
       */
      value: function addSelection(elements) {
        var triggerCallback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        var dontAddToSelectables = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
        this.SelectedSet.addAll(toArray(elements));
        if (!dontAddToSelectables) this.addSelectables(elements);
        if (triggerCallback) this.PubSub.publish('callback', {
          items: this.getSelection()
        });
        return this.getSelection();
      }
      /**
       * Removes specific elements from the selection
       * Multiple elements can be given at once, in contrary to unselect
       * @param {DSInputElements} elements one or multiple elements
       * @param {boolean} [triggerCallback] - if callback should be called
       * @param {boolean} [removeFromSelectables] - if element should be removed from the list of selectable elements
       * @return {DSElements} all selected elements
       */

    }, {
      key: "removeSelection",
      value: function removeSelection(elements) {
        var triggerCallback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        var removeFromSelectables = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
        this.SelectedSet.deleteAll(toArray(elements));
        if (removeFromSelectables) this.removeSelectables(elements);
        if (triggerCallback) this.PubSub.publish('callback', {
          items: this.getSelection()
        });
        return this.getSelection();
      }
      /**
       * Toggles specific elements from the selection:
       * If element is not in selection it will be added, if it is already selected, it will be removed.
       * Multiple elements can be given at once.
       * @param {DSInputElements} elements one or multiple elements
       * @param {boolean} [triggerCallback] - if callback should be called
       * @param {boolean} [alsoSelectables] - if element should not be added/removed to the list of selectable elements accordingly
       * @return {DSElements} all selected elements
       */

    }, {
      key: "toggleSelection",
      value: function toggleSelection(elements) {
        var _this2 = this;

        var triggerCallback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        var alsoSelectables = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
        toArray(elements).forEach(function (el) {
          return _this2.SelectedSet.has(el) ? _this2.removeSelection(elements, triggerCallback, alsoSelectables) : _this2.addSelection(elements, triggerCallback, alsoSelectables);
        });
        if (triggerCallback) this.PubSub.publish('callback', {
          items: this.getSelection()
        });
        return this.getSelection();
      }
      /**
       * Sets the current selected elements and optionally run the callback
       * By default, adds new elements also to the list of selectables
       * @param {DSInputElements} elements – dom elements
       * @param {boolean} [triggerCallback] - if callback should be called
       * @param {boolean} [dontAddToSelectables] - if element should not be added to the list of selectable elements
       * @return {DSElements}
       */

    }, {
      key: "setSelection",
      value: function setSelection(elements) {
        var triggerCallback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        var dontAddToSelectables = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
        this.clearSelection();
        this.addSelection(elements, triggerCallback, dontAddToSelectables);
        return this.getSelection();
      }
      /**
       * Unselect / Deselect all current selected Nodes
       * @param {boolean} [triggerCallback] - if callback should be called
       * @return {DSElements} this.selected, should be empty
       */

    }, {
      key: "clearSelection",
      value: function clearSelection() {
        var triggerCallback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
        this.SelectedSet.clear();
        if (triggerCallback) this.PubSub.publish('callback', {
          items: this.getSelection()
        });
        return this.getSelection();
      }
      /**
       * Add elements that can be selected. No node is added twice
       * @param {DSInputElements} elements dom element(s)
       * @param {boolean} [addToSelection] if elements should also be added to current selection
       * @return {DSInputElements} the added element(s)
       */

    }, {
      key: "addSelectables",
      value: function addSelectables(elements) {
        var addToSelection = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        var els = toArray(elements);
        this.SelectableSet.addAll(els);
        if (addToSelection) this.SelectedSet.addAll(els);
        return elements;
      }
      /**
       * Gets all nodes that can potentially be selected
       * @return {DSElements} this.selectables
       */

    }, {
      key: "setSelectables",

      /**
       * Sets all elements that can be selected.
       * Removes all current selectables (& their respective classes).
       * Adds the new set to the selectables set, thus replacing the original set.
       * @param {DSInputElements} elements – dom element(s)
       * @param {boolean} [removeFromSelection] if elements should also be removed from current selection
       * @param {boolean} [addToSelection] if elements should also be added to current selection
       * @return {DSInputElements} elements – the added element(s)
       */
      value: function setSelectables(elements) {
        var removeFromSelection = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        var addToSelection = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
        this.removeSelectables(elements, removeFromSelection);
        return this.addSelectables(elements, addToSelection);
      }
      /**
       * Remove elements from the elements that can be selected.
       * @param {DSInputElements} elements – dom element(s)
       * @param {boolean} [removeFromSelection] if elements should also be removed from current selection
       * @return {DSInputElements} the removed element(s)
       */

    }, {
      key: "removeSelectables",
      value: function removeSelectables(elements) {
        var removeFromSelection = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        this.SelectableSet.deleteAll(toArray(elements));
        if (removeFromSelection) this.removeSelection(elements);
        return elements;
      }
      /** The starting/initial position of the cursor/selector @return {Vect2} */

    }, {
      key: "getCursorPositionDifference",

      /**
       * Utility method that returns the cursor position difference between start and now
       * @param {boolean} [usePreviousCursorDifference] if true, it will output the cursor position difference between the previous selection and now
       * @param {boolean} [useAreaPositions] if true, it will use cursor positions relative to the area
       * @return {Vect2}
       * @deprecated
       */
      value: function getCursorPositionDifference() {
        var usePreviousCursorDifference = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
        var useAreaPositions = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        console.warn('[DragSelect] Using .getCursorPositionDifference is deprecated. Calculate yourself instead. i.e. `.getCurrentCursorPosition().x - .getInitialCursorPosition().x`');
        var posA = useAreaPositions ? this.getCurrentCursorPositionArea() : this.getCurrentCursorPosition();
        var posB = usePreviousCursorDifference ? useAreaPositions ? this.getPreviousCursorPositionArea() : this.getPreviousCursorPosition() : useAreaPositions ? this.getInitialCursorPositionArea() : this.getInitialCursorPosition();
        return calc(posA, '-', posB);
      }
      /**
       * Whether the user is currently drag n dropping elements (instead of selection)
       * @return {boolean}
       */

    }]);

    return DragSelect;
  }();

  return DragSelect;

})));


/***/ }),

/***/ "./node_modules/earcut/src/earcut.js":
/*!*******************************************!*\
  !*** ./node_modules/earcut/src/earcut.js ***!
  \*******************************************/
/***/ ((module) => {

"use strict";


module.exports = earcut;
module.exports["default"] = earcut;

function earcut(data, holeIndices, dim) {

    dim = dim || 2;

    var hasHoles = holeIndices && holeIndices.length,
        outerLen = hasHoles ? holeIndices[0] * dim : data.length,
        outerNode = linkedList(data, 0, outerLen, dim, true),
        triangles = [];

    if (!outerNode || outerNode.next === outerNode.prev) return triangles;

    var minX, minY, maxX, maxY, x, y, invSize;

    if (hasHoles) outerNode = eliminateHoles(data, holeIndices, outerNode, dim);

    // if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
    if (data.length > 80 * dim) {
        minX = maxX = data[0];
        minY = maxY = data[1];

        for (var i = dim; i < outerLen; i += dim) {
            x = data[i];
            y = data[i + 1];
            if (x < minX) minX = x;
            if (y < minY) minY = y;
            if (x > maxX) maxX = x;
            if (y > maxY) maxY = y;
        }

        // minX, minY and invSize are later used to transform coords into integers for z-order calculation
        invSize = Math.max(maxX - minX, maxY - minY);
        invSize = invSize !== 0 ? 1 / invSize : 0;
    }

    earcutLinked(outerNode, triangles, dim, minX, minY, invSize);

    return triangles;
}

// create a circular doubly linked list from polygon points in the specified winding order
function linkedList(data, start, end, dim, clockwise) {
    var i, last;

    if (clockwise === (signedArea(data, start, end, dim) > 0)) {
        for (i = start; i < end; i += dim) last = insertNode(i, data[i], data[i + 1], last);
    } else {
        for (i = end - dim; i >= start; i -= dim) last = insertNode(i, data[i], data[i + 1], last);
    }

    if (last && equals(last, last.next)) {
        removeNode(last);
        last = last.next;
    }

    return last;
}

// eliminate colinear or duplicate points
function filterPoints(start, end) {
    if (!start) return start;
    if (!end) end = start;

    var p = start,
        again;
    do {
        again = false;

        if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) {
            removeNode(p);
            p = end = p.prev;
            if (p === p.next) break;
            again = true;

        } else {
            p = p.next;
        }
    } while (again || p !== end);

    return end;
}

// main ear slicing loop which triangulates a polygon (given as a linked list)
function earcutLinked(ear, triangles, dim, minX, minY, invSize, pass) {
    if (!ear) return;

    // interlink polygon nodes in z-order
    if (!pass && invSize) indexCurve(ear, minX, minY, invSize);

    var stop = ear,
        prev, next;

    // iterate through ears, slicing them one by one
    while (ear.prev !== ear.next) {
        prev = ear.prev;
        next = ear.next;

        if (invSize ? isEarHashed(ear, minX, minY, invSize) : isEar(ear)) {
            // cut off the triangle
            triangles.push(prev.i / dim);
            triangles.push(ear.i / dim);
            triangles.push(next.i / dim);

            removeNode(ear);

            // skipping the next vertex leads to less sliver triangles
            ear = next.next;
            stop = next.next;

            continue;
        }

        ear = next;

        // if we looped through the whole remaining polygon and can't find any more ears
        if (ear === stop) {
            // try filtering points and slicing again
            if (!pass) {
                earcutLinked(filterPoints(ear), triangles, dim, minX, minY, invSize, 1);

            // if this didn't work, try curing all small self-intersections locally
            } else if (pass === 1) {
                ear = cureLocalIntersections(filterPoints(ear), triangles, dim);
                earcutLinked(ear, triangles, dim, minX, minY, invSize, 2);

            // as a last resort, try splitting the remaining polygon into two
            } else if (pass === 2) {
                splitEarcut(ear, triangles, dim, minX, minY, invSize);
            }

            break;
        }
    }
}

// check whether a polygon node forms a valid ear with adjacent nodes
function isEar(ear) {
    var a = ear.prev,
        b = ear,
        c = ear.next;

    if (area(a, b, c) >= 0) return false; // reflex, can't be an ear

    // now make sure we don't have other points inside the potential ear
    var p = ear.next.next;

    while (p !== ear.prev) {
        if (pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) &&
            area(p.prev, p, p.next) >= 0) return false;
        p = p.next;
    }

    return true;
}

function isEarHashed(ear, minX, minY, invSize) {
    var a = ear.prev,
        b = ear,
        c = ear.next;

    if (area(a, b, c) >= 0) return false; // reflex, can't be an ear

    // triangle bbox; min & max are calculated like this for speed
    var minTX = a.x < b.x ? (a.x < c.x ? a.x : c.x) : (b.x < c.x ? b.x : c.x),
        minTY = a.y < b.y ? (a.y < c.y ? a.y : c.y) : (b.y < c.y ? b.y : c.y),
        maxTX = a.x > b.x ? (a.x > c.x ? a.x : c.x) : (b.x > c.x ? b.x : c.x),
        maxTY = a.y > b.y ? (a.y > c.y ? a.y : c.y) : (b.y > c.y ? b.y : c.y);

    // z-order range for the current triangle bbox;
    var minZ = zOrder(minTX, minTY, minX, minY, invSize),
        maxZ = zOrder(maxTX, maxTY, minX, minY, invSize);

    var p = ear.prevZ,
        n = ear.nextZ;

    // look for points inside the triangle in both directions
    while (p && p.z >= minZ && n && n.z <= maxZ) {
        if (p !== ear.prev && p !== ear.next &&
            pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) &&
            area(p.prev, p, p.next) >= 0) return false;
        p = p.prevZ;

        if (n !== ear.prev && n !== ear.next &&
            pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) &&
            area(n.prev, n, n.next) >= 0) return false;
        n = n.nextZ;
    }

    // look for remaining points in decreasing z-order
    while (p && p.z >= minZ) {
        if (p !== ear.prev && p !== ear.next &&
            pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) &&
            area(p.prev, p, p.next) >= 0) return false;
        p = p.prevZ;
    }

    // look for remaining points in increasing z-order
    while (n && n.z <= maxZ) {
        if (n !== ear.prev && n !== ear.next &&
            pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) &&
            area(n.prev, n, n.next) >= 0) return false;
        n = n.nextZ;
    }

    return true;
}

// go through all polygon nodes and cure small local self-intersections
function cureLocalIntersections(start, triangles, dim) {
    var p = start;
    do {
        var a = p.prev,
            b = p.next.next;

        if (!equals(a, b) && intersects(a, p, p.next, b) && locallyInside(a, b) && locallyInside(b, a)) {

            triangles.push(a.i / dim);
            triangles.push(p.i / dim);
            triangles.push(b.i / dim);

            // remove two nodes involved
            removeNode(p);
            removeNode(p.next);

            p = start = b;
        }
        p = p.next;
    } while (p !== start);

    return filterPoints(p);
}

// try splitting polygon into two and triangulate them independently
function splitEarcut(start, triangles, dim, minX, minY, invSize) {
    // look for a valid diagonal that divides the polygon into two
    var a = start;
    do {
        var b = a.next.next;
        while (b !== a.prev) {
            if (a.i !== b.i && isValidDiagonal(a, b)) {
                // split the polygon in two by the diagonal
                var c = splitPolygon(a, b);

                // filter colinear points around the cuts
                a = filterPoints(a, a.next);
                c = filterPoints(c, c.next);

                // run earcut on each half
                earcutLinked(a, triangles, dim, minX, minY, invSize);
                earcutLinked(c, triangles, dim, minX, minY, invSize);
                return;
            }
            b = b.next;
        }
        a = a.next;
    } while (a !== start);
}

// link every hole into the outer loop, producing a single-ring polygon without holes
function eliminateHoles(data, holeIndices, outerNode, dim) {
    var queue = [],
        i, len, start, end, list;

    for (i = 0, len = holeIndices.length; i < len; i++) {
        start = holeIndices[i] * dim;
        end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
        list = linkedList(data, start, end, dim, false);
        if (list === list.next) list.steiner = true;
        queue.push(getLeftmost(list));
    }

    queue.sort(compareX);

    // process holes from left to right
    for (i = 0; i < queue.length; i++) {
        outerNode = eliminateHole(queue[i], outerNode);
        outerNode = filterPoints(outerNode, outerNode.next);
    }

    return outerNode;
}

function compareX(a, b) {
    return a.x - b.x;
}

// find a bridge between vertices that connects hole with an outer ring and and link it
function eliminateHole(hole, outerNode) {
    var bridge = findHoleBridge(hole, outerNode);
    if (!bridge) {
        return outerNode;
    }

    var bridgeReverse = splitPolygon(bridge, hole);

    // filter collinear points around the cuts
    var filteredBridge = filterPoints(bridge, bridge.next);
    filterPoints(bridgeReverse, bridgeReverse.next);

    // Check if input node was removed by the filtering
    return outerNode === bridge ? filteredBridge : outerNode;
}

// David Eberly's algorithm for finding a bridge between hole and outer polygon
function findHoleBridge(hole, outerNode) {
    var p = outerNode,
        hx = hole.x,
        hy = hole.y,
        qx = -Infinity,
        m;

    // find a segment intersected by a ray from the hole's leftmost point to the left;
    // segment's endpoint with lesser x will be potential connection point
    do {
        if (hy <= p.y && hy >= p.next.y && p.next.y !== p.y) {
            var x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y);
            if (x <= hx && x > qx) {
                qx = x;
                if (x === hx) {
                    if (hy === p.y) return p;
                    if (hy === p.next.y) return p.next;
                }
                m = p.x < p.next.x ? p : p.next;
            }
        }
        p = p.next;
    } while (p !== outerNode);

    if (!m) return null;

    if (hx === qx) return m; // hole touches outer segment; pick leftmost endpoint

    // look for points inside the triangle of hole point, segment intersection and endpoint;
    // if there are no points found, we have a valid connection;
    // otherwise choose the point of the minimum angle with the ray as connection point

    var stop = m,
        mx = m.x,
        my = m.y,
        tanMin = Infinity,
        tan;

    p = m;

    do {
        if (hx >= p.x && p.x >= mx && hx !== p.x &&
                pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) {

            tan = Math.abs(hy - p.y) / (hx - p.x); // tangential

            if (locallyInside(p, hole) &&
                (tan < tanMin || (tan === tanMin && (p.x > m.x || (p.x === m.x && sectorContainsSector(m, p)))))) {
                m = p;
                tanMin = tan;
            }
        }

        p = p.next;
    } while (p !== stop);

    return m;
}

// whether sector in vertex m contains sector in vertex p in the same coordinates
function sectorContainsSector(m, p) {
    return area(m.prev, m, p.prev) < 0 && area(p.next, m, m.next) < 0;
}

// interlink polygon nodes in z-order
function indexCurve(start, minX, minY, invSize) {
    var p = start;
    do {
        if (p.z === null) p.z = zOrder(p.x, p.y, minX, minY, invSize);
        p.prevZ = p.prev;
        p.nextZ = p.next;
        p = p.next;
    } while (p !== start);

    p.prevZ.nextZ = null;
    p.prevZ = null;

    sortLinked(p);
}

// Simon Tatham's linked list merge sort algorithm
// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
function sortLinked(list) {
    var i, p, q, e, tail, numMerges, pSize, qSize,
        inSize = 1;

    do {
        p = list;
        list = null;
        tail = null;
        numMerges = 0;

        while (p) {
            numMerges++;
            q = p;
            pSize = 0;
            for (i = 0; i < inSize; i++) {
                pSize++;
                q = q.nextZ;
                if (!q) break;
            }
            qSize = inSize;

            while (pSize > 0 || (qSize > 0 && q)) {

                if (pSize !== 0 && (qSize === 0 || !q || p.z <= q.z)) {
                    e = p;
                    p = p.nextZ;
                    pSize--;
                } else {
                    e = q;
                    q = q.nextZ;
                    qSize--;
                }

                if (tail) tail.nextZ = e;
                else list = e;

                e.prevZ = tail;
                tail = e;
            }

            p = q;
        }

        tail.nextZ = null;
        inSize *= 2;

    } while (numMerges > 1);

    return list;
}

// z-order of a point given coords and inverse of the longer side of data bbox
function zOrder(x, y, minX, minY, invSize) {
    // coords are transformed into non-negative 15-bit integer range
    x = 32767 * (x - minX) * invSize;
    y = 32767 * (y - minY) * invSize;

    x = (x | (x << 8)) & 0x00FF00FF;
    x = (x | (x << 4)) & 0x0F0F0F0F;
    x = (x | (x << 2)) & 0x33333333;
    x = (x | (x << 1)) & 0x55555555;

    y = (y | (y << 8)) & 0x00FF00FF;
    y = (y | (y << 4)) & 0x0F0F0F0F;
    y = (y | (y << 2)) & 0x33333333;
    y = (y | (y << 1)) & 0x55555555;

    return x | (y << 1);
}

// find the leftmost node of a polygon ring
function getLeftmost(start) {
    var p = start,
        leftmost = start;
    do {
        if (p.x < leftmost.x || (p.x === leftmost.x && p.y < leftmost.y)) leftmost = p;
        p = p.next;
    } while (p !== start);

    return leftmost;
}

// check if a point lies within a convex triangle
function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) {
    return (cx - px) * (ay - py) - (ax - px) * (cy - py) >= 0 &&
           (ax - px) * (by - py) - (bx - px) * (ay - py) >= 0 &&
           (bx - px) * (cy - py) - (cx - px) * (by - py) >= 0;
}

// check if a diagonal between two polygon nodes is valid (lies in polygon interior)
function isValidDiagonal(a, b) {
    return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && // dones't intersect other edges
           (locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b) && // locally visible
            (area(a.prev, a, b.prev) || area(a, b.prev, b)) || // does not create opposite-facing sectors
            equals(a, b) && area(a.prev, a, a.next) > 0 && area(b.prev, b, b.next) > 0); // special zero-length case
}

// signed area of a triangle
function area(p, q, r) {
    return (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y);
}

// check if two points are equal
function equals(p1, p2) {
    return p1.x === p2.x && p1.y === p2.y;
}

// check if two segments intersect
function intersects(p1, q1, p2, q2) {
    var o1 = sign(area(p1, q1, p2));
    var o2 = sign(area(p1, q1, q2));
    var o3 = sign(area(p2, q2, p1));
    var o4 = sign(area(p2, q2, q1));

    if (o1 !== o2 && o3 !== o4) return true; // general case

    if (o1 === 0 && onSegment(p1, p2, q1)) return true; // p1, q1 and p2 are collinear and p2 lies on p1q1
    if (o2 === 0 && onSegment(p1, q2, q1)) return true; // p1, q1 and q2 are collinear and q2 lies on p1q1
    if (o3 === 0 && onSegment(p2, p1, q2)) return true; // p2, q2 and p1 are collinear and p1 lies on p2q2
    if (o4 === 0 && onSegment(p2, q1, q2)) return true; // p2, q2 and q1 are collinear and q1 lies on p2q2

    return false;
}

// for collinear points p, q, r, check if point q lies on segment pr
function onSegment(p, q, r) {
    return q.x <= Math.max(p.x, r.x) && q.x >= Math.min(p.x, r.x) && q.y <= Math.max(p.y, r.y) && q.y >= Math.min(p.y, r.y);
}

function sign(num) {
    return num > 0 ? 1 : num < 0 ? -1 : 0;
}

// check if a polygon diagonal intersects any polygon segments
function intersectsPolygon(a, b) {
    var p = a;
    do {
        if (p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&
                intersects(p, p.next, a, b)) return true;
        p = p.next;
    } while (p !== a);

    return false;
}

// check if a polygon diagonal is locally inside the polygon
function locallyInside(a, b) {
    return area(a.prev, a, a.next) < 0 ?
        area(a, b, a.next) >= 0 && area(a, a.prev, b) >= 0 :
        area(a, b, a.prev) < 0 || area(a, a.next, b) < 0;
}

// check if the middle point of a polygon diagonal is inside the polygon
function middleInside(a, b) {
    var p = a,
        inside = false,
        px = (a.x + b.x) / 2,
        py = (a.y + b.y) / 2;
    do {
        if (((p.y > py) !== (p.next.y > py)) && p.next.y !== p.y &&
                (px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x))
            inside = !inside;
        p = p.next;
    } while (p !== a);

    return inside;
}

// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
// if one belongs to the outer ring and another to a hole, it merges it into a single ring
function splitPolygon(a, b) {
    var a2 = new Node(a.i, a.x, a.y),
        b2 = new Node(b.i, b.x, b.y),
        an = a.next,
        bp = b.prev;

    a.next = b;
    b.prev = a;

    a2.next = an;
    an.prev = a2;

    b2.next = a2;
    a2.prev = b2;

    bp.next = b2;
    b2.prev = bp;

    return b2;
}

// create a node and optionally link it with previous one (in a circular doubly linked list)
function insertNode(i, x, y, last) {
    var p = new Node(i, x, y);

    if (!last) {
        p.prev = p;
        p.next = p;

    } else {
        p.next = last.next;
        p.prev = last;
        last.next.prev = p;
        last.next = p;
    }
    return p;
}

function removeNode(p) {
    p.next.prev = p.prev;
    p.prev.next = p.next;

    if (p.prevZ) p.prevZ.nextZ = p.nextZ;
    if (p.nextZ) p.nextZ.prevZ = p.prevZ;
}

function Node(i, x, y) {
    // vertex index in coordinates array
    this.i = i;

    // vertex coordinates
    this.x = x;
    this.y = y;

    // previous and next vertex nodes in a polygon ring
    this.prev = null;
    this.next = null;

    // z-order curve value
    this.z = null;

    // previous and next nodes in z-order
    this.prevZ = null;
    this.nextZ = null;

    // indicates whether this is a steiner point
    this.steiner = false;
}

// return a percentage difference between the polygon area and its triangulation area;
// used to verify correctness of triangulation
earcut.deviation = function (data, holeIndices, dim, triangles) {
    var hasHoles = holeIndices && holeIndices.length;
    var outerLen = hasHoles ? holeIndices[0] * dim : data.length;

    var polygonArea = Math.abs(signedArea(data, 0, outerLen, dim));
    if (hasHoles) {
        for (var i = 0, len = holeIndices.length; i < len; i++) {
            var start = holeIndices[i] * dim;
            var end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
            polygonArea -= Math.abs(signedArea(data, start, end, dim));
        }
    }

    var trianglesArea = 0;
    for (i = 0; i < triangles.length; i += 3) {
        var a = triangles[i] * dim;
        var b = triangles[i + 1] * dim;
        var c = triangles[i + 2] * dim;
        trianglesArea += Math.abs(
            (data[a] - data[c]) * (data[b + 1] - data[a + 1]) -
            (data[a] - data[b]) * (data[c + 1] - data[a + 1]));
    }

    return polygonArea === 0 && trianglesArea === 0 ? 0 :
        Math.abs((trianglesArea - polygonArea) / polygonArea);
};

function signedArea(data, start, end, dim) {
    var sum = 0;
    for (var i = start, j = end - dim; i < end; i += dim) {
        sum += (data[j] - data[i]) * (data[i + 1] + data[j + 1]);
        j = i;
    }
    return sum;
}

// turn a polygon in a multi-dimensional array form (e.g. as in GeoJSON) into a form Earcut accepts
earcut.flatten = function (data) {
    var dim = data[0][0].length,
        result = {vertices: [], holes: [], dimensions: dim},
        holeIndex = 0;

    for (var i = 0; i < data.length; i++) {
        for (var j = 0; j < data[i].length; j++) {
            for (var d = 0; d < dim; d++) result.vertices.push(data[i][j][d]);
        }
        if (i > 0) {
            holeIndex += data[i - 1].length;
            result.holes.push(holeIndex);
        }
    }
    return result;
};


/***/ }),

/***/ "./node_modules/ieee754/index.js":
/*!***************************************!*\
  !*** ./node_modules/ieee754/index.js ***!
  \***************************************/
/***/ ((__unused_webpack_module, exports) => {

/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = ((value * c) - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}


/***/ }),

/***/ "./node_modules/immediate/lib/browser.js":
/*!***********************************************!*\
  !*** ./node_modules/immediate/lib/browser.js ***!
  \***********************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var Mutation = __webpack_require__.g.MutationObserver || __webpack_require__.g.WebKitMutationObserver;

var scheduleDrain;

{
  if (Mutation) {
    var called = 0;
    var observer = new Mutation(nextTick);
    var element = __webpack_require__.g.document.createTextNode('');
    observer.observe(element, {
      characterData: true
    });
    scheduleDrain = function () {
      element.data = (called = ++called % 2);
    };
  } else if (!__webpack_require__.g.setImmediate && typeof __webpack_require__.g.MessageChannel !== 'undefined') {
    var channel = new __webpack_require__.g.MessageChannel();
    channel.port1.onmessage = nextTick;
    scheduleDrain = function () {
      channel.port2.postMessage(0);
    };
  } else if ('document' in __webpack_require__.g && 'onreadystatechange' in __webpack_require__.g.document.createElement('script')) {
    scheduleDrain = function () {

      // Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
      // into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
      var scriptEl = __webpack_require__.g.document.createElement('script');
      scriptEl.onreadystatechange = function () {
        nextTick();

        scriptEl.onreadystatechange = null;
        scriptEl.parentNode.removeChild(scriptEl);
        scriptEl = null;
      };
      __webpack_require__.g.document.documentElement.appendChild(scriptEl);
    };
  } else {
    scheduleDrain = function () {
      setTimeout(nextTick, 0);
    };
  }
}

var draining;
var queue = [];
//named nextTick for less confusing stack traces
function nextTick() {
  draining = true;
  var i, oldQueue;
  var len = queue.length;
  while (len) {
    oldQueue = queue;
    queue = [];
    i = -1;
    while (++i < len) {
      oldQueue[i]();
    }
    len = queue.length;
  }
  draining = false;
}

module.exports = immediate;
function immediate(task) {
  if (queue.push(task) === 1 && !draining) {
    scheduleDrain();
  }
}


/***/ }),

/***/ "./node_modules/itowns/lib/Controls/FirstPersonControls.js":
/*!*****************************************************************!*\
  !*** ./node_modules/itowns/lib/Controls/FirstPersonControls.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _MainLoop = __webpack_require__(/*! ../Core/MainLoop */ "./node_modules/itowns/lib/Core/MainLoop.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

// Note: we could use existing three.js controls (like https://github.com/mrdoob/three.js/blob/dev/examples/js/controls/FirstPersonControls.js)
// but including these controls in itowns allows use to integrate them tightly with itowns.
// Especially the existing controls are expecting a continuous update loop while we have a pausable one (so our controls use .notifyChange when needed)
function limitRotation(camera3D, rot, verticalFOV) {
  // Limit vertical rotation (look up/down) to make sure the user cannot see
  // outside of the cone defined by verticalFOV
  var limit = THREE.MathUtils.degToRad(verticalFOV - camera3D.fov) * 0.5;
  return THREE.MathUtils.clamp(rot, -limit, limit);
}

var axisY = new THREE.Vector3(0, 1, 0);

function applyRotation(view, camera3D, state) {
  camera3D.quaternion.setFromUnitVectors(axisY, camera3D.up);
  camera3D.rotateY(state.rotateY);
  camera3D.rotateX(state.rotateX);
  view.notifyChange(view.camera.camera3D);
}

var MOVEMENTS = {
  38: {
    method: 'translateZ',
    sign: -1
  },
  // FORWARD: up key
  40: {
    method: 'translateZ',
    sign: 1
  },
  // BACKWARD: down key
  37: {
    method: 'translateX',
    sign: -1
  },
  // STRAFE_LEFT: left key
  39: {
    method: 'translateX',
    sign: 1
  },
  // STRAFE_RIGHT: right key
  33: {
    method: 'translateY',
    sign: 1
  },
  // UP: PageUp key
  34: {
    method: 'translateY',
    sign: -1
  } // DOWN: PageDown key

};

function moveCameraVerticalPlanar(value) {
  this.camera.position.z += value;
}

var normal = new THREE.Vector3();
var q = new THREE.Quaternion();
var e = new THREE.Euler(0, 0, 0, 'YXZ');

function moveCameraVerticalGlobe(value) {
  // compute geodesic normale
  normal.copy(this.camera.position);
  normal.normalize();
  this.camera.position.add(normal.multiplyScalar(value));
}

var FirstPersonControls = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(FirstPersonControls, _THREE$EventDispatche);

  var _super = _createSuper(FirstPersonControls);

  /**
   * @Constructor
   * @param {View} view
   * @param {object} options
   * @param {boolean} options.focusOnClick - whether or not to focus the renderer domElement on click
   * @param {boolean} options.focusOnMouseOver - whether or not to focus when the mouse is over the domElement
   * @param {boolean} options.moveSpeed - if > 0, pressing the arrow keys will move the camera
   * @param {number} options.verticalFOV - define the max visible vertical angle of the scene in degrees (default 180)
   * @param {number} options.panoramaRatio - alternative way to specify the max vertical angle when using a panorama.
   * You can specify the panorama width/height ratio and the verticalFOV will be computed automatically
   * @param {boolean} options.disableEventListeners - if true, the controls will not self listen to mouse/key events.
   * You'll have to manually forward the events to the appropriate functions: onMouseDown, onMouseMove, onMouseUp,
   * onKeyUp, onKeyDown and onMouseWheel.
   */
  function FirstPersonControls(view) {
    var _this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, FirstPersonControls);
    _this = _super.call(this);
    _this.isFirstPersonControls = true;
    _this.camera = view.camera.camera3D;
    _this.view = view;
    _this.moves = new Set();

    if (options.panoramaRatio) {
      var radius = options.panoramaRatio * 200 / (2 * Math.PI);
      options.verticalFOV = options.panoramaRatio == 2 ? 180 : THREE.MathUtils.radToDeg(2 * Math.atan(200 / (2 * radius)));
    }

    options.verticalFOV = options.verticalFOV || 180;
    options.moveSpeed = options.moveSpeed === undefined ? 10 : options.moveSpeed; // backward or forward move speed in m/s

    _this.options = options;
    _this._isMouseDown = false;
    _this._onMouseDownMouseX = 0;
    _this._onMouseDownMouseY = 0;
    _this._state = {
      rotateX: 0,
      rotateY: 0,
      snapshot: function snapshot() {
        return {
          rotateX: this.rotateX,
          rotateY: this.rotateY
        };
      }
    };

    _this.reset();

    _this.eventListeners = options.disableEventListeners;

    if (!options.disableEventListeners) {
      _this._onMouseDown = _this.onMouseDown.bind((0, _assertThisInitialized2["default"])(_this));
      _this._onMouseMove = _this.onMouseMove.bind((0, _assertThisInitialized2["default"])(_this));
      _this._onMouseUp = _this.onMouseUp.bind((0, _assertThisInitialized2["default"])(_this));
      _this._onMouseWheel = _this.onMouseWheel.bind((0, _assertThisInitialized2["default"])(_this));
      _this._onKeyUp = _this.onKeyUp.bind((0, _assertThisInitialized2["default"])(_this));
      _this._onKeyDown = _this.onKeyDown.bind((0, _assertThisInitialized2["default"])(_this));
      _this._onContextMenu = _this.onContextMenu.bind((0, _assertThisInitialized2["default"])(_this));
      view.domElement.addEventListener('mousedown', _this._onMouseDown, false);
      view.domElement.addEventListener('touchstart', _this._onMouseDown, false);
      view.domElement.addEventListener('mousemove', _this._onMouseMove, false);
      view.domElement.addEventListener('touchmove', _this._onMouseMove, false);
      view.domElement.addEventListener('mouseup', _this._onMouseUp, false);
      view.domElement.addEventListener('touchend', _this._onMouseUp, false);
      view.domElement.addEventListener('wheel', _this._onMouseWheel, false); // Disable context menu when right clicking.

      view.domElement.addEventListener('contextmenu', _this._onContextMenu, false); // TODO: Why windows

      document.addEventListener('keydown', _this._onKeyDown, false);
      document.addEventListener('keyup', _this._onKeyUp, false);
    }

    _this.view.addFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.AFTER_CAMERA_UPDATE, _this.update.bind((0, _assertThisInitialized2["default"])(_this))); // focus policy


    _this._onFocus = function () {
      return view.domElement.focus();
    };

    _this.focusOnMouseOver = options.focusOnMouseOver;

    if (options.focusOnMouseOver) {
      view.domElement.addEventListener('mouseover', _this._onFocus);
    }

    _this.focusOnClick = options.focusOnClick;

    if (options.focusOnClick) {
      view.domElement.addEventListener('click', _this._onFocus);
    }

    if (view.referenceCrs == 'EPSG:4978') {
      _this.moveCameraVertical = moveCameraVerticalGlobe;
    } else {
      _this.moveCameraVertical = moveCameraVerticalPlanar;
    }

    return _this;
  }

  (0, _createClass2["default"])(FirstPersonControls, [{
    key: "isUserInteracting",
    value: function isUserInteracting() {
      return this.moves.size !== 0 && !this._isMouseDown;
    }
    /**
     * Resets the controls internal state to match the camera' state.
     * This must be called when manually modifying the camera's position or rotation.
     * @param {boolean} preserveRotationOnX - if true, the look up/down rotation will
     * not be copied from the camera
     */

  }, {
    key: "reset",
    value: function reset() {
      var preserveRotationOnX = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      // Compute the correct init state, given the calculus in applyRotation:
      // cam.quaternion = q * r
      // => r = invert(q) * cam.quaterion
      // q is the quaternion derived from the up vector
      q.setFromUnitVectors(axisY, this.camera.up);
      q.invert();
      q.multiply(this.camera.quaternion); // tranform it to euler

      e.setFromQuaternion(q);

      if (!preserveRotationOnX) {
        this._state.rotateX = e.x;
      }

      this._state.rotateY = e.y;
    }
    /**
     * Updates the camera position / rotation based on occured input events.
     * This is done automatically when needed but can also be done if needed.
     * @param {number} dt - ellpased time since last update in seconds
     * @param {boolean} updateLoopRestarted - true if itowns' update loop just restarted
     * @param {boolean} force - set to true if you want to force the update, even if it
     * appears unneeded.
     */

  }, {
    key: "update",
    value: function update(dt, updateLoopRestarted, force) {
      if (this.enabled == false) {
        return;
      } // dt will not be relevant when we just started rendering, we consider a 1-frame move in this case


      if (updateLoopRestarted) {
        dt = 16;
      }

      var _iterator = _createForOfIteratorHelper(this.moves),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var move = _step.value;

          if (move.method === 'translateY') {
            this.moveCameraVertical(move.sign * this.options.moveSpeed * dt / 1000);
          } else {
            this.camera[move.method](move.sign * this.options.moveSpeed * dt / 1000);
          }
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      if (this._isMouseDown === true || force === true) {
        applyRotation(this.view, this.camera, this._state);
      }

      if (this.moves.size) {
        this.view.notifyChange(this.view.camera.camera3D);
      }
    } // Event callback functions
    // Mouse movement handling

  }, {
    key: "onMouseDown",
    value: function onMouseDown(event) {
      if (this.enabled == false) {
        return;
      } // next line is commented because, when I uncomment it, key binding doesn't work any more.
      // event.preventDefault();


      this._isMouseDown = true;
      var coords = this.view.eventToViewCoords(event);
      this._onMouseDownMouseX = coords.x;
      this._onMouseDownMouseY = coords.y;
      this._stateOnMouseDown = this._state.snapshot();
    }
  }, {
    key: "onMouseUp",
    value: function onMouseUp() {
      if (this.enabled == false) {
        return;
      }

      this._isMouseDown = false;
    }
  }, {
    key: "onMouseMove",
    value: function onMouseMove(event) {
      if (this.enabled == false) {
        return;
      }

      if (this._isMouseDown === true) {
        // in rigor we have tan(theta) = tan(cameraFOV) * deltaH / H
        // (where deltaH is the vertical amount we moved, and H the renderer height)
        // we loosely approximate tan(x) by x
        var pxToAngleRatio = THREE.MathUtils.degToRad(this.camera.fov) / this.view.mainLoop.gfxEngine.height;
        var coords = this.view.eventToViewCoords(event); // update state based on pointer movement

        this._state.rotateY = (coords.x - this._onMouseDownMouseX) * pxToAngleRatio + this._stateOnMouseDown.rotateY;
        this._state.rotateX = limitRotation(this.camera, (coords.y - this._onMouseDownMouseY) * pxToAngleRatio + this._stateOnMouseDown.rotateX, this.options.verticalFOV);
        applyRotation(this.view, this.camera, this._state);
      }
    } // Mouse wheel

  }, {
    key: "onMouseWheel",
    value: function onMouseWheel(event) {
      if (this.enabled == false) {
        return;
      }

      var delta = event.deltaY;
      this.camera.fov = THREE.MathUtils.clamp(this.camera.fov + Math.sign(delta), 10, Math.min(100, this.options.verticalFOV));
      this.camera.updateProjectionMatrix();
      this._state.rotateX = limitRotation(this.camera, this._state.rotateX, this.options.verticalFOV);
      applyRotation(this.view, this.camera, this._state);
    } // Keyboard handling

  }, {
    key: "onKeyUp",
    value: function onKeyUp(e) {
      if (this.enabled == false) {
        return;
      }

      var move = MOVEMENTS[e.keyCode];

      if (move) {
        this.moves["delete"](move);
        this.view.notifyChange(undefined, false);
        e.preventDefault();
      }
    }
  }, {
    key: "onKeyDown",
    value: function onKeyDown(e) {
      if (this.enabled == false) {
        return;
      }

      var move = MOVEMENTS[e.keyCode];

      if (move) {
        this.moves.add(move);
        this.view.notifyChange(undefined, false);
        e.preventDefault();
      }
    }
  }, {
    key: "onContextMenu",
    value: function onContextMenu(event) {
      event.preventDefault();
    }
  }, {
    key: "dispose",
    value: function dispose() {
      if (!this.eventListeners) {
        this.view.domElement.removeEventListener('mousedown', this._onMouseDown, false);
        this.view.domElement.removeEventListener('touchstart', this._onMouseDown, false);
        this.view.domElement.removeEventListener('mousemove', this._onMouseMove, false);
        this.view.domElement.removeEventListener('touchmove', this._onMouseMove, false);
        this.view.domElement.removeEventListener('mouseup', this._onMouseUp, false);
        this.view.domElement.removeEventListener('touchend', this._onMouseUp, false);
        this.view.domElement.removeEventListener('wheel', this._onMouseWheel, false);
        this.view.domElement.removeEventListener('contextmenu', this._onContextMenu, false);
        document.removeEventListener('keydown', this._onKeyDown, false);
        document.removeEventListener('keyup', this._onKeyUp, false);
      }

      if (this.focusOnMouseOver) {
        this.view.domElement.removeEventListener('mouseover', this._onFocus);
      }

      if (this.focusOnClick) {
        this.view.domElement.removeEventListener('click', this._onFocus);
      }

      this.dispatchEvent({
        type: 'dispose'
      });
    }
  }]);
  return FirstPersonControls;
}(THREE.EventDispatcher);

var _default = FirstPersonControls;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Controls/FlyControls.js":
/*!*********************************************************!*\
  !*** ./node_modules/itowns/lib/Controls/FlyControls.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _MainLoop = __webpack_require__(/*! ../Core/MainLoop */ "./node_modules/itowns/lib/Core/MainLoop.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var MOVEMENTS = {
  38: {
    method: 'translateZ',
    sign: -1
  },
  // FORWARD: up key
  40: {
    method: 'translateZ',
    sign: 1
  },
  // BACKWARD: down key
  37: {
    method: 'translateX',
    sign: -1
  },
  // STRAFE_LEFT: left key
  39: {
    method: 'translateX',
    sign: 1
  },
  // STRAFE_RIGHT: right key
  33: {
    method: 'rotateZ',
    sign: 1,
    noSpeed: true
  },
  // UP: PageUp key
  34: {
    method: 'rotateZ',
    sign: -1,
    noSpeed: true
  },
  // DOWN: PageDown key
  wheelup: {
    method: 'translateZ',
    sign: 1,
    oneshot: true
  },
  // WHEEL up
  wheeldown: {
    method: 'translateZ',
    sign: -1,
    oneshot: true
  } // WHEEL down

};

function onDocumentMouseDown(event) {
  event.preventDefault();
  this._isMouseDown = true;
  var coords = this.view.eventToViewCoords(event);
  this._onMouseDownMouseX = coords.x;
  this._onMouseDownMouseY = coords.y;
}

function onTouchStart(event) {
  event.preventDefault();
  this._isMouseDown = true;
  this._onMouseDownMouseX = event.touches[0].pageX;
  this._onMouseDownMouseY = event.touches[0].pageY;
}

function onPointerMove(event) {
  if (this._isMouseDown === true) {
    var coords = this.view.eventToViewCoords(event); // in rigor we have tan(theta) = tan(cameraFOV) * deltaH / H
    // (where deltaH is the vertical amount we moved, and H the renderer height)
    // we loosely approximate tan(x) by x

    var pxToAngleRatio = THREE.MathUtils.degToRad(this._camera3D.fov) / this.view.mainLoop.gfxEngine.height;

    this._camera3D.rotateY((coords.x - this._onMouseDownMouseX) * pxToAngleRatio);

    this._camera3D.rotateX((coords.y - this._onMouseDownMouseY) * pxToAngleRatio);

    this._onMouseDownMouseX = coords.x;
    this._onMouseDownMouseY = coords.y;
    this.view.notifyChange(this._camera3D, false);
  }
}

function onDocumentMouseUp() {
  this._isMouseDown = false;
}

function onKeyUp(e) {
  var move = MOVEMENTS[e.keyCode];

  if (move) {
    this.moves["delete"](move);
    e.preventDefault();
  }
}

function onKeyDown(e) {
  var move = MOVEMENTS[e.keyCode];

  if (move) {
    this.moves.add(move);
    this.view.notifyChange(this._camera3D, false);
    e.preventDefault();
  }
}

function onDocumentMouseWheel(event) {
  var delta = -event.deltaY;

  if (delta < 0) {
    this.moves.add(MOVEMENTS.wheelup);
  } else {
    this.moves.add(MOVEMENTS.wheeldown);
  }

  this.view.notifyChange(this._camera3D, false);
}
/**
 * First-Person controls (at least a possible declination of it).
 *
 * Bindings:
 * - up + down keys: forward/backward
 * - left + right keys: strafing movements
 * - PageUp + PageDown: roll movement
 * - mouse click+drag: pitch and yaw movements (as looking at a panorama, not as in FPS games for instance)
 */


var FlyControls = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(FlyControls, _THREE$EventDispatche);

  var _super = _createSuper(FlyControls);

  /**
   * @Constructor
   * @param {View} view
   * @param {object} options
   * @param {boolean} options.focusOnClick - whether or not to focus the renderer domElement on click
   * @param {boolean} options.focusOnMouseOver - whether or not to focus when the mouse is over the domElement
   */
  function FlyControls(view) {
    var _this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, FlyControls);
    _this = _super.call(this);
    _this.view = view;
    _this.options = options;
    _this._camera3D = view.camera.camera3D;
    _this.moves = new Set();
    _this.moveSpeed = 10; // backward or forward move speed in m/s

    _this._onMouseDownMouseX = 0;
    _this._onMouseDownMouseY = 0;
    _this._isMouseDown = false;
    view.domElement.addEventListener('mousedown', onDocumentMouseDown.bind((0, _assertThisInitialized2["default"])(_this)), false);
    view.domElement.addEventListener('touchstart', onTouchStart.bind((0, _assertThisInitialized2["default"])(_this)), false);
    var bindedPM = onPointerMove.bind((0, _assertThisInitialized2["default"])(_this));
    view.domElement.addEventListener('mousemove', bindedPM, false);
    view.domElement.addEventListener('touchmove', bindedPM, false);
    view.domElement.addEventListener('mouseup', onDocumentMouseUp.bind((0, _assertThisInitialized2["default"])(_this)), false);
    view.domElement.addEventListener('touchend', onDocumentMouseUp.bind((0, _assertThisInitialized2["default"])(_this)), false);
    view.domElement.addEventListener('wheel', onDocumentMouseWheel.bind((0, _assertThisInitialized2["default"])(_this)), false);
    view.domElement.addEventListener('keyup', onKeyUp.bind((0, _assertThisInitialized2["default"])(_this)), true);
    view.domElement.addEventListener('keydown', onKeyDown.bind((0, _assertThisInitialized2["default"])(_this)), true);

    _this.view.addFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.AFTER_CAMERA_UPDATE, _this.update.bind((0, _assertThisInitialized2["default"])(_this))); // focus policy


    if (options.focusOnMouseOver) {
      view.domElement.addEventListener('mouseover', function () {
        return view.domElement.focus();
      });
    }

    if (options.focusOnClick) {
      view.domElement.addEventListener('click', function () {
        return view.domElement.focus();
      });
    }

    return _this;
  }

  (0, _createClass2["default"])(FlyControls, [{
    key: "isUserInteracting",
    value: function isUserInteracting() {
      return this.moves.size !== 0 || this._isMouseDown;
    }
  }, {
    key: "update",
    value: function update(dt, updateLoopRestarted) {
      // if we are in a keypressed state, then update position
      // dt will not be relevant when we just started rendering, we consider a 1-frame move in this case
      if (updateLoopRestarted) {
        dt = 16;
      }

      var _iterator = _createForOfIteratorHelper(this.moves),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var _move = _step.value;

          this._camera3D[_move.method](_move.sign * (_move.noSpeed ? 1 : this.moveSpeed) * dt / 1000);
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      if (this.moves.size > 0 || this._isMouseDown) {
        this.view.notifyChange(this._camera3D);

        var _iterator2 = _createForOfIteratorHelper(this.moves),
            _step2;

        try {
          for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
            var move = _step2.value;

            if (move.oneshot) {
              this.moves["delete"](move);
            }
          }
        } catch (err) {
          _iterator2.e(err);
        } finally {
          _iterator2.f();
        }
      }
    }
  }]);
  return FlyControls;
}(THREE.EventDispatcher);

var _default = FlyControls;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Controls/GlobeControls.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Controls/GlobeControls.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.CONTROL_EVENTS = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _AnimationPlayer = _interopRequireDefault(__webpack_require__(/*! ../Core/AnimationPlayer */ "./node_modules/itowns/lib/Core/AnimationPlayer.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Ellipsoid = __webpack_require__(/*! ../Core/Math/Ellipsoid */ "./node_modules/itowns/lib/Core/Math/Ellipsoid.js");

var _CameraUtils = _interopRequireDefault(__webpack_require__(/*! ../Utils/CameraUtils */ "./node_modules/itowns/lib/Utils/CameraUtils.js"));

var _StateControl = _interopRequireDefault(__webpack_require__(/*! ./StateControl */ "./node_modules/itowns/lib/Controls/StateControl.js"));

var _View = __webpack_require__(/*! ../Core/View */ "./node_modules/itowns/lib/Core/View.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

// private members
var EPS = 0.000001;
var direction = {
  up: new THREE.Vector2(0, 1),
  bottom: new THREE.Vector2(0, -1),
  left: new THREE.Vector2(1, 0),
  right: new THREE.Vector2(-1, 0)
}; // Orbit

var rotateStart = new THREE.Vector2();
var rotateEnd = new THREE.Vector2();
var rotateDelta = new THREE.Vector2();
var spherical = new THREE.Spherical(1.0, 0.01, 0);
var sphericalDelta = new THREE.Spherical(1.0, 0, 0);
var orbitScale = 1.0; // Pan

var panStart = new THREE.Vector2();
var panEnd = new THREE.Vector2();
var panDelta = new THREE.Vector2();
var panOffset = new THREE.Vector3(); // Dolly

var dollyStart = new THREE.Vector2();
var dollyEnd = new THREE.Vector2();
var dollyDelta = new THREE.Vector2();
var dollyScale; // Globe move

var moveAroundGlobe = new THREE.Quaternion();
var cameraTarget = new THREE.Object3D();
var coordCameraTarget = new _Coordinates["default"]('EPSG:4978');
cameraTarget.matrixWorldInverse = new THREE.Matrix4();
var xyz = new _Coordinates["default"]('EPSG:4978', 0, 0, 0);
var c = new _Coordinates["default"]('EPSG:4326', 0, 0, 0); // Position object on globe

function positionObject(newPosition, object) {
  xyz.setFromVector3(newPosition).as('EPSG:4326', c);
  object.position.copy(newPosition);
  object.lookAt(c.geodesicNormal.add(newPosition));
  object.rotateX(Math.PI * 0.5);
  object.updateMatrixWorld(true);
} // Save the last time of mouse move for damping


var lastTimeMouseMove = 0; // Animations and damping

var enableAnimation = true;
var dampingFactorDefault = 0.25;
var dampingMove = new THREE.Quaternion(0, 0, 0, 1);
var durationDampingMove = 120;
var durationDampingOrbital = 60; // Pan Move

var panVector = new THREE.Vector3(); // Save last transformation

var lastPosition = new THREE.Vector3();
var lastQuaternion = new THREE.Quaternion(); // Tangent sphere to ellipsoid

var pickSphere = new THREE.Sphere();
var pickingPoint = new THREE.Vector3(); // Sphere intersection

var intersection = new THREE.Vector3(); // Set to true to enable target helper

var enableTargetHelper = false;
var helpers = {};

/**
 * Globe control pan event. Fires after camera pan
 * @event GlobeControls#pan-changed
 * @property target {GlobeControls} dispatched on controls
 * @property type {string} orientation-changed
 */

/**
 * Globe control orientation event. Fires when camera's orientation change
 * @event GlobeControls#orientation-changed
 * @property new {object}
 * @property new.tilt {number} the new value of the tilt of the camera
 * @property new.heading {number} the new value of the heading of the camera
 * @property previous {object}
 * @property previous.tilt {number} the previous value of the tilt of the camera
 * @property previous.heading {number} the previous value of the heading of the camera
 * @property target {GlobeControls} dispatched on controls
 * @property type {string} orientation-changed
 */

/**
 * Globe control range event. Fires when camera's range to target change
 * @event GlobeControls#range-changed
 * @property new {number} the new value of the range
 * @property previous {number} the previous value of the range
 * @property target {GlobeControls} dispatched on controls
 * @property type {string} range-changed
 */

/**
 * Globe control camera's target event. Fires when camera's target change
 * @event GlobeControls#camera-target-changed
 * @property new {object}
 * @property new {Coordinates} the new camera's target coordinates
 * @property previous {Coordinates} the previous camera's target coordinates
 * @property target {GlobeControls} dispatched on controls
 * @property type {string} camera-target-changed
 */

/**
 * globe controls events
 * @property PAN_CHANGED {string} Fires after camera pan
 * @property ORIENTATION_CHANGED {string} Fires when camera's orientation change
 * @property RANGE_CHANGED {string} Fires when camera's range to target change
 * @property CAMERA_TARGET_CHANGED {string} Fires when camera's target change
 */
var CONTROL_EVENTS = {
  PAN_CHANGED: 'pan-changed',
  ORIENTATION_CHANGED: 'orientation-changed',
  RANGE_CHANGED: 'range-changed',
  CAMERA_TARGET_CHANGED: 'camera-target-changed'
};
exports.CONTROL_EVENTS = CONTROL_EVENTS;
var quaterPano = new THREE.Quaternion();
var quaterAxis = new THREE.Quaternion();
var axisX = new THREE.Vector3(1, 0, 0);
var minDistanceZ = Infinity;
var lastNormalizedIntersection = new THREE.Vector3();
var normalizedIntersection = new THREE.Vector3();
var raycaster = new THREE.Raycaster();
var targetPosition = new THREE.Vector3();
var pickedPosition = new THREE.Vector3();
var sphereCamera = new THREE.Sphere();
var previous;
/**
 * GlobeControls is a camera controller
 *
 * @class      GlobeControls
 * @param      {GlobeView}  view the view where the control will be used
 * @param      {CameraTransformOptions|Extent} placement   the {@link CameraTransformOptions} to apply to view's camera
 * or the extent it must display at initialisation, see {@link CameraTransformOptions} in {@link CameraUtils}.
 * @param      {object}  options
 * @param      {number}  [options.zoomFactor=2] The factor the scale is multiplied by when dollying (zooming) in or
 * divided by when dollying out.
 * @param      {number}  options.rotateSpeed Speed camera rotation in orbit and panoramic mode
 * @param      {number}  options.minDistance Minimum distance between ground and camera
 * @param      {number}  options.maxDistance Maximum distance between ground and camera
 * @param      {bool}  options.handleCollision enable collision camera with ground
 * @property   {number} minDistance Minimum distance between ground and camera
 * @property   {number} maxDistance Maximum distance between ground and camera
 * @property   {number} zoomSpeed Speed zoom with mouse
 * @property   {number} rotateSpeed Speed camera rotation in orbit and panoramic mode
 * @property   {number} minDistanceCollision Minimum distance collision between ground and camera
 * @property   {boolean} enableDamping enable camera damping, if it's disabled the camera immediately when the mouse button is released.
 * If it's enabled, the camera movement is decelerate.
 */

var GlobeControls = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(GlobeControls, _THREE$EventDispatche);

  var _super = _createSuper(GlobeControls);

  function GlobeControls(view, placement) {
    var _this;

    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    (0, _classCallCheck2["default"])(this, GlobeControls);
    _this = _super.call(this);
    _this.player = new _AnimationPlayer["default"]();
    _this.view = view;
    _this.camera = view.camera.camera3D; // State control

    _this.states = new _StateControl["default"](_this.view); // this.enabled property has moved to StateControl

    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'enabled', {
      get: function get() {
        return _this.states.enabled;
      },
      set: function set(value) {
        console.warn('GlobeControls.enabled property is deprecated. Use StateControl.enabled instead ' + '- which you can access with GlobeControls.states.enabled.');
        _this.states.enabled = value;
      }
    }); // These options actually enables dollying in and out; left as "zoom" for
    // backwards compatibility

    if (options.zoomSpeed) {
      console.warn('Controls zoomSpeed parameter is deprecated. Use zoomInFactor and zoomOutFactor instead.');
      options.zoomFactor = options.zoomFactor || options.zoomSpeed;
    }

    _this.zoomFactor = options.zoomFactor || 1.25; // Limits to how far you can dolly in and out ( PerspectiveCamera only )

    _this.minDistance = options.minDistance || 250;
    _this.maxDistance = options.maxDistance || _Ellipsoid.ellipsoidSizes.x * 8.0; // Limits to how far you can zoom in and out ( OrthographicCamera only )

    _this.minZoom = 0;
    _this.maxZoom = Infinity; // Set to true to disable this control

    _this.rotateSpeed = options.rotateSpeed || 0.25; // Set to true to disable this control

    _this.keyPanSpeed = 7.0; // pixels moved per arrow key push
    // How far you can orbit vertically, upper and lower limits.
    // Range is 0 to Math.PI radians.
    // TODO Warning minPolarAngle = 0.01 -> it isn't possible to be perpendicular on Globe

    _this.minPolarAngle = THREE.MathUtils.degToRad(0.5); // radians

    _this.maxPolarAngle = THREE.MathUtils.degToRad(86); // radians
    // How far you can orbit horizontally, upper and lower limits.
    // If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].

    _this.minAzimuthAngle = -Infinity; // radians

    _this.maxAzimuthAngle = Infinity; // radians
    // Set collision options

    _this.handleCollision = typeof options.handleCollision !== 'undefined' ? options.handleCollision : true;
    _this.minDistanceCollision = 60; // this.enableKeys property has moved to StateControl

    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'enableKeys', {
      get: function get() {
        return _this.states.enableKeys;
      },
      set: function set(value) {
        console.warn('GlobeControls.enableKeys property is deprecated. Use StateControl.enableKeys instead ' + '- which you can access with GlobeControls.states.enableKeys.');
        _this.states.enableKeys = value;
      }
    }); // Enable Damping

    _this.enableDamping = true;
    _this.dampingMoveFactor = options.dampingMoveFactor != undefined ? options.dampingMoveFactor : dampingFactorDefault;
    _this.startEvent = {
      type: 'start'
    };
    _this.endEvent = {
      type: 'end'
    }; // Update helper

    _this.updateHelper = enableTargetHelper ? function (position, helper) {
      positionObject(position, helper);
      view.notifyChange(_this.camera);
    } : function () {};
    _this._onEndingMove = null;
    _this._onTravel = _this.travel.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onTouchStart = _this.onTouchStart.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onTouchEnd = _this.onTouchEnd.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onTouchMove = _this.onTouchMove.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onStateChange = _this.onStateChange.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onRotation = _this.handleRotation.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onDrag = _this.handleDrag.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onDolly = _this.handleDolly.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onPan = _this.handlePan.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onPanoramic = _this.handlePanoramic.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onZoom = _this.handleZoom.bind((0, _assertThisInitialized2["default"])(_this));

    _this.states.addEventListener('state-changed', _this._onStateChange, false);

    _this.states.addEventListener(_this.states.ORBIT._event, _this._onRotation, false);

    _this.states.addEventListener(_this.states.MOVE_GLOBE._event, _this._onDrag, false);

    _this.states.addEventListener(_this.states.DOLLY._event, _this._onDolly, false);

    _this.states.addEventListener(_this.states.PAN._event, _this._onPan, false);

    _this.states.addEventListener(_this.states.PANORAMIC._event, _this._onPanoramic, false);

    _this.states.addEventListener('zoom', _this._onZoom, false);

    _this.view.domElement.addEventListener('touchstart', _this._onTouchStart, false);

    _this.view.domElement.addEventListener('touchend', _this._onTouchEnd, false);

    _this.view.domElement.addEventListener('touchmove', _this._onTouchMove, false);

    _this.states.addEventListener(_this.states.TRAVEL_IN._event, _this._onTravel, false);

    _this.states.addEventListener(_this.states.TRAVEL_OUT._event, _this._onTravel, false);

    view.scene.add(cameraTarget);

    if (enableTargetHelper) {
      cameraTarget.add(helpers.target);
      view.scene.add(helpers.picking);
      var layerTHREEjs = view.mainLoop.gfxEngine.getUniqueThreejsLayer();
      helpers.target.layers.set(layerTHREEjs);
      helpers.picking.layers.set(layerTHREEjs);

      _this.camera.layers.enable(layerTHREEjs);
    }

    if (placement.isExtent) {
      placement.center().as('EPSG:4978', xyz);
    } else {
      placement.coord.as('EPSG:4978', xyz);
      placement.tilt = placement.tilt || 89.5;
      placement.heading = placement.heading || 0;
    }

    positionObject(xyz, cameraTarget);

    _this.lookAtCoordinate(placement, false);

    coordCameraTarget.crs = _this.view.referenceCrs;
    return _this;
  }

  (0, _createClass2["default"])(GlobeControls, [{
    key: "dollyInScale",
    get: function get() {
      return this.zoomFactor;
    }
  }, {
    key: "dollyOutScale",
    get: function get() {
      return 1 / this.zoomFactor;
    }
  }, {
    key: "isPaused",
    get: function get() {
      // TODO : also check if CameraUtils is performing an animation
      return this.states.currentState === this.states.NONE && !this.player.isPlaying();
    }
  }, {
    key: "onEndingMove",
    value: function onEndingMove(current) {
      if (this._onEndingMove) {
        this.player.removeEventListener('animation-stopped', this._onEndingMove);
        this._onEndingMove = null;
      }

      this.handlingEvent(current);
    }
  }, {
    key: "rotateLeft",
    value: function rotateLeft() {
      var angle = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
      sphericalDelta.theta -= angle;
    }
  }, {
    key: "rotateUp",
    value: function rotateUp() {
      var angle = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
      sphericalDelta.phi -= angle;
    } // pass in distance in world space to move left

  }, {
    key: "panLeft",
    value: function panLeft(distance) {
      var te = this.camera.matrix.elements; // get X column of matrix

      panOffset.fromArray(te);
      panOffset.multiplyScalar(-distance);
      panVector.add(panOffset);
    } // pass in distance in world space to move up

  }, {
    key: "panUp",
    value: function panUp(distance) {
      var te = this.camera.matrix.elements; // get Y column of matrix

      panOffset.fromArray(te, 4);
      panOffset.multiplyScalar(distance);
      panVector.add(panOffset);
    } // pass in x,y of change desired in pixel space,
    // right and down are positive

  }, {
    key: "mouseToPan",
    value: function mouseToPan(deltaX, deltaY) {
      var gfx = this.view.mainLoop.gfxEngine;

      if (this.camera.isPerspectiveCamera) {
        var targetDistance = this.camera.position.distanceTo(this.getCameraTargetPosition()); // half of the fov is center to top of screen

        targetDistance *= 2 * Math.tan(THREE.MathUtils.degToRad(this.camera.fov * 0.5)); // we actually don't use screenWidth, since perspective camera is fixed to screen height

        this.panLeft(deltaX * targetDistance / gfx.width * this.camera.aspect);
        this.panUp(deltaY * targetDistance / gfx.height);
      } else if (this.camera.isOrthographicCamera) {
        // orthographic
        this.panLeft(deltaX * (this.camera.right - this.camera.left) / gfx.width);
        this.panUp(deltaY * (this.camera.top - this.camera.bottom) / gfx.height);
      }
    }
  }, {
    key: "dolly",
    value: function dolly(delta) {
      if (delta === 0) {
        return;
      }

      dollyScale = delta > 0 ? this.dollyInScale : this.dollyOutScale;

      if (this.camera.isPerspectiveCamera) {
        orbitScale /= dollyScale;
      } else if (this.camera.isOrthographicCamera) {
        this.camera.zoom = THREE.MathUtils.clamp(this.camera.zoom * dollyScale, this.minZoom, this.maxZoom);
        this.camera.updateProjectionMatrix();
        this.view.notifyChange(this.camera);
      }
    }
  }, {
    key: "getMinDistanceCameraBoundingSphereObbsUp",
    value: function getMinDistanceCameraBoundingSphereObbsUp(tile) {
      if (tile.level > 10 && tile.children.length == 1 && tile.geometry) {
        var obb = tile.obb;
        sphereCamera.center.copy(this.camera.position);
        sphereCamera.radius = this.minDistanceCollision;

        if (obb.isSphereAboveXYBox(sphereCamera)) {
          minDistanceZ = Math.min(sphereCamera.center.z - obb.box3D.max.z, minDistanceZ);
        }
      }
    }
  }, {
    key: "update",
    value: function update() {
      var _this2 = this;

      var state = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.states.currentState;
      // We compute distance between camera's bounding sphere and geometry's obb up face
      minDistanceZ = Infinity;

      if (this.handleCollision) {
        // We check distance to the ground/surface geometry
        // add minDistanceZ between camera's bounding and tiles's oriented bounding box (up face only)
        // Depending on the distance of the camera with obbs, we add a slowdown or constrain to the movement.
        // this constraint or deceleration is suitable for two types of movement MOVE_GLOBE and ORBIT.
        // This constraint or deceleration inversely proportional to the camera/obb distance
        if (this.view.tileLayer) {
          var _iterator = _createForOfIteratorHelper(this.view.tileLayer.level0Nodes),
              _step;

          try {
            for (_iterator.s(); !(_step = _iterator.n()).done;) {
              var tile = _step.value;
              tile.traverse(this.getMinDistanceCameraBoundingSphereObbsUp.bind(this));
            }
          } catch (err) {
            _iterator.e(err);
          } finally {
            _iterator.f();
          }
        }
      }

      switch (state) {
        // MOVE_GLOBE Rotate globe with mouse
        case this.states.MOVE_GLOBE:
          if (minDistanceZ < 0) {
            cameraTarget.translateY(-minDistanceZ);
            this.camera.position.setLength(this.camera.position.length() - minDistanceZ);
          } else if (minDistanceZ < this.minDistanceCollision) {
            var translate = this.minDistanceCollision * (1.0 - minDistanceZ / this.minDistanceCollision);
            cameraTarget.translateY(translate);
            this.camera.position.setLength(this.camera.position.length() + translate);
          }

          lastNormalizedIntersection.copy(normalizedIntersection).applyQuaternion(moveAroundGlobe);
          cameraTarget.position.applyQuaternion(moveAroundGlobe);
          this.camera.position.applyQuaternion(moveAroundGlobe);
          break;
        // PAN Move camera in projection plan

        case this.states.PAN:
          this.camera.position.add(panVector);
          cameraTarget.position.add(panVector);
          break;
        // PANORAMIC Move target camera

        case this.states.PANORAMIC:
          {
            this.camera.worldToLocal(cameraTarget.position);
            var normal = this.camera.position.clone().normalize().applyQuaternion(this.camera.quaternion.clone().invert());
            quaterPano.setFromAxisAngle(normal, sphericalDelta.theta).multiply(quaterAxis.setFromAxisAngle(axisX, sphericalDelta.phi));
            cameraTarget.position.applyQuaternion(quaterPano);
            this.camera.localToWorld(cameraTarget.position);
            break;
          }
        // ZOOM/ORBIT Move Camera around the target camera

        default:
          {
            // get camera position in local space of target
            this.camera.position.applyMatrix4(cameraTarget.matrixWorldInverse); // angle from z-axis around y-axis

            if (sphericalDelta.theta || sphericalDelta.phi) {
              spherical.setFromVector3(this.camera.position);
            } // far underground


            var dynamicRadius = spherical.radius * Math.sin(this.minPolarAngle);
            var slowdownLimit = dynamicRadius * 8;
            var contraryLimit = dynamicRadius * 2;
            var minContraintPhi = -0.01;

            if (this.handleCollision) {
              if (minDistanceZ < slowdownLimit && minDistanceZ > contraryLimit && sphericalDelta.phi > 0) {
                // slowdown zone : slowdown sphericalDelta.phi
                var slowdownZone = slowdownLimit - contraryLimit; // the deeper the camera is in this zone, the bigger the factor is

                var slowdownFactor = 1 - (slowdownZone - (minDistanceZ - contraryLimit)) / slowdownZone; // apply slowdown factor on tilt mouvement

                sphericalDelta.phi *= slowdownFactor * slowdownFactor;
              } else if (minDistanceZ < contraryLimit && minDistanceZ > -contraryLimit && sphericalDelta.phi > minContraintPhi) {
                // contraint zone : contraint sphericalDelta.phi
                // calculation of the angle of rotation which allows to leave this zone
                var contraryPhi = -Math.asin((contraryLimit - minDistanceZ) * 0.25 / spherical.radius); // clamp contraryPhi to make a less brutal exit

                contraryPhi = THREE.MathUtils.clamp(contraryPhi, minContraintPhi, 0); // the deeper the camera is in this zone, the bigger the factor is

                var contraryFactor = 1 - (contraryLimit - minDistanceZ) / (2 * contraryLimit);
                sphericalDelta.phi = THREE.MathUtils.lerp(sphericalDelta.phi, contraryPhi, contraryFactor);
                minDistanceZ -= Math.sin(sphericalDelta.phi) * spherical.radius;
              }
            }

            spherical.theta += sphericalDelta.theta;
            spherical.phi += sphericalDelta.phi; // restrict spherical.theta to be between desired limits

            spherical.theta = Math.max(this.minAzimuthAngle, Math.min(this.maxAzimuthAngle, spherical.theta)); // restrict spherical.phi to be between desired limits

            spherical.phi = Math.max(this.minPolarAngle, Math.min(this.maxPolarAngle, spherical.phi));
            spherical.radius = this.camera.position.length() * orbitScale; // restrict spherical.phi to be betwee EPS and PI-EPS

            spherical.makeSafe(); // restrict radius to be between desired limits

            spherical.radius = Math.max(this.minDistance, Math.min(this.maxDistance, spherical.radius));
            this.camera.position.setFromSpherical(spherical); // if camera is underground, so move up camera

            if (minDistanceZ < 0) {
              this.camera.position.y -= minDistanceZ;
              spherical.setFromVector3(this.camera.position);
              sphericalDelta.phi = 0;
            }

            cameraTarget.localToWorld(this.camera.position);
          }
      }

      this.camera.up.copy(cameraTarget.position).normalize();
      this.camera.lookAt(cameraTarget.position);

      if (!this.enableDamping) {
        sphericalDelta.theta = 0;
        sphericalDelta.phi = 0;
        moveAroundGlobe.set(0, 0, 0, 1);
      } else {
        sphericalDelta.theta *= 1 - dampingFactorDefault;
        sphericalDelta.phi *= 1 - dampingFactorDefault;
        moveAroundGlobe.slerp(dampingMove, this.dampingMoveFactor * 0.2);
      }

      orbitScale = 1;
      panVector.set(0, 0, 0); // update condition is:
      // min(camera displacement, camera rotation in radians)^2 > EPS
      // using small-angle approximation cos(x/2) = 1 - x^2 / 8

      if (lastPosition.distanceToSquared(this.camera.position) > EPS || 8 * (1 - lastQuaternion.dot(this.camera.quaternion)) > EPS) {
        this.view.notifyChange(this.camera);
        lastPosition.copy(this.camera.position);
        lastQuaternion.copy(this.camera.quaternion);
      } // Launch animationdamping if mouse stops these movements


      if (this.enableDamping && state === this.states.ORBIT && this.player.isStopped() && (sphericalDelta.theta > EPS || sphericalDelta.phi > EPS)) {
        this.player.setCallback(function () {
          _this2.update(_this2.states.ORBIT);
        });
        this.player.playLater(durationDampingOrbital, 2);
      }

      this.view.dispatchEvent({
        type: _View.VIEW_EVENTS.CAMERA_MOVED,
        coord: coordCameraTarget.setFromVector3(cameraTarget.position),
        range: spherical.radius,
        heading: -THREE.MathUtils.radToDeg(spherical.theta),
        tilt: 90 - THREE.MathUtils.radToDeg(spherical.phi)
      });
    }
  }, {
    key: "onStateChange",
    value: function onStateChange(event) {
      // If the state changed to NONE, end the movement associated to the previous state.
      if (this.states.currentState === this.states.NONE) {
        this.handleEndMovement(event);
        return;
      } // Stop CameraUtils ongoing animations, which can for instance be triggered with `this.travel` or
      // `this.lookAtCoordinate` methods.


      _CameraUtils["default"].stop(this.view, this.camera); // Dispatch events which specify if changes occurred in camera transform options.


      this.onEndingMove(); // Stop eventual damping movement.

      this.player.stop(); // Update camera transform options.

      this.updateTarget();
      previous = _CameraUtils["default"].getTransformCameraLookingAtTarget(this.view, this.camera, pickedPosition); // Initialize rotation and panoramic movements.

      rotateStart.copy(event.viewCoords); // Initialize drag movement.

      if (this.view.getPickingPositionFromDepth(event.viewCoords, pickingPoint)) {
        pickSphere.radius = pickingPoint.length();
        lastNormalizedIntersection.copy(pickingPoint).normalize();
        this.updateHelper(pickingPoint, helpers.picking);
      } // Initialize dolly movement.


      dollyStart.copy(event.viewCoords); // Initialize pan movement.

      panStart.copy(event.viewCoords);
    }
  }, {
    key: "handleRotation",
    value: function handleRotation(event) {
      // Stop player if needed. Player can be playing while moving mouse in the case of rotation. This is due to the
      // fact that a damping move can occur while rotating (without the need of releasing the mouse button)
      this.player.stop();
      this.handlePanoramic(event);
    }
  }, {
    key: "handleDrag",
    value: function handleDrag(event) {
      var normalized = this.view.viewToNormalizedCoords(event.viewCoords); // An updateMatrixWorld on the camera prevents camera jittering when moving globe on a zoomed out view, with
      // devtools open in web browser.

      this.camera.updateMatrixWorld();
      raycaster.setFromCamera(normalized, this.camera); // If there's intersection then move globe else we stop the move

      if (raycaster.ray.intersectSphere(pickSphere, intersection)) {
        normalizedIntersection.copy(intersection).normalize();
        moveAroundGlobe.setFromUnitVectors(normalizedIntersection, lastNormalizedIntersection);
        lastTimeMouseMove = Date.now();
        this.update();
      } else {
        this.states.onPointerUp();
      }
    }
  }, {
    key: "handleDolly",
    value: function handleDolly(event) {
      dollyEnd.copy(event.viewCoords);
      dollyDelta.subVectors(dollyEnd, dollyStart);
      this.dolly(-dollyDelta.y);
      dollyStart.copy(dollyEnd);
      this.update();
    }
  }, {
    key: "handlePan",
    value: function handlePan(event) {
      if (event.viewCoords) {
        panEnd.copy(event.viewCoords);
        panDelta.subVectors(panEnd, panStart);
        panStart.copy(panEnd);
      } else if (event.direction) {
        panDelta.copy(direction[event.direction]).multiplyScalar(this.keyPanSpeed);
      }

      this.mouseToPan(panDelta.x, panDelta.y);
      this.update(this.states.PAN);
    }
  }, {
    key: "handlePanoramic",
    value: function handlePanoramic(event) {
      rotateEnd.copy(event.viewCoords);
      rotateDelta.subVectors(rotateEnd, rotateStart);
      var gfx = this.view.mainLoop.gfxEngine;
      sphericalDelta.theta -= 2 * Math.PI * rotateDelta.x / gfx.width * this.rotateSpeed; // rotating up and down along whole screen attempts to go 360, but limited to 180

      sphericalDelta.phi -= 2 * Math.PI * rotateDelta.y / gfx.height * this.rotateSpeed;
      rotateStart.copy(rotateEnd);
      this.update();
    }
  }, {
    key: "handleEndMovement",
    value: function handleEndMovement() {
      var _this3 = this;

      var event = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      this.dispatchEvent(this.endEvent);
      this.player.stop(); // Launch damping movement for :
      //      * this.states.ORBIT
      //      * this.states.MOVE_GLOBE

      if (this.enableDamping) {
        if (event.previous === this.states.ORBIT && (sphericalDelta.theta > EPS || sphericalDelta.phi > EPS)) {
          this.player.setCallback(function () {
            _this3.update(_this3.states.ORBIT);
          });
          this.player.play(durationDampingOrbital);

          this._onEndingMove = function () {
            return _this3.onEndingMove();
          };

          this.player.addEventListener('animation-stopped', this._onEndingMove);
        } else if (event.previous === this.states.MOVE_GLOBE && Date.now() - lastTimeMouseMove < 50) {
          this.player.setCallback(function () {
            _this3.update(_this3.states.MOVE_GLOBE);
          }); // animation since mouse up event occurs less than 50ms after the last mouse move

          this.player.play(durationDampingMove);

          this._onEndingMove = function () {
            return _this3.onEndingMove();
          };

          this.player.addEventListener('animation-stopped', this._onEndingMove);
        } else {
          this.onEndingMove();
        }
      } else {
        this.onEndingMove();
      }
    }
  }, {
    key: "updateTarget",
    value: function updateTarget() {
      // Check if the middle of the screen is on the globe (to prevent having a dark-screen bug if outside the globe)
      if (this.view.getPickingPositionFromDepth(null, pickedPosition)) {
        // Update camera's target position
        var distance = !isNaN(pickedPosition.x) ? this.camera.position.distanceTo(pickedPosition) : 100;
        targetPosition.set(0, 0, -distance);
        this.camera.localToWorld(targetPosition); // set new camera target on globe

        positionObject(targetPosition, cameraTarget);
        cameraTarget.matrixWorldInverse.copy(cameraTarget.matrixWorld).invert();
        targetPosition.copy(this.camera.position);
        targetPosition.applyMatrix4(cameraTarget.matrixWorldInverse);
        spherical.setFromVector3(targetPosition);
      }
    }
  }, {
    key: "handlingEvent",
    value: function handlingEvent(current) {
      current = current || _CameraUtils["default"].getTransformCameraLookingAtTarget(this.view, this.camera);

      var diff = _CameraUtils["default"].getDiffParams(previous, current);

      if (diff) {
        if (diff.range) {
          this.dispatchEvent({
            type: CONTROL_EVENTS.RANGE_CHANGED,
            previous: diff.range.previous,
            "new": diff.range["new"]
          });
        }

        if (diff.coord) {
          this.dispatchEvent({
            type: CONTROL_EVENTS.CAMERA_TARGET_CHANGED,
            previous: diff.coord.previous,
            "new": diff.coord["new"]
          });
        }

        if (diff.tilt || diff.heading) {
          var event = {
            type: CONTROL_EVENTS.ORIENTATION_CHANGED
          };

          if (diff.tilt) {
            event.previous = {
              tilt: diff.tilt.previous
            };
            event["new"] = {
              tilt: diff.tilt["new"]
            };
          }

          if (diff.heading) {
            event.previous = event.previous || {};
            event["new"] = event["new"] || {};
            event["new"].heading = diff.heading["new"];
            event.previous.heading = diff.heading.previous;
          }

          this.dispatchEvent(event);
        }
      }
    }
  }, {
    key: "travel",
    value: function travel(event) {
      this.player.stop();
      var point = this.view.getPickingPositionFromDepth(event.viewCoords);
      var range = this.getRange(point);

      if (point && range > this.minDistance) {
        return this.lookAtCoordinate({
          coord: new _Coordinates["default"]('EPSG:4978', point),
          range: range * (event.direction === 'out' ? 1 / 0.6 : 0.6),
          time: 1500
        });
      }
    }
  }, {
    key: "handleZoom",
    value: function handleZoom(event) {
      this.player.stop();

      _CameraUtils["default"].stop(this.view, this.camera);

      this.updateTarget();
      var delta = -event.delta;
      this.dolly(delta);
      var previousRange = this.getRange(pickedPosition);
      this.update();
      var newRange = this.getRange(pickedPosition);

      if (Math.abs(newRange - previousRange) / previousRange > 0.001) {
        this.dispatchEvent({
          type: CONTROL_EVENTS.RANGE_CHANGED,
          previous: previousRange,
          "new": newRange
        });
      }

      this.dispatchEvent(this.startEvent);
      this.dispatchEvent(this.endEvent);
    }
  }, {
    key: "onTouchStart",
    value: function onTouchStart(event) {
      // CameraUtils.stop(view);
      this.player.stop(); // TODO : this.states.enabled check should be removed when moving touch events management to StateControl

      if (this.states.enabled === false) {
        return;
      }

      this.state = this.states.touchToState(event.touches.length);
      this.updateTarget();

      if (this.state !== this.states.NONE) {
        switch (this.state) {
          case this.states.MOVE_GLOBE:
            {
              var coords = this.view.eventToViewCoords(event);

              if (this.view.getPickingPositionFromDepth(coords, pickingPoint)) {
                pickSphere.radius = pickingPoint.length();
                lastNormalizedIntersection.copy(pickingPoint).normalize();
                this.updateHelper(pickingPoint, helpers.picking);
              } else {
                this.state = this.states.NONE;
              }

              break;
            }

          case this.states.ORBIT:
          case this.states.DOLLY:
            {
              var x = event.touches[0].pageX;
              var y = event.touches[0].pageY;
              var dx = x - event.touches[1].pageX;
              var dy = y - event.touches[1].pageY;
              var distance = Math.sqrt(dx * dx + dy * dy);
              dollyStart.set(0, distance);
              rotateStart.set(x, y);
              break;
            }

          case this.states.PAN:
            panStart.set(event.touches[0].pageX, event.touches[0].pageY);
            break;

          default:
        }

        this.dispatchEvent(this.startEvent);
      }
    }
  }, {
    key: "onTouchMove",
    value: function onTouchMove(event) {
      if (this.player.isPlaying()) {
        this.player.stop();
      } // TODO : this.states.enabled check should be removed when moving touch events management to StateControl


      if (this.states.enabled === false) {
        return;
      }

      event.preventDefault();
      event.stopPropagation();

      switch (event.touches.length) {
        case this.states.MOVE_GLOBE.finger:
          {
            var coords = this.view.eventToViewCoords(event);
            var normalized = this.view.viewToNormalizedCoords(coords); // An updateMatrixWorld on the camera prevents camera jittering when moving globe on a zoomed out view, with
            // devtools open in web browser.

            this.camera.updateMatrixWorld();
            raycaster.setFromCamera(normalized, this.camera); // If there's intersection then move globe else we stop the move

            if (raycaster.ray.intersectSphere(pickSphere, intersection)) {
              normalizedIntersection.copy(intersection).normalize();
              moveAroundGlobe.setFromUnitVectors(normalizedIntersection, lastNormalizedIntersection);
              lastTimeMouseMove = Date.now();
            } else {
              this.onTouchEnd();
            }

            break;
          }

        case this.states.ORBIT.finger:
        case this.states.DOLLY.finger:
          {
            var gfx = this.view.mainLoop.gfxEngine;
            rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);
            rotateDelta.subVectors(rotateEnd, rotateStart); // rotating across whole screen goes 360 degrees around

            this.rotateLeft(2 * Math.PI * rotateDelta.x / gfx.width * this.rotateSpeed); // rotating up and down along whole screen attempts to go 360, but limited to 180

            this.rotateUp(2 * Math.PI * rotateDelta.y / gfx.height * this.rotateSpeed);
            rotateStart.copy(rotateEnd);
            var dx = event.touches[0].pageX - event.touches[1].pageX;
            var dy = event.touches[0].pageY - event.touches[1].pageY;
            var distance = Math.sqrt(dx * dx + dy * dy);
            dollyEnd.set(0, distance);
            dollyDelta.subVectors(dollyEnd, dollyStart);
            this.dolly(dollyDelta.y);
            dollyStart.copy(dollyEnd);
            break;
          }

        case this.states.PAN.finger:
          panEnd.set(event.touches[0].pageX, event.touches[0].pageY);
          panDelta.subVectors(panEnd, panStart);
          this.mouseToPan(panDelta.x, panDelta.y);
          panStart.copy(panEnd);
          break;

        default:
          this.state = this.states.NONE;
      }

      if (this.state !== this.states.NONE) {
        this.update(this.state);
      }
    }
  }, {
    key: "onTouchEnd",
    value: function onTouchEnd() {
      this.handleEndMovement({
        previous: this.state
      });
      this.state = this.states.NONE;
    }
  }, {
    key: "dispose",
    value: function dispose() {
      this.view.domElement.removeEventListener('touchstart', this._onTouchStart, false);
      this.view.domElement.removeEventListener('touchend', this._onTouchEnd, false);
      this.view.domElement.removeEventListener('touchmove', this._onTouchMove, false);
      this.states.dispose();
      this.states.removeEventListener('state-changed', this._onStateChange, false);
      this.states.removeEventListener(this.states.ORBIT._event, this._onRotation, false);
      this.states.removeEventListener(this.states.MOVE_GLOBE._event, this._onDrag, false);
      this.states.removeEventListener(this.states.DOLLY._event, this._onDolly, false);
      this.states.removeEventListener(this.states.PAN._event, this._onPan, false);
      this.states.removeEventListener(this.states.PANORAMIC._event, this._onPanoramic, false);
      this.states.removeEventListener('zoom', this._onZoom, false);
      this.states.removeEventListener(this.states.TRAVEL_IN._event, this._onTravel, false);
      this.states.removeEventListener(this.states.TRAVEL_OUT._event, this._onTravel, false);
      this.dispatchEvent({
        type: 'dispose'
      });
    }
    /**
     * Changes the tilt of the current camera, in degrees.
     * @param {number}  tilt
     * @param {boolean} isAnimated
     * @return {Promise<void>}
     */

  }, {
    key: "setTilt",
    value: function setTilt(tilt, isAnimated) {
      return this.lookAtCoordinate({
        tilt: tilt
      }, isAnimated);
    }
    /**
     * Changes the heading of the current camera, in degrees.
     * @param {number} heading
     * @param {boolean} isAnimated
     * @return {Promise<void>}
     */

  }, {
    key: "setHeading",
    value: function setHeading(heading, isAnimated) {
      return this.lookAtCoordinate({
        heading: heading
      }, isAnimated);
    }
    /**
     * Sets the "range": the distance in meters between the camera and the current central point on the screen.
     * @param {number} range
     * @param {boolean} isAnimated
     * @return {Promise<void>}
     */

  }, {
    key: "setRange",
    value: function setRange(range, isAnimated) {
      return this.lookAtCoordinate({
        range: range
      }, isAnimated);
    }
    /**
     * Returns the {@linkcode Coordinates} of the globe point targeted by the camera in EPSG:4978 projection. See {@linkcode Coordinates} for conversion
     * @return {THREE.Vector3} position
     */

  }, {
    key: "getCameraTargetPosition",
    value: function getCameraTargetPosition() {
      return cameraTarget.position;
    }
    /**
     * Returns the "range": the distance in meters between the camera and the current central point on the screen.
     * @param {THREE.Vector3} [position] - The position to consider as picked on
     * the ground.
     * @return {number} number
     */

  }, {
    key: "getRange",
    value: function getRange(position) {
      return _CameraUtils["default"].getTransformCameraLookingAtTarget(this.view, this.camera, position).range;
    }
    /**
     * Returns the tilt of the current camera in degrees.
     * @param {THREE.Vector3} [position] - The position to consider as picked on
     * the ground.
     * @return {number} The angle of the rotation in degrees.
     */

  }, {
    key: "getTilt",
    value: function getTilt(position) {
      return _CameraUtils["default"].getTransformCameraLookingAtTarget(this.view, this.camera, position).tilt;
    }
    /**
     * Returns the heading of the current camera in degrees.
     * @param {THREE.Vector3} [position] - The position to consider as picked on
     * the ground.
     * @return {number} The angle of the rotation in degrees.
     */

  }, {
    key: "getHeading",
    value: function getHeading(position) {
      return _CameraUtils["default"].getTransformCameraLookingAtTarget(this.view, this.camera, position).heading;
    }
    /**
     * Displaces the central point to a specific amount of pixels from its current position.
     * The view flies to the desired coordinate, i.e.is not teleported instantly. Note : The results can be strange in some cases, if ever possible, when e.g.the camera looks horizontally or if the displaced center would not pick the ground once displaced.
     * @param      {vector}  pVector  The vector
     * @return {Promise}
     */

  }, {
    key: "pan",
    value: function pan(pVector) {
      this.mouseToPan(pVector.x, pVector.y);
      this.update(this.states.PAN);
      return Promise.resolve();
    }
    /**
     * Returns the orientation angles of the current camera, in degrees.
     * @return {Array<number>}
     */

  }, {
    key: "getCameraOrientation",
    value: function getCameraOrientation() {
      this.view.getPickingPositionFromDepth(null, pickedPosition);
      return [this.getTilt(pickedPosition), this.getHeading(pickedPosition)];
    }
    /**
     * Returns the camera location projected on the ground in lat,lon. See {@linkcode Coordinates} for conversion.
     * @return {Coordinates} position
     */

  }, {
    key: "getCameraCoordinate",
    value: function getCameraCoordinate() {
      return new _Coordinates["default"]('EPSG:4978', this.camera.position).as('EPSG:4326');
    }
    /**
     * Returns the {@linkcode Coordinates} of the central point on screen in lat,lon. See {@linkcode Coordinates} for conversion.
     * @return {Coordinates} coordinate
     */

  }, {
    key: "getLookAtCoordinate",
    value: function getLookAtCoordinate() {
      return _CameraUtils["default"].getTransformCameraLookingAtTarget(this.view, this.camera).coord;
    }
    /**
     * Sets the animation enabled.
     * @param      {boolean}  enable  enable
     */

  }, {
    key: "setAnimationEnabled",
    value: function setAnimationEnabled(enable) {
      enableAnimation = enable;
    }
    /**
     * Determines if animation enabled.
     * @return     {boolean}  True if animation enabled, False otherwise.
     */

  }, {
    key: "isAnimationEnabled",
    value: function isAnimationEnabled() {
      return enableAnimation;
    }
    /**
     * Returns the actual zoom. The zoom will always be between the [getMinZoom(), getMaxZoom()].
     * @return     {number}  The zoom .
     */

  }, {
    key: "getZoom",
    value: function getZoom() {
      return this.view.tileLayer.computeTileZoomFromDistanceCamera(this.getRange(), this.view.camera);
    }
    /**
     * Sets the current zoom, which is an index in the logical scales predefined for the application.
     * The higher the zoom, the closer to the ground.
     * The zoom is always in the [getMinZoom(), getMaxZoom()] range.
     * @param      {number}  zoom    The zoom
     * @param      {boolean}  isAnimated  Indicates if animated
     * @return     {Promise}
     */

  }, {
    key: "setZoom",
    value: function setZoom(zoom, isAnimated) {
      return this.lookAtCoordinate({
        zoom: zoom
      }, isAnimated);
    }
    /**
     * Return the current zoom scale at the central point of the view.
     * This function compute the scale of a map
     * @param      {number}  pitch   Screen pitch, in millimeters ; 0.28 by default
     * @return     {number}  The zoom scale.
     *
     * @deprecated Use View#getScale instead.
     */

  }, {
    key: "getScale",
    value: function getScale(pitch)
    /* istanbul ignore next */
    {
      console.warn('Deprecated, use View#getScale instead.');
      return this.view.getScale(pitch);
    }
    /**
     * To convert the projection in meters on the globe of a number of pixels of screen
     * @param      {number} pixels count pixels to project
     * @param      {number} pixelPitch Screen pixel pitch, in millimeters (default = 0.28 mm / standard pixel size of 0.28 millimeters as defined by the OGC)
     * @return     {number} projection in meters on globe
     *
     * @deprecated Use `View#getPixelsToMeters` instead.
     */

  }, {
    key: "pixelsToMeters",
    value: function pixelsToMeters(pixels)
    /* istanbul ignore next */
    {
      var pixelPitch = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0.28;
      console.warn('Deprecated use View#getPixelsToMeters instead.');
      var scaled = this.getScale(pixelPitch);
      return pixels * pixelPitch / scaled / 1000;
    }
    /**
     * To convert the projection a number of horizontal pixels of screen to longitude degree WGS84 on the globe
     * @param      {number} pixels count pixels to project
     * @param      {number} pixelPitch Screen pixel pitch, in millimeters (default = 0.28 mm / standard pixel size of 0.28 millimeters as defined by the OGC)
     * @return     {number} projection in degree on globe
     *
     * @deprecated Use `View#getPixelsToMeters` and `GlobeControls#metersToDegrees`
     * instead.
     */

  }, {
    key: "pixelsToDegrees",
    value: function pixelsToDegrees(pixels)
    /* istanbul ignore next */
    {
      var pixelPitch = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0.28;
      console.warn('Deprecated, use View#getPixelsToMeters and GlobeControls#getMetersToDegrees instead.');
      var chord = this.pixelsToMeters(pixels, pixelPitch);
      return THREE.MathUtils.radToDeg(2 * Math.asin(chord / (2 * _Ellipsoid.ellipsoidSizes.x)));
    }
    /**
     * Projection on screen in pixels of length in meter on globe
     * @param      {number}  value Length in meter on globe
     * @param      {number}  pixelPitch Screen pixel pitch, in millimeters (default = 0.28 mm / standard pixel size of 0.28 millimeters as defined by the OGC)
     * @return     {number}  projection in pixels on screen
     *
     * @deprecated Use `View#getMetersToPixels` instead.
     */

  }, {
    key: "metersToPixels",
    value: function metersToPixels(value)
    /* istanbul ignore next */
    {
      var pixelPitch = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0.28;
      console.warn('Deprecated, use View#getMetersToPixels instead.');
      var scaled = this.getScale(pixelPitch);
      pixelPitch /= 1000;
      return value * scaled / pixelPitch;
    }
    /**
     * Changes the zoom of the central point of screen so that screen acts as a map with a specified scale.
     *  The view flies to the desired zoom scale;
     * @param      {number}  scale  The scale
     * @param      {number}  pitch  The pitch
     * @param      {boolean}  isAnimated  Indicates if animated
     * @return     {Promise}
     */

  }, {
    key: "setScale",
    value: function setScale(scale, pitch, isAnimated) {
      return this.lookAtCoordinate({
        scale: scale,
        pitch: pitch
      }, isAnimated);
    }
    /**
     * Changes the center of the scene on screen to the specified in lat, lon. See {@linkcode Coordinates} for conversion.
     * This function allows to change the central position, the zoom, the range, the scale and the camera orientation at the same time.
     * The zoom has to be between the [getMinZoom(), getMaxZoom()].
     * Zoom parameter is ignored if range is set
     * The tilt's interval is between 4 and 89.5 degree
     *
     * @param      {CameraUtils~CameraTransformOptions|Extent}   params camera transformation to apply
     * @param      {number}   [params.zoom]   zoom
     * @param      {number}   [params.scale]   scale
     * @param      {boolean}  isAnimated  Indicates if animated
     * @return     {Promise}  A promise that resolves when transformation is complete
     */

  }, {
    key: "lookAtCoordinate",
    value: function lookAtCoordinate() {
      var _this4 = this;

      var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var isAnimated = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.isAnimationEnabled();
      this.player.stop();

      if (!params.isExtent) {
        if (params.zoom) {
          params.range = this.view.tileLayer.computeDistanceCameraFromTileZoom(params.zoom, this.view.camera);
        } else if (params.scale) {
          params.range = this.view.getScaleFromDistance(params.pitch, params.scale);

          if (params.range < this.minDistance || params.range > this.maxDistance) {
            // eslint-disable-next-line no-console
            console.warn("This scale ".concat(params.scale, " can not be reached"));
            params.range = THREE.MathUtils.clamp(params.range, this.minDistance, this.maxDistance);
          }
        }

        if (params.tilt !== undefined) {
          var minTilt = 90 - THREE.MathUtils.radToDeg(this.maxPolarAngle);
          var maxTilt = 90 - THREE.MathUtils.radToDeg(this.minPolarAngle);

          if (params.tilt < minTilt || params.tilt > maxTilt) {
            params.tilt = THREE.MathUtils.clamp(params.tilt, minTilt, maxTilt); // eslint-disable-next-line no-console

            console.warn('Tilt was clamped to ', params.tilt, " the interval is between ".concat(minTilt, " and ").concat(maxTilt, " degree"));
          }
        }
      }

      previous = _CameraUtils["default"].getTransformCameraLookingAtTarget(this.view, this.camera);

      if (isAnimated) {
        params.callback = function (r) {
          return cameraTarget.position.copy(r.targetWorldPosition);
        };

        this.dispatchEvent({
          type: 'animation-started'
        });
        return _CameraUtils["default"].animateCameraToLookAtTarget(this.view, this.camera, params).then(function (result) {
          _this4.dispatchEvent({
            type: 'animation-ended'
          });

          _this4.handlingEvent(result);

          return result;
        });
      } else {
        return _CameraUtils["default"].transformCameraToLookAtTarget(this.view, this.camera, params).then(function (result) {
          cameraTarget.position.copy(result.targetWorldPosition);

          _this4.handlingEvent(result);

          return result;
        });
      }
    }
    /**
     * Pick a position on the globe at the given position in lat,lon. See {@linkcode Coordinates} for conversion.
     * @param {Vector2} windowCoords - window coordinates
     * @param {number=} y - The y-position inside the Globe element.
     * @return {Coordinates} position
     */

  }, {
    key: "pickGeoPosition",
    value: function pickGeoPosition(windowCoords) {
      var pickedPosition = this.view.getPickingPositionFromDepth(windowCoords);

      if (!pickedPosition) {
        return;
      }

      return new _Coordinates["default"]('EPSG:4978', pickedPosition).as('EPSG:4326');
    }
  }]);
  return GlobeControls;
}(THREE.EventDispatcher);

var _default = GlobeControls;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Controls/PlanarControls.js":
/*!************************************************************!*\
  !*** ./node_modules/itowns/lib/Controls/PlanarControls.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.keys = exports["default"] = exports.STATE = exports.PLANAR_CONTROL_EVENT = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _MainLoop = __webpack_require__(/*! ../Core/MainLoop */ "./node_modules/itowns/lib/Core/MainLoop.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

// event keycode
var keys = {
  CTRL: 17,
  SPACE: 32,
  T: 84,
  Y: 89
};
exports.keys = keys;
var mouseButtons = {
  LEFTCLICK: THREE.MOUSE.LEFT,
  MIDDLECLICK: THREE.MOUSE.MIDDLE,
  RIGHTCLICK: THREE.MOUSE.RIGHT
};
var currentPressedButton; // starting camera position and orientation target

var startPosition = new THREE.Vector3();
var startQuaternion = new THREE.Quaternion(); // camera initial zoom value if orthographic

var cameraInitialZoom = 0; // point under the cursor

var pointUnderCursor = new THREE.Vector3(); // control state

var STATE = {
  NONE: -1,
  DRAG: 0,
  PAN: 1,
  ROTATE: 2,
  TRAVEL: 3,
  ORTHO_ZOOM: 4
}; // cursor shape linked to control state

exports.STATE = STATE;
var cursor = {
  "default": 'auto',
  drag: 'move',
  pan: 'cell',
  travel: 'wait',
  rotate: 'move',
  ortho_zoom: 'wait'
};
var vectorZero = new THREE.Vector3(); // mouse movement

var mousePosition = new THREE.Vector2();
var lastMousePosition = new THREE.Vector2();
var deltaMousePosition = new THREE.Vector2(0, 0); // drag movement

var dragStart = new THREE.Vector3();
var dragEnd = new THREE.Vector3();
var dragDelta = new THREE.Vector3(); // camera focus point : ground point at screen center

var centerPoint = new THREE.Vector3(0, 0, 0); // camera rotation

var phi = 0.0; // displacement and rotation vectors

var vect = new THREE.Vector3();
var quat = new THREE.Quaternion();
var vect2 = new THREE.Vector2(); // animated travel

var travelEndPos = new THREE.Vector3();
var travelStartPos = new THREE.Vector3();
var travelStartRot = new THREE.Quaternion();
var travelEndRot = new THREE.Quaternion();
var travelAlpha = 0;
var travelDuration = 0;
var travelUseRotation = false;
var travelUseSmooth = false; // zoom changes (for orthographic camera)

var startZoom = 0;
var endZoom = 0; // ray caster for drag movement

var rayCaster = new THREE.Raycaster();
var plane = new THREE.Plane(new THREE.Vector3(0, 0, -1)); // default parameters :

var defaultOptions = {
  enableRotation: true,
  rotateSpeed: 2.0,
  minPanSpeed: 0.05,
  maxPanSpeed: 15,
  zoomTravelTime: 0.2,
  // must be a number
  zoomFactor: 2,
  maxResolution: 1 / Infinity,
  minResolution: Infinity,
  maxAltitude: 50000000,
  groundLevel: 200,
  autoTravelTimeMin: 1.5,
  autoTravelTimeMax: 4,
  autoTravelTimeDist: 50000,
  smartTravelHeightMin: 75,
  smartTravelHeightMax: 500,
  instantTravel: false,
  minZenithAngle: 0,
  maxZenithAngle: 82.5,
  handleCollision: true,
  minDistanceCollision: 30,
  enableSmartTravel: true,
  enablePan: true
};
var PLANAR_CONTROL_EVENT = {
  MOVED: 'moved'
};
/**
 * Planar controls is a camera controller adapted for a planar view, with animated movements.
 * Usage is as follow :
 * <ul>
 *     <li><b>Left mouse button:</b> drag the camera (translation on the (xy) world plane).</li>
 *     <li><b>Right mouse button:</b> pan the camera (translation on the vertical (z) axis of the world plane).</li>
 *     <li><b>CTRL + Left mouse button:</b> rotate the camera around the focus point.</li>
 *     <li><b>Wheel scrolling:</b> zoom toward the cursor position.</li>
 *     <li><b>Wheel clicking:</b> smart zoom toward the cursor position (animated).</li>
 *     <li><b>Y key:</b> go to the starting view (animated).</li>
 *     <li><b>T key:</b> go to the top view (animated).</li>
 * </ul>
 *
 * @class   PlanarControls
 * @param   {PlanarView}    view                                the view where the controls will be used
 * @param   {object}        options
 * @param   {boolean}       [options.enableRotation=true]       Enable the rotation with the `CTRL + Left mouse button`
 * and in animations, like the smart zoom.
 * @param   {boolean}       [options.enableSmartTravel=true]    Enable smart travel with the `wheel-click / space-bar`.
 * @param   {boolean}       [options.enablePan=true]            Enable pan movements with the `right-click`.
 * @param   {number}        [options.rotateSpeed=2.0]           Rotate speed.
 * @param   {number}        [options.maxPanSpeed=15]            Pan speed when close to maxAltitude.
 * @param   {number}        [options.minPanSpeed=0.05]          Pan speed when close to the ground.
 * @param   {number}        [options.zoomTravelTime=0.2]        Animation time when zooming.
 * @param   {number}        [options.zoomFactor=2]              The factor the scale is multiplied by when zooming
 * in and divided by when zooming out. This factor can't be null.
 * @param   {number}        [options.maxResolution=0]           The smallest size in meters a pixel at the center of the
 * view can represent.
 * @param   {number}        [options.minResolution=Infinity]    The biggest size in meters a pixel at the center of the
 * view can represent.
 * @param   {number}        [options.maxAltitude=12000]         Maximum altitude reachable when panning or zooming out.
 * @param   {number}        [options.groundLevel=200]           Minimum altitude reachable when panning.
 * @param   {number}        [options.autoTravelTimeMin=1.5]     Minimum duration for animated travels with the `auto`
 * parameter.
 * @param   {number}        [options.autoTravelTimeMax=4]       Maximum duration for animated travels with the `auto`
 * parameter.
 * @param   {number}        [options.autoTravelTimeDist=20000]  Maximum travel distance for animated travel with the
 * `auto` parameter.
 * @param   {number}        [options.smartTravelHeightMin=75]     Minimum height above ground reachable after a smart
 * travel.
 * @param   {number}        [options.smartTravelHeightMax=500]    Maximum height above ground reachable after a smart
 * travel.
 * @param   {boolean}       [options.instantTravel=false]       If set to true, animated travels will have no duration.
 * @param   {number}        [options.minZenithAngle=0]          The minimum reachable zenith angle for a camera
 * rotation, in degrees.
 * @param   {number}        [options.maxZenithAngle=82.5]       The maximum reachable zenith angle for a camera
 * rotation, in degrees.
 * @param   {boolean}       [options.handleCollision=true]
 */

exports.PLANAR_CONTROL_EVENT = PLANAR_CONTROL_EVENT;

var PlanarControls = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(PlanarControls, _THREE$EventDispatche);

  var _super = _createSuper(PlanarControls);

  function PlanarControls(view) {
    var _this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, PlanarControls);
    _this = _super.call(this);
    _this.view = view;
    _this.camera = view.camera.camera3D;

    if (_this.camera.isOrthographicCamera) {
      cameraInitialZoom = _this.camera.zoom; // enable rotation movements

      _this.enableRotation = false; // enable pan movements

      _this.enablePan = false; // Camera altitude is clamped under maxAltitude.
      // This is not relevant for an orthographic camera (since the orthographic camera altitude won't change).
      // Therefore, neutralizing by default the maxAltitude limit allows zooming out with an orthographic camera,
      // no matter its initial position.

      _this.maxAltitude = Infinity; // the zoom travel time (stored in `this.zoomTravelTime`) can't be `auto` with an orthographic camera

      _this.zoomTravelTime = typeof options.zoomTravelTime === 'number' ? options.zoomTravelTime : defaultOptions.zoomTravelTime;
    } else {
      // enable rotation movements
      _this.enableRotation = options.enableRotation === undefined ? defaultOptions.enableRotation : options.enableRotation;
      _this.rotateSpeed = options.rotateSpeed || defaultOptions.rotateSpeed; // enable pan movements

      _this.enablePan = options.enablePan === undefined ? defaultOptions.enablePan : options.enablePan; // minPanSpeed when close to the ground, maxPanSpeed when close to maxAltitude

      _this.minPanSpeed = options.minPanSpeed || defaultOptions.minPanSpeed;
      _this.maxPanSpeed = options.maxPanSpeed || defaultOptions.maxPanSpeed; // camera altitude is clamped under maxAltitude

      _this.maxAltitude = options.maxAltitude || defaultOptions.maxAltitude; // animation duration for the zoom

      _this.zoomTravelTime = options.zoomTravelTime || defaultOptions.zoomTravelTime;
    } // zoom movement is equal to the distance to the zoom target, multiplied by zoomFactor


    if (options.zoomInFactor) {
      console.warn('Controls zoomInFactor parameter is deprecated. Use zoomFactor instead.');
      options.zoomFactor = options.zoomFactor || options.zoomInFactor;
    }

    if (options.zoomOutFactor) {
      console.warn('Controls zoomOutFactor parameter is deprecated. Use zoomFactor instead.');
      options.zoomFactor = options.zoomFactor || options.zoomInFactor || 1 / options.zoomOutFactor;
    }

    if (options.zoomFactor === 0) {
      console.warn('Controls zoomFactor parameter can not be equal to 0. Its value will be set to default.');
      options.zoomFactor = defaultOptions.zoomFactor;
    }

    _this.zoomInFactor = options.zoomFactor || defaultOptions.zoomFactor;
    _this.zoomOutFactor = 1 / (options.zoomFactor || defaultOptions.zoomFactor); // the maximum and minimum size (in meters) a pixel at the center of the view can represent

    _this.maxResolution = options.maxResolution || defaultOptions.maxResolution;
    _this.minResolution = options.minResolution || defaultOptions.minResolution; // approximate ground altitude value. Camera altitude is clamped above groundLevel

    _this.groundLevel = options.groundLevel || defaultOptions.groundLevel; // min and max duration in seconds, for animated travels with `auto` parameter

    _this.autoTravelTimeMin = options.autoTravelTimeMin || defaultOptions.autoTravelTimeMin;
    _this.autoTravelTimeMax = options.autoTravelTimeMax || defaultOptions.autoTravelTimeMax; // max travel duration is reached for this travel distance (empirical smoothing value)

    _this.autoTravelTimeDist = options.autoTravelTimeDist || defaultOptions.autoTravelTimeDist; // after a smartZoom, camera height above ground will be between these two values

    if (options.smartZoomHeightMin) {
      console.warn('Controls smartZoomHeightMin parameter is deprecated. Use smartTravelHeightMin instead.');
      options.smartTravelHeightMin = options.smartTravelHeightMin || options.smartZoomHeightMin;
    }

    if (options.smartZoomHeightMax) {
      console.warn('Controls smartZoomHeightMax parameter is deprecated. Use smartTravelHeightMax instead.');
      options.smartTravelHeightMax = options.smartTravelHeightMax || options.smartZoomHeightMax;
    }

    _this.smartTravelHeightMin = options.smartTravelHeightMin || defaultOptions.smartTravelHeightMin;
    _this.smartTravelHeightMax = options.smartTravelHeightMax || defaultOptions.smartTravelHeightMax; // if set to true, animated travels have 0 duration

    _this.instantTravel = options.instantTravel || defaultOptions.instantTravel; // the zenith angle for a camera rotation will be between these two values

    _this.minZenithAngle = (options.minZenithAngle || defaultOptions.minZenithAngle) * Math.PI / 180; // max value should be less than 90 deg (90 = parallel to the ground)

    _this.maxZenithAngle = (options.maxZenithAngle || defaultOptions.maxZenithAngle) * Math.PI / 180; // focus policy options

    if (options.focusOnMouseOver) {
      console.warn('Planar controls \'focusOnMouseOver\' optional parameter has been removed.');
    }

    if (options.focusOnMouseClick) {
      console.warn('Planar controls \'focusOnMouseClick\' optional parameter has been removed.');
    } // set collision options


    _this.handleCollision = options.handleCollision === undefined ? defaultOptions.handleCollision : options.handleCollision;
    _this.minDistanceCollision = defaultOptions.minDistanceCollision; // enable smart travel

    _this.enableSmartTravel = options.enableSmartTravel === undefined ? defaultOptions.enableSmartTravel : options.enableSmartTravel;
    startPosition.copy(_this.camera.position);
    startQuaternion.copy(_this.camera.quaternion); // control state

    _this.state = STATE.NONE;
    _this.cursor = cursor;

    if (_this.view.controls) {
      // esLint-disable-next-line no-console
      console.warn('Deprecated use of PlanarControls. See examples to correct PlanarControls implementation.');

      _this.view.controls.dispose();
    }

    _this.view.controls = (0, _assertThisInitialized2["default"])(_this); // eventListeners handlers

    _this._handlerOnKeyDown = _this.onKeyDown.bind((0, _assertThisInitialized2["default"])(_this));
    _this._handlerOnMouseDown = _this.onMouseDown.bind((0, _assertThisInitialized2["default"])(_this));
    _this._handlerOnMouseUp = _this.onMouseUp.bind((0, _assertThisInitialized2["default"])(_this));
    _this._handlerOnMouseMove = _this.onMouseMove.bind((0, _assertThisInitialized2["default"])(_this));
    _this._handlerOnMouseWheel = _this.onMouseWheel.bind((0, _assertThisInitialized2["default"])(_this));
    _this._handlerContextMenu = _this.onContextMenu.bind((0, _assertThisInitialized2["default"])(_this));
    _this._handlerUpdate = _this.update.bind((0, _assertThisInitialized2["default"])(_this)); // add this PlanarControl instance to the view's frameRequesters
    // with this, PlanarControl.update() will be called each frame

    _this.view.addFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.AFTER_CAMERA_UPDATE, _this._handlerUpdate); // event listeners for user input (to activate the controls)


    _this.addInputListeners();

    return _this;
  }

  (0, _createClass2["default"])(PlanarControls, [{
    key: "dispose",
    value: function dispose() {
      this.removeInputListeners();
      this.view.removeFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.AFTER_CAMERA_UPDATE, this._handlerUpdate);
    }
    /**
     * update the view and camera if needed, and handles the animated travel
     * @param   {number}    dt                  the delta time between two updates in millisecond
     * @param   {boolean}   updateLoopRestarted true if we just started rendering
     * @ignore
     */

  }, {
    key: "update",
    value: function update(dt, updateLoopRestarted) {
      // dt will not be relevant when we just started rendering. We consider a 1-frame move in this case
      if (updateLoopRestarted) {
        dt = 16;
      }

      var onMovement = this.state !== STATE.NONE;

      switch (this.state) {
        case STATE.TRAVEL:
          this.handleTravel(dt);
          this.view.notifyChange(this.camera);
          break;

        case STATE.ORTHO_ZOOM:
          this.handleZoomOrtho(dt);
          this.view.notifyChange(this.camera);
          break;

        case STATE.DRAG:
          this.handleDragMovement();
          this.view.notifyChange(this.camera);
          break;

        case STATE.ROTATE:
          this.handleRotation();
          this.view.notifyChange(this.camera);
          break;

        case STATE.PAN:
          this.handlePanMovement();
          this.view.notifyChange(this.camera);
          break;

        case STATE.NONE:
        default:
          break;
      } // We test if camera collides to the geometry layer or is too close to the ground, and adjust its altitude in
      // case


      if (this.handleCollision) {
        // check distance to the ground/surface geometry (could be another geometry layer)
        this.view.camera.adjustAltitudeToAvoidCollisionWithLayer(this.view, this.view.tileLayer, this.minDistanceCollision);
      }

      if (onMovement) {
        this.view.dispatchEvent({
          type: PLANAR_CONTROL_EVENT.MOVED
        });
      }

      deltaMousePosition.set(0, 0);
    }
    /**
     * Initiate a drag movement (translation on (xy) plane). The movement value is derived from the actual world
     * point under the mouse cursor. This allows user to 'grab' a world point and drag it to move.
     *
     * @ignore
     */

  }, {
    key: "initiateDrag",
    value: function initiateDrag() {
      this.state = STATE.DRAG; // the world point under mouse cursor when the drag movement is started

      dragStart.copy(this.getWorldPointAtScreenXY(mousePosition)); // the difference between start and end cursor position

      dragDelta.set(0, 0, 0);
    }
    /**
     * Handle the drag movement (translation on (xy) plane) when user moves the mouse while in STATE.DRAG. The
     * drag movement is previously initiated by [initiateDrag]{@link PlanarControls#initiateDrag}. Compute the
     * drag value and update the camera controls. The movement value is derived from the actual world point under
     * the mouse cursor. This allows the user to 'grab' a world point and drag it to move.
     *
     * @ignore
     */

  }, {
    key: "handleDragMovement",
    value: function handleDragMovement() {
      // the world point under the current mouse cursor position, at same altitude than dragStart
      this.getWorldPointFromMathPlaneAtScreenXY(mousePosition, dragStart.z, dragEnd); // the difference between start and end cursor position

      dragDelta.subVectors(dragStart, dragEnd); // update the camera position

      this.camera.position.add(dragDelta);
      dragDelta.set(0, 0, 0);
    }
    /**
     * Initiate a pan movement (local translation on (xz) plane).
     *
     * @ignore
     */

  }, {
    key: "initiatePan",
    value: function initiatePan() {
      this.state = STATE.PAN;
    }
    /**
     * Handle the pan movement (translation on local x / world z plane) when user moves the mouse while
     * STATE.PAN. The drag movement is previously initiated by [initiatePan]{@link PlanarControls#initiatePan}.
     * Compute the pan value and update the camera controls.
     *
     * @ignore
     */

  }, {
    key: "handlePanMovement",
    value: function handlePanMovement() {
      vect.set(-deltaMousePosition.x, deltaMousePosition.y, 0);
      this.camera.localToWorld(vect);
      this.camera.position.copy(vect);
    }
    /**
     * Initiate a rotate (orbit) movement.
     *
     * @ignore
     */

  }, {
    key: "initiateRotation",
    value: function initiateRotation() {
      this.state = STATE.ROTATE;
      centerPoint.copy(this.getWorldPointAtScreenXY(new THREE.Vector2(0.5 * this.view.mainLoop.gfxEngine.width, 0.5 * this.view.mainLoop.gfxEngine.height)));
      var radius = this.camera.position.distanceTo(centerPoint);
      phi = Math.acos((this.camera.position.z - centerPoint.z) / radius);
    }
    /**
     * Handle the rotate movement (orbit) when user moves the mouse while in STATE.ROTATE. The movement is an
     * orbit around `centerPoint`, the camera focus point (ground point at screen center). The rotate movement
     * is previously initiated in [initiateRotation]{@link PlanarControls#initiateRotation}.
     * Compute the new position value and update the camera controls.
     *
     * @ignore
     */

  }, {
    key: "handleRotation",
    value: function handleRotation() {
      // angle deltas
      // deltaMousePosition is computed in onMouseMove / onMouseDowns
      var thetaDelta = -this.rotateSpeed * deltaMousePosition.x / this.view.mainLoop.gfxEngine.width;
      var phiDelta = -this.rotateSpeed * deltaMousePosition.y / this.view.mainLoop.gfxEngine.height; // the vector from centerPoint (focus point) to camera position

      var offset = this.camera.position.clone().sub(centerPoint);

      if (thetaDelta !== 0 || phiDelta !== 0) {
        if (phi + phiDelta >= this.minZenithAngle && phi + phiDelta <= this.maxZenithAngle && phiDelta !== 0) {
          // rotation around X (altitude)
          phi += phiDelta;
          vect.set(0, 0, 1);
          quat.setFromUnitVectors(this.camera.up, vect);
          offset.applyQuaternion(quat);
          vect.setFromMatrixColumn(this.camera.matrix, 0);
          quat.setFromAxisAngle(vect, phiDelta);
          offset.applyQuaternion(quat);
          vect.set(0, 0, 1);
          quat.setFromUnitVectors(this.camera.up, vect).invert();
          offset.applyQuaternion(quat);
        }

        if (thetaDelta !== 0) {
          // rotation around Z (azimuth)
          vect.set(0, 0, 1);
          quat.setFromAxisAngle(vect, thetaDelta);
          offset.applyQuaternion(quat);
        }
      }

      this.camera.position.copy(offset); // TODO : lookAt calls an updateMatrixWorld(). It should be replaced by a new method that does not.

      this.camera.lookAt(vectorZero);
      this.camera.position.add(centerPoint);
      this.camera.updateMatrixWorld();
    }
    /**
     * Triggers a Zoom animated movement (travel) toward / away from the world point under the mouse cursor. The
     * zoom intensity varies according to the distance between the camera and the point. The closer to the ground,
     * the lower the intensity. Orientation will not change (null parameter in the call to
     * [initiateTravel]{@link PlanarControls#initiateTravel} function).
     *
     * @param   {Event} event   the mouse wheel event.
     * @ignore
     */

  }, {
    key: "initiateZoom",
    value: function initiateZoom(event) {
      var delta = -event.deltaY;
      pointUnderCursor.copy(this.getWorldPointAtScreenXY(mousePosition));
      var newPos = new THREE.Vector3();

      if (delta > 0 || delta < 0 && this.maxAltitude > this.camera.position.z) {
        var zoomFactor = delta > 0 ? this.zoomInFactor : this.zoomOutFactor; // do not zoom if the resolution after the zoom is outside resolution limits

        var endResolution = this.view.getPixelsToMeters() / zoomFactor;

        if (this.maxResolution > endResolution || endResolution > this.minResolution) {
          return;
        } // change the camera field of view if the camera is orthographic


        if (this.camera.isOrthographicCamera) {
          // switch state to STATE.ZOOM
          this.state = STATE.ORTHO_ZOOM;
          this.view.notifyChange(this.camera); // camera zoom at the beginning of zoom movement

          startZoom = this.camera.zoom; // camera zoom at the end of zoom movement

          endZoom = startZoom * zoomFactor; // the altitude of the target must be the same as camera's

          pointUnderCursor.z = this.camera.position.z;
          travelAlpha = 0;
          travelDuration = this.zoomTravelTime;
          this.updateMouseCursorType();
        } else {
          // target position
          newPos.lerpVectors(this.camera.position, pointUnderCursor, 1 - 1 / zoomFactor); // initiate travel

          this.initiateTravel(newPos, this.zoomTravelTime, null, false);
        }
      }
    }
    /**
     * Handle the animated zoom change for an orthographic camera, when state is `ZOOM`.
     *
     * @param   {number}    dt  the delta time between two updates in milliseconds
     * @ignore
     */

  }, {
    key: "handleZoomOrtho",
    value: function handleZoomOrtho(dt) {
      travelAlpha = Math.min(travelAlpha + dt / 1000 / travelDuration, 1); // new zoom

      var zoom = startZoom + travelAlpha * (endZoom - startZoom);

      if (this.camera.zoom !== zoom) {
        // zoom has changed
        this.camera.zoom = zoom;
        this.camera.updateProjectionMatrix(); // current world coordinates under the mouse

        this.view.viewToNormalizedCoords(mousePosition, vect);
        vect.z = 0;
        vect.unproject(this.camera); // new camera position

        this.camera.position.x += pointUnderCursor.x - vect.x;
        this.camera.position.y += pointUnderCursor.y - vect.y;
        this.camera.updateMatrixWorld(true);
      } // completion test


      this.testAnimationEnd();
    }
    /**
     * Triggers a 'smart zoom' animated movement (travel) toward the point under mouse cursor. The camera will be
     * smoothly moved and oriented close to the target, at a determined height and distance.
     *
     * @ignore
     */

  }, {
    key: "initiateSmartTravel",
    value: function initiateSmartTravel() {
      var pointUnderCursor = this.getWorldPointAtScreenXY(mousePosition); // direction of the movement, projected on xy plane and normalized

      var dir = new THREE.Vector3();
      dir.copy(pointUnderCursor).sub(this.camera.position);
      dir.z = 0;
      dir.normalize();
      var distanceToPoint = this.camera.position.distanceTo(pointUnderCursor); // camera height (altitude above ground) at the end of the travel, 5000 is an empirical smoothing distance

      var targetHeight = THREE.MathUtils.lerp(this.smartTravelHeightMin, this.smartTravelHeightMax, Math.min(distanceToPoint / 5000, 1)); // camera position at the end of the travel

      var moveTarget = new THREE.Vector3();
      moveTarget.copy(pointUnderCursor);

      if (this.enableRotation) {
        moveTarget.add(dir.multiplyScalar(-targetHeight * 2));
      }

      moveTarget.z = pointUnderCursor.z + targetHeight;

      if (this.camera.isOrthographicCamera) {
        startZoom = this.camera.zoom; // camera zoom at the end of the travel, 5000 is an empirical smoothing distance

        endZoom = startZoom * (1 + Math.min(distanceToPoint / 5000, 1));
        moveTarget.z = this.camera.position.z;
      } // initiate the travel


      this.initiateTravel(moveTarget, 'auto', pointUnderCursor, true);
    }
    /**
     * Triggers an animated movement and rotation for the camera.
     *
     * @param   {THREE.Vector3} targetPos   The target position of the camera (reached at the end).
     * @param   {number|string}        travelTime  Set to `auto` or set to a duration in seconds. If set to `auto`,
     * travel time will be set to a duration between `autoTravelTimeMin` and `autoTravelTimeMax` according to
     * the distance and the angular difference between start and finish.
     * @param   {(string|THREE.Vector3|THREE.Quaternion)}   targetOrientation   define the target rotation of
     * the camera :
     * <ul>
     *     <li>if targetOrientation is a world point (Vector3) : the camera will lookAt() this point</li>
     *     <li>if targetOrientation is a quaternion : this quaternion will define the final camera orientation </li>
     *     <li>if targetOrientation is neither a world point nor a quaternion : the camera will keep its starting
     *     orientation</li>
     * </ul>
     * @param   {boolean}       useSmooth   animation is smoothed using the `smooth(value)` function (slower
     * at start and finish).
     *
     * @ignore
     */

  }, {
    key: "initiateTravel",
    value: function initiateTravel(targetPos, travelTime, targetOrientation, useSmooth) {
      this.state = STATE.TRAVEL;
      this.view.notifyChange(this.camera); // the progress of the travel (animation alpha)

      travelAlpha = 0; // update cursor

      this.updateMouseCursorType();
      travelUseRotation = this.enableRotation && targetOrientation && (targetOrientation.isQuaternion || targetOrientation.isVector3);
      travelUseSmooth = useSmooth; // start position (current camera position)

      travelStartPos.copy(this.camera.position); // start rotation (current camera rotation)

      travelStartRot.copy(this.camera.quaternion); // setup the end rotation :

      if (travelUseRotation) {
        if (targetOrientation.isQuaternion) {
          // case where targetOrientation is a quaternion
          travelEndRot.copy(targetOrientation);
        } else if (targetOrientation.isVector3) {
          // case where targetOrientation is a Vector3
          if (targetPos === targetOrientation) {
            this.camera.lookAt(targetOrientation);
            travelEndRot.copy(this.camera.quaternion);
            this.camera.quaternion.copy(travelStartRot);
          } else {
            this.camera.position.copy(targetPos);
            this.camera.lookAt(targetOrientation);
            travelEndRot.copy(this.camera.quaternion);
            this.camera.quaternion.copy(travelStartRot);
            this.camera.position.copy(travelStartPos);
          }
        }
      } // end position


      travelEndPos.copy(targetPos); // beginning of the travel duration setup

      if (this.instantTravel) {
        travelDuration = 0;
      } else if (travelTime === 'auto') {
        // case where travelTime is set to `auto` : travelDuration will be a value between autoTravelTimeMin and
        // autoTravelTimeMax depending on travel distance and travel angular difference
        // a value between 0 and 1 according to the travel distance. Adjusted by autoTravelTimeDist parameter
        var normalizedDistance = Math.min(1, targetPos.distanceTo(this.camera.position) / this.autoTravelTimeDist);
        travelDuration = THREE.MathUtils.lerp(this.autoTravelTimeMin, this.autoTravelTimeMax, normalizedDistance); // if travel changes camera orientation, travel duration is adjusted according to angularDifference
        // this allows for a smoother travel (more time for the camera to rotate)
        // final duration will not exceed autoTravelTimeMax

        if (travelUseRotation) {
          // value is normalized between 0 and 1
          var angularDifference = 0.5 - 0.5 * travelEndRot.normalize().dot(this.camera.quaternion.normalize());
          travelDuration *= 1 + 2 * angularDifference;
          travelDuration = Math.min(travelDuration, this.autoTravelTimeMax);
        }
      } else {
        // case where travelTime !== `auto` : travelTime is a duration in seconds given as parameter
        travelDuration = travelTime;
      }
    }
    /**
     * Handle the animated movement and rotation of the camera in `travel` state.
     *
     * @param   {number}    dt  the delta time between two updates in milliseconds
     * @ignore
     */

  }, {
    key: "handleTravel",
    value: function handleTravel(dt) {
      travelAlpha = Math.min(travelAlpha + dt / 1000 / travelDuration, 1); // the animation alpha, between 0 (start) and 1 (finish)

      var alpha = travelUseSmooth ? this.smooth(travelAlpha) : travelAlpha; // new position

      this.camera.position.lerpVectors(travelStartPos, travelEndPos, alpha);
      var zoom = startZoom + alpha * (endZoom - startZoom); // new zoom

      if (this.camera.isOrthographicCamera && this.camera.zoom !== zoom) {
        this.camera.zoom = zoom;
        this.camera.updateProjectionMatrix();
      } // new rotation


      if (travelUseRotation === true) {
        this.camera.quaternion.slerpQuaternions(travelStartRot, travelEndRot, alpha);
      } // completion test


      this.testAnimationEnd();
    }
    /**
     * Test if the currently running animation is finished (travelAlpha reached 1).
     * If it is, reset controls to state NONE.
     *
     * @ignore
     */

  }, {
    key: "testAnimationEnd",
    value: function testAnimationEnd() {
      if (travelAlpha === 1) {
        // Resume normal behaviour after animation is completed
        this.state = STATE.NONE;
        this.updateMouseCursorType();
      }
    }
    /**
     * Triggers an animated movement (travel) to set the camera to top view, above the focus point,
     * at altitude = distanceToFocusPoint.
     *
     * @ignore
     */

  }, {
    key: "goToTopView",
    value: function goToTopView() {
      var topViewPos = new THREE.Vector3();
      var targetQuat = new THREE.Quaternion(); // the top view position is above the camera focus point, at an altitude = distanceToPoint

      topViewPos.copy(this.getWorldPointAtScreenXY(new THREE.Vector2(0.5 * this.view.mainLoop.gfxEngine.width, 0.5 * this.view.mainLoop.gfxEngine.height)));
      topViewPos.z += Math.min(this.maxAltitude, this.camera.position.distanceTo(topViewPos));
      targetQuat.setFromAxisAngle(new THREE.Vector3(1, 0, 0), 0); // initiate the travel

      this.initiateTravel(topViewPos, 'auto', targetQuat, true);
    }
    /**
     * Triggers an animated movement (travel) to set the camera to starting view
     *
     * @ignore
     */

  }, {
    key: "goToStartView",
    value: function goToStartView() {
      // if startZoom and endZoom have not been set yet, give them neutral values
      if (this.camera.isOrthographicCamera) {
        startZoom = this.camera.zoom;
        endZoom = cameraInitialZoom;
      }

      this.initiateTravel(startPosition, 'auto', startQuaternion, true);
    }
    /**
     * Returns the world point (xyz) under the posXY screen point. The point belong to an abstract mathematical
     * plane of specified altitude (does not us actual geometry).
     *
     * @param   {THREE.Vector2} posXY       the mouse position in screen space (unit : pixel)
     * @param   {number}        altitude    the altitude (z) of the mathematical plane
     * @param   {THREE.Vector3} target      the target vector3
     * @return  {THREE.Vector3}
     * @ignore
     */

  }, {
    key: "getWorldPointFromMathPlaneAtScreenXY",
    value: function getWorldPointFromMathPlaneAtScreenXY(posXY, altitude) {
      var target = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new THREE.Vector3();
      vect2.copy(this.view.viewToNormalizedCoords(posXY));
      rayCaster.setFromCamera(vect2, this.camera);
      plane.constant = altitude;
      rayCaster.ray.intersectPlane(plane, target);
      return target;
    }
    /**
     * Returns the world point (xyz) under the posXY screen point. If geometry is under the cursor, the point is
     * obtained with getPickingPositionFromDepth. If no geometry is under the cursor, the point is obtained with
     * [getWorldPointFromMathPlaneAtScreenXY]{@link PlanarControls#getWorldPointFromMathPlaneAtScreenXY}.
     *
     * @param   {THREE.Vector2} posXY   the mouse position in screen space (unit : pixel)
     * @param   {THREE.Vector3} target  the target World coordinates.
     * @return  {THREE.Vector3}
     * @ignore
     */

  }, {
    key: "getWorldPointAtScreenXY",
    value: function getWorldPointAtScreenXY(posXY) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Vector3();

      // check if there is a valid geometry under cursor
      if (this.view.getPickingPositionFromDepth(posXY, target)) {
        return target;
      } else {
        // if not, we use the mathematical plane at altitude = groundLevel
        this.getWorldPointFromMathPlaneAtScreenXY(posXY, this.groundLevel, target);
        return target;
      }
    }
    /**
     * Add all the input event listeners (activate the controls).
     *
     * @ignore
     */

  }, {
    key: "addInputListeners",
    value: function addInputListeners() {
      this.view.domElement.addEventListener('keydown', this._handlerOnKeyDown, false);
      this.view.domElement.addEventListener('mousedown', this._handlerOnMouseDown, false);
      this.view.domElement.addEventListener('mouseup', this._handlerOnMouseUp, false);
      this.view.domElement.addEventListener('mouseleave', this._handlerOnMouseUp, false);
      this.view.domElement.addEventListener('mousemove', this._handlerOnMouseMove, false);
      this.view.domElement.addEventListener('wheel', this._handlerOnMouseWheel, false); // prevent the default context menu from appearing when right-clicking
      // this allows to use right-click for input without the menu appearing

      this.view.domElement.addEventListener('contextmenu', this._handlerContextMenu, false);
    }
    /**
     * Removes all the input listeners (deactivate the controls).
     *
     * @ignore
     */

  }, {
    key: "removeInputListeners",
    value: function removeInputListeners() {
      this.view.domElement.removeEventListener('keydown', this._handlerOnKeyDown, true);
      this.view.domElement.removeEventListener('mousedown', this._handlerOnMouseDown, false);
      this.view.domElement.removeEventListener('mouseup', this._handlerOnMouseUp, false);
      this.view.domElement.removeEventListener('mouseleave', this._handlerOnMouseUp, false);
      this.view.domElement.removeEventListener('mousemove', this._handlerOnMouseMove, false);
      this.view.domElement.removeEventListener('wheel', this._handlerOnMouseWheel, false);
      this.view.domElement.removeEventListener('contextmenu', this._handlerContextMenu, false);
    }
    /**
     * Update the cursor image according to the control state.
     *
     * @ignore
     */

  }, {
    key: "updateMouseCursorType",
    value: function updateMouseCursorType() {
      switch (this.state) {
        case STATE.NONE:
          this.view.domElement.style.cursor = this.cursor["default"];
          break;

        case STATE.DRAG:
          this.view.domElement.style.cursor = this.cursor.drag;
          break;

        case STATE.PAN:
          this.view.domElement.style.cursor = this.cursor.pan;
          break;

        case STATE.TRAVEL:
          this.view.domElement.style.cursor = this.cursor.travel;
          break;

        case STATE.ORTHO_ZOOM:
          this.view.domElement.style.cursor = this.cursor.ortho_zoom;
          break;

        case STATE.ROTATE:
          this.view.domElement.style.cursor = this.cursor.rotate;
          break;

        default:
          break;
      }
    }
  }, {
    key: "updateMousePositionAndDelta",
    value: function updateMousePositionAndDelta(event) {
      this.view.eventToViewCoords(event, mousePosition);
      deltaMousePosition.copy(mousePosition).sub(lastMousePosition);
      lastMousePosition.copy(mousePosition);
    }
    /**
     * cursor modification for a specifique state.
     *
     * @param   {string} state   the state in which we want to change the cursor ('default', 'drag', 'pan', 'travel', 'rotate').
     * @param   {string} newCursor   the css cursor we want to have for the specified state.
     * @ignore
     */

  }, {
    key: "setCursor",
    value: function setCursor(state, newCursor) {
      this.cursor[state] = newCursor;
      this.updateMouseCursorType();
    }
    /**
     * Catch and manage the event when a touch on the mouse is downs.
     *
     * @param   {Event} event   the current event (mouse left or right button clicked, mouse wheel button actioned).
     * @ignore
     */

  }, {
    key: "onMouseDown",
    value: function onMouseDown(event) {
      event.preventDefault();
      this.view.domElement.focus();

      if (STATE.NONE !== this.state) {
        return;
      }

      currentPressedButton = event.button;
      this.updateMousePositionAndDelta(event);

      if (mouseButtons.LEFTCLICK === event.button) {
        if (event.ctrlKey) {
          if (this.enableRotation) {
            this.initiateRotation();
          } else {
            return;
          }
        } else {
          this.initiateDrag();
        }
      } else if (mouseButtons.MIDDLECLICK === event.button) {
        if (this.enableSmartTravel) {
          this.initiateSmartTravel();
        } else {
          return;
        }
      } else if (mouseButtons.RIGHTCLICK === event.button) {
        if (this.enablePan) {
          this.initiatePan();
        } else {
          return;
        }
      }

      this.updateMouseCursorType();
    }
    /**
     * Catch and manage the event when a touch on the mouse is released.
     *
     * @param   {Event} event   the current event
     * @ignore
     */

  }, {
    key: "onMouseUp",
    value: function onMouseUp(event) {
      event.preventDefault(); // Does not interrupt ongoing camera action if state is TRAVEL or CAMERA_OTHO. This prevents interrupting a zoom
      // movement or a smart travel by pressing any movement key.
      // The camera action is also uninterrupted if the released button does not match the button triggering the
      // ongoing action. This prevents for instance exiting drag mode when right-clicking while dragging the view.

      if (STATE.TRAVEL !== this.state && STATE.ORTHO_ZOOM !== this.state && currentPressedButton === event.button) {
        this.state = STATE.NONE;
      }

      this.updateMouseCursorType();
    }
    /**
     * Catch and manage the event when the mouse is moved.
     *
     * @param   {Event} event   the current event.
     * @ignore
     */

  }, {
    key: "onMouseMove",
    value: function onMouseMove(event) {
      event.preventDefault();
      this.updateMousePositionAndDelta(event); // notify change if moving

      if (STATE.NONE !== this.state) {
        this.view.notifyChange();
      }
    }
    /**
     * Catch and manage the event when a key is down.
     *
     * @param   {Event} event   the current event
     * @ignore
     */

  }, {
    key: "onKeyDown",
    value: function onKeyDown(event) {
      if (STATE.NONE !== this.state) {
        return;
      }

      switch (event.keyCode) {
        case keys.T:
          // going to top view is not relevant for an orthographic camera, since it is always top view
          if (!this.camera.isOrthographicCamera) {
            this.goToTopView();
          }

          break;

        case keys.Y:
          this.goToStartView();
          break;

        case keys.SPACE:
          if (this.enableSmartTravel) {
            this.initiateSmartTravel(event);
          }

          break;

        default:
          break;
      }
    }
    /**
     * Catch and manage the event when the mouse wheel is rolled.
     *
     * @param   {Event} event   the current event
     * @ignore
     */

  }, {
    key: "onMouseWheel",
    value: function onMouseWheel(event) {
      event.preventDefault();
      event.stopPropagation();

      if (STATE.NONE === this.state) {
        this.initiateZoom(event);
      }
    }
    /**
     * Catch and manage the event when the context menu is called (by a right-click on the window). We use this
     * to prevent the context menu from appearing so we can use right click for other inputs.
     *
     * @param   {Event} event   the current event
     * @ignore
     */

  }, {
    key: "onContextMenu",
    value: function onContextMenu(event) {
      event.preventDefault();
    }
    /**
     * Smoothing function (sigmoid) : based on h01 Hermite function.
     *
     * @param   {number}    value   the value to be smoothed, between 0 and 1.
     * @return  {number}            a value between 0 and 1.
     * @ignore
     */

  }, {
    key: "smooth",
    value: function smooth(value) {
      // p between 1.0 and 1.5 (empirical)
      return Math.pow(Math.pow(value, 2) * (3 - 2 * value), 1.20);
    }
  }]);
  return PlanarControls;
}(THREE.EventDispatcher);

var _default = PlanarControls;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Controls/StateControl.js":
/*!**********************************************************!*\
  !*** ./node_modules/itowns/lib/Controls/StateControl.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var CONTROL_KEYS = {
  LEFT: 37,
  UP: 38,
  RIGHT: 39,
  BOTTOM: 40,
  SPACE: 32,
  SHIFT: 16,
  CTRL: 17,
  S: 83
}; // TODO : a class should be made for `State`, and the properties marked with `_` prefix should be made private

var DEFAULT_STATES = {
  ORBIT: {
    enable: true,
    mouseButton: THREE.MOUSE.LEFT,
    "double": false,
    keyboard: CONTROL_KEYS.CTRL,
    finger: 2,
    _event: 'rotate'
  },
  MOVE_GLOBE: {
    enable: true,
    mouseButton: THREE.MOUSE.LEFT,
    "double": false,
    finger: 1,
    _event: 'drag'
  },
  DOLLY: {
    enable: true,
    mouseButton: THREE.MOUSE.MIDDLE,
    "double": false,
    finger: 2,
    _event: 'dolly'
  },
  PAN: {
    enable: true,
    mouseButton: THREE.MOUSE.RIGHT,
    "double": false,
    finger: 3,
    _event: 'pan'
  },
  PANORAMIC: {
    enable: true,
    mouseButton: THREE.MOUSE.LEFT,
    "double": false,
    keyboard: CONTROL_KEYS.SHIFT,
    _event: 'panoramic'
  },
  TRAVEL_IN: {
    enable: true,
    mouseButton: THREE.MOUSE.LEFT,
    "double": true,
    _event: 'travel_in',
    _trigger: true,
    _direction: 'in'
  },
  TRAVEL_OUT: {
    enable: false,
    "double": false,
    _event: 'travel_out',
    _trigger: true,
    _direction: 'out'
  },
  ZOOM: {
    enable: true,
    _event: 'zoom',
    _trigger: true
  },
  PAN_UP: {
    enable: true,
    keyboard: CONTROL_KEYS.UP,
    "double": false,
    _event: 'pan',
    _trigger: true,
    _direction: 'up'
  },
  PAN_BOTTOM: {
    enable: true,
    keyboard: CONTROL_KEYS.BOTTOM,
    "double": false,
    _event: 'pan',
    _trigger: true,
    _direction: 'bottom'
  },
  PAN_LEFT: {
    enable: true,
    keyboard: CONTROL_KEYS.LEFT,
    "double": false,
    _event: 'pan',
    _trigger: true,
    _direction: 'left'
  },
  PAN_RIGHT: {
    enable: true,
    keyboard: CONTROL_KEYS.RIGHT,
    "double": false,
    _event: 'pan',
    _trigger: true,
    _direction: 'right'
  }
};
var viewCoords = new THREE.Vector2();
/**
 * @typedef {Object} StateControl~State
 * @property {boolean} enable=true Indicate whether the state is enabled or not.
 * @property {Number} [mouseButton] The mouse button bound to this state.
 * @property {Number} [keyboard] The keyCode of the keyboard input bound to this state.
 * @property {Number} [finger] The number of fingers on the pad bound to this state.
 * @property {boolean} [double] True if the mouse button bound to this state must be pressed twice. For
                                * example, if `double` is set to true with a `mouseButton` set to left click,
                                * the State will be bound to a double click mouse button.
 */

/**
 * It represents the control's states.
 * Each {@link State} is a control mode of the camera and how to interact with
 * the interface to activate this mode.
 * @class StateControl
 *
 * @property {State}    NONE        {@link State} when camera is idle.
 * @property {State}    ORBIT       {@link State} describing camera orbiting movement : the camera moves around its
                                    * target at a constant distance from it.
 * @property {State}    DOLLY       {@link State} describing camera dolly movement : the camera moves forward or
                                    * backward from its target.
 * @property {State}    PAN         {@link State} describing camera pan movement : the camera moves parallel to the
                                    * current view plane.
 * @property {State}    MOVE_GLOBE  {@link State} describing camera drag movement : the camera is moved around the view
                                    * to give the feeling that the view is dragged under a static camera.
 * @property {State}    PANORAMIC   {@link State} describing camera panoramic movement : the camera is rotated around
                                    * its own position.
 * @property {State}    TRAVEL_IN   {@link State} describing camera travel in movement : the camera is zoomed in toward
                                    * a given position. The target position depends on the key/mouse binding of this
                                    * state. If bound to a mouse button, the target position is the mouse position.
                                    * Otherwise, it is the center of the screen.
 * @property {State}    TRAVEL_OUT  {@link State} describing camera travel out movement : the camera is zoomed out from
                                    * a given position. The target position depends on the key/mouse binding of this
                                    * state. If bound to a mouse button, the target position is the mouse position.
                                    * Otherwise, it is the center of the screen. It is disabled by default.
 * @property {State}    ZOOM        {@link State} describing camera zoom in and out movement.
 * @property {boolean}  enable      Defines whether all input will be communicated to the associated `Controls` or not.
                                    * Default is true.
 * @property {boolean}  enableKeys  Defines whether keyboard input will be communicated to the associated `Controls` or
                                    * not. Default is true.
 */

var StateControl = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(StateControl, _THREE$EventDispatche);

  var _super = _createSuper(StateControl);

  function StateControl(view) {
    var _this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, StateControl);
    _this = _super.call(this);
    _this._view = view;
    _this._domElement = view.domElement;
    var enabled = true;
    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'enabled', {
      get: function get() {
        return enabled;
      },
      set: function set(value) {
        if (!value) {
          _this.onKeyUp();

          _this.onPointerUp();
        }

        enabled = value;
      }
    }); // Set to true to disable use of the keys

    var enableKeys = true;
    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'enableKeys', {
      get: function get() {
        return enableKeys;
      },
      set: function set(value) {
        if (!value) {
          _this.onKeyUp();
        }

        enableKeys = value;
      }
    });
    _this.NONE = {};
    var currentState = _this.NONE;
    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'currentState', {
      get: function get() {
        return currentState;
      },
      set: function set(newState) {
        if (currentState !== newState) {
          var previous = currentState;
          currentState = newState;

          _this.dispatchEvent({
            type: 'state-changed',
            viewCoords: viewCoords,
            previous: previous
          });
        }
      }
    }); // TODO : the 4 next properties should be made private when ES6 allows it

    _this._clickTimeStamp = 0;
    _this._lastMousePressed = {
      viewCoords: new THREE.Vector2()
    };
    _this._currentMousePressed = undefined;
    _this._currentKeyPressed = undefined;
    _this._onPointerDown = _this.onPointerDown.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onPointerMove = _this.onPointerMove.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onPointerUp = _this.onPointerUp.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onMouseWheel = _this.onMouseWheel.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onKeyDown = _this.onKeyDown.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onKeyUp = _this.onKeyUp.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onBlur = _this.onBlur.bind((0, _assertThisInitialized2["default"])(_this));
    _this._onContextMenu = _this.onContextMenu.bind((0, _assertThisInitialized2["default"])(_this));

    _this._domElement.addEventListener('pointerdown', _this._onPointerDown, false);

    _this._domElement.addEventListener('wheel', _this._onMouseWheel, false); // The event listener is added on `window` so that key input can be accounted event if the view does not have
    // the focus. This can occur at page loading, when a mini map is displayed : the minimap initially has the focus
    // and key input would not be considered on the view's domElement.


    window.addEventListener('keydown', _this._onKeyDown, false);
    window.addEventListener('keyup', _this._onKeyUp, false); // Reset key/mouse when window loose focus

    window.addEventListener('blur', _this._onBlur); // disable context menu when right-clicking

    _this._domElement.addEventListener('contextmenu', _this._onContextMenu, false);

    _this.setFromOptions(options);

    return _this;
  }
  /**
   * get the state corresponding to the mouse button and the keyboard key. If the input relates to a trigger - a
   * single event which triggers movement, without the move of the mouse for instance -, dispatch a relevant event.
   * @param      {Number}  mouseButton  The mouse button
   * @param      {Number}  keyboard     The keyboard
   * @param      {Boolean} [double]     Value of the searched state `double` property
   * @return     {State}  the state corresponding
   */


  (0, _createClass2["default"])(StateControl, [{
    key: "inputToState",
    value: function inputToState(mouseButton, keyboard) {
      var _double = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      for (var _i = 0, _Object$keys = Object.keys(DEFAULT_STATES); _i < _Object$keys.length; _i++) {
        var key = _Object$keys[_i];
        var state = this[key];

        if (state.enable && state.mouseButton === mouseButton && state.keyboard === keyboard && state["double"] === _double) {
          // If the input relates to a state, returns it
          if (!state._trigger) {
            return state;
          } // If the input relates to a trigger (TRAVEL_IN, TRAVEL_OUT), dispatch a relevant event.


          this.dispatchEvent({
            type: state._event,
            // Dont pass viewCoords if the input is only a keyboard input.
            viewCoords: mouseButton !== undefined && viewCoords,
            direction: state._direction
          });
        }
      }

      return this.NONE;
    }
    /**
     * get the state corresponding to the number of finger on the pad
     *
     * @param      {Number}  finger  The number of finger
     * @return     {state}  the state corresponding
     */

  }, {
    key: "touchToState",
    value: function touchToState(finger) {
      for (var _i2 = 0, _Object$keys2 = Object.keys(DEFAULT_STATES); _i2 < _Object$keys2.length; _i2++) {
        var key = _Object$keys2[_i2];
        var state = this[key];

        if (state.enable && finger == state.finger) {
          return state;
        }
      }

      return this.NONE;
    }
    /**
     * Set the current StateControl {@link State} properties to given values.
     * @param {Object}  options     Object containing the `State` values to set current `StateControl` properties to.
                                    * The `enable` property do not necessarily need to be specified. In that case, the
                                    * previous value of this property will be kept for the new {@link State}.
     *
     * @example
     * // Switch bindings for PAN and MOVE_GLOBE actions, and disabling PANORAMIC movement :
     * view.controls.states.setFromOptions({
     *     PAN: {
     *         mouseButton: itowns.THREE.MOUSE.LEFT,
     *     },
     *     MOVE_GLOBE: {
     *         mouseButton: itowns.THREE.MOUSE.RIGHT,
     *     },
     *     PANORAMIC: {
     *         enable: false,
     *     },
     * };
     */

  }, {
    key: "setFromOptions",
    value: function setFromOptions(options) {
      for (var state in DEFAULT_STATES) {
        if ({}.hasOwnProperty.call(DEFAULT_STATES, state)) {
          var newState = {};
          newState = options[state] || this[state] || Object.assign(newState, DEFAULT_STATES[state]); // Copy the previous value of `enable` property if not defined in options

          if (options[state] && options[state].enable === undefined) {
            newState.enable = this[state].enable;
          } // If no value is provided for the `double` property,
          // defaults it to `false` instead of leaving it undefined


          newState["double"] = !!newState["double"]; // Copy the `_event` and `_trigger` properties

          newState._event = DEFAULT_STATES[state]._event;
          newState._trigger = DEFAULT_STATES[state]._trigger;
          newState._direction = DEFAULT_STATES[state]._direction;
          this[state] = newState;
        }
      }
    } // ---------- POINTER EVENTS : ----------

  }, {
    key: "onPointerDown",
    value: function onPointerDown(event) {
      if (!this.enabled) {
        return;
      }

      viewCoords.copy(this._view.eventToViewCoords(event));

      switch (event.pointerType) {
        case 'mouse':
          this._currentMousePressed = event.button;
          this.currentState = this.inputToState(this._currentMousePressed, this._currentKeyPressed, // Detect if the mouse button was pressed less than 500 ms before, and if the cursor has not moved two much
          // since previous click. If so, set dblclick to true.
          event.timeStamp - this._clickTimeStamp < 500 && this._lastMousePressed.button === this._currentMousePressed && this._lastMousePressed.viewCoords.distanceTo(viewCoords) < 5);
          this._clickTimeStamp = event.timeStamp;
          this._lastMousePressed.button = this._currentMousePressed;

          this._lastMousePressed.viewCoords.copy(viewCoords);

          break;
        // TODO : add touch event management

        default:
      }

      this._domElement.addEventListener('pointermove', this._onPointerMove, false);

      this._domElement.addEventListener('pointerup', this._onPointerUp, false);

      this._domElement.addEventListener('mouseleave', this._onPointerUp, false);
    }
  }, {
    key: "onPointerMove",
    value: function onPointerMove(event) {
      event.preventDefault();

      if (!this.enabled) {
        return;
      }

      viewCoords.copy(this._view.eventToViewCoords(event));

      switch (event.pointerType) {
        case 'mouse':
          this.dispatchEvent({
            type: this.currentState._event,
            viewCoords: viewCoords
          });
          break;
        // TODO : add touch event management

        default:
      }
    }
  }, {
    key: "onPointerUp",
    value: function onPointerUp() {
      if (!this.enabled) {
        return;
      }

      this._currentMousePressed = undefined;

      this._domElement.removeEventListener('pointermove', this._onPointerMove, false);

      this._domElement.removeEventListener('pointerup', this._onPointerUp, false);

      this._domElement.removeEventListener('mouseleave', this._onPointerUp, false);

      this.currentState = this.NONE;
    } // ---------- WHEEL EVENT : ----------

  }, {
    key: "onMouseWheel",
    value: function onMouseWheel(event) {
      event.preventDefault();

      if (this.enabled && this.ZOOM.enable) {
        this.dispatchEvent({
          type: this.ZOOM._event,
          delta: event.deltaY
        });
      }
    } // ---------- KEYBOARD EVENTS : ----------

  }, {
    key: "onKeyDown",
    value: function onKeyDown(event) {
      if (!this.enabled || !this.enableKeys) {
        return;
      }

      this._currentKeyPressed = event.keyCode;
      this.inputToState(this._currentMousePressed, this._currentKeyPressed);
    }
  }, {
    key: "onKeyUp",
    value: function onKeyUp() {
      if (!this.enabled || !this.enableKeys) {
        return;
      }

      this._currentKeyPressed = undefined;

      if (this._currentMousePressed === undefined) {
        this.currentState = this.NONE;
      }
    }
  }, {
    key: "onBlur",
    value: function onBlur() {
      this.onKeyUp();
      this.onPointerUp();
    }
  }, {
    key: "onContextMenu",
    value: function onContextMenu(event) {
      event.preventDefault();
    }
    /**
     * Remove all event listeners created within this instance of `StateControl`
     */

  }, {
    key: "dispose",
    value: function dispose() {
      this._clickTimeStamp = 0;
      this._lastMousePressed = undefined;
      this._currentKeyPressed = undefined;

      this._domElement.removeEventListener('pointerdown', this._onPointerDown, false);

      this._domElement.removeEventListener('pointermove', this._onPointerMove, false);

      this._domElement.removeEventListener('pointerup', this._onPointerUp, false);

      this._domElement.removeEventListener('wheel', this._onMouseWheel, false);

      this._domElement.removeEventListener('keydown', this._onKeyDown, false);

      this._domElement.removeEventListener('keyup', this._onKeyUp, false);

      window.removeEventListener('blur', this._onBlur);

      this._domElement.removeEventListener('contextmenu', this._onContextMenu, false);
    }
  }]);
  return StateControl;
}(THREE.EventDispatcher);

var _default = StateControl;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Controls/StreetControls.js":
/*!************************************************************!*\
  !*** ./node_modules/itowns/lib/Controls/StreetControls.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _tween = _interopRequireDefault(__webpack_require__(/*! @tweenjs/tween.js */ "./node_modules/@tweenjs/tween.js/dist/tween.esm.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _MainLoop = __webpack_require__(/*! ../Core/MainLoop */ "./node_modules/itowns/lib/Core/MainLoop.js");

var _FirstPersonControls2 = _interopRequireDefault(__webpack_require__(/*! ./FirstPersonControls */ "./node_modules/itowns/lib/Controls/FirstPersonControls.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var material = new THREE.MeshBasicMaterial({
  color: 0xffffff,
  depthTest: false,
  transparent: true,
  opacity: 0.5
});

function createCircle() {
  var geomCircle = new THREE.CircleGeometry(1, 32);
  return new THREE.Mesh(geomCircle, material);
}

function createRectangle() {
  var geomPlane = new THREE.PlaneGeometry(4, 2, 1);
  var rectangle = new THREE.Mesh(geomPlane, material);
  rectangle.rotateX(-Math.PI * 0.5);
  return rectangle;
} // update a surfaces node


function updateSurfaces(surfaces, position, norm) {
  surfaces.position.copy(position);
  surfaces.up.copy(position).normalize();
  surfaces.lookAt(norm);
  surfaces.updateMatrixWorld(true);
} // vector use in the pick method


var target = new THREE.Vector3();
var normal = new THREE.Vector3();
var normalMatrix = new THREE.Matrix3();
var up = new THREE.Vector3();
var startQuaternion = new THREE.Quaternion();

function pick(event, view, buildingsLayer) {
  var pickGround = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : function () {};
  var pickObject = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : function () {};
  var pickNothing = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : function () {};
  // get real distance to ground, with a specific method to pick on the elevation layer
  view.getPickingPositionFromDepth(view.eventToViewCoords(event), target);
  var distanceToGround = view.camera.camera3D.position.distanceTo(target); // pick on building layer

  var buildings = buildingsLayer ? view.pickObjectsAt(event, -1, buildingsLayer) : []; // to detect pick on building, compare first picked building distance to ground distance

  if (buildings.length && buildings[0].distance < distanceToGround) {
    // pick buildings
    // callback
    normalMatrix.getNormalMatrix(buildings[0].object.matrixWorld);
    normal.copy(buildings[0].face.normal).applyNormalMatrix(normalMatrix);
    pickObject(buildings[0].point, normal);
  } else if (view.tileLayer) {
    var far = view.camera.camera3D.far * 0.95;

    if (distanceToGround < far) {
      // compute normal
      if (view.tileLayer.isGlobeLayer) {
        up.copy(target).multiplyScalar(1.1);
      } else {
        up.set(0, 0, 1);
      } // callback


      pickGround(target, up);
    } else {
      // callback
      pickNothing();
    }
  } else {
    pickNothing();
  }
} // default function to compute time (in millis), used for the animation to move to a distance (in meter)


function computeTime(distance) {
  return 100 + Math.sqrt(distance) * 30;
}
/**
 * @classdesc Camera controls that can follow a path.
 * It is used to simulate a street view.
 * It stores a currentPosition and nextPosition, and do a camera traveling to go to next position.
 * It also manages picking on the ground and on other object, like building.
 * <ul> It manages 2 surfaces, used as helpers for the end user :
 * <li> a circle is shown when mouse is moving on the ground </li>
 * <li> a rectangle is shown when mouse is moving on other 3d object </li>
 * </ul>
 * <ul>
 * This controls is designed
 * <li> to move forward when user click on the ground (click and go) </li>
 * <li> to rotate the camera when user click on other object (click to look at) </li>
 * </ul>
 * <ul> Bindings inherited from FirstPersonControls
 * <li><b> up + down keys : </b> forward/backward </li>
 * <li><b> left + right keys: </b> strafing movements </li>
 * <li><b> pageUp + pageDown: </b> vertical movements </li>
 * <li><b> mouse click+drag: </b> pitch and yaw movements (as looking at a panorama) </li>
 * </ul>
 * <ul> Bindings added
 * <li><b> keys Z : </b> Move camera to the next position </li>
 * <li><b> keys S : </b> Move camera to the previous position </li>
 * <li><b> keys A : </b> Set camera to current position and look at next position</li>
 * <li><b> keys Q : </b> Set camera to current position and look at previous position</li>
 * </ul>
 * Note that it only works in globe view.
 * @property {number} keyGoToNextPosition key code to go to next position, default to 90 for key Z
 * @property {number} keyGoToPreviousPosition key code to go to previous position, default to 83 for key S
 * @property {number} keySetCameraToCurrentPositionAndLookAtNext key code set camera to current position, default to 65 for key  A
 * @property {number} keySetCameraToCurrentPositionAndLookAtPrevious key code set camera to current position, default to 81 for key  Q
 * @extends FirstPersonControls
 */


var StreetControls = /*#__PURE__*/function (_FirstPersonControls) {
  (0, _inherits2["default"])(StreetControls, _FirstPersonControls);

  var _super = _createSuper(StreetControls);

  /**
   * @constructor
   * @param { View } view - View where this control will be used
   * @param { Object } options - Configuration of this controls
   * @param { number } [options.wallMaxDistance=1000] - Maximum distance to click on a wall, in meter.
   * @param { number } [options.animationDurationWall=200] - Time in millis for the animation when clicking on a wall.
   * @param { THREE.Mesh } [options.surfaceGround] - Surface helper to see when mouse is on the ground, default is a transparent circle.
   * @param { THREE.Mesh } [options.surfaceWall] - Surface helper to see when mouse is on a wall, default is a transparent rectangle.
   * @param { string } [options.buildingsLayer='Buildings'] - Name of the building layer (used to pick on wall).
   * @param { function } [options.computeTime] - Function to compute time (in millis), used for the animation to move to a distance (in meter)
   * @param { number } [options.offset=4] - Altitude in meter up to the ground to move to when click on a target on the ground.
   */
  function StreetControls(view) {
    var _thisSuper, _this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, StreetControls);
    _this = _super.call(this, view, options);
    _this.isStreetControls = true;
    _this._onMouseOut = (0, _get2["default"])((_thisSuper = (0, _assertThisInitialized2["default"])(_this), (0, _getPrototypeOf2["default"])(StreetControls.prototype)), "onMouseUp", _thisSuper).bind((0, _assertThisInitialized2["default"])(_this));
    view.domElement.addEventListener('mouseout', _this._onMouseOut); // two positions used by this control : current and next

    _this.previousPosition = undefined;
    _this.currentPosition = undefined;
    _this.nextPosition = undefined;
    _this.keyGoToNextPosition = 90;
    _this.keyGoToPreviousPosition = 83;
    _this.keySetCameraToCurrentPositionAndLookAtNext = 65;
    _this.keySetCameraToCurrentPositionAndLookAtPrevious = 81; // Tween is used to make smooth animations

    _this.tweenGroup = new _tween["default"].Group(); // init surfaces used as helper for end user

    _this.surfaceGround = options.surfaceGround || createCircle();
    _this.surfaceWall = options.surfaceWall || createRectangle(); // surfaces is an object3D containing the two surfaces

    _this.surfaces = new THREE.Object3D();

    _this.surfaces.add(_this.surfaceGround);

    _this.surfaces.add(_this.surfaceWall);

    _this.view.scene.add(_this.surfaces);

    _this.wallMaxDistance = options.wallMaxDistance || 1000;
    _this.animationDurationWall = options.animationDurationWall || 200;
    _this.buildingsLayer = options.buildingsLayer;
    _this.computeTime = options.computeTime || computeTime;
    _this.offset = options.offset || 4;

    _this.transformationPositionPickOnTheGround = options.transformationPositionPickOnTheGround || function (position) {
      return position;
    };

    _this.end = _this.camera.clone();
    return _this;
  }

  (0, _createClass2["default"])(StreetControls, [{
    key: "setCurrentPosition",
    value: function setCurrentPosition(newCurrentPosition) {
      this.currentPosition = newCurrentPosition;
    }
  }, {
    key: "setNextPosition",
    value: function setNextPosition(newNextPosition) {
      this.nextPosition = newNextPosition;
    }
  }, {
    key: "setPreviousPosition",
    value: function setPreviousPosition(newPreviousPosition) {
      this.previousPosition = newPreviousPosition;
    }
  }, {
    key: "onMouseUp",
    value: function onMouseUp(event) {
      if (this.enabled == false) {
        return;
      }

      (0, _get2["default"])((0, _getPrototypeOf2["default"])(StreetControls.prototype), "onMouseUp", this).call(this);

      if (this._stateOnMouseDrag) {
        this._stateOnMouseDrag = false;
      } else {
        pick(event, this.view, this.buildingsLayer, this.onClickOnGround.bind(this), this.onClickOnWall.bind(this));
      }
    }
  }, {
    key: "onMouseMove",
    value: function onMouseMove(event) {
      var _this2 = this;

      if (this.enabled == false) {
        return;
      }

      (0, _get2["default"])((0, _getPrototypeOf2["default"])(StreetControls.prototype), "onMouseMove", this).call(this, event);

      if (this._isMouseDown) {
        // state mouse drag (move + mouse click)
        this._stateOnMouseDrag = true;
        this.stopAnimations();
      } else if (!this.tween) {
        // mouse pick and manage surfaces
        pick(event, this.view, this.buildingsLayer, function (groundTarget, normal) {
          updateSurfaces(_this2.surfaces, groundTarget, normal);
          _this2.surfaceGround.visible = true;
          _this2.surfaceWall.visible = false;
        }, function (wallTarget, normal) {
          updateSurfaces(_this2.surfaces, wallTarget, normal);
          _this2.surfaceWall.visible = true;
          _this2.surfaceGround.visible = false;
        });
        this.view.notifyChange(this.surfaces);
      }
    }
    /**
     * Sets the camera to the current position (stored in this controls), looking at the next position (also stored in this controls).
     *
     * @param      { boolean }  lookAtPrevious   look at the previous position rather than the next one
     */

  }, {
    key: "setCameraToCurrentPosition",
    value: function setCameraToCurrentPosition(lookAtPrevious) {
      if (lookAtPrevious) {
        this.setCameraOnPosition(this.currentPosition, this.previousPosition);
      } else {
        this.setCameraOnPosition(this.currentPosition, this.nextPosition);
      }
    }
    /**
     * Set the camera on a position, looking at another position.
     *
     * @param      { THREE.Vector3 }  position   The position to set the camera
     * @param      { THREE.Vector3 }  lookAt      The position where the camera look at.
     */

  }, {
    key: "setCameraOnPosition",
    value: function setCameraOnPosition(position, lookAt) {
      if (!position || !lookAt) {
        return;
      }

      this.camera.position.copy(position);

      if (this.view.tileLayer && this.view.tileLayer.isGlobeLayer) {
        this.camera.up.copy(position).normalize();
      } else {
        this.camera.up.set(0, 0, 1);
      }

      this.camera.lookAt(lookAt);
      this.camera.updateMatrixWorld();
      this.reset();
    }
    /**
     * Method called when user click on the ground.</br>
     * Note that this funtion contains default values that can be overrided, by overriding this class.
     *
     * @param {THREE.Vector3} position - The position
     */

  }, {
    key: "onClickOnGround",
    value: function onClickOnGround(position) {
      position = this.transformationPositionPickOnTheGround(position);

      if (this.view.tileLayer && this.view.tileLayer.isGlobeLayer) {
        up.copy(position).normalize();
      } else {
        up.set(0, 0, 1);
      }

      position.add(up.multiplyScalar(this.offset)); // compute time to go there

      var distance = this.camera.position.distanceTo(position); // 500 millis constant, plus an amount of time depending of the distance (but not linearly)

      var time = this.computeTime(distance); // move the camera

      this.moveCameraTo(position, time);
    }
    /**
     * Method called when user click on oject that is not the ground.</br>
     * Note that this function contains default values that can be overrided, by overriding this class.
     *
     * @param {THREE.Vector3} position - The position
     */

  }, {
    key: "onClickOnWall",
    value: function onClickOnWall(position) {
      var distance = this.camera.position.distanceTo(position); // can't click on a wall that is at 1km distance.

      if (distance < this.wallMaxDistance) {
        this.animateCameraLookAt(position, this.animationDurationWall);
      }
    }
    /**
     * Animate the camera to make it look at a position, in a given time
     *
     * @param { THREE.Vector3 }  position - Position to look at
     * @param { number } time - Time in millisecond
     */

  }, {
    key: "animateCameraLookAt",
    value: function animateCameraLookAt(position, time) {
      var _this3 = this;

      // stop existing animation
      this.stopAnimations(); // prepare start point and end point

      startQuaternion.copy(this.camera.quaternion);
      this.end.copy(this.camera);
      this.end.lookAt(position);
      this.tween = new _tween["default"].Tween({
        t: 0
      }, this.tweenGroup).to({
        t: 1
      }, time).easing(_tween["default"].Easing.Quadratic.Out).onComplete(function () {
        _this3.stopAnimations();
      }).onUpdate(function (d) {
        // 'manually' slerp the Quaternion to avoid rotation issues
        _this3.camera.quaternion.slerpQuaternions(startQuaternion, _this3.end.quaternion, d.t);
      }).start();

      this.animationFrameRequester = function () {
        _this3.tweenGroup.update(); // call reset from super class FirsPersonControls to make mouse rotation managed by FirstPersonControl still aligned


        _this3.reset();

        _this3.view.notifyChange(_this3.camera);
      };

      this.view.addFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.BEFORE_RENDER, this.animationFrameRequester);
      this.view.notifyChange(this.camera);
    }
    /**
     * Move the camera smoothly to the position, in a given time.
     *
     * @param { THREE.Vector3 }  position - Destination of the movement.
     * @param { number } time - Time in millisecond
     * @return { Promise }
     */

  }, {
    key: "moveCameraTo",
    value: function moveCameraTo(position) {
      var _this4 = this;

      var time = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 50;

      if (!position) {
        return Promise.resolve();
      }

      var resolve;
      var promise = new Promise(function (r) {
        resolve = r;
      });
      this.stopAnimations();
      this.tween = new _tween["default"].Tween(this.camera.position, this.tweenGroup) // Create a new tween that modifies camera position
      .to(position.clone(), time).easing(_tween["default"].Easing.Quadratic.Out) // Use an easing function to make the animation smooth.
      .onComplete(function () {
        _this4.stopAnimations();

        resolve();
      }).start();

      this.animationFrameRequester = function () {
        _this4.tweenGroup.update();

        _this4.view.notifyChange(_this4.camera);
      };

      this.view.addFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.BEFORE_RENDER, this.animationFrameRequester);
      this.view.notifyChange(this.camera);
      return promise;
    }
  }, {
    key: "stopAnimations",
    value: function stopAnimations() {
      if (this.tween) {
        this.tween.stop();
        this.tween = undefined;
      }

      if (this.animationFrameRequester) {
        this.view.removeFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.BEFORE_RENDER, this.animationFrameRequester);
        this.animationFrameRequester = null;
      }
    }
    /**
     * Move the camera to the 'currentPosition' stored in this control.
     */

  }, {
    key: "moveCameraToCurrentPosition",
    value: function moveCameraToCurrentPosition() {
      this.moveCameraTo(this.currentPosition);
    }
  }, {
    key: "onKeyDown",
    value: function onKeyDown(e) {
      if (this.enabled == false) {
        return;
      }

      (0, _get2["default"])((0, _getPrototypeOf2["default"])(StreetControls.prototype), "onKeyDown", this).call(this, e); // key to move to next position (default to Z)

      if (e.keyCode == this.keyGoToNextPosition) {
        this.moveCameraTo(this.nextPosition);
      } // key to move to previous position (default to S)


      if (e.keyCode == this.keyGoToPreviousPosition) {
        this.moveCameraTo(this.previousPosition);
      } // key to set to camera to current position looking at next position (default to A)


      if (e.keyCode == this.keySetCameraToCurrentPositionAndLookAtNext) {
        this.setCameraToCurrentPosition();
        this.view.notifyChange(this.view.camera.camera3D);
      } // key to set to camera to current position looking at previous position (default to Q)


      if (e.keyCode == this.keySetCameraToCurrentPositionAndLookAtPrevious) {
        this.setCameraToCurrentPosition(true);
        this.view.notifyChange(this.view.camera.camera3D);
      }
    }
  }, {
    key: "dispose",
    value: function dispose() {
      this.view.domElement.removeEventListener('mouseout', this._onMouseOut, false);
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(StreetControls.prototype), "dispose", this).call(this);
    }
  }]);
  return StreetControls;
}(_FirstPersonControls2["default"]);

var _default = StreetControls;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Converter/Feature2Mesh.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Converter/Feature2Mesh.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _toConsumableArray2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/toConsumableArray */ "./node_modules/@babel/runtime/helpers/toConsumableArray.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

var _classPrivateFieldSet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldSet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _earcut = _interopRequireDefault(__webpack_require__(/*! earcut */ "./node_modules/earcut/src/earcut.js"));

var _Feature = __webpack_require__(/*! ../Core/Feature */ "./node_modules/itowns/lib/Core/Feature.js");

var _ReferencingLayerProperties = _interopRequireDefault(__webpack_require__(/*! ../Layer/ReferencingLayerProperties */ "./node_modules/itowns/lib/Layer/ReferencingLayerProperties.js"));

var _Undeprecator = __webpack_require__(/*! ../Core/Deprecated/Undeprecator */ "./node_modules/itowns/lib/Core/Deprecated/Undeprecator.js");

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

var _OrientationUtils = _interopRequireDefault(__webpack_require__(/*! ../Utils/OrientationUtils */ "./node_modules/itowns/lib/Utils/OrientationUtils.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

var coord = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var dim_ref = new THREE.Vector2();
var dim = new THREE.Vector2();
var extent = new _Extent["default"]('EPSG:4326', 0, 0, 0, 0);

var _color = new THREE.Color();

var maxValueUint8 = Math.pow(2, 8) - 1;
var maxValueUint16 = Math.pow(2, 16) - 1;
var maxValueUint32 = Math.pow(2, 32) - 1;
var crsWGS84 = 'EPSG:4326';

var _currentCrs = /*#__PURE__*/new WeakMap();

var _originalCrs = /*#__PURE__*/new WeakMap();

var _collection = /*#__PURE__*/new WeakMap();

var _place = /*#__PURE__*/new WeakMap();

var FeatureMesh = /*#__PURE__*/function (_THREE$Group) {
  (0, _inherits2["default"])(FeatureMesh, _THREE$Group);

  var _super = _createSuper(FeatureMesh);

  function FeatureMesh(meshes, collection) {
    var _THREE$Group2;

    var _this;

    (0, _classCallCheck2["default"])(this, FeatureMesh);
    _this = _super.call(this);

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _currentCrs, {
      writable: true,
      value: void 0
    });

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _originalCrs, {
      writable: true,
      value: void 0
    });

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _collection, {
      writable: true,
      value: new THREE.Group()
    });

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _place, {
      writable: true,
      value: new THREE.Group()
    });

    _this.meshes = (_THREE$Group2 = new THREE.Group()).add.apply(_THREE$Group2, (0, _toConsumableArray2["default"])(meshes));
    (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _collection, new THREE.Group().add(_this.meshes));
    (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _collection).quaternion.copy(collection.quaternion);
    (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _collection).position.copy(collection.position);
    (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _collection).scale.copy(collection.scale);
    (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _collection).updateMatrix();
    (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _originalCrs, collection.crs);
    (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _currentCrs, (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _originalCrs));
    _this.extent = collection.extent;

    _this.add((0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _place).add((0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _collection)));

    return _this;
  }

  (0, _createClass2["default"])(FeatureMesh, [{
    key: "as",
    value: function as(crs) {
      if ((0, _classPrivateFieldGet2["default"])(this, _currentCrs) !== crs) {
        (0, _classPrivateFieldSet2["default"])(this, _currentCrs, crs);

        if (crs == (0, _classPrivateFieldGet2["default"])(this, _originalCrs)) {
          // reset transformation
          this.place.position.set(0, 0, 0);
          this.position.set(0, 0, 0);
          this.scale.set(1, 1, 1);
          this.quaternion.identity();
        } else {
          // calculate the scale transformation to transform the feature.extent
          // to feature.extent.as(crs)
          coord.crs = _Crs["default"].formatToEPSG((0, _classPrivateFieldGet2["default"])(this, _originalCrs));
          extent.copy(this.extent).applyMatrix4((0, _classPrivateFieldGet2["default"])(this, _collection).matrix);
          extent.as(coord.crs, extent);
          extent.spatialEuclideanDimensions(dim_ref);
          extent.planarDimensions(dim);

          if (dim.x && dim.y) {
            this.scale.copy(dim_ref).divide(dim).setZ(1);
          } // Position and orientation
          // remove original position


          (0, _classPrivateFieldGet2["default"])(this, _place).position.copy((0, _classPrivateFieldGet2["default"])(this, _collection).position).negate(); // get mesh coordinate

          coord.setFromVector3((0, _classPrivateFieldGet2["default"])(this, _collection).position); // get method to calculate orientation

          var crsInput = (0, _classPrivateFieldGet2["default"])(this, _originalCrs) == 'EPSG:3857' ? crsWGS84 : (0, _classPrivateFieldGet2["default"])(this, _originalCrs);

          var crs2crs = _OrientationUtils["default"].quaternionFromCRSToCRS(crsInput, crs); // calculate orientation to crs


          crs2crs(coord.as(crsWGS84), this.quaternion); // transform position to crs

          coord.as(crs, coord).toVector3(this.position);
        }
      }

      return this;
    }
  }]);
  return FeatureMesh;
}(THREE.Group);

function toColor(color) {
  if (color) {
    if (color.type == 'Color') {
      return color;
    } else {
      return _color.set(color);
    }
  } else {
    return _color.set(Math.random() * 0xffffff);
  }
}

function fillColorArray(colors, length, color) {
  var offset = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
  offset *= 3;
  var len = offset + length * 3;

  for (var i = offset; i < len; i += 3) {
    colors[i] = color.r * 255;
    colors[i + 1] = color.g * 255;
    colors[i + 2] = color.b * 255;
  }
}

function fillBatchIdArray(batchId, batchIdArray, start, end) {
  for (var i = start; i < end; i++) {
    batchIdArray[i] = batchId;
  }
}

function getIntArrayFromSize(data, size) {
  if (size <= maxValueUint8) {
    return new Uint8Array(data);
  } else if (size <= maxValueUint16) {
    return new Uint16Array(data);
  } else {
    return new Uint32Array(data);
  }
}
/**
 * Convert coordinates to vertices positionned at a given altitude
 *
 * @param      {number[]} ptsIn - Coordinates of a feature.
 * @param      {number[]} normals - Coordinates of a feature.
 * @param      {number[]} target - Target to copy result.
 * @param      {number}  zTranslation - Translation on Z axe.
 * @param      {number} offsetOut - The offset array value to copy on target
 * @param      {number} countIn - The count of coordinates to read in ptsIn
 * @param      {number} startIn - The offser array to strat reading in ptsIn
 */


function coordinatesToVertices(ptsIn, normals, target, zTranslation) {
  var offsetOut = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
  var countIn = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : ptsIn.length / 3;
  var startIn = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : offsetOut;
  startIn *= 3;
  countIn *= 3;
  offsetOut *= 3;
  var endIn = startIn + countIn;

  if (normals) {
    for (var i = startIn, j = offsetOut; i < endIn; i += 3, j += 3) {
      // move the vertex following the normal, to put the point on the good altitude
      // fill the vertices array at the offset position
      target[j] = ptsIn[i] + normals[i] * zTranslation;
      target[j + 1] = ptsIn[i + 1] + normals[i + 1] * zTranslation;
      target[j + 2] = ptsIn[i + 2] + normals[i + 2] * zTranslation;
    }
  } else {
    for (var _i = startIn, _j = offsetOut; _i < endIn; _i += 3, _j += 3) {
      // move the vertex following the z axe
      target[_j] = ptsIn[_i];
      target[_j + 1] = ptsIn[_i + 1];
      target[_j + 2] = ptsIn[_i + 2] + zTranslation;
    }
  }
}
/*
 * Add indices for the side faces.
 * We loop over the contour and create a side face made of two triangles.
 *
 * For a ring made of (n) coordinates, there are (n*2) vertices.
 * The (n) first vertices are on the roof, the (n) other vertices are on the floor.
 *
 * If index (i) is on the roof, index (i+length) is on the floor.
 *
 * @param {number[]} indices - Array of indices to push to
 * @param {number} length - Total vertices count in the geom (excluding the extrusion ones)
 * @param {number} offset
 * @param {number} count
 * @param {boolean} isClockWise - Wrapping direction
 */


function addExtrudedPolygonSideFaces(indices, length, offset, count, isClockWise) {
  // loop over contour length, and for each point of the contour,
  // add indices to make two triangle, that make the side face
  var startIndice = indices.length;
  indices.length += (count - 1) * 6;

  for (var i = offset, j = startIndice; i < offset + count - 1; ++i, ++j) {
    if (isClockWise) {
      // first triangle indices
      indices[j] = i;
      indices[++j] = i + length;
      indices[++j] = i + 1; // second triangle indices

      indices[++j] = i + 1;
      indices[++j] = i + length;
      indices[++j] = i + length + 1;
    } else {
      // first triangle indices
      indices[j] = i + length;
      indices[++j] = i;
      indices[++j] = i + length + 1; // second triangle indices

      indices[++j] = i + length + 1;
      indices[++j] = i;
      indices[++j] = i + 1;
    }
  }
}

function featureToPoint(feature, options) {
  var ptsIn = feature.vertices;
  var normals = feature.normals;
  var colors = new Uint8Array(ptsIn.length);
  var batchIds = options.batchId ? new Uint32Array(ptsIn.length / 3) : undefined;
  var featureId = 0;
  var vertices;
  var zTranslation = options.GlobalZTrans - feature.altitude.min;

  if (zTranslation !== 0) {
    vertices = new Float32Array(ptsIn.length);
    coordinatesToVertices(ptsIn, normals, vertices, zTranslation);
  } else {
    vertices = new Float32Array(ptsIn);
  }

  var globals = {
    point: true
  };

  var _iterator = _createForOfIteratorHelper(feature.geometries),
      _step;

  try {
    var _loop = function () {
      var geometry = _step.value;
      var style = feature.style.drawingStylefromContext({
        globals: globals,
        properties: function properties() {
          return geometry.properties;
        }
      });
      var start = geometry.indices[0].offset;
      var count = geometry.indices[0].count;
      fillColorArray(colors, count, toColor(style.point.color), start);

      if (batchIds) {
        var id = options.batchId(geometry.properties, featureId);
        fillBatchIdArray(id, batchIds, start, start + count);
        featureId++;
      }
    };

    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      _loop();
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }

  var geom = new THREE.BufferGeometry();
  geom.setAttribute('position', new THREE.BufferAttribute(vertices, 3));
  geom.setAttribute('color', new THREE.BufferAttribute(colors, 3, true));

  if (batchIds) {
    geom.setAttribute('batchId', new THREE.BufferAttribute(batchIds, 1));
  }

  options.pointMaterial.size = feature.style.point.radius;
  return new THREE.Points(geom, options.pointMaterial);
}

function featureToLine(feature, options) {
  var ptsIn = feature.vertices;
  var normals = feature.normals;
  var colors = new Uint8Array(ptsIn.length);
  var count = ptsIn.length / 3;
  var batchIds = options.batchId ? new Uint32Array(count) : undefined;
  var featureId = 0;
  var vertices;
  var zTranslation = options.GlobalZTrans - feature.altitude.min;

  if (zTranslation != 0) {
    vertices = new Float32Array(ptsIn.length);
    coordinatesToVertices(ptsIn, normals, vertices, zTranslation);
  } else {
    vertices = new Float32Array(ptsIn);
  }

  var geom = new THREE.BufferGeometry();
  geom.setAttribute('position', new THREE.BufferAttribute(vertices, 3));
  var lines; // TODO CREATE material for each feature

  options.lineMaterial.linewidth = feature.style.stroke.width;
  var globals = {
    stroke: true
  };

  if (feature.geometries.length > 1) {
    var countIndices = (count - feature.geometries.length) * 2;
    var indices = getIntArrayFromSize(countIndices, count);
    var i = 0; // Multi line case

    var _iterator2 = _createForOfIteratorHelper(feature.geometries),
        _step2;

    try {
      var _loop2 = function () {
        var geometry = _step2.value;
        var style = feature.style.drawingStylefromContext({
          globals: globals,
          properties: function properties() {
            return geometry.properties;
          }
        });
        var start = geometry.indices[0].offset; // To avoid integer overflow with indice value (16 bits)

        if (start > 0xffff) {
          console.warn('Feature to Line: integer overflow, too many points in lines');
          return "break";
        }

        var count = geometry.indices[0].count;
        var end = start + count;
        fillColorArray(colors, count, toColor(style.stroke.color), start);

        for (var j = start; j < end - 1; j++) {
          if (j < 0xffff) {
            indices[i++] = j;
            indices[i++] = j + 1;
          } else {
            break;
          }
        }

        if (batchIds) {
          var id = options.batchId(geometry.properties, featureId);
          fillBatchIdArray(id, batchIds, start, end);
          featureId++;
        }
      };

      for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
        var _ret = _loop2();

        if (_ret === "break") break;
      }
    } catch (err) {
      _iterator2.e(err);
    } finally {
      _iterator2.f();
    }

    geom.setAttribute('color', new THREE.BufferAttribute(colors, 3, true));

    if (batchIds) {
      geom.setAttribute('batchId', new THREE.BufferAttribute(batchIds, 1));
    }

    geom.setIndex(new THREE.BufferAttribute(indices, 1));
    lines = new THREE.LineSegments(geom, options.lineMaterial);
  } else {
    var style = feature.style.drawingStylefromContext({
      globals: globals,
      properties: function properties() {
        return feature.geometries[0].properties;
      }
    });
    fillColorArray(colors, count, toColor(style.stroke.color));
    geom.setAttribute('color', new THREE.BufferAttribute(colors, 3, true));

    if (batchIds) {
      var id = options.batchId(feature.geometries[0].properties, featureId);
      fillBatchIdArray(id, batchIds, 0, count);
      geom.setAttribute('batchId', new THREE.BufferAttribute(batchIds, 1));
    }

    lines = new THREE.Line(geom, options.lineMaterial);
  }

  return lines;
}

function featureToPolygon(feature, options) {
  var ptsIn = feature.vertices;
  var normals = feature.normals;
  var vertices;
  var zTranslation = options.GlobalZTrans - feature.altitude.min;

  if (zTranslation != 0) {
    vertices = new Float32Array(ptsIn.length);
    coordinatesToVertices(ptsIn, normals, vertices, zTranslation);
  } else {
    vertices = new Float32Array(ptsIn);
  }

  var colors = new Uint8Array(ptsIn.length);
  var indices = [];
  var batchIds = options.batchId ? new Uint32Array(vertices.length / 3) : undefined;
  var globals = {
    fill: true
  };
  var featureId = 0;

  var _iterator3 = _createForOfIteratorHelper(feature.geometries),
      _step3;

  try {
    var _loop3 = function () {
      var geometry = _step3.value;
      var start = geometry.indices[0].offset; // To avoid integer overflow with index value (32 bits)

      if (start > maxValueUint32) {
        console.warn('Feature to Polygon: integer overflow, too many points in polygons');
        return "break";
      }

      var style = feature.style.drawingStylefromContext({
        globals: globals,
        properties: function properties() {
          return geometry.properties;
        }
      });
      var lastIndice = geometry.indices.slice(-1)[0];
      var end = lastIndice.offset + lastIndice.count;
      fillColorArray(colors, end - start, toColor(style.fill.color), start);
      var geomVertices = vertices.slice(start * 3, end * 3);
      var holesOffsets = geometry.indices.map(function (i) {
        return i.offset - start;
      }).slice(1);
      var triangles = (0, _earcut["default"])(geomVertices, holesOffsets, 3);
      var startIndice = indices.length;
      indices.length += triangles.length;

      for (var i = 0; i < triangles.length; i++) {
        indices[startIndice + i] = triangles[i] + start;
      }

      if (batchIds) {
        var id = options.batchId(geometry.properties, featureId);
        fillBatchIdArray(id, batchIds, start, end);
        featureId++;
      }
    };

    for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
      var _ret2 = _loop3();

      if (_ret2 === "break") break;
    }
  } catch (err) {
    _iterator3.e(err);
  } finally {
    _iterator3.f();
  }

  var geom = new THREE.BufferGeometry();
  geom.setAttribute('position', new THREE.BufferAttribute(vertices, 3));
  geom.setAttribute('color', new THREE.BufferAttribute(colors, 3, true));

  if (batchIds) {
    geom.setAttribute('batchId', new THREE.BufferAttribute(batchIds, 1));
  }

  geom.setIndex(new THREE.BufferAttribute(getIntArrayFromSize(indices, vertices.length / 3), 1));
  return new THREE.Mesh(geom, options.polygonMaterial);
}

function area(contour, offset, count) {
  offset *= 3;
  var n = offset + count * 3;
  var a = 0.0;

  for (var p = n - 3, q = offset; q < n; p = q, q += 3) {
    a += contour[p] * contour[q + 1] - contour[q] * contour[p + 1];
  }

  return a * 0.5;
}

var bottomColor = new THREE.Color();

function featureToExtrudedPolygon(feature, options) {
  var ptsIn = feature.vertices;
  var normals = feature.normals;
  var vertices = new Float32Array(ptsIn.length * 2);
  var colors = new Uint8Array(ptsIn.length * 2);
  var indices = [];
  var totalVertices = ptsIn.length / 3;
  var batchIds = options.batchId ? new Uint32Array(vertices.length / 3) : undefined;
  var featureId = 0;
  var z = options.GlobalZTrans - feature.altitude.min;
  var globals = {
    fill: true
  };

  var _iterator4 = _createForOfIteratorHelper(feature.geometries),
      _step4;

  try {
    var _loop4 = function () {
      var _geometry$indices$0$c;

      var geometry = _step4.value;
      var style = feature.style.drawingStylefromContext({
        globals: globals,
        properties: function properties() {
          return geometry.properties;
        }
      }); // topColor is assigned to the top of extruded polygon

      var topColor = toColor(style.fill.color); // bottomColor is assigned to the bottom of extruded polygon

      bottomColor.copy(topColor);
      bottomColor.multiplyScalar(0.5);
      var start = geometry.indices[0].offset;
      var lastIndice = geometry.indices.slice(-1)[0];
      var end = lastIndice.offset + lastIndice.count;
      var count = end - start;
      var isClockWise = (_geometry$indices$0$c = geometry.indices[0].ccw) !== null && _geometry$indices$0$c !== void 0 ? _geometry$indices$0$c : area(ptsIn, start, count) < 0;
      coordinatesToVertices(ptsIn, normals, vertices, z, start, count);
      fillColorArray(colors, count, bottomColor, start);
      var startTop = start + totalVertices;
      var endTop = end + totalVertices;
      coordinatesToVertices(ptsIn, normals, vertices, z + style.fill.extrusion_height, startTop, count, start);
      fillColorArray(colors, count, topColor, startTop);
      var geomVertices = vertices.slice(startTop * 3, endTop * 3);
      var holesOffsets = geometry.indices.map(function (i) {
        return i.offset - start;
      }).slice(1);
      var triangles = (0, _earcut["default"])(geomVertices, holesOffsets, 3);
      var startIndice = indices.length;
      indices.length += triangles.length;

      for (var i = 0; i < triangles.length; i++) {
        indices[startIndice + i] = triangles[i] + startTop;
      } // add extruded contour


      addExtrudedPolygonSideFaces(indices, totalVertices, geometry.indices[0].offset, geometry.indices[0].count, isClockWise); // add extruded holes

      for (var _i2 = 1; _i2 < geometry.indices.length; _i2++) {
        var _indice$ccw;

        var indice = geometry.indices[_i2];
        addExtrudedPolygonSideFaces(indices, totalVertices, indice.offset, indice.count, !((_indice$ccw = indice.ccw) !== null && _indice$ccw !== void 0 ? _indice$ccw : isClockWise));
      }

      if (batchIds) {
        var id = options.batchId(geometry.properties, featureId);
        fillBatchIdArray(id, batchIds, start, end);
        fillBatchIdArray(id, batchIds, startTop, endTop);
        featureId++;
      }
    };

    for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
      _loop4();
    }
  } catch (err) {
    _iterator4.e(err);
  } finally {
    _iterator4.f();
  }

  var geom = new THREE.BufferGeometry();
  geom.setAttribute('position', new THREE.BufferAttribute(vertices, 3));
  geom.setAttribute('color', new THREE.BufferAttribute(colors, 3, true));

  if (batchIds) {
    geom.setAttribute('batchId', new THREE.BufferAttribute(batchIds, 1));
  }

  geom.setIndex(new THREE.BufferAttribute(getIntArrayFromSize(indices, vertices.length / 3), 1));
  return new THREE.Mesh(geom, options.polygonMaterial);
}
/**
 * Convert a [Feature]{@link Feature} to a Mesh
 *
 * @param {Feature} feature - the feature to convert
 * @param {Object} options - options controlling the conversion
 * @return {THREE.Mesh} mesh
 */


function featureToMesh(feature, options) {
  if (!feature.vertices) {
    return;
  }

  var mesh;

  switch (feature.type) {
    case _Feature.FEATURE_TYPES.POINT:
      mesh = featureToPoint(feature, options);
      break;

    case _Feature.FEATURE_TYPES.LINE:
      mesh = featureToLine(feature, options);
      break;

    case _Feature.FEATURE_TYPES.POLYGON:
      if (feature.style.fill.extrusion_height) {
        mesh = featureToExtrudedPolygon(feature, options);
      } else {
        mesh = featureToPolygon(feature, options);
      }

      break;

    default:
  } // set mesh material


  mesh.material.vertexColors = true;
  mesh.material.color = new THREE.Color(0xffffff);
  mesh.feature = feature;
  mesh.position.z = feature.altitude.min - options.GlobalZTrans;

  if (options.layer) {
    mesh.layer = options.layer;
    mesh.layers.set(options.layer.threejsLayer);
  }

  return mesh;
}
/**
 * @module Feature2Mesh
 */


var _default = {
  /**
   * Return a function that converts [Features]{@link module:GeoJsonParser} to Meshes. Feature collection will be converted to a
   * a THREE.Group.
   *
   * @param {Object} options - options controlling the conversion
   * @param {function} [options.batchId] - optional function to create batchId attribute.
   * It is passed the feature property and the feature index. As the batchId is using an unsigned int structure on 32 bits,
   * the batchId could be between 0 and 4,294,967,295.
   * @return {function}
   * @example <caption>Example usage of batchId with featureId.</caption>
   * view.addLayer({
   *     id: 'WFS Buildings',
   *     type: 'geometry',
   *     update: itowns.FeatureProcessing.update,
   *     convert: itowns.Feature2Mesh.convert({
   *         batchId: (property, featureId) => featureId,
   *     }),
   *     filter: acceptFeature,
   *     source,
   * });
   *
   * @example <caption>Example usage of batchId with property.</caption>
   * view.addLayer({
   *     id: 'WFS Buildings',
   *     type: 'geometry',
   *     update: itowns.FeatureProcessing.update,
   *     convert: itowns.Feature2Mesh.convert({
   *         batchId: (property, featureId) => property.house ? 10 : featureId,
   *         }),
   *     filter: acceptFeature,
   *     source,
   * });
   */
  convert: function convert() {
    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    (0, _Undeprecator.deprecatedFeature2MeshOptions)(options);
    return function (collection) {
      if (!collection) {
        return;
      }

      if (!options.pointMaterial) {
        // Opacity and wireframe refered with layer properties
        // TODO :next step is move these properties to Style
        options.pointMaterial = (0, _ReferencingLayerProperties["default"])(new THREE.PointsMaterial(), this);
        options.lineMaterial = (0, _ReferencingLayerProperties["default"])(new THREE.LineBasicMaterial(), this);
        options.polygonMaterial = (0, _ReferencingLayerProperties["default"])(new THREE.MeshBasicMaterial(), this);
        options.layer = this;
      }

      var features = collection.features;

      if (!features || features.length == 0) {
        return;
      }

      options.GlobalZTrans = collection.center.z;
      var meshes = features.map(function (feature) {
        return featureToMesh(feature, options);
      });
      var featureNode = new FeatureMesh(meshes, collection);
      return featureNode;
    };
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Converter/Feature2Texture.js":
/*!**************************************************************!*\
  !*** ./node_modules/itowns/lib/Converter/Feature2Texture.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Feature = __webpack_require__(/*! ../Core/Feature */ "./node_modules/itowns/lib/Core/Feature.js");

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

var svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
var matrix = svg.createSVGMatrix();

function drawPolygon(ctx, vertices) {
  var indices = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [{
    offset: 0,
    count: 1
  }];
  var style = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
  var size = arguments.length > 4 ? arguments[4] : undefined;
  var extent = arguments.length > 5 ? arguments[5] : undefined;
  var invCtxScale = arguments.length > 6 ? arguments[6] : undefined;
  var canBeFilled = arguments.length > 7 ? arguments[7] : undefined;

  if (vertices.length === 0) {
    return;
  }

  if (style.length) {
    var _iterator = _createForOfIteratorHelper(style),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var s = _step.value;

        _drawPolygon(ctx, vertices, indices, s, size, extent, invCtxScale, canBeFilled);
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }
  } else {
    _drawPolygon(ctx, vertices, indices, style, size, extent, invCtxScale, canBeFilled);
  }
}

function _drawPolygon(ctx, vertices, indices, style, size, extent, invCtxScale, canBeFilled) {
  // build contour
  ctx.beginPath();

  var _iterator2 = _createForOfIteratorHelper(indices),
      _step2;

  try {
    for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
      var indice = _step2.value;

      if (indice.extent && indice.extent.intersectsExtent(extent)) {
        var offset = indice.offset * size;
        var count = offset + indice.count * size;
        ctx.moveTo(vertices[offset], vertices[offset + 1]);

        for (var j = offset + size; j < count; j += size) {
          ctx.lineTo(vertices[j], vertices[j + 1]);
        }
      }
    } // draw line or edge of polygon

  } catch (err) {
    _iterator2.e(err);
  } finally {
    _iterator2.f();
  }

  if (style.stroke) {
    strokeStyle(style, ctx, invCtxScale);
    ctx.stroke();
  } // fill polygon only


  if (canBeFilled && style.fill) {
    fillStyle(style, ctx, invCtxScale);
    ctx.fill();
  }
}

function fillStyle(style, ctx, invCtxScale) {
  if (style.fill.pattern && ctx.fillStyle.src !== style.fill.pattern.src) {
    ctx.fillStyle = ctx.createPattern(style.fill.pattern, 'repeat');

    if (ctx.fillStyle.setTransform) {
      ctx.fillStyle.setTransform(matrix.scale(invCtxScale));
    } else {
      console.warn('Raster pattern isn\'t completely supported on Ie and edge');
    }
  } else if (ctx.fillStyle !== style.fill.color) {
    ctx.fillStyle = style.fill.color;
  }

  if (style.fill.opacity !== ctx.globalAlpha) {
    ctx.globalAlpha = style.fill.opacity;
  }
}

function strokeStyle(style, ctx, invCtxScale) {
  if (ctx.strokeStyle !== style.stroke.color) {
    ctx.strokeStyle = style.stroke.color;
  }

  var width = (style.stroke.width || 2.0) * invCtxScale;

  if (ctx.lineWidth !== width) {
    ctx.lineWidth = width;
  }

  var alpha = style.stroke.opacity == undefined ? 1.0 : style.stroke.opacity;

  if (alpha !== ctx.globalAlpha && typeof alpha == 'number') {
    ctx.globalAlpha = alpha;
  }

  if (ctx.lineCap !== style.stroke.lineCap) {
    ctx.lineCap = style.stroke.lineCap;
  }

  ctx.setLineDash(style.stroke.dasharray.map(function (a) {
    return a * invCtxScale * 2;
  }));
}

function drawPoint(ctx, x, y) {
  var style = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
  var invCtxScale = arguments.length > 4 ? arguments[4] : undefined;
  ctx.beginPath();
  var opacity = style.point.opacity == undefined ? 1.0 : style.point.opacity;

  if (opacity !== ctx.globalAlpha) {
    ctx.globalAlpha = opacity;
  }

  ctx.arc(x, y, (style.point.radius || 3.0) * invCtxScale, 0, 2 * Math.PI, false);

  if (style.point.color) {
    ctx.fillStyle = style.point.color;
    ctx.fill();
  }

  if (style.point.line) {
    ctx.lineWidth = (style.point.width || 1.0) * invCtxScale;
    ctx.strokeStyle = style.point.line;
    ctx.stroke();
  }
}

var coord = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);

function drawFeature(ctx, feature, extent, style, invCtxScale) {
  var extentDim = extent.planarDimensions();
  var scaleRadius = extentDim.x / ctx.canvas.width;
  var globals = {
    zoom: extent.zoom
  };

  var _iterator3 = _createForOfIteratorHelper(feature.geometries),
      _step3;

  try {
    var _loop = function () {
      var geometry = _step3.value;

      if (geometry.extent.intersectsExtent(extent)) {
        var contextStyle = (geometry.properties.style || style).drawingStylefromContext({
          globals: globals,
          properties: function properties() {
            return geometry.properties;
          }
        });

        if (contextStyle) {
          if (feature.type === _Feature.FEATURE_TYPES.POINT) {
            // cross multiplication to know in the extent system the real size of
            // the point
            var px = (Math.round(contextStyle.point.radius * invCtxScale) || 3 * invCtxScale) * scaleRadius;

            var _iterator4 = _createForOfIteratorHelper(geometry.indices),
                _step4;

            try {
              for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
                var indice = _step4.value;
                var offset = indice.offset * feature.size;
                var count = offset + indice.count * feature.size;

                for (var j = offset; j < count; j += feature.size) {
                  coord.setFromArray(feature.vertices, j);

                  if (extent.isPointInside(coord, px)) {
                    drawPoint(ctx, feature.vertices[j], feature.vertices[j + 1], contextStyle, invCtxScale);
                  }
                }
              }
            } catch (err) {
              _iterator4.e(err);
            } finally {
              _iterator4.f();
            }
          } else {
            drawPolygon(ctx, feature.vertices, geometry.indices, contextStyle, feature.size, extent, invCtxScale, feature.type == _Feature.FEATURE_TYPES.POLYGON);
          }
        }
      }
    };

    for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
      _loop();
    }
  } catch (err) {
    _iterator3.e(err);
  } finally {
    _iterator3.f();
  }
}

var origin = new THREE.Vector3();
var dimension = new THREE.Vector3(0, 0, 1);
var scale = new THREE.Vector3();
var quaternion = new THREE.Quaternion();
var world2texture = new THREE.Matrix4();
var feature2texture = new THREE.Matrix4();
var worldTextureOrigin = new THREE.Vector3();
var featureExtent = new _Extent["default"]('EPSG:4326', 0, 0, 0, 0);
var _default = {
  // backgroundColor is a THREE.Color to specify a color to fill the texture
  // with, given there is no feature passed in parameter
  createTextureFromFeature: function createTextureFromFeature(collection, extent, sizeTexture, style, backgroundColor) {
    var texture;

    if (collection) {
      // A texture is instancied drawn canvas
      // origin and dimension are used to transform the feature's coordinates to canvas's space
      extent.planarDimensions(dimension);
      var c = document.createElement('canvas');
      coord.crs = extent.crs;
      c.width = sizeTexture;
      c.height = sizeTexture;
      var ctx = c.getContext('2d');

      if (backgroundColor) {
        ctx.fillStyle = backgroundColor.getStyle();
        ctx.fillRect(0, 0, sizeTexture, sizeTexture);
      }

      ctx.globalCompositeOperation = style.globalCompositeOperation || 'source-over';
      ctx.imageSmoothingEnabled = false;
      ctx.lineJoin = 'round'; // transform extent to feature projection

      extent.as(collection.crs, featureExtent); // transform extent to local system

      featureExtent.applyMatrix4(collection.matrixWorldInverse); // compute matrix transformation `world2texture` to convert coordinates to texture coordinates

      if (collection.isInverted) {
        worldTextureOrigin.set(extent.west, extent.north, 0);
        scale.set(ctx.canvas.width, -ctx.canvas.height, 1.0).divide(dimension);
      } else {
        worldTextureOrigin.set(extent.west, extent.south, 0);
        scale.set(ctx.canvas.width, ctx.canvas.height, 1.0).divide(dimension);
      }

      world2texture.compose(worldTextureOrigin.multiply(scale).negate(), quaternion, scale); // compute matrix transformation `feature2texture` to convert features coordinates to texture coordinates

      feature2texture.multiplyMatrices(world2texture, collection.matrixWorld);
      feature2texture.decompose(origin, quaternion, scale);
      ctx.setTransform(scale.x, 0, 0, scale.y, origin.x, origin.y); // to scale line width and radius circle

      var invCtxScale = Math.abs(1 / scale.x); // Draw the canvas

      var _iterator5 = _createForOfIteratorHelper(collection.features),
          _step5;

      try {
        for (_iterator5.s(); !(_step5 = _iterator5.n()).done;) {
          var feature = _step5.value;
          drawFeature(ctx, feature, featureExtent, feature.style || style, invCtxScale);
        }
      } catch (err) {
        _iterator5.e(err);
      } finally {
        _iterator5.f();
      }

      texture = new THREE.CanvasTexture(c);
      texture.flipY = collection.isInverted;
    } else if (backgroundColor) {
      var data = new Uint8Array(3);
      data[0] = backgroundColor.r * 255;
      data[1] = backgroundColor.g * 255;
      data[2] = backgroundColor.b * 255;
      texture = new THREE.DataTexture(data, 1, 1, THREE.RGBFormat);
    } else {
      texture = new THREE.Texture();
    }

    return texture;
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Converter/convertToTile.js":
/*!************************************************************!*\
  !*** ./node_modules/itowns/lib/Converter/convertToTile.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _TileMesh = _interopRequireDefault(__webpack_require__(/*! ../Core/TileMesh */ "./node_modules/itowns/lib/Core/TileMesh.js"));

var _LayeredMaterial = _interopRequireDefault(__webpack_require__(/*! ../Renderer/LayeredMaterial */ "./node_modules/itowns/lib/Renderer/LayeredMaterial.js"));

var _TileBuilder = _interopRequireDefault(__webpack_require__(/*! ../Core/Prefab/TileBuilder */ "./node_modules/itowns/lib/Core/Prefab/TileBuilder.js"));

var _ReferencingLayerProperties = _interopRequireDefault(__webpack_require__(/*! ../Layer/ReferencingLayerProperties */ "./node_modules/itowns/lib/Layer/ReferencingLayerProperties.js"));

var _GeoidLayer = __webpack_require__(/*! ../Layer/GeoidLayer */ "./node_modules/itowns/lib/Layer/GeoidLayer.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
var dimensions = new THREE.Vector2();

function setTileFromTiledLayer(tile, tileLayer) {
  if (tileLayer.diffuse) {
    tile.material.diffuse = tileLayer.diffuse;
  }

  if (tileLayer.isGlobeLayer) {
    // Computes a point used for horizon culling.
    // If the point is below the horizon,
    // the tile is guaranteed to be below the horizon as well.
    tile.horizonCullingPoint = tile.extent.center().as('EPSG:4978').toVector3();
    tile.extent.planarDimensions(dimensions).multiplyScalar(THREE.MathUtils.DEG2RAD); // alpha is maximum angle between two points of tile

    var alpha = dimensions.length();
    var h = Math.abs(1.0 / Math.cos(alpha * 0.5));
    tile.horizonCullingPoint.setLength(h * tile.horizonCullingPoint.length());
    tile.horizonCullingPointElevationScaled = tile.horizonCullingPoint.clone();
  }
}

var _default = {
  convert: function convert(requester, extent, layer) {
    var builder = layer.builder;
    var parent = requester;
    var level = parent !== undefined ? parent.level + 1 : 0;
    var paramsGeometry = {
      extent: extent,
      level: level,
      segment: layer.segments || 16,
      disableSkirt: layer.disableSkirt
    };
    return (0, _TileBuilder["default"])(builder, paramsGeometry).then(function (result) {
      // build tile mesh
      result.geometry._count++;
      var crsCount = layer.tileMatrixSets.length;
      var material = new _LayeredMaterial["default"](layer.materialOptions, crsCount);
      (0, _ReferencingLayerProperties["default"])(material, layer);
      var tile = new _TileMesh["default"](result.geometry, material, layer, extent, level); // Commented because layer.threejsLayer is undefined;
      // Fix me: conflict with object3d added in view.scene;
      // tile.layers.set(layer.threejsLayer);

      if (parent && parent.isTileMesh) {
        // get parent extent transformation
        var pTrans = builder.computeSharableExtent(parent.extent); // place relative to his parent

        result.position.sub(pTrans.position).applyQuaternion(pTrans.quaternion.invert());
        result.quaternion.premultiply(pTrans.quaternion);
      }

      tile.position.copy(result.position);
      tile.quaternion.copy(result.quaternion);
      tile.visible = false;
      tile.updateMatrix();
      tile.add(tile.obb);
      setTileFromTiledLayer(tile, layer);

      if (parent) {
        tile.geoidHeight = parent.geoidHeight;
        var geoidHeight = (0, _GeoidLayer.geoidLayerIsVisible)(layer) ? tile.geoidHeight : 0;
        tile.setBBoxZ({
          min: parent.obb.z.min,
          max: parent.obb.z.max,
          geoidHeight: geoidHeight
        });
        tile.material.geoidHeight = geoidHeight;
      }

      return tile;
    });
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Converter/textureConverter.js":
/*!***************************************************************!*\
  !*** ./node_modules/itowns/lib/Converter/textureConverter.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Feature2Texture = _interopRequireDefault(__webpack_require__(/*! ./Feature2Texture */ "./node_modules/itowns/lib/Converter/Feature2Texture.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var extentTexture = new _Extent["default"]('EPSG:4326', [0, 0, 0, 0]);

var textureLayer = function (texture, layer) {
  texture.generateMipmaps = false;
  texture.magFilter = layer.magFilter || THREE.LinearFilter;
  texture.minFilter = layer.minFilter || THREE.LinearFilter;
  return texture;
};

function textureColorLayer(texture, layer) {
  texture.anisotropy = 16;
  texture.premultiplyAlpha = layer.transparent;
  return textureLayer(texture, layer);
}

var _default = {
  convert: function convert(data, extentDestination, layer) {
    var texture;

    if (data.isFeatureCollection) {
      var backgroundLayer = layer.source.backgroundLayer;
      var backgroundColor = backgroundLayer && backgroundLayer.paint ? new THREE.Color(backgroundLayer.paint['background-color']) : undefined;
      extentDestination.as(_Crs["default"].formatToEPSG(layer.crs), extentTexture);
      texture = _Feature2Texture["default"].createTextureFromFeature(data, extentTexture, 256, layer.style, backgroundColor);
      texture.features = data;
      texture.extent = extentDestination;
    } else if (data.isTexture) {
      texture = data;
    } else {
      throw new Error('Data type is not supported to convert into texture');
    }

    if (layer.isColorLayer) {
      return textureColorLayer(texture, layer);
    } else if (layer.isElevationLayer) {
      if (texture.flipY) {
        // DataTexture default to false, so make sure other Texture types
        // do the same (eg image texture)
        // See UV construction for more details
        texture.flipY = false;
      }

      return textureLayer(texture, layer);
    }
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/3DTiles/C3DTBatchTable.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/3DTiles/C3DTBatchTable.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _Utf8Decoder = _interopRequireDefault(__webpack_require__(/*! ../../Utils/Utf8Decoder */ "./node_modules/itowns/lib/Utils/Utf8Decoder.js"));

var _C3DTilesTypes = _interopRequireDefault(__webpack_require__(/*! ./C3DTilesTypes */ "./node_modules/itowns/lib/Core/3DTiles/C3DTilesTypes.js"));

/** @classdesc
 * A 3D Tiles
 * [batch
 * table](https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/specification/TileFormats/BatchTable).
 * @property {C3DTilesTypes} type - Used by 3D Tiles extensions
 * (e.g. {@link C3DTBatchTableHierarchyExtension}) to know in which context
 * (i.e. for which 3D Tiles class) the parsing of the extension should be done.
 * @property {number} batchLength - the length of the batch.
 * @property {object} content - the content of the batch table in the form:
 * {property1: values[], property2: values[], ...}.
 * @property {object} extensions - 3D Tiles extensions of the batch table
 * stored in the following format:
 * {extensioName1: extensionObject1, extensioName2: extensionObject2, ...}
 */
var C3DTBatchTable = /*#__PURE__*/function () {
  /**
   * @param {ArrayBuffer} buffer - batch table buffer to parse.
   * @param {ArrayBuffer} binaryLength - the length of the binary part of
   * the batch table (not supported yet)
   * @param {number} batchLength - the length of the batch.
   * @param {Object} registeredExtensions - extensions registered to the layer
   */
  function C3DTBatchTable(buffer, binaryLength, batchLength, registeredExtensions) {
    (0, _classCallCheck2["default"])(this, C3DTBatchTable);
    this.type = _C3DTilesTypes["default"].batchtable;
    this.batchLength = batchLength; // Parse Batch table content

    var jsonBuffer = buffer; // Batch table has a json part and can have a binary part (not supported yet)

    if (binaryLength > 0) {
      console.warn('Binary batch table content not supported yet.');
      jsonBuffer = buffer.slice(0, buffer.byteLength - binaryLength);
    } // Parse JSON content


    var content = _Utf8Decoder["default"].decode(new Uint8Array(jsonBuffer));

    var json = JSON.parse(content); // Separate the content and the possible extensions
    // When an extension is found, we call its parser and append the
    // returned object to batchTable.extensions
    // Extensions must be registered in the layer (see an example of this in
    // 3dtiles_hierarchy.html)

    if (json.extensions) {
      this.extensions = registeredExtensions.parseExtensions(json.extensions, this.type);
      delete json.extensions;
    } // Store batch table json content


    this.content = json;
  }
  /**
   * Creates and returns a javascript object holding the displayable
   * information from the batch table and from extensions of the batch table,
   * for a given feature (identified with its batchID).
   * @param {integer} batchID - id of the feature
   * @returns {Object} - displayable information relative to the batch
   * table and its extensions. Object is formatted as follow:
   * {batchTable:
   *      {property1: value1
   *       property2: value2
   *       ...}
   *  extensions:
   *      {extension1:
   *          {property1: value1
   *           ...}
   *        extension2: {...}
   *        ...}
   * }
   */


  (0, _createClass2["default"])(C3DTBatchTable, [{
    key: "getInfoById",
    value: function getInfoById(batchID) {
      // Verify that the batch ID is valid
      if (batchID < 0 && batchID < this.batchLength) {
        throw new Error("Batch Id (".concat(batchID, ") must be between 0 and\n            ").concat(this.batchLength, " to access feature properties from the batch\n            table."));
      }

      var featureDisplayableInfo = {};
      featureDisplayableInfo.batchTable = {}; // Get properties from batch table content

      for (var property in this.content) {
        // check that the property is not inherited from prototype chain
        if (Object.prototype.hasOwnProperty.call(this.content, property)) {
          featureDisplayableInfo.batchTable[property] = this.content[property][batchID];
        }
      } // Extensions


      if (this.extensions) {
        featureDisplayableInfo.extensions = {};

        for (var extName in this.extensions) {
          if (Object.prototype.hasOwnProperty.call(this.extensions, extName)) {
            featureDisplayableInfo.extensions[extName] = this.extensions[extName].getInfoById(batchID);
          }
        }
      }

      return featureDisplayableInfo;
    }
  }]);
  return C3DTBatchTable;
}();

var _default = C3DTBatchTable;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/3DTiles/C3DTBatchTableHierarchyExtension.js":
/*!**********************************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/3DTiles/C3DTBatchTableHierarchyExtension.js ***!
  \**********************************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

/**
 * @classdesc
 * Batch Table part of the 3D Tiles
 * [Batch Table Hierarchy Extension](https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/extensions/3DTILES_batch_table_hierarchy)
 * @property {object} classes - The classes as defined in the specification.
 * @property {object} inverseHierarchy - InverseHierarchy contains for each
 * instance (i.e. georgraphic feature e.g. building, roof, etc.) an array of the
 * indexes of its parents. For example, the parents of the instance 0 can be
 * found using inverseHierarchy[0].
 * @property {number[]} instancesIdxs - For each instance of the extension,
 * contains a javascript object with classId and instanceIdx. classId is the id
 * of the class (from this.classes) of the instance. instanceIdx is the index of
 * the instance in this class. Goal: Ease the retrieval of the properties of an
 * instance.
 */
var C3DTBatchTableHierarchyExtension = /*#__PURE__*/function () {
  /**
   * Constructor of the C3DTBatchTableHierarchyExtension class.
   * @param {Object} json - The parsed json of the batch table part of the 3D
   * Tiles [Batch Table Hierarchy Extension](https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/extensions/3DTILES_batch_table_hierarchy)
   */
  function C3DTBatchTableHierarchyExtension(json) {
    (0, _classCallCheck2["default"])(this, C3DTBatchTableHierarchyExtension);
    this.classes = json.classes;
    this.inverseHierarchy = {};
    this.instancesIdxs = []; // Counts the number of instances of a class

    var classCounter = {};
    var parentIdsCounter = 0; // if omitted, parentCounts is an array of length instancesLength,
    // where all values are 1 (cf. spec)

    var parentCounts = json.parentCounts;

    if (parentCounts === undefined) {
      parentCounts = new Array(json.instancesLength);
      parentCounts.fill(1);
    } // for each instance


    for (var i = 0; i < json.instancesLength; i++) {
      // for each parent of the current instance
      for (var j = 0; j < parentCounts[i]; j++) {
        // When an instance's parentId points to itself, then it has no
        // parent" (cf. spec)
        if (i !== json.parentIds[parentIdsCounter]) {
          if (this.inverseHierarchy[i] === undefined) {
            this.inverseHierarchy[i] = [];
          }

          this.inverseHierarchy[i].push(json.parentIds[parentIdsCounter]);
          parentIdsCounter++;
        }
      }

      var classId = json.classIds[i];

      if (classCounter[classId] === undefined) {
        classCounter[classId] = 0;
      }

      this.instancesIdxs[i] = {
        classId: classId,
        instanceIdx: classCounter[classId]
      };
      classCounter[classId]++;
    }
  }
  /**
   * Creates and returns a javascript object holding the displayable
   * information relative to this extension for a given feature.
   * @param {integer} featureId - id of the feature
   * @returns {Object} - displayable information relative to this
   * extension, for the feature with id=featureId and for its parents
   */


  (0, _createClass2["default"])(C3DTBatchTableHierarchyExtension, [{
    key: "getInfoById",
    value: function getInfoById(featureId) {
      var instanceProperties = {}; // get feature class name

      var instanceClassId = this.instancesIdxs[featureId].classId;
      var featureClass = this.classes[instanceClassId].name; // get feature properties and values

      var instanceIdx = this.instancesIdxs[featureId].instanceIdx;
      var instances = this.classes[instanceClassId].instances;

      for (var key in instances) {
        if (Object.prototype.hasOwnProperty.call(instances, key)) {
          instanceProperties[key] = instances[key][instanceIdx];
        }
      } // create return object: className: {featureProperties and values}


      var pickingInfo = {};
      pickingInfo[featureClass] = instanceProperties; // If this feature has parent(s), recurse on them

      if (this.inverseHierarchy && this.inverseHierarchy[featureId]) {
        var _iterator = _createForOfIteratorHelper(this.inverseHierarchy[featureId]),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var parentID = _step.value;
            Object.assign(pickingInfo, this.getInfoById(parentID));
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      }

      return pickingInfo;
    }
  }]);
  return C3DTBatchTableHierarchyExtension;
}();

var _default = C3DTBatchTableHierarchyExtension;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/3DTiles/C3DTBoundingVolume.js":
/*!********************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/3DTiles/C3DTBoundingVolume.js ***!
  \********************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _OBB = _interopRequireDefault(__webpack_require__(/*! ../../Renderer/OBB */ "./node_modules/itowns/lib/Renderer/OBB.js"));

var _C3DTilesTypes = _interopRequireDefault(__webpack_require__(/*! ./C3DTilesTypes */ "./node_modules/itowns/lib/Core/3DTiles/C3DTilesTypes.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var matrix = new THREE.Matrix4();
var center = new THREE.Vector3();
var size = new THREE.Vector3();
var extent = new _Extent["default"]('EPSG:4326', 0, 0, 0, 0);
var sphereCenter = new THREE.Vector3();
var worldCoordinateCenter = new THREE.Vector3();
/**
 * @classdesc 3D Tiles
 * [bounding volume](https://github.com/AnalyticalGraphicsInc/3d-tiles/blob/master/specification/schema/boundingVolume.schema.json)
 * @property {C3DTilesTypes} type - Used by 3D Tiles extensions
 * (e.g. {@link C3DTBatchTableHierarchyExtension}) to know in which context
 * (i.e. for which 3D Tiles class) the parsing of the extension should be done.
 * @property {THREE.Box3} box - Bounding box, defined only if the Bounding Volume
 * is a box.
 * @property {OBB} region - Bounding region, defined only if the Bounding
 * Volume is a region.
 * @property {THREE.Sphere} sphere - Bounding sphere, defined only if the
 * Bounding Volume is a sphere.
 * @property {object} extensions - 3D Tiles extensions of the bounding volume
 * stored in the following format:
 * {extensioName1: extensionObject1, extensioName2: extensionObject2, ...}
 */

var C3DTBoundingVolume = /*#__PURE__*/function () {
  function C3DTBoundingVolume(json, inverseTileTransform, registeredExtensions) {
    (0, _classCallCheck2["default"])(this, C3DTBoundingVolume);
    this.type = _C3DTilesTypes["default"].boundingVolume; // Init bounding volume

    if (json.region) {
      this.initBoundingRegion(json.region, inverseTileTransform);
    } else if (json.box) {
      this.initBoundingBox(json.box);
    } else if (json.sphere) {
      this.initBoundingSphere(json.sphere);
    } else {
      throw new Error('3D Tiles nodes must have a bounding volume');
    }

    if (json.extensions) {
      this.extensions = registeredExtensions.parseExtensions(json.extensions, this.type);
    }
  }

  (0, _createClass2["default"])(C3DTBoundingVolume, [{
    key: "initBoundingRegion",
    value: function initBoundingRegion(region, inverseTileTransform) {
      extent.set(THREE.MathUtils.radToDeg(region[0]), THREE.MathUtils.radToDeg(region[2]), THREE.MathUtils.radToDeg(region[1]), THREE.MathUtils.radToDeg(region[3]));
      var regionBox = new _OBB["default"]();
      regionBox.setFromExtent(extent);
      regionBox.updateZ({
        min: region[4],
        max: region[5]
      }); // at this point box.matrix = box.epsg4978_from_local, so
      // we transform it in parent_from_local by using parent's
      // epsg4978_from_local which from our point of view is
      // epsg4978_from_parent. box.matrix = (epsg4978_from_parent ^ -1) *
      // epsg4978_from_local =  parent_from_epsg4978 * epsg4978_from_local =
      // parent_from_local

      regionBox.matrix.premultiply(inverseTileTransform); // update position, rotation and scale

      regionBox.matrix.decompose(regionBox.position, regionBox.quaternion, regionBox.scale);
      this.region = regionBox;
    }
  }, {
    key: "initBoundingBox",
    value: function initBoundingBox(box) {
      // box[0], box[1], box[2] = center of the box
      // box[3], box[4], box[5] = x axis direction and half-length
      // box[6], box[7], box[8] = y axis direction and half-length
      // box[9], box[10], box[11] = z axis direction and half-length
      center.set(box[0], box[1], box[2]);
      size.set(box[3], box[7], box[11]).multiplyScalar(2);
      this.box = new THREE.Box3();
      this.box.setFromCenterAndSize(center, size);
    }
  }, {
    key: "initBoundingSphere",
    value: function initBoundingSphere(sphere) {
      sphereCenter.set(sphere[0], sphere[1], sphere[2]);
      this.sphere = new THREE.Sphere(sphereCenter, sphere[3]);
    }
  }, {
    key: "boundingVolumeCulling",
    value: function boundingVolumeCulling(camera, tileMatrixWorld) {
      if (this.region && !camera.isBox3Visible(this.region.box3D, matrix.multiplyMatrices(tileMatrixWorld, this.region.matrix))) {
        return true;
      }

      if (this.box && !camera.isBox3Visible(this.box, tileMatrixWorld)) {
        return true;
      }

      return this.sphere && !camera.isSphereVisible(this.sphere, tileMatrixWorld);
    }
  }, {
    key: "viewerRequestVolumeCulling",
    value: function viewerRequestVolumeCulling(camera, tileMatrixWorld) {
      if (this.region) {
        console.warn('Region viewerRequestVolume not yet supported');
        return true;
      }

      if (this.box) {
        console.warn('Bounding box viewerRequestVolume not yet supported');
        return true;
      }

      if (this.sphere) {
        worldCoordinateCenter.copy(this.sphere.center);
        worldCoordinateCenter.applyMatrix4(tileMatrixWorld); // To check the distance between the center sphere and the camera

        if (!(camera.camera3D.position.distanceTo(worldCoordinateCenter) <= this.sphere.radius)) {
          return true;
        }
      }

      return false;
    }
  }]);
  return C3DTBoundingVolume;
}();

var _default = C3DTBoundingVolume;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/3DTiles/C3DTExtensions.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/3DTiles/C3DTExtensions.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

/** @classdesc
 * Class for managing
 * [3D Tiles extensions](https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/extensions).
 * Extensions used in a 3D Tiles tileset must be registered in the iTowns' layer
 * holding the tileset by the user with the {@link registerExtension}
 * method. The extension must be registered together with a class holding the
 * code to interpret the extension.
 * An example of extension class is {@link $3DTBatchTableHierarchyExtension}.
 * This extension has only one part situated in the batch table (but other
 * extensions can have multiple parts, stored in different 3D Tiles classes
 * such as tileset or bounding volume).
 * @example
 * // Create a C3DTExtensions object
 * const extensions = new itowns.C3DTExtensions();
 * // Register an extension to it named "3DTILES_batch_table_hierarchy" and
 * // a class itowns.C3DTBatchTableHierarchyExtension to the batch table part
 * // (with [itowns.C3DTilesTypes.batchtable]). see {@link C3DTilesTypes}
 * extensions.registerExtension("3DTILES_batch_table_hierarchy",
 * { [itowns.C3DTilesTypes.batchtable]: itowns.C3DTBatchTableHierarchyExtension });
 *
 * // Create a 3D Tiles layer with registered extensions
 * var $3dTilesLayerBTHierarchy = new itowns.C3DTilesLayer('3d-tiles-bt-hierarchy', {
 *      name: 'BTHierarchy',
 *      source: new itowns.C3DTilesSource({
 *          url: 'https://raw.githubusercontent.com/AnalyticalGraphicsInc/cesium/master/Apps/SampleData/Cesium3DTiles/Hierarchy/BatchTableHierarchy/tileset.json',
 *          }),
 *          registeredExtensions: extensions,
 *      },
 * view);
 */
var C3DTExtensions = /*#__PURE__*/function () {
  function C3DTExtensions() {
    (0, _classCallCheck2["default"])(this, C3DTExtensions);
  }

  (0, _createClass2["default"])(C3DTExtensions, [{
    key: "registerExtension",
    value:
    /**
     * Register a 3D Tiles extension: Maps an extension name to the
     * extensionsManagers (i.e. one class per 3D Tiles class (e.g.
     * batch table or bounding volume).
     * @param {string} extensionName - Name of the extension
     * @param {object} extensionManagers - An object mapping 3D Tiles
     * classes names (see @link{C3DTilesTypes} to the extension managers
     * corresponding to this class. These extension managers should be able
     * to parse the extension fragment (done in the constructor) and should
     * have a getInfoById method if they are related to the batch table class.
     * See {@link $3DTBatchTableHierarchyExtension} for an example of
     * extension class.
     */
    function registerExtension(extensionName, extensionManagers) {
      this[extensionName] = extensionManagers;
    }
    /**
     * Get an extension manager from its name and C3DTilesType
     * @param {string} extensionName - name of the extension.
     * @param {C3DTilesTypes} type - type of 3DTiles class (e.g. batch
     * table, bounding volume, tileset, etc.)
     * @returns {object} - the extension manager corresponding to the
     * extensioNname and type.
     */

  }, {
    key: "getExtension",
    value: function getExtension(extensionName, type) {
      if (this[extensionName] && this[extensionName][type]) {
        return this[extensionName][type];
      } else {
        console.error("".concat('No extension manager registered for' + ' extension ', " ").concat(extensionName, " and for class ").concat(type));
      }
    }
    /**
     * Test if an extension is registered
     * @param {string} extensionName - Name of the extension
     * @returns {boolean} - true if the extension is registered and false
     * otherwise.
     */

  }, {
    key: "isExtensionRegistered",
    value: function isExtensionRegistered(extensionName) {
      return this[extensionName];
    }
    /**
     * Parses the extensions from a given JSON (extensionsJSON) by
     * instanciating the right class from the registered extensions.
     * @param {object} extensionsJSON - the JSON to parse extensions from.
     * @param {C3DTilesTypes} type - type of class asking for extensions parsing
     * has been called. For instance, if {@link C3DTBatchTable} needs to
     * parse its extensions, it will call parseExtension with the JSON to
     * parse and C3DTilesTypes.batchtable as type.
     * @returns {object} - An object with keys being the names of the
     * extensions and values the instances of the extensions managers.
     */

  }, {
    key: "parseExtensions",
    value: function parseExtensions(extensionsJSON, type) {
      var parsedExtensions = {};

      for (var extName in extensionsJSON) {
        if (Object.prototype.hasOwnProperty.call(extensionsJSON, extName)) {
          parsedExtensions[extName] = new (this.getExtension(extName, type))(extensionsJSON[extName]);
        }
      }

      return parsedExtensions;
    }
  }]);
  return C3DTExtensions;
}();

var _default = C3DTExtensions;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/3DTiles/C3DTilesTypes.js":
/*!***************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/3DTiles/C3DTilesTypes.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

/**
 * Enumeration of implemented 3D Tiles classes. Used in C3DTExtensions to
 * now which classes ask for extension parsing.
 *
 * @enum {Object} C3DTilesTypes
 *
 * @property {String} tileset - value: 'tileset'
 * @property {String} batchtable - value: 'batchtable'
 * @property {String} boundingVolume - value: 'bounding volume'
 */
var C3DTilesTypes = {
  tileset: 'tileset',
  batchtable: 'batchtable',
  boundingVolume: 'boundingVolume'
};
var _default = C3DTilesTypes;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/3DTiles/C3DTileset.js":
/*!************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/3DTiles/C3DTileset.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _C3DTBoundingVolume = _interopRequireDefault(__webpack_require__(/*! ./C3DTBoundingVolume */ "./node_modules/itowns/lib/Core/3DTiles/C3DTBoundingVolume.js"));

var _C3DTilesTypes = _interopRequireDefault(__webpack_require__(/*! ./C3DTilesTypes */ "./node_modules/itowns/lib/Core/3DTiles/C3DTilesTypes.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

var inverseTileTransform = new THREE.Matrix4();
/** @classdesc
 * A 3D Tiles
 *  [Tileset](https://github.com/AnalyticalGraphicsInc/3d-tiles/blob/master/specification/schema/tileset.schema.json).
 * @property {C3DTilesTypes} type - Used by 3D Tiles extensions
 * (e.g. {@link C3DTBatchTableHierarchyExtension}) to know in which context
 * (i.e. for which 3D Tiles class) the parsing of the extension should be done.
 *  @property {object} asset - Generic information about the tileset, see
 *  [asset specification]https://github.com/CesiumGS/3d-tiles/blob/master/specification/schema/asset.schema.json
 *  @property {object} properties - Properties associated with the tileset, see
 *  [tileset specification](https://github.com/CesiumGS/3d-tiles/blob/master/specification/schema/tileset.schema.json#L11)
 *  @property {number} geometricError - see [tileset
 *  specification](https://github.com/CesiumGS/3d-tiles/blob/master/specification/schema/tileset.schema.json#L18)
 *  @property {string[]} extensionsUsed - see [tileset
 *  specification](https://github.com/CesiumGS/3d-tiles/blob/master/specification/schema/tileset.schema.json#L27)
 *  @property {array} extensionsRequired - see [tileset specification](https://github.com/CesiumGS/3d-tiles/blob/master/specification/schema/tileset.schema.json#L36)
 *  @property {object[]} tiles - an array holding all the
 *  [tiles](https://github.com/AnalyticalGraphicsInc/3d-tiles/blob/master/specification/schema/tile.schema.json)
 *  (not their content which is stored in the attribute object3d of the
 *  layer). This list represents a flattened tileset.
 *  @property {object} extensions - Extensions of the tileset in the form:
 * {extensioName1: extensionObject1, extensioName2: extensionObject2, ...}
 */

var C3DTileset = /*#__PURE__*/function () {
  function C3DTileset(json, baseURL, registeredExtensions) {
    (0, _classCallCheck2["default"])(this, C3DTileset);
    this.type = _C3DTilesTypes["default"].tileset;
    this.asset = json.asset;
    this.properties = json.properties;
    this.geometricError = json.geometricError;
    this.extensionsUsed = json.extensionsUsed;
    this.extensionsRequired = json.extensionsRequired;
    this.tiles = [];
    this.parseTiles(json.root, baseURL, undefined, registeredExtensions);

    if (json.extensions) {
      this.extensions = registeredExtensions.parseExtensions(json.extensions, this.type);
    }
  }
  /**
   * Recursion on the 3DTiles tileset (which is a tree) to parse the tiles
   * (nodes of the tree).
   * @param {object} tile - current tile
   * @param {string} baseURL - url of the source tileset and tiles
   * @param {object} parent - parent tile (used for computing the transform
   * matrix from local to global coordinates)
   * @param {object} registeredExtensions - 3D Tiles extensions registered
   * in the C3DTilesLayer (see {@link C3DTExtensions}
   */


  (0, _createClass2["default"])(C3DTileset, [{
    key: "parseTiles",
    value: function parseTiles(tile, baseURL, parent, registeredExtensions) {
      // compute transform (will become Object3D.matrix when the object is
      // downloaded)
      tile.transform = tile.transform ? new THREE.Matrix4().fromArray(tile.transform) : undefined; // The only reason to store _worldFromLocalTransform is because of
      // extendTileset where we need the transform chain for one tile.

      tile._worldFromLocalTransform = tile.transform;

      if (parent && parent._worldFromLocalTransform) {
        if (tile.transform) {
          tile._worldFromLocalTransform = new THREE.Matrix4().multiplyMatrices(parent._worldFromLocalTransform, tile.transform);
        } else {
          tile._worldFromLocalTransform = parent._worldFromLocalTransform;
        }
      } // inverseTileTransform is only used for volume.region


      if (tile.viewerRequestVolume && tile.viewerRequestVolume.region || tile.boundingVolume && tile.boundingVolume.region) {
        if (tile._worldFromLocalTransform) {
          inverseTileTransform.copy(tile._worldFromLocalTransform).invert();
        } else {
          inverseTileTransform.identity();
        }
      }

      tile.viewerRequestVolume = tile.viewerRequestVolume ? new _C3DTBoundingVolume["default"](tile.viewerRequestVolume, inverseTileTransform, registeredExtensions) : undefined;
      tile.boundingVolume = tile.boundingVolume ? new _C3DTBoundingVolume["default"](tile.boundingVolume, inverseTileTransform, registeredExtensions) : undefined;
      this.tiles.push(tile);
      tile.tileId = this.tiles.length - 1;
      tile.baseURL = baseURL;

      if (tile.children) {
        var _iterator = _createForOfIteratorHelper(tile.children),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var child = _step.value;
            this.parseTiles(child, baseURL, tile, registeredExtensions);
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      }
    }
  }, {
    key: "extendTileset",
    value: function extendTileset(tileset, nodeId, baseURL, registeredExtensions) {
      this.parseTiles(tileset.root, baseURL, this.tiles[nodeId], registeredExtensions);
      this.tiles[nodeId].children = [tileset.root];
      this.tiles[nodeId].isTileset = true;
    }
  }]);
  return C3DTileset;
}();

var _default = C3DTileset;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/AnimationPlayer.js":
/*!*********************************************************!*\
  !*** ./node_modules/itowns/lib/Core/AnimationPlayer.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var FRAMERATE = 60;
var FRAME_DURATION = 1000 / FRAMERATE; // player statut

var PLAYER_STATE = {
  // player is stopped
  STOP: 0,
  // player plays animation
  PLAY: 1,
  // player is at the end of an animation
  END: 2,
  // player is paused
  PAUSE: 3
}; // Private functions
// stop timer and re-init parameter

var resetTimer = function (player) {
  if (player.id) {
    clearInterval(player.id);
    player.id = undefined;
  }

  if (player.waitTimer) {
    clearInterval(player.waitTimer);
    player.waitTimer = undefined;
  }

  player.keyframe = 0;
}; // finish animation and re-init parameter


var finishAnimation = function (player) {
  resetTimer(player);

  if (player.isEnded()) {
    player.dispatchEvent({
      type: 'animation-ended'
    });
  }

  player.dispatchEvent({
    type: 'animation-stopped'
  });
  player.duration = 0;
};
/**
 * It can play, pause or stop Animation or AnimationExpression (See below).
 * AnimationPlayer is needed to use Animation or AnimationExpression
 * AnimationPlayer emits events :
 *       - for each animation's frame;
 *       - when Animation is stopped
 *       - when Animation is ending
 */


var AnimationPlayer = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(AnimationPlayer, _THREE$EventDispatche);

  var _super = _createSuper(AnimationPlayer);

  function AnimationPlayer() {
    var _this;

    (0, _classCallCheck2["default"])(this, AnimationPlayer);
    _this = _super.call(this);
    _this.id = null;
    _this.keyframe = 0;
    _this.duration = 0;
    _this.state = PLAYER_STATE.STOP;
    _this.waitTimer = null;

    _this.callback = function () {};

    return _this;
  }

  (0, _createClass2["default"])(AnimationPlayer, [{
    key: "isPlaying",
    value: function isPlaying() {
      return this.state === PLAYER_STATE.PLAY;
    }
  }, {
    key: "isStopped",
    value: function isStopped() {
      return this.state === PLAYER_STATE.STOP;
    }
  }, {
    key: "isEnded",
    value: function isEnded() {
      return this.state === PLAYER_STATE.END;
    } // Public functions

    /**
     * Set the Player `callback` property. This callback is executed at each animation frame.
     *
     * @param {function} callback - The callback to execute at each animation frame.
     */

  }, {
    key: "setCallback",
    value: function setCallback(callback) {
      this.callback = callback;
    }
    /**
     * Play one animation.
     * If another animation is playing, it's stopped and the new animation is played.
     *
     * @param {number} duration - The duration to play
     */

  }, {
    key: "play",
    value: function play(duration) {
      this.duration = duration;
      this.dispatchEvent({
        type: 'animation-started'
      });
      this.state = PLAYER_STATE.PLAY;
      resetTimer(this);
      this.id = setInterval(this.frame.bind(this), FRAME_DURATION);
    }
    /**
     * Play an animation after a number of frames.
     *
     * @param      {number}  duration    The duration to play
     * @param      {number}  waitingFrame    The waiting time before start animation (time in frame)
     */

  }, {
    key: "playLater",
    value: function playLater(duration, waitingFrame) {
      var timew = Math.floor(FRAME_DURATION * waitingFrame);
      window.clearInterval(this.waitTimer);
      var self = this;
      this.waitTimer = window.setTimeout(function () {
        self.play(duration);
      }, timew);
    }
    /**
     * Stop the current animation.
     *
     */

  }, {
    key: "stop",
    value: function stop() {
      this.state = PLAYER_STATE.STOP;
      finishAnimation(this);
    }
    /**
     * Executed for each frame.
     *
     * @private
     */

  }, {
    key: "frame",
    value: function frame() {
      if (this.keyframe < this.duration) {
        this.keyframe++;
        this.dispatchEvent({
          type: 'animation-frame'
        });
        this.callback();
      } else {
        this.state = PLAYER_STATE.END;
        finishAnimation(this);
      }
    }
  }]);
  return AnimationPlayer;
}(THREE.EventDispatcher);

var _default = AnimationPlayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Deprecated/Undeprecator.js":
/*!*****************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Deprecated/Undeprecator.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.deprecatedParsingOptionsToNewOne = exports.deprecatedFeature2MeshOptions = exports.deprecatedColorLayerOptions = exports["default"] = void 0;

var _LayeredMaterial = __webpack_require__(/*! ../../Renderer/LayeredMaterial */ "./node_modules/itowns/lib/Renderer/LayeredMaterial.js");

var deprecatedColorLayerOptions = function (options) {
  if (options.fx) {
    console.warn('ColorLayer fx is deprecated, use ColorLayer.effect_type and ColorLayer.effect_parameter instead.');

    if (options.fx > 2.0) {
      options.effect_parameter = options.fx;
      options.effect_type = _LayeredMaterial.colorLayerEffects.removeLightColor;
    } else if (options.fx > 0.0) {
      options.effect_parameter = options.fx;
      options.effect_type = _LayeredMaterial.colorLayerEffects.removeWhiteColor;
    }
  }

  return options;
};

exports.deprecatedColorLayerOptions = deprecatedColorLayerOptions;

var deprecatedParsingOptionsToNewOne = function (options) {
  /* istanbul ignore next */
  if (options.crsOut || options.crsIn) {
    console.warn('Parsing options with crsIn and crsOut are deprecated, use { in, out } structure.');
    var newOptions = {
      "in": {},
      out: {}
    };
    newOptions["in"].crs = options.crsIn;
    newOptions["in"].isInverted = options.isInverted;
    newOptions["in"].styles = options.styles;
    newOptions["in"].layers = options.layers;
    newOptions["in"].filter = options.filter;
    newOptions.out.crs = options.crsOut;
    newOptions.out.mergeFeatures = options.mergeFeatures;

    if (options.withAltitude && options.withNormal) {
      console.warn('Parsing options withAltitude and withNormal is deprecated, use out.structure: 2d or 3d.');
      newOptions.out.structure = '3d';
    } else {
      newOptions.out.structure = '2d';
    }

    newOptions.out.filteringExtent = options.filteringExtent;
    newOptions.out.style = options.style;

    if (options.crsOut.overrideAltitudeInToZero !== undefined) {
      console.error('Parsing options out.overrideAltitudeInToZero is removed, use Style.xxx.base_altitude instead');
    }

    newOptions.out.filter = options.filter;
    return newOptions;
  }

  if (options.out) {
    if (options.out.withAltitude !== undefined || options.out.withNormal !== undefined) {
      console.warn('Parsing options out.withAltitude and out.withNormal is deprecated, use out.structure: 2d or 3d.');

      if (options.out.withAltitude && options.out.withNormal) {
        options.out.structure = '3d';
      } else {
        options.out.structure = '2d';
      }
    }

    if (options.out.overrideAltitudeInToZero !== undefined) {
      console.error('Parsing options out.overrideAltitudeInToZero is removed, use Style.xxx.base_altitude instead');
    }
  }

  return options;
};

exports.deprecatedParsingOptionsToNewOne = deprecatedParsingOptionsToNewOne;

var deprecatedFeature2MeshOptions = function (options) {
  if (options.color) {
    console.error('Color convert option is removed, use Style.xxx.color');
  }

  if (options.extrude) {
    console.error('extrude convert option is removed, use Style.fill.extrusion_height instead');
  }

  if (options.altitude) {
    console.error('altitude convert option is removed, use Style.xxx.base_altitude instead');
  }
};

exports.deprecatedFeature2MeshOptions = deprecatedFeature2MeshOptions;
var _default = {};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/EntwinePointTileNode.js":
/*!**************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/EntwinePointTileNode.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ../Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

var _PointCloudNode2 = _interopRequireDefault(__webpack_require__(/*! ./PointCloudNode */ "./node_modules/itowns/lib/Core/PointCloudNode.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var size = new THREE.Vector3();
var position = new THREE.Vector3();
var translation = new THREE.Vector3();

function buildId(depth, x, y, z) {
  return "".concat(depth, "-").concat(x, "-").concat(y, "-").concat(z);
}
/**
 * @extends PointCloudNode
 *
 * @property {boolean} isEntwinePointTileNode - Used to checkout whether this
 * node is a EntwinePointTileNode. Default is `true`. You should not change
 * this, as it is used internally for optimisation.
 * @property {number} depth - The depth of the node in the tree - see the
 * [Entwine
 * documentation](https://entwine.io/entwine-point-tile.html#ept-data)
 * @property {number} x - The x coordinate of the node in the tree - see the
 * [Entwine
 * documentation](https://entwine.io/entwine-point-tile.html#ept-data)
 * @property {number} y - The x coordinate of the node in the tree - see the
 * [Entwine
 * documentation](https://entwine.io/entwine-point-tile.html#ept-data)
 * @property {number} z - The x coordinate of the node in the tree - see the
 * [Entwine
 * documentation](https://entwine.io/entwine-point-tile.html#ept-data)
 * @property {string} id - The id of the node, constituted of the four
 * components: `depth-x-y-z`.
 */


var EntwinePointTileNode = /*#__PURE__*/function (_PointCloudNode) {
  (0, _inherits2["default"])(EntwinePointTileNode, _PointCloudNode);

  var _super = _createSuper(EntwinePointTileNode);

  /**
   * Constructs a new instance of EntwinePointTileNode.
   *
   * @constructor
   *
   * @param {number} depth - The depth of the node in the tree - see the
   * [Entwine
   * documentation](https://entwine.io/entwine-point-tile.html#ept-data)
   * @param {number} x - The x coordinate of the node in the tree - see the
   * [Entwine
   * documentation](https://entwine.io/entwine-point-tile.html#ept-data)
   * @param {number} y - The x coordinate of the node in the tree - see the
   * [Entwine
   * documentation](https://entwine.io/entwine-point-tile.html#ept-data)
   * @param {number} z - The x coordinate of the node in the tree - see the
   * [Entwine
   * documentation](https://entwine.io/entwine-point-tile.html#ept-data)
   * @param {EntwinePointTileLayer} layer - The layer the node is attached to.
   * @param {number} [numPoints=0] - The number of points in this node. If
   * `-1`, it means that the octree hierarchy associated to this node needs to
   * be loaded.
   */
  function EntwinePointTileNode(depth, x, y, z, layer) {
    var _this;

    var numPoints = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
    (0, _classCallCheck2["default"])(this, EntwinePointTileNode);
    _this = _super.call(this, numPoints, layer);
    _this.isEntwinePointTileNode = true;
    _this.depth = depth;
    _this.x = x;
    _this.y = y;
    _this.z = z;
    _this.id = buildId(depth, x, y, z);
    _this.url = "".concat(_this.layer.source.url, "/ept-data/").concat(_this.id, ".").concat(_this.layer.source.extension);
    return _this;
  }

  (0, _createClass2["default"])(EntwinePointTileNode, [{
    key: "createChildAABB",
    value: function createChildAABB(node) {
      // factor to apply, based on the depth difference (can be > 1)
      var f = Math.pow(2, node.depth - this.depth); // size of the child node bbox (Vector3), based on the size of the
      // parent node, and divided by the factor

      this.bbox.getSize(size).divideScalar(f); // initialize the child node bbox at the location of the parent node bbox

      node.bbox.min.copy(this.bbox.min); // position of the parent node, if it was at the same depth than the
      // child, found by multiplying the tree position by the factor

      position.copy(this).multiplyScalar(f); // difference in position between the two nodes, at child depth, and
      // scale it using the size

      translation.subVectors(node, position).multiply(size); // apply the translation to the child node bbox

      node.bbox.min.add(translation); // use the size computed above to set the max

      node.bbox.max.copy(node.bbox.min).add(size);
    }
  }, {
    key: "octreeIsLoaded",
    get: function get() {
      return this.numPoints >= 0;
    }
  }, {
    key: "loadOctree",
    value: function loadOctree() {
      var _this2 = this;

      return _Fetcher["default"].json("".concat(this.layer.source.url, "/ept-hierarchy/").concat(this.id, ".json"), this.layer.source.networkOptions).then(function (hierarchy) {
        _this2.numPoints = hierarchy[_this2.id];
        var stack = [];
        stack.push(_this2);

        while (stack.length) {
          var node = stack.shift();
          var depth = node.depth + 1;
          var x = node.x * 2;
          var y = node.y * 2;
          var z = node.z * 2;
          node.findAndCreateChild(depth, x, y, z, hierarchy, stack);
          node.findAndCreateChild(depth, x + 1, y, z, hierarchy, stack);
          node.findAndCreateChild(depth, x, y + 1, z, hierarchy, stack);
          node.findAndCreateChild(depth, x + 1, y + 1, z, hierarchy, stack);
          node.findAndCreateChild(depth, x, y, z + 1, hierarchy, stack);
          node.findAndCreateChild(depth, x + 1, y, z + 1, hierarchy, stack);
          node.findAndCreateChild(depth, x, y + 1, z + 1, hierarchy, stack);
          node.findAndCreateChild(depth, x + 1, y + 1, z + 1, hierarchy, stack);
        }
      });
    }
  }, {
    key: "findAndCreateChild",
    value: function findAndCreateChild(depth, x, y, z, hierarchy, stack) {
      var id = buildId(depth, x, y, z);
      var numPoints = hierarchy[id];

      if (typeof numPoints == 'number') {
        var child = new EntwinePointTileNode(depth, x, y, z, this.layer, numPoints);
        this.add(child);
        stack.push(child);
      }
    }
  }]);
  return EntwinePointTileNode;
}(_PointCloudNode2["default"]);

var _default = EntwinePointTileNode;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Feature.js":
/*!*************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Feature.js ***!
  \*************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.FeatureGeometry = exports.FeatureCollection = exports.FeatureBuildingOptions = exports.FEATURE_TYPES = void 0;

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

var _classPrivateFieldSet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldSet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ./Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ./Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ./Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

var _Style = _interopRequireDefault(__webpack_require__(/*! ./Style */ "./node_modules/itowns/lib/Core/Style.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

function defaultExtent(crs) {
  return new _Extent["default"](crs, Infinity, -Infinity, Infinity, -Infinity);
}

function _extendBuffer(feature, size) {
  feature.vertices.length += size * feature.size;

  if (feature.normals) {
    feature.normals.length = feature.vertices.length;
  }
}

function _setGeometryValues(geom, feature, _long, lat, alt, normal) {
  if (feature.normals) {
    normal.toArray(feature.normals, feature._pos);
  }

  feature._pushValues(_long, lat, alt);

  if (geom.size == 3) {
    geom.altitude.min = Math.min(geom.altitude.min, alt);
    geom.altitude.max = Math.max(geom.altitude.max, alt);
  }
}

var coordOut = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var FEATURE_TYPES = {
  POINT: 0,
  LINE: 1,
  POLYGON: 2
};
exports.FEATURE_TYPES = FEATURE_TYPES;
var typeToStyleProperty = ['point', 'stroke', 'fill'];
/**
 * @property {string} crs - The CRS to convert the input coordinates to.
 * @property {string} [structure='2d'] - data structure type : 2d or 3d.
 * If the structure is 3d, the feature have 3 dimensions by vertices positions and
 * a normal for each vertices.
 * @property {Extent|boolean} [filteringExtent=undefined] - Optional filter to reject
 * features outside of extent. Extent filtering is file extent if filteringExtent is true.
 * @property {boolean} [buildExtent] - If true the geometry will
 * have an extent property containing the area covered by the geometry.
 * Default value is false if `structure` parameter is set to '3d', and true otherwise.
 * True if the layer does not inherit from {@link GeometryLayer}.
 * @property {string} forcedExtentCrs - force feature extent crs if buildExtent is true.
 * @property {function} [filter] - Filter function to remove features
 * @property {boolean} [mergeFeatures=true] - If true all geometries are merged by type and multi-type.
 * @property {Style} style - The style to inherit when creating
 * style for all new features.
 *
*/

var FeatureBuildingOptions = /*#__PURE__*/(0, _createClass2["default"])(function FeatureBuildingOptions() {
  (0, _classCallCheck2["default"])(this, FeatureBuildingOptions);
});
/**
 * @property {Extent} extent - The 2D extent containing all the points
 * composing the geometry.
 * @property {Object[]} indices - Contains the indices that define the geometry.
 * Objects stored in this array have two properties, an `offset` and a `count`.
 * The offset is related to the overall number of vertices in the Feature.
 *
 * @property {Object} properties - Properties of the geometry. It can be
 * anything specified in the GeoJSON under the `properties` property.
 */

exports.FeatureBuildingOptions = FeatureBuildingOptions;

var _currentExtent = /*#__PURE__*/new WeakMap();

var FeatureGeometry = /*#__PURE__*/function () {
  /**
   * @param {Feature} feature geometry
   */
  function FeatureGeometry(feature) {
    (0, _classCallCheck2["default"])(this, FeatureGeometry);

    _classPrivateFieldInitSpec(this, _currentExtent, {
      writable: true,
      value: void 0
    });

    this.indices = [];
    this.properties = {};
    this.size = feature.size;

    if (feature.extent) {
      this.extent = defaultExtent(feature.extent.crs);
      (0, _classPrivateFieldSet2["default"])(this, _currentExtent, defaultExtent(feature.extent.crs));
    }

    this.altitude = {
      min: Infinity,
      max: -Infinity
    };
  }
  /**
   * Add a new marker to indicate the starting of sub geometry and extends the vertices buffer.
   * Then you have to push new the coordinates of sub geometry.
   * The sub geometry stored in indices, see constructor for more information.
   * @param {number} count - count of vertices
   * @param {Feature} feature - the feature containing the geometry
   */


  (0, _createClass2["default"])(FeatureGeometry, [{
    key: "startSubGeometry",
    value: function startSubGeometry(count, feature) {
      var last = this.indices.length - 1;
      var extent = this.extent ? defaultExtent(this.extent.crs) : undefined;
      var offset = last > -1 ? this.indices[last].offset + this.indices[last].count : feature.vertices.length / this.size;
      this.indices.push({
        offset: offset,
        count: count,
        extent: extent
      });
      (0, _classPrivateFieldSet2["default"])(this, _currentExtent, extent);

      _extendBuffer(feature, count);
    }
    /**
     * After you have pushed new the coordinates of sub geometry without
     * `startSubGeometry`, this function close sub geometry. The sub geometry
     * stored in indices, see constructor for more information.
     * @param {number} count count of vertices
     * @param {Feature} feature - the feature containing the geometry
     */

  }, {
    key: "closeSubGeometry",
    value: function closeSubGeometry(count, feature) {
      var last = this.indices.length - 1;
      var offset = last > -1 ? this.indices[last].offset + this.indices[last].count : feature.vertices.length / this.size - count;
      this.indices.push({
        offset: offset,
        count: count,
        extent: (0, _classPrivateFieldGet2["default"])(this, _currentExtent)
      });

      if (this.extent) {
        this.extent.union((0, _classPrivateFieldGet2["default"])(this, _currentExtent));
        (0, _classPrivateFieldSet2["default"])(this, _currentExtent, defaultExtent(this.extent.crs));
      }
    }
  }, {
    key: "getLastSubGeometry",
    value: function getLastSubGeometry() {
      var last = this.indices.length - 1;
      return this.indices[last];
    }
  }, {
    key: "baseAltitude",
    value: function baseAltitude(feature, coordinates) {
      var base_altitude = feature.style[typeToStyleProperty[feature.type]].base_altitude || 0;
      return isNaN(base_altitude) ? base_altitude(this.properties, coordinates) : base_altitude;
    }
    /**
     * Push new coordinates in vertices buffer.
     * @param {Coordinates} coordIn The coordinates to push.
     * @param {Feature} feature - the feature containing the geometry
     */

  }, {
    key: "pushCoordinates",
    value: function pushCoordinates(coordIn, feature) {
      coordIn.z = this.baseAltitude(feature, coordIn);
      coordIn.as(feature.crs, coordOut);
      feature.transformToLocalSystem(coordOut);

      _setGeometryValues(this, feature, coordOut.x, coordOut.y, coordOut.z, coordOut.geodesicNormal); // expand extent if present


      if ((0, _classPrivateFieldGet2["default"])(this, _currentExtent)) {
        (0, _classPrivateFieldGet2["default"])(this, _currentExtent).expandByCoordinates(feature.useCrsOut ? coordOut : coordIn);
      }
    }
    /**
     * Push new values coordinates in vertices buffer.
     * No geographical conversion is made or the normal doesn't stored.
     * No local transformation is made on coordinates.
     *
     * @param {Feature} feature - the feature containing the geometry
     * @param {number} long The longitude coordinate.
     * @param {number} lat The latitude coordinate.
     * @param {THREE.Vector3} [normal] the normal on coordinates (only for `EPSG:4978` projection).
     */

  }, {
    key: "pushCoordinatesValues",
    value: function pushCoordinatesValues(feature, _long2, lat, normal) {
      var altitude = this.baseAltitude(feature);

      _setGeometryValues(this, feature, _long2, lat, altitude, normal); // expand extent if present


      if ((0, _classPrivateFieldGet2["default"])(this, _currentExtent)) {
        (0, _classPrivateFieldGet2["default"])(this, _currentExtent).expandByValuesCoordinates(_long2, lat);
      }
    }
    /**
     * update geometry extent with the last sub geometry extent.
     */

  }, {
    key: "updateExtent",
    value: function updateExtent() {
      if (this.extent) {
        var last = this.indices[this.indices.length - 1];

        if (last) {
          this.extent.union(last.extent);
        }
      }
    }
  }]);
  return FeatureGeometry;
}();

exports.FeatureGeometry = FeatureGeometry;

function push2DValues(value0, value1) {
  this.vertices[this._pos++] = value0;
  this.vertices[this._pos++] = value1;
}

function push3DValues(value0, value1) {
  var value2 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
  this.vertices[this._pos++] = value0;
  this.vertices[this._pos++] = value1;
  this.vertices[this._pos++] = value2;
}
/**
 *
 * This class improves and simplifies the construction and conversion of geographic data structures.
 * It's an intermediary structure between geomatic formats and THREE objects.
 *
 * **Warning**, the data (`extent` or `Coordinates`) can be stored in a local system.
 * To use vertices or extent in `Feature.crs` projection,
 * it's necessary to transform `Coordinates` or `Extent` by `FeatureCollection.matrixWorld`.
 *
 * ```js
 * // To have feature extent in featureCollection.crs projection:
 * feature.extent.applyMatrix4(featureCollection.matrixWorld);
 *
 * // To have feature vertex in feature.crs projection:
 * coord.crs = feature.crs;
 * coord.setFromArray(feature.vertices)
 * coord.applyMatrix4(featureCollection.matrixWorld);
 *```
 *
 * @property {string} type - Geometry type, can be `point`, `line`, or
 * `polygon`.
 * @property {number[]} vertices - All the vertices of the Feature.
 * @property {number[]} normals - All the normals of the Feature.
 * @property {number} size - the number of values of the array that should be associated with a coordinates.
 * The size is 3 with altitude and 2 without altitude.
 * @property {string} crs - Geographic or Geocentric coordinates system.
 * @property {FeatureGeometry[]} geometries - An array containing all {@link
 * FeatureGeometry}.
 * @property {Extent?} extent - The extent containing all the geometries
 * composing the feature.
 */


var Feature = /*#__PURE__*/function () {
  /**
   *
   * @param {string} type type of Feature. It can be 'point', 'line' or 'polygon'.
   * @param {FeatureCollection} collection Parent feature collection.
   */
  function Feature(type, collection) {
    (0, _classCallCheck2["default"])(this, Feature);

    if (Object.keys(FEATURE_TYPES).find(function (t) {
      return FEATURE_TYPES[t] === type;
    })) {
      this.type = type;
    } else {
      throw new Error("Unsupported Feature type: ".concat(type));
    }

    this.geometries = [];
    this.vertices = [];
    this.crs = collection.crs;
    this.size = collection.size;
    this.normals = collection.crs == 'EPSG:4978' ? [] : undefined;
    this.transformToLocalSystem = collection.transformToLocalSystem.bind(collection);

    if (collection.extent) {
      // this.crs is final crs projection, is out projection.
      // If the extent crs is the same then we use output coordinate (coordOut) to expand it.
      this.extent = defaultExtent(collection.extent.crs);
      this.useCrsOut = this.extent.crs == this.crs;
    }

    this._pos = 0;
    this._pushValues = (this.size === 3 ? push3DValues : push2DValues).bind(this);
    this.style = new _Style["default"]({}, collection.style);
    this.altitude = {
      min: Infinity,
      max: -Infinity
    };
  }
  /**
   * Instance a new {@link FeatureGeometry}  and push in {@link Feature}.
   * @returns {FeatureGeometry} the instancied geometry.
   */


  (0, _createClass2["default"])(Feature, [{
    key: "bindNewGeometry",
    value: function bindNewGeometry() {
      var geometry = new FeatureGeometry(this);
      this.geometries.push(geometry);
      return geometry;
    }
    /**
     * Update {@link Extent} feature with {@link Extent} geometry
     * @param {FeatureGeometry} geometry used to update Feature {@link Extent}
     */

  }, {
    key: "updateExtent",
    value: function updateExtent(geometry) {
      if (this.extent) {
        this.extent.union(geometry.extent);
      }

      if (this.size == 3) {
        this.altitude.min = Math.min(this.altitude.min, geometry.altitude.min);
        this.altitude.max = Math.max(this.altitude.max, geometry.altitude.max);
      }
    }
    /**
     * @returns {number} the count of geometry.
     */

  }, {
    key: "geometryCount",
    get: function get() {
      return this.geometries.length;
    }
  }]);
  return Feature;
}();

var _default = Feature;
exports["default"] = _default;

var doNothing = function () {};

var transformToLocalSystem3D = function (coord, collection) {
  coord.geodesicNormal.applyNormalMatrix(collection.normalMatrixInverse);
  return coord.applyMatrix4(collection.matrixWorldInverse);
};

var transformToLocalSystem2D = function (coord, collection) {
  return coord.applyMatrix4(collection.matrixWorldInverse);
};

var axisZ = new THREE.Vector3(0, 0, 1);
var alignYtoEast = new THREE.Quaternion();
/**
 * An object regrouping a list of [features]{@link Feature} and the extent of this collection.
 * **Warning**, the data (`extent` or `Coordinates`) can be stored in a local system.
 * The local system center is the `center` property.
 * To use `Feature` vertices or `FeatureCollection/Feature` extent in FeatureCollection.crs projection,
 * it's necessary to transform `Coordinates` or `Extent` by `FeatureCollection.matrixWorld`.
 *
 * ```js
 * // To have featureCollection extent in featureCollection.crs projection:
 * featureCollection.extent.applyMatrix4(featureCollection.matrixWorld);
 *
 * // To have feature vertex in featureCollection.crs projection:
 * const vertices = featureCollection.features[0].vertices;
 * coord.crs = featureCollection.crs;
 * coord.setFromArray(vertices)
 * coord.applyMatrix4(featureCollection.matrixWorld);
 *```
 *
 * @extends THREE.Object3D
 *
 * @property {Feature[]} features - The array of features composing the
 * collection.
 * @property {Extent?} extent - The 2D extent containing all the features
 * composing the collection. The extent projection is the same local projection `FeatureCollection`.
 * To transform `FeatureCollection.extent` to `FeatureCollection.crs` projection, the transformation matrix must be applied.
 *
 * **WARNING** if crs is `EPSG:4978` because the 3d geocentric system doesn't work with 2D `Extent`,
 * The FeatureCollection.extent projection is the original projection.
 * In this case, there isn't need to transform the extent.
 *
 * @property {string} crs - Geographic or Geocentric coordinates system.
 * @property {boolean} isFeatureCollection - Used to check whether this is FeatureCollection.
 * @property {number} size - The size structure, it's 3 for 3d and 2 for 2d.
 * @property {Style} style - The collection style used to display the feature collection.
 * @property {boolean} isInverted - This option is to be set to the
 * correct value, true or false (default being false), if the computation of
 * the coordinates needs to be inverted to same scheme as OSM, Google Maps
 * or other system. See [this link]{@link
 * https://alastaira.wordpress.com/2011/07/06/converting-tms-tile-coordinates-to-googlebingosm-tile-coordinates}
 * for more informations.
 * @property {THREE.Matrix4} matrixWorldInverse - The matrix world inverse.
 * @property {Coordinates} center - The local center coordinates in `EPSG:4326`.
 * The local system is centred in this center.
 *
 */

var _transformToLocalSystem = /*#__PURE__*/new WeakMap();

var _setLocalSystem = /*#__PURE__*/new WeakMap();

var FeatureCollection = /*#__PURE__*/function (_THREE$Object3D) {
  (0, _inherits2["default"])(FeatureCollection, _THREE$Object3D);

  var _super = _createSuper(FeatureCollection);

  /**
   * @param      {FeatureBuildingOptions|Layer}  options  The building options .
   */
  function FeatureCollection(options) {
    var _options$source;

    var _this;

    (0, _classCallCheck2["default"])(this, FeatureCollection);
    _this = _super.call(this);

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _transformToLocalSystem, {
      writable: true,
      value: transformToLocalSystem2D
    });

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _setLocalSystem, {
      writable: true,
      value: doNothing
    });

    _this.isFeatureCollection = true;
    _this.crs = _Crs["default"].formatToEPSG(options.accurate || !((_options$source = options.source) !== null && _options$source !== void 0 && _options$source.crs) ? options.crs : options.source.crs);
    _this.features = [];
    _this.mergeFeatures = options.mergeFeatures === undefined ? true : options.mergeFeatures;
    _this.size = options.structure == '3d' ? 3 : 2;
    _this.filterExtent = options.filterExtent;
    _this.style = options.style;
    _this.isInverted = false;
    _this.matrixWorldInverse = new THREE.Matrix4();
    _this.center = new _Coordinates["default"]('EPSG:4326', 0, 0);

    if (_this.size == 2) {
      _this.extent = options.buildExtent === false ? undefined : defaultExtent(options.forcedExtentCrs || _this.crs);
      (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _setLocalSystem, function (center) {
        // set local system center
        center.as('EPSG:4326', _this.center); // set position to local system center

        _this.position.copy(center);

        _this.updateMatrixWorld();

        (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _setLocalSystem, doNothing);
      });
    } else {
      _this.extent = options.buildExtent ? defaultExtent(options.forcedExtentCrs || _this.crs) : undefined;
      (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _setLocalSystem, function (center) {
        // set local system center
        center.as('EPSG:4326', _this.center);

        if (_this.crs == 'EPSG:4978') {
          // align Z axe to geodesic normal.
          _this.quaternion.setFromUnitVectors(axisZ, center.geodesicNormal); // align Y axe to East


          alignYtoEast.setFromAxisAngle(axisZ, THREE.MathUtils.degToRad(90 + _this.center.longitude));

          _this.quaternion.multiply(alignYtoEast);
        } // set position to local system center


        _this.position.copy(center);

        _this.updateMatrixWorld();

        _this.normalMatrix.getNormalMatrix(_this.matrix);

        _this.normalMatrixInverse = new THREE.Matrix3().copy(_this.normalMatrix).invert();
        (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _setLocalSystem, doNothing);
      });
      (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _transformToLocalSystem, transformToLocalSystem3D);
    }

    _this.altitude = {
      min: Infinity,
      max: -Infinity
    };
    return _this;
  }
  /**
   * Apply the matrix World inverse on the coordinates.
   * This method is used when the coordinates is pushed
   * to transform it in local system.
   *
   * @param   {Coordinates}  coordinates  The coordinates
   * @returns {Coordinates} The coordinates in local system
   */


  (0, _createClass2["default"])(FeatureCollection, [{
    key: "transformToLocalSystem",
    value: function transformToLocalSystem(coordinates) {
      (0, _classPrivateFieldGet2["default"])(this, _setLocalSystem).call(this, coordinates);
      return (0, _classPrivateFieldGet2["default"])(this, _transformToLocalSystem).call(this, coordinates, this);
    }
    /**
     * Update FeatureCollection extent with `extent` or all features extent if
     * `extent` is `undefined`.
     * @param {Extent} extent
     */

  }, {
    key: "updateExtent",
    value: function updateExtent(extent) {
      if (this.extent) {
        var extents = extent ? [extent] : this.features.map(function (feature) {
          return feature.extent;
        });

        var _iterator = _createForOfIteratorHelper(extents),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var ext = _step.value;
            this.extent.union(ext);
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      }

      if (this.size == 3) {
        var _iterator2 = _createForOfIteratorHelper(this.features),
            _step2;

        try {
          for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
            var feature = _step2.value;
            this.altitude.min = Math.min(this.altitude.min, feature.altitude.min);
            this.altitude.max = Math.max(this.altitude.max, feature.altitude.max);
          }
        } catch (err) {
          _iterator2.e(err);
        } finally {
          _iterator2.f();
        }
      }

      this.altitude.min = this.altitude.min == Infinity ? 0 : this.altitude.min;
      this.altitude.max = this.altitude.max == -Infinity ? 0 : this.altitude.max;
    }
    /**
     * Updates the global transform of the object and its descendants.
     *
     * @param {booolean}  force   The force
     */

  }, {
    key: "updateMatrixWorld",
    value: function updateMatrixWorld(force) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(FeatureCollection.prototype), "updateMatrixWorld", this).call(this, force);
      this.matrixWorldInverse.copy(this.matrixWorld).invert();
    }
    /**
     * Remove features that don't have [FeatureGeometry]{@link FeatureGeometry}.
     */

  }, {
    key: "removeEmptyFeature",
    value: function removeEmptyFeature() {
      this.features = this.features.filter(function (feature) {
        return feature.geometries.length;
      });
    }
    /**
     * Push the `feature` in FeatureCollection.
     * @param {Feature} feature
     */

  }, {
    key: "pushFeature",
    value: function pushFeature(feature) {
      this.features.push(feature);
      this.updateExtent(feature.extent);
    }
  }, {
    key: "requestFeature",
    value: function requestFeature(type, callback) {
      var feature = this.features.find(callback);

      if (feature && this.mergeFeatures) {
        return feature;
      } else {
        var newFeature = new Feature(type, this);
        this.features.push(newFeature);
        return newFeature;
      }
    }
    /**
     * Returns the Feature by type if `mergeFeatures` is `true` or returns the
     * new instance of typed Feature.
     *
     * @param {string} type the type requested
     * @returns {Feature}
     */

  }, {
    key: "requestFeatureByType",
    value: function requestFeatureByType(type) {
      return this.requestFeature(type, function (feature) {
        return feature.type === type;
      });
    }
    /**
     * Returns the Feature by type if `mergeFeatures` is `true` or returns the
     * new instance of typed Feature.
     *
     * @param {string} id the id requested
     * @param {string} type the type requested
     * @returns {Feature}
     */

  }, {
    key: "requestFeatureById",
    value: function requestFeatureById(id, type) {
      return this.requestFeature(type, function (feature) {
        return feature.id === id;
      });
    }
    /**
     * Add a new feature with references to all properties.
     * It allows to have features with different styles
     * without having to duplicate the geometry.
     * @param      {Feature}   feature  The feature to reference.
     * @return     {Feature}  The new referenced feature
     */

  }, {
    key: "newFeatureByReference",
    value: function newFeatureByReference(feature) {
      var ref = new Feature(feature.type, this);
      ref.extent = feature.extent;
      ref.geometries = feature.geometries;
      ref.normals = feature.normals;
      ref.size = feature.size;
      ref.vertices = feature.vertices;
      ref.altitude.min = feature.altitude.min;
      ref.altitude.max = feature.altitude.max;
      ref._pos = feature._pos;
      this.features.push(ref);
      return ref;
    }
  }, {
    key: "setParentStyle",
    value: function setParentStyle(style) {
      if (style) {
        this.features.forEach(function (f) {
          f.style.parent = style;
        });
      }
    }
  }]);
  return FeatureCollection;
}(THREE.Object3D);

exports.FeatureCollection = FeatureCollection;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Geographic/CoordStars.js":
/*!***************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Geographic/CoordStars.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ./Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

/**
 * Generated On: 2016-02-25
 * Class: CoordStars
 * Description: get coord of stars like earth...
 */
var CoordStars = {
  getSunPosition: function getSunPosition() {
    var m = Math;
    var PI = m.PI;
    var sin = m.sin;
    var cos = m.cos;
    var tan = m.tan;
    var asin = m.asin;
    var atan = m.atan2;
    var rad = PI / 180;
    var e = rad * 23.4397; // obliquity of the Earth

    function toJulian(date) {
      return date.valueOf() / (1000 * 60 * 60 * 24) - 0.5 + 2440588;
    }

    function toDays(date) {
      return toJulian(date) - 2451545;
    }

    function getRightAscension(l, b) {
      return atan(sin(l) * cos(e) - tan(b) * sin(e), cos(l));
    }

    function getDeclination(l, b) {
      return asin(sin(b) * cos(e) + cos(b) * sin(e) * sin(l));
    }

    function getAzimuth(H, phi, dec) {
      return atan(sin(H), cos(H) * sin(phi) - tan(dec) * cos(phi));
    }

    function getAltitude(H, phi, dec) {
      return asin(sin(phi) * sin(dec) + cos(phi) * cos(dec) * cos(H));
    }

    function getSiderealTime(d, lw) {
      return rad * (280.16 + 360.9856235 * d) - lw;
    }

    function getSolarMeanAnomaly(d) {
      return rad * (357.5291 + 0.98560028 * d);
    }

    function getEquationOfCenter(M) {
      return rad * (1.9148 * sin(M) + 0.0200 * sin(2 * M) + 0.0003 * sin(3 * M));
    }

    function getEclipticLongitude(M, C) {
      // perihelion of the Earth
      return M + C + rad * 102.9372 + PI;
    }

    return function (date, lat, lon) {
      var phi = rad * lat;
      var d = toDays(date);
      var M = getSolarMeanAnomaly(d);
      var C = getEquationOfCenter(M);
      var L = getEclipticLongitude(M, C);
      var D = getDeclination(L, 0);
      var A = getRightAscension(L, 0);
      var t = getSiderealTime(d, rad * -lon);
      var H = t - A;
      return {
        EclipticLongitude: L,
        declinaison: D,
        ascension: A,
        H: H,
        SiderealTime: t,
        altitude: getAltitude(H, phi, D),
        azimuth: getAzimuth(H, phi, D) + PI / 2 // + PI// - PI/2 // origin: north !!! not like original Mourner code but more classical ref

      };
    };
  },
  // Return scene coordinate ({x,y,z}) of sun
  getSunPositionInScene: function getSunPositionInScene(date, lat, lon) {
    var sun = CoordStars.getSunPosition()(date, lat, lon);
    var dayMilliSec = 24 * 3600000;
    var longitude = sun.ascension + date % dayMilliSec / dayMilliSec * -360 + 180; // cause midday

    var coSunCarto = new _Coordinates["default"]('EPSG:4326', longitude, lat, 50000000).as('EPSG:4978').toVector3();
    return coSunCarto;
  }
};
var _default = CoordStars;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Geographic/Coordinates.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _proj = _interopRequireDefault(__webpack_require__(/*! proj4 */ "./node_modules/proj4/lib/index.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ./Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

var _Ellipsoid = _interopRequireDefault(__webpack_require__(/*! ../Math/Ellipsoid */ "./node_modules/itowns/lib/Core/Math/Ellipsoid.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

_proj["default"].defs('EPSG:4978', '+proj=geocent +datum=WGS84 +units=m +no_defs');

var ellipsoid = new _Ellipsoid["default"]();
var projectionCache = {};
var v0 = new THREE.Vector3();
var v1 = new THREE.Vector3();
var coord0;
var coord1;

function proj4cache(crsIn, crsOut) {
  if (!projectionCache[crsIn]) {
    projectionCache[crsIn] = {};
  }

  if (!projectionCache[crsIn][crsOut]) {
    projectionCache[crsIn][crsOut] = (0, _proj["default"])(crsIn, crsOut);
  }

  return projectionCache[crsIn][crsOut];
}
/**
 * A Coordinates object, defined by a [crs]{@link http://inspire.ec.europa.eu/theme/rs}
 * and three values. These values are accessible through `x`, `y` and `z`,
 * although it can also be accessible through `latitude`, `longitude` and
 * `altitude`. To change a value, prefer the `set()` method below.
 *
 * @property {boolean} isCoordinates - Used to checkout whether this coordinates
 * is a Coordinates. Default is true. You should not change this, as it is used
 * internally for optimisation.
 * @property {string} crs - A supported crs by default in
 * [`proj4js`](https://github.com/proj4js/proj4js#named-projections), or an
 * added crs to `proj4js` (using `proj4.defs`). Note that `EPSG:4978` is also
 * supported by default in itowns.
 * @property {number} x - The first value of the coordinate.
 * @property {number} y - The second value of the coordinate.
 * @property {number} z - The third value of the coordinate.
 * @property {number} latitude - The first value of the coordinate.
 * @property {number} longitude - The second value of the coordinate.
 * @property {number} altitude - The third value of the coordinate.
 * @property {THREE.Vector3} geodesicNormal - The geodesic normal of the
 * coordinate.
 *
 * @example
 * new Coordinates('EPSG:4978', 20885167, 849862, 23385912); //Geocentric coordinates
 *
 * @example
 * new Coordinates('EPSG:4326', 2.33, 48.24, 24999549); //Geographic coordinates
 */


var Coordinates = /*#__PURE__*/function () {
  /**
   * @constructor
   *
   * @param {string} crs - A supported crs (see the `crs` property below).
   * @param {number|Array<number>|Coordinates|THREE.Vector3} [v0=0] -
   * x or longitude value, or a more complex one: it can be an array of three
   * numbers, being x/lon, x/lat, z/alt, or it can be `THREE.Vector3`. It can
   * also simply be a Coordinates.
   * @param {number} [v1=0] - y or latitude value.
   * @param {number} [v2=0] - z or altitude value.
   */
  function Coordinates(crs) {
    var v0 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
    var v1 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
    var v2 = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
    (0, _classCallCheck2["default"])(this, Coordinates);
    this.isCoordinates = true;

    _Crs["default"].isValid(crs);

    this.crs = crs; // Storing the coordinates as is, not in arrays, as it is
    // slower (see https://jsbench.me/40jumfag6g/1)

    this.x = 0;
    this.y = 0;
    this.z = 0; // Normal

    this._normal = new THREE.Vector3();

    if (v0.length > 0) {
      this.setFromArray(v0);
    } else if (v0.isVector3 || v0.isCoordinates) {
      this.setFromVector3(v0);
    } else {
      this.setFromValues(v0, v1, v2);
    }

    this._normalNeedsUpdate = true;
  }
  /**
   * Set the values of this Coordinates.
   *
   * @param {number} [v0=0] - x or longitude value.
   * @param {number} [v1=0] - y or latitude value.
   * @param {number} [v2=0] - z or altitude value.
   *
   * @return {Coordinates} This Coordinates.
   */


  (0, _createClass2["default"])(Coordinates, [{
    key: "setFromValues",
    value: function setFromValues() {
      var v0 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
      var v1 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
      var v2 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
      this.x = v0 == undefined ? 0 : v0;
      this.y = v1 == undefined ? 0 : v1;
      this.z = v2 == undefined ? 0 : v2;
      this._normalNeedsUpdate = true;
      return this;
    }
    /**
     * Set the values of this Coordinates from an array.
     *
     * @param {Array<number>} array - An array of number to assign to the
     * Coordinates.
     * @param {number} [offset] - Optional offset into the array.
     *
     * @return {Coordinates} This Coordinates.
     */

  }, {
    key: "setFromArray",
    value: function setFromArray(array) {
      var offset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
      return this.setFromValues(array[offset], array[offset + 1], array[offset + 2]);
    }
    /**
     * Set the values of this Coordinates from a `THREE.Vector3` or an `Object`
     * having `x/y/z` properties, like a `Coordinates`.
     *
     * @param {THREE.Vector3|Coordinates} v0 - The object to read the values
     * from.
     *
     * @return {Coordinates} This Coordinates.
     */

  }, {
    key: "setFromVector3",
    value: function setFromVector3(v0) {
      return this.setFromValues(v0.x, v0.y, v0.z);
    }
    /**
     * Returns a new Coordinates with the same values as this one. It will
     * instantiate a new Coordinates with the same CRS as this one.
     *
     * @return {Coordinates} The target with its new coordinates.
     */

  }, {
    key: "clone",
    value: function clone() {
      return new Coordinates(this.crs, this);
    }
    /**
     * Copies the values of the passed Coordinates to this one. The CRS is
     * however not copied.
     *
     * @param {Coordinates} src - The source to copy from.
     *
     * @return {Coordinates} This Coordinates.
     */

  }, {
    key: "copy",
    value: function copy(src) {
      this.crs = src.crs;
      return this.setFromVector3(src);
    }
  }, {
    key: "longitude",
    get: function get() {
      return this.x;
    }
  }, {
    key: "latitude",
    get: function get() {
      return this.y;
    }
  }, {
    key: "altitude",
    get: function get() {
      return this.z;
    },
    set: function set(value) {
      this.z = value;
    }
  }, {
    key: "geodesicNormal",
    get: function get() {
      if (this._normalNeedsUpdate) {
        this._normalNeedsUpdate = false;

        if (_Crs["default"].is4326(this.crs)) {
          ellipsoid.geodeticSurfaceNormalCartographic(this, this._normal);
        } else if (this.crs == 'EPSG:4978') {
          ellipsoid.geodeticSurfaceNormal(this, this._normal);
        } else {
          this._normal.set(0, 0, 1);
        }
      }

      return this._normal;
    }
    /**
     * Return this Coordinates values into a `THREE.Vector3`.
     *
     * @param {THREE.Vector3} [target] - The target to put the values in. If not
     * specified, a new vector will be created.
     *
     * @return {THREE.Vector3}
     */

  }, {
    key: "toVector3",
    value: function toVector3() {
      var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : new THREE.Vector3();
      return target.copy(this);
    }
    /**
     * Calculate planar distance between this coordinates and `coord`.
     * Planar distance is the straight-line euclidean distance calculated in a 2D cartesian coordinate system.
     *
     * @param  {Coordinates}  coord  The coordinate
     * @return {number} planar distance
     *
     */

  }, {
    key: "planarDistanceTo",
    value: function planarDistanceTo(coord) {
      this.toVector3(v0).setZ(0);
      coord.toVector3(v1).setZ(0);
      return v0.distanceTo(v1);
    }
    /**
     * Calculate geodetic distance between this coordinates and `coord`.
     * **Geodetic distance** is calculated in an ellispoid space as the shortest distance
     * across the curved surface of the world.
     *
     * => As the crow flies/ Orthodromy
     *
     * @param  {Coordinates}  coord  The coordinate
     * @return {number} geodetic distance
     *
     */

  }, {
    key: "geodeticDistanceTo",
    value: function geodeticDistanceTo(coord) {
      this.as('EPSG:4326', coord0);
      coord.as('EPSG:4326', coord1);
      return ellipsoid.geodesicDistance(coord0, coord1);
    }
    /**
     * Calculate earth euclidean distance between this coordinates and `coord`.
     *
     * @param  {Coordinates}  coord  The coordinate
     * @return {number} earth euclidean distance
     *
     */

  }, {
    key: "spatialEuclideanDistanceTo",
    value: function spatialEuclideanDistanceTo(coord) {
      this.as('EPSG:4978', coord0).toVector3(v0);
      coord.as('EPSG:4978', coord1).toVector3(v1);
      return v0.distanceTo(v1);
    }
    /**
     * Multiplies this `coordinates` (with an implicit 1 in the 4th dimension) and `mat`.
     *
     * @param      {THREE.Matrix4}  mat The matrix.
     * @return     {Coordinates}  return this object.
     */

  }, {
    key: "applyMatrix4",
    value: function applyMatrix4(mat) {
      return THREE.Vector3.prototype.applyMatrix4.call(this, mat);
    }
    /**
     * Returns coordinates in the wanted [CRS]{@link http://inspire.ec.europa.eu/theme/rs}.
     *
     * @param {string} crs - The CRS to convert the Coordinates into.
     * @param {Coordinates} [target] - The target to put the converted
     * Coordinates into. If not specified a new one will be created.
     *
     * @return {Coordinates} - The resulting Coordinates after the conversion.
     *
     * @example
     * const position = { longitude: 2.33, latitude: 48.24, altitude: 24999549 };
     * const coords = new Coordinates('EPSG:4326', position.longitude, position.latitude, position.altitude); // Geographic system
     * const coordinates = coords.as('EPSG:4978'); // Geocentric system
     *
     * @example
     * const position = { x: 20885167, y: 849862, z: 23385912 };
     * const coords = new Coordinates('EPSG:4978', position.x, position.y, position.z);  // Geocentric system
     * const coordinates = coords.as('EPSG:4326');  // Geographic system
     *
     * @example
     * new Coordinates('EPSG:4326', longitude: 2.33, latitude: 48.24, altitude: 24999549).as('EPSG:4978'); // Geocentric system
     *
     * @example
     * new Coordinates('EPSG:4978', x: 20885167, y: 849862, z: 23385912).as('EPSG:4326'); // Geographic system
     */

  }, {
    key: "as",
    value: function as(crs) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new Coordinates(crs);

      if (this.crs == crs) {
        target.copy(this);
      } else {
        if (_Crs["default"].is4326(this.crs) && crs == 'EPSG:3857') {
          this.y = THREE.MathUtils.clamp(this.y, -89.999999, 89.999999);
        }

        target.setFromArray(proj4cache(this.crs, crs).forward([this.x, this.y, this.z]));
      }

      target.crs = crs;
      return target;
    }
  }]);
  return Coordinates;
}();

coord0 = new Coordinates('EPSG:4326', 0, 0, 0);
coord1 = new Coordinates('EPSG:4326', 0, 0, 0);
var _default = Coordinates;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Geographic/Crs.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Geographic/Crs.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _proj = _interopRequireDefault(__webpack_require__(/*! proj4 */ "./node_modules/proj4/lib/index.js"));

_proj["default"].defs('EPSG:4978', '+proj=geocent +datum=WGS84 +units=m +no_defs');

function isTms(crs) {
  return crs.startsWith('TMS');
}

function isEpsg(crs) {
  return crs.startsWith('EPSG');
}

function formatToTms(crs) {
  return isTms(crs) ? crs : "TMS:".concat(crs.match(/\d+/)[0]);
}

function formatToEPSG(crs) {
  return isEpsg(crs) ? crs : "EPSG:".concat(crs.match(/\d+/)[0]);
}

var UNIT = {
  DEGREE: 1,
  METER: 2
};

function is4326(crs) {
  return crs === 'EPSG:4326';
}

function isGeocentric(crs) {
  var projection = _proj["default"].defs(crs);

  return !projection ? false : projection.projName == 'geocent';
}

function _unitFromProj4Unit(projunit) {
  if (projunit === 'degrees') {
    return UNIT.DEGREE;
  } else if (projunit === 'm') {
    return UNIT.METER;
  } else {
    return undefined;
  }
}

function toUnit(crs) {
  switch (crs) {
    case 'EPSG:4326':
      return UNIT.DEGREE;

    case 'EPSG:4978':
      return UNIT.METER;

    default:
      {
        var p = _proj["default"].defs(formatToEPSG(crs));

        if (!p) {
          return undefined;
        }

        return _unitFromProj4Unit(p.units);
      }
  }
}

function toUnitWithError(crs) {
  var u = toUnit(crs);

  if (crs === undefined || u === undefined) {
    throw new Error("Invalid crs parameter value '".concat(crs, "'"));
  }

  return u;
}
/**
 * This module provides basic methods to manipulate a CRS (as a string).
 *
 * @module CRS
 */


var _default = {
  /**
   * Units that can be used for a CRS.
   *
   * @enum {number}
   */
  UNIT: UNIT,

  /**
   * Assert that the CRS is valid one.
   *
   * @param {string} crs - The CRS to validate.
   *
   * @throws {Error} if the CRS is not valid.
   */
  isValid: function isValid(crs) {
    toUnitWithError(crs);
  },

  /**
   * Assert that the CRS is geographic.
   *
   * @param {string} crs - The CRS to validate.
   * @return {boolean}
   * @throws {Error} if the CRS is not valid.
   */
  isGeographic: function isGeographic(crs) {
    return toUnitWithError(crs) == UNIT.DEGREE;
  },

  /**
   * Assert that the CRS is using metric units.
   *
   * @param {string} crs - The CRS to validate.
   * @return {boolean}
   * @throws {Error} if the CRS is not valid.
   */
  isMetricUnit: function isMetricUnit(crs) {
    return toUnit(crs) == UNIT.METER;
  },

  /**
   * Get the unit to use with the CRS.
   *
   * @param {string} crs - The CRS to get the unit from.
   * @return {number} Either `UNIT.METER`, `UNIT.DEGREE` or `undefined`.
   */
  toUnit: toUnit,

  /**
   * Is the CRS EPSG:4326 ?
   *
   * @param {string} crs - The CRS to test.
   * @return {boolean}
   */
  is4326: is4326,

  /**
   * Is the CRS geocentric ?
   * if crs isn't defined the method returns false.
   *
   * @param {string} crs - The CRS to test.
   * @return {boolean}
   */
  isGeocentric: isGeocentric,

  /**
   * Give a reasonnable epsilon to use with this CRS.
   *
   * @param {string} crs - The CRS to use.
   * @return {number} 0.01 if the CRS is EPSG:4326, 0.001 otherwise.
   */
  reasonnableEpsilon: function reasonnableEpsilon(crs) {
    if (is4326(crs)) {
      return 0.01;
    } else {
      return 0.001;
    }
  },

  /**
   * format crs to European Petroleum Survey Group notation : EPSG:XXXX.
   *
   * @param      {string}  crs     The crs to format
   * @return     {string}  formated crs
   */
  formatToEPSG: formatToEPSG,

  /**
   * format crs to tile matrix set notation : TMS:XXXX.
   *
   * @param      {string}  crs     The crs to format
   * @return     {string}  formated crs
   */
  formatToTms: formatToTms,
  isTms: isTms,
  isEpsg: isEpsg,
  tms_3857: 'TMS:3857',
  tms_4326: 'TMS:4326',

  /**
   * Define a proj4 projection as a string and reference.
   *
   * @param {string}  code    code is the projection's SRS code (only used internally by the Proj4js library)
   * @param {string}  proj4def is the Proj4 definition string for the projection to use
   * @return {undefined}
   */
  defs: function defs(code, proj4def) {
    return _proj["default"].defs(code, proj4def);
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Geographic/Extent.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Geographic/Extent.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.schemeTiles = exports.globalExtentTMS = exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ./Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ./Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

/**
 * Extent is a SIG-area (so 2D)
 * It can use explicit coordinates (e.g: lon/lat) or implicit (WMTS coordinates)
 */
var _dim = new THREE.Vector2();

var _dim2 = new THREE.Vector2();

var _countTiles = new THREE.Vector2();

var _box = new THREE.Box3();

var tmsCoord = new THREE.Vector2();
var dimensionTile = new THREE.Vector2();
var defaultScheme = new THREE.Vector2(2, 2);
var r = {
  row: 0,
  col: 0,
  invDiff: 0
};
var cNorthWest = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var cSouthWest = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var cNorthEast = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var southWest = new THREE.Vector3();
var northEast = new THREE.Vector3();

function _rowColfromParent(extent, zoom) {
  var diffLevel = extent.zoom - zoom;
  var diff = Math.pow(2, diffLevel);
  r.invDiff = 1 / diff;
  r.row = (extent.row - extent.row % diff) * r.invDiff;
  r.col = (extent.col - extent.col % diff) * r.invDiff;
  return r;
}

var _extent;

var _extent2;

var cardinals = new Array(8);

for (var i = cardinals.length - 1; i >= 0; i--) {
  cardinals[i] = new _Coordinates["default"]('EPSG:4326', 0, 0, 0, 0);
}

var _c = new _Coordinates["default"]('EPSG:4326', 0, 0);

var globalExtentTMS = new Map();
exports.globalExtentTMS = globalExtentTMS;
var schemeTiles = new Map();
exports.schemeTiles = schemeTiles;

function getInfoTms(crs) {
  var epsg = _Crs["default"].formatToEPSG(crs);

  var globalExtent = globalExtentTMS.get(epsg);
  var globalDimension = globalExtent.planarDimensions(_dim2);

  var tms = _Crs["default"].formatToTms(crs);

  var sTs = schemeTiles.get(tms) || schemeTiles.get('default'); // The isInverted parameter is to be set to the correct value, true or false
  // (default being false) if the computation of the coordinates needs to be
  // inverted to match the same scheme as OSM, Google Maps or other system.
  // See link below for more information
  // https://alastaira.wordpress.com/2011/07/06/converting-tms-tile-coordinates-to-googlebingosm-tile-coordinates/
  // in crs includes ':NI' => tms isn't inverted (NOT INVERTED)

  var isInverted = !tms.includes(':NI');
  return {
    epsg: epsg,
    globalExtent: globalExtent,
    globalDimension: globalDimension,
    sTs: sTs,
    isInverted: isInverted
  };
}

function getCountTiles(crs, zoom) {
  var sTs = schemeTiles.get(_Crs["default"].formatToTms(crs)) || schemeTiles.get('default');
  var count = Math.pow(2, zoom);

  _countTiles.set(count, count).multiply(sTs);

  return _countTiles;
}

var Extent = /*#__PURE__*/function () {
  /**
   * Extent is geographical bounding rectangle defined by 4 limits: west, east, south and north.
   * If crs is tiled projection (WMTS or TMS), the extent is defined by zoom, row and column.
   *
   * Warning, using geocentric projection isn't consistent with geographical extent.
   *
   * @param {String} crs projection of limit values.
   * @param {number|Array.<number>|Coordinates|Object} v0 west value, zoom
   * value, Array of values [west, east, south and north], Coordinates of
   * west-south corner or object {west, east, south and north}
   * @param {number|Coordinates} [v1] east value, row value or Coordinates of
   * east-north corner
   * @param {number} [v2] south value or column value
   * @param {number} [v3] north value
   */
  function Extent(crs, v0, v1, v2, v3) {
    (0, _classCallCheck2["default"])(this, Extent);

    if (_Crs["default"].isGeocentric(crs)) {
      throw new Error("".concat(crs, " is a geocentric projection, it doesn't make sense with a geographical extent"));
    }

    this.isExtent = true;
    this.crs = crs; // Scale/zoom

    this.zoom = 0;

    if (_Crs["default"].isTms(this.crs)) {
      this.row = 0;
      this.col = 0;
    } else {
      this.west = 0;
      this.east = 0;
      this.south = 0;
      this.north = 0;
    }

    this.set(v0, v1, v2, v3);
  }
  /**
   * Clone this extent
   * @return {Extent} cloned extent
   */


  (0, _createClass2["default"])(Extent, [{
    key: "clone",
    value: function clone() {
      if (_Crs["default"].isTms(this.crs)) {
        return new Extent(this.crs, this.zoom, this.row, this.col);
      } else {
        return new Extent(this.crs, this.west, this.east, this.south, this.north);
      }
    }
    /**
     * get tiled extents convering this extent
     *
     * @param      {string}  crs WMTS, TMS crs
     * @return     {Array<Extent>}   array of extents covering
     */

  }, {
    key: "tiledCovering",
    value: function tiledCovering(crs) {
      if (this.crs == 'EPSG:4326' && crs == _Crs["default"].tms_3857) {
        var extents_WMTS_PM = [];

        var extent = _extent.copy(this).as(_Crs["default"].formatToEPSG(crs), _extent2);

        var _getInfoTms = getInfoTms(_Crs["default"].formatToEPSG(crs)),
            globalExtent = _getInfoTms.globalExtent,
            globalDimension = _getInfoTms.globalDimension,
            sTs = _getInfoTms.sTs;

        extent.clampByExtent(globalExtent);
        extent.planarDimensions(dimensionTile);
        var zoom = this.zoom + 1 || Math.floor(Math.log2(Math.round(globalDimension.x / (dimensionTile.x * sTs.x))));
        var countTiles = getCountTiles(crs, zoom);
        var center = extent.center(_c);
        tmsCoord.x = center.x - globalExtent.west;
        tmsCoord.y = globalExtent.north - extent.north;
        tmsCoord.divide(globalDimension).multiply(countTiles).floor(); // ]N; N+1] => N

        var maxRow = Math.ceil((globalExtent.north - extent.south) / globalDimension.x * countTiles.y) - 1;

        for (var _r = maxRow; _r >= tmsCoord.y; _r--) {
          extents_WMTS_PM.push(new Extent(crs, zoom, _r, tmsCoord.x));
        }

        return extents_WMTS_PM;
      } else {
        var target = new Extent(crs, 0, 0, 0);

        var _getInfoTms2 = getInfoTms(this.crs),
            _globalExtent = _getInfoTms2.globalExtent,
            _globalDimension = _getInfoTms2.globalDimension,
            _sTs = _getInfoTms2.sTs,
            isInverted = _getInfoTms2.isInverted;

        var _center = this.center(_c);

        this.planarDimensions(dimensionTile); // Each level has 2^n * 2^n tiles...
        // ... so we count how many tiles of the same width as tile we can fit in the layer
        // ... 2^zoom = tilecount => zoom = log2(tilecount)

        var _zoom = Math.floor(Math.log2(Math.round(_globalDimension.x / (dimensionTile.x * _sTs.x))));

        var _countTiles2 = getCountTiles(crs, _zoom); // Now that we have computed zoom, we can deduce x and y (or row / column)


        tmsCoord.x = _center.x - _globalExtent.west;
        tmsCoord.y = isInverted ? _globalExtent.north - _center.y : _center.y - _globalExtent.south;
        tmsCoord.divide(_globalDimension).multiply(_countTiles2).floor();
        target.set(_zoom, tmsCoord.y, tmsCoord.x);
        return [target];
      }
    }
    /**
     * Convert Extent to the specified projection.
     * @param {string} crs the projection of destination.
     * @param {Extent} target copy the destination to target.
     * @return {Extent}
     */

  }, {
    key: "as",
    value: function as(crs, target) {
      _Crs["default"].isValid(crs);

      target = target || new Extent('EPSG:4326', [0, 0, 0, 0]);

      if (_Crs["default"].isTms(this.crs)) {
        var _getInfoTms3 = getInfoTms(this.crs),
            epsg = _getInfoTms3.epsg,
            globalExtent = _getInfoTms3.globalExtent,
            globalDimension = _getInfoTms3.globalDimension;

        var countTiles = getCountTiles(this.crs, this.zoom);
        dimensionTile.set(1, 1).divide(countTiles).multiply(globalDimension);
        target.west = globalExtent.west + (globalDimension.x - dimensionTile.x * (countTiles.x - this.col));
        target.east = target.west + dimensionTile.x;
        target.south = globalExtent.south + dimensionTile.y * (countTiles.y - this.row - 1);
        target.north = target.south + dimensionTile.y;
        target.crs = epsg;
        target.zoom = this.zoom;
        return crs == epsg ? target : target.as(crs, target);
      } else if (_Crs["default"].isEpsg(crs)) {
        if (this.crs != crs) {
          // Compute min/max in x/y by projecting 8 cardinal points,
          // and then taking the min/max of each coordinates.
          var center = this.center(_c);
          cardinals[0].setFromValues(this.west, this.north);
          cardinals[1].setFromValues(center.x, this.north);
          cardinals[2].setFromValues(this.east, this.north);
          cardinals[3].setFromValues(this.east, center.y);
          cardinals[4].setFromValues(this.east, this.south);
          cardinals[5].setFromValues(center.x, this.south);
          cardinals[6].setFromValues(this.west, this.south);
          cardinals[7].setFromValues(this.west, center.y);
          target.set(Infinity, -Infinity, Infinity, -Infinity); // loop over the coordinates

          for (var _i = 0; _i < cardinals.length; _i++) {
            // convert the coordinate.
            cardinals[_i].crs = this.crs;

            cardinals[_i].as(crs, _c);

            target.north = Math.max(target.north, _c.y);
            target.south = Math.min(target.south, _c.y);
            target.east = Math.max(target.east, _c.x);
            target.west = Math.min(target.west, _c.x);
          }

          target.zoom = this.zoom;
          target.crs = crs;
          return target;
        }

        target.crs = crs;
        target.zoom = this.zoom;
        target.set(this.west, this.east, this.south, this.north);
        return target;
      }
    }
    /**
     * Return the center of Extent
     * @param {Coordinates} target copy the center to the target.
     * @return {Coordinates}
     */

  }, {
    key: "center",
    value: function center() {
      var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : new _Coordinates["default"](this.crs);

      if (_Crs["default"].isTms(this.crs)) {
        throw new Error('Invalid operation for WMTS bbox');
      }

      this.planarDimensions(_dim);
      target.crs = this.crs;
      target.setFromValues(this.west + _dim.x * 0.5, this.south + _dim.y * 0.5);
      return target;
    }
    /**
    * Returns the dimension of the extent, in a `THREE.Vector2`.
    *
    * @param {THREE.Vector2} [target] - The target to assign the result in.
    *
    * @return {THREE.Vector2}
    */

  }, {
    key: "dimensions",
    value: function dimensions() {
      var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : new THREE.Vector2();
      console.warn('Extent.dimensions is deprecated, use planarDimensions, geodeticDimensions or spatialEuclideanDimensions');
      target.x = Math.abs(this.east - this.west);
      target.y = Math.abs(this.north - this.south);
      return target;
    }
    /**
     *  Planar dimensions are two planar distances west/east and south/north.
     *  Planar distance straight-line Euclidean distance calculated in a 2D Cartesian coordinate system.
     *
     * @param      {THREE.Vector2}  [target=new THREE.Vector2()]  The target
     * @return     {THREE.Vector2}  Planar dimensions
     */

  }, {
    key: "planarDimensions",
    value: function planarDimensions() {
      var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : new THREE.Vector2();
      // Calculte the dimensions for x and y
      return target.set(Math.abs(this.east - this.west), Math.abs(this.north - this.south));
    }
    /**
     *  Geodetic dimensions are two planar distances west/east and south/north.
     *  Geodetic distance is calculated in an ellispoid space as the distance
     *  across the curved surface of the world.
     *
     * @param      {THREE.Vector2}  [target=new THREE.Vector2()]  The target
     * @return     {THREE.Vector2}  geodetic dimensions
     */

  }, {
    key: "geodeticDimensions",
    value: function geodeticDimensions() {
      var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : new THREE.Vector2();
      // set 3 corners extent
      cNorthWest.crs = this.crs;
      cSouthWest.crs = this.crs;
      cNorthEast.crs = this.crs;
      cNorthWest.setFromValues(this.west, this.north, 0);
      cSouthWest.setFromValues(this.west, this.south, 0);
      cNorthEast.setFromValues(this.east, this.north, 0); // calcul geodetic distance northWest/northEast and northWest/southWest

      return target.set(cNorthWest.geodeticDistanceTo(cNorthEast), cNorthWest.geodeticDistanceTo(cSouthWest));
    }
    /**
     *  Spatial euclidean dimensions are two spatial euclidean distances between west/east corner and south/north corner.
     *  Spatial euclidean distance chord is calculated in a ellispoid space.
     *
     * @param      {THREE.Vector2}  [target=new THREE.Vector2()]  The target
     * @return     {THREE.Vector2}  spatial euclidean dimensions
     */

  }, {
    key: "spatialEuclideanDimensions",
    value: function spatialEuclideanDimensions() {
      var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : new THREE.Vector2();
      // set 3 corners extent
      cNorthWest.crs = this.crs;
      cSouthWest.crs = this.crs;
      cNorthEast.crs = this.crs;
      cNorthWest.setFromValues(this.west, this.north, 0);
      cSouthWest.setFromValues(this.west, this.south, 0);
      cNorthEast.setFromValues(this.east, this.north, 0); // calcul chord distance northWest/northEast and northWest/southWest

      return target.set(cNorthWest.spatialEuclideanDistanceTo(cNorthEast), cNorthWest.spatialEuclideanDistanceTo(cSouthWest));
    }
    /**
     * Return true if `coord` is inside the bounding box.
     *
     * @param {Coordinates} coord
     * @param {number} [epsilon=0] - to take into account when comparing to the
     * point.
     *
     * @return {boolean}
     */

  }, {
    key: "isPointInside",
    value: function isPointInside(coord) {
      var epsilon = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;

      if (this.crs == coord.crs) {
        _c.copy(coord);
      } else {
        coord.as(this.crs, _c);
      } // TODO this ignores altitude


      return _c.x <= this.east + epsilon && _c.x >= this.west - epsilon && _c.y <= this.north + epsilon && _c.y >= this.south - epsilon;
    }
    /**
     * Return true if `extent` is inside this extent.
     *
     * @param {Extent} extent the extent to check
     * @param {number} epsilon to take into account when comparing to the
     * point.
     *
     * @return {boolean}
     */

  }, {
    key: "isInside",
    value: function isInside(extent, epsilon) {
      if (_Crs["default"].isTms(this.crs)) {
        if (this.zoom == extent.zoom) {
          return this.row == extent.row && this.col == extent.col;
        } else if (this.zoom < extent.zoom) {
          return false;
        } else {
          _rowColfromParent(this, extent.zoom);

          return r.row == extent.row && r.col == extent.col;
        }
      } else {
        extent.as(this.crs, _extent);
        epsilon = epsilon == undefined ? _Crs["default"].reasonnableEpsilon(this.crs) : epsilon;
        return this.east - _extent.east <= epsilon && _extent.west - this.west <= epsilon && this.north - _extent.north <= epsilon && _extent.south - this.south <= epsilon;
      }
    }
    /**
     * Return the translation and scale to transform this extent to input extent.
     *
     * @param {Extent} extent input extent
     * @param {THREE.Vector4} target copy the result to target.
     * @return {THREE.Vector4} {x: translation on west-east, y: translation on south-north, z: scale on west-east, w: scale on south-north}
     */

  }, {
    key: "offsetToParent",
    value: function offsetToParent(extent) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Vector4();

      if (this.crs != extent.crs) {
        throw new Error('unsupported mix');
      }

      if (_Crs["default"].isTms(this.crs)) {
        _rowColfromParent(this, extent.zoom);

        return target.set(this.col * r.invDiff - r.col, this.row * r.invDiff - r.row, r.invDiff, r.invDiff);
      }

      extent.planarDimensions(_dim);
      this.planarDimensions(_dim2);
      var originX = (this.west - extent.west) / _dim.x;
      var originY = (extent.north - this.north) / _dim.y;
      var scaleX = _dim2.x / _dim.x;
      var scaleY = _dim2.y / _dim.y;
      return target.set(originX, originY, scaleX, scaleY);
    }
    /**
     * Return parent tiled extent with input level
     *
     * @param {number} levelParent level of parent.
     * @return {Extent}
     */

  }, {
    key: "tiledExtentParent",
    value: function tiledExtentParent(levelParent) {
      if (levelParent && levelParent < this.zoom) {
        _rowColfromParent(this, levelParent);

        return new Extent(this.crs, levelParent, r.row, r.col);
      } else {
        return this;
      }
    }
    /**
     * Return true if this bounding box intersect with the bouding box parameter
     * @param {Extent} extent
     * @returns {Boolean}
     */

  }, {
    key: "intersectsExtent",
    value: function intersectsExtent(extent) {
      // TODO don't work when is on limit
      var other = extent.crs == this.crs ? extent : extent.as(this.crs, _extent);
      return !(this.west >= other.east || this.east <= other.west || this.south >= other.north || this.north <= other.south);
    }
    /**
     * Return the intersection of this extent with another one
     * @param {Extent} extent
     * @returns {Boolean}
     */

  }, {
    key: "intersect",
    value: function intersect(extent) {
      if (!this.intersectsExtent(extent)) {
        return new Extent(this.crs, 0, 0, 0, 0);
      }

      if (extent.crs != this.crs) {
        extent = extent.as(this.crs, _extent);
      }

      return new Extent(this.crs, Math.max(this.west, extent.west), Math.min(this.east, extent.east), Math.max(this.south, extent.south), Math.min(this.north, extent.north));
    }
    /**
     * Set west, east, south and north values.
     * Or if tiled extent, set zoom, row and column values
     *
     * @param {number|Array.<number>|Coordinates|Object|Extent} v0 west value,
     * zoom value, Array of values [west, east, south and north], Extent of same
     * type (tiled or not), Coordinates of west-south corner or object {west,
     * east, south and north}
     * @param {number|Coordinates} [v1] east value, row value or Coordinates of
     * east-north corner
     * @param {number} [v2] south value or column value
     * @param {number} [v3] north value
     *
     * @return {Extent}
     */

  }, {
    key: "set",
    value: function set(v0, v1, v2, v3) {
      if (v0 == undefined) {
        throw new Error('No values to set in the extent');
      }

      if (v0.isExtent) {
        if (_Crs["default"].isTms(v0.crs)) {
          v1 = v0.row;
          v2 = v0.col;
          v0 = v0.zoom;
        } else {
          v1 = v0.east;
          v2 = v0.south;
          v3 = v0.north;
          v0 = v0.west;
        }
      }

      if (_Crs["default"].isTms(this.crs)) {
        this.zoom = v0;
        this.row = v1;
        this.col = v2;
      } else if (v0.isCoordinates) {
        // seem never used
        this.west = v0.x;
        this.east = v1.x;
        this.south = v0.y;
        this.north = v1.y;
      } else if (v0.west !== undefined) {
        this.west = v0.west;
        this.east = v0.east;
        this.south = v0.south;
        this.north = v0.north;
      } else if (v0.length == 4) {
        this.west = v0[0];
        this.east = v0[1];
        this.south = v0[2];
        this.north = v0[3];
      } else if (v3 !== undefined) {
        this.west = v0;
        this.east = v1;
        this.south = v2;
        this.north = v3;
      }

      return this;
    }
    /**
     * Copy to this extent to input extent.
     * @param {Extent} extent
     * @return {Extent} copied extent
     */

  }, {
    key: "copy",
    value: function copy(extent) {
      this.crs = extent.crs;
      return this.set(extent);
    }
    /**
     * Union this extent with the input extent.
     * @param {Extent} extent the extent to union.
     */

  }, {
    key: "union",
    value: function union(extent) {
      if (extent.crs != this.crs) {
        throw new Error('unsupported union between 2 diff crs');
      }

      if (this.west === Infinity) {
        this.copy(extent);
      } else {
        var west = extent.west;

        if (west < this.west) {
          this.west = west;
        }

        var east = extent.east;

        if (east > this.east) {
          this.east = east;
        }

        var south = extent.south;

        if (south < this.south) {
          this.south = south;
        }

        var north = extent.north;

        if (north > this.north) {
          this.north = north;
        }
      }
    }
    /**
     * expandByCoordinates perfoms the minimal extension
     * for the coordinates to belong to this Extent object
     * @param {Coordinates} coordinates  The coordinates to belong
     */

  }, {
    key: "expandByCoordinates",
    value: function expandByCoordinates(coordinates) {
      var coords = coordinates.crs == this.crs ? coordinates : coordinates.as(this.crs, _c);
      this.expandByValuesCoordinates(coords.x, coords.y);
    }
    /**
    * expandByValuesCoordinates perfoms the minimal extension
    * for the coordinates values to belong to this Extent object
    * @param {number} we  The coordinate on west-east
    * @param {number} sn  The coordinate on south-north
    *
    */

  }, {
    key: "expandByValuesCoordinates",
    value: function expandByValuesCoordinates(we, sn) {
      if (we < this.west) {
        this.west = we;
      }

      if (we > this.east) {
        this.east = we;
      }

      if (sn < this.south) {
        this.south = sn;
      }

      if (sn > this.north) {
        this.north = sn;
      }
    }
    /**
     * Instance Extent with THREE.Box3.
     *
     * If crs is a geocentric projection, the `box3.min` and `box3.max`
     * should be the geocentric coordinates of `min` and `max` of a `box3`
     * in local tangent plane.
     *
     * @param {string} crs Projection of extent to instancied.
     * @param {THREE.Box3} box
     * @return {Extent}
     */

  }, {
    key: "toString",
    value:
    /**
     * Return values of extent in string, separated by the separator input.
     * @param {string} separator
     * @return {string}
     */
    function toString() {
      var separator = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';

      if (_Crs["default"].isTms(this.crs)) {
        return "".concat(this.zoom).concat(separator).concat(this.row).concat(separator).concat(this.col);
      } else {
        return "".concat(this.east).concat(separator).concat(this.north).concat(separator).concat(this.west).concat(separator).concat(this.south);
      }
    }
    /**
     * Subdivide equally an extent from its center to return four extents:
     * north-west, north-east, south-west and south-east.
     *
     * @returns {Extent[]} An array containing the four sections of the extent. The
     * order of the sections is [NW, NE, SW, SE].
     */

  }, {
    key: "subdivision",
    value: function subdivision() {
      return this.subdivisionByScheme();
    }
    /**
     * subdivise extent by scheme.x on west-east and scheme.y on south-north.
     *
     * @param      {Vector2}  [scheme=Vector2(2,2)]  The scheme to subdivise.
     * @return     {Array<Extent>}   subdivised extents.
     */

  }, {
    key: "subdivisionByScheme",
    value: function subdivisionByScheme() {
      var scheme = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : defaultScheme;
      var subdivisedExtents = [];
      var dimSub = this.planarDimensions(_dim).divide(scheme);

      for (var x = scheme.x - 1; x >= 0; x--) {
        for (var y = scheme.y - 1; y >= 0; y--) {
          var west = this.west + x * dimSub.x;
          var south = this.south + y * dimSub.y;
          subdivisedExtents.push(new Extent(this.crs, west, west + dimSub.x, south, south + dimSub.y));
        }
      }

      return subdivisedExtents;
    }
    /**
     * Multiplies all extent `coordinates` (with an implicit 1 in the 4th dimension) and `matrix`.
     *
     * @param      {THREE.Matrix4}  matrix  The matrix
     * @return     {Extent}  return this extent instance.
     */

  }, {
    key: "applyMatrix4",
    value: function applyMatrix4(matrix) {
      if (!_Crs["default"].isTms(this.crs)) {
        southWest.set(this.west, this.south, 0).applyMatrix4(matrix);
        northEast.set(this.east, this.north, 0).applyMatrix4(matrix);
        this.west = southWest.x;
        this.east = northEast.x;
        this.south = southWest.y;
        this.north = northEast.y;

        if (this.west > this.east) {
          var temp = this.west;
          this.west = this.east;
          this.east = temp;
        }

        if (this.south > this.north) {
          var _temp = this.south;
          this.south = this.north;
          this.north = _temp;
        }

        return this;
      }
    }
    /**
     * clamp south and north values
     *
     * @param      {number}  [south=this.south]  The min south
     * @param      {number}  [north=this.north]  The max north
     * @return     {Extent}  this extent
     */

  }, {
    key: "clampSouthNorth",
    value: function clampSouthNorth() {
      var south = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.south;
      var north = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.north;
      this.south = Math.max(this.south, south);
      this.north = Math.min(this.north, north);
      return this;
    }
    /**
     * clamp west and east values
     *
     * @param      {number}  [west=this.west]  The min west
     * @param      {number}  [east=this.east]  The max east
     * @return     {Extent}  this extent
     */

  }, {
    key: "clampWestEast",
    value: function clampWestEast() {
      var west = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.west;
      var east = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.east;
      this.west = Math.max(this.west, west);
      this.east = Math.min(this.east, east);
      return this;
    }
    /**
     * clamp this extent by passed extent
     *
     * @param      {Extent}  extent  The maximum extent.
     * @return     {Extent}  this extent.
     */

  }, {
    key: "clampByExtent",
    value: function clampByExtent(extent) {
      this.clampSouthNorth(extent.south, extent.north);
      return this.clampWestEast(extent.west, extent.east);
    }
  }], [{
    key: "fromBox3",
    value: function fromBox3(crs, box) {
      if (_Crs["default"].isGeocentric(crs)) {
        // if geocentric reproject box on 'EPSG:4326'
        crs = 'EPSG:4326';
        box = _box.copy(box);
        cSouthWest.crs = crs;
        cSouthWest.setFromVector3(box.min).as(crs, cSouthWest).toVector3(box.min);
        cNorthEast.crs = crs;
        cNorthEast.setFromVector3(box.max).as(crs, cNorthEast).toVector3(box.max);
      }

      return new Extent(crs, {
        west: box.min.x,
        east: box.max.x,
        south: box.min.y,
        north: box.max.y
      });
    }
  }]);
  return Extent;
}();

_extent = new Extent('EPSG:4326', [0, 0, 0, 0]);
_extent2 = new Extent('EPSG:4326', [0, 0, 0, 0]);
globalExtentTMS.set('EPSG:4326', new Extent('EPSG:4326', -180, 180, -90, 90)); // Compute global extent of TMS in EPSG:3857
// It's square whose a side is between -180° to 180°.
// So, west extent, it's 180 convert in EPSG:3857

var extent3857 = globalExtentTMS.get('EPSG:4326').as('EPSG:3857');
extent3857.clampSouthNorth(extent3857.west, extent3857.east);
globalExtentTMS.set('EPSG:3857', extent3857);
schemeTiles.set('default', new THREE.Vector2(1, 1));
schemeTiles.set(_Crs["default"].tms_3857, schemeTiles.get('default'));
schemeTiles.set(_Crs["default"].tms_4326, new THREE.Vector2(2, 1));
var _default = Extent;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Geographic/GeoidGrid.js":
/*!**************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Geographic/GeoidGrid.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ./Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ./Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var coord = new _Coordinates["default"]('EPSG:4326');
var indexes = new THREE.Vector2();

function biLinearInterpolation(indexes, getData) {
  var j = Math.floor(indexes.x);
  var i = Math.floor(indexes.y);
  var u = indexes.x - j;
  var v = indexes.y - i;
  return (1 - u) * ((1 - v) * getData(i, j) + v * getData(i + 1, j)) + u * ((1 - v) * getData(i, j + 1) + v * getData(i + 1, j + 1));
}
/**
 * An instance of `GeoidGrid` allows accessing some geoid height grid data from geographic instances (like some
 * `{@link Coordinates}`). The geoid height grid data must contain geoid height values for a set of geographic points
 * regularly dispatched on a planar surface.
 *
 * @property    {Extent}        extent      The geographic extent of the geoid height grid data.
 * @property    {THREE.Vector2} step        The distance between two consecutive points of the geoid height grid. The
                                            * `x` value stands for the distance along the West-East direction, and the
                                            * `y` value stands for the distance along the South-North direction.
 * @property    {THREE.Vector2} dimensions  The planar dimensions of the geoid height grid data extent.
 * @property    {THREE.Vector2} dataSize    The number of values in the gridded data along the West-East direction (`x`
                                            * axis) and the South-North direction (`y` axis).
 *
 * @example
 * // Create a set of gridded data.
 * const data = [
 *     [1, 2, 3],
 *     [2, 3, 4],
 *     [3, 4, 5],
 * ];
 * // This set of data presents the following spatial distribution of geoid heights values :
 * //
 * //    Latitudes  ^
 * //               |
 * //         41.0  |   3  4  5
 * //         40.5  |   2  3  4
 * //         40.0  |   1  2  3
 * //               |------------->
 * //                   1  2  3     Longitudes
 *
 * // Create a GeoidGrid allowing to access the gridded data.
 * const geoidGrid = new GeoidGrid(
 *     new Extent('EPSG:4326', 1, 3, 40, 41),
 *     new THREE.Vector2(1, 0.5),
 *     (verticalIndex, horizontalIndex) => data[verticalIndex][horizontalIndex],
 * );
 *
 * // Access a value of geoid height at some geographic coordinates.
 * // The value is interpolated from the gridded data.
 * const value = geoidGrid.getHeightAtCoordinates(
 *     new Coordinates('EPSG:4326', 1.5, 40.25)
 * );
 * // This should return 2.0, which is the result from the bi-linear
 * // interpolation at the center of the `[[1, 2], [2, 3]]` subsection
 * // of the grid data.
 */


var GeoidGrid = /*#__PURE__*/function () {
  /**
   * @param   {Extent}        extent      The geographic extent of the geoid height grid data.
   * @param   {THREE.Vector2} step        The distance between two consecutive points of the geoid height grid. The
                                          * `x` value stands for the distance along the West-East direction, and the
                                          * `y` value stands for the distance along the South-North direction.
   * @param   {function}      getData     A method that allows reading a value in the geoid height grid from its
                                          * vertical and horizontal indexes. The lower an index, the lower the
                                          * coordinate on the corresponding axis - 0 being the index of the minimal
                                          * coordinate of the gridded data on a given axis. In other words :
                                          * - `getData(0, 0)` must return the geoid height value at the SOUTH-WEST
                                          *   corner of your data extent.
                                          * - `getData(0, j)` must return a geoid height on the southern limit of your
                                          *   data extent.
                                          * - `getData(i, 0)` must return a geoid height on the western limit of your
                                          *   data extent.
                                          * - if your gridded data has dimensions (rowNumber, colNumber),
                                          *   `getData(rowNumber - 1, colNumber - 1)` must return the geoid height at
                                          *   the NORTH-EAST corner of your data extent.
   */
  function GeoidGrid(extent, step, getData) {
    (0, _classCallCheck2["default"])(this, GeoidGrid);

    _Crs["default"].isGeographic(extent.crs);

    this.extent = extent;
    this.step = new THREE.Vector2(step.x, step.y || step.x);
    this.dimensions = this.extent.planarDimensions();
    this.dataSize = new THREE.Vector2().addVectors(this.step, this.dimensions).divide(this.step).round();
    this.getData = getData;
  }
  /**
   * Get the value of the geoid height at given geographic `{@link Coordinates}`. The geoid height value is
   * bi-linearly interpolated from the gridded data accessed by the `GeoidGrid` instance.
   *
   * @param   {Coordinates}   coordinates     Geographic coordinates to get the geoid height value at.
   *
   * @returns {number}    The geoid height value at the given `{@link Coordinates}`, bi-interpolated from the gridded
                          * data accessed by the `GeoidGrid` instance.
   */


  (0, _createClass2["default"])(GeoidGrid, [{
    key: "getHeightAtCoordinates",
    value: function getHeightAtCoordinates(coordinates) {
      coordinates.as(this.extent.crs, coord);
      indexes.set((this.dataSize.x - 1) * (coord.x - this.extent.west) / this.dimensions.x, (this.dataSize.y - 1) * (coord.y - this.extent.south) / this.dimensions.y); // TODO : add management for global GeoidGrid.

      if (indexes.x < 0 || indexes.x >= this.dataSize.x - 1 || indexes.y < 0 || indexes.y >= this.dataSize.y - 1) {
        return 0;
      }

      return biLinearInterpolation(indexes, this.getData);
    }
  }]);
  return GeoidGrid;
}();

var _default = GeoidGrid;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Label.js":
/*!***********************************************!*\
  !*** ./node_modules/itowns/lib/Core/Label.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _DEMUtils = _interopRequireDefault(__webpack_require__(/*! ../Utils/DEMUtils */ "./node_modules/itowns/lib/Utils/DEMUtils.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ./Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var coord = new _Coordinates["default"]('EPSG:4326');
var rect; // set it once

var STYLE_TRANSFORM = '';

if (document.documentElement.style.transform !== undefined) {
  STYLE_TRANSFORM = 'transform';
} else if (document.documentElement.style.webkitTransform !== undefined) {
  STYLE_TRANSFORM = 'webkitTransform';
} else if (document.documentElement.style.mozTransform !== undefined) {
  STYLE_TRANSFORM = 'mozTransform';
} else if (document.documentElement.style.oTransform !== undefined) {
  STYLE_TRANSFORM = 'oTransform';
} else {
  STYLE_TRANSFORM = 'transform';
}
/**
 * An object that handles the display of a text and/or an icon, linked to a 3D
 * position. The content of the `Label` is managed through a DOM object, in a
 * `<div>` handled by the `Label2DRenderer`.
 *
 * @property {boolean} isLabel - Used to checkout whether this object is a
 * Label. Default is true. You should not change this, as it is used internally
 * for optimisation.
 * @property {Element} content - The DOM object that contains the content of the
 * label. The style and the position are applied on this object. All labels
 * contain the `itowns-label` class, as well as a specific class related to the
 * layer linked to it: `itowns-label-[layer-id]` (replace `[layer-id]` by the
 * correct string).
 * @property {THREE.Vector3} position - The position in the 3D world of the
 * label.
 * @property {number} padding - sets the padding area on all four sides of an element at once.
 * @property {Coordinates} coordinates - The coordinates of the label.
 * @property {number} order - Order of the label that will be read from the
 * style. It helps sorting and prioritizing a Label during render.
 */


var Label = /*#__PURE__*/function (_THREE$Object3D) {
  (0, _inherits2["default"])(Label, _THREE$Object3D);

  var _super = _createSuper(Label);

  /**
   * @param {Element|string} content - The content; can be a
   * string, with or without HTML tags in it, or it can be an Element.
   * @param {Coordinates} coordinates - The world coordinates, where to place
   * the Label.
   * @param {Style} style - The style to apply to the content. Once the style
   * is applied, it cannot be changed directly. However, if it really needed,
   * it can be accessed through `label.content.style`, but it is highly
   * discouraged to do so.
   * @param {Object} [sprites] the sprites.
   */
  function Label() {
    var _this;

    var content = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
    var coordinates = arguments.length > 1 ? arguments[1] : undefined;
    var style = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var sprites = arguments.length > 3 ? arguments[3] : undefined;
    (0, _classCallCheck2["default"])(this, Label);

    if (coordinates == undefined) {
      throw new Error('coordinates are mandatory to add a Label');
    }

    _this = _super.call(this);
    var _visible = _this.visible; // can't do an ES6 setter/getter here

    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'visible', {
      set: function set(v) {
        if (v != _visible) {
          // avoid changing the style
          _visible = v;
          this.content.style.display = v ? 'block' : 'none'; // TODO: add smooth transition for fade in/out
        }
      },
      get: function get() {
        return _visible;
      }
    });
    _this.isLabel = true;
    _this.coordinates = coordinates;
    _this.projectedPosition = {
      x: 0,
      y: 0
    };
    _this.boundaries = {
      left: 0,
      right: 0,
      top: 0,
      bottom: 0
    };

    if (typeof content === 'string') {
      _this.content = document.createElement('div');
      _this.content.textContent = content;
    } else {
      _this.content = content.cloneNode(true);
    }

    _this.content.classList.add('itowns-label');

    _this.content.style.userSelect = 'none';
    _this.content.style.position = 'absolute';
    _this.baseContent = content;

    if (style.isStyle) {
      _this.anchor = style.getTextAnchorPosition();
      _this.styleOffset = style.text.offset;

      if (typeof content === 'string') {
        if (style.text.haloWidth > 0) {
          _this.content.classList.add('itowns-stroke-single');
        }

        style.applyToHTML(_this.content, sprites);
      }
    } else {
      _this.anchor = [0, 0];
      _this.styleOffset = [0, 0];
    }

    _this.icon = _this.content.getElementsByClassName('itowns-icon')[0];
    _this.iconOffset = {
      left: 0,
      right: 0,
      top: 0,
      bottom: 0
    };
    _this.zoom = {
      min: style.zoom && style.zoom.min != undefined ? style.zoom.min : 2,
      max: style.zoom && style.zoom.max != undefined ? style.zoom.max : 24
    };
    _this.order = style.order || 0; // Padding value, to avoid labels being too close to each other.

    _this.padding = 2;
    return _this;
  }
  /**
   * Moves a label on the screen, using screen coordinates. It updates the
   * boundaries as it moves it.
   *
   * @param {number} x - X coordinates in pixels, from left.
   * @param {number} y - Y coordinates in pixels, from top.
   */


  (0, _createClass2["default"])(Label, [{
    key: "updateProjectedPosition",
    value: function updateProjectedPosition(x, y) {
      var X = Math.round(x);
      var Y = Math.round(y);

      if (X != this.projectedPosition.x || Y != this.projectedPosition.y) {
        this.projectedPosition.x = X;
        this.projectedPosition.y = Y;
        this.boundaries.left = x + this.offset.left - this.padding;
        this.boundaries.right = x + this.offset.right + this.padding;
        this.boundaries.top = y + this.offset.top - this.padding;
        this.boundaries.bottom = y + this.offset.bottom + this.padding; // The boundaries of the label are the union of the boundaries of the text
        // and the boundaries of the icon, if it exists.
        // Checking if this.icon is not only zeros is mandatory, to prevent case
        // when a boundary is set to x or y coordinate

        if (this.iconOffset.left !== 0 || this.iconOffset.right !== 0 || this.iconOffset.top !== 0 || this.iconOffset.bottom !== 0) {
          this.boundaries.left = Math.min(this.boundaries.left, x + this.iconOffset.left);
          this.boundaries.right = Math.max(this.boundaries.right, x + this.iconOffset.right);
          this.boundaries.top = Math.min(this.boundaries.top, y + this.iconOffset.top);
          this.boundaries.bottom = Math.max(this.boundaries.bottom, y + this.iconOffset.bottom);
        }
      }
    }
  }, {
    key: "updateCSSPosition",
    value: function updateCSSPosition() {
      // translate all content according to its given anchor
      this.content.style[STYLE_TRANSFORM] = "translate(".concat(this.projectedPosition.x + this.offset.left, "px, ").concat(this.projectedPosition.y + this.offset.top, "px)"); // translate possible icon inside content to cancel anchoring on it, so that it can later be positioned
      // according to its own anchor

      if (this.icon) {
        this.icon.style[STYLE_TRANSFORM] = "translate(".concat(-this.offset.left, "px, ").concat(-this.offset.top, "px)");
      }
    }
    /**
     * Updates the screen dimensions of the label, using
     * `getBoundingClientRect`.  It updates `width` and `height` property of the
     * label, and the boundaries.
     */

  }, {
    key: "initDimensions",
    value: function initDimensions() {
      if (!this.offset) {
        rect = this.content.getBoundingClientRect();
        var width = Math.round(rect.width);
        var height = Math.round(rect.height);
        this.offset = {
          left: width * this.anchor[0] + this.styleOffset[0],
          top: height * this.anchor[1] + this.styleOffset[1]
        };
        this.offset.right = this.offset.left + width;
        this.offset.bottom = this.offset.top + height;

        if (this.icon) {
          rect = this.icon.getBoundingClientRect();
          this.iconOffset = {
            left: Math.floor(rect.x),
            top: Math.floor(rect.y),
            right: Math.ceil(rect.x + rect.width),
            bottom: Math.ceil(rect.y + rect.height)
          };
        }
      }
    }
  }, {
    key: "update3dPosition",
    value: function update3dPosition(crs) {
      this.coordinates.as(crs, coord);
      coord.toVector3(this.position);
      this.parent.worldToLocal(this.position);
      this.updateMatrixWorld();
    }
  }, {
    key: "updateElevationFromLayer",
    value: function updateElevationFromLayer(layer) {
      var elevation = Math.max(0, _DEMUtils["default"].getElevationValueAt(layer, this.coordinates, _DEMUtils["default"].FAST_READ_Z));

      if (elevation && elevation != this.coordinates.z) {
        this.coordinates.z = elevation;
        this.updateHorizonCullingPoint();
        return true;
      }
    }
  }, {
    key: "updateHorizonCullingPoint",
    value: function updateHorizonCullingPoint() {
      if (this.horizonCullingPoint) {
        this.getWorldPosition(this.horizonCullingPoint);
      }
    }
  }]);
  return Label;
}(THREE.Object3D);

var _default = Label;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/MainLoop.js":
/*!**************************************************!*\
  !*** ./node_modules/itowns/lib/Core/MainLoop.js ***!
  \**************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.RENDERING_SCHEDULED = exports.RENDERING_PAUSED = exports.MAIN_LOOP_EVENTS = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classPrivateFieldSet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldSet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

var _three = __webpack_require__(/*! three */ "./node_modules/three/build/three.cjs");

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _classPrivateMethodInitSpec(obj, privateSet) { _checkPrivateRedeclaration(obj, privateSet); privateSet.add(obj); }

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

function _classPrivateMethodGet(receiver, privateSet, fn) { if (!privateSet.has(receiver)) { throw new TypeError("attempted to get private field on non-instance"); } return fn; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

var RENDERING_PAUSED = 0;
exports.RENDERING_PAUSED = RENDERING_PAUSED;
var RENDERING_SCHEDULED = 1;
/**
 * MainLoop's update events list that are fired using
 * {@link View#execFrameRequesters}.
 *
 * @property UPDATE_START {string} fired at the start of the update
 * @property BEFORE_CAMERA_UPDATE {string} fired before the camera update
 * @property AFTER_CAMERA_UPDATE {string} fired after the camera update
 * @property BEFORE_LAYER_UPDATE {string} fired before the layer update
 * @property AFTER_LAYER_UPDATE {string} fired after the layer update
 * @property BEFORE_RENDER {string} fired before the render
 * @property AFTER_RENDER {string} fired after the render
 * @property UPDATE_END {string} fired at the end of the update
 */

exports.RENDERING_SCHEDULED = RENDERING_SCHEDULED;
var MAIN_LOOP_EVENTS = {
  UPDATE_START: 'update_start',
  BEFORE_CAMERA_UPDATE: 'before_camera_update',
  AFTER_CAMERA_UPDATE: 'after_camera_update',
  BEFORE_LAYER_UPDATE: 'before_layer_update',
  AFTER_LAYER_UPDATE: 'after_layer_update',
  BEFORE_RENDER: 'before_render',
  AFTER_RENDER: 'after_render',
  UPDATE_END: 'update_end'
};
exports.MAIN_LOOP_EVENTS = MAIN_LOOP_EVENTS;

function updateElements(context, geometryLayer, elements) {
  if (!elements) {
    return;
  }

  var _iterator = _createForOfIteratorHelper(elements),
      _step;

  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var element = _step.value;
      // update element
      // TODO find a way to notify attachedLayers when geometryLayer deletes some elements
      // and then update Debug.js:addGeometryLayerDebugFeatures
      var newElementsToUpdate = geometryLayer.update(context, geometryLayer, element);
      var sub = geometryLayer.getObjectToUpdateForAttachedLayers(element);

      if (sub) {
        if (sub.element) {
          // update attached layers
          var _iterator2 = _createForOfIteratorHelper(geometryLayer.attachedLayers),
              _step2;

          try {
            for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
              var attachedLayer = _step2.value;

              if (attachedLayer.ready) {
                attachedLayer.update(context, attachedLayer, sub.element, sub.parent);
                attachedLayer.cache.flush();
              }
            }
          } catch (err) {
            _iterator2.e(err);
          } finally {
            _iterator2.f();
          }
        } else if (sub.elements) {
          for (var i = 0; i < sub.elements.length; i++) {
            if (!sub.elements[i].isObject3D) {
              throw new Error("\n                            Invalid object for attached layer to update.\n                            Must be a THREE.Object and have a THREE.Material");
            } // update attached layers


            var _iterator3 = _createForOfIteratorHelper(geometryLayer.attachedLayers),
                _step3;

            try {
              for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
                var _attachedLayer = _step3.value;

                if (_attachedLayer.ready) {
                  _attachedLayer.update(context, _attachedLayer, sub.elements[i], sub.parent);

                  _attachedLayer.cache.flush();
                }
              }
            } catch (err) {
              _iterator3.e(err);
            } finally {
              _iterator3.f();
            }
          }
        }
      }

      updateElements(context, geometryLayer, newElementsToUpdate);
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
}

function filterChangeSources(updateSources, geometryLayer) {
  var fullUpdate = false;
  var filtered = new Set();
  updateSources.forEach(function (src) {
    if (src === geometryLayer || src.isCamera) {
      geometryLayer.info.clear();
      fullUpdate = true;
    } else if (src.layer === geometryLayer) {
      filtered.add(src);
    }
  });
  return fullUpdate ? new Set([geometryLayer]) : filtered;
}

var _needsRedraw = /*#__PURE__*/new WeakMap();

var _updateLoopRestarted = /*#__PURE__*/new WeakMap();

var _lastTimestamp = /*#__PURE__*/new WeakMap();

var _update = /*#__PURE__*/new WeakSet();

var _step4 = /*#__PURE__*/new WeakSet();

var _renderView = /*#__PURE__*/new WeakSet();

var MainLoop = /*#__PURE__*/function (_EventDispatcher) {
  (0, _inherits2["default"])(MainLoop, _EventDispatcher);

  var _super = _createSuper(MainLoop);

  function MainLoop(scheduler, engine) {
    var _this;

    (0, _classCallCheck2["default"])(this, MainLoop);
    _this = _super.call(this);

    _classPrivateMethodInitSpec((0, _assertThisInitialized2["default"])(_this), _renderView);

    _classPrivateMethodInitSpec((0, _assertThisInitialized2["default"])(_this), _step4);

    _classPrivateMethodInitSpec((0, _assertThisInitialized2["default"])(_this), _update);

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _needsRedraw, {
      writable: true,
      value: false
    });

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _updateLoopRestarted, {
      writable: true,
      value: true
    });

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _lastTimestamp, {
      writable: true,
      value: 0
    });

    _this.renderingState = RENDERING_PAUSED;
    _this.scheduler = scheduler;
    _this.gfxEngine = engine; // TODO: remove me

    return _this;
  }

  (0, _createClass2["default"])(MainLoop, [{
    key: "scheduleViewUpdate",
    value: function scheduleViewUpdate(view, forceRedraw) {
      var _this2 = this;

      (0, _classPrivateFieldSet2["default"])(this, _needsRedraw, (0, _classPrivateFieldGet2["default"])(this, _needsRedraw) | forceRedraw);

      if (this.renderingState !== RENDERING_SCHEDULED) {
        this.renderingState = RENDERING_SCHEDULED;
        requestAnimationFrame(function (timestamp) {
          _classPrivateMethodGet(_this2, _step4, _step5).call(_this2, view, timestamp);
        });
      }
    }
  }]);
  return MainLoop;
}(_three.EventDispatcher);

function _update2(view, updateSources, dt) {
  var context = {
    camera: view.camera,
    engine: this.gfxEngine,
    scheduler: this.scheduler,
    view: view
  }; // replace layer with their parent where needed

  updateSources.forEach(function (src) {
    var layer = src.layer || src;

    if (layer.isLayer && layer.parent) {
      updateSources.add(layer.parent);
    }
  });

  var _iterator4 = _createForOfIteratorHelper(view.getLayers(function (x, y) {
    return !y;
  })),
      _step6;

  try {
    for (_iterator4.s(); !(_step6 = _iterator4.n()).done;) {
      var geometryLayer = _step6.value;
      context.geometryLayer = geometryLayer;

      if (geometryLayer.ready && geometryLayer.visible && !geometryLayer.frozen) {
        view.execFrameRequesters(MAIN_LOOP_EVENTS.BEFORE_LAYER_UPDATE, dt, (0, _classPrivateFieldGet2["default"])(this, _updateLoopRestarted), geometryLayer); // Filter updateSources that are relevant for the geometryLayer

        var srcs = filterChangeSources(updateSources, geometryLayer);

        if (srcs.size > 0) {
          // pre update attached layer
          var _iterator5 = _createForOfIteratorHelper(geometryLayer.attachedLayers),
              _step7;

          try {
            for (_iterator5.s(); !(_step7 = _iterator5.n()).done;) {
              var attachedLayer = _step7.value;

              if (attachedLayer.ready && attachedLayer.preUpdate) {
                attachedLayer.preUpdate(context, srcs);
              }
            } // `preUpdate` returns an array of elements to update

          } catch (err) {
            _iterator5.e(err);
          } finally {
            _iterator5.f();
          }

          var elementsToUpdate = geometryLayer.preUpdate(context, srcs); // `update` is called in `updateElements`.

          updateElements(context, geometryLayer, elementsToUpdate); // `postUpdate` is called when this geom layer update process is finished

          geometryLayer.postUpdate(context, geometryLayer, updateSources);
        } // Clear the cache of expired resources


        geometryLayer.cache.flush();
        view.execFrameRequesters(MAIN_LOOP_EVENTS.AFTER_LAYER_UPDATE, dt, (0, _classPrivateFieldGet2["default"])(this, _updateLoopRestarted), geometryLayer);
      }
    }
  } catch (err) {
    _iterator4.e(err);
  } finally {
    _iterator4.f();
  }
}

function _step5(view, timestamp) {
  var dt = timestamp - (0, _classPrivateFieldGet2["default"])(this, _lastTimestamp);

  view._executeFrameRequestersRemovals();

  view.execFrameRequesters(MAIN_LOOP_EVENTS.UPDATE_START, dt, (0, _classPrivateFieldGet2["default"])(this, _updateLoopRestarted));
  var willRedraw = (0, _classPrivateFieldGet2["default"])(this, _needsRedraw);
  (0, _classPrivateFieldSet2["default"])(this, _lastTimestamp, timestamp); // Reset internal state before calling _update (so future calls to View.notifyChange()
  // can properly change it)

  (0, _classPrivateFieldSet2["default"])(this, _needsRedraw, false);
  this.renderingState = RENDERING_PAUSED;
  var updateSources = new Set(view._changeSources);

  view._changeSources.clear(); // update camera


  var dim = this.gfxEngine.getWindowSize();
  view.execFrameRequesters(MAIN_LOOP_EVENTS.BEFORE_CAMERA_UPDATE, dt, (0, _classPrivateFieldGet2["default"])(this, _updateLoopRestarted));
  view.camera.update(dim.x, dim.y);
  view.execFrameRequesters(MAIN_LOOP_EVENTS.AFTER_CAMERA_UPDATE, dt, (0, _classPrivateFieldGet2["default"])(this, _updateLoopRestarted)); // Disable camera's matrix auto update to make sure the camera's
  // world matrix is never updated mid-update.
  // Otherwise inconsistencies can appear because object visibility
  // testing and object drawing could be performed using different
  // camera matrixWorld.
  // Note: this is required at least because WEBGLRenderer calls
  // camera.updateMatrixWorld()

  var oldAutoUpdate = view.camera.camera3D.matrixAutoUpdate;
  view.camera.camera3D.matrixAutoUpdate = false; // update data-structure

  _classPrivateMethodGet(this, _update, _update2).call(this, view, updateSources, dt);

  if (this.scheduler.commandsWaitingExecutionCount() == 0) {
    this.dispatchEvent({
      type: 'command-queue-empty'
    });
  } // Redraw *only* if needed.
  // (redraws only happen when this.#needsRedraw is true, which in turn only happens when
  // view.notifyChange() is called with redraw=true)
  // As such there's no continuous update-loop, instead we use a ad-hoc update/render
  // mechanism.


  if (willRedraw) {
    _classPrivateMethodGet(this, _renderView, _renderView2).call(this, view, dt);
  } // next time, we'll consider that we've just started the loop if we are still PAUSED now


  (0, _classPrivateFieldSet2["default"])(this, _updateLoopRestarted, this.renderingState === RENDERING_PAUSED);
  view.camera.camera3D.matrixAutoUpdate = oldAutoUpdate;
  view.execFrameRequesters(MAIN_LOOP_EVENTS.UPDATE_END, dt, (0, _classPrivateFieldGet2["default"])(this, _updateLoopRestarted));
}

function _renderView2(view, dt) {
  view.execFrameRequesters(MAIN_LOOP_EVENTS.BEFORE_RENDER, dt, (0, _classPrivateFieldGet2["default"])(this, _updateLoopRestarted));

  if (view.render) {
    view.render();
  } else {
    // use default rendering method
    this.gfxEngine.renderView(view);
  }

  view.execFrameRequesters(MAIN_LOOP_EVENTS.AFTER_RENDER, dt, (0, _classPrivateFieldGet2["default"])(this, _updateLoopRestarted));
}

var _default = MainLoop;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Math/Ellipsoid.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Math/Ellipsoid.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.ellipsoidSizes = exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _proj = _interopRequireDefault(__webpack_require__(/*! proj4 */ "./node_modules/proj4/lib/index.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var ellipsoidSizes = new THREE.Vector3(_proj["default"].WGS84.a, _proj["default"].WGS84.a, _proj["default"].WGS84.b);
exports.ellipsoidSizes = ellipsoidSizes;
var normal = new THREE.Vector3();

var Ellipsoid = /*#__PURE__*/function () {
  function Ellipsoid() {
    var size = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ellipsoidSizes;
    (0, _classCallCheck2["default"])(this, Ellipsoid);
    this.size = new THREE.Vector3();
    this._radiiSquared = new THREE.Vector3();
    this._invRadiiSquared = new THREE.Vector3();
    this.eccentricity = 0;
    this.setSize(size);
  }

  (0, _createClass2["default"])(Ellipsoid, [{
    key: "geodeticSurfaceNormal",
    value: function geodeticSurfaceNormal(cartesian) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Vector3();
      return cartesian.toVector3(target).multiply(this._invRadiiSquared).normalize();
    }
  }, {
    key: "geodeticSurfaceNormalCartographic",
    value: function geodeticSurfaceNormalCartographic(coordCarto) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Vector3();
      var longitude = THREE.MathUtils.degToRad(coordCarto.longitude);
      var latitude = THREE.MathUtils.degToRad(coordCarto.latitude);
      var cosLatitude = Math.cos(latitude);
      return target.set(cosLatitude * Math.cos(longitude), cosLatitude * Math.sin(longitude), Math.sin(latitude));
    }
  }, {
    key: "setSize",
    value: function setSize(size) {
      this.size.set(size.x, size.y, size.z);

      this._radiiSquared.multiplyVectors(size, size);

      this._invRadiiSquared.x = size.x == 0 ? 0 : 1 / this._radiiSquared.x;
      this._invRadiiSquared.y = size.y == 0 ? 0 : 1 / this._radiiSquared.y;
      this._invRadiiSquared.z = size.z == 0 ? 0 : 1 / this._radiiSquared.z;
      this.eccentricity = Math.sqrt(this._radiiSquared.x - this._radiiSquared.z) / this.size.x;
    }
  }, {
    key: "cartographicToCartesian",
    value: function cartographicToCartesian(coordCarto) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Vector3();
      normal.copy(coordCarto.geodesicNormal);
      target.multiplyVectors(this._radiiSquared, normal);
      var gamma = Math.sqrt(normal.dot(target));
      target.divideScalar(gamma);
      normal.multiplyScalar(coordCarto.altitude);
      return target.add(normal);
    }
    /**
     * Convert cartesian coordinates to geographic according to the current ellipsoid of revolution.
     * @param {Object} position - The coordinate to convert
     * @param {number} position.x
     * @param {number} position.y
     * @param {number} position.z
     * @param {Coordinate} [target] coordinate to copy result
     * @returns {Coordinate} an object describing the coordinates on the reference ellipsoid, angles are in degree
     */

  }, {
    key: "cartesianToCartographic",
    value: function cartesianToCartographic(position) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
      // for details, see for example http://www.linz.govt.nz/data/geodetic-system/coordinate-conversion/geodetic-datum-conversions/equations-used-datum
      // TODO the following is only valable for oblate ellipsoid of revolution. do we want to support triaxial ellipsoid?
      var R = Math.sqrt(position.x * position.x + position.y * position.y + position.z * position.z);
      var a = this.size.x; // x

      var b = this.size.z; // z

      var e = Math.abs((a * a - b * b) / (a * a));
      var f = 1 - Math.sqrt(1 - e);
      var rsqXY = Math.sqrt(position.x * position.x + position.y * position.y);
      var theta = Math.atan2(position.y, position.x);
      var nu = Math.atan(position.z / rsqXY * (1 - f + e * a / R));
      var sinu = Math.sin(nu);
      var cosu = Math.cos(nu);
      var phi = Math.atan((position.z * (1 - f) + e * a * sinu * sinu * sinu) / ((1 - f) * (rsqXY - e * a * cosu * cosu * cosu)));
      var h = rsqXY * Math.cos(phi) + position.z * Math.sin(phi) - a * Math.sqrt(1 - e * Math.sin(phi) * Math.sin(phi));
      return target.setFromValues(THREE.MathUtils.radToDeg(theta), THREE.MathUtils.radToDeg(phi), h);
    }
  }, {
    key: "cartographicToCartesianArray",
    value: function cartographicToCartesianArray(coordCartoArray) {
      var cartesianArray = [];

      for (var i = 0; i < coordCartoArray.length; i++) {
        cartesianArray.push(this.cartographicToCartesian(coordCartoArray[i]));
      }

      return cartesianArray;
    }
  }, {
    key: "intersection",
    value: function intersection(ray) {
      var EPSILON = 0.0001;
      var O_C = ray.origin;
      var dir = ray.direction; // normalizeVector( dir );

      var a = dir.x * dir.x * this._invRadiiSquared.x + dir.y * dir.y * this._invRadiiSquared.y + dir.z * dir.z * this._invRadiiSquared.z;
      var b = 2 * O_C.x * dir.x * this._invRadiiSquared.x + 2 * O_C.y * dir.y * this._invRadiiSquared.y + 2 * O_C.z * dir.z * this._invRadiiSquared.z;
      var c = O_C.x * O_C.x * this._invRadiiSquared.x + O_C.y * O_C.y * this._invRadiiSquared.y + O_C.z * O_C.z * this._invRadiiSquared.z - 1;
      var d = b * b - 4 * a * c;

      if (d < 0 || a === 0 || b === 0 || c === 0) {
        return false;
      }

      d = Math.sqrt(d);
      var t1 = (-b + d) / (2 * a);
      var t2 = (-b - d) / (2 * a);

      if (t1 <= EPSILON && t2 <= EPSILON) {
        return false;
      } // both intersections are behind the ray origin
      // var back = (t1 <= EPSILON || t2 <= EPSILON); // If only one intersection (t>0) then we are inside the ellipsoid and the intersection is at the back of the ellipsoid


      var t = 0;

      if (t1 <= EPSILON) {
        t = t2;
      } else if (t2 <= EPSILON) {
        t = t1;
      } else {
        t = t1 < t2 ? t1 : t2;
      }

      if (t < EPSILON) {
        return false;
      } // Too close to intersection


      var inter = new THREE.Vector3();
      inter.addVectors(ray.origin, dir.clone().setLength(t));
      return inter;
    }
  }, {
    key: "computeDistance",
    value: function computeDistance(coordCarto1, coordCarto2) {
      console.warn('computeDistance is renamed to geodesicDistance');
      this.geodesicDistance(coordCarto1, coordCarto2);
    }
    /**
     * Calculate the geodesic distance, between coordCarto1 and coordCarto2.
     * It's most short distance on ellipsoid surface between coordCarto1 and coordCarto2.
     * It's called orthodromy.
     *
     * @param      {Coordinates}  coordCarto1  The coordinate carto 1
     * @param      {Coordinates}  coordCarto2  The coordinate carto 2
     * @return     {number}  The orthodromic distance between the two given coordinates.
     */

  }, {
    key: "geodesicDistance",
    value: function geodesicDistance(coordCarto1, coordCarto2) {
      // The formula uses the distance on approximated sphere,
      // with the nearest local radius of curvature of the ellipsoid
      // https://geodesie.ign.fr/contenu/fichiers/Distance_longitude_latitude.pdf
      var longitude1 = THREE.MathUtils.degToRad(coordCarto1.longitude);
      var latitude1 = THREE.MathUtils.degToRad(coordCarto1.latitude);
      var longitude2 = THREE.MathUtils.degToRad(coordCarto2.longitude);
      var latitude2 = THREE.MathUtils.degToRad(coordCarto2.latitude);
      var distRad = Math.acos(Math.sin(latitude1) * Math.sin(latitude2) + Math.cos(latitude1) * Math.cos(latitude2) * Math.cos(longitude2 - longitude1));
      var e = this.eccentricity;
      var es = Math.pow(e * Math.sin((latitude1 + latitude2) * 0.5), 2);
      var rho = this.size.x * (1 - Math.pow(e, 2)) / Math.pow(1 - es, 3 / 2);
      var N = this.size.x / Math.sqrt(1 - es);
      return distRad * Math.sqrt(rho * N);
    }
  }]);
  return Ellipsoid;
}();

var _default = Ellipsoid;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Picking.js":
/*!*************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Picking.js ***!
  \*************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _RenderMode = _interopRequireDefault(__webpack_require__(/*! ../Renderer/RenderMode */ "./node_modules/itowns/lib/Renderer/RenderMode.js"));

var _LayeredMaterial = __webpack_require__(/*! ../Renderer/LayeredMaterial */ "./node_modules/itowns/lib/Renderer/LayeredMaterial.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function hideEverythingElse(view) {
  var threejsLayer = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
  // We want to render only 'object' and its hierarchy.
  // So if it uses threejsLayer defined -> force it on the camera
  // (or use the default one: 0)
  var prev = view.camera.camera3D.layers.mask;
  view.camera.camera3D.layers.mask = 1 << threejsLayer;
  return function () {
    view.camera.camera3D.layers.mask = prev;
  };
}

var depthRGBA = new THREE.Vector4(); // TileMesh picking support function

function screenCoordsToNodeId(view, tileLayer, viewCoords) {
  var radius = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
  var dim = view.mainLoop.gfxEngine.getWindowSize();
  viewCoords = viewCoords || new THREE.Vector2(Math.floor(dim.x / 2), Math.floor(dim.y / 2));
  var restore = tileLayer.level0Nodes.map(function (n) {
    return _RenderMode["default"].push(n, _RenderMode["default"].MODES.ID);
  });
  var undoHide = hideEverythingElse(view, tileLayer.object3d, tileLayer.threejsLayer);
  var buffer = view.mainLoop.gfxEngine.renderViewToBuffer({
    camera: view.camera,
    scene: tileLayer.object3d
  }, {
    x: viewCoords.x - radius,
    y: viewCoords.y - radius,
    width: 1 + radius * 2,
    height: 1 + radius * 2
  });
  undoHide();
  restore.forEach(function (r) {
    return r();
  });
  var ids = [];
  traversePickingCircle(radius, function (x, y) {
    var idx = (y * 2 * radius + x) * 4;
    var data = buffer.slice(idx, idx + 4 || undefined);
    depthRGBA.fromArray(data).divideScalar(255.0);
    var unpack = (0, _LayeredMaterial.unpack1K)(depthRGBA, Math.pow(256, 3));

    var _id = Math.round(unpack);

    if (!ids.includes(_id)) {
      ids.push(_id);
    }
  });
  return ids;
}

function traversePickingCircle(radius, callback) {
  // iterate on radius so we get closer to the mouse
  // results first.
  // Result traversal order for radius=2
  // --3--
  // -323-
  // 32123
  // -323
  // --3--
  var prevSq;

  for (var r = 0; r <= radius; r++) {
    var sq = r * r;

    for (var x = -r; x <= r; x++) {
      var sqx = x * x;

      for (var y = -r; y <= r; y++) {
        var dist = sqx + y * y; // skip if too far

        if (dist > sq) {
          continue;
        } // skip if belongs to previous


        if (dist <= prevSq) {
          continue;
        }

        if (callback(x, y) === false) {
          return;
        }
      }
    }

    prevSq = sq;
  }
}

function findLayerInParent(obj) {
  if (obj.layer) {
    return obj.layer;
  }

  if (obj.parent) {
    return findLayerInParent(obj.parent);
  }
}

var raycaster = new THREE.Raycaster();
/**
 * @module Picking
 *
 * Implement various picking methods for geometry layers.
 * These methods are not meant to be used directly, see View.pickObjectsAt
 * instead.
 *
 * All the methods here takes the same parameters:
 *   - the View instance
 *   - view coordinates (in pixels) where picking should be done
 *   - radius (in pixels) of the picking circle
 *   - layer: the geometry layer used for picking
 */

var _default = {
  pickTilesAt: function pickTilesAt(view, viewCoords, radius, layer) {
    var results = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];

    var _ids = screenCoordsToNodeId(view, layer, viewCoords, radius);

    var extractResult = function (node) {
      if (_ids.includes(node.id) && node.isTileMesh) {
        results.push({
          object: node,
          layer: layer
        });
      }
    };

    var _iterator = _createForOfIteratorHelper(layer.level0Nodes),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var n = _step.value;
        n.traverse(extractResult);
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }

    return results;
  },
  pickPointsAt: function pickPointsAt(view, viewCoords, radius, layer) {
    var result = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];

    if (!layer.root) {
      return;
    } // enable picking mode for points material


    layer.object3d.traverse(function (o) {
      if (o.isPoints && o.baseId) {
        o.material.enablePicking(true);
      }
    });
    var undoHide = hideEverythingElse(view, layer.object3d, layer.threejsLayer); // render 1 pixel
    // TODO: support more than 1 pixel selection

    var buffer = view.mainLoop.gfxEngine.renderViewToBuffer({
      camera: view.camera,
      scene: layer.object3d
    }, {
      x: viewCoords.x - radius,
      y: viewCoords.y - radius,
      width: 1 + radius * 2,
      height: 1 + radius * 2
    });
    undoHide();
    var candidates = [];
    traversePickingCircle(radius, function (x, y) {
      var idx = (y * 2 * radius + x) * 4;
      var data = buffer.slice(idx, idx + 4); // see PotreeProvider and the construction of unique_id

      var objId = data[0] << 8 | data[1];
      var index = data[2] << 8 | data[3];
      var r = {
        objId: objId,
        index: index
      };

      for (var i = 0; i < candidates.length; i++) {
        if (candidates[i].objId == r.objId && candidates[i].index == r.index) {
          return;
        }
      }

      candidates.push(r);
    });
    layer.object3d.traverse(function (o) {
      if (o.isPoints && o.baseId) {
        // disable picking mode
        o.material.enablePicking(false); // if baseId matches objId, the clicked point belongs to `o`

        for (var i = 0; i < candidates.length; i++) {
          if (candidates[i].objId == o.baseId) {
            result.push({
              object: o,
              index: candidates[i].index,
              layer: layer
            });
          }
        }
      }
    });
    return result;
  },

  /*
   * Default picking method. Uses THREE.Raycaster
   */
  pickObjectsAt: function pickObjectsAt(view, viewCoords, radius, object) {
    var target = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];
    var threejsLayer = arguments.length > 5 ? arguments[5] : undefined;

    if (threejsLayer !== undefined) {
      raycaster.layers.set(threejsLayer);
    } else {
      raycaster.layers.enableAll();
    }

    if (radius < 0) {
      var _normalized = view.viewToNormalizedCoords(viewCoords);

      raycaster.setFromCamera(_normalized, view.camera.camera3D);
      var intersects = raycaster.intersectObject(object, true);

      var _iterator2 = _createForOfIteratorHelper(intersects),
          _step2;

      try {
        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
          var inter = _step2.value;
          inter.layer = findLayerInParent(inter.object);
          target.push(inter);
        }
      } catch (err) {
        _iterator2.e(err);
      } finally {
        _iterator2.f();
      }

      return target;
    } // Instead of doing N raycast (1 per x,y returned by traversePickingCircle),
    // we force render the zone of interest.
    // Then we'll only do raycasting for the pixels where something was drawn.


    var zone = {
      x: viewCoords.x - radius,
      y: viewCoords.y - radius,
      width: 1 + radius * 2,
      height: 1 + radius * 2
    };
    var pixels = view.mainLoop.gfxEngine.renderViewToBuffer({
      scene: object,
      camera: view.camera
    }, zone);
    var clearColor = new THREE.Color();
    view.mainLoop.gfxEngine.renderer.getClearColor(clearColor);
    var clearR = Math.round(255 * clearColor.r);
    var clearG = Math.round(255 * clearColor.g);
    var clearB = Math.round(255 * clearColor.b); // Raycaster use NDC coordinate

    var normalized = view.viewToNormalizedCoords(viewCoords);
    var tmp = normalized.clone();
    traversePickingCircle(radius, function (x, y) {
      // x, y are offset from the center of the picking circle,
      // and pixels is a square where 0, 0 is the top-left corner.
      // So we need to shift x,y by radius.
      var offset = ((y + radius) * (radius * 2 + 1) + (x + radius)) * 4;
      var r = pixels[offset];
      var g = pixels[offset + 1];
      var b = pixels[offset + 2]; // Use approx. test to avoid rounding error or to behave
      // differently depending on hardware rounding mode.

      if (Math.abs(clearR - r) <= 1 && Math.abs(clearG - g) <= 1 && Math.abs(clearB - b) <= 1) {
        // skip because nothing has been rendered here
        return;
      } // Perform raycasting


      tmp.setX(normalized.x + x / view.camera.width).setY(normalized.y + y / view.camera.height);
      raycaster.setFromCamera(tmp, view.camera.camera3D);
      var intersects = raycaster.intersectObject(object, true);

      var _iterator3 = _createForOfIteratorHelper(intersects),
          _step3;

      try {
        for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
          var _inter = _step3.value;
          _inter.layer = findLayerInParent(_inter.object);
          target.push(_inter);
        } // Stop at first hit

      } catch (err) {
        _iterator3.e(err);
      } finally {
        _iterator3.f();
      }

      return target.length == 0;
    });
    return target;
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/PointCloudNode.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Core/PointCloudNode.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var PointCloudNode = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(PointCloudNode, _THREE$EventDispatche);

  var _super = _createSuper(PointCloudNode);

  function PointCloudNode() {
    var _this;

    var numPoints = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
    var layer = arguments.length > 1 ? arguments[1] : undefined;
    (0, _classCallCheck2["default"])(this, PointCloudNode);
    _this = _super.call(this);
    _this.numPoints = numPoints;
    _this.layer = layer;
    _this.children = [];
    _this.bbox = new THREE.Box3();
    _this.sse = -1;
    return _this;
  }

  (0, _createClass2["default"])(PointCloudNode, [{
    key: "add",
    value: function add(node, indexChild) {
      this.children.push(node);
      node.parent = this;
      this.createChildAABB(node, indexChild);
    }
  }, {
    key: "load",
    value: function load() {
      var _this2 = this;

      // Query octree/HRC if we don't have children potreeNode yet.
      if (!this.octreeIsLoaded) {
        this.loadOctree();
      }

      return this.layer.source.fetcher(this.url, this.layer.source.networkOptions).then(function (file) {
        return _this2.layer.source.parse(file, {
          out: _this2.layer,
          "in": _this2.layer.source
        });
      });
    }
  }, {
    key: "findCommonAncestor",
    value: function findCommonAncestor(node) {
      if (node.depth == this.depth) {
        if (node.id == this.id) {
          return node;
        } else if (node.depth != 0) {
          return this.parent.findCommonAncestor(node.parent);
        }
      } else if (node.depth < this.depth) {
        return this.parent.findCommonAncestor(node);
      } else {
        return this.findCommonAncestor(node.parent);
      }
    }
  }]);
  return PointCloudNode;
}(THREE.EventDispatcher);

var _default = PointCloudNode;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/PotreeNode.js":
/*!****************************************************!*\
  !*** ./node_modules/itowns/lib/Core/PotreeNode.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

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var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _PointCloudNode2 = _interopRequireDefault(__webpack_require__(/*! ./PointCloudNode */ "./node_modules/itowns/lib/Core/PointCloudNode.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

// Create an A(xis)A(ligned)B(ounding)B(ox) for the child `childIndex` of one aabb.
// (PotreeConverter protocol builds implicit octree hierarchy by applying the same
// subdivision algo recursively)
var dHalfLength = new THREE.Vector3();

var PotreeNode = /*#__PURE__*/function (_PointCloudNode) {
  (0, _inherits2["default"])(PotreeNode, _PointCloudNode);

  var _super = _createSuper(PotreeNode);

  function PotreeNode() {
    var _this;

    var numPoints = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
    var childrenBitField = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
    var layer = arguments.length > 2 ? arguments[2] : undefined;
    (0, _classCallCheck2["default"])(this, PotreeNode);
    _this = _super.call(this, numPoints, layer);
    _this.childrenBitField = childrenBitField;
    _this.id = '';
    _this.depth = 0;
    _this.baseurl = layer.source.baseurl;
    return _this;
  }

  (0, _createClass2["default"])(PotreeNode, [{
    key: "add",
    value: function add(node, indexChild, root) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(PotreeNode.prototype), "add", this).call(this, node, indexChild);
      node.id = this.id + indexChild;
      node.depth = node.id.length;

      if (node.id.length % this.layer.hierarchyStepSize == 0) {
        node.baseurl = "".concat(root.baseurl, "/").concat(node.id.substr(root.id.length));
      } else {
        node.baseurl = root.baseurl;
      }
    }
  }, {
    key: "createChildAABB",
    value: function createChildAABB(node, childIndex) {
      // Code inspired from potree
      node.bbox.copy(this.bbox);
      this.bbox.getCenter(node.bbox.max);
      dHalfLength.copy(node.bbox.max).sub(this.bbox.min);

      if (childIndex === 1) {
        node.bbox.min.z += dHalfLength.z;
        node.bbox.max.z += dHalfLength.z;
      } else if (childIndex === 3) {
        node.bbox.min.z += dHalfLength.z;
        node.bbox.max.z += dHalfLength.z;
        node.bbox.min.y += dHalfLength.y;
        node.bbox.max.y += dHalfLength.y;
      } else if (childIndex === 0) {//
      } else if (childIndex === 2) {
        node.bbox.min.y += dHalfLength.y;
        node.bbox.max.y += dHalfLength.y;
      } else if (childIndex === 5) {
        node.bbox.min.z += dHalfLength.z;
        node.bbox.max.z += dHalfLength.z;
        node.bbox.min.x += dHalfLength.x;
        node.bbox.max.x += dHalfLength.x;
      } else if (childIndex === 7) {
        node.bbox.min.add(dHalfLength);
        node.bbox.max.add(dHalfLength);
      } else if (childIndex === 4) {
        node.bbox.min.x += dHalfLength.x;
        node.bbox.max.x += dHalfLength.x;
      } else if (childIndex === 6) {
        node.bbox.min.y += dHalfLength.y;
        node.bbox.max.y += dHalfLength.y;
        node.bbox.min.x += dHalfLength.x;
        node.bbox.max.x += dHalfLength.x;
      }
    }
  }, {
    key: "octreeIsLoaded",
    get: function get() {
      return !(this.childrenBitField && this.children.length === 0);
    }
  }, {
    key: "url",
    get: function get() {
      return "".concat(this.baseurl, "/r").concat(this.id, ".").concat(this.layer.source.extension);
    }
  }, {
    key: "loadOctree",
    value: function loadOctree() {
      var _this2 = this;

      var octreeUrl = "".concat(this.baseurl, "/r").concat(this.id, ".").concat(this.layer.source.extensionOctree);
      return this.layer.source.fetcher(octreeUrl, this.layer.source.networkOptions).then(function (blob) {
        var view = new DataView(blob);
        var stack = [];
        var offset = 0;
        _this2.childrenBitField = view.getUint8(0);
        offset += 1;
        _this2.numPoints = view.getUint32(1, true);
        offset += 4;
        stack.push(_this2);

        while (stack.length && offset < blob.byteLength) {
          var snode = stack.shift(); // look up 8 children

          for (var indexChild = 0; indexChild < 8; indexChild++) {
            // does snode have a #indexChild child ?
            if (snode.childrenBitField & 1 << indexChild && offset + 5 <= blob.byteLength) {
              var childrenBitField = view.getUint8(offset);
              offset += 1;

              var numPoints = view.getUint32(offset, true) || _this2.numPoints;

              offset += 4;
              var item = new PotreeNode(numPoints, childrenBitField, _this2.layer);
              snode.add(item, indexChild, _this2);
              stack.push(item);
            }
          }
        }
      });
    }
  }]);
  return PotreeNode;
}(_PointCloudNode2["default"]);

var _default = PotreeNode;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/Globe/Atmosphere.js":
/*!*****************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/Globe/Atmosphere.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _GeometryLayer2 = _interopRequireDefault(__webpack_require__(/*! ../../../Layer/GeometryLayer */ "./node_modules/itowns/lib/Layer/GeometryLayer.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../../Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Ellipsoid = __webpack_require__(/*! ../../Math/Ellipsoid */ "./node_modules/itowns/lib/Core/Math/Ellipsoid.js");

var _CoordStars = _interopRequireDefault(__webpack_require__(/*! ../../Geographic/CoordStars */ "./node_modules/itowns/lib/Core/Geographic/CoordStars.js"));

var _SkyShader = _interopRequireDefault(__webpack_require__(/*! ./SkyShader */ "./node_modules/itowns/lib/Core/Prefab/Globe/SkyShader.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/* babel-plugin-inline-import './Shaders/skyFS.glsl' */
var skyFS = "uniform vec3 v3LightPos;\nuniform float g;\nuniform float g2;\n\nvarying vec3 v3Direction;\nvarying vec3 c0;\nvarying vec3 c1;\n\n// Calculates the Mie phase function\nfloat getMiePhase(float fCos, float fCos2, float g, float g2) {\n    return 1.5 * ((1.0 - g2) / (2.0 + g2)) * (1.0 + fCos2) / pow(1.0 + g2 - 2.0 * g * fCos, 1.5);\n}\n\n// Calculates the Rayleigh phase function\nfloat getRayleighPhase(float fCos2) {\n    return 0.75 + 0.75 * fCos2;\n}\n\nvoid main (void) {\n    float fCos = dot(v3LightPos, v3Direction) / length(v3Direction);\n    float fCos2 = fCos * fCos;\n\n    vec3 color = getRayleighPhase(fCos2) * c0 + getMiePhase(fCos, fCos2, g, g2) * c1;\n\n    gl_FragColor = vec4(color, 1.0);\n    gl_FragColor.a = gl_FragColor.b;\n}";

/* babel-plugin-inline-import './Shaders/skyVS.glsl' */
var skyVS = "uniform vec3 v3LightPosition;   // The direction vector to the light source\nuniform vec3 v3InvWavelength;   // 1 / pow(wavelength, 4) for the red, green, and blue channels\nuniform float fCameraHeight;    // The camera's current height\nuniform float fCameraHeight2;   // fCameraHeight^2\nuniform float fOuterRadius;     // The outer (atmosphere) radius\nuniform float fOuterRadius2;    // fOuterRadius^2\nuniform float fInnerRadius;     // The inner (planetary) radius\nuniform float fInnerRadius2;    // fInnerRadius^2\nuniform float fKrESun;          // Kr * ESun\nuniform float fKmESun;          // Km * ESun\nuniform float fKr4PI;           // Kr * 4 * PI\nuniform float fKm4PI;           // Km * 4 * PI\nuniform float fScale;           // 1 / (fOuterRadius - fInnerRadius)\nuniform float fScaleDepth;      // The scale depth (i.e. the altitude at which the atmosphere's average density is found)\nuniform float fScaleOverScaleDepth; // fScale / fScaleDepth\n\nconst int nSamples = 3;\nconst float fSamples = 3.0;\n\nvarying vec3 v3Direction;\nvarying vec3 c0;\nvarying vec3 c1;\n\nfloat scale(float fCos) {\n    float x = 1.0 - fCos;\n    return fScaleDepth * exp(-0.00287 + x*(0.459 + x*(3.83 + x*(-6.80 + x*5.25))));\n}\n\nvoid main(void) {\n    float lengthCamera = length(cameraPosition);\n    float cameraHeight2 = lengthCamera * lengthCamera;\n\n    // Get the ray from the camera to the vertex and its length (which is the far point of the ray passing through the atmosphere)\n    vec3 v3Ray = position - cameraPosition;\n    float fFar = length(v3Ray);\n    v3Ray /= fFar;\n\n    // Calculate the closest intersection of the ray with the outer atmosphere (which is the near point of the ray passing through the atmosphere)\n    float B = 2.0 * dot(cameraPosition, v3Ray);\n    float C = cameraHeight2 - fOuterRadius2;\n    float fDet = max(0.0, B*B - 4.0 * C);\n    float fNear = 0.5 * (-B - sqrt(fDet));\n\n    // Calculate the ray's starting position, then calculate its scattering offset\n    vec3 v3Start = cameraPosition + v3Ray * fNear;\n    fFar -= fNear;\n    float fStartAngle = dot(v3Ray, v3Start) / fOuterRadius;\n    float fStartDepth = exp(-1.0 / fScaleDepth);\n    float fStartOffset = fStartDepth * scale(fStartAngle);\n\n    // Initialize the scattering loop variables\n    float fSampleLength = fFar / fSamples;\n    float fScaledLength = fSampleLength * fScale;\n    vec3 v3SampleRay = v3Ray * fSampleLength;\n    vec3 v3SamplePoint = v3Start + v3SampleRay * 0.5;\n\n    // Now loop through the sample rays\n    vec3 v3FrontColor = vec3(0.0, 0.0, 0.0);\n    for(int i=0; i<nSamples; i++)\n    {\n        float fHeight = length(v3SamplePoint);\n        float fDepth = exp(fScaleOverScaleDepth * (fInnerRadius - fHeight));\n        float fLightAngle = dot(v3LightPosition, v3SamplePoint) / fHeight;\n        float fCameraAngle = dot(v3Ray, v3SamplePoint) / fHeight;\n        float fScatter = (fStartOffset + fDepth * (scale(fLightAngle) - scale(fCameraAngle)));\n        vec3 v3Attenuate = exp(-fScatter * (v3InvWavelength * fKr4PI + fKm4PI));\n\n        v3FrontColor += v3Attenuate * (fDepth * fScaledLength);\n        v3SamplePoint += v3SampleRay;\n    }\n\n    // Finally, scale the Mie and Rayleigh colors and set up the varying variables for the pixel shader\n    gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n    c0 = v3FrontColor * (v3InvWavelength * fKrESun);\n    c1 = v3FrontColor * fKmESun;\n    v3Direction = cameraPosition - position;\n}";

/* babel-plugin-inline-import './Shaders/groundFS.glsl' */
var groundFS = "varying vec3 c0;\nvarying vec3 c1;\n\nvoid main (void) {\n\tgl_FragColor = vec4(c1, 1.0 - c0/4.);\n}";

/* babel-plugin-inline-import './Shaders/groundVS.glsl' */
var groundVS = "uniform vec3 v3LightPosition;   // The direction vector to the light source\nuniform vec3 v3InvWavelength;   // 1 / pow(wavelength, 4) for the red, green, and blue channels\nuniform float fCameraHeight;    // The camera's current height\nuniform float fCameraHeight2;   // fCameraHeight^2\nuniform float fOuterRadius;     // The outer (atmosphere) radius\nuniform float fOuterRadius2;    // fOuterRadius^2\nuniform float fInnerRadius;     // The inner (planetary) radius\nuniform float fInnerRadius2;    // fInnerRadius^2\nuniform float fKrESun;          // Kr * ESun\nuniform float fKmESun;          // Km * ESun\nuniform float fKr4PI;           // Kr * 4 * PI\nuniform float fKm4PI;           // Km * 4 * PI\nuniform float fScale;           // 1 / (fOuterRadius - fInnerRadius)\nuniform float fScaleDepth;      // The scale depth (i.e. the altitude at which the atmosphere's average density is found)\nuniform float fScaleOverScaleDepth; // fScale / fScaleDepth\n\nvarying vec3 c0;\nvarying vec3 c1;\n\nconst int nSamples = 3;\nconst float fSamples = 3.0;\n\nfloat scale(float fCos)\n{\n    float x = 1.0 - fCos;\n    return fScaleDepth * exp(-0.00287 + x*(0.459 + x*(3.83 + x*(-6.80 + x*5.25))));\n}\n\nvoid main(void) {\n\n     float cameraHeight2 = length(cameraPosition) * length(cameraPosition);\n\n    // Get the ray from the camera to the vertex and its length (which is the far point of the ray passing through the atmosphere)\n    vec3 v3Ray = position - cameraPosition;\n    float fFar = length(v3Ray);\n    v3Ray /= fFar;\n\n    // Calculate the closest intersection of the ray with the outer atmosphere (which is the near point of the ray passing through the atmosphere)\n    float B = 2.0 * dot(cameraPosition, v3Ray);\n    float C = cameraHeight2 - fOuterRadius2;\n    float fDet = max(0.0, B*B - 4.0 * C);\n    float fNear = 0.5 * (-B - sqrt(fDet));\n\n    // Calculate the ray's starting position, then calculate its scattering offset\n    vec3 v3Start = cameraPosition + v3Ray * fNear;\n    fFar -= fNear;\n    float fDepth = exp((fInnerRadius - fOuterRadius) / fScaleDepth);\n    float fCameraAngle = dot(-v3Ray, position) / length(position);\n    float fLightAngle = dot(v3LightPosition, position) / length(position);\n    float fCameraScale = scale(fCameraAngle);\n    float fLightScale = scale(fLightAngle);\n    float fCameraOffset = fDepth*fCameraScale;\n    float fTemp = (fLightScale + fCameraScale);\n\n    // Initialize the scattering loop variables\n    float fSampleLength = fFar / fSamples;\n    float fScaledLength = fSampleLength * fScale;\n    vec3 v3SampleRay = v3Ray * fSampleLength;\n    vec3 v3SamplePoint = v3Start + v3SampleRay * 0.5;\n\n    // Now loop through the sample rays\n    vec3 v3FrontColor = vec3(0.0, 0.0, 0.0);\n    vec3 v3Attenuate = vec3(0.0, 0.0, 0.0);\n    for(int i=0; i<nSamples; i++)\n    {\n        float fHeight = length(v3SamplePoint);\n        float fDepth = exp(fScaleOverScaleDepth * (fInnerRadius - fHeight));\n        float fScatter = fDepth*fTemp - fCameraOffset;\n        v3Attenuate = exp(-fScatter * (v3InvWavelength * fKr4PI + fKm4PI));\n        v3FrontColor += v3Attenuate * (fDepth * fScaledLength);\n        v3SamplePoint += v3SampleRay;\n    }\n\n    // Calculate the attenuation factor for the ground\n    c0 = v3Attenuate;\n    c1 = v3FrontColor * (v3InvWavelength * fKrESun + fKmESun);\n\n    gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";

/* babel-plugin-inline-import './Shaders/GlowFS.glsl' */
var GlowFS = "#include <logdepthbuf_pars_fragment>\n\nuniform int atmoIN;\nvarying float intensity;\n\nvec4 glowColor = vec4(0.45, 0.74, 1. ,1.0);\n\nvoid main() {\n    #include <logdepthbuf_fragment>\n    gl_FragColor = glowColor * intensity;\n}\n\n";

/* babel-plugin-inline-import './Shaders/GlowVS.glsl' */
var GlowVS = "#include <common>\n#include <logdepthbuf_pars_vertex>\n\nuniform int atmoIN;\nvarying float intensity;\n\nvoid main()\n{\n    vec3 normalES    = normalize( normalMatrix * normal );\n    vec3 normalCAMES = normalize( normalMatrix * cameraPosition );\n\n    if(atmoIN == 0) {\n        intensity = pow(0.666 - dot(normalES, normalCAMES), 4. );\n    } else {\n        intensity = pow( 1.  - dot(normalES, normalCAMES), 0.8 );\n    }\n\n    gl_Position = projectionMatrix * modelViewMatrix * vec4( position,  1.0 );\n\n    #include <logdepthbuf_vertex>\n}\n\n\n";
var LIGHTING_POSITION = new THREE.Vector3(1, 0, 0);
var v = new THREE.Vector3();
var coordCam = new _Coordinates["default"]('EPSG:4326');
var coordGeoCam = new _Coordinates["default"]('EPSG:4326');
var skyBaseColor = new THREE.Color(0x93d5f8);
var colorSky = new THREE.Color();
var spaceColor = new THREE.Color(0x030508);
var limitAlti = 600000;
var mfogDistance = _Ellipsoid.ellipsoidSizes.x * 160.0;

var Atmosphere = /*#__PURE__*/function (_GeometryLayer) {
  (0, _inherits2["default"])(Atmosphere, _GeometryLayer);

  var _super = _createSuper(Atmosphere);

  /**
  * It's layer to simulate Globe atmosphere.
  * There's 2 modes : simple and realistic (atmospheric-scattering).
   *
  * The atmospheric-scattering it is taken from :
  * * [Atmosphere Shader From Space (Atmospheric scattering)](http://stainlessbeer.weebly.com/planets-9-atmospheric-scattering.html)
  * * [Accurate Atmospheric Scattering (NVIDIA GPU Gems 2)]{@link https://developer.nvidia.com/gpugems/gpugems2/part-ii-shading-lighting-and-shadows/chapter-16-accurate-atmospheric-scattering}.
  *
  * @constructor
  * @extends GeometryLayer
  *
  * @param {string} id - The id of the layer Atmosphere.
  * @param {Object} [options] - options layer.
  * @param {number} [options.Kr] - `Kr` is the rayleigh scattering constant.
  * @param {number} [options.Km] - `Km` is the Mie scattering constant.
  * @param {number} [options.ESun] - `ESun` is the brightness of the sun.
  * @param {number} [options.g] - constant `g` that affects the symmetry of the scattering.
  * @param {number} [options.innerRadius] - The inner (planetary) radius
  * @param {number} [options.outerRadius] - The outer (Atmosphere) radius
  * @param {number[]} [options.wavelength] - The constant is the `wavelength` (or color) of light.
  * @param {number} [options.scaleDepth] - The `scale depth` (i.e. the altitude at which the atmosphere's average density is found).
  * @param {number} [options.mieScaleDepth] - not used.
  */
  function Atmosphere() {
    var _this;

    var id = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'atmosphere';
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, Atmosphere);
    options.source = false;
    _this = _super.call(this, id, new THREE.Object3D(), options);
    _this.isAtmosphere = true;
    var material = new THREE.ShaderMaterial({
      uniforms: {
        atmoIN: {
          type: 'i',
          value: 0
        },
        screenSize: {
          type: 'v2',
          value: new THREE.Vector2(window.innerWidth, window.innerHeight)
        } // Should be updated on screen resize...

      },
      vertexShader: GlowVS,
      fragmentShader: GlowFS,
      side: THREE.BackSide,
      blending: THREE.AdditiveBlending,
      transparent: true,
      wireframe: false
    });
    var sphereGeometry = new THREE.SphereGeometry(1, 64, 64);
    var basicAtmosphereOut = new THREE.Mesh(sphereGeometry, material);
    basicAtmosphereOut.scale.copy(_Ellipsoid.ellipsoidSizes).multiplyScalar(1.14);
    _this.basicAtmosphere = new THREE.Object3D();
    _this.realisticAtmosphere = new THREE.Object3D();
    _this.realisticAtmosphere.visible = false;

    _this.object3d.add(_this.basicAtmosphere);

    _this.object3d.add(_this.realisticAtmosphere);

    _this.basicAtmosphere.add(basicAtmosphereOut);

    var materialAtmoIn = new THREE.ShaderMaterial({
      uniforms: {
        atmoIN: {
          type: 'i',
          value: 1
        },
        screenSize: {
          type: 'v2',
          value: new THREE.Vector2(window.innerWidth, window.innerHeight)
        } // Should be updated on screen resize...

      },
      vertexShader: GlowVS,
      fragmentShader: GlowFS,
      side: THREE.FrontSide,
      blending: THREE.AdditiveBlending,
      transparent: true,
      depthWrite: false
    });
    var basicAtmosphereIn = new THREE.Mesh(sphereGeometry, materialAtmoIn);
    basicAtmosphereIn.scale.copy(_Ellipsoid.ellipsoidSizes).multiplyScalar(1.002);

    _this.basicAtmosphere.add(basicAtmosphereIn);

    _this.realisticLightingPosition = {
      x: -0.5,
      y: 0.0,
      z: 1.0
    };
    _this.fog = {
      enable: true,
      distance: mfogDistance
    }; // Atmosphere Shader From Space (Atmospheric scattering)
    // http://stainlessbeer.weebly.com/planets-9-atmospheric-scattering.html
    // https://developer.nvidia.com/gpugems/gpugems2/part-ii-shading-lighting-and-shadows/chapter-16-accurate-atmospheric-scattering

    _this.realisticAtmosphereInitParams = options.Kr ? options : {
      Kr: 0.0025,
      Km: 0.0015,
      ESun: 20.0,
      g: -0.950,
      innerRadius: 6400000,
      outerRadius: 6700000,
      wavelength: [0.650, 0.570, 0.475],
      scaleDepth: 0.25 // mieScaleDepth: 0.1,

    };

    _this.object3d.updateMatrixWorld();

    return _this;
  }

  (0, _createClass2["default"])(Atmosphere, [{
    key: "update",
    value: function update(context, layer, node) {
      // update uniforms
      node.material.fogDistance = this.fog.distance;
      node.material.lightingEnabled = this.realisticAtmosphere.visible;
      node.material.lightPosition = this.realisticLightingPosition;
    } // eslint-disable-next-line no-unused-vars

  }, {
    key: "preUpdate",
    value: function preUpdate(context) {
      var cameraPosition = context.view.camera.camera3D.position;

      if (this.fog.enable) {
        v.setFromMatrixPosition(context.view.tileLayer.object3d.matrixWorld);
        var len = v.distanceTo(cameraPosition); // Compute fog distance, this function makes it possible to have a shorter distance
        // when the camera approaches the ground

        this.fog.distance = mfogDistance * Math.pow((len - _Ellipsoid.ellipsoidSizes.x * 0.99) * 0.25 / _Ellipsoid.ellipsoidSizes.x, 1.5);
      } else {
        this.fog.distance = 10e10;
      }

      var renderer = context.view.mainLoop.gfxEngine.renderer; // get altitude camera

      coordCam.crs = context.view.referenceCrs;
      coordCam.setFromVector3(cameraPosition).as('EPSG:4326', coordGeoCam);
      var altitude = coordGeoCam.altitude; // If the camera altitude is below limitAlti,
      // we interpolate between the sky color and the space color

      if (altitude < limitAlti) {
        colorSky.copy(spaceColor).lerp(skyBaseColor, (limitAlti - altitude) / limitAlti);
        renderer.setClearColor(colorSky, renderer.getClearAlpha());
      } else {
        renderer.setClearColor(spaceColor, renderer.getClearAlpha());
      }
    } // default to non-realistic lightning

  }, {
    key: "_initRealisticLighning",
    value: function _initRealisticLighning() {
      var atmosphere = this.realisticAtmosphereInitParams;
      var uniformsAtmosphere = {
        v3LightPosition: {
          value: LIGHTING_POSITION.clone().normalize()
        },
        v3InvWavelength: {
          value: new THREE.Vector3(1 / Math.pow(atmosphere.wavelength[0], 4), 1 / Math.pow(atmosphere.wavelength[1], 4), 1 / Math.pow(atmosphere.wavelength[2], 4))
        },
        fCameraHeight: {
          value: 0.0
        },
        fCameraHeight2: {
          value: 0.0
        },
        fInnerRadius: {
          value: atmosphere.innerRadius
        },
        fInnerRadius2: {
          value: atmosphere.innerRadius * atmosphere.innerRadius
        },
        fOuterRadius: {
          value: atmosphere.outerRadius
        },
        fOuterRadius2: {
          value: atmosphere.outerRadius * atmosphere.outerRadius
        },
        fKrESun: {
          value: atmosphere.Kr * atmosphere.ESun
        },
        fKmESun: {
          value: atmosphere.Km * atmosphere.ESun
        },
        fKr4PI: {
          value: atmosphere.Kr * 4.0 * Math.PI
        },
        fKm4PI: {
          value: atmosphere.Km * 4.0 * Math.PI
        },
        fScale: {
          value: 1 / (atmosphere.outerRadius - atmosphere.innerRadius)
        },
        fScaleDepth: {
          value: atmosphere.scaleDepth
        },
        fScaleOverScaleDepth: {
          value: 1 / (atmosphere.outerRadius - atmosphere.innerRadius) / atmosphere.scaleDepth
        },
        g: {
          value: atmosphere.g
        },
        g2: {
          value: atmosphere.g * atmosphere.g
        },
        nSamples: {
          value: 3
        },
        fSamples: {
          value: 3.0
        },
        tDisplacement: {
          value: new THREE.Texture()
        },
        tSkyboxDiffuse: {
          value: new THREE.Texture()
        },
        fNightScale: {
          value: 1.0
        }
      };
      var geometryAtmosphereIn = new THREE.SphereGeometry(atmosphere.innerRadius, 50, 50);
      var materialAtmosphereIn = new THREE.ShaderMaterial({
        uniforms: uniformsAtmosphere,
        vertexShader: groundVS,
        fragmentShader: groundFS,
        blending: THREE.AdditiveBlending,
        transparent: true,
        depthTest: false,
        depthWrite: false
      });
      var ground = new THREE.Mesh(geometryAtmosphereIn, materialAtmosphereIn);
      var geometryAtmosphereOut = new THREE.SphereGeometry(atmosphere.outerRadius, 196, 196);
      var materialAtmosphereOut = new THREE.ShaderMaterial({
        uniforms: uniformsAtmosphere,
        vertexShader: skyVS,
        fragmentShader: skyFS,
        transparent: true,
        side: THREE.BackSide
      });
      var sky = new THREE.Mesh(geometryAtmosphereOut, materialAtmosphereOut);
      var skyDome = new _SkyShader["default"]();
      skyDome.frustumCulled = false;
      ground.layers.mask = this.object3d.layers.mask;
      sky.layers.mask = this.object3d.layers.mask;
      skyDome.layers.mask = this.object3d.layers.mask;
      this.realisticAtmosphere.add(ground);
      this.realisticAtmosphere.add(sky);
      this.realisticAtmosphere.add(skyDome);
      var effectController = {
        turbidity: 10,
        reileigh: 2,
        mieCoefficient: 0.005,
        mieDirectionalG: 0.8,
        luminance: 1,
        inclination: 0.49,
        // elevation / inclination
        azimuth: 0.25,
        // Facing front,
        sun: !true
      };
      skyDome.material.uniforms.turbidity.value = effectController.turbidity;
      skyDome.material.uniforms.reileigh.value = effectController.reileigh;
      skyDome.material.uniforms.luminance.value = effectController.luminance;
      skyDome.material.uniforms.mieCoefficient.value = effectController.mieCoefficient;
      skyDome.material.uniforms.mieDirectionalG.value = effectController.mieDirectionalG;
      skyDome.material.uniforms.up.value = new THREE.Vector3(); // no more necessary, estimate normal from cam..
    }
  }, {
    key: "setRealisticOn",
    value: function setRealisticOn(bool) {
      var _this2 = this;

      if (bool) {
        if (!this.realisticAtmosphere.children.length) {
          this._initRealisticLighning();
        }

        this.realisticLightingPosition = _CoordStars["default"].getSunPositionInScene(new Date().getTime(), 48.85, 2.35).normalize();
        this.realisticAtmosphere.children.forEach(function (obj) {
          return obj.material.uniforms.v3LightPosition.value.copy(_this2.realisticLightingPosition);
        });
      }

      this.basicAtmosphere.visible = !bool;
      this.realisticAtmosphere.visible = bool;
    }
  }]);
  return Atmosphere;
}(_GeometryLayer2["default"]);

var _default = Atmosphere;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/Globe/BuilderEllipsoidTile.js":
/*!***************************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/Globe/BuilderEllipsoidTile.js ***!
  \***************************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../../Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../../Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var PI_OV_FOUR = Math.PI / 4;
var INV_TWO_PI = 1.0 / (Math.PI * 2);
var axisZ = new THREE.Vector3(0, 0, 1);
var axisY = new THREE.Vector3(0, 1, 0);
var quatToAlignLongitude = new THREE.Quaternion();
var quatToAlignLatitude = new THREE.Quaternion();
var quatNormalToZ = new THREE.Quaternion();

function WGS84ToOneSubY(latitude) {
  return 1.0 - (0.5 - Math.log(Math.tan(PI_OV_FOUR + THREE.MathUtils.degToRad(latitude) * 0.5)) * INV_TWO_PI);
}

var BuilderEllipsoidTile = /*#__PURE__*/function () {
  function BuilderEllipsoidTile() {
    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    (0, _classCallCheck2["default"])(this, BuilderEllipsoidTile);
    this.tmp = {
      coords: [new _Coordinates["default"]('EPSG:4326', 0, 0), new _Coordinates["default"]('EPSG:4326', 0, 0)],
      position: new THREE.Vector3(),
      dimension: new THREE.Vector2()
    };
    this.crs = options.crs; // Order crs projection on tiles

    this.uvCount = options.uvCount;
    this.computeUvs = [// Normalized coordinates (from degree) on the entire tile
    // EPSG:4326
    function () {}, // Float row coordinate from Pseudo mercator coordinates
    // EPSG:3857
    function (params) {
      var t = WGS84ToOneSubY(params.projected.latitude) * params.nbRow;
      return (!isFinite(t) ? 0 : t) - params.deltaUV1;
    }];
  } // prepare params
  // init projected object -> params.projected


  (0, _createClass2["default"])(BuilderEllipsoidTile, [{
    key: "prepare",
    value: function prepare(params) {
      params.nbRow = Math.pow(2, params.level + 1.0);
      var st1 = WGS84ToOneSubY(params.extent.south);

      if (!isFinite(st1)) {
        st1 = 0;
      }

      var sizeTexture = 1.0 / params.nbRow;
      var start = st1 % sizeTexture;
      params.deltaUV1 = (st1 - start) * params.nbRow; // transformation to align tile's normal to z axis

      params.quatNormalToZ = quatNormalToZ.setFromAxisAngle(axisY, -(Math.PI * 0.5 - THREE.MathUtils.degToRad(params.extent.center().latitude))); // let's avoid building too much temp objects

      params.projected = {
        longitude: 0,
        latitude: 0
      };
      params.extent.planarDimensions(this.tmp.dimension);
    } // get center tile in cartesian 3D

  }, {
    key: "center",
    value: function center(extent) {
      return extent.center(this.tmp.coords[0]).as(this.crs, this.tmp.coords[1]).toVector3();
    } // get position 3D cartesian

  }, {
    key: "vertexPosition",
    value: function vertexPosition(params) {
      this.tmp.coords[0].setFromValues(params.projected.longitude, params.projected.latitude);
      this.tmp.coords[0].as(this.crs, this.tmp.coords[1]).toVector3(this.tmp.position);
      return this.tmp.position;
    } // get normal for last vertex

  }, {
    key: "vertexNormal",
    value: function vertexNormal() {
      return this.tmp.coords[1].geodesicNormal;
    } // coord u tile to projected

  }, {
    key: "uProjecte",
    value: function uProjecte(u, params) {
      params.projected.longitude = params.extent.west + u * this.tmp.dimension.x;
    } // coord v tile to projected

  }, {
    key: "vProjecte",
    value: function vProjecte(v, params) {
      params.projected.latitude = params.extent.south + v * this.tmp.dimension.y;
    }
  }, {
    key: "computeSharableExtent",
    value: function computeSharableExtent(extent) {
      // Compute sharable extent to pool the geometries
      // the geometry in common extent is identical to the existing input
      // with a transformation (translation, rotation)
      // TODO: It should be possible to use equatorial plan symetrie,
      // but we should be reverse UV on tile
      // Common geometry is looking for only on longitude
      var sizeLongitude = Math.abs(extent.west - extent.east) / 2;
      var sharableExtent = new _Extent["default"](extent.crs, -sizeLongitude, sizeLongitude, extent.south, extent.north); // compute rotation to transform tile to position it on ellipsoid
      // this transformation take into account the transformation of the parents

      var rotLon = THREE.MathUtils.degToRad(extent.west - sharableExtent.west);
      var rotLat = THREE.MathUtils.degToRad(90 - extent.center(this.tmp.coords[0]).latitude);
      quatToAlignLongitude.setFromAxisAngle(axisZ, rotLon);
      quatToAlignLatitude.setFromAxisAngle(axisY, rotLat);
      quatToAlignLongitude.multiply(quatToAlignLatitude);
      return {
        sharableExtent: sharableExtent,
        quaternion: quatToAlignLongitude.clone(),
        position: this.center(extent)
      };
    }
  }]);
  return BuilderEllipsoidTile;
}();

var _default = BuilderEllipsoidTile;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/Globe/GlobeLayer.js":
/*!*****************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/Globe/GlobeLayer.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _TiledGeometryLayer2 = _interopRequireDefault(__webpack_require__(/*! ../../../Layer/TiledGeometryLayer */ "./node_modules/itowns/lib/Layer/TiledGeometryLayer.js"));

var _Ellipsoid = __webpack_require__(/*! ../../Math/Ellipsoid */ "./node_modules/itowns/lib/Core/Math/Ellipsoid.js");

var _Extent = __webpack_require__(/*! ../../Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js");

var _BuilderEllipsoidTile = _interopRequireDefault(__webpack_require__(/*! ./BuilderEllipsoidTile */ "./node_modules/itowns/lib/Core/Prefab/Globe/BuilderEllipsoidTile.js"));

var _LayeredMaterialNodeProcessing = __webpack_require__(/*! ../../../Process/LayeredMaterialNodeProcessing */ "./node_modules/itowns/lib/Process/LayeredMaterialNodeProcessing.js");

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../../Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

// matrix to convert sphere to ellipsoid
var worldToScaledEllipsoid = new THREE.Matrix4(); // camera's position in worldToScaledEllipsoid system

var cameraPosition = new THREE.Vector3();
var magnitudeSquared = 0.0; // vectors for operation purpose

var scaledHorizonCullingPoint = new THREE.Vector3();
/**
 * @property {boolean} isGlobeLayer - Used to checkout whether this layer is a
 * GlobeLayer. Default is true. You should not change this, as it is used
 * internally for optimisation.
 */

var GlobeLayer = /*#__PURE__*/function (_TiledGeometryLayer) {
  (0, _inherits2["default"])(GlobeLayer, _TiledGeometryLayer);

  var _super = _createSuper(GlobeLayer);

  /**
   * A {@link TiledGeometryLayer} to use with a {@link GlobeView}. It has
   * specific method for updating and subdivising its grid.
   *
   * @constructor
   * @extends TiledGeometryLayer
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {THREE.Object3d} [object3d=THREE.Group] - The object3d used to
   * contain the geometry of the TiledGeometryLayer. It is usually a
   * `THREE.Group`, but it can be anything inheriting from a `THREE.Object3d`.
   * @param {Object} [config] - Optional configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name.
   * @param {number} [config.minSubdivisionLevel=2] - Minimum subdivision
   * level for this tiled layer.
   * @param {number} [config.maxSubdivisionLevel=18] - Maximum subdivision
   * level for this tiled layer.
   * @param {number} [config.sseSubdivisionThreshold=1] - Threshold level for
   * the SSE.
   * @param {number} [config.maxDeltaElevationLevel=4] - Maximum delta between
   * two elevations tile.
   *
   * @throws {Error} `object3d` must be a valid `THREE.Object3d`.
   */
  function GlobeLayer(id, object3d) {
    var _this;

    var config = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    (0, _classCallCheck2["default"])(this, GlobeLayer);

    // Configure tiles
    var scheme = _Extent.schemeTiles.get(_Crs["default"].tms_4326);

    var schemeTile = _Extent.globalExtentTMS.get('EPSG:4326').subdivisionByScheme(scheme); // Supported tile matrix set for color/elevation layer


    config.tileMatrixSets = [_Crs["default"].tms_4326, _Crs["default"].tms_3857];
    var uvCount = config.tileMatrixSets.length;
    var builder = new _BuilderEllipsoidTile["default"]({
      crs: 'EPSG:4978',
      uvCount: uvCount
    });
    _this = _super.call(this, id, object3d || new THREE.Group(), schemeTile, builder, config);
    _this.isGlobeLayer = true;
    _this.options.defaultPickingRadius = 5;
    _this.minSubdivisionLevel = _this.minSubdivisionLevel == undefined ? 2 : _this.minSubdivisionLevel;
    _this.maxSubdivisionLevel = _this.maxSubdivisionLevel == undefined ? 19 : _this.maxSubdivisionLevel;
    _this.maxDeltaElevation = _this.maxDeltaElevation || 4.0;
    _this.extent = _this.schemeTile[0].clone();

    for (var i = 1; i < _this.schemeTile.length; i++) {
      _this.extent.union(_this.schemeTile[i]);
    } // We're going to use the method described here:
    //    https://cesiumjs.org/2013/04/25/Horizon-culling/
    // This method assumes that the globe is a unit sphere at 0,0,0 so
    // we setup a world-to-scaled-ellipsoid matrix4


    worldToScaledEllipsoid.copy(_this.object3d.matrixWorld).invert();
    worldToScaledEllipsoid.premultiply(new THREE.Matrix4().makeScale(1 / _Ellipsoid.ellipsoidSizes.x, 1 / _Ellipsoid.ellipsoidSizes.y, 1 / _Ellipsoid.ellipsoidSizes.z));
    return _this;
  }

  (0, _createClass2["default"])(GlobeLayer, [{
    key: "preUpdate",
    value: function preUpdate(context, changeSources) {
      // pre-horizon culling
      cameraPosition.copy(context.camera.camera3D.position).applyMatrix4(worldToScaledEllipsoid);
      magnitudeSquared = cameraPosition.lengthSq() - 1.0;
      return (0, _get2["default"])((0, _getPrototypeOf2["default"])(GlobeLayer.prototype), "preUpdate", this).call(this, context, changeSources);
    }
  }, {
    key: "countColorLayersTextures",
    value: function countColorLayersTextures() {
      var occupancy = 0;

      for (var _len = arguments.length, layers = new Array(_len), _key = 0; _key < _len; _key++) {
        layers[_key] = arguments[_key];
      }

      for (var _i = 0, _layers = layers; _i < _layers.length; _i++) {
        var layer = _layers[_i];
        var crs = layer.crs || layer.source.crs; // 'EPSG:3857' occupies the maximum 3 textures on tiles
        // 'EPSG:4326' occupies 1 textures on tile

        occupancy += crs == 'EPSG:3857' ? 3 : 1;
      }

      return occupancy;
    }
  }, {
    key: "subdivision",
    value: function subdivision(context, layer, node) {
      if (node.level == 5) {
        var row = node.getExtentsByProjection(_Crs["default"].tms_4326)[0].row;

        if (row == 31 || row == 0) {
          // doesn't subdivise the pole
          return false;
        }
      }

      return (0, _get2["default"])((0, _getPrototypeOf2["default"])(GlobeLayer.prototype), "subdivision", this).call(this, context, layer, node);
    }
  }, {
    key: "culling",
    value: function culling(node, camera) {
      if ((0, _get2["default"])((0, _getPrototypeOf2["default"])(GlobeLayer.prototype), "culling", this).call(this, node, camera)) {
        return true;
      }

      if (node.level < this.minSubdivisionLevel) {
        return false;
      }

      return this.horizonCulling(node.horizonCullingPointElevationScaled);
    }
  }, {
    key: "horizonCulling",
    value: function horizonCulling(point) {
      // see https://cesiumjs.org/2013/04/25/Horizon-culling/
      scaledHorizonCullingPoint.copy(point).applyMatrix4(worldToScaledEllipsoid);
      scaledHorizonCullingPoint.sub(cameraPosition);
      var vtMagnitudeSquared = scaledHorizonCullingPoint.lengthSq();
      var dot = -scaledHorizonCullingPoint.dot(cameraPosition);
      var isOccluded = magnitudeSquared < 0 ? dot > 0 : magnitudeSquared < dot && magnitudeSquared < dot * dot / vtMagnitudeSquared;
      return isOccluded;
    }
  }, {
    key: "computeTileZoomFromDistanceCamera",
    value: function computeTileZoomFromDistanceCamera(distance, camera) {
      var preSinus = _LayeredMaterialNodeProcessing.SIZE_DIAGONAL_TEXTURE * (this.sseSubdivisionThreshold * 0.5) / camera._preSSE / _Ellipsoid.ellipsoidSizes.x;
      var sinus = distance * preSinus;
      var zoom = Math.log(Math.PI / (2.0 * Math.asin(sinus))) / Math.log(2);
      var delta = Math.PI / Math.pow(2, zoom);
      var circleChord = 2.0 * _Ellipsoid.ellipsoidSizes.x * Math.sin(delta * 0.5);
      // adjust with bounding sphere rayon
      sinus = (distance - circleChord * 0.5) * preSinus;
      zoom = Math.log(Math.PI / (2.0 * Math.asin(sinus))) / Math.log(2);
      return isNaN(zoom) ? 0 : Math.round(zoom);
    }
  }, {
    key: "computeDistanceCameraFromTileZoom",
    value: function computeDistanceCameraFromTileZoom(zoom, camera) {
      var delta = Math.PI / Math.pow(2, zoom);
      var circleChord = 2.0 * _Ellipsoid.ellipsoidSizes.x * Math.sin(delta * 0.5);
      var radius = circleChord * 0.5;
      return camera._preSSE * (radius / _LayeredMaterialNodeProcessing.SIZE_DIAGONAL_TEXTURE) / (this.sseSubdivisionThreshold * 0.5) + radius;
    }
  }]);
  return GlobeLayer;
}(_TiledGeometryLayer2["default"]);

var _default = GlobeLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/Globe/SkyShader.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/Globe/SkyShader.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var skyShader = {
  uniforms: {
    luminance: {
      type: 'f',
      value: 1
    },
    turbidity: {
      type: 'f',
      value: 2
    },
    reileigh: {
      type: 'f',
      value: 1
    },
    mieCoefficient: {
      type: 'f',
      value: 0.005
    },
    mieDirectionalG: {
      type: 'f',
      value: 0.8
    },
    v3LightPosition: {
      type: 'v3',
      value: new THREE.Vector3()
    },
    up: {
      type: 'v3',
      value: new THREE.Vector3(0.0, 1.0, 0.0)
    }
  },
  vertexShader: ['varying vec3 vWorldPosition;', 'void main() {', 'vec4 worldPosition = modelMatrix *  vec4( cameraPosition + position, 1.0 );', 'vWorldPosition = worldPosition.xyz;', 'gl_Position = projectionMatrix * modelViewMatrix * vec4( cameraPosition + position, 1.0 );', '}'].join('\n'),
  fragmentShader: ['uniform sampler2D skySampler;', 'uniform vec3 v3LightPosition;', 'uniform vec3 up;', 'varying vec3 vWorldPosition;', // "vec3 cameraPos = cameraPosition; //vec3(0., 0., 0.);",
  '// uniform sampler2D sDiffuse;', '// const float turbidity = 10.0; //', '// const float reileigh = 2.; //', '// const float luminance = 1.0; //', '// const float mieCoefficient = 0.005;', '// const float mieDirectionalG = 0.8;', 'uniform float luminance;', 'uniform float turbidity;', 'uniform float reileigh;', 'uniform float mieCoefficient;', 'uniform float mieDirectionalG;', '// constants for atmospheric scattering', 'const float e = 2.71828182845904523536028747135266249775724709369995957;', 'const float pi = 3.141592653589793238462643383279502884197169;', 'const float n = 1.0003; // refractive index of air', 'const float N = 2.545E25; // number of molecules per unit volume for air at', '// 288.15K and 1013mb (sea level -45 celsius)', 'const float pn = 0.035; // depolatization factor for standard air', '// wavelength of used primaries, according to preetham', 'const vec3 lambda = vec3(680E-9, 550E-9, 450E-9);', '// mie stuff', '// K coefficient for the primaries', 'const vec3 K = vec3(0.686, 0.678, 0.666);', 'const float v = 4.0;', '// optical length at zenith for molecules', 'const float rayleighZenithLength = 8.4E3;', 'const float mieZenithLength = 1.25E3;', // "const vec3 up = vec3(0.0, 1.0, 0.0);",
  'const float EE = 1000.0;', 'const float sunAngularDiameterCos = 0.999956676946448443553574619906976478926848692873900859324;', '// 66 arc seconds -> degrees, and the cosine of that', '// earth shadow hack', 'const float cutoffAngle = pi/1.95;', 'const float steepness = 1.5;', 'vec3 totalRayleigh(vec3 lambda)', '{', 'return (8.0 * pow(pi, 3.0) * pow(pow(n, 2.0) - 1.0, 2.0) * (6.0 + 3.0 * pn)) / (3.0 * N * pow(lambda, vec3(4.0)) * (6.0 - 7.0 * pn));', '}', // see http://blenderartists.org/forum/showthread.php?321110-Shaders-and-Skybox-madness
  '// A simplied version of the total Reayleigh scattering to works on browsers that use ANGLE', 'vec3 simplifiedRayleigh()', '{', 'return 0.0005 / vec3(94, 40, 18);', // return 0.00054532832366 / (3.0 * 2.545E25 * pow(vec3(680E-9, 550E-9, 450E-9), vec3(4.0)) * 6.245);
  '}', 'float rayleighPhase(float cosTheta)', '{ ', 'return (3.0 / (16.0*pi)) * (1.0 + pow(cosTheta, 2.0));', '// return (1.0 / (3.0*pi)) * (1.0 + pow(cosTheta, 2.0));', '// return (3.0 / 4.0) * (1.0 + pow(cosTheta, 2.0));', '}', 'vec3 totalMie(vec3 lambda, vec3 K, float T)', '{', 'float c = (0.2 * T ) * 10E-18;', 'return 0.434 * c * pi * pow((2.0 * pi) / lambda, vec3(v - 2.0)) * K;', '}', 'float hgPhase(float cosTheta, float g)', '{', 'return (1.0 / (4.0*pi)) * ((1.0 - pow(g, 2.0)) / pow(1.0 - 2.0*g*cosTheta + pow(g, 2.0), 1.5));', '}', 'float sunIntensity(float zenithAngleCos)', '{', 'return EE * max(0.0, 1.0 - exp(-((cutoffAngle - acos(zenithAngleCos))/steepness)));', '}', '// float logLuminance(vec3 c)', '// {', '//     return log(c.r * 0.2126 + c.g * 0.7152 + c.b * 0.0722);', '// }', '// Filmic ToneMapping http://filmicgames.com/archives/75', 'float A = 0.15;', 'float B = 0.50;', 'float C = 0.10;', 'float D = 0.20;', 'float E = 0.02;', 'float F = 0.30;', 'float W = 1000.0;', 'vec3 Uncharted2Tonemap(vec3 x)', '{', 'return ((x*(A*x+C*B)+D*E)/(x*(A*x+B)+D*F))-E/F;', '}', 'void main() ', '{', 'vec3 up2 = normalize(cameraPosition.xyz);', 'float sunfade = 1.0-clamp(1.0-exp((v3LightPosition.y/450000.0)),0.0,1.0);', 'float reileighCoefficient = reileigh - (1.0* (1.0-sunfade));', 'vec3 sunDirection = normalize(v3LightPosition);', 'float sunE = sunIntensity(dot(sunDirection, up2));', '// extinction (absorbtion + out scattering) ', '// rayleigh coefficients', // "vec3 betaR = totalRayleigh(lambda) * reileighCoefficient;",
  'vec3 betaR = simplifiedRayleigh() * reileighCoefficient;', '// mie coefficients', 'vec3 betaM = totalMie(lambda, K, turbidity) * mieCoefficient;', '// optical length', '// cutoff angle at 90 to avoid singularity in next formula.', 'float zenithAngle = acos(max(0.0, dot(up2, normalize(vWorldPosition - cameraPosition))));', 'float sR = rayleighZenithLength / (cos(zenithAngle) + 0.15 * pow(93.885 - ((zenithAngle * 180.0) / pi), -1.253));', 'float sM = mieZenithLength / (cos(zenithAngle) + 0.15 * pow(93.885 - ((zenithAngle * 180.0) / pi), -1.253));', '// combined extinction factor', 'vec3 Fex = exp(-(betaR * sR + betaM * sM));', '// in scattering', 'float cosTheta = dot(normalize(vWorldPosition - cameraPosition), sunDirection);', 'float rPhase = rayleighPhase(cosTheta*0.5+0.5);', 'vec3 betaRTheta = betaR * rPhase;', 'float mPhase = hgPhase(cosTheta, mieDirectionalG);', 'vec3 betaMTheta = betaM * mPhase;', 'vec3 Lin = pow(sunE * ((betaRTheta + betaMTheta) / (betaR + betaM)) * (1.0 - Fex),vec3(1.5));', 'Lin *= mix(vec3(1.0),pow(sunE * ((betaRTheta + betaMTheta) / (betaR + betaM)) * Fex,vec3(1.0/2.0)),clamp(pow(1.0-dot(up2, sunDirection),5.0),0.0,1.0));', '//nightsky', 'vec3 direction = normalize(vWorldPosition - cameraPosition);', 'float theta = acos(direction.y); // elevation --> y-axis, [-pi/2, pi/2]', 'float phi = atan(direction.z, direction.x); // azimuth --> x-axis [-pi/2, pi/2]', 'vec2 uv = vec2(phi, theta) / vec2(2.0*pi, pi) + vec2(0.5, 0.0);', '// vec3 L0 = texture2D(skySampler, uv).rgb+0.1 * Fex;', 'vec3 L0 = vec3(0.1) * Fex;', '// composition + solar disc', '//if (cosTheta > sunAngularDiameterCos)', 'float sundisk = smoothstep(sunAngularDiameterCos,sunAngularDiameterCos+0.00002,cosTheta);', '// if (normalize(vWorldPosition - cameraPosition).y>0.0)', 'L0 += (sunE * 19000.0 * Fex)*sundisk;', 'vec3 whiteScale = 1.0/Uncharted2Tonemap(vec3(W));', 'vec3 texColor = (Lin+L0);   ', 'texColor *= 0.04 ;', 'texColor += vec3(0.0,0.001,0.0025)*0.3;', 'float g_fMaxLuminance = 1.0;', 'float fLumScaled = 0.1 / luminance;     ', 'float fLumCompressed = (fLumScaled * (1.0 + (fLumScaled / (g_fMaxLuminance * g_fMaxLuminance)))) / (1.0 + fLumScaled); ', 'float ExposureBias = fLumCompressed;', 'vec3 curr = Uncharted2Tonemap((log2(2.0/pow(luminance,4.0)))*texColor);', 'vec3 color = curr*whiteScale;', 'vec3 retColor = pow(color,vec3(1.0/(1.2+(1.2*sunfade))));', 'gl_FragColor.rgb = retColor;', 'gl_FragColor.a = 1. - ( (length(cameraPosition) - 6400000.) / 1000.);', '}'].join('\n')
};

var Sky = /*#__PURE__*/function (_THREE$Mesh) {
  (0, _inherits2["default"])(Sky, _THREE$Mesh);

  var _super = _createSuper(Sky);

  function Sky() {
    (0, _classCallCheck2["default"])(this, Sky);
    var skyUniforms = THREE.UniformsUtils.clone(skyShader.uniforms);
    var skyMat = new THREE.ShaderMaterial({
      fragmentShader: skyShader.fragmentShader,
      vertexShader: skyShader.vertexShader,
      uniforms: skyUniforms,
      side: THREE.BackSide,
      transparent: true,
      depthWrite: false
    });
    var skyGeo = new THREE.SphereBufferGeometry(40000, 32, 15);
    return _super.call(this, skyGeo, skyMat);
  }

  return (0, _createClass2["default"])(Sky);
}(THREE.Mesh);

var _default = Sky;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/GlobeView.js":
/*!**********************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/GlobeView.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.GLOBE_VIEW_EVENTS = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _View2 = _interopRequireWildcard(__webpack_require__(/*! ../View */ "./node_modules/itowns/lib/Core/View.js"));

var _GlobeControls = _interopRequireDefault(__webpack_require__(/*! ../../Controls/GlobeControls */ "./node_modules/itowns/lib/Controls/GlobeControls.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _GlobeLayer = _interopRequireDefault(__webpack_require__(/*! ./Globe/GlobeLayer */ "./node_modules/itowns/lib/Core/Prefab/Globe/GlobeLayer.js"));

var _Atmosphere = _interopRequireDefault(__webpack_require__(/*! ./Globe/Atmosphere */ "./node_modules/itowns/lib/Core/Prefab/Globe/Atmosphere.js"));

var _CameraUtils = _interopRequireDefault(__webpack_require__(/*! ../../Utils/CameraUtils */ "./node_modules/itowns/lib/Utils/CameraUtils.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

var _Ellipsoid = __webpack_require__(/*! ../Math/Ellipsoid */ "./node_modules/itowns/lib/Core/Math/Ellipsoid.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * Fires when the view is completely loaded. Controls and view's functions can be called then.
 * @event GlobeView#initialized
 * @property target {view} dispatched on view
 * @property type {string} initialized
 */

/**
 * Fires when a layer is added
 * @event GlobeView#layer-added
 * @property layerId {string} the id of the layer
 * @property target {view} dispatched on view
 * @property type {string} layers-added
 */

/**
 * Fires when a layer is removed
 * @event GlobeView#layer-removed
 * @property layerId {string} the id of the layer
 * @property target {view} dispatched on view
 * @property type {string} layers-added
 */

/**
 * Fires when the layers oder has changed
 * @event GlobeView#layers-order-changed
 * @property new {object}
 * @property new.sequence {array}
 * @property new.sequence.0 {number} the new layer at position 0
 * @property new.sequence.1 {number} the new layer at position 1
 * @property new.sequence.2 {number} the new layer at position 2
 * @property previous {object}
 * @property previous.sequence {array}
 * @property previous.sequence.0 {number} the previous layer at position 0
 * @property previous.sequence.1 {number} the previous layer at position 1
 * @property previous.sequence.2 {number} the previous layer at position 2
 * @property target {view} dispatched on view
 * @property type {string} layers-order-changed
 */

/**
 * Globe's EVENT
 * @property GLOBE_INITIALIZED {string} Deprecated: emit one time when globe is initialized (use VIEW_EVENTS.INITIALIZED instead).
 * @property LAYER_ADDED {string} Deprecated: emit when layer id added in viewer (use VIEW_EVENTS.LAYER_ADDED instead).
 * @property LAYER_REMOVED {string} Deprecated: emit when layer id removed in viewer (use VIEW_EVENTS.LAYER_REMOVED instead).
 * @property COLOR_LAYERS_ORDER_CHANGED {string} Deprecated: emit when  color layers order change (use VIEW_EVENTS.COLOR_LAYERS_ORDER_CHANGED instead).
 */
var GLOBE_VIEW_EVENTS = {
  GLOBE_INITIALIZED: _View2.VIEW_EVENTS.INITIALIZED,
  LAYER_ADDED: _View2.VIEW_EVENTS.LAYER_ADDED,
  LAYER_REMOVED: _View2.VIEW_EVENTS.LAYER_REMOVED,
  COLOR_LAYERS_ORDER_CHANGED: _View2.VIEW_EVENTS.COLOR_LAYERS_ORDER_CHANGED
};
exports.GLOBE_VIEW_EVENTS = GLOBE_VIEW_EVENTS;

var GlobeView = /*#__PURE__*/function (_View) {
  (0, _inherits2["default"])(GlobeView, _View);

  var _super = _createSuper(GlobeView);

  /**
   * Creates a view of a globe.
   *
   * @constructor
   * @extends View
   *
   * @example <caption><b>Instance GlobeView.</b></caption>
   * var viewerDiv = document.getElementById('viewerDiv');
   * const placement = {
   *     coord: new itowns.Coordinates('EPSG:4326', 2.351323, 48.856712),
   *     range: 25000000,
   * }
   * var view = new itowns.GlobeView(viewerDiv, placement);
   *
   * @example <caption><b>Enable WebGl 1.0 instead of WebGl 2.0.</b></caption>
   * var viewerDiv = document.getElementById('viewerDiv');
   * const placement = {
   *     coord: new itowns.Coordinates('EPSG:4326', 2.351323, 48.856712),
   *     range: 25000000,
   * }
   * var view = new itowns.GlobeView(viewerDiv, placement, {  renderer: { isWebGL2: false } });
   *
   * @param {HTMLDivElement} viewerDiv - Where to attach the view and display it
   * in the DOM.
   * @param {CameraTransformOptions|Extent} placement - An object to place view
   * @param {object=} options - See options of {@link View}.
   */
  function GlobeView(viewerDiv) {
    var _this;

    var placement = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    (0, _classCallCheck2["default"])(this, GlobeView);
    THREE.Object3D.DefaultUp.set(0, 0, 1); // Setup View

    _this = _super.call(this, 'EPSG:4978', viewerDiv, options);
    _this.isGlobeView = true;
    _this.camera.camera3D.near = Math.max(15.0, 0.000002352 * _Ellipsoid.ellipsoidSizes.x);
    _this.camera.camera3D.far = _Ellipsoid.ellipsoidSizes.x * 10;
    var tileLayer = new _GlobeLayer["default"]('globe', options.object3d, options);
    _this.mainLoop.gfxEngine.label2dRenderer.infoTileLayer = tileLayer.info;
    var sun = new THREE.DirectionalLight();
    sun.position.set(-0.5, 0, 1);
    sun.updateMatrixWorld(true);
    tileLayer.object3d.add(sun);

    _this.addLayer(tileLayer);

    _this.tileLayer = tileLayer;

    if (!placement.isExtent) {
      placement.coord = placement.coord || new _Coordinates["default"]('EPSG:4326', 0, 0);
      placement.tilt = placement.tilt || 89.5;
      placement.heading = placement.heading || 0;
      placement.range = placement.range || _Ellipsoid.ellipsoidSizes.x * 2.0;
    }

    if (options.noControls) {
      _CameraUtils["default"].transformCameraToLookAtTarget((0, _assertThisInitialized2["default"])(_this), _this.camera.camera3D, placement);
    } else {
      _this.controls = new _GlobeControls["default"]((0, _assertThisInitialized2["default"])(_this), placement);
      _this.controls.handleCollision = typeof options.handleCollision !== 'undefined' ? options.handleCollision : true;
    }

    _this.addLayer(new _Atmosphere["default"]('atmosphere', options.atmosphere)); // GlobeView needs this.camera.resize to set perpsective matrix camera


    _this.camera.resize(viewerDiv.clientWidth, viewerDiv.clientHeight);

    return _this;
  }
  /**
   * Add layer in viewer.
   * The layer id must be unique.
   *
   * The `layer.whenReady` is a promise that resolves when
   * the layer is done. This promise is also returned by
   * `addLayer` allowing to chain call.
   *
   * The layer added is attached, by default to `GlobeLayer` (`GlobeView.tileLayer`).
   * If you want add a unattached layer use `View#addLayer` parent method.
   *
   * @param {LayerOptions|Layer|GeometryLayer} layer The layer to add in view.
   * @return {Promise} a promise resolved with the new layer object when it is fully initialized or rejected if any error occurred.
   */


  (0, _createClass2["default"])(GlobeView, [{
    key: "addLayer",
    value: function addLayer(layer) {
      if (!layer || !layer.isLayer) {
        return Promise.reject(new Error('Add Layer type object'));
      }

      if (layer.isColorLayer) {
        if (!this.tileLayer.tileMatrixSets.includes(_Crs["default"].formatToTms(layer.source.crs))) {
          return layer._reject("Only ".concat(this.tileLayer.tileMatrixSets, " tileMatrixSet are currently supported for color layers"));
        }
      } else if (layer.isElevationLayer) {
        if (_Crs["default"].formatToTms(layer.source.crs) !== this.tileLayer.tileMatrixSets[0]) {
          return layer._reject("Only ".concat(this.tileLayer.tileMatrixSets[0], " tileMatrixSet is currently supported for elevation layers"));
        }
      }

      return (0, _get2["default"])((0, _getPrototypeOf2["default"])(GlobeView.prototype), "addLayer", this).call(this, layer, this.tileLayer);
    }
  }, {
    key: "getPixelsToDegrees",
    value: function getPixelsToDegrees() {
      var pixels = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
      var screenCoord = arguments.length > 1 ? arguments[1] : undefined;
      return this.getMetersToDegrees(this.getPixelsToMeters(pixels, screenCoord));
    }
  }, {
    key: "getPixelsToDegreesFromDistance",
    value: function getPixelsToDegreesFromDistance() {
      var pixels = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
      var distance = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
      return this.getMetersToDegrees(this.getPixelsToMetersFromDistance(pixels, distance));
    }
  }, {
    key: "getMetersToDegrees",
    value: function getMetersToDegrees() {
      var meters = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
      return THREE.MathUtils.radToDeg(2 * Math.asin(meters / (2 * _Ellipsoid.ellipsoidSizes.x)));
    }
  }]);
  return GlobeView;
}(_View2["default"]);

var _default = GlobeView;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/Planar/PlanarLayer.js":
/*!*******************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/Planar/PlanarLayer.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _TiledGeometryLayer2 = _interopRequireDefault(__webpack_require__(/*! ../../../Layer/TiledGeometryLayer */ "./node_modules/itowns/lib/Layer/TiledGeometryLayer.js"));

var _Extent = __webpack_require__(/*! ../../Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js");

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../../Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

var _PlanarTileBuilder = _interopRequireDefault(__webpack_require__(/*! ./PlanarTileBuilder */ "./node_modules/itowns/lib/Core/Prefab/Planar/PlanarTileBuilder.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @property {boolean} isPlanarLayer - Used to checkout whether this layer is a
 * PlanarLayer. Default is true. You should not change this, as it is used
 * internally for optimisation.
 */
var PlanarLayer = /*#__PURE__*/function (_TiledGeometryLayer) {
  (0, _inherits2["default"])(PlanarLayer, _TiledGeometryLayer);

  var _super = _createSuper(PlanarLayer);

  /**
   * A {@link TiledGeometryLayer} to use with a {@link PlanarView}. It has
   * specific method for updating and subdivising its grid.
   *
   * @constructor
   * @extends TiledGeometryLayer
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {Extent} extent - The extent to define the layer within.
   * @param {THREE.Object3d} [object3d=THREE.Group] - The object3d used to
   * contain the geometry of the TiledGeometryLayer. It is usually a
   * `THREE.Group`, but it can be anything inheriting from a `THREE.Object3d`.
   * @param {Object} [config] - Optional configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name.
   * @param {number} [config.maxSubdivisionLevel=5] - Maximum subdivision
   * level for this tiled layer.
   * @param {number} [config.maxDeltaElevationLevel=4] - Maximum delta between
   * two elevations tile.
   *
   * @throws {Error} `object3d` must be a valid `THREE.Object3d`.
   */
  function PlanarLayer(id, extent, object3d) {
    var _this;

    var config = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
    (0, _classCallCheck2["default"])(this, PlanarLayer);

    var tms = _Crs["default"].formatToTms(extent.crs);

    if (!_Extent.globalExtentTMS.get(extent.crs)) {
      // Add new global extent for this new crs projection.
      _Extent.globalExtentTMS.set(extent.crs, extent);
    }

    config.tileMatrixSets = [tms];
    _this = _super.call(this, id, object3d || new THREE.Group(), [extent], new _PlanarTileBuilder["default"]({
      crs: extent.crs
    }), config);
    _this.isPlanarLayer = true;
    _this.extent = extent;
    _this.minSubdivisionLevel = _this.minSubdivisionLevel == undefined ? 0 : _this.minSubdivisionLevel;
    _this.maxSubdivisionLevel = _this.maxSubdivisionLevel == undefined ? 5 : _this.maxSubdivisionLevel;
    _this.maxDeltaElevation = _this.maxDeltaElevation || 4.0;
    return _this;
  }

  return (0, _createClass2["default"])(PlanarLayer);
}(_TiledGeometryLayer2["default"]);

var _default = PlanarLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/Planar/PlanarTileBuilder.js":
/*!*************************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/Planar/PlanarTileBuilder.js ***!
  \*************************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../../Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../../Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var quaternion = new THREE.Quaternion();

var _center = new THREE.Vector3();

var PlanarTileBuilder = /*#__PURE__*/function () {
  function PlanarTileBuilder() {
    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    (0, _classCallCheck2["default"])(this, PlanarTileBuilder);

    /* istanbul ignore next */
    if (options.projection) {
      console.warn('PlanarTileBuilder projection parameter is deprecated, use crs instead.');
      options.crs = options.crs || options.projection;
    }

    if (options.crs) {
      this.crs = options.crs;
    } else {
      throw new Error('options.crs is mandatory for PlanarTileBuilder');
    }

    this.tmp = {
      coords: new _Coordinates["default"]('EPSG:4326', 0, 0),
      position: new THREE.Vector3(),
      normal: new THREE.Vector3(0, 0, 1)
    };
    this.uvCount = options.uvCount || 1;
  } // prepare params
  // init projected object -> params.projected


  (0, _createClass2["default"])(PlanarTileBuilder, [{
    key: "prepare",
    value: function prepare(params) {
      params.nbRow = Math.pow(2, params.zoom + 1.0);
      params.projected = new THREE.Vector3();
    } // get center tile in cartesian 3D

  }, {
    key: "center",
    value: function center(extent) {
      extent.center(this.tmp.coords);

      _center.set(this.tmp.coords.x, this.tmp.coords.y, 0);

      return _center;
    } // get position 3D cartesian

  }, {
    key: "vertexPosition",
    value: function vertexPosition(params) {
      this.tmp.position.set(params.projected.x, params.projected.y, 0);
      return this.tmp.position;
    } // get normal for last vertex

  }, {
    key: "vertexNormal",
    value: function vertexNormal() {
      return this.tmp.normal;
    } // coord u tile to projected

  }, {
    key: "uProjecte",
    value: function uProjecte(u, params) {
      params.projected.x = params.extent.west + u * (params.extent.east - params.extent.west);
    } // coord v tile to projected

  }, {
    key: "vProjecte",
    value: function vProjecte(v, params) {
      params.projected.y = params.extent.south + v * (params.extent.north - params.extent.south);
    }
  }, {
    key: "computeSharableExtent",
    value: function computeSharableExtent(extent) {
      // compute sharable extent to pool the geometries
      // the geometry in common extent is identical to the existing input
      // with a translation
      var sharableExtent = new _Extent["default"](extent.crs, 0, Math.abs(extent.west - extent.east), 0, Math.abs(extent.north - extent.south));
      return {
        sharableExtent: sharableExtent,
        quaternion: quaternion,
        position: this.center(extent).clone()
      };
    }
  }]);
  return PlanarTileBuilder;
}();

var _default = PlanarTileBuilder;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/PlanarView.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/PlanarView.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _View2 = _interopRequireDefault(__webpack_require__(/*! ../View */ "./node_modules/itowns/lib/Core/View.js"));

var _CameraUtils = _interopRequireDefault(__webpack_require__(/*! ../../Utils/CameraUtils */ "./node_modules/itowns/lib/Utils/CameraUtils.js"));

var _PlanarControls = _interopRequireDefault(__webpack_require__(/*! ../../Controls/PlanarControls */ "./node_modules/itowns/lib/Controls/PlanarControls.js"));

var _PlanarLayer = _interopRequireDefault(__webpack_require__(/*! ./Planar/PlanarLayer */ "./node_modules/itowns/lib/Core/Prefab/Planar/PlanarLayer.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var PlanarView = /*#__PURE__*/function (_View) {
  (0, _inherits2["default"])(PlanarView, _View);

  var _super = _createSuper(PlanarView);

  /**
   * @constructor
   * @extends View
   *
   * @example <caption><b>Enable WebGl 1.0 instead of WebGl 2.0.</b></caption>
   * var viewerDiv = document.getElementById('viewerDiv');
   * const extent = new Extent('EPSG:3946', 1837816.94334, 1847692.32501, 5170036.4587, 5178412.82698);
   * var view = new itowns.PlanarView(viewerDiv, extent, {  renderer: { isWebGL2: false } });
   *
   * @example <caption><b>Instance with placement on the ground.</b></caption>
   * var viewerDiv = document.getElementById('viewerDiv');
   * const extent = new Extent('EPSG:3946', 1837816.94334, 1847692.32501, 5170036.4587, 5178412.82698);
   * var view = new itowns.PlanarView(viewerDiv, extent, { placement: { heading: -49.6, range: 6200, tilt: 17 } });
   *
   * @param {HTMLDivElement} viewerDiv - Where to attach the view and display it
   * in the DOM.
   * @param {Extent} extent - The ground extent.
   * @param {object=} options - See options of {@link View}.
   * @param {boolean} [options.noControls=false] - If true, no controls are associated to the view.
   * @param {object=} [options.controls] - options for the {@link PlanarControls} associated to the view, if
   * `options.noControls` is false.
   * @param {CameraUtils~CameraTransformOptions|Extent} [options.placement] - The
   * {@link CameraUtils~CameraTransformOptions} to apply to view's camera or the extent it must display at
   * initialization. By default, camera will display the view's extent (given in `extent` parameter).
   */
  function PlanarView(viewerDiv, extent) {
    var _this;

    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    (0, _classCallCheck2["default"])(this, PlanarView);
    THREE.Object3D.DefaultUp.set(0, 0, 1); // Setup View

    _this = _super.call(this, extent.crs, viewerDiv, options);
    _this.isPlanarView = true; // Configure camera

    var dim = extent.planarDimensions();
    var max = Math.max(dim.x, dim.y);
    var camera3D = _this.camera.camera3D;
    camera3D.near = 0.1;
    camera3D.far = camera3D.isOrthographicCamera ? 2000 : 2 * max;
    camera3D.updateProjectionMatrix();
    var tileLayer = new _PlanarLayer["default"]('planar', extent, options.object3d, options);
    _this.mainLoop.gfxEngine.label2dRenderer.infoTileLayer = tileLayer.info;

    _this.addLayer(tileLayer); // Configure camera


    var placement = options.placement || {};

    if (!placement.isExtent) {
      placement.coord = placement.coord || extent.center();
      placement.tilt = placement.tilt || 90;
      placement.heading = placement.heading || 0;
      placement.range = placement.range || max;
    }

    _CameraUtils["default"].transformCameraToLookAtTarget((0, _assertThisInitialized2["default"])(_this), camera3D, placement);

    if (!options.noControls) {
      _this.controls = new _PlanarControls["default"]((0, _assertThisInitialized2["default"])(_this), options.controls);
    }

    _this.tileLayer = tileLayer;
    return _this;
  }

  (0, _createClass2["default"])(PlanarView, [{
    key: "addLayer",
    value: function addLayer(layer) {
      return (0, _get2["default"])((0, _getPrototypeOf2["default"])(PlanarView.prototype), "addLayer", this).call(this, layer, this.tileLayer);
    }
  }]);
  return PlanarView;
}(_View2["default"]);

var _default = PlanarView;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/TileBuilder.js":
/*!************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/TileBuilder.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = newTileGeometry;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _TileGeometry = _interopRequireDefault(__webpack_require__(/*! ../TileGeometry */ "./node_modules/itowns/lib/Core/TileGeometry.js"));

var _Cache = _interopRequireDefault(__webpack_require__(/*! ../Scheduler/Cache */ "./node_modules/itowns/lib/Core/Scheduler/Cache.js"));

var _computeBufferTileGeometry = _interopRequireDefault(__webpack_require__(/*! ./computeBufferTileGeometry */ "./node_modules/itowns/lib/Core/Prefab/computeBufferTileGeometry.js"));

var _OBB = _interopRequireDefault(__webpack_require__(/*! ../../Renderer/OBB */ "./node_modules/itowns/lib/Renderer/OBB.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var cacheBuffer = new Map();
var cacheTile = new _Cache["default"]();

function newTileGeometry(builder, params) {
  var _builder$computeShara = builder.computeSharableExtent(params.extent),
      sharableExtent = _builder$computeShara.sharableExtent,
      quaternion = _builder$computeShara.quaternion,
      position = _builder$computeShara.position;

  var south = sharableExtent.south.toFixed(6);
  var bufferKey = "".concat(builder.crs, "_").concat(params.disableSkirt ? 0 : 1, "_").concat(params.segment);
  var promiseGeometry = cacheTile.get(south, params.level, bufferKey); // build geometry if doesn't exist

  if (!promiseGeometry) {
    var resolve;
    promiseGeometry = new Promise(function (r) {
      resolve = r;
    });
    cacheTile.set(promiseGeometry, south, params.level, bufferKey);
    params.extent = sharableExtent;
    params.center = builder.center(params.extent).clone(); // Read previously cached values (index and uv.wgs84 only depend on the # of triangles)

    var cachedBuffers = cacheBuffer.get(bufferKey);
    params.buildIndexAndUv_0 = !cachedBuffers;
    params.builder = builder;
    var buffers;

    try {
      buffers = (0, _computeBufferTileGeometry["default"])(params);
    } catch (e) {
      return Promise.reject(e);
    }

    if (!cachedBuffers) {
      cachedBuffers = {};
      cachedBuffers.index = new THREE.BufferAttribute(buffers.index, 1);
      cachedBuffers.uv = new THREE.BufferAttribute(buffers.uvs[0], 2); // Update cacheBuffer

      cacheBuffer.set(bufferKey, cachedBuffers);
    }

    buffers.index = cachedBuffers.index;
    buffers.uvs[0] = cachedBuffers.uv;
    buffers.position = new THREE.BufferAttribute(buffers.position, 3);
    buffers.normal = new THREE.BufferAttribute(buffers.normal, 3);

    if (params.builder.uvCount > 1) {
      buffers.uvs[1] = new THREE.BufferAttribute(buffers.uvs[1], 1);
    }

    var geometry = new _TileGeometry["default"](params, buffers);
    geometry.OBB = new _OBB["default"](geometry.boundingBox.min, geometry.boundingBox.max);
    geometry._count = 0;

    geometry.dispose = function () {
      geometry._count--;

      if (geometry._count <= 0) {
        // To avoid remove index buffer and attribute buffer uv_0
        //  error un-bound buffer in webgl with VAO rendering.
        // Could be removed if the attribute buffer deleting is
        //  taken into account in the buffer binding state (in THREE.WebGLBindingStates code).
        geometry.index = null;
        delete geometry.attributes.uv_0;
        THREE.BufferGeometry.prototype.dispose.call(geometry);
        cacheTile["delete"](south, params.level, bufferKey);
      }
    };

    resolve(geometry);
    return Promise.resolve({
      geometry: geometry,
      quaternion: quaternion,
      position: position
    });
  }

  return promiseGeometry.then(function (geometry) {
    return {
      geometry: geometry,
      quaternion: quaternion,
      position: position
    };
  });
}

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Prefab/computeBufferTileGeometry.js":
/*!**************************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Prefab/computeBufferTileGeometry.js ***!
  \**************************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = computeBuffers;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function computeBuffers(params) {
  // Create output buffers.
  var outBuffers = {
    index: null,
    position: null,
    normal: null,
    // 2 UV set per tile: wgs84 (uv_0) and pm (uv_1)
    //    - wgs84: 1 texture per tile because tiles are using wgs84 projection
    //    - pm: use multiple textures per tile.
    //      +-------------------------+
    //      |                         |
    //      |     Texture 0           |
    //      +-------------------------+
    //      |                         |
    //      |     Texture 1           |
    //      +-------------------------+
    //      |                         |
    //      |     Texture 2           |
    //      +-------------------------+
    //        * u = wgs84.u
    //        * v = textureid + v in builder texture
    uvs: []
  };
  var computeUvs = [];
  var builder = params.builder;
  var nSeg = params.segment || 8; // segments count :
  // Tile : (nSeg + 1) * (nSeg + 1)
  // Skirt : 8 * (nSeg - 1)

  var nVertex = (nSeg + 1) * (nSeg + 1) + (params.disableSkirt ? 0 : 4 * nSeg);

  if (nVertex > Math.pow(2, 32)) {
    throw new Error('Tile segments count is too big');
  }

  var triangles = nSeg * nSeg * 2 + (params.disableSkirt ? 0 : 4 * nSeg * 2);
  outBuffers.position = new Float32Array(nVertex * 3);
  outBuffers.normal = new Float32Array(nVertex * 3);
  var uvCount = params.builder.uvCount;

  if (uvCount > 1) {
    outBuffers.uvs[1] = new Float32Array(nVertex);
  }

  computeUvs[0] = function () {};

  if (params.buildIndexAndUv_0) {
    if (nVertex < Math.pow(2, 8)) {
      outBuffers.index = new Uint8Array(triangles * 3);
    } else if (nVertex < Math.pow(2, 16)) {
      outBuffers.index = new Uint16Array(triangles * 3);
    } else if (nVertex < Math.pow(2, 32)) {
      outBuffers.index = new Uint32Array(triangles * 3);
    }

    outBuffers.uvs[0] = new Float32Array(nVertex * 2);

    computeUvs[0] = function (id, u, v) {
      outBuffers.uvs[0][id * 2 + 0] = u;
      outBuffers.uvs[0][id * 2 + 1] = v;
    };
  }

  var widthSegments = Math.max(2, Math.floor(nSeg) || 2);
  var heightSegments = Math.max(2, Math.floor(nSeg) || 2);
  var idVertex = 0;
  var vertices = [];
  var skirt = [];
  var skirtEnd = [];
  builder.prepare(params);

  for (var y = 0; y <= heightSegments; y++) {
    var verticesRow = [];
    var v = y / heightSegments;
    builder.vProjecte(v, params);

    if (uvCount > 1) {
      (function () {
        var u = builder.computeUvs[1](params);

        computeUvs[1] = function (id) {
          outBuffers.uvs[1][id] = u;
        };
      })();
    }

    for (var x = 0; x <= widthSegments; x++) {
      var u = x / widthSegments;
      var id_m3 = idVertex * 3;
      builder.uProjecte(u, params);
      var vertex = builder.vertexPosition(params, params.projected);
      var normal = builder.vertexNormal(params); // move geometry to center world

      vertex.sub(params.center); // align normal to z axis

      if (params.quatNormalToZ) {
        vertex.applyQuaternion(params.quatNormalToZ);
        normal.applyQuaternion(params.quatNormalToZ);
      }

      vertex.toArray(outBuffers.position, id_m3);
      normal.toArray(outBuffers.normal, id_m3);

      var _iterator = _createForOfIteratorHelper(computeUvs),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var computeUv = _step.value;
          computeUv(idVertex, u, v);
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      if (!params.disableSkirt) {
        if (y !== 0 && y !== heightSegments) {
          if (x === widthSegments) {
            skirt.push(idVertex);
          } else if (x === 0) {
            skirtEnd.push(idVertex);
          }
        }
      }

      verticesRow.push(idVertex);
      idVertex++;
    }

    vertices.push(verticesRow);

    if (y === 0) {
      skirt = skirt.concat(verticesRow);
    } else if (y === heightSegments) {
      skirt = skirt.concat(verticesRow.slice().reverse());
    }
  }

  if (!params.disableSkirt) {
    skirt = skirt.concat(skirtEnd.reverse());
  }

  function bufferize(va, vb, vc, idVertex) {
    outBuffers.index[idVertex + 0] = va;
    outBuffers.index[idVertex + 1] = vb;
    outBuffers.index[idVertex + 2] = vc;
    return idVertex + 3;
  }

  var idVertex2 = 0;

  if (params.buildIndexAndUv_0) {
    for (var _y = 0; _y < heightSegments; _y++) {
      for (var _x = 0; _x < widthSegments; _x++) {
        var v1 = vertices[_y][_x + 1];
        var v2 = vertices[_y][_x];
        var v3 = vertices[_y + 1][_x];
        var v4 = vertices[_y + 1][_x + 1];
        idVertex2 = bufferize(v4, v2, v1, idVertex2);
        idVertex2 = bufferize(v4, v3, v2, idVertex2);
      }
    }
  }

  var iStart = idVertex; // TODO: WARNING beware skirt's size influences performance
  // The size of the skirt is now a ratio of the size of the tile.
  // To be perfect it should depend on the real elevation delta but too heavy to compute

  if (!params.disableSkirt) {
    // We compute the actual size of tile segment to use later for the skirt.
    var segmentSize = new THREE.Vector3().fromArray(outBuffers.position).distanceTo(new THREE.Vector3().fromArray(outBuffers.position, 3));

    var buildIndexSkirt = function () {};

    var buildUVSkirt = function () {};

    if (params.buildIndexAndUv_0) {
      buildIndexSkirt = function (id, v1, v2, v3, v4) {
        id = bufferize(v1, v2, v3, id);
        id = bufferize(v1, v3, v4, id);
        return id;
      };

      buildUVSkirt = function (id) {
        outBuffers.uvs[0][idVertex * 2 + 0] = outBuffers.uvs[0][id * 2 + 0];
        outBuffers.uvs[0][idVertex * 2 + 1] = outBuffers.uvs[0][id * 2 + 1];
      };
    }

    for (var i = 0; i < skirt.length; i++) {
      var id = skirt[i];

      var _id_m = idVertex * 3;

      var id2_m3 = id * 3;
      outBuffers.position[_id_m + 0] = outBuffers.position[id2_m3 + 0] - outBuffers.normal[id2_m3 + 0] * segmentSize;
      outBuffers.position[_id_m + 1] = outBuffers.position[id2_m3 + 1] - outBuffers.normal[id2_m3 + 1] * segmentSize;
      outBuffers.position[_id_m + 2] = outBuffers.position[id2_m3 + 2] - outBuffers.normal[id2_m3 + 2] * segmentSize;
      outBuffers.normal[_id_m + 0] = outBuffers.normal[id2_m3 + 0];
      outBuffers.normal[_id_m + 1] = outBuffers.normal[id2_m3 + 1];
      outBuffers.normal[_id_m + 2] = outBuffers.normal[id2_m3 + 2];
      buildUVSkirt(id);

      if (uvCount > 1) {
        outBuffers.uvs[1][idVertex] = outBuffers.uvs[1][id];
      }

      var idf = (i + 1) % skirt.length;
      var _v2 = idVertex;

      var _v3 = idf === 0 ? iStart : idVertex + 1;

      var _v4 = skirt[idf];
      idVertex2 = buildIndexSkirt(idVertex2, id, _v2, _v3, _v4);
      idVertex++;
    }
  }

  return outBuffers;
}

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Scheduler/Cache.js":
/*!*********************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Scheduler/Cache.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.CACHE_POLICIES = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var entry;
/**
 * Cache policies for flushing. Those policies can be used when something is
 * [set]{@link Cache.set} into the Cache, as the lifetime property.
 *
 * @typedef {Object} CACHE_POLICIES
 *
 * @property {number} INFINITE - The entry is never flushed, except when the
 * `all` flag is set to `true` when calling {@link Cache.flush}.
 * @property {number} TEXTURE - Shortcut for texture resources. Time is 15 minutes.
 * @property {number} GEOMETRY - Shortcut for geometry resources. Time is 15 minutes.
 * minutes.
 */

var CACHE_POLICIES = {
  INFINITE: Infinity,
  TEXTURE: 900000,
  GEOMETRY: 900000
};
/**
 * This is a copy of the Map object, except that it also store a value for last
 * time used. This value is used for cache expiration mechanism.
 *
 * @example
 * import Cache, { CACHE_POLICIES } from 'Core/Scheduler/Cache';
 *
 * const cache = new Cache(CACHE_POLICIES.TEXTURE)
 * cache.set({ bar: 1 }, 'foo');
 * cache.set({ bar: 32 }, 'foo', 'toto');
 *
 * cache.get('foo');
 *
 * cache.delete('foo');
 *
 * cache.clear();
 *
 * cache.flush();
 */

exports.CACHE_POLICIES = CACHE_POLICIES;

var Cache = /*#__PURE__*/function () {
  /**
   * @param      {number}  [lifetime=CACHE_POLICIES.INFINITE]  The cache expiration time for all values.
   */
  function Cache() {
    var lifetime = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : CACHE_POLICIES.INFINITE;
    (0, _classCallCheck2["default"])(this, Cache);
    this.lifeTime = lifetime;
    this.lastTimeFlush = Date.now();
    this.data = new Map();
  }
  /**
   * Returns the entry related to the specified key, content in array, from the cache.
   * The array contents one to three key.
   * The last time used property of the entry is updated to extend the longevity of the
   * entry.
   *
   * @param {string[]|number[]} keyArray key array ([key0, key1, key3])
   *
   * @return {Object}
   */


  (0, _createClass2["default"])(Cache, [{
    key: "getByArray",
    value: function getByArray(keyArray) {
      return this.get(keyArray[0], keyArray[1], keyArray[2]);
    }
    /**
    * Adds or updates an entry with specified keys array ([key0, key1, key3]).
    * Caution: it overrides any existing entry already set at this/those key/s.
    *
    * @param {Object} value to add in cache
    * @param {string[]|number[]} keyArray key array ([key0, key1, key3])
    *
    * @return {Object} the added value
    */

  }, {
    key: "setByArray",
    value: function setByArray(value, keyArray) {
      return this.set(value, keyArray[0], keyArray[1], keyArray[2]);
    }
    /**
     * Returns the entry related to the specified key from the cache. The last
     * time used property of the entry is updated to extend the longevity of the
     * entry.
     *
     * @param {string|number} key1
     * @param {string|number} [key2]
     * @param {string|number} [key3]
     *
     * @return {Object}
     */

  }, {
    key: "get",
    value: function get(key1, key2, key3) {
      var entry_1 = this.data.get(key1);

      if (entry_1 == undefined) {
        return;
      }

      if (entry_1.lastTimeUsed != undefined) {
        entry = entry_1;
      } else {
        var entry_2 = entry_1.get(key2);

        if (entry_2 == undefined) {
          return;
        }

        if (entry_2.lastTimeUsed != undefined) {
          entry = entry_2;
        } else {
          var entry_3 = entry_2.get(key3);

          if (entry_3 == undefined) {
            return;
          }

          entry = entry_3;
        }
      }

      if (entry.value) {
        entry.lastTimeUsed = Date.now();
        return entry.value;
      }
    }
    /**
     * Adds or updates an entry with specified keys (up to 3).
     * Caution: it overrides any existing entry already set at this/those key/s.
     *
     *
     * @param {Object} value to add in cache
     * @param {string|number} key1
     * @param {string|number} [key2]
     * @param {string|number} [key3]
     *
     * @return {Object} the added value
     */

  }, {
    key: "set",
    value: function set(value, key1, key2, key3) {
      entry = {
        value: value,
        lastTimeUsed: Date.now()
      };

      if (key2 == undefined) {
        this.data.set(key1, entry);
        return value;
      }

      if (!this.data.get(key1)) {
        this.data.set(key1, new Map());
      }

      var entry_map = this.data.get(key1);

      if (key3 == undefined) {
        entry_map.set(key2, entry);
        return value;
      }

      if (!entry_map.get(key2)) {
        entry_map.set(key2, new Map());
      }

      entry_map.get(key2).set(key3, entry);
      return value;
    }
    /**
     * Deletes the specified entry from the cache.
     *
     * @param {string|number} key1
     * @param {string|number} [key2]
     * @param {string|number} [key3]
     */

  }, {
    key: "delete",
    value: function _delete(key1, key2, key3) {
      var entry_1 = this.data.get(key1);

      if (entry_1 === undefined) {
        return;
      }

      if (entry_1.lastTimeUsed != undefined) {
        delete this.data.get(key1);
        this.data["delete"](key1);
      } else {
        var entry_2 = entry_1.get(key2);

        if (entry_2 === undefined) {
          return;
        }

        if (entry_2.lastTimeUsed != undefined) {
          delete entry_1.get(key2);
          entry_1["delete"](key2);

          if (entry_1.size == 0) {
            this.data["delete"](key1);
          }
        } else {
          var entry_3 = entry_2.get(key3);

          if (entry_3 === undefined) {
            return;
          }

          delete entry_2.get(key3);
          entry_2["delete"](key3);

          if (entry_2.size == 0) {
            entry_1["delete"](key2);

            if (entry_1.size == 0) {
              this.data["delete"](key1);
            }
          }
        }
      }
    }
    /**
     * Removes all entries of the cache.
     *
     */

  }, {
    key: "clear",
    value: function clear() {
      this.data.clear();
    }
    /**
     * Flush the cache: entries that have been present for too long since the
     * last time they were used, are removed from the cache. By default, the
     * time is the current time, but the interval can be reduced by doing
     * something like `Cache.flush(Date.now() - reductionTime)`. If you want to
     * clear the whole cache, use {@link Cache.clear} instead.
     *
     * @param {number} [time=Date.now()]
     */

  }, {
    key: "flush",
    value: function flush() {
      var _this = this;

      var time = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Date.now();

      if (this.lifeTime == CACHE_POLICIES.INFINITE || this.lifeTime > time - this.lastTimeFlush || !this.data.size) {
        return;
      }

      this.lastTimeFlush = Infinity;
      this.data.forEach(function (v1, i) {
        if (_this.lifeTime < time - v1.lastTimeUsed) {
          delete _this.data.get(i);

          _this.data["delete"](i);
        } else {
          v1.forEach(function (v2, j) {
            if (_this.lifeTime < time - v2.lastTimeUsed) {
              delete v1.get(j);
              v1["delete"](j);
            } else {
              v2.forEach(function (v3, k) {
                if (_this.lifeTime < time - v3.lastTimeUsed) {
                  delete v2.get(k);
                  v2["delete"](k);
                } else {
                  // Work for the moment because all flushed caches have 3 key!
                  _this.lastTimeFlush = Math.min(_this.lastTimeFlush, v3.lastTimeUsed);
                }
              });

              if (!v2.size) {
                delete v1.get(j);
                v1["delete"](j);
              }
            }
          });

          if (!v1.size) {
            delete _this.data.get(i);

            _this.data["delete"](i);
          }
        }
      });

      if (this.data.size == 0) {
        this.lastTimeFlush = Date.now();
      }
    }
  }]);
  return Cache;
}();

var _default = Cache;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Scheduler/CancelledCommandException.js":
/*!*****************************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Scheduler/CancelledCommandException.js ***!
  \*****************************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

/**
 * Custom error thrown when cancelling commands. Allows the caller to act differently if needed.
 * @class
 * @param {Command} command
 */
var CancelledCommandException = /*#__PURE__*/function () {
  function CancelledCommandException(command) {
    (0, _classCallCheck2["default"])(this, CancelledCommandException);
    this.command = command;
    this.isCancelledCommandException = true;
  }

  (0, _createClass2["default"])(CancelledCommandException, [{
    key: "toString",
    value: function toString() {
      return "Cancelled command ".concat(this.command.requester.id, "/").concat(this.command.layer.id);
    }
  }]);
  return CancelledCommandException;
}();

var _default = CancelledCommandException;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Scheduler/Scheduler.js":
/*!*************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/Scheduler/Scheduler.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _jsPriorityQueue = _interopRequireDefault(__webpack_require__(/*! js-priority-queue */ "./node_modules/js-priority-queue/priority-queue.js"));

var _DataSourceProvider = _interopRequireDefault(__webpack_require__(/*! ../../Provider/DataSourceProvider */ "./node_modules/itowns/lib/Provider/DataSourceProvider.js"));

var _TileProvider = _interopRequireDefault(__webpack_require__(/*! ../../Provider/TileProvider */ "./node_modules/itowns/lib/Provider/TileProvider.js"));

var _dTilesProvider = _interopRequireDefault(__webpack_require__(/*! ../../Provider/3dTilesProvider */ "./node_modules/itowns/lib/Provider/3dTilesProvider.js"));

var _PointCloudProvider = _interopRequireDefault(__webpack_require__(/*! ../../Provider/PointCloudProvider */ "./node_modules/itowns/lib/Provider/PointCloudProvider.js"));

var _CancelledCommandException = _interopRequireDefault(__webpack_require__(/*! ./CancelledCommandException */ "./node_modules/itowns/lib/Core/Scheduler/CancelledCommandException.js"));

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function queueOrdering(a, b) {
  var cmp = b.priority - a.priority; // Prioritize recent commands

  if (cmp === 0) {
    return b.timestamp - a.timestamp;
  }

  return cmp;
}

function drawNextLayer(storages) {
  // Dithering algorithm to select the next layer
  // see https://gamedev.stackexchange.com/a/95696 for more details
  var sum = 0;
  var selected;
  var max;

  var _iterator = _createForOfIteratorHelper(storages),
      _step;

  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var item = _step.value;
      var st = item[1];

      if (st.q.length > 0) {
        sum += st.priority;
        st.accumulator += st.priority; // Select the biggest accumulator

        if (!selected || st.accumulator > max) {
          selected = st;
          max = st.accumulator;
        }
      }
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }

  if (selected) {
    selected.accumulator -= sum;
    return selected.q;
  }
}

function _instanciateQueue() {
  return {
    queue: function queue(command) {
      var layer = command.layer;
      var st = this.storages.get(layer.id);

      if (!st) {
        st = {
          q: new _jsPriorityQueue["default"]({
            comparator: queueOrdering
          }),
          priority: 1,
          accumulator: 0
        };
        this.storages.set(layer.id, st);
      } // update priority (layer.priority may have changed)


      st.priority = layer.priority || 1;
      st.q.queue(command);
      this.counters.pending++;
    },
    storages: new Map(),
    counters: {
      // commands in progress
      executing: 0,
      // commands successfully executed
      executed: 0,
      // commands failed
      failed: 0,
      // commands cancelled
      cancelled: 0,
      // commands pending
      pending: 0
    },
    execute: function execute(cmd, provider) {
      var _this = this;

      this.counters.pending--;
      this.counters.executing++;
      return provider.executeCommand(cmd).then(function (result) {
        _this.counters.executing--;
        cmd.resolve(result); // only count successul commands

        _this.counters.executed++;
      }, function (err) {
        _this.counters.executing--;
        cmd.reject(err);
        _this.counters.failed++;
      });
    }
  };
}
/**
 * The Scheduler is in charge of managing the [Providers]{@link Provider} that
 * are used to gather resources needed to display the layers on a {@link View}.
 * There is only one instance of a Scheduler per webview, and it is instanciated
 * with the creation of the first view.
 *
 * @constructor
 */


function Scheduler() {
  // Constructor
  this.defaultQueue = _instanciateQueue();
  this.hostQueues = new Map();
  this.providers = {};
  this.maxCommandsPerHost = 6; // TODO: add an options to not instanciate default providers

  this.initDefaultProviders();
}

Scheduler.prototype.constructor = Scheduler;

Scheduler.prototype.initDefaultProviders = function () {
  // Register all providers
  this.addProtocolProvider('tile', _TileProvider["default"]);
  this.addProtocolProvider('3d-tiles', _dTilesProvider["default"]);
  this.addProtocolProvider('pointcloud', _PointCloudProvider["default"]);
};

Scheduler.prototype.runCommand = function (command, queue, executingCounterUpToDate) {
  var _this2 = this;

  var provider = this.getProtocolProvider(command.layer.protocol);

  if (!provider) {
    throw new Error("No known provider for layer ".concat(command.layer.id));
  }

  queue.execute(command, provider, executingCounterUpToDate).then(function () {
    // notify view that one command ended.
    command.view.notifyChange(command.requester, command.redraw); // try to execute next command

    if (queue.counters.executing < _this2.maxCommandsPerHost) {
      var cmd = _this2.deQueue(queue);

      if (cmd) {
        _this2.runCommand(cmd, queue);
      }
    }
  });
};

Scheduler.prototype.execute = function (command) {
  var _this3 = this;

  // TODO: check for mandatory commands fields
  // parse host
  var layer = command.layer;
  var host = layer.source && layer.source.url ? new URL(layer.source.url, document.location).host : undefined;
  command.promise = new Promise(function (resolve, reject) {
    command.resolve = resolve;
    command.reject = reject;
  }); // init queue if needed

  if (host && !this.hostQueues.has(host)) {
    this.hostQueues.set(host, _instanciateQueue());
  }

  var q = host ? this.hostQueues.get(host) : this.defaultQueue;
  command.timestamp = Date.now();
  q.queue(command);

  if (q.counters.executing < this.maxCommandsPerHost) {
    // Defer the processing after the end of the current frame.
    // Promise.resolve or setTimeout(..., 0) will do the job, the difference
    // is:
    //   - setTimeout is a new task, queued in the event-loop queues
    //   - Promise is a micro-task, executed before other tasks
    Promise.resolve().then(function () {
      if (q.counters.executing < _this3.maxCommandsPerHost) {
        var cmd = _this3.deQueue(q);

        if (cmd) {
          _this3.runCommand(cmd, q);
        }
      }
    });
  }

  return command.promise;
};
/**
 * A Provider has the responsability to handle protocols and datablobs. Given a
 * data request (see {@link Provider#executeCommand} for details about this
 * request), it fetches serialized datasets, file content or even file chunks.
 *
 * @interface Provider
 */

/**
 * When adding a layer to a view, some preprocessing can be done on it, before
 * fetching or creating resources attached to it. For example, in the WMTS and
 * WFS providers (included in iTowns), default options to the layer are added if
 * some are missing.
 *
 * @param {Layer} layer
 * @param {View} [view]
 * @param {Scheduler} [scheduler]
 * @param {Layer} [parentLayer]
 */

/**
 * In the {@link Scheduler} loop, this function is called every time the layer
 * needs new information about itself. For tiled layers, it gets the necessary
 * tiles, given the current position of the camera on the map. For simple layers
 * like a GPX trace, it gets the data once.
 * <br><br>
 * It passes a `command` object as a parameter, with the `view` and the `layer`
 * always present. The other parameters are optional.
 *
 * @function
 * @name Provider#executeCommand
 *
 * @param {Object} command
 * @param {View} command.view
 * @param {Layer} command.layer
 * @param {TileMesh} [command.requester] - Every layer is attached to a tile.
 * @param {number} [command.targetLevel] - The target level is used when there
 * is a tiled layer, such as WMTS or TMS, but not in case like a GPX layer.
 *
 * @return {Promise} The {@link Scheduler} always expect a Promise as a result,
 * resolving to an object containing sufficient information for the associated
 * processing to the current layer. For example, see the
 * [LayeredMaterialNodeProcessing#updateLayeredMaterialNodeElevation]{@link
 * https://github.com/iTowns/itowns/blob/master/src/Process/LayeredMaterialNodeProcessing.js}
 * class or other processing class.
 */

/**
 * Adds a provider for a specified protocol. The provider will be used when
 * executing the queue to provide resources. See {@link Provider} for more
 * informations.
 * By default, some protocols are already set in iTowns: WMTS, WMS, WFS, TMS,
 * XYZ, PotreeConverter, Rasterizer, 3D-Tiles and Static.
 * <br><br>
 * Warning: if the specified protocol has already a provider attached to it, the
 * current provider will be overwritten by the given provider.
 *
 * @param {string} protocol - The name of the protocol to add. This is the
 * `protocol` parameter put inside the configuration when adding a layer. The
 * capitalization of the name is not taken into account here.
 * @param {Provider} provider - The provider to link to the protocol, that must
 * respect the {@link Provider} interface description.
 *
 * @throws {Error} an error if any method of the {@link Provider} is not present
 * in the provider.
 */


Scheduler.prototype.addProtocolProvider = function (protocol, provider) {
  if (typeof provider.executeCommand !== 'function') {
    throw new Error("Can't add provider for ".concat(protocol, ": missing a executeCommand function."));
  }

  this.providers[protocol] = provider;
};
/**
 * Get a specific {@link Provider} given a particular protocol.
 *
 * @param {string} protocol
 *
 * @return {Provider}
 */


Scheduler.prototype.getProtocolProvider = function (protocol) {
  return this.providers[protocol] || _DataSourceProvider["default"];
};

Scheduler.prototype.commandsWaitingExecutionCount = function () {
  var sum = this.defaultQueue.counters.pending + this.defaultQueue.counters.executing;

  var _iterator2 = _createForOfIteratorHelper(this.hostQueues),
      _step2;

  try {
    for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
      var q = _step2.value;
      sum += q[1].counters.pending + q[1].counters.executing;
    }
  } catch (err) {
    _iterator2.e(err);
  } finally {
    _iterator2.f();
  }

  return sum;
};

Scheduler.prototype.commandsRunningCount = function () {
  var sum = this.defaultQueue.counters.executing;

  var _iterator3 = _createForOfIteratorHelper(this.hostQueues),
      _step3;

  try {
    for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
      var q = _step3.value;
      sum += q[1].counters.executing;
    }
  } catch (err) {
    _iterator3.e(err);
  } finally {
    _iterator3.f();
  }

  return sum;
};

Scheduler.prototype.resetCommandsCount = function (type) {
  var sum = this.defaultQueue.counters[type];
  this.defaultQueue.counters[type] = 0;

  var _iterator4 = _createForOfIteratorHelper(this.hostQueues),
      _step4;

  try {
    for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
      var q = _step4.value;
      sum += q[1].counters[type];
      q[1].counters[type] = 0;
    }
  } catch (err) {
    _iterator4.e(err);
  } finally {
    _iterator4.f();
  }

  return sum;
};

Scheduler.prototype.deQueue = function (queue) {
  var st = drawNextLayer(queue.storages);

  while (st && st.length > 0) {
    var cmd = st.dequeue();

    if (cmd.earlyDropFunction && cmd.earlyDropFunction(cmd)) {
      queue.counters.pending--;
      queue.counters.cancelled++;
      cmd.reject(new _CancelledCommandException["default"](cmd));
    } else {
      return cmd;
    }
  }

  return undefined;
};

var _default = Scheduler;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/Style.js":
/*!***********************************************!*\
  !*** ./node_modules/itowns/lib/Core/Style.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.cacheStyle = void 0;
exports.readExpression = readExpression;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _Feature = __webpack_require__(/*! ./Feature */ "./node_modules/itowns/lib/Core/Feature.js");

var _Cache = _interopRequireDefault(__webpack_require__(/*! ./Scheduler/Cache */ "./node_modules/itowns/lib/Core/Scheduler/Cache.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ../Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

var mapbox = _interopRequireWildcard(__webpack_require__(/*! @mapbox/mapbox-gl-style-spec */ "./node_modules/@mapbox/mapbox-gl-style-spec/dist/index.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

/* babel-plugin-inline-import './StyleChunk/itowns_stroke_single_before.css' */
var itowns_stroke_single_before = ".itowns-stroke-single:before {\n    display: var(--text_stroke_display);\n    content: attr(data-before);\n    opacity: 1;\n    position: absolute;\n    -webkit-text-stroke-width: var(--text_stroke_width);\n    -webkit-text-stroke-color: var(--text_stroke_color);\n    left: 0;\n    right: 0;\n    bottom: 0;\n    top: 0;\n    z-index: -1;\n    white-space: inherit;\n    overflow-wrap: inherit;\n    letter-spacing: inherit;\n    text-align: inherit;\n    padding: inherit;\n    font-family: inherit;\n    text-transform: inherit;\n    max-width: inherit;\n    font-size: inherit;\n}\n";
var cacheStyle = new _Cache["default"]();
exports.cacheStyle = cacheStyle;
var inv255 = 1 / 255;
var canvas = document.createElement('canvas');
var style_properties = {};

function base_altitudeDefault() {
  var coordinates = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
    z: 0
  };
  return coordinates.z;
}

function mapPropertiesFromContext(mainKey, from, to, context) {
  to[mainKey] = to[mainKey] || {};

  var _iterator = _createForOfIteratorHelper(style_properties[mainKey]),
      _step;

  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var key = _step.value;
      var value = readExpression(from[mainKey][key], context);

      if (value !== undefined) {
        to[mainKey][key] = value;
      }
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
}

function rgba2rgb(orig) {
  if (!orig) {
    return {};
  } else if (orig.stops || orig.expression) {
    return {
      color: orig
    };
  } else if (typeof orig == 'string') {
    var result = orig.match(/(?:((hsl|rgb)a? *\(([\d.%]+(?:deg|g?rad|turn)?)[ ,]*([\d.%]+)[ ,]*([\d.%]+)[ ,/]*([\d.%]*)\))|(#((?:[\d\w]{3}){1,2})([\d\w]{1,2})?))/i);

    if (!result) {
      return {
        color: orig,
        opacity: 1.0
      };
    } else if (result[7]) {
      var opacity = 1.0;

      if (result[9]) {
        opacity = parseInt(result[9].length == 1 ? "".concat(result[9]).concat(result[9]) : result[9], 16) * inv255;
      }

      return {
        color: "#".concat(result[8]),
        opacity: opacity
      };
    } else if (result[0]) {
      return {
        color: "".concat(result[2], "(").concat(result[3], ",").concat(result[4], ",").concat(result[5], ")"),
        opacity: Number(result[6]) || 1.0
      };
    }
  }
}

function readExpression(property, ctx) {
  if (property != undefined) {
    if (property.expression) {
      return property.expression.evaluate(ctx);
    } else if (property.stops) {
      for (var i = property.stops.length - 1; i >= 0; i--) {
        var stop = property.stops[i];

        if (ctx.globals.zoom >= stop[0]) {
          return stop[1];
        }
      }

      return property.stops[0][1];
    } else if (property instanceof Function) {
      return property(ctx.properties());
    } else {
      return property;
    }
  }
}

function readVectorProperty(property, options) {
  if (property != undefined) {
    if (mapbox.expression.isExpression(property)) {
      return mapbox.expression.createExpression(property, options).value;
    } else {
      return property.base || property;
    }
  }
}

function getImage(source, key) {
  var target = document.createElement('img');

  if (typeof source == 'string') {
    target.src = source;
  } else if (source && source[key]) {
    var sprite = source[key];
    canvas.width = sprite.width;
    canvas.height = sprite.height;
    canvas.getContext('2d').drawImage(source.img, sprite.x, sprite.y, sprite.width, sprite.height, 0, 0, sprite.width, sprite.height);
    target.src = canvas.toDataURL('image/png');
  }

  return target;
}

var textAnchorPosition = {
  left: [0, -0.5],
  right: [-1, -0.5],
  top: [-0.5, 0],
  bottom: [-0.5, -1],
  'top-right': [-1, 0],
  'bottom-left': [0, -1],
  'bottom-right': [-1, -1],
  center: [-0.5, -0.5],
  'top-left': [0, 0]
};

function defineStyleProperty(style, category, name, value, defaultValue) {
  var property;
  Object.defineProperty(style[category], name, {
    enumerable: true,
    get: function get() {
      if (property === undefined) {
        return style.parent[category][name] || defaultValue;
      } else {
        return property;
      }
    },
    set: function set(v) {
      property = v;
    }
  });
  style[category][name] = value;
}
/**
 * A Style is an object that defines the visual appearance of {@link
 * FeatureCollection} and {@link Feature}. It is taken into account when drawing
 * them in textures that will be placed onto tiles.
 *
 * As there are four basic elements present in `Features`, there are also four
 * main components in a `Style` object:
 * - `fill` is for all fillings and polygons
 * - `stroke` is for all lines and polygons edges
 * - `point` is for all points
 * - `text` contains all {@link Label} related things
 *
 * Many style property can be set to functions. When that is the case, the function's
 * return type must necessarily be the same as the types (other than function) of the property.
 * For instance, if the `fill.pattern` property is set to a function, this function must return
 * an `Image`, a `Canvas`, or `String`.
 * The first parameter of functions used to set `Style` properties is always an object containing
 * the properties of the features displayed with the current `Style` instance.
 *
 * @property {number} order - Order of the features that will be associated to
 * the style. It can helps sorting and prioritizing features if needed.
 * @property {Object} fill - Polygons and fillings style.
 * @property {string|function} fill.color - Defines the main color of the filling. Can be
 * any [valid color
 * string](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value).
 * Default is no value, indicating that no filling needs to be done.
 * If the `Layer` is a `GeometryLayer` you could use `THREE.Color`.
 * @property {Image|Canvas|string|function} fill.pattern - Defines a pattern to fill the
 * surface with. It can be an `Image` to use directly, or an url to fetch the
 * pattern from. See [this
 * example](http://www.itowns-project.org/itowns/examples/#source_file_geojson_raster)
 * for how to use.
 * @property {number|function} fill.opacity - The opacity of the color or the
 * pattern. Can be between `0.0` and `1.0`. Default is `1.0`.
 * For a `GeometryLayer`, this opacity property isn't used.
 * @property {number|function} fill.base_altitude - `GeometryLayer` Style, defines altitude
 * for each Coordinates.
 * If `base_altitude` is `undefined`, the original altitude is kept, and if it doesn't exist
 * then the altitude value is set to 0.
 * @property {number|function} fill.extrusion_height - `GeometryLayer` Style, if defined,
 * polygons will be extruded by the specified amount
 * @property {Object} stroke - Lines and polygon edges.
 * @property {string|function} stroke.color The color of the line. Can be any [valid
 * color string](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value).
 * Default is no value, indicating that no stroke needs to be done.
 * If the `Layer` is a `GeometryLayer` you could use `THREE.Color`.
 * @property {number|function} stroke.opacity - The opacity of the line. Can be between
 * `0.0` and `1.0`. Default is `1.0`.
 * For a `GeometryLayer`, this opacity property isn't used.
 * @property {number|function} stroke.width - The width of the line. Default is `1.0`.
 * @property {number|function} stroke.base_altitude - `GeometryLayer` Style, defines altitude
 * for each Coordinates.
 * If `base_altitude` is `undefined`, the original altitude is kept, and if it doesn't exist
 * then the altitude value is set to 0.
 *
 * @property {Object} point - Point style.
 * @property {string|function} point.color - The color of the point. Can be any [valid
 * color string](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value).
 * Default is no value, indicating that no point will be shown.
 * @property {number|function} point.radius - The radius of the point, in pixel. Default
 * is `2.0`.
 * @property {string|function} point.line - The color of the border of the point. Can be
 * any [valid color
 * string](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value).
 * It's not supported with a `GeometryLayer`.
 * @property {number|function} point.width - The width of the border, in pixel. Default
 * is `0.0` (no border).
 * @property {number|function} point.opacity - The opacity of the point. Can be between
 * `0.0` and `1.0`. Default is `1.0`.
 * It's not supported with a `GeometryLayer`.
 * @property {number|function} point.base_altitude - `GeometryLayer` Style, defines altitude
 * for each Coordinates.
 * If `base_altitude` is `undefined`, the original altitude is kept, and if it doesn't exist
 * then the altitude value is set to 0.
 *
 * @property {Object} text - All things {@link Label} related.
 * @property {string|function} text.field - A string to help read the text field from
 * properties of a `FeatureGeometry`, with the key of the property enclosed by
 * brackets. For example, if each geometry contains a `name` property,
 * `text.field` can be set as `{name}`. Default is no value, indicating that no
 * text will be shown.
 *
 * The brackets allows the use of complex fields. For
 * example, if a static string `foo` is attached to the changing property `bar`,
 * you can specify `foo {bar}`, and `foo` will stay everytime, while `{bar}`
 * will change into the value of the property of the geometry. You can also have
 * multiple properties in one field, like if you want the latin name and the
 * local name of a location. Specifying `{name_latin} - {name_local}` can result
 * in `Marrakesh - مراكش` for example.
 * @property {string|function} text.color - The color of the text. Can be any [valid
 * color string](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value).
 * Default is `#000000`.
 * @property {string|number[]|function} text.anchor - The anchor of the text compared to its
 * position (see {@link Label} for the position). Can be a few value: `top`,
 * `left`, `bottom`, `right`, `center`, `top-left`, `top-right`, `bottom-left`
 * or `bottom-right`. Default is `center`.
 *
 * It can also be defined as an Array of two numbers. Each number defines an offset (in
 * fraction of the label width and height) between the label position and the top-left
 * corner of the text. The first value is the horizontal offset, and the second is the
 * vertical offset. For example, `[-0.5, -0.5]` will be equivalent to `center`.
 * @property {Array|function} text.offset - The offset of the text, depending on its
 * anchor, in pixels. First value is from `left`, second is from `top`. Default
 * is `[0, 0]`.
 * @property {number|function} text.padding - The padding outside the text, in pixels.
 * Default is `2`.
 * @property {number|function} text.size - The size of the font, in pixels. Default is
 * `16`.
 * @property {number|function} text.wrap - The maximum width, in pixels, before the text
 * is wrapped, because the string is too long. Default is `10`.
 * @property {number|function} text.spacing - The spacing between the letters, in `em`.
 * Default is `0`.
 * @property {string|function} text.transform - A value corresponding to the [CSS
 * property
 * `text-transform`](https://developer.mozilla.org/en-US/docs/Web/CSS/text-transform).
 * Default is `none`.
 * @property {string|function} text.justify - A value corresponding to the [CSS property
 * `text-align`](https://developer.mozilla.org/en-US/docs/Web/CSS/text-align).
 * Default is `center`.
 * @property {number|function} text.opacity - The opacity of the text. Can be between
 * `0.0` and `1.0`. Default is `1.0`.
 * @property {Array|function} text.font - A list (as an array of string) of font family
 * names, prioritized in the order it is set. Default is `Open Sans Regular,
 * Arial Unicode MS Regular, sans-serif`.
 * @property {string|function} text.haloColor - The color of the halo. Can be any [valid
 * color string](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value).
 * Default is `#000000`.
 * @property {number|function} text.haloWidth - The width of the halo, in pixels.
 * Default is `0`.
 * @property {number|function} text.haloBlur - The blur value of the halo, in pixels.
 * Default is `0`.
 *
 * @property {Object} icon - Defines the appearance of icons attached to label.
 * @property {String} icon.source - The url of the icons' image file.
 * @property {String} icon.key - The key of the icons' image in a vector tile data set.
 * @property {string} [icon.anchor='center'] - The anchor of the icon compared to the label position.
 * Can be `left`, `bottom`, `right`, `center`, `top-left`, `top-right`, `bottom-left`
 * or `bottom-right`.
 * @property {number} icon.size - If the icon's image is passed with `icon.source` or
 * `icon.key`, it size when displayed on screen is multiplied by `icon.size`. Default is `1`.
 *
 * @example
 * const style = new itowns.Style({
 *      stroke: { color: 'red' },
 *      point: { color: 'white', line: 'red' },
 * });
 *
 * const source = new itowns.FileSource(...);
 *
 * const layer = new itowns.ColorLayer('foo', {
 *      source: source,
 *      style: style,
 * });
 *
 * view.addLayer(layer);
 */


var Style = /*#__PURE__*/function () {
  /**
   * @param {Object} [params={}] An object that can contain all properties of
   * a Style.
   * @param {Style} [parent] The parent style, that is looked onto if a value
   * is missing.
   *
   * @constructor
   */
  function Style() {
    var _this = this;

    var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var parent = arguments.length > 1 ? arguments[1] : undefined;
    (0, _classCallCheck2["default"])(this, Style);
    this.isStyle = true;
    this.order = 0;
    this.parent = parent || {
      zoom: {},
      fill: {},
      stroke: {},
      point: {},
      text: {},
      icon: {}
    };
    params.zoom = params.zoom || {};
    params.fill = params.fill || {};
    params.stroke = params.stroke || {};
    params.point = params.point || {};
    params.text = params.text || {};
    params.icon = params.icon || {};
    this.zoom = {};
    defineStyleProperty(this, 'zoom', 'min', params.zoom.min);
    defineStyleProperty(this, 'zoom', 'max', params.zoom.max);
    this.fill = {};
    defineStyleProperty(this, 'fill', 'color', params.fill.color);
    defineStyleProperty(this, 'fill', 'opacity', params.fill.opacity, 1.0);
    defineStyleProperty(this, 'fill', 'pattern', params.fill.pattern);
    defineStyleProperty(this, 'fill', 'base_altitude', params.fill.base_altitude, base_altitudeDefault);
    defineStyleProperty(this, 'fill', 'extrusion_height', params.fill.extrusion_height);

    if (typeof this.fill.pattern == 'string') {
      _Fetcher["default"].texture(this.fill.pattern).then(function (pattern) {
        _this.fill.pattern = pattern.image;
      });
    }

    this.stroke = {};
    defineStyleProperty(this, 'stroke', 'color', params.stroke.color);
    defineStyleProperty(this, 'stroke', 'opacity', params.stroke.opacity, 1.0);
    defineStyleProperty(this, 'stroke', 'width', params.stroke.width, 1.0);
    defineStyleProperty(this, 'stroke', 'dasharray', params.stroke.dasharray, []);
    defineStyleProperty(this, 'stroke', 'base_altitude', params.stroke.base_altitude, base_altitudeDefault);
    this.point = {};
    defineStyleProperty(this, 'point', 'color', params.point.color);
    defineStyleProperty(this, 'point', 'line', params.point.line);
    defineStyleProperty(this, 'point', 'opacity', params.point.opacity, 1.0);
    defineStyleProperty(this, 'point', 'radius', params.point.radius, 2.0);
    defineStyleProperty(this, 'point', 'width', params.point.width, 0.0);
    defineStyleProperty(this, 'point', 'base_altitude', params.point.base_altitude, base_altitudeDefault);
    this.text = {};
    defineStyleProperty(this, 'text', 'field', params.text.field);
    defineStyleProperty(this, 'text', 'zOrder', params.text.zOrder, 'auto');
    defineStyleProperty(this, 'text', 'color', params.text.color, '#000000');
    defineStyleProperty(this, 'text', 'anchor', params.text.anchor, 'center');
    defineStyleProperty(this, 'text', 'offset', params.text.offset, [0, 0]);
    defineStyleProperty(this, 'text', 'padding', params.text.padding, 2);
    defineStyleProperty(this, 'text', 'size', params.text.size, 16);
    defineStyleProperty(this, 'text', 'placement', params.text.placement, 'point');
    defineStyleProperty(this, 'text', 'rotation', params.text.rotation, 'auto');
    defineStyleProperty(this, 'text', 'wrap', params.text.wrap, 10);
    defineStyleProperty(this, 'text', 'spacing', params.text.spacing, 0);
    defineStyleProperty(this, 'text', 'transform', params.text.transform, 'none');
    defineStyleProperty(this, 'text', 'justify', params.text.justify, 'center');
    defineStyleProperty(this, 'text', 'opacity', params.text.opacity, 1.0);
    defineStyleProperty(this, 'text', 'font', params.text.font, ['Open Sans Regular', 'Arial Unicode MS Regular', 'sans-serif']);
    defineStyleProperty(this, 'text', 'haloColor', params.text.haloColor, '#000000');
    defineStyleProperty(this, 'text', 'haloWidth', params.text.haloWidth, 0);
    defineStyleProperty(this, 'text', 'haloBlur', params.text.haloBlur, 0);
    this.icon = {};
    defineStyleProperty(this, 'icon', 'source', params.icon.source);
    defineStyleProperty(this, 'icon', 'key', params.icon.key);
    defineStyleProperty(this, 'icon', 'anchor', params.icon.anchor, 'center');
    defineStyleProperty(this, 'icon', 'size', params.icon.size, 1);
  }
  /**
   * Map drawing properties style (fill, stroke and point) from context to object.
   * Only the necessary properties are mapped to object.
   * if a property is expression, the mapped value will be the expression result depending on context.
   * @param      {Object}  context  The context
   * @return     {Object}  mapped style depending on context.
   */


  (0, _createClass2["default"])(Style, [{
    key: "drawingStylefromContext",
    value: function drawingStylefromContext(context) {
      var style = {};

      if (this.fill.color || this.fill.pattern || context.globals.fill) {
        mapPropertiesFromContext('fill', this, style, context);
      }

      if (this.stroke.color || context.globals.stroke) {
        mapPropertiesFromContext('stroke', this, style, context);
      }

      if (this.point.color || context.globals.point) {
        mapPropertiesFromContext('point', this, style, context);
      }

      if (Object.keys(style).length) {
        return style;
      }
    }
    /**
     * Map symbol properties style (symbol and icon) from context to object.
     * Only the necessary properties are mapped to object.
     * if a property is expression, the mapped value will be the expression result depending on context.
     * @param      {Object}  context  The context
     * @return     {Object}  mapped style depending on context.
     */

  }, {
    key: "symbolStylefromContext",
    value: function symbolStylefromContext(context) {
      var style = new Style();
      mapPropertiesFromContext('text', this, style, context);

      if (this.icon) {
        mapPropertiesFromContext('icon', this, style, context);
      }

      style.order = this.order;
      return style;
    }
    /**
     * Copies the content of the target style into this style.
     *
     * @param {Style} style - The style to copy.
     *
     * @return {Style} This style.
     */

  }, {
    key: "copy",
    value: function copy(style) {
      Object.assign(this.fill, style.fill);
      Object.assign(this.stroke, style.stroke);
      Object.assign(this.point, style.point);
      Object.assign(this.text, style.text);
      Object.assign(this.icon, style.icon);
      return this;
    }
    /**
     * Clones this style.
     *
     * @return {Style} The new style, cloned from this one.
     */

  }, {
    key: "clone",
    value: function () {
      var clone = new Style();
      return clone.copy(this);
    }
    /**
     * set Style from geojson properties.
     * @param {object} properties geojson properties.
     * @param {number} type
     * @returns {Style}
     */

  }, {
    key: "setFromGeojsonProperties",
    value: function setFromGeojsonProperties(properties, type) {
      if (type === _Feature.FEATURE_TYPES.POINT) {
        this.point.color = properties.fill;
        this.point.opacity = properties['fill-opacity'];
        this.point.line = properties.stroke;
        this.point.radius = properties.radius;
        this.text.color = properties['label-color'];
        this.text.opacity = properties['label-opacity'];
        this.text.size = properties['label-size'];

        if (properties.icon) {
          this.icon.source = properties.icon;
        }
      } else {
        this.stroke.color = properties.stroke;
        this.stroke.width = properties['stroke-width'];
        this.stroke.opacity = properties['stroke-opacity'];

        if (type !== _Feature.FEATURE_TYPES.LINE) {
          this.fill.color = properties.fill;
          this.fill.opacity = properties['fill-opacity'];
        }
      }

      return this;
    }
    /**
     * set Style from vector tile layer properties.
     * @param {object} layer vector tile layer.
     * @param {Object} sprites vector tile layer.
     * @param {number} [order=0]
     * @param {boolean} [symbolToCircle=false]
     * @returns {Style}
     */

  }, {
    key: "setFromVectorTileLayer",
    value: function setFromVectorTileLayer(layer, sprites) {
      var order = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
      var symbolToCircle = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
      layer.layout = layer.layout || {};
      layer.paint = layer.paint || {};
      this.order = order;

      if (layer.type === 'fill' && !this.fill.color) {
        var _rgba2rgb = rgba2rgb(readVectorProperty(layer.paint['fill-color'] || layer.paint['fill-pattern'], {
          type: 'color'
        })),
            color = _rgba2rgb.color,
            opacity = _rgba2rgb.opacity;

        this.fill.color = color;
        this.fill.opacity = readVectorProperty(layer.paint['fill-opacity']) || opacity;

        if (layer.paint['fill-pattern'] && sprites) {
          this.fill.pattern = getImage(sprites, layer.paint['fill-pattern']);
        }

        if (layer.paint['fill-outline-color']) {
          var _rgba2rgb2 = rgba2rgb(readVectorProperty(layer.paint['fill-outline-color'], {
            type: 'color'
          })),
              _color = _rgba2rgb2.color,
              _opacity = _rgba2rgb2.opacity;

          this.stroke.color = _color;
          this.stroke.opacity = _opacity;
          this.stroke.width = 1.0;
          this.stroke.dasharray = [];
        }
      } else if (layer.type === 'line' && !this.stroke.color) {
        var prepare = readVectorProperty(layer.paint['line-color'], {
          type: 'color'
        });

        var _rgba2rgb3 = rgba2rgb(prepare),
            _color2 = _rgba2rgb3.color,
            _opacity2 = _rgba2rgb3.opacity;

        this.stroke.dasharray = readVectorProperty(layer.paint['line-dasharray']);
        this.stroke.color = _color2;
        this.stroke.lineCap = layer.layout['line-cap'];
        this.stroke.width = readVectorProperty(layer.paint['line-width']);
        this.stroke.opacity = readVectorProperty(layer.paint['line-opacity']) || _opacity2;
      } else if (layer.type === 'circle' || symbolToCircle) {
        var _rgba2rgb4 = rgba2rgb(readVectorProperty(layer.paint['circle-color'], {
          type: 'color'
        })),
            _color3 = _rgba2rgb4.color,
            _opacity3 = _rgba2rgb4.opacity;

        this.point.color = _color3;
        this.point.opacity = _opacity3;
        this.point.radius = readVectorProperty(layer.paint['circle-radius']);
      } else if (layer.type === 'symbol') {
        // overlapping order
        this.text.zOrder = readVectorProperty(layer.layout['symbol-z-order']);

        if (this.text.zOrder == 'auto') {
          this.text.zOrder = readVectorProperty(layer.layout['symbol-sort-key']) || 'Y';
        } else if (this.text.zOrder == 'viewport-y') {
          this.text.zOrder = 'Y';
        } else if (this.text.zOrder == 'source') {
          this.text.zOrder = 0;
        } // position


        this.text.anchor = readVectorProperty(layer.layout['text-anchor']);
        this.text.offset = readVectorProperty(layer.layout['text-offset']);
        this.text.padding = readVectorProperty(layer.layout['text-padding']);
        this.text.size = readVectorProperty(layer.layout['text-size']);
        this.text.placement = readVectorProperty(layer.layout['symbol-placement']);
        this.text.rotation = readVectorProperty(layer.layout['text-rotation-alignment']); // content

        this.text.field = readVectorProperty(layer.layout['text-field']);
        this.text.wrap = readVectorProperty(layer.layout['text-max-width']);
        this.text.spacing = readVectorProperty(layer.layout['text-letter-spacing']);
        this.text.transform = readVectorProperty(layer.layout['text-transform']);
        this.text.justify = readVectorProperty(layer.layout['text-justify']); // appearance

        var _rgba2rgb5 = rgba2rgb(readVectorProperty(layer.paint['text-color'], {
          type: 'color'
        })),
            _color4 = _rgba2rgb5.color,
            _opacity4 = _rgba2rgb5.opacity;

        this.text.color = _color4;
        this.text.opacity = readVectorProperty(layer.paint['text-opacity']) || _opacity4 !== undefined && _opacity4;
        this.text.font = readVectorProperty(layer.layout['text-font']);
        var haloColor = readVectorProperty(layer.paint['text-halo-color'], {
          type: 'color'
        });

        if (haloColor) {
          this.text.haloColor = haloColor.color || haloColor;
          this.text.haloWidth = readVectorProperty(layer.paint['text-halo-width']);
          this.text.haloBlur = readVectorProperty(layer.paint['text-halo-blur']);
        } // additional icon


        var key = readVectorProperty(layer.layout['icon-image']);

        if (key) {
          this.icon.key = key;
          this.icon.size = readVectorProperty(layer.layout['icon-size']) || 1;
        }
      }

      return this;
    }
    /**
     * Applies this style to a DOM element. Limited to the `text` and `icon`
     * properties of this style.
     *
     * @param {Element} domElement - The element to set the style to.
     * @param {Object} sprites - the sprites.
     */

  }, {
    key: "applyToHTML",
    value: function applyToHTML(domElement, sprites) {
      var _this2 = this;

      domElement.style.padding = "".concat(this.text.padding, "px");
      domElement.style.maxWidth = "".concat(this.text.wrap, "em");
      domElement.style.color = this.text.color;

      if (this.text.size > 0) {
        domElement.style.fontSize = "".concat(this.text.size, "px");
      }

      domElement.style.fontFamily = this.text.font.join(',');
      domElement.style.textTransform = this.text.transform;
      domElement.style.letterSpacing = "".concat(this.text.spacing, "em");
      domElement.style.textAlign = this.text.justify;
      domElement.style['white-space'] = 'pre-line';

      if (this.text.haloWidth > 0) {
        domElement.style.setProperty('--text_stroke_display', 'block');
        domElement.style.setProperty('--text_stroke_width', "".concat(this.text.haloWidth, "px"));
        domElement.style.setProperty('--text_stroke_color', this.text.haloColor);
        domElement.setAttribute('data-before', domElement.textContent);
      }

      if (!this.icon.source && !this.icon.key) {
        return;
      }

      var image = this.icon.source;
      var size = this.icon.size;
      var key = this.icon.key;
      var icon = cacheStyle.get(image || key, size);

      if (!icon) {
        if (key && sprites) {
          icon = getImage(sprites, key);
        } else {
          icon = getImage(image);
        }

        cacheStyle.set(icon, image || key, size);
      }

      var addIcon = function () {
        var cIcon = icon.cloneNode();
        cIcon.setAttribute('class', 'itowns-icon');
        cIcon.width = icon.width * _this2.icon.size;
        cIcon.height = icon.height * _this2.icon.size;
        cIcon.style.position = 'absolute';
        cIcon.style.top = '0';
        cIcon.style.left = '0';

        switch (_this2.icon.anchor) {
          // center by default
          case 'left':
            cIcon.style.top = "".concat(-0.5 * cIcon.height, "px");
            break;

          case 'right':
            cIcon.style.top = "".concat(-0.5 * cIcon.height, "px");
            cIcon.style.left = "".concat(-cIcon.width, "px");
            break;

          case 'top':
            cIcon.style.left = "".concat(-0.5 * cIcon.width, "px");
            break;

          case 'bottom':
            cIcon.style.top = "".concat(-cIcon.height, "px");
            cIcon.style.left = "".concat(-0.5 * cIcon.width, "px");
            break;

          case 'bottom-left':
            cIcon.style.top = "".concat(-cIcon.height, "px");
            break;

          case 'bottom-right':
            cIcon.style.top = "".concat(-cIcon.height, "px");
            cIcon.style.left = "".concat(-cIcon.width, "px");
            break;

          case 'top-left':
            break;

          case 'top-right':
            cIcon.style.left = "".concat(-cIcon.width, "px");
            break;

          case 'center':
          default:
            cIcon.style.top = "".concat(-0.5 * cIcon.height, "px");
            cIcon.style.left = "".concat(-0.5 * cIcon.width, "px");
            break;
        }

        cIcon.style['z-index'] = -1;
        domElement.appendChild(cIcon);
        icon.removeEventListener('load', addIcon);
      };

      if (icon.complete) {
        addIcon();
      } else {
        icon.addEventListener('load', addIcon);
      }
    }
    /**
     * Gets the values corresponding to the anchor of the text. It is
     * proportions, to use with a `translate()` and a `transform` property.
     *
     * @return {number[]} Two percentage values, for x and y respectively.
     */

  }, {
    key: "getTextAnchorPosition",
    value: function getTextAnchorPosition() {
      if (typeof this.text.anchor === 'string') {
        if (Object.keys(textAnchorPosition).includes(this.text.anchor)) {
          return textAnchorPosition[this.text.anchor];
        } else {
          console.error("".concat(this.text.anchor, " is not a valid input for Style.text.anchor parameter."));
          return textAnchorPosition.center;
        }
      } else {
        return this.text.anchor;
      }
    }
    /**
     * Returns a string, associating `style.text.field` and properties to use to
     * replace the keys in `style.text.field`.
     *
     * @param {Object} ctx - An object containing the feature context.
     *
     * @return {string|undefined} The formatted string if `style.text.field` is defined, nothing otherwise.
     */

  }, {
    key: "getTextFromProperties",
    value: function getTextFromProperties(ctx) {
      if (!this.text.field) {
        return;
      }

      if (this.text.field.expression) {
        return readExpression(this.text.field, ctx);
      } else {
        return this.text.field.replace(/\{(.+?)\}/g, function (a, b) {
          return ctx.properties()[b] || '';
        }).trim();
      }
    }
  }]);
  return Style;
}(); // Add custom style sheet with iTowns specifics


var CustomStyle = {
  itowns_stroke_single_before: itowns_stroke_single_before
};
var customStyleSheet = document.createElement('style');
customStyleSheet.type = 'text/css';
Object.keys(CustomStyle).forEach(function (key) {
  customStyleSheet.innerHTML += "".concat(CustomStyle[key], "\n\n");
});
document.getElementsByTagName('head')[0].appendChild(customStyleSheet);
var style = new Style();
style_properties.fill = Object.keys(style.fill);
style_properties.stroke = Object.keys(style.stroke);
style_properties.point = Object.keys(style.point);
style_properties.text = Object.keys(style.text);
style_properties.icon = Object.keys(style.icon);
var _default = Style;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/System/Capabilities.js":
/*!*************************************************************!*\
  !*** ./node_modules/itowns/lib/Core/System/Capabilities.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

/* babel-plugin-inline-import '../../Renderer/Shader/SampleTestFS.glsl' */
var SampleTestFS = "uniform sampler2D uni[SAMPLE];\nvoid main() {\n    gl_FragColor += texture2D(uni[SAMPLE-1], vec2(0));\n}";

/* babel-plugin-inline-import '../../Renderer/Shader/SampleTestVS.glsl' */
var SampleTestVS = "void main() {\n    gl_Position = vec4( 0.0, 0.0, 0.0, 1.0 );\n}"; // default values

var logDepthBufferSupported = false;
var maxTexturesUnits = 8;
var maxTextureSize = 4096;

function _WebGLShader(renderer, type, string) {
  var gl = renderer.getContext();
  var shader = gl.createShader(type);
  gl.shaderSource(shader, string);
  gl.compileShader(shader);
  return shader;
}

function isFirefox() {
  return navigator && navigator.userAgent && navigator.userAgent.toLowerCase().includes('firefox');
}

var _default = {
  isLogDepthBufferSupported: function isLogDepthBufferSupported() {
    return logDepthBufferSupported;
  },
  isFirefox: isFirefox,
  isInternetExplorer: function isInternetExplorer() {
    var internetExplorer =  false || !!document.documentMode;
    return internetExplorer;
  },
  getMaxTextureUnitsCount: function getMaxTextureUnitsCount() {
    return maxTexturesUnits;
  },
  getMaxTextureSize: function getMaxTextureSize() {
    return maxTextureSize;
  },
  updateCapabilities: function updateCapabilities(renderer) {
    var gl = renderer.getContext();
    maxTexturesUnits = gl.getParameter(gl.MAX_TEXTURE_IMAGE_UNITS);
    maxTextureSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
    var program = gl.createProgram();

    var glVertexShader = _WebGLShader(renderer, gl.VERTEX_SHADER, SampleTestVS);

    var fragmentShader = "#define SAMPLE ".concat(maxTexturesUnits, "\n");
    fragmentShader += SampleTestFS;

    var glFragmentShader = _WebGLShader(renderer, gl.FRAGMENT_SHADER, fragmentShader);

    gl.attachShader(program, glVertexShader);
    gl.attachShader(program, glFragmentShader);
    gl.linkProgram(program);

    if (gl.getProgramParameter(program, gl.LINK_STATUS) === false) {
      if (maxTexturesUnits > 16) {
        var info = gl.getProgramInfoLog(program); // eslint-disable-next-line no-console

        console.warn("".concat(info, ": using a maximum of 16 texture units instead of the reported value (").concat(maxTexturesUnits, ")"));

        if (isFirefox()) {
          // eslint-disable-next-line no-console
          console.warn("It can come from a Mesa/Firefox bug;\n                        the shader compiles to an error when using more than 16 sampler uniforms,\n                        see https://bugzilla.mozilla.org/show_bug.cgi?id=777028");
        }

        maxTexturesUnits = 16;
      } else {
        throw new Error("The GPU capabilities could not be determined accurately.\n                    Impossible to link a shader with the Maximum texture units ".concat(maxTexturesUnits));
      }
    }

    gl.deleteProgram(program);
    gl.deleteShader(glVertexShader);
    gl.deleteShader(glFragmentShader);
    logDepthBufferSupported = renderer.capabilities.logarithmicDepthBuffer;
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/TileGeometry.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Core/TileGeometry.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _computeBufferTileGeometry = _interopRequireDefault(__webpack_require__(/*! ./Prefab/computeBufferTileGeometry */ "./node_modules/itowns/lib/Core/Prefab/computeBufferTileGeometry.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function defaultBuffers(params) {
  params.buildIndexAndUv_0 = true;
  params.center = params.builder.center(params.extent).clone();
  var buffers = (0, _computeBufferTileGeometry["default"])(params);
  buffers.index = new THREE.BufferAttribute(buffers.index, 1);
  buffers.uvs[0] = new THREE.BufferAttribute(buffers.uvs[0], 2);
  buffers.position = new THREE.BufferAttribute(buffers.position, 3);
  buffers.normal = new THREE.BufferAttribute(buffers.normal, 3);

  for (var i = 1; i < params.builder.uvCount; i++) {
    buffers.uvs[1] = new THREE.BufferAttribute(buffers.uvs[1], 1);
  }

  return buffers;
}

var TileGeometry = /*#__PURE__*/function (_THREE$BufferGeometry) {
  (0, _inherits2["default"])(TileGeometry, _THREE$BufferGeometry);

  var _super = _createSuper(TileGeometry);

  function TileGeometry(params) {
    var _this;

    var buffers = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : defaultBuffers(params);
    (0, _classCallCheck2["default"])(this, TileGeometry);
    _this = _super.call(this);
    _this.center = params.center;
    _this.extent = params.extent;

    _this.setIndex(buffers.index);

    _this.setAttribute('position', buffers.position);

    _this.setAttribute('normal', buffers.normal);

    for (var i = 0; i < buffers.uvs.length; i++) {
      _this.setAttribute("uv_".concat(i), buffers.uvs[i]);
    }

    _this.computeBoundingBox();

    _this.OBB = {};
    return _this;
  }

  return (0, _createClass2["default"])(TileGeometry);
}(THREE.BufferGeometry);

var _default = TileGeometry;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/TileMesh.js":
/*!**************************************************!*\
  !*** ./node_modules/itowns/lib/Core/TileMesh.js ***!
  \**************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ./Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

var _GeoidLayer = __webpack_require__(/*! ../Layer/GeoidLayer */ "./node_modules/itowns/lib/Layer/GeoidLayer.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

var _tms = /*#__PURE__*/new WeakMap();

/**
 * A TileMesh is a THREE.Mesh with a geometricError and an OBB
 * The objectId property of the material is the with the id of the TileMesh
 * @constructor
 * @param {TileGeometry} geometry - the tile geometry
 * @param {THREE.Material} material - a THREE.Material compatible with THREE.Mesh
 * @param {Layer} layer - the layer the tile is added to
 * @param {Extent} extent - the tile extent
 * @param {?number} level - the tile level (default = 0)
 */
var TileMesh = /*#__PURE__*/function (_THREE$Mesh) {
  (0, _inherits2["default"])(TileMesh, _THREE$Mesh);

  var _super = _createSuper(TileMesh);

  function TileMesh(geometry, material, layer, extent) {
    var _this;

    var level = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
    (0, _classCallCheck2["default"])(this, TileMesh);
    _this = _super.call(this, geometry, material);

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _tms, {
      writable: true,
      value: new Map()
    });

    if (!extent) {
      throw new Error('extent is mandatory to build a TileMesh');
    }

    _this.layer = layer;
    _this.extent = extent;
    _this.extent.zoom = level;
    _this.level = level;
    _this.material.objectId = _this.id;
    _this.obb = _this.geometry.OBB.clone();
    _this.boundingSphere = new THREE.Sphere();

    _this.obb.box3D.getBoundingSphere(_this.boundingSphere);

    var _iterator = _createForOfIteratorHelper(layer.tileMatrixSets),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var tms = _step.value;
        (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _tms).set(tms, _this.extent.tiledCovering(tms));
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }

    _this.frustumCulled = false;
    _this.matrixAutoUpdate = false;
    _this.rotationAutoUpdate = false;
    _this.layerUpdateState = {};
    _this.isTileMesh = true;
    _this.domElements = {};
    _this.geoidHeight = 0;
    _this.link = [];
    return _this;
  }
  /**
   * If specified, update the min and max elevation of the OBB
   * and updates accordingly the bounding sphere and the geometric error
   *
   * @param {Object}  elevation
   * @param {number}  [elevation.min]
   * @param {number}  [elevation.max]
   * @param {number}  [elevation.scale]
   */


  (0, _createClass2["default"])(TileMesh, [{
    key: "setBBoxZ",
    value: function setBBoxZ(elevation) {
      elevation.geoidHeight = (0, _GeoidLayer.geoidLayerIsVisible)(this.layer) ? this.geoidHeight : 0;
      this.obb.updateZ(elevation);

      if (this.horizonCullingPointElevationScaled) {
        this.horizonCullingPointElevationScaled.setLength(this.obb.z.delta + this.horizonCullingPoint.length());
      }

      this.obb.box3D.getBoundingSphere(this.boundingSphere);
    }
  }, {
    key: "getExtentsByProjection",
    value: function getExtentsByProjection(crs) {
      return (0, _classPrivateFieldGet2["default"])(this, _tms).get(_Crs["default"].formatToTms(crs));
    }
    /**
     * Search for a common ancestor between this tile and another one. It goes
     * through parents on each side until one is found.
     *
     * @param {TileMesh} tile
     *
     * @return {TileMesh} the resulting common ancestor
     */

  }, {
    key: "findCommonAncestor",
    value: function findCommonAncestor(tile) {
      if (!tile) {
        return undefined;
      }

      if (tile.level == this.level) {
        if (tile.id == this.id) {
          return tile;
        } else if (tile.level != 0) {
          return this.parent.findCommonAncestor(tile.parent);
        } else {
          return undefined;
        }
      } else if (tile.level < this.level) {
        return this.parent.findCommonAncestor(tile);
      } else {
        return this.findCommonAncestor(tile.parent);
      }
    }
  }, {
    key: "onBeforeRender",
    value: function onBeforeRender() {
      if (this.material.layersNeedUpdate) {
        this.material.updateLayersUniforms();
      }
    }
  }, {
    key: "findClosestDomElement",
    value: function findClosestDomElement(id) {
      if (this.parent.isTileMesh) {
        return this.parent.domElements[id] || this.parent.findClosestDomElement(id);
      }
    }
  }]);
  return TileMesh;
}(THREE.Mesh);

var _default = TileMesh;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Core/View.js":
/*!**********************************************!*\
  !*** ./node_modules/itowns/lib/Core/View.js ***!
  \**********************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.VIEW_EVENTS = void 0;

var _toConsumableArray2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/toConsumableArray */ "./node_modules/@babel/runtime/helpers/toConsumableArray.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

var _classPrivateFieldSet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldSet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Camera = _interopRequireDefault(__webpack_require__(/*! ../Renderer/Camera */ "./node_modules/itowns/lib/Renderer/Camera.js"));

var _MainLoop = _interopRequireWildcard(__webpack_require__(/*! ./MainLoop */ "./node_modules/itowns/lib/Core/MainLoop.js"));

var _Capabilities = _interopRequireDefault(__webpack_require__(/*! ./System/Capabilities */ "./node_modules/itowns/lib/Core/System/Capabilities.js"));

var _ColorLayersOrdering = __webpack_require__(/*! ../Renderer/ColorLayersOrdering */ "./node_modules/itowns/lib/Renderer/ColorLayersOrdering.js");

var _c3DEngine = _interopRequireDefault(__webpack_require__(/*! ../Renderer/c3DEngine */ "./node_modules/itowns/lib/Renderer/c3DEngine.js"));

var _RenderMode = _interopRequireDefault(__webpack_require__(/*! ../Renderer/RenderMode */ "./node_modules/itowns/lib/Renderer/RenderMode.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ./Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ./Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _FeaturesUtils = _interopRequireDefault(__webpack_require__(/*! ../Utils/FeaturesUtils */ "./node_modules/itowns/lib/Utils/FeaturesUtils.js"));

var _LayeredMaterial = __webpack_require__(/*! ../Renderer/LayeredMaterial */ "./node_modules/itowns/lib/Renderer/LayeredMaterial.js");

var _Scheduler = _interopRequireDefault(__webpack_require__(/*! ./Scheduler/Scheduler */ "./node_modules/itowns/lib/Core/Scheduler/Scheduler.js"));

var _Picking = _interopRequireDefault(__webpack_require__(/*! ./Picking */ "./node_modules/itowns/lib/Core/Picking.js"));

var _LabelLayer = _interopRequireDefault(__webpack_require__(/*! ../Layer/LabelLayer */ "./node_modules/itowns/lib/Layer/LabelLayer.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

var VIEW_EVENTS = {
  /**
   * Fires when all the layers of the view are considered initialized.
   * Initialized in this context means: all layers are ready to be
   * displayed (no pending network access, no visual improvement to be
   * expected, ...).
   * If you add new layers, the event will be fired again when all
   * layers are ready.
   * @event View#layers-initialized
   * @property type {string} layers-initialized
   */
  LAYERS_INITIALIZED: 'layers-initialized',
  LAYER_REMOVED: 'layer-removed',
  LAYER_ADDED: 'layer-added',
  INITIALIZED: 'initialized',
  COLOR_LAYERS_ORDER_CHANGED: _ColorLayersOrdering.COLOR_LAYERS_ORDER_CHANGED,
  CAMERA_MOVED: 'camera-moved'
};
/**
 * Fired on current view's domElement when double right-clicking it. Copies all properties of the second right-click
 * MouseEvent (such as cursor position).
 * @event View#dblclick-right
 * @property {string} type  dblclick-right
 */

exports.VIEW_EVENTS = VIEW_EVENTS;

var _syncGeometryLayerVisibility = function (layer, view) {
  if (layer.object3d) {
    layer.object3d.visible = layer.visible;
  }

  if (layer.threejsLayer) {
    if (layer.visible) {
      view.camera.camera3D.layers.enable(layer.threejsLayer);
    } else {
      view.camera.camera3D.layers.disable(layer.threejsLayer);
    }
  }
};

function _preprocessLayer(view, layer, parentLayer) {
  var source = layer.source;

  if (parentLayer && !layer.extent) {
    layer.extent = parentLayer.extent;

    if (source && !source.extent) {
      source.extent = parentLayer.extent;
    }
  }

  if (layer.isGeometryLayer) {
    if (parentLayer) {
      // layer.threejsLayer *must* be assigned before preprocessing,
      // because TileProvider.preprocessDataLayer function uses it.
      layer.threejsLayer = view.mainLoop.gfxEngine.getUniqueThreejsLayer();
    }

    layer.defineLayerProperty('visible', true, function () {
      return _syncGeometryLayerVisibility(layer, view);
    });

    _syncGeometryLayerVisibility(layer, view); // Find crs projection layer, this is projection destination


    layer.crs = view.referenceCrs;
  } else if (!layer.crs) {
    if (parentLayer && parentLayer.tileMatrixSets && parentLayer.tileMatrixSets.includes(_Crs["default"].formatToTms(source.crs))) {
      layer.crs = source.crs;
    } else {
      layer.crs = parentLayer && parentLayer.extent.crs;
    }
  }

  if (layer.isLabelLayer) {
    view.mainLoop.gfxEngine.label2dRenderer.registerLayer(layer);
  } else if (layer.labelEnabled || layer.addLabelLayer) {
    if (layer.labelEnabled) {
      // eslint-disable-next-line no-console
      console.info('layer.labelEnabled is deprecated use addLabelLayer, instead of');
    } // Because the features are shared between layer and labelLayer.


    layer.buildExtent = true;
    var labelLayer = new _LabelLayer["default"]("".concat(layer.id, "-label"), {
      source: source,
      style: layer.style,
      zoom: layer.zoom,
      crs: source.crs,
      visible: layer.visible,
      margin: 15
    });
    layer.addEventListener('visible-property-changed', function () {
      labelLayer.visible = layer.visible;
    });

    var removeLabelLayer = function (e) {
      if (e.layerId === layer.id) {
        view.removeLayer(labelLayer.id);
      }

      view.removeEventListener(VIEW_EVENTS.LAYER_REMOVED, removeLabelLayer);
    };

    view.addEventListener(VIEW_EVENTS.LAYER_REMOVED, removeLabelLayer);
    layer.whenReady = layer.whenReady.then(function () {
      view.addLayer(labelLayer);
      return layer;
    });
  }

  return layer;
}

var _eventCoords = new THREE.Vector2();

var matrix = new THREE.Matrix4();
var screen = new THREE.Vector2();
var ray = new THREE.Ray();
var direction = new THREE.Vector3();
var positionVector = new THREE.Vector3();
var coordinates = new _Coordinates["default"]('EPSG:4326');
var viewers = []; // Size of the camera frustrum, in meters

var screenMeters;

var _layers = /*#__PURE__*/new WeakMap();

var _pixelDepthBuffer = /*#__PURE__*/new WeakMap();

var _fullSizeDepthBuffer = /*#__PURE__*/new WeakMap();

var View = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(View, _THREE$EventDispatche);

  var _super = _createSuper(View);

  /**
   * Constructs an Itowns View instance
   *
   * @example <caption><b>Create a view with a custom Three.js camera.</b></caption>
   * var viewerDiv = document.getElementById('viewerDiv');
   * var customCamera = itowns.THREE.PerspectiveCamera();
   * var view = itowns.View('EPSG:4326', viewerDiv, { camera: { cameraThree: customCamera } });
   *
   * @example <caption><b>Create a view with an orthographic camera, and grant it with Three.js custom controls.</b></caption>
   * var viewerDiv = document.getElementById('viewerDiv');
   * var view = itowns.View('EPSG:4326', viewerDiv, { camera: { type: itowns.CAMERA_TYPE.ORTHOGRAPHIC } });
   * var customControls = itowns.THREE.OrbitControls(view.camera.camera3D, viewerDiv);
   *
   * @example <caption><b>Enable WebGl 1.0 instead of WebGl 2.0.</b></caption>
   * var viewerDiv = document.getElementById('viewerDiv');
   * const extent = new Extent('EPSG:3946', 1837816.94334, 1847692.32501, 5170036.4587, 5178412.82698);
   * var view = new itowns.View('EPSG:4326', viewerDiv, {  renderer: { isWebGL2: false } });
   *
   * @param {string} crs - The default CRS of Three.js coordinates. Should be a cartesian CRS.
   * @param {HTMLElement} viewerDiv - Where to instanciate the Three.js scene in the DOM
   * @param {Object=} options - Optional properties.
   * @param {object} [options.camera] - Options for the camera associated to the view. See {@link Camera} options.
   * @param {?MainLoop} options.mainLoop - {@link MainLoop} instance to use, otherwise a default one will be constructed
   * @param {?(WebGLRenderer|object)} options.renderer - {@link WebGLRenderer} instance to use, otherwise
   * a default one will be constructed. In this case, if options.renderer is an object, it will be used to
   * configure the renderer (see {@link c3DEngine}.  If not present, a new &lt;canvas> will be created and
   * added to viewerDiv (mutually exclusive with mainLoop)
   * @param {boolean} [options.renderer.isWebGL2=true] - enable webgl 2.0 for THREE.js.
   * @param {?Scene} [options.scene3D] - [THREE.Scene](https://threejs.org/docs/#api/en/scenes/Scene) instance to use, otherwise a default one will be constructed
   * @param {?Color} options.diffuse - [THREE.Color](https://threejs.org/docs/?q=color#api/en/math/Color) Diffuse color terrain material.
   * This color is applied to terrain if there isn't color layer on terrain extent (by example on pole).
   *
   * @constructor
   */
  function View(crs, viewerDiv) {
    var _this;

    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    (0, _classCallCheck2["default"])(this, View);

    if (!viewerDiv) {
      throw new Error('Invalid viewerDiv parameter (must non be null/undefined)');
    }

    _this = _super.call(this);

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _layers, {
      writable: true,
      value: []
    });

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _pixelDepthBuffer, {
      writable: true,
      value: new Uint8Array(4)
    });

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _fullSizeDepthBuffer, {
      writable: true,
      value: void 0
    });

    _this.domElement = viewerDiv;
    _this.referenceCrs = crs;
    var engine; // options.renderer can be 2 separate things:
    //   - an actual renderer (in this case we don't use viewerDiv)
    //   - options for the renderer to be created

    if (options.renderer && options.renderer.domElement) {
      engine = new _c3DEngine["default"](options.renderer);
    } else {
      engine = new _c3DEngine["default"](viewerDiv, options.renderer);
    }

    _this.mainLoop = options.mainLoop || new _MainLoop["default"](new _Scheduler["default"](), engine);
    _this.scene = options.scene3D || new THREE.Scene();

    if (!options.scene3D) {
      _this.scene.autoUpdate = false;
    }

    _this.camera = new _Camera["default"](_this.referenceCrs, _this.mainLoop.gfxEngine.getWindowSize().x, _this.mainLoop.gfxEngine.getWindowSize().y, options.camera);
    _this._frameRequesters = {};
    window.addEventListener('resize', function () {
      return _this.resize();
    }, false);
    _this._changeSources = new Set();
    _this._delayedFrameRequesterRemoval = [];

    _this._allLayersAreReadyCallback = function () {
      // all layers must be ready
      var allReady = _this.getLayers().every(function (layer) {
        return layer.ready;
      });

      if (allReady && _this.mainLoop.scheduler.commandsWaitingExecutionCount() == 0 && _this.mainLoop.renderingState == _MainLoop.RENDERING_PAUSED) {
        _this.dispatchEvent({
          type: VIEW_EVENTS.LAYERS_INITIALIZED
        });

        _this.removeFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.UPDATE_END, _this._allLayersAreReadyCallback);
      }
    };

    _this.camera.resize(_this.domElement.clientWidth, _this.domElement.clientHeight);

    var fn = function () {
      _this.removeEventListener(VIEW_EVENTS.LAYERS_INITIALIZED, fn);

      _this.dispatchEvent({
        type: VIEW_EVENTS.INITIALIZED
      });
    };

    _this.addEventListener(VIEW_EVENTS.LAYERS_INITIALIZED, fn);

    (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _fullSizeDepthBuffer, new Uint8Array(4 * _this.camera.width * _this.camera.height)); // Indicates that view's domElement can be focused (the negative value indicates that domElement can't be
    // focused sequentially using tab key). Focus is needed to capture some key events.

    _this.domElement.tabIndex = -1; // Set focus on view's domElement.

    _this.domElement.focus(); // Create a custom `dblclick-right` event that is triggered when double right-clicking


    var rightClickTimeStamp;

    _this.domElement.addEventListener('mouseup', function (event) {
      if (event.button === 2) {
        // If pressed mouse button is right button
        // If time between two right-clicks is bellow 500 ms, triggers a `dblclick-right` event
        if (rightClickTimeStamp && event.timeStamp - rightClickTimeStamp < 500) {
          _this.domElement.dispatchEvent(new MouseEvent('dblclick-right', event));
        }

        rightClickTimeStamp = event.timeStamp;
      }
    }); // push all viewer to keep source.cache


    viewers.push((0, _assertThisInitialized2["default"])(_this));
    return _this;
  }
  /**
   * Dispose viewer before delete it.
   *
   * Method dispose all viewer objects
   * - remove control
   * - remove all layers
   * - remove all frame requester
   * - remove all events
   */


  (0, _createClass2["default"])(View, [{
    key: "dispose",
    value: function dispose() {
      var id = viewers.indexOf(this);

      if (id == -1) {
        console.warn('View already disposed');
        return;
      } // controls dispose


      if (this.controls && this.controls.dispose) {
        this.controls.dispose();
      } // remove alls frameRequester


      this.removeAllFrameRequesters(); // remove alls events

      this.removeAllEvents(); // remove alls layers

      var layers = this.getLayers(function (l) {
        return !l.isTiledGeometryLayer && !l.isAtmosphere;
      });

      var _iterator = _createForOfIteratorHelper(layers),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var layer = _step.value;
          this.removeLayer(layer.id);
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      var atmospheres = this.getLayers(function (l) {
        return l.isAtmosphere;
      });

      var _iterator2 = _createForOfIteratorHelper(atmospheres),
          _step2;

      try {
        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
          var atmosphere = _step2.value;
          this.removeLayer(atmosphere.id);
        }
      } catch (err) {
        _iterator2.e(err);
      } finally {
        _iterator2.f();
      }

      var tileLayers = this.getLayers(function (l) {
        return l.isTiledGeometryLayer;
      });

      var _iterator3 = _createForOfIteratorHelper(tileLayers),
          _step3;

      try {
        for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
          var tileLayer = _step3.value;
          this.removeLayer(tileLayer.id);
        }
      } catch (err) {
        _iterator3.e(err);
      } finally {
        _iterator3.f();
      }

      viewers.splice(id, 1);
    }
    /**
     * Add layer in viewer.
     * The layer id must be unique.
     *
     * The `layer.whenReady` is a promise that resolves when
     * the layer is done. This promise is also returned by
     * `addLayer` allowing to chain call.
     *
     * @param {LayerOptions|Layer|GeometryLayer} layer The layer to add in view.
     * @param {Layer=} parentLayer it's the layer to which the layer will be attached.
     * @return {Promise} a promise resolved with the new layer object when it is fully initialized or rejected if any error occurred.
     */

  }, {
    key: "addLayer",
    value: function addLayer(layer, parentLayer) {
      var _this2 = this;

      if (!layer || !layer.isLayer) {
        return Promise.reject(new Error('Add Layer type object'));
      }

      var duplicate = this.getLayerById(layer.id);

      if (duplicate) {
        return layer._reject(new Error("Invalid id '".concat(layer.id, "': id already used")));
      }

      layer = _preprocessLayer(this, layer, parentLayer);

      if (parentLayer) {
        if (layer.isColorLayer) {
          var layerColors = this.getLayers(function (l) {
            return l.isColorLayer;
          });
          layer.sequence = layerColors.length;
          var sumColorLayers = parentLayer.countColorLayersTextures.apply(parentLayer, (0, _toConsumableArray2["default"])(layerColors).concat([layer]));

          if (sumColorLayers <= (0, _LayeredMaterial.getMaxColorSamplerUnitsCount)()) {
            parentLayer.attach(layer);
          } else {
            return layer._reject(new Error("Cant add color layer ".concat(layer.id, ": the maximum layer is reached")));
          }
        } else if (layer.isElevationLayer && layer.source.format == 'image/x-bil;bits=32') {
          layer.source.networkOptions.isWebGL2 = this.mainLoop.gfxEngine.renderer.capabilities.isWebGL2;
          parentLayer.attach(layer);
        } else {
          parentLayer.attach(layer);
        }
      } else {
        if (typeof layer.update !== 'function') {
          return layer._reject(new Error('Cant add GeometryLayer: missing a update function'));
        }

        if (typeof layer.preUpdate !== 'function') {
          return layer._reject(new Error('Cant add GeometryLayer: missing a preUpdate function'));
        }

        (0, _classPrivateFieldGet2["default"])(this, _layers).push(layer);
      }

      if (layer.object3d && !layer.object3d.parent && layer.object3d !== this.scene) {
        this.scene.add(layer.object3d);
      }

      Promise.all(layer._promises).then(function () {
        layer._resolve();

        _this2.notifyChange(parentLayer || layer, false);

        if (!_this2._frameRequesters[_MainLoop.MAIN_LOOP_EVENTS.UPDATE_END] || !_this2._frameRequesters[_MainLoop.MAIN_LOOP_EVENTS.UPDATE_END].includes(_this2._allLayersAreReadyCallback)) {
          _this2.addFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.UPDATE_END, _this2._allLayersAreReadyCallback);
        }

        _this2.dispatchEvent({
          type: VIEW_EVENTS.LAYER_ADDED,
          layerId: layer.id
        });
      }, layer._reject);
      return layer.whenReady;
    }
    /**
     * Removes a specific imagery layer from the current layer list. This removes layers inserted with attach().
     * @example
     * view.removeLayer('layerId');
     * @param      {string}   layerId      The identifier
     * @return     {boolean}
     */

  }, {
    key: "removeLayer",
    value: function removeLayer(layerId) {
      var layer = this.getLayerById(layerId);

      if (layer) {
        var parentLayer = layer.parent; // Remove and dispose all nodes

        layer["delete"](); // Detach layer if it's attached

        if (parentLayer && !parentLayer.detach(layer)) {
          throw new Error("Error to detach ".concat(layerId, " from ").concat(parentLayer.id));
        } else if (parentLayer == undefined) {
          // Remove layer from viewer
          (0, _classPrivateFieldGet2["default"])(this, _layers).splice((0, _classPrivateFieldGet2["default"])(this, _layers).findIndex(function (l) {
            return l.id == layerId;
          }), 1);
        }

        if (layer.isColorLayer) {
          // Update color layers sequence
          var imageryLayers = this.getLayers(function (l) {
            return l.isColorLayer;
          });

          var _iterator4 = _createForOfIteratorHelper(imageryLayers),
              _step4;

          try {
            for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
              var color = _step4.value;

              if (color.sequence > layer.sequence) {
                color.sequence--;
              }
            }
          } catch (err) {
            _iterator4.e(err);
          } finally {
            _iterator4.f();
          }
        } // Remove unused cache in all viewers
        // count of times the source is used in all viewer


        var sharedSourceCount = 0;

        var _iterator5 = _createForOfIteratorHelper(viewers),
            _step5;

        try {
          for (_iterator5.s(); !(_step5 = _iterator5.n()).done;) {
            var view = _step5.value;
            // add count of times the source is used in other layers
            sharedSourceCount += view.getLayers(function (l) {
              return l.source.uid == layer.source.uid && l.crs == layer.crs;
            }).length;
          } // if sharedSourceCount equals to 0 so remove unused cache for this CRS

        } catch (err) {
          _iterator5.e(err);
        } finally {
          _iterator5.f();
        }

        layer.source.onLayerRemoved({
          unusedCrs: sharedSourceCount == 0 ? layer.crs : undefined
        });
        this.notifyChange(this.camera);
        this.dispatchEvent({
          type: VIEW_EVENTS.LAYER_REMOVED,
          layerId: layerId
        });
        return true;
      } else {
        throw new Error("".concat(layerId, " doesn't exist"));
      }
    }
    /**
     * Notifies the scene it needs to be updated due to changes exterior to the
     * scene itself (e.g. camera movement).
     * non-interactive events (e.g: texture loaded)
     * @param {*} changeSource
     * @param {boolean} needsRedraw - indicates if notified change requires a full scene redraw.
     */

  }, {
    key: "notifyChange",
    value: function notifyChange() {
      var changeSource = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined;
      var needsRedraw = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      if (changeSource) {
        this._changeSources.add(changeSource);

        if (changeSource.isTileMesh || changeSource.isCamera) {
          (0, _classPrivateFieldGet2["default"])(this, _fullSizeDepthBuffer).needsUpdate = true;
        }
      }

      this.mainLoop.scheduleViewUpdate(this, needsRedraw);
    }
    /**
     * Get all layers, with an optionnal filter applied.
     * The filter method will be called with 2 args:
     *   - 1st: current layer
     *   - 2nd: (optional) the geometry layer to which the current layer is attached
     * @example
     * // get all layers
     * view.getLayers();
     * // get all color layers
     * view.getLayers(layer => layer.isColorLayer);
     * // get all elevation layers
     * view.getLayers(layer => layer.isElevationLayer);
     * // get all geometry layers
     * view.getLayers(layer => layer.isGeometryLayer);
     * // get one layer with id
     * view.getLayers(layer => layer.id === 'itt');
     * @param {function(Layer):boolean} filter
     * @returns {Array<Layer>}
     */

  }, {
    key: "getLayers",
    value: function getLayers(filter) {
      var result = [];

      var _iterator6 = _createForOfIteratorHelper((0, _classPrivateFieldGet2["default"])(this, _layers)),
          _step6;

      try {
        for (_iterator6.s(); !(_step6 = _iterator6.n()).done;) {
          var layer = _step6.value;

          if (!filter || filter(layer)) {
            result.push(layer);
          }

          if (layer.attachedLayers) {
            var _iterator7 = _createForOfIteratorHelper(layer.attachedLayers),
                _step7;

            try {
              for (_iterator7.s(); !(_step7 = _iterator7.n()).done;) {
                var attached = _step7.value;

                if (!filter || filter(attached, layer)) {
                  result.push(attached);
                }
              }
            } catch (err) {
              _iterator7.e(err);
            } finally {
              _iterator7.f();
            }
          }
        }
      } catch (err) {
        _iterator6.e(err);
      } finally {
        _iterator6.f();
      }

      return result;
    }
    /**
     * Gets the layer by identifier.
     *
     * @param {String}  layerId  The layer identifier
     * @return {Layer}  The layer by identifier.
     */

  }, {
    key: "getLayerById",
    value: function getLayerById(layerId) {
      return this.getLayers(function (l) {
        return l.id === layerId;
      })[0];
    }
    /**
     * @name FrameRequester
     * @function
     *
     * @description
     * Method that will be called each time the `MainLoop` updates. This function
     * will be given as parameter the delta (in ms) between this update and the
     * previous one, and whether or not we just started to render again. This update
     * is considered as the "next" update if `view.notifyChange` was called during a
     * precedent update. If `view.notifyChange` has been called by something else
     * (other micro/macrotask, UI events etc...), then this update is considered as
     * being the "first". It can also receive optional arguments, depending on the
     * attach point of this function. Currently only `BEFORE_LAYER_UPDATE /
     * AFTER_LAYER_UPDATE` attach points provide an additional argument: the layer
     * being updated.
     * <br><br>
     *
     * This means that if a `frameRequester` function wants to animate something, it
     * should keep on calling `view.notifyChange` until its task is done.
     * <br><br>
     *
     * Implementors of `frameRequester` should keep in mind that this function will
     * be potentially called at each frame, thus care should be given about
     * performance.
     * <br><br>
     *
     * Typical frameRequesters are controls, module wanting to animate moves or UI
     * elements etc... Basically anything that would want to call
     * requestAnimationFrame.
     *
     * @param {number} dt
     * @param {boolean} updateLoopRestarted
     * @param {...*} args
     */

    /**
     * Add a frame requester to this view.
     *
     * FrameRequesters can activate the MainLoop update by calling view.notifyChange.
     *
     * @param {String} when - decide when the frameRequester should be called during
     * the update cycle. Can be any of {@link MAIN_LOOP_EVENTS}.
     * @param {FrameRequester} frameRequester - this function will be called at each
     * MainLoop update with the time delta between last update, or 0 if the MainLoop
     * has just been relaunched.
     */

  }, {
    key: "addFrameRequester",
    value: function addFrameRequester(when, frameRequester) {
      if (typeof frameRequester !== 'function') {
        throw new Error('frameRequester must be a function');
      }

      if (!this._frameRequesters[when]) {
        this._frameRequesters[when] = [frameRequester];
      } else {
        this._frameRequesters[when].push(frameRequester);
      }
    }
    /**
     * Remove a frameRequester.
     * The effective removal will happen either later; at worst it'll be at
     * the beginning of the next frame.
     *
     * @param {String} when - attach point of this requester. Can be any of
     * {@link MAIN_LOOP_EVENTS}.
     * @param {FrameRequester} frameRequester
     */

  }, {
    key: "removeFrameRequester",
    value: function removeFrameRequester(when, frameRequester) {
      if (this._frameRequesters[when].includes(frameRequester)) {
        this._delayedFrameRequesterRemoval.push({
          when: when,
          frameRequester: frameRequester
        });
      } else {
        console.error('Invalid call to removeFrameRequester: frameRequester isn\'t registered');
      }
    }
    /**
     * Removes all frame requesters.
     */

  }, {
    key: "removeAllFrameRequesters",
    value: function removeAllFrameRequesters() {
      for (var when in this._frameRequesters) {
        if (Object.prototype.hasOwnProperty.call(this._frameRequesters, when)) {
          var frameRequesters = this._frameRequesters[when];

          var _iterator8 = _createForOfIteratorHelper(frameRequesters),
              _step8;

          try {
            for (_iterator8.s(); !(_step8 = _iterator8.n()).done;) {
              var frameRequester = _step8.value;
              this.removeFrameRequester(when, frameRequester);
            }
          } catch (err) {
            _iterator8.e(err);
          } finally {
            _iterator8.f();
          }
        }
      }

      this._executeFrameRequestersRemovals();
    }
    /**
     * Removes all viewer events.
     */

  }, {
    key: "removeAllEvents",
    value: function removeAllEvents() {
      if (this._listeners === undefined) {
        return;
      }

      for (var type in this._listeners) {
        if (Object.prototype.hasOwnProperty.call(this._listeners, type)) {
          delete this._listeners[type];
        }
      }

      this._listeners = undefined;
    }
  }, {
    key: "_executeFrameRequestersRemovals",
    value: function _executeFrameRequestersRemovals() {
      var _iterator9 = _createForOfIteratorHelper(this._delayedFrameRequesterRemoval),
          _step9;

      try {
        for (_iterator9.s(); !(_step9 = _iterator9.n()).done;) {
          var toDelete = _step9.value;

          var index = this._frameRequesters[toDelete.when].indexOf(toDelete.frameRequester);

          if (index >= 0) {
            this._frameRequesters[toDelete.when].splice(index, 1);
          } else {
            console.warn('FrameReq has already been removed');
          }
        }
      } catch (err) {
        _iterator9.e(err);
      } finally {
        _iterator9.f();
      }

      this._delayedFrameRequesterRemoval.length = 0;
    }
    /**
     * Execute a frameRequester.
     *
     * @param {String} when - attach point of this (these) requester(s). Can be any
     * of {@link MAIN_LOOP_EVENTS}.
     * @param {Number} dt - delta between this update and the previous one
     * @param {boolean} updateLoopRestarted
     * @param {...*} args - optional arguments
     */

  }, {
    key: "execFrameRequesters",
    value: function execFrameRequesters(when, dt, updateLoopRestarted) {
      if (!this._frameRequesters[when]) {
        return;
      }

      if (this._delayedFrameRequesterRemoval.length > 0) {
        this._executeFrameRequestersRemovals();
      }

      for (var _len = arguments.length, args = new Array(_len > 3 ? _len - 3 : 0), _key = 3; _key < _len; _key++) {
        args[_key - 3] = arguments[_key];
      }

      var _iterator10 = _createForOfIteratorHelper(this._frameRequesters[when]),
          _step10;

      try {
        for (_iterator10.s(); !(_step10 = _iterator10.n()).done;) {
          var frameRequester = _step10.value;

          if (frameRequester.update) {
            frameRequester.update(dt, updateLoopRestarted, args);
          } else {
            frameRequester(dt, updateLoopRestarted, args);
          }
        }
      } catch (err) {
        _iterator10.e(err);
      } finally {
        _iterator10.f();
      }
    }
    /**
     * Extract view coordinates from a mouse-event / touch-event
     * @param {event} event - event can be a MouseEvent or a TouchEvent
     * @param {THREE.Vector2} target - the target to set the view coords in
     * @param {number} [touchIdx=0] - finger index when using a TouchEvent
     * @return {THREE.Vector2|undefined} - view coordinates (in pixels, 0-0 = top-left of the View).
     * If the event is neither a `MouseEvent` nor a `TouchEvent`, the return is `undefined`.
     */

  }, {
    key: "eventToViewCoords",
    value: function eventToViewCoords(event) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : _eventCoords;
      var touchIdx = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
      var br = this.domElement.getBoundingClientRect();

      if (event.touches && event.touches.length) {
        return target.set(event.touches[touchIdx].clientX - br.x, event.touches[touchIdx].clientY - br.y);
      } else if (event.offsetX !== undefined && event.offsetY !== undefined) {
        var targetBoundingRect = event.target.getBoundingClientRect();
        return target.set(targetBoundingRect.x + event.offsetX - br.x, targetBoundingRect.y + event.offsetY - br.y);
      }
    }
    /**
     * Extract normalized coordinates (NDC) from a mouse-event / touch-event
     * @param {event} event - event can be a MouseEvent or a TouchEvent
     * @param {number} touchIdx - finger index when using a TouchEvent (default: 0)
     * @return {THREE.Vector2} - NDC coordinates (x and y are [-1, 1])
     */

  }, {
    key: "eventToNormalizedCoords",
    value: function eventToNormalizedCoords(event) {
      var touchIdx = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
      return this.viewToNormalizedCoords(this.eventToViewCoords(event, _eventCoords, touchIdx));
    }
    /**
     * Convert view coordinates to normalized coordinates (NDC)
     * @param {THREE.Vector2} viewCoords (in pixels, 0-0 = top-left of the View)
     * @param {THREE.Vector2} target
     * @return {THREE.Vector2} - NDC coordinates (x and y are [-1, 1])
     */

  }, {
    key: "viewToNormalizedCoords",
    value: function viewToNormalizedCoords(viewCoords) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : _eventCoords;
      target.x = 2 * (viewCoords.x / this.camera.width) - 1;
      target.y = -2 * (viewCoords.y / this.camera.height) + 1;
      return target;
    }
    /**
     * Convert NDC coordinates to view coordinates
     * @param {THREE.Vector2} ndcCoords
     * @return {THREE.Vector2} - view coordinates (in pixels, 0-0 = top-left of the View)
     */

  }, {
    key: "normalizedToViewCoords",
    value: function normalizedToViewCoords(ndcCoords) {
      _eventCoords.x = (ndcCoords.x + 1) * 0.5 * this.camera.width;
      _eventCoords.y = (ndcCoords.y - 1) * -0.5 * this.camera.height;
      return _eventCoords;
    }
    /**
     * Searches for objects in {@link GeometryLayer} and specified
     * `THREE.Object3D`, under the mouse or at a specified coordinates, in this
     * view.
     *
     * @param {Object} mouseOrEvt - Mouse position in window coordinates (from
     * the top left corner of the window) or `MouseEvent` or `TouchEvent`.
     * @param {number} [radius=0] - The picking will happen in a circle centered
     * on mouseOrEvt. This is the radius of this circle, in pixels.
     * @param {...GeometryLayer|string|Object3D} [where] - Where to look for
     * objects. It can be anything of {@link GeometryLayer}, IDs of layers, or
     * `THREE.Object3D`. If no location is specified, it will query on all
     * {@link GeometryLayer} present in this `View`.
     *
     * @return {Object[]} - An array of objects. Each element contains at least
     * an object property which is the `THREE.Object3D` under the cursor. Then
     * depending on the queried layer/source, there may be additionnal
     * properties (coming from `THREE.Raycaster` for instance).
     *
     * @example
     * view.pickObjectsAt({ x, y })
     * view.pickObjectsAt({ x, y }, 1, 'wfsBuilding')
     * view.pickObjectsAt({ x, y }, 3, 'wfsBuilding', myLayer)
     */

  }, {
    key: "pickObjectsAt",
    value: function pickObjectsAt(mouseOrEvt) {
      var _this3 = this;

      var radius = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;

      for (var _len2 = arguments.length, where = new Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
        where[_key2 - 2] = arguments[_key2];
      }

      var sources = [];
      where = where.length == 0 ? this.getLayers(function (l) {
        return l.isGeometryLayer;
      }) : where;
      where.forEach(function (l) {
        if (typeof l === 'string') {
          l = _this3.getLayerById(l);
        }

        if (l && (l.isGeometryLayer || l.isObject3D)) {
          sources.push(l);
        }
      });

      if (sources.length == 0) {
        return [];
      }

      var results = [];
      var mouse = mouseOrEvt instanceof Event ? this.eventToViewCoords(mouseOrEvt) : mouseOrEvt;

      for (var _i = 0, _sources = sources; _i < _sources.length; _i++) {
        var source = _sources[_i];

        if (source.isGeometryLayer) {
          if (!source.ready) {
            console.warn('view.pickObjectAt : layer is not ready : ', source);
            continue;
          }

          source.pickObjectsAt(this, mouse, radius, results);
        } else {
          _Picking["default"].pickObjectsAt(this, mouse, radius, source, results);
        }
      }

      return results;
    }
    /**
     * Return the current zoom scale at the central point of the view. This
     * function compute the scale of a map.
     *
     * @param {number} pitch - Screen pitch, in millimeters ; 0.28 by default
     *
     * @return {number} The zoom scale.
     */

  }, {
    key: "getScale",
    value: function getScale() {
      var pitch = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0.28;

      if (this.camera.camera3D.isOrthographicCamera) {
        return pitch * 1E-3 / this.getPixelsToMeters();
      }

      return this.getScaleFromDistance(pitch, this.getDistanceFromCamera());
    }
  }, {
    key: "getScaleFromDistance",
    value: function getScaleFromDistance() {
      var pitch = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0.28;
      var distance = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
      pitch /= 1000;
      var fov = THREE.MathUtils.degToRad(this.camera.camera3D.fov);
      var unit = this.camera.height / (2 * distance * Math.tan(fov * 0.5));
      return pitch * unit;
    }
    /**
     * Given a screen coordinates, get the distance between the projected
     * coordinates and the camera associated to this view.
     *
     * @param {THREE.Vector2} [screenCoord] - The screen coordinate to get the
     * distance at. By default this is the middle of the screen.
     *
     * @return {number} The distance in meters.
     */

  }, {
    key: "getDistanceFromCamera",
    value: function getDistanceFromCamera(screenCoord) {
      this.getPickingPositionFromDepth(screenCoord, positionVector);
      return this.camera.camera3D.position.distanceTo(positionVector);
    }
    /**
     * Get, for a specific screen coordinate, the projected distance on the
     * surface of the main layer of the view.
     *
     * @param {number} [pixels=1] - The size, in pixels, to get in meters.
     * @param {THREE.Vector2} [screenCoord] - The screen coordinate to get the
     * projected distance at. By default, this is the middle of the screen.
     *
     * @return {number} The projected distance in meters.
     */

  }, {
    key: "getPixelsToMeters",
    value: function getPixelsToMeters() {
      var pixels = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
      var screenCoord = arguments.length > 1 ? arguments[1] : undefined;

      if (this.camera.camera3D.isOrthographicCamera) {
        screenMeters = (this.camera.camera3D.right - this.camera.camera3D.left) / this.camera.camera3D.zoom;
        return pixels * screenMeters / this.camera.width;
      }

      return this.getPixelsToMetersFromDistance(pixels, this.getDistanceFromCamera(screenCoord));
    }
  }, {
    key: "getPixelsToMetersFromDistance",
    value: function getPixelsToMetersFromDistance() {
      var pixels = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
      var distance = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
      return pixels * distance / this.camera._preSSE;
    }
    /**
     * Get, for a specific screen coordinate, the size in pixels of a projected
     * distance on the surface of the main layer of the view.
     *
     * @param {number} [meters=1] - The size, in meters, to get in pixels.
     * @param {THREE.Vector2} [screenCoord] - The screen coordinate to get the
     * projected distance at. By default, this is the middle of the screen.
     *
     * @return {number} The projected distance in pixels.
     */

  }, {
    key: "getMetersToPixels",
    value: function getMetersToPixels() {
      var meters = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
      var screenCoord = arguments.length > 1 ? arguments[1] : undefined;

      if (this.camera.camera3D.isOrthographicCamera) {
        screenMeters = (this.camera.camera3D.right - this.camera.camera3D.left) / this.camera.camera3D.zoom;
        return meters * this.camera.width / screenMeters;
      }

      return this.getMetersToPixelsFromDistance(meters, this.getDistanceFromCamera(screenCoord));
    }
  }, {
    key: "getMetersToPixelsFromDistance",
    value: function getMetersToPixelsFromDistance() {
      var meters = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
      var distance = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
      return this.camera._preSSE * meters / distance;
    }
    /**
     * Searches for {@link Feature} in {@link ColorLayer}, under the mouse of at
     * a specified coordinates, in this view.
     *
     * @param {Object} mouseOrEvt - Mouse position in window coordinates (from
     * the top left corner of the window) or `MouseEvent` or `TouchEvent`.
     * @param {number} [radius=3] - The picking will happen in a circle centered
     * on mouseOrEvt. This is the radius of this circle, in pixels.
     * @param {...ColorLayer|GeometryLayer|string} [where] - The layers to look
     * into. If not specified, all {@link ColorLayer} and {@link GeometryLayer}
     * layers of this view will be looked in.
     *
     * @return {Object} - An object, with a property per layer. For example,
     * looking for features on layers `wfsBuilding` and `wfsRoads` will give an
     * object like `{ wfsBuilding: [...], wfsRoads: [] }`. Each property is made
     * of an array, that can be empty or filled with found features.
     *
     * @example
     * view.pickFeaturesAt({ x, y });
     * view.pickFeaturesAt({ x, y }, 1, 'wfsBuilding');
     * view.pickFeaturesAt({ x, y }, 3, 'wfsBuilding', myLayer);
     */

  }, {
    key: "pickFeaturesAt",
    value: function pickFeaturesAt(mouseOrEvt) {
      var _this4 = this;

      var radius = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 3;

      for (var _len3 = arguments.length, where = new Array(_len3 > 2 ? _len3 - 2 : 0), _key3 = 2; _key3 < _len3; _key3++) {
        where[_key3 - 2] = arguments[_key3];
      }

      if (Array.isArray(where[0])) {
        console.warn('Deprecated: the ...where argument of View#pickFeaturesAt should not be an array anymore, but a list: use the spread operator if needed.');
        where = where[0];
      }

      var layers = [];
      var result = {};
      where = where.length == 0 ? this.getLayers(function (l) {
        return l.isColorLayer || l.isGeometryLayer;
      }) : where;
      where.forEach(function (l) {
        if (typeof l === 'string') {
          l = _this4.getLayerById(l);
        }

        if (l && l.isLayer) {
          result[l.id] = [];

          if (l.isColorLayer) {
            layers.push(l.id);
          }
        }
      }); // Get the mouse coordinates to the correct system

      var mouse = mouseOrEvt instanceof Event ? this.eventToViewCoords(mouseOrEvt, _eventCoords) : mouseOrEvt;
      var objects = this.pickObjectsAt.apply(this, [mouse, radius].concat((0, _toConsumableArray2["default"])(where)));

      if (objects.length > 0) {
        objects.forEach(function (o) {
          return result[o.layer.id].push(o);
        });
      }

      if (layers.length == 0) {
        return result;
      }

      this.getPickingPositionFromDepth(mouse, positionVector);
      coordinates.crs = this.referenceCrs;
      coordinates.setFromVector3(positionVector); // Get the correct precision; the position variable will be set in this
      // function.

      var precision;
      var precisions = {
        M: this.getPixelsToMeters(radius, mouse),
        D: 0.001 * radius
      };

      if (this.isPlanarView) {
        precisions.D = precisions.M;
      } else if (this.getPixelsToDegrees) {
        precisions.D = this.getMetersToDegrees(precisions.M);
      } // Get the tile corresponding to where the cursor is


      var tiles = _Picking["default"].pickTilesAt(this, mouse, radius, this.tileLayer);

      var _iterator11 = _createForOfIteratorHelper(tiles),
          _step11;

      try {
        for (_iterator11.s(); !(_step11 = _iterator11.n()).done;) {
          var tile = _step11.value;

          if (!tile.object.material) {
            continue;
          }

          var _iterator12 = _createForOfIteratorHelper(tile.object.material.getLayers(layers)),
              _step12;

          try {
            for (_iterator12.s(); !(_step12 = _iterator12.n()).done;) {
              var materialLayer = _step12.value;

              var _iterator13 = _createForOfIteratorHelper(materialLayer.textures),
                  _step13;

              try {
                for (_iterator13.s(); !(_step13 = _iterator13.n()).done;) {
                  var texture = _step13.value;

                  if (!texture.features) {
                    continue;
                  }

                  precision = _Crs["default"].isMetricUnit(texture.features.crs) ? precisions.M : precisions.D;
                  result[materialLayer.id] = result[materialLayer.id].concat(_FeaturesUtils["default"].filterFeaturesUnderCoordinate(coordinates, texture.features, precision));
                }
              } catch (err) {
                _iterator13.e(err);
              } finally {
                _iterator13.f();
              }
            }
          } catch (err) {
            _iterator12.e(err);
          } finally {
            _iterator12.f();
          }
        }
      } catch (err) {
        _iterator11.e(err);
      } finally {
        _iterator11.f();
      }

      return result;
    }
  }, {
    key: "readDepthBuffer",
    value: function readDepthBuffer(x, y, width, height, buffer) {
      var g = this.mainLoop.gfxEngine;
      var currentWireframe = this.tileLayer.wireframe;
      var currentOpacity = this.tileLayer.opacity;
      var currentVisibility = this.tileLayer.visible;

      if (currentWireframe) {
        this.tileLayer.wireframe = false;
      }

      if (currentOpacity < 1.0) {
        this.tileLayer.opacity = 1.0;
      }

      if (!currentVisibility) {
        this.tileLayer.visible = true;
      }

      var restore = this.tileLayer.level0Nodes.map(function (n) {
        return _RenderMode["default"].push(n, _RenderMode["default"].MODES.DEPTH);
      });
      buffer = g.renderViewToBuffer({
        camera: this.camera,
        scene: this.tileLayer.object3d
      }, {
        x: x,
        y: y,
        width: width,
        height: height,
        buffer: buffer
      });
      restore.forEach(function (r) {
        return r();
      });

      if (this.tileLayer.wireframe !== currentWireframe) {
        this.tileLayer.wireframe = currentWireframe;
      }

      if (this.tileLayer.opacity !== currentOpacity) {
        this.tileLayer.opacity = currentOpacity;
      }

      if (this.tileLayer.visible !== currentVisibility) {
        this.tileLayer.visible = currentVisibility;
      }

      return buffer;
    }
    /**
     * Returns the world position (view's crs: referenceCrs) under view coordinates.
     * This position is computed with depth buffer.
     *
     * @param      {THREE.Vector2}  mouse  position in view coordinates (in pixel), if it's null so it's view's center.
     * @param      {THREE.Vector3}  [target=THREE.Vector3()] target. the result will be copied into this Vector3. If not present a new one will be created.
     * @return     {THREE.Vector3}  the world position in view's crs: referenceCrs.
     */

  }, {
    key: "getPickingPositionFromDepth",
    value: function getPickingPositionFromDepth(mouse) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Vector3();

      if (!this.tileLayer || this.tileLayer.level0Nodes.length == 0 || !this.tileLayer.level0Nodes[0]) {
        target = undefined;
        return;
      }

      var l = this.mainLoop;

      var viewPaused = l.scheduler.commandsWaitingExecutionCount() == 0 && l.renderingState == _MainLoop.RENDERING_PAUSED;

      var g = l.gfxEngine;
      var dim = g.getWindowSize();
      var camera = this.camera.camera3D;
      mouse = mouse || dim.clone().multiplyScalar(0.5);
      mouse.x = Math.floor(mouse.x);
      mouse.y = Math.floor(mouse.y); // Prepare state

      var prev = camera.layers.mask;
      camera.layers.mask = 1 << this.tileLayer.threejsLayer; // Render/Read to buffer

      var buffer;

      if (viewPaused) {
        if ((0, _classPrivateFieldGet2["default"])(this, _fullSizeDepthBuffer).needsUpdate) {
          this.readDepthBuffer(0, 0, dim.x, dim.y, (0, _classPrivateFieldGet2["default"])(this, _fullSizeDepthBuffer));
          (0, _classPrivateFieldGet2["default"])(this, _fullSizeDepthBuffer).needsUpdate = false;
        }

        var id = ((dim.y - mouse.y - 1) * dim.x + mouse.x) * 4;
        buffer = (0, _classPrivateFieldGet2["default"])(this, _fullSizeDepthBuffer).slice(id, id + 4);
      } else {
        buffer = this.readDepthBuffer(mouse.x, mouse.y, 1, 1, (0, _classPrivateFieldGet2["default"])(this, _pixelDepthBuffer));
      }

      screen.x = mouse.x / dim.x * 2 - 1;
      screen.y = -(mouse.y / dim.y) * 2 + 1;

      if (_Capabilities["default"].isLogDepthBufferSupported() && camera.type == 'PerspectiveCamera') {
        // TODO: solve this part with gl_FragCoord_Z and unproject
        // Origin
        ray.origin.copy(camera.position); // Direction

        ray.direction.set(screen.x, screen.y, 0.5); // Unproject

        matrix.multiplyMatrices(camera.matrixWorld, matrix.copy(camera.projectionMatrix).invert());
        ray.direction.applyMatrix4(matrix);
        ray.direction.sub(ray.origin);
        direction.set(0, 0, 1.0);
        direction.applyMatrix4(matrix);
        direction.sub(ray.origin);
        var angle = direction.angleTo(ray.direction);
        var orthoZ = g.depthBufferRGBAValueToOrthoZ(buffer, camera);
        var length = orthoZ / Math.cos(angle);
        target.addVectors(camera.position, ray.direction.setLength(length));
      } else {
        var gl_FragCoord_Z = g.depthBufferRGBAValueToOrthoZ(buffer, camera);
        target.set(screen.x, screen.y, gl_FragCoord_Z);
        target.unproject(camera);
      }

      camera.layers.mask = prev;

      if (target.length() > 10000000) {
        return undefined;
      }

      return target;
    }
    /**
     * Returns the world {@link Coordinates} at given view coordinates.
     *
     * @param   {THREE.Vector2|event}   [mouse]     The view coordinates at which the world coordinates must be
                                                    * returned. This parameter can also be set to a mouse event from
                                                    * which the view coordinates will be deducted. If not specified, it
                                                    * will be defaulted to the view's center coordinates.
     * @param   {Coordinates}           [target]    The result will be copied into this {@link Coordinates}. If not
                                                    * specified, a new {@link Coordinates} instance will be created.
     *
     * @returns {Coordinates}   The world {@link Coordinates} at the given view coordinates.
     */

  }, {
    key: "pickCoordinates",
    value: function pickCoordinates(mouse) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new _Coordinates["default"](this.tileLayer.extent.crs);

      if (mouse instanceof Event) {
        this.eventToViewCoords(mouse);
      } else if (mouse && mouse.x !== undefined && mouse.y !== undefined) {
        _eventCoords.copy(mouse);
      } else {
        _eventCoords.set(this.mainLoop.gfxEngine.width / 2, this.mainLoop.gfxEngine.height / 2);
      }

      this.getPickingPositionFromDepth(_eventCoords, positionVector);
      coordinates.crs = this.referenceCrs;
      coordinates.setFromVector3(positionVector);
      coordinates.as(target.crs, target);
      return target;
    }
    /**
     * Resize the viewer.
     *
     * @param {number} [width=viewerDiv.clientWidth] - The width to resize the
     * viewer with. By default it is the `clientWidth` of the `viewerDiv`.
     * @param {number} [height=viewerDiv.clientHeight] - The height to resize
     * the viewer with. By default it is the `clientHeight` of the `viewerDiv`.
     */

  }, {
    key: "resize",
    value: function resize(width, height) {
      if (width == undefined) {
        width = this.domElement.clientWidth;
      }

      if (height == undefined) {
        height = this.domElement.clientHeight;
      }

      (0, _classPrivateFieldSet2["default"])(this, _fullSizeDepthBuffer, new Uint8Array(4 * width * height));
      this.mainLoop.gfxEngine.onWindowResize(width, height);
      this.camera.resize(width, height);
      this.notifyChange(this.camera.camera3D);
    }
  }]);
  return View;
}(THREE.EventDispatcher);

var _default = View;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/C3DTilesLayer.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/C3DTilesLayer.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _GeometryLayer2 = _interopRequireDefault(__webpack_require__(/*! ./GeometryLayer */ "./node_modules/itowns/lib/Layer/GeometryLayer.js"));

var _dTilesProcessing = __webpack_require__(/*! ../Process/3dTilesProcessing */ "./node_modules/itowns/lib/Process/3dTilesProcessing.js");

var _C3DTileset = _interopRequireDefault(__webpack_require__(/*! ../Core/3DTiles/C3DTileset */ "./node_modules/itowns/lib/Core/3DTiles/C3DTileset.js"));

var _C3DTExtensions = _interopRequireDefault(__webpack_require__(/*! ../Core/3DTiles/C3DTExtensions */ "./node_modules/itowns/lib/Core/3DTiles/C3DTExtensions.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var _update = (0, _dTilesProcessing.process3dTilesNode)();

var C3DTilesLayer = /*#__PURE__*/function (_GeometryLayer) {
  (0, _inherits2["default"])(C3DTilesLayer, _GeometryLayer);

  var _super = _createSuper(C3DTilesLayer);

  /**
   * Constructs a new instance of 3d tiles layer.
   * @constructor
   * @extends GeometryLayer
   *
   * @example
   * // Create a new Layer 3d-tiles For DiscreteLOD
   * const l3dt = new C3DTilesLayer('3dtiles', {
   *      name: '3dtl',
   *      source: new C3DTilesSource({
   *           url: 'https://tileset.json'
   *      })
   * }, view);
   * View.prototype.addLayer.call(view, l3dt);
   *
   * @param      {string}  id - The id of the layer, that should be unique.
   *     It is not mandatory, but an error will be emitted if this layer is
   *     added a
   * {@link View} that already has a layer going by that id.
   * @param      {object}  config   configuration, all elements in it
   * will be merged as is in the layer.
   * @param {C3TilesSource} config.source The source of 3d Tiles.
   *
   * name.
   * @param  {View}  view  The view
   */
  function C3DTilesLayer(id, config, view) {
    var _this;

    (0, _classCallCheck2["default"])(this, C3DTilesLayer);
    _this = _super.call(this, id, new THREE.Group(), {
      source: config.source
    });
    _this.isC3DTilesLayer = true;
    _this.sseThreshold = config.sseThreshold || 16;
    _this.cleanupDelay = config.cleanupDelay || 1000;

    _this.onTileContentLoaded = config.onTileContentLoaded || function () {};

    _this.protocol = '3d-tiles'; // custom cesium shaders are not functional;

    _this.overrideMaterials = config.overrideMaterials !== undefined ? config.overrideMaterials : true;
    _this.name = config.name;
    _this.registeredExtensions = config.registeredExtensions || new _C3DTExtensions["default"]();
    _this._cleanableTiles = [];

    var resolve = _this.addInitializationStep();

    _this.source.whenReady.then(function (tileset) {
      _this.tileset = new _C3DTileset["default"](tileset, _this.source.baseUrl, _this.registeredExtensions); // Verify that extensions of the tileset have been registered in the layer

      if (_this.tileset.extensionsUsed) {
        var _iterator = _createForOfIteratorHelper(_this.tileset.extensionsUsed),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var extensionUsed = _step.value;

            // if current extension is not registered
            if (!_this.registeredExtensions.isExtensionRegistered(extensionUsed)) {
              // if it is required to load the tileset
              if (_this.tileset.extensionsRequired && _this.tileset.extensionsRequired.includes(extensionUsed)) {
                console.error("3D Tiles tileset required extension \"".concat(extensionUsed, "\" must be registered to the 3D Tiles layer of iTowns to be parsed and used."));
              } else {
                console.warn("3D Tiles tileset used extension \"".concat(extensionUsed, "\" must be registered to the 3D Tiles layer of iTowns to be parsed and used."));
              }
            }
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      } // TODO: Move all init3dTilesLayer code to constructor


      (0, _dTilesProcessing.init3dTilesLayer)(view, view.mainLoop.scheduler, (0, _assertThisInitialized2["default"])(_this), tileset.root).then(resolve);
    });

    return _this;
  }

  (0, _createClass2["default"])(C3DTilesLayer, [{
    key: "preUpdate",
    value: function preUpdate() {
      return _dTilesProcessing.pre3dTilesUpdate.bind(this)();
    }
  }, {
    key: "update",
    value: function update(context, layer, node) {
      return _update(context, layer, node);
    }
  }, {
    key: "getObjectToUpdateForAttachedLayers",
    value: function getObjectToUpdateForAttachedLayers(meta) {
      if (meta.content) {
        var result = [];
        meta.content.traverse(function (obj) {
          if (obj.isObject3D && obj.material && obj.layer == meta.layer) {
            result.push(obj);
          }
        });
        var p = meta.parent;

        if (p && p.content) {
          return {
            elements: result,
            parent: p.content
          };
        } else {
          return {
            elements: result
          };
        }
      }
    }
    /**
     * Finds the batch table of an object in a 3D Tiles layer. This is
     * for instance needed when picking because we pick the geometric
     * object which is not at the same level in the layer structure as
     * the batch table. More details here on itowns internal
     * organization of 3DTiles:
     *  https://github.com/MEPP-team/RICT/blob/master/Doc/iTowns/Doc.md#itowns-internal-organisation-of-3d-tiles-data
     * @param {THREE.Object3D} object - a 3D geometric object
     * @returns {C3DTBatchTable} - the batch table of the object
     */

  }, {
    key: "findBatchTable",
    value: function findBatchTable(object) {
      if (object.batchTable) {
        return object.batchTable;
      }

      if (object.parent) {
        return this.findBatchTable(object.parent);
      }
    }
    /**
     * Gets semantic information from batch table and batch table extensions
     * of an intersected feature.
     * @param {Array} intersects - @return An array containing all
     * targets picked under specified coordinates. Intersects can be
     * computed with view.pickObjectsAt(..). See fillHTMLWithPickingInfo()
     * in 3dTilesHelper.js for an example.
     * @returns {Object} - an object containing the batch id, the
     * information from the batch table and from the extension of the batch
     * table for an intersected feature.
     */

  }, {
    key: "getInfoFromIntersectObject",
    value: function getInfoFromIntersectObject(intersects) {
      var resultInfo = {};
      var batchID = -1;
      var batchTable = {}; // First, we get the ID and the batch table of the intersected object.
      // (the semantic information about a feature is located in its batch
      // table (see 3D Tiles specification).

      for (var i = 0; i < intersects.length; i++) {
        // interAttributes are glTF attributes of b3dm tiles (i.e.
        // position, normal, batch id)
        var interAttributes = intersects[i].object.geometry.attributes;

        if (interAttributes && interAttributes._BATCHID) {
          // face is a Face3 object of THREE which is a
          // triangular face. face.a is its first vertex
          var vertex = intersects[i].face.a; // get batch id of the face

          batchID = interAttributes._BATCHID.array[vertex];
          batchTable = this.findBatchTable(intersects[i].object);
          break;
        }
      }

      if (batchID === -1) {
        return;
      }

      resultInfo.batchID = batchID; // get information from batch table (including from its extension)

      Object.assign(resultInfo, batchTable.getInfoById(batchID));
      return resultInfo;
    }
  }]);
  return C3DTilesLayer;
}(_GeometryLayer2["default"]);

var _default = C3DTilesLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/ColorLayer.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/ColorLayer.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _RasterLayer2 = _interopRequireDefault(__webpack_require__(/*! ./RasterLayer */ "./node_modules/itowns/lib/Layer/RasterLayer.js"));

var _LayeredMaterialNodeProcessing = __webpack_require__(/*! ../Process/LayeredMaterialNodeProcessing */ "./node_modules/itowns/lib/Process/LayeredMaterialNodeProcessing.js");

var _RasterTile = __webpack_require__(/*! ../Renderer/RasterTile */ "./node_modules/itowns/lib/Renderer/RasterTile.js");

var _Style = _interopRequireDefault(__webpack_require__(/*! ../Core/Style */ "./node_modules/itowns/lib/Core/Style.js"));

var _Undeprecator = __webpack_require__(/*! ../Core/Deprecated/Undeprecator */ "./node_modules/itowns/lib/Core/Deprecated/Undeprecator.js");

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * Fires when the visiblity of the layer has changed.
 * @event ColorLayer#visible-property-changed
 */

/**
 * Fires when the opacity of the layer has changed.
 * @event ColorLayer#opacity-property-changed
 */

/**
 * Fires when the sequence of the layer has changed, meaning that the order of
 * the layer changed in the view it is attached to.
 * @event ColorLayer#sequence-property-changed
 */

/**
 * @property {boolean} isColorLayer - Used to checkout whether this layer is a
 * ColorLayer. Default is true. You should not change this, as it is used
 * internally for optimisation.
 * @property {Style} style - default style apply layer features.
 * @property {boolean} visible - property to display or to hide layer.
 * @property {number} opacity - property to adjust transparency, opacity is between 0. and 1.
 * @property {boolean} transparent - specify if the layer could be transparent.
 * @property {boolean} noTextureParentOutsideLimit - don't parent texture if it's outside limit.
 * @property {number} effect_type - type effect to apply on raster color.
 * if `effect_type` equals:
 * * `0`: no special effect.
 * * `1`: light color to invisible effect.
 * * `2`: white color to invisible effect.
 * * `3`: custom shader effect (defined `ShaderChunk.customBodyColorLayer` and `ShaderChunk.customHeaderColorLayer`).
 * @property {number} effect_parameter - amount value used with effect applied on raster color.
 */
var ColorLayer = /*#__PURE__*/function (_RasterLayer) {
  (0, _inherits2["default"])(ColorLayer, _RasterLayer);

  var _super = _createSuper(ColorLayer);

  /**
   * A simple layer, usually managing a texture to display on a view. For example,
   * it can be an aerial view of the ground or a simple transparent layer with the
   * roads displayed.
   *
   * @constructor
   * @extends Layer
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {Object} [config] - Optional configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name.
   * @param {Source} [config.source] - Description and options of the source.
   * @param {number} [config.magFilter] - How the texture is sampled when a texel covers more than one pixel. [see](https://threejs.org/docs/?q=texture#api/en/textures/Texture.magFilter)
   * @param {number} [config.minFilter] - How the texture is sampled when a texel covers less than one pixel. [see](https://threejs.org/docs/?q=texture#api/en/textures/Texture.minFilter)
   * @param {number} [effect_type=0] - type effect to apply on raster color.
   * if `effect_type` equals:
   * * `0`: no special effect.
   * * `1`: light color to invisible effect.
   * * `2`: white color to invisible effect.
   * * `3`: custom shader effect (defined `ShaderChunk.customBodyColorLayer` and `ShaderChunk.customHeaderColorLayer`).
   * @param {number} [effect_parameter=1.0] - amount value used with effect applied on raster color.
   *
   * @example
   * // Create a ColorLayer
   * const color = new ColorLayer('roads', {
   *     source: new  SourceWMTS({
   *          protocol: 'wmts',
   *          url: 'http://server.geo/wmts/....',
   *          format: 'image/png',
   *          name: 'nameService',
   *          tileMatrixSet: 'PM',
   *     }),
   *     transparent: true,
   *     opacity: 0.5,
   * });
   *
   * // Add the layer
   * view.addLayer(color);
   */
  function ColorLayer(id) {
    var _this;

    var config = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, ColorLayer);
    (0, _Undeprecator.deprecatedColorLayerOptions)(config);
    _this = _super.call(this, id, config);
    _this.isColorLayer = true;
    _this.style = new _Style["default"](config.style);

    _this.defineLayerProperty('visible', true);

    _this.defineLayerProperty('opacity', 1.0);

    _this.defineLayerProperty('sequence', 0);

    _this.transparent = config.transparent || _this.opacity < 1.0;
    _this.noTextureParentOutsideLimit = config.source ? config.source.isFileSource : false; // Feature options

    _this.buildExtent = true;
    _this.structure = '2d';
    return _this;
  }
  /**
   * Setup RasterColorTile added to TileMesh. This RasterColorTile handles
   * the ColorLayer textures mapped on this TileMesh.
   *
   * @param      {TileMesh}  node    The node to apply new RasterColorTile;
   * @return     {RasterColorTile}  The raster color node added.
   */


  (0, _createClass2["default"])(ColorLayer, [{
    key: "setupRasterNode",
    value: function setupRasterNode(node) {
      var rasterColorNode = new _RasterTile.RasterColorTile(node.material, this);
      node.material.addLayer(rasterColorNode); // set up ColorLayer ordering.

      node.material.setSequence(this.parent.colorLayersOrder);
      return rasterColorNode;
    }
  }, {
    key: "update",
    value: function update(context, layer, node, parent) {
      return (0, _LayeredMaterialNodeProcessing.updateLayeredMaterialNodeImagery)(context, this, node, parent);
    }
  }]);
  return ColorLayer;
}(_RasterLayer2["default"]);

var _default = ColorLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/ElevationLayer.js":
/*!*********************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/ElevationLayer.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _RasterLayer2 = _interopRequireDefault(__webpack_require__(/*! ./RasterLayer */ "./node_modules/itowns/lib/Layer/RasterLayer.js"));

var _LayeredMaterialNodeProcessing = __webpack_require__(/*! ../Process/LayeredMaterialNodeProcessing */ "./node_modules/itowns/lib/Process/LayeredMaterialNodeProcessing.js");

var _RasterTile = __webpack_require__(/*! ../Renderer/RasterTile */ "./node_modules/itowns/lib/Renderer/RasterTile.js");

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @property {boolean} isElevationLayer - Used to checkout whether this layer is
 * an ElevationLayer. Default is true. You should not change this, as it is used
 * internally for optimisation.
 * @property {number} noDataValue - Used to specify a **null** or **no data value** in the elevation terrain.
 * @property {number} scale - Used to apply a scale on the elevation value. It
 * can be used for exageration of the elevation, like in [this
 * example](https://www.itowns-project.org/itowns/examples/#plugins_pyramidal_tiff).
 * @property {boolean} useColorTextureElevation - the elevation is computed with one color texture channel,
 * `this.colorTextureElevationMaxZ` and `this.colorTextureElevationMinZ`.
 *
 * The formula is:
 *
 * ```js
 * elevation = color.r * (this.colorTextureElevationMaxZ - this.colorTextureElevationMinZ) + this.colorTextureElevationMinZ
 * ```
 * @property {number} colorTextureElevationMinZ - elevation minimum in `useColorTextureElevation` mode.
 * @property {number} colorTextureElevationMaxZ - elevation maximum in `useColorTextureElevation` mode.
 */
var ElevationLayer = /*#__PURE__*/function (_RasterLayer) {
  (0, _inherits2["default"])(ElevationLayer, _RasterLayer);

  var _super = _createSuper(ElevationLayer);

  /**
   * A simple layer, managing an elevation texture to add some reliefs on the
   * plane or globe view for example.
   *
   * @constructor
   * @extends Layer
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {Object} [config] - Optional configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name.
   *
   * @example
   * // Create an ElevationLayer
   * const elevation = new ElevationLayer('IGN_MNT', {
   *      source: new WMTSSource({
   *          "url": "https://wxs.ign.fr/altimetrie/geoportail/wmts",
   *           "crs": "EPSG:4326",
   *           "format": "image/x-bil;bits=32",
   *           "name": "ELEVATION.ELEVATIONGRIDCOVERAGE",
   *      }),
   * });
   *
   * // Add the layer
   * view.addLayer(elevation);
   */
  function ElevationLayer(id) {
    var _this;

    var config = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, ElevationLayer);
    _this = _super.call(this, id, config);
    _this.isElevationLayer = true;

    _this.defineLayerProperty('scale', _this.scale || 1.0);

    return _this;
  }
  /**
   * Setup RasterElevationTile added to TileMesh. This RasterElevationTile handles
   * the elevation texture to displace TileMesh vertices.
   *
   * @param      {TileMesh}  node    The node to apply new RasterElevationTile;
   * @return     {RasterElevationTile}  The raster elevation node added.
   */


  (0, _createClass2["default"])(ElevationLayer, [{
    key: "setupRasterNode",
    value: function setupRasterNode(node) {
      var _this2 = this;

      var rasterElevationNode = new _RasterTile.RasterElevationTile(node.material, this);
      node.material.addLayer(rasterElevationNode);
      node.material.setSequenceElevation(this.id); // bounding box initialisation

      var updateBBox = function () {
        return node.setBBoxZ({
          min: rasterElevationNode.min,
          max: rasterElevationNode.max,
          scale: _this2.scale
        });
      };

      updateBBox(); // listen elevation updating

      rasterElevationNode.addEventListener('updatedElevation', updateBBox); // listen scaling elevation updating

      this.addEventListener('scale-property-changed', updateBBox); // remove scaling elevation updating if node is removed

      node.addEventListener('dispose', function () {
        _this2.removeEventListener('scale-property-changed', updateBBox);
      });
      return rasterElevationNode;
    }
  }, {
    key: "update",
    value: function update(context, layer, node, parent) {
      return (0, _LayeredMaterialNodeProcessing.updateLayeredMaterialNodeElevation)(context, this, node, parent);
    }
  }]);
  return ElevationLayer;
}(_RasterLayer2["default"]);

var _default = ElevationLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/EntwinePointTileLayer.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/EntwinePointTileLayer.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _EntwinePointTileNode = _interopRequireDefault(__webpack_require__(/*! ../Core/EntwinePointTileNode */ "./node_modules/itowns/lib/Core/EntwinePointTileNode.js"));

var _PointCloudLayer2 = _interopRequireDefault(__webpack_require__(/*! ./PointCloudLayer */ "./node_modules/itowns/lib/Layer/PointCloudLayer.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var bboxMesh = new THREE.Mesh();
var box3 = new THREE.Box3();
bboxMesh.geometry.boundingBox = box3;
/**
 * @property {boolean} isEntwinePointTileLayer - Used to checkout whether this
 * layer is a EntwinePointTileLayer. Default is `true`. You should not change
 * this, as it is used internally for optimisation.
 */

var EntwinePointTileLayer = /*#__PURE__*/function (_PointCloudLayer) {
  (0, _inherits2["default"])(EntwinePointTileLayer, _PointCloudLayer);

  var _super = _createSuper(EntwinePointTileLayer);

  /**
   * Constructs a new instance of Entwine Point Tile layer.
   *
   * @constructor
   * @extends PointCloudLayer
   *
   * @example
   * // Create a new point cloud layer
   * const points = new EntwinePointTileLayer('EPT',
   *  {
   *      source: new EntwinePointTileSource({
   *          url: 'https://server.geo/ept-dataset',
   *      }
   *  });
   *
   * View.prototype.addLayer.call(view, points);
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {Object} config - Configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name. See the list of properties to know which one can be specified.
   * @param {string} [config.crs=ESPG:4326] - The CRS of the {@link View} this
   * layer will be attached to. This is used to determine the extent of this
   * layer. Default to `EPSG:4326`.
   * @param {number} [config.skip=1] - Read one point from every `skip` points
   * - see {@link LASParser}.
   */
  function EntwinePointTileLayer(id, config) {
    var _this;

    (0, _classCallCheck2["default"])(this, EntwinePointTileLayer);
    _this = _super.call(this, id, config);
    _this.isEntwinePointTileLayer = true;

    var resolve = _this.addInitializationStep();

    _this.whenReady = _this.source.whenReady.then(function () {
      _this.root = new _EntwinePointTileNode["default"](0, 0, 0, 0, (0, _assertThisInitialized2["default"])(_this), -1);

      _this.root.bbox.min.fromArray(_this.source.boundsConforming, 0);

      _this.root.bbox.max.fromArray(_this.source.boundsConforming, 3);

      _this.extent = _Extent["default"].fromBox3(config.crs || 'EPSG:4326', _this.root.bbox);
      return _this.root.loadOctree().then(resolve);
    });
    return _this;
  }

  (0, _createClass2["default"])(EntwinePointTileLayer, [{
    key: "spacing",
    get: function get() {
      return this.source.spacing;
    }
  }]);
  return EntwinePointTileLayer;
}(_PointCloudLayer2["default"]);

var _default = EntwinePointTileLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/FeatureGeometryLayer.js":
/*!***************************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/FeatureGeometryLayer.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _three = __webpack_require__(/*! three */ "./node_modules/three/build/three.cjs");

var _GeometryLayer2 = _interopRequireDefault(__webpack_require__(/*! ./GeometryLayer */ "./node_modules/itowns/lib/Layer/GeometryLayer.js"));

var _FeatureProcessing = _interopRequireDefault(__webpack_require__(/*! ../Process/FeatureProcessing */ "./node_modules/itowns/lib/Process/FeatureProcessing.js"));

var _Feature2Mesh = _interopRequireDefault(__webpack_require__(/*! ../Converter/Feature2Mesh */ "./node_modules/itowns/lib/Converter/Feature2Mesh.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * `FeatureGeometryLayer` displays geographic vector data (geojson, kml...) in object 3D.
 * `FeatureGeometryLayer` is a pre-configured `GeometryLayer` to load and convert vector data.
 * In deed, `GeometryLayer` allows customizing data loading (`update` method)
 * and their conversion (`convert` method),
 *
 * @property {boolean} isFeatureGeometryLayer - Used to checkout whether this layer is
 * a FeatureGeometryLayer. Default is true. You should not change this, as it is used
 * internally for optimisation.
 */
var FeatureGeometryLayer = /*#__PURE__*/function (_GeometryLayer) {
  (0, _inherits2["default"])(FeatureGeometryLayer, _GeometryLayer);

  var _super = _createSuper(FeatureGeometryLayer);

  /**
   * @constructor
   * @extends GeometryLayer
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {Object} [options] - Optional configuration, all elements in it
   * will be merged as is in the layer.
   * @param {function} [options.batchId] - optional function to create batchId attribute.
   * It is passed the feature property and the feature index.
   * As the batchId is using an unsigned int structure on 32 bits, the batchId could be between 0 and 4,294,967,295.
   * @param {THREE.Object3D} [options.object3d=new THREE.Group()] root object3d layer.
   * @param {function} [options.onMeshCreated] this callback is called when the mesh is created. The callback parameters are the
   * `mesh` and the `context`.
   * @param {boolean} [options.accurate=TRUE] If `accurate` is `true`, data are re-projected with maximum geographical accuracy.
   * With `true`, `proj4` is used to transform data source.
   *
   * If `accurate` is `false`, re-projecting is faster but less accurate.
   * With `false`, an affine transformation is used to transform data source.
   * This method is an approximation. The error increases with the extent
   * dimension of the object or queries.
   *
   * For example :
   * * for a **100** meter dimension, there's a difference of **0.001** meter with the accurate method
   * * for a **500** meter dimension, there's a difference of **0.05** meter with the accurate method
   * * for a **20000** meter dimension, there's a difference of **40** meter with the accurate method
   *
   * **WARNING** If the source is `VectorTilesSource` then `accurate` is always false.
   */
  function FeatureGeometryLayer(id) {
    var _options$accurate;

    var _this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, FeatureGeometryLayer);
    options.update = _FeatureProcessing["default"].update;
    options.convert = _Feature2Mesh["default"].convert({
      batchId: options.batchId
    });
    _this = _super.call(this, id, options.object3d || new _three.Group(), options);
    _this.isFeatureGeometryLayer = true;
    _this.accurate = (_options$accurate = options.accurate) !== null && _options$accurate !== void 0 ? _options$accurate : true;
    _this.buildExtent = !_this.accurate;
    return _this;
  }

  (0, _createClass2["default"])(FeatureGeometryLayer, [{
    key: "preUpdate",
    value: function preUpdate(context, sources) {
      if (sources.has(this.parent)) {
        this.object3d.clear();
      }
    }
  }]);
  return FeatureGeometryLayer;
}(_GeometryLayer2["default"]);

var _default = FeatureGeometryLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/GeoidLayer.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/GeoidLayer.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;
exports.geoidLayerIsVisible = geoidLayerIsVisible;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Layer2 = _interopRequireDefault(__webpack_require__(/*! ./Layer */ "./node_modules/itowns/lib/Layer/Layer.js"));

var _LayerUpdateState = _interopRequireDefault(__webpack_require__(/*! ./LayerUpdateState */ "./node_modules/itowns/lib/Layer/LayerUpdateState.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function geoidLayerIsVisible(tilelayer) {
  var _tilelayer$attachedLa;

  return tilelayer === null || tilelayer === void 0 ? void 0 : (_tilelayer$attachedLa = tilelayer.attachedLayers.filter(function (l) {
    return l.isGeoidLayer;
  })[0]) === null || _tilelayer$attachedLa === void 0 ? void 0 : _tilelayer$attachedLa.visible;
}
/**
 * `GeoidLayer` is a specific `{@link Layer}` which supports geoid height data. When added to a `{@link View}`, it
 * vertically translates each of the view's tiles by a proper geoid height value. For a given tile, the geoid height
 * value used for translation is the geoid height computed at the center of the tile.
 *
 * @example
 * // Create a GeoidLayer from a GTX geoid heights file.
 * const geoidLayer = new GeoidLayer('geoid', {
 *     source: new FileSource({
 *         url: 'url-to-some-GTX-geoid-heights-file.gtx',
 *         crs: 'EPSG:4326',
 *         format: 'application/gtx',
 *     }),
 * });
 */


var GeoidLayer = /*#__PURE__*/function (_Layer) {
  (0, _inherits2["default"])(GeoidLayer, _Layer);

  var _super = _createSuper(GeoidLayer);

  /**
   * Creates a new instance of `GeoidLayer`.
   *
   * @param   {string}    id              An unique identifier for the layer.
   * @param   {Object}    config          The layer configuration. All elements in it will be merged as is in the
                                          * layer. For example, if the configuration contains three elements `name,
                                          * protocol, extent`, these elements will be available using `layer.name` or
                                          * something else depending on the property name. Only `config.source`
                                          * parameter is mandatory.
   * @param   {Object}    config.source   The source of the geoid data displayed by the `GeoidLayer`. It is mandatory
                                          * that the source data for a `GeoidLayer` be parsed into a
                                          * `{@link GeoidGrid}`. You can refer to `{@link GTXParser}`,
                                          * `{@link GDFParser}` and `{@link ISGParser}` to see how three standard
                                          * geoid height grid file formats are parsed into `{@link GeoidGrid}`.
   */
  function GeoidLayer(id) {
    var _this;

    var config = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, GeoidLayer);
    _this = _super.call(this, id, config);
    _this.isGeoidLayer = true;

    _this.defineLayerProperty('visible', true);

    return _this;
  }

  (0, _createClass2["default"])(GeoidLayer, [{
    key: "updateNodeZ",
    value: function updateNodeZ(node) {
      node.material.geoidHeight = this.visible ? node.geoidHeight : 0;
      node.obb.updateZ({
        geoidHeight: node.material.geoidHeight
      });
    }
  }, {
    key: "update",
    value: function update(context, layer, node, parent) {
      var _this2 = this;

      if (!parent || !node.material) {
        return;
      } // Don't update tile if its zoom is not within the layer's zoom limits


      var extentsDestination = node.getExtentsByProjection(layer.crs);
      var zoom = extentsDestination[0].zoom;

      if (zoom > layer.zoom.max || zoom < layer.zoom.min) {
        return;
      }

      if (node.layerUpdateState[layer.id] === undefined) {
        node.layerUpdateState[layer.id] = new _LayerUpdateState["default"]();

        var updateNodeZ = function () {
          return _this2.updateNodeZ(node);
        };

        layer.addEventListener('visible-property-changed', updateNodeZ);
        node.addEventListener('dispose', function () {
          layer.removeEventListener('visible-property-changed', updateNodeZ);
        });
      }

      if (layer.frozen || !layer.visible || !node.material.visible || !node.layerUpdateState[layer.id].canTryUpdate()) {
        return;
      }

      node.layerUpdateState[layer.id].newTry();
      return this.getData(node.extent, extentsDestination).then(function (result) {
        node.geoidHeight = result.getHeightAtCoordinates(node.extent.center());

        _this2.updateNodeZ(node);

        node.layerUpdateState[layer.id].noMoreUpdatePossible();
      });
    }
  }]);
  return GeoidLayer;
}(_Layer2["default"]);

var _default = GeoidLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/GeometryLayer.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/GeometryLayer.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Layer2 = _interopRequireDefault(__webpack_require__(/*! ./Layer */ "./node_modules/itowns/lib/Layer/Layer.js"));

var _Picking = _interopRequireDefault(__webpack_require__(/*! ../Core/Picking */ "./node_modules/itowns/lib/Core/Picking.js"));

var _Cache = __webpack_require__(/*! ../Core/Scheduler/Cache */ "./node_modules/itowns/lib/Core/Scheduler/Cache.js");

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function disposeMesh(obj) {
  if (obj.dispose) {
    obj.dispose();
  } else {
    if (obj.geometry) {
      obj.geometry.dispose();
    }

    if (obj.material) {
      if (Array.isArray(obj.material)) {
        var _iterator = _createForOfIteratorHelper(obj.material),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var material = _step.value;
            material.dispose();
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      } else {
        obj.material.dispose();
      }
    }
  }
}

function traverse(obj, callback) {
  var _iterator2 = _createForOfIteratorHelper(obj.children),
      _step2;

  try {
    for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
      var child = _step2.value;
      traverse(child, callback);
    }
  } catch (err) {
    _iterator2.e(err);
  } finally {
    _iterator2.f();
  }

  callback(obj);
}
/**
 * Fires when the opacity of the layer has changed.
 * @event GeometryLayer#opacity-property-changed
 */

/**
 * @property {boolean} isGeometryLayer - Used to checkout whether this layer is
 * a GeometryLayer. Default is true. You should not change this, as it is used
 * internally for optimisation.
 * @property {number} [zoom.max=Infinity] - this is the maximum zoom beyond which it'll be hidden.
 * The `max` is constant and the value is `Infinity` because there's no maximum display level after which it is hidden.
 * This property is used only if the layer is attached to [TiledGeometryLayer]{@link TiledGeometryLayer}.
 * @property {number} [zoom.min=0] - this is the minimum zoom from which it'll be visible.
 * This property is used only if the layer is attached to [TiledGeometryLayer]{@link TiledGeometryLayer}.
 */


var GeometryLayer = /*#__PURE__*/function (_Layer) {
  (0, _inherits2["default"])(GeometryLayer, _Layer);

  var _super = _createSuper(GeometryLayer);

  /**
   * A layer usually managing a geometry to display on a view. For example, it
   * can be a layer of buildings extruded from a a WFS stream.
   *
   * @constructor
   * @extends Layer
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {THREE.Object3D} object3d - The object3D used to contain the
   * geometry of the GeometryLayer. It is usually a `THREE.Group`, but it can
   * be anything inheriting from a `THREE.Object3D`.
   * @param {Object} [config] - Optional configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name.
   * @param {Source} [config.source] - Description and options of the source.
   *
   * @throws {Error} `object3d` must be a valid `THREE.Object3d`.
   *
   * @example
   * // Create a GeometryLayer
   * const geometry = new GeometryLayer('buildings', new THREE.Object3D(), {
   *      source: {
   *          url: 'http://server.geo/wfs?',
   *          protocol: 'wfs',
   *          format: 'application/json'
   *      },
   * });
   *
   * // Add the layer
   * view.addLayer(geometry);
   */
  function GeometryLayer(id, object3d) {
    var _config$cacheLifeTime;

    var _this;

    var config = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    (0, _classCallCheck2["default"])(this, GeometryLayer);
    config.cacheLifeTime = (_config$cacheLifeTime = config.cacheLifeTime) !== null && _config$cacheLifeTime !== void 0 ? _config$cacheLifeTime : _Cache.CACHE_POLICIES.GEOMETRY;
    _this = _super.call(this, id, config);
    _this.isGeometryLayer = true;

    if (!object3d || !object3d.isObject3D) {
      throw new Error("Missing/Invalid object3d parameter (must be a\n                three.js Object3D instance)");
    }

    if (object3d.type === 'Group' && object3d.name === '') {
      object3d.name = id;
    }

    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'object3d', {
      value: object3d,
      writable: false,
      configurable: true
    });
    _this.opacity = 1.0;
    _this.wireframe = false;
    _this.attachedLayers = [];
    _this.visible = config.visible == undefined ? true : config.visible;
    Object.defineProperty(_this.zoom, 'max', {
      value: Infinity,
      writable: false
    }); // Feature options

    _this.filteringExtent = !_this.source.isFileSource;
    _this.structure = '3d';
    return _this;
  } // Attached layers expect to receive the visual representation of a
  // layer (= THREE object with a material).  So if a layer's update
  // function don't process this kind of object, the layer must provide a
  // getObjectToUpdateForAttachedLayers function that returns the correct
  // object to update for attached layer.
  // See 3dtilesLayer or PotreeLayer for examples.
  // eslint-disable-next-line arrow-body-style


  (0, _createClass2["default"])(GeometryLayer, [{
    key: "getObjectToUpdateForAttachedLayers",
    value: function getObjectToUpdateForAttachedLayers(obj) {
      if (obj.parent && obj.material) {
        return {
          element: obj,
          parent: obj.parent
        };
      }
    } // Placeholder
    // eslint-disable-next-line

  }, {
    key: "postUpdate",
    value: function postUpdate() {} // Placeholder
    // eslint-disable-next-line

  }, {
    key: "culling",
    value: function culling() {
      return true;
    }
    /**
     * Attach another layer to this one. Layers attached to a GeometryLayer will
     * be available in `geometryLayer.attachedLayers`.
     *
     * @param {Layer} layer - The layer to attach, that must have an `update`
     * method.
     */

  }, {
    key: "attach",
    value: function attach(layer) {
      if (!layer.update) {
        throw new Error("Missing 'update' function -> can't attach layer\n                ".concat(layer.id));
      }

      this.attachedLayers.push(layer); // To traverse GeometryLayer object3d attached

      layer.parent = this;
    }
    /**
     * Detach a layer attached to this one. See {@link attach} to learn how to
     * attach a layer.
     *
     * @param {Layer} layer - The layer to detach.
     *
     * @return {boolean} Confirmation of the detachment of the layer.
     */

  }, {
    key: "detach",
    value: function detach(layer) {
      var count = this.attachedLayers.length;
      this.attachedLayers = this.attachedLayers.filter(function (attached) {
        return attached.id != layer.id;
      });
      layer.parent = undefined;
      return this.attachedLayers.length < count;
    }
    /**
     * All layer's meshs are removed from scene and disposed from video device.
     */

  }, {
    key: "delete",
    value: function _delete() {
      var _this2 = this;

      // if Layer is attached
      if (this.parent) {
        traverse(this.parent.object3d, function (obj) {
          if (obj.layer && obj.layer.id == _this2.id) {
            obj.parent.remove(obj);
            disposeMesh(obj);
          }
        });
      }

      if (this.object3d.parent) {
        this.object3d.parent.remove(this.object3d);
      }

      this.object3d.traverse(disposeMesh);
    }
    /**
     * Picking method for this layer. It uses the {@link Picking#pickObjectsAt}
     * method.
     *
     * @param {View} view - The view instance.
     * @param {Object} coordinates - The coordinates to pick in the view. It
     * should have at least `x` and `y` properties.
     * @param {number} radius - Radius of the picking circle.
     * @param {Array} target - target to push result.
     *
     * @return {Array} An array containing all targets picked under the
     * specified coordinates.
     */

  }, {
    key: "pickObjectsAt",
    value: function pickObjectsAt(view, coordinates) {
      var radius = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.options.defaultPickingRadius;
      var target = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : [];
      return _Picking["default"].pickObjectsAt(view, coordinates, radius, this.object3d, target, this.threejsLayer);
    }
  }]);
  return GeometryLayer;
}(_Layer2["default"]);

var _default = GeometryLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/InfoLayer.js":
/*!****************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/InfoLayer.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.InfoTiledGeometryLayer = void 0;

var _toConsumableArray2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/toConsumableArray */ "./node_modules/@babel/runtime/helpers/toConsumableArray.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var InfoLayer = /*#__PURE__*/function () {
  function InfoLayer(layer) {
    (0, _classCallCheck2["default"])(this, InfoLayer);
    this.layer = layer;
  } // eslint-disable-next-line


  (0, _createClass2["default"])(InfoLayer, [{
    key: "clear",
    value: function clear() {} // eslint-disable-next-line

  }, {
    key: "update",
    value: function update() {}
  }]);
  return InfoLayer;
}();
/**
 * InfoTiledGeometryLayer that provides some states layer informations. These
 * informations are displayed tiles, displayed {@link ColorLayer} and {@link
 * ElevationLayer} and extent of displayed tiles.
 *
 * @class InfoTiledGeometryLayer
 *
 * @property {object} displayed
 * @property {Layer[]} displayed.layers - Displayed {@link ColorLayer} and {@link ElevationLayer}.
 * @property {Extent} displayed.extent - {@link Extent} of displayed tiles.
 * @property {Set} displayed.tiles - Set of displayed tiles.
 */


exports["default"] = InfoLayer;

var InfoTiledGeometryLayer = /*#__PURE__*/function (_InfoLayer) {
  (0, _inherits2["default"])(InfoTiledGeometryLayer, _InfoLayer);

  var _super = _createSuper(InfoTiledGeometryLayer);

  function InfoTiledGeometryLayer(tiledGeometryLayer) {
    var _this;

    (0, _classCallCheck2["default"])(this, InfoTiledGeometryLayer);
    _this = _super.call(this, tiledGeometryLayer);
    _this.displayed = {
      tiles: new Set()
    };
    Object.defineProperty(_this.displayed, 'layers', {
      get: function get() {
        var layers = [];

        _this.displayed.tiles.forEach(function (tile) {
          var m = tile.material;
          layers = (0, _toConsumableArray2["default"])(new Set([].concat((0, _toConsumableArray2["default"])(layers), (0, _toConsumableArray2["default"])(m.colorLayerIds.filter(function (id) {
            return m.getLayer(id);
          })), (0, _toConsumableArray2["default"])(m.elevationLayerIds))));
        });

        return _this.layer.attachedLayers.filter(function (l) {
          return layers.includes(l.id);
        });
      }
    });
    Object.defineProperty(_this.displayed, 'extent', {
      get: function get() {
        var extent = new _Extent["default"](_this.layer.extent.crs, Infinity, -Infinity, Infinity, -Infinity);
        extent.min = +Infinity;
        extent.max = -Infinity;

        _this.displayed.tiles.forEach(function (tile) {
          extent.union(tile.extent);
          extent.min = Math.min(tile.obb.z.min, extent.min);
          extent.max = Math.max(tile.obb.z.max, extent.max);
        });

        return extent;
      }
    });
    return _this;
  }

  (0, _createClass2["default"])(InfoTiledGeometryLayer, [{
    key: "clear",
    value: function clear() {
      this.displayed.tiles.clear();
    }
  }, {
    key: "update",
    value: function update(tile) {
      if (tile.material.visible) {
        this.displayed.tiles.add(tile);
      } else {
        this.displayed.tiles["delete"](tile);
      }
    }
  }]);
  return InfoTiledGeometryLayer;
}(InfoLayer);

exports.InfoTiledGeometryLayer = InfoTiledGeometryLayer;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/LabelLayer.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/LabelLayer.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _LayerUpdateState = _interopRequireDefault(__webpack_require__(/*! ./LayerUpdateState */ "./node_modules/itowns/lib/Layer/LayerUpdateState.js"));

var _ObjectRemovalHelper = _interopRequireDefault(__webpack_require__(/*! ../Process/ObjectRemovalHelper */ "./node_modules/itowns/lib/Process/ObjectRemovalHelper.js"));

var _Layer2 = _interopRequireDefault(__webpack_require__(/*! ./Layer */ "./node_modules/itowns/lib/Layer/Layer.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _Label = _interopRequireDefault(__webpack_require__(/*! ../Core/Label */ "./node_modules/itowns/lib/Core/Label.js"));

var _Feature = __webpack_require__(/*! ../Core/Feature */ "./node_modules/itowns/lib/Core/Feature.js");

var _Style = __webpack_require__(/*! ../Core/Style */ "./node_modules/itowns/lib/Core/Style.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var coord = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);

var _extent = new _Extent["default"]('EPSG:4326', 0, 0, 0, 0);
/**
 * A layer to handle a bunch of `Label`. This layer can be created on its own,
 * but it is better to use the option `addLabelLayer` on another `Layer` to let
 * it work with it (see the `vector_tile_raster_2d` example).
 *
 * @property {boolean} isLabelLayer - Used to checkout whether this layer is a
 * LabelLayer.  Default is true. You should not change this, as it is used
 * internally for optimisation.
 */


var LabelLayer = /*#__PURE__*/function (_Layer) {
  (0, _inherits2["default"])(LabelLayer, _Layer);

  var _super = _createSuper(LabelLayer);

  /**
   * @constructor
   * @extends Layer
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {Object} [config] - Optional configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name.
   * @param {domElement|function} config.domElement - An HTML domElement.
   * If set, all `Label` displayed within the current instance `LabelLayer`
   * will be this domElement.
   *
   * It can be set to a method. The single parameter of this method gives the
   * properties of each feature on which a `Label` is created.
   *
   * If set, all the parameters set in the `LabelLayer` `Style.text` will be overridden,
   * except for the `Style.text.anchor` parameter which can help place the label.
   */
  function LabelLayer(id) {
    var _this;

    var config = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, LabelLayer);
    _this = _super.call(this, id, config);
    _this.isLabelLayer = true;
    _this.domElement = document.createElement('div');
    _this.domElement.id = "itowns-label-".concat(_this.id);

    _this.defineLayerProperty('visible', true, function () {
      _this.domElement.style.display = _this.visible ? 'block' : 'none';
    });

    _this.buildExtent = true;
    _this.labelDomelement = config.domElement; // The margin property defines a space around each label that cannot be occupied by another label.
    // For example, if some labelLayer has a margin value of 5, there will be at least 10 pixels
    // between each labels of the layer
    // TODO : this property should be moved to Style after refactoring style properties structure

    _this.margin = config.margin;
    return _this;
  }
  /**
   * Reads each {@link FeatureGeometry} that contains label configuration, and
   * creates the corresponding {@link Label}. To create a `Label`, a geometry
   * needs to have a `label` object with at least a few properties:
   * - `content`, which refers to `Label#content`
   * - `position`, which refers to `Label#position`
   * - (optional) `config`, containing miscellaneous configuration for the
   *   label
   *
   * The geometry (or its parent Feature) needs to have a Style set.
   *
   * @param {FeatureCollection} data - The FeatureCollection to read the
   * labels from.
   * @param {Extent} extent
   *
   * @return {Label[]} An array containing all the created labels.
   */


  (0, _createClass2["default"])(LabelLayer, [{
    key: "convert",
    value: function convert(data, extent) {
      var _this2 = this;

      var labels = [];
      var layerField = this.style && this.style.text && this.style.text.field; // Converting the extent now is faster for further operation

      extent.as(data.crs, _extent);
      coord.crs = data.crs;
      var globals = {
        zoom: extent.zoom
      };
      data.features.forEach(function (f) {
        // TODO: add support for LINE and POLYGON
        if (f.type !== _Feature.FEATURE_TYPES.POINT) {
          return;
        }

        var featureField = f.style && f.style.text.field;
        f.geometries.forEach(function (g) {
          // NOTE: this only works because only POINT is supported, it
          // needs more work for LINE and POLYGON
          coord.setFromArray(f.vertices, g.size * g.indices[0].offset); // Transform coordinate to data.crs projection

          coord.applyMatrix4(data.matrixWorld);

          if (f.size == 2) {
            coord.z = 0;
          }

          if (!_extent.isPointInside(coord)) {
            return;
          }

          var geometryField = g.properties.style && g.properties.style.text.field;
          var content;
          var context = {
            globals: globals,
            properties: function properties() {
              return g.properties;
            }
          };

          if (_this2.labelDomelement) {
            content = (0, _Style.readExpression)(_this2.labelDomelement, context);
          } else if (!geometryField && !featureField && !layerField) {
            // Check if there is an icon, with no text
            if (!(g.properties.style && (g.properties.style.icon.source || g.properties.style.icon.key)) && !(f.style && (f.style.icon.source || f.style.icon.key)) && !(_this2.style && (_this2.style.icon.source || _this2.style.icon.key))) {
              return;
            }
          } else if (geometryField) {
            content = g.properties.style.getTextFromProperties(context);
          } else if (featureField) {
            content = f.style.getTextFromProperties(context);
          } else if (layerField) {
            content = _this2.style.getTextFromProperties(context);
          }

          var style = (g.properties.style || f.style || _this2.style).symbolStylefromContext(context);

          var label = new _Label["default"](content, coord.clone(), style, _this2.source.sprites);
          label.layerId = _this2.id;
          label.padding = _this2.margin || label.padding;

          if (f.size == 2) {
            label.needsAltitude = true;
          }

          labels.push(label);
        });
      });
      return labels;
    } // placeholder

  }, {
    key: "preUpdate",
    value: function preUpdate() {}
  }, {
    key: "update",
    value: function update(context, layer, node, parent) {
      var _this3 = this;

      if (!parent && node.children.length) {
        // if node has been removed dispose three.js resource
        _ObjectRemovalHelper["default"].removeChildrenAndCleanupRecursively(this, node);

        return;
      }

      if (this.frozen || !node.visible || !this.visible) {
        return;
      }

      var extentsDestination = node.getExtentsByProjection(this.source.crs) || [node.extent];
      var zoomDest = extentsDestination[0].zoom;

      if (zoomDest < layer.zoom.min || zoomDest > layer.zoom.max) {
        return;
      }

      if (node.layerUpdateState[this.id] === undefined) {
        node.layerUpdateState[this.id] = new _LayerUpdateState["default"]();
      }

      var elevationLayer = node.material.getElevationLayer();

      if (elevationLayer && node.layerUpdateState[elevationLayer.id].canTryUpdate()) {
        node.children.forEach(function (c) {
          if (c.isLabel && c.needsAltitude && c.updateElevationFromLayer(_this3.parent)) {
            c.update3dPosition(context.view.referenceCrs);
          }
        });
      }

      if (!node.layerUpdateState[this.id].canTryUpdate()) {
        return;
      } else if (!this.source.extentInsideLimit(node.extent, zoomDest)) {
        node.layerUpdateState[this.id].noMoreUpdatePossible();
        return;
      }

      node.layerUpdateState[this.id].newTry();
      var command = {
        layer: this,
        extentsSource: extentsDestination,
        view: context.view,
        threejsLayer: this.threejsLayer,
        requester: node
      };
      return context.scheduler.execute(command).then(function (result) {
        if (!result) {
          return;
        }

        var renderer = context.view.mainLoop.gfxEngine.label2dRenderer;
        var labelsDiv = [];
        result.forEach(function (labels) {
          if (!node.parent) {
            labels.forEach(function (l) {
              _ObjectRemovalHelper["default"].removeChildrenAndCleanupRecursively(_this3, l);

              renderer.removeLabelDOM(l);
            });
            return;
          }

          labels.forEach(function (label) {
            if (label.needsAltitude) {
              label.updateElevationFromLayer(_this3.parent);
            }

            var present = node.children.find(function (l) {
              return l.isLabel && l.baseContent == label.baseContent;
            });

            if (!present) {
              node.add(label);
              label.update3dPosition(context.view.referenceCrs);

              if (node.level < 4) {
                label.horizonCullingPoint = new THREE.Vector3();
                label.updateHorizonCullingPoint();
              }

              labelsDiv.push(label.content);
            }
          });
        });

        if (labelsDiv.length > 0) {
          var _nodeDomElement$dom;

          // Add all labels for this tile at once to batch it
          var nodeDomElement = node.domElements[_this3.id];

          if (!nodeDomElement) {
            nodeDomElement = {
              dom: document.createElement('div'),
              visible: true
            };
            node.domElements[_this3.id] = nodeDomElement;
          }

          (_nodeDomElement$dom = nodeDomElement.dom).append.apply(_nodeDomElement$dom, labelsDiv);

          var closestDomElement = node.findClosestDomElement(_this3.id);

          (closestDomElement && closestDomElement.dom || _this3.domElement).appendChild(nodeDomElement.dom);

          nodeDomElement.visible = true; // Batch update the dimensions of labels all at once to avoid
          // redraw for at least this tile.

          result.forEach(function (labels) {
            return labels.forEach(function (label) {
              return label.initDimensions();
            });
          });
          result.forEach(function (labels) {
            return labels.forEach(function (label) {
              label.visible = false;
            });
          }); // Sort labels so they can be the first in the renderer. That
          // way, we cull labels on parent tile first, and then on
          // children tile. This allows a z-order priority, and reduce
          // flickering.

          node.children.sort(function (c) {
            return c.isLabel ? -c.order : 1;
          }); // Necessary event listener, to remove any Label attached to
          // this tile

          node.addEventListener('removed', function () {
            result.forEach(function (labels) {
              return labels.forEach(function (l) {
                return node.remove(l);
              });
            });

            _this3.removeNodeDomElement(node);
          });
        }

        node.layerUpdateState[_this3.id].noMoreUpdatePossible();
      });
    }
  }, {
    key: "removeLabelsFromNodeRecursive",
    value: function removeLabelsFromNodeRecursive(node) {
      var _this4 = this;

      node.children.forEach(function (c) {
        if (c.isLabel && c.layerId === _this4.id) {
          node.remove(c);
        } else if (c.isTileMesh) {
          _this4.removeLabelsFromNodeRecursive(c);
        }
      });
      this.removeNodeDomElement(node);
    }
  }, {
    key: "removeNodeDomElement",
    value: function removeNodeDomElement(node) {
      if (node.domElements[this.id]) {
        var child = node.domElements[this.id].dom;
        child.parentElement.removeChild(child);
        delete node.domElements[this.id];
      }
    }
  }, {
    key: "delete",
    value: function _delete() {
      var _this5 = this;

      this.domElement.parentElement.removeChild(this.domElement);
      this.parent.level0Nodes.forEach(function (obj) {
        return _this5.removeLabelsFromNodeRecursive(obj);
      });
    }
  }]);
  return LabelLayer;
}(_Layer2["default"]);

var _default = LabelLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/Layer.js":
/*!************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/Layer.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.ImageryLayers = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _LayerUpdateStrategy = __webpack_require__(/*! ./LayerUpdateStrategy */ "./node_modules/itowns/lib/Layer/LayerUpdateStrategy.js");

var _InfoLayer = _interopRequireDefault(__webpack_require__(/*! ./InfoLayer */ "./node_modules/itowns/lib/Layer/InfoLayer.js"));

var _Source = _interopRequireDefault(__webpack_require__(/*! ../Source/Source */ "./node_modules/itowns/lib/Source/Source.js"));

var _Cache = _interopRequireDefault(__webpack_require__(/*! ../Core/Scheduler/Cache */ "./node_modules/itowns/lib/Core/Scheduler/Cache.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @property {boolean} isLayer - Used to checkout whether this layer is a Layer.
 * Default is true. You should not change this, as it is used internally for
 * optimisation.
 * @property {boolean} ready - This property is false when the layer isn't added.
 * It's true when the layer is added and all initializations are done.
 * @property {Source} source - This source determines the datas to be displayed with the layer.
 * The layer determines how this data are displayed.
 * By example:
 * * For ColorLayer/ElevationLayer, the source datas are rasterised (if it's necessary).
 * * For GeometryLayer, the source datas are converted to meshes (not possible for the raster data sources).
 * @property {Promise} whenReady - this promise is resolved when the layer is added and all initializations are done.
 * This promise is resolved with this layer.
 * This promise is returned by [View#addLayer]{@link View}.
 * @property {boolean} [addLabelLayer=false] - Used to tell if this layer has
 * labels to display from its data. For example, it needs to be set to `true`
 * for a layer with vector tiles. If it's `true` a new `LabelLayer` is added and attached to this `Layer`.
 * @property {object} [zoom] - This property is used only the layer is attached to [TiledGeometryLayer]{@link TiledGeometryLayer}.
 * By example,
 * The layer checks the tile zoom level to determine if the layer is visible in this tile.
 *
 * ![tiled geometry](/docs/static/images/wfszoommaxmin.jpeg)
 * _In `GlobeView`, **red lines** represents the **WGS84 grid** and **orange lines** the Pseudo-mercator grid_
 * _In this example [WFS to 3D objects](http://www.itowns-project.org/itowns/examples/index.html#source_stream_wfs_3d), the building layer zoom min is 14._
 * _In the lower part of the picture, the zoom tiles 14 have buildings, while in the upper part of the picture, the level 13 tiles have no buildings._
 *
 * @property {number} [zoom.max=Infinity] - this is the maximum zoom beyond which it'll be hidden.
 * @property {number} [zoom.min=0] - this is the minimum zoom from which it'll be visible.
 *
 */
var Layer = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(Layer, _THREE$EventDispatche);

  var _super = _createSuper(Layer);

  /**
   * Don't use directly constructor to instance a new Layer. Instead, use
   * another available type of Layer, implement a new one inheriting from this
   * one or use [View#addLayer]{@link View}.
   *
   * @constructor
   * @protected
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {Object} config - configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name.
   * @param {Source|boolean} config.source - instantiated Source specifies data source to display.
   * if config.source is a boolean, it can only be false. if config.source is false,
   * the layer doesn't need Source (like debug Layer or procedural layer).
   * @param {number} [config.cacheLifeTime=Infinity] - set life time value in cache.
   * This value is used for [Cache]{@link Cache} expiration mechanism.
   *
   * @example
   * // Add and create a new Layer
   * const newLayer = new Layer('id', options);
   * view.addLayer(newLayer);
   *
   * // Change layer's visibility
   * const layerToChange = view.getLayerById('idLayerToChange');
   * layerToChange.visible = false;
   * view.notifyChange(); // update viewer
   *
   * // Change layer's opacity
   * const layerToChange = view.getLayerById('idLayerToChange');
   * layerToChange.opacity = 0.5;
   * view.notifyChange(); // update viewer
   *
   * // Listen properties
   * const layerToListen = view.getLayerById('idLayerToListen');
   * layerToListen.addEventListener('visible-property-changed', (event) => console.log(event));
   * layerToListen.addEventListener('opacity-property-changed', (event) => console.log(event));
   */
  function Layer(id) {
    var _this;

    var config = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, Layer);

    /* istanbul ignore next */
    if (config.projection) {
      console.warn('Layer projection parameter is deprecated, use crs instead.');
      config.crs = config.crs || config.projection;
    }

    if (config.source === undefined || config.source === true) {
      throw new Error("Layer ".concat(id, " needs Source"));
    }

    _this = _super.call(this);
    _this.isLayer = true;
    Object.assign((0, _assertThisInitialized2["default"])(_this), config);
    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'id', {
      value: id,
      writable: false
    }); // Default properties

    _this.options = config.options || {};

    if (!_this.updateStrategy) {
      _this.updateStrategy = {
        type: _LayerUpdateStrategy.STRATEGY_MIN_NETWORK_TRAFFIC,
        options: {}
      };
    }

    _this.defineLayerProperty('frozen', false);

    if (config.zoom) {
      _this.zoom = {
        max: config.zoom.max,
        min: config.zoom.min || 0
      };

      if (_this.zoom.max == undefined) {
        _this.zoom.max = Infinity;
      }
    } else {
      _this.zoom = {
        max: Infinity,
        min: 0
      };
    }

    _this.info = new _InfoLayer["default"]((0, _assertThisInitialized2["default"])(_this));
    _this.source = _this.source || new _Source["default"]({
      url: 'none'
    });
    _this.ready = false;
    _this._promises = [];
    _this.whenReady = new Promise(function (re, rj) {
      _this._resolve = re;
      _this._reject = rj;
    }).then(function () {
      _this.ready = true;

      _this.source.onLayerAdded({
        out: (0, _assertThisInitialized2["default"])(_this)
      });

      return (0, _assertThisInitialized2["default"])(_this);
    });

    _this._promises.push(_this.source.whenReady);

    _this.cache = new _Cache["default"](config.cacheLifeTime);
    _this.mergeFeatures = _this.mergeFeatures === undefined ? true : config.mergeFeatures; // TODO: verify but this.source.filter seems be always undefined.

    _this.filter = _this.filter || _this.source.filter;
    return _this;
  }

  (0, _createClass2["default"])(Layer, [{
    key: "addInitializationStep",
    value: function addInitializationStep() {
      // Possibility to add rejection handler, if it's necessary.
      var resolve;

      this._promises.push(new Promise(function (re) {
        resolve = re;
      }));

      return resolve;
    }
    /**
     * Defines a property for this layer, with a default value and a callback
     * executed when the property changes.
     * <br><br>
     * When changing the property, it also emits an event, named following this
     * convention: `${propertyName}-property-changed`, with `${propertyName}`
     * being replaced by the name of the property.  For example, if the added
     * property name is `frozen`, it will emit a `frozen-property-changed`.
     * <br><br>
     * @example <caption>The emitted event has some properties assigned to it</caption>
     * event = {
     *     new: {
     *         ${propertyName}: * // the new value of the property
     *     },
     *     previous: {
     *         ${propertyName}: * // the previous value of the property
     *     },
     *     target: Layer // the layer it has been dispatched from
     *     type: string // the name of the emitted event
     * }
     *
     * @param {string} propertyName - The name of the property, also used in
     * the emitted event name.
     * @param {*} defaultValue - The default set value.
     * @param {function} [onChange] - The function executed when the property is
     * changed. Parameters are the layer the property is defined on, and the
     * name of the property.
     */

  }, {
    key: "defineLayerProperty",
    value: function defineLayerProperty(propertyName, defaultValue, onChange) {
      var _this2 = this;

      var existing = Object.getOwnPropertyDescriptor(this, propertyName);

      if (!existing || !existing.set) {
        var property = this[propertyName] == undefined ? defaultValue : this[propertyName];
        Object.defineProperty(this, propertyName, {
          get: function get() {
            return property;
          },
          set: function set(newValue) {
            if (property !== newValue) {
              var event = {
                type: "".concat(propertyName, "-property-changed"),
                previous: {},
                "new": {}
              };
              event.previous[propertyName] = property;
              event["new"][propertyName] = newValue;
              property = newValue;

              if (onChange) {
                onChange(_this2, propertyName);
              }

              _this2.dispatchEvent(event);
            }
          }
        });
      }
    } // Placeholder
    // eslint-disable-next-line

  }, {
    key: "convert",
    value: function convert(data) {
      return data;
    }
  }, {
    key: "getData",
    value: function getData(from, to) {
      var _this3 = this;

      var key = this.source.requestToKey(this.source.isVectorSource ? to : from);
      var data = this.cache.getByArray(key);

      if (!data) {
        data = this.source.loadData(from, this).then(function (feat) {
          return _this3.convert(feat, to);
        }, function (err) {
          throw err;
        });
        this.cache.setByArray(data, key);
      }

      return data;
    }
    /**
     * Determines whether the specified feature is valid data.
     *
     * @param      {Feature}  feature  The feature
     * @returns {Feature} the feature is returned if it's valided
     */
    // eslint-disable-next-line

  }, {
    key: "isValidData",
    value: function isValidData() {}
    /**
     * Remove and dispose all objects from layer.
     */
    // eslint-disable-next-line

  }, {
    key: "delete",
    value: function _delete() {
      console.warn('Function delete doesn\'t exist for this layer');
    }
  }]);
  return Layer;
}(THREE.EventDispatcher);

var _default = Layer;
exports["default"] = _default;
var ImageryLayers = {
  // move this to new index
  // After the modification :
  //      * the minimum sequence will always be 0
  //      * the maximum sequence will always be layers.lenght - 1
  // the ordering of all layers (Except that specified) doesn't change
  moveLayerToIndex: function (layer, newIndex, imageryLayers) {
    newIndex = Math.min(newIndex, imageryLayers.length - 1);
    newIndex = Math.max(newIndex, 0);
    var oldIndex = layer.sequence;

    var _iterator = _createForOfIteratorHelper(imageryLayers),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var imagery = _step.value;

        if (imagery.id === layer.id) {
          // change index of specified layer
          imagery.sequence = newIndex;
        } else if (imagery.sequence > oldIndex && imagery.sequence <= newIndex) {
          // down all layers between the old index and new index (to compensate the deletion of the old index)
          imagery.sequence--;
        } else if (imagery.sequence >= newIndex && imagery.sequence < oldIndex) {
          // up all layers between the new index and old index (to compensate the insertion of the new index)
          imagery.sequence++;
        }
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }
  },
  moveLayerDown: function (layer, imageryLayers) {
    if (layer.sequence > 0) {
      this.moveLayerToIndex(layer, layer.sequence - 1, imageryLayers);
    }
  },
  moveLayerUp: function (layer, imageryLayers) {
    var m = imageryLayers.length - 1;

    if (layer.sequence < m) {
      this.moveLayerToIndex(layer, layer.sequence + 1, imageryLayers);
    }
  },
  getColorLayersIdOrderedBySequence: function (imageryLayers) {
    var copy = Array.from(imageryLayers);
    copy.sort(function (a, b) {
      return a.sequence - b.sequence;
    });
    return copy.map(function (l) {
      return l.id;
    });
  }
};
exports.ImageryLayers = ImageryLayers;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/LayerUpdateState.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/LayerUpdateState.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var UPDATE_STATE = {
  IDLE: 0,
  PENDING: 1,
  ERROR: 2,
  DEFINITIVE_ERROR: 3,
  FINISHED: 4
};
var PAUSE_BETWEEN_ERRORS = [1.0, 3.0, 7.0, 60.0];
/**
 * LayerUpdateState is the update state of a layer, for a given object (e.g tile).
 * It stores information to allow smart update decisions, and especially network
 * error handling.
 * @constructor
 */

var LayerUpdateState = /*#__PURE__*/function () {
  function LayerUpdateState() {
    (0, _classCallCheck2["default"])(this, LayerUpdateState);
    this.state = UPDATE_STATE.IDLE;
    this.lastErrorTimestamp = 0;
    this.errorCount = 0; // lowestLevelError is lowest level with error.
    //
    // if lowestLevelError is Infinity, so there has been no error.
    //
    // if lowestLevelError isn't Infinity, so the strategy is to find the
    // highest level between the current level and lowestLevelError.
    // the dichotomy method is used to find it.

    this.failureParams = {
      lowestLevelError: Infinity
    };
  }

  (0, _createClass2["default"])(LayerUpdateState, [{
    key: "canTryUpdate",
    value: function canTryUpdate() {
      var timestamp = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Date.now();

      switch (this.state) {
        case UPDATE_STATE.IDLE:
          {
            return true;
          }

        case UPDATE_STATE.DEFINITIVE_ERROR:
        case UPDATE_STATE.PENDING:
        case UPDATE_STATE.FINISHED:
          {
            return false;
          }

        case UPDATE_STATE.ERROR:
        default:
          {
            var errorDuration = this.secondsUntilNextTry() * 1000;
            return errorDuration <= timestamp - this.lastErrorTimestamp;
          }
      }
    }
  }, {
    key: "secondsUntilNextTry",
    value: function secondsUntilNextTry() {
      if (this.state !== UPDATE_STATE.ERROR) {
        return 0;
      }

      var idx = Math.max(0, Math.min(this.errorCount, PAUSE_BETWEEN_ERRORS.length) - 1);
      return PAUSE_BETWEEN_ERRORS[idx];
    }
  }, {
    key: "newTry",
    value: function newTry() {
      this.state = UPDATE_STATE.PENDING;
    }
  }, {
    key: "success",
    value: function success() {
      this.lastErrorTimestamp = 0;
      this.state = UPDATE_STATE.IDLE;
    }
  }, {
    key: "noMoreUpdatePossible",
    value: function noMoreUpdatePossible() {
      this.state = UPDATE_STATE.FINISHED;
    }
  }, {
    key: "noData",
    value: function noData(failureParams) {
      this.state = UPDATE_STATE.IDLE;
      this.failureParams.lowestLevelError = Math.min(failureParams.targetLevel, this.failureParams.lowestLevelError);
    }
  }, {
    key: "failure",
    value: function failure(timestamp, definitive, failureParams) {
      if (failureParams && failureParams.targetLevel != undefined) {
        this.failureParams.lowestLevelError = Math.min(failureParams.targetLevel, this.failureParams.lowestLevelError);
      }

      this.lastErrorTimestamp = timestamp;
      this.state = definitive ? UPDATE_STATE.DEFINITIVE_ERROR : UPDATE_STATE.ERROR;
      this.errorCount++;
    }
  }, {
    key: "inError",
    value: function inError() {
      return this.state == UPDATE_STATE.DEFINITIVE_ERROR || this.state == UPDATE_STATE.ERROR;
    }
  }]);
  return LayerUpdateState;
}();

var _default = LayerUpdateState;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/LayerUpdateStrategy.js":
/*!**************************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/LayerUpdateStrategy.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.STRATEGY_PROGRESSIVE = exports.STRATEGY_MIN_NETWORK_TRAFFIC = exports.STRATEGY_GROUP = exports.STRATEGY_DICHOTOMY = void 0;
exports.chooseNextLevelToFetch = chooseNextLevelToFetch;

var _RasterTile = __webpack_require__(/*! ../Renderer/RasterTile */ "./node_modules/itowns/lib/Renderer/RasterTile.js");

/**
 * This modules implements various layer update strategies.
 *
 * Default strategy is STRATEGY_MIN_NETWORK_TRAFFIC which aims
 * to reduce the amount of network traffic.
 */
var STRATEGY_MIN_NETWORK_TRAFFIC = 0;
exports.STRATEGY_MIN_NETWORK_TRAFFIC = STRATEGY_MIN_NETWORK_TRAFFIC;
var STRATEGY_GROUP = 1;
exports.STRATEGY_GROUP = STRATEGY_GROUP;
var STRATEGY_PROGRESSIVE = 2;
exports.STRATEGY_PROGRESSIVE = STRATEGY_PROGRESSIVE;
var STRATEGY_DICHOTOMY = 3;
exports.STRATEGY_DICHOTOMY = STRATEGY_DICHOTOMY;

function _minimizeNetworkTraffic(node, nodeLevel, currentLevel) {
  if (node.pendingSubdivision) {
    return currentLevel;
  }

  return nodeLevel;
} // Maps nodeLevel to groups defined in layer's options
// eg with groups = [3, 7, 12]:
//     * nodeLevel = 2 -> 3
//     * nodeLevel = 4 -> 3
//     * nodeLevel = 7 -> 7
//     * nodeLevel = 15 -> 12


function _group(nodeLevel, options) {
  var f = options.groups.filter(function (val) {
    return val <= nodeLevel;
  });
  return f.length ? f[f.length - 1] : options.groups[0];
}

function _progressive(nodeLevel, currentLevel, options) {
  return Math.min(nodeLevel, currentLevel + (options.increment || 1));
} // Load textures at mid-point between current level and node's level.
// This produces smoother transitions and a single fetch updates multiple
// tiles thanks to caching.


function _dichotomy(nodeLevel, currentLevel) {
  var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

  if (currentLevel == _RasterTile.EMPTY_TEXTURE_ZOOM) {
    return options.zoom ? options.zoom.min : 0;
  }

  return Math.min(nodeLevel, Math.ceil((currentLevel + nodeLevel) / 2));
}

function chooseNextLevelToFetch(strategy, node) {
  var nodeLevel = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : node.level;
  var currentLevel = arguments.length > 3 ? arguments[3] : undefined;
  var layer = arguments.length > 4 ? arguments[4] : undefined;
  var failureParams = arguments.length > 5 ? arguments[5] : undefined;
  var nextLevelToFetch;
  var maxZoom = layer.source.zoom ? layer.source.zoom.max : Infinity;

  if (failureParams.lowestLevelError != Infinity) {
    nextLevelToFetch = _dichotomy(failureParams.lowestLevelError, currentLevel, layer.source);
    nextLevelToFetch = failureParams.lowestLevelError == nextLevelToFetch ? nextLevelToFetch - 1 : nextLevelToFetch;

    if (strategy == STRATEGY_GROUP) {
      nextLevelToFetch = _group(nextLevelToFetch, layer.updateStrategy.options);
    }
  } else {
    switch (strategy) {
      case STRATEGY_GROUP:
        nextLevelToFetch = _group(nodeLevel, layer.updateStrategy.options);
        break;

      case STRATEGY_PROGRESSIVE:
        {
          nextLevelToFetch = _progressive(nodeLevel, currentLevel, layer.updateStrategy.options);
          break;
        }

      case STRATEGY_DICHOTOMY:
        nextLevelToFetch = _dichotomy(nodeLevel, currentLevel, layer.source);
        break;
      // default strategy

      case STRATEGY_MIN_NETWORK_TRAFFIC:
      default:
        nextLevelToFetch = _minimizeNetworkTraffic(node, nodeLevel, currentLevel);
    }

    nextLevelToFetch = Math.min(nextLevelToFetch, maxZoom);
  }

  return nextLevelToFetch;
}

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/OrientedImageLayer.js":
/*!*************************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/OrientedImageLayer.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _GeometryLayer2 = _interopRequireDefault(__webpack_require__(/*! ./GeometryLayer */ "./node_modules/itowns/lib/Layer/GeometryLayer.js"));

var _OrientedImageMaterial = _interopRequireDefault(__webpack_require__(/*! ../Renderer/OrientedImageMaterial */ "./node_modules/itowns/lib/Renderer/OrientedImageMaterial.js"));

var _GeoJsonParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/GeoJsonParser */ "./node_modules/itowns/lib/Parser/GeoJsonParser.js"));

var _CameraCalibrationParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/CameraCalibrationParser */ "./node_modules/itowns/lib/Parser/CameraCalibrationParser.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _OrientationUtils = _interopRequireDefault(__webpack_require__(/*! ../Utils/OrientationUtils */ "./node_modules/itowns/lib/Utils/OrientationUtils.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var coord = new _Coordinates["default"]('EPSG:4978', 0, 0, 0);

var commandCancellation = function (cmd) {
  return cmd.requester.id !== cmd.layer.currentPano.id;
};

function updatePano(context, camera, layer) {
  var newPano = layer.mostNearPano(camera.position); // detection of oriented image change

  var currentId = layer.currentPano ? layer.currentPano.id : undefined;

  if (newPano && currentId != newPano.id) {
    layer.currentPano = newPano; // callback to indicate current pano has changed

    layer.onPanoChanged({
      previousPanoPosition: layer.getPreviousPano() ? layer.getPreviousPano().position : undefined,
      currentPanoPosition: layer.getCurrentPano().position,
      nextPanoPosition: layer.getNextPano().position
    }); // prepare informations about the needed textures

    var panoCameras = newPano.geometries[0].properties.idSensors;
    var imagesInfo = layer.cameras.map(function (cam) {
      return {
        cameraId: cam.name,
        panoId: newPano.id,
        as: function as() {}
      };
    }).filter(function (info) {
      return !panoCameras || panoCameras.includes(info.cameraId);
    });
    var command = {
      layer: layer,
      // put informations about image URL as extent to be used by generic DataSourceProvider, OrientedImageSource will use that.
      extentsSource: imagesInfo,
      view: context.view,
      threejsLayer: layer.threejsLayer,
      requester: newPano,
      earlyDropFunction: commandCancellation
    }; // async call to scheduler to get textures

    context.scheduler.execute(command).then(function (textures) {
      if (newPano.id === layer.currentPano.id) {
        layer.material.setTextures(textures, newPano, layer.getCamerasNameFromFeature(newPano));
        layer.material.updateUniforms(context.camera.camera3D);
        context.view.notifyChange(layer, true);
      }
    }, function () {});
  }
}

function updateBackground(layer) {
  if (layer.background && layer.currentPano) {
    layer.background.position.copy(layer.currentPano.position);
    layer.background.updateMatrixWorld();
    layer.background.material = layer.material || layer.background.material;
  }
}

function createBackground(radius) {
  if (!radius || radius <= 0) {
    return undefined;
  }

  var geometry = new THREE.SphereGeometry(radius, 32, 32);
  var material = new THREE.MeshPhongMaterial({
    color: 0x7777ff,
    side: THREE.DoubleSide,
    transparent: true,
    opacity: 0.5,
    wireframe: true
  });
  var sphere = new THREE.Mesh(geometry, material);
  sphere.visible = true;
  sphere.name = 'OrientedImageBackground';
  return sphere;
}
/**
 * @classdesc OrientedImageLayer loads oriented images, and project these textures on the scene.
 * It is design to create an immersive view. </br>
 * It loads a set of panoramic position and orientation,
 * a set of camera calibration file (it's the same set of camera for each panoramic),
 * and a set of texture (each image for each camera for each panoramic), all organised in an {@link OrientedImageSource}. </br>
 * It creates an {@link OrientedImageMaterial} used to do projective texture mapping on the scene.
 * @extends GeometryLayer
 */


var OrientedImageLayer = /*#__PURE__*/function (_GeometryLayer) {
  (0, _inherits2["default"])(OrientedImageLayer, _GeometryLayer);

  var _super = _createSuper(OrientedImageLayer);

  /**
   * @constructor
   * @param { string } id - The id of the layer, a unique name.
   * @param { Object } config - configuration of the layer
   * @param { number } config.backgroundDistance - Radius in meter of the sphere used as a background
   * @param { function } config.onPanoChanged - callback fired when current panoramic changes
   * @param { string } config.crs - crs projection of the view
   * @param { string } config.orientation - Json object, using GeoJSon format to represent points,
   * it's a set of panoramic position and orientation.
   * @param { string } config.calibrations - Json object, representing a set of camera. see [CameraCalibrationParser]{@link module:CameraCalibrationParser}
   * @param { OrientedImageSource } config.source - Source used to build url of texture for each oriented image,
   * a tecture is need for each camera, for each panoramic.
   */
  function OrientedImageLayer(id) {
    var _this;

    var config = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, OrientedImageLayer);

    /* istanbul ignore next */
    if (config.projection) {
      console.warn('OrientedImageLayer projection parameter is deprecated, use crs instead.');
      config.crs = config.crs || config.projection;
    }

    _this = _super.call(this, id, new THREE.Group(), config);
    _this.background = config.background || createBackground(config.backgroundDistance);
    _this.isOrientedImageLayer = true;

    if (_this.background) {
      _this.object3d.add(_this.background);
    } // currentPano is the current point, means it's the closest from the camera


    _this.currentPano = undefined; // store a callback to fire event when current panoramic change

    _this.onPanoChanged = config.onPanoChanged || function () {}; // function to get cameras name from panoramic feature


    _this.getCamerasNameFromFeature = config.getCamerasNameFromFeature || function () {};

    var resolve = _this.addInitializationStep();

    _this.mergeFeatures = false;
    _this.filteringExtent = false;
    _this.accurate = true;
    var options = {
      out: (0, _assertThisInitialized2["default"])(_this)
    }; // panos is an array of feature point, representing many panoramics.
    // for each point, there is a position and a quaternion attribute.

    _this.source.whenReady.then(function (metadata) {
      return _GeoJsonParser["default"].parse(config.orientation || metadata.orientation, options).then(function (orientation) {
        _this.panos = orientation.features; // the crs input is parsed in geojson parser
        // and returned in options.in

        var crsIn = options["in"].crs;
        var crsOut = config.crs;

        var crs2crs = _OrientationUtils["default"].quaternionFromCRSToCRS(crsIn, crsOut);

        var quat = new THREE.Quaternion(); // add position and quaternion attributes from point feature

        var i = 0;

        var _iterator = _createForOfIteratorHelper(_this.panos),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var pano = _step.value;
            // set position
            coord.crs = pano.crs;
            coord.setFromArray(pano.vertices).applyMatrix4(orientation.matrix);
            pano.position = coord.toVector3(); // set quaternion

            crs2crs(coord, quat);
            pano.quaternion = _OrientationUtils["default"].quaternionFromAttitude(pano.geometries[0].properties).premultiply(quat);
            pano.id = pano.geometries[0].properties.id;
            pano.index = i++;
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      }).then(function () {
        // array of cameras, represent the projective texture configuration for each panoramic.
        _CameraCalibrationParser["default"].parse(config.calibration || metadata.calibration, config).then(function (cameras) {
          _this.cameras = cameras; // create the material

          _this.material = new _OrientedImageMaterial["default"](_this.cameras, config);
          resolve();
        });
      });
    });

    return _this;
  } // eslint-disable-next-line


  (0, _createClass2["default"])(OrientedImageLayer, [{
    key: "update",
    value: function update() {}
  }, {
    key: "boostLight",
    get: function get() {
      return this.material.uniforms.boostLight.value;
    },
    set: function set(value) {
      this.material.uniforms.boostLight.value = value;
    }
  }, {
    key: "preUpdate",
    value: function preUpdate(context) {
      updatePano(context, context.camera.camera3D, this);
      this.material.updateUniforms(context.camera.camera3D);
      updateBackground(this);
    }
  }, {
    key: "getNextPano",
    value: function getNextPano() {
      var index = (this.currentPano.index + 1) % this.panos.length;
      return this.panos[index];
    }
  }, {
    key: "getCurrentPano",
    value: function getCurrentPano() {
      return this.currentPano;
    }
  }, {
    key: "getPreviousPano",
    value: function getPreviousPano() {
      var index = (this.currentPano.index - 1) % this.panos.length;
      return this.panos[index];
    }
    /**
     * Delete background, but doesn't delete OrientedImageLayer.material. For the moment, this material visibility is set to false.
     * You need to replace OrientedImageLayer.material applied on each object, if you want to continue displaying them.
     * This issue (see #1018 {@link https://github.com/iTowns/itowns/issues/1018}) will be fixed when OrientedImageLayer will be a ColorLayer.
     */

  }, {
    key: "delete",
    value: function _delete() {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(OrientedImageLayer.prototype), "delete", this).call(this);
      this.material.visible = false;
      console.warn('You need to replace OrientedImageLayer.material applied on each object. This issue will be fixed when OrientedImageLayer will be a ColorLayer. the material visibility is set to false. To follow issue see https://github.com/iTowns/itowns/issues/1018');
    }
  }, {
    key: "mostNearPano",
    value: function mostNearPano(position) {
      var minDistance = Infinity;
      var nearPano;

      var _iterator2 = _createForOfIteratorHelper(this.panos),
          _step2;

      try {
        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
          var pano = _step2.value;
          var distance = position.distanceTo(pano.position);

          if (distance < minDistance) {
            minDistance = distance;
            nearPano = pano;
          }
        }
      } catch (err) {
        _iterator2.e(err);
      } finally {
        _iterator2.f();
      }

      return nearPano;
    }
  }]);
  return OrientedImageLayer;
}(_GeometryLayer2["default"]);

var _default = OrientedImageLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/PointCloudLayer.js":
/*!**********************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/PointCloudLayer.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _GeometryLayer2 = _interopRequireDefault(__webpack_require__(/*! ./GeometryLayer */ "./node_modules/itowns/lib/Layer/GeometryLayer.js"));

var _PointsMaterial = _interopRequireWildcard(__webpack_require__(/*! ../Renderer/PointsMaterial */ "./node_modules/itowns/lib/Renderer/PointsMaterial.js"));

var _Picking = _interopRequireDefault(__webpack_require__(/*! ../Core/Picking */ "./node_modules/itowns/lib/Core/Picking.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

var point = new THREE.Vector3();
var bboxMesh = new THREE.Mesh();
var box3 = new THREE.Box3();
bboxMesh.geometry.boundingBox = box3;

function initBoundingBox(elt, layer) {
  elt.tightbbox.getSize(box3.max);
  box3.max.multiplyScalar(0.5);
  box3.min.copy(box3.max).negate();
  elt.obj.boxHelper = new THREE.BoxHelper(bboxMesh);
  elt.obj.boxHelper.geometry = elt.obj.boxHelper.geometry.toNonIndexed();
  elt.obj.boxHelper.computeLineDistances();
  elt.obj.boxHelper.material = elt.childrenBitField ? new THREE.LineDashedMaterial({
    dashSize: 0.25,
    gapSize: 0.25
  }) : new THREE.LineBasicMaterial();
  elt.obj.boxHelper.material.color.setHex(0);
  elt.obj.boxHelper.material.linewidth = 2;
  elt.obj.boxHelper.frustumCulled = false;
  elt.obj.boxHelper.position.copy(elt.tightbbox.min).add(box3.max);
  elt.obj.boxHelper.autoUpdateMatrix = false;
  elt.obj.boxHelper.layers.mask = layer.bboxes.layers.mask;
  layer.bboxes.add(elt.obj.boxHelper);
  elt.obj.boxHelper.updateMatrix();
  elt.obj.boxHelper.updateMatrixWorld();
}

function computeScreenSpaceError(context, pointSize, spacing, elt, distance) {
  if (distance <= 0) {
    return Infinity;
  }

  var pointSpacing = spacing / Math.pow(2, elt.depth); // Estimate the onscreen distance between 2 points

  var onScreenSpacing = context.camera.preSSE * pointSpacing / distance; // [  P1  ]--------------[   P2   ]
  //     <--------------------->      = pointsSpacing (in world coordinates)
  //                                  ~ onScreenSpacing (in pixels)
  // <------>                         = pointSize (in pixels)

  return Math.max(0.0, onScreenSpacing - pointSize);
}

function markForDeletion(elt) {
  if (elt.obj) {
    elt.obj.visible = false;
  }

  if (!elt.notVisibleSince) {
    elt.notVisibleSince = Date.now(); // Set .sse to an invalid value

    elt.sse = -1;
  }

  var _iterator = _createForOfIteratorHelper(elt.children),
      _step;

  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var child = _step.value;
      markForDeletion(child);
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
}

function changeIntensityRange(layer) {
  if (layer.material.intensityRange) {
    layer.material.intensityRange.set(layer.minIntensityRange, layer.maxIntensityRange);
  }
}
/**
 * The basis for all point clouds related layers.
 *
 * @property {boolean} isPointCloudLayer - Used to checkout whether this layer
 * is a PointCloudLayer. Default is `true`. You should not change this, as it is
 * used internally for optimisation.
 * @property {THREE.Group|THREE.Object3D} group - Contains the created
 * `THREE.Points` meshes, usually with an instance of a `THREE.Points` per node.
 * @property {THREE.Group|THREE.Object3D} bboxes - Contains the bounding boxes
 * (`THREE.Box3`) of the tree, usually one per node.
 * @property {number} octreeDepthLimit - The depth limit at which to stop
 * browsing the octree. Can be used to limit the browsing, without having to
 * edit manually the source of the point cloud. No limit by default (`-1`).
 * @property {number} [pointBudget=2000000] - Maximum number of points to
 * display at the same time. This influences the performance of rendering.
 * Default to two millions points.
 * @property {number} [sseThreshold=2] - Threshold of the **S**creen **S**pace
 * **E**rror. Default to `2`.
 * @property {number} [pointSize=4] - The size (in pixels) of the points.
 * Default to `4`.
 * @property {THREE.Material|PointsMaterial} [material=new PointsMaterial] - The
 * material to use to display the points of the cloud. Be default it is a new
 * `PointsMaterial`.
 * @property {number} [mode=MODE.COLOR] - The displaying mode of the points.
 * Values are specified in `PointsMaterial`.
 * @property {number} [minIntensityRange=0] - The minimal intensity of the
 * layer. Changing this value will affect the material, if it has the
 * corresponding uniform. The value is normalized between 0 and 1.
 * @property {number} [maxIntensityRange=1] - The maximal intensity of the
 * layer. Changing this value will affect the material, if it has the
 * corresponding uniform. The value is normalized between 0 and 1.
 */


var PointCloudLayer = /*#__PURE__*/function (_GeometryLayer) {
  (0, _inherits2["default"])(PointCloudLayer, _GeometryLayer);

  var _super = _createSuper(PointCloudLayer);

  /**
   * Constructs a new instance of point cloud layer.
   * Constructs a new instance of a Point Cloud Layer. This should not be used
   * directly, but rather implemented using `extends`.
   *
   * @constructor
   * @extends GeometryLayer
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {Object} [config] - Optional configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name. See the list of properties to know which one can be specified.
   */
  function PointCloudLayer(id) {
    var _this;

    var config = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, PointCloudLayer);
    _this = _super.call(this, id, new THREE.Group(), config);
    _this.isPointCloudLayer = true;
    _this.protocol = 'pointcloud';
    _this.group = config.group || new THREE.Group();

    _this.object3d.add(_this.group);

    _this.bboxes = config.bboxes || new THREE.Group();
    _this.bboxes.visible = false;

    _this.object3d.add(_this.bboxes);

    _this.group.updateMatrixWorld(); // default config


    _this.octreeDepthLimit = config.octreeDepthLimit || -1;
    _this.pointBudget = config.pointBudget || 2000000;
    _this.pointSize = config.pointSize === 0 || !isNaN(config.pointSize) ? config.pointSize : 4;
    _this.sseThreshold = config.sseThreshold || 2;

    _this.defineLayerProperty('minIntensityRange', config.minIntensityRange || 0, changeIntensityRange);

    _this.defineLayerProperty('maxIntensityRange', config.maxIntensityRange || 1, changeIntensityRange);

    _this.material = config.material || {};

    if (!_this.material.isMaterial) {
      config.material = config.material || {};
      config.material.intensityRange = new THREE.Vector2(_this.minIntensityRange, _this.maxIntensityRange);
      _this.material = new _PointsMaterial["default"](config.material);
    }

    _this.material.defines = _this.material.defines || {};
    _this.mode = config.mode || _PointsMaterial.MODE.COLOR;
    return _this;
  }

  (0, _createClass2["default"])(PointCloudLayer, [{
    key: "preUpdate",
    value: function preUpdate(context, changeSources) {
      // See https://cesiumjs.org/hosted-apps/massiveworlds/downloads/Ring/WorldScaleTerrainRendering.pptx
      // slide 17
      context.camera.preSSE = context.camera.height / (2 * Math.tan(THREE.MathUtils.degToRad(context.camera.camera3D.fov) * 0.5));

      if (this.material) {
        this.material.visible = this.visible;
        this.material.opacity = this.opacity;
        this.material.transparent = this.opacity < 1;
        this.material.size = this.pointSize;

        if (this.material.updateUniforms) {
          this.material.updateUniforms();
        }
      } // lookup lowest common ancestor of changeSources


      var commonAncestor;

      var _iterator2 = _createForOfIteratorHelper(changeSources.values()),
          _step2;

      try {
        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
          var source = _step2.value;

          if (source.isCamera || source == this) {
            // if the change is caused by a camera move, no need to bother
            // to find common ancestor: we need to update the whole tree:
            // some invisible tiles may now be visible
            return [this.root];
          }

          if (source.obj === undefined) {
            continue;
          } // filter sources that belong to our layer


          if (source.obj.isPoints && source.obj.layer == this) {
            if (!commonAncestor) {
              commonAncestor = source;
            } else {
              commonAncestor = source.findCommonAncestor(commonAncestor);

              if (!commonAncestor) {
                return [this.root];
              }
            }
          }
        }
      } catch (err) {
        _iterator2.e(err);
      } finally {
        _iterator2.f();
      }

      if (commonAncestor) {
        return [commonAncestor];
      } // Start updating from hierarchy root


      return [this.root];
    }
  }, {
    key: "update",
    value: function update(context, layer, elt) {
      var _this2 = this;

      elt.visible = false;

      if (this.octreeDepthLimit >= 0 && this.octreeDepthLimit < elt.depth) {
        markForDeletion(elt);
        return;
      } // pick the best bounding box


      var bbox = elt.tightbbox ? elt.tightbbox : elt.bbox;
      elt.visible = context.camera.isBox3Visible(bbox, this.object3d.matrixWorld);

      if (!elt.visible) {
        markForDeletion(elt);
        return;
      }

      elt.notVisibleSince = undefined;
      point.copy(context.camera.camera3D.position).sub(this.object3d.position); // only load geometry if this elements has points

      if (elt.numPoints !== 0) {
        if (elt.obj) {
          elt.obj.visible = true;
        } else if (!elt.promise) {
          var distance = Math.max(0.001, bbox.distanceToPoint(point)); // Increase priority of nearest node

          var priority = computeScreenSpaceError(context, layer.pointSize, layer.spacing, elt, distance) / distance;
          elt.promise = context.scheduler.execute({
            layer: layer,
            requester: elt,
            view: context.view,
            priority: priority,
            redraw: true,
            earlyDropFunction: function earlyDropFunction(cmd) {
              return !cmd.requester.visible || !_this2.visible;
            }
          }).then(function (pts) {
            if (_this2.onPointsCreated) {
              _this2.onPointsCreated(layer, pts);
            }

            elt.obj = pts; // store tightbbox to avoid ping-pong (bbox = larger => visible, tight => invisible)

            elt.tightbbox = pts.tightbbox; // make sure to add it here, otherwise it might never
            // be added nor cleaned

            _this2.group.add(elt.obj);

            elt.obj.updateMatrixWorld(true);
            elt.promise = null;
          }, function (err) {
            if (err.isCancelledCommandException) {
              elt.promise = null;
            }
          });
        }
      }

      if (elt.children && elt.children.length) {
        var _distance = bbox.distanceToPoint(point);

        elt.sse = computeScreenSpaceError(context, layer.pointSize, layer.spacing, elt, _distance) / this.sseThreshold;

        if (elt.sse >= 1) {
          return elt.children;
        } else {
          var _iterator3 = _createForOfIteratorHelper(elt.children),
              _step3;

          try {
            for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
              var child = _step3.value;
              markForDeletion(child);
            }
          } catch (err) {
            _iterator3.e(err);
          } finally {
            _iterator3.f();
          }
        }
      }
    }
  }, {
    key: "postUpdate",
    value: function postUpdate() {
      this.displayedCount = 0;

      var _iterator4 = _createForOfIteratorHelper(this.group.children),
          _step4;

      try {
        for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
          var _pts2 = _step4.value;

          if (_pts2.visible) {
            var _count2 = _pts2.geometry.attributes.position.count;

            _pts2.geometry.setDrawRange(0, _count2);

            this.displayedCount += _count2;
          }
        }
      } catch (err) {
        _iterator4.e(err);
      } finally {
        _iterator4.f();
      }

      if (this.displayedCount > this.pointBudget) {
        // 2 different point count limit implementation, depending on the potree source
        if (this.supportsProgressiveDisplay) {
          // In this format, points are evenly distributed within a node,
          // so we can draw a percentage of each node and still get a correct
          // representation
          var reduction = this.pointBudget / this.displayedCount;

          var _iterator5 = _createForOfIteratorHelper(this.group.children),
              _step5;

          try {
            for (_iterator5.s(); !(_step5 = _iterator5.n()).done;) {
              var pts = _step5.value;

              if (pts.visible) {
                var count = Math.floor(pts.geometry.drawRange.count * reduction);

                if (count > 0) {
                  pts.geometry.setDrawRange(0, count);
                } else {
                  pts.visible = false;
                }
              }
            }
          } catch (err) {
            _iterator5.e(err);
          } finally {
            _iterator5.f();
          }

          this.displayedCount *= reduction;
        } else {
          // This format doesn't require points to be evenly distributed, so
          // we're going to sort the nodes by "importance" (= on screen size)
          // and display only the first N nodes
          this.group.children.sort(function (p1, p2) {
            return p2.userData.node.sse - p1.userData.node.sse;
          });
          var limitHit = false;
          this.displayedCount = 0;

          var _iterator6 = _createForOfIteratorHelper(this.group.children),
              _step6;

          try {
            for (_iterator6.s(); !(_step6 = _iterator6.n()).done;) {
              var _pts = _step6.value;
              var _count = _pts.geometry.attributes.position.count;

              if (limitHit || this.displayedCount + _count > this.pointBudget) {
                _pts.visible = false;
                limitHit = true;
              } else {
                this.displayedCount += _count;
              }
            }
          } catch (err) {
            _iterator6.e(err);
          } finally {
            _iterator6.f();
          }
        }
      }

      var now = Date.now();

      for (var i = this.group.children.length - 1; i >= 0; i--) {
        var obj = this.group.children[i];

        if (!obj.visible && now - obj.userData.node.notVisibleSince > 10000) {
          // remove from group
          this.group.children.splice(i, 1); // no need to dispose obj.material, as it is shared by all objects of this layer

          obj.geometry.dispose();
          obj.material = null;
          obj.geometry = null;
          obj.userData.node.obj = null;
        }
      }
    }
  }, {
    key: "pickObjectsAt",
    value: function pickObjectsAt(view, mouse, radius) {
      var target = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : [];
      return _Picking["default"].pickPointsAt(view, mouse, radius, this, target);
    }
  }, {
    key: "getObjectToUpdateForAttachedLayers",
    value: function getObjectToUpdateForAttachedLayers(meta) {
      if (meta.obj) {
        var p = meta.parent;

        if (p && p.obj) {
          return {
            element: meta.obj,
            parent: p.obj
          };
        } else {
          return {
            element: meta.obj
          };
        }
      }
    }
  }]);
  return PointCloudLayer;
}(_GeometryLayer2["default"]);

var _default = PointCloudLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/PotreeLayer.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/PotreeLayer.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _PointCloudLayer2 = _interopRequireDefault(__webpack_require__(/*! ./PointCloudLayer */ "./node_modules/itowns/lib/Layer/PointCloudLayer.js"));

var _PotreeNode = _interopRequireDefault(__webpack_require__(/*! ../Core/PotreeNode */ "./node_modules/itowns/lib/Core/PotreeNode.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var bboxMesh = new THREE.Mesh();
var box3 = new THREE.Box3();
bboxMesh.geometry.boundingBox = box3;
/**
 * @property {boolean} isPotreeLayer - Used to checkout whether this layer
 * is a PotreeLayer. Default is `true`. You should not change this, as it is
 * used internally for optimisation.
 */

var PotreeLayer = /*#__PURE__*/function (_PointCloudLayer) {
  (0, _inherits2["default"])(PotreeLayer, _PointCloudLayer);

  var _super = _createSuper(PotreeLayer);

  /**
   * Constructs a new instance of Potree layer.
   *
   * @constructor
   * @extends PointCloudLayer
   *
   * @example
   * // Create a new point cloud layer
   * const points = new PotreeLayer('points',
   *  {
   *      source: new PotreeLayer({
   *          url: 'https://pointsClouds/',
   *          file: 'points.js',
   *      }
   *  });
   *
   * View.prototype.addLayer.call(view, points);
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {Object} config - Configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name. See the list of properties to know which one can be specified.
   * @param {string} [config.crs=ESPG:4326] - The CRS of the {@link View} this
   * layer will be attached to. This is used to determine the extent of this
   * layer.  Default to `EPSG:4326`.
   */
  function PotreeLayer(id, config) {
    var _this;

    (0, _classCallCheck2["default"])(this, PotreeLayer);
    _this = _super.call(this, id, config);
    _this.isPotreeLayer = true;

    var resolve = _this.addInitializationStep();

    _this.source.whenReady.then(function (cloud) {
      _this.scale = new THREE.Vector3().addScalar(cloud.scale);
      _this.spacing = cloud.spacing;
      _this.hierarchyStepSize = cloud.hierarchyStepSize;
      var normal = Array.isArray(cloud.pointAttributes) && cloud.pointAttributes.find(function (elem) {
        return elem.startsWith('NORMAL');
      });

      if (normal) {
        _this.material.defines[normal] = 1;
      }

      _this.supportsProgressiveDisplay = _this.source.extension === 'cin';
      _this.root = new _PotreeNode["default"](0, 0, (0, _assertThisInitialized2["default"])(_this));

      _this.root.bbox.min.set(cloud.boundingBox.lx, cloud.boundingBox.ly, cloud.boundingBox.lz);

      _this.root.bbox.max.set(cloud.boundingBox.ux, cloud.boundingBox.uy, cloud.boundingBox.uz);

      _this.extent = _Extent["default"].fromBox3(_this.source.crs || 'EPSG:4326', _this.root.bbox);
      return _this.root.loadOctree().then(resolve);
    });

    return _this;
  }

  return (0, _createClass2["default"])(PotreeLayer);
}(_PointCloudLayer2["default"]);

var _default = PotreeLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/RasterLayer.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/RasterLayer.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Layer2 = _interopRequireDefault(__webpack_require__(/*! ./Layer */ "./node_modules/itowns/lib/Layer/Layer.js"));

var _LayeredMaterialNodeProcessing = __webpack_require__(/*! ../Process/LayeredMaterialNodeProcessing */ "./node_modules/itowns/lib/Process/LayeredMaterialNodeProcessing.js");

var _textureConverter = _interopRequireDefault(__webpack_require__(/*! ../Converter/textureConverter */ "./node_modules/itowns/lib/Converter/textureConverter.js"));

var _Cache = __webpack_require__(/*! ../Core/Scheduler/Cache */ "./node_modules/itowns/lib/Core/Scheduler/Cache.js");

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var RasterLayer = /*#__PURE__*/function (_Layer) {
  (0, _inherits2["default"])(RasterLayer, _Layer);

  var _super = _createSuper(RasterLayer);

  function RasterLayer(id, config) {
    var _config$cacheLifeTime;

    (0, _classCallCheck2["default"])(this, RasterLayer);
    config.cacheLifeTime = (_config$cacheLifeTime = config.cacheLifeTime) !== null && _config$cacheLifeTime !== void 0 ? _config$cacheLifeTime : _Cache.CACHE_POLICIES.TEXTURE;
    return _super.call(this, id, config);
  }

  (0, _createClass2["default"])(RasterLayer, [{
    key: "convert",
    value: function convert(data, extentDestination) {
      return _textureConverter["default"].convert(data, extentDestination, this);
    }
    /**
    * All layer's textures are removed from scene and disposed from video device.
    */

  }, {
    key: "delete",
    value: function _delete() {
      var _iterator = _createForOfIteratorHelper(this.parent.level0Nodes),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var root = _step.value;
          root.traverse((0, _LayeredMaterialNodeProcessing.removeLayeredMaterialNodeLayer)(this.id));
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }
    }
  }]);
  return RasterLayer;
}(_Layer2["default"]);

var _default = RasterLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/ReferencingLayerProperties.js":
/*!*********************************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/ReferencingLayerProperties.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

// next step is move these properties to Style class
// and hide transparent mechanism
function ReferLayerProperties(material, layer) {
  if (layer && layer.isGeometryLayer) {
    var transparent = material.transparent;
    material.layer = layer;

    if (material.uniforms && material.uniforms.opacity != undefined) {
      Object.defineProperty(material.uniforms.opacity, 'value', {
        get: function get() {
          return material.layer.opacity;
        }
      });
    } else if (material.opacity != undefined) {
      Object.defineProperty(material, 'opacity', {
        get: function get() {
          return material.layer.opacity;
        }
      });
    }

    Object.defineProperty(material, 'wireframe', {
      get: function get() {
        return material.layer.wireframe;
      }
    });
    Object.defineProperty(material, 'transparent', {
      get: function get() {
        if (transparent != material.layer.opacity < 1.0) {
          material.needsUpdate = true;
          transparent = material.layer.opacity < 1.0;
        }

        return transparent;
      }
    });
  }

  return material;
}

var _default = ReferLayerProperties;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Layer/TiledGeometryLayer.js":
/*!*************************************************************!*\
  !*** ./node_modules/itowns/lib/Layer/TiledGeometryLayer.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _toConsumableArray2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/toConsumableArray */ "./node_modules/@babel/runtime/helpers/toConsumableArray.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _GeometryLayer2 = _interopRequireDefault(__webpack_require__(/*! ./GeometryLayer */ "./node_modules/itowns/lib/Layer/GeometryLayer.js"));

var _InfoLayer = __webpack_require__(/*! ./InfoLayer */ "./node_modules/itowns/lib/Layer/InfoLayer.js");

var _Picking = _interopRequireDefault(__webpack_require__(/*! ../Core/Picking */ "./node_modules/itowns/lib/Core/Picking.js"));

var _convertToTile = _interopRequireDefault(__webpack_require__(/*! ../Converter/convertToTile */ "./node_modules/itowns/lib/Converter/convertToTile.js"));

var _ObjectRemovalHelper = _interopRequireDefault(__webpack_require__(/*! ../Process/ObjectRemovalHelper */ "./node_modules/itowns/lib/Process/ObjectRemovalHelper.js"));

var _LayeredMaterialNodeProcessing = __webpack_require__(/*! ../Process/LayeredMaterialNodeProcessing */ "./node_modules/itowns/lib/Process/LayeredMaterialNodeProcessing.js");

var _Layer = __webpack_require__(/*! ./Layer */ "./node_modules/itowns/lib/Layer/Layer.js");

var _Cache = __webpack_require__(/*! ../Core/Scheduler/Cache */ "./node_modules/itowns/lib/Core/Scheduler/Cache.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var subdivisionVector = new THREE.Vector3();
var boundingSphereCenter = new THREE.Vector3();
/**
 * @property {InfoTiledGeometryLayer} info - Status information of layer
 * @property {boolean} isTiledGeometryLayer - Used to checkout whether this
 * layer is a TiledGeometryLayer. Default is true. You should not change this,
 * as it is used internally for optimisation.
 *
 */

var TiledGeometryLayer = /*#__PURE__*/function (_GeometryLayer) {
  (0, _inherits2["default"])(TiledGeometryLayer, _GeometryLayer);

  var _super = _createSuper(TiledGeometryLayer);

  /**
   * A layer extending the {@link GeometryLayer}, but with a tiling notion.
   *
   * `TiledGeometryLayer` is the ground where `ColorLayer` and `ElevationLayer` are attached.
   * `TiledGeometryLayer` is a quadtree data structure. At zoom 0,
   * there is a single tile for the whole earth. At zoom level 1,
   * the single tile splits into 4 tiles (2x2 tile square).
   * Each zoom level quadtree divides the geometry tiles of the one before it.
   * The camera distance determines how the tiles are subdivided for optimal data display.
   *
   * Some `GeometryLayer` can also be attached to the `TiledGeometryLayer` if they want to take advantage of the quadtree.
   *
   * ![tiled geometry](/docs/static/images/tiledGeometry.jpeg)
   * _In `GlobeView`, **red lines** represents the **WGS84 grid** and **orange lines** the **Pseudo-mercator grid**._
   * _In this picture, there are tiles with 3 different zoom/levels._
   *
   * The zoom/level is based on [tiled web map](https://en.wikipedia.org/wiki/Tiled_web_map).
   * It corresponds at meters by pixel. If the projection tile exceeds a certain pixel size (on screen)
   * then it is subdivided into 4 tiles with a zoom greater than 1.
   *
   * @constructor
   * @extends GeometryLayer
   *
   * @param {string} id - The id of the layer, that should be unique. It is
   * not mandatory, but an error will be emitted if this layer is added a
   * {@link View} that already has a layer going by that id.
   * @param {THREE.Object3d} object3d - The object3d used to contain the
   * geometry of the TiledGeometryLayer. It is usually a `THREE.Group`, but it
   * can be anything inheriting from a `THREE.Object3d`.
   * @param {Array} schemeTile - extents Array of root tiles
   * @param {Object} builder - builder geometry object
   * @param {Object} [config] - Optional configuration, all elements in it
   * will be merged as is in the layer. For example, if the configuration
   * contains three elements `name, protocol, extent`, these elements will be
   * available using `layer.name` or something else depending on the property
   * name.
   * @param {Source} [config.source] - Description and options of the source.
   *
   * @throws {Error} `object3d` must be a valid `THREE.Object3d`.
   */
  function TiledGeometryLayer(id, object3d, schemeTile, builder, config) {
    var _this;

    (0, _classCallCheck2["default"])(this, TiledGeometryLayer);
    // cacheLifeTime = CACHE_POLICIES.INFINITE because the cache is handled by the builder
    config.cacheLifeTime = _Cache.CACHE_POLICIES.INFINITE;
    config.source = false;
    _this = _super.call(this, id, object3d, config);
    _this.isTiledGeometryLayer = true; // TODO : this should be add in a preprocess method specific to GeoidLayer.

    _this.object3d.geoidHeight = 0;
    _this.protocol = 'tile';
    _this.sseSubdivisionThreshold = _this.sseSubdivisionThreshold || 1.0;
    _this.schemeTile = schemeTile;
    _this.builder = builder;
    _this.info = new _InfoLayer.InfoTiledGeometryLayer((0, _assertThisInitialized2["default"])(_this));

    if (!_this.schemeTile) {
      throw new Error("Cannot init tiled layer without schemeTile for layer ".concat(_this.id));
    }

    if (!_this.builder) {
      throw new Error("Cannot init tiled layer without builder for layer ".concat(_this.id));
    }

    _this.level0Nodes = [];
    var promises = [];

    var _iterator = _createForOfIteratorHelper(_this.schemeTile),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var root = _step.value;
        promises.push(_this.convert(undefined, root));
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }

    _this._promises.push(Promise.all(promises).then(function (level0s) {
      var _this$object3d;

      _this.level0Nodes = level0s;

      (_this$object3d = _this.object3d).add.apply(_this$object3d, (0, _toConsumableArray2["default"])(level0s));

      _this.object3d.updateMatrixWorld();
    }));

    return _this;
  }
  /**
   * Picking method for this layer. It uses the {@link Picking#pickTilesAt}
   * method.
   *
   * @param {View} view - The view instance.
   * @param {Object} coordinates - The coordinates to pick in the view. It
   * should have at least `x` and `y` properties.
   * @param {number} radius - Radius of the picking circle.
   * @param {Array} target - Array to push picking result.
   *
   * @return {Array} An array containing all targets picked under the
   * specified coordinates.
   */


  (0, _createClass2["default"])(TiledGeometryLayer, [{
    key: "pickObjectsAt",
    value: function pickObjectsAt(view, coordinates) {
      var radius = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.options.defaultPickingRadius;
      var target = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : [];
      return _Picking["default"].pickTilesAt(view, coordinates, radius, this, target);
    }
    /**
     * Does pre-update work on the context:
     * <ul>
     *  <li>update the `colorLayers` and `elevationLayers`</li>
     *  <li>update the `maxElevationLevel`</li>
     * </ul>
     *
     * Once this work is done, it returns a list of nodes to update. Depending
     * on the origin of `sources`, it can return a few things:
     * <ul>
     *  <li>if `sources` is empty, it returns the first node of the layer
     *  (stored as `level0Nodes`), which will trigger the update of the whole
     *  tree</li>
     *  <li>if the update is triggered by a camera move, the whole tree is
     *  returned too</li>
     *  <li>if `source.layer` is this layer, it means that `source` is a node; a
     *  common ancestor will be found if there are multiple sources, with the
     *  default common ancestor being the first source itself</li>
     *  <li>else it returns the whole tree</li>
     * </ul>
     *
     * @param {Object} context - The context of the update; see the {@link
     * MainLoop} for more informations.
     * @param {Set<GeometryLayer|TileMesh>} sources - A list of sources to
     * generate a list of nodes to update.
     *
     * @return {TileMesh[]} The array of nodes to update.
     */

  }, {
    key: "preUpdate",
    value: function preUpdate(context, sources) {
      var _this2 = this;

      if (sources.has(undefined) || sources.size == 0) {
        return this.level0Nodes;
      }

      context.colorLayers = context.view.getLayers(function (l, a) {
        return a && a.id == _this2.id && l.isColorLayer;
      });
      context.elevationLayers = context.view.getLayers(function (l, a) {
        return a && a.id == _this2.id && l.isElevationLayer;
      });
      context.maxElevationLevel = -1;

      var _iterator2 = _createForOfIteratorHelper(context.elevationLayers),
          _step2;

      try {
        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
          var e = _step2.value;
          context.maxElevationLevel = Math.max(e.source.zoom.max, context.maxElevationLevel);
        }
      } catch (err) {
        _iterator2.e(err);
      } finally {
        _iterator2.f();
      }

      if (context.maxElevationLevel == -1) {
        context.maxElevationLevel = Infinity;
      } // Prepare ColorLayer sequence order
      // In this moment, there is only one color layers sequence, because they are attached to tileLayer.
      // In future, the sequence must be returned by parent geometry layer.


      this.colorLayersOrder = _Layer.ImageryLayers.getColorLayersIdOrderedBySequence(context.colorLayers);
      var commonAncestor;

      var _iterator3 = _createForOfIteratorHelper(sources.values()),
          _step3;

      try {
        for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
          var source = _step3.value;

          if (source.isCamera) {
            // if the change is caused by a camera move, no need to bother
            // to find common ancestor: we need to update the whole tree:
            // some invisible tiles may now be visible
            return this.level0Nodes;
          }

          if (source.layer === this) {
            if (!commonAncestor) {
              commonAncestor = source;
            } else {
              commonAncestor = source.findCommonAncestor(commonAncestor);

              if (!commonAncestor) {
                return this.level0Nodes;
              }
            }

            if (commonAncestor.material == null) {
              commonAncestor = undefined;
            }
          }
        }
      } catch (err) {
        _iterator3.e(err);
      } finally {
        _iterator3.f();
      }

      if (commonAncestor) {
        return [commonAncestor];
      } else {
        return this.level0Nodes;
      }
    }
    /**
     * Update a node of this layer. The node will not be updated if:
     * <ul>
     *  <li>it does not have a parent, then it is removed</li>
     *  <li>its parent is being subdivided</li>
     *  <li>is not visible in the camera</li>
     * </ul>
     *
     * @param {Object} context - The context of the update; see the {@link
     * MainLoop} for more informations.
     * @param {Layer} layer - Parameter to be removed once all update methods
     * have been aligned.
     * @param {TileMesh} node - The node to update.
     *
     * @returns {Object}
     */

  }, {
    key: "update",
    value: function update(context, layer, node) {
      var _this3 = this;

      if (!node.parent) {
        return _ObjectRemovalHelper["default"].removeChildrenAndCleanup(this, node);
      } // early exit if parent' subdivision is in progress


      if (node.parent.pendingSubdivision) {
        node.visible = false;
        node.material.visible = false;
        this.info.update(node);
        return undefined;
      } // do proper culling


      node.visible = !this.culling(node, context.camera);

      if (node.visible) {
        var requestChildrenUpdate = false;
        node.material.visible = true;
        this.info.update(node);

        if (node.pendingSubdivision || TiledGeometryLayer.hasEnoughTexturesToSubdivide(context, node) && this.subdivision(context, this, node)) {
          this.subdivideNode(context, node); // display iff children aren't ready

          node.material.visible = node.pendingSubdivision;
          this.info.update(node);
          requestChildrenUpdate = true;
        }

        if (node.material.visible) {
          if (!requestChildrenUpdate) {
            return _ObjectRemovalHelper["default"].removeChildren(this, node);
          }
        }

        return requestChildrenUpdate ? node.children.filter(function (n) {
          return n.layer == _this3;
        }) : undefined;
      }

      node.material.visible = false;
      this.info.update(node);
      return _ObjectRemovalHelper["default"].removeChildren(this, node);
    }
  }, {
    key: "convert",
    value: function convert(requester, extent) {
      return _convertToTile["default"].convert(requester, extent, this);
    }
  }, {
    key: "countColorLayersTextures",
    value: function countColorLayersTextures() {
      return arguments.length;
    } // eslint-disable-next-line

  }, {
    key: "culling",
    value: function culling(node, camera) {
      return !camera.isBox3Visible(node.obb.box3D, node.obb.matrixWorld);
    }
    /**
     * Tell if a node has enough elevation or color textures to subdivide.
     * Subdivision is prevented if:
     * <ul>
     *  <li>the node is covered by at least one elevation layer and if the node
     *  doesn't have an elevation texture yet</li>
     *  <li>a color texture is missing</li>
     * </ul>
     *
     * @param {Object} context - The context of the update; see the {@link
     * MainLoop} for more informations.
     * @param {TileMesh} node - The node to subdivide.
     *
     * @returns {boolean} False if the node can not be subdivided, true
     * otherwise.
     */

  }, {
    key: "subdivideNode",
    value:
    /**
     * Subdivides a node of this layer. If the node is currently in the process
     * of subdivision, it will not do anything here. The subdivision of a node
     * will occur in four part, to create a quadtree. The extent of the node
     * will be divided in four parts: north-west, north-east, south-west and
     * south-east. Once all four nodes are created, they will be added to the
     * current node and the view of the context will be notified of this change.
     *
     * @param {Object} context - The context of the update; see the {@link
     * MainLoop} for more informations.
     * @param {TileMesh} node - The node to subdivide.
     * @return {Promise}  { description_of_the_return_value }
     */
    function subdivideNode(context, node) {
      var _this4 = this;

      if (!node.pendingSubdivision && !node.children.some(function (n) {
        return n.layer == _this4;
      })) {
        var extents = node.extent.subdivision(); // TODO: pendingSubdivision mechanism is fragile, get rid of it

        node.pendingSubdivision = true;
        var command = {
          /* mandatory */
          view: context.view,
          requester: node,
          layer: this,
          priority: 10000,

          /* specific params */
          extentsSource: extents,
          redraw: false
        };
        return context.scheduler.execute(command).then(function (children) {
          var _iterator4 = _createForOfIteratorHelper(children),
              _step4;

          try {
            for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
              var child = _step4.value;
              node.add(child);
              child.updateMatrixWorld(true);
            }
          } catch (err) {
            _iterator4.e(err);
          } finally {
            _iterator4.f();
          }

          node.pendingSubdivision = false;
          context.view.notifyChange(node, false);
        }, function (err) {
          node.pendingSubdivision = false;

          if (!err.isCancelledCommandException) {
            throw new Error(err);
          }
        });
      }
    }
    /**
     * Test the subdvision of a node, compared to this layer.
     *
     * @param {Object} context - The context of the update; see the {@link
     * MainLoop} for more informations.
     * @param {PlanarLayer} layer - This layer, parameter to be removed.
     * @param {TileMesh} node - The node to test.
     *
     * @return {boolean} - True if the node is subdivisable, otherwise false.
     */

  }, {
    key: "subdivision",
    value: function subdivision(context, layer, node) {
      if (node.level < this.minSubdivisionLevel) {
        return true;
      }

      if (this.maxSubdivisionLevel <= node.level) {
        return false;
      } // Prevent to subdivise the node if the current elevation level
      // we must avoid a tile, with level 20, inherits a level 3 elevation texture.
      // The induced geometric error is much too large and distorts the SSE


      var nodeLayer = node.material.getElevationLayer();

      if (nodeLayer) {
        var currentTexture = nodeLayer.textures[0];

        if (currentTexture && currentTexture.extent) {
          var offsetScale = nodeLayer.offsetScales[0];
          var ratio = offsetScale.z; // ratio is node size / texture size

          if (ratio < 1 / Math.pow(2, this.maxDeltaElevationLevel)) {
            return false;
          }
        }
      }

      subdivisionVector.setFromMatrixScale(node.matrixWorld);
      boundingSphereCenter.copy(node.boundingSphere.center).applyMatrix4(node.matrixWorld);
      var distance = Math.max(0.0, context.camera.camera3D.position.distanceTo(boundingSphereCenter) - node.boundingSphere.radius * subdivisionVector.x); // Size projection on pixel of bounding

      if (context.camera.camera3D.isOrthographicCamera) {
        var camera3D = context.camera.camera3D;
        var preSSE = context.camera._preSSE * 2 * camera3D.zoom / (camera3D.top - camera3D.bottom);
        node.screenSize = preSSE * node.boundingSphere.radius * subdivisionVector.x;
      } else {
        node.screenSize = context.camera._preSSE * (2 * node.boundingSphere.radius * subdivisionVector.x) / distance;
      } // The screen space error is calculated to have a correct texture display.
      // For the projection of a texture's texel to be less than or equal to one pixel


      var sse = node.screenSize / (_LayeredMaterialNodeProcessing.SIZE_DIAGONAL_TEXTURE * 2);
      return this.sseSubdivisionThreshold < sse;
    }
  }], [{
    key: "hasEnoughTexturesToSubdivide",
    value: function hasEnoughTexturesToSubdivide(context, node) {
      var layerUpdateState = node.layerUpdateState || {};
      var nodeLayer = node.material.getElevationLayer();

      var _iterator5 = _createForOfIteratorHelper(context.elevationLayers),
          _step5;

      try {
        for (_iterator5.s(); !(_step5 = _iterator5.n()).done;) {
          var e = _step5.value;
          var extents = node.getExtentsByProjection(e.crs);
          var zoom = extents[0].zoom;

          if (zoom > e.zoom.max || zoom < e.zoom.min) {
            continue;
          }

          if (!e.frozen && e.ready && e.source.extentInsideLimit(node.extent, zoom) && (!nodeLayer || nodeLayer.level < 0)) {
            // no stop subdivision in the case of a loading error
            if (layerUpdateState[e.id] && layerUpdateState[e.id].inError()) {
              continue;
            }

            return false;
          }
        }
      } catch (err) {
        _iterator5.e(err);
      } finally {
        _iterator5.f();
      }

      var _iterator6 = _createForOfIteratorHelper(context.colorLayers),
          _step6;

      try {
        for (_iterator6.s(); !(_step6 = _iterator6.n()).done;) {
          var c = _step6.value;

          if (c.frozen || !c.visible || !c.ready) {
            continue;
          }

          var _extents = node.getExtentsByProjection(c.crs);

          var _zoom = _extents[0].zoom;

          if (_zoom > c.zoom.max || _zoom < c.zoom.min) {
            continue;
          } // no stop subdivision in the case of a loading error


          if (layerUpdateState[c.id] && layerUpdateState[c.id].inError()) {
            continue;
          }

          nodeLayer = node.material.getLayer(c.id);

          if (c.source.extentInsideLimit(node.extent, _zoom) && (!nodeLayer || nodeLayer.level < 0)) {
            return false;
          }
        }
      } catch (err) {
        _iterator6.e(err);
      } finally {
        _iterator6.f();
      }

      return true;
    }
  }]);
  return TiledGeometryLayer;
}(_GeometryLayer2["default"]);

var _default = TiledGeometryLayer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Main.js":
/*!*****************************************!*\
  !*** ./node_modules/itowns/lib/Main.js ***!
  \*****************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
Object.defineProperty(exports, "$3dTilesCulling", ({
  enumerable: true,
  get: function get() {
    return _dTilesProcessing.$3dTilesCulling;
  }
}));
Object.defineProperty(exports, "$3dTilesSubdivisionControl", ({
  enumerable: true,
  get: function get() {
    return _dTilesProcessing.$3dTilesSubdivisionControl;
  }
}));
Object.defineProperty(exports, "C3DTBatchTable", ({
  enumerable: true,
  get: function get() {
    return _C3DTBatchTable["default"];
  }
}));
Object.defineProperty(exports, "C3DTBatchTableHierarchyExtension", ({
  enumerable: true,
  get: function get() {
    return _C3DTBatchTableHierarchyExtension["default"];
  }
}));
Object.defineProperty(exports, "C3DTBoundingVolume", ({
  enumerable: true,
  get: function get() {
    return _C3DTBoundingVolume["default"];
  }
}));
Object.defineProperty(exports, "C3DTExtensions", ({
  enumerable: true,
  get: function get() {
    return _C3DTExtensions["default"];
  }
}));
Object.defineProperty(exports, "C3DTilesLayer", ({
  enumerable: true,
  get: function get() {
    return _C3DTilesLayer["default"];
  }
}));
Object.defineProperty(exports, "C3DTilesSource", ({
  enumerable: true,
  get: function get() {
    return _C3DTilesSource["default"];
  }
}));
Object.defineProperty(exports, "C3DTilesTypes", ({
  enumerable: true,
  get: function get() {
    return _C3DTilesTypes["default"];
  }
}));
Object.defineProperty(exports, "C3DTileset", ({
  enumerable: true,
  get: function get() {
    return _C3DTileset["default"];
  }
}));
Object.defineProperty(exports, "CAMERA_TYPE", ({
  enumerable: true,
  get: function get() {
    return _Camera.CAMERA_TYPE;
  }
}));
Object.defineProperty(exports, "CONTROL_EVENTS", ({
  enumerable: true,
  get: function get() {
    return _GlobeControls.CONTROL_EVENTS;
  }
}));
Object.defineProperty(exports, "CRS", ({
  enumerable: true,
  get: function get() {
    return _Crs["default"];
  }
}));
Object.defineProperty(exports, "CameraCalibrationParser", ({
  enumerable: true,
  get: function get() {
    return _CameraCalibrationParser["default"];
  }
}));
Object.defineProperty(exports, "CameraUtils", ({
  enumerable: true,
  get: function get() {
    return _CameraUtils["default"];
  }
}));
Object.defineProperty(exports, "Capabilities", ({
  enumerable: true,
  get: function get() {
    return _Capabilities["default"];
  }
}));
Object.defineProperty(exports, "ColorLayer", ({
  enumerable: true,
  get: function get() {
    return _ColorLayer["default"];
  }
}));
Object.defineProperty(exports, "ColorLayersOrdering", ({
  enumerable: true,
  get: function get() {
    return _ColorLayersOrdering["default"];
  }
}));
Object.defineProperty(exports, "Coordinates", ({
  enumerable: true,
  get: function get() {
    return _Coordinates["default"];
  }
}));
Object.defineProperty(exports, "DEMUtils", ({
  enumerable: true,
  get: function get() {
    return _DEMUtils["default"];
  }
}));
Object.defineProperty(exports, "ElevationLayer", ({
  enumerable: true,
  get: function get() {
    return _ElevationLayer["default"];
  }
}));
Object.defineProperty(exports, "Ellipsoid", ({
  enumerable: true,
  get: function get() {
    return _Ellipsoid["default"];
  }
}));
Object.defineProperty(exports, "EntwinePointTileLayer", ({
  enumerable: true,
  get: function get() {
    return _EntwinePointTileLayer["default"];
  }
}));
Object.defineProperty(exports, "EntwinePointTileSource", ({
  enumerable: true,
  get: function get() {
    return _EntwinePointTileSource["default"];
  }
}));
Object.defineProperty(exports, "Extent", ({
  enumerable: true,
  get: function get() {
    return _Extent["default"];
  }
}));
Object.defineProperty(exports, "FEATURE_TYPES", ({
  enumerable: true,
  get: function get() {
    return _Feature.FEATURE_TYPES;
  }
}));
Object.defineProperty(exports, "Feature", ({
  enumerable: true,
  get: function get() {
    return _Feature["default"];
  }
}));
Object.defineProperty(exports, "Feature2Mesh", ({
  enumerable: true,
  get: function get() {
    return _Feature2Mesh["default"];
  }
}));
Object.defineProperty(exports, "FeatureCollection", ({
  enumerable: true,
  get: function get() {
    return _Feature.FeatureCollection;
  }
}));
Object.defineProperty(exports, "FeatureGeometry", ({
  enumerable: true,
  get: function get() {
    return _Feature.FeatureGeometry;
  }
}));
Object.defineProperty(exports, "FeatureGeometryLayer", ({
  enumerable: true,
  get: function get() {
    return _FeatureGeometryLayer["default"];
  }
}));
Object.defineProperty(exports, "FeatureProcessing", ({
  enumerable: true,
  get: function get() {
    return _FeatureProcessing["default"];
  }
}));
Object.defineProperty(exports, "FeaturesUtils", ({
  enumerable: true,
  get: function get() {
    return _FeaturesUtils["default"];
  }
}));
Object.defineProperty(exports, "Fetcher", ({
  enumerable: true,
  get: function get() {
    return _Fetcher["default"];
  }
}));
Object.defineProperty(exports, "FileSource", ({
  enumerable: true,
  get: function get() {
    return _FileSource["default"];
  }
}));
Object.defineProperty(exports, "FirstPersonControls", ({
  enumerable: true,
  get: function get() {
    return _FirstPersonControls["default"];
  }
}));
Object.defineProperty(exports, "FlyControls", ({
  enumerable: true,
  get: function get() {
    return _FlyControls["default"];
  }
}));
Object.defineProperty(exports, "GDFParser", ({
  enumerable: true,
  get: function get() {
    return _GDFParser["default"];
  }
}));
Object.defineProperty(exports, "GLOBE_VIEW_EVENTS", ({
  enumerable: true,
  get: function get() {
    return _GlobeView.GLOBE_VIEW_EVENTS;
  }
}));
Object.defineProperty(exports, "GTXParser", ({
  enumerable: true,
  get: function get() {
    return _GTXParser["default"];
  }
}));
Object.defineProperty(exports, "GeoJsonParser", ({
  enumerable: true,
  get: function get() {
    return _GeoJsonParser["default"];
  }
}));
Object.defineProperty(exports, "GeoidGrid", ({
  enumerable: true,
  get: function get() {
    return _GeoidGrid["default"];
  }
}));
Object.defineProperty(exports, "GeoidLayer", ({
  enumerable: true,
  get: function get() {
    return _GeoidLayer["default"];
  }
}));
Object.defineProperty(exports, "GeometryLayer", ({
  enumerable: true,
  get: function get() {
    return _GeometryLayer["default"];
  }
}));
Object.defineProperty(exports, "GlobeControls", ({
  enumerable: true,
  get: function get() {
    return _GlobeControls["default"];
  }
}));
Object.defineProperty(exports, "GlobeLayer", ({
  enumerable: true,
  get: function get() {
    return _GlobeLayer["default"];
  }
}));
Object.defineProperty(exports, "GlobeView", ({
  enumerable: true,
  get: function get() {
    return _GlobeView["default"];
  }
}));
Object.defineProperty(exports, "GpxParser", ({
  enumerable: true,
  get: function get() {
    return _GpxParser["default"];
  }
}));
Object.defineProperty(exports, "ISGParser", ({
  enumerable: true,
  get: function get() {
    return _ISGParser["default"];
  }
}));
Object.defineProperty(exports, "ImageryLayers", ({
  enumerable: true,
  get: function get() {
    return _Layer.ImageryLayers;
  }
}));
Object.defineProperty(exports, "KMLParser", ({
  enumerable: true,
  get: function get() {
    return _KMLParser["default"];
  }
}));
Object.defineProperty(exports, "LASParser", ({
  enumerable: true,
  get: function get() {
    return _LASParser["default"];
  }
}));
Object.defineProperty(exports, "Label", ({
  enumerable: true,
  get: function get() {
    return _Label["default"];
  }
}));
Object.defineProperty(exports, "LabelLayer", ({
  enumerable: true,
  get: function get() {
    return _LabelLayer["default"];
  }
}));
Object.defineProperty(exports, "Layer", ({
  enumerable: true,
  get: function get() {
    return _Layer["default"];
  }
}));
Object.defineProperty(exports, "MAIN_LOOP_EVENTS", ({
  enumerable: true,
  get: function get() {
    return _MainLoop.MAIN_LOOP_EVENTS;
  }
}));
Object.defineProperty(exports, "OrientationUtils", ({
  enumerable: true,
  get: function get() {
    return _OrientationUtils["default"];
  }
}));
Object.defineProperty(exports, "OrientedImageCamera", ({
  enumerable: true,
  get: function get() {
    return _OrientedImageCamera["default"];
  }
}));
Object.defineProperty(exports, "OrientedImageLayer", ({
  enumerable: true,
  get: function get() {
    return _OrientedImageLayer["default"];
  }
}));
Object.defineProperty(exports, "OrientedImageSource", ({
  enumerable: true,
  get: function get() {
    return _OrientedImageSource["default"];
  }
}));
Object.defineProperty(exports, "PLANAR_CONTROL_EVENT", ({
  enumerable: true,
  get: function get() {
    return _PlanarControls.PLANAR_CONTROL_EVENT;
  }
}));
Object.defineProperty(exports, "PlanarControls", ({
  enumerable: true,
  get: function get() {
    return _PlanarControls["default"];
  }
}));
Object.defineProperty(exports, "PlanarLayer", ({
  enumerable: true,
  get: function get() {
    return _PlanarLayer["default"];
  }
}));
Object.defineProperty(exports, "PlanarView", ({
  enumerable: true,
  get: function get() {
    return _PlanarView["default"];
  }
}));
Object.defineProperty(exports, "PointCloudLayer", ({
  enumerable: true,
  get: function get() {
    return _PointCloudLayer["default"];
  }
}));
Object.defineProperty(exports, "PointsMaterial", ({
  enumerable: true,
  get: function get() {
    return _PointsMaterial["default"];
  }
}));
Object.defineProperty(exports, "PotreeLayer", ({
  enumerable: true,
  get: function get() {
    return _PotreeLayer["default"];
  }
}));
Object.defineProperty(exports, "PotreeSource", ({
  enumerable: true,
  get: function get() {
    return _PotreeSource["default"];
  }
}));
exports.REVISION = void 0;
Object.defineProperty(exports, "STRATEGY_DICHOTOMY", ({
  enumerable: true,
  get: function get() {
    return _LayerUpdateStrategy.STRATEGY_DICHOTOMY;
  }
}));
Object.defineProperty(exports, "STRATEGY_GROUP", ({
  enumerable: true,
  get: function get() {
    return _LayerUpdateStrategy.STRATEGY_GROUP;
  }
}));
Object.defineProperty(exports, "STRATEGY_MIN_NETWORK_TRAFFIC", ({
  enumerable: true,
  get: function get() {
    return _LayerUpdateStrategy.STRATEGY_MIN_NETWORK_TRAFFIC;
  }
}));
Object.defineProperty(exports, "STRATEGY_PROGRESSIVE", ({
  enumerable: true,
  get: function get() {
    return _LayerUpdateStrategy.STRATEGY_PROGRESSIVE;
  }
}));
Object.defineProperty(exports, "ShaderChunk", ({
  enumerable: true,
  get: function get() {
    return _ShaderChunk["default"];
  }
}));
Object.defineProperty(exports, "ShapefileParser", ({
  enumerable: true,
  get: function get() {
    return _ShapefileParser["default"];
  }
}));
Object.defineProperty(exports, "Source", ({
  enumerable: true,
  get: function get() {
    return _Source["default"];
  }
}));
Object.defineProperty(exports, "StreetControls", ({
  enumerable: true,
  get: function get() {
    return _StreetControls["default"];
  }
}));
Object.defineProperty(exports, "Style", ({
  enumerable: true,
  get: function get() {
    return _Style["default"];
  }
}));
Object.defineProperty(exports, "TMSSource", ({
  enumerable: true,
  get: function get() {
    return _TMSSource["default"];
  }
}));
Object.defineProperty(exports, "TiledGeometryLayer", ({
  enumerable: true,
  get: function get() {
    return _TiledGeometryLayer["default"];
  }
}));
Object.defineProperty(exports, "VIEW_EVENTS", ({
  enumerable: true,
  get: function get() {
    return _View.VIEW_EVENTS;
  }
}));
Object.defineProperty(exports, "VectorTilesSource", ({
  enumerable: true,
  get: function get() {
    return _VectorTilesSource["default"];
  }
}));
Object.defineProperty(exports, "View", ({
  enumerable: true,
  get: function get() {
    return _View["default"];
  }
}));
Object.defineProperty(exports, "WFSSource", ({
  enumerable: true,
  get: function get() {
    return _WFSSource["default"];
  }
}));
Object.defineProperty(exports, "WMSSource", ({
  enumerable: true,
  get: function get() {
    return _WMSSource["default"];
  }
}));
Object.defineProperty(exports, "WMTSSource", ({
  enumerable: true,
  get: function get() {
    return _WMTSSource["default"];
  }
}));
Object.defineProperty(exports, "colorLayerEffects", ({
  enumerable: true,
  get: function get() {
    return _LayeredMaterial.colorLayerEffects;
  }
}));
Object.defineProperty(exports, "ellipsoidSizes", ({
  enumerable: true,
  get: function get() {
    return _Ellipsoid.ellipsoidSizes;
  }
}));
Object.defineProperty(exports, "enableDracoLoader", ({
  enumerable: true,
  get: function get() {
    return _B3dmParser.enableDracoLoader;
  }
}));
Object.defineProperty(exports, "getMaxColorSamplerUnitsCount", ({
  enumerable: true,
  get: function get() {
    return _LayeredMaterial.getMaxColorSamplerUnitsCount;
  }
}));
Object.defineProperty(exports, "glTFLoader", ({
  enumerable: true,
  get: function get() {
    return _B3dmParser.glTFLoader;
  }
}));
Object.defineProperty(exports, "legacyGLTFLoader", ({
  enumerable: true,
  get: function get() {
    return _B3dmParser.legacyGLTFLoader;
  }
}));
Object.defineProperty(exports, "process3dTilesNode", ({
  enumerable: true,
  get: function get() {
    return _dTilesProcessing.process3dTilesNode;
  }
}));
Object.defineProperty(exports, "updateLayeredMaterialNodeElevation", ({
  enumerable: true,
  get: function get() {
    return _LayeredMaterialNodeProcessing.updateLayeredMaterialNodeElevation;
  }
}));
Object.defineProperty(exports, "updateLayeredMaterialNodeImagery", ({
  enumerable: true,
  get: function get() {
    return _LayeredMaterialNodeProcessing.updateLayeredMaterialNodeImagery;
  }
}));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ./Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ./Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _GeoidGrid = _interopRequireDefault(__webpack_require__(/*! ./Core/Geographic/GeoidGrid */ "./node_modules/itowns/lib/Core/Geographic/GeoidGrid.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ./Core/Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

var _Ellipsoid = _interopRequireWildcard(__webpack_require__(/*! ./Core/Math/Ellipsoid */ "./node_modules/itowns/lib/Core/Math/Ellipsoid.js"));

var _GlobeView = _interopRequireWildcard(__webpack_require__(/*! ./Core/Prefab/GlobeView */ "./node_modules/itowns/lib/Core/Prefab/GlobeView.js"));

var _PlanarView = _interopRequireDefault(__webpack_require__(/*! ./Core/Prefab/PlanarView */ "./node_modules/itowns/lib/Core/Prefab/PlanarView.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ./Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

var _MainLoop = __webpack_require__(/*! ./Core/MainLoop */ "./node_modules/itowns/lib/Core/MainLoop.js");

var _View = _interopRequireWildcard(__webpack_require__(/*! ./Core/View */ "./node_modules/itowns/lib/Core/View.js"));

var _FeatureProcessing = _interopRequireDefault(__webpack_require__(/*! ./Process/FeatureProcessing */ "./node_modules/itowns/lib/Process/FeatureProcessing.js"));

var _LayeredMaterialNodeProcessing = __webpack_require__(/*! ./Process/LayeredMaterialNodeProcessing */ "./node_modules/itowns/lib/Process/LayeredMaterialNodeProcessing.js");

var _OrientedImageCamera = _interopRequireDefault(__webpack_require__(/*! ./Renderer/OrientedImageCamera */ "./node_modules/itowns/lib/Renderer/OrientedImageCamera.js"));

var _PointsMaterial = _interopRequireDefault(__webpack_require__(/*! ./Renderer/PointsMaterial */ "./node_modules/itowns/lib/Renderer/PointsMaterial.js"));

var _GlobeControls = _interopRequireWildcard(__webpack_require__(/*! ./Controls/GlobeControls */ "./node_modules/itowns/lib/Controls/GlobeControls.js"));

var _FlyControls = _interopRequireDefault(__webpack_require__(/*! ./Controls/FlyControls */ "./node_modules/itowns/lib/Controls/FlyControls.js"));

var _FirstPersonControls = _interopRequireDefault(__webpack_require__(/*! ./Controls/FirstPersonControls */ "./node_modules/itowns/lib/Controls/FirstPersonControls.js"));

var _StreetControls = _interopRequireDefault(__webpack_require__(/*! ./Controls/StreetControls */ "./node_modules/itowns/lib/Controls/StreetControls.js"));

var _PlanarControls = _interopRequireWildcard(__webpack_require__(/*! ./Controls/PlanarControls */ "./node_modules/itowns/lib/Controls/PlanarControls.js"));

var _Feature2Mesh = _interopRequireDefault(__webpack_require__(/*! ./Converter/Feature2Mesh */ "./node_modules/itowns/lib/Converter/Feature2Mesh.js"));

var _FeaturesUtils = _interopRequireDefault(__webpack_require__(/*! ./Utils/FeaturesUtils */ "./node_modules/itowns/lib/Utils/FeaturesUtils.js"));

var _DEMUtils = _interopRequireDefault(__webpack_require__(/*! ./Utils/DEMUtils */ "./node_modules/itowns/lib/Utils/DEMUtils.js"));

var _CameraUtils = _interopRequireDefault(__webpack_require__(/*! ./Utils/CameraUtils */ "./node_modules/itowns/lib/Utils/CameraUtils.js"));

var _OrientationUtils = _interopRequireDefault(__webpack_require__(/*! ./Utils/OrientationUtils */ "./node_modules/itowns/lib/Utils/OrientationUtils.js"));

var _ShaderChunk = _interopRequireDefault(__webpack_require__(/*! ./Renderer/Shader/ShaderChunk */ "./node_modules/itowns/lib/Renderer/Shader/ShaderChunk.js"));

var _LayeredMaterial = __webpack_require__(/*! ./Renderer/LayeredMaterial */ "./node_modules/itowns/lib/Renderer/LayeredMaterial.js");

var _Capabilities = _interopRequireDefault(__webpack_require__(/*! ./Core/System/Capabilities */ "./node_modules/itowns/lib/Core/System/Capabilities.js"));

var _Camera = __webpack_require__(/*! ./Renderer/Camera */ "./node_modules/itowns/lib/Renderer/Camera.js");

var _Feature = _interopRequireWildcard(__webpack_require__(/*! ./Core/Feature */ "./node_modules/itowns/lib/Core/Feature.js"));

var _Style = _interopRequireDefault(__webpack_require__(/*! ./Core/Style */ "./node_modules/itowns/lib/Core/Style.js"));

var _Label = _interopRequireDefault(__webpack_require__(/*! ./Core/Label */ "./node_modules/itowns/lib/Core/Label.js"));

var _Layer = _interopRequireWildcard(__webpack_require__(/*! ./Layer/Layer */ "./node_modules/itowns/lib/Layer/Layer.js"));

var _ColorLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/ColorLayer */ "./node_modules/itowns/lib/Layer/ColorLayer.js"));

var _ElevationLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/ElevationLayer */ "./node_modules/itowns/lib/Layer/ElevationLayer.js"));

var _GeometryLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/GeometryLayer */ "./node_modules/itowns/lib/Layer/GeometryLayer.js"));

var _FeatureGeometryLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/FeatureGeometryLayer */ "./node_modules/itowns/lib/Layer/FeatureGeometryLayer.js"));

var _PointCloudLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/PointCloudLayer */ "./node_modules/itowns/lib/Layer/PointCloudLayer.js"));

var _PotreeLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/PotreeLayer */ "./node_modules/itowns/lib/Layer/PotreeLayer.js"));

var _C3DTilesLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/C3DTilesLayer */ "./node_modules/itowns/lib/Layer/C3DTilesLayer.js"));

var _TiledGeometryLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/TiledGeometryLayer */ "./node_modules/itowns/lib/Layer/TiledGeometryLayer.js"));

var _OrientedImageLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/OrientedImageLayer */ "./node_modules/itowns/lib/Layer/OrientedImageLayer.js"));

var _LayerUpdateStrategy = __webpack_require__(/*! ./Layer/LayerUpdateStrategy */ "./node_modules/itowns/lib/Layer/LayerUpdateStrategy.js");

var _ColorLayersOrdering = _interopRequireDefault(__webpack_require__(/*! ./Renderer/ColorLayersOrdering */ "./node_modules/itowns/lib/Renderer/ColorLayersOrdering.js"));

var _GlobeLayer = _interopRequireDefault(__webpack_require__(/*! ./Core/Prefab/Globe/GlobeLayer */ "./node_modules/itowns/lib/Core/Prefab/Globe/GlobeLayer.js"));

var _PlanarLayer = _interopRequireDefault(__webpack_require__(/*! ./Core/Prefab/Planar/PlanarLayer */ "./node_modules/itowns/lib/Core/Prefab/Planar/PlanarLayer.js"));

var _LabelLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/LabelLayer */ "./node_modules/itowns/lib/Layer/LabelLayer.js"));

var _EntwinePointTileLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/EntwinePointTileLayer */ "./node_modules/itowns/lib/Layer/EntwinePointTileLayer.js"));

var _GeoidLayer = _interopRequireDefault(__webpack_require__(/*! ./Layer/GeoidLayer */ "./node_modules/itowns/lib/Layer/GeoidLayer.js"));

var _Source = _interopRequireDefault(__webpack_require__(/*! ./Source/Source */ "./node_modules/itowns/lib/Source/Source.js"));

var _FileSource = _interopRequireDefault(__webpack_require__(/*! ./Source/FileSource */ "./node_modules/itowns/lib/Source/FileSource.js"));

var _TMSSource = _interopRequireDefault(__webpack_require__(/*! ./Source/TMSSource */ "./node_modules/itowns/lib/Source/TMSSource.js"));

var _WFSSource = _interopRequireDefault(__webpack_require__(/*! ./Source/WFSSource */ "./node_modules/itowns/lib/Source/WFSSource.js"));

var _WMSSource = _interopRequireDefault(__webpack_require__(/*! ./Source/WMSSource */ "./node_modules/itowns/lib/Source/WMSSource.js"));

var _WMTSSource = _interopRequireDefault(__webpack_require__(/*! ./Source/WMTSSource */ "./node_modules/itowns/lib/Source/WMTSSource.js"));

var _VectorTilesSource = _interopRequireDefault(__webpack_require__(/*! ./Source/VectorTilesSource */ "./node_modules/itowns/lib/Source/VectorTilesSource.js"));

var _OrientedImageSource = _interopRequireDefault(__webpack_require__(/*! ./Source/OrientedImageSource */ "./node_modules/itowns/lib/Source/OrientedImageSource.js"));

var _PotreeSource = _interopRequireDefault(__webpack_require__(/*! ./Source/PotreeSource */ "./node_modules/itowns/lib/Source/PotreeSource.js"));

var _C3DTilesSource = _interopRequireDefault(__webpack_require__(/*! ./Source/C3DTilesSource */ "./node_modules/itowns/lib/Source/C3DTilesSource.js"));

var _EntwinePointTileSource = _interopRequireDefault(__webpack_require__(/*! ./Source/EntwinePointTileSource */ "./node_modules/itowns/lib/Source/EntwinePointTileSource.js"));

var _GpxParser = _interopRequireDefault(__webpack_require__(/*! ./Parser/GpxParser */ "./node_modules/itowns/lib/Parser/GpxParser.js"));

var _GeoJsonParser = _interopRequireDefault(__webpack_require__(/*! ./Parser/GeoJsonParser */ "./node_modules/itowns/lib/Parser/GeoJsonParser.js"));

var _KMLParser = _interopRequireDefault(__webpack_require__(/*! ./Parser/KMLParser */ "./node_modules/itowns/lib/Parser/KMLParser.js"));

var _CameraCalibrationParser = _interopRequireDefault(__webpack_require__(/*! ./Parser/CameraCalibrationParser */ "./node_modules/itowns/lib/Parser/CameraCalibrationParser.js"));

var _ShapefileParser = _interopRequireDefault(__webpack_require__(/*! ./Parser/ShapefileParser */ "./node_modules/itowns/lib/Parser/ShapefileParser.js"));

var _LASParser = _interopRequireDefault(__webpack_require__(/*! ./Parser/LASParser */ "./node_modules/itowns/lib/Parser/LASParser.js"));

var _ISGParser = _interopRequireDefault(__webpack_require__(/*! ./Parser/ISGParser */ "./node_modules/itowns/lib/Parser/ISGParser.js"));

var _GDFParser = _interopRequireDefault(__webpack_require__(/*! ./Parser/GDFParser */ "./node_modules/itowns/lib/Parser/GDFParser.js"));

var _GTXParser = _interopRequireDefault(__webpack_require__(/*! ./Parser/GTXParser */ "./node_modules/itowns/lib/Parser/GTXParser.js"));

var _B3dmParser = __webpack_require__(/*! ./Parser/B3dmParser */ "./node_modules/itowns/lib/Parser/B3dmParser.js");

var _C3DTileset = _interopRequireDefault(__webpack_require__(/*! ./Core/3DTiles/C3DTileset */ "./node_modules/itowns/lib/Core/3DTiles/C3DTileset.js"));

var _C3DTBoundingVolume = _interopRequireDefault(__webpack_require__(/*! ./Core/3DTiles/C3DTBoundingVolume */ "./node_modules/itowns/lib/Core/3DTiles/C3DTBoundingVolume.js"));

var _C3DTBatchTable = _interopRequireDefault(__webpack_require__(/*! ./Core/3DTiles/C3DTBatchTable */ "./node_modules/itowns/lib/Core/3DTiles/C3DTBatchTable.js"));

var _C3DTExtensions = _interopRequireDefault(__webpack_require__(/*! ./Core/3DTiles/C3DTExtensions */ "./node_modules/itowns/lib/Core/3DTiles/C3DTExtensions.js"));

var _C3DTilesTypes = _interopRequireDefault(__webpack_require__(/*! ./Core/3DTiles/C3DTilesTypes */ "./node_modules/itowns/lib/Core/3DTiles/C3DTilesTypes.js"));

var _C3DTBatchTableHierarchyExtension = _interopRequireDefault(__webpack_require__(/*! ./Core/3DTiles/C3DTBatchTableHierarchyExtension */ "./node_modules/itowns/lib/Core/3DTiles/C3DTBatchTableHierarchyExtension.js"));

var _dTilesProcessing = __webpack_require__(/*! ./Process/3dTilesProcessing */ "./node_modules/itowns/lib/Process/3dTilesProcessing.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var conf = {
  version: '2.38.1'
};
var REVISION = conf.version; // Geographic tools

exports.REVISION = REVISION;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/B3dmParser.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/B3dmParser.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof3 = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;
exports.enableDracoLoader = enableDracoLoader;
exports.legacyGLTFLoader = exports.glTFLoader = void 0;

var _typeof2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Capabilities = _interopRequireDefault(__webpack_require__(/*! ../Core/System/Capabilities */ "./node_modules/itowns/lib/Core/System/Capabilities.js"));

var _GLTFLoader = __webpack_require__(/*! ../ThreeExtended/loaders/GLTFLoader */ "./node_modules/itowns/lib/ThreeExtended/loaders/GLTFLoader.js");

var _DRACOLoader = __webpack_require__(/*! ../ThreeExtended/loaders/DRACOLoader */ "./node_modules/itowns/lib/ThreeExtended/loaders/DRACOLoader.js");

var _LegacyGLTFLoader = _interopRequireDefault(__webpack_require__(/*! ./deprecated/LegacyGLTFLoader */ "./node_modules/itowns/lib/Parser/deprecated/LegacyGLTFLoader.js"));

var _ShaderUtils = _interopRequireDefault(__webpack_require__(/*! ../Renderer/Shader/ShaderUtils */ "./node_modules/itowns/lib/Renderer/Shader/ShaderUtils.js"));

var _Utf8Decoder = _interopRequireDefault(__webpack_require__(/*! ../Utils/Utf8Decoder */ "./node_modules/itowns/lib/Utils/Utf8Decoder.js"));

var _C3DTBatchTable = _interopRequireDefault(__webpack_require__(/*! ../Core/3DTiles/C3DTBatchTable */ "./node_modules/itowns/lib/Core/3DTiles/C3DTBatchTable.js"));

var _ReferencingLayerProperties = _interopRequireDefault(__webpack_require__(/*! ../Layer/ReferencingLayerProperties */ "./node_modules/itowns/lib/Layer/ReferencingLayerProperties.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof3(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

var matrixChangeUpVectorZtoY = new THREE.Matrix4().makeRotationX(Math.PI / 2); // For gltf rotation

var matrixChangeUpVectorZtoX = new THREE.Matrix4().makeRotationZ(-Math.PI / 2);
var glTFLoader = new _GLTFLoader.GLTFLoader();
exports.glTFLoader = glTFLoader;
var legacyGLTFLoader = new _LegacyGLTFLoader["default"]();
exports.legacyGLTFLoader = legacyGLTFLoader;

function filterUnsupportedSemantics(obj) {
  // see GLTFLoader GLTFShader.prototype.update function
  var supported = ['MODELVIEW', 'MODELVIEWINVERSETRANSPOSE', 'PROJECTION', 'JOINTMATRIX'];

  if (obj.gltfShader) {
    var names = []; // eslint-disable-next-line guard-for-in

    for (var name in obj.gltfShader.boundUniforms) {
      names.push(name);
    }

    for (var _i = 0, _names = names; _i < _names.length; _i++) {
      var _name = _names[_i];
      var semantic = obj.gltfShader.boundUniforms[_name].semantic;

      if (!supported.includes(semantic)) {
        delete obj.gltfShader.boundUniforms[_name];
      }
    }
  }
}
/**
 * @module B3dmParser
 */

/**
 * Enable Draco decoding for gltf.
 * @param {string} path to draco library folder.
 * This library is mandatory to load b3dm with Draco compression.
 * @param {object} config optional configuration for Draco compression.
 *
 * The Draco library files are in folder itowns/examples/libs/draco/.
 * You are obliged to indicate this path when you want enable the Draco Decoding.
 *
 * For more information on Draco, read file in /itowns/examples/libs/draco/README.md.
 *
 * @example <caption>Enable draco decoder</caption>
 * // if you copied the folder from /itowns/examples/libs/draco/ to your root project,
 * // You could set path with './'.
 * itowns.enableDracoLoader('./');
 */


function enableDracoLoader(path, config) {
  if (!path) {
    throw new Error('Path to draco folder is mandatory');
  }

  var dracoLoader = new _DRACOLoader.DRACOLoader();
  dracoLoader.setDecoderPath(path);

  if (config) {
    dracoLoader.setDecoderConfig(config);
  }

  glTFLoader.setDRACOLoader(dracoLoader);
}

var _default = {
  /** Parse b3dm buffer and extract THREE.Scene and batch table
   * @param {ArrayBuffer} buffer - the b3dm buffer.
   * @param {Object} options - additional properties.
   * @param {string=} [options.gltfUpAxis='Y'] - embedded glTF model up axis.
   * @param {string} options.urlBase - the base url of the b3dm file (used to fetch textures for the embedded glTF model).
   * @param {boolean=} [options.doNotPatchMaterial='false'] - disable patching material with logarithmic depth buffer support.
   * @param {float} [options.opacity=1.0] - the b3dm opacity.
   * @param {boolean|Material=} [options.overrideMaterials='false'] - override b3dm's embedded glTF materials. If overrideMaterials is a three.js material, it will be the material used to override.
   * @return {Promise} - a promise that resolves with an object containig a THREE.Scene (gltf) and a batch table (batchTable).
   *
   */
  parse: function parse(buffer, options) {
    var gltfUpAxis = options.gltfUpAxis;
    var urlBase = options.urlBase;

    if (!buffer) {
      throw new Error('No array buffer provided.');
    }

    var view = new DataView(buffer, 4); // starts after magic

    var byteOffset = 0;
    var b3dmHeader = {}; // Magic type is unsigned char [4]

    var magicNumberByteLength = 4;
    b3dmHeader.magic = _Utf8Decoder["default"].decode(new Uint8Array(buffer, 0, magicNumberByteLength));

    if (b3dmHeader.magic) {
      // Version, byteLength, batchTableJSONByteLength, batchTableBinaryByteLength and batchTable types are uint32
      b3dmHeader.version = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      b3dmHeader.byteLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      b3dmHeader.FTJSONLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      b3dmHeader.FTBinaryLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      b3dmHeader.BTJSONLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      b3dmHeader.BTBinaryLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      var headerByteLength = byteOffset + magicNumberByteLength;
      var promises = [];
      var FTJSON = {};
      var FT_RTC = new THREE.Vector3();

      if (b3dmHeader.FTJSONLength > 0) {
        var sizeBegin = headerByteLength;
        var jsonBuffer = buffer.slice(sizeBegin, b3dmHeader.FTJSONLength + sizeBegin);

        var content = _Utf8Decoder["default"].decode(new Uint8Array(jsonBuffer));

        FTJSON = JSON.parse(content);

        if (FTJSON.RTC_CENTER) {
          FT_RTC.fromArray(FTJSON.RTC_CENTER);
        } else {
          FT_RTC.set(0, 0, 0);
        }
      }

      if (b3dmHeader.FTBinaryLength > 0) {
        console.warn('3D Tiles feature table binary not supported yet.');
      } // Parse batch table


      if (b3dmHeader.BTJSONLength > 0) {
        // sizeBegin is an index to the beginning of the batch table
        var _sizeBegin = headerByteLength + b3dmHeader.FTJSONLength + b3dmHeader.FTBinaryLength;

        var BTBuffer = buffer.slice(_sizeBegin, b3dmHeader.BTJSONLength + _sizeBegin);
        promises.push(new _C3DTBatchTable["default"](BTBuffer, b3dmHeader.BTBinaryLength, FTJSON.BATCH_LENGTH, options.registeredExtensions));
      } else {
        promises.push(Promise.resolve({}));
      }

      var posGltf = headerByteLength + b3dmHeader.FTJSONLength + b3dmHeader.FTBinaryLength + b3dmHeader.BTJSONLength + b3dmHeader.BTBinaryLength;
      var gltfBuffer = buffer.slice(posGltf);
      var headerView = new DataView(gltfBuffer, 0, 20);
      promises.push(new Promise(function (resolve
      /* , reject */
      ) {
        var onload = function (gltf) {
          var _iterator = _createForOfIteratorHelper(gltf.scenes),
              _step;

          try {
            for (_iterator.s(); !(_step = _iterator.n()).done;) {
              var scene = _step.value;
              scene.traverse(filterUnsupportedSemantics);
            } // Rotation managed

          } catch (err) {
            _iterator.e(err);
          } finally {
            _iterator.f();
          }

          if (gltfUpAxis === undefined || gltfUpAxis === 'Y') {
            gltf.scene.applyMatrix4(matrixChangeUpVectorZtoY);
          } else if (gltfUpAxis === 'X') {
            gltf.scene.applyMatrix4(matrixChangeUpVectorZtoX);
          } // Apply relative center from Feature table.


          gltf.scene.position.copy(FT_RTC); // Apply relative center from gltf json.

          var contentArray = new Uint8Array(gltfBuffer, 20, headerView.getUint32(12, true));

          var content = _Utf8Decoder["default"].decode(new Uint8Array(contentArray));

          var json = JSON.parse(content);

          if (json.extensions && json.extensions.CESIUM_RTC) {
            gltf.scene.position.fromArray(json.extensions.CESIUM_RTC.center);
            gltf.scene.updateMatrixWorld(true);
          }

          gltf.scene.traverse(function (mesh) {
            mesh.frustumCulled = false;

            if (mesh.material) {
              if (options.overrideMaterials) {
                if (Array.isArray(mesh.material)) {
                  var _iterator2 = _createForOfIteratorHelper(mesh.material),
                      _step2;

                  try {
                    for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
                      var material = _step2.value;
                      material.dispose();
                    }
                  } catch (err) {
                    _iterator2.e(err);
                  } finally {
                    _iterator2.f();
                  }
                } else {
                  mesh.material.dispose();
                }

                if ((0, _typeof2["default"])(options.overrideMaterials) === 'object' && options.overrideMaterials.isMaterial) {
                  mesh.material = options.overrideMaterials;
                } else {
                  mesh.material.depthWrite = true;
                }
              } else if (_Capabilities["default"].isLogDepthBufferSupported() && mesh.material.isRawShaderMaterial && !options.doNotPatchMaterial) {
                _ShaderUtils["default"].patchMaterialForLogDepthSupport(mesh.material);

                console.warn('b3dm shader has been patched to add log depth buffer support');
              }

              (0, _ReferencingLayerProperties["default"])(mesh.material, options.layer);
            }
          });
          resolve(gltf);
        };

        var version = headerView.getUint32(4, true);

        if (version === 1) {
          legacyGLTFLoader.parse(gltfBuffer, urlBase, onload);
        } else {
          glTFLoader.parse(gltfBuffer, urlBase, onload);
        }
      }));
      return Promise.all(promises).then(function (values) {
        return {
          gltf: values[1],
          batchTable: values[0]
        };
      });
    } else {
      throw new Error('Invalid b3dm file.');
    }
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/CameraCalibrationParser.js":
/*!*******************************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/CameraCalibrationParser.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _OrientedImageCamera = _interopRequireDefault(__webpack_require__(/*! ../Renderer/OrientedImageCamera */ "./node_modules/itowns/lib/Renderer/OrientedImageCamera.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

/**
 * The CameraCalibrationParser module provide a [parse]{@link module:CameraCalibrationParser.parse}
 * method that takes a JSON array of camera calibrations in and yields an array of {@link OrientedImageCamera}
 *
 * @module CameraCalibrationParser
 */
var textureLoader = new THREE.TextureLoader();
var matrix3 = new THREE.Matrix3(); // the json format encodes the following transformation:
// extrinsics: p_local = rotation * (p_world - position)
// intrinsics: p_pixel = projection * p_local
// distortion: p_raw = distortion(p_pixel)

function parseCalibration(calibration) {
  var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  var useMask = options.useMask == undefined ? true : options.useMask;
  var imageYDown = options.imageYDown == undefined ? true : options.imageYDown; // parse intrinsics

  var proj = calibration.projection;
  var size = new THREE.Vector2().fromArray(calibration.size);
  var focal = new THREE.Vector2(proj[0], proj[4]); // Center of image,  convention in digital image is Y dow
  // To transform image space to webGl texture. It could inverse Y axis.

  var center = new THREE.Vector2(proj[2], imageYDown ? size.y - proj[5] : proj[5]);
  var skew = proj[1];
  var camera = new _OrientedImageCamera["default"](size, focal, center, options.near, options.far, skew); // parse extrinsics: Object3d.matrix is from local to world
  // p_world = position + transpose(rotation) * p_local

  camera.position.fromArray(calibration.position); // calibration.rotation is row-major but fromArray expects a column-major array, yielding the transposed matrix

  var rotationInverse = matrix3.fromArray(calibration.rotation);
  camera.matrix.setFromMatrix3(rotationInverse);
  camera.quaternion.setFromRotationMatrix(camera.matrix); // local axes for cameras is (X right, Y up, Z back) rather than (X right, Y down, Z front)

  camera.rotateX(Math.PI);

  if (calibration.distortion) {
    camera.distortion.setFromMicmacCalibration(calibration.distortion, imageYDown);
  }

  camera.maskPath = calibration.mask;
  camera.name = calibration.id;
  var resolve;
  var deferred = new Promise(function (r) {
    resolve = r;
  });

  if (useMask && camera.maskPath) {
    textureLoader.load(camera.maskPath, function (mask) {
      camera.maskTexture = mask;
      resolve(camera);
    });
  } else {
    resolve(camera);
  }

  return deferred;
}

var _default = {
  /**
   * Description of a camera calibration in a JSON file.
   *
   * @typedef CameraCalibrationJson
   * @type {Object}
   *
   * @property {number[]} projection - projection matrix,
   * @property {number[]} size - image size in pixel.
   * @property {number[]} position - position of the camera.
   * @property {number[]} rotation - rotation matrix
   * @property {Object} [distorsion={}] - distorsion
   * @property {number[]} [distorsion.pps]
   * @property {number[]} [distorsion.poly357]
   * @property {number[]} [distorsion.limit]
   * @property {number[]} [distorsion.l1l2]
   * @property {number[]} [distorsion.etat]
   */

  /**
   * Parser a JSON array of camera calibrations and return an array of {@link OrientedImageCamera}.
   * @param {string|JSON} json - the json content of the calibration file.
   * @param {Object} [options={}] - Options controlling the parsing.
   * @param {string} [options.near=0.1] - Near of the created cameras. Default value comes from created {@link OrientedImageCamera}
   * @param {string} [options.far=1000] - Far of the created cameras. Default value comes from created {@link OrientedImageCamera}
   * @return {Promise} - A promise resolving with an array of {@link OrientedImageCamera}.
   */
  parse: function parse(json) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    if (typeof json === 'string') {
      json = JSON.parse(json);
    }

    return Promise.all(json.map(function (calibration) {
      return parseCalibration(calibration, options);
    }));
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/GDFParser.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/GDFParser.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;
exports.getHeaderAttribute = getHeaderAttribute;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _GeoidGrid = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/GeoidGrid */ "./node_modules/itowns/lib/Core/Geographic/GeoidGrid.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _GTXParser = __webpack_require__(/*! ./GTXParser */ "./node_modules/itowns/lib/Parser/GTXParser.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function getHeaderAttribute(header, attributeName) {
  var attributeRow = header[header.indexOf(header.find(function (element) {
    return element.includes(attributeName);
  }))].split(' ').filter(function (value) {
    return value !== '';
  });
  return parseFloat(attributeRow[attributeRow.length - 1]);
}
/**
 * The `GDFParser` module provides a `[parse]{@link module:GDFParser.parse}` method. This method takes the content of a
 * GDF file in, and returns a `{@link GeoidGrid}`. the `{@link GeoidGrid}` contains all the necessary attributes and
 * methods to access the GDF data in iTowns.
 *
 * @module GDFParser
 */


var _default = {
  /**
   * Parses a GDF file content and returns a corresponding `{@link GeoidGrid}`.
   *
   * @param   {string}    gdf                             The content of the GDF file to parse.
   * @param   {Object}    options                         An object gathering the optional parameters to pass to
                                                          * the parser.
   * @param   {Object}    [options.in={}]                 Information on the GDF data.
   * @param   {string}    [options.in.crs='EPSG:4326']    The Coordinates Reference System (CRS) of the GDF data.
                                                          * It must be a geographic CRS, and must be given as an EPSG
                                                          * code.
   *
   * @returns {Promise<GeoidGrid>}    A promise resolving with a `{@link GeoidGrid}`, which contains all the necessary
                                      * attributes and methods to access GDF file data.
   */
  parse: function parse(gdf) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
      "in": {}
    };
    var rows = gdf.split('\n');
    var firstMeasureLine = rows.indexOf(rows.find(function (row) {
      return row.includes('end_of_head');
    })) + 1;
    var rawHeaderData = rows.slice(0, firstMeasureLine); // ---------- GET METADATA FROM THE FILE : ----------

    var metadata = {
      minX: getHeaderAttribute(rawHeaderData, 'longlimit_west'),
      maxX: getHeaderAttribute(rawHeaderData, 'longlimit_east'),
      minY: getHeaderAttribute(rawHeaderData, 'latlimit_south'),
      maxY: getHeaderAttribute(rawHeaderData, 'latlimit_north'),
      stepX: getHeaderAttribute(rawHeaderData, 'gridstep'),
      stepY: getHeaderAttribute(rawHeaderData, 'gridstep'),
      nRows: getHeaderAttribute(rawHeaderData, 'latitude_parallels'),
      nColumns: getHeaderAttribute(rawHeaderData, 'longitude_parallels')
    }; // ---------- BUILD A DATA VIEWER FROM THE TEXT DATA : ----------

    var data = new DataView(new ArrayBuffer(_GTXParser.BYTES_PER_DOUBLE * metadata.nRows * metadata.nColumns));
    var index = 0;

    var _iterator = _createForOfIteratorHelper(rows.slice(firstMeasureLine, rows.length)),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var row = _step.value;
        row = row.split(' ').filter(function (value) {
          return value !== '';
        });

        if (!row.length) {
          continue;
        }

        data.setFloat64(index * _GTXParser.BYTES_PER_DOUBLE, parseFloat(row[2]));
        index++;
      } // ---------- CREATE A GeoidGrid FOR THE GIVEN FILE DATA : ----------

    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }

    var dataExtent = new _Extent["default"](options["in"].crs || 'EPSG:4326', metadata.minX, metadata.maxX, metadata.minY, metadata.maxY);
    var dataStep = new THREE.Vector2(metadata.stepX, metadata.stepY);
    return Promise.resolve(new _GeoidGrid["default"](dataExtent, dataStep, function getData(verticalIndex, horizontalIndex) {
      return data.getFloat64((metadata.nColumns * (metadata.nRows - verticalIndex - 1) + horizontalIndex) * _GTXParser.BYTES_PER_DOUBLE);
    }));
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/GTXParser.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/GTXParser.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.BYTES_PER_FLOAT = exports.BYTES_PER_DOUBLE = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _GeoidGrid = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/GeoidGrid */ "./node_modules/itowns/lib/Core/Geographic/GeoidGrid.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var BYTES_PER_DOUBLE = 8;
exports.BYTES_PER_DOUBLE = BYTES_PER_DOUBLE;
var BYTES_PER_FLOAT = 4;
/**
 * The `GTXParser` module provides a `[parse]{@link module:GTXParser.parse}` method. This method takes the content of a
 * GTX file in, and returns a `{@link GeoidGrid}`. The `{@link GeoidGrid}` contains all the necessary attributes and
 * methods to access the GTX data in iTowns.
 *
 * @module GTXParser
 */

exports.BYTES_PER_FLOAT = BYTES_PER_FLOAT;
var _default = {
  /**
   * Parses a GTX file content and returns a corresponding `{@link GeoidGrid}`.
   *
   * @param   {ArrayBuffer}   gtx                             The content of the GTX file to parse.
   * @param   {Object}        options                         An object gathering the optional parameters to pass to
                                                              * the parser.
   * @param   {Object}        [options.in={}]                 Information on the GTX data.
   * @param   {string}        [options.in.crs='EPSG:4326']    The Coordinates Reference System (CRS) of the GTX data.
                                                              * It must be a geographic CRS, and must be given as an
                                                              * EPSG code.
   * @param   {string}        [options.in.dataType='float']   The encoding of geoid height data within the GTX file.
                                                              * Must be `'float'` or `'double'`.
   *
   * @returns {Promise<GeoidGrid>}    A promise resolving with a `{@link GeoidGrid}`, which contains all the necessary
                                      * attributes and methods to access GTX file data.
   */
  parse: function parse(gtx) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
      "in": {}
    };
    var dataType = options["in"].dataType || 'float';

    if (!['float', 'double'].includes(dataType)) {
      throw new Error('`dataType` parameter is incorrect for GTXParser.parse method. ' + 'This parameter must be either `double` or `float`.');
    } // ---------- GET METADATA FROM THE FILE : ----------


    var headerView = new DataView(gtx, 0, 40);
    var metadata = {
      minX: headerView.getFloat64(8),
      minY: headerView.getFloat64(0),
      stepX: headerView.getFloat64(24),
      stepY: headerView.getFloat64(16),
      nColumns: headerView.getInt32(36),
      nRows: headerView.getInt32(32)
    }; // ---------- BUILD A DATA VIEWER : ----------

    var dataView = new DataView(gtx, 40); // ---------- CREATE A GeoidGrid FOR THE GIVEN FILE DATA : ----------
    // formula for the max longitude : maxLongitude = minLongitude + deltaLongitude * (nColumns - 1)

    var maxX = metadata.minX + metadata.stepX * (metadata.nColumns - 1); // formula for the max latitude : maxLatitude = minLatitude + deltaLatitude * (nRows - 1)

    var maxY = metadata.minY + metadata.stepY * (metadata.nRows - 1);
    var dataExtent = new _Extent["default"](options["in"].crs || 'EPSG:4326', metadata.minX, maxX, metadata.minY, maxY);
    var dataStep = new THREE.Vector2(metadata.stepX, metadata.stepY);
    return Promise.resolve(new _GeoidGrid["default"](dataExtent, dataStep, function getData(verticalIndex, horizontalIndex) {
      // formula to get the index of a geoid height from a latitude and longitude indexes is :
      // ``(nColumns * latIndex + lonIndex) * nBytes``, where nBytes stands for the number of bytes geoid
      // height data are encoded on.
      if (dataType === 'float') {
        return dataView.getFloat32((metadata.nColumns * verticalIndex + horizontalIndex) * BYTES_PER_FLOAT);
      } else if (dataType === 'double') {
        return dataView.getFloat64((metadata.nColumns * verticalIndex + horizontalIndex) * BYTES_PER_DOUBLE);
      }
    }));
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/GeoJsonParser.js":
/*!*********************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/GeoJsonParser.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Feature = __webpack_require__(/*! ../Core/Feature */ "./node_modules/itowns/lib/Core/Feature.js");

var _Style = _interopRequireDefault(__webpack_require__(/*! ../Core/Style */ "./node_modules/itowns/lib/Core/Style.js"));

var _Undeprecator = __webpack_require__(/*! ../Core/Deprecated/Undeprecator */ "./node_modules/itowns/lib/Core/Deprecated/Undeprecator.js");

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function readCRS(json) {
  if (json.crs) {
    if (json.crs.type.toLowerCase() == 'epsg') {
      return "EPSG:".concat(json.crs.properties.code);
    } else if (json.crs.type.toLowerCase() == 'name') {
      if (json.crs.properties.name.toLowerCase().includes('epsg:')) {
        // OGC CRS URN: urn:ogc:def:crs:authority:version:code => EPSG:[...]:code
        // legacy identifier: authority:code => EPSG:code
        var codeStart = json.crs.properties.name.lastIndexOf(':');

        if (codeStart > 0) {
          return "EPSG:".concat(json.crs.properties.name.substr(codeStart + 1));
        }
      }

      throw new Error("Unsupported CRS authority '".concat(json.crs.properties.name, "'"));
    }

    throw new Error("Unsupported CRS type '".concat(json.crs, "'"));
  } // assume default crs


  return 'EPSG:4326';
}

var coord = new _Coordinates["default"]('EPSG:4978', 0, 0, 0);
var last = new _Coordinates["default"]('EPSG:4978', 0, 0, 0);
var first = new _Coordinates["default"]('EPSG:4978', 0, 0, 0); // filter with the first point

var firstPtIsOut = function (extent, aCoords, crs) {
  coord.crs = crs;
  coord.setFromArray(aCoords[0]);
  return !extent.isPointInside(coord);
};

var toFeature = {
  populateGeometry: function populateGeometry(crsIn, coordinates, geometry, feature) {
    geometry.startSubGeometry(coordinates.length, feature);
    coord.crs = crsIn; // coordinates is a list of pair [[x1, y1], [x2, y2], ..., [xn, yn]]
    // or list of triplet [[x1, y1, z1], [x2, y2, z2], ..., [xn, yn, zn]]

    var _iterator = _createForOfIteratorHelper(coordinates),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var triplet = _step.value;
        coord.setFromValues(triplet[0], triplet[1], triplet[2]);
        geometry.pushCoordinates(coord, feature);
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }

    geometry.updateExtent();
  },
  // compute clockwise polygon
  populateGeometryWithCCW: function populateGeometryWithCCW(crsIn, coordinates, geometry, feature) {
    geometry.startSubGeometry(coordinates.length, feature);
    coord.crs = crsIn;
    var sum = 0;
    first.setFromValues(coordinates[0][0], coordinates[0][1], coordinates[0][2]);
    last.copy(first);

    for (var i = 0; i < coordinates.length; i++) {
      coord.setFromValues(coordinates[i][0], coordinates[i][1], coordinates[i][2]);
      sum += (last.x - coord.x) * (last.y + coord.y);
      last.copy(coord);
      geometry.pushCoordinates(coord, feature);
    }

    sum += (last.x - first.x) * (last.y + first.y);
    geometry.getLastSubGeometry().ccw = sum < 0;
    geometry.updateExtent();
  },
  point: function point(feature, crsIn, coordsIn, collection, properties) {
    this["default"](feature, crsIn, [coordsIn], collection, properties);
  },
  "default": function _default(feature, crsIn, coordsIn, collection, properties) {
    if (collection.filterExtent && firstPtIsOut(collection.filterExtent, coordsIn, crsIn)) {
      return;
    }

    var geometry = feature.bindNewGeometry();
    geometry.properties = properties;
    geometry.properties.style = new _Style["default"]({}, feature.style).setFromGeojsonProperties(properties, feature.type);
    this.populateGeometry(crsIn, coordsIn, geometry, feature);
    feature.updateExtent(geometry);
  },
  polygon: function polygon(feature, crsIn, coordsIn, collection, properties) {
    // filtering
    if (collection.filterExtent && firstPtIsOut(collection.filterExtent, coordsIn[0], crsIn)) {
      return;
    }

    var geometry = feature.bindNewGeometry();
    geometry.properties = properties;
    geometry.properties.style = new _Style["default"]({}, feature.style).setFromGeojsonProperties(properties, feature.type); // Then read contour and holes

    for (var i = 0; i < coordsIn.length; i++) {
      this.populateGeometryWithCCW(crsIn, coordsIn[i], geometry, feature);
    }

    feature.updateExtent(geometry);
  },
  multi: function multi(type, feature, crsIn, coordsIn, collection, properties) {
    var _iterator2 = _createForOfIteratorHelper(coordsIn),
        _step2;

    try {
      for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
        var coords = _step2.value;
        this[type](feature, crsIn, coords, collection, properties);
      }
    } catch (err) {
      _iterator2.e(err);
    } finally {
      _iterator2.f();
    }
  }
};

function coordinatesToFeature(type, feature, crsIn, coordinates, collection, properties) {
  if (coordinates.length == 0) {
    return;
  }

  switch (type) {
    case 'point':
    case 'linestring':
      return toFeature["default"](feature, crsIn, coordinates, collection, properties);

    case 'multipoint':
      return toFeature.multi('point', feature, crsIn, coordinates, collection, properties);

    case 'multilinestring':
      return toFeature.multi('default', feature, crsIn, coordinates, collection, properties);

    case 'polygon':
      return toFeature.polygon(feature, crsIn, coordinates, collection, properties);

    case 'multipolygon':
      return toFeature.multi('polygon', feature, crsIn, coordinates, collection, properties);

    case 'geometrycollection':
    default:
      throw new Error("Unhandled geojson type ".concat(feature.type));
  }
}

function toFeatureType(jsonType) {
  switch (jsonType) {
    case 'point':
    case 'multipoint':
      return _Feature.FEATURE_TYPES.POINT;

    case 'linestring':
    case 'multilinestring':
      return _Feature.FEATURE_TYPES.LINE;

    case 'polygon':
    case 'multipolygon':
      return _Feature.FEATURE_TYPES.POLYGON;

    case 'geometrycollection':
    default:
      throw new Error("Unhandled geometry type ".concat(jsonType));
  }
}

var keyProperties = ['type', 'geometry', 'properties'];

function jsonFeatureToFeature(crsIn, json, collection) {
  var jsonType = json.geometry.type.toLowerCase();
  var featureType = toFeatureType(jsonType);
  var feature = collection.requestFeatureByType(featureType);
  var coordinates = jsonType != 'point' ? json.geometry.coordinates : [json.geometry.coordinates];
  var properties = json.properties || {}; // copy other properties

  for (var _i = 0, _Object$keys = Object.keys(json); _i < _Object$keys.length; _i++) {
    var key = _Object$keys[_i];

    if (!keyProperties.includes(key.toLowerCase())) {
      // create `geojson` key if it does not exist yet
      properties.geojson = properties.geojson || {}; // add key defined property to `geojson` property

      properties.geojson[key] = json[key];
    }
  }

  coordinatesToFeature(jsonType, feature, crsIn, coordinates, collection, properties);
  return feature;
}

function jsonFeaturesToFeatures(crsIn, jsonFeatures, options) {
  var collection = new _Feature.FeatureCollection(options);

  var filter = options.filter || function () {
    return true;
  };

  var _iterator3 = _createForOfIteratorHelper(jsonFeatures),
      _step3;

  try {
    for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
      var jsonFeature = _step3.value;

      if (filter(jsonFeature.properties, jsonFeature.geometry)) {
        jsonFeatureToFeature(crsIn, jsonFeature, collection);
      }
    }
  } catch (err) {
    _iterator3.e(err);
  } finally {
    _iterator3.f();
  }

  collection.removeEmptyFeature();
  collection.updateExtent();
  return collection;
}
/**
 * The GeoJsonParser module provide a [parse]{@link module:GeoJsonParser.parse}
 * method that takes a GeoJSON in and gives an object formatted for iTowns
 * containing all necessary informations to display this GeoJSON.
 *
 * @module GeoJsonParser
 */


var _default = {
  /**
   * Parse a GeoJSON file content and return a [FeatureCollection]{@link FeatureCollection}.
   *
   * @param {string} json - The GeoJSON file content to parse.
   * @param {ParsingOptions} options - Options controlling the parsing.
    * @return {Promise} A promise resolving with a [FeatureCollection]{@link FeatureCollection}.
   */
  parse: function parse(json) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    options = (0, _Undeprecator.deprecatedParsingOptionsToNewOne)(options);
    options["in"] = options["in"] || {};
    var out = options.out;
    var _in = options["in"];

    if (typeof json === 'string') {
      json = JSON.parse(json);
    }

    _in.crs = _in.crs || readCRS(json);

    if (out.filteringExtent) {
      if (typeof out.filteringExtent == 'boolean') {
        out.filterExtent = json.extent.as(_in.crs);
      } else if (out.filteringExtent.isExtent) {
        out.filterExtent = out.filteringExtent;
      }
    }

    switch (json.type.toLowerCase()) {
      case 'featurecollection':
        return Promise.resolve(jsonFeaturesToFeatures(_in.crs, json.features, out));

      case 'feature':
        return Promise.resolve(jsonFeaturesToFeatures(_in.crs, [json], out));

      default:
        throw new Error("Unsupported GeoJSON type: '".concat(json.type));
    }
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/GpxParser.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/GpxParser.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _togeojson = __webpack_require__(/*! @tmcw/togeojson */ "./node_modules/@tmcw/togeojson/dist/togeojson.umd.js");

var _GeoJsonParser = _interopRequireDefault(__webpack_require__(/*! ./GeoJsonParser */ "./node_modules/itowns/lib/Parser/GeoJsonParser.js"));

var _Undeprecator = __webpack_require__(/*! ../Core/Deprecated/Undeprecator */ "./node_modules/itowns/lib/Core/Deprecated/Undeprecator.js");

/**
 * The GpxParser module provides a [parse]{@link module:GpxParser.parse}
 * method that takes a GPX in and gives an object formatted for iTowns
 * containing all necessary informations to display this GPX.
 *
 * @module GpxParser
 */
var _default = {
  /**
   * Parse a GPX file content and return a [FeatureCollection]{@link
   * module:GeoJsonParser~FeatureCollection}.
   *
   * @param {XMLDocument} gpxFile - The GPX file content to parse.
   * @param {ParsingOptions} options - Options controlling the parsing.
   *
   * @return {Promise} A promise resolving with a [FeatureCollection]{@link
   * module:GeoJsonParser~FeatureCollection}.
   */
  parse: function parse(gpxFile, options) {
    options = (0, _Undeprecator.deprecatedParsingOptionsToNewOne)(options);
    return _GeoJsonParser["default"].parse((0, _togeojson.gpx)(gpxFile), options);
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/ISGParser.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/ISGParser.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _GeoidGrid = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/GeoidGrid */ "./node_modules/itowns/lib/Core/Geographic/GeoidGrid.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _GDFParser = __webpack_require__(/*! ./GDFParser */ "./node_modules/itowns/lib/Parser/GDFParser.js");

var _GTXParser = __webpack_require__(/*! ./GTXParser */ "./node_modules/itowns/lib/Parser/GTXParser.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

/**
 * The `ISGParser` module provides a `[parse]{@link module:ISGParser.parse}` method. This method takes the content of a
 * ISG file in, and returns a `{@link GeoidGrid}`. the `{@link GeoidGrid}` contains all the necessary attributes and
 * methods to access the ISG data in iTowns.
 *
 * @module ISGParser
 */
var _default = {
  /**
   * Parses an ISG file content and returns a corresponding `{@link GeoidGrid}`.
   *
   * @param   {string}    isg                             The content of the ISG file to parse.
   * @param   {Object}    options                         An object gathering the optional parameters to pass to
                                                          * the parser.
   * @param   {Object}    [options.in={}]                 Information on the ISG data.
   * @param   {string}    [options.in.crs='EPSG:4326']    The Coordinates Reference System (CRS) of the ISG data.
                                                          * It must be a geographic CRS, and must be given as an EPSG
                                                          * code.
   *
   * @returns {Promise<GeoidGrid>}    A promise resolving with a `{@link GeoidGrid}`, which contains all the necessary
                                      * attributes and methods to access ISG file data.
   */
  parse: function parse(isg) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
      "in": {}
    };
    var rows = isg.split('\n');
    var firstMeasureLine = rows.indexOf(rows.find(function (row) {
      return row.includes('end_of_head');
    })) + 1;
    var rawHeaderData = rows.slice(0, firstMeasureLine); // ---------- GET METADATA FROM THE FILE : ----------

    var metadata = {
      minX: (0, _GDFParser.getHeaderAttribute)(rawHeaderData, 'lon min'),
      maxX: (0, _GDFParser.getHeaderAttribute)(rawHeaderData, 'lon max'),
      minY: (0, _GDFParser.getHeaderAttribute)(rawHeaderData, 'lat min'),
      maxY: (0, _GDFParser.getHeaderAttribute)(rawHeaderData, 'lat max'),
      stepX: (0, _GDFParser.getHeaderAttribute)(rawHeaderData, 'delta lon'),
      stepY: (0, _GDFParser.getHeaderAttribute)(rawHeaderData, 'delta lat'),
      nRows: (0, _GDFParser.getHeaderAttribute)(rawHeaderData, 'nrows'),
      nColumns: (0, _GDFParser.getHeaderAttribute)(rawHeaderData, 'ncols')
    }; // ---------- BUILD A DATA VIEWER FROM THE TEXT DATA : ----------

    var data = new DataView(new ArrayBuffer(_GTXParser.BYTES_PER_DOUBLE * metadata.nRows * metadata.nColumns));
    var index = 0;

    var _iterator = _createForOfIteratorHelper(rows.slice(firstMeasureLine, rows.length)),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var row = _step.value;
        row = row.split(' ').filter(function (value) {
          return value !== '';
        });

        if (!row.length) {
          continue;
        }

        var _iterator2 = _createForOfIteratorHelper(row),
            _step2;

        try {
          for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
            var value = _step2.value;
            data.setFloat64(index * _GTXParser.BYTES_PER_DOUBLE, parseFloat(value));
            index++;
          }
        } catch (err) {
          _iterator2.e(err);
        } finally {
          _iterator2.f();
        }
      } // ---------- CREATE A GeoidGrid FOR THE GIVEN FILE DATA : ----------

    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }

    var dataExtent = new _Extent["default"](options["in"].crs || 'EPSG:4326', metadata.minX + metadata.stepX / 2, metadata.maxX - metadata.stepX / 2, metadata.minY + metadata.stepY / 2, metadata.maxY - metadata.stepY / 2);
    var dataStep = new THREE.Vector2(metadata.stepX, metadata.stepY);
    return Promise.resolve(new _GeoidGrid["default"](dataExtent, dataStep, function getData(verticalIndex, horizontalIndex) {
      return data.getFloat64((metadata.nColumns * verticalIndex + horizontalIndex) * _GTXParser.BYTES_PER_DOUBLE);
    }));
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/KMLParser.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/KMLParser.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _togeojson = __webpack_require__(/*! @tmcw/togeojson */ "./node_modules/@tmcw/togeojson/dist/togeojson.umd.js");

var _GeoJsonParser = _interopRequireDefault(__webpack_require__(/*! ./GeoJsonParser */ "./node_modules/itowns/lib/Parser/GeoJsonParser.js"));

var _Undeprecator = __webpack_require__(/*! ../Core/Deprecated/Undeprecator */ "./node_modules/itowns/lib/Core/Deprecated/Undeprecator.js");

/**
 * The KMLParser module provides a [parse]{@link module:KMLParser.parse}
 * method that takes a KML in and gives an object formatted for iTowns
 * containing all necessary informations to display this KML.
 *
 * @module KMLParser
 */
var _default = {
  /**
   * Parse a KML file content and return a [FeatureCollection]{@link
   * module:GeoJsonParser~FeatureCollection}.
   *
   * @param {XMLDocument} kmlFile - The KML file content to parse.
   * @param {ParsingOptions} options - Options controlling the parsing.
   *
   * @return {Promise} A promise resolving with a [FeatureCollection]{@link
   * module:GeoJsonParser~FeatureCollection}.
   */
  parse: function parse(kmlFile, options) {
    options = (0, _Undeprecator.deprecatedParsingOptionsToNewOne)(options);
    return _GeoJsonParser["default"].parse((0, _togeojson.kml)(kmlFile), options);
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/LASParser.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/LASParser.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _las = __webpack_require__(/*! @loaders.gl/las */ "./node_modules/@loaders.gl/las/dist/esm/index.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

// See this document for LAS format specification
// https://www.asprs.org/wp-content/uploads/2010/12/LAS_1_4_r13.pdf
// http://www.cs.unc.edu/~isenburg/lastools/download/laszip.pdf

/**
 * The LASParser module provides a [parse]{@link module:LASParser.parse} method
 * that takes a LAS file or a LAZ (LASZip) file in, and gives a
 * `THREE.BufferGeometry` containing all the necessary attributes to be
 * displayed in iTowns. It uses the
 * [LASLoader](https://loaders.gl/modules/las/docs/api-reference/las-loader)
 * from `loaders.gl`.
 *
 * @module LASParser
 */
var _default = {
  /**
   * Parses a LAS file or a LAZ (LASZip) file and return the corresponding
   * `THREE.BufferGeometry`.
   *
   * @param {ArrayBuffer} data - The file content to parse.
   * @param {Object} [options] - Options to give to the parser.
   * @param {number|string} [options.in.colorDepth='auto'] - Does the color
   * encoding is known ? Is it `8` or `16` bits ? By default it is to
   * `'auto'`, but it will be more performant if a specific value is set.
   * @param {number} [options.out.skip=1] - Read one point from every `skip`
   * points.
   *
   * @return {Promise} A promise resolving with a `THREE.BufferGeometry`. The
   * header of the file is contained in `userData`.
   */
  parse: function parse(data) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    options["in"] = options["in"] || {};
    options.out = options.out || {};
    return _las.LASLoader.parse(data, {
      las: {
        colorDepth: options["in"].colorDepth || 'auto',
        skip: options.out.skip || 1
      }
    }).then(function (parsedData) {
      var geometry = new THREE.BufferGeometry();
      geometry.userData = parsedData.loaderData;
      geometry.userData.vertexCount = parsedData.header.vertexCount;
      geometry.userData.boundingBox = parsedData.header.boundingBox;
      var positionBuffer = new THREE.BufferAttribute(parsedData.attributes.POSITION.value, 3, false);
      geometry.setAttribute('position', positionBuffer);
      var intensityBuffer = new THREE.BufferAttribute(parsedData.attributes.intensity.value, 1, true);
      geometry.setAttribute('intensity', intensityBuffer);
      var classificationBuffer = new THREE.BufferAttribute(parsedData.attributes.classification.value, 1, true);
      geometry.setAttribute('classification', classificationBuffer);

      if (parsedData.attributes.COLOR_0) {
        var colorBuffer = new THREE.BufferAttribute(parsedData.attributes.COLOR_0.value, 4, true);
        geometry.setAttribute('color', colorBuffer);
      }

      geometry.computeBoundingBox();
      return geometry;
    });
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/MapBoxUrlParser.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/MapBoxUrlParser.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;
var urlRe = /^(\w+):\/\/([^/?]*)(\/[^?]+)?\??(.+)?/;
var config = {
  API_URL: 'https://api.mapbox.com',
  REQUIRE_ACCESS_TOKEN: true,
  ACCESS_TOKEN: null
};

function formatUrl(obj) {
  var params = obj.params.length ? "?".concat(obj.params.join('&')) : '';
  return "".concat(obj.protocol, "://").concat(obj.authority).concat(obj.path).concat(params);
}

function makeAPIURL(urlObject, accessToken) {
  var apiUrlObject = parseUrl(config.API_URL);
  urlObject.protocol = apiUrlObject.protocol;
  urlObject.authority = apiUrlObject.authority;

  if (urlObject.protocol === 'http') {
    var i = urlObject.params.indexOf('secure');

    if (i >= 0) {
      urlObject.params.splice(i, 1);
    }
  }

  if (apiUrlObject.path !== '/') {
    urlObject.path = "".concat(apiUrlObject.path).concat(urlObject.path);
  }

  if (!config.REQUIRE_ACCESS_TOKEN) {
    return formatUrl(urlObject);
  }

  accessToken = accessToken || config.ACCESS_TOKEN;

  if (!accessToken) {
    throw new Error('An API access token is required');
  }

  if (accessToken[0] === 's') {
    throw new Error('Use a public access token (pk.*), not a secret access token (sk.*).');
  }

  urlObject.params = urlObject.params.filter(function (d) {
    return d.indexOf('access_token') === -1;
  });
  urlObject.params.push("access_token=".concat(accessToken));
  return formatUrl(urlObject);
}

function isMapboxURL(url) {
  return url.indexOf('mapbox:') === 0;
}

function parseUrl(url) {
  var parts = url.match(urlRe);

  if (!parts) {
    throw new Error('Unable to parse URL object');
  }

  return {
    protocol: parts[1],
    authority: parts[2],
    path: parts[3] || '/',
    params: parts[4] ? parts[4].split('&') : []
  };
}

function normalizeSpriteURL(url, format, extension, accessToken) {
  var urlObject = parseUrl(url);

  if (!isMapboxURL(url)) {
    urlObject.path += "".concat(format).concat(extension);
    return formatUrl(urlObject);
  }

  urlObject.path = "/styles/v1".concat(urlObject.path, "/sprite").concat(format).concat(extension);
  return makeAPIURL(urlObject, accessToken);
}

function normalizeSourceURL(url, accessToken) {
  if (!isMapboxURL(url)) {
    return url;
  }

  var urlObject = parseUrl(url);
  urlObject.path = "/v4/".concat(urlObject.authority, ".json");
  urlObject.params.push('secure');
  return makeAPIURL(urlObject, accessToken);
}

function normalizeStyleURL(url, accessToken) {
  if (!isMapboxURL(url)) {
    return url;
  }

  var urlObject = parseUrl(url);
  urlObject.path = "/styles/v1".concat(urlObject.path);
  return makeAPIURL(urlObject, accessToken);
}

var _default = {
  normalizeStyleURL: normalizeStyleURL,
  normalizeSourceURL: normalizeSourceURL,
  normalizeSpriteURL: normalizeSpriteURL
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/PntsParser.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/PntsParser.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Utf8Decoder = _interopRequireDefault(__webpack_require__(/*! ../Utils/Utf8Decoder */ "./node_modules/itowns/lib/Utils/Utf8Decoder.js"));

var _C3DTBatchTable = _interopRequireDefault(__webpack_require__(/*! ../Core/3DTiles/C3DTBatchTable */ "./node_modules/itowns/lib/Core/3DTiles/C3DTBatchTable.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var _default = {
  /** @module PntsParser */

  /** Parse pnts buffer and extract THREE.Points and batch table
   * @function parse
   * @param {ArrayBuffer} buffer - the pnts buffer.
   * @param {Object} registeredExtensions - 3D Tiles extensions registered
   * in the layer
   * @return {Promise} - a promise that resolves with an object containig a THREE.Points (point) and a batch table (batchTable).
   *
   */
  parse: function (buffer, registeredExtensions) {
    if (!buffer) {
      throw new Error('No array buffer provided.');
    }

    var view = new DataView(buffer);
    var byteOffset = 0;
    var pntsHeader = {};
    var batchTable = {};
    var point = {}; // Magic type is unsigned char [4]

    pntsHeader.magic = _Utf8Decoder["default"].decode(new Uint8Array(buffer, byteOffset, 4));
    byteOffset += 4;

    if (pntsHeader.magic) {
      // Version, byteLength, batchTableJSONByteLength, batchTableBinaryByteLength and batchTable types are uint32
      pntsHeader.version = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      pntsHeader.byteLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      pntsHeader.FTJSONLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      pntsHeader.FTBinaryLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      pntsHeader.BTJSONLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT;
      pntsHeader.BTBinaryLength = view.getUint32(byteOffset, true);
      byteOffset += Uint32Array.BYTES_PER_ELEMENT; // feature table

      var FTJSON = {};

      if (pntsHeader.FTJSONLength > 0) {
        var sizeBegin = byteOffset;
        var jsonBuffer = buffer.slice(sizeBegin, pntsHeader.FTJSONLength + sizeBegin);

        var content = _Utf8Decoder["default"].decode(new Uint8Array(jsonBuffer));

        FTJSON = JSON.parse(content);
      } // binary table


      if (pntsHeader.FTBinaryLength > 0) {
        point = parseFeatureBinary(buffer, byteOffset, pntsHeader.FTJSONLength);
      } // batch table


      if (pntsHeader.BTJSONLength > 0) {
        // parse batch table
        var _sizeBegin = byteOffset + pntsHeader.FTJSONLength + pntsHeader.FTBinaryLength;

        var BTBuffer = buffer.slice(_sizeBegin, pntsHeader.BTJSONLength + _sizeBegin);
        batchTable = new _C3DTBatchTable["default"](BTBuffer, pntsHeader.BTBinaryLength, FTJSON.BATCH_LENGTH, registeredExtensions);
      }

      var pnts = {
        point: point,
        batchTable: batchTable
      };
      return Promise.resolve(pnts);
    } else {
      throw new Error('Invalid pnts file.');
    }
  }
};
exports["default"] = _default;

function parseFeatureBinary(array, byteOffset, FTJSONLength) {
  // Init geometry
  var geometry = new THREE.BufferGeometry(); // init Array feature binary

  var subArrayJson = _Utf8Decoder["default"].decode(new Uint8Array(array, byteOffset, FTJSONLength));

  var parseJSON = JSON.parse(subArrayJson);
  var lengthFeature;

  if (parseJSON.POINTS_LENGTH) {
    lengthFeature = parseJSON.POINTS_LENGTH;
  }

  if (parseJSON.POSITION) {
    var byteOffsetPos = parseJSON.POSITION.byteOffset + subArrayJson.length + byteOffset;
    var positionArray = new Float32Array(array, byteOffsetPos, lengthFeature * 3);
    geometry.setAttribute('position', new THREE.BufferAttribute(positionArray, 3));
  }

  if (parseJSON.RGB) {
    var byteOffsetCol = parseJSON.RGB.byteOffset + subArrayJson.length + byteOffset;
    var colorArray = new Uint8Array(array, byteOffsetCol, lengthFeature * 3);
    geometry.setAttribute('color', new THREE.BufferAttribute(colorArray, 3, true));
  }

  if (parseJSON.POSITION_QUANTIZED) {
    throw new Error('For pnts loader, POSITION_QUANTIZED: not yet managed');
  }

  if (parseJSON.RGBA) {
    throw new Error('For pnts loader, RGBA: not yet managed');
  }

  if (parseJSON.RGB565) {
    throw new Error('For pnts loader, RGB565: not yet managed');
  }

  if (parseJSON.NORMAL) {
    throw new Error('For pnts loader, NORMAL: not yet managed');
  }

  if (parseJSON.NORMAL_OCT16P) {
    throw new Error('For pnts loader, NORMAL_OCT16P: not yet managed');
  }

  if (parseJSON.BATCH_ID) {
    throw new Error('For pnts loader, BATCH_ID: not yet managed');
  } // Add RTC feature


  var offset = parseJSON.RTC_CENTER ? new THREE.Vector3().fromArray(parseJSON.RTC_CENTER) : undefined;
  return {
    geometry: geometry,
    offset: offset
  };
}

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/PotreeBinParser.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/PotreeBinParser.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

// See the different constants holding ordinal, name, numElements, byteSize in PointAttributes.cpp in PotreeConverter
// elementByteSize is byteSize / numElements
var POINT_ATTTRIBUTES = {
  POSITION_CARTESIAN: {
    numElements: 3,
    arrayType: Float32Array,
    attributeName: 'position'
  },
  COLOR_PACKED: {
    numElements: 4,
    arrayType: Uint8Array,
    attributeName: 'color',
    normalized: true
  },
  INTENSITY: {
    numElements: 1,
    numByte: 2,
    // using Float32Array because Float16Array doesn't exist
    arrayType: Uint16Array,
    attributeName: 'intensity',
    normalized: true
  },
  CLASSIFICATION: {
    numElements: 1,
    arrayType: Uint8Array,
    attributeName: 'classification',
    normalized: true
  },
  // Note: at the time of writing, PotreeConverter will only generate normals in Oct16 format
  // see PotreeConverter.cpp:121
  // we keep all the historical value to still supports old conversion
  NORMAL_SPHEREMAPPED: {
    numElements: 2,
    arrayType: Uint8Array,
    attributeName: 'sphereMappedNormal'
  },
  // see https://web.archive.org/web/20150303053317/http://lgdv.cs.fau.de/get/1602
  NORMAL_OCT16: {
    numElements: 2,
    arrayType: Uint8Array,
    attributeName: 'oct16Normal'
  },
  NORMAL: {
    numElements: 3,
    arrayType: Float32Array,
    attributeName: 'normal'
  }
};

var _loop = function () {
  var potreeName = _Object$keys[_i];
  var attr = POINT_ATTTRIBUTES[potreeName];
  attr.potreeName = potreeName;
  attr.numByte = attr.numByte || attr.arrayType.BYTES_PER_ELEMENT;
  attr.byteSize = attr.numElements * attr.numByte;
  attr.normalized = attr.normalized || false; // chrome is known to perform badly when we call a method without respecting its arity

  var fnName = "getUint".concat(attr.numByte * 8);
  attr.getValue = attr.numByte === 1 ? function (view, offset) {
    return view[fnName](offset);
  } : function (view, offset) {
    return view[fnName](offset, true);
  };
};

for (var _i = 0, _Object$keys = Object.keys(POINT_ATTTRIBUTES); _i < _Object$keys.length; _i++) {
  _loop();
}

var _default = {
  /** @module PotreeBinParser */

  /** Parse .bin PotreeConverter format and convert to a THREE.BufferGeometry
   * @function parse
   * @param {ArrayBuffer} buffer - the bin buffer.
   * @param {Object} options
   * @param {string[]} options.in.pointAttributes - the point attributes information contained in cloud.js
   * @return {Promise} - a promise that resolves with a THREE.BufferGeometry.
   *
   */
  parse: function (buffer, options) {
    if (!buffer) {
      throw new Error('No array buffer provided.');
    }

    var view = new DataView(buffer); // Format: X1,Y1,Z1,R1,G1,B1,A1,[...],XN,YN,ZN,RN,GN,BN,AN

    var pointByteSize = 0;

    var _iterator = _createForOfIteratorHelper(options["in"].pointAttributes),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var potreeName = _step.value;
        pointByteSize += POINT_ATTTRIBUTES[potreeName].byteSize;
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }

    var numPoints = Math.floor(buffer.byteLength / pointByteSize);
    var geometry = new THREE.BufferGeometry();
    var elemOffset = 0;
    var attrOffset = 0;

    var _iterator2 = _createForOfIteratorHelper(options["in"].pointAttributes),
        _step2;

    try {
      for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
        var _potreeName = _step2.value;
        var attr = POINT_ATTTRIBUTES[_potreeName];
        var arrayLength = attr.numElements * numPoints;
        var array = new attr.arrayType(arrayLength);

        for (var arrayOffset = 0; arrayOffset < arrayLength; arrayOffset += attr.numElements) {
          for (var elemIdx = 0; elemIdx < attr.numElements; elemIdx++) {
            array[arrayOffset + elemIdx] = attr.getValue(view, attrOffset + elemIdx * attr.numByte);
          }

          attrOffset += pointByteSize;
        }

        elemOffset += attr.byteSize;
        attrOffset = elemOffset;
        geometry.setAttribute(attr.attributeName, new THREE.BufferAttribute(array, attr.numElements, attr.normalized));
      }
    } catch (err) {
      _iterator2.e(err);
    } finally {
      _iterator2.f();
    }

    geometry.computeBoundingBox();
    return Promise.resolve(geometry);
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/PotreeCinParser.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/PotreeCinParser.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var _default = {
  /** @module PotreeCinParser */

  /** Parse .cin PotreeConverter format (see {@link https://github.com/peppsac/PotreeConverter/tree/custom_bin}) and convert to a THREE.BufferGeometry
   * @function parse
   * @param {ArrayBuffer} buffer - the cin buffer.
   * @return {Promise} - a promise that resolves with a THREE.BufferGeometry.
   *
   */
  parse: function (buffer) {
    if (!buffer) {
      throw new Error('No array buffer provided.');
    } // Format: MinX,MinY,MinZ,MaxX,MaxY,MaxZ,X1,Y1,Z1,[...],XN,YN,ZN,R1,G1,B1,A1,[...],RN,GN,BN,AN


    var view = new DataView(buffer, 0, 6 * 4);
    var min = new THREE.Vector3(view.getFloat32(0, true), view.getFloat32(4, true), view.getFloat32(8, true));
    var max = new THREE.Vector3(view.getFloat32(12, true), view.getFloat32(16, true), view.getFloat32(20, true));
    var box = new THREE.Box3(min, max);
    var numPoints = Math.floor((buffer.byteLength - 24) / 16);
    var positions = new Float32Array(buffer, 24, 3 * numPoints);
    var colors = new Uint8Array(buffer, 24 + 3 * 4 * numPoints, 4 * numPoints);
    var geometry = new THREE.BufferGeometry();
    geometry.setAttribute('position', new THREE.BufferAttribute(positions, 3));
    geometry.setAttribute('color', new THREE.BufferAttribute(colors, 4, true));
    geometry.boundingBox = box;
    return Promise.resolve(geometry);
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/ShapefileParser.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/ShapefileParser.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _proj = _interopRequireDefault(__webpack_require__(/*! proj4 */ "./node_modules/proj4/lib/index.js"));

var _shpjs = _interopRequireDefault(__webpack_require__(/*! shpjs */ "./node_modules/shpjs/lib/index.js"));

var _GeoJsonParser = _interopRequireDefault(__webpack_require__(/*! ./GeoJsonParser */ "./node_modules/itowns/lib/Parser/GeoJsonParser.js"));

var _Undeprecator = __webpack_require__(/*! ../Core/Deprecated/Undeprecator */ "./node_modules/itowns/lib/Core/Deprecated/Undeprecator.js");

/**
 * The ShapefileParser module provides a [parse]{@link
 * module:ShapefileParser.parse} method that takes a bunch of files constituing
 * a shapefile in and gives an object formateted for iTowns, containing all
 * necessary informations to display this shapefile.
 *
 * It uses the [shpjs]{@link https://www.npmjs.com/package/shpjs} library to
 * parse all the files.
 *
 * @example
 * // Load all the necessary files for a shapefile, parse them and
 * // display them using a FileSource.
 * Promise.all([
 *     Fetcher.arrayBuffer('shapefile.shp'),
 *     Fetcher.arrayBuffer('shapefile.dbf'),
 *     Fetcher.arrayBuffer('shapefile.shx'),
 *     Fetcher.text('shapefile.prj'),
 * ]).then(function _(res) {
 *     return ShapefileParser.parse({
 *         shp: res[0],
 *         dbf: res[1],
 *         shx: res[2],
 *         prj: res[3],
 *     }, {
 *            in: {
 *              crs: 'EPSG:4326',
 *         },
 *         out: {
 *             crs: view.tileLayer.extent.crs,
 *         }
 *     });
 * }).then(function _(geojson) {
 *     var source = new FileSource({ features: geojson });
 *     var layer = new ColorLayer('velib', { source  });
 *     view.addLayer(layer);
 * });
 *
 *
 * @module ShapefileParser
 */
var _default = {
  /**
   * Parse a bunch of Shapefile files and return a [FeatureCollection]{@link
   * module:GeoJsonParser~FeatureCollection}.
   *
   * @param {Object} data - All the data that can be specified in a shapefile.
   * @param {ArrayBuffer} data.shp - Data from the shapefile itself,
   * containing the feature geometry itself.
   * @param {ArrayBuffer} data.shx - A positional index of the feature
   * geometry.
   * @param {ArrayBuffer} data.dbf - Columnar attributes for each shape, in
   * [dBase]{@link https://en.wikipedia.org/wiki/DBase} IV format.
   * @param {string} [data.prj] - The coordinate system and crs projection
   * information.
   * @param {ParsingOptions} [options]
   *
   * @return {Promise} A promise resolving with a {@link FeatureCollection}.
   */
  parse: function parse(data) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    options = (0, _Undeprecator.deprecatedParsingOptionsToNewOne)(options);
    var result; // If a zip is present, don't read anything else

    if (data.zip) {
      result = _shpjs["default"].parseZip(data.zip);
    } else if (data.shp && data.shx && data.dbf) {
      result = Promise.all([_shpjs["default"].parseShp(data.shp, data.prj), _shpjs["default"].parseDbf(data.dbf)]).then(_shpjs["default"].combine);
    }

    options["in"] = options["in"] || {};
    options["in"].crs = data.prj ? (0, _proj["default"])(data.prj).oProj.datumName : options["in"].crs;
    return Promise.resolve(result).then(function (res) {
      return _GeoJsonParser["default"].parse(res, options);
    });
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/VectorTileParser.js":
/*!************************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/VectorTileParser.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _three = __webpack_require__(/*! three */ "./node_modules/three/build/three.cjs");

var _pbf = _interopRequireDefault(__webpack_require__(/*! pbf */ "./node_modules/pbf/index.js"));

var _vectorTile = __webpack_require__(/*! @mapbox/vector-tile */ "./node_modules/@mapbox/vector-tile/index.js");

var _Extent = __webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js");

var _Feature = __webpack_require__(/*! ../Core/Feature */ "./node_modules/itowns/lib/Core/Feature.js");

var _Undeprecator = __webpack_require__(/*! ../Core/Deprecated/Undeprecator */ "./node_modules/itowns/lib/Core/Deprecated/Undeprecator.js");

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

var worldDimension3857 = _Extent.globalExtentTMS.get('EPSG:3857').planarDimensions();

var globalExtent = new _three.Vector3(worldDimension3857.x, worldDimension3857.y, 1);
var lastPoint = new _three.Vector2();
var firstPoint = new _three.Vector2(); // Classify option, it allows to classify a full polygon and its holes.
// Each polygon with its holes are in one FeatureGeometry.
// A polygon is determined by its clockwise direction and the holes are in the opposite direction.
// Clockwise direction is determined by Shoelace formula https://en.wikipedia.org/wiki/Shoelace_formula
// Draw polygon with canvas doesn't need to classify however it is necessary for meshs.

function vtFeatureToFeatureGeometry(vtFeature, feature) {
  var classify = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  var geometry = feature.bindNewGeometry();
  var isPolygon = feature.type === _Feature.FEATURE_TYPES.POLYGON;
  classify = classify && isPolygon;
  geometry.properties = vtFeature.properties;
  var pbf = vtFeature._pbf;
  pbf.pos = vtFeature._geometry;
  var end = pbf.readVarint() + pbf.pos;
  var cmd = 1;
  var length = 0;
  var x = 0;
  var y = 0;
  var count = 0;
  var sum = 0;

  while (pbf.pos < end) {
    if (length <= 0) {
      var cmdLen = pbf.readVarint();
      cmd = cmdLen & 0x7;
      length = cmdLen >> 3;
    }

    length--;

    if (cmd === 1 || cmd === 2) {
      x += pbf.readSVarint();
      y += pbf.readSVarint();

      if (cmd === 1) {
        if (count) {
          if (classify && sum > 0 && geometry.indices.length > 0) {
            feature.updateExtent(geometry);
            geometry = feature.bindNewGeometry();
            geometry.properties = vtFeature.properties;
          }

          geometry.closeSubGeometry(count, feature);
          geometry.getLastSubGeometry().ccw = sum < 0;
        }

        count = 0;
        sum = 0;
      }

      count++;
      geometry.pushCoordinatesValues(feature, x, y);

      if (count == 1) {
        firstPoint.set(x, y);
        lastPoint.set(x, y);
      } else if (isPolygon && count > 1) {
        sum += (lastPoint.x - x) * (lastPoint.y + y);
        lastPoint.set(x, y);
      }
    } else if (cmd === 7) {
      if (count) {
        count++;
        geometry.pushCoordinatesValues(feature, firstPoint.x, firstPoint.y);

        if (isPolygon) {
          sum += (lastPoint.x - firstPoint.x) * (lastPoint.y + firstPoint.y);
        }
      }
    } else {
      throw new Error("unknown command ".concat(cmd));
    }
  }

  if (count) {
    if (classify && sum > 0 && geometry.indices.length > 0) {
      feature.updateExtent(geometry);
      geometry = feature.bindNewGeometry();
      geometry.properties = vtFeature.properties;
    }

    geometry.closeSubGeometry(count, feature);
    geometry.getLastSubGeometry().ccw = sum < 0;
  }

  feature.updateExtent(geometry);
}

function readPBF(file, options) {
  options.out = options.out || {};
  var vectorTile = new _vectorTile.VectorTile(new _pbf["default"](file));
  var sourceLayers = Object.keys(vectorTile.layers);

  if (sourceLayers.length < 1) {
    return;
  } // x,y,z tile coordinates


  var x = file.extent.col;
  var z = file.extent.zoom; // We need to move from TMS to Google/Bing/OSM coordinates
  // https://alastaira.wordpress.com/2011/07/06/converting-tms-tile-coordinates-to-googlebingosm-tile-coordinates/
  // Only if the layer.origin is top

  var y = options["in"].isInverted ? file.extent.row : (1 << z) - file.extent.row - 1;
  var collection = new _Feature.FeatureCollection(options.out);
  var vFeature = vectorTile.layers[sourceLayers[0]]; // TODO: verify if size is correct because is computed with only one feature (vFeature).

  var size = vFeature.extent * Math.pow(2, z);
  var center = -0.5 * size;
  collection.scale.set(globalExtent.x / size, -globalExtent.y / size, 1);
  collection.position.set(vFeature.extent * x + center, vFeature.extent * y + center, 0).multiply(collection.scale);
  collection.updateMatrixWorld();
  sourceLayers.forEach(function (layer_id) {
    if (!options["in"].layers[layer_id]) {
      return;
    }

    var sourceLayer = vectorTile.layers[layer_id];

    var _loop = function (i) {
      var vtFeature = sourceLayer.feature(i);
      var layers = options["in"].layers[layer_id].filter(function (l) {
        return l.filterExpression.filter({
          zoom: z
        }, vtFeature) && z >= l.zoom.min && z < l.zoom.max;
      });
      var feature = void 0;

      var _iterator = _createForOfIteratorHelper(layers),
          _step;

      try {
        var _loop2 = function () {
          var layer = _step.value;

          if (!feature) {
            feature = collection.requestFeatureById(layer.id, vtFeature.type - 1);
            feature.id = layer.id;
            feature.order = layer.order;
            feature.style = options["in"].styles[feature.id];
            vtFeatureToFeatureGeometry(vtFeature, feature);
          } else if (!collection.features.find(function (f) {
            return f.id === layer.id;
          })) {
            feature = collection.newFeatureByReference(feature);
            feature.id = layer.id;
            feature.order = layer.order;
            feature.style = options["in"].styles[feature.id];
          }
        };

        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          _loop2();
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }
    };

    for (var i = sourceLayer.length - 1; i >= 0; i--) {
      _loop(i);
    }
  });
  collection.removeEmptyFeature(); // TODO Some vector tiles are already sorted

  collection.features.sort(function (a, b) {
    return a.order - b.order;
  }); // TODO verify if is needed to updateExtent for previous features.

  collection.updateExtent();
  collection.extent = file.extent;
  collection.isInverted = options["in"].isInverted;
  return Promise.resolve(collection);
}
/**
 * @module VectorTileParser
 */


var _default = {
  /**
   * Parse a vector tile file and return a [Feature]{@link module:GeoJsonParser.Feature}
   * or an array of Features. While multiple formats of vector tile are
   * available, the only one supported for the moment is the
   * [Mapbox Vector Tile]{@link https://www.mapbox.com/vector-tiles/specification/}.
   *
   * @param {ArrayBuffer} file - The vector tile file to parse.
   *
   * @param {ParsingOptions} options - Options controlling the parsing {@link ParsingOptions}.
   *
   * @param {InformationsData} options.in - Object containing all styles,
   * layers and informations data, see {@link InformationsData}.
   *
   * @param {Object} options.in.Styles - Object containing subobject with
   * informations on a specific style layer. Styles available is by `layer.id` and by zoom.
   *
   * @param {Object} options.in.layers - Object containing subobject with
   *
   * @param {FeatureBuildingOptions} options.out - options indicates how the features should be built,
   * see {@link FeatureBuildingOptions}.
   *
   * @return {Promise} A Promise resolving with a Feature or an array a
   * Features.
   */
  parse: function parse(file, options) {
    options = (0, _Undeprecator.deprecatedParsingOptionsToNewOne)(options);
    return Promise.resolve(readPBF(file, options));
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/XbilParser.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/XbilParser.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.checkNodeElevationTextureValidity = checkNodeElevationTextureValidity;
exports.computeMinMaxElevation = computeMinMaxElevation;
exports.insertSignificantValuesFromParent = insertSignificantValuesFromParent;

var _toConsumableArray2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/toConsumableArray */ "./node_modules/@babel/runtime/helpers/toConsumableArray.js"));

var _DEMUtils = __webpack_require__(/*! ../Utils/DEMUtils */ "./node_modules/itowns/lib/Utils/DEMUtils.js");

function minMax4Corners(texture, pitch, noDataValue) {
  var u = pitch.x;
  var v = pitch.y;
  var w = pitch.z;
  var z = [(0, _DEMUtils.readTextureValueWithBilinearFiltering)({
    noDataValue: noDataValue
  }, texture, u, v), (0, _DEMUtils.readTextureValueWithBilinearFiltering)({
    noDataValue: noDataValue
  }, texture, u + w, v), (0, _DEMUtils.readTextureValueWithBilinearFiltering)({
    noDataValue: noDataValue
  }, texture, u + w, v + w), (0, _DEMUtils.readTextureValueWithBilinearFiltering)({
    noDataValue: noDataValue
  }, texture, u, v + w)].filter(function (v) {
    return v != undefined && v > -10;
  });

  if (z.length) {
    return {
      min: Math.min.apply(Math, (0, _toConsumableArray2["default"])(z)),
      max: Math.max.apply(Math, (0, _toConsumableArray2["default"])(z))
    };
  }
}
/**
  * Calculates the minimum maximum texture elevation with xbil data
  *
  * @param      {THREE.Texture}  texture       The texture to parse
  * @param      {THREE.Vector4}  pitch  The pitch,  restrict zone to parse
 * @param      {number}  noDataValue  No data value
  * @return     {Object}  The minimum maximum elevation.
  */


function computeMinMaxElevation(texture, pitch, noDataValue) {
  var _texture$image = texture.image,
      width = _texture$image.width,
      height = _texture$image.height,
      data = _texture$image.data;

  if (!data) {
    // Return null values means there's no elevation values.
    // They can't be determined.
    // Don't return 0 because the result will be wrong
    return {
      min: null,
      max: null
    };
  } // compute extact minimum and maximum elvation on 4 corners texture.


  var _ref = minMax4Corners(texture, pitch, noDataValue) || {
    max: -Infinity,
    min: Infinity
  },
      min = _ref.min,
      max = _ref.max;

  var sizeX = Math.floor(pitch.z * width);

  if (sizeX > 2) {
    var sizeY = Math.floor(pitch.z * height);
    var xs = Math.floor(pitch.x * width);
    var ys = Math.floor(pitch.y * height);
    var inc = Math.max(Math.floor(sizeX / 32), 2);

    for (var y = ys; y < ys + sizeY; y += inc) {
      var pit = y * (width || 0);
      var x = pit + xs;

      var _limX = x + sizeX;

      for (x; x < _limX; x += inc) {
        var val = data[x];

        if (val > -10 && val != noDataValue) {
          max = Math.max(max, val);
          min = Math.min(min, val);
        }
      }
    }
  }

  if (max === -Infinity || min === Infinity) {
    // Return null values means the elevation values are incoherent
    // They can't be determined.
    // Don't return 0, -Infinity or Infinity because the result will be wrong
    return {
      min: null,
      max: null
    };
  } else {
    return {
      min: min,
      max: max
    };
  }
} // We check if the elevation texture has some significant values through corners


function checkNodeElevationTextureValidity(data, noDataValue) {
  var l = data.length;
  return data[0] > noDataValue && data[l - 1] > noDataValue && data[Math.sqrt(l) - 1] > noDataValue && data[l - Math.sqrt(l)] > noDataValue;
}

function getIndiceWithPitch(i, pitch, w) {
  // Return corresponding indice in parent tile using pitch
  // normalized
  var currentY = Math.floor(i / w) / w; // normalized

  var newX = pitch.x + i % w / w * pitch.z;
  var newY = pitch.y + currentY * pitch.w;
  var newIndice = Math.floor(newY * w) * w + Math.floor(newX * w);
  return newIndice;
} // This function replaces noDataValue by significant values from parent texture


function insertSignificantValuesFromParent(data, dataParent, noDataValue, pitch) {
  for (var i = 0, l = data.length; i < l; ++i) {
    if (data[i] === noDataValue) {
      data[i] = dataParent[getIndiceWithPitch(i, pitch, 256)];
    }
  }
}

/***/ }),

/***/ "./node_modules/itowns/lib/Parser/deprecated/LegacyGLTFLoader.js":
/*!***********************************************************************!*\
  !*** ./node_modules/itowns/lib/Parser/deprecated/LegacyGLTFLoader.js ***!
  \***********************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var threeExamples = {};
/**
 * @author Rich Tibbett / https://github.com/richtr
 * @author mrdoob / http://mrdoob.com/
 * @author Tony Parisi / http://www.tonyparisi.com/
 * @author Takahiro / https://github.com/takahirox
 */

threeExamples.LegacyGLTFLoader = function () {
  var LegacyGLTFLoader = /*#__PURE__*/function (_THREE$Loader) {
    (0, _inherits2["default"])(LegacyGLTFLoader, _THREE$Loader);

    var _super = _createSuper(LegacyGLTFLoader);

    function LegacyGLTFLoader(manager) {
      (0, _classCallCheck2["default"])(this, LegacyGLTFLoader);
      return _super.call(this, manager);
    }

    (0, _createClass2["default"])(LegacyGLTFLoader, [{
      key: "load",
      value: function load(url, onLoad, onProgress, onError) {
        var scope = this;
        var resourcePath;

        if (this.resourcePath !== '') {
          resourcePath = this.resourcePath;
        } else if (this.path !== '') {
          resourcePath = this.path;
        } else {
          resourcePath = THREE.LoaderUtils.extractUrlBase(url);
        }

        var loader = new THREE.FileLoader(scope.manager);
        loader.setPath(this.path);
        loader.setResponseType('arraybuffer');
        loader.load(url, function (data) {
          scope.parse(data, resourcePath, onLoad);
        }, onProgress, onError);
      }
    }, {
      key: "parse",
      value: function parse(data, path, callback) {
        var content;
        var extensions = {};
        var magic = THREE.LoaderUtils.decodeText(new Uint8Array(data, 0, 4));

        if (magic === BINARY_EXTENSION_HEADER_DEFAULTS.magic) {
          extensions[EXTENSIONS.KHR_BINARY_GLTF] = new GLTFBinaryExtension(data);
          content = extensions[EXTENSIONS.KHR_BINARY_GLTF].content;
        } else {
          content = THREE.LoaderUtils.decodeText(new Uint8Array(data));
        }

        var json = JSON.parse(content);

        if (json.extensionsUsed && json.extensionsUsed.indexOf(EXTENSIONS.KHR_MATERIALS_COMMON) >= 0) {
          extensions[EXTENSIONS.KHR_MATERIALS_COMMON] = new GLTFMaterialsCommonExtension(json);
        }

        var parser = new GLTFParser(json, extensions, {
          crossOrigin: this.crossOrigin,
          manager: this.manager,
          path: path || this.resourcePath || ''
        });
        parser.parse(function (scene, scenes, cameras, animations) {
          callback({
            "scene": scene,
            "scenes": scenes,
            "cameras": cameras,
            "animations": animations
          });
        });
      }
    }]);
    return LegacyGLTFLoader;
  }(THREE.Loader);
  /* GLTFREGISTRY */


  function GLTFRegistry() {
    var objects = {};
    return {
      get: function get(key) {
        return objects[key];
      },
      add: function add(key, object) {
        objects[key] = object;
      },
      remove: function remove(key) {
        delete objects[key];
      },
      removeAll: function removeAll() {
        objects = {};
      },
      update: function update(scene, camera) {
        for (var name in objects) {
          var object = objects[name];

          if (object.update) {
            object.update(scene, camera);
          }
        }
      }
    };
  }
  /* GLTFSHADERS */


  LegacyGLTFLoader.Shaders = {
    update: function update() {
      console.warn('threeExamples.LegacyGLTFLoader.Shaders has been deprecated, and now updates automatically.');
    }
  };
  /* GLTFSHADER */

  function GLTFShader(targetNode, allNodes) {
    var boundUniforms = {}; // bind each uniform to its source node

    var uniforms = targetNode.material.uniforms;

    for (var uniformId in uniforms) {
      var uniform = uniforms[uniformId];

      if (uniform.semantic) {
        var sourceNodeRef = uniform.node;
        var sourceNode = targetNode;

        if (sourceNodeRef) {
          sourceNode = allNodes[sourceNodeRef];
        }

        boundUniforms[uniformId] = {
          semantic: uniform.semantic,
          sourceNode: sourceNode,
          targetNode: targetNode,
          uniform: uniform
        };
      }
    }

    this.boundUniforms = boundUniforms;
    this._m4 = new THREE.Matrix4();
  } // Update - update all the uniform values


  GLTFShader.prototype.update = function (scene, camera) {
    var boundUniforms = this.boundUniforms;

    for (var name in boundUniforms) {
      var boundUniform = boundUniforms[name];

      switch (boundUniform.semantic) {
        case "MODELVIEW":
          var m4 = boundUniform.uniform.value;
          m4.multiplyMatrices(camera.matrixWorldInverse, boundUniform.sourceNode.matrixWorld);
          break;

        case "MODELVIEWINVERSETRANSPOSE":
          var m3 = boundUniform.uniform.value;

          this._m4.multiplyMatrices(camera.matrixWorldInverse, boundUniform.sourceNode.matrixWorld);

          m3.getNormalMatrix(this._m4);
          break;

        case "PROJECTION":
          var m4 = boundUniform.uniform.value;
          m4.copy(camera.projectionMatrix);
          break;

        case "JOINTMATRIX":
          var m4v = boundUniform.uniform.value;

          for (var mi = 0; mi < m4v.length; mi++) {
            // So it goes like this:
            // SkinnedMesh world matrix is already baked into MODELVIEW;
            // transform joints to local space,
            // then transform using joint's inverse
            m4v[mi].getInverse(boundUniform.sourceNode.matrixWorld).multiply(boundUniform.targetNode.skeleton.bones[mi].matrixWorld).multiply(boundUniform.targetNode.skeleton.boneInverses[mi]).multiply(boundUniform.targetNode.bindMatrix);
          }

          break;

        default:
          console.warn("Unhandled shader semantic: " + boundUniform.semantic);
          break;
      }
    }
  };
  /* ANIMATION */


  LegacyGLTFLoader.Animations = {
    update: function update() {
      console.warn('threeExamples.LegacyGLTFLoader.Animation has been deprecated. Use THREE.AnimationMixer instead.');
    }
  };
  /*********************************/

  /********** EXTENSIONS ***********/

  /*********************************/

  var EXTENSIONS = {
    KHR_BINARY_GLTF: 'KHR_binary_glTF',
    KHR_MATERIALS_COMMON: 'KHR_materials_common'
  };
  /* MATERIALS COMMON EXTENSION */

  function GLTFMaterialsCommonExtension(json) {
    this.name = EXTENSIONS.KHR_MATERIALS_COMMON;
    this.lights = {};
    var extension = json.extensions && json.extensions[EXTENSIONS.KHR_MATERIALS_COMMON] || {};
    var lights = extension.lights || {};

    for (var lightId in lights) {
      var light = lights[lightId];
      var lightNode;
      var lightParams = light[light.type];
      var color = new THREE.Color().fromArray(lightParams.color);

      switch (light.type) {
        case "directional":
          lightNode = new THREE.DirectionalLight(color);
          lightNode.position.set(0, 0, 1);
          break;

        case "point":
          lightNode = new THREE.PointLight(color);
          break;

        case "spot":
          lightNode = new THREE.SpotLight(color);
          lightNode.position.set(0, 0, 1);
          break;

        case "ambient":
          lightNode = new THREE.AmbientLight(color);
          break;
      }

      if (lightNode) {
        this.lights[lightId] = lightNode;
      }
    }
  }
  /* BINARY EXTENSION */


  var BINARY_EXTENSION_HEADER_DEFAULTS = {
    magic: 'glTF',
    version: 1,
    contentFormat: 0
  };
  var BINARY_EXTENSION_HEADER_LENGTH = 20;

  function GLTFBinaryExtension(data) {
    this.name = EXTENSIONS.KHR_BINARY_GLTF;
    var headerView = new DataView(data, 0, BINARY_EXTENSION_HEADER_LENGTH);
    var header = {
      magic: THREE.LoaderUtils.decodeText(new Uint8Array(data.slice(0, 4))),
      version: headerView.getUint32(4, true),
      length: headerView.getUint32(8, true),
      contentLength: headerView.getUint32(12, true),
      contentFormat: headerView.getUint32(16, true)
    };

    for (var key in BINARY_EXTENSION_HEADER_DEFAULTS) {
      var value = BINARY_EXTENSION_HEADER_DEFAULTS[key];

      if (header[key] !== value) {
        throw new Error('Unsupported glTF-Binary header: Expected "%s" to be "%s".', key, value);
      }
    }

    var contentArray = new Uint8Array(data, BINARY_EXTENSION_HEADER_LENGTH, header.contentLength);
    this.header = header;
    this.content = THREE.LoaderUtils.decodeText(contentArray);
    this.body = data.slice(BINARY_EXTENSION_HEADER_LENGTH + header.contentLength, header.length);
  }

  GLTFBinaryExtension.prototype.loadShader = function (shader, bufferViews) {
    var bufferView = bufferViews[shader.extensions[EXTENSIONS.KHR_BINARY_GLTF].bufferView];
    var array = new Uint8Array(bufferView);
    return THREE.LoaderUtils.decodeText(array);
  };
  /*********************************/

  /********** INTERNALS ************/

  /*********************************/

  /* CONSTANTS */


  var WEBGL_CONSTANTS = {
    FLOAT: 5126,
    //FLOAT_MAT2: 35674,
    FLOAT_MAT3: 35675,
    FLOAT_MAT4: 35676,
    FLOAT_VEC2: 35664,
    FLOAT_VEC3: 35665,
    FLOAT_VEC4: 35666,
    LINEAR: 9729,
    REPEAT: 10497,
    SAMPLER_2D: 35678,
    TRIANGLES: 4,
    LINES: 1,
    UNSIGNED_BYTE: 5121,
    UNSIGNED_SHORT: 5123,
    VERTEX_SHADER: 35633,
    FRAGMENT_SHADER: 35632
  };
  var WEBGL_TYPE = {
    5126: Number,
    //35674: THREE.Matrix2,
    35675: THREE.Matrix3,
    35676: THREE.Matrix4,
    35664: THREE.Vector2,
    35665: THREE.Vector3,
    35666: THREE.Vector4,
    35678: THREE.Texture
  };
  var WEBGL_COMPONENT_TYPES = {
    5120: Int8Array,
    5121: Uint8Array,
    5122: Int16Array,
    5123: Uint16Array,
    5125: Uint32Array,
    5126: Float32Array
  };
  var WEBGL_FILTERS = {
    9728: THREE.NearestFilter,
    9729: THREE.LinearFilter,
    9984: THREE.NearestMipmapNearestFilter,
    9985: THREE.LinearMipmapNearestFilter,
    9986: THREE.NearestMipmapLinearFilter,
    9987: THREE.LinearMipmapLinearFilter
  };
  var WEBGL_WRAPPINGS = {
    33071: THREE.ClampToEdgeWrapping,
    33648: THREE.MirroredRepeatWrapping,
    10497: THREE.RepeatWrapping
  };
  var WEBGL_TEXTURE_FORMATS = {
    6406: THREE.AlphaFormat,
    6407: THREE.RGBFormat,
    6408: THREE.RGBAFormat,
    6409: THREE.LuminanceFormat,
    6410: THREE.LuminanceAlphaFormat
  };
  var WEBGL_TEXTURE_DATATYPES = {
    5121: THREE.UnsignedByteType,
    32819: THREE.UnsignedShort4444Type,
    32820: THREE.UnsignedShort5551Type,
    33635: THREE.UnsignedShort5551Type
  };
  var WEBGL_SIDES = {
    1028: THREE.BackSide,
    // Culling front
    1029: THREE.FrontSide // Culling back
    //1032: THREE.NoSide   // Culling front and back, what to do?

  };
  var WEBGL_DEPTH_FUNCS = {
    512: THREE.NeverDepth,
    513: THREE.LessDepth,
    514: THREE.EqualDepth,
    515: THREE.LessEqualDepth,
    516: THREE.GreaterEqualDepth,
    517: THREE.NotEqualDepth,
    518: THREE.GreaterEqualDepth,
    519: THREE.AlwaysDepth
  };
  var WEBGL_BLEND_EQUATIONS = {
    32774: THREE.AddEquation,
    32778: THREE.SubtractEquation,
    32779: THREE.ReverseSubtractEquation
  };
  var WEBGL_BLEND_FUNCS = {
    0: THREE.ZeroFactor,
    1: THREE.OneFactor,
    768: THREE.SrcColorFactor,
    769: THREE.OneMinusSrcColorFactor,
    770: THREE.SrcAlphaFactor,
    771: THREE.OneMinusSrcAlphaFactor,
    772: THREE.DstAlphaFactor,
    773: THREE.OneMinusDstAlphaFactor,
    774: THREE.DstColorFactor,
    775: THREE.OneMinusDstColorFactor,
    776: THREE.SrcAlphaSaturateFactor // The followings are not supported by Three.js yet
    //32769: CONSTANT_COLOR,
    //32770: ONE_MINUS_CONSTANT_COLOR,
    //32771: CONSTANT_ALPHA,
    //32772: ONE_MINUS_CONSTANT_COLOR

  };
  var WEBGL_TYPE_SIZES = {
    'SCALAR': 1,
    'VEC2': 2,
    'VEC3': 3,
    'VEC4': 4,
    'MAT2': 4,
    'MAT3': 9,
    'MAT4': 16
  };
  var PATH_PROPERTIES = {
    scale: 'scale',
    translation: 'position',
    rotation: 'quaternion'
  };
  var INTERPOLATION = {
    LINEAR: THREE.InterpolateLinear,
    STEP: THREE.InterpolateDiscrete
  };
  var STATES_ENABLES = {
    2884: 'CULL_FACE',
    2929: 'DEPTH_TEST',
    3042: 'BLEND',
    3089: 'SCISSOR_TEST',
    32823: 'POLYGON_OFFSET_FILL',
    32926: 'SAMPLE_ALPHA_TO_COVERAGE'
  };
  /* UTILITY FUNCTIONS */

  function _each(object, callback, thisObj) {
    if (!object) {
      return Promise.resolve();
    }

    var results;
    var fns = [];

    if (Object.prototype.toString.call(object) === '[object Array]') {
      results = [];
      var length = object.length;

      for (var idx = 0; idx < length; idx++) {
        var value = callback.call(thisObj || this, object[idx], idx);

        if (value) {
          fns.push(value);

          if (value instanceof Promise) {
            value.then(function (key, value) {
              results[key] = value;
            }.bind(this, idx));
          } else {
            results[idx] = value;
          }
        }
      }
    } else {
      results = {};

      for (var key in object) {
        if (object.hasOwnProperty(key)) {
          var value = callback.call(thisObj || this, object[key], key);

          if (value) {
            fns.push(value);

            if (value instanceof Promise) {
              value.then(function (key, value) {
                results[key] = value;
              }.bind(this, key));
            } else {
              results[key] = value;
            }
          }
        }
      }
    }

    return Promise.all(fns).then(function () {
      return results;
    });
  }

  function resolveURL(url, path) {
    // Invalid URL
    if (typeof url !== 'string' || url === '') return ''; // Absolute URL http://,https://,//

    if (/^(https?:)?\/\//i.test(url)) {
      return url;
    } // Data URI


    if (/^data:.*,.*$/i.test(url)) {
      return url;
    } // Blob URL


    if (/^blob:.*$/i.test(url)) {
      return url;
    } // Relative URL


    return (path || '') + url;
  } // Three.js seems too dependent on attribute names so globally
  // replace those in the shader code


  function replaceTHREEShaderAttributes(shaderText, technique) {
    // Expected technique attributes
    var attributes = {};

    for (var attributeId in technique.attributes) {
      var pname = technique.attributes[attributeId];
      var param = technique.parameters[pname];
      var atype = param.type;
      var semantic = param.semantic;
      attributes[attributeId] = {
        type: atype,
        semantic: semantic
      };
    } // Figure out which attributes to change in technique


    var shaderParams = technique.parameters;
    var shaderAttributes = technique.attributes;
    var params = {};

    for (var attributeId in attributes) {
      var pname = shaderAttributes[attributeId];
      var shaderParam = shaderParams[pname];
      var semantic = shaderParam.semantic;

      if (semantic) {
        params[attributeId] = shaderParam;
      }
    }

    for (var pname in params) {
      var param = params[pname];
      var semantic = param.semantic;
      var regEx = new RegExp("\\b" + pname + "\\b", "g");

      switch (semantic) {
        case "POSITION":
          shaderText = shaderText.replace(regEx, 'position');
          break;

        case "NORMAL":
          shaderText = shaderText.replace(regEx, 'normal');
          break;

        case 'TEXCOORD_0':
        case 'TEXCOORD0':
        case 'TEXCOORD':
          shaderText = shaderText.replace(regEx, 'uv');
          break;

        case 'TEXCOORD_1':
          shaderText = shaderText.replace(regEx, 'uv2');
          break;

        case 'COLOR_0':
        case 'COLOR0':
        case 'COLOR':
          shaderText = shaderText.replace(regEx, 'color');
          break;

        case "WEIGHT":
          shaderText = shaderText.replace(regEx, 'skinWeight');
          break;

        case "JOINT":
          shaderText = shaderText.replace(regEx, 'skinIndex');
          break;
      }
    }

    return shaderText;
  }

  function createDefaultMaterial() {
    return new THREE.MeshPhongMaterial({
      color: 0x00000,
      emissive: 0x888888,
      specular: 0x000000,
      shininess: 0,
      transparent: false,
      depthTest: true,
      side: THREE.FrontSide
    });
  } // Deferred constructor for RawShaderMaterial types


  function DeferredShaderMaterial(params) {
    this.isDeferredShaderMaterial = true;
    this.params = params;
  }

  DeferredShaderMaterial.prototype.create = function () {
    var uniforms = THREE.UniformsUtils.clone(this.params.uniforms);

    for (var uniformId in this.params.uniforms) {
      var originalUniform = this.params.uniforms[uniformId];

      if (originalUniform.value instanceof THREE.Texture) {
        uniforms[uniformId].value = originalUniform.value;
        uniforms[uniformId].value.needsUpdate = true;
      }

      uniforms[uniformId].semantic = originalUniform.semantic;
      uniforms[uniformId].node = originalUniform.node;
    }

    this.params.uniforms = uniforms;
    return new THREE.RawShaderMaterial(this.params);
  };
  /* GLTF PARSER */


  function GLTFParser(json, extensions, options) {
    this.json = json || {};
    this.extensions = extensions || {};
    this.options = options || {}; // loader object cache

    this.cache = new GLTFRegistry();
  }

  GLTFParser.prototype._withDependencies = function (dependencies) {
    var _dependencies = {};

    for (var i = 0; i < dependencies.length; i++) {
      var dependency = dependencies[i];
      var fnName = "load" + dependency.charAt(0).toUpperCase() + dependency.slice(1);
      var cached = this.cache.get(dependency);

      if (cached !== undefined) {
        _dependencies[dependency] = cached;
      } else if (this[fnName]) {
        var fn = this[fnName]();
        this.cache.add(dependency, fn);
        _dependencies[dependency] = fn;
      }
    }

    return _each(_dependencies, function (dependency) {
      return dependency;
    });
  };

  GLTFParser.prototype.parse = function (callback) {
    var json = this.json; // Clear the loader cache

    this.cache.removeAll(); // Fire the callback on complete

    this._withDependencies(["scenes", "cameras", "animations"]).then(function (dependencies) {
      var scenes = [];

      for (var name in dependencies.scenes) {
        scenes.push(dependencies.scenes[name]);
      }

      var scene = json.scene !== undefined ? dependencies.scenes[json.scene] : scenes[0];
      var cameras = [];

      for (var name in dependencies.cameras) {
        var camera = dependencies.cameras[name];
        cameras.push(camera);
      }

      var animations = [];

      for (var name in dependencies.animations) {
        animations.push(dependencies.animations[name]);
      }

      callback(scene, scenes, cameras, animations);
    });
  };

  GLTFParser.prototype.loadShaders = function () {
    var json = this.json;
    var extensions = this.extensions;
    var options = this.options;
    return this._withDependencies(["bufferViews"]).then(function (dependencies) {
      return _each(json.shaders, function (shader) {
        if (shader.extensions && shader.extensions[EXTENSIONS.KHR_BINARY_GLTF]) {
          return extensions[EXTENSIONS.KHR_BINARY_GLTF].loadShader(shader, dependencies.bufferViews);
        }

        return new Promise(function (resolve) {
          var loader = new THREE.FileLoader(options.manager);
          loader.setResponseType('text');
          loader.load(resolveURL(shader.uri, options.path), function (shaderText) {
            resolve(shaderText);
          });
        });
      });
    });
  };

  GLTFParser.prototype.loadBuffers = function () {
    var json = this.json;
    var extensions = this.extensions;
    var options = this.options;
    return _each(json.buffers, function (buffer, name) {
      if (name === 'binary_glTF') {
        return extensions[EXTENSIONS.KHR_BINARY_GLTF].body;
      }

      if (buffer.type === 'arraybuffer' || buffer.type === undefined) {
        return new Promise(function (resolve) {
          var loader = new THREE.FileLoader(options.manager);
          loader.setResponseType('arraybuffer');
          loader.load(resolveURL(buffer.uri, options.path), function (buffer) {
            resolve(buffer);
          });
        });
      } else {
        console.warn('threeExamples.LegacyGLTFLoader: ' + buffer.type + ' buffer type is not supported');
      }
    });
  };

  GLTFParser.prototype.loadBufferViews = function () {
    var json = this.json;
    return this._withDependencies(["buffers"]).then(function (dependencies) {
      return _each(json.bufferViews, function (bufferView) {
        var arraybuffer = dependencies.buffers[bufferView.buffer];
        var byteLength = bufferView.byteLength !== undefined ? bufferView.byteLength : 0;
        return arraybuffer.slice(bufferView.byteOffset, bufferView.byteOffset + byteLength);
      });
    });
  };

  GLTFParser.prototype.loadAccessors = function () {
    var json = this.json;
    return this._withDependencies(["bufferViews"]).then(function (dependencies) {
      return _each(json.accessors, function (accessor) {
        var arraybuffer = dependencies.bufferViews[accessor.bufferView];
        var itemSize = WEBGL_TYPE_SIZES[accessor.type];
        var TypedArray = WEBGL_COMPONENT_TYPES[accessor.componentType]; // For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.

        var elementBytes = TypedArray.BYTES_PER_ELEMENT;

        // The buffer is not interleaved if the stride is the item size in bytes.
        if (accessor.byteStride && accessor.byteStride !== elementBytes * itemSize) {
          // Use the full buffer if it's interleaved.
          var array = new TypedArray(arraybuffer); // Integer parameters to IB/IBA are in array elements, not bytes.

          var ib = new THREE.InterleavedBuffer(array, accessor.byteStride / elementBytes);
          return new THREE.InterleavedBufferAttribute(ib, itemSize, accessor.byteOffset / elementBytes);
        } else {
          array = new TypedArray(arraybuffer, accessor.byteOffset, accessor.count * itemSize);
          return new THREE.BufferAttribute(array, itemSize);
        }
      });
    });
  };

  GLTFParser.prototype.loadTextures = function () {
    var json = this.json;
    var options = this.options;
    return this._withDependencies(["bufferViews"]).then(function (dependencies) {
      return _each(json.textures, function (texture) {
        if (texture.source) {
          return new Promise(function (resolve) {
            var source = json.images[texture.source];
            var sourceUri = source.uri;
            var isObjectURL = false;

            if (source.extensions && source.extensions[EXTENSIONS.KHR_BINARY_GLTF]) {
              var metadata = source.extensions[EXTENSIONS.KHR_BINARY_GLTF];
              var bufferView = dependencies.bufferViews[metadata.bufferView];
              var blob = new Blob([bufferView], {
                type: metadata.mimeType
              });
              sourceUri = URL.createObjectURL(blob);
              isObjectURL = true;
            }

            var textureLoader = options.manager.getHandler(sourceUri);

            if (textureLoader === null) {
              textureLoader = new THREE.TextureLoader(options.manager);
            }

            textureLoader.setCrossOrigin(options.crossOrigin);
            textureLoader.load(resolveURL(sourceUri, options.path), function (_texture) {
              if (isObjectURL) URL.revokeObjectURL(sourceUri);
              _texture.flipY = false;
              if (texture.name !== undefined) _texture.name = texture.name;
              _texture.format = texture.format !== undefined ? WEBGL_TEXTURE_FORMATS[texture.format] : THREE.RGBAFormat;

              if (texture.internalFormat !== undefined && _texture.format !== WEBGL_TEXTURE_FORMATS[texture.internalFormat]) {
                console.warn('threeExamples.LegacyGLTFLoader: Three.js doesn\'t support texture internalFormat which is different from texture format. ' + 'internalFormat will be forced to be the same value as format.');
              }

              _texture.type = texture.type !== undefined ? WEBGL_TEXTURE_DATATYPES[texture.type] : THREE.UnsignedByteType;

              if (texture.sampler) {
                var sampler = json.samplers[texture.sampler];
                _texture.magFilter = WEBGL_FILTERS[sampler.magFilter] || THREE.LinearFilter;
                _texture.minFilter = WEBGL_FILTERS[sampler.minFilter] || THREE.NearestMipmapLinearFilter;
                _texture.wrapS = WEBGL_WRAPPINGS[sampler.wrapS] || THREE.RepeatWrapping;
                _texture.wrapT = WEBGL_WRAPPINGS[sampler.wrapT] || THREE.RepeatWrapping;
              }

              resolve(_texture);
            }, undefined, function () {
              if (isObjectURL) URL.revokeObjectURL(sourceUri);
              resolve();
            });
          });
        }
      });
    });
  };

  GLTFParser.prototype.loadMaterials = function () {
    var json = this.json;
    return this._withDependencies(["shaders", "textures"]).then(function (dependencies) {
      return _each(json.materials, function (material) {
        var materialType;
        var materialValues = {};
        var materialParams = {};
        var khr_material;

        if (material.extensions && material.extensions[EXTENSIONS.KHR_MATERIALS_COMMON]) {
          khr_material = material.extensions[EXTENSIONS.KHR_MATERIALS_COMMON];
        }

        if (khr_material) {
          // don't copy over unused values to avoid material warning spam
          var keys = ['ambient', 'emission', 'transparent', 'transparency', 'doubleSided'];

          switch (khr_material.technique) {
            case 'BLINN':
            case 'PHONG':
              materialType = THREE.MeshPhongMaterial;
              keys.push('diffuse', 'specular', 'shininess');
              break;

            case 'LAMBERT':
              materialType = THREE.MeshLambertMaterial;
              keys.push('diffuse');
              break;

            case 'CONSTANT':
            default:
              materialType = THREE.MeshBasicMaterial;
              break;
          }

          keys.forEach(function (v) {
            if (khr_material.values[v] !== undefined) materialValues[v] = khr_material.values[v];
          });

          if (khr_material.doubleSided || materialValues.doubleSided) {
            materialParams.side = THREE.DoubleSide;
          }

          if (khr_material.transparent || materialValues.transparent) {
            materialParams.transparent = true;
            materialParams.opacity = materialValues.transparency !== undefined ? materialValues.transparency : 1;
          }
        } else if (material.technique === undefined) {
          materialType = THREE.MeshPhongMaterial;
          Object.assign(materialValues, material.values);
        } else {
          materialType = DeferredShaderMaterial;
          var technique = json.techniques[material.technique];
          materialParams.uniforms = {};
          var program = json.programs[technique.program];

          if (program) {
            materialParams.fragmentShader = dependencies.shaders[program.fragmentShader];

            if (!materialParams.fragmentShader) {
              console.warn("ERROR: Missing fragment shader definition:", program.fragmentShader);
              materialType = THREE.MeshPhongMaterial;
            }

            var vertexShader = dependencies.shaders[program.vertexShader];

            if (!vertexShader) {
              console.warn("ERROR: Missing vertex shader definition:", program.vertexShader);
              materialType = THREE.MeshPhongMaterial;
            } // IMPORTANT: FIX VERTEX SHADER ATTRIBUTE DEFINITIONS


            materialParams.vertexShader = replaceTHREEShaderAttributes(vertexShader, technique);
            var uniforms = technique.uniforms;

            for (var uniformId in uniforms) {
              var pname = uniforms[uniformId];
              var shaderParam = technique.parameters[pname];
              var ptype = shaderParam.type;

              if (WEBGL_TYPE[ptype]) {
                var pcount = shaderParam.count;
                var value;
                if (material.values !== undefined) value = material.values[pname];
                var uvalue = new WEBGL_TYPE[ptype]();
                var usemantic = shaderParam.semantic;
                var unode = shaderParam.node;

                switch (ptype) {
                  case WEBGL_CONSTANTS.FLOAT:
                    uvalue = shaderParam.value;

                    if (pname == "transparency") {
                      materialParams.transparent = true;
                    }

                    if (value !== undefined) {
                      uvalue = value;
                    }

                    break;

                  case WEBGL_CONSTANTS.FLOAT_VEC2:
                  case WEBGL_CONSTANTS.FLOAT_VEC3:
                  case WEBGL_CONSTANTS.FLOAT_VEC4:
                  case WEBGL_CONSTANTS.FLOAT_MAT3:
                    if (shaderParam && shaderParam.value) {
                      uvalue.fromArray(shaderParam.value);
                    }

                    if (value) {
                      uvalue.fromArray(value);
                    }

                    break;

                  case WEBGL_CONSTANTS.FLOAT_MAT2:
                    // what to do?
                    console.warn("FLOAT_MAT2 is not a supported uniform type");
                    break;

                  case WEBGL_CONSTANTS.FLOAT_MAT4:
                    if (pcount) {
                      uvalue = new Array(pcount);

                      for (var mi = 0; mi < pcount; mi++) {
                        uvalue[mi] = new WEBGL_TYPE[ptype]();
                      }

                      if (shaderParam && shaderParam.value) {
                        var m4v = shaderParam.value;
                        uvalue.fromArray(m4v);
                      }

                      if (value) {
                        uvalue.fromArray(value);
                      }
                    } else {
                      if (shaderParam && shaderParam.value) {
                        var m4 = shaderParam.value;
                        uvalue.fromArray(m4);
                      }

                      if (value) {
                        uvalue.fromArray(value);
                      }
                    }

                    break;

                  case WEBGL_CONSTANTS.SAMPLER_2D:
                    if (value !== undefined) {
                      uvalue = dependencies.textures[value];
                    } else if (shaderParam.value !== undefined) {
                      uvalue = dependencies.textures[shaderParam.value];
                    } else {
                      uvalue = null;
                    }

                    break;
                }

                materialParams.uniforms[uniformId] = {
                  value: uvalue,
                  semantic: usemantic,
                  node: unode
                };
              } else {
                throw new Error("Unknown shader uniform param type: " + ptype);
              }
            }

            var states = technique.states || {};
            var enables = states.enable || [];
            var functions = states.functions || {};
            var enableCullFace = false;
            var enableDepthTest = false;
            var enableBlend = false;

            for (var i = 0, il = enables.length; i < il; i++) {
              var enable = enables[i];

              switch (STATES_ENABLES[enable]) {
                case 'CULL_FACE':
                  enableCullFace = true;
                  break;

                case 'DEPTH_TEST':
                  enableDepthTest = true;
                  break;

                case 'BLEND':
                  enableBlend = true;
                  break;
                // TODO: implement

                case 'SCISSOR_TEST':
                case 'POLYGON_OFFSET_FILL':
                case 'SAMPLE_ALPHA_TO_COVERAGE':
                  break;

                default:
                  throw new Error("Unknown technique.states.enable: " + enable);
              }
            }

            if (enableCullFace) {
              materialParams.side = functions.cullFace !== undefined ? WEBGL_SIDES[functions.cullFace] : THREE.FrontSide;
            } else {
              materialParams.side = THREE.DoubleSide;
            }

            materialParams.depthTest = enableDepthTest;
            materialParams.depthFunc = functions.depthFunc !== undefined ? WEBGL_DEPTH_FUNCS[functions.depthFunc] : THREE.LessDepth;
            materialParams.depthWrite = functions.depthMask !== undefined ? functions.depthMask[0] : true;
            materialParams.blending = enableBlend ? THREE.CustomBlending : THREE.NoBlending;
            materialParams.transparent = enableBlend;
            var blendEquationSeparate = functions.blendEquationSeparate;

            if (blendEquationSeparate !== undefined) {
              materialParams.blendEquation = WEBGL_BLEND_EQUATIONS[blendEquationSeparate[0]];
              materialParams.blendEquationAlpha = WEBGL_BLEND_EQUATIONS[blendEquationSeparate[1]];
            } else {
              materialParams.blendEquation = THREE.AddEquation;
              materialParams.blendEquationAlpha = THREE.AddEquation;
            }

            var blendFuncSeparate = functions.blendFuncSeparate;

            if (blendFuncSeparate !== undefined) {
              materialParams.blendSrc = WEBGL_BLEND_FUNCS[blendFuncSeparate[0]];
              materialParams.blendDst = WEBGL_BLEND_FUNCS[blendFuncSeparate[1]];
              materialParams.blendSrcAlpha = WEBGL_BLEND_FUNCS[blendFuncSeparate[2]];
              materialParams.blendDstAlpha = WEBGL_BLEND_FUNCS[blendFuncSeparate[3]];
            } else {
              materialParams.blendSrc = THREE.OneFactor;
              materialParams.blendDst = THREE.ZeroFactor;
              materialParams.blendSrcAlpha = THREE.OneFactor;
              materialParams.blendDstAlpha = THREE.ZeroFactor;
            }
          }
        }

        if (Array.isArray(materialValues.diffuse)) {
          materialParams.color = new THREE.Color().fromArray(materialValues.diffuse);
        } else if (typeof materialValues.diffuse === 'string') {
          materialParams.map = dependencies.textures[materialValues.diffuse];
        }

        delete materialParams.diffuse;

        if (typeof materialValues.reflective === 'string') {
          materialParams.envMap = dependencies.textures[materialValues.reflective];
        }

        if (typeof materialValues.bump === 'string') {
          materialParams.bumpMap = dependencies.textures[materialValues.bump];
        }

        if (Array.isArray(materialValues.emission)) {
          if (materialType === THREE.MeshBasicMaterial) {
            materialParams.color = new THREE.Color().fromArray(materialValues.emission);
          } else {
            materialParams.emissive = new THREE.Color().fromArray(materialValues.emission);
          }
        } else if (typeof materialValues.emission === 'string') {
          if (materialType === THREE.MeshBasicMaterial) {
            materialParams.map = dependencies.textures[materialValues.emission];
          } else {
            materialParams.emissiveMap = dependencies.textures[materialValues.emission];
          }
        }

        if (Array.isArray(materialValues.specular)) {
          materialParams.specular = new THREE.Color().fromArray(materialValues.specular);
        } else if (typeof materialValues.specular === 'string') {
          materialParams.specularMap = dependencies.textures[materialValues.specular];
        }

        if (materialValues.shininess !== undefined) {
          materialParams.shininess = materialValues.shininess;
        }

        var _material = new materialType(materialParams);

        if (material.name !== undefined) _material.name = material.name;
        return _material;
      });
    });
  };

  GLTFParser.prototype.loadMeshes = function () {
    var json = this.json;
    return this._withDependencies(["accessors", "materials"]).then(function (dependencies) {
      return _each(json.meshes, function (mesh) {
        var group = new THREE.Group();
        if (mesh.name !== undefined) group.name = mesh.name;
        if (mesh.extras) group.userData = mesh.extras;
        var primitives = mesh.primitives || [];

        for (var name in primitives) {
          var primitive = primitives[name];

          if (primitive.mode === WEBGL_CONSTANTS.TRIANGLES || primitive.mode === undefined) {
            var geometry = new THREE.BufferGeometry();
            var attributes = primitive.attributes;

            for (var attributeId in attributes) {
              var attributeEntry = attributes[attributeId];
              if (!attributeEntry) return;
              var bufferAttribute = dependencies.accessors[attributeEntry];

              switch (attributeId) {
                case 'POSITION':
                  geometry.setAttribute('position', bufferAttribute);
                  break;

                case 'NORMAL':
                  geometry.setAttribute('normal', bufferAttribute);
                  break;

                case 'TEXCOORD_0':
                case 'TEXCOORD0':
                case 'TEXCOORD':
                  geometry.setAttribute('uv', bufferAttribute);
                  break;

                case 'TEXCOORD_1':
                  geometry.setAttribute('uv2', bufferAttribute);
                  break;

                case 'COLOR_0':
                case 'COLOR0':
                case 'COLOR':
                  geometry.setAttribute('color', bufferAttribute);
                  break;

                case 'WEIGHT':
                  geometry.setAttribute('skinWeight', bufferAttribute);
                  break;

                case 'JOINT':
                  geometry.setAttribute('skinIndex', bufferAttribute);
                  break;

                default:
                  if (!primitive.material) break;
                  var material = json.materials[primitive.material];
                  if (!material.technique) break;
                  var parameters = json.techniques[material.technique].parameters || {};

                  for (var attributeName in parameters) {
                    if (parameters[attributeName]['semantic'] === attributeId) {
                      geometry.setAttribute(attributeName, bufferAttribute);
                    }
                  }

              }
            }

            if (primitive.indices) {
              geometry.setIndex(dependencies.accessors[primitive.indices]);
            }

            var material = dependencies.materials !== undefined ? dependencies.materials[primitive.material] : createDefaultMaterial();
            var meshNode = new THREE.Mesh(geometry, material);
            meshNode.castShadow = true;
            meshNode.name = name === "0" ? group.name : group.name + name;
            if (primitive.extras) meshNode.userData = primitive.extras;
            group.add(meshNode);
          } else if (primitive.mode === WEBGL_CONSTANTS.LINES) {
            var geometry = new THREE.BufferGeometry();
            var attributes = primitive.attributes;

            for (var attributeId in attributes) {
              var attributeEntry = attributes[attributeId];
              if (!attributeEntry) return;
              var bufferAttribute = dependencies.accessors[attributeEntry];

              switch (attributeId) {
                case 'POSITION':
                  geometry.setAttribute('position', bufferAttribute);
                  break;

                case 'COLOR_0':
                case 'COLOR0':
                case 'COLOR':
                  geometry.setAttribute('color', bufferAttribute);
                  break;
              }
            }

            var material = dependencies.materials[primitive.material];
            var meshNode;

            if (primitive.indices) {
              geometry.setIndex(dependencies.accessors[primitive.indices]);
              meshNode = new THREE.LineSegments(geometry, material);
            } else {
              meshNode = new THREE.Line(geometry, material);
            }

            meshNode.name = name === "0" ? group.name : group.name + name;
            if (primitive.extras) meshNode.userData = primitive.extras;
            group.add(meshNode);
          } else {
            console.warn("Only triangular and line primitives are supported");
          }
        }

        return group;
      });
    });
  };

  GLTFParser.prototype.loadCameras = function () {
    var json = this.json;
    return _each(json.cameras, function (camera) {
      if (camera.type == "perspective" && camera.perspective) {
        var yfov = camera.perspective.yfov;
        var aspectRatio = camera.perspective.aspectRatio !== undefined ? camera.perspective.aspectRatio : 1; // According to COLLADA spec...
        // aspectRatio = xfov / yfov

        var _camera = new THREE.PerspectiveCamera(THREE.MathUtils.radToDeg(yfov * aspectRatio), aspectRatio, camera.perspective.znear || 1, camera.perspective.zfar || 2e6);

        if (camera.name !== undefined) _camera.name = camera.name;
        if (camera.extras) _camera.userData = camera.extras;
        return _camera;
      } else if (camera.type == "orthographic" && camera.orthographic) {
        var _camera = new THREE.OrthographicCamera(window.innerWidth / -2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / -2, camera.orthographic.znear, camera.orthographic.zfar);

        if (camera.name !== undefined) _camera.name = camera.name;
        if (camera.extras) _camera.userData = camera.extras;
        return _camera;
      }
    });
  };

  GLTFParser.prototype.loadSkins = function () {
    var json = this.json;
    return this._withDependencies(["accessors"]).then(function (dependencies) {
      return _each(json.skins, function (skin) {
        var bindShapeMatrix = new THREE.Matrix4();
        if (skin.bindShapeMatrix !== undefined) bindShapeMatrix.fromArray(skin.bindShapeMatrix);
        var _skin = {
          bindShapeMatrix: bindShapeMatrix,
          jointNames: skin.jointNames,
          inverseBindMatrices: dependencies.accessors[skin.inverseBindMatrices]
        };
        return _skin;
      });
    });
  };

  GLTFParser.prototype.loadAnimations = function () {
    var json = this.json;
    return this._withDependencies(["accessors", "nodes"]).then(function (dependencies) {
      return _each(json.animations, function (animation, animationId) {
        var tracks = [];

        for (var channelId in animation.channels) {
          var channel = animation.channels[channelId];
          var sampler = animation.samplers[channel.sampler];

          if (sampler) {
            var target = channel.target;
            var name = target.id;
            var input = animation.parameters !== undefined ? animation.parameters[sampler.input] : sampler.input;
            var output = animation.parameters !== undefined ? animation.parameters[sampler.output] : sampler.output;
            var inputAccessor = dependencies.accessors[input];
            var outputAccessor = dependencies.accessors[output];
            var node = dependencies.nodes[name];

            if (node) {
              node.updateMatrix();
              node.matrixAutoUpdate = true;
              var TypedKeyframeTrack = PATH_PROPERTIES[target.path] === PATH_PROPERTIES.rotation ? THREE.QuaternionKeyframeTrack : THREE.VectorKeyframeTrack;
              var targetName = node.name ? node.name : node.uuid;
              var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[sampler.interpolation] : THREE.InterpolateLinear; // KeyframeTrack.optimize() will modify given 'times' and 'values'
              // buffers before creating a truncated copy to keep. Because buffers may
              // be reused by other tracks, make copies here.

              tracks.push(new TypedKeyframeTrack(targetName + '.' + PATH_PROPERTIES[target.path], THREE.AnimationUtils.arraySlice(inputAccessor.array, 0), THREE.AnimationUtils.arraySlice(outputAccessor.array, 0), interpolation));
            }
          }
        }

        var name = animation.name !== undefined ? animation.name : "animation_" + animationId;
        return new THREE.AnimationClip(name, undefined, tracks);
      });
    });
  };

  GLTFParser.prototype.loadNodes = function () {
    var json = this.json;
    var extensions = this.extensions;
    var scope = this;
    return _each(json.nodes, function (node) {
      var matrix = new THREE.Matrix4();

      var _node;

      if (node.jointName) {
        _node = new THREE.Bone();
        _node.name = node.name !== undefined ? node.name : node.jointName;
        _node.jointName = node.jointName;
      } else {
        _node = new THREE.Object3D();
        if (node.name !== undefined) _node.name = node.name;
      }

      if (node.extras) _node.userData = node.extras;

      if (node.matrix !== undefined) {
        matrix.fromArray(node.matrix);

        _node.applyMatrix4(matrix);
      } else {
        if (node.translation !== undefined) {
          _node.position.fromArray(node.translation);
        }

        if (node.rotation !== undefined) {
          _node.quaternion.fromArray(node.rotation);
        }

        if (node.scale !== undefined) {
          _node.scale.fromArray(node.scale);
        }
      }

      return _node;
    }).then(function (__nodes) {
      return scope._withDependencies(["meshes", "skins", "cameras"]).then(function (dependencies) {
        return _each(__nodes, function (_node, nodeId) {
          var node = json.nodes[nodeId];

          if (node.meshes !== undefined) {
            for (var meshId in node.meshes) {
              var mesh = node.meshes[meshId];
              var group = dependencies.meshes[mesh];

              if (group === undefined) {
                console.warn('LegacyGLTFLoader: Couldn\'t find node "' + mesh + '".');
                continue;
              }

              for (var childrenId in group.children) {
                var child = group.children[childrenId]; // clone Mesh to add to _node

                var originalMaterial = child.material;
                var originalGeometry = child.geometry;
                var originalUserData = child.userData;
                var originalName = child.name;
                var material;

                if (originalMaterial.isDeferredShaderMaterial) {
                  originalMaterial = material = originalMaterial.create();
                } else {
                  material = originalMaterial;
                }

                switch (child.type) {
                  case 'LineSegments':
                    child = new THREE.LineSegments(originalGeometry, material);
                    break;

                  case 'LineLoop':
                    child = new THREE.LineLoop(originalGeometry, material);
                    break;

                  case 'Line':
                    child = new THREE.Line(originalGeometry, material);
                    break;

                  default:
                    child = new THREE.Mesh(originalGeometry, material);
                }

                child.castShadow = true;
                child.userData = originalUserData;
                child.name = originalName;
                var skinEntry;

                if (node.skin) {
                  skinEntry = dependencies.skins[node.skin];
                } // Replace Mesh with SkinnedMesh in library


                if (skinEntry) {
                  var getJointNode = function (jointId) {
                    var keys = Object.keys(__nodes);

                    for (var i = 0, il = keys.length; i < il; i++) {
                      var n = __nodes[keys[i]];
                      if (n.jointName === jointId) return n;
                    }

                    return null;
                  };

                  var material = originalMaterial;
                  material.skinning = true;
                  child = new THREE.SkinnedMesh(originalGeometry, material);
                  child.castShadow = true;
                  child.userData = originalUserData;
                  child.name = originalName;
                  var bones = [];
                  var boneInverses = [];

                  for (var i = 0, l = skinEntry.jointNames.length; i < l; i++) {
                    var jointId = skinEntry.jointNames[i];
                    var jointNode = getJointNode(jointId);

                    if (jointNode) {
                      bones.push(jointNode);
                      var m = skinEntry.inverseBindMatrices.array;
                      var mat = new THREE.Matrix4().fromArray(m, i * 16);
                      boneInverses.push(mat);
                    } else {
                      console.warn("WARNING: joint: '" + jointId + "' could not be found");
                    }
                  }

                  child.bind(new THREE.Skeleton(bones, boneInverses), skinEntry.bindShapeMatrix);

                  var buildBoneGraph = function (parentJson, parentObject, property) {
                    var children = parentJson[property];
                    if (children === undefined) return;

                    for (var i = 0, il = children.length; i < il; i++) {
                      var nodeId = children[i];
                      var bone = __nodes[nodeId];
                      var boneJson = json.nodes[nodeId];

                      if (bone !== undefined && bone.isBone === true && boneJson !== undefined) {
                        parentObject.add(bone);
                        buildBoneGraph(boneJson, bone, 'children');
                      }
                    }
                  };

                  buildBoneGraph(node, child, 'skeletons');
                }

                _node.add(child);
              }
            }
          }

          if (node.camera !== undefined) {
            var camera = dependencies.cameras[node.camera];

            _node.add(camera);
          }

          if (node.extensions && node.extensions[EXTENSIONS.KHR_MATERIALS_COMMON] && node.extensions[EXTENSIONS.KHR_MATERIALS_COMMON].light) {
            var extensionLights = extensions[EXTENSIONS.KHR_MATERIALS_COMMON].lights;
            var light = extensionLights[node.extensions[EXTENSIONS.KHR_MATERIALS_COMMON].light];

            _node.add(light);
          }

          return _node;
        });
      });
    });
  };

  GLTFParser.prototype.loadScenes = function () {
    var json = this.json; // scene node hierachy builder

    function buildNodeHierachy(nodeId, parentObject, allNodes) {
      var _node = allNodes[nodeId];
      parentObject.add(_node);
      var node = json.nodes[nodeId];

      if (node.children) {
        var children = node.children;

        for (var i = 0, l = children.length; i < l; i++) {
          var child = children[i];
          buildNodeHierachy(child, _node, allNodes);
        }
      }
    }

    return this._withDependencies(["nodes"]).then(function (dependencies) {
      return _each(json.scenes, function (scene) {
        var _scene = new THREE.Scene();

        if (scene.name !== undefined) _scene.name = scene.name;
        if (scene.extras) _scene.userData = scene.extras;
        var nodes = scene.nodes || [];

        for (var i = 0, l = nodes.length; i < l; i++) {
          var nodeId = nodes[i];
          buildNodeHierachy(nodeId, _scene, dependencies.nodes);
        }

        _scene.traverse(function (child) {
          // Register raw material meshes with LegacyGLTFLoader.Shaders
          if (child.material && child.material.isRawShaderMaterial) {
            child.gltfShader = new GLTFShader(child, dependencies.nodes);

            child.onBeforeRender = function (renderer, scene, camera) {
              this.gltfShader.update(scene, camera);
            };
          }
        });

        return _scene;
      });
    });
  };

  return LegacyGLTFLoader;
}();

var _default = threeExamples.LegacyGLTFLoader;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Process/3dTilesProcessing.js":
/*!**************************************************************!*\
  !*** ./node_modules/itowns/lib/Process/3dTilesProcessing.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof3 = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.$3dTilesCulling = $3dTilesCulling;
exports.$3dTilesSubdivisionControl = $3dTilesSubdivisionControl;
exports.computeNodeSSE = computeNodeSSE;
exports.init3dTilesLayer = init3dTilesLayer;
exports.pre3dTilesUpdate = pre3dTilesUpdate;
exports.process3dTilesNode = process3dTilesNode;

var _toConsumableArray2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/toConsumableArray */ "./node_modules/@babel/runtime/helpers/toConsumableArray.js"));

var _typeof2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof3(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

/** @module 3dTilesProcessing
*/
function requestNewTile(view, scheduler, geometryLayer, metadata, parent, redraw) {
  var command = {
    /* mandatory */
    view: view,
    requester: parent,
    layer: geometryLayer,
    priority: parent ? 1.0 / (parent.distance + 1) : 100,

    /* specific params */
    metadata: metadata,
    redraw: redraw
  };
  return scheduler.execute(command);
}

function getChildTiles(tile) {
  // only keep children that have the same layer and a valid tileId
  return tile.children.filter(function (n) {
    return n.layer == tile.layer && n.tileId;
  });
}

function subdivideNode(context, layer, node, cullingTest) {
  if (node.additiveRefinement) {
    // Additive refinement can only fetch visible children.
    _subdivideNodeAdditive(context, layer, node, cullingTest);
  } else {
    // Substractive refinement on the other hand requires to replace
    // node with all of its children
    _subdivideNodeSubstractive(context, layer, node);
  }
}

var tmpBox3 = new THREE.Box3();
var tmpSphere = new THREE.Sphere();

function boundingVolumeToExtent(crs, volume, transform) {
  if (volume.region) {
    var box = tmpBox3.copy(volume.region.box3D).applyMatrix4(volume.region.matrixWorld);
    return _Extent["default"].fromBox3(crs, box);
  } else if (volume.box) {
    var _box = tmpBox3.copy(volume.box).applyMatrix4(transform);

    return _Extent["default"].fromBox3(crs, _box);
  } else {
    var sphere = tmpSphere.copy(volume.sphere).applyMatrix4(transform);

    var _box2 = sphere.getBoundingBox(tmpBox3);

    return _Extent["default"].fromBox3(crs, _box2);
  }
}

var tmpMatrix = new THREE.Matrix4();

function _subdivideNodeAdditive(context, layer, node, cullingTest) {
  var _iterator = _createForOfIteratorHelper(layer.tileset.tiles[node.tileId].children),
      _step;

  try {
    var _loop = function () {
      var child = _step.value;

      // child being downloaded => skip
      if (child.promise || child.loaded) {
        return "continue";
      } // 'child' is only metadata (it's *not* a THREE.Object3D). 'cullingTest' needs
      // a matrixWorld, so we compute it: it's node's matrixWorld x child's transform


      var overrideMatrixWorld = node.matrixWorld;

      if (child.transform) {
        overrideMatrixWorld = tmpMatrix.multiplyMatrices(node.matrixWorld, child.transform);
      }

      var isVisible = cullingTest ? !cullingTest(layer, context.camera, child, overrideMatrixWorld) : true; // child is not visible => skip

      if (!isVisible) {
        return "continue";
      }

      child.promise = requestNewTile(context.view, context.scheduler, layer, child, node, true).then(function (tile) {
        node.add(tile);
        tile.updateMatrixWorld(); // The extent is calculated but it's never used in 3D tiles process

        var extent = boundingVolumeToExtent(layer.extent.crs, tile.boundingVolume, tile.matrixWorld);
        tile.traverse(function (obj) {
          obj.extent = extent;
        });
        layer.onTileContentLoaded(tile);
        context.view.notifyChange(child);
        child.loaded = true;
        delete child.promise;
      });
    };

    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var _ret = _loop();

      if (_ret === "continue") continue;
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
}

function _subdivideNodeSubstractive(context, layer, node) {
  if (!node.pendingSubdivision && getChildTiles(node).length == 0) {
    var _ret2 = function () {
      var childrenTiles = layer.tileset.tiles[node.tileId].children;

      if (childrenTiles === undefined || childrenTiles.length === 0) {
        return {
          v: void 0
        };
      }

      node.pendingSubdivision = true;
      var promises = [];

      var _loop2 = function (i) {
        promises.push(requestNewTile(context.view, context.scheduler, layer, childrenTiles[i], node, false).then(function (tile) {
          childrenTiles[i].loaded = true;
          node.add(tile);
          tile.updateMatrixWorld();

          if (node.additiveRefinement) {
            context.view.notifyChange(node);
          }

          layer.tileset.tiles[tile.tileId].loaded = true;
          layer.onTileContentLoaded(tile);
        }));
      };

      for (var i = 0; i < childrenTiles.length; i++) {
        _loop2(i);
      }

      Promise.all(promises).then(function () {
        node.pendingSubdivision = false;
        context.view.notifyChange(node);
      });
    }();

    if ((0, _typeof2["default"])(_ret2) === "object") return _ret2.v;
  }
}
/**
 * Check if the node is visible in the camera.
 *
 * @param      {C3DTilesLayer} layer       node 3D tiles layer
 * @param      {Camera}   camera           camera
 * @param      {THREE.Object3D}   node             The 3d tile node to check.
 * @param      {THREE.Matrix4}   tileMatrixWorld  The node matrix world
 * @return     {boolean}  return true if the node is visible
 */


function $3dTilesCulling(layer, camera, node, tileMatrixWorld) {
  // For viewer Request Volume
  // https://github.com/AnalyticalGraphicsInc/3d-tiles-samples/tree/master/tilesets/TilesetWithRequestVolume
  if (node.viewerRequestVolume && node.viewerRequestVolume.viewerRequestVolumeCulling(camera, tileMatrixWorld)) {
    return true;
  } // For bounding volume


  if (node.boundingVolume && node.boundingVolume.boundingVolumeCulling(camera, tileMatrixWorld)) {
    return true;
  }

  return false;
} // Cleanup all 3dtiles|three.js starting from a given node n.
// n's children can be of 2 types:
//   - have a 'content' attribute -> it's a tileset and must
//     be cleaned with cleanup3dTileset()
//   - doesn't have 'content' -> it's a raw Object3D object,
//     and must be cleaned with _cleanupObject3D()


function cleanup3dTileset(layer, n) {
  var depth = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
  // If this layer is not using additive refinement, we can only
  // clean a tile if all its neighbours are cleaned as well because
  // a tile can only be in 2 states:
  //   - displayed and no children displayed
  //   - hidden and all of its children displayed
  // So here we implement a conservative measure: if T is cleanable
  // we actually only clean its children tiles.
  var canCleanCompletely = n.additiveRefinement || depth > 0;

  for (var i = 0; i < n.children.length; i++) {
    // skip non-tiles elements
    if (!n.children[i].content) {
      if (canCleanCompletely) {
        n.children[i].traverse(_cleanupObject3D);
      }
    } else {
      cleanup3dTileset(layer, n.children[i], depth + 1);
    }
  }

  if (canCleanCompletely) {
    if (n.dispose) {
      n.dispose();
    }

    delete n.content;
    layer.tileset.tiles[n.tileId].loaded = false;
    n.remove.apply(n, (0, _toConsumableArray2["default"])(n.children)); // and finally remove from parent

    if (depth == 0 && n.parent) {
      n.parent.remove(n);
    }
  } else {
    var tiles = getChildTiles(n);
    n.remove.apply(n, (0, _toConsumableArray2["default"])(tiles));
  }
} // This function is used to cleanup a Object3D hierarchy.
// (no 3dtiles spectific code here because this is managed by cleanup3dTileset)


function _cleanupObject3D(n) {
  // all children of 'n' are raw Object3D
  var _iterator2 = _createForOfIteratorHelper(n.children),
      _step2;

  try {
    for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
      var child = _step2.value;

      _cleanupObject3D(child);
    } // free resources

  } catch (err) {
    _iterator2.e(err);
  } finally {
    _iterator2.f();
  }

  if (n.material) {
    // material can be either a THREE.Material object, or an array of
    // THREE.Material objects
    if (Array.isArray(n.material)) {
      var _iterator3 = _createForOfIteratorHelper(n.material),
          _step3;

      try {
        for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
          var material = _step3.value;
          material.dispose();
        }
      } catch (err) {
        _iterator3.e(err);
      } finally {
        _iterator3.f();
      }
    } else {
      n.material.dispose();
    }
  }

  if (n.geometry) {
    n.geometry.dispose();
  }

  n.remove.apply(n, (0, _toConsumableArray2["default"])(n.children));
} // this is a layer


function pre3dTilesUpdate() {
  if (!this.visible) {
    return [];
  } // Elements removed are added in the layer._cleanableTiles list.
  // Since we simply push in this array, the first item is always
  // the oldest one.


  var now = Date.now();

  if (this._cleanableTiles.length && now - this._cleanableTiles[0].cleanableSince > this.cleanupDelay) {
    // Make sure we don't clean root tile
    this.root.cleanableSince = undefined;
    var i = 0;

    for (; i < this._cleanableTiles.length; i++) {
      var elt = this._cleanableTiles[i];

      if (now - elt.cleanableSince > this.cleanupDelay) {
        cleanup3dTileset(this, elt);
      } else {
        // later entries are younger
        break;
      }
    } // remove deleted elements from _cleanableTiles


    this._cleanableTiles.splice(0, i);
  }

  return [this.root];
}

var boundingVolumeBox = new THREE.Box3();
var boundingVolumeSphere = new THREE.Sphere();

function computeNodeSSE(camera, node) {
  node.distance = 0;

  if (node.boundingVolume.region) {
    boundingVolumeBox.copy(node.boundingVolume.region.box3D);
    boundingVolumeBox.applyMatrix4(node.boundingVolume.region.matrixWorld);
    node.distance = boundingVolumeBox.distanceToPoint(camera.camera3D.position);
  } else if (node.boundingVolume.box) {
    // boundingVolume.box is affected by matrixWorld
    boundingVolumeBox.copy(node.boundingVolume.box);
    boundingVolumeBox.applyMatrix4(node.matrixWorld);
    node.distance = boundingVolumeBox.distanceToPoint(camera.camera3D.position);
  } else if (node.boundingVolume.sphere) {
    // boundingVolume.sphere is affected by matrixWorld
    boundingVolumeSphere.copy(node.boundingVolume.sphere);
    boundingVolumeSphere.applyMatrix4(node.matrixWorld); // TODO: see https://github.com/iTowns/itowns/issues/800

    node.distance = Math.max(0.0, boundingVolumeSphere.distanceToPoint(camera.camera3D.position));
  } else {
    return Infinity;
  }

  if (node.distance === 0) {
    // This test is needed in case geometricError = distance = 0
    return Infinity;
  }

  return camera._preSSE * (node.geometricError / node.distance);
}

function init3dTilesLayer(view, scheduler, layer, rootTile) {
  return requestNewTile(view, scheduler, layer, rootTile, undefined, true).then(function (tile) {
    layer.object3d.add(tile);
    tile.updateMatrixWorld();
    layer.tileset.tiles[tile.tileId].loaded = true;
    layer.root = tile; // The extent is calculated but it's never used in 3D tiles process

    layer.extent = boundingVolumeToExtent(layer.crs || view.referenceCrs, tile.boundingVolume, tile.matrixWorld);
    layer.onTileContentLoaded(tile);
  });
}

function setDisplayed(node, display) {
  // The geometry of the tile is not in node, but in node.content
  // To change the display state, we change node.content.visible instead of
  // node.material.visible
  if (node.content) {
    node.content.visible = display;
  }
}

function markForDeletion(layer, elt) {
  if (!elt.cleanableSince) {
    elt.cleanableSince = Date.now();

    layer._cleanableTiles.push(elt);
  }
}
/**
 * This funcion builds the method to update 3d tiles node.
 *
 * The returned method checks the 3d tile visibility with `cullingTest` function.
 * It subdivises visible node if `subdivisionTest` return `true`.
 *
 * @param      {Function}  [cullingTest=$3dTilesCulling]                 The culling test method.
 * @param      {Function}  [subdivisionTest=$3dTilesSubdivisionControl]  The subdivision test method.
 * @return     {Function}    { description_of_the_return_value }
 */


function process3dTilesNode() {
  var cullingTest = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : $3dTilesCulling;
  var subdivisionTest = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : $3dTilesSubdivisionControl;
  return function (context, layer, node) {
    // early exit if parent's subdivision is in progress
    if (node.parent.pendingSubdivision && !node.parent.additiveRefinement) {
      node.visible = false;
      return undefined;
    } // do proper culling


    var isVisible = cullingTest ? !cullingTest(layer, context.camera, node, node.matrixWorld) : true;
    node.visible = isVisible;

    if (isVisible) {
      if (node.cleanableSince) {
        layer._cleanableTiles.splice(layer._cleanableTiles.indexOf(node), 1);

        node.cleanableSince = undefined;
      }

      var returnValue;

      if (node.pendingSubdivision || subdivisionTest(context, layer, node)) {
        subdivideNode(context, layer, node, cullingTest); // display iff children aren't ready

        setDisplayed(node, node.pendingSubdivision || node.additiveRefinement);
        returnValue = getChildTiles(node);
      } else {
        setDisplayed(node, true);

        var _iterator4 = _createForOfIteratorHelper(getChildTiles(node)),
            _step4;

        try {
          for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
            var n = _step4.value;
            n.visible = false;
            markForDeletion(layer, n);
          }
        } catch (err) {
          _iterator4.e(err);
        } finally {
          _iterator4.f();
        }
      }

      return returnValue;
    }

    markForDeletion(layer, node);
  };
}
/**
 *
 *
 * the method returns true if the `node` should be subivised.
 *
 * @param      {object}   context  The current context
 * @param      {Camera}   context.camera  The current camera
 * @param      {C3DTilesLayer}   layer  The 3d tile layer
 * @param      {THREE.Object3D}  node  The 3d tile node
 * @return     {boolean}
 */


function $3dTilesSubdivisionControl(context, layer, node) {
  if (layer.tileset.tiles[node.tileId].children === undefined) {
    return false;
  }

  if (layer.tileset.tiles[node.tileId].isTileset) {
    return true;
  }

  var sse = computeNodeSSE(context.camera, node);
  return sse > layer.sseThreshold;
}

/***/ }),

/***/ "./node_modules/itowns/lib/Process/FeatureProcessing.js":
/*!**************************************************************!*\
  !*** ./node_modules/itowns/lib/Process/FeatureProcessing.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _LayerUpdateState = _interopRequireDefault(__webpack_require__(/*! ../Layer/LayerUpdateState */ "./node_modules/itowns/lib/Layer/LayerUpdateState.js"));

var _ObjectRemovalHelper = _interopRequireDefault(__webpack_require__(/*! ./ObjectRemovalHelper */ "./node_modules/itowns/lib/Process/ObjectRemovalHelper.js"));

var _handlerNodeError = _interopRequireDefault(__webpack_require__(/*! ./handlerNodeError */ "./node_modules/itowns/lib/Process/handlerNodeError.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _GeoidLayer = __webpack_require__(/*! ../Layer/GeoidLayer */ "./node_modules/itowns/lib/Layer/GeoidLayer.js");

var coord = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var _default = {
  update: function update(context, layer, node) {
    if (!node.parent && node.children.length) {
      // if node has been removed dispose three.js resource
      _ObjectRemovalHelper["default"].removeChildrenAndCleanupRecursively(layer, node);

      return;
    }

    if (!node.visible) {
      return;
    }

    if (node.layerUpdateState[layer.id] === undefined) {
      node.layerUpdateState[layer.id] = new _LayerUpdateState["default"]();
    } else if (!node.layerUpdateState[layer.id].canTryUpdate()) {
      // toggle visibility features
      node.link.forEach(function (f) {
        var _f$layer;

        if (((_f$layer = f.layer) === null || _f$layer === void 0 ? void 0 : _f$layer.id) == layer.id) {
          f.layer.object3d.add(f);
          f.meshes.position.z = (0, _GeoidLayer.geoidLayerIsVisible)(layer.parent) ? node.geoidHeight : 0;
          f.meshes.updateMatrixWorld();
        }
      });
      return;
    }

    var extentsDestination = node.getExtentsByProjection(layer.source.crs) || [node.extent];
    var zoomDest = extentsDestination[0].zoom; // check if it's tile level is equal to display level layer.

    if (zoomDest != layer.zoom.min || // check if there's data in extent tile.
    !this.source.extentInsideLimit(node.extent, zoomDest) || // In FileSource case, check if the feature center is in extent tile.
    layer.source.isFileSource && !node.extent.isPointInside(layer.source.extent.center(coord))) {
      // if not, there's not data to add at this tile.
      node.layerUpdateState[layer.id].noMoreUpdatePossible();
      return;
    }

    node.layerUpdateState[layer.id].newTry();
    var command = {
      layer: layer,
      extentsSource: extentsDestination,
      view: context.view,
      threejsLayer: layer.threejsLayer,
      requester: node
    };
    return context.scheduler.execute(command).then(function (featureMeshes) {
      node.layerUpdateState[layer.id].noMoreUpdatePossible();
      featureMeshes.forEach(function (featureMesh) {
        if (featureMesh) {
          featureMesh.as(context.view.referenceCrs);
          featureMesh.meshes.position.z = (0, _GeoidLayer.geoidLayerIsVisible)(layer.parent) ? node.geoidHeight : 0;
          featureMesh.updateMatrixWorld();

          if (layer.onMeshCreated) {
            layer.onMeshCreated(featureMesh, context);
          }

          if (!node.parent) {
            // TODO: Clean cache needs a refactory, because it isn't really efficient and used
            _ObjectRemovalHelper["default"].removeChildrenAndCleanupRecursively(layer, featureMesh);
          } else {
            layer.object3d.add(featureMesh);
            node.link.push(featureMesh);
          }

          featureMesh.layer = layer;
        } else {
          // TODO: verify if it's possible the featureMesh is undefined.
          node.layerUpdateState[layer.id].failure(1, true);
        }
      });
    }, function (err) {
      return (0, _handlerNodeError["default"])(err, node, layer, node.level, context.view);
    });
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Process/LayeredMaterialNodeProcessing.js":
/*!**************************************************************************!*\
  !*** ./node_modules/itowns/lib/Process/LayeredMaterialNodeProcessing.js ***!
  \**************************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.SIZE_TEXTURE_TILE = exports.SIZE_DIAGONAL_TEXTURE = void 0;
exports.removeLayeredMaterialNodeLayer = removeLayeredMaterialNodeLayer;
exports.updateLayeredMaterialNodeElevation = updateLayeredMaterialNodeElevation;
exports.updateLayeredMaterialNodeImagery = updateLayeredMaterialNodeImagery;

var _LayerUpdateStrategy = __webpack_require__(/*! ../Layer/LayerUpdateStrategy */ "./node_modules/itowns/lib/Layer/LayerUpdateStrategy.js");

var _LayerUpdateState = _interopRequireDefault(__webpack_require__(/*! ../Layer/LayerUpdateState */ "./node_modules/itowns/lib/Layer/LayerUpdateState.js"));

var _handlerNodeError = _interopRequireDefault(__webpack_require__(/*! ./handlerNodeError */ "./node_modules/itowns/lib/Process/handlerNodeError.js"));

var SIZE_TEXTURE_TILE = 256;
exports.SIZE_TEXTURE_TILE = SIZE_TEXTURE_TILE;
var SIZE_DIAGONAL_TEXTURE = Math.pow(2 * (SIZE_TEXTURE_TILE * SIZE_TEXTURE_TILE), 0.5);
exports.SIZE_DIAGONAL_TEXTURE = SIZE_DIAGONAL_TEXTURE;

function materialCommandQueuePriorityFunction(material) {
  // We know that 'node' is visible because commands can only be
  // issued for visible nodes.
  // TODO: need priorization of displayed nodes
  // Then prefer displayed node over non-displayed one
  return material.visible ? 100 : 10;
}

function refinementCommandCancellationFn(cmd) {
  if (!cmd.requester.parent || !cmd.requester.material) {
    return true;
  } // Cancel the command if the tile already has a better texture.
  // This is only needed for elevation layers, because we may have several
  // concurrent layers but we can only use one texture.


  if (cmd.layer.isElevationLayer && cmd.requester.material.getElevationLayer() && cmd.targetLevel <= cmd.requester.material.getElevationLayer().level) {
    return true;
  } // Cancel the command if the layer was removed between command scheduling and command execution


  if (!cmd.requester.layerUpdateState[cmd.layer.id] || !cmd.layer.source._featuresCaches[cmd.layer.crs]) {
    return true;
  }

  return !cmd.requester.material.visible;
}

function buildCommand(view, layer, extentsSource, extentsDestination, requester) {
  return {
    view: view,
    layer: layer,
    extentsSource: extentsSource,
    extentsDestination: extentsDestination,
    requester: requester,
    priority: materialCommandQueuePriorityFunction(requester.material),
    earlyDropFunction: refinementCommandCancellationFn
  };
}

function updateLayeredMaterialNodeImagery(context, layer, node, parent) {
  var material = node.material;

  if (!parent || !material) {
    return;
  }

  var extentsDestination = node.getExtentsByProjection(layer.crs);
  var zoom = extentsDestination[0].zoom;

  if (zoom > layer.zoom.max || zoom < layer.zoom.min) {
    return;
  }

  var nodeLayer = material.getLayer(layer.id); // Initialisation

  if (node.layerUpdateState[layer.id] === undefined) {
    node.layerUpdateState[layer.id] = new _LayerUpdateState["default"]();

    if (!layer.source.extentInsideLimit(node.extent, zoom)) {
      // we also need to check that tile's parent doesn't have a texture for this layer,
      // because even if this tile is outside of the layer, it could inherit it's
      // parent texture
      if (!(!layer.noTextureParentOutsideLimit && parent.material && parent.material.getLayer && parent.material.getLayer(layer.id))) {
        node.layerUpdateState[layer.id].noMoreUpdatePossible();
        return;
      }
    }

    if (!nodeLayer) {
      var _parent$material;

      // Create new raster node
      nodeLayer = layer.setupRasterNode(node); // Init the node by parent

      var parentLayer = (_parent$material = parent.material) === null || _parent$material === void 0 ? void 0 : _parent$material.getLayer(layer.id);
      nodeLayer.initFromParent(parentLayer, extentsDestination);
    } // Proposed new process, two separate processes:
    //      * FIRST PASS: initNodeXXXFromParent and get out of the function
    //      * SECOND PASS: Fetch best texture
    // The two-step allows you to filter out unnecessary requests
    // Indeed in the second pass, their state (not visible or not displayed) can block them to fetch


    if (nodeLayer.level >= layer.source.zoom.min) {
      context.view.notifyChange(node, false);
      return;
    }
  } // Node is hidden, no need to update it


  if (!material.visible) {
    return;
  } // An update is pending / or impossible -> abort


  if (!layer.visible || !node.layerUpdateState[layer.id].canTryUpdate()) {
    return;
  }

  if (nodeLayer.level >= extentsDestination[0].zoom) {
    // default decision method
    node.layerUpdateState[layer.id].noMoreUpdatePossible();
    return;
  } // is fetching data from this layer disabled?


  if (layer.frozen) {
    return;
  }

  var failureParams = node.layerUpdateState[layer.id].failureParams;
  var destinationLevel = extentsDestination[0].zoom || node.level;
  var targetLevel = (0, _LayerUpdateStrategy.chooseNextLevelToFetch)(layer.updateStrategy.type, node, destinationLevel, nodeLayer.level, layer, failureParams);

  if (!layer.source.isVectorSource && targetLevel <= nodeLayer.level || targetLevel > destinationLevel) {
    if (failureParams.lowestLevelError != Infinity) {
      // this is the highest level found in case of error.
      node.layerUpdateState[layer.id].noMoreUpdatePossible();
    }

    return;
  } else if (!layer.source.extentInsideLimit(node.extent, targetLevel)) {
    node.layerUpdateState[layer.id].noData({
      targetLevel: targetLevel
    });
    context.view.notifyChange(node, false);
    return;
  }

  var extentsSource = extentsDestination.map(function (e) {
    return e.tiledExtentParent(targetLevel);
  });
  node.layerUpdateState[layer.id].newTry();
  var command = buildCommand(context.view, layer, extentsSource, extentsDestination, node);
  return context.scheduler.execute(command).then(function (result) {
    // Does nothing if the layer has been removed while command was being or waiting to be executed
    if (!node.layerUpdateState[layer.id]) {
      return;
    } // TODO: Handle error : result is undefined in provider. throw error


    var pitchs = extentsDestination.map(function (ext, i) {
      return ext.offsetToParent(result[i].extent, nodeLayer.offsetScales[i]);
    });
    nodeLayer.setTextures(result, pitchs);
    node.layerUpdateState[layer.id].success();
  }, function (err) {
    return (0, _handlerNodeError["default"])(err, node, layer, targetLevel, context.view);
  });
}

function updateLayeredMaterialNodeElevation(context, layer, node, parent) {
  var material = node.material;

  if (!parent || !material) {
    return;
  } // TODO: we need either
  //  - compound or exclusive layers
  //  - support for multiple elevation layers
  // Elevation is currently handled differently from color layers.
  // This is caused by a LayeredMaterial limitation: only 1 elevation texture
  // can be used (where a tile can have N textures x M layers)


  var extentsDestination = node.getExtentsByProjection(layer.crs);
  var zoom = extentsDestination[0].zoom;

  if (zoom > layer.zoom.max || zoom < layer.zoom.min) {
    return;
  } // Init elevation layer, and inherit from parent if possible


  var nodeLayer = material.getElevationLayer();

  if (!nodeLayer) {
    nodeLayer = layer.setupRasterNode(node);
  }

  if (node.layerUpdateState[layer.id] === undefined) {
    var _parent$material2;

    node.layerUpdateState[layer.id] = new _LayerUpdateState["default"]();
    var parentLayer = (_parent$material2 = parent.material) === null || _parent$material2 === void 0 ? void 0 : _parent$material2.getLayer(layer.id);
    nodeLayer.initFromParent(parentLayer, extentsDestination);

    if (nodeLayer.level >= layer.source.zoom.min) {
      context.view.notifyChange(node, false);
      return;
    }
  } // Possible conditions to *not* update the elevation texture


  if (layer.frozen || !material.visible || !node.layerUpdateState[layer.id].canTryUpdate()) {
    return;
  }

  var failureParams = node.layerUpdateState[layer.id].failureParams;
  var targetLevel = (0, _LayerUpdateStrategy.chooseNextLevelToFetch)(layer.updateStrategy.type, node, extentsDestination[0].zoom, nodeLayer.level, layer, failureParams);

  if (targetLevel <= nodeLayer.level || targetLevel > extentsDestination[0].zoom) {
    node.layerUpdateState[layer.id].noMoreUpdatePossible();
    return;
  } else if (!layer.source.extentInsideLimit(node.extent, targetLevel)) {
    node.layerUpdateState[layer.id].noData({
      targetLevel: targetLevel
    });
    context.view.notifyChange(node, false);
    return;
  }

  var extentsSource = extentsDestination.map(function (e) {
    return e.tiledExtentParent(targetLevel);
  });
  node.layerUpdateState[layer.id].newTry();
  var command = buildCommand(context.view, layer, extentsSource, extentsDestination, node);
  return context.scheduler.execute(command).then(function (result) {
    // Does nothing if the layer has been removed while command was being or waiting to be executed
    if (!node.layerUpdateState[layer.id]) {
      return;
    } // Do not apply the new texture if its level is < than the current
    // one.  This is only needed for elevation layers, because we may
    // have several concurrent layers but we can only use one texture.


    if (targetLevel <= nodeLayer.level) {
      node.layerUpdateState[layer.id].noMoreUpdatePossible();
      return;
    }

    var pitchs = extentsDestination.map(function (ext, i) {
      return ext.offsetToParent(result[i].extent, nodeLayer.offsetScales[i]);
    });
    nodeLayer.setTextures(result, pitchs);
    node.layerUpdateState[layer.id].success();
  }, function (err) {
    return (0, _handlerNodeError["default"])(err, node, layer, targetLevel, context.view);
  });
}

function removeLayeredMaterialNodeLayer(layerId) {
  return function (node) {
    var _node$material;

    if ((_node$material = node.material) !== null && _node$material !== void 0 && _node$material.removeLayer) {
      node.material.removeLayer(layerId);

      if (node.material.elevationLayerIds[0] == layerId) {
        node.setBBoxZ({
          min: 0,
          max: 0
        });
      }
    }

    if (node.layerUpdateState && node.layerUpdateState[layerId]) {
      delete node.layerUpdateState[layerId];
    }
  };
}

/***/ }),

/***/ "./node_modules/itowns/lib/Process/ObjectRemovalHelper.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Process/ObjectRemovalHelper.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _toConsumableArray2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/toConsumableArray */ "./node_modules/@babel/runtime/helpers/toConsumableArray.js"));

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

var _default = {
  /**
   * Cleanup obj to release three.js allocated resources
   * @param {Object3D} obj object to release
   */
  cleanup: function cleanup(obj) {
    obj.layer = null;

    if (typeof obj.dispose === 'function') {
      obj.dispose();
    } else {
      if (obj.geometry) {
        obj.geometry.dispose(); // the Object Removal Helper causes inconsistencies
        // when it assigns null to a geometry present in the Cache.
        // Actually, the cache can provide a mesh whose geometry is null.
        // see https://github.com/iTowns/itowns/issues/869
        // obj.geometry = null;
      }

      if (obj.material) {
        if (Array.isArray(obj.material)) {
          var _iterator = _createForOfIteratorHelper(obj.material),
              _step;

          try {
            for (_iterator.s(); !(_step = _iterator.n()).done;) {
              var material = _step.value;
              material.dispose();
            }
          } catch (err) {
            _iterator.e(err);
          } finally {
            _iterator.f();
          }
        } else {
          obj.material.dispose();
        }
      }

      obj.dispatchEvent({
        type: 'dispose'
      });
    }
  },

  /**
   * Remove obj's children belonging to a layer.
   * Neither obj nor its children will be disposed!
   * @param {Layer} layer The layer that objects must belong to. Other object are ignored
   * @param {Object3D} obj The Object3D we want to clean
   * @return {Array} an array of removed Object3D from obj (not including the recursive removals)
   */
  removeChildren: function removeChildren(layer, obj) {
    var toRemove = obj.children.filter(function (c) {
      return (c.layer && c.layer.id) === layer.id;
    });
    obj.remove.apply(obj, (0, _toConsumableArray2["default"])(toRemove));
    return toRemove;
  },

  /**
   * Remove obj's children belonging to a layer and cleanup objexts.
   * obj will be disposed but its children **won't**!
   * @param {Layer} layer The layer that objects must belong to. Other object are ignored
   * @param {Object3D} obj The Object3D we want to clean
   * @return {Array} an array of removed Object3D from obj (not including the recursive removals)
   */
  removeChildrenAndCleanup: function removeChildrenAndCleanup(layer, obj) {
    var toRemove = obj.children.filter(function (c) {
      return (c.layer && c.layer.id) === layer.id;
    });
    obj.remove.apply(obj, (0, _toConsumableArray2["default"])(toRemove));

    if (obj.layer === layer) {
      this.cleanup(obj);
    }

    return toRemove;
  },

  /**
   * Recursively remove obj's children belonging to a layer.
   * All removed obj will have their geometry/material disposed.
   * @param {Layer} layer The layer that objects must belong to. Other object are ignored
   * @param {Object3D} obj The Object3D we want to clean
   * @return {Array} an array of removed Object3D from obj (not including the recursive removals)
   */
  removeChildrenAndCleanupRecursively: function removeChildrenAndCleanupRecursively(layer, obj) {
    var toRemove = obj.children.filter(function (c) {
      return (c.layer && c.layer.id) === layer.id;
    });

    if (obj.link) {
      toRemove = toRemove.concat(obj.link);
    }

    var _iterator2 = _createForOfIteratorHelper(toRemove),
        _step2;

    try {
      for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
        var c = _step2.value;
        this.removeChildrenAndCleanupRecursively(layer, c);
      }
    } catch (err) {
      _iterator2.e(err);
    } finally {
      _iterator2.f();
    }

    obj.remove.apply(obj, (0, _toConsumableArray2["default"])(toRemove));

    if (obj.layer && obj.layer.id === layer.id) {
      this.cleanup(obj);
    }

    return toRemove;
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Process/handlerNodeError.js":
/*!*************************************************************!*\
  !*** ./node_modules/itowns/lib/Process/handlerNodeError.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = handlingError;
// max retry loading before changing the status to definitiveError
var MAX_RETRY = 4;

function handlingError(err, node, layer, targetLevel, view) {
  // Cancel error handling if the layer was removed between command scheduling and its execution
  if (!node.layerUpdateState[layer.id]) {
    return;
  }

  if (err.isCancelledCommandException) {
    node.layerUpdateState[layer.id].success();
  } else if (err instanceof SyntaxError) {
    node.layerUpdateState[layer.id].failure(0, true);
  } else {
    var definitiveError = node.layerUpdateState[layer.id].errorCount > MAX_RETRY;
    node.layerUpdateState[layer.id].failure(Date.now(), definitiveError, {
      targetLevel: targetLevel
    });

    if (!definitiveError) {
      window.setTimeout(function () {
        view.notifyChange(node, false);
      }, node.layerUpdateState[layer.id].secondsUntilNextTry() * 1000);
    }
  }
}

/***/ }),

/***/ "./node_modules/itowns/lib/Provider/3dTilesProvider.js":
/*!*************************************************************!*\
  !*** ./node_modules/itowns/lib/Provider/3dTilesProvider.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.configureTile = configureTile;
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _B3dmParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/B3dmParser */ "./node_modules/itowns/lib/Parser/B3dmParser.js"));

var _PntsParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/PntsParser */ "./node_modules/itowns/lib/Parser/PntsParser.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ./Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

var _Utf8Decoder = _interopRequireDefault(__webpack_require__(/*! ../Utils/Utf8Decoder */ "./node_modules/itowns/lib/Utils/Utf8Decoder.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function b3dmToMesh(data, layer, url) {
  var urlBase = THREE.LoaderUtils.extractUrlBase(url);
  var options = {
    gltfUpAxis: layer.tileset.asset.gltfUpAxis,
    urlBase: urlBase,
    overrideMaterials: layer.overrideMaterials,
    doNotPatchMaterial: layer.doNotPatchMaterial,
    opacity: layer.opacity,
    registeredExtensions: layer.registeredExtensions,
    layer: layer
  };
  return _B3dmParser["default"].parse(data, options).then(function (result) {
    var batchTable = result.batchTable; // object3d is actually a THREE.Scene

    var object3d = result.gltf.scene;
    return {
      batchTable: batchTable,
      object3d: object3d
    };
  });
}

function pntsParse(data, layer) {
  return _PntsParser["default"].parse(data, layer.registeredExtensions).then(function (result) {
    var material = layer.material ? layer.material.clone() : new THREE.PointsMaterial({
      size: 0.05,
      vertexColors: true
    }); // creation points with geometry and material

    var points = new THREE.Points(result.point.geometry, material);

    if (result.point.offset) {
      points.position.copy(result.point.offset);
    }

    return {
      object3d: points
    };
  });
}

function configureTile(tile, layer, metadata, parent) {
  tile.frustumCulled = false;
  tile.layer = layer; // parse metadata

  if (metadata.transform) {
    tile.applyMatrix4(metadata.transform);
  }

  tile.geometricError = metadata.geometricError;
  tile.tileId = metadata.tileId;

  if (metadata.refine) {
    tile.additiveRefinement = metadata.refine.toUpperCase() === 'ADD';
  } else {
    tile.additiveRefinement = parent ? parent.additiveRefinement : false;
  }

  tile.viewerRequestVolume = metadata.viewerRequestVolume;
  tile.boundingVolume = metadata.boundingVolume;

  if (tile.boundingVolume.region) {
    tile.add(tile.boundingVolume.region);
  }

  tile.updateMatrixWorld();
}

function executeCommand(command) {
  var layer = command.layer;
  var metadata = command.metadata;
  var tile = new THREE.Object3D();
  configureTile(tile, layer, metadata, command.requester); // Patch for supporting 3D Tiles pre 1.0 (metadata.content.url) and 1.0
  // (metadata.content.uri)

  var path = metadata.content && (metadata.content.url || metadata.content.uri);

  var setLayer = function (obj) {
    obj.layers.set(layer.threejsLayer);
    obj.userData.metadata = metadata;
    obj.layer = layer;
  };

  if (path) {
    // Check if we have relative or absolute url (with tileset's lopocs for example)
    var url = path.startsWith('http') ? path : metadata.baseURL + path;
    var supportedFormats = {
      b3dm: b3dmToMesh,
      pnts: pntsParse
    };
    return _Fetcher["default"].arrayBuffer(url, layer.source.networkOptions).then(function (result) {
      if (result !== undefined) {
        var func;

        var magic = _Utf8Decoder["default"].decode(new Uint8Array(result, 0, 4));

        if (magic[0] === '{') {
          result = JSON.parse(_Utf8Decoder["default"].decode(new Uint8Array(result)));
          var newPrefix = url.slice(0, url.lastIndexOf('/') + 1);
          layer.tileset.extendTileset(result, metadata.tileId, newPrefix, layer.registeredExtensions);
        } else if (magic == 'b3dm') {
          func = supportedFormats.b3dm;
        } else if (magic == 'pnts') {
          func = supportedFormats.pnts;
        } else {
          return Promise.reject("Unsupported magic code ".concat(magic));
        }

        if (func) {
          // TODO: request should be delayed if there is a viewerRequestVolume
          return func(result, layer, url).then(function (content) {
            tile.content = content.object3d;

            if (content.batchTable) {
              tile.batchTable = content.batchTable;
            }

            tile.add(content.object3d);
            tile.traverse(setLayer);
            return tile;
          });
        }
      }

      tile.traverse(setLayer);
      return tile;
    });
  } else {
    tile.traverse(setLayer);
    return Promise.resolve(tile);
  }
}

var _default = {
  executeCommand: executeCommand
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Provider/DataSourceProvider.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Provider/DataSourceProvider.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;
var _default = {
  executeCommand: function executeCommand(command) {
    var layer = command.layer;
    var src = command.extentsSource;
    var dst = command.extentsDestination || src;
    return Promise.all(src.map(function (from, i) {
      return layer.getData(from, dst[i]);
    }));
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Provider/Fetcher.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Provider/Fetcher.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _three = __webpack_require__(/*! three */ "./node_modules/three/build/three.cjs");

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

var textureLoader = new _three.TextureLoader();
var SIZE_TEXTURE_TILE = 256;

function checkResponse(response) {
  if (!response.ok) {
    var error = new Error("Error loading ".concat(response.url, ": status ").concat(response.status));
    error.response = response;
    throw error;
  }
}

var arrayBuffer = function (url) {
  var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  return fetch(url, options).then(function (response) {
    checkResponse(response);
    return response.arrayBuffer();
  });
};

function getTextureFloat(buffer) {
  var isWebGL2 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

  if (isWebGL2) {
    var texture = new _three.DataTexture(buffer, SIZE_TEXTURE_TILE, SIZE_TEXTURE_TILE, _three.RedFormat, _three.FloatType);
    texture.internalFormat = 'R32F';
    texture.needsUpdate = true;
    return texture;
  } else {
    var _texture = new _three.DataTexture(buffer, SIZE_TEXTURE_TILE, SIZE_TEXTURE_TILE, _three.AlphaFormat, _three.FloatType);

    return _texture;
  }
}
/**
 * Utilitary to fetch resources from a server using the [fetch API]{@link
 * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch}.
 *
 * @module Fetcher
 */


var _default = {
  /**
   * Wrapper over fetch to get some text.
   *
   * @param {string} url - The URL of the resources to fetch.
   * @param {Object} options - Fetch options (passed directly to `fetch()`),
   * see [the syntax for more information]{@link
   * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Syntax}.
   *
   * @return {Promise<string>} Promise containing the text.
   */
  text: function text(url) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    return fetch(url, options).then(function (response) {
      checkResponse(response);
      return response.text();
    });
  },

  /**
   * Little wrapper over fetch to get some JSON.
   *
   * @param {string} url - The URL of the resources to fetch.
   * @param {Object} options - Fetch options (passed directly to `fetch()`),
   * see [the syntax for more information]{@link
   * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Syntax}.
   *
   * @return {Promise<Object>} Promise containing the JSON object.
   */
  json: function json(url) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    return fetch(url, options).then(function (response) {
      checkResponse(response);
      return response.json();
    });
  },

  /**
   * Wrapper over fetch to get some XML.
   *
   * @param {string} url - The URL of the resources to fetch.
   * @param {Object} options - Fetch options (passed directly to `fetch()`),
   * see [the syntax for more information]{@link
   * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Syntax}.
   *
   * @return {Promise<Document>} Promise containing the XML Document.
   */
  xml: function xml(url) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    return fetch(url, options).then(function (response) {
      checkResponse(response);
      return response.text();
    }).then(function (text) {
      return new window.DOMParser().parseFromString(text, 'text/xml');
    });
  },

  /**
   * Wrapper around {@link THREE.TextureLoader}.
   *
   * @param {string} url - The URL of the resources to fetch.
   * @param {Object} options - Fetch options (passed directly to `fetch()`),
   * see [the syntax for more information]{@link
   * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Syntax}.
   * Note that THREE.js docs mentions `withCredentials`, but it is not
   * actually used in {@link THREE.TextureLoader}.
   *
   * @return {Promise<THREE.Texture>} Promise containing the {@link
   * THREE.Texture}.
   */
  texture: function texture(url) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var res;
    var rej;
    textureLoader.crossOrigin = options.crossOrigin;
    var promise = new Promise(function (resolve, reject) {
      res = resolve;
      rej = reject;
    });
    textureLoader.load(url, res, function () {}, rej);
    return promise;
  },

  /**
   * Wrapper over fetch to get some ArrayBuffer.
   *
   * @param {string} url - The URL of the resources to fetch.
   * @param {Object} options - Fetch options (passed directly to `fetch()`),
   * see [the syntax for more information]{@link
   * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Syntax}.
   *
   * @return {Promise<ArrayBuffer>} Promise containing the ArrayBuffer.
   */
  arrayBuffer: arrayBuffer,

  /**
   * Wrapper over fetch to get some {@link THREE.DataTexture}.
   *
   * @param {string} url - The URL of the resources to fetch.
   * @param {Object} options - Fetch options (passed directly to `fetch()`),
   * see [the syntax for more information]{@link
   * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Syntax}.
   *
   * @return {Promise<THREE.DataTexture>} Promise containing the DataTexture.
   */
  textureFloat: function textureFloat(url) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    return arrayBuffer(url, options).then(function (buffer) {
      var floatArray = new Float32Array(buffer);
      var texture = getTextureFloat(floatArray, options.isWebGL2);
      return texture;
    });
  },

  /**
   * Wrapper over fetch to get a bunch of files sharing the same name, but
   * different extensions.
   *
   * @param {string} baseUrl - The shared URL of the resources to fetch.
   * @param {Object} extensions - An object containing arrays. The keys of
   * each of this array are available fetch type, such as `text`, `json` or
   * even `arrayBuffer`. The arrays contains the extensions to append after
   * the `baseUrl` (see example below).
   * @param {Object} options - Fetch options (passed directly to `fetch()`),
   * see [the syntax for more information]{@link
   * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Syntax}.
   *
   * @return {Promise[]} An array of promises, containing all the files,
   * organized by their extensions (see the example below).
   *
   * @example
   * itowns.Fetcher.multiple('http://geo.server/shapefile', {
   *     // will fetch:
   *     // - http://geo.server/shapefile.shp
   *     // - http://geo.server/shapefile.dbf
   *     // - http://geo.server/shapefile.shx
   *     // - http://geo.server/shapefile.prj
   *     arrayBuffer: ['shp', 'dbf', 'shx'],
   *     text: ['prj'],
   * }).then(function _(result) {
   *     // result looks like:
   *     result = {
   *         shp: ArrayBuffer
   *         dbf: ArrayBuffer
   *         shx: ArrayBuffer
   *         prj: string
   *     };
   * });
   */
  multiple: function multiple(baseUrl, extensions) {
    var _this = this;

    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var promises = [];
    var url;

    for (var fetchType in extensions) {
      if (!this[fetchType]) {
        throw new Error("".concat(fetchType, " is not a valid Fetcher method."));
      } else {
        var _iterator = _createForOfIteratorHelper(extensions[fetchType]),
            _step;

        try {
          var _loop = function () {
            var extension = _step.value;
            url = "".concat(baseUrl, ".").concat(extension);
            promises.push(_this[fetchType](url, options).then(function (result) {
              return {
                type: extension,
                result: result
              };
            }));
          };

          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            _loop();
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      }
    }

    return Promise.all(promises).then(function (result) {
      var all = {};

      var _iterator2 = _createForOfIteratorHelper(result),
          _step2;

      try {
        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
          var res = _step2.value;
          all[res.type] = res.result;
        }
      } catch (err) {
        _iterator2.e(err);
      } finally {
        _iterator2.f();
      }

      return Promise.resolve(all);
    });
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Provider/PointCloudProvider.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Provider/PointCloudProvider.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var nextuuid = 1;

function addPickingAttribute(points) {
  // generate unique id for picking
  var numPoints = points.geometry.attributes.position.count;
  var ids = new Uint8Array(4 * numPoints);
  var baseId = nextuuid++;

  if (numPoints > 0xffff || baseId > 0xffff) {
    // TODO: fixme
    console.warn('Currently picking is limited to Points with less than 65535 elements and less than 65535 Points instances');
    return points;
  }

  for (var i = 0; i < numPoints; i++) {
    // todo numpoints > 16bits
    var v = baseId << 16 | i;
    ids[4 * i + 0] = (v & 0xff000000) >> 24;
    ids[4 * i + 1] = (v & 0x00ff0000) >> 16;
    ids[4 * i + 2] = (v & 0x0000ff00) >> 8;
    ids[4 * i + 3] = (v & 0x000000ff) >> 0;
  }

  points.baseId = baseId;
  points.geometry.setAttribute('unique_id', new THREE.BufferAttribute(ids, 4, true));
  return points;
}

var _default = {
  executeCommand: function executeCommand(command) {
    var layer = command.layer;
    var node = command.requester;
    return node.load().then(function (geometry) {
      var points = new THREE.Points(geometry, layer.material);
      addPickingAttribute(points);
      points.frustumCulled = false;
      points.matrixAutoUpdate = false;

      if (!layer.isEntwinePointTileLayer) {
        points.position.copy(node.bbox.min);
        points.scale.copy(layer.scale);
      }

      points.updateMatrix();
      points.tightbbox = geometry.boundingBox.applyMatrix4(points.matrix);
      points.layers.set(layer.threejsLayer);
      points.layer = layer;
      points.extent = _Extent["default"].fromBox3(command.view.referenceCrs, node.bbox);
      points.userData.node = node;
      return points;
    });
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Provider/TileProvider.js":
/*!**********************************************************!*\
  !*** ./node_modules/itowns/lib/Provider/TileProvider.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _CancelledCommandException = _interopRequireDefault(__webpack_require__(/*! ../Core/Scheduler/CancelledCommandException */ "./node_modules/itowns/lib/Core/Scheduler/CancelledCommandException.js"));

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

var _default = {
  executeCommand: function executeCommand(command) {
    var promises = [];
    var layer = command.layer;
    var requester = command.requester;
    var extentsSource = command.extentsSource;

    if (requester && !requester.material) {
      return Promise.reject(new _CancelledCommandException["default"](command));
    }

    var _iterator = _createForOfIteratorHelper(extentsSource),
        _step;

    try {
      for (_iterator.s(); !(_step = _iterator.n()).done;) {
        var extent = _step.value;
        promises.push(layer.convert(requester, extent));
      }
    } catch (err) {
      _iterator.e(err);
    } finally {
      _iterator.f();
    }

    return Promise.all(promises);
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Provider/URLBuilder.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Provider/URLBuilder.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var extent = new _Extent["default"]('EPSG:4326', [0, 0, 0, 0]);
var subDomainsCount = 0;

function subDomains(url) {
  var subDomainsPtrn = /\$\{u:([\w-_.|]+)\}/.exec(url);

  if (!subDomainsPtrn) {
    return url;
  }

  var subDomainsList = subDomainsPtrn[1].split('|');
  return url.replace(subDomainsPtrn[0], subDomainsList[subDomainsCount++ % subDomainsList.length]);
}
/**
 * This module performs basic operations around urls, to replace some elements
 * in it by coordinates or other things.
 *
 * In an url, it is also possible to specify subdomains alternatives using the
 * `${u:a|b|c}` pattern, by separating differents options using `|`. It will go
 * through the following alternative each time (no random). For example
 * `https://${u:xyz.org|yzx.org|zxy.org}/${z}/${x}/${y}.png` or
 * `https://${u:a|b|c}.tile.openstreetmap.org/${z}/${x}/${y}.png`.
 *
 * @module URLBuilder
 */


var _default = {
  /**
   * Builds an URL knowing the coordinates and the source to query.
   * <br><br>
   * The source object needs to have an url property, which should have some
   * specific strings that will be replaced by coordinates.
   * <ul>
   * <li>`${x}` or `%COL` will be replaced by `coords.col`</li>
   * <li>`${y}` or `%ROW` will be replaced by `coords.row`</li>
   * <li>`${z}` or `%TILEMATRIX` will be replaced by `coords.zoom`</li>
   * </ul>
   *
   * @example
   * coords = new Extent(CRS.formatToTms('EPSG:4326'), 12, 1410, 2072);
   * source.url = 'http://server.geo/wmts/SERVICE=WMTS&TILEMATRIX=%TILEMATRIX&TILEROW=%ROW&TILECOL=%COL';
   * url = URLBuilder.xyz(coords, source);
   *
   * // The resulting url is:
   * // http://server.geo/wmts/SERVICE=WMTS&TILEMATRIX=12&TILEROW=1410&TILECOL=2072;
   *
   * @example
   * coords = new Extent('TMS', 15, 2142, 3412);
   * source.url = 'http://server.geo/tms/${z}/${y}/${x}.jpg';
   * url = URLBuilder.xyz(coords, source);
   *
   * // The resulting url is:
   * // http://server.geo/tms/15/2142/3412.jpg;
   *
   * @param {Extent} coords - the coordinates
   * @param {Source} source
   *
   * @return {string} the formed url
   */
  xyz: function (coords, source) {
    return subDomains(source.url.replace(/(\$\{z\}|%TILEMATRIX)/, source.tileMatrixCallback(coords.zoom)).replace(/(\$\{y\}|%ROW)/, coords.row).replace(/(\$\{x\}|%COL)/, coords.col));
  },

  /**
   * Builds an URL knowing the bounding box and the source to query.
   * <br><br>
   * The source object needs to have an url property, which should have the
   * string `%bbox` in it. This string will be replaced by the four cardinal
   * points composing the bounding box.
   * <br><br>
   * Order of the points can be specified in the `axisOrder` property in
   * source, using the letters `w, s, e, n` respectively for `WEST, SOUTH,
   * EAST, NORTH`. The default order is `wsen`.
   *
   * @example
   * extent = new Extent('EPSG:4326', 12, 14, 35, 46);
   * source.crs = 'EPSG:4326';
   * source.url = 'http://server.geo/wms/BBOX=%bbox&FORMAT=jpg&SERVICE=WMS';
   * url = URLBuilder.bbox(extent, source);
   *
   * // The resulting url is:
   * // http://server.geo/wms/BBOX=12,35,14,46&FORMAT=jpg&SERVICE=WMS
   *
   * @param {Extent} bbox - the bounding box
   * @param {Source} source
   *
   * @return {string} the formed url
   */
  bbox: function (bbox, source) {
    var precision = source.crs == 'EPSG:4326' ? 9 : 2;
    bbox.as(source.crs, extent);
    var w = extent.west.toFixed(precision);
    var s = extent.south.toFixed(precision);
    var e = extent.east.toFixed(precision);
    var n = extent.north.toFixed(precision);
    var bboxInUnit = source.axisOrder || 'wsen';
    bboxInUnit = bboxInUnit.replace('w', "".concat(w, ",")).replace('s', "".concat(s, ",")).replace('e', "".concat(e, ",")).replace('n', "".concat(n, ",")).slice(0, -1);
    return subDomains(source.url.replace('%bbox', bboxInUnit));
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/Camera.js":
/*!****************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/Camera.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.CAMERA_TYPE = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

var _classPrivateFieldSet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldSet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _DEMUtils = _interopRequireDefault(__webpack_require__(/*! ../Utils/DEMUtils */ "./node_modules/itowns/lib/Utils/DEMUtils.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

/**
 * @typedef     {object}    Camera~CAMERA_TYPE
 * Stores the different types of camera usable in iTowns.
 *
 * @property    {number}    PERSPECTIVE     Perspective type of camera
 * @property    {number}    ORTHOGRAPHIC    Orthographic type of camera
 */
var CAMERA_TYPE = {
  PERSPECTIVE: 0,
  ORTHOGRAPHIC: 1
};
exports.CAMERA_TYPE = CAMERA_TYPE;
var tmp = {
  frustum: new THREE.Frustum(),
  matrix: new THREE.Matrix4(),
  box3: new THREE.Box3()
};
var ndcBox3 = new THREE.Box3(new THREE.Vector3(-1, -1, -1), new THREE.Vector3(1, 1, 1));

function updatePreSse(camera, height, fov) {
  // sse = projected geometric error on screen plane from distance
  // We're using an approximation, assuming that the geometric error of all
  // objects is perpendicular to the camera view vector (= we always compute
  // for worst case).
  //
  //            screen plane             object
  //               |                         __
  //               |                        /  \
  //               |             geometric{|
  //  < fov angle  . } sse          error {|    |
  //               |                        \__/
  //               |
  //               |<--------------------->
  //               |        distance
  //
  //              geometric_error * screen_width      (resp. screen_height)
  //     =  ---------------------------------------
  //        2 * distance * tan (horizontal_fov / 2)   (resp. vertical_fov)
  //
  //
  // We pre-compute the preSSE (= constant part of the screen space error formula) once here
  // Note: the preSSE for the horizontal FOV is the same value
  // focal = (this.height * 0.5) / Math.tan(verticalFOV * 0.5);
  // horizontalFOV = 2 * Math.atan(this.width * 0.5 / focal);
  // horizontalPreSSE = this.width / (2.0 * Math.tan(horizontalFOV * 0.5)); (1)
  // => replacing horizontalFOV in Math.tan(horizontalFOV * 0.5)
  // Math.tan(horizontalFOV * 0.5) = Math.tan(2 * Math.atan(this.width * 0.5 / focal) * 0.5)
  //                               = Math.tan(Math.atan(this.width * 0.5 / focal))
  //                               = this.width * 0.5 / focal
  // => now replacing focal
  //                               = this.width * 0.5 / (this.height * 0.5) / Math.tan(verticalFOV * 0.5)
  //                               = Math.tan(verticalFOV * 0.5) * this.width / this.height
  // => back to (1)
  // horizontalPreSSE = this.width / (2.0 * Math.tan(verticalFOV * 0.5) * this.width / this.height)
  //                  = this.height / 2.0 * Math.tan(verticalFOV * 0.5)
  //                  = verticalPreSSE
  if (camera.camera3D.isOrthographicCamera) {
    camera._preSSE = height;
  } else {
    var verticalFOV = THREE.MathUtils.degToRad(fov);
    camera._preSSE = height / (2.0 * Math.tan(verticalFOV * 0.5));
  }
}
/**
 * Wrapper around Three.js camera to expose some geographic helpers.
 *
 * @property    {string}    crs             The camera's coordinate projection system.
 * @property    {object}    camera3D        The Three.js camera that is wrapped around.
 * @property    {number}    width           The width of the camera.
 * @property    {number}    height          The height of the camera.
 * @property    {number}    _preSSE         The precomputed constant part of the screen space error.
 */


var _viewMatrixNeedsUpdate = /*#__PURE__*/new WeakMap();

var _viewMatrix = /*#__PURE__*/new WeakMap();

var Camera = /*#__PURE__*/function () {
  /**
   * @param   {string}                crs                                     The camera's coordinate projection system.
   * @param   {number}                width                                   The width (in pixels) of the view the
      * camera is associated to.
   * @param   {number}                height                                  The height (in pixels) of the view the
      * camera is associated to.
   * @param   {object}                [options]                               Options for the camera.
   * @param   {THREE.Camera}          [options.cameraThree]                   A custom Three.js camera object to wrap
      * around.
   * @param   {Camera~CAMERA_TYPE}    [options.type=CAMERA_TYPE.PERSPECTIVE]  The type of the camera. See {@link
      * CAMERA_TYPE}.
   * @constructor
   */
  function Camera(crs, width, height) {
    var _this$camera3D$aspect,
        _this = this;

    var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
    (0, _classCallCheck2["default"])(this, Camera);

    _classPrivateFieldInitSpec(this, _viewMatrixNeedsUpdate, {
      writable: true,
      value: true
    });

    _classPrivateFieldInitSpec(this, _viewMatrix, {
      writable: true,
      value: new THREE.Matrix4()
    });

    this.crs = crs;

    if (options.isCamera) {
      console.warn('options.camera parameter is deprecated. Use options.camera.cameraThree to place a custom ' + 'camera as a parameter. See the documentation of Camera.');
      this.camera3D = options;
    } else if (options.cameraThree) {
      this.camera3D = options.cameraThree;
    } else {
      switch (options.type) {
        case CAMERA_TYPE.ORTHOGRAPHIC:
          this.camera3D = new THREE.OrthographicCamera();
          break;

        case CAMERA_TYPE.PERSPECTIVE:
        default:
          this.camera3D = new THREE.PerspectiveCamera(30);
          break;
      }
    }

    this.camera3D.aspect = (_this$camera3D$aspect = this.camera3D.aspect) !== null && _this$camera3D$aspect !== void 0 ? _this$camera3D$aspect : 1;
    this.width = width;
    this.height = height;
    this.resize(width, height);
    this._preSSE = Infinity;

    if (this.camera3D.isPerspectiveCamera) {
      var fov = this.camera3D.fov;
      Object.defineProperty(this.camera3D, 'fov', {
        get: function get() {
          return fov;
        },
        set: function set(newFov) {
          fov = newFov;
          updatePreSse(_this, _this.height, fov);
        }
      });
    }
  }
  /**
   * Resize the camera to a given width and height
   *
   * @param   {number}    width               The width to resize the camera to.
   * @param   {number}    height              The height to resize the camera to.
   */


  (0, _createClass2["default"])(Camera, [{
    key: "resize",
    value: function resize(width, height) {
      var ratio = width / height;

      if (this.camera3D.aspect !== ratio) {
        if (this.camera3D.isOrthographicCamera) {
          this.camera3D.zoom *= this.width / width;
          var halfH = this.camera3D.top * this.camera3D.aspect / ratio;
          this.camera3D.bottom = -halfH;
          this.camera3D.top = halfH;
        } else if (this.camera3D.isPerspectiveCamera) {
          this.camera3D.fov = 2 * THREE.Math.radToDeg(Math.atan(height / this.height * Math.tan(THREE.Math.degToRad(this.camera3D.fov) / 2)));
        }

        this.camera3D.aspect = ratio;
      }

      this.width = width;
      this.height = height;
      updatePreSse(this, this.height, this.camera3D.fov);

      if (this.camera3D.updateProjectionMatrix) {
        this.camera3D.updateProjectionMatrix();
        (0, _classPrivateFieldSet2["default"])(this, _viewMatrixNeedsUpdate, true);
      }
    }
  }, {
    key: "update",
    value: function update() {
      // update matrix
      this.camera3D.updateMatrixWorld();
      (0, _classPrivateFieldSet2["default"])(this, _viewMatrixNeedsUpdate, true);
    }
    /**
     * Return the position in the requested CRS, or in camera's CRS if undefined.
     *
     * @param   {string}        [crs]   If defined (e.g 'EPSG:4326'), the camera position will be returned in this CRS.
     *
     * @return  {Coordinates}   Coordinates object holding camera's position.
     */

  }, {
    key: "position",
    value: function position(crs) {
      return new _Coordinates["default"](this.crs, this.camera3D.position).as(crs || this.crs);
    }
    /**
     * Set the position of the camera using a Coordinates object.
     * If you want to modify the position directly using x,y,z values then use `camera.camera3D.position.set(x, y, z)`
     *
     * @param   {Coordinates}   position    The new position of the camera.
     */

  }, {
    key: "setPosition",
    value: function setPosition(position) {
      this.camera3D.position.copy(position.as(this.crs));
    }
  }, {
    key: "isBox3Visible",
    value: function isBox3Visible(box3, matrixWorld) {
      return this.box3SizeOnScreen(box3, matrixWorld).intersectsBox(ndcBox3);
    }
  }, {
    key: "isSphereVisible",
    value: function isSphereVisible(sphere, matrixWorld) {
      if ((0, _classPrivateFieldGet2["default"])(this, _viewMatrixNeedsUpdate)) {
        // update visibility testing matrix
        (0, _classPrivateFieldGet2["default"])(this, _viewMatrix).multiplyMatrices(this.camera3D.projectionMatrix, this.camera3D.matrixWorldInverse);
        (0, _classPrivateFieldSet2["default"])(this, _viewMatrixNeedsUpdate, false);
      }

      if (matrixWorld) {
        tmp.matrix.multiplyMatrices((0, _classPrivateFieldGet2["default"])(this, _viewMatrix), matrixWorld);
        tmp.frustum.setFromProjectionMatrix(tmp.matrix);
      } else {
        tmp.frustum.setFromProjectionMatrix((0, _classPrivateFieldGet2["default"])(this, _viewMatrix));
      }

      return tmp.frustum.intersectsSphere(sphere);
    }
  }, {
    key: "box3SizeOnScreen",
    value: function box3SizeOnScreen(box3, matrixWorld) {
      var pts = projectBox3PointsInCameraSpace(this, box3, matrixWorld); // All points are in front of the near plane -> box3 is invisible

      if (!pts) {
        return tmp.box3.makeEmpty();
      } // Project points on screen


      for (var i = 0; i < 8; i++) {
        pts[i].applyMatrix4(this.camera3D.projectionMatrix);
      }

      return tmp.box3.setFromPoints(pts);
    }
    /**
     * Test for collision between camera and a geometry layer (DTM/DSM) to adjust camera position.
     * It could be modified later to handle an array of geometry layers.
     * TODO Improve Coordinates class to handle altitude for any coordinate system (even projected one)
     *
     * @param   {View}              view                    The view where we test the collision between geometry layers
     * and the camera
     * @param   {ElevationLayer}    elevationLayer          The elevation layer (DTM/DSM) used to test the collision
     * with the camera. Could be another geometry layer.
     * @param   {number}            minDistanceCollision    The minimum distance allowed between the camera and the
     * surface.
     */

  }, {
    key: "adjustAltitudeToAvoidCollisionWithLayer",
    value: function adjustAltitudeToAvoidCollisionWithLayer(view, elevationLayer, minDistanceCollision) {
      // We put the camera location in geographic by default to easily handle altitude.
      // (Should be improved in Coordinates class for all ref)
      var camLocation = view.camera.position().as('EPSG:4326');

      if (elevationLayer !== undefined) {
        var elevationUnderCamera = _DEMUtils["default"].getElevationValueAt(elevationLayer, camLocation);

        if (elevationUnderCamera !== undefined) {
          var difElevation = camLocation.altitude - (elevationUnderCamera + minDistanceCollision); // We move the camera to avoid collision if too close to terrain

          if (difElevation < 0) {
            camLocation.altitude = elevationUnderCamera + minDistanceCollision;
            view.camera.camera3D.position.copy(camLocation.as(view.referenceCrs));
            view.notifyChange(this.camera3D);
          }
        }
      }
    }
  }]);
  return Camera;
}();

var points = [new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3(), new THREE.Vector3()];

function projectBox3PointsInCameraSpace(camera, box3, matrixWorld) {
  // Projects points in camera space
  // We don't project directly on screen to avoid artifacts when projecting
  // points behind the near plane.
  var m = camera.camera3D.matrixWorldInverse;

  if (matrixWorld) {
    m = tmp.matrix.multiplyMatrices(camera.camera3D.matrixWorldInverse, matrixWorld);
  }

  points[0].set(box3.min.x, box3.min.y, box3.min.z).applyMatrix4(m);
  points[1].set(box3.min.x, box3.min.y, box3.max.z).applyMatrix4(m);
  points[2].set(box3.min.x, box3.max.y, box3.min.z).applyMatrix4(m);
  points[3].set(box3.min.x, box3.max.y, box3.max.z).applyMatrix4(m);
  points[4].set(box3.max.x, box3.min.y, box3.min.z).applyMatrix4(m);
  points[5].set(box3.max.x, box3.min.y, box3.max.z).applyMatrix4(m);
  points[6].set(box3.max.x, box3.max.y, box3.min.z).applyMatrix4(m);
  points[7].set(box3.max.x, box3.max.y, box3.max.z).applyMatrix4(m); // In camera space objects are along the -Z axis
  // So if min.z is > -near, the object is invisible

  var atLeastOneInFrontOfNearPlane = false;

  for (var i = 0; i < 8; i++) {
    if (points[i].z <= -camera.camera3D.near) {
      atLeastOneInFrontOfNearPlane = true;
    } else {
      // Clamp to near plane
      points[i].z = -camera.camera3D.near;
    }
  }

  return atLeastOneInFrontOfNearPlane ? points : undefined;
}

var _default = Camera;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/ColorLayersOrdering.js":
/*!*****************************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/ColorLayersOrdering.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.COLOR_LAYERS_ORDER_CHANGED = void 0;

var _Layer = __webpack_require__(/*! ../Layer/Layer */ "./node_modules/itowns/lib/Layer/Layer.js");

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function updateLayersOrdering(geometryLayer, imageryLayers) {
  var sequence = _Layer.ImageryLayers.getColorLayersIdOrderedBySequence(imageryLayers);

  var cO = function (object) {
    var _object$material;

    if ((_object$material = object.material) !== null && _object$material !== void 0 && _object$material.setSequence) {
      object.material.setSequence(sequence);
    }
  };

  var _iterator = _createForOfIteratorHelper(geometryLayer.level0Nodes),
      _step;

  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var node = _step.value;
      node.traverse(cO);
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
}

var COLOR_LAYERS_ORDER_CHANGED = 'layers-order-changed';
/**
 * Utilitary to organize {@link ColorLayer} in a {@link View}.
 *
 * @module ColorLayersOrdering
 */

exports.COLOR_LAYERS_ORDER_CHANGED = COLOR_LAYERS_ORDER_CHANGED;
var _default = {
  /**
   * Moves up in the layer list. This function has no effect if the layer is
   * moved to its current index.
   *
   * @param {View} view - The view in which the layer is moved up.
   * @param {string} layerId - The ID of the layer to move.
   *
   * @example
   * itowns.ColorLayersOrdering.moveLayerUp(viewer, 'idLayerToUp');
   */
  moveLayerUp: function moveLayerUp(view, layerId) {
    var imageryLayers = view.getLayers(function (l) {
      return l.isColorLayer;
    });
    var layer = view.getLayerById(layerId);

    if (layer) {
      var previousSequence = _Layer.ImageryLayers.getColorLayersIdOrderedBySequence(imageryLayers);

      _Layer.ImageryLayers.moveLayerUp(layer, imageryLayers);

      updateLayersOrdering(view.tileLayer, imageryLayers);
      view.dispatchEvent({
        type: COLOR_LAYERS_ORDER_CHANGED,
        previous: {
          sequence: previousSequence
        },
        "new": {
          sequence: _Layer.ImageryLayers.getColorLayersIdOrderedBySequence(imageryLayers)
        }
      });
      view.notifyChange(view.tileLayer);
    } else {
      throw new Error("".concat(layerId, " isn't color layer"));
    }
  },

  /**
   * Moves down in the layer list. This function has no effect if the layer is
   * moved to its current index.
   *
   * @param {View} view - The view in which the layer is moved down.
   * @param {string} layerId - The ID of the layer to move.
   *
   * @example
   * itowns.ColorLayersOrdering.moveLayerDown(viewer, 'idLayerToDown');
   */
  moveLayerDown: function moveLayerDown(view, layerId) {
    var imageryLayers = view.getLayers(function (l) {
      return l.isColorLayer;
    });
    var layer = view.getLayerById(layerId);

    if (layer) {
      var previousSequence = _Layer.ImageryLayers.getColorLayersIdOrderedBySequence(imageryLayers);

      _Layer.ImageryLayers.moveLayerDown(layer, imageryLayers);

      updateLayersOrdering(view.tileLayer, imageryLayers);
      view.dispatchEvent({
        type: COLOR_LAYERS_ORDER_CHANGED,
        previous: {
          sequence: previousSequence
        },
        "new": {
          sequence: _Layer.ImageryLayers.getColorLayersIdOrderedBySequence(imageryLayers)
        }
      });
      view.notifyChange(view.tileLayer);
    } else {
      throw new Error("".concat(layerId, " isn't color layer"));
    }
  },

  /**
   * Moves a specific layer to a specific index in the layer list. This
   * function has no effect if the layer is moved to its current index.
   *
   * @param {View} view - The view in which the layer is moved.
   * @param {string} layerId - The ID of the layer to move.
   * @param {number} index - The index to move the layer to.
   *
   * @example
   * itowns.ColorLayersOrdering.moveLayerToIndex(viewer, 'idLayerToChangeIndex', 2);
   */
  moveLayerToIndex: function moveLayerToIndex(view, layerId, index) {
    var imageryLayers = view.getLayers(function (l) {
      return l.isColorLayer;
    });
    var layer = view.getLayerById(layerId);

    if (layer) {
      var previousSequence = _Layer.ImageryLayers.getColorLayersIdOrderedBySequence(imageryLayers);

      _Layer.ImageryLayers.moveLayerToIndex(layer, index, imageryLayers);

      updateLayersOrdering(view.tileLayer, imageryLayers);
      view.dispatchEvent({
        type: COLOR_LAYERS_ORDER_CHANGED,
        previous: {
          sequence: previousSequence
        },
        "new": {
          sequence: _Layer.ImageryLayers.getColorLayersIdOrderedBySequence(imageryLayers)
        }
      });
      view.notifyChange(view.tileLayer);
    } else {
      throw new Error("".concat(layerId, " isn't color layer"));
    }
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/CommonMaterial.js":
/*!************************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/CommonMaterial.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var _default = {
  setDefineMapping: function setDefineMapping(object, PROPERTY, mapping) {
    Object.keys(mapping).forEach(function (key) {
      object.defines["".concat(PROPERTY, "_").concat(key)] = mapping[key];
    });
  },
  setDefineProperty: function setDefineProperty(object, property, PROPERTY, initValue) {
    object.defines[PROPERTY] = initValue;
    Object.defineProperty(object, property, {
      get: function get() {
        return object.defines[PROPERTY];
      },
      set: function set(value) {
        if (object.defines[PROPERTY] != value) {
          object.defines[PROPERTY] = value;
          object.needsUpdate = true;
        }
      }
    });
  },
  setUniformProperty: function setUniformProperty(object, property, initValue) {
    object.uniforms[property] = new THREE.Uniform(initValue);
    Object.defineProperty(object, property, {
      get: function get() {
        return object.uniforms[property].value;
      },
      set: function set(value) {
        if (object.uniforms[property].value != value) {
          object.uniforms[property].value = value;
        }
      }
    });
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/Label2DRenderer.js":
/*!*************************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/Label2DRenderer.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function isIntersectedOrOverlaped(a, b) {
  return !(a.left > b.right || a.right < b.left || a.top > b.bottom || a.bottom < b.top);
} // find label in children


function hasLabelChildren(object) {
  var parent = object.parent;
  return parent.material && !parent.material.visible && parent.children.find(function (c) {
    return c.isTileMesh && c.children.find(function (cc) {
      return cc.isLabel;
    });
  });
}

var frustum = new THREE.Frustum(); // A grid to manage labels on the screen.

var ScreenGrid = /*#__PURE__*/function () {
  function ScreenGrid() {
    var x = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 12;
    var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 10;
    var width = arguments.length > 2 ? arguments[2] : undefined;
    var height = arguments.length > 3 ? arguments[3] : undefined;
    (0, _classCallCheck2["default"])(this, ScreenGrid);
    this.x = x;
    this.y = y;
    this.grid = [];
    this.hidden = [];
    this.visible = [];
    this.resize();
    this.reset();
    this.width = width;
    this.height = height;
  } // Reset each cell and hidden and visible.


  (0, _createClass2["default"])(ScreenGrid, [{
    key: "reset",
    value: function reset() {
      for (var i = 0; i < this.x; i++) {
        for (var j = 0; j < this.y; j++) {
          // Splice is prefered to creating a new array, in term of memory
          this.grid[i][j].splice(0, this.grid[i][j].length);
        }
      }

      this.hidden = [];
      this.visible = [];
    } // Add rows if needed — but don't delete anything else. Columns are taken
    // care in reset().

  }, {
    key: "resize",
    value: function resize() {
      for (var i = 0; i < this.x; i++) {
        if (!this.grid[i]) {
          this.grid[i] = [];
        }

        for (var j = 0; j < this.y; j++) {
          if (!this.grid[i][j]) {
            this.grid[i][j] = [];
          }
        }
      }
    } // Insert a label using its boundaries. It is either added to hidden or
    // visible, given the result. The grid is populated with true for every
    // filled cell.

  }, {
    key: "insert",
    value: function insert(obj) {
      var minx = Math.max(0, Math.floor(obj.boundaries.left / this.width * this.x));
      var maxx = Math.min(this.x - 1, Math.floor(obj.boundaries.right / this.width * this.x));
      var miny = Math.max(0, Math.floor(obj.boundaries.top / this.height * this.y));
      var maxy = Math.min(this.y - 1, Math.floor(obj.boundaries.bottom / this.height * this.y));

      for (var i = minx; i <= maxx; i++) {
        for (var j = miny; j <= maxy; j++) {
          if (this.grid[i][j].length > 0) {
            if (this.grid[i][j].some(function (l) {
              return isIntersectedOrOverlaped(l.boundaries, obj.boundaries);
            })) {
              this.hidden.push(obj);
              return false;
            }
          }
        }
      }

      for (var _i = minx; _i <= maxx; _i++) {
        for (var _j = miny; _j <= maxy; _j++) {
          this.grid[_i][_j].push(obj);
        }
      }

      return true;
    }
  }]);
  return ScreenGrid;
}();

var worldPosition = new THREE.Vector3();
/**
 * This renderer is inspired by the
 * [`THREE.CSS2DRenderer`](https://threejs.org/docs/#examples/en/renderers/CSS2DRenderer).
 * It is instanciated in `c3DEngine`, as another renderer to handles Labels.
 */

var Label2DRenderer = /*#__PURE__*/function () {
  function Label2DRenderer() {
    (0, _classCallCheck2["default"])(this, Label2DRenderer);
    this.domElement = document.createElement('div');
    this.domElement.style.overflow = 'hidden';
    this.domElement.style.position = 'absolute';
    this.domElement.style.top = '0';
    this.domElement.style.height = '100%';
    this.domElement.style.width = '100%';
    this.domElement.style.zIndex = 1; // Used to destroy labels that are not added to the DOM

    this.garbage = document.createElement('div');
    this.garbage.style.display = 'none';
    this.domElement.appendChild(this.garbage);
    this.halfWidth = 0;
    this.halfHeight = 0;
    this.grid = new ScreenGrid();
    this.infoTileLayer = undefined;
  }

  (0, _createClass2["default"])(Label2DRenderer, [{
    key: "setSize",
    value: function setSize(width, height) {
      this.domElement.style.width = "".concat(width);
      this.domElement.style.height = "".concat(height);
      this.halfWidth = width / 2;
      this.halfHeight = height / 2;
      this.grid.width = width;
      this.grid.height = height;
      this.grid.x = Math.ceil(width / 20);
      this.grid.y = Math.ceil(height / 20);
      this.grid.resize();
    }
  }, {
    key: "registerLayer",
    value: function registerLayer(layer) {
      this.domElement.appendChild(layer.domElement);
    }
  }, {
    key: "render",
    value: function render(scene, camera) {
      var _this = this;

      if (!this.infoTileLayer || !this.infoTileLayer.layer.attachedLayers.find(function (l) {
        return l.isLabelLayer && l.visible;
      })) {
        return;
      }

      this.grid.reset(); // set camera frustum

      frustum.setFromProjectionMatrix(camera.projectionMatrix);
      this.culling(scene, this.infoTileLayer.displayed.extent, camera); // sort by order, then by visibility inside those subsets
      // https://docs.mapbox.com/help/troubleshooting/optimize-map-label-placement/#label-hierarchy

      this.grid.visible.sort(function (a, b) {
        var r = b.order - a.order;

        if (r == 0) {
          if (!a.visible && b.visible) {
            return 1;
          } else {
            return -1;
          }
        } else {
          return r;
        }
      });
      this.grid.visible.forEach(function (l) {
        if (_this.grid.insert(l)) {
          l.visible = true;
          l.updateCSSPosition();
        }
      });
      this.grid.hidden.forEach(function (label) {
        label.visible = false;
      });
    }
  }, {
    key: "culling",
    value: function culling(object, extent, camera) {
      var _this2 = this;

      if (!object.isLabel) {
        if (!object.visible) {
          this.hideNodeDOM(object);
          return; // Don't go further if the node can't be in the screen space (it
          // does not need to be rendered to continue the culling)
        } else if (object.extent && !object.extent.intersectsExtent(extent)) {
          this.hideNodeDOM(object);
          return;
        }

        this.showNodeDOM(object);
        object.children.forEach(function (c) {
          return _this2.culling(c, extent, camera);
        }); // the presence of the label inside the visible extent and if children has label, we can filter more labels.
      } else if (!extent.isPointInside(object.coordinates) || hasLabelChildren(object)) {
        this.grid.hidden.push(object); // the presence of the label inside frustum camera.
      } else if (!frustum.containsPoint(object.getWorldPosition(worldPosition).applyMatrix4(camera.matrixWorldInverse))) {
        this.grid.hidden.push(object); // Do some horizon culling (if possible) if the tiles level is small
        // enough. The chosen value of 4 seems to provide a good result.
      } else if (object.parent.level < 4 && object.parent.layer.horizonCulling && object.parent.layer.horizonCulling(object.horizonCullingPoint)) {
        this.grid.hidden.push(object);
      } else {
        // projecting world position object
        worldPosition.applyMatrix4(camera.projectionMatrix);
        object.updateProjectedPosition(worldPosition.x * this.halfWidth + this.halfWidth, -worldPosition.y * this.halfHeight + this.halfHeight); // Are considered duplicates, labels that have the same screen
        // coordinates and the same base content.

        if (this.grid.visible.some(function (l) {
          return l.projectedPosition.x == object.projectedPosition.x && l.projectedPosition.y == object.projectedPosition.y && l.baseContent == object.baseContent;
        })) {
          object.parent.remove(object);
          this.grid.hidden.push(object);
        } else {
          this.grid.visible.push(object);
        }
      }
    }
  }, {
    key: "removeLabelDOM",
    value: function removeLabelDOM(label) {
      this.garbage.appendChild(label.content);
      this.garbage.innerHTML = '';
    }
  }, {
    key: "hideNodeDOM",
    value: function hideNodeDOM(node) {
      var _this3 = this;

      if (node.domElements) {
        var domElements = Object.values(node.domElements);

        if (domElements.length > 0) {
          domElements.forEach(function (domElement) {
            if (domElement.visible == true) {
              domElement.dom.style.display = 'none';
              domElement.visible = false;
            }
          });
        } else {
          node.children.filter(function (n) {
            return n.isTileMesh;
          }).forEach(function (n) {
            return _this3.hideNodeDOM(n);
          });
        }
      }
    }
  }, {
    key: "showNodeDOM",
    value: function showNodeDOM(node) {
      if (node.domElements) {
        Object.values(node.domElements).forEach(function (domElement) {
          if (domElement.visible == false) {
            domElement.dom.style.display = 'block';
            domElement.visible = true;
          }
        });
      }
    }
  }]);
  return Label2DRenderer;
}();

var _default = Label2DRenderer;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/LayeredMaterial.js":
/*!*************************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/LayeredMaterial.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.colorLayerEffects = exports.ELEVATION_MODES = void 0;
exports.getMaxColorSamplerUnitsCount = getMaxColorSamplerUnitsCount;
exports.unpack1K = unpack1K;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classPrivateFieldSet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldSet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _ShaderUtils = _interopRequireDefault(__webpack_require__(/*! ./Shader/ShaderUtils */ "./node_modules/itowns/lib/Renderer/Shader/ShaderUtils.js"));

var _Capabilities = _interopRequireDefault(__webpack_require__(/*! ../Core/System/Capabilities */ "./node_modules/itowns/lib/Core/System/Capabilities.js"));

var _RenderMode = _interopRequireDefault(__webpack_require__(/*! ./RenderMode */ "./node_modules/itowns/lib/Renderer/RenderMode.js"));

var _CommonMaterial = _interopRequireDefault(__webpack_require__(/*! ./CommonMaterial */ "./node_modules/itowns/lib/Renderer/CommonMaterial.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

/* babel-plugin-inline-import './Shader/TileVS.glsl' */
var TileVS = "#include <itowns/WebGL2_pars_vertex>\n#include <itowns/precision_qualifier>\n#include <common>\n#include <itowns/project_pars_vertex>\n#include <itowns/elevation_pars_vertex>\n#include <logdepthbuf_pars_vertex>\nattribute vec2      uv_0;\n#if NUM_CRS > 1\nattribute float     uv_1;\n#endif\nattribute vec3      normal;\n\nuniform mat4 modelMatrix;\nuniform bool lightingEnabled;\nvarying vec2 vHighPrecisionZW;\n\n#if MODE == MODE_FINAL\n#include <fog_pars_vertex>\nvarying vec3        vUv;\nvarying vec3        vNormal;\n#endif\nvoid main() {\n        vec2 uv = vec2(uv_0.x, 1.0 - uv_0.y);\n\n        #include <begin_vertex>\n        #include <itowns/elevation_vertex>\n        #include <itowns/geoid_vertex>\n        #include <project_vertex>\n        #include <logdepthbuf_vertex>\n        vHighPrecisionZW = gl_Position.zw;\n#if MODE == MODE_FINAL\n        #include <fog_vertex>\n        #if NUM_CRS > 1\n        vUv = vec3(uv_0, (uv_1 > 0.) ? uv_1 : uv_0.y); // set uv_1 = uv_0 if uv_1 is undefined\n        #else\n        vUv = vec3(uv_0, 0.0);\n        #endif\n        vNormal = normalize ( mat3( modelMatrix[0].xyz, modelMatrix[1].xyz, modelMatrix[2].xyz ) * normal );\n#endif\n}\n";

/* babel-plugin-inline-import './Shader/TileFS.glsl' */
var TileFS = "#include <itowns/WebGL2_pars_fragment>\n#include <itowns/precision_qualifier>\n#include <logdepthbuf_pars_fragment>\n#include <itowns/pitUV>\n#include <itowns/color_layers_pars_fragment>\n#if MODE == MODE_FINAL\n#include <itowns/fog_pars_fragment>\n#include <itowns/overlay_pars_fragment>\n#include <itowns/lighting_pars_fragment>\n#endif\n#include <itowns/mode_pars_fragment>\n\nuniform vec3        diffuse;\nuniform float       opacity;\nvarying vec3        vUv; // uv_0.x/uv_1.x, uv_0.y, uv_1.y\nvarying vec2        vHighPrecisionZW;\n\nvoid main() {\n    #include <logdepthbuf_fragment>\n\n#if MODE == MODE_ID\n\n    #include <itowns/mode_id_fragment>\n\n#elif MODE == MODE_DEPTH\n\n    #include <itowns/mode_depth_fragment>\n\n#else\n\n    gl_FragColor = vec4(diffuse, opacity);\n\n    uvs[0] = vec3(vUv.xy, 0.);\n\n#if NUM_CRS > 1\n    uvs[1] = vec3(vUv.x, fract(vUv.z), floor(vUv.z));\n#endif\n\n    vec4 color;\n    #pragma unroll_loop\n    for ( int i = 0; i < NUM_FS_TEXTURES; i ++ ) {\n        color = getLayerColor( i , colorTextures[ i ], colorOffsetScales[ i ], colorLayers[ i ]);\n        gl_FragColor.rgb = mix(gl_FragColor.rgb, color.rgb, color.a);\n    }\n\n  #if defined(DEBUG)\n    if (showOutline) {\n        #pragma unroll_loop\n        for ( int i = 0; i < NUM_CRS; i ++) {\n            color = getOutlineColor( outlineColors[ i ], uvs[ i ].xy);\n            gl_FragColor.rgb = mix(gl_FragColor.rgb, color.rgb, color.a);\n        }\n    }\n  #endif\n\n    #include <itowns/fog_fragment>\n    #include <itowns/lighting_fragment>\n    #include <itowns/overlay_fragment>\n\n#endif\n}\n";
var identityOffsetScale = new THREE.Vector4(0.0, 0.0, 1.0, 1.0);
var defaultTex = new THREE.Texture(); // from three.js packDepthToRGBA

var UnpackDownscale = 255 / 256; // 0..1 -> fraction (excluding 1)

var bitSh = new THREE.Vector4(UnpackDownscale / (256.0 * 256.0 * 256.0), UnpackDownscale / (256.0 * 256.0), UnpackDownscale / 256.0, UnpackDownscale);

function unpack1K(color, factor) {
  return factor ? bitSh.dot(color) * factor : bitSh.dot(color);
} // Max sampler color count to LayeredMaterial
// Because there's a statement limitation to unroll, in getColorAtIdUv method


var maxSamplersColorCount = 15;
var samplersElevationCount = 1;

function getMaxColorSamplerUnitsCount() {
  var maxSamplerUnitsCount = _Capabilities["default"].getMaxTextureUnitsCount();

  return Math.min(maxSamplerUnitsCount - samplersElevationCount, maxSamplersColorCount);
}

var colorLayerEffects = {
  noEffect: 0,
  removeLightColor: 1,
  removeWhiteColor: 2,
  customEffect: 3
};
exports.colorLayerEffects = colorLayerEffects;
var defaultStructLayer = {
  bias: 0,
  zmin: 0,
  zmax: 0,
  scale: 0,
  mode: 0,
  textureOffset: 0,
  opacity: 0,
  crs: 0,
  effect_parameter: 0,
  effect_type: colorLayerEffects.noEffect,
  transparent: false
};

function _updateLayersUniforms(uniforms, olayers, max) {
  // prepare convenient access to elevation or color uniforms
  var layers = uniforms.layers.value;
  var textures = uniforms.textures.value;
  var offsetScales = uniforms.offsetScales.value;
  var textureCount = uniforms.textureCount; // flatten the 2d array [i,j] -> layers[_layerIds[i]].textures[j]

  var count = 0;

  var _iterator = _createForOfIteratorHelper(olayers),
      _step;

  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var layer = _step.value;
      // textureOffset property is added to RasterTile
      layer.textureOffset = count;

      for (var _i = 0, il = layer.textures.length; _i < il; ++_i, ++count) {
        if (count < max) {
          offsetScales[count] = layer.offsetScales[_i];
          textures[count] = layer.textures[_i];
          layers[count] = layer;
        }
      }
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }

  if (count > max) {
    console.warn("LayeredMaterial: Not enough texture units (".concat(max, " < ").concat(count, "), excess textures have been discarded."));
  }

  textureCount.value = count; // WebGL 2.0 doesn't support the undefined uniforms.
  // So the undefined uniforms are defined by default value.

  for (var i = count; i < textures.length; i++) {
    textures[i] = defaultTex;
    offsetScales[i] = identityOffsetScale;
    layers[i] = defaultStructLayer;
  }
}

var ELEVATION_MODES = {
  RGBA: 0,
  COLOR: 1,
  DATA: 2
};
exports.ELEVATION_MODES = ELEVATION_MODES;
var nbSamplers;
var fragmentShader = [];

var _visible = /*#__PURE__*/new WeakMap();

var LayeredMaterial = /*#__PURE__*/function (_THREE$RawShaderMater) {
  (0, _inherits2["default"])(LayeredMaterial, _THREE$RawShaderMater);

  var _super = _createSuper(LayeredMaterial);

  function LayeredMaterial() {
    var _this;

    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var crsCount = arguments.length > 1 ? arguments[1] : undefined;
    (0, _classCallCheck2["default"])(this, LayeredMaterial);
    _this = _super.call(this, options);

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _visible, {
      writable: true,
      value: true
    });

    nbSamplers = nbSamplers || [samplersElevationCount, getMaxColorSamplerUnitsCount()];
    _this.defines.NUM_VS_TEXTURES = nbSamplers[0];
    _this.defines.NUM_FS_TEXTURES = nbSamplers[1];
    _this.defines.USE_FOG = 1;
    _this.defines.NUM_CRS = crsCount;

    _CommonMaterial["default"].setDefineMapping((0, _assertThisInitialized2["default"])(_this), 'ELEVATION', ELEVATION_MODES);

    _CommonMaterial["default"].setDefineMapping((0, _assertThisInitialized2["default"])(_this), 'MODE', _RenderMode["default"].MODES);

    _CommonMaterial["default"].setDefineProperty((0, _assertThisInitialized2["default"])(_this), 'mode', 'MODE', _RenderMode["default"].MODES.FINAL);

    if (_Capabilities["default"].isLogDepthBufferSupported()) {
      _this.defines.USE_LOGDEPTHBUF = 1;
      _this.defines.USE_LOGDEPTHBUF_EXT = 1;
    }

    _this.vertexShader = TileVS;
    fragmentShader[crsCount] = fragmentShader[crsCount] || _ShaderUtils["default"].unrollLoops(TileFS, _this.defines);
    _this.fragmentShader = fragmentShader[crsCount]; // Color uniforms

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'diffuse', new THREE.Color(0.04, 0.23, 0.35));

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'opacity', _this.opacity); // Lighting uniforms


    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'lightingEnabled', false);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'lightPosition', new THREE.Vector3(-0.5, 0.0, 1.0)); // Misc properties


    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'fogDistance', 1000000000.0);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'fogColor', new THREE.Color(0.76, 0.85, 1.0));

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'overlayAlpha', 0);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'overlayColor', new THREE.Color(1.0, 0.3, 0.0));

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'objectId', 0);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'geoidHeight', 0.0); // > 0 produces gaps,
    // < 0 causes oversampling of textures
    // = 0 causes sampling artefacts due to bad estimation of texture-uv gradients
    // best is a small negative number


    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'minBorderDistance', -0.01); // LayeredMaterialLayers


    _this.layers = [];
    _this.elevationLayerIds = [];
    _this.colorLayerIds = []; // elevation layer uniforms, to be updated using updateUniforms()

    _this.uniforms.elevationLayers = new THREE.Uniform(new Array(nbSamplers[0]).fill(defaultStructLayer));
    _this.uniforms.elevationTextures = new THREE.Uniform(new Array(nbSamplers[0]).fill(defaultTex));
    _this.uniforms.elevationOffsetScales = new THREE.Uniform(new Array(nbSamplers[0]).fill(identityOffsetScale));
    _this.uniforms.elevationTextureCount = new THREE.Uniform(0); // color layer uniforms, to be updated using updateUniforms()

    _this.uniforms.colorLayers = new THREE.Uniform(new Array(nbSamplers[1]).fill(defaultStructLayer));
    _this.uniforms.colorTextures = new THREE.Uniform(new Array(nbSamplers[1]).fill(defaultTex));
    _this.uniforms.colorOffsetScales = new THREE.Uniform(new Array(nbSamplers[1]).fill(identityOffsetScale));
    _this.uniforms.colorTextureCount = new THREE.Uniform(0); // can't do an ES6 setter/getter here

    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'visible', {
      // Knowing the visibility of a `LayeredMaterial` is useful. For example in a
      // `GlobeView`, if you zoom in, "parent" tiles seems hidden; in fact, there
      // are not, it is only their material (so `LayeredMaterial`) that is set to
      // not visible.
      // Adding an event when changing this property can be useful to hide others
      // things, like in `TileDebug`, or in later PR to come (#1303 for example).
      //
      // TODO : verify if there is a better mechanism to avoid this event
      get: function get() {
        return (0, _classPrivateFieldGet2["default"])(this, _visible);
      },
      set: function set(v) {
        if ((0, _classPrivateFieldGet2["default"])(this, _visible) != v) {
          (0, _classPrivateFieldSet2["default"])(this, _visible, v);
          this.dispatchEvent({
            type: v ? 'shown' : 'hidden'
          });
        }
      }
    });
    return _this;
  }

  (0, _createClass2["default"])(LayeredMaterial, [{
    key: "onBeforeCompile",
    value: function onBeforeCompile(shader, renderer) {
      if (renderer.capabilities.isWebGL2) {
        this.defines.WEBGL2 = true;
        shader.glslVersion = '300 es';
      }
    }
  }, {
    key: "getUniformByType",
    value: function getUniformByType(type) {
      return {
        layers: this.uniforms["".concat(type, "Layers")],
        textures: this.uniforms["".concat(type, "Textures")],
        offsetScales: this.uniforms["".concat(type, "OffsetScales")],
        textureCount: this.uniforms["".concat(type, "TextureCount")]
      };
    }
  }, {
    key: "updateLayersUniforms",
    value: function updateLayersUniforms() {
      var _this2 = this;

      var colorlayers = this.layers.filter(function (l) {
        return _this2.colorLayerIds.includes(l.id) && l.visible && l.opacity > 0;
      });
      colorlayers.sort(function (a, b) {
        return _this2.colorLayerIds.indexOf(a.id) - _this2.colorLayerIds.indexOf(b.id);
      });

      _updateLayersUniforms(this.getUniformByType('color'), colorlayers, this.defines.NUM_FS_TEXTURES);

      if (this.elevationLayerIds.some(function (id) {
        return _this2.getLayer(id);
      }) || this.uniforms.elevationTextureCount.value && !this.elevationLayerIds.length) {
        var elevationLayer = this.getElevationLayer() ? [this.getElevationLayer()] : [];

        _updateLayersUniforms(this.getUniformByType('elevation'), elevationLayer, this.defines.NUM_VS_TEXTURES);
      }

      this.layersNeedUpdate = false;
    }
  }, {
    key: "dispose",
    value: function dispose() {
      this.dispatchEvent({
        type: 'dispose'
      });
      this.layers.forEach(function (l) {
        return l.dispose(true);
      });
      this.layers.length = 0;
      this.layersNeedUpdate = true;
    } // TODO: rename to setColorLayerIds and add setElevationLayerIds ?

  }, {
    key: "setSequence",
    value: function setSequence(sequenceLayer) {
      this.colorLayerIds = sequenceLayer;
      this.layersNeedUpdate = true;
    }
  }, {
    key: "setSequenceElevation",
    value: function setSequenceElevation(layerId) {
      this.elevationLayerIds[0] = layerId;
      this.layersNeedUpdate = true;
    }
  }, {
    key: "removeLayer",
    value: function removeLayer(layerId) {
      var index = this.layers.findIndex(function (l) {
        return l.id === layerId;
      });

      if (index > -1) {
        this.layers[index].dispose();
        this.layers.splice(index, 1);
        var idSeq = this.colorLayerIds.indexOf(layerId);

        if (idSeq > -1) {
          this.colorLayerIds.splice(idSeq, 1);
        } else {
          this.elevationLayerIds = [];
        }
      }
    }
  }, {
    key: "addLayer",
    value: function addLayer(rasterNode) {
      if (rasterNode.layer.id in this.layers) {
        console.warn('The "{layer.id}" layer was already present in the material, overwritting.');
      }

      this.layers.push(rasterNode);
    }
  }, {
    key: "getLayer",
    value: function getLayer(id) {
      return this.layers.find(function (l) {
        return l.id === id;
      });
    }
  }, {
    key: "getLayers",
    value: function getLayers(ids) {
      return this.layers.filter(function (l) {
        return ids.includes(l.id);
      });
    }
  }, {
    key: "getElevationLayer",
    value: function getElevationLayer() {
      var _this3 = this;

      return this.layers.find(function (l) {
        return l.id === _this3.elevationLayerIds[0];
      });
    }
  }, {
    key: "setElevationScale",
    value: function setElevationScale(scale) {
      if (this.elevationLayerIds.length) {
        this.getElevationLayer().scale = scale;
      }
    }
  }]);
  return LayeredMaterial;
}(THREE.RawShaderMaterial);

var _default = LayeredMaterial;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/OBB.js":
/*!*************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/OBB.js ***!
  \*************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _TileGeometry = _interopRequireDefault(__webpack_require__(/*! ../Core/TileGeometry */ "./node_modules/itowns/lib/Core/TileGeometry.js"));

var _BuilderEllipsoidTile = _interopRequireDefault(__webpack_require__(/*! ../Core/Prefab/Globe/BuilderEllipsoidTile */ "./node_modules/itowns/lib/Core/Prefab/Globe/BuilderEllipsoidTile.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

// get oriented bounding box of tile
var builder = new _BuilderEllipsoidTile["default"]({
  crs: 'EPSG:4978',
  uvCount: 1
});
var size = new THREE.Vector3();
var dimension = new THREE.Vector2();
var center = new THREE.Vector3();
var coord = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var obb;

var OBB = /*#__PURE__*/function (_THREE$Object3D) {
  (0, _inherits2["default"])(OBB, _THREE$Object3D);

  var _super = _createSuper(OBB);

  /**
   * Oriented bounding box
   * @constructor
   * @extends THREE.Object3D
   * @param {THREE.Vector3}  min representing the lower (x, y, z) boundary of the box. Default is ( + Infinity, + Infinity, + Infinity ).
   * @param {THREE.Vector3}  max representing the lower upper (x, y, z) boundary of the box. Default is ( - Infinity, - Infinity, - Infinity ).
   */
  function OBB() {
    var _this;

    var min = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : new THREE.Vector3(+Infinity, +Infinity, +Infinity);
    var max = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Vector3(-Infinity, -Infinity, -Infinity);
    (0, _classCallCheck2["default"])(this, OBB);
    _this = _super.call(this);
    _this.box3D = new THREE.Box3(min.clone(), max.clone());
    _this.natBox = _this.box3D.clone();
    _this.z = {
      min: 0,
      max: 0,
      scale: 1.0
    };
    return _this;
  }
  /**
   * Creates a new instance of the object with same properties than original.
   *
   * @return     {OBB}  Copy of this object.
   */


  (0, _createClass2["default"])(OBB, [{
    key: "clone",
    value: function clone() {
      return new OBB().copy(this);
    }
    /**
     * Copy the property of OBB
     *
     * @param      {OBB}  cOBB OBB to copy
     * @return     {OBB}  the copy
     */

  }, {
    key: "copy",
    value: function copy(cOBB) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(OBB.prototype), "copy", this).call(this, cOBB);
      this.box3D.copy(cOBB.box3D);
      this.natBox.copy(cOBB.natBox);
      this.z.min = cOBB.z.min;
      this.z.max = cOBB.z.max;
      this.z.scale = cOBB.z.scale;
      return this;
    }
    /**
     * Update the top point world
     *
     */

  }, {
    key: "update",
    value: function update() {
      this.updateMatrixWorld(true);
    }
    /**
     * Update z min, z max and z scale of oriented bounding box
     *
     * @param {Object}  [elevation={}]
     * @param {number}  [elevation.min]             The minimum of oriented bounding box
     * @param {number}  [elevation.max]             The maximum of oriented bounding box
     * @param {number}  [elevation.scale]           The scale of oriented bounding box Z axis
     * @param {number}  [elevation.geoidHeight]     The geoid height added to ellipsoid.
     */

  }, {
    key: "updateZ",
    value: function updateZ() {
      var _elevation$min, _elevation$max;

      var elevation = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      this.z.min = (_elevation$min = elevation.min) !== null && _elevation$min !== void 0 ? _elevation$min : this.z.min;
      this.z.max = (_elevation$max = elevation.max) !== null && _elevation$max !== void 0 ? _elevation$max : this.z.max;
      this.z.scale = elevation.scale > 0 ? elevation.scale : this.z.scale;
      this.z.delta = Math.abs(this.z.max - this.z.min) * this.z.scale;
      var geoidHeight = elevation.geoidHeight || 0;
      this.box3D.min.z = this.natBox.min.z + this.z.min * this.z.scale + geoidHeight;
      this.box3D.max.z = this.natBox.max.z + this.z.max * this.z.scale + geoidHeight;
    }
    /**
     * Determines if the sphere is above the XY space of the box
     *
     * @param      {Sphere}   sphere  The sphere
     * @return     {boolean}  True if sphere is above the XY space of the box, False otherwise.
     */

  }, {
    key: "isSphereAboveXYBox",
    value: function isSphereAboveXYBox(sphere) {
      var localSpherePosition = this.worldToLocal(sphere.center); // get obb closest point to sphere center by clamping

      var x = Math.max(this.box3D.min.x, Math.min(localSpherePosition.x, this.box3D.max.x));
      var y = Math.max(this.box3D.min.y, Math.min(localSpherePosition.y, this.box3D.max.y)); // this is the same as isPointInsideSphere.position

      var distance = Math.sqrt((x - localSpherePosition.x) * (x - localSpherePosition.x) + (y - localSpherePosition.y) * (y - localSpherePosition.y));
      return distance < sphere.radius;
    }
    /**
     * Compute OBB from extent.
     * The OBB resulted can be only in the system 'EPSG:3946'.
     *
     * @param      {Extent}        extent     The extent (with crs 'EPSG:4326') to compute oriented bounding box
     * @param      {number}        minHeight  The minimum height of OBB
     * @param      {number}        maxHeight  The maximum height of OBB
     * @return     {OBB}           return this object
     */

  }, {
    key: "setFromExtent",
    value: function setFromExtent(extent) {
      var minHeight = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : extent.min || 0;
      var maxHeight = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : extent.max || 0;

      if (extent.crs == 'EPSG:4326') {
        var _builder$computeShara = builder.computeSharableExtent(extent),
            sharableExtent = _builder$computeShara.sharableExtent,
            quaternion = _builder$computeShara.quaternion,
            position = _builder$computeShara.position; // Compute the minimum count of segment to build tile


        var segment = Math.max(Math.floor(sharableExtent.planarDimensions(dimension).x / 90 + 1), 2);
        var geometry = new _TileGeometry["default"]({
          extent: sharableExtent,
          level: 0,
          segment: segment,
          disableSkirt: true,
          builder: builder
        });
        obb.box3D.copy(geometry.boundingBox);
        obb.natBox.copy(geometry.boundingBox);
        this.copy(obb);
        this.updateZ({
          min: minHeight,
          max: maxHeight
        });
        this.position.copy(position);
        this.quaternion.copy(quaternion);
        this.updateMatrixWorld(true);
      } else if (!_Crs["default"].isTms(extent.crs) && _Crs["default"].isMetricUnit(extent.crs)) {
        extent.center(coord).toVector3(this.position);
        extent.planarDimensions(dimension);
        size.set(dimension.x, dimension.y, Math.abs(maxHeight - minHeight));
        this.box3D.setFromCenterAndSize(center, size);
        this.updateMatrixWorld(true);
      } else {
        throw new Error('Unsupported extent crs');
      }

      return this;
    }
  }]);
  return OBB;
}(THREE.Object3D);

obb = new OBB();
var _default = OBB;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/OrientedImageCamera.js":
/*!*****************************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/OrientedImageCamera.js ***!
  \*****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var Distortion = /*#__PURE__*/function () {
  function Distortion(size) {
    (0, _classCallCheck2["default"])(this, Distortion);
    this.size = size;
    this.pps = null;
    this.polynom = null;
    this.l1l2 = null;
  }

  (0, _createClass2["default"])(Distortion, [{
    key: "setFromMicmacCalibration",
    value: function setFromMicmacCalibration(distortion) {
      var imageYDown = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      this.pps = new THREE.Vector2().fromArray(distortion.pps);
      this.polynom = new THREE.Vector4().fromArray(distortion.poly357);
      this.l1l2 = new THREE.Vector3(); // inverse Y pps convention image micmac

      this.pps.y = imageYDown ? this.size.y - this.pps.y : this.pps.y;
      this.polynom.w = Math.pow(distortion.limit, 2);

      if (distortion.l1l2) {
        this.l1l2.fromArray(distortion.l1l2);
        this.l1l2.z = distortion.etats;
      }
    }
  }, {
    key: "clone",
    value: function clone() {
      var dest = new Distortion(this.size.clone());
      dest.pps = this.pps.clone();
      dest.polynom = this.polynom.clone();
      dest.l1l2 = this.l1l2.clone();
      return dest;
    }
  }]);
  return Distortion;
}();

var zoom = new THREE.Vector3();
/**
 * @classdesc OrientedImageCamera is a ThreeJs camera adapted to photogrammetric description.
 * So we can build a ThreeJs perspective camera from size and focal information.
 */

var OrientedImageCamera = /*#__PURE__*/function (_THREE$PerspectiveCam) {
  (0, _inherits2["default"])(OrientedImageCamera, _THREE$PerspectiveCam);

  var _super = _createSuper(OrientedImageCamera);

  /**
   * @constructor
   * @param {number|Vector2} size - image size in pixels (default: x=1024, y=x)
   * @param {number|Vector2} focal - focal length in pixels (default: x=1024, y=x)
   * @param {Vector2} center - principal point in pixels (default: size/2)
   * @param {number} near - Camera frustum near plane (default: see THREE.PerspectiveCamera).
   * @param {number} far - Camera frustum far plane (default: see THREE.PerspectiveCamera).
   * @param {number} skew - shear transform parameter (default: 0)
   * @param {number} aspect - aspect ratio of the camera (default: size.x/size.y).
   */
  function OrientedImageCamera() {
    var _this;

    var size = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1024;
    var focal = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1024;
    var center = arguments.length > 2 ? arguments[2] : undefined;
    var near = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0.1;
    var far = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 10000;
    var skew = arguments.length > 5 ? arguments[5] : undefined;
    var aspect = arguments.length > 6 ? arguments[6] : undefined;
    (0, _classCallCheck2["default"])(this, OrientedImageCamera);
    size = size.isVector2 ? size : new THREE.Vector2(size, size);
    aspect = aspect || size.x / size.y;
    _this = _super.call(this, undefined, aspect, near, far);
    _this.size = size;
    _this.focal = focal.isVector2 ? focal : new THREE.Vector2(focal, focal);
    _this.center = center || size.clone().multiplyScalar(0.5);
    _this.skew = skew || 0;
    _this.textureMatrixWorldInverse = new THREE.Matrix4();
    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'fov', {
      get: function get() {
        return 2 * THREE.MathUtils.radToDeg(Math.atan2(_this.size.y, 2 * _this.focal.y));
      },
      // setting the fov overwrites focal.x and focal.y
      set: function set(fov) {
        var focal = 0.5 * _this.size.y / Math.tan(THREE.MathUtils.degToRad(fov * 0.5));
        _this.focal.x = focal;
        _this.focal.y = focal;
      }
    });
    _this.distortion = new Distortion(_this.size);
    _this.maskPath = undefined;
    _this.mask = undefined;

    _this.updateProjectionMatrix();

    return _this;
  } // we override PerspectiveCamera.updateProjectionMatrix to
  // update the projection matrix depending on other variables
  // focal, center and size...


  (0, _createClass2["default"])(OrientedImageCamera, [{
    key: "updateProjectionMatrix",
    value: function updateProjectionMatrix() {
      if (!this.focal) {
        return;
      }

      var near = this.near;
      var sx = near / this.focal.x;
      var sy = near / this.focal.y;
      var left = -sx * this.center.x;
      var bottom = -sy * this.center.y;
      var right = left + sx * this.size.x;
      var top = bottom + sy * this.size.y;
      this.projectionMatrix.makePerspective(left, right, top, bottom, near, this.far);
      this.projectionMatrix.elements[4] = 2 * this.skew / this.size.x; // take zoom and aspect into account

      var textureAspect = this.size.x / this.size.y;
      var aspectRatio = this.aspect / textureAspect;
      zoom.set(this.zoom, this.zoom, 1);

      if (aspectRatio > 1) {
        zoom.x /= aspectRatio;
      } else {
        zoom.y *= aspectRatio;
      }

      this.projectionMatrix.scale(zoom);
    }
  }, {
    key: "copy",
    value: function copy(source, recursive) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(OrientedImageCamera.prototype), "copy", this).call(this, source, recursive);
      this.size = source.size.clone();
      this.focal = source.focal.clone();
      this.center = source.center.clone();
      this.distortion = source.distortion.clone();
      this.textureMatrixWorldInverse = source.textureMatrixWorldInverse.clone();
      this.skew = source.skew;
      this.maskPath = source.maskPath;
      this.mask = source.mask;
      return this;
    }
  }]);
  return OrientedImageCamera;
}(THREE.PerspectiveCamera);

var _default = OrientedImageCamera;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/OrientedImageMaterial.js":
/*!*******************************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/OrientedImageMaterial.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Capabilities = _interopRequireDefault(__webpack_require__(/*! ../Core/System/Capabilities */ "./node_modules/itowns/lib/Core/System/Capabilities.js"));

var _ShaderUtils = _interopRequireDefault(__webpack_require__(/*! ./Shader/ShaderUtils */ "./node_modules/itowns/lib/Renderer/Shader/ShaderUtils.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/* babel-plugin-inline-import './Shader/ProjectiveTextureVS.glsl' */
var textureVS = "#include <itowns/WebGL2_pars_vertex>\n#include <itowns/precision_qualifier>\n#include <itowns/project_pars_vertex>\n#include <itowns/projective_texturing_pars_vertex>\n#include <common>\n#include <logdepthbuf_pars_vertex>\n\nvarying vec3 vNormal;\nattribute vec3 normal;\n\nvoid main() {\n    #include <begin_vertex>\n    #include <project_vertex>\n    vNormal = normal;\n    #include <itowns/projective_texturing_vertex>\n    #include <logdepthbuf_vertex>\n}\n";

/* babel-plugin-inline-import './Shader/ProjectiveTextureFS.glsl' */
var textureFS = "#include <itowns/WebGL2_pars_fragment>\n#include <itowns/precision_qualifier>\n#include <logdepthbuf_pars_fragment>\n#include <itowns/projective_texturing_pars_fragment>\nvarying vec3 vNormal;\n\n#ifdef USE_BASE_MATERIAL\nstruct noPT {\n    vec3 lightDirection;\n    vec3 ambient;\n    float opacity;\n};\n\nuniform noPT noProjectiveMaterial;\n#endif\n\nvoid main(void)\n{\n    #include <logdepthbuf_fragment>\n    #ifdef USE_BASE_MATERIAL\n    float nDotVP = (max(0.1, dot(vNormal, normalize(noProjectiveMaterial.lightDirection))));\n    vec4 color = vec4(noProjectiveMaterial.ambient + nDotVP, 0.0);\n    #else\n    vec4 color = vec4(0.0);\n    #endif\n\n    #pragma unroll_loop\n    for (int i = 0; i < ORIENTED_IMAGES_COUNT; i++) {\n        color = projectiveTextureColor(projectiveTextureCoords[ ORIENTED_IMAGES_COUNT - 1 - i ], projectiveTextureDistortion[ ORIENTED_IMAGES_COUNT - 1 - i ], projectiveTexture[ ORIENTED_IMAGES_COUNT - 1 - i ], mask[ORIENTED_IMAGES_COUNT - 1 - i], color);\n    }\n\n    #ifdef USE_BASE_MATERIAL\n    color.a = color.a < 1.0 ? max(noProjectiveMaterial.opacity, color.a) : 1.0 ;\n    gl_FragColor = vec4(color.rgb, color.a * opacity);\n    #else\n    gl_FragColor = vec4(color.rgb / color.a, opacity);\n    #endif\n\n}\n";
var ndcToTextureMatrix = new THREE.Matrix4().set(1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 2, 0, 0, 0, 0, 2);
var noMask = new THREE.DataTexture(new Uint8Array([255, 255, 255, 255]), 1, 1, THREE.RGBAFormat, THREE.UnsignedByteType);
noMask.needsUpdate = true;
var noTexture = new THREE.Texture();
var rawShaderMaterial = new THREE.RawShaderMaterial();
/**
 * @classdesc OrientedImageMaterial is a custom shader material used to do projective texture mapping.<br/>
 *
 * This Material is designed to project many textures simultaneously.
 * Each projected texture setting is stored as an {@link OrientedImageCamera}.<br/>
 * <br/>
 * All cameras settings, like distorsion, can be specified in a configuration file.
 * See [CameraCalibrationParser]{@link module:CameraCalibrationParser.parse}
 * used to parse a configuration file and create an array of camera.<br/>
 * <br/>
 * The current implementation supports the following distortion models : <br/>
 *  - no distortion (polynom==vec3(0),l1l2==vec2(0))<br/>
 *  - radial distortion (polynom!=vec3(0),l1l2==vec2(0)) (see <b>15.2.2 Radial Model</b> in [MicMac doc]{@link https://github.com/micmacIGN/Documentation/blob/master/DocMicMac.pdf}) </br>
 *  - equilinear fish eye distortion (polynom!=vec3(0),l1l2 != vec2(0)) (see <b>15.3.4 Fish eye models</b> in [MicMac doc]{@link https://github.com/micmacIGN/Documentation/blob/master/DocMicMac.pdf}) </br>
 * (Note: radial decentric parameters P1 are P2 not supported and assumed to be 0).<br/>
 * <br/>
 * To get a more comprehensive support of camera Micmac models, you can consider using [three-photogrammetric-camera]{@link https://github.com/mbredif/three-photogrammetric-camera} instead.
 */

var OrientedImageMaterial = /*#__PURE__*/function (_THREE$RawShaderMater) {
  (0, _inherits2["default"])(OrientedImageMaterial, _THREE$RawShaderMater);

  var _super = _createSuper(OrientedImageMaterial);

  /**
   * @constructor
   * @param { OrientedImageCamera[]} cameras - Array of {@link OrientedImageCamera}. Each camera will project a texture.
   * [CameraCalibrationParser]{@link module:CameraCalibrationParser.parse} can used to create this array of camera from a configuration file.
   * @param {Object} [options={}] - Object with one or more properties defining the material's appearance.
   * Any property of the material (including any property inherited from
   * [THREE.Material]{@link https://threejs.org/docs/#api/en/materials/Material} and
   * [THREE.ShaderMaterial]{@link https://threejs.org/docs/#api/en/materials/ShaderMaterial}) can be passed in here.
   * @param {Number} [options.side=THREE.DoubleSide] - We override default
   * [THREE.Material.side]{@link https://threejs.org/docs/#api/en/materials/Material.side} from FrontSide to DoubleSide.
   * @param {Boolean} [options.transparent=true] - We override default
   * [THREE.Material.transparent]{@link https://threejs.org/docs/#api/en/materials/Material.transparent} from false to true.
   * @param {Number} [options.opacity=0.1] - We override default
   * [THREE.Material.opacity]{@link https://threejs.org/docs/#api/en/materials/Material.opacity} from 1 to 0.1.
   * @param {Number} [options.alphaBorder=20] - Part of the texture that is blended, when texture crosses each other.
   * For example, 10 means a border as large as 1 / 10 of the size of the texture is used to blend colors.
   * @param {Number} [options.debugAlphaBorder=0] - Set this option to 1 to see influence of alphaBorder option.
   */
  function OrientedImageMaterial(cameras) {
    var _options$side, _options$transparent, _options$opacity, _options$OrientedImag;

    var _this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, OrientedImageMaterial);
    options.side = (_options$side = options.side) !== null && _options$side !== void 0 ? _options$side : THREE.DoubleSide;
    options.transparent = (_options$transparent = options.transparent) !== null && _options$transparent !== void 0 ? _options$transparent : true;
    options.opacity = (_options$opacity = options.opacity) !== null && _options$opacity !== void 0 ? _options$opacity : 1; // Filter the rawShaderMaterial options

    var rawShaderMaterialOptions = {};

    for (var key in options) {
      if (Object.prototype.hasOwnProperty.call(options, key)) {
        var currentValue = rawShaderMaterial[key];

        if (currentValue !== undefined) {
          rawShaderMaterialOptions[key] = options[key];
        }
      }
    }

    _this = _super.call(this, rawShaderMaterialOptions);
    _this.defines.ORIENTED_IMAGES_COUNT = (_options$OrientedImag = options.OrientedImagesCount) !== null && _options$OrientedImag !== void 0 ? _options$OrientedImag : cameras.length; // verify that number of textures doesn't exceed GPU capabilities

    var maxTexturesUnits = _Capabilities["default"].getMaxTextureUnitsCount();

    if (_this.defines.ORIENTED_IMAGES_COUNT > maxTexturesUnits) {
      console.warn("OrientedImageMaterial: Can't project ".concat(cameras.length, " textures, because it's more than GPU capabilities maximum texture units (").concat(maxTexturesUnits, ")")); // Clamp number of textures used

      _this.defines.ORIENTED_IMAGES_COUNT = maxTexturesUnits - 1;
      console.warn("OrientedImageMaterial: We'll use only the first ".concat(_this.defines.ORIENTED_IMAGES_COUNT, " cameras."));
    }

    if (options.useBaseMaterial) {
      _this.defines.USE_BASE_MATERIAL = true;
    }

    _this.defines.USE_DISTORTION = Number(cameras.some(function (camera) {
      return camera.distortion.pps !== null;
    }));
    _this.alphaBorder = options.alphaBorder | 20;
    _this.defines.DEBUG_ALPHA_BORDER = options.debugAlphaBorder | 0;
    _this.cameras = cameras;
    var textureMatrix = [];
    var texture = [];
    var mask = [];
    var distortion = [];
    _this.group = new THREE.Group();

    for (var i = 0; i < _this.defines.ORIENTED_IMAGES_COUNT; ++i) {
      texture[i] = noTexture;
      mask[i] = noMask;
      textureMatrix[i] = new THREE.Matrix4();
      cameras[i].needsUpdate = true;
      distortion[i] = cameras[i].distortion;

      _this.group.add(cameras[i]);
    }

    _this.uniforms.opacity = new THREE.Uniform(_this.opacity);
    _this.uniforms.projectiveTextureAlphaBorder = new THREE.Uniform(_this.alphaBorder);
    _this.uniforms.projectiveTextureDistortion = new THREE.Uniform(distortion);
    _this.uniforms.projectiveTextureMatrix = new THREE.Uniform(textureMatrix);
    _this.uniforms.projectiveTexture = new THREE.Uniform(texture);
    _this.uniforms.mask = new THREE.Uniform(mask);
    _this.uniforms.boostLight = new THREE.Uniform(false);
    _this.uniforms.noProjectiveMaterial = new THREE.Uniform({
      lightDirection: new THREE.Vector3(0.5, 0.5, -0.5),
      ambient: new THREE.Color(0.1, 0.1, 0.1),
      opacity: 0.75
    });

    if (_Capabilities["default"].isLogDepthBufferSupported()) {
      _this.defines.USE_LOGDEPTHBUF = 1;
      _this.defines.USE_LOGDEPTHBUF_EXT = 1;
    }

    _this.vertexShader = textureVS;
    _this.fragmentShader = _ShaderUtils["default"].unrollLoops(textureFS, _this.defines);
    return _this;
  }

  (0, _createClass2["default"])(OrientedImageMaterial, [{
    key: "onBeforeCompile",
    value: function onBeforeCompile(shader, renderer) {
      if (renderer.capabilities.isWebGL2) {
        this.defines.WEBGL2 = true;
        shader.glslVersion = '300 es';
      }
    }
    /**
     * Set new textures and new position/orientation of the camera set.
     * @param {THREE.Texture} textures - Array of [THREE.Texture]{@link https://threejs.org/docs/#api/en/textures/Texture}.
     * @param {Object} feature - New position / orientation of the set of cameras
     * @param {Array} camerasNames - camera names of panoramic feature
     * @param {THREE.Vector3} feature.position - New position.
     * @param {THREE.Quaternion} feature.quaternion - New orientation.
     */

  }, {
    key: "setTextures",
    value: function setTextures(textures, feature, camerasNames) {
      var _this2 = this;

      if (!textures) {
        return;
      }

      this.group.position.copy(feature.position);
      this.group.quaternion.copy(feature.quaternion);

      var _loop = function (i) {
        _this2.uniforms.projectiveTexture.value[i].dispose();

        _this2.uniforms.projectiveTexture.value[i] = textures[i]; // check camera changes

        if (camerasNames) {
          var currentCamera = _this2.group.children[i];

          if (camerasNames[i] != currentCamera.name) {
            var camera = _this2.cameras.find(function (cam) {
              return cam.name === camerasNames[i];
            });

            _this2.uniforms.mask.value[i] = camera.maskTexture || noMask;
            _this2.uniforms.mask.value[i].needsUpdate = true;
            _this2.uniforms.projectiveTextureDistortion.value[i] = camera.distortion;
            _this2.group.children[i] = camera;
            camera.parent = _this2.group;
          }
        }

        _this2.group.children[i].needsUpdate = true;
      };

      for (var i = 0; i < textures.length && i < this.defines.ORIENTED_IMAGES_COUNT; ++i) {
        _loop(i);
      }

      this.group.updateMatrixWorld(true); // update the matrixWorldInverse of the cameras
    }
    /**
     * Udate the uniforms using the current value of camera.matrixWorld.
     * Need to be called when the camera of the scene has changed.
     * @param {THREE.Camera} viewCamera - Camera of the scene.
     */

  }, {
    key: "updateUniforms",
    value: function updateUniforms(viewCamera) {
      for (var i = 0; i < this.group.children.length; ++i) {
        var camera = this.group.children[i];

        if (camera.needsUpdate) {
          camera.textureMatrixWorldInverse.multiplyMatrices(ndcToTextureMatrix, camera.projectionMatrix);
          camera.textureMatrixWorldInverse.multiply(camera.matrixWorldInverse);
          camera.needsUpdate = false;
        }

        this.uniforms.projectiveTextureMatrix.value[i].multiplyMatrices(camera.textureMatrixWorldInverse, viewCamera.matrixWorld);
      }
    }
  }]);
  return OrientedImageMaterial;
}(THREE.RawShaderMaterial);

var _default = OrientedImageMaterial;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/PointsMaterial.js":
/*!************************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/PointsMaterial.js ***!
  \************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.MODE = exports.ClassificationScheme = void 0;

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Capabilities = _interopRequireDefault(__webpack_require__(/*! ../Core/System/Capabilities */ "./node_modules/itowns/lib/Core/System/Capabilities.js"));

var _ShaderUtils = _interopRequireDefault(__webpack_require__(/*! ./Shader/ShaderUtils */ "./node_modules/itowns/lib/Renderer/Shader/ShaderUtils.js"));

var _CommonMaterial = _interopRequireDefault(__webpack_require__(/*! ./CommonMaterial */ "./node_modules/itowns/lib/Renderer/CommonMaterial.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/* babel-plugin-inline-import './Shader/PointsVS.glsl' */
var PointsVS = "#include <itowns/WebGL2_pars_vertex>\n#include <itowns/precision_qualifier>\n#include <itowns/project_pars_vertex>\n#if defined(USE_TEXTURES_PROJECTIVE)\n#include <itowns/projective_texturing_pars_vertex>\n#endif\n#include <common>\n#include <logdepthbuf_pars_vertex>\n\nuniform float size;\n\nuniform bool picking;\nuniform int mode;\nuniform float opacity;\nuniform vec4 overlayColor;\nuniform vec2 intensityRange;\nuniform bool applyOpacityClassication;\nattribute vec3 color;\nattribute vec4 unique_id;\nattribute float intensity;\nattribute float classification;\nuniform sampler2D classificationLUT;\n\n#if defined(NORMAL_OCT16)\nattribute vec2 oct16Normal;\n#elif defined(NORMAL_SPHEREMAPPED)\nattribute vec2 sphereMappedNormal;\n#else\nattribute vec3 normal;\n#endif\n\nvarying vec4 vColor;\n\n// see https://web.archive.org/web/20150303053317/http://lgdv.cs.fau.de/get/1602\n// and implementation in PotreeConverter (BINPointReader.cpp) and potree (BinaryDecoderWorker.js)\n#if defined(NORMAL_OCT16)\nvec3 decodeOct16Normal(vec2 encodedNormal) {\n    vec2 nNorm = 2. * (encodedNormal / 255.) - 1.;\n    vec3 n;\n    n.z = 1. - abs(nNorm.x) - abs(nNorm.y);\n    if (n.z >= 0.) {\n        n.x = nNorm.x;\n        n.y = nNorm.y;\n    } else {\n        n.x = sign(nNorm.x) - sign(nNorm.x) * sign(nNorm.y) * nNorm.y;\n        n.y = sign(nNorm.y) - sign(nNorm.y) * sign(nNorm.x) * nNorm.x;\n    }\n    return normalize(n);\n}\n#elif defined(NORMAL_SPHEREMAPPED)\n// see http://aras-p.info/texts/CompactNormalStorage.html method #4\n// or see potree's implementation in BINPointReader.cpp\nvec3 decodeSphereMappedNormal(vec2 encodedNormal) {\n    vec2 fenc = 2. * encodedNormal / 255. - 1.;\n    float f = dot(fenc,fenc);\n    float g = 2. * sqrt(1. - f);\n    vec3 n;\n    n.xy = fenc * g;\n    n.z = 1. - 2. * f;\n    return n;\n}\n#endif\n\nvoid main() {\n\n#if defined(NORMAL_OCT16)\n    vec3  normal = decodeOct16Normal(oct16Normal);\n#elif defined(NORMAL_SPHEREMAPPED)\n    vec3 normal = decodeSphereMappedNormal(sphereMappedNormal);\n#elif defined(NORMAL)\n    // nothing to do\n#else\n    // default to color\n    vec3 normal = color;\n#endif\n\n    if (picking) {\n        vColor = unique_id;\n    } else {\n        vColor.a = opacity;\n        if (applyOpacityClassication || mode == MODE_CLASSIFICATION) {\n            vec2 uv = vec2(classification, 0.5);\n            vColor = texture2D(classificationLUT, uv);\n            vColor.a *= opacity;\n        }\n\n        if (mode == MODE_INTENSITY) {\n            // adapt the grayscale knowing the range\n            float i = (intensity - intensityRange.x) / (intensityRange.y - intensityRange.x);\n            vColor.rgb = vec3(i, i, i);\n        } else if (mode == MODE_NORMAL) {\n            vColor.rgb = abs(normal);\n        } else if (mode == MODE_COLOR) {\n            // default to color mode\n            vColor.rgb = mix(color, overlayColor.rgb, overlayColor.a);\n        }\n    }\n\n    #include <begin_vertex>\n    #include <project_vertex>\n\n    if (size > 0.) {\n        gl_PointSize = size;\n    } else {\n        gl_PointSize = clamp(-size / gl_Position.w, 3.0, 10.0);\n    }\n\n#if defined(USE_TEXTURES_PROJECTIVE)\n    #include <itowns/projective_texturing_vertex>\n#endif\n    #include <logdepthbuf_vertex>\n}\n";

/* babel-plugin-inline-import './Shader/PointsFS.glsl' */
var PointsFS = "#include <itowns/WebGL2_pars_fragment>\n#include <itowns/precision_qualifier>\n#include <logdepthbuf_pars_fragment>\n#if defined(USE_TEXTURES_PROJECTIVE)\n#include <itowns/projective_texturing_pars_fragment>\n#endif\n\nvarying vec4 vColor;\nuniform bool picking;\nvoid main() {\n    #include <logdepthbuf_fragment>\n    // circular point rendering\n    if((length(gl_PointCoord - 0.5) > 0.5) || (vColor.a == 0.0)) {\n        discard;\n    }\n#if defined(USE_TEXTURES_PROJECTIVE)\n    vec4 color = vColor;\n    if (!picking) {\n        #pragma unroll_loop\n        for (int i = 0; i < ORIENTED_IMAGES_COUNT; i++) {\n            color = projectiveTextureColor(projectiveTextureCoords[ ORIENTED_IMAGES_COUNT - 1 - i ], projectiveTextureDistortion[ ORIENTED_IMAGES_COUNT - 1 - i ], projectiveTexture[ ORIENTED_IMAGES_COUNT - 1 - i ], mask[ORIENTED_IMAGES_COUNT - 1 - i], color);\n        }\n        gl_FragColor = vec4(color.rgb, color.a * opacity);\n    } else {\n        gl_FragColor = color;\n    }\n#else\n    gl_FragColor = vColor;\n#endif\n}\n";
var MODE = {
  COLOR: 0,
  INTENSITY: 1,
  CLASSIFICATION: 2,
  NORMAL: 3
};
exports.MODE = MODE;
var white = new THREE.Color(1.0, 1.0, 1.0);
/**
 * Every lidar point can have a classification assigned to it that defines
 * the type of object that has reflected the laser pulse. Lidar points can be
 * classified into a number of categories including bare earth or ground,
 * top of canopy, and water. The different classes are defined using numeric
 * integer codes in the files.
 *
 * @property {object} category - category classification,
 * @property {boolean} category.visible - category visibility,
 * @property {string} category.name - category name,
 * @property {THREE.Color} category.color - category color,
 * @property {number} category.opacity - category opacity,
 */
// eslint-disable-next-line

var
/* istanbul ignore next */
Classification = /*#__PURE__*/(0, _createClass2["default"])(function Classification() {
  (0, _classCallCheck2["default"])(this, Classification);
});
var ClassificationScheme = {
  DEFAULT: {
    0: {
      visible: true,
      name: 'never classified',
      color: new THREE.Color(0.5, 0.5, 0.5),
      opacity: 1.0
    },
    1: {
      visible: true,
      name: 'unclassified',
      color: new THREE.Color(0.5, 0.5, 0.5),
      opacity: 1.0
    },
    2: {
      visible: true,
      name: 'ground',
      color: new THREE.Color(0.63, 0.32, 0.18),
      opacity: 1.0
    },
    3: {
      visible: true,
      name: 'low vegetation',
      color: new THREE.Color(0.0, 1.0, 0.0),
      opacity: 1.0
    },
    4: {
      visible: true,
      name: 'medium vegetation',
      color: new THREE.Color(0.0, 0.8, 0.0),
      opacity: 1.0
    },
    5: {
      visible: true,
      name: 'high vegetation',
      color: new THREE.Color(0.0, 0.6, 0.0),
      opacity: 1.0
    },
    6: {
      visible: true,
      name: 'building',
      color: new THREE.Color(1.0, 0.66, 0.0),
      opacity: 1.0
    },
    7: {
      visible: true,
      name: 'low point(noise)',
      color: new THREE.Color(1.0, 0.0, 1.0),
      opacity: 1.0
    },
    8: {
      visible: true,
      name: 'key-point',
      color: new THREE.Color(1.0, 0.0, 0.0),
      opacity: 1.0
    },
    9: {
      visible: true,
      name: 'water',
      color: new THREE.Color(0.0, 0.0, 1.0),
      opacity: 1.0
    },
    10: {
      visible: true,
      name: 'rail',
      color: new THREE.Color(0.8, 0.8, 1.0),
      opacity: 1.0
    },
    11: {
      visible: true,
      name: 'road Surface',
      color: new THREE.Color(0.4, 0.4, 0.7),
      opacity: 1.0
    },
    12: {
      visible: true,
      name: 'overlap',
      color: new THREE.Color(1.0, 1.0, 0.0),
      opacity: 1.0
    },
    DEFAULT: {
      visible: true,
      name: 'default',
      color: new THREE.Color(0.3, 0.6, 0.6),
      opacity: 0.5
    }
  }
};
exports.ClassificationScheme = ClassificationScheme;

var PointsMaterial = /*#__PURE__*/function (_THREE$RawShaderMater) {
  (0, _inherits2["default"])(PointsMaterial, _THREE$RawShaderMater);

  var _super = _createSuper(PointsMaterial);

  /**
   * @class      PointsMaterial
   * @param      {object}  [options={}]  The options
   * @param      {number}  [options.size=0]  size point
   * @param      {number}  [options.mode=MODE.COLOR]  display mode.
   * @param      {THREE.Vector4}  [options.overlayColor=new THREE.Vector4(0, 0, 0, 0)]  overlay color.
   * @param      {THREE.Vector2}  [options.intensityRange=new THREE.Vector2(0, 1)]  intensity range.
   * @param      {boolean}  [options.applyOpacityClassication=false]  apply opacity classification on all display mode.
   * @param      {Classification}  [options.classification] -  define points classification.
   * @property {Classification}  classification - points classification.
   *
   * @example
   * // change color category classification
   * const pointMaterial = new PointsMaterial();
   * pointMaterial.classification[3].color.setStyle('red');
   * pointMaterial.recomputeClassification();
   */
  function PointsMaterial() {
    var _this;

    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    (0, _classCallCheck2["default"])(this, PointsMaterial);
    var intensityRange = options.intensityRange || new THREE.Vector2(0, 1);
    var oiMaterial = options.orientedImageMaterial;
    var classification = options.classification || ClassificationScheme.DEFAULT;
    var applyOpacityClassication = options.applyOpacityClassication == undefined ? false : options.applyOpacityClassication;
    delete options.orientedImageMaterial;
    delete options.intensityRange;
    delete options.classification;
    delete options.applyOpacityClassication;
    _this = _super.call(this, options);
    _this.vertexShader = PointsVS;
    _this.scale = options.scale || 0.05 * 0.5 / Math.tan(1.0 / 2.0); // autosizing scale

    _CommonMaterial["default"].setDefineMapping((0, _assertThisInitialized2["default"])(_this), 'MODE', MODE);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'size', options.size || 0);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'mode', options.mode || MODE.COLOR);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'picking', false);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'opacity', _this.opacity);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'overlayColor', options.overlayColor || new THREE.Vector4(0, 0, 0, 0));

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'intensityRange', intensityRange);

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'applyOpacityClassication', applyOpacityClassication); // add classification texture to apply classification lut.


    var data = new Uint8Array(256 * 4);
    var texture = new THREE.DataTexture(data, 256, 1, THREE.RGBAFormat);
    texture.needsUpdate = true;
    texture.magFilter = THREE.NearestFilter;

    _CommonMaterial["default"].setUniformProperty((0, _assertThisInitialized2["default"])(_this), 'classificationLUT', texture); // Classification scheme


    _this.classification = classification; // Update classification

    _this.recomputeClassification();

    if (oiMaterial) {
      _this.uniforms.projectiveTextureAlphaBorder = oiMaterial.uniforms.projectiveTextureAlphaBorder;
      _this.uniforms.projectiveTextureDistortion = oiMaterial.uniforms.projectiveTextureDistortion;
      _this.uniforms.projectiveTextureMatrix = oiMaterial.uniforms.projectiveTextureMatrix;
      _this.uniforms.projectiveTexture = oiMaterial.uniforms.projectiveTexture;
      _this.uniforms.mask = oiMaterial.uniforms.mask;
      _this.uniforms.boostLight = oiMaterial.uniforms.boostLight;
      _this.defines.ORIENTED_IMAGES_COUNT = oiMaterial.defines.ORIENTED_IMAGES_COUNT;
      _this.defines.USE_DISTORTION = oiMaterial.defines.USE_DISTORTION;
      _this.defines.DEBUG_ALPHA_BORDER = oiMaterial.defines.DEBUG_ALPHA_BORDER;
      _this.defines.USE_TEXTURES_PROJECTIVE = true;
      _this.defines.USE_BASE_MATERIAL = true;
      _this.fragmentShader = _ShaderUtils["default"].unrollLoops(PointsFS, _this.defines);
    } else {
      _this.fragmentShader = PointsFS;
    }

    if (_Capabilities["default"].isLogDepthBufferSupported()) {
      _this.defines.USE_LOGDEPTHBUF = 1;
      _this.defines.USE_LOGDEPTHBUF_EXT = 1;
    }

    return _this;
  }

  (0, _createClass2["default"])(PointsMaterial, [{
    key: "recomputeClassification",
    value: function recomputeClassification() {
      var classification = this.classification;
      var data = this.classificationLUT.image.data;
      var width = this.classificationLUT.image.width;

      for (var i = 0; i < width; i++) {
        var color = void 0;
        var opacity = void 0;
        var visible = true;

        if (classification[i]) {
          color = classification[i].color;
          visible = classification[i].visible;
          opacity = classification[i].opacity;
        } else if (classification[i % 32]) {
          color = classification[i % 32].color;
          visible = classification[i % 32].visible;
          opacity = classification[i % 32].opacity;
        } else if (classification.DEFAULT) {
          color = classification.DEFAULT.color;
          visible = classification.DEFAULT.visible;
          opacity = classification.DEFAULT.opacity;
        } else {
          color = white;
          opacity = 1.0;
        }

        var j = 4 * i;
        data[j + 0] = parseInt(255 * color.r, 10);
        data[j + 1] = parseInt(255 * color.g, 10);
        data[j + 2] = parseInt(255 * color.b, 10);
        data[j + 3] = visible ? parseInt(255 * opacity, 10) : 0;
      }

      this.classificationLUT.needsUpdate = true;
      this.dispatchEvent({
        type: 'material_property_changed',
        target: this
      });
    }
  }, {
    key: "onBeforeCompile",
    value: function onBeforeCompile(shader, renderer) {
      if (renderer.capabilities.isWebGL2) {
        this.defines.WEBGL2 = true;
        shader.glslVersion = '300 es';
      }
    }
  }, {
    key: "copy",
    value: function copy(source) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(PointsMaterial.prototype), "copy", this).call(this, source);

      if (source.uniforms.projectiveTextureAlphaBorder) {
        // Don't copy oriented image because, it's a link to oriented image material.
        // It needs a reference to oriented image material.
        this.uniforms.projectiveTextureAlphaBorder = source.uniforms.projectiveTextureAlphaBorder;
        this.uniforms.projectiveTextureDistortion = source.uniforms.projectiveTextureDistortion;
        this.uniforms.projectiveTextureMatrix = source.uniforms.projectiveTextureMatrix;
        this.uniforms.projectiveTexture = source.uniforms.projectiveTexture;
        this.uniforms.mask = source.uniforms.mask;
        this.uniforms.boostLight = source.uniforms.boostLight;
      }

      return this;
    }
  }, {
    key: "enablePicking",
    value: function enablePicking(picking) {
      this.picking = picking;
      this.blending = picking ? THREE.NoBlending : THREE.NormalBlending;
    }
  }, {
    key: "update",
    value: function update(source) {
      this.visible = source.visible;
      this.opacity = source.opacity;
      this.transparent = source.transparent;
      this.size = source.size;
      this.mode = source.mode;
      this.picking = source.picking;
      this.scale = source.scale;
      this.overlayColor.copy(source.overlayColor);
      this.intensityRange.copy(source.intensityRange);
      Object.assign(this.defines, source.defines);
      return this;
    }
  }]);
  return PointsMaterial;
}(THREE.RawShaderMaterial);

var _default = PointsMaterial;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/RasterTile.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/RasterTile.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.RasterElevationTile = exports.RasterColorTile = exports.EMPTY_TEXTURE_ZOOM = void 0;

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _LayeredMaterial = __webpack_require__(/*! ./LayeredMaterial */ "./node_modules/itowns/lib/Renderer/LayeredMaterial.js");

var _XbilParser = __webpack_require__(/*! ../Parser/XbilParser */ "./node_modules/itowns/lib/Parser/XbilParser.js");

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var EMPTY_TEXTURE_ZOOM = -1;
exports.EMPTY_TEXTURE_ZOOM = EMPTY_TEXTURE_ZOOM;
var pitch = new THREE.Vector4();
/**
 * A `RasterTile` is part of raster [`Layer`]{@link Layer} data.
 * This part is a spatial subdivision of the extent of a layer.
 * In the `RasterTile`, The data are converted on three.js textures.
 * This `RasterTile` textures are assigned to a `LayeredMaterial`.
 * This material is applied on terrain (TileMesh).
 * The color textures are mapped to color the terrain.
 * The elevation textures are used to displace vertex terrain.
 *
 * @class RasterTile
 */

var RasterTile = /*#__PURE__*/function (_THREE$EventDispatche) {
  (0, _inherits2["default"])(RasterTile, _THREE$EventDispatche);

  var _super = _createSuper(RasterTile);

  function RasterTile(material, layer) {
    var _this;

    (0, _classCallCheck2["default"])(this, RasterTile);
    _this = _super.call(this);
    _this.layer = layer;
    _this.crs = layer.parent.tileMatrixSets.indexOf(_Crs["default"].formatToTms(layer.crs));

    if (_this.crs == -1) {
      console.error('Unknown crs:', layer.crs);
    }

    _this.textures = [];
    _this.offsetScales = [];
    _this.level = EMPTY_TEXTURE_ZOOM;
    _this.material = material;

    _this._handlerCBEvent = function () {
      _this.material.layersNeedUpdate = true;
    };

    layer.addEventListener('visible-property-changed', _this._handlerCBEvent);
    return _this;
  }

  (0, _createClass2["default"])(RasterTile, [{
    key: "id",
    get: function get() {
      return this.layer.id;
    }
  }, {
    key: "opacity",
    get: function get() {
      return this.layer.opacity;
    }
  }, {
    key: "visible",
    get: function get() {
      return this.layer.visible;
    }
  }, {
    key: "initFromParent",
    value: function initFromParent(parent, extents) {
      if (parent && parent.level > this.level) {
        var index = 0;

        var _iterator = _createForOfIteratorHelper(extents),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var c = _step.value;

            var _iterator2 = _createForOfIteratorHelper(parent.textures),
                _step2;

            try {
              for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
                var texture = _step2.value;

                if (c.isInside(texture.extent)) {
                  this.setTexture(index++, texture, c.offsetToParent(texture.extent));
                  break;
                }
              }
            } catch (err) {
              _iterator2.e(err);
            } finally {
              _iterator2.f();
            }
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      }
    }
  }, {
    key: "dispose",
    value: function dispose(removeEvent) {
      if (removeEvent) {
        this.layer.removeEventListener('visible-property-changed', this._handlerCBEvent); // dispose all events

        this._listeners = {};
      } // TODO: WARNING  verify if textures to dispose aren't attached with ancestor


      var _iterator3 = _createForOfIteratorHelper(this.textures),
          _step3;

      try {
        for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
          var texture = _step3.value;

          if (texture.isTexture) {
            texture.dispose();
          }
        }
      } catch (err) {
        _iterator3.e(err);
      } finally {
        _iterator3.f();
      }

      this.level = EMPTY_TEXTURE_ZOOM;
      this.textures = [];
      this.offsetScales = [];
      this.material.layersNeedUpdate = true;
    }
  }, {
    key: "setTexture",
    value: function setTexture(index, texture, offsetScale) {
      this.level = texture && index == 0 ? texture.extent.zoom : this.level;
      this.textures[index] = texture || null;
      this.offsetScales[index] = offsetScale;
      this.material.layersNeedUpdate = true;
    }
  }, {
    key: "setTextures",
    value: function setTextures(textures, pitchs) {
      this.dispose(false);

      for (var i = 0, il = textures.length; i < il; ++i) {
        this.setTexture(i, textures[i], pitchs[i]);
      }
    }
  }]);
  return RasterTile;
}(THREE.EventDispatcher);

var _default = RasterTile;
exports["default"] = _default;

var RasterColorTile = /*#__PURE__*/function (_RasterTile) {
  (0, _inherits2["default"])(RasterColorTile, _RasterTile);

  var _super2 = _createSuper(RasterColorTile);

  function RasterColorTile() {
    (0, _classCallCheck2["default"])(this, RasterColorTile);
    return _super2.apply(this, arguments);
  }

  (0, _createClass2["default"])(RasterColorTile, [{
    key: "effect_type",
    get: function get() {
      return this.layer.effect_type;
    }
  }, {
    key: "effect_parameter",
    get: function get() {
      return this.layer.effect_parameter;
    }
  }, {
    key: "transparent",
    get: function get() {
      return this.layer.transparent;
    }
  }]);
  return RasterColorTile;
}(RasterTile);

exports.RasterColorTile = RasterColorTile;

var RasterElevationTile = /*#__PURE__*/function (_RasterTile2) {
  (0, _inherits2["default"])(RasterElevationTile, _RasterTile2);

  var _super3 = _createSuper(RasterElevationTile);

  function RasterElevationTile(material, layer) {
    var _this2;

    (0, _classCallCheck2["default"])(this, RasterElevationTile);
    _this2 = _super3.call(this, material, layer);
    var defaultEle = {
      bias: 0,
      mode: _LayeredMaterial.ELEVATION_MODES.DATA,
      zmin: 0,
      zmax: Infinity
    };
    _this2.scaleFactor = 1.0; // Define elevation properties

    if (layer.useRgbaTextureElevation) {
      defaultEle.mode = _LayeredMaterial.ELEVATION_MODES.RGBA;
      defaultEle.zmax = 5000;
      throw new Error('Restore this feature');
    } else if (layer.useColorTextureElevation) {
      _this2.scaleFactor = layer.colorTextureElevationMaxZ - layer.colorTextureElevationMinZ;
      defaultEle.mode = _LayeredMaterial.ELEVATION_MODES.COLOR;
      defaultEle.bias = layer.colorTextureElevationMinZ;
      _this2.min = _this2.layer.colorTextureElevationMinZ;
      _this2.max = _this2.layer.colorTextureElevationMaxZ;
    } else {
      _this2.min = 0;
      _this2.max = 0;
    }

    _this2.bias = layer.bias || defaultEle.bias;
    _this2.mode = layer.mode || defaultEle.mode;
    _this2.zmin = layer.zmin || defaultEle.zmin;
    _this2.zmax = layer.zmax || defaultEle.zmax;
    layer.addEventListener('scale-property-changed', _this2._handlerCBEvent);
    return _this2;
  }

  (0, _createClass2["default"])(RasterElevationTile, [{
    key: "scale",
    get: function get() {
      return this.layer.scale * this.scaleFactor;
    }
  }, {
    key: "dispose",
    value: function dispose(removeEvent) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(RasterElevationTile.prototype), "dispose", this).call(this, removeEvent);

      if (removeEvent) {
        this.layer.removeEventListener('scale-property-changed', this._handlerCBEvent);
      }
    }
  }, {
    key: "initFromParent",
    value: function initFromParent(parent, extents) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(RasterElevationTile.prototype), "initFromParent", this).call(this, parent, extents);
      this.updateMinMaxElevation();
    }
  }, {
    key: "setTextures",
    value: function setTextures(textures, offsetScales) {
      this.replaceNoDataValueFromTexture(textures[0]);
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(RasterElevationTile.prototype), "setTextures", this).call(this, textures, offsetScales);
      this.updateMinMaxElevation();
    }
  }, {
    key: "updateMinMaxElevation",
    value: function updateMinMaxElevation() {
      if (this.textures[0] && !this.layer.useColorTextureElevation) {
        var _computeMinMaxElevati = (0, _XbilParser.computeMinMaxElevation)(this.textures[0], this.offsetScales[0], this.layer.noDataValue),
            min = _computeMinMaxElevati.min,
            max = _computeMinMaxElevati.max;

        if (this.min != min || this.max != max) {
          this.min = min;
          this.max = max;
          this.dispatchEvent({
            type: 'updatedElevation',
            node: this
          });
        }
      }
    }
  }, {
    key: "replaceNoDataValueFromTexture",
    value: function replaceNoDataValueFromTexture(texture) {
      var nodatavalue = this.layer.noDataValue;

      if (nodatavalue == undefined) {
        return;
      } // replace no datat value with parent texture value.


      var parentTexture = this.textures[0];
      var parentDataElevation = parentTexture && parentTexture.image && parentTexture.image.data;
      var dataElevation = texture.image && texture.image.data;

      if (dataElevation && parentDataElevation && !(0, _XbilParser.checkNodeElevationTextureValidity)(dataElevation, nodatavalue)) {
        texture.extent.offsetToParent(parentTexture.extent, pitch);
        (0, _XbilParser.insertSignificantValuesFromParent)(dataElevation, parentDataElevation, nodatavalue, pitch);
      }
    }
  }]);
  return RasterElevationTile;
}(RasterTile);

exports.RasterElevationTile = RasterElevationTile;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/RenderMode.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/RenderMode.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;
var MODES = {
  FINAL: 0,
  // final color
  DEPTH: 1,
  // depth buffer
  ID: 2 // id object

};

function push(object3d, mode) {
  var _object3d$mode;

  var _mode = (_object3d$mode = object3d.mode) !== null && _object3d$mode !== void 0 ? _object3d$mode : MODES.FINAL;

  if (_mode == mode) {
    return function () {};
  }

  var setMode = function (m) {
    return function (node) {
      var material = node.material;

      if (material) {
        material.mode = m;
      }
    };
  };

  object3d.traverse(setMode(mode));
  return function () {
    object3d.traverse(setMode(_mode));
  };
} // Rendering mode
// According to the rendering mode, the material's object switches
// the mode property of the materials


var _default = {
  MODES: MODES,
  push: push
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/Shader/ShaderChunk.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/Shader/ShaderChunk.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

/* babel-plugin-inline-import './Chunk/color_layers_pars_fragment.glsl' */
var color_layers_pars_fragment = "struct Layer {\n    int textureOffset;\n    int crs;\n    int effect_type;\n    float effect_parameter;\n    float opacity;\n    bool transparent;\n};\n\n#include <itowns/custom_header_colorLayer>\n\nuniform sampler2D   colorTextures[NUM_FS_TEXTURES];\nuniform vec4        colorOffsetScales[NUM_FS_TEXTURES];\nuniform Layer       colorLayers[NUM_FS_TEXTURES];\nuniform int         colorTextureCount;\n\nvec3 uvs[NUM_CRS];\n\nfloat getBorderDistance(vec2 uv) {\n    vec2 p2 = min(uv, 1. -uv);\n    return min(p2.x, p2.y);\n}\n\nfloat tolerance = 0.99;\n\nvec4 applyWhiteToInvisibleEffect(vec4 color, float intensity) {\n    float a = dot(color.rgb, vec3(0.333333333));\n    if (a >= tolerance) {\n        color.a *= 1.0 - pow(abs(a), intensity);\n    }\n    return color;\n}\n\nvec4 applyLightColorToInvisibleEffect(vec4 color, float intensity) {\n    float a = max(0.05,1. - length(color.xyz - 1.));\n    color.a *= 1.0 - pow(abs(a), intensity);\n    color.rgb *= color.rgb * color.rgb;\n    return color;\n}\n\n#if defined(DEBUG)\nuniform bool showOutline;\nuniform vec3 outlineColors[NUM_CRS];\nuniform float outlineWidth;\n\nvec4 getOutlineColor(vec3 outlineColor, vec2 uv) {\n    float alpha = 1. - clamp(getBorderDistance(uv) / outlineWidth, 0., 1.);\n    return vec4(outlineColor, alpha);\n}\n#endif\n\nuniform float minBorderDistance;\nvec4 getLayerColor(int textureOffset, sampler2D tex, vec4 offsetScale, Layer layer) {\n    if ( textureOffset >= colorTextureCount ) return vec4(0);\n\n    vec3 uv;\n    // #pragma unroll_loop\n    for ( int i = 0; i < NUM_CRS; i ++ ) {\n        if ( i == layer.crs ) uv = uvs[ i ];\n    }\n\n    float borderDistance = getBorderDistance(uv.xy);\n    if (textureOffset != layer.textureOffset + int(uv.z) || borderDistance < minBorderDistance ) return vec4(0);\n    vec4 color = texture2D(tex, pitUV(uv.xy, offsetScale));\n    if (layer.effect_type == 3) {\n        #include <itowns/custom_body_colorLayer>\n    } else {\n        if (layer.transparent && color.a != 0.0) {\n            color.rgb /= color.a;\n        }\n\n        if (layer.effect_type == 1) {\n            color = applyLightColorToInvisibleEffect(color, layer.effect_parameter);\n        } else if (layer.effect_type == 2) {\n            color = applyWhiteToInvisibleEffect(color, layer.effect_parameter);\n        }\n    }\n    color.a *= layer.opacity;\n    return color;\n}\n";

/* babel-plugin-inline-import './Chunk/elevation_pars_vertex.glsl' */
var elevation_pars_vertex = "#if NUM_VS_TEXTURES > 0\n    struct Layer {\n        float scale;\n        float bias;\n        int mode;\n        float zmin;\n        float zmax;\n    };\n\n    uniform Layer       elevationLayers[NUM_VS_TEXTURES];\n    uniform sampler2D   elevationTextures[NUM_VS_TEXTURES];\n    uniform vec4        elevationOffsetScales[NUM_VS_TEXTURES];\n    uniform int         elevationTextureCount;\n    uniform float       geoidHeight;\n\n    highp float decode32(highp vec4 rgba) {\n        highp float Sign = 1.0 - step(128.0,rgba[0])*2.0;\n        highp float Exponent = 2.0 * mod(rgba[0],128.0) + step(128.0,rgba[1]) - 127.0;\n        highp float Mantissa = mod(rgba[1],128.0)*65536.0 + rgba[2]*256.0 +rgba[3] + float(0x800000);\n        highp float Result =  Sign * exp2(Exponent) * (Mantissa * exp2(-23.0 ));\n        return Result;\n    }\n\n    float getElevationMode(vec2 uv, sampler2D tex, int mode) {\n        if (mode == ELEVATION_RGBA)\n            return decode32(texture2D( tex, uv ).abgr * 255.0);\n        if (mode == ELEVATION_DATA || mode == ELEVATION_COLOR)\n        #if defined(WEBGL2)\n            return texture2D( tex, uv ).r;\n        #else\n            return texture2D( tex, uv ).w;\n        #endif\n        return 0.;\n    }\n\n    float getElevation(vec2 uv, sampler2D tex, vec4 offsetScale, Layer layer) {\n        uv = uv * offsetScale.zw + offsetScale.xy;\n        float d = getElevationMode(uv, tex, layer.mode);\n        if (d < layer.zmin || d > layer.zmax) d = 0.;\n        return d * layer.scale + layer.bias;\n    }\n#endif\n";

/* babel-plugin-inline-import './Chunk/elevation_vertex.glsl' */
var elevation_vertex = "#if NUM_VS_TEXTURES > 0\n    if(elevationTextureCount > 0) {\n        float elevation = getElevation(uv, elevationTextures[0], elevationOffsetScales[0], elevationLayers[0]);\n        transformed += elevation * normal;\n    }\n#endif\n";

/* babel-plugin-inline-import './Chunk/geoid_vertex.glsl' */
var geoid_vertex = "transformed += geoidHeight * normal;\n";

/* babel-plugin-inline-import './Chunk/fog_fragment.glsl' */
var fog_fragment = "#if defined(USE_FOG)\n    float fogFactor = 1. - min( exp(-vFogDepth / fogDistance), 1.);\n    gl_FragColor.rgb = mix(gl_FragColor.rgb, fogColor, fogFactor);\n#endif\n";

/* babel-plugin-inline-import './Chunk/fog_pars_fragment.glsl' */
var fog_pars_fragment = "#if defined(USE_FOG)\nuniform vec3  fogColor;\nuniform float fogDistance;\nvarying float vFogDepth;\n#endif\n";

/* babel-plugin-inline-import './Chunk/lighting_fragment.glsl' */
var lighting_fragment = "if (lightingEnabled) {\n    float light = min(2. * dot(vNormal, lightPosition), 1.);\n    gl_FragColor.rgb *= light;\n}\n";

/* babel-plugin-inline-import './Chunk/lighting_pars_fragment.glsl' */
var lighting_pars_fragment = "uniform bool lightingEnabled;\nuniform vec3 lightPosition;\nvarying vec3 vNormal;\n";

/* babel-plugin-inline-import './Chunk/mode_pars_fragment.glsl' */
var mode_pars_fragment = "#if MODE == MODE_ID || MODE == MODE_DEPTH\n#include <packing>\n#endif\n\n#if MODE == MODE_ID\nuniform int objectId;\n#endif\n";

/* babel-plugin-inline-import './Chunk/mode_depth_fragment.glsl' */
var mode_depth_fragment = "#if defined(USE_LOGDEPTHBUF) && defined(USE_LOGDEPTHBUF_EXT)\ngl_FragColor = packDepthToRGBA(gl_FragDepthEXT);\n#else\nfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\ngl_FragColor = packDepthToRGBA(fragCoordZ);\n#endif";

/* babel-plugin-inline-import './Chunk/mode_id_fragment.glsl' */
var mode_id_fragment = "// 16777216.0 == 256.0 * 256.0 * 256.0\ngl_FragColor = packDepthToRGBA(float(objectId) / 16777216.0);\n";

/* babel-plugin-inline-import './Chunk/overlay_fragment.glsl' */
var overlay_fragment = "gl_FragColor.rgb = mix(gl_FragColor.rgb, overlayColor, overlayAlpha);\n";

/* babel-plugin-inline-import './Chunk/overlay_pars_fragment.glsl' */
var overlay_pars_fragment = "uniform vec3  overlayColor;\nuniform float overlayAlpha;\n";

/* babel-plugin-inline-import './Chunk/pitUV.glsl' */
var pitUV = "vec2 pitUV(vec2 uv, vec4 pit)\n{\n    return uv * pit.zw + vec2(pit.x, 1.0 - pit.w - pit.y);\n}\n\n";

/* babel-plugin-inline-import './Chunk/precision_qualifier.glsl' */
var precision_qualifier = "precision highp float;\nprecision highp int;\n";

/* babel-plugin-inline-import './Chunk/project_pars_vertex.glsl' */
var project_pars_vertex = "attribute vec3 position;\nuniform mat4 projectionMatrix;\nuniform mat4 modelViewMatrix;\n";

/* babel-plugin-inline-import './Chunk/projective_texturing_vertex.glsl' */
var projective_texturing_vertex = "for(int i = 0; i < ORIENTED_IMAGES_COUNT; ++i)\n    projectiveTextureCoords[i] = projectiveTextureMatrix[i] * mvPosition;\n";

/* babel-plugin-inline-import './Chunk/projective_texturing_pars_vertex.glsl' */
var projective_texturing_pars_vertex = "uniform mat4 projectiveTextureMatrix[ORIENTED_IMAGES_COUNT];\nvarying vec4 projectiveTextureCoords[ORIENTED_IMAGES_COUNT];\n";

/* babel-plugin-inline-import './Chunk/projective_texturing_pars_fragment.glsl' */
var projective_texturing_pars_fragment = "uniform sampler2D projectiveTexture[ORIENTED_IMAGES_COUNT];\nuniform sampler2D mask[ORIENTED_IMAGES_COUNT];\nvarying vec4      projectiveTextureCoords[ORIENTED_IMAGES_COUNT];\nuniform float     projectiveTextureAlphaBorder;\nuniform float     opacity;\nuniform bool      boostLight;\n\nstruct Distortion {\n    vec2 size;\n#if USE_DISTORTION\n    vec2 pps;\n    vec4 polynom;\n    vec3 l1l2;\n#endif\n};\n\nuniform Distortion projectiveTextureDistortion[ORIENTED_IMAGES_COUNT];\n\nfloat getAlphaBorder(vec2 p)\n{\n    vec2 d = clamp(projectiveTextureAlphaBorder * min(p, 1. - p), 0., 1.);\n    return min(d.x, d.y);\n}\n\n#if USE_DISTORTION\nvoid distort(inout vec2 p, vec4 polynom, vec2 pps)\n{\n    vec2 v = p - pps;\n    float v2 = dot(v, v);\n    if (v2 > polynom.w) {\n        p = vec2(-1.);\n    }\n    else {\n        p += (v2 * (polynom.x + v2 * (polynom.y + v2 * polynom.z) ) ) * v;\n    }\n}\n\nvoid distort(inout vec2 p, vec4 polynom, vec3 l1l2, vec2 pps)\n{\n    if ((l1l2.x == 0.) && (l1l2.y == 0.)) {\n        distort(p, polynom, pps);\n    } else {\n        vec2 AB = (p - pps) / l1l2.z;\n        float R = length(AB);\n        float lambda = atan(R) / R;\n        vec2 ab = lambda * AB;\n        float rho2 = dot(ab, ab);\n        float r357 = 1. + rho2* (polynom.x + rho2* (polynom.y + rho2 * polynom.z));\n        p = pps + l1l2.z * (r357 * ab + vec2(dot(l1l2.xy, ab), l1l2.y * ab.x));\n    }\n}\n#endif\n\nvec4 mixBaseColor(vec4 aColor, vec4 baseColor) {\n    #ifdef USE_BASE_MATERIAL\n        baseColor.rgb = aColor.a == 1.0 ? aColor.rgb : mix(baseColor, aColor, aColor.a).rgb;\n        baseColor.a = min(1.0, aColor.a + baseColor.a);\n    #else\n        baseColor.rgb += aColor.rgb * aColor.a;\n        baseColor.a += aColor.a;\n    #endif\n    return baseColor;\n}\n\nvec4 projectiveTextureColor(vec4 coords, Distortion distortion, sampler2D tex, sampler2D mask, vec4 baseColor) {\n    vec3 p = coords.xyz / coords.w;\n    if(p.z * p.z < 1.) {\n#if USE_DISTORTION\n        p.xy *= distortion.size;\n        distort(p.xy, distortion.polynom, distortion.l1l2, distortion.pps);\n        p.xy /= distortion.size;\n#endif\n\n        float d = getAlphaBorder(p.xy) * texture2D(mask, p.xy).r;\n\n        if(d > 0.) {\n\n#if DEBUG_ALPHA_BORDER\n        vec3 r = texture2D(tex, p.xy).rgb;\n        return mixBaseColor(vec4( r.r * d, r.g, r.b, 1.0), baseColor);\n#else\n        vec4 color = texture2D(tex, p.xy);\n        color.a *= d;\n        if (boostLight) {\n            return mixBaseColor(vec4(sqrt(color.rgb), color.a), baseColor);\n        } else {\n            return mixBaseColor(color, baseColor);\n        }\n#endif\n\n        }\n    }\n    return mixBaseColor(vec4(0.), baseColor);\n}\n";

/* babel-plugin-inline-import './Chunk/WebGL2_pars_vertex.glsl' */
var WebGL2_pars_vertex = "// Copy from GLSL 3.0 conversion for built-in materials and ShaderMaterial in THREE.WebGLProgram\n// https://github.com/mrdoob/three.js/blob/696d7836d1fc56c4702a475e6991c4adef7357f4/src/renderers/webgl/WebGLProgram.js#L682\n#if defined(WEBGL2)\n#define attribute in\n#define varying out\n#define texture2D texture\n#endif\n";

/* babel-plugin-inline-import './Chunk/WebGL2_pars_fragment.glsl' */
var WebGL2_pars_fragment = "// Copy from GLSL 3.0 conversion for built-in materials and ShaderMaterial in THREE.WebGLProgram\n// https://github.com/mrdoob/three.js/blob/696d7836d1fc56c4702a475e6991c4adef7357f4/src/renderers/webgl/WebGLProgram.js#L682\n#if defined(WEBGL2)\n#define varying in\nout highp vec4 pc_fragColor;\n#define gl_FragColor pc_fragColor\n#define gl_FragDepthEXT gl_FragDepth\n#define texture2D texture\n#define textureCube texture\n#define texture2DProj textureProj\n#define texture2DLodEXT textureLod\n#define texture2DProjLodEXT textureProjLod\n#define textureCubeLodEXT textureLod\n#define texture2DGradEXT textureGrad\n#define texture2DProjGradEXT textureProjGrad\n#define textureCubeGradEXT textureGrad\n#endif\n";
var custom_header_colorLayer = '// no custom header';
var custom_body_colorLayer = '// no custom body';
var itownsShaderChunk = {
  color_layers_pars_fragment: color_layers_pars_fragment,
  custom_body_colorLayer: custom_body_colorLayer,
  custom_header_colorLayer: custom_header_colorLayer,
  elevation_pars_vertex: elevation_pars_vertex,
  elevation_vertex: elevation_vertex,
  geoid_vertex: geoid_vertex,
  fog_fragment: fog_fragment,
  fog_pars_fragment: fog_pars_fragment,
  lighting_fragment: lighting_fragment,
  lighting_pars_fragment: lighting_pars_fragment,
  mode_depth_fragment: mode_depth_fragment,
  mode_id_fragment: mode_id_fragment,
  mode_pars_fragment: mode_pars_fragment,
  overlay_fragment: overlay_fragment,
  overlay_pars_fragment: overlay_pars_fragment,
  pitUV: pitUV,
  precision_qualifier: precision_qualifier,
  projective_texturing_vertex: projective_texturing_vertex,
  projective_texturing_pars_vertex: projective_texturing_pars_vertex,
  projective_texturing_pars_fragment: projective_texturing_pars_fragment,
  project_pars_vertex: project_pars_vertex,
  WebGL2_pars_vertex: WebGL2_pars_vertex,
  WebGL2_pars_fragment: WebGL2_pars_fragment
};
/**
 * The ShaderChunkManager manages the itowns chunks shader.
 * It adds chunks to THREE.ShaderChunk to compile shaders
 *
 * In itowns, if you want access to `ShaderChunkManager` instance :
 *
 * ```js
 * import ShaderChunk from 'Renderer/Shader/ShaderChunk';
 * ```
 * or
 * ```js
 * const ShaderChunk = itowns.ShaderChunk';
 * ```
 *
 * @property {Object} target - The target to install the chunks into.
 * @property {string} [path] - A path to add before a chunk name as a prefix.
 *
 */

var ShaderChunkManager = /*#__PURE__*/function () {
  /**
   * Constructs a new instance ShaderChunkManager.
   *
   * @constructor
   *
   * @param {Object} target - The target to install the chunks into.
   * @param {string} [path] - A path to add before a chunk name as a prefix.
   *
   */
  function ShaderChunkManager(target, path) {
    (0, _classCallCheck2["default"])(this, ShaderChunkManager);
    this.path = path;
    this.target = target;
    this.install();
  }
  /**
   * Set the header ColorLayer shader.
   *
   * @param  {string}  header  The glsl header
   */


  (0, _createClass2["default"])(ShaderChunkManager, [{
    key: "customHeaderColorLayer",
    value: function customHeaderColorLayer(header) {
      itownsShaderChunk.custom_header_colorLayer = header;
      this.target["".concat(this.path, "custom_header_colorLayer")] = header;
    }
    /**
     * Set the body ColorLayer shader.
     * You could define you color terrain shader, with a header and a body.
     * the header defines yours fonctions and the body defines the process on ColorLayer.
     * @example <caption>Custom shader chunk</caption>
     *  itowns.ShaderChunk.customHeaderColorLayer(`
     *  // define yours methods
     *  vec4 myColor(vec4 color, float a) {
     *      return color * a;
     *  }
     * `);
     * itowns.ShaderChunk.customBodyColorLayer(`
     *  // the body set final color layer.
     *  // layer.amount_effect is variable, it could be change in Layer instance.
     *  color = myColor(color, layer.amount_effect)
     * `);
     *
     *  var colorLayer = new itowns.ColorLayer('OPENSM', {
     *    source,
     *    type_effect: itowns.colorLayerEffects.customEffect,
     *    amount_effect: 0.5,
     *  });
     *
     * @param  {string}  body  The glsl body
     */

  }, {
    key: "customBodyColorLayer",
    value: function customBodyColorLayer(body) {
      itownsShaderChunk.custom_body_colorLayer = body;
      this.target["".concat(this.path, "custom_body_colorLayer")] = body;
    }
    /**
     * Install chunks in a target, for example THREE.ShaderChunk, with adding an
     * optional path.
     *
     * @param {Object} target - The target to install the chunks into.
     * @param {Object} chunks - The chunks to install. The key of each chunk will be
     * the name of installation of the chunk in the target (plus an optional path).
     * @param {string} [path] - A path to add before a chunk name as a prefix.
     *
     * @return {Object} The target with installed chunks.
     */

  }, {
    key: "install",
    value: function install() {
      var _this = this;

      var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.target;
      var chunks = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : itownsShaderChunk;
      var path = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.path;
      Object.keys(chunks).forEach(function (key) {
        Object.defineProperty(_this, key, {
          get: function get() {
            return chunks[key];
          }
        });
        target[path + key] = chunks[key];
      });
      return target;
    }
  }]);
  return ShaderChunkManager;
}();

var ShaderChunk = new ShaderChunkManager(THREE.ShaderChunk, 'itowns/');
var _default = ShaderChunk;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/Shader/ShaderUtils.js":
/*!****************************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/Shader/ShaderUtils.js ***!
  \****************************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;
var pattern_gl_Position = 'gl_Position.*(?![^]*gl_Position)';
var pattern_Main = '[^\\w]*main[^\\w]*(void)?[^\\w]*{';
var rePosition = new RegExp(pattern_gl_Position);
var reMain = new RegExp(pattern_Main);
var _default = {
  patchMaterialForLogDepthSupport: function patchMaterialForLogDepthSupport(material) {
    // Check if the shader does not already use the log depth buffer
    if (material.vertexShader.includes('USE_LOGDEPTHBUF') || material.vertexShader.includes('logdepthbuf_pars_vertex')) {
      return;
    } // Add vertex shader log depth buffer header


    material.vertexShader = "#include <logdepthbuf_pars_vertex>\n#define EPSILON 1e-6\n".concat(material.vertexShader); // Add log depth buffer code snippet after last gl_Position modification

    var re = rePosition.exec(material.vertexShader);
    var idx = re[0].length + re.index;
    material.vertexShader = "".concat(material.vertexShader.slice(0, idx), "\n#include <logdepthbuf_vertex>\n").concat(material.vertexShader.slice(idx)); // Add fragment shader log depth buffer header

    material.fragmentShader = "#include <itowns/precision_qualifier\n".concat(material.fragmentShader);
    material.fragmentShader = "#include <logdepthbuf_pars_fragment>\n".concat(material.fragmentShader); // Add log depth buffer code snippet at the first line of the main function

    re = reMain.exec(material.fragmentShader);
    idx = re[0].length + re.index;
    material.fragmentShader = "".concat(material.fragmentShader.slice(0, idx), "\n#include <logdepthbuf_fragment>\n").concat(material.fragmentShader.slice(idx));
    material.defines = {
      USE_LOGDEPTHBUF: 1,
      USE_LOGDEPTHBUF_EXT: 1
    };
  },
  // adapted from unrollLoops in WebGLProgram
  unrollLoops: function unrollLoops(string, defines) {
    // look for a for loop with an unroll_loop pragma
    // The detection of the scope of the for loop is hacky as it does not support nested scopes
    function replace(match, start, end, snippet) {
      var unroll = '';
      start = start in defines ? defines[start] : parseInt(start, 10);
      end = end in defines ? defines[end] : parseInt(end, 10);

      for (var i = start; i < end; i++) {
        unroll += snippet.replace(/\bi\b/g, " ".concat(i, " "));
      }

      return unroll;
    }

    return string.replace(/#pragma unroll_loop\s+for\s*\(\s*int\s+i\s*=\s*([\w\d]+);\s*i\s+<\s+([\w\d]+);\s*i\s*\+\+\s*\)\s*\{\n([^}]*)\}/g, replace);
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Renderer/c3DEngine.js":
/*!*******************************************************!*\
  !*** ./node_modules/itowns/lib/Renderer/c3DEngine.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Capabilities = _interopRequireDefault(__webpack_require__(/*! ../Core/System/Capabilities */ "./node_modules/itowns/lib/Core/System/Capabilities.js"));

var _LayeredMaterial = __webpack_require__(/*! ./LayeredMaterial */ "./node_modules/itowns/lib/Renderer/LayeredMaterial.js");

var _WebGL = _interopRequireDefault(__webpack_require__(/*! ../ThreeExtended/capabilities/WebGL */ "./node_modules/itowns/lib/ThreeExtended/capabilities/WebGL.js"));

var _Label2DRenderer = _interopRequireDefault(__webpack_require__(/*! ./Label2DRenderer */ "./node_modules/itowns/lib/Renderer/Label2DRenderer.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

/**
 * Generated On: 2015-10-5
 * Class: c3DEngine
 * Description: 3DEngine est l'interface avec le framework webGL.
 */
var depthRGBA = new THREE.Vector4();

var c3DEngine = /*#__PURE__*/function () {
  function c3DEngine(rendererOrDiv) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, c3DEngine);
    var NOIE = !_Capabilities["default"].isInternetExplorer(); // pick sensible default options

    if (options.antialias === undefined) {
      options.antialias = true;
    }

    if (options.alpha === undefined) {
      options.alpha = true;
    }

    if (options.logarithmicDepthBuffer === undefined) {
      options.logarithmicDepthBuffer = this.gLDebug || NOIE;
    }

    if (options.isWebGL2 === undefined) {
      options.isWebGL2 = true;
    } // If rendererOrDiv parameter is a domElement, we use it as support to display data.
    // If it is a renderer, we check the renderer.domElement parameter which can be :
    //    - a domElement, in this case we use this domElement as a support
    //    - a canvas, in this case we use the canvas parent (which should be a domElement) as a support


    var renderer;
    var viewerDiv;

    if (rendererOrDiv.domElement) {
      renderer = rendererOrDiv;
      viewerDiv = renderer.domElement instanceof HTMLDivElement ? renderer.domElement : renderer.domElement.parentElement;
    } else {
      viewerDiv = rendererOrDiv;
    }

    this.width = viewerDiv.clientWidth;
    this.height = viewerDiv.clientHeight;
    this.positionBuffer = null;
    this._nextThreejsLayer = 1;
    this.fullSizeRenderTarget = new THREE.WebGLRenderTarget(this.width, this.height);
    this.fullSizeRenderTarget.texture.minFilter = THREE.LinearFilter;
    this.fullSizeRenderTarget.texture.magFilter = THREE.NearestFilter;
    this.fullSizeRenderTarget.depthBuffer = true;
    this.fullSizeRenderTarget.depthTexture = new THREE.DepthTexture();
    this.fullSizeRenderTarget.depthTexture.type = THREE.UnsignedShortType;

    this.renderView = function (view) {
      this.renderer.clear();
      this.renderer.render(view.scene, view.camera.camera3D);

      if (view.tileLayer) {
        this.label2dRenderer.render(view.tileLayer.object3d, view.camera.camera3D);
      }
    }.bind(this);

    this.onWindowResize = function (w, h) {
      this.width = w;
      this.height = h;
      this.fullSizeRenderTarget.setSize(this.width, this.height);
      this.renderer.setSize(this.width, this.height);
      this.label2dRenderer.setSize(this.width, this.height);
    }.bind(this); // Create renderer


    try {
      this.label2dRenderer = new _Label2DRenderer["default"]();
      this.label2dRenderer.setSize(this.width, this.height);
      viewerDiv.appendChild(this.label2dRenderer.domElement);
      this.renderer = renderer || new (options.isWebGL2 ? THREE.WebGLRenderer : THREE.WebGL1Renderer)({
        canvas: document.createElement('canvas'),
        antialias: options.antialias,
        alpha: options.alpha,
        logarithmicDepthBuffer: options.logarithmicDepthBuffer
      });
      this.renderer.domElement.style.position = 'relative';
      this.renderer.domElement.style.zIndex = 0;
      this.renderer.domElement.style.top = 0;
    } catch (ex) {
      var versionWebGL = options.isWebGL2 ? '2' : '1';
      console.error("Failed to create WebGLRenderer webGL ".concat(versionWebGL, "."));
      this.renderer = null;
    }

    if (!this.renderer) {
      if (!_WebGL["default"].isWebGLAvailable()) {
        viewerDiv.appendChild(_WebGL["default"].getErrorMessage(1));
      } else if (!_WebGL["default"].isWebGL2Available()) {
        viewerDiv.appendChild(_WebGL["default"].getErrorMessage(2));
      }

      throw new Error('WebGL unsupported');
    }

    if (!renderer && options.logarithmicDepthBuffer) {
      // We don't support logarithmicDepthBuffer when EXT_frag_depth is missing.
      // So recreated a renderer if needed.
      if (!this.renderer.capabilities.isWebGL2 && !this.renderer.extensions.get('EXT_frag_depth')) {
        this.renderer.dispose();
        this.renderer = new (options.isWebGL2 ? THREE.WebGLRenderer : THREE.WebGL1Renderer)({
          canvas: document.createElement('canvas'),
          antialias: options.antialias,
          alpha: options.alpha,
          logarithmicDepthBuffer: false
        });
      }
    } // Let's allow our canvas to take focus
    // The condition below looks weird, but it's correct: querying tabIndex
    // returns -1 if not set, but we still need to explicitly set it to force
    // the tabindex focus flag to true (see
    // https://www.w3.org/TR/html5/editing.html#specially-focusable)


    if (this.renderer.domElement.tabIndex === -1) {
      this.renderer.domElement.tabIndex = -1;
    }

    _Capabilities["default"].updateCapabilities(this.renderer);

    this.renderer.setClearColor(0x030508);
    this.renderer.autoClear = false;
    this.renderer.sortObjects = true;
    this.renderer.debug.checkShaderErrors = false;

    if (!renderer) {
      this.renderer.setPixelRatio(viewerDiv.devicePixelRatio);
      this.renderer.setSize(viewerDiv.clientWidth, viewerDiv.clientHeight);
      viewerDiv.appendChild(this.renderer.domElement);
    }
  }

  (0, _createClass2["default"])(c3DEngine, [{
    key: "getWindowSize",
    value: function getWindowSize() {
      return new THREE.Vector2(this.width, this.height);
    }
    /**
     * return renderer THREE.js
     * @returns {undefined|THREE.WebGLRenderer}
     */

  }, {
    key: "getRenderer",
    value: function getRenderer() {
      return this.renderer;
    }
    /**
     * Render view to a Uint8Array.
     *
     * @param {View} view - The view to render
     * @param {object} [zone] - partial zone to render
     * @param {number} zone.x - x (in view coordinate)
     * @param {number} zone.y - y (in view coordinate)
     * @param {number} zone.width - width of area to render (in pixels)
     * @param {number} zone.height - height of area to render (in pixels)
     * @return {THREE.RenderTarget} - Uint8Array, 4 bytes per pixel. The first pixel in
     * the array is the bottom-left pixel.
     */

  }, {
    key: "renderViewToBuffer",
    value: function renderViewToBuffer(view, zone) {
      if (!zone) {
        zone = {
          x: 0,
          y: 0,
          width: this.width,
          height: this.height
        };
      }

      zone.buffer = zone.buffer || new Uint8Array(4 * zone.width * zone.height);
      this.renderViewToRenderTarget(view, this.fullSizeRenderTarget, zone);
      this.renderer.readRenderTargetPixels(this.fullSizeRenderTarget, zone.x, this.height - (zone.y + zone.height), zone.width, zone.height, zone.buffer);
      return zone.buffer;
    }
    /**
     * Render view to a THREE.RenderTarget.
     *
     * @param {View} view - The view to render
     * @param {THREE.RenderTarget} [target] - destination render target. Default value: full size render target owned by c3DEngine.
     * @param {object} [zone] - partial zone to render (zone x/y uses view coordinates) Note: target must contain complete zone
     * @return {THREE.RenderTarget} - the destination render target
     */

  }, {
    key: "renderViewToRenderTarget",
    value: function renderViewToRenderTarget(view, target, zone) {
      if (!target) {
        target = this.fullSizeRenderTarget;
      }

      var current = this.renderer.getRenderTarget(); // Don't use setViewport / setScissor on renderer because they would affect
      // on screen rendering as well. Instead set them on the render target.
      // Example : this.fullSizeRenderTarget.viewport.set(0, 0, target.width, target.height);

      if (zone) {
        this.fullSizeRenderTarget.scissor.set(zone.x, target.height - (zone.y + zone.height), zone.width, zone.height);
        this.fullSizeRenderTarget.scissorTest = true;
      }

      this.renderer.setRenderTarget(target);
      this.renderer.clear(true, true, false);
      this.renderer.render(view.scene, view.camera.camera3D);
      this.renderer.setRenderTarget(current);
      this.fullSizeRenderTarget.scissorTest = false;
      return target;
    }
  }, {
    key: "bufferToImage",
    value: function bufferToImage(pixelBuffer, width, height) {
      var canvas = document.createElement('canvas');
      var ctx = canvas.getContext('2d'); // size the canvas to your desired image

      canvas.width = width;
      canvas.height = height;
      var imgData = ctx.getImageData(0, 0, width, height);
      imgData.data.set(pixelBuffer);
      ctx.putImageData(imgData, 0, 0); // create a new img object

      var image = new Image(); // set the img.src to the canvas data url

      image.src = canvas.toDataURL();
      return image;
    }
  }, {
    key: "getUniqueThreejsLayer",
    value: function getUniqueThreejsLayer() {
      // We use three.js Object3D.layers feature to manage visibility of
      // geometry layers; so we need an internal counter to assign a new
      // one to each new geometry layer.
      // Warning: only 32 ([0, 31]) different layers can exist.
      if (this._nextThreejsLayer > 31) {
        console.warn('Too much three.js layers. Starting from now all of them will use layerMask = 31');
        this._nextThreejsLayer = 31;
      }

      var result = this._nextThreejsLayer++;
      return result;
    }
  }, {
    key: "depthBufferRGBAValueToOrthoZ",
    value: function depthBufferRGBAValueToOrthoZ(depthBufferRGBA, camera) {
      depthRGBA.fromArray(depthBufferRGBA).divideScalar(255.0);

      if (_Capabilities["default"].isLogDepthBufferSupported() && camera.type == 'PerspectiveCamera') {
        var gl_FragDepthEXT = (0, _LayeredMaterial.unpack1K)(depthRGBA);
        var logDepthBufFC = 2.0 / (Math.log(camera.far + 1.0) / Math.LN2); // invert function : gl_FragDepthEXT = log2(vFragDepth) * logDepthBufFC * 0.5;

        return Math.pow(2, 2 * gl_FragDepthEXT / logDepthBufFC);
      } else {
        var gl_FragCoord_Z = (0, _LayeredMaterial.unpack1K)(depthRGBA);
        gl_FragCoord_Z = gl_FragCoord_Z * 2.0 - 1.0;
        return gl_FragCoord_Z;
      }
    }
  }]);
  return c3DEngine;
}();

var _default = c3DEngine;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/C3DTilesSource.js":
/*!**********************************************************!*\
  !*** ./node_modules/itowns/lib/Source/C3DTilesSource.js ***!
  \**********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Source2 = _interopRequireDefault(__webpack_require__(/*! ./Source */ "./node_modules/itowns/lib/Source/Source.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ../Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var C3DTilesSource = /*#__PURE__*/function (_Source) {
  (0, _inherits2["default"])(C3DTilesSource, _Source);

  var _super = _createSuper(C3DTilesSource);

  function C3DTilesSource(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, C3DTilesSource);
    _this = _super.call(this, source);
    _this.baseUrl = _this.url.slice(0, _this.url.lastIndexOf('/') + 1);
    _this.whenReady = _Fetcher["default"].json(_this.url, _this.networkOptions);
    return _this;
  }

  return (0, _createClass2["default"])(C3DTilesSource);
}(_Source2["default"]);

var _default = C3DTilesSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/EntwinePointTileSource.js":
/*!******************************************************************!*\
  !*** ./node_modules/itowns/lib/Source/EntwinePointTileSource.js ***!
  \******************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _proj = _interopRequireDefault(__webpack_require__(/*! proj4 */ "./node_modules/proj4/lib/index.js"));

var _LASParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/LASParser */ "./node_modules/itowns/lib/Parser/LASParser.js"));

var _PotreeBinParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/PotreeBinParser */ "./node_modules/itowns/lib/Parser/PotreeBinParser.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ../Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

var _Source2 = _interopRequireDefault(__webpack_require__(/*! ./Source */ "./node_modules/itowns/lib/Source/Source.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @classdesc
 * An object defining the source of Entwine Point Tile data. It fetches and
 * parses the main configuration file of Entwine Point Tile format,
 * [`ept.json`](https://entwine.io/entwine-point-tile.html#ept-json).
 *
 * @extends Source
 *
 * @property {boolean} isEntwinePointTileSource - Used to checkout whether this
 * source is a EntwinePointTileSource. Default is true. You should not change
 * this, as it is used internally for optimisation.
 * @property {string} url - The URL of the directory containing the whole
 * Entwine Point Tile structure.
 */
var EntwinePointTileSource = /*#__PURE__*/function (_Source) {
  (0, _inherits2["default"])(EntwinePointTileSource, _Source);

  var _super = _createSuper(EntwinePointTileSource);

  /**
   * @constructor
   *
   * @param {Object} config - The configuration, see {@link Source} for
   * available values.
   * @param {number|string} [config.colorDepth='auto'] - Does the color
   * encoding is known ? Is it `8` or `16` bits ? By default it is to
   * `'auto'`, but it will be more performant if a specific value is set.
   */
  function EntwinePointTileSource(config) {
    var _this;

    (0, _classCallCheck2["default"])(this, EntwinePointTileSource);
    _this = _super.call(this, config);
    _this.isEntwinePointTileSource = true;
    _this.colorDepth = config.colorDepth; // Necessary because we use the url without the ept.json part as a base

    _this.url = _this.url.replace('/ept.json', ''); // https://entwine.io/entwine-point-tile.html#ept-json

    _this.whenReady = _Fetcher["default"].json("".concat(_this.url, "/ept.json"), _this.networkOptions).then(function (metadata) {
      // Set parser and its configuration from schema
      _this.parse = metadata.dataType === 'laszip' ? _LASParser["default"].parse : _PotreeBinParser["default"].parse;
      _this.extension = metadata.dataType === 'laszip' ? 'laz' : 'bin';

      if (metadata.srs && metadata.srs.authority && metadata.srs.horizontal) {
        _this.crs = "".concat(metadata.srs.authority, ":").concat(metadata.srs.horizontal);

        if (!_proj["default"].defs(_this.crs)) {
          _proj["default"].defs(_this.crs, metadata.srs.wkt);
        }

        if (metadata.srs.vertical && metadata.srs.vertical !== metadata.srs.horizontal) {
          console.warn('EntwinePointTileSource: Vertical coordinates system code is not yet supported.');
        }
      } // NOTE: this spacing is kinda arbitrary here, we take the width and
      // length (height can be ignored), and we divide by the specified
      // span in ept.json. This needs improvements.


      _this.spacing = (Math.abs(metadata.boundsConforming[3] - metadata.boundsConforming[0]) + Math.abs(metadata.boundsConforming[4] - metadata.boundsConforming[1])) / (2 * metadata.span);
      _this.boundsConforming = metadata.boundsConforming;
      _this.span = metadata.span;
      return (0, _assertThisInitialized2["default"])(_this);
    });
    _this.fetcher = _Fetcher["default"].arrayBuffer;
    return _this;
  }

  return (0, _createClass2["default"])(EntwinePointTileSource);
}(_Source2["default"]);

var _default = EntwinePointTileSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/FileSource.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Source/FileSource.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Source2 = _interopRequireDefault(__webpack_require__(/*! ./Source */ "./node_modules/itowns/lib/Source/Source.js"));

var _Cache = _interopRequireDefault(__webpack_require__(/*! ../Core/Scheduler/Cache */ "./node_modules/itowns/lib/Core/Scheduler/Cache.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @classdesc
 * An object defining the source of a single resource to get from a direct
 * access. It inherits from {@link Source}. There is multiple ways of adding a
 * resource here:
 * <ul>
 *  <li>add the file like any other sources, using the `url` property.</li>
 *  <li>fetch the file, and give the data to the source using the `fetchedData`
 *  property.</li>
 *  <li>fetch the file, parse it and git the parsed data to the source using the
 *  `features` property.</li>
 * </ul>
 * See the examples below for real use cases.
 *
 * @extends Source
 *
 * @property {boolean} isFileSource - Used to checkout whether this source is a
 * FileSource. Default is true. You should not change this, as it is used
 * internally for optimisation.
 * @property {*} fetchedData - Once the file has been loaded, the resulting data
 * is stored in this property.
 * @property {*} features - Once the file has been loaded and parsed, the
 * resulting data is stored in this property.
 *
 * @example <caption>Simple: create a source, a layer, and let iTowns taking
 * care of everything.</caption>
 * const kmlSource = new itowns.FileSource({
 *     url: 'https://raw.githubusercontent.com/iTowns/iTowns2-sample-data/master/croquis.kml',
 *     crs: 'EPSG:4326',
 *     fetcher: itowns.Fetcher.xml,
 *     parser: itowns.KMLParser.parse,
 * });
 *
 * const kmlLayer = new itowns.ColorLayer('Kml', {
 *     name: 'kml',
 *     transparent: true,
 *     crs: view.tileLayer.extent.crs,
 *     source: kmlSource,
 * });
 *
 * view.addLayer(kmlLayer);
 *
 * @example <caption>Advanced: fetch some data, create a source, a layer, and
 * let iTowns do the parsing and converting.</caption>
 * // Parse and Convert by iTowns
 * itowns.Fetcher.xml('https://raw.githubusercontent.com/iTowns/iTowns2-sample-data/master/ULTRA2009.gpx')
 *     .then(function _(gpx) {
 *         const gpxSource = new itowns.FileSource({
 *             data: gpx,
 *             crs: 'EPSG:4326',
 *             parser: itowns.GpxParser.parse,
 *         });
 *
 *         const gpxLayer = new itowns.ColorLayer('Gpx', {
 *             name: 'Ultra 2009',
 *             transparent: true,
 *             source: gpxSource,
 *         });
 *
 *         return view.addLayer(gpxLayer);
 *     });
 *
 * @example <caption>More advanced: create a layer, fetch some data, parse the
 * data, append a source to the layer and add the layer to iTowns.</caption>
 * // Create a layer
 * const ariege = new itowns.GeometryLayer('ariege', new itowns.THREE.Group());
 *
 * // Specify update method and conversion
 * ariege.update = itowns.FeatureProcessing.update;
 * ariege.convert = itowns.Feature2Mesh.convert({
 *     color: () => new itowns.THREE.Color(0xffcc00),
 *     extrude: () => 5000,
 * });
 *
 * itowns.Fetcher.json('https://raw.githubusercontent.com/gregoiredavid/france-geojson/master/departements/09-ariege/departement-09-ariege.geojson')
 *     .then(function _(geojson) {
 *         return itowns.GeoJsonParser.parse(geojson, {
 *             in: { crs: 'EPSG:4326' },
 *             out: { crs: view.tileLayer.extent.crs,
 *                      style: new itowns.Style({
 *                          fill: {
 *                              color: new itowns.THREE.Color(0xffcc00),
 *                              extrusion_height: () => 5000,
 *                      }),
 *                  },
 *             },
 *         });
 *     }).then(function _(features) {
 *         ariege.source = new itowns.FileSource({
 *             crs: 'EPSG:4326',
 *             features,
 *         });
 *
 *         return view.addLayer(ariegeLayer);
 *     });
 */
var FileSource = /*#__PURE__*/function (_Source) {
  (0, _inherits2["default"])(FileSource, _Source);

  var _super = _createSuper(FileSource);

  /**
   * @param {Object} source - An object that can contain all properties of a
   * FileSource and {@link Source}. Only `crs` is mandatory, but if it
   * presents in `features` under the property `crs`, it is fine.
   *
   * @constructor
   */
  function FileSource(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, FileSource);

    /* istanbul ignore next */
    if (source.parsedData) {
      console.warn('FileSource parsedData parameter is deprecated, use features instead of.');
      source.features = source.features || source.parsedData;
    }
    /* istanbul ignore next */


    if (source.projection) {
      console.warn('FileSource projection parameter is deprecated, use crs instead.');
      source.crs = source.crs || source.projection;
    }

    if (!source.crs) {
      if (source.features && source.features.crs) {
        source.crs = source.features.crs;
      } else {
        throw new Error('source.crs is required in FileSource');
      }
    }

    if (!source.url && !source.fetchedData && !source.features) {
      throw new Error("url, fetchedData and features are not set in\n                FileSource; at least one needs to be present");
    } // the fake url is for when we use the fetchedData or features mode


    source.url = source.url || 'fake-file-url';
    _this = _super.call(this, source);
    _this.isFileSource = true;
    _this.fetchedData = source.fetchedData;

    if (!_this.fetchedData && !source.features) {
      _this.whenReady = _this.fetcher(_this.urlFromExtent(), _this.networkOptions).then(function (f) {
        _this.fetchedData = f;
      });
    } else if (source.features) {
      _this._featuresCaches[source.features.crs] = new _Cache["default"]();

      _this._featuresCaches[source.features.crs].setByArray(Promise.resolve(source.features), [0]);
    }

    _this.whenReady.then(function () {
      return _this.fetchedData;
    });

    _this.zoom = {
      min: 0,
      max: Infinity
    };
    return _this;
  }

  (0, _createClass2["default"])(FileSource, [{
    key: "urlFromExtent",
    value: function urlFromExtent() {
      return this.url;
    }
  }, {
    key: "onLayerAdded",
    value: function onLayerAdded(options) {
      var _this2 = this;

      options["in"] = this;
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(FileSource.prototype), "onLayerAdded", this).call(this, options);

      var features = this._featuresCaches[options.out.crs].getByArray([0]);

      if (!features) {
        options.out.buildExtent = this.crs != 'EPSG:4978';

        if (options.out.buildExtent) {
          options.out.forcedExtentCrs = options.out.crs != 'EPSG:4978' ? options.out.crs : _Crs["default"].formatToEPSG(this.crs);
        }

        features = this.parser(this.fetchedData, options);

        this._featuresCaches[options.out.crs].setByArray(features, [0]);
      }

      features.then(function (data) {
        if (data.extent) {
          _this2.extent = data.extent.clone(); // Transform local extent to data.crs projection.

          if (_this2.extent.crs == data.crs) {
            _this2.extent.applyMatrix4(data.matrixWorld);
          }
        }

        if (data.isFeatureCollection) {
          data.setParentStyle(options.out.style);
        }
      });
    }
    /**
     * load  data from cache or Fetch/Parse data.
     * The loaded data is a Feature or Texture.
     *
     * @param      {Extent}  extent   extent requested parsed data.
     * @param      {FeatureBuildingOptions|Layer}  out  The feature returned options
     * @return     {FeatureCollection|Texture}  The parsed data.
     */

  }, {
    key: "loadData",
    value: function loadData(extent, out) {
      return this._featuresCaches[out.crs].getByArray([0]);
    }
  }, {
    key: "extentInsideLimit",
    value: function extentInsideLimit(extent) {
      return this.extent.intersectsExtent(extent);
    }
  }]);
  return FileSource;
}(_Source2["default"]);

var _default = FileSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/OrientedImageSource.js":
/*!***************************************************************!*\
  !*** ./node_modules/itowns/lib/Source/OrientedImageSource.js ***!
  \***************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Source2 = _interopRequireDefault(__webpack_require__(/*! ./Source */ "./node_modules/itowns/lib/Source/Source.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ../Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @classdesc OrientedImageSource is a specific source used to load oriented images.
 * @extends Source
 */
var OrientedImageSource = /*#__PURE__*/function (_Source) {
  (0, _inherits2["default"])(OrientedImageSource, _Source);

  var _super = _createSuper(OrientedImageSource);

  /**
   * @constructor
   * @param { Object } source - Configuration object
   * @param { string } source.url - Url for all the textures.
   * @param { string } source.orientationsUrl - Json Url, using GeoJSon format to represent points,
   * it's a set of panoramic position and orientation.
   * @param { string } source.calibrationUrl - Json url, representing a set of camera. see [CameraCalibrationParser]{@link module:CameraCalibrationParser}
   * This Url must contains {sensorId} and {cameraId}, and these pattern will be replaced to build the Url,
   * to find the good texture for each camera for each panoramic.
   */
  function OrientedImageSource(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, OrientedImageSource);
    source.format = source.format || 'json';
    _this = _super.call(this, source);
    _this.isOrientedImageSource = true; // Fetch the two files

    var promises = [];
    promises.push(source.orientationsUrl ? _Fetcher["default"].json(source.orientationsUrl, _this.networkOptions) : Promise.resolve());
    promises.push(source.calibrationUrl ? _Fetcher["default"].json(source.calibrationUrl, _this.networkOptions) : Promise.resolve());
    _this.whenReady = Promise.all(promises).then(function (data) {
      return {
        orientation: data[0],
        calibration: data[1]
      };
    });
    return _this;
  }
  /**
   * Build the url of the texture, but not from extent.
   *
   * @param      {Object}  imageInfo - Information about the texture
   * @param      {string}  imageInfo.camera - Id of the camera
   * @param      {string}  imageInfo.pano - Id of the panoramic
   * @return     {string}  Url of the image
   */


  (0, _createClass2["default"])(OrientedImageSource, [{
    key: "urlFromExtent",
    value: function urlFromExtent(imageInfo) {
      return this.imageUrl(imageInfo.cameraId, imageInfo.panoId);
    }
  }, {
    key: "requestToKey",
    value: function requestToKey(image) {
      return [image.cameraId, image.panoId];
    }
    /**
     * Build the url of the image, for a given panoramic id, and a given camera id.
     *
     * @param      {string}  cameraId  Id of the camera
     * @param      {string}  panoId   Id of the panoramic
     * @return     {string}  Url of the image
     */

  }, {
    key: "imageUrl",
    value: function imageUrl(cameraId, panoId) {
      return this.url.replace('{cameraId}', cameraId).replace('{panoId}', panoId);
    }
  }]);
  return OrientedImageSource;
}(_Source2["default"]);

var _default = OrientedImageSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/PotreeSource.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Source/PotreeSource.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Source2 = _interopRequireDefault(__webpack_require__(/*! ./Source */ "./node_modules/itowns/lib/Source/Source.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ../Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

var _PotreeBinParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/PotreeBinParser */ "./node_modules/itowns/lib/Parser/PotreeBinParser.js"));

var _PotreeCinParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/PotreeCinParser */ "./node_modules/itowns/lib/Parser/PotreeCinParser.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @classdesc
 * PotreeSource are object containing informations on how to fetch points cloud resources.
 *
 *
 */
var PotreeSource = /*#__PURE__*/function (_Source) {
  (0, _inherits2["default"])(PotreeSource, _Source);

  var _super = _createSuper(PotreeSource);

  /**
   * @param {Object} source - An object that can contain all properties of a
   * PotreeSource
   * @param {string} source.url - folder url.
   * @param {string} source.file - cloud file name.
   *
   * This `cloud` file stores information about the potree cloud in JSON format. the structure is :
   *
   * * __`version`__ - The cloud.js format may change over time. The version number is
   * necessary so that parsers know how to interpret the data.
   * * __`octreeDir`__ - Directory or URL where node data is stored. Usually points to
   * "data".
   * * __`boundingBox`__ - Contains the minimum and maximum of the axis aligned bounding box. This bounding box is cubic and aligned to fit to the octree root.
   * * __`tightBoundingBox`__ - This bounding box thightly fits the point data.
   * * __`pointAttributes`__ - Declares the point data format. May be 'LAS', 'LAZ' or in case if the BINARY format an array of attributes like
   * `['POSITION_CARTESIAN', 'COLOR_PACKED', 'INTENSITY']`
   * * __`POSITION_CARTESIAN`__ - 3 x 32bit signed integers for x/y/z coordinates
   * * __`COLOR_PACKED`__ - 4 x unsigned byte for r,g,b,a colors.
   * * __`spacing`__ - The minimum distance between points at root level.
   * ```
   * {
   *     version: '1.6',
   *     octreeDir: 'data',
   *     boundingBox: {
   *         lx: -4.9854,
   *         ly: 1.0366,
   *         lz: -3.4494,
   *         ux: 0.702300000000001,
   *         uy: 6.7243,
   *         uz: 2.2383
   *     },
   *     tightBoundingBox: {
   *         lx: -4.9854,
   *         ly: 1.0375,
   *         lz: -3.4494,
   *         ux: -0.7889,
   *         uy: 6.7243,
   *         uz: 1.1245
   *     },
   *     pointAttributes: [
   *         'POSITION_CARTESIAN',
   *         'COLOR_PACKED'
   *     ],
   *     spacing: 0.03,
   *     scale: 0.001,
   *     hierarchyStepSize: 5
   * }
   * ```
   *
   * @extends Source
   *
   * @constructor
   */
  function PotreeSource(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, PotreeSource);

    if (!source.file) {
      throw new Error('New PotreeSource: file is required');
    }

    _this = _super.call(this, source);
    _this.file = source.file;
    _this.fetcher = _Fetcher["default"].arrayBuffer;
    _this.extensionOctree = 'hrc'; // For cloud specification visit:
    // https://github.com/PropellerAero/potree-propeller-private/blob/master/docs/file_format.md#cloudjs

    _this.whenReady = (source.cloud ? Promise.resolve(source.cloud) : _Fetcher["default"].json("".concat(_this.url, "/").concat(_this.file), _this.networkOptions)).then(function (cloud) {
      _this.pointAttributes = cloud.pointAttributes;
      _this.baseurl = "".concat(_this.url, "/").concat(cloud.octreeDir, "/r");
      _this.extension = cloud.pointAttributes === 'CIN' ? 'cin' : 'bin';
      _this.parse = _this.extension === 'cin' ? _PotreeCinParser["default"].parse : _PotreeBinParser["default"].parse;
      return cloud;
    });
    return _this;
  }

  return (0, _createClass2["default"])(PotreeSource);
}(_Source2["default"]);

var _default = PotreeSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/Source.js":
/*!**************************************************!*\
  !*** ./node_modules/itowns/lib/Source/Source.js ***!
  \**************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.supportedParsers = exports.supportedFetchers = exports["default"] = void 0;

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _Extent = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _GeoJsonParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/GeoJsonParser */ "./node_modules/itowns/lib/Parser/GeoJsonParser.js"));

var _KMLParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/KMLParser */ "./node_modules/itowns/lib/Parser/KMLParser.js"));

var _GDFParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/GDFParser */ "./node_modules/itowns/lib/Parser/GDFParser.js"));

var _GpxParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/GpxParser */ "./node_modules/itowns/lib/Parser/GpxParser.js"));

var _GTXParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/GTXParser */ "./node_modules/itowns/lib/Parser/GTXParser.js"));

var _ISGParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/ISGParser */ "./node_modules/itowns/lib/Parser/ISGParser.js"));

var _VectorTileParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/VectorTileParser */ "./node_modules/itowns/lib/Parser/VectorTileParser.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ../Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

var _Cache = _interopRequireDefault(__webpack_require__(/*! ../Core/Scheduler/Cache */ "./node_modules/itowns/lib/Core/Scheduler/Cache.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var supportedFetchers = new Map([['image/x-bil;bits=32', _Fetcher["default"].textureFloat], ['geojson', _Fetcher["default"].json], ['application/json', _Fetcher["default"].json], ['application/kml', _Fetcher["default"].xml], ['application/gpx', _Fetcher["default"].xml], ['application/x-protobuf;type=mapbox-vector', _Fetcher["default"].arrayBuffer], ['application/gtx', _Fetcher["default"].arrayBuffer], ['application/isg', _Fetcher["default"].text], ['application/gdf', _Fetcher["default"].text]]);
exports.supportedFetchers = supportedFetchers;
var supportedParsers = new Map([['geojson', _GeoJsonParser["default"].parse], ['application/json', _GeoJsonParser["default"].parse], ['application/kml', _KMLParser["default"].parse], ['application/gpx', _GpxParser["default"].parse], ['application/x-protobuf;type=mapbox-vector', _VectorTileParser["default"].parse], ['application/gtx', _GTXParser["default"].parse], ['application/isg', _ISGParser["default"].parse], ['application/gdf', _GDFParser["default"].parse]]);
exports.supportedParsers = supportedParsers;
var noCache = {
  getByArray: function getByArray() {},
  setByArray: function setByArray(a) {
    return a;
  },
  clear: function clear() {}
};
/**
 * @property {string} crs - data crs projection.
 * @property {boolean} isInverted - This option is to be set to the
 * correct value, true or false (default being false), if the computation of
 * the coordinates needs to be inverted to same scheme as OSM, Google Maps
 * or other system. See [this link]{@link
 * https://alastaira.wordpress.com/2011/07/06/converting-tms-tile-coordinates-to-googlebingosm-tile-coordinates}
 * for more informations.
 *
 */

var InformationsData = /*#__PURE__*/(0, _createClass2["default"])(function InformationsData(options) {
  (0, _classCallCheck2["default"])(this, InformationsData);

  /* istanbul ignore next */
  if (options.projection) {
    console.warn('Source projection parameter is deprecated, use crs instead.');
    options.crs = options.crs || options.projection;
  }

  this.crs = options.crs;
});
/**
 * This class describes parsing options.
 * @property {InformationsData|Source} in - data informations contained in the file.
 * @property {FeatureBuildingOptions|Layer} out - options indicates how the features should be built.
 */
// eslint-disable-next-line

var
/* istanbul ignore next */
ParsingOptions = /*#__PURE__*/(0, _createClass2["default"])(function ParsingOptions() {
  (0, _classCallCheck2["default"])(this, ParsingOptions);
});

function fetchSourceData(source, extent) {
  var url = source.urlFromExtent(extent);
  return source.fetcher(url, source.networkOptions).then(function (f) {
    f.extent = extent;
    return f;
  }, function (err) {
    return source.handlingError(err);
  });
}

var uid = 0;
/**
 * @classdesc
 * Sources are object containing informations on how to fetch resources, from a
 * set source.
 *
 * To extend a Source, it is necessary to implement two functions:
 * `urlFromExtent` and `extentInsideLimit`.
 *
 * @property {boolean} isSource - Used to checkout whether this source is a
 * Source. Default is true. You should not change this, as it is used internally
 * for optimisation.
 * @property {number} uid - Unique uid mainly used to store data linked to this
 * source into Cache.
 * @property {string} url - The url of the resources that are fetched.
 * @property {string} format - The format of the resources that are fetched.
 * @property {function} fetcher - The method used to fetch the resources from
 * the source. iTowns provides some methods in {@link Fetcher}, but it can be
 * specified a custom one. This method should return a `Promise` containing the
 * fetched resource. If this property is set, it overrides the chosen fetcher
 * method with `format`.
 * @property {Object} networkOptions - Fetch options (passed directly to
 * `fetch()`), see [the syntax for more information]{@link
 * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Syntax}.
 * By default, set to `{ crossOrigin: 'anonymous' }`.
 * @property {string} crs - The crs projection of the resources.
 * @property {string} attribution - The intellectual property rights for the
 * resources.
 * @property {Extent} extent - The extent of the resources.
 * @property {function} parser - The method used to parse the resources attached
 * to the layer. iTowns provides some parsers, visible in the `Parser/` folder.
 * If the method is custom, it should return a `Promise` containing the parsed
 * resource. If this property is set, it overrides the default selected parser
 * method with `source.format`. If `source.format` is also empty, no parsing
 * action is done.
 * <br><br>
 * When calling this method, two parameters are passed:
 * <ul>
 *  <li>the fetched data, i.e. the data to parse</li>
 *  <li>an {@link ParsingOptions}  containing severals properties, set when this method is
 *  called: it is specific to each call, so the value of each property can vary
 *  depending on the current fetched tile for example</li>
 * </ul>
 */

var Source = /*#__PURE__*/function (_InformationsData) {
  (0, _inherits2["default"])(Source, _InformationsData);

  var _super = _createSuper(Source);

  /**
   * @param {Object} source - An object that can contain all properties of a
   * Source. Only the `url` property is mandatory.
   *
   * @constructor
   * @extends InformationsData
   */
  function Source(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, Source);
    _this = _super.call(this, source);
    _this.isSource = true;

    if (!source.url) {
      throw new Error('New Source: url is required');
    }

    _this.uid = uid++;
    _this.url = source.url;
    _this.format = source.format;
    _this.fetcher = source.fetcher || supportedFetchers.get(source.format) || _Fetcher["default"].texture;

    _this.parser = source.parser || supportedParsers.get(source.format) || function (d) {
      return d;
    };

    _this.isVectorSource = (source.parser || supportedParsers.get(source.format)) != undefined;
    _this.networkOptions = source.networkOptions || {
      crossOrigin: 'anonymous'
    };
    _this.attribution = source.attribution;
    _this.whenReady = Promise.resolve();
    _this._featuresCaches = {};

    if (source.extent && !source.extent.isExtent) {
      _this.extent = new _Extent["default"](_this.crs, source.extent);
    } else {
      _this.extent = source.extent;
    }

    return _this;
  }

  (0, _createClass2["default"])(Source, [{
    key: "handlingError",
    value: function handlingError(err) {
      throw new Error(err);
    }
    /**
     * Generates an url from an extent. This url is a link to fetch the
     * resources inside the extent.
     *
     * @param {Extent} extent - Extent to convert in url.
      * @return {string} The URL constructed from the extent.
     */
    // eslint-disable-next-line

  }, {
    key: "urlFromExtent",
    value: function urlFromExtent() {
      throw new Error('In extended Source, you have to implement the method urlFromExtent!');
    }
  }, {
    key: "requestToKey",
    value: function requestToKey(extent) {
      return [extent.zoom, extent.row, extent.col];
    }
    /**
     * Load  data from cache or Fetch/Parse data.
     * The loaded data is a Feature or Texture.
     *
     * @param      {Extent}  extent   extent requested parsed data.
     * @param      {FeatureBuildingOptions|Layer}  out     The feature returned options
     * @return     {FeatureCollection|Texture}  The parsed data.
     */

  }, {
    key: "loadData",
    value: function loadData(extent, out) {
      var _this2 = this;

      var cache = this._featuresCaches[out.crs];
      var key = this.requestToKey(extent); // try to get parsed data from cache

      var features = cache.getByArray(key);

      if (!features) {
        // otherwise fetch/parse the data
        features = cache.setByArray(fetchSourceData(this, extent).then(function (file) {
          return _this2.parser(file, {
            out: out,
            "in": _this2
          });
        }, function (err) {
          return _this2.handlingError(err);
        }), key);
        /* istanbul ignore next */

        if (this.onParsedFile) {
          features.then(function (feat) {
            _this2.onParsedFile(feat);

            console.warn('Source.onParsedFile was deprecated');
            return feat;
          });
        }
      }

      return features;
    }
    /**
     * Called when layer added.
     *
     * @param {object} options
     */

  }, {
    key: "onLayerAdded",
    value: function onLayerAdded(options) {
      // Added new cache by crs
      if (!this._featuresCaches[options.out.crs]) {
        // Cache feature only if it's vector data, the feature are cached in source.
        // It's not necessary to cache raster in Source,
        // because it's already cached on layer.
        this._featuresCaches[options.out.crs] = this.isVectorSource ? new _Cache["default"]() : noCache;
      }
    }
    /**
     * Called when layer removed.
     *
     * @param {options}  [options={}] options
     */

  }, {
    key: "onLayerRemoved",
    value: function onLayerRemoved() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      // delete unused cache
      var unusedCache = this._featuresCaches[options.unusedCrs];

      if (unusedCache) {
        unusedCache.clear();
        delete this._featuresCaches[options.unusedCrs];
      }
    }
    /**
     * Tests if an extent is inside the source limits.
     *
     * @param {Extent} extent - Extent to test.
      * @return {boolean} True if the extent is inside the limit, false otherwise.
     */
    // eslint-disable-next-line

  }, {
    key: "extentInsideLimit",
    value: function extentInsideLimit() {
      throw new Error('In extented Source, you have to implement the method extentInsideLimit!');
    }
  }]);
  return Source;
}(InformationsData);

var _default = Source;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/TMSSource.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Source/TMSSource.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Source2 = _interopRequireDefault(__webpack_require__(/*! ./Source */ "./node_modules/itowns/lib/Source/Source.js"));

var _URLBuilder = _interopRequireDefault(__webpack_require__(/*! ../Provider/URLBuilder */ "./node_modules/itowns/lib/Provider/URLBuilder.js"));

var _Extent = _interopRequireWildcard(__webpack_require__(/*! ../Core/Geographic/Extent */ "./node_modules/itowns/lib/Core/Geographic/Extent.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var extent = new _Extent["default"](_Crs["default"].tms_4326, 0, 0, 0);
/**
 * @classdesc
 * An object defining the source of resources to get from a [TMS]{@link
 * https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification} server. It
 * inherits from {@link Source}.
 *
 * @extends Source
 *
 * @property {boolean} isTMSSource - Used to checkout whether this source is a
 * TMSSource. Default is true. You should not change this, as it is used
 * internally for optimisation.
 * @property {boolean} isInverted - The isInverted property is to be set to the
 * correct value, true or false (default being false) if the computation of the
 * coordinates needs to be inverted to match the same scheme as OSM, Google Maps
 * or other system. See [this link]{@link
 * https://alastaira.wordpress.com/2011/07/06/converting-tms-tile-coordinates-to-googlebingosm-tile-coordinates/}
 * for more information.
 * @property {Object} tileMatrixSetLimits - it describes the available tile for this layer
 * @property {Object} extentSetlimits - these are the extents of the set of identical zoom tiles.
 * @property {Object} zoom - Object containing the minimum and maximum values of
 * the level, to zoom in the source.
 * @property {number} zoom.min - The minimum level of the source. Default value
 * is 0.
 * @property {number} zoom.max - The maximum level of the source. Default value
 * is 20.
 * @property {function} tileMatrixCallback - a method that create a TileMatrix
 * identifier from the zoom level. For example, if set to `(zoomLevel) => 'EPSG:4326:' + zoomLevel`,
 * the TileMatrix that will be fetched at zoom level 5 will be the one with identifier `EPSG:4326:5`.
 * By default, the method returns the input zoom level.
 *
 * @example <caption><b>Source from OpenStreetMap server :</b></caption>
 * // Create the source
 * const tmsSource = new itowns.TMSSource({
 *     format: 'image/png',
 *     url: 'http://osm.io/styles/${z}/${x}/${y}.png',
 *     attribution: {
 *         name: 'OpenStreetMap',
 *         url: 'http://www.openstreetmap.org/',
 *     },
 *     crs: 'EPSG:3857',
 * });
 *
 * // Create the layer
 * const colorLayer = new itowns.ColorLayer('OPENSM', {
 *     source: tmsSource,
 * });
 *
 * // Add the layer
 * view.addLayer(colorLayer);
 *
 * @example <caption><b>Source from Mapbox server :</b></caption>
 * // Create the source
 * const orthoSource = new itowns.TMSSource({
 *     url: 'https://api.mapbox.com/v4/mapbox.satellite/${z}/${x}/${y}.jpg?access_token=' + accessToken,
 *     crs: 'EPSG:3857',
 * };
 *
 * // Create the layer
 * const imageryLayer = new itowns.ColorLayer("Ortho", {
 *     source: orthoSource,
 * };
 *
 * // Add the layer to the view
 * view.addLayer(imageryLayer);
 */

var TMSSource = /*#__PURE__*/function (_Source) {
  (0, _inherits2["default"])(TMSSource, _Source);

  var _super = _createSuper(TMSSource);

  /**
   * @param {Object} source - An object that can contain all properties of a
   * TMSSource and {@link Source}. Only `url` is mandatory.
   *
   * @constructor
   */
  function TMSSource(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, TMSSource);

    if (!source.crs && !source.projection) {
      throw new Error('New TMSSource/WMTSSource: crs projection is required');
    }

    source.format = source.format || 'image/png';
    _this = _super.call(this, source);
    _this.isTMSSource = true;

    if (!source.extent) {
      // default to the global extent
      _this.extent = _Extent.globalExtentTMS.get(source.crs);
    }

    _this.zoom = source.zoom;
    _this.isInverted = source.isInverted || false;
    _this.url = source.url;
    _this.crs = _Crs["default"].formatToTms(source.crs);
    _this.tileMatrixSetLimits = source.tileMatrixSetLimits;
    _this.extentSetlimits = {};

    _this.tileMatrixCallback = source.tileMatrixCallback || function (zoomLevel) {
      return zoomLevel;
    };

    if (!_this.zoom) {
      if (_this.tileMatrixSetLimits) {
        var arrayLimits = Object.keys(_this.tileMatrixSetLimits);
        var size = arrayLimits.length;
        var maxZoom = Number(arrayLimits[size - 1]);
        _this.zoom = {
          min: maxZoom - size + 1,
          max: maxZoom
        };
      } else {
        _this.zoom = {
          min: 0,
          max: Infinity
        };
      }
    }

    return _this;
  }

  (0, _createClass2["default"])(TMSSource, [{
    key: "urlFromExtent",
    value: function urlFromExtent(extent) {
      return _URLBuilder["default"].xyz(extent, this);
    }
  }, {
    key: "onLayerAdded",
    value: function onLayerAdded(options) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(TMSSource.prototype), "onLayerAdded", this).call(this, options); // Build extents of the set of identical zoom tiles.

      var parent = options.out.parent; // The extents crs is chosen to facilitate in raster tile process.

      var crs = parent ? parent.extent.crs : options.out.crs;

      if (this.tileMatrixSetLimits && !this.extentSetlimits[crs]) {
        this.extentSetlimits[crs] = {};
        extent.crs = this.crs;

        for (var i = this.zoom.max; i >= this.zoom.min; i--) {
          var tmsl = this.tileMatrixSetLimits[i];

          var _extent$set$as = extent.set(i, tmsl.minTileRow, tmsl.minTileCol).as(crs),
              west = _extent$set$as.west,
              north = _extent$set$as.north;

          var _extent$set$as2 = extent.set(i, tmsl.maxTileRow, tmsl.maxTileCol).as(crs),
              east = _extent$set$as2.east,
              south = _extent$set$as2.south;

          this.extentSetlimits[crs][i] = new _Extent["default"](crs, west, east, south, north);
        }
      }
    }
  }, {
    key: "extentInsideLimit",
    value: function extentInsideLimit(extent, zoom) {
      // This layer provides data starting at level = layer.source.zoom.min
      // (the zoom.max property is used when building the url to make
      //  sure we don't use invalid levels)
      return zoom >= this.zoom.min && zoom <= this.zoom.max && (this.extentSetlimits[extent.crs] == undefined || this.extentSetlimits[extent.crs][zoom].intersectsExtent(extent));
    }
  }]);
  return TMSSource;
}(_Source2["default"]);

var _default = TMSSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/VectorTilesSource.js":
/*!*************************************************************!*\
  !*** ./node_modules/itowns/lib/Source/VectorTilesSource.js ***!
  \*************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _mapboxGlStyleSpec = __webpack_require__(/*! @mapbox/mapbox-gl-style-spec */ "./node_modules/@mapbox/mapbox-gl-style-spec/dist/index.cjs");

var _Style = _interopRequireDefault(__webpack_require__(/*! ../Core/Style */ "./node_modules/itowns/lib/Core/Style.js"));

var _TMSSource2 = _interopRequireDefault(__webpack_require__(/*! ./TMSSource */ "./node_modules/itowns/lib/Source/TMSSource.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ../Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

var _MapBoxUrlParser = _interopRequireDefault(__webpack_require__(/*! ../Parser/MapBoxUrlParser */ "./node_modules/itowns/lib/Parser/MapBoxUrlParser.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function toTMSUrl(url) {
  return url.replace(/\{/g, '${');
}
/**
 * @classdesc
 * VectorTilesSource are object containing informations on how to fetch vector
 * tiles resources.
 *
 * @property {function} filter - function to filter vector tiles layers, the
 * parameter function is a layer.
 * @property {boolean} [symbolToCircle=false] - If true, all symbols from a tile
 * will be considered as circle, and render as circles.
 */


var VectorTilesSource = /*#__PURE__*/function (_TMSSource) {
  (0, _inherits2["default"])(VectorTilesSource, _TMSSource);

  var _super = _createSuper(VectorTilesSource);

  /**
   * @param {Object} source - An object that can contain all properties of a
   * VectorTilesSource and {@link Source}.
   * @param {string|Object} source.style - The URL of the JSON style, of the
   * JSON style directly.
   * @param {string} [source.sprite] - The base URL to load informations about
   * the sprite of the style. If this is set, it overrides the `sprite` value
   * of the `source.style`. A style's sprite property supplies a URL template
   * for loading small images.
   * ```js
   * {
   *      sprite: 'http//:xxxxx/maps/sprites/'
   * }
   * ```
   * A valid sprite source must supply two types of files:
   * * An index file, which is a JSON document containing a description of each image contained in the sprite.
   * * Image files, which are PNG images containing the sprite data.
   *
   * For more specification : [the Mapbox sprite Specification](https://docs.mapbox.com/mapbox-gl-js/style-spec/sprite/)
   *
   * @param {string} [source.url] - The base URL to load the tiles. If no url
   * is specified, it reads it from the loaded style. Read [the Mapbox Style
   * Specification](https://docs.mapbox.com/mapbox-gl-js/style-spec/sources/)
   * for more informations.
   * @param {string} [source.accessToken] - Mapbox access token
   * @constructor
   */
  function VectorTilesSource(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, VectorTilesSource);
    source.format = 'application/x-protobuf;type=mapbox-vector';
    source.crs = 'EPSG:3857';
    source.isInverted = true;
    source.url = source.url || '.';
    _this = _super.call(this, source);

    var ffilter = source.filter || function () {
      return true;
    };

    _this.layers = {};
    _this.styles = {};
    var promise;
    _this.accessToken = source.accessToken;

    if (source.style) {
      if (typeof source.style == 'string') {
        var styleUrl = _MapBoxUrlParser["default"].normalizeStyleURL(source.style, _this.accessToken);

        promise = _Fetcher["default"].json(styleUrl, _this.networkOptions);
      } else {
        promise = Promise.resolve(source.style);
      }
    } else {
      throw new Error('New VectorTilesSource: style is required');
    }

    _this.whenReady = promise.then(function (style) {
      _this.jsonStyle = style;
      var baseurl = source.sprite || style.sprite;

      if (baseurl) {
        var spriteUrl = _MapBoxUrlParser["default"].normalizeSpriteURL(baseurl, '', '.json', _this.accessToken);

        return _Fetcher["default"].json(spriteUrl, _this.networkOptions).then(function (sprites) {
          _this.sprites = sprites;

          var imgUrl = _MapBoxUrlParser["default"].normalizeSpriteURL(baseurl, '', '.png', _this.accessToken);

          return _Fetcher["default"].texture(imgUrl, _this.networkOptions).then(function (texture) {
            _this.sprites.img = texture.image;
            return style;
          });
        });
      }

      return style;
    }).then(function (style) {
      var s = Object.keys(style.sources)[0];
      var os = style.sources[s];
      style.layers.forEach(function (layer, order) {
        layer.sourceUid = _this.uid;

        if (layer.type === 'background') {
          _this.backgroundLayer = layer;
        } else if (ffilter(layer)) {
          var _style = new _Style["default"]().setFromVectorTileLayer(layer, _this.sprites, order, _this.symbolToCircle);

          _style.zoom.min = layer.minzoom || 0;
          _style.zoom.max = layer.maxzoom || 24;
          _this.styles[layer.id] = _style;

          if (!_this.layers[layer['source-layer']]) {
            _this.layers[layer['source-layer']] = [];
          }

          _this.layers[layer['source-layer']].push({
            id: layer.id,
            order: order,
            filterExpression: (0, _mapboxGlStyleSpec.featureFilter)(layer.filter),
            zoom: _style.zoom
          });
        }
      });

      if (_this.url == '.') {
        if (os.url) {
          var urlSource = _MapBoxUrlParser["default"].normalizeSourceURL(os.url, _this.accessToken);

          return _Fetcher["default"].json(urlSource, _this.networkOptions).then(function (tileJSON) {
            if (tileJSON.tiles[0]) {
              _this.url = toTMSUrl(tileJSON.tiles[0]);
            }
          });
        } else if (os.tiles[0]) {
          _this.url = toTMSUrl(os.tiles[0]);
        }
      }
    });
    return _this;
  }

  (0, _createClass2["default"])(VectorTilesSource, [{
    key: "onLayerAdded",
    value: function onLayerAdded(options) {
      var _this2 = this;

      (0, _get2["default"])((0, _getPrototypeOf2["default"])(VectorTilesSource.prototype), "onLayerAdded", this).call(this, options);

      if (options.out.style) {
        if (options.out.isFeatureGeometryLayer && options.out.accurate) {
          console.warn('With VectorTilesSource and FeatureGeometryLayer, the accurate option is always false');
          options.out.accurate = false;
        }

        var keys = Object.keys(this.styles);
        keys.forEach(function (k) {
          _this2.styles[k].parent = options.out.style;
        });
      }
    }
  }]);
  return VectorTilesSource;
}(_TMSSource2["default"]);

var _default = VectorTilesSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/WFSSource.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Source/WFSSource.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Source2 = _interopRequireDefault(__webpack_require__(/*! ./Source */ "./node_modules/itowns/lib/Source/Source.js"));

var _URLBuilder = _interopRequireDefault(__webpack_require__(/*! ../Provider/URLBuilder */ "./node_modules/itowns/lib/Provider/URLBuilder.js"));

var _Crs = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Crs */ "./node_modules/itowns/lib/Core/Geographic/Crs.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @classdesc
 * An object defining the source of resources to get from a
 * [WFS]{@link http://www.opengeospatial.org/standards/wfs} server. It inherits
 * from {@link Source}.
 *
 * @extends Source
 *
 * @property {boolean} isWFSSource - Used to checkout whether this source is a
 * WFSSource. Default is true. You should not change this, as it is used
 * internally for optimisation.
 * @property {string} typeName - The name of the feature to get, used in the
 * generation of the url.
 * @property {string} version - The version of the WFS server to request on.
 * Default value is '2.0.2'.
 * @property {Object} zoom - Object containing the minimum and maximum values of
 * the level, to zoom in the source.
 * @property {number} zoom.min - The minimum level of the source. Default value
 * is 0.
 * @property {number} zoom.max - The maximum level of the source. Default value
 * is 21.
 * @property {Object} vendorSpecific - An object containing vendor specific
 * parameters. See for example a [list of these parameters for GeoServer]{@link
 * https://docs.geoserver.org/latest/en/user/services/wfs/vendor.html}. This
 * object is read simply with the `key` being the name of the parameter and
 * `value` being the value of the parameter. If used, this property should be
 * set in the constructor parameters.
 *
 * @example
 * // Add color layer with WFS source
 * // Create the source
 * const wfsSource = new itowns.WFSSource({
 *     url: 'http://wxs.fr/wfs',
 *     version: '2.0.0',
 *     typeName: 'BDTOPO_BDD_WLD_WGS84G:bati_remarquable',
 *     crs: 'EPSG:4326',
 *     extent: {
 *         west: 4.568,
 *         east: 5.18,
 *         south: 45.437,
 *         north: 46.03,
 *     },
 *     zoom: { min: 14, max: 14 },
 *     format: 'application/json',
 * });
 *
 * // Create the layer
 * const colorlayer = new itowns.ColorLayer('color_build', {
 *     style: {
 *         fill: 'red',
 *         fillOpacity: 0.5,
 *         stroke: 'white',
 *     },
 *     source: wfsSource,
 * });
 *
 * // Add the layer
 * view.addLayer(colorlayer);
 *
 * @example
 * // Add geometry layer with WFS source
 * // Create the source
 * const wfsSource = new itowns.WFSSource({
 *     url: 'http://wxs.fr/wfs',
 *     version: '2.0.0',
 *     typeName: 'BDTOPO_BDD_WLD_WGS84G:bati_remarquable',
 *     crs: 'EPSG:4326',
 *     extent: {
 *         west: 4.568,
 *         east: 5.18,
 *         south: 45.437,
 *         north: 46.03,
 *     },
 *     zoom: { min: 14, max: 14 },
 *     format: 'application/json',
 * });
 *
 * // Create the layer
 * const geometryLayer = new itowns.FeatureGeometryLayer('mesh_build', {
 *     style: new itowns.Style({
 *         fill: {
 *             color: new itowns.THREE.Color(0xffcc00),
 *             base_altitude: (p) => p.altitude,
 *             extrusion_height: (p) => p.height,
 *         }
 *     },
 *     source: wfsSource,
 *     zoom: { min: 14 },
 * });
 *
 * // Add the layer
 * view.addLayer(geometryLayer);
 */
var WFSSource = /*#__PURE__*/function (_Source) {
  (0, _inherits2["default"])(WFSSource, _Source);

  var _super = _createSuper(WFSSource);

  /**
   * @param {Object} source - An object that can contain all properties of a
   * WFSSource and {@link Source}. `url`, `typeName` and `crs` are
   * mandatory.
   *
   * @constructor
   */
  function WFSSource(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, WFSSource);

    if (source.projection) {
      console.warn('WFSSource projection parameter is deprecated, use crs instead.');
      source.crs = source.crs || source.projection;
    }

    if (!source.typeName) {
      throw new Error('source.typeName is required in wfs source.');
    }

    if (!source.crs) {
      throw new Error('source.crs is required in wfs source');
    }

    source.format = source.format || 'application/json';
    _this = _super.call(this, source);
    _this.isWFSSource = true;
    _this.typeName = source.typeName;
    _this.version = source.version || '2.0.2';
    _this.url = "".concat(source.url, "SERVICE=WFS&REQUEST=GetFeature&typeName=").concat(_this.typeName, "&VERSION=").concat(_this.version, "&SRSNAME=").concat(_this.crs, "&outputFormat=").concat(_this.format, "&BBOX=%bbox,").concat(_this.crs);
    _this.zoom = {
      min: 0,
      max: Infinity
    };
    _this.vendorSpecific = source.vendorSpecific;

    for (var name in _this.vendorSpecific) {
      if (Object.prototype.hasOwnProperty.call(_this.vendorSpecific, name)) {
        _this.url = "".concat(_this.url, "&").concat(name, "=").concat(_this.vendorSpecific[name]);
      }
    }

    return _this;
  }

  (0, _createClass2["default"])(WFSSource, [{
    key: "handlingError",
    value: function handlingError(err) {
      var _this2 = this;

      if (err.response && err.response.status == 400) {
        return err.response.text().then(function (text) {
          var getCapUrl = "".concat(_this2.url, "SERVICE=WFS&REQUEST=GetCapabilities&VERSION=").concat(_this2.version);
          var xml = new DOMParser().parseFromString(text, 'application/xml');
          var errorElem = xml.querySelector('Exception');
          var errorCode = errorElem.getAttribute('exceptionCode');
          var errorMessage = errorElem.querySelector('ExceptionText').textContent;
          console.error("Source ".concat(_this2.typeName, ": bad request when fetching data. Server says: \"").concat(errorCode, ": ").concat(errorMessage, "\". \nReviewing ").concat(getCapUrl, " may help."), err);
        });
      }

      return (0, _get2["default"])((0, _getPrototypeOf2["default"])(WFSSource.prototype), "handlingError", this).call(this, err);
    }
  }, {
    key: "requestToKey",
    value: function requestToKey(extent) {
      if (_Crs["default"].isTms(extent.crs)) {
        return (0, _get2["default"])((0, _getPrototypeOf2["default"])(WFSSource.prototype), "requestToKey", this).call(this, extent);
      } else {
        return [extent.zoom, extent.south, extent.west];
      }
    }
  }, {
    key: "urlFromExtent",
    value: function urlFromExtent(extent) {
      return _URLBuilder["default"].bbox(extent, this);
    }
  }, {
    key: "extentInsideLimit",
    value: function extentInsideLimit(extent) {
      return this.extent.intersectsExtent(extent);
    }
  }]);
  return WFSSource;
}(_Source2["default"]);

var _default = WFSSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/WMSSource.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Source/WMSSource.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Source2 = _interopRequireDefault(__webpack_require__(/*! ./Source */ "./node_modules/itowns/lib/Source/Source.js"));

var _URLBuilder = _interopRequireDefault(__webpack_require__(/*! ../Provider/URLBuilder */ "./node_modules/itowns/lib/Provider/URLBuilder.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @classdesc
 * An object defining the source of images to get from a
 * [WMS]{@link http://www.opengeospatial.org/standards/wms} server. It inherits
 * from {@link Source}.
 *
 * @extends Source
 *
 * @property {boolean} isWMSSource - Used to checkout whether this source is a
 * WMSSource. Default is true. You should not change this, as it is used
 * internally for optimisation.
 * @property {string} name - The name of the layer, used in the generation of
 * the url.
 * @property {string} version - The version of the WMS server to request on.
 * Default value is '1.3.0'.
 * @property {string} style - The style to query on the WMS server. Default
 * value is 'normal'.
 * @property {number} width - The width of the image to fetch, in pixel.
 * Default value is the height if set or 256.
 * @property {number} height - The height of the image to fetch, in pixel.
 * Default value is the width if set or 256.
 * @property {string} axisOrder - The order of the axis, that helps building the
 * BBOX to put in the url requesting a resource. Default value is 'wsen', other
 * value can be 'swne'.
 * @property {boolean} transparent - Tells if the image to fetch needs
 * transparency support. Default value is false.
 * @property {Object} zoom - Object containing the minimum and maximum values of
 * the level, to zoom in the source.
 * @property {number} zoom.min - The minimum level of the source. Default value
 * is 0.
 * @property {number} zoom.max - The maximum level of the source. Default value
 * is 21.
 * @property {Object} vendorSpecific - An object containing vendor specific
 * parameters. See for example a [list of these parameters for GeoServer]{@link
 * https://docs.geoserver.org/latest/en/user/services/wms/vendor.html}. This
 * object is read simply with the `key` being the name of the parameter and
 * `value` being the value of the parameter. If used, this property should be
 * set in the constructor parameters.
 *
 * @example
 * // Create the source
 * const wmsSource = new itowns.WMSSource({
 *     url: 'https://server.geo/wms',
 *     version: '1.3.0',
 *     name: 'REGION.2016',
 *     style: '',
 *     crs: 'EPSG:3857',
 *     extent: {
 *         west: '-6880639.13557728',
 *         east: '6215707.87974825',
 *         south: '-2438399.00148845',
 *         north: '7637050.03850605',
 *     },
 *     transparent: true,
 * });
 *
 * // Create the layer
 * const colorlayer = new itowns.ColorLayer('Region', {
 *     source: wmsSource,
 * });
 *
 * // Add the layer
 * view.addLayer(colorlayer);
 */
var WMSSource = /*#__PURE__*/function (_Source) {
  (0, _inherits2["default"])(WMSSource, _Source);

  var _super = _createSuper(WMSSource);

  /**
   * @param {Object} source - An object that can contain all properties of
   * WMSSource and {@link Source}. `url`, `name`, `extent` and `crs`
   * are mandatory.
   *
   * @constructor
   */
  function WMSSource(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, WMSSource);

    if (!source.name) {
      throw new Error('source.name is required.');
    }

    if (!source.extent) {
      throw new Error('source.extent is required');
    }

    if (!source.crs && !source.projection) {
      throw new Error('source.crs is required');
    }

    source.format = source.format || 'image/png';
    _this = _super.call(this, source);
    _this.isWMSSource = true;
    _this.name = source.name;
    _this.zoom = {
      min: 0,
      max: Infinity
    };
    _this.style = source.style || '';
    _this.width = source.width || source.height || 256;
    _this.height = source.height || source.width || 256;
    _this.version = source.version || '1.3.0';
    _this.transparent = source.transparent || false;

    if (!source.axisOrder) {
      // 4326 (lat/long) axis order depends on the WMS version used
      if (_this.crs == 'EPSG:4326') {
        // EPSG 4326 x = lat, long = y
        // version 1.1.0 long/lat while version 1.3.0 mandates xy (so lat,long)
        _this.axisOrder = _this.version === '1.1.0' ? 'wsen' : 'swne';
      } else {
        // xy,xy order
        _this.axisOrder = 'wsen';
      }
    }

    var crsPropName = _this.version === '1.3.0' ? 'CRS' : 'SRS';
    _this.url = "".concat(source.url, "?SERVICE=WMS&REQUEST=GetMap&LAYERS=").concat(_this.name, "&VERSION=").concat(_this.version, "&STYLES=").concat(_this.style, "&FORMAT=").concat(_this.format, "&TRANSPARENT=").concat(_this.transparent, "&BBOX=%bbox&").concat(crsPropName, "=").concat(_this.crs, "&WIDTH=").concat(_this.width, "&HEIGHT=").concat(_this.height);
    _this.vendorSpecific = source.vendorSpecific;

    for (var name in _this.vendorSpecific) {
      if (Object.prototype.hasOwnProperty.call(_this.vendorSpecific, name)) {
        _this.url = "".concat(_this.url, "&").concat(name, "=").concat(_this.vendorSpecific[name]);
      }
    }

    return _this;
  }

  (0, _createClass2["default"])(WMSSource, [{
    key: "urlFromExtent",
    value: function urlFromExtent(extent) {
      return _URLBuilder["default"].bbox(extent, this);
    }
  }, {
    key: "extentInsideLimit",
    value: function extentInsideLimit(extent) {
      return this.extent.intersectsExtent(extent);
    }
  }]);
  return WMSSource;
}(_Source2["default"]);

var _default = WMSSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Source/WMTSSource.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Source/WMTSSource.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _TMSSource2 = _interopRequireDefault(__webpack_require__(/*! ./TMSSource */ "./node_modules/itowns/lib/Source/TMSSource.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

/**
 * @classdesc
 * An object defining the source of resources to get from a
 * [WMTS]{@link http://www.opengeospatial.org/standards/wmts} server. It inherits
 * from {@link Source}.
 *
 * @extends Source
 *
 * @property {boolean} isWMTSSource - Used to checkout whether this source is a
 * WMTSSource. Default is true. You should not change this, as it is used
 * internally for optimisation.
 * @property {string} name - The name of the layer, used in the generation of
 * the url.
 * @property {string} version - The version of the WMTS server to request on.
 * Default value is '1.0.0'.
 * @property {string} style - The style to query on the WMTS server. Default
 * value is 'normal'.
 * @property {string} crs - The crs projection in which to fetch the data.
 * @property {string} tileMatrixSet - Tile matrix set of the layer, used in the
 * generation of the url. Default value is 'WGS84'.
 * @property {Object} tileMatrixSetLimits - Limits of the tile matrix set. Each
 * limit has for key its level number, and their properties are the
 * `minTileRow`, `maxTileRow`, `minTileCol` and `maxTileCol`.
 * @property {number} tileMatrixSetLimits.minTileRow - Minimum row for tiles at
 * the specified level.
 * @property {number} tileMatrixSetLimits.maxTileRow - Maximum row for tiles at
 * the specified level.
 * @property {number} tileMatrixSetLimits.minTileCol - Minimum column for tiles
 * at the specified level.
 * @property {number} tileMatrixSetLimits.maxTileCol - Maximum column for tiles
 * at the specified level.
 * @property {Object} zoom - Object containing the minimum and maximum values of
 * the level, to zoom in the source.
 * @property {number} zoom.min - The minimum level of the source. Default value
 * is 2.
 * @property {number} zoom.max - The maximum level of the source. Default value
 * is 20.
 *
 * @example
 * // Create the source
 * const wmtsSource = new itowns.WMTSSource({
 *     name: 'DARK',
 *     tileMatrixSet: 'PM',
 *     url: 'http://server.geo/wmts',
 *     format: 'image/jpg',
 * });
 *
 * // Create the layer
 * const colorLayer = new itowns.ColorLayer('darkmap', {
 *     source: wmtsSource,
 * });
 *
 * // Add the layer
 * view.addLayer(colorLayer);
 */
var WMTSSource = /*#__PURE__*/function (_TMSSource) {
  (0, _inherits2["default"])(WMTSSource, _TMSSource);

  var _super = _createSuper(WMTSSource);

  /**
   * @param {Object} source - An object that can contain all properties of a
   * WMTSSource and {@link Source}. Only `url`, `name` and `crs` are mandatory.
   *
   * @constructor
   */
  function WMTSSource(source) {
    var _this;

    (0, _classCallCheck2["default"])(this, WMTSSource);

    if (!source.name) {
      throw new Error('New WMTSSource: name is required');
    }

    _this = _super.call(this, source);
    _this.isWMTSSource = true;
    _this.url = "".concat(_this.url) + "?LAYER=".concat(source.name) + "&FORMAT=".concat(_this.format) + '&SERVICE=WMTS' + "&VERSION=".concat(source.version || '1.0.0') + '&REQUEST=GetTile' + "&STYLE=".concat(source.style || 'normal') + "&TILEMATRIXSET=".concat(source.tileMatrixSet) + '&TILEMATRIX=%TILEMATRIX&TILEROW=%ROW&TILECOL=%COL';
    return _this;
  }

  return (0, _createClass2["default"])(WMTSSource);
}(_TMSSource2["default"]);

var _default = WMTSSource;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/ThreeExtended/capabilities/WebGL.js":
/*!*********************************************************************!*\
  !*** ./node_modules/itowns/lib/ThreeExtended/capabilities/WebGL.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var WebGL = /*#__PURE__*/function () {
  function WebGL() {
    (0, _classCallCheck2["default"])(this, WebGL);
  }

  (0, _createClass2["default"])(WebGL, null, [{
    key: "isWebGLAvailable",
    value: function isWebGLAvailable() {
      try {
        var canvas = document.createElement('canvas');
        return !!(window.WebGLRenderingContext && (canvas.getContext('webgl') || canvas.getContext('experimental-webgl')));
      } catch (e) {
        return false;
      }
    }
  }, {
    key: "isWebGL2Available",
    value: function isWebGL2Available() {
      try {
        var canvas = document.createElement('canvas');
        return !!(window.WebGL2RenderingContext && canvas.getContext('webgl2'));
      } catch (e) {
        return false;
      }
    }
  }, {
    key: "getWebGLErrorMessage",
    value: function getWebGLErrorMessage() {
      return this.getErrorMessage(1);
    }
  }, {
    key: "getWebGL2ErrorMessage",
    value: function getWebGL2ErrorMessage() {
      return this.getErrorMessage(2);
    }
  }, {
    key: "getErrorMessage",
    value: function getErrorMessage(version) {
      var contexts = {
        1: window.WebGLRenderingContext,
        2: window.WebGL2RenderingContext
      };
      var message = 'Your $0 does not seem to support <a href="http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation" style="color:#000">$1</a>';
      var element = document.createElement('div');
      element.id = 'webglmessage';
      element.style.fontFamily = 'monospace';
      element.style.fontSize = '13px';
      element.style.fontWeight = 'normal';
      element.style.textAlign = 'center';
      element.style.background = '#fff';
      element.style.color = '#000';
      element.style.padding = '1.5em';
      element.style.width = '400px';
      element.style.margin = '5em auto 0';

      if (contexts[version]) {
        message = message.replace('$0', 'graphics card');
      } else {
        message = message.replace('$0', 'browser');
      }

      message = message.replace('$1', {
        1: 'WebGL',
        2: 'WebGL 2'
      }[version]);
      element.innerHTML = message;
      return element;
    }
  }]);
  return WebGL;
}();

var _default = WebGL;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/ThreeExtended/loaders/DRACOLoader.js":
/*!**********************************************************************!*\
  !*** ./node_modules/itowns/lib/ThreeExtended/loaders/DRACOLoader.js ***!
  \**********************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.DRACOLoader = void 0;

var _typeof2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _three = __webpack_require__(/*! three */ "./node_modules/three/build/three.cjs");

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var _taskCache = new WeakMap();

var DRACOLoader = /*#__PURE__*/function (_Loader) {
  (0, _inherits2["default"])(DRACOLoader, _Loader);

  var _super = _createSuper(DRACOLoader);

  function DRACOLoader(manager) {
    var _this;

    (0, _classCallCheck2["default"])(this, DRACOLoader);
    _this = _super.call(this, manager);
    _this.decoderPath = '';
    _this.decoderConfig = {};
    _this.decoderBinary = null;
    _this.decoderPending = null;
    _this.workerLimit = 4;
    _this.workerPool = [];
    _this.workerNextTaskID = 1;
    _this.workerSourceURL = '';
    _this.defaultAttributeIDs = {
      position: 'POSITION',
      normal: 'NORMAL',
      color: 'COLOR',
      uv: 'TEX_COORD'
    };
    _this.defaultAttributeTypes = {
      position: 'Float32Array',
      normal: 'Float32Array',
      color: 'Float32Array',
      uv: 'Float32Array'
    };
    return _this;
  }

  (0, _createClass2["default"])(DRACOLoader, [{
    key: "setDecoderPath",
    value: function setDecoderPath(path) {
      this.decoderPath = path;
      return this;
    }
  }, {
    key: "setDecoderConfig",
    value: function setDecoderConfig(config) {
      this.decoderConfig = config;
      return this;
    }
  }, {
    key: "setWorkerLimit",
    value: function setWorkerLimit(workerLimit) {
      this.workerLimit = workerLimit;
      return this;
    }
  }, {
    key: "load",
    value: function load(url, onLoad, onProgress, onError) {
      var _this2 = this;

      var loader = new _three.FileLoader(this.manager);
      loader.setPath(this.path);
      loader.setResponseType('arraybuffer');
      loader.setRequestHeader(this.requestHeader);
      loader.setWithCredentials(this.withCredentials);
      loader.load(url, function (buffer) {
        var taskConfig = {
          attributeIDs: _this2.defaultAttributeIDs,
          attributeTypes: _this2.defaultAttributeTypes,
          useUniqueIDs: false
        };

        _this2.decodeGeometry(buffer, taskConfig).then(onLoad)["catch"](onError);
      }, onProgress, onError);
    }
    /** @deprecated Kept for backward-compatibility with previous DRACOLoader versions. */

  }, {
    key: "decodeDracoFile",
    value: function decodeDracoFile(buffer, callback, attributeIDs, attributeTypes) {
      var taskConfig = {
        attributeIDs: attributeIDs || this.defaultAttributeIDs,
        attributeTypes: attributeTypes || this.defaultAttributeTypes,
        useUniqueIDs: !!attributeIDs
      };
      this.decodeGeometry(buffer, taskConfig).then(callback);
    }
  }, {
    key: "decodeGeometry",
    value: function decodeGeometry(buffer, taskConfig) {
      var _this3 = this;

      // TODO: For backward-compatibility, support 'attributeTypes' objects containing
      // references (rather than names) to typed array constructors. These must be
      // serialized before sending them to the worker.
      for (var attribute in taskConfig.attributeTypes) {
        var type = taskConfig.attributeTypes[attribute];

        if (type.BYTES_PER_ELEMENT !== undefined) {
          taskConfig.attributeTypes[attribute] = type.name;
        }
      } //


      var taskKey = JSON.stringify(taskConfig); // Check for an existing task using this buffer. A transferred buffer cannot be transferred
      // again from this thread.

      if (_taskCache.has(buffer)) {
        var cachedTask = _taskCache.get(buffer);

        if (cachedTask.key === taskKey) {
          return cachedTask.promise;
        } else if (buffer.byteLength === 0) {
          // Technically, it would be possible to wait for the previous task to complete,
          // transfer the buffer back, and decode again with the second configuration. That
          // is complex, and I don't know of any reason to decode a Draco buffer twice in
          // different ways, so this is left unimplemented.
          throw new Error('THREE.DRACOLoader: Unable to re-decode a buffer with different ' + 'settings. Buffer has already been transferred.');
        }
      } //


      var worker;
      var taskID = this.workerNextTaskID++;
      var taskCost = buffer.byteLength; // Obtain a worker and assign a task, and construct a geometry instance
      // when the task completes.

      var geometryPending = this._getWorker(taskID, taskCost).then(function (_worker) {
        worker = _worker;
        return new Promise(function (resolve, reject) {
          worker._callbacks[taskID] = {
            resolve: resolve,
            reject: reject
          };
          worker.postMessage({
            type: 'decode',
            id: taskID,
            taskConfig: taskConfig,
            buffer: buffer
          }, [buffer]); // this.debug();
        });
      }).then(function (message) {
        return _this3._createGeometry(message.geometry);
      }); // Remove task from the task list.
      // Note: replaced '.finally()' with '.catch().then()' block - iOS 11 support (#19416)


      geometryPending["catch"](function () {
        return true;
      }).then(function () {
        if (worker && taskID) {
          _this3._releaseTask(worker, taskID); // this.debug();

        }
      }); // Cache the task result.

      _taskCache.set(buffer, {
        key: taskKey,
        promise: geometryPending
      });

      return geometryPending;
    }
  }, {
    key: "_createGeometry",
    value: function _createGeometry(geometryData) {
      var geometry = new _three.BufferGeometry();

      if (geometryData.index) {
        geometry.setIndex(new _three.BufferAttribute(geometryData.index.array, 1));
      }

      for (var i = 0; i < geometryData.attributes.length; i++) {
        var attribute = geometryData.attributes[i];
        var name = attribute.name;
        var array = attribute.array;
        var itemSize = attribute.itemSize;
        geometry.setAttribute(name, new _three.BufferAttribute(array, itemSize));
      }

      return geometry;
    }
  }, {
    key: "_loadLibrary",
    value: function _loadLibrary(url, responseType) {
      var loader = new _three.FileLoader(this.manager);
      loader.setPath(this.decoderPath);
      loader.setResponseType(responseType);
      loader.setWithCredentials(this.withCredentials);
      return new Promise(function (resolve, reject) {
        loader.load(url, resolve, undefined, reject);
      });
    }
  }, {
    key: "preload",
    value: function preload() {
      this._initDecoder();

      return this;
    }
  }, {
    key: "_initDecoder",
    value: function _initDecoder() {
      var _this4 = this;

      if (this.decoderPending) return this.decoderPending;
      var useJS = (typeof WebAssembly === "undefined" ? "undefined" : (0, _typeof2["default"])(WebAssembly)) !== 'object' || this.decoderConfig.type === 'js';
      var librariesPending = [];

      if (useJS) {
        librariesPending.push(this._loadLibrary('draco_decoder.js', 'text'));
      } else {
        librariesPending.push(this._loadLibrary('draco_wasm_wrapper.js', 'text'));
        librariesPending.push(this._loadLibrary('draco_decoder.wasm', 'arraybuffer'));
      }

      this.decoderPending = Promise.all(librariesPending).then(function (libraries) {
        var jsContent = libraries[0];

        if (!useJS) {
          _this4.decoderConfig.wasmBinary = libraries[1];
        }

        var fn = DRACOWorker.toString();
        var body = ['/* draco decoder */', jsContent, '', '/* worker */', fn.substring(fn.indexOf('{') + 1, fn.lastIndexOf('}'))].join('\n');
        _this4.workerSourceURL = URL.createObjectURL(new Blob([body]));
      });
      return this.decoderPending;
    }
  }, {
    key: "_getWorker",
    value: function _getWorker(taskID, taskCost) {
      var _this5 = this;

      return this._initDecoder().then(function () {
        if (_this5.workerPool.length < _this5.workerLimit) {
          var _worker2 = new Worker(_this5.workerSourceURL);

          _worker2._callbacks = {};
          _worker2._taskCosts = {};
          _worker2._taskLoad = 0;

          _worker2.postMessage({
            type: 'init',
            decoderConfig: _this5.decoderConfig
          });

          _worker2.onmessage = function (e) {
            var message = e.data;

            switch (message.type) {
              case 'decode':
                _worker2._callbacks[message.id].resolve(message);

                break;

              case 'error':
                _worker2._callbacks[message.id].reject(message);

                break;

              default:
                console.error('THREE.DRACOLoader: Unexpected message, "' + message.type + '"');
            }
          };

          _this5.workerPool.push(_worker2);
        } else {
          _this5.workerPool.sort(function (a, b) {
            return a._taskLoad > b._taskLoad ? -1 : 1;
          });
        }

        var worker = _this5.workerPool[_this5.workerPool.length - 1];
        worker._taskCosts[taskID] = taskCost;
        worker._taskLoad += taskCost;
        return worker;
      });
    }
  }, {
    key: "_releaseTask",
    value: function _releaseTask(worker, taskID) {
      worker._taskLoad -= worker._taskCosts[taskID];
      delete worker._callbacks[taskID];
      delete worker._taskCosts[taskID];
    }
  }, {
    key: "debug",
    value: function debug() {
      console.log('Task load: ', this.workerPool.map(function (worker) {
        return worker._taskLoad;
      }));
    }
  }, {
    key: "dispose",
    value: function dispose() {
      for (var i = 0; i < this.workerPool.length; ++i) {
        this.workerPool[i].terminate();
      }

      this.workerPool.length = 0;
      return this;
    }
  }]);
  return DRACOLoader;
}(_three.Loader);
/* WEB WORKER */


exports.DRACOLoader = DRACOLoader;

function DRACOWorker() {
  var decoderConfig;
  var decoderPending;

  onmessage = function onmessage(e) {
    var message = e.data;

    switch (message.type) {
      case 'init':
        decoderConfig = message.decoderConfig;
        decoderPending = new Promise(function (resolve
        /*, reject*/
        ) {
          decoderConfig.onModuleLoaded = function (draco) {
            // Module is Promise-like. Wrap before resolving to avoid loop.
            resolve({
              draco: draco
            });
          };

          DracoDecoderModule(decoderConfig); // eslint-disable-line no-undef
        });
        break;

      case 'decode':
        var buffer = message.buffer;
        var taskConfig = message.taskConfig;
        decoderPending.then(function (module) {
          var draco = module.draco;
          var decoder = new draco.Decoder();
          var decoderBuffer = new draco.DecoderBuffer();
          decoderBuffer.Init(new Int8Array(buffer), buffer.byteLength);

          try {
            var geometry = decodeGeometry(draco, decoder, decoderBuffer, taskConfig);
            var buffers = geometry.attributes.map(function (attr) {
              return attr.array.buffer;
            });
            if (geometry.index) buffers.push(geometry.index.array.buffer);
            self.postMessage({
              type: 'decode',
              id: message.id,
              geometry: geometry
            }, buffers);
          } catch (error) {
            console.error(error);
            self.postMessage({
              type: 'error',
              id: message.id,
              error: error.message
            });
          } finally {
            draco.destroy(decoderBuffer);
            draco.destroy(decoder);
          }
        });
        break;
    }
  };

  function decodeGeometry(draco, decoder, decoderBuffer, taskConfig) {
    var attributeIDs = taskConfig.attributeIDs;
    var attributeTypes = taskConfig.attributeTypes;
    var dracoGeometry;
    var decodingStatus;
    var geometryType = decoder.GetEncodedGeometryType(decoderBuffer);

    if (geometryType === draco.TRIANGULAR_MESH) {
      dracoGeometry = new draco.Mesh();
      decodingStatus = decoder.DecodeBufferToMesh(decoderBuffer, dracoGeometry);
    } else if (geometryType === draco.POINT_CLOUD) {
      dracoGeometry = new draco.PointCloud();
      decodingStatus = decoder.DecodeBufferToPointCloud(decoderBuffer, dracoGeometry);
    } else {
      throw new Error('THREE.DRACOLoader: Unexpected geometry type.');
    }

    if (!decodingStatus.ok() || dracoGeometry.ptr === 0) {
      throw new Error('THREE.DRACOLoader: Decoding failed: ' + decodingStatus.error_msg());
    }

    var geometry = {
      index: null,
      attributes: []
    }; // Gather all vertex attributes.

    for (var attributeName in attributeIDs) {
      var attributeType = self[attributeTypes[attributeName]];
      var attribute = void 0;
      var attributeID = void 0; // A Draco file may be created with default vertex attributes, whose attribute IDs
      // are mapped 1:1 from their semantic name (POSITION, NORMAL, ...). Alternatively,
      // a Draco file may contain a custom set of attributes, identified by known unique
      // IDs. glTF files always do the latter, and `.drc` files typically do the former.

      if (taskConfig.useUniqueIDs) {
        attributeID = attributeIDs[attributeName];
        attribute = decoder.GetAttributeByUniqueId(dracoGeometry, attributeID);
      } else {
        attributeID = decoder.GetAttributeId(dracoGeometry, draco[attributeIDs[attributeName]]);
        if (attributeID === -1) continue;
        attribute = decoder.GetAttribute(dracoGeometry, attributeID);
      }

      geometry.attributes.push(decodeAttribute(draco, decoder, dracoGeometry, attributeName, attributeType, attribute));
    } // Add index.


    if (geometryType === draco.TRIANGULAR_MESH) {
      geometry.index = decodeIndex(draco, decoder, dracoGeometry);
    }

    draco.destroy(dracoGeometry);
    return geometry;
  }

  function decodeIndex(draco, decoder, dracoGeometry) {
    var numFaces = dracoGeometry.num_faces();
    var numIndices = numFaces * 3;
    var byteLength = numIndices * 4;

    var ptr = draco._malloc(byteLength);

    decoder.GetTrianglesUInt32Array(dracoGeometry, byteLength, ptr);
    var index = new Uint32Array(draco.HEAPF32.buffer, ptr, numIndices).slice();

    draco._free(ptr);

    return {
      array: index,
      itemSize: 1
    };
  }

  function decodeAttribute(draco, decoder, dracoGeometry, attributeName, attributeType, attribute) {
    var numComponents = attribute.num_components();
    var numPoints = dracoGeometry.num_points();
    var numValues = numPoints * numComponents;
    var byteLength = numValues * attributeType.BYTES_PER_ELEMENT;
    var dataType = getDracoDataType(draco, attributeType);

    var ptr = draco._malloc(byteLength);

    decoder.GetAttributeDataArrayForAllPoints(dracoGeometry, attribute, dataType, byteLength, ptr);
    var array = new attributeType(draco.HEAPF32.buffer, ptr, numValues).slice();

    draco._free(ptr);

    return {
      name: attributeName,
      array: array,
      itemSize: numComponents
    };
  }

  function getDracoDataType(draco, attributeType) {
    switch (attributeType) {
      case Float32Array:
        return draco.DT_FLOAT32;

      case Int8Array:
        return draco.DT_INT8;

      case Int16Array:
        return draco.DT_INT16;

      case Int32Array:
        return draco.DT_INT32;

      case Uint8Array:
        return draco.DT_UINT8;

      case Uint16Array:
        return draco.DT_UINT16;

      case Uint32Array:
        return draco.DT_UINT32;
    }
  }
}

/***/ }),

/***/ "./node_modules/itowns/lib/ThreeExtended/loaders/GLTFLoader.js":
/*!*********************************************************************!*\
  !*** ./node_modules/itowns/lib/ThreeExtended/loaders/GLTFLoader.js ***!
  \*********************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.GLTFLoader = void 0;

var _slicedToArray2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/slicedToArray */ "./node_modules/@babel/runtime/helpers/slicedToArray.js"));

var _typeof2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _get2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/get */ "./node_modules/@babel/runtime/helpers/get.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _three = __webpack_require__(/*! three */ "./node_modules/three/build/three.cjs");

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var GLTFLoader = /*#__PURE__*/function (_Loader) {
  (0, _inherits2["default"])(GLTFLoader, _Loader);

  var _super = _createSuper(GLTFLoader);

  function GLTFLoader(manager) {
    var _this;

    (0, _classCallCheck2["default"])(this, GLTFLoader);
    _this = _super.call(this, manager);
    _this.dracoLoader = null;
    _this.ktx2Loader = null;
    _this.meshoptDecoder = null;
    _this.pluginCallbacks = [];

    _this.register(function (parser) {
      return new GLTFMaterialsClearcoatExtension(parser);
    });

    _this.register(function (parser) {
      return new GLTFTextureBasisUExtension(parser);
    });

    _this.register(function (parser) {
      return new GLTFTextureWebPExtension(parser);
    });

    _this.register(function (parser) {
      return new GLTFMaterialsSheenExtension(parser);
    });

    _this.register(function (parser) {
      return new GLTFMaterialsTransmissionExtension(parser);
    });

    _this.register(function (parser) {
      return new GLTFMaterialsVolumeExtension(parser);
    });

    _this.register(function (parser) {
      return new GLTFMaterialsIorExtension(parser);
    });

    _this.register(function (parser) {
      return new GLTFMaterialsSpecularExtension(parser);
    });

    _this.register(function (parser) {
      return new GLTFLightsExtension(parser);
    });

    _this.register(function (parser) {
      return new GLTFMeshoptCompression(parser);
    });

    return _this;
  }

  (0, _createClass2["default"])(GLTFLoader, [{
    key: "load",
    value: function load(url, onLoad, onProgress, onError) {
      var scope = this;
      var resourcePath;

      if (this.resourcePath !== '') {
        resourcePath = this.resourcePath;
      } else if (this.path !== '') {
        resourcePath = this.path;
      } else {
        resourcePath = _three.LoaderUtils.extractUrlBase(url);
      } // Tells the LoadingManager to track an extra item, which resolves after
      // the model is fully loaded. This means the count of items loaded will
      // be incorrect, but ensures manager.onLoad() does not fire early.


      this.manager.itemStart(url);

      var _onError = function (e) {
        if (onError) {
          onError(e);
        } else {
          console.error(e);
        }

        scope.manager.itemError(url);
        scope.manager.itemEnd(url);
      };

      var loader = new _three.FileLoader(this.manager);
      loader.setPath(this.path);
      loader.setResponseType('arraybuffer');
      loader.setRequestHeader(this.requestHeader);
      loader.setWithCredentials(this.withCredentials);
      loader.load(url, function (data) {
        try {
          scope.parse(data, resourcePath, function (gltf) {
            onLoad(gltf);
            scope.manager.itemEnd(url);
          }, _onError);
        } catch (e) {
          _onError(e);
        }
      }, onProgress, _onError);
    }
  }, {
    key: "setDRACOLoader",
    value: function setDRACOLoader(dracoLoader) {
      this.dracoLoader = dracoLoader;
      return this;
    }
  }, {
    key: "setDDSLoader",
    value: function setDDSLoader() {
      throw new Error('THREE.GLTFLoader: "MSFT_texture_dds" no longer supported. Please update to "KHR_texture_basisu".');
    }
  }, {
    key: "setKTX2Loader",
    value: function setKTX2Loader(ktx2Loader) {
      this.ktx2Loader = ktx2Loader;
      return this;
    }
  }, {
    key: "setMeshoptDecoder",
    value: function setMeshoptDecoder(meshoptDecoder) {
      this.meshoptDecoder = meshoptDecoder;
      return this;
    }
  }, {
    key: "register",
    value: function register(callback) {
      if (this.pluginCallbacks.indexOf(callback) === -1) {
        this.pluginCallbacks.push(callback);
      }

      return this;
    }
  }, {
    key: "unregister",
    value: function unregister(callback) {
      if (this.pluginCallbacks.indexOf(callback) !== -1) {
        this.pluginCallbacks.splice(this.pluginCallbacks.indexOf(callback), 1);
      }

      return this;
    }
  }, {
    key: "parse",
    value: function parse(data, path, onLoad, onError) {
      var content;
      var extensions = {};
      var plugins = {};

      if (typeof data === 'string') {
        content = data;
      } else {
        var magic = _three.LoaderUtils.decodeText(new Uint8Array(data, 0, 4));

        if (magic === BINARY_EXTENSION_HEADER_MAGIC) {
          try {
            extensions[EXTENSIONS.KHR_BINARY_GLTF] = new GLTFBinaryExtension(data);
          } catch (error) {
            if (onError) onError(error);
            return;
          }

          content = extensions[EXTENSIONS.KHR_BINARY_GLTF].content;
        } else {
          content = _three.LoaderUtils.decodeText(new Uint8Array(data));
        }
      }

      var json = JSON.parse(content);

      if (json.asset === undefined || json.asset.version[0] < 2) {
        if (onError) onError(new Error('THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported.'));
        return;
      }

      var parser = new GLTFParser(json, {
        path: path || this.resourcePath || '',
        crossOrigin: this.crossOrigin,
        requestHeader: this.requestHeader,
        manager: this.manager,
        ktx2Loader: this.ktx2Loader,
        meshoptDecoder: this.meshoptDecoder
      });
      parser.fileLoader.setRequestHeader(this.requestHeader);

      for (var i = 0; i < this.pluginCallbacks.length; i++) {
        var plugin = this.pluginCallbacks[i](parser);
        plugins[plugin.name] = plugin; // Workaround to avoid determining as unknown extension
        // in addUnknownExtensionsToUserData().
        // Remove this workaround if we move all the existing
        // extension handlers to plugin system

        extensions[plugin.name] = true;
      }

      if (json.extensionsUsed) {
        for (var _i = 0; _i < json.extensionsUsed.length; ++_i) {
          var extensionName = json.extensionsUsed[_i];
          var extensionsRequired = json.extensionsRequired || [];

          switch (extensionName) {
            case EXTENSIONS.KHR_MATERIALS_UNLIT:
              extensions[extensionName] = new GLTFMaterialsUnlitExtension();
              break;

            case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:
              extensions[extensionName] = new GLTFMaterialsPbrSpecularGlossinessExtension();
              break;

            case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
              extensions[extensionName] = new GLTFDracoMeshCompressionExtension(json, this.dracoLoader);
              break;

            case EXTENSIONS.KHR_TEXTURE_TRANSFORM:
              extensions[extensionName] = new GLTFTextureTransformExtension();
              break;

            case EXTENSIONS.KHR_MESH_QUANTIZATION:
              extensions[extensionName] = new GLTFMeshQuantizationExtension();
              break;

            default:
              if (extensionsRequired.indexOf(extensionName) >= 0 && plugins[extensionName] === undefined) {
                console.warn('THREE.GLTFLoader: Unknown extension "' + extensionName + '".');
              }

          }
        }
      }

      parser.setExtensions(extensions);
      parser.setPlugins(plugins);
      parser.parse(onLoad, onError);
    }
  }, {
    key: "parseAsync",
    value: function parseAsync(data, path) {
      var scope = this;
      return new Promise(function (resolve, reject) {
        scope.parse(data, path, resolve, reject);
      });
    }
  }]);
  return GLTFLoader;
}(_three.Loader);
/* GLTFREGISTRY */


exports.GLTFLoader = GLTFLoader;

function GLTFRegistry() {
  var objects = {};
  return {
    get: function get(key) {
      return objects[key];
    },
    add: function add(key, object) {
      objects[key] = object;
    },
    remove: function remove(key) {
      delete objects[key];
    },
    removeAll: function removeAll() {
      objects = {};
    }
  };
}
/*********************************/

/********** EXTENSIONS ***********/

/*********************************/


var EXTENSIONS = {
  KHR_BINARY_GLTF: 'KHR_binary_glTF',
  KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',
  KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',
  KHR_MATERIALS_CLEARCOAT: 'KHR_materials_clearcoat',
  KHR_MATERIALS_IOR: 'KHR_materials_ior',
  KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
  KHR_MATERIALS_SHEEN: 'KHR_materials_sheen',
  KHR_MATERIALS_SPECULAR: 'KHR_materials_specular',
  KHR_MATERIALS_TRANSMISSION: 'KHR_materials_transmission',
  KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
  KHR_MATERIALS_VOLUME: 'KHR_materials_volume',
  KHR_TEXTURE_BASISU: 'KHR_texture_basisu',
  KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform',
  KHR_MESH_QUANTIZATION: 'KHR_mesh_quantization',
  EXT_TEXTURE_WEBP: 'EXT_texture_webp',
  EXT_MESHOPT_COMPRESSION: 'EXT_meshopt_compression'
};
/**
 * Punctual Lights Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual
 */

var GLTFLightsExtension = /*#__PURE__*/function () {
  function GLTFLightsExtension(parser) {
    (0, _classCallCheck2["default"])(this, GLTFLightsExtension);
    this.parser = parser;
    this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL; // Object3D instance caches

    this.cache = {
      refs: {},
      uses: {}
    };
  }

  (0, _createClass2["default"])(GLTFLightsExtension, [{
    key: "_markDefs",
    value: function _markDefs() {
      var parser = this.parser;
      var nodeDefs = this.parser.json.nodes || [];

      for (var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex++) {
        var nodeDef = nodeDefs[nodeIndex];

        if (nodeDef.extensions && nodeDef.extensions[this.name] && nodeDef.extensions[this.name].light !== undefined) {
          parser._addNodeRef(this.cache, nodeDef.extensions[this.name].light);
        }
      }
    }
  }, {
    key: "_loadLight",
    value: function _loadLight(lightIndex) {
      var parser = this.parser;
      var cacheKey = 'light:' + lightIndex;
      var dependency = parser.cache.get(cacheKey);
      if (dependency) return dependency;
      var json = parser.json;
      var extensions = json.extensions && json.extensions[this.name] || {};
      var lightDefs = extensions.lights || [];
      var lightDef = lightDefs[lightIndex];
      var lightNode;
      var color = new _three.Color(0xffffff);
      if (lightDef.color !== undefined) color.fromArray(lightDef.color);
      var range = lightDef.range !== undefined ? lightDef.range : 0;

      switch (lightDef.type) {
        case 'directional':
          lightNode = new _three.DirectionalLight(color);
          lightNode.target.position.set(0, 0, -1);
          lightNode.add(lightNode.target);
          break;

        case 'point':
          lightNode = new _three.PointLight(color);
          lightNode.distance = range;
          break;

        case 'spot':
          lightNode = new _three.SpotLight(color);
          lightNode.distance = range; // Handle spotlight properties.

          lightDef.spot = lightDef.spot || {};
          lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle : 0;
          lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0;
          lightNode.angle = lightDef.spot.outerConeAngle;
          lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
          lightNode.target.position.set(0, 0, -1);
          lightNode.add(lightNode.target);
          break;

        default:
          throw new Error('THREE.GLTFLoader: Unexpected light type: ' + lightDef.type);
      } // Some lights (e.g. spot) default to a position other than the origin. Reset the position
      // here, because node-level parsing will only override position if explicitly specified.


      lightNode.position.set(0, 0, 0);
      lightNode.decay = 2;
      if (lightDef.intensity !== undefined) lightNode.intensity = lightDef.intensity;
      lightNode.name = parser.createUniqueName(lightDef.name || 'light_' + lightIndex);
      dependency = Promise.resolve(lightNode);
      parser.cache.add(cacheKey, dependency);
      return dependency;
    }
  }, {
    key: "createNodeAttachment",
    value: function createNodeAttachment(nodeIndex) {
      var self = this;
      var parser = this.parser;
      var json = parser.json;
      var nodeDef = json.nodes[nodeIndex];
      var lightDef = nodeDef.extensions && nodeDef.extensions[this.name] || {};
      var lightIndex = lightDef.light;
      if (lightIndex === undefined) return null;
      return this._loadLight(lightIndex).then(function (light) {
        return parser._getNodeRef(self.cache, lightIndex, light);
      });
    }
  }]);
  return GLTFLightsExtension;
}();
/**
 * Unlit Materials Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_unlit
 */


var GLTFMaterialsUnlitExtension = /*#__PURE__*/function () {
  function GLTFMaterialsUnlitExtension() {
    (0, _classCallCheck2["default"])(this, GLTFMaterialsUnlitExtension);
    this.name = EXTENSIONS.KHR_MATERIALS_UNLIT;
  }

  (0, _createClass2["default"])(GLTFMaterialsUnlitExtension, [{
    key: "getMaterialType",
    value: function getMaterialType() {
      return _three.MeshBasicMaterial;
    }
  }, {
    key: "extendParams",
    value: function extendParams(materialParams, materialDef, parser) {
      var pending = [];
      materialParams.color = new _three.Color(1.0, 1.0, 1.0);
      materialParams.opacity = 1.0;
      var metallicRoughness = materialDef.pbrMetallicRoughness;

      if (metallicRoughness) {
        if (Array.isArray(metallicRoughness.baseColorFactor)) {
          var array = metallicRoughness.baseColorFactor;
          materialParams.color.fromArray(array);
          materialParams.opacity = array[3];
        }

        if (metallicRoughness.baseColorTexture !== undefined) {
          pending.push(parser.assignTexture(materialParams, 'map', metallicRoughness.baseColorTexture));
        }
      }

      return Promise.all(pending);
    }
  }]);
  return GLTFMaterialsUnlitExtension;
}();
/**
 * Clearcoat Materials Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_clearcoat
 */


var GLTFMaterialsClearcoatExtension = /*#__PURE__*/function () {
  function GLTFMaterialsClearcoatExtension(parser) {
    (0, _classCallCheck2["default"])(this, GLTFMaterialsClearcoatExtension);
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_CLEARCOAT;
  }

  (0, _createClass2["default"])(GLTFMaterialsClearcoatExtension, [{
    key: "getMaterialType",
    value: function getMaterialType(materialIndex) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];
      if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
      return _three.MeshPhysicalMaterial;
    }
  }, {
    key: "extendMaterialParams",
    value: function extendMaterialParams(materialIndex, materialParams) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];

      if (!materialDef.extensions || !materialDef.extensions[this.name]) {
        return Promise.resolve();
      }

      var pending = [];
      var extension = materialDef.extensions[this.name];

      if (extension.clearcoatFactor !== undefined) {
        materialParams.clearcoat = extension.clearcoatFactor;
      }

      if (extension.clearcoatTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'clearcoatMap', extension.clearcoatTexture));
      }

      if (extension.clearcoatRoughnessFactor !== undefined) {
        materialParams.clearcoatRoughness = extension.clearcoatRoughnessFactor;
      }

      if (extension.clearcoatRoughnessTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'clearcoatRoughnessMap', extension.clearcoatRoughnessTexture));
      }

      if (extension.clearcoatNormalTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'clearcoatNormalMap', extension.clearcoatNormalTexture));

        if (extension.clearcoatNormalTexture.scale !== undefined) {
          var scale = extension.clearcoatNormalTexture.scale;
          materialParams.clearcoatNormalScale = new _three.Vector2(scale, scale);
        }
      }

      return Promise.all(pending);
    }
  }]);
  return GLTFMaterialsClearcoatExtension;
}();
/**
 * Sheen Materials Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_sheen
 */


var GLTFMaterialsSheenExtension = /*#__PURE__*/function () {
  function GLTFMaterialsSheenExtension(parser) {
    (0, _classCallCheck2["default"])(this, GLTFMaterialsSheenExtension);
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_SHEEN;
  }

  (0, _createClass2["default"])(GLTFMaterialsSheenExtension, [{
    key: "getMaterialType",
    value: function getMaterialType(materialIndex) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];
      if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
      return _three.MeshPhysicalMaterial;
    }
  }, {
    key: "extendMaterialParams",
    value: function extendMaterialParams(materialIndex, materialParams) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];

      if (!materialDef.extensions || !materialDef.extensions[this.name]) {
        return Promise.resolve();
      }

      var pending = [];
      materialParams.sheenColor = new _three.Color(0, 0, 0);
      materialParams.sheenRoughness = 0;
      materialParams.sheen = 1;
      var extension = materialDef.extensions[this.name];

      if (extension.sheenColorFactor !== undefined) {
        materialParams.sheenColor.fromArray(extension.sheenColorFactor);
      }

      if (extension.sheenRoughnessFactor !== undefined) {
        materialParams.sheenRoughness = extension.sheenRoughnessFactor;
      }

      if (extension.sheenColorTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'sheenColorMap', extension.sheenColorTexture));
      }

      if (extension.sheenRoughnessTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'sheenRoughnessMap', extension.sheenRoughnessTexture));
      }

      return Promise.all(pending);
    }
  }]);
  return GLTFMaterialsSheenExtension;
}();
/**
 * Transmission Materials Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_transmission
 * Draft: https://github.com/KhronosGroup/glTF/pull/1698
 */


var GLTFMaterialsTransmissionExtension = /*#__PURE__*/function () {
  function GLTFMaterialsTransmissionExtension(parser) {
    (0, _classCallCheck2["default"])(this, GLTFMaterialsTransmissionExtension);
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_TRANSMISSION;
  }

  (0, _createClass2["default"])(GLTFMaterialsTransmissionExtension, [{
    key: "getMaterialType",
    value: function getMaterialType(materialIndex) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];
      if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
      return _three.MeshPhysicalMaterial;
    }
  }, {
    key: "extendMaterialParams",
    value: function extendMaterialParams(materialIndex, materialParams) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];

      if (!materialDef.extensions || !materialDef.extensions[this.name]) {
        return Promise.resolve();
      }

      var pending = [];
      var extension = materialDef.extensions[this.name];

      if (extension.transmissionFactor !== undefined) {
        materialParams.transmission = extension.transmissionFactor;
      }

      if (extension.transmissionTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'transmissionMap', extension.transmissionTexture));
      }

      return Promise.all(pending);
    }
  }]);
  return GLTFMaterialsTransmissionExtension;
}();
/**
 * Materials Volume Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_volume
 */


var GLTFMaterialsVolumeExtension = /*#__PURE__*/function () {
  function GLTFMaterialsVolumeExtension(parser) {
    (0, _classCallCheck2["default"])(this, GLTFMaterialsVolumeExtension);
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_VOLUME;
  }

  (0, _createClass2["default"])(GLTFMaterialsVolumeExtension, [{
    key: "getMaterialType",
    value: function getMaterialType(materialIndex) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];
      if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
      return _three.MeshPhysicalMaterial;
    }
  }, {
    key: "extendMaterialParams",
    value: function extendMaterialParams(materialIndex, materialParams) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];

      if (!materialDef.extensions || !materialDef.extensions[this.name]) {
        return Promise.resolve();
      }

      var pending = [];
      var extension = materialDef.extensions[this.name];
      materialParams.thickness = extension.thicknessFactor !== undefined ? extension.thicknessFactor : 0;

      if (extension.thicknessTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'thicknessMap', extension.thicknessTexture));
      }

      materialParams.attenuationDistance = extension.attenuationDistance || 0;
      var colorArray = extension.attenuationColor || [1, 1, 1];
      materialParams.attenuationColor = new _three.Color(colorArray[0], colorArray[1], colorArray[2]);
      return Promise.all(pending);
    }
  }]);
  return GLTFMaterialsVolumeExtension;
}();
/**
 * Materials ior Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_ior
 */


var GLTFMaterialsIorExtension = /*#__PURE__*/function () {
  function GLTFMaterialsIorExtension(parser) {
    (0, _classCallCheck2["default"])(this, GLTFMaterialsIorExtension);
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_IOR;
  }

  (0, _createClass2["default"])(GLTFMaterialsIorExtension, [{
    key: "getMaterialType",
    value: function getMaterialType(materialIndex) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];
      if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
      return _three.MeshPhysicalMaterial;
    }
  }, {
    key: "extendMaterialParams",
    value: function extendMaterialParams(materialIndex, materialParams) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];

      if (!materialDef.extensions || !materialDef.extensions[this.name]) {
        return Promise.resolve();
      }

      var extension = materialDef.extensions[this.name];
      materialParams.ior = extension.ior !== undefined ? extension.ior : 1.5;
      return Promise.resolve();
    }
  }]);
  return GLTFMaterialsIorExtension;
}();
/**
 * Materials specular Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_specular
 */


var GLTFMaterialsSpecularExtension = /*#__PURE__*/function () {
  function GLTFMaterialsSpecularExtension(parser) {
    (0, _classCallCheck2["default"])(this, GLTFMaterialsSpecularExtension);
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_SPECULAR;
  }

  (0, _createClass2["default"])(GLTFMaterialsSpecularExtension, [{
    key: "getMaterialType",
    value: function getMaterialType(materialIndex) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];
      if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
      return _three.MeshPhysicalMaterial;
    }
  }, {
    key: "extendMaterialParams",
    value: function extendMaterialParams(materialIndex, materialParams) {
      var parser = this.parser;
      var materialDef = parser.json.materials[materialIndex];

      if (!materialDef.extensions || !materialDef.extensions[this.name]) {
        return Promise.resolve();
      }

      var pending = [];
      var extension = materialDef.extensions[this.name];
      materialParams.specularIntensity = extension.specularFactor !== undefined ? extension.specularFactor : 1.0;

      if (extension.specularTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'specularIntensityMap', extension.specularTexture));
      }

      var colorArray = extension.specularColorFactor || [1, 1, 1];
      materialParams.specularColor = new _three.Color(colorArray[0], colorArray[1], colorArray[2]);

      if (extension.specularColorTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'specularColorMap', extension.specularColorTexture).then(function (texture) {
          texture.encoding = _three.sRGBEncoding;
        }));
      }

      return Promise.all(pending);
    }
  }]);
  return GLTFMaterialsSpecularExtension;
}();
/**
 * BasisU Texture Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_basisu
 */


var GLTFTextureBasisUExtension = /*#__PURE__*/function () {
  function GLTFTextureBasisUExtension(parser) {
    (0, _classCallCheck2["default"])(this, GLTFTextureBasisUExtension);
    this.parser = parser;
    this.name = EXTENSIONS.KHR_TEXTURE_BASISU;
  }

  (0, _createClass2["default"])(GLTFTextureBasisUExtension, [{
    key: "loadTexture",
    value: function loadTexture(textureIndex) {
      var parser = this.parser;
      var json = parser.json;
      var textureDef = json.textures[textureIndex];

      if (!textureDef.extensions || !textureDef.extensions[this.name]) {
        return null;
      }

      var extension = textureDef.extensions[this.name];
      var source = json.images[extension.source];
      var loader = parser.options.ktx2Loader;

      if (!loader) {
        if (json.extensionsRequired && json.extensionsRequired.indexOf(this.name) >= 0) {
          throw new Error('THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures');
        } else {
          // Assumes that the extension is optional and that a fallback texture is present
          return null;
        }
      }

      return parser.loadTextureImage(textureIndex, source, loader);
    }
  }]);
  return GLTFTextureBasisUExtension;
}();
/**
 * WebP Texture Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_texture_webp
 */


var GLTFTextureWebPExtension = /*#__PURE__*/function () {
  function GLTFTextureWebPExtension(parser) {
    (0, _classCallCheck2["default"])(this, GLTFTextureWebPExtension);
    this.parser = parser;
    this.name = EXTENSIONS.EXT_TEXTURE_WEBP;
    this.isSupported = null;
  }

  (0, _createClass2["default"])(GLTFTextureWebPExtension, [{
    key: "loadTexture",
    value: function loadTexture(textureIndex) {
      var name = this.name;
      var parser = this.parser;
      var json = parser.json;
      var textureDef = json.textures[textureIndex];

      if (!textureDef.extensions || !textureDef.extensions[name]) {
        return null;
      }

      var extension = textureDef.extensions[name];
      var source = json.images[extension.source];
      var loader = parser.textureLoader;

      if (source.uri) {
        var handler = parser.options.manager.getHandler(source.uri);
        if (handler !== null) loader = handler;
      }

      return this.detectSupport().then(function (isSupported) {
        if (isSupported) return parser.loadTextureImage(textureIndex, source, loader);

        if (json.extensionsRequired && json.extensionsRequired.indexOf(name) >= 0) {
          throw new Error('THREE.GLTFLoader: WebP required by asset but unsupported.');
        } // Fall back to PNG or JPEG.


        return parser.loadTexture(textureIndex);
      });
    }
  }, {
    key: "detectSupport",
    value: function detectSupport() {
      if (!this.isSupported) {
        this.isSupported = new Promise(function (resolve) {
          var image = new Image(); // Lossy test image. Support for lossy images doesn't guarantee support for all
          // WebP images, unfortunately.

          image.src = 'data:image/webp;base64,UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA';

          image.onload = image.onerror = function () {
            resolve(image.height === 1);
          };
        });
      }

      return this.isSupported;
    }
  }]);
  return GLTFTextureWebPExtension;
}();
/**
 * meshopt BufferView Compression Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_meshopt_compression
 */


var GLTFMeshoptCompression = /*#__PURE__*/function () {
  function GLTFMeshoptCompression(parser) {
    (0, _classCallCheck2["default"])(this, GLTFMeshoptCompression);
    this.name = EXTENSIONS.EXT_MESHOPT_COMPRESSION;
    this.parser = parser;
  }

  (0, _createClass2["default"])(GLTFMeshoptCompression, [{
    key: "loadBufferView",
    value: function loadBufferView(index) {
      var json = this.parser.json;
      var bufferView = json.bufferViews[index];

      if (bufferView.extensions && bufferView.extensions[this.name]) {
        var extensionDef = bufferView.extensions[this.name];
        var buffer = this.parser.getDependency('buffer', extensionDef.buffer);
        var decoder = this.parser.options.meshoptDecoder;

        if (!decoder || !decoder.supported) {
          if (json.extensionsRequired && json.extensionsRequired.indexOf(this.name) >= 0) {
            throw new Error('THREE.GLTFLoader: setMeshoptDecoder must be called before loading compressed files');
          } else {
            // Assumes that the extension is optional and that fallback buffer data is present
            return null;
          }
        }

        return Promise.all([buffer, decoder.ready]).then(function (res) {
          var byteOffset = extensionDef.byteOffset || 0;
          var byteLength = extensionDef.byteLength || 0;
          var count = extensionDef.count;
          var stride = extensionDef.byteStride;
          var result = new ArrayBuffer(count * stride);
          var source = new Uint8Array(res[0], byteOffset, byteLength);
          decoder.decodeGltfBuffer(new Uint8Array(result), count, stride, source, extensionDef.mode, extensionDef.filter);
          return result;
        });
      } else {
        return null;
      }
    }
  }]);
  return GLTFMeshoptCompression;
}();
/* BINARY EXTENSION */


var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
var BINARY_EXTENSION_HEADER_LENGTH = 12;
var BINARY_EXTENSION_CHUNK_TYPES = {
  JSON: 0x4E4F534A,
  BIN: 0x004E4942
};
var GLTFBinaryExtension = /*#__PURE__*/(0, _createClass2["default"])(function GLTFBinaryExtension(data) {
  (0, _classCallCheck2["default"])(this, GLTFBinaryExtension);
  this.name = EXTENSIONS.KHR_BINARY_GLTF;
  this.content = null;
  this.body = null;
  var headerView = new DataView(data, 0, BINARY_EXTENSION_HEADER_LENGTH);
  this.header = {
    magic: _three.LoaderUtils.decodeText(new Uint8Array(data.slice(0, 4))),
    version: headerView.getUint32(4, true),
    length: headerView.getUint32(8, true)
  };

  if (this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC) {
    throw new Error('THREE.GLTFLoader: Unsupported glTF-Binary header.');
  } else if (this.header.version < 2.0) {
    throw new Error('THREE.GLTFLoader: Legacy binary file detected.');
  }

  var chunkContentsLength = this.header.length - BINARY_EXTENSION_HEADER_LENGTH;
  var chunkView = new DataView(data, BINARY_EXTENSION_HEADER_LENGTH);
  var chunkIndex = 0;

  while (chunkIndex < chunkContentsLength) {
    var chunkLength = chunkView.getUint32(chunkIndex, true);
    chunkIndex += 4;
    var chunkType = chunkView.getUint32(chunkIndex, true);
    chunkIndex += 4;

    if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON) {
      var contentArray = new Uint8Array(data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength);
      this.content = _three.LoaderUtils.decodeText(contentArray);
    } else if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN) {
      var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
      this.body = data.slice(byteOffset, byteOffset + chunkLength);
    } // Clients must ignore chunks with unknown types.


    chunkIndex += chunkLength;
  }

  if (this.content === null) {
    throw new Error('THREE.GLTFLoader: JSON content not found.');
  }
});
/**
 * DRACO Mesh Compression Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_draco_mesh_compression
 */

var GLTFDracoMeshCompressionExtension = /*#__PURE__*/function () {
  function GLTFDracoMeshCompressionExtension(json, dracoLoader) {
    (0, _classCallCheck2["default"])(this, GLTFDracoMeshCompressionExtension);

    if (!dracoLoader) {
      throw new Error('THREE.GLTFLoader: No DRACOLoader instance provided.');
    }

    this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
    this.json = json;
    this.dracoLoader = dracoLoader;
    this.dracoLoader.preload();
  }

  (0, _createClass2["default"])(GLTFDracoMeshCompressionExtension, [{
    key: "decodePrimitive",
    value: function decodePrimitive(primitive, parser) {
      var json = this.json;
      var dracoLoader = this.dracoLoader;
      var bufferViewIndex = primitive.extensions[this.name].bufferView;
      var gltfAttributeMap = primitive.extensions[this.name].attributes;
      var threeAttributeMap = {};
      var attributeNormalizedMap = {};
      var attributeTypeMap = {};

      for (var attributeName in gltfAttributeMap) {
        var threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
        threeAttributeMap[threeAttributeName] = gltfAttributeMap[attributeName];
      }

      for (var _attributeName in primitive.attributes) {
        var _threeAttributeName = ATTRIBUTES[_attributeName] || _attributeName.toLowerCase();

        if (gltfAttributeMap[_attributeName] !== undefined) {
          var accessorDef = json.accessors[primitive.attributes[_attributeName]];
          var componentType = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
          attributeTypeMap[_threeAttributeName] = componentType;
          attributeNormalizedMap[_threeAttributeName] = accessorDef.normalized === true;
        }
      }

      return parser.getDependency('bufferView', bufferViewIndex).then(function (bufferView) {
        return new Promise(function (resolve) {
          dracoLoader.decodeDracoFile(bufferView, function (geometry) {
            for (var _attributeName2 in geometry.attributes) {
              var attribute = geometry.attributes[_attributeName2];
              var normalized = attributeNormalizedMap[_attributeName2];
              if (normalized !== undefined) attribute.normalized = normalized;
            }

            resolve(geometry);
          }, threeAttributeMap, attributeTypeMap);
        });
      });
    }
  }]);
  return GLTFDracoMeshCompressionExtension;
}();
/**
 * Texture Transform Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_transform
 */


var GLTFTextureTransformExtension = /*#__PURE__*/function () {
  function GLTFTextureTransformExtension() {
    (0, _classCallCheck2["default"])(this, GLTFTextureTransformExtension);
    this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM;
  }

  (0, _createClass2["default"])(GLTFTextureTransformExtension, [{
    key: "extendTexture",
    value: function extendTexture(texture, transform) {
      if (transform.texCoord !== undefined) {
        console.warn('THREE.GLTFLoader: Custom UV sets in "' + this.name + '" extension not yet supported.');
      }

      if (transform.offset === undefined && transform.rotation === undefined && transform.scale === undefined) {
        // See https://github.com/mrdoob/three.js/issues/21819.
        return texture;
      }

      texture = texture.clone();

      if (transform.offset !== undefined) {
        texture.offset.fromArray(transform.offset);
      }

      if (transform.rotation !== undefined) {
        texture.rotation = transform.rotation;
      }

      if (transform.scale !== undefined) {
        texture.repeat.fromArray(transform.scale);
      }

      texture.needsUpdate = true;
      return texture;
    }
  }]);
  return GLTFTextureTransformExtension;
}();
/**
 * Specular-Glossiness Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Archived/KHR_materials_pbrSpecularGlossiness
 */

/**
 * A sub class of StandardMaterial with some of the functionality
 * changed via the `onBeforeCompile` callback
 * @pailhead
 */


var GLTFMeshStandardSGMaterial = /*#__PURE__*/function (_MeshStandardMaterial) {
  (0, _inherits2["default"])(GLTFMeshStandardSGMaterial, _MeshStandardMaterial);

  var _super2 = _createSuper(GLTFMeshStandardSGMaterial);

  function GLTFMeshStandardSGMaterial(params) {
    var _this2;

    (0, _classCallCheck2["default"])(this, GLTFMeshStandardSGMaterial);
    _this2 = _super2.call(this);
    _this2.isGLTFSpecularGlossinessMaterial = true; //various chunks that need replacing

    var specularMapParsFragmentChunk = ['#ifdef USE_SPECULARMAP', '	uniform sampler2D specularMap;', '#endif'].join('\n');
    var glossinessMapParsFragmentChunk = ['#ifdef USE_GLOSSINESSMAP', '	uniform sampler2D glossinessMap;', '#endif'].join('\n');
    var specularMapFragmentChunk = ['vec3 specularFactor = specular;', '#ifdef USE_SPECULARMAP', '	vec4 texelSpecular = texture2D( specularMap, vUv );', '	// reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture', '	specularFactor *= texelSpecular.rgb;', '#endif'].join('\n');
    var glossinessMapFragmentChunk = ['float glossinessFactor = glossiness;', '#ifdef USE_GLOSSINESSMAP', '	vec4 texelGlossiness = texture2D( glossinessMap, vUv );', '	// reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture', '	glossinessFactor *= texelGlossiness.a;', '#endif'].join('\n');
    var lightPhysicalFragmentChunk = ['PhysicalMaterial material;', 'material.diffuseColor = diffuseColor.rgb * ( 1. - max( specularFactor.r, max( specularFactor.g, specularFactor.b ) ) );', 'vec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );', 'float geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );', 'material.roughness = max( 1.0 - glossinessFactor, 0.0525 ); // 0.0525 corresponds to the base mip of a 256 cubemap.', 'material.roughness += geometryRoughness;', 'material.roughness = min( material.roughness, 1.0 );', 'material.specularColor = specularFactor;'].join('\n');
    var uniforms = {
      specular: {
        value: new _three.Color().setHex(0xffffff)
      },
      glossiness: {
        value: 1
      },
      specularMap: {
        value: null
      },
      glossinessMap: {
        value: null
      }
    };
    _this2._extraUniforms = uniforms;

    _this2.onBeforeCompile = function (shader) {
      for (var uniformName in uniforms) {
        shader.uniforms[uniformName] = uniforms[uniformName];
      }

      shader.fragmentShader = shader.fragmentShader.replace('uniform float roughness;', 'uniform vec3 specular;').replace('uniform float metalness;', 'uniform float glossiness;').replace('#include <roughnessmap_pars_fragment>', specularMapParsFragmentChunk).replace('#include <metalnessmap_pars_fragment>', glossinessMapParsFragmentChunk).replace('#include <roughnessmap_fragment>', specularMapFragmentChunk).replace('#include <metalnessmap_fragment>', glossinessMapFragmentChunk).replace('#include <lights_physical_fragment>', lightPhysicalFragmentChunk);
    };

    Object.defineProperties((0, _assertThisInitialized2["default"])(_this2), {
      specular: {
        get: function get() {
          return uniforms.specular.value;
        },
        set: function set(v) {
          uniforms.specular.value = v;
        }
      },
      specularMap: {
        get: function get() {
          return uniforms.specularMap.value;
        },
        set: function set(v) {
          uniforms.specularMap.value = v;

          if (v) {
            this.defines.USE_SPECULARMAP = ''; // USE_UV is set by the renderer for specular maps
          } else {
            delete this.defines.USE_SPECULARMAP;
          }
        }
      },
      glossiness: {
        get: function get() {
          return uniforms.glossiness.value;
        },
        set: function set(v) {
          uniforms.glossiness.value = v;
        }
      },
      glossinessMap: {
        get: function get() {
          return uniforms.glossinessMap.value;
        },
        set: function set(v) {
          uniforms.glossinessMap.value = v;

          if (v) {
            this.defines.USE_GLOSSINESSMAP = '';
            this.defines.USE_UV = '';
          } else {
            delete this.defines.USE_GLOSSINESSMAP;
            delete this.defines.USE_UV;
          }
        }
      }
    });
    delete _this2.metalness;
    delete _this2.roughness;
    delete _this2.metalnessMap;
    delete _this2.roughnessMap;

    _this2.setValues(params);

    return _this2;
  }

  (0, _createClass2["default"])(GLTFMeshStandardSGMaterial, [{
    key: "copy",
    value: function copy(source) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(GLTFMeshStandardSGMaterial.prototype), "copy", this).call(this, source);
      this.specularMap = source.specularMap;
      this.specular.copy(source.specular);
      this.glossinessMap = source.glossinessMap;
      this.glossiness = source.glossiness;
      delete this.metalness;
      delete this.roughness;
      delete this.metalnessMap;
      delete this.roughnessMap;
      return this;
    }
  }]);
  return GLTFMeshStandardSGMaterial;
}(_three.MeshStandardMaterial);

var GLTFMaterialsPbrSpecularGlossinessExtension = /*#__PURE__*/function () {
  function GLTFMaterialsPbrSpecularGlossinessExtension() {
    (0, _classCallCheck2["default"])(this, GLTFMaterialsPbrSpecularGlossinessExtension);
    this.name = EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS;
    this.specularGlossinessParams = ['color', 'map', 'lightMap', 'lightMapIntensity', 'aoMap', 'aoMapIntensity', 'emissive', 'emissiveIntensity', 'emissiveMap', 'bumpMap', 'bumpScale', 'normalMap', 'normalMapType', 'displacementMap', 'displacementScale', 'displacementBias', 'specularMap', 'specular', 'glossinessMap', 'glossiness', 'alphaMap', 'envMap', 'envMapIntensity', 'refractionRatio'];
  }

  (0, _createClass2["default"])(GLTFMaterialsPbrSpecularGlossinessExtension, [{
    key: "getMaterialType",
    value: function getMaterialType() {
      return GLTFMeshStandardSGMaterial;
    }
  }, {
    key: "extendParams",
    value: function extendParams(materialParams, materialDef, parser) {
      var pbrSpecularGlossiness = materialDef.extensions[this.name];
      materialParams.color = new _three.Color(1.0, 1.0, 1.0);
      materialParams.opacity = 1.0;
      var pending = [];

      if (Array.isArray(pbrSpecularGlossiness.diffuseFactor)) {
        var array = pbrSpecularGlossiness.diffuseFactor;
        materialParams.color.fromArray(array);
        materialParams.opacity = array[3];
      }

      if (pbrSpecularGlossiness.diffuseTexture !== undefined) {
        pending.push(parser.assignTexture(materialParams, 'map', pbrSpecularGlossiness.diffuseTexture));
      }

      materialParams.emissive = new _three.Color(0.0, 0.0, 0.0);
      materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
      materialParams.specular = new _three.Color(1.0, 1.0, 1.0);

      if (Array.isArray(pbrSpecularGlossiness.specularFactor)) {
        materialParams.specular.fromArray(pbrSpecularGlossiness.specularFactor);
      }

      if (pbrSpecularGlossiness.specularGlossinessTexture !== undefined) {
        var specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture;
        pending.push(parser.assignTexture(materialParams, 'glossinessMap', specGlossMapDef));
        pending.push(parser.assignTexture(materialParams, 'specularMap', specGlossMapDef));
      }

      return Promise.all(pending);
    }
  }, {
    key: "createMaterial",
    value: function createMaterial(materialParams) {
      var material = new GLTFMeshStandardSGMaterial(materialParams);
      material.fog = true;
      material.color = materialParams.color;
      material.map = materialParams.map === undefined ? null : materialParams.map;
      material.lightMap = null;
      material.lightMapIntensity = 1.0;
      material.aoMap = materialParams.aoMap === undefined ? null : materialParams.aoMap;
      material.aoMapIntensity = 1.0;
      material.emissive = materialParams.emissive;
      material.emissiveIntensity = 1.0;
      material.emissiveMap = materialParams.emissiveMap === undefined ? null : materialParams.emissiveMap;
      material.bumpMap = materialParams.bumpMap === undefined ? null : materialParams.bumpMap;
      material.bumpScale = 1;
      material.normalMap = materialParams.normalMap === undefined ? null : materialParams.normalMap;
      material.normalMapType = _three.TangentSpaceNormalMap;
      if (materialParams.normalScale) material.normalScale = materialParams.normalScale;
      material.displacementMap = null;
      material.displacementScale = 1;
      material.displacementBias = 0;
      material.specularMap = materialParams.specularMap === undefined ? null : materialParams.specularMap;
      material.specular = materialParams.specular;
      material.glossinessMap = materialParams.glossinessMap === undefined ? null : materialParams.glossinessMap;
      material.glossiness = materialParams.glossiness;
      material.alphaMap = null;
      material.envMap = materialParams.envMap === undefined ? null : materialParams.envMap;
      material.envMapIntensity = 1.0;
      material.refractionRatio = 0.98;
      return material;
    }
  }]);
  return GLTFMaterialsPbrSpecularGlossinessExtension;
}();
/**
 * Mesh Quantization Extension
 *
 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization
 */


var GLTFMeshQuantizationExtension = /*#__PURE__*/(0, _createClass2["default"])(function GLTFMeshQuantizationExtension() {
  (0, _classCallCheck2["default"])(this, GLTFMeshQuantizationExtension);
  this.name = EXTENSIONS.KHR_MESH_QUANTIZATION;
});
/*********************************/

/********** INTERPOLATION ********/

/*********************************/
// Spline Interpolation
// Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation

var GLTFCubicSplineInterpolant = /*#__PURE__*/function (_Interpolant) {
  (0, _inherits2["default"])(GLTFCubicSplineInterpolant, _Interpolant);

  var _super3 = _createSuper(GLTFCubicSplineInterpolant);

  function GLTFCubicSplineInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
    (0, _classCallCheck2["default"])(this, GLTFCubicSplineInterpolant);
    return _super3.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer);
  }

  (0, _createClass2["default"])(GLTFCubicSplineInterpolant, [{
    key: "copySampleValue_",
    value: function copySampleValue_(index) {
      // Copies a sample value to the result buffer. See description of glTF
      // CUBICSPLINE values layout in interpolate_() function below.
      var result = this.resultBuffer,
          values = this.sampleValues,
          valueSize = this.valueSize;

      for (var i = 0; i !== valueSize; i++) {
        result[i] = values[index * valueSize * 3 + valueSize + i];
      }

      return result;
    }
  }]);
  return GLTFCubicSplineInterpolant;
}(_three.Interpolant);

GLTFCubicSplineInterpolant.prototype.beforeStart_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
GLTFCubicSplineInterpolant.prototype.afterEnd_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;

GLTFCubicSplineInterpolant.prototype.interpolate_ = function (i1, t0, t, t1) {
  var result = this.resultBuffer;
  var values = this.sampleValues;
  var stride = this.valueSize;
  var stride3 = stride * 3;
  var td = t1 - t0;
  var p = (t - t0) / td;
  var pp = p * p;
  var ppp = pp * p;
  var offset1 = i1 * stride3;
  var offset0 = offset1 - stride3;
  var s2 = -2 * ppp + 3 * pp;
  var s3 = ppp - pp;

  // Layout of keyframe output values for CUBICSPLINE animations:
  //   [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]
  for (var i = 0; i !== stride; i++) {
    var p0 = values[offset0 + i + stride]; // splineVertex_k

    var m0 = values[offset0 + i + stride * 2] * td; // outTangent_k * (t_k+1 - t_k)

    var p1 = values[offset1 + i + stride]; // splineVertex_k+1

    var m1 = values[offset1 + i] * td; // inTangent_k+1 * (t_k+1 - t_k)

    result[i] = (1 - s2) * p0 + (s3 - pp + p) * m0 + s2 * p1 + s3 * m1;
  }

  return result;
};

var _q = new _three.Quaternion();

var GLTFCubicSplineQuaternionInterpolant = /*#__PURE__*/function (_GLTFCubicSplineInter) {
  (0, _inherits2["default"])(GLTFCubicSplineQuaternionInterpolant, _GLTFCubicSplineInter);

  var _super4 = _createSuper(GLTFCubicSplineQuaternionInterpolant);

  function GLTFCubicSplineQuaternionInterpolant() {
    (0, _classCallCheck2["default"])(this, GLTFCubicSplineQuaternionInterpolant);
    return _super4.apply(this, arguments);
  }

  (0, _createClass2["default"])(GLTFCubicSplineQuaternionInterpolant, [{
    key: "interpolate_",
    value: function interpolate_(i1, t0, t, t1) {
      var result = (0, _get2["default"])((0, _getPrototypeOf2["default"])(GLTFCubicSplineQuaternionInterpolant.prototype), "interpolate_", this).call(this, i1, t0, t, t1);

      _q.fromArray(result).normalize().toArray(result);

      return result;
    }
  }]);
  return GLTFCubicSplineQuaternionInterpolant;
}(GLTFCubicSplineInterpolant);
/*********************************/

/********** INTERNALS ************/

/*********************************/

/* CONSTANTS */


var WEBGL_CONSTANTS = {
  FLOAT: 5126,
  //FLOAT_MAT2: 35674,
  FLOAT_MAT3: 35675,
  FLOAT_MAT4: 35676,
  FLOAT_VEC2: 35664,
  FLOAT_VEC3: 35665,
  FLOAT_VEC4: 35666,
  LINEAR: 9729,
  REPEAT: 10497,
  SAMPLER_2D: 35678,
  POINTS: 0,
  LINES: 1,
  LINE_LOOP: 2,
  LINE_STRIP: 3,
  TRIANGLES: 4,
  TRIANGLE_STRIP: 5,
  TRIANGLE_FAN: 6,
  UNSIGNED_BYTE: 5121,
  UNSIGNED_SHORT: 5123
};
var WEBGL_COMPONENT_TYPES = {
  5120: Int8Array,
  5121: Uint8Array,
  5122: Int16Array,
  5123: Uint16Array,
  5125: Uint32Array,
  5126: Float32Array
};
var WEBGL_FILTERS = {
  9728: _three.NearestFilter,
  9729: _three.LinearFilter,
  9984: _three.NearestMipmapNearestFilter,
  9985: _three.LinearMipmapNearestFilter,
  9986: _three.NearestMipmapLinearFilter,
  9987: _three.LinearMipmapLinearFilter
};
var WEBGL_WRAPPINGS = {
  33071: _three.ClampToEdgeWrapping,
  33648: _three.MirroredRepeatWrapping,
  10497: _three.RepeatWrapping
};
var WEBGL_TYPE_SIZES = {
  'SCALAR': 1,
  'VEC2': 2,
  'VEC3': 3,
  'VEC4': 4,
  'MAT2': 4,
  'MAT3': 9,
  'MAT4': 16
};
var ATTRIBUTES = {
  POSITION: 'position',
  NORMAL: 'normal',
  TANGENT: 'tangent',
  TEXCOORD_0: 'uv',
  TEXCOORD_1: 'uv2',
  COLOR_0: 'color',
  WEIGHTS_0: 'skinWeight',
  JOINTS_0: 'skinIndex',
  _BATCHID: '_BATCHID'
};
var PATH_PROPERTIES = {
  scale: 'scale',
  translation: 'position',
  rotation: 'quaternion',
  weights: 'morphTargetInfluences'
};
var INTERPOLATION = {
  CUBICSPLINE: undefined,
  // We use a custom interpolant (GLTFCubicSplineInterpolation) for CUBICSPLINE tracks. Each
  // keyframe track will be initialized with a default interpolation type, then modified.
  LINEAR: _three.InterpolateLinear,
  STEP: _three.InterpolateDiscrete
};
var ALPHA_MODES = {
  OPAQUE: 'OPAQUE',
  MASK: 'MASK',
  BLEND: 'BLEND'
};
/**
 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material
 */

function createDefaultMaterial(cache) {
  if (cache['DefaultMaterial'] === undefined) {
    cache['DefaultMaterial'] = new _three.MeshStandardMaterial({
      color: 0xFFFFFF,
      emissive: 0x000000,
      metalness: 1,
      roughness: 1,
      transparent: false,
      depthTest: true,
      side: _three.FrontSide
    });
  }

  return cache['DefaultMaterial'];
}

function addUnknownExtensionsToUserData(knownExtensions, object, objectDef) {
  // Add unknown glTF extensions to an object's userData.
  for (var name in objectDef.extensions) {
    if (knownExtensions[name] === undefined) {
      object.userData.gltfExtensions = object.userData.gltfExtensions || {};
      object.userData.gltfExtensions[name] = objectDef.extensions[name];
    }
  }
}
/**
 * @param {Object3D|Material|BufferGeometry} object
 * @param {GLTF.definition} gltfDef
 */


function assignExtrasToUserData(object, gltfDef) {
  if (gltfDef.extras !== undefined) {
    if ((0, _typeof2["default"])(gltfDef.extras) === 'object') {
      Object.assign(object.userData, gltfDef.extras);
    } else {
      console.warn('THREE.GLTFLoader: Ignoring primitive type .extras, ' + gltfDef.extras);
    }
  }
}
/**
 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#morph-targets
 *
 * @param {BufferGeometry} geometry
 * @param {Array<GLTF.Target>} targets
 * @param {GLTFParser} parser
 * @return {Promise<BufferGeometry>}
 */


function addMorphTargets(geometry, targets, parser) {
  var hasMorphPosition = false;
  var hasMorphNormal = false;

  for (var i = 0, il = targets.length; i < il; i++) {
    var target = targets[i];
    if (target.POSITION !== undefined) hasMorphPosition = true;
    if (target.NORMAL !== undefined) hasMorphNormal = true;
    if (hasMorphPosition && hasMorphNormal) break;
  }

  if (!hasMorphPosition && !hasMorphNormal) return Promise.resolve(geometry);
  var pendingPositionAccessors = [];
  var pendingNormalAccessors = [];

  for (var _i2 = 0, _il = targets.length; _i2 < _il; _i2++) {
    var _target = targets[_i2];

    if (hasMorphPosition) {
      var pendingAccessor = _target.POSITION !== undefined ? parser.getDependency('accessor', _target.POSITION) : geometry.attributes.position;
      pendingPositionAccessors.push(pendingAccessor);
    }

    if (hasMorphNormal) {
      var _pendingAccessor = _target.NORMAL !== undefined ? parser.getDependency('accessor', _target.NORMAL) : geometry.attributes.normal;

      pendingNormalAccessors.push(_pendingAccessor);
    }
  }

  return Promise.all([Promise.all(pendingPositionAccessors), Promise.all(pendingNormalAccessors)]).then(function (accessors) {
    var morphPositions = accessors[0];
    var morphNormals = accessors[1];
    if (hasMorphPosition) geometry.morphAttributes.position = morphPositions;
    if (hasMorphNormal) geometry.morphAttributes.normal = morphNormals;
    geometry.morphTargetsRelative = true;
    return geometry;
  });
}
/**
 * @param {Mesh} mesh
 * @param {GLTF.Mesh} meshDef
 */


function updateMorphTargets(mesh, meshDef) {
  mesh.updateMorphTargets();

  if (meshDef.weights !== undefined) {
    for (var i = 0, il = meshDef.weights.length; i < il; i++) {
      mesh.morphTargetInfluences[i] = meshDef.weights[i];
    }
  } // .extras has user-defined data, so check that .extras.targetNames is an array.


  if (meshDef.extras && Array.isArray(meshDef.extras.targetNames)) {
    var targetNames = meshDef.extras.targetNames;

    if (mesh.morphTargetInfluences.length === targetNames.length) {
      mesh.morphTargetDictionary = {};

      for (var _i3 = 0, _il2 = targetNames.length; _i3 < _il2; _i3++) {
        mesh.morphTargetDictionary[targetNames[_i3]] = _i3;
      }
    } else {
      console.warn('THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.');
    }
  }
}

function createPrimitiveKey(primitiveDef) {
  var dracoExtension = primitiveDef.extensions && primitiveDef.extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION];
  var geometryKey;

  if (dracoExtension) {
    geometryKey = 'draco:' + dracoExtension.bufferView + ':' + dracoExtension.indices + ':' + createAttributesKey(dracoExtension.attributes);
  } else {
    geometryKey = primitiveDef.indices + ':' + createAttributesKey(primitiveDef.attributes) + ':' + primitiveDef.mode;
  }

  return geometryKey;
}

function createAttributesKey(attributes) {
  var attributesKey = '';
  var keys = Object.keys(attributes).sort();

  for (var i = 0, il = keys.length; i < il; i++) {
    attributesKey += keys[i] + ':' + attributes[keys[i]] + ';';
  }

  return attributesKey;
}

function getNormalizedComponentScale(constructor) {
  // Reference:
  // https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization#encoding-quantized-data
  switch (constructor) {
    case Int8Array:
      return 1 / 127;

    case Uint8Array:
      return 1 / 255;

    case Int16Array:
      return 1 / 32767;

    case Uint16Array:
      return 1 / 65535;

    default:
      throw new Error('THREE.GLTFLoader: Unsupported normalized accessor component type.');
  }
}
/* GLTF PARSER */


var GLTFParser = /*#__PURE__*/function () {
  function GLTFParser() {
    var json = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, GLTFParser);
    this.json = json;
    this.extensions = {};
    this.plugins = {};
    this.options = options; // loader object cache

    this.cache = new GLTFRegistry(); // associations between Three.js objects and glTF elements

    this.associations = new Map(); // BufferGeometry caching

    this.primitiveCache = {}; // Object3D instance caches

    this.meshCache = {
      refs: {},
      uses: {}
    };
    this.cameraCache = {
      refs: {},
      uses: {}
    };
    this.lightCache = {
      refs: {},
      uses: {}
    };
    this.textureCache = {}; // Track node names, to ensure no duplicates

    this.nodeNamesUsed = {}; // Use an ImageBitmapLoader if imageBitmaps are supported. Moves much of the
    // expensive work of uploading a texture to the GPU off the main thread.

    if (typeof createImageBitmap !== 'undefined' && /Firefox|^((?!chrome|android).)*safari/i.test(navigator.userAgent) === false) {
      this.textureLoader = new _three.ImageBitmapLoader(this.options.manager);
    } else {
      this.textureLoader = new _three.TextureLoader(this.options.manager);
    }

    this.textureLoader.setCrossOrigin(this.options.crossOrigin);
    this.textureLoader.setRequestHeader(this.options.requestHeader);
    this.fileLoader = new _three.FileLoader(this.options.manager);
    this.fileLoader.setResponseType('arraybuffer');

    if (this.options.crossOrigin === 'use-credentials') {
      this.fileLoader.setWithCredentials(true);
    }
  }

  (0, _createClass2["default"])(GLTFParser, [{
    key: "setExtensions",
    value: function setExtensions(extensions) {
      this.extensions = extensions;
    }
  }, {
    key: "setPlugins",
    value: function setPlugins(plugins) {
      this.plugins = plugins;
    }
  }, {
    key: "parse",
    value: function parse(onLoad, onError) {
      var parser = this;
      var json = this.json;
      var extensions = this.extensions; // Clear the loader cache

      this.cache.removeAll(); // Mark the special nodes/meshes in json for efficient parse

      this._invokeAll(function (ext) {
        return ext._markDefs && ext._markDefs();
      });

      Promise.all(this._invokeAll(function (ext) {
        return ext.beforeRoot && ext.beforeRoot();
      })).then(function () {
        return Promise.all([parser.getDependencies('scene'), parser.getDependencies('animation'), parser.getDependencies('camera')]);
      }).then(function (dependencies) {
        var result = {
          scene: dependencies[0][json.scene || 0],
          scenes: dependencies[0],
          animations: dependencies[1],
          cameras: dependencies[2],
          asset: json.asset,
          parser: parser,
          userData: {}
        };
        addUnknownExtensionsToUserData(extensions, result, json);
        assignExtrasToUserData(result, json);
        Promise.all(parser._invokeAll(function (ext) {
          return ext.afterRoot && ext.afterRoot(result);
        })).then(function () {
          onLoad(result);
        });
      })["catch"](onError);
    }
    /**
     * Marks the special nodes/meshes in json for efficient parse.
     */

  }, {
    key: "_markDefs",
    value: function _markDefs() {
      var nodeDefs = this.json.nodes || [];
      var skinDefs = this.json.skins || [];
      var meshDefs = this.json.meshes || []; // Nothing in the node definition indicates whether it is a Bone or an
      // Object3D. Use the skins' joint references to mark bones.

      for (var skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex++) {
        var joints = skinDefs[skinIndex].joints;

        for (var i = 0, il = joints.length; i < il; i++) {
          nodeDefs[joints[i]].isBone = true;
        }
      } // Iterate over all nodes, marking references to shared resources,
      // as well as skeleton joints.


      for (var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex++) {
        var nodeDef = nodeDefs[nodeIndex];

        if (nodeDef.mesh !== undefined) {
          this._addNodeRef(this.meshCache, nodeDef.mesh); // Nothing in the mesh definition indicates whether it is
          // a SkinnedMesh or Mesh. Use the node's mesh reference
          // to mark SkinnedMesh if node has skin.


          if (nodeDef.skin !== undefined) {
            meshDefs[nodeDef.mesh].isSkinnedMesh = true;
          }
        }

        if (nodeDef.camera !== undefined) {
          this._addNodeRef(this.cameraCache, nodeDef.camera);
        }
      }
    }
    /**
     * Counts references to shared node / Object3D resources. These resources
     * can be reused, or "instantiated", at multiple nodes in the scene
     * hierarchy. Mesh, Camera, and Light instances are instantiated and must
     * be marked. Non-scenegraph resources (like Materials, Geometries, and
     * Textures) can be reused directly and are not marked here.
     *
     * Example: CesiumMilkTruck sample model reuses "Wheel" meshes.
     */

  }, {
    key: "_addNodeRef",
    value: function _addNodeRef(cache, index) {
      if (index === undefined) return;

      if (cache.refs[index] === undefined) {
        cache.refs[index] = cache.uses[index] = 0;
      }

      cache.refs[index]++;
    }
    /** Returns a reference to a shared resource, cloning it if necessary. */

  }, {
    key: "_getNodeRef",
    value: function _getNodeRef(cache, index, object) {
      var _this3 = this;

      if (cache.refs[index] <= 1) return object;
      var ref = object.clone(); // Propagates mappings to the cloned object, prevents mappings on the
      // original object from being lost.

      var updateMappings = function (original, clone) {
        var mappings = _this3.associations.get(original);

        if (mappings != null) {
          _this3.associations.set(clone, mappings);
        }

        var _iterator = _createForOfIteratorHelper(original.children.entries()),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var _step$value = (0, _slicedToArray2["default"])(_step.value, 2),
                i = _step$value[0],
                child = _step$value[1];

            updateMappings(child, clone.children[i]);
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      };

      updateMappings(object, ref);
      ref.name += '_instance_' + cache.uses[index]++;
      return ref;
    }
  }, {
    key: "_invokeOne",
    value: function _invokeOne(func) {
      var extensions = Object.values(this.plugins);
      extensions.push(this);

      for (var i = 0; i < extensions.length; i++) {
        var result = func(extensions[i]);
        if (result) return result;
      }

      return null;
    }
  }, {
    key: "_invokeAll",
    value: function _invokeAll(func) {
      var extensions = Object.values(this.plugins);
      extensions.unshift(this);
      var pending = [];

      for (var i = 0; i < extensions.length; i++) {
        var result = func(extensions[i]);
        if (result) pending.push(result);
      }

      return pending;
    }
    /**
     * Requests the specified dependency asynchronously, with caching.
     * @param {string} type
     * @param {number} index
     * @return {Promise<Object3D|Material|THREE.Texture|AnimationClip|ArrayBuffer|Object>}
     */

  }, {
    key: "getDependency",
    value: function getDependency(type, index) {
      var cacheKey = type + ':' + index;
      var dependency = this.cache.get(cacheKey);

      if (!dependency) {
        switch (type) {
          case 'scene':
            dependency = this.loadScene(index);
            break;

          case 'node':
            dependency = this.loadNode(index);
            break;

          case 'mesh':
            dependency = this._invokeOne(function (ext) {
              return ext.loadMesh && ext.loadMesh(index);
            });
            break;

          case 'accessor':
            dependency = this.loadAccessor(index);
            break;

          case 'bufferView':
            dependency = this._invokeOne(function (ext) {
              return ext.loadBufferView && ext.loadBufferView(index);
            });
            break;

          case 'buffer':
            dependency = this.loadBuffer(index);
            break;

          case 'material':
            dependency = this._invokeOne(function (ext) {
              return ext.loadMaterial && ext.loadMaterial(index);
            });
            break;

          case 'texture':
            dependency = this._invokeOne(function (ext) {
              return ext.loadTexture && ext.loadTexture(index);
            });
            break;

          case 'skin':
            dependency = this.loadSkin(index);
            break;

          case 'animation':
            dependency = this.loadAnimation(index);
            break;

          case 'camera':
            dependency = this.loadCamera(index);
            break;

          default:
            throw new Error('Unknown type: ' + type);
        }

        this.cache.add(cacheKey, dependency);
      }

      return dependency;
    }
    /**
     * Requests all dependencies of the specified type asynchronously, with caching.
     * @param {string} type
     * @return {Promise<Array<Object>>}
     */

  }, {
    key: "getDependencies",
    value: function getDependencies(type) {
      var dependencies = this.cache.get(type);

      if (!dependencies) {
        var parser = this;
        var defs = this.json[type + (type === 'mesh' ? 'es' : 's')] || [];
        dependencies = Promise.all(defs.map(function (def, index) {
          return parser.getDependency(type, index);
        }));
        this.cache.add(type, dependencies);
      }

      return dependencies;
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
     * @param {number} bufferIndex
     * @return {Promise<ArrayBuffer>}
     */

  }, {
    key: "loadBuffer",
    value: function loadBuffer(bufferIndex) {
      var bufferDef = this.json.buffers[bufferIndex];
      var loader = this.fileLoader;

      if (bufferDef.type && bufferDef.type !== 'arraybuffer') {
        throw new Error('THREE.GLTFLoader: ' + bufferDef.type + ' buffer type is not supported.');
      } // If present, GLB container is required to be the first buffer.


      if (bufferDef.uri === undefined && bufferIndex === 0) {
        return Promise.resolve(this.extensions[EXTENSIONS.KHR_BINARY_GLTF].body);
      }

      var options = this.options;
      return new Promise(function (resolve, reject) {
        loader.load(_three.LoaderUtils.resolveURL(bufferDef.uri, options.path), resolve, undefined, function () {
          reject(new Error('THREE.GLTFLoader: Failed to load buffer "' + bufferDef.uri + '".'));
        });
      });
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
     * @param {number} bufferViewIndex
     * @return {Promise<ArrayBuffer>}
     */

  }, {
    key: "loadBufferView",
    value: function loadBufferView(bufferViewIndex) {
      var bufferViewDef = this.json.bufferViews[bufferViewIndex];
      return this.getDependency('buffer', bufferViewDef.buffer).then(function (buffer) {
        var byteLength = bufferViewDef.byteLength || 0;
        var byteOffset = bufferViewDef.byteOffset || 0;
        return buffer.slice(byteOffset, byteOffset + byteLength);
      });
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors
     * @param {number} accessorIndex
     * @return {Promise<BufferAttribute|InterleavedBufferAttribute>}
     */

  }, {
    key: "loadAccessor",
    value: function loadAccessor(accessorIndex) {
      var parser = this;
      var json = this.json;
      var accessorDef = this.json.accessors[accessorIndex];

      if (accessorDef.bufferView === undefined && accessorDef.sparse === undefined) {
        // Ignore empty accessors, which may be used to declare runtime
        // information about attributes coming from another source (e.g. Draco
        // compression extension).
        return Promise.resolve(null);
      }

      var pendingBufferViews = [];

      if (accessorDef.bufferView !== undefined) {
        pendingBufferViews.push(this.getDependency('bufferView', accessorDef.bufferView));
      } else {
        pendingBufferViews.push(null);
      }

      if (accessorDef.sparse !== undefined) {
        pendingBufferViews.push(this.getDependency('bufferView', accessorDef.sparse.indices.bufferView));
        pendingBufferViews.push(this.getDependency('bufferView', accessorDef.sparse.values.bufferView));
      }

      return Promise.all(pendingBufferViews).then(function (bufferViews) {
        var bufferView = bufferViews[0];
        var itemSize = WEBGL_TYPE_SIZES[accessorDef.type];
        var TypedArray = WEBGL_COMPONENT_TYPES[accessorDef.componentType]; // For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.

        var elementBytes = TypedArray.BYTES_PER_ELEMENT;
        var byteOffset = accessorDef.byteOffset || 0;
        var byteStride = accessorDef.bufferView !== undefined ? json.bufferViews[accessorDef.bufferView].byteStride : undefined;
        var normalized = accessorDef.normalized === true;
        var array, bufferAttribute; // The buffer is not interleaved if the stride is the item size in bytes.

        if (byteStride && byteStride !== elementBytes * itemSize) {
          // Each "slice" of the buffer, as defined by 'count' elements of 'byteStride' bytes, gets its own InterleavedBuffer
          // This makes sure that IBA.count reflects accessor.count properly
          var ibSlice = Math.floor(byteOffset / byteStride);
          var ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType + ':' + ibSlice + ':' + accessorDef.count;
          var ib = parser.cache.get(ibCacheKey);

          if (!ib) {
            array = new TypedArray(bufferView, ibSlice * byteStride, accessorDef.count * byteStride / elementBytes); // Integer parameters to IB/IBA are in array elements, not bytes.

            ib = new _three.InterleavedBuffer(array, byteStride / elementBytes);
            parser.cache.add(ibCacheKey, ib);
          }

          bufferAttribute = new _three.InterleavedBufferAttribute(ib, itemSize, byteOffset % byteStride / elementBytes, normalized);
        } else {
          if (bufferView === null) {
            array = new TypedArray(accessorDef.count * itemSize);
          } else {
            array = new TypedArray(bufferView, byteOffset, accessorDef.count * itemSize);
          }

          bufferAttribute = new _three.BufferAttribute(array, itemSize, normalized);
        } // https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#sparse-accessors


        if (accessorDef.sparse !== undefined) {
          var itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
          var TypedArrayIndices = WEBGL_COMPONENT_TYPES[accessorDef.sparse.indices.componentType];
          var byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
          var byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;
          var sparseIndices = new TypedArrayIndices(bufferViews[1], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices);
          var sparseValues = new TypedArray(bufferViews[2], byteOffsetValues, accessorDef.sparse.count * itemSize);

          if (bufferView !== null) {
            // Avoid modifying the original ArrayBuffer, if the bufferView wasn't initialized with zeroes.
            bufferAttribute = new _three.BufferAttribute(bufferAttribute.array.slice(), bufferAttribute.itemSize, bufferAttribute.normalized);
          }

          for (var i = 0, il = sparseIndices.length; i < il; i++) {
            var index = sparseIndices[i];
            bufferAttribute.setX(index, sparseValues[i * itemSize]);
            if (itemSize >= 2) bufferAttribute.setY(index, sparseValues[i * itemSize + 1]);
            if (itemSize >= 3) bufferAttribute.setZ(index, sparseValues[i * itemSize + 2]);
            if (itemSize >= 4) bufferAttribute.setW(index, sparseValues[i * itemSize + 3]);
            if (itemSize >= 5) throw new Error('THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.');
          }
        }

        return bufferAttribute;
      });
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures
     * @param {number} textureIndex
     * @return {Promise<THREE.Texture>}
     */

  }, {
    key: "loadTexture",
    value: function loadTexture(textureIndex) {
      var json = this.json;
      var options = this.options;
      var textureDef = json.textures[textureIndex];
      var source = json.images[textureDef.source];
      var loader = this.textureLoader;

      if (source.uri) {
        var handler = options.manager.getHandler(source.uri);
        if (handler !== null) loader = handler;
      }

      return this.loadTextureImage(textureIndex, source, loader);
    }
  }, {
    key: "loadTextureImage",
    value: function loadTextureImage(textureIndex, source, loader) {
      var parser = this;
      var json = this.json;
      var options = this.options;
      var textureDef = json.textures[textureIndex];
      var cacheKey = (source.uri || source.bufferView) + ':' + textureDef.sampler;

      if (this.textureCache[cacheKey]) {
        // See https://github.com/mrdoob/three.js/issues/21559.
        return this.textureCache[cacheKey];
      }

      var URL = self.URL || self.webkitURL;
      var sourceURI = source.uri || '';
      var isObjectURL = false;

      if (source.bufferView !== undefined) {
        // Load binary image data from bufferView, if provided.
        sourceURI = parser.getDependency('bufferView', source.bufferView).then(function (bufferView) {
          isObjectURL = true;
          var blob = new Blob([bufferView], {
            type: source.mimeType
          });
          sourceURI = URL.createObjectURL(blob);
          return sourceURI;
        });
      } else if (source.uri === undefined) {
        throw new Error('THREE.GLTFLoader: Image ' + textureIndex + ' is missing URI and bufferView');
      }

      var promise = Promise.resolve(sourceURI).then(function (sourceURI) {
        return new Promise(function (resolve, reject) {
          var onLoad = resolve;

          if (loader.isImageBitmapLoader === true) {
            onLoad = function (imageBitmap) {
              var texture = new _three.Texture(imageBitmap);
              texture.needsUpdate = true;
              resolve(texture);
            };
          }

          loader.load(_three.LoaderUtils.resolveURL(sourceURI, options.path), onLoad, undefined, reject);
        });
      }).then(function (texture) {
        // Clean up resources and configure Texture.
        if (isObjectURL === true) {
          URL.revokeObjectURL(sourceURI);
        }

        texture.flipY = false;
        if (textureDef.name) texture.name = textureDef.name;
        var samplers = json.samplers || {};
        var sampler = samplers[textureDef.sampler] || {};
        texture.magFilter = WEBGL_FILTERS[sampler.magFilter] || _three.LinearFilter;
        texture.minFilter = WEBGL_FILTERS[sampler.minFilter] || _three.LinearMipmapLinearFilter;
        texture.wrapS = WEBGL_WRAPPINGS[sampler.wrapS] || _three.RepeatWrapping;
        texture.wrapT = WEBGL_WRAPPINGS[sampler.wrapT] || _three.RepeatWrapping;
        parser.associations.set(texture, {
          textures: textureIndex
        });
        return texture;
      })["catch"](function () {
        console.error('THREE.GLTFLoader: Couldn\'t load texture', sourceURI);
        return null;
      });
      this.textureCache[cacheKey] = promise;
      return promise;
    }
    /**
     * Asynchronously assigns a texture to the given material parameters.
     * @param {Object} materialParams
     * @param {string} mapName
     * @param {Object} mapDef
     * @return {Promise<Texture>}
     */

  }, {
    key: "assignTexture",
    value: function assignTexture(materialParams, mapName, mapDef) {
      var parser = this;
      return this.getDependency('texture', mapDef.index).then(function (texture) {
        // Materials sample aoMap from UV set 1 and other maps from UV set 0 - this can't be configured
        // However, we will copy UV set 0 to UV set 1 on demand for aoMap
        if (mapDef.texCoord !== undefined && mapDef.texCoord != 0 && !(mapName === 'aoMap' && mapDef.texCoord == 1)) {
          console.warn('THREE.GLTFLoader: Custom UV set ' + mapDef.texCoord + ' for texture ' + mapName + ' not yet supported.');
        }

        if (parser.extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM]) {
          var transform = mapDef.extensions !== undefined ? mapDef.extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM] : undefined;

          if (transform) {
            var gltfReference = parser.associations.get(texture);
            texture = parser.extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM].extendTexture(texture, transform);
            parser.associations.set(texture, gltfReference);
          }
        }

        materialParams[mapName] = texture;
        return texture;
      });
    }
    /**
     * Assigns final material to a Mesh, Line, or Points instance. The instance
     * already has a material (generated from the glTF material options alone)
     * but reuse of the same glTF material may require multiple threejs materials
     * to accommodate different primitive types, defines, etc. New materials will
     * be created if necessary, and reused from a cache.
     * @param  {Object3D} mesh Mesh, Line, or Points instance.
     */

  }, {
    key: "assignFinalMaterial",
    value: function assignFinalMaterial(mesh) {
      var geometry = mesh.geometry;
      var material = mesh.material;
      var useDerivativeTangents = geometry.attributes.tangent === undefined;
      var useVertexColors = geometry.attributes.color !== undefined;
      var useFlatShading = geometry.attributes.normal === undefined;

      if (mesh.isPoints) {
        var cacheKey = 'PointsMaterial:' + material.uuid;
        var pointsMaterial = this.cache.get(cacheKey);

        if (!pointsMaterial) {
          pointsMaterial = new _three.PointsMaterial();

          _three.Material.prototype.copy.call(pointsMaterial, material);

          pointsMaterial.color.copy(material.color);
          pointsMaterial.map = material.map;
          pointsMaterial.sizeAttenuation = false; // glTF spec says points should be 1px

          this.cache.add(cacheKey, pointsMaterial);
        }

        material = pointsMaterial;
      } else if (mesh.isLine) {
        var _cacheKey = 'LineBasicMaterial:' + material.uuid;

        var lineMaterial = this.cache.get(_cacheKey);

        if (!lineMaterial) {
          lineMaterial = new _three.LineBasicMaterial();

          _three.Material.prototype.copy.call(lineMaterial, material);

          lineMaterial.color.copy(material.color);
          this.cache.add(_cacheKey, lineMaterial);
        }

        material = lineMaterial;
      } // Clone the material if it will be modified


      if (useDerivativeTangents || useVertexColors || useFlatShading) {
        var _cacheKey2 = 'ClonedMaterial:' + material.uuid + ':';

        if (material.isGLTFSpecularGlossinessMaterial) _cacheKey2 += 'specular-glossiness:';
        if (useDerivativeTangents) _cacheKey2 += 'derivative-tangents:';
        if (useVertexColors) _cacheKey2 += 'vertex-colors:';
        if (useFlatShading) _cacheKey2 += 'flat-shading:';
        var cachedMaterial = this.cache.get(_cacheKey2);

        if (!cachedMaterial) {
          cachedMaterial = material.clone();
          if (useVertexColors) cachedMaterial.vertexColors = true;
          if (useFlatShading) cachedMaterial.flatShading = true;

          if (useDerivativeTangents) {
            // https://github.com/mrdoob/three.js/issues/11438#issuecomment-507003995
            if (cachedMaterial.normalScale) cachedMaterial.normalScale.y *= -1;
            if (cachedMaterial.clearcoatNormalScale) cachedMaterial.clearcoatNormalScale.y *= -1;
          }

          this.cache.add(_cacheKey2, cachedMaterial);
          this.associations.set(cachedMaterial, this.associations.get(material));
        }

        material = cachedMaterial;
      } // workarounds for mesh and geometry


      if (material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined) {
        geometry.setAttribute('uv2', geometry.attributes.uv);
      }

      mesh.material = material;
    }
  }, {
    key: "getMaterialType",
    value: function
      /* materialIndex */
    getMaterialType() {
      return _three.MeshStandardMaterial;
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
     * @param {number} materialIndex
     * @return {Promise<Material>}
     */

  }, {
    key: "loadMaterial",
    value: function loadMaterial(materialIndex) {
      var parser = this;
      var json = this.json;
      var extensions = this.extensions;
      var materialDef = json.materials[materialIndex];
      var materialType;
      var materialParams = {};
      var materialExtensions = materialDef.extensions || {};
      var pending = [];

      if (materialExtensions[EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS]) {
        var sgExtension = extensions[EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS];
        materialType = sgExtension.getMaterialType();
        pending.push(sgExtension.extendParams(materialParams, materialDef, parser));
      } else if (materialExtensions[EXTENSIONS.KHR_MATERIALS_UNLIT]) {
        var kmuExtension = extensions[EXTENSIONS.KHR_MATERIALS_UNLIT];
        materialType = kmuExtension.getMaterialType();
        pending.push(kmuExtension.extendParams(materialParams, materialDef, parser));
      } else {
        // Specification:
        // https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material
        var metallicRoughness = materialDef.pbrMetallicRoughness || {};
        materialParams.color = new _three.Color(1.0, 1.0, 1.0);
        materialParams.opacity = 1.0;

        if (Array.isArray(metallicRoughness.baseColorFactor)) {
          var array = metallicRoughness.baseColorFactor;
          materialParams.color.fromArray(array);
          materialParams.opacity = array[3];
        }

        if (metallicRoughness.baseColorTexture !== undefined) {
          pending.push(parser.assignTexture(materialParams, 'map', metallicRoughness.baseColorTexture));
        }

        materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;
        materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;

        if (metallicRoughness.metallicRoughnessTexture !== undefined) {
          pending.push(parser.assignTexture(materialParams, 'metalnessMap', metallicRoughness.metallicRoughnessTexture));
          pending.push(parser.assignTexture(materialParams, 'roughnessMap', metallicRoughness.metallicRoughnessTexture));
        }

        materialType = this._invokeOne(function (ext) {
          return ext.getMaterialType && ext.getMaterialType(materialIndex);
        });
        pending.push(Promise.all(this._invokeAll(function (ext) {
          return ext.extendMaterialParams && ext.extendMaterialParams(materialIndex, materialParams);
        })));
      }

      if (materialDef.doubleSided === true) {
        materialParams.side = _three.DoubleSide;
      }

      var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;

      if (alphaMode === ALPHA_MODES.BLEND) {
        materialParams.transparent = true; // See: https://github.com/mrdoob/three.js/issues/17706

        materialParams.depthWrite = false;
      } else {
        materialParams.transparent = false;

        if (alphaMode === ALPHA_MODES.MASK) {
          materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5;
        }
      }

      if (materialDef.normalTexture !== undefined && materialType !== _three.MeshBasicMaterial) {
        pending.push(parser.assignTexture(materialParams, 'normalMap', materialDef.normalTexture));
        materialParams.normalScale = new _three.Vector2(1, 1);

        if (materialDef.normalTexture.scale !== undefined) {
          var scale = materialDef.normalTexture.scale;
          materialParams.normalScale.set(scale, scale);
        }
      }

      if (materialDef.occlusionTexture !== undefined && materialType !== _three.MeshBasicMaterial) {
        pending.push(parser.assignTexture(materialParams, 'aoMap', materialDef.occlusionTexture));

        if (materialDef.occlusionTexture.strength !== undefined) {
          materialParams.aoMapIntensity = materialDef.occlusionTexture.strength;
        }
      }

      if (materialDef.emissiveFactor !== undefined && materialType !== _three.MeshBasicMaterial) {
        materialParams.emissive = new _three.Color().fromArray(materialDef.emissiveFactor);
      }

      if (materialDef.emissiveTexture !== undefined && materialType !== _three.MeshBasicMaterial) {
        pending.push(parser.assignTexture(materialParams, 'emissiveMap', materialDef.emissiveTexture));
      }

      return Promise.all(pending).then(function () {
        var material;

        if (materialType === GLTFMeshStandardSGMaterial) {
          material = extensions[EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS].createMaterial(materialParams);
        } else {
          material = new materialType(materialParams);
        }

        if (materialDef.name) material.name = materialDef.name; // baseColorTexture, emissiveTexture, and specularGlossinessTexture use sRGB encoding.

        if (material.map) material.map.encoding = _three.sRGBEncoding;
        if (material.emissiveMap) material.emissiveMap.encoding = _three.sRGBEncoding;
        assignExtrasToUserData(material, materialDef);
        parser.associations.set(material, {
          materials: materialIndex
        });
        if (materialDef.extensions) addUnknownExtensionsToUserData(extensions, material, materialDef);
        return material;
      });
    }
    /** When Object3D instances are targeted by animation, they need unique names. */

  }, {
    key: "createUniqueName",
    value: function createUniqueName(originalName) {
      var sanitizedName = _three.PropertyBinding.sanitizeNodeName(originalName || '');

      var name = sanitizedName;

      for (var i = 1; this.nodeNamesUsed[name]; ++i) {
        name = sanitizedName + '_' + i;
      }

      this.nodeNamesUsed[name] = true;
      return name;
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry
     *
     * Creates BufferGeometries from primitives.
     *
     * @param {Array<GLTF.Primitive>} primitives
     * @return {Promise<Array<BufferGeometry>>}
     */

  }, {
    key: "loadGeometries",
    value: function loadGeometries(primitives) {
      var parser = this;
      var extensions = this.extensions;
      var cache = this.primitiveCache;

      function createDracoPrimitive(primitive) {
        return extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION].decodePrimitive(primitive, parser).then(function (geometry) {
          return addPrimitiveAttributes(geometry, primitive, parser);
        });
      }

      var pending = [];

      for (var i = 0, il = primitives.length; i < il; i++) {
        var primitive = primitives[i];
        var cacheKey = createPrimitiveKey(primitive); // See if we've already created this geometry

        var cached = cache[cacheKey];

        if (cached) {
          // Use the cached geometry if it exists
          pending.push(cached.promise);
        } else {
          var geometryPromise = void 0;

          if (primitive.extensions && primitive.extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION]) {
            // Use DRACO geometry if available
            geometryPromise = createDracoPrimitive(primitive);
          } else {
            // Otherwise create a new geometry
            geometryPromise = addPrimitiveAttributes(new _three.BufferGeometry(), primitive, parser);
          } // Cache this geometry


          cache[cacheKey] = {
            primitive: primitive,
            promise: geometryPromise
          };
          pending.push(geometryPromise);
        }
      }

      return Promise.all(pending);
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes
     * @param {number} meshIndex
     * @return {Promise<Group|Mesh|SkinnedMesh>}
     */

  }, {
    key: "loadMesh",
    value: function loadMesh(meshIndex) {
      var parser = this;
      var json = this.json;
      var extensions = this.extensions;
      var meshDef = json.meshes[meshIndex];
      var primitives = meshDef.primitives;
      var pending = [];

      for (var i = 0, il = primitives.length; i < il; i++) {
        var material = primitives[i].material === undefined ? createDefaultMaterial(this.cache) : this.getDependency('material', primitives[i].material);
        pending.push(material);
      }

      pending.push(parser.loadGeometries(primitives));
      return Promise.all(pending).then(function (results) {
        var materials = results.slice(0, results.length - 1);
        var geometries = results[results.length - 1];
        var meshes = [];

        for (var _i4 = 0, _il3 = geometries.length; _i4 < _il3; _i4++) {
          var geometry = geometries[_i4];
          var primitive = primitives[_i4]; // 1. create Mesh

          var mesh = void 0;
          var _material = materials[_i4];

          if (primitive.mode === WEBGL_CONSTANTS.TRIANGLES || primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP || primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN || primitive.mode === undefined) {
            // .isSkinnedMesh isn't in glTF spec. See ._markDefs()
            mesh = meshDef.isSkinnedMesh === true ? new _three.SkinnedMesh(geometry, _material) : new _three.Mesh(geometry, _material);

            if (mesh.isSkinnedMesh === true && !mesh.geometry.attributes.skinWeight.normalized) {
              // we normalize floating point skin weight array to fix malformed assets (see #15319)
              // it's important to skip this for non-float32 data since normalizeSkinWeights assumes non-normalized inputs
              mesh.normalizeSkinWeights();
            }

            if (primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP) {
              mesh.geometry = toTrianglesDrawMode(mesh.geometry, _three.TriangleStripDrawMode);
            } else if (primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN) {
              mesh.geometry = toTrianglesDrawMode(mesh.geometry, _three.TriangleFanDrawMode);
            }
          } else if (primitive.mode === WEBGL_CONSTANTS.LINES) {
            mesh = new _three.LineSegments(geometry, _material);
          } else if (primitive.mode === WEBGL_CONSTANTS.LINE_STRIP) {
            mesh = new _three.Line(geometry, _material);
          } else if (primitive.mode === WEBGL_CONSTANTS.LINE_LOOP) {
            mesh = new _three.LineLoop(geometry, _material);
          } else if (primitive.mode === WEBGL_CONSTANTS.POINTS) {
            mesh = new _three.Points(geometry, _material);
          } else {
            throw new Error('THREE.GLTFLoader: Primitive mode unsupported: ' + primitive.mode);
          }

          if (Object.keys(mesh.geometry.morphAttributes).length > 0) {
            updateMorphTargets(mesh, meshDef);
          }

          mesh.name = parser.createUniqueName(meshDef.name || 'mesh_' + meshIndex);
          assignExtrasToUserData(mesh, meshDef);
          if (primitive.extensions) addUnknownExtensionsToUserData(extensions, mesh, primitive);
          parser.assignFinalMaterial(mesh);
          meshes.push(mesh);
        }

        for (var _i5 = 0, _il4 = meshes.length; _i5 < _il4; _i5++) {
          parser.associations.set(meshes[_i5], {
            meshes: meshIndex,
            primitives: _i5
          });
        }

        if (meshes.length === 1) {
          return meshes[0];
        }

        var group = new _three.Group();
        parser.associations.set(group, {
          meshes: meshIndex
        });

        for (var _i6 = 0, _il5 = meshes.length; _i6 < _il5; _i6++) {
          group.add(meshes[_i6]);
        }

        return group;
      });
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras
     * @param {number} cameraIndex
     * @return {Promise<THREE.Camera>}
     */

  }, {
    key: "loadCamera",
    value: function loadCamera(cameraIndex) {
      var camera;
      var cameraDef = this.json.cameras[cameraIndex];
      var params = cameraDef[cameraDef.type];

      if (!params) {
        console.warn('THREE.GLTFLoader: Missing camera parameters.');
        return;
      }

      if (cameraDef.type === 'perspective') {
        camera = new _three.PerspectiveCamera(_three.MathUtils.radToDeg(params.yfov), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6);
      } else if (cameraDef.type === 'orthographic') {
        camera = new _three.OrthographicCamera(-params.xmag, params.xmag, params.ymag, -params.ymag, params.znear, params.zfar);
      }

      if (cameraDef.name) camera.name = this.createUniqueName(cameraDef.name);
      assignExtrasToUserData(camera, cameraDef);
      return Promise.resolve(camera);
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins
     * @param {number} skinIndex
     * @return {Promise<Object>}
     */

  }, {
    key: "loadSkin",
    value: function loadSkin(skinIndex) {
      var skinDef = this.json.skins[skinIndex];
      var skinEntry = {
        joints: skinDef.joints
      };

      if (skinDef.inverseBindMatrices === undefined) {
        return Promise.resolve(skinEntry);
      }

      return this.getDependency('accessor', skinDef.inverseBindMatrices).then(function (accessor) {
        skinEntry.inverseBindMatrices = accessor;
        return skinEntry;
      });
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations
     * @param {number} animationIndex
     * @return {Promise<AnimationClip>}
     */

  }, {
    key: "loadAnimation",
    value: function loadAnimation(animationIndex) {
      var json = this.json;
      var animationDef = json.animations[animationIndex];
      var pendingNodes = [];
      var pendingInputAccessors = [];
      var pendingOutputAccessors = [];
      var pendingSamplers = [];
      var pendingTargets = [];

      for (var i = 0, il = animationDef.channels.length; i < il; i++) {
        var channel = animationDef.channels[i];
        var sampler = animationDef.samplers[channel.sampler];
        var target = channel.target;
        var name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.

        var input = animationDef.parameters !== undefined ? animationDef.parameters[sampler.input] : sampler.input;
        var output = animationDef.parameters !== undefined ? animationDef.parameters[sampler.output] : sampler.output;
        pendingNodes.push(this.getDependency('node', name));
        pendingInputAccessors.push(this.getDependency('accessor', input));
        pendingOutputAccessors.push(this.getDependency('accessor', output));
        pendingSamplers.push(sampler);
        pendingTargets.push(target);
      }

      return Promise.all([Promise.all(pendingNodes), Promise.all(pendingInputAccessors), Promise.all(pendingOutputAccessors), Promise.all(pendingSamplers), Promise.all(pendingTargets)]).then(function (dependencies) {
        var nodes = dependencies[0];
        var inputAccessors = dependencies[1];
        var outputAccessors = dependencies[2];
        var samplers = dependencies[3];
        var targets = dependencies[4];
        var tracks = [];

        var _loop = function (_i7) {
          var node = nodes[_i7];
          var inputAccessor = inputAccessors[_i7];
          var outputAccessor = outputAccessors[_i7];
          var sampler = samplers[_i7];
          var target = targets[_i7];
          if (node === undefined) return "continue";
          node.updateMatrix();
          node.matrixAutoUpdate = true;
          var TypedKeyframeTrack = void 0;

          switch (PATH_PROPERTIES[target.path]) {
            case PATH_PROPERTIES.weights:
              TypedKeyframeTrack = _three.NumberKeyframeTrack;
              break;

            case PATH_PROPERTIES.rotation:
              TypedKeyframeTrack = _three.QuaternionKeyframeTrack;
              break;

            case PATH_PROPERTIES.position:
            case PATH_PROPERTIES.scale:
            default:
              TypedKeyframeTrack = _three.VectorKeyframeTrack;
              break;
          }

          var targetName = node.name ? node.name : node.uuid;
          var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[sampler.interpolation] : _three.InterpolateLinear;
          var targetNames = [];

          if (PATH_PROPERTIES[target.path] === PATH_PROPERTIES.weights) {
            node.traverse(function (object) {
              if (object.morphTargetInfluences) {
                targetNames.push(object.name ? object.name : object.uuid);
              }
            });
          } else {
            targetNames.push(targetName);
          }

          var outputArray = outputAccessor.array;

          if (outputAccessor.normalized) {
            var scale = getNormalizedComponentScale(outputArray.constructor);
            var scaled = new Float32Array(outputArray.length);

            for (var j = 0, jl = outputArray.length; j < jl; j++) {
              scaled[j] = outputArray[j] * scale;
            }

            outputArray = scaled;
          }

          for (var _j = 0, _jl = targetNames.length; _j < _jl; _j++) {
            var track = new TypedKeyframeTrack(targetNames[_j] + '.' + PATH_PROPERTIES[target.path], inputAccessor.array, outputArray, interpolation); // Override interpolation with custom factory method.

            if (sampler.interpolation === 'CUBICSPLINE') {
              track.createInterpolant = function (result) {
                // A CUBICSPLINE keyframe in glTF has three output values for each input value,
                // representing inTangent, splineVertex, and outTangent. As a result, track.getValueSize()
                // must be divided by three to get the interpolant's sampleSize argument.
                var interpolantType = this instanceof _three.QuaternionKeyframeTrack ? GLTFCubicSplineQuaternionInterpolant : GLTFCubicSplineInterpolant;
                return new interpolantType(this.times, this.values, this.getValueSize() / 3, result);
              }; // Mark as CUBICSPLINE. `track.getInterpolation()` doesn't support custom interpolants.


              track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true;
            }

            tracks.push(track);
          }
        };

        for (var _i7 = 0, _il6 = nodes.length; _i7 < _il6; _i7++) {
          var _ret = _loop(_i7, _il6);

          if (_ret === "continue") continue;
        }

        var name = animationDef.name ? animationDef.name : 'animation_' + animationIndex;
        return new _three.AnimationClip(name, undefined, tracks);
      });
    }
  }, {
    key: "createNodeMesh",
    value: function createNodeMesh(nodeIndex) {
      var json = this.json;
      var parser = this;
      var nodeDef = json.nodes[nodeIndex];
      if (nodeDef.mesh === undefined) return null;
      return parser.getDependency('mesh', nodeDef.mesh).then(function (mesh) {
        var node = parser._getNodeRef(parser.meshCache, nodeDef.mesh, mesh); // if weights are provided on the node, override weights on the mesh.


        if (nodeDef.weights !== undefined) {
          node.traverse(function (o) {
            if (!o.isMesh) return;

            for (var i = 0, il = nodeDef.weights.length; i < il; i++) {
              o.morphTargetInfluences[i] = nodeDef.weights[i];
            }
          });
        }

        return node;
      });
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
     * @param {number} nodeIndex
     * @return {Promise<Object3D>}
     */

  }, {
    key: "loadNode",
    value: function loadNode(nodeIndex) {
      var json = this.json;
      var extensions = this.extensions;
      var parser = this;
      var nodeDef = json.nodes[nodeIndex]; // reserve node's name before its dependencies, so the root has the intended name.

      var nodeName = nodeDef.name ? parser.createUniqueName(nodeDef.name) : '';
      return function () {
        var pending = [];

        var meshPromise = parser._invokeOne(function (ext) {
          return ext.createNodeMesh && ext.createNodeMesh(nodeIndex);
        });

        if (meshPromise) {
          pending.push(meshPromise);
        }

        if (nodeDef.camera !== undefined) {
          pending.push(parser.getDependency('camera', nodeDef.camera).then(function (camera) {
            return parser._getNodeRef(parser.cameraCache, nodeDef.camera, camera);
          }));
        }

        parser._invokeAll(function (ext) {
          return ext.createNodeAttachment && ext.createNodeAttachment(nodeIndex);
        }).forEach(function (promise) {
          pending.push(promise);
        });

        return Promise.all(pending);
      }().then(function (objects) {
        var node; // .isBone isn't in glTF spec. See ._markDefs

        if (nodeDef.isBone === true) {
          node = new _three.Bone();
        } else if (objects.length > 1) {
          node = new _three.Group();
        } else if (objects.length === 1) {
          node = objects[0];
        } else {
          node = new _three.Object3D();
        }

        if (node !== objects[0]) {
          for (var i = 0, il = objects.length; i < il; i++) {
            node.add(objects[i]);
          }
        }

        if (nodeDef.name) {
          node.userData.name = nodeDef.name;
          node.name = nodeName;
        }

        assignExtrasToUserData(node, nodeDef);
        if (nodeDef.extensions) addUnknownExtensionsToUserData(extensions, node, nodeDef);

        if (nodeDef.matrix !== undefined) {
          var matrix = new _three.Matrix4();
          matrix.fromArray(nodeDef.matrix);
          node.applyMatrix4(matrix);
        } else {
          if (nodeDef.translation !== undefined) {
            node.position.fromArray(nodeDef.translation);
          }

          if (nodeDef.rotation !== undefined) {
            node.quaternion.fromArray(nodeDef.rotation);
          }

          if (nodeDef.scale !== undefined) {
            node.scale.fromArray(nodeDef.scale);
          }
        }

        if (!parser.associations.has(node)) {
          parser.associations.set(node, {});
        }

        parser.associations.get(node).nodes = nodeIndex;
        return node;
      });
    }
    /**
     * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
     * @param {number} sceneIndex
     * @return {Promise<Group>}
     */

  }, {
    key: "loadScene",
    value: function loadScene(sceneIndex) {
      var json = this.json;
      var extensions = this.extensions;
      var sceneDef = this.json.scenes[sceneIndex];
      var parser = this; // Loader returns Group, not Scene.
      // See: https://github.com/mrdoob/three.js/issues/18342#issuecomment-578981172

      var scene = new _three.Group();
      if (sceneDef.name) scene.name = parser.createUniqueName(sceneDef.name);
      assignExtrasToUserData(scene, sceneDef);
      if (sceneDef.extensions) addUnknownExtensionsToUserData(extensions, scene, sceneDef);
      var nodeIds = sceneDef.nodes || [];
      var pending = [];

      for (var i = 0, il = nodeIds.length; i < il; i++) {
        pending.push(buildNodeHierarchy(nodeIds[i], scene, json, parser));
      }

      return Promise.all(pending).then(function () {
        // Removes dangling associations, associations that reference a node that
        // didn't make it into the scene.
        parser.associations = function reduceAssociations(node) {
          var reducedAssociations = new Map();

          var _iterator2 = _createForOfIteratorHelper(parser.associations),
              _step2;

          try {
            for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
              var _step2$value = (0, _slicedToArray2["default"])(_step2.value, 2),
                  key = _step2$value[0],
                  value = _step2$value[1];

              if (key instanceof _three.Material || key instanceof _three.Texture) {
                reducedAssociations.set(key, value);
              }
            }
          } catch (err) {
            _iterator2.e(err);
          } finally {
            _iterator2.f();
          }

          node.traverse(function (node) {
            var mappings = parser.associations.get(node);

            if (mappings != null) {
              reducedAssociations.set(node, mappings);
            }
          });
          return reducedAssociations;
        }(scene);

        return scene;
      });
    }
  }]);
  return GLTFParser;
}();

function buildNodeHierarchy(nodeId, parentObject, json, parser) {
  var nodeDef = json.nodes[nodeId];
  return parser.getDependency('node', nodeId).then(function (node) {
    if (nodeDef.skin === undefined) return node; // build skeleton here as well

    var skinEntry;
    return parser.getDependency('skin', nodeDef.skin).then(function (skin) {
      skinEntry = skin;
      var pendingJoints = [];

      for (var i = 0, il = skinEntry.joints.length; i < il; i++) {
        pendingJoints.push(parser.getDependency('node', skinEntry.joints[i]));
      }

      return Promise.all(pendingJoints);
    }).then(function (jointNodes) {
      node.traverse(function (mesh) {
        if (!mesh.isMesh) return;
        var bones = [];
        var boneInverses = [];

        for (var j = 0, jl = jointNodes.length; j < jl; j++) {
          var jointNode = jointNodes[j];

          if (jointNode) {
            bones.push(jointNode);
            var mat = new _three.Matrix4();

            if (skinEntry.inverseBindMatrices !== undefined) {
              mat.fromArray(skinEntry.inverseBindMatrices.array, j * 16);
            }

            boneInverses.push(mat);
          } else {
            console.warn('THREE.GLTFLoader: Joint "%s" could not be found.', skinEntry.joints[j]);
          }
        }

        mesh.bind(new _three.Skeleton(bones, boneInverses), mesh.matrixWorld);
      });
      return node;
    });
  }).then(function (node) {
    // build node hierachy
    parentObject.add(node);
    var pending = [];

    if (nodeDef.children) {
      var children = nodeDef.children;

      for (var i = 0, il = children.length; i < il; i++) {
        var child = children[i];
        pending.push(buildNodeHierarchy(child, node, json, parser));
      }
    }

    return Promise.all(pending);
  });
}
/**
 * @param {BufferGeometry} geometry
 * @param {GLTF.Primitive} primitiveDef
 * @param {GLTFParser} parser
 */


function computeBounds(geometry, primitiveDef, parser) {
  var attributes = primitiveDef.attributes;
  var box = new _three.Box3();

  if (attributes.POSITION !== undefined) {
    var accessor = parser.json.accessors[attributes.POSITION];
    var min = accessor.min;
    var max = accessor.max; // glTF requires 'min' and 'max', but VRM (which extends glTF) currently ignores that requirement.

    if (min !== undefined && max !== undefined) {
      box.set(new _three.Vector3(min[0], min[1], min[2]), new _three.Vector3(max[0], max[1], max[2]));

      if (accessor.normalized) {
        var boxScale = getNormalizedComponentScale(WEBGL_COMPONENT_TYPES[accessor.componentType]);
        box.min.multiplyScalar(boxScale);
        box.max.multiplyScalar(boxScale);
      }
    } else {
      console.warn('THREE.GLTFLoader: Missing min/max properties for accessor POSITION.');
      return;
    }
  } else {
    return;
  }

  var targets = primitiveDef.targets;

  if (targets !== undefined) {
    var maxDisplacement = new _three.Vector3();
    var vector = new _three.Vector3();

    for (var i = 0, il = targets.length; i < il; i++) {
      var target = targets[i];

      if (target.POSITION !== undefined) {
        var _accessor = parser.json.accessors[target.POSITION];
        var _min = _accessor.min;
        var _max = _accessor.max; // glTF requires 'min' and 'max', but VRM (which extends glTF) currently ignores that requirement.

        if (_min !== undefined && _max !== undefined) {
          // we need to get max of absolute components because target weight is [-1,1]
          vector.setX(Math.max(Math.abs(_min[0]), Math.abs(_max[0])));
          vector.setY(Math.max(Math.abs(_min[1]), Math.abs(_max[1])));
          vector.setZ(Math.max(Math.abs(_min[2]), Math.abs(_max[2])));

          if (_accessor.normalized) {
            var _boxScale = getNormalizedComponentScale(WEBGL_COMPONENT_TYPES[_accessor.componentType]);

            vector.multiplyScalar(_boxScale);
          } // Note: this assumes that the sum of all weights is at most 1. This isn't quite correct - it's more conservative
          // to assume that each target can have a max weight of 1. However, for some use cases - notably, when morph targets
          // are used to implement key-frame animations and as such only two are active at a time - this results in very large
          // boxes. So for now we make a box that's sometimes a touch too small but is hopefully mostly of reasonable size.


          maxDisplacement.max(vector);
        } else {
          console.warn('THREE.GLTFLoader: Missing min/max properties for accessor POSITION.');
        }
      }
    } // As per comment above this box isn't conservative, but has a reasonable size for a very large number of morph targets.


    box.expandByVector(maxDisplacement);
  }

  geometry.boundingBox = box;
  var sphere = new _three.Sphere();
  box.getCenter(sphere.center);
  sphere.radius = box.min.distanceTo(box.max) / 2;
  geometry.boundingSphere = sphere;
}
/**
 * @param {BufferGeometry} geometry
 * @param {GLTF.Primitive} primitiveDef
 * @param {GLTFParser} parser
 * @return {Promise<BufferGeometry>}
 */


function addPrimitiveAttributes(geometry, primitiveDef, parser) {
  var attributes = primitiveDef.attributes;
  var pending = [];

  function assignAttributeAccessor(accessorIndex, attributeName) {
    return parser.getDependency('accessor', accessorIndex).then(function (accessor) {
      geometry.setAttribute(attributeName, accessor);
    });
  }

  for (var gltfAttributeName in attributes) {
    var threeAttributeName = ATTRIBUTES[gltfAttributeName] || gltfAttributeName.toLowerCase(); // Skip attributes already provided by e.g. Draco extension.

    if (threeAttributeName in geometry.attributes) continue;
    pending.push(assignAttributeAccessor(attributes[gltfAttributeName], threeAttributeName));
  }

  if (primitiveDef.indices !== undefined && !geometry.index) {
    var accessor = parser.getDependency('accessor', primitiveDef.indices).then(function (accessor) {
      geometry.setIndex(accessor);
    });
    pending.push(accessor);
  }

  assignExtrasToUserData(geometry, primitiveDef);
  computeBounds(geometry, primitiveDef, parser);
  return Promise.all(pending).then(function () {
    return primitiveDef.targets !== undefined ? addMorphTargets(geometry, primitiveDef.targets, parser) : geometry;
  });
}
/**
 * @param {BufferGeometry} geometry
 * @param {Number} drawMode
 * @return {BufferGeometry}
 */


function toTrianglesDrawMode(geometry, drawMode) {
  var index = geometry.getIndex(); // generate index if not present

  if (index === null) {
    var indices = [];
    var position = geometry.getAttribute('position');

    if (position !== undefined) {
      for (var i = 0; i < position.count; i++) {
        indices.push(i);
      }

      geometry.setIndex(indices);
      index = geometry.getIndex();
    } else {
      console.error('THREE.GLTFLoader.toTrianglesDrawMode(): Undefined position attribute. Processing not possible.');
      return geometry;
    }
  } //


  var numberOfTriangles = index.count - 2;
  var newIndices = [];

  if (drawMode === _three.TriangleFanDrawMode) {
    // gl.TRIANGLE_FAN
    for (var _i8 = 1; _i8 <= numberOfTriangles; _i8++) {
      newIndices.push(index.getX(0));
      newIndices.push(index.getX(_i8));
      newIndices.push(index.getX(_i8 + 1));
    }
  } else {
    // gl.TRIANGLE_STRIP
    for (var _i9 = 0; _i9 < numberOfTriangles; _i9++) {
      if (_i9 % 2 === 0) {
        newIndices.push(index.getX(_i9));
        newIndices.push(index.getX(_i9 + 1));
        newIndices.push(index.getX(_i9 + 2));
      } else {
        newIndices.push(index.getX(_i9 + 2));
        newIndices.push(index.getX(_i9 + 1));
        newIndices.push(index.getX(_i9));
      }
    }
  }

  if (newIndices.length / 3 !== numberOfTriangles) {
    console.error('THREE.GLTFLoader.toTrianglesDrawMode(): Unable to generate correct amount of triangles.');
  } // build final geometry


  var newGeometry = geometry.clone();
  newGeometry.setIndex(newIndices);
  return newGeometry;
}

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/CameraUtils.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/CameraUtils.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;
exports.getLookAtFromMath = getLookAtFromMath;
exports.getRig = getRig;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _tween = _interopRequireDefault(__webpack_require__(/*! @tweenjs/tween.js */ "./node_modules/@tweenjs/tween.js/dist/tween.esm.js"));

var _DEMUtils = _interopRequireDefault(__webpack_require__(/*! ./DEMUtils */ "./node_modules/itowns/lib/Utils/DEMUtils.js"));

var _MainLoop = __webpack_require__(/*! ../Core/MainLoop */ "./node_modules/itowns/lib/Core/MainLoop.js");

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _Ellipsoid = _interopRequireDefault(__webpack_require__(/*! ../Core/Math/Ellipsoid */ "./node_modules/itowns/lib/Core/Math/Ellipsoid.js"));

var _OBB = _interopRequireDefault(__webpack_require__(/*! ../Renderer/OBB */ "./node_modules/itowns/lib/Renderer/OBB.js"));

var _View = __webpack_require__(/*! ../Core/View */ "./node_modules/itowns/lib/Core/View.js");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

THREE.Object3D.DefaultUp.set(0, 0, 1);
var targetPosition = new THREE.Vector3();
var targetCoord = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var ellipsoid = new _Ellipsoid["default"]();
var rigs = [];
var obb = new _OBB["default"]();
var size = new THREE.Vector3();

var deferred = function () {
  var resolve;
  var reject;
  return {
    promise: new Promise(function (re, rej) {
      resolve = re;
      reject = rej;
    }),
    resolve: resolve,
    reject: reject
  };
}; // Wrap angle in degrees to [-180 180]


function wrapTo180(angle) {
  return angle - Math.floor((angle + 180.0) / 360) * 360;
}

function tileLayer(view) {
  return view.getLayers(function (l) {
    return l.isTiledGeometryLayer;
  })[0];
}

function getLookAtFromMath(view, camera) {
  var direction = new THREE.Vector3(0, 0, 0.5);
  direction.unproject(camera);
  direction.sub(camera.position).normalize();

  if (view.referenceCrs == 'EPSG:4978') {
    // Intersect Ellispoid
    return ellipsoid.intersection({
      direction: direction,
      origin: camera.position
    });
  } else {
    // Intersect plane
    var distance = camera.position.z / direction.z;
    return direction.multiplyScalar(distance).add(camera.position);
  }
}

function proxyProperty(view, camera, rig, key) {
  rig.proxy.position[key] = camera.position[key];
  Object.defineProperty(camera.position, key, {
    get: function get() {
      return rig.proxy.position[key];
    },
    set: function set(newValue) {
      rig.removeProxy(view, camera);
      camera.position[key] = newValue;
    }
  });
} // the rig is used to manipulate the camera
// It consists of a tree of 3D objects, each element is assigned a task
//
//                      Transformation
//
// rig                  position on Coordinate  (for the globe is rotation)
// |
// └── sealevel         position on altitude zero
//     |
//     └── target       position on DEM, and rotation (pitch and heading)
//         |
//         └── camera   distance to target
//
// When all transformations are calculated,
// this.camera's transformation is applied to view.camera.camera


var CameraRig = /*#__PURE__*/function (_THREE$Object3D) {
  (0, _inherits2["default"])(CameraRig, _THREE$Object3D);

  var _super = _createSuper(CameraRig);

  function CameraRig() {
    var _this;

    (0, _classCallCheck2["default"])(this, CameraRig);
    _this = _super.call(this); // seaLevel is on rig's z axis, it's at altitude zero

    _this.seaLevel = new THREE.Object3D(); // target is on seaLevel's z axis and target.position.z is the DEM altitude

    _this.target = new THREE.Object3D();
    _this.target.rotation.order = 'ZXY'; // camera look at target

    _this.camera = new THREE.Camera();

    _this.add(_this.seaLevel);

    _this.seaLevel.add(_this.target);

    _this.target.add(_this.camera); // target's geographic coordinate


    _this.coord = new _Coordinates["default"]('EPSG:4978', 0, 0); // sea level's worldPoistion

    _this.targetWorldPosition = new THREE.Vector3();

    _this.removeAll = function () {};

    _this._onChangeCallback = null;
    return _this;
  } // apply rig.camera's transformation to camera


  (0, _createClass2["default"])(CameraRig, [{
    key: "applyTransformToCamera",
    value: function applyTransformToCamera(view, camera) {
      var _this2 = this;

      if (this.proxy) {
        camera.quaternion._onChange(this._onChangeCallback);

        this.camera.matrixWorld.decompose(this.proxy.position, camera.quaternion, camera.scale);

        camera.quaternion._onChange(function () {
          return _this2.removeProxy(view, camera);
        });
      } else {
        this.camera.matrixWorld.decompose(camera.position, camera.quaternion, camera.scale);
      }

      view.dispatchEvent({
        type: _View.VIEW_EVENTS.CAMERA_MOVED,
        coord: this.coord,
        range: this.range,
        heading: this.heading,
        tilt: this.tilt
      });
    }
  }, {
    key: "setProxy",
    value: function setProxy(view, camera) {
      var _this3 = this;

      if (!this.proxy && view && camera) {
        this.proxy = {
          position: new THREE.Vector3()
        };
        Object.keys(camera.position).forEach(function (key) {
          return proxyProperty(view, camera, _this3, key);
        });
        this._onChangeCallback = camera.quaternion._onChangeCallback;

        camera.quaternion._onChange(function () {
          return _this3.removeProxy(view, camera);
        });
      }
    }
  }, {
    key: "removeProxy",
    value: function removeProxy(view, camera) {
      var _this4 = this;

      this.stop(view);

      if (this.proxy && view && camera) {
        Object.keys(camera.position).forEach(function (key) {
          return Object.defineProperty(camera.position, key, {
            value: _this4.proxy.position[key],
            writable: true
          });
        });

        camera.quaternion._onChange(this._onChangeCallback);

        this.proxy = null;
      }
    }
  }, {
    key: "setTargetFromCoordinate",
    value: function setTargetFromCoordinate(view, coord) {
      // compute precise coordinate (coord) altitude and clamp it above seaLevel
      coord.as(tileLayer(view).extent.crs, this.coord);
      var altitude = Math.max(0, _DEMUtils["default"].getElevationValueAt(tileLayer(view), this.coord, _DEMUtils["default"].PRECISE_READ_Z) || this.coord.z);
      this.coord.z = altitude; // adjust target's position with clamped altitude

      this.coord.as(view.referenceCrs).toVector3(targetPosition);

      if (view.referenceCrs == 'EPSG:4978') {
        // ellipsoid geocentric projection
        this.lookAt(targetPosition);
        this.seaLevel.position.set(0, 0, targetPosition.length() - altitude);
      } else {
        // planar projection
        this.position.set(targetPosition.x, targetPosition.y, 0);
        this.seaLevel.position.set(0, 0, 0);
      } // place camera's target


      this.target.position.set(0, 0, altitude);
    } // set rig's objects transformation from camera's position and target's position

  }, {
    key: "setFromPositions",
    value: function setFromPositions(view, cameraPosition) {
      this.setTargetFromCoordinate(view, new _Coordinates["default"](view.referenceCrs, targetPosition));
      this.target.rotation.set(0, 0, 0);
      this.updateMatrixWorld(true);
      this.camera.position.copy(cameraPosition);
      this.target.worldToLocal(this.camera.position);
      var range = this.camera.position.length();
      this.target.rotation.x = Math.asin(this.camera.position.z / range);
      var cosPlanXY = THREE.MathUtils.clamp(this.camera.position.y / (Math.cos(this.target.rotation.x) * range), -1, 1);
      this.target.rotation.z = Math.sign(-this.camera.position.x || 1) * Math.acos(cosPlanXY);
      this.camera.position.set(0, range, 0);
    } // set from target's coordinate, rotation and range between target and camera

  }, {
    key: "applyParams",
    value: function applyParams(view, params) {
      if (params.coord) {
        this.setTargetFromCoordinate(view, params.coord);
      }

      if (params.tilt != undefined) {
        this.target.rotation.x = THREE.MathUtils.degToRad(params.tilt);
      }

      if (params.heading != undefined) {
        this.target.rotation.z = THREE.MathUtils.degToRad(-wrapTo180(params.heading + 180));
      }

      if (params.range) {
        this.camera.position.set(0, params.range, 0);
      }

      this.camera.rotation.set(-Math.PI * 0.5, 0, Math.PI);
      this.updateMatrixWorld(true);
      this.targetWorldPosition.setFromMatrixPosition(this.seaLevel.matrixWorld);
    }
  }, {
    key: "getParams",
    value: function getParams() {
      return {
        coord: this.coord.clone(),
        tilt: this.tilt,
        heading: this.heading,
        range: this.range,
        targetWorldPosition: this.targetWorldPosition
      };
    }
  }, {
    key: "setfromCamera",
    value: function setfromCamera(view, camera, pickedPosition) {
      camera.updateMatrixWorld(true);

      if (pickedPosition == undefined) {
        pickedPosition = view.getPickingPositionFromDepth() || getLookAtFromMath(view, camera);
      }

      var range = pickedPosition && !isNaN(pickedPosition.x) ? camera.position.distanceTo(pickedPosition) : 100;
      camera.localToWorld(targetPosition.set(0, 0, -range));
      this.setFromPositions(view, camera.position);
    }
  }, {
    key: "copyObject3D",
    value: function copyObject3D(rig) {
      this.copy(rig, false);
      this.seaLevel.copy(rig.seaLevel, false);
      this.target.copy(rig.target, false);
      this.camera.copy(rig.camera);
      return this;
    }
  }, {
    key: "animateCameraToLookAtTarget",
    value: function animateCameraToLookAtTarget(view, camera, params) {
      var _this5 = this;

      params.easing = params.easing || _tween["default"].Easing.Quartic.InOut;
      this.setfromCamera(view, camera);
      var tweenGroup = new _tween["default"].Group();
      this.start = (this.start || new CameraRig()).copyObject3D(this);
      this.end = (this.end || new CameraRig()).copyObject3D(this);
      var time = params.time || 2500;
      var factor = {
        t: 0
      };
      var animations = [];
      var def = deferred();
      this.addPlaceTargetOnGround(view, camera, params.coord, factor);
      this.end.applyParams(view, params); // compute the angle along z-axis between the starting position and the end position

      var difference = this.end.target.rotation.z - this.start.target.rotation.z; // if that angle is superior to 180°, recompute the rotation as the complementary angle.

      if (Math.abs(difference) > Math.PI) {
        this.end.target.rotation.z = this.start.target.rotation.z + difference - Math.sign(difference) * 2 * Math.PI;
      }

      animations.push(new _tween["default"].Tween(factor, tweenGroup).to({
        t: 1
      }, time).easing(params.easing).onUpdate(function (d) {
        // rotate to coord destination in geocentric projection
        if (view.referenceCrs == 'EPSG:4978') {
          _this5.quaternion.slerpQuaternions(_this5.start.quaternion, _this5.end.quaternion, d.t);
        } // camera rotation


        _this5.camera.quaternion.slerpQuaternions(_this5.start.camera.quaternion, _this5.end.camera.quaternion, d.t); // camera's target rotation


        _this5.target.rotation.set(0, 0, 0);

        _this5.target.rotateZ(THREE.MathUtils.lerp(_this5.start.target.rotation.z, _this5.end.target.rotation.z, d.t));

        _this5.target.rotateX(THREE.MathUtils.lerp(_this5.start.target.rotation.x, _this5.end.target.rotation.x, d.t));
      })); // translate to coordinate destination in planar projection

      if (view.referenceCrs != 'EPSG:4978') {
        animations.push(new _tween["default"].Tween(this.position, tweenGroup).to(this.end.position, time).easing(params.easing));
      } // translate to altitude zero


      animations.push(new _tween["default"].Tween(this.seaLevel.position, tweenGroup).to(this.end.seaLevel.position, time).easing(params.easing)); // translate camera position

      animations.push(new _tween["default"].Tween(this.camera.position, tweenGroup).to(this.end.camera.position, time).easing(params.easing)); // update animations, transformation and view

      this.animationFrameRequester = function () {
        tweenGroup.update();

        _this5.updateMatrixWorld(true);

        _this5.applyTransformToCamera(view, camera);

        _this5.targetWorldPosition.setFromMatrixPosition(_this5.seaLevel.matrixWorld);

        if (params.callback) {
          params.callback(_this5);
        }

        targetCoord.crs = view.referenceCrs;
        targetCoord.setFromVector3(_this5.targetWorldPosition).as(tileLayer(view).extent.crs, _this5.coord);
        view.notifyChange(camera);
      };

      this.removeAll = function (o) {
        this.removeAll = function () {};

        tweenGroup.removeAll();

        if (this.animationFrameRequester) {
          view.removeFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.BEFORE_RENDER, this.animationFrameRequester);
        }

        def.resolve(o !== undefined);
        this.animationFrameRequester = null;
      }; // Waiting last animation complete,
      // we assume that the animation that completes last is the one that was started last


      animations[animations.length - 1].onComplete(this.removeAll);
      animations.forEach(function (anim) {
        return anim.start();
      });
      view.addFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.BEFORE_RENDER, this.animationFrameRequester);
      view.notifyChange(camera);
      return def;
    }
  }, {
    key: "stop",
    value: function stop(view) {
      this.removePlaceTargetOnGround(view);
      this.removeAll();
    } // update target position to coordinate's altitude

  }, {
    key: "addPlaceTargetOnGround",
    value: function addPlaceTargetOnGround(view, camera, coord) {
      var _this6 = this;

      var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {
        t: 1.0
      };
      this.removePlaceTargetOnGround(view);

      if (view && camera) {
        var startAltitude = this.target.position.z;

        this.placeTargetOnGround = function () {
          var altitude = Math.max(0, _DEMUtils["default"].getElevationValueAt(tileLayer(view), coord || _this6.coord, _DEMUtils["default"].PRECISE_READ_Z) || 0);
          _this6.target.position.z = startAltitude * (1.0 - options.t) + altitude * options.t;

          _this6.target.updateMatrixWorld(true);

          _this6.applyTransformToCamera(view, camera);
        };

        this.placeTargetOnGround();
        view.addFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.BEFORE_RENDER, this.placeTargetOnGround);
      }
    }
  }, {
    key: "removePlaceTargetOnGround",
    value: function removePlaceTargetOnGround(view) {
      if (view && this.placeTargetOnGround) {
        view.removeFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.BEFORE_RENDER, this.placeTargetOnGround);
        this.placeTargetOnGround = null;
      }
    }
  }, {
    key: "tilt",
    get: function get() {
      return THREE.MathUtils.radToDeg(this.target.rotation.x);
    }
  }, {
    key: "heading",
    get: function get() {
      return -wrapTo180(THREE.MathUtils.radToDeg(this.target.rotation.z) + 180);
    }
  }, {
    key: "range",
    get: function get() {
      return this.camera.position.y;
    }
  }]);
  return CameraRig;
}(THREE.Object3D);

function getRig(camera) {
  rigs[camera.uuid] = rigs[camera.uuid] || new CameraRig(camera);
  return rigs[camera.uuid];
}
/**
 * @module CameraUtils
 */


var _default = {
  /**
   * @typedef {Object} CameraTransformOptions
   * @property {Coordinate} [coord=currentCoordinate] Camera look at geographic coordinate
   * @property {Number} [tilt=currentTilt] camera's tilt, in degree
   * @property {Number} [heading=currentHeading] camera's heading, in degree
   * @property {Number} [range=currentRange] camera distance to target coordinate, in meter
   * @property {Number} [time=2500] duration of the animation, in ms
   * @property {boolean} [proxy=true] use proxy to handling camera's transformation. if proxy == true, other camera's transformation stops rig's transformation
   * @property {Number} [easing=TWEEN.Easing.Quartic.InOut] in and out easing animation
   * @property {function} [callback] callback call each animation's frame (params are current cameraTransform and worldTargetPosition)
   * @property {boolean} [stopPlaceOnGroundAtEnd=false] stop place target on the ground at animation ending
   */

  /**
   * Default value for option to stop place target
   * on the ground at animation ending.
   * Default value is false.
   */
  defaultStopPlaceOnGroundAtEnd: false,
  Easing: _tween["default"].Easing,

  /**
   * Stop camera's animation
   *
   * @param      {View}  view    The camera view
   * @param      {Camera}  camera  The camera to stop animation
   */
  stop: function stop(view, camera) {
    getRig(camera).stop(view);
  },

  /**
   * Gets the current parameters transform camera looking at target.
   *
   * @param      {View}  view    The camera view
   * @param      {Camera}  camera  The camera to get transform
   * @param      {THREE.Vector3} [target] - The optional target
   * @return     {CameraUtils~CameraTransformOptions}  The transform camera looking at target
   */
  getTransformCameraLookingAtTarget: function getTransformCameraLookingAtTarget(view, camera, target) {
    var rig = getRig(camera);
    rig.setfromCamera(view, camera, target);
    return rig.getParams();
  },

  /**
   * Apply transform to camera
   *
   * @param      {View}  view    The camera view
   * @param      {Camera}  camera  The camera to transform
   * @param      {CameraUtils~CameraTransformOptions|Extent}  params  The parameters
   * @return     {Promise} promise with resolve final CameraUtils~CameraTransformOptions
   */
  transformCameraToLookAtTarget: function transformCameraToLookAtTarget(view, camera) {
    var params = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

    if (params.isExtent) {
      params = this.getCameraTransformOptionsFromExtent(view, camera, params);
    }

    params.proxy = params.proxy === undefined || params.proxy;
    var rig = getRig(camera);
    rig.stop(view);
    rig.setfromCamera(view, camera);

    if (params.proxy) {
      rig.setProxy(view, camera);
    }

    rig.applyParams(view, params);
    rig.addPlaceTargetOnGround(view, camera, params.coord);
    rig.applyTransformToCamera(view, camera);
    view.notifyChange(camera);
    return Promise.resolve(rig.getParams());
  },

  /**
   * Compute the CameraTransformOptions that allow a given camera to display a given extent in its entirety.
   *
   * @param   {View}    view    The camera view
   * @param   {Camera}  camera  The camera to get the CameraTransformOptions from
   * @param   {Extent}  extent  The extent the camera must display
   *
   * @return  {CameraUtils~CameraTransformOptions}   The CameraTransformOptions allowing camera to display the extent.
   */
  getCameraTransformOptionsFromExtent: function getCameraTransformOptionsFromExtent(view, camera, extent) {
    var cameraTransformOptions = {
      coord: new _Coordinates["default"](extent.crs, 0, 0, 0),
      heading: 0,
      tilt: view.isPlanarView ? 90 : 89.9
    };
    var dimensions;

    if (view.isGlobeView) {
      extent = extent.as('EPSG:4326'); // compute extent's bounding box dimensions

      obb.setFromExtent(extent); // /!\ WARNING x and y are inverted, see issue #XXXX

      obb.box3D.getSize(size);
      dimensions = {
        x: size.y,
        y: size.x
      };
    } else {
      extent = extent.as(view.referenceCrs);
      dimensions = extent.planarDimensions();
    }

    extent.center(cameraTransformOptions.coord);

    if (camera.isOrthographicCamera) {
      // setup camera zoom
      if (dimensions.x / dimensions.y > camera.aspect) {
        camera.zoom = (camera.right - camera.left) / dimensions.x;
      } else {
        camera.zoom = (camera.top - camera.bottom) / dimensions.y;
      }

      camera.updateProjectionMatrix(); // setup camera placement

      cameraTransformOptions.range = 1000;
    } else if (camera.isPerspectiveCamera) {
      // setup range for camera placement
      var verticalFOV = THREE.Math.degToRad(camera.fov);

      if (dimensions.x / dimensions.y > camera.aspect) {
        var focal = view.domElement.clientHeight * 0.5 / Math.tan(verticalFOV * 0.5);
        var horizontalFOV = 2 * Math.atan(view.domElement.clientWidth * 0.5 / focal);
        cameraTransformOptions.range = dimensions.x / (2 * Math.tan(horizontalFOV * 0.5));
      } else {
        cameraTransformOptions.range = dimensions.y / (2 * Math.tan(verticalFOV * 0.5));
      }
    }

    return cameraTransformOptions;
  },

  /**
   * Apply transform to camera with animation
   *
   * @param      {View}  view    The camera view
   * @param      {Camera}  camera  The camera to animate
   * @param      {CameraUtils~CameraTransformOptions}  params  The parameters
   * @return     {Promise} promise with resolve final CameraUtils~CameraTransformOptions
   */
  animateCameraToLookAtTarget: function animateCameraToLookAtTarget(view, camera) {
    var _this7 = this;

    var params = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    params.proxy = params.proxy === undefined || params.proxy;
    var rig = getRig(camera);
    rig.stop(view);

    if (params.proxy) {
      rig.setProxy(view, camera);
    }

    return rig.animateCameraToLookAtTarget(view, camera, params).promise.then(function (finished) {
      var stopPlaceOnGround = params.stopPlaceOnGroundAtEnd === undefined ? _this7.defaultStopPlaceOnGroundAtEnd : params.stopPlaceOnGroundAtEnd;
      var newTransformation = rig.getParams();

      if (stopPlaceOnGround) {
        rig.stop(view);
      }

      newTransformation.finished = finished;
      return newTransformation;
    });
  },

  /**
   * chain animation transform to camera
   *
   * @param      {View}  view    The camera view
   * @param      {Camera}  camera  The camera to animate
   * @param      {CameraUtils~CameraTransformOptions[]}  params  array parameters, each parameters transforms are apply to camera, in serial
   * @return     {Promise} promise with resolve final CameraUtils~CameraTransformOptions
   */
  sequenceAnimationsToLookAtTarget: function sequenceAnimationsToLookAtTarget(view, camera) {
    var _this8 = this;

    var params = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [{}];
    // convert each param to a function
    var funcs = params.map(function (param) {
      return function () {
        return _this8.animateCameraToLookAtTarget(view, camera, param);
      };
    }); // execute Promises in serial

    return function promiseSerial(funcs) {
      return funcs.reduce(function (promise, func) {
        return promise.then(function (result) {
          var finished = result.length ? result[result.length - 1].finished : true;

          if (finished) {
            return func().then(Array.prototype.concat.bind(result));
          } else {
            return Promise.resolve([{
              finished: false
            }]);
          }
        });
      }, Promise.resolve([]));
    }(funcs);
  },

  /**
   * Gets the difference camera transformation
   *
   * @param      {CameraUtils~CameraTransformOptions}  first  param to compare with the second
   * @param      {CameraUtils~CameraTransformOptions}  second param to compare with the first
   * @return     {object} The difference parameters
   */
  getDiffParams: function getDiffParams(first, second) {
    if (!first || !second) {
      return;
    }

    var diff;

    if (Math.abs(first.range - second.range) / first.range > 0.001) {
      diff = diff || {};
      diff.range = {
        previous: first.range,
        "new": second.range
      };
    }

    if (Math.abs(first.tilt - second.tilt) > 0.1) {
      diff = diff || {};
      diff.tilt = {
        previous: first.tilt,
        "new": second.tilt
      };
    }

    if (Math.abs(first.heading - second.heading) > 0.1) {
      diff = diff || {};
      diff.heading = {
        previous: first.heading,
        "new": second.heading
      };
    }

    if (Math.abs(first.coord.x - second.coord.x) > 0.000001 || Math.abs(first.coord.y - second.coord.y) > 0.000001) {
      diff = diff || {};
      diff.coord = {
        previous: first.coord,
        "new": second.coord
      };
    }

    return diff;
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/DEMUtils.js":
/*!***************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/DEMUtils.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;
exports.readTextureValueWithBilinearFiltering = readTextureValueWithBilinearFiltering;

var _slicedToArray2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/slicedToArray */ "./node_modules/@babel/runtime/helpers/slicedToArray.js"));

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _placeObjectOnGround = _interopRequireDefault(__webpack_require__(/*! ./placeObjectOnGround */ "./node_modules/itowns/lib/Utils/placeObjectOnGround.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var FAST_READ_Z = 0;
var PRECISE_READ_Z = 1;
/**
 * Utility module to retrieve elevation at a given coordinates. The returned
 * value is read in the elevation textures used by the graphics card to render
 * the tiles (globe or plane). This implies that the return value may change
 * depending on the current tile resolution.
 *
 * @module DEMUtils
 */

var _default = {
  /**
   * Gives the elevation value of a {@link TiledGeometryLayer}, at a specific
   * {@link Coordinates}.
   *
   * @param {TiledGeometryLayer} layer - The tile layer owning the elevation
   * textures we're going to query. This is typically a `GlobeLayer` or
   * `PlanarLayer` (accessible through `view.tileLayer`).
   * @param {Coordinates} coord - The coordinates that we're interested in.
   * @param {number} [method=FAST_READ_Z] - There are two available methods:
   * `FAST_READ_Z` (default) or `PRECISE_READ_Z`. The first one is faster,
   * while the second one is slower but gives better precision.
   * @param {TileMesh[]} [tileHint] - Optional array of tiles to speed up the
   * process. You can give candidates tiles likely to contain `coord`.
   * Otherwise the lookup process starts from the root of `layer`.
   *
   * @return {number} If found, a value in meters is returned; otherwise
   * `undefined`.
   */
  getElevationValueAt: function getElevationValueAt(layer, coord) {
    var method = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : FAST_READ_Z;
    var tileHint = arguments.length > 3 ? arguments[3] : undefined;

    var result = _readZ(layer, method, coord, tileHint || layer.level0Nodes);

    if (result) {
      return result.coord.z;
    }
  },

  /**
   * @typedef Terrain
   * @type {Object}
   *
   * @property {Coordinates} coord - Pick coordinate with the elevation in coord.z.
   * @property {THREE.Texture} texture - the picked elevation texture.
   * The texture where the `z` value has been read from
   * @property {TileMesh} tile - the picked tile and the tile containing the texture
   */

  /**
   * Gives a {@link Terrain} object, at a specific {@link Coordinates}. The returned
   * object is as follow:
   * - `coord`, Coordinate, coord.z is the value in meters of the elevation at the coordinates
   * - `texture`, the texture where the `z` value has been read from
   * - `tile`, the tile containing the texture
   * @example
   * // place mesh on the ground
   * const coord = new Coordinates('EPSG:4326', 6, 45);
   * const result = DEMUtils.getTerrainObjectAt(view.tileLayer, coord)
   * mesh.position.copy(result.coord.as(view.referenceCrs));
   * view.scene.add(mesh);
   * mesh.updateMatrixWorld();
   *
   *
   * @param {TiledGeometryLayer} layer - The tile layer owning the elevation
   * textures we're going to query. This is typically a `GlobeLayer` or
   * `PlanarLayer` (accessible through `view.tileLayer`).
   * @param {Coordinates} coord - The coordinates that we're interested in.
   * @param {number} [method=FAST_READ_Z] - There are two available methods:
   * `FAST_READ_Z` (default) or `PRECISE_READ_Z`. The first one is faster,
   * while the second one is slower but gives better precision.
   * @param {TileMesh[]} [tileHint] - Optional array of tiles to speed up the
   * process. You can give candidates tiles likely to contain `coord`.
   * Otherwise the lookup process starts from the root of `layer`.
   * @param {Object} [cache] - Object to cache previous result and speed up the next `getTerrainObjectAt`` use.
   *
   * @return {Terrain} - The {@link Terrain} object.
   */
  getTerrainObjectAt: function getTerrainObjectAt(layer, coord) {
    var method = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : FAST_READ_Z;
    var tileHint = arguments.length > 3 ? arguments[3] : undefined;
    var cache = arguments.length > 4 ? arguments[4] : undefined;
    return _readZ(layer, method, coord, tileHint || layer.level0Nodes, cache);
  },
  FAST_READ_Z: FAST_READ_Z,
  PRECISE_READ_Z: PRECISE_READ_Z,
  placeObjectOnGround: _placeObjectOnGround["default"]
};
exports["default"] = _default;

function tileAt(pt, tile) {
  if (tile.extent) {
    if (!tile.extent.isPointInside(pt)) {
      return undefined;
    }

    for (var i = 0; i < tile.children.length; i++) {
      var t = tileAt(pt, tile.children[i]);

      if (t) {
        return t;
      }
    }

    var tileLayer = tile.material.getElevationLayer();

    if (tileLayer && tileLayer.level >= 0) {
      return tile;
    }

    return undefined;
  }
}

var _canvas;

function _readTextureValueAt(metadata, texture) {
  for (var _len = arguments.length, uv = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
    uv[_key - 2] = arguments[_key];
  }

  for (var i = 0; i < uv.length; i += 2) {
    uv[i] = THREE.MathUtils.clamp(uv[i], 0, texture.image.width - 1);
    uv[i + 1] = THREE.MathUtils.clamp(uv[i + 1], 0, texture.image.height - 1);
  }

  if (texture.image.data) {
    // read a single value
    if (uv.length === 2) {
      var v = texture.image.data[uv[1] * texture.image.width + uv[0]];
      return v != metadata.noDataValue ? v : undefined;
    } // or read multiple values


    var result = [];

    for (var _i = 0; _i < uv.length; _i += 2) {
      var _v = texture.image.data[uv[_i + 1] * texture.image.width + uv[_i]];
      result.push(_v != metadata.noDataValue ? _v : undefined);
    }

    return result;
  } else {
    if (!_canvas) {
      _canvas = document.createElement('canvas');
      _canvas.width = 2;
      _canvas.height = 2;
    }

    var minx = Infinity;
    var miny = Infinity;
    var maxx = -Infinity;
    var maxy = -Infinity;

    for (var _i2 = 0; _i2 < uv.length; _i2 += 2) {
      minx = Math.min(uv[_i2], minx);
      miny = Math.min(uv[_i2 + 1], miny);
      maxx = Math.max(uv[_i2], maxx);
      maxy = Math.max(uv[_i2 + 1], maxy);
    }

    var dw = maxx - minx + 1;
    var dh = maxy - miny + 1;
    _canvas.width = Math.max(_canvas.width, dw);
    _canvas.height = Math.max(_canvas.height, dh);

    var ctx = _canvas.getContext('2d');

    ctx.drawImage(texture.image, minx, miny, dw, dh, 0, 0, dw, dh);
    var d = ctx.getImageData(0, 0, dw, dh);
    var _result = [];

    for (var _i3 = 0; _i3 < uv.length; _i3 += 2) {
      var ox = uv[_i3] - minx;
      var oy = uv[_i3 + 1] - miny; // d is 4 bytes per pixel

      var _v2 = THREE.MathUtils.lerp(metadata.colorTextureElevationMinZ, metadata.colorTextureElevationMaxZ, d.data[4 * oy * dw + 4 * ox] / 255);

      _result.push(_v2 != metadata.noDataValue ? _v2 : undefined);
    }

    if (uv.length === 2) {
      return _result[0];
    } else {
      return _result;
    }
  }
}

function _convertUVtoTextureCoords(texture, u, v) {
  var width = texture.image.width;
  var height = texture.image.height;
  var up = Math.max(0, u * width - 0.5);
  var vp = Math.max(0, v * height - 0.5);
  var u1 = Math.floor(up);
  var u2 = Math.ceil(up);
  var v1 = Math.floor(vp);
  var v2 = Math.ceil(vp);
  return {
    u1: u1,
    u2: u2,
    v1: v1,
    v2: v2,
    wu: up - u1,
    wv: vp - v1
  };
}

function _readTextureValueNearestFiltering(metadata, texture, vertexU, vertexV) {
  var coords = _convertUVtoTextureCoords(texture, vertexU, vertexV);

  var u = coords.wu <= 0 ? coords.u1 : coords.u2;
  var v = coords.wv <= 0 ? coords.v1 : coords.v2;
  return _readTextureValueAt(metadata, texture, u, v);
}

function _lerpWithUndefinedCheck(x, y, t) {
  if (x == undefined) {
    return y;
  } else if (y == undefined) {
    return x;
  } else {
    return THREE.MathUtils.lerp(x, y, t);
  }
}

function readTextureValueWithBilinearFiltering(metadata, texture, vertexU, vertexV) {
  var coords = _convertUVtoTextureCoords(texture, vertexU, vertexV);

  var _readTextureValueAt2 = _readTextureValueAt(metadata, texture, coords.u1, coords.v1, coords.u2, coords.v1, coords.u1, coords.v2, coords.u2, coords.v2),
      _readTextureValueAt3 = (0, _slicedToArray2["default"])(_readTextureValueAt2, 4),
      z11 = _readTextureValueAt3[0],
      z21 = _readTextureValueAt3[1],
      z12 = _readTextureValueAt3[2],
      z22 = _readTextureValueAt3[3]; // horizontal filtering


  var zu1 = _lerpWithUndefinedCheck(z11, z21, coords.wu);

  var zu2 = _lerpWithUndefinedCheck(z12, z22, coords.wu); // then vertical filtering


  return _lerpWithUndefinedCheck(zu1, zu2, coords.wv);
}

function _readZFast(layer, texture, uv) {
  var elevationLayer = layer.attachedLayers.filter(function (l) {
    return l.isElevationLayer;
  })[0];
  return _readTextureValueNearestFiltering(elevationLayer, texture, uv.x, uv.y);
}

var bary = new THREE.Vector3();

function _readZCorrect(layer, texture, uv, tileDimensions, tileOwnerDimensions) {
  // We need to emulate the vertex shader code that does 2 thing:
  //   - interpolate (u, v) between triangle vertices: u,v will be multiple of 1/nsegments
  //     (for now assume nsegments == 16)
  //   - read elevation texture at (u, v) for
  // Determine u,v based on the vertices count.
  // 'modulo' is the gap (in [0, 1]) between 2 successive vertices in the geometry
  // e.g if you have 5 vertices, the only possible values for u (or v) are: 0, 0.25, 0.5, 0.75, 1
  // so modulo would be 0.25
  // note: currently the number of segments is hard-coded to 16 (see TileProvider) => 17 vertices
  var modulo = tileDimensions.x / tileOwnerDimensions.x / (17 - 1);
  var u = Math.floor(uv.x / modulo) * modulo;
  var v = Math.floor(uv.y / modulo) * modulo;

  if (u == 1) {
    u -= modulo;
  }

  if (v == 1) {
    v -= modulo;
  } // Build 4 vertices, 3 of them will be our triangle:
  //    11---21
  //    |   / |
  //    |  /  |
  //    | /   |
  //    21---22


  var u1 = u;
  var u2 = u + modulo;
  var v1 = v;
  var v2 = v + modulo; // Our multiple z-value will be weigh-blended, depending on the distance of the real point
  // so lu (resp. lv) are the weight. When lu -> 0 (resp. 1) the final value -> z at u1 (resp. u2)

  var lu = (uv.x - u) / modulo;
  var lv = (uv.y - v) / modulo; // Determine if we're going to read the vertices from the top-left or lower-right triangle
  // (low-right = on the line 21-22 or under the diagonal lu = 1 - lv)

  var tri = new THREE.Triangle(new THREE.Vector3(u1, v2), new THREE.Vector3(u2, v1), lv == 1 || lu / (1 - lv) >= 1 ? new THREE.Vector3(u2, v2) : new THREE.Vector3(u1, v1)); // bary holds the respective weight of each vertices of the triangles

  tri.getBarycoord(new THREE.Vector3(uv.x, uv.y), bary);
  var elevationLayer = layer.attachedLayers.filter(function (l) {
    return l.isElevationLayer;
  })[0]; // read the 3 interesting values

  var z1 = readTextureValueWithBilinearFiltering(elevationLayer, texture, tri.a.x, tri.a.y);
  var z2 = readTextureValueWithBilinearFiltering(elevationLayer, texture, tri.b.x, tri.b.y);
  var z3 = readTextureValueWithBilinearFiltering(elevationLayer, texture, tri.c.x, tri.c.y); // Blend with bary

  return z1 * bary.x + z2 * bary.y + z3 * bary.z;
}

var temp = {
  v: new THREE.Vector3(),
  coord1: new _Coordinates["default"]('EPSG:4978'),
  coord2: new _Coordinates["default"]('EPSG:4978'),
  offset: new THREE.Vector2()
};
var dimension = new THREE.Vector2();

function offsetInExtent(point, extent) {
  var target = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new THREE.Vector2();

  if (point.crs != extent.crs) {
    throw new Error("Unsupported mix: ".concat(point.crs, " and ").concat(extent.crs));
  }

  extent.planarDimensions(dimension);
  var originX = (point.x - extent.west) / dimension.x;
  var originY = (extent.north - point.y) / dimension.y;
  return target.set(originX, originY);
}

function _readZ(layer, method, coord, nodes, cache) {
  var _cache$tile;

  var pt = coord.as(layer.extent.crs, temp.coord1);
  var tileWithValidElevationTexture = null; // first check in cache

  if (cache !== null && cache !== void 0 && (_cache$tile = cache.tile) !== null && _cache$tile !== void 0 && _cache$tile.material) {
    tileWithValidElevationTexture = tileAt(pt, cache.tile);
  }

  for (var i = 0; !tileWithValidElevationTexture && i < nodes.length; i++) {
    tileWithValidElevationTexture = tileAt(pt, nodes[i]);
  }

  if (!tileWithValidElevationTexture) {
    // failed to find a tile, abort
    return;
  }

  var tile = tileWithValidElevationTexture;
  var tileLayer = tile.material.getElevationLayer();
  var src = tileLayer.textures[0]; // check cache value if existing

  if (cache) {
    if (cache.id === src.id && cache.version === src.version) {
      return {
        coord: pt,
        texture: src,
        tile: tile
      };
    }
  } // Assuming that tiles are split in 4 children, we lookup the parent that
  // really owns this texture


  var stepsUpInHierarchy = Math.round(Math.log2(1.0 / tileLayer.offsetScales[0].z));

  for (var _i4 = 0; _i4 < stepsUpInHierarchy; _i4++) {
    tileWithValidElevationTexture = tileWithValidElevationTexture.parent;
  } // offset = offset from top-left


  offsetInExtent(pt, tileWithValidElevationTexture.extent, temp.offset); // At this point we have:
  //   - tileWithValidElevationTexture.texture.image which is the current image
  //     used for rendering
  //   - offset which is the offset in this texture for the coordinate we're
  //     interested in
  // We now have 2 options:
  //   - the fast one: read the value of tileWithValidElevationTexture.texture.image
  //     at (offset.x, offset.y) and we're done
  //   - the correct one: emulate the vertex shader code

  if (method == PRECISE_READ_Z) {
    pt.z = _readZCorrect(layer, src, temp.offset, tile.extent.planarDimensions(), tileWithValidElevationTexture.extent.planarDimensions());
  } else {
    pt.z = _readZFast(layer, src, temp.offset);
  }

  if (pt.z != undefined) {
    return {
      coord: pt,
      texture: src,
      tile: tile
    };
  }
}

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/FeaturesUtils.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/FeaturesUtils.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _Feature = __webpack_require__(/*! ../Core/Feature */ "./node_modules/itowns/lib/Core/Feature.js");

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function pointIsOverLine(point, linePoints, epsilon, offset, count, size) {
  var x0 = point.x;
  var y0 = point.y; // for each segment of the line (j is i -1)

  for (var i = offset + size, j = offset; i < offset + count; j = i, i += size) {
    /* **********************************************************
        norm     : norm of vector P1P2
        distance : distance point P0 to line P1P2
        scalar   : dot product of P1P0 and P1P2 divide by norm, it represents the projection of P0 on the line
         Point is over segment P1P2 if :
            * if the distance, , is inferior to epsilon
            * and if :  -epsilon ≤ scalar ≤ (||P1P2|| +  epsilon)
                         + (P0) _
                        |      |
                        |      |
         <---scalar---->|    distance
                        |      |
                        |      v
         +-------------------------------+
        (P1)                            (P2)
    *********************************************************** */
    var x1 = linePoints[i];
    var y1 = linePoints[i + 1];
    var x2 = linePoints[j];
    var y2 = linePoints[j + 1];
    var x21 = x2 - x1;
    var y21 = y2 - y1;
    var norm = Math.sqrt(x21 * x21 + y21 * y21);
    var scalar = ((x0 - x1) * x21 + (y0 - y1) * y21) / norm;

    if (scalar >= -epsilon && scalar <= norm + epsilon) {
      var distance = Math.abs(y21 * x0 - x21 * y0 + x2 * y1 - y2 * x1) / norm;

      if (distance <= epsilon) {
        return true;
      }
    }
  }

  return false;
}

function getClosestPoint(point, points, epsilon, offset, count, size) {
  var x0 = point.x;
  var y0 = point.y;
  var squaredEpsilon = epsilon * epsilon;
  var closestPoint;

  for (var i = offset; i < offset + count; i += size) {
    var x1 = points[i];
    var y1 = points[i + 1];
    var xP = x0 - x1;
    var yP = y0 - y1;
    var n = xP * xP + yP * yP;

    if (n < squaredEpsilon) {
      closestPoint = [points[i], points[i + 1]];
      squaredEpsilon = n;
    }
  }

  return closestPoint;
}

function pointIsInsidePolygon(point, polygonPoints, epsilon, offset, count, size) {
  // ray-casting algorithm based on
  // http://wrf.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html
  var x = point.x;
  var y = point.y;
  var inside = false; // in first j is last point of polygon
  // for each segment of the polygon (j is i -1)

  for (var i = offset, j = offset + count - size; i < offset + count; j = i, i += size) {
    var xi = polygonPoints[i];
    var yi = polygonPoints[i + 1];
    var xj = polygonPoints[j];
    var yj = polygonPoints[j + 1];

    if (pointIsOverLine(point, [xi, yi, xj, yj], epsilon, 0, 4, 2)) {
      return true;
    } // isIntersect semi-infinite ray horizontally with polygon's edge


    if (yi > y != yj > y && x < (xj - xi) * (y - yi) / (yj - yi) + xi) {
      inside = !inside;
    }
  }

  return inside;
}

function isFeatureSingleGeometryUnderCoordinate(coordinate, type, coordinates, epsilon, offset, count, size) {
  if (type == _Feature.FEATURE_TYPES.LINE && pointIsOverLine(coordinate, coordinates, epsilon, offset, count, size)) {
    return true;
  } else if (type == _Feature.FEATURE_TYPES.POLYGON && pointIsInsidePolygon(coordinate, coordinates, epsilon, offset, count, size)) {
    return true;
  } else if (type == _Feature.FEATURE_TYPES.POINT) {
    var closestPoint = getClosestPoint(coordinate, coordinates, epsilon, offset, count, size);

    if (closestPoint) {
      return {
        coordinates: closestPoint
      };
    }
  }
}

function isFeatureUnderCoordinate(coordinate, feature, epsilon, result) {
  var featCoord = coordinate.as(feature.crs);

  var _iterator = _createForOfIteratorHelper(feature.geometries),
      _step;

  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var geometry = _step.value;

      if (geometry.extent == undefined || geometry.extent.isPointInside(featCoord, epsilon)) {
        var offset = geometry.indices[0].offset * feature.size;
        var count = geometry.indices[0].count * feature.size;
        var under = isFeatureSingleGeometryUnderCoordinate(featCoord, feature.type, feature.vertices, epsilon, offset, count, feature.size);

        if (under) {
          result.push({
            type: feature.type,
            geometry: geometry,
            coordinates: under.coordinates
            /* || coordinates */
            ,
            style: feature.style
          });
        }
      }
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
}

var coord = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var _default = {
  /**
   * Filter from a list of features, features that are under a coordinate.
   *
   * @param {Coordinates} coordinate - The coordinate for the filter
   * condition.
   * @param {Feature|FeatureCollection} collection - A single feature or a
   * collection of them, to filter given the previous coordinate.
   * @param {number} [epsilon=0.1] Tolerance around the coordinate (in
   * coordinate's unit).
   *
   * @return {Feature[]} Array of filtered features.
   */
  filterFeaturesUnderCoordinate: function filterFeaturesUnderCoordinate(coordinate, collection) {
    var epsilon = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0.1;
    var result = []; // transform coordinates to collection system projection

    coordinate.as(collection.crs, coord); // transform coordinates to local system

    coord.applyMatrix4(collection.matrixWorldInverse);

    if (collection.extent.isPointInside(coord, epsilon)) {
      if (collection.isFeatureCollection) {
        epsilon *= Math.sqrt(Math.pow(collection.scale.x, 2) + Math.pow(collection.scale.y, 2));

        var _iterator2 = _createForOfIteratorHelper(collection.features),
            _step2;

        try {
          for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
            var feature = _step2.value;

            if (feature.extent && !feature.extent.isPointInside(coord, epsilon)) {
              continue;
            }

            isFeatureUnderCoordinate(coord, feature, epsilon, result);
          }
        } catch (err) {
          _iterator2.e(err);
        } finally {
          _iterator2.f();
        }
      } else if (collection.geometries) {
        isFeatureUnderCoordinate(coord, collection, epsilon, result);
      }
    }

    return result;
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/OrientationUtils.js":
/*!***********************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/OrientationUtils.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _proj = _interopRequireDefault(__webpack_require__(/*! proj4 */ "./node_modules/proj4/lib/index.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var DEG2RAD = THREE.MathUtils.DEG2RAD;
var matrix = new THREE.Matrix4();
var north = new THREE.Vector3();
var east = new THREE.Vector3();
var axis = new THREE.Vector3().set(0, 0, 1);
var coord = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);
var euler = new THREE.Euler();
var quat = new THREE.Quaternion();

function quaternionIdentity(coordinates) {
  var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
  return coordinates ? target.set(0, 0, 0, 1) : quaternionIdentity;
}
/**
 * The OrientationUtils module provides methods to compute the quaternion that
 * models a rotation defined with various conventions, including between different
 * CRS.
 * The local <a href="https://en.wikipedia.org/wiki/Local_tangent_plane_coordinates#Local_east,_north,_up_(ENU)_coordinates">
 * East/North/Up frame (ENU)</a> is used as a pivot frame when computing the rotation between two distinct CRS.
 * If the origin of the frame is undefined, CRS-related methods precompute and return a function
 * that can be applied efficiently to many points of origin.
 * Otherwise, the target quaternion is returned at the provided origin coordinates.
 *
 * @example
 * // Compute the rotation around the point of origin from a frame aligned with Lambert93 axes (epsg:2154),
 * // to the geocentric frame (epsg:4978)
 * quat_crs2crs = OrientationUtils.quaternionFromCRSToCRS("EPSG:2154", "EPSG:4978")(origin);
 * // Compute the rotation of a sensor platform defined by its attitude
 * quat_attitude = OrientationUtils.quaternionFromAttitude(attitude);
 * // Compute the rotation from the sensor platform frame to the geocentric frame
 * quat = quat_crs2crs.multiply(quat_attitude);
 *
 * @module OrientationUtils
 */


var _default = {
  /**
   * @typedef {Object} Attitude
   * Properties are either defined as (omega, phi, kappa) or as (roll, pitch,
   * heading) or all `undefined`.
   *
   * @property {number} omega - angle in degrees
   * @property {number} phi - angle in degrees
   * @property {number} kappa - angle in degrees
   * @property {number} roll - angle in degrees
   * @property {number} pitch - angle in degrees
   * @property {number} heading - angle in degrees
   */

  /**
   * The transform from the platform frame to the local East, North, Up (ENU)
   * frame is `RotationZ(heading).RotationX(pitch).RotationY(roll)`
   *
   * @param {number} [roll=0] - angle in degrees
   * @param {number} [pitch=0] - angle in degrees
   * @param {number} [heading=0] - angle in degrees
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] - output Quaternion
   *
   * @return {THREE.Quaternion} target quaternion
   */
  quaternionFromRollPitchHeading: function quaternionFromRollPitchHeading() {
    var roll = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
    var pitch = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
    var heading = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
    var target = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : new THREE.Quaternion();
    roll *= DEG2RAD;
    pitch *= DEG2RAD;
    heading *= DEG2RAD; // return this.setFromEuler(euler.set(pitch, roll, heading , 'ZXY')).conjugate();

    return target.setFromEuler(euler.set(-pitch, -roll, -heading, 'YXZ')); // optimized version of above
  },

  /**
   * From
   * [DocMicMac](https://github.com/micmacIGN/Documentation/raw/master/DocMicMac.pdf),
   * the transform from the platform frame to the local East, North, Up (ENU)
   * frame is:
   *
   * ```
   * RotationX(omega).RotationY(phi).RotationZ(kappa).RotationX(PI)
   * RotationX(PI) <=> Quaternion(1,0,0,0) : converts between the 2 conventions for the camera local frame:
   * X right, Y bottom, Z front : convention in photogrammetry and computer vision
   * X right, Y top,    Z back  : convention in webGL, threejs
   * ```
   *
   * @param {number} [omega=0] - angle in degrees
   * @param {number} [phi=0] - angle in degrees
   * @param {number} [kappa=0] - angle in degrees
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   *
   * @return {THREE.Quaternion} target quaternion
   */
  quaternionFromOmegaPhiKappa: function quaternionFromOmegaPhiKappa() {
    var omega = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
    var phi = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
    var kappa = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
    var target = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : new THREE.Quaternion();
    omega *= DEG2RAD;
    phi *= DEG2RAD;
    kappa *= DEG2RAD;
    target.setFromEuler(euler.set(omega, phi, kappa, 'XYZ'));
    target.set(target.w, target.z, -target.y, -target.x); // <=> target.multiply(new THREE.Quaternion(1, 0, 0, 0));

    return target;
  },

  /**
   * Set the quaternion according to the rotation from the platform frame to
   * the local frame.
   *
   * @param {Attitude} attitude - Attitude
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   *
   * @return {THREE.Quaternion} target quaternion
   */
  quaternionFromAttitude: function quaternionFromAttitude(attitude) {
    var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();

    if (attitude.roll !== undefined || attitude.pitch !== undefined || attitude.heading !== undefined) {
      return this.quaternionFromRollPitchHeading(attitude.roll, attitude.pitch, attitude.heading, target);
    }

    if (attitude.omega !== undefined || attitude.phi !== undefined || attitude.kappa !== undefined) {
      return this.quaternionFromOmegaPhiKappa(attitude.omega, attitude.phi, attitude.kappa, target);
    }

    return target.set(0, 0, 0, 1);
  },

  /**
   * FunctionOrQuaternion is either a THREE.Quaternion or a function that accepts
   * arguments `(coordinates, target)` and returns the quaternion that models a rotation
   * around the point of origin. If target is not provided, a new quaternion is
   * created and returned instead.
   *
   * @typedef {function|THREE.Quaternion} FunctionOrQuaternion
   *
   * @property {Coordinates} coordinates the origin of the local East North Up
   * (ENU) frame
   * @property {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion.
  */

  /**
   * A Projection object models a Coordinate Reference System (CRS).
   * Such an object is usually created with proj4 using `proj4.defs(crs);`
   *
   * @typedef {Object} Projection
   *
   * @property {string} projName
   */

  /**
   * Set the quaternion according to the rotation from the local East North Up (ENU)
   * frame to the geocentric frame. The up direction of the ENU frame is
   * provided by the normalized geodetic normal of the provided coordinates
   * (geodeticNormal property).
   *
   * @param {Coordinates} [coordinates] the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
   */
  quaternionFromEnuToGeocent: function quaternionFromEnuToGeocent(coordinates) {
    var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();

    if (coordinates) {
      return this.quaternionFromEnuToGeocent()(coordinates, target);
    }

    return function (coordinates) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
      var up = coordinates.geodesicNormal;

      if (up.x == 0 && up.y == 0) {
        return target.set(0, 0, 0, 1);
      } // this is an optimized version of matrix.lookAt(up, new THREE.Vector3(0, 0, 0), new THREE.Vector3(0, 0, 1));


      east.set(-up.y, up.x, 0).normalize();
      north.crossVectors(up, east);
      matrix.makeBasis(east, north, up);
      return target.setFromRotationMatrix(matrix);
    };
  },

  /**
   * Set the quaternion according to the rotation from a geocentric frame
   * to the local East North Up (ENU) frame. The up direction of the ENU frame is
   * provided by the normalized geodetic normal of the provided coordinates
   * (geodeticNormal property).
   *
   * @param {Coordinates} [coordinates] the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
   */
  quaternionFromGeocentToEnu: function quaternionFromGeocentToEnu(coordinates) {
    var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();

    if (coordinates) {
      return this.quaternionFromGeocentToEnu()(coordinates, target);
    }

    var toGeocent = this.quaternionFromEnuToGeocent();
    return function (coordinates) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
      return toGeocent(coordinates, target).conjugate();
    };
  },

  /**
   * Computes the rotation from a Lambert Conformal Conic (LCC) frame to the local East North Up (ENU) frame.
   * The quaternion accounts for the
   * <a href="https://geodesie.ign.fr/contenu/fichiers/documentation/algorithmes/alg0060.pdf">meridian convergence</a>
   * between the ENU and LCC frames.
   * This is a generally small rotation around Z.
   *
   * @param {Projection} proj the lcc projection (may be parsed using proj4)
   * @param {number} proj.lat0 - the latitude of origin
   * @param {number} proj.long0 - the longitude of the central meridian
   * @param {Coordinates} [coordinates]  coordinates the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
  */
  quaternionFromLCCToEnu: function quaternionFromLCCToEnu(proj, coordinates) {
    var target = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new THREE.Quaternion();

    if (coordinates) {
      return this.quaternionFromLCCToEnu(proj)(coordinates, target);
    }

    var sinlat0 = Math.sin(proj.lat0);
    return function (coordinates) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();

      var _long = coordinates.as(coord.crs, coord).longitude * DEG2RAD;

      return target.setFromAxisAngle(axis, sinlat0 * (proj.long0 - _long));
    };
  },

  /**
   * Computes the rotation from the local East North Up (ENU) frame to a Lambert Conformal Conic (LCC) frame.
   * The quaternion accounts for the
   * <a href="https://geodesie.ign.fr/contenu/fichiers/documentation/algorithmes/alg0060.pdf">meridian convergence</a>
   * between the ENU and LCC frames.
   * This is a generally small rotation around Z.
   *
   * @param {Projection} proj the lcc projection (may be parsed using proj4)
   * @param {number} proj.lat0 - the latitude of origin
   * @param {number} proj.long0 - the longitude of the central meridian
   * @param {Coordinates} [coordinates]  coordinates the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
  */
  quaternionFromEnuToLCC: function quaternionFromEnuToLCC(proj, coordinates) {
    var target = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new THREE.Quaternion();

    if (coordinates) {
      return this.quaternionFromEnuToLCC(proj)(coordinates, target);
    }

    var fromLCC = this.quaternionFromLCCToEnu(proj);
    return function (coordinates) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
      return fromLCC(coordinates, target).conjugate();
    };
  },

  /**
   * Computes the rotation from a Transverse Mercator frame (TMerc) to the local East North Up (ENU) frame.
   * The quaternion accounts for the
   * <a href="https://geodesie.ign.fr/contenu/fichiers/documentation/algorithmes/alg0061.pdf">meridian convergence</a>
   * between the ENU and TMerc frames.
   * This is a generally small rotation around Z.
   *
   * @param {Projection} proj the tmerc projection (may be parsed using proj4)
   * @param {number} proj.e - the excentricity of the ellipsoid (supersedes {proj.a} and {proj.b})
   * @param {number} proj.a - the semimajor radius of the ellipsoid axis
   * @param {number} proj.b - the semiminor radius of the ellipsoid axis
   * @param {number} proj.long0 - the longitude of the central meridian
   *
   * @param {Coordinates} [coordinates]  coordinates the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
  */
  quaternionFromTMercToEnu: function quaternionFromTMercToEnu(proj, coordinates) {
    var target = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new THREE.Quaternion();

    if (coordinates) {
      return this.quaternionFromTMercToEnu(proj)(coordinates, target);
    }

    var a2 = proj.a * proj.a;
    var b2 = proj.b * proj.b;
    var e2 = proj.e * proj.e;
    var eta0 = proj.e ? e2 / (1 - e2) : a2 / b2 - 1;
    return function (coordinates) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
      coordinates.as(coord.crs, coord);

      var _long2 = coord.longitude * DEG2RAD;

      var lat = coord.latitude * DEG2RAD;
      var dlong = proj.long0 - _long2;
      var coslat = Math.cos(lat);
      var sinlat = Math.sin(lat);
      var coslat2 = coslat * coslat;
      var dl2 = dlong * dlong * coslat2;
      var eta2 = eta0 * coslat2;
      return target.setFromAxisAngle(axis, dlong * sinlat * (1 + dl2 / 3 * (1 + 3 * eta2 + 2 * eta2 * eta2) + dl2 * dl2 * (2 - sinlat / coslat) / 15));
    };
  },

  /**
   * Computes the rotation from the local East North Up (ENU) to a Transverse Mercator frame.
   * The quaternion accounts for the
   * <a href="https://geodesie.ign.fr/contenu/fichiers/documentation/algorithmes/alg0061.pdf">meridian convergence</a>
   * between the ENU and TMerc frames.
   * This is a generally small rotation around Z.
   *
   * @param {Projection} proj the tmerc projection (may be parsed using proj4)
   * @param {number} proj.e - the excentricity of the ellipsoid (supersedes
   * {proj.a} and {proj.b})
   * @param {number} proj.a - the semimajor radius of the ellipsoid axis
   * @param {number} proj.b - the semiminor radius of the ellipsoid axis
   * @param {number} proj.long0 - the longitude of the central meridian
   *
   * @param {Coordinates} [coordinates]  coordinates the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
  */
  quaternionFromEnuToTMerc: function quaternionFromEnuToTMerc(proj, coordinates) {
    var target = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new THREE.Quaternion();

    if (coordinates) {
      return this.quaternionFromEnuToTMerc(proj)(coordinates, target);
    }

    var fromTMerc = this.quaternionFromTMercToEnu(proj);
    return function (coordinates) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
      return fromTMerc(coordinates, target).conjugate();
    };
  },

  /**
   * Computes the rotation from a LongLat frame to the local East North Up (ENU) frame.
   * The identity quaternion (0,0,0,1) is returned, as longlat and ENU frame are assumed to be aligned.
   *
   * @param {Coordinates} [coordinates]  coordinates the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
   */
  quaternionFromLongLatToEnu: function quaternionFromLongLatToEnu(coordinates) {
    var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
    return quaternionIdentity(coordinates, target);
  },

  /**
  * Computes the rotation from the local East North Up (ENU) frame to a LongLat frame.
  * The identity quaternion (0,0,0,1) is returned, as longlat and ENU frame are assumed to be aligned.
   *
   * @param {Coordinates} [coordinates]  coordinates the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
   */
  quaternionFromEnuToLongLat: function quaternionFromEnuToLongLat(coordinates) {
    var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
    return quaternionIdentity(coordinates, target);
  },

  /**
   * Warns for an unimplemented projection, sets the quaternion to the
   * identity (0,0,0,1).
   *
   * @param {Projection} proj - the unimplemented projection (may be parsed
   * using proj4)
   *
   * @param {Coordinates} [coordinates]  coordinates the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
   */
  quaternionUnimplemented: function quaternionUnimplemented(proj, coordinates) {
    var target = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new THREE.Quaternion();
    console.warn('This quaternion function is not implemented for projections of type', proj.projName);
    return quaternionIdentity(coordinates, target);
  },

  /**
   * Compute the quaternion that models the rotation from the local East North
   * Up (ENU) frame to the frame of the given crs.
   *
   * @param {string|Projection} crsOrProj - the CRS of the target frame or its
   * proj4-compatible object.
   *
   * @param {Coordinates} [coordinates]  coordinates the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
   */
  quaternionFromEnuToCRS: function quaternionFromEnuToCRS(crsOrProj, coordinates) {
    var target = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new THREE.Quaternion();

    if (coordinates) {
      return this.quaternionFromEnuToCRS(crsOrProj)(coordinates, target);
    }

    var proj = crsOrProj.projName ? crsOrProj : _proj["default"].defs(crsOrProj);

    switch (proj.projName) {
      case 'geocent':
        return this.quaternionFromEnuToGeocent();

      case 'lcc':
        return this.quaternionFromEnuToLCC(proj);

      case 'tmerc':
        return this.quaternionFromEnuToTMerc(proj);

      case 'longlat':
        return this.quaternionFromEnuToLongLat();

      default:
        return this.quaternionUnimplemented(proj);
    }
  },

  /**
   * Compute the quaternion that models the rotation from the frame of the
   * given crs to the local East North Up (ENU) frame.
   *
   * @param {string|Projection} crsOrProj - the CRS of the source frame or its
   * proj4-compatible object.
   *
   * @param {Coordinates} [coordinates]  coordinates the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
   */
  quaternionFromCRSToEnu: function quaternionFromCRSToEnu(crsOrProj, coordinates) {
    var target = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new THREE.Quaternion();

    if (coordinates) {
      return this.quaternionFromCRSToEnu(crsOrProj)(coordinates, target);
    }

    var proj = crsOrProj.projName ? crsOrProj : _proj["default"].defs(crsOrProj);

    switch (proj.projName) {
      case 'geocent':
        return this.quaternionFromGeocentToEnu();

      case 'lcc':
        return this.quaternionFromLCCToEnu(proj);

      case 'tmerc':
        return this.quaternionFromTMercToEnu(proj);

      case 'longlat':
        return this.quaternionFromLongLatToEnu();

      default:
        return this.quaternionUnimplemented(proj);
    }
  },

  /**
   * Return the function that computes the quaternion that represents a
   * rotation of coordinates between two CRS frames.
   *
   * @param {string} crsIn - the CRS of the input frame.
   * @param {string} crsOut - the CRS of the output frame.
   * @param {Coordinates} [coordinates]  coordinates - the origin of the local East North Up
   * (ENU) frame
   * @param {THREE.Quaternion} [target=new THREE.Quaternion()] output Quaternion
   * @return {FunctionOrQuaternion} The target quaternion if coordinates is defined, otherwise, a function to compute it from coordinates.
  */
  quaternionFromCRSToCRS: function quaternionFromCRSToCRS(crsIn, crsOut, coordinates) {
    var target = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : new THREE.Quaternion();

    if (coordinates) {
      return this.quaternionFromCRSToCRS(crsIn, crsOut)(coordinates, target);
    }

    if (crsIn == crsOut) {
      return function () {
        var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
        return target.set(0, 0, 0, 1);
      };
    } // get rotations from the local East/North/Up (ENU) frame to both CRS.


    var fromCrs = this.quaternionFromCRSToEnu(crsIn);
    var toCrs = this.quaternionFromEnuToCRS(crsOut);
    return function (origin) {
      var target = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new THREE.Quaternion();
      return toCrs(origin, target).multiply(fromCrs(origin, quat));
    };
  }
};
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/Utf8Decoder.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/Utf8Decoder.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = exports.TextDecoder = void 0;

var _textEncodingUtf = __webpack_require__(/*! text-encoding-utf-8 */ "./node_modules/text-encoding-utf-8/lib/encoding.lib.js");

var TextDecoder = typeof __webpack_require__.g.TextDecoder === 'function' ? __webpack_require__.g.TextDecoder : _textEncodingUtf.TextDecoder;
exports.TextDecoder = TextDecoder;

var _default = new TextDecoder('utf-8');

exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/gui/Main.js":
/*!***************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/gui/Main.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
Object.defineProperty(exports, "Minimap", ({
  enumerable: true,
  get: function get() {
    return _Minimap["default"];
  }
}));
Object.defineProperty(exports, "Navigation", ({
  enumerable: true,
  get: function get() {
    return _Navigation["default"];
  }
}));
Object.defineProperty(exports, "Scale", ({
  enumerable: true,
  get: function get() {
    return _Scale["default"];
  }
}));
Object.defineProperty(exports, "Searchbar", ({
  enumerable: true,
  get: function get() {
    return _Searchbar["default"];
  }
}));

var _Navigation = _interopRequireDefault(__webpack_require__(/*! ./Navigation */ "./node_modules/itowns/lib/Utils/gui/Navigation.js"));

var _Minimap = _interopRequireDefault(__webpack_require__(/*! ./Minimap */ "./node_modules/itowns/lib/Utils/gui/Minimap.js"));

var _Scale = _interopRequireDefault(__webpack_require__(/*! ./Scale */ "./node_modules/itowns/lib/Utils/gui/Scale.js"));

var _Searchbar = _interopRequireDefault(__webpack_require__(/*! ./Searchbar */ "./node_modules/itowns/lib/Utils/gui/Searchbar.js"));

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/gui/Minimap.js":
/*!******************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/gui/Minimap.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

var _MainLoop = __webpack_require__(/*! ../../Core/MainLoop */ "./node_modules/itowns/lib/Core/MainLoop.js");

var _PlanarView = _interopRequireDefault(__webpack_require__(/*! ../../Core/Prefab/PlanarView */ "./node_modules/itowns/lib/Core/Prefab/PlanarView.js"));

var _Camera = __webpack_require__(/*! ../../Renderer/Camera */ "./node_modules/itowns/lib/Renderer/Camera.js");

var _Widget2 = _interopRequireDefault(__webpack_require__(/*! ./Widget */ "./node_modules/itowns/lib/Utils/gui/Widget.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var DEFAULT_OPTIONS = {
  minScale: 1 / 500000,
  maxScale: 1 / 5E8,
  zoomRatio: 1 / 30,
  width: 150,
  height: 150,
  position: 'bottom-left'
};
/**
 * A widget for minimap
 *
 * To use it, you need to link the widgets' stylesheet to your html webpage. This stylesheet is included in
 * [itowns bundles](https://github.com/iTowns/itowns/releases) if you downloaded them, or it can be found in
 * `node_modules/itowns/examples/css` if you installed iTowns with npm. Otherwise, it can be found at
 * [this link](https://raw.githubusercontent.com/iTowns/itowns/master/examples/css/widgets.css). See
 * [this example](http://www.itowns-project.org/itowns/examples/#widgets_minimap) for more details.
 *
 * @extends Widget
 *
 * @property    {HTMLElement}   domElement      An html div containing the minimap.
 * @property    {HTMLElement}   parentElement   The parent HTML container of `this.domElement`.
 */

var Minimap = /*#__PURE__*/function (_Widget) {
  (0, _inherits2["default"])(Minimap, _Widget);

  var _super = _createSuper(Minimap);

  /**
   * @param   {GlobeView}             view                                    The iTowns view the minimap should be
                                                                              * linked to. Only {@link GlobeView} is
                                                                              * supported at the moment.
   * @param   {ColorLayer}            layer                                   The {@link ColorLayer} that should be
                                                                              * displayed on the minimap.
   * @param   {Object}                [options]                               The minimap optional configuration.
   * @param   {HTMLElement}           [options.parentElement=view.domElement] The parent HTML container of the div
                                                                              * which contains minimap widgets.
   * @param   {number}                [options.size]                          The size of the minimap. It is a number
                                                                              * that describes both width and height
                                                                              * in pixels of the minimap.
   * @param   {number}                [options.width=150]                     The width in pixels of the minimap.
   * @param   {number}                [options.height=150]                    The height in pixels of the minimap.
   * @param   {string}                [options.position='bottom-left']        Defines which position within the
                                                                              * `parentElement` the minimap should be
                                                                              * displayed to. Possible values are
                                                                              * `top`, `bottom`, `left`, `right`,
                                                                              * `top-left`, `top-right`, `bottom-left`
                                                                              * and `bottom-right`. If the input value
                                                                              * does not match one of these, it will
                                                                              * be defaulted to `bottom-left`.
   * @param   {Object}                [options.translate]                     An optional translation of the minimap.
   * @param   {number}                [options.translate.x=0]                 The minimap translation along the page
                                                                              * x-axis.
   * @param   {number}                [options.translate.y=0]                 The minimap translation along the page
                                                                              * y-axis.
   * @param   {HTMLElement|string}    [options.cursor]                        An html element or an HTML string
                                                                              * describing a cursor showing minimap
                                                                              * view camera target position at the
                                                                              * center of the minimap.
   * @param   {number}                [options.minScale=1/2000]               The minimal scale the minimap can reach.
   * @param   {number}                [options.maxScale=1/1_250_000]          The maximal scale the minimap can reach.
   * @param   {number}                [options.zoomRatio=1/30]                The ratio between minimap camera zoom
                                                                              * and view camera zoom.
   * @param   {number}                [options.pitch=0.28]                    The screen pixel pitch, used to compute
                                                                              * view and minimap scale.
   */
  function Minimap(view, layer) {
    var _this;

    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    (0, _classCallCheck2["default"])(this, Minimap);

    // ---------- BUILD PROPERTIES ACCORDING TO DEFAULT OPTIONS AND OPTIONS PASSED IN PARAMETERS : ----------
    if (!view.isGlobeView) {
      throw new Error('\'Minimap\' plugin only supports \'GlobeView\'. Therefore, the \'view\' parameter must be a ' + '\'GlobeView\'.');
    }

    if (!layer.isColorLayer) {
      throw new Error('\'layer\' parameter form \'Minimap\' constructor should be a \'ColorLayer\'.');
    }

    _this = _super.call(this, view, options, DEFAULT_OPTIONS);
    _this.minScale = options.minScale || DEFAULT_OPTIONS.minScale;
    _this.maxScale = options.maxScale || DEFAULT_OPTIONS.maxScale; // TODO : it could be interesting to be able to specify a method as zoomRatio parameter. This method could
    //  return a zoom ratio from the scale of the minimap.

    _this.zoomRatio = options.zoomRatio || DEFAULT_OPTIONS.zoomRatio; // ---------- this.domElement SETTINGS SPECIFIC TO MINIMAP : ----------

    _this.domElement.id = 'widgets-minimap'; // Display a cursor at the center of the minimap, if requested.

    if (options.cursor) {
      // Wrap cursor domElement inside a div to center it in minimap.
      var cursorWrapper = document.createElement('div');
      cursorWrapper.id = 'cursor-wrapper';

      _this.domElement.appendChild(cursorWrapper); // Add specified cursor to its wrapper.


      if (typeof options.cursor === 'string') {
        cursorWrapper.innerHTML = options.cursor;
      } else if (options.cursor instanceof HTMLElement) {
        cursorWrapper.appendChild(options.cursor);
      }
    } // ---------- CREATE A MINIMAP View AND DISPLAY DATA PASSED IN Layer PARAMETER : ----------


    _this.view = new _PlanarView["default"](_this.domElement, layer.source.extent, {
      camera: {
        type: _Camera.CAMERA_TYPE.ORTHOGRAPHIC
      },
      placement: layer.source.extent,
      // TODO : the default placement should be the view extent for ortho camera
      noControls: true,
      maxSubdivisionLevel: view.tileLayer.maxSubdivisionLevel
    });

    _this.view.addLayer(layer); // TODO : should this promise be returned by constructor so that user can use it ?
    // Give the focus back to the main view. Indeed, `View` constructor takes the focus, and we don't want the focus
    // on the latest created `View`, which is the minimap view.


    view.domElement.focus(); // Prevent the minimap domElement to get focus when clicked, and prevent click event to be propagated to the
    // main view controls.

    _this.domElement.addEventListener('pointerdown', function (event) {
      event.preventDefault();
    }); // Store minimap view camera3D in constant for code convenience.


    var camera3D = _this.view.camera.camera3D; // ---------- UPDATE MINIMAP VIEW WHEN UPDATING THE MAIN VIEW : ----------
    // The minimal and maximal value the minimap camera3D zoom can reach in order to stay in the scale limits.

    var initialScale = _this.view.getScale(options.pitch);

    var minZoom = camera3D.zoom * _this.maxScale / initialScale;
    var maxZoom = camera3D.zoom * _this.minScale / initialScale; // Coordinates used to transform position vectors from the main view CRS to the minimap view CRS.

    var mainViewCoordinates = new _Coordinates["default"](view.referenceCrs);
    var viewCoordinates = new _Coordinates["default"](_this.view.referenceCrs);
    var targetPosition = view.controls.getCameraTargetPosition();
    view.addFrameRequester(_MainLoop.MAIN_LOOP_EVENTS.AFTER_RENDER, function () {
      // Update minimap camera zoom
      var distance = view.camera.camera3D.position.distanceTo(targetPosition);
      var scale = view.getScaleFromDistance(options.pitch, distance);
      camera3D.zoom = _this.zoomRatio * maxZoom * scale / _this.minScale;
      camera3D.zoom = Math.min(Math.max(camera3D.zoom, minZoom), maxZoom);
      camera3D.updateProjectionMatrix(); // Update minimap camera position.

      mainViewCoordinates.setFromVector3(view.controls.getCameraTargetPosition());
      mainViewCoordinates.as(_this.view.referenceCrs, viewCoordinates);
      camera3D.position.x = viewCoordinates.x;
      camera3D.position.y = viewCoordinates.y;
      camera3D.updateMatrixWorld(true);

      _this.view.notifyChange(camera3D);
    });
    return _this;
  }

  return (0, _createClass2["default"])(Minimap);
}(_Widget2["default"]);

var _default = Minimap;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/gui/Navigation.js":
/*!*********************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/gui/Navigation.js ***!
  \*********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classPrivateFieldSet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldSet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

var _View = __webpack_require__(/*! ../../Core/View */ "./node_modules/itowns/lib/Core/View.js");

var _Widget2 = _interopRequireDefault(__webpack_require__(/*! ./Widget */ "./node_modules/itowns/lib/Utils/gui/Widget.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _classPrivateMethodInitSpec(obj, privateSet) { _checkPrivateRedeclaration(obj, privateSet); privateSet.add(obj); }

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

function _classPrivateMethodGet(receiver, privateSet, fn) { if (!privateSet.has(receiver)) { throw new TypeError("attempted to get private field on non-instance"); } return fn; }

var DEFAULT_OPTIONS = {
  displayCompass: true,
  display3DToggle: true,
  displayZoomIn: true,
  displayZoomOut: true,
  animationDuration: 500,
  position: 'bottom-left',
  direction: 'column'
};
var DEFAULT_BUTTONS = {
  compass: {
    id: 'compass',
    content: '',
    info: 'Rotate the camera to face North',
    parentId: 'widgets'
  },
  toggle3D: {
    id: '3d-button',
    content: '3D',
    info: 'Tilt the camera'
  },
  zoomIn: {
    id: 'zoom-in-button',
    content: '<span class="widget-zoom-button-logo"></span>',
    info: 'Zoom in',
    parentId: 'zoom-button-bar'
  },
  zoomOut: {
    id: 'zoom-out-button',
    content: '<span id="zoom-out-logo" class="widget-zoom-button-logo"></span>',
    info: 'Zoom out',
    parentId: 'zoom-button-bar'
  }
};
/**
 * A widget menu manager for navigation.
 *
 * To use it, you need to link the widgets' stylesheet to your html webpage. This stylesheet is included in
 * [itowns bundles](https://github.com/iTowns/itowns/releases) if you downloaded them, or it can be found in
 * `node_modules/itowns/examples/css` if you installed iTowns with npm. Otherwise, it can be found at
 * [this link](https://raw.githubusercontent.com/iTowns/itowns/master/examples/css/widgets.css). See
 * [this example](http://www.itowns-project.org/itowns/examples/#widgets_navigation) for more details.
 *
 * @extends Widget
 *
 * @property {HTMLElement}          domElement      An html div containing all navigation widgets.
 * @property {HTMLElement}          parentElement   The parent HTML container of `this.domElement`.
 * @property {HTMLButtonElement}    compass         The HTML button for the compass.
 * @property {HTMLButtonElement}    toggle3D        The HTML button for the 3D/2D toggle button.
 * @property {HTMLButtonElement}    zoomIn          The HTML button for the zoom-in button.
 * @property {HTMLButtonElement}    zoomOut         The HTML button for the zoom-out button.
 *
 * @example
 * // Create a Navigation widget in the bottom-right corner of an iTowns view domElement
 * const navigation = new Navigation(view, { position: 'bottom-right' };
 *
 * // Change the tooltip for the compass :
 * navigation.compass.title = 'new tooltip';
 *
 * // Change the method ran when clicking zoom-in button :
 * function newMethod() {
 *     // do something
 * }
 * navigation.zoomIn.onclick = newMethod;
 */

var _view = /*#__PURE__*/new WeakMap();

var _action = /*#__PURE__*/new WeakSet();

var _addDefaultButton = /*#__PURE__*/new WeakSet();

var Navigation = /*#__PURE__*/function (_Widget) {
  (0, _inherits2["default"])(Navigation, _Widget);

  var _super = _createSuper(Navigation);

  /**
   * @param   {GlobeView}     view                                    The iTowns view the navigation should be linked
                                                                      * to. For the moment, only `{@link GlobeView}`
                                                                      * is supported.
   * @param   {Object}        options                                 The navigation menu optional configuration.
   * @param   {HTMLElement}   [options.parentElement=view.domElement] The parent HTML container of the div which
                                                                      * contains navigation widgets.
   * @param   {boolean}       [options.displayCompass=true]           Whether the compass widget should be displayed.
   * @param   {boolean}       [options.display3DToggle=true]          Whether the navigation should include a widget
                                                                      * to toggle between top and oblique view.
   * @param   {boolean}       [options.displayZoomIn=true]            Whether the zoom-in widget should be displayed.
   * @param   {boolean}       [options.displayZoomOut=true]           Whether the zoom-out widget should be displayed.
   * @param   {number}        [options.animationDuration=500]         The duration of travel animations, when clicking
                                                                      * navigation widgets.
   * @param   {string}        [options.position='bottom-left']        Defines which corner of the `parentElement` the
                                                                      * navigation menu should be displayed to.
                                                                      * Possible values are `top-left`, `top-right`,
                                                                      * `bottom-left` and `bottom-right`. If the input
                                                                      * value does not match one of these, it will be
                                                                      * defaulted to `bottom-left`.
   * @param   {string}        [options.direction='column']            Whether the navigation menu should expand
                                                                      * horizontally or vertically. Possible values
                                                                      * are `column` and `row`. If the input value
                                                                      * does not match one of these, it will be
                                                                      * defaulted to `column`.
   * @param   {Object}        [options.translate]                     An optional translation of the navigation menu.
   * @param   {number}        [options.translate.x=0]                 The navigation menu translation along the page
                                                                      * x-axis.
   * @param   {number}        [options.translate.y=0]                 The navigation menu translation along the page
                                                                      * y-axis.
   */
  function Navigation(view) {
    var _options$displayCompa, _options$display3DTog, _options$displayZoomI, _options$displayZoomO;

    var _this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, Navigation);

    // ---------- BUILD PROPERTIES ACCORDING TO DEFAULT OPTIONS AND OPTIONS PASSED IN PARAMETERS : ----------
    // Check if the view is supported.
    if (!view.isGlobeView) {
      throw new Error('\'Navigation\' plugin only supports \'GlobeView\'. Therefore, the \'view\' parameter must be a ' + '\'GlobeView\'.');
    } // `top`, `bottom`, `left` and `right` values for `position` option are not relevant for navigation widget.


    if (['top', 'bottom', 'left', 'right'].includes(options.position)) {
      console.warn('\'position\' optional parameter for \'Navigation\' is not a valid option. ' + "It will be set to '".concat(DEFAULT_OPTIONS.position, "'."));
      options.position = DEFAULT_OPTIONS.position;
    }

    _this = _super.call(this, view, options, DEFAULT_OPTIONS);

    _classPrivateMethodInitSpec((0, _assertThisInitialized2["default"])(_this), _addDefaultButton);

    _classPrivateMethodInitSpec((0, _assertThisInitialized2["default"])(_this), _action);

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _view, {
      writable: true,
      value: void 0
    });

    (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _view, view);
    _this.direction = options.direction || DEFAULT_OPTIONS.direction;

    if (!['column', 'row'].includes(_this.direction)) {
      console.warn('\'direction\' optional parameter for \'Navigation\' constructor is not a valid option. ' + "It will be set to '".concat(DEFAULT_OPTIONS.direction, "'."));
      _this.direction = DEFAULT_OPTIONS.direction;
    }

    _this.animationDuration = options.animationDuration === undefined ? DEFAULT_OPTIONS.animationDuration : options.animationDuration; // ---------- CREATE A DomElement WITH id AND classes RELEVANT TO THE WIDGET PROPERTIES : ----------
    // Create a div containing all widgets and add it to its specified parent.

    _this.domElement.id = 'widgets-navigation'; // Position widget div according to options.

    _this.domElement.classList.add("".concat(_this.direction, "-widget")); // ---------- CREATE THE DEFAULT WIDGETS IF NOT HIDDEN (COMPASS, 3D AND ZOOM BUTTONS) : ----------
    // Add a compass widget if requested.


    if ((_options$displayCompa = options.displayCompass) !== null && _options$displayCompa !== void 0 ? _options$displayCompa : DEFAULT_OPTIONS.displayCompass) {
      _this.compass = _classPrivateMethodGet((0, _assertThisInitialized2["default"])(_this), _addDefaultButton, _addDefaultButton2).call((0, _assertThisInitialized2["default"])(_this), DEFAULT_BUTTONS.compass, function () {
        _classPrivateMethodGet((0, _assertThisInitialized2["default"])(_this), _action, _action2).call((0, _assertThisInitialized2["default"])(_this), {
          heading: 0,
          tilt: 89.5
        });
      }); // Manage compass rotation when the view's camera is moved.

      view.addEventListener(_View.VIEW_EVENTS.CAMERA_MOVED, function (event) {
        _this.compass.style.transform = "rotate(".concat(-event.heading, "deg)");
      });
    } // Add a 3D toggle button if requested.


    if ((_options$display3DTog = options.display3DToggle) !== null && _options$display3DTog !== void 0 ? _options$display3DTog : DEFAULT_OPTIONS.display3DToggle) {
      _this.toggle3D = _classPrivateMethodGet((0, _assertThisInitialized2["default"])(_this), _addDefaultButton, _addDefaultButton2).call((0, _assertThisInitialized2["default"])(_this), DEFAULT_BUTTONS.toggle3D, function () {
        _classPrivateMethodGet((0, _assertThisInitialized2["default"])(_this), _action, _action2).call((0, _assertThisInitialized2["default"])(_this), {
          tilt: (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _view).controls.getTilt() < 89 ? 89.5 : 40
        });
      }); // Manage button content toggle when the view's camera is moved.

      view.addEventListener(_View.VIEW_EVENTS.CAMERA_MOVED, function (event) {
        _this.toggle3D.innerHTML = event.tilt < 89 ? '2D' : '3D';
      });
    } // Add a zoom-in button if requested.


    if ((_options$displayZoomI = options.displayZoomIn) !== null && _options$displayZoomI !== void 0 ? _options$displayZoomI : DEFAULT_OPTIONS.displayZoomIn) {
      _this.zoomIn = _classPrivateMethodGet((0, _assertThisInitialized2["default"])(_this), _addDefaultButton, _addDefaultButton2).call((0, _assertThisInitialized2["default"])(_this), DEFAULT_BUTTONS.zoomIn, function () {
        _classPrivateMethodGet((0, _assertThisInitialized2["default"])(_this), _action, _action2).call((0, _assertThisInitialized2["default"])(_this), {
          zoom: Math.min(20, (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _view).controls.getZoom() + 1)
        });
      });
    } // Add a zoom-out button if requested.


    if ((_options$displayZoomO = options.displayZoomOut) !== null && _options$displayZoomO !== void 0 ? _options$displayZoomO : DEFAULT_OPTIONS.displayZoomOut) {
      _this.zoomOut = _classPrivateMethodGet((0, _assertThisInitialized2["default"])(_this), _addDefaultButton, _addDefaultButton2).call((0, _assertThisInitialized2["default"])(_this), DEFAULT_BUTTONS.zoomOut, function () {
        _classPrivateMethodGet((0, _assertThisInitialized2["default"])(_this), _action, _action2).call((0, _assertThisInitialized2["default"])(_this), {
          zoom: Math.max(3, (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _view).controls.getZoom() - 1)
        });
      });
    }

    return _this;
  }
  /**
   *
   * @param   {string}    id              The unique id the created button should be given.
   * @param   {string}    [content='']    An HTML string defining the content of the button.
   * @param   {string}    [title='']      An HTML string defining information on the button. This string will be
                                          * displayed in a tooltip when hovering the button.
   * @param   {function}  [onclick] The method that should be executed when the button is clicked on.
   * @param   {string}    [parentId]      The unique id of a button bar in which the created button should be added.
                                          * A button bar is a group which contains one or several buttons. All
                                          * buttons created with Navigation are in a button bar. If the given id does
                                          * not match an already existing button bar, a new button bar will be created
                                          * with this id. If no id is given, a button bar will be created with no id.
                                          * The later case can be useful for creating isolated buttons.
   *
   * @returns {HTMLButtonElement}     The created button.
   */


  (0, _createClass2["default"])(Navigation, [{
    key: "addButton",
    value: function addButton(id) {
      var _this2 = this;

      var content = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
      var title = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '';
      var onclick = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : function () {};
      var parentId = arguments.length > 4 ? arguments[4] : undefined;
      var buttonBar = document.getElementById(parentId);

      if (!buttonBar) {
        buttonBar = this.addButtonBar(parentId);
      }

      var button = document.createElement('button');
      button.className = 'widget-button';
      button.id = id;
      button.innerHTML = content;
      button.title = title;
      button.onclick = onclick;
      buttonBar.appendChild(button); // The buttons must not be focused using tab key.

      button.tabIndex = -1; // When releasing the mouse after clicking the button, we give the focus back to the view. Therefore, we can use
      // key events on the view without having to click the view to grant it focus.

      window.addEventListener('pointerup', function () {
        if (document.activeElement === button) {
          (0, _classPrivateFieldGet2["default"])(_this2, _view).domElement.focus();
        }
      });
      return button;
    }
  }, {
    key: "addButtonBar",
    value: function addButtonBar(id) {
      var buttonBar = document.createElement('div');
      buttonBar.className = 'widget-button-bar';

      if (id) {
        buttonBar.id = id;
      }

      this.domElement.appendChild(buttonBar);
      return buttonBar;
    }
  }]);
  return Navigation;
}(_Widget2["default"]);

function _action2(params) {
  params.time = this.animationDuration;
  return (0, _classPrivateFieldGet2["default"])(this, _view).controls.lookAtCoordinate(params);
}

function _addDefaultButton2(settings, onclick) {
  return this.addButton(settings.id, settings.content, settings.info, onclick, settings.parentId);
}

var _default = Navigation;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/gui/Scale.js":
/*!****************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/gui/Scale.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _GlobeControls = __webpack_require__(/*! ../../Controls/GlobeControls */ "./node_modules/itowns/lib/Controls/GlobeControls.js");

var _GlobeView = __webpack_require__(/*! ../../Core/Prefab/GlobeView */ "./node_modules/itowns/lib/Core/Prefab/GlobeView.js");

var _PlanarControls = __webpack_require__(/*! ../../Controls/PlanarControls */ "./node_modules/itowns/lib/Controls/PlanarControls.js");

var _View = __webpack_require__(/*! ../../Core/View */ "./node_modules/itowns/lib/Core/View.js");

var _Widget2 = _interopRequireDefault(__webpack_require__(/*! ./Widget */ "./node_modules/itowns/lib/Utils/gui/Widget.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var DEFAULT_OPTIONS = {
  width: 200,
  height: 30,
  position: 'bottom-left'
};
/**
 * A widget for scale
 *
 * To use it, you need to link the widgets' stylesheet to your html webpage. This stylesheet is included in
 * [itowns bundles](https://github.com/iTowns/itowns/releases) if you downloaded them, or it can be found in
 * `node_modules/itowns/examples/css` if you installed iTowns with npm. Otherwise, it can be found at
 * [this link](https://raw.githubusercontent.com/iTowns/itowns/master/examples/css/widgets.css). See
 * [this example](http://www.itowns-project.org/itowns/examples/#widgets_scale) for more details.
 *
 * @extends Widget
 *
 * @property    {HTMLElement}   domElement      An html div containing the scale.
 * @property    {HTMLElement}   parentElement   The parent HTML container of `this.domElement`.
 */

var Scale = /*#__PURE__*/function (_Widget) {
  (0, _inherits2["default"])(Scale, _Widget);

  var _super = _createSuper(Scale);

  /**
   * @param   {View}                  view                                    The iTowns view the scale should be
                                                                              * linked to. If it is a
                                                                              * {@link PlanarView} or a
                                                                              * {@link GlobeView}, the scale will be
                                                                              * automatically updated. Otherwise, user
                                                                              * will need to implement the update
                                                                              * automation using the `Scale.update`
                                                                              * method.
   * @param   {Object}                [options]                               The scale optional configuration.
   * @param   {HTMLElement}           [options.parentElement=view.domElement] The parent HTML container of the div
                                                                              * which contains scale widgets.
   * @param   {number}                [options.width=200]                     The width in pixels of the scale.
   * @param   {number}                [options.height=30]                     The height in pixels of the scale.
   * @param   {string}                [options.position='bottom-left']        Defines which position within the
                                                                              * `parentElement` the scale should be
                                                                              * displayed to. Possible values are
                                                                              * `top`, `bottom`, `left`, `right`,
                                                                              * `top-left`, `top-right`, `bottom-left`
                                                                              * and `bottom-right`. If the input value
                                                                              * does not match one of these, it will
                                                                              * be defaulted to `bottom-left`.
   * @param   {Object}                [options.translate]                     An optional translation of the scale.
   * @param   {number}                [options.translate.x=0]                 The scale translation along the page
                                                                              * x-axis.
   * @param   {number}                [options.translate.y=0]                 The scale translation along the page
                                                                              * y-axis.
   */
  function Scale(view) {
    var _this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    (0, _classCallCheck2["default"])(this, Scale);
    // ---------- BUILD PROPERTIES ACCORDING TO DEFAULT OPTIONS AND OPTIONS PASSED IN PARAMETERS : ----------
    _this = _super.call(this, view, options, DEFAULT_OPTIONS); // ---------- this.domElement SETTINGS SPECIFIC TO SCALE : ----------

    _this.domElement.id = 'widgets-scale';
    _this.view = view; // Initialize the text content of the scale, which will later be updated by a numerical value.

    _this.domElement.innerHTML = 'Scale';
    _this.width = options.width || DEFAULT_OPTIONS.width;

    if (_this.view.isGlobeView) {
      _this.view.addEventListener(_GlobeView.GLOBE_VIEW_EVENTS.GLOBE_INITIALIZED, function () {
        _this.update();
      });

      _this.view.controls.addEventListener(_GlobeControls.CONTROL_EVENTS.RANGE_CHANGED, function () {
        _this.update();
      });
    } else if (_this.view.isPlanarView) {
      _this.view.addEventListener(_View.VIEW_EVENTS.INITIALIZED, function () {
        _this.update();
      });

      _this.view.addEventListener(_PlanarControls.PLANAR_CONTROL_EVENT.MOVED, function () {
        _this.update();
      });
    } else {
      console.warn('The \'view\' linked to scale widget is neither a \'GlobeView\' nor a \'PlanarView\'. The ' + 'scale wont automatically update. You can implement its update automation using \'Scale.update\' ' + 'method.');
    }

    return _this;
  }

  (0, _createClass2["default"])(Scale, [{
    key: "addEventListeners",
    value: function addEventListeners() {}
    /**
     * Update the scale size and content according to view camera position.
     */

  }, {
    key: "update",
    value: function update() {
      // Calculate the rounded metric distance which matches the scale width in pixels.
      var metricDistance = Math.round(this.view.getPixelsToMeters(this.width));
      var digit = Math.pow(10, metricDistance.toString().length - 1);
      metricDistance = Math.round(metricDistance / digit) * digit;
      var pixelDistance = this.view.getMetersToPixels(metricDistance);
      var unit = 'm';

      if (metricDistance >= 1000) {
        metricDistance /= 1000;
        unit = 'km';
      }

      this.domElement.innerHTML = "".concat(metricDistance, " ").concat(unit);
      this.domElement.style.width = "".concat(pixelDistance, "px");
    }
  }]);
  return Scale;
}(_Widget2["default"]);

var _default = Scale;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/gui/Searchbar.js":
/*!********************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/gui/Searchbar.js ***!
  \********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _assertThisInitialized2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/assertThisInitialized */ "./node_modules/@babel/runtime/helpers/assertThisInitialized.js"));

var _inherits2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/inherits */ "./node_modules/@babel/runtime/helpers/inherits.js"));

var _possibleConstructorReturn2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/possibleConstructorReturn */ "./node_modules/@babel/runtime/helpers/possibleConstructorReturn.js"));

var _getPrototypeOf2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/getPrototypeOf */ "./node_modules/@babel/runtime/helpers/getPrototypeOf.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

var _classPrivateFieldSet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldSet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js"));

var _Fetcher = _interopRequireDefault(__webpack_require__(/*! ../../Provider/Fetcher */ "./node_modules/itowns/lib/Provider/Fetcher.js"));

var _Widget2 = _interopRequireDefault(__webpack_require__(/*! ./Widget */ "./node_modules/itowns/lib/Utils/gui/Widget.js"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

var DEFAULT_OPTIONS = {
  width: 300,
  height: 38,
  position: 'top',
  maxSuggestionNumber: 10,
  fontSize: 16,
  placeholder: 'Search location'
};

function addActive(htmlElements, index) {
  var _htmlElements$index;

  if (!htmlElements) {
    return index;
  }

  removeAllActives(htmlElements);

  if (index >= htmlElements.length) {
    index = 0;
  } else if (index < 0) {
    index = htmlElements.length - 1;
  }

  (_htmlElements$index = htmlElements[index]) === null || _htmlElements$index === void 0 ? void 0 : _htmlElements$index.classList.add('active');
  return index;
}

function removeAllActives(htmlElements) {
  for (var i = 0; i < htmlElements.length; i++) {
    htmlElements[i].classList.remove('active');
  }
}

function eraseSuggestionList(form) {
  while (form.children.length > 1) {
    form.removeChild(form.lastChild);
  }
}
/**
 * A widget for searchbar
 *
 * To use it, you need to link the widgets' stylesheet to your html webpage. This stylesheet is included in
 * [itowns bundles](https://github.com/iTowns/itowns/releases) if you downloaded them, or it can be found in
 * `node_modules/itowns/examples/css` if you installed iTowns with npm. Otherwise, it can be found at
 * [this link](https://raw.githubusercontent.com/iTowns/itowns/master/examples/css/widgets.css). See
 * [this example](http://www.itowns-project.org/itowns/examples/#widgets_searchbar) for more details.
 *
 * @extends Widget
 *
 * @property    {HTMLElement}   domElement      An html div containing the searchbar.
 * @property    {HTMLElement}   parentElement   The parent HTML container of `this.domElement`.
 */


var _onSelected = /*#__PURE__*/new WeakMap();

var Searchbar = /*#__PURE__*/function (_Widget) {
  (0, _inherits2["default"])(Searchbar, _Widget);

  var _super = _createSuper(Searchbar);

  /**
   * @param   {View}          view                                    The iTowns view the searchbar should be linked
                                                                      * to.
   *
   * @param   {Object}        geocodingOptions                        Configuration for geocoding.
   * @param   {URL}           geocodingOptions.url                    The URL of a geocoding service that should be
                                                                      * used to build suggestions.
   * @param   {function}      geocodingOptions.parser                 A method to parse fetched results from geocoding
                                                                      * url into a Map object. For each entry of this
                                                                      * Map, the key must be a string that will be
                                                                      * displayed as the html content of each
                                                                      * suggestion bellow the searchbar. The value
                                                                      * associated to the key is whatever the user
                                                                      * wants. The value is the parameter that is
                                                                      * passed to the `onSelected` method (specified
                                                                      * in another `geocodingOptions` parameter).
   * @param   {function}      [geocodingOptions.onSelected]           A method which describes what should be done
                                                                      * when user selects a location (by clicking or
                                                                      * hitting enter on a suggestion). The only
                                                                      * parameter of this method is the value mapped
                                                                      * with `geocodingOptions.parser` method.
   *
   * @param   {Object}        [options]                               The searchbar optional configuration.
   * @param   {HTMLElement}   [options.parentElement=view.domElement] The parent HTML container of the div which
                                                                      * contains searchbar widgets.
   * @param   {number}        [options.size]                          The size of the searchbar. It is a number that
                                                                      * describes both width and height in pixels of
                                                                      * the searchbar.
   * @param   {number}        [options.width=300]                     The width in pixels of the searchbar.
   * @param   {number}        [options.height=38]                     The height in pixels of the searchbar.
   * @param   {string}        [options.position='top']                Defines which position within the
                                                                      * `parentElement` the searchbar should be
                                                                      * displayed to. Possible values are `top`,
                                                                      * `bottom`, `left`, `right`, `top-left`,
                                                                      * `top-right`, `bottom-left` and `bottom-right`.
                                                                      * If the input value does not match one of
                                                                      * these, it will be defaulted to `top`.
   * @param   {Object}        [options.translate]                     An optional translation of the searchbar.
   * @param   {number}        [options.translate.x=0]                 The searchbar translation along the page x-axis.
   * @param   {number}        [options.translate.y=0]                 The searchbar translation along the page y-axis.
   * @param   {number}        [options.fontSize=16]                   The font size in pixel of the searchbar content.
   * @param   {number}        [options.maxSuggestionNumber=10]        The maximum number of suggestions that should
                                                                      * appear under the searchbar.
   * @param   {string}        [options.placeholder='Search location'] The placeholder that appears in the searchbar
                                                                      * when nothing has yet been typed.
   */
  function Searchbar(view, geocodingOptions) {
    var _geocodingOptions$onS;

    var _this;

    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    (0, _classCallCheck2["default"])(this, Searchbar);
    // ---------- BUILD PROPERTIES ACCORDING TO DEFAULT OPTIONS AND OPTIONS PASSED IN PARAMETERS : ----------
    _this = _super.call(this, view, options, DEFAULT_OPTIONS); // Check if `geocodingOptions` parameter was correctly specified.

    _classPrivateFieldInitSpec((0, _assertThisInitialized2["default"])(_this), _onSelected, {
      writable: true,
      value: void 0
    });

    if (!geocodingOptions || !geocodingOptions.url || !geocodingOptions.parser || typeof geocodingOptions.parser !== 'function') {
      throw new Error('\'geocodingOptions\' parameter for \'Searchbar\' constructor is not a valid option. Please refer to ' + 'the documentation.');
    }

    (0, _classPrivateFieldSet2["default"])((0, _assertThisInitialized2["default"])(_this), _onSelected, (_geocodingOptions$onS = geocodingOptions.onSelected) !== null && _geocodingOptions$onS !== void 0 ? _geocodingOptions$onS : function () {}); // ---------- this.domElement SETTINGS SPECIFIC TO SEARCHBAR : ----------

    _this.domElement.id = 'widgets-searchbar';
    _this.domElement.style.height = 'auto';
    var form = document.createElement('form');
    form.setAttribute('autocomplete', 'off');
    form.id = 'searchbar-autocompletion-form';

    _this.domElement.appendChild(form);

    var input = document.createElement('input');
    input.setAttribute('type', 'text');
    input.setAttribute('name', 'mySearch');
    input.setAttribute('placeholder', options.placeholder || DEFAULT_OPTIONS.placeholder);
    input.style.height = "".concat(options.height || options.size || DEFAULT_OPTIONS.height, "px");
    input.style.fontSize = "".concat(options.fontSize || DEFAULT_OPTIONS.fontSize, "px");
    form.appendChild(input); // currentFocus variable stores the index of the suggestions that is focused by user, either with mouse or arrow
    // keys.

    var currentFocus; // ----------  BUILD AUTOCOMPLETION SUGGESTIONS LIST WHEN TYPING THE SEARCHBAR INPUT : ----------

    input.addEventListener('input', function () {
      var value = input.value; // Close any already opened list of autocompleted values

      eraseSuggestionList(form);
      currentFocus = -1;

      if (!value) {
        return false;
      }

      geocodingOptions.url.searchParams.set('text', value);

      _Fetcher["default"].json(geocodingOptions.url).then(function (geocodingResult) {
        var result = geocodingOptions.parser(geocodingResult);
        var i = 0;
        result.forEach(function (info, location) {
          // Stop looping through the map if enough location have been proceeded.
          if (i === Math.min(result.size, options.maxSuggestionNumber || DEFAULT_OPTIONS.maxSuggestionNumber)) {
            return;
          }

          var mapIndex = i;
          i++;
          var index = location.toUpperCase().indexOf(value.toUpperCase());

          if (index > -1) {
            var autocompleteItem = document.createElement('div');
            autocompleteItem.style.minHeight = input.style.height;
            autocompleteItem.style.fontSize = "".concat(options.fontSize || DEFAULT_OPTIONS.fontSize, "px"); // Make the matching letters bold.

            var start = location.slice(0, index);
            var bold = location.slice(index, index + value.length);
            var end = location.slice(index + value.length, location.length);
            autocompleteItem.innerHTML = "<p>".concat(start, "<strong>").concat(bold, "</strong>").concat(end, "</p>"); // Store the current location value as an attribute of autocompleteItem div.

            autocompleteItem.setAttribute('location', location);
            form.appendChild(autocompleteItem); // eslint-disable-next-line no-loop-func

            autocompleteItem.addEventListener('mouseover', function () {
              removeAllActives(form.children);
              currentFocus = mapIndex;
              autocompleteItem.classList.add('active');
            });
            autocompleteItem.addEventListener('click', function () {
              (0, _classPrivateFieldGet2["default"])((0, _assertThisInitialized2["default"])(_this), _onSelected).call((0, _assertThisInitialized2["default"])(_this), info);
              input.value = autocompleteItem.getAttribute('location');
              eraseSuggestionList(form);
            });
          }
        });
      });
    }); // ---------- MANAGE KEYBOARD INTERACTIONS ON AUTOCOMPLETION SUGGESTIONS : ----------
    // When searchbar is positioned at the bottom of the screen (therefore is a flex with `column-reverse`
    // direction, we must exchange up and down arrow actions.

    var topOrBottom = (options.position || DEFAULT_OPTIONS.position).includes('top') ? 1 : -1;
    input.addEventListener('keydown', function (event) {
      event.stopPropagation();
      var completionSuggestions = form.getElementsByTagName('div');

      switch (event.code) {
        case 'Escape':
          eraseSuggestionList(form);
          input.value = '';
          view.domElement.focus();
          break;

        case 'ArrowDown':
          event.preventDefault();
          currentFocus = addActive(completionSuggestions, currentFocus + topOrBottom);
          break;

        case 'ArrowUp':
          event.preventDefault();
          currentFocus = addActive(completionSuggestions, currentFocus - topOrBottom);
          break;

        case 'Enter':
          event.preventDefault();

          if (completionSuggestions[Math.max(currentFocus, 0)]) {
            completionSuggestions[Math.max(currentFocus, 0)].click();
            view.domElement.focus();
          }

          break;

        default:
          break;
      }
    }); // ---------- MANAGE FOCUS AND ACTIVE SUGGESTION WHEN USER ENTERS OR LEAVES THE SEARCHBAR : ----------
    // User clicks the searchbar.

    input.addEventListener('focus', function () {
      form.classList.add('focus');
    }); // User clicks out of the searchbar.

    input.addEventListener('blur', function () {
      form.classList.remove('focus');
      removeAllActives(form.children);
    }); // Cursor leaves the searchbar.

    form.addEventListener('mouseleave', function () {
      removeAllActives(form.children);
      currentFocus = -1;
    });
    return _this;
  }

  return (0, _createClass2["default"])(Searchbar);
}(_Widget2["default"]);

var _default = Searchbar;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/gui/Widget.js":
/*!*****************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/gui/Widget.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classCallCheck */ "./node_modules/@babel/runtime/helpers/classCallCheck.js"));

var _createClass2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/createClass */ "./node_modules/@babel/runtime/helpers/createClass.js"));

var _classPrivateFieldSet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldSet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldSet.js"));

var _classPrivateFieldGet2 = _interopRequireDefault(__webpack_require__(/*! @babel/runtime/helpers/classPrivateFieldGet */ "./node_modules/@babel/runtime/helpers/classPrivateFieldGet.js"));

function _classPrivateFieldInitSpec(obj, privateMap, value) { _checkPrivateRedeclaration(obj, privateMap); privateMap.set(obj, value); }

function _checkPrivateRedeclaration(obj, privateCollection) { if (privateCollection.has(obj)) { throw new TypeError("Cannot initialize the same private elements twice on an object"); } }

var _display = /*#__PURE__*/new WeakMap();

/**
 * An interface that stores common methods for all specific widgets.
 *
 * @hideconstructor
 */
var Widget = /*#__PURE__*/function () {
  function Widget(view) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var defaultOptions = arguments.length > 2 ? arguments[2] : undefined;
    (0, _classCallCheck2["default"])(this, Widget);

    _classPrivateFieldInitSpec(this, _display, {
      writable: true,
      value: void 0
    });

    this.parentElement = options.parentElement || view.domElement;
    this.position = options.position || defaultOptions.position;

    if (!['top-left', 'top-right', 'bottom-left', 'bottom-right', 'top', 'bottom', 'left', 'right'].includes(this.position)) {
      console.warn('\'position\' optional parameter for \'Widget\' constructor is not a valid option. ' + "It will be set to '".concat(defaultOptions.position, "'."));
      this.position = defaultOptions.position;
    } // ---------- CREATE A DomElement WITH id, classes AND style RELEVANT TO THE WIDGET PROPERTIES : ----------
    // Create a div containing minimap widget and add it to its specified parent.


    this.domElement = document.createElement('div');
    this.parentElement.appendChild(this.domElement); // Size widget according to options.

    this.domElement.style.width = "".concat(options.width || options.size || defaultOptions.width, "px");
    this.domElement.style.height = "".concat(options.height || options.size || defaultOptions.height, "px"); // Position widget according to options.

    var positionArray = this.position.split('-');
    this.domElement.classList.add("".concat(positionArray[0], "-widget"));

    if (positionArray[1]) {
      this.domElement.classList.add("".concat(positionArray[1], "-widget"));
    } else {
      // If only one position parameter was given, center the domElement on the other axis.
      // TODO : at this stage, offsetWidth and offsetHeight do no include borders. This should be worked around.
      switch (positionArray[0]) {
        case 'top':
        case 'bottom':
          this.domElement.style.left = "calc(50% - ".concat(this.domElement.offsetWidth / 2, "px)");
          break;

        case 'left':
        case 'right':
          this.domElement.style.top = "calc(50% - ".concat(this.domElement.offsetHeight / 2, "px)");
          break;

        default:
          break;
      }
    } // Translate widget div according to optional translate parameter.


    if (options.translate) {
      this.domElement.style.transform = "translate(".concat(options.translate.x || 0, "px, ").concat(options.translate.y || 0, "px)");
    } // Prevent triggering `GlobeControls` and `PlanarControls` mouse or pointer events when clicking the search bar.
    // For example, this prevents triggering an animated travel when double-clicking search bar in a `GlobeView`.


    this.domElement.addEventListener('pointerdown', function (e) {
      e.stopPropagation();
    });
    this.domElement.addEventListener('mousedown', function (e) {
      e.stopPropagation();
    });
  }
  /**
   * Change the widget style `display` property so that the widget becomes visible.
   */


  (0, _createClass2["default"])(Widget, [{
    key: "show",
    value: function show() {
      this.domElement.style.display = (0, _classPrivateFieldGet2["default"])(this, _display);
    }
    /**
     * Change the widget style `display` property so that the widget becomes invisible.
     */

  }, {
    key: "hide",
    value: function hide() {
      (0, _classPrivateFieldSet2["default"])(this, _display, window.getComputedStyle(this.domElement).display);
      this.domElement.style.display = 'none';
    }
  }]);
  return Widget;
}();

var _default = Widget;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/itowns/lib/Utils/placeObjectOnGround.js":
/*!**************************************************************!*\
  !*** ./node_modules/itowns/lib/Utils/placeObjectOnGround.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";


var _interopRequireDefault = __webpack_require__(/*! @babel/runtime/helpers/interopRequireDefault */ "./node_modules/@babel/runtime/helpers/interopRequireDefault.js");

var _typeof = __webpack_require__(/*! @babel/runtime/helpers/typeof */ "./node_modules/@babel/runtime/helpers/typeof.js");

Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports["default"] = void 0;

var THREE = _interopRequireWildcard(__webpack_require__(/*! three */ "./node_modules/three/build/three.cjs"));

var _DEMUtils = _interopRequireDefault(__webpack_require__(/*! ./DEMUtils */ "./node_modules/itowns/lib/Utils/DEMUtils.js"));

var _Coordinates = _interopRequireDefault(__webpack_require__(/*! ../Core/Geographic/Coordinates */ "./node_modules/itowns/lib/Core/Geographic/Coordinates.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

var temp = {
  v: new THREE.Vector3(),
  coord1: new _Coordinates["default"]('EPSG:4978'),
  coord2: new _Coordinates["default"]('EPSG:4978'),
  offset: new THREE.Vector2()
};

function _updateVector3(layer, method, nodes, vecCRS, vec, offset) {
  var matrices = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : {};
  var coords = arguments.length > 7 ? arguments[7] : undefined;
  var cache = arguments.length > 8 ? arguments[8] : undefined;
  var coord = coords || new _Coordinates["default"](vecCRS);

  if (matrices.worldFromLocal) {
    coord.setFromVector3(temp.v.copy(vec).applyMatrix4(matrices.worldFromLocal));
  } else {
    coord.setFromVector3(vec);
  }

  var result = _DEMUtils["default"].getTerrainObjectAt(layer, coord, method, nodes, cache);

  if (result) {
    result.coord.z += offset;
    result.coord.as(vecCRS, temp.coord2).toVector3(vec);

    if (matrices.localFromWorld) {
      vec.applyMatrix4(matrices.localFromWorld);
    }

    return {
      id: result.texture.id,
      version: result.texture.version,
      tile: result.tile
    };
  }
}
/**
 * @deprecated
 * Helper method that will position an object directly on the ground.
 *
 * @param {TiledGeometryLayer} layer - The tile layer owning the elevation
 * textures we're going to query. This is typically a `GlobeLayer` or
 * `PlanarLayer` (accessible through `view.tileLayer`).
 * @param {string} crs - The CRS used by the object coordinates. You
 * probably want to use `view.referenceCRS` here.
 * @param {Object3D} obj - the object we want to modify.
 * @param {Object} options
 * @param {number} [options.method=FAST_READ_Z] - There are two available methods:
 * `FAST_READ_Z` (default) or `PRECISE_READ_Z`. The first one is faster,
 * while the second one is slower but gives better precision.
 * @param {boolean} options.modifyGeometry - if unset/false, this function
 * will modify object.position. If true, it will modify
 * `obj.geometry.vertices` or `obj.geometry.attributes.position`.
 * @param {TileMesh[]} [tileHint] - Optional array of tiles to speed up the
 * process. You can give candidates tiles likely to contain `coord`.
 * Otherwise the lookup process starts from the root of `layer`.
 *
 * @return {boolean} true if successful, false if we couldn't lookup the elevation at the given coords
 */

/* istanbul ignore next */


function placeObjectOnGround(layer, crs, obj) {
  var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
  var tileHint = arguments.length > 4 ? arguments[4] : undefined;
  console.warn('placeObjectOnGround has been deprecated because it needs review and test');
  var tiles;

  if (tileHint) {
    tiles = tileHint.concat(layer.level0Nodes);
  } else {
    tiles = layer.level0Nodes;
  }

  if (!options.modifyGeometry) {
    if (options.cache) {
      options.cache.length = 1;
    }

    var matrices = {
      worldFromLocal: obj.parent ? obj.parent.matrixWorld : undefined,
      localFromWorld: obj.parent ? new THREE.Matrix4().copy(obj.parent.matrixWorld).invert() : undefined
    };

    var result = _updateVector3(layer, options.method || _DEMUtils["default"].FAST_READ_Z, tiles, crs, obj.position, options.offset || 0, matrices, undefined, options.cache ? options.cache[0] : undefined);

    if (result) {
      if (options.cache) {
        options.cache[0] = result;
      }

      obj.updateMatrix();
      obj.updateMatrixWorld();
      return true;
    }
  } else {
    var _matrices = {
      worldFromLocal: obj.matrixWorld,
      localFromWorld: new THREE.Matrix4().copy(obj.matrixWorld).invert()
    };
    var geometry = obj.geometry;

    if (geometry.vertices) {
      if (options.cache) {
        options.cache.length = geometry.vertices.length;
      }

      var success = true;
      var coord = new _Coordinates["default"](crs);

      for (var i = 0; i < geometry.vertices.length; i++) {
        var cached = options.cache ? options.cache[i] : undefined;

        var _result = _updateVector3(layer, options.method || _DEMUtils["default"].FAST_READ_Z, tiles, crs, geometry.vertices[i], options.offset || 0, _matrices, coord, cached);

        if (options.cache) {
          options.cache[i] = _result;
        }

        if (!_result) {
          success = false;
        }
      }

      geometry.verticesNeedUpdate = true;
      return success;
    } else if (geometry.isBufferGeometry) {
      if (options.cache) {
        options.cache.length = geometry.attributes.position.count;
      }

      var _success = true;
      var tmp = new THREE.Vector3();

      var _coord = new _Coordinates["default"](crs);

      for (var _i = 0; _i < geometry.attributes.position.count; _i++) {
        var _cached = options.cache ? options.cache[_i] : undefined;

        tmp.fromBufferAttribute(geometry.attributes.position, _i);
        var prev = tmp.z;

        var _result2 = _updateVector3(layer, options.method || _DEMUtils["default"].FAST_READ_Z, tiles, crs, tmp, options.offset || 0, _matrices, _coord, _cached);

        if (options.cache) {
          options.cache[_i] = _result2;
        }

        if (!_result2) {
          _success = false;
        }

        if (prev != tmp.z) {
          geometry.attributes.position.needsUpdate = true;
        }

        geometry.attributes.position.setXYZ(_i, tmp.x, tmp.y, tmp.z);
      }

      return _success;
    }
  }
}

var _default = placeObjectOnGround;
exports["default"] = _default;

/***/ }),

/***/ "./node_modules/js-priority-queue/priority-queue.js":
/*!**********************************************************!*\
  !*** ./node_modules/js-priority-queue/priority-queue.js ***!
  \**********************************************************/
/***/ ((module) => {

(function(f){if(true){module.exports=f()}else { var g; }})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=undefined;if(!u&&a)return require(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=undefined;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
var AbstractPriorityQueue, ArrayStrategy, BHeapStrategy, BinaryHeapStrategy, PriorityQueue,
  extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
  hasProp = {}.hasOwnProperty;

AbstractPriorityQueue = _dereq_('./PriorityQueue/AbstractPriorityQueue');

ArrayStrategy = _dereq_('./PriorityQueue/ArrayStrategy');

BinaryHeapStrategy = _dereq_('./PriorityQueue/BinaryHeapStrategy');

BHeapStrategy = _dereq_('./PriorityQueue/BHeapStrategy');

PriorityQueue = (function(superClass) {
  extend(PriorityQueue, superClass);

  function PriorityQueue(options) {
    options || (options = {});
    options.strategy || (options.strategy = BinaryHeapStrategy);
    options.comparator || (options.comparator = function(a, b) {
      return (a || 0) - (b || 0);
    });
    PriorityQueue.__super__.constructor.call(this, options);
  }

  return PriorityQueue;

})(AbstractPriorityQueue);

PriorityQueue.ArrayStrategy = ArrayStrategy;

PriorityQueue.BinaryHeapStrategy = BinaryHeapStrategy;

PriorityQueue.BHeapStrategy = BHeapStrategy;

module.exports = PriorityQueue;


},{"./PriorityQueue/AbstractPriorityQueue":2,"./PriorityQueue/ArrayStrategy":3,"./PriorityQueue/BHeapStrategy":4,"./PriorityQueue/BinaryHeapStrategy":5}],2:[function(_dereq_,module,exports){
var AbstractPriorityQueue;

module.exports = AbstractPriorityQueue = (function() {
  function AbstractPriorityQueue(options) {
    var ref;
    if ((options != null ? options.strategy : void 0) == null) {
      throw 'Must pass options.strategy, a strategy';
    }
    if ((options != null ? options.comparator : void 0) == null) {
      throw 'Must pass options.comparator, a comparator';
    }
    this.priv = new options.strategy(options);
    this.length = (options != null ? (ref = options.initialValues) != null ? ref.length : void 0 : void 0) || 0;
  }

  AbstractPriorityQueue.prototype.queue = function(value) {
    this.length++;
    this.priv.queue(value);
    return void 0;
  };

  AbstractPriorityQueue.prototype.dequeue = function(value) {
    if (!this.length) {
      throw 'Empty queue';
    }
    this.length--;
    return this.priv.dequeue();
  };

  AbstractPriorityQueue.prototype.peek = function(value) {
    if (!this.length) {
      throw 'Empty queue';
    }
    return this.priv.peek();
  };

  AbstractPriorityQueue.prototype.clear = function() {
    this.length = 0;
    return this.priv.clear();
  };

  return AbstractPriorityQueue;

})();


},{}],3:[function(_dereq_,module,exports){
var ArrayStrategy, binarySearchForIndexReversed;

binarySearchForIndexReversed = function(array, value, comparator) {
  var high, low, mid;
  low = 0;
  high = array.length;
  while (low < high) {
    mid = (low + high) >>> 1;
    if (comparator(array[mid], value) >= 0) {
      low = mid + 1;
    } else {
      high = mid;
    }
  }
  return low;
};

module.exports = ArrayStrategy = (function() {
  function ArrayStrategy(options) {
    var ref;
    this.options = options;
    this.comparator = this.options.comparator;
    this.data = ((ref = this.options.initialValues) != null ? ref.slice(0) : void 0) || [];
    this.data.sort(this.comparator).reverse();
  }

  ArrayStrategy.prototype.queue = function(value) {
    var pos;
    pos = binarySearchForIndexReversed(this.data, value, this.comparator);
    this.data.splice(pos, 0, value);
    return void 0;
  };

  ArrayStrategy.prototype.dequeue = function() {
    return this.data.pop();
  };

  ArrayStrategy.prototype.peek = function() {
    return this.data[this.data.length - 1];
  };

  ArrayStrategy.prototype.clear = function() {
    this.data.length = 0;
    return void 0;
  };

  return ArrayStrategy;

})();


},{}],4:[function(_dereq_,module,exports){
var BHeapStrategy;

module.exports = BHeapStrategy = (function() {
  function BHeapStrategy(options) {
    var arr, i, j, k, len, ref, ref1, shift, value;
    this.comparator = (options != null ? options.comparator : void 0) || function(a, b) {
      return a - b;
    };
    this.pageSize = (options != null ? options.pageSize : void 0) || 512;
    this.length = 0;
    shift = 0;
    while ((1 << shift) < this.pageSize) {
      shift += 1;
    }
    if (1 << shift !== this.pageSize) {
      throw 'pageSize must be a power of two';
    }
    this._shift = shift;
    this._emptyMemoryPageTemplate = arr = [];
    for (i = j = 0, ref = this.pageSize; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
      arr.push(null);
    }
    this._memory = [];
    this._mask = this.pageSize - 1;
    if (options.initialValues) {
      ref1 = options.initialValues;
      for (k = 0, len = ref1.length; k < len; k++) {
        value = ref1[k];
        this.queue(value);
      }
    }
  }

  BHeapStrategy.prototype.queue = function(value) {
    this.length += 1;
    this._write(this.length, value);
    this._bubbleUp(this.length, value);
    return void 0;
  };

  BHeapStrategy.prototype.dequeue = function() {
    var ret, val;
    ret = this._read(1);
    val = this._read(this.length);
    this.length -= 1;
    if (this.length > 0) {
      this._write(1, val);
      this._bubbleDown(1, val);
    }
    return ret;
  };

  BHeapStrategy.prototype.peek = function() {
    return this._read(1);
  };

  BHeapStrategy.prototype.clear = function() {
    this.length = 0;
    this._memory.length = 0;
    return void 0;
  };

  BHeapStrategy.prototype._write = function(index, value) {
    var page;
    page = index >> this._shift;
    while (page >= this._memory.length) {
      this._memory.push(this._emptyMemoryPageTemplate.slice(0));
    }
    return this._memory[page][index & this._mask] = value;
  };

  BHeapStrategy.prototype._read = function(index) {
    return this._memory[index >> this._shift][index & this._mask];
  };

  BHeapStrategy.prototype._bubbleUp = function(index, value) {
    var compare, indexInPage, parentIndex, parentValue;
    compare = this.comparator;
    while (index > 1) {
      indexInPage = index & this._mask;
      if (index < this.pageSize || indexInPage > 3) {
        parentIndex = (index & ~this._mask) | (indexInPage >> 1);
      } else if (indexInPage < 2) {
        parentIndex = (index - this.pageSize) >> this._shift;
        parentIndex += parentIndex & ~(this._mask >> 1);
        parentIndex |= this.pageSize >> 1;
      } else {
        parentIndex = index - 2;
      }
      parentValue = this._read(parentIndex);
      if (compare(parentValue, value) < 0) {
        break;
      }
      this._write(parentIndex, value);
      this._write(index, parentValue);
      index = parentIndex;
    }
    return void 0;
  };

  BHeapStrategy.prototype._bubbleDown = function(index, value) {
    var childIndex1, childIndex2, childValue1, childValue2, compare;
    compare = this.comparator;
    while (index < this.length) {
      if (index > this._mask && !(index & (this._mask - 1))) {
        childIndex1 = childIndex2 = index + 2;
      } else if (index & (this.pageSize >> 1)) {
        childIndex1 = (index & ~this._mask) >> 1;
        childIndex1 |= index & (this._mask >> 1);
        childIndex1 = (childIndex1 + 1) << this._shift;
        childIndex2 = childIndex1 + 1;
      } else {
        childIndex1 = index + (index & this._mask);
        childIndex2 = childIndex1 + 1;
      }
      if (childIndex1 !== childIndex2 && childIndex2 <= this.length) {
        childValue1 = this._read(childIndex1);
        childValue2 = this._read(childIndex2);
        if (compare(childValue1, value) < 0 && compare(childValue1, childValue2) <= 0) {
          this._write(childIndex1, value);
          this._write(index, childValue1);
          index = childIndex1;
        } else if (compare(childValue2, value) < 0) {
          this._write(childIndex2, value);
          this._write(index, childValue2);
          index = childIndex2;
        } else {
          break;
        }
      } else if (childIndex1 <= this.length) {
        childValue1 = this._read(childIndex1);
        if (compare(childValue1, value) < 0) {
          this._write(childIndex1, value);
          this._write(index, childValue1);
          index = childIndex1;
        } else {
          break;
        }
      } else {
        break;
      }
    }
    return void 0;
  };

  return BHeapStrategy;

})();


},{}],5:[function(_dereq_,module,exports){
var BinaryHeapStrategy;

module.exports = BinaryHeapStrategy = (function() {
  function BinaryHeapStrategy(options) {
    var ref;
    this.comparator = (options != null ? options.comparator : void 0) || function(a, b) {
      return a - b;
    };
    this.length = 0;
    this.data = ((ref = options.initialValues) != null ? ref.slice(0) : void 0) || [];
    this._heapify();
  }

  BinaryHeapStrategy.prototype._heapify = function() {
    var i, j, ref;
    if (this.data.length > 0) {
      for (i = j = 1, ref = this.data.length; 1 <= ref ? j < ref : j > ref; i = 1 <= ref ? ++j : --j) {
        this._bubbleUp(i);
      }
    }
    return void 0;
  };

  BinaryHeapStrategy.prototype.queue = function(value) {
    this.data.push(value);
    this._bubbleUp(this.data.length - 1);
    return void 0;
  };

  BinaryHeapStrategy.prototype.dequeue = function() {
    var last, ret;
    ret = this.data[0];
    last = this.data.pop();
    if (this.data.length > 0) {
      this.data[0] = last;
      this._bubbleDown(0);
    }
    return ret;
  };

  BinaryHeapStrategy.prototype.peek = function() {
    return this.data[0];
  };

  BinaryHeapStrategy.prototype.clear = function() {
    this.length = 0;
    this.data.length = 0;
    return void 0;
  };

  BinaryHeapStrategy.prototype._bubbleUp = function(pos) {
    var parent, x;
    while (pos > 0) {
      parent = (pos - 1) >>> 1;
      if (this.comparator(this.data[pos], this.data[parent]) < 0) {
        x = this.data[parent];
        this.data[parent] = this.data[pos];
        this.data[pos] = x;
        pos = parent;
      } else {
        break;
      }
    }
    return void 0;
  };

  BinaryHeapStrategy.prototype._bubbleDown = function(pos) {
    var last, left, minIndex, right, x;
    last = this.data.length - 1;
    while (true) {
      left = (pos << 1) + 1;
      right = left + 1;
      minIndex = pos;
      if (left <= last && this.comparator(this.data[left], this.data[minIndex]) < 0) {
        minIndex = left;
      }
      if (right <= last && this.comparator(this.data[right], this.data[minIndex]) < 0) {
        minIndex = right;
      }
      if (minIndex !== pos) {
        x = this.data[minIndex];
        this.data[minIndex] = this.data[pos];
        this.data[pos] = x;
        pos = minIndex;
      } else {
        break;
      }
    }
    return void 0;
  };

  return BinaryHeapStrategy;

})();


},{}]},{},[1])(1)
});

/***/ }),

/***/ "./node_modules/jszip/dist/jszip.min.js":
/*!**********************************************!*\
  !*** ./node_modules/jszip/dist/jszip.min.js ***!
  \**********************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

/*!

JSZip v3.7.1 - A JavaScript class for generating and reading zip files
<http://stuartk.com/jszip>

(c) 2009-2016 Stuart Knightley <stuart [at] stuartk.com>
Dual licenced under the MIT license or GPLv3. See https://raw.github.com/Stuk/jszip/master/LICENSE.markdown.

JSZip uses the library pako released under the MIT license :
https://github.com/nodeca/pako/blob/master/LICENSE
*/

!function(t){if(true)module.exports=t();else {}}(function(){return function s(a,o,h){function u(r,t){if(!o[r]){if(!a[r]){var e=undefined;if(!t&&e)return require(r,!0);if(l)return l(r,!0);var i=new Error("Cannot find module '"+r+"'");throw i.code="MODULE_NOT_FOUND",i}var n=o[r]={exports:{}};a[r][0].call(n.exports,function(t){var e=a[r][1][t];return u(e||t)},n,n.exports,s,a,o,h)}return o[r].exports}for(var l=undefined,t=0;t<h.length;t++)u(h[t]);return u}({1:[function(t,e,r){"use strict";var c=t("./utils"),d=t("./support"),p="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";r.encode=function(t){for(var e,r,i,n,s,a,o,h=[],u=0,l=t.length,f=l,d="string"!==c.getTypeOf(t);u<t.length;)f=l-u,i=d?(e=t[u++],r=u<l?t[u++]:0,u<l?t[u++]:0):(e=t.charCodeAt(u++),r=u<l?t.charCodeAt(u++):0,u<l?t.charCodeAt(u++):0),n=e>>2,s=(3&e)<<4|r>>4,a=1<f?(15&r)<<2|i>>6:64,o=2<f?63&i:64,h.push(p.charAt(n)+p.charAt(s)+p.charAt(a)+p.charAt(o));return h.join("")},r.decode=function(t){var e,r,i,n,s,a,o=0,h=0,u="data:";if(t.substr(0,u.length)===u)throw new Error("Invalid base64 input, it looks like a data url.");var l,f=3*(t=t.replace(/[^A-Za-z0-9\+\/\=]/g,"")).length/4;if(t.charAt(t.length-1)===p.charAt(64)&&f--,t.charAt(t.length-2)===p.charAt(64)&&f--,f%1!=0)throw new Error("Invalid base64 input, bad content length.");for(l=d.uint8array?new Uint8Array(0|f):new Array(0|f);o<t.length;)e=p.indexOf(t.charAt(o++))<<2|(n=p.indexOf(t.charAt(o++)))>>4,r=(15&n)<<4|(s=p.indexOf(t.charAt(o++)))>>2,i=(3&s)<<6|(a=p.indexOf(t.charAt(o++))),l[h++]=e,64!==s&&(l[h++]=r),64!==a&&(l[h++]=i);return l}},{"./support":30,"./utils":32}],2:[function(t,e,r){"use strict";var i=t("./external"),n=t("./stream/DataWorker"),s=t("./stream/Crc32Probe"),a=t("./stream/DataLengthProbe");function o(t,e,r,i,n){this.compressedSize=t,this.uncompressedSize=e,this.crc32=r,this.compression=i,this.compressedContent=n}o.prototype={getContentWorker:function(){var t=new n(i.Promise.resolve(this.compressedContent)).pipe(this.compression.uncompressWorker()).pipe(new a("data_length")),e=this;return t.on("end",function(){if(this.streamInfo.data_length!==e.uncompressedSize)throw new Error("Bug : uncompressed data size mismatch")}),t},getCompressedWorker:function(){return new n(i.Promise.resolve(this.compressedContent)).withStreamInfo("compressedSize",this.compressedSize).withStreamInfo("uncompressedSize",this.uncompressedSize).withStreamInfo("crc32",this.crc32).withStreamInfo("compression",this.compression)}},o.createWorkerFrom=function(t,e,r){return t.pipe(new s).pipe(new a("uncompressedSize")).pipe(e.compressWorker(r)).pipe(new a("compressedSize")).withStreamInfo("compression",e)},e.exports=o},{"./external":6,"./stream/Crc32Probe":25,"./stream/DataLengthProbe":26,"./stream/DataWorker":27}],3:[function(t,e,r){"use strict";var i=t("./stream/GenericWorker");r.STORE={magic:"\0\0",compressWorker:function(t){return new i("STORE compression")},uncompressWorker:function(){return new i("STORE decompression")}},r.DEFLATE=t("./flate")},{"./flate":7,"./stream/GenericWorker":28}],4:[function(t,e,r){"use strict";var i=t("./utils");var o=function(){for(var t,e=[],r=0;r<256;r++){t=r;for(var i=0;i<8;i++)t=1&t?3988292384^t>>>1:t>>>1;e[r]=t}return e}();e.exports=function(t,e){return void 0!==t&&t.length?"string"!==i.getTypeOf(t)?function(t,e,r,i){var n=o,s=i+r;t^=-1;for(var a=i;a<s;a++)t=t>>>8^n[255&(t^e[a])];return-1^t}(0|e,t,t.length,0):function(t,e,r,i){var n=o,s=i+r;t^=-1;for(var a=i;a<s;a++)t=t>>>8^n[255&(t^e.charCodeAt(a))];return-1^t}(0|e,t,t.length,0):0}},{"./utils":32}],5:[function(t,e,r){"use strict";r.base64=!1,r.binary=!1,r.dir=!1,r.createFolders=!0,r.date=null,r.compression=null,r.compressionOptions=null,r.comment=null,r.unixPermissions=null,r.dosPermissions=null},{}],6:[function(t,e,r){"use strict";var i=null;i="undefined"!=typeof Promise?Promise:t("lie"),e.exports={Promise:i}},{lie:37}],7:[function(t,e,r){"use strict";var i="undefined"!=typeof Uint8Array&&"undefined"!=typeof Uint16Array&&"undefined"!=typeof Uint32Array,n=t("pako"),s=t("./utils"),a=t("./stream/GenericWorker"),o=i?"uint8array":"array";function h(t,e){a.call(this,"FlateWorker/"+t),this._pako=null,this._pakoAction=t,this._pakoOptions=e,this.meta={}}r.magic="\b\0",s.inherits(h,a),h.prototype.processChunk=function(t){this.meta=t.meta,null===this._pako&&this._createPako(),this._pako.push(s.transformTo(o,t.data),!1)},h.prototype.flush=function(){a.prototype.flush.call(this),null===this._pako&&this._createPako(),this._pako.push([],!0)},h.prototype.cleanUp=function(){a.prototype.cleanUp.call(this),this._pako=null},h.prototype._createPako=function(){this._pako=new n[this._pakoAction]({raw:!0,level:this._pakoOptions.level||-1});var e=this;this._pako.onData=function(t){e.push({data:t,meta:e.meta})}},r.compressWorker=function(t){return new h("Deflate",t)},r.uncompressWorker=function(){return new h("Inflate",{})}},{"./stream/GenericWorker":28,"./utils":32,pako:38}],8:[function(t,e,r){"use strict";function A(t,e){var r,i="";for(r=0;r<e;r++)i+=String.fromCharCode(255&t),t>>>=8;return i}function i(t,e,r,i,n,s){var a,o,h=t.file,u=t.compression,l=s!==O.utf8encode,f=I.transformTo("string",s(h.name)),d=I.transformTo("string",O.utf8encode(h.name)),c=h.comment,p=I.transformTo("string",s(c)),m=I.transformTo("string",O.utf8encode(c)),_=d.length!==h.name.length,g=m.length!==c.length,b="",v="",y="",w=h.dir,k=h.date,x={crc32:0,compressedSize:0,uncompressedSize:0};e&&!r||(x.crc32=t.crc32,x.compressedSize=t.compressedSize,x.uncompressedSize=t.uncompressedSize);var S=0;e&&(S|=8),l||!_&&!g||(S|=2048);var z=0,C=0;w&&(z|=16),"UNIX"===n?(C=798,z|=function(t,e){var r=t;return t||(r=e?16893:33204),(65535&r)<<16}(h.unixPermissions,w)):(C=20,z|=function(t){return 63&(t||0)}(h.dosPermissions)),a=k.getUTCHours(),a<<=6,a|=k.getUTCMinutes(),a<<=5,a|=k.getUTCSeconds()/2,o=k.getUTCFullYear()-1980,o<<=4,o|=k.getUTCMonth()+1,o<<=5,o|=k.getUTCDate(),_&&(v=A(1,1)+A(B(f),4)+d,b+="up"+A(v.length,2)+v),g&&(y=A(1,1)+A(B(p),4)+m,b+="uc"+A(y.length,2)+y);var E="";return E+="\n\0",E+=A(S,2),E+=u.magic,E+=A(a,2),E+=A(o,2),E+=A(x.crc32,4),E+=A(x.compressedSize,4),E+=A(x.uncompressedSize,4),E+=A(f.length,2),E+=A(b.length,2),{fileRecord:R.LOCAL_FILE_HEADER+E+f+b,dirRecord:R.CENTRAL_FILE_HEADER+A(C,2)+E+A(p.length,2)+"\0\0\0\0"+A(z,4)+A(i,4)+f+b+p}}var I=t("../utils"),n=t("../stream/GenericWorker"),O=t("../utf8"),B=t("../crc32"),R=t("../signature");function s(t,e,r,i){n.call(this,"ZipFileWorker"),this.bytesWritten=0,this.zipComment=e,this.zipPlatform=r,this.encodeFileName=i,this.streamFiles=t,this.accumulate=!1,this.contentBuffer=[],this.dirRecords=[],this.currentSourceOffset=0,this.entriesCount=0,this.currentFile=null,this._sources=[]}I.inherits(s,n),s.prototype.push=function(t){var e=t.meta.percent||0,r=this.entriesCount,i=this._sources.length;this.accumulate?this.contentBuffer.push(t):(this.bytesWritten+=t.data.length,n.prototype.push.call(this,{data:t.data,meta:{currentFile:this.currentFile,percent:r?(e+100*(r-i-1))/r:100}}))},s.prototype.openedSource=function(t){this.currentSourceOffset=this.bytesWritten,this.currentFile=t.file.name;var e=this.streamFiles&&!t.file.dir;if(e){var r=i(t,e,!1,this.currentSourceOffset,this.zipPlatform,this.encodeFileName);this.push({data:r.fileRecord,meta:{percent:0}})}else this.accumulate=!0},s.prototype.closedSource=function(t){this.accumulate=!1;var e=this.streamFiles&&!t.file.dir,r=i(t,e,!0,this.currentSourceOffset,this.zipPlatform,this.encodeFileName);if(this.dirRecords.push(r.dirRecord),e)this.push({data:function(t){return R.DATA_DESCRIPTOR+A(t.crc32,4)+A(t.compressedSize,4)+A(t.uncompressedSize,4)}(t),meta:{percent:100}});else for(this.push({data:r.fileRecord,meta:{percent:0}});this.contentBuffer.length;)this.push(this.contentBuffer.shift());this.currentFile=null},s.prototype.flush=function(){for(var t=this.bytesWritten,e=0;e<this.dirRecords.length;e++)this.push({data:this.dirRecords[e],meta:{percent:100}});var r=this.bytesWritten-t,i=function(t,e,r,i,n){var s=I.transformTo("string",n(i));return R.CENTRAL_DIRECTORY_END+"\0\0\0\0"+A(t,2)+A(t,2)+A(e,4)+A(r,4)+A(s.length,2)+s}(this.dirRecords.length,r,t,this.zipComment,this.encodeFileName);this.push({data:i,meta:{percent:100}})},s.prototype.prepareNextSource=function(){this.previous=this._sources.shift(),this.openedSource(this.previous.streamInfo),this.isPaused?this.previous.pause():this.previous.resume()},s.prototype.registerPrevious=function(t){this._sources.push(t);var e=this;return t.on("data",function(t){e.processChunk(t)}),t.on("end",function(){e.closedSource(e.previous.streamInfo),e._sources.length?e.prepareNextSource():e.end()}),t.on("error",function(t){e.error(t)}),this},s.prototype.resume=function(){return!!n.prototype.resume.call(this)&&(!this.previous&&this._sources.length?(this.prepareNextSource(),!0):this.previous||this._sources.length||this.generatedError?void 0:(this.end(),!0))},s.prototype.error=function(t){var e=this._sources;if(!n.prototype.error.call(this,t))return!1;for(var r=0;r<e.length;r++)try{e[r].error(t)}catch(t){}return!0},s.prototype.lock=function(){n.prototype.lock.call(this);for(var t=this._sources,e=0;e<t.length;e++)t[e].lock()},e.exports=s},{"../crc32":4,"../signature":23,"../stream/GenericWorker":28,"../utf8":31,"../utils":32}],9:[function(t,e,r){"use strict";var u=t("../compressions"),i=t("./ZipFileWorker");r.generateWorker=function(t,a,e){var o=new i(a.streamFiles,e,a.platform,a.encodeFileName),h=0;try{t.forEach(function(t,e){h++;var r=function(t,e){var r=t||e,i=u[r];if(!i)throw new Error(r+" is not a valid compression method !");return i}(e.options.compression,a.compression),i=e.options.compressionOptions||a.compressionOptions||{},n=e.dir,s=e.date;e._compressWorker(r,i).withStreamInfo("file",{name:t,dir:n,date:s,comment:e.comment||"",unixPermissions:e.unixPermissions,dosPermissions:e.dosPermissions}).pipe(o)}),o.entriesCount=h}catch(t){o.error(t)}return o}},{"../compressions":3,"./ZipFileWorker":8}],10:[function(t,e,r){"use strict";function i(){if(!(this instanceof i))return new i;if(arguments.length)throw new Error("The constructor with parameters has been removed in JSZip 3.0, please check the upgrade guide.");this.files=Object.create(null),this.comment=null,this.root="",this.clone=function(){var t=new i;for(var e in this)"function"!=typeof this[e]&&(t[e]=this[e]);return t}}(i.prototype=t("./object")).loadAsync=t("./load"),i.support=t("./support"),i.defaults=t("./defaults"),i.version="3.7.1",i.loadAsync=function(t,e){return(new i).loadAsync(t,e)},i.external=t("./external"),e.exports=i},{"./defaults":5,"./external":6,"./load":11,"./object":15,"./support":30}],11:[function(t,e,r){"use strict";var i=t("./utils"),n=t("./external"),o=t("./utf8"),h=t("./zipEntries"),s=t("./stream/Crc32Probe"),u=t("./nodejsUtils");function l(i){return new n.Promise(function(t,e){var r=i.decompressed.getContentWorker().pipe(new s);r.on("error",function(t){e(t)}).on("end",function(){r.streamInfo.crc32!==i.decompressed.crc32?e(new Error("Corrupted zip : CRC32 mismatch")):t()}).resume()})}e.exports=function(t,s){var a=this;return s=i.extend(s||{},{base64:!1,checkCRC32:!1,optimizedBinaryString:!1,createFolders:!1,decodeFileName:o.utf8decode}),u.isNode&&u.isStream(t)?n.Promise.reject(new Error("JSZip can't accept a stream when loading a zip file.")):i.prepareContent("the loaded zip file",t,!0,s.optimizedBinaryString,s.base64).then(function(t){var e=new h(s);return e.load(t),e}).then(function(t){var e=[n.Promise.resolve(t)],r=t.files;if(s.checkCRC32)for(var i=0;i<r.length;i++)e.push(l(r[i]));return n.Promise.all(e)}).then(function(t){for(var e=t.shift(),r=e.files,i=0;i<r.length;i++){var n=r[i];a.file(n.fileNameStr,n.decompressed,{binary:!0,optimizedBinaryString:!0,date:n.date,dir:n.dir,comment:n.fileCommentStr.length?n.fileCommentStr:null,unixPermissions:n.unixPermissions,dosPermissions:n.dosPermissions,createFolders:s.createFolders})}return e.zipComment.length&&(a.comment=e.zipComment),a})}},{"./external":6,"./nodejsUtils":14,"./stream/Crc32Probe":25,"./utf8":31,"./utils":32,"./zipEntries":33}],12:[function(t,e,r){"use strict";var i=t("../utils"),n=t("../stream/GenericWorker");function s(t,e){n.call(this,"Nodejs stream input adapter for "+t),this._upstreamEnded=!1,this._bindStream(e)}i.inherits(s,n),s.prototype._bindStream=function(t){var e=this;(this._stream=t).pause(),t.on("data",function(t){e.push({data:t,meta:{percent:0}})}).on("error",function(t){e.isPaused?this.generatedError=t:e.error(t)}).on("end",function(){e.isPaused?e._upstreamEnded=!0:e.end()})},s.prototype.pause=function(){return!!n.prototype.pause.call(this)&&(this._stream.pause(),!0)},s.prototype.resume=function(){return!!n.prototype.resume.call(this)&&(this._upstreamEnded?this.end():this._stream.resume(),!0)},e.exports=s},{"../stream/GenericWorker":28,"../utils":32}],13:[function(t,e,r){"use strict";var n=t("readable-stream").Readable;function i(t,e,r){n.call(this,e),this._helper=t;var i=this;t.on("data",function(t,e){i.push(t)||i._helper.pause(),r&&r(e)}).on("error",function(t){i.emit("error",t)}).on("end",function(){i.push(null)})}t("../utils").inherits(i,n),i.prototype._read=function(){this._helper.resume()},e.exports=i},{"../utils":32,"readable-stream":16}],14:[function(t,e,r){"use strict";e.exports={isNode:"undefined"!=typeof Buffer,newBufferFrom:function(t,e){if(Buffer.from&&Buffer.from!==Uint8Array.from)return Buffer.from(t,e);if("number"==typeof t)throw new Error('The "data" argument must not be a number');return new Buffer(t,e)},allocBuffer:function(t){if(Buffer.alloc)return Buffer.alloc(t);var e=new Buffer(t);return e.fill(0),e},isBuffer:function(t){return Buffer.isBuffer(t)},isStream:function(t){return t&&"function"==typeof t.on&&"function"==typeof t.pause&&"function"==typeof t.resume}}},{}],15:[function(t,e,r){"use strict";function s(t,e,r){var i,n=u.getTypeOf(e),s=u.extend(r||{},f);s.date=s.date||new Date,null!==s.compression&&(s.compression=s.compression.toUpperCase()),"string"==typeof s.unixPermissions&&(s.unixPermissions=parseInt(s.unixPermissions,8)),s.unixPermissions&&16384&s.unixPermissions&&(s.dir=!0),s.dosPermissions&&16&s.dosPermissions&&(s.dir=!0),s.dir&&(t=g(t)),s.createFolders&&(i=_(t))&&b.call(this,i,!0);var a="string"===n&&!1===s.binary&&!1===s.base64;r&&void 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t=this.extraFields[25461];if(t){var e=i(t.value);return 1!==e.readInt(1)?null:a(this.fileComment)!==e.readInt(4)?null:o.utf8decode(e.readData(t.length-5))}return null}},e.exports=l},{"./compressedObject":2,"./compressions":3,"./crc32":4,"./reader/readerFor":22,"./support":30,"./utf8":31,"./utils":32}],35:[function(t,e,r){"use strict";function i(t,e,r){this.name=t,this.dir=r.dir,this.date=r.date,this.comment=r.comment,this.unixPermissions=r.unixPermissions,this.dosPermissions=r.dosPermissions,this._data=e,this._dataBinary=r.binary,this.options={compression:r.compression,compressionOptions:r.compressionOptions}}var s=t("./stream/StreamHelper"),n=t("./stream/DataWorker"),a=t("./utf8"),o=t("./compressedObject"),h=t("./stream/GenericWorker");i.prototype={internalStream:function(t){var e=null,r="string";try{if(!t)throw new Error("No output type specified.");var i="string"===(r=t.toLowerCase())||"text"===r;"binarystring"!==r&&"text"!==r||(r="string"),e=this._decompressWorker();var 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d.Buf16(2*s+1),D(this.depth),this.l_buf=0,this.lit_bufsize=0,this.last_lit=0,this.d_buf=0,this.opt_len=0,this.static_len=0,this.matches=0,this.insert=0,this.bi_buf=0,this.bi_valid=0}function G(t){var e;return t&&t.state?(t.total_in=t.total_out=0,t.data_type=n,(e=t.state).pending=0,e.pending_out=0,e.wrap<0&&(e.wrap=-e.wrap),e.status=e.wrap?C:E,t.adler=2===e.wrap?0:1,e.last_flush=l,u._tr_init(e),m):R(t,_)}function K(t){var e=G(t);return e===m&&function(t){t.window_size=2*t.w_size,D(t.head),t.max_lazy_match=h[t.level].max_lazy,t.good_match=h[t.level].good_length,t.nice_match=h[t.level].nice_length,t.max_chain_length=h[t.level].max_chain,t.strstart=0,t.block_start=0,t.lookahead=0,t.insert=0,t.match_length=t.prev_length=x-1,t.match_available=0,t.ins_h=0}(t.state),e}function Y(t,e,r,i,n,s){if(!t)return _;var a=1;if(e===g&&(e=6),i<0?(a=0,i=-i):15<i&&(a=2,i-=16),n<1||y<n||r!==v||i<8||15<i||e<0||9<e||s<0||b<s)return R(t,_);8===i&&(i=9);var o=new H;return(t.state=o).strm=t,o.wrap=a,o.gzhead=null,o.w_bits=i,o.w_size=1<<o.w_bits,o.w_mask=o.w_size-1,o.hash_bits=n+7,o.hash_size=1<<o.hash_bits,o.hash_mask=o.hash_size-1,o.hash_shift=~~((o.hash_bits+x-1)/x),o.window=new d.Buf8(2*o.w_size),o.head=new d.Buf16(o.hash_size),o.prev=new d.Buf16(o.w_size),o.lit_bufsize=1<<n+6,o.pending_buf_size=4*o.lit_bufsize,o.pending_buf=new d.Buf8(o.pending_buf_size),o.d_buf=1*o.lit_bufsize,o.l_buf=3*o.lit_bufsize,o.level=e,o.strategy=s,o.method=r,K(t)}h=[new M(0,0,0,0,function(t,e){var r=65535;for(r>t.pending_buf_size-5&&(r=t.pending_buf_size-5);;){if(t.lookahead<=1){if(j(t),0===t.lookahead&&e===l)return A;if(0===t.lookahead)break}t.strstart+=t.lookahead,t.lookahead=0;var i=t.block_start+r;if((0===t.strstart||t.strstart>=i)&&(t.lookahead=t.strstart-i,t.strstart=i,N(t,!1),0===t.strm.avail_out))return A;if(t.strstart-t.block_start>=t.w_size-z&&(N(t,!1),0===t.strm.avail_out))return A}return t.insert=0,e===f?(N(t,!0),0===t.strm.avail_out?O:B):(t.strstart>t.block_start&&(N(t,!1),t.strm.avail_out),A)}),new M(4,4,8,4,Z),new M(4,5,16,8,Z),new M(4,6,32,32,Z),new M(4,4,16,16,W),new M(8,16,32,32,W),new M(8,16,128,128,W),new M(8,32,128,256,W),new M(32,128,258,1024,W),new M(32,258,258,4096,W)],r.deflateInit=function(t,e){return Y(t,e,v,15,8,0)},r.deflateInit2=Y,r.deflateReset=K,r.deflateResetKeep=G,r.deflateSetHeader=function(t,e){return t&&t.state?2!==t.state.wrap?_:(t.state.gzhead=e,m):_},r.deflate=function(t,e){var r,i,n,s;if(!t||!t.state||5<e||e<0)return t?R(t,_):_;if(i=t.state,!t.output||!t.input&&0!==t.avail_in||666===i.status&&e!==f)return R(t,0===t.avail_out?-5:_);if(i.strm=t,r=i.last_flush,i.last_flush=e,i.status===C)if(2===i.wrap)t.adler=0,U(i,31),U(i,139),U(i,8),i.gzhead?(U(i,(i.gzhead.text?1:0)+(i.gzhead.hcrc?2:0)+(i.gzhead.extra?4:0)+(i.gzhead.name?8:0)+(i.gzhead.comment?16:0)),U(i,255&i.gzhead.time),U(i,i.gzhead.time>>8&255),U(i,i.gzhead.time>>16&255),U(i,i.gzhead.time>>24&255),U(i,9===i.level?2:2<=i.strategy||i.level<2?4:0),U(i,255&i.gzhead.os),i.gzhead.extra&&i.gzhead.extra.length&&(U(i,255&i.gzhead.extra.length),U(i,i.gzhead.extra.length>>8&255)),i.gzhead.hcrc&&(t.adler=p(t.adler,i.pending_buf,i.pending,0)),i.gzindex=0,i.status=69):(U(i,0),U(i,0),U(i,0),U(i,0),U(i,0),U(i,9===i.level?2:2<=i.strategy||i.level<2?4:0),U(i,3),i.status=E);else{var a=v+(i.w_bits-8<<4)<<8;a|=(2<=i.strategy||i.level<2?0:i.level<6?1:6===i.level?2:3)<<6,0!==i.strstart&&(a|=32),a+=31-a%31,i.status=E,P(i,a),0!==i.strstart&&(P(i,t.adler>>>16),P(i,65535&t.adler)),t.adler=1}if(69===i.status)if(i.gzhead.extra){for(n=i.pending;i.gzindex<(65535&i.gzhead.extra.length)&&(i.pending!==i.pending_buf_size||(i.gzhead.hcrc&&i.pending>n&&(t.adler=p(t.adler,i.pending_buf,i.pending-n,n)),F(t),n=i.pending,i.pending!==i.pending_buf_size));)U(i,255&i.gzhead.extra[i.gzindex]),i.gzindex++;i.gzhead.hcrc&&i.pending>n&&(t.adler=p(t.adler,i.pending_buf,i.pending-n,n)),i.gzindex===i.gzhead.extra.length&&(i.gzindex=0,i.status=73)}else i.status=73;if(73===i.status)if(i.gzhead.name){n=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>n&&(t.adler=p(t.adler,i.pending_buf,i.pending-n,n)),F(t),n=i.pending,i.pending===i.pending_buf_size)){s=1;break}s=i.gzindex<i.gzhead.name.length?255&i.gzhead.name.charCodeAt(i.gzindex++):0,U(i,s)}while(0!==s);i.gzhead.hcrc&&i.pending>n&&(t.adler=p(t.adler,i.pending_buf,i.pending-n,n)),0===s&&(i.gzindex=0,i.status=91)}else i.status=91;if(91===i.status)if(i.gzhead.comment){n=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>n&&(t.adler=p(t.adler,i.pending_buf,i.pending-n,n)),F(t),n=i.pending,i.pending===i.pending_buf_size)){s=1;break}s=i.gzindex<i.gzhead.comment.length?255&i.gzhead.comment.charCodeAt(i.gzindex++):0,U(i,s)}while(0!==s);i.gzhead.hcrc&&i.pending>n&&(t.adler=p(t.adler,i.pending_buf,i.pending-n,n)),0===s&&(i.status=103)}else i.status=103;if(103===i.status&&(i.gzhead.hcrc?(i.pending+2>i.pending_buf_size&&F(t),i.pending+2<=i.pending_buf_size&&(U(i,255&t.adler),U(i,t.adler>>8&255),t.adler=0,i.status=E)):i.status=E),0!==i.pending){if(F(t),0===t.avail_out)return i.last_flush=-1,m}else if(0===t.avail_in&&T(e)<=T(r)&&e!==f)return R(t,-5);if(666===i.status&&0!==t.avail_in)return R(t,-5);if(0!==t.avail_in||0!==i.lookahead||e!==l&&666!==i.status){var o=2===i.strategy?function(t,e){for(var r;;){if(0===t.lookahead&&(j(t),0===t.lookahead)){if(e===l)return A;break}if(t.match_length=0,r=u._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++,r&&(N(t,!1),0===t.strm.avail_out))return A}return t.insert=0,e===f?(N(t,!0),0===t.strm.avail_out?O:B):t.last_lit&&(N(t,!1),0===t.strm.avail_out)?A:I}(i,e):3===i.strategy?function(t,e){for(var r,i,n,s,a=t.window;;){if(t.lookahead<=S){if(j(t),t.lookahead<=S&&e===l)return A;if(0===t.lookahead)break}if(t.match_length=0,t.lookahead>=x&&0<t.strstart&&(i=a[n=t.strstart-1])===a[++n]&&i===a[++n]&&i===a[++n]){s=t.strstart+S;do{}while(i===a[++n]&&i===a[++n]&&i===a[++n]&&i===a[++n]&&i===a[++n]&&i===a[++n]&&i===a[++n]&&i===a[++n]&&n<s);t.match_length=S-(s-n),t.match_length>t.lookahead&&(t.match_length=t.lookahead)}if(t.match_length>=x?(r=u._tr_tally(t,1,t.match_length-x),t.lookahead-=t.match_length,t.strstart+=t.match_length,t.match_length=0):(r=u._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++),r&&(N(t,!1),0===t.strm.avail_out))return A}return t.insert=0,e===f?(N(t,!0),0===t.strm.avail_out?O:B):t.last_lit&&(N(t,!1),0===t.strm.avail_out)?A:I}(i,e):h[i.level].func(i,e);if(o!==O&&o!==B||(i.status=666),o===A||o===O)return 0===t.avail_out&&(i.last_flush=-1),m;if(o===I&&(1===e?u._tr_align(i):5!==e&&(u._tr_stored_block(i,0,0,!1),3===e&&(D(i.head),0===i.lookahead&&(i.strstart=0,i.block_start=0,i.insert=0))),F(t),0===t.avail_out))return i.last_flush=-1,m}return e!==f?m:i.wrap<=0?1:(2===i.wrap?(U(i,255&t.adler),U(i,t.adler>>8&255),U(i,t.adler>>16&255),U(i,t.adler>>24&255),U(i,255&t.total_in),U(i,t.total_in>>8&255),U(i,t.total_in>>16&255),U(i,t.total_in>>24&255)):(P(i,t.adler>>>16),P(i,65535&t.adler)),F(t),0<i.wrap&&(i.wrap=-i.wrap),0!==i.pending?m:1)},r.deflateEnd=function(t){var e;return t&&t.state?(e=t.state.status)!==C&&69!==e&&73!==e&&91!==e&&103!==e&&e!==E&&666!==e?R(t,_):(t.state=null,e===E?R(t,-3):m):_},r.deflateSetDictionary=function(t,e){var r,i,n,s,a,o,h,u,l=e.length;if(!t||!t.state)return _;if(2===(s=(r=t.state).wrap)||1===s&&r.status!==C||r.lookahead)return _;for(1===s&&(t.adler=c(t.adler,e,l,0)),r.wrap=0,l>=r.w_size&&(0===s&&(D(r.head),r.strstart=0,r.block_start=0,r.insert=0),u=new d.Buf8(r.w_size),d.arraySet(u,e,l-r.w_size,r.w_size,0),e=u,l=r.w_size),a=t.avail_in,o=t.next_in,h=t.input,t.avail_in=l,t.next_in=0,t.input=e,j(r);r.lookahead>=x;){for(i=r.strstart,n=r.lookahead-(x-1);r.ins_h=(r.ins_h<<r.hash_shift^r.window[i+x-1])&r.hash_mask,r.prev[i&r.w_mask]=r.head[r.ins_h],r.head[r.ins_h]=i,i++,--n;);r.strstart=i,r.lookahead=x-1,j(r)}return r.strstart+=r.lookahead,r.block_start=r.strstart,r.insert=r.lookahead,r.lookahead=0,r.match_length=r.prev_length=x-1,r.match_available=0,t.next_in=o,t.input=h,t.avail_in=a,r.wrap=s,m},r.deflateInfo="pako deflate (from Nodeca project)"},{"../utils/common":41,"./adler32":43,"./crc32":45,"./messages":51,"./trees":52}],47:[function(t,e,r){"use strict";e.exports=function(){this.text=0,this.time=0,this.xflags=0,this.os=0,this.extra=null,this.extra_len=0,this.name="",this.comment="",this.hcrc=0,this.done=!1}},{}],48:[function(t,e,r){"use strict";e.exports=function(t,e){var r,i,n,s,a,o,h,u,l,f,d,c,p,m,_,g,b,v,y,w,k,x,S,z,C;r=t.state,i=t.next_in,z=t.input,n=i+(t.avail_in-5),s=t.next_out,C=t.output,a=s-(e-t.avail_out),o=s+(t.avail_out-257),h=r.dmax,u=r.wsize,l=r.whave,f=r.wnext,d=r.window,c=r.hold,p=r.bits,m=r.lencode,_=r.distcode,g=(1<<r.lenbits)-1,b=(1<<r.distbits)-1;t:do{p<15&&(c+=z[i++]<<p,p+=8,c+=z[i++]<<p,p+=8),v=m[c&g];e:for(;;){if(c>>>=y=v>>>24,p-=y,0===(y=v>>>16&255))C[s++]=65535&v;else{if(!(16&y)){if(0==(64&y)){v=m[(65535&v)+(c&(1<<y)-1)];continue e}if(32&y){r.mode=12;break t}t.msg="invalid literal/length code",r.mode=30;break t}w=65535&v,(y&=15)&&(p<y&&(c+=z[i++]<<p,p+=8),w+=c&(1<<y)-1,c>>>=y,p-=y),p<15&&(c+=z[i++]<<p,p+=8,c+=z[i++]<<p,p+=8),v=_[c&b];r:for(;;){if(c>>>=y=v>>>24,p-=y,!(16&(y=v>>>16&255))){if(0==(64&y)){v=_[(65535&v)+(c&(1<<y)-1)];continue r}t.msg="invalid distance code",r.mode=30;break t}if(k=65535&v,p<(y&=15)&&(c+=z[i++]<<p,(p+=8)<y&&(c+=z[i++]<<p,p+=8)),h<(k+=c&(1<<y)-1)){t.msg="invalid distance too far back",r.mode=30;break t}if(c>>>=y,p-=y,(y=s-a)<k){if(l<(y=k-y)&&r.sane){t.msg="invalid distance too far back",r.mode=30;break t}if(S=d,(x=0)===f){if(x+=u-y,y<w){for(w-=y;C[s++]=d[x++],--y;);x=s-k,S=C}}else if(f<y){if(x+=u+f-y,(y-=f)<w){for(w-=y;C[s++]=d[x++],--y;);if(x=0,f<w){for(w-=y=f;C[s++]=d[x++],--y;);x=s-k,S=C}}}else if(x+=f-y,y<w){for(w-=y;C[s++]=d[x++],--y;);x=s-k,S=C}for(;2<w;)C[s++]=S[x++],C[s++]=S[x++],C[s++]=S[x++],w-=3;w&&(C[s++]=S[x++],1<w&&(C[s++]=S[x++]))}else{for(x=s-k;C[s++]=C[x++],C[s++]=C[x++],C[s++]=C[x++],2<(w-=3););w&&(C[s++]=C[x++],1<w&&(C[s++]=C[x++]))}break}}break}}while(i<n&&s<o);i-=w=p>>3,c&=(1<<(p-=w<<3))-1,t.next_in=i,t.next_out=s,t.avail_in=i<n?n-i+5:5-(i-n),t.avail_out=s<o?o-s+257:257-(s-o),r.hold=c,r.bits=p}},{}],49:[function(t,e,r){"use strict";var I=t("../utils/common"),O=t("./adler32"),B=t("./crc32"),R=t("./inffast"),T=t("./inftrees"),D=1,F=2,N=0,U=-2,P=1,i=852,n=592;function L(t){return(t>>>24&255)+(t>>>8&65280)+((65280&t)<<8)+((255&t)<<24)}function 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t&&t.state?(i=t.state,e<0?(r=0,e=-e):(r=1+(e>>4),e<48&&(e&=15)),e&&(e<8||15<e)?U:(null!==i.window&&i.wbits!==e&&(i.window=null),i.wrap=r,i.wbits=e,o(t))):U}function u(t,e){var r,i;return t?(i=new s,(t.state=i).window=null,(r=h(t,e))!==N&&(t.state=null),r):U}var l,f,d=!0;function j(t){if(d){var e;for(l=new I.Buf32(512),f=new I.Buf32(32),e=0;e<144;)t.lens[e++]=8;for(;e<256;)t.lens[e++]=9;for(;e<280;)t.lens[e++]=7;for(;e<288;)t.lens[e++]=8;for(T(D,t.lens,0,288,l,0,t.work,{bits:9}),e=0;e<32;)t.lens[e++]=5;T(F,t.lens,0,32,f,0,t.work,{bits:5}),d=!1}t.lencode=l,t.lenbits=9,t.distcode=f,t.distbits=5}function Z(t,e,r,i){var n,s=t.state;return null===s.window&&(s.wsize=1<<s.wbits,s.wnext=0,s.whave=0,s.window=new I.Buf8(s.wsize)),i>=s.wsize?(I.arraySet(s.window,e,r-s.wsize,s.wsize,0),s.wnext=0,s.whave=s.wsize):(i<(n=s.wsize-s.wnext)&&(n=i),I.arraySet(s.window,e,r-i,n,s.wnext),(i-=n)?(I.arraySet(s.window,e,r-i,i,0),s.wnext=i,s.whave=s.wsize):(s.wnext+=n,s.wnext===s.wsize&&(s.wnext=0),s.whave<s.wsize&&(s.whave+=n))),0}r.inflateReset=o,r.inflateReset2=h,r.inflateResetKeep=a,r.inflateInit=function(t){return u(t,15)},r.inflateInit2=u,r.inflate=function(t,e){var r,i,n,s,a,o,h,u,l,f,d,c,p,m,_,g,b,v,y,w,k,x,S,z,C=0,E=new I.Buf8(4),A=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15];if(!t||!t.state||!t.output||!t.input&&0!==t.avail_in)return U;12===(r=t.state).mode&&(r.mode=13),a=t.next_out,n=t.output,h=t.avail_out,s=t.next_in,i=t.input,o=t.avail_in,u=r.hold,l=r.bits,f=o,d=h,x=N;t:for(;;)switch(r.mode){case P:if(0===r.wrap){r.mode=13;break}for(;l<16;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if(2&r.wrap&&35615===u){E[r.check=0]=255&u,E[1]=u>>>8&255,r.check=B(r.check,E,2,0),l=u=0,r.mode=2;break}if(r.flags=0,r.head&&(r.head.done=!1),!(1&r.wrap)||(((255&u)<<8)+(u>>8))%31){t.msg="incorrect header check",r.mode=30;break}if(8!=(15&u)){t.msg="unknown compression method",r.mode=30;break}if(l-=4,k=8+(15&(u>>>=4)),0===r.wbits)r.wbits=k;else if(k>r.wbits){t.msg="invalid window size",r.mode=30;break}r.dmax=1<<k,t.adler=r.check=1,r.mode=512&u?10:12,l=u=0;break;case 2:for(;l<16;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if(r.flags=u,8!=(255&r.flags)){t.msg="unknown compression method",r.mode=30;break}if(57344&r.flags){t.msg="unknown header flags set",r.mode=30;break}r.head&&(r.head.text=u>>8&1),512&r.flags&&(E[0]=255&u,E[1]=u>>>8&255,r.check=B(r.check,E,2,0)),l=u=0,r.mode=3;case 3:for(;l<32;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}r.head&&(r.head.time=u),512&r.flags&&(E[0]=255&u,E[1]=u>>>8&255,E[2]=u>>>16&255,E[3]=u>>>24&255,r.check=B(r.check,E,4,0)),l=u=0,r.mode=4;case 4:for(;l<16;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}r.head&&(r.head.xflags=255&u,r.head.os=u>>8),512&r.flags&&(E[0]=255&u,E[1]=u>>>8&255,r.check=B(r.check,E,2,0)),l=u=0,r.mode=5;case 5:if(1024&r.flags){for(;l<16;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}r.length=u,r.head&&(r.head.extra_len=u),512&r.flags&&(E[0]=255&u,E[1]=u>>>8&255,r.check=B(r.check,E,2,0)),l=u=0}else r.head&&(r.head.extra=null);r.mode=6;case 6:if(1024&r.flags&&(o<(c=r.length)&&(c=o),c&&(r.head&&(k=r.head.extra_len-r.length,r.head.extra||(r.head.extra=new Array(r.head.extra_len)),I.arraySet(r.head.extra,i,s,c,k)),512&r.flags&&(r.check=B(r.check,i,c,s)),o-=c,s+=c,r.length-=c),r.length))break t;r.length=0,r.mode=7;case 7:if(2048&r.flags){if(0===o)break t;for(c=0;k=i[s+c++],r.head&&k&&r.length<65536&&(r.head.name+=String.fromCharCode(k)),k&&c<o;);if(512&r.flags&&(r.check=B(r.check,i,c,s)),o-=c,s+=c,k)break t}else r.head&&(r.head.name=null);r.length=0,r.mode=8;case 8:if(4096&r.flags){if(0===o)break t;for(c=0;k=i[s+c++],r.head&&k&&r.length<65536&&(r.head.comment+=String.fromCharCode(k)),k&&c<o;);if(512&r.flags&&(r.check=B(r.check,i,c,s)),o-=c,s+=c,k)break t}else r.head&&(r.head.comment=null);r.mode=9;case 9:if(512&r.flags){for(;l<16;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if(u!==(65535&r.check)){t.msg="header crc mismatch",r.mode=30;break}l=u=0}r.head&&(r.head.hcrc=r.flags>>9&1,r.head.done=!0),t.adler=r.check=0,r.mode=12;break;case 10:for(;l<32;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}t.adler=r.check=L(u),l=u=0,r.mode=11;case 11:if(0===r.havedict)return t.next_out=a,t.avail_out=h,t.next_in=s,t.avail_in=o,r.hold=u,r.bits=l,2;t.adler=r.check=1,r.mode=12;case 12:if(5===e||6===e)break t;case 13:if(r.last){u>>>=7&l,l-=7&l,r.mode=27;break}for(;l<3;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}switch(r.last=1&u,l-=1,3&(u>>>=1)){case 0:r.mode=14;break;case 1:if(j(r),r.mode=20,6!==e)break;u>>>=2,l-=2;break t;case 2:r.mode=17;break;case 3:t.msg="invalid block type",r.mode=30}u>>>=2,l-=2;break;case 14:for(u>>>=7&l,l-=7&l;l<32;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if((65535&u)!=(u>>>16^65535)){t.msg="invalid stored block lengths",r.mode=30;break}if(r.length=65535&u,l=u=0,r.mode=15,6===e)break t;case 15:r.mode=16;case 16:if(c=r.length){if(o<c&&(c=o),h<c&&(c=h),0===c)break t;I.arraySet(n,i,s,c,a),o-=c,s+=c,h-=c,a+=c,r.length-=c;break}r.mode=12;break;case 17:for(;l<14;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if(r.nlen=257+(31&u),u>>>=5,l-=5,r.ndist=1+(31&u),u>>>=5,l-=5,r.ncode=4+(15&u),u>>>=4,l-=4,286<r.nlen||30<r.ndist){t.msg="too many length or distance symbols",r.mode=30;break}r.have=0,r.mode=18;case 18:for(;r.have<r.ncode;){for(;l<3;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}r.lens[A[r.have++]]=7&u,u>>>=3,l-=3}for(;r.have<19;)r.lens[A[r.have++]]=0;if(r.lencode=r.lendyn,r.lenbits=7,S={bits:r.lenbits},x=T(0,r.lens,0,19,r.lencode,0,r.work,S),r.lenbits=S.bits,x){t.msg="invalid code lengths set",r.mode=30;break}r.have=0,r.mode=19;case 19:for(;r.have<r.nlen+r.ndist;){for(;g=(C=r.lencode[u&(1<<r.lenbits)-1])>>>16&255,b=65535&C,!((_=C>>>24)<=l);){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if(b<16)u>>>=_,l-=_,r.lens[r.have++]=b;else{if(16===b){for(z=_+2;l<z;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if(u>>>=_,l-=_,0===r.have){t.msg="invalid bit length repeat",r.mode=30;break}k=r.lens[r.have-1],c=3+(3&u),u>>>=2,l-=2}else if(17===b){for(z=_+3;l<z;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}l-=_,k=0,c=3+(7&(u>>>=_)),u>>>=3,l-=3}else{for(z=_+7;l<z;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}l-=_,k=0,c=11+(127&(u>>>=_)),u>>>=7,l-=7}if(r.have+c>r.nlen+r.ndist){t.msg="invalid bit length repeat",r.mode=30;break}for(;c--;)r.lens[r.have++]=k}}if(30===r.mode)break;if(0===r.lens[256]){t.msg="invalid code -- missing end-of-block",r.mode=30;break}if(r.lenbits=9,S={bits:r.lenbits},x=T(D,r.lens,0,r.nlen,r.lencode,0,r.work,S),r.lenbits=S.bits,x){t.msg="invalid literal/lengths set",r.mode=30;break}if(r.distbits=6,r.distcode=r.distdyn,S={bits:r.distbits},x=T(F,r.lens,r.nlen,r.ndist,r.distcode,0,r.work,S),r.distbits=S.bits,x){t.msg="invalid distances set",r.mode=30;break}if(r.mode=20,6===e)break t;case 20:r.mode=21;case 21:if(6<=o&&258<=h){t.next_out=a,t.avail_out=h,t.next_in=s,t.avail_in=o,r.hold=u,r.bits=l,R(t,d),a=t.next_out,n=t.output,h=t.avail_out,s=t.next_in,i=t.input,o=t.avail_in,u=r.hold,l=r.bits,12===r.mode&&(r.back=-1);break}for(r.back=0;g=(C=r.lencode[u&(1<<r.lenbits)-1])>>>16&255,b=65535&C,!((_=C>>>24)<=l);){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if(g&&0==(240&g)){for(v=_,y=g,w=b;g=(C=r.lencode[w+((u&(1<<v+y)-1)>>v)])>>>16&255,b=65535&C,!(v+(_=C>>>24)<=l);){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}u>>>=v,l-=v,r.back+=v}if(u>>>=_,l-=_,r.back+=_,r.length=b,0===g){r.mode=26;break}if(32&g){r.back=-1,r.mode=12;break}if(64&g){t.msg="invalid literal/length code",r.mode=30;break}r.extra=15&g,r.mode=22;case 22:if(r.extra){for(z=r.extra;l<z;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}r.length+=u&(1<<r.extra)-1,u>>>=r.extra,l-=r.extra,r.back+=r.extra}r.was=r.length,r.mode=23;case 23:for(;g=(C=r.distcode[u&(1<<r.distbits)-1])>>>16&255,b=65535&C,!((_=C>>>24)<=l);){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if(0==(240&g)){for(v=_,y=g,w=b;g=(C=r.distcode[w+((u&(1<<v+y)-1)>>v)])>>>16&255,b=65535&C,!(v+(_=C>>>24)<=l);){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}u>>>=v,l-=v,r.back+=v}if(u>>>=_,l-=_,r.back+=_,64&g){t.msg="invalid distance code",r.mode=30;break}r.offset=b,r.extra=15&g,r.mode=24;case 24:if(r.extra){for(z=r.extra;l<z;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}r.offset+=u&(1<<r.extra)-1,u>>>=r.extra,l-=r.extra,r.back+=r.extra}if(r.offset>r.dmax){t.msg="invalid distance too far back",r.mode=30;break}r.mode=25;case 25:if(0===h)break t;if(c=d-h,r.offset>c){if((c=r.offset-c)>r.whave&&r.sane){t.msg="invalid distance too far back",r.mode=30;break}p=c>r.wnext?(c-=r.wnext,r.wsize-c):r.wnext-c,c>r.length&&(c=r.length),m=r.window}else m=n,p=a-r.offset,c=r.length;for(h<c&&(c=h),h-=c,r.length-=c;n[a++]=m[p++],--c;);0===r.length&&(r.mode=21);break;case 26:if(0===h)break t;n[a++]=r.length,h--,r.mode=21;break;case 27:if(r.wrap){for(;l<32;){if(0===o)break t;o--,u|=i[s++]<<l,l+=8}if(d-=h,t.total_out+=d,r.total+=d,d&&(t.adler=r.check=r.flags?B(r.check,n,d,a-d):O(r.check,n,d,a-d)),d=h,(r.flags?u:L(u))!==r.check){t.msg="incorrect data check",r.mode=30;break}l=u=0}r.mode=28;case 28:if(r.wrap&&r.flags){for(;l<32;){if(0===o)break t;o--,u+=i[s++]<<l,l+=8}if(u!==(4294967295&r.total)){t.msg="incorrect length check",r.mode=30;break}l=u=0}r.mode=29;case 29:x=1;break t;case 30:x=-3;break t;case 31:return-4;case 32:default:return U}return t.next_out=a,t.avail_out=h,t.next_in=s,t.avail_in=o,r.hold=u,r.bits=l,(r.wsize||d!==t.avail_out&&r.mode<30&&(r.mode<27||4!==e))&&Z(t,t.output,t.next_out,d-t.avail_out)?(r.mode=31,-4):(f-=t.avail_in,d-=t.avail_out,t.total_in+=f,t.total_out+=d,r.total+=d,r.wrap&&d&&(t.adler=r.check=r.flags?B(r.check,n,d,t.next_out-d):O(r.check,n,d,t.next_out-d)),t.data_type=r.bits+(r.last?64:0)+(12===r.mode?128:0)+(20===r.mode||15===r.mode?256:0),(0==f&&0===d||4===e)&&x===N&&(x=-5),x)},r.inflateEnd=function(t){if(!t||!t.state)return U;var e=t.state;return e.window&&(e.window=null),t.state=null,N},r.inflateGetHeader=function(t,e){var r;return t&&t.state?0==(2&(r=t.state).wrap)?U:((r.head=e).done=!1,N):U},r.inflateSetDictionary=function(t,e){var r,i=e.length;return t&&t.state?0!==(r=t.state).wrap&&11!==r.mode?U:11===r.mode&&O(1,e,i,0)!==r.check?-3:Z(t,e,i,i)?(r.mode=31,-4):(r.havedict=1,N):U},r.inflateInfo="pako inflate (from Nodeca project)"},{"../utils/common":41,"./adler32":43,"./crc32":45,"./inffast":48,"./inftrees":50}],50:[function(t,e,r){"use strict";var D=t("../utils/common"),F=[3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258,0,0],N=[16,16,16,16,16,16,16,16,17,17,17,17,18,18,18,18,19,19,19,19,20,20,20,20,21,21,21,21,16,72,78],U=[1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0],P=[16,16,16,16,17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,64,64];e.exports=function(t,e,r,i,n,s,a,o){var h,u,l,f,d,c,p,m,_,g=o.bits,b=0,v=0,y=0,w=0,k=0,x=0,S=0,z=0,C=0,E=0,A=null,I=0,O=new D.Buf16(16),B=new D.Buf16(16),R=null,T=0;for(b=0;b<=15;b++)O[b]=0;for(v=0;v<i;v++)O[e[r+v]]++;for(k=g,w=15;1<=w&&0===O[w];w--);if(w<k&&(k=w),0===w)return n[s++]=20971520,n[s++]=20971520,o.bits=1,0;for(y=1;y<w&&0===O[y];y++);for(k<y&&(k=y),b=z=1;b<=15;b++)if(z<<=1,(z-=O[b])<0)return-1;if(0<z&&(0===t||1!==w))return-1;for(B[1]=0,b=1;b<15;b++)B[b+1]=B[b]+O[b];for(v=0;v<i;v++)0!==e[r+v]&&(a[B[e[r+v]]++]=v);if(c=0===t?(A=R=a,19):1===t?(A=F,I-=257,R=N,T-=257,256):(A=U,R=P,-1),b=y,d=s,S=v=E=0,l=-1,f=(C=1<<(x=k))-1,1===t&&852<C||2===t&&592<C)return 1;for(;;){for(p=b-S,_=a[v]<c?(m=0,a[v]):a[v]>c?(m=R[T+a[v]],A[I+a[v]]):(m=96,0),h=1<<b-S,y=u=1<<x;n[d+(E>>S)+(u-=h)]=p<<24|m<<16|_|0,0!==u;);for(h=1<<b-1;E&h;)h>>=1;if(0!==h?(E&=h-1,E+=h):E=0,v++,0==--O[b]){if(b===w)break;b=e[r+a[v]]}if(k<b&&(E&f)!==l){for(0===S&&(S=k),d+=y,z=1<<(x=b-S);x+S<w&&!((z-=O[x+S])<=0);)x++,z<<=1;if(C+=1<<x,1===t&&852<C||2===t&&592<C)return 1;n[l=E&f]=k<<24|x<<16|d-s|0}}return 0!==E&&(n[d+E]=b-S<<24|64<<16|0),o.bits=k,0}},{"../utils/common":41}],51:[function(t,e,r){"use strict";e.exports={2:"need dictionary",1:"stream end",0:"","-1":"file error","-2":"stream error","-3":"data error","-4":"insufficient memory","-5":"buffer error","-6":"incompatible version"}},{}],52:[function(t,e,r){"use strict";var n=t("../utils/common"),o=0,h=1;function i(t){for(var e=t.length;0<=--e;)t[e]=0}var s=0,a=29,u=256,l=u+1+a,f=30,d=19,_=2*l+1,g=15,c=16,p=7,m=256,b=16,v=17,y=18,w=[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0],k=[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13],x=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7],S=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],z=new Array(2*(l+2));i(z);var C=new Array(2*f);i(C);var E=new Array(512);i(E);var A=new Array(256);i(A);var I=new Array(a);i(I);var O,B,R,T=new Array(f);function D(t,e,r,i,n){this.static_tree=t,this.extra_bits=e,this.extra_base=r,this.elems=i,this.max_length=n,this.has_stree=t&&t.length}function F(t,e){this.dyn_tree=t,this.max_code=0,this.stat_desc=e}function N(t){return t<256?E[t]:E[256+(t>>>7)]}function U(t,e){t.pending_buf[t.pending++]=255&e,t.pending_buf[t.pending++]=e>>>8&255}function P(t,e,r){t.bi_valid>c-r?(t.bi_buf|=e<<t.bi_valid&65535,U(t,t.bi_buf),t.bi_buf=e>>c-t.bi_valid,t.bi_valid+=r-c):(t.bi_buf|=e<<t.bi_valid&65535,t.bi_valid+=r)}function L(t,e,r){P(t,r[2*e],r[2*e+1])}function j(t,e){for(var r=0;r|=1&t,t>>>=1,r<<=1,0<--e;);return r>>>1}function Z(t,e,r){var i,n,s=new Array(g+1),a=0;for(i=1;i<=g;i++)s[i]=a=a+r[i-1]<<1;for(n=0;n<=e;n++){var o=t[2*n+1];0!==o&&(t[2*n]=j(s[o]++,o))}}function W(t){var e;for(e=0;e<l;e++)t.dyn_ltree[2*e]=0;for(e=0;e<f;e++)t.dyn_dtree[2*e]=0;for(e=0;e<d;e++)t.bl_tree[2*e]=0;t.dyn_ltree[2*m]=1,t.opt_len=t.static_len=0,t.last_lit=t.matches=0}function M(t){8<t.bi_valid?U(t,t.bi_buf):0<t.bi_valid&&(t.pending_buf[t.pending++]=t.bi_buf),t.bi_buf=0,t.bi_valid=0}function H(t,e,r,i){var n=2*e,s=2*r;return t[n]<t[s]||t[n]===t[s]&&i[e]<=i[r]}function G(t,e,r){for(var i=t.heap[r],n=r<<1;n<=t.heap_len&&(n<t.heap_len&&H(e,t.heap[n+1],t.heap[n],t.depth)&&n++,!H(e,i,t.heap[n],t.depth));)t.heap[r]=t.heap[n],r=n,n<<=1;t.heap[r]=i}function K(t,e,r){var i,n,s,a,o=0;if(0!==t.last_lit)for(;i=t.pending_buf[t.d_buf+2*o]<<8|t.pending_buf[t.d_buf+2*o+1],n=t.pending_buf[t.l_buf+o],o++,0===i?L(t,n,e):(L(t,(s=A[n])+u+1,e),0!==(a=w[s])&&P(t,n-=I[s],a),L(t,s=N(--i),r),0!==(a=k[s])&&P(t,i-=T[s],a)),o<t.last_lit;);L(t,m,e)}function Y(t,e){var r,i,n,s=e.dyn_tree,a=e.stat_desc.static_tree,o=e.stat_desc.has_stree,h=e.stat_desc.elems,u=-1;for(t.heap_len=0,t.heap_max=_,r=0;r<h;r++)0!==s[2*r]?(t.heap[++t.heap_len]=u=r,t.depth[r]=0):s[2*r+1]=0;for(;t.heap_len<2;)s[2*(n=t.heap[++t.heap_len]=u<2?++u:0)]=1,t.depth[n]=0,t.opt_len--,o&&(t.static_len-=a[2*n+1]);for(e.max_code=u,r=t.heap_len>>1;1<=r;r--)G(t,s,r);for(n=h;r=t.heap[1],t.heap[1]=t.heap[t.heap_len--],G(t,s,1),i=t.heap[1],t.heap[--t.heap_max]=r,t.heap[--t.heap_max]=i,s[2*n]=s[2*r]+s[2*i],t.depth[n]=(t.depth[r]>=t.depth[i]?t.depth[r]:t.depth[i])+1,s[2*r+1]=s[2*i+1]=n,t.heap[1]=n++,G(t,s,1),2<=t.heap_len;);t.heap[--t.heap_max]=t.heap[1],function(t,e){var r,i,n,s,a,o,h=e.dyn_tree,u=e.max_code,l=e.stat_desc.static_tree,f=e.stat_desc.has_stree,d=e.stat_desc.extra_bits,c=e.stat_desc.extra_base,p=e.stat_desc.max_length,m=0;for(s=0;s<=g;s++)t.bl_count[s]=0;for(h[2*t.heap[t.heap_max]+1]=0,r=t.heap_max+1;r<_;r++)p<(s=h[2*h[2*(i=t.heap[r])+1]+1]+1)&&(s=p,m++),h[2*i+1]=s,u<i||(t.bl_count[s]++,a=0,c<=i&&(a=d[i-c]),o=h[2*i],t.opt_len+=o*(s+a),f&&(t.static_len+=o*(l[2*i+1]+a)));if(0!==m){do{for(s=p-1;0===t.bl_count[s];)s--;t.bl_count[s]--,t.bl_count[s+1]+=2,t.bl_count[p]--,m-=2}while(0<m);for(s=p;0!==s;s--)for(i=t.bl_count[s];0!==i;)u<(n=t.heap[--r])||(h[2*n+1]!==s&&(t.opt_len+=(s-h[2*n+1])*h[2*n],h[2*n+1]=s),i--)}}(t,e),Z(s,u,t.bl_count)}function X(t,e,r){var i,n,s=-1,a=e[1],o=0,h=7,u=4;for(0===a&&(h=138,u=3),e[2*(r+1)+1]=65535,i=0;i<=r;i++)n=a,a=e[2*(i+1)+1],++o<h&&n===a||(o<u?t.bl_tree[2*n]+=o:0!==n?(n!==s&&t.bl_tree[2*n]++,t.bl_tree[2*b]++):o<=10?t.bl_tree[2*v]++:t.bl_tree[2*y]++,s=n,u=(o=0)===a?(h=138,3):n===a?(h=6,3):(h=7,4))}function V(t,e,r){var i,n,s=-1,a=e[1],o=0,h=7,u=4;for(0===a&&(h=138,u=3),i=0;i<=r;i++)if(n=a,a=e[2*(i+1)+1],!(++o<h&&n===a)){if(o<u)for(;L(t,n,t.bl_tree),0!=--o;);else 0!==n?(n!==s&&(L(t,n,t.bl_tree),o--),L(t,b,t.bl_tree),P(t,o-3,2)):o<=10?(L(t,v,t.bl_tree),P(t,o-3,3)):(L(t,y,t.bl_tree),P(t,o-11,7));s=n,u=(o=0)===a?(h=138,3):n===a?(h=6,3):(h=7,4)}}i(T);var q=!1;function J(t,e,r,i){P(t,(s<<1)+(i?1:0),3),function(t,e,r,i){M(t),i&&(U(t,r),U(t,~r)),n.arraySet(t.pending_buf,t.window,e,r,t.pending),t.pending+=r}(t,e,r,!0)}r._tr_init=function(t){q||(function(){var t,e,r,i,n,s=new Array(g+1);for(i=r=0;i<a-1;i++)for(I[i]=r,t=0;t<1<<w[i];t++)A[r++]=i;for(A[r-1]=i,i=n=0;i<16;i++)for(T[i]=n,t=0;t<1<<k[i];t++)E[n++]=i;for(n>>=7;i<f;i++)for(T[i]=n<<7,t=0;t<1<<k[i]-7;t++)E[256+n++]=i;for(e=0;e<=g;e++)s[e]=0;for(t=0;t<=143;)z[2*t+1]=8,t++,s[8]++;for(;t<=255;)z[2*t+1]=9,t++,s[9]++;for(;t<=279;)z[2*t+1]=7,t++,s[7]++;for(;t<=287;)z[2*t+1]=8,t++,s[8]++;for(Z(z,l+1,s),t=0;t<f;t++)C[2*t+1]=5,C[2*t]=j(t,5);O=new D(z,w,u+1,l,g),B=new D(C,k,0,f,g),R=new D(new Array(0),x,0,d,p)}(),q=!0),t.l_desc=new F(t.dyn_ltree,O),t.d_desc=new F(t.dyn_dtree,B),t.bl_desc=new F(t.bl_tree,R),t.bi_buf=0,t.bi_valid=0,W(t)},r._tr_stored_block=J,r._tr_flush_block=function(t,e,r,i){var n,s,a=0;0<t.level?(2===t.strm.data_type&&(t.strm.data_type=function(t){var e,r=4093624447;for(e=0;e<=31;e++,r>>>=1)if(1&r&&0!==t.dyn_ltree[2*e])return o;if(0!==t.dyn_ltree[18]||0!==t.dyn_ltree[20]||0!==t.dyn_ltree[26])return h;for(e=32;e<u;e++)if(0!==t.dyn_ltree[2*e])return h;return o}(t)),Y(t,t.l_desc),Y(t,t.d_desc),a=function(t){var e;for(X(t,t.dyn_ltree,t.l_desc.max_code),X(t,t.dyn_dtree,t.d_desc.max_code),Y(t,t.bl_desc),e=d-1;3<=e&&0===t.bl_tree[2*S[e]+1];e--);return t.opt_len+=3*(e+1)+5+5+4,e}(t),n=t.opt_len+3+7>>>3,(s=t.static_len+3+7>>>3)<=n&&(n=s)):n=s=r+5,r+4<=n&&-1!==e?J(t,e,r,i):4===t.strategy||s===n?(P(t,2+(i?1:0),3),K(t,z,C)):(P(t,4+(i?1:0),3),function(t,e,r,i){var n;for(P(t,e-257,5),P(t,r-1,5),P(t,i-4,4),n=0;n<i;n++)P(t,t.bl_tree[2*S[n]+1],3);V(t,t.dyn_ltree,e-1),V(t,t.dyn_dtree,r-1)}(t,t.l_desc.max_code+1,t.d_desc.max_code+1,a+1),K(t,t.dyn_ltree,t.dyn_dtree)),W(t),i&&M(t)},r._tr_tally=function(t,e,r){return t.pending_buf[t.d_buf+2*t.last_lit]=e>>>8&255,t.pending_buf[t.d_buf+2*t.last_lit+1]=255&e,t.pending_buf[t.l_buf+t.last_lit]=255&r,t.last_lit++,0===e?t.dyn_ltree[2*r]++:(t.matches++,e--,t.dyn_ltree[2*(A[r]+u+1)]++,t.dyn_dtree[2*N(e)]++),t.last_lit===t.lit_bufsize-1},r._tr_align=function(t){P(t,2,3),L(t,m,z),function(t){16===t.bi_valid?(U(t,t.bi_buf),t.bi_buf=0,t.bi_valid=0):8<=t.bi_valid&&(t.pending_buf[t.pending++]=255&t.bi_buf,t.bi_buf>>=8,t.bi_valid-=8)}(t)}},{"../utils/common":41}],53:[function(t,e,r){"use strict";e.exports=function(){this.input=null,this.next_in=0,this.avail_in=0,this.total_in=0,this.output=null,this.next_out=0,this.avail_out=0,this.total_out=0,this.msg="",this.state=null,this.data_type=2,this.adler=0}},{}],54:[function(t,e,r){"use strict";e.exports="function"==typeof setImmediate?setImmediate:function(){var t=[].slice.apply(arguments);t.splice(1,0,0),setTimeout.apply(null,t)}},{}]},{},[10])(10)});

/***/ }),

/***/ "./node_modules/lie/lib/browser.js":
/*!*****************************************!*\
  !*** ./node_modules/lie/lib/browser.js ***!
  \*****************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

var immediate = __webpack_require__(/*! immediate */ "./node_modules/immediate/lib/browser.js");

/* istanbul ignore next */
function INTERNAL() {}

var handlers = {};

var REJECTED = ['REJECTED'];
var FULFILLED = ['FULFILLED'];
var PENDING = ['PENDING'];

module.exports = Promise;

function Promise(resolver) {
  if (typeof resolver !== 'function') {
    throw new TypeError('resolver must be a function');
  }
  this.state = PENDING;
  this.queue = [];
  this.outcome = void 0;
  if (resolver !== INTERNAL) {
    safelyResolveThenable(this, resolver);
  }
}

Promise.prototype["finally"] = function (callback) {
  if (typeof callback !== 'function') {
    return this;
  }
  var p = this.constructor;
  return this.then(resolve, reject);

  function resolve(value) {
    function yes () {
      return value;
    }
    return p.resolve(callback()).then(yes);
  }
  function reject(reason) {
    function no () {
      throw reason;
    }
    return p.resolve(callback()).then(no);
  }
};
Promise.prototype["catch"] = function (onRejected) {
  return this.then(null, onRejected);
};
Promise.prototype.then = function (onFulfilled, onRejected) {
  if (typeof onFulfilled !== 'function' && this.state === FULFILLED ||
    typeof onRejected !== 'function' && this.state === REJECTED) {
    return this;
  }
  var promise = new this.constructor(INTERNAL);
  if (this.state !== PENDING) {
    var resolver = this.state === FULFILLED ? onFulfilled : onRejected;
    unwrap(promise, resolver, this.outcome);
  } else {
    this.queue.push(new QueueItem(promise, onFulfilled, onRejected));
  }

  return promise;
};
function QueueItem(promise, onFulfilled, onRejected) {
  this.promise = promise;
  if (typeof onFulfilled === 'function') {
    this.onFulfilled = onFulfilled;
    this.callFulfilled = this.otherCallFulfilled;
  }
  if (typeof onRejected === 'function') {
    this.onRejected = onRejected;
    this.callRejected = this.otherCallRejected;
  }
}
QueueItem.prototype.callFulfilled = function (value) {
  handlers.resolve(this.promise, value);
};
QueueItem.prototype.otherCallFulfilled = function (value) {
  unwrap(this.promise, this.onFulfilled, value);
};
QueueItem.prototype.callRejected = function (value) {
  handlers.reject(this.promise, value);
};
QueueItem.prototype.otherCallRejected = function (value) {
  unwrap(this.promise, this.onRejected, value);
};

function unwrap(promise, func, value) {
  immediate(function () {
    var returnValue;
    try {
      returnValue = func(value);
    } catch (e) {
      return handlers.reject(promise, e);
    }
    if (returnValue === promise) {
      handlers.reject(promise, new TypeError('Cannot resolve promise with itself'));
    } else {
      handlers.resolve(promise, returnValue);
    }
  });
}

handlers.resolve = function (self, value) {
  var result = tryCatch(getThen, value);
  if (result.status === 'error') {
    return handlers.reject(self, result.value);
  }
  var thenable = result.value;

  if (thenable) {
    safelyResolveThenable(self, thenable);
  } else {
    self.state = FULFILLED;
    self.outcome = value;
    var i = -1;
    var len = self.queue.length;
    while (++i < len) {
      self.queue[i].callFulfilled(value);
    }
  }
  return self;
};
handlers.reject = function (self, error) {
  self.state = REJECTED;
  self.outcome = error;
  var i = -1;
  var len = self.queue.length;
  while (++i < len) {
    self.queue[i].callRejected(error);
  }
  return self;
};

function getThen(obj) {
  // Make sure we only access the accessor once as required by the spec
  var then = obj && obj.then;
  if (obj && (typeof obj === 'object' || typeof obj === 'function') && typeof then === 'function') {
    return function appyThen() {
      then.apply(obj, arguments);
    };
  }
}

function safelyResolveThenable(self, thenable) {
  // Either fulfill, reject or reject with error
  var called = false;
  function onError(value) {
    if (called) {
      return;
    }
    called = true;
    handlers.reject(self, value);
  }

  function onSuccess(value) {
    if (called) {
      return;
    }
    called = true;
    handlers.resolve(self, value);
  }

  function tryToUnwrap() {
    thenable(onSuccess, onError);
  }

  var result = tryCatch(tryToUnwrap);
  if (result.status === 'error') {
    onError(result.value);
  }
}

function tryCatch(func, value) {
  var out = {};
  try {
    out.value = func(value);
    out.status = 'success';
  } catch (e) {
    out.status = 'error';
    out.value = e;
  }
  return out;
}

Promise.resolve = resolve;
function resolve(value) {
  if (value instanceof this) {
    return value;
  }
  return handlers.resolve(new this(INTERNAL), value);
}

Promise.reject = reject;
function reject(reason) {
  var promise = new this(INTERNAL);
  return handlers.reject(promise, reason);
}

Promise.all = all;
function all(iterable) {
  var self = this;
  if (Object.prototype.toString.call(iterable) !== '[object Array]') {
    return this.reject(new TypeError('must be an array'));
  }

  var len = iterable.length;
  var called = false;
  if (!len) {
    return this.resolve([]);
  }

  var values = new Array(len);
  var resolved = 0;
  var i = -1;
  var promise = new this(INTERNAL);

  while (++i < len) {
    allResolver(iterable[i], i);
  }
  return promise;
  function allResolver(value, i) {
    self.resolve(value).then(resolveFromAll, function (error) {
      if (!called) {
        called = true;
        handlers.reject(promise, error);
      }
    });
    function resolveFromAll(outValue) {
      values[i] = outValue;
      if (++resolved === len && !called) {
        called = true;
        handlers.resolve(promise, values);
      }
    }
  }
}

Promise.race = race;
function race(iterable) {
  var self = this;
  if (Object.prototype.toString.call(iterable) !== '[object Array]') {
    return this.reject(new TypeError('must be an array'));
  }

  var len = iterable.length;
  var called = false;
  if (!len) {
    return this.resolve([]);
  }

  var i = -1;
  var promise = new this(INTERNAL);

  while (++i < len) {
    resolver(iterable[i]);
  }
  return promise;
  function resolver(value) {
    self.resolve(value).then(function (response) {
      if (!called) {
        called = true;
        handlers.resolve(promise, response);
      }
    }, function (error) {
      if (!called) {
        called = true;
        handlers.reject(promise, error);
      }
    });
  }
}


/***/ }),

/***/ "./node_modules/lru-cache/lib/lru-cache.js":
/*!*************************************************!*\
  !*** ./node_modules/lru-cache/lib/lru-cache.js ***!
  \*************************************************/
/***/ ((module) => {

;(function () { // closure for web browsers

if ( true && module.exports) {
  module.exports = LRUCache
} else {
  // just set the global for non-node platforms.
  this.LRUCache = LRUCache
}

function hOP (obj, key) {
  return Object.prototype.hasOwnProperty.call(obj, key)
}

function naiveLength () { return 1 }

var didTypeWarning = false
function typeCheckKey(key) {
  if (!didTypeWarning && typeof key !== 'string' && typeof key !== 'number') {
    didTypeWarning = true
    console.error(new TypeError("LRU: key must be a string or number. Almost certainly a bug! " + typeof key).stack)
  }
}

function LRUCache (options) {
  if (!(this instanceof LRUCache))
    return new LRUCache(options)

  if (typeof options === 'number')
    options = { max: options }

  if (!options)
    options = {}

  this._max = options.max
  // Kind of weird to have a default max of Infinity, but oh well.
  if (!this._max || !(typeof this._max === "number") || this._max <= 0 )
    this._max = Infinity

  this._lengthCalculator = options.length || naiveLength
  if (typeof this._lengthCalculator !== "function")
    this._lengthCalculator = naiveLength

  this._allowStale = options.stale || false
  this._maxAge = options.maxAge || null
  this._dispose = options.dispose
  this.reset()
}

// resize the cache when the max changes.
Object.defineProperty(LRUCache.prototype, "max",
  { set : function (mL) {
      if (!mL || !(typeof mL === "number") || mL <= 0 ) mL = Infinity
      this._max = mL
      if (this._length > this._max) trim(this)
    }
  , get : function () { return this._max }
  , enumerable : true
  })

// resize the cache when the lengthCalculator changes.
Object.defineProperty(LRUCache.prototype, "lengthCalculator",
  { set : function (lC) {
      if (typeof lC !== "function") {
        this._lengthCalculator = naiveLength
        this._length = this._itemCount
        for (var key in this._cache) {
          this._cache[key].length = 1
        }
      } else {
        this._lengthCalculator = lC
        this._length = 0
        for (var key in this._cache) {
          this._cache[key].length = this._lengthCalculator(this._cache[key].value)
          this._length += this._cache[key].length
        }
      }

      if (this._length > this._max) trim(this)
    }
  , get : function () { return this._lengthCalculator }
  , enumerable : true
  })

Object.defineProperty(LRUCache.prototype, "length",
  { get : function () { return this._length }
  , enumerable : true
  })


Object.defineProperty(LRUCache.prototype, "itemCount",
  { get : function () { return this._itemCount }
  , enumerable : true
  })

LRUCache.prototype.forEach = function (fn, thisp) {
  thisp = thisp || this
  var i = 0
  var itemCount = this._itemCount

  for (var k = this._mru - 1; k >= 0 && i < itemCount; k--) if (this._lruList[k]) {
    i++
    var hit = this._lruList[k]
    if (isStale(this, hit)) {
      del(this, hit)
      if (!this._allowStale) hit = undefined
    }
    if (hit) {
      fn.call(thisp, hit.value, hit.key, this)
    }
  }
}

LRUCache.prototype.keys = function () {
  var keys = new Array(this._itemCount)
  var i = 0
  for (var k = this._mru - 1; k >= 0 && i < this._itemCount; k--) if (this._lruList[k]) {
    var hit = this._lruList[k]
    keys[i++] = hit.key
  }
  return keys
}

LRUCache.prototype.values = function () {
  var values = new Array(this._itemCount)
  var i = 0
  for (var k = this._mru - 1; k >= 0 && i < this._itemCount; k--) if (this._lruList[k]) {
    var hit = this._lruList[k]
    values[i++] = hit.value
  }
  return values
}

LRUCache.prototype.reset = function () {
  if (this._dispose && this._cache) {
    for (var k in this._cache) {
      this._dispose(k, this._cache[k].value)
    }
  }

  this._cache = Object.create(null) // hash of items by key
  this._lruList = Object.create(null) // list of items in order of use recency
  this._mru = 0 // most recently used
  this._lru = 0 // least recently used
  this._length = 0 // number of items in the list
  this._itemCount = 0
}

LRUCache.prototype.dump = function () {
  var arr = []
  var i = 0

  for (var k = this._mru - 1; k >= 0 && i < this._itemCount; k--) if (this._lruList[k]) {
    var hit = this._lruList[k]
    if (!isStale(this, hit)) {
      //Do not store staled hits
      ++i
      arr.push({
        k: hit.key,
        v: hit.value,
        e: hit.now + (hit.maxAge || 0)
      });
    }
  }
  //arr has the most read first
  return arr
}

LRUCache.prototype.dumpLru = function () {
  return this._lruList
}

LRUCache.prototype.set = function (key, value, maxAge) {
  maxAge = maxAge || this._maxAge
  typeCheckKey(key)

  var now = maxAge ? Date.now() : 0
  var len = this._lengthCalculator(value)

  if (hOP(this._cache, key)) {
    if (len > this._max) {
      del(this, this._cache[key])
      return false
    }
    // dispose of the old one before overwriting
    if (this._dispose)
      this._dispose(key, this._cache[key].value)

    this._cache[key].now = now
    this._cache[key].maxAge = maxAge
    this._cache[key].value = value
    this._length += (len - this._cache[key].length)
    this._cache[key].length = len
    this.get(key)

    if (this._length > this._max)
      trim(this)

    return true
  }

  var hit = new Entry(key, value, this._mru++, len, now, maxAge)

  // oversized objects fall out of cache automatically.
  if (hit.length > this._max) {
    if (this._dispose) this._dispose(key, value)
    return false
  }

  this._length += hit.length
  this._lruList[hit.lu] = this._cache[key] = hit
  this._itemCount ++

  if (this._length > this._max)
    trim(this)

  return true
}

LRUCache.prototype.has = function (key) {
  typeCheckKey(key)
  if (!hOP(this._cache, key)) return false
  var hit = this._cache[key]
  if (isStale(this, hit)) {
    return false
  }
  return true
}

LRUCache.prototype.get = function (key) {
  typeCheckKey(key)
  return get(this, key, true)
}

LRUCache.prototype.peek = function (key) {
  typeCheckKey(key)
  return get(this, key, false)
}

LRUCache.prototype.pop = function () {
  var hit = this._lruList[this._lru]
  del(this, hit)
  return hit || null
}

LRUCache.prototype.del = function (key) {
  typeCheckKey(key)
  del(this, this._cache[key])
}

LRUCache.prototype.load = function (arr) {
  //reset the cache
  this.reset();

  var now = Date.now()
  //A previous serialized cache has the most recent items first
  for (var l = arr.length - 1; l >= 0; l-- ) {
    var hit = arr[l]
    typeCheckKey(hit.k)
    var expiresAt = hit.e || 0
    if (expiresAt === 0) {
      //the item was created without expiration in a non aged cache
      this.set(hit.k, hit.v)
    } else {
      var maxAge = expiresAt - now
      //dont add already expired items
      if (maxAge > 0) this.set(hit.k, hit.v, maxAge)
    }
  }
}

function get (self, key, doUse) {
  typeCheckKey(key)
  var hit = self._cache[key]
  if (hit) {
    if (isStale(self, hit)) {
      del(self, hit)
      if (!self._allowStale) hit = undefined
    } else {
      if (doUse) use(self, hit)
    }
    if (hit) hit = hit.value
  }
  return hit
}

function isStale(self, hit) {
  if (!hit || (!hit.maxAge && !self._maxAge)) return false
  var stale = false;
  var diff = Date.now() - hit.now
  if (hit.maxAge) {
    stale = diff > hit.maxAge
  } else {
    stale = self._maxAge && (diff > self._maxAge)
  }
  return stale;
}

function use (self, hit) {
  shiftLU(self, hit)
  hit.lu = self._mru ++
  self._lruList[hit.lu] = hit
}

function trim (self) {
  while (self._lru < self._mru && self._length > self._max)
    del(self, self._lruList[self._lru])
}

function shiftLU (self, hit) {
  delete self._lruList[ hit.lu ]
  while (self._lru < self._mru && !self._lruList[self._lru]) self._lru ++
}

function del (self, hit) {
  if (hit) {
    if (self._dispose) self._dispose(hit.key, hit.value)
    self._length -= hit.length
    self._itemCount --
    delete self._cache[ hit.key ]
    shiftLU(self, hit)
  }
}

// classy, since V8 prefers predictable objects.
function Entry (key, value, lu, length, now, maxAge) {
  this.key = key
  this.value = value
  this.lu = lu
  this.length = length
  this.now = now
  if (maxAge) this.maxAge = maxAge
}

})()


/***/ }),

/***/ "./node_modules/mgrs/mgrs.js":
/*!***********************************!*\
  !*** ./node_modules/mgrs/mgrs.js ***!
  \***********************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "toPoint": () => (/* binding */ toPoint)
/* harmony export */ });



/**
 * UTM zones are grouped, and assigned to one of a group of 6
 * sets.
 *
 * {int} @private
 */
var NUM_100K_SETS = 6;

/**
 * The column letters (for easting) of the lower left value, per
 * set.
 *
 * {string} @private
 */
var SET_ORIGIN_COLUMN_LETTERS = 'AJSAJS';

/**
 * The row letters (for northing) of the lower left value, per
 * set.
 *
 * {string} @private
 */
var SET_ORIGIN_ROW_LETTERS = 'AFAFAF';

var A = 65; // A
var I = 73; // I
var O = 79; // O
var V = 86; // V
var Z = 90; // Z
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  forward: forward,
  inverse: inverse,
  toPoint: toPoint
});
/**
 * Conversion of lat/lon to MGRS.
 *
 * @param {object} ll Object literal with lat and lon properties on a
 *     WGS84 ellipsoid.
 * @param {int} accuracy Accuracy in digits (5 for 1 m, 4 for 10 m, 3 for
 *      100 m, 2 for 1000 m or 1 for 10000 m). Optional, default is 5.
 * @return {string} the MGRS string for the given location and accuracy.
 */
function forward(ll, accuracy) {
  accuracy = accuracy || 5; // default accuracy 1m
  return encode(LLtoUTM({
    lat: ll[1],
    lon: ll[0]
  }), accuracy);
};

/**
 * Conversion of MGRS to lat/lon.
 *
 * @param {string} mgrs MGRS string.
 * @return {array} An array with left (longitude), bottom (latitude), right
 *     (longitude) and top (latitude) values in WGS84, representing the
 *     bounding box for the provided MGRS reference.
 */
function inverse(mgrs) {
  var bbox = UTMtoLL(decode(mgrs.toUpperCase()));
  if (bbox.lat && bbox.lon) {
    return [bbox.lon, bbox.lat, bbox.lon, bbox.lat];
  }
  return [bbox.left, bbox.bottom, bbox.right, bbox.top];
};

function toPoint(mgrs) {
  var bbox = UTMtoLL(decode(mgrs.toUpperCase()));
  if (bbox.lat && bbox.lon) {
    return [bbox.lon, bbox.lat];
  }
  return [(bbox.left + bbox.right) / 2, (bbox.top + bbox.bottom) / 2];
};
/**
 * Conversion from degrees to radians.
 *
 * @private
 * @param {number} deg the angle in degrees.
 * @return {number} the angle in radians.
 */
function degToRad(deg) {
  return (deg * (Math.PI / 180.0));
}

/**
 * Conversion from radians to degrees.
 *
 * @private
 * @param {number} rad the angle in radians.
 * @return {number} the angle in degrees.
 */
function radToDeg(rad) {
  return (180.0 * (rad / Math.PI));
}

/**
 * Converts a set of Longitude and Latitude co-ordinates to UTM
 * using the WGS84 ellipsoid.
 *
 * @private
 * @param {object} ll Object literal with lat and lon properties
 *     representing the WGS84 coordinate to be converted.
 * @return {object} Object literal containing the UTM value with easting,
 *     northing, zoneNumber and zoneLetter properties, and an optional
 *     accuracy property in digits. Returns null if the conversion failed.
 */
function LLtoUTM(ll) {
  var Lat = ll.lat;
  var Long = ll.lon;
  var a = 6378137.0; //ellip.radius;
  var eccSquared = 0.00669438; //ellip.eccsq;
  var k0 = 0.9996;
  var LongOrigin;
  var eccPrimeSquared;
  var N, T, C, A, M;
  var LatRad = degToRad(Lat);
  var LongRad = degToRad(Long);
  var LongOriginRad;
  var ZoneNumber;
  // (int)
  ZoneNumber = Math.floor((Long + 180) / 6) + 1;

  //Make sure the longitude 180.00 is in Zone 60
  if (Long === 180) {
    ZoneNumber = 60;
  }

  // Special zone for Norway
  if (Lat >= 56.0 && Lat < 64.0 && Long >= 3.0 && Long < 12.0) {
    ZoneNumber = 32;
  }

  // Special zones for Svalbard
  if (Lat >= 72.0 && Lat < 84.0) {
    if (Long >= 0.0 && Long < 9.0) {
      ZoneNumber = 31;
    }
    else if (Long >= 9.0 && Long < 21.0) {
      ZoneNumber = 33;
    }
    else if (Long >= 21.0 && Long < 33.0) {
      ZoneNumber = 35;
    }
    else if (Long >= 33.0 && Long < 42.0) {
      ZoneNumber = 37;
    }
  }

  LongOrigin = (ZoneNumber - 1) * 6 - 180 + 3; //+3 puts origin
  // in middle of
  // zone
  LongOriginRad = degToRad(LongOrigin);

  eccPrimeSquared = (eccSquared) / (1 - eccSquared);

  N = a / Math.sqrt(1 - eccSquared * Math.sin(LatRad) * Math.sin(LatRad));
  T = Math.tan(LatRad) * Math.tan(LatRad);
  C = eccPrimeSquared * Math.cos(LatRad) * Math.cos(LatRad);
  A = Math.cos(LatRad) * (LongRad - LongOriginRad);

  M = a * ((1 - eccSquared / 4 - 3 * eccSquared * eccSquared / 64 - 5 * eccSquared * eccSquared * eccSquared / 256) * LatRad - (3 * eccSquared / 8 + 3 * eccSquared * eccSquared / 32 + 45 * eccSquared * eccSquared * eccSquared / 1024) * Math.sin(2 * LatRad) + (15 * eccSquared * eccSquared / 256 + 45 * eccSquared * eccSquared * eccSquared / 1024) * Math.sin(4 * LatRad) - (35 * eccSquared * eccSquared * eccSquared / 3072) * Math.sin(6 * LatRad));

  var UTMEasting = (k0 * N * (A + (1 - T + C) * A * A * A / 6.0 + (5 - 18 * T + T * T + 72 * C - 58 * eccPrimeSquared) * A * A * A * A * A / 120.0) + 500000.0);

  var UTMNorthing = (k0 * (M + N * Math.tan(LatRad) * (A * A / 2 + (5 - T + 9 * C + 4 * C * C) * A * A * A * A / 24.0 + (61 - 58 * T + T * T + 600 * C - 330 * eccPrimeSquared) * A * A * A * A * A * A / 720.0)));
  if (Lat < 0.0) {
    UTMNorthing += 10000000.0; //10000000 meter offset for
    // southern hemisphere
  }

  return {
    northing: Math.round(UTMNorthing),
    easting: Math.round(UTMEasting),
    zoneNumber: ZoneNumber,
    zoneLetter: getLetterDesignator(Lat)
  };
}

/**
 * Converts UTM coords to lat/long, using the WGS84 ellipsoid. This is a convenience
 * class where the Zone can be specified as a single string eg."60N" which
 * is then broken down into the ZoneNumber and ZoneLetter.
 *
 * @private
 * @param {object} utm An object literal with northing, easting, zoneNumber
 *     and zoneLetter properties. If an optional accuracy property is
 *     provided (in meters), a bounding box will be returned instead of
 *     latitude and longitude.
 * @return {object} An object literal containing either lat and lon values
 *     (if no accuracy was provided), or top, right, bottom and left values
 *     for the bounding box calculated according to the provided accuracy.
 *     Returns null if the conversion failed.
 */
function UTMtoLL(utm) {

  var UTMNorthing = utm.northing;
  var UTMEasting = utm.easting;
  var zoneLetter = utm.zoneLetter;
  var zoneNumber = utm.zoneNumber;
  // check the ZoneNummber is valid
  if (zoneNumber < 0 || zoneNumber > 60) {
    return null;
  }

  var k0 = 0.9996;
  var a = 6378137.0; //ellip.radius;
  var eccSquared = 0.00669438; //ellip.eccsq;
  var eccPrimeSquared;
  var e1 = (1 - Math.sqrt(1 - eccSquared)) / (1 + Math.sqrt(1 - eccSquared));
  var N1, T1, C1, R1, D, M;
  var LongOrigin;
  var mu, phi1Rad;

  // remove 500,000 meter offset for longitude
  var x = UTMEasting - 500000.0;
  var y = UTMNorthing;

  // We must know somehow if we are in the Northern or Southern
  // hemisphere, this is the only time we use the letter So even
  // if the Zone letter isn't exactly correct it should indicate
  // the hemisphere correctly
  if (zoneLetter < 'N') {
    y -= 10000000.0; // remove 10,000,000 meter offset used
    // for southern hemisphere
  }

  // There are 60 zones with zone 1 being at West -180 to -174
  LongOrigin = (zoneNumber - 1) * 6 - 180 + 3; // +3 puts origin
  // in middle of
  // zone

  eccPrimeSquared = (eccSquared) / (1 - eccSquared);

  M = y / k0;
  mu = M / (a * (1 - eccSquared / 4 - 3 * eccSquared * eccSquared / 64 - 5 * eccSquared * eccSquared * eccSquared / 256));

  phi1Rad = mu + (3 * e1 / 2 - 27 * e1 * e1 * e1 / 32) * Math.sin(2 * mu) + (21 * e1 * e1 / 16 - 55 * e1 * e1 * e1 * e1 / 32) * Math.sin(4 * mu) + (151 * e1 * e1 * e1 / 96) * Math.sin(6 * mu);
  // double phi1 = ProjMath.radToDeg(phi1Rad);

  N1 = a / Math.sqrt(1 - eccSquared * Math.sin(phi1Rad) * Math.sin(phi1Rad));
  T1 = Math.tan(phi1Rad) * Math.tan(phi1Rad);
  C1 = eccPrimeSquared * Math.cos(phi1Rad) * Math.cos(phi1Rad);
  R1 = a * (1 - eccSquared) / Math.pow(1 - eccSquared * Math.sin(phi1Rad) * Math.sin(phi1Rad), 1.5);
  D = x / (N1 * k0);

  var lat = phi1Rad - (N1 * Math.tan(phi1Rad) / R1) * (D * D / 2 - (5 + 3 * T1 + 10 * C1 - 4 * C1 * C1 - 9 * eccPrimeSquared) * D * D * D * D / 24 + (61 + 90 * T1 + 298 * C1 + 45 * T1 * T1 - 252 * eccPrimeSquared - 3 * C1 * C1) * D * D * D * D * D * D / 720);
  lat = radToDeg(lat);

  var lon = (D - (1 + 2 * T1 + C1) * D * D * D / 6 + (5 - 2 * C1 + 28 * T1 - 3 * C1 * C1 + 8 * eccPrimeSquared + 24 * T1 * T1) * D * D * D * D * D / 120) / Math.cos(phi1Rad);
  lon = LongOrigin + radToDeg(lon);

  var result;
  if (utm.accuracy) {
    var topRight = UTMtoLL({
      northing: utm.northing + utm.accuracy,
      easting: utm.easting + utm.accuracy,
      zoneLetter: utm.zoneLetter,
      zoneNumber: utm.zoneNumber
    });
    result = {
      top: topRight.lat,
      right: topRight.lon,
      bottom: lat,
      left: lon
    };
  }
  else {
    result = {
      lat: lat,
      lon: lon
    };
  }
  return result;
}

/**
 * Calculates the MGRS letter designator for the given latitude.
 *
 * @private
 * @param {number} lat The latitude in WGS84 to get the letter designator
 *     for.
 * @return {char} The letter designator.
 */
function getLetterDesignator(lat) {
  //This is here as an error flag to show that the Latitude is
  //outside MGRS limits
  var LetterDesignator = 'Z';

  if ((84 >= lat) && (lat >= 72)) {
    LetterDesignator = 'X';
  }
  else if ((72 > lat) && (lat >= 64)) {
    LetterDesignator = 'W';
  }
  else if ((64 > lat) && (lat >= 56)) {
    LetterDesignator = 'V';
  }
  else if ((56 > lat) && (lat >= 48)) {
    LetterDesignator = 'U';
  }
  else if ((48 > lat) && (lat >= 40)) {
    LetterDesignator = 'T';
  }
  else if ((40 > lat) && (lat >= 32)) {
    LetterDesignator = 'S';
  }
  else if ((32 > lat) && (lat >= 24)) {
    LetterDesignator = 'R';
  }
  else if ((24 > lat) && (lat >= 16)) {
    LetterDesignator = 'Q';
  }
  else if ((16 > lat) && (lat >= 8)) {
    LetterDesignator = 'P';
  }
  else if ((8 > lat) && (lat >= 0)) {
    LetterDesignator = 'N';
  }
  else if ((0 > lat) && (lat >= -8)) {
    LetterDesignator = 'M';
  }
  else if ((-8 > lat) && (lat >= -16)) {
    LetterDesignator = 'L';
  }
  else if ((-16 > lat) && (lat >= -24)) {
    LetterDesignator = 'K';
  }
  else if ((-24 > lat) && (lat >= -32)) {
    LetterDesignator = 'J';
  }
  else if ((-32 > lat) && (lat >= -40)) {
    LetterDesignator = 'H';
  }
  else if ((-40 > lat) && (lat >= -48)) {
    LetterDesignator = 'G';
  }
  else if ((-48 > lat) && (lat >= -56)) {
    LetterDesignator = 'F';
  }
  else if ((-56 > lat) && (lat >= -64)) {
    LetterDesignator = 'E';
  }
  else if ((-64 > lat) && (lat >= -72)) {
    LetterDesignator = 'D';
  }
  else if ((-72 > lat) && (lat >= -80)) {
    LetterDesignator = 'C';
  }
  return LetterDesignator;
}

/**
 * Encodes a UTM location as MGRS string.
 *
 * @private
 * @param {object} utm An object literal with easting, northing,
 *     zoneLetter, zoneNumber
 * @param {number} accuracy Accuracy in digits (1-5).
 * @return {string} MGRS string for the given UTM location.
 */
function encode(utm, accuracy) {
  // prepend with leading zeroes
  var seasting = "00000" + utm.easting,
    snorthing = "00000" + utm.northing;

  return utm.zoneNumber + utm.zoneLetter + get100kID(utm.easting, utm.northing, utm.zoneNumber) + seasting.substr(seasting.length - 5, accuracy) + snorthing.substr(snorthing.length - 5, accuracy);
}

/**
 * Get the two letter 100k designator for a given UTM easting,
 * northing and zone number value.
 *
 * @private
 * @param {number} easting
 * @param {number} northing
 * @param {number} zoneNumber
 * @return the two letter 100k designator for the given UTM location.
 */
function get100kID(easting, northing, zoneNumber) {
  var setParm = get100kSetForZone(zoneNumber);
  var setColumn = Math.floor(easting / 100000);
  var setRow = Math.floor(northing / 100000) % 20;
  return getLetter100kID(setColumn, setRow, setParm);
}

/**
 * Given a UTM zone number, figure out the MGRS 100K set it is in.
 *
 * @private
 * @param {number} i An UTM zone number.
 * @return {number} the 100k set the UTM zone is in.
 */
function get100kSetForZone(i) {
  var setParm = i % NUM_100K_SETS;
  if (setParm === 0) {
    setParm = NUM_100K_SETS;
  }

  return setParm;
}

/**
 * Get the two-letter MGRS 100k designator given information
 * translated from the UTM northing, easting and zone number.
 *
 * @private
 * @param {number} column the column index as it relates to the MGRS
 *        100k set spreadsheet, created from the UTM easting.
 *        Values are 1-8.
 * @param {number} row the row index as it relates to the MGRS 100k set
 *        spreadsheet, created from the UTM northing value. Values
 *        are from 0-19.
 * @param {number} parm the set block, as it relates to the MGRS 100k set
 *        spreadsheet, created from the UTM zone. Values are from
 *        1-60.
 * @return two letter MGRS 100k code.
 */
function getLetter100kID(column, row, parm) {
  // colOrigin and rowOrigin are the letters at the origin of the set
  var index = parm - 1;
  var colOrigin = SET_ORIGIN_COLUMN_LETTERS.charCodeAt(index);
  var rowOrigin = SET_ORIGIN_ROW_LETTERS.charCodeAt(index);

  // colInt and rowInt are the letters to build to return
  var colInt = colOrigin + column - 1;
  var rowInt = rowOrigin + row;
  var rollover = false;

  if (colInt > Z) {
    colInt = colInt - Z + A - 1;
    rollover = true;
  }

  if (colInt === I || (colOrigin < I && colInt > I) || ((colInt > I || colOrigin < I) && rollover)) {
    colInt++;
  }

  if (colInt === O || (colOrigin < O && colInt > O) || ((colInt > O || colOrigin < O) && rollover)) {
    colInt++;

    if (colInt === I) {
      colInt++;
    }
  }

  if (colInt > Z) {
    colInt = colInt - Z + A - 1;
  }

  if (rowInt > V) {
    rowInt = rowInt - V + A - 1;
    rollover = true;
  }
  else {
    rollover = false;
  }

  if (((rowInt === I) || ((rowOrigin < I) && (rowInt > I))) || (((rowInt > I) || (rowOrigin < I)) && rollover)) {
    rowInt++;
  }

  if (((rowInt === O) || ((rowOrigin < O) && (rowInt > O))) || (((rowInt > O) || (rowOrigin < O)) && rollover)) {
    rowInt++;

    if (rowInt === I) {
      rowInt++;
    }
  }

  if (rowInt > V) {
    rowInt = rowInt - V + A - 1;
  }

  var twoLetter = String.fromCharCode(colInt) + String.fromCharCode(rowInt);
  return twoLetter;
}

/**
 * Decode the UTM parameters from a MGRS string.
 *
 * @private
 * @param {string} mgrsString an UPPERCASE coordinate string is expected.
 * @return {object} An object literal with easting, northing, zoneLetter,
 *     zoneNumber and accuracy (in meters) properties.
 */
function decode(mgrsString) {

  if (mgrsString && mgrsString.length === 0) {
    throw ("MGRSPoint coverting from nothing");
  }

  var length = mgrsString.length;

  var hunK = null;
  var sb = "";
  var testChar;
  var i = 0;

  // get Zone number
  while (!(/[A-Z]/).test(testChar = mgrsString.charAt(i))) {
    if (i >= 2) {
      throw ("MGRSPoint bad conversion from: " + mgrsString);
    }
    sb += testChar;
    i++;
  }

  var zoneNumber = parseInt(sb, 10);

  if (i === 0 || i + 3 > length) {
    // A good MGRS string has to be 4-5 digits long,
    // ##AAA/#AAA at least.
    throw ("MGRSPoint bad conversion from: " + mgrsString);
  }

  var zoneLetter = mgrsString.charAt(i++);

  // Should we check the zone letter here? Why not.
  if (zoneLetter <= 'A' || zoneLetter === 'B' || zoneLetter === 'Y' || zoneLetter >= 'Z' || zoneLetter === 'I' || zoneLetter === 'O') {
    throw ("MGRSPoint zone letter " + zoneLetter + " not handled: " + mgrsString);
  }

  hunK = mgrsString.substring(i, i += 2);

  var set = get100kSetForZone(zoneNumber);

  var east100k = getEastingFromChar(hunK.charAt(0), set);
  var north100k = getNorthingFromChar(hunK.charAt(1), set);

  // We have a bug where the northing may be 2000000 too low.
  // How
  // do we know when to roll over?

  while (north100k < getMinNorthing(zoneLetter)) {
    north100k += 2000000;
  }

  // calculate the char index for easting/northing separator
  var remainder = length - i;

  if (remainder % 2 !== 0) {
    throw ("MGRSPoint has to have an even number \nof digits after the zone letter and two 100km letters - front \nhalf for easting meters, second half for \nnorthing meters" + mgrsString);
  }

  var sep = remainder / 2;

  var sepEasting = 0.0;
  var sepNorthing = 0.0;
  var accuracyBonus, sepEastingString, sepNorthingString, easting, northing;
  if (sep > 0) {
    accuracyBonus = 100000.0 / Math.pow(10, sep);
    sepEastingString = mgrsString.substring(i, i + sep);
    sepEasting = parseFloat(sepEastingString) * accuracyBonus;
    sepNorthingString = mgrsString.substring(i + sep);
    sepNorthing = parseFloat(sepNorthingString) * accuracyBonus;
  }

  easting = sepEasting + east100k;
  northing = sepNorthing + north100k;

  return {
    easting: easting,
    northing: northing,
    zoneLetter: zoneLetter,
    zoneNumber: zoneNumber,
    accuracy: accuracyBonus
  };
}

/**
 * Given the first letter from a two-letter MGRS 100k zone, and given the
 * MGRS table set for the zone number, figure out the easting value that
 * should be added to the other, secondary easting value.
 *
 * @private
 * @param {char} e The first letter from a two-letter MGRS 100´k zone.
 * @param {number} set The MGRS table set for the zone number.
 * @return {number} The easting value for the given letter and set.
 */
function getEastingFromChar(e, set) {
  // colOrigin is the letter at the origin of the set for the
  // column
  var curCol = SET_ORIGIN_COLUMN_LETTERS.charCodeAt(set - 1);
  var eastingValue = 100000.0;
  var rewindMarker = false;

  while (curCol !== e.charCodeAt(0)) {
    curCol++;
    if (curCol === I) {
      curCol++;
    }
    if (curCol === O) {
      curCol++;
    }
    if (curCol > Z) {
      if (rewindMarker) {
        throw ("Bad character: " + e);
      }
      curCol = A;
      rewindMarker = true;
    }
    eastingValue += 100000.0;
  }

  return eastingValue;
}

/**
 * Given the second letter from a two-letter MGRS 100k zone, and given the
 * MGRS table set for the zone number, figure out the northing value that
 * should be added to the other, secondary northing value. You have to
 * remember that Northings are determined from the equator, and the vertical
 * cycle of letters mean a 2000000 additional northing meters. This happens
 * approx. every 18 degrees of latitude. This method does *NOT* count any
 * additional northings. You have to figure out how many 2000000 meters need
 * to be added for the zone letter of the MGRS coordinate.
 *
 * @private
 * @param {char} n Second letter of the MGRS 100k zone
 * @param {number} set The MGRS table set number, which is dependent on the
 *     UTM zone number.
 * @return {number} The northing value for the given letter and set.
 */
function getNorthingFromChar(n, set) {

  if (n > 'V') {
    throw ("MGRSPoint given invalid Northing " + n);
  }

  // rowOrigin is the letter at the origin of the set for the
  // column
  var curRow = SET_ORIGIN_ROW_LETTERS.charCodeAt(set - 1);
  var northingValue = 0.0;
  var rewindMarker = false;

  while (curRow !== n.charCodeAt(0)) {
    curRow++;
    if (curRow === I) {
      curRow++;
    }
    if (curRow === O) {
      curRow++;
    }
    // fixing a bug making whole application hang in this loop
    // when 'n' is a wrong character
    if (curRow > V) {
      if (rewindMarker) { // making sure that this loop ends
        throw ("Bad character: " + n);
      }
      curRow = A;
      rewindMarker = true;
    }
    northingValue += 100000.0;
  }

  return northingValue;
}

/**
 * The function getMinNorthing returns the minimum northing value of a MGRS
 * zone.
 *
 * Ported from Geotrans' c Lattitude_Band_Value structure table.
 *
 * @private
 * @param {char} zoneLetter The MGRS zone to get the min northing for.
 * @return {number}
 */
function getMinNorthing(zoneLetter) {
  var northing;
  switch (zoneLetter) {
  case 'C':
    northing = 1100000.0;
    break;
  case 'D':
    northing = 2000000.0;
    break;
  case 'E':
    northing = 2800000.0;
    break;
  case 'F':
    northing = 3700000.0;
    break;
  case 'G':
    northing = 4600000.0;
    break;
  case 'H':
    northing = 5500000.0;
    break;
  case 'J':
    northing = 6400000.0;
    break;
  case 'K':
    northing = 7300000.0;
    break;
  case 'L':
    northing = 8200000.0;
    break;
  case 'M':
    northing = 9100000.0;
    break;
  case 'N':
    northing = 0.0;
    break;
  case 'P':
    northing = 800000.0;
    break;
  case 'Q':
    northing = 1700000.0;
    break;
  case 'R':
    northing = 2600000.0;
    break;
  case 'S':
    northing = 3500000.0;
    break;
  case 'T':
    northing = 4400000.0;
    break;
  case 'U':
    northing = 5300000.0;
    break;
  case 'V':
    northing = 6200000.0;
    break;
  case 'W':
    northing = 7000000.0;
    break;
  case 'X':
    northing = 7900000.0;
    break;
  default:
    northing = -1.0;
  }
  if (northing >= 0.0) {
    return northing;
  }
  else {
    throw ("Invalid zone letter: " + zoneLetter);
  }

}


/***/ }),

/***/ "./node_modules/parsedbf/decoder-browser.js":
/*!**************************************************!*\
  !*** ./node_modules/parsedbf/decoder-browser.js ***!
  \**************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

__webpack_require__(/*! text-encoding-polyfill */ "./node_modules/text-encoding-polyfill/index.js");
var StringDecoder = (__webpack_require__(/*! string_decoder */ "./node_modules/string_decoder/lib/string_decoder.js").StringDecoder);
function defaultDecoder(data) {
  var decoder = new StringDecoder();
  var out = decoder.write(data) + decoder.end();
  return out.replace(/\0/g, '').trim();
}
module.exports = createDecoder;
var regex = /^(?:ANSI\s)?(\d+)$/m;
function createDecoder(encoding, second) {
  if (!encoding) {
    return defaultDecoder;
  }
  try {
    new TextDecoder(encoding.trim());
  } catch(e) {
    var match = regex.exec(encoding);
    if (match && !second) {
      return createDecoder('windows-' + match[1], true);
    } else {
      return defaultDecoder;
    }
  }
  return browserDecoder;
  function browserDecoder(buffer) {
    var decoder = new TextDecoder(encoding);
    var out = decoder.decode(buffer, {
      stream: true
    }) + decoder.decode();
    return out.replace(/\0/g, '').trim();
  }
}


/***/ }),

/***/ "./node_modules/parsedbf/index.js":
/*!****************************************!*\
  !*** ./node_modules/parsedbf/index.js ***!
  \****************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

var createDecoder = __webpack_require__(/*! ./decoder */ "./node_modules/parsedbf/decoder-browser.js");
function dbfHeader(data) {
  var out = {};
  out.lastUpdated = new Date(data.readUInt8(1) + 1900, data.readUInt8(2), data.readUInt8(3));
  out.records = data.readUInt32LE(4);
  out.headerLen = data.readUInt16LE(8);
  out.recLen = data.readUInt16LE(10);
  return out;
}

function dbfRowHeader(data, headerLen, decoder) {
  var out = [];
  var offset = 32;
  while (offset < headerLen) {
    out.push({
      name: decoder(data.slice(offset, offset + 11)),
      dataType: String.fromCharCode(data.readUInt8(offset + 11)),
      len: data.readUInt8(offset + 16),
      decimal: data.readUInt8(offset + 17)
    });
    if (data.readUInt8(offset + 32) === 13) {
      break;
    } else {
      offset += 32;
    }
  }
  return out;
}

function rowFuncs(buffer, offset, len, type, decoder) {
  var data = buffer.slice(offset, offset + len);
  var textData = decoder(data);
  switch (type) {
    case 'N':
    case 'F':
    case 'O':
      return parseFloat(textData, 10);
    case 'D':
      return new Date(textData.slice(0, 4), parseInt(textData.slice(4, 6), 10) - 1, textData.slice(6, 8));
    case 'L':
      return textData.toLowerCase() === 'y' || textData.toLowerCase() === 't';
    default:
      return textData;
  }
}

function parseRow(buffer, offset, rowHeaders, decoder) {
  var out = {};
  var i = 0;
  var len = rowHeaders.length;
  var field;
  var header;
  while (i < len) {
    header = rowHeaders[i];
    field = rowFuncs(buffer, offset, header.len, header.dataType, decoder);
    offset += header.len;
    if (typeof field !== 'undefined') {
      out[header.name] = field;
    }
    i++;
  }
  return out;
}

module.exports = function(buffer, encoding) {
  var decoder = createDecoder(encoding);
  var header = dbfHeader(buffer);
  var rowHeaders = dbfRowHeader(buffer, header.headerLen - 1, decoder);

  var offset = ((rowHeaders.length + 1) << 5) + 2;
  var recLen = header.recLen;
  var records = header.records;
  var out = [];
  while (records) {
    out.push(parseRow(buffer, offset, rowHeaders, decoder));
    offset += recLen;
    records--;
  }
  return out;
};


/***/ }),

/***/ "./node_modules/pbf/index.js":
/*!***********************************!*\
  !*** ./node_modules/pbf/index.js ***!
  \***********************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";


module.exports = Pbf;

var ieee754 = __webpack_require__(/*! ieee754 */ "./node_modules/ieee754/index.js");

function Pbf(buf) {
    this.buf = ArrayBuffer.isView && ArrayBuffer.isView(buf) ? buf : new Uint8Array(buf || 0);
    this.pos = 0;
    this.type = 0;
    this.length = this.buf.length;
}

Pbf.Varint  = 0; // varint: int32, int64, uint32, uint64, sint32, sint64, bool, enum
Pbf.Fixed64 = 1; // 64-bit: double, fixed64, sfixed64
Pbf.Bytes   = 2; // length-delimited: string, bytes, embedded messages, packed repeated fields
Pbf.Fixed32 = 5; // 32-bit: float, fixed32, sfixed32

var SHIFT_LEFT_32 = (1 << 16) * (1 << 16),
    SHIFT_RIGHT_32 = 1 / SHIFT_LEFT_32;

// Threshold chosen based on both benchmarking and knowledge about browser string
// data structures (which currently switch structure types at 12 bytes or more)
var TEXT_DECODER_MIN_LENGTH = 12;
var utf8TextDecoder = typeof TextDecoder === 'undefined' ? null : new TextDecoder('utf8');

Pbf.prototype = {

    destroy: function() {
        this.buf = null;
    },

    // === READING =================================================================

    readFields: function(readField, result, end) {
        end = end || this.length;

        while (this.pos < end) {
            var val = this.readVarint(),
                tag = val >> 3,
                startPos = this.pos;

            this.type = val & 0x7;
            readField(tag, result, this);

            if (this.pos === startPos) this.skip(val);
        }
        return result;
    },

    readMessage: function(readField, result) {
        return this.readFields(readField, result, this.readVarint() + this.pos);
    },

    readFixed32: function() {
        var val = readUInt32(this.buf, this.pos);
        this.pos += 4;
        return val;
    },

    readSFixed32: function() {
        var val = readInt32(this.buf, this.pos);
        this.pos += 4;
        return val;
    },

    // 64-bit int handling is based on github.com/dpw/node-buffer-more-ints (MIT-licensed)

    readFixed64: function() {
        var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;
        this.pos += 8;
        return val;
    },

    readSFixed64: function() {
        var val = readUInt32(this.buf, this.pos) + readInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;
        this.pos += 8;
        return val;
    },

    readFloat: function() {
        var val = ieee754.read(this.buf, this.pos, true, 23, 4);
        this.pos += 4;
        return val;
    },

    readDouble: function() {
        var val = ieee754.read(this.buf, this.pos, true, 52, 8);
        this.pos += 8;
        return val;
    },

    readVarint: function(isSigned) {
        var buf = this.buf,
            val, b;

        b = buf[this.pos++]; val  =  b & 0x7f;        if (b < 0x80) return val;
        b = buf[this.pos++]; val |= (b & 0x7f) << 7;  if (b < 0x80) return val;
        b = buf[this.pos++]; val |= (b & 0x7f) << 14; if (b < 0x80) return val;
        b = buf[this.pos++]; val |= (b & 0x7f) << 21; if (b < 0x80) return val;
        b = buf[this.pos];   val |= (b & 0x0f) << 28;

        return readVarintRemainder(val, isSigned, this);
    },

    readVarint64: function() { // for compatibility with v2.0.1
        return this.readVarint(true);
    },

    readSVarint: function() {
        var num = this.readVarint();
        return num % 2 === 1 ? (num + 1) / -2 : num / 2; // zigzag encoding
    },

    readBoolean: function() {
        return Boolean(this.readVarint());
    },

    readString: function() {
        var end = this.readVarint() + this.pos;
        var pos = this.pos;
        this.pos = end;

        if (end - pos >= TEXT_DECODER_MIN_LENGTH && utf8TextDecoder) {
            // longer strings are fast with the built-in browser TextDecoder API
            return readUtf8TextDecoder(this.buf, pos, end);
        }
        // short strings are fast with our custom implementation
        return readUtf8(this.buf, pos, end);
    },

    readBytes: function() {
        var end = this.readVarint() + this.pos,
            buffer = this.buf.subarray(this.pos, end);
        this.pos = end;
        return buffer;
    },

    // verbose for performance reasons; doesn't affect gzipped size

    readPackedVarint: function(arr, isSigned) {
        if (this.type !== Pbf.Bytes) return arr.push(this.readVarint(isSigned));
        var end = readPackedEnd(this);
        arr = arr || [];
        while (this.pos < end) arr.push(this.readVarint(isSigned));
        return arr;
    },
    readPackedSVarint: function(arr) {
        if (this.type !== Pbf.Bytes) return arr.push(this.readSVarint());
        var end = readPackedEnd(this);
        arr = arr || [];
        while (this.pos < end) arr.push(this.readSVarint());
        return arr;
    },
    readPackedBoolean: function(arr) {
        if (this.type !== Pbf.Bytes) return arr.push(this.readBoolean());
        var end = readPackedEnd(this);
        arr = arr || [];
        while (this.pos < end) arr.push(this.readBoolean());
        return arr;
    },
    readPackedFloat: function(arr) {
        if (this.type !== Pbf.Bytes) return arr.push(this.readFloat());
        var end = readPackedEnd(this);
        arr = arr || [];
        while (this.pos < end) arr.push(this.readFloat());
        return arr;
    },
    readPackedDouble: function(arr) {
        if (this.type !== Pbf.Bytes) return arr.push(this.readDouble());
        var end = readPackedEnd(this);
        arr = arr || [];
        while (this.pos < end) arr.push(this.readDouble());
        return arr;
    },
    readPackedFixed32: function(arr) {
        if (this.type !== Pbf.Bytes) return arr.push(this.readFixed32());
        var end = readPackedEnd(this);
        arr = arr || [];
        while (this.pos < end) arr.push(this.readFixed32());
        return arr;
    },
    readPackedSFixed32: function(arr) {
        if (this.type !== Pbf.Bytes) return arr.push(this.readSFixed32());
        var end = readPackedEnd(this);
        arr = arr || [];
        while (this.pos < end) arr.push(this.readSFixed32());
        return arr;
    },
    readPackedFixed64: function(arr) {
        if (this.type !== Pbf.Bytes) return arr.push(this.readFixed64());
        var end = readPackedEnd(this);
        arr = arr || [];
        while (this.pos < end) arr.push(this.readFixed64());
        return arr;
    },
    readPackedSFixed64: function(arr) {
        if (this.type !== Pbf.Bytes) return arr.push(this.readSFixed64());
        var end = readPackedEnd(this);
        arr = arr || [];
        while (this.pos < end) arr.push(this.readSFixed64());
        return arr;
    },

    skip: function(val) {
        var type = val & 0x7;
        if (type === Pbf.Varint) while (this.buf[this.pos++] > 0x7f) {}
        else if (type === Pbf.Bytes) this.pos = this.readVarint() + this.pos;
        else if (type === Pbf.Fixed32) this.pos += 4;
        else if (type === Pbf.Fixed64) this.pos += 8;
        else throw new Error('Unimplemented type: ' + type);
    },

    // === WRITING =================================================================

    writeTag: function(tag, type) {
        this.writeVarint((tag << 3) | type);
    },

    realloc: function(min) {
        var length = this.length || 16;

        while (length < this.pos + min) length *= 2;

        if (length !== this.length) {
            var buf = new Uint8Array(length);
            buf.set(this.buf);
            this.buf = buf;
            this.length = length;
        }
    },

    finish: function() {
        this.length = this.pos;
        this.pos = 0;
        return this.buf.subarray(0, this.length);
    },

    writeFixed32: function(val) {
        this.realloc(4);
        writeInt32(this.buf, val, this.pos);
        this.pos += 4;
    },

    writeSFixed32: function(val) {
        this.realloc(4);
        writeInt32(this.buf, val, this.pos);
        this.pos += 4;
    },

    writeFixed64: function(val) {
        this.realloc(8);
        writeInt32(this.buf, val & -1, this.pos);
        writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);
        this.pos += 8;
    },

    writeSFixed64: function(val) {
        this.realloc(8);
        writeInt32(this.buf, val & -1, this.pos);
        writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);
        this.pos += 8;
    },

    writeVarint: function(val) {
        val = +val || 0;

        if (val > 0xfffffff || val < 0) {
            writeBigVarint(val, this);
            return;
        }

        this.realloc(4);

        this.buf[this.pos++] =           val & 0x7f  | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;
        this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;
        this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;
        this.buf[this.pos++] =   (val >>> 7) & 0x7f;
    },

    writeSVarint: function(val) {
        this.writeVarint(val < 0 ? -val * 2 - 1 : val * 2);
    },

    writeBoolean: function(val) {
        this.writeVarint(Boolean(val));
    },

    writeString: function(str) {
        str = String(str);
        this.realloc(str.length * 4);

        this.pos++; // reserve 1 byte for short string length

        var startPos = this.pos;
        // write the string directly to the buffer and see how much was written
        this.pos = writeUtf8(this.buf, str, this.pos);
        var len = this.pos - startPos;

        if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);

        // finally, write the message length in the reserved place and restore the position
        this.pos = startPos - 1;
        this.writeVarint(len);
        this.pos += len;
    },

    writeFloat: function(val) {
        this.realloc(4);
        ieee754.write(this.buf, val, this.pos, true, 23, 4);
        this.pos += 4;
    },

    writeDouble: function(val) {
        this.realloc(8);
        ieee754.write(this.buf, val, this.pos, true, 52, 8);
        this.pos += 8;
    },

    writeBytes: function(buffer) {
        var len = buffer.length;
        this.writeVarint(len);
        this.realloc(len);
        for (var i = 0; i < len; i++) this.buf[this.pos++] = buffer[i];
    },

    writeRawMessage: function(fn, obj) {
        this.pos++; // reserve 1 byte for short message length

        // write the message directly to the buffer and see how much was written
        var startPos = this.pos;
        fn(obj, this);
        var len = this.pos - startPos;

        if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);

        // finally, write the message length in the reserved place and restore the position
        this.pos = startPos - 1;
        this.writeVarint(len);
        this.pos += len;
    },

    writeMessage: function(tag, fn, obj) {
        this.writeTag(tag, Pbf.Bytes);
        this.writeRawMessage(fn, obj);
    },

    writePackedVarint:   function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedVarint, arr);   },
    writePackedSVarint:  function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedSVarint, arr);  },
    writePackedBoolean:  function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedBoolean, arr);  },
    writePackedFloat:    function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedFloat, arr);    },
    writePackedDouble:   function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedDouble, arr);   },
    writePackedFixed32:  function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedFixed32, arr);  },
    writePackedSFixed32: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedSFixed32, arr); },
    writePackedFixed64:  function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedFixed64, arr);  },
    writePackedSFixed64: function(tag, arr) { if (arr.length) this.writeMessage(tag, writePackedSFixed64, arr); },

    writeBytesField: function(tag, buffer) {
        this.writeTag(tag, Pbf.Bytes);
        this.writeBytes(buffer);
    },
    writeFixed32Field: function(tag, val) {
        this.writeTag(tag, Pbf.Fixed32);
        this.writeFixed32(val);
    },
    writeSFixed32Field: function(tag, val) {
        this.writeTag(tag, Pbf.Fixed32);
        this.writeSFixed32(val);
    },
    writeFixed64Field: function(tag, val) {
        this.writeTag(tag, Pbf.Fixed64);
        this.writeFixed64(val);
    },
    writeSFixed64Field: function(tag, val) {
        this.writeTag(tag, Pbf.Fixed64);
        this.writeSFixed64(val);
    },
    writeVarintField: function(tag, val) {
        this.writeTag(tag, Pbf.Varint);
        this.writeVarint(val);
    },
    writeSVarintField: function(tag, val) {
        this.writeTag(tag, Pbf.Varint);
        this.writeSVarint(val);
    },
    writeStringField: function(tag, str) {
        this.writeTag(tag, Pbf.Bytes);
        this.writeString(str);
    },
    writeFloatField: function(tag, val) {
        this.writeTag(tag, Pbf.Fixed32);
        this.writeFloat(val);
    },
    writeDoubleField: function(tag, val) {
        this.writeTag(tag, Pbf.Fixed64);
        this.writeDouble(val);
    },
    writeBooleanField: function(tag, val) {
        this.writeVarintField(tag, Boolean(val));
    }
};

function readVarintRemainder(l, s, p) {
    var buf = p.buf,
        h, b;

    b = buf[p.pos++]; h  = (b & 0x70) >> 4;  if (b < 0x80) return toNum(l, h, s);
    b = buf[p.pos++]; h |= (b & 0x7f) << 3;  if (b < 0x80) return toNum(l, h, s);
    b = buf[p.pos++]; h |= (b & 0x7f) << 10; if (b < 0x80) return toNum(l, h, s);
    b = buf[p.pos++]; h |= (b & 0x7f) << 17; if (b < 0x80) return toNum(l, h, s);
    b = buf[p.pos++]; h |= (b & 0x7f) << 24; if (b < 0x80) return toNum(l, h, s);
    b = buf[p.pos++]; h |= (b & 0x01) << 31; if (b < 0x80) return toNum(l, h, s);

    throw new Error('Expected varint not more than 10 bytes');
}

function readPackedEnd(pbf) {
    return pbf.type === Pbf.Bytes ?
        pbf.readVarint() + pbf.pos : pbf.pos + 1;
}

function toNum(low, high, isSigned) {
    if (isSigned) {
        return high * 0x100000000 + (low >>> 0);
    }

    return ((high >>> 0) * 0x100000000) + (low >>> 0);
}

function writeBigVarint(val, pbf) {
    var low, high;

    if (val >= 0) {
        low  = (val % 0x100000000) | 0;
        high = (val / 0x100000000) | 0;
    } else {
        low  = ~(-val % 0x100000000);
        high = ~(-val / 0x100000000);

        if (low ^ 0xffffffff) {
            low = (low + 1) | 0;
        } else {
            low = 0;
            high = (high + 1) | 0;
        }
    }

    if (val >= 0x10000000000000000 || val < -0x10000000000000000) {
        throw new Error('Given varint doesn\'t fit into 10 bytes');
    }

    pbf.realloc(10);

    writeBigVarintLow(low, high, pbf);
    writeBigVarintHigh(high, pbf);
}

function writeBigVarintLow(low, high, pbf) {
    pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;
    pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;
    pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;
    pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;
    pbf.buf[pbf.pos]   = low & 0x7f;
}

function writeBigVarintHigh(high, pbf) {
    var lsb = (high & 0x07) << 4;

    pbf.buf[pbf.pos++] |= lsb         | ((high >>>= 3) ? 0x80 : 0); if (!high) return;
    pbf.buf[pbf.pos++]  = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;
    pbf.buf[pbf.pos++]  = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;
    pbf.buf[pbf.pos++]  = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;
    pbf.buf[pbf.pos++]  = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;
    pbf.buf[pbf.pos++]  = high & 0x7f;
}

function makeRoomForExtraLength(startPos, len, pbf) {
    var extraLen =
        len <= 0x3fff ? 1 :
        len <= 0x1fffff ? 2 :
        len <= 0xfffffff ? 3 : Math.floor(Math.log(len) / (Math.LN2 * 7));

    // if 1 byte isn't enough for encoding message length, shift the data to the right
    pbf.realloc(extraLen);
    for (var i = pbf.pos - 1; i >= startPos; i--) pbf.buf[i + extraLen] = pbf.buf[i];
}

function writePackedVarint(arr, pbf)   { for (var i = 0; i < arr.length; i++) pbf.writeVarint(arr[i]);   }
function writePackedSVarint(arr, pbf)  { for (var i = 0; i < arr.length; i++) pbf.writeSVarint(arr[i]);  }
function writePackedFloat(arr, pbf)    { for (var i = 0; i < arr.length; i++) pbf.writeFloat(arr[i]);    }
function writePackedDouble(arr, pbf)   { for (var i = 0; i < arr.length; i++) pbf.writeDouble(arr[i]);   }
function writePackedBoolean(arr, pbf)  { for (var i = 0; i < arr.length; i++) pbf.writeBoolean(arr[i]);  }
function writePackedFixed32(arr, pbf)  { for (var i = 0; i < arr.length; i++) pbf.writeFixed32(arr[i]);  }
function writePackedSFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed32(arr[i]); }
function writePackedFixed64(arr, pbf)  { for (var i = 0; i < arr.length; i++) pbf.writeFixed64(arr[i]);  }
function writePackedSFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed64(arr[i]); }

// Buffer code below from https://github.com/feross/buffer, MIT-licensed

function readUInt32(buf, pos) {
    return ((buf[pos]) |
        (buf[pos + 1] << 8) |
        (buf[pos + 2] << 16)) +
        (buf[pos + 3] * 0x1000000);
}

function writeInt32(buf, val, pos) {
    buf[pos] = val;
    buf[pos + 1] = (val >>> 8);
    buf[pos + 2] = (val >>> 16);
    buf[pos + 3] = (val >>> 24);
}

function readInt32(buf, pos) {
    return ((buf[pos]) |
        (buf[pos + 1] << 8) |
        (buf[pos + 2] << 16)) +
        (buf[pos + 3] << 24);
}

function readUtf8(buf, pos, end) {
    var str = '';
    var i = pos;

    while (i < end) {
        var b0 = buf[i];
        var c = null; // codepoint
        var bytesPerSequence =
            b0 > 0xEF ? 4 :
            b0 > 0xDF ? 3 :
            b0 > 0xBF ? 2 : 1;

        if (i + bytesPerSequence > end) break;

        var b1, b2, b3;

        if (bytesPerSequence === 1) {
            if (b0 < 0x80) {
                c = b0;
            }
        } else if (bytesPerSequence === 2) {
            b1 = buf[i + 1];
            if ((b1 & 0xC0) === 0x80) {
                c = (b0 & 0x1F) << 0x6 | (b1 & 0x3F);
                if (c <= 0x7F) {
                    c = null;
                }
            }
        } else if (bytesPerSequence === 3) {
            b1 = buf[i + 1];
            b2 = buf[i + 2];
            if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80) {
                c = (b0 & 0xF) << 0xC | (b1 & 0x3F) << 0x6 | (b2 & 0x3F);
                if (c <= 0x7FF || (c >= 0xD800 && c <= 0xDFFF)) {
                    c = null;
                }
            }
        } else if (bytesPerSequence === 4) {
            b1 = buf[i + 1];
            b2 = buf[i + 2];
            b3 = buf[i + 3];
            if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) {
                c = (b0 & 0xF) << 0x12 | (b1 & 0x3F) << 0xC | (b2 & 0x3F) << 0x6 | (b3 & 0x3F);
                if (c <= 0xFFFF || c >= 0x110000) {
                    c = null;
                }
            }
        }

        if (c === null) {
            c = 0xFFFD;
            bytesPerSequence = 1;

        } else if (c > 0xFFFF) {
            c -= 0x10000;
            str += String.fromCharCode(c >>> 10 & 0x3FF | 0xD800);
            c = 0xDC00 | c & 0x3FF;
        }

        str += String.fromCharCode(c);
        i += bytesPerSequence;
    }

    return str;
}

function readUtf8TextDecoder(buf, pos, end) {
    return utf8TextDecoder.decode(buf.subarray(pos, end));
}

function writeUtf8(buf, str, pos) {
    for (var i = 0, c, lead; i < str.length; i++) {
        c = str.charCodeAt(i); // code point

        if (c > 0xD7FF && c < 0xE000) {
            if (lead) {
                if (c < 0xDC00) {
                    buf[pos++] = 0xEF;
                    buf[pos++] = 0xBF;
                    buf[pos++] = 0xBD;
                    lead = c;
                    continue;
                } else {
                    c = lead - 0xD800 << 10 | c - 0xDC00 | 0x10000;
                    lead = null;
                }
            } else {
                if (c > 0xDBFF || (i + 1 === str.length)) {
                    buf[pos++] = 0xEF;
                    buf[pos++] = 0xBF;
                    buf[pos++] = 0xBD;
                } else {
                    lead = c;
                }
                continue;
            }
        } else if (lead) {
            buf[pos++] = 0xEF;
            buf[pos++] = 0xBF;
            buf[pos++] = 0xBD;
            lead = null;
        }

        if (c < 0x80) {
            buf[pos++] = c;
        } else {
            if (c < 0x800) {
                buf[pos++] = c >> 0x6 | 0xC0;
            } else {
                if (c < 0x10000) {
                    buf[pos++] = c >> 0xC | 0xE0;
                } else {
                    buf[pos++] = c >> 0x12 | 0xF0;
                    buf[pos++] = c >> 0xC & 0x3F | 0x80;
                }
                buf[pos++] = c >> 0x6 & 0x3F | 0x80;
            }
            buf[pos++] = c & 0x3F | 0x80;
        }
    }
    return pos;
}


/***/ }),

/***/ "./node_modules/proj4/lib/Point.js":
/*!*****************************************!*\
  !*** ./node_modules/proj4/lib/Point.js ***!
  \*****************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var mgrs__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! mgrs */ "./node_modules/mgrs/mgrs.js");


function Point(x, y, z) {
  if (!(this instanceof Point)) {
    return new Point(x, y, z);
  }
  if (Array.isArray(x)) {
    this.x = x[0];
    this.y = x[1];
    this.z = x[2] || 0.0;
  } else if(typeof x === 'object') {
    this.x = x.x;
    this.y = x.y;
    this.z = x.z || 0.0;
  } else if (typeof x === 'string' && typeof y === 'undefined') {
    var coords = x.split(',');
    this.x = parseFloat(coords[0], 10);
    this.y = parseFloat(coords[1], 10);
    this.z = parseFloat(coords[2], 10) || 0.0;
  } else {
    this.x = x;
    this.y = y;
    this.z = z || 0.0;
  }
  console.warn('proj4.Point will be removed in version 3, use proj4.toPoint');
}

Point.fromMGRS = function(mgrsStr) {
  return new Point((0,mgrs__WEBPACK_IMPORTED_MODULE_0__.toPoint)(mgrsStr));
};
Point.prototype.toMGRS = function(accuracy) {
  return (0,mgrs__WEBPACK_IMPORTED_MODULE_0__.forward)([this.x, this.y], accuracy);
};
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (Point);


/***/ }),

/***/ "./node_modules/proj4/lib/Proj.js":
/*!****************************************!*\
  !*** ./node_modules/proj4/lib/Proj.js ***!
  \****************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _parseCode__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./parseCode */ "./node_modules/proj4/lib/parseCode.js");
/* harmony import */ var _extend__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./extend */ "./node_modules/proj4/lib/extend.js");
/* harmony import */ var _projections__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./projections */ "./node_modules/proj4/lib/projections.js");
/* harmony import */ var _deriveConstants__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./deriveConstants */ "./node_modules/proj4/lib/deriveConstants.js");
/* harmony import */ var _constants_Datum__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./constants/Datum */ "./node_modules/proj4/lib/constants/Datum.js");
/* harmony import */ var _datum__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./datum */ "./node_modules/proj4/lib/datum.js");
/* harmony import */ var _match__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./match */ "./node_modules/proj4/lib/match.js");
/* harmony import */ var _nadgrid__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./nadgrid */ "./node_modules/proj4/lib/nadgrid.js");









function Projection(srsCode,callback) {
  if (!(this instanceof Projection)) {
    return new Projection(srsCode);
  }
  callback = callback || function(error){
    if(error){
      throw error;
    }
  };
  var json = (0,_parseCode__WEBPACK_IMPORTED_MODULE_0__["default"])(srsCode);
  if(typeof json !== 'object'){
    callback(srsCode);
    return;
  }
  var ourProj = Projection.projections.get(json.projName);
  if(!ourProj){
    callback(srsCode);
    return;
  }
  if (json.datumCode && json.datumCode !== 'none') {
    var datumDef = (0,_match__WEBPACK_IMPORTED_MODULE_6__["default"])(_constants_Datum__WEBPACK_IMPORTED_MODULE_4__["default"], json.datumCode);
    if (datumDef) {
      json.datum_params = json.datum_params || (datumDef.towgs84 ? datumDef.towgs84.split(',') : null);
      json.ellps = datumDef.ellipse;
      json.datumName = datumDef.datumName ? datumDef.datumName : json.datumCode;
    }
  }
  json.k0 = json.k0 || 1.0;
  json.axis = json.axis || 'enu';
  json.ellps = json.ellps || 'wgs84';
  json.lat1 = json.lat1 || json.lat0; // Lambert_Conformal_Conic_1SP, for example, needs this

  var sphere_ = (0,_deriveConstants__WEBPACK_IMPORTED_MODULE_3__.sphere)(json.a, json.b, json.rf, json.ellps, json.sphere);
  var ecc = (0,_deriveConstants__WEBPACK_IMPORTED_MODULE_3__.eccentricity)(sphere_.a, sphere_.b, sphere_.rf, json.R_A);
  var nadgrids = (0,_nadgrid__WEBPACK_IMPORTED_MODULE_7__.getNadgrids)(json.nadgrids);
  var datumObj = json.datum || (0,_datum__WEBPACK_IMPORTED_MODULE_5__["default"])(json.datumCode, json.datum_params, sphere_.a, sphere_.b, ecc.es, ecc.ep2,
    nadgrids);

  (0,_extend__WEBPACK_IMPORTED_MODULE_1__["default"])(this, json); // transfer everything over from the projection because we don't know what we'll need
  (0,_extend__WEBPACK_IMPORTED_MODULE_1__["default"])(this, ourProj); // transfer all the methods from the projection

  // copy the 4 things over we calulated in deriveConstants.sphere
  this.a = sphere_.a;
  this.b = sphere_.b;
  this.rf = sphere_.rf;
  this.sphere = sphere_.sphere;

  // copy the 3 things we calculated in deriveConstants.eccentricity
  this.es = ecc.es;
  this.e = ecc.e;
  this.ep2 = ecc.ep2;

  // add in the datum object
  this.datum = datumObj;

  // init the projection
  this.init();

  // legecy callback from back in the day when it went to spatialreference.org
  callback(null, this);

}
Projection.projections = _projections__WEBPACK_IMPORTED_MODULE_2__["default"];
Projection.projections.start();
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (Projection);


/***/ }),

/***/ "./node_modules/proj4/lib/adjust_axis.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/adjust_axis.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(crs, denorm, point) {
  var xin = point.x,
    yin = point.y,
    zin = point.z || 0.0;
  var v, t, i;
  var out = {};
  for (i = 0; i < 3; i++) {
    if (denorm && i === 2 && point.z === undefined) {
      continue;
    }
    if (i === 0) {
      v = xin;
      if ("ew".indexOf(crs.axis[i]) !== -1) {
        t = 'x';
      } else {
        t = 'y';
      }

    }
    else if (i === 1) {
      v = yin;
      if ("ns".indexOf(crs.axis[i]) !== -1) {
        t = 'y';
      } else {
        t = 'x';
      }
    }
    else {
      v = zin;
      t = 'z';
    }
    switch (crs.axis[i]) {
    case 'e':
      out[t] = v;
      break;
    case 'w':
      out[t] = -v;
      break;
    case 'n':
      out[t] = v;
      break;
    case 's':
      out[t] = -v;
      break;
    case 'u':
      if (point[t] !== undefined) {
        out.z = v;
      }
      break;
    case 'd':
      if (point[t] !== undefined) {
        out.z = -v;
      }
      break;
    default:
      //console.log("ERROR: unknow axis ("+crs.axis[i]+") - check definition of "+crs.projName);
      return null;
    }
  }
  return out;
}


/***/ }),

/***/ "./node_modules/proj4/lib/checkSanity.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/checkSanity.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(point) {
  checkCoord(point.x);
  checkCoord(point.y);
}
function checkCoord(num) {
  if (typeof Number.isFinite === 'function') {
    if (Number.isFinite(num)) {
      return;
    }
    throw new TypeError('coordinates must be finite numbers');
  }
  if (typeof num !== 'number' || num !== num || !isFinite(num)) {
    throw new TypeError('coordinates must be finite numbers');
  }
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/adjust_lat.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/common/adjust_lat.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _sign__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./sign */ "./node_modules/proj4/lib/common/sign.js");



/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  return (Math.abs(x) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI) ? x : (x - ((0,_sign__WEBPACK_IMPORTED_MODULE_1__["default"])(x) * Math.PI));
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/adjust_lon.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/common/adjust_lon.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _sign__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./sign */ "./node_modules/proj4/lib/common/sign.js");




/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  return (Math.abs(x) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI) ? x : (x - ((0,_sign__WEBPACK_IMPORTED_MODULE_1__["default"])(x) * _constants_values__WEBPACK_IMPORTED_MODULE_0__.TWO_PI));
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/adjust_zone.js":
/*!******************************************************!*\
  !*** ./node_modules/proj4/lib/common/adjust_zone.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");


/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(zone, lon) {
  if (zone === undefined) {
    zone = Math.floor(((0,_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon) + Math.PI) * 30 / Math.PI) + 1;

    if (zone < 0) {
      return 0;
    } else if (zone > 60) {
      return 60;
    }
  }
  return zone;
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/asinhy.js":
/*!*************************************************!*\
  !*** ./node_modules/proj4/lib/common/asinhy.js ***!
  \*************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _hypot__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./hypot */ "./node_modules/proj4/lib/common/hypot.js");
/* harmony import */ var _log1py__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./log1py */ "./node_modules/proj4/lib/common/log1py.js");



/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  var y = Math.abs(x);
  y = (0,_log1py__WEBPACK_IMPORTED_MODULE_1__["default"])(y * (1 + y / ((0,_hypot__WEBPACK_IMPORTED_MODULE_0__["default"])(1, y) + 1)));

  return x < 0 ? -y : y;
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/asinz.js":
/*!************************************************!*\
  !*** ./node_modules/proj4/lib/common/asinz.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  if (Math.abs(x) > 1) {
    x = (x > 1) ? 1 : -1;
  }
  return Math.asin(x);
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/clens.js":
/*!************************************************!*\
  !*** ./node_modules/proj4/lib/common/clens.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(pp, arg_r) {
  var r = 2 * Math.cos(arg_r);
  var i = pp.length - 1;
  var hr1 = pp[i];
  var hr2 = 0;
  var hr;

  while (--i >= 0) {
    hr = -hr2 + r * hr1 + pp[i];
    hr2 = hr1;
    hr1 = hr;
  }

  return Math.sin(arg_r) * hr;
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/clens_cmplx.js":
/*!******************************************************!*\
  !*** ./node_modules/proj4/lib/common/clens_cmplx.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _sinh__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./sinh */ "./node_modules/proj4/lib/common/sinh.js");
/* harmony import */ var _cosh__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./cosh */ "./node_modules/proj4/lib/common/cosh.js");



/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(pp, arg_r, arg_i) {
  var sin_arg_r = Math.sin(arg_r);
  var cos_arg_r = Math.cos(arg_r);
  var sinh_arg_i = (0,_sinh__WEBPACK_IMPORTED_MODULE_0__["default"])(arg_i);
  var cosh_arg_i = (0,_cosh__WEBPACK_IMPORTED_MODULE_1__["default"])(arg_i);
  var r = 2 * cos_arg_r * cosh_arg_i;
  var i = -2 * sin_arg_r * sinh_arg_i;
  var j = pp.length - 1;
  var hr = pp[j];
  var hi1 = 0;
  var hr1 = 0;
  var hi = 0;
  var hr2;
  var hi2;

  while (--j >= 0) {
    hr2 = hr1;
    hi2 = hi1;
    hr1 = hr;
    hi1 = hi;
    hr = -hr2 + r * hr1 - i * hi1 + pp[j];
    hi = -hi2 + i * hr1 + r * hi1;
  }

  r = sin_arg_r * cosh_arg_i;
  i = cos_arg_r * sinh_arg_i;

  return [r * hr - i * hi, r * hi + i * hr];
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/cosh.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/cosh.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  var r = Math.exp(x);
  r = (r + 1 / r) / 2;
  return r;
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/e0fn.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/e0fn.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  return (1 - 0.25 * x * (1 + x / 16 * (3 + 1.25 * x)));
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/e1fn.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/e1fn.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  return (0.375 * x * (1 + 0.25 * x * (1 + 0.46875 * x)));
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/e2fn.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/e2fn.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  return (0.05859375 * x * x * (1 + 0.75 * x));
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/e3fn.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/e3fn.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  return (x * x * x * (35 / 3072));
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/gN.js":
/*!*********************************************!*\
  !*** ./node_modules/proj4/lib/common/gN.js ***!
  \*********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(a, e, sinphi) {
  var temp = e * sinphi;
  return a / Math.sqrt(1 - temp * temp);
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/gatg.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/gatg.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(pp, B) {
  var cos_2B = 2 * Math.cos(2 * B);
  var i = pp.length - 1;
  var h1 = pp[i];
  var h2 = 0;
  var h;

  while (--i >= 0) {
    h = -h2 + cos_2B * h1 + pp[i];
    h2 = h1;
    h1 = h;
  }

  return (B + h * Math.sin(2 * B));
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/hypot.js":
/*!************************************************!*\
  !*** ./node_modules/proj4/lib/common/hypot.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x, y) {
  x = Math.abs(x);
  y = Math.abs(y);
  var a = Math.max(x, y);
  var b = Math.min(x, y) / (a ? a : 1);

  return a * Math.sqrt(1 + Math.pow(b, 2));
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/imlfn.js":
/*!************************************************!*\
  !*** ./node_modules/proj4/lib/common/imlfn.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(ml, e0, e1, e2, e3) {
  var phi;
  var dphi;

  phi = ml / e0;
  for (var i = 0; i < 15; i++) {
    dphi = (ml - (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi))) / (e0 - 2 * e1 * Math.cos(2 * phi) + 4 * e2 * Math.cos(4 * phi) - 6 * e3 * Math.cos(6 * phi));
    phi += dphi;
    if (Math.abs(dphi) <= 0.0000000001) {
      return phi;
    }
  }

  //..reportError("IMLFN-CONV:Latitude failed to converge after 15 iterations");
  return NaN;
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/iqsfnz.js":
/*!*************************************************!*\
  !*** ./node_modules/proj4/lib/common/iqsfnz.js ***!
  \*************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");


/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(eccent, q) {
  var temp = 1 - (1 - eccent * eccent) / (2 * eccent) * Math.log((1 - eccent) / (1 + eccent));
  if (Math.abs(Math.abs(q) - temp) < 1.0E-6) {
    if (q < 0) {
      return (-1 * _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI);
    }
    else {
      return _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    }
  }
  //var phi = 0.5* q/(1-eccent*eccent);
  var phi = Math.asin(0.5 * q);
  var dphi;
  var sin_phi;
  var cos_phi;
  var con;
  for (var i = 0; i < 30; i++) {
    sin_phi = Math.sin(phi);
    cos_phi = Math.cos(phi);
    con = eccent * sin_phi;
    dphi = Math.pow(1 - con * con, 2) / (2 * cos_phi) * (q / (1 - eccent * eccent) - sin_phi / (1 - con * con) + 0.5 / eccent * Math.log((1 - con) / (1 + con)));
    phi += dphi;
    if (Math.abs(dphi) <= 0.0000000001) {
      return phi;
    }
  }

  //console.log("IQSFN-CONV:Latitude failed to converge after 30 iterations");
  return NaN;
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/log1py.js":
/*!*************************************************!*\
  !*** ./node_modules/proj4/lib/common/log1py.js ***!
  \*************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  var y = 1 + x;
  var z = y - 1;

  return z === 0 ? x : x * Math.log(y) / z;
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/mlfn.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/mlfn.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(e0, e1, e2, e3, phi) {
  return (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi));
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/msfnz.js":
/*!************************************************!*\
  !*** ./node_modules/proj4/lib/common/msfnz.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(eccent, sinphi, cosphi) {
  var con = eccent * sinphi;
  return cosphi / (Math.sqrt(1 - con * con));
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/phi2z.js":
/*!************************************************!*\
  !*** ./node_modules/proj4/lib/common/phi2z.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");


/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(eccent, ts) {
  var eccnth = 0.5 * eccent;
  var con, dphi;
  var phi = _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI - 2 * Math.atan(ts);
  for (var i = 0; i <= 15; i++) {
    con = eccent * Math.sin(phi);
    dphi = _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI - 2 * Math.atan(ts * (Math.pow(((1 - con) / (1 + con)), eccnth))) - phi;
    phi += dphi;
    if (Math.abs(dphi) <= 0.0000000001) {
      return phi;
    }
  }
  //console.log("phi2z has NoConvergence");
  return -9999;
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/pj_enfn.js":
/*!**************************************************!*\
  !*** ./node_modules/proj4/lib/common/pj_enfn.js ***!
  \**************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
var C00 = 1;
var C02 = 0.25;
var C04 = 0.046875;
var C06 = 0.01953125;
var C08 = 0.01068115234375;
var C22 = 0.75;
var C44 = 0.46875;
var C46 = 0.01302083333333333333;
var C48 = 0.00712076822916666666;
var C66 = 0.36458333333333333333;
var C68 = 0.00569661458333333333;
var C88 = 0.3076171875;

/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(es) {
  var en = [];
  en[0] = C00 - es * (C02 + es * (C04 + es * (C06 + es * C08)));
  en[1] = es * (C22 - es * (C04 + es * (C06 + es * C08)));
  var t = es * es;
  en[2] = t * (C44 - es * (C46 + es * C48));
  t *= es;
  en[3] = t * (C66 - es * C68);
  en[4] = t * es * C88;
  return en;
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/pj_inv_mlfn.js":
/*!******************************************************!*\
  !*** ./node_modules/proj4/lib/common/pj_inv_mlfn.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _pj_mlfn__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./pj_mlfn */ "./node_modules/proj4/lib/common/pj_mlfn.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");



var MAX_ITER = 20;

/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(arg, es, en) {
  var k = 1 / (1 - es);
  var phi = arg;
  for (var i = MAX_ITER; i; --i) { /* rarely goes over 2 iterations */
    var s = Math.sin(phi);
    var t = 1 - es * s * s;
    //t = this.pj_mlfn(phi, s, Math.cos(phi), en) - arg;
    //phi -= t * (t * Math.sqrt(t)) * k;
    t = ((0,_pj_mlfn__WEBPACK_IMPORTED_MODULE_0__["default"])(phi, s, Math.cos(phi), en) - arg) * (t * Math.sqrt(t)) * k;
    phi -= t;
    if (Math.abs(t) < _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
      return phi;
    }
  }
  //..reportError("cass:pj_inv_mlfn: Convergence error");
  return phi;
}


/***/ }),

/***/ "./node_modules/proj4/lib/common/pj_mlfn.js":
/*!**************************************************!*\
  !*** ./node_modules/proj4/lib/common/pj_mlfn.js ***!
  \**************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(phi, sphi, cphi, en) {
  cphi *= sphi;
  sphi *= sphi;
  return (en[0] * phi - cphi * (en[1] + sphi * (en[2] + sphi * (en[3] + sphi * en[4]))));
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/qsfnz.js":
/*!************************************************!*\
  !*** ./node_modules/proj4/lib/common/qsfnz.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(eccent, sinphi) {
  var con;
  if (eccent > 1.0e-7) {
    con = eccent * sinphi;
    return ((1 - eccent * eccent) * (sinphi / (1 - con * con) - (0.5 / eccent) * Math.log((1 - con) / (1 + con))));
  }
  else {
    return (2 * sinphi);
  }
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/sign.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/sign.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  return x<0 ? -1 : 1;
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/sinh.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/sinh.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(x) {
  var r = Math.exp(x);
  r = (r - 1 / r) / 2;
  return r;
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/srat.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/common/srat.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(esinp, exp) {
  return (Math.pow((1 - esinp) / (1 + esinp), exp));
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/toPoint.js":
/*!**************************************************!*\
  !*** ./node_modules/proj4/lib/common/toPoint.js ***!
  \**************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(array){
  var out = {
    x: array[0],
    y: array[1]
  };
  if (array.length>2) {
    out.z = array[2];
  }
  if (array.length>3) {
    out.m = array[3];
  }
  return out;
}

/***/ }),

/***/ "./node_modules/proj4/lib/common/tsfnz.js":
/*!************************************************!*\
  !*** ./node_modules/proj4/lib/common/tsfnz.js ***!
  \************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");


/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(eccent, phi, sinphi) {
  var con = eccent * sinphi;
  var com = 0.5 * eccent;
  con = Math.pow(((1 - con) / (1 + con)), com);
  return (Math.tan(0.5 * (_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI - phi)) / con);
}


/***/ }),

/***/ "./node_modules/proj4/lib/constants/Datum.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/constants/Datum.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ exports)
/* harmony export */ });
var exports = {};

exports.wgs84 = {
  towgs84: "0,0,0",
  ellipse: "WGS84",
  datumName: "WGS84"
};

exports.ch1903 = {
  towgs84: "674.374,15.056,405.346",
  ellipse: "bessel",
  datumName: "swiss"
};

exports.ggrs87 = {
  towgs84: "-199.87,74.79,246.62",
  ellipse: "GRS80",
  datumName: "Greek_Geodetic_Reference_System_1987"
};

exports.nad83 = {
  towgs84: "0,0,0",
  ellipse: "GRS80",
  datumName: "North_American_Datum_1983"
};

exports.nad27 = {
  nadgrids: "@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat",
  ellipse: "clrk66",
  datumName: "North_American_Datum_1927"
};

exports.potsdam = {
  towgs84: "598.1,73.7,418.2,0.202,0.045,-2.455,6.7",
  ellipse: "bessel",
  datumName: "Potsdam Rauenberg 1950 DHDN"
};

exports.carthage = {
  towgs84: "-263.0,6.0,431.0",
  ellipse: "clark80",
  datumName: "Carthage 1934 Tunisia"
};

exports.hermannskogel = {
  towgs84: "577.326,90.129,463.919,5.137,1.474,5.297,2.4232",
  ellipse: "bessel",
  datumName: "Hermannskogel"
};

exports.osni52 = {
  towgs84: "482.530,-130.596,564.557,-1.042,-0.214,-0.631,8.15",
  ellipse: "airy",
  datumName: "Irish National"
};

exports.ire65 = {
  towgs84: "482.530,-130.596,564.557,-1.042,-0.214,-0.631,8.15",
  ellipse: "mod_airy",
  datumName: "Ireland 1965"
};

exports.rassadiran = {
  towgs84: "-133.63,-157.5,-158.62",
  ellipse: "intl",
  datumName: "Rassadiran"
};

exports.nzgd49 = {
  towgs84: "59.47,-5.04,187.44,0.47,-0.1,1.024,-4.5993",
  ellipse: "intl",
  datumName: "New Zealand Geodetic Datum 1949"
};

exports.osgb36 = {
  towgs84: "446.448,-125.157,542.060,0.1502,0.2470,0.8421,-20.4894",
  ellipse: "airy",
  datumName: "Airy 1830"
};

exports.s_jtsk = {
  towgs84: "589,76,480",
  ellipse: 'bessel',
  datumName: 'S-JTSK (Ferro)'
};

exports.beduaram = {
  towgs84: '-106,-87,188',
  ellipse: 'clrk80',
  datumName: 'Beduaram'
};

exports.gunung_segara = {
  towgs84: '-403,684,41',
  ellipse: 'bessel',
  datumName: 'Gunung Segara Jakarta'
};

exports.rnb72 = {
  towgs84: "106.869,-52.2978,103.724,-0.33657,0.456955,-1.84218,1",
  ellipse: "intl",
  datumName: "Reseau National Belge 1972"
};


/***/ }),

/***/ "./node_modules/proj4/lib/constants/Ellipsoid.js":
/*!*******************************************************!*\
  !*** ./node_modules/proj4/lib/constants/Ellipsoid.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ exports),
/* harmony export */   "WGS84": () => (/* binding */ WGS84)
/* harmony export */ });
var exports = {};

exports.MERIT = {
  a: 6378137.0,
  rf: 298.257,
  ellipseName: "MERIT 1983"
};

exports.SGS85 = {
  a: 6378136.0,
  rf: 298.257,
  ellipseName: "Soviet Geodetic System 85"
};

exports.GRS80 = {
  a: 6378137.0,
  rf: 298.257222101,
  ellipseName: "GRS 1980(IUGG, 1980)"
};

exports.IAU76 = {
  a: 6378140.0,
  rf: 298.257,
  ellipseName: "IAU 1976"
};

exports.airy = {
  a: 6377563.396,
  b: 6356256.910,
  ellipseName: "Airy 1830"
};

exports.APL4 = {
  a: 6378137,
  rf: 298.25,
  ellipseName: "Appl. Physics. 1965"
};

exports.NWL9D = {
  a: 6378145.0,
  rf: 298.25,
  ellipseName: "Naval Weapons Lab., 1965"
};

exports.mod_airy = {
  a: 6377340.189,
  b: 6356034.446,
  ellipseName: "Modified Airy"
};

exports.andrae = {
  a: 6377104.43,
  rf: 300.0,
  ellipseName: "Andrae 1876 (Den., Iclnd.)"
};

exports.aust_SA = {
  a: 6378160.0,
  rf: 298.25,
  ellipseName: "Australian Natl & S. Amer. 1969"
};

exports.GRS67 = {
  a: 6378160.0,
  rf: 298.2471674270,
  ellipseName: "GRS 67(IUGG 1967)"
};

exports.bessel = {
  a: 6377397.155,
  rf: 299.1528128,
  ellipseName: "Bessel 1841"
};

exports.bess_nam = {
  a: 6377483.865,
  rf: 299.1528128,
  ellipseName: "Bessel 1841 (Namibia)"
};

exports.clrk66 = {
  a: 6378206.4,
  b: 6356583.8,
  ellipseName: "Clarke 1866"
};

exports.clrk80 = {
  a: 6378249.145,
  rf: 293.4663,
  ellipseName: "Clarke 1880 mod."
};

exports.clrk58 = {
  a: 6378293.645208759,
  rf: 294.2606763692654,
  ellipseName: "Clarke 1858"
};

exports.CPM = {
  a: 6375738.7,
  rf: 334.29,
  ellipseName: "Comm. des Poids et Mesures 1799"
};

exports.delmbr = {
  a: 6376428.0,
  rf: 311.5,
  ellipseName: "Delambre 1810 (Belgium)"
};

exports.engelis = {
  a: 6378136.05,
  rf: 298.2566,
  ellipseName: "Engelis 1985"
};

exports.evrst30 = {
  a: 6377276.345,
  rf: 300.8017,
  ellipseName: "Everest 1830"
};

exports.evrst48 = {
  a: 6377304.063,
  rf: 300.8017,
  ellipseName: "Everest 1948"
};

exports.evrst56 = {
  a: 6377301.243,
  rf: 300.8017,
  ellipseName: "Everest 1956"
};

exports.evrst69 = {
  a: 6377295.664,
  rf: 300.8017,
  ellipseName: "Everest 1969"
};

exports.evrstSS = {
  a: 6377298.556,
  rf: 300.8017,
  ellipseName: "Everest (Sabah & Sarawak)"
};

exports.fschr60 = {
  a: 6378166.0,
  rf: 298.3,
  ellipseName: "Fischer (Mercury Datum) 1960"
};

exports.fschr60m = {
  a: 6378155.0,
  rf: 298.3,
  ellipseName: "Fischer 1960"
};

exports.fschr68 = {
  a: 6378150.0,
  rf: 298.3,
  ellipseName: "Fischer 1968"
};

exports.helmert = {
  a: 6378200.0,
  rf: 298.3,
  ellipseName: "Helmert 1906"
};

exports.hough = {
  a: 6378270.0,
  rf: 297.0,
  ellipseName: "Hough"
};

exports.intl = {
  a: 6378388.0,
  rf: 297.0,
  ellipseName: "International 1909 (Hayford)"
};

exports.kaula = {
  a: 6378163.0,
  rf: 298.24,
  ellipseName: "Kaula 1961"
};

exports.lerch = {
  a: 6378139.0,
  rf: 298.257,
  ellipseName: "Lerch 1979"
};

exports.mprts = {
  a: 6397300.0,
  rf: 191.0,
  ellipseName: "Maupertius 1738"
};

exports.new_intl = {
  a: 6378157.5,
  b: 6356772.2,
  ellipseName: "New International 1967"
};

exports.plessis = {
  a: 6376523.0,
  rf: 6355863.0,
  ellipseName: "Plessis 1817 (France)"
};

exports.krass = {
  a: 6378245.0,
  rf: 298.3,
  ellipseName: "Krassovsky, 1942"
};

exports.SEasia = {
  a: 6378155.0,
  b: 6356773.3205,
  ellipseName: "Southeast Asia"
};

exports.walbeck = {
  a: 6376896.0,
  b: 6355834.8467,
  ellipseName: "Walbeck"
};

exports.WGS60 = {
  a: 6378165.0,
  rf: 298.3,
  ellipseName: "WGS 60"
};

exports.WGS66 = {
  a: 6378145.0,
  rf: 298.25,
  ellipseName: "WGS 66"
};

exports.WGS7 = {
  a: 6378135.0,
  rf: 298.26,
  ellipseName: "WGS 72"
};

var WGS84 = exports.WGS84 = {
  a: 6378137.0,
  rf: 298.257223563,
  ellipseName: "WGS 84"
};

exports.sphere = {
  a: 6370997.0,
  b: 6370997.0,
  ellipseName: "Normal Sphere (r=6370997)"
};


/***/ }),

/***/ "./node_modules/proj4/lib/constants/PrimeMeridian.js":
/*!***********************************************************!*\
  !*** ./node_modules/proj4/lib/constants/PrimeMeridian.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ exports)
/* harmony export */ });
var exports = {};


exports.greenwich = 0.0; //"0dE",
exports.lisbon = -9.131906111111; //"9d07'54.862\"W",
exports.paris = 2.337229166667; //"2d20'14.025\"E",
exports.bogota = -74.080916666667; //"74d04'51.3\"W",
exports.madrid = -3.687938888889; //"3d41'16.58\"W",
exports.rome = 12.452333333333; //"12d27'8.4\"E",
exports.bern = 7.439583333333; //"7d26'22.5\"E",
exports.jakarta = 106.807719444444; //"106d48'27.79\"E",
exports.ferro = -17.666666666667; //"17d40'W",
exports.brussels = 4.367975; //"4d22'4.71\"E",
exports.stockholm = 18.058277777778; //"18d3'29.8\"E",
exports.athens = 23.7163375; //"23d42'58.815\"E",
exports.oslo = 10.722916666667; //"10d43'22.5\"E"


/***/ }),

/***/ "./node_modules/proj4/lib/constants/units.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/constants/units.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  ft: {to_meter: 0.3048},
  'us-ft': {to_meter: 1200 / 3937}
});


/***/ }),

/***/ "./node_modules/proj4/lib/constants/values.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/constants/values.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "PJD_3PARAM": () => (/* binding */ PJD_3PARAM),
/* harmony export */   "PJD_7PARAM": () => (/* binding */ PJD_7PARAM),
/* harmony export */   "PJD_GRIDSHIFT": () => (/* binding */ PJD_GRIDSHIFT),
/* harmony export */   "PJD_WGS84": () => (/* binding */ PJD_WGS84),
/* harmony export */   "PJD_NODATUM": () => (/* binding */ PJD_NODATUM),
/* harmony export */   "SRS_WGS84_SEMIMAJOR": () => (/* binding */ SRS_WGS84_SEMIMAJOR),
/* harmony export */   "SRS_WGS84_SEMIMINOR": () => (/* binding */ SRS_WGS84_SEMIMINOR),
/* harmony export */   "SRS_WGS84_ESQUARED": () => (/* binding */ SRS_WGS84_ESQUARED),
/* harmony export */   "SEC_TO_RAD": () => (/* binding */ SEC_TO_RAD),
/* harmony export */   "HALF_PI": () => (/* binding */ HALF_PI),
/* harmony export */   "SIXTH": () => (/* binding */ SIXTH),
/* harmony export */   "RA4": () => (/* binding */ RA4),
/* harmony export */   "RA6": () => (/* binding */ RA6),
/* harmony export */   "EPSLN": () => (/* binding */ EPSLN),
/* harmony export */   "D2R": () => (/* binding */ D2R),
/* harmony export */   "R2D": () => (/* binding */ R2D),
/* harmony export */   "FORTPI": () => (/* binding */ FORTPI),
/* harmony export */   "TWO_PI": () => (/* binding */ TWO_PI),
/* harmony export */   "SPI": () => (/* binding */ SPI)
/* harmony export */ });
var PJD_3PARAM = 1;
var PJD_7PARAM = 2;
var PJD_GRIDSHIFT = 3;
var PJD_WGS84 = 4; // WGS84 or equivalent
var PJD_NODATUM = 5; // WGS84 or equivalent
var SRS_WGS84_SEMIMAJOR = 6378137.0;  // only used in grid shift transforms
var SRS_WGS84_SEMIMINOR = 6356752.314;  // only used in grid shift transforms
var SRS_WGS84_ESQUARED = 0.0066943799901413165; // only used in grid shift transforms
var SEC_TO_RAD = 4.84813681109535993589914102357e-6;
var HALF_PI = Math.PI/2;
// ellipoid pj_set_ell.c
var SIXTH = 0.1666666666666666667;
/* 1/6 */
var RA4 = 0.04722222222222222222;
/* 17/360 */
var RA6 = 0.02215608465608465608;
var EPSLN = 1.0e-10;
// you'd think you could use Number.EPSILON above but that makes
// Mollweide get into an infinate loop.

var D2R = 0.01745329251994329577;
var R2D = 57.29577951308232088;
var FORTPI = Math.PI/4;
var TWO_PI = Math.PI * 2;
// SPI is slightly greater than Math.PI, so values that exceed the -180..180
// degree range by a tiny amount don't get wrapped. This prevents points that
// have drifted from their original location along the 180th meridian (due to
// floating point error) from changing their sign.
var SPI = 3.14159265359;


/***/ }),

/***/ "./node_modules/proj4/lib/core.js":
/*!****************************************!*\
  !*** ./node_modules/proj4/lib/core.js ***!
  \****************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _Proj__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./Proj */ "./node_modules/proj4/lib/Proj.js");
/* harmony import */ var _transform__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./transform */ "./node_modules/proj4/lib/transform.js");


var wgs84 = (0,_Proj__WEBPACK_IMPORTED_MODULE_0__["default"])('WGS84');

function transformer(from, to, coords, enforceAxis) {
  var transformedArray, out, keys;
  if (Array.isArray(coords)) {
    transformedArray = (0,_transform__WEBPACK_IMPORTED_MODULE_1__["default"])(from, to, coords, enforceAxis) || {x: NaN, y: NaN};
    if (coords.length > 2) {
      if ((typeof from.name !== 'undefined' && from.name === 'geocent') || (typeof to.name !== 'undefined' && to.name === 'geocent')) {
        if (typeof transformedArray.z === 'number') {
          return [transformedArray.x, transformedArray.y, transformedArray.z].concat(coords.splice(3));
        } else {
          return [transformedArray.x, transformedArray.y, coords[2]].concat(coords.splice(3));
        }
      } else {
        return [transformedArray.x, transformedArray.y].concat(coords.splice(2));
      }
    } else {
      return [transformedArray.x, transformedArray.y];
    }
  } else {
    out = (0,_transform__WEBPACK_IMPORTED_MODULE_1__["default"])(from, to, coords, enforceAxis);
    keys = Object.keys(coords);
    if (keys.length === 2) {
      return out;
    }
    keys.forEach(function (key) {
      if ((typeof from.name !== 'undefined' && from.name === 'geocent') || (typeof to.name !== 'undefined' && to.name === 'geocent')) {
        if (key === 'x' || key === 'y' || key === 'z') {
          return;
        }
      } else {
        if (key === 'x' || key === 'y') {
          return;
        }
      }
      out[key] = coords[key];
    });
    return out;
  }
}

function checkProj(item) {
  if (item instanceof _Proj__WEBPACK_IMPORTED_MODULE_0__["default"]) {
    return item;
  }
  if (item.oProj) {
    return item.oProj;
  }
  return (0,_Proj__WEBPACK_IMPORTED_MODULE_0__["default"])(item);
}

function proj4(fromProj, toProj, coord) {
  fromProj = checkProj(fromProj);
  var single = false;
  var obj;
  if (typeof toProj === 'undefined') {
    toProj = fromProj;
    fromProj = wgs84;
    single = true;
  } else if (typeof toProj.x !== 'undefined' || Array.isArray(toProj)) {
    coord = toProj;
    toProj = fromProj;
    fromProj = wgs84;
    single = true;
  }
  toProj = checkProj(toProj);
  if (coord) {
    return transformer(fromProj, toProj, coord);
  } else {
    obj = {
      forward: function (coords, enforceAxis) {
        return transformer(fromProj, toProj, coords, enforceAxis);
      },
      inverse: function (coords, enforceAxis) {
        return transformer(toProj, fromProj, coords, enforceAxis);
      }
    };
    if (single) {
      obj.oProj = toProj;
    }
    return obj;
  }
}
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (proj4);

/***/ }),

/***/ "./node_modules/proj4/lib/datum.js":
/*!*****************************************!*\
  !*** ./node_modules/proj4/lib/datum.js ***!
  \*****************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./constants/values */ "./node_modules/proj4/lib/constants/values.js");


function datum(datumCode, datum_params, a, b, es, ep2, nadgrids) {
  var out = {};

  if (datumCode === undefined || datumCode === 'none') {
    out.datum_type = _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_NODATUM;
  } else {
    out.datum_type = _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_WGS84;
  }

  if (datum_params) {
    out.datum_params = datum_params.map(parseFloat);
    if (out.datum_params[0] !== 0 || out.datum_params[1] !== 0 || out.datum_params[2] !== 0) {
      out.datum_type = _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_3PARAM;
    }
    if (out.datum_params.length > 3) {
      if (out.datum_params[3] !== 0 || out.datum_params[4] !== 0 || out.datum_params[5] !== 0 || out.datum_params[6] !== 0) {
        out.datum_type = _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_7PARAM;
        out.datum_params[3] *= _constants_values__WEBPACK_IMPORTED_MODULE_0__.SEC_TO_RAD;
        out.datum_params[4] *= _constants_values__WEBPACK_IMPORTED_MODULE_0__.SEC_TO_RAD;
        out.datum_params[5] *= _constants_values__WEBPACK_IMPORTED_MODULE_0__.SEC_TO_RAD;
        out.datum_params[6] = (out.datum_params[6] / 1000000.0) + 1.0;
      }
    }
  }

  if (nadgrids) {
    out.datum_type = _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_GRIDSHIFT;
    out.grids = nadgrids;
  }
  out.a = a; //datum object also uses these values
  out.b = b;
  out.es = es;
  out.ep2 = ep2;
  return out;
}

/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (datum);


/***/ }),

/***/ "./node_modules/proj4/lib/datumUtils.js":
/*!**********************************************!*\
  !*** ./node_modules/proj4/lib/datumUtils.js ***!
  \**********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "compareDatums": () => (/* binding */ compareDatums),
/* harmony export */   "geodeticToGeocentric": () => (/* binding */ geodeticToGeocentric),
/* harmony export */   "geocentricToGeodetic": () => (/* binding */ geocentricToGeodetic),
/* harmony export */   "geocentricToWgs84": () => (/* binding */ geocentricToWgs84),
/* harmony export */   "geocentricFromWgs84": () => (/* binding */ geocentricFromWgs84)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./constants/values */ "./node_modules/proj4/lib/constants/values.js");


function compareDatums(source, dest) {
  if (source.datum_type !== dest.datum_type) {
    return false; // false, datums are not equal
  } else if (source.a !== dest.a || Math.abs(source.es - dest.es) > 0.000000000050) {
    // the tolerance for es is to ensure that GRS80 and WGS84
    // are considered identical
    return false;
  } else if (source.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_3PARAM) {
    return (source.datum_params[0] === dest.datum_params[0] && source.datum_params[1] === dest.datum_params[1] && source.datum_params[2] === dest.datum_params[2]);
  } else if (source.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_7PARAM) {
    return (source.datum_params[0] === dest.datum_params[0] && source.datum_params[1] === dest.datum_params[1] && source.datum_params[2] === dest.datum_params[2] && source.datum_params[3] === dest.datum_params[3] && source.datum_params[4] === dest.datum_params[4] && source.datum_params[5] === dest.datum_params[5] && source.datum_params[6] === dest.datum_params[6]);
  } else {
    return true; // datums are equal
  }
} // cs_compare_datums()

/*
 * The function Convert_Geodetic_To_Geocentric converts geodetic coordinates
 * (latitude, longitude, and height) to geocentric coordinates (X, Y, Z),
 * according to the current ellipsoid parameters.
 *
 *    Latitude  : Geodetic latitude in radians                     (input)
 *    Longitude : Geodetic longitude in radians                    (input)
 *    Height    : Geodetic height, in meters                       (input)
 *    X         : Calculated Geocentric X coordinate, in meters    (output)
 *    Y         : Calculated Geocentric Y coordinate, in meters    (output)
 *    Z         : Calculated Geocentric Z coordinate, in meters    (output)
 *
 */
function geodeticToGeocentric(p, es, a) {
  var Longitude = p.x;
  var Latitude = p.y;
  var Height = p.z ? p.z : 0; //Z value not always supplied

  var Rn; /*  Earth radius at location  */
  var Sin_Lat; /*  Math.sin(Latitude)  */
  var Sin2_Lat; /*  Square of Math.sin(Latitude)  */
  var Cos_Lat; /*  Math.cos(Latitude)  */

  /*
   ** Don't blow up if Latitude is just a little out of the value
   ** range as it may just be a rounding issue.  Also removed longitude
   ** test, it should be wrapped by Math.cos() and Math.sin().  NFW for PROJ.4, Sep/2001.
   */
  if (Latitude < -_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI && Latitude > -1.001 * _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI) {
    Latitude = -_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
  } else if (Latitude > _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI && Latitude < 1.001 * _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI) {
    Latitude = _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
  } else if (Latitude < -_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI) {
    /* Latitude out of range */
    //..reportError('geocent:lat out of range:' + Latitude);
    return { x: -Infinity, y: -Infinity, z: p.z };
  } else if (Latitude > _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI) {
    /* Latitude out of range */
    return { x: Infinity, y: Infinity, z: p.z };
  }

  if (Longitude > Math.PI) {
    Longitude -= (2 * Math.PI);
  }
  Sin_Lat = Math.sin(Latitude);
  Cos_Lat = Math.cos(Latitude);
  Sin2_Lat = Sin_Lat * Sin_Lat;
  Rn = a / (Math.sqrt(1.0e0 - es * Sin2_Lat));
  return {
    x: (Rn + Height) * Cos_Lat * Math.cos(Longitude),
    y: (Rn + Height) * Cos_Lat * Math.sin(Longitude),
    z: ((Rn * (1 - es)) + Height) * Sin_Lat
  };
} // cs_geodetic_to_geocentric()

function geocentricToGeodetic(p, es, a, b) {
  /* local defintions and variables */
  /* end-criterium of loop, accuracy of sin(Latitude) */
  var genau = 1e-12;
  var genau2 = (genau * genau);
  var maxiter = 30;

  var P; /* distance between semi-minor axis and location */
  var RR; /* distance between center and location */
  var CT; /* sin of geocentric latitude */
  var ST; /* cos of geocentric latitude */
  var RX;
  var RK;
  var RN; /* Earth radius at location */
  var CPHI0; /* cos of start or old geodetic latitude in iterations */
  var SPHI0; /* sin of start or old geodetic latitude in iterations */
  var CPHI; /* cos of searched geodetic latitude */
  var SPHI; /* sin of searched geodetic latitude */
  var SDPHI; /* end-criterium: addition-theorem of sin(Latitude(iter)-Latitude(iter-1)) */
  var iter; /* # of continous iteration, max. 30 is always enough (s.a.) */

  var X = p.x;
  var Y = p.y;
  var Z = p.z ? p.z : 0.0; //Z value not always supplied
  var Longitude;
  var Latitude;
  var Height;

  P = Math.sqrt(X * X + Y * Y);
  RR = Math.sqrt(X * X + Y * Y + Z * Z);

  /*      special cases for latitude and longitude */
  if (P / a < genau) {

    /*  special case, if P=0. (X=0., Y=0.) */
    Longitude = 0.0;

    /*  if (X,Y,Z)=(0.,0.,0.) then Height becomes semi-minor axis
     *  of ellipsoid (=center of mass), Latitude becomes PI/2 */
    if (RR / a < genau) {
      Latitude = _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
      Height = -b;
      return {
        x: p.x,
        y: p.y,
        z: p.z
      };
    }
  } else {
    /*  ellipsoidal (geodetic) longitude
     *  interval: -PI < Longitude <= +PI */
    Longitude = Math.atan2(Y, X);
  }

  /* --------------------------------------------------------------
   * Following iterative algorithm was developped by
   * "Institut for Erdmessung", University of Hannover, July 1988.
   * Internet: www.ife.uni-hannover.de
   * Iterative computation of CPHI,SPHI and Height.
   * Iteration of CPHI and SPHI to 10**-12 radian resp.
   * 2*10**-7 arcsec.
   * --------------------------------------------------------------
   */
  CT = Z / RR;
  ST = P / RR;
  RX = 1.0 / Math.sqrt(1.0 - es * (2.0 - es) * ST * ST);
  CPHI0 = ST * (1.0 - es) * RX;
  SPHI0 = CT * RX;
  iter = 0;

  /* loop to find sin(Latitude) resp. Latitude
   * until |sin(Latitude(iter)-Latitude(iter-1))| < genau */
  do {
    iter++;
    RN = a / Math.sqrt(1.0 - es * SPHI0 * SPHI0);

    /*  ellipsoidal (geodetic) height */
    Height = P * CPHI0 + Z * SPHI0 - RN * (1.0 - es * SPHI0 * SPHI0);

    RK = es * RN / (RN + Height);
    RX = 1.0 / Math.sqrt(1.0 - RK * (2.0 - RK) * ST * ST);
    CPHI = ST * (1.0 - RK) * RX;
    SPHI = CT * RX;
    SDPHI = SPHI * CPHI0 - CPHI * SPHI0;
    CPHI0 = CPHI;
    SPHI0 = SPHI;
  }
  while (SDPHI * SDPHI > genau2 && iter < maxiter);

  /*      ellipsoidal (geodetic) latitude */
  Latitude = Math.atan(SPHI / Math.abs(CPHI));
  return {
    x: Longitude,
    y: Latitude,
    z: Height
  };
} // cs_geocentric_to_geodetic()

/****************************************************************/
// pj_geocentic_to_wgs84( p )
//  p = point to transform in geocentric coordinates (x,y,z)


/** point object, nothing fancy, just allows values to be
    passed back and forth by reference rather than by value.
    Other point classes may be used as long as they have
    x and y properties, which will get modified in the transform method.
*/
function geocentricToWgs84(p, datum_type, datum_params) {

  if (datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_3PARAM) {
    // if( x[io] === HUGE_VAL )
    //    continue;
    return {
      x: p.x + datum_params[0],
      y: p.y + datum_params[1],
      z: p.z + datum_params[2],
    };
  } else if (datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_7PARAM) {
    var Dx_BF = datum_params[0];
    var Dy_BF = datum_params[1];
    var Dz_BF = datum_params[2];
    var Rx_BF = datum_params[3];
    var Ry_BF = datum_params[4];
    var Rz_BF = datum_params[5];
    var M_BF = datum_params[6];
    // if( x[io] === HUGE_VAL )
    //    continue;
    return {
      x: M_BF * (p.x - Rz_BF * p.y + Ry_BF * p.z) + Dx_BF,
      y: M_BF * (Rz_BF * p.x + p.y - Rx_BF * p.z) + Dy_BF,
      z: M_BF * (-Ry_BF * p.x + Rx_BF * p.y + p.z) + Dz_BF
    };
  }
} // cs_geocentric_to_wgs84

/****************************************************************/
// pj_geocentic_from_wgs84()
//  coordinate system definition,
//  point to transform in geocentric coordinates (x,y,z)
function geocentricFromWgs84(p, datum_type, datum_params) {

  if (datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_3PARAM) {
    //if( x[io] === HUGE_VAL )
    //    continue;
    return {
      x: p.x - datum_params[0],
      y: p.y - datum_params[1],
      z: p.z - datum_params[2],
    };

  } else if (datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_7PARAM) {
    var Dx_BF = datum_params[0];
    var Dy_BF = datum_params[1];
    var Dz_BF = datum_params[2];
    var Rx_BF = datum_params[3];
    var Ry_BF = datum_params[4];
    var Rz_BF = datum_params[5];
    var M_BF = datum_params[6];
    var x_tmp = (p.x - Dx_BF) / M_BF;
    var y_tmp = (p.y - Dy_BF) / M_BF;
    var z_tmp = (p.z - Dz_BF) / M_BF;
    //if( x[io] === HUGE_VAL )
    //    continue;

    return {
      x: x_tmp + Rz_BF * y_tmp - Ry_BF * z_tmp,
      y: -Rz_BF * x_tmp + y_tmp + Rx_BF * z_tmp,
      z: Ry_BF * x_tmp - Rx_BF * y_tmp + z_tmp
    };
  } //cs_geocentric_from_wgs84()
}


/***/ }),

/***/ "./node_modules/proj4/lib/datum_transform.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/datum_transform.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__),
/* harmony export */   "applyGridShift": () => (/* binding */ applyGridShift)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _datumUtils__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./datumUtils */ "./node_modules/proj4/lib/datumUtils.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");




function checkParams(type) {
  return (type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_3PARAM || type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_7PARAM);
}

/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(source, dest, point) {
  // Short cut if the datums are identical.
  if ((0,_datumUtils__WEBPACK_IMPORTED_MODULE_1__.compareDatums)(source, dest)) {
    return point; // in this case, zero is sucess,
    // whereas cs_compare_datums returns 1 to indicate TRUE
    // confusing, should fix this
  }

  // Explicitly skip datum transform by setting 'datum=none' as parameter for either source or dest
  if (source.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_NODATUM || dest.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_NODATUM) {
    return point;
  }

  // If this datum requires grid shifts, then apply it to geodetic coordinates.
  var source_a = source.a;
  var source_es = source.es;
  if (source.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_GRIDSHIFT) {
    var gridShiftCode = applyGridShift(source, false, point);
    if (gridShiftCode !== 0) {
      return undefined;
    }
    source_a = _constants_values__WEBPACK_IMPORTED_MODULE_0__.SRS_WGS84_SEMIMAJOR;
    source_es = _constants_values__WEBPACK_IMPORTED_MODULE_0__.SRS_WGS84_ESQUARED;
  }

  var dest_a = dest.a;
  var dest_b = dest.b;
  var dest_es = dest.es;
  if (dest.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_GRIDSHIFT) {
    dest_a = _constants_values__WEBPACK_IMPORTED_MODULE_0__.SRS_WGS84_SEMIMAJOR;
    dest_b = _constants_values__WEBPACK_IMPORTED_MODULE_0__.SRS_WGS84_SEMIMINOR;
    dest_es = _constants_values__WEBPACK_IMPORTED_MODULE_0__.SRS_WGS84_ESQUARED;
  }

  // Do we need to go through geocentric coordinates?
  if (source_es === dest_es && source_a === dest_a && !checkParams(source.datum_type) &&  !checkParams(dest.datum_type)) {
    return point;
  }

  // Convert to geocentric coordinates.
  point = (0,_datumUtils__WEBPACK_IMPORTED_MODULE_1__.geodeticToGeocentric)(point, source_es, source_a);
  // Convert between datums
  if (checkParams(source.datum_type)) {
    point = (0,_datumUtils__WEBPACK_IMPORTED_MODULE_1__.geocentricToWgs84)(point, source.datum_type, source.datum_params);
  }
  if (checkParams(dest.datum_type)) {
    point = (0,_datumUtils__WEBPACK_IMPORTED_MODULE_1__.geocentricFromWgs84)(point, dest.datum_type, dest.datum_params);
  }
  point = (0,_datumUtils__WEBPACK_IMPORTED_MODULE_1__.geocentricToGeodetic)(point, dest_es, dest_a, dest_b);

  if (dest.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_GRIDSHIFT) {
    var destGridShiftResult = applyGridShift(dest, true, point);
    if (destGridShiftResult !== 0) {
      return undefined;
    }
  }

  return point;
}

function applyGridShift(source, inverse, point) {
  if (source.grids === null || source.grids.length === 0) {
    console.log('Grid shift grids not found');
    return -1;
  }
  var input = {x: -point.x, y: point.y};
  var output = {x: Number.NaN, y: Number.NaN};
  var onlyMandatoryGrids = false;
  var attemptedGrids = [];
  for (var i = 0; i < source.grids.length; i++) {
    var grid = source.grids[i];
    attemptedGrids.push(grid.name);
    if (grid.isNull) {
      output = input;
      break;
    }
    onlyMandatoryGrids = grid.mandatory;
    if (grid.grid === null) {
      if (grid.mandatory) {
        console.log("Unable to find mandatory grid '" + grid.name + "'");
        return -1;
      }
      continue;
    }
    var subgrid = grid.grid.subgrids[0];
    // skip tables that don't match our point at all
    var epsilon = (Math.abs(subgrid.del[1]) + Math.abs(subgrid.del[0])) / 10000.0;
    var minX = subgrid.ll[0] - epsilon;
    var minY = subgrid.ll[1] - epsilon;
    var maxX = subgrid.ll[0] + (subgrid.lim[0] - 1) * subgrid.del[0] + epsilon;
    var maxY = subgrid.ll[1] + (subgrid.lim[1] - 1) * subgrid.del[1] + epsilon;
    if (minY > input.y || minX > input.x || maxY < input.y || maxX < input.x ) {
      continue;
    }
    output = applySubgridShift(input, inverse, subgrid);
    if (!isNaN(output.x)) {
      break;
    }
  }
  if (isNaN(output.x)) {
    console.log("Failed to find a grid shift table for location '"+
      -input.x * _constants_values__WEBPACK_IMPORTED_MODULE_0__.R2D + " " + input.y * _constants_values__WEBPACK_IMPORTED_MODULE_0__.R2D + " tried: '" + attemptedGrids + "'");
    return -1;
  }
  point.x = -output.x;
  point.y = output.y;
  return 0;
}

function applySubgridShift(pin, inverse, ct) {
  var val = {x: Number.NaN, y: Number.NaN};
  if (isNaN(pin.x)) { return val; }
  var tb = {x: pin.x, y: pin.y};
  tb.x -= ct.ll[0];
  tb.y -= ct.ll[1];
  tb.x = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_2__["default"])(tb.x - Math.PI) + Math.PI;
  var t = nadInterpolate(tb, ct);
  if (inverse) {
    if (isNaN(t.x)) {
      return val;
    }
    t.x = tb.x - t.x;
    t.y = tb.y - t.y;
    var i = 9, tol = 1e-12;
    var dif, del;
    do {
      del = nadInterpolate(t, ct);
      if (isNaN(del.x)) {
        console.log("Inverse grid shift iteration failed, presumably at grid edge.  Using first approximation.");
        break;
      }
      dif = {x: tb.x - (del.x + t.x), y: tb.y - (del.y + t.y)};
      t.x += dif.x;
      t.y += dif.y;
    } while (i-- && Math.abs(dif.x) > tol && Math.abs(dif.y) > tol);
    if (i < 0) {
      console.log("Inverse grid shift iterator failed to converge.");
      return val;
    }
    val.x = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_2__["default"])(t.x + ct.ll[0]);
    val.y = t.y + ct.ll[1];
  } else {
    if (!isNaN(t.x)) {
      val.x = pin.x + t.x;
      val.y = pin.y + t.y;
    }
  }
  return val;
}

function nadInterpolate(pin, ct) {
  var t = {x: pin.x / ct.del[0], y: pin.y / ct.del[1]};
  var indx = {x: Math.floor(t.x), y: Math.floor(t.y)};
  var frct = {x: t.x - 1.0 * indx.x, y: t.y - 1.0 * indx.y};
  var val= {x: Number.NaN, y: Number.NaN};
  var inx;
  if (indx.x < 0 || indx.x >= ct.lim[0]) {
    return val;
  }
  if (indx.y < 0 || indx.y >= ct.lim[1]) {
    return val;
  }
  inx = (indx.y * ct.lim[0]) + indx.x;
  var f00 = {x: ct.cvs[inx][0], y: ct.cvs[inx][1]};
  inx++;
  var f10= {x: ct.cvs[inx][0], y: ct.cvs[inx][1]};
  inx += ct.lim[0];
  var f11 = {x: ct.cvs[inx][0], y: ct.cvs[inx][1]};
  inx--;
  var f01 = {x: ct.cvs[inx][0], y: ct.cvs[inx][1]};
  var m11 = frct.x * frct.y, m10 = frct.x * (1.0 - frct.y),
    m00 = (1.0 - frct.x) * (1.0 - frct.y), m01 = (1.0 - frct.x) * frct.y;
  val.x = (m00 * f00.x + m10 * f10.x + m01 * f01.x + m11 * f11.x);
  val.y = (m00 * f00.y + m10 * f10.y + m01 * f01.y + m11 * f11.y);
  return val;
}


/***/ }),

/***/ "./node_modules/proj4/lib/defs.js":
/*!****************************************!*\
  !*** ./node_modules/proj4/lib/defs.js ***!
  \****************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _global__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./global */ "./node_modules/proj4/lib/global.js");
/* harmony import */ var _projString__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./projString */ "./node_modules/proj4/lib/projString.js");
/* harmony import */ var wkt_parser__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! wkt-parser */ "./node_modules/wkt-parser/index.js");




function defs(name) {
  /*global console*/
  var that = this;
  if (arguments.length === 2) {
    var def = arguments[1];
    if (typeof def === 'string') {
      if (def.charAt(0) === '+') {
        defs[name] = (0,_projString__WEBPACK_IMPORTED_MODULE_1__["default"])(arguments[1]);
      }
      else {
        defs[name] = (0,wkt_parser__WEBPACK_IMPORTED_MODULE_2__["default"])(arguments[1]);
      }
    } else {
      defs[name] = def;
    }
  }
  else if (arguments.length === 1) {
    if (Array.isArray(name)) {
      return name.map(function(v) {
        if (Array.isArray(v)) {
          defs.apply(that, v);
        }
        else {
          defs(v);
        }
      });
    }
    else if (typeof name === 'string') {
      if (name in defs) {
        return defs[name];
      }
    }
    else if ('EPSG' in name) {
      defs['EPSG:' + name.EPSG] = name;
    }
    else if ('ESRI' in name) {
      defs['ESRI:' + name.ESRI] = name;
    }
    else if ('IAU2000' in name) {
      defs['IAU2000:' + name.IAU2000] = name;
    }
    else {
      console.log(name);
    }
    return;
  }


}
(0,_global__WEBPACK_IMPORTED_MODULE_0__["default"])(defs);
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (defs);


/***/ }),

/***/ "./node_modules/proj4/lib/deriveConstants.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/deriveConstants.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "eccentricity": () => (/* binding */ eccentricity),
/* harmony export */   "sphere": () => (/* binding */ sphere)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _constants_Ellipsoid__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./constants/Ellipsoid */ "./node_modules/proj4/lib/constants/Ellipsoid.js");
/* harmony import */ var _match__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./match */ "./node_modules/proj4/lib/match.js");




function eccentricity(a, b, rf, R_A) {
  var a2 = a * a; // used in geocentric
  var b2 = b * b; // used in geocentric
  var es = (a2 - b2) / a2; // e ^ 2
  var e = 0;
  if (R_A) {
    a *= 1 - es * (_constants_values__WEBPACK_IMPORTED_MODULE_0__.SIXTH + es * (_constants_values__WEBPACK_IMPORTED_MODULE_0__.RA4 + es * _constants_values__WEBPACK_IMPORTED_MODULE_0__.RA6));
    a2 = a * a;
    es = 0;
  } else {
    e = Math.sqrt(es); // eccentricity
  }
  var ep2 = (a2 - b2) / b2; // used in geocentric
  return {
    es: es,
    e: e,
    ep2: ep2
  };
}
function sphere(a, b, rf, ellps, sphere) {
  if (!a) { // do we have an ellipsoid?
    var ellipse = (0,_match__WEBPACK_IMPORTED_MODULE_2__["default"])(_constants_Ellipsoid__WEBPACK_IMPORTED_MODULE_1__["default"], ellps);
    if (!ellipse) {
      ellipse = _constants_Ellipsoid__WEBPACK_IMPORTED_MODULE_1__.WGS84;
    }
    a = ellipse.a;
    b = ellipse.b;
    rf = ellipse.rf;
  }

  if (rf && !b) {
    b = (1.0 - 1.0 / rf) * a;
  }
  if (rf === 0 || Math.abs(a - b) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
    sphere = true;
    b = a;
  }
  return {
    a: a,
    b: b,
    rf: rf,
    sphere: sphere
  };
}


/***/ }),

/***/ "./node_modules/proj4/lib/extend.js":
/*!******************************************!*\
  !*** ./node_modules/proj4/lib/extend.js ***!
  \******************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(destination, source) {
  destination = destination || {};
  var value, property;
  if (!source) {
    return destination;
  }
  for (property in source) {
    value = source[property];
    if (value !== undefined) {
      destination[property] = value;
    }
  }
  return destination;
}


/***/ }),

/***/ "./node_modules/proj4/lib/global.js":
/*!******************************************!*\
  !*** ./node_modules/proj4/lib/global.js ***!
  \******************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(defs) {
  defs('EPSG:4326', "+title=WGS 84 (long/lat) +proj=longlat +ellps=WGS84 +datum=WGS84 +units=degrees");
  defs('EPSG:4269', "+title=NAD83 (long/lat) +proj=longlat +a=6378137.0 +b=6356752.31414036 +ellps=GRS80 +datum=NAD83 +units=degrees");
  defs('EPSG:3857', "+title=WGS 84 / Pseudo-Mercator +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs");

  defs.WGS84 = defs['EPSG:4326'];
  defs['EPSG:3785'] = defs['EPSG:3857']; // maintain backward compat, official code is 3857
  defs.GOOGLE = defs['EPSG:3857'];
  defs['EPSG:900913'] = defs['EPSG:3857'];
  defs['EPSG:102113'] = defs['EPSG:3857'];
}


/***/ }),

/***/ "./node_modules/proj4/lib/index.js":
/*!*****************************************!*\
  !*** ./node_modules/proj4/lib/index.js ***!
  \*****************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _core__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./core */ "./node_modules/proj4/lib/core.js");
/* harmony import */ var _Proj__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./Proj */ "./node_modules/proj4/lib/Proj.js");
/* harmony import */ var _Point__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./Point */ "./node_modules/proj4/lib/Point.js");
/* harmony import */ var _common_toPoint__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./common/toPoint */ "./node_modules/proj4/lib/common/toPoint.js");
/* harmony import */ var _defs__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./defs */ "./node_modules/proj4/lib/defs.js");
/* harmony import */ var _nadgrid__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./nadgrid */ "./node_modules/proj4/lib/nadgrid.js");
/* harmony import */ var _transform__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./transform */ "./node_modules/proj4/lib/transform.js");
/* harmony import */ var mgrs__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! mgrs */ "./node_modules/mgrs/mgrs.js");
/* harmony import */ var _projs__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../projs */ "./node_modules/proj4/projs.js");










_core__WEBPACK_IMPORTED_MODULE_0__["default"].defaultDatum = 'WGS84'; //default datum
_core__WEBPACK_IMPORTED_MODULE_0__["default"].Proj = _Proj__WEBPACK_IMPORTED_MODULE_1__["default"];
_core__WEBPACK_IMPORTED_MODULE_0__["default"].WGS84 = new _core__WEBPACK_IMPORTED_MODULE_0__["default"].Proj('WGS84');
_core__WEBPACK_IMPORTED_MODULE_0__["default"].Point = _Point__WEBPACK_IMPORTED_MODULE_2__["default"];
_core__WEBPACK_IMPORTED_MODULE_0__["default"].toPoint = _common_toPoint__WEBPACK_IMPORTED_MODULE_3__["default"];
_core__WEBPACK_IMPORTED_MODULE_0__["default"].defs = _defs__WEBPACK_IMPORTED_MODULE_4__["default"];
_core__WEBPACK_IMPORTED_MODULE_0__["default"].nadgrid = _nadgrid__WEBPACK_IMPORTED_MODULE_5__["default"];
_core__WEBPACK_IMPORTED_MODULE_0__["default"].transform = _transform__WEBPACK_IMPORTED_MODULE_6__["default"];
_core__WEBPACK_IMPORTED_MODULE_0__["default"].mgrs = mgrs__WEBPACK_IMPORTED_MODULE_7__["default"];
_core__WEBPACK_IMPORTED_MODULE_0__["default"].version = '__VERSION__';
(0,_projs__WEBPACK_IMPORTED_MODULE_8__["default"])(_core__WEBPACK_IMPORTED_MODULE_0__["default"]);
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (_core__WEBPACK_IMPORTED_MODULE_0__["default"]);


/***/ }),

/***/ "./node_modules/proj4/lib/match.js":
/*!*****************************************!*\
  !*** ./node_modules/proj4/lib/match.js ***!
  \*****************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ match)
/* harmony export */ });
var ignoredChar = /[\s_\-\/\(\)]/g;
function match(obj, key) {
  if (obj[key]) {
    return obj[key];
  }
  var keys = Object.keys(obj);
  var lkey = key.toLowerCase().replace(ignoredChar, '');
  var i = -1;
  var testkey, processedKey;
  while (++i < keys.length) {
    testkey = keys[i];
    processedKey = testkey.toLowerCase().replace(ignoredChar, '');
    if (processedKey === lkey) {
      return obj[testkey];
    }
  }
}


/***/ }),

/***/ "./node_modules/proj4/lib/nadgrid.js":
/*!*******************************************!*\
  !*** ./node_modules/proj4/lib/nadgrid.js ***!
  \*******************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ nadgrid),
/* harmony export */   "getNadgrids": () => (/* binding */ getNadgrids)
/* harmony export */ });
/**
 * Resources for details of NTv2 file formats:
 * - https://web.archive.org/web/20140127204822if_/http://www.mgs.gov.on.ca:80/stdprodconsume/groups/content/@mgs/@iandit/documents/resourcelist/stel02_047447.pdf
 * - http://mimaka.com/help/gs/html/004_NTV2%20Data%20Format.htm
 */

var loadedNadgrids = {};

/**
 * Load a binary NTv2 file (.gsb) to a key that can be used in a proj string like +nadgrids=<key>. Pass the NTv2 file
 * as an ArrayBuffer.
 */
function nadgrid(key, data) {
  var view = new DataView(data);
  var isLittleEndian = detectLittleEndian(view);
  var header = readHeader(view, isLittleEndian);
  if (header.nSubgrids > 1) {
    console.log('Only single NTv2 subgrids are currently supported, subsequent sub grids are ignored');
  }
  var subgrids = readSubgrids(view, header, isLittleEndian);
  var nadgrid = {header: header, subgrids: subgrids};
  loadedNadgrids[key] = nadgrid;
  return nadgrid;
}

/**
 * Given a proj4 value for nadgrids, return an array of loaded grids
 */
function getNadgrids(nadgrids) {
  // Format details: http://proj.maptools.org/gen_parms.html
  if (nadgrids === undefined) { return null; }
  var grids = nadgrids.split(',');
  return grids.map(parseNadgridString);
}

function parseNadgridString(value) {
  if (value.length === 0) {
    return null;
  }
  var optional = value[0] === '@';
  if (optional) {
    value = value.slice(1);
  }
  if (value === 'null') {
    return {name: 'null', mandatory: !optional, grid: null, isNull: true};
  }
  return {
    name: value,
    mandatory: !optional,
    grid: loadedNadgrids[value] || null,
    isNull: false
  };
}

function secondsToRadians(seconds) {
  return (seconds / 3600) * Math.PI / 180;
}

function detectLittleEndian(view) {
  var nFields = view.getInt32(8, false);
  if (nFields === 11) {
    return false;
  }
  nFields = view.getInt32(8, true);
  if (nFields !== 11) {
    console.warn('Failed to detect nadgrid endian-ness, defaulting to little-endian');
  }
  return true;
}

function readHeader(view, isLittleEndian) {
  return {
    nFields: view.getInt32(8, isLittleEndian),
    nSubgridFields: view.getInt32(24, isLittleEndian),
    nSubgrids: view.getInt32(40, isLittleEndian),
    shiftType: decodeString(view, 56, 56 + 8).trim(),
    fromSemiMajorAxis: view.getFloat64(120, isLittleEndian),
    fromSemiMinorAxis: view.getFloat64(136, isLittleEndian),
    toSemiMajorAxis: view.getFloat64(152, isLittleEndian),
    toSemiMinorAxis: view.getFloat64(168, isLittleEndian),
  };
}

function decodeString(view, start, end) {
  return String.fromCharCode.apply(null, new Uint8Array(view.buffer.slice(start, end)));
}

function readSubgrids(view, header, isLittleEndian) {
  var gridOffset = 176;
  var grids = [];
  for (var i = 0; i < header.nSubgrids; i++) {
    var subHeader = readGridHeader(view, gridOffset, isLittleEndian);
    var nodes = readGridNodes(view, gridOffset, subHeader, isLittleEndian);
    var lngColumnCount = Math.round(
      1 + (subHeader.upperLongitude - subHeader.lowerLongitude) / subHeader.longitudeInterval);
    var latColumnCount = Math.round(
      1 + (subHeader.upperLatitude - subHeader.lowerLatitude) / subHeader.latitudeInterval);
    // Proj4 operates on radians whereas the coordinates are in seconds in the grid
    grids.push({
      ll: [secondsToRadians(subHeader.lowerLongitude), secondsToRadians(subHeader.lowerLatitude)],
      del: [secondsToRadians(subHeader.longitudeInterval), secondsToRadians(subHeader.latitudeInterval)],
      lim: [lngColumnCount, latColumnCount],
      count: subHeader.gridNodeCount,
      cvs: mapNodes(nodes)
    });
  }
  return grids;
}

function mapNodes(nodes) {
  return nodes.map(function (r) {return [secondsToRadians(r.longitudeShift), secondsToRadians(r.latitudeShift)];});
}

function readGridHeader(view, offset, isLittleEndian) {
  return {
    name: decodeString(view, offset + 8, offset + 16).trim(),
    parent: decodeString(view, offset + 24, offset + 24 + 8).trim(),
    lowerLatitude: view.getFloat64(offset + 72, isLittleEndian),
    upperLatitude: view.getFloat64(offset + 88, isLittleEndian),
    lowerLongitude: view.getFloat64(offset + 104, isLittleEndian),
    upperLongitude: view.getFloat64(offset + 120, isLittleEndian),
    latitudeInterval: view.getFloat64(offset + 136, isLittleEndian),
    longitudeInterval: view.getFloat64(offset + 152, isLittleEndian),
    gridNodeCount: view.getInt32(offset + 168, isLittleEndian)
  };
}

function readGridNodes(view, offset, gridHeader, isLittleEndian) {
  var nodesOffset = offset + 176;
  var gridRecordLength = 16;
  var gridShiftRecords = [];
  for (var i = 0; i < gridHeader.gridNodeCount; i++) {
    var record = {
      latitudeShift: view.getFloat32(nodesOffset + i * gridRecordLength, isLittleEndian),
      longitudeShift: view.getFloat32(nodesOffset + i * gridRecordLength + 4, isLittleEndian),
      latitudeAccuracy: view.getFloat32(nodesOffset + i * gridRecordLength + 8, isLittleEndian),
      longitudeAccuracy: view.getFloat32(nodesOffset + i * gridRecordLength + 12, isLittleEndian),
    };
    gridShiftRecords.push(record);
  }
  return gridShiftRecords;
}


/***/ }),

/***/ "./node_modules/proj4/lib/parseCode.js":
/*!*********************************************!*\
  !*** ./node_modules/proj4/lib/parseCode.js ***!
  \*********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _defs__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./defs */ "./node_modules/proj4/lib/defs.js");
/* harmony import */ var wkt_parser__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! wkt-parser */ "./node_modules/wkt-parser/index.js");
/* harmony import */ var _projString__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./projString */ "./node_modules/proj4/lib/projString.js");
/* harmony import */ var _match__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./match */ "./node_modules/proj4/lib/match.js");




function testObj(code){
  return typeof code === 'string';
}
function testDef(code){
  return code in _defs__WEBPACK_IMPORTED_MODULE_0__["default"];
}
var codeWords = ['PROJECTEDCRS', 'PROJCRS', 'GEOGCS','GEOCCS','PROJCS','LOCAL_CS', 'GEODCRS', 'GEODETICCRS', 'GEODETICDATUM', 'ENGCRS', 'ENGINEERINGCRS'];
function testWKT(code){
  return codeWords.some(function (word) {
    return code.indexOf(word) > -1;
  });
}
var codes = ['3857', '900913', '3785', '102113'];
function checkMercator(item) {
  var auth = (0,_match__WEBPACK_IMPORTED_MODULE_3__["default"])(item, 'authority');
  if (!auth) {
    return;
  }
  var code = (0,_match__WEBPACK_IMPORTED_MODULE_3__["default"])(auth, 'epsg');
  return code && codes.indexOf(code) > -1;
}
function checkProjStr(item) {
  var ext = (0,_match__WEBPACK_IMPORTED_MODULE_3__["default"])(item, 'extension');
  if (!ext) {
    return;
  }
  return (0,_match__WEBPACK_IMPORTED_MODULE_3__["default"])(ext, 'proj4');
}
function testProj(code){
  return code[0] === '+';
}
function parse(code){
  if (testObj(code)) {
    //check to see if this is a WKT string
    if (testDef(code)) {
      return _defs__WEBPACK_IMPORTED_MODULE_0__["default"][code];
    }
    if (testWKT(code)) {
      var out = (0,wkt_parser__WEBPACK_IMPORTED_MODULE_1__["default"])(code);
      // test of spetial case, due to this being a very common and often malformed
      if (checkMercator(out)) {
        return _defs__WEBPACK_IMPORTED_MODULE_0__["default"]["EPSG:3857"];
      }
      var maybeProjStr = checkProjStr(out);
      if (maybeProjStr) {
        return (0,_projString__WEBPACK_IMPORTED_MODULE_2__["default"])(maybeProjStr);
      }
      return out;
    }
    if (testProj(code)) {
      return (0,_projString__WEBPACK_IMPORTED_MODULE_2__["default"])(code);
    }
  }else{
    return code;
  }
}

/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (parse);


/***/ }),

/***/ "./node_modules/proj4/lib/projString.js":
/*!**********************************************!*\
  !*** ./node_modules/proj4/lib/projString.js ***!
  \**********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _constants_PrimeMeridian__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./constants/PrimeMeridian */ "./node_modules/proj4/lib/constants/PrimeMeridian.js");
/* harmony import */ var _constants_units__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./constants/units */ "./node_modules/proj4/lib/constants/units.js");
/* harmony import */ var _match__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./match */ "./node_modules/proj4/lib/match.js");





/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(defData) {
  var self = {};
  var paramObj = defData.split('+').map(function(v) {
    return v.trim();
  }).filter(function(a) {
    return a;
  }).reduce(function(p, a) {
    var split = a.split('=');
    split.push(true);
    p[split[0].toLowerCase()] = split[1];
    return p;
  }, {});
  var paramName, paramVal, paramOutname;
  var params = {
    proj: 'projName',
    datum: 'datumCode',
    rf: function(v) {
      self.rf = parseFloat(v);
    },
    lat_0: function(v) {
      self.lat0 = v * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    lat_1: function(v) {
      self.lat1 = v * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    lat_2: function(v) {
      self.lat2 = v * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    lat_ts: function(v) {
      self.lat_ts = v * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    lon_0: function(v) {
      self.long0 = v * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    lon_1: function(v) {
      self.long1 = v * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    lon_2: function(v) {
      self.long2 = v * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    alpha: function(v) {
      self.alpha = parseFloat(v) * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    gamma: function(v) {
      self.rectified_grid_angle = parseFloat(v);
    },
    lonc: function(v) {
      self.longc = v * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    x_0: function(v) {
      self.x0 = parseFloat(v);
    },
    y_0: function(v) {
      self.y0 = parseFloat(v);
    },
    k_0: function(v) {
      self.k0 = parseFloat(v);
    },
    k: function(v) {
      self.k0 = parseFloat(v);
    },
    a: function(v) {
      self.a = parseFloat(v);
    },
    b: function(v) {
      self.b = parseFloat(v);
    },
    r_a: function() {
      self.R_A = true;
    },
    zone: function(v) {
      self.zone = parseInt(v, 10);
    },
    south: function() {
      self.utmSouth = true;
    },
    towgs84: function(v) {
      self.datum_params = v.split(",").map(function(a) {
        return parseFloat(a);
      });
    },
    to_meter: function(v) {
      self.to_meter = parseFloat(v);
    },
    units: function(v) {
      self.units = v;
      var unit = (0,_match__WEBPACK_IMPORTED_MODULE_3__["default"])(_constants_units__WEBPACK_IMPORTED_MODULE_2__["default"], v);
      if (unit) {
        self.to_meter = unit.to_meter;
      }
    },
    from_greenwich: function(v) {
      self.from_greenwich = v * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    pm: function(v) {
      var pm = (0,_match__WEBPACK_IMPORTED_MODULE_3__["default"])(_constants_PrimeMeridian__WEBPACK_IMPORTED_MODULE_1__["default"], v);
      self.from_greenwich = (pm ? pm : parseFloat(v)) * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    },
    nadgrids: function(v) {
      if (v === '@null') {
        self.datumCode = 'none';
      }
      else {
        self.nadgrids = v;
      }
    },
    axis: function(v) {
      var legalAxis = "ewnsud";
      if (v.length === 3 && legalAxis.indexOf(v.substr(0, 1)) !== -1 && legalAxis.indexOf(v.substr(1, 1)) !== -1 && legalAxis.indexOf(v.substr(2, 1)) !== -1) {
        self.axis = v;
      }
    },
    approx: function() {
      self.approx = true;
    }
  };
  for (paramName in paramObj) {
    paramVal = paramObj[paramName];
    if (paramName in params) {
      paramOutname = params[paramName];
      if (typeof paramOutname === 'function') {
        paramOutname(paramVal);
      }
      else {
        self[paramOutname] = paramVal;
      }
    }
    else {
      self[paramName] = paramVal;
    }
  }
  if(typeof self.datumCode === 'string' && self.datumCode !== "WGS84"){
    self.datumCode = self.datumCode.toLowerCase();
  }
  return self;
}


/***/ }),

/***/ "./node_modules/proj4/lib/projections.js":
/*!***********************************************!*\
  !*** ./node_modules/proj4/lib/projections.js ***!
  \***********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "add": () => (/* binding */ add),
/* harmony export */   "get": () => (/* binding */ get),
/* harmony export */   "start": () => (/* binding */ start),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _projections_merc__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./projections/merc */ "./node_modules/proj4/lib/projections/merc.js");
/* harmony import */ var _projections_longlat__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./projections/longlat */ "./node_modules/proj4/lib/projections/longlat.js");


var projs = [_projections_merc__WEBPACK_IMPORTED_MODULE_0__["default"], _projections_longlat__WEBPACK_IMPORTED_MODULE_1__["default"]];
var names = {};
var projStore = [];

function add(proj, i) {
  var len = projStore.length;
  if (!proj.names) {
    console.log(i);
    return true;
  }
  projStore[len] = proj;
  proj.names.forEach(function(n) {
    names[n.toLowerCase()] = len;
  });
  return this;
}



function get(name) {
  if (!name) {
    return false;
  }
  var n = name.toLowerCase();
  if (typeof names[n] !== 'undefined' && projStore[names[n]]) {
    return projStore[names[n]];
  }
}

function start() {
  projs.forEach(add);
}
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  start: start,
  add: add,
  get: get
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/aea.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/projections/aea.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "phi1z": () => (/* binding */ phi1z),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_msfnz__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/msfnz */ "./node_modules/proj4/lib/common/msfnz.js");
/* harmony import */ var _common_qsfnz__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/qsfnz */ "./node_modules/proj4/lib/common/qsfnz.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_asinz__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/asinz */ "./node_modules/proj4/lib/common/asinz.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");






function init() {

  if (Math.abs(this.lat1 + this.lat2) < _constants_values__WEBPACK_IMPORTED_MODULE_4__.EPSLN) {
    return;
  }
  this.temp = this.b / this.a;
  this.es = 1 - Math.pow(this.temp, 2);
  this.e3 = Math.sqrt(this.es);

  this.sin_po = Math.sin(this.lat1);
  this.cos_po = Math.cos(this.lat1);
  this.t1 = this.sin_po;
  this.con = this.sin_po;
  this.ms1 = (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e3, this.sin_po, this.cos_po);
  this.qs1 = (0,_common_qsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e3, this.sin_po, this.cos_po);

  this.sin_po = Math.sin(this.lat2);
  this.cos_po = Math.cos(this.lat2);
  this.t2 = this.sin_po;
  this.ms2 = (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e3, this.sin_po, this.cos_po);
  this.qs2 = (0,_common_qsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e3, this.sin_po, this.cos_po);

  this.sin_po = Math.sin(this.lat0);
  this.cos_po = Math.cos(this.lat0);
  this.t3 = this.sin_po;
  this.qs0 = (0,_common_qsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e3, this.sin_po, this.cos_po);

  if (Math.abs(this.lat1 - this.lat2) > _constants_values__WEBPACK_IMPORTED_MODULE_4__.EPSLN) {
    this.ns0 = (this.ms1 * this.ms1 - this.ms2 * this.ms2) / (this.qs2 - this.qs1);
  }
  else {
    this.ns0 = this.con;
  }
  this.c = this.ms1 * this.ms1 + this.ns0 * this.qs1;
  this.rh = this.a * Math.sqrt(this.c - this.ns0 * this.qs0) / this.ns0;
}

/* Albers Conical Equal Area forward equations--mapping lat,long to x,y
  -------------------------------------------------------------------*/
function forward(p) {

  var lon = p.x;
  var lat = p.y;

  this.sin_phi = Math.sin(lat);
  this.cos_phi = Math.cos(lat);

  var qs = (0,_common_qsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e3, this.sin_phi, this.cos_phi);
  var rh1 = this.a * Math.sqrt(this.c - this.ns0 * qs) / this.ns0;
  var theta = this.ns0 * (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_2__["default"])(lon - this.long0);
  var x = rh1 * Math.sin(theta) + this.x0;
  var y = this.rh - rh1 * Math.cos(theta) + this.y0;

  p.x = x;
  p.y = y;
  return p;
}

function inverse(p) {
  var rh1, qs, con, theta, lon, lat;

  p.x -= this.x0;
  p.y = this.rh - p.y + this.y0;
  if (this.ns0 >= 0) {
    rh1 = Math.sqrt(p.x * p.x + p.y * p.y);
    con = 1;
  }
  else {
    rh1 = -Math.sqrt(p.x * p.x + p.y * p.y);
    con = -1;
  }
  theta = 0;
  if (rh1 !== 0) {
    theta = Math.atan2(con * p.x, con * p.y);
  }
  con = rh1 * this.ns0 / this.a;
  if (this.sphere) {
    lat = Math.asin((this.c - con * con) / (2 * this.ns0));
  }
  else {
    qs = (this.c - con * con) / this.ns0;
    lat = this.phi1z(this.e3, qs);
  }

  lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_2__["default"])(theta / this.ns0 + this.long0);
  p.x = lon;
  p.y = lat;
  return p;
}

/* Function to compute phi1, the latitude for the inverse of the
   Albers Conical Equal-Area projection.
-------------------------------------------*/
function phi1z(eccent, qs) {
  var sinphi, cosphi, con, com, dphi;
  var phi = (0,_common_asinz__WEBPACK_IMPORTED_MODULE_3__["default"])(0.5 * qs);
  if (eccent < _constants_values__WEBPACK_IMPORTED_MODULE_4__.EPSLN) {
    return phi;
  }

  var eccnts = eccent * eccent;
  for (var i = 1; i <= 25; i++) {
    sinphi = Math.sin(phi);
    cosphi = Math.cos(phi);
    con = eccent * sinphi;
    com = 1 - con * con;
    dphi = 0.5 * com * com / cosphi * (qs / (1 - eccnts) - sinphi / com + 0.5 / eccent * Math.log((1 - con) / (1 + con)));
    phi = phi + dphi;
    if (Math.abs(dphi) <= 1e-7) {
      return phi;
    }
  }
  return null;
}

var names = ["Albers_Conic_Equal_Area", "Albers", "aea"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names,
  phi1z: phi1z
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/aeqd.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/aeqd.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _common_mlfn__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/mlfn */ "./node_modules/proj4/lib/common/mlfn.js");
/* harmony import */ var _common_e0fn__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/e0fn */ "./node_modules/proj4/lib/common/e0fn.js");
/* harmony import */ var _common_e1fn__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../common/e1fn */ "./node_modules/proj4/lib/common/e1fn.js");
/* harmony import */ var _common_e2fn__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../common/e2fn */ "./node_modules/proj4/lib/common/e2fn.js");
/* harmony import */ var _common_e3fn__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../common/e3fn */ "./node_modules/proj4/lib/common/e3fn.js");
/* harmony import */ var _common_gN__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../common/gN */ "./node_modules/proj4/lib/common/gN.js");
/* harmony import */ var _common_asinz__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../common/asinz */ "./node_modules/proj4/lib/common/asinz.js");
/* harmony import */ var _common_imlfn__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ../common/imlfn */ "./node_modules/proj4/lib/common/imlfn.js");














function init() {
  this.sin_p12 = Math.sin(this.lat0);
  this.cos_p12 = Math.cos(this.lat0);
}

function forward(p) {
  var lon = p.x;
  var lat = p.y;
  var sinphi = Math.sin(p.y);
  var cosphi = Math.cos(p.y);
  var dlon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);
  var e0, e1, e2, e3, Mlp, Ml, tanphi, Nl1, Nl, psi, Az, G, H, GH, Hs, c, kp, cos_c, s, s2, s3, s4, s5;
  if (this.sphere) {
    if (Math.abs(this.sin_p12 - 1) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
      //North Pole case
      p.x = this.x0 + this.a * (_constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI - lat) * Math.sin(dlon);
      p.y = this.y0 - this.a * (_constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI - lat) * Math.cos(dlon);
      return p;
    }
    else if (Math.abs(this.sin_p12 + 1) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
      //South Pole case
      p.x = this.x0 + this.a * (_constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI + lat) * Math.sin(dlon);
      p.y = this.y0 + this.a * (_constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI + lat) * Math.cos(dlon);
      return p;
    }
    else {
      //default case
      cos_c = this.sin_p12 * sinphi + this.cos_p12 * cosphi * Math.cos(dlon);
      c = Math.acos(cos_c);
      kp = c ? c / Math.sin(c) : 1;
      p.x = this.x0 + this.a * kp * cosphi * Math.sin(dlon);
      p.y = this.y0 + this.a * kp * (this.cos_p12 * sinphi - this.sin_p12 * cosphi * Math.cos(dlon));
      return p;
    }
  }
  else {
    e0 = (0,_common_e0fn__WEBPACK_IMPORTED_MODULE_3__["default"])(this.es);
    e1 = (0,_common_e1fn__WEBPACK_IMPORTED_MODULE_4__["default"])(this.es);
    e2 = (0,_common_e2fn__WEBPACK_IMPORTED_MODULE_5__["default"])(this.es);
    e3 = (0,_common_e3fn__WEBPACK_IMPORTED_MODULE_6__["default"])(this.es);
    if (Math.abs(this.sin_p12 - 1) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
      //North Pole case
      Mlp = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_2__["default"])(e0, e1, e2, e3, _constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI);
      Ml = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_2__["default"])(e0, e1, e2, e3, lat);
      p.x = this.x0 + (Mlp - Ml) * Math.sin(dlon);
      p.y = this.y0 - (Mlp - Ml) * Math.cos(dlon);
      return p;
    }
    else if (Math.abs(this.sin_p12 + 1) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
      //South Pole case
      Mlp = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_2__["default"])(e0, e1, e2, e3, _constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI);
      Ml = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_2__["default"])(e0, e1, e2, e3, lat);
      p.x = this.x0 + (Mlp + Ml) * Math.sin(dlon);
      p.y = this.y0 + (Mlp + Ml) * Math.cos(dlon);
      return p;
    }
    else {
      //Default case
      tanphi = sinphi / cosphi;
      Nl1 = (0,_common_gN__WEBPACK_IMPORTED_MODULE_7__["default"])(this.a, this.e, this.sin_p12);
      Nl = (0,_common_gN__WEBPACK_IMPORTED_MODULE_7__["default"])(this.a, this.e, sinphi);
      psi = Math.atan((1 - this.es) * tanphi + this.es * Nl1 * this.sin_p12 / (Nl * cosphi));
      Az = Math.atan2(Math.sin(dlon), this.cos_p12 * Math.tan(psi) - this.sin_p12 * Math.cos(dlon));
      if (Az === 0) {
        s = Math.asin(this.cos_p12 * Math.sin(psi) - this.sin_p12 * Math.cos(psi));
      }
      else if (Math.abs(Math.abs(Az) - Math.PI) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
        s = -Math.asin(this.cos_p12 * Math.sin(psi) - this.sin_p12 * Math.cos(psi));
      }
      else {
        s = Math.asin(Math.sin(dlon) * Math.cos(psi) / Math.sin(Az));
      }
      G = this.e * this.sin_p12 / Math.sqrt(1 - this.es);
      H = this.e * this.cos_p12 * Math.cos(Az) / Math.sqrt(1 - this.es);
      GH = G * H;
      Hs = H * H;
      s2 = s * s;
      s3 = s2 * s;
      s4 = s3 * s;
      s5 = s4 * s;
      c = Nl1 * s * (1 - s2 * Hs * (1 - Hs) / 6 + s3 / 8 * GH * (1 - 2 * Hs) + s4 / 120 * (Hs * (4 - 7 * Hs) - 3 * G * G * (1 - 7 * Hs)) - s5 / 48 * GH);
      p.x = this.x0 + c * Math.sin(Az);
      p.y = this.y0 + c * Math.cos(Az);
      return p;
    }
  }


}

function inverse(p) {
  p.x -= this.x0;
  p.y -= this.y0;
  var rh, z, sinz, cosz, lon, lat, con, e0, e1, e2, e3, Mlp, M, N1, psi, Az, cosAz, tmp, A, B, D, Ee, F, sinpsi;
  if (this.sphere) {
    rh = Math.sqrt(p.x * p.x + p.y * p.y);
    if (rh > (2 * _constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI * this.a)) {
      return;
    }
    z = rh / this.a;

    sinz = Math.sin(z);
    cosz = Math.cos(z);

    lon = this.long0;
    if (Math.abs(rh) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
      lat = this.lat0;
    }
    else {
      lat = (0,_common_asinz__WEBPACK_IMPORTED_MODULE_8__["default"])(cosz * this.sin_p12 + (p.y * sinz * this.cos_p12) / rh);
      con = Math.abs(this.lat0) - _constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI;
      if (Math.abs(con) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
        if (this.lat0 >= 0) {
          lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + Math.atan2(p.x, - p.y));
        }
        else {
          lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 - Math.atan2(-p.x, p.y));
        }
      }
      else {
        /*con = cosz - this.sin_p12 * Math.sin(lat);
        if ((Math.abs(con) < EPSLN) && (Math.abs(p.x) < EPSLN)) {
          //no-op, just keep the lon value as is
        } else {
          var temp = Math.atan2((p.x * sinz * this.cos_p12), (con * rh));
          lon = adjust_lon(this.long0 + Math.atan2((p.x * sinz * this.cos_p12), (con * rh)));
        }*/
        lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + Math.atan2(p.x * sinz, rh * this.cos_p12 * cosz - p.y * this.sin_p12 * sinz));
      }
    }

    p.x = lon;
    p.y = lat;
    return p;
  }
  else {
    e0 = (0,_common_e0fn__WEBPACK_IMPORTED_MODULE_3__["default"])(this.es);
    e1 = (0,_common_e1fn__WEBPACK_IMPORTED_MODULE_4__["default"])(this.es);
    e2 = (0,_common_e2fn__WEBPACK_IMPORTED_MODULE_5__["default"])(this.es);
    e3 = (0,_common_e3fn__WEBPACK_IMPORTED_MODULE_6__["default"])(this.es);
    if (Math.abs(this.sin_p12 - 1) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
      //North pole case
      Mlp = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_2__["default"])(e0, e1, e2, e3, _constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI);
      rh = Math.sqrt(p.x * p.x + p.y * p.y);
      M = Mlp - rh;
      lat = (0,_common_imlfn__WEBPACK_IMPORTED_MODULE_9__["default"])(M / this.a, e0, e1, e2, e3);
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + Math.atan2(p.x, - 1 * p.y));
      p.x = lon;
      p.y = lat;
      return p;
    }
    else if (Math.abs(this.sin_p12 + 1) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
      //South pole case
      Mlp = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_2__["default"])(e0, e1, e2, e3, _constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI);
      rh = Math.sqrt(p.x * p.x + p.y * p.y);
      M = rh - Mlp;

      lat = (0,_common_imlfn__WEBPACK_IMPORTED_MODULE_9__["default"])(M / this.a, e0, e1, e2, e3);
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + Math.atan2(p.x, p.y));
      p.x = lon;
      p.y = lat;
      return p;
    }
    else {
      //default case
      rh = Math.sqrt(p.x * p.x + p.y * p.y);
      Az = Math.atan2(p.x, p.y);
      N1 = (0,_common_gN__WEBPACK_IMPORTED_MODULE_7__["default"])(this.a, this.e, this.sin_p12);
      cosAz = Math.cos(Az);
      tmp = this.e * this.cos_p12 * cosAz;
      A = -tmp * tmp / (1 - this.es);
      B = 3 * this.es * (1 - A) * this.sin_p12 * this.cos_p12 * cosAz / (1 - this.es);
      D = rh / N1;
      Ee = D - A * (1 + A) * Math.pow(D, 3) / 6 - B * (1 + 3 * A) * Math.pow(D, 4) / 24;
      F = 1 - A * Ee * Ee / 2 - D * Ee * Ee * Ee / 6;
      psi = Math.asin(this.sin_p12 * Math.cos(Ee) + this.cos_p12 * Math.sin(Ee) * cosAz);
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + Math.asin(Math.sin(Az) * Math.sin(Ee) / Math.cos(psi)));
      sinpsi = Math.sin(psi);
      lat = Math.atan2((sinpsi - this.es * F * this.sin_p12) * Math.tan(psi), sinpsi * (1 - this.es));
      p.x = lon;
      p.y = lat;
      return p;
    }
  }

}

var names = ["Azimuthal_Equidistant", "aeqd"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/cass.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/cass.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_mlfn__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/mlfn */ "./node_modules/proj4/lib/common/mlfn.js");
/* harmony import */ var _common_e0fn__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/e0fn */ "./node_modules/proj4/lib/common/e0fn.js");
/* harmony import */ var _common_e1fn__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/e1fn */ "./node_modules/proj4/lib/common/e1fn.js");
/* harmony import */ var _common_e2fn__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/e2fn */ "./node_modules/proj4/lib/common/e2fn.js");
/* harmony import */ var _common_e3fn__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../common/e3fn */ "./node_modules/proj4/lib/common/e3fn.js");
/* harmony import */ var _common_gN__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../common/gN */ "./node_modules/proj4/lib/common/gN.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_adjust_lat__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../common/adjust_lat */ "./node_modules/proj4/lib/common/adjust_lat.js");
/* harmony import */ var _common_imlfn__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../common/imlfn */ "./node_modules/proj4/lib/common/imlfn.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");











function init() {
  if (!this.sphere) {
    this.e0 = (0,_common_e0fn__WEBPACK_IMPORTED_MODULE_1__["default"])(this.es);
    this.e1 = (0,_common_e1fn__WEBPACK_IMPORTED_MODULE_2__["default"])(this.es);
    this.e2 = (0,_common_e2fn__WEBPACK_IMPORTED_MODULE_3__["default"])(this.es);
    this.e3 = (0,_common_e3fn__WEBPACK_IMPORTED_MODULE_4__["default"])(this.es);
    this.ml0 = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e0, this.e1, this.e2, this.e3, this.lat0);
  }
}

/* Cassini forward equations--mapping lat,long to x,y
  -----------------------------------------------------------------------*/
function forward(p) {

  /* Forward equations
      -----------------*/
  var x, y;
  var lam = p.x;
  var phi = p.y;
  lam = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_6__["default"])(lam - this.long0);

  if (this.sphere) {
    x = this.a * Math.asin(Math.cos(phi) * Math.sin(lam));
    y = this.a * (Math.atan2(Math.tan(phi), Math.cos(lam)) - this.lat0);
  }
  else {
    //ellipsoid
    var sinphi = Math.sin(phi);
    var cosphi = Math.cos(phi);
    var nl = (0,_common_gN__WEBPACK_IMPORTED_MODULE_5__["default"])(this.a, this.e, sinphi);
    var tl = Math.tan(phi) * Math.tan(phi);
    var al = lam * Math.cos(phi);
    var asq = al * al;
    var cl = this.es * cosphi * cosphi / (1 - this.es);
    var ml = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e0, this.e1, this.e2, this.e3, phi);

    x = nl * al * (1 - asq * tl * (1 / 6 - (8 - tl + 8 * cl) * asq / 120));
    y = ml - this.ml0 + nl * sinphi / cosphi * asq * (0.5 + (5 - tl + 6 * cl) * asq / 24);


  }

  p.x = x + this.x0;
  p.y = y + this.y0;
  return p;
}

/* Inverse equations
  -----------------*/
function inverse(p) {
  p.x -= this.x0;
  p.y -= this.y0;
  var x = p.x / this.a;
  var y = p.y / this.a;
  var phi, lam;

  if (this.sphere) {
    var dd = y + this.lat0;
    phi = Math.asin(Math.sin(dd) * Math.cos(x));
    lam = Math.atan2(Math.tan(x), Math.cos(dd));
  }
  else {
    /* ellipsoid */
    var ml1 = this.ml0 / this.a + y;
    var phi1 = (0,_common_imlfn__WEBPACK_IMPORTED_MODULE_8__["default"])(ml1, this.e0, this.e1, this.e2, this.e3);
    if (Math.abs(Math.abs(phi1) - _constants_values__WEBPACK_IMPORTED_MODULE_9__.HALF_PI) <= _constants_values__WEBPACK_IMPORTED_MODULE_9__.EPSLN) {
      p.x = this.long0;
      p.y = _constants_values__WEBPACK_IMPORTED_MODULE_9__.HALF_PI;
      if (y < 0) {
        p.y *= -1;
      }
      return p;
    }
    var nl1 = (0,_common_gN__WEBPACK_IMPORTED_MODULE_5__["default"])(this.a, this.e, Math.sin(phi1));

    var rl1 = nl1 * nl1 * nl1 / this.a / this.a * (1 - this.es);
    var tl1 = Math.pow(Math.tan(phi1), 2);
    var dl = x * this.a / nl1;
    var dsq = dl * dl;
    phi = phi1 - nl1 * Math.tan(phi1) / rl1 * dl * dl * (0.5 - (1 + 3 * tl1) * dl * dl / 24);
    lam = dl * (1 - dsq * (tl1 / 3 + (1 + 3 * tl1) * tl1 * dsq / 15)) / Math.cos(phi1);

  }

  p.x = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_6__["default"])(lam + this.long0);
  p.y = (0,_common_adjust_lat__WEBPACK_IMPORTED_MODULE_7__["default"])(phi);
  return p;

}

var names = ["Cassini", "Cassini_Soldner", "cass"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/cea.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/projections/cea.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_qsfnz__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/qsfnz */ "./node_modules/proj4/lib/common/qsfnz.js");
/* harmony import */ var _common_msfnz__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/msfnz */ "./node_modules/proj4/lib/common/msfnz.js");
/* harmony import */ var _common_iqsfnz__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/iqsfnz */ "./node_modules/proj4/lib/common/iqsfnz.js");





/*
  reference:
    "Cartographic Projection Procedures for the UNIX Environment-
    A User's Manual" by Gerald I. Evenden,
    USGS Open File Report 90-284and Release 4 Interim Reports (2003)
*/
function init() {
  //no-op
  if (!this.sphere) {
    this.k0 = (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_2__["default"])(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts));
  }
}

/* Cylindrical Equal Area forward equations--mapping lat,long to x,y
    ------------------------------------------------------------*/
function forward(p) {
  var lon = p.x;
  var lat = p.y;
  var x, y;
  /* Forward equations
      -----------------*/
  var dlon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);
  if (this.sphere) {
    x = this.x0 + this.a * dlon * Math.cos(this.lat_ts);
    y = this.y0 + this.a * Math.sin(lat) / Math.cos(this.lat_ts);
  }
  else {
    var qs = (0,_common_qsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e, Math.sin(lat));
    x = this.x0 + this.a * this.k0 * dlon;
    y = this.y0 + this.a * qs * 0.5 / this.k0;
  }

  p.x = x;
  p.y = y;
  return p;
}

/* Cylindrical Equal Area inverse equations--mapping x,y to lat/long
    ------------------------------------------------------------*/
function inverse(p) {
  p.x -= this.x0;
  p.y -= this.y0;
  var lon, lat;

  if (this.sphere) {
    lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + (p.x / this.a) / Math.cos(this.lat_ts));
    lat = Math.asin((p.y / this.a) * Math.cos(this.lat_ts));
  }
  else {
    lat = (0,_common_iqsfnz__WEBPACK_IMPORTED_MODULE_3__["default"])(this.e, 2 * p.y * this.k0 / this.a);
    lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + p.x / (this.a * this.k0));
  }

  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["cea"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/eqc.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/projections/eqc.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_adjust_lat__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/adjust_lat */ "./node_modules/proj4/lib/common/adjust_lat.js");



function init() {

  this.x0 = this.x0 || 0;
  this.y0 = this.y0 || 0;
  this.lat0 = this.lat0 || 0;
  this.long0 = this.long0 || 0;
  this.lat_ts = this.lat_ts || 0;
  this.title = this.title || "Equidistant Cylindrical (Plate Carre)";

  this.rc = Math.cos(this.lat_ts);
}

// forward equations--mapping lat,long to x,y
// -----------------------------------------------------------------
function forward(p) {

  var lon = p.x;
  var lat = p.y;

  var dlon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);
  var dlat = (0,_common_adjust_lat__WEBPACK_IMPORTED_MODULE_1__["default"])(lat - this.lat0);
  p.x = this.x0 + (this.a * dlon * this.rc);
  p.y = this.y0 + (this.a * dlat);
  return p;
}

// inverse equations--mapping x,y to lat/long
// -----------------------------------------------------------------
function inverse(p) {

  var x = p.x;
  var y = p.y;

  p.x = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + ((x - this.x0) / (this.a * this.rc)));
  p.y = (0,_common_adjust_lat__WEBPACK_IMPORTED_MODULE_1__["default"])(this.lat0 + ((y - this.y0) / (this.a)));
  return p;
}

var names = ["Equirectangular", "Equidistant_Cylindrical", "eqc"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/eqdc.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/eqdc.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_e0fn__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/e0fn */ "./node_modules/proj4/lib/common/e0fn.js");
/* harmony import */ var _common_e1fn__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/e1fn */ "./node_modules/proj4/lib/common/e1fn.js");
/* harmony import */ var _common_e2fn__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/e2fn */ "./node_modules/proj4/lib/common/e2fn.js");
/* harmony import */ var _common_e3fn__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/e3fn */ "./node_modules/proj4/lib/common/e3fn.js");
/* harmony import */ var _common_msfnz__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../common/msfnz */ "./node_modules/proj4/lib/common/msfnz.js");
/* harmony import */ var _common_mlfn__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../common/mlfn */ "./node_modules/proj4/lib/common/mlfn.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_adjust_lat__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../common/adjust_lat */ "./node_modules/proj4/lib/common/adjust_lat.js");
/* harmony import */ var _common_imlfn__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../common/imlfn */ "./node_modules/proj4/lib/common/imlfn.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");











function init() {

  /* Place parameters in static storage for common use
      -------------------------------------------------*/
  // Standard Parallels cannot be equal and on opposite sides of the equator
  if (Math.abs(this.lat1 + this.lat2) < _constants_values__WEBPACK_IMPORTED_MODULE_9__.EPSLN) {
    return;
  }
  this.lat2 = this.lat2 || this.lat1;
  this.temp = this.b / this.a;
  this.es = 1 - Math.pow(this.temp, 2);
  this.e = Math.sqrt(this.es);
  this.e0 = (0,_common_e0fn__WEBPACK_IMPORTED_MODULE_0__["default"])(this.es);
  this.e1 = (0,_common_e1fn__WEBPACK_IMPORTED_MODULE_1__["default"])(this.es);
  this.e2 = (0,_common_e2fn__WEBPACK_IMPORTED_MODULE_2__["default"])(this.es);
  this.e3 = (0,_common_e3fn__WEBPACK_IMPORTED_MODULE_3__["default"])(this.es);

  this.sinphi = Math.sin(this.lat1);
  this.cosphi = Math.cos(this.lat1);

  this.ms1 = (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_4__["default"])(this.e, this.sinphi, this.cosphi);
  this.ml1 = (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_5__["default"])(this.e0, this.e1, this.e2, this.e3, this.lat1);

  if (Math.abs(this.lat1 - this.lat2) < _constants_values__WEBPACK_IMPORTED_MODULE_9__.EPSLN) {
    this.ns = this.sinphi;
  }
  else {
    this.sinphi = Math.sin(this.lat2);
    this.cosphi = Math.cos(this.lat2);
    this.ms2 = (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_4__["default"])(this.e, this.sinphi, this.cosphi);
    this.ml2 = (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_5__["default"])(this.e0, this.e1, this.e2, this.e3, this.lat2);
    this.ns = (this.ms1 - this.ms2) / (this.ml2 - this.ml1);
  }
  this.g = this.ml1 + this.ms1 / this.ns;
  this.ml0 = (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_5__["default"])(this.e0, this.e1, this.e2, this.e3, this.lat0);
  this.rh = this.a * (this.g - this.ml0);
}

/* Equidistant Conic forward equations--mapping lat,long to x,y
  -----------------------------------------------------------*/
function forward(p) {
  var lon = p.x;
  var lat = p.y;
  var rh1;

  /* Forward equations
      -----------------*/
  if (this.sphere) {
    rh1 = this.a * (this.g - lat);
  }
  else {
    var ml = (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_5__["default"])(this.e0, this.e1, this.e2, this.e3, lat);
    rh1 = this.a * (this.g - ml);
  }
  var theta = this.ns * (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_6__["default"])(lon - this.long0);
  var x = this.x0 + rh1 * Math.sin(theta);
  var y = this.y0 + this.rh - rh1 * Math.cos(theta);
  p.x = x;
  p.y = y;
  return p;
}

/* Inverse equations
  -----------------*/
function inverse(p) {
  p.x -= this.x0;
  p.y = this.rh - p.y + this.y0;
  var con, rh1, lat, lon;
  if (this.ns >= 0) {
    rh1 = Math.sqrt(p.x * p.x + p.y * p.y);
    con = 1;
  }
  else {
    rh1 = -Math.sqrt(p.x * p.x + p.y * p.y);
    con = -1;
  }
  var theta = 0;
  if (rh1 !== 0) {
    theta = Math.atan2(con * p.x, con * p.y);
  }

  if (this.sphere) {
    lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_6__["default"])(this.long0 + theta / this.ns);
    lat = (0,_common_adjust_lat__WEBPACK_IMPORTED_MODULE_7__["default"])(this.g - rh1 / this.a);
    p.x = lon;
    p.y = lat;
    return p;
  }
  else {
    var ml = this.g - rh1 / this.a;
    lat = (0,_common_imlfn__WEBPACK_IMPORTED_MODULE_8__["default"])(ml, this.e0, this.e1, this.e2, this.e3);
    lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_6__["default"])(this.long0 + theta / this.ns);
    p.x = lon;
    p.y = lat;
    return p;
  }

}

var names = ["Equidistant_Conic", "eqdc"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/etmerc.js":
/*!******************************************************!*\
  !*** ./node_modules/proj4/lib/projections/etmerc.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _projections_tmerc__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../projections/tmerc */ "./node_modules/proj4/lib/projections/tmerc.js");
/* harmony import */ var _common_sinh__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/sinh */ "./node_modules/proj4/lib/common/sinh.js");
/* harmony import */ var _common_hypot__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/hypot */ "./node_modules/proj4/lib/common/hypot.js");
/* harmony import */ var _common_asinhy__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/asinhy */ "./node_modules/proj4/lib/common/asinhy.js");
/* harmony import */ var _common_gatg__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../common/gatg */ "./node_modules/proj4/lib/common/gatg.js");
/* harmony import */ var _common_clens__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../common/clens */ "./node_modules/proj4/lib/common/clens.js");
/* harmony import */ var _common_clens_cmplx__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../common/clens_cmplx */ "./node_modules/proj4/lib/common/clens_cmplx.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
// Heavily based on this etmerc projection implementation
// https://github.com/mbloch/mapshaper-proj/blob/master/src/projections/etmerc.js










function init() {
  if (!this.approx && (isNaN(this.es) || this.es <= 0)) {
    throw new Error('Incorrect elliptical usage. Try using the +approx option in the proj string, or PROJECTION["Fast_Transverse_Mercator"] in the WKT.');
  }
  if (this.approx) {
    // When '+approx' is set, use tmerc instead
    _projections_tmerc__WEBPACK_IMPORTED_MODULE_0__["default"].init.apply(this);
    this.forward = _projections_tmerc__WEBPACK_IMPORTED_MODULE_0__["default"].forward;
    this.inverse = _projections_tmerc__WEBPACK_IMPORTED_MODULE_0__["default"].inverse;
  }

  this.x0 = this.x0 !== undefined ? this.x0 : 0;
  this.y0 = this.y0 !== undefined ? this.y0 : 0;
  this.long0 = this.long0 !== undefined ? this.long0 : 0;
  this.lat0 = this.lat0 !== undefined ? this.lat0 : 0;

  this.cgb = [];
  this.cbg = [];
  this.utg = [];
  this.gtu = [];

  var f = this.es / (1 + Math.sqrt(1 - this.es));
  var n = f / (2 - f);
  var np = n;

  this.cgb[0] = n * (2 + n * (-2 / 3 + n * (-2 + n * (116 / 45 + n * (26 / 45 + n * (-2854 / 675 ))))));
  this.cbg[0] = n * (-2 + n * ( 2 / 3 + n * ( 4 / 3 + n * (-82 / 45 + n * (32 / 45 + n * (4642 / 4725))))));

  np = np * n;
  this.cgb[1] = np * (7 / 3 + n * (-8 / 5 + n * (-227 / 45 + n * (2704 / 315 + n * (2323 / 945)))));
  this.cbg[1] = np * (5 / 3 + n * (-16 / 15 + n * ( -13 / 9 + n * (904 / 315 + n * (-1522 / 945)))));

  np = np * n;
  this.cgb[2] = np * (56 / 15 + n * (-136 / 35 + n * (-1262 / 105 + n * (73814 / 2835))));
  this.cbg[2] = np * (-26 / 15 + n * (34 / 21 + n * (8 / 5 + n * (-12686 / 2835))));

  np = np * n;
  this.cgb[3] = np * (4279 / 630 + n * (-332 / 35 + n * (-399572 / 14175)));
  this.cbg[3] = np * (1237 / 630 + n * (-12 / 5 + n * ( -24832 / 14175)));

  np = np * n;
  this.cgb[4] = np * (4174 / 315 + n * (-144838 / 6237));
  this.cbg[4] = np * (-734 / 315 + n * (109598 / 31185));

  np = np * n;
  this.cgb[5] = np * (601676 / 22275);
  this.cbg[5] = np * (444337 / 155925);

  np = Math.pow(n, 2);
  this.Qn = this.k0 / (1 + n) * (1 + np * (1 / 4 + np * (1 / 64 + np / 256)));

  this.utg[0] = n * (-0.5 + n * ( 2 / 3 + n * (-37 / 96 + n * ( 1 / 360 + n * (81 / 512 + n * (-96199 / 604800))))));
  this.gtu[0] = n * (0.5 + n * (-2 / 3 + n * (5 / 16 + n * (41 / 180 + n * (-127 / 288 + n * (7891 / 37800))))));

  this.utg[1] = np * (-1 / 48 + n * (-1 / 15 + n * (437 / 1440 + n * (-46 / 105 + n * (1118711 / 3870720)))));
  this.gtu[1] = np * (13 / 48 + n * (-3 / 5 + n * (557 / 1440 + n * (281 / 630 + n * (-1983433 / 1935360)))));

  np = np * n;
  this.utg[2] = np * (-17 / 480 + n * (37 / 840 + n * (209 / 4480 + n * (-5569 / 90720 ))));
  this.gtu[2] = np * (61 / 240 + n * (-103 / 140 + n * (15061 / 26880 + n * (167603 / 181440))));

  np = np * n;
  this.utg[3] = np * (-4397 / 161280 + n * (11 / 504 + n * (830251 / 7257600)));
  this.gtu[3] = np * (49561 / 161280 + n * (-179 / 168 + n * (6601661 / 7257600)));

  np = np * n;
  this.utg[4] = np * (-4583 / 161280 + n * (108847 / 3991680));
  this.gtu[4] = np * (34729 / 80640 + n * (-3418889 / 1995840));

  np = np * n;
  this.utg[5] = np * (-20648693 / 638668800);
  this.gtu[5] = np * (212378941 / 319334400);

  var Z = (0,_common_gatg__WEBPACK_IMPORTED_MODULE_4__["default"])(this.cbg, this.lat0);
  this.Zb = -this.Qn * (Z + (0,_common_clens__WEBPACK_IMPORTED_MODULE_5__["default"])(this.gtu, 2 * Z));
}

function forward(p) {
  var Ce = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_7__["default"])(p.x - this.long0);
  var Cn = p.y;

  Cn = (0,_common_gatg__WEBPACK_IMPORTED_MODULE_4__["default"])(this.cbg, Cn);
  var sin_Cn = Math.sin(Cn);
  var cos_Cn = Math.cos(Cn);
  var sin_Ce = Math.sin(Ce);
  var cos_Ce = Math.cos(Ce);

  Cn = Math.atan2(sin_Cn, cos_Ce * cos_Cn);
  Ce = Math.atan2(sin_Ce * cos_Cn, (0,_common_hypot__WEBPACK_IMPORTED_MODULE_2__["default"])(sin_Cn, cos_Cn * cos_Ce));
  Ce = (0,_common_asinhy__WEBPACK_IMPORTED_MODULE_3__["default"])(Math.tan(Ce));

  var tmp = (0,_common_clens_cmplx__WEBPACK_IMPORTED_MODULE_6__["default"])(this.gtu, 2 * Cn, 2 * Ce);

  Cn = Cn + tmp[0];
  Ce = Ce + tmp[1];

  var x;
  var y;

  if (Math.abs(Ce) <= 2.623395162778) {
    x = this.a * (this.Qn * Ce) + this.x0;
    y = this.a * (this.Qn * Cn + this.Zb) + this.y0;
  }
  else {
    x = Infinity;
    y = Infinity;
  }

  p.x = x;
  p.y = y;

  return p;
}

function inverse(p) {
  var Ce = (p.x - this.x0) * (1 / this.a);
  var Cn = (p.y - this.y0) * (1 / this.a);

  Cn = (Cn - this.Zb) / this.Qn;
  Ce = Ce / this.Qn;

  var lon;
  var lat;

  if (Math.abs(Ce) <= 2.623395162778) {
    var tmp = (0,_common_clens_cmplx__WEBPACK_IMPORTED_MODULE_6__["default"])(this.utg, 2 * Cn, 2 * Ce);

    Cn = Cn + tmp[0];
    Ce = Ce + tmp[1];
    Ce = Math.atan((0,_common_sinh__WEBPACK_IMPORTED_MODULE_1__["default"])(Ce));

    var sin_Cn = Math.sin(Cn);
    var cos_Cn = Math.cos(Cn);
    var sin_Ce = Math.sin(Ce);
    var cos_Ce = Math.cos(Ce);

    Cn = Math.atan2(sin_Cn * cos_Ce, (0,_common_hypot__WEBPACK_IMPORTED_MODULE_2__["default"])(sin_Ce, cos_Ce * cos_Cn));
    Ce = Math.atan2(sin_Ce, cos_Ce * cos_Cn);

    lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_7__["default"])(Ce + this.long0);
    lat = (0,_common_gatg__WEBPACK_IMPORTED_MODULE_4__["default"])(this.cgb, Cn);
  }
  else {
    lon = Infinity;
    lat = Infinity;
  }

  p.x = lon;
  p.y = lat;

  return p;
}

var names = ["Extended_Transverse_Mercator", "Extended Transverse Mercator", "etmerc", "Transverse_Mercator", "Transverse Mercator", "tmerc"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/gauss.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/gauss.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_srat__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/srat */ "./node_modules/proj4/lib/common/srat.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");

var MAX_ITER = 20;


function init() {
  var sphi = Math.sin(this.lat0);
  var cphi = Math.cos(this.lat0);
  cphi *= cphi;
  this.rc = Math.sqrt(1 - this.es) / (1 - this.es * sphi * sphi);
  this.C = Math.sqrt(1 + this.es * cphi * cphi / (1 - this.es));
  this.phic0 = Math.asin(sphi / this.C);
  this.ratexp = 0.5 * this.C * this.e;
  this.K = Math.tan(0.5 * this.phic0 + _constants_values__WEBPACK_IMPORTED_MODULE_1__.FORTPI) / (Math.pow(Math.tan(0.5 * this.lat0 + _constants_values__WEBPACK_IMPORTED_MODULE_1__.FORTPI), this.C) * (0,_common_srat__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e * sphi, this.ratexp));
}

function forward(p) {
  var lon = p.x;
  var lat = p.y;

  p.y = 2 * Math.atan(this.K * Math.pow(Math.tan(0.5 * lat + _constants_values__WEBPACK_IMPORTED_MODULE_1__.FORTPI), this.C) * (0,_common_srat__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e * Math.sin(lat), this.ratexp)) - _constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI;
  p.x = this.C * lon;
  return p;
}

function inverse(p) {
  var DEL_TOL = 1e-14;
  var lon = p.x / this.C;
  var lat = p.y;
  var num = Math.pow(Math.tan(0.5 * lat + _constants_values__WEBPACK_IMPORTED_MODULE_1__.FORTPI) / this.K, 1 / this.C);
  for (var i = MAX_ITER; i > 0; --i) {
    lat = 2 * Math.atan(num * (0,_common_srat__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e * Math.sin(p.y), - 0.5 * this.e)) - _constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI;
    if (Math.abs(lat - p.y) < DEL_TOL) {
      break;
    }
    p.y = lat;
  }
  /* convergence failed */
  if (!i) {
    return null;
  }
  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["gauss"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/geocent.js":
/*!*******************************************************!*\
  !*** ./node_modules/proj4/lib/projections/geocent.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _datumUtils__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../datumUtils */ "./node_modules/proj4/lib/datumUtils.js");


function init() {
    this.name = 'geocent';

}

function forward(p) {
    var point = (0,_datumUtils__WEBPACK_IMPORTED_MODULE_0__.geodeticToGeocentric)(p, this.es, this.a);
    return point;
}

function inverse(p) {
    var point = (0,_datumUtils__WEBPACK_IMPORTED_MODULE_0__.geocentricToGeodetic)(p, this.es, this.a, this.b);
    return point;
}

var names = ["Geocentric", 'geocentric', "geocent", "Geocent"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
    init: init,
    forward: forward,
    inverse: inverse,
    names: names
});

/***/ }),

/***/ "./node_modules/proj4/lib/projections/gnom.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/gnom.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_asinz__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/asinz */ "./node_modules/proj4/lib/common/asinz.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");




/*
  reference:
    Wolfram Mathworld "Gnomonic Projection"
    http://mathworld.wolfram.com/GnomonicProjection.html
    Accessed: 12th November 2009
  */
function init() {

  /* Place parameters in static storage for common use
      -------------------------------------------------*/
  this.sin_p14 = Math.sin(this.lat0);
  this.cos_p14 = Math.cos(this.lat0);
  // Approximation for projecting points to the horizon (infinity)
  this.infinity_dist = 1000 * this.a;
  this.rc = 1;
}

/* Gnomonic forward equations--mapping lat,long to x,y
    ---------------------------------------------------*/
function forward(p) {
  var sinphi, cosphi; /* sin and cos value        */
  var dlon; /* delta longitude value      */
  var coslon; /* cos of longitude        */
  var ksp; /* scale factor          */
  var g;
  var x, y;
  var lon = p.x;
  var lat = p.y;
  /* Forward equations
      -----------------*/
  dlon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);

  sinphi = Math.sin(lat);
  cosphi = Math.cos(lat);

  coslon = Math.cos(dlon);
  g = this.sin_p14 * sinphi + this.cos_p14 * cosphi * coslon;
  ksp = 1;
  if ((g > 0) || (Math.abs(g) <= _constants_values__WEBPACK_IMPORTED_MODULE_2__.EPSLN)) {
    x = this.x0 + this.a * ksp * cosphi * Math.sin(dlon) / g;
    y = this.y0 + this.a * ksp * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon) / g;
  }
  else {

    // Point is in the opposing hemisphere and is unprojectable
    // We still need to return a reasonable point, so we project
    // to infinity, on a bearing
    // equivalent to the northern hemisphere equivalent
    // This is a reasonable approximation for short shapes and lines that
    // straddle the horizon.

    x = this.x0 + this.infinity_dist * cosphi * Math.sin(dlon);
    y = this.y0 + this.infinity_dist * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon);

  }
  p.x = x;
  p.y = y;
  return p;
}

function inverse(p) {
  var rh; /* Rho */
  var sinc, cosc;
  var c;
  var lon, lat;

  /* Inverse equations
      -----------------*/
  p.x = (p.x - this.x0) / this.a;
  p.y = (p.y - this.y0) / this.a;

  p.x /= this.k0;
  p.y /= this.k0;

  if ((rh = Math.sqrt(p.x * p.x + p.y * p.y))) {
    c = Math.atan2(rh, this.rc);
    sinc = Math.sin(c);
    cosc = Math.cos(c);

    lat = (0,_common_asinz__WEBPACK_IMPORTED_MODULE_1__["default"])(cosc * this.sin_p14 + (p.y * sinc * this.cos_p14) / rh);
    lon = Math.atan2(p.x * sinc, rh * this.cos_p14 * cosc - p.y * this.sin_p14 * sinc);
    lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + lon);
  }
  else {
    lat = this.phic0;
    lon = 0;
  }

  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["gnom"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/krovak.js":
/*!******************************************************!*\
  !*** ./node_modules/proj4/lib/projections/krovak.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");


function init() {
  this.a = 6377397.155;
  this.es = 0.006674372230614;
  this.e = Math.sqrt(this.es);
  if (!this.lat0) {
    this.lat0 = 0.863937979737193;
  }
  if (!this.long0) {
    this.long0 = 0.7417649320975901 - 0.308341501185665;
  }
  /* if scale not set default to 0.9999 */
  if (!this.k0) {
    this.k0 = 0.9999;
  }
  this.s45 = 0.785398163397448; /* 45 */
  this.s90 = 2 * this.s45;
  this.fi0 = this.lat0;
  this.e2 = this.es;
  this.e = Math.sqrt(this.e2);
  this.alfa = Math.sqrt(1 + (this.e2 * Math.pow(Math.cos(this.fi0), 4)) / (1 - this.e2));
  this.uq = 1.04216856380474;
  this.u0 = Math.asin(Math.sin(this.fi0) / this.alfa);
  this.g = Math.pow((1 + this.e * Math.sin(this.fi0)) / (1 - this.e * Math.sin(this.fi0)), this.alfa * this.e / 2);
  this.k = Math.tan(this.u0 / 2 + this.s45) / Math.pow(Math.tan(this.fi0 / 2 + this.s45), this.alfa) * this.g;
  this.k1 = this.k0;
  this.n0 = this.a * Math.sqrt(1 - this.e2) / (1 - this.e2 * Math.pow(Math.sin(this.fi0), 2));
  this.s0 = 1.37008346281555;
  this.n = Math.sin(this.s0);
  this.ro0 = this.k1 * this.n0 / Math.tan(this.s0);
  this.ad = this.s90 - this.uq;
}

/* ellipsoid */
/* calculate xy from lat/lon */
/* Constants, identical to inverse transform function */
function forward(p) {
  var gfi, u, deltav, s, d, eps, ro;
  var lon = p.x;
  var lat = p.y;
  var delta_lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);
  /* Transformation */
  gfi = Math.pow(((1 + this.e * Math.sin(lat)) / (1 - this.e * Math.sin(lat))), (this.alfa * this.e / 2));
  u = 2 * (Math.atan(this.k * Math.pow(Math.tan(lat / 2 + this.s45), this.alfa) / gfi) - this.s45);
  deltav = -delta_lon * this.alfa;
  s = Math.asin(Math.cos(this.ad) * Math.sin(u) + Math.sin(this.ad) * Math.cos(u) * Math.cos(deltav));
  d = Math.asin(Math.cos(u) * Math.sin(deltav) / Math.cos(s));
  eps = this.n * d;
  ro = this.ro0 * Math.pow(Math.tan(this.s0 / 2 + this.s45), this.n) / Math.pow(Math.tan(s / 2 + this.s45), this.n);
  p.y = ro * Math.cos(eps) / 1;
  p.x = ro * Math.sin(eps) / 1;

  if (!this.czech) {
    p.y *= -1;
    p.x *= -1;
  }
  return (p);
}

/* calculate lat/lon from xy */
function inverse(p) {
  var u, deltav, s, d, eps, ro, fi1;
  var ok;

  /* Transformation */
  /* revert y, x*/
  var tmp = p.x;
  p.x = p.y;
  p.y = tmp;
  if (!this.czech) {
    p.y *= -1;
    p.x *= -1;
  }
  ro = Math.sqrt(p.x * p.x + p.y * p.y);
  eps = Math.atan2(p.y, p.x);
  d = eps / Math.sin(this.s0);
  s = 2 * (Math.atan(Math.pow(this.ro0 / ro, 1 / this.n) * Math.tan(this.s0 / 2 + this.s45)) - this.s45);
  u = Math.asin(Math.cos(this.ad) * Math.sin(s) - Math.sin(this.ad) * Math.cos(s) * Math.cos(d));
  deltav = Math.asin(Math.cos(s) * Math.sin(d) / Math.cos(u));
  p.x = this.long0 - deltav / this.alfa;
  fi1 = u;
  ok = 0;
  var iter = 0;
  do {
    p.y = 2 * (Math.atan(Math.pow(this.k, - 1 / this.alfa) * Math.pow(Math.tan(u / 2 + this.s45), 1 / this.alfa) * Math.pow((1 + this.e * Math.sin(fi1)) / (1 - this.e * Math.sin(fi1)), this.e / 2)) - this.s45);
    if (Math.abs(fi1 - p.y) < 0.0000000001) {
      ok = 1;
    }
    fi1 = p.y;
    iter += 1;
  } while (ok === 0 && iter < 15);
  if (iter >= 15) {
    return null;
  }

  return (p);
}

var names = ["Krovak", "krovak"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/laea.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/laea.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "S_POLE": () => (/* binding */ S_POLE),
/* harmony export */   "N_POLE": () => (/* binding */ N_POLE),
/* harmony export */   "EQUIT": () => (/* binding */ EQUIT),
/* harmony export */   "OBLIQ": () => (/* binding */ OBLIQ),
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _common_qsfnz__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/qsfnz */ "./node_modules/proj4/lib/common/qsfnz.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");






/*
  reference
    "New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
    The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
  */

var S_POLE = 1;

var N_POLE = 2;
var EQUIT = 3;
var OBLIQ = 4;

/* Initialize the Lambert Azimuthal Equal Area projection
  ------------------------------------------------------*/
function init() {
  var t = Math.abs(this.lat0);
  if (Math.abs(t - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
    this.mode = this.lat0 < 0 ? this.S_POLE : this.N_POLE;
  }
  else if (Math.abs(t) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
    this.mode = this.EQUIT;
  }
  else {
    this.mode = this.OBLIQ;
  }
  if (this.es > 0) {
    var sinphi;

    this.qp = (0,_common_qsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e, 1);
    this.mmf = 0.5 / (1 - this.es);
    this.apa = authset(this.es);
    switch (this.mode) {
    case this.N_POLE:
      this.dd = 1;
      break;
    case this.S_POLE:
      this.dd = 1;
      break;
    case this.EQUIT:
      this.rq = Math.sqrt(0.5 * this.qp);
      this.dd = 1 / this.rq;
      this.xmf = 1;
      this.ymf = 0.5 * this.qp;
      break;
    case this.OBLIQ:
      this.rq = Math.sqrt(0.5 * this.qp);
      sinphi = Math.sin(this.lat0);
      this.sinb1 = (0,_common_qsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e, sinphi) / this.qp;
      this.cosb1 = Math.sqrt(1 - this.sinb1 * this.sinb1);
      this.dd = Math.cos(this.lat0) / (Math.sqrt(1 - this.es * sinphi * sinphi) * this.rq * this.cosb1);
      this.ymf = (this.xmf = this.rq) / this.dd;
      this.xmf *= this.dd;
      break;
    }
  }
  else {
    if (this.mode === this.OBLIQ) {
      this.sinph0 = Math.sin(this.lat0);
      this.cosph0 = Math.cos(this.lat0);
    }
  }
}

/* Lambert Azimuthal Equal Area forward equations--mapping lat,long to x,y
  -----------------------------------------------------------------------*/
function forward(p) {

  /* Forward equations
      -----------------*/
  var x, y, coslam, sinlam, sinphi, q, sinb, cosb, b, cosphi;
  var lam = p.x;
  var phi = p.y;

  lam = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_2__["default"])(lam - this.long0);
  if (this.sphere) {
    sinphi = Math.sin(phi);
    cosphi = Math.cos(phi);
    coslam = Math.cos(lam);
    if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
      y = (this.mode === this.EQUIT) ? 1 + cosphi * coslam : 1 + this.sinph0 * sinphi + this.cosph0 * cosphi * coslam;
      if (y <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
        return null;
      }
      y = Math.sqrt(2 / y);
      x = y * cosphi * Math.sin(lam);
      y *= (this.mode === this.EQUIT) ? sinphi : this.cosph0 * sinphi - this.sinph0 * cosphi * coslam;
    }
    else if (this.mode === this.N_POLE || this.mode === this.S_POLE) {
      if (this.mode === this.N_POLE) {
        coslam = -coslam;
      }
      if (Math.abs(phi + this.lat0) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
        return null;
      }
      y = _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI - phi * 0.5;
      y = 2 * ((this.mode === this.S_POLE) ? Math.cos(y) : Math.sin(y));
      x = y * Math.sin(lam);
      y *= coslam;
    }
  }
  else {
    sinb = 0;
    cosb = 0;
    b = 0;
    coslam = Math.cos(lam);
    sinlam = Math.sin(lam);
    sinphi = Math.sin(phi);
    q = (0,_common_qsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e, sinphi);
    if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
      sinb = q / this.qp;
      cosb = Math.sqrt(1 - sinb * sinb);
    }
    switch (this.mode) {
    case this.OBLIQ:
      b = 1 + this.sinb1 * sinb + this.cosb1 * cosb * coslam;
      break;
    case this.EQUIT:
      b = 1 + cosb * coslam;
      break;
    case this.N_POLE:
      b = _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + phi;
      q = this.qp - q;
      break;
    case this.S_POLE:
      b = phi - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
      q = this.qp + q;
      break;
    }
    if (Math.abs(b) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
      return null;
    }
    switch (this.mode) {
    case this.OBLIQ:
    case this.EQUIT:
      b = Math.sqrt(2 / b);
      if (this.mode === this.OBLIQ) {
        y = this.ymf * b * (this.cosb1 * sinb - this.sinb1 * cosb * coslam);
      }
      else {
        y = (b = Math.sqrt(2 / (1 + cosb * coslam))) * sinb * this.ymf;
      }
      x = this.xmf * b * cosb * sinlam;
      break;
    case this.N_POLE:
    case this.S_POLE:
      if (q >= 0) {
        x = (b = Math.sqrt(q)) * sinlam;
        y = coslam * ((this.mode === this.S_POLE) ? b : -b);
      }
      else {
        x = y = 0;
      }
      break;
    }
  }

  p.x = this.a * x + this.x0;
  p.y = this.a * y + this.y0;
  return p;
}

/* Inverse equations
  -----------------*/
function inverse(p) {
  p.x -= this.x0;
  p.y -= this.y0;
  var x = p.x / this.a;
  var y = p.y / this.a;
  var lam, phi, cCe, sCe, q, rho, ab;
  if (this.sphere) {
    var cosz = 0,
      rh, sinz = 0;

    rh = Math.sqrt(x * x + y * y);
    phi = rh * 0.5;
    if (phi > 1) {
      return null;
    }
    phi = 2 * Math.asin(phi);
    if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
      sinz = Math.sin(phi);
      cosz = Math.cos(phi);
    }
    switch (this.mode) {
    case this.EQUIT:
      phi = (Math.abs(rh) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) ? 0 : Math.asin(y * sinz / rh);
      x *= sinz;
      y = cosz * rh;
      break;
    case this.OBLIQ:
      phi = (Math.abs(rh) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) ? this.lat0 : Math.asin(cosz * this.sinph0 + y * sinz * this.cosph0 / rh);
      x *= sinz * this.cosph0;
      y = (cosz - Math.sin(phi) * this.sinph0) * rh;
      break;
    case this.N_POLE:
      y = -y;
      phi = _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI - phi;
      break;
    case this.S_POLE:
      phi -= _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
      break;
    }
    lam = (y === 0 && (this.mode === this.EQUIT || this.mode === this.OBLIQ)) ? 0 : Math.atan2(x, y);
  }
  else {
    ab = 0;
    if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
      x /= this.dd;
      y *= this.dd;
      rho = Math.sqrt(x * x + y * y);
      if (rho < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
        p.x = this.long0;
        p.y = this.lat0;
        return p;
      }
      sCe = 2 * Math.asin(0.5 * rho / this.rq);
      cCe = Math.cos(sCe);
      x *= (sCe = Math.sin(sCe));
      if (this.mode === this.OBLIQ) {
        ab = cCe * this.sinb1 + y * sCe * this.cosb1 / rho;
        q = this.qp * ab;
        y = rho * this.cosb1 * cCe - y * this.sinb1 * sCe;
      }
      else {
        ab = y * sCe / rho;
        q = this.qp * ab;
        y = rho * cCe;
      }
    }
    else if (this.mode === this.N_POLE || this.mode === this.S_POLE) {
      if (this.mode === this.N_POLE) {
        y = -y;
      }
      q = (x * x + y * y);
      if (!q) {
        p.x = this.long0;
        p.y = this.lat0;
        return p;
      }
      ab = 1 - q / this.qp;
      if (this.mode === this.S_POLE) {
        ab = -ab;
      }
    }
    lam = Math.atan2(x, y);
    phi = authlat(Math.asin(ab), this.apa);
  }

  p.x = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_2__["default"])(this.long0 + lam);
  p.y = phi;
  return p;
}

/* determine latitude from authalic latitude */
var P00 = 0.33333333333333333333;

var P01 = 0.17222222222222222222;
var P02 = 0.10257936507936507936;
var P10 = 0.06388888888888888888;
var P11 = 0.06640211640211640211;
var P20 = 0.01641501294219154443;

function authset(es) {
  var t;
  var APA = [];
  APA[0] = es * P00;
  t = es * es;
  APA[0] += t * P01;
  APA[1] = t * P10;
  t *= es;
  APA[0] += t * P02;
  APA[1] += t * P11;
  APA[2] = t * P20;
  return APA;
}

function authlat(beta, APA) {
  var t = beta + beta;
  return (beta + APA[0] * Math.sin(t) + APA[1] * Math.sin(t + t) + APA[2] * Math.sin(t + t + t));
}

var names = ["Lambert Azimuthal Equal Area", "Lambert_Azimuthal_Equal_Area", "laea"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names,
  S_POLE: S_POLE,
  N_POLE: N_POLE,
  EQUIT: EQUIT,
  OBLIQ: OBLIQ
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/lcc.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/projections/lcc.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_msfnz__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/msfnz */ "./node_modules/proj4/lib/common/msfnz.js");
/* harmony import */ var _common_tsfnz__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/tsfnz */ "./node_modules/proj4/lib/common/tsfnz.js");
/* harmony import */ var _common_sign__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/sign */ "./node_modules/proj4/lib/common/sign.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_phi2z__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../common/phi2z */ "./node_modules/proj4/lib/common/phi2z.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");






function init() {
  
  //double lat0;                    /* the reference latitude               */
  //double long0;                   /* the reference longitude              */
  //double lat1;                    /* first standard parallel              */
  //double lat2;                    /* second standard parallel             */
  //double r_maj;                   /* major axis                           */
  //double r_min;                   /* minor axis                           */
  //double false_east;              /* x offset in meters                   */
  //double false_north;             /* y offset in meters                   */
  
  //the above value can be set with proj4.defs
  //example: proj4.defs("EPSG:2154","+proj=lcc +lat_1=49 +lat_2=44 +lat_0=46.5 +lon_0=3 +x_0=700000 +y_0=6600000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs");

  if (!this.lat2) {
    this.lat2 = this.lat1;
  } //if lat2 is not defined
  if (!this.k0) {
    this.k0 = 1;
  }
  this.x0 = this.x0 || 0;
  this.y0 = this.y0 || 0;
  // Standard Parallels cannot be equal and on opposite sides of the equator
  if (Math.abs(this.lat1 + this.lat2) < _constants_values__WEBPACK_IMPORTED_MODULE_5__.EPSLN) {
    return;
  }

  var temp = this.b / this.a;
  this.e = Math.sqrt(1 - temp * temp);

  var sin1 = Math.sin(this.lat1);
  var cos1 = Math.cos(this.lat1);
  var ms1 = (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e, sin1, cos1);
  var ts1 = (0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e, this.lat1, sin1);

  var sin2 = Math.sin(this.lat2);
  var cos2 = Math.cos(this.lat2);
  var ms2 = (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e, sin2, cos2);
  var ts2 = (0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e, this.lat2, sin2);

  var ts0 = (0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e, this.lat0, Math.sin(this.lat0));

  if (Math.abs(this.lat1 - this.lat2) > _constants_values__WEBPACK_IMPORTED_MODULE_5__.EPSLN) {
    this.ns = Math.log(ms1 / ms2) / Math.log(ts1 / ts2);
  }
  else {
    this.ns = sin1;
  }
  if (isNaN(this.ns)) {
    this.ns = sin1;
  }
  this.f0 = ms1 / (this.ns * Math.pow(ts1, this.ns));
  this.rh = this.a * this.f0 * Math.pow(ts0, this.ns);
  if (!this.title) {
    this.title = "Lambert Conformal Conic";
  }
}

// Lambert Conformal conic forward equations--mapping lat,long to x,y
// -----------------------------------------------------------------
function forward(p) {

  var lon = p.x;
  var lat = p.y;

  // singular cases :
  if (Math.abs(2 * Math.abs(lat) - Math.PI) <= _constants_values__WEBPACK_IMPORTED_MODULE_5__.EPSLN) {
    lat = (0,_common_sign__WEBPACK_IMPORTED_MODULE_2__["default"])(lat) * (_constants_values__WEBPACK_IMPORTED_MODULE_5__.HALF_PI - 2 * _constants_values__WEBPACK_IMPORTED_MODULE_5__.EPSLN);
  }

  var con = Math.abs(Math.abs(lat) - _constants_values__WEBPACK_IMPORTED_MODULE_5__.HALF_PI);
  var ts, rh1;
  if (con > _constants_values__WEBPACK_IMPORTED_MODULE_5__.EPSLN) {
    ts = (0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_1__["default"])(this.e, lat, Math.sin(lat));
    rh1 = this.a * this.f0 * Math.pow(ts, this.ns);
  }
  else {
    con = lat * this.ns;
    if (con <= 0) {
      return null;
    }
    rh1 = 0;
  }
  var theta = this.ns * (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_3__["default"])(lon - this.long0);
  p.x = this.k0 * (rh1 * Math.sin(theta)) + this.x0;
  p.y = this.k0 * (this.rh - rh1 * Math.cos(theta)) + this.y0;

  return p;
}

// Lambert Conformal Conic inverse equations--mapping x,y to lat/long
// -----------------------------------------------------------------
function inverse(p) {

  var rh1, con, ts;
  var lat, lon;
  var x = (p.x - this.x0) / this.k0;
  var y = (this.rh - (p.y - this.y0) / this.k0);
  if (this.ns > 0) {
    rh1 = Math.sqrt(x * x + y * y);
    con = 1;
  }
  else {
    rh1 = -Math.sqrt(x * x + y * y);
    con = -1;
  }
  var theta = 0;
  if (rh1 !== 0) {
    theta = Math.atan2((con * x), (con * y));
  }
  if ((rh1 !== 0) || (this.ns > 0)) {
    con = 1 / this.ns;
    ts = Math.pow((rh1 / (this.a * this.f0)), con);
    lat = (0,_common_phi2z__WEBPACK_IMPORTED_MODULE_4__["default"])(this.e, ts);
    if (lat === -9999) {
      return null;
    }
  }
  else {
    lat = -_constants_values__WEBPACK_IMPORTED_MODULE_5__.HALF_PI;
  }
  lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_3__["default"])(theta / this.ns + this.long0);

  p.x = lon;
  p.y = lat;
  return p;
}

var names = [
  "Lambert Tangential Conformal Conic Projection",
  "Lambert_Conformal_Conic",
  "Lambert_Conformal_Conic_1SP",
  "Lambert_Conformal_Conic_2SP",
  "lcc"
];

/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/longlat.js":
/*!*******************************************************!*\
  !*** ./node_modules/proj4/lib/projections/longlat.js ***!
  \*******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ identity),
/* harmony export */   "inverse": () => (/* binding */ identity),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
function init() {
  //no-op for longlat
}

function identity(pt) {
  return pt;
}


var names = ["longlat", "identity"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: identity,
  inverse: identity,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/merc.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/merc.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_msfnz__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/msfnz */ "./node_modules/proj4/lib/common/msfnz.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_tsfnz__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/tsfnz */ "./node_modules/proj4/lib/common/tsfnz.js");
/* harmony import */ var _common_phi2z__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/phi2z */ "./node_modules/proj4/lib/common/phi2z.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");






function init() {
  var con = this.b / this.a;
  this.es = 1 - con * con;
  if(!('x0' in this)){
    this.x0 = 0;
  }
  if(!('y0' in this)){
    this.y0 = 0;
  }
  this.e = Math.sqrt(this.es);
  if (this.lat_ts) {
    if (this.sphere) {
      this.k0 = Math.cos(this.lat_ts);
    }
    else {
      this.k0 = (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts));
    }
  }
  else {
    if (!this.k0) {
      if (this.k) {
        this.k0 = this.k;
      }
      else {
        this.k0 = 1;
      }
    }
  }
}

/* Mercator forward equations--mapping lat,long to x,y
  --------------------------------------------------*/

function forward(p) {
  var lon = p.x;
  var lat = p.y;
  // convert to radians
  if (lat * _constants_values__WEBPACK_IMPORTED_MODULE_4__.R2D > 90 && lat * _constants_values__WEBPACK_IMPORTED_MODULE_4__.R2D < -90 && lon * _constants_values__WEBPACK_IMPORTED_MODULE_4__.R2D > 180 && lon * _constants_values__WEBPACK_IMPORTED_MODULE_4__.R2D < -180) {
    return null;
  }

  var x, y;
  if (Math.abs(Math.abs(lat) - _constants_values__WEBPACK_IMPORTED_MODULE_4__.HALF_PI) <= _constants_values__WEBPACK_IMPORTED_MODULE_4__.EPSLN) {
    return null;
  }
  else {
    if (this.sphere) {
      x = this.x0 + this.a * this.k0 * (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__["default"])(lon - this.long0);
      y = this.y0 + this.a * this.k0 * Math.log(Math.tan(_constants_values__WEBPACK_IMPORTED_MODULE_4__.FORTPI + 0.5 * lat));
    }
    else {
      var sinphi = Math.sin(lat);
      var ts = (0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_2__["default"])(this.e, lat, sinphi);
      x = this.x0 + this.a * this.k0 * (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__["default"])(lon - this.long0);
      y = this.y0 - this.a * this.k0 * Math.log(ts);
    }
    p.x = x;
    p.y = y;
    return p;
  }
}

/* Mercator inverse equations--mapping x,y to lat/long
  --------------------------------------------------*/
function inverse(p) {

  var x = p.x - this.x0;
  var y = p.y - this.y0;
  var lon, lat;

  if (this.sphere) {
    lat = _constants_values__WEBPACK_IMPORTED_MODULE_4__.HALF_PI - 2 * Math.atan(Math.exp(-y / (this.a * this.k0)));
  }
  else {
    var ts = Math.exp(-y / (this.a * this.k0));
    lat = (0,_common_phi2z__WEBPACK_IMPORTED_MODULE_3__["default"])(this.e, ts);
    if (lat === -9999) {
      return null;
    }
  }
  lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__["default"])(this.long0 + x / (this.a * this.k0));

  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["Mercator", "Popular Visualisation Pseudo Mercator", "Mercator_1SP", "Mercator_Auxiliary_Sphere", "merc"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/mill.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/mill.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");


/*
  reference
    "New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
    The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
  */


/* Initialize the Miller Cylindrical projection
  -------------------------------------------*/
function init() {
  //no-op
}

/* Miller Cylindrical forward equations--mapping lat,long to x,y
    ------------------------------------------------------------*/
function forward(p) {
  var lon = p.x;
  var lat = p.y;
  /* Forward equations
      -----------------*/
  var dlon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);
  var x = this.x0 + this.a * dlon;
  var y = this.y0 + this.a * Math.log(Math.tan((Math.PI / 4) + (lat / 2.5))) * 1.25;

  p.x = x;
  p.y = y;
  return p;
}

/* Miller Cylindrical inverse equations--mapping x,y to lat/long
    ------------------------------------------------------------*/
function inverse(p) {
  p.x -= this.x0;
  p.y -= this.y0;

  var lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + p.x / this.a);
  var lat = 2.5 * (Math.atan(Math.exp(0.8 * p.y / this.a)) - Math.PI / 4);

  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["Miller_Cylindrical", "mill"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/moll.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/moll.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");

function init() {}

/* Mollweide forward equations--mapping lat,long to x,y
    ----------------------------------------------------*/
function forward(p) {

  /* Forward equations
      -----------------*/
  var lon = p.x;
  var lat = p.y;

  var delta_lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);
  var theta = lat;
  var con = Math.PI * Math.sin(lat);

  /* Iterate using the Newton-Raphson method to find theta
      -----------------------------------------------------*/
  while (true) {
    var delta_theta = -(theta + Math.sin(theta) - con) / (1 + Math.cos(theta));
    theta += delta_theta;
    if (Math.abs(delta_theta) < _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
      break;
    }
  }
  theta /= 2;

  /* If the latitude is 90 deg, force the x coordinate to be "0 + false easting"
       this is done here because of precision problems with "cos(theta)"
       --------------------------------------------------------------------------*/
  if (Math.PI / 2 - Math.abs(lat) < _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
    delta_lon = 0;
  }
  var x = 0.900316316158 * this.a * delta_lon * Math.cos(theta) + this.x0;
  var y = 1.4142135623731 * this.a * Math.sin(theta) + this.y0;

  p.x = x;
  p.y = y;
  return p;
}

function inverse(p) {
  var theta;
  var arg;

  /* Inverse equations
      -----------------*/
  p.x -= this.x0;
  p.y -= this.y0;
  arg = p.y / (1.4142135623731 * this.a);

  /* Because of division by zero problems, 'arg' can not be 1.  Therefore
       a number very close to one is used instead.
       -------------------------------------------------------------------*/
  if (Math.abs(arg) > 0.999999999999) {
    arg = 0.999999999999;
  }
  theta = Math.asin(arg);
  var lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + (p.x / (0.900316316158 * this.a * Math.cos(theta))));
  if (lon < (-Math.PI)) {
    lon = -Math.PI;
  }
  if (lon > Math.PI) {
    lon = Math.PI;
  }
  arg = (2 * theta + Math.sin(2 * theta)) / Math.PI;
  if (Math.abs(arg) > 1) {
    arg = 1;
  }
  var lat = Math.asin(arg);

  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["Mollweide", "moll"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/nzmg.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/nzmg.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "iterations": () => (/* binding */ iterations),
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");


/*
  reference
    Department of Land and Survey Technical Circular 1973/32
      http://www.linz.govt.nz/docs/miscellaneous/nz-map-definition.pdf
    OSG Technical Report 4.1
      http://www.linz.govt.nz/docs/miscellaneous/nzmg.pdf
  */

/**
 * iterations: Number of iterations to refine inverse transform.
 *     0 -> km accuracy
 *     1 -> m accuracy -- suitable for most mapping applications
 *     2 -> mm accuracy
 */
var iterations = 1;

function init() {
  this.A = [];
  this.A[1] = 0.6399175073;
  this.A[2] = -0.1358797613;
  this.A[3] = 0.063294409;
  this.A[4] = -0.02526853;
  this.A[5] = 0.0117879;
  this.A[6] = -0.0055161;
  this.A[7] = 0.0026906;
  this.A[8] = -0.001333;
  this.A[9] = 0.00067;
  this.A[10] = -0.00034;

  this.B_re = [];
  this.B_im = [];
  this.B_re[1] = 0.7557853228;
  this.B_im[1] = 0;
  this.B_re[2] = 0.249204646;
  this.B_im[2] = 0.003371507;
  this.B_re[3] = -0.001541739;
  this.B_im[3] = 0.041058560;
  this.B_re[4] = -0.10162907;
  this.B_im[4] = 0.01727609;
  this.B_re[5] = -0.26623489;
  this.B_im[5] = -0.36249218;
  this.B_re[6] = -0.6870983;
  this.B_im[6] = -1.1651967;

  this.C_re = [];
  this.C_im = [];
  this.C_re[1] = 1.3231270439;
  this.C_im[1] = 0;
  this.C_re[2] = -0.577245789;
  this.C_im[2] = -0.007809598;
  this.C_re[3] = 0.508307513;
  this.C_im[3] = -0.112208952;
  this.C_re[4] = -0.15094762;
  this.C_im[4] = 0.18200602;
  this.C_re[5] = 1.01418179;
  this.C_im[5] = 1.64497696;
  this.C_re[6] = 1.9660549;
  this.C_im[6] = 2.5127645;

  this.D = [];
  this.D[1] = 1.5627014243;
  this.D[2] = 0.5185406398;
  this.D[3] = -0.03333098;
  this.D[4] = -0.1052906;
  this.D[5] = -0.0368594;
  this.D[6] = 0.007317;
  this.D[7] = 0.01220;
  this.D[8] = 0.00394;
  this.D[9] = -0.0013;
}

/**
    New Zealand Map Grid Forward  - long/lat to x/y
    long/lat in radians
  */
function forward(p) {
  var n;
  var lon = p.x;
  var lat = p.y;

  var delta_lat = lat - this.lat0;
  var delta_lon = lon - this.long0;

  // 1. Calculate d_phi and d_psi    ...                          // and d_lambda
  // For this algorithm, delta_latitude is in seconds of arc x 10-5, so we need to scale to those units. Longitude is radians.
  var d_phi = delta_lat / _constants_values__WEBPACK_IMPORTED_MODULE_0__.SEC_TO_RAD * 1E-5;
  var d_lambda = delta_lon;
  var d_phi_n = 1; // d_phi^0

  var d_psi = 0;
  for (n = 1; n <= 10; n++) {
    d_phi_n = d_phi_n * d_phi;
    d_psi = d_psi + this.A[n] * d_phi_n;
  }

  // 2. Calculate theta
  var th_re = d_psi;
  var th_im = d_lambda;

  // 3. Calculate z
  var th_n_re = 1;
  var th_n_im = 0; // theta^0
  var th_n_re1;
  var th_n_im1;

  var z_re = 0;
  var z_im = 0;
  for (n = 1; n <= 6; n++) {
    th_n_re1 = th_n_re * th_re - th_n_im * th_im;
    th_n_im1 = th_n_im * th_re + th_n_re * th_im;
    th_n_re = th_n_re1;
    th_n_im = th_n_im1;
    z_re = z_re + this.B_re[n] * th_n_re - this.B_im[n] * th_n_im;
    z_im = z_im + this.B_im[n] * th_n_re + this.B_re[n] * th_n_im;
  }

  // 4. Calculate easting and northing
  p.x = (z_im * this.a) + this.x0;
  p.y = (z_re * this.a) + this.y0;

  return p;
}

/**
    New Zealand Map Grid Inverse  -  x/y to long/lat
  */
function inverse(p) {
  var n;
  var x = p.x;
  var y = p.y;

  var delta_x = x - this.x0;
  var delta_y = y - this.y0;

  // 1. Calculate z
  var z_re = delta_y / this.a;
  var z_im = delta_x / this.a;

  // 2a. Calculate theta - first approximation gives km accuracy
  var z_n_re = 1;
  var z_n_im = 0; // z^0
  var z_n_re1;
  var z_n_im1;

  var th_re = 0;
  var th_im = 0;
  for (n = 1; n <= 6; n++) {
    z_n_re1 = z_n_re * z_re - z_n_im * z_im;
    z_n_im1 = z_n_im * z_re + z_n_re * z_im;
    z_n_re = z_n_re1;
    z_n_im = z_n_im1;
    th_re = th_re + this.C_re[n] * z_n_re - this.C_im[n] * z_n_im;
    th_im = th_im + this.C_im[n] * z_n_re + this.C_re[n] * z_n_im;
  }

  // 2b. Iterate to refine the accuracy of the calculation
  //        0 iterations gives km accuracy
  //        1 iteration gives m accuracy -- good enough for most mapping applications
  //        2 iterations bives mm accuracy
  for (var i = 0; i < this.iterations; i++) {
    var th_n_re = th_re;
    var th_n_im = th_im;
    var th_n_re1;
    var th_n_im1;

    var num_re = z_re;
    var num_im = z_im;
    for (n = 2; n <= 6; n++) {
      th_n_re1 = th_n_re * th_re - th_n_im * th_im;
      th_n_im1 = th_n_im * th_re + th_n_re * th_im;
      th_n_re = th_n_re1;
      th_n_im = th_n_im1;
      num_re = num_re + (n - 1) * (this.B_re[n] * th_n_re - this.B_im[n] * th_n_im);
      num_im = num_im + (n - 1) * (this.B_im[n] * th_n_re + this.B_re[n] * th_n_im);
    }

    th_n_re = 1;
    th_n_im = 0;
    var den_re = this.B_re[1];
    var den_im = this.B_im[1];
    for (n = 2; n <= 6; n++) {
      th_n_re1 = th_n_re * th_re - th_n_im * th_im;
      th_n_im1 = th_n_im * th_re + th_n_re * th_im;
      th_n_re = th_n_re1;
      th_n_im = th_n_im1;
      den_re = den_re + n * (this.B_re[n] * th_n_re - this.B_im[n] * th_n_im);
      den_im = den_im + n * (this.B_im[n] * th_n_re + this.B_re[n] * th_n_im);
    }

    // Complex division
    var den2 = den_re * den_re + den_im * den_im;
    th_re = (num_re * den_re + num_im * den_im) / den2;
    th_im = (num_im * den_re - num_re * den_im) / den2;
  }

  // 3. Calculate d_phi              ...                                    // and d_lambda
  var d_psi = th_re;
  var d_lambda = th_im;
  var d_psi_n = 1; // d_psi^0

  var d_phi = 0;
  for (n = 1; n <= 9; n++) {
    d_psi_n = d_psi_n * d_psi;
    d_phi = d_phi + this.D[n] * d_psi_n;
  }

  // 4. Calculate latitude and longitude
  // d_phi is calcuated in second of arc * 10^-5, so we need to scale back to radians. d_lambda is in radians.
  var lat = this.lat0 + (d_phi * _constants_values__WEBPACK_IMPORTED_MODULE_0__.SEC_TO_RAD * 1E5);
  var lon = this.long0 + d_lambda;

  p.x = lon;
  p.y = lat;

  return p;
}

var names = ["New_Zealand_Map_Grid", "nzmg"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/omerc.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/omerc.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_tsfnz__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/tsfnz */ "./node_modules/proj4/lib/common/tsfnz.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_phi2z__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/phi2z */ "./node_modules/proj4/lib/common/phi2z.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");





var TOL = 1e-7;

function isTypeA(P) {
  var typeAProjections = ['Hotine_Oblique_Mercator','Hotine_Oblique_Mercator_Azimuth_Natural_Origin'];
  var projectionName = typeof P.PROJECTION === "object" ? Object.keys(P.PROJECTION)[0] : P.PROJECTION;
  
  return 'no_uoff' in P || 'no_off' in P || typeAProjections.indexOf(projectionName) !== -1;
}


/* Initialize the Oblique Mercator  projection
    ------------------------------------------*/
function init() {  
  var con, com, cosph0, D, F, H, L, sinph0, p, J, gamma = 0,
    gamma0, lamc = 0, lam1 = 0, lam2 = 0, phi1 = 0, phi2 = 0, alpha_c = 0, AB;
  
  // only Type A uses the no_off or no_uoff property
  // https://github.com/OSGeo/proj.4/issues/104
  this.no_off = isTypeA(this);
  this.no_rot = 'no_rot' in this;
  
  var alp = false;
  if ("alpha" in this) {
    alp = true;
  }

  var gam = false;
  if ("rectified_grid_angle" in this) {
    gam = true;
  }

  if (alp) {
    alpha_c = this.alpha;
  }
  
  if (gam) {
    gamma = (this.rectified_grid_angle * _constants_values__WEBPACK_IMPORTED_MODULE_3__.D2R);
  }
  
  if (alp || gam) {
    lamc = this.longc;
  } else {
    lam1 = this.long1;
    phi1 = this.lat1;
    lam2 = this.long2;
    phi2 = this.lat2;
    
    if (Math.abs(phi1 - phi2) <= TOL || (con = Math.abs(phi1)) <= TOL ||
        Math.abs(con - _constants_values__WEBPACK_IMPORTED_MODULE_3__.HALF_PI) <= TOL || Math.abs(Math.abs(this.lat0) - _constants_values__WEBPACK_IMPORTED_MODULE_3__.HALF_PI) <= TOL ||
        Math.abs(Math.abs(phi2) - _constants_values__WEBPACK_IMPORTED_MODULE_3__.HALF_PI) <= TOL) {
      throw new Error();
    }
  }
  
  var one_es = 1.0 - this.es;
  com = Math.sqrt(one_es);
  
  if (Math.abs(this.lat0) > _constants_values__WEBPACK_IMPORTED_MODULE_3__.EPSLN) {
    sinph0 = Math.sin(this.lat0);
    cosph0 = Math.cos(this.lat0);
    con = 1 - this.es * sinph0 * sinph0;
    this.B = cosph0 * cosph0;
    this.B = Math.sqrt(1 + this.es * this.B * this.B / one_es);
    this.A = this.B * this.k0 * com / con;
    D = this.B * com / (cosph0 * Math.sqrt(con));
    F = D * D -1;
    
    if (F <= 0) {
      F = 0;
    } else {
      F = Math.sqrt(F);
      if (this.lat0 < 0) {
        F = -F;
      }
    }
    
    this.E = F += D;
    this.E *= Math.pow((0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e, this.lat0, sinph0), this.B);
  } else {
    this.B = 1 / com;
    this.A = this.k0;
    this.E = D = F = 1;
  }
  
  if (alp || gam) {
    if (alp) {
      gamma0 = Math.asin(Math.sin(alpha_c) / D);
      if (!gam) {
        gamma = alpha_c;
      }
    } else {
      gamma0 = gamma;
      alpha_c = Math.asin(D * Math.sin(gamma0));
    }
    this.lam0 = lamc - Math.asin(0.5 * (F - 1 / F) * Math.tan(gamma0)) / this.B;
  } else {
    H = Math.pow((0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e, phi1, Math.sin(phi1)), this.B);
    L = Math.pow((0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e, phi2, Math.sin(phi2)), this.B);
    F = this.E / H;
    p = (L - H) / (L + H);
    J = this.E * this.E;
    J = (J - L * H) / (J + L * H);
    con = lam1 - lam2;
    
    if (con < -Math.pi) {
      lam2 -=_constants_values__WEBPACK_IMPORTED_MODULE_3__.TWO_PI;
    } else if (con > Math.pi) {
      lam2 += _constants_values__WEBPACK_IMPORTED_MODULE_3__.TWO_PI;
    }
    
    this.lam0 = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__["default"])(0.5 * (lam1 + lam2) - Math.atan(J * Math.tan(0.5 * this.B * (lam1 - lam2)) / p) / this.B);
    gamma0 = Math.atan(2 * Math.sin(this.B * (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__["default"])(lam1 - this.lam0)) / (F - 1 / F));
    gamma = alpha_c = Math.asin(D * Math.sin(gamma0));
  }
  
  this.singam = Math.sin(gamma0);
  this.cosgam = Math.cos(gamma0);
  this.sinrot = Math.sin(gamma);
  this.cosrot = Math.cos(gamma);
  
  this.rB = 1 / this.B;
  this.ArB = this.A * this.rB;
  this.BrA = 1 / this.ArB;
  AB = this.A * this.B;
  
  if (this.no_off) {
    this.u_0 = 0;
  } else {
    this.u_0 = Math.abs(this.ArB * Math.atan(Math.sqrt(D * D - 1) / Math.cos(alpha_c)));
    
    if (this.lat0 < 0) {
      this.u_0 = - this.u_0;
    }  
  }
    
  F = 0.5 * gamma0;
  this.v_pole_n = this.ArB * Math.log(Math.tan(_constants_values__WEBPACK_IMPORTED_MODULE_3__.FORTPI - F));
  this.v_pole_s = this.ArB * Math.log(Math.tan(_constants_values__WEBPACK_IMPORTED_MODULE_3__.FORTPI + F));
}


/* Oblique Mercator forward equations--mapping lat,long to x,y
    ----------------------------------------------------------*/
function forward(p) {
  var coords = {};
  var S, T, U, V, W, temp, u, v;
  p.x = p.x - this.lam0;
  
  if (Math.abs(Math.abs(p.y) - _constants_values__WEBPACK_IMPORTED_MODULE_3__.HALF_PI) > _constants_values__WEBPACK_IMPORTED_MODULE_3__.EPSLN) {
    W = this.E / Math.pow((0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_0__["default"])(this.e, p.y, Math.sin(p.y)), this.B);
    
    temp = 1 / W;
    S = 0.5 * (W - temp);
    T = 0.5 * (W + temp);
    V = Math.sin(this.B * p.x);
    U = (S * this.singam - V * this.cosgam) / T;
        
    if (Math.abs(Math.abs(U) - 1.0) < _constants_values__WEBPACK_IMPORTED_MODULE_3__.EPSLN) {
      throw new Error();
    }
    
    v = 0.5 * this.ArB * Math.log((1 - U)/(1 + U));
    temp = Math.cos(this.B * p.x);
    
    if (Math.abs(temp) < TOL) {
      u = this.A * p.x;
    } else {
      u = this.ArB * Math.atan2((S * this.cosgam + V * this.singam), temp);
    }    
  } else {
    v = p.y > 0 ? this.v_pole_n : this.v_pole_s;
    u = this.ArB * p.y;
  }
     
  if (this.no_rot) {
    coords.x = u;
    coords.y = v;
  } else {
    u -= this.u_0;
    coords.x = v * this.cosrot + u * this.sinrot;
    coords.y = u * this.cosrot - v * this.sinrot;
  }
  
  coords.x = (this.a * coords.x + this.x0);
  coords.y = (this.a * coords.y + this.y0);
  
  return coords;
}

function inverse(p) {
  var u, v, Qp, Sp, Tp, Vp, Up;
  var coords = {};
  
  p.x = (p.x - this.x0) * (1.0 / this.a);
  p.y = (p.y - this.y0) * (1.0 / this.a);

  if (this.no_rot) {
    v = p.y;
    u = p.x;
  } else {
    v = p.x * this.cosrot - p.y * this.sinrot;
    u = p.y * this.cosrot + p.x * this.sinrot + this.u_0;
  }
  
  Qp = Math.exp(-this.BrA * v);
  Sp = 0.5 * (Qp - 1 / Qp);
  Tp = 0.5 * (Qp + 1 / Qp);
  Vp = Math.sin(this.BrA * u);
  Up = (Vp * this.cosgam + Sp * this.singam) / Tp;
  
  if (Math.abs(Math.abs(Up) - 1) < _constants_values__WEBPACK_IMPORTED_MODULE_3__.EPSLN) {
    coords.x = 0;
    coords.y = Up < 0 ? -_constants_values__WEBPACK_IMPORTED_MODULE_3__.HALF_PI : _constants_values__WEBPACK_IMPORTED_MODULE_3__.HALF_PI;
  } else {
    coords.y = this.E / Math.sqrt((1 + Up) / (1 - Up));
    coords.y = (0,_common_phi2z__WEBPACK_IMPORTED_MODULE_2__["default"])(this.e, Math.pow(coords.y, 1 / this.B));
    
    if (coords.y === Infinity) {
      throw new Error();
    }
        
    coords.x = -this.rB * Math.atan2((Sp * this.cosgam - Vp * this.singam), Math.cos(this.BrA * u));
  }
  
  coords.x += this.lam0;
  
  return coords;
}

var names = ["Hotine_Oblique_Mercator", "Hotine Oblique Mercator", "Hotine_Oblique_Mercator_Azimuth_Natural_Origin", "Hotine_Oblique_Mercator_Two_Point_Natural_Origin", "Hotine_Oblique_Mercator_Azimuth_Center", "Oblique_Mercator", "omerc"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/ortho.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/ortho.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_asinz__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/asinz */ "./node_modules/proj4/lib/common/asinz.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");




function init() {
  //double temp;      /* temporary variable    */

  /* Place parameters in static storage for common use
      -------------------------------------------------*/
  this.sin_p14 = Math.sin(this.lat0);
  this.cos_p14 = Math.cos(this.lat0);
}

/* Orthographic forward equations--mapping lat,long to x,y
    ---------------------------------------------------*/
function forward(p) {
  var sinphi, cosphi; /* sin and cos value        */
  var dlon; /* delta longitude value      */
  var coslon; /* cos of longitude        */
  var ksp; /* scale factor          */
  var g, x, y;
  var lon = p.x;
  var lat = p.y;
  /* Forward equations
      -----------------*/
  dlon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);

  sinphi = Math.sin(lat);
  cosphi = Math.cos(lat);

  coslon = Math.cos(dlon);
  g = this.sin_p14 * sinphi + this.cos_p14 * cosphi * coslon;
  ksp = 1;
  if ((g > 0) || (Math.abs(g) <= _constants_values__WEBPACK_IMPORTED_MODULE_2__.EPSLN)) {
    x = this.a * ksp * cosphi * Math.sin(dlon);
    y = this.y0 + this.a * ksp * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon);
  }
  p.x = x;
  p.y = y;
  return p;
}

function inverse(p) {
  var rh; /* height above ellipsoid      */
  var z; /* angle          */
  var sinz, cosz; /* sin of z and cos of z      */
  var con;
  var lon, lat;
  /* Inverse equations
      -----------------*/
  p.x -= this.x0;
  p.y -= this.y0;
  rh = Math.sqrt(p.x * p.x + p.y * p.y);
  z = (0,_common_asinz__WEBPACK_IMPORTED_MODULE_1__["default"])(rh / this.a);

  sinz = Math.sin(z);
  cosz = Math.cos(z);

  lon = this.long0;
  if (Math.abs(rh) <= _constants_values__WEBPACK_IMPORTED_MODULE_2__.EPSLN) {
    lat = this.lat0;
    p.x = lon;
    p.y = lat;
    return p;
  }
  lat = (0,_common_asinz__WEBPACK_IMPORTED_MODULE_1__["default"])(cosz * this.sin_p14 + (p.y * sinz * this.cos_p14) / rh);
  con = Math.abs(this.lat0) - _constants_values__WEBPACK_IMPORTED_MODULE_2__.HALF_PI;
  if (Math.abs(con) <= _constants_values__WEBPACK_IMPORTED_MODULE_2__.EPSLN) {
    if (this.lat0 >= 0) {
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + Math.atan2(p.x, - p.y));
    }
    else {
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 - Math.atan2(-p.x, p.y));
    }
    p.x = lon;
    p.y = lat;
    return p;
  }
  lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + Math.atan2((p.x * sinz), rh * this.cos_p14 * cosz - p.y * this.sin_p14 * sinz));
  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["ortho"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/poly.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/poly.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_e0fn__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/e0fn */ "./node_modules/proj4/lib/common/e0fn.js");
/* harmony import */ var _common_e1fn__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/e1fn */ "./node_modules/proj4/lib/common/e1fn.js");
/* harmony import */ var _common_e2fn__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/e2fn */ "./node_modules/proj4/lib/common/e2fn.js");
/* harmony import */ var _common_e3fn__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/e3fn */ "./node_modules/proj4/lib/common/e3fn.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_adjust_lat__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../common/adjust_lat */ "./node_modules/proj4/lib/common/adjust_lat.js");
/* harmony import */ var _common_mlfn__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../common/mlfn */ "./node_modules/proj4/lib/common/mlfn.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _common_gN__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ../common/gN */ "./node_modules/proj4/lib/common/gN.js");










var MAX_ITER = 20;

function init() {
  /* Place parameters in static storage for common use
      -------------------------------------------------*/
  this.temp = this.b / this.a;
  this.es = 1 - Math.pow(this.temp, 2); // devait etre dans tmerc.js mais n y est pas donc je commente sinon retour de valeurs nulles
  this.e = Math.sqrt(this.es);
  this.e0 = (0,_common_e0fn__WEBPACK_IMPORTED_MODULE_0__["default"])(this.es);
  this.e1 = (0,_common_e1fn__WEBPACK_IMPORTED_MODULE_1__["default"])(this.es);
  this.e2 = (0,_common_e2fn__WEBPACK_IMPORTED_MODULE_2__["default"])(this.es);
  this.e3 = (0,_common_e3fn__WEBPACK_IMPORTED_MODULE_3__["default"])(this.es);
  this.ml0 = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_6__["default"])(this.e0, this.e1, this.e2, this.e3, this.lat0); //si que des zeros le calcul ne se fait pas
}

/* Polyconic forward equations--mapping lat,long to x,y
    ---------------------------------------------------*/
function forward(p) {
  var lon = p.x;
  var lat = p.y;
  var x, y, el;
  var dlon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_4__["default"])(lon - this.long0);
  el = dlon * Math.sin(lat);
  if (this.sphere) {
    if (Math.abs(lat) <= _constants_values__WEBPACK_IMPORTED_MODULE_7__.EPSLN) {
      x = this.a * dlon;
      y = -1 * this.a * this.lat0;
    }
    else {
      x = this.a * Math.sin(el) / Math.tan(lat);
      y = this.a * ((0,_common_adjust_lat__WEBPACK_IMPORTED_MODULE_5__["default"])(lat - this.lat0) + (1 - Math.cos(el)) / Math.tan(lat));
    }
  }
  else {
    if (Math.abs(lat) <= _constants_values__WEBPACK_IMPORTED_MODULE_7__.EPSLN) {
      x = this.a * dlon;
      y = -1 * this.ml0;
    }
    else {
      var nl = (0,_common_gN__WEBPACK_IMPORTED_MODULE_8__["default"])(this.a, this.e, Math.sin(lat)) / Math.tan(lat);
      x = nl * Math.sin(el);
      y = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_6__["default"])(this.e0, this.e1, this.e2, this.e3, lat) - this.ml0 + nl * (1 - Math.cos(el));
    }

  }
  p.x = x + this.x0;
  p.y = y + this.y0;
  return p;
}

/* Inverse equations
  -----------------*/
function inverse(p) {
  var lon, lat, x, y, i;
  var al, bl;
  var phi, dphi;
  x = p.x - this.x0;
  y = p.y - this.y0;

  if (this.sphere) {
    if (Math.abs(y + this.a * this.lat0) <= _constants_values__WEBPACK_IMPORTED_MODULE_7__.EPSLN) {
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_4__["default"])(x / this.a + this.long0);
      lat = 0;
    }
    else {
      al = this.lat0 + y / this.a;
      bl = x * x / this.a / this.a + al * al;
      phi = al;
      var tanphi;
      for (i = MAX_ITER; i; --i) {
        tanphi = Math.tan(phi);
        dphi = -1 * (al * (phi * tanphi + 1) - phi - 0.5 * (phi * phi + bl) * tanphi) / ((phi - al) / tanphi - 1);
        phi += dphi;
        if (Math.abs(dphi) <= _constants_values__WEBPACK_IMPORTED_MODULE_7__.EPSLN) {
          lat = phi;
          break;
        }
      }
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_4__["default"])(this.long0 + (Math.asin(x * Math.tan(phi) / this.a)) / Math.sin(lat));
    }
  }
  else {
    if (Math.abs(y + this.ml0) <= _constants_values__WEBPACK_IMPORTED_MODULE_7__.EPSLN) {
      lat = 0;
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_4__["default"])(this.long0 + x / this.a);
    }
    else {

      al = (this.ml0 + y) / this.a;
      bl = x * x / this.a / this.a + al * al;
      phi = al;
      var cl, mln, mlnp, ma;
      var con;
      for (i = MAX_ITER; i; --i) {
        con = this.e * Math.sin(phi);
        cl = Math.sqrt(1 - con * con) * Math.tan(phi);
        mln = this.a * (0,_common_mlfn__WEBPACK_IMPORTED_MODULE_6__["default"])(this.e0, this.e1, this.e2, this.e3, phi);
        mlnp = this.e0 - 2 * this.e1 * Math.cos(2 * phi) + 4 * this.e2 * Math.cos(4 * phi) - 6 * this.e3 * Math.cos(6 * phi);
        ma = mln / this.a;
        dphi = (al * (cl * ma + 1) - ma - 0.5 * cl * (ma * ma + bl)) / (this.es * Math.sin(2 * phi) * (ma * ma + bl - 2 * al * ma) / (4 * cl) + (al - ma) * (cl * mlnp - 2 / Math.sin(2 * phi)) - mlnp);
        phi -= dphi;
        if (Math.abs(dphi) <= _constants_values__WEBPACK_IMPORTED_MODULE_7__.EPSLN) {
          lat = phi;
          break;
        }
      }

      //lat=phi4z(this.e,this.e0,this.e1,this.e2,this.e3,al,bl,0,0);
      cl = Math.sqrt(1 - this.es * Math.pow(Math.sin(lat), 2)) * Math.tan(lat);
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_4__["default"])(this.long0 + Math.asin(x * cl / this.a) / Math.sin(lat));
    }
  }

  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["Polyconic", "poly"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/qsc.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/projections/qsc.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
// QSC projection rewritten from the original PROJ4
// https://github.com/OSGeo/proj.4/blob/master/src/PJ_qsc.c



/* constants */
var FACE_ENUM = {
    FRONT: 1,
    RIGHT: 2,
    BACK: 3,
    LEFT: 4,
    TOP: 5,
    BOTTOM: 6
};

var AREA_ENUM = {
    AREA_0: 1,
    AREA_1: 2,
    AREA_2: 3,
    AREA_3: 4
};

function init() {

  this.x0 = this.x0 || 0;
  this.y0 = this.y0 || 0;
  this.lat0 = this.lat0 || 0;
  this.long0 = this.long0 || 0;
  this.lat_ts = this.lat_ts || 0;
  this.title = this.title || "Quadrilateralized Spherical Cube";

  /* Determine the cube face from the center of projection. */
  if (this.lat0 >= _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI - _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI / 2.0) {
    this.face = FACE_ENUM.TOP;
  } else if (this.lat0 <= -(_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI - _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI / 2.0)) {
    this.face = FACE_ENUM.BOTTOM;
  } else if (Math.abs(this.long0) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI) {
    this.face = FACE_ENUM.FRONT;
  } else if (Math.abs(this.long0) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI) {
    this.face = this.long0 > 0.0 ? FACE_ENUM.RIGHT : FACE_ENUM.LEFT;
  } else {
    this.face = FACE_ENUM.BACK;
  }

  /* Fill in useful values for the ellipsoid <-> sphere shift
   * described in [LK12]. */
  if (this.es !== 0) {
    this.one_minus_f = 1 - (this.a - this.b) / this.a;
    this.one_minus_f_squared = this.one_minus_f * this.one_minus_f;
  }
}

// QSC forward equations--mapping lat,long to x,y
// -----------------------------------------------------------------
function forward(p) {
  var xy = {x: 0, y: 0};
  var lat, lon;
  var theta, phi;
  var t, mu;
  /* nu; */
  var area = {value: 0};

  // move lon according to projection's lon
  p.x -= this.long0;

  /* Convert the geodetic latitude to a geocentric latitude.
   * This corresponds to the shift from the ellipsoid to the sphere
   * described in [LK12]. */
  if (this.es !== 0) {//if (P->es != 0) {
    lat = Math.atan(this.one_minus_f_squared * Math.tan(p.y));
  } else {
    lat = p.y;
  }

  /* Convert the input lat, lon into theta, phi as used by QSC.
   * This depends on the cube face and the area on it.
   * For the top and bottom face, we can compute theta and phi
   * directly from phi, lam. For the other faces, we must use
   * unit sphere cartesian coordinates as an intermediate step. */
  lon = p.x; //lon = lp.lam;
  if (this.face === FACE_ENUM.TOP) {
    phi = _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI - lat;
    if (lon >= _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI && lon <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI) {
      area.value = AREA_ENUM.AREA_0;
      theta = lon - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else if (lon > _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI || lon <= -(_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI)) {
      area.value = AREA_ENUM.AREA_1;
      theta = (lon > 0.0 ? lon - _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI : lon + _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI);
    } else if (lon > -(_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI) && lon <= -_constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI) {
      area.value = AREA_ENUM.AREA_2;
      theta = lon + _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else {
      area.value = AREA_ENUM.AREA_3;
      theta = lon;
    }
  } else if (this.face === FACE_ENUM.BOTTOM) {
    phi = _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + lat;
    if (lon >= _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI && lon <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI) {
      area.value = AREA_ENUM.AREA_0;
      theta = -lon + _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else if (lon < _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI && lon >= -_constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI) {
      area.value = AREA_ENUM.AREA_1;
      theta = -lon;
    } else if (lon < -_constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI && lon >= -(_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI)) {
      area.value = AREA_ENUM.AREA_2;
      theta = -lon - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else {
      area.value = AREA_ENUM.AREA_3;
      theta = (lon > 0.0 ? -lon + _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI : -lon - _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI);
    }
  } else {
    var q, r, s;
    var sinlat, coslat;
    var sinlon, coslon;

    if (this.face === FACE_ENUM.RIGHT) {
      lon = qsc_shift_lon_origin(lon, +_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI);
    } else if (this.face === FACE_ENUM.BACK) {
      lon = qsc_shift_lon_origin(lon, +_constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI);
    } else if (this.face === FACE_ENUM.LEFT) {
      lon = qsc_shift_lon_origin(lon, -_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI);
    }
    sinlat = Math.sin(lat);
    coslat = Math.cos(lat);
    sinlon = Math.sin(lon);
    coslon = Math.cos(lon);
    q = coslat * coslon;
    r = coslat * sinlon;
    s = sinlat;

    if (this.face === FACE_ENUM.FRONT) {
      phi = Math.acos(q);
      theta = qsc_fwd_equat_face_theta(phi, s, r, area);
    } else if (this.face === FACE_ENUM.RIGHT) {
      phi = Math.acos(r);
      theta = qsc_fwd_equat_face_theta(phi, s, -q, area);
    } else if (this.face === FACE_ENUM.BACK) {
      phi = Math.acos(-q);
      theta = qsc_fwd_equat_face_theta(phi, s, -r, area);
    } else if (this.face === FACE_ENUM.LEFT) {
      phi = Math.acos(-r);
      theta = qsc_fwd_equat_face_theta(phi, s, q, area);
    } else {
      /* Impossible */
      phi = theta = 0;
      area.value = AREA_ENUM.AREA_0;
    }
  }

  /* Compute mu and nu for the area of definition.
   * For mu, see Eq. (3-21) in [OL76], but note the typos:
   * compare with Eq. (3-14). For nu, see Eq. (3-38). */
  mu = Math.atan((12 / _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI) * (theta + Math.acos(Math.sin(theta) * Math.cos(_constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI)) - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI));
  t = Math.sqrt((1 - Math.cos(phi)) / (Math.cos(mu) * Math.cos(mu)) / (1 - Math.cos(Math.atan(1 / Math.cos(theta)))));

  /* Apply the result to the real area. */
  if (area.value === AREA_ENUM.AREA_1) {
    mu += _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
  } else if (area.value === AREA_ENUM.AREA_2) {
    mu += _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI;
  } else if (area.value === AREA_ENUM.AREA_3) {
    mu += 1.5 * _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI;
  }

  /* Now compute x, y from mu and nu */
  xy.x = t * Math.cos(mu);
  xy.y = t * Math.sin(mu);
  xy.x = xy.x * this.a + this.x0;
  xy.y = xy.y * this.a + this.y0;

  p.x = xy.x;
  p.y = xy.y;
  return p;
}

// QSC inverse equations--mapping x,y to lat/long
// -----------------------------------------------------------------
function inverse(p) {
  var lp = {lam: 0, phi: 0};
  var mu, nu, cosmu, tannu;
  var tantheta, theta, cosphi, phi;
  var t;
  var area = {value: 0};

  /* de-offset */
  p.x = (p.x - this.x0) / this.a;
  p.y = (p.y - this.y0) / this.a;

  /* Convert the input x, y to the mu and nu angles as used by QSC.
   * This depends on the area of the cube face. */
  nu = Math.atan(Math.sqrt(p.x * p.x + p.y * p.y));
  mu = Math.atan2(p.y, p.x);
  if (p.x >= 0.0 && p.x >= Math.abs(p.y)) {
    area.value = AREA_ENUM.AREA_0;
  } else if (p.y >= 0.0 && p.y >= Math.abs(p.x)) {
    area.value = AREA_ENUM.AREA_1;
    mu -= _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
  } else if (p.x < 0.0 && -p.x >= Math.abs(p.y)) {
    area.value = AREA_ENUM.AREA_2;
    mu = (mu < 0.0 ? mu + _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI : mu - _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI);
  } else {
    area.value = AREA_ENUM.AREA_3;
    mu += _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
  }

  /* Compute phi and theta for the area of definition.
   * The inverse projection is not described in the original paper, but some
   * good hints can be found here (as of 2011-12-14):
   * http://fits.gsfc.nasa.gov/fitsbits/saf.93/saf.9302
   * (search for "Message-Id: <9302181759.AA25477 at fits.cv.nrao.edu>") */
  t = (_constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI / 12) * Math.tan(mu);
  tantheta = Math.sin(t) / (Math.cos(t) - (1 / Math.sqrt(2)));
  theta = Math.atan(tantheta);
  cosmu = Math.cos(mu);
  tannu = Math.tan(nu);
  cosphi = 1 - cosmu * cosmu * tannu * tannu * (1 - Math.cos(Math.atan(1 / Math.cos(theta))));
  if (cosphi < -1) {
    cosphi = -1;
  } else if (cosphi > +1) {
    cosphi = +1;
  }

  /* Apply the result to the real area on the cube face.
   * For the top and bottom face, we can compute phi and lam directly.
   * For the other faces, we must use unit sphere cartesian coordinates
   * as an intermediate step. */
  if (this.face === FACE_ENUM.TOP) {
    phi = Math.acos(cosphi);
    lp.phi = _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI - phi;
    if (area.value === AREA_ENUM.AREA_0) {
      lp.lam = theta + _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else if (area.value === AREA_ENUM.AREA_1) {
      lp.lam = (theta < 0.0 ? theta + _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI : theta - _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI);
    } else if (area.value === AREA_ENUM.AREA_2) {
      lp.lam = theta - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else /* area.value == AREA_ENUM.AREA_3 */ {
      lp.lam = theta;
    }
  } else if (this.face === FACE_ENUM.BOTTOM) {
    phi = Math.acos(cosphi);
    lp.phi = phi - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    if (area.value === AREA_ENUM.AREA_0) {
      lp.lam = -theta + _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else if (area.value === AREA_ENUM.AREA_1) {
      lp.lam = -theta;
    } else if (area.value === AREA_ENUM.AREA_2) {
      lp.lam = -theta - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else /* area.value == AREA_ENUM.AREA_3 */ {
      lp.lam = (theta < 0.0 ? -theta - _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI : -theta + _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI);
    }
  } else {
    /* Compute phi and lam via cartesian unit sphere coordinates. */
    var q, r, s;
    q = cosphi;
    t = q * q;
    if (t >= 1) {
      s = 0;
    } else {
      s = Math.sqrt(1 - t) * Math.sin(theta);
    }
    t += s * s;
    if (t >= 1) {
      r = 0;
    } else {
      r = Math.sqrt(1 - t);
    }
    /* Rotate q,r,s into the correct area. */
    if (area.value === AREA_ENUM.AREA_1) {
      t = r;
      r = -s;
      s = t;
    } else if (area.value === AREA_ENUM.AREA_2) {
      r = -r;
      s = -s;
    } else if (area.value === AREA_ENUM.AREA_3) {
      t = r;
      r = s;
      s = -t;
    }
    /* Rotate q,r,s into the correct cube face. */
    if (this.face === FACE_ENUM.RIGHT) {
      t = q;
      q = -r;
      r = t;
    } else if (this.face === FACE_ENUM.BACK) {
      q = -q;
      r = -r;
    } else if (this.face === FACE_ENUM.LEFT) {
      t = q;
      q = r;
      r = -t;
    }
    /* Now compute phi and lam from the unit sphere coordinates. */
    lp.phi = Math.acos(-s) - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    lp.lam = Math.atan2(r, q);
    if (this.face === FACE_ENUM.RIGHT) {
      lp.lam = qsc_shift_lon_origin(lp.lam, -_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI);
    } else if (this.face === FACE_ENUM.BACK) {
      lp.lam = qsc_shift_lon_origin(lp.lam, -_constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI);
    } else if (this.face === FACE_ENUM.LEFT) {
      lp.lam = qsc_shift_lon_origin(lp.lam, +_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI);
    }
  }

  /* Apply the shift from the sphere to the ellipsoid as described
   * in [LK12]. */
  if (this.es !== 0) {
    var invert_sign;
    var tanphi, xa;
    invert_sign = (lp.phi < 0 ? 1 : 0);
    tanphi = Math.tan(lp.phi);
    xa = this.b / Math.sqrt(tanphi * tanphi + this.one_minus_f_squared);
    lp.phi = Math.atan(Math.sqrt(this.a * this.a - xa * xa) / (this.one_minus_f * xa));
    if (invert_sign) {
      lp.phi = -lp.phi;
    }
  }

  lp.lam += this.long0;
  p.x = lp.lam;
  p.y = lp.phi;
  return p;
}

/* Helper function for forward projection: compute the theta angle
 * and determine the area number. */
function qsc_fwd_equat_face_theta(phi, y, x, area) {
  var theta;
  if (phi < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
    area.value = AREA_ENUM.AREA_0;
    theta = 0.0;
  } else {
    theta = Math.atan2(y, x);
    if (Math.abs(theta) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI) {
      area.value = AREA_ENUM.AREA_0;
    } else if (theta > _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI && theta <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI) {
      area.value = AREA_ENUM.AREA_1;
      theta -= _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else if (theta > _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI || theta <= -(_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + _constants_values__WEBPACK_IMPORTED_MODULE_0__.FORTPI)) {
      area.value = AREA_ENUM.AREA_2;
      theta = (theta >= 0.0 ? theta - _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI : theta + _constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI);
    } else {
      area.value = AREA_ENUM.AREA_3;
      theta += _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    }
  }
  return theta;
}

/* Helper function: shift the longitude. */
function qsc_shift_lon_origin(lon, offset) {
  var slon = lon + offset;
  if (slon < -_constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI) {
    slon += _constants_values__WEBPACK_IMPORTED_MODULE_0__.TWO_PI;
  } else if (slon > +_constants_values__WEBPACK_IMPORTED_MODULE_0__.SPI) {
    slon -= _constants_values__WEBPACK_IMPORTED_MODULE_0__.TWO_PI;
  }
  return slon;
}

var names = ["Quadrilateralized Spherical Cube", "Quadrilateralized_Spherical_Cube", "qsc"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});



/***/ }),

/***/ "./node_modules/proj4/lib/projections/robin.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/robin.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
// Robinson projection
// Based on https://github.com/OSGeo/proj.4/blob/master/src/PJ_robin.c
// Polynomial coeficients from http://article.gmane.org/gmane.comp.gis.proj-4.devel/6039




var COEFS_X = [
    [1.0000, 2.2199e-17, -7.15515e-05, 3.1103e-06],
    [0.9986, -0.000482243, -2.4897e-05, -1.3309e-06],
    [0.9954, -0.00083103, -4.48605e-05, -9.86701e-07],
    [0.9900, -0.00135364, -5.9661e-05, 3.6777e-06],
    [0.9822, -0.00167442, -4.49547e-06, -5.72411e-06],
    [0.9730, -0.00214868, -9.03571e-05, 1.8736e-08],
    [0.9600, -0.00305085, -9.00761e-05, 1.64917e-06],
    [0.9427, -0.00382792, -6.53386e-05, -2.6154e-06],
    [0.9216, -0.00467746, -0.00010457, 4.81243e-06],
    [0.8962, -0.00536223, -3.23831e-05, -5.43432e-06],
    [0.8679, -0.00609363, -0.000113898, 3.32484e-06],
    [0.8350, -0.00698325, -6.40253e-05, 9.34959e-07],
    [0.7986, -0.00755338, -5.00009e-05, 9.35324e-07],
    [0.7597, -0.00798324, -3.5971e-05, -2.27626e-06],
    [0.7186, -0.00851367, -7.01149e-05, -8.6303e-06],
    [0.6732, -0.00986209, -0.000199569, 1.91974e-05],
    [0.6213, -0.010418, 8.83923e-05, 6.24051e-06],
    [0.5722, -0.00906601, 0.000182, 6.24051e-06],
    [0.5322, -0.00677797, 0.000275608, 6.24051e-06]
];

var COEFS_Y = [
    [-5.20417e-18, 0.0124, 1.21431e-18, -8.45284e-11],
    [0.0620, 0.0124, -1.26793e-09, 4.22642e-10],
    [0.1240, 0.0124, 5.07171e-09, -1.60604e-09],
    [0.1860, 0.0123999, -1.90189e-08, 6.00152e-09],
    [0.2480, 0.0124002, 7.10039e-08, -2.24e-08],
    [0.3100, 0.0123992, -2.64997e-07, 8.35986e-08],
    [0.3720, 0.0124029, 9.88983e-07, -3.11994e-07],
    [0.4340, 0.0123893, -3.69093e-06, -4.35621e-07],
    [0.4958, 0.0123198, -1.02252e-05, -3.45523e-07],
    [0.5571, 0.0121916, -1.54081e-05, -5.82288e-07],
    [0.6176, 0.0119938, -2.41424e-05, -5.25327e-07],
    [0.6769, 0.011713, -3.20223e-05, -5.16405e-07],
    [0.7346, 0.0113541, -3.97684e-05, -6.09052e-07],
    [0.7903, 0.0109107, -4.89042e-05, -1.04739e-06],
    [0.8435, 0.0103431, -6.4615e-05, -1.40374e-09],
    [0.8936, 0.00969686, -6.4636e-05, -8.547e-06],
    [0.9394, 0.00840947, -0.000192841, -4.2106e-06],
    [0.9761, 0.00616527, -0.000256, -4.2106e-06],
    [1.0000, 0.00328947, -0.000319159, -4.2106e-06]
];

var FXC = 0.8487;
var FYC = 1.3523;
var C1 = _constants_values__WEBPACK_IMPORTED_MODULE_0__.R2D/5; // rad to 5-degree interval
var RC1 = 1/C1;
var NODES = 18;

var poly3_val = function(coefs, x) {
    return coefs[0] + x * (coefs[1] + x * (coefs[2] + x * coefs[3]));
};

var poly3_der = function(coefs, x) {
    return coefs[1] + x * (2 * coefs[2] + x * 3 * coefs[3]);
};

function newton_rapshon(f_df, start, max_err, iters) {
    var x = start;
    for (; iters; --iters) {
        var upd = f_df(x);
        x -= upd;
        if (Math.abs(upd) < max_err) {
            break;
        }
    }
    return x;
}

function init() {
    this.x0 = this.x0 || 0;
    this.y0 = this.y0 || 0;
    this.long0 = this.long0 || 0;
    this.es = 0;
    this.title = this.title || "Robinson";
}

function forward(ll) {
    var lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__["default"])(ll.x - this.long0);

    var dphi = Math.abs(ll.y);
    var i = Math.floor(dphi * C1);
    if (i < 0) {
        i = 0;
    } else if (i >= NODES) {
        i = NODES - 1;
    }
    dphi = _constants_values__WEBPACK_IMPORTED_MODULE_0__.R2D * (dphi - RC1 * i);
    var xy = {
        x: poly3_val(COEFS_X[i], dphi) * lon,
        y: poly3_val(COEFS_Y[i], dphi)
    };
    if (ll.y < 0) {
        xy.y = -xy.y;
    }

    xy.x = xy.x * this.a * FXC + this.x0;
    xy.y = xy.y * this.a * FYC + this.y0;
    return xy;
}

function inverse(xy) {
    var ll = {
        x: (xy.x - this.x0) / (this.a * FXC),
        y: Math.abs(xy.y - this.y0) / (this.a * FYC)
    };

    if (ll.y >= 1) { // pathologic case
        ll.x /= COEFS_X[NODES][0];
        ll.y = xy.y < 0 ? -_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI : _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    } else {
        // find table interval
        var i = Math.floor(ll.y * NODES);
        if (i < 0) {
            i = 0;
        } else if (i >= NODES) {
            i = NODES - 1;
        }
        for (;;) {
            if (COEFS_Y[i][0] > ll.y) {
                --i;
            } else if (COEFS_Y[i+1][0] <= ll.y) {
                ++i;
            } else {
                break;
            }
        }
        // linear interpolation in 5 degree interval
        var coefs = COEFS_Y[i];
        var t = 5 * (ll.y - coefs[0]) / (COEFS_Y[i+1][0] - coefs[0]);
        // find t so that poly3_val(coefs, t) = ll.y
        t = newton_rapshon(function(x) {
            return (poly3_val(coefs, x) - ll.y) / poly3_der(coefs, x);
        }, t, _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN, 100);

        ll.x /= poly3_val(COEFS_X[i], t);
        ll.y = (5 * i + t) * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
        if (xy.y < 0) {
            ll.y = -ll.y;
        }
    }

    ll.x = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__["default"])(ll.x + this.long0);
    return ll;
}

var names = ["Robinson", "robin"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/sinu.js":
/*!****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/sinu.js ***!
  \****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _common_adjust_lat__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/adjust_lat */ "./node_modules/proj4/lib/common/adjust_lat.js");
/* harmony import */ var _common_pj_enfn__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/pj_enfn */ "./node_modules/proj4/lib/common/pj_enfn.js");
/* harmony import */ var _common_pj_mlfn__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/pj_mlfn */ "./node_modules/proj4/lib/common/pj_mlfn.js");
/* harmony import */ var _common_pj_inv_mlfn__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../common/pj_inv_mlfn */ "./node_modules/proj4/lib/common/pj_inv_mlfn.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _common_asinz__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ../common/asinz */ "./node_modules/proj4/lib/common/asinz.js");



var MAX_ITER = 20;







function init() {
  /* Place parameters in static storage for common use
    -------------------------------------------------*/


  if (!this.sphere) {
    this.en = (0,_common_pj_enfn__WEBPACK_IMPORTED_MODULE_2__["default"])(this.es);
  }
  else {
    this.n = 1;
    this.m = 0;
    this.es = 0;
    this.C_y = Math.sqrt((this.m + 1) / this.n);
    this.C_x = this.C_y / (this.m + 1);
  }

}

/* Sinusoidal forward equations--mapping lat,long to x,y
  -----------------------------------------------------*/
function forward(p) {
  var x, y;
  var lon = p.x;
  var lat = p.y;
  /* Forward equations
    -----------------*/
  lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);

  if (this.sphere) {
    if (!this.m) {
      lat = this.n !== 1 ? Math.asin(this.n * Math.sin(lat)) : lat;
    }
    else {
      var k = this.n * Math.sin(lat);
      for (var i = MAX_ITER; i; --i) {
        var V = (this.m * lat + Math.sin(lat) - k) / (this.m + Math.cos(lat));
        lat -= V;
        if (Math.abs(V) < _constants_values__WEBPACK_IMPORTED_MODULE_5__.EPSLN) {
          break;
        }
      }
    }
    x = this.a * this.C_x * lon * (this.m + Math.cos(lat));
    y = this.a * this.C_y * lat;

  }
  else {

    var s = Math.sin(lat);
    var c = Math.cos(lat);
    y = this.a * (0,_common_pj_mlfn__WEBPACK_IMPORTED_MODULE_3__["default"])(lat, s, c, this.en);
    x = this.a * lon * c / Math.sqrt(1 - this.es * s * s);
  }

  p.x = x;
  p.y = y;
  return p;
}

function inverse(p) {
  var lat, temp, lon, s;

  p.x -= this.x0;
  lon = p.x / this.a;
  p.y -= this.y0;
  lat = p.y / this.a;

  if (this.sphere) {
    lat /= this.C_y;
    lon = lon / (this.C_x * (this.m + Math.cos(lat)));
    if (this.m) {
      lat = (0,_common_asinz__WEBPACK_IMPORTED_MODULE_6__["default"])((this.m * lat + Math.sin(lat)) / this.n);
    }
    else if (this.n !== 1) {
      lat = (0,_common_asinz__WEBPACK_IMPORTED_MODULE_6__["default"])(Math.sin(lat) / this.n);
    }
    lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon + this.long0);
    lat = (0,_common_adjust_lat__WEBPACK_IMPORTED_MODULE_1__["default"])(lat);
  }
  else {
    lat = (0,_common_pj_inv_mlfn__WEBPACK_IMPORTED_MODULE_4__["default"])(p.y / this.a, this.es, this.en);
    s = Math.abs(lat);
    if (s < _constants_values__WEBPACK_IMPORTED_MODULE_5__.HALF_PI) {
      s = Math.sin(lat);
      temp = this.long0 + p.x * Math.sqrt(1 - this.es * s * s) / (this.a * Math.cos(lat));
      //temp = this.long0 + p.x / (this.a * Math.cos(lat));
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(temp);
    }
    else if ((s - _constants_values__WEBPACK_IMPORTED_MODULE_5__.EPSLN) < _constants_values__WEBPACK_IMPORTED_MODULE_5__.HALF_PI) {
      lon = this.long0;
    }
  }
  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["Sinusoidal", "sinu"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/somerc.js":
/*!******************************************************!*\
  !*** ./node_modules/proj4/lib/projections/somerc.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/*
  references:
    Formules et constantes pour le Calcul pour la
    projection cylindrique conforme à axe oblique et pour la transformation entre
    des systèmes de référence.
    http://www.swisstopo.admin.ch/internet/swisstopo/fr/home/topics/survey/sys/refsys/switzerland.parsysrelated1.31216.downloadList.77004.DownloadFile.tmp/swissprojectionfr.pdf
  */

function init() {
  var phy0 = this.lat0;
  this.lambda0 = this.long0;
  var sinPhy0 = Math.sin(phy0);
  var semiMajorAxis = this.a;
  var invF = this.rf;
  var flattening = 1 / invF;
  var e2 = 2 * flattening - Math.pow(flattening, 2);
  var e = this.e = Math.sqrt(e2);
  this.R = this.k0 * semiMajorAxis * Math.sqrt(1 - e2) / (1 - e2 * Math.pow(sinPhy0, 2));
  this.alpha = Math.sqrt(1 + e2 / (1 - e2) * Math.pow(Math.cos(phy0), 4));
  this.b0 = Math.asin(sinPhy0 / this.alpha);
  var k1 = Math.log(Math.tan(Math.PI / 4 + this.b0 / 2));
  var k2 = Math.log(Math.tan(Math.PI / 4 + phy0 / 2));
  var k3 = Math.log((1 + e * sinPhy0) / (1 - e * sinPhy0));
  this.K = k1 - this.alpha * k2 + this.alpha * e / 2 * k3;
}

function forward(p) {
  var Sa1 = Math.log(Math.tan(Math.PI / 4 - p.y / 2));
  var Sa2 = this.e / 2 * Math.log((1 + this.e * Math.sin(p.y)) / (1 - this.e * Math.sin(p.y)));
  var S = -this.alpha * (Sa1 + Sa2) + this.K;

  // spheric latitude
  var b = 2 * (Math.atan(Math.exp(S)) - Math.PI / 4);

  // spheric longitude
  var I = this.alpha * (p.x - this.lambda0);

  // psoeudo equatorial rotation
  var rotI = Math.atan(Math.sin(I) / (Math.sin(this.b0) * Math.tan(b) + Math.cos(this.b0) * Math.cos(I)));

  var rotB = Math.asin(Math.cos(this.b0) * Math.sin(b) - Math.sin(this.b0) * Math.cos(b) * Math.cos(I));

  p.y = this.R / 2 * Math.log((1 + Math.sin(rotB)) / (1 - Math.sin(rotB))) + this.y0;
  p.x = this.R * rotI + this.x0;
  return p;
}

function inverse(p) {
  var Y = p.x - this.x0;
  var X = p.y - this.y0;

  var rotI = Y / this.R;
  var rotB = 2 * (Math.atan(Math.exp(X / this.R)) - Math.PI / 4);

  var b = Math.asin(Math.cos(this.b0) * Math.sin(rotB) + Math.sin(this.b0) * Math.cos(rotB) * Math.cos(rotI));
  var I = Math.atan(Math.sin(rotI) / (Math.cos(this.b0) * Math.cos(rotI) - Math.sin(this.b0) * Math.tan(rotB)));

  var lambda = this.lambda0 + I / this.alpha;

  var S = 0;
  var phy = b;
  var prevPhy = -1000;
  var iteration = 0;
  while (Math.abs(phy - prevPhy) > 0.0000001) {
    if (++iteration > 20) {
      //...reportError("omercFwdInfinity");
      return;
    }
    //S = Math.log(Math.tan(Math.PI / 4 + phy / 2));
    S = 1 / this.alpha * (Math.log(Math.tan(Math.PI / 4 + b / 2)) - this.K) + this.e * Math.log(Math.tan(Math.PI / 4 + Math.asin(this.e * Math.sin(phy)) / 2));
    prevPhy = phy;
    phy = 2 * Math.atan(Math.exp(S)) - Math.PI / 2;
  }

  p.x = lambda;
  p.y = phy;
  return p;
}

var names = ["somerc"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/stere.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/stere.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "ssfn_": () => (/* binding */ ssfn_),
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _common_sign__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/sign */ "./node_modules/proj4/lib/common/sign.js");
/* harmony import */ var _common_msfnz__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/msfnz */ "./node_modules/proj4/lib/common/msfnz.js");
/* harmony import */ var _common_tsfnz__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/tsfnz */ "./node_modules/proj4/lib/common/tsfnz.js");
/* harmony import */ var _common_phi2z__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../common/phi2z */ "./node_modules/proj4/lib/common/phi2z.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");








function ssfn_(phit, sinphi, eccen) {
  sinphi *= eccen;
  return (Math.tan(0.5 * (_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + phit)) * Math.pow((1 - sinphi) / (1 + sinphi), 0.5 * eccen));
}

function init() {
  this.coslat0 = Math.cos(this.lat0);
  this.sinlat0 = Math.sin(this.lat0);
  if (this.sphere) {
    if (this.k0 === 1 && !isNaN(this.lat_ts) && Math.abs(this.coslat0) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
      this.k0 = 0.5 * (1 + (0,_common_sign__WEBPACK_IMPORTED_MODULE_1__["default"])(this.lat0) * Math.sin(this.lat_ts));
    }
  }
  else {
    if (Math.abs(this.coslat0) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
      if (this.lat0 > 0) {
        //North pole
        //trace('stere:north pole');
        this.con = 1;
      }
      else {
        //South pole
        //trace('stere:south pole');
        this.con = -1;
      }
    }
    this.cons = Math.sqrt(Math.pow(1 + this.e, 1 + this.e) * Math.pow(1 - this.e, 1 - this.e));
    if (this.k0 === 1 && !isNaN(this.lat_ts) && Math.abs(this.coslat0) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
      this.k0 = 0.5 * this.cons * (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_2__["default"])(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts)) / (0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_3__["default"])(this.e, this.con * this.lat_ts, this.con * Math.sin(this.lat_ts));
    }
    this.ms1 = (0,_common_msfnz__WEBPACK_IMPORTED_MODULE_2__["default"])(this.e, this.sinlat0, this.coslat0);
    this.X0 = 2 * Math.atan(this.ssfn_(this.lat0, this.sinlat0, this.e)) - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    this.cosX0 = Math.cos(this.X0);
    this.sinX0 = Math.sin(this.X0);
  }
}

// Stereographic forward equations--mapping lat,long to x,y
function forward(p) {
  var lon = p.x;
  var lat = p.y;
  var sinlat = Math.sin(lat);
  var coslat = Math.cos(lat);
  var A, X, sinX, cosX, ts, rh;
  var dlon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_5__["default"])(lon - this.long0);

  if (Math.abs(Math.abs(lon - this.long0) - Math.PI) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN && Math.abs(lat + this.lat0) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
    //case of the origine point
    //trace('stere:this is the origin point');
    p.x = NaN;
    p.y = NaN;
    return p;
  }
  if (this.sphere) {
    //trace('stere:sphere case');
    A = 2 * this.k0 / (1 + this.sinlat0 * sinlat + this.coslat0 * coslat * Math.cos(dlon));
    p.x = this.a * A * coslat * Math.sin(dlon) + this.x0;
    p.y = this.a * A * (this.coslat0 * sinlat - this.sinlat0 * coslat * Math.cos(dlon)) + this.y0;
    return p;
  }
  else {
    X = 2 * Math.atan(this.ssfn_(lat, sinlat, this.e)) - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI;
    cosX = Math.cos(X);
    sinX = Math.sin(X);
    if (Math.abs(this.coslat0) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
      ts = (0,_common_tsfnz__WEBPACK_IMPORTED_MODULE_3__["default"])(this.e, lat * this.con, this.con * sinlat);
      rh = 2 * this.a * this.k0 * ts / this.cons;
      p.x = this.x0 + rh * Math.sin(lon - this.long0);
      p.y = this.y0 - this.con * rh * Math.cos(lon - this.long0);
      //trace(p.toString());
      return p;
    }
    else if (Math.abs(this.sinlat0) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
      //Eq
      //trace('stere:equateur');
      A = 2 * this.a * this.k0 / (1 + cosX * Math.cos(dlon));
      p.y = A * sinX;
    }
    else {
      //other case
      //trace('stere:normal case');
      A = 2 * this.a * this.k0 * this.ms1 / (this.cosX0 * (1 + this.sinX0 * sinX + this.cosX0 * cosX * Math.cos(dlon)));
      p.y = A * (this.cosX0 * sinX - this.sinX0 * cosX * Math.cos(dlon)) + this.y0;
    }
    p.x = A * cosX * Math.sin(dlon) + this.x0;
  }
  //trace(p.toString());
  return p;
}

//* Stereographic inverse equations--mapping x,y to lat/long
function inverse(p) {
  p.x -= this.x0;
  p.y -= this.y0;
  var lon, lat, ts, ce, Chi;
  var rh = Math.sqrt(p.x * p.x + p.y * p.y);
  if (this.sphere) {
    var c = 2 * Math.atan(rh / (2 * this.a * this.k0));
    lon = this.long0;
    lat = this.lat0;
    if (rh <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
      p.x = lon;
      p.y = lat;
      return p;
    }
    lat = Math.asin(Math.cos(c) * this.sinlat0 + p.y * Math.sin(c) * this.coslat0 / rh);
    if (Math.abs(this.coslat0) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
      if (this.lat0 > 0) {
        lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_5__["default"])(this.long0 + Math.atan2(p.x, - 1 * p.y));
      }
      else {
        lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_5__["default"])(this.long0 + Math.atan2(p.x, p.y));
      }
    }
    else {
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_5__["default"])(this.long0 + Math.atan2(p.x * Math.sin(c), rh * this.coslat0 * Math.cos(c) - p.y * this.sinlat0 * Math.sin(c)));
    }
    p.x = lon;
    p.y = lat;
    return p;
  }
  else {
    if (Math.abs(this.coslat0) <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
      if (rh <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
        lat = this.lat0;
        lon = this.long0;
        p.x = lon;
        p.y = lat;
        //trace(p.toString());
        return p;
      }
      p.x *= this.con;
      p.y *= this.con;
      ts = rh * this.cons / (2 * this.a * this.k0);
      lat = this.con * (0,_common_phi2z__WEBPACK_IMPORTED_MODULE_4__["default"])(this.e, ts);
      lon = this.con * (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_5__["default"])(this.con * this.long0 + Math.atan2(p.x, - 1 * p.y));
    }
    else {
      ce = 2 * Math.atan(rh * this.cosX0 / (2 * this.a * this.k0 * this.ms1));
      lon = this.long0;
      if (rh <= _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
        Chi = this.X0;
      }
      else {
        Chi = Math.asin(Math.cos(ce) * this.sinX0 + p.y * Math.sin(ce) * this.cosX0 / rh);
        lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_5__["default"])(this.long0 + Math.atan2(p.x * Math.sin(ce), rh * this.cosX0 * Math.cos(ce) - p.y * this.sinX0 * Math.sin(ce)));
      }
      lat = -1 * (0,_common_phi2z__WEBPACK_IMPORTED_MODULE_4__["default"])(this.e, Math.tan(0.5 * (_constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI + Chi)));
    }
  }
  p.x = lon;
  p.y = lat;

  //trace(p.toString());
  return p;

}

var names = ["stere", "Stereographic_South_Pole", "Polar Stereographic (variant B)"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names,
  ssfn_: ssfn_
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/sterea.js":
/*!******************************************************!*\
  !*** ./node_modules/proj4/lib/projections/sterea.js ***!
  \******************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _gauss__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./gauss */ "./node_modules/proj4/lib/projections/gauss.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");



function init() {
  _gauss__WEBPACK_IMPORTED_MODULE_0__["default"].init.apply(this);
  if (!this.rc) {
    return;
  }
  this.sinc0 = Math.sin(this.phic0);
  this.cosc0 = Math.cos(this.phic0);
  this.R2 = 2 * this.rc;
  if (!this.title) {
    this.title = "Oblique Stereographic Alternative";
  }
}

function forward(p) {
  var sinc, cosc, cosl, k;
  p.x = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__["default"])(p.x - this.long0);
  _gauss__WEBPACK_IMPORTED_MODULE_0__["default"].forward.apply(this, [p]);
  sinc = Math.sin(p.y);
  cosc = Math.cos(p.y);
  cosl = Math.cos(p.x);
  k = this.k0 * this.R2 / (1 + this.sinc0 * sinc + this.cosc0 * cosc * cosl);
  p.x = k * cosc * Math.sin(p.x);
  p.y = k * (this.cosc0 * sinc - this.sinc0 * cosc * cosl);
  p.x = this.a * p.x + this.x0;
  p.y = this.a * p.y + this.y0;
  return p;
}

function inverse(p) {
  var sinc, cosc, lon, lat, rho;
  p.x = (p.x - this.x0) / this.a;
  p.y = (p.y - this.y0) / this.a;

  p.x /= this.k0;
  p.y /= this.k0;
  if ((rho = Math.sqrt(p.x * p.x + p.y * p.y))) {
    var c = 2 * Math.atan2(rho, this.R2);
    sinc = Math.sin(c);
    cosc = Math.cos(c);
    lat = Math.asin(cosc * this.sinc0 + p.y * sinc * this.cosc0 / rho);
    lon = Math.atan2(p.x * sinc, rho * this.cosc0 * cosc - p.y * this.sinc0 * sinc);
  }
  else {
    lat = this.phic0;
    lon = 0;
  }

  p.x = lon;
  p.y = lat;
  _gauss__WEBPACK_IMPORTED_MODULE_0__["default"].inverse.apply(this, [p]);
  p.x = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_1__["default"])(p.x + this.long0);
  return p;
}

var names = ["Stereographic_North_Pole", "Oblique_Stereographic", "Polar_Stereographic", "sterea","Oblique Stereographic Alternative","Double_Stereographic"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/tmerc.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/tmerc.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_pj_enfn__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/pj_enfn */ "./node_modules/proj4/lib/common/pj_enfn.js");
/* harmony import */ var _common_pj_mlfn__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/pj_mlfn */ "./node_modules/proj4/lib/common/pj_mlfn.js");
/* harmony import */ var _common_pj_inv_mlfn__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/pj_inv_mlfn */ "./node_modules/proj4/lib/common/pj_inv_mlfn.js");
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _common_sign__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../common/sign */ "./node_modules/proj4/lib/common/sign.js");
// Heavily based on this tmerc projection implementation
// https://github.com/mbloch/mapshaper-proj/blob/master/src/projections/tmerc.js









function init() {
  this.x0 = this.x0 !== undefined ? this.x0 : 0;
  this.y0 = this.y0 !== undefined ? this.y0 : 0;
  this.long0 = this.long0 !== undefined ? this.long0 : 0;
  this.lat0 = this.lat0 !== undefined ? this.lat0 : 0;

  if (this.es) {
    this.en = (0,_common_pj_enfn__WEBPACK_IMPORTED_MODULE_0__["default"])(this.es);
    this.ml0 = (0,_common_pj_mlfn__WEBPACK_IMPORTED_MODULE_1__["default"])(this.lat0, Math.sin(this.lat0), Math.cos(this.lat0), this.en);
  }
}

/**
    Transverse Mercator Forward  - long/lat to x/y
    long/lat in radians
  */
function forward(p) {
  var lon = p.x;
  var lat = p.y;

  var delta_lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_3__["default"])(lon - this.long0);
  var con;
  var x, y;
  var sin_phi = Math.sin(lat);
  var cos_phi = Math.cos(lat);

  if (!this.es) {
    var b = cos_phi * Math.sin(delta_lon);

    if ((Math.abs(Math.abs(b) - 1)) < _constants_values__WEBPACK_IMPORTED_MODULE_4__.EPSLN) {
      return (93);
    }
    else {
      x = 0.5 * this.a * this.k0 * Math.log((1 + b) / (1 - b)) + this.x0;
      y = cos_phi * Math.cos(delta_lon) / Math.sqrt(1 - Math.pow(b, 2));
      b = Math.abs(y);

      if (b >= 1) {
        if ((b - 1) > _constants_values__WEBPACK_IMPORTED_MODULE_4__.EPSLN) {
          return (93);
        }
        else {
          y = 0;
        }
      }
      else {
        y = Math.acos(y);
      }

      if (lat < 0) {
        y = -y;
      }

      y = this.a * this.k0 * (y - this.lat0) + this.y0;
    }
  }
  else {
    var al = cos_phi * delta_lon;
    var als = Math.pow(al, 2);
    var c = this.ep2 * Math.pow(cos_phi, 2);
    var cs = Math.pow(c, 2);
    var tq = Math.abs(cos_phi) > _constants_values__WEBPACK_IMPORTED_MODULE_4__.EPSLN ? Math.tan(lat) : 0;
    var t = Math.pow(tq, 2);
    var ts = Math.pow(t, 2);
    con = 1 - this.es * Math.pow(sin_phi, 2);
    al = al / Math.sqrt(con);
    var ml = (0,_common_pj_mlfn__WEBPACK_IMPORTED_MODULE_1__["default"])(lat, sin_phi, cos_phi, this.en);

    x = this.a * (this.k0 * al * (1 +
      als / 6 * (1 - t + c +
      als / 20 * (5 - 18 * t + ts + 14 * c - 58 * t * c +
      als / 42 * (61 + 179 * ts - ts * t - 479 * t))))) +
      this.x0;

    y = this.a * (this.k0 * (ml - this.ml0 +
      sin_phi * delta_lon * al / 2 * (1 +
      als / 12 * (5 - t + 9 * c + 4 * cs +
      als / 30 * (61 + ts - 58 * t + 270 * c - 330 * t * c +
      als / 56 * (1385 + 543 * ts - ts * t - 3111 * t)))))) +
      this.y0;
  }

  p.x = x;
  p.y = y;

  return p;
}

/**
    Transverse Mercator Inverse  -  x/y to long/lat
  */
function inverse(p) {
  var con, phi;
  var lat, lon;
  var x = (p.x - this.x0) * (1 / this.a);
  var y = (p.y - this.y0) * (1 / this.a);

  if (!this.es) {
    var f = Math.exp(x / this.k0);
    var g = 0.5 * (f - 1 / f);
    var temp = this.lat0 + y / this.k0;
    var h = Math.cos(temp);
    con = Math.sqrt((1 - Math.pow(h, 2)) / (1 + Math.pow(g, 2)));
    lat = Math.asin(con);

    if (y < 0) {
      lat = -lat;
    }

    if ((g === 0) && (h === 0)) {
      lon = 0;
    }
    else {
      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_3__["default"])(Math.atan2(g, h) + this.long0);
    }
  }
  else { // ellipsoidal form
    con = this.ml0 + y / this.k0;
    phi = (0,_common_pj_inv_mlfn__WEBPACK_IMPORTED_MODULE_2__["default"])(con, this.es, this.en);

    if (Math.abs(phi) < _constants_values__WEBPACK_IMPORTED_MODULE_4__.HALF_PI) {
      var sin_phi = Math.sin(phi);
      var cos_phi = Math.cos(phi);
      var tan_phi = Math.abs(cos_phi) > _constants_values__WEBPACK_IMPORTED_MODULE_4__.EPSLN ? Math.tan(phi) : 0;
      var c = this.ep2 * Math.pow(cos_phi, 2);
      var cs = Math.pow(c, 2);
      var t = Math.pow(tan_phi, 2);
      var ts = Math.pow(t, 2);
      con = 1 - this.es * Math.pow(sin_phi, 2);
      var d = x * Math.sqrt(con) / this.k0;
      var ds = Math.pow(d, 2);
      con = con * tan_phi;

      lat = phi - (con * ds / (1 - this.es)) * 0.5 * (1 -
        ds / 12 * (5 + 3 * t - 9 * c * t + c - 4 * cs -
        ds / 30 * (61 + 90 * t - 252 * c * t + 45 * ts + 46 * c -
        ds / 56 * (1385 + 3633 * t + 4095 * ts + 1574 * ts * t))));

      lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_3__["default"])(this.long0 + (d * (1 -
        ds / 6 * (1 + 2 * t + c -
        ds / 20 * (5 + 28 * t + 24 * ts + 8 * c * t + 6 * c -
        ds / 42 * (61 + 662 * t + 1320 * ts + 720 * ts * t)))) / cos_phi));
    }
    else {
      lat = _constants_values__WEBPACK_IMPORTED_MODULE_4__.HALF_PI * (0,_common_sign__WEBPACK_IMPORTED_MODULE_5__["default"])(y);
      lon = 0;
    }
  }

  p.x = lon;
  p.y = lat;

  return p;
}

var names = ["Fast_Transverse_Mercator", "Fast Transverse Mercator"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/tpers.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/tpers.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _common_hypot__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../common/hypot */ "./node_modules/proj4/lib/common/hypot.js");

var mode = {
  N_POLE: 0,
  S_POLE: 1,
  EQUIT: 2,
  OBLIQ: 3
};




var params = {
  h:     { def: 100000, num: true },           // default is Karman line, no default in PROJ.7
  azi:   { def: 0, num: true, degrees: true }, // default is North
  tilt:  { def: 0, num: true, degrees: true }, // default is Nadir
  long0: { def: 0, num: true },                // default is Greenwich, conversion to rad is automatic
  lat0:  { def: 0, num: true }                 // default is Equator, conversion to rad is automatic
};

function init() {
  Object.keys(params).forEach(function (p) {
    if (typeof this[p] === "undefined") {
      this[p] = params[p].def;
    } else if (params[p].num && isNaN(this[p])) {
      throw new Error("Invalid parameter value, must be numeric " + p + " = " + this[p]);
    } else if (params[p].num) {
      this[p] = parseFloat(this[p]);
    }
    if (params[p].degrees) {
      this[p] = this[p] * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R;
    }
  }.bind(this));

  if (Math.abs((Math.abs(this.lat0) - _constants_values__WEBPACK_IMPORTED_MODULE_0__.HALF_PI)) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
    this.mode = this.lat0 < 0 ? mode.S_POLE : mode.N_POLE;
  } else if (Math.abs(this.lat0) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
    this.mode = mode.EQUIT;
  } else {
    this.mode = mode.OBLIQ;
    this.sinph0 = Math.sin(this.lat0);
    this.cosph0 = Math.cos(this.lat0);
  }

  this.pn1 = this.h / this.a;  // Normalize relative to the Earth's radius

  if (this.pn1 <= 0 || this.pn1 > 1e10) {
    throw new Error("Invalid height");
  }
  
  this.p = 1 + this.pn1;
  this.rp = 1 / this.p;
  this.h1 = 1 / this.pn1;
  this.pfact = (this.p + 1) * this.h1;
  this.es = 0;

  var omega = this.tilt;
  var gamma = this.azi;
  this.cg = Math.cos(gamma);
  this.sg = Math.sin(gamma);
  this.cw = Math.cos(omega);
  this.sw = Math.sin(omega);
}

function forward(p) {
  p.x -= this.long0;
  var sinphi = Math.sin(p.y);
  var cosphi = Math.cos(p.y);
  var coslam = Math.cos(p.x);
  var x, y;
  switch (this.mode) {
    case mode.OBLIQ:
      y = this.sinph0 * sinphi + this.cosph0 * cosphi * coslam;
      break;
    case mode.EQUIT:
      y = cosphi * coslam;
      break;
    case mode.S_POLE:
      y = -sinphi;
      break;
    case mode.N_POLE:
      y = sinphi;
      break;
  }
  y = this.pn1 / (this.p - y);
  x = y * cosphi * Math.sin(p.x);

  switch (this.mode) {
    case mode.OBLIQ:
      y *= this.cosph0 * sinphi - this.sinph0 * cosphi * coslam;
      break;
    case mode.EQUIT:
      y *= sinphi;
      break;
    case mode.N_POLE:
      y *= -(cosphi * coslam);
      break;
    case mode.S_POLE:
      y *= cosphi * coslam;
      break;
  }

  // Tilt 
  var yt, ba;
  yt = y * this.cg + x * this.sg;
  ba = 1 / (yt * this.sw * this.h1 + this.cw);
  x = (x * this.cg - y * this.sg) * this.cw * ba;
  y = yt * ba;

  p.x = x * this.a;
  p.y = y * this.a;
  return p;
}

function inverse(p) {
  p.x /= this.a;
  p.y /= this.a;
  var r = { x: p.x, y: p.y };

  // Un-Tilt
  var bm, bq, yt;
  yt = 1 / (this.pn1 - p.y * this.sw);
  bm = this.pn1 * p.x * yt;
  bq = this.pn1 * p.y * this.cw * yt;
  p.x = bm * this.cg + bq * this.sg;
  p.y = bq * this.cg - bm * this.sg;

  var rh = (0,_common_hypot__WEBPACK_IMPORTED_MODULE_1__["default"])(p.x, p.y);
  if (Math.abs(rh) < _constants_values__WEBPACK_IMPORTED_MODULE_0__.EPSLN) {
    r.x = 0;
    r.y = p.y;
  } else {
    var cosz, sinz;
    sinz = 1 - rh * rh * this.pfact;
    sinz = (this.p - Math.sqrt(sinz)) / (this.pn1 / rh + rh / this.pn1);
    cosz = Math.sqrt(1 - sinz * sinz);
    switch (this.mode) {
      case mode.OBLIQ:
        r.y = Math.asin(cosz * this.sinph0 + p.y * sinz * this.cosph0 / rh);
        p.y = (cosz - this.sinph0 * Math.sin(r.y)) * rh;
        p.x *= sinz * this.cosph0;
        break;
      case mode.EQUIT:
        r.y = Math.asin(p.y * sinz / rh);
        p.y = cosz * rh;
        p.x *= sinz;
        break;
      case mode.N_POLE:
        r.y = Math.asin(cosz);
        p.y = -p.y;
        break;
      case mode.S_POLE:
        r.y = -Math.asin(cosz);
        break;
    }
    r.x = Math.atan2(p.x, p.y);
  }

  p.x = r.x + this.long0;
  p.y = r.y;
  return p;
}

var names = ["Tilted_Perspective", "tpers"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/utm.js":
/*!***************************************************!*\
  !*** ./node_modules/proj4/lib/projections/utm.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "dependsOn": () => (/* binding */ dependsOn),
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_zone__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_zone */ "./node_modules/proj4/lib/common/adjust_zone.js");
/* harmony import */ var _etmerc__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./etmerc */ "./node_modules/proj4/lib/projections/etmerc.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");


var dependsOn = 'etmerc';



function init() {
  var zone = (0,_common_adjust_zone__WEBPACK_IMPORTED_MODULE_0__["default"])(this.zone, this.long0);
  if (zone === undefined) {
    throw new Error('unknown utm zone');
  }
  this.lat0 = 0;
  this.long0 =  ((6 * Math.abs(zone)) - 183) * _constants_values__WEBPACK_IMPORTED_MODULE_2__.D2R;
  this.x0 = 500000;
  this.y0 = this.utmSouth ? 10000000 : 0;
  this.k0 = 0.9996;

  _etmerc__WEBPACK_IMPORTED_MODULE_1__["default"].init.apply(this);
  this.forward = _etmerc__WEBPACK_IMPORTED_MODULE_1__["default"].forward;
  this.inverse = _etmerc__WEBPACK_IMPORTED_MODULE_1__["default"].inverse;
}

var names = ["Universal Transverse Mercator System", "utm"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  names: names,
  dependsOn: dependsOn
});


/***/ }),

/***/ "./node_modules/proj4/lib/projections/vandg.js":
/*!*****************************************************!*\
  !*** ./node_modules/proj4/lib/projections/vandg.js ***!
  \*****************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "init": () => (/* binding */ init),
/* harmony export */   "forward": () => (/* binding */ forward),
/* harmony export */   "inverse": () => (/* binding */ inverse),
/* harmony export */   "names": () => (/* binding */ names),
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../common/adjust_lon */ "./node_modules/proj4/lib/common/adjust_lon.js");
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _common_asinz__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../common/asinz */ "./node_modules/proj4/lib/common/asinz.js");






/* Initialize the Van Der Grinten projection
  ----------------------------------------*/
function init() {
  //this.R = 6370997; //Radius of earth
  this.R = this.a;
}

function forward(p) {

  var lon = p.x;
  var lat = p.y;

  /* Forward equations
    -----------------*/
  var dlon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(lon - this.long0);
  var x, y;

  if (Math.abs(lat) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
    x = this.x0 + this.R * dlon;
    y = this.y0;
  }
  var theta = (0,_common_asinz__WEBPACK_IMPORTED_MODULE_2__["default"])(2 * Math.abs(lat / Math.PI));
  if ((Math.abs(dlon) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) || (Math.abs(Math.abs(lat) - _constants_values__WEBPACK_IMPORTED_MODULE_1__.HALF_PI) <= _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN)) {
    x = this.x0;
    if (lat >= 0) {
      y = this.y0 + Math.PI * this.R * Math.tan(0.5 * theta);
    }
    else {
      y = this.y0 + Math.PI * this.R * -Math.tan(0.5 * theta);
    }
    //  return(OK);
  }
  var al = 0.5 * Math.abs((Math.PI / dlon) - (dlon / Math.PI));
  var asq = al * al;
  var sinth = Math.sin(theta);
  var costh = Math.cos(theta);

  var g = costh / (sinth + costh - 1);
  var gsq = g * g;
  var m = g * (2 / sinth - 1);
  var msq = m * m;
  var con = Math.PI * this.R * (al * (g - msq) + Math.sqrt(asq * (g - msq) * (g - msq) - (msq + asq) * (gsq - msq))) / (msq + asq);
  if (dlon < 0) {
    con = -con;
  }
  x = this.x0 + con;
  //con = Math.abs(con / (Math.PI * this.R));
  var q = asq + g;
  con = Math.PI * this.R * (m * q - al * Math.sqrt((msq + asq) * (asq + 1) - q * q)) / (msq + asq);
  if (lat >= 0) {
    //y = this.y0 + Math.PI * this.R * Math.sqrt(1 - con * con - 2 * al * con);
    y = this.y0 + con;
  }
  else {
    //y = this.y0 - Math.PI * this.R * Math.sqrt(1 - con * con - 2 * al * con);
    y = this.y0 - con;
  }
  p.x = x;
  p.y = y;
  return p;
}

/* Van Der Grinten inverse equations--mapping x,y to lat/long
  ---------------------------------------------------------*/
function inverse(p) {
  var lon, lat;
  var xx, yy, xys, c1, c2, c3;
  var a1;
  var m1;
  var con;
  var th1;
  var d;

  /* inverse equations
    -----------------*/
  p.x -= this.x0;
  p.y -= this.y0;
  con = Math.PI * this.R;
  xx = p.x / con;
  yy = p.y / con;
  xys = xx * xx + yy * yy;
  c1 = -Math.abs(yy) * (1 + xys);
  c2 = c1 - 2 * yy * yy + xx * xx;
  c3 = -2 * c1 + 1 + 2 * yy * yy + xys * xys;
  d = yy * yy / c3 + (2 * c2 * c2 * c2 / c3 / c3 / c3 - 9 * c1 * c2 / c3 / c3) / 27;
  a1 = (c1 - c2 * c2 / 3 / c3) / c3;
  m1 = 2 * Math.sqrt(-a1 / 3);
  con = ((3 * d) / a1) / m1;
  if (Math.abs(con) > 1) {
    if (con >= 0) {
      con = 1;
    }
    else {
      con = -1;
    }
  }
  th1 = Math.acos(con) / 3;
  if (p.y >= 0) {
    lat = (-m1 * Math.cos(th1 + Math.PI / 3) - c2 / 3 / c3) * Math.PI;
  }
  else {
    lat = -(-m1 * Math.cos(th1 + Math.PI / 3) - c2 / 3 / c3) * Math.PI;
  }

  if (Math.abs(xx) < _constants_values__WEBPACK_IMPORTED_MODULE_1__.EPSLN) {
    lon = this.long0;
  }
  else {
    lon = (0,_common_adjust_lon__WEBPACK_IMPORTED_MODULE_0__["default"])(this.long0 + Math.PI * (xys - 1 + Math.sqrt(1 + 2 * (xx * xx - yy * yy) + xys * xys)) / 2 / xx);
  }

  p.x = lon;
  p.y = lat;
  return p;
}

var names = ["Van_der_Grinten_I", "VanDerGrinten", "vandg"];
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
  init: init,
  forward: forward,
  inverse: inverse,
  names: names
});


/***/ }),

/***/ "./node_modules/proj4/lib/transform.js":
/*!*********************************************!*\
  !*** ./node_modules/proj4/lib/transform.js ***!
  \*********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ transform)
/* harmony export */ });
/* harmony import */ var _constants_values__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./constants/values */ "./node_modules/proj4/lib/constants/values.js");
/* harmony import */ var _datum_transform__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./datum_transform */ "./node_modules/proj4/lib/datum_transform.js");
/* harmony import */ var _adjust_axis__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./adjust_axis */ "./node_modules/proj4/lib/adjust_axis.js");
/* harmony import */ var _Proj__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./Proj */ "./node_modules/proj4/lib/Proj.js");
/* harmony import */ var _common_toPoint__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./common/toPoint */ "./node_modules/proj4/lib/common/toPoint.js");
/* harmony import */ var _checkSanity__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./checkSanity */ "./node_modules/proj4/lib/checkSanity.js");







function checkNotWGS(source, dest) {
  return ((source.datum.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_3PARAM || source.datum.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_7PARAM) && dest.datumCode !== 'WGS84') || ((dest.datum.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_3PARAM || dest.datum.datum_type === _constants_values__WEBPACK_IMPORTED_MODULE_0__.PJD_7PARAM) && source.datumCode !== 'WGS84');
}

function transform(source, dest, point, enforceAxis) {
  var wgs84;
  if (Array.isArray(point)) {
    point = (0,_common_toPoint__WEBPACK_IMPORTED_MODULE_4__["default"])(point);
  }
  (0,_checkSanity__WEBPACK_IMPORTED_MODULE_5__["default"])(point);
  // Workaround for datum shifts towgs84, if either source or destination projection is not wgs84
  if (source.datum && dest.datum && checkNotWGS(source, dest)) {
    wgs84 = new _Proj__WEBPACK_IMPORTED_MODULE_3__["default"]('WGS84');
    point = transform(source, wgs84, point, enforceAxis);
    source = wgs84;
  }
  // DGR, 2010/11/12
  if (enforceAxis && source.axis !== 'enu') {
    point = (0,_adjust_axis__WEBPACK_IMPORTED_MODULE_2__["default"])(source, false, point);
  }
  // Transform source points to long/lat, if they aren't already.
  if (source.projName === 'longlat') {
    point = {
      x: point.x * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R,
      y: point.y * _constants_values__WEBPACK_IMPORTED_MODULE_0__.D2R,
      z: point.z || 0
    };
  } else {
    if (source.to_meter) {
      point = {
        x: point.x * source.to_meter,
        y: point.y * source.to_meter,
        z: point.z || 0
      };
    }
    point = source.inverse(point); // Convert Cartesian to longlat
    if (!point) {
      return;
    }
  }
  // Adjust for the prime meridian if necessary
  if (source.from_greenwich) {
    point.x += source.from_greenwich;
  }

  // Convert datums if needed, and if possible.
  point = (0,_datum_transform__WEBPACK_IMPORTED_MODULE_1__["default"])(source.datum, dest.datum, point);
  if (!point) {
    return;
  }

  // Adjust for the prime meridian if necessary
  if (dest.from_greenwich) {
    point = {
      x: point.x - dest.from_greenwich,
      y: point.y,
      z: point.z || 0
    };
  }

  if (dest.projName === 'longlat') {
    // convert radians to decimal degrees
    point = {
      x: point.x * _constants_values__WEBPACK_IMPORTED_MODULE_0__.R2D,
      y: point.y * _constants_values__WEBPACK_IMPORTED_MODULE_0__.R2D,
      z: point.z || 0
    };
  } else { // else project
    point = dest.forward(point);
    if (dest.to_meter) {
      point = {
        x: point.x / dest.to_meter,
        y: point.y / dest.to_meter,
        z: point.z || 0
      };
    }
  }

  // DGR, 2010/11/12
  if (enforceAxis && dest.axis !== 'enu') {
    return (0,_adjust_axis__WEBPACK_IMPORTED_MODULE_2__["default"])(dest, true, point);
  }

  return point;
}


/***/ }),

/***/ "./node_modules/proj4/projs.js":
/*!*************************************!*\
  !*** ./node_modules/proj4/projs.js ***!
  \*************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _lib_projections_tmerc__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./lib/projections/tmerc */ "./node_modules/proj4/lib/projections/tmerc.js");
/* harmony import */ var _lib_projections_etmerc__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./lib/projections/etmerc */ "./node_modules/proj4/lib/projections/etmerc.js");
/* harmony import */ var _lib_projections_utm__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./lib/projections/utm */ "./node_modules/proj4/lib/projections/utm.js");
/* harmony import */ var _lib_projections_sterea__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./lib/projections/sterea */ "./node_modules/proj4/lib/projections/sterea.js");
/* harmony import */ var _lib_projections_stere__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./lib/projections/stere */ "./node_modules/proj4/lib/projections/stere.js");
/* harmony import */ var _lib_projections_somerc__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./lib/projections/somerc */ "./node_modules/proj4/lib/projections/somerc.js");
/* harmony import */ var _lib_projections_omerc__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./lib/projections/omerc */ "./node_modules/proj4/lib/projections/omerc.js");
/* harmony import */ var _lib_projections_lcc__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./lib/projections/lcc */ "./node_modules/proj4/lib/projections/lcc.js");
/* harmony import */ var _lib_projections_krovak__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./lib/projections/krovak */ "./node_modules/proj4/lib/projections/krovak.js");
/* harmony import */ var _lib_projections_cass__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./lib/projections/cass */ "./node_modules/proj4/lib/projections/cass.js");
/* harmony import */ var _lib_projections_laea__WEBPACK_IMPORTED_MODULE_10__ = __webpack_require__(/*! ./lib/projections/laea */ "./node_modules/proj4/lib/projections/laea.js");
/* harmony import */ var _lib_projections_aea__WEBPACK_IMPORTED_MODULE_11__ = __webpack_require__(/*! ./lib/projections/aea */ "./node_modules/proj4/lib/projections/aea.js");
/* harmony import */ var _lib_projections_gnom__WEBPACK_IMPORTED_MODULE_12__ = __webpack_require__(/*! ./lib/projections/gnom */ "./node_modules/proj4/lib/projections/gnom.js");
/* harmony import */ var _lib_projections_cea__WEBPACK_IMPORTED_MODULE_13__ = __webpack_require__(/*! ./lib/projections/cea */ "./node_modules/proj4/lib/projections/cea.js");
/* harmony import */ var _lib_projections_eqc__WEBPACK_IMPORTED_MODULE_14__ = __webpack_require__(/*! ./lib/projections/eqc */ "./node_modules/proj4/lib/projections/eqc.js");
/* harmony import */ var _lib_projections_poly__WEBPACK_IMPORTED_MODULE_15__ = __webpack_require__(/*! ./lib/projections/poly */ "./node_modules/proj4/lib/projections/poly.js");
/* harmony import */ var _lib_projections_nzmg__WEBPACK_IMPORTED_MODULE_16__ = __webpack_require__(/*! ./lib/projections/nzmg */ "./node_modules/proj4/lib/projections/nzmg.js");
/* harmony import */ var _lib_projections_mill__WEBPACK_IMPORTED_MODULE_17__ = __webpack_require__(/*! ./lib/projections/mill */ "./node_modules/proj4/lib/projections/mill.js");
/* harmony import */ var _lib_projections_sinu__WEBPACK_IMPORTED_MODULE_18__ = __webpack_require__(/*! ./lib/projections/sinu */ "./node_modules/proj4/lib/projections/sinu.js");
/* harmony import */ var _lib_projections_moll__WEBPACK_IMPORTED_MODULE_19__ = __webpack_require__(/*! ./lib/projections/moll */ "./node_modules/proj4/lib/projections/moll.js");
/* harmony import */ var _lib_projections_eqdc__WEBPACK_IMPORTED_MODULE_20__ = __webpack_require__(/*! ./lib/projections/eqdc */ "./node_modules/proj4/lib/projections/eqdc.js");
/* harmony import */ var _lib_projections_vandg__WEBPACK_IMPORTED_MODULE_21__ = __webpack_require__(/*! ./lib/projections/vandg */ "./node_modules/proj4/lib/projections/vandg.js");
/* harmony import */ var _lib_projections_aeqd__WEBPACK_IMPORTED_MODULE_22__ = __webpack_require__(/*! ./lib/projections/aeqd */ "./node_modules/proj4/lib/projections/aeqd.js");
/* harmony import */ var _lib_projections_ortho__WEBPACK_IMPORTED_MODULE_23__ = __webpack_require__(/*! ./lib/projections/ortho */ "./node_modules/proj4/lib/projections/ortho.js");
/* harmony import */ var _lib_projections_qsc__WEBPACK_IMPORTED_MODULE_24__ = __webpack_require__(/*! ./lib/projections/qsc */ "./node_modules/proj4/lib/projections/qsc.js");
/* harmony import */ var _lib_projections_robin__WEBPACK_IMPORTED_MODULE_25__ = __webpack_require__(/*! ./lib/projections/robin */ "./node_modules/proj4/lib/projections/robin.js");
/* harmony import */ var _lib_projections_geocent__WEBPACK_IMPORTED_MODULE_26__ = __webpack_require__(/*! ./lib/projections/geocent */ "./node_modules/proj4/lib/projections/geocent.js");
/* harmony import */ var _lib_projections_tpers__WEBPACK_IMPORTED_MODULE_27__ = __webpack_require__(/*! ./lib/projections/tpers */ "./node_modules/proj4/lib/projections/tpers.js");




























/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(proj4){
  proj4.Proj.projections.add(_lib_projections_tmerc__WEBPACK_IMPORTED_MODULE_0__["default"]);
  proj4.Proj.projections.add(_lib_projections_etmerc__WEBPACK_IMPORTED_MODULE_1__["default"]);
  proj4.Proj.projections.add(_lib_projections_utm__WEBPACK_IMPORTED_MODULE_2__["default"]);
  proj4.Proj.projections.add(_lib_projections_sterea__WEBPACK_IMPORTED_MODULE_3__["default"]);
  proj4.Proj.projections.add(_lib_projections_stere__WEBPACK_IMPORTED_MODULE_4__["default"]);
  proj4.Proj.projections.add(_lib_projections_somerc__WEBPACK_IMPORTED_MODULE_5__["default"]);
  proj4.Proj.projections.add(_lib_projections_omerc__WEBPACK_IMPORTED_MODULE_6__["default"]);
  proj4.Proj.projections.add(_lib_projections_lcc__WEBPACK_IMPORTED_MODULE_7__["default"]);
  proj4.Proj.projections.add(_lib_projections_krovak__WEBPACK_IMPORTED_MODULE_8__["default"]);
  proj4.Proj.projections.add(_lib_projections_cass__WEBPACK_IMPORTED_MODULE_9__["default"]);
  proj4.Proj.projections.add(_lib_projections_laea__WEBPACK_IMPORTED_MODULE_10__["default"]);
  proj4.Proj.projections.add(_lib_projections_aea__WEBPACK_IMPORTED_MODULE_11__["default"]);
  proj4.Proj.projections.add(_lib_projections_gnom__WEBPACK_IMPORTED_MODULE_12__["default"]);
  proj4.Proj.projections.add(_lib_projections_cea__WEBPACK_IMPORTED_MODULE_13__["default"]);
  proj4.Proj.projections.add(_lib_projections_eqc__WEBPACK_IMPORTED_MODULE_14__["default"]);
  proj4.Proj.projections.add(_lib_projections_poly__WEBPACK_IMPORTED_MODULE_15__["default"]);
  proj4.Proj.projections.add(_lib_projections_nzmg__WEBPACK_IMPORTED_MODULE_16__["default"]);
  proj4.Proj.projections.add(_lib_projections_mill__WEBPACK_IMPORTED_MODULE_17__["default"]);
  proj4.Proj.projections.add(_lib_projections_sinu__WEBPACK_IMPORTED_MODULE_18__["default"]);
  proj4.Proj.projections.add(_lib_projections_moll__WEBPACK_IMPORTED_MODULE_19__["default"]);
  proj4.Proj.projections.add(_lib_projections_eqdc__WEBPACK_IMPORTED_MODULE_20__["default"]);
  proj4.Proj.projections.add(_lib_projections_vandg__WEBPACK_IMPORTED_MODULE_21__["default"]);
  proj4.Proj.projections.add(_lib_projections_aeqd__WEBPACK_IMPORTED_MODULE_22__["default"]);
  proj4.Proj.projections.add(_lib_projections_ortho__WEBPACK_IMPORTED_MODULE_23__["default"]);
  proj4.Proj.projections.add(_lib_projections_qsc__WEBPACK_IMPORTED_MODULE_24__["default"]);
  proj4.Proj.projections.add(_lib_projections_robin__WEBPACK_IMPORTED_MODULE_25__["default"]);
  proj4.Proj.projections.add(_lib_projections_geocent__WEBPACK_IMPORTED_MODULE_26__["default"]);
  proj4.Proj.projections.add(_lib_projections_tpers__WEBPACK_IMPORTED_MODULE_27__["default"]);
}

/***/ }),

/***/ "./node_modules/safe-buffer/index.js":
/*!*******************************************!*\
  !*** ./node_modules/safe-buffer/index.js ***!
  \*******************************************/
/***/ ((module, exports, __webpack_require__) => {

/* eslint-disable node/no-deprecated-api */
var buffer = __webpack_require__(/*! buffer */ "./node_modules/buffer/index.js")
var Buffer = buffer.Buffer

// alternative to using Object.keys for old browsers
function copyProps (src, dst) {
  for (var key in src) {
    dst[key] = src[key]
  }
}
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
  module.exports = buffer
} else {
  // Copy properties from require('buffer')
  copyProps(buffer, exports)
  exports.Buffer = SafeBuffer
}

function SafeBuffer (arg, encodingOrOffset, length) {
  return Buffer(arg, encodingOrOffset, length)
}

// Copy static methods from Buffer
copyProps(Buffer, SafeBuffer)

SafeBuffer.from = function (arg, encodingOrOffset, length) {
  if (typeof arg === 'number') {
    throw new TypeError('Argument must not be a number')
  }
  return Buffer(arg, encodingOrOffset, length)
}

SafeBuffer.alloc = function (size, fill, encoding) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  var buf = Buffer(size)
  if (fill !== undefined) {
    if (typeof encoding === 'string') {
      buf.fill(fill, encoding)
    } else {
      buf.fill(fill)
    }
  } else {
    buf.fill(0)
  }
  return buf
}

SafeBuffer.allocUnsafe = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return Buffer(size)
}

SafeBuffer.allocUnsafeSlow = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return buffer.SlowBuffer(size)
}


/***/ }),

/***/ "./node_modules/shpjs/lib/binaryajax-browser.js":
/*!******************************************************!*\
  !*** ./node_modules/shpjs/lib/binaryajax-browser.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

const Promise = __webpack_require__(/*! lie */ "./node_modules/lie/lib/browser.js");
const combine = __webpack_require__(/*! ./combine */ "./node_modules/shpjs/lib/combine.js");
const Buffer = (__webpack_require__(/*! buffer */ "./node_modules/buffer/index.js").Buffer);
module.exports = binaryAjax;
function binaryAjax (_url, type) {
  return new Promise(function (resolve, reject) {
    const url = combine(_url, type);
    const ajax = new XMLHttpRequest();
    ajax.open('GET', url, true);
    if (type !== 'prj' && type !== 'cpg') {
      ajax.responseType = 'arraybuffer';
    }
    ajax.addEventListener('load', function () {
      if (ajax.status > 399) {
        if (type === 'prj' || type === 'cpg') {
          return resolve(false);
        } else {
          return reject(new Error(ajax.status));
        }
      }
      if (type !== 'prj' && type !== 'cpg') {
        return resolve(Buffer.from(ajax.response));
      } else {
        return resolve(ajax.response);
      }
    }, false);
    ajax.send();
  });
}


/***/ }),

/***/ "./node_modules/shpjs/lib/binaryajax-fetch.js":
/*!****************************************************!*\
  !*** ./node_modules/shpjs/lib/binaryajax-fetch.js ***!
  \****************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

const fallback = __webpack_require__(/*! ./binaryajax-browser */ "./node_modules/shpjs/lib/binaryajax-browser.js");
const combine = __webpack_require__(/*! ./combine */ "./node_modules/shpjs/lib/combine.js");
const Buffer = (__webpack_require__(/*! buffer */ "./node_modules/buffer/index.js").Buffer);
module.exports = async function binaryAjax (_url, type) {
  if (!__webpack_require__.g.fetch) {
    return fallback(_url, type);
  }
  const url = combine(_url, type);
  const isOptionalTxt = type === 'prj' || type === 'cpg';
  try {
    const resp = await fetch(url);
    if (resp.status > 399) {
      throw new Error(resp.statusText);
    }
    if (isOptionalTxt) {
      return resp.text();
    }
    const parsed = await resp.arrayBuffer();
    return Buffer.from(parsed);
  } catch (e) {
    if (isOptionalTxt) {
      return false;
    }
    throw e;
  }
};


/***/ }),

/***/ "./node_modules/shpjs/lib/combine.js":
/*!*******************************************!*\
  !*** ./node_modules/shpjs/lib/combine.js ***!
  \*******************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

const URL = __webpack_require__.g.URL;

module.exports = (base, type) => {
  if (!type) {
    return base;
  }
  const url = new URL(base);
  url.pathname = `${url.pathname}.${type}`;
  return url.href;
};


/***/ }),

/***/ "./node_modules/shpjs/lib/index.js":
/*!*****************************************!*\
  !*** ./node_modules/shpjs/lib/index.js ***!
  \*****************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";

let proj4 = __webpack_require__(/*! proj4 */ "./node_modules/proj4/lib/index.js");
if (proj4.default) {
  proj4 = proj4.default;
}
const unzip = __webpack_require__(/*! ./unzip */ "./node_modules/shpjs/lib/unzip.js");
const binaryAjax = __webpack_require__(/*! ./binaryajax */ "./node_modules/shpjs/lib/binaryajax-fetch.js");
const parseShp = __webpack_require__(/*! ./parseShp */ "./node_modules/shpjs/lib/parseShp.js");
const parseDbf = __webpack_require__(/*! parsedbf */ "./node_modules/parsedbf/index.js");
const Promise = __webpack_require__(/*! lie */ "./node_modules/lie/lib/browser.js");
const Cache = __webpack_require__(/*! lru-cache */ "./node_modules/lru-cache/lib/lru-cache.js");
const Buffer = (__webpack_require__(/*! buffer */ "./node_modules/buffer/index.js").Buffer);
const URL = __webpack_require__.g.URL;

const cache = new Cache({
  max: 20
});

function toBuffer (b) {
  if (!b) {
    throw new Error('forgot to pass buffer');
  }
  if (Buffer.isBuffer(b)) {
    return b;
  }
  if (b instanceof __webpack_require__.g.ArrayBuffer) {
    return Buffer.from(b);
  }
  if (b.buffer instanceof __webpack_require__.g.ArrayBuffer) {
    if (b.BYTES_PER_ELEMENT === 1) {
      return Buffer.from(b);
    }
    return Buffer.from(b.buffer);
  }
}

function shp (base, whiteList) {
  if (typeof base === 'string' && cache.has(base)) {
    return Promise.resolve(cache.get(base));
  }
  return shp.getShapefile(base, whiteList).then(function (resp) {
    if (typeof base === 'string') {
      cache.set(base, resp);
    }
    return resp;
  });
}
shp.combine = function (arr) {
  const out = {};
  out.type = 'FeatureCollection';
  out.features = [];
  let i = 0;
  const len = arr[0].length;
  while (i < len) {
    out.features.push({
      type: 'Feature',
      geometry: arr[0][i],
      properties: arr[1][i]
    });
    i++;
  }
  return out;
};
shp.parseZip = async function (buffer, whiteList) {
  let key;
  buffer = toBuffer(buffer);
  const zip = await unzip(buffer);
  const names = [];
  whiteList = whiteList || [];
  for (key in zip) {
    if (key.indexOf('__MACOSX') !== -1) {
      continue;
    }
    if (key.slice(-3).toLowerCase() === 'shp') {
      names.push(key.slice(0, -4));
      zip[key.slice(0, -3) + key.slice(-3).toLowerCase()] = zip[key];
    } else if (key.slice(-3).toLowerCase() === 'prj') {
      zip[key.slice(0, -3) + key.slice(-3).toLowerCase()] = proj4(zip[key]);
    } else if (key.slice(-4).toLowerCase() === 'json' || whiteList.indexOf(key.split('.').pop()) > -1) {
      names.push(key.slice(0, -3) + key.slice(-3).toLowerCase());
    } else if (key.slice(-3).toLowerCase() === 'dbf' || key.slice(-3).toLowerCase() === 'cpg') {
      zip[key.slice(0, -3) + key.slice(-3).toLowerCase()] = zip[key];
    }
  }
  if (!names.length) {
    throw new Error('no layers founds');
  }
  const geojson = names.map(function (name) {
    let parsed, dbf;
    const lastDotIdx = name.lastIndexOf('.');
    if (lastDotIdx > -1 && name.slice(lastDotIdx).indexOf('json') > -1) {
      parsed = JSON.parse(zip[name]);
      parsed.fileName = name.slice(0, lastDotIdx);
    } else if (whiteList.indexOf(name.slice(lastDotIdx + 1)) > -1) {
      parsed = zip[name];
      parsed.fileName = name;
    } else {
      if (zip[name + '.dbf']) {
        dbf = parseDbf(zip[name + '.dbf'], zip[name + '.cpg']);
      }
      parsed = shp.combine([parseShp(zip[name + '.shp'], zip[name + '.prj']), dbf]);
      parsed.fileName = name;
    }
    return parsed;
  });
  if (geojson.length === 1) {
    return geojson[0];
  } else {
    return geojson;
  }
};

async function getZip (base, whiteList) {
  const a = await binaryAjax(base);
  return shp.parseZip(a, whiteList);
}
const handleShp = async (base) => {
  const args = await Promise.all([
    binaryAjax(base, 'shp'),
    binaryAjax(base, 'prj')
  ]);
  let prj = false;
  try {
    if (args[1]) {
      prj = proj4(args[1]);
    }
  } catch (e) {
    prj = false;
  }
  return parseShp(args[0], prj);
};
const handleDbf = async (base) => {
  const [dbf, cpg] = await Promise.all([
    binaryAjax(base, 'dbf'),
    binaryAjax(base, 'cpg')
  ]);
  return parseDbf(dbf, cpg);
};
const checkSuffix = (base, suffix) => {
  const url = new URL(base);
  return url.pathname.slice(-4).toLowerCase() === suffix;
};
shp.getShapefile = async function (base, whiteList) {
  if (typeof base !== 'string') {
    return shp.parseZip(base);
  }
  if (checkSuffix(base, '.zip')) {
    return getZip(base, whiteList);
  }
  const results = await Promise.all([
    handleShp(base),
    handleDbf(base)
  ]);
  return shp.combine(results);
};
shp.parseShp = function (shp, prj) {
  shp = toBuffer(shp);
  if (Buffer.isBuffer(prj)) {
    prj = prj.toString();
  }
  if (typeof prj === 'string') {
    try {
      prj = proj4(prj);
    } catch (e) {
      prj = false;
    }
  }
  return parseShp(shp, prj);
};
shp.parseDbf = function (dbf, cpg) {
  dbf = toBuffer(dbf);
  return parseDbf(dbf, cpg);
};
module.exports = shp;


/***/ }),

/***/ "./node_modules/shpjs/lib/parseShp.js":
/*!********************************************!*\
  !*** ./node_modules/shpjs/lib/parseShp.js ***!
  \********************************************/
/***/ ((module) => {

"use strict";


function isClockWise (array) {
  let sum = 0;
  let i = 1;
  const len = array.length;
  let prev, cur;
  while (i < len) {
    prev = cur || array[0];
    cur = array[i];
    sum += ((cur[0] - prev[0]) * (cur[1] + prev[1]));
    i++;
  }
  return sum > 0;
}

function polyReduce (a, b) {
  if (isClockWise(b) || !a.length) {
    a.push([b]);
  } else {
    a[a.length - 1].push(b);
  }
  return a;
}
ParseShp.prototype.parsePoint = function (data) {
  return {
    type: 'Point',
    coordinates: this.parseCoord(data, 0)
  };
};
ParseShp.prototype.parseZPoint = function (data) {
  const pointXY = this.parsePoint(data);
  pointXY.coordinates.push(data.readDoubleLE(16));
  return pointXY;
};
ParseShp.prototype.parsePointArray = function (data, offset, num) {
  const out = [];
  let done = 0;
  while (done < num) {
    out.push(this.parseCoord(data, offset));
    offset += 16;
    done++;
  }
  return out;
};
ParseShp.prototype.parseZPointArray = function (data, zOffset, num, coordinates) {
  let i = 0;
  while (i < num) {
    coordinates[i].push(data.readDoubleLE(zOffset));
    i++;
    zOffset += 8;
  }
  return coordinates;
};
ParseShp.prototype.parseArrayGroup = function (data, offset, partOffset, num, tot) {
  const out = [];
  let done = 0;
  let curNum; let nextNum = 0;
  let pointNumber;
  while (done < num) {
    done++;
    partOffset += 4;
    curNum = nextNum;
    if (done === num) {
      nextNum = tot;
    } else {
      nextNum = data.readInt32LE(partOffset);
    }
    pointNumber = nextNum - curNum;
    if (!pointNumber) {
      continue;
    }
    out.push(this.parsePointArray(data, offset, pointNumber));
    offset += (pointNumber << 4);
  }
  return out;
};
ParseShp.prototype.parseZArrayGroup = function (data, zOffset, num, coordinates) {
  let i = 0;
  while (i < num) {
    coordinates[i] = this.parseZPointArray(data, zOffset, coordinates[i].length, coordinates[i]);
    zOffset += (coordinates[i].length << 3);
    i++;
  }
  return coordinates;
};
ParseShp.prototype.parseMultiPoint = function (data) {
  const out = {};
  const mins = this.parseCoord(data, 0);
  const maxs = this.parseCoord(data, 16);
  out.bbox = [
    mins[0],
    mins[1],
    maxs[0],
    maxs[1]
  ];
  const num = data.readInt32LE(32, true);
  const offset = 36;
  if (num === 1) {
    out.type = 'Point';
    out.coordinates = this.parseCoord(data, offset);
  } else {
    out.type = 'MultiPoint';
    out.coordinates = this.parsePointArray(data, offset, num);
  }
  return out;
};
ParseShp.prototype.parseZMultiPoint = function (data) {
  const geoJson = this.parseMultiPoint(data);
  let num;
  if (geoJson.type === 'Point') {
    geoJson.coordinates.push(data.readDoubleLE(72));
    return geoJson;
  } else {
    num = geoJson.coordinates.length;
  }
  const zOffset = 52 + (num << 4);
  geoJson.coordinates = this.parseZPointArray(data, zOffset, num, geoJson.coordinates);
  return geoJson;
};
ParseShp.prototype.parsePolyline = function (data) {
  const out = {};
  const mins = this.parseCoord(data, 0);
  const maxs = this.parseCoord(data, 16);
  out.bbox = [
    mins[0],
    mins[1],
    maxs[0],
    maxs[1]
  ];
  const numParts = data.readInt32LE(32);
  const num = data.readInt32LE(36);
  let offset, partOffset;
  if (numParts === 1) {
    out.type = 'LineString';
    offset = 44;
    out.coordinates = this.parsePointArray(data, offset, num);
  } else {
    out.type = 'MultiLineString';
    offset = 40 + (numParts << 2);
    partOffset = 40;
    out.coordinates = this.parseArrayGroup(data, offset, partOffset, numParts, num);
  }
  return out;
};
ParseShp.prototype.parseZPolyline = function (data) {
  const geoJson = this.parsePolyline(data);
  const num = geoJson.coordinates.length;
  let zOffset;
  if (geoJson.type === 'LineString') {
    zOffset = 60 + (num << 4);
    geoJson.coordinates = this.parseZPointArray(data, zOffset, num, geoJson.coordinates);
    return geoJson;
  } else {
    const totalPoints = geoJson.coordinates.reduce(function (a, v) {
      return a + v.length;
    }, 0);
    zOffset = 56 + (totalPoints << 4) + (num << 2);
    geoJson.coordinates = this.parseZArrayGroup(data, zOffset, num, geoJson.coordinates);
    return geoJson;
  }
};
ParseShp.prototype.polyFuncs = function (out) {
  if (out.type === 'LineString') {
    out.type = 'Polygon';
    out.coordinates = [out.coordinates];
    return out;
  } else {
    out.coordinates = out.coordinates.reduce(polyReduce, []);
    if (out.coordinates.length === 1) {
      out.type = 'Polygon';
      out.coordinates = out.coordinates[0];
      return out;
    } else {
      out.type = 'MultiPolygon';
      return out;
    }
  }
};
ParseShp.prototype.parsePolygon = function (data) {
  return this.polyFuncs(this.parsePolyline(data));
};
ParseShp.prototype.parseZPolygon = function (data) {
  return this.polyFuncs(this.parseZPolyline(data));
};
const shpFuncObj = {
  1: 'parsePoint',
  3: 'parsePolyline',
  5: 'parsePolygon',
  8: 'parseMultiPoint',
  11: 'parseZPoint',
  13: 'parseZPolyline',
  15: 'parseZPolygon',
  18: 'parseZMultiPoint'
};

function makeParseCoord (trans) {
  if (trans) {
    return function (data, offset) {
      return trans.inverse([data.readDoubleLE(offset), data.readDoubleLE(offset + 8)]);
    };
  } else {
    return function (data, offset) {
      return [data.readDoubleLE(offset), data.readDoubleLE(offset + 8)];
    };
  }
}

function ParseShp (buffer, trans) {
  if (!(this instanceof ParseShp)) {
    return new ParseShp(buffer, trans);
  }
  this.buffer = buffer;
  this.headers = this.parseHeader();
  if (this.headers.length < this.buffer.byteLength) {
    this.buffer = this.buffer.slice(0, this.headers.length);
  }
  this.shpFuncs(trans);
  this.rows = this.getRows();
}
ParseShp.prototype.shpFuncs = function (tran) {
  let num = this.headers.shpCode;
  if (num > 20) {
    num -= 20;
  }
  if (!(num in shpFuncObj)) {
    throw new Error('I don\'t know that shp type');
  }
  this.parseFunc = this[shpFuncObj[num]];
  this.parseCoord = makeParseCoord(tran);
};
ParseShp.prototype.getShpCode = function () {
  return this.parseHeader().shpCode;
};
ParseShp.prototype.parseHeader = function () {
  const view = this.buffer.slice(0, 100);
  return {
    length: view.readInt32BE(6 << 2) << 1,
    version: view.readInt32LE(7 << 2),
    shpCode: view.readInt32LE(8 << 2),
    bbox: [
      view.readDoubleLE(9 << 2),
      view.readDoubleLE(11 << 2),
      view.readDoubleLE(13 << 2),
      view.readDoubleLE(13 << 2)
    ]
  };
};
ParseShp.prototype.getRows = function () {
  let offset = 100;
  const len = this.buffer.byteLength;
  const out = [];
  let current;
  while (offset < len) {
    current = this.getRow(offset);
    if (!current) {
      break;
    }
    offset += 8;
    offset += current.len;
    if (current.type) {
      out.push(this.parseFunc(current.data));
    } else {
      out.push(null);
    }
  }
  return out;
};
ParseShp.prototype.getRow = function (offset) {
  const view = this.buffer.slice(offset, offset + 12);
  const len = view.readInt32BE(4) << 1;
  const id = view.readInt32BE(0);
  if (len === 0) {
    return {
      id: id,
      len: len,
      type: 0
    };
  }
  return {
    id: id,
    len: len,
    data: this.buffer.slice(offset + 12, offset + len + 8),
    type: view.readInt32LE(8)
  };
};
module.exports = function (buffer, trans) {
  return new ParseShp(buffer, trans).rows;
};


/***/ }),

/***/ "./node_modules/shpjs/lib/unzip.js":
/*!*****************************************!*\
  !*** ./node_modules/shpjs/lib/unzip.js ***!
  \*****************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

"use strict";


const JSZip = __webpack_require__(/*! jszip */ "./node_modules/jszip/dist/jszip.min.js");
module.exports = async (buffer) => {
  const zip = new JSZip();
  await zip.loadAsync(buffer);
  const files = zip.file(/.+/);
  const out = {};
  await Promise.all(files.map(async (a) => {
    let result;
    if (a.name.slice(-3).toLowerCase() === 'shp' || a.name.slice(-3).toLowerCase() === 'dbf') {
      result = await a.async('nodebuffer');
    } else {
      result = await a.async('text');
    }
    out[a.name] = result;
  }));
  return out;
};


/***/ }),

/***/ "./node_modules/string_decoder/lib/string_decoder.js":
/*!***********************************************************!*\
  !*** ./node_modules/string_decoder/lib/string_decoder.js ***!
  \***********************************************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {

"use strict";
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.



/*<replacement>*/

var Buffer = (__webpack_require__(/*! safe-buffer */ "./node_modules/safe-buffer/index.js").Buffer);
/*</replacement>*/

var isEncoding = Buffer.isEncoding || function (encoding) {
  encoding = '' + encoding;
  switch (encoding && encoding.toLowerCase()) {
    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
      return true;
    default:
      return false;
  }
};

function _normalizeEncoding(enc) {
  if (!enc) return 'utf8';
  var retried;
  while (true) {
    switch (enc) {
      case 'utf8':
      case 'utf-8':
        return 'utf8';
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return 'utf16le';
      case 'latin1':
      case 'binary':
        return 'latin1';
      case 'base64':
      case 'ascii':
      case 'hex':
        return enc;
      default:
        if (retried) return; // undefined
        enc = ('' + enc).toLowerCase();
        retried = true;
    }
  }
};

// Do not cache `Buffer.isEncoding` when checking encoding names as some
// modules monkey-patch it to support additional encodings
function normalizeEncoding(enc) {
  var nenc = _normalizeEncoding(enc);
  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
  return nenc || enc;
}

// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters.
exports.StringDecoder = StringDecoder;
function StringDecoder(encoding) {
  this.encoding = normalizeEncoding(encoding);
  var nb;
  switch (this.encoding) {
    case 'utf16le':
      this.text = utf16Text;
      this.end = utf16End;
      nb = 4;
      break;
    case 'utf8':
      this.fillLast = utf8FillLast;
      nb = 4;
      break;
    case 'base64':
      this.text = base64Text;
      this.end = base64End;
      nb = 3;
      break;
    default:
      this.write = simpleWrite;
      this.end = simpleEnd;
      return;
  }
  this.lastNeed = 0;
  this.lastTotal = 0;
  this.lastChar = Buffer.allocUnsafe(nb);
}

StringDecoder.prototype.write = function (buf) {
  if (buf.length === 0) return '';
  var r;
  var i;
  if (this.lastNeed) {
    r = this.fillLast(buf);
    if (r === undefined) return '';
    i = this.lastNeed;
    this.lastNeed = 0;
  } else {
    i = 0;
  }
  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
  return r || '';
};

StringDecoder.prototype.end = utf8End;

// Returns only complete characters in a Buffer
StringDecoder.prototype.text = utf8Text;

// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
StringDecoder.prototype.fillLast = function (buf) {
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
  this.lastNeed -= buf.length;
};

// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
// continuation byte. If an invalid byte is detected, -2 is returned.
function utf8CheckByte(byte) {
  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
  return byte >> 6 === 0x02 ? -1 : -2;
}

// Checks at most 3 bytes at the end of a Buffer in order to detect an
// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
// needed to complete the UTF-8 character (if applicable) are returned.
function utf8CheckIncomplete(self, buf, i) {
  var j = buf.length - 1;
  if (j < i) return 0;
  var nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 1;
    return nb;
  }
  if (--j < i || nb === -2) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 2;
    return nb;
  }
  if (--j < i || nb === -2) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) {
      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
    }
    return nb;
  }
  return 0;
}

// Validates as many continuation bytes for a multi-byte UTF-8 character as
// needed or are available. If we see a non-continuation byte where we expect
// one, we "replace" the validated continuation bytes we've seen so far with
// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
// behavior. The continuation byte check is included three times in the case
// where all of the continuation bytes for a character exist in the same buffer.
// It is also done this way as a slight performance increase instead of using a
// loop.
function utf8CheckExtraBytes(self, buf, p) {
  if ((buf[0] & 0xC0) !== 0x80) {
    self.lastNeed = 0;
    return '\ufffd';
  }
  if (self.lastNeed > 1 && buf.length > 1) {
    if ((buf[1] & 0xC0) !== 0x80) {
      self.lastNeed = 1;
      return '\ufffd';
    }
    if (self.lastNeed > 2 && buf.length > 2) {
      if ((buf[2] & 0xC0) !== 0x80) {
        self.lastNeed = 2;
        return '\ufffd';
      }
    }
  }
}

// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
function utf8FillLast(buf) {
  var p = this.lastTotal - this.lastNeed;
  var r = utf8CheckExtraBytes(this, buf, p);
  if (r !== undefined) return r;
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, p, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, p, 0, buf.length);
  this.lastNeed -= buf.length;
}

// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
// partial character, the character's bytes are buffered until the required
// number of bytes are available.
function utf8Text(buf, i) {
  var total = utf8CheckIncomplete(this, buf, i);
  if (!this.lastNeed) return buf.toString('utf8', i);
  this.lastTotal = total;
  var end = buf.length - (total - this.lastNeed);
  buf.copy(this.lastChar, 0, end);
  return buf.toString('utf8', i, end);
}

// For UTF-8, a replacement character is added when ending on a partial
// character.
function utf8End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + '\ufffd';
  return r;
}

// UTF-16LE typically needs two bytes per character, but even if we have an even
// number of bytes available, we need to check if we end on a leading/high
// surrogate. In that case, we need to wait for the next two bytes in order to
// decode the last character properly.
function utf16Text(buf, i) {
  if ((buf.length - i) % 2 === 0) {
    var r = buf.toString('utf16le', i);
    if (r) {
      var c = r.charCodeAt(r.length - 1);
      if (c >= 0xD800 && c <= 0xDBFF) {
        this.lastNeed = 2;
        this.lastTotal = 4;
        this.lastChar[0] = buf[buf.length - 2];
        this.lastChar[1] = buf[buf.length - 1];
        return r.slice(0, -1);
      }
    }
    return r;
  }
  this.lastNeed = 1;
  this.lastTotal = 2;
  this.lastChar[0] = buf[buf.length - 1];
  return buf.toString('utf16le', i, buf.length - 1);
}

// For UTF-16LE we do not explicitly append special replacement characters if we
// end on a partial character, we simply let v8 handle that.
function utf16End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) {
    var end = this.lastTotal - this.lastNeed;
    return r + this.lastChar.toString('utf16le', 0, end);
  }
  return r;
}

function base64Text(buf, i) {
  var n = (buf.length - i) % 3;
  if (n === 0) return buf.toString('base64', i);
  this.lastNeed = 3 - n;
  this.lastTotal = 3;
  if (n === 1) {
    this.lastChar[0] = buf[buf.length - 1];
  } else {
    this.lastChar[0] = buf[buf.length - 2];
    this.lastChar[1] = buf[buf.length - 1];
  }
  return buf.toString('base64', i, buf.length - n);
}

function base64End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
  return r;
}

// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
function simpleWrite(buf) {
  return buf.toString(this.encoding);
}

function simpleEnd(buf) {
  return buf && buf.length ? this.write(buf) : '';
}

/***/ }),

/***/ "./node_modules/text-encoding-polyfill/index.js":
/*!******************************************************!*\
  !*** ./node_modules/text-encoding-polyfill/index.js ***!
  \******************************************************/
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

// This is free and unencumbered software released into the public domain.
// See LICENSE.md for more information.

module.exports = __webpack_require__(/*! ./lib/encoding.js */ "./node_modules/text-encoding-polyfill/lib/encoding.js");


/***/ }),

/***/ "./node_modules/text-encoding-polyfill/lib/encoding.js":
/*!*************************************************************!*\
  !*** ./node_modules/text-encoding-polyfill/lib/encoding.js ***!
  \*************************************************************/
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {

// This is free and unencumbered software released into the public domain.
// See LICENSE.md for more information.

/**
 * @fileoverview Global |this| required for resolving indexes in node.
 * @suppress {globalThis}
 */
(function(global) {
  'use strict';

  // If we're in node require encoding-indexes and attach it to the global.
  if ( true && module.exports &&
    !global["encoding-indexes"]) {
      __webpack_require__(/*! ./encoding-indexes.js */ "?2039");
  }

  //
  // Utilities
  //

  /**
   * @param {number} a The number to test.
   * @param {number} min The minimum value in the range, inclusive.
   * @param {number} max The maximum value in the range, inclusive.
   * @return {boolean} True if a >= min and a <= max.
   */
  function inRange(a, min, max) {
    return min <= a && a <= max;
  }

  /**
   * @param {!Array.<*>} array The array to check.
   * @param {*} item The item to look for in the array.
   * @return {boolean} True if the item appears in the array.
   */
  function includes(array, item) {
    return array.indexOf(item) !== -1;
  }

  var floor = Math.floor;

  /**
   * @param {*} o
   * @return {Object}
   */
  function ToDictionary(o) {
    if (o === undefined) return {};
    if (o === Object(o)) return o;
    throw TypeError('Could not convert argument to dictionary');
  }

  /**
   * @param {string} string Input string of UTF-16 code units.
   * @return {!Array.<number>} Code points.
   */
  function stringToCodePoints(string) {
    // https://heycam.github.io/webidl/#dfn-obtain-unicode

    // 1. Let S be the DOMString value.
    var s = String(string);

    // 2. Let n be the length of S.
    var n = s.length;

    // 3. Initialize i to 0.
    var i = 0;

    // 4. Initialize U to be an empty sequence of Unicode characters.
    var u = [];

    // 5. While i < n:
    while (i < n) {

      // 1. Let c be the code unit in S at index i.
      var c = s.charCodeAt(i);

      // 2. Depending on the value of c:

      // c < 0xD800 or c > 0xDFFF
      if (c < 0xD800 || c > 0xDFFF) {
        // Append to U the Unicode character with code point c.
        u.push(c);
      }

      // 0xDC00 ≤ c ≤ 0xDFFF
      else if (0xDC00 <= c && c <= 0xDFFF) {
        // Append to U a U+FFFD REPLACEMENT CHARACTER.
        u.push(0xFFFD);
      }

      // 0xD800 ≤ c ≤ 0xDBFF
      else if (0xD800 <= c && c <= 0xDBFF) {
        // 1. If i = n−1, then append to U a U+FFFD REPLACEMENT
        // CHARACTER.
        if (i === n - 1) {
          u.push(0xFFFD);
        }
        // 2. Otherwise, i < n−1:
        else {
          // 1. Let d be the code unit in S at index i+1.
          var d = s.charCodeAt(i + 1);

          // 2. If 0xDC00 ≤ d ≤ 0xDFFF, then:
          if (0xDC00 <= d && d <= 0xDFFF) {
            // 1. Let a be c & 0x3FF.
            var a = c & 0x3FF;

            // 2. Let b be d & 0x3FF.
            var b = d & 0x3FF;

            // 3. Append to U the Unicode character with code point
            // 2^16+2^10*a+b.
            u.push(0x10000 + (a << 10) + b);

            // 4. Set i to i+1.
            i += 1;
          }

          // 3. Otherwise, d < 0xDC00 or d > 0xDFFF. Append to U a
          // U+FFFD REPLACEMENT CHARACTER.
          else  {
            u.push(0xFFFD);
          }
        }
      }

      // 3. Set i to i+1.
      i += 1;
    }

    // 6. Return U.
    return u;
  }

  /**
   * @param {!Array.<number>} code_points Array of code points.
   * @return {string} string String of UTF-16 code units.
   */
  function codePointsToString(code_points) {
    var s = '';
    for (var i = 0; i < code_points.length; ++i) {
      var cp = code_points[i];
      if (cp <= 0xFFFF) {
        s += String.fromCharCode(cp);
      } else {
        cp -= 0x10000;
        s += String.fromCharCode((cp >> 10) + 0xD800,
                                 (cp & 0x3FF) + 0xDC00);
      }
    }
    return s;
  }


  //
  // Implementation of Encoding specification
  // https://encoding.spec.whatwg.org/
  //

  //
  // 4. Terminology
  //

  /**
   * An ASCII byte is a byte in the range 0x00 to 0x7F, inclusive.
   * @param {number} a The number to test.
   * @return {boolean} True if a is in the range 0x00 to 0x7F, inclusive.
   */
  function isASCIIByte(a) {
    return 0x00 <= a && a <= 0x7F;
  }

  /**
   * An ASCII code point is a code point in the range U+0000 to
   * U+007F, inclusive.
   */
  var isASCIICodePoint = isASCIIByte;


  /**
   * End-of-stream is a special token that signifies no more tokens
   * are in the stream.
   * @const
   */ var end_of_stream = -1;

  /**
   * A stream represents an ordered sequence of tokens.
   *
   * @constructor
   * @param {!(Array.<number>|Uint8Array)} tokens Array of tokens that provide
   * the stream.
   */
  function Stream(tokens) {
    /** @type {!Array.<number>} */
    this.tokens = [].slice.call(tokens);
    // Reversed as push/pop is more efficient than shift/unshift.
    this.tokens.reverse();
  }

  Stream.prototype = {
    /**
     * @return {boolean} True if end-of-stream has been hit.
     */
    endOfStream: function() {
      return !this.tokens.length;
    },

    /**
     * When a token is read from a stream, the first token in the
     * stream must be returned and subsequently removed, and
     * end-of-stream must be returned otherwise.
     *
     * @return {number} Get the next token from the stream, or
     * end_of_stream.
     */
     read: function() {
      if (!this.tokens.length)
        return end_of_stream;
       return this.tokens.pop();
     },

    /**
     * When one or more tokens are prepended to a stream, those tokens
     * must be inserted, in given order, before the first token in the
     * stream.
     *
     * @param {(number|!Array.<number>)} token The token(s) to prepend to the
     * stream.
     */
    prepend: function(token) {
      if (Array.isArray(token)) {
        var tokens = /**@type {!Array.<number>}*/(token);
        while (tokens.length)
          this.tokens.push(tokens.pop());
      } else {
        this.tokens.push(token);
      }
    },

    /**
     * When one or more tokens are pushed to a stream, those tokens
     * must be inserted, in given order, after the last token in the
     * stream.
     *
     * @param {(number|!Array.<number>)} token The tokens(s) to push to the
     * stream.
     */
    push: function(token) {
      if (Array.isArray(token)) {
        var tokens = /**@type {!Array.<number>}*/(token);
        while (tokens.length)
          this.tokens.unshift(tokens.shift());
      } else {
        this.tokens.unshift(token);
      }
    }
  };

  //
  // 5. Encodings
  //

  // 5.1 Encoders and decoders

  /** @const */
  var finished = -1;

  /**
   * @param {boolean} fatal If true, decoding errors raise an exception.
   * @param {number=} opt_code_point Override the standard fallback code point.
   * @return {number} The code point to insert on a decoding error.
   */
  function decoderError(fatal, opt_code_point) {
    if (fatal)
      throw TypeError('Decoder error');
    return opt_code_point || 0xFFFD;
  }

  /**
   * @param {number} code_point The code point that could not be encoded.
   * @return {number} Always throws, no value is actually returned.
   */
  function encoderError(code_point) {
    throw TypeError('The code point ' + code_point + ' could not be encoded.');
  }

  /** @interface */
  function Decoder() {}
  Decoder.prototype = {
    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point, or |finished|.
     */
    handler: function(stream, bite) {}
  };

  /** @interface */
  function Encoder() {}
  Encoder.prototype = {
    /**
     * @param {Stream} stream The stream of code points being encoded.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit, or |finished|.
     */
    handler: function(stream, code_point) {}
  };

  // 5.2 Names and labels

  // TODO: Define @typedef for Encoding: {name:string,labels:Array.<string>}
  // https://github.com/google/closure-compiler/issues/247

  /**
   * @param {string} label The encoding label.
   * @return {?{name:string,labels:Array.<string>}}
   */
  function getEncoding(label) {
    // 1. Remove any leading and trailing ASCII whitespace from label.
    label = String(label).trim().toLowerCase();

    // 2. If label is an ASCII case-insensitive match for any of the
    // labels listed in the table below, return the corresponding
    // encoding, and failure otherwise.
    if (Object.prototype.hasOwnProperty.call(label_to_encoding, label)) {
      return label_to_encoding[label];
    }
    return null;
  }

  /**
   * Encodings table: https://encoding.spec.whatwg.org/encodings.json
   * @const
   * @type {!Array.<{
   *          heading: string,
   *          encodings: Array.<{name:string,labels:Array.<string>}>
   *        }>}
   */
  var encodings = [
    {
      "encodings": [
        {
          "labels": [
            "unicode-1-1-utf-8",
            "utf-8",
            "utf8"
          ],
          "name": "UTF-8"
        }
      ],
      "heading": "The Encoding"
    },
    {
      "encodings": [
        {
          "labels": [
            "866",
            "cp866",
            "csibm866",
            "ibm866"
          ],
          "name": "IBM866"
        },
        {
          "labels": [
            "csisolatin2",
            "iso-8859-2",
            "iso-ir-101",
            "iso8859-2",
            "iso88592",
            "iso_8859-2",
            "iso_8859-2:1987",
            "l2",
            "latin2"
          ],
          "name": "ISO-8859-2"
        },
        {
          "labels": [
            "csisolatin3",
            "iso-8859-3",
            "iso-ir-109",
            "iso8859-3",
            "iso88593",
            "iso_8859-3",
            "iso_8859-3:1988",
            "l3",
            "latin3"
          ],
          "name": "ISO-8859-3"
        },
        {
          "labels": [
            "csisolatin4",
            "iso-8859-4",
            "iso-ir-110",
            "iso8859-4",
            "iso88594",
            "iso_8859-4",
            "iso_8859-4:1988",
            "l4",
            "latin4"
          ],
          "name": "ISO-8859-4"
        },
        {
          "labels": [
            "csisolatincyrillic",
            "cyrillic",
            "iso-8859-5",
            "iso-ir-144",
            "iso8859-5",
            "iso88595",
            "iso_8859-5",
            "iso_8859-5:1988"
          ],
          "name": "ISO-8859-5"
        },
        {
          "labels": [
            "arabic",
            "asmo-708",
            "csiso88596e",
            "csiso88596i",
            "csisolatinarabic",
            "ecma-114",
            "iso-8859-6",
            "iso-8859-6-e",
            "iso-8859-6-i",
            "iso-ir-127",
            "iso8859-6",
            "iso88596",
            "iso_8859-6",
            "iso_8859-6:1987"
          ],
          "name": "ISO-8859-6"
        },
        {
          "labels": [
            "csisolatingreek",
            "ecma-118",
            "elot_928",
            "greek",
            "greek8",
            "iso-8859-7",
            "iso-ir-126",
            "iso8859-7",
            "iso88597",
            "iso_8859-7",
            "iso_8859-7:1987",
            "sun_eu_greek"
          ],
          "name": "ISO-8859-7"
        },
        {
          "labels": [
            "csiso88598e",
            "csisolatinhebrew",
            "hebrew",
            "iso-8859-8",
            "iso-8859-8-e",
            "iso-ir-138",
            "iso8859-8",
            "iso88598",
            "iso_8859-8",
            "iso_8859-8:1988",
            "visual"
          ],
          "name": "ISO-8859-8"
        },
        {
          "labels": [
            "csiso88598i",
            "iso-8859-8-i",
            "logical"
          ],
          "name": "ISO-8859-8-I"
        },
        {
          "labels": [
            "csisolatin6",
            "iso-8859-10",
            "iso-ir-157",
            "iso8859-10",
            "iso885910",
            "l6",
            "latin6"
          ],
          "name": "ISO-8859-10"
        },
        {
          "labels": [
            "iso-8859-13",
            "iso8859-13",
            "iso885913"
          ],
          "name": "ISO-8859-13"
        },
        {
          "labels": [
            "iso-8859-14",
            "iso8859-14",
            "iso885914"
          ],
          "name": "ISO-8859-14"
        },
        {
          "labels": [
            "csisolatin9",
            "iso-8859-15",
            "iso8859-15",
            "iso885915",
            "iso_8859-15",
            "l9"
          ],
          "name": "ISO-8859-15"
        },
        {
          "labels": [
            "iso-8859-16"
          ],
          "name": "ISO-8859-16"
        },
        {
          "labels": [
            "cskoi8r",
            "koi",
            "koi8",
            "koi8-r",
            "koi8_r"
          ],
          "name": "KOI8-R"
        },
        {
          "labels": [
            "koi8-ru",
            "koi8-u"
          ],
          "name": "KOI8-U"
        },
        {
          "labels": [
            "csmacintosh",
            "mac",
            "macintosh",
            "x-mac-roman"
          ],
          "name": "macintosh"
        },
        {
          "labels": [
            "dos-874",
            "iso-8859-11",
            "iso8859-11",
            "iso885911",
            "tis-620",
            "windows-874"
          ],
          "name": "windows-874"
        },
        {
          "labels": [
            "cp1250",
            "windows-1250",
            "x-cp1250"
          ],
          "name": "windows-1250"
        },
        {
          "labels": [
            "cp1251",
            "windows-1251",
            "x-cp1251"
          ],
          "name": "windows-1251"
        },
        {
          "labels": [
            "ansi_x3.4-1968",
            "ascii",
            "cp1252",
            "cp819",
            "csisolatin1",
            "ibm819",
            "iso-8859-1",
            "iso-ir-100",
            "iso8859-1",
            "iso88591",
            "iso_8859-1",
            "iso_8859-1:1987",
            "l1",
            "latin1",
            "us-ascii",
            "windows-1252",
            "x-cp1252"
          ],
          "name": "windows-1252"
        },
        {
          "labels": [
            "cp1253",
            "windows-1253",
            "x-cp1253"
          ],
          "name": "windows-1253"
        },
        {
          "labels": [
            "cp1254",
            "csisolatin5",
            "iso-8859-9",
            "iso-ir-148",
            "iso8859-9",
            "iso88599",
            "iso_8859-9",
            "iso_8859-9:1989",
            "l5",
            "latin5",
            "windows-1254",
            "x-cp1254"
          ],
          "name": "windows-1254"
        },
        {
          "labels": [
            "cp1255",
            "windows-1255",
            "x-cp1255"
          ],
          "name": "windows-1255"
        },
        {
          "labels": [
            "cp1256",
            "windows-1256",
            "x-cp1256"
          ],
          "name": "windows-1256"
        },
        {
          "labels": [
            "cp1257",
            "windows-1257",
            "x-cp1257"
          ],
          "name": "windows-1257"
        },
        {
          "labels": [
            "cp1258",
            "windows-1258",
            "x-cp1258"
          ],
          "name": "windows-1258"
        },
        {
          "labels": [
            "x-mac-cyrillic",
            "x-mac-ukrainian"
          ],
          "name": "x-mac-cyrillic"
        }
      ],
      "heading": "Legacy single-byte encodings"
    },
    {
      "encodings": [
        {
          "labels": [
            "chinese",
            "csgb2312",
            "csiso58gb231280",
            "gb2312",
            "gb_2312",
            "gb_2312-80",
            "gbk",
            "iso-ir-58",
            "x-gbk"
          ],
          "name": "GBK"
        },
        {
          "labels": [
            "gb18030"
          ],
          "name": "gb18030"
        }
      ],
      "heading": "Legacy multi-byte Chinese (simplified) encodings"
    },
    {
      "encodings": [
        {
          "labels": [
            "big5",
            "big5-hkscs",
            "cn-big5",
            "csbig5",
            "x-x-big5"
          ],
          "name": "Big5"
        }
      ],
      "heading": "Legacy multi-byte Chinese (traditional) encodings"
    },
    {
      "encodings": [
        {
          "labels": [
            "cseucpkdfmtjapanese",
            "euc-jp",
            "x-euc-jp"
          ],
          "name": "EUC-JP"
        },
        {
          "labels": [
            "csiso2022jp",
            "iso-2022-jp"
          ],
          "name": "ISO-2022-JP"
        },
        {
          "labels": [
            "csshiftjis",
            "ms932",
            "ms_kanji",
            "shift-jis",
            "shift_jis",
            "sjis",
            "windows-31j",
            "x-sjis"
          ],
          "name": "Shift_JIS"
        }
      ],
      "heading": "Legacy multi-byte Japanese encodings"
    },
    {
      "encodings": [
        {
          "labels": [
            "cseuckr",
            "csksc56011987",
            "euc-kr",
            "iso-ir-149",
            "korean",
            "ks_c_5601-1987",
            "ks_c_5601-1989",
            "ksc5601",
            "ksc_5601",
            "windows-949"
          ],
          "name": "EUC-KR"
        }
      ],
      "heading": "Legacy multi-byte Korean encodings"
    },
    {
      "encodings": [
        {
          "labels": [
            "csiso2022kr",
            "hz-gb-2312",
            "iso-2022-cn",
            "iso-2022-cn-ext",
            "iso-2022-kr"
          ],
          "name": "replacement"
        },
        {
          "labels": [
            "utf-16be"
          ],
          "name": "UTF-16BE"
        },
        {
          "labels": [
            "utf-16",
            "utf-16le"
          ],
          "name": "UTF-16LE"
        },
        {
          "labels": [
            "x-user-defined"
          ],
          "name": "x-user-defined"
        }
      ],
      "heading": "Legacy miscellaneous encodings"
    }
  ];

  // Label to encoding registry.
  /** @type {Object.<string,{name:string,labels:Array.<string>}>} */
  var label_to_encoding = {};
  encodings.forEach(function(category) {
    category.encodings.forEach(function(encoding) {
      encoding.labels.forEach(function(label) {
        label_to_encoding[label] = encoding;
      });
    });
  });

  // Registry of of encoder/decoder factories, by encoding name.
  /** @type {Object.<string, function({fatal:boolean}): Encoder>} */
  var encoders = {};
  /** @type {Object.<string, function({fatal:boolean}): Decoder>} */
  var decoders = {};

  //
  // 6. Indexes
  //

  /**
   * @param {number} pointer The |pointer| to search for.
   * @param {(!Array.<?number>|undefined)} index The |index| to search within.
   * @return {?number} The code point corresponding to |pointer| in |index|,
   *     or null if |code point| is not in |index|.
   */
  function indexCodePointFor(pointer, index) {
    if (!index) return null;
    return index[pointer] || null;
  }

  /**
   * @param {number} code_point The |code point| to search for.
   * @param {!Array.<?number>} index The |index| to search within.
   * @return {?number} The first pointer corresponding to |code point| in
   *     |index|, or null if |code point| is not in |index|.
   */
  function indexPointerFor(code_point, index) {
    var pointer = index.indexOf(code_point);
    return pointer === -1 ? null : pointer;
  }

  /**
   * @param {string} name Name of the index.
   * @return {(!Array.<number>|!Array.<Array.<number>>)}
   *  */
  function index(name) {
    if (!('encoding-indexes' in global)) {
      throw Error("Indexes missing." +
                  " Did you forget to include encoding-indexes.js first?");
    }
    return global['encoding-indexes'][name];
  }

  /**
   * @param {number} pointer The |pointer| to search for in the gb18030 index.
   * @return {?number} The code point corresponding to |pointer| in |index|,
   *     or null if |code point| is not in the gb18030 index.
   */
  function indexGB18030RangesCodePointFor(pointer) {
    // 1. If pointer is greater than 39419 and less than 189000, or
    // pointer is greater than 1237575, return null.
    if ((pointer > 39419 && pointer < 189000) || (pointer > 1237575))
      return null;

    // 2. If pointer is 7457, return code point U+E7C7.
    if (pointer === 7457) return 0xE7C7;

    // 3. Let offset be the last pointer in index gb18030 ranges that
    // is equal to or less than pointer and let code point offset be
    // its corresponding code point.
    var offset = 0;
    var code_point_offset = 0;
    var idx = index('gb18030-ranges');
    var i;
    for (i = 0; i < idx.length; ++i) {
      /** @type {!Array.<number>} */
      var entry = idx[i];
      if (entry[0] <= pointer) {
        offset = entry[0];
        code_point_offset = entry[1];
      } else {
        break;
      }
    }

    // 4. Return a code point whose value is code point offset +
    // pointer − offset.
    return code_point_offset + pointer - offset;
  }

  /**
   * @param {number} code_point The |code point| to locate in the gb18030 index.
   * @return {number} The first pointer corresponding to |code point| in the
   *     gb18030 index.
   */
  function indexGB18030RangesPointerFor(code_point) {
    // 1. If code point is U+E7C7, return pointer 7457.
    if (code_point === 0xE7C7) return 7457;

    // 2. Let offset be the last code point in index gb18030 ranges
    // that is equal to or less than code point and let pointer offset
    // be its corresponding pointer.
    var offset = 0;
    var pointer_offset = 0;
    var idx = index('gb18030-ranges');
    var i;
    for (i = 0; i < idx.length; ++i) {
      /** @type {!Array.<number>} */
      var entry = idx[i];
      if (entry[1] <= code_point) {
        offset = entry[1];
        pointer_offset = entry[0];
      } else {
        break;
      }
    }

    // 3. Return a pointer whose value is pointer offset + code point
    // − offset.
    return pointer_offset + code_point - offset;
  }

  /**
   * @param {number} code_point The |code_point| to search for in the Shift_JIS
   *     index.
   * @return {?number} The code point corresponding to |pointer| in |index|,
   *     or null if |code point| is not in the Shift_JIS index.
   */
  function indexShiftJISPointerFor(code_point) {
    // 1. Let index be index jis0208 excluding all entries whose
    // pointer is in the range 8272 to 8835, inclusive.
    shift_jis_index = shift_jis_index ||
      index('jis0208').map(function(code_point, pointer) {
        return inRange(pointer, 8272, 8835) ? null : code_point;
      });
    var index_ = shift_jis_index;

    // 2. Return the index pointer for code point in index.
    return index_.indexOf(code_point);
  }
  var shift_jis_index;

  /**
   * @param {number} code_point The |code_point| to search for in the big5
   *     index.
   * @return {?number} The code point corresponding to |pointer| in |index|,
   *     or null if |code point| is not in the big5 index.
   */
  function indexBig5PointerFor(code_point) {
    // 1. Let index be index Big5 excluding all entries whose pointer
    big5_index_no_hkscs = big5_index_no_hkscs ||
      index('big5').map(function(code_point, pointer) {
        return (pointer < (0xA1 - 0x81) * 157) ? null : code_point;
      });
    var index_ = big5_index_no_hkscs;

    // 2. If code point is U+2550, U+255E, U+2561, U+256A, U+5341, or
    // U+5345, return the last pointer corresponding to code point in
    // index.
    if (code_point === 0x2550 || code_point === 0x255E ||
        code_point === 0x2561 || code_point === 0x256A ||
        code_point === 0x5341 || code_point === 0x5345) {
      return index_.lastIndexOf(code_point);
    }

    // 3. Return the index pointer for code point in index.
    return indexPointerFor(code_point, index_);
  }
  var big5_index_no_hkscs;

  //
  // 8. API
  //

  /** @const */ var DEFAULT_ENCODING = 'utf-8';

  // 8.1 Interface TextDecoder

  /**
   * @constructor
   * @param {string=} label The label of the encoding;
   *     defaults to 'utf-8'.
   * @param {Object=} options
   */
  function TextDecoder(label, options) {
    // Web IDL conventions
    if (!(this instanceof TextDecoder))
      throw TypeError('Called as a function. Did you forget \'new\'?');
    label = label !== undefined ? String(label) : DEFAULT_ENCODING;
    options = ToDictionary(options);

    // A TextDecoder object has an associated encoding, decoder,
    // stream, ignore BOM flag (initially unset), BOM seen flag
    // (initially unset), error mode (initially replacement), and do
    // not flush flag (initially unset).

    /** @private */
    this._encoding = null;
    /** @private @type {?Decoder} */
    this._decoder = null;
    /** @private @type {boolean} */
    this._ignoreBOM = false;
    /** @private @type {boolean} */
    this._BOMseen = false;
    /** @private @type {string} */
    this._error_mode = 'replacement';
    /** @private @type {boolean} */
    this._do_not_flush = false;


    // 1. Let encoding be the result of getting an encoding from
    // label.
    var encoding = getEncoding(label);

    // 2. If encoding is failure or replacement, throw a RangeError.
    if (encoding === null || encoding.name === 'replacement')
      throw RangeError('Unknown encoding: ' + label);
    if (!decoders[encoding.name]) {
      throw Error('Decoder not present.' +
                  ' Did you forget to include encoding-indexes.js first?');
    }

    // 3. Let dec be a new TextDecoder object.
    var dec = this;

    // 4. Set dec's encoding to encoding.
    dec._encoding = encoding;

    // 5. If options's fatal member is true, set dec's error mode to
    // fatal.
    if (Boolean(options['fatal']))
      dec._error_mode = 'fatal';

    // 6. If options's ignoreBOM member is true, set dec's ignore BOM
    // flag.
    if (Boolean(options['ignoreBOM']))
      dec._ignoreBOM = true;

    // For pre-ES5 runtimes:
    if (!Object.defineProperty) {
      this.encoding = dec._encoding.name.toLowerCase();
      this.fatal = dec._error_mode === 'fatal';
      this.ignoreBOM = dec._ignoreBOM;
    }

    // 7. Return dec.
    return dec;
  }

  if (Object.defineProperty) {
    // The encoding attribute's getter must return encoding's name.
    Object.defineProperty(TextDecoder.prototype, 'encoding', {
      /** @this {TextDecoder} */
      get: function() { return this._encoding.name.toLowerCase(); }
    });

    // The fatal attribute's getter must return true if error mode
    // is fatal, and false otherwise.
    Object.defineProperty(TextDecoder.prototype, 'fatal', {
      /** @this {TextDecoder} */
      get: function() { return this._error_mode === 'fatal'; }
    });

    // The ignoreBOM attribute's getter must return true if ignore
    // BOM flag is set, and false otherwise.
    Object.defineProperty(TextDecoder.prototype, 'ignoreBOM', {
      /** @this {TextDecoder} */
      get: function() { return this._ignoreBOM; }
    });
  }

  /**
   * @param {BufferSource=} input The buffer of bytes to decode.
   * @param {Object=} options
   * @return {string} The decoded string.
   */
  TextDecoder.prototype.decode = function decode(input, options) {
    var bytes;
    if (typeof input === 'object' && input instanceof ArrayBuffer) {
      bytes = new Uint8Array(input);
    } else if (typeof input === 'object' && 'buffer' in input &&
               input.buffer instanceof ArrayBuffer) {
      bytes = new Uint8Array(input.buffer,
                             input.byteOffset,
                             input.byteLength);
    } else {
      bytes = new Uint8Array(0);
    }

    options = ToDictionary(options);

    // 1. If the do not flush flag is unset, set decoder to a new
    // encoding's decoder, set stream to a new stream, and unset the
    // BOM seen flag.
    if (!this._do_not_flush) {
      this._decoder = decoders[this._encoding.name]({
        fatal: this._error_mode === 'fatal'});
      this._BOMseen = false;
    }

    // 2. If options's stream is true, set the do not flush flag, and
    // unset the do not flush flag otherwise.
    this._do_not_flush = Boolean(options['stream']);

    // 3. If input is given, push a copy of input to stream.
    // TODO: Align with spec algorithm - maintain stream on instance.
    var input_stream = new Stream(bytes);

    // 4. Let output be a new stream.
    var output = [];

    /** @type {?(number|!Array.<number>)} */
    var result;

    // 5. While true:
    while (true) {
      // 1. Let token be the result of reading from stream.
      var token = input_stream.read();

      // 2. If token is end-of-stream and the do not flush flag is
      // set, return output, serialized.
      // TODO: Align with spec algorithm.
      if (token === end_of_stream)
        break;

      // 3. Otherwise, run these subsubsteps:

      // 1. Let result be the result of processing token for decoder,
      // stream, output, and error mode.
      result = this._decoder.handler(input_stream, token);

      // 2. If result is finished, return output, serialized.
      if (result === finished)
        break;

      if (result !== null) {
        if (Array.isArray(result))
          output.push.apply(output, /**@type {!Array.<number>}*/(result));
        else
          output.push(result);
      }

      // 3. Otherwise, if result is error, throw a TypeError.
      // (Thrown in handler)

      // 4. Otherwise, do nothing.
    }
    // TODO: Align with spec algorithm.
    if (!this._do_not_flush) {
      do {
        result = this._decoder.handler(input_stream, input_stream.read());
        if (result === finished)
          break;
        if (result === null)
          continue;
        if (Array.isArray(result))
          output.push.apply(output, /**@type {!Array.<number>}*/(result));
        else
          output.push(result);
      } while (!input_stream.endOfStream());
      this._decoder = null;
    }

    // A TextDecoder object also has an associated serialize stream
    // algorithm...
    /**
     * @param {!Array.<number>} stream
     * @return {string}
     * @this {TextDecoder}
     */
    function serializeStream(stream) {
      // 1. Let token be the result of reading from stream.
      // (Done in-place on array, rather than as a stream)

      // 2. If encoding is UTF-8, UTF-16BE, or UTF-16LE, and ignore
      // BOM flag and BOM seen flag are unset, run these subsubsteps:
      if (includes(['UTF-8', 'UTF-16LE', 'UTF-16BE'], this._encoding.name) &&
          !this._ignoreBOM && !this._BOMseen) {
        if (stream.length > 0 && stream[0] === 0xFEFF) {
          // 1. If token is U+FEFF, set BOM seen flag.
          this._BOMseen = true;
          stream.shift();
        } else if (stream.length > 0) {
          // 2. Otherwise, if token is not end-of-stream, set BOM seen
          // flag and append token to stream.
          this._BOMseen = true;
        } else {
          // 3. Otherwise, if token is not end-of-stream, append token
          // to output.
          // (no-op)
        }
      }
      // 4. Otherwise, return output.
      return codePointsToString(stream);
    }

    return serializeStream.call(this, output);
  };

  // 8.2 Interface TextEncoder

  /**
   * @constructor
   * @param {string=} label The label of the encoding. NONSTANDARD.
   * @param {Object=} options NONSTANDARD.
   */
  function TextEncoder(label, options) {
    // Web IDL conventions
    if (!(this instanceof TextEncoder))
      throw TypeError('Called as a function. Did you forget \'new\'?');
    options = ToDictionary(options);

    // A TextEncoder object has an associated encoding and encoder.

    /** @private */
    this._encoding = null;
    /** @private @type {?Encoder} */
    this._encoder = null;

    // Non-standard
    /** @private @type {boolean} */
    this._do_not_flush = false;
    /** @private @type {string} */
    this._fatal = Boolean(options['fatal']) ? 'fatal' : 'replacement';

    // 1. Let enc be a new TextEncoder object.
    var enc = this;

    // 2. Set enc's encoding to UTF-8's encoder.
    if (Boolean(options['NONSTANDARD_allowLegacyEncoding'])) {
      // NONSTANDARD behavior.
      label = label !== undefined ? String(label) : DEFAULT_ENCODING;
      var encoding = getEncoding(label);
      if (encoding === null || encoding.name === 'replacement')
        throw RangeError('Unknown encoding: ' + label);
      if (!encoders[encoding.name]) {
        throw Error('Encoder not present.' +
                    ' Did you forget to include encoding-indexes.js first?');
      }
      enc._encoding = encoding;
    } else {
      // Standard behavior.
      enc._encoding = getEncoding('utf-8');

      if (label !== undefined && 'console' in global) {
        console.warn('TextEncoder constructor called with encoding label, '
                     + 'which is ignored.');
      }
    }

    // For pre-ES5 runtimes:
    if (!Object.defineProperty)
      this.encoding = enc._encoding.name.toLowerCase();

    // 3. Return enc.
    return enc;
  }

  if (Object.defineProperty) {
    // The encoding attribute's getter must return encoding's name.
    Object.defineProperty(TextEncoder.prototype, 'encoding', {
      /** @this {TextEncoder} */
      get: function() { return this._encoding.name.toLowerCase(); }
    });
  }

  /**
   * @param {string=} opt_string The string to encode.
   * @param {Object=} options
   * @return {!Uint8Array} Encoded bytes, as a Uint8Array.
   */
  TextEncoder.prototype.encode = function encode(opt_string, options) {
    opt_string = opt_string === undefined ? '' : String(opt_string);
    options = ToDictionary(options);

    // NOTE: This option is nonstandard. None of the encodings
    // permitted for encoding (i.e. UTF-8, UTF-16) are stateful when
    // the input is a USVString so streaming is not necessary.
    if (!this._do_not_flush)
      this._encoder = encoders[this._encoding.name]({
        fatal: this._fatal === 'fatal'});
    this._do_not_flush = Boolean(options['stream']);

    // 1. Convert input to a stream.
    var input = new Stream(stringToCodePoints(opt_string));

    // 2. Let output be a new stream
    var output = [];

    /** @type {?(number|!Array.<number>)} */
    var result;
    // 3. While true, run these substeps:
    while (true) {
      // 1. Let token be the result of reading from input.
      var token = input.read();
      if (token === end_of_stream)
        break;
      // 2. Let result be the result of processing token for encoder,
      // input, output.
      result = this._encoder.handler(input, token);
      if (result === finished)
        break;
      if (Array.isArray(result))
        output.push.apply(output, /**@type {!Array.<number>}*/(result));
      else
        output.push(result);
    }
    // TODO: Align with spec algorithm.
    if (!this._do_not_flush) {
      while (true) {
        result = this._encoder.handler(input, input.read());
        if (result === finished)
          break;
        if (Array.isArray(result))
          output.push.apply(output, /**@type {!Array.<number>}*/(result));
        else
          output.push(result);
      }
      this._encoder = null;
    }
    // 3. If result is finished, convert output into a byte sequence,
    // and then return a Uint8Array object wrapping an ArrayBuffer
    // containing output.
    return new Uint8Array(output);
  };


  //
  // 9. The encoding
  //

  // 9.1 utf-8

  // 9.1.1 utf-8 decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {{fatal: boolean}} options
   */
  function UTF8Decoder(options) {
    var fatal = options.fatal;

    // utf-8's decoder's has an associated utf-8 code point, utf-8
    // bytes seen, and utf-8 bytes needed (all initially 0), a utf-8
    // lower boundary (initially 0x80), and a utf-8 upper boundary
    // (initially 0xBF).
    var /** @type {number} */ utf8_code_point = 0,
        /** @type {number} */ utf8_bytes_seen = 0,
        /** @type {number} */ utf8_bytes_needed = 0,
        /** @type {number} */ utf8_lower_boundary = 0x80,
        /** @type {number} */ utf8_upper_boundary = 0xBF;

    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // 1. If byte is end-of-stream and utf-8 bytes needed is not 0,
      // set utf-8 bytes needed to 0 and return error.
      if (bite === end_of_stream && utf8_bytes_needed !== 0) {
        utf8_bytes_needed = 0;
        return decoderError(fatal);
      }

      // 2. If byte is end-of-stream, return finished.
      if (bite === end_of_stream)
        return finished;

      // 3. If utf-8 bytes needed is 0, based on byte:
      if (utf8_bytes_needed === 0) {

        // 0x00 to 0x7F
        if (inRange(bite, 0x00, 0x7F)) {
          // Return a code point whose value is byte.
          return bite;
        }

        // 0xC2 to 0xDF
        else if (inRange(bite, 0xC2, 0xDF)) {
          // 1. Set utf-8 bytes needed to 1.
          utf8_bytes_needed = 1;

          // 2. Set UTF-8 code point to byte & 0x1F.
          utf8_code_point = bite & 0x1F;
        }

        // 0xE0 to 0xEF
        else if (inRange(bite, 0xE0, 0xEF)) {
          // 1. If byte is 0xE0, set utf-8 lower boundary to 0xA0.
          if (bite === 0xE0)
            utf8_lower_boundary = 0xA0;
          // 2. If byte is 0xED, set utf-8 upper boundary to 0x9F.
          if (bite === 0xED)
            utf8_upper_boundary = 0x9F;
          // 3. Set utf-8 bytes needed to 2.
          utf8_bytes_needed = 2;
          // 4. Set UTF-8 code point to byte & 0xF.
          utf8_code_point = bite & 0xF;
        }

        // 0xF0 to 0xF4
        else if (inRange(bite, 0xF0, 0xF4)) {
          // 1. If byte is 0xF0, set utf-8 lower boundary to 0x90.
          if (bite === 0xF0)
            utf8_lower_boundary = 0x90;
          // 2. If byte is 0xF4, set utf-8 upper boundary to 0x8F.
          if (bite === 0xF4)
            utf8_upper_boundary = 0x8F;
          // 3. Set utf-8 bytes needed to 3.
          utf8_bytes_needed = 3;
          // 4. Set UTF-8 code point to byte & 0x7.
          utf8_code_point = bite & 0x7;
        }

        // Otherwise
        else {
          // Return error.
          return decoderError(fatal);
        }

        // Return continue.
        return null;
      }

      // 4. If byte is not in the range utf-8 lower boundary to utf-8
      // upper boundary, inclusive, run these substeps:
      if (!inRange(bite, utf8_lower_boundary, utf8_upper_boundary)) {

        // 1. Set utf-8 code point, utf-8 bytes needed, and utf-8
        // bytes seen to 0, set utf-8 lower boundary to 0x80, and set
        // utf-8 upper boundary to 0xBF.
        utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0;
        utf8_lower_boundary = 0x80;
        utf8_upper_boundary = 0xBF;

        // 2. Prepend byte to stream.
        stream.prepend(bite);

        // 3. Return error.
        return decoderError(fatal);
      }

      // 5. Set utf-8 lower boundary to 0x80 and utf-8 upper boundary
      // to 0xBF.
      utf8_lower_boundary = 0x80;
      utf8_upper_boundary = 0xBF;

      // 6. Set UTF-8 code point to (UTF-8 code point << 6) | (byte &
      // 0x3F)
      utf8_code_point = (utf8_code_point << 6) | (bite & 0x3F);

      // 7. Increase utf-8 bytes seen by one.
      utf8_bytes_seen += 1;

      // 8. If utf-8 bytes seen is not equal to utf-8 bytes needed,
      // continue.
      if (utf8_bytes_seen !== utf8_bytes_needed)
        return null;

      // 9. Let code point be utf-8 code point.
      var code_point = utf8_code_point;

      // 10. Set utf-8 code point, utf-8 bytes needed, and utf-8 bytes
      // seen to 0.
      utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0;

      // 11. Return a code point whose value is code point.
      return code_point;
    };
  }

  // 9.1.2 utf-8 encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {{fatal: boolean}} options
   */
  function UTF8Encoder(options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1. If code point is end-of-stream, return finished.
      if (code_point === end_of_stream)
        return finished;

      // 2. If code point is an ASCII code point, return a byte whose
      // value is code point.
      if (isASCIICodePoint(code_point))
        return code_point;

      // 3. Set count and offset based on the range code point is in:
      var count, offset;
      // U+0080 to U+07FF, inclusive:
      if (inRange(code_point, 0x0080, 0x07FF)) {
        // 1 and 0xC0
        count = 1;
        offset = 0xC0;
      }
      // U+0800 to U+FFFF, inclusive:
      else if (inRange(code_point, 0x0800, 0xFFFF)) {
        // 2 and 0xE0
        count = 2;
        offset = 0xE0;
      }
      // U+10000 to U+10FFFF, inclusive:
      else if (inRange(code_point, 0x10000, 0x10FFFF)) {
        // 3 and 0xF0
        count = 3;
        offset = 0xF0;
      }

      // 4. Let bytes be a byte sequence whose first byte is (code
      // point >> (6 × count)) + offset.
      var bytes = [(code_point >> (6 * count)) + offset];

      // 5. Run these substeps while count is greater than 0:
      while (count > 0) {

        // 1. Set temp to code point >> (6 × (count − 1)).
        var temp = code_point >> (6 * (count - 1));

        // 2. Append to bytes 0x80 | (temp & 0x3F).
        bytes.push(0x80 | (temp & 0x3F));

        // 3. Decrease count by one.
        count -= 1;
      }

      // 6. Return bytes bytes, in order.
      return bytes;
    };
  }

  /** @param {{fatal: boolean}} options */
  encoders['UTF-8'] = function(options) {
    return new UTF8Encoder(options);
  };
  /** @param {{fatal: boolean}} options */
  decoders['UTF-8'] = function(options) {
    return new UTF8Decoder(options);
  };

  //
  // 10. Legacy single-byte encodings
  //

  // 10.1 single-byte decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {!Array.<number>} index The encoding index.
   * @param {{fatal: boolean}} options
   */
  function SingleByteDecoder(index, options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // 1. If byte is end-of-stream, return finished.
      if (bite === end_of_stream)
        return finished;

      // 2. If byte is an ASCII byte, return a code point whose value
      // is byte.
      if (isASCIIByte(bite))
        return bite;

      // 3. Let code point be the index code point for byte − 0x80 in
      // index single-byte.
      var code_point = index[bite - 0x80];

      // 4. If code point is null, return error.
      if (code_point === null)
        return decoderError(fatal);

      // 5. Return a code point whose value is code point.
      return code_point;
    };
  }

  // 10.2 single-byte encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {!Array.<?number>} index The encoding index.
   * @param {{fatal: boolean}} options
   */
  function SingleByteEncoder(index, options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1. If code point is end-of-stream, return finished.
      if (code_point === end_of_stream)
        return finished;

      // 2. If code point is an ASCII code point, return a byte whose
      // value is code point.
      if (isASCIICodePoint(code_point))
        return code_point;

      // 3. Let pointer be the index pointer for code point in index
      // single-byte.
      var pointer = indexPointerFor(code_point, index);

      // 4. If pointer is null, return error with code point.
      if (pointer === null)
        encoderError(code_point);

      // 5. Return a byte whose value is pointer + 0x80.
      return pointer + 0x80;
    };
  }

  (function() {
    if (!('encoding-indexes' in global))
      return;
    encodings.forEach(function(category) {
      if (category.heading !== 'Legacy single-byte encodings')
        return;
      category.encodings.forEach(function(encoding) {
        var name = encoding.name;
        var idx = index(name.toLowerCase());
        /** @param {{fatal: boolean}} options */
        decoders[name] = function(options) {
          return new SingleByteDecoder(idx, options);
        };
        /** @param {{fatal: boolean}} options */
        encoders[name] = function(options) {
          return new SingleByteEncoder(idx, options);
        };
      });
    });
  }());

  //
  // 11. Legacy multi-byte Chinese (simplified) encodings
  //

  // 11.1 gbk

  // 11.1.1 gbk decoder
  // gbk's decoder is gb18030's decoder.
  /** @param {{fatal: boolean}} options */
  decoders['GBK'] = function(options) {
    return new GB18030Decoder(options);
  };

  // 11.1.2 gbk encoder
  // gbk's encoder is gb18030's encoder with its gbk flag set.
  /** @param {{fatal: boolean}} options */
  encoders['GBK'] = function(options) {
    return new GB18030Encoder(options, true);
  };

  // 11.2 gb18030

  // 11.2.1 gb18030 decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {{fatal: boolean}} options
   */
  function GB18030Decoder(options) {
    var fatal = options.fatal;
    // gb18030's decoder has an associated gb18030 first, gb18030
    // second, and gb18030 third (all initially 0x00).
    var /** @type {number} */ gb18030_first = 0x00,
        /** @type {number} */ gb18030_second = 0x00,
        /** @type {number} */ gb18030_third = 0x00;
    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // 1. If byte is end-of-stream and gb18030 first, gb18030
      // second, and gb18030 third are 0x00, return finished.
      if (bite === end_of_stream && gb18030_first === 0x00 &&
          gb18030_second === 0x00 && gb18030_third === 0x00) {
        return finished;
      }
      // 2. If byte is end-of-stream, and gb18030 first, gb18030
      // second, or gb18030 third is not 0x00, set gb18030 first,
      // gb18030 second, and gb18030 third to 0x00, and return error.
      if (bite === end_of_stream &&
          (gb18030_first !== 0x00 || gb18030_second !== 0x00 ||
           gb18030_third !== 0x00)) {
        gb18030_first = 0x00;
        gb18030_second = 0x00;
        gb18030_third = 0x00;
        decoderError(fatal);
      }
      var code_point;
      // 3. If gb18030 third is not 0x00, run these substeps:
      if (gb18030_third !== 0x00) {
        // 1. Let code point be null.
        code_point = null;
        // 2. If byte is in the range 0x30 to 0x39, inclusive, set
        // code point to the index gb18030 ranges code point for
        // (((gb18030 first − 0x81) × 10 + gb18030 second − 0x30) ×
        // 126 + gb18030 third − 0x81) × 10 + byte − 0x30.
        if (inRange(bite, 0x30, 0x39)) {
          code_point = indexGB18030RangesCodePointFor(
              (((gb18030_first - 0x81) * 10 + gb18030_second - 0x30) * 126 +
               gb18030_third - 0x81) * 10 + bite - 0x30);
        }

        // 3. Let buffer be a byte sequence consisting of gb18030
        // second, gb18030 third, and byte, in order.
        var buffer = [gb18030_second, gb18030_third, bite];

        // 4. Set gb18030 first, gb18030 second, and gb18030 third to
        // 0x00.
        gb18030_first = 0x00;
        gb18030_second = 0x00;
        gb18030_third = 0x00;

        // 5. If code point is null, prepend buffer to stream and
        // return error.
        if (code_point === null) {
          stream.prepend(buffer);
          return decoderError(fatal);
        }

        // 6. Return a code point whose value is code point.
        return code_point;
      }

      // 4. If gb18030 second is not 0x00, run these substeps:
      if (gb18030_second !== 0x00) {

        // 1. If byte is in the range 0x81 to 0xFE, inclusive, set
        // gb18030 third to byte and return continue.
        if (inRange(bite, 0x81, 0xFE)) {
          gb18030_third = bite;
          return null;
        }

        // 2. Prepend gb18030 second followed by byte to stream, set
        // gb18030 first and gb18030 second to 0x00, and return error.
        stream.prepend([gb18030_second, bite]);
        gb18030_first = 0x00;
        gb18030_second = 0x00;
        return decoderError(fatal);
      }

      // 5. If gb18030 first is not 0x00, run these substeps:
      if (gb18030_first !== 0x00) {

        // 1. If byte is in the range 0x30 to 0x39, inclusive, set
        // gb18030 second to byte and return continue.
        if (inRange(bite, 0x30, 0x39)) {
          gb18030_second = bite;
          return null;
        }

        // 2. Let lead be gb18030 first, let pointer be null, and set
        // gb18030 first to 0x00.
        var lead = gb18030_first;
        var pointer = null;
        gb18030_first = 0x00;

        // 3. Let offset be 0x40 if byte is less than 0x7F and 0x41
        // otherwise.
        var offset = bite < 0x7F ? 0x40 : 0x41;

        // 4. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80
        // to 0xFE, inclusive, set pointer to (lead − 0x81) × 190 +
        // (byte − offset).
        if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFE))
          pointer = (lead - 0x81) * 190 + (bite - offset);

        // 5. Let code point be null if pointer is null and the index
        // code point for pointer in index gb18030 otherwise.
        code_point = pointer === null ? null :
            indexCodePointFor(pointer, index('gb18030'));

        // 6. If code point is null and byte is an ASCII byte, prepend
        // byte to stream.
        if (code_point === null && isASCIIByte(bite))
          stream.prepend(bite);

        // 7. If code point is null, return error.
        if (code_point === null)
          return decoderError(fatal);

        // 8. Return a code point whose value is code point.
        return code_point;
      }

      // 6. If byte is an ASCII byte, return a code point whose value
      // is byte.
      if (isASCIIByte(bite))
        return bite;

      // 7. If byte is 0x80, return code point U+20AC.
      if (bite === 0x80)
        return 0x20AC;

      // 8. If byte is in the range 0x81 to 0xFE, inclusive, set
      // gb18030 first to byte and return continue.
      if (inRange(bite, 0x81, 0xFE)) {
        gb18030_first = bite;
        return null;
      }

      // 9. Return error.
      return decoderError(fatal);
    };
  }

  // 11.2.2 gb18030 encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {{fatal: boolean}} options
   * @param {boolean=} gbk_flag
   */
  function GB18030Encoder(options, gbk_flag) {
    var fatal = options.fatal;
    // gb18030's decoder has an associated gbk flag (initially unset).
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1. If code point is end-of-stream, return finished.
      if (code_point === end_of_stream)
        return finished;

      // 2. If code point is an ASCII code point, return a byte whose
      // value is code point.
      if (isASCIICodePoint(code_point))
        return code_point;

      // 3. If code point is U+E5E5, return error with code point.
      if (code_point === 0xE5E5)
        return encoderError(code_point);

      // 4. If the gbk flag is set and code point is U+20AC, return
      // byte 0x80.
      if (gbk_flag && code_point === 0x20AC)
        return 0x80;

      // 5. Let pointer be the index pointer for code point in index
      // gb18030.
      var pointer = indexPointerFor(code_point, index('gb18030'));

      // 6. If pointer is not null, run these substeps:
      if (pointer !== null) {

        // 1. Let lead be floor(pointer / 190) + 0x81.
        var lead = floor(pointer / 190) + 0x81;

        // 2. Let trail be pointer % 190.
        var trail = pointer % 190;

        // 3. Let offset be 0x40 if trail is less than 0x3F and 0x41 otherwise.
        var offset = trail < 0x3F ? 0x40 : 0x41;

        // 4. Return two bytes whose values are lead and trail + offset.
        return [lead, trail + offset];
      }

      // 7. If gbk flag is set, return error with code point.
      if (gbk_flag)
        return encoderError(code_point);

      // 8. Set pointer to the index gb18030 ranges pointer for code
      // point.
      pointer = indexGB18030RangesPointerFor(code_point);

      // 9. Let byte1 be floor(pointer / 10 / 126 / 10).
      var byte1 = floor(pointer / 10 / 126 / 10);

      // 10. Set pointer to pointer − byte1 × 10 × 126 × 10.
      pointer = pointer - byte1 * 10 * 126 * 10;

      // 11. Let byte2 be floor(pointer / 10 / 126).
      var byte2 = floor(pointer / 10 / 126);

      // 12. Set pointer to pointer − byte2 × 10 × 126.
      pointer = pointer - byte2 * 10 * 126;

      // 13. Let byte3 be floor(pointer / 10).
      var byte3 = floor(pointer / 10);

      // 14. Let byte4 be pointer − byte3 × 10.
      var byte4 = pointer - byte3 * 10;

      // 15. Return four bytes whose values are byte1 + 0x81, byte2 +
      // 0x30, byte3 + 0x81, byte4 + 0x30.
      return [byte1 + 0x81,
              byte2 + 0x30,
              byte3 + 0x81,
              byte4 + 0x30];
    };
  }

  /** @param {{fatal: boolean}} options */
  encoders['gb18030'] = function(options) {
    return new GB18030Encoder(options);
  };
  /** @param {{fatal: boolean}} options */
  decoders['gb18030'] = function(options) {
    return new GB18030Decoder(options);
  };


  //
  // 12. Legacy multi-byte Chinese (traditional) encodings
  //

  // 12.1 Big5

  // 12.1.1 Big5 decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {{fatal: boolean}} options
   */
  function Big5Decoder(options) {
    var fatal = options.fatal;
    // Big5's decoder has an associated Big5 lead (initially 0x00).
    var /** @type {number} */ Big5_lead = 0x00;

    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // 1. If byte is end-of-stream and Big5 lead is not 0x00, set
      // Big5 lead to 0x00 and return error.
      if (bite === end_of_stream && Big5_lead !== 0x00) {
        Big5_lead = 0x00;
        return decoderError(fatal);
      }

      // 2. If byte is end-of-stream and Big5 lead is 0x00, return
      // finished.
      if (bite === end_of_stream && Big5_lead === 0x00)
        return finished;

      // 3. If Big5 lead is not 0x00, let lead be Big5 lead, let
      // pointer be null, set Big5 lead to 0x00, and then run these
      // substeps:
      if (Big5_lead !== 0x00) {
        var lead = Big5_lead;
        var pointer = null;
        Big5_lead = 0x00;

        // 1. Let offset be 0x40 if byte is less than 0x7F and 0x62
        // otherwise.
        var offset = bite < 0x7F ? 0x40 : 0x62;

        // 2. If byte is in the range 0x40 to 0x7E, inclusive, or 0xA1
        // to 0xFE, inclusive, set pointer to (lead − 0x81) × 157 +
        // (byte − offset).
        if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0xA1, 0xFE))
          pointer = (lead - 0x81) * 157 + (bite - offset);

        // 3. If there is a row in the table below whose first column
        // is pointer, return the two code points listed in its second
        // column
        // Pointer | Code points
        // --------+--------------
        // 1133    | U+00CA U+0304
        // 1135    | U+00CA U+030C
        // 1164    | U+00EA U+0304
        // 1166    | U+00EA U+030C
        switch (pointer) {
          case 1133: return [0x00CA, 0x0304];
          case 1135: return [0x00CA, 0x030C];
          case 1164: return [0x00EA, 0x0304];
          case 1166: return [0x00EA, 0x030C];
        }

        // 4. Let code point be null if pointer is null and the index
        // code point for pointer in index Big5 otherwise.
        var code_point = (pointer === null) ? null :
            indexCodePointFor(pointer, index('big5'));

        // 5. If code point is null and byte is an ASCII byte, prepend
        // byte to stream.
        if (code_point === null && isASCIIByte(bite))
          stream.prepend(bite);

        // 6. If code point is null, return error.
        if (code_point === null)
          return decoderError(fatal);

        // 7. Return a code point whose value is code point.
        return code_point;
      }

      // 4. If byte is an ASCII byte, return a code point whose value
      // is byte.
      if (isASCIIByte(bite))
        return bite;

      // 5. If byte is in the range 0x81 to 0xFE, inclusive, set Big5
      // lead to byte and return continue.
      if (inRange(bite, 0x81, 0xFE)) {
        Big5_lead = bite;
        return null;
      }

      // 6. Return error.
      return decoderError(fatal);
    };
  }

  // 12.1.2 Big5 encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {{fatal: boolean}} options
   */
  function Big5Encoder(options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1. If code point is end-of-stream, return finished.
      if (code_point === end_of_stream)
        return finished;

      // 2. If code point is an ASCII code point, return a byte whose
      // value is code point.
      if (isASCIICodePoint(code_point))
        return code_point;

      // 3. Let pointer be the index Big5 pointer for code point.
      var pointer = indexBig5PointerFor(code_point);

      // 4. If pointer is null, return error with code point.
      if (pointer === null)
        return encoderError(code_point);

      // 5. Let lead be floor(pointer / 157) + 0x81.
      var lead = floor(pointer / 157) + 0x81;

      // 6. If lead is less than 0xA1, return error with code point.
      if (lead < 0xA1)
        return encoderError(code_point);

      // 7. Let trail be pointer % 157.
      var trail = pointer % 157;

      // 8. Let offset be 0x40 if trail is less than 0x3F and 0x62
      // otherwise.
      var offset = trail < 0x3F ? 0x40 : 0x62;

      // Return two bytes whose values are lead and trail + offset.
      return [lead, trail + offset];
    };
  }

  /** @param {{fatal: boolean}} options */
  encoders['Big5'] = function(options) {
    return new Big5Encoder(options);
  };
  /** @param {{fatal: boolean}} options */
  decoders['Big5'] = function(options) {
    return new Big5Decoder(options);
  };


  //
  // 13. Legacy multi-byte Japanese encodings
  //

  // 13.1 euc-jp

  // 13.1.1 euc-jp decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {{fatal: boolean}} options
   */
  function EUCJPDecoder(options) {
    var fatal = options.fatal;

    // euc-jp's decoder has an associated euc-jp jis0212 flag
    // (initially unset) and euc-jp lead (initially 0x00).
    var /** @type {boolean} */ eucjp_jis0212_flag = false,
        /** @type {number} */ eucjp_lead = 0x00;

    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // 1. If byte is end-of-stream and euc-jp lead is not 0x00, set
      // euc-jp lead to 0x00, and return error.
      if (bite === end_of_stream && eucjp_lead !== 0x00) {
        eucjp_lead = 0x00;
        return decoderError(fatal);
      }

      // 2. If byte is end-of-stream and euc-jp lead is 0x00, return
      // finished.
      if (bite === end_of_stream && eucjp_lead === 0x00)
        return finished;

      // 3. If euc-jp lead is 0x8E and byte is in the range 0xA1 to
      // 0xDF, inclusive, set euc-jp lead to 0x00 and return a code
      // point whose value is 0xFF61 − 0xA1 + byte.
      if (eucjp_lead === 0x8E && inRange(bite, 0xA1, 0xDF)) {
        eucjp_lead = 0x00;
        return 0xFF61 - 0xA1 + bite;
      }

      // 4. If euc-jp lead is 0x8F and byte is in the range 0xA1 to
      // 0xFE, inclusive, set the euc-jp jis0212 flag, set euc-jp lead
      // to byte, and return continue.
      if (eucjp_lead === 0x8F && inRange(bite, 0xA1, 0xFE)) {
        eucjp_jis0212_flag = true;
        eucjp_lead = bite;
        return null;
      }

      // 5. If euc-jp lead is not 0x00, let lead be euc-jp lead, set
      // euc-jp lead to 0x00, and run these substeps:
      if (eucjp_lead !== 0x00) {
        var lead = eucjp_lead;
        eucjp_lead = 0x00;

        // 1. Let code point be null.
        var code_point = null;

        // 2. If lead and byte are both in the range 0xA1 to 0xFE,
        // inclusive, set code point to the index code point for (lead
        // − 0xA1) × 94 + byte − 0xA1 in index jis0208 if the euc-jp
        // jis0212 flag is unset and in index jis0212 otherwise.
        if (inRange(lead, 0xA1, 0xFE) && inRange(bite, 0xA1, 0xFE)) {
          code_point = indexCodePointFor(
            (lead - 0xA1) * 94 + (bite - 0xA1),
            index(!eucjp_jis0212_flag ? 'jis0208' : 'jis0212'));
        }

        // 3. Unset the euc-jp jis0212 flag.
        eucjp_jis0212_flag = false;

        // 4. If byte is not in the range 0xA1 to 0xFE, inclusive,
        // prepend byte to stream.
        if (!inRange(bite, 0xA1, 0xFE))
          stream.prepend(bite);

        // 5. If code point is null, return error.
        if (code_point === null)
          return decoderError(fatal);

        // 6. Return a code point whose value is code point.
        return code_point;
      }

      // 6. If byte is an ASCII byte, return a code point whose value
      // is byte.
      if (isASCIIByte(bite))
        return bite;

      // 7. If byte is 0x8E, 0x8F, or in the range 0xA1 to 0xFE,
      // inclusive, set euc-jp lead to byte and return continue.
      if (bite === 0x8E || bite === 0x8F || inRange(bite, 0xA1, 0xFE)) {
        eucjp_lead = bite;
        return null;
      }

      // 8. Return error.
      return decoderError(fatal);
    };
  }

  // 13.1.2 euc-jp encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {{fatal: boolean}} options
   */
  function EUCJPEncoder(options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1. If code point is end-of-stream, return finished.
      if (code_point === end_of_stream)
        return finished;

      // 2. If code point is an ASCII code point, return a byte whose
      // value is code point.
      if (isASCIICodePoint(code_point))
        return code_point;

      // 3. If code point is U+00A5, return byte 0x5C.
      if (code_point === 0x00A5)
        return 0x5C;

      // 4. If code point is U+203E, return byte 0x7E.
      if (code_point === 0x203E)
        return 0x7E;

      // 5. If code point is in the range U+FF61 to U+FF9F, inclusive,
      // return two bytes whose values are 0x8E and code point −
      // 0xFF61 + 0xA1.
      if (inRange(code_point, 0xFF61, 0xFF9F))
        return [0x8E, code_point - 0xFF61 + 0xA1];

      // 6. If code point is U+2212, set it to U+FF0D.
      if (code_point === 0x2212)
        code_point = 0xFF0D;

      // 7. Let pointer be the index pointer for code point in index
      // jis0208.
      var pointer = indexPointerFor(code_point, index('jis0208'));

      // 8. If pointer is null, return error with code point.
      if (pointer === null)
        return encoderError(code_point);

      // 9. Let lead be floor(pointer / 94) + 0xA1.
      var lead = floor(pointer / 94) + 0xA1;

      // 10. Let trail be pointer % 94 + 0xA1.
      var trail = pointer % 94 + 0xA1;

      // 11. Return two bytes whose values are lead and trail.
      return [lead, trail];
    };
  }

  /** @param {{fatal: boolean}} options */
  encoders['EUC-JP'] = function(options) {
    return new EUCJPEncoder(options);
  };
  /** @param {{fatal: boolean}} options */
  decoders['EUC-JP'] = function(options) {
    return new EUCJPDecoder(options);
  };

  // 13.2 iso-2022-jp

  // 13.2.1 iso-2022-jp decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {{fatal: boolean}} options
   */
  function ISO2022JPDecoder(options) {
    var fatal = options.fatal;
    /** @enum */
    var states = {
      ASCII: 0,
      Roman: 1,
      Katakana: 2,
      LeadByte: 3,
      TrailByte: 4,
      EscapeStart: 5,
      Escape: 6
    };
    // iso-2022-jp's decoder has an associated iso-2022-jp decoder
    // state (initially ASCII), iso-2022-jp decoder output state
    // (initially ASCII), iso-2022-jp lead (initially 0x00), and
    // iso-2022-jp output flag (initially unset).
    var /** @type {number} */ iso2022jp_decoder_state = states.ASCII,
        /** @type {number} */ iso2022jp_decoder_output_state = states.ASCII,
        /** @type {number} */ iso2022jp_lead = 0x00,
        /** @type {boolean} */ iso2022jp_output_flag = false;
    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // switching on iso-2022-jp decoder state:
      switch (iso2022jp_decoder_state) {
      default:
      case states.ASCII:
        // ASCII
        // Based on byte:

        // 0x1B
        if (bite === 0x1B) {
          // Set iso-2022-jp decoder state to escape start and return
          // continue.
          iso2022jp_decoder_state = states.EscapeStart;
          return null;
        }

        // 0x00 to 0x7F, excluding 0x0E, 0x0F, and 0x1B
        if (inRange(bite, 0x00, 0x7F) && bite !== 0x0E
            && bite !== 0x0F && bite !== 0x1B) {
          // Unset the iso-2022-jp output flag and return a code point
          // whose value is byte.
          iso2022jp_output_flag = false;
          return bite;
        }

        // end-of-stream
        if (bite === end_of_stream) {
          // Return finished.
          return finished;
        }

        // Otherwise
        // Unset the iso-2022-jp output flag and return error.
        iso2022jp_output_flag = false;
        return decoderError(fatal);

      case states.Roman:
        // Roman
        // Based on byte:

        // 0x1B
        if (bite === 0x1B) {
          // Set iso-2022-jp decoder state to escape start and return
          // continue.
          iso2022jp_decoder_state = states.EscapeStart;
          return null;
        }

        // 0x5C
        if (bite === 0x5C) {
          // Unset the iso-2022-jp output flag and return code point
          // U+00A5.
          iso2022jp_output_flag = false;
          return 0x00A5;
        }

        // 0x7E
        if (bite === 0x7E) {
          // Unset the iso-2022-jp output flag and return code point
          // U+203E.
          iso2022jp_output_flag = false;
          return 0x203E;
        }

        // 0x00 to 0x7F, excluding 0x0E, 0x0F, 0x1B, 0x5C, and 0x7E
        if (inRange(bite, 0x00, 0x7F) && bite !== 0x0E && bite !== 0x0F
            && bite !== 0x1B && bite !== 0x5C && bite !== 0x7E) {
          // Unset the iso-2022-jp output flag and return a code point
          // whose value is byte.
          iso2022jp_output_flag = false;
          return bite;
        }

        // end-of-stream
        if (bite === end_of_stream) {
          // Return finished.
          return finished;
        }

        // Otherwise
        // Unset the iso-2022-jp output flag and return error.
        iso2022jp_output_flag = false;
        return decoderError(fatal);

      case states.Katakana:
        // Katakana
        // Based on byte:

        // 0x1B
        if (bite === 0x1B) {
          // Set iso-2022-jp decoder state to escape start and return
          // continue.
          iso2022jp_decoder_state = states.EscapeStart;
          return null;
        }

        // 0x21 to 0x5F
        if (inRange(bite, 0x21, 0x5F)) {
          // Unset the iso-2022-jp output flag and return a code point
          // whose value is 0xFF61 − 0x21 + byte.
          iso2022jp_output_flag = false;
          return 0xFF61 - 0x21 + bite;
        }

        // end-of-stream
        if (bite === end_of_stream) {
          // Return finished.
          return finished;
        }

        // Otherwise
        // Unset the iso-2022-jp output flag and return error.
        iso2022jp_output_flag = false;
        return decoderError(fatal);

      case states.LeadByte:
        // Lead byte
        // Based on byte:

        // 0x1B
        if (bite === 0x1B) {
          // Set iso-2022-jp decoder state to escape start and return
          // continue.
          iso2022jp_decoder_state = states.EscapeStart;
          return null;
        }

        // 0x21 to 0x7E
        if (inRange(bite, 0x21, 0x7E)) {
          // Unset the iso-2022-jp output flag, set iso-2022-jp lead
          // to byte, iso-2022-jp decoder state to trail byte, and
          // return continue.
          iso2022jp_output_flag = false;
          iso2022jp_lead = bite;
          iso2022jp_decoder_state = states.TrailByte;
          return null;
        }

        // end-of-stream
        if (bite === end_of_stream) {
          // Return finished.
          return finished;
        }

        // Otherwise
        // Unset the iso-2022-jp output flag and return error.
        iso2022jp_output_flag = false;
        return decoderError(fatal);

      case states.TrailByte:
        // Trail byte
        // Based on byte:

        // 0x1B
        if (bite === 0x1B) {
          // Set iso-2022-jp decoder state to escape start and return
          // continue.
          iso2022jp_decoder_state = states.EscapeStart;
          return decoderError(fatal);
        }

        // 0x21 to 0x7E
        if (inRange(bite, 0x21, 0x7E)) {
          // 1. Set the iso-2022-jp decoder state to lead byte.
          iso2022jp_decoder_state = states.LeadByte;

          // 2. Let pointer be (iso-2022-jp lead − 0x21) × 94 + byte − 0x21.
          var pointer = (iso2022jp_lead - 0x21) * 94 + bite - 0x21;

          // 3. Let code point be the index code point for pointer in
          // index jis0208.
          var code_point = indexCodePointFor(pointer, index('jis0208'));

          // 4. If code point is null, return error.
          if (code_point === null)
            return decoderError(fatal);

          // 5. Return a code point whose value is code point.
          return code_point;
        }

        // end-of-stream
        if (bite === end_of_stream) {
          // Set the iso-2022-jp decoder state to lead byte, prepend
          // byte to stream, and return error.
          iso2022jp_decoder_state = states.LeadByte;
          stream.prepend(bite);
          return decoderError(fatal);
        }

        // Otherwise
        // Set iso-2022-jp decoder state to lead byte and return
        // error.
        iso2022jp_decoder_state = states.LeadByte;
        return decoderError(fatal);

      case states.EscapeStart:
        // Escape start

        // 1. If byte is either 0x24 or 0x28, set iso-2022-jp lead to
        // byte, iso-2022-jp decoder state to escape, and return
        // continue.
        if (bite === 0x24 || bite === 0x28) {
          iso2022jp_lead = bite;
          iso2022jp_decoder_state = states.Escape;
          return null;
        }

        // 2. Prepend byte to stream.
        stream.prepend(bite);

        // 3. Unset the iso-2022-jp output flag, set iso-2022-jp
        // decoder state to iso-2022-jp decoder output state, and
        // return error.
        iso2022jp_output_flag = false;
        iso2022jp_decoder_state = iso2022jp_decoder_output_state;
        return decoderError(fatal);

      case states.Escape:
        // Escape

        // 1. Let lead be iso-2022-jp lead and set iso-2022-jp lead to
        // 0x00.
        var lead = iso2022jp_lead;
        iso2022jp_lead = 0x00;

        // 2. Let state be null.
        var state = null;

        // 3. If lead is 0x28 and byte is 0x42, set state to ASCII.
        if (lead === 0x28 && bite === 0x42)
          state = states.ASCII;

        // 4. If lead is 0x28 and byte is 0x4A, set state to Roman.
        if (lead === 0x28 && bite === 0x4A)
          state = states.Roman;

        // 5. If lead is 0x28 and byte is 0x49, set state to Katakana.
        if (lead === 0x28 && bite === 0x49)
          state = states.Katakana;

        // 6. If lead is 0x24 and byte is either 0x40 or 0x42, set
        // state to lead byte.
        if (lead === 0x24 && (bite === 0x40 || bite === 0x42))
          state = states.LeadByte;

        // 7. If state is non-null, run these substeps:
        if (state !== null) {
          // 1. Set iso-2022-jp decoder state and iso-2022-jp decoder
          // output state to states.
          iso2022jp_decoder_state = iso2022jp_decoder_state = state;

          // 2. Let output flag be the iso-2022-jp output flag.
          var output_flag = iso2022jp_output_flag;

          // 3. Set the iso-2022-jp output flag.
          iso2022jp_output_flag = true;

          // 4. Return continue, if output flag is unset, and error
          // otherwise.
          return !output_flag ? null : decoderError(fatal);
        }

        // 8. Prepend lead and byte to stream.
        stream.prepend([lead, bite]);

        // 9. Unset the iso-2022-jp output flag, set iso-2022-jp
        // decoder state to iso-2022-jp decoder output state and
        // return error.
        iso2022jp_output_flag = false;
        iso2022jp_decoder_state = iso2022jp_decoder_output_state;
        return decoderError(fatal);
      }
    };
  }

  // 13.2.2 iso-2022-jp encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {{fatal: boolean}} options
   */
  function ISO2022JPEncoder(options) {
    var fatal = options.fatal;
    // iso-2022-jp's encoder has an associated iso-2022-jp encoder
    // state which is one of ASCII, Roman, and jis0208 (initially
    // ASCII).
    /** @enum */
    var states = {
      ASCII: 0,
      Roman: 1,
      jis0208: 2
    };
    var /** @type {number} */ iso2022jp_state = states.ASCII;
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1. If code point is end-of-stream and iso-2022-jp encoder
      // state is not ASCII, prepend code point to stream, set
      // iso-2022-jp encoder state to ASCII, and return three bytes
      // 0x1B 0x28 0x42.
      if (code_point === end_of_stream &&
          iso2022jp_state !== states.ASCII) {
        stream.prepend(code_point);
        iso2022jp_state = states.ASCII;
        return [0x1B, 0x28, 0x42];
      }

      // 2. If code point is end-of-stream and iso-2022-jp encoder
      // state is ASCII, return finished.
      if (code_point === end_of_stream && iso2022jp_state === states.ASCII)
        return finished;

      // 3. If ISO-2022-JP encoder state is ASCII or Roman, and code
      // point is U+000E, U+000F, or U+001B, return error with U+FFFD.
      if ((iso2022jp_state === states.ASCII ||
           iso2022jp_state === states.Roman) &&
          (code_point === 0x000E || code_point === 0x000F ||
           code_point === 0x001B)) {
        return encoderError(0xFFFD);
      }

      // 4. If iso-2022-jp encoder state is ASCII and code point is an
      // ASCII code point, return a byte whose value is code point.
      if (iso2022jp_state === states.ASCII &&
          isASCIICodePoint(code_point))
        return code_point;

      // 5. If iso-2022-jp encoder state is Roman and code point is an
      // ASCII code point, excluding U+005C and U+007E, or is U+00A5
      // or U+203E, run these substeps:
      if (iso2022jp_state === states.Roman &&
          ((isASCIICodePoint(code_point) &&
           code_point !== 0x005C && code_point !== 0x007E) ||
          (code_point == 0x00A5 || code_point == 0x203E))) {

        // 1. If code point is an ASCII code point, return a byte
        // whose value is code point.
        if (isASCIICodePoint(code_point))
          return code_point;

        // 2. If code point is U+00A5, return byte 0x5C.
        if (code_point === 0x00A5)
          return 0x5C;

        // 3. If code point is U+203E, return byte 0x7E.
        if (code_point === 0x203E)
          return 0x7E;
      }

      // 6. If code point is an ASCII code point, and iso-2022-jp
      // encoder state is not ASCII, prepend code point to stream, set
      // iso-2022-jp encoder state to ASCII, and return three bytes
      // 0x1B 0x28 0x42.
      if (isASCIICodePoint(code_point) &&
          iso2022jp_state !== states.ASCII) {
        stream.prepend(code_point);
        iso2022jp_state = states.ASCII;
        return [0x1B, 0x28, 0x42];
      }

      // 7. If code point is either U+00A5 or U+203E, and iso-2022-jp
      // encoder state is not Roman, prepend code point to stream, set
      // iso-2022-jp encoder state to Roman, and return three bytes
      // 0x1B 0x28 0x4A.
      if ((code_point === 0x00A5 || code_point === 0x203E) &&
          iso2022jp_state !== states.Roman) {
        stream.prepend(code_point);
        iso2022jp_state = states.Roman;
        return [0x1B, 0x28, 0x4A];
      }

      // 8. If code point is U+2212, set it to U+FF0D.
      if (code_point === 0x2212)
        code_point = 0xFF0D;

      // 9. Let pointer be the index pointer for code point in index
      // jis0208.
      var pointer = indexPointerFor(code_point, index('jis0208'));

      // 10. If pointer is null, return error with code point.
      if (pointer === null)
        return encoderError(code_point);

      // 11. If iso-2022-jp encoder state is not jis0208, prepend code
      // point to stream, set iso-2022-jp encoder state to jis0208,
      // and return three bytes 0x1B 0x24 0x42.
      if (iso2022jp_state !== states.jis0208) {
        stream.prepend(code_point);
        iso2022jp_state = states.jis0208;
        return [0x1B, 0x24, 0x42];
      }

      // 12. Let lead be floor(pointer / 94) + 0x21.
      var lead = floor(pointer / 94) + 0x21;

      // 13. Let trail be pointer % 94 + 0x21.
      var trail = pointer % 94 + 0x21;

      // 14. Return two bytes whose values are lead and trail.
      return [lead, trail];
    };
  }

  /** @param {{fatal: boolean}} options */
  encoders['ISO-2022-JP'] = function(options) {
    return new ISO2022JPEncoder(options);
  };
  /** @param {{fatal: boolean}} options */
  decoders['ISO-2022-JP'] = function(options) {
    return new ISO2022JPDecoder(options);
  };

  // 13.3 Shift_JIS

  // 13.3.1 Shift_JIS decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {{fatal: boolean}} options
   */
  function ShiftJISDecoder(options) {
    var fatal = options.fatal;
    // Shift_JIS's decoder has an associated Shift_JIS lead (initially
    // 0x00).
    var /** @type {number} */ Shift_JIS_lead = 0x00;
    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // 1. If byte is end-of-stream and Shift_JIS lead is not 0x00,
      // set Shift_JIS lead to 0x00 and return error.
      if (bite === end_of_stream && Shift_JIS_lead !== 0x00) {
        Shift_JIS_lead = 0x00;
        return decoderError(fatal);
      }

      // 2. If byte is end-of-stream and Shift_JIS lead is 0x00,
      // return finished.
      if (bite === end_of_stream && Shift_JIS_lead === 0x00)
        return finished;

      // 3. If Shift_JIS lead is not 0x00, let lead be Shift_JIS lead,
      // let pointer be null, set Shift_JIS lead to 0x00, and then run
      // these substeps:
      if (Shift_JIS_lead !== 0x00) {
        var lead = Shift_JIS_lead;
        var pointer = null;
        Shift_JIS_lead = 0x00;

        // 1. Let offset be 0x40, if byte is less than 0x7F, and 0x41
        // otherwise.
        var offset = (bite < 0x7F) ? 0x40 : 0x41;

        // 2. Let lead offset be 0x81, if lead is less than 0xA0, and
        // 0xC1 otherwise.
        var lead_offset = (lead < 0xA0) ? 0x81 : 0xC1;

        // 3. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80
        // to 0xFC, inclusive, set pointer to (lead − lead offset) ×
        // 188 + byte − offset.
        if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFC))
          pointer = (lead - lead_offset) * 188 + bite - offset;

        // 4. If pointer is in the range 8836 to 10715, inclusive,
        // return a code point whose value is 0xE000 − 8836 + pointer.
        if (inRange(pointer, 8836, 10715))
          return 0xE000 - 8836 + pointer;

        // 5. Let code point be null, if pointer is null, and the
        // index code point for pointer in index jis0208 otherwise.
        var code_point = (pointer === null) ? null :
              indexCodePointFor(pointer, index('jis0208'));

        // 6. If code point is null and byte is an ASCII byte, prepend
        // byte to stream.
        if (code_point === null && isASCIIByte(bite))
          stream.prepend(bite);

        // 7. If code point is null, return error.
        if (code_point === null)
          return decoderError(fatal);

        // 8. Return a code point whose value is code point.
        return code_point;
      }

      // 4. If byte is an ASCII byte or 0x80, return a code point
      // whose value is byte.
      if (isASCIIByte(bite) || bite === 0x80)
        return bite;

      // 5. If byte is in the range 0xA1 to 0xDF, inclusive, return a
      // code point whose value is 0xFF61 − 0xA1 + byte.
      if (inRange(bite, 0xA1, 0xDF))
        return 0xFF61 - 0xA1 + bite;

      // 6. If byte is in the range 0x81 to 0x9F, inclusive, or 0xE0
      // to 0xFC, inclusive, set Shift_JIS lead to byte and return
      // continue.
      if (inRange(bite, 0x81, 0x9F) || inRange(bite, 0xE0, 0xFC)) {
        Shift_JIS_lead = bite;
        return null;
      }

      // 7. Return error.
      return decoderError(fatal);
    };
  }

  // 13.3.2 Shift_JIS encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {{fatal: boolean}} options
   */
  function ShiftJISEncoder(options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1. If code point is end-of-stream, return finished.
      if (code_point === end_of_stream)
        return finished;

      // 2. If code point is an ASCII code point or U+0080, return a
      // byte whose value is code point.
      if (isASCIICodePoint(code_point) || code_point === 0x0080)
        return code_point;

      // 3. If code point is U+00A5, return byte 0x5C.
      if (code_point === 0x00A5)
        return 0x5C;

      // 4. If code point is U+203E, return byte 0x7E.
      if (code_point === 0x203E)
        return 0x7E;

      // 5. If code point is in the range U+FF61 to U+FF9F, inclusive,
      // return a byte whose value is code point − 0xFF61 + 0xA1.
      if (inRange(code_point, 0xFF61, 0xFF9F))
        return code_point - 0xFF61 + 0xA1;

      // 6. If code point is U+2212, set it to U+FF0D.
      if (code_point === 0x2212)
        code_point = 0xFF0D;

      // 7. Let pointer be the index Shift_JIS pointer for code point.
      var pointer = indexShiftJISPointerFor(code_point);

      // 8. If pointer is null, return error with code point.
      if (pointer === null)
        return encoderError(code_point);

      // 9. Let lead be floor(pointer / 188).
      var lead = floor(pointer / 188);

      // 10. Let lead offset be 0x81, if lead is less than 0x1F, and
      // 0xC1 otherwise.
      var lead_offset = (lead < 0x1F) ? 0x81 : 0xC1;

      // 11. Let trail be pointer % 188.
      var trail = pointer % 188;

      // 12. Let offset be 0x40, if trail is less than 0x3F, and 0x41
      // otherwise.
      var offset = (trail < 0x3F) ? 0x40 : 0x41;

      // 13. Return two bytes whose values are lead + lead offset and
      // trail + offset.
      return [lead + lead_offset, trail + offset];
    };
  }

  /** @param {{fatal: boolean}} options */
  encoders['Shift_JIS'] = function(options) {
    return new ShiftJISEncoder(options);
  };
  /** @param {{fatal: boolean}} options */
  decoders['Shift_JIS'] = function(options) {
    return new ShiftJISDecoder(options);
  };

  //
  // 14. Legacy multi-byte Korean encodings
  //

  // 14.1 euc-kr

  // 14.1.1 euc-kr decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {{fatal: boolean}} options
   */
  function EUCKRDecoder(options) {
    var fatal = options.fatal;

    // euc-kr's decoder has an associated euc-kr lead (initially 0x00).
    var /** @type {number} */ euckr_lead = 0x00;
    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // 1. If byte is end-of-stream and euc-kr lead is not 0x00, set
      // euc-kr lead to 0x00 and return error.
      if (bite === end_of_stream && euckr_lead !== 0) {
        euckr_lead = 0x00;
        return decoderError(fatal);
      }

      // 2. If byte is end-of-stream and euc-kr lead is 0x00, return
      // finished.
      if (bite === end_of_stream && euckr_lead === 0)
        return finished;

      // 3. If euc-kr lead is not 0x00, let lead be euc-kr lead, let
      // pointer be null, set euc-kr lead to 0x00, and then run these
      // substeps:
      if (euckr_lead !== 0x00) {
        var lead = euckr_lead;
        var pointer = null;
        euckr_lead = 0x00;

        // 1. If byte is in the range 0x41 to 0xFE, inclusive, set
        // pointer to (lead − 0x81) × 190 + (byte − 0x41).
        if (inRange(bite, 0x41, 0xFE))
          pointer = (lead - 0x81) * 190 + (bite - 0x41);

        // 2. Let code point be null, if pointer is null, and the
        // index code point for pointer in index euc-kr otherwise.
        var code_point = (pointer === null)
              ? null : indexCodePointFor(pointer, index('euc-kr'));

        // 3. If code point is null and byte is an ASCII byte, prepend
        // byte to stream.
        if (pointer === null && isASCIIByte(bite))
          stream.prepend(bite);

        // 4. If code point is null, return error.
        if (code_point === null)
          return decoderError(fatal);

        // 5. Return a code point whose value is code point.
        return code_point;
      }

      // 4. If byte is an ASCII byte, return a code point whose value
      // is byte.
      if (isASCIIByte(bite))
        return bite;

      // 5. If byte is in the range 0x81 to 0xFE, inclusive, set
      // euc-kr lead to byte and return continue.
      if (inRange(bite, 0x81, 0xFE)) {
        euckr_lead = bite;
        return null;
      }

      // 6. Return error.
      return decoderError(fatal);
    };
  }

  // 14.1.2 euc-kr encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {{fatal: boolean}} options
   */
  function EUCKREncoder(options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1. If code point is end-of-stream, return finished.
      if (code_point === end_of_stream)
        return finished;

      // 2. If code point is an ASCII code point, return a byte whose
      // value is code point.
      if (isASCIICodePoint(code_point))
        return code_point;

      // 3. Let pointer be the index pointer for code point in index
      // euc-kr.
      var pointer = indexPointerFor(code_point, index('euc-kr'));

      // 4. If pointer is null, return error with code point.
      if (pointer === null)
        return encoderError(code_point);

      // 5. Let lead be floor(pointer / 190) + 0x81.
      var lead = floor(pointer / 190) + 0x81;

      // 6. Let trail be pointer % 190 + 0x41.
      var trail = (pointer % 190) + 0x41;

      // 7. Return two bytes whose values are lead and trail.
      return [lead, trail];
    };
  }

  /** @param {{fatal: boolean}} options */
  encoders['EUC-KR'] = function(options) {
    return new EUCKREncoder(options);
  };
  /** @param {{fatal: boolean}} options */
  decoders['EUC-KR'] = function(options) {
    return new EUCKRDecoder(options);
  };


  //
  // 15. Legacy miscellaneous encodings
  //

  // 15.1 replacement

  // Not needed - API throws RangeError

  // 15.2 Common infrastructure for utf-16be and utf-16le

  /**
   * @param {number} code_unit
   * @param {boolean} utf16be
   * @return {!Array.<number>} bytes
   */
  function convertCodeUnitToBytes(code_unit, utf16be) {
    // 1. Let byte1 be code unit >> 8.
    var byte1 = code_unit >> 8;

    // 2. Let byte2 be code unit & 0x00FF.
    var byte2 = code_unit & 0x00FF;

    // 3. Then return the bytes in order:
        // utf-16be flag is set: byte1, then byte2.
    if (utf16be)
      return [byte1, byte2];
    // utf-16be flag is unset: byte2, then byte1.
    return [byte2, byte1];
  }

  // 15.2.1 shared utf-16 decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {boolean} utf16_be True if big-endian, false if little-endian.
   * @param {{fatal: boolean}} options
   */
  function UTF16Decoder(utf16_be, options) {
    var fatal = options.fatal;
    var /** @type {?number} */ utf16_lead_byte = null,
        /** @type {?number} */ utf16_lead_surrogate = null;
    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // 1. If byte is end-of-stream and either utf-16 lead byte or
      // utf-16 lead surrogate is not null, set utf-16 lead byte and
      // utf-16 lead surrogate to null, and return error.
      if (bite === end_of_stream && (utf16_lead_byte !== null ||
                                utf16_lead_surrogate !== null)) {
        return decoderError(fatal);
      }

      // 2. If byte is end-of-stream and utf-16 lead byte and utf-16
      // lead surrogate are null, return finished.
      if (bite === end_of_stream && utf16_lead_byte === null &&
          utf16_lead_surrogate === null) {
        return finished;
      }

      // 3. If utf-16 lead byte is null, set utf-16 lead byte to byte
      // and return continue.
      if (utf16_lead_byte === null) {
        utf16_lead_byte = bite;
        return null;
      }

      // 4. Let code unit be the result of:
      var code_unit;
      if (utf16_be) {
        // utf-16be decoder flag is set
        //   (utf-16 lead byte << 8) + byte.
        code_unit = (utf16_lead_byte << 8) + bite;
      } else {
        // utf-16be decoder flag is unset
        //   (byte << 8) + utf-16 lead byte.
        code_unit = (bite << 8) + utf16_lead_byte;
      }
      // Then set utf-16 lead byte to null.
      utf16_lead_byte = null;

      // 5. If utf-16 lead surrogate is not null, let lead surrogate
      // be utf-16 lead surrogate, set utf-16 lead surrogate to null,
      // and then run these substeps:
      if (utf16_lead_surrogate !== null) {
        var lead_surrogate = utf16_lead_surrogate;
        utf16_lead_surrogate = null;

        // 1. If code unit is in the range U+DC00 to U+DFFF,
        // inclusive, return a code point whose value is 0x10000 +
        // ((lead surrogate − 0xD800) << 10) + (code unit − 0xDC00).
        if (inRange(code_unit, 0xDC00, 0xDFFF)) {
          return 0x10000 + (lead_surrogate - 0xD800) * 0x400 +
              (code_unit - 0xDC00);
        }

        // 2. Prepend the sequence resulting of converting code unit
        // to bytes using utf-16be decoder flag to stream and return
        // error.
        stream.prepend(convertCodeUnitToBytes(code_unit, utf16_be));
        return decoderError(fatal);
      }

      // 6. If code unit is in the range U+D800 to U+DBFF, inclusive,
      // set utf-16 lead surrogate to code unit and return continue.
      if (inRange(code_unit, 0xD800, 0xDBFF)) {
        utf16_lead_surrogate = code_unit;
        return null;
      }

      // 7. If code unit is in the range U+DC00 to U+DFFF, inclusive,
      // return error.
      if (inRange(code_unit, 0xDC00, 0xDFFF))
        return decoderError(fatal);

      // 8. Return code point code unit.
      return code_unit;
    };
  }

  // 15.2.2 shared utf-16 encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {boolean} utf16_be True if big-endian, false if little-endian.
   * @param {{fatal: boolean}} options
   */
  function UTF16Encoder(utf16_be, options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1. If code point is end-of-stream, return finished.
      if (code_point === end_of_stream)
        return finished;

      // 2. If code point is in the range U+0000 to U+FFFF, inclusive,
      // return the sequence resulting of converting code point to
      // bytes using utf-16be encoder flag.
      if (inRange(code_point, 0x0000, 0xFFFF))
        return convertCodeUnitToBytes(code_point, utf16_be);

      // 3. Let lead be ((code point − 0x10000) >> 10) + 0xD800,
      // converted to bytes using utf-16be encoder flag.
      var lead = convertCodeUnitToBytes(
        ((code_point - 0x10000) >> 10) + 0xD800, utf16_be);

      // 4. Let trail be ((code point − 0x10000) & 0x3FF) + 0xDC00,
      // converted to bytes using utf-16be encoder flag.
      var trail = convertCodeUnitToBytes(
        ((code_point - 0x10000) & 0x3FF) + 0xDC00, utf16_be);

      // 5. Return a byte sequence of lead followed by trail.
      return lead.concat(trail);
    };
  }

  // 15.3 utf-16be
  // 15.3.1 utf-16be decoder
  /** @param {{fatal: boolean}} options */
  encoders['UTF-16BE'] = function(options) {
    return new UTF16Encoder(true, options);
  };
  // 15.3.2 utf-16be encoder
  /** @param {{fatal: boolean}} options */
  decoders['UTF-16BE'] = function(options) {
    return new UTF16Decoder(true, options);
  };

  // 15.4 utf-16le
  // 15.4.1 utf-16le decoder
  /** @param {{fatal: boolean}} options */
  encoders['UTF-16LE'] = function(options) {
    return new UTF16Encoder(false, options);
  };
  // 15.4.2 utf-16le encoder
  /** @param {{fatal: boolean}} options */
  decoders['UTF-16LE'] = function(options) {
    return new UTF16Decoder(false, options);
  };

  // 15.5 x-user-defined

  // 15.5.1 x-user-defined decoder
  /**
   * @constructor
   * @implements {Decoder}
   * @param {{fatal: boolean}} options
   */
  function XUserDefinedDecoder(options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream The stream of bytes being decoded.
     * @param {number} bite The next byte read from the stream.
     * @return {?(number|!Array.<number>)} The next code point(s)
     *     decoded, or null if not enough data exists in the input
     *     stream to decode a complete code point.
     */
    this.handler = function(stream, bite) {
      // 1. If byte is end-of-stream, return finished.
      if (bite === end_of_stream)
        return finished;

      // 2. If byte is an ASCII byte, return a code point whose value
      // is byte.
      if (isASCIIByte(bite))
        return bite;

      // 3. Return a code point whose value is 0xF780 + byte − 0x80.
      return 0xF780 + bite - 0x80;
    };
  }

  // 15.5.2 x-user-defined encoder
  /**
   * @constructor
   * @implements {Encoder}
   * @param {{fatal: boolean}} options
   */
  function XUserDefinedEncoder(options) {
    var fatal = options.fatal;
    /**
     * @param {Stream} stream Input stream.
     * @param {number} code_point Next code point read from the stream.
     * @return {(number|!Array.<number>)} Byte(s) to emit.
     */
    this.handler = function(stream, code_point) {
      // 1.If code point is end-of-stream, return finished.
      if (code_point === end_of_stream)
        return finished;

      // 2. If code point is an ASCII code point, return a byte whose
      // value is code point.
      if (isASCIICodePoint(code_point))
        return code_point;

      // 3. If code point is in the range U+F780 to U+F7FF, inclusive,
      // return a byte whose value is code point − 0xF780 + 0x80.
      if (inRange(code_point, 0xF780, 0xF7FF))
        return code_point - 0xF780 + 0x80;

      // 4. Return error with code point.
      return encoderError(code_point);
    };
  }

  /** @param {{fatal: boolean}} options */
  encoders['x-user-defined'] = function(options) {
    return new XUserDefinedEncoder(options);
  };
  /** @param {{fatal: boolean}} options */
  decoders['x-user-defined'] = function(options) {
    return new XUserDefinedDecoder(options);
  };

  if (!global['TextEncoder'])
    global['TextEncoder'] = TextEncoder;
  if (!global['TextDecoder'])
    global['TextDecoder'] = TextDecoder;

  if ( true && module.exports) {
    module.exports = {
      TextEncoder: global['TextEncoder'],
      TextDecoder: global['TextDecoder'],
      EncodingIndexes: global["encoding-indexes"]
    };
  }

// For strict environments where `this` inside the global scope
// is `undefined`, take a pure object instead
}(this || {}));


/***/ }),

/***/ "./node_modules/text-encoding-utf-8/lib/encoding.lib.js":
/*!**************************************************************!*\
  !*** ./node_modules/text-encoding-utf-8/lib/encoding.lib.js ***!
  \**************************************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";


// This is free and unencumbered software released into the public domain.
// See LICENSE.md for more information.

//
// Utilities
//

/**
 * @param {number} a The number to test.
 * @param {number} min The minimum value in the range, inclusive.
 * @param {number} max The maximum value in the range, inclusive.
 * @return {boolean} True if a >= min and a <= max.
 */
function inRange(a, min, max) {
  return min <= a && a <= max;
}

/**
 * @param {*} o
 * @return {Object}
 */
function ToDictionary(o) {
  if (o === undefined) return {};
  if (o === Object(o)) return o;
  throw TypeError('Could not convert argument to dictionary');
}

/**
 * @param {string} string Input string of UTF-16 code units.
 * @return {!Array.<number>} Code points.
 */
function stringToCodePoints(string) {
  // https://heycam.github.io/webidl/#dfn-obtain-unicode

  // 1. Let S be the DOMString value.
  var s = String(string);

  // 2. Let n be the length of S.
  var n = s.length;

  // 3. Initialize i to 0.
  var i = 0;

  // 4. Initialize U to be an empty sequence of Unicode characters.
  var u = [];

  // 5. While i < n:
  while (i < n) {

    // 1. Let c be the code unit in S at index i.
    var c = s.charCodeAt(i);

    // 2. Depending on the value of c:

    // c < 0xD800 or c > 0xDFFF
    if (c < 0xD800 || c > 0xDFFF) {
      // Append to U the Unicode character with code point c.
      u.push(c);
    }

    // 0xDC00 ≤ c ≤ 0xDFFF
    else if (0xDC00 <= c && c <= 0xDFFF) {
      // Append to U a U+FFFD REPLACEMENT CHARACTER.
      u.push(0xFFFD);
    }

    // 0xD800 ≤ c ≤ 0xDBFF
    else if (0xD800 <= c && c <= 0xDBFF) {
      // 1. If i = n−1, then append to U a U+FFFD REPLACEMENT
      // CHARACTER.
      if (i === n - 1) {
        u.push(0xFFFD);
      }
      // 2. Otherwise, i < n−1:
      else {
        // 1. Let d be the code unit in S at index i+1.
        var d = string.charCodeAt(i + 1);

        // 2. If 0xDC00 ≤ d ≤ 0xDFFF, then:
        if (0xDC00 <= d && d <= 0xDFFF) {
          // 1. Let a be c & 0x3FF.
          var a = c & 0x3FF;

          // 2. Let b be d & 0x3FF.
          var b = d & 0x3FF;

          // 3. Append to U the Unicode character with code point
          // 2^16+2^10*a+b.
          u.push(0x10000 + (a << 10) + b);

          // 4. Set i to i+1.
          i += 1;
        }

        // 3. Otherwise, d < 0xDC00 or d > 0xDFFF. Append to U a
        // U+FFFD REPLACEMENT CHARACTER.
        else  {
          u.push(0xFFFD);
        }
      }
    }

    // 3. Set i to i+1.
    i += 1;
  }

  // 6. Return U.
  return u;
}

/**
 * @param {!Array.<number>} code_points Array of code points.
 * @return {string} string String of UTF-16 code units.
 */
function codePointsToString(code_points) {
  var s = '';
  for (var i = 0; i < code_points.length; ++i) {
    var cp = code_points[i];
    if (cp <= 0xFFFF) {
      s += String.fromCharCode(cp);
    } else {
      cp -= 0x10000;
      s += String.fromCharCode((cp >> 10) + 0xD800,
                               (cp & 0x3FF) + 0xDC00);
    }
  }
  return s;
}


//
// Implementation of Encoding specification
// https://encoding.spec.whatwg.org/
//

//
// 3. Terminology
//

/**
 * End-of-stream is a special token that signifies no more tokens
 * are in the stream.
 * @const
 */ var end_of_stream = -1;

/**
 * A stream represents an ordered sequence of tokens.
 *
 * @constructor
 * @param {!(Array.<number>|Uint8Array)} tokens Array of tokens that provide the
 * stream.
 */
function Stream(tokens) {
  /** @type {!Array.<number>} */
  this.tokens = [].slice.call(tokens);
}

Stream.prototype = {
  /**
   * @return {boolean} True if end-of-stream has been hit.
   */
  endOfStream: function() {
    return !this.tokens.length;
  },

  /**
   * When a token is read from a stream, the first token in the
   * stream must be returned and subsequently removed, and
   * end-of-stream must be returned otherwise.
   *
   * @return {number} Get the next token from the stream, or
   * end_of_stream.
   */
   read: function() {
    if (!this.tokens.length)
      return end_of_stream;
     return this.tokens.shift();
   },

  /**
   * When one or more tokens are prepended to a stream, those tokens
   * must be inserted, in given order, before the first token in the
   * stream.
   *
   * @param {(number|!Array.<number>)} token The token(s) to prepend to the stream.
   */
  prepend: function(token) {
    if (Array.isArray(token)) {
      var tokens = /**@type {!Array.<number>}*/(token);
      while (tokens.length)
        this.tokens.unshift(tokens.pop());
    } else {
      this.tokens.unshift(token);
    }
  },

  /**
   * When one or more tokens are pushed to a stream, those tokens
   * must be inserted, in given order, after the last token in the
   * stream.
   *
   * @param {(number|!Array.<number>)} token The tokens(s) to prepend to the stream.
   */
  push: function(token) {
    if (Array.isArray(token)) {
      var tokens = /**@type {!Array.<number>}*/(token);
      while (tokens.length)
        this.tokens.push(tokens.shift());
    } else {
      this.tokens.push(token);
    }
  }
};

//
// 4. Encodings
//

// 4.1 Encoders and decoders

/** @const */
var finished = -1;

/**
 * @param {boolean} fatal If true, decoding errors raise an exception.
 * @param {number=} opt_code_point Override the standard fallback code point.
 * @return {number} The code point to insert on a decoding error.
 */
function decoderError(fatal, opt_code_point) {
  if (fatal)
    throw TypeError('Decoder error');
  return opt_code_point || 0xFFFD;
}

//
// 7. API
//

/** @const */ var DEFAULT_ENCODING = 'utf-8';

// 7.1 Interface TextDecoder

/**
 * @constructor
 * @param {string=} encoding The label of the encoding;
 *     defaults to 'utf-8'.
 * @param {Object=} options
 */
function TextDecoder(encoding, options) {
  if (!(this instanceof TextDecoder)) {
    return new TextDecoder(encoding, options);
  }
  encoding = encoding !== undefined ? String(encoding).toLowerCase() : DEFAULT_ENCODING;
  if (encoding !== DEFAULT_ENCODING) {
    throw new Error('Encoding not supported. Only utf-8 is supported');
  }
  options = ToDictionary(options);

  /** @private @type {boolean} */
  this._streaming = false;
  /** @private @type {boolean} */
  this._BOMseen = false;
  /** @private @type {?Decoder} */
  this._decoder = null;
  /** @private @type {boolean} */
  this._fatal = Boolean(options['fatal']);
  /** @private @type {boolean} */
  this._ignoreBOM = Boolean(options['ignoreBOM']);

  Object.defineProperty(this, 'encoding', {value: 'utf-8'});
  Object.defineProperty(this, 'fatal', {value: this._fatal});
  Object.defineProperty(this, 'ignoreBOM', {value: this._ignoreBOM});
}

TextDecoder.prototype = {
  /**
   * @param {ArrayBufferView=} input The buffer of bytes to decode.
   * @param {Object=} options
   * @return {string} The decoded string.
   */
  decode: function decode(input, options) {
    var bytes;
    if (typeof input === 'object' && input instanceof ArrayBuffer) {
      bytes = new Uint8Array(input);
    } else if (typeof input === 'object' && 'buffer' in input &&
               input.buffer instanceof ArrayBuffer) {
      bytes = new Uint8Array(input.buffer,
                             input.byteOffset,
                             input.byteLength);
    } else {
      bytes = new Uint8Array(0);
    }

    options = ToDictionary(options);

    if (!this._streaming) {
      this._decoder = new UTF8Decoder({fatal: this._fatal});
      this._BOMseen = false;
    }
    this._streaming = Boolean(options['stream']);

    var input_stream = new Stream(bytes);

    var code_points = [];

    /** @type {?(number|!Array.<number>)} */
    var result;

    while (!input_stream.endOfStream()) {
      result = this._decoder.handler(input_stream, input_stream.read());
      if (result === finished)
        break;
      if (result === null)
        continue;
      if (Array.isArray(result))
        code_points.push.apply(code_points, /**@type {!Array.<number>}*/(result));
      else
        code_points.push(result);
    }
    if (!this._streaming) {
      do {
        result = this._decoder.handler(input_stream, input_stream.read());
        if (result === finished)
          break;
        if (result === null)
          continue;
        if (Array.isArray(result))
          code_points.push.apply(code_points, /**@type {!Array.<number>}*/(result));
        else
          code_points.push(result);
      } while (!input_stream.endOfStream());
      this._decoder = null;
    }

    if (code_points.length) {
      // If encoding is one of utf-8, utf-16be, and utf-16le, and
      // ignore BOM flag and BOM seen flag are unset, run these
      // subsubsteps:
      if (['utf-8'].indexOf(this.encoding) !== -1 &&
          !this._ignoreBOM && !this._BOMseen) {
        // If token is U+FEFF, set BOM seen flag.
        if (code_points[0] === 0xFEFF) {
          this._BOMseen = true;
          code_points.shift();
        } else {
          // Otherwise, if token is not end-of-stream, set BOM seen
          // flag and append token to output.
          this._BOMseen = true;
        }
      }
    }

    return codePointsToString(code_points);
  }
};

// 7.2 Interface TextEncoder

/**
 * @constructor
 * @param {string=} encoding The label of the encoding;
 *     defaults to 'utf-8'.
 * @param {Object=} options
 */
function TextEncoder(encoding, options) {
  if (!(this instanceof TextEncoder))
    return new TextEncoder(encoding, options);
  encoding = encoding !== undefined ? String(encoding).toLowerCase() : DEFAULT_ENCODING;
  if (encoding !== DEFAULT_ENCODING) {
    throw new Error('Encoding not supported. Only utf-8 is supported');
  }
  options = ToDictionary(options);

  /** @private @type {boolean} */
  this._streaming = false;
  /** @private @type {?Encoder} */
  this._encoder = null;
  /** @private @type {{fatal: boolean}} */
  this._options = {fatal: Boolean(options['fatal'])};

  Object.defineProperty(this, 'encoding', {value: 'utf-8'});
}

TextEncoder.prototype = {
  /**
   * @param {string=} opt_string The string to encode.
   * @param {Object=} options
   * @return {Uint8Array} Encoded bytes, as a Uint8Array.
   */
  encode: function encode(opt_string, options) {
    opt_string = opt_string ? String(opt_string) : '';
    options = ToDictionary(options);

    // NOTE: This option is nonstandard. None of the encodings
    // permitted for encoding (i.e. UTF-8, UTF-16) are stateful,
    // so streaming is not necessary.
    if (!this._streaming)
      this._encoder = new UTF8Encoder(this._options);
    this._streaming = Boolean(options['stream']);

    var bytes = [];
    var input_stream = new Stream(stringToCodePoints(opt_string));
    /** @type {?(number|!Array.<number>)} */
    var result;
    while (!input_stream.endOfStream()) {
      result = this._encoder.handler(input_stream, input_stream.read());
      if (result === finished)
        break;
      if (Array.isArray(result))
        bytes.push.apply(bytes, /**@type {!Array.<number>}*/(result));
      else
        bytes.push(result);
    }
    if (!this._streaming) {
      while (true) {
        result = this._encoder.handler(input_stream, input_stream.read());
        if (result === finished)
          break;
        if (Array.isArray(result))
          bytes.push.apply(bytes, /**@type {!Array.<number>}*/(result));
        else
          bytes.push(result);
      }
      this._encoder = null;
    }
    return new Uint8Array(bytes);
  }
};

//
// 8. The encoding
//

// 8.1 utf-8

/**
 * @constructor
 * @implements {Decoder}
 * @param {{fatal: boolean}} options
 */
function UTF8Decoder(options) {
  var fatal = options.fatal;

  // utf-8's decoder's has an associated utf-8 code point, utf-8
  // bytes seen, and utf-8 bytes needed (all initially 0), a utf-8
  // lower boundary (initially 0x80), and a utf-8 upper boundary
  // (initially 0xBF).
  var /** @type {number} */ utf8_code_point = 0,
      /** @type {number} */ utf8_bytes_seen = 0,
      /** @type {number} */ utf8_bytes_needed = 0,
      /** @type {number} */ utf8_lower_boundary = 0x80,
      /** @type {number} */ utf8_upper_boundary = 0xBF;

  /**
   * @param {Stream} stream The stream of bytes being decoded.
   * @param {number} bite The next byte read from the stream.
   * @return {?(number|!Array.<number>)} The next code point(s)
   *     decoded, or null if not enough data exists in the input
   *     stream to decode a complete code point.
   */
  this.handler = function(stream, bite) {
    // 1. If byte is end-of-stream and utf-8 bytes needed is not 0,
    // set utf-8 bytes needed to 0 and return error.
    if (bite === end_of_stream && utf8_bytes_needed !== 0) {
      utf8_bytes_needed = 0;
      return decoderError(fatal);
    }

    // 2. If byte is end-of-stream, return finished.
    if (bite === end_of_stream)
      return finished;

    // 3. If utf-8 bytes needed is 0, based on byte:
    if (utf8_bytes_needed === 0) {

      // 0x00 to 0x7F
      if (inRange(bite, 0x00, 0x7F)) {
        // Return a code point whose value is byte.
        return bite;
      }

      // 0xC2 to 0xDF
      if (inRange(bite, 0xC2, 0xDF)) {
        // Set utf-8 bytes needed to 1 and utf-8 code point to byte
        // − 0xC0.
        utf8_bytes_needed = 1;
        utf8_code_point = bite - 0xC0;
      }

      // 0xE0 to 0xEF
      else if (inRange(bite, 0xE0, 0xEF)) {
        // 1. If byte is 0xE0, set utf-8 lower boundary to 0xA0.
        if (bite === 0xE0)
          utf8_lower_boundary = 0xA0;
        // 2. If byte is 0xED, set utf-8 upper boundary to 0x9F.
        if (bite === 0xED)
          utf8_upper_boundary = 0x9F;
        // 3. Set utf-8 bytes needed to 2 and utf-8 code point to
        // byte − 0xE0.
        utf8_bytes_needed = 2;
        utf8_code_point = bite - 0xE0;
      }

      // 0xF0 to 0xF4
      else if (inRange(bite, 0xF0, 0xF4)) {
        // 1. If byte is 0xF0, set utf-8 lower boundary to 0x90.
        if (bite === 0xF0)
          utf8_lower_boundary = 0x90;
        // 2. If byte is 0xF4, set utf-8 upper boundary to 0x8F.
        if (bite === 0xF4)
          utf8_upper_boundary = 0x8F;
        // 3. Set utf-8 bytes needed to 3 and utf-8 code point to
        // byte − 0xF0.
        utf8_bytes_needed = 3;
        utf8_code_point = bite - 0xF0;
      }

      // Otherwise
      else {
        // Return error.
        return decoderError(fatal);
      }

      // Then (byte is in the range 0xC2 to 0xF4) set utf-8 code
      // point to utf-8 code point << (6 × utf-8 bytes needed) and
      // return continue.
      utf8_code_point = utf8_code_point << (6 * utf8_bytes_needed);
      return null;
    }

    // 4. If byte is not in the range utf-8 lower boundary to utf-8
    // upper boundary, run these substeps:
    if (!inRange(bite, utf8_lower_boundary, utf8_upper_boundary)) {

      // 1. Set utf-8 code point, utf-8 bytes needed, and utf-8
      // bytes seen to 0, set utf-8 lower boundary to 0x80, and set
      // utf-8 upper boundary to 0xBF.
      utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0;
      utf8_lower_boundary = 0x80;
      utf8_upper_boundary = 0xBF;

      // 2. Prepend byte to stream.
      stream.prepend(bite);

      // 3. Return error.
      return decoderError(fatal);
    }

    // 5. Set utf-8 lower boundary to 0x80 and utf-8 upper boundary
    // to 0xBF.
    utf8_lower_boundary = 0x80;
    utf8_upper_boundary = 0xBF;

    // 6. Increase utf-8 bytes seen by one and set utf-8 code point
    // to utf-8 code point + (byte − 0x80) << (6 × (utf-8 bytes
    // needed − utf-8 bytes seen)).
    utf8_bytes_seen += 1;
    utf8_code_point += (bite - 0x80) << (6 * (utf8_bytes_needed - utf8_bytes_seen));

    // 7. If utf-8 bytes seen is not equal to utf-8 bytes needed,
    // continue.
    if (utf8_bytes_seen !== utf8_bytes_needed)
      return null;

    // 8. Let code point be utf-8 code point.
    var code_point = utf8_code_point;

    // 9. Set utf-8 code point, utf-8 bytes needed, and utf-8 bytes
    // seen to 0.
    utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0;

    // 10. Return a code point whose value is code point.
    return code_point;
  };
}

/**
 * @constructor
 * @implements {Encoder}
 * @param {{fatal: boolean}} options
 */
function UTF8Encoder(options) {
  var fatal = options.fatal;
  /**
   * @param {Stream} stream Input stream.
   * @param {number} code_point Next code point read from the stream.
   * @return {(number|!Array.<number>)} Byte(s) to emit.
   */
  this.handler = function(stream, code_point) {
    // 1. If code point is end-of-stream, return finished.
    if (code_point === end_of_stream)
      return finished;

    // 2. If code point is in the range U+0000 to U+007F, return a
    // byte whose value is code point.
    if (inRange(code_point, 0x0000, 0x007f))
      return code_point;

    // 3. Set count and offset based on the range code point is in:
    var count, offset;
    // U+0080 to U+07FF:    1 and 0xC0
    if (inRange(code_point, 0x0080, 0x07FF)) {
      count = 1;
      offset = 0xC0;
    }
    // U+0800 to U+FFFF:    2 and 0xE0
    else if (inRange(code_point, 0x0800, 0xFFFF)) {
      count = 2;
      offset = 0xE0;
    }
    // U+10000 to U+10FFFF: 3 and 0xF0
    else if (inRange(code_point, 0x10000, 0x10FFFF)) {
      count = 3;
      offset = 0xF0;
    }

    // 4.Let bytes be a byte sequence whose first byte is (code
    // point >> (6 × count)) + offset.
    var bytes = [(code_point >> (6 * count)) + offset];

    // 5. Run these substeps while count is greater than 0:
    while (count > 0) {

      // 1. Set temp to code point >> (6 × (count − 1)).
      var temp = code_point >> (6 * (count - 1));

      // 2. Append to bytes 0x80 | (temp & 0x3F).
      bytes.push(0x80 | (temp & 0x3F));

      // 3. Decrease count by one.
      count -= 1;
    }

    // 6. Return bytes bytes, in order.
    return bytes;
  };
}

exports.TextEncoder = TextEncoder;
exports.TextDecoder = TextDecoder;

/***/ }),

/***/ "./node_modules/wkt-parser/index.js":
/*!******************************************!*\
  !*** ./node_modules/wkt-parser/index.js ***!
  \******************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* export default binding */ __WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var _parser__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./parser */ "./node_modules/wkt-parser/parser.js");
/* harmony import */ var _process__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./process */ "./node_modules/wkt-parser/process.js");
var D2R = 0.01745329251994329577;





function rename(obj, params) {
  var outName = params[0];
  var inName = params[1];
  if (!(outName in obj) && (inName in obj)) {
    obj[outName] = obj[inName];
    if (params.length === 3) {
      obj[outName] = params[2](obj[outName]);
    }
  }
}

function d2r(input) {
  return input * D2R;
}

function cleanWKT(wkt) {
  if (wkt.type === 'GEOGCS') {
    wkt.projName = 'longlat';
  } else if (wkt.type === 'LOCAL_CS') {
    wkt.projName = 'identity';
    wkt.local = true;
  } else {
    if (typeof wkt.PROJECTION === 'object') {
      wkt.projName = Object.keys(wkt.PROJECTION)[0];
    } else {
      wkt.projName = wkt.PROJECTION;
    }
  }
  if (wkt.AXIS) {
    var axisOrder = '';
    for (var i = 0, ii = wkt.AXIS.length; i < ii; ++i) {
      var axis = [wkt.AXIS[i][0].toLowerCase(), wkt.AXIS[i][1].toLowerCase()];
      if (axis[0].indexOf('north') !== -1 || ((axis[0] === 'y' || axis[0] === 'lat') && axis[1] === 'north')) {
        axisOrder += 'n';
      } else if (axis[0].indexOf('south') !== -1 || ((axis[0] === 'y' || axis[0] === 'lat') && axis[1] === 'south')) {
        axisOrder += 's';
      } else if (axis[0].indexOf('east') !== -1 || ((axis[0] === 'x' || axis[0] === 'lon') && axis[1] === 'east')) {
        axisOrder += 'e';
      } else if (axis[0].indexOf('west') !== -1 || ((axis[0] === 'x' || axis[0] === 'lon') && axis[1] === 'west')) {
        axisOrder += 'w';
      }
    }
    if (axisOrder.length === 2) {
      axisOrder += 'u';
    }
    if (axisOrder.length === 3) {
      wkt.axis = axisOrder;
    }
  }
  if (wkt.UNIT) {
    wkt.units = wkt.UNIT.name.toLowerCase();
    if (wkt.units === 'metre') {
      wkt.units = 'meter';
    }
    if (wkt.UNIT.convert) {
      if (wkt.type === 'GEOGCS') {
        if (wkt.DATUM && wkt.DATUM.SPHEROID) {
          wkt.to_meter = wkt.UNIT.convert*wkt.DATUM.SPHEROID.a;
        }
      } else {
        wkt.to_meter = wkt.UNIT.convert;
      }
    }
  }
  var geogcs = wkt.GEOGCS;
  if (wkt.type === 'GEOGCS') {
    geogcs = wkt;
  }
  if (geogcs) {
    //if(wkt.GEOGCS.PRIMEM&&wkt.GEOGCS.PRIMEM.convert){
    //  wkt.from_greenwich=wkt.GEOGCS.PRIMEM.convert*D2R;
    //}
    if (geogcs.DATUM) {
      wkt.datumCode = geogcs.DATUM.name.toLowerCase();
    } else {
      wkt.datumCode = geogcs.name.toLowerCase();
    }
    if (wkt.datumCode.slice(0, 2) === 'd_') {
      wkt.datumCode = wkt.datumCode.slice(2);
    }
    if (wkt.datumCode === 'new_zealand_geodetic_datum_1949' || wkt.datumCode === 'new_zealand_1949') {
      wkt.datumCode = 'nzgd49';
    }
    if (wkt.datumCode === 'wgs_1984' || wkt.datumCode === 'world_geodetic_system_1984') {
      if (wkt.PROJECTION === 'Mercator_Auxiliary_Sphere') {
        wkt.sphere = true;
      }
      wkt.datumCode = 'wgs84';
    }
    if (wkt.datumCode.slice(-6) === '_ferro') {
      wkt.datumCode = wkt.datumCode.slice(0, - 6);
    }
    if (wkt.datumCode.slice(-8) === '_jakarta') {
      wkt.datumCode = wkt.datumCode.slice(0, - 8);
    }
    if (~wkt.datumCode.indexOf('belge')) {
      wkt.datumCode = 'rnb72';
    }
    if (geogcs.DATUM && geogcs.DATUM.SPHEROID) {
      wkt.ellps = geogcs.DATUM.SPHEROID.name.replace('_19', '').replace(/[Cc]larke\_18/, 'clrk');
      if (wkt.ellps.toLowerCase().slice(0, 13) === 'international') {
        wkt.ellps = 'intl';
      }

      wkt.a = geogcs.DATUM.SPHEROID.a;
      wkt.rf = parseFloat(geogcs.DATUM.SPHEROID.rf, 10);
    }

    if (geogcs.DATUM && geogcs.DATUM.TOWGS84) {
      wkt.datum_params = geogcs.DATUM.TOWGS84;
    }
    if (~wkt.datumCode.indexOf('osgb_1936')) {
      wkt.datumCode = 'osgb36';
    }
    if (~wkt.datumCode.indexOf('osni_1952')) {
      wkt.datumCode = 'osni52';
    }
    if (~wkt.datumCode.indexOf('tm65')
      || ~wkt.datumCode.indexOf('geodetic_datum_of_1965')) {
      wkt.datumCode = 'ire65';
    }
    if (wkt.datumCode === 'ch1903+') {
      wkt.datumCode = 'ch1903';
    }
    if (~wkt.datumCode.indexOf('israel')) {
      wkt.datumCode = 'isr93';
    }
  }
  if (wkt.b && !isFinite(wkt.b)) {
    wkt.b = wkt.a;
  }

  function toMeter(input) {
    var ratio = wkt.to_meter || 1;
    return input * ratio;
  }
  var renamer = function(a) {
    return rename(wkt, a);
  };
  var list = [
    ['standard_parallel_1', 'Standard_Parallel_1'],
    ['standard_parallel_1', 'Latitude of 1st standard parallel'],
    ['standard_parallel_2', 'Standard_Parallel_2'],
    ['standard_parallel_2', 'Latitude of 2nd standard parallel'],
    ['false_easting', 'False_Easting'],
    ['false_easting', 'False easting'],
    ['false-easting', 'Easting at false origin'],
    ['false_northing', 'False_Northing'],
    ['false_northing', 'False northing'],
    ['false_northing', 'Northing at false origin'],
    ['central_meridian', 'Central_Meridian'],
    ['central_meridian', 'Longitude of natural origin'],
    ['central_meridian', 'Longitude of false origin'],
    ['latitude_of_origin', 'Latitude_Of_Origin'],
    ['latitude_of_origin', 'Central_Parallel'],
    ['latitude_of_origin', 'Latitude of natural origin'],
    ['latitude_of_origin', 'Latitude of false origin'],
    ['scale_factor', 'Scale_Factor'],
    ['k0', 'scale_factor'],
    ['latitude_of_center', 'Latitude_Of_Center'],
    ['latitude_of_center', 'Latitude_of_center'],
    ['lat0', 'latitude_of_center', d2r],
    ['longitude_of_center', 'Longitude_Of_Center'],
    ['longitude_of_center', 'Longitude_of_center'],
    ['longc', 'longitude_of_center', d2r],
    ['x0', 'false_easting', toMeter],
    ['y0', 'false_northing', toMeter],
    ['long0', 'central_meridian', d2r],
    ['lat0', 'latitude_of_origin', d2r],
    ['lat0', 'standard_parallel_1', d2r],
    ['lat1', 'standard_parallel_1', d2r],
    ['lat2', 'standard_parallel_2', d2r],
    ['azimuth', 'Azimuth'],
    ['alpha', 'azimuth', d2r],
    ['srsCode', 'name']
  ];
  list.forEach(renamer);
  if (!wkt.long0 && wkt.longc && (wkt.projName === 'Albers_Conic_Equal_Area' || wkt.projName === 'Lambert_Azimuthal_Equal_Area')) {
    wkt.long0 = wkt.longc;
  }
  if (!wkt.lat_ts && wkt.lat1 && (wkt.projName === 'Stereographic_South_Pole' || wkt.projName === 'Polar Stereographic (variant B)')) {
    wkt.lat0 = d2r(wkt.lat1 > 0 ? 90 : -90);
    wkt.lat_ts = wkt.lat1;
  }
}
/* harmony default export */ function __WEBPACK_DEFAULT_EXPORT__(wkt) {
  var lisp = (0,_parser__WEBPACK_IMPORTED_MODULE_0__["default"])(wkt);
  var type = lisp.shift();
  var name = lisp.shift();
  lisp.unshift(['name', name]);
  lisp.unshift(['type', type]);
  var obj = {};
  (0,_process__WEBPACK_IMPORTED_MODULE_1__.sExpr)(lisp, obj);
  cleanWKT(obj);
  return obj;
}


/***/ }),

/***/ "./node_modules/wkt-parser/parser.js":
/*!*******************************************!*\
  !*** ./node_modules/wkt-parser/parser.js ***!
  \*******************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (parseString);

var NEUTRAL = 1;
var KEYWORD = 2;
var NUMBER = 3;
var QUOTED = 4;
var AFTERQUOTE = 5;
var ENDED = -1;
var whitespace = /\s/;
var latin = /[A-Za-z]/;
var keyword = /[A-Za-z84_]/;
var endThings = /[,\]]/;
var digets = /[\d\.E\-\+]/;
// const ignoredChar = /[\s_\-\/\(\)]/g;
function Parser(text) {
  if (typeof text !== 'string') {
    throw new Error('not a string');
  }
  this.text = text.trim();
  this.level = 0;
  this.place = 0;
  this.root = null;
  this.stack = [];
  this.currentObject = null;
  this.state = NEUTRAL;
}
Parser.prototype.readCharicter = function() {
  var char = this.text[this.place++];
  if (this.state !== QUOTED) {
    while (whitespace.test(char)) {
      if (this.place >= this.text.length) {
        return;
      }
      char = this.text[this.place++];
    }
  }
  switch (this.state) {
    case NEUTRAL:
      return this.neutral(char);
    case KEYWORD:
      return this.keyword(char)
    case QUOTED:
      return this.quoted(char);
    case AFTERQUOTE:
      return this.afterquote(char);
    case NUMBER:
      return this.number(char);
    case ENDED:
      return;
  }
};
Parser.prototype.afterquote = function(char) {
  if (char === '"') {
    this.word += '"';
    this.state = QUOTED;
    return;
  }
  if (endThings.test(char)) {
    this.word = this.word.trim();
    this.afterItem(char);
    return;
  }
  throw new Error('havn\'t handled "' +char + '" in afterquote yet, index ' + this.place);
};
Parser.prototype.afterItem = function(char) {
  if (char === ',') {
    if (this.word !== null) {
      this.currentObject.push(this.word);
    }
    this.word = null;
    this.state = NEUTRAL;
    return;
  }
  if (char === ']') {
    this.level--;
    if (this.word !== null) {
      this.currentObject.push(this.word);
      this.word = null;
    }
    this.state = NEUTRAL;
    this.currentObject = this.stack.pop();
    if (!this.currentObject) {
      this.state = ENDED;
    }

    return;
  }
};
Parser.prototype.number = function(char) {
  if (digets.test(char)) {
    this.word += char;
    return;
  }
  if (endThings.test(char)) {
    this.word = parseFloat(this.word);
    this.afterItem(char);
    return;
  }
  throw new Error('havn\'t handled "' +char + '" in number yet, index ' + this.place);
};
Parser.prototype.quoted = function(char) {
  if (char === '"') {
    this.state = AFTERQUOTE;
    return;
  }
  this.word += char;
  return;
};
Parser.prototype.keyword = function(char) {
  if (keyword.test(char)) {
    this.word += char;
    return;
  }
  if (char === '[') {
    var newObjects = [];
    newObjects.push(this.word);
    this.level++;
    if (this.root === null) {
      this.root = newObjects;
    } else {
      this.currentObject.push(newObjects);
    }
    this.stack.push(this.currentObject);
    this.currentObject = newObjects;
    this.state = NEUTRAL;
    return;
  }
  if (endThings.test(char)) {
    this.afterItem(char);
    return;
  }
  throw new Error('havn\'t handled "' +char + '" in keyword yet, index ' + this.place);
};
Parser.prototype.neutral = function(char) {
  if (latin.test(char)) {
    this.word = char;
    this.state = KEYWORD;
    return;
  }
  if (char === '"') {
    this.word = '';
    this.state = QUOTED;
    return;
  }
  if (digets.test(char)) {
    this.word = char;
    this.state = NUMBER;
    return;
  }
  if (endThings.test(char)) {
    this.afterItem(char);
    return;
  }
  throw new Error('havn\'t handled "' +char + '" in neutral yet, index ' + this.place);
};
Parser.prototype.output = function() {
  while (this.place < this.text.length) {
    this.readCharicter();
  }
  if (this.state === ENDED) {
    return this.root;
  }
  throw new Error('unable to parse string "' +this.text + '". State is ' + this.state);
};

function parseString(txt) {
  var parser = new Parser(txt);
  return parser.output();
}


/***/ }),

/***/ "./node_modules/wkt-parser/process.js":
/*!********************************************!*\
  !*** ./node_modules/wkt-parser/process.js ***!
  \********************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "sExpr": () => (/* binding */ sExpr)
/* harmony export */ });


function mapit(obj, key, value) {
  if (Array.isArray(key)) {
    value.unshift(key);
    key = null;
  }
  var thing = key ? {} : obj;

  var out = value.reduce(function(newObj, item) {
    sExpr(item, newObj);
    return newObj
  }, thing);
  if (key) {
    obj[key] = out;
  }
}

function sExpr(v, obj) {
  if (!Array.isArray(v)) {
    obj[v] = true;
    return;
  }
  var key = v.shift();
  if (key === 'PARAMETER') {
    key = v.shift();
  }
  if (v.length === 1) {
    if (Array.isArray(v[0])) {
      obj[key] = {};
      sExpr(v[0], obj[key]);
      return;
    }
    obj[key] = v[0];
    return;
  }
  if (!v.length) {
    obj[key] = true;
    return;
  }
  if (key === 'TOWGS84') {
    obj[key] = v;
    return;
  }
  if (key === 'AXIS') {
    if (!(key in obj)) {
      obj[key] = [];
    }
    obj[key].push(v);
    return;
  }
  if (!Array.isArray(key)) {
    obj[key] = {};
  }

  var i;
  switch (key) {
    case 'UNIT':
    case 'PRIMEM':
    case 'VERT_DATUM':
      obj[key] = {
        name: v[0].toLowerCase(),
        convert: v[1]
      };
      if (v.length === 3) {
        sExpr(v[2], obj[key]);
      }
      return;
    case 'SPHEROID':
    case 'ELLIPSOID':
      obj[key] = {
        name: v[0],
        a: v[1],
        rf: v[2]
      };
      if (v.length === 4) {
        sExpr(v[3], obj[key]);
      }
      return;
    case 'PROJECTEDCRS':
    case 'PROJCRS':
    case 'GEOGCS':
    case 'GEOCCS':
    case 'PROJCS':
    case 'LOCAL_CS':
    case 'GEODCRS':
    case 'GEODETICCRS':
    case 'GEODETICDATUM':
    case 'EDATUM':
    case 'ENGINEERINGDATUM':
    case 'VERT_CS':
    case 'VERTCRS':
    case 'VERTICALCRS':
    case 'COMPD_CS':
    case 'COMPOUNDCRS':
    case 'ENGINEERINGCRS':
    case 'ENGCRS':
    case 'FITTED_CS':
    case 'LOCAL_DATUM':
    case 'DATUM':
      v[0] = ['name', v[0]];
      mapit(obj, key, v);
      return;
    default:
      i = -1;
      while (++i < v.length) {
        if (!Array.isArray(v[i])) {
          return sExpr(v, obj[key]);
        }
      }
      return mapit(obj, key, v);
  }
}


/***/ }),

/***/ "./src/AreaMeasurement.js":
/*!********************************!*\
  !*** ./src/AreaMeasurement.js ***!
  \********************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var itowns__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! itowns */ "./node_modules/itowns/lib/Main.js");



const coordinates = new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates('EPSG:4978');


class AreaMeasurement {
    #areaPoints = [];

    constructor(potreeMeasurement, crs) {
        this.potreeMeasurement = potreeMeasurement;
        this.crs = crs;

        // ---------- TWEAK AREA MEASUREMENT TOOL : ----------

        // Override Potree area measure method. The original Potree method gives a planar area delimited from given
        // points (summits of the area). The area returned by the method is computed from `x` and `y` components of
        // the points coordinates.
        //
        // By default, the points coordinates passed to the method are in iTowns viewer CRS, which is geocentric.
        // Therefore, computing an area over the `x` and `y` components of these coordinates is incorrect - it
        // actually computes its orthogonal projection on the equatorial plane.
        //
        // To fix this, we transform each coordinates of the area summits in the point cloud CRS, which is
        // geographic. We store each transformed coordinates in an array. Finally, we override Potree area measure
        // method so that it computes area from this array.


        // Array containing the geographic coordinates of each area summits
        this.#areaPoints.push(new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates(this.crs));

        // Add a Coordinates to the array when an area summit is created.
        this.potreeMeasurement.addEventListener('marker_added', () => {
            this.#areaPoints.push(new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates(this.crs))
        }, false);

        // Translate the area summit coordinates from itowns viewer CRS to geographic CRS when the summit is
        // moved. It also happens when the summit is created.
        this.potreeMeasurement.addEventListener('marker_moved', (event) => {
            coordinates.setFromVector3(event.position).as(this.crs, this.#areaPoints[event.index]);
        }, false);

        // Clear the coordinates array when we remove an area summit.
        this.potreeMeasurement.addEventListener('marker_removed', () => {
            this.#areaPoints.splice(this.#areaPoints.length - 1, 1);
        }, false);

        // Override potree `Measure.getArea` method to use projected coordinates to compute area
        this.potreeMeasurement.getArea = this.getArea.bind(this);
    }

    getArea() {
        let area = 0;
        let j = this.#areaPoints.length - 1;

        for (let i = 0; i < this.#areaPoints.length; i++) {
            let p1 = this.#areaPoints[i];
            let p2 = this.#areaPoints[j];
            area += (p2.x + p1.x) * (p1.y - p2.y);
            j = i
        }

        return Math.abs(area / 2);
    }
}


/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (AreaMeasurement);


/***/ }),

/***/ "./src/CloudExtractor.js":
/*!*******************************!*\
  !*** ./src/CloudExtractor.js ***!
  \*******************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var itowns__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! itowns */ "./node_modules/itowns/lib/Main.js");



class CloudExtractor {
    #_url;
    #_onSuccess;
    #_onFailure;

    #_fetchAttemptNumber = 0;

    constructor(url, onSuccess = () => {}, onFailure = () => {}) {
        this.#_url = url;
        this.#_onSuccess = onSuccess.bind(this);
        this.#_onFailure = onFailure.bind(this);
    }

    getUrlForMeasurement(measurement) {
        const pointsEPSG2154 = measurement.potreeMeasurement.points.map((point) => {
            const coord = new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates('EPSG:4978', point.position).as(measurement.crs);

            // round precision, now we can lose 1 centimeter
            coord.x = coord.x.toFixed(2);
            coord.y = coord.y.toFixed(2);
            coord.z = coord.z.toFixed(2);

            return coord;
        });

        let stringMeasurement = `${pointsEPSG2154[0].x}_${pointsEPSG2154[0].y}`;
        for (let i = 1; i < pointsEPSG2154.length; i++) {
            stringMeasurement += `,${pointsEPSG2154[i].x}_${pointsEPSG2154[i].y}`;
        }

        return this.#_url.replace('poly={}', `poly=${stringMeasurement}`);
    }

    export(measurement) {
        fetch(this.getUrlForMeasurement(measurement))
            .then(response => {
                switch (response.status) {
                    case 503:
                        this.#_fetchAttemptNumber = 0;
                        this.#_onFailure('connection-failure');
                        break;
                    case 500:
                        this.#_fetchAttemptNumber = 0;
                        this.#_onFailure('server-internal-error');
                        break;
                    case 400:
                        this.#_fetchAttemptNumber = 0;
                        response.json().then(message => {
                            switch (message.id) {
                                case 'BAD_REQUEST_BAD_POLYGON':
                                    this.#_onFailure('points-number');
                                    break;
                                case 'BAD_REQUEST_AREA':
                                    this.#_onFailure('too-big-area');
                                    break;
                                case 'BAD_REQUEST_NO_SOURCE':
                                    this.#_onFailure('no-config-file')
                                    break;
                                default:
                                    break;
                            }
                        });
                        break;
                    case 200:
                        this.#_fetchAttemptNumber = 0;
                        this.#_onSuccess(response);
                        break;
                    case 202:
                        this.#_fetchAttemptNumber += 1;
                        setTimeout(() => { this.export(measurement); }, 1000 * this.#_fetchAttemptNumber);
                        break;
                    default:
                        this.#_fetchAttemptNumber = 0;
                        this.#_onFailure('unknown');
                        break;
                }
            })
            .catch(() => {
                this.#_fetchAttemptNumber = 0;
                this.#_onFailure('connection-failure');
            });
    }
}


/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (CloudExtractor);


/***/ }),

/***/ "./src/index.js":
/*!**********************!*\
  !*** ./src/index.js ***!
  \**********************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "main": () => (/* binding */ main),
/* harmony export */   "itowns": () => (/* reexport module object */ itowns__WEBPACK_IMPORTED_MODULE_0__)
/* harmony export */ });
/* harmony import */ var itowns__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! itowns */ "./node_modules/itowns/lib/Main.js");
/* harmony import */ var _potreeViewer__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./potreeViewer */ "./src/potreeViewer.js");
/* harmony import */ var _sig_3d__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./sig_3d */ "./src/sig_3d.js");
/* harmony import */ var _potree_gui__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./potree_gui */ "./src/potree_gui.js");
/* harmony import */ var _widgets__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./widgets */ "./src/widgets.js");
/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js");







let eptURL = new URLSearchParams(window.location.search).get('dataset')
    || `${location.protocol}//lidarhd.pocgpf.ovh/data_test/lot7/blocs/NP/EPT_4978/ept.json`;

// Add 'ept.json' at end of URL if it points a repository.
if (eptURL.substring(eptURL.length - 5, eptURL.length) !== '.json') {
    eptURL += (eptURL.lastIndexOf('/') === eptURL.length -1 ? '' : '/') + 'ept.json';
}

let pivotURL = eptURL.substring(0, eptURL.lastIndexOf('/') + 1) + '../metadata/pivotTHREE.json';

function main() {
    const potreeViewer = (0,_potreeViewer__WEBPACK_IMPORTED_MODULE_1__["default"])(eptURL);
    const view = (0,_sig_3d__WEBPACK_IMPORTED_MODULE_2__["default"])(potreeViewer);

    potreeViewer.scene.cameraP = view.camera.camera3D;


    potreeViewer.loadGUI(() => {
        potreeViewer.setLanguage('fr');
        potreeViewer.toggleSidebar();
        potreeViewer.setBackground('black');
        _potree_gui__WEBPACK_IMPORTED_MODULE_3__["default"].setPotreeGui(view, potreeViewer);
    });


    // ---------- BIND ITOWNS DATA VISIBILITY TO POTREE SCENE GUI MENU : -----------------------------------------------

    potreeViewer.onGUILoaded(() => {
        _potree_gui__WEBPACK_IMPORTED_MODULE_3__["default"].setupTerrainVisibility(view, (visible) => {
            view.tileLayer.visible = true;
            view.tileLayer.opacity = visible ? 1.0 : 0.001;
            view.getLayerById('atmosphere').visible = visible;
            view.controls.handleCollision = visible;
            view.notifyChange(view.camera.camera3D, true);
            // view.controls.minDistance = visible ? 150 : 50;

            // Hide ortho-images layer and both DEM layers.
            if (view.getLayerById('Ortho')) {
                view.getLayerById('Ortho').visible = visible;
            }
            view.getLayers(l => l.isElevationLayer).forEach(l => {
                // TODO : perhaps we don't need to update ElevationLayer. We could just hide it since a 0 scale is the
                //  same as no ElevationLayer at all.
                l.scale = visible ? 1.0 : 0.0;
                view.notifyChange(l);
            })
        });
    });



    // ---------- DISPLAY POINT CLOUD DATA USING POTREE : --------------------------------------------------------------

    itowns__WEBPACK_IMPORTED_MODULE_0__.Fetcher.json(pivotURL).then(
        (pivot) => {
            const pivotTHREE = new three__WEBPACK_IMPORTED_MODULE_5__.ObjectLoader().parse(pivot);
            Potree.loadPointCloud(eptURL, "pointCloud", function(e) {
                const pointCloud = e.pointcloud;
                const material = pointCloud.material;
                potreeViewer.scene.addPointCloud(pointCloud);
                pointCloud.getAttribute("intensity").range = [0, 10000];
                material.size = 0.8;
                material.pointSizeType = Potree.PointSizeType.ADAPTIVE;
                material.intensityRange = [0, 10000];
                material.shape = Potree.PointShape.CIRCLE
                material.isGeocentric = true;
                // material.activeAttributeName = "intensity";

                const pivot = new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates('EPSG:4978', 0, 0, 0);
                pivot.setFromVector3(pivotTHREE.position);

                const p = { coord: pivot, range: 55000, tilt: 80, heading: 0, time: 1000 };
                view.controls.lookAtCoordinate(p, false);
                _widgets__WEBPACK_IMPORTED_MODULE_4__["default"].setCenterButton(p);

                pointCloud.position.copy(pivotTHREE.position);
                pointCloud.quaternion.copy(pivotTHREE.quaternion);
                pointCloud.updateMatrixWorld(true);
                _potree_gui__WEBPACK_IMPORTED_MODULE_3__["default"].addAttributesGui(pointCloud);
            });
        }
    );
}





/***/ }),

/***/ "./src/loading-screen.js":
/*!*******************************!*\
  !*** ./src/loading-screen.js ***!
  \*******************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* global itowns */
const DEFAULT_OPTIONS = {
    hidingTimeout: 3000,
}


class LoadingScreen {
    #_hidingTimeout;

    constructor(options = {}) {
        this.parentElement = options.parentElement || document.body;
        this.#_hidingTimeout = options.hidingTimeout || DEFAULT_OPTIONS.hidingTimeout;

        this.domElement = options.domElement || document.createElement('div');
        this.parentElement.appendChild(this.domElement)

        this.domElement.id = this.domElement.id || 'itowns-loader';
        this.domElement.innerHTML = '<div>'
            + '<span class="c1">i</span>'
            + '<span class="c2">T</span>'
            + '<span class="c3">o</span>'
            + '<span class="c4">w</span>'
            + '<span class="c5">n</span>'
            + '<span class="c6">s</span>'
        + '</div>';
    }

    hideLoadingScreenOn(eventDispatcher, event) {
        const onHide = () => {
            this.domElement.classList.add('hidden');

            this.domElement.addEventListener('transitionend', () => {
                this.parentElement.removeChild(this.domElement);
            });

            eventDispatcher.removeEventListener(event, onHide);
        };

        eventDispatcher.addEventListener(event, onHide);
        setTimeout(onHide, this.#_hidingTimeout);
    }
}


/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (LoadingScreen);

/***/ }),

/***/ "./src/mouse-instructions.js":
/*!***********************************!*\
  !*** ./src/mouse-instructions.js ***!
  \***********************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "setupMouseInstructions": () => (/* binding */ setupMouseInstructions),
/* harmony export */   "getMouseVisual": () => (/* binding */ getMouseVisual)
/* harmony export */ });
function updateSvgNode(svgNode, style) {
    svgNode.style.display = 'inline';

    for (const key in style) {
        if (key === 'text') {
            const boundingBox = svgNode.getBBox();

            const textNode = document.createElementNS('http://www.w3.org/2000/svg', 'text');

            textNode.style['font-size'] = style[key].size || '1em';
            textNode.style['font-family'] = 'sans-serif';
            textNode.style['font-weight'] = 'bold';
            textNode.style.fill = style[key].color || 'white';
            textNode.style['text-shadow'] = style[key].shadow;
            textNode.style['text-anchor'] = 'middle';
            textNode.style['dominant-baseline'] = 'middle';

            textNode.setAttribute(
                'x',
                boundingBox.x + (boundingBox.width / 2) + (style[key].xOffset || 0),
            );
            textNode.setAttribute(
                'y',
                boundingBox.y + (boundingBox.height / 2) + (style[key].yOffset || 0),
            );

            textNode.innerHTML = style[key].field;

            svgNode.parentElement.appendChild(textNode);
        } else {
            svgNode.style[key] = style[key];
        }
    }
}


function getMouseVisual(svgSource, instruction) {
    const svgContainer = document.createElement('object');
    svgContainer.data = svgSource;

    svgContainer.addEventListener('load', () => {
        if (Array.isArray(instruction.id)) {
            for (const id of instruction.id) {
                updateSvgNode(svgContainer.contentDocument.getElementById(id), instruction.style);
            }
        } else {
            updateSvgNode(svgContainer.contentDocument.getElementById(instruction.id), instruction.style);
        }
    });

    return svgContainer;
}


function setupMouseInstructions(svgSource, instructions) {
    const domElement = document.createElement('div');
    domElement.id = 'mouse-instructions';

    for (const instruction of instructions) {
        const instructionContainer = document.createElement('div');
        instructionContainer.classList.add('instruction');
        instructionContainer.title = instruction.title;
        domElement.appendChild(instructionContainer);

        instructionContainer.appendChild(
            getMouseVisual(instruction.svgSource || svgSource, instruction),
        );

        const textContainer = document.createElement('div');
        textContainer.classList.add('instruction-text');
        textContainer.innerHTML = instruction.text;
        instructionContainer.appendChild(textContainer);
    }

    return domElement;
}




/***/ }),

/***/ "./src/potreeViewer.js":
/*!*****************************!*\
  !*** ./src/potreeViewer.js ***!
  \*****************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var itowns__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! itowns */ "./node_modules/itowns/lib/Main.js");
/* harmony import */ var _potree_gui__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./potree_gui */ "./src/potree_gui.js");
/* harmony import */ var _CloudExtractor__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./CloudExtractor */ "./src/CloudExtractor.js");
/* harmony import */ var _AreaMeasurement__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./AreaMeasurement */ "./src/AreaMeasurement.js");





const crs = 'EPSG:2154';

 // ---------- CREATE A POTREE VIEWER FOR SUPPORTING POINT CLOUD VISUALIZATION : ------------------------------------

const coordinates = new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates('EPSG:4978');

function potreeViewer(eptURL) {
    const viewerDiv = document.getElementById("potree_render_area");
    Potree.setTHREEShaderChunk(itowns__WEBPACK_IMPORTED_MODULE_0__.ShaderChunk.target);

    const potreeView = new Potree.Viewer(viewerDiv, {
        measureCoordinateCallback: (position) => {
            return coordinates.setFromVector3(position).as(crs).toVector3();
        },
        dynamicNearFar: false,
        isGeocentric: true,
        crs,
    });

    potreeView.setEDLEnabled(true);
    potreeView.setPointBudget(5_000_000);
    potreeView.setControls(null);
    potreeView.setDescription("LIDAR HD © IGN - 2022");


    // ---------- TWEAK POTREE USER INTERFACE : ------------------------------------------------------------------------


    potreeView.scene.addEventListener('measurement_added', (e) => {
        const { measurement } = e;
        if (measurement.name === "Area") {
            measurement.color.set('cyan');
            const areaMeasurement =  new _AreaMeasurement__WEBPACK_IMPORTED_MODULE_3__["default"](measurement, crs);

            const extractor = new _CloudExtractor__WEBPACK_IMPORTED_MODULE_2__["default"](
                `http://${window.location.hostname}:3000/points?poly={}&source=${eptURL}`,
                (result) => {
                    _potree_gui__WEBPACK_IMPORTED_MODULE_1__["default"].succeedExtraction(() => {
                        const dlFrame = document.getElementById("dlframe");
                        dlFrame.src = result.url;
                    });
                },
                _potree_gui__WEBPACK_IMPORTED_MODULE_1__["default"].failExtraction,
            );

            measurement.onExport = () => {
                extractor.export(areaMeasurement);
            };

            measurement.addEventListener('marker_moved', (e) => {
                if (measurement.getArea() > 1e6) {
                    measurement.color.set('red');
                } else {
                    measurement.color.set('cyan');
                }
            });

            _potree_gui__WEBPACK_IMPORTED_MODULE_1__["default"].addButtonExport();
        }
    });

    return potreeView;
}

/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (potreeViewer);

/***/ }),

/***/ "./src/potree_gui.js":
/*!***************************!*\
  !*** ./src/potree_gui.js ***!
  \***************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var itowns__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! itowns */ "./node_modules/itowns/lib/Main.js");
/* harmony import */ var dragselect__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! dragselect */ "./node_modules/dragselect/dist/DragSelect.js");
/* harmony import */ var dragselect__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(dragselect__WEBPACK_IMPORTED_MODULE_1__);
/* harmony import */ var _mouse_instructions__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./mouse-instructions */ "./src/mouse-instructions.js");





const about_text = `<b>Lidar HD © IGN - 2022<br> iTowns ${itowns__WEBPACK_IMPORTED_MODULE_0__.REVISION} - Potree 1.9</b>`;

let resolve_gui;
const gui_loaded = new Promise((r) => { resolve_gui = r; });

// IDS of mouse buttons polygons in the svg file for the mouse navigation instructions.
const IDS = {
    'left-click': 'path3209-5-5',
    'right-click': 'path3209-5-2-8',
    'middle-click': 'rect1113-3-7',
    'bottom-arrow': 'path2089-3-9',
    'top-arrow': 'path2089-5',
};
// Config for the mouse navigation instructions.
const config = [
    {
        id: IDS['left-click'],
        text: 'Déplacement',
        style: { fill: '#45a1b9' },
        title: 'Déplacez la souris avec le clique gauche enfoncé pour vous déplacer dans les données ' +
            'affichées.',
    },
    {
        id: IDS['middle-click'],
        text: 'Rotation',
        style: { fill: '#45a1b9' },
        title: 'Déplacez la souris avec le clique molette enfoncé pour pivoter autour du centre de ' +
            'l\'écran.',
    },
    {
        id: [IDS['right-click'], IDS['top-arrow'], IDS['bottom-arrow']],
        text: 'Zoom',
        style: { fill: '#45a1b9' },
        title: 'Déplacez la souris vers le haut ou le bas avec le clique droit enfoncé pour vous ' +
            'rapprocher ou vous éloigner des données affichées.',
    },
    {
        id: IDS['left-click'],
        text: 'Aller au point',
        style: {
            fill: '#45a1b9',
            text: { field: '2X', xOffset: -7, yOffset: -5, shadow: '0 0 1px black, 1px 1px 3px black' },
        },
        title: 'Pressez deux fois le clique gauche pour vous déplacer vers la position du curseur.',
    },
];

function addTranslation() {
    // TRANSLATION
    i18n.addResource('fr', 'translation', 'extract_menu.title', 'Téléchargements')
    i18n.addResource('fr', 'translation', 'extract_menu.button_download', 'Sélection à Télécharger')
    i18n.addResource('fr', 'translation', 'extract_menu.button_extract', 'Saisir une zone à extraire')
    i18n.addResource('en', 'translation', 'extract_menu.title', 'Download')
    i18n.addResource('en', 'translation', 'extract_menu.button_download', 'Selected to download')
    i18n.addResource('en', 'translation', 'extract_menu.button_extract', 'Draw zone to extract')

    i18n.addResource('fr', 'translation', 'settings.mode_simple', 'Mode simplifié');
    i18n.addResource('fr', 'translation', 'settings.mode_expert', 'Mode expert');
    i18n.addResource('en', 'translation', 'settings.mode_simple', 'Simple mode');
    i18n.addResource('en', 'translation', 'settings.mode_expert', 'Expert mode');

    i18n.addResource('fr', 'translation', 'nav_help.title', 'Aide à la navigation');
    i18n.addResource('fr', 'translation', 'simple_attribut.title', 'Attributs');
    i18n.addResource('en', 'translation', 'nav_help.title', 'Navigation help');
    i18n.addResource('en', 'translation', 'simple_attribut.title', 'Attributs');

    i18n.addResource('fr', 'translation', 'tb.rendering_opt', 'Performance');
    i18n.addResource('en', 'translation', 'tb.rendering_opt', 'Performance');

    i18n.addResource('fr', 'translation', 'appearance.nb_max_pts', 'maximum de points (diminuer pour augmenter les performances)');
    i18n.addResource('en', 'translation', 'appearance.nb_max_pts', 'maximum points (decrease to increase performances');

    i18n.addResource('fr', 'translation', 'menu_cloud.title', 'Propriété du nuage de point');
    i18n.addResource('en', 'translation', 'menu_cloud.title', 'Points properties');

    $("#potree_sidebar_container").i18n()
}

function setPotreeGui(view, potreeViewer) {
    // ######### tools menu #########
    const mTools = $("#menu_tools").next();
    mTools.show();

    // ######### Hide tools #########
    const tools = $('#tools');
    tools.find("img[data-i18n$='angle_measurement']").hide();
    tools.find("img[data-i18n$='circle_measurement']").hide();
    tools.find("img[data-i18n$='volume_measurement']").hide();
    tools.find("img[data-i18n$='annotation']").hide();
    tools.find("img[data-i18n$='Azimuth']").hide();
    // ######### tools menu : Hide clipping and navigation #########
    mTools.children().slice(3).hide();

    // ######### menu scene #########
    $("#menu_scene").next().show();

    // ######### appearance menu #########
    const mAppearance = $("#menu_appearance").next();
    mAppearance.show();
    mAppearance.find('.pv-menu-list').children().slice(1).hide();

    // #########  Menu about  #########
    $('#menu_about').next().show();
    const menu_about = $('#menu_about').next().find('.pv-menu-list')
    menu_about.children().hide();

    const about_content = $(`<li>${about_text}</li>`);
    menu_about.append(about_content);

    $.get('./html/language-selection.html').then((data_language) => {
        // #########  Rebuild language selection  #########
        const elLanguages = $('#potree_languages');
        elLanguages.empty();
        elLanguages.append($(data_language))
        const button_lg = $("#language_options_show");
        button_lg.selectgroup();

        button_lg.find("input").click( (e) => {
            potreeViewer.setLanguage(e.target.value);
            addTranslation();
            view.dispatchEvent({ type: 'translate', value: e.target.value });
        });

        button_lg.find(`input[value=fr]`).trigger("click");

        const potree_menu = $('#potree_menu');

        // ---------- Load content for simple and expert menus : ----------
        return $.get('./html/custom-potree-menus.html').then((data) => {
            const contentNoobs = $(data);
            potree_menu.prepend(contentNoobs)
            function toggleMenu() {
                let header = $(this);
                let content = $(this).next();

                header.click(() => {
                    content.slideToggle();
                });
            }
            contentNoobs.filter('h3').each(toggleMenu);

            // conserver les menus dans les 2 modes
            $('#menu_about').attr('all_mode', 'true');
            $('#menu_appearance').attr('all_mode', 'true');

            const expert_headers = potree_menu.children('h3').not('[all_mode]').not('[simple_mode]');
            const simple_headers = potree_menu.children('h3[simple_mode]');

            function show() {
                $(this).show()
                $(this).next().hide();
            }
            function hide() {
                $(this).hide()
                $(this).next().hide();
            }

            simple_headers.each(show);
            expert_headers.each(hide);

            // ---------- Add expert mode and simple mode buttons ----------

            const button_mode_simple = $('#button-mode-simple');
            const button_mode_expert = $('#button-mode-expert');

            button_mode_simple.addClass('selected');

            button_mode_simple.click(() => {
                button_mode_simple.addClass('selected');
                button_mode_expert.removeClass('selected');
                simple_headers.each(show);
                expert_headers.each(hide);
            });
            button_mode_expert.click(() => {
                button_mode_simple.removeClass('selected');
                button_mode_expert.addClass('selected');
                simple_headers.each(hide);
                expert_headers.each(show);
            });

            // ---------- NAVIGATION HELP : ----------

            $('#menu_nav_img').append((0,_mouse_instructions__WEBPACK_IMPORTED_MODULE_2__.setupMouseInstructions)('images/mouse.svg', config));

            // ---------- EXTRACTION MENU : ----------

            setupExtractionMenu(view, potreeViewer);

            // ---------- MENU PROPRIETE NUAGE DE POINTS ----------
            const pointCloud = potreeViewer.scene.scenePointCloud.children.find(c => c.name == 'pointCloud');
            const elProperties = $("#scene_object_properties_2");
            const propertiesPanel = new Potree.PropertiesPanel(elProperties, potreeViewer);
            propertiesPanel.set(pointCloud);

            addTranslation();
            resolve_gui();
        });
    });
}


function setupExtractionMenu(view, potreeViewer) {
    $('#extraction-instruction-1').prepend(
        (0,_mouse_instructions__WEBPACK_IMPORTED_MODULE_2__.getMouseVisual)('images/mouse.svg', {
            id: IDS['left-click'],
            style: { fill: '#45a1b9' },
        }),
    );
    $('#extraction-instruction-2').prepend(
        (0,_mouse_instructions__WEBPACK_IMPORTED_MODULE_2__.getMouseVisual)('images/mouse.svg', {
            id: IDS['right-click'],
            style: { fill: '#45a1b9' },
        }),
    );

    const buttonExtraction = $('#extraction-button-start');
    const buttonSelect = $('#select-button-start');
    const extractionInstruction = $('#extraction-instruction');
    const extractionSuccess = $('#extraction-success');

    let measurement;

    const onExport = (event) => {
        if (event.which === 3) {
            event.preventDefault();

            extractionInstruction.slideToggle(200);
            extractionInstruction.removeClass('active');
            $('#extraction-wait').addClass('active');


            measurement.onExport();
            buttonExtraction.click();
            view.controls.states.enabled = true;
        }
    };

    const selector = document.createElement('div')

    selector.style.position = 'absolute'
    selector.style.background = 'rgba(255, 0, 0, 0.2)'
    selector.style.border = '1.5px solid rgba(255, 0, 0, 0.8)'
    selector.style.display = 'none'
    selector.style.pointerEvents = 'none' // fix for issue #8 (ie11+)

    const ds = new (dragselect__WEBPACK_IMPORTED_MODULE_1___default())({
        area: document.getElementById('potree_render_area'),
        selector
    });

    ds.stop();

    const endSelection =  () => {
        view.controls.states.enabled = true;
        view.domElement.removeEventListener('mouseup', endSelection);
        ds.stop();
    };

    buttonSelect.click(() => {
        view.controls.states.enabled = false;
        view.domElement.addEventListener('mouseup', endSelection);
        ds.start();
    });

    buttonExtraction.click(() => {
        buttonExtraction.toggleClass('selected');

        // Hide previous success info if displayed.
        if (extractionSuccess.hasClass('active')) {
            extractionSuccess.slideToggle(200);
            extractionSuccess.removeClass('active');
        }
        // Hide previous error info if displayed.
        $('.extraction-error').removeClass('active');


        if (buttonExtraction.hasClass('selected')) {
            view.controls.states.enabled = false;

            extractionInstruction.slideToggle(200);
            extractionInstruction.addClass('active');

            measurement = potreeViewer.sidebar.measuringTool.startInsertion({
                showDistances: false,
                showArea: false,
                closed: true,
                name: 'Area',
            });

            view.domElement.addEventListener('mouseup', onExport);
        } else {
            // Hide instructions if displayed.
            if (extractionInstruction.hasClass('active')) {
                extractionInstruction.slideToggle(200);
                extractionInstruction.removeClass('active');
            }

            view.controls.states.enabled = true;
            view.domElement.removeEventListener('mouseup', onExport);
        }
    });
}


function failExtraction(error) {
    const extractionWait = $('#extraction-wait');
    // If extraction comes from simplified extraction GUI.
    if (extractionWait.hasClass('active')) {
        extractionWait.removeClass('active');
        $(`#extraction-error-${error}`).addClass('active');
    }
}


function succeedExtraction(buttonCallback) {
    const extractionWait = $('#extraction-wait');

    // If extraction comes from simplified extraction GUI.
    if (extractionWait.hasClass('active')) {
        extractionWait.removeClass('active');
        const extractionSuccess = $('#extraction-success');
        extractionSuccess.slideToggle(200);
        extractionSuccess.addClass('active');
        $('#extraction-button-download').click(buttonCallback);
    } else {
        // If extraction was performed in the expert mode.
        buttonCallback();
    }

}


function addAttributesGui(pointcloud) {
    gui_loaded.then(() => {
        const attributes = pointcloud.pcoGeometry.pointAttributes.attributes;

        let options = [];

        options.push(...attributes.map(a => a.name));

        const blacklist = [
            "POSITION_CARTESIAN",
            "position",
        ];

        options = options.filter(o => !blacklist.includes(o));

        let attributeSelection = $('#optMaterial_simple');
        for(let option of options){
            let elOption = $(`<option>${option}</option>`);
            attributeSelection.append(elOption);
        }

        let material = pointcloud.material;
        let updateMaterialPanel = (event, ui) => {
            let selectedValue = attributeSelection.selectmenu().val();
            material.activeAttributeName = selectedValue;
        };

        attributeSelection.selectmenu({change: updateMaterialPanel});
    });
}

function addButtonExport() {
    let tree = $('#jstree_scene');
    tree.on("select_node.jstree", (e, data) => {
        let object = data.node.data;
        const measurement_area = $('#measurement_area');
        const panelArea = $('#measurement_area').parent();
        const exportButton = panelArea.find("#area_export")[0];
        if(!exportButton && measurement_area[0]) {
            const content = $(`
                <li style="display: grid; grid-template-columns: auto auto; grid-column-gap: 5px; margin-top: 10px">
                        <input id="area_export" type="button" value="export"/>
                </li>
            `);
            panelArea.append(content);

            panelArea.find("#area_export").click(() => {
                if (object.onExport) {
                    object.onExport();
                }
            });
        }
    });
}


function setupTerrainVisibility(view, callback) {
    const tree = $(`#jstree_scene`);

    tree.on("uncheck_node.jstree", (e, data) => {
        if (data.node.data?.isTiledGeometryLayer) {
            callback(false);
        }
    });

    tree.on("check_node.jstree", (e, data) => {
        if (data.node.data?.isTiledGeometryLayer) {
            callback(true);
        }
    });

    const terrain = tree.jstree('create_node', "other", {
            "text": "Terrain",
            "icon": `${Potree.resourcePath}/icons/earth_controls.svg`,
            "data": view.tileLayer
        },
        "last", false, false);
    tree.jstree(view.tileLayer.visible ? "check_node" : "uncheck_node", terrain);
}


/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
    setPotreeGui,
    addAttributesGui,
    addButtonExport,
    setupTerrainVisibility,
    failExtraction,
    succeedExtraction,
});

/***/ }),

/***/ "./src/sig_3d.js":
/*!***********************!*\
  !*** ./src/sig_3d.js ***!
  \***********************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var itowns__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! itowns */ "./node_modules/itowns/lib/Main.js");
/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js");
/* harmony import */ var _widgets__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./widgets */ "./src/widgets.js");
/* harmony import */ var _loading_screen__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./loading-screen */ "./src/loading-screen.js");





const loadingScreen = new _loading_screen__WEBPACK_IMPORTED_MODULE_2__["default"]({ hidingTimeout: 10000, });

itowns__WEBPACK_IMPORTED_MODULE_0__.CRS.defs(
    "EPSG:2154",
    "+proj=lcc +lat_1=49 +lat_2=44 +lat_0=46.5 +lon_0=3 +x_0=700000 +y_0=6600000 +ellps=GRS80 " +
    "+towgs84=0,0,0,0,0,0,0 +units=m +no_defs",
);

// ---------- CREATE A GlobeView FOR SUPPORTING CONTEXTUAL DATA VISUALIZATION : ------------------------------------

function globeView(potreeViewer) {
	const viewerDiv = document.getElementById("potree_render_area");

	// Define camera initial position.
	const placement = {
	    coord: new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates('EPSG:4326', 0, 0, 0),
	    range: 5000000,
	    tilt: 23,
	}

	// Create a GlobeView.
	const view = new itowns__WEBPACK_IMPORTED_MODULE_0__.GlobeView(viewerDiv, placement, {
	    renderer: potreeViewer.renderer,
	    scene3D: potreeViewer.scene.scene,
	});

	// Make atmosphere realistic.
	const atmosphere = view.getLayerById('atmosphere');
	atmosphere.setRealisticOn(true);
	// fix a bug in the atmosphere ( the ground object making a big halo).
	atmosphere.realisticAtmosphere.children[0].visible = false;

	// controls and camera specific setting.
	view.controls.dampingMoveFactor = 0.9;
	view.controls.minDistanceCollision = 0;
	view.controls.minDistance = 20;
	view.camera.camera3D.near = 0.1;
	view.tileLayer.display = true;

	    // ---------- WIDGETS AND LOADING SCREEN : -------------------------------------------------------------------------

    // Add widgets.
    _widgets__WEBPACK_IMPORTED_MODULE_1__["default"].setWidgets(view);

    // Bind loading screen to iTowns viewer.
    loadingScreen.hideLoadingScreenOn(view, itowns__WEBPACK_IMPORTED_MODULE_0__.GLOBE_VIEW_EVENTS.GLOBE_INITIALIZED);



    // ---------- DEFINE CUSTOM CONTROLS : -----------------------------------------------------------------------------

    const customControls = {
        PAN: {  // Disable pan movement.
            enable: false,
        },
        MOVE_GLOBE: {  // Change the key bindings for globe rotation.
            enable: true,
            mouseButton: three__WEBPACK_IMPORTED_MODULE_3__.MOUSE.LEFT,
        },
        ORBIT: {  // Change the key bindings for orbit movement (rotation around the camera target).
            enable: true,
            mouseButton: three__WEBPACK_IMPORTED_MODULE_3__.MOUSE.MIDDLE,
        },
        DOLLY: {  // Change the key bindings for dolly movement.
            enable: true,
            mouseButton: three__WEBPACK_IMPORTED_MODULE_3__.MOUSE.RIGHT,
        },
        PANORAMIC: {  // Change the key bindings for panoramic movement (rotation around the camera position).
            enable: true,
            mouseButton: three__WEBPACK_IMPORTED_MODULE_3__.MOUSE.LEFT,
            keyboard: 17,  // keyCode for the ctrl key.
        },
        TRAVEL_OUT: {  // Allow travel out movement when double right-clicking.
            enable: true,
            mouseButton: three__WEBPACK_IMPORTED_MODULE_3__.MOUSE.RIGHT,
            double: true,
        },
    };

    // Modify view's control to be set as the custom controls we just defined
    view.controls.states.setFromOptions(customControls);

    // ---------- TWEAK ITOWNS VIEWER TO SUPPORT POTREE VISUALIZATION : ------------------------------------------------

    view.render = () => {
        // Labels rendering :
        view.mainLoop.gfxEngine.label2dRenderer.render(view.scene, view.camera.camera3D);
    };

    // Force the view to resize when changing #potree_render_area div size.
    // This allows view resizing when toggling potree menu.
    new ResizeObserver(() => view.resize()).observe(viewerDiv);

    // Set Potree viewer camera as iTowns viewer camera.
    view.camera.camera3D.zoomTo = () => {};

    // Prevent pointer events on labels container div.
    view.mainLoop.gfxEngine.label2dRenderer.domElement.style['pointer-events'] = 'none';


    // ---------- DISPLAY CONTEXTUAL DATA USING ITOWNS : ---------------------------------------------------------------

    // Add an imagery layer to the scene.
    itowns__WEBPACK_IMPORTED_MODULE_0__.Fetcher.json('./libs/itowns/layers/JSONLayers/Ortho.json').then(function _(config) {
        config.source = new itowns__WEBPACK_IMPORTED_MODULE_0__.WMTSSource(config.source);
        config.source.zoom = { max: 19, min: 3 };
        view.addLayer(
            new itowns__WEBPACK_IMPORTED_MODULE_0__.ColorLayer(config.id, config)
        );
    });

    // Add two elevation layers.
     function addElevationLayerFromConfig(config) {
        config.source = new itowns__WEBPACK_IMPORTED_MODULE_0__.WMTSSource(config.source);
        view.addLayer(
            new itowns__WEBPACK_IMPORTED_MODULE_0__.ElevationLayer(config.id, config)
        );
    }
    itowns__WEBPACK_IMPORTED_MODULE_0__.Fetcher.json('./libs/itowns/layers/JSONLayers/WORLD_DTM.json').then(addElevationLayerFromConfig);
    itowns__WEBPACK_IMPORTED_MODULE_0__.Fetcher.json('./libs/itowns/layers/JSONLayers/IGN_MNT_HIGHRES.json').then(addElevationLayerFromConfig);

    // Add a Vector Tile layer to display places names
    view.addLayer(new itowns__WEBPACK_IMPORTED_MODULE_0__.LabelLayer('Toponymes', {
        margin: 20,
        source: new itowns__WEBPACK_IMPORTED_MODULE_0__.VectorTilesSource({
            style: 'https://wxs.ign.fr/essentiels/static/vectorTiles/styles/PLAN.IGN/standard.json',
            filter: (layer) => {
                if (layer.id === 'toponyme - parcellaire - parcelle' ||
                    layer.id === 'toponyme - parcellaire - adresse') {
                    return false;
                }
                if(layer.paint) {
                    if (layer.paint['text-halo-color']) {
                        layer.paint['text-halo-color'] = 'rgba(240,240,240,0.8)';
                    }
                    if (layer.paint['text-halo-width']) {
                        layer.paint['text-halo-width'] += 2;
                    }
                }
                return true;
            },
            zoom: { max: 19, min: 3 },
        }),
    }));

	return view;
}

/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (globeView);

/***/ }),

/***/ "./src/widgets.js":
/*!************************!*\
  !*** ./src/widgets.js ***!
  \************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js");
/* harmony import */ var itowns__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! itowns */ "./node_modules/itowns/lib/Main.js");
/* harmony import */ var itowns_widgets__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! itowns/widgets */ "./node_modules/itowns/lib/Utils/gui/Main.js");




const TRANSLATE_OPTIONS = {
    en: {
        compass: 'Rotate the camera to face North',
        toggle3D: 'Tilt the camera',
        zoomIn: 'Zoom in',
        zoomOut: 'Zoom out',
        help: 'Show help',
        centerButton: 'Center camera on point cloud',
        searchbar: 'Search a location in France',
    },
    fr: {
        compass: 'Orienter la caméra vers le Nord',
        toggle3D: 'Incliner la caméra',
        zoomIn: 'Zoomer',
        zoomOut: 'Dézoomer',
        help: 'Aide',
        centerButton: 'Centrer la caméra sur le nuage de points',
        searchbar: 'Chercher un lieu en France',
    },
};


let navigation;
let itownsViewer;


function setWidgets(view) {
    itownsViewer = view;



    // ---------- ADD NAVIGATION WIDGET : ----------

    navigation = new itowns_widgets__WEBPACK_IMPORTED_MODULE_1__.Navigation(view, {
        position: 'bottom-right',
    });

    const help = navigation.addButton(
        'Aide', 
        '?', 
        TRANSLATE_OPTIONS.en.help, 
        () => $("#dialog").dialog(), 
        'button-bar'
    );



    // ---------- ADD MINIMAP WIDGET : ----------

    // Create a ColorLayer that shall be displayed on the minimap.
    const minimapColorLayer = new itowns__WEBPACK_IMPORTED_MODULE_0__.ColorLayer('minimap-background', {
        source: new itowns__WEBPACK_IMPORTED_MODULE_0__.VectorTilesSource({
            style: 'https://wxs.ign.fr/essentiels/static/vectorTiles/styles/PLAN.IGN/gris.json',
            // We don't display mountains and plot related data to ease visualisation
            filter: (layer) => !layer['source-layer'].includes('oro_')
                && !layer['source-layer'].includes('parcellaire'),
        }),
        addLabelLayer: true,
    });

    const cloudExtent = new itowns__WEBPACK_IMPORTED_MODULE_0__.ColorLayer('point-cloud-extent', {
        source: new itowns__WEBPACK_IMPORTED_MODULE_0__.FileSource({
            url: './emprise_NP.geojson',
            format: 'application/json',
            crs: 'EPSG:4326',
        }),
        style: new itowns__WEBPACK_IMPORTED_MODULE_0__.Style({
            fill: {
                color: '#497885',
                opacity: 0.5,
            },
            stroke: {
                color: '#497885',
            },
        }),
        transparent: true,
        accurate: true,
    });

    // Create a minimap.
    const minimap = new itowns_widgets__WEBPACK_IMPORTED_MODULE_1__.Minimap(view, minimapColorLayer, {
        cursor: '⊙',
        size: 200,
    });

    // Display the point cloud extent on the minimap.
    minimap.view.addLayer(cloudExtent);

    // Add interaction with minimap : travel to cursor location when double-clicking.
    const cursorCoordinates = new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates(minimap.view.referenceCrs);
    minimap.domElement.addEventListener('dblclick', (event) => {
        minimap.view.pickCoordinates(event, cursorCoordinates);
        view.controls.lookAtCoordinate({ coord: cursorCoordinates, time: 800 });
    });



    // ---------- ADD A SEARCHBAR : ----------

    const geocodingOptions = {
        url: new URL(
            'https://wxs.ign.fr/ayxvok72rcocdyn8xyvy32og/ols/apis/completion?text=&type=StreetAddress,' +
            'PositionOfInterest',
        ),
        "parser": (response) => {
            const map = new Map();
            response.results.forEach(location => {
                map.set(location.fulltext, {
                    coord: new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates('EPSG:4326', location.x, location.y),
                    classification: location.classification,
                });
            });
            return map;
        },
        "onSelected": (info) => {
            view.controls.lookAtCoordinate({
                coord: info.coord,
                range: 20000 / info.classification,
                tilt: 45,
                heading: 0,
            });
        },
    };

    const searchbar = new itowns_widgets__WEBPACK_IMPORTED_MODULE_1__.Searchbar(view, geocodingOptions, {
        maxSuggestionNumber: 15,
        position: 'top-right',
    });



    // ---------- TRANSLATE WIDGETS CONTENT WHEN TRANSLATING POTREE SIDEBAR : ----------

    view.addEventListener('translate', (event) => {
        switch (event.value) {
            case 'fr':
                navigation.compass.title = TRANSLATE_OPTIONS.fr.compass;
                navigation.toggle3D.title = TRANSLATE_OPTIONS.fr.toggle3D;
                navigation.zoomIn.title = TRANSLATE_OPTIONS.fr.zoomIn;
                navigation.zoomOut.title = TRANSLATE_OPTIONS.fr.zoomOut;
                help.title = TRANSLATE_OPTIONS.fr.help;
                document.getElementById('searchbar-autocompletion-form').children[0].setAttribute(
                    'placeholder', TRANSLATE_OPTIONS.fr.searchbar,
                );
                break;
            case 'en':
            default:
                navigation.compass.title = TRANSLATE_OPTIONS.en.compass;
                navigation.toggle3D.title = TRANSLATE_OPTIONS.en.toggle3D;
                navigation.zoomIn.title = TRANSLATE_OPTIONS.en.zoomIn;
                navigation.zoomOut.title = TRANSLATE_OPTIONS.en.zoomOut;
                help.title = TRANSLATE_OPTIONS.en.help;
                document.getElementById('searchbar-autocompletion-form').children[0].setAttribute(
                    'placeholder', TRANSLATE_OPTIONS.en.searchbar,
                );
                break;
        }
    });


    // ---------- CURSOR COORDINATES : ----------
    const setText = (lon, lat, alt) => {
        $('#cursor-lon').text(lon ?? '---------');
        $('#cursor-lat').text(lat ?? '---------');
        $('#cursor-alt').text(alt ?? '---');
    };
    const cursorWorldPosition = new three__WEBPACK_IMPORTED_MODULE_2__.Vector3();
    const coordinatesView = new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates(view.referenceCrs);
    const coordinates4326 = new itowns__WEBPACK_IMPORTED_MODULE_0__.Coordinates('EPSG:4326');
    view.domElement.addEventListener('mousemove', (event) => {
        // Don't update coordinates if user is moving to prevent freezes.
        if (view.controls.states.currentState === view.controls.states.NONE) {
            if (view.getPickingPositionFromDepth(view.eventToViewCoords(event), cursorWorldPosition)) {
                coordinatesView.setFromVector3(cursorWorldPosition).as('EPSG:4326', coordinates4326)
                setText(
                    `${coordinates4326.longitude.toFixed(6)}°`,
                    `${coordinates4326.latitude.toFixed(6)}°`,
                    `${coordinates4326.altitude.toFixed(1)} m`,
                );
            } else { setText(); }
        }
    });
    view.domElement.addEventListener('mouseleave', () => { setText(); });

}


function setCenterButton(centerPosition) {
    const centerButton = navigation.addButton(
        'Center',
        '⊚', 
        TRANSLATE_OPTIONS.en.centerButton,
        () => itownsViewer.controls.lookAtCoordinate(centerPosition),
        'button-bar',
    );

    itownsViewer.addEventListener('translate', (event) => {
        switch (event.value) {
            case 'fr':
                centerButton.title = TRANSLATE_OPTIONS.fr.centerButton;
                break;
            case 'en':
            default:
                centerButton.title = TRANSLATE_OPTIONS.en.centerButton;
                break;
        }
    });
}


/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
    setWidgets,
    setCenterButton,
});


/***/ }),

/***/ "?4515":
/*!********************!*\
  !*** fs (ignored) ***!
  \********************/
/***/ (() => {

/* (ignored) */

/***/ }),

/***/ "?418a":
/*!**********************!*\
  !*** path (ignored) ***!
  \**********************/
/***/ (() => {

/* (ignored) */

/***/ }),

/***/ "?2039":
/*!***************************************!*\
  !*** ./encoding-indexes.js (ignored) ***!
  \***************************************/
/***/ (() => {

/* (ignored) */

/***/ }),

/***/ "./node_modules/@mapbox/mapbox-gl-style-spec/dist/index.cjs":
/*!******************************************************************!*\
  !*** ./node_modules/@mapbox/mapbox-gl-style-spec/dist/index.cjs ***!
  \******************************************************************/
/***/ (function(__unused_webpack_module, exports, __webpack_require__) {

(function (global, factory) {
   true ? factory(exports) :
  0;
}(this, (function (exports) { 'use strict';

  var $version = 8;
  var $root = {
  	version: {
  		required: true,
  		type: "enum",
  		values: [
  			8
  		],
  		doc: "Style specification version number. Must be 8.",
  		example: 8
  	},
  	name: {
  		type: "string",
  		doc: "A human-readable name for the style.",
  		example: "Bright"
  	},
  	metadata: {
  		type: "*",
  		doc: "Arbitrary properties useful to track with the stylesheet, but do not influence rendering. Properties should be prefixed to avoid collisions, like 'mapbox:'."
  	},
  	center: {
  		type: "array",
  		value: "number",
  		doc: "Default map center in longitude and latitude.  The style center will be used only if the map has not been positioned by other means (e.g. map options or user interaction).",
  		example: [
  			-73.9749,
  			40.7736
  		]
  	},
  	zoom: {
  		type: "number",
  		doc: "Default zoom level.  The style zoom will be used only if the map has not been positioned by other means (e.g. map options or user interaction).",
  		example: 12.5
  	},
  	bearing: {
  		type: "number",
  		"default": 0,
  		period: 360,
  		units: "degrees",
  		doc: "Default bearing, in degrees. The bearing is the compass direction that is \"up\"; for example, a bearing of 90° orients the map so that east is up. This value will be used only if the map has not been positioned by other means (e.g. map options or user interaction).",
  		example: 29
  	},
  	pitch: {
  		type: "number",
  		"default": 0,
  		units: "degrees",
  		doc: "Default pitch, in degrees. Zero is perpendicular to the surface, for a look straight down at the map, while a greater value like 60 looks ahead towards the horizon. The style pitch will be used only if the map has not been positioned by other means (e.g. map options or user interaction).",
  		example: 50
  	},
  	light: {
  		type: "light",
  		doc: "The global light source.",
  		example: {
  			anchor: "viewport",
  			color: "white",
  			intensity: 0.4
  		}
  	},
  	terrain: {
  		type: "terrain",
  		doc: "A global modifier that elevates layers and markers based on a DEM data source."
  	},
  	fog: {
  		type: "fog",
  		doc: "A global effect that fades layers and markers based on their distance to the camera. The fog can be used to approximate the effect of atmosphere on distant objects and enhance the depth perception of the map when used with terrain or 3D features."
  	},
  	sources: {
  		required: true,
  		type: "sources",
  		doc: "Data source specifications.",
  		example: {
  			"mapbox-streets": {
  				type: "vector",
  				url: "mapbox://mapbox.mapbox-streets-v6"
  			}
  		}
  	},
  	sprite: {
  		type: "string",
  		doc: "A base URL for retrieving the sprite image and metadata. The extensions `.png`, `.json` and scale factor `@2x.png` will be automatically appended. This property is required if any layer uses the `background-pattern`, `fill-pattern`, `line-pattern`, `fill-extrusion-pattern`, or `icon-image` properties. The URL must be absolute, containing the [scheme, authority and path components](https://en.wikipedia.org/wiki/URL#Syntax).",
  		example: "mapbox://sprites/mapbox/bright-v8"
  	},
  	glyphs: {
  		type: "string",
  		doc: "A URL template for loading signed-distance-field glyph sets in PBF format. The URL must include `{fontstack}` and `{range}` tokens. This property is required if any layer uses the `text-field` layout property. The URL must be absolute, containing the [scheme, authority and path components](https://en.wikipedia.org/wiki/URL#Syntax).",
  		example: "mapbox://fonts/mapbox/{fontstack}/{range}.pbf"
  	},
  	transition: {
  		type: "transition",
  		doc: "A global transition definition to use as a default across properties, to be used for timing transitions between one value and the next when no property-specific transition is set. Collision-based symbol fading is controlled independently of the style's `transition` property.",
  		example: {
  			duration: 300,
  			delay: 0
  		}
  	},
  	projection: {
  		type: "projection",
  		doc: "The projection the map should be rendered in. Supported projections are Albers, Equal Earth, Equirectangular (WGS84), Lambert conformal conic, Mercator, Natural Earth, and Winkel Tripel. Terrain, fog, sky and CustomLayerInterface are not supported for projections other than mercator.",
  		example: {
  			name: "albers",
  			center: [
  				-154,
  				50
  			],
  			parallels: [
  				55,
  				65
  			]
  		}
  	},
  	layers: {
  		required: true,
  		type: "array",
  		value: "layer",
  		doc: "Layers will be drawn in the order of this array.",
  		example: [
  			{
  				id: "water",
  				source: "mapbox-streets",
  				"source-layer": "water",
  				type: "fill",
  				paint: {
  					"fill-color": "#00ffff"
  				}
  			}
  		]
  	}
  };
  var sources = {
  	"*": {
  		type: "source",
  		doc: "Specification of a data source. For vector and raster sources, either TileJSON or a URL to a TileJSON must be provided. For image and video sources, a URL must be provided. For GeoJSON sources, a URL or inline GeoJSON must be provided."
  	}
  };
  var source = [
  	"source_vector",
  	"source_raster",
  	"source_raster_dem",
  	"source_geojson",
  	"source_video",
  	"source_image"
  ];
  var source_vector = {
  	type: {
  		required: true,
  		type: "enum",
  		values: {
  			vector: {
  				doc: "A vector tile source."
  			}
  		},
  		doc: "The type of the source."
  	},
  	url: {
  		type: "string",
  		doc: "A URL to a TileJSON resource. Supported protocols are `http:`, `https:`, and `mapbox://<Tileset ID>`."
  	},
  	tiles: {
  		type: "array",
  		value: "string",
  		doc: "An array of one or more tile source URLs, as in the TileJSON spec."
  	},
  	bounds: {
  		type: "array",
  		value: "number",
  		length: 4,
  		"default": [
  			-180,
  			-85.051129,
  			180,
  			85.051129
  		],
  		doc: "An array containing the longitude and latitude of the southwest and northeast corners of the source's bounding box in the following order: `[sw.lng, sw.lat, ne.lng, ne.lat]`. When this property is included in a source, no tiles outside of the given bounds are requested by Mapbox GL."
  	},
  	scheme: {
  		type: "enum",
  		values: {
  			xyz: {
  				doc: "Slippy map tilenames scheme."
  			},
  			tms: {
  				doc: "OSGeo spec scheme."
  			}
  		},
  		"default": "xyz",
  		doc: "Influences the y direction of the tile coordinates. The global-mercator (aka Spherical Mercator) profile is assumed."
  	},
  	minzoom: {
  		type: "number",
  		"default": 0,
  		doc: "Minimum zoom level for which tiles are available, as in the TileJSON spec."
  	},
  	maxzoom: {
  		type: "number",
  		"default": 22,
  		doc: "Maximum zoom level for which tiles are available, as in the TileJSON spec. Data from tiles at the maxzoom are used when displaying the map at higher zoom levels."
  	},
  	attribution: {
  		type: "string",
  		doc: "Contains an attribution to be displayed when the map is shown to a user."
  	},
  	promoteId: {
  		type: "promoteId",
  		doc: "A property to use as a feature id (for feature state). Either a property name, or an object of the form `{<sourceLayer>: <propertyName>}`. If specified as a string for a vector tile source, the same property is used across all its source layers."
  	},
  	volatile: {
  		type: "boolean",
  		"default": false,
  		doc: "A setting to determine whether a source's tiles are cached locally.",
  		"sdk-support": {
  			"basic functionality": {
  				android: "9.3.0",
  				ios: "5.10.0"
  			}
  		}
  	},
  	"*": {
  		type: "*",
  		doc: "Other keys to configure the data source."
  	}
  };
  var source_raster = {
  	type: {
  		required: true,
  		type: "enum",
  		values: {
  			raster: {
  				doc: "A raster tile source."
  			}
  		},
  		doc: "The type of the source."
  	},
  	url: {
  		type: "string",
  		doc: "A URL to a TileJSON resource. Supported protocols are `http:`, `https:`, and `mapbox://<Tileset ID>`."
  	},
  	tiles: {
  		type: "array",
  		value: "string",
  		doc: "An array of one or more tile source URLs, as in the TileJSON spec."
  	},
  	bounds: {
  		type: "array",
  		value: "number",
  		length: 4,
  		"default": [
  			-180,
  			-85.051129,
  			180,
  			85.051129
  		],
  		doc: "An array containing the longitude and latitude of the southwest and northeast corners of the source's bounding box in the following order: `[sw.lng, sw.lat, ne.lng, ne.lat]`. When this property is included in a source, no tiles outside of the given bounds are requested by Mapbox GL."
  	},
  	minzoom: {
  		type: "number",
  		"default": 0,
  		doc: "Minimum zoom level for which tiles are available, as in the TileJSON spec."
  	},
  	maxzoom: {
  		type: "number",
  		"default": 22,
  		doc: "Maximum zoom level for which tiles are available, as in the TileJSON spec. Data from tiles at the maxzoom are used when displaying the map at higher zoom levels."
  	},
  	tileSize: {
  		type: "number",
  		"default": 512,
  		units: "pixels",
  		doc: "The minimum visual size to display tiles for this layer. Only configurable for raster layers."
  	},
  	scheme: {
  		type: "enum",
  		values: {
  			xyz: {
  				doc: "Slippy map tilenames scheme."
  			},
  			tms: {
  				doc: "OSGeo spec scheme."
  			}
  		},
  		"default": "xyz",
  		doc: "Influences the y direction of the tile coordinates. The global-mercator (aka Spherical Mercator) profile is assumed."
  	},
  	attribution: {
  		type: "string",
  		doc: "Contains an attribution to be displayed when the map is shown to a user."
  	},
  	volatile: {
  		type: "boolean",
  		"default": false,
  		doc: "A setting to determine whether a source's tiles are cached locally.",
  		"sdk-support": {
  			"basic functionality": {
  				android: "9.3.0",
  				ios: "5.10.0"
  			}
  		}
  	},
  	"*": {
  		type: "*",
  		doc: "Other keys to configure the data source."
  	}
  };
  var source_raster_dem = {
  	type: {
  		required: true,
  		type: "enum",
  		values: {
  			"raster-dem": {
  				doc: "A RGB-encoded raster DEM source"
  			}
  		},
  		doc: "The type of the source."
  	},
  	url: {
  		type: "string",
  		doc: "A URL to a TileJSON resource. Supported protocols are `http:`, `https:`, and `mapbox://<Tileset ID>`."
  	},
  	tiles: {
  		type: "array",
  		value: "string",
  		doc: "An array of one or more tile source URLs, as in the TileJSON spec."
  	},
  	bounds: {
  		type: "array",
  		value: "number",
  		length: 4,
  		"default": [
  			-180,
  			-85.051129,
  			180,
  			85.051129
  		],
  		doc: "An array containing the longitude and latitude of the southwest and northeast corners of the source's bounding box in the following order: `[sw.lng, sw.lat, ne.lng, ne.lat]`. When this property is included in a source, no tiles outside of the given bounds are requested by Mapbox GL."
  	},
  	minzoom: {
  		type: "number",
  		"default": 0,
  		doc: "Minimum zoom level for which tiles are available, as in the TileJSON spec."
  	},
  	maxzoom: {
  		type: "number",
  		"default": 22,
  		doc: "Maximum zoom level for which tiles are available, as in the TileJSON spec. Data from tiles at the maxzoom are used when displaying the map at higher zoom levels."
  	},
  	tileSize: {
  		type: "number",
  		"default": 512,
  		units: "pixels",
  		doc: "The minimum visual size to display tiles for this layer. Only configurable for raster layers."
  	},
  	attribution: {
  		type: "string",
  		doc: "Contains an attribution to be displayed when the map is shown to a user."
  	},
  	encoding: {
  		type: "enum",
  		values: {
  			terrarium: {
  				doc: "Terrarium format PNG tiles. See https://aws.amazon.com/es/public-datasets/terrain/ for more info."
  			},
  			mapbox: {
  				doc: "Mapbox Terrain RGB tiles. See https://www.mapbox.com/help/access-elevation-data/#mapbox-terrain-rgb for more info."
  			}
  		},
  		"default": "mapbox",
  		doc: "The encoding used by this source. Mapbox Terrain RGB is used by default"
  	},
  	volatile: {
  		type: "boolean",
  		"default": false,
  		doc: "A setting to determine whether a source's tiles are cached locally.",
  		"sdk-support": {
  			"basic functionality": {
  				android: "9.3.0",
  				ios: "5.10.0"
  			}
  		}
  	},
  	"*": {
  		type: "*",
  		doc: "Other keys to configure the data source."
  	}
  };
  var source_geojson = {
  	type: {
  		required: true,
  		type: "enum",
  		values: {
  			geojson: {
  				doc: "A GeoJSON data source."
  			}
  		},
  		doc: "The data type of the GeoJSON source."
  	},
  	data: {
  		type: "*",
  		doc: "A URL to a GeoJSON file, or inline GeoJSON."
  	},
  	maxzoom: {
  		type: "number",
  		"default": 18,
  		doc: "Maximum zoom level at which to create vector tiles (higher means greater detail at high zoom levels)."
  	},
  	attribution: {
  		type: "string",
  		doc: "Contains an attribution to be displayed when the map is shown to a user."
  	},
  	buffer: {
  		type: "number",
  		"default": 128,
  		maximum: 512,
  		minimum: 0,
  		doc: "Size of the tile buffer on each side. A value of 0 produces no buffer. A value of 512 produces a buffer as wide as the tile itself. Larger values produce fewer rendering artifacts near tile edges and slower performance."
  	},
  	filter: {
  		type: "*",
  		doc: "An expression for filtering features prior to processing them for rendering."
  	},
  	tolerance: {
  		type: "number",
  		"default": 0.375,
  		doc: "Douglas-Peucker simplification tolerance (higher means simpler geometries and faster performance)."
  	},
  	cluster: {
  		type: "boolean",
  		"default": false,
  		doc: "If the data is a collection of point features, setting this to true clusters the points by radius into groups. Cluster groups become new `Point` features in the source with additional properties:\n * `cluster` Is `true` if the point is a cluster \n * `cluster_id` A unqiue id for the cluster to be used in conjunction with the [cluster inspection methods](https://www.mapbox.com/mapbox-gl-js/api/#geojsonsource#getclusterexpansionzoom)\n * `point_count` Number of original points grouped into this cluster\n * `point_count_abbreviated` An abbreviated point count"
  	},
  	clusterRadius: {
  		type: "number",
  		"default": 50,
  		minimum: 0,
  		doc: "Radius of each cluster if clustering is enabled. A value of 512 indicates a radius equal to the width of a tile."
  	},
  	clusterMaxZoom: {
  		type: "number",
  		doc: "Max zoom on which to cluster points if clustering is enabled. Defaults to one zoom less than maxzoom (so that last zoom features are not clustered). Clusters are re-evaluated at integer zoom levels so setting clusterMaxZoom to 14 means the clusters will be displayed until z15."
  	},
  	clusterMinPoints: {
  		type: "number",
  		doc: "Minimum number of points necessary to form a cluster if clustering is enabled. Defaults to `2`."
  	},
  	clusterProperties: {
  		type: "*",
  		doc: "An object defining custom properties on the generated clusters if clustering is enabled, aggregating values from clustered points. Has the form `{\"property_name\": [operator, map_expression]}`. `operator` is any expression function that accepts at least 2 operands (e.g. `\"+\"` or `\"max\"`) — it accumulates the property value from clusters/points the cluster contains; `map_expression` produces the value of a single point.\n\nExample: `{\"sum\": [\"+\", [\"get\", \"scalerank\"]]}`.\n\nFor more advanced use cases, in place of `operator`, you can use a custom reduce expression that references a special `[\"accumulated\"]` value, e.g.:\n`{\"sum\": [[\"+\", [\"accumulated\"], [\"get\", \"sum\"]], [\"get\", \"scalerank\"]]}`"
  	},
  	lineMetrics: {
  		type: "boolean",
  		"default": false,
  		doc: "Whether to calculate line distance metrics. This is required for line layers that specify `line-gradient` values."
  	},
  	generateId: {
  		type: "boolean",
  		"default": false,
  		doc: "Whether to generate ids for the geojson features. When enabled, the `feature.id` property will be auto assigned based on its index in the `features` array, over-writing any previous values."
  	},
  	promoteId: {
  		type: "promoteId",
  		doc: "A property to use as a feature id (for feature state). Either a property name, or an object of the form `{<sourceLayer>: <propertyName>}`."
  	}
  };
  var source_video = {
  	type: {
  		required: true,
  		type: "enum",
  		values: {
  			video: {
  				doc: "A video data source."
  			}
  		},
  		doc: "The data type of the video source."
  	},
  	urls: {
  		required: true,
  		type: "array",
  		value: "string",
  		doc: "URLs to video content in order of preferred format."
  	},
  	coordinates: {
  		required: true,
  		doc: "Corners of video specified in longitude, latitude pairs.",
  		type: "array",
  		length: 4,
  		value: {
  			type: "array",
  			length: 2,
  			value: "number",
  			doc: "A single longitude, latitude pair."
  		}
  	}
  };
  var source_image = {
  	type: {
  		required: true,
  		type: "enum",
  		values: {
  			image: {
  				doc: "An image data source."
  			}
  		},
  		doc: "The data type of the image source."
  	},
  	url: {
  		required: true,
  		type: "string",
  		doc: "URL that points to an image."
  	},
  	coordinates: {
  		required: true,
  		doc: "Corners of image specified in longitude, latitude pairs.",
  		type: "array",
  		length: 4,
  		value: {
  			type: "array",
  			length: 2,
  			value: "number",
  			doc: "A single longitude, latitude pair."
  		}
  	}
  };
  var layer = {
  	id: {
  		type: "string",
  		doc: "Unique layer name.",
  		required: true
  	},
  	type: {
  		type: "enum",
  		values: {
  			fill: {
  				doc: "A filled polygon with an optional stroked border.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "0.10.0",
  						android: "2.0.1",
  						ios: "2.0.0",
  						macos: "0.1.0"
  					}
  				}
  			},
  			line: {
  				doc: "A stroked line.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "0.10.0",
  						android: "2.0.1",
  						ios: "2.0.0",
  						macos: "0.1.0"
  					}
  				}
  			},
  			symbol: {
  				doc: "An icon or a text label.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "0.10.0",
  						android: "2.0.1",
  						ios: "2.0.0",
  						macos: "0.1.0"
  					}
  				}
  			},
  			circle: {
  				doc: "A filled circle.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "0.10.0",
  						android: "2.0.1",
  						ios: "2.0.0",
  						macos: "0.1.0"
  					}
  				}
  			},
  			heatmap: {
  				doc: "A heatmap.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "0.41.0",
  						android: "6.0.0",
  						ios: "4.0.0",
  						macos: "0.7.0"
  					}
  				}
  			},
  			"fill-extrusion": {
  				doc: "An extruded (3D) polygon.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "0.27.0",
  						android: "5.1.0",
  						ios: "3.6.0",
  						macos: "0.5.0"
  					}
  				}
  			},
  			raster: {
  				doc: "Raster map textures such as satellite imagery.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "0.10.0",
  						android: "2.0.1",
  						ios: "2.0.0",
  						macos: "0.1.0"
  					}
  				}
  			},
  			hillshade: {
  				doc: "Client-side hillshading visualization based on DEM data. Currently, the implementation only supports Mapbox Terrain RGB and Mapzen Terrarium tiles.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "0.43.0",
  						android: "6.0.0",
  						ios: "4.0.0",
  						macos: "0.7.0"
  					}
  				}
  			},
  			background: {
  				doc: "The background color or pattern of the map.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "0.10.0",
  						android: "2.0.1",
  						ios: "2.0.0",
  						macos: "0.1.0"
  					}
  				}
  			},
  			sky: {
  				doc: "A spherical dome around the map that is always rendered behind all other layers.",
  				"sdk-support": {
  					"basic functionality": {
  						js: "2.0.0",
  						ios: "10.0.0",
  						android: "10.0.0"
  					}
  				}
  			}
  		},
  		doc: "Rendering type of this layer.",
  		required: true
  	},
  	metadata: {
  		type: "*",
  		doc: "Arbitrary properties useful to track with the layer, but do not influence rendering. Properties should be prefixed to avoid collisions, like 'mapbox:'."
  	},
  	source: {
  		type: "string",
  		doc: "Name of a source description to be used for this layer. Required for all layer types except `background`."
  	},
  	"source-layer": {
  		type: "string",
  		doc: "Layer to use from a vector tile source. Required for vector tile sources; prohibited for all other source types, including GeoJSON sources."
  	},
  	minzoom: {
  		type: "number",
  		minimum: 0,
  		maximum: 24,
  		doc: "The minimum zoom level for the layer. At zoom levels less than the minzoom, the layer will be hidden."
  	},
  	maxzoom: {
  		type: "number",
  		minimum: 0,
  		maximum: 24,
  		doc: "The maximum zoom level for the layer. At zoom levels equal to or greater than the maxzoom, the layer will be hidden."
  	},
  	filter: {
  		type: "filter",
  		doc: "An expression specifying conditions on source features. Only features that match the filter are displayed. Zoom expressions in filters are only evaluated at integer zoom levels. The `[\"feature-state\", ...]` expression is not supported in filter expressions.  The `[\"pitch\"]` and `[\"distance-from-center\"]` expressions are supported only for filter expressions on the symbol layer."
  	},
  	layout: {
  		type: "layout",
  		doc: "Layout properties for the layer."
  	},
  	paint: {
  		type: "paint",
  		doc: "Default paint properties for this layer."
  	}
  };
  var layout = [
  	"layout_fill",
  	"layout_line",
  	"layout_circle",
  	"layout_heatmap",
  	"layout_fill-extrusion",
  	"layout_symbol",
  	"layout_raster",
  	"layout_hillshade",
  	"layout_background",
  	"layout_sky"
  ];
  var layout_background = {
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		"property-type": "constant"
  	}
  };
  var layout_sky = {
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		},
  		"property-type": "constant"
  	}
  };
  var layout_fill = {
  	"fill-sort-key": {
  		type: "number",
  		doc: "Sorts features in ascending order based on this value. Features with a higher sort key will appear above features with a lower sort key.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "1.2.0",
  				android: "9.1.0",
  				ios: "5.8.0",
  				macos: "0.15.0"
  			},
  			"data-driven styling": {
  				js: "1.2.0",
  				android: "9.1.0",
  				ios: "5.8.0",
  				macos: "0.15.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		"property-type": "constant"
  	}
  };
  var layout_circle = {
  	"circle-sort-key": {
  		type: "number",
  		doc: "Sorts features in ascending order based on this value. Features with a higher sort key will appear above features with a lower sort key.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "1.2.0",
  				android: "9.2.0",
  				ios: "5.9.0",
  				macos: "0.16.0"
  			},
  			"data-driven styling": {
  				js: "1.2.0",
  				android: "9.2.0",
  				ios: "5.9.0",
  				macos: "0.16.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		"property-type": "constant"
  	}
  };
  var layout_heatmap = {
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.41.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		"property-type": "constant"
  	}
  };
  var layout_line = {
  	"line-cap": {
  		type: "enum",
  		values: {
  			butt: {
  				doc: "A cap with a squared-off end which is drawn to the exact endpoint of the line."
  			},
  			round: {
  				doc: "A cap with a rounded end which is drawn beyond the endpoint of the line at a radius of one-half of the line's width and centered on the endpoint of the line."
  			},
  			square: {
  				doc: "A cap with a squared-off end which is drawn beyond the endpoint of the line at a distance of one-half of the line's width."
  			}
  		},
  		"default": "butt",
  		doc: "The display of line endings.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "2.3.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"line-join": {
  		type: "enum",
  		values: {
  			bevel: {
  				doc: "A join with a squared-off end which is drawn beyond the endpoint of the line at a distance of one-half of the line's width."
  			},
  			round: {
  				doc: "A join with a rounded end which is drawn beyond the endpoint of the line at a radius of one-half of the line's width and centered on the endpoint of the line."
  			},
  			miter: {
  				doc: "A join with a sharp, angled corner which is drawn with the outer sides beyond the endpoint of the path until they meet."
  			}
  		},
  		"default": "miter",
  		doc: "The display of lines when joining.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.40.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"line-miter-limit": {
  		type: "number",
  		"default": 2,
  		doc: "Used to automatically convert miter joins to bevel joins for sharp angles.",
  		requires: [
  			{
  				"line-join": "miter"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"line-round-limit": {
  		type: "number",
  		"default": 1.05,
  		doc: "Used to automatically convert round joins to miter joins for shallow angles.",
  		requires: [
  			{
  				"line-join": "round"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"line-sort-key": {
  		type: "number",
  		doc: "Sorts features in ascending order based on this value. Features with a higher sort key will appear above features with a lower sort key.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "1.2.0",
  				android: "9.1.0",
  				ios: "5.8.0",
  				macos: "0.15.0"
  			},
  			"data-driven styling": {
  				js: "1.2.0",
  				android: "9.1.0",
  				ios: "5.8.0",
  				macos: "0.15.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		"property-type": "constant"
  	}
  };
  var layout_symbol = {
  	"symbol-placement": {
  		type: "enum",
  		values: {
  			point: {
  				doc: "The label is placed at the point where the geometry is located."
  			},
  			line: {
  				doc: "The label is placed along the line of the geometry. Can only be used on `LineString` and `Polygon` geometries."
  			},
  			"line-center": {
  				doc: "The label is placed at the center of the line of the geometry. Can only be used on `LineString` and `Polygon` geometries. Note that a single feature in a vector tile may contain multiple line geometries."
  			}
  		},
  		"default": "point",
  		doc: "Label placement relative to its geometry.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"`line-center` value": {
  				js: "0.47.0",
  				android: "6.4.0",
  				ios: "4.3.0",
  				macos: "0.10.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"symbol-spacing": {
  		type: "number",
  		"default": 250,
  		minimum: 1,
  		units: "pixels",
  		doc: "Distance between two symbol anchors.",
  		requires: [
  			{
  				"symbol-placement": "line"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"symbol-avoid-edges": {
  		type: "boolean",
  		"default": false,
  		doc: "If true, the symbols will not cross tile edges to avoid mutual collisions. Recommended in layers that don't have enough padding in the vector tile to prevent collisions, or if it is a point symbol layer placed after a line symbol layer. When using a client that supports global collision detection, like Mapbox GL JS version 0.42.0 or greater, enabling this property is not needed to prevent clipped labels at tile boundaries.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"symbol-sort-key": {
  		type: "number",
  		doc: "Sorts features in ascending order based on this value. Features with lower sort keys are drawn and placed first.  When `icon-allow-overlap` or `text-allow-overlap` is `false`, features with a lower sort key will have priority during placement. When `icon-allow-overlap` or `text-allow-overlap` is set to `true`, features with a higher sort key will overlap over features with a lower sort key.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.53.0",
  				android: "7.4.0",
  				ios: "4.11.0",
  				macos: "0.14.0"
  			},
  			"data-driven styling": {
  				js: "0.53.0",
  				android: "7.4.0",
  				ios: "4.11.0",
  				macos: "0.14.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"symbol-z-order": {
  		type: "enum",
  		values: {
  			auto: {
  				doc: "Sorts symbols by `symbol-sort-key` if set. Otherwise, sorts symbols by their y-position relative to the viewport if `icon-allow-overlap` or `text-allow-overlap` is set to `true` or `icon-ignore-placement` or `text-ignore-placement` is `false`."
  			},
  			"viewport-y": {
  				doc: "Sorts symbols by their y-position relative to the viewport if `icon-allow-overlap` or `text-allow-overlap` is set to `true` or `icon-ignore-placement` or `text-ignore-placement` is `false`."
  			},
  			source: {
  				doc: "Sorts symbols by `symbol-sort-key` if set. Otherwise, no sorting is applied; symbols are rendered in the same order as the source data."
  			}
  		},
  		"default": "auto",
  		doc: "Determines whether overlapping symbols in the same layer are rendered in the order that they appear in the data source or by their y-position relative to the viewport. To control the order and prioritization of symbols otherwise, use `symbol-sort-key`.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.49.0",
  				android: "6.6.0",
  				ios: "4.5.0",
  				macos: "0.12.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-allow-overlap": {
  		type: "boolean",
  		"default": false,
  		doc: "If true, the icon will be visible even if it collides with other previously drawn symbols.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-ignore-placement": {
  		type: "boolean",
  		"default": false,
  		doc: "If true, other symbols can be visible even if they collide with the icon.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-optional": {
  		type: "boolean",
  		"default": false,
  		doc: "If true, text will display without their corresponding icons when the icon collides with other symbols and the text does not.",
  		requires: [
  			"icon-image",
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-rotation-alignment": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "When `symbol-placement` is set to `point`, aligns icons east-west. When `symbol-placement` is set to `line` or `line-center`, aligns icon x-axes with the line."
  			},
  			viewport: {
  				doc: "Produces icons whose x-axes are aligned with the x-axis of the viewport, regardless of the value of `symbol-placement`."
  			},
  			auto: {
  				doc: "When `symbol-placement` is set to `point`, this is equivalent to `viewport`. When `symbol-placement` is set to `line` or `line-center`, this is equivalent to `map`."
  			}
  		},
  		"default": "auto",
  		doc: "In combination with `symbol-placement`, determines the rotation behavior of icons.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"`auto` value": {
  				js: "0.25.0",
  				android: "4.2.0",
  				ios: "3.4.0",
  				macos: "0.3.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-size": {
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		units: "factor of the original icon size",
  		doc: "Scales the original size of the icon by the provided factor. The new pixel size of the image will be the original pixel size multiplied by `icon-size`. 1 is the original size; 3 triples the size of the image.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.35.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-text-fit": {
  		type: "enum",
  		values: {
  			none: {
  				doc: "The icon is displayed at its intrinsic aspect ratio."
  			},
  			width: {
  				doc: "The icon is scaled in the x-dimension to fit the width of the text."
  			},
  			height: {
  				doc: "The icon is scaled in the y-dimension to fit the height of the text."
  			},
  			both: {
  				doc: "The icon is scaled in both x- and y-dimensions."
  			}
  		},
  		"default": "none",
  		doc: "Scales the icon to fit around the associated text.",
  		requires: [
  			"icon-image",
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.21.0",
  				android: "4.2.0",
  				ios: "3.4.0",
  				macos: "0.2.1"
  			},
  			"stretchable icons": {
  				js: "1.6.0",
  				android: "9.2.0",
  				ios: "5.8.0",
  				macos: "0.15.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-text-fit-padding": {
  		type: "array",
  		value: "number",
  		length: 4,
  		"default": [
  			0,
  			0,
  			0,
  			0
  		],
  		units: "pixels",
  		doc: "Size of the additional area added to dimensions determined by `icon-text-fit`, in clockwise order: top, right, bottom, left.",
  		requires: [
  			"icon-image",
  			"text-field",
  			{
  				"icon-text-fit": [
  					"both",
  					"width",
  					"height"
  				]
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.21.0",
  				android: "4.2.0",
  				ios: "3.4.0",
  				macos: "0.2.1"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-image": {
  		type: "resolvedImage",
  		doc: "Name of image in sprite to use for drawing an image background.",
  		tokens: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.35.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-rotate": {
  		type: "number",
  		"default": 0,
  		period: 360,
  		units: "degrees",
  		doc: "Rotates the icon clockwise.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.21.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-padding": {
  		type: "number",
  		"default": 2,
  		minimum: 0,
  		units: "pixels",
  		doc: "Size of the additional area around the icon bounding box used for detecting symbol collisions.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-keep-upright": {
  		type: "boolean",
  		"default": false,
  		doc: "If true, the icon may be flipped to prevent it from being rendered upside-down.",
  		requires: [
  			"icon-image",
  			{
  				"icon-rotation-alignment": "map"
  			},
  			{
  				"symbol-placement": [
  					"line",
  					"line-center"
  				]
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-offset": {
  		type: "array",
  		value: "number",
  		length: 2,
  		"default": [
  			0,
  			0
  		],
  		doc: "Offset distance of icon from its anchor. Positive values indicate right and down, while negative values indicate left and up. Each component is multiplied by the value of `icon-size` to obtain the final offset in pixels. When combined with `icon-rotate` the offset will be as if the rotated direction was up.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-anchor": {
  		type: "enum",
  		values: {
  			center: {
  				doc: "The center of the icon is placed closest to the anchor."
  			},
  			left: {
  				doc: "The left side of the icon is placed closest to the anchor."
  			},
  			right: {
  				doc: "The right side of the icon is placed closest to the anchor."
  			},
  			top: {
  				doc: "The top of the icon is placed closest to the anchor."
  			},
  			bottom: {
  				doc: "The bottom of the icon is placed closest to the anchor."
  			},
  			"top-left": {
  				doc: "The top left corner of the icon is placed closest to the anchor."
  			},
  			"top-right": {
  				doc: "The top right corner of the icon is placed closest to the anchor."
  			},
  			"bottom-left": {
  				doc: "The bottom left corner of the icon is placed closest to the anchor."
  			},
  			"bottom-right": {
  				doc: "The bottom right corner of the icon is placed closest to the anchor."
  			}
  		},
  		"default": "center",
  		doc: "Part of the icon placed closest to the anchor.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.40.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			},
  			"data-driven styling": {
  				js: "0.40.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-pitch-alignment": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "The icon is aligned to the plane of the map."
  			},
  			viewport: {
  				doc: "The icon is aligned to the plane of the viewport."
  			},
  			auto: {
  				doc: "Automatically matches the value of `icon-rotation-alignment`."
  			}
  		},
  		"default": "auto",
  		doc: "Orientation of icon when map is pitched.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.39.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-pitch-alignment": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "The text is aligned to the plane of the map."
  			},
  			viewport: {
  				doc: "The text is aligned to the plane of the viewport."
  			},
  			auto: {
  				doc: "Automatically matches the value of `text-rotation-alignment`."
  			}
  		},
  		"default": "auto",
  		doc: "Orientation of text when map is pitched.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.21.0",
  				android: "4.2.0",
  				ios: "3.4.0",
  				macos: "0.2.1"
  			},
  			"`auto` value": {
  				js: "0.25.0",
  				android: "4.2.0",
  				ios: "3.4.0",
  				macos: "0.3.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-rotation-alignment": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "When `symbol-placement` is set to `point`, aligns text east-west. When `symbol-placement` is set to `line` or `line-center`, aligns text x-axes with the line."
  			},
  			viewport: {
  				doc: "Produces glyphs whose x-axes are aligned with the x-axis of the viewport, regardless of the value of `symbol-placement`."
  			},
  			auto: {
  				doc: "When `symbol-placement` is set to `point`, this is equivalent to `viewport`. When `symbol-placement` is set to `line` or `line-center`, this is equivalent to `map`."
  			}
  		},
  		"default": "auto",
  		doc: "In combination with `symbol-placement`, determines the rotation behavior of the individual glyphs forming the text.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"`auto` value": {
  				js: "0.25.0",
  				android: "4.2.0",
  				ios: "3.4.0",
  				macos: "0.3.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-field": {
  		type: "formatted",
  		"default": "",
  		tokens: true,
  		doc: "Value to use for a text label. If a plain `string` is provided, it will be treated as a `formatted` with default/inherited formatting options. SDF images are not supported in formatted text and will be ignored.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-font": {
  		type: "array",
  		value: "string",
  		"default": [
  			"Open Sans Regular",
  			"Arial Unicode MS Regular"
  		],
  		doc: "Font stack to use for displaying text.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.43.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-size": {
  		type: "number",
  		"default": 16,
  		minimum: 0,
  		units: "pixels",
  		doc: "Font size.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.35.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-max-width": {
  		type: "number",
  		"default": 10,
  		minimum: 0,
  		units: "ems",
  		doc: "The maximum line width for text wrapping.",
  		requires: [
  			"text-field",
  			{
  				"symbol-placement": [
  					"point"
  				]
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.40.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-line-height": {
  		type: "number",
  		"default": 1.2,
  		units: "ems",
  		doc: "Text leading value for multi-line text.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "2.3.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-letter-spacing": {
  		type: "number",
  		"default": 0,
  		units: "ems",
  		doc: "Text tracking amount.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.40.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-justify": {
  		type: "enum",
  		values: {
  			auto: {
  				doc: "The text is aligned towards the anchor position."
  			},
  			left: {
  				doc: "The text is aligned to the left."
  			},
  			center: {
  				doc: "The text is centered."
  			},
  			right: {
  				doc: "The text is aligned to the right."
  			}
  		},
  		"default": "center",
  		doc: "Text justification options.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.39.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			},
  			auto: {
  				js: "0.54.0",
  				android: "7.4.0",
  				ios: "4.10.0",
  				macos: "0.14.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-radial-offset": {
  		type: "number",
  		units: "ems",
  		"default": 0,
  		doc: "Radial offset of text, in the direction of the symbol's anchor. Useful in combination with `text-variable-anchor`, which defaults to using the two-dimensional `text-offset` if present.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.54.0",
  				android: "7.4.0",
  				ios: "4.10.0",
  				macos: "0.14.0"
  			},
  			"data-driven styling": {
  				js: "0.54.0",
  				android: "7.4.0",
  				ios: "4.10.0",
  				macos: "0.14.0"
  			}
  		},
  		requires: [
  			"text-field"
  		],
  		"property-type": "data-driven",
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		}
  	},
  	"text-variable-anchor": {
  		type: "array",
  		value: "enum",
  		values: {
  			center: {
  				doc: "The center of the text is placed closest to the anchor."
  			},
  			left: {
  				doc: "The left side of the text is placed closest to the anchor."
  			},
  			right: {
  				doc: "The right side of the text is placed closest to the anchor."
  			},
  			top: {
  				doc: "The top of the text is placed closest to the anchor."
  			},
  			bottom: {
  				doc: "The bottom of the text is placed closest to the anchor."
  			},
  			"top-left": {
  				doc: "The top left corner of the text is placed closest to the anchor."
  			},
  			"top-right": {
  				doc: "The top right corner of the text is placed closest to the anchor."
  			},
  			"bottom-left": {
  				doc: "The bottom left corner of the text is placed closest to the anchor."
  			},
  			"bottom-right": {
  				doc: "The bottom right corner of the text is placed closest to the anchor."
  			}
  		},
  		requires: [
  			"text-field",
  			{
  				"symbol-placement": [
  					"point"
  				]
  			}
  		],
  		doc: "To increase the chance of placing high-priority labels on the map, you can provide an array of `text-anchor` locations: the renderer will attempt to place the label at each location, in order, before moving onto the next label. Use `text-justify: auto` to choose justification based on anchor position. To apply an offset, use the `text-radial-offset` or the two-dimensional `text-offset`.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.54.0",
  				android: "7.4.0",
  				ios: "4.10.0",
  				macos: "0.14.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-anchor": {
  		type: "enum",
  		values: {
  			center: {
  				doc: "The center of the text is placed closest to the anchor."
  			},
  			left: {
  				doc: "The left side of the text is placed closest to the anchor."
  			},
  			right: {
  				doc: "The right side of the text is placed closest to the anchor."
  			},
  			top: {
  				doc: "The top of the text is placed closest to the anchor."
  			},
  			bottom: {
  				doc: "The bottom of the text is placed closest to the anchor."
  			},
  			"top-left": {
  				doc: "The top left corner of the text is placed closest to the anchor."
  			},
  			"top-right": {
  				doc: "The top right corner of the text is placed closest to the anchor."
  			},
  			"bottom-left": {
  				doc: "The bottom left corner of the text is placed closest to the anchor."
  			},
  			"bottom-right": {
  				doc: "The bottom right corner of the text is placed closest to the anchor."
  			}
  		},
  		"default": "center",
  		doc: "Part of the text placed closest to the anchor.",
  		requires: [
  			"text-field",
  			{
  				"!": "text-variable-anchor"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.39.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-max-angle": {
  		type: "number",
  		"default": 45,
  		units: "degrees",
  		doc: "Maximum angle change between adjacent characters.",
  		requires: [
  			"text-field",
  			{
  				"symbol-placement": [
  					"line",
  					"line-center"
  				]
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-writing-mode": {
  		type: "array",
  		value: "enum",
  		values: {
  			horizontal: {
  				doc: "If a text's language supports horizontal writing mode, symbols would be laid out horizontally."
  			},
  			vertical: {
  				doc: "If a text's language supports vertical writing mode, symbols would be laid out vertically."
  			}
  		},
  		doc: "The property allows control over a symbol's orientation. Note that the property values act as a hint, so that a symbol whose language doesn’t support the provided orientation will be laid out in its natural orientation. Example: English point symbol will be rendered horizontally even if array value contains single 'vertical' enum value. For symbol with point placement, the order of elements in an array define priority order for the placement of an orientation variant. For symbol with line placement, the default text writing mode is either ['horizontal', 'vertical'] or ['vertical', 'horizontal'], the order doesn't affect the placement.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "1.3.0",
  				android: "8.3.0",
  				ios: "5.3.0",
  				macos: "0.15.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-rotate": {
  		type: "number",
  		"default": 0,
  		period: 360,
  		units: "degrees",
  		doc: "Rotates the text clockwise.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.35.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-padding": {
  		type: "number",
  		"default": 2,
  		minimum: 0,
  		units: "pixels",
  		doc: "Size of the additional area around the text bounding box used for detecting symbol collisions.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-keep-upright": {
  		type: "boolean",
  		"default": true,
  		doc: "If true, the text may be flipped vertically to prevent it from being rendered upside-down.",
  		requires: [
  			"text-field",
  			{
  				"text-rotation-alignment": "map"
  			},
  			{
  				"symbol-placement": [
  					"line",
  					"line-center"
  				]
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-transform": {
  		type: "enum",
  		values: {
  			none: {
  				doc: "The text is not altered."
  			},
  			uppercase: {
  				doc: "Forces all letters to be displayed in uppercase."
  			},
  			lowercase: {
  				doc: "Forces all letters to be displayed in lowercase."
  			}
  		},
  		"default": "none",
  		doc: "Specifies how to capitalize text, similar to the CSS `text-transform` property.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-offset": {
  		type: "array",
  		doc: "Offset distance of text from its anchor. Positive values indicate right and down, while negative values indicate left and up. If used with text-variable-anchor, input values will be taken as absolute values. Offsets along the x- and y-axis will be applied automatically based on the anchor position.",
  		value: "number",
  		units: "ems",
  		length: 2,
  		"default": [
  			0,
  			0
  		],
  		requires: [
  			"text-field",
  			{
  				"!": "text-radial-offset"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.35.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-allow-overlap": {
  		type: "boolean",
  		"default": false,
  		doc: "If true, the text will be visible even if it collides with other previously drawn symbols.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-ignore-placement": {
  		type: "boolean",
  		"default": false,
  		doc: "If true, other symbols can be visible even if they collide with the text.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-optional": {
  		type: "boolean",
  		"default": false,
  		doc: "If true, icons will display without their corresponding text when the text collides with other symbols and the icon does not.",
  		requires: [
  			"text-field",
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		"property-type": "constant"
  	}
  };
  var layout_raster = {
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		"property-type": "constant"
  	}
  };
  var layout_hillshade = {
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.43.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		"property-type": "constant"
  	}
  };
  var filter = {
  	type: "array",
  	value: "*",
  	doc: "A filter selects specific features from a layer."
  };
  var filter_symbol = {
  	type: "boolean",
  	doc: "Expression which determines whether or not to display a symbol. Symbols support dynamic filtering, meaning this expression can use the `[\"pitch\"]` and `[\"distance-from-center\"]` expressions to reference the current state of the view.",
  	"default": false,
  	transition: false,
  	"property-type": "data-driven",
  	expression: {
  		interpolated: false,
  		parameters: [
  			"zoom",
  			"feature",
  			"pitch",
  			"distance-from-center"
  		]
  	}
  };
  var filter_fill = {
  	type: "boolean",
  	doc: "Expression which determines whether or not to display a polygon. Fill layer does NOT support dynamic filtering, meaning this expression can NOT use the `[\"pitch\"]` and `[\"distance-from-center\"]` expressions to reference the current state of the view.",
  	"default": false,
  	transition: false,
  	"property-type": "data-driven",
  	expression: {
  		interpolated: false,
  		parameters: [
  			"zoom",
  			"feature"
  		]
  	}
  };
  var filter_line = {
  	type: "boolean",
  	doc: "Expression which determines whether or not to display a Polygon or LineString. Line layer does NOT support dynamic filtering, meaning this expression can NOT use the `[\"pitch\"]` and `[\"distance-from-center\"]` expressions to reference the current state of the view.",
  	"default": false,
  	transition: false,
  	"property-type": "data-driven",
  	expression: {
  		interpolated: false,
  		parameters: [
  			"zoom",
  			"feature"
  		]
  	}
  };
  var filter_circle = {
  	type: "boolean",
  	doc: "Expression which determines whether or not to display a circle. Circle layer does NOT support dynamic filtering, meaning this expression can NOT use the `[\"pitch\"]` and `[\"distance-from-center\"]` expressions to reference the current state of the view.",
  	"default": false,
  	transition: false,
  	"property-type": "data-driven",
  	expression: {
  		interpolated: false,
  		parameters: [
  			"zoom",
  			"feature"
  		]
  	}
  };
  var filter_heatmap = {
  	type: "boolean",
  	doc: "Expression used to determine whether a point is being displayed or not. Heatmap layer does NOT support dynamic filtering, meaning this expression can NOT use the `[\"pitch\"]` and `[\"distance-from-center\"]` expressions to reference the current state of the view.",
  	"default": false,
  	transition: false,
  	"property-type": "data-driven",
  	expression: {
  		interpolated: false,
  		parameters: [
  			"zoom",
  			"feature"
  		]
  	}
  };
  var filter_operator = {
  	type: "enum",
  	values: {
  		"==": {
  			doc: "`[\"==\", key, value]` equality: `feature[key] = value`"
  		},
  		"!=": {
  			doc: "`[\"!=\", key, value]` inequality: `feature[key] ≠ value`"
  		},
  		">": {
  			doc: "`[\">\", key, value]` greater than: `feature[key] > value`"
  		},
  		">=": {
  			doc: "`[\">=\", key, value]` greater than or equal: `feature[key] ≥ value`"
  		},
  		"<": {
  			doc: "`[\"<\", key, value]` less than: `feature[key] < value`"
  		},
  		"<=": {
  			doc: "`[\"<=\", key, value]` less than or equal: `feature[key] ≤ value`"
  		},
  		"in": {
  			doc: "`[\"in\", key, v0, ..., vn]` set inclusion: `feature[key] ∈ {v0, ..., vn}`"
  		},
  		"!in": {
  			doc: "`[\"!in\", key, v0, ..., vn]` set exclusion: `feature[key] ∉ {v0, ..., vn}`"
  		},
  		all: {
  			doc: "`[\"all\", f0, ..., fn]` logical `AND`: `f0 ∧ ... ∧ fn`"
  		},
  		any: {
  			doc: "`[\"any\", f0, ..., fn]` logical `OR`: `f0 ∨ ... ∨ fn`"
  		},
  		none: {
  			doc: "`[\"none\", f0, ..., fn]` logical `NOR`: `¬f0 ∧ ... ∧ ¬fn`"
  		},
  		has: {
  			doc: "`[\"has\", key]` `feature[key]` exists"
  		},
  		"!has": {
  			doc: "`[\"!has\", key]` `feature[key]` does not exist"
  		},
  		within: {
  			doc: "`[\"within\", object]` feature geometry is within object geometry"
  		}
  	},
  	doc: "The filter operator."
  };
  var geometry_type = {
  	type: "enum",
  	values: {
  		Point: {
  			doc: "Filter to point geometries."
  		},
  		LineString: {
  			doc: "Filter to line geometries."
  		},
  		Polygon: {
  			doc: "Filter to polygon geometries."
  		}
  	},
  	doc: "The geometry type for the filter to select."
  };
  var function_stop = {
  	type: "array",
  	minimum: 0,
  	maximum: 24,
  	value: [
  		"number",
  		"color"
  	],
  	length: 2,
  	doc: "Zoom level and value pair."
  };
  var expression = {
  	type: "array",
  	value: "*",
  	minimum: 1,
  	doc: "An expression defines a function that can be used for data-driven style properties or feature filters."
  };
  var expression_name = {
  	doc: "",
  	type: "enum",
  	values: {
  		"let": {
  			doc: "Binds expressions to named variables, which can then be referenced in the result expression using [\"var\", \"variable_name\"].",
  			group: "Variable binding",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"var": {
  			doc: "References variable bound using \"let\".",
  			group: "Variable binding",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		literal: {
  			doc: "Provides a literal array or object value.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		array: {
  			doc: "Asserts that the input is an array (optionally with a specific item type and length).  If, when the input expression is evaluated, it is not of the asserted type, then this assertion will cause the whole expression to be aborted.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		at: {
  			doc: "Retrieves an item from an array.",
  			group: "Lookup",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"in": {
  			doc: "Determines whether an item exists in an array or a substring exists in a string. In the specific case when the second and third arguments are string literals, you must wrap at least one of them in a [`literal`](#types-literal) expression to hint correct interpretation to the [type system](#type-system).",
  			group: "Lookup",
  			"sdk-support": {
  				"basic functionality": {
  					js: "1.6.0",
  					android: "9.1.0",
  					ios: "5.8.0",
  					macos: "0.15.0"
  				}
  			}
  		},
  		"index-of": {
  			doc: "Returns the first position at which an item can be found in an array or a substring can be found in a string, or `-1` if the input cannot be found. Accepts an optional index from where to begin the search.",
  			group: "Lookup",
  			"sdk-support": {
  				"basic functionality": {
  					js: "1.10.0"
  				}
  			}
  		},
  		slice: {
  			doc: "Returns an item from an array or a substring from a string from a specified start index, or between a start index and an end index if set. The return value is inclusive of the start index but not of the end index.",
  			group: "Lookup",
  			"sdk-support": {
  				"basic functionality": {
  					js: "1.10.0"
  				}
  			}
  		},
  		"case": {
  			doc: "Selects the first output whose corresponding test condition evaluates to true, or the fallback value otherwise.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		match: {
  			doc: "Selects the output for which the label value matches the input value, or the fallback value if no match is found. The input can be any expression (for example, `[\"get\", \"building_type\"]`). Each label must be unique, and must be either:\n - a single literal value; or\n - an array of literal values, the values of which must be all strings or all numbers (for example `[100, 101]` or `[\"c\", \"b\"]`).\n\nThe input matches if any of the values in the array matches using strict equality, similar to the `\"in\"` operator.\nIf the input type does not match the type of the labels, the result will be the fallback value.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		coalesce: {
  			doc: "Evaluates each expression in turn until the first valid value is obtained. Invalid values are `null` and [`'image'`](#types-image) expressions that are unavailable in the style. If all values are invalid, `coalesce` returns the first value listed.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		step: {
  			doc: "Produces discrete, stepped results by evaluating a piecewise-constant function defined by pairs of input and output values (\"stops\"). The `input` may be any numeric expression (e.g., `[\"get\", \"population\"]`). Stop inputs must be numeric literals in strictly ascending order. Returns the output value of the stop just less than the input, or the first output if the input is less than the first stop.",
  			group: "Ramps, scales, curves",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.42.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		interpolate: {
  			doc: "Produces continuous, smooth results by interpolating between pairs of input and output values (\"stops\"). The `input` may be any numeric expression (e.g., `[\"get\", \"population\"]`). Stop inputs must be numeric literals in strictly ascending order. The output type must be `number`, `array<number>`, or `color`.\n\nInterpolation types:\n- `[\"linear\"]`: Interpolates linearly between the pair of stops just less than and just greater than the input.\n- `[\"exponential\", base]`: Interpolates exponentially between the stops just less than and just greater than the input. `base` controls the rate at which the output increases: higher values make the output increase more towards the high end of the range. With values close to 1 the output increases linearly.\n- `[\"cubic-bezier\", x1, y1, x2, y2]`: Interpolates using the cubic bezier curve defined by the given control points.",
  			group: "Ramps, scales, curves",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.42.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"interpolate-hcl": {
  			doc: "Produces continuous, smooth results by interpolating between pairs of input and output values (\"stops\"). Works like `interpolate`, but the output type must be `color`, and the interpolation is performed in the Hue-Chroma-Luminance color space.",
  			group: "Ramps, scales, curves",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.49.0"
  				}
  			}
  		},
  		"interpolate-lab": {
  			doc: "Produces continuous, smooth results by interpolating between pairs of input and output values (\"stops\"). Works like `interpolate`, but the output type must be `color`, and the interpolation is performed in the CIELAB color space.",
  			group: "Ramps, scales, curves",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.49.0"
  				}
  			}
  		},
  		ln2: {
  			doc: "Returns mathematical constant ln(2).",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		pi: {
  			doc: "Returns the mathematical constant pi.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		e: {
  			doc: "Returns the mathematical constant e.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"typeof": {
  			doc: "Returns a string describing the type of the given value.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		string: {
  			doc: "Asserts that the input value is a string. If multiple values are provided, each one is evaluated in order until a string is obtained. If none of the inputs are strings, the expression is an error.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		number: {
  			doc: "Asserts that the input value is a number. If multiple values are provided, each one is evaluated in order until a number is obtained. If none of the inputs are numbers, the expression is an error.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		boolean: {
  			doc: "Asserts that the input value is a boolean. If multiple values are provided, each one is evaluated in order until a boolean is obtained. If none of the inputs are booleans, the expression is an error.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		object: {
  			doc: "Asserts that the input value is an object. If multiple values are provided, each one is evaluated in order until an object is obtained. If none of the inputs are objects, the expression is an error.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		collator: {
  			doc: "Returns a `collator` for use in locale-dependent comparison operations. The `case-sensitive` and `diacritic-sensitive` options default to `false`. The `locale` argument specifies the IETF language tag of the locale to use. If none is provided, the default locale is used. If the requested locale is not available, the `collator` will use a system-defined fallback locale. Use `resolved-locale` to test the results of locale fallback behavior.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.45.0",
  					android: "6.5.0",
  					ios: "4.2.0",
  					macos: "0.9.0"
  				}
  			}
  		},
  		format: {
  			doc: "Returns a `formatted` string for displaying mixed-format text in the `text-field` property. The input may contain a string literal or expression, including an [`'image'`](#types-image) expression. Strings may be followed by a style override object that supports the following properties:\n- `\"text-font\"`: Overrides the font stack specified by the root layout property.\n- `\"text-color\"`: Overrides the color specified by the root paint property.\n- `\"font-scale\"`: Applies a scaling factor on `text-size` as specified by the root layout property.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.48.0",
  					android: "6.7.0",
  					ios: "4.6.0",
  					macos: "0.12.0"
  				},
  				"text-font": {
  					js: "0.48.0",
  					android: "6.7.0",
  					ios: "4.6.0",
  					macos: "0.12.0"
  				},
  				"font-scale": {
  					js: "0.48.0",
  					android: "6.7.0",
  					ios: "4.6.0",
  					macos: "0.12.0"
  				},
  				"text-color": {
  					js: "1.3.0",
  					android: "7.3.0",
  					ios: "4.10.0",
  					macos: "0.14.0"
  				},
  				image: {
  					js: "1.6.0",
  					android: "8.6.0",
  					ios: "5.7.0",
  					macos: "0.15.0"
  				}
  			}
  		},
  		image: {
  			doc: "Returns a [`ResolvedImage`](/mapbox-gl-js/style-spec/types/#resolvedimage) for use in [`icon-image`](/mapbox-gl-js/style-spec/layers/#layout-symbol-icon-image), `*-pattern` entries, and as a section in the [`'format'`](#types-format) expression. A [`'coalesce'`](#coalesce) expression containing `image` expressions will evaluate to the first listed image that is currently in the style. This validation process is synchronous and requires the image to have been added to the style before requesting it in the `'image'` argument.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "1.4.0",
  					android: "8.6.0",
  					ios: "5.7.0",
  					macos: "0.15.0"
  				}
  			}
  		},
  		"number-format": {
  			doc: "Converts the input number into a string representation using the providing formatting rules. If set, the `locale` argument specifies the locale to use, as a BCP 47 language tag. If set, the `currency` argument specifies an ISO 4217 code to use for currency-style formatting. If set, the `min-fraction-digits` and `max-fraction-digits` arguments specify the minimum and maximum number of fractional digits to include.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.54.0",
  					android: "8.4.0",
  					ios: "5.4.0",
  					macos: "0.15.0"
  				}
  			}
  		},
  		"to-string": {
  			doc: "Converts the input value to a string. If the input is `null`, the result is `\"\"`. If the input is a [`boolean`](#types-boolean), the result is `\"true\"` or `\"false\"`. If the input is a number, it is converted to a string as specified by the [\"NumberToString\" algorithm](https://tc39.github.io/ecma262/#sec-tostring-applied-to-the-number-type) of the ECMAScript Language Specification. If the input is a [`color`](#color), it is converted to a string of the form `\"rgba(r,g,b,a)\"`, where `r`, `g`, and `b` are numerals ranging from 0 to 255, and `a` ranges from 0 to 1. If the input is an [`'image'`](#types-image) expression, `'to-string'` returns the image name. Otherwise, the input is converted to a string in the format specified by the [`JSON.stringify`](https://tc39.github.io/ecma262/#sec-json.stringify) function of the ECMAScript Language Specification.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"to-number": {
  			doc: "Converts the input value to a number, if possible. If the input is `null` or `false`, the result is 0. If the input is `true`, the result is 1. If the input is a string, it is converted to a number as specified by the [\"ToNumber Applied to the String Type\" algorithm](https://tc39.github.io/ecma262/#sec-tonumber-applied-to-the-string-type) of the ECMAScript Language Specification. If multiple values are provided, each one is evaluated in order until the first successful conversion is obtained. If none of the inputs can be converted, the expression is an error.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"to-boolean": {
  			doc: "Converts the input value to a boolean. The result is `false` when then input is an empty string, 0, `false`, `null`, or `NaN`; otherwise it is `true`.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"to-rgba": {
  			doc: "Returns a four-element array containing the input color's red, green, blue, and alpha components, in that order.",
  			group: "Color",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"to-color": {
  			doc: "Converts the input value to a color. If multiple values are provided, each one is evaluated in order until the first successful conversion is obtained. If none of the inputs can be converted, the expression is an error.",
  			group: "Types",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		rgb: {
  			doc: "Creates a color value from red, green, and blue components, which must range between 0 and 255, and an alpha component of 1. If any component is out of range, the expression is an error.",
  			group: "Color",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		rgba: {
  			doc: "Creates a color value from red, green, blue components, which must range between 0 and 255, and an alpha component which must range between 0 and 1. If any component is out of range, the expression is an error.",
  			group: "Color",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		get: {
  			doc: "Retrieves a property value from the current feature's properties, or from another object if a second argument is provided. Returns `null` if the requested property is missing.",
  			group: "Lookup",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		has: {
  			doc: "Tests for the presence of an property value in the current feature's properties, or from another object if a second argument is provided.",
  			group: "Lookup",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		length: {
  			doc: "Returns the length of an array or string.",
  			group: "Lookup",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		properties: {
  			doc: "Returns the feature properties object.  Note that in some cases, it may be more efficient to use `[\"get\", \"property_name\"]` directly.",
  			group: "Feature data",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"feature-state": {
  			doc: "Retrieves a property value from the current feature's state. Returns `null` if the requested property is not present on the feature's state. A feature's state is not part of the GeoJSON or vector tile data, and must be set programmatically on each feature. Features are identified by their `id` attribute, which must be an integer or a string that can be cast to an integer. Note that [\"feature-state\"] can only be used with paint properties that support data-driven styling.",
  			group: "Feature data",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.46.0"
  				}
  			}
  		},
  		"geometry-type": {
  			doc: "Returns the feature's geometry type: `Point`, `MultiPoint`, `LineString`, `MultiLineString`, `Polygon`, `MultiPolygon`. `Multi*` feature types are only returned in GeoJSON sources. When working with vector tile sources, use the singular forms.",
  			group: "Feature data",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		id: {
  			doc: "Returns the feature's id, if it has one.",
  			group: "Feature data",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		zoom: {
  			doc: "Returns the current zoom level.  Note that in style layout and paint properties, [\"zoom\"] may only appear as the input to a top-level \"step\" or \"interpolate\" expression.",
  			group: "Camera",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		pitch: {
  			doc: "Returns the current pitch in degrees. `[\"pitch\"]` may only be used in the `filter` expression for a `symbol` layer.",
  			group: "Camera",
  			"sdk-support": {
  				"basic functionality": {
  					js: "2.6.0"
  				}
  			}
  		},
  		"distance-from-center": {
  			doc: "Returns the distance of a `symbol` instance from the center of the map. The distance is measured in pixels divided by the height of the map container. It measures 0 at the center, decreases towards the camera and increase away from the camera. For example, if the height of the map is 1000px, a value of -1 means 1000px away from the center towards the camera, and a value of 1 means a distance of 1000px away from the camera from the center. `[\"distance-from-center\"]` may only be used in the `filter` expression for a `symbol` layer.",
  			group: "Camera",
  			"sdk-support": {
  				"basic functionality": {
  					js: "2.6.0"
  				}
  			}
  		},
  		"heatmap-density": {
  			doc: "Returns the kernel density estimation of a pixel in a heatmap layer, which is a relative measure of how many data points are crowded around a particular pixel. Can only be used in the `heatmap-color` property.",
  			group: "Heatmap",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"line-progress": {
  			doc: "Returns the progress along a gradient line. Can only be used in the `line-gradient` property.",
  			group: "Feature data",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.45.0",
  					android: "6.5.0",
  					ios: "4.6.0",
  					macos: "0.12.0"
  				}
  			}
  		},
  		"sky-radial-progress": {
  			doc: "Returns the distance of a point on the sky from the sun position. Returns 0 at sun position and 1 when the distance reaches `sky-gradient-radius`. Can only be used in the `sky-gradient` property.",
  			group: "sky",
  			"sdk-support": {
  				"basic functionality": {
  					js: "2.0.0",
  					ios: "10.0.0",
  					android: "10.0.0"
  				}
  			}
  		},
  		accumulated: {
  			doc: "Returns the value of a cluster property accumulated so far. Can only be used in the `clusterProperties` option of a clustered GeoJSON source.",
  			group: "Feature data",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.53.0",
  					android: "8.4.0",
  					ios: "5.5.0",
  					macos: "0.15.0"
  				}
  			}
  		},
  		"+": {
  			doc: "Returns the sum of the inputs.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"*": {
  			doc: "Returns the product of the inputs.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"-": {
  			doc: "For two inputs, returns the result of subtracting the second input from the first. For a single input, returns the result of subtracting it from 0.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"/": {
  			doc: "Returns the result of floating point division of the first input by the second.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"%": {
  			doc: "Returns the remainder after integer division of the first input by the second.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"^": {
  			doc: "Returns the result of raising the first input to the power specified by the second.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		sqrt: {
  			doc: "Returns the square root of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.42.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		log10: {
  			doc: "Returns the base-ten logarithm of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		ln: {
  			doc: "Returns the natural logarithm of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		log2: {
  			doc: "Returns the base-two logarithm of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		sin: {
  			doc: "Returns the sine of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		cos: {
  			doc: "Returns the cosine of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		tan: {
  			doc: "Returns the tangent of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		asin: {
  			doc: "Returns the arcsine of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		acos: {
  			doc: "Returns the arccosine of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		atan: {
  			doc: "Returns the arctangent of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		min: {
  			doc: "Returns the minimum value of the inputs.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		max: {
  			doc: "Returns the maximum value of the inputs.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		round: {
  			doc: "Rounds the input to the nearest integer. Halfway values are rounded away from zero. For example, `[\"round\", -1.5]` evaluates to -2.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.45.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		abs: {
  			doc: "Returns the absolute value of the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.45.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		ceil: {
  			doc: "Returns the smallest integer that is greater than or equal to the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.45.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		floor: {
  			doc: "Returns the largest integer that is less than or equal to the input.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.45.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		distance: {
  			doc: "Returns the shortest distance in meters between the evaluated feature and the input geometry. The input value can be a valid GeoJSON of type `Point`, `MultiPoint`, `LineString`, `MultiLineString`, `Polygon`, `MultiPolygon`, `Feature`, or `FeatureCollection`. Distance values returned may vary in precision due to loss in precision from encoding geometries, particularly below zoom level 13.",
  			group: "Math",
  			"sdk-support": {
  				"basic functionality": {
  					android: "9.2.0",
  					ios: "5.9.0",
  					macos: "0.16.0"
  				}
  			}
  		},
  		"==": {
  			doc: "Returns `true` if the input values are equal, `false` otherwise. The comparison is strictly typed: values of different runtime types are always considered unequal. Cases where the types are known to be different at parse time are considered invalid and will produce a parse error. Accepts an optional `collator` argument to control locale-dependent string comparisons.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				},
  				collator: {
  					js: "0.45.0",
  					android: "6.5.0",
  					ios: "4.2.0",
  					macos: "0.9.0"
  				}
  			}
  		},
  		"!=": {
  			doc: "Returns `true` if the input values are not equal, `false` otherwise. The comparison is strictly typed: values of different runtime types are always considered unequal. Cases where the types are known to be different at parse time are considered invalid and will produce a parse error. Accepts an optional `collator` argument to control locale-dependent string comparisons.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				},
  				collator: {
  					js: "0.45.0",
  					android: "6.5.0",
  					ios: "4.2.0",
  					macos: "0.9.0"
  				}
  			}
  		},
  		">": {
  			doc: "Returns `true` if the first input is strictly greater than the second, `false` otherwise. The arguments are required to be either both strings or both numbers; if during evaluation they are not, expression evaluation produces an error. Cases where this constraint is known not to hold at parse time are considered in valid and will produce a parse error. Accepts an optional `collator` argument to control locale-dependent string comparisons.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				},
  				collator: {
  					js: "0.45.0",
  					android: "6.5.0",
  					ios: "4.2.0",
  					macos: "0.9.0"
  				}
  			}
  		},
  		"<": {
  			doc: "Returns `true` if the first input is strictly less than the second, `false` otherwise. The arguments are required to be either both strings or both numbers; if during evaluation they are not, expression evaluation produces an error. Cases where this constraint is known not to hold at parse time are considered in valid and will produce a parse error. Accepts an optional `collator` argument to control locale-dependent string comparisons.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				},
  				collator: {
  					js: "0.45.0",
  					android: "6.5.0",
  					ios: "4.2.0",
  					macos: "0.9.0"
  				}
  			}
  		},
  		">=": {
  			doc: "Returns `true` if the first input is greater than or equal to the second, `false` otherwise. The arguments are required to be either both strings or both numbers; if during evaluation they are not, expression evaluation produces an error. Cases where this constraint is known not to hold at parse time are considered in valid and will produce a parse error. Accepts an optional `collator` argument to control locale-dependent string comparisons.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				},
  				collator: {
  					js: "0.45.0",
  					android: "6.5.0",
  					ios: "4.2.0",
  					macos: "0.9.0"
  				}
  			}
  		},
  		"<=": {
  			doc: "Returns `true` if the first input is less than or equal to the second, `false` otherwise. The arguments are required to be either both strings or both numbers; if during evaluation they are not, expression evaluation produces an error. Cases where this constraint is known not to hold at parse time are considered in valid and will produce a parse error. Accepts an optional `collator` argument to control locale-dependent string comparisons.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				},
  				collator: {
  					js: "0.45.0",
  					android: "6.5.0",
  					ios: "4.2.0",
  					macos: "0.9.0"
  				}
  			}
  		},
  		all: {
  			doc: "Returns `true` if all the inputs are `true`, `false` otherwise. The inputs are evaluated in order, and evaluation is short-circuiting: once an input expression evaluates to `false`, the result is `false` and no further input expressions are evaluated.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		any: {
  			doc: "Returns `true` if any of the inputs are `true`, `false` otherwise. The inputs are evaluated in order, and evaluation is short-circuiting: once an input expression evaluates to `true`, the result is `true` and no further input expressions are evaluated.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"!": {
  			doc: "Logical negation. Returns `true` if the input is `false`, and `false` if the input is `true`.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		within: {
  			doc: "Returns `true` if the evaluated feature is fully contained inside a boundary of the input geometry, `false` otherwise. The input value can be a valid GeoJSON of type `Polygon`, `MultiPolygon`, `Feature`, or `FeatureCollection`. Supported features for evaluation:\n- `Point`: Returns `false` if a point is on the boundary or falls outside the boundary.\n- `LineString`: Returns `false` if any part of a line falls outside the boundary, the line intersects the boundary, or a line's endpoint is on the boundary.",
  			group: "Decision",
  			"sdk-support": {
  				"basic functionality": {
  					js: "1.9.0",
  					android: "9.1.0",
  					ios: "5.8.0",
  					macos: "0.15.0"
  				}
  			}
  		},
  		"is-supported-script": {
  			doc: "Returns `true` if the input string is expected to render legibly. Returns `false` if the input string contains sections that cannot be rendered without potential loss of meaning (e.g. Indic scripts that require complex text shaping, or right-to-left scripts if the the `mapbox-gl-rtl-text` plugin is not in use in Mapbox GL JS).",
  			group: "String",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.45.0",
  					android: "6.6.0"
  				}
  			}
  		},
  		upcase: {
  			doc: "Returns the input string converted to uppercase. Follows the Unicode Default Case Conversion algorithm and the locale-insensitive case mappings in the Unicode Character Database.",
  			group: "String",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		downcase: {
  			doc: "Returns the input string converted to lowercase. Follows the Unicode Default Case Conversion algorithm and the locale-insensitive case mappings in the Unicode Character Database.",
  			group: "String",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		concat: {
  			doc: "Returns a `string` consisting of the concatenation of the inputs. Each input is converted to a string as if by `to-string`.",
  			group: "String",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.41.0",
  					android: "6.0.0",
  					ios: "4.0.0",
  					macos: "0.7.0"
  				}
  			}
  		},
  		"resolved-locale": {
  			doc: "Returns the IETF language tag of the locale being used by the provided `collator`. This can be used to determine the default system locale, or to determine if a requested locale was successfully loaded.",
  			group: "String",
  			"sdk-support": {
  				"basic functionality": {
  					js: "0.45.0",
  					android: "6.5.0",
  					ios: "4.2.0",
  					macos: "0.9.0"
  				}
  			}
  		}
  	}
  };
  var fog = {
  	range: {
  		type: "array",
  		"default": [
  			0.5,
  			10
  		],
  		minimum: -20,
  		maximum: 20,
  		length: 2,
  		value: "number",
  		"property-type": "data-constant",
  		transition: true,
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		doc: "The start and end distance range in which fog fades from fully transparent to fully opaque. The distance to the point at the center of the map is defined as zero, so that negative range values are closer to the camera, and positive values are farther away.",
  		example: [
  			0.5,
  			10
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.3.0"
  			}
  		}
  	},
  	color: {
  		type: "color",
  		"property-type": "data-constant",
  		"default": "#ffffff",
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		transition: true,
  		doc: "The color of the fog. Using opacity is recommended only for smoothly transitioning fog on/off as anything less than 100% opacity results in more tiles loaded and drawn.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.3.0"
  			}
  		}
  	},
  	"horizon-blend": {
  		type: "number",
  		"property-type": "data-constant",
  		"default": 0.1,
  		minimum: 0,
  		maximum: 1,
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		transition: true,
  		doc: "Horizon blend applies a smooth fade from the color of the fog to the color of the sky. A value of zero leaves a sharp transition from fog to sky. Increasing the value blends the color of fog into increasingly high angles of the sky.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.3.0"
  			}
  		}
  	}
  };
  var light = {
  	anchor: {
  		type: "enum",
  		"default": "viewport",
  		values: {
  			map: {
  				doc: "The position of the light source is aligned to the rotation of the map."
  			},
  			viewport: {
  				doc: "The position of the light source is aligned to the rotation of the viewport."
  			}
  		},
  		"property-type": "data-constant",
  		transition: false,
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		doc: "Whether extruded geometries are lit relative to the map or viewport.",
  		example: "map",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		}
  	},
  	position: {
  		type: "array",
  		"default": [
  			1.15,
  			210,
  			30
  		],
  		length: 3,
  		value: "number",
  		"property-type": "data-constant",
  		transition: true,
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		doc: "Position of the light source relative to lit (extruded) geometries, in [r radial coordinate, a azimuthal angle, p polar angle] where r indicates the distance from the center of the base of an object to its light, a indicates the position of the light relative to 0° (0° when `light.anchor` is set to `viewport` corresponds to the top of the viewport, or 0° when `light.anchor` is set to `map` corresponds to due north, and degrees proceed clockwise), and p indicates the height of the light (from 0°, directly above, to 180°, directly below).",
  		example: [
  			1.5,
  			90,
  			80
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		}
  	},
  	color: {
  		type: "color",
  		"property-type": "data-constant",
  		"default": "#ffffff",
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		transition: true,
  		doc: "Color tint for lighting extruded geometries.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		}
  	},
  	intensity: {
  		type: "number",
  		"property-type": "data-constant",
  		"default": 0.5,
  		minimum: 0,
  		maximum: 1,
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		transition: true,
  		doc: "Intensity of lighting (on a scale from 0 to 1). Higher numbers will present as more extreme contrast.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		}
  	}
  };
  var projection = {
  	name: {
  		type: "enum",
  		values: {
  			albers: {
  				doc: "An Albers equal-area projection centered on the continental United States. You can configure the projection for a different region by setting `center` and `parallels` properties. You may want to set max bounds to constrain the map to the relevant region."
  			},
  			equalEarth: {
  				doc: "An Equal Earth projection."
  			},
  			equirectangular: {
  				doc: "An Equirectangular projection. This projection is very similar to the Plate Carrée projection."
  			},
  			lambertConformalConic: {
  				doc: "A Lambert conformal conic projection. You can configure the projection for a region by setting `center` and `parallels` properties. You may want to set max bounds to constrain the map to the relevant region."
  			},
  			mercator: {
  				doc: "The Mercator projection is the default projection."
  			},
  			naturalEarth: {
  				doc: "A Natural Earth projection."
  			},
  			winkelTripel: {
  				doc: "A Winkel Tripel projection."
  			}
  		},
  		"default": "mercator",
  		doc: "The name of the projection to be used for rendering the map.",
  		required: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.6.0"
  			}
  		}
  	},
  	center: {
  		type: "array",
  		length: 2,
  		value: "number",
  		"property-type": "data-constant",
  		transition: false,
  		doc: "The reference longitude and latitude of the projection. `center` takes the form of [lng, lat]. This property is only configurable for conic projections (Albers and Lambert Conformal Conic). All other projections are centered on [0, 0].",
  		example: [
  			-96,
  			37.5
  		],
  		requires: [
  			{
  				name: [
  					"albers",
  					"lambertConformalConic"
  				]
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.6.0"
  			}
  		}
  	},
  	parallels: {
  		type: "array",
  		length: 2,
  		value: "number",
  		"property-type": "data-constant",
  		transition: false,
  		doc: "The standard parallels of the projection, denoting the desired latitude range with minimal distortion. `parallels` takes the form of [lat0, lat1]. This property is only configurable for conic projections (Albers and Lambert Conformal Conic).",
  		example: [
  			29.5,
  			45.5
  		],
  		requires: [
  			{
  				name: [
  					"albers",
  					"lambertConformalConic"
  				]
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.6.0"
  			}
  		}
  	}
  };
  var terrain = {
  	source: {
  		type: "string",
  		doc: "Name of a source of `raster_dem` type to be used for terrain elevation.",
  		required: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		}
  	},
  	exaggeration: {
  		type: "number",
  		"property-type": "data-constant",
  		"default": 1,
  		minimum: 0,
  		maximum: 1000,
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		transition: true,
  		doc: "Exaggerates the elevation of the terrain by multiplying the data from the DEM with this value.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		}
  	}
  };
  var paint = [
  	"paint_fill",
  	"paint_line",
  	"paint_circle",
  	"paint_heatmap",
  	"paint_fill-extrusion",
  	"paint_symbol",
  	"paint_raster",
  	"paint_hillshade",
  	"paint_background",
  	"paint_sky"
  ];
  var paint_fill = {
  	"fill-antialias": {
  		type: "boolean",
  		"default": true,
  		doc: "Whether or not the fill should be antialiased.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"fill-opacity": {
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		doc: "The opacity of the entire fill layer. In contrast to the `fill-color`, this value will also affect the 1px stroke around the fill, if the stroke is used.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.21.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"fill-color": {
  		type: "color",
  		"default": "#000000",
  		doc: "The color of the filled part of this layer. This color can be specified as `rgba` with an alpha component and the color's opacity will not affect the opacity of the 1px stroke, if it is used.",
  		transition: true,
  		requires: [
  			{
  				"!": "fill-pattern"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.19.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"fill-outline-color": {
  		type: "color",
  		doc: "The outline color of the fill. Matches the value of `fill-color` if unspecified.",
  		transition: true,
  		requires: [
  			{
  				"!": "fill-pattern"
  			},
  			{
  				"fill-antialias": true
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.19.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"fill-translate": {
  		type: "array",
  		value: "number",
  		length: 2,
  		"default": [
  			0,
  			0
  		],
  		transition: true,
  		units: "pixels",
  		doc: "The geometry's offset. Values are [x, y] where negatives indicate left and up, respectively.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"fill-translate-anchor": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "The fill is translated relative to the map."
  			},
  			viewport: {
  				doc: "The fill is translated relative to the viewport."
  			}
  		},
  		doc: "Controls the frame of reference for `fill-translate`.",
  		"default": "map",
  		requires: [
  			"fill-translate"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"fill-pattern": {
  		type: "resolvedImage",
  		transition: true,
  		doc: "Name of image in sprite to use for drawing image fills. For seamless patterns, image width and height must be a factor of two (2, 4, 8, ..., 512). Note that zoom-dependent expressions will be evaluated only at integer zoom levels.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.49.0",
  				android: "6.5.0",
  				macos: "0.11.0",
  				ios: "4.4.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "cross-faded-data-driven"
  	}
  };
  var paint_line = {
  	"line-opacity": {
  		type: "number",
  		doc: "The opacity at which the line will be drawn.",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"line-color": {
  		type: "color",
  		doc: "The color with which the line will be drawn.",
  		"default": "#000000",
  		transition: true,
  		requires: [
  			{
  				"!": "line-pattern"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.23.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"line-translate": {
  		type: "array",
  		value: "number",
  		length: 2,
  		"default": [
  			0,
  			0
  		],
  		transition: true,
  		units: "pixels",
  		doc: "The geometry's offset. Values are [x, y] where negatives indicate left and up, respectively.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"line-translate-anchor": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "The line is translated relative to the map."
  			},
  			viewport: {
  				doc: "The line is translated relative to the viewport."
  			}
  		},
  		doc: "Controls the frame of reference for `line-translate`.",
  		"default": "map",
  		requires: [
  			"line-translate"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"line-width": {
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		transition: true,
  		units: "pixels",
  		doc: "Stroke thickness.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.39.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"line-gap-width": {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		doc: "Draws a line casing outside of a line's actual path. Value indicates the width of the inner gap.",
  		transition: true,
  		units: "pixels",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"line-offset": {
  		type: "number",
  		"default": 0,
  		doc: "The line's offset. For linear features, a positive value offsets the line to the right, relative to the direction of the line, and a negative value to the left. For polygon features, a positive value results in an inset, and a negative value results in an outset.",
  		transition: true,
  		units: "pixels",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.12.1",
  				android: "3.0.0",
  				ios: "3.1.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"line-blur": {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		transition: true,
  		units: "pixels",
  		doc: "Blur applied to the line, in pixels.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"line-dasharray": {
  		type: "array",
  		value: "number",
  		doc: "Specifies the lengths of the alternating dashes and gaps that form the dash pattern. The lengths are later scaled by the line width. To convert a dash length to pixels, multiply the length by the current line width. Note that GeoJSON sources with `lineMetrics: true` specified won't render dashed lines to the expected scale. Also note that zoom-dependent expressions will be evaluated only at integer zoom levels.",
  		minimum: 0,
  		transition: true,
  		units: "line widths",
  		requires: [
  			{
  				"!": "line-pattern"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "2.3.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "cross-faded-data-driven"
  	},
  	"line-pattern": {
  		type: "resolvedImage",
  		transition: true,
  		doc: "Name of image in sprite to use for drawing image lines. For seamless patterns, image width must be a factor of two (2, 4, 8, ..., 512). Note that zoom-dependent expressions will be evaluated only at integer zoom levels.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.49.0",
  				android: "6.5.0",
  				macos: "0.11.0",
  				ios: "4.4.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "cross-faded-data-driven"
  	},
  	"line-gradient": {
  		type: "color",
  		doc: "Defines a gradient with which to color a line feature. Can only be used with GeoJSON sources that specify `\"lineMetrics\": true`.",
  		transition: false,
  		requires: [
  			{
  				"!": "line-pattern"
  			},
  			{
  				source: "geojson",
  				has: {
  					lineMetrics: true
  				}
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.45.0",
  				android: "6.5.0",
  				ios: "4.4.0",
  				macos: "0.11.0"
  			},
  			"data-driven styling": {
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"line-progress"
  			]
  		},
  		"property-type": "color-ramp"
  	}
  };
  var paint_circle = {
  	"circle-radius": {
  		type: "number",
  		"default": 5,
  		minimum: 0,
  		transition: true,
  		units: "pixels",
  		doc: "Circle radius.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.18.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"circle-color": {
  		type: "color",
  		"default": "#000000",
  		doc: "The fill color of the circle.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.18.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"circle-blur": {
  		type: "number",
  		"default": 0,
  		doc: "Amount to blur the circle. 1 blurs the circle such that only the centerpoint is full opacity.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.20.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"circle-opacity": {
  		type: "number",
  		doc: "The opacity at which the circle will be drawn.",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.20.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"circle-translate": {
  		type: "array",
  		value: "number",
  		length: 2,
  		"default": [
  			0,
  			0
  		],
  		transition: true,
  		units: "pixels",
  		doc: "The geometry's offset. Values are [x, y] where negatives indicate left and up, respectively.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"circle-translate-anchor": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "The circle is translated relative to the map."
  			},
  			viewport: {
  				doc: "The circle is translated relative to the viewport."
  			}
  		},
  		doc: "Controls the frame of reference for `circle-translate`.",
  		"default": "map",
  		requires: [
  			"circle-translate"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"circle-pitch-scale": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "Circles are scaled according to their apparent distance to the camera."
  			},
  			viewport: {
  				doc: "Circles are not scaled."
  			}
  		},
  		"default": "map",
  		doc: "Controls the scaling behavior of the circle when the map is pitched.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.21.0",
  				android: "4.2.0",
  				ios: "3.4.0",
  				macos: "0.2.1"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"circle-pitch-alignment": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "The circle is aligned to the plane of the map."
  			},
  			viewport: {
  				doc: "The circle is aligned to the plane of the viewport."
  			}
  		},
  		"default": "viewport",
  		doc: "Orientation of circle when map is pitched.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.39.0",
  				android: "5.2.0",
  				ios: "3.7.0",
  				macos: "0.6.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"circle-stroke-width": {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		transition: true,
  		units: "pixels",
  		doc: "The width of the circle's stroke. Strokes are placed outside of the `circle-radius`.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			},
  			"data-driven styling": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"circle-stroke-color": {
  		type: "color",
  		"default": "#000000",
  		doc: "The stroke color of the circle.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			},
  			"data-driven styling": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"circle-stroke-opacity": {
  		type: "number",
  		doc: "The opacity of the circle's stroke.",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			},
  			"data-driven styling": {
  				js: "0.29.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	}
  };
  var paint_heatmap = {
  	"heatmap-radius": {
  		type: "number",
  		"default": 30,
  		minimum: 1,
  		transition: true,
  		units: "pixels",
  		doc: "Radius of influence of one heatmap point in pixels. Increasing the value makes the heatmap smoother, but less detailed. `queryRenderedFeatures` on heatmap layers will return points within this radius.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.41.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			},
  			"data-driven styling": {
  				js: "0.43.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"heatmap-weight": {
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		transition: false,
  		doc: "A measure of how much an individual point contributes to the heatmap. A value of 10 would be equivalent to having 10 points of weight 1 in the same spot. Especially useful when combined with clustering.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.41.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			},
  			"data-driven styling": {
  				js: "0.41.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"heatmap-intensity": {
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		transition: true,
  		doc: "Similar to `heatmap-weight` but controls the intensity of the heatmap globally. Primarily used for adjusting the heatmap based on zoom level.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.41.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"heatmap-color": {
  		type: "color",
  		"default": [
  			"interpolate",
  			[
  				"linear"
  			],
  			[
  				"heatmap-density"
  			],
  			0,
  			"rgba(0, 0, 255, 0)",
  			0.1,
  			"royalblue",
  			0.3,
  			"cyan",
  			0.5,
  			"lime",
  			0.7,
  			"yellow",
  			1,
  			"red"
  		],
  		doc: "Defines the color of each pixel based on its density value in a heatmap.  Should be an expression that uses `[\"heatmap-density\"]` as input.",
  		transition: false,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.41.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			},
  			"data-driven styling": {
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"heatmap-density"
  			]
  		},
  		"property-type": "color-ramp"
  	},
  	"heatmap-opacity": {
  		type: "number",
  		doc: "The global opacity at which the heatmap layer will be drawn.",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.41.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	}
  };
  var paint_symbol = {
  	"icon-opacity": {
  		doc: "The opacity at which the icon will be drawn.",
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-color": {
  		type: "color",
  		"default": "#000000",
  		transition: true,
  		doc: "The color of the icon. This can only be used with [SDF icons](/help/troubleshooting/using-recolorable-images-in-mapbox-maps/).",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-halo-color": {
  		type: "color",
  		"default": "rgba(0, 0, 0, 0)",
  		transition: true,
  		doc: "The color of the icon's halo. Icon halos can only be used with [SDF icons](/help/troubleshooting/using-recolorable-images-in-mapbox-maps/).",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-halo-width": {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		transition: true,
  		units: "pixels",
  		doc: "Distance of halo to the icon outline.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-halo-blur": {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		transition: true,
  		units: "pixels",
  		doc: "Fade out the halo towards the outside.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"icon-translate": {
  		type: "array",
  		value: "number",
  		length: 2,
  		"default": [
  			0,
  			0
  		],
  		transition: true,
  		units: "pixels",
  		doc: "Distance that the icon's anchor is moved from its original placement. Positive values indicate right and down, while negative values indicate left and up.",
  		requires: [
  			"icon-image"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"icon-translate-anchor": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "Icons are translated relative to the map."
  			},
  			viewport: {
  				doc: "Icons are translated relative to the viewport."
  			}
  		},
  		doc: "Controls the frame of reference for `icon-translate`.",
  		"default": "map",
  		requires: [
  			"icon-image",
  			"icon-translate"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-opacity": {
  		type: "number",
  		doc: "The opacity at which the text will be drawn.",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-color": {
  		type: "color",
  		doc: "The color with which the text will be drawn.",
  		"default": "#000000",
  		transition: true,
  		overridable: true,
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-halo-color": {
  		type: "color",
  		"default": "rgba(0, 0, 0, 0)",
  		transition: true,
  		doc: "The color of the text's halo, which helps it stand out from backgrounds.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-halo-width": {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		transition: true,
  		units: "pixels",
  		doc: "Distance of halo to the font outline. Max text halo width is 1/4 of the font-size.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-halo-blur": {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		transition: true,
  		units: "pixels",
  		doc: "The halo's fadeout distance towards the outside.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  				js: "0.33.0",
  				android: "5.0.0",
  				ios: "3.5.0",
  				macos: "0.4.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"text-translate": {
  		type: "array",
  		value: "number",
  		length: 2,
  		"default": [
  			0,
  			0
  		],
  		transition: true,
  		units: "pixels",
  		doc: "Distance that the text's anchor is moved from its original placement. Positive values indicate right and down, while negative values indicate left and up.",
  		requires: [
  			"text-field"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"text-translate-anchor": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "The text is translated relative to the map."
  			},
  			viewport: {
  				doc: "The text is translated relative to the viewport."
  			}
  		},
  		doc: "Controls the frame of reference for `text-translate`.",
  		"default": "map",
  		requires: [
  			"text-field",
  			"text-translate"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	}
  };
  var paint_raster = {
  	"raster-opacity": {
  		type: "number",
  		doc: "The opacity at which the image will be drawn.",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"raster-hue-rotate": {
  		type: "number",
  		"default": 0,
  		period: 360,
  		transition: true,
  		units: "degrees",
  		doc: "Rotates hues around the color wheel.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"raster-brightness-min": {
  		type: "number",
  		doc: "Increase or reduce the brightness of the image. The value is the minimum brightness.",
  		"default": 0,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"raster-brightness-max": {
  		type: "number",
  		doc: "Increase or reduce the brightness of the image. The value is the maximum brightness.",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"raster-saturation": {
  		type: "number",
  		doc: "Increase or reduce the saturation of the image.",
  		"default": 0,
  		minimum: -1,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"raster-contrast": {
  		type: "number",
  		doc: "Increase or reduce the contrast of the image.",
  		"default": 0,
  		minimum: -1,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"raster-resampling": {
  		type: "enum",
  		doc: "The resampling/interpolation method to use for overscaling, also known as texture magnification filter",
  		values: {
  			linear: {
  				doc: "(Bi)linear filtering interpolates pixel values using the weighted average of the four closest original source pixels creating a smooth but blurry look when overscaled"
  			},
  			nearest: {
  				doc: "Nearest neighbor filtering interpolates pixel values using the nearest original source pixel creating a sharp but pixelated look when overscaled"
  			}
  		},
  		"default": "linear",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.47.0",
  				android: "6.3.0",
  				ios: "4.2.0",
  				macos: "0.9.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"raster-fade-duration": {
  		type: "number",
  		"default": 300,
  		minimum: 0,
  		transition: false,
  		units: "milliseconds",
  		doc: "Fade duration when a new tile is added.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	}
  };
  var paint_hillshade = {
  	"hillshade-illumination-direction": {
  		type: "number",
  		"default": 335,
  		minimum: 0,
  		maximum: 359,
  		doc: "The direction of the light source used to generate the hillshading with 0 as the top of the viewport if `hillshade-illumination-anchor` is set to `viewport` and due north if `hillshade-illumination-anchor` is set to `map`.",
  		transition: false,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.43.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"hillshade-illumination-anchor": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "The hillshade illumination is relative to the north direction."
  			},
  			viewport: {
  				doc: "The hillshade illumination is relative to the top of the viewport."
  			}
  		},
  		"default": "viewport",
  		doc: "Direction of light source when map is rotated.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.43.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"hillshade-exaggeration": {
  		type: "number",
  		doc: "Intensity of the hillshade",
  		"default": 0.5,
  		minimum: 0,
  		maximum: 1,
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.43.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"hillshade-shadow-color": {
  		type: "color",
  		"default": "#000000",
  		doc: "The shading color of areas that face away from the light source.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.43.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"hillshade-highlight-color": {
  		type: "color",
  		"default": "#FFFFFF",
  		doc: "The shading color of areas that faces towards the light source.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.43.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"hillshade-accent-color": {
  		type: "color",
  		"default": "#000000",
  		doc: "The shading color used to accentuate rugged terrain like sharp cliffs and gorges.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.43.0",
  				android: "6.0.0",
  				ios: "4.0.0",
  				macos: "0.7.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	}
  };
  var paint_background = {
  	"background-color": {
  		type: "color",
  		"default": "#000000",
  		doc: "The color with which the background will be drawn.",
  		transition: true,
  		requires: [
  			{
  				"!": "background-pattern"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"background-pattern": {
  		type: "resolvedImage",
  		transition: true,
  		doc: "Name of image in sprite to use for drawing an image background. For seamless patterns, image width and height must be a factor of two (2, 4, 8, ..., 512). Note that zoom-dependent expressions will be evaluated only at integer zoom levels.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			},
  			"data-driven styling": {
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "cross-faded"
  	},
  	"background-opacity": {
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		doc: "The opacity at which the background will be drawn.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.10.0",
  				android: "2.0.1",
  				ios: "2.0.0",
  				macos: "0.1.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	}
  };
  var paint_sky = {
  	"sky-type": {
  		type: "enum",
  		values: {
  			gradient: {
  				doc: "Renders the sky with a gradient that can be configured with `sky-gradient-radius` and `sky-gradient`."
  			},
  			atmosphere: {
  				doc: "Renders the sky with a simulated atmospheric scattering algorithm, the sun direction can be attached to the light position or explicitly set through `sky-atmosphere-sun`."
  			}
  		},
  		"default": "atmosphere",
  		doc: "The type of the sky",
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"sky-atmosphere-sun": {
  		type: "array",
  		value: "number",
  		length: 2,
  		units: "degrees",
  		minimum: [
  			0,
  			0
  		],
  		maximum: [
  			360,
  			180
  		],
  		transition: false,
  		doc: "Position of the sun center [a azimuthal angle, p polar angle]. The azimuthal angle indicates the position of the sun relative to 0° north, where degrees proceed clockwise. The polar angle indicates the height of the sun, where 0° is directly above, at zenith, and 90° at the horizon. When this property is ommitted, the sun center is directly inherited from the light position.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		},
  		requires: [
  			{
  				"sky-type": "atmosphere"
  			}
  		],
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"sky-atmosphere-sun-intensity": {
  		type: "number",
  		requires: [
  			{
  				"sky-type": "atmosphere"
  			}
  		],
  		"default": 10,
  		minimum: 0,
  		maximum: 100,
  		transition: false,
  		doc: "Intensity of the sun as a light source in the atmosphere (on a scale from 0 to a 100). Setting higher values will brighten up the sky.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		},
  		"property-type": "data-constant"
  	},
  	"sky-gradient-center": {
  		type: "array",
  		requires: [
  			{
  				"sky-type": "gradient"
  			}
  		],
  		value: "number",
  		"default": [
  			0,
  			0
  		],
  		length: 2,
  		units: "degrees",
  		minimum: [
  			0,
  			0
  		],
  		maximum: [
  			360,
  			180
  		],
  		transition: false,
  		doc: "Position of the gradient center [a azimuthal angle, p polar angle]. The azimuthal angle indicates the position of the gradient center relative to 0° north, where degrees proceed clockwise. The polar angle indicates the height of the gradient center, where 0° is directly above, at zenith, and 90° at the horizon.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"sky-gradient-radius": {
  		type: "number",
  		requires: [
  			{
  				"sky-type": "gradient"
  			}
  		],
  		"default": 90,
  		minimum: 0,
  		maximum: 180,
  		transition: false,
  		doc: "The angular distance (measured in degrees) from `sky-gradient-center` up to which the gradient extends. A value of 180 causes the gradient to wrap around to the opposite direction from `sky-gradient-center`.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"sky-gradient": {
  		type: "color",
  		"default": [
  			"interpolate",
  			[
  				"linear"
  			],
  			[
  				"sky-radial-progress"
  			],
  			0.8,
  			"#87ceeb",
  			1,
  			"white"
  		],
  		doc: "Defines a radial color gradient with which to color the sky. The color values can be interpolated with an expression using `sky-radial-progress`. The range [0, 1] for the interpolant covers a radial distance (in degrees) of [0, `sky-gradient-radius`] centered at the position specified by `sky-gradient-center`.",
  		transition: false,
  		requires: [
  			{
  				"sky-type": "gradient"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			},
  			"data-driven styling": {
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"sky-radial-progress"
  			]
  		},
  		"property-type": "color-ramp"
  	},
  	"sky-atmosphere-halo-color": {
  		type: "color",
  		"default": "white",
  		doc: "A color applied to the atmosphere sun halo. The alpha channel describes how strongly the sun halo is represented in an atmosphere sky layer.",
  		transition: false,
  		requires: [
  			{
  				"sky-type": "atmosphere"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		},
  		"property-type": "data-constant"
  	},
  	"sky-atmosphere-color": {
  		type: "color",
  		"default": "white",
  		doc: "A color used to tweak the main atmospheric scattering coefficients. Using white applies the default coefficients giving the natural blue color to the atmosphere. This color affects how heavily the corresponding wavelength is represented during scattering. The alpha channel describes the density of the atmosphere, with 1 maximum density and 0 no density.",
  		transition: false,
  		requires: [
  			{
  				"sky-type": "atmosphere"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		},
  		"property-type": "data-constant"
  	},
  	"sky-opacity": {
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		doc: "The opacity of the entire sky layer.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "2.0.0",
  				ios: "10.0.0",
  				android: "10.0.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	}
  };
  var transition = {
  	duration: {
  		type: "number",
  		"default": 300,
  		minimum: 0,
  		units: "milliseconds",
  		doc: "Time allotted for transitions to complete."
  	},
  	delay: {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		units: "milliseconds",
  		doc: "Length of time before a transition begins."
  	}
  };
  var promoteId = {
  	"*": {
  		type: "string",
  		doc: "A name of a feature property to use as ID for feature state."
  	}
  };
  var v8 = {
  	$version: $version,
  	$root: $root,
  	sources: sources,
  	source: source,
  	source_vector: source_vector,
  	source_raster: source_raster,
  	source_raster_dem: source_raster_dem,
  	source_geojson: source_geojson,
  	source_video: source_video,
  	source_image: source_image,
  	layer: layer,
  	layout: layout,
  	layout_background: layout_background,
  	layout_sky: layout_sky,
  	layout_fill: layout_fill,
  	layout_circle: layout_circle,
  	layout_heatmap: layout_heatmap,
  	"layout_fill-extrusion": {
  	visibility: {
  		type: "enum",
  		values: {
  			visible: {
  				doc: "The layer is shown."
  			},
  			none: {
  				doc: "The layer is not shown."
  			}
  		},
  		"default": "visible",
  		doc: "Whether this layer is displayed.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		"property-type": "constant"
  	}
  },
  	layout_line: layout_line,
  	layout_symbol: layout_symbol,
  	layout_raster: layout_raster,
  	layout_hillshade: layout_hillshade,
  	filter: filter,
  	filter_symbol: filter_symbol,
  	filter_fill: filter_fill,
  	filter_line: filter_line,
  	filter_circle: filter_circle,
  	"filter_fill-extrusion": {
  	type: "boolean",
  	doc: "Expression which determines whether or not to display a Polygon. Fill-extrusion layer does NOT support dynamic filtering, meaning this expression can NOT use the `[\"pitch\"]` and `[\"distance-from-center\"]` expressions to reference the current state of the view.",
  	"default": false,
  	transition: false,
  	"property-type": "data-driven",
  	expression: {
  		interpolated: false,
  		parameters: [
  			"zoom",
  			"feature"
  		]
  	}
  },
  	filter_heatmap: filter_heatmap,
  	filter_operator: filter_operator,
  	geometry_type: geometry_type,
  	"function": {
  	expression: {
  		type: "expression",
  		doc: "An expression."
  	},
  	stops: {
  		type: "array",
  		doc: "An array of stops.",
  		value: "function_stop"
  	},
  	base: {
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		doc: "The exponential base of the interpolation curve. It controls the rate at which the result increases. Higher values make the result increase more towards the high end of the range. With `1` the stops are interpolated linearly."
  	},
  	property: {
  		type: "string",
  		doc: "The name of a feature property to use as the function input.",
  		"default": "$zoom"
  	},
  	type: {
  		type: "enum",
  		values: {
  			identity: {
  				doc: "Return the input value as the output value."
  			},
  			exponential: {
  				doc: "Generate an output by interpolating between stops just less than and just greater than the function input."
  			},
  			interval: {
  				doc: "Return the output value of the stop just less than the function input."
  			},
  			categorical: {
  				doc: "Return the output value of the stop equal to the function input."
  			}
  		},
  		doc: "The interpolation strategy to use in function evaluation.",
  		"default": "exponential"
  	},
  	colorSpace: {
  		type: "enum",
  		values: {
  			rgb: {
  				doc: "Use the RGB color space to interpolate color values"
  			},
  			lab: {
  				doc: "Use the LAB color space to interpolate color values."
  			},
  			hcl: {
  				doc: "Use the HCL color space to interpolate color values, interpolating the Hue, Chroma, and Luminance channels individually."
  			}
  		},
  		doc: "The color space in which colors interpolated. Interpolating colors in perceptual color spaces like LAB and HCL tend to produce color ramps that look more consistent and produce colors that can be differentiated more easily than those interpolated in RGB space.",
  		"default": "rgb"
  	},
  	"default": {
  		type: "*",
  		required: false,
  		doc: "A value to serve as a fallback function result when a value isn't otherwise available. It is used in the following circumstances:\n* In categorical functions, when the feature value does not match any of the stop domain values.\n* In property and zoom-and-property functions, when a feature does not contain a value for the specified property.\n* In identity functions, when the feature value is not valid for the style property (for example, if the function is being used for a `circle-color` property but the feature property value is not a string or not a valid color).\n* In interval or exponential property and zoom-and-property functions, when the feature value is not numeric.\nIf no default is provided, the style property's default is used in these circumstances."
  	}
  },
  	function_stop: function_stop,
  	expression: expression,
  	expression_name: expression_name,
  	fog: fog,
  	light: light,
  	projection: projection,
  	terrain: terrain,
  	paint: paint,
  	paint_fill: paint_fill,
  	"paint_fill-extrusion": {
  	"fill-extrusion-opacity": {
  		type: "number",
  		"default": 1,
  		minimum: 0,
  		maximum: 1,
  		doc: "The opacity of the entire fill extrusion layer. This is rendered on a per-layer, not per-feature, basis, and data-driven styling is not available.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"fill-extrusion-color": {
  		type: "color",
  		"default": "#000000",
  		doc: "The base color of the extruded fill. The extrusion's surfaces will be shaded differently based on this color in combination with the root `light` settings. If this color is specified as `rgba` with an alpha component, the alpha component will be ignored; use `fill-extrusion-opacity` to set layer opacity.",
  		transition: true,
  		requires: [
  			{
  				"!": "fill-extrusion-pattern"
  			}
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			},
  			"data-driven styling": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"fill-extrusion-translate": {
  		type: "array",
  		value: "number",
  		length: 2,
  		"default": [
  			0,
  			0
  		],
  		transition: true,
  		units: "pixels",
  		doc: "The geometry's offset. Values are [x, y] where negatives indicate left and up (on the flat plane), respectively.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"fill-extrusion-translate-anchor": {
  		type: "enum",
  		values: {
  			map: {
  				doc: "The fill extrusion is translated relative to the map."
  			},
  			viewport: {
  				doc: "The fill extrusion is translated relative to the viewport."
  			}
  		},
  		doc: "Controls the frame of reference for `fill-extrusion-translate`.",
  		"default": "map",
  		requires: [
  			"fill-extrusion-translate"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	},
  	"fill-extrusion-pattern": {
  		type: "resolvedImage",
  		transition: true,
  		doc: "Name of image in sprite to use for drawing images on extruded fills. For seamless patterns, image width and height must be a factor of two (2, 4, 8, ..., 512). Note that zoom-dependent expressions will be evaluated only at integer zoom levels.",
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			},
  			"data-driven styling": {
  				js: "0.49.0",
  				android: "6.5.0",
  				macos: "0.11.0",
  				ios: "4.4.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom",
  				"feature"
  			]
  		},
  		"property-type": "cross-faded-data-driven"
  	},
  	"fill-extrusion-height": {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		units: "meters",
  		doc: "The height with which to extrude this layer.",
  		transition: true,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			},
  			"data-driven styling": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"fill-extrusion-base": {
  		type: "number",
  		"default": 0,
  		minimum: 0,
  		units: "meters",
  		doc: "The height with which to extrude the base of this layer. Must be less than or equal to `fill-extrusion-height`.",
  		transition: true,
  		requires: [
  			"fill-extrusion-height"
  		],
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			},
  			"data-driven styling": {
  				js: "0.27.0",
  				android: "5.1.0",
  				ios: "3.6.0",
  				macos: "0.5.0"
  			}
  		},
  		expression: {
  			interpolated: true,
  			parameters: [
  				"zoom",
  				"feature",
  				"feature-state"
  			]
  		},
  		"property-type": "data-driven"
  	},
  	"fill-extrusion-vertical-gradient": {
  		type: "boolean",
  		"default": true,
  		doc: "Whether to apply a vertical gradient to the sides of a fill-extrusion layer. If true, sides will be shaded slightly darker farther down.",
  		transition: false,
  		"sdk-support": {
  			"basic functionality": {
  				js: "0.50.0",
  				android: "7.0.0",
  				ios: "4.7.0",
  				macos: "0.13.0"
  			}
  		},
  		expression: {
  			interpolated: false,
  			parameters: [
  				"zoom"
  			]
  		},
  		"property-type": "data-constant"
  	}
  },
  	paint_line: paint_line,
  	paint_circle: paint_circle,
  	paint_heatmap: paint_heatmap,
  	paint_symbol: paint_symbol,
  	paint_raster: paint_raster,
  	paint_hillshade: paint_hillshade,
  	paint_background: paint_background,
  	paint_sky: paint_sky,
  	transition: transition,
  	"property-type": {
  	"data-driven": {
  		type: "property-type",
  		doc: "Property is interpolable and can be represented using a property expression."
  	},
  	"cross-faded": {
  		type: "property-type",
  		doc: "Property is non-interpolable; rather, its values will be cross-faded to smoothly transition between integer zooms."
  	},
  	"cross-faded-data-driven": {
  		type: "property-type",
  		doc: "Property is non-interpolable; rather, its values will be cross-faded to smoothly transition between integer zooms. It can be represented using a property expression."
  	},
  	"color-ramp": {
  		type: "property-type",
  		doc: "Property should be specified using a color ramp from which the output color can be sampled based on a property calculation."
  	},
  	"data-constant": {
  		type: "property-type",
  		doc: "Property is interpolable but cannot be represented using a property expression."
  	},
  	constant: {
  		type: "property-type",
  		doc: "Property is constant across all zoom levels and property values."
  	}
  },
  	promoteId: promoteId
  };

  // Note: This regex matches even invalid JSON strings, but since we’re
  // working on the output of `JSON.stringify` we know that only valid strings
  // are present (unless the user supplied a weird `options.indent` but in
  // that case we don’t care since the output would be invalid anyway).
  var stringOrChar = /("(?:[^\\"]|\\.)*")|[:,]/g;

  var jsonStringifyPrettyCompact = function stringify(passedObj, options) {
    var indent, maxLength, replacer;

    options = options || {};
    indent = JSON.stringify(
      [1],
      undefined,
      options.indent === undefined ? 2 : options.indent
    ).slice(2, -3);
    maxLength =
      indent === ""
        ? Infinity
        : options.maxLength === undefined
        ? 80
        : options.maxLength;
    replacer = options.replacer;

    return (function _stringify(obj, currentIndent, reserved) {
      // prettier-ignore
      var end, index, items, key, keyPart, keys, length, nextIndent, prettified, start, string, value;

      if (obj && typeof obj.toJSON === "function") {
        obj = obj.toJSON();
      }

      string = JSON.stringify(obj, replacer);

      if (string === undefined) {
        return string;
      }

      length = maxLength - currentIndent.length - reserved;

      if (string.length <= length) {
        prettified = string.replace(stringOrChar, function(match, stringLiteral) {
          return stringLiteral || match + " ";
        });
        if (prettified.length <= length) {
          return prettified;
        }
      }

      if (replacer != null) {
        obj = JSON.parse(string);
        replacer = undefined;
      }

      if (typeof obj === "object" && obj !== null) {
        nextIndent = currentIndent + indent;
        items = [];
        index = 0;

        if (Array.isArray(obj)) {
          start = "[";
          end = "]";
          length = obj.length;
          for (; index < length; index++) {
            items.push(
              _stringify(obj[index], nextIndent, index === length - 1 ? 0 : 1) ||
                "null"
            );
          }
        } else {
          start = "{";
          end = "}";
          keys = Object.keys(obj);
          length = keys.length;
          for (; index < length; index++) {
            key = keys[index];
            keyPart = JSON.stringify(key) + ": ";
            value = _stringify(
              obj[key],
              nextIndent,
              keyPart.length + (index === length - 1 ? 0 : 1)
            );
            if (value !== undefined) {
              items.push(keyPart + value);
            }
          }
        }

        if (items.length > 0) {
          return [start, indent + items.join(",\n" + nextIndent), end].join(
            "\n" + currentIndent
          );
        }
      }

      return string;
    })(passedObj, "", 0);
  };

  function sortKeysBy(obj, reference) {
      const result = {};
      for (const key in reference) {
          if (obj[key] !== undefined) {
              result[key] = obj[key];
          }
      }
      for (const key in obj) {
          if (result[key] === undefined) {
              result[key] = obj[key];
          }
      }
      return result;
  }
  function format(style, space = 2) {
      style = sortKeysBy(style, v8.$root);
      if (style.layers) {
          style.layers = style.layers.map(layer => sortKeysBy(layer, v8.layer));
      }
      return jsonStringifyPrettyCompact(style, { indent: space });
  }

  var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof __webpack_require__.g !== 'undefined' ? __webpack_require__.g : typeof self !== 'undefined' ? self : {};

  function createCommonjsModule(fn) {
    var module = { exports: {} };
  	return fn(module, module.exports), module.exports;
  }

  function commonjsRequire (target) {
  	throw new Error('Could not dynamically require "' + target + '". Please configure the dynamicRequireTargets option of @rollup/plugin-commonjs appropriately for this require call to behave properly.');
  }

  /*! https://mths.be/punycode v1.3.2 by @mathias */

  var punycode = createCommonjsModule(function (module, exports) {
  (function(root) {

  	/** Detect free variables */
  	var freeExports = exports &&
  		!exports.nodeType && exports;
  	var freeModule = module &&
  		!module.nodeType && module;
  	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
  	if (
  		freeGlobal.global === freeGlobal ||
  		freeGlobal.window === freeGlobal ||
  		freeGlobal.self === freeGlobal
  	) {
  		root = freeGlobal;
  	}

  	/**
  	 * The `punycode` object.
  	 * @name punycode
  	 * @type Object
  	 */
  	var punycode,

  	/** Highest positive signed 32-bit float value */
  	maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1

  	/** Bootstring parameters */
  	base = 36,
  	tMin = 1,
  	tMax = 26,
  	skew = 38,
  	damp = 700,
  	initialBias = 72,
  	initialN = 128, // 0x80
  	delimiter = '-', // '\x2D'

  	/** Regular expressions */
  	regexPunycode = /^xn--/,
  	regexNonASCII = /[^\x20-\x7E]/, // unprintable ASCII chars + non-ASCII chars
  	regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g, // RFC 3490 separators

  	/** Error messages */
  	errors = {
  		'overflow': 'Overflow: input needs wider integers to process',
  		'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
  		'invalid-input': 'Invalid input'
  	},

  	/** Convenience shortcuts */
  	baseMinusTMin = base - tMin,
  	floor = Math.floor,
  	stringFromCharCode = String.fromCharCode,

  	/** Temporary variable */
  	key;

  	/*--------------------------------------------------------------------------*/

  	/**
  	 * A generic error utility function.
  	 * @private
  	 * @param {String} type The error type.
  	 * @returns {Error} Throws a `RangeError` with the applicable error message.
  	 */
  	function error(type) {
  		throw RangeError(errors[type]);
  	}

  	/**
  	 * A generic `Array#map` utility function.
  	 * @private
  	 * @param {Array} array The array to iterate over.
  	 * @param {Function} callback The function that gets called for every array
  	 * item.
  	 * @returns {Array} A new array of values returned by the callback function.
  	 */
  	function map(array, fn) {
  		var length = array.length;
  		var result = [];
  		while (length--) {
  			result[length] = fn(array[length]);
  		}
  		return result;
  	}

  	/**
  	 * A simple `Array#map`-like wrapper to work with domain name strings or email
  	 * addresses.
  	 * @private
  	 * @param {String} domain The domain name or email address.
  	 * @param {Function} callback The function that gets called for every
  	 * character.
  	 * @returns {Array} A new string of characters returned by the callback
  	 * function.
  	 */
  	function mapDomain(string, fn) {
  		var parts = string.split('@');
  		var result = '';
  		if (parts.length > 1) {
  			// In email addresses, only the domain name should be punycoded. Leave
  			// the local part (i.e. everything up to `@`) intact.
  			result = parts[0] + '@';
  			string = parts[1];
  		}
  		// Avoid `split(regex)` for IE8 compatibility. See #17.
  		string = string.replace(regexSeparators, '\x2E');
  		var labels = string.split('.');
  		var encoded = map(labels, fn).join('.');
  		return result + encoded;
  	}

  	/**
  	 * Creates an array containing the numeric code points of each Unicode
  	 * character in the string. While JavaScript uses UCS-2 internally,
  	 * this function will convert a pair of surrogate halves (each of which
  	 * UCS-2 exposes as separate characters) into a single code point,
  	 * matching UTF-16.
  	 * @see `punycode.ucs2.encode`
  	 * @see <https://mathiasbynens.be/notes/javascript-encoding>
  	 * @memberOf punycode.ucs2
  	 * @name decode
  	 * @param {String} string The Unicode input string (UCS-2).
  	 * @returns {Array} The new array of code points.
  	 */
  	function ucs2decode(string) {
  		var output = [],
  		    counter = 0,
  		    length = string.length,
  		    value,
  		    extra;
  		while (counter < length) {
  			value = string.charCodeAt(counter++);
  			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
  				// high surrogate, and there is a next character
  				extra = string.charCodeAt(counter++);
  				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
  					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
  				} else {
  					// unmatched surrogate; only append this code unit, in case the next
  					// code unit is the high surrogate of a surrogate pair
  					output.push(value);
  					counter--;
  				}
  			} else {
  				output.push(value);
  			}
  		}
  		return output;
  	}

  	/**
  	 * Creates a string based on an array of numeric code points.
  	 * @see `punycode.ucs2.decode`
  	 * @memberOf punycode.ucs2
  	 * @name encode
  	 * @param {Array} codePoints The array of numeric code points.
  	 * @returns {String} The new Unicode string (UCS-2).
  	 */
  	function ucs2encode(array) {
  		return map(array, function(value) {
  			var output = '';
  			if (value > 0xFFFF) {
  				value -= 0x10000;
  				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
  				value = 0xDC00 | value & 0x3FF;
  			}
  			output += stringFromCharCode(value);
  			return output;
  		}).join('');
  	}

  	/**
  	 * Converts a basic code point into a digit/integer.
  	 * @see `digitToBasic()`
  	 * @private
  	 * @param {Number} codePoint The basic numeric code point value.
  	 * @returns {Number} The numeric value of a basic code point (for use in
  	 * representing integers) in the range `0` to `base - 1`, or `base` if
  	 * the code point does not represent a value.
  	 */
  	function basicToDigit(codePoint) {
  		if (codePoint - 48 < 10) {
  			return codePoint - 22;
  		}
  		if (codePoint - 65 < 26) {
  			return codePoint - 65;
  		}
  		if (codePoint - 97 < 26) {
  			return codePoint - 97;
  		}
  		return base;
  	}

  	/**
  	 * Converts a digit/integer into a basic code point.
  	 * @see `basicToDigit()`
  	 * @private
  	 * @param {Number} digit The numeric value of a basic code point.
  	 * @returns {Number} The basic code point whose value (when used for
  	 * representing integers) is `digit`, which needs to be in the range
  	 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
  	 * used; else, the lowercase form is used. The behavior is undefined
  	 * if `flag` is non-zero and `digit` has no uppercase form.
  	 */
  	function digitToBasic(digit, flag) {
  		//  0..25 map to ASCII a..z or A..Z
  		// 26..35 map to ASCII 0..9
  		return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
  	}

  	/**
  	 * Bias adaptation function as per section 3.4 of RFC 3492.
  	 * http://tools.ietf.org/html/rfc3492#section-3.4
  	 * @private
  	 */
  	function adapt(delta, numPoints, firstTime) {
  		var k = 0;
  		delta = firstTime ? floor(delta / damp) : delta >> 1;
  		delta += floor(delta / numPoints);
  		for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
  			delta = floor(delta / baseMinusTMin);
  		}
  		return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
  	}

  	/**
  	 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
  	 * symbols.
  	 * @memberOf punycode
  	 * @param {String} input The Punycode string of ASCII-only symbols.
  	 * @returns {String} The resulting string of Unicode symbols.
  	 */
  	function decode(input) {
  		// Don't use UCS-2
  		var output = [],
  		    inputLength = input.length,
  		    out,
  		    i = 0,
  		    n = initialN,
  		    bias = initialBias,
  		    basic,
  		    j,
  		    index,
  		    oldi,
  		    w,
  		    k,
  		    digit,
  		    t,
  		    /** Cached calculation results */
  		    baseMinusT;

  		// Handle the basic code points: let `basic` be the number of input code
  		// points before the last delimiter, or `0` if there is none, then copy
  		// the first basic code points to the output.

  		basic = input.lastIndexOf(delimiter);
  		if (basic < 0) {
  			basic = 0;
  		}

  		for (j = 0; j < basic; ++j) {
  			// if it's not a basic code point
  			if (input.charCodeAt(j) >= 0x80) {
  				error('not-basic');
  			}
  			output.push(input.charCodeAt(j));
  		}

  		// Main decoding loop: start just after the last delimiter if any basic code
  		// points were copied; start at the beginning otherwise.

  		for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {

  			// `index` is the index of the next character to be consumed.
  			// Decode a generalized variable-length integer into `delta`,
  			// which gets added to `i`. The overflow checking is easier
  			// if we increase `i` as we go, then subtract off its starting
  			// value at the end to obtain `delta`.
  			for (oldi = i, w = 1, k = base; /* no condition */; k += base) {

  				if (index >= inputLength) {
  					error('invalid-input');
  				}

  				digit = basicToDigit(input.charCodeAt(index++));

  				if (digit >= base || digit > floor((maxInt - i) / w)) {
  					error('overflow');
  				}

  				i += digit * w;
  				t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);

  				if (digit < t) {
  					break;
  				}

  				baseMinusT = base - t;
  				if (w > floor(maxInt / baseMinusT)) {
  					error('overflow');
  				}

  				w *= baseMinusT;

  			}

  			out = output.length + 1;
  			bias = adapt(i - oldi, out, oldi == 0);

  			// `i` was supposed to wrap around from `out` to `0`,
  			// incrementing `n` each time, so we'll fix that now:
  			if (floor(i / out) > maxInt - n) {
  				error('overflow');
  			}

  			n += floor(i / out);
  			i %= out;

  			// Insert `n` at position `i` of the output
  			output.splice(i++, 0, n);

  		}

  		return ucs2encode(output);
  	}

  	/**
  	 * Converts a string of Unicode symbols (e.g. a domain name label) to a
  	 * Punycode string of ASCII-only symbols.
  	 * @memberOf punycode
  	 * @param {String} input The string of Unicode symbols.
  	 * @returns {String} The resulting Punycode string of ASCII-only symbols.
  	 */
  	function encode(input) {
  		var n,
  		    delta,
  		    handledCPCount,
  		    basicLength,
  		    bias,
  		    j,
  		    m,
  		    q,
  		    k,
  		    t,
  		    currentValue,
  		    output = [],
  		    /** `inputLength` will hold the number of code points in `input`. */
  		    inputLength,
  		    /** Cached calculation results */
  		    handledCPCountPlusOne,
  		    baseMinusT,
  		    qMinusT;

  		// Convert the input in UCS-2 to Unicode
  		input = ucs2decode(input);

  		// Cache the length
  		inputLength = input.length;

  		// Initialize the state
  		n = initialN;
  		delta = 0;
  		bias = initialBias;

  		// Handle the basic code points
  		for (j = 0; j < inputLength; ++j) {
  			currentValue = input[j];
  			if (currentValue < 0x80) {
  				output.push(stringFromCharCode(currentValue));
  			}
  		}

  		handledCPCount = basicLength = output.length;

  		// `handledCPCount` is the number of code points that have been handled;
  		// `basicLength` is the number of basic code points.

  		// Finish the basic string - if it is not empty - with a delimiter
  		if (basicLength) {
  			output.push(delimiter);
  		}

  		// Main encoding loop:
  		while (handledCPCount < inputLength) {

  			// All non-basic code points < n have been handled already. Find the next
  			// larger one:
  			for (m = maxInt, j = 0; j < inputLength; ++j) {
  				currentValue = input[j];
  				if (currentValue >= n && currentValue < m) {
  					m = currentValue;
  				}
  			}

  			// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
  			// but guard against overflow
  			handledCPCountPlusOne = handledCPCount + 1;
  			if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
  				error('overflow');
  			}

  			delta += (m - n) * handledCPCountPlusOne;
  			n = m;

  			for (j = 0; j < inputLength; ++j) {
  				currentValue = input[j];

  				if (currentValue < n && ++delta > maxInt) {
  					error('overflow');
  				}

  				if (currentValue == n) {
  					// Represent delta as a generalized variable-length integer
  					for (q = delta, k = base; /* no condition */; k += base) {
  						t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
  						if (q < t) {
  							break;
  						}
  						qMinusT = q - t;
  						baseMinusT = base - t;
  						output.push(
  							stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
  						);
  						q = floor(qMinusT / baseMinusT);
  					}

  					output.push(stringFromCharCode(digitToBasic(q, 0)));
  					bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
  					delta = 0;
  					++handledCPCount;
  				}
  			}

  			++delta;
  			++n;

  		}
  		return output.join('');
  	}

  	/**
  	 * Converts a Punycode string representing a domain name or an email address
  	 * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
  	 * it doesn't matter if you call it on a string that has already been
  	 * converted to Unicode.
  	 * @memberOf punycode
  	 * @param {String} input The Punycoded domain name or email address to
  	 * convert to Unicode.
  	 * @returns {String} The Unicode representation of the given Punycode
  	 * string.
  	 */
  	function toUnicode(input) {
  		return mapDomain(input, function(string) {
  			return regexPunycode.test(string)
  				? decode(string.slice(4).toLowerCase())
  				: string;
  		});
  	}

  	/**
  	 * Converts a Unicode string representing a domain name or an email address to
  	 * Punycode. Only the non-ASCII parts of the domain name will be converted,
  	 * i.e. it doesn't matter if you call it with a domain that's already in
  	 * ASCII.
  	 * @memberOf punycode
  	 * @param {String} input The domain name or email address to convert, as a
  	 * Unicode string.
  	 * @returns {String} The Punycode representation of the given domain name or
  	 * email address.
  	 */
  	function toASCII(input) {
  		return mapDomain(input, function(string) {
  			return regexNonASCII.test(string)
  				? 'xn--' + encode(string)
  				: string;
  		});
  	}

  	/*--------------------------------------------------------------------------*/

  	/** Define the public API */
  	punycode = {
  		/**
  		 * A string representing the current Punycode.js version number.
  		 * @memberOf punycode
  		 * @type String
  		 */
  		'version': '1.3.2',
  		/**
  		 * An object of methods to convert from JavaScript's internal character
  		 * representation (UCS-2) to Unicode code points, and back.
  		 * @see <https://mathiasbynens.be/notes/javascript-encoding>
  		 * @memberOf punycode
  		 * @type Object
  		 */
  		'ucs2': {
  			'decode': ucs2decode,
  			'encode': ucs2encode
  		},
  		'decode': decode,
  		'encode': encode,
  		'toASCII': toASCII,
  		'toUnicode': toUnicode
  	};

  	/** Expose `punycode` */
  	// Some AMD build optimizers, like r.js, check for specific condition patterns
  	// like the following:
  	if (freeExports && freeModule) {
  		if (module.exports == freeExports) { // in Node.js or RingoJS v0.8.0+
  			freeModule.exports = punycode;
  		} else { // in Narwhal or RingoJS v0.7.0-
  			for (key in punycode) {
  				punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
  			}
  		}
  	} else { // in Rhino or a web browser
  		root.punycode = punycode;
  	}

  }(commonjsGlobal));
  });

  var util = {
    isString: function(arg) {
      return typeof(arg) === 'string';
    },
    isObject: function(arg) {
      return typeof(arg) === 'object' && arg !== null;
    },
    isNull: function(arg) {
      return arg === null;
    },
    isNullOrUndefined: function(arg) {
      return arg == null;
    }
  };

  // Copyright Joyent, Inc. and other Node contributors.

  // If obj.hasOwnProperty has been overridden, then calling
  // obj.hasOwnProperty(prop) will break.
  // See: https://github.com/joyent/node/issues/1707
  function hasOwnProperty(obj, prop) {
    return Object.prototype.hasOwnProperty.call(obj, prop);
  }

  var decode = function(qs, sep, eq, options) {
    sep = sep || '&';
    eq = eq || '=';
    var obj = {};

    if (typeof qs !== 'string' || qs.length === 0) {
      return obj;
    }

    var regexp = /\+/g;
    qs = qs.split(sep);

    var maxKeys = 1000;
    if (options && typeof options.maxKeys === 'number') {
      maxKeys = options.maxKeys;
    }

    var len = qs.length;
    // maxKeys <= 0 means that we should not limit keys count
    if (maxKeys > 0 && len > maxKeys) {
      len = maxKeys;
    }

    for (var i = 0; i < len; ++i) {
      var x = qs[i].replace(regexp, '%20'),
          idx = x.indexOf(eq),
          kstr, vstr, k, v;

      if (idx >= 0) {
        kstr = x.substr(0, idx);
        vstr = x.substr(idx + 1);
      } else {
        kstr = x;
        vstr = '';
      }

      k = decodeURIComponent(kstr);
      v = decodeURIComponent(vstr);

      if (!hasOwnProperty(obj, k)) {
        obj[k] = v;
      } else if (Array.isArray(obj[k])) {
        obj[k].push(v);
      } else {
        obj[k] = [obj[k], v];
      }
    }

    return obj;
  };

  // Copyright Joyent, Inc. and other Node contributors.

  var stringifyPrimitive = function(v) {
    switch (typeof v) {
      case 'string':
        return v;

      case 'boolean':
        return v ? 'true' : 'false';

      case 'number':
        return isFinite(v) ? v : '';

      default:
        return '';
    }
  };

  var encode = function(obj, sep, eq, name) {
    sep = sep || '&';
    eq = eq || '=';
    if (obj === null) {
      obj = undefined;
    }

    if (typeof obj === 'object') {
      return Object.keys(obj).map(function(k) {
        var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;
        if (Array.isArray(obj[k])) {
          return obj[k].map(function(v) {
            return ks + encodeURIComponent(stringifyPrimitive(v));
          }).join(sep);
        } else {
          return ks + encodeURIComponent(stringifyPrimitive(obj[k]));
        }
      }).join(sep);

    }

    if (!name) return '';
    return encodeURIComponent(stringifyPrimitive(name)) + eq +
           encodeURIComponent(stringifyPrimitive(obj));
  };

  var querystring = createCommonjsModule(function (module, exports) {

  exports.decode = exports.parse = decode;
  exports.encode = exports.stringify = encode;
  });

  var parse = urlParse;
  var resolve = urlResolve;
  var resolveObject = urlResolveObject;
  var format$1 = urlFormat;

  var Url_1 = Url;

  function Url() {
    this.protocol = null;
    this.slashes = null;
    this.auth = null;
    this.host = null;
    this.port = null;
    this.hostname = null;
    this.hash = null;
    this.search = null;
    this.query = null;
    this.pathname = null;
    this.path = null;
    this.href = null;
  }

  // Reference: RFC 3986, RFC 1808, RFC 2396

  // define these here so at least they only have to be
  // compiled once on the first module load.
  var protocolPattern = /^([a-z0-9.+-]+:)/i,
      portPattern = /:[0-9]*$/,

      // Special case for a simple path URL
      simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/,

      // RFC 2396: characters reserved for delimiting URLs.
      // We actually just auto-escape these.
      delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t'],

      // RFC 2396: characters not allowed for various reasons.
      unwise = ['{', '}', '|', '\\', '^', '`'].concat(delims),

      // Allowed by RFCs, but cause of XSS attacks.  Always escape these.
      autoEscape = ['\''].concat(unwise),
      // Characters that are never ever allowed in a hostname.
      // Note that any invalid chars are also handled, but these
      // are the ones that are *expected* to be seen, so we fast-path
      // them.
      nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),
      hostEndingChars = ['/', '?', '#'],
      hostnameMaxLen = 255,
      hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,
      hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,
      // protocols that can allow "unsafe" and "unwise" chars.
      unsafeProtocol = {
        'javascript': true,
        'javascript:': true
      },
      // protocols that never have a hostname.
      hostlessProtocol = {
        'javascript': true,
        'javascript:': true
      },
      // protocols that always contain a // bit.
      slashedProtocol = {
        'http': true,
        'https': true,
        'ftp': true,
        'gopher': true,
        'file': true,
        'http:': true,
        'https:': true,
        'ftp:': true,
        'gopher:': true,
        'file:': true
      };

  function urlParse(url, parseQueryString, slashesDenoteHost) {
    if (url && util.isObject(url) && url instanceof Url) return url;

    var u = new Url;
    u.parse(url, parseQueryString, slashesDenoteHost);
    return u;
  }

  Url.prototype.parse = function(url, parseQueryString, slashesDenoteHost) {
    if (!util.isString(url)) {
      throw new TypeError("Parameter 'url' must be a string, not " + typeof url);
    }

    // Copy chrome, IE, opera backslash-handling behavior.
    // Back slashes before the query string get converted to forward slashes
    // See: https://code.google.com/p/chromium/issues/detail?id=25916
    var queryIndex = url.indexOf('?'),
        splitter =
            (queryIndex !== -1 && queryIndex < url.indexOf('#')) ? '?' : '#',
        uSplit = url.split(splitter),
        slashRegex = /\\/g;
    uSplit[0] = uSplit[0].replace(slashRegex, '/');
    url = uSplit.join(splitter);

    var rest = url;

    // trim before proceeding.
    // This is to support parse stuff like "  http://foo.com  \n"
    rest = rest.trim();

    if (!slashesDenoteHost && url.split('#').length === 1) {
      // Try fast path regexp
      var simplePath = simplePathPattern.exec(rest);
      if (simplePath) {
        this.path = rest;
        this.href = rest;
        this.pathname = simplePath[1];
        if (simplePath[2]) {
          this.search = simplePath[2];
          if (parseQueryString) {
            this.query = querystring.parse(this.search.substr(1));
          } else {
            this.query = this.search.substr(1);
          }
        } else if (parseQueryString) {
          this.search = '';
          this.query = {};
        }
        return this;
      }
    }

    var proto = protocolPattern.exec(rest);
    if (proto) {
      proto = proto[0];
      var lowerProto = proto.toLowerCase();
      this.protocol = lowerProto;
      rest = rest.substr(proto.length);
    }

    // figure out if it's got a host
    // user@server is *always* interpreted as a hostname, and url
    // resolution will treat //foo/bar as host=foo,path=bar because that's
    // how the browser resolves relative URLs.
    if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
      var slashes = rest.substr(0, 2) === '//';
      if (slashes && !(proto && hostlessProtocol[proto])) {
        rest = rest.substr(2);
        this.slashes = true;
      }
    }

    if (!hostlessProtocol[proto] &&
        (slashes || (proto && !slashedProtocol[proto]))) {

      // there's a hostname.
      // the first instance of /, ?, ;, or # ends the host.
      //
      // If there is an @ in the hostname, then non-host chars *are* allowed
      // to the left of the last @ sign, unless some host-ending character
      // comes *before* the @-sign.
      // URLs are obnoxious.
      //
      // ex:
      // http://a@b@c/ => user:a@b host:c
      // http://a@b?@c => user:a host:c path:/?@c

      // v0.12 TODO(isaacs): This is not quite how Chrome does things.
      // Review our test case against browsers more comprehensively.

      // find the first instance of any hostEndingChars
      var hostEnd = -1;
      for (var i = 0; i < hostEndingChars.length; i++) {
        var hec = rest.indexOf(hostEndingChars[i]);
        if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
          hostEnd = hec;
      }

      // at this point, either we have an explicit point where the
      // auth portion cannot go past, or the last @ char is the decider.
      var auth, atSign;
      if (hostEnd === -1) {
        // atSign can be anywhere.
        atSign = rest.lastIndexOf('@');
      } else {
        // atSign must be in auth portion.
        // http://a@b/c@d => host:b auth:a path:/c@d
        atSign = rest.lastIndexOf('@', hostEnd);
      }

      // Now we have a portion which is definitely the auth.
      // Pull that off.
      if (atSign !== -1) {
        auth = rest.slice(0, atSign);
        rest = rest.slice(atSign + 1);
        this.auth = decodeURIComponent(auth);
      }

      // the host is the remaining to the left of the first non-host char
      hostEnd = -1;
      for (var i = 0; i < nonHostChars.length; i++) {
        var hec = rest.indexOf(nonHostChars[i]);
        if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
          hostEnd = hec;
      }
      // if we still have not hit it, then the entire thing is a host.
      if (hostEnd === -1)
        hostEnd = rest.length;

      this.host = rest.slice(0, hostEnd);
      rest = rest.slice(hostEnd);

      // pull out port.
      this.parseHost();

      // we've indicated that there is a hostname,
      // so even if it's empty, it has to be present.
      this.hostname = this.hostname || '';

      // if hostname begins with [ and ends with ]
      // assume that it's an IPv6 address.
      var ipv6Hostname = this.hostname[0] === '[' &&
          this.hostname[this.hostname.length - 1] === ']';

      // validate a little.
      if (!ipv6Hostname) {
        var hostparts = this.hostname.split(/\./);
        for (var i = 0, l = hostparts.length; i < l; i++) {
          var part = hostparts[i];
          if (!part) continue;
          if (!part.match(hostnamePartPattern)) {
            var newpart = '';
            for (var j = 0, k = part.length; j < k; j++) {
              if (part.charCodeAt(j) > 127) {
                // we replace non-ASCII char with a temporary placeholder
                // we need this to make sure size of hostname is not
                // broken by replacing non-ASCII by nothing
                newpart += 'x';
              } else {
                newpart += part[j];
              }
            }
            // we test again with ASCII char only
            if (!newpart.match(hostnamePartPattern)) {
              var validParts = hostparts.slice(0, i);
              var notHost = hostparts.slice(i + 1);
              var bit = part.match(hostnamePartStart);
              if (bit) {
                validParts.push(bit[1]);
                notHost.unshift(bit[2]);
              }
              if (notHost.length) {
                rest = '/' + notHost.join('.') + rest;
              }
              this.hostname = validParts.join('.');
              break;
            }
          }
        }
      }

      if (this.hostname.length > hostnameMaxLen) {
        this.hostname = '';
      } else {
        // hostnames are always lower case.
        this.hostname = this.hostname.toLowerCase();
      }

      if (!ipv6Hostname) {
        // IDNA Support: Returns a punycoded representation of "domain".
        // It only converts parts of the domain name that
        // have non-ASCII characters, i.e. it doesn't matter if
        // you call it with a domain that already is ASCII-only.
        this.hostname = punycode.toASCII(this.hostname);
      }

      var p = this.port ? ':' + this.port : '';
      var h = this.hostname || '';
      this.host = h + p;
      this.href += this.host;

      // strip [ and ] from the hostname
      // the host field still retains them, though
      if (ipv6Hostname) {
        this.hostname = this.hostname.substr(1, this.hostname.length - 2);
        if (rest[0] !== '/') {
          rest = '/' + rest;
        }
      }
    }

    // now rest is set to the post-host stuff.
    // chop off any delim chars.
    if (!unsafeProtocol[lowerProto]) {

      // First, make 100% sure that any "autoEscape" chars get
      // escaped, even if encodeURIComponent doesn't think they
      // need to be.
      for (var i = 0, l = autoEscape.length; i < l; i++) {
        var ae = autoEscape[i];
        if (rest.indexOf(ae) === -1)
          continue;
        var esc = encodeURIComponent(ae);
        if (esc === ae) {
          esc = escape(ae);
        }
        rest = rest.split(ae).join(esc);
      }
    }


    // chop off from the tail first.
    var hash = rest.indexOf('#');
    if (hash !== -1) {
      // got a fragment string.
      this.hash = rest.substr(hash);
      rest = rest.slice(0, hash);
    }
    var qm = rest.indexOf('?');
    if (qm !== -1) {
      this.search = rest.substr(qm);
      this.query = rest.substr(qm + 1);
      if (parseQueryString) {
        this.query = querystring.parse(this.query);
      }
      rest = rest.slice(0, qm);
    } else if (parseQueryString) {
      // no query string, but parseQueryString still requested
      this.search = '';
      this.query = {};
    }
    if (rest) this.pathname = rest;
    if (slashedProtocol[lowerProto] &&
        this.hostname && !this.pathname) {
      this.pathname = '/';
    }

    //to support http.request
    if (this.pathname || this.search) {
      var p = this.pathname || '';
      var s = this.search || '';
      this.path = p + s;
    }

    // finally, reconstruct the href based on what has been validated.
    this.href = this.format();
    return this;
  };

  // format a parsed object into a url string
  function urlFormat(obj) {
    // ensure it's an object, and not a string url.
    // If it's an obj, this is a no-op.
    // this way, you can call url_format() on strings
    // to clean up potentially wonky urls.
    if (util.isString(obj)) obj = urlParse(obj);
    if (!(obj instanceof Url)) return Url.prototype.format.call(obj);
    return obj.format();
  }

  Url.prototype.format = function() {
    var auth = this.auth || '';
    if (auth) {
      auth = encodeURIComponent(auth);
      auth = auth.replace(/%3A/i, ':');
      auth += '@';
    }

    var protocol = this.protocol || '',
        pathname = this.pathname || '',
        hash = this.hash || '',
        host = false,
        query = '';

    if (this.host) {
      host = auth + this.host;
    } else if (this.hostname) {
      host = auth + (this.hostname.indexOf(':') === -1 ?
          this.hostname :
          '[' + this.hostname + ']');
      if (this.port) {
        host += ':' + this.port;
      }
    }

    if (this.query &&
        util.isObject(this.query) &&
        Object.keys(this.query).length) {
      query = querystring.stringify(this.query);
    }

    var search = this.search || (query && ('?' + query)) || '';

    if (protocol && protocol.substr(-1) !== ':') protocol += ':';

    // only the slashedProtocols get the //.  Not mailto:, xmpp:, etc.
    // unless they had them to begin with.
    if (this.slashes ||
        (!protocol || slashedProtocol[protocol]) && host !== false) {
      host = '//' + (host || '');
      if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;
    } else if (!host) {
      host = '';
    }

    if (hash && hash.charAt(0) !== '#') hash = '#' + hash;
    if (search && search.charAt(0) !== '?') search = '?' + search;

    pathname = pathname.replace(/[?#]/g, function(match) {
      return encodeURIComponent(match);
    });
    search = search.replace('#', '%23');

    return protocol + host + pathname + search + hash;
  };

  function urlResolve(source, relative) {
    return urlParse(source, false, true).resolve(relative);
  }

  Url.prototype.resolve = function(relative) {
    return this.resolveObject(urlParse(relative, false, true)).format();
  };

  function urlResolveObject(source, relative) {
    if (!source) return relative;
    return urlParse(source, false, true).resolveObject(relative);
  }

  Url.prototype.resolveObject = function(relative) {
    if (util.isString(relative)) {
      var rel = new Url();
      rel.parse(relative, false, true);
      relative = rel;
    }

    var result = new Url();
    var tkeys = Object.keys(this);
    for (var tk = 0; tk < tkeys.length; tk++) {
      var tkey = tkeys[tk];
      result[tkey] = this[tkey];
    }

    // hash is always overridden, no matter what.
    // even href="" will remove it.
    result.hash = relative.hash;

    // if the relative url is empty, then there's nothing left to do here.
    if (relative.href === '') {
      result.href = result.format();
      return result;
    }

    // hrefs like //foo/bar always cut to the protocol.
    if (relative.slashes && !relative.protocol) {
      // take everything except the protocol from relative
      var rkeys = Object.keys(relative);
      for (var rk = 0; rk < rkeys.length; rk++) {
        var rkey = rkeys[rk];
        if (rkey !== 'protocol')
          result[rkey] = relative[rkey];
      }

      //urlParse appends trailing / to urls like http://www.example.com
      if (slashedProtocol[result.protocol] &&
          result.hostname && !result.pathname) {
        result.path = result.pathname = '/';
      }

      result.href = result.format();
      return result;
    }

    if (relative.protocol && relative.protocol !== result.protocol) {
      // if it's a known url protocol, then changing
      // the protocol does weird things
      // first, if it's not file:, then we MUST have a host,
      // and if there was a path
      // to begin with, then we MUST have a path.
      // if it is file:, then the host is dropped,
      // because that's known to be hostless.
      // anything else is assumed to be absolute.
      if (!slashedProtocol[relative.protocol]) {
        var keys = Object.keys(relative);
        for (var v = 0; v < keys.length; v++) {
          var k = keys[v];
          result[k] = relative[k];
        }
        result.href = result.format();
        return result;
      }

      result.protocol = relative.protocol;
      if (!relative.host && !hostlessProtocol[relative.protocol]) {
        var relPath = (relative.pathname || '').split('/');
        while (relPath.length && !(relative.host = relPath.shift()));
        if (!relative.host) relative.host = '';
        if (!relative.hostname) relative.hostname = '';
        if (relPath[0] !== '') relPath.unshift('');
        if (relPath.length < 2) relPath.unshift('');
        result.pathname = relPath.join('/');
      } else {
        result.pathname = relative.pathname;
      }
      result.search = relative.search;
      result.query = relative.query;
      result.host = relative.host || '';
      result.auth = relative.auth;
      result.hostname = relative.hostname || relative.host;
      result.port = relative.port;
      // to support http.request
      if (result.pathname || result.search) {
        var p = result.pathname || '';
        var s = result.search || '';
        result.path = p + s;
      }
      result.slashes = result.slashes || relative.slashes;
      result.href = result.format();
      return result;
    }

    var isSourceAbs = (result.pathname && result.pathname.charAt(0) === '/'),
        isRelAbs = (
            relative.host ||
            relative.pathname && relative.pathname.charAt(0) === '/'
        ),
        mustEndAbs = (isRelAbs || isSourceAbs ||
                      (result.host && relative.pathname)),
        removeAllDots = mustEndAbs,
        srcPath = result.pathname && result.pathname.split('/') || [],
        relPath = relative.pathname && relative.pathname.split('/') || [],
        psychotic = result.protocol && !slashedProtocol[result.protocol];

    // if the url is a non-slashed url, then relative
    // links like ../.. should be able
    // to crawl up to the hostname, as well.  This is strange.
    // result.protocol has already been set by now.
    // Later on, put the first path part into the host field.
    if (psychotic) {
      result.hostname = '';
      result.port = null;
      if (result.host) {
        if (srcPath[0] === '') srcPath[0] = result.host;
        else srcPath.unshift(result.host);
      }
      result.host = '';
      if (relative.protocol) {
        relative.hostname = null;
        relative.port = null;
        if (relative.host) {
          if (relPath[0] === '') relPath[0] = relative.host;
          else relPath.unshift(relative.host);
        }
        relative.host = null;
      }
      mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');
    }

    if (isRelAbs) {
      // it's absolute.
      result.host = (relative.host || relative.host === '') ?
                    relative.host : result.host;
      result.hostname = (relative.hostname || relative.hostname === '') ?
                        relative.hostname : result.hostname;
      result.search = relative.search;
      result.query = relative.query;
      srcPath = relPath;
      // fall through to the dot-handling below.
    } else if (relPath.length) {
      // it's relative
      // throw away the existing file, and take the new path instead.
      if (!srcPath) srcPath = [];
      srcPath.pop();
      srcPath = srcPath.concat(relPath);
      result.search = relative.search;
      result.query = relative.query;
    } else if (!util.isNullOrUndefined(relative.search)) {
      // just pull out the search.
      // like href='?foo'.
      // Put this after the other two cases because it simplifies the booleans
      if (psychotic) {
        result.hostname = result.host = srcPath.shift();
        //occationaly the auth can get stuck only in host
        //this especially happens in cases like
        //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
        var authInHost = result.host && result.host.indexOf('@') > 0 ?
                         result.host.split('@') : false;
        if (authInHost) {
          result.auth = authInHost.shift();
          result.host = result.hostname = authInHost.shift();
        }
      }
      result.search = relative.search;
      result.query = relative.query;
      //to support http.request
      if (!util.isNull(result.pathname) || !util.isNull(result.search)) {
        result.path = (result.pathname ? result.pathname : '') +
                      (result.search ? result.search : '');
      }
      result.href = result.format();
      return result;
    }

    if (!srcPath.length) {
      // no path at all.  easy.
      // we've already handled the other stuff above.
      result.pathname = null;
      //to support http.request
      if (result.search) {
        result.path = '/' + result.search;
      } else {
        result.path = null;
      }
      result.href = result.format();
      return result;
    }

    // if a url ENDs in . or .., then it must get a trailing slash.
    // however, if it ends in anything else non-slashy,
    // then it must NOT get a trailing slash.
    var last = srcPath.slice(-1)[0];
    var hasTrailingSlash = (
        (result.host || relative.host || srcPath.length > 1) &&
        (last === '.' || last === '..') || last === '');

    // strip single dots, resolve double dots to parent dir
    // if the path tries to go above the root, `up` ends up > 0
    var up = 0;
    for (var i = srcPath.length; i >= 0; i--) {
      last = srcPath[i];
      if (last === '.') {
        srcPath.splice(i, 1);
      } else if (last === '..') {
        srcPath.splice(i, 1);
        up++;
      } else if (up) {
        srcPath.splice(i, 1);
        up--;
      }
    }

    // if the path is allowed to go above the root, restore leading ..s
    if (!mustEndAbs && !removeAllDots) {
      for (; up--; up) {
        srcPath.unshift('..');
      }
    }

    if (mustEndAbs && srcPath[0] !== '' &&
        (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {
      srcPath.unshift('');
    }

    if (hasTrailingSlash && (srcPath.join('/').substr(-1) !== '/')) {
      srcPath.push('');
    }

    var isAbsolute = srcPath[0] === '' ||
        (srcPath[0] && srcPath[0].charAt(0) === '/');

    // put the host back
    if (psychotic) {
      result.hostname = result.host = isAbsolute ? '' :
                                      srcPath.length ? srcPath.shift() : '';
      //occationaly the auth can get stuck only in host
      //this especially happens in cases like
      //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
      var authInHost = result.host && result.host.indexOf('@') > 0 ?
                       result.host.split('@') : false;
      if (authInHost) {
        result.auth = authInHost.shift();
        result.host = result.hostname = authInHost.shift();
      }
    }

    mustEndAbs = mustEndAbs || (result.host && srcPath.length);

    if (mustEndAbs && !isAbsolute) {
      srcPath.unshift('');
    }

    if (!srcPath.length) {
      result.pathname = null;
      result.path = null;
    } else {
      result.pathname = srcPath.join('/');
    }

    //to support request.http
    if (!util.isNull(result.pathname) || !util.isNull(result.search)) {
      result.path = (result.pathname ? result.pathname : '') +
                    (result.search ? result.search : '');
    }
    result.auth = relative.auth || result.auth;
    result.slashes = result.slashes || relative.slashes;
    result.href = result.format();
    return result;
  };

  Url.prototype.parseHost = function() {
    var host = this.host;
    var port = portPattern.exec(host);
    if (port) {
      port = port[0];
      if (port !== ':') {
        this.port = port.substr(1);
      }
      host = host.substr(0, host.length - port.length);
    }
    if (host) this.hostname = host;
  };

  var url = {
  	parse: parse,
  	resolve: resolve,
  	resolveObject: resolveObject,
  	format: format$1,
  	Url: Url_1
  };

  function getPropertyReference(propertyName) {
      for (let i = 0; i < v8.layout.length; i++) {
          for (const key in v8[v8.layout[i]]) {
              if (key === propertyName)
                  return v8[v8.layout[i]][key];
          }
      }
      for (let i = 0; i < v8.paint.length; i++) {
          for (const key in v8[v8.paint[i]]) {
              if (key === propertyName)
                  return v8[v8.paint[i]][key];
          }
      }
      return null;
  }
  function eachSource(style, callback) {
      for (const k in style.sources) {
          callback(style.sources[k]);
      }
  }
  function eachLayer(style, callback) {
      for (const layer of style.layers) {
          callback(layer);
      }
  }
  function eachProperty(style, options, callback) {
      function inner(layer, propertyType) {
          const properties = layer[propertyType];
          if (!properties)
              return;
          Object.keys(properties).forEach(key => {
              callback({
                  path: [
                      layer.id,
                      propertyType,
                      key
                  ],
                  key,
                  value: properties[key],
                  reference: getPropertyReference(key),
                  set(x) {
                      properties[key] = x;
                  }
              });
          });
      }
      eachLayer(style, layer => {
          if (options.paint) {
              inner(layer, 'paint');
          }
          if (options.layout) {
              inner(layer, 'layout');
          }
      });
  }

  function eachLayout(layer, callback) {
      for (const k in layer) {
          if (k.indexOf('layout') === 0) {
              callback(layer[k], k);
          }
      }
  }
  function eachPaint(layer, callback) {
      for (const k in layer) {
          if (k.indexOf('paint') === 0) {
              callback(layer[k], k);
          }
      }
  }
  function resolveConstant(style, value) {
      if (typeof value === 'string' && value[0] === '@') {
          return resolveConstant(style, style.constants[value]);
      } else {
          return value;
      }
  }
  function isFunction(value) {
      return Array.isArray(value.stops);
  }
  function renameProperty(obj, from, to) {
      obj[to] = obj[from];
      delete obj[from];
  }
  function migrateToV8 (style) {
      style.version = 8;
      eachSource(style, source => {
          if (source.type === 'video' && source.url !== undefined) {
              renameProperty(source, 'url', 'urls');
          }
          if (source.type === 'video') {
              source.coordinates.forEach(coord => {
                  return coord.reverse();
              });
          }
      });
      eachLayer(style, layer => {
          eachLayout(layer, layout => {
              if (layout['symbol-min-distance'] !== undefined) {
                  renameProperty(layout, 'symbol-min-distance', 'symbol-spacing');
              }
          });
          eachPaint(layer, paint => {
              if (paint['background-image'] !== undefined) {
                  renameProperty(paint, 'background-image', 'background-pattern');
              }
              if (paint['line-image'] !== undefined) {
                  renameProperty(paint, 'line-image', 'line-pattern');
              }
              if (paint['fill-image'] !== undefined) {
                  renameProperty(paint, 'fill-image', 'fill-pattern');
              }
          });
      });
      eachProperty(style, {
          paint: true,
          layout: true
      }, property => {
          const value = resolveConstant(style, property.value);
          if (isFunction(value)) {
              value.stops.forEach(stop => {
                  stop[1] = resolveConstant(style, stop[1]);
              });
          }
          property.set(value);
      });
      delete style.constants;
      eachLayer(style, layer => {
          eachLayout(layer, layout => {
              delete layout['text-max-size'];
              delete layout['icon-max-size'];
          });
          eachPaint(layer, paint => {
              if (paint['text-size']) {
                  if (!layer.layout)
                      layer.layout = {};
                  layer.layout['text-size'] = paint['text-size'];
                  delete paint['text-size'];
              }
              if (paint['icon-size']) {
                  if (!layer.layout)
                      layer.layout = {};
                  layer.layout['icon-size'] = paint['icon-size'];
                  delete paint['icon-size'];
              }
          });
      });
      function migrateFontstackURL(input) {
          const inputParsed = url.parse(input);
          const inputPathnameParts = inputParsed.pathname.split('/');
          if (inputParsed.protocol !== 'mapbox:') {
              return input;
          } else if (inputParsed.hostname === 'fontstack') {
              return 'mapbox://fonts/mapbox/{fontstack}/{range}.pbf';
          } else if (inputParsed.hostname === 'fonts') {
              return `mapbox://fonts/${ inputPathnameParts[2] }/{fontstack}/{range}.pbf`;
          } else ;
      }
      if (style.glyphs) {
          style.glyphs = migrateFontstackURL(style.glyphs);
      }
      function migrateFontStack(font) {
          function splitAndTrim(string) {
              return string.split(',').map(s => {
                  return s.trim();
              });
          }
          if (Array.isArray(font)) {
              return font;
          } else if (typeof font === 'string') {
              return splitAndTrim(font);
          } else if (typeof font === 'object') {
              font.stops.forEach(stop => {
                  stop[1] = splitAndTrim(stop[1]);
              });
              return font;
          } else {
              throw new Error('unexpected font value');
          }
      }
      eachLayer(style, layer => {
          eachLayout(layer, layout => {
              if (layout['text-font']) {
                  layout['text-font'] = migrateFontStack(layout['text-font']);
              }
          });
      });
      let firstSymbolLayer = 0;
      for (let i = style.layers.length - 1; i >= 0; i--) {
          const layer = style.layers[i];
          if (layer.type !== 'symbol') {
              firstSymbolLayer = i + 1;
              break;
          }
      }
      const symbolLayers = style.layers.splice(firstSymbolLayer);
      symbolLayers.reverse();
      style.layers = style.layers.concat(symbolLayers);
      return style;
  }

  function extend (output, ...inputs) {
      for (const input of inputs) {
          for (const k in input) {
              output[k] = input[k];
          }
      }
      return output;
  }

  class ParsingError extends Error {
      constructor(key, message) {
          super(message);
          this.message = message;
          this.key = key;
      }
  }

  class Scope {
      constructor(parent, bindings = []) {
          this.parent = parent;
          this.bindings = {};
          for (const [name, expression] of bindings) {
              this.bindings[name] = expression;
          }
      }
      concat(bindings) {
          return new Scope(this, bindings);
      }
      get(name) {
          if (this.bindings[name]) {
              return this.bindings[name];
          }
          if (this.parent) {
              return this.parent.get(name);
          }
          throw new Error(`${ name } not found in scope.`);
      }
      has(name) {
          if (this.bindings[name])
              return true;
          return this.parent ? this.parent.has(name) : false;
      }
  }

  const NullType = { kind: 'null' };
  const NumberType = { kind: 'number' };
  const StringType = { kind: 'string' };
  const BooleanType = { kind: 'boolean' };
  const ColorType = { kind: 'color' };
  const ObjectType = { kind: 'object' };
  const ValueType = { kind: 'value' };
  const ErrorType = { kind: 'error' };
  const CollatorType = { kind: 'collator' };
  const FormattedType = { kind: 'formatted' };
  const ResolvedImageType = { kind: 'resolvedImage' };
  function array(itemType, N) {
      return {
          kind: 'array',
          itemType,
          N
      };
  }
  function toString(type) {
      if (type.kind === 'array') {
          const itemType = toString(type.itemType);
          return typeof type.N === 'number' ? `array<${ itemType }, ${ type.N }>` : type.itemType.kind === 'value' ? 'array' : `array<${ itemType }>`;
      } else {
          return type.kind;
      }
  }
  const valueMemberTypes = [
      NullType,
      NumberType,
      StringType,
      BooleanType,
      ColorType,
      FormattedType,
      ObjectType,
      array(ValueType),
      ResolvedImageType
  ];
  function checkSubtype(expected, t) {
      if (t.kind === 'error') {
          return null;
      } else if (expected.kind === 'array') {
          if (t.kind === 'array' && (t.N === 0 && t.itemType.kind === 'value' || !checkSubtype(expected.itemType, t.itemType)) && (typeof expected.N !== 'number' || expected.N === t.N)) {
              return null;
          }
      } else if (expected.kind === t.kind) {
          return null;
      } else if (expected.kind === 'value') {
          for (const memberType of valueMemberTypes) {
              if (!checkSubtype(memberType, t)) {
                  return null;
              }
          }
      }
      return `Expected ${ toString(expected) } but found ${ toString(t) } instead.`;
  }
  function isValidType(provided, allowedTypes) {
      return allowedTypes.some(t => t.kind === provided.kind);
  }
  function isValidNativeType(provided, allowedTypes) {
      return allowedTypes.some(t => {
          if (t === 'null') {
              return provided === null;
          } else if (t === 'array') {
              return Array.isArray(provided);
          } else if (t === 'object') {
              return provided && !Array.isArray(provided) && typeof provided === 'object';
          } else {
              return t === typeof provided;
          }
      });
  }

  var csscolorparser = createCommonjsModule(function (module, exports) {
  // (c) Dean McNamee <dean@gmail.com>, 2012.
  //
  // https://github.com/deanm/css-color-parser-js
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to
  // deal in the Software without restriction, including without limitation the
  // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  // sell copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  // IN THE SOFTWARE.

  // http://www.w3.org/TR/css3-color/
  var kCSSColorTable = {
    "transparent": [0,0,0,0], "aliceblue": [240,248,255,1],
    "antiquewhite": [250,235,215,1], "aqua": [0,255,255,1],
    "aquamarine": [127,255,212,1], "azure": [240,255,255,1],
    "beige": [245,245,220,1], "bisque": [255,228,196,1],
    "black": [0,0,0,1], "blanchedalmond": [255,235,205,1],
    "blue": [0,0,255,1], "blueviolet": [138,43,226,1],
    "brown": [165,42,42,1], "burlywood": [222,184,135,1],
    "cadetblue": [95,158,160,1], "chartreuse": [127,255,0,1],
    "chocolate": [210,105,30,1], "coral": [255,127,80,1],
    "cornflowerblue": [100,149,237,1], "cornsilk": [255,248,220,1],
    "crimson": [220,20,60,1], "cyan": [0,255,255,1],
    "darkblue": [0,0,139,1], "darkcyan": [0,139,139,1],
    "darkgoldenrod": [184,134,11,1], "darkgray": [169,169,169,1],
    "darkgreen": [0,100,0,1], "darkgrey": [169,169,169,1],
    "darkkhaki": [189,183,107,1], "darkmagenta": [139,0,139,1],
    "darkolivegreen": [85,107,47,1], "darkorange": [255,140,0,1],
    "darkorchid": [153,50,204,1], "darkred": [139,0,0,1],
    "darksalmon": [233,150,122,1], "darkseagreen": [143,188,143,1],
    "darkslateblue": [72,61,139,1], "darkslategray": [47,79,79,1],
    "darkslategrey": [47,79,79,1], "darkturquoise": [0,206,209,1],
    "darkviolet": [148,0,211,1], "deeppink": [255,20,147,1],
    "deepskyblue": [0,191,255,1], "dimgray": [105,105,105,1],
    "dimgrey": [105,105,105,1], "dodgerblue": [30,144,255,1],
    "firebrick": [178,34,34,1], "floralwhite": [255,250,240,1],
    "forestgreen": [34,139,34,1], "fuchsia": [255,0,255,1],
    "gainsboro": [220,220,220,1], "ghostwhite": [248,248,255,1],
    "gold": [255,215,0,1], "goldenrod": [218,165,32,1],
    "gray": [128,128,128,1], "green": [0,128,0,1],
    "greenyellow": [173,255,47,1], "grey": [128,128,128,1],
    "honeydew": [240,255,240,1], "hotpink": [255,105,180,1],
    "indianred": [205,92,92,1], "indigo": [75,0,130,1],
    "ivory": [255,255,240,1], "khaki": [240,230,140,1],
    "lavender": [230,230,250,1], "lavenderblush": [255,240,245,1],
    "lawngreen": [124,252,0,1], "lemonchiffon": [255,250,205,1],
    "lightblue": [173,216,230,1], "lightcoral": [240,128,128,1],
    "lightcyan": [224,255,255,1], "lightgoldenrodyellow": [250,250,210,1],
    "lightgray": [211,211,211,1], "lightgreen": [144,238,144,1],
    "lightgrey": [211,211,211,1], "lightpink": [255,182,193,1],
    "lightsalmon": [255,160,122,1], "lightseagreen": [32,178,170,1],
    "lightskyblue": [135,206,250,1], "lightslategray": [119,136,153,1],
    "lightslategrey": [119,136,153,1], "lightsteelblue": [176,196,222,1],
    "lightyellow": [255,255,224,1], "lime": [0,255,0,1],
    "limegreen": [50,205,50,1], "linen": [250,240,230,1],
    "magenta": [255,0,255,1], "maroon": [128,0,0,1],
    "mediumaquamarine": [102,205,170,1], "mediumblue": [0,0,205,1],
    "mediumorchid": [186,85,211,1], "mediumpurple": [147,112,219,1],
    "mediumseagreen": [60,179,113,1], "mediumslateblue": [123,104,238,1],
    "mediumspringgreen": [0,250,154,1], "mediumturquoise": [72,209,204,1],
    "mediumvioletred": [199,21,133,1], "midnightblue": [25,25,112,1],
    "mintcream": [245,255,250,1], "mistyrose": [255,228,225,1],
    "moccasin": [255,228,181,1], "navajowhite": [255,222,173,1],
    "navy": [0,0,128,1], "oldlace": [253,245,230,1],
    "olive": [128,128,0,1], "olivedrab": [107,142,35,1],
    "orange": [255,165,0,1], "orangered": [255,69,0,1],
    "orchid": [218,112,214,1], "palegoldenrod": [238,232,170,1],
    "palegreen": [152,251,152,1], "paleturquoise": [175,238,238,1],
    "palevioletred": [219,112,147,1], "papayawhip": [255,239,213,1],
    "peachpuff": [255,218,185,1], "peru": [205,133,63,1],
    "pink": [255,192,203,1], "plum": [221,160,221,1],
    "powderblue": [176,224,230,1], "purple": [128,0,128,1],
    "rebeccapurple": [102,51,153,1],
    "red": [255,0,0,1], "rosybrown": [188,143,143,1],
    "royalblue": [65,105,225,1], "saddlebrown": [139,69,19,1],
    "salmon": [250,128,114,1], "sandybrown": [244,164,96,1],
    "seagreen": [46,139,87,1], "seashell": [255,245,238,1],
    "sienna": [160,82,45,1], "silver": [192,192,192,1],
    "skyblue": [135,206,235,1], "slateblue": [106,90,205,1],
    "slategray": [112,128,144,1], "slategrey": [112,128,144,1],
    "snow": [255,250,250,1], "springgreen": [0,255,127,1],
    "steelblue": [70,130,180,1], "tan": [210,180,140,1],
    "teal": [0,128,128,1], "thistle": [216,191,216,1],
    "tomato": [255,99,71,1], "turquoise": [64,224,208,1],
    "violet": [238,130,238,1], "wheat": [245,222,179,1],
    "white": [255,255,255,1], "whitesmoke": [245,245,245,1],
    "yellow": [255,255,0,1], "yellowgreen": [154,205,50,1]};

  function clamp_css_byte(i) {  // Clamp to integer 0 .. 255.
    i = Math.round(i);  // Seems to be what Chrome does (vs truncation).
    return i < 0 ? 0 : i > 255 ? 255 : i;
  }

  function clamp_css_float(f) {  // Clamp to float 0.0 .. 1.0.
    return f < 0 ? 0 : f > 1 ? 1 : f;
  }

  function parse_css_int(str) {  // int or percentage.
    if (str[str.length - 1] === '%')
      return clamp_css_byte(parseFloat(str) / 100 * 255);
    return clamp_css_byte(parseInt(str));
  }

  function parse_css_float(str) {  // float or percentage.
    if (str[str.length - 1] === '%')
      return clamp_css_float(parseFloat(str) / 100);
    return clamp_css_float(parseFloat(str));
  }

  function css_hue_to_rgb(m1, m2, h) {
    if (h < 0) h += 1;
    else if (h > 1) h -= 1;

    if (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
    if (h * 2 < 1) return m2;
    if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6;
    return m1;
  }

  function parseCSSColor(css_str) {
    // Remove all whitespace, not compliant, but should just be more accepting.
    var str = css_str.replace(/ /g, '').toLowerCase();

    // Color keywords (and transparent) lookup.
    if (str in kCSSColorTable) return kCSSColorTable[str].slice();  // dup.

    // #abc and #abc123 syntax.
    if (str[0] === '#') {
      if (str.length === 4) {
        var iv = parseInt(str.substr(1), 16);  // TODO(deanm): Stricter parsing.
        if (!(iv >= 0 && iv <= 0xfff)) return null;  // Covers NaN.
        return [((iv & 0xf00) >> 4) | ((iv & 0xf00) >> 8),
                (iv & 0xf0) | ((iv & 0xf0) >> 4),
                (iv & 0xf) | ((iv & 0xf) << 4),
                1];
      } else if (str.length === 7) {
        var iv = parseInt(str.substr(1), 16);  // TODO(deanm): Stricter parsing.
        if (!(iv >= 0 && iv <= 0xffffff)) return null;  // Covers NaN.
        return [(iv & 0xff0000) >> 16,
                (iv & 0xff00) >> 8,
                iv & 0xff,
                1];
      }

      return null;
    }

    var op = str.indexOf('('), ep = str.indexOf(')');
    if (op !== -1 && ep + 1 === str.length) {
      var fname = str.substr(0, op);
      var params = str.substr(op+1, ep-(op+1)).split(',');
      var alpha = 1;  // To allow case fallthrough.
      switch (fname) {
        case 'rgba':
          if (params.length !== 4) return null;
          alpha = parse_css_float(params.pop());
          // Fall through.
        case 'rgb':
          if (params.length !== 3) return null;
          return [parse_css_int(params[0]),
                  parse_css_int(params[1]),
                  parse_css_int(params[2]),
                  alpha];
        case 'hsla':
          if (params.length !== 4) return null;
          alpha = parse_css_float(params.pop());
          // Fall through.
        case 'hsl':
          if (params.length !== 3) return null;
          var h = (((parseFloat(params[0]) % 360) + 360) % 360) / 360;  // 0 .. 1
          // NOTE(deanm): According to the CSS spec s/l should only be
          // percentages, but we don't bother and let float or percentage.
          var s = parse_css_float(params[1]);
          var l = parse_css_float(params[2]);
          var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
          var m1 = l * 2 - m2;
          return [clamp_css_byte(css_hue_to_rgb(m1, m2, h+1/3) * 255),
                  clamp_css_byte(css_hue_to_rgb(m1, m2, h) * 255),
                  clamp_css_byte(css_hue_to_rgb(m1, m2, h-1/3) * 255),
                  alpha];
        default:
          return null;
      }
    }

    return null;
  }

  try { exports.parseCSSColor = parseCSSColor; } catch(e) { }
  });

  class Color {
      constructor(r, g, b, a = 1) {
          this.r = r;
          this.g = g;
          this.b = b;
          this.a = a;
      }
      static parse(input) {
          if (!input) {
              return undefined;
          }
          if (input instanceof Color) {
              return input;
          }
          if (typeof input !== 'string') {
              return undefined;
          }
          const rgba = csscolorparser.parseCSSColor(input);
          if (!rgba) {
              return undefined;
          }
          return new Color(rgba[0] / 255 * rgba[3], rgba[1] / 255 * rgba[3], rgba[2] / 255 * rgba[3], rgba[3]);
      }
      toString() {
          const [r, g, b, a] = this.toArray();
          return `rgba(${ Math.round(r) },${ Math.round(g) },${ Math.round(b) },${ a })`;
      }
      toArray() {
          const {r, g, b, a} = this;
          return a === 0 ? [
              0,
              0,
              0,
              0
          ] : [
              r * 255 / a,
              g * 255 / a,
              b * 255 / a,
              a
          ];
      }
  }
  Color.black = new Color(0, 0, 0, 1);
  Color.white = new Color(1, 1, 1, 1);
  Color.transparent = new Color(0, 0, 0, 0);
  Color.red = new Color(1, 0, 0, 1);
  Color.blue = new Color(0, 0, 1, 1);

  class Collator {
      constructor(caseSensitive, diacriticSensitive, locale) {
          if (caseSensitive)
              this.sensitivity = diacriticSensitive ? 'variant' : 'case';
          else
              this.sensitivity = diacriticSensitive ? 'accent' : 'base';
          this.locale = locale;
          this.collator = new Intl.Collator(this.locale ? this.locale : [], {
              sensitivity: this.sensitivity,
              usage: 'search'
          });
      }
      compare(lhs, rhs) {
          return this.collator.compare(lhs, rhs);
      }
      resolvedLocale() {
          return new Intl.Collator(this.locale ? this.locale : []).resolvedOptions().locale;
      }
  }

  class FormattedSection {
      constructor(text, image, scale, fontStack, textColor) {
          this.text = text.normalize ? text.normalize() : text;
          this.image = image;
          this.scale = scale;
          this.fontStack = fontStack;
          this.textColor = textColor;
      }
  }
  class Formatted {
      constructor(sections) {
          this.sections = sections;
      }
      static fromString(unformatted) {
          return new Formatted([new FormattedSection(unformatted, null, null, null, null)]);
      }
      isEmpty() {
          if (this.sections.length === 0)
              return true;
          return !this.sections.some(section => section.text.length !== 0 || section.image && section.image.name.length !== 0);
      }
      static factory(text) {
          if (text instanceof Formatted) {
              return text;
          } else {
              return Formatted.fromString(text);
          }
      }
      toString() {
          if (this.sections.length === 0)
              return '';
          return this.sections.map(section => section.text).join('');
      }
      serialize() {
          const serialized = ['format'];
          for (const section of this.sections) {
              if (section.image) {
                  serialized.push([
                      'image',
                      section.image.name
                  ]);
                  continue;
              }
              serialized.push(section.text);
              const options = {};
              if (section.fontStack) {
                  options['text-font'] = [
                      'literal',
                      section.fontStack.split(',')
                  ];
              }
              if (section.scale) {
                  options['font-scale'] = section.scale;
              }
              if (section.textColor) {
                  options['text-color'] = ['rgba'].concat(section.textColor.toArray());
              }
              serialized.push(options);
          }
          return serialized;
      }
  }

  class ResolvedImage {
      constructor(options) {
          this.name = options.name;
          this.available = options.available;
      }
      toString() {
          return this.name;
      }
      static fromString(name) {
          if (!name)
              return null;
          return new ResolvedImage({
              name,
              available: false
          });
      }
      serialize() {
          return [
              'image',
              this.name
          ];
      }
  }

  function validateRGBA(r, g, b, a) {
      if (!(typeof r === 'number' && r >= 0 && r <= 255 && typeof g === 'number' && g >= 0 && g <= 255 && typeof b === 'number' && b >= 0 && b <= 255)) {
          const value = typeof a === 'number' ? [
              r,
              g,
              b,
              a
          ] : [
              r,
              g,
              b
          ];
          return `Invalid rgba value [${ value.join(', ') }]: 'r', 'g', and 'b' must be between 0 and 255.`;
      }
      if (!(typeof a === 'undefined' || typeof a === 'number' && a >= 0 && a <= 1)) {
          return `Invalid rgba value [${ [
            r,
            g,
            b,
            a
        ].join(', ') }]: 'a' must be between 0 and 1.`;
      }
      return null;
  }
  function isValue(mixed) {
      if (mixed === null) {
          return true;
      } else if (typeof mixed === 'string') {
          return true;
      } else if (typeof mixed === 'boolean') {
          return true;
      } else if (typeof mixed === 'number') {
          return true;
      } else if (mixed instanceof Color) {
          return true;
      } else if (mixed instanceof Collator) {
          return true;
      } else if (mixed instanceof Formatted) {
          return true;
      } else if (mixed instanceof ResolvedImage) {
          return true;
      } else if (Array.isArray(mixed)) {
          for (const item of mixed) {
              if (!isValue(item)) {
                  return false;
              }
          }
          return true;
      } else if (typeof mixed === 'object') {
          for (const key in mixed) {
              if (!isValue(mixed[key])) {
                  return false;
              }
          }
          return true;
      } else {
          return false;
      }
  }
  function typeOf(value) {
      if (value === null) {
          return NullType;
      } else if (typeof value === 'string') {
          return StringType;
      } else if (typeof value === 'boolean') {
          return BooleanType;
      } else if (typeof value === 'number') {
          return NumberType;
      } else if (value instanceof Color) {
          return ColorType;
      } else if (value instanceof Collator) {
          return CollatorType;
      } else if (value instanceof Formatted) {
          return FormattedType;
      } else if (value instanceof ResolvedImage) {
          return ResolvedImageType;
      } else if (Array.isArray(value)) {
          const length = value.length;
          let itemType;
          for (const item of value) {
              const t = typeOf(item);
              if (!itemType) {
                  itemType = t;
              } else if (itemType === t) {
                  continue;
              } else {
                  itemType = ValueType;
                  break;
              }
          }
          return array(itemType || ValueType, length);
      } else {
          return ObjectType;
      }
  }
  function toString$1(value) {
      const type = typeof value;
      if (value === null) {
          return '';
      } else if (type === 'string' || type === 'number' || type === 'boolean') {
          return String(value);
      } else if (value instanceof Color || value instanceof Formatted || value instanceof ResolvedImage) {
          return value.toString();
      } else {
          return JSON.stringify(value);
      }
  }

  class Literal {
      constructor(type, value) {
          this.type = type;
          this.value = value;
      }
      static parse(args, context) {
          if (args.length !== 2)
              return context.error(`'literal' expression requires exactly one argument, but found ${ args.length - 1 } instead.`);
          if (!isValue(args[1]))
              return context.error(`invalid value`);
          const value = args[1];
          let type = typeOf(value);
          const expected = context.expectedType;
          if (type.kind === 'array' && type.N === 0 && expected && expected.kind === 'array' && (typeof expected.N !== 'number' || expected.N === 0)) {
              type = expected;
          }
          return new Literal(type, value);
      }
      evaluate() {
          return this.value;
      }
      eachChild() {
      }
      outputDefined() {
          return true;
      }
      serialize() {
          if (this.type.kind === 'array' || this.type.kind === 'object') {
              return [
                  'literal',
                  this.value
              ];
          } else if (this.value instanceof Color) {
              return ['rgba'].concat(this.value.toArray());
          } else if (this.value instanceof Formatted) {
              return this.value.serialize();
          } else {
              return this.value;
          }
      }
  }

  class RuntimeError {
      constructor(message) {
          this.name = 'ExpressionEvaluationError';
          this.message = message;
      }
      toJSON() {
          return this.message;
      }
  }

  const types = {
      string: StringType,
      number: NumberType,
      boolean: BooleanType,
      object: ObjectType
  };
  class Assertion {
      constructor(type, args) {
          this.type = type;
          this.args = args;
      }
      static parse(args, context) {
          if (args.length < 2)
              return context.error(`Expected at least one argument.`);
          let i = 1;
          let type;
          const name = args[0];
          if (name === 'array') {
              let itemType;
              if (args.length > 2) {
                  const type = args[1];
                  if (typeof type !== 'string' || !(type in types) || type === 'object')
                      return context.error('The item type argument of "array" must be one of string, number, boolean', 1);
                  itemType = types[type];
                  i++;
              } else {
                  itemType = ValueType;
              }
              let N;
              if (args.length > 3) {
                  if (args[2] !== null && (typeof args[2] !== 'number' || args[2] < 0 || args[2] !== Math.floor(args[2]))) {
                      return context.error('The length argument to "array" must be a positive integer literal', 2);
                  }
                  N = args[2];
                  i++;
              }
              type = array(itemType, N);
          } else {
              type = types[name];
          }
          const parsed = [];
          for (; i < args.length; i++) {
              const input = context.parse(args[i], i, ValueType);
              if (!input)
                  return null;
              parsed.push(input);
          }
          return new Assertion(type, parsed);
      }
      evaluate(ctx) {
          for (let i = 0; i < this.args.length; i++) {
              const value = this.args[i].evaluate(ctx);
              const error = checkSubtype(this.type, typeOf(value));
              if (!error) {
                  return value;
              } else if (i === this.args.length - 1) {
                  throw new RuntimeError(`Expected value to be of type ${ toString(this.type) }, but found ${ toString(typeOf(value)) } instead.`);
              }
          }
          return null;
      }
      eachChild(fn) {
          this.args.forEach(fn);
      }
      outputDefined() {
          return this.args.every(arg => arg.outputDefined());
      }
      serialize() {
          const type = this.type;
          const serialized = [type.kind];
          if (type.kind === 'array') {
              const itemType = type.itemType;
              if (itemType.kind === 'string' || itemType.kind === 'number' || itemType.kind === 'boolean') {
                  serialized.push(itemType.kind);
                  const N = type.N;
                  if (typeof N === 'number' || this.args.length > 1) {
                      serialized.push(N);
                  }
              }
          }
          return serialized.concat(this.args.map(arg => arg.serialize()));
      }
  }

  class FormatExpression {
      constructor(sections) {
          this.type = FormattedType;
          this.sections = sections;
      }
      static parse(args, context) {
          if (args.length < 2) {
              return context.error(`Expected at least one argument.`);
          }
          const firstArg = args[1];
          if (!Array.isArray(firstArg) && typeof firstArg === 'object') {
              return context.error(`First argument must be an image or text section.`);
          }
          const sections = [];
          let nextTokenMayBeObject = false;
          for (let i = 1; i <= args.length - 1; ++i) {
              const arg = args[i];
              if (nextTokenMayBeObject && typeof arg === 'object' && !Array.isArray(arg)) {
                  nextTokenMayBeObject = false;
                  let scale = null;
                  if (arg['font-scale']) {
                      scale = context.parse(arg['font-scale'], 1, NumberType);
                      if (!scale)
                          return null;
                  }
                  let font = null;
                  if (arg['text-font']) {
                      font = context.parse(arg['text-font'], 1, array(StringType));
                      if (!font)
                          return null;
                  }
                  let textColor = null;
                  if (arg['text-color']) {
                      textColor = context.parse(arg['text-color'], 1, ColorType);
                      if (!textColor)
                          return null;
                  }
                  const lastExpression = sections[sections.length - 1];
                  lastExpression.scale = scale;
                  lastExpression.font = font;
                  lastExpression.textColor = textColor;
              } else {
                  const content = context.parse(args[i], 1, ValueType);
                  if (!content)
                      return null;
                  const kind = content.type.kind;
                  if (kind !== 'string' && kind !== 'value' && kind !== 'null' && kind !== 'resolvedImage')
                      return context.error(`Formatted text type must be 'string', 'value', 'image' or 'null'.`);
                  nextTokenMayBeObject = true;
                  sections.push({
                      content,
                      scale: null,
                      font: null,
                      textColor: null
                  });
              }
          }
          return new FormatExpression(sections);
      }
      evaluate(ctx) {
          const evaluateSection = section => {
              const evaluatedContent = section.content.evaluate(ctx);
              if (typeOf(evaluatedContent) === ResolvedImageType) {
                  return new FormattedSection('', evaluatedContent, null, null, null);
              }
              return new FormattedSection(toString$1(evaluatedContent), null, section.scale ? section.scale.evaluate(ctx) : null, section.font ? section.font.evaluate(ctx).join(',') : null, section.textColor ? section.textColor.evaluate(ctx) : null);
          };
          return new Formatted(this.sections.map(evaluateSection));
      }
      eachChild(fn) {
          for (const section of this.sections) {
              fn(section.content);
              if (section.scale) {
                  fn(section.scale);
              }
              if (section.font) {
                  fn(section.font);
              }
              if (section.textColor) {
                  fn(section.textColor);
              }
          }
      }
      outputDefined() {
          return false;
      }
      serialize() {
          const serialized = ['format'];
          for (const section of this.sections) {
              serialized.push(section.content.serialize());
              const options = {};
              if (section.scale) {
                  options['font-scale'] = section.scale.serialize();
              }
              if (section.font) {
                  options['text-font'] = section.font.serialize();
              }
              if (section.textColor) {
                  options['text-color'] = section.textColor.serialize();
              }
              serialized.push(options);
          }
          return serialized;
      }
  }

  class ImageExpression {
      constructor(input) {
          this.type = ResolvedImageType;
          this.input = input;
      }
      static parse(args, context) {
          if (args.length !== 2) {
              return context.error(`Expected two arguments.`);
          }
          const name = context.parse(args[1], 1, StringType);
          if (!name)
              return context.error(`No image name provided.`);
          return new ImageExpression(name);
      }
      evaluate(ctx) {
          const evaluatedImageName = this.input.evaluate(ctx);
          const value = ResolvedImage.fromString(evaluatedImageName);
          if (value && ctx.availableImages)
              value.available = ctx.availableImages.indexOf(evaluatedImageName) > -1;
          return value;
      }
      eachChild(fn) {
          fn(this.input);
      }
      outputDefined() {
          return false;
      }
      serialize() {
          return [
              'image',
              this.input.serialize()
          ];
      }
  }

  const types$1 = {
      'to-boolean': BooleanType,
      'to-color': ColorType,
      'to-number': NumberType,
      'to-string': StringType
  };
  class Coercion {
      constructor(type, args) {
          this.type = type;
          this.args = args;
      }
      static parse(args, context) {
          if (args.length < 2)
              return context.error(`Expected at least one argument.`);
          const name = args[0];
          if ((name === 'to-boolean' || name === 'to-string') && args.length !== 2)
              return context.error(`Expected one argument.`);
          const type = types$1[name];
          const parsed = [];
          for (let i = 1; i < args.length; i++) {
              const input = context.parse(args[i], i, ValueType);
              if (!input)
                  return null;
              parsed.push(input);
          }
          return new Coercion(type, parsed);
      }
      evaluate(ctx) {
          if (this.type.kind === 'boolean') {
              return Boolean(this.args[0].evaluate(ctx));
          } else if (this.type.kind === 'color') {
              let input;
              let error;
              for (const arg of this.args) {
                  input = arg.evaluate(ctx);
                  error = null;
                  if (input instanceof Color) {
                      return input;
                  } else if (typeof input === 'string') {
                      const c = ctx.parseColor(input);
                      if (c)
                          return c;
                  } else if (Array.isArray(input)) {
                      if (input.length < 3 || input.length > 4) {
                          error = `Invalid rbga value ${ JSON.stringify(input) }: expected an array containing either three or four numeric values.`;
                      } else {
                          error = validateRGBA(input[0], input[1], input[2], input[3]);
                      }
                      if (!error) {
                          return new Color(input[0] / 255, input[1] / 255, input[2] / 255, input[3]);
                      }
                  }
              }
              throw new RuntimeError(error || `Could not parse color from value '${ typeof input === 'string' ? input : String(JSON.stringify(input)) }'`);
          } else if (this.type.kind === 'number') {
              let value = null;
              for (const arg of this.args) {
                  value = arg.evaluate(ctx);
                  if (value === null)
                      return 0;
                  const num = Number(value);
                  if (isNaN(num))
                      continue;
                  return num;
              }
              throw new RuntimeError(`Could not convert ${ JSON.stringify(value) } to number.`);
          } else if (this.type.kind === 'formatted') {
              return Formatted.fromString(toString$1(this.args[0].evaluate(ctx)));
          } else if (this.type.kind === 'resolvedImage') {
              return ResolvedImage.fromString(toString$1(this.args[0].evaluate(ctx)));
          } else {
              return toString$1(this.args[0].evaluate(ctx));
          }
      }
      eachChild(fn) {
          this.args.forEach(fn);
      }
      outputDefined() {
          return this.args.every(arg => arg.outputDefined());
      }
      serialize() {
          if (this.type.kind === 'formatted') {
              return new FormatExpression([{
                      content: this.args[0],
                      scale: null,
                      font: null,
                      textColor: null
                  }]).serialize();
          }
          if (this.type.kind === 'resolvedImage') {
              return new ImageExpression(this.args[0]).serialize();
          }
          const serialized = [`to-${ this.type.kind }`];
          this.eachChild(child => {
              serialized.push(child.serialize());
          });
          return serialized;
      }
  }

  const geometryTypes = [
      'Unknown',
      'Point',
      'LineString',
      'Polygon'
  ];
  class EvaluationContext {
      constructor() {
          this.globals = null;
          this.feature = null;
          this.featureState = null;
          this.formattedSection = null;
          this._parseColorCache = {};
          this.availableImages = null;
          this.canonical = null;
          this.featureTileCoord = null;
          this.featureDistanceData = null;
      }
      id() {
          return this.feature && 'id' in this.feature ? this.feature.id : null;
      }
      geometryType() {
          return this.feature ? typeof this.feature.type === 'number' ? geometryTypes[this.feature.type] : this.feature.type : null;
      }
      geometry() {
          return this.feature && 'geometry' in this.feature ? this.feature.geometry : null;
      }
      canonicalID() {
          return this.canonical;
      }
      properties() {
          return this.feature && this.feature.properties || {};
      }
      distanceFromCenter() {
          if (this.featureTileCoord && this.featureDistanceData) {
              const c = this.featureDistanceData.center;
              const scale = this.featureDistanceData.scale;
              const {x, y} = this.featureTileCoord;
              const dX = x * scale - c[0];
              const dY = y * scale - c[1];
              const bX = this.featureDistanceData.bearing[0];
              const bY = this.featureDistanceData.bearing[1];
              const dist = bX * dX + bY * dY;
              return dist;
          }
          return 0;
      }
      parseColor(input) {
          let cached = this._parseColorCache[input];
          if (!cached) {
              cached = this._parseColorCache[input] = Color.parse(input);
          }
          return cached;
      }
  }

  class CompoundExpression {
      constructor(name, type, evaluate, args) {
          this.name = name;
          this.type = type;
          this._evaluate = evaluate;
          this.args = args;
      }
      evaluate(ctx) {
          return this._evaluate(ctx, this.args);
      }
      eachChild(fn) {
          this.args.forEach(fn);
      }
      outputDefined() {
          return false;
      }
      serialize() {
          return [this.name].concat(this.args.map(arg => arg.serialize()));
      }
      static parse(args, context) {
          const op = args[0];
          const definition = CompoundExpression.definitions[op];
          if (!definition) {
              return context.error(`Unknown expression "${ op }". If you wanted a literal array, use ["literal", [...]].`, 0);
          }
          const type = Array.isArray(definition) ? definition[0] : definition.type;
          const availableOverloads = Array.isArray(definition) ? [[
                  definition[1],
                  definition[2]
              ]] : definition.overloads;
          const overloads = availableOverloads.filter(([signature]) => !Array.isArray(signature) || signature.length === args.length - 1);
          let signatureContext = null;
          for (const [params, evaluate] of overloads) {
              signatureContext = new ParsingContext(context.registry, context.path, null, context.scope);
              const parsedArgs = [];
              let argParseFailed = false;
              for (let i = 1; i < args.length; i++) {
                  const arg = args[i];
                  const expectedType = Array.isArray(params) ? params[i - 1] : params.type;
                  const parsed = signatureContext.parse(arg, 1 + parsedArgs.length, expectedType);
                  if (!parsed) {
                      argParseFailed = true;
                      break;
                  }
                  parsedArgs.push(parsed);
              }
              if (argParseFailed) {
                  continue;
              }
              if (Array.isArray(params)) {
                  if (params.length !== parsedArgs.length) {
                      signatureContext.error(`Expected ${ params.length } arguments, but found ${ parsedArgs.length } instead.`);
                      continue;
                  }
              }
              for (let i = 0; i < parsedArgs.length; i++) {
                  const expected = Array.isArray(params) ? params[i] : params.type;
                  const arg = parsedArgs[i];
                  signatureContext.concat(i + 1).checkSubtype(expected, arg.type);
              }
              if (signatureContext.errors.length === 0) {
                  return new CompoundExpression(op, type, evaluate, parsedArgs);
              }
          }
          if (overloads.length === 1) {
              context.errors.push(...signatureContext.errors);
          } else {
              const expected = overloads.length ? overloads : availableOverloads;
              const signatures = expected.map(([params]) => stringifySignature(params)).join(' | ');
              const actualTypes = [];
              for (let i = 1; i < args.length; i++) {
                  const parsed = context.parse(args[i], 1 + actualTypes.length);
                  if (!parsed)
                      return null;
                  actualTypes.push(toString(parsed.type));
              }
              context.error(`Expected arguments of type ${ signatures }, but found (${ actualTypes.join(', ') }) instead.`);
          }
          return null;
      }
      static register(registry, definitions) {
          CompoundExpression.definitions = definitions;
          for (const name in definitions) {
              registry[name] = CompoundExpression;
          }
      }
  }
  function stringifySignature(signature) {
      if (Array.isArray(signature)) {
          return `(${ signature.map(toString).join(', ') })`;
      } else {
          return `(${ toString(signature.type) }...)`;
      }
  }

  class CollatorExpression {
      constructor(caseSensitive, diacriticSensitive, locale) {
          this.type = CollatorType;
          this.locale = locale;
          this.caseSensitive = caseSensitive;
          this.diacriticSensitive = diacriticSensitive;
      }
      static parse(args, context) {
          if (args.length !== 2)
              return context.error(`Expected one argument.`);
          const options = args[1];
          if (typeof options !== 'object' || Array.isArray(options))
              return context.error(`Collator options argument must be an object.`);
          const caseSensitive = context.parse(options['case-sensitive'] === undefined ? false : options['case-sensitive'], 1, BooleanType);
          if (!caseSensitive)
              return null;
          const diacriticSensitive = context.parse(options['diacritic-sensitive'] === undefined ? false : options['diacritic-sensitive'], 1, BooleanType);
          if (!diacriticSensitive)
              return null;
          let locale = null;
          if (options['locale']) {
              locale = context.parse(options['locale'], 1, StringType);
              if (!locale)
                  return null;
          }
          return new CollatorExpression(caseSensitive, diacriticSensitive, locale);
      }
      evaluate(ctx) {
          return new Collator(this.caseSensitive.evaluate(ctx), this.diacriticSensitive.evaluate(ctx), this.locale ? this.locale.evaluate(ctx) : null);
      }
      eachChild(fn) {
          fn(this.caseSensitive);
          fn(this.diacriticSensitive);
          if (this.locale) {
              fn(this.locale);
          }
      }
      outputDefined() {
          return false;
      }
      serialize() {
          const options = {};
          options['case-sensitive'] = this.caseSensitive.serialize();
          options['diacritic-sensitive'] = this.diacriticSensitive.serialize();
          if (this.locale) {
              options['locale'] = this.locale.serialize();
          }
          return [
              'collator',
              options
          ];
      }
  }

  const EXTENT = 8192;
  function updateBBox(bbox, coord) {
      bbox[0] = Math.min(bbox[0], coord[0]);
      bbox[1] = Math.min(bbox[1], coord[1]);
      bbox[2] = Math.max(bbox[2], coord[0]);
      bbox[3] = Math.max(bbox[3], coord[1]);
  }
  function mercatorXfromLng(lng) {
      return (180 + lng) / 360;
  }
  function mercatorYfromLat(lat) {
      return (180 - 180 / Math.PI * Math.log(Math.tan(Math.PI / 4 + lat * Math.PI / 360))) / 360;
  }
  function boxWithinBox(bbox1, bbox2) {
      if (bbox1[0] <= bbox2[0])
          return false;
      if (bbox1[2] >= bbox2[2])
          return false;
      if (bbox1[1] <= bbox2[1])
          return false;
      if (bbox1[3] >= bbox2[3])
          return false;
      return true;
  }
  function getTileCoordinates(p, canonical) {
      const x = mercatorXfromLng(p[0]);
      const y = mercatorYfromLat(p[1]);
      const tilesAtZoom = Math.pow(2, canonical.z);
      return [
          Math.round(x * tilesAtZoom * EXTENT),
          Math.round(y * tilesAtZoom * EXTENT)
      ];
  }
  function onBoundary(p, p1, p2) {
      const x1 = p[0] - p1[0];
      const y1 = p[1] - p1[1];
      const x2 = p[0] - p2[0];
      const y2 = p[1] - p2[1];
      return x1 * y2 - x2 * y1 === 0 && x1 * x2 <= 0 && y1 * y2 <= 0;
  }
  function rayIntersect(p, p1, p2) {
      return p1[1] > p[1] !== p2[1] > p[1] && p[0] < (p2[0] - p1[0]) * (p[1] - p1[1]) / (p2[1] - p1[1]) + p1[0];
  }
  function pointWithinPolygon(point, rings) {
      let inside = false;
      for (let i = 0, len = rings.length; i < len; i++) {
          const ring = rings[i];
          for (let j = 0, len2 = ring.length; j < len2 - 1; j++) {
              if (onBoundary(point, ring[j], ring[j + 1]))
                  return false;
              if (rayIntersect(point, ring[j], ring[j + 1]))
                  inside = !inside;
          }
      }
      return inside;
  }
  function pointWithinPolygons(point, polygons) {
      for (let i = 0; i < polygons.length; i++) {
          if (pointWithinPolygon(point, polygons[i]))
              return true;
      }
      return false;
  }
  function perp(v1, v2) {
      return v1[0] * v2[1] - v1[1] * v2[0];
  }
  function twoSided(p1, p2, q1, q2) {
      const x1 = p1[0] - q1[0];
      const y1 = p1[1] - q1[1];
      const x2 = p2[0] - q1[0];
      const y2 = p2[1] - q1[1];
      const x3 = q2[0] - q1[0];
      const y3 = q2[1] - q1[1];
      const det1 = x1 * y3 - x3 * y1;
      const det2 = x2 * y3 - x3 * y2;
      if (det1 > 0 && det2 < 0 || det1 < 0 && det2 > 0)
          return true;
      return false;
  }
  function lineIntersectLine(a, b, c, d) {
      const vectorP = [
          b[0] - a[0],
          b[1] - a[1]
      ];
      const vectorQ = [
          d[0] - c[0],
          d[1] - c[1]
      ];
      if (perp(vectorQ, vectorP) === 0)
          return false;
      if (twoSided(a, b, c, d) && twoSided(c, d, a, b))
          return true;
      return false;
  }
  function lineIntersectPolygon(p1, p2, polygon) {
      for (const ring of polygon) {
          for (let j = 0; j < ring.length - 1; ++j) {
              if (lineIntersectLine(p1, p2, ring[j], ring[j + 1])) {
                  return true;
              }
          }
      }
      return false;
  }
  function lineStringWithinPolygon(line, polygon) {
      for (let i = 0; i < line.length; ++i) {
          if (!pointWithinPolygon(line[i], polygon)) {
              return false;
          }
      }
      for (let i = 0; i < line.length - 1; ++i) {
          if (lineIntersectPolygon(line[i], line[i + 1], polygon)) {
              return false;
          }
      }
      return true;
  }
  function lineStringWithinPolygons(line, polygons) {
      for (let i = 0; i < polygons.length; i++) {
          if (lineStringWithinPolygon(line, polygons[i]))
              return true;
      }
      return false;
  }
  function getTilePolygon(coordinates, bbox, canonical) {
      const polygon = [];
      for (let i = 0; i < coordinates.length; i++) {
          const ring = [];
          for (let j = 0; j < coordinates[i].length; j++) {
              const coord = getTileCoordinates(coordinates[i][j], canonical);
              updateBBox(bbox, coord);
              ring.push(coord);
          }
          polygon.push(ring);
      }
      return polygon;
  }
  function getTilePolygons(coordinates, bbox, canonical) {
      const polygons = [];
      for (let i = 0; i < coordinates.length; i++) {
          const polygon = getTilePolygon(coordinates[i], bbox, canonical);
          polygons.push(polygon);
      }
      return polygons;
  }
  function updatePoint(p, bbox, polyBBox, worldSize) {
      if (p[0] < polyBBox[0] || p[0] > polyBBox[2]) {
          const halfWorldSize = worldSize * 0.5;
          let shift = p[0] - polyBBox[0] > halfWorldSize ? -worldSize : polyBBox[0] - p[0] > halfWorldSize ? worldSize : 0;
          if (shift === 0) {
              shift = p[0] - polyBBox[2] > halfWorldSize ? -worldSize : polyBBox[2] - p[0] > halfWorldSize ? worldSize : 0;
          }
          p[0] += shift;
      }
      updateBBox(bbox, p);
  }
  function resetBBox(bbox) {
      bbox[0] = bbox[1] = Infinity;
      bbox[2] = bbox[3] = -Infinity;
  }
  function getTilePoints(geometry, pointBBox, polyBBox, canonical) {
      const worldSize = Math.pow(2, canonical.z) * EXTENT;
      const shifts = [
          canonical.x * EXTENT,
          canonical.y * EXTENT
      ];
      const tilePoints = [];
      for (const points of geometry) {
          for (const point of points) {
              const p = [
                  point.x + shifts[0],
                  point.y + shifts[1]
              ];
              updatePoint(p, pointBBox, polyBBox, worldSize);
              tilePoints.push(p);
          }
      }
      return tilePoints;
  }
  function getTileLines(geometry, lineBBox, polyBBox, canonical) {
      const worldSize = Math.pow(2, canonical.z) * EXTENT;
      const shifts = [
          canonical.x * EXTENT,
          canonical.y * EXTENT
      ];
      const tileLines = [];
      for (const line of geometry) {
          const tileLine = [];
          for (const point of line) {
              const p = [
                  point.x + shifts[0],
                  point.y + shifts[1]
              ];
              updateBBox(lineBBox, p);
              tileLine.push(p);
          }
          tileLines.push(tileLine);
      }
      if (lineBBox[2] - lineBBox[0] <= worldSize / 2) {
          resetBBox(lineBBox);
          for (const line of tileLines) {
              for (const p of line) {
                  updatePoint(p, lineBBox, polyBBox, worldSize);
              }
          }
      }
      return tileLines;
  }
  function pointsWithinPolygons(ctx, polygonGeometry) {
      const pointBBox = [
          Infinity,
          Infinity,
          -Infinity,
          -Infinity
      ];
      const polyBBox = [
          Infinity,
          Infinity,
          -Infinity,
          -Infinity
      ];
      const canonical = ctx.canonicalID();
      if (polygonGeometry.type === 'Polygon') {
          const tilePolygon = getTilePolygon(polygonGeometry.coordinates, polyBBox, canonical);
          const tilePoints = getTilePoints(ctx.geometry(), pointBBox, polyBBox, canonical);
          if (!boxWithinBox(pointBBox, polyBBox))
              return false;
          for (const point of tilePoints) {
              if (!pointWithinPolygon(point, tilePolygon))
                  return false;
          }
      }
      if (polygonGeometry.type === 'MultiPolygon') {
          const tilePolygons = getTilePolygons(polygonGeometry.coordinates, polyBBox, canonical);
          const tilePoints = getTilePoints(ctx.geometry(), pointBBox, polyBBox, canonical);
          if (!boxWithinBox(pointBBox, polyBBox))
              return false;
          for (const point of tilePoints) {
              if (!pointWithinPolygons(point, tilePolygons))
                  return false;
          }
      }
      return true;
  }
  function linesWithinPolygons(ctx, polygonGeometry) {
      const lineBBox = [
          Infinity,
          Infinity,
          -Infinity,
          -Infinity
      ];
      const polyBBox = [
          Infinity,
          Infinity,
          -Infinity,
          -Infinity
      ];
      const canonical = ctx.canonicalID();
      if (polygonGeometry.type === 'Polygon') {
          const tilePolygon = getTilePolygon(polygonGeometry.coordinates, polyBBox, canonical);
          const tileLines = getTileLines(ctx.geometry(), lineBBox, polyBBox, canonical);
          if (!boxWithinBox(lineBBox, polyBBox))
              return false;
          for (const line of tileLines) {
              if (!lineStringWithinPolygon(line, tilePolygon))
                  return false;
          }
      }
      if (polygonGeometry.type === 'MultiPolygon') {
          const tilePolygons = getTilePolygons(polygonGeometry.coordinates, polyBBox, canonical);
          const tileLines = getTileLines(ctx.geometry(), lineBBox, polyBBox, canonical);
          if (!boxWithinBox(lineBBox, polyBBox))
              return false;
          for (const line of tileLines) {
              if (!lineStringWithinPolygons(line, tilePolygons))
                  return false;
          }
      }
      return true;
  }
  class Within {
      constructor(geojson, geometries) {
          this.type = BooleanType;
          this.geojson = geojson;
          this.geometries = geometries;
      }
      static parse(args, context) {
          if (args.length !== 2)
              return context.error(`'within' expression requires exactly one argument, but found ${ args.length - 1 } instead.`);
          if (isValue(args[1])) {
              const geojson = args[1];
              if (geojson.type === 'FeatureCollection') {
                  for (let i = 0; i < geojson.features.length; ++i) {
                      const type = geojson.features[i].geometry.type;
                      if (type === 'Polygon' || type === 'MultiPolygon') {
                          return new Within(geojson, geojson.features[i].geometry);
                      }
                  }
              } else if (geojson.type === 'Feature') {
                  const type = geojson.geometry.type;
                  if (type === 'Polygon' || type === 'MultiPolygon') {
                      return new Within(geojson, geojson.geometry);
                  }
              } else if (geojson.type === 'Polygon' || geojson.type === 'MultiPolygon') {
                  return new Within(geojson, geojson);
              }
          }
          return context.error(`'within' expression requires valid geojson object that contains polygon geometry type.`);
      }
      evaluate(ctx) {
          if (ctx.geometry() != null && ctx.canonicalID() != null) {
              if (ctx.geometryType() === 'Point') {
                  return pointsWithinPolygons(ctx, this.geometries);
              } else if (ctx.geometryType() === 'LineString') {
                  return linesWithinPolygons(ctx, this.geometries);
              }
          }
          return false;
      }
      eachChild() {
      }
      outputDefined() {
          return true;
      }
      serialize() {
          return [
              'within',
              this.geojson
          ];
      }
  }

  function isFeatureConstant(e) {
      if (e instanceof CompoundExpression) {
          if (e.name === 'get' && e.args.length === 1) {
              return false;
          } else if (e.name === 'feature-state') {
              return false;
          } else if (e.name === 'has' && e.args.length === 1) {
              return false;
          } else if (e.name === 'properties' || e.name === 'geometry-type' || e.name === 'id') {
              return false;
          } else if (/^filter-/.test(e.name)) {
              return false;
          }
      }
      if (e instanceof Within) {
          return false;
      }
      let result = true;
      e.eachChild(arg => {
          if (result && !isFeatureConstant(arg)) {
              result = false;
          }
      });
      return result;
  }
  function isStateConstant(e) {
      if (e instanceof CompoundExpression) {
          if (e.name === 'feature-state') {
              return false;
          }
      }
      let result = true;
      e.eachChild(arg => {
          if (result && !isStateConstant(arg)) {
              result = false;
          }
      });
      return result;
  }
  function isGlobalPropertyConstant(e, properties) {
      if (e instanceof CompoundExpression && properties.indexOf(e.name) >= 0) {
          return false;
      }
      let result = true;
      e.eachChild(arg => {
          if (result && !isGlobalPropertyConstant(arg, properties)) {
              result = false;
          }
      });
      return result;
  }

  class Var {
      constructor(name, boundExpression) {
          this.type = boundExpression.type;
          this.name = name;
          this.boundExpression = boundExpression;
      }
      static parse(args, context) {
          if (args.length !== 2 || typeof args[1] !== 'string')
              return context.error(`'var' expression requires exactly one string literal argument.`);
          const name = args[1];
          if (!context.scope.has(name)) {
              return context.error(`Unknown variable "${ name }". Make sure "${ name }" has been bound in an enclosing "let" expression before using it.`, 1);
          }
          return new Var(name, context.scope.get(name));
      }
      evaluate(ctx) {
          return this.boundExpression.evaluate(ctx);
      }
      eachChild() {
      }
      outputDefined() {
          return false;
      }
      serialize() {
          return [
              'var',
              this.name
          ];
      }
  }

  class ParsingContext {
      constructor(registry, path = [], expectedType, scope = new Scope(), errors = []) {
          this.registry = registry;
          this.path = path;
          this.key = path.map(part => `[${ part }]`).join('');
          this.scope = scope;
          this.errors = errors;
          this.expectedType = expectedType;
      }
      parse(expr, index, expectedType, bindings, options = {}) {
          if (index) {
              return this.concat(index, expectedType, bindings)._parse(expr, options);
          }
          return this._parse(expr, options);
      }
      _parse(expr, options) {
          if (expr === null || typeof expr === 'string' || typeof expr === 'boolean' || typeof expr === 'number') {
              expr = [
                  'literal',
                  expr
              ];
          }
          function annotate(parsed, type, typeAnnotation) {
              if (typeAnnotation === 'assert') {
                  return new Assertion(type, [parsed]);
              } else if (typeAnnotation === 'coerce') {
                  return new Coercion(type, [parsed]);
              } else {
                  return parsed;
              }
          }
          if (Array.isArray(expr)) {
              if (expr.length === 0) {
                  return this.error(`Expected an array with at least one element. If you wanted a literal array, use ["literal", []].`);
              }
              const op = expr[0];
              if (typeof op !== 'string') {
                  this.error(`Expression name must be a string, but found ${ typeof op } instead. If you wanted a literal array, use ["literal", [...]].`, 0);
                  return null;
              }
              const Expr = this.registry[op];
              if (Expr) {
                  let parsed = Expr.parse(expr, this);
                  if (!parsed)
                      return null;
                  if (this.expectedType) {
                      const expected = this.expectedType;
                      const actual = parsed.type;
                      if ((expected.kind === 'string' || expected.kind === 'number' || expected.kind === 'boolean' || expected.kind === 'object' || expected.kind === 'array') && actual.kind === 'value') {
                          parsed = annotate(parsed, expected, options.typeAnnotation || 'assert');
                      } else if ((expected.kind === 'color' || expected.kind === 'formatted' || expected.kind === 'resolvedImage') && (actual.kind === 'value' || actual.kind === 'string')) {
                          parsed = annotate(parsed, expected, options.typeAnnotation || 'coerce');
                      } else if (this.checkSubtype(expected, actual)) {
                          return null;
                      }
                  }
                  if (!(parsed instanceof Literal) && parsed.type.kind !== 'resolvedImage' && isConstant(parsed)) {
                      const ec = new EvaluationContext();
                      try {
                          parsed = new Literal(parsed.type, parsed.evaluate(ec));
                      } catch (e) {
                          this.error(e.message);
                          return null;
                      }
                  }
                  return parsed;
              }
              return this.error(`Unknown expression "${ op }". If you wanted a literal array, use ["literal", [...]].`, 0);
          } else if (typeof expr === 'undefined') {
              return this.error(`'undefined' value invalid. Use null instead.`);
          } else if (typeof expr === 'object') {
              return this.error(`Bare objects invalid. Use ["literal", {...}] instead.`);
          } else {
              return this.error(`Expected an array, but found ${ typeof expr } instead.`);
          }
      }
      concat(index, expectedType, bindings) {
          const path = typeof index === 'number' ? this.path.concat(index) : this.path;
          const scope = bindings ? this.scope.concat(bindings) : this.scope;
          return new ParsingContext(this.registry, path, expectedType || null, scope, this.errors);
      }
      error(error, ...keys) {
          const key = `${ this.key }${ keys.map(k => `[${ k }]`).join('') }`;
          this.errors.push(new ParsingError(key, error));
      }
      checkSubtype(expected, t) {
          const error = checkSubtype(expected, t);
          if (error)
              this.error(error);
          return error;
      }
  }
  function isConstant(expression) {
      if (expression instanceof Var) {
          return isConstant(expression.boundExpression);
      } else if (expression instanceof CompoundExpression && expression.name === 'error') {
          return false;
      } else if (expression instanceof CollatorExpression) {
          return false;
      } else if (expression instanceof Within) {
          return false;
      }
      const isTypeAnnotation = expression instanceof Coercion || expression instanceof Assertion;
      let childrenConstant = true;
      expression.eachChild(child => {
          if (isTypeAnnotation) {
              childrenConstant = childrenConstant && isConstant(child);
          } else {
              childrenConstant = childrenConstant && child instanceof Literal;
          }
      });
      if (!childrenConstant) {
          return false;
      }
      return isFeatureConstant(expression) && isGlobalPropertyConstant(expression, [
          'zoom',
          'heatmap-density',
          'line-progress',
          'sky-radial-progress',
          'accumulated',
          'is-supported-script',
          'pitch',
          'distance-from-center'
      ]);
  }

  function findStopLessThanOrEqualTo(stops, input) {
      const lastIndex = stops.length - 1;
      let lowerIndex = 0;
      let upperIndex = lastIndex;
      let currentIndex = 0;
      let currentValue, nextValue;
      while (lowerIndex <= upperIndex) {
          currentIndex = Math.floor((lowerIndex + upperIndex) / 2);
          currentValue = stops[currentIndex];
          nextValue = stops[currentIndex + 1];
          if (currentValue <= input) {
              if (currentIndex === lastIndex || input < nextValue) {
                  return currentIndex;
              }
              lowerIndex = currentIndex + 1;
          } else if (currentValue > input) {
              upperIndex = currentIndex - 1;
          } else {
              throw new RuntimeError('Input is not a number.');
          }
      }
      return 0;
  }

  class Step {
      constructor(type, input, stops) {
          this.type = type;
          this.input = input;
          this.labels = [];
          this.outputs = [];
          for (const [label, expression] of stops) {
              this.labels.push(label);
              this.outputs.push(expression);
          }
      }
      static parse(args, context) {
          if (args.length - 1 < 4) {
              return context.error(`Expected at least 4 arguments, but found only ${ args.length - 1 }.`);
          }
          if ((args.length - 1) % 2 !== 0) {
              return context.error(`Expected an even number of arguments.`);
          }
          const input = context.parse(args[1], 1, NumberType);
          if (!input)
              return null;
          const stops = [];
          let outputType = null;
          if (context.expectedType && context.expectedType.kind !== 'value') {
              outputType = context.expectedType;
          }
          for (let i = 1; i < args.length; i += 2) {
              const label = i === 1 ? -Infinity : args[i];
              const value = args[i + 1];
              const labelKey = i;
              const valueKey = i + 1;
              if (typeof label !== 'number') {
                  return context.error('Input/output pairs for "step" expressions must be defined using literal numeric values (not computed expressions) for the input values.', labelKey);
              }
              if (stops.length && stops[stops.length - 1][0] >= label) {
                  return context.error('Input/output pairs for "step" expressions must be arranged with input values in strictly ascending order.', labelKey);
              }
              const parsed = context.parse(value, valueKey, outputType);
              if (!parsed)
                  return null;
              outputType = outputType || parsed.type;
              stops.push([
                  label,
                  parsed
              ]);
          }
          return new Step(outputType, input, stops);
      }
      evaluate(ctx) {
          const labels = this.labels;
          const outputs = this.outputs;
          if (labels.length === 1) {
              return outputs[0].evaluate(ctx);
          }
          const value = this.input.evaluate(ctx);
          if (value <= labels[0]) {
              return outputs[0].evaluate(ctx);
          }
          const stopCount = labels.length;
          if (value >= labels[stopCount - 1]) {
              return outputs[stopCount - 1].evaluate(ctx);
          }
          const index = findStopLessThanOrEqualTo(labels, value);
          return outputs[index].evaluate(ctx);
      }
      eachChild(fn) {
          fn(this.input);
          for (const expression of this.outputs) {
              fn(expression);
          }
      }
      outputDefined() {
          return this.outputs.every(out => out.outputDefined());
      }
      serialize() {
          const serialized = [
              'step',
              this.input.serialize()
          ];
          for (let i = 0; i < this.labels.length; i++) {
              if (i > 0) {
                  serialized.push(this.labels[i]);
              }
              serialized.push(this.outputs[i].serialize());
          }
          return serialized;
      }
  }

  /*
   * Copyright (C) 2008 Apple Inc. All Rights Reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * Ported from Webkit
   * http://svn.webkit.org/repository/webkit/trunk/Source/WebCore/platform/graphics/UnitBezier.h
   */
  var unitbezier = UnitBezier;

  function UnitBezier(p1x, p1y, p2x, p2y) {
      // Calculate the polynomial coefficients, implicit first and last control points are (0,0) and (1,1).
      this.cx = 3.0 * p1x;
      this.bx = 3.0 * (p2x - p1x) - this.cx;
      this.ax = 1.0 - this.cx - this.bx;

      this.cy = 3.0 * p1y;
      this.by = 3.0 * (p2y - p1y) - this.cy;
      this.ay = 1.0 - this.cy - this.by;

      this.p1x = p1x;
      this.p1y = p2y;
      this.p2x = p2x;
      this.p2y = p2y;
  }

  UnitBezier.prototype.sampleCurveX = function(t) {
      // `ax t^3 + bx t^2 + cx t' expanded using Horner's rule.
      return ((this.ax * t + this.bx) * t + this.cx) * t;
  };

  UnitBezier.prototype.sampleCurveY = function(t) {
      return ((this.ay * t + this.by) * t + this.cy) * t;
  };

  UnitBezier.prototype.sampleCurveDerivativeX = function(t) {
      return (3.0 * this.ax * t + 2.0 * this.bx) * t + this.cx;
  };

  UnitBezier.prototype.solveCurveX = function(x, epsilon) {
      if (typeof epsilon === 'undefined') epsilon = 1e-6;

      var t0, t1, t2, x2, i;

      // First try a few iterations of Newton's method -- normally very fast.
      for (t2 = x, i = 0; i < 8; i++) {

          x2 = this.sampleCurveX(t2) - x;
          if (Math.abs(x2) < epsilon) return t2;

          var d2 = this.sampleCurveDerivativeX(t2);
          if (Math.abs(d2) < 1e-6) break;

          t2 = t2 - x2 / d2;
      }

      // Fall back to the bisection method for reliability.
      t0 = 0.0;
      t1 = 1.0;
      t2 = x;

      if (t2 < t0) return t0;
      if (t2 > t1) return t1;

      while (t0 < t1) {

          x2 = this.sampleCurveX(t2);
          if (Math.abs(x2 - x) < epsilon) return t2;

          if (x > x2) {
              t0 = t2;
          } else {
              t1 = t2;
          }

          t2 = (t1 - t0) * 0.5 + t0;
      }

      // Failure.
      return t2;
  };

  UnitBezier.prototype.solve = function(x, epsilon) {
      return this.sampleCurveY(this.solveCurveX(x, epsilon));
  };

  function number(a, b, t) {
      return a * (1 - t) + b * t;
  }
  function color(from, to, t) {
      return new Color(number(from.r, to.r, t), number(from.g, to.g, t), number(from.b, to.b, t), number(from.a, to.a, t));
  }
  function array$1(from, to, t) {
      return from.map((d, i) => {
          return number(d, to[i], t);
      });
  }

  var interpolate = /*#__PURE__*/Object.freeze({
    __proto__: null,
    number: number,
    color: color,
    array: array$1
  });

  const Xn = 0.95047, Yn = 1, Zn = 1.08883, t0 = 4 / 29, t1 = 6 / 29, t2 = 3 * t1 * t1, t3 = t1 * t1 * t1, deg2rad = Math.PI / 180, rad2deg = 180 / Math.PI;
  function xyz2lab(t) {
      return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0;
  }
  function lab2xyz(t) {
      return t > t1 ? t * t * t : t2 * (t - t0);
  }
  function xyz2rgb(x) {
      return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055);
  }
  function rgb2xyz(x) {
      x /= 255;
      return x <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4);
  }
  function rgbToLab(rgbColor) {
      const b = rgb2xyz(rgbColor.r), a = rgb2xyz(rgbColor.g), l = rgb2xyz(rgbColor.b), x = xyz2lab((0.4124564 * b + 0.3575761 * a + 0.1804375 * l) / Xn), y = xyz2lab((0.2126729 * b + 0.7151522 * a + 0.072175 * l) / Yn), z = xyz2lab((0.0193339 * b + 0.119192 * a + 0.9503041 * l) / Zn);
      return {
          l: 116 * y - 16,
          a: 500 * (x - y),
          b: 200 * (y - z),
          alpha: rgbColor.a
      };
  }
  function labToRgb(labColor) {
      let y = (labColor.l + 16) / 116, x = isNaN(labColor.a) ? y : y + labColor.a / 500, z = isNaN(labColor.b) ? y : y - labColor.b / 200;
      y = Yn * lab2xyz(y);
      x = Xn * lab2xyz(x);
      z = Zn * lab2xyz(z);
      return new Color(xyz2rgb(3.2404542 * x - 1.5371385 * y - 0.4985314 * z), xyz2rgb(-0.969266 * x + 1.8760108 * y + 0.041556 * z), xyz2rgb(0.0556434 * x - 0.2040259 * y + 1.0572252 * z), labColor.alpha);
  }
  function interpolateLab(from, to, t) {
      return {
          l: number(from.l, to.l, t),
          a: number(from.a, to.a, t),
          b: number(from.b, to.b, t),
          alpha: number(from.alpha, to.alpha, t)
      };
  }
  function rgbToHcl(rgbColor) {
      const {l, a, b} = rgbToLab(rgbColor);
      const h = Math.atan2(b, a) * rad2deg;
      return {
          h: h < 0 ? h + 360 : h,
          c: Math.sqrt(a * a + b * b),
          l,
          alpha: rgbColor.a
      };
  }
  function hclToRgb(hclColor) {
      const h = hclColor.h * deg2rad, c = hclColor.c, l = hclColor.l;
      return labToRgb({
          l,
          a: Math.cos(h) * c,
          b: Math.sin(h) * c,
          alpha: hclColor.alpha
      });
  }
  function interpolateHue(a, b, t) {
      const d = b - a;
      return a + t * (d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d);
  }
  function interpolateHcl(from, to, t) {
      return {
          h: interpolateHue(from.h, to.h, t),
          c: number(from.c, to.c, t),
          l: number(from.l, to.l, t),
          alpha: number(from.alpha, to.alpha, t)
      };
  }
  const lab = {
      forward: rgbToLab,
      reverse: labToRgb,
      interpolate: interpolateLab
  };
  const hcl = {
      forward: rgbToHcl,
      reverse: hclToRgb,
      interpolate: interpolateHcl
  };

  var colorSpaces = /*#__PURE__*/Object.freeze({
    __proto__: null,
    lab: lab,
    hcl: hcl
  });

  class Interpolate {
      constructor(type, operator, interpolation, input, stops) {
          this.type = type;
          this.operator = operator;
          this.interpolation = interpolation;
          this.input = input;
          this.labels = [];
          this.outputs = [];
          for (const [label, expression] of stops) {
              this.labels.push(label);
              this.outputs.push(expression);
          }
      }
      static interpolationFactor(interpolation, input, lower, upper) {
          let t = 0;
          if (interpolation.name === 'exponential') {
              t = exponentialInterpolation(input, interpolation.base, lower, upper);
          } else if (interpolation.name === 'linear') {
              t = exponentialInterpolation(input, 1, lower, upper);
          } else if (interpolation.name === 'cubic-bezier') {
              const c = interpolation.controlPoints;
              const ub = new unitbezier(c[0], c[1], c[2], c[3]);
              t = ub.solve(exponentialInterpolation(input, 1, lower, upper));
          }
          return t;
      }
      static parse(args, context) {
          let [operator, interpolation, input, ...rest] = args;
          if (!Array.isArray(interpolation) || interpolation.length === 0) {
              return context.error(`Expected an interpolation type expression.`, 1);
          }
          if (interpolation[0] === 'linear') {
              interpolation = { name: 'linear' };
          } else if (interpolation[0] === 'exponential') {
              const base = interpolation[1];
              if (typeof base !== 'number')
                  return context.error(`Exponential interpolation requires a numeric base.`, 1, 1);
              interpolation = {
                  name: 'exponential',
                  base
              };
          } else if (interpolation[0] === 'cubic-bezier') {
              const controlPoints = interpolation.slice(1);
              if (controlPoints.length !== 4 || controlPoints.some(t => typeof t !== 'number' || t < 0 || t > 1)) {
                  return context.error('Cubic bezier interpolation requires four numeric arguments with values between 0 and 1.', 1);
              }
              interpolation = {
                  name: 'cubic-bezier',
                  controlPoints: controlPoints
              };
          } else {
              return context.error(`Unknown interpolation type ${ String(interpolation[0]) }`, 1, 0);
          }
          if (args.length - 1 < 4) {
              return context.error(`Expected at least 4 arguments, but found only ${ args.length - 1 }.`);
          }
          if ((args.length - 1) % 2 !== 0) {
              return context.error(`Expected an even number of arguments.`);
          }
          input = context.parse(input, 2, NumberType);
          if (!input)
              return null;
          const stops = [];
          let outputType = null;
          if (operator === 'interpolate-hcl' || operator === 'interpolate-lab') {
              outputType = ColorType;
          } else if (context.expectedType && context.expectedType.kind !== 'value') {
              outputType = context.expectedType;
          }
          for (let i = 0; i < rest.length; i += 2) {
              const label = rest[i];
              const value = rest[i + 1];
              const labelKey = i + 3;
              const valueKey = i + 4;
              if (typeof label !== 'number') {
                  return context.error('Input/output pairs for "interpolate" expressions must be defined using literal numeric values (not computed expressions) for the input values.', labelKey);
              }
              if (stops.length && stops[stops.length - 1][0] >= label) {
                  return context.error('Input/output pairs for "interpolate" expressions must be arranged with input values in strictly ascending order.', labelKey);
              }
              const parsed = context.parse(value, valueKey, outputType);
              if (!parsed)
                  return null;
              outputType = outputType || parsed.type;
              stops.push([
                  label,
                  parsed
              ]);
          }
          if (outputType.kind !== 'number' && outputType.kind !== 'color' && !(outputType.kind === 'array' && outputType.itemType.kind === 'number' && typeof outputType.N === 'number')) {
              return context.error(`Type ${ toString(outputType) } is not interpolatable.`);
          }
          return new Interpolate(outputType, operator, interpolation, input, stops);
      }
      evaluate(ctx) {
          const labels = this.labels;
          const outputs = this.outputs;
          if (labels.length === 1) {
              return outputs[0].evaluate(ctx);
          }
          const value = this.input.evaluate(ctx);
          if (value <= labels[0]) {
              return outputs[0].evaluate(ctx);
          }
          const stopCount = labels.length;
          if (value >= labels[stopCount - 1]) {
              return outputs[stopCount - 1].evaluate(ctx);
          }
          const index = findStopLessThanOrEqualTo(labels, value);
          const lower = labels[index];
          const upper = labels[index + 1];
          const t = Interpolate.interpolationFactor(this.interpolation, value, lower, upper);
          const outputLower = outputs[index].evaluate(ctx);
          const outputUpper = outputs[index + 1].evaluate(ctx);
          if (this.operator === 'interpolate') {
              return interpolate[this.type.kind.toLowerCase()](outputLower, outputUpper, t);
          } else if (this.operator === 'interpolate-hcl') {
              return hcl.reverse(hcl.interpolate(hcl.forward(outputLower), hcl.forward(outputUpper), t));
          } else {
              return lab.reverse(lab.interpolate(lab.forward(outputLower), lab.forward(outputUpper), t));
          }
      }
      eachChild(fn) {
          fn(this.input);
          for (const expression of this.outputs) {
              fn(expression);
          }
      }
      outputDefined() {
          return this.outputs.every(out => out.outputDefined());
      }
      serialize() {
          let interpolation;
          if (this.interpolation.name === 'linear') {
              interpolation = ['linear'];
          } else if (this.interpolation.name === 'exponential') {
              if (this.interpolation.base === 1) {
                  interpolation = ['linear'];
              } else {
                  interpolation = [
                      'exponential',
                      this.interpolation.base
                  ];
              }
          } else {
              interpolation = ['cubic-bezier'].concat(this.interpolation.controlPoints);
          }
          const serialized = [
              this.operator,
              interpolation,
              this.input.serialize()
          ];
          for (let i = 0; i < this.labels.length; i++) {
              serialized.push(this.labels[i], this.outputs[i].serialize());
          }
          return serialized;
      }
  }
  function exponentialInterpolation(input, base, lowerValue, upperValue) {
      const difference = upperValue - lowerValue;
      const progress = input - lowerValue;
      if (difference === 0) {
          return 0;
      } else if (base === 1) {
          return progress / difference;
      } else {
          return (Math.pow(base, progress) - 1) / (Math.pow(base, difference) - 1);
      }
  }

  class Coalesce {
      constructor(type, args) {
          this.type = type;
          this.args = args;
      }
      static parse(args, context) {
          if (args.length < 2) {
              return context.error('Expectected at least one argument.');
          }
          let outputType = null;
          const expectedType = context.expectedType;
          if (expectedType && expectedType.kind !== 'value') {
              outputType = expectedType;
          }
          const parsedArgs = [];
          for (const arg of args.slice(1)) {
              const parsed = context.parse(arg, 1 + parsedArgs.length, outputType, undefined, { typeAnnotation: 'omit' });
              if (!parsed)
                  return null;
              outputType = outputType || parsed.type;
              parsedArgs.push(parsed);
          }
          const needsAnnotation = expectedType && parsedArgs.some(arg => checkSubtype(expectedType, arg.type));
          return needsAnnotation ? new Coalesce(ValueType, parsedArgs) : new Coalesce(outputType, parsedArgs);
      }
      evaluate(ctx) {
          let result = null;
          let argCount = 0;
          let firstImage;
          for (const arg of this.args) {
              argCount++;
              result = arg.evaluate(ctx);
              if (result && result instanceof ResolvedImage && !result.available) {
                  if (!firstImage) {
                      firstImage = result;
                  }
                  result = null;
                  if (argCount === this.args.length) {
                      return firstImage;
                  }
              }
              if (result !== null)
                  break;
          }
          return result;
      }
      eachChild(fn) {
          this.args.forEach(fn);
      }
      outputDefined() {
          return this.args.every(arg => arg.outputDefined());
      }
      serialize() {
          const serialized = ['coalesce'];
          this.eachChild(child => {
              serialized.push(child.serialize());
          });
          return serialized;
      }
  }

  class Let {
      constructor(bindings, result) {
          this.type = result.type;
          this.bindings = [].concat(bindings);
          this.result = result;
      }
      evaluate(ctx) {
          return this.result.evaluate(ctx);
      }
      eachChild(fn) {
          for (const binding of this.bindings) {
              fn(binding[1]);
          }
          fn(this.result);
      }
      static parse(args, context) {
          if (args.length < 4)
              return context.error(`Expected at least 3 arguments, but found ${ args.length - 1 } instead.`);
          const bindings = [];
          for (let i = 1; i < args.length - 1; i += 2) {
              const name = args[i];
              if (typeof name !== 'string') {
                  return context.error(`Expected string, but found ${ typeof name } instead.`, i);
              }
              if (/[^a-zA-Z0-9_]/.test(name)) {
                  return context.error(`Variable names must contain only alphanumeric characters or '_'.`, i);
              }
              const value = context.parse(args[i + 1], i + 1);
              if (!value)
                  return null;
              bindings.push([
                  name,
                  value
              ]);
          }
          const result = context.parse(args[args.length - 1], args.length - 1, context.expectedType, bindings);
          if (!result)
              return null;
          return new Let(bindings, result);
      }
      outputDefined() {
          return this.result.outputDefined();
      }
      serialize() {
          const serialized = ['let'];
          for (const [name, expr] of this.bindings) {
              serialized.push(name, expr.serialize());
          }
          serialized.push(this.result.serialize());
          return serialized;
      }
  }

  class At {
      constructor(type, index, input) {
          this.type = type;
          this.index = index;
          this.input = input;
      }
      static parse(args, context) {
          if (args.length !== 3)
              return context.error(`Expected 2 arguments, but found ${ args.length - 1 } instead.`);
          const index = context.parse(args[1], 1, NumberType);
          const input = context.parse(args[2], 2, array(context.expectedType || ValueType));
          if (!index || !input)
              return null;
          const t = input.type;
          return new At(t.itemType, index, input);
      }
      evaluate(ctx) {
          const index = this.index.evaluate(ctx);
          const array = this.input.evaluate(ctx);
          if (index < 0) {
              throw new RuntimeError(`Array index out of bounds: ${ index } < 0.`);
          }
          if (index >= array.length) {
              throw new RuntimeError(`Array index out of bounds: ${ index } > ${ array.length - 1 }.`);
          }
          if (index !== Math.floor(index)) {
              throw new RuntimeError(`Array index must be an integer, but found ${ index } instead.`);
          }
          return array[index];
      }
      eachChild(fn) {
          fn(this.index);
          fn(this.input);
      }
      outputDefined() {
          return false;
      }
      serialize() {
          return [
              'at',
              this.index.serialize(),
              this.input.serialize()
          ];
      }
  }

  class In {
      constructor(needle, haystack) {
          this.type = BooleanType;
          this.needle = needle;
          this.haystack = haystack;
      }
      static parse(args, context) {
          if (args.length !== 3) {
              return context.error(`Expected 2 arguments, but found ${ args.length - 1 } instead.`);
          }
          const needle = context.parse(args[1], 1, ValueType);
          const haystack = context.parse(args[2], 2, ValueType);
          if (!needle || !haystack)
              return null;
          if (!isValidType(needle.type, [
                  BooleanType,
                  StringType,
                  NumberType,
                  NullType,
                  ValueType
              ])) {
              return context.error(`Expected first argument to be of type boolean, string, number or null, but found ${ toString(needle.type) } instead`);
          }
          return new In(needle, haystack);
      }
      evaluate(ctx) {
          const needle = this.needle.evaluate(ctx);
          const haystack = this.haystack.evaluate(ctx);
          if (!haystack)
              return false;
          if (!isValidNativeType(needle, [
                  'boolean',
                  'string',
                  'number',
                  'null'
              ])) {
              throw new RuntimeError(`Expected first argument to be of type boolean, string, number or null, but found ${ toString(typeOf(needle)) } instead.`);
          }
          if (!isValidNativeType(haystack, [
                  'string',
                  'array'
              ])) {
              throw new RuntimeError(`Expected second argument to be of type array or string, but found ${ toString(typeOf(haystack)) } instead.`);
          }
          return haystack.indexOf(needle) >= 0;
      }
      eachChild(fn) {
          fn(this.needle);
          fn(this.haystack);
      }
      outputDefined() {
          return true;
      }
      serialize() {
          return [
              'in',
              this.needle.serialize(),
              this.haystack.serialize()
          ];
      }
  }

  class IndexOf {
      constructor(needle, haystack, fromIndex) {
          this.type = NumberType;
          this.needle = needle;
          this.haystack = haystack;
          this.fromIndex = fromIndex;
      }
      static parse(args, context) {
          if (args.length <= 2 || args.length >= 5) {
              return context.error(`Expected 3 or 4 arguments, but found ${ args.length - 1 } instead.`);
          }
          const needle = context.parse(args[1], 1, ValueType);
          const haystack = context.parse(args[2], 2, ValueType);
          if (!needle || !haystack)
              return null;
          if (!isValidType(needle.type, [
                  BooleanType,
                  StringType,
                  NumberType,
                  NullType,
                  ValueType
              ])) {
              return context.error(`Expected first argument to be of type boolean, string, number or null, but found ${ toString(needle.type) } instead`);
          }
          if (args.length === 4) {
              const fromIndex = context.parse(args[3], 3, NumberType);
              if (!fromIndex)
                  return null;
              return new IndexOf(needle, haystack, fromIndex);
          } else {
              return new IndexOf(needle, haystack);
          }
      }
      evaluate(ctx) {
          const needle = this.needle.evaluate(ctx);
          const haystack = this.haystack.evaluate(ctx);
          if (!isValidNativeType(needle, [
                  'boolean',
                  'string',
                  'number',
                  'null'
              ])) {
              throw new RuntimeError(`Expected first argument to be of type boolean, string, number or null, but found ${ toString(typeOf(needle)) } instead.`);
          }
          if (!isValidNativeType(haystack, [
                  'string',
                  'array'
              ])) {
              throw new RuntimeError(`Expected second argument to be of type array or string, but found ${ toString(typeOf(haystack)) } instead.`);
          }
          if (this.fromIndex) {
              const fromIndex = this.fromIndex.evaluate(ctx);
              return haystack.indexOf(needle, fromIndex);
          }
          return haystack.indexOf(needle);
      }
      eachChild(fn) {
          fn(this.needle);
          fn(this.haystack);
          if (this.fromIndex) {
              fn(this.fromIndex);
          }
      }
      outputDefined() {
          return false;
      }
      serialize() {
          if (this.fromIndex != null && this.fromIndex !== undefined) {
              const fromIndex = this.fromIndex.serialize();
              return [
                  'index-of',
                  this.needle.serialize(),
                  this.haystack.serialize(),
                  fromIndex
              ];
          }
          return [
              'index-of',
              this.needle.serialize(),
              this.haystack.serialize()
          ];
      }
  }

  class Match {
      constructor(inputType, outputType, input, cases, outputs, otherwise) {
          this.inputType = inputType;
          this.type = outputType;
          this.input = input;
          this.cases = cases;
          this.outputs = outputs;
          this.otherwise = otherwise;
      }
      static parse(args, context) {
          if (args.length < 5)
              return context.error(`Expected at least 4 arguments, but found only ${ args.length - 1 }.`);
          if (args.length % 2 !== 1)
              return context.error(`Expected an even number of arguments.`);
          let inputType;
          let outputType;
          if (context.expectedType && context.expectedType.kind !== 'value') {
              outputType = context.expectedType;
          }
          const cases = {};
          const outputs = [];
          for (let i = 2; i < args.length - 1; i += 2) {
              let labels = args[i];
              const value = args[i + 1];
              if (!Array.isArray(labels)) {
                  labels = [labels];
              }
              const labelContext = context.concat(i);
              if (labels.length === 0) {
                  return labelContext.error('Expected at least one branch label.');
              }
              for (const label of labels) {
                  if (typeof label !== 'number' && typeof label !== 'string') {
                      return labelContext.error(`Branch labels must be numbers or strings.`);
                  } else if (typeof label === 'number' && Math.abs(label) > Number.MAX_SAFE_INTEGER) {
                      return labelContext.error(`Branch labels must be integers no larger than ${ Number.MAX_SAFE_INTEGER }.`);
                  } else if (typeof label === 'number' && Math.floor(label) !== label) {
                      return labelContext.error(`Numeric branch labels must be integer values.`);
                  } else if (!inputType) {
                      inputType = typeOf(label);
                  } else if (labelContext.checkSubtype(inputType, typeOf(label))) {
                      return null;
                  }
                  if (typeof cases[String(label)] !== 'undefined') {
                      return labelContext.error('Branch labels must be unique.');
                  }
                  cases[String(label)] = outputs.length;
              }
              const result = context.parse(value, i, outputType);
              if (!result)
                  return null;
              outputType = outputType || result.type;
              outputs.push(result);
          }
          const input = context.parse(args[1], 1, ValueType);
          if (!input)
              return null;
          const otherwise = context.parse(args[args.length - 1], args.length - 1, outputType);
          if (!otherwise)
              return null;
          if (input.type.kind !== 'value' && context.concat(1).checkSubtype(inputType, input.type)) {
              return null;
          }
          return new Match(inputType, outputType, input, cases, outputs, otherwise);
      }
      evaluate(ctx) {
          const input = this.input.evaluate(ctx);
          const output = typeOf(input) === this.inputType && this.outputs[this.cases[input]] || this.otherwise;
          return output.evaluate(ctx);
      }
      eachChild(fn) {
          fn(this.input);
          this.outputs.forEach(fn);
          fn(this.otherwise);
      }
      outputDefined() {
          return this.outputs.every(out => out.outputDefined()) && this.otherwise.outputDefined();
      }
      serialize() {
          const serialized = [
              'match',
              this.input.serialize()
          ];
          const sortedLabels = Object.keys(this.cases).sort();
          const groupedByOutput = [];
          const outputLookup = {};
          for (const label of sortedLabels) {
              const outputIndex = outputLookup[this.cases[label]];
              if (outputIndex === undefined) {
                  outputLookup[this.cases[label]] = groupedByOutput.length;
                  groupedByOutput.push([
                      this.cases[label],
                      [label]
                  ]);
              } else {
                  groupedByOutput[outputIndex][1].push(label);
              }
          }
          const coerceLabel = label => this.inputType.kind === 'number' ? Number(label) : label;
          for (const [outputIndex, labels] of groupedByOutput) {
              if (labels.length === 1) {
                  serialized.push(coerceLabel(labels[0]));
              } else {
                  serialized.push(labels.map(coerceLabel));
              }
              serialized.push(this.outputs[outputIndex].serialize());
          }
          serialized.push(this.otherwise.serialize());
          return serialized;
      }
  }

  class Case {
      constructor(type, branches, otherwise) {
          this.type = type;
          this.branches = branches;
          this.otherwise = otherwise;
      }
      static parse(args, context) {
          if (args.length < 4)
              return context.error(`Expected at least 3 arguments, but found only ${ args.length - 1 }.`);
          if (args.length % 2 !== 0)
              return context.error(`Expected an odd number of arguments.`);
          let outputType;
          if (context.expectedType && context.expectedType.kind !== 'value') {
              outputType = context.expectedType;
          }
          const branches = [];
          for (let i = 1; i < args.length - 1; i += 2) {
              const test = context.parse(args[i], i, BooleanType);
              if (!test)
                  return null;
              const result = context.parse(args[i + 1], i + 1, outputType);
              if (!result)
                  return null;
              branches.push([
                  test,
                  result
              ]);
              outputType = outputType || result.type;
          }
          const otherwise = context.parse(args[args.length - 1], args.length - 1, outputType);
          if (!otherwise)
              return null;
          return new Case(outputType, branches, otherwise);
      }
      evaluate(ctx) {
          for (const [test, expression] of this.branches) {
              if (test.evaluate(ctx)) {
                  return expression.evaluate(ctx);
              }
          }
          return this.otherwise.evaluate(ctx);
      }
      eachChild(fn) {
          for (const [test, expression] of this.branches) {
              fn(test);
              fn(expression);
          }
          fn(this.otherwise);
      }
      outputDefined() {
          return this.branches.every(([_, out]) => out.outputDefined()) && this.otherwise.outputDefined();
      }
      serialize() {
          const serialized = ['case'];
          this.eachChild(child => {
              serialized.push(child.serialize());
          });
          return serialized;
      }
  }

  class Slice {
      constructor(type, input, beginIndex, endIndex) {
          this.type = type;
          this.input = input;
          this.beginIndex = beginIndex;
          this.endIndex = endIndex;
      }
      static parse(args, context) {
          if (args.length <= 2 || args.length >= 5) {
              return context.error(`Expected 3 or 4 arguments, but found ${ args.length - 1 } instead.`);
          }
          const input = context.parse(args[1], 1, ValueType);
          const beginIndex = context.parse(args[2], 2, NumberType);
          if (!input || !beginIndex)
              return null;
          if (!isValidType(input.type, [
                  array(ValueType),
                  StringType,
                  ValueType
              ])) {
              return context.error(`Expected first argument to be of type array or string, but found ${ toString(input.type) } instead`);
          }
          if (args.length === 4) {
              const endIndex = context.parse(args[3], 3, NumberType);
              if (!endIndex)
                  return null;
              return new Slice(input.type, input, beginIndex, endIndex);
          } else {
              return new Slice(input.type, input, beginIndex);
          }
      }
      evaluate(ctx) {
          const input = this.input.evaluate(ctx);
          const beginIndex = this.beginIndex.evaluate(ctx);
          if (!isValidNativeType(input, [
                  'string',
                  'array'
              ])) {
              throw new RuntimeError(`Expected first argument to be of type array or string, but found ${ toString(typeOf(input)) } instead.`);
          }
          if (this.endIndex) {
              const endIndex = this.endIndex.evaluate(ctx);
              return input.slice(beginIndex, endIndex);
          }
          return input.slice(beginIndex);
      }
      eachChild(fn) {
          fn(this.input);
          fn(this.beginIndex);
          if (this.endIndex) {
              fn(this.endIndex);
          }
      }
      outputDefined() {
          return false;
      }
      serialize() {
          if (this.endIndex != null && this.endIndex !== undefined) {
              const endIndex = this.endIndex.serialize();
              return [
                  'slice',
                  this.input.serialize(),
                  this.beginIndex.serialize(),
                  endIndex
              ];
          }
          return [
              'slice',
              this.input.serialize(),
              this.beginIndex.serialize()
          ];
      }
  }

  function isComparableType(op, type) {
      if (op === '==' || op === '!=') {
          return type.kind === 'boolean' || type.kind === 'string' || type.kind === 'number' || type.kind === 'null' || type.kind === 'value';
      } else {
          return type.kind === 'string' || type.kind === 'number' || type.kind === 'value';
      }
  }
  function eq(ctx, a, b) {
      return a === b;
  }
  function neq(ctx, a, b) {
      return a !== b;
  }
  function lt(ctx, a, b) {
      return a < b;
  }
  function gt(ctx, a, b) {
      return a > b;
  }
  function lteq(ctx, a, b) {
      return a <= b;
  }
  function gteq(ctx, a, b) {
      return a >= b;
  }
  function eqCollate(ctx, a, b, c) {
      return c.compare(a, b) === 0;
  }
  function neqCollate(ctx, a, b, c) {
      return !eqCollate(ctx, a, b, c);
  }
  function ltCollate(ctx, a, b, c) {
      return c.compare(a, b) < 0;
  }
  function gtCollate(ctx, a, b, c) {
      return c.compare(a, b) > 0;
  }
  function lteqCollate(ctx, a, b, c) {
      return c.compare(a, b) <= 0;
  }
  function gteqCollate(ctx, a, b, c) {
      return c.compare(a, b) >= 0;
  }
  function makeComparison(op, compareBasic, compareWithCollator) {
      const isOrderComparison = op !== '==' && op !== '!=';
      return class Comparison {
          constructor(lhs, rhs, collator) {
              this.type = BooleanType;
              this.lhs = lhs;
              this.rhs = rhs;
              this.collator = collator;
              this.hasUntypedArgument = lhs.type.kind === 'value' || rhs.type.kind === 'value';
          }
          static parse(args, context) {
              if (args.length !== 3 && args.length !== 4)
                  return context.error(`Expected two or three arguments.`);
              const op = args[0];
              let lhs = context.parse(args[1], 1, ValueType);
              if (!lhs)
                  return null;
              if (!isComparableType(op, lhs.type)) {
                  return context.concat(1).error(`"${ op }" comparisons are not supported for type '${ toString(lhs.type) }'.`);
              }
              let rhs = context.parse(args[2], 2, ValueType);
              if (!rhs)
                  return null;
              if (!isComparableType(op, rhs.type)) {
                  return context.concat(2).error(`"${ op }" comparisons are not supported for type '${ toString(rhs.type) }'.`);
              }
              if (lhs.type.kind !== rhs.type.kind && lhs.type.kind !== 'value' && rhs.type.kind !== 'value') {
                  return context.error(`Cannot compare types '${ toString(lhs.type) }' and '${ toString(rhs.type) }'.`);
              }
              if (isOrderComparison) {
                  if (lhs.type.kind === 'value' && rhs.type.kind !== 'value') {
                      lhs = new Assertion(rhs.type, [lhs]);
                  } else if (lhs.type.kind !== 'value' && rhs.type.kind === 'value') {
                      rhs = new Assertion(lhs.type, [rhs]);
                  }
              }
              let collator = null;
              if (args.length === 4) {
                  if (lhs.type.kind !== 'string' && rhs.type.kind !== 'string' && lhs.type.kind !== 'value' && rhs.type.kind !== 'value') {
                      return context.error(`Cannot use collator to compare non-string types.`);
                  }
                  collator = context.parse(args[3], 3, CollatorType);
                  if (!collator)
                      return null;
              }
              return new Comparison(lhs, rhs, collator);
          }
          evaluate(ctx) {
              const lhs = this.lhs.evaluate(ctx);
              const rhs = this.rhs.evaluate(ctx);
              if (isOrderComparison && this.hasUntypedArgument) {
                  const lt = typeOf(lhs);
                  const rt = typeOf(rhs);
                  if (lt.kind !== rt.kind || !(lt.kind === 'string' || lt.kind === 'number')) {
                      throw new RuntimeError(`Expected arguments for "${ op }" to be (string, string) or (number, number), but found (${ lt.kind }, ${ rt.kind }) instead.`);
                  }
              }
              if (this.collator && !isOrderComparison && this.hasUntypedArgument) {
                  const lt = typeOf(lhs);
                  const rt = typeOf(rhs);
                  if (lt.kind !== 'string' || rt.kind !== 'string') {
                      return compareBasic(ctx, lhs, rhs);
                  }
              }
              return this.collator ? compareWithCollator(ctx, lhs, rhs, this.collator.evaluate(ctx)) : compareBasic(ctx, lhs, rhs);
          }
          eachChild(fn) {
              fn(this.lhs);
              fn(this.rhs);
              if (this.collator) {
                  fn(this.collator);
              }
          }
          outputDefined() {
              return true;
          }
          serialize() {
              const serialized = [op];
              this.eachChild(child => {
                  serialized.push(child.serialize());
              });
              return serialized;
          }
      };
  }
  const Equals = makeComparison('==', eq, eqCollate);
  const NotEquals = makeComparison('!=', neq, neqCollate);
  const LessThan = makeComparison('<', lt, ltCollate);
  const GreaterThan = makeComparison('>', gt, gtCollate);
  const LessThanOrEqual = makeComparison('<=', lteq, lteqCollate);
  const GreaterThanOrEqual = makeComparison('>=', gteq, gteqCollate);

  class NumberFormat {
      constructor(number, locale, currency, minFractionDigits, maxFractionDigits) {
          this.type = StringType;
          this.number = number;
          this.locale = locale;
          this.currency = currency;
          this.minFractionDigits = minFractionDigits;
          this.maxFractionDigits = maxFractionDigits;
      }
      static parse(args, context) {
          if (args.length !== 3)
              return context.error(`Expected two arguments.`);
          const number = context.parse(args[1], 1, NumberType);
          if (!number)
              return null;
          const options = args[2];
          if (typeof options !== 'object' || Array.isArray(options))
              return context.error(`NumberFormat options argument must be an object.`);
          let locale = null;
          if (options['locale']) {
              locale = context.parse(options['locale'], 1, StringType);
              if (!locale)
                  return null;
          }
          let currency = null;
          if (options['currency']) {
              currency = context.parse(options['currency'], 1, StringType);
              if (!currency)
                  return null;
          }
          let minFractionDigits = null;
          if (options['min-fraction-digits']) {
              minFractionDigits = context.parse(options['min-fraction-digits'], 1, NumberType);
              if (!minFractionDigits)
                  return null;
          }
          let maxFractionDigits = null;
          if (options['max-fraction-digits']) {
              maxFractionDigits = context.parse(options['max-fraction-digits'], 1, NumberType);
              if (!maxFractionDigits)
                  return null;
          }
          return new NumberFormat(number, locale, currency, minFractionDigits, maxFractionDigits);
      }
      evaluate(ctx) {
          return new Intl.NumberFormat(this.locale ? this.locale.evaluate(ctx) : [], {
              style: this.currency ? 'currency' : 'decimal',
              currency: this.currency ? this.currency.evaluate(ctx) : undefined,
              minimumFractionDigits: this.minFractionDigits ? this.minFractionDigits.evaluate(ctx) : undefined,
              maximumFractionDigits: this.maxFractionDigits ? this.maxFractionDigits.evaluate(ctx) : undefined
          }).format(this.number.evaluate(ctx));
      }
      eachChild(fn) {
          fn(this.number);
          if (this.locale) {
              fn(this.locale);
          }
          if (this.currency) {
              fn(this.currency);
          }
          if (this.minFractionDigits) {
              fn(this.minFractionDigits);
          }
          if (this.maxFractionDigits) {
              fn(this.maxFractionDigits);
          }
      }
      outputDefined() {
          return false;
      }
      serialize() {
          const options = {};
          if (this.locale) {
              options['locale'] = this.locale.serialize();
          }
          if (this.currency) {
              options['currency'] = this.currency.serialize();
          }
          if (this.minFractionDigits) {
              options['min-fraction-digits'] = this.minFractionDigits.serialize();
          }
          if (this.maxFractionDigits) {
              options['max-fraction-digits'] = this.maxFractionDigits.serialize();
          }
          return [
              'number-format',
              this.number.serialize(),
              options
          ];
      }
  }

  class Length {
      constructor(input) {
          this.type = NumberType;
          this.input = input;
      }
      static parse(args, context) {
          if (args.length !== 2)
              return context.error(`Expected 1 argument, but found ${ args.length - 1 } instead.`);
          const input = context.parse(args[1], 1);
          if (!input)
              return null;
          if (input.type.kind !== 'array' && input.type.kind !== 'string' && input.type.kind !== 'value')
              return context.error(`Expected argument of type string or array, but found ${ toString(input.type) } instead.`);
          return new Length(input);
      }
      evaluate(ctx) {
          const input = this.input.evaluate(ctx);
          if (typeof input === 'string') {
              return input.length;
          } else if (Array.isArray(input)) {
              return input.length;
          } else {
              throw new RuntimeError(`Expected value to be of type string or array, but found ${ toString(typeOf(input)) } instead.`);
          }
      }
      eachChild(fn) {
          fn(this.input);
      }
      outputDefined() {
          return false;
      }
      serialize() {
          const serialized = ['length'];
          this.eachChild(child => {
              serialized.push(child.serialize());
          });
          return serialized;
      }
  }

  const expressions = {
      '==': Equals,
      '!=': NotEquals,
      '>': GreaterThan,
      '<': LessThan,
      '>=': GreaterThanOrEqual,
      '<=': LessThanOrEqual,
      'array': Assertion,
      'at': At,
      'boolean': Assertion,
      'case': Case,
      'coalesce': Coalesce,
      'collator': CollatorExpression,
      'format': FormatExpression,
      'image': ImageExpression,
      'in': In,
      'index-of': IndexOf,
      'interpolate': Interpolate,
      'interpolate-hcl': Interpolate,
      'interpolate-lab': Interpolate,
      'length': Length,
      'let': Let,
      'literal': Literal,
      'match': Match,
      'number': Assertion,
      'number-format': NumberFormat,
      'object': Assertion,
      'slice': Slice,
      'step': Step,
      'string': Assertion,
      'to-boolean': Coercion,
      'to-color': Coercion,
      'to-number': Coercion,
      'to-string': Coercion,
      'var': Var,
      'within': Within
  };
  function rgba(ctx, [r, g, b, a]) {
      r = r.evaluate(ctx);
      g = g.evaluate(ctx);
      b = b.evaluate(ctx);
      const alpha = a ? a.evaluate(ctx) : 1;
      const error = validateRGBA(r, g, b, alpha);
      if (error)
          throw new RuntimeError(error);
      return new Color(r / 255 * alpha, g / 255 * alpha, b / 255 * alpha, alpha);
  }
  function has(key, obj) {
      return key in obj;
  }
  function get(key, obj) {
      const v = obj[key];
      return typeof v === 'undefined' ? null : v;
  }
  function binarySearch(v, a, i, j) {
      while (i <= j) {
          const m = i + j >> 1;
          if (a[m] === v)
              return true;
          if (a[m] > v)
              j = m - 1;
          else
              i = m + 1;
      }
      return false;
  }
  function varargs(type) {
      return { type };
  }
  CompoundExpression.register(expressions, {
      'error': [
          ErrorType,
          [StringType],
          (ctx, [v]) => {
              throw new RuntimeError(v.evaluate(ctx));
          }
      ],
      'typeof': [
          StringType,
          [ValueType],
          (ctx, [v]) => toString(typeOf(v.evaluate(ctx)))
      ],
      'to-rgba': [
          array(NumberType, 4),
          [ColorType],
          (ctx, [v]) => {
              return v.evaluate(ctx).toArray();
          }
      ],
      'rgb': [
          ColorType,
          [
              NumberType,
              NumberType,
              NumberType
          ],
          rgba
      ],
      'rgba': [
          ColorType,
          [
              NumberType,
              NumberType,
              NumberType,
              NumberType
          ],
          rgba
      ],
      'has': {
          type: BooleanType,
          overloads: [
              [
                  [StringType],
                  (ctx, [key]) => has(key.evaluate(ctx), ctx.properties())
              ],
              [
                  [
                      StringType,
                      ObjectType
                  ],
                  (ctx, [key, obj]) => has(key.evaluate(ctx), obj.evaluate(ctx))
              ]
          ]
      },
      'get': {
          type: ValueType,
          overloads: [
              [
                  [StringType],
                  (ctx, [key]) => get(key.evaluate(ctx), ctx.properties())
              ],
              [
                  [
                      StringType,
                      ObjectType
                  ],
                  (ctx, [key, obj]) => get(key.evaluate(ctx), obj.evaluate(ctx))
              ]
          ]
      },
      'feature-state': [
          ValueType,
          [StringType],
          (ctx, [key]) => get(key.evaluate(ctx), ctx.featureState || {})
      ],
      'properties': [
          ObjectType,
          [],
          ctx => ctx.properties()
      ],
      'geometry-type': [
          StringType,
          [],
          ctx => ctx.geometryType()
      ],
      'id': [
          ValueType,
          [],
          ctx => ctx.id()
      ],
      'zoom': [
          NumberType,
          [],
          ctx => ctx.globals.zoom
      ],
      'pitch': [
          NumberType,
          [],
          ctx => ctx.globals.pitch || 0
      ],
      'distance-from-center': [
          NumberType,
          [],
          ctx => ctx.distanceFromCenter()
      ],
      'heatmap-density': [
          NumberType,
          [],
          ctx => ctx.globals.heatmapDensity || 0
      ],
      'line-progress': [
          NumberType,
          [],
          ctx => ctx.globals.lineProgress || 0
      ],
      'sky-radial-progress': [
          NumberType,
          [],
          ctx => ctx.globals.skyRadialProgress || 0
      ],
      'accumulated': [
          ValueType,
          [],
          ctx => ctx.globals.accumulated === undefined ? null : ctx.globals.accumulated
      ],
      '+': [
          NumberType,
          varargs(NumberType),
          (ctx, args) => {
              let result = 0;
              for (const arg of args) {
                  result += arg.evaluate(ctx);
              }
              return result;
          }
      ],
      '*': [
          NumberType,
          varargs(NumberType),
          (ctx, args) => {
              let result = 1;
              for (const arg of args) {
                  result *= arg.evaluate(ctx);
              }
              return result;
          }
      ],
      '-': {
          type: NumberType,
          overloads: [
              [
                  [
                      NumberType,
                      NumberType
                  ],
                  (ctx, [a, b]) => a.evaluate(ctx) - b.evaluate(ctx)
              ],
              [
                  [NumberType],
                  (ctx, [a]) => -a.evaluate(ctx)
              ]
          ]
      },
      '/': [
          NumberType,
          [
              NumberType,
              NumberType
          ],
          (ctx, [a, b]) => a.evaluate(ctx) / b.evaluate(ctx)
      ],
      '%': [
          NumberType,
          [
              NumberType,
              NumberType
          ],
          (ctx, [a, b]) => a.evaluate(ctx) % b.evaluate(ctx)
      ],
      'ln2': [
          NumberType,
          [],
          () => Math.LN2
      ],
      'pi': [
          NumberType,
          [],
          () => Math.PI
      ],
      'e': [
          NumberType,
          [],
          () => Math.E
      ],
      '^': [
          NumberType,
          [
              NumberType,
              NumberType
          ],
          (ctx, [b, e]) => Math.pow(b.evaluate(ctx), e.evaluate(ctx))
      ],
      'sqrt': [
          NumberType,
          [NumberType],
          (ctx, [x]) => Math.sqrt(x.evaluate(ctx))
      ],
      'log10': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.log(n.evaluate(ctx)) / Math.LN10
      ],
      'ln': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.log(n.evaluate(ctx))
      ],
      'log2': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.log(n.evaluate(ctx)) / Math.LN2
      ],
      'sin': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.sin(n.evaluate(ctx))
      ],
      'cos': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.cos(n.evaluate(ctx))
      ],
      'tan': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.tan(n.evaluate(ctx))
      ],
      'asin': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.asin(n.evaluate(ctx))
      ],
      'acos': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.acos(n.evaluate(ctx))
      ],
      'atan': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.atan(n.evaluate(ctx))
      ],
      'min': [
          NumberType,
          varargs(NumberType),
          (ctx, args) => Math.min(...args.map(arg => arg.evaluate(ctx)))
      ],
      'max': [
          NumberType,
          varargs(NumberType),
          (ctx, args) => Math.max(...args.map(arg => arg.evaluate(ctx)))
      ],
      'abs': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.abs(n.evaluate(ctx))
      ],
      'round': [
          NumberType,
          [NumberType],
          (ctx, [n]) => {
              const v = n.evaluate(ctx);
              return v < 0 ? -Math.round(-v) : Math.round(v);
          }
      ],
      'floor': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.floor(n.evaluate(ctx))
      ],
      'ceil': [
          NumberType,
          [NumberType],
          (ctx, [n]) => Math.ceil(n.evaluate(ctx))
      ],
      'filter-==': [
          BooleanType,
          [
              StringType,
              ValueType
          ],
          (ctx, [k, v]) => ctx.properties()[k.value] === v.value
      ],
      'filter-id-==': [
          BooleanType,
          [ValueType],
          (ctx, [v]) => ctx.id() === v.value
      ],
      'filter-type-==': [
          BooleanType,
          [StringType],
          (ctx, [v]) => ctx.geometryType() === v.value
      ],
      'filter-<': [
          BooleanType,
          [
              StringType,
              ValueType
          ],
          (ctx, [k, v]) => {
              const a = ctx.properties()[k.value];
              const b = v.value;
              return typeof a === typeof b && a < b;
          }
      ],
      'filter-id-<': [
          BooleanType,
          [ValueType],
          (ctx, [v]) => {
              const a = ctx.id();
              const b = v.value;
              return typeof a === typeof b && a < b;
          }
      ],
      'filter->': [
          BooleanType,
          [
              StringType,
              ValueType
          ],
          (ctx, [k, v]) => {
              const a = ctx.properties()[k.value];
              const b = v.value;
              return typeof a === typeof b && a > b;
          }
      ],
      'filter-id->': [
          BooleanType,
          [ValueType],
          (ctx, [v]) => {
              const a = ctx.id();
              const b = v.value;
              return typeof a === typeof b && a > b;
          }
      ],
      'filter-<=': [
          BooleanType,
          [
              StringType,
              ValueType
          ],
          (ctx, [k, v]) => {
              const a = ctx.properties()[k.value];
              const b = v.value;
              return typeof a === typeof b && a <= b;
          }
      ],
      'filter-id-<=': [
          BooleanType,
          [ValueType],
          (ctx, [v]) => {
              const a = ctx.id();
              const b = v.value;
              return typeof a === typeof b && a <= b;
          }
      ],
      'filter->=': [
          BooleanType,
          [
              StringType,
              ValueType
          ],
          (ctx, [k, v]) => {
              const a = ctx.properties()[k.value];
              const b = v.value;
              return typeof a === typeof b && a >= b;
          }
      ],
      'filter-id->=': [
          BooleanType,
          [ValueType],
          (ctx, [v]) => {
              const a = ctx.id();
              const b = v.value;
              return typeof a === typeof b && a >= b;
          }
      ],
      'filter-has': [
          BooleanType,
          [ValueType],
          (ctx, [k]) => k.value in ctx.properties()
      ],
      'filter-has-id': [
          BooleanType,
          [],
          ctx => ctx.id() !== null && ctx.id() !== undefined
      ],
      'filter-type-in': [
          BooleanType,
          [array(StringType)],
          (ctx, [v]) => v.value.indexOf(ctx.geometryType()) >= 0
      ],
      'filter-id-in': [
          BooleanType,
          [array(ValueType)],
          (ctx, [v]) => v.value.indexOf(ctx.id()) >= 0
      ],
      'filter-in-small': [
          BooleanType,
          [
              StringType,
              array(ValueType)
          ],
          (ctx, [k, v]) => v.value.indexOf(ctx.properties()[k.value]) >= 0
      ],
      'filter-in-large': [
          BooleanType,
          [
              StringType,
              array(ValueType)
          ],
          (ctx, [k, v]) => binarySearch(ctx.properties()[k.value], v.value, 0, v.value.length - 1)
      ],
      'all': {
          type: BooleanType,
          overloads: [
              [
                  [
                      BooleanType,
                      BooleanType
                  ],
                  (ctx, [a, b]) => a.evaluate(ctx) && b.evaluate(ctx)
              ],
              [
                  varargs(BooleanType),
                  (ctx, args) => {
                      for (const arg of args) {
                          if (!arg.evaluate(ctx))
                              return false;
                      }
                      return true;
                  }
              ]
          ]
      },
      'any': {
          type: BooleanType,
          overloads: [
              [
                  [
                      BooleanType,
                      BooleanType
                  ],
                  (ctx, [a, b]) => a.evaluate(ctx) || b.evaluate(ctx)
              ],
              [
                  varargs(BooleanType),
                  (ctx, args) => {
                      for (const arg of args) {
                          if (arg.evaluate(ctx))
                              return true;
                      }
                      return false;
                  }
              ]
          ]
      },
      '!': [
          BooleanType,
          [BooleanType],
          (ctx, [b]) => !b.evaluate(ctx)
      ],
      'is-supported-script': [
          BooleanType,
          [StringType],
          (ctx, [s]) => {
              const isSupportedScript = ctx.globals && ctx.globals.isSupportedScript;
              if (isSupportedScript) {
                  return isSupportedScript(s.evaluate(ctx));
              }
              return true;
          }
      ],
      'upcase': [
          StringType,
          [StringType],
          (ctx, [s]) => s.evaluate(ctx).toUpperCase()
      ],
      'downcase': [
          StringType,
          [StringType],
          (ctx, [s]) => s.evaluate(ctx).toLowerCase()
      ],
      'concat': [
          StringType,
          varargs(ValueType),
          (ctx, args) => args.map(arg => toString$1(arg.evaluate(ctx))).join('')
      ],
      'resolved-locale': [
          StringType,
          [CollatorType],
          (ctx, [collator]) => collator.evaluate(ctx).resolvedLocale()
      ]
  });

  function success(value) {
      return {
          result: 'success',
          value
      };
  }
  function error(value) {
      return {
          result: 'error',
          value
      };
  }

  function supportsPropertyExpression(spec) {
      return spec['property-type'] === 'data-driven' || spec['property-type'] === 'cross-faded-data-driven';
  }
  function supportsZoomExpression(spec) {
      return !!spec.expression && spec.expression.parameters.indexOf('zoom') > -1;
  }
  function supportsInterpolation(spec) {
      return !!spec.expression && spec.expression.interpolated;
  }

  function getType(val) {
      if (val instanceof Number) {
          return 'number';
      } else if (val instanceof String) {
          return 'string';
      } else if (val instanceof Boolean) {
          return 'boolean';
      } else if (Array.isArray(val)) {
          return 'array';
      } else if (val === null) {
          return 'null';
      } else {
          return typeof val;
      }
  }

  function isFunction$1(value) {
      return typeof value === 'object' && value !== null && !Array.isArray(value);
  }
  function identityFunction(x) {
      return x;
  }
  function createFunction(parameters, propertySpec) {
      const isColor = propertySpec.type === 'color';
      const zoomAndFeatureDependent = parameters.stops && typeof parameters.stops[0][0] === 'object';
      const featureDependent = zoomAndFeatureDependent || parameters.property !== undefined;
      const zoomDependent = zoomAndFeatureDependent || !featureDependent;
      const type = parameters.type || (supportsInterpolation(propertySpec) ? 'exponential' : 'interval');
      if (isColor) {
          parameters = extend({}, parameters);
          if (parameters.stops) {
              parameters.stops = parameters.stops.map(stop => {
                  return [
                      stop[0],
                      Color.parse(stop[1])
                  ];
              });
          }
          if (parameters.default) {
              parameters.default = Color.parse(parameters.default);
          } else {
              parameters.default = Color.parse(propertySpec.default);
          }
      }
      if (parameters.colorSpace && parameters.colorSpace !== 'rgb' && !colorSpaces[parameters.colorSpace]) {
          throw new Error(`Unknown color space: ${ parameters.colorSpace }`);
      }
      let innerFun;
      let hashedStops;
      let categoricalKeyType;
      if (type === 'exponential') {
          innerFun = evaluateExponentialFunction;
      } else if (type === 'interval') {
          innerFun = evaluateIntervalFunction;
      } else if (type === 'categorical') {
          innerFun = evaluateCategoricalFunction;
          hashedStops = Object.create(null);
          for (const stop of parameters.stops) {
              hashedStops[stop[0]] = stop[1];
          }
          categoricalKeyType = typeof parameters.stops[0][0];
      } else if (type === 'identity') {
          innerFun = evaluateIdentityFunction;
      } else {
          throw new Error(`Unknown function type "${ type }"`);
      }
      if (zoomAndFeatureDependent) {
          const featureFunctions = {};
          const zoomStops = [];
          for (let s = 0; s < parameters.stops.length; s++) {
              const stop = parameters.stops[s];
              const zoom = stop[0].zoom;
              if (featureFunctions[zoom] === undefined) {
                  featureFunctions[zoom] = {
                      zoom,
                      type: parameters.type,
                      property: parameters.property,
                      default: parameters.default,
                      stops: []
                  };
                  zoomStops.push(zoom);
              }
              featureFunctions[zoom].stops.push([
                  stop[0].value,
                  stop[1]
              ]);
          }
          const featureFunctionStops = [];
          for (const z of zoomStops) {
              featureFunctionStops.push([
                  featureFunctions[z].zoom,
                  createFunction(featureFunctions[z], propertySpec)
              ]);
          }
          const interpolationType = { name: 'linear' };
          return {
              kind: 'composite',
              interpolationType,
              interpolationFactor: Interpolate.interpolationFactor.bind(undefined, interpolationType),
              zoomStops: featureFunctionStops.map(s => s[0]),
              evaluate({zoom}, properties) {
                  return evaluateExponentialFunction({
                      stops: featureFunctionStops,
                      base: parameters.base
                  }, propertySpec, zoom).evaluate(zoom, properties);
              }
          };
      } else if (zoomDependent) {
          const interpolationType = type === 'exponential' ? {
              name: 'exponential',
              base: parameters.base !== undefined ? parameters.base : 1
          } : null;
          return {
              kind: 'camera',
              interpolationType,
              interpolationFactor: Interpolate.interpolationFactor.bind(undefined, interpolationType),
              zoomStops: parameters.stops.map(s => s[0]),
              evaluate: ({zoom}) => innerFun(parameters, propertySpec, zoom, hashedStops, categoricalKeyType)
          };
      } else {
          return {
              kind: 'source',
              evaluate(_, feature) {
                  const value = feature && feature.properties ? feature.properties[parameters.property] : undefined;
                  if (value === undefined) {
                      return coalesce(parameters.default, propertySpec.default);
                  }
                  return innerFun(parameters, propertySpec, value, hashedStops, categoricalKeyType);
              }
          };
      }
  }
  function coalesce(a, b, c) {
      if (a !== undefined)
          return a;
      if (b !== undefined)
          return b;
      if (c !== undefined)
          return c;
  }
  function evaluateCategoricalFunction(parameters, propertySpec, input, hashedStops, keyType) {
      const evaluated = typeof input === keyType ? hashedStops[input] : undefined;
      return coalesce(evaluated, parameters.default, propertySpec.default);
  }
  function evaluateIntervalFunction(parameters, propertySpec, input) {
      if (getType(input) !== 'number')
          return coalesce(parameters.default, propertySpec.default);
      const n = parameters.stops.length;
      if (n === 1)
          return parameters.stops[0][1];
      if (input <= parameters.stops[0][0])
          return parameters.stops[0][1];
      if (input >= parameters.stops[n - 1][0])
          return parameters.stops[n - 1][1];
      const index = findStopLessThanOrEqualTo(parameters.stops.map(stop => stop[0]), input);
      return parameters.stops[index][1];
  }
  function evaluateExponentialFunction(parameters, propertySpec, input) {
      const base = parameters.base !== undefined ? parameters.base : 1;
      if (getType(input) !== 'number')
          return coalesce(parameters.default, propertySpec.default);
      const n = parameters.stops.length;
      if (n === 1)
          return parameters.stops[0][1];
      if (input <= parameters.stops[0][0])
          return parameters.stops[0][1];
      if (input >= parameters.stops[n - 1][0])
          return parameters.stops[n - 1][1];
      const index = findStopLessThanOrEqualTo(parameters.stops.map(stop => stop[0]), input);
      const t = interpolationFactor(input, base, parameters.stops[index][0], parameters.stops[index + 1][0]);
      const outputLower = parameters.stops[index][1];
      const outputUpper = parameters.stops[index + 1][1];
      let interp = interpolate[propertySpec.type] || identityFunction;
      if (parameters.colorSpace && parameters.colorSpace !== 'rgb') {
          const colorspace = colorSpaces[parameters.colorSpace];
          interp = (a, b) => colorspace.reverse(colorspace.interpolate(colorspace.forward(a), colorspace.forward(b), t));
      }
      if (typeof outputLower.evaluate === 'function') {
          return {
              evaluate(...args) {
                  const evaluatedLower = outputLower.evaluate.apply(undefined, args);
                  const evaluatedUpper = outputUpper.evaluate.apply(undefined, args);
                  if (evaluatedLower === undefined || evaluatedUpper === undefined) {
                      return undefined;
                  }
                  return interp(evaluatedLower, evaluatedUpper, t);
              }
          };
      }
      return interp(outputLower, outputUpper, t);
  }
  function evaluateIdentityFunction(parameters, propertySpec, input) {
      if (propertySpec.type === 'color') {
          input = Color.parse(input);
      } else if (propertySpec.type === 'formatted') {
          input = Formatted.fromString(input.toString());
      } else if (propertySpec.type === 'resolvedImage') {
          input = ResolvedImage.fromString(input.toString());
      } else if (getType(input) !== propertySpec.type && (propertySpec.type !== 'enum' || !propertySpec.values[input])) {
          input = undefined;
      }
      return coalesce(input, parameters.default, propertySpec.default);
  }
  function interpolationFactor(input, base, lowerValue, upperValue) {
      const difference = upperValue - lowerValue;
      const progress = input - lowerValue;
      if (difference === 0) {
          return 0;
      } else if (base === 1) {
          return progress / difference;
      } else {
          return (Math.pow(base, progress) - 1) / (Math.pow(base, difference) - 1);
      }
  }

  class StyleExpression {
      constructor(expression, propertySpec) {
          this.expression = expression;
          this._warningHistory = {};
          this._evaluator = new EvaluationContext();
          this._defaultValue = propertySpec ? getDefaultValue(propertySpec) : null;
          this._enumValues = propertySpec && propertySpec.type === 'enum' ? propertySpec.values : null;
      }
      evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection, featureTileCoord, featureDistanceData) {
          this._evaluator.globals = globals;
          this._evaluator.feature = feature;
          this._evaluator.featureState = featureState;
          this._evaluator.canonical = canonical;
          this._evaluator.availableImages = availableImages || null;
          this._evaluator.formattedSection = formattedSection;
          this._evaluator.featureTileCoord = featureTileCoord || null;
          this._evaluator.featureDistanceData = featureDistanceData || null;
          return this.expression.evaluate(this._evaluator);
      }
      evaluate(globals, feature, featureState, canonical, availableImages, formattedSection, featureTileCoord, featureDistanceData) {
          this._evaluator.globals = globals;
          this._evaluator.feature = feature || null;
          this._evaluator.featureState = featureState || null;
          this._evaluator.canonical = canonical;
          this._evaluator.availableImages = availableImages || null;
          this._evaluator.formattedSection = formattedSection || null;
          this._evaluator.featureTileCoord = featureTileCoord || null;
          this._evaluator.featureDistanceData = featureDistanceData || null;
          try {
              const val = this.expression.evaluate(this._evaluator);
              if (val === null || val === undefined || typeof val === 'number' && val !== val) {
                  return this._defaultValue;
              }
              if (this._enumValues && !(val in this._enumValues)) {
                  throw new RuntimeError(`Expected value to be one of ${ Object.keys(this._enumValues).map(v => JSON.stringify(v)).join(', ') }, but found ${ JSON.stringify(val) } instead.`);
              }
              return val;
          } catch (e) {
              if (!this._warningHistory[e.message]) {
                  this._warningHistory[e.message] = true;
                  if (typeof console !== 'undefined') {
                      console.warn(e.message);
                  }
              }
              return this._defaultValue;
          }
      }
  }
  function isExpression(expression) {
      return Array.isArray(expression) && expression.length > 0 && typeof expression[0] === 'string' && expression[0] in expressions;
  }
  function createExpression(expression, propertySpec) {
      const parser = new ParsingContext(expressions, [], propertySpec ? getExpectedType(propertySpec) : undefined);
      const parsed = parser.parse(expression, undefined, undefined, undefined, propertySpec && propertySpec.type === 'string' ? { typeAnnotation: 'coerce' } : undefined);
      if (!parsed) {
          return error(parser.errors);
      }
      return success(new StyleExpression(parsed, propertySpec));
  }
  class ZoomConstantExpression {
      constructor(kind, expression) {
          this.kind = kind;
          this._styleExpression = expression;
          this.isStateDependent = kind !== 'constant' && !isStateConstant(expression.expression);
      }
      evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection) {
          return this._styleExpression.evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection);
      }
      evaluate(globals, feature, featureState, canonical, availableImages, formattedSection) {
          return this._styleExpression.evaluate(globals, feature, featureState, canonical, availableImages, formattedSection);
      }
  }
  class ZoomDependentExpression {
      constructor(kind, expression, zoomStops, interpolationType) {
          this.kind = kind;
          this.zoomStops = zoomStops;
          this._styleExpression = expression;
          this.isStateDependent = kind !== 'camera' && !isStateConstant(expression.expression);
          this.interpolationType = interpolationType;
      }
      evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection) {
          return this._styleExpression.evaluateWithoutErrorHandling(globals, feature, featureState, canonical, availableImages, formattedSection);
      }
      evaluate(globals, feature, featureState, canonical, availableImages, formattedSection) {
          return this._styleExpression.evaluate(globals, feature, featureState, canonical, availableImages, formattedSection);
      }
      interpolationFactor(input, lower, upper) {
          if (this.interpolationType) {
              return Interpolate.interpolationFactor(this.interpolationType, input, lower, upper);
          } else {
              return 0;
          }
      }
  }
  function createPropertyExpression(expression, propertySpec) {
      expression = createExpression(expression, propertySpec);
      if (expression.result === 'error') {
          return expression;
      }
      const parsed = expression.value.expression;
      const isFeatureConstant$1 = isFeatureConstant(parsed);
      if (!isFeatureConstant$1 && !supportsPropertyExpression(propertySpec)) {
          return error([new ParsingError('', 'data expressions not supported')]);
      }
      const isZoomConstant = isGlobalPropertyConstant(parsed, [
          'zoom',
          'pitch',
          'distance-from-center'
      ]);
      if (!isZoomConstant && !supportsZoomExpression(propertySpec)) {
          return error([new ParsingError('', 'zoom expressions not supported')]);
      }
      const zoomCurve = findZoomCurve(parsed);
      if (!zoomCurve && !isZoomConstant) {
          return error([new ParsingError('', '"zoom" expression may only be used as input to a top-level "step" or "interpolate" expression.')]);
      } else if (zoomCurve instanceof ParsingError) {
          return error([zoomCurve]);
      } else if (zoomCurve instanceof Interpolate && !supportsInterpolation(propertySpec)) {
          return error([new ParsingError('', '"interpolate" expressions cannot be used with this property')]);
      }
      if (!zoomCurve) {
          return success(isFeatureConstant$1 ? new ZoomConstantExpression('constant', expression.value) : new ZoomConstantExpression('source', expression.value));
      }
      const interpolationType = zoomCurve instanceof Interpolate ? zoomCurve.interpolation : undefined;
      return success(isFeatureConstant$1 ? new ZoomDependentExpression('camera', expression.value, zoomCurve.labels, interpolationType) : new ZoomDependentExpression('composite', expression.value, zoomCurve.labels, interpolationType));
  }
  class StylePropertyFunction {
      constructor(parameters, specification) {
          this._parameters = parameters;
          this._specification = specification;
          extend(this, createFunction(this._parameters, this._specification));
      }
      static deserialize(serialized) {
          return new StylePropertyFunction(serialized._parameters, serialized._specification);
      }
      static serialize(input) {
          return {
              _parameters: input._parameters,
              _specification: input._specification
          };
      }
  }
  function normalizePropertyExpression(value, specification) {
      if (isFunction$1(value)) {
          return new StylePropertyFunction(value, specification);
      } else if (isExpression(value)) {
          const expression = createPropertyExpression(value, specification);
          if (expression.result === 'error') {
              throw new Error(expression.value.map(err => `${ err.key }: ${ err.message }`).join(', '));
          }
          return expression.value;
      } else {
          let constant = value;
          if (typeof value === 'string' && specification.type === 'color') {
              constant = Color.parse(value);
          }
          return {
              kind: 'constant',
              evaluate: () => constant
          };
      }
  }
  function findZoomCurve(expression) {
      let result = null;
      if (expression instanceof Let) {
          result = findZoomCurve(expression.result);
      } else if (expression instanceof Coalesce) {
          for (const arg of expression.args) {
              result = findZoomCurve(arg);
              if (result) {
                  break;
              }
          }
      } else if ((expression instanceof Step || expression instanceof Interpolate) && expression.input instanceof CompoundExpression && expression.input.name === 'zoom') {
          result = expression;
      }
      if (result instanceof ParsingError) {
          return result;
      }
      expression.eachChild(child => {
          const childResult = findZoomCurve(child);
          if (childResult instanceof ParsingError) {
              result = childResult;
          } else if (!result && childResult) {
              result = new ParsingError('', '"zoom" expression may only be used as input to a top-level "step" or "interpolate" expression.');
          } else if (result && childResult && result !== childResult) {
              result = new ParsingError('', 'Only one zoom-based "step" or "interpolate" subexpression may be used in an expression.');
          }
      });
      return result;
  }
  function getExpectedType(spec) {
      const types = {
          color: ColorType,
          string: StringType,
          number: NumberType,
          enum: StringType,
          boolean: BooleanType,
          formatted: FormattedType,
          resolvedImage: ResolvedImageType
      };
      if (spec.type === 'array') {
          return array(types[spec.value] || ValueType, spec.length);
      }
      return types[spec.type];
  }
  function getDefaultValue(spec) {
      if (spec.type === 'color' && isFunction$1(spec.default)) {
          return new Color(0, 0, 0, 0);
      } else if (spec.type === 'color') {
          return Color.parse(spec.default) || null;
      } else if (spec.default === undefined) {
          return null;
      } else {
          return spec.default;
      }
  }

  function convertLiteral(value) {
      return typeof value === 'object' ? [
          'literal',
          value
      ] : value;
  }
  function convertFunction(parameters, propertySpec) {
      let stops = parameters.stops;
      if (!stops) {
          return convertIdentityFunction(parameters, propertySpec);
      }
      const zoomAndFeatureDependent = stops && typeof stops[0][0] === 'object';
      const featureDependent = zoomAndFeatureDependent || parameters.property !== undefined;
      const zoomDependent = zoomAndFeatureDependent || !featureDependent;
      stops = stops.map(stop => {
          if (!featureDependent && propertySpec.tokens && typeof stop[1] === 'string') {
              return [
                  stop[0],
                  convertTokenString(stop[1])
              ];
          }
          return [
              stop[0],
              convertLiteral(stop[1])
          ];
      });
      if (zoomAndFeatureDependent) {
          return convertZoomAndPropertyFunction(parameters, propertySpec, stops);
      } else if (zoomDependent) {
          return convertZoomFunction(parameters, propertySpec, stops);
      } else {
          return convertPropertyFunction(parameters, propertySpec, stops);
      }
  }
  function convertIdentityFunction(parameters, propertySpec) {
      const get = [
          'get',
          parameters.property
      ];
      if (parameters.default === undefined) {
          return propertySpec.type === 'string' ? [
              'string',
              get
          ] : get;
      } else if (propertySpec.type === 'enum') {
          return [
              'match',
              get,
              Object.keys(propertySpec.values),
              get,
              parameters.default
          ];
      } else {
          const expression = [
              propertySpec.type === 'color' ? 'to-color' : propertySpec.type,
              get,
              convertLiteral(parameters.default)
          ];
          if (propertySpec.type === 'array') {
              expression.splice(1, 0, propertySpec.value, propertySpec.length || null);
          }
          return expression;
      }
  }
  function getInterpolateOperator(parameters) {
      switch (parameters.colorSpace) {
      case 'hcl':
          return 'interpolate-hcl';
      case 'lab':
          return 'interpolate-lab';
      default:
          return 'interpolate';
      }
  }
  function convertZoomAndPropertyFunction(parameters, propertySpec, stops) {
      const featureFunctionParameters = {};
      const featureFunctionStops = {};
      const zoomStops = [];
      for (let s = 0; s < stops.length; s++) {
          const stop = stops[s];
          const zoom = stop[0].zoom;
          if (featureFunctionParameters[zoom] === undefined) {
              featureFunctionParameters[zoom] = {
                  zoom,
                  type: parameters.type,
                  property: parameters.property,
                  default: parameters.default
              };
              featureFunctionStops[zoom] = [];
              zoomStops.push(zoom);
          }
          featureFunctionStops[zoom].push([
              stop[0].value,
              stop[1]
          ]);
      }
      const functionType = getFunctionType({}, propertySpec);
      if (functionType === 'exponential') {
          const expression = [
              getInterpolateOperator(parameters),
              ['linear'],
              ['zoom']
          ];
          for (const z of zoomStops) {
              const output = convertPropertyFunction(featureFunctionParameters[z], propertySpec, featureFunctionStops[z]);
              appendStopPair(expression, z, output, false);
          }
          return expression;
      } else {
          const expression = [
              'step',
              ['zoom']
          ];
          for (const z of zoomStops) {
              const output = convertPropertyFunction(featureFunctionParameters[z], propertySpec, featureFunctionStops[z]);
              appendStopPair(expression, z, output, true);
          }
          fixupDegenerateStepCurve(expression);
          return expression;
      }
  }
  function coalesce$1(a, b) {
      if (a !== undefined)
          return a;
      if (b !== undefined)
          return b;
  }
  function getFallback(parameters, propertySpec) {
      const defaultValue = convertLiteral(coalesce$1(parameters.default, propertySpec.default));
      if (defaultValue === undefined && propertySpec.type === 'resolvedImage') {
          return '';
      }
      return defaultValue;
  }
  function convertPropertyFunction(parameters, propertySpec, stops) {
      const type = getFunctionType(parameters, propertySpec);
      const get = [
          'get',
          parameters.property
      ];
      if (type === 'categorical' && typeof stops[0][0] === 'boolean') {
          const expression = ['case'];
          for (const stop of stops) {
              expression.push([
                  '==',
                  get,
                  stop[0]
              ], stop[1]);
          }
          expression.push(getFallback(parameters, propertySpec));
          return expression;
      } else if (type === 'categorical') {
          const expression = [
              'match',
              get
          ];
          for (const stop of stops) {
              appendStopPair(expression, stop[0], stop[1], false);
          }
          expression.push(getFallback(parameters, propertySpec));
          return expression;
      } else if (type === 'interval') {
          const expression = [
              'step',
              [
                  'number',
                  get
              ]
          ];
          for (const stop of stops) {
              appendStopPair(expression, stop[0], stop[1], true);
          }
          fixupDegenerateStepCurve(expression);
          return parameters.default === undefined ? expression : [
              'case',
              [
                  '==',
                  [
                      'typeof',
                      get
                  ],
                  'number'
              ],
              expression,
              convertLiteral(parameters.default)
          ];
      } else if (type === 'exponential') {
          const base = parameters.base !== undefined ? parameters.base : 1;
          const expression = [
              getInterpolateOperator(parameters),
              base === 1 ? ['linear'] : [
                  'exponential',
                  base
              ],
              [
                  'number',
                  get
              ]
          ];
          for (const stop of stops) {
              appendStopPair(expression, stop[0], stop[1], false);
          }
          return parameters.default === undefined ? expression : [
              'case',
              [
                  '==',
                  [
                      'typeof',
                      get
                  ],
                  'number'
              ],
              expression,
              convertLiteral(parameters.default)
          ];
      } else {
          throw new Error(`Unknown property function type ${ type }`);
      }
  }
  function convertZoomFunction(parameters, propertySpec, stops, input = ['zoom']) {
      const type = getFunctionType(parameters, propertySpec);
      let expression;
      let isStep = false;
      if (type === 'interval') {
          expression = [
              'step',
              input
          ];
          isStep = true;
      } else if (type === 'exponential') {
          const base = parameters.base !== undefined ? parameters.base : 1;
          expression = [
              getInterpolateOperator(parameters),
              base === 1 ? ['linear'] : [
                  'exponential',
                  base
              ],
              input
          ];
      } else {
          throw new Error(`Unknown zoom function type "${ type }"`);
      }
      for (const stop of stops) {
          appendStopPair(expression, stop[0], stop[1], isStep);
      }
      fixupDegenerateStepCurve(expression);
      return expression;
  }
  function fixupDegenerateStepCurve(expression) {
      if (expression[0] === 'step' && expression.length === 3) {
          expression.push(0);
          expression.push(expression[3]);
      }
  }
  function appendStopPair(curve, input, output, isStep) {
      if (curve.length > 3 && input === curve[curve.length - 2]) {
          return;
      }
      if (!(isStep && curve.length === 2)) {
          curve.push(input);
      }
      curve.push(output);
  }
  function getFunctionType(parameters, propertySpec) {
      if (parameters.type) {
          return parameters.type;
      } else {
          return propertySpec.expression.interpolated ? 'exponential' : 'interval';
      }
  }
  function convertTokenString(s) {
      const result = ['concat'];
      const re = /{([^{}]+)}/g;
      let pos = 0;
      for (let match = re.exec(s); match !== null; match = re.exec(s)) {
          const literal = s.slice(pos, re.lastIndex - match[0].length);
          pos = re.lastIndex;
          if (literal.length > 0)
              result.push(literal);
          result.push([
              'get',
              match[1]
          ]);
      }
      if (result.length === 1) {
          return s;
      }
      if (pos < s.length) {
          result.push(s.slice(pos));
      } else if (result.length === 2) {
          return [
              'to-string',
              result[1]
          ];
      }
      return result;
  }

  function unbundle(value) {
      if (value instanceof Number || value instanceof String || value instanceof Boolean) {
          return value.valueOf();
      } else {
          return value;
      }
  }
  function deepUnbundle(value) {
      if (Array.isArray(value)) {
          return value.map(deepUnbundle);
      } else if (value instanceof Object && !(value instanceof Number || value instanceof String || value instanceof Boolean)) {
          const unbundledValue = {};
          for (const key in value) {
              unbundledValue[key] = deepUnbundle(value[key]);
          }
          return unbundledValue;
      }
      return unbundle(value);
  }

  function isExpressionFilter(filter) {
      if (filter === true || filter === false) {
          return true;
      }
      if (!Array.isArray(filter) || filter.length === 0) {
          return false;
      }
      switch (filter[0]) {
      case 'has':
          return filter.length >= 2 && filter[1] !== '$id' && filter[1] !== '$type';
      case 'in':
          return filter.length >= 3 && (typeof filter[1] !== 'string' || Array.isArray(filter[2]));
      case '!in':
      case '!has':
      case 'none':
          return false;
      case '==':
      case '!=':
      case '>':
      case '>=':
      case '<':
      case '<=':
          return filter.length !== 3 || (Array.isArray(filter[1]) || Array.isArray(filter[2]));
      case 'any':
      case 'all':
          for (const f of filter.slice(1)) {
              if (!isExpressionFilter(f) && typeof f !== 'boolean') {
                  return false;
              }
          }
          return true;
      default:
          return true;
      }
  }
  function createFilter(filter, layerType = 'fill') {
      if (filter === null || filter === undefined) {
          return {
              filter: () => true,
              needGeometry: false,
              needFeature: false
          };
      }
      if (!isExpressionFilter(filter)) {
          filter = convertFilter(filter);
      }
      const filterExp = filter;
      let staticFilter = true;
      try {
          staticFilter = extractStaticFilter(filterExp);
      } catch (e) {
          console.warn(`Failed to extract static filter. Filter will continue working, but at higher memory usage and slower framerate.
This is most likely a bug, please report this via https://github.com/mapbox/mapbox-gl-js/issues/new?assignees=&labels=&template=Bug_report.md
and paste the contents of this message in the report.
Thank you!
Filter Expression:
${ JSON.stringify(filterExp, null, 2) }
        `);
      }
      const filterSpec = v8[`filter_${ layerType }`];
      const compiledStaticFilter = createExpression(staticFilter, filterSpec);
      let filterFunc = null;
      if (compiledStaticFilter.result === 'error') {
          throw new Error(compiledStaticFilter.value.map(err => `${ err.key }: ${ err.message }`).join(', '));
      } else {
          filterFunc = (globalProperties, feature, canonical) => compiledStaticFilter.value.evaluate(globalProperties, feature, {}, canonical);
      }
      let dynamicFilterFunc = null;
      let needFeature = null;
      if (staticFilter !== filterExp) {
          const compiledDynamicFilter = createExpression(filterExp, filterSpec);
          if (compiledDynamicFilter.result === 'error') {
              throw new Error(compiledDynamicFilter.value.map(err => `${ err.key }: ${ err.message }`).join(', '));
          } else {
              dynamicFilterFunc = (globalProperties, feature, canonical, featureTileCoord, featureDistanceData) => compiledDynamicFilter.value.evaluate(globalProperties, feature, {}, canonical, undefined, undefined, featureTileCoord, featureDistanceData);
              needFeature = !isFeatureConstant(compiledDynamicFilter.value.expression);
          }
      }
      filterFunc = filterFunc;
      const needGeometry = geometryNeeded(staticFilter);
      return {
          filter: filterFunc,
          dynamicFilter: dynamicFilterFunc ? dynamicFilterFunc : undefined,
          needGeometry,
          needFeature: !!needFeature
      };
  }
  function extractStaticFilter(filter) {
      if (!isDynamicFilter(filter)) {
          return filter;
      }
      let result = deepUnbundle(filter);
      unionDynamicBranches(result);
      result = collapseDynamicBooleanExpressions(result);
      return result;
  }
  function collapseDynamicBooleanExpressions(expression) {
      if (!Array.isArray(expression)) {
          return expression;
      }
      const collapsed = collapsedExpression(expression);
      if (collapsed === true) {
          return collapsed;
      } else {
          return collapsed.map(subExpression => collapseDynamicBooleanExpressions(subExpression));
      }
  }
  function unionDynamicBranches(filter) {
      let isBranchingDynamically = false;
      const branches = [];
      if (filter[0] === 'case') {
          for (let i = 1; i < filter.length - 1; i += 2) {
              isBranchingDynamically = isBranchingDynamically || isDynamicFilter(filter[i]);
              branches.push(filter[i + 1]);
          }
          branches.push(filter[filter.length - 1]);
      } else if (filter[0] === 'match') {
          isBranchingDynamically = isBranchingDynamically || isDynamicFilter(filter[1]);
          for (let i = 2; i < filter.length - 1; i += 2) {
              branches.push(filter[i + 1]);
          }
          branches.push(filter[filter.length - 1]);
      } else if (filter[0] === 'step') {
          isBranchingDynamically = isBranchingDynamically || isDynamicFilter(filter[1]);
          for (let i = 1; i < filter.length - 1; i += 2) {
              branches.push(filter[i + 1]);
          }
      }
      if (isBranchingDynamically) {
          filter.length = 0;
          filter.push('any', ...branches);
      }
      for (let i = 1; i < filter.length; i++) {
          unionDynamicBranches(filter[i]);
      }
  }
  function isDynamicFilter(filter) {
      if (!Array.isArray(filter)) {
          return false;
      }
      if (isRootExpressionDynamic(filter[0])) {
          return true;
      }
      for (let i = 1; i < filter.length; i++) {
          const child = filter[i];
          if (isDynamicFilter(child)) {
              return true;
          }
      }
      return false;
  }
  function isRootExpressionDynamic(expression) {
      return expression === 'pitch' || expression === 'distance-from-center';
  }
  const dynamicConditionExpressions = new Set([
      'in',
      '==',
      '!=',
      '>',
      '>=',
      '<',
      '<=',
      'to-boolean'
  ]);
  function collapsedExpression(expression) {
      if (dynamicConditionExpressions.has(expression[0])) {
          for (let i = 1; i < expression.length; i++) {
              const param = expression[i];
              if (isDynamicFilter(param)) {
                  return true;
              }
          }
      }
      return expression;
  }
  function compare(a, b) {
      return a < b ? -1 : a > b ? 1 : 0;
  }
  function geometryNeeded(filter) {
      if (!Array.isArray(filter))
          return false;
      if (filter[0] === 'within')
          return true;
      for (let index = 1; index < filter.length; index++) {
          if (geometryNeeded(filter[index]))
              return true;
      }
      return false;
  }
  function convertFilter(filter) {
      if (!filter)
          return true;
      const op = filter[0];
      if (filter.length <= 1)
          return op !== 'any';
      const converted = op === '==' ? convertComparisonOp(filter[1], filter[2], '==') : op === '!=' ? convertNegation(convertComparisonOp(filter[1], filter[2], '==')) : op === '<' || op === '>' || op === '<=' || op === '>=' ? convertComparisonOp(filter[1], filter[2], op) : op === 'any' ? convertDisjunctionOp(filter.slice(1)) : op === 'all' ? ['all'].concat(filter.slice(1).map(convertFilter)) : op === 'none' ? ['all'].concat(filter.slice(1).map(convertFilter).map(convertNegation)) : op === 'in' ? convertInOp(filter[1], filter.slice(2)) : op === '!in' ? convertNegation(convertInOp(filter[1], filter.slice(2))) : op === 'has' ? convertHasOp(filter[1]) : op === '!has' ? convertNegation(convertHasOp(filter[1])) : op === 'within' ? filter : true;
      return converted;
  }
  function convertComparisonOp(property, value, op) {
      switch (property) {
      case '$type':
          return [
              `filter-type-${ op }`,
              value
          ];
      case '$id':
          return [
              `filter-id-${ op }`,
              value
          ];
      default:
          return [
              `filter-${ op }`,
              property,
              value
          ];
      }
  }
  function convertDisjunctionOp(filters) {
      return ['any'].concat(filters.map(convertFilter));
  }
  function convertInOp(property, values) {
      if (values.length === 0) {
          return false;
      }
      switch (property) {
      case '$type':
          return [
              `filter-type-in`,
              [
                  'literal',
                  values
              ]
          ];
      case '$id':
          return [
              `filter-id-in`,
              [
                  'literal',
                  values
              ]
          ];
      default:
          if (values.length > 200 && !values.some(v => typeof v !== typeof values[0])) {
              return [
                  'filter-in-large',
                  property,
                  [
                      'literal',
                      values.sort(compare)
                  ]
              ];
          } else {
              return [
                  'filter-in-small',
                  property,
                  [
                      'literal',
                      values
                  ]
              ];
          }
      }
  }
  function convertHasOp(property) {
      switch (property) {
      case '$type':
          return true;
      case '$id':
          return [`filter-has-id`];
      default:
          return [
              `filter-has`,
              property
          ];
      }
  }
  function convertNegation(filter) {
      return [
          '!',
          filter
      ];
  }

  function convertFilter$1(filter) {
      return _convertFilter(filter, {});
  }
  function _convertFilter(filter, expectedTypes) {
      if (isExpressionFilter(filter)) {
          return filter;
      }
      if (!filter)
          return true;
      const op = filter[0];
      if (filter.length <= 1)
          return op !== 'any';
      let converted;
      if (op === '==' || op === '!=' || op === '<' || op === '>' || op === '<=' || op === '>=') {
          const [, property, value] = filter;
          converted = convertComparisonOp$1(property, value, op, expectedTypes);
      } else if (op === 'any') {
          const children = filter.slice(1).map(f => {
              const types = {};
              const child = _convertFilter(f, types);
              const typechecks = runtimeTypeChecks(types);
              return typechecks === true ? child : [
                  'case',
                  typechecks,
                  child,
                  false
              ];
          });
          return ['any'].concat(children);
      } else if (op === 'all') {
          const children = filter.slice(1).map(f => _convertFilter(f, expectedTypes));
          return children.length > 1 ? ['all'].concat(children) : [].concat(...children);
      } else if (op === 'none') {
          return [
              '!',
              _convertFilter(['any'].concat(filter.slice(1)), {})
          ];
      } else if (op === 'in') {
          converted = convertInOp$1(filter[1], filter.slice(2));
      } else if (op === '!in') {
          converted = convertInOp$1(filter[1], filter.slice(2), true);
      } else if (op === 'has') {
          converted = convertHasOp$1(filter[1]);
      } else if (op === '!has') {
          converted = [
              '!',
              convertHasOp$1(filter[1])
          ];
      } else {
          converted = true;
      }
      return converted;
  }
  function runtimeTypeChecks(expectedTypes) {
      const conditions = [];
      for (const property in expectedTypes) {
          const get = property === '$id' ? ['id'] : [
              'get',
              property
          ];
          conditions.push([
              '==',
              [
                  'typeof',
                  get
              ],
              expectedTypes[property]
          ]);
      }
      if (conditions.length === 0)
          return true;
      if (conditions.length === 1)
          return conditions[0];
      return ['all'].concat(conditions);
  }
  function convertComparisonOp$1(property, value, op, expectedTypes) {
      let get;
      if (property === '$type') {
          return [
              op,
              ['geometry-type'],
              value
          ];
      } else if (property === '$id') {
          get = ['id'];
      } else {
          get = [
              'get',
              property
          ];
      }
      if (expectedTypes && value !== null) {
          const type = typeof value;
          expectedTypes[property] = type;
      }
      if (op === '==' && property !== '$id' && value === null) {
          return [
              'all',
              [
                  'has',
                  property
              ],
              [
                  '==',
                  get,
                  null
              ]
          ];
      } else if (op === '!=' && property !== '$id' && value === null) {
          return [
              'any',
              [
                  '!',
                  [
                      'has',
                      property
                  ]
              ],
              [
                  '!=',
                  get,
                  null
              ]
          ];
      }
      return [
          op,
          get,
          value
      ];
  }
  function convertInOp$1(property, values, negate = false) {
      if (values.length === 0)
          return negate;
      let get;
      if (property === '$type') {
          get = ['geometry-type'];
      } else if (property === '$id') {
          get = ['id'];
      } else {
          get = [
              'get',
              property
          ];
      }
      let uniformTypes = true;
      const type = typeof values[0];
      for (const value of values) {
          if (typeof value !== type) {
              uniformTypes = false;
              break;
          }
      }
      if (uniformTypes && (type === 'string' || type === 'number')) {
          const uniqueValues = values.sort().filter((v, i) => i === 0 || values[i - 1] !== v);
          return [
              'match',
              get,
              uniqueValues,
              !negate,
              negate
          ];
      }
      return [negate ? 'all' : 'any'].concat(values.map(v => [
          negate ? '!=' : '==',
          get,
          v
      ]));
  }
  function convertHasOp$1(property) {
      if (property === '$type') {
          return true;
      } else if (property === '$id') {
          return [
              '!=',
              ['id'],
              null
          ];
      } else {
          return [
              'has',
              property
          ];
      }
  }

  function migrateToExpressions (style) {
      const converted = [];
      eachLayer(style, layer => {
          if (layer.filter) {
              layer.filter = convertFilter$1(layer.filter);
          }
      });
      eachProperty(style, {
          paint: true,
          layout: true
      }, ({path, value, reference, set}) => {
          if (isExpression(value))
              return;
          if (typeof value === 'object' && !Array.isArray(value)) {
              set(convertFunction(value, reference));
              converted.push(path.join('.'));
          } else if (reference.tokens && typeof value === 'string') {
              set(convertTokenString(value));
          }
      });
      return style;
  }

  function migrate (style) {
      let migrated = false;
      if (style.version === 7) {
          style = migrateToV8(style);
          migrated = true;
      }
      if (style.version === 8) {
          migrated = migrateToExpressions(style);
          migrated = true;
      }
      if (!migrated) {
          throw new Error('cannot migrate from', style.version);
      }
      return style;
  }

  function composite (style) {
      const styleIDs = [];
      const sourceIDs = [];
      const compositedSourceLayers = [];
      for (const id in style.sources) {
          const source = style.sources[id];
          if (source.type !== 'vector')
              continue;
          const match = /^mapbox:\/\/(.*)/.exec(source.url);
          if (!match)
              continue;
          styleIDs.push(id);
          sourceIDs.push(match[1]);
      }
      if (styleIDs.length < 2)
          return style;
      styleIDs.forEach(id => {
          delete style.sources[id];
      });
      const compositeID = sourceIDs.join(',');
      style.sources[compositeID] = {
          'type': 'vector',
          'url': `mapbox://${ compositeID }`
      };
      style.layers.forEach(layer => {
          if (styleIDs.indexOf(layer.source) >= 0) {
              layer.source = compositeID;
              if ('source-layer' in layer) {
                  if (compositedSourceLayers.indexOf(layer['source-layer']) >= 0) {
                      throw new Error('Conflicting source layer names');
                  } else {
                      compositedSourceLayers.push(layer['source-layer']);
                  }
              }
          }
      });
      return style;
  }

  var refProperties = [
      'type',
      'source',
      'source-layer',
      'minzoom',
      'maxzoom',
      'filter',
      'layout'
  ];

  function deref(layer, parent) {
      const result = {};
      for (const k in layer) {
          if (k !== 'ref') {
              result[k] = layer[k];
          }
      }
      refProperties.forEach(k => {
          if (k in parent) {
              result[k] = parent[k];
          }
      });
      return result;
  }
  function derefLayers(layers) {
      layers = layers.slice();
      const map = Object.create(null);
      for (let i = 0; i < layers.length; i++) {
          map[layers[i].id] = layers[i];
      }
      for (let i = 0; i < layers.length; i++) {
          if ('ref' in layers[i]) {
              layers[i] = deref(layers[i], map[layers[i].ref]);
          }
      }
      return layers;
  }

  function deepEqual(a, b) {
      if (Array.isArray(a)) {
          if (!Array.isArray(b) || a.length !== b.length)
              return false;
          for (let i = 0; i < a.length; i++) {
              if (!deepEqual(a[i], b[i]))
                  return false;
          }
          return true;
      }
      if (typeof a === 'object' && a !== null && b !== null) {
          if (!(typeof b === 'object'))
              return false;
          const keys = Object.keys(a);
          if (keys.length !== Object.keys(b).length)
              return false;
          for (const key in a) {
              if (!deepEqual(a[key], b[key]))
                  return false;
          }
          return true;
      }
      return a === b;
  }

  const operations = {
      setStyle: 'setStyle',
      addLayer: 'addLayer',
      removeLayer: 'removeLayer',
      setPaintProperty: 'setPaintProperty',
      setLayoutProperty: 'setLayoutProperty',
      setFilter: 'setFilter',
      addSource: 'addSource',
      removeSource: 'removeSource',
      setGeoJSONSourceData: 'setGeoJSONSourceData',
      setLayerZoomRange: 'setLayerZoomRange',
      setLayerProperty: 'setLayerProperty',
      setCenter: 'setCenter',
      setZoom: 'setZoom',
      setBearing: 'setBearing',
      setPitch: 'setPitch',
      setSprite: 'setSprite',
      setGlyphs: 'setGlyphs',
      setTransition: 'setTransition',
      setLight: 'setLight',
      setTerrain: 'setTerrain',
      setFog: 'setFog',
      setProjection: 'setProjection'
  };
  function addSource(sourceId, after, commands) {
      commands.push({
          command: operations.addSource,
          args: [
              sourceId,
              after[sourceId]
          ]
      });
  }
  function removeSource(sourceId, commands, sourcesRemoved) {
      commands.push({
          command: operations.removeSource,
          args: [sourceId]
      });
      sourcesRemoved[sourceId] = true;
  }
  function updateSource(sourceId, after, commands, sourcesRemoved) {
      removeSource(sourceId, commands, sourcesRemoved);
      addSource(sourceId, after, commands);
  }
  function canUpdateGeoJSON(before, after, sourceId) {
      let prop;
      for (prop in before[sourceId]) {
          if (!before[sourceId].hasOwnProperty(prop))
              continue;
          if (prop !== 'data' && !deepEqual(before[sourceId][prop], after[sourceId][prop])) {
              return false;
          }
      }
      for (prop in after[sourceId]) {
          if (!after[sourceId].hasOwnProperty(prop))
              continue;
          if (prop !== 'data' && !deepEqual(before[sourceId][prop], after[sourceId][prop])) {
              return false;
          }
      }
      return true;
  }
  function diffSources(before, after, commands, sourcesRemoved) {
      before = before || {};
      after = after || {};
      let sourceId;
      for (sourceId in before) {
          if (!before.hasOwnProperty(sourceId))
              continue;
          if (!after.hasOwnProperty(sourceId)) {
              removeSource(sourceId, commands, sourcesRemoved);
          }
      }
      for (sourceId in after) {
          if (!after.hasOwnProperty(sourceId))
              continue;
          if (!before.hasOwnProperty(sourceId)) {
              addSource(sourceId, after, commands);
          } else if (!deepEqual(before[sourceId], after[sourceId])) {
              if (before[sourceId].type === 'geojson' && after[sourceId].type === 'geojson' && canUpdateGeoJSON(before, after, sourceId)) {
                  commands.push({
                      command: operations.setGeoJSONSourceData,
                      args: [
                          sourceId,
                          after[sourceId].data
                      ]
                  });
              } else {
                  updateSource(sourceId, after, commands, sourcesRemoved);
              }
          }
      }
  }
  function diffLayerPropertyChanges(before, after, commands, layerId, klass, command) {
      before = before || {};
      after = after || {};
      let prop;
      for (prop in before) {
          if (!before.hasOwnProperty(prop))
              continue;
          if (!deepEqual(before[prop], after[prop])) {
              commands.push({
                  command,
                  args: [
                      layerId,
                      prop,
                      after[prop],
                      klass
                  ]
              });
          }
      }
      for (prop in after) {
          if (!after.hasOwnProperty(prop) || before.hasOwnProperty(prop))
              continue;
          if (!deepEqual(before[prop], after[prop])) {
              commands.push({
                  command,
                  args: [
                      layerId,
                      prop,
                      after[prop],
                      klass
                  ]
              });
          }
      }
  }
  function pluckId(layer) {
      return layer.id;
  }
  function indexById(group, layer) {
      group[layer.id] = layer;
      return group;
  }
  function diffLayers(before, after, commands) {
      before = before || [];
      after = after || [];
      const beforeOrder = before.map(pluckId);
      const afterOrder = after.map(pluckId);
      const beforeIndex = before.reduce(indexById, {});
      const afterIndex = after.reduce(indexById, {});
      const tracker = beforeOrder.slice();
      const clean = Object.create(null);
      let i, d, layerId, beforeLayer, afterLayer, insertBeforeLayerId, prop;
      for (i = 0, d = 0; i < beforeOrder.length; i++) {
          layerId = beforeOrder[i];
          if (!afterIndex.hasOwnProperty(layerId)) {
              commands.push({
                  command: operations.removeLayer,
                  args: [layerId]
              });
              tracker.splice(tracker.indexOf(layerId, d), 1);
          } else {
              d++;
          }
      }
      for (i = 0, d = 0; i < afterOrder.length; i++) {
          layerId = afterOrder[afterOrder.length - 1 - i];
          if (tracker[tracker.length - 1 - i] === layerId)
              continue;
          if (beforeIndex.hasOwnProperty(layerId)) {
              commands.push({
                  command: operations.removeLayer,
                  args: [layerId]
              });
              tracker.splice(tracker.lastIndexOf(layerId, tracker.length - d), 1);
          } else {
              d++;
          }
          insertBeforeLayerId = tracker[tracker.length - i];
          commands.push({
              command: operations.addLayer,
              args: [
                  afterIndex[layerId],
                  insertBeforeLayerId
              ]
          });
          tracker.splice(tracker.length - i, 0, layerId);
          clean[layerId] = true;
      }
      for (i = 0; i < afterOrder.length; i++) {
          layerId = afterOrder[i];
          beforeLayer = beforeIndex[layerId];
          afterLayer = afterIndex[layerId];
          if (clean[layerId] || deepEqual(beforeLayer, afterLayer))
              continue;
          if (!deepEqual(beforeLayer.source, afterLayer.source) || !deepEqual(beforeLayer['source-layer'], afterLayer['source-layer']) || !deepEqual(beforeLayer.type, afterLayer.type)) {
              commands.push({
                  command: operations.removeLayer,
                  args: [layerId]
              });
              insertBeforeLayerId = tracker[tracker.lastIndexOf(layerId) + 1];
              commands.push({
                  command: operations.addLayer,
                  args: [
                      afterLayer,
                      insertBeforeLayerId
                  ]
              });
              continue;
          }
          diffLayerPropertyChanges(beforeLayer.layout, afterLayer.layout, commands, layerId, null, operations.setLayoutProperty);
          diffLayerPropertyChanges(beforeLayer.paint, afterLayer.paint, commands, layerId, null, operations.setPaintProperty);
          if (!deepEqual(beforeLayer.filter, afterLayer.filter)) {
              commands.push({
                  command: operations.setFilter,
                  args: [
                      layerId,
                      afterLayer.filter
                  ]
              });
          }
          if (!deepEqual(beforeLayer.minzoom, afterLayer.minzoom) || !deepEqual(beforeLayer.maxzoom, afterLayer.maxzoom)) {
              commands.push({
                  command: operations.setLayerZoomRange,
                  args: [
                      layerId,
                      afterLayer.minzoom,
                      afterLayer.maxzoom
                  ]
              });
          }
          for (prop in beforeLayer) {
              if (!beforeLayer.hasOwnProperty(prop))
                  continue;
              if (prop === 'layout' || prop === 'paint' || prop === 'filter' || prop === 'metadata' || prop === 'minzoom' || prop === 'maxzoom')
                  continue;
              if (prop.indexOf('paint.') === 0) {
                  diffLayerPropertyChanges(beforeLayer[prop], afterLayer[prop], commands, layerId, prop.slice(6), operations.setPaintProperty);
              } else if (!deepEqual(beforeLayer[prop], afterLayer[prop])) {
                  commands.push({
                      command: operations.setLayerProperty,
                      args: [
                          layerId,
                          prop,
                          afterLayer[prop]
                      ]
                  });
              }
          }
          for (prop in afterLayer) {
              if (!afterLayer.hasOwnProperty(prop) || beforeLayer.hasOwnProperty(prop))
                  continue;
              if (prop === 'layout' || prop === 'paint' || prop === 'filter' || prop === 'metadata' || prop === 'minzoom' || prop === 'maxzoom')
                  continue;
              if (prop.indexOf('paint.') === 0) {
                  diffLayerPropertyChanges(beforeLayer[prop], afterLayer[prop], commands, layerId, prop.slice(6), operations.setPaintProperty);
              } else if (!deepEqual(beforeLayer[prop], afterLayer[prop])) {
                  commands.push({
                      command: operations.setLayerProperty,
                      args: [
                          layerId,
                          prop,
                          afterLayer[prop]
                      ]
                  });
              }
          }
      }
  }
  function diffStyles(before, after) {
      if (!before)
          return [{
                  command: operations.setStyle,
                  args: [after]
              }];
      let commands = [];
      try {
          if (!deepEqual(before.version, after.version)) {
              return [{
                      command: operations.setStyle,
                      args: [after]
                  }];
          }
          if (!deepEqual(before.center, after.center)) {
              commands.push({
                  command: operations.setCenter,
                  args: [after.center]
              });
          }
          if (!deepEqual(before.zoom, after.zoom)) {
              commands.push({
                  command: operations.setZoom,
                  args: [after.zoom]
              });
          }
          if (!deepEqual(before.bearing, after.bearing)) {
              commands.push({
                  command: operations.setBearing,
                  args: [after.bearing]
              });
          }
          if (!deepEqual(before.pitch, after.pitch)) {
              commands.push({
                  command: operations.setPitch,
                  args: [after.pitch]
              });
          }
          if (!deepEqual(before.sprite, after.sprite)) {
              commands.push({
                  command: operations.setSprite,
                  args: [after.sprite]
              });
          }
          if (!deepEqual(before.glyphs, after.glyphs)) {
              commands.push({
                  command: operations.setGlyphs,
                  args: [after.glyphs]
              });
          }
          if (!deepEqual(before.transition, after.transition)) {
              commands.push({
                  command: operations.setTransition,
                  args: [after.transition]
              });
          }
          if (!deepEqual(before.light, after.light)) {
              commands.push({
                  command: operations.setLight,
                  args: [after.light]
              });
          }
          if (!deepEqual(before.fog, after.fog)) {
              commands.push({
                  command: operations.setFog,
                  args: [after.fog]
              });
          }
          if (!deepEqual(before.projection, after.projection)) {
              commands.push({
                  command: operations.setProjection,
                  args: [after.projection]
              });
          }
          const sourcesRemoved = {};
          const removeOrAddSourceCommands = [];
          diffSources(before.sources, after.sources, removeOrAddSourceCommands, sourcesRemoved);
          const beforeLayers = [];
          if (before.layers) {
              before.layers.forEach(layer => {
                  if (sourcesRemoved[layer.source]) {
                      commands.push({
                          command: operations.removeLayer,
                          args: [layer.id]
                      });
                  } else {
                      beforeLayers.push(layer);
                  }
              });
          }
          let beforeTerrain = before.terrain;
          if (beforeTerrain) {
              if (sourcesRemoved[beforeTerrain.source]) {
                  commands.push({
                      command: operations.setTerrain,
                      args: [undefined]
                  });
                  beforeTerrain = undefined;
              }
          }
          commands = commands.concat(removeOrAddSourceCommands);
          if (!deepEqual(beforeTerrain, after.terrain)) {
              commands.push({
                  command: operations.setTerrain,
                  args: [after.terrain]
              });
          }
          diffLayers(beforeLayers, after.layers, commands);
      } catch (e) {
          console.warn('Unable to compute style diff:', e);
          commands = [{
                  command: operations.setStyle,
                  args: [after]
              }];
      }
      return commands;
  }

  class ValidationError {
      constructor(key, value, message, identifier) {
          this.message = (key ? `${ key }: ` : '') + message;
          if (identifier)
              this.identifier = identifier;
          if (value !== null && value !== undefined && value.__line__) {
              this.line = value.__line__;
          }
      }
  }

  class ParsingError$1 {
      constructor(error) {
          this.error = error;
          this.message = error.message;
          const match = error.message.match(/line (\d+)/);
          this.line = match ? parseInt(match[1], 10) : 0;
      }
  }

  function validateConstants(options) {
      const key = options.key;
      const constants = options.value;
      if (constants) {
          return [new ValidationError(key, constants, 'constants have been deprecated as of v8')];
      } else {
          return [];
      }
  }

  function validateObject(options) {
      const key = options.key;
      const object = options.value;
      const elementSpecs = options.valueSpec || {};
      const elementValidators = options.objectElementValidators || {};
      const style = options.style;
      const styleSpec = options.styleSpec;
      let errors = [];
      const type = getType(object);
      if (type !== 'object') {
          return [new ValidationError(key, object, `object expected, ${ type } found`)];
      }
      for (const objectKey in object) {
          const elementSpecKey = objectKey.split('.')[0];
          const elementSpec = elementSpecs[elementSpecKey] || elementSpecs['*'];
          let validateElement;
          if (elementValidators[elementSpecKey]) {
              validateElement = elementValidators[elementSpecKey];
          } else if (elementSpecs[elementSpecKey]) {
              validateElement = validate;
          } else if (elementValidators['*']) {
              validateElement = elementValidators['*'];
          } else if (elementSpecs['*']) {
              validateElement = validate;
          } else {
              errors.push(new ValidationError(key, object[objectKey], `unknown property "${ objectKey }"`));
              continue;
          }
          errors = errors.concat(validateElement({
              key: (key ? `${ key }.` : key) + objectKey,
              value: object[objectKey],
              valueSpec: elementSpec,
              style,
              styleSpec,
              object,
              objectKey
          }, object));
      }
      for (const elementSpecKey in elementSpecs) {
          if (elementValidators[elementSpecKey]) {
              continue;
          }
          if (elementSpecs[elementSpecKey].required && elementSpecs[elementSpecKey]['default'] === undefined && object[elementSpecKey] === undefined) {
              errors.push(new ValidationError(key, object, `missing required property "${ elementSpecKey }"`));
          }
      }
      return errors;
  }

  function validateArray(options) {
      const array = options.value;
      const arraySpec = options.valueSpec;
      const style = options.style;
      const styleSpec = options.styleSpec;
      const key = options.key;
      const validateArrayElement = options.arrayElementValidator || validate;
      if (getType(array) !== 'array') {
          return [new ValidationError(key, array, `array expected, ${ getType(array) } found`)];
      }
      if (arraySpec.length && array.length !== arraySpec.length) {
          return [new ValidationError(key, array, `array length ${ arraySpec.length } expected, length ${ array.length } found`)];
      }
      if (arraySpec['min-length'] && array.length < arraySpec['min-length']) {
          return [new ValidationError(key, array, `array length at least ${ arraySpec['min-length'] } expected, length ${ array.length } found`)];
      }
      let arrayElementSpec = {
          'type': arraySpec.value,
          'values': arraySpec.values,
          'minimum': arraySpec.minimum,
          'maximum': arraySpec.maximum
      };
      if (styleSpec.$version < 7) {
          arrayElementSpec.function = arraySpec.function;
      }
      if (getType(arraySpec.value) === 'object') {
          arrayElementSpec = arraySpec.value;
      }
      let errors = [];
      for (let i = 0; i < array.length; i++) {
          errors = errors.concat(validateArrayElement({
              array,
              arrayIndex: i,
              value: array[i],
              valueSpec: arrayElementSpec,
              style,
              styleSpec,
              key: `${ key }[${ i }]`
          }));
      }
      return errors;
  }

  function validateNumber(options) {
      const key = options.key;
      const value = options.value;
      const valueSpec = options.valueSpec;
      let type = getType(value);
      if (type === 'number' && value !== value) {
          type = 'NaN';
      }
      if (type !== 'number') {
          return [new ValidationError(key, value, `number expected, ${ type } found`)];
      }
      if ('minimum' in valueSpec) {
          let specMin = valueSpec.minimum;
          if (getType(valueSpec.minimum) === 'array') {
              const i = options.arrayIndex;
              specMin = valueSpec.minimum[i];
          }
          if (value < specMin) {
              return [new ValidationError(key, value, `${ value } is less than the minimum value ${ specMin }`)];
          }
      }
      if ('maximum' in valueSpec) {
          let specMax = valueSpec.maximum;
          if (getType(valueSpec.maximum) === 'array') {
              const i = options.arrayIndex;
              specMax = valueSpec.maximum[i];
          }
          if (value > specMax) {
              return [new ValidationError(key, value, `${ value } is greater than the maximum value ${ specMax }`)];
          }
      }
      return [];
  }

  function validateFunction(options) {
      const functionValueSpec = options.valueSpec;
      const functionType = unbundle(options.value.type);
      let stopKeyType;
      let stopDomainValues = {};
      let previousStopDomainValue;
      let previousStopDomainZoom;
      const isZoomFunction = functionType !== 'categorical' && options.value.property === undefined;
      const isPropertyFunction = !isZoomFunction;
      const isZoomAndPropertyFunction = getType(options.value.stops) === 'array' && getType(options.value.stops[0]) === 'array' && getType(options.value.stops[0][0]) === 'object';
      const errors = validateObject({
          key: options.key,
          value: options.value,
          valueSpec: options.styleSpec.function,
          style: options.style,
          styleSpec: options.styleSpec,
          objectElementValidators: {
              stops: validateFunctionStops,
              default: validateFunctionDefault
          }
      });
      if (functionType === 'identity' && isZoomFunction) {
          errors.push(new ValidationError(options.key, options.value, 'missing required property "property"'));
      }
      if (functionType !== 'identity' && !options.value.stops) {
          errors.push(new ValidationError(options.key, options.value, 'missing required property "stops"'));
      }
      if (functionType === 'exponential' && options.valueSpec.expression && !supportsInterpolation(options.valueSpec)) {
          errors.push(new ValidationError(options.key, options.value, 'exponential functions not supported'));
      }
      if (options.styleSpec.$version >= 8) {
          if (isPropertyFunction && !supportsPropertyExpression(options.valueSpec)) {
              errors.push(new ValidationError(options.key, options.value, 'property functions not supported'));
          } else if (isZoomFunction && !supportsZoomExpression(options.valueSpec)) {
              errors.push(new ValidationError(options.key, options.value, 'zoom functions not supported'));
          }
      }
      if ((functionType === 'categorical' || isZoomAndPropertyFunction) && options.value.property === undefined) {
          errors.push(new ValidationError(options.key, options.value, '"property" property is required'));
      }
      return errors;
      function validateFunctionStops(options) {
          if (functionType === 'identity') {
              return [new ValidationError(options.key, options.value, 'identity function may not have a "stops" property')];
          }
          let errors = [];
          const value = options.value;
          errors = errors.concat(validateArray({
              key: options.key,
              value,
              valueSpec: options.valueSpec,
              style: options.style,
              styleSpec: options.styleSpec,
              arrayElementValidator: validateFunctionStop
          }));
          if (getType(value) === 'array' && value.length === 0) {
              errors.push(new ValidationError(options.key, value, 'array must have at least one stop'));
          }
          return errors;
      }
      function validateFunctionStop(options) {
          let errors = [];
          const value = options.value;
          const key = options.key;
          if (getType(value) !== 'array') {
              return [new ValidationError(key, value, `array expected, ${ getType(value) } found`)];
          }
          if (value.length !== 2) {
              return [new ValidationError(key, value, `array length 2 expected, length ${ value.length } found`)];
          }
          if (isZoomAndPropertyFunction) {
              if (getType(value[0]) !== 'object') {
                  return [new ValidationError(key, value, `object expected, ${ getType(value[0]) } found`)];
              }
              if (value[0].zoom === undefined) {
                  return [new ValidationError(key, value, 'object stop key must have zoom')];
              }
              if (value[0].value === undefined) {
                  return [new ValidationError(key, value, 'object stop key must have value')];
              }
              if (previousStopDomainZoom && previousStopDomainZoom > unbundle(value[0].zoom)) {
                  return [new ValidationError(key, value[0].zoom, 'stop zoom values must appear in ascending order')];
              }
              if (unbundle(value[0].zoom) !== previousStopDomainZoom) {
                  previousStopDomainZoom = unbundle(value[0].zoom);
                  previousStopDomainValue = undefined;
                  stopDomainValues = {};
              }
              errors = errors.concat(validateObject({
                  key: `${ key }[0]`,
                  value: value[0],
                  valueSpec: { zoom: {} },
                  style: options.style,
                  styleSpec: options.styleSpec,
                  objectElementValidators: {
                      zoom: validateNumber,
                      value: validateStopDomainValue
                  }
              }));
          } else {
              errors = errors.concat(validateStopDomainValue({
                  key: `${ key }[0]`,
                  value: value[0],
                  valueSpec: {},
                  style: options.style,
                  styleSpec: options.styleSpec
              }, value));
          }
          if (isExpression(deepUnbundle(value[1]))) {
              return errors.concat([new ValidationError(`${ key }[1]`, value[1], 'expressions are not allowed in function stops.')]);
          }
          return errors.concat(validate({
              key: `${ key }[1]`,
              value: value[1],
              valueSpec: functionValueSpec,
              style: options.style,
              styleSpec: options.styleSpec
          }));
      }
      function validateStopDomainValue(options, stop) {
          const type = getType(options.value);
          const value = unbundle(options.value);
          const reportValue = options.value !== null ? options.value : stop;
          if (!stopKeyType) {
              stopKeyType = type;
          } else if (type !== stopKeyType) {
              return [new ValidationError(options.key, reportValue, `${ type } stop domain type must match previous stop domain type ${ stopKeyType }`)];
          }
          if (type !== 'number' && type !== 'string' && type !== 'boolean') {
              return [new ValidationError(options.key, reportValue, 'stop domain value must be a number, string, or boolean')];
          }
          if (type !== 'number' && functionType !== 'categorical') {
              let message = `number expected, ${ type } found`;
              if (supportsPropertyExpression(functionValueSpec) && functionType === undefined) {
                  message += '\nIf you intended to use a categorical function, specify `"type": "categorical"`.';
              }
              return [new ValidationError(options.key, reportValue, message)];
          }
          if (functionType === 'categorical' && type === 'number' && (!isFinite(value) || Math.floor(value) !== value)) {
              return [new ValidationError(options.key, reportValue, `integer expected, found ${ value }`)];
          }
          if (functionType !== 'categorical' && type === 'number' && previousStopDomainValue !== undefined && value < previousStopDomainValue) {
              return [new ValidationError(options.key, reportValue, 'stop domain values must appear in ascending order')];
          } else {
              previousStopDomainValue = value;
          }
          if (functionType === 'categorical' && value in stopDomainValues) {
              return [new ValidationError(options.key, reportValue, 'stop domain values must be unique')];
          } else {
              stopDomainValues[value] = true;
          }
          return [];
      }
      function validateFunctionDefault(options) {
          return validate({
              key: options.key,
              value: options.value,
              valueSpec: functionValueSpec,
              style: options.style,
              styleSpec: options.styleSpec
          });
      }
  }

  function validateExpression(options) {
      const expression = (options.expressionContext === 'property' ? createPropertyExpression : createExpression)(deepUnbundle(options.value), options.valueSpec);
      if (expression.result === 'error') {
          return expression.value.map(error => {
              return new ValidationError(`${ options.key }${ error.key }`, options.value, error.message);
          });
      }
      const expressionObj = expression.value.expression || expression.value._styleExpression.expression;
      if (options.expressionContext === 'property' && options.propertyKey === 'text-font' && !expressionObj.outputDefined()) {
          return [new ValidationError(options.key, options.value, `Invalid data expression for "${ options.propertyKey }". Output values must be contained as literals within the expression.`)];
      }
      if (options.expressionContext === 'property' && options.propertyType === 'layout' && !isStateConstant(expressionObj)) {
          return [new ValidationError(options.key, options.value, '"feature-state" data expressions are not supported with layout properties.')];
      }
      if (options.expressionContext === 'filter') {
          return disallowedFilterParameters(expressionObj, options);
      }
      if (options.expressionContext && options.expressionContext.indexOf('cluster') === 0) {
          if (!isGlobalPropertyConstant(expressionObj, [
                  'zoom',
                  'feature-state'
              ])) {
              return [new ValidationError(options.key, options.value, '"zoom" and "feature-state" expressions are not supported with cluster properties.')];
          }
          if (options.expressionContext === 'cluster-initial' && !isFeatureConstant(expressionObj)) {
              return [new ValidationError(options.key, options.value, 'Feature data expressions are not supported with initial expression part of cluster properties.')];
          }
      }
      return [];
  }
  function disallowedFilterParameters(e, options) {
      const disallowedParameters = new Set([
          'zoom',
          'feature-state',
          'pitch',
          'distance-from-center'
      ]);
      for (const param of options.valueSpec.expression.parameters) {
          disallowedParameters.delete(param);
      }
      if (disallowedParameters.size === 0) {
          return [];
      }
      const errors = [];
      if (e instanceof CompoundExpression) {
          if (disallowedParameters.has(e.name)) {
              return [new ValidationError(options.key, options.value, `["${ e.name }"] expression is not supported in a filter for a ${ options.object.type } layer with id: ${ options.object.id }`)];
          }
      }
      e.eachChild(arg => {
          errors.push(...disallowedFilterParameters(arg, options));
      });
      return errors;
  }

  function validateBoolean(options) {
      const value = options.value;
      const key = options.key;
      const type = getType(value);
      if (type !== 'boolean') {
          return [new ValidationError(key, value, `boolean expected, ${ type } found`)];
      }
      return [];
  }

  function validateColor(options) {
      const key = options.key;
      const value = options.value;
      const type = getType(value);
      if (type !== 'string') {
          return [new ValidationError(key, value, `color expected, ${ type } found`)];
      }
      if (csscolorparser.parseCSSColor(value) === null) {
          return [new ValidationError(key, value, `color expected, "${ value }" found`)];
      }
      return [];
  }

  function validateEnum(options) {
      const key = options.key;
      const value = options.value;
      const valueSpec = options.valueSpec;
      const errors = [];
      if (Array.isArray(valueSpec.values)) {
          if (valueSpec.values.indexOf(unbundle(value)) === -1) {
              errors.push(new ValidationError(key, value, `expected one of [${ valueSpec.values.join(', ') }], ${ JSON.stringify(value) } found`));
          }
      } else {
          if (Object.keys(valueSpec.values).indexOf(unbundle(value)) === -1) {
              errors.push(new ValidationError(key, value, `expected one of [${ Object.keys(valueSpec.values).join(', ') }], ${ JSON.stringify(value) } found`));
          }
      }
      return errors;
  }

  function validateFilter(options) {
      if (isExpressionFilter(deepUnbundle(options.value))) {
          const layerType = deepUnbundle(options.layerType);
          return validateExpression(extend({}, options, {
              expressionContext: 'filter',
              valueSpec: options.styleSpec[`filter_${ layerType || 'fill' }`]
          }));
      } else {
          return validateNonExpressionFilter(options);
      }
  }
  function validateNonExpressionFilter(options) {
      const value = options.value;
      const key = options.key;
      if (getType(value) !== 'array') {
          return [new ValidationError(key, value, `array expected, ${ getType(value) } found`)];
      }
      const styleSpec = options.styleSpec;
      let type;
      let errors = [];
      if (value.length < 1) {
          return [new ValidationError(key, value, 'filter array must have at least 1 element')];
      }
      errors = errors.concat(validateEnum({
          key: `${ key }[0]`,
          value: value[0],
          valueSpec: styleSpec.filter_operator,
          style: options.style,
          styleSpec: options.styleSpec
      }));
      switch (unbundle(value[0])) {
      case '<':
      case '<=':
      case '>':
      case '>=':
          if (value.length >= 2 && unbundle(value[1]) === '$type') {
              errors.push(new ValidationError(key, value, `"$type" cannot be use with operator "${ value[0] }"`));
          }
      case '==':
      case '!=':
          if (value.length !== 3) {
              errors.push(new ValidationError(key, value, `filter array for operator "${ value[0] }" must have 3 elements`));
          }
      case 'in':
      case '!in':
          if (value.length >= 2) {
              type = getType(value[1]);
              if (type !== 'string') {
                  errors.push(new ValidationError(`${ key }[1]`, value[1], `string expected, ${ type } found`));
              }
          }
          for (let i = 2; i < value.length; i++) {
              type = getType(value[i]);
              if (unbundle(value[1]) === '$type') {
                  errors = errors.concat(validateEnum({
                      key: `${ key }[${ i }]`,
                      value: value[i],
                      valueSpec: styleSpec.geometry_type,
                      style: options.style,
                      styleSpec: options.styleSpec
                  }));
              } else if (type !== 'string' && type !== 'number' && type !== 'boolean') {
                  errors.push(new ValidationError(`${ key }[${ i }]`, value[i], `string, number, or boolean expected, ${ type } found`));
              }
          }
          break;
      case 'any':
      case 'all':
      case 'none':
          for (let i = 1; i < value.length; i++) {
              errors = errors.concat(validateNonExpressionFilter({
                  key: `${ key }[${ i }]`,
                  value: value[i],
                  style: options.style,
                  styleSpec: options.styleSpec
              }));
          }
          break;
      case 'has':
      case '!has':
          type = getType(value[1]);
          if (value.length !== 2) {
              errors.push(new ValidationError(key, value, `filter array for "${ value[0] }" operator must have 2 elements`));
          } else if (type !== 'string') {
              errors.push(new ValidationError(`${ key }[1]`, value[1], `string expected, ${ type } found`));
          }
          break;
      case 'within':
          type = getType(value[1]);
          if (value.length !== 2) {
              errors.push(new ValidationError(key, value, `filter array for "${ value[0] }" operator must have 2 elements`));
          } else if (type !== 'object') {
              errors.push(new ValidationError(`${ key }[1]`, value[1], `object expected, ${ type } found`));
          }
          break;
      }
      return errors;
  }

  function validateProperty(options, propertyType) {
      const key = options.key;
      const style = options.style;
      const styleSpec = options.styleSpec;
      const value = options.value;
      const propertyKey = options.objectKey;
      const layerSpec = styleSpec[`${ propertyType }_${ options.layerType }`];
      if (!layerSpec)
          return [];
      const transitionMatch = propertyKey.match(/^(.*)-transition$/);
      if (propertyType === 'paint' && transitionMatch && layerSpec[transitionMatch[1]] && layerSpec[transitionMatch[1]].transition) {
          return validate({
              key,
              value,
              valueSpec: styleSpec.transition,
              style,
              styleSpec
          });
      }
      const valueSpec = options.valueSpec || layerSpec[propertyKey];
      if (!valueSpec) {
          return [new ValidationError(key, value, `unknown property "${ propertyKey }"`)];
      }
      let tokenMatch;
      if (getType(value) === 'string' && supportsPropertyExpression(valueSpec) && !valueSpec.tokens && (tokenMatch = /^{([^}]+)}$/.exec(value))) {
          return [new ValidationError(key, value, `"${ propertyKey }" does not support interpolation syntax\n` + `Use an identity property function instead: \`{ "type": "identity", "property": ${ JSON.stringify(tokenMatch[1]) } }\`.`)];
      }
      const errors = [];
      if (options.layerType === 'symbol') {
          if (propertyKey === 'text-field' && style && !style.glyphs) {
              errors.push(new ValidationError(key, value, 'use of "text-field" requires a style "glyphs" property'));
          }
          if (propertyKey === 'text-font' && isFunction$1(deepUnbundle(value)) && unbundle(value.type) === 'identity') {
              errors.push(new ValidationError(key, value, '"text-font" does not support identity functions'));
          }
      }
      return errors.concat(validate({
          key: options.key,
          value,
          valueSpec,
          style,
          styleSpec,
          expressionContext: 'property',
          propertyType,
          propertyKey
      }));
  }

  function validatePaintProperty(options) {
      return validateProperty(options, 'paint');
  }

  function validateLayoutProperty(options) {
      return validateProperty(options, 'layout');
  }

  function validateLayer(options) {
      let errors = [];
      const layer = options.value;
      const key = options.key;
      const style = options.style;
      const styleSpec = options.styleSpec;
      if (!layer.type && !layer.ref) {
          errors.push(new ValidationError(key, layer, 'either "type" or "ref" is required'));
      }
      let type = unbundle(layer.type);
      const ref = unbundle(layer.ref);
      if (layer.id) {
          const layerId = unbundle(layer.id);
          for (let i = 0; i < options.arrayIndex; i++) {
              const otherLayer = style.layers[i];
              if (unbundle(otherLayer.id) === layerId) {
                  errors.push(new ValidationError(key, layer.id, `duplicate layer id "${ layer.id }", previously used at line ${ otherLayer.id.__line__ }`));
              }
          }
      }
      if ('ref' in layer) {
          [
              'type',
              'source',
              'source-layer',
              'filter',
              'layout'
          ].forEach(p => {
              if (p in layer) {
                  errors.push(new ValidationError(key, layer[p], `"${ p }" is prohibited for ref layers`));
              }
          });
          let parent;
          style.layers.forEach(layer => {
              if (unbundle(layer.id) === ref)
                  parent = layer;
          });
          if (!parent) {
              errors.push(new ValidationError(key, layer.ref, `ref layer "${ ref }" not found`));
          } else if (parent.ref) {
              errors.push(new ValidationError(key, layer.ref, 'ref cannot reference another ref layer'));
          } else {
              type = unbundle(parent.type);
          }
      } else if (!(type === 'background' || type === 'sky')) {
          if (!layer.source) {
              errors.push(new ValidationError(key, layer, 'missing required property "source"'));
          } else {
              const source = style.sources && style.sources[layer.source];
              const sourceType = source && unbundle(source.type);
              if (!source) {
                  errors.push(new ValidationError(key, layer.source, `source "${ layer.source }" not found`));
              } else if (sourceType === 'vector' && type === 'raster') {
                  errors.push(new ValidationError(key, layer.source, `layer "${ layer.id }" requires a raster source`));
              } else if (sourceType === 'raster' && type !== 'raster') {
                  errors.push(new ValidationError(key, layer.source, `layer "${ layer.id }" requires a vector source`));
              } else if (sourceType === 'vector' && !layer['source-layer']) {
                  errors.push(new ValidationError(key, layer, `layer "${ layer.id }" must specify a "source-layer"`));
              } else if (sourceType === 'raster-dem' && type !== 'hillshade') {
                  errors.push(new ValidationError(key, layer.source, 'raster-dem source can only be used with layer type \'hillshade\'.'));
              } else if (type === 'line' && layer.paint && layer.paint['line-gradient'] && (sourceType !== 'geojson' || !source.lineMetrics)) {
                  errors.push(new ValidationError(key, layer, `layer "${ layer.id }" specifies a line-gradient, which requires a GeoJSON source with \`lineMetrics\` enabled.`));
              }
          }
      }
      errors = errors.concat(validateObject({
          key,
          value: layer,
          valueSpec: styleSpec.layer,
          style: options.style,
          styleSpec: options.styleSpec,
          objectElementValidators: {
              '*'() {
                  return [];
              },
              type() {
                  return validate({
                      key: `${ key }.type`,
                      value: layer.type,
                      valueSpec: styleSpec.layer.type,
                      style: options.style,
                      styleSpec: options.styleSpec,
                      object: layer,
                      objectKey: 'type'
                  });
              },
              filter(options) {
                  return validateFilter(extend({ layerType: type }, options));
              },
              layout(options) {
                  return validateObject({
                      layer,
                      key: options.key,
                      value: options.value,
                      style: options.style,
                      styleSpec: options.styleSpec,
                      objectElementValidators: {
                          '*'(options) {
                              return validateLayoutProperty(extend({ layerType: type }, options));
                          }
                      }
                  });
              },
              paint(options) {
                  return validateObject({
                      layer,
                      key: options.key,
                      value: options.value,
                      style: options.style,
                      styleSpec: options.styleSpec,
                      objectElementValidators: {
                          '*'(options) {
                              return validatePaintProperty(extend({ layerType: type }, options));
                          }
                      }
                  });
              }
          }
      }));
      return errors;
  }

  function validateString(options) {
      const value = options.value;
      const key = options.key;
      const type = getType(value);
      if (type !== 'string') {
          return [new ValidationError(key, value, `string expected, ${ type } found`)];
      }
      return [];
  }

  const objectElementValidators = { promoteId: validatePromoteId };
  function validateSource(options) {
      const value = options.value;
      const key = options.key;
      const styleSpec = options.styleSpec;
      const style = options.style;
      if (!value.type) {
          return [new ValidationError(key, value, '"type" is required')];
      }
      const type = unbundle(value.type);
      let errors;
      switch (type) {
      case 'vector':
      case 'raster':
      case 'raster-dem':
          errors = validateObject({
              key,
              value,
              valueSpec: styleSpec[`source_${ type.replace('-', '_') }`],
              style: options.style,
              styleSpec,
              objectElementValidators
          });
          return errors;
      case 'geojson':
          errors = validateObject({
              key,
              value,
              valueSpec: styleSpec.source_geojson,
              style,
              styleSpec,
              objectElementValidators
          });
          if (value.cluster) {
              for (const prop in value.clusterProperties) {
                  const [operator, mapExpr] = value.clusterProperties[prop];
                  const reduceExpr = typeof operator === 'string' ? [
                      operator,
                      ['accumulated'],
                      [
                          'get',
                          prop
                      ]
                  ] : operator;
                  errors.push(...validateExpression({
                      key: `${ key }.${ prop }.map`,
                      value: mapExpr,
                      expressionContext: 'cluster-map'
                  }));
                  errors.push(...validateExpression({
                      key: `${ key }.${ prop }.reduce`,
                      value: reduceExpr,
                      expressionContext: 'cluster-reduce'
                  }));
              }
          }
          return errors;
      case 'video':
          return validateObject({
              key,
              value,
              valueSpec: styleSpec.source_video,
              style,
              styleSpec
          });
      case 'image':
          return validateObject({
              key,
              value,
              valueSpec: styleSpec.source_image,
              style,
              styleSpec
          });
      case 'canvas':
          return [new ValidationError(key, null, `Please use runtime APIs to add canvas sources, rather than including them in stylesheets.`, 'source.canvas')];
      default:
          return validateEnum({
              key: `${ key }.type`,
              value: value.type,
              valueSpec: {
                  values: [
                      'vector',
                      'raster',
                      'raster-dem',
                      'geojson',
                      'video',
                      'image'
                  ]
              },
              style,
              styleSpec
          });
      }
  }
  function validatePromoteId({key, value}) {
      if (getType(value) === 'string') {
          return validateString({
              key,
              value
          });
      } else {
          const errors = [];
          for (const prop in value) {
              errors.push(...validateString({
                  key: `${ key }.${ prop }`,
                  value: value[prop]
              }));
          }
          return errors;
      }
  }

  function validateLight(options) {
      const light = options.value;
      const styleSpec = options.styleSpec;
      const lightSpec = styleSpec.light;
      const style = options.style;
      let errors = [];
      const rootType = getType(light);
      if (light === undefined) {
          return errors;
      } else if (rootType !== 'object') {
          errors = errors.concat([new ValidationError('light', light, `object expected, ${ rootType } found`)]);
          return errors;
      }
      for (const key in light) {
          const transitionMatch = key.match(/^(.*)-transition$/);
          if (transitionMatch && lightSpec[transitionMatch[1]] && lightSpec[transitionMatch[1]].transition) {
              errors = errors.concat(validate({
                  key,
                  value: light[key],
                  valueSpec: styleSpec.transition,
                  style,
                  styleSpec
              }));
          } else if (lightSpec[key]) {
              errors = errors.concat(validate({
                  key,
                  value: light[key],
                  valueSpec: lightSpec[key],
                  style,
                  styleSpec
              }));
          } else {
              errors = errors.concat([new ValidationError(key, light[key], `unknown property "${ key }"`)]);
          }
      }
      return errors;
  }

  function validateTerrain(options) {
      const terrain = options.value;
      const key = options.key;
      const style = options.style;
      const styleSpec = options.styleSpec;
      const terrainSpec = styleSpec.terrain;
      let errors = [];
      const rootType = getType(terrain);
      if (terrain === undefined) {
          return errors;
      } else if (rootType !== 'object') {
          errors = errors.concat([new ValidationError('terrain', terrain, `object expected, ${ rootType } found`)]);
          return errors;
      }
      for (const key in terrain) {
          const transitionMatch = key.match(/^(.*)-transition$/);
          if (transitionMatch && terrainSpec[transitionMatch[1]] && terrainSpec[transitionMatch[1]].transition) {
              errors = errors.concat(validate({
                  key,
                  value: terrain[key],
                  valueSpec: styleSpec.transition,
                  style,
                  styleSpec
              }));
          } else if (terrainSpec[key]) {
              errors = errors.concat(validate({
                  key,
                  value: terrain[key],
                  valueSpec: terrainSpec[key],
                  style,
                  styleSpec
              }));
          } else {
              errors = errors.concat([new ValidationError(key, terrain[key], `unknown property "${ key }"`)]);
          }
      }
      if (!terrain.source) {
          errors.push(new ValidationError(key, terrain, `terrain is missing required property "source"`));
      } else {
          const source = style.sources && style.sources[terrain.source];
          const sourceType = source && unbundle(source.type);
          if (!source) {
              errors.push(new ValidationError(key, terrain.source, `source "${ terrain.source }" not found`));
          } else if (sourceType !== 'raster-dem') {
              errors.push(new ValidationError(key, terrain.source, `terrain cannot be used with a source of type ${ sourceType }, it only be used with a "raster-dem" source type`));
          }
      }
      return errors;
  }

  function validateFog(options) {
      const fog = options.value;
      const style = options.style;
      const styleSpec = options.styleSpec;
      const fogSpec = styleSpec.fog;
      let errors = [];
      const rootType = getType(fog);
      if (fog === undefined) {
          return errors;
      } else if (rootType !== 'object') {
          errors = errors.concat([new ValidationError('fog', fog, `object expected, ${ rootType } found`)]);
          return errors;
      }
      for (const key in fog) {
          const transitionMatch = key.match(/^(.*)-transition$/);
          if (transitionMatch && fogSpec[transitionMatch[1]] && fogSpec[transitionMatch[1]].transition) {
              errors = errors.concat(validate({
                  key,
                  value: fog[key],
                  valueSpec: styleSpec.transition,
                  style,
                  styleSpec
              }));
          } else if (fogSpec[key]) {
              errors = errors.concat(validate({
                  key,
                  value: fog[key],
                  valueSpec: fogSpec[key],
                  style,
                  styleSpec
              }));
          } else {
              errors = errors.concat([new ValidationError(key, fog[key], `unknown property "${ key }"`)]);
          }
      }
      return errors;
  }

  function validateFormatted(options) {
      if (validateString(options).length === 0) {
          return [];
      }
      return validateExpression(options);
  }

  function validateImage(options) {
      if (validateString(options).length === 0) {
          return [];
      }
      return validateExpression(options);
  }

  function validateProjection(options) {
      const projection = options.value;
      const styleSpec = options.styleSpec;
      const projectionSpec = styleSpec.projection;
      const style = options.style;
      let errors = [];
      const rootType = getType(projection);
      if (rootType === 'object') {
          for (const key in projection) {
              errors = errors.concat(validate({
                  key,
                  value: projection[key],
                  valueSpec: projectionSpec[key],
                  style,
                  styleSpec
              }));
          }
      } else if (rootType !== 'string') {
          errors = errors.concat([new ValidationError('projection', projection, `object or string expected, ${ rootType } found`)]);
      }
      return errors;
  }

  const VALIDATORS = {
      '*'() {
          return [];
      },
      'array': validateArray,
      'boolean': validateBoolean,
      'number': validateNumber,
      'color': validateColor,
      'constants': validateConstants,
      'enum': validateEnum,
      'filter': validateFilter,
      'function': validateFunction,
      'layer': validateLayer,
      'object': validateObject,
      'source': validateSource,
      'light': validateLight,
      'terrain': validateTerrain,
      'fog': validateFog,
      'string': validateString,
      'formatted': validateFormatted,
      'resolvedImage': validateImage,
      'projection': validateProjection
  };
  function validate(options) {
      const value = options.value;
      const valueSpec = options.valueSpec;
      const styleSpec = options.styleSpec;
      if (valueSpec.expression && isFunction$1(unbundle(value))) {
          return validateFunction(options);
      } else if (valueSpec.expression && isExpression(deepUnbundle(value))) {
          return validateExpression(options);
      } else if (valueSpec.type && VALIDATORS[valueSpec.type]) {
          return VALIDATORS[valueSpec.type](options);
      } else {
          const valid = validateObject(extend({}, options, { valueSpec: valueSpec.type ? styleSpec[valueSpec.type] : valueSpec }));
          return valid;
      }
  }

  function validateGlyphsURL (options) {
      const value = options.value;
      const key = options.key;
      const errors = validateString(options);
      if (errors.length)
          return errors;
      if (value.indexOf('{fontstack}') === -1) {
          errors.push(new ValidationError(key, value, '"glyphs" url must include a "{fontstack}" token'));
      }
      if (value.indexOf('{range}') === -1) {
          errors.push(new ValidationError(key, value, '"glyphs" url must include a "{range}" token'));
      }
      return errors;
  }

  function validateStyleMin(style, styleSpec = v8) {
      let errors = [];
      errors = errors.concat(validate({
          key: '',
          value: style,
          valueSpec: styleSpec.$root,
          styleSpec,
          style,
          objectElementValidators: {
              glyphs: validateGlyphsURL,
              '*'() {
                  return [];
              }
          }
      }));
      if (style.constants) {
          errors = errors.concat(validateConstants({
              key: 'constants',
              value: style.constants,
              style,
              styleSpec
          }));
      }
      return sortErrors(errors);
  }
  validateStyleMin.source = wrapCleanErrors(validateSource);
  validateStyleMin.light = wrapCleanErrors(validateLight);
  validateStyleMin.terrain = wrapCleanErrors(validateTerrain);
  validateStyleMin.fog = wrapCleanErrors(validateFog);
  validateStyleMin.layer = wrapCleanErrors(validateLayer);
  validateStyleMin.filter = wrapCleanErrors(validateFilter);
  validateStyleMin.paintProperty = wrapCleanErrors(validatePaintProperty);
  validateStyleMin.layoutProperty = wrapCleanErrors(validateLayoutProperty);
  function sortErrors(errors) {
      return [].concat(errors).sort((a, b) => {
          return a.line - b.line;
      });
  }
  function wrapCleanErrors(inner) {
      return function (...args) {
          return sortErrors(inner.apply(this, args));
      };
  }

  /* parser generated by jison 0.4.15 */

  var jsonlint = createCommonjsModule(function (module, exports) {
  /*
    Returns a Parser object of the following structure:

    Parser: {
      yy: {}
    }

    Parser.prototype: {
      yy: {},
      trace: function(),
      symbols_: {associative list: name ==> number},
      terminals_: {associative list: number ==> name},
      productions_: [...],
      performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate, $$, _$),
      table: [...],
      defaultActions: {...},
      parseError: function(str, hash),
      parse: function(input),

      lexer: {
          EOF: 1,
          parseError: function(str, hash),
          setInput: function(input),
          input: function(),
          unput: function(str),
          more: function(),
          less: function(n),
          pastInput: function(),
          upcomingInput: function(),
          showPosition: function(),
          test_match: function(regex_match_array, rule_index),
          next: function(),
          lex: function(),
          begin: function(condition),
          popState: function(),
          _currentRules: function(),
          topState: function(),
          pushState: function(condition),

          options: {
              ranges: boolean           (optional: true ==> token location info will include a .range[] member)
              flex: boolean             (optional: true ==> flex-like lexing behaviour where the rules are tested exhaustively to find the longest match)
              backtrack_lexer: boolean  (optional: true ==> lexer regexes are tested in order and for each matching regex the action code is invoked; the lexer terminates the scan when a token is returned by the action code)
          },

          performAction: function(yy, yy_, $avoiding_name_collisions, YY_START),
          rules: [...],
          conditions: {associative list: name ==> set},
      }
    }


    token location info (@$, _$, etc.): {
      first_line: n,
      last_line: n,
      first_column: n,
      last_column: n,
      range: [start_number, end_number]       (where the numbers are indexes into the input string, regular zero-based)
    }


    the parseError function receives a 'hash' object with these members for lexer and parser errors: {
      text:        (matched text)
      token:       (the produced terminal token, if any)
      line:        (yylineno)
    }
    while parser (grammar) errors will also provide these members, i.e. parser errors deliver a superset of attributes: {
      loc:         (yylloc)
      expected:    (string describing the set of expected tokens)
      recoverable: (boolean: TRUE when the parser has a error recovery rule available for this particular error)
    }
  */
  var parser = (function(){
  var o=function(k,v,o,l){for(o=o||{},l=k.length;l--;o[k[l]]=v);return o},$V0=[1,12],$V1=[1,13],$V2=[1,9],$V3=[1,10],$V4=[1,11],$V5=[1,14],$V6=[1,15],$V7=[14,18,22,24],$V8=[18,22],$V9=[22,24];
  var parser = {trace: function trace() { },
  yy: {},
  symbols_: {"error":2,"JSONString":3,"STRING":4,"JSONNumber":5,"NUMBER":6,"JSONNullLiteral":7,"NULL":8,"JSONBooleanLiteral":9,"TRUE":10,"FALSE":11,"JSONText":12,"JSONValue":13,"EOF":14,"JSONObject":15,"JSONArray":16,"{":17,"}":18,"JSONMemberList":19,"JSONMember":20,":":21,",":22,"[":23,"]":24,"JSONElementList":25,"$accept":0,"$end":1},
  terminals_: {2:"error",4:"STRING",6:"NUMBER",8:"NULL",10:"TRUE",11:"FALSE",14:"EOF",17:"{",18:"}",21:":",22:",",23:"[",24:"]"},
  productions_: [0,[3,1],[5,1],[7,1],[9,1],[9,1],[12,2],[13,1],[13,1],[13,1],[13,1],[13,1],[13,1],[15,2],[15,3],[20,3],[19,1],[19,3],[16,2],[16,3],[25,1],[25,3]],
  performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate /* action[1] */, $$ /* vstack */, _$ /* lstack */) {
  /* this == yyval */

  var $0 = $$.length - 1;
  switch (yystate) {
  case 1:
   // replace escaped characters with actual character
            this.$ = new String(yytext.replace(/\\(\\|")/g, "$"+"1")
                       .replace(/\\n/g,'\n')
                       .replace(/\\r/g,'\r')
                       .replace(/\\t/g,'\t')
                       .replace(/\\v/g,'\v')
                       .replace(/\\f/g,'\f')
                       .replace(/\\b/g,'\b'));
            this.$.__line__ =  this._$.first_line;
          
  break;
  case 2:

              this.$ = new Number(yytext);
              this.$.__line__ =  this._$.first_line;
          
  break;
  case 3:

              this.$ = null;
          
  break;
  case 4:

              this.$ = new Boolean(true);
              this.$.__line__ = this._$.first_line;
          
  break;
  case 5:

              this.$ = new Boolean(false);
              this.$.__line__ = this._$.first_line;
          
  break;
  case 6:
  return this.$ = $$[$0-1];
  case 13:
  this.$ = {}; Object.defineProperty(this.$, '__line__', {
              value: this._$.first_line,
              enumerable: false
          });
  break;
  case 14: case 19:
  this.$ = $$[$0-1]; Object.defineProperty(this.$, '__line__', {
              value: this._$.first_line,
              enumerable: false
          });
  break;
  case 15:
  this.$ = [$$[$0-2], $$[$0]];
  break;
  case 16:
  this.$ = {}; this.$[$$[$0][0]] = $$[$0][1];
  break;
  case 17:
  this.$ = $$[$0-2]; $$[$0-2][$$[$0][0]] = $$[$0][1];
  break;
  case 18:
  this.$ = []; Object.defineProperty(this.$, '__line__', {
              value: this._$.first_line,
              enumerable: false
          });
  break;
  case 20:
  this.$ = [$$[$0]];
  break;
  case 21:
  this.$ = $$[$0-2]; $$[$0-2].push($$[$0]);
  break;
  }
  },
  table: [{3:5,4:$V0,5:6,6:$V1,7:3,8:$V2,9:4,10:$V3,11:$V4,12:1,13:2,15:7,16:8,17:$V5,23:$V6},{1:[3]},{14:[1,16]},o($V7,[2,7]),o($V7,[2,8]),o($V7,[2,9]),o($V7,[2,10]),o($V7,[2,11]),o($V7,[2,12]),o($V7,[2,3]),o($V7,[2,4]),o($V7,[2,5]),o([14,18,21,22,24],[2,1]),o($V7,[2,2]),{3:20,4:$V0,18:[1,17],19:18,20:19},{3:5,4:$V0,5:6,6:$V1,7:3,8:$V2,9:4,10:$V3,11:$V4,13:23,15:7,16:8,17:$V5,23:$V6,24:[1,21],25:22},{1:[2,6]},o($V7,[2,13]),{18:[1,24],22:[1,25]},o($V8,[2,16]),{21:[1,26]},o($V7,[2,18]),{22:[1,28],24:[1,27]},o($V9,[2,20]),o($V7,[2,14]),{3:20,4:$V0,20:29},{3:5,4:$V0,5:6,6:$V1,7:3,8:$V2,9:4,10:$V3,11:$V4,13:30,15:7,16:8,17:$V5,23:$V6},o($V7,[2,19]),{3:5,4:$V0,5:6,6:$V1,7:3,8:$V2,9:4,10:$V3,11:$V4,13:31,15:7,16:8,17:$V5,23:$V6},o($V8,[2,17]),o($V8,[2,15]),o($V9,[2,21])],
  defaultActions: {16:[2,6]},
  parseError: function parseError(str, hash) {
      if (hash.recoverable) {
          this.trace(str);
      } else {
          throw new Error(str);
      }
  },
  parse: function parse(input) {
      var self = this, stack = [0], vstack = [null], lstack = [], table = this.table, yytext = '', yylineno = 0, yyleng = 0, TERROR = 2, EOF = 1;
      var args = lstack.slice.call(arguments, 1);
      var lexer = Object.create(this.lexer);
      var sharedState = { yy: {} };
      for (var k in this.yy) {
          if (Object.prototype.hasOwnProperty.call(this.yy, k)) {
              sharedState.yy[k] = this.yy[k];
          }
      }
      lexer.setInput(input, sharedState.yy);
      sharedState.yy.lexer = lexer;
      sharedState.yy.parser = this;
      if (typeof lexer.yylloc == 'undefined') {
          lexer.yylloc = {};
      }
      var yyloc = lexer.yylloc;
      lstack.push(yyloc);
      var ranges = lexer.options && lexer.options.ranges;
      if (typeof sharedState.yy.parseError === 'function') {
          this.parseError = sharedState.yy.parseError;
      } else {
          this.parseError = Object.getPrototypeOf(this).parseError;
      }
      
          function lex() {
              var token;
              token = lexer.lex() || EOF;
              if (typeof token !== 'number') {
                  token = self.symbols_[token] || token;
              }
              return token;
          }
      var symbol, state, action, r, yyval = {}, p, len, newState, expected;
      while (true) {
          state = stack[stack.length - 1];
          if (this.defaultActions[state]) {
              action = this.defaultActions[state];
          } else {
              if (symbol === null || typeof symbol == 'undefined') {
                  symbol = lex();
              }
              action = table[state] && table[state][symbol];
          }
                      if (typeof action === 'undefined' || !action.length || !action[0]) {
                  var errStr = '';
                  expected = [];
                  for (p in table[state]) {
                      if (this.terminals_[p] && p > TERROR) {
                          expected.push('\'' + this.terminals_[p] + '\'');
                      }
                  }
                  if (lexer.showPosition) {
                      errStr = 'Parse error on line ' + (yylineno + 1) + ':\n' + lexer.showPosition() + '\nExpecting ' + expected.join(', ') + ', got \'' + (this.terminals_[symbol] || symbol) + '\'';
                  } else {
                      errStr = 'Parse error on line ' + (yylineno + 1) + ': Unexpected ' + (symbol == EOF ? 'end of input' : '\'' + (this.terminals_[symbol] || symbol) + '\'');
                  }
                  this.parseError(errStr, {
                      text: lexer.match,
                      token: this.terminals_[symbol] || symbol,
                      line: lexer.yylineno,
                      loc: yyloc,
                      expected: expected
                  });
              }
          if (action[0] instanceof Array && action.length > 1) {
              throw new Error('Parse Error: multiple actions possible at state: ' + state + ', token: ' + symbol);
          }
          switch (action[0]) {
          case 1:
              stack.push(symbol);
              vstack.push(lexer.yytext);
              lstack.push(lexer.yylloc);
              stack.push(action[1]);
              symbol = null;
              {
                  yyleng = lexer.yyleng;
                  yytext = lexer.yytext;
                  yylineno = lexer.yylineno;
                  yyloc = lexer.yylloc;
              }
              break;
          case 2:
              len = this.productions_[action[1]][1];
              yyval.$ = vstack[vstack.length - len];
              yyval._$ = {
                  first_line: lstack[lstack.length - (len || 1)].first_line,
                  last_line: lstack[lstack.length - 1].last_line,
                  first_column: lstack[lstack.length - (len || 1)].first_column,
                  last_column: lstack[lstack.length - 1].last_column
              };
              if (ranges) {
                  yyval._$.range = [
                      lstack[lstack.length - (len || 1)].range[0],
                      lstack[lstack.length - 1].range[1]
                  ];
              }
              r = this.performAction.apply(yyval, [
                  yytext,
                  yyleng,
                  yylineno,
                  sharedState.yy,
                  action[1],
                  vstack,
                  lstack
              ].concat(args));
              if (typeof r !== 'undefined') {
                  return r;
              }
              if (len) {
                  stack = stack.slice(0, -1 * len * 2);
                  vstack = vstack.slice(0, -1 * len);
                  lstack = lstack.slice(0, -1 * len);
              }
              stack.push(this.productions_[action[1]][0]);
              vstack.push(yyval.$);
              lstack.push(yyval._$);
              newState = table[stack[stack.length - 2]][stack[stack.length - 1]];
              stack.push(newState);
              break;
          case 3:
              return true;
          }
      }
      return true;
  }};
  /* generated by jison-lex 0.3.4 */
  var lexer = (function(){
  var lexer = ({

  EOF:1,

  parseError:function parseError(str, hash) {
          if (this.yy.parser) {
              this.yy.parser.parseError(str, hash);
          } else {
              throw new Error(str);
          }
      },

  // resets the lexer, sets new input
  setInput:function (input, yy) {
          this.yy = yy || this.yy || {};
          this._input = input;
          this._more = this._backtrack = this.done = false;
          this.yylineno = this.yyleng = 0;
          this.yytext = this.matched = this.match = '';
          this.conditionStack = ['INITIAL'];
          this.yylloc = {
              first_line: 1,
              first_column: 0,
              last_line: 1,
              last_column: 0
          };
          if (this.options.ranges) {
              this.yylloc.range = [0,0];
          }
          this.offset = 0;
          return this;
      },

  // consumes and returns one char from the input
  input:function () {
          var ch = this._input[0];
          this.yytext += ch;
          this.yyleng++;
          this.offset++;
          this.match += ch;
          this.matched += ch;
          var lines = ch.match(/(?:\r\n?|\n).*/g);
          if (lines) {
              this.yylineno++;
              this.yylloc.last_line++;
          } else {
              this.yylloc.last_column++;
          }
          if (this.options.ranges) {
              this.yylloc.range[1]++;
          }

          this._input = this._input.slice(1);
          return ch;
      },

  // unshifts one char (or a string) into the input
  unput:function (ch) {
          var len = ch.length;
          var lines = ch.split(/(?:\r\n?|\n)/g);

          this._input = ch + this._input;
          this.yytext = this.yytext.substr(0, this.yytext.length - len);
          //this.yyleng -= len;
          this.offset -= len;
          var oldLines = this.match.split(/(?:\r\n?|\n)/g);
          this.match = this.match.substr(0, this.match.length - 1);
          this.matched = this.matched.substr(0, this.matched.length - 1);

          if (lines.length - 1) {
              this.yylineno -= lines.length - 1;
          }
          var r = this.yylloc.range;

          this.yylloc = {
              first_line: this.yylloc.first_line,
              last_line: this.yylineno + 1,
              first_column: this.yylloc.first_column,
              last_column: lines ?
                  (lines.length === oldLines.length ? this.yylloc.first_column : 0)
                   + oldLines[oldLines.length - lines.length].length - lines[0].length :
                this.yylloc.first_column - len
          };

          if (this.options.ranges) {
              this.yylloc.range = [r[0], r[0] + this.yyleng - len];
          }
          this.yyleng = this.yytext.length;
          return this;
      },

  // When called from action, caches matched text and appends it on next action
  more:function () {
          this._more = true;
          return this;
      },

  // When called from action, signals the lexer that this rule fails to match the input, so the next matching rule (regex) should be tested instead.
  reject:function () {
          if (this.options.backtrack_lexer) {
              this._backtrack = true;
          } else {
              return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n' + this.showPosition(), {
                  text: "",
                  token: null,
                  line: this.yylineno
              });

          }
          return this;
      },

  // retain first n characters of the match
  less:function (n) {
          this.unput(this.match.slice(n));
      },

  // displays already matched input, i.e. for error messages
  pastInput:function () {
          var past = this.matched.substr(0, this.matched.length - this.match.length);
          return (past.length > 20 ? '...':'') + past.substr(-20).replace(/\n/g, "");
      },

  // displays upcoming input, i.e. for error messages
  upcomingInput:function () {
          var next = this.match;
          if (next.length < 20) {
              next += this._input.substr(0, 20-next.length);
          }
          return (next.substr(0,20) + (next.length > 20 ? '...' : '')).replace(/\n/g, "");
      },

  // displays the character position where the lexing error occurred, i.e. for error messages
  showPosition:function () {
          var pre = this.pastInput();
          var c = new Array(pre.length + 1).join("-");
          return pre + this.upcomingInput() + "\n" + c + "^";
      },

  // test the lexed token: return FALSE when not a match, otherwise return token
  test_match:function (match, indexed_rule) {
          var token,
              lines,
              backup;

          if (this.options.backtrack_lexer) {
              // save context
              backup = {
                  yylineno: this.yylineno,
                  yylloc: {
                      first_line: this.yylloc.first_line,
                      last_line: this.last_line,
                      first_column: this.yylloc.first_column,
                      last_column: this.yylloc.last_column
                  },
                  yytext: this.yytext,
                  match: this.match,
                  matches: this.matches,
                  matched: this.matched,
                  yyleng: this.yyleng,
                  offset: this.offset,
                  _more: this._more,
                  _input: this._input,
                  yy: this.yy,
                  conditionStack: this.conditionStack.slice(0),
                  done: this.done
              };
              if (this.options.ranges) {
                  backup.yylloc.range = this.yylloc.range.slice(0);
              }
          }

          lines = match[0].match(/(?:\r\n?|\n).*/g);
          if (lines) {
              this.yylineno += lines.length;
          }
          this.yylloc = {
              first_line: this.yylloc.last_line,
              last_line: this.yylineno + 1,
              first_column: this.yylloc.last_column,
              last_column: lines ?
                           lines[lines.length - 1].length - lines[lines.length - 1].match(/\r?\n?/)[0].length :
                           this.yylloc.last_column + match[0].length
          };
          this.yytext += match[0];
          this.match += match[0];
          this.matches = match;
          this.yyleng = this.yytext.length;
          if (this.options.ranges) {
              this.yylloc.range = [this.offset, this.offset += this.yyleng];
          }
          this._more = false;
          this._backtrack = false;
          this._input = this._input.slice(match[0].length);
          this.matched += match[0];
          token = this.performAction.call(this, this.yy, this, indexed_rule, this.conditionStack[this.conditionStack.length - 1]);
          if (this.done && this._input) {
              this.done = false;
          }
          if (token) {
              return token;
          } else if (this._backtrack) {
              // recover context
              for (var k in backup) {
                  this[k] = backup[k];
              }
              return false; // rule action called reject() implying the next rule should be tested instead.
          }
          return false;
      },

  // return next match in input
  next:function () {
          if (this.done) {
              return this.EOF;
          }
          if (!this._input) {
              this.done = true;
          }

          var token,
              match,
              tempMatch,
              index;
          if (!this._more) {
              this.yytext = '';
              this.match = '';
          }
          var rules = this._currentRules();
          for (var i = 0; i < rules.length; i++) {
              tempMatch = this._input.match(this.rules[rules[i]]);
              if (tempMatch && (!match || tempMatch[0].length > match[0].length)) {
                  match = tempMatch;
                  index = i;
                  if (this.options.backtrack_lexer) {
                      token = this.test_match(tempMatch, rules[i]);
                      if (token !== false) {
                          return token;
                      } else if (this._backtrack) {
                          match = false;
                          continue; // rule action called reject() implying a rule MISmatch.
                      } else {
                          // else: this is a lexer rule which consumes input without producing a token (e.g. whitespace)
                          return false;
                      }
                  } else if (!this.options.flex) {
                      break;
                  }
              }
          }
          if (match) {
              token = this.test_match(match, rules[index]);
              if (token !== false) {
                  return token;
              }
              // else: this is a lexer rule which consumes input without producing a token (e.g. whitespace)
              return false;
          }
          if (this._input === "") {
              return this.EOF;
          } else {
              return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. Unrecognized text.\n' + this.showPosition(), {
                  text: "",
                  token: null,
                  line: this.yylineno
              });
          }
      },

  // return next match that has a token
  lex:function lex() {
          var r = this.next();
          if (r) {
              return r;
          } else {
              return this.lex();
          }
      },

  // activates a new lexer condition state (pushes the new lexer condition state onto the condition stack)
  begin:function begin(condition) {
          this.conditionStack.push(condition);
      },

  // pop the previously active lexer condition state off the condition stack
  popState:function popState() {
          var n = this.conditionStack.length - 1;
          if (n > 0) {
              return this.conditionStack.pop();
          } else {
              return this.conditionStack[0];
          }
      },

  // produce the lexer rule set which is active for the currently active lexer condition state
  _currentRules:function _currentRules() {
          if (this.conditionStack.length && this.conditionStack[this.conditionStack.length - 1]) {
              return this.conditions[this.conditionStack[this.conditionStack.length - 1]].rules;
          } else {
              return this.conditions["INITIAL"].rules;
          }
      },

  // return the currently active lexer condition state; when an index argument is provided it produces the N-th previous condition state, if available
  topState:function topState(n) {
          n = this.conditionStack.length - 1 - Math.abs(n || 0);
          if (n >= 0) {
              return this.conditionStack[n];
          } else {
              return "INITIAL";
          }
      },

  // alias for begin(condition)
  pushState:function pushState(condition) {
          this.begin(condition);
      },

  // return the number of states currently on the stack
  stateStackSize:function stateStackSize() {
          return this.conditionStack.length;
      },
  options: {},
  performAction: function anonymous(yy,yy_,$avoiding_name_collisions,YY_START) {
  switch($avoiding_name_collisions) {
  case 0:/* skip whitespace */
  break;
  case 1:return 6
  case 2:yy_.yytext = yy_.yytext.substr(1,yy_.yyleng-2); return 4
  case 3:return 17
  case 4:return 18
  case 5:return 23
  case 6:return 24
  case 7:return 22
  case 8:return 21
  case 9:return 10
  case 10:return 11
  case 11:return 8
  case 12:return 14
  case 13:return 'INVALID'
  }
  },
  rules: [/^(?:\s+)/,/^(?:(-?([0-9]|[1-9][0-9]+))(\.[0-9]+)?([eE][-+]?[0-9]+)?\b)/,/^(?:"(?:\\[\\"bfnrt/]|\\u[a-fA-F0-9]{4}|[^\\\0-\x09\x0a-\x1f"])*")/,/^(?:\{)/,/^(?:\})/,/^(?:\[)/,/^(?:\])/,/^(?:,)/,/^(?::)/,/^(?:true\b)/,/^(?:false\b)/,/^(?:null\b)/,/^(?:$)/,/^(?:.)/],
  conditions: {"INITIAL":{"rules":[0,1,2,3,4,5,6,7,8,9,10,11,12,13],"inclusive":true}}
  });
  return lexer;
  })();
  parser.lexer = lexer;
  function Parser () {
    this.yy = {};
  }
  Parser.prototype = parser;parser.Parser = Parser;
  return new Parser;
  })();


  if (typeof commonjsRequire !== 'undefined' && 'object' !== 'undefined') {
  exports.parser = parser;
  exports.Parser = parser.Parser;
  exports.parse = function () { return parser.parse.apply(parser, arguments); };
  }
  });

  function readStyle(style) {
      if (style instanceof String || typeof style === 'string' || style instanceof Buffer) {
          try {
              return jsonlint.parse(style.toString());
          } catch (e) {
              throw new ParsingError$1(e);
          }
      }
      return style;
  }

  function validateStyle(style, styleSpec = v8) {
      let s = style;
      try {
          s = readStyle(s);
      } catch (e) {
          return [e];
      }
      return validateStyleMin(s, styleSpec);
  }

  const SUPPORTED_SPEC_VERSION = 8;
  const MAX_SOURCES_IN_STYLE = 15;
  function isValid(value, regex) {
      if (!value || getType(value) !== 'string')
          return true;
      return !!value.match(regex);
  }
  function getSourceCount(source) {
      if (source.url) {
          return source.url.split(',').length;
      } else {
          return 0;
      }
  }
  function getAllowedKeyErrors(obj, keys, path) {
      const allowed = new Set(keys);
      const errors = [];
      Object.keys(obj).forEach(k => {
          if (!allowed.has(k)) {
              const prop = path ? `${ path }.${ k }` : null;
              errors.push(new ValidationError(prop, obj[k], `Unsupported property "${ k }"`));
          }
      });
      return errors;
  }
  const acceptedSourceTypes = new Set([
      'vector',
      'raster',
      'raster-dem'
  ]);
  function getSourceErrors(source, i) {
      const errors = [];
      const sourceKeys = [
          'type',
          'url',
          'tileSize'
      ];
      errors.push(...getAllowedKeyErrors(source, sourceKeys, 'source'));
      if (!acceptedSourceTypes.has(String(source.type))) {
          errors.push(new ValidationError(`sources[${ i }].type`, source.type, `Expected one of [${ Array.from(acceptedSourceTypes).join(', ') }]`));
      }
      const sourceUrlPattern = /^mapbox:\/\/([^/]*)$/;
      if (!source.url || !isValid(source.url, sourceUrlPattern)) {
          errors.push(new ValidationError(`sources[${ i }].url`, source.url, 'Expected a valid Mapbox tileset url'));
      }
      return errors;
  }
  function getSourcesErrors(sources) {
      const errors = [];
      let count = 0;
      Object.keys(sources).forEach((s, i) => {
          const sourceErrors = getSourceErrors(sources[s], i);
          if (!sourceErrors.length) {
              count = count + getSourceCount(sources[s]);
          }
          errors.push(...sourceErrors);
      });
      if (count > MAX_SOURCES_IN_STYLE) {
          errors.push(new ValidationError('sources', null, `Styles must contain ${ MAX_SOURCES_IN_STYLE } or fewer sources`));
      }
      return errors;
  }
  function getRootErrors(style, specKeys) {
      const errors = [];
      const optionalRootProperties = [
          'owner',
          'id',
          'cacheControl',
          'draft',
          'created',
          'modified',
          'visibility',
          'protected'
      ];
      const allowedKeyErrors = getAllowedKeyErrors(style, [
          ...specKeys,
          ...optionalRootProperties
      ]);
      errors.push(...allowedKeyErrors);
      if (style.version > SUPPORTED_SPEC_VERSION || style.version < SUPPORTED_SPEC_VERSION) {
          errors.push(new ValidationError('version', style.version, `Style version must be ${ SUPPORTED_SPEC_VERSION }`));
      }
      const glyphUrlPattern = /^mapbox:\/\/fonts\/([^/]*)\/{fontstack}\/{range}.pbf$/;
      if (!isValid(style.glyphs, glyphUrlPattern)) {
          errors.push(new ValidationError('glyphs', style.glyphs, 'Styles must reference glyphs hosted by Mapbox'));
      }
      const spriteUrlPattern = /^mapbox:\/\/sprites\/([^/]*)\/([^/]*)\/?([^/]*)?$/;
      if (!isValid(style.sprite, spriteUrlPattern)) {
          errors.push(new ValidationError('sprite', style.sprite, 'Styles must reference sprites hosted by Mapbox'));
      }
      const visibilityPattern = /^(public|private)$/;
      if (!isValid(style.visibility, visibilityPattern)) {
          errors.push(new ValidationError('visibility', style.visibility, 'Style visibility must be public or private'));
      }
      if (style.protected !== undefined && getType(style.protected) !== 'boolean') {
          errors.push(new ValidationError('protected', style.protected, 'Style protection must be true or false'));
      }
      return errors;
  }
  function validateMapboxApiSupported(style) {
      let s = style;
      try {
          s = readStyle(s);
      } catch (e) {
          return [e];
      }
      let errors = validateStyleMin(s, v8).concat(getRootErrors(s, Object.keys(v8.$root)));
      if (s.sources) {
          errors = errors.concat(getSourcesErrors(s.sources));
      }
      return errors;
  }

  const expression$1 = {
      StyleExpression,
      isExpression,
      isExpressionFilter,
      createExpression,
      createPropertyExpression,
      normalizePropertyExpression,
      ZoomConstantExpression,
      ZoomDependentExpression,
      StylePropertyFunction
  };
  const styleFunction = {
      convertFunction,
      createFunction,
      isFunction: isFunction$1
  };
  const visit = {
      eachSource,
      eachLayer,
      eachProperty
  };
  validateStyle.parsed = validateStyle;
  validateStyle.latest = validateStyle;

  exports.Color = Color;
  exports.ParsingError = ParsingError$1;
  exports.ValidationError = ValidationError;
  exports.composite = composite;
  exports.convertFilter = convertFilter$1;
  exports.derefLayers = derefLayers;
  exports.diff = diffStyles;
  exports.expression = expression$1;
  exports.featureFilter = createFilter;
  exports.format = format;
  exports.function = styleFunction;
  exports.latest = v8;
  exports.migrate = migrate;
  exports.v8 = v8;
  exports.validate = validateStyle;
  exports.validateMapboxApiSupported = validateMapboxApiSupported;
  exports.visit = visit;

  Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=index.cjs.map


/***/ }),

/***/ "./node_modules/three/build/three.cjs":
/*!********************************************!*\
  !*** ./node_modules/three/build/three.cjs ***!
  \********************************************/
/***/ ((__unused_webpack_module, exports) => {

"use strict";
/**
 * @license
 * Copyright 2010-2022 Three.js Authors
 * SPDX-License-Identifier: MIT
 */


Object.defineProperty(exports, "__esModule", ({ value: true }));

const REVISION = '137';
const MOUSE = {
	LEFT: 0,
	MIDDLE: 1,
	RIGHT: 2,
	ROTATE: 0,
	DOLLY: 1,
	PAN: 2
};
const TOUCH = {
	ROTATE: 0,
	PAN: 1,
	DOLLY_PAN: 2,
	DOLLY_ROTATE: 3
};
const CullFaceNone = 0;
const CullFaceBack = 1;
const CullFaceFront = 2;
const CullFaceFrontBack = 3;
const BasicShadowMap = 0;
const PCFShadowMap = 1;
const PCFSoftShadowMap = 2;
const VSMShadowMap = 3;
const FrontSide = 0;
const BackSide = 1;
const DoubleSide = 2;
const FlatShading = 1;
const SmoothShading = 2;
const NoBlending = 0;
const NormalBlending = 1;
const AdditiveBlending = 2;
const SubtractiveBlending = 3;
const MultiplyBlending = 4;
const CustomBlending = 5;
const AddEquation = 100;
const SubtractEquation = 101;
const ReverseSubtractEquation = 102;
const MinEquation = 103;
const MaxEquation = 104;
const ZeroFactor = 200;
const OneFactor = 201;
const SrcColorFactor = 202;
const OneMinusSrcColorFactor = 203;
const SrcAlphaFactor = 204;
const OneMinusSrcAlphaFactor = 205;
const DstAlphaFactor = 206;
const OneMinusDstAlphaFactor = 207;
const DstColorFactor = 208;
const OneMinusDstColorFactor = 209;
const SrcAlphaSaturateFactor = 210;
const NeverDepth = 0;
const AlwaysDepth = 1;
const LessDepth = 2;
const LessEqualDepth = 3;
const EqualDepth = 4;
const GreaterEqualDepth = 5;
const GreaterDepth = 6;
const NotEqualDepth = 7;
const MultiplyOperation = 0;
const MixOperation = 1;
const AddOperation = 2;
const NoToneMapping = 0;
const LinearToneMapping = 1;
const ReinhardToneMapping = 2;
const CineonToneMapping = 3;
const ACESFilmicToneMapping = 4;
const CustomToneMapping = 5;
const UVMapping = 300;
const CubeReflectionMapping = 301;
const CubeRefractionMapping = 302;
const EquirectangularReflectionMapping = 303;
const EquirectangularRefractionMapping = 304;
const CubeUVReflectionMapping = 306;
const CubeUVRefractionMapping = 307;
const RepeatWrapping = 1000;
const ClampToEdgeWrapping = 1001;
const MirroredRepeatWrapping = 1002;
const NearestFilter = 1003;
const NearestMipmapNearestFilter = 1004;
const NearestMipMapNearestFilter = 1004;
const NearestMipmapLinearFilter = 1005;
const NearestMipMapLinearFilter = 1005;
const LinearFilter = 1006;
const LinearMipmapNearestFilter = 1007;
const LinearMipMapNearestFilter = 1007;
const LinearMipmapLinearFilter = 1008;
const LinearMipMapLinearFilter = 1008;
const UnsignedByteType = 1009;
const ByteType = 1010;
const ShortType = 1011;
const UnsignedShortType = 1012;
const IntType = 1013;
const UnsignedIntType = 1014;
const FloatType = 1015;
const HalfFloatType = 1016;
const UnsignedShort4444Type = 1017;
const UnsignedShort5551Type = 1018;
const UnsignedInt248Type = 1020;
const AlphaFormat = 1021;
const RGBFormat = 1022;
const RGBAFormat = 1023;
const LuminanceFormat = 1024;
const LuminanceAlphaFormat = 1025;
const DepthFormat = 1026;
const DepthStencilFormat = 1027;
const RedFormat = 1028;
const RedIntegerFormat = 1029;
const RGFormat = 1030;
const RGIntegerFormat = 1031;
const RGBAIntegerFormat = 1033;
const RGB_S3TC_DXT1_Format = 33776;
const RGBA_S3TC_DXT1_Format = 33777;
const RGBA_S3TC_DXT3_Format = 33778;
const RGBA_S3TC_DXT5_Format = 33779;
const RGB_PVRTC_4BPPV1_Format = 35840;
const RGB_PVRTC_2BPPV1_Format = 35841;
const RGBA_PVRTC_4BPPV1_Format = 35842;
const RGBA_PVRTC_2BPPV1_Format = 35843;
const RGB_ETC1_Format = 36196;
const RGB_ETC2_Format = 37492;
const RGBA_ETC2_EAC_Format = 37496;
const RGBA_ASTC_4x4_Format = 37808;
const RGBA_ASTC_5x4_Format = 37809;
const RGBA_ASTC_5x5_Format = 37810;
const RGBA_ASTC_6x5_Format = 37811;
const RGBA_ASTC_6x6_Format = 37812;
const RGBA_ASTC_8x5_Format = 37813;
const RGBA_ASTC_8x6_Format = 37814;
const RGBA_ASTC_8x8_Format = 37815;
const RGBA_ASTC_10x5_Format = 37816;
const RGBA_ASTC_10x6_Format = 37817;
const RGBA_ASTC_10x8_Format = 37818;
const RGBA_ASTC_10x10_Format = 37819;
const RGBA_ASTC_12x10_Format = 37820;
const RGBA_ASTC_12x12_Format = 37821;
const RGBA_BPTC_Format = 36492;
const LoopOnce = 2200;
const LoopRepeat = 2201;
const LoopPingPong = 2202;
const InterpolateDiscrete = 2300;
const InterpolateLinear = 2301;
const InterpolateSmooth = 2302;
const ZeroCurvatureEnding = 2400;
const ZeroSlopeEnding = 2401;
const WrapAroundEnding = 2402;
const NormalAnimationBlendMode = 2500;
const AdditiveAnimationBlendMode = 2501;
const TrianglesDrawMode = 0;
const TriangleStripDrawMode = 1;
const TriangleFanDrawMode = 2;
const LinearEncoding = 3000;
const sRGBEncoding = 3001;
const BasicDepthPacking = 3200;
const RGBADepthPacking = 3201;
const TangentSpaceNormalMap = 0;
const ObjectSpaceNormalMap = 1;
const ZeroStencilOp = 0;
const KeepStencilOp = 7680;
const ReplaceStencilOp = 7681;
const IncrementStencilOp = 7682;
const DecrementStencilOp = 7683;
const IncrementWrapStencilOp = 34055;
const DecrementWrapStencilOp = 34056;
const InvertStencilOp = 5386;
const NeverStencilFunc = 512;
const LessStencilFunc = 513;
const EqualStencilFunc = 514;
const LessEqualStencilFunc = 515;
const GreaterStencilFunc = 516;
const NotEqualStencilFunc = 517;
const GreaterEqualStencilFunc = 518;
const AlwaysStencilFunc = 519;
const StaticDrawUsage = 35044;
const DynamicDrawUsage = 35048;
const StreamDrawUsage = 35040;
const StaticReadUsage = 35045;
const DynamicReadUsage = 35049;
const StreamReadUsage = 35041;
const StaticCopyUsage = 35046;
const DynamicCopyUsage = 35050;
const StreamCopyUsage = 35042;
const GLSL1 = '100';
const GLSL3 = '300 es';
const _SRGBAFormat = 1035; // fallback for WebGL 1

/**
 * https://github.com/mrdoob/eventdispatcher.js/
 */
class EventDispatcher {
	addEventListener(type, listener) {
		if (this._listeners === undefined) this._listeners = {};
		const listeners = this._listeners;

		if (listeners[type] === undefined) {
			listeners[type] = [];
		}

		if (listeners[type].indexOf(listener) === -1) {
			listeners[type].push(listener);
		}
	}

	hasEventListener(type, listener) {
		if (this._listeners === undefined) return false;
		const listeners = this._listeners;
		return listeners[type] !== undefined && listeners[type].indexOf(listener) !== -1;
	}

	removeEventListener(type, listener) {
		if (this._listeners === undefined) return;
		const listeners = this._listeners;
		const listenerArray = listeners[type];

		if (listenerArray !== undefined) {
			const index = listenerArray.indexOf(listener);

			if (index !== -1) {
				listenerArray.splice(index, 1);
			}
		}
	}

	dispatchEvent(event) {
		if (this._listeners === undefined) return;
		const listeners = this._listeners;
		const listenerArray = listeners[event.type];

		if (listenerArray !== undefined) {
			event.target = this; // Make a copy, in case listeners are removed while iterating.

			const array = listenerArray.slice(0);

			for (let i = 0, l = array.length; i < l; i++) {
				array[i].call(this, event);
			}

			event.target = null;
		}
	}

}

const _lut = [];

for (let i = 0; i < 256; i++) {
	_lut[i] = (i < 16 ? '0' : '') + i.toString(16);
}

let _seed = 1234567;
const DEG2RAD = Math.PI / 180;
const RAD2DEG = 180 / Math.PI; // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136

function generateUUID() {
	const d0 = Math.random() * 0xffffffff | 0;
	const d1 = Math.random() * 0xffffffff | 0;
	const d2 = Math.random() * 0xffffffff | 0;
	const d3 = Math.random() * 0xffffffff | 0;
	const uuid = _lut[d0 & 0xff] + _lut[d0 >> 8 & 0xff] + _lut[d0 >> 16 & 0xff] + _lut[d0 >> 24 & 0xff] + '-' + _lut[d1 & 0xff] + _lut[d1 >> 8 & 0xff] + '-' + _lut[d1 >> 16 & 0x0f | 0x40] + _lut[d1 >> 24 & 0xff] + '-' + _lut[d2 & 0x3f | 0x80] + _lut[d2 >> 8 & 0xff] + '-' + _lut[d2 >> 16 & 0xff] + _lut[d2 >> 24 & 0xff] + _lut[d3 & 0xff] + _lut[d3 >> 8 & 0xff] + _lut[d3 >> 16 & 0xff] + _lut[d3 >> 24 & 0xff]; // .toUpperCase() here flattens concatenated strings to save heap memory space.

	return uuid.toUpperCase();
}

function clamp(value, min, max) {
	return Math.max(min, Math.min(max, value));
} // compute euclidian modulo of m % n
// https://en.wikipedia.org/wiki/Modulo_operation


function euclideanModulo(n, m) {
	return (n % m + m) % m;
} // Linear mapping from range <a1, a2> to range <b1, b2>


function mapLinear(x, a1, a2, b1, b2) {
	return b1 + (x - a1) * (b2 - b1) / (a2 - a1);
} // https://www.gamedev.net/tutorials/programming/general-and-gameplay-programming/inverse-lerp-a-super-useful-yet-often-overlooked-function-r5230/


function inverseLerp(x, y, value) {
	if (x !== y) {
		return (value - x) / (y - x);
	} else {
		return 0;
	}
} // https://en.wikipedia.org/wiki/Linear_interpolation


function lerp(x, y, t) {
	return (1 - t) * x + t * y;
} // http://www.rorydriscoll.com/2016/03/07/frame-rate-independent-damping-using-lerp/


function damp(x, y, lambda, dt) {
	return lerp(x, y, 1 - Math.exp(-lambda * dt));
} // https://www.desmos.com/calculator/vcsjnyz7x4


function pingpong(x, length = 1) {
	return length - Math.abs(euclideanModulo(x, length * 2) - length);
} // http://en.wikipedia.org/wiki/Smoothstep


function smoothstep(x, min, max) {
	if (x <= min) return 0;
	if (x >= max) return 1;
	x = (x - min) / (max - min);
	return x * x * (3 - 2 * x);
}

function smootherstep(x, min, max) {
	if (x <= min) return 0;
	if (x >= max) return 1;
	x = (x - min) / (max - min);
	return x * x * x * (x * (x * 6 - 15) + 10);
} // Random integer from <low, high> interval


function randInt(low, high) {
	return low + Math.floor(Math.random() * (high - low + 1));
} // Random float from <low, high> interval


function randFloat(low, high) {
	return low + Math.random() * (high - low);
} // Random float from <-range/2, range/2> interval


function randFloatSpread(range) {
	return range * (0.5 - Math.random());
} // Deterministic pseudo-random float in the interval [ 0, 1 ]


function seededRandom(s) {
	if (s !== undefined) _seed = s % 2147483647; // Park-Miller algorithm

	_seed = _seed * 16807 % 2147483647;
	return (_seed - 1) / 2147483646;
}

function degToRad(degrees) {
	return degrees * DEG2RAD;
}

function radToDeg(radians) {
	return radians * RAD2DEG;
}

function isPowerOfTwo(value) {
	return (value & value - 1) === 0 && value !== 0;
}

function ceilPowerOfTwo(value) {
	return Math.pow(2, Math.ceil(Math.log(value) / Math.LN2));
}

function floorPowerOfTwo(value) {
	return Math.pow(2, Math.floor(Math.log(value) / Math.LN2));
}

function setQuaternionFromProperEuler(q, a, b, c, order) {
	// Intrinsic Proper Euler Angles - see https://en.wikipedia.org/wiki/Euler_angles
	// rotations are applied to the axes in the order specified by 'order'
	// rotation by angle 'a' is applied first, then by angle 'b', then by angle 'c'
	// angles are in radians
	const cos = Math.cos;
	const sin = Math.sin;
	const c2 = cos(b / 2);
	const s2 = sin(b / 2);
	const c13 = cos((a + c) / 2);
	const s13 = sin((a + c) / 2);
	const c1_3 = cos((a - c) / 2);
	const s1_3 = sin((a - c) / 2);
	const c3_1 = cos((c - a) / 2);
	const s3_1 = sin((c - a) / 2);

	switch (order) {
		case 'XYX':
			q.set(c2 * s13, s2 * c1_3, s2 * s1_3, c2 * c13);
			break;

		case 'YZY':
			q.set(s2 * s1_3, c2 * s13, s2 * c1_3, c2 * c13);
			break;

		case 'ZXZ':
			q.set(s2 * c1_3, s2 * s1_3, c2 * s13, c2 * c13);
			break;

		case 'XZX':
			q.set(c2 * s13, s2 * s3_1, s2 * c3_1, c2 * c13);
			break;

		case 'YXY':
			q.set(s2 * c3_1, c2 * s13, s2 * s3_1, c2 * c13);
			break;

		case 'ZYZ':
			q.set(s2 * s3_1, s2 * c3_1, c2 * s13, c2 * c13);
			break;

		default:
			console.warn('THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: ' + order);
	}
}

var MathUtils = /*#__PURE__*/Object.freeze({
	__proto__: null,
	DEG2RAD: DEG2RAD,
	RAD2DEG: RAD2DEG,
	generateUUID: generateUUID,
	clamp: clamp,
	euclideanModulo: euclideanModulo,
	mapLinear: mapLinear,
	inverseLerp: inverseLerp,
	lerp: lerp,
	damp: damp,
	pingpong: pingpong,
	smoothstep: smoothstep,
	smootherstep: smootherstep,
	randInt: randInt,
	randFloat: randFloat,
	randFloatSpread: randFloatSpread,
	seededRandom: seededRandom,
	degToRad: degToRad,
	radToDeg: radToDeg,
	isPowerOfTwo: isPowerOfTwo,
	ceilPowerOfTwo: ceilPowerOfTwo,
	floorPowerOfTwo: floorPowerOfTwo,
	setQuaternionFromProperEuler: setQuaternionFromProperEuler
});

class Vector2 {
	constructor(x = 0, y = 0) {
		this.x = x;
		this.y = y;
	}

	get width() {
		return this.x;
	}

	set width(value) {
		this.x = value;
	}

	get height() {
		return this.y;
	}

	set height(value) {
		this.y = value;
	}

	set(x, y) {
		this.x = x;
		this.y = y;
		return this;
	}

	setScalar(scalar) {
		this.x = scalar;
		this.y = scalar;
		return this;
	}

	setX(x) {
		this.x = x;
		return this;
	}

	setY(y) {
		this.y = y;
		return this;
	}

	setComponent(index, value) {
		switch (index) {
			case 0:
				this.x = value;
				break;

			case 1:
				this.y = value;
				break;

			default:
				throw new Error('index is out of range: ' + index);
		}

		return this;
	}

	getComponent(index) {
		switch (index) {
			case 0:
				return this.x;

			case 1:
				return this.y;

			default:
				throw new Error('index is out of range: ' + index);
		}
	}

	clone() {
		return new this.constructor(this.x, this.y);
	}

	copy(v) {
		this.x = v.x;
		this.y = v.y;
		return this;
	}

	add(v, w) {
		if (w !== undefined) {
			console.warn('THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');
			return this.addVectors(v, w);
		}

		this.x += v.x;
		this.y += v.y;
		return this;
	}

	addScalar(s) {
		this.x += s;
		this.y += s;
		return this;
	}

	addVectors(a, b) {
		this.x = a.x + b.x;
		this.y = a.y + b.y;
		return this;
	}

	addScaledVector(v, s) {
		this.x += v.x * s;
		this.y += v.y * s;
		return this;
	}

	sub(v, w) {
		if (w !== undefined) {
			console.warn('THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');
			return this.subVectors(v, w);
		}

		this.x -= v.x;
		this.y -= v.y;
		return this;
	}

	subScalar(s) {
		this.x -= s;
		this.y -= s;
		return this;
	}

	subVectors(a, b) {
		this.x = a.x - b.x;
		this.y = a.y - b.y;
		return this;
	}

	multiply(v) {
		this.x *= v.x;
		this.y *= v.y;
		return this;
	}

	multiplyScalar(scalar) {
		this.x *= scalar;
		this.y *= scalar;
		return this;
	}

	divide(v) {
		this.x /= v.x;
		this.y /= v.y;
		return this;
	}

	divideScalar(scalar) {
		return this.multiplyScalar(1 / scalar);
	}

	applyMatrix3(m) {
		const x = this.x,
					y = this.y;
		const e = m.elements;
		this.x = e[0] * x + e[3] * y + e[6];
		this.y = e[1] * x + e[4] * y + e[7];
		return this;
	}

	min(v) {
		this.x = Math.min(this.x, v.x);
		this.y = Math.min(this.y, v.y);
		return this;
	}

	max(v) {
		this.x = Math.max(this.x, v.x);
		this.y = Math.max(this.y, v.y);
		return this;
	}

	clamp(min, max) {
		// assumes min < max, componentwise
		this.x = Math.max(min.x, Math.min(max.x, this.x));
		this.y = Math.max(min.y, Math.min(max.y, this.y));
		return this;
	}

	clampScalar(minVal, maxVal) {
		this.x = Math.max(minVal, Math.min(maxVal, this.x));
		this.y = Math.max(minVal, Math.min(maxVal, this.y));
		return this;
	}

	clampLength(min, max) {
		const length = this.length();
		return this.divideScalar(length || 1).multiplyScalar(Math.max(min, Math.min(max, length)));
	}

	floor() {
		this.x = Math.floor(this.x);
		this.y = Math.floor(this.y);
		return this;
	}

	ceil() {
		this.x = Math.ceil(this.x);
		this.y = Math.ceil(this.y);
		return this;
	}

	round() {
		this.x = Math.round(this.x);
		this.y = Math.round(this.y);
		return this;
	}

	roundToZero() {
		this.x = this.x < 0 ? Math.ceil(this.x) : Math.floor(this.x);
		this.y = this.y < 0 ? Math.ceil(this.y) : Math.floor(this.y);
		return this;
	}

	negate() {
		this.x = -this.x;
		this.y = -this.y;
		return this;
	}

	dot(v) {
		return this.x * v.x + this.y * v.y;
	}

	cross(v) {
		return this.x * v.y - this.y * v.x;
	}

	lengthSq() {
		return this.x * this.x + this.y * this.y;
	}

	length() {
		return Math.sqrt(this.x * this.x + this.y * this.y);
	}

	manhattanLength() {
		return Math.abs(this.x) + Math.abs(this.y);
	}

	normalize() {
		return this.divideScalar(this.length() || 1);
	}

	angle() {
		// computes the angle in radians with respect to the positive x-axis
		const angle = Math.atan2(-this.y, -this.x) + Math.PI;
		return angle;
	}

	distanceTo(v) {
		return Math.sqrt(this.distanceToSquared(v));
	}

	distanceToSquared(v) {
		const dx = this.x - v.x,
					dy = this.y - v.y;
		return dx * dx + dy * dy;
	}

	manhattanDistanceTo(v) {
		return Math.abs(this.x - v.x) + Math.abs(this.y - v.y);
	}

	setLength(length) {
		return this.normalize().multiplyScalar(length);
	}

	lerp(v, alpha) {
		this.x += (v.x - this.x) * alpha;
		this.y += (v.y - this.y) * alpha;
		return this;
	}

	lerpVectors(v1, v2, alpha) {
		this.x = v1.x + (v2.x - v1.x) * alpha;
		this.y = v1.y + (v2.y - v1.y) * alpha;
		return this;
	}

	equals(v) {
		return v.x === this.x && v.y === this.y;
	}

	fromArray(array, offset = 0) {
		this.x = array[offset];
		this.y = array[offset + 1];
		return this;
	}

	toArray(array = [], offset = 0) {
		array[offset] = this.x;
		array[offset + 1] = this.y;
		return array;
	}

	fromBufferAttribute(attribute, index, offset) {
		if (offset !== undefined) {
			console.warn('THREE.Vector2: offset has been removed from .fromBufferAttribute().');
		}

		this.x = attribute.getX(index);
		this.y = attribute.getY(index);
		return this;
	}

	rotateAround(center, angle) {
		const c = Math.cos(angle),
					s = Math.sin(angle);
		const x = this.x - center.x;
		const y = this.y - center.y;
		this.x = x * c - y * s + center.x;
		this.y = x * s + y * c + center.y;
		return this;
	}

	random() {
		this.x = Math.random();
		this.y = Math.random();
		return this;
	}

	*[Symbol.iterator]() {
		yield this.x;
		yield this.y;
	}

}

Vector2.prototype.isVector2 = true;

class Matrix3 {
	constructor() {
		this.elements = [1, 0, 0, 0, 1, 0, 0, 0, 1];

		if (arguments.length > 0) {
			console.error('THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.');
		}
	}

	set(n11, n12, n13, n21, n22, n23, n31, n32, n33) {
		const te = this.elements;
		te[0] = n11;
		te[1] = n21;
		te[2] = n31;
		te[3] = n12;
		te[4] = n22;
		te[5] = n32;
		te[6] = n13;
		te[7] = n23;
		te[8] = n33;
		return this;
	}

	identity() {
		this.set(1, 0, 0, 0, 1, 0, 0, 0, 1);
		return this;
	}

	copy(m) {
		const te = this.elements;
		const me = m.elements;
		te[0] = me[0];
		te[1] = me[1];
		te[2] = me[2];
		te[3] = me[3];
		te[4] = me[4];
		te[5] = me[5];
		te[6] = me[6];
		te[7] = me[7];
		te[8] = me[8];
		return this;
	}

	extractBasis(xAxis, yAxis, zAxis) {
		xAxis.setFromMatrix3Column(this, 0);
		yAxis.setFromMatrix3Column(this, 1);
		zAxis.setFromMatrix3Column(this, 2);
		return this;
	}

	setFromMatrix4(m) {
		const me = m.elements;
		this.set(me[0], me[4], me[8], me[1], me[5], me[9], me[2], me[6], me[10]);
		return this;
	}

	multiply(m) {
		return this.multiplyMatrices(this, m);
	}

	premultiply(m) {
		return this.multiplyMatrices(m, this);
	}

	multiplyMatrices(a, b) {
		const ae = a.elements;
		const be = b.elements;
		const te = this.elements;
		const a11 = ae[0],
					a12 = ae[3],
					a13 = ae[6];
		const a21 = ae[1],
					a22 = ae[4],
					a23 = ae[7];
		const a31 = ae[2],
					a32 = ae[5],
					a33 = ae[8];
		const b11 = be[0],
					b12 = be[3],
					b13 = be[6];
		const b21 = be[1],
					b22 = be[4],
					b23 = be[7];
		const b31 = be[2],
					b32 = be[5],
					b33 = be[8];
		te[0] = a11 * b11 + a12 * b21 + a13 * b31;
		te[3] = a11 * b12 + a12 * b22 + a13 * b32;
		te[6] = a11 * b13 + a12 * b23 + a13 * b33;
		te[1] = a21 * b11 + a22 * b21 + a23 * b31;
		te[4] = a21 * b12 + a22 * b22 + a23 * b32;
		te[7] = a21 * b13 + a22 * b23 + a23 * b33;
		te[2] = a31 * b11 + a32 * b21 + a33 * b31;
		te[5] = a31 * b12 + a32 * b22 + a33 * b32;
		te[8] = a31 * b13 + a32 * b23 + a33 * b33;
		return this;
	}

	multiplyScalar(s) {
		const te = this.elements;
		te[0] *= s;
		te[3] *= s;
		te[6] *= s;
		te[1] *= s;
		te[4] *= s;
		te[7] *= s;
		te[2] *= s;
		te[5] *= s;
		te[8] *= s;
		return this;
	}

	determinant() {
		const te = this.elements;
		const a = te[0],
					b = te[1],
					c = te[2],
					d = te[3],
					e = te[4],
					f = te[5],
					g = te[6],
					h = te[7],
					i = te[8];
		return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;
	}

	invert() {
		const te = this.elements,
					n11 = te[0],
					n21 = te[1],
					n31 = te[2],
					n12 = te[3],
					n22 = te[4],
					n32 = te[5],
					n13 = te[6],
					n23 = te[7],
					n33 = te[8],
					t11 = n33 * n22 - n32 * n23,
					t12 = n32 * n13 - n33 * n12,
					t13 = n23 * n12 - n22 * n13,
					det = n11 * t11 + n21 * t12 + n31 * t13;
		if (det === 0) return this.set(0, 0, 0, 0, 0, 0, 0, 0, 0);
		const detInv = 1 / det;
		te[0] = t11 * detInv;
		te[1] = (n31 * n23 - n33 * n21) * detInv;
		te[2] = (n32 * n21 - n31 * n22) * detInv;
		te[3] = t12 * detInv;
		te[4] = (n33 * n11 - n31 * n13) * detInv;
		te[5] = (n31 * n12 - n32 * n11) * detInv;
		te[6] = t13 * detInv;
		te[7] = (n21 * n13 - n23 * n11) * detInv;
		te[8] = (n22 * n11 - n21 * n12) * detInv;
		return this;
	}

	transpose() {
		let tmp;
		const m = this.elements;
		tmp = m[1];
		m[1] = m[3];
		m[3] = tmp;
		tmp = m[2];
		m[2] = m[6];
		m[6] = tmp;
		tmp = m[5];
		m[5] = m[7];
		m[7] = tmp;
		return this;
	}

	getNormalMatrix(matrix4) {
		return this.setFromMatrix4(matrix4).invert().transpose();
	}

	transposeIntoArray(r) {
		const m = this.elements;
		r[0] = m[0];
		r[1] = m[3];
		r[2] = m[6];
		r[3] = m[1];
		r[4] = m[4];
		r[5] = m[7];
		r[6] = m[2];
		r[7] = m[5];
		r[8] = m[8];
		return this;
	}

	setUvTransform(tx, ty, sx, sy, rotation, cx, cy) {
		const c = Math.cos(rotation);
		const s = Math.sin(rotation);
		this.set(sx * c, sx * s, -sx * (c * cx + s * cy) + cx + tx, -sy * s, sy * c, -sy * (-s * cx + c * cy) + cy + ty, 0, 0, 1);
		return this;
	}

	scale(sx, sy) {
		const te = this.elements;
		te[0] *= sx;
		te[3] *= sx;
		te[6] *= sx;
		te[1] *= sy;
		te[4] *= sy;
		te[7] *= sy;
		return this;
	}

	rotate(theta) {
		const c = Math.cos(theta);
		const s = Math.sin(theta);
		const te = this.elements;
		const a11 = te[0],
					a12 = te[3],
					a13 = te[6];
		const a21 = te[1],
					a22 = te[4],
					a23 = te[7];
		te[0] = c * a11 + s * a21;
		te[3] = c * a12 + s * a22;
		te[6] = c * a13 + s * a23;
		te[1] = -s * a11 + c * a21;
		te[4] = -s * a12 + c * a22;
		te[7] = -s * a13 + c * a23;
		return this;
	}

	translate(tx, ty) {
		const te = this.elements;
		te[0] += tx * te[2];
		te[3] += tx * te[5];
		te[6] += tx * te[8];
		te[1] += ty * te[2];
		te[4] += ty * te[5];
		te[7] += ty * te[8];
		return this;
	}

	equals(matrix) {
		const te = this.elements;
		const me = matrix.elements;

		for (let i = 0; i < 9; i++) {
			if (te[i] !== me[i]) return false;
		}

		return true;
	}

	fromArray(array, offset = 0) {
		for (let i = 0; i < 9; i++) {
			this.elements[i] = array[i + offset];
		}

		return this;
	}

	toArray(array = [], offset = 0) {
		const te = this.elements;
		array[offset] = te[0];
		array[offset + 1] = te[1];
		array[offset + 2] = te[2];
		array[offset + 3] = te[3];
		array[offset + 4] = te[4];
		array[offset + 5] = te[5];
		array[offset + 6] = te[6];
		array[offset + 7] = te[7];
		array[offset + 8] = te[8];
		return array;
	}

	clone() {
		return new this.constructor().fromArray(this.elements);
	}

}

Matrix3.prototype.isMatrix3 = true;

function arrayNeedsUint32(array) {
	// assumes larger values usually on last
	for (let i = array.length - 1; i >= 0; --i) {
		if (array[i] > 65535) return true;
	}

	return false;
}

const TYPED_ARRAYS = {
	Int8Array: Int8Array,
	Uint8Array: Uint8Array,
	Uint8ClampedArray: Uint8ClampedArray,
	Int16Array: Int16Array,
	Uint16Array: Uint16Array,
	Int32Array: Int32Array,
	Uint32Array: Uint32Array,
	Float32Array: Float32Array,
	Float64Array: Float64Array
};

function getTypedArray(type, buffer) {
	return new TYPED_ARRAYS[type](buffer);
}

function createElementNS(name) {
	return document.createElementNS('http://www.w3.org/1999/xhtml', name);
}

const _colorKeywords = {
	'aliceblue': 0xF0F8FF,
	'antiquewhite': 0xFAEBD7,
	'aqua': 0x00FFFF,
	'aquamarine': 0x7FFFD4,
	'azure': 0xF0FFFF,
	'beige': 0xF5F5DC,
	'bisque': 0xFFE4C4,
	'black': 0x000000,
	'blanchedalmond': 0xFFEBCD,
	'blue': 0x0000FF,
	'blueviolet': 0x8A2BE2,
	'brown': 0xA52A2A,
	'burlywood': 0xDEB887,
	'cadetblue': 0x5F9EA0,
	'chartreuse': 0x7FFF00,
	'chocolate': 0xD2691E,
	'coral': 0xFF7F50,
	'cornflowerblue': 0x6495ED,
	'cornsilk': 0xFFF8DC,
	'crimson': 0xDC143C,
	'cyan': 0x00FFFF,
	'darkblue': 0x00008B,
	'darkcyan': 0x008B8B,
	'darkgoldenrod': 0xB8860B,
	'darkgray': 0xA9A9A9,
	'darkgreen': 0x006400,
	'darkgrey': 0xA9A9A9,
	'darkkhaki': 0xBDB76B,
	'darkmagenta': 0x8B008B,
	'darkolivegreen': 0x556B2F,
	'darkorange': 0xFF8C00,
	'darkorchid': 0x9932CC,
	'darkred': 0x8B0000,
	'darksalmon': 0xE9967A,
	'darkseagreen': 0x8FBC8F,
	'darkslateblue': 0x483D8B,
	'darkslategray': 0x2F4F4F,
	'darkslategrey': 0x2F4F4F,
	'darkturquoise': 0x00CED1,
	'darkviolet': 0x9400D3,
	'deeppink': 0xFF1493,
	'deepskyblue': 0x00BFFF,
	'dimgray': 0x696969,
	'dimgrey': 0x696969,
	'dodgerblue': 0x1E90FF,
	'firebrick': 0xB22222,
	'floralwhite': 0xFFFAF0,
	'forestgreen': 0x228B22,
	'fuchsia': 0xFF00FF,
	'gainsboro': 0xDCDCDC,
	'ghostwhite': 0xF8F8FF,
	'gold': 0xFFD700,
	'goldenrod': 0xDAA520,
	'gray': 0x808080,
	'green': 0x008000,
	'greenyellow': 0xADFF2F,
	'grey': 0x808080,
	'honeydew': 0xF0FFF0,
	'hotpink': 0xFF69B4,
	'indianred': 0xCD5C5C,
	'indigo': 0x4B0082,
	'ivory': 0xFFFFF0,
	'khaki': 0xF0E68C,
	'lavender': 0xE6E6FA,
	'lavenderblush': 0xFFF0F5,
	'lawngreen': 0x7CFC00,
	'lemonchiffon': 0xFFFACD,
	'lightblue': 0xADD8E6,
	'lightcoral': 0xF08080,
	'lightcyan': 0xE0FFFF,
	'lightgoldenrodyellow': 0xFAFAD2,
	'lightgray': 0xD3D3D3,
	'lightgreen': 0x90EE90,
	'lightgrey': 0xD3D3D3,
	'lightpink': 0xFFB6C1,
	'lightsalmon': 0xFFA07A,
	'lightseagreen': 0x20B2AA,
	'lightskyblue': 0x87CEFA,
	'lightslategray': 0x778899,
	'lightslategrey': 0x778899,
	'lightsteelblue': 0xB0C4DE,
	'lightyellow': 0xFFFFE0,
	'lime': 0x00FF00,
	'limegreen': 0x32CD32,
	'linen': 0xFAF0E6,
	'magenta': 0xFF00FF,
	'maroon': 0x800000,
	'mediumaquamarine': 0x66CDAA,
	'mediumblue': 0x0000CD,
	'mediumorchid': 0xBA55D3,
	'mediumpurple': 0x9370DB,
	'mediumseagreen': 0x3CB371,
	'mediumslateblue': 0x7B68EE,
	'mediumspringgreen': 0x00FA9A,
	'mediumturquoise': 0x48D1CC,
	'mediumvioletred': 0xC71585,
	'midnightblue': 0x191970,
	'mintcream': 0xF5FFFA,
	'mistyrose': 0xFFE4E1,
	'moccasin': 0xFFE4B5,
	'navajowhite': 0xFFDEAD,
	'navy': 0x000080,
	'oldlace': 0xFDF5E6,
	'olive': 0x808000,
	'olivedrab': 0x6B8E23,
	'orange': 0xFFA500,
	'orangered': 0xFF4500,
	'orchid': 0xDA70D6,
	'palegoldenrod': 0xEEE8AA,
	'palegreen': 0x98FB98,
	'paleturquoise': 0xAFEEEE,
	'palevioletred': 0xDB7093,
	'papayawhip': 0xFFEFD5,
	'peachpuff': 0xFFDAB9,
	'peru': 0xCD853F,
	'pink': 0xFFC0CB,
	'plum': 0xDDA0DD,
	'powderblue': 0xB0E0E6,
	'purple': 0x800080,
	'rebeccapurple': 0x663399,
	'red': 0xFF0000,
	'rosybrown': 0xBC8F8F,
	'royalblue': 0x4169E1,
	'saddlebrown': 0x8B4513,
	'salmon': 0xFA8072,
	'sandybrown': 0xF4A460,
	'seagreen': 0x2E8B57,
	'seashell': 0xFFF5EE,
	'sienna': 0xA0522D,
	'silver': 0xC0C0C0,
	'skyblue': 0x87CEEB,
	'slateblue': 0x6A5ACD,
	'slategray': 0x708090,
	'slategrey': 0x708090,
	'snow': 0xFFFAFA,
	'springgreen': 0x00FF7F,
	'steelblue': 0x4682B4,
	'tan': 0xD2B48C,
	'teal': 0x008080,
	'thistle': 0xD8BFD8,
	'tomato': 0xFF6347,
	'turquoise': 0x40E0D0,
	'violet': 0xEE82EE,
	'wheat': 0xF5DEB3,
	'white': 0xFFFFFF,
	'whitesmoke': 0xF5F5F5,
	'yellow': 0xFFFF00,
	'yellowgreen': 0x9ACD32
};
const _hslA = {
	h: 0,
	s: 0,
	l: 0
};
const _hslB = {
	h: 0,
	s: 0,
	l: 0
};

function hue2rgb(p, q, t) {
	if (t < 0) t += 1;
	if (t > 1) t -= 1;
	if (t < 1 / 6) return p + (q - p) * 6 * t;
	if (t < 1 / 2) return q;
	if (t < 2 / 3) return p + (q - p) * 6 * (2 / 3 - t);
	return p;
}

function SRGBToLinear(c) {
	return c < 0.04045 ? c * 0.0773993808 : Math.pow(c * 0.9478672986 + 0.0521327014, 2.4);
}

function LinearToSRGB(c) {
	return c < 0.0031308 ? c * 12.92 : 1.055 * Math.pow(c, 0.41666) - 0.055;
}

class Color {
	constructor(r, g, b) {
		if (g === undefined && b === undefined) {
			// r is THREE.Color, hex or string
			return this.set(r);
		}

		return this.setRGB(r, g, b);
	}

	set(value) {
		if (value && value.isColor) {
			this.copy(value);
		} else if (typeof value === 'number') {
			this.setHex(value);
		} else if (typeof value === 'string') {
			this.setStyle(value);
		}

		return this;
	}

	setScalar(scalar) {
		this.r = scalar;
		this.g = scalar;
		this.b = scalar;
		return this;
	}

	setHex(hex) {
		hex = Math.floor(hex);
		this.r = (hex >> 16 & 255) / 255;
		this.g = (hex >> 8 & 255) / 255;
		this.b = (hex & 255) / 255;
		return this;
	}

	setRGB(r, g, b) {
		this.r = r;
		this.g = g;
		this.b = b;
		return this;
	}

	setHSL(h, s, l) {
		// h,s,l ranges are in 0.0 - 1.0
		h = euclideanModulo(h, 1);
		s = clamp(s, 0, 1);
		l = clamp(l, 0, 1);

		if (s === 0) {
			this.r = this.g = this.b = l;
		} else {
			const p = l <= 0.5 ? l * (1 + s) : l + s - l * s;
			const q = 2 * l - p;
			this.r = hue2rgb(q, p, h + 1 / 3);
			this.g = hue2rgb(q, p, h);
			this.b = hue2rgb(q, p, h - 1 / 3);
		}

		return this;
	}

	setStyle(style) {
		function handleAlpha(string) {
			if (string === undefined) return;

			if (parseFloat(string) < 1) {
				console.warn('THREE.Color: Alpha component of ' + style + ' will be ignored.');
			}
		}

		let m;

		if (m = /^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec(style)) {
			// rgb / hsl
			let color;
			const name = m[1];
			const components = m[2];

			switch (name) {
				case 'rgb':
				case 'rgba':
					if (color = /^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
						// rgb(255,0,0) rgba(255,0,0,0.5)
						this.r = Math.min(255, parseInt(color[1], 10)) / 255;
						this.g = Math.min(255, parseInt(color[2], 10)) / 255;
						this.b = Math.min(255, parseInt(color[3], 10)) / 255;
						handleAlpha(color[4]);
						return this;
					}

					if (color = /^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
						// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
						this.r = Math.min(100, parseInt(color[1], 10)) / 100;
						this.g = Math.min(100, parseInt(color[2], 10)) / 100;
						this.b = Math.min(100, parseInt(color[3], 10)) / 100;
						handleAlpha(color[4]);
						return this;
					}

					break;

				case 'hsl':
				case 'hsla':
					if (color = /^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
						// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
						const h = parseFloat(color[1]) / 360;
						const s = parseInt(color[2], 10) / 100;
						const l = parseInt(color[3], 10) / 100;
						handleAlpha(color[4]);
						return this.setHSL(h, s, l);
					}

					break;
			}
		} else if (m = /^\#([A-Fa-f\d]+)$/.exec(style)) {
			// hex color
			const hex = m[1];
			const size = hex.length;

			if (size === 3) {
				// #ff0
				this.r = parseInt(hex.charAt(0) + hex.charAt(0), 16) / 255;
				this.g = parseInt(hex.charAt(1) + hex.charAt(1), 16) / 255;
				this.b = parseInt(hex.charAt(2) + hex.charAt(2), 16) / 255;
				return this;
			} else if (size === 6) {
				// #ff0000
				this.r = parseInt(hex.charAt(0) + hex.charAt(1), 16) / 255;
				this.g = parseInt(hex.charAt(2) + hex.charAt(3), 16) / 255;
				this.b = parseInt(hex.charAt(4) + hex.charAt(5), 16) / 255;
				return this;
			}
		}

		if (style && style.length > 0) {
			return this.setColorName(style);
		}

		return this;
	}

	setColorName(style) {
		// color keywords
		const hex = _colorKeywords[style.toLowerCase()];

		if (hex !== undefined) {
			// red
			this.setHex(hex);
		} else {
			// unknown color
			console.warn('THREE.Color: Unknown color ' + style);
		}

		return this;
	}

	clone() {
		return new this.constructor(this.r, this.g, this.b);
	}

	copy(color) {
		this.r = color.r;
		this.g = color.g;
		this.b = color.b;
		return this;
	}

	copySRGBToLinear(color) {
		this.r = SRGBToLinear(color.r);
		this.g = SRGBToLinear(color.g);
		this.b = SRGBToLinear(color.b);
		return this;
	}

	copyLinearToSRGB(color) {
		this.r = LinearToSRGB(color.r);
		this.g = LinearToSRGB(color.g);
		this.b = LinearToSRGB(color.b);
		return this;
	}

	convertSRGBToLinear() {
		this.copySRGBToLinear(this);
		return this;
	}

	convertLinearToSRGB() {
		this.copyLinearToSRGB(this);
		return this;
	}

	getHex() {
		return this.r * 255 << 16 ^ this.g * 255 << 8 ^ this.b * 255 << 0;
	}

	getHexString() {
		return ('000000' + this.getHex().toString(16)).slice(-6);
	}

	getHSL(target) {
		// h,s,l ranges are in 0.0 - 1.0
		const r = this.r,
					g = this.g,
					b = this.b;
		const max = Math.max(r, g, b);
		const min = Math.min(r, g, b);
		let hue, saturation;
		const lightness = (min + max) / 2.0;

		if (min === max) {
			hue = 0;
			saturation = 0;
		} else {
			const delta = max - min;
			saturation = lightness <= 0.5 ? delta / (max + min) : delta / (2 - max - min);

			switch (max) {
				case r:
					hue = (g - b) / delta + (g < b ? 6 : 0);
					break;

				case g:
					hue = (b - r) / delta + 2;
					break;

				case b:
					hue = (r - g) / delta + 4;
					break;
			}

			hue /= 6;
		}

		target.h = hue;
		target.s = saturation;
		target.l = lightness;
		return target;
	}

	getStyle() {
		return 'rgb(' + (this.r * 255 | 0) + ',' + (this.g * 255 | 0) + ',' + (this.b * 255 | 0) + ')';
	}

	offsetHSL(h, s, l) {
		this.getHSL(_hslA);
		_hslA.h += h;
		_hslA.s += s;
		_hslA.l += l;
		this.setHSL(_hslA.h, _hslA.s, _hslA.l);
		return this;
	}

	add(color) {
		this.r += color.r;
		this.g += color.g;
		this.b += color.b;
		return this;
	}

	addColors(color1, color2) {
		this.r = color1.r + color2.r;
		this.g = color1.g + color2.g;
		this.b = color1.b + color2.b;
		return this;
	}

	addScalar(s) {
		this.r += s;
		this.g += s;
		this.b += s;
		return this;
	}

	sub(color) {
		this.r = Math.max(0, this.r - color.r);
		this.g = Math.max(0, this.g - color.g);
		this.b = Math.max(0, this.b - color.b);
		return this;
	}

	multiply(color) {
		this.r *= color.r;
		this.g *= color.g;
		this.b *= color.b;
		return this;
	}

	multiplyScalar(s) {
		this.r *= s;
		this.g *= s;
		this.b *= s;
		return this;
	}

	lerp(color, alpha) {
		this.r += (color.r - this.r) * alpha;
		this.g += (color.g - this.g) * alpha;
		this.b += (color.b - this.b) * alpha;
		return this;
	}

	lerpColors(color1, color2, alpha) {
		this.r = color1.r + (color2.r - color1.r) * alpha;
		this.g = color1.g + (color2.g - color1.g) * alpha;
		this.b = color1.b + (color2.b - color1.b) * alpha;
		return this;
	}

	lerpHSL(color, alpha) {
		this.getHSL(_hslA);
		color.getHSL(_hslB);
		const h = lerp(_hslA.h, _hslB.h, alpha);
		const s = lerp(_hslA.s, _hslB.s, alpha);
		const l = lerp(_hslA.l, _hslB.l, alpha);
		this.setHSL(h, s, l);
		return this;
	}

	equals(c) {
		return c.r === this.r && c.g === this.g && c.b === this.b;
	}

	fromArray(array, offset = 0) {
		this.r = array[offset];
		this.g = array[offset + 1];
		this.b = array[offset + 2];
		return this;
	}

	toArray(array = [], offset = 0) {
		array[offset] = this.r;
		array[offset + 1] = this.g;
		array[offset + 2] = this.b;
		return array;
	}

	fromBufferAttribute(attribute, index) {
		this.r = attribute.getX(index);
		this.g = attribute.getY(index);
		this.b = attribute.getZ(index);

		if (attribute.normalized === true) {
			// assuming Uint8Array
			this.r /= 255;
			this.g /= 255;
			this.b /= 255;
		}

		return this;
	}

	toJSON() {
		return this.getHex();
	}

}

Color.NAMES = _colorKeywords;
Color.prototype.isColor = true;
Color.prototype.r = 1;
Color.prototype.g = 1;
Color.prototype.b = 1;

let _canvas;

class ImageUtils {
	static getDataURL(image) {
		if (/^data:/i.test(image.src)) {
			return image.src;
		}

		if (typeof HTMLCanvasElement == 'undefined') {
			return image.src;
		}

		let canvas;

		if (image instanceof HTMLCanvasElement) {
			canvas = image;
		} else {
			if (_canvas === undefined) _canvas = createElementNS('canvas');
			_canvas.width = image.width;
			_canvas.height = image.height;

			const context = _canvas.getContext('2d');

			if (image instanceof ImageData) {
				context.putImageData(image, 0, 0);
			} else {
				context.drawImage(image, 0, 0, image.width, image.height);
			}

			canvas = _canvas;
		}

		if (canvas.width > 2048 || canvas.height > 2048) {
			console.warn('THREE.ImageUtils.getDataURL: Image converted to jpg for performance reasons', image);
			return canvas.toDataURL('image/jpeg', 0.6);
		} else {
			return canvas.toDataURL('image/png');
		}
	}

	static sRGBToLinear(image) {
		if (typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement || typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap) {
			const canvas = createElementNS('canvas');
			canvas.width = image.width;
			canvas.height = image.height;
			const context = canvas.getContext('2d');
			context.drawImage(image, 0, 0, image.width, image.height);
			const imageData = context.getImageData(0, 0, image.width, image.height);
			const data = imageData.data;

			for (let i = 0; i < data.length; i++) {
				data[i] = SRGBToLinear(data[i] / 255) * 255;
			}

			context.putImageData(imageData, 0, 0);
			return canvas;
		} else if (image.data) {
			const data = image.data.slice(0);

			for (let i = 0; i < data.length; i++) {
				if (data instanceof Uint8Array || data instanceof Uint8ClampedArray) {
					data[i] = Math.floor(SRGBToLinear(data[i] / 255) * 255);
				} else {
					// assuming float
					data[i] = SRGBToLinear(data[i]);
				}
			}

			return {
				data: data,
				width: image.width,
				height: image.height
			};
		} else {
			console.warn('THREE.ImageUtils.sRGBToLinear(): Unsupported image type. No color space conversion applied.');
			return image;
		}
	}

}

let textureId = 0;

class Texture extends EventDispatcher {
	constructor(image = Texture.DEFAULT_IMAGE, mapping = Texture.DEFAULT_MAPPING, wrapS = ClampToEdgeWrapping, wrapT = ClampToEdgeWrapping, magFilter = LinearFilter, minFilter = LinearMipmapLinearFilter, format = RGBAFormat, type = UnsignedByteType, anisotropy = 1, encoding = LinearEncoding) {
		super();
		Object.defineProperty(this, 'id', {
			value: textureId++
		});
		this.uuid = generateUUID();
		this.name = '';
		this.image = image;
		this.mipmaps = [];
		this.mapping = mapping;
		this.wrapS = wrapS;
		this.wrapT = wrapT;
		this.magFilter = magFilter;
		this.minFilter = minFilter;
		this.anisotropy = anisotropy;
		this.format = format;
		this.internalFormat = null;
		this.type = type;
		this.offset = new Vector2(0, 0);
		this.repeat = new Vector2(1, 1);
		this.center = new Vector2(0, 0);
		this.rotation = 0;
		this.matrixAutoUpdate = true;
		this.matrix = new Matrix3();
		this.generateMipmaps = true;
		this.premultiplyAlpha = false;
		this.flipY = true;
		this.unpackAlignment = 4; // valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)
		// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
		//
		// Also changing the encoding after already used by a Material will not automatically make the Material
		// update. You need to explicitly call Material.needsUpdate to trigger it to recompile.

		this.encoding = encoding;
		this.userData = {};
		this.version = 0;
		this.onUpdate = null;
		this.isRenderTargetTexture = false; // indicates whether a texture belongs to a render target or not

		this.needsPMREMUpdate = false; // indicates whether this texture should be processed by PMREMGenerator or not (only relevant for render target textures)
	}

	updateMatrix() {
		this.matrix.setUvTransform(this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y);
	}

	clone() {
		return new this.constructor().copy(this);
	}

	copy(source) {
		this.name = source.name;
		this.image = source.image;
		this.mipmaps = source.mipmaps.slice(0);
		this.mapping = source.mapping;
		this.wrapS = source.wrapS;
		this.wrapT = source.wrapT;
		this.magFilter = source.magFilter;
		this.minFilter = source.minFilter;
		this.anisotropy = source.anisotropy;
		this.format = source.format;
		this.internalFormat = source.internalFormat;
		this.type = source.type;
		this.offset.copy(source.offset);
		this.repeat.copy(source.repeat);
		this.center.copy(source.center);
		this.rotation = source.rotation;
		this.matrixAutoUpdate = source.matrixAutoUpdate;
		this.matrix.copy(source.matrix);
		this.generateMipmaps = source.generateMipmaps;
		this.premultiplyAlpha = source.premultiplyAlpha;
		this.flipY = source.flipY;
		this.unpackAlignment = source.unpackAlignment;
		this.encoding = source.encoding;
		this.userData = JSON.parse(JSON.stringify(source.userData));
		return this;
	}

	toJSON(meta) {
		const isRootObject = meta === undefined || typeof meta === 'string';

		if (!isRootObject && meta.textures[this.uuid] !== undefined) {
			return meta.textures[this.uuid];
		}

		const output = {
			metadata: {
				version: 4.5,
				type: 'Texture',
				generator: 'Texture.toJSON'
			},
			uuid: this.uuid,
			name: this.name,
			mapping: this.mapping,
			repeat: [this.repeat.x, this.repeat.y],
			offset: [this.offset.x, this.offset.y],
			center: [this.center.x, this.center.y],
			rotation: this.rotation,
			wrap: [this.wrapS, this.wrapT],
			format: this.format,
			type: this.type,
			encoding: this.encoding,
			minFilter: this.minFilter,
			magFilter: this.magFilter,
			anisotropy: this.anisotropy,
			flipY: this.flipY,
			premultiplyAlpha: this.premultiplyAlpha,
			unpackAlignment: this.unpackAlignment
		};

		if (this.image !== undefined) {
			// TODO: Move to THREE.Image
			const image = this.image;

			if (image.uuid === undefined) {
				image.uuid = generateUUID(); // UGH
			}

			if (!isRootObject && meta.images[image.uuid] === undefined) {
				let url;

				if (Array.isArray(image)) {
					// process array of images e.g. CubeTexture
					url = [];

					for (let i = 0, l = image.length; i < l; i++) {
						// check cube texture with data textures
						if (image[i].isDataTexture) {
							url.push(serializeImage(image[i].image));
						} else {
							url.push(serializeImage(image[i]));
						}
					}
				} else {
					// process single image
					url = serializeImage(image);
				}

				meta.images[image.uuid] = {
					uuid: image.uuid,
					url: url
				};
			}

			output.image = image.uuid;
		}

		if (JSON.stringify(this.userData) !== '{}') output.userData = this.userData;

		if (!isRootObject) {
			meta.textures[this.uuid] = output;
		}

		return output;
	}

	dispose() {
		this.dispatchEvent({
			type: 'dispose'
		});
	}

	transformUv(uv) {
		if (this.mapping !== UVMapping) return uv;
		uv.applyMatrix3(this.matrix);

		if (uv.x < 0 || uv.x > 1) {
			switch (this.wrapS) {
				case RepeatWrapping:
					uv.x = uv.x - Math.floor(uv.x);
					break;

				case ClampToEdgeWrapping:
					uv.x = uv.x < 0 ? 0 : 1;
					break;

				case MirroredRepeatWrapping:
					if (Math.abs(Math.floor(uv.x) % 2) === 1) {
						uv.x = Math.ceil(uv.x) - uv.x;
					} else {
						uv.x = uv.x - Math.floor(uv.x);
					}

					break;
			}
		}

		if (uv.y < 0 || uv.y > 1) {
			switch (this.wrapT) {
				case RepeatWrapping:
					uv.y = uv.y - Math.floor(uv.y);
					break;

				case ClampToEdgeWrapping:
					uv.y = uv.y < 0 ? 0 : 1;
					break;

				case MirroredRepeatWrapping:
					if (Math.abs(Math.floor(uv.y) % 2) === 1) {
						uv.y = Math.ceil(uv.y) - uv.y;
					} else {
						uv.y = uv.y - Math.floor(uv.y);
					}

					break;
			}
		}

		if (this.flipY) {
			uv.y = 1 - uv.y;
		}

		return uv;
	}

	set needsUpdate(value) {
		if (value === true) this.version++;
	}

}

Texture.DEFAULT_IMAGE = undefined;
Texture.DEFAULT_MAPPING = UVMapping;
Texture.prototype.isTexture = true;

function serializeImage(image) {
	if (typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement || typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap) {
		// default images
		return ImageUtils.getDataURL(image);
	} else {
		if (image.data) {
			// images of DataTexture
			return {
				data: Array.prototype.slice.call(image.data),
				width: image.width,
				height: image.height,
				type: image.data.constructor.name
			};
		} else {
			console.warn('THREE.Texture: Unable to serialize Texture.');
			return {};
		}
	}
}

class Vector4 {
	constructor(x = 0, y = 0, z = 0, w = 1) {
		this.x = x;
		this.y = y;
		this.z = z;
		this.w = w;
	}

	get width() {
		return this.z;
	}

	set width(value) {
		this.z = value;
	}

	get height() {
		return this.w;
	}

	set height(value) {
		this.w = value;
	}

	set(x, y, z, w) {
		this.x = x;
		this.y = y;
		this.z = z;
		this.w = w;
		return this;
	}

	setScalar(scalar) {
		this.x = scalar;
		this.y = scalar;
		this.z = scalar;
		this.w = scalar;
		return this;
	}

	setX(x) {
		this.x = x;
		return this;
	}

	setY(y) {
		this.y = y;
		return this;
	}

	setZ(z) {
		this.z = z;
		return this;
	}

	setW(w) {
		this.w = w;
		return this;
	}

	setComponent(index, value) {
		switch (index) {
			case 0:
				this.x = value;
				break;

			case 1:
				this.y = value;
				break;

			case 2:
				this.z = value;
				break;

			case 3:
				this.w = value;
				break;

			default:
				throw new Error('index is out of range: ' + index);
		}

		return this;
	}

	getComponent(index) {
		switch (index) {
			case 0:
				return this.x;

			case 1:
				return this.y;

			case 2:
				return this.z;

			case 3:
				return this.w;

			default:
				throw new Error('index is out of range: ' + index);
		}
	}

	clone() {
		return new this.constructor(this.x, this.y, this.z, this.w);
	}

	copy(v) {
		this.x = v.x;
		this.y = v.y;
		this.z = v.z;
		this.w = v.w !== undefined ? v.w : 1;
		return this;
	}

	add(v, w) {
		if (w !== undefined) {
			console.warn('THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');
			return this.addVectors(v, w);
		}

		this.x += v.x;
		this.y += v.y;
		this.z += v.z;
		this.w += v.w;
		return this;
	}

	addScalar(s) {
		this.x += s;
		this.y += s;
		this.z += s;
		this.w += s;
		return this;
	}

	addVectors(a, b) {
		this.x = a.x + b.x;
		this.y = a.y + b.y;
		this.z = a.z + b.z;
		this.w = a.w + b.w;
		return this;
	}

	addScaledVector(v, s) {
		this.x += v.x * s;
		this.y += v.y * s;
		this.z += v.z * s;
		this.w += v.w * s;
		return this;
	}

	sub(v, w) {
		if (w !== undefined) {
			console.warn('THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');
			return this.subVectors(v, w);
		}

		this.x -= v.x;
		this.y -= v.y;
		this.z -= v.z;
		this.w -= v.w;
		return this;
	}

	subScalar(s) {
		this.x -= s;
		this.y -= s;
		this.z -= s;
		this.w -= s;
		return this;
	}

	subVectors(a, b) {
		this.x = a.x - b.x;
		this.y = a.y - b.y;
		this.z = a.z - b.z;
		this.w = a.w - b.w;
		return this;
	}

	multiply(v) {
		this.x *= v.x;
		this.y *= v.y;
		this.z *= v.z;
		this.w *= v.w;
		return this;
	}

	multiplyScalar(scalar) {
		this.x *= scalar;
		this.y *= scalar;
		this.z *= scalar;
		this.w *= scalar;
		return this;
	}

	applyMatrix4(m) {
		const x = this.x,
					y = this.y,
					z = this.z,
					w = this.w;
		const e = m.elements;
		this.x = e[0] * x + e[4] * y + e[8] * z + e[12] * w;
		this.y = e[1] * x + e[5] * y + e[9] * z + e[13] * w;
		this.z = e[2] * x + e[6] * y + e[10] * z + e[14] * w;
		this.w = e[3] * x + e[7] * y + e[11] * z + e[15] * w;
		return this;
	}

	divideScalar(scalar) {
		return this.multiplyScalar(1 / scalar);
	}

	setAxisAngleFromQuaternion(q) {
		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm
		// q is assumed to be normalized
		this.w = 2 * Math.acos(q.w);
		const s = Math.sqrt(1 - q.w * q.w);

		if (s < 0.0001) {
			this.x = 1;
			this.y = 0;
			this.z = 0;
		} else {
			this.x = q.x / s;
			this.y = q.y / s;
			this.z = q.z / s;
		}

		return this;
	}

	setAxisAngleFromRotationMatrix(m) {
		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm
		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
		let angle, x, y, z; // variables for result

		const epsilon = 0.01,
					// margin to allow for rounding errors
		epsilon2 = 0.1,
					// margin to distinguish between 0 and 180 degrees
		te = m.elements,
					m11 = te[0],
					m12 = te[4],
					m13 = te[8],
					m21 = te[1],
					m22 = te[5],
					m23 = te[9],
					m31 = te[2],
					m32 = te[6],
					m33 = te[10];

		if (Math.abs(m12 - m21) < epsilon && Math.abs(m13 - m31) < epsilon && Math.abs(m23 - m32) < epsilon) {
			// singularity found
			// first check for identity matrix which must have +1 for all terms
			// in leading diagonal and zero in other terms
			if (Math.abs(m12 + m21) < epsilon2 && Math.abs(m13 + m31) < epsilon2 && Math.abs(m23 + m32) < epsilon2 && Math.abs(m11 + m22 + m33 - 3) < epsilon2) {
				// this singularity is identity matrix so angle = 0
				this.set(1, 0, 0, 0);
				return this; // zero angle, arbitrary axis
			} // otherwise this singularity is angle = 180


			angle = Math.PI;
			const xx = (m11 + 1) / 2;
			const yy = (m22 + 1) / 2;
			const zz = (m33 + 1) / 2;
			const xy = (m12 + m21) / 4;
			const xz = (m13 + m31) / 4;
			const yz = (m23 + m32) / 4;

			if (xx > yy && xx > zz) {
				// m11 is the largest diagonal term
				if (xx < epsilon) {
					x = 0;
					y = 0.707106781;
					z = 0.707106781;
				} else {
					x = Math.sqrt(xx);
					y = xy / x;
					z = xz / x;
				}
			} else if (yy > zz) {
				// m22 is the largest diagonal term
				if (yy < epsilon) {
					x = 0.707106781;
					y = 0;
					z = 0.707106781;
				} else {
					y = Math.sqrt(yy);
					x = xy / y;
					z = yz / y;
				}
			} else {
				// m33 is the largest diagonal term so base result on this
				if (zz < epsilon) {
					x = 0.707106781;
					y = 0.707106781;
					z = 0;
				} else {
					z = Math.sqrt(zz);
					x = xz / z;
					y = yz / z;
				}
			}

			this.set(x, y, z, angle);
			return this; // return 180 deg rotation
		} // as we have reached here there are no singularities so we can handle normally


		let s = Math.sqrt((m32 - m23) * (m32 - m23) + (m13 - m31) * (m13 - m31) + (m21 - m12) * (m21 - m12)); // used to normalize

		if (Math.abs(s) < 0.001) s = 1; // prevent divide by zero, should not happen if matrix is orthogonal and should be
		// caught by singularity test above, but I've left it in just in case

		this.x = (m32 - m23) / s;
		this.y = (m13 - m31) / s;
		this.z = (m21 - m12) / s;
		this.w = Math.acos((m11 + m22 + m33 - 1) / 2);
		return this;
	}

	min(v) {
		this.x = Math.min(this.x, v.x);
		this.y = Math.min(this.y, v.y);
		this.z = Math.min(this.z, v.z);
		this.w = Math.min(this.w, v.w);
		return this;
	}

	max(v) {
		this.x = Math.max(this.x, v.x);
		this.y = Math.max(this.y, v.y);
		this.z = Math.max(this.z, v.z);
		this.w = Math.max(this.w, v.w);
		return this;
	}

	clamp(min, max) {
		// assumes min < max, componentwise
		this.x = Math.max(min.x, Math.min(max.x, this.x));
		this.y = Math.max(min.y, Math.min(max.y, this.y));
		this.z = Math.max(min.z, Math.min(max.z, this.z));
		this.w = Math.max(min.w, Math.min(max.w, this.w));
		return this;
	}

	clampScalar(minVal, maxVal) {
		this.x = Math.max(minVal, Math.min(maxVal, this.x));
		this.y = Math.max(minVal, Math.min(maxVal, this.y));
		this.z = Math.max(minVal, Math.min(maxVal, this.z));
		this.w = Math.max(minVal, Math.min(maxVal, this.w));
		return this;
	}

	clampLength(min, max) {
		const length = this.length();
		return this.divideScalar(length || 1).multiplyScalar(Math.max(min, Math.min(max, length)));
	}

	floor() {
		this.x = Math.floor(this.x);
		this.y = Math.floor(this.y);
		this.z = Math.floor(this.z);
		this.w = Math.floor(this.w);
		return this;
	}

	ceil() {
		this.x = Math.ceil(this.x);
		this.y = Math.ceil(this.y);
		this.z = Math.ceil(this.z);
		this.w = Math.ceil(this.w);
		return this;
	}

	round() {
		this.x = Math.round(this.x);
		this.y = Math.round(this.y);
		this.z = Math.round(this.z);
		this.w = Math.round(this.w);
		return this;
	}

	roundToZero() {
		this.x = this.x < 0 ? Math.ceil(this.x) : Math.floor(this.x);
		this.y = this.y < 0 ? Math.ceil(this.y) : Math.floor(this.y);
		this.z = this.z < 0 ? Math.ceil(this.z) : Math.floor(this.z);
		this.w = this.w < 0 ? Math.ceil(this.w) : Math.floor(this.w);
		return this;
	}

	negate() {
		this.x = -this.x;
		this.y = -this.y;
		this.z = -this.z;
		this.w = -this.w;
		return this;
	}

	dot(v) {
		return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;
	}

	lengthSq() {
		return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;
	}

	length() {
		return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w);
	}

	manhattanLength() {
		return Math.abs(this.x) + Math.abs(this.y) + Math.abs(this.z) + Math.abs(this.w);
	}

	normalize() {
		return this.divideScalar(this.length() || 1);
	}

	setLength(length) {
		return this.normalize().multiplyScalar(length);
	}

	lerp(v, alpha) {
		this.x += (v.x - this.x) * alpha;
		this.y += (v.y - this.y) * alpha;
		this.z += (v.z - this.z) * alpha;
		this.w += (v.w - this.w) * alpha;
		return this;
	}

	lerpVectors(v1, v2, alpha) {
		this.x = v1.x + (v2.x - v1.x) * alpha;
		this.y = v1.y + (v2.y - v1.y) * alpha;
		this.z = v1.z + (v2.z - v1.z) * alpha;
		this.w = v1.w + (v2.w - v1.w) * alpha;
		return this;
	}

	equals(v) {
		return v.x === this.x && v.y === this.y && v.z === this.z && v.w === this.w;
	}

	fromArray(array, offset = 0) {
		this.x = array[offset];
		this.y = array[offset + 1];
		this.z = array[offset + 2];
		this.w = array[offset + 3];
		return this;
	}

	toArray(array = [], offset = 0) {
		array[offset] = this.x;
		array[offset + 1] = this.y;
		array[offset + 2] = this.z;
		array[offset + 3] = this.w;
		return array;
	}

	fromBufferAttribute(attribute, index, offset) {
		if (offset !== undefined) {
			console.warn('THREE.Vector4: offset has been removed from .fromBufferAttribute().');
		}

		this.x = attribute.getX(index);
		this.y = attribute.getY(index);
		this.z = attribute.getZ(index);
		this.w = attribute.getW(index);
		return this;
	}

	random() {
		this.x = Math.random();
		this.y = Math.random();
		this.z = Math.random();
		this.w = Math.random();
		return this;
	}

	*[Symbol.iterator]() {
		yield this.x;
		yield this.y;
		yield this.z;
		yield this.w;
	}

}

Vector4.prototype.isVector4 = true;

/*
 In options, we can specify:
 * Texture parameters for an auto-generated target texture
 * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
*/

class WebGLRenderTarget extends EventDispatcher {
	constructor(width, height, options = {}) {
		super();
		this.width = width;
		this.height = height;
		this.depth = 1;
		this.scissor = new Vector4(0, 0, width, height);
		this.scissorTest = false;
		this.viewport = new Vector4(0, 0, width, height);
		this.texture = new Texture(undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding);
		this.texture.isRenderTargetTexture = true;
		this.texture.image = {
			width: width,
			height: height,
			depth: 1
		};
		this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
		this.texture.internalFormat = options.internalFormat !== undefined ? options.internalFormat : null;
		this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;
		this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
		this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : false;
		this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;
	}

	setTexture(texture) {
		texture.image = {
			width: this.width,
			height: this.height,
			depth: this.depth
		};
		this.texture = texture;
	}

	setSize(width, height, depth = 1) {
		if (this.width !== width || this.height !== height || this.depth !== depth) {
			this.width = width;
			this.height = height;
			this.depth = depth;
			this.texture.image.width = width;
			this.texture.image.height = height;
			this.texture.image.depth = depth;
			this.dispose();
		}

		this.viewport.set(0, 0, width, height);
		this.scissor.set(0, 0, width, height);
	}

	clone() {
		return new this.constructor().copy(this);
	}

	copy(source) {
		this.width = source.width;
		this.height = source.height;
		this.depth = source.depth;
		this.viewport.copy(source.viewport);
		this.texture = source.texture.clone(); // ensure image object is not shared, see #20328

		this.texture.image = Object.assign({}, source.texture.image);
		this.depthBuffer = source.depthBuffer;
		this.stencilBuffer = source.stencilBuffer;
		this.depthTexture = source.depthTexture;
		return this;
	}

	dispose() {
		this.dispatchEvent({
			type: 'dispose'
		});
	}

}

WebGLRenderTarget.prototype.isWebGLRenderTarget = true;

class WebGLMultipleRenderTargets extends WebGLRenderTarget {
	constructor(width, height, count) {
		super(width, height);
		const texture = this.texture;
		this.texture = [];

		for (let i = 0; i < count; i++) {
			this.texture[i] = texture.clone();
		}
	}

	setSize(width, height, depth = 1) {
		if (this.width !== width || this.height !== height || this.depth !== depth) {
			this.width = width;
			this.height = height;
			this.depth = depth;

			for (let i = 0, il = this.texture.length; i < il; i++) {
				this.texture[i].image.width = width;
				this.texture[i].image.height = height;
				this.texture[i].image.depth = depth;
			}

			this.dispose();
		}

		this.viewport.set(0, 0, width, height);
		this.scissor.set(0, 0, width, height);
		return this;
	}

	copy(source) {
		this.dispose();
		this.width = source.width;
		this.height = source.height;
		this.depth = source.depth;
		this.viewport.set(0, 0, this.width, this.height);
		this.scissor.set(0, 0, this.width, this.height);
		this.depthBuffer = source.depthBuffer;
		this.stencilBuffer = source.stencilBuffer;
		this.depthTexture = source.depthTexture;
		this.texture.length = 0;

		for (let i = 0, il = source.texture.length; i < il; i++) {
			this.texture[i] = source.texture[i].clone();
		}

		return this;
	}

}

WebGLMultipleRenderTargets.prototype.isWebGLMultipleRenderTargets = true;

class WebGLMultisampleRenderTarget extends WebGLRenderTarget {
	constructor(width, height, options = {}) {
		super(width, height, options);
		this.samples = 4;
		this.ignoreDepthForMultisampleCopy = options.ignoreDepth !== undefined ? options.ignoreDepth : true;
		this.useRenderToTexture = options.useRenderToTexture !== undefined ? options.useRenderToTexture : false;
		this.useRenderbuffer = this.useRenderToTexture === false;
	}

	copy(source) {
		super.copy.call(this, source);
		this.samples = source.samples;
		this.useRenderToTexture = source.useRenderToTexture;
		this.useRenderbuffer = source.useRenderbuffer;
		return this;
	}

}

WebGLMultisampleRenderTarget.prototype.isWebGLMultisampleRenderTarget = true;

class Quaternion {
	constructor(x = 0, y = 0, z = 0, w = 1) {
		this._x = x;
		this._y = y;
		this._z = z;
		this._w = w;
	}

	static slerp(qa, qb, qm, t) {
		console.warn('THREE.Quaternion: Static .slerp() has been deprecated. Use qm.slerpQuaternions( qa, qb, t ) instead.');
		return qm.slerpQuaternions(qa, qb, t);
	}

	static slerpFlat(dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t) {
		// fuzz-free, array-based Quaternion SLERP operation
		let x0 = src0[srcOffset0 + 0],
				y0 = src0[srcOffset0 + 1],
				z0 = src0[srcOffset0 + 2],
				w0 = src0[srcOffset0 + 3];
		const x1 = src1[srcOffset1 + 0],
					y1 = src1[srcOffset1 + 1],
					z1 = src1[srcOffset1 + 2],
					w1 = src1[srcOffset1 + 3];

		if (t === 0) {
			dst[dstOffset + 0] = x0;
			dst[dstOffset + 1] = y0;
			dst[dstOffset + 2] = z0;
			dst[dstOffset + 3] = w0;
			return;
		}

		if (t === 1) {
			dst[dstOffset + 0] = x1;
			dst[dstOffset + 1] = y1;
			dst[dstOffset + 2] = z1;
			dst[dstOffset + 3] = w1;
			return;
		}

		if (w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1) {
			let s = 1 - t;
			const cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,
						dir = cos >= 0 ? 1 : -1,
						sqrSin = 1 - cos * cos; // Skip the Slerp for tiny steps to avoid numeric problems:

			if (sqrSin > Number.EPSILON) {
				const sin = Math.sqrt(sqrSin),
							len = Math.atan2(sin, cos * dir);
				s = Math.sin(s * len) / sin;
				t = Math.sin(t * len) / sin;
			}

			const tDir = t * dir;
			x0 = x0 * s + x1 * tDir;
			y0 = y0 * s + y1 * tDir;
			z0 = z0 * s + z1 * tDir;
			w0 = w0 * s + w1 * tDir; // Normalize in case we just did a lerp:

			if (s === 1 - t) {
				const f = 1 / Math.sqrt(x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0);
				x0 *= f;
				y0 *= f;
				z0 *= f;
				w0 *= f;
			}
		}

		dst[dstOffset] = x0;
		dst[dstOffset + 1] = y0;
		dst[dstOffset + 2] = z0;
		dst[dstOffset + 3] = w0;
	}

	static multiplyQuaternionsFlat(dst, dstOffset, src0, srcOffset0, src1, srcOffset1) {
		const x0 = src0[srcOffset0];
		const y0 = src0[srcOffset0 + 1];
		const z0 = src0[srcOffset0 + 2];
		const w0 = src0[srcOffset0 + 3];
		const x1 = src1[srcOffset1];
		const y1 = src1[srcOffset1 + 1];
		const z1 = src1[srcOffset1 + 2];
		const w1 = src1[srcOffset1 + 3];
		dst[dstOffset] = x0 * w1 + w0 * x1 + y0 * z1 - z0 * y1;
		dst[dstOffset + 1] = y0 * w1 + w0 * y1 + z0 * x1 - x0 * z1;
		dst[dstOffset + 2] = z0 * w1 + w0 * z1 + x0 * y1 - y0 * x1;
		dst[dstOffset + 3] = w0 * w1 - x0 * x1 - y0 * y1 - z0 * z1;
		return dst;
	}

	get x() {
		return this._x;
	}

	set x(value) {
		this._x = value;

		this._onChangeCallback();
	}

	get y() {
		return this._y;
	}

	set y(value) {
		this._y = value;

		this._onChangeCallback();
	}

	get z() {
		return this._z;
	}

	set z(value) {
		this._z = value;

		this._onChangeCallback();
	}

	get w() {
		return this._w;
	}

	set w(value) {
		this._w = value;

		this._onChangeCallback();
	}

	set(x, y, z, w) {
		this._x = x;
		this._y = y;
		this._z = z;
		this._w = w;

		this._onChangeCallback();

		return this;
	}

	clone() {
		return new this.constructor(this._x, this._y, this._z, this._w);
	}

	copy(quaternion) {
		this._x = quaternion.x;
		this._y = quaternion.y;
		this._z = quaternion.z;
		this._w = quaternion.w;

		this._onChangeCallback();

		return this;
	}

	setFromEuler(euler, update) {
		if (!(euler && euler.isEuler)) {
			throw new Error('THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.');
		}

		const x = euler._x,
					y = euler._y,
					z = euler._z,
					order = euler._order; // http://www.mathworks.com/matlabcentral/fileexchange/
		// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
		//	content/SpinCalc.m

		const cos = Math.cos;
		const sin = Math.sin;
		const c1 = cos(x / 2);
		const c2 = cos(y / 2);
		const c3 = cos(z / 2);
		const s1 = sin(x / 2);
		const s2 = sin(y / 2);
		const s3 = sin(z / 2);

		switch (order) {
			case 'XYZ':
				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;
				break;

			case 'YXZ':
				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;
				break;

			case 'ZXY':
				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;
				break;

			case 'ZYX':
				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;
				break;

			case 'YZX':
				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;
				break;

			case 'XZY':
				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;
				break;

			default:
				console.warn('THREE.Quaternion: .setFromEuler() encountered an unknown order: ' + order);
		}

		if (update !== false) this._onChangeCallback();
		return this;
	}

	setFromAxisAngle(axis, angle) {
		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
		// assumes axis is normalized
		const halfAngle = angle / 2,
					s = Math.sin(halfAngle);
		this._x = axis.x * s;
		this._y = axis.y * s;
		this._z = axis.z * s;
		this._w = Math.cos(halfAngle);

		this._onChangeCallback();

		return this;
	}

	setFromRotationMatrix(m) {
		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
		const te = m.elements,
					m11 = te[0],
					m12 = te[4],
					m13 = te[8],
					m21 = te[1],
					m22 = te[5],
					m23 = te[9],
					m31 = te[2],
					m32 = te[6],
					m33 = te[10],
					trace = m11 + m22 + m33;

		if (trace > 0) {
			const s = 0.5 / Math.sqrt(trace + 1.0);
			this._w = 0.25 / s;
			this._x = (m32 - m23) * s;
			this._y = (m13 - m31) * s;
			this._z = (m21 - m12) * s;
		} else if (m11 > m22 && m11 > m33) {
			const s = 2.0 * Math.sqrt(1.0 + m11 - m22 - m33);
			this._w = (m32 - m23) / s;
			this._x = 0.25 * s;
			this._y = (m12 + m21) / s;
			this._z = (m13 + m31) / s;
		} else if (m22 > m33) {
			const s = 2.0 * Math.sqrt(1.0 + m22 - m11 - m33);
			this._w = (m13 - m31) / s;
			this._x = (m12 + m21) / s;
			this._y = 0.25 * s;
			this._z = (m23 + m32) / s;
		} else {
			const s = 2.0 * Math.sqrt(1.0 + m33 - m11 - m22);
			this._w = (m21 - m12) / s;
			this._x = (m13 + m31) / s;
			this._y = (m23 + m32) / s;
			this._z = 0.25 * s;
		}

		this._onChangeCallback();

		return this;
	}

	setFromUnitVectors(vFrom, vTo) {
		// assumes direction vectors vFrom and vTo are normalized
		let r = vFrom.dot(vTo) + 1;

		if (r < Number.EPSILON) {
			// vFrom and vTo point in opposite directions
			r = 0;

			if (Math.abs(vFrom.x) > Math.abs(vFrom.z)) {
				this._x = -vFrom.y;
				this._y = vFrom.x;
				this._z = 0;
				this._w = r;
			} else {
				this._x = 0;
				this._y = -vFrom.z;
				this._z = vFrom.y;
				this._w = r;
			}
		} else {
			// crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3
			this._x = vFrom.y * vTo.z - vFrom.z * vTo.y;
			this._y = vFrom.z * vTo.x - vFrom.x * vTo.z;
			this._z = vFrom.x * vTo.y - vFrom.y * vTo.x;
			this._w = r;
		}

		return this.normalize();
	}

	angleTo(q) {
		return 2 * Math.acos(Math.abs(clamp(this.dot(q), -1, 1)));
	}

	rotateTowards(q, step) {
		const angle = this.angleTo(q);
		if (angle === 0) return this;
		const t = Math.min(1, step / angle);
		this.slerp(q, t);
		return this;
	}

	identity() {
		return this.set(0, 0, 0, 1);
	}

	invert() {
		// quaternion is assumed to have unit length
		return this.conjugate();
	}

	conjugate() {
		this._x *= -1;
		this._y *= -1;
		this._z *= -1;

		this._onChangeCallback();

		return this;
	}

	dot(v) {
		return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;
	}

	lengthSq() {
		return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;
	}

	length() {
		return Math.sqrt(this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w);
	}

	normalize() {
		let l = this.length();

		if (l === 0) {
			this._x = 0;
			this._y = 0;
			this._z = 0;
			this._w = 1;
		} else {
			l = 1 / l;
			this._x = this._x * l;
			this._y = this._y * l;
			this._z = this._z * l;
			this._w = this._w * l;
		}

		this._onChangeCallback();

		return this;
	}

	multiply(q, p) {
		if (p !== undefined) {
			console.warn('THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.');
			return this.multiplyQuaternions(q, p);
		}

		return this.multiplyQuaternions(this, q);
	}

	premultiply(q) {
		return this.multiplyQuaternions(q, this);
	}

	multiplyQuaternions(a, b) {
		// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
		const qax = a._x,
					qay = a._y,
					qaz = a._z,
					qaw = a._w;
		const qbx = b._x,
					qby = b._y,
					qbz = b._z,
					qbw = b._w;
		this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
		this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
		this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
		this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;

		this._onChangeCallback();

		return this;
	}

	slerp(qb, t) {
		if (t === 0) return this;
		if (t === 1) return this.copy(qb);
		const x = this._x,
					y = this._y,
					z = this._z,
					w = this._w; // http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/

		let cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;

		if (cosHalfTheta < 0) {
			this._w = -qb._w;
			this._x = -qb._x;
			this._y = -qb._y;
			this._z = -qb._z;
			cosHalfTheta = -cosHalfTheta;
		} else {
			this.copy(qb);
		}

		if (cosHalfTheta >= 1.0) {
			this._w = w;
			this._x = x;
			this._y = y;
			this._z = z;
			return this;
		}

		const sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;

		if (sqrSinHalfTheta <= Number.EPSILON) {
			const s = 1 - t;
			this._w = s * w + t * this._w;
			this._x = s * x + t * this._x;
			this._y = s * y + t * this._y;
			this._z = s * z + t * this._z;
			this.normalize();

			this._onChangeCallback();

			return this;
		}

		const sinHalfTheta = Math.sqrt(sqrSinHalfTheta);
		const halfTheta = Math.atan2(sinHalfTheta, cosHalfTheta);
		const ratioA = Math.sin((1 - t) * halfTheta) / sinHalfTheta,
					ratioB = Math.sin(t * halfTheta) / sinHalfTheta;
		this._w = w * ratioA + this._w * ratioB;
		this._x = x * ratioA + this._x * ratioB;
		this._y = y * ratioA + this._y * ratioB;
		this._z = z * ratioA + this._z * ratioB;

		this._onChangeCallback();

		return this;
	}

	slerpQuaternions(qa, qb, t) {
		return this.copy(qa).slerp(qb, t);
	}

	random() {
		// Derived from http://planning.cs.uiuc.edu/node198.html
		// Note, this source uses w, x, y, z ordering,
		// so we swap the order below.
		const u1 = Math.random();
		const sqrt1u1 = Math.sqrt(1 - u1);
		const sqrtu1 = Math.sqrt(u1);
		const u2 = 2 * Math.PI * Math.random();
		const u3 = 2 * Math.PI * Math.random();
		return this.set(sqrt1u1 * Math.cos(u2), sqrtu1 * Math.sin(u3), sqrtu1 * Math.cos(u3), sqrt1u1 * Math.sin(u2));
	}

	equals(quaternion) {
		return quaternion._x === this._x && quaternion._y === this._y && quaternion._z === this._z && quaternion._w === this._w;
	}

	fromArray(array, offset = 0) {
		this._x = array[offset];
		this._y = array[offset + 1];
		this._z = array[offset + 2];
		this._w = array[offset + 3];

		this._onChangeCallback();

		return this;
	}

	toArray(array = [], offset = 0) {
		array[offset] = this._x;
		array[offset + 1] = this._y;
		array[offset + 2] = this._z;
		array[offset + 3] = this._w;
		return array;
	}

	fromBufferAttribute(attribute, index) {
		this._x = attribute.getX(index);
		this._y = attribute.getY(index);
		this._z = attribute.getZ(index);
		this._w = attribute.getW(index);
		return this;
	}

	_onChange(callback) {
		this._onChangeCallback = callback;
		return this;
	}

	_onChangeCallback() {}

}

Quaternion.prototype.isQuaternion = true;

class Vector3 {
	constructor(x = 0, y = 0, z = 0) {
		this.x = x;
		this.y = y;
		this.z = z;
	}

	set(x, y, z) {
		if (z === undefined) z = this.z; // sprite.scale.set(x,y)

		this.x = x;
		this.y = y;
		this.z = z;
		return this;
	}

	setScalar(scalar) {
		this.x = scalar;
		this.y = scalar;
		this.z = scalar;
		return this;
	}

	setX(x) {
		this.x = x;
		return this;
	}

	setY(y) {
		this.y = y;
		return this;
	}

	setZ(z) {
		this.z = z;
		return this;
	}

	setComponent(index, value) {
		switch (index) {
			case 0:
				this.x = value;
				break;

			case 1:
				this.y = value;
				break;

			case 2:
				this.z = value;
				break;

			default:
				throw new Error('index is out of range: ' + index);
		}

		return this;
	}

	getComponent(index) {
		switch (index) {
			case 0:
				return this.x;

			case 1:
				return this.y;

			case 2:
				return this.z;

			default:
				throw new Error('index is out of range: ' + index);
		}
	}

	clone() {
		return new this.constructor(this.x, this.y, this.z);
	}

	copy(v) {
		this.x = v.x;
		this.y = v.y;
		this.z = v.z;
		return this;
	}

	add(v, w) {
		if (w !== undefined) {
			console.warn('THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');
			return this.addVectors(v, w);
		}

		this.x += v.x;
		this.y += v.y;
		this.z += v.z;
		return this;
	}

	addScalar(s) {
		this.x += s;
		this.y += s;
		this.z += s;
		return this;
	}

	addVectors(a, b) {
		this.x = a.x + b.x;
		this.y = a.y + b.y;
		this.z = a.z + b.z;
		return this;
	}

	addScaledVector(v, s) {
		this.x += v.x * s;
		this.y += v.y * s;
		this.z += v.z * s;
		return this;
	}

	sub(v, w) {
		if (w !== undefined) {
			console.warn('THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');
			return this.subVectors(v, w);
		}

		this.x -= v.x;
		this.y -= v.y;
		this.z -= v.z;
		return this;
	}

	subScalar(s) {
		this.x -= s;
		this.y -= s;
		this.z -= s;
		return this;
	}

	subVectors(a, b) {
		this.x = a.x - b.x;
		this.y = a.y - b.y;
		this.z = a.z - b.z;
		return this;
	}

	multiply(v, w) {
		if (w !== undefined) {
			console.warn('THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.');
			return this.multiplyVectors(v, w);
		}

		this.x *= v.x;
		this.y *= v.y;
		this.z *= v.z;
		return this;
	}

	multiplyScalar(scalar) {
		this.x *= scalar;
		this.y *= scalar;
		this.z *= scalar;
		return this;
	}

	multiplyVectors(a, b) {
		this.x = a.x * b.x;
		this.y = a.y * b.y;
		this.z = a.z * b.z;
		return this;
	}

	applyEuler(euler) {
		if (!(euler && euler.isEuler)) {
			console.error('THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.');
		}

		return this.applyQuaternion(_quaternion$4.setFromEuler(euler));
	}

	applyAxisAngle(axis, angle) {
		return this.applyQuaternion(_quaternion$4.setFromAxisAngle(axis, angle));
	}

	applyMatrix3(m) {
		const x = this.x,
					y = this.y,
					z = this.z;
		const e = m.elements;
		this.x = e[0] * x + e[3] * y + e[6] * z;
		this.y = e[1] * x + e[4] * y + e[7] * z;
		this.z = e[2] * x + e[5] * y + e[8] * z;
		return this;
	}

	applyNormalMatrix(m) {
		return this.applyMatrix3(m).normalize();
	}

	applyMatrix4(m) {
		const x = this.x,
					y = this.y,
					z = this.z;
		const e = m.elements;
		const w = 1 / (e[3] * x + e[7] * y + e[11] * z + e[15]);
		this.x = (e[0] * x + e[4] * y + e[8] * z + e[12]) * w;
		this.y = (e[1] * x + e[5] * y + e[9] * z + e[13]) * w;
		this.z = (e[2] * x + e[6] * y + e[10] * z + e[14]) * w;
		return this;
	}

	applyQuaternion(q) {
		const x = this.x,
					y = this.y,
					z = this.z;
		const qx = q.x,
					qy = q.y,
					qz = q.z,
					qw = q.w; // calculate quat * vector

		const ix = qw * x + qy * z - qz * y;
		const iy = qw * y + qz * x - qx * z;
		const iz = qw * z + qx * y - qy * x;
		const iw = -qx * x - qy * y - qz * z; // calculate result * inverse quat

		this.x = ix * qw + iw * -qx + iy * -qz - iz * -qy;
		this.y = iy * qw + iw * -qy + iz * -qx - ix * -qz;
		this.z = iz * qw + iw * -qz + ix * -qy - iy * -qx;
		return this;
	}

	project(camera) {
		return this.applyMatrix4(camera.matrixWorldInverse).applyMatrix4(camera.projectionMatrix);
	}

	unproject(camera) {
		return this.applyMatrix4(camera.projectionMatrixInverse).applyMatrix4(camera.matrixWorld);
	}

	transformDirection(m) {
		// input: THREE.Matrix4 affine matrix
		// vector interpreted as a direction
		const x = this.x,
					y = this.y,
					z = this.z;
		const e = m.elements;
		this.x = e[0] * x + e[4] * y + e[8] * z;
		this.y = e[1] * x + e[5] * y + e[9] * z;
		this.z = e[2] * x + e[6] * y + e[10] * z;
		return this.normalize();
	}

	divide(v) {
		this.x /= v.x;
		this.y /= v.y;
		this.z /= v.z;
		return this;
	}

	divideScalar(scalar) {
		return this.multiplyScalar(1 / scalar);
	}

	min(v) {
		this.x = Math.min(this.x, v.x);
		this.y = Math.min(this.y, v.y);
		this.z = Math.min(this.z, v.z);
		return this;
	}

	max(v) {
		this.x = Math.max(this.x, v.x);
		this.y = Math.max(this.y, v.y);
		this.z = Math.max(this.z, v.z);
		return this;
	}

	clamp(min, max) {
		// assumes min < max, componentwise
		this.x = Math.max(min.x, Math.min(max.x, this.x));
		this.y = Math.max(min.y, Math.min(max.y, this.y));
		this.z = Math.max(min.z, Math.min(max.z, this.z));
		return this;
	}

	clampScalar(minVal, maxVal) {
		this.x = Math.max(minVal, Math.min(maxVal, this.x));
		this.y = Math.max(minVal, Math.min(maxVal, this.y));
		this.z = Math.max(minVal, Math.min(maxVal, this.z));
		return this;
	}

	clampLength(min, max) {
		const length = this.length();
		return this.divideScalar(length || 1).multiplyScalar(Math.max(min, Math.min(max, length)));
	}

	floor() {
		this.x = Math.floor(this.x);
		this.y = Math.floor(this.y);
		this.z = Math.floor(this.z);
		return this;
	}

	ceil() {
		this.x = Math.ceil(this.x);
		this.y = Math.ceil(this.y);
		this.z = Math.ceil(this.z);
		return this;
	}

	round() {
		this.x = Math.round(this.x);
		this.y = Math.round(this.y);
		this.z = Math.round(this.z);
		return this;
	}

	roundToZero() {
		this.x = this.x < 0 ? Math.ceil(this.x) : Math.floor(this.x);
		this.y = this.y < 0 ? Math.ceil(this.y) : Math.floor(this.y);
		this.z = this.z < 0 ? Math.ceil(this.z) : Math.floor(this.z);
		return this;
	}

	negate() {
		this.x = -this.x;
		this.y = -this.y;
		this.z = -this.z;
		return this;
	}

	dot(v) {
		return this.x * v.x + this.y * v.y + this.z * v.z;
	} // TODO lengthSquared?


	lengthSq() {
		return this.x * this.x + this.y * this.y + this.z * this.z;
	}

	length() {
		return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
	}

	manhattanLength() {
		return Math.abs(this.x) + Math.abs(this.y) + Math.abs(this.z);
	}

	normalize() {
		return this.divideScalar(this.length() || 1);
	}

	setLength(length) {
		return this.normalize().multiplyScalar(length);
	}

	lerp(v, alpha) {
		this.x += (v.x - this.x) * alpha;
		this.y += (v.y - this.y) * alpha;
		this.z += (v.z - this.z) * alpha;
		return this;
	}

	lerpVectors(v1, v2, alpha) {
		this.x = v1.x + (v2.x - v1.x) * alpha;
		this.y = v1.y + (v2.y - v1.y) * alpha;
		this.z = v1.z + (v2.z - v1.z) * alpha;
		return this;
	}

	cross(v, w) {
		if (w !== undefined) {
			console.warn('THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.');
			return this.crossVectors(v, w);
		}

		return this.crossVectors(this, v);
	}

	crossVectors(a, b) {
		const ax = a.x,
					ay = a.y,
					az = a.z;
		const bx = b.x,
					by = b.y,
					bz = b.z;
		this.x = ay * bz - az * by;
		this.y = az * bx - ax * bz;
		this.z = ax * by - ay * bx;
		return this;
	}

	projectOnVector(v) {
		const denominator = v.lengthSq();
		if (denominator === 0) return this.set(0, 0, 0);
		const scalar = v.dot(this) / denominator;
		return this.copy(v).multiplyScalar(scalar);
	}

	projectOnPlane(planeNormal) {
		_vector$c.copy(this).projectOnVector(planeNormal);

		return this.sub(_vector$c);
	}

	reflect(normal) {
		// reflect incident vector off plane orthogonal to normal
		// normal is assumed to have unit length
		return this.sub(_vector$c.copy(normal).multiplyScalar(2 * this.dot(normal)));
	}

	angleTo(v) {
		const denominator = Math.sqrt(this.lengthSq() * v.lengthSq());
		if (denominator === 0) return Math.PI / 2;
		const theta = this.dot(v) / denominator; // clamp, to handle numerical problems

		return Math.acos(clamp(theta, -1, 1));
	}

	distanceTo(v) {
		return Math.sqrt(this.distanceToSquared(v));
	}

	distanceToSquared(v) {
		const dx = this.x - v.x,
					dy = this.y - v.y,
					dz = this.z - v.z;
		return dx * dx + dy * dy + dz * dz;
	}

	manhattanDistanceTo(v) {
		return Math.abs(this.x - v.x) + Math.abs(this.y - v.y) + Math.abs(this.z - v.z);
	}

	setFromSpherical(s) {
		return this.setFromSphericalCoords(s.radius, s.phi, s.theta);
	}

	setFromSphericalCoords(radius, phi, theta) {
		const sinPhiRadius = Math.sin(phi) * radius;
		this.x = sinPhiRadius * Math.sin(theta);
		this.y = Math.cos(phi) * radius;
		this.z = sinPhiRadius * Math.cos(theta);
		return this;
	}

	setFromCylindrical(c) {
		return this.setFromCylindricalCoords(c.radius, c.theta, c.y);
	}

	setFromCylindricalCoords(radius, theta, y) {
		this.x = radius * Math.sin(theta);
		this.y = y;
		this.z = radius * Math.cos(theta);
		return this;
	}

	setFromMatrixPosition(m) {
		const e = m.elements;
		this.x = e[12];
		this.y = e[13];
		this.z = e[14];
		return this;
	}

	setFromMatrixScale(m) {
		const sx = this.setFromMatrixColumn(m, 0).length();
		const sy = this.setFromMatrixColumn(m, 1).length();
		const sz = this.setFromMatrixColumn(m, 2).length();
		this.x = sx;
		this.y = sy;
		this.z = sz;
		return this;
	}

	setFromMatrixColumn(m, index) {
		return this.fromArray(m.elements, index * 4);
	}

	setFromMatrix3Column(m, index) {
		return this.fromArray(m.elements, index * 3);
	}

	equals(v) {
		return v.x === this.x && v.y === this.y && v.z === this.z;
	}

	fromArray(array, offset = 0) {
		this.x = array[offset];
		this.y = array[offset + 1];
		this.z = array[offset + 2];
		return this;
	}

	toArray(array = [], offset = 0) {
		array[offset] = this.x;
		array[offset + 1] = this.y;
		array[offset + 2] = this.z;
		return array;
	}

	fromBufferAttribute(attribute, index, offset) {
		if (offset !== undefined) {
			console.warn('THREE.Vector3: offset has been removed from .fromBufferAttribute().');
		}

		this.x = attribute.getX(index);
		this.y = attribute.getY(index);
		this.z = attribute.getZ(index);
		return this;
	}

	random() {
		this.x = Math.random();
		this.y = Math.random();
		this.z = Math.random();
		return this;
	}

	randomDirection() {
		// Derived from https://mathworld.wolfram.com/SpherePointPicking.html
		const u = (Math.random() - 0.5) * 2;
		const t = Math.random() * Math.PI * 2;
		const f = Math.sqrt(1 - u ** 2);
		this.x = f * Math.cos(t);
		this.y = f * Math.sin(t);
		this.z = u;
		return this;
	}

	*[Symbol.iterator]() {
		yield this.x;
		yield this.y;
		yield this.z;
	}

}

Vector3.prototype.isVector3 = true;

const _vector$c = /*@__PURE__*/new Vector3();

const _quaternion$4 = /*@__PURE__*/new Quaternion();

class Box3 {
	constructor(min = new Vector3(+Infinity, +Infinity, +Infinity), max = new Vector3(-Infinity, -Infinity, -Infinity)) {
		this.min = min;
		this.max = max;
	}

	set(min, max) {
		this.min.copy(min);
		this.max.copy(max);
		return this;
	}

	setFromArray(array) {
		let minX = +Infinity;
		let minY = +Infinity;
		let minZ = +Infinity;
		let maxX = -Infinity;
		let maxY = -Infinity;
		let maxZ = -Infinity;

		for (let i = 0, l = array.length; i < l; i += 3) {
			const x = array[i];
			const y = array[i + 1];
			const z = array[i + 2];
			if (x < minX) minX = x;
			if (y < minY) minY = y;
			if (z < minZ) minZ = z;
			if (x > maxX) maxX = x;
			if (y > maxY) maxY = y;
			if (z > maxZ) maxZ = z;
		}

		this.min.set(minX, minY, minZ);
		this.max.set(maxX, maxY, maxZ);
		return this;
	}

	setFromBufferAttribute(attribute) {
		let minX = +Infinity;
		let minY = +Infinity;
		let minZ = +Infinity;
		let maxX = -Infinity;
		let maxY = -Infinity;
		let maxZ = -Infinity;

		for (let i = 0, l = attribute.count; i < l; i++) {
			const x = attribute.getX(i);
			const y = attribute.getY(i);
			const z = attribute.getZ(i);
			if (x < minX) minX = x;
			if (y < minY) minY = y;
			if (z < minZ) minZ = z;
			if (x > maxX) maxX = x;
			if (y > maxY) maxY = y;
			if (z > maxZ) maxZ = z;
		}

		this.min.set(minX, minY, minZ);
		this.max.set(maxX, maxY, maxZ);
		return this;
	}

	setFromPoints(points) {
		this.makeEmpty();

		for (let i = 0, il = points.length; i < il; i++) {
			this.expandByPoint(points[i]);
		}

		return this;
	}

	setFromCenterAndSize(center, size) {
		const halfSize = _vector$b.copy(size).multiplyScalar(0.5);

		this.min.copy(center).sub(halfSize);
		this.max.copy(center).add(halfSize);
		return this;
	}

	setFromObject(object, precise = false) {
		this.makeEmpty();
		return this.expandByObject(object, precise);
	}

	clone() {
		return new this.constructor().copy(this);
	}

	copy(box) {
		this.min.copy(box.min);
		this.max.copy(box.max);
		return this;
	}

	makeEmpty() {
		this.min.x = this.min.y = this.min.z = +Infinity;
		this.max.x = this.max.y = this.max.z = -Infinity;
		return this;
	}

	isEmpty() {
		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
		return this.max.x < this.min.x || this.max.y < this.min.y || this.max.z < this.min.z;
	}

	getCenter(target) {
		return this.isEmpty() ? target.set(0, 0, 0) : target.addVectors(this.min, this.max).multiplyScalar(0.5);
	}

	getSize(target) {
		return this.isEmpty() ? target.set(0, 0, 0) : target.subVectors(this.max, this.min);
	}

	expandByPoint(point) {
		this.min.min(point);
		this.max.max(point);
		return this;
	}

	expandByVector(vector) {
		this.min.sub(vector);
		this.max.add(vector);
		return this;
	}

	expandByScalar(scalar) {
		this.min.addScalar(-scalar);
		this.max.addScalar(scalar);
		return this;
	}

	expandByObject(object, precise = false) {
		// Computes the world-axis-aligned bounding box of an object (including its children),
		// accounting for both the object's, and children's, world transforms
		object.updateWorldMatrix(false, false);
		const geometry = object.geometry;

		if (geometry !== undefined) {
			if (precise && geometry.attributes != undefined && geometry.attributes.position !== undefined) {
				const position = geometry.attributes.position;

				for (let i = 0, l = position.count; i < l; i++) {
					_vector$b.fromBufferAttribute(position, i).applyMatrix4(object.matrixWorld);

					this.expandByPoint(_vector$b);
				}
			} else {
				if (geometry.boundingBox === null) {
					geometry.computeBoundingBox();
				}

				_box$3.copy(geometry.boundingBox);

				_box$3.applyMatrix4(object.matrixWorld);

				this.union(_box$3);
			}
		}

		const children = object.children;

		for (let i = 0, l = children.length; i < l; i++) {
			this.expandByObject(children[i], precise);
		}

		return this;
	}

	containsPoint(point) {
		return point.x < this.min.x || point.x > this.max.x || point.y < this.min.y || point.y > this.max.y || point.z < this.min.z || point.z > this.max.z ? false : true;
	}

	containsBox(box) {
		return this.min.x <= box.min.x && box.max.x <= this.max.x && this.min.y <= box.min.y && box.max.y <= this.max.y && this.min.z <= box.min.z && box.max.z <= this.max.z;
	}

	getParameter(point, target) {
		// This can potentially have a divide by zero if the box
		// has a size dimension of 0.
		return target.set((point.x - this.min.x) / (this.max.x - this.min.x), (point.y - this.min.y) / (this.max.y - this.min.y), (point.z - this.min.z) / (this.max.z - this.min.z));
	}

	intersectsBox(box) {
		// using 6 splitting planes to rule out intersections.
		return box.max.x < this.min.x || box.min.x > this.max.x || box.max.y < this.min.y || box.min.y > this.max.y || box.max.z < this.min.z || box.min.z > this.max.z ? false : true;
	}

	intersectsSphere(sphere) {
		// Find the point on the AABB closest to the sphere center.
		this.clampPoint(sphere.center, _vector$b); // If that point is inside the sphere, the AABB and sphere intersect.

		return _vector$b.distanceToSquared(sphere.center) <= sphere.radius * sphere.radius;
	}

	intersectsPlane(plane) {
		// We compute the minimum and maximum dot product values. If those values
		// are on the same side (back or front) of the plane, then there is no intersection.
		let min, max;

		if (plane.normal.x > 0) {
			min = plane.normal.x * this.min.x;
			max = plane.normal.x * this.max.x;
		} else {
			min = plane.normal.x * this.max.x;
			max = plane.normal.x * this.min.x;
		}

		if (plane.normal.y > 0) {
			min += plane.normal.y * this.min.y;
			max += plane.normal.y * this.max.y;
		} else {
			min += plane.normal.y * this.max.y;
			max += plane.normal.y * this.min.y;
		}

		if (plane.normal.z > 0) {
			min += plane.normal.z * this.min.z;
			max += plane.normal.z * this.max.z;
		} else {
			min += plane.normal.z * this.max.z;
			max += plane.normal.z * this.min.z;
		}

		return min <= -plane.constant && max >= -plane.constant;
	}

	intersectsTriangle(triangle) {
		if (this.isEmpty()) {
			return false;
		} // compute box center and extents


		this.getCenter(_center);

		_extents.subVectors(this.max, _center); // translate triangle to aabb origin


		_v0$2.subVectors(triangle.a, _center);

		_v1$7.subVectors(triangle.b, _center);

		_v2$3.subVectors(triangle.c, _center); // compute edge vectors for triangle


		_f0.subVectors(_v1$7, _v0$2);

		_f1.subVectors(_v2$3, _v1$7);

		_f2.subVectors(_v0$2, _v2$3); // test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
		// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
		// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)


		let axes = [0, -_f0.z, _f0.y, 0, -_f1.z, _f1.y, 0, -_f2.z, _f2.y, _f0.z, 0, -_f0.x, _f1.z, 0, -_f1.x, _f2.z, 0, -_f2.x, -_f0.y, _f0.x, 0, -_f1.y, _f1.x, 0, -_f2.y, _f2.x, 0];

		if (!satForAxes(axes, _v0$2, _v1$7, _v2$3, _extents)) {
			return false;
		} // test 3 face normals from the aabb


		axes = [1, 0, 0, 0, 1, 0, 0, 0, 1];

		if (!satForAxes(axes, _v0$2, _v1$7, _v2$3, _extents)) {
			return false;
		} // finally testing the face normal of the triangle
		// use already existing triangle edge vectors here


		_triangleNormal.crossVectors(_f0, _f1);

		axes = [_triangleNormal.x, _triangleNormal.y, _triangleNormal.z];
		return satForAxes(axes, _v0$2, _v1$7, _v2$3, _extents);
	}

	clampPoint(point, target) {
		return target.copy(point).clamp(this.min, this.max);
	}

	distanceToPoint(point) {
		const clampedPoint = _vector$b.copy(point).clamp(this.min, this.max);

		return clampedPoint.sub(point).length();
	}

	getBoundingSphere(target) {
		this.getCenter(target.center);
		target.radius = this.getSize(_vector$b).length() * 0.5;
		return target;
	}

	intersect(box) {
		this.min.max(box.min);
		this.max.min(box.max); // ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.

		if (this.isEmpty()) this.makeEmpty();
		return this;
	}

	union(box) {
		this.min.min(box.min);
		this.max.max(box.max);
		return this;
	}

	applyMatrix4(matrix) {
		// transform of empty box is an empty box.
		if (this.isEmpty()) return this; // NOTE: I am using a binary pattern to specify all 2^3 combinations below

		_points[0].set(this.min.x, this.min.y, this.min.z).applyMatrix4(matrix); // 000


		_points[1].set(this.min.x, this.min.y, this.max.z).applyMatrix4(matrix); // 001


		_points[2].set(this.min.x, this.max.y, this.min.z).applyMatrix4(matrix); // 010


		_points[3].set(this.min.x, this.max.y, this.max.z).applyMatrix4(matrix); // 011


		_points[4].set(this.max.x, this.min.y, this.min.z).applyMatrix4(matrix); // 100


		_points[5].set(this.max.x, this.min.y, this.max.z).applyMatrix4(matrix); // 101


		_points[6].set(this.max.x, this.max.y, this.min.z).applyMatrix4(matrix); // 110


		_points[7].set(this.max.x, this.max.y, this.max.z).applyMatrix4(matrix); // 111


		this.setFromPoints(_points);
		return this;
	}

	translate(offset) {
		this.min.add(offset);
		this.max.add(offset);
		return this;
	}

	equals(box) {
		return box.min.equals(this.min) && box.max.equals(this.max);
	}

}

Box3.prototype.isBox3 = true;
const _points = [/*@__PURE__*/new Vector3(), /*@__PURE__*/new Vector3(), /*@__PURE__*/new Vector3(), /*@__PURE__*/new Vector3(), /*@__PURE__*/new Vector3(), /*@__PURE__*/new Vector3(), /*@__PURE__*/new Vector3(), /*@__PURE__*/new Vector3()];

const _vector$b = /*@__PURE__*/new Vector3();

const _box$3 = /*@__PURE__*/new Box3(); // triangle centered vertices


const _v0$2 = /*@__PURE__*/new Vector3();

const _v1$7 = /*@__PURE__*/new Vector3();

const _v2$3 = /*@__PURE__*/new Vector3(); // triangle edge vectors


const _f0 = /*@__PURE__*/new Vector3();

const _f1 = /*@__PURE__*/new Vector3();

const _f2 = /*@__PURE__*/new Vector3();

const _center = /*@__PURE__*/new Vector3();

const _extents = /*@__PURE__*/new Vector3();

const _triangleNormal = /*@__PURE__*/new Vector3();

const _testAxis = /*@__PURE__*/new Vector3();

function satForAxes(axes, v0, v1, v2, extents) {
	for (let i = 0, j = axes.length - 3; i <= j; i += 3) {
		_testAxis.fromArray(axes, i); // project the aabb onto the seperating axis


		const r = extents.x * Math.abs(_testAxis.x) + extents.y * Math.abs(_testAxis.y) + extents.z * Math.abs(_testAxis.z); // project all 3 vertices of the triangle onto the seperating axis

		const p0 = v0.dot(_testAxis);
		const p1 = v1.dot(_testAxis);
		const p2 = v2.dot(_testAxis); // actual test, basically see if either of the most extreme of the triangle points intersects r

		if (Math.max(-Math.max(p0, p1, p2), Math.min(p0, p1, p2)) > r) {
			// points of the projected triangle are outside the projected half-length of the aabb
			// the axis is seperating and we can exit
			return false;
		}
	}

	return true;
}

const _box$2 = /*@__PURE__*/new Box3();

const _v1$6 = /*@__PURE__*/new Vector3();

const _toFarthestPoint = /*@__PURE__*/new Vector3();

const _toPoint = /*@__PURE__*/new Vector3();

class Sphere {
	constructor(center = new Vector3(), radius = -1) {
		this.center = center;
		this.radius = radius;
	}

	set(center, radius) {
		this.center.copy(center);
		this.radius = radius;
		return this;
	}

	setFromPoints(points, optionalCenter) {
		const center = this.center;

		if (optionalCenter !== undefined) {
			center.copy(optionalCenter);
		} else {
			_box$2.setFromPoints(points).getCenter(center);
		}

		let maxRadiusSq = 0;

		for (let i = 0, il = points.length; i < il; i++) {
			maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(points[i]));
		}

		this.radius = Math.sqrt(maxRadiusSq);
		return this;
	}

	copy(sphere) {
		this.center.copy(sphere.center);
		this.radius = sphere.radius;
		return this;
	}

	isEmpty() {
		return this.radius < 0;
	}

	makeEmpty() {
		this.center.set(0, 0, 0);
		this.radius = -1;
		return this;
	}

	containsPoint(point) {
		return point.distanceToSquared(this.center) <= this.radius * this.radius;
	}

	distanceToPoint(point) {
		return point.distanceTo(this.center) - this.radius;
	}

	intersectsSphere(sphere) {
		const radiusSum = this.radius + sphere.radius;
		return sphere.center.distanceToSquared(this.center) <= radiusSum * radiusSum;
	}

	intersectsBox(box) {
		return box.intersectsSphere(this);
	}

	intersectsPlane(plane) {
		return Math.abs(plane.distanceToPoint(this.center)) <= this.radius;
	}

	clampPoint(point, target) {
		const deltaLengthSq = this.center.distanceToSquared(point);
		target.copy(point);

		if (deltaLengthSq > this.radius * this.radius) {
			target.sub(this.center).normalize();
			target.multiplyScalar(this.radius).add(this.center);
		}

		return target;
	}

	getBoundingBox(target) {
		if (this.isEmpty()) {
			// Empty sphere produces empty bounding box
			target.makeEmpty();
			return target;
		}

		target.set(this.center, this.center);
		target.expandByScalar(this.radius);
		return target;
	}

	applyMatrix4(matrix) {
		this.center.applyMatrix4(matrix);
		this.radius = this.radius * matrix.getMaxScaleOnAxis();
		return this;
	}

	translate(offset) {
		this.center.add(offset);
		return this;
	}

	expandByPoint(point) {
		// from https://github.com/juj/MathGeoLib/blob/2940b99b99cfe575dd45103ef20f4019dee15b54/src/Geometry/Sphere.cpp#L649-L671
		_toPoint.subVectors(point, this.center);

		const lengthSq = _toPoint.lengthSq();

		if (lengthSq > this.radius * this.radius) {
			const length = Math.sqrt(lengthSq);
			const missingRadiusHalf = (length - this.radius) * 0.5; // Nudge this sphere towards the target point. Add half the missing distance to radius,
			// and the other half to position. This gives a tighter enclosure, instead of if
			// the whole missing distance were just added to radius.

			this.center.add(_toPoint.multiplyScalar(missingRadiusHalf / length));
			this.radius += missingRadiusHalf;
		}

		return this;
	}

	union(sphere) {
		// from https://github.com/juj/MathGeoLib/blob/2940b99b99cfe575dd45103ef20f4019dee15b54/src/Geometry/Sphere.cpp#L759-L769
		// To enclose another sphere into this sphere, we only need to enclose two points:
		// 1) Enclose the farthest point on the other sphere into this sphere.
		// 2) Enclose the opposite point of the farthest point into this sphere.
		if (this.center.equals(sphere.center) === true) {
			_toFarthestPoint.set(0, 0, 1).multiplyScalar(sphere.radius);
		} else {
			_toFarthestPoint.subVectors(sphere.center, this.center).normalize().multiplyScalar(sphere.radius);
		}

		this.expandByPoint(_v1$6.copy(sphere.center).add(_toFarthestPoint));
		this.expandByPoint(_v1$6.copy(sphere.center).sub(_toFarthestPoint));
		return this;
	}

	equals(sphere) {
		return sphere.center.equals(this.center) && sphere.radius === this.radius;
	}

	clone() {
		return new this.constructor().copy(this);
	}

}

const _vector$a = /*@__PURE__*/new Vector3();

const _segCenter = /*@__PURE__*/new Vector3();

const _segDir = /*@__PURE__*/new Vector3();

const _diff = /*@__PURE__*/new Vector3();

const _edge1 = /*@__PURE__*/new Vector3();

const _edge2 = /*@__PURE__*/new Vector3();

const _normal$1 = /*@__PURE__*/new Vector3();

class Ray {
	constructor(origin = new Vector3(), direction = new Vector3(0, 0, -1)) {
		this.origin = origin;
		this.direction = direction;
	}

	set(origin, direction) {
		this.origin.copy(origin);
		this.direction.copy(direction);
		return this;
	}

	copy(ray) {
		this.origin.copy(ray.origin);
		this.direction.copy(ray.direction);
		return this;
	}

	at(t, target) {
		return target.copy(this.direction).multiplyScalar(t).add(this.origin);
	}

	lookAt(v) {
		this.direction.copy(v).sub(this.origin).normalize();
		return this;
	}

	recast(t) {
		this.origin.copy(this.at(t, _vector$a));
		return this;
	}

	closestPointToPoint(point, target) {
		target.subVectors(point, this.origin);
		const directionDistance = target.dot(this.direction);

		if (directionDistance < 0) {
			return target.copy(this.origin);
		}

		return target.copy(this.direction).multiplyScalar(directionDistance).add(this.origin);
	}

	distanceToPoint(point) {
		return Math.sqrt(this.distanceSqToPoint(point));
	}

	distanceSqToPoint(point) {
		const directionDistance = _vector$a.subVectors(point, this.origin).dot(this.direction); // point behind the ray


		if (directionDistance < 0) {
			return this.origin.distanceToSquared(point);
		}

		_vector$a.copy(this.direction).multiplyScalar(directionDistance).add(this.origin);

		return _vector$a.distanceToSquared(point);
	}

	distanceSqToSegment(v0, v1, optionalPointOnRay, optionalPointOnSegment) {
		// from https://github.com/pmjoniak/GeometricTools/blob/master/GTEngine/Include/Mathematics/GteDistRaySegment.h
		// It returns the min distance between the ray and the segment
		// defined by v0 and v1
		// It can also set two optional targets :
		// - The closest point on the ray
		// - The closest point on the segment
		_segCenter.copy(v0).add(v1).multiplyScalar(0.5);

		_segDir.copy(v1).sub(v0).normalize();

		_diff.copy(this.origin).sub(_segCenter);

		const segExtent = v0.distanceTo(v1) * 0.5;
		const a01 = -this.direction.dot(_segDir);

		const b0 = _diff.dot(this.direction);

		const b1 = -_diff.dot(_segDir);

		const c = _diff.lengthSq();

		const det = Math.abs(1 - a01 * a01);
		let s0, s1, sqrDist, extDet;

		if (det > 0) {
			// The ray and segment are not parallel.
			s0 = a01 * b1 - b0;
			s1 = a01 * b0 - b1;
			extDet = segExtent * det;

			if (s0 >= 0) {
				if (s1 >= -extDet) {
					if (s1 <= extDet) {
						// region 0
						// Minimum at interior points of ray and segment.
						const invDet = 1 / det;
						s0 *= invDet;
						s1 *= invDet;
						sqrDist = s0 * (s0 + a01 * s1 + 2 * b0) + s1 * (a01 * s0 + s1 + 2 * b1) + c;
					} else {
						// region 1
						s1 = segExtent;
						s0 = Math.max(0, -(a01 * s1 + b0));
						sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
					}
				} else {
					// region 5
					s1 = -segExtent;
					s0 = Math.max(0, -(a01 * s1 + b0));
					sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
				}
			} else {
				if (s1 <= -extDet) {
					// region 4
					s0 = Math.max(0, -(-a01 * segExtent + b0));
					s1 = s0 > 0 ? -segExtent : Math.min(Math.max(-segExtent, -b1), segExtent);
					sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
				} else if (s1 <= extDet) {
					// region 3
					s0 = 0;
					s1 = Math.min(Math.max(-segExtent, -b1), segExtent);
					sqrDist = s1 * (s1 + 2 * b1) + c;
				} else {
					// region 2
					s0 = Math.max(0, -(a01 * segExtent + b0));
					s1 = s0 > 0 ? segExtent : Math.min(Math.max(-segExtent, -b1), segExtent);
					sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
				}
			}
		} else {
			// Ray and segment are parallel.
			s1 = a01 > 0 ? -segExtent : segExtent;
			s0 = Math.max(0, -(a01 * s1 + b0));
			sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
		}

		if (optionalPointOnRay) {
			optionalPointOnRay.copy(this.direction).multiplyScalar(s0).add(this.origin);
		}

		if (optionalPointOnSegment) {
			optionalPointOnSegment.copy(_segDir).multiplyScalar(s1).add(_segCenter);
		}

		return sqrDist;
	}

	intersectSphere(sphere, target) {
		_vector$a.subVectors(sphere.center, this.origin);

		const tca = _vector$a.dot(this.direction);

		const d2 = _vector$a.dot(_vector$a) - tca * tca;
		const radius2 = sphere.radius * sphere.radius;
		if (d2 > radius2) return null;
		const thc = Math.sqrt(radius2 - d2); // t0 = first intersect point - entrance on front of sphere

		const t0 = tca - thc; // t1 = second intersect point - exit point on back of sphere

		const t1 = tca + thc; // test to see if both t0 and t1 are behind the ray - if so, return null

		if (t0 < 0 && t1 < 0) return null; // test to see if t0 is behind the ray:
		// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
		// in order to always return an intersect point that is in front of the ray.

		if (t0 < 0) return this.at(t1, target); // else t0 is in front of the ray, so return the first collision point scaled by t0

		return this.at(t0, target);
	}

	intersectsSphere(sphere) {
		return this.distanceSqToPoint(sphere.center) <= sphere.radius * sphere.radius;
	}

	distanceToPlane(plane) {
		const denominator = plane.normal.dot(this.direction);

		if (denominator === 0) {
			// line is coplanar, return origin
			if (plane.distanceToPoint(this.origin) === 0) {
				return 0;
			} // Null is preferable to undefined since undefined means.... it is undefined


			return null;
		}

		const t = -(this.origin.dot(plane.normal) + plane.constant) / denominator; // Return if the ray never intersects the plane

		return t >= 0 ? t : null;
	}

	intersectPlane(plane, target) {
		const t = this.distanceToPlane(plane);

		if (t === null) {
			return null;
		}

		return this.at(t, target);
	}

	intersectsPlane(plane) {
		// check if the ray lies on the plane first
		const distToPoint = plane.distanceToPoint(this.origin);

		if (distToPoint === 0) {
			return true;
		}

		const denominator = plane.normal.dot(this.direction);

		if (denominator * distToPoint < 0) {
			return true;
		} // ray origin is behind the plane (and is pointing behind it)


		return false;
	}

	intersectBox(box, target) {
		let tmin, tmax, tymin, tymax, tzmin, tzmax;
		const invdirx = 1 / this.direction.x,
					invdiry = 1 / this.direction.y,
					invdirz = 1 / this.direction.z;
		const origin = this.origin;

		if (invdirx >= 0) {
			tmin = (box.min.x - origin.x) * invdirx;
			tmax = (box.max.x - origin.x) * invdirx;
		} else {
			tmin = (box.max.x - origin.x) * invdirx;
			tmax = (box.min.x - origin.x) * invdirx;
		}

		if (invdiry >= 0) {
			tymin = (box.min.y - origin.y) * invdiry;
			tymax = (box.max.y - origin.y) * invdiry;
		} else {
			tymin = (box.max.y - origin.y) * invdiry;
			tymax = (box.min.y - origin.y) * invdiry;
		}

		if (tmin > tymax || tymin > tmax) return null; // These lines also handle the case where tmin or tmax is NaN
		// (result of 0 * Infinity). x !== x returns true if x is NaN

		if (tymin > tmin || tmin !== tmin) tmin = tymin;
		if (tymax < tmax || tmax !== tmax) tmax = tymax;

		if (invdirz >= 0) {
			tzmin = (box.min.z - origin.z) * invdirz;
			tzmax = (box.max.z - origin.z) * invdirz;
		} else {
			tzmin = (box.max.z - origin.z) * invdirz;
			tzmax = (box.min.z - origin.z) * invdirz;
		}

		if (tmin > tzmax || tzmin > tmax) return null;
		if (tzmin > tmin || tmin !== tmin) tmin = tzmin;
		if (tzmax < tmax || tmax !== tmax) tmax = tzmax; //return point closest to the ray (positive side)

		if (tmax < 0) return null;
		return this.at(tmin >= 0 ? tmin : tmax, target);
	}

	intersectsBox(box) {
		return this.intersectBox(box, _vector$a) !== null;
	}

	intersectTriangle(a, b, c, backfaceCulling, target) {
		// Compute the offset origin, edges, and normal.
		// from https://github.com/pmjoniak/GeometricTools/blob/master/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h
		_edge1.subVectors(b, a);

		_edge2.subVectors(c, a);

		_normal$1.crossVectors(_edge1, _edge2); // Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
		// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
		//	 |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
		//	 |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
		//	 |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)


		let DdN = this.direction.dot(_normal$1);
		let sign;

		if (DdN > 0) {
			if (backfaceCulling) return null;
			sign = 1;
		} else if (DdN < 0) {
			sign = -1;
			DdN = -DdN;
		} else {
			return null;
		}

		_diff.subVectors(this.origin, a);

		const DdQxE2 = sign * this.direction.dot(_edge2.crossVectors(_diff, _edge2)); // b1 < 0, no intersection

		if (DdQxE2 < 0) {
			return null;
		}

		const DdE1xQ = sign * this.direction.dot(_edge1.cross(_diff)); // b2 < 0, no intersection

		if (DdE1xQ < 0) {
			return null;
		} // b1+b2 > 1, no intersection


		if (DdQxE2 + DdE1xQ > DdN) {
			return null;
		} // Line intersects triangle, check if ray does.


		const QdN = -sign * _diff.dot(_normal$1); // t < 0, no intersection


		if (QdN < 0) {
			return null;
		} // Ray intersects triangle.


		return this.at(QdN / DdN, target);
	}

	applyMatrix4(matrix4) {
		this.origin.applyMatrix4(matrix4);
		this.direction.transformDirection(matrix4);
		return this;
	}

	equals(ray) {
		return ray.origin.equals(this.origin) && ray.direction.equals(this.direction);
	}

	clone() {
		return new this.constructor().copy(this);
	}

}

class Matrix4 {
	constructor() {
		this.elements = [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1];

		if (arguments.length > 0) {
			console.error('THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.');
		}
	}

	set(n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44) {
		const te = this.elements;
		te[0] = n11;
		te[4] = n12;
		te[8] = n13;
		te[12] = n14;
		te[1] = n21;
		te[5] = n22;
		te[9] = n23;
		te[13] = n24;
		te[2] = n31;
		te[6] = n32;
		te[10] = n33;
		te[14] = n34;
		te[3] = n41;
		te[7] = n42;
		te[11] = n43;
		te[15] = n44;
		return this;
	}

	identity() {
		this.set(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
		return this;
	}

	clone() {
		return new Matrix4().fromArray(this.elements);
	}

	copy(m) {
		const te = this.elements;
		const me = m.elements;
		te[0] = me[0];
		te[1] = me[1];
		te[2] = me[2];
		te[3] = me[3];
		te[4] = me[4];
		te[5] = me[5];
		te[6] = me[6];
		te[7] = me[7];
		te[8] = me[8];
		te[9] = me[9];
		te[10] = me[10];
		te[11] = me[11];
		te[12] = me[12];
		te[13] = me[13];
		te[14] = me[14];
		te[15] = me[15];
		return this;
	}

	copyPosition(m) {
		const te = this.elements,
					me = m.elements;
		te[12] = me[12];
		te[13] = me[13];
		te[14] = me[14];
		return this;
	}

	setFromMatrix3(m) {
		const me = m.elements;
		this.set(me[0], me[3], me[6], 0, me[1], me[4], me[7], 0, me[2], me[5], me[8], 0, 0, 0, 0, 1);
		return this;
	}

	extractBasis(xAxis, yAxis, zAxis) {
		xAxis.setFromMatrixColumn(this, 0);
		yAxis.setFromMatrixColumn(this, 1);
		zAxis.setFromMatrixColumn(this, 2);
		return this;
	}

	makeBasis(xAxis, yAxis, zAxis) {
		this.set(xAxis.x, yAxis.x, zAxis.x, 0, xAxis.y, yAxis.y, zAxis.y, 0, xAxis.z, yAxis.z, zAxis.z, 0, 0, 0, 0, 1);
		return this;
	}

	extractRotation(m) {
		// this method does not support reflection matrices
		const te = this.elements;
		const me = m.elements;

		const scaleX = 1 / _v1$5.setFromMatrixColumn(m, 0).length();

		const scaleY = 1 / _v1$5.setFromMatrixColumn(m, 1).length();

		const scaleZ = 1 / _v1$5.setFromMatrixColumn(m, 2).length();

		te[0] = me[0] * scaleX;
		te[1] = me[1] * scaleX;
		te[2] = me[2] * scaleX;
		te[3] = 0;
		te[4] = me[4] * scaleY;
		te[5] = me[5] * scaleY;
		te[6] = me[6] * scaleY;
		te[7] = 0;
		te[8] = me[8] * scaleZ;
		te[9] = me[9] * scaleZ;
		te[10] = me[10] * scaleZ;
		te[11] = 0;
		te[12] = 0;
		te[13] = 0;
		te[14] = 0;
		te[15] = 1;
		return this;
	}

	makeRotationFromEuler(euler) {
		if (!(euler && euler.isEuler)) {
			console.error('THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.');
		}

		const te = this.elements;
		const x = euler.x,
					y = euler.y,
					z = euler.z;
		const a = Math.cos(x),
					b = Math.sin(x);
		const c = Math.cos(y),
					d = Math.sin(y);
		const e = Math.cos(z),
					f = Math.sin(z);

		if (euler.order === 'XYZ') {
			const ae = a * e,
						af = a * f,
						be = b * e,
						bf = b * f;
			te[0] = c * e;
			te[4] = -c * f;
			te[8] = d;
			te[1] = af + be * d;
			te[5] = ae - bf * d;
			te[9] = -b * c;
			te[2] = bf - ae * d;
			te[6] = be + af * d;
			te[10] = a * c;
		} else if (euler.order === 'YXZ') {
			const ce = c * e,
						cf = c * f,
						de = d * e,
						df = d * f;
			te[0] = ce + df * b;
			te[4] = de * b - cf;
			te[8] = a * d;
			te[1] = a * f;
			te[5] = a * e;
			te[9] = -b;
			te[2] = cf * b - de;
			te[6] = df + ce * b;
			te[10] = a * c;
		} else if (euler.order === 'ZXY') {
			const ce = c * e,
						cf = c * f,
						de = d * e,
						df = d * f;
			te[0] = ce - df * b;
			te[4] = -a * f;
			te[8] = de + cf * b;
			te[1] = cf + de * b;
			te[5] = a * e;
			te[9] = df - ce * b;
			te[2] = -a * d;
			te[6] = b;
			te[10] = a * c;
		} else if (euler.order === 'ZYX') {
			const ae = a * e,
						af = a * f,
						be = b * e,
						bf = b * f;
			te[0] = c * e;
			te[4] = be * d - af;
			te[8] = ae * d + bf;
			te[1] = c * f;
			te[5] = bf * d + ae;
			te[9] = af * d - be;
			te[2] = -d;
			te[6] = b * c;
			te[10] = a * c;
		} else if (euler.order === 'YZX') {
			const ac = a * c,
						ad = a * d,
						bc = b * c,
						bd = b * d;
			te[0] = c * e;
			te[4] = bd - ac * f;
			te[8] = bc * f + ad;
			te[1] = f;
			te[5] = a * e;
			te[9] = -b * e;
			te[2] = -d * e;
			te[6] = ad * f + bc;
			te[10] = ac - bd * f;
		} else if (euler.order === 'XZY') {
			const ac = a * c,
						ad = a * d,
						bc = b * c,
						bd = b * d;
			te[0] = c * e;
			te[4] = -f;
			te[8] = d * e;
			te[1] = ac * f + bd;
			te[5] = a * e;
			te[9] = ad * f - bc;
			te[2] = bc * f - ad;
			te[6] = b * e;
			te[10] = bd * f + ac;
		} // bottom row


		te[3] = 0;
		te[7] = 0;
		te[11] = 0; // last column

		te[12] = 0;
		te[13] = 0;
		te[14] = 0;
		te[15] = 1;
		return this;
	}

	makeRotationFromQuaternion(q) {
		return this.compose(_zero, q, _one);
	}

	lookAt(eye, target, up) {
		const te = this.elements;

		_z.subVectors(eye, target);

		if (_z.lengthSq() === 0) {
			// eye and target are in the same position
			_z.z = 1;
		}

		_z.normalize();

		_x.crossVectors(up, _z);

		if (_x.lengthSq() === 0) {
			// up and z are parallel
			if (Math.abs(up.z) === 1) {
				_z.x += 0.0001;
			} else {
				_z.z += 0.0001;
			}

			_z.normalize();

			_x.crossVectors(up, _z);
		}

		_x.normalize();

		_y.crossVectors(_z, _x);

		te[0] = _x.x;
		te[4] = _y.x;
		te[8] = _z.x;
		te[1] = _x.y;
		te[5] = _y.y;
		te[9] = _z.y;
		te[2] = _x.z;
		te[6] = _y.z;
		te[10] = _z.z;
		return this;
	}

	multiply(m, n) {
		if (n !== undefined) {
			console.warn('THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.');
			return this.multiplyMatrices(m, n);
		}

		return this.multiplyMatrices(this, m);
	}

	premultiply(m) {
		return this.multiplyMatrices(m, this);
	}

	multiplyMatrices(a, b) {
		const ae = a.elements;
		const be = b.elements;
		const te = this.elements;
		const a11 = ae[0],
					a12 = ae[4],
					a13 = ae[8],
					a14 = ae[12];
		const a21 = ae[1],
					a22 = ae[5],
					a23 = ae[9],
					a24 = ae[13];
		const a31 = ae[2],
					a32 = ae[6],
					a33 = ae[10],
					a34 = ae[14];
		const a41 = ae[3],
					a42 = ae[7],
					a43 = ae[11],
					a44 = ae[15];
		const b11 = be[0],
					b12 = be[4],
					b13 = be[8],
					b14 = be[12];
		const b21 = be[1],
					b22 = be[5],
					b23 = be[9],
					b24 = be[13];
		const b31 = be[2],
					b32 = be[6],
					b33 = be[10],
					b34 = be[14];
		const b41 = be[3],
					b42 = be[7],
					b43 = be[11],
					b44 = be[15];
		te[0] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
		te[4] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
		te[8] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
		te[12] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;
		te[1] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
		te[5] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
		te[9] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
		te[13] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;
		te[2] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
		te[6] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
		te[10] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
		te[14] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;
		te[3] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
		te[7] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
		te[11] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
		te[15] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;
		return this;
	}

	multiplyScalar(s) {
		const te = this.elements;
		te[0] *= s;
		te[4] *= s;
		te[8] *= s;
		te[12] *= s;
		te[1] *= s;
		te[5] *= s;
		te[9] *= s;
		te[13] *= s;
		te[2] *= s;
		te[6] *= s;
		te[10] *= s;
		te[14] *= s;
		te[3] *= s;
		te[7] *= s;
		te[11] *= s;
		te[15] *= s;
		return this;
	}

	determinant() {
		const te = this.elements;
		const n11 = te[0],
					n12 = te[4],
					n13 = te[8],
					n14 = te[12];
		const n21 = te[1],
					n22 = te[5],
					n23 = te[9],
					n24 = te[13];
		const n31 = te[2],
					n32 = te[6],
					n33 = te[10],
					n34 = te[14];
		const n41 = te[3],
					n42 = te[7],
					n43 = te[11],
					n44 = te[15]; //TODO: make this more efficient
		//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )

		return n41 * (+n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34) + n42 * (+n11 * n23 * n34 - n11 * n24 * n33 + n14 * n21 * n33 - n13 * n21 * n34 + n13 * n24 * n31 - n14 * n23 * n31) + n43 * (+n11 * n24 * n32 - n11 * n22 * n34 - n14 * n21 * n32 + n12 * n21 * n34 + n14 * n22 * n31 - n12 * n24 * n31) + n44 * (-n13 * n22 * n31 - n11 * n23 * n32 + n11 * n22 * n33 + n13 * n21 * n32 - n12 * n21 * n33 + n12 * n23 * n31);
	}

	transpose() {
		const te = this.elements;
		let tmp;
		tmp = te[1];
		te[1] = te[4];
		te[4] = tmp;
		tmp = te[2];
		te[2] = te[8];
		te[8] = tmp;
		tmp = te[6];
		te[6] = te[9];
		te[9] = tmp;
		tmp = te[3];
		te[3] = te[12];
		te[12] = tmp;
		tmp = te[7];
		te[7] = te[13];
		te[13] = tmp;
		tmp = te[11];
		te[11] = te[14];
		te[14] = tmp;
		return this;
	}

	setPosition(x, y, z) {
		const te = this.elements;

		if (x.isVector3) {
			te[12] = x.x;
			te[13] = x.y;
			te[14] = x.z;
		} else {
			te[12] = x;
			te[13] = y;
			te[14] = z;
		}

		return this;
	}

	invert() {
		// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
		const te = this.elements,
					n11 = te[0],
					n21 = te[1],
					n31 = te[2],
					n41 = te[3],
					n12 = te[4],
					n22 = te[5],
					n32 = te[6],
					n42 = te[7],
					n13 = te[8],
					n23 = te[9],
					n33 = te[10],
					n43 = te[11],
					n14 = te[12],
					n24 = te[13],
					n34 = te[14],
					n44 = te[15],
					t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
					t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
					t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
					t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;
		const det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;
		if (det === 0) return this.set(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
		const detInv = 1 / det;
		te[0] = t11 * detInv;
		te[1] = (n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44) * detInv;
		te[2] = (n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44) * detInv;
		te[3] = (n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43) * detInv;
		te[4] = t12 * detInv;
		te[5] = (n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44) * detInv;
		te[6] = (n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44) * detInv;
		te[7] = (n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43) * detInv;
		te[8] = t13 * detInv;
		te[9] = (n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44) * detInv;
		te[10] = (n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44) * detInv;
		te[11] = (n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43) * detInv;
		te[12] = t14 * detInv;
		te[13] = (n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34) * detInv;
		te[14] = (n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34) * detInv;
		te[15] = (n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33) * detInv;
		return this;
	}

	scale(v) {
		const te = this.elements;
		const x = v.x,
					y = v.y,
					z = v.z;
		te[0] *= x;
		te[4] *= y;
		te[8] *= z;
		te[1] *= x;
		te[5] *= y;
		te[9] *= z;
		te[2] *= x;
		te[6] *= y;
		te[10] *= z;
		te[3] *= x;
		te[7] *= y;
		te[11] *= z;
		return this;
	}

	getMaxScaleOnAxis() {
		const te = this.elements;
		const scaleXSq = te[0] * te[0] + te[1] * te[1] + te[2] * te[2];
		const scaleYSq = te[4] * te[4] + te[5] * te[5] + te[6] * te[6];
		const scaleZSq = te[8] * te[8] + te[9] * te[9] + te[10] * te[10];
		return Math.sqrt(Math.max(scaleXSq, scaleYSq, scaleZSq));
	}

	makeTranslation(x, y, z) {
		this.set(1, 0, 0, x, 0, 1, 0, y, 0, 0, 1, z, 0, 0, 0, 1);
		return this;
	}

	makeRotationX(theta) {
		const c = Math.cos(theta),
					s = Math.sin(theta);
		this.set(1, 0, 0, 0, 0, c, -s, 0, 0, s, c, 0, 0, 0, 0, 1);
		return this;
	}

	makeRotationY(theta) {
		const c = Math.cos(theta),
					s = Math.sin(theta);
		this.set(c, 0, s, 0, 0, 1, 0, 0, -s, 0, c, 0, 0, 0, 0, 1);
		return this;
	}

	makeRotationZ(theta) {
		const c = Math.cos(theta),
					s = Math.sin(theta);
		this.set(c, -s, 0, 0, s, c, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
		return this;
	}

	makeRotationAxis(axis, angle) {
		// Based on http://www.gamedev.net/reference/articles/article1199.asp
		const c = Math.cos(angle);
		const s = Math.sin(angle);
		const t = 1 - c;
		const x = axis.x,
					y = axis.y,
					z = axis.z;
		const tx = t * x,
					ty = t * y;
		this.set(tx * x + c, tx * y - s * z, tx * z + s * y, 0, tx * y + s * z, ty * y + c, ty * z - s * x, 0, tx * z - s * y, ty * z + s * x, t * z * z + c, 0, 0, 0, 0, 1);
		return this;
	}

	makeScale(x, y, z) {
		this.set(x, 0, 0, 0, 0, y, 0, 0, 0, 0, z, 0, 0, 0, 0, 1);
		return this;
	}

	makeShear(xy, xz, yx, yz, zx, zy) {
		this.set(1, yx, zx, 0, xy, 1, zy, 0, xz, yz, 1, 0, 0, 0, 0, 1);
		return this;
	}

	compose(position, quaternion, scale) {
		const te = this.elements;
		const x = quaternion._x,
					y = quaternion._y,
					z = quaternion._z,
					w = quaternion._w;
		const x2 = x + x,
					y2 = y + y,
					z2 = z + z;
		const xx = x * x2,
					xy = x * y2,
					xz = x * z2;
		const yy = y * y2,
					yz = y * z2,
					zz = z * z2;
		const wx = w * x2,
					wy = w * y2,
					wz = w * z2;
		const sx = scale.x,
					sy = scale.y,
					sz = scale.z;
		te[0] = (1 - (yy + zz)) * sx;
		te[1] = (xy + wz) * sx;
		te[2] = (xz - wy) * sx;
		te[3] = 0;
		te[4] = (xy - wz) * sy;
		te[5] = (1 - (xx + zz)) * sy;
		te[6] = (yz + wx) * sy;
		te[7] = 0;
		te[8] = (xz + wy) * sz;
		te[9] = (yz - wx) * sz;
		te[10] = (1 - (xx + yy)) * sz;
		te[11] = 0;
		te[12] = position.x;
		te[13] = position.y;
		te[14] = position.z;
		te[15] = 1;
		return this;
	}

	decompose(position, quaternion, scale) {
		const te = this.elements;

		let sx = _v1$5.set(te[0], te[1], te[2]).length();

		const sy = _v1$5.set(te[4], te[5], te[6]).length();

		const sz = _v1$5.set(te[8], te[9], te[10]).length(); // if determine is negative, we need to invert one scale


		const det = this.determinant();
		if (det < 0) sx = -sx;
		position.x = te[12];
		position.y = te[13];
		position.z = te[14]; // scale the rotation part

		_m1$2.copy(this);

		const invSX = 1 / sx;
		const invSY = 1 / sy;
		const invSZ = 1 / sz;
		_m1$2.elements[0] *= invSX;
		_m1$2.elements[1] *= invSX;
		_m1$2.elements[2] *= invSX;
		_m1$2.elements[4] *= invSY;
		_m1$2.elements[5] *= invSY;
		_m1$2.elements[6] *= invSY;
		_m1$2.elements[8] *= invSZ;
		_m1$2.elements[9] *= invSZ;
		_m1$2.elements[10] *= invSZ;
		quaternion.setFromRotationMatrix(_m1$2);
		scale.x = sx;
		scale.y = sy;
		scale.z = sz;
		return this;
	}

	makePerspective(left, right, top, bottom, near, far) {
		if (far === undefined) {
			console.warn('THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.');
		}

		const te = this.elements;
		const x = 2 * near / (right - left);
		const y = 2 * near / (top - bottom);
		const a = (right + left) / (right - left);
		const b = (top + bottom) / (top - bottom);
		const c = -(far + near) / (far - near);
		const d = -2 * far * near / (far - near);
		te[0] = x;
		te[4] = 0;
		te[8] = a;
		te[12] = 0;
		te[1] = 0;
		te[5] = y;
		te[9] = b;
		te[13] = 0;
		te[2] = 0;
		te[6] = 0;
		te[10] = c;
		te[14] = d;
		te[3] = 0;
		te[7] = 0;
		te[11] = -1;
		te[15] = 0;
		return this;
	}

	makeOrthographic(left, right, top, bottom, near, far) {
		const te = this.elements;
		const w = 1.0 / (right - left);
		const h = 1.0 / (top - bottom);
		const p = 1.0 / (far - near);
		const x = (right + left) * w;
		const y = (top + bottom) * h;
		const z = (far + near) * p;
		te[0] = 2 * w;
		te[4] = 0;
		te[8] = 0;
		te[12] = -x;
		te[1] = 0;
		te[5] = 2 * h;
		te[9] = 0;
		te[13] = -y;
		te[2] = 0;
		te[6] = 0;
		te[10] = -2 * p;
		te[14] = -z;
		te[3] = 0;
		te[7] = 0;
		te[11] = 0;
		te[15] = 1;
		return this;
	}

	equals(matrix) {
		const te = this.elements;
		const me = matrix.elements;

		for (let i = 0; i < 16; i++) {
			if (te[i] !== me[i]) return false;
		}

		return true;
	}

	fromArray(array, offset = 0) {
		for (let i = 0; i < 16; i++) {
			this.elements[i] = array[i + offset];
		}

		return this;
	}

	toArray(array = [], offset = 0) {
		const te = this.elements;
		array[offset] = te[0];
		array[offset + 1] = te[1];
		array[offset + 2] = te[2];
		array[offset + 3] = te[3];
		array[offset + 4] = te[4];
		array[offset + 5] = te[5];
		array[offset + 6] = te[6];
		array[offset + 7] = te[7];
		array[offset + 8] = te[8];
		array[offset + 9] = te[9];
		array[offset + 10] = te[10];
		array[offset + 11] = te[11];
		array[offset + 12] = te[12];
		array[offset + 13] = te[13];
		array[offset + 14] = te[14];
		array[offset + 15] = te[15];
		return array;
	}

}

Matrix4.prototype.isMatrix4 = true;

const _v1$5 = /*@__PURE__*/new Vector3();

const _m1$2 = /*@__PURE__*/new Matrix4();

const _zero = /*@__PURE__*/new Vector3(0, 0, 0);

const _one = /*@__PURE__*/new Vector3(1, 1, 1);

const _x = /*@__PURE__*/new Vector3();

const _y = /*@__PURE__*/new Vector3();

const _z = /*@__PURE__*/new Vector3();

const _matrix$1 = /*@__PURE__*/new Matrix4();

const _quaternion$3 = /*@__PURE__*/new Quaternion();

class Euler {
	constructor(x = 0, y = 0, z = 0, order = Euler.DefaultOrder) {
		this._x = x;
		this._y = y;
		this._z = z;
		this._order = order;
	}

	get x() {
		return this._x;
	}

	set x(value) {
		this._x = value;

		this._onChangeCallback();
	}

	get y() {
		return this._y;
	}

	set y(value) {
		this._y = value;

		this._onChangeCallback();
	}

	get z() {
		return this._z;
	}

	set z(value) {
		this._z = value;

		this._onChangeCallback();
	}

	get order() {
		return this._order;
	}

	set order(value) {
		this._order = value;

		this._onChangeCallback();
	}

	set(x, y, z, order = this._order) {
		this._x = x;
		this._y = y;
		this._z = z;
		this._order = order;

		this._onChangeCallback();

		return this;
	}

	clone() {
		return new this.constructor(this._x, this._y, this._z, this._order);
	}

	copy(euler) {
		this._x = euler._x;
		this._y = euler._y;
		this._z = euler._z;
		this._order = euler._order;

		this._onChangeCallback();

		return this;
	}

	setFromRotationMatrix(m, order = this._order, update = true) {
		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
		const te = m.elements;
		const m11 = te[0],
					m12 = te[4],
					m13 = te[8];
		const m21 = te[1],
					m22 = te[5],
					m23 = te[9];
		const m31 = te[2],
					m32 = te[6],
					m33 = te[10];

		switch (order) {
			case 'XYZ':
				this._y = Math.asin(clamp(m13, -1, 1));

				if (Math.abs(m13) < 0.9999999) {
					this._x = Math.atan2(-m23, m33);
					this._z = Math.atan2(-m12, m11);
				} else {
					this._x = Math.atan2(m32, m22);
					this._z = 0;
				}

				break;

			case 'YXZ':
				this._x = Math.asin(-clamp(m23, -1, 1));

				if (Math.abs(m23) < 0.9999999) {
					this._y = Math.atan2(m13, m33);
					this._z = Math.atan2(m21, m22);
				} else {
					this._y = Math.atan2(-m31, m11);
					this._z = 0;
				}

				break;

			case 'ZXY':
				this._x = Math.asin(clamp(m32, -1, 1));

				if (Math.abs(m32) < 0.9999999) {
					this._y = Math.atan2(-m31, m33);
					this._z = Math.atan2(-m12, m22);
				} else {
					this._y = 0;
					this._z = Math.atan2(m21, m11);
				}

				break;

			case 'ZYX':
				this._y = Math.asin(-clamp(m31, -1, 1));

				if (Math.abs(m31) < 0.9999999) {
					this._x = Math.atan2(m32, m33);
					this._z = Math.atan2(m21, m11);
				} else {
					this._x = 0;
					this._z = Math.atan2(-m12, m22);
				}

				break;

			case 'YZX':
				this._z = Math.asin(clamp(m21, -1, 1));

				if (Math.abs(m21) < 0.9999999) {
					this._x = Math.atan2(-m23, m22);
					this._y = Math.atan2(-m31, m11);
				} else {
					this._x = 0;
					this._y = Math.atan2(m13, m33);
				}

				break;

			case 'XZY':
				this._z = Math.asin(-clamp(m12, -1, 1));

				if (Math.abs(m12) < 0.9999999) {
					this._x = Math.atan2(m32, m22);
					this._y = Math.atan2(m13, m11);
				} else {
					this._x = Math.atan2(-m23, m33);
					this._y = 0;
				}

				break;

			default:
				console.warn('THREE.Euler: .setFromRotationMatrix() encountered an unknown order: ' + order);
		}

		this._order = order;
		if (update === true) this._onChangeCallback();
		return this;
	}

	setFromQuaternion(q, order, update) {
		_matrix$1.makeRotationFromQuaternion(q);

		return this.setFromRotationMatrix(_matrix$1, order, update);
	}

	setFromVector3(v, order = this._order) {
		return this.set(v.x, v.y, v.z, order);
	}

	reorder(newOrder) {
		// WARNING: this discards revolution information -bhouston
		_quaternion$3.setFromEuler(this);

		return this.setFromQuaternion(_quaternion$3, newOrder);
	}

	equals(euler) {
		return euler._x === this._x && euler._y === this._y && euler._z === this._z && euler._order === this._order;
	}

	fromArray(array) {
		this._x = array[0];
		this._y = array[1];
		this._z = array[2];
		if (array[3] !== undefined) this._order = array[3];

		this._onChangeCallback();

		return this;
	}

	toArray(array = [], offset = 0) {
		array[offset] = this._x;
		array[offset + 1] = this._y;
		array[offset + 2] = this._z;
		array[offset + 3] = this._order;
		return array;
	}

	toVector3(optionalResult) {
		if (optionalResult) {
			return optionalResult.set(this._x, this._y, this._z);
		} else {
			return new Vector3(this._x, this._y, this._z);
		}
	}

	_onChange(callback) {
		this._onChangeCallback = callback;
		return this;
	}

	_onChangeCallback() {}

}

Euler.prototype.isEuler = true;
Euler.DefaultOrder = 'XYZ';
Euler.RotationOrders = ['XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX'];

class Layers {
	constructor() {
		this.mask = 1 | 0;
	}

	set(channel) {
		this.mask = (1 << channel | 0) >>> 0;
	}

	enable(channel) {
		this.mask |= 1 << channel | 0;
	}

	enableAll() {
		this.mask = 0xffffffff | 0;
	}

	toggle(channel) {
		this.mask ^= 1 << channel | 0;
	}

	disable(channel) {
		this.mask &= ~(1 << channel | 0);
	}

	disableAll() {
		this.mask = 0;
	}

	test(layers) {
		return (this.mask & layers.mask) !== 0;
	}

	isEnabled(channel) {
		return (this.mask & (1 << channel | 0)) !== 0;
	}

}

let _object3DId = 0;

const _v1$4 = /*@__PURE__*/new Vector3();

const _q1 = /*@__PURE__*/new Quaternion();

const _m1$1 = /*@__PURE__*/new Matrix4();

const _target = /*@__PURE__*/new Vector3();

const _position$3 = /*@__PURE__*/new Vector3();

const _scale$2 = /*@__PURE__*/new Vector3();

const _quaternion$2 = /*@__PURE__*/new Quaternion();

const _xAxis = /*@__PURE__*/new Vector3(1, 0, 0);

const _yAxis = /*@__PURE__*/new Vector3(0, 1, 0);

const _zAxis = /*@__PURE__*/new Vector3(0, 0, 1);

const _addedEvent = {
	type: 'added'
};
const _removedEvent = {
	type: 'removed'
};

class Object3D extends EventDispatcher {
	constructor() {
		super();
		Object.defineProperty(this, 'id', {
			value: _object3DId++
		});
		this.uuid = generateUUID();
		this.name = '';
		this.type = 'Object3D';
		this.parent = null;
		this.children = [];
		this.up = Object3D.DefaultUp.clone();
		const position = new Vector3();
		const rotation = new Euler();
		const quaternion = new Quaternion();
		const scale = new Vector3(1, 1, 1);

		function onRotationChange() {
			quaternion.setFromEuler(rotation, false);
		}

		function onQuaternionChange() {
			rotation.setFromQuaternion(quaternion, undefined, false);
		}

		rotation._onChange(onRotationChange);

		quaternion._onChange(onQuaternionChange);

		Object.defineProperties(this, {
			position: {
				configurable: true,
				enumerable: true,
				value: position
			},
			rotation: {
				configurable: true,
				enumerable: true,
				value: rotation
			},
			quaternion: {
				configurable: true,
				enumerable: true,
				value: quaternion
			},
			scale: {
				configurable: true,
				enumerable: true,
				value: scale
			},
			modelViewMatrix: {
				value: new Matrix4()
			},
			normalMatrix: {
				value: new Matrix3()
			}
		});
		this.matrix = new Matrix4();
		this.matrixWorld = new Matrix4();
		this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
		this.matrixWorldNeedsUpdate = false;
		this.layers = new Layers();
		this.visible = true;
		this.castShadow = false;
		this.receiveShadow = false;
		this.frustumCulled = true;
		this.renderOrder = 0;
		this.animations = [];
		this.userData = {};
	}

	onBeforeRender() {}

	onAfterRender() {}

	applyMatrix4(matrix) {
		if (this.matrixAutoUpdate) this.updateMatrix();
		this.matrix.premultiply(matrix);
		this.matrix.decompose(this.position, this.quaternion, this.scale);
	}

	applyQuaternion(q) {
		this.quaternion.premultiply(q);
		return this;
	}

	setRotationFromAxisAngle(axis, angle) {
		// assumes axis is normalized
		this.quaternion.setFromAxisAngle(axis, angle);
	}

	setRotationFromEuler(euler) {
		this.quaternion.setFromEuler(euler, true);
	}

	setRotationFromMatrix(m) {
		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
		this.quaternion.setFromRotationMatrix(m);
	}

	setRotationFromQuaternion(q) {
		// assumes q is normalized
		this.quaternion.copy(q);
	}

	rotateOnAxis(axis, angle) {
		// rotate object on axis in object space
		// axis is assumed to be normalized
		_q1.setFromAxisAngle(axis, angle);

		this.quaternion.multiply(_q1);
		return this;
	}

	rotateOnWorldAxis(axis, angle) {
		// rotate object on axis in world space
		// axis is assumed to be normalized
		// method assumes no rotated parent
		_q1.setFromAxisAngle(axis, angle);

		this.quaternion.premultiply(_q1);
		return this;
	}

	rotateX(angle) {
		return this.rotateOnAxis(_xAxis, angle);
	}

	rotateY(angle) {
		return this.rotateOnAxis(_yAxis, angle);
	}

	rotateZ(angle) {
		return this.rotateOnAxis(_zAxis, angle);
	}

	translateOnAxis(axis, distance) {
		// translate object by distance along axis in object space
		// axis is assumed to be normalized
		_v1$4.copy(axis).applyQuaternion(this.quaternion);

		this.position.add(_v1$4.multiplyScalar(distance));
		return this;
	}

	translateX(distance) {
		return this.translateOnAxis(_xAxis, distance);
	}

	translateY(distance) {
		return this.translateOnAxis(_yAxis, distance);
	}

	translateZ(distance) {
		return this.translateOnAxis(_zAxis, distance);
	}

	localToWorld(vector) {
		return vector.applyMatrix4(this.matrixWorld);
	}

	worldToLocal(vector) {
		return vector.applyMatrix4(_m1$1.copy(this.matrixWorld).invert());
	}

	lookAt(x, y, z) {
		// This method does not support objects having non-uniformly-scaled parent(s)
		if (x.isVector3) {
			_target.copy(x);
		} else {
			_target.set(x, y, z);
		}

		const parent = this.parent;
		this.updateWorldMatrix(true, false);

		_position$3.setFromMatrixPosition(this.matrixWorld);

		if (this.isCamera || this.isLight) {
			_m1$1.lookAt(_position$3, _target, this.up);
		} else {
			_m1$1.lookAt(_target, _position$3, this.up);
		}

		this.quaternion.setFromRotationMatrix(_m1$1);

		if (parent) {
			_m1$1.extractRotation(parent.matrixWorld);

			_q1.setFromRotationMatrix(_m1$1);

			this.quaternion.premultiply(_q1.invert());
		}
	}

	add(object) {
		if (arguments.length > 1) {
			for (let i = 0; i < arguments.length; i++) {
				this.add(arguments[i]);
			}

			return this;
		}

		if (object === this) {
			console.error('THREE.Object3D.add: object can\'t be added as a child of itself.', object);
			return this;
		}

		if (object && object.isObject3D) {
			if (object.parent !== null) {
				object.parent.remove(object);
			}

			object.parent = this;
			this.children.push(object);
			object.dispatchEvent(_addedEvent);
		} else {
			console.error('THREE.Object3D.add: object not an instance of THREE.Object3D.', object);
		}

		return this;
	}

	remove(object) {
		if (arguments.length > 1) {
			for (let i = 0; i < arguments.length; i++) {
				this.remove(arguments[i]);
			}

			return this;
		}

		const index = this.children.indexOf(object);

		if (index !== -1) {
			object.parent = null;
			this.children.splice(index, 1);
			object.dispatchEvent(_removedEvent);
		}

		return this;
	}

	removeFromParent() {
		const parent = this.parent;

		if (parent !== null) {
			parent.remove(this);
		}

		return this;
	}

	clear() {
		for (let i = 0; i < this.children.length; i++) {
			const object = this.children[i];
			object.parent = null;
			object.dispatchEvent(_removedEvent);
		}

		this.children.length = 0;
		return this;
	}

	attach(object) {
		// adds object as a child of this, while maintaining the object's world transform
		// Note: This method does not support scene graphs having non-uniformly-scaled nodes(s)
		this.updateWorldMatrix(true, false);

		_m1$1.copy(this.matrixWorld).invert();

		if (object.parent !== null) {
			object.parent.updateWorldMatrix(true, false);

			_m1$1.multiply(object.parent.matrixWorld);
		}

		object.applyMatrix4(_m1$1);
		this.add(object);
		object.updateWorldMatrix(false, true);
		return this;
	}

	getObjectById(id) {
		return this.getObjectByProperty('id', id);
	}

	getObjectByName(name) {
		return this.getObjectByProperty('name', name);
	}

	getObjectByProperty(name, value) {
		if (this[name] === value) return this;

		for (let i = 0, l = this.children.length; i < l; i++) {
			const child = this.children[i];
			const object = child.getObjectByProperty(name, value);

			if (object !== undefined) {
				return object;
			}
		}

		return undefined;
	}

	getWorldPosition(target) {
		this.updateWorldMatrix(true, false);
		return target.setFromMatrixPosition(this.matrixWorld);
	}

	getWorldQuaternion(target) {
		this.updateWorldMatrix(true, false);
		this.matrixWorld.decompose(_position$3, target, _scale$2);
		return target;
	}

	getWorldScale(target) {
		this.updateWorldMatrix(true, false);
		this.matrixWorld.decompose(_position$3, _quaternion$2, target);
		return target;
	}

	getWorldDirection(target) {
		this.updateWorldMatrix(true, false);
		const e = this.matrixWorld.elements;
		return target.set(e[8], e[9], e[10]).normalize();
	}

	raycast() {}

	traverse(callback) {
		callback(this);
		const children = this.children;

		for (let i = 0, l = children.length; i < l; i++) {
			children[i].traverse(callback);
		}
	}

	traverseVisible(callback) {
		if (this.visible === false) return;
		callback(this);
		const children = this.children;

		for (let i = 0, l = children.length; i < l; i++) {
			children[i].traverseVisible(callback);
		}
	}

	traverseAncestors(callback) {
		const parent = this.parent;

		if (parent !== null) {
			callback(parent);
			parent.traverseAncestors(callback);
		}
	}

	updateMatrix() {
		this.matrix.compose(this.position, this.quaternion, this.scale);
		this.matrixWorldNeedsUpdate = true;
	}

	updateMatrixWorld(force) {
		if (this.matrixAutoUpdate) this.updateMatrix();

		if (this.matrixWorldNeedsUpdate || force) {
			if (this.parent === null) {
				this.matrixWorld.copy(this.matrix);
			} else {
				this.matrixWorld.multiplyMatrices(this.parent.matrixWorld, this.matrix);
			}

			this.matrixWorldNeedsUpdate = false;
			force = true;
		} // update children


		const children = this.children;

		for (let i = 0, l = children.length; i < l; i++) {
			children[i].updateMatrixWorld(force);
		}
	}

	updateWorldMatrix(updateParents, updateChildren) {
		const parent = this.parent;

		if (updateParents === true && parent !== null) {
			parent.updateWorldMatrix(true, false);
		}

		if (this.matrixAutoUpdate) this.updateMatrix();

		if (this.parent === null) {
			this.matrixWorld.copy(this.matrix);
		} else {
			this.matrixWorld.multiplyMatrices(this.parent.matrixWorld, this.matrix);
		} // update children


		if (updateChildren === true) {
			const children = this.children;

			for (let i = 0, l = children.length; i < l; i++) {
				children[i].updateWorldMatrix(false, true);
			}
		}
	}

	toJSON(meta) {
		// meta is a string when called from JSON.stringify
		const isRootObject = meta === undefined || typeof meta === 'string';
		const output = {}; // meta is a hash used to collect geometries, materials.
		// not providing it implies that this is the root object
		// being serialized.

		if (isRootObject) {
			// initialize meta obj
			meta = {
				geometries: {},
				materials: {},
				textures: {},
				images: {},
				shapes: {},
				skeletons: {},
				animations: {}
			};
			output.metadata = {
				version: 4.5,
				type: 'Object',
				generator: 'Object3D.toJSON'
			};
		} // standard Object3D serialization


		const object = {};
		object.uuid = this.uuid;
		object.type = this.type;
		if (this.name !== '') object.name = this.name;
		if (this.castShadow === true) object.castShadow = true;
		if (this.receiveShadow === true) object.receiveShadow = true;
		if (this.visible === false) object.visible = false;
		if (this.frustumCulled === false) object.frustumCulled = false;
		if (this.renderOrder !== 0) object.renderOrder = this.renderOrder;
		if (JSON.stringify(this.userData) !== '{}') object.userData = this.userData;
		object.layers = this.layers.mask;
		object.matrix = this.matrix.toArray();
		if (this.matrixAutoUpdate === false) object.matrixAutoUpdate = false; // object specific properties

		if (this.isInstancedMesh) {
			object.type = 'InstancedMesh';
			object.count = this.count;
			object.instanceMatrix = this.instanceMatrix.toJSON();
			if (this.instanceColor !== null) object.instanceColor = this.instanceColor.toJSON();
		} //


		function serialize(library, element) {
			if (library[element.uuid] === undefined) {
				library[element.uuid] = element.toJSON(meta);
			}

			return element.uuid;
		}

		if (this.isScene) {
			if (this.background) {
				if (this.background.isColor) {
					object.background = this.background.toJSON();
				} else if (this.background.isTexture) {
					object.background = this.background.toJSON(meta).uuid;
				}
			}

			if (this.environment && this.environment.isTexture) {
				object.environment = this.environment.toJSON(meta).uuid;
			}
		} else if (this.isMesh || this.isLine || this.isPoints) {
			object.geometry = serialize(meta.geometries, this.geometry);
			const parameters = this.geometry.parameters;

			if (parameters !== undefined && parameters.shapes !== undefined) {
				const shapes = parameters.shapes;

				if (Array.isArray(shapes)) {
					for (let i = 0, l = shapes.length; i < l; i++) {
						const shape = shapes[i];
						serialize(meta.shapes, shape);
					}
				} else {
					serialize(meta.shapes, shapes);
				}
			}
		}

		if (this.isSkinnedMesh) {
			object.bindMode = this.bindMode;
			object.bindMatrix = this.bindMatrix.toArray();

			if (this.skeleton !== undefined) {
				serialize(meta.skeletons, this.skeleton);
				object.skeleton = this.skeleton.uuid;
			}
		}

		if (this.material !== undefined) {
			if (Array.isArray(this.material)) {
				const uuids = [];

				for (let i = 0, l = this.material.length; i < l; i++) {
					uuids.push(serialize(meta.materials, this.material[i]));
				}

				object.material = uuids;
			} else {
				object.material = serialize(meta.materials, this.material);
			}
		} //


		if (this.children.length > 0) {
			object.children = [];

			for (let i = 0; i < this.children.length; i++) {
				object.children.push(this.children[i].toJSON(meta).object);
			}
		} //


		if (this.animations.length > 0) {
			object.animations = [];

			for (let i = 0; i < this.animations.length; i++) {
				const animation = this.animations[i];
				object.animations.push(serialize(meta.animations, animation));
			}
		}

		if (isRootObject) {
			const geometries = extractFromCache(meta.geometries);
			const materials = extractFromCache(meta.materials);
			const textures = extractFromCache(meta.textures);
			const images = extractFromCache(meta.images);
			const shapes = extractFromCache(meta.shapes);
			const skeletons = extractFromCache(meta.skeletons);
			const animations = extractFromCache(meta.animations);
			if (geometries.length > 0) output.geometries = geometries;
			if (materials.length > 0) output.materials = materials;
			if (textures.length > 0) output.textures = textures;
			if (images.length > 0) output.images = images;
			if (shapes.length > 0) output.shapes = shapes;
			if (skeletons.length > 0) output.skeletons = skeletons;
			if (animations.length > 0) output.animations = animations;
		}

		output.object = object;
		return output; // extract data from the cache hash
		// remove metadata on each item
		// and return as array

		function extractFromCache(cache) {
			const values = [];

			for (const key in cache) {
				const data = cache[key];
				delete data.metadata;
				values.push(data);
			}

			return values;
		}
	}

	clone(recursive) {
		return new this.constructor().copy(this, recursive);
	}

	copy(source, recursive = true) {
		this.name = source.name;
		this.up.copy(source.up);
		this.position.copy(source.position);
		this.rotation.order = source.rotation.order;
		this.quaternion.copy(source.quaternion);
		this.scale.copy(source.scale);
		this.matrix.copy(source.matrix);
		this.matrixWorld.copy(source.matrixWorld);
		this.matrixAutoUpdate = source.matrixAutoUpdate;
		this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;
		this.layers.mask = source.layers.mask;
		this.visible = source.visible;
		this.castShadow = source.castShadow;
		this.receiveShadow = source.receiveShadow;
		this.frustumCulled = source.frustumCulled;
		this.renderOrder = source.renderOrder;
		this.userData = JSON.parse(JSON.stringify(source.userData));

		if (recursive === true) {
			for (let i = 0; i < source.children.length; i++) {
				const child = source.children[i];
				this.add(child.clone());
			}
		}

		return this;
	}

}

Object3D.DefaultUp = new Vector3(0, 1, 0);
Object3D.DefaultMatrixAutoUpdate = true;
Object3D.prototype.isObject3D = true;

const _v0$1 = /*@__PURE__*/new Vector3();

const _v1$3 = /*@__PURE__*/new Vector3();

const _v2$2 = /*@__PURE__*/new Vector3();

const _v3$1 = /*@__PURE__*/new Vector3();

const _vab = /*@__PURE__*/new Vector3();

const _vac = /*@__PURE__*/new Vector3();

const _vbc = /*@__PURE__*/new Vector3();

const _vap = /*@__PURE__*/new Vector3();

const _vbp = /*@__PURE__*/new Vector3();

const _vcp = /*@__PURE__*/new Vector3();

class Triangle {
	constructor(a = new Vector3(), b = new Vector3(), c = new Vector3()) {
		this.a = a;
		this.b = b;
		this.c = c;
	}

	static getNormal(a, b, c, target) {
		target.subVectors(c, b);

		_v0$1.subVectors(a, b);

		target.cross(_v0$1);
		const targetLengthSq = target.lengthSq();

		if (targetLengthSq > 0) {
			return target.multiplyScalar(1 / Math.sqrt(targetLengthSq));
		}

		return target.set(0, 0, 0);
	} // static/instance method to calculate barycentric coordinates
	// based on: http://www.blackpawn.com/texts/pointinpoly/default.html


	static getBarycoord(point, a, b, c, target) {
		_v0$1.subVectors(c, a);

		_v1$3.subVectors(b, a);

		_v2$2.subVectors(point, a);

		const dot00 = _v0$1.dot(_v0$1);

		const dot01 = _v0$1.dot(_v1$3);

		const dot02 = _v0$1.dot(_v2$2);

		const dot11 = _v1$3.dot(_v1$3);

		const dot12 = _v1$3.dot(_v2$2);

		const denom = dot00 * dot11 - dot01 * dot01; // collinear or singular triangle

		if (denom === 0) {
			// arbitrary location outside of triangle?
			// not sure if this is the best idea, maybe should be returning undefined
			return target.set(-2, -1, -1);
		}

		const invDenom = 1 / denom;
		const u = (dot11 * dot02 - dot01 * dot12) * invDenom;
		const v = (dot00 * dot12 - dot01 * dot02) * invDenom; // barycentric coordinates must always sum to 1

		return target.set(1 - u - v, v, u);
	}

	static containsPoint(point, a, b, c) {
		this.getBarycoord(point, a, b, c, _v3$1);
		return _v3$1.x >= 0 && _v3$1.y >= 0 && _v3$1.x + _v3$1.y <= 1;
	}

	static getUV(point, p1, p2, p3, uv1, uv2, uv3, target) {
		this.getBarycoord(point, p1, p2, p3, _v3$1);
		target.set(0, 0);
		target.addScaledVector(uv1, _v3$1.x);
		target.addScaledVector(uv2, _v3$1.y);
		target.addScaledVector(uv3, _v3$1.z);
		return target;
	}

	static isFrontFacing(a, b, c, direction) {
		_v0$1.subVectors(c, b);

		_v1$3.subVectors(a, b); // strictly front facing


		return _v0$1.cross(_v1$3).dot(direction) < 0 ? true : false;
	}

	set(a, b, c) {
		this.a.copy(a);
		this.b.copy(b);
		this.c.copy(c);
		return this;
	}

	setFromPointsAndIndices(points, i0, i1, i2) {
		this.a.copy(points[i0]);
		this.b.copy(points[i1]);
		this.c.copy(points[i2]);
		return this;
	}

	setFromAttributeAndIndices(attribute, i0, i1, i2) {
		this.a.fromBufferAttribute(attribute, i0);
		this.b.fromBufferAttribute(attribute, i1);
		this.c.fromBufferAttribute(attribute, i2);
		return this;
	}

	clone() {
		return new this.constructor().copy(this);
	}

	copy(triangle) {
		this.a.copy(triangle.a);
		this.b.copy(triangle.b);
		this.c.copy(triangle.c);
		return this;
	}

	getArea() {
		_v0$1.subVectors(this.c, this.b);

		_v1$3.subVectors(this.a, this.b);

		return _v0$1.cross(_v1$3).length() * 0.5;
	}

	getMidpoint(target) {
		return target.addVectors(this.a, this.b).add(this.c).multiplyScalar(1 / 3);
	}

	getNormal(target) {
		return Triangle.getNormal(this.a, this.b, this.c, target);
	}

	getPlane(target) {
		return target.setFromCoplanarPoints(this.a, this.b, this.c);
	}

	getBarycoord(point, target) {
		return Triangle.getBarycoord(point, this.a, this.b, this.c, target);
	}

	getUV(point, uv1, uv2, uv3, target) {
		return Triangle.getUV(point, this.a, this.b, this.c, uv1, uv2, uv3, target);
	}

	containsPoint(point) {
		return Triangle.containsPoint(point, this.a, this.b, this.c);
	}

	isFrontFacing(direction) {
		return Triangle.isFrontFacing(this.a, this.b, this.c, direction);
	}

	intersectsBox(box) {
		return box.intersectsTriangle(this);
	}

	closestPointToPoint(p, target) {
		const a = this.a,
					b = this.b,
					c = this.c;
		let v, w; // algorithm thanks to Real-Time Collision Detection by Christer Ericson,
		// published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,
		// under the accompanying license; see chapter 5.1.5 for detailed explanation.
		// basically, we're distinguishing which of the voronoi regions of the triangle
		// the point lies in with the minimum amount of redundant computation.

		_vab.subVectors(b, a);

		_vac.subVectors(c, a);

		_vap.subVectors(p, a);

		const d1 = _vab.dot(_vap);

		const d2 = _vac.dot(_vap);

		if (d1 <= 0 && d2 <= 0) {
			// vertex region of A; barycentric coords (1, 0, 0)
			return target.copy(a);
		}

		_vbp.subVectors(p, b);

		const d3 = _vab.dot(_vbp);

		const d4 = _vac.dot(_vbp);

		if (d3 >= 0 && d4 <= d3) {
			// vertex region of B; barycentric coords (0, 1, 0)
			return target.copy(b);
		}

		const vc = d1 * d4 - d3 * d2;

		if (vc <= 0 && d1 >= 0 && d3 <= 0) {
			v = d1 / (d1 - d3); // edge region of AB; barycentric coords (1-v, v, 0)

			return target.copy(a).addScaledVector(_vab, v);
		}

		_vcp.subVectors(p, c);

		const d5 = _vab.dot(_vcp);

		const d6 = _vac.dot(_vcp);

		if (d6 >= 0 && d5 <= d6) {
			// vertex region of C; barycentric coords (0, 0, 1)
			return target.copy(c);
		}

		const vb = d5 * d2 - d1 * d6;

		if (vb <= 0 && d2 >= 0 && d6 <= 0) {
			w = d2 / (d2 - d6); // edge region of AC; barycentric coords (1-w, 0, w)

			return target.copy(a).addScaledVector(_vac, w);
		}

		const va = d3 * d6 - d5 * d4;

		if (va <= 0 && d4 - d3 >= 0 && d5 - d6 >= 0) {
			_vbc.subVectors(c, b);

			w = (d4 - d3) / (d4 - d3 + (d5 - d6)); // edge region of BC; barycentric coords (0, 1-w, w)

			return target.copy(b).addScaledVector(_vbc, w); // edge region of BC
		} // face region


		const denom = 1 / (va + vb + vc); // u = va * denom

		v = vb * denom;
		w = vc * denom;
		return target.copy(a).addScaledVector(_vab, v).addScaledVector(_vac, w);
	}

	equals(triangle) {
		return triangle.a.equals(this.a) && triangle.b.equals(this.b) && triangle.c.equals(this.c);
	}

}

let materialId = 0;

class Material extends EventDispatcher {
	constructor() {
		super();
		Object.defineProperty(this, 'id', {
			value: materialId++
		});
		this.uuid = generateUUID();
		this.name = '';
		this.type = 'Material';
		this.fog = true;
		this.blending = NormalBlending;
		this.side = FrontSide;
		this.vertexColors = false;
		this.opacity = 1;
		this.transparent = false;
		this.blendSrc = SrcAlphaFactor;
		this.blendDst = OneMinusSrcAlphaFactor;
		this.blendEquation = AddEquation;
		this.blendSrcAlpha = null;
		this.blendDstAlpha = null;
		this.blendEquationAlpha = null;
		this.depthFunc = LessEqualDepth;
		this.depthTest = true;
		this.depthWrite = true;
		this.stencilWriteMask = 0xff;
		this.stencilFunc = AlwaysStencilFunc;
		this.stencilRef = 0;
		this.stencilFuncMask = 0xff;
		this.stencilFail = KeepStencilOp;
		this.stencilZFail = KeepStencilOp;
		this.stencilZPass = KeepStencilOp;
		this.stencilWrite = false;
		this.clippingPlanes = null;
		this.clipIntersection = false;
		this.clipShadows = false;
		this.shadowSide = null;
		this.colorWrite = true;
		this.precision = null; // override the renderer's default precision for this material

		this.polygonOffset = false;
		this.polygonOffsetFactor = 0;
		this.polygonOffsetUnits = 0;
		this.dithering = false;
		this.alphaToCoverage = false;
		this.premultipliedAlpha = false;
		this.visible = true;
		this.toneMapped = true;
		this.userData = {};
		this.version = 0;
		this._alphaTest = 0;
	}

	get alphaTest() {
		return this._alphaTest;
	}

	set alphaTest(value) {
		if (this._alphaTest > 0 !== value > 0) {
			this.version++;
		}

		this._alphaTest = value;
	}

	onBuild() {}

	onBeforeRender() {}

	onBeforeCompile() {}

	customProgramCacheKey() {
		return this.onBeforeCompile.toString();
	}

	setValues(values) {
		if (values === undefined) return;

		for (const key in values) {
			const newValue = values[key];

			if (newValue === undefined) {
				console.warn('THREE.Material: \'' + key + '\' parameter is undefined.');
				continue;
			} // for backward compatability if shading is set in the constructor


			if (key === 'shading') {
				console.warn('THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.');
				this.flatShading = newValue === FlatShading ? true : false;
				continue;
			}

			const currentValue = this[key];

			if (currentValue === undefined) {
				console.warn('THREE.' + this.type + ': \'' + key + '\' is not a property of this material.');
				continue;
			}

			if (currentValue && currentValue.isColor) {
				currentValue.set(newValue);
			} else if (currentValue && currentValue.isVector3 && newValue && newValue.isVector3) {
				currentValue.copy(newValue);
			} else {
				this[key] = newValue;
			}
		}
	}

	toJSON(meta) {
		const isRoot = meta === undefined || typeof meta === 'string';

		if (isRoot) {
			meta = {
				textures: {},
				images: {}
			};
		}

		const data = {
			metadata: {
				version: 4.5,
				type: 'Material',
				generator: 'Material.toJSON'
			}
		}; // standard Material serialization

		data.uuid = this.uuid;
		data.type = this.type;
		if (this.name !== '') data.name = this.name;
		if (this.color && this.color.isColor) data.color = this.color.getHex();
		if (this.roughness !== undefined) data.roughness = this.roughness;
		if (this.metalness !== undefined) data.metalness = this.metalness;
		if (this.sheen !== undefined) data.sheen = this.sheen;
		if (this.sheenColor && this.sheenColor.isColor) data.sheenColor = this.sheenColor.getHex();
		if (this.sheenRoughness !== undefined) data.sheenRoughness = this.sheenRoughness;
		if (this.emissive && this.emissive.isColor) data.emissive = this.emissive.getHex();
		if (this.emissiveIntensity && this.emissiveIntensity !== 1) data.emissiveIntensity = this.emissiveIntensity;
		if (this.specular && this.specular.isColor) data.specular = this.specular.getHex();
		if (this.specularIntensity !== undefined) data.specularIntensity = this.specularIntensity;
		if (this.specularColor && this.specularColor.isColor) data.specularColor = this.specularColor.getHex();
		if (this.shininess !== undefined) data.shininess = this.shininess;
		if (this.clearcoat !== undefined) data.clearcoat = this.clearcoat;
		if (this.clearcoatRoughness !== undefined) data.clearcoatRoughness = this.clearcoatRoughness;

		if (this.clearcoatMap && this.clearcoatMap.isTexture) {
			data.clearcoatMap = this.clearcoatMap.toJSON(meta).uuid;
		}

		if (this.clearcoatRoughnessMap && this.clearcoatRoughnessMap.isTexture) {
			data.clearcoatRoughnessMap = this.clearcoatRoughnessMap.toJSON(meta).uuid;
		}

		if (this.clearcoatNormalMap && this.clearcoatNormalMap.isTexture) {
			data.clearcoatNormalMap = this.clearcoatNormalMap.toJSON(meta).uuid;
			data.clearcoatNormalScale = this.clearcoatNormalScale.toArray();
		}

		if (this.map && this.map.isTexture) data.map = this.map.toJSON(meta).uuid;
		if (this.matcap && this.matcap.isTexture) data.matcap = this.matcap.toJSON(meta).uuid;
		if (this.alphaMap && this.alphaMap.isTexture) data.alphaMap = this.alphaMap.toJSON(meta).uuid;

		if (this.lightMap && this.lightMap.isTexture) {
			data.lightMap = this.lightMap.toJSON(meta).uuid;
			data.lightMapIntensity = this.lightMapIntensity;
		}

		if (this.aoMap && this.aoMap.isTexture) {
			data.aoMap = this.aoMap.toJSON(meta).uuid;
			data.aoMapIntensity = this.aoMapIntensity;
		}

		if (this.bumpMap && this.bumpMap.isTexture) {
			data.bumpMap = this.bumpMap.toJSON(meta).uuid;
			data.bumpScale = this.bumpScale;
		}

		if (this.normalMap && this.normalMap.isTexture) {
			data.normalMap = this.normalMap.toJSON(meta).uuid;
			data.normalMapType = this.normalMapType;
			data.normalScale = this.normalScale.toArray();
		}

		if (this.displacementMap && this.displacementMap.isTexture) {
			data.displacementMap = this.displacementMap.toJSON(meta).uuid;
			data.displacementScale = this.displacementScale;
			data.displacementBias = this.displacementBias;
		}

		if (this.roughnessMap && this.roughnessMap.isTexture) data.roughnessMap = this.roughnessMap.toJSON(meta).uuid;
		if (this.metalnessMap && this.metalnessMap.isTexture) data.metalnessMap = this.metalnessMap.toJSON(meta).uuid;
		if (this.emissiveMap && this.emissiveMap.isTexture) data.emissiveMap = this.emissiveMap.toJSON(meta).uuid;
		if (this.specularMap && this.specularMap.isTexture) data.specularMap = this.specularMap.toJSON(meta).uuid;
		if (this.specularIntensityMap && this.specularIntensityMap.isTexture) data.specularIntensityMap = this.specularIntensityMap.toJSON(meta).uuid;
		if (this.specularColorMap && this.specularColorMap.isTexture) data.specularColorMap = this.specularColorMap.toJSON(meta).uuid;

		if (this.envMap && this.envMap.isTexture) {
			data.envMap = this.envMap.toJSON(meta).uuid;
			if (this.combine !== undefined) data.combine = this.combine;
		}

		if (this.envMapIntensity !== undefined) data.envMapIntensity = this.envMapIntensity;
		if (this.reflectivity !== undefined) data.reflectivity = this.reflectivity;
		if (this.refractionRatio !== undefined) data.refractionRatio = this.refractionRatio;

		if (this.gradientMap && this.gradientMap.isTexture) {
			data.gradientMap = this.gradientMap.toJSON(meta).uuid;
		}

		if (this.transmission !== undefined) data.transmission = this.transmission;
		if (this.transmissionMap && this.transmissionMap.isTexture) data.transmissionMap = this.transmissionMap.toJSON(meta).uuid;
		if (this.thickness !== undefined) data.thickness = this.thickness;
		if (this.thicknessMap && this.thicknessMap.isTexture) data.thicknessMap = this.thicknessMap.toJSON(meta).uuid;
		if (this.attenuationDistance !== undefined) data.attenuationDistance = this.attenuationDistance;
		if (this.attenuationColor !== undefined) data.attenuationColor = this.attenuationColor.getHex();
		if (this.size !== undefined) data.size = this.size;
		if (this.shadowSide !== null) data.shadowSide = this.shadowSide;
		if (this.sizeAttenuation !== undefined) data.sizeAttenuation = this.sizeAttenuation;
		if (this.blending !== NormalBlending) data.blending = this.blending;
		if (this.side !== FrontSide) data.side = this.side;
		if (this.vertexColors) data.vertexColors = true;
		if (this.opacity < 1) data.opacity = this.opacity;
		if (this.transparent === true) data.transparent = this.transparent;
		data.depthFunc = this.depthFunc;
		data.depthTest = this.depthTest;
		data.depthWrite = this.depthWrite;
		data.colorWrite = this.colorWrite;
		data.stencilWrite = this.stencilWrite;
		data.stencilWriteMask = this.stencilWriteMask;
		data.stencilFunc = this.stencilFunc;
		data.stencilRef = this.stencilRef;
		data.stencilFuncMask = this.stencilFuncMask;
		data.stencilFail = this.stencilFail;
		data.stencilZFail = this.stencilZFail;
		data.stencilZPass = this.stencilZPass; // rotation (SpriteMaterial)

		if (this.rotation && this.rotation !== 0) data.rotation = this.rotation;
		if (this.polygonOffset === true) data.polygonOffset = true;
		if (this.polygonOffsetFactor !== 0) data.polygonOffsetFactor = this.polygonOffsetFactor;
		if (this.polygonOffsetUnits !== 0) data.polygonOffsetUnits = this.polygonOffsetUnits;
		if (this.linewidth && this.linewidth !== 1) data.linewidth = this.linewidth;
		if (this.dashSize !== undefined) data.dashSize = this.dashSize;
		if (this.gapSize !== undefined) data.gapSize = this.gapSize;
		if (this.scale !== undefined) data.scale = this.scale;
		if (this.dithering === true) data.dithering = true;
		if (this.alphaTest > 0) data.alphaTest = this.alphaTest;
		if (this.alphaToCoverage === true) data.alphaToCoverage = this.alphaToCoverage;
		if (this.premultipliedAlpha === true) data.premultipliedAlpha = this.premultipliedAlpha;
		if (this.wireframe === true) data.wireframe = this.wireframe;
		if (this.wireframeLinewidth > 1) data.wireframeLinewidth = this.wireframeLinewidth;
		if (this.wireframeLinecap !== 'round') data.wireframeLinecap = this.wireframeLinecap;
		if (this.wireframeLinejoin !== 'round') data.wireframeLinejoin = this.wireframeLinejoin;
		if (this.flatShading === true) data.flatShading = this.flatShading;
		if (this.visible === false) data.visible = false;
		if (this.toneMapped === false) data.toneMapped = false;
		if (JSON.stringify(this.userData) !== '{}') data.userData = this.userData; // TODO: Copied from Object3D.toJSON

		function extractFromCache(cache) {
			const values = [];

			for (const key in cache) {
				const data = cache[key];
				delete data.metadata;
				values.push(data);
			}

			return values;
		}

		if (isRoot) {
			const textures = extractFromCache(meta.textures);
			const images = extractFromCache(meta.images);
			if (textures.length > 0) data.textures = textures;
			if (images.length > 0) data.images = images;
		}

		return data;
	}

	clone() {
		return new this.constructor().copy(this);
	}

	copy(source) {
		this.name = source.name;
		this.fog = source.fog;
		this.blending = source.blending;
		this.side = source.side;
		this.vertexColors = source.vertexColors;
		this.opacity = source.opacity;
		this.transparent = source.transparent;
		this.blendSrc = source.blendSrc;
		this.blendDst = source.blendDst;
		this.blendEquation = source.blendEquation;
		this.blendSrcAlpha = source.blendSrcAlpha;
		this.blendDstAlpha = source.blendDstAlpha;
		this.blendEquationAlpha = source.blendEquationAlpha;
		this.depthFunc = source.depthFunc;
		this.depthTest = source.depthTest;
		this.depthWrite = source.depthWrite;
		this.stencilWriteMask = source.stencilWriteMask;
		this.stencilFunc = source.stencilFunc;
		this.stencilRef = source.stencilRef;
		this.stencilFuncMask = source.stencilFuncMask;
		this.stencilFail = source.stencilFail;
		this.stencilZFail = source.stencilZFail;
		this.stencilZPass = source.stencilZPass;
		this.stencilWrite = source.stencilWrite;
		const srcPlanes = source.clippingPlanes;
		let dstPlanes = null;

		if (srcPlanes !== null) {
			const n = srcPlanes.length;
			dstPlanes = new Array(n);

			for (let i = 0; i !== n; ++i) {
				dstPlanes[i] = srcPlanes[i].clone();
			}
		}

		this.clippingPlanes = dstPlanes;
		this.clipIntersection = source.clipIntersection;
		this.clipShadows = source.clipShadows;
		this.shadowSide = source.shadowSide;
		this.colorWrite = source.colorWrite;
		this.precision = source.precision;
		this.polygonOffset = source.polygonOffset;
		this.polygonOffsetFactor = source.polygonOffsetFactor;
		this.polygonOffsetUnits = source.polygonOffsetUnits;
		this.dithering = source.dithering;
		this.alphaTest = source.alphaTest;
		this.alphaToCoverage = source.alphaToCoverage;
		this.premultipliedAlpha = source.premultipliedAlpha;
		this.visible = source.visible;
		this.toneMapped = source.toneMapped;
		this.userData = JSON.parse(JSON.stringify(source.userData));
		return this;
	}

	dispose() {
		this.dispatchEvent({
			type: 'dispose'
		});
	}

	set needsUpdate(value) {
		if (value === true) this.version++;
	}

}

Material.prototype.isMaterial = true;

/**
 * parameters = {
 *	color: <hex>,
 *	opacity: <float>,
 *	map: new THREE.Texture( <Image> ),
 *
 *	lightMap: new THREE.Texture( <Image> ),
 *	lightMapIntensity: <float>
 *
 *	aoMap: new THREE.Texture( <Image> ),
 *	aoMapIntensity: <float>
 *
 *	specularMap: new THREE.Texture( <Image> ),
 *
 *	alphaMap: new THREE.Texture( <Image> ),
 *
 *	envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *	combine: THREE.Multiply,
 *	reflectivity: <float>,
 *	refractionRatio: <float>,
 *
 *	depthTest: <bool>,
 *	depthWrite: <bool>,
 *
 *	wireframe: <boolean>,
 *	wireframeLinewidth: <float>,
 * }
 */

class MeshBasicMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'MeshBasicMaterial';
		this.color = new Color(0xffffff); // emissive

		this.map = null;
		this.lightMap = null;
		this.lightMapIntensity = 1.0;
		this.aoMap = null;
		this.aoMapIntensity = 1.0;
		this.specularMap = null;
		this.alphaMap = null;
		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;
		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.color.copy(source.color);
		this.map = source.map;
		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;
		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;
		this.specularMap = source.specularMap;
		this.alphaMap = source.alphaMap;
		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;
		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;
		return this;
	}

}

MeshBasicMaterial.prototype.isMeshBasicMaterial = true;

const _vector$9 = /*@__PURE__*/new Vector3();

const _vector2$1 = /*@__PURE__*/new Vector2();

class BufferAttribute {
	constructor(array, itemSize, normalized) {
		if (Array.isArray(array)) {
			throw new TypeError('THREE.BufferAttribute: array should be a Typed Array.');
		}

		this.name = '';
		this.array = array;
		this.itemSize = itemSize;
		this.count = array !== undefined ? array.length / itemSize : 0;
		this.normalized = normalized === true;
		this.usage = StaticDrawUsage;
		this.updateRange = {
			offset: 0,
			count: -1
		};
		this.version = 0;
	}

	onUploadCallback() {}

	set needsUpdate(value) {
		if (value === true) this.version++;
	}

	setUsage(value) {
		this.usage = value;
		return this;
	}

	copy(source) {
		this.name = source.name;
		this.array = new source.array.constructor(source.array);
		this.itemSize = source.itemSize;
		this.count = source.count;
		this.normalized = source.normalized;
		this.usage = source.usage;
		return this;
	}

	copyAt(index1, attribute, index2) {
		index1 *= this.itemSize;
		index2 *= attribute.itemSize;

		for (let i = 0, l = this.itemSize; i < l; i++) {
			this.array[index1 + i] = attribute.array[index2 + i];
		}

		return this;
	}

	copyArray(array) {
		this.array.set(array);
		return this;
	}

	copyColorsArray(colors) {
		const array = this.array;
		let offset = 0;

		for (let i = 0, l = colors.length; i < l; i++) {
			let color = colors[i];

			if (color === undefined) {
				console.warn('THREE.BufferAttribute.copyColorsArray(): color is undefined', i);
				color = new Color();
			}

			array[offset++] = color.r;
			array[offset++] = color.g;
			array[offset++] = color.b;
		}

		return this;
	}

	copyVector2sArray(vectors) {
		const array = this.array;
		let offset = 0;

		for (let i = 0, l = vectors.length; i < l; i++) {
			let vector = vectors[i];

			if (vector === undefined) {
				console.warn('THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i);
				vector = new Vector2();
			}

			array[offset++] = vector.x;
			array[offset++] = vector.y;
		}

		return this;
	}

	copyVector3sArray(vectors) {
		const array = this.array;
		let offset = 0;

		for (let i = 0, l = vectors.length; i < l; i++) {
			let vector = vectors[i];

			if (vector === undefined) {
				console.warn('THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i);
				vector = new Vector3();
			}

			array[offset++] = vector.x;
			array[offset++] = vector.y;
			array[offset++] = vector.z;
		}

		return this;
	}

	copyVector4sArray(vectors) {
		const array = this.array;
		let offset = 0;

		for (let i = 0, l = vectors.length; i < l; i++) {
			let vector = vectors[i];

			if (vector === undefined) {
				console.warn('THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i);
				vector = new Vector4();
			}

			array[offset++] = vector.x;
			array[offset++] = vector.y;
			array[offset++] = vector.z;
			array[offset++] = vector.w;
		}

		return this;
	}

	applyMatrix3(m) {
		if (this.itemSize === 2) {
			for (let i = 0, l = this.count; i < l; i++) {
				_vector2$1.fromBufferAttribute(this, i);

				_vector2$1.applyMatrix3(m);

				this.setXY(i, _vector2$1.x, _vector2$1.y);
			}
		} else if (this.itemSize === 3) {
			for (let i = 0, l = this.count; i < l; i++) {
				_vector$9.fromBufferAttribute(this, i);

				_vector$9.applyMatrix3(m);

				this.setXYZ(i, _vector$9.x, _vector$9.y, _vector$9.z);
			}
		}

		return this;
	}

	applyMatrix4(m) {
		for (let i = 0, l = this.count; i < l; i++) {
			_vector$9.x = this.getX(i);
			_vector$9.y = this.getY(i);
			_vector$9.z = this.getZ(i);

			_vector$9.applyMatrix4(m);

			this.setXYZ(i, _vector$9.x, _vector$9.y, _vector$9.z);
		}

		return this;
	}

	applyNormalMatrix(m) {
		for (let i = 0, l = this.count; i < l; i++) {
			_vector$9.x = this.getX(i);
			_vector$9.y = this.getY(i);
			_vector$9.z = this.getZ(i);

			_vector$9.applyNormalMatrix(m);

			this.setXYZ(i, _vector$9.x, _vector$9.y, _vector$9.z);
		}

		return this;
	}

	transformDirection(m) {
		for (let i = 0, l = this.count; i < l; i++) {
			_vector$9.x = this.getX(i);
			_vector$9.y = this.getY(i);
			_vector$9.z = this.getZ(i);

			_vector$9.transformDirection(m);

			this.setXYZ(i, _vector$9.x, _vector$9.y, _vector$9.z);
		}

		return this;
	}

	set(value, offset = 0) {
		this.array.set(value, offset);
		return this;
	}

	getX(index) {
		return this.array[index * this.itemSize];
	}

	setX(index, x) {
		this.array[index * this.itemSize] = x;
		return this;
	}

	getY(index) {
		return this.array[index * this.itemSize + 1];
	}

	setY(index, y) {
		this.array[index * this.itemSize + 1] = y;
		return this;
	}

	getZ(index) {
		return this.array[index * this.itemSize + 2];
	}

	setZ(index, z) {
		this.array[index * this.itemSize + 2] = z;
		return this;
	}

	getW(index) {
		return this.array[index * this.itemSize + 3];
	}

	setW(index, w) {
		this.array[index * this.itemSize + 3] = w;
		return this;
	}

	setXY(index, x, y) {
		index *= this.itemSize;
		this.array[index + 0] = x;
		this.array[index + 1] = y;
		return this;
	}

	setXYZ(index, x, y, z) {
		index *= this.itemSize;
		this.array[index + 0] = x;
		this.array[index + 1] = y;
		this.array[index + 2] = z;
		return this;
	}

	setXYZW(index, x, y, z, w) {
		index *= this.itemSize;
		this.array[index + 0] = x;
		this.array[index + 1] = y;
		this.array[index + 2] = z;
		this.array[index + 3] = w;
		return this;
	}

	onUpload(callback) {
		this.onUploadCallback = callback;
		return this;
	}

	clone() {
		return new this.constructor(this.array, this.itemSize).copy(this);
	}

	toJSON() {
		const data = {
			itemSize: this.itemSize,
			type: this.array.constructor.name,
			array: Array.prototype.slice.call(this.array),
			normalized: this.normalized
		};
		if (this.name !== '') data.name = this.name;
		if (this.usage !== StaticDrawUsage) data.usage = this.usage;
		if (this.updateRange.offset !== 0 || this.updateRange.count !== -1) data.updateRange = this.updateRange;
		return data;
	}

}

BufferAttribute.prototype.isBufferAttribute = true; //

class Int8BufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Int8Array(array), itemSize, normalized);
	}

}

class Uint8BufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Uint8Array(array), itemSize, normalized);
	}

}

class Uint8ClampedBufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Uint8ClampedArray(array), itemSize, normalized);
	}

}

class Int16BufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Int16Array(array), itemSize, normalized);
	}

}

class Uint16BufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Uint16Array(array), itemSize, normalized);
	}

}

class Int32BufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Int32Array(array), itemSize, normalized);
	}

}

class Uint32BufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Uint32Array(array), itemSize, normalized);
	}

}

class Float16BufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Uint16Array(array), itemSize, normalized);
	}

}

Float16BufferAttribute.prototype.isFloat16BufferAttribute = true;

class Float32BufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Float32Array(array), itemSize, normalized);
	}

}

class Float64BufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized) {
		super(new Float64Array(array), itemSize, normalized);
	}

} //

let _id$1 = 0;

const _m1 = /*@__PURE__*/new Matrix4();

const _obj = /*@__PURE__*/new Object3D();

const _offset = /*@__PURE__*/new Vector3();

const _box$1 = /*@__PURE__*/new Box3();

const _boxMorphTargets = /*@__PURE__*/new Box3();

const _vector$8 = /*@__PURE__*/new Vector3();

class BufferGeometry extends EventDispatcher {
	constructor() {
		super();
		Object.defineProperty(this, 'id', {
			value: _id$1++
		});
		this.uuid = generateUUID();
		this.name = '';
		this.type = 'BufferGeometry';
		this.index = null;
		this.attributes = {};
		this.morphAttributes = {};
		this.morphTargetsRelative = false;
		this.groups = [];
		this.boundingBox = null;
		this.boundingSphere = null;
		this.drawRange = {
			start: 0,
			count: Infinity
		};
		this.userData = {};
	}

	getIndex() {
		return this.index;
	}

	setIndex(index) {
		if (Array.isArray(index)) {
			this.index = new (arrayNeedsUint32(index) ? Uint32BufferAttribute : Uint16BufferAttribute)(index, 1);
		} else {
			this.index = index;
		}

		return this;
	}

	getAttribute(name) {
		return this.attributes[name];
	}

	setAttribute(name, attribute) {
		this.attributes[name] = attribute;
		return this;
	}

	deleteAttribute(name) {
		delete this.attributes[name];
		return this;
	}

	hasAttribute(name) {
		return this.attributes[name] !== undefined;
	}

	addGroup(start, count, materialIndex = 0) {
		this.groups.push({
			start: start,
			count: count,
			materialIndex: materialIndex
		});
	}

	clearGroups() {
		this.groups = [];
	}

	setDrawRange(start, count) {
		this.drawRange.start = start;
		this.drawRange.count = count;
	}

	applyMatrix4(matrix) {
		const position = this.attributes.position;

		if (position !== undefined) {
			position.applyMatrix4(matrix);
			position.needsUpdate = true;
		}

		const normal = this.attributes.normal;

		if (normal !== undefined) {
			const normalMatrix = new Matrix3().getNormalMatrix(matrix);
			normal.applyNormalMatrix(normalMatrix);
			normal.needsUpdate = true;
		}

		const tangent = this.attributes.tangent;

		if (tangent !== undefined) {
			tangent.transformDirection(matrix);
			tangent.needsUpdate = true;
		}

		if (this.boundingBox !== null) {
			this.computeBoundingBox();
		}

		if (this.boundingSphere !== null) {
			this.computeBoundingSphere();
		}

		return this;
	}

	applyQuaternion(q) {
		_m1.makeRotationFromQuaternion(q);

		this.applyMatrix4(_m1);
		return this;
	}

	rotateX(angle) {
		// rotate geometry around world x-axis
		_m1.makeRotationX(angle);

		this.applyMatrix4(_m1);
		return this;
	}

	rotateY(angle) {
		// rotate geometry around world y-axis
		_m1.makeRotationY(angle);

		this.applyMatrix4(_m1);
		return this;
	}

	rotateZ(angle) {
		// rotate geometry around world z-axis
		_m1.makeRotationZ(angle);

		this.applyMatrix4(_m1);
		return this;
	}

	translate(x, y, z) {
		// translate geometry
		_m1.makeTranslation(x, y, z);

		this.applyMatrix4(_m1);
		return this;
	}

	scale(x, y, z) {
		// scale geometry
		_m1.makeScale(x, y, z);

		this.applyMatrix4(_m1);
		return this;
	}

	lookAt(vector) {
		_obj.lookAt(vector);

		_obj.updateMatrix();

		this.applyMatrix4(_obj.matrix);
		return this;
	}

	center() {
		this.computeBoundingBox();
		this.boundingBox.getCenter(_offset).negate();
		this.translate(_offset.x, _offset.y, _offset.z);
		return this;
	}

	setFromPoints(points) {
		const position = [];

		for (let i = 0, l = points.length; i < l; i++) {
			const point = points[i];
			position.push(point.x, point.y, point.z || 0);
		}

		this.setAttribute('position', new Float32BufferAttribute(position, 3));
		return this;
	}

	computeBoundingBox() {
		if (this.boundingBox === null) {
			this.boundingBox = new Box3();
		}

		const position = this.attributes.position;
		const morphAttributesPosition = this.morphAttributes.position;

		if (position && position.isGLBufferAttribute) {
			console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".', this);
			this.boundingBox.set(new Vector3(-Infinity, -Infinity, -Infinity), new Vector3(+Infinity, +Infinity, +Infinity));
			return;
		}

		if (position !== undefined) {
			this.boundingBox.setFromBufferAttribute(position); // process morph attributes if present

			if (morphAttributesPosition) {
				for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
					const morphAttribute = morphAttributesPosition[i];

					_box$1.setFromBufferAttribute(morphAttribute);

					if (this.morphTargetsRelative) {
						_vector$8.addVectors(this.boundingBox.min, _box$1.min);

						this.boundingBox.expandByPoint(_vector$8);

						_vector$8.addVectors(this.boundingBox.max, _box$1.max);

						this.boundingBox.expandByPoint(_vector$8);
					} else {
						this.boundingBox.expandByPoint(_box$1.min);
						this.boundingBox.expandByPoint(_box$1.max);
					}
				}
			}
		} else {
			this.boundingBox.makeEmpty();
		}

		if (isNaN(this.boundingBox.min.x) || isNaN(this.boundingBox.min.y) || isNaN(this.boundingBox.min.z)) {
			console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this);
		}
	}

	computeBoundingSphere() {
		if (this.boundingSphere === null) {
			this.boundingSphere = new Sphere();
		}

		const position = this.attributes.position;
		const morphAttributesPosition = this.morphAttributes.position;

		if (position && position.isGLBufferAttribute) {
			console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".', this);
			this.boundingSphere.set(new Vector3(), Infinity);
			return;
		}

		if (position) {
			// first, find the center of the bounding sphere
			const center = this.boundingSphere.center;

			_box$1.setFromBufferAttribute(position); // process morph attributes if present


			if (morphAttributesPosition) {
				for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
					const morphAttribute = morphAttributesPosition[i];

					_boxMorphTargets.setFromBufferAttribute(morphAttribute);

					if (this.morphTargetsRelative) {
						_vector$8.addVectors(_box$1.min, _boxMorphTargets.min);

						_box$1.expandByPoint(_vector$8);

						_vector$8.addVectors(_box$1.max, _boxMorphTargets.max);

						_box$1.expandByPoint(_vector$8);
					} else {
						_box$1.expandByPoint(_boxMorphTargets.min);

						_box$1.expandByPoint(_boxMorphTargets.max);
					}
				}
			}

			_box$1.getCenter(center); // second, try to find a boundingSphere with a radius smaller than the
			// boundingSphere of the boundingBox: sqrt(3) smaller in the best case


			let maxRadiusSq = 0;

			for (let i = 0, il = position.count; i < il; i++) {
				_vector$8.fromBufferAttribute(position, i);

				maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(_vector$8));
			} // process morph attributes if present


			if (morphAttributesPosition) {
				for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
					const morphAttribute = morphAttributesPosition[i];
					const morphTargetsRelative = this.morphTargetsRelative;

					for (let j = 0, jl = morphAttribute.count; j < jl; j++) {
						_vector$8.fromBufferAttribute(morphAttribute, j);

						if (morphTargetsRelative) {
							_offset.fromBufferAttribute(position, j);

							_vector$8.add(_offset);
						}

						maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(_vector$8));
					}
				}
			}

			this.boundingSphere.radius = Math.sqrt(maxRadiusSq);

			if (isNaN(this.boundingSphere.radius)) {
				console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this);
			}
		}
	}

	computeTangents() {
		const index = this.index;
		const attributes = this.attributes; // based on http://www.terathon.com/code/tangent.html
		// (per vertex tangents)

		if (index === null || attributes.position === undefined || attributes.normal === undefined || attributes.uv === undefined) {
			console.error('THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)');
			return;
		}

		const indices = index.array;
		const positions = attributes.position.array;
		const normals = attributes.normal.array;
		const uvs = attributes.uv.array;
		const nVertices = positions.length / 3;

		if (attributes.tangent === undefined) {
			this.setAttribute('tangent', new BufferAttribute(new Float32Array(4 * nVertices), 4));
		}

		const tangents = attributes.tangent.array;
		const tan1 = [],
					tan2 = [];

		for (let i = 0; i < nVertices; i++) {
			tan1[i] = new Vector3();
			tan2[i] = new Vector3();
		}

		const vA = new Vector3(),
					vB = new Vector3(),
					vC = new Vector3(),
					uvA = new Vector2(),
					uvB = new Vector2(),
					uvC = new Vector2(),
					sdir = new Vector3(),
					tdir = new Vector3();

		function handleTriangle(a, b, c) {
			vA.fromArray(positions, a * 3);
			vB.fromArray(positions, b * 3);
			vC.fromArray(positions, c * 3);
			uvA.fromArray(uvs, a * 2);
			uvB.fromArray(uvs, b * 2);
			uvC.fromArray(uvs, c * 2);
			vB.sub(vA);
			vC.sub(vA);
			uvB.sub(uvA);
			uvC.sub(uvA);
			const r = 1.0 / (uvB.x * uvC.y - uvC.x * uvB.y); // silently ignore degenerate uv triangles having coincident or colinear vertices

			if (!isFinite(r)) return;
			sdir.copy(vB).multiplyScalar(uvC.y).addScaledVector(vC, -uvB.y).multiplyScalar(r);
			tdir.copy(vC).multiplyScalar(uvB.x).addScaledVector(vB, -uvC.x).multiplyScalar(r);
			tan1[a].add(sdir);
			tan1[b].add(sdir);
			tan1[c].add(sdir);
			tan2[a].add(tdir);
			tan2[b].add(tdir);
			tan2[c].add(tdir);
		}

		let groups = this.groups;

		if (groups.length === 0) {
			groups = [{
				start: 0,
				count: indices.length
			}];
		}

		for (let i = 0, il = groups.length; i < il; ++i) {
			const group = groups[i];
			const start = group.start;
			const count = group.count;

			for (let j = start, jl = start + count; j < jl; j += 3) {
				handleTriangle(indices[j + 0], indices[j + 1], indices[j + 2]);
			}
		}

		const tmp = new Vector3(),
					tmp2 = new Vector3();
		const n = new Vector3(),
					n2 = new Vector3();

		function handleVertex(v) {
			n.fromArray(normals, v * 3);
			n2.copy(n);
			const t = tan1[v]; // Gram-Schmidt orthogonalize

			tmp.copy(t);
			tmp.sub(n.multiplyScalar(n.dot(t))).normalize(); // Calculate handedness

			tmp2.crossVectors(n2, t);
			const test = tmp2.dot(tan2[v]);
			const w = test < 0.0 ? -1.0 : 1.0;
			tangents[v * 4] = tmp.x;
			tangents[v * 4 + 1] = tmp.y;
			tangents[v * 4 + 2] = tmp.z;
			tangents[v * 4 + 3] = w;
		}

		for (let i = 0, il = groups.length; i < il; ++i) {
			const group = groups[i];
			const start = group.start;
			const count = group.count;

			for (let j = start, jl = start + count; j < jl; j += 3) {
				handleVertex(indices[j + 0]);
				handleVertex(indices[j + 1]);
				handleVertex(indices[j + 2]);
			}
		}
	}

	computeVertexNormals() {
		const index = this.index;
		const positionAttribute = this.getAttribute('position');

		if (positionAttribute !== undefined) {
			let normalAttribute = this.getAttribute('normal');

			if (normalAttribute === undefined) {
				normalAttribute = new BufferAttribute(new Float32Array(positionAttribute.count * 3), 3);
				this.setAttribute('normal', normalAttribute);
			} else {
				// reset existing normals to zero
				for (let i = 0, il = normalAttribute.count; i < il; i++) {
					normalAttribute.setXYZ(i, 0, 0, 0);
				}
			}

			const pA = new Vector3(),
						pB = new Vector3(),
						pC = new Vector3();
			const nA = new Vector3(),
						nB = new Vector3(),
						nC = new Vector3();
			const cb = new Vector3(),
						ab = new Vector3(); // indexed elements

			if (index) {
				for (let i = 0, il = index.count; i < il; i += 3) {
					const vA = index.getX(i + 0);
					const vB = index.getX(i + 1);
					const vC = index.getX(i + 2);
					pA.fromBufferAttribute(positionAttribute, vA);
					pB.fromBufferAttribute(positionAttribute, vB);
					pC.fromBufferAttribute(positionAttribute, vC);
					cb.subVectors(pC, pB);
					ab.subVectors(pA, pB);
					cb.cross(ab);
					nA.fromBufferAttribute(normalAttribute, vA);
					nB.fromBufferAttribute(normalAttribute, vB);
					nC.fromBufferAttribute(normalAttribute, vC);
					nA.add(cb);
					nB.add(cb);
					nC.add(cb);
					normalAttribute.setXYZ(vA, nA.x, nA.y, nA.z);
					normalAttribute.setXYZ(vB, nB.x, nB.y, nB.z);
					normalAttribute.setXYZ(vC, nC.x, nC.y, nC.z);
				}
			} else {
				// non-indexed elements (unconnected triangle soup)
				for (let i = 0, il = positionAttribute.count; i < il; i += 3) {
					pA.fromBufferAttribute(positionAttribute, i + 0);
					pB.fromBufferAttribute(positionAttribute, i + 1);
					pC.fromBufferAttribute(positionAttribute, i + 2);
					cb.subVectors(pC, pB);
					ab.subVectors(pA, pB);
					cb.cross(ab);
					normalAttribute.setXYZ(i + 0, cb.x, cb.y, cb.z);
					normalAttribute.setXYZ(i + 1, cb.x, cb.y, cb.z);
					normalAttribute.setXYZ(i + 2, cb.x, cb.y, cb.z);
				}
			}

			this.normalizeNormals();
			normalAttribute.needsUpdate = true;
		}
	}

	merge(geometry, offset) {
		if (!(geometry && geometry.isBufferGeometry)) {
			console.error('THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry);
			return;
		}

		if (offset === undefined) {
			offset = 0;
			console.warn('THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. ' + 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.');
		}

		const attributes = this.attributes;

		for (const key in attributes) {
			if (geometry.attributes[key] === undefined) continue;
			const attribute1 = attributes[key];
			const attributeArray1 = attribute1.array;
			const attribute2 = geometry.attributes[key];
			const attributeArray2 = attribute2.array;
			const attributeOffset = attribute2.itemSize * offset;
			const length = Math.min(attributeArray2.length, attributeArray1.length - attributeOffset);

			for (let i = 0, j = attributeOffset; i < length; i++, j++) {
				attributeArray1[j] = attributeArray2[i];
			}
		}

		return this;
	}

	normalizeNormals() {
		const normals = this.attributes.normal;

		for (let i = 0, il = normals.count; i < il; i++) {
			_vector$8.fromBufferAttribute(normals, i);

			_vector$8.normalize();

			normals.setXYZ(i, _vector$8.x, _vector$8.y, _vector$8.z);
		}
	}

	toNonIndexed() {
		function convertBufferAttribute(attribute, indices) {
			const array = attribute.array;
			const itemSize = attribute.itemSize;
			const normalized = attribute.normalized;
			const array2 = new array.constructor(indices.length * itemSize);
			let index = 0,
					index2 = 0;

			for (let i = 0, l = indices.length; i < l; i++) {
				if (attribute.isInterleavedBufferAttribute) {
					index = indices[i] * attribute.data.stride + attribute.offset;
				} else {
					index = indices[i] * itemSize;
				}

				for (let j = 0; j < itemSize; j++) {
					array2[index2++] = array[index++];
				}
			}

			return new BufferAttribute(array2, itemSize, normalized);
		} //


		if (this.index === null) {
			console.warn('THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed.');
			return this;
		}

		const geometry2 = new BufferGeometry();
		const indices = this.index.array;
		const attributes = this.attributes; // attributes

		for (const name in attributes) {
			const attribute = attributes[name];
			const newAttribute = convertBufferAttribute(attribute, indices);
			geometry2.setAttribute(name, newAttribute);
		} // morph attributes


		const morphAttributes = this.morphAttributes;

		for (const name in morphAttributes) {
			const morphArray = [];
			const morphAttribute = morphAttributes[name]; // morphAttribute: array of Float32BufferAttributes

			for (let i = 0, il = morphAttribute.length; i < il; i++) {
				const attribute = morphAttribute[i];
				const newAttribute = convertBufferAttribute(attribute, indices);
				morphArray.push(newAttribute);
			}

			geometry2.morphAttributes[name] = morphArray;
		}

		geometry2.morphTargetsRelative = this.morphTargetsRelative; // groups

		const groups = this.groups;

		for (let i = 0, l = groups.length; i < l; i++) {
			const group = groups[i];
			geometry2.addGroup(group.start, group.count, group.materialIndex);
		}

		return geometry2;
	}

	toJSON() {
		const data = {
			metadata: {
				version: 4.5,
				type: 'BufferGeometry',
				generator: 'BufferGeometry.toJSON'
			}
		}; // standard BufferGeometry serialization

		data.uuid = this.uuid;
		data.type = this.type;
		if (this.name !== '') data.name = this.name;
		if (Object.keys(this.userData).length > 0) data.userData = this.userData;

		if (this.parameters !== undefined) {
			const parameters = this.parameters;

			for (const key in parameters) {
				if (parameters[key] !== undefined) data[key] = parameters[key];
			}

			return data;
		} // for simplicity the code assumes attributes are not shared across geometries, see #15811


		data.data = {
			attributes: {}
		};
		const index = this.index;

		if (index !== null) {
			data.data.index = {
				type: index.array.constructor.name,
				array: Array.prototype.slice.call(index.array)
			};
		}

		const attributes = this.attributes;

		for (const key in attributes) {
			const attribute = attributes[key];
			data.data.attributes[key] = attribute.toJSON(data.data);
		}

		const morphAttributes = {};
		let hasMorphAttributes = false;

		for (const key in this.morphAttributes) {
			const attributeArray = this.morphAttributes[key];
			const array = [];

			for (let i = 0, il = attributeArray.length; i < il; i++) {
				const attribute = attributeArray[i];
				array.push(attribute.toJSON(data.data));
			}

			if (array.length > 0) {
				morphAttributes[key] = array;
				hasMorphAttributes = true;
			}
		}

		if (hasMorphAttributes) {
			data.data.morphAttributes = morphAttributes;
			data.data.morphTargetsRelative = this.morphTargetsRelative;
		}

		const groups = this.groups;

		if (groups.length > 0) {
			data.data.groups = JSON.parse(JSON.stringify(groups));
		}

		const boundingSphere = this.boundingSphere;

		if (boundingSphere !== null) {
			data.data.boundingSphere = {
				center: boundingSphere.center.toArray(),
				radius: boundingSphere.radius
			};
		}

		return data;
	}

	clone() {
		return new this.constructor().copy(this);
	}

	copy(source) {
		// reset
		this.index = null;
		this.attributes = {};
		this.morphAttributes = {};
		this.groups = [];
		this.boundingBox = null;
		this.boundingSphere = null; // used for storing cloned, shared data

		const data = {}; // name

		this.name = source.name; // index

		const index = source.index;

		if (index !== null) {
			this.setIndex(index.clone(data));
		} // attributes


		const attributes = source.attributes;

		for (const name in attributes) {
			const attribute = attributes[name];
			this.setAttribute(name, attribute.clone(data));
		} // morph attributes


		const morphAttributes = source.morphAttributes;

		for (const name in morphAttributes) {
			const array = [];
			const morphAttribute = morphAttributes[name]; // morphAttribute: array of Float32BufferAttributes

			for (let i = 0, l = morphAttribute.length; i < l; i++) {
				array.push(morphAttribute[i].clone(data));
			}

			this.morphAttributes[name] = array;
		}

		this.morphTargetsRelative = source.morphTargetsRelative; // groups

		const groups = source.groups;

		for (let i = 0, l = groups.length; i < l; i++) {
			const group = groups[i];
			this.addGroup(group.start, group.count, group.materialIndex);
		} // bounding box


		const boundingBox = source.boundingBox;

		if (boundingBox !== null) {
			this.boundingBox = boundingBox.clone();
		} // bounding sphere


		const boundingSphere = source.boundingSphere;

		if (boundingSphere !== null) {
			this.boundingSphere = boundingSphere.clone();
		} // draw range


		this.drawRange.start = source.drawRange.start;
		this.drawRange.count = source.drawRange.count; // user data

		this.userData = source.userData; // geometry generator parameters

		if (source.parameters !== undefined) this.parameters = Object.assign({}, source.parameters);
		return this;
	}

	dispose() {
		this.dispatchEvent({
			type: 'dispose'
		});
	}

}

BufferGeometry.prototype.isBufferGeometry = true;

const _inverseMatrix$2 = /*@__PURE__*/new Matrix4();

const _ray$2 = /*@__PURE__*/new Ray();

const _sphere$3 = /*@__PURE__*/new Sphere();

const _vA$1 = /*@__PURE__*/new Vector3();

const _vB$1 = /*@__PURE__*/new Vector3();

const _vC$1 = /*@__PURE__*/new Vector3();

const _tempA = /*@__PURE__*/new Vector3();

const _tempB = /*@__PURE__*/new Vector3();

const _tempC = /*@__PURE__*/new Vector3();

const _morphA = /*@__PURE__*/new Vector3();

const _morphB = /*@__PURE__*/new Vector3();

const _morphC = /*@__PURE__*/new Vector3();

const _uvA$1 = /*@__PURE__*/new Vector2();

const _uvB$1 = /*@__PURE__*/new Vector2();

const _uvC$1 = /*@__PURE__*/new Vector2();

const _intersectionPoint = /*@__PURE__*/new Vector3();

const _intersectionPointWorld = /*@__PURE__*/new Vector3();

class Mesh extends Object3D {
	constructor(geometry = new BufferGeometry(), material = new MeshBasicMaterial()) {
		super();
		this.type = 'Mesh';
		this.geometry = geometry;
		this.material = material;
		this.updateMorphTargets();
	}

	copy(source) {
		super.copy(source);

		if (source.morphTargetInfluences !== undefined) {
			this.morphTargetInfluences = source.morphTargetInfluences.slice();
		}

		if (source.morphTargetDictionary !== undefined) {
			this.morphTargetDictionary = Object.assign({}, source.morphTargetDictionary);
		}

		this.material = source.material;
		this.geometry = source.geometry;
		return this;
	}

	updateMorphTargets() {
		const geometry = this.geometry;

		if (geometry.isBufferGeometry) {
			const morphAttributes = geometry.morphAttributes;
			const keys = Object.keys(morphAttributes);

			if (keys.length > 0) {
				const morphAttribute = morphAttributes[keys[0]];

				if (morphAttribute !== undefined) {
					this.morphTargetInfluences = [];
					this.morphTargetDictionary = {};

					for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
						const name = morphAttribute[m].name || String(m);
						this.morphTargetInfluences.push(0);
						this.morphTargetDictionary[name] = m;
					}
				}
			}
		} else {
			const morphTargets = geometry.morphTargets;

			if (morphTargets !== undefined && morphTargets.length > 0) {
				console.error('THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
			}
		}
	}

	raycast(raycaster, intersects) {
		const geometry = this.geometry;
		const material = this.material;
		const matrixWorld = this.matrixWorld;
		if (material === undefined) return; // Checking boundingSphere distance to ray

		if (geometry.boundingSphere === null) geometry.computeBoundingSphere();

		_sphere$3.copy(geometry.boundingSphere);

		_sphere$3.applyMatrix4(matrixWorld);

		if (raycaster.ray.intersectsSphere(_sphere$3) === false) return; //

		_inverseMatrix$2.copy(matrixWorld).invert();

		_ray$2.copy(raycaster.ray).applyMatrix4(_inverseMatrix$2); // Check boundingBox before continuing


		if (geometry.boundingBox !== null) {
			if (_ray$2.intersectsBox(geometry.boundingBox) === false) return;
		}

		let intersection;

		if (geometry.isBufferGeometry) {
			const index = geometry.index;
			const position = geometry.attributes.position;
			const morphPosition = geometry.morphAttributes.position;
			const morphTargetsRelative = geometry.morphTargetsRelative;
			const uv = geometry.attributes.uv;
			const uv2 = geometry.attributes.uv2;
			const groups = geometry.groups;
			const drawRange = geometry.drawRange;

			if (index !== null) {
				// indexed buffer geometry
				if (Array.isArray(material)) {
					for (let i = 0, il = groups.length; i < il; i++) {
						const group = groups[i];
						const groupMaterial = material[group.materialIndex];
						const start = Math.max(group.start, drawRange.start);
						const end = Math.min(index.count, Math.min(group.start + group.count, drawRange.start + drawRange.count));

						for (let j = start, jl = end; j < jl; j += 3) {
							const a = index.getX(j);
							const b = index.getX(j + 1);
							const c = index.getX(j + 2);
							intersection = checkBufferGeometryIntersection(this, groupMaterial, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);

							if (intersection) {
								intersection.faceIndex = Math.floor(j / 3); // triangle number in indexed buffer semantics

								intersection.face.materialIndex = group.materialIndex;
								intersects.push(intersection);
							}
						}
					}
				} else {
					const start = Math.max(0, drawRange.start);
					const end = Math.min(index.count, drawRange.start + drawRange.count);

					for (let i = start, il = end; i < il; i += 3) {
						const a = index.getX(i);
						const b = index.getX(i + 1);
						const c = index.getX(i + 2);
						intersection = checkBufferGeometryIntersection(this, material, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);

						if (intersection) {
							intersection.faceIndex = Math.floor(i / 3); // triangle number in indexed buffer semantics

							intersects.push(intersection);
						}
					}
				}
			} else if (position !== undefined) {
				// non-indexed buffer geometry
				if (Array.isArray(material)) {
					for (let i = 0, il = groups.length; i < il; i++) {
						const group = groups[i];
						const groupMaterial = material[group.materialIndex];
						const start = Math.max(group.start, drawRange.start);
						const end = Math.min(position.count, Math.min(group.start + group.count, drawRange.start + drawRange.count));

						for (let j = start, jl = end; j < jl; j += 3) {
							const a = j;
							const b = j + 1;
							const c = j + 2;
							intersection = checkBufferGeometryIntersection(this, groupMaterial, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);

							if (intersection) {
								intersection.faceIndex = Math.floor(j / 3); // triangle number in non-indexed buffer semantics

								intersection.face.materialIndex = group.materialIndex;
								intersects.push(intersection);
							}
						}
					}
				} else {
					const start = Math.max(0, drawRange.start);
					const end = Math.min(position.count, drawRange.start + drawRange.count);

					for (let i = start, il = end; i < il; i += 3) {
						const a = i;
						const b = i + 1;
						const c = i + 2;
						intersection = checkBufferGeometryIntersection(this, material, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c);

						if (intersection) {
							intersection.faceIndex = Math.floor(i / 3); // triangle number in non-indexed buffer semantics

							intersects.push(intersection);
						}
					}
				}
			}
		} else if (geometry.isGeometry) {
			console.error('THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
		}
	}

}

Mesh.prototype.isMesh = true;

function checkIntersection(object, material, raycaster, ray, pA, pB, pC, point) {
	let intersect;

	if (material.side === BackSide) {
		intersect = ray.intersectTriangle(pC, pB, pA, true, point);
	} else {
		intersect = ray.intersectTriangle(pA, pB, pC, material.side !== DoubleSide, point);
	}

	if (intersect === null) return null;

	_intersectionPointWorld.copy(point);

	_intersectionPointWorld.applyMatrix4(object.matrixWorld);

	const distance = raycaster.ray.origin.distanceTo(_intersectionPointWorld);
	if (distance < raycaster.near || distance > raycaster.far) return null;
	return {
		distance: distance,
		point: _intersectionPointWorld.clone(),
		object: object
	};
}

function checkBufferGeometryIntersection(object, material, raycaster, ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c) {
	_vA$1.fromBufferAttribute(position, a);

	_vB$1.fromBufferAttribute(position, b);

	_vC$1.fromBufferAttribute(position, c);

	const morphInfluences = object.morphTargetInfluences;

	if (morphPosition && morphInfluences) {
		_morphA.set(0, 0, 0);

		_morphB.set(0, 0, 0);

		_morphC.set(0, 0, 0);

		for (let i = 0, il = morphPosition.length; i < il; i++) {
			const influence = morphInfluences[i];
			const morphAttribute = morphPosition[i];
			if (influence === 0) continue;

			_tempA.fromBufferAttribute(morphAttribute, a);

			_tempB.fromBufferAttribute(morphAttribute, b);

			_tempC.fromBufferAttribute(morphAttribute, c);

			if (morphTargetsRelative) {
				_morphA.addScaledVector(_tempA, influence);

				_morphB.addScaledVector(_tempB, influence);

				_morphC.addScaledVector(_tempC, influence);
			} else {
				_morphA.addScaledVector(_tempA.sub(_vA$1), influence);

				_morphB.addScaledVector(_tempB.sub(_vB$1), influence);

				_morphC.addScaledVector(_tempC.sub(_vC$1), influence);
			}
		}

		_vA$1.add(_morphA);

		_vB$1.add(_morphB);

		_vC$1.add(_morphC);
	}

	if (object.isSkinnedMesh) {
		object.boneTransform(a, _vA$1);
		object.boneTransform(b, _vB$1);
		object.boneTransform(c, _vC$1);
	}

	const intersection = checkIntersection(object, material, raycaster, ray, _vA$1, _vB$1, _vC$1, _intersectionPoint);

	if (intersection) {
		if (uv) {
			_uvA$1.fromBufferAttribute(uv, a);

			_uvB$1.fromBufferAttribute(uv, b);

			_uvC$1.fromBufferAttribute(uv, c);

			intersection.uv = Triangle.getUV(_intersectionPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2());
		}

		if (uv2) {
			_uvA$1.fromBufferAttribute(uv2, a);

			_uvB$1.fromBufferAttribute(uv2, b);

			_uvC$1.fromBufferAttribute(uv2, c);

			intersection.uv2 = Triangle.getUV(_intersectionPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2());
		}

		const face = {
			a: a,
			b: b,
			c: c,
			normal: new Vector3(),
			materialIndex: 0
		};
		Triangle.getNormal(_vA$1, _vB$1, _vC$1, face.normal);
		intersection.face = face;
	}

	return intersection;
}

class BoxGeometry extends BufferGeometry {
	constructor(width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1) {
		super();
		this.type = 'BoxGeometry';
		this.parameters = {
			width: width,
			height: height,
			depth: depth,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			depthSegments: depthSegments
		};
		const scope = this; // segments

		widthSegments = Math.floor(widthSegments);
		heightSegments = Math.floor(heightSegments);
		depthSegments = Math.floor(depthSegments); // buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = []; // helper variables

		let numberOfVertices = 0;
		let groupStart = 0; // build each side of the box geometry

		buildPlane('z', 'y', 'x', -1, -1, depth, height, width, depthSegments, heightSegments, 0); // px

		buildPlane('z', 'y', 'x', 1, -1, depth, height, -width, depthSegments, heightSegments, 1); // nx

		buildPlane('x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2); // py

		buildPlane('x', 'z', 'y', 1, -1, width, depth, -height, widthSegments, depthSegments, 3); // ny

		buildPlane('x', 'y', 'z', 1, -1, width, height, depth, widthSegments, heightSegments, 4); // pz

		buildPlane('x', 'y', 'z', -1, -1, width, height, -depth, widthSegments, heightSegments, 5); // nz
		// build geometry

		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));

		function buildPlane(u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex) {
			const segmentWidth = width / gridX;
			const segmentHeight = height / gridY;
			const widthHalf = width / 2;
			const heightHalf = height / 2;
			const depthHalf = depth / 2;
			const gridX1 = gridX + 1;
			const gridY1 = gridY + 1;
			let vertexCounter = 0;
			let groupCount = 0;
			const vector = new Vector3(); // generate vertices, normals and uvs

			for (let iy = 0; iy < gridY1; iy++) {
				const y = iy * segmentHeight - heightHalf;

				for (let ix = 0; ix < gridX1; ix++) {
					const x = ix * segmentWidth - widthHalf; // set values to correct vector component

					vector[u] = x * udir;
					vector[v] = y * vdir;
					vector[w] = depthHalf; // now apply vector to vertex buffer

					vertices.push(vector.x, vector.y, vector.z); // set values to correct vector component

					vector[u] = 0;
					vector[v] = 0;
					vector[w] = depth > 0 ? 1 : -1; // now apply vector to normal buffer

					normals.push(vector.x, vector.y, vector.z); // uvs

					uvs.push(ix / gridX);
					uvs.push(1 - iy / gridY); // counters

					vertexCounter += 1;
				}
			} // indices
			// 1. you need three indices to draw a single face
			// 2. a single segment consists of two faces
			// 3. so we need to generate six (2*3) indices per segment


			for (let iy = 0; iy < gridY; iy++) {
				for (let ix = 0; ix < gridX; ix++) {
					const a = numberOfVertices + ix + gridX1 * iy;
					const b = numberOfVertices + ix + gridX1 * (iy + 1);
					const c = numberOfVertices + (ix + 1) + gridX1 * (iy + 1);
					const d = numberOfVertices + (ix + 1) + gridX1 * iy; // faces

					indices.push(a, b, d);
					indices.push(b, c, d); // increase counter

					groupCount += 6;
				}
			} // add a group to the geometry. this will ensure multi material support


			scope.addGroup(groupStart, groupCount, materialIndex); // calculate new start value for groups

			groupStart += groupCount; // update total number of vertices

			numberOfVertices += vertexCounter;
		}
	}

	static fromJSON(data) {
		return new BoxGeometry(data.width, data.height, data.depth, data.widthSegments, data.heightSegments, data.depthSegments);
	}

}

/**
 * Uniform Utilities
 */
function cloneUniforms(src) {
	const dst = {};

	for (const u in src) {
		dst[u] = {};

		for (const p in src[u]) {
			const property = src[u][p];

			if (property && (property.isColor || property.isMatrix3 || property.isMatrix4 || property.isVector2 || property.isVector3 || property.isVector4 || property.isTexture || property.isQuaternion)) {
				dst[u][p] = property.clone();
			} else if (Array.isArray(property)) {
				dst[u][p] = property.slice();
			} else {
				dst[u][p] = property;
			}
		}
	}

	return dst;
}
function mergeUniforms(uniforms) {
	const merged = {};

	for (let u = 0; u < uniforms.length; u++) {
		const tmp = cloneUniforms(uniforms[u]);

		for (const p in tmp) {
			merged[p] = tmp[p];
		}
	}

	return merged;
} // Legacy

const UniformsUtils = {
	clone: cloneUniforms,
	merge: mergeUniforms
};

var default_vertex = "void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";

var default_fragment = "void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";

/**
 * parameters = {
 *	defines: { "label" : "value" },
 *	uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
 *
 *	fragmentShader: <string>,
 *	vertexShader: <string>,
 *
 *	wireframe: <boolean>,
 *	wireframeLinewidth: <float>,
 *
 *	lights: <bool>
 * }
 */

class ShaderMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'ShaderMaterial';
		this.defines = {};
		this.uniforms = {};
		this.vertexShader = default_vertex;
		this.fragmentShader = default_fragment;
		this.linewidth = 1;
		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.fog = false; // set to use scene fog

		this.lights = false; // set to use scene lights

		this.clipping = false; // set to use user-defined clipping planes

		this.extensions = {
			derivatives: false,
			// set to use derivatives
			fragDepth: false,
			// set to use fragment depth values
			drawBuffers: false,
			// set to use draw buffers
			shaderTextureLOD: false // set to use shader texture LOD

		}; // When rendered geometry doesn't include these attributes but the material does,
		// use these default values in WebGL. This avoids errors when buffer data is missing.

		this.defaultAttributeValues = {
			'color': [1, 1, 1],
			'uv': [0, 0],
			'uv2': [0, 0]
		};
		this.index0AttributeName = undefined;
		this.uniformsNeedUpdate = false;
		this.glslVersion = null;

		if (parameters !== undefined) {
			if (parameters.attributes !== undefined) {
				console.error('THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.');
			}

			this.setValues(parameters);
		}
	}

	copy(source) {
		super.copy(source);
		this.fragmentShader = source.fragmentShader;
		this.vertexShader = source.vertexShader;
		this.uniforms = cloneUniforms(source.uniforms);
		this.defines = Object.assign({}, source.defines);
		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.lights = source.lights;
		this.clipping = source.clipping;
		this.extensions = Object.assign({}, source.extensions);
		this.glslVersion = source.glslVersion;
		return this;
	}

	toJSON(meta) {
		const data = super.toJSON(meta);
		data.glslVersion = this.glslVersion;
		data.uniforms = {};

		for (const name in this.uniforms) {
			const uniform = this.uniforms[name];
			const value = uniform.value;

			if (value && value.isTexture) {
				data.uniforms[name] = {
					type: 't',
					value: value.toJSON(meta).uuid
				};
			} else if (value && value.isColor) {
				data.uniforms[name] = {
					type: 'c',
					value: value.getHex()
				};
			} else if (value && value.isVector2) {
				data.uniforms[name] = {
					type: 'v2',
					value: value.toArray()
				};
			} else if (value && value.isVector3) {
				data.uniforms[name] = {
					type: 'v3',
					value: value.toArray()
				};
			} else if (value && value.isVector4) {
				data.uniforms[name] = {
					type: 'v4',
					value: value.toArray()
				};
			} else if (value && value.isMatrix3) {
				data.uniforms[name] = {
					type: 'm3',
					value: value.toArray()
				};
			} else if (value && value.isMatrix4) {
				data.uniforms[name] = {
					type: 'm4',
					value: value.toArray()
				};
			} else {
				data.uniforms[name] = {
					value: value
				}; // note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far
			}
		}

		if (Object.keys(this.defines).length > 0) data.defines = this.defines;
		data.vertexShader = this.vertexShader;
		data.fragmentShader = this.fragmentShader;
		const extensions = {};

		for (const key in this.extensions) {
			if (this.extensions[key] === true) extensions[key] = true;
		}

		if (Object.keys(extensions).length > 0) data.extensions = extensions;
		return data;
	}

}

ShaderMaterial.prototype.isShaderMaterial = true;

class Camera extends Object3D {
	constructor() {
		super();
		this.type = 'Camera';
		this.matrixWorldInverse = new Matrix4();
		this.projectionMatrix = new Matrix4();
		this.projectionMatrixInverse = new Matrix4();
	}

	copy(source, recursive) {
		super.copy(source, recursive);
		this.matrixWorldInverse.copy(source.matrixWorldInverse);
		this.projectionMatrix.copy(source.projectionMatrix);
		this.projectionMatrixInverse.copy(source.projectionMatrixInverse);
		return this;
	}

	getWorldDirection(target) {
		this.updateWorldMatrix(true, false);
		const e = this.matrixWorld.elements;
		return target.set(-e[8], -e[9], -e[10]).normalize();
	}

	updateMatrixWorld(force) {
		super.updateMatrixWorld(force);
		this.matrixWorldInverse.copy(this.matrixWorld).invert();
	}

	updateWorldMatrix(updateParents, updateChildren) {
		super.updateWorldMatrix(updateParents, updateChildren);
		this.matrixWorldInverse.copy(this.matrixWorld).invert();
	}

	clone() {
		return new this.constructor().copy(this);
	}

}

Camera.prototype.isCamera = true;

class PerspectiveCamera extends Camera {
	constructor(fov = 50, aspect = 1, near = 0.1, far = 2000) {
		super();
		this.type = 'PerspectiveCamera';
		this.fov = fov;
		this.zoom = 1;
		this.near = near;
		this.far = far;
		this.focus = 10;
		this.aspect = aspect;
		this.view = null;
		this.filmGauge = 35; // width of the film (default in millimeters)

		this.filmOffset = 0; // horizontal film offset (same unit as gauge)

		this.updateProjectionMatrix();
	}

	copy(source, recursive) {
		super.copy(source, recursive);
		this.fov = source.fov;
		this.zoom = source.zoom;
		this.near = source.near;
		this.far = source.far;
		this.focus = source.focus;
		this.aspect = source.aspect;
		this.view = source.view === null ? null : Object.assign({}, source.view);
		this.filmGauge = source.filmGauge;
		this.filmOffset = source.filmOffset;
		return this;
	}
	/**
	 * Sets the FOV by focal length in respect to the current .filmGauge.
	 *
	 * The default film gauge is 35, so that the focal length can be specified for
	 * a 35mm (full frame) camera.
	 *
	 * Values for focal length and film gauge must have the same unit.
	 */


	setFocalLength(focalLength) {
		/** see {@link http://www.bobatkins.com/photography/technical/field_of_view.html} */
		const vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;
		this.fov = RAD2DEG * 2 * Math.atan(vExtentSlope);
		this.updateProjectionMatrix();
	}
	/**
	 * Calculates the focal length from the current .fov and .filmGauge.
	 */


	getFocalLength() {
		const vExtentSlope = Math.tan(DEG2RAD * 0.5 * this.fov);
		return 0.5 * this.getFilmHeight() / vExtentSlope;
	}

	getEffectiveFOV() {
		return RAD2DEG * 2 * Math.atan(Math.tan(DEG2RAD * 0.5 * this.fov) / this.zoom);
	}

	getFilmWidth() {
		// film not completely covered in portrait format (aspect < 1)
		return this.filmGauge * Math.min(this.aspect, 1);
	}

	getFilmHeight() {
		// film not completely covered in landscape format (aspect > 1)
		return this.filmGauge / Math.max(this.aspect, 1);
	}
	/**
	 * Sets an offset in a larger frustum. This is useful for multi-window or
	 * multi-monitor/multi-machine setups.
	 *
	 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
	 * the monitors are in grid like this
	 *
	 *	 +---+---+---+
	 *	 | A | B | C |
	 *	 +---+---+---+
	 *	 | D | E | F |
	 *	 +---+---+---+
	 *
	 * then for each monitor you would call it like this
	 *
	 *	 const w = 1920;
	 *	 const h = 1080;
	 *	 const fullWidth = w * 3;
	 *	 const fullHeight = h * 2;
	 *
	 *	 --A--
	 *	 camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
	 *	 --B--
	 *	 camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
	 *	 --C--
	 *	 camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
	 *	 --D--
	 *	 camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
	 *	 --E--
	 *	 camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
	 *	 --F--
	 *	 camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
	 *
	 *	 Note there is no reason monitors have to be the same size or in a grid.
	 */


	setViewOffset(fullWidth, fullHeight, x, y, width, height) {
		this.aspect = fullWidth / fullHeight;

		if (this.view === null) {
			this.view = {
				enabled: true,
				fullWidth: 1,
				fullHeight: 1,
				offsetX: 0,
				offsetY: 0,
				width: 1,
				height: 1
			};
		}

		this.view.enabled = true;
		this.view.fullWidth = fullWidth;
		this.view.fullHeight = fullHeight;
		this.view.offsetX = x;
		this.view.offsetY = y;
		this.view.width = width;
		this.view.height = height;
		this.updateProjectionMatrix();
	}

	clearViewOffset() {
		if (this.view !== null) {
			this.view.enabled = false;
		}

		this.updateProjectionMatrix();
	}

	updateProjectionMatrix() {
		const near = this.near;
		let top = near * Math.tan(DEG2RAD * 0.5 * this.fov) / this.zoom;
		let height = 2 * top;
		let width = this.aspect * height;
		let left = -0.5 * width;
		const view = this.view;

		if (this.view !== null && this.view.enabled) {
			const fullWidth = view.fullWidth,
						fullHeight = view.fullHeight;
			left += view.offsetX * width / fullWidth;
			top -= view.offsetY * height / fullHeight;
			width *= view.width / fullWidth;
			height *= view.height / fullHeight;
		}

		const skew = this.filmOffset;
		if (skew !== 0) left += near * skew / this.getFilmWidth();
		this.projectionMatrix.makePerspective(left, left + width, top, top - height, near, this.far);
		this.projectionMatrixInverse.copy(this.projectionMatrix).invert();
	}

	toJSON(meta) {
		const data = super.toJSON(meta);
		data.object.fov = this.fov;
		data.object.zoom = this.zoom;
		data.object.near = this.near;
		data.object.far = this.far;
		data.object.focus = this.focus;
		data.object.aspect = this.aspect;
		if (this.view !== null) data.object.view = Object.assign({}, this.view);
		data.object.filmGauge = this.filmGauge;
		data.object.filmOffset = this.filmOffset;
		return data;
	}

}

PerspectiveCamera.prototype.isPerspectiveCamera = true;

const fov = 90,
			aspect = 1;

class CubeCamera extends Object3D {
	constructor(near, far, renderTarget) {
		super();
		this.type = 'CubeCamera';

		if (renderTarget.isWebGLCubeRenderTarget !== true) {
			console.error('THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.');
			return;
		}

		this.renderTarget = renderTarget;
		const cameraPX = new PerspectiveCamera(fov, aspect, near, far);
		cameraPX.layers = this.layers;
		cameraPX.up.set(0, -1, 0);
		cameraPX.lookAt(new Vector3(1, 0, 0));
		this.add(cameraPX);
		const cameraNX = new PerspectiveCamera(fov, aspect, near, far);
		cameraNX.layers = this.layers;
		cameraNX.up.set(0, -1, 0);
		cameraNX.lookAt(new Vector3(-1, 0, 0));
		this.add(cameraNX);
		const cameraPY = new PerspectiveCamera(fov, aspect, near, far);
		cameraPY.layers = this.layers;
		cameraPY.up.set(0, 0, 1);
		cameraPY.lookAt(new Vector3(0, 1, 0));
		this.add(cameraPY);
		const cameraNY = new PerspectiveCamera(fov, aspect, near, far);
		cameraNY.layers = this.layers;
		cameraNY.up.set(0, 0, -1);
		cameraNY.lookAt(new Vector3(0, -1, 0));
		this.add(cameraNY);
		const cameraPZ = new PerspectiveCamera(fov, aspect, near, far);
		cameraPZ.layers = this.layers;
		cameraPZ.up.set(0, -1, 0);
		cameraPZ.lookAt(new Vector3(0, 0, 1));
		this.add(cameraPZ);
		const cameraNZ = new PerspectiveCamera(fov, aspect, near, far);
		cameraNZ.layers = this.layers;
		cameraNZ.up.set(0, -1, 0);
		cameraNZ.lookAt(new Vector3(0, 0, -1));
		this.add(cameraNZ);
	}

	update(renderer, scene) {
		if (this.parent === null) this.updateMatrixWorld();
		const renderTarget = this.renderTarget;
		const [cameraPX, cameraNX, cameraPY, cameraNY, cameraPZ, cameraNZ] = this.children;
		const currentXrEnabled = renderer.xr.enabled;
		const currentRenderTarget = renderer.getRenderTarget();
		renderer.xr.enabled = false;
		const generateMipmaps = renderTarget.texture.generateMipmaps;
		renderTarget.texture.generateMipmaps = false;
		renderer.setRenderTarget(renderTarget, 0);
		renderer.render(scene, cameraPX);
		renderer.setRenderTarget(renderTarget, 1);
		renderer.render(scene, cameraNX);
		renderer.setRenderTarget(renderTarget, 2);
		renderer.render(scene, cameraPY);
		renderer.setRenderTarget(renderTarget, 3);
		renderer.render(scene, cameraNY);
		renderer.setRenderTarget(renderTarget, 4);
		renderer.render(scene, cameraPZ);
		renderTarget.texture.generateMipmaps = generateMipmaps;
		renderer.setRenderTarget(renderTarget, 5);
		renderer.render(scene, cameraNZ);
		renderer.setRenderTarget(currentRenderTarget);
		renderer.xr.enabled = currentXrEnabled;
		renderTarget.texture.needsPMREMUpdate = true;
	}

}

class CubeTexture extends Texture {
	constructor(images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding) {
		images = images !== undefined ? images : [];
		mapping = mapping !== undefined ? mapping : CubeReflectionMapping;
		super(images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding);
		this.flipY = false;
	}

	get images() {
		return this.image;
	}

	set images(value) {
		this.image = value;
	}

}

CubeTexture.prototype.isCubeTexture = true;

class WebGLCubeRenderTarget extends WebGLRenderTarget {
	constructor(size, options, dummy) {
		if (Number.isInteger(options)) {
			console.warn('THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )');
			options = dummy;
		}

		super(size, size, options);
		options = options || {}; // By convention -- likely based on the RenderMan spec from the 1990's -- cube maps are specified by WebGL (and three.js)
		// in a coordinate system in which positive-x is to the right when looking up the positive-z axis -- in other words,
		// in a left-handed coordinate system. By continuing this convention, preexisting cube maps continued to render correctly.
		// three.js uses a right-handed coordinate system. So environment maps used in three.js appear to have px and nx swapped
		// and the flag isRenderTargetTexture controls this conversion. The flip is not required when using WebGLCubeRenderTarget.texture
		// as a cube texture (this is detected when isRenderTargetTexture is set to true for cube textures).

		this.texture = new CubeTexture(undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding);
		this.texture.isRenderTargetTexture = true;
		this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
		this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;
	}

	fromEquirectangularTexture(renderer, texture) {
		this.texture.type = texture.type;
		this.texture.format = RGBAFormat; // see #18859

		this.texture.encoding = texture.encoding;
		this.texture.generateMipmaps = texture.generateMipmaps;
		this.texture.minFilter = texture.minFilter;
		this.texture.magFilter = texture.magFilter;
		const shader = {
			uniforms: {
				tEquirect: {
					value: null
				}
			},
			vertexShader:
			/* glsl */
			`

				varying vec3 vWorldDirection;

				vec3 transformDirection( in vec3 dir, in mat4 matrix ) {

					return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );

				}

				void main() {

					vWorldDirection = transformDirection( position, modelMatrix );

					#include <begin_vertex>
					#include <project_vertex>

				}
			`,
			fragmentShader:
			/* glsl */
			`

				uniform sampler2D tEquirect;

				varying vec3 vWorldDirection;

				#include <common>

				void main() {

					vec3 direction = normalize( vWorldDirection );

					vec2 sampleUV = equirectUv( direction );

					gl_FragColor = texture2D( tEquirect, sampleUV );

				}
			`
		};
		const geometry = new BoxGeometry(5, 5, 5);
		const material = new ShaderMaterial({
			name: 'CubemapFromEquirect',
			uniforms: cloneUniforms(shader.uniforms),
			vertexShader: shader.vertexShader,
			fragmentShader: shader.fragmentShader,
			side: BackSide,
			blending: NoBlending
		});
		material.uniforms.tEquirect.value = texture;
		const mesh = new Mesh(geometry, material);
		const currentMinFilter = texture.minFilter; // Avoid blurred poles

		if (texture.minFilter === LinearMipmapLinearFilter) texture.minFilter = LinearFilter;
		const camera = new CubeCamera(1, 10, this);
		camera.update(renderer, mesh);
		texture.minFilter = currentMinFilter;
		mesh.geometry.dispose();
		mesh.material.dispose();
		return this;
	}

	clear(renderer, color, depth, stencil) {
		const currentRenderTarget = renderer.getRenderTarget();

		for (let i = 0; i < 6; i++) {
			renderer.setRenderTarget(this, i);
			renderer.clear(color, depth, stencil);
		}

		renderer.setRenderTarget(currentRenderTarget);
	}

}

WebGLCubeRenderTarget.prototype.isWebGLCubeRenderTarget = true;

const _vector1 = /*@__PURE__*/new Vector3();

const _vector2 = /*@__PURE__*/new Vector3();

const _normalMatrix = /*@__PURE__*/new Matrix3();

class Plane {
	constructor(normal = new Vector3(1, 0, 0), constant = 0) {
		// normal is assumed to be normalized
		this.normal = normal;
		this.constant = constant;
	}

	set(normal, constant) {
		this.normal.copy(normal);
		this.constant = constant;
		return this;
	}

	setComponents(x, y, z, w) {
		this.normal.set(x, y, z);
		this.constant = w;
		return this;
	}

	setFromNormalAndCoplanarPoint(normal, point) {
		this.normal.copy(normal);
		this.constant = -point.dot(this.normal);
		return this;
	}

	setFromCoplanarPoints(a, b, c) {
		const normal = _vector1.subVectors(c, b).cross(_vector2.subVectors(a, b)).normalize(); // Q: should an error be thrown if normal is zero (e.g. degenerate plane)?


		this.setFromNormalAndCoplanarPoint(normal, a);
		return this;
	}

	copy(plane) {
		this.normal.copy(plane.normal);
		this.constant = plane.constant;
		return this;
	}

	normalize() {
		// Note: will lead to a divide by zero if the plane is invalid.
		const inverseNormalLength = 1.0 / this.normal.length();
		this.normal.multiplyScalar(inverseNormalLength);
		this.constant *= inverseNormalLength;
		return this;
	}

	negate() {
		this.constant *= -1;
		this.normal.negate();
		return this;
	}

	distanceToPoint(point) {
		return this.normal.dot(point) + this.constant;
	}

	distanceToSphere(sphere) {
		return this.distanceToPoint(sphere.center) - sphere.radius;
	}

	projectPoint(point, target) {
		return target.copy(this.normal).multiplyScalar(-this.distanceToPoint(point)).add(point);
	}

	intersectLine(line, target) {
		const direction = line.delta(_vector1);
		const denominator = this.normal.dot(direction);

		if (denominator === 0) {
			// line is coplanar, return origin
			if (this.distanceToPoint(line.start) === 0) {
				return target.copy(line.start);
			} // Unsure if this is the correct method to handle this case.


			return null;
		}

		const t = -(line.start.dot(this.normal) + this.constant) / denominator;

		if (t < 0 || t > 1) {
			return null;
		}

		return target.copy(direction).multiplyScalar(t).add(line.start);
	}

	intersectsLine(line) {
		// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.
		const startSign = this.distanceToPoint(line.start);
		const endSign = this.distanceToPoint(line.end);
		return startSign < 0 && endSign > 0 || endSign < 0 && startSign > 0;
	}

	intersectsBox(box) {
		return box.intersectsPlane(this);
	}

	intersectsSphere(sphere) {
		return sphere.intersectsPlane(this);
	}

	coplanarPoint(target) {
		return target.copy(this.normal).multiplyScalar(-this.constant);
	}

	applyMatrix4(matrix, optionalNormalMatrix) {
		const normalMatrix = optionalNormalMatrix || _normalMatrix.getNormalMatrix(matrix);

		const referencePoint = this.coplanarPoint(_vector1).applyMatrix4(matrix);
		const normal = this.normal.applyMatrix3(normalMatrix).normalize();
		this.constant = -referencePoint.dot(normal);
		return this;
	}

	translate(offset) {
		this.constant -= offset.dot(this.normal);
		return this;
	}

	equals(plane) {
		return plane.normal.equals(this.normal) && plane.constant === this.constant;
	}

	clone() {
		return new this.constructor().copy(this);
	}

}

Plane.prototype.isPlane = true;

const _sphere$2 = /*@__PURE__*/new Sphere();

const _vector$7 = /*@__PURE__*/new Vector3();

class Frustum {
	constructor(p0 = new Plane(), p1 = new Plane(), p2 = new Plane(), p3 = new Plane(), p4 = new Plane(), p5 = new Plane()) {
		this.planes = [p0, p1, p2, p3, p4, p5];
	}

	set(p0, p1, p2, p3, p4, p5) {
		const planes = this.planes;
		planes[0].copy(p0);
		planes[1].copy(p1);
		planes[2].copy(p2);
		planes[3].copy(p3);
		planes[4].copy(p4);
		planes[5].copy(p5);
		return this;
	}

	copy(frustum) {
		const planes = this.planes;

		for (let i = 0; i < 6; i++) {
			planes[i].copy(frustum.planes[i]);
		}

		return this;
	}

	setFromProjectionMatrix(m) {
		const planes = this.planes;
		const me = m.elements;
		const me0 = me[0],
					me1 = me[1],
					me2 = me[2],
					me3 = me[3];
		const me4 = me[4],
					me5 = me[5],
					me6 = me[6],
					me7 = me[7];
		const me8 = me[8],
					me9 = me[9],
					me10 = me[10],
					me11 = me[11];
		const me12 = me[12],
					me13 = me[13],
					me14 = me[14],
					me15 = me[15];
		planes[0].setComponents(me3 - me0, me7 - me4, me11 - me8, me15 - me12).normalize();
		planes[1].setComponents(me3 + me0, me7 + me4, me11 + me8, me15 + me12).normalize();
		planes[2].setComponents(me3 + me1, me7 + me5, me11 + me9, me15 + me13).normalize();
		planes[3].setComponents(me3 - me1, me7 - me5, me11 - me9, me15 - me13).normalize();
		planes[4].setComponents(me3 - me2, me7 - me6, me11 - me10, me15 - me14).normalize();
		planes[5].setComponents(me3 + me2, me7 + me6, me11 + me10, me15 + me14).normalize();
		return this;
	}

	intersectsObject(object) {
		const geometry = object.geometry;
		if (geometry.boundingSphere === null) geometry.computeBoundingSphere();

		_sphere$2.copy(geometry.boundingSphere).applyMatrix4(object.matrixWorld);

		return this.intersectsSphere(_sphere$2);
	}

	intersectsSprite(sprite) {
		_sphere$2.center.set(0, 0, 0);

		_sphere$2.radius = 0.7071067811865476;

		_sphere$2.applyMatrix4(sprite.matrixWorld);

		return this.intersectsSphere(_sphere$2);
	}

	intersectsSphere(sphere) {
		const planes = this.planes;
		const center = sphere.center;
		const negRadius = -sphere.radius;

		for (let i = 0; i < 6; i++) {
			const distance = planes[i].distanceToPoint(center);

			if (distance < negRadius) {
				return false;
			}
		}

		return true;
	}

	intersectsBox(box) {
		const planes = this.planes;

		for (let i = 0; i < 6; i++) {
			const plane = planes[i]; // corner at max distance

			_vector$7.x = plane.normal.x > 0 ? box.max.x : box.min.x;
			_vector$7.y = plane.normal.y > 0 ? box.max.y : box.min.y;
			_vector$7.z = plane.normal.z > 0 ? box.max.z : box.min.z;

			if (plane.distanceToPoint(_vector$7) < 0) {
				return false;
			}
		}

		return true;
	}

	containsPoint(point) {
		const planes = this.planes;

		for (let i = 0; i < 6; i++) {
			if (planes[i].distanceToPoint(point) < 0) {
				return false;
			}
		}

		return true;
	}

	clone() {
		return new this.constructor().copy(this);
	}

}

function WebGLAnimation() {
	let context = null;
	let isAnimating = false;
	let animationLoop = null;
	let requestId = null;

	function onAnimationFrame(time, frame) {
		animationLoop(time, frame);
		requestId = context.requestAnimationFrame(onAnimationFrame);
	}

	return {
		start: function () {
			if (isAnimating === true) return;
			if (animationLoop === null) return;
			requestId = context.requestAnimationFrame(onAnimationFrame);
			isAnimating = true;
		},
		stop: function () {
			context.cancelAnimationFrame(requestId);
			isAnimating = false;
		},
		setAnimationLoop: function (callback) {
			animationLoop = callback;
		},
		setContext: function (value) {
			context = value;
		}
	};
}

function WebGLAttributes(gl, capabilities) {
	const isWebGL2 = capabilities.isWebGL2;
	const buffers = new WeakMap();

	function createBuffer(attribute, bufferType) {
		const array = attribute.array;
		const usage = attribute.usage;
		const buffer = gl.createBuffer();
		gl.bindBuffer(bufferType, buffer);
		gl.bufferData(bufferType, array, usage);
		attribute.onUploadCallback();
		let type = gl.FLOAT;

		if (array instanceof Float32Array) {
			type = gl.FLOAT;
		} else if (array instanceof Float64Array) {
			console.warn('THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.');
		} else if (array instanceof Uint16Array) {
			if (attribute.isFloat16BufferAttribute) {
				if (isWebGL2) {
					type = gl.HALF_FLOAT;
				} else {
					console.warn('THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2.');
				}
			} else {
				type = gl.UNSIGNED_SHORT;
			}
		} else if (array instanceof Int16Array) {
			type = gl.SHORT;
		} else if (array instanceof Uint32Array) {
			type = gl.UNSIGNED_INT;
		} else if (array instanceof Int32Array) {
			type = gl.INT;
		} else if (array instanceof Int8Array) {
			type = gl.BYTE;
		} else if (array instanceof Uint8Array) {
			type = gl.UNSIGNED_BYTE;
		} else if (array instanceof Uint8ClampedArray) {
			type = gl.UNSIGNED_BYTE;
		}

		return {
			buffer: buffer,
			type: type,
			bytesPerElement: array.BYTES_PER_ELEMENT,
			version: attribute.version
		};
	}

	function updateBuffer(buffer, attribute, bufferType) {
		const array = attribute.array;
		const updateRange = attribute.updateRange;
		gl.bindBuffer(bufferType, buffer);

		if (updateRange.count === -1) {
			// Not using update ranges
			gl.bufferSubData(bufferType, 0, array);
		} else {
			if (isWebGL2) {
				gl.bufferSubData(bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, array, updateRange.offset, updateRange.count);
			} else {
				gl.bufferSubData(bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, array.subarray(updateRange.offset, updateRange.offset + updateRange.count));
			}

			updateRange.count = -1; // reset range
		}
	} //


	function get(attribute) {
		if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
		return buffers.get(attribute);
	}

	function remove(attribute) {
		if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
		const data = buffers.get(attribute);

		if (data) {
			gl.deleteBuffer(data.buffer);
			buffers.delete(attribute);
		}
	}

	function update(attribute, bufferType) {
		if (attribute.isGLBufferAttribute) {
			const cached = buffers.get(attribute);

			if (!cached || cached.version < attribute.version) {
				buffers.set(attribute, {
					buffer: attribute.buffer,
					type: attribute.type,
					bytesPerElement: attribute.elementSize,
					version: attribute.version
				});
			}

			return;
		}

		if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
		const data = buffers.get(attribute);

		if (data === undefined) {
			buffers.set(attribute, createBuffer(attribute, bufferType));
		} else if (data.version < attribute.version) {
			updateBuffer(data.buffer, attribute, bufferType);
			data.version = attribute.version;
		}
	}

	return {
		get: get,
		remove: remove,
		update: update
	};
}

class PlaneGeometry extends BufferGeometry {
	constructor(width = 1, height = 1, widthSegments = 1, heightSegments = 1) {
		super();
		this.type = 'PlaneGeometry';
		this.parameters = {
			width: width,
			height: height,
			widthSegments: widthSegments,
			heightSegments: heightSegments
		};
		const width_half = width / 2;
		const height_half = height / 2;
		const gridX = Math.floor(widthSegments);
		const gridY = Math.floor(heightSegments);
		const gridX1 = gridX + 1;
		const gridY1 = gridY + 1;
		const segment_width = width / gridX;
		const segment_height = height / gridY; //

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		for (let iy = 0; iy < gridY1; iy++) {
			const y = iy * segment_height - height_half;

			for (let ix = 0; ix < gridX1; ix++) {
				const x = ix * segment_width - width_half;
				vertices.push(x, -y, 0);
				normals.push(0, 0, 1);
				uvs.push(ix / gridX);
				uvs.push(1 - iy / gridY);
			}
		}

		for (let iy = 0; iy < gridY; iy++) {
			for (let ix = 0; ix < gridX; ix++) {
				const a = ix + gridX1 * iy;
				const b = ix + gridX1 * (iy + 1);
				const c = ix + 1 + gridX1 * (iy + 1);
				const d = ix + 1 + gridX1 * iy;
				indices.push(a, b, d);
				indices.push(b, c, d);
			}
		}

		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
	}

	static fromJSON(data) {
		return new PlaneGeometry(data.width, data.height, data.widthSegments, data.heightSegments);
	}

}

var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif";

var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";

var alphatest_fragment = "#ifdef USE_ALPHATEST\n\tif ( diffuseColor.a < alphaTest ) discard;\n#endif";

var alphatest_pars_fragment = "#ifdef USE_ALPHATEST\n\tuniform float alphaTest;\n#endif";

var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.roughness );\n\t#endif\n#endif";

var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";

var begin_vertex = "vec3 transformed = vec3( position );";

var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif";

var bsdfs = "vec3 BRDF_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n}\nfloat V_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_GGX( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 f0, const in float f90, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( f0, f90, dotVH );\n\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( V * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_BlinnPhong( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, 1.0, dotVH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie( float roughness, float dotNH ) {\n\tfloat alpha = pow2( roughness );\n\tfloat invAlpha = 1.0 / alpha;\n\tfloat cos2h = dotNH * dotNH;\n\tfloat sin2h = max( 1.0 - cos2h, 0.0078125 );\n\treturn ( 2.0 + invAlpha ) * pow( sin2h, invAlpha * 0.5 ) / ( 2.0 * PI );\n}\nfloat V_Neubelt( float dotNV, float dotNL ) {\n\treturn saturate( 1.0 / ( 4.0 * ( dotNL + dotNV - dotNL * dotNV ) ) );\n}\nvec3 BRDF_Sheen( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, vec3 sheenColor, const in float sheenRoughness ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat D = D_Charlie( sheenRoughness, dotNH );\n\tfloat V = V_Neubelt( dotNV, dotNL );\n\treturn sheenColor * ( D * V );\n}\n#endif";

var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif";

var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif";

var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif";

var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif";

var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif";

var color_fragment = "#if defined( USE_COLOR_ALPHA )\n\tdiffuseColor *= vColor;\n#elif defined( USE_COLOR )\n\tdiffuseColor.rgb *= vColor;\n#endif";

var color_pars_fragment = "#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR )\n\tvarying vec3 vColor;\n#endif";

var color_pars_vertex = "#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif";

var color_vertex = "#if defined( USE_COLOR_ALPHA )\n\tvColor = vec4( 1.0 );\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor *= color;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif";

var common = "#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement( a ) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat max3( const in vec3 v ) { return max( max( v.x, v.y ), v.z ); }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract( sin( sn ) * c );\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}";

var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 ) + 0.5;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\treturn texture2D( envMap, uv ).rgb;\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif";

var defaultnormal_vertex = "vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif";

var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif";

var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif";

var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif";

var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif";

var encodings_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );";

var encodings_pars_fragment = "vec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}";

var envmap_fragment = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif";

var envmap_common_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif";

var envmap_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif";

var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif";

var envmap_vertex = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif";

var fog_vertex = "#ifdef USE_FOG\n\tvFogDepth = - mvPosition.z;\n#endif";

var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying float vFogDepth;\n#endif";

var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * vFogDepth * vFogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, vFogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif";

var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float vFogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif";

var gradientmap_pars_fragment = "#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn vec3( texture2D( gradientMap, coord ).r );\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}";

var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel = texture2D( lightMap, vUv2 );\n\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tlightMapIrradiance *= PI;\n\t#endif\n\treflectedLight.indirectDiffuse += lightMapIrradiance;\n#endif";

var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";

var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry.normal );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry.normal );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointLightInfo( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( - dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotLightInfo( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( - dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalLightInfo( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( - dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry.normal );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry.normal );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif";

var lights_pars_begin = "uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in vec3 normal ) {\n\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\treturn irradiance;\n}\nfloat getDistanceAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\t#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tif ( cutoffDistance > 0.0 ) {\n\t\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\t}\n\t\treturn distanceFalloff;\n\t#else\n\t\tif ( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\t\treturn pow( saturate( - lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t\t}\n\t\treturn 1.0;\n\t#endif\n}\nfloat getSpotAttenuation( const in float coneCosine, const in float penumbraCosine, const in float angleCosine ) {\n\treturn smoothstep( coneCosine, penumbraCosine, angleCosine );\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalLightInfo( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tlight.color = directionalLight.color;\n\t\tlight.direction = directionalLight.direction;\n\t\tlight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointLightInfo( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tlight.color = pointLight.color;\n\t\tlight.color *= getDistanceAttenuation( lightDistance, pointLight.distance, pointLight.decay );\n\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotLightInfo( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat angleCos = dot( light.direction, spotLight.direction );\n\t\tfloat spotAttenuation = getSpotAttenuation( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\tif ( spotAttenuation > 0.0 ) {\n\t\t\tfloat lightDistance = length( lVector );\n\t\t\tlight.color = spotLight.color * spotAttenuation;\n\t\t\tlight.color *= getDistanceAttenuation( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t\t} else {\n\t\t\tlight.color = vec3( 0.0 );\n\t\t\tlight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in vec3 normal ) {\n\t\tfloat dotNL = dot( normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\treturn irradiance;\n\t}\n#endif";

var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getIBLIrradiance( const in vec3 normal ) {\n\t\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\tvec3 getIBLRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness ) {\n\t\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 reflectVec;\n\t\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\t\treflectVec = reflect( - viewDir, normal );\n\t\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t\t#else\n\t\t\t\treflectVec = refract( - viewDir, normal, refractionRatio );\n\t\t\t#endif\n\t\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t\treturn envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n#endif";

var lights_toon_fragment = "ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;";

var lights_toon_pars_fragment = "varying vec3 vViewPosition;\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)";

var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;";

var lights_phong_pars_fragment = "varying vec3 vViewPosition;\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_BlinnPhong( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)";

var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.roughness = max( roughnessFactor, 0.0525 );material.roughness += geometryRoughness;\nmaterial.roughness = min( material.roughness, 1.0 );\n#ifdef IOR\n\t#ifdef SPECULAR\n\t\tfloat specularIntensityFactor = specularIntensity;\n\t\tvec3 specularColorFactor = specularColor;\n\t\t#ifdef USE_SPECULARINTENSITYMAP\n\t\t\tspecularIntensityFactor *= texture2D( specularIntensityMap, vUv ).a;\n\t\t#endif\n\t\t#ifdef USE_SPECULARCOLORMAP\n\t\t\tspecularColorFactor *= texture2D( specularColorMap, vUv ).rgb;\n\t\t#endif\n\t\tmaterial.specularF90 = mix( specularIntensityFactor, 1.0, metalnessFactor );\n\t#else\n\t\tfloat specularIntensityFactor = 1.0;\n\t\tvec3 specularColorFactor = vec3( 1.0 );\n\t\tmaterial.specularF90 = 1.0;\n\t#endif\n\tmaterial.specularColor = mix( min( pow2( ( ior - 1.0 ) / ( ior + 1.0 ) ) * specularColorFactor, vec3( 1.0 ) ) * specularIntensityFactor, diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.specularF90 = 1.0;\n#endif\n#ifdef USE_CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\tmaterial.clearcoatF0 = vec3( 0.04 );\n\tmaterial.clearcoatF90 = 1.0;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheenColor;\n\t#ifdef USE_SHEENCOLORMAP\n\t\tmaterial.sheenColor *= texture2D( sheenColorMap, vUv ).rgb;\n\t#endif\n\tmaterial.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 );\n\t#ifdef USE_SHEENROUGHNESSMAP\n\t\tmaterial.sheenRoughness *= texture2D( sheenRoughnessMap, vUv ).a;\n\t#endif\n#endif";

var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat roughness;\n\tvec3 specularColor;\n\tfloat specularF90;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat clearcoat;\n\t\tfloat clearcoatRoughness;\n\t\tvec3 clearcoatF0;\n\t\tfloat clearcoatF90;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tvec3 sheenColor;\n\t\tfloat sheenRoughness;\n\t#endif\n};\nvec3 clearcoatSpecular = vec3( 0.0 );\nvec3 sheenSpecular = vec3( 0.0 );\nfloat IBLSheenBRDF( const in vec3 normal, const in vec3 viewDir, const in float roughness) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat r2 = roughness * roughness;\n\tfloat a = roughness < 0.25 ? -339.2 * r2 + 161.4 * roughness - 25.9 : -8.48 * r2 + 14.3 * roughness - 9.95;\n\tfloat b = roughness < 0.25 ? 44.0 * r2 - 23.7 * roughness + 3.26 : 1.97 * r2 - 3.27 * roughness + 0.72;\n\tfloat DG = exp( a * dotNV + b ) + ( roughness < 0.25 ? 0.0 : 0.1 * ( roughness - 0.25 ) );\n\treturn saturate( DG * RECIPROCAL_PI );\n}\nvec2 DFGApprox( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 fab = vec2( - 1.04, 1.04 ) * a004 + r.zw;\n\treturn fab;\n}\nvec3 EnvironmentBRDF( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\treturn specularColor * fab.x + specularF90 * fab.y;\n}\nvoid computeMultiscattering( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\tvec3 FssEss = specularColor * fab.x + specularF90 * fab.y;\n\tfloat Ess = fab.x + fab.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.roughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(		0, 1,		0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNLcc = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = dotNLcc * directLight.color;\n\t\tclearcoatSpecular += ccIrradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.clearcoatNormal, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * BRDF_Sheen( directLight.direction, geometry.viewDir, geometry.normal, material.sheenColor, material.sheenRoughness );\n\t#endif\n\treflectedLight.directSpecular += irradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularF90, material.roughness );\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatSpecular += clearcoatRadiance * EnvironmentBRDF( geometry.clearcoatNormal, geometry.viewDir, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * material.sheenColor * IBLSheenBRDF( geometry.normal, geometry.viewDir, material.sheenRoughness );\n\t#endif\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tcomputeMultiscattering( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.roughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}";

var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef USE_CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointLightInfo( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotLightInfo( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalLightInfo( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry.normal );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry.normal );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif";

var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getIBLIrradiance( geometry.normal );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getIBLRadiance( geometry.viewDir, geometry.normal, material.roughness );\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatRadiance += getIBLRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness );\n\t#endif\n#endif";

var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif";

var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";

var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif";

var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif";

var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif";

var map_fragment = "#ifdef USE_MAP\n\tvec4 sampledDiffuseColor = texture2D( map, vUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\tsampledDiffuseColor = vec4( mix( pow( sampledDiffuseColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), sampledDiffuseColor.rgb * 0.0773993808, vec3( lessThanEqual( sampledDiffuseColor.rgb, vec3( 0.04045 ) ) ) ), sampledDiffuseColor.w );\n\t#endif\n\tdiffuseColor *= sampledDiffuseColor;\n#endif";

var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif";

var map_particle_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tdiffuseColor *= texture2D( map, uv );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif";

var map_particle_pars_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";

var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif";

var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";

var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) objectNormal += getMorph( gl_VertexID, i, 1, 2 ) * morphTargetInfluences[ i ];\n\t\t}\n\t#else\n\t\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\t\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\t\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\t\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n\t#endif\n#endif";

var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tuniform float morphTargetInfluences[ MORPHTARGETS_COUNT ];\n\t\tuniform sampler2DArray morphTargetsTexture;\n\t\tuniform vec2 morphTargetsTextureSize;\n\t\tvec3 getMorph( const in int vertexIndex, const in int morphTargetIndex, const in int offset, const in int stride ) {\n\t\t\tfloat texelIndex = float( vertexIndex * stride + offset );\n\t\t\tfloat y = floor( texelIndex / morphTargetsTextureSize.x );\n\t\t\tfloat x = texelIndex - y * morphTargetsTextureSize.x;\n\t\t\tvec3 morphUV = vec3( ( x + 0.5 ) / morphTargetsTextureSize.x, y / morphTargetsTextureSize.y, morphTargetIndex );\n\t\t\treturn texture( morphTargetsTexture, morphUV ).xyz;\n\t\t}\n\t#else\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\tuniform float morphTargetInfluences[ 8 ];\n\t\t#else\n\t\t\tuniform float morphTargetInfluences[ 4 ];\n\t\t#endif\n\t#endif\n#endif";

var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\t#ifndef USE_MORPHNORMALS\n\t\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) transformed += getMorph( gl_VertexID, i, 0, 1 ) * morphTargetInfluences[ i ];\n\t\t\t#else\n\t\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) transformed += getMorph( gl_VertexID, i, 0, 2 ) * morphTargetInfluences[ i ];\n\t\t\t#endif\n\t\t}\n\t#else\n\t\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\t\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\t\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\t\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t\t#endif\n\t#endif\n#endif";

var normal_fragment_begin = "float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;";

var normal_fragment_maps = "#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( - vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( - vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif";

var normal_pars_fragment = "#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif";

var normal_pars_vertex = "#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif";

var normal_vertex = "#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif";

var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif";

var clearcoat_normal_fragment_begin = "#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif";

var clearcoat_normal_fragment_maps = "#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif";

var clearcoat_pars_fragment = "#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif";

var output_fragment = "#ifdef OPAQUE\ndiffuseColor.a = 1.0;\n#endif\n#ifdef USE_TRANSMISSION\ndiffuseColor.a *= transmissionAlpha + 0.1;\n#endif\ngl_FragColor = vec4( outgoingLight, diffuseColor.a );";

var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ) );\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w );\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( ( near + viewZ ) * far ) / ( ( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}";

var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif";

var project_vertex = "vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;";

var dithering_fragment = "#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif";

var dithering_pars_fragment = "#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif";

var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif";

var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";

var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t	texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t	f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t	texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t	f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif";

var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif";

var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif";

var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}";

var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";

var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif";

var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif";

var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif";

var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";

var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";

var tonemapping_fragment = "#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif";

var tonemapping_pars_fragment = "#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(	1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,	1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,	1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }";

var transmission_fragment = "#ifdef USE_TRANSMISSION\n\tfloat transmissionAlpha = 1.0;\n\tfloat transmissionFactor = transmission;\n\tfloat thicknessFactor = thickness;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\ttransmissionFactor *= texture2D( transmissionMap, vUv ).r;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tthicknessFactor *= texture2D( thicknessMap, vUv ).g;\n\t#endif\n\tvec3 pos = vWorldPosition;\n\tvec3 v = normalize( cameraPosition - pos );\n\tvec3 n = inverseTransformDirection( normal, viewMatrix );\n\tvec4 transmission = getIBLVolumeRefraction(\n\t\tn, v, roughnessFactor, material.diffuseColor, material.specularColor, material.specularF90,\n\t\tpos, modelMatrix, viewMatrix, projectionMatrix, ior, thicknessFactor,\n\t\tattenuationColor, attenuationDistance );\n\ttotalDiffuse = mix( totalDiffuse, transmission.rgb, transmissionFactor );\n\ttransmissionAlpha = mix( transmissionAlpha, transmission.a, transmissionFactor );\n#endif";

var transmission_pars_fragment = "#ifdef USE_TRANSMISSION\n\tuniform float transmission;\n\tuniform float thickness;\n\tuniform float attenuationDistance;\n\tuniform vec3 attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tuniform sampler2D transmissionMap;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tuniform sampler2D thicknessMap;\n\t#endif\n\tuniform vec2 transmissionSamplerSize;\n\tuniform sampler2D transmissionSamplerMap;\n\tuniform mat4 modelMatrix;\n\tuniform mat4 projectionMatrix;\n\tvarying vec3 vWorldPosition;\n\tvec3 getVolumeTransmissionRay( const in vec3 n, const in vec3 v, const in float thickness, const in float ior, const in mat4 modelMatrix ) {\n\t\tvec3 refractionVector = refract( - v, normalize( n ), 1.0 / ior );\n\t\tvec3 modelScale;\n\t\tmodelScale.x = length( vec3( modelMatrix[ 0 ].xyz ) );\n\t\tmodelScale.y = length( vec3( modelMatrix[ 1 ].xyz ) );\n\t\tmodelScale.z = length( vec3( modelMatrix[ 2 ].xyz ) );\n\t\treturn normalize( refractionVector ) * thickness * modelScale;\n\t}\n\tfloat applyIorToRoughness( const in float roughness, const in float ior ) {\n\t\treturn roughness * clamp( ior * 2.0 - 2.0, 0.0, 1.0 );\n\t}\n\tvec4 getTransmissionSample( const in vec2 fragCoord, const in float roughness, const in float ior ) {\n\t\tfloat framebufferLod = log2( transmissionSamplerSize.x ) * applyIorToRoughness( roughness, ior );\n\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\treturn texture2DLodEXT( transmissionSamplerMap, fragCoord.xy, framebufferLod );\n\t\t#else\n\t\t\treturn texture2D( transmissionSamplerMap, fragCoord.xy, framebufferLod );\n\t\t#endif\n\t}\n\tvec3 applyVolumeAttenuation( const in vec3 radiance, const in float transmissionDistance, const in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tif ( attenuationDistance == 0.0 ) {\n\t\t\treturn radiance;\n\t\t} else {\n\t\t\tvec3 attenuationCoefficient = -log( attenuationColor ) / attenuationDistance;\n\t\t\tvec3 transmittance = exp( - attenuationCoefficient * transmissionDistance );\t\t\treturn transmittance * radiance;\n\t\t}\n\t}\n\tvec4 getIBLVolumeRefraction( const in vec3 n, const in vec3 v, const in float roughness, const in vec3 diffuseColor,\n\t\tconst in vec3 specularColor, const in float specularF90, const in vec3 position, const in mat4 modelMatrix,\n\t\tconst in mat4 viewMatrix, const in mat4 projMatrix, const in float ior, const in float thickness,\n\t\tconst in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tvec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, ior, modelMatrix );\n\t\tvec3 refractedRayExit = position + transmissionRay;\n\t\tvec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n\t\tvec2 refractionCoords = ndcPos.xy / ndcPos.w;\n\t\trefractionCoords += 1.0;\n\t\trefractionCoords /= 2.0;\n\t\tvec4 transmittedLight = getTransmissionSample( refractionCoords, roughness, ior );\n\t\tvec3 attenuatedColor = applyVolumeAttenuation( transmittedLight.rgb, length( transmissionRay ), attenuationColor, attenuationDistance );\n\t\tvec3 F = EnvironmentBRDF( n, v, specularColor, specularF90, roughness );\n\t\treturn vec4( ( 1.0 - F ) * attenuatedColor * diffuseColor, transmittedLight.a );\n\t}\n#endif";

var uv_pars_fragment = "#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif";

var uv_pars_vertex = "#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif";

var uv_vertex = "#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";

var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";

var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif";

var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif";

var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP ) || defined ( USE_TRANSMISSION )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif";

const vertex$g = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}";
const fragment$g = "uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tgl_FragColor = texture2D( t2D, vUv );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";

const vertex$f = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}";
const fragment$f = "#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";

const vertex$e = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}";
const fragment$e = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}";

const vertex$d = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}";
const fragment$d = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}";

const vertex$c = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}";
const fragment$c = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";

const vertex$b = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
const fragment$b = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";

const vertex$a = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#if defined ( USE_ENVMAP ) || defined ( USE_SKINNING )\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinbase_vertex>\n\t\t#include <skinnormal_vertex>\n\t\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}";
const fragment$a = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexel.rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$9 = "#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
const fragment$9 = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$8 = "#define MATCAP\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}";
const fragment$8 = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <fog_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t#else\n\t\tvec4 matcapColor = vec4( vec3( mix( 0.2, 0.8, uv.y ) ), 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$7 = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}";
const fragment$7 = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n\t#ifdef OPAQUE\n\t\tgl_FragColor.a = 1.0;\n\t#endif\n}";

const vertex$6 = "#define PHONG\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
const fragment$6 = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$5 = "#define STANDARD\nvarying vec3 vViewPosition;\n#ifdef USE_TRANSMISSION\n\tvarying vec3 vWorldPosition;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n#ifdef USE_TRANSMISSION\n\tvWorldPosition = worldPosition.xyz;\n#endif\n}";
const fragment$5 = "#define STANDARD\n#ifdef PHYSICAL\n\t#define IOR\n\t#define SPECULAR\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef IOR\n\tuniform float ior;\n#endif\n#ifdef SPECULAR\n\tuniform float specularIntensity;\n\tuniform vec3 specularColor;\n\t#ifdef USE_SPECULARINTENSITYMAP\n\t\tuniform sampler2D specularIntensityMap;\n\t#endif\n\t#ifdef USE_SPECULARCOLORMAP\n\t\tuniform sampler2D specularColorMap;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheenColor;\n\tuniform float sheenRoughness;\n\t#ifdef USE_SHEENCOLORMAP\n\t\tuniform sampler2D sheenColorMap;\n\t#endif\n\t#ifdef USE_SHEENROUGHNESSMAP\n\t\tuniform sampler2D sheenRoughnessMap;\n\t#endif\n#endif\nvarying vec3 vViewPosition;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_physical_pars_fragment>\n#include <transmission_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 totalDiffuse = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse;\n\tvec3 totalSpecular = reflectedLight.directSpecular + reflectedLight.indirectSpecular;\n\t#include <transmission_fragment>\n\tvec3 outgoingLight = totalDiffuse + totalSpecular + totalEmissiveRadiance;\n\t#ifdef USE_SHEEN\n\t\tfloat sheenEnergyComp = 1.0 - 0.157 * max3( material.sheenColor );\n\t\toutgoingLight = outgoingLight * sheenEnergyComp + sheenSpecular;\n\t#endif\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNVcc = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\tvec3 Fcc = F_Schlick( material.clearcoatF0, material.clearcoatF90, dotNVcc );\n\t\toutgoingLight = outgoingLight * ( 1.0 - material.clearcoat * Fcc ) + clearcoatSpecular * material.clearcoat;\n\t#endif\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$4 = "#define TOON\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
const fragment$4 = "#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$3 = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}";
const fragment$3 = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";

const vertex$2 = "#include <common>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
const fragment$2 = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";

const vertex$1 = "uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
const fragment$1 = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";

const ShaderChunk = {
	alphamap_fragment: alphamap_fragment,
	alphamap_pars_fragment: alphamap_pars_fragment,
	alphatest_fragment: alphatest_fragment,
	alphatest_pars_fragment: alphatest_pars_fragment,
	aomap_fragment: aomap_fragment,
	aomap_pars_fragment: aomap_pars_fragment,
	begin_vertex: begin_vertex,
	beginnormal_vertex: beginnormal_vertex,
	bsdfs: bsdfs,
	bumpmap_pars_fragment: bumpmap_pars_fragment,
	clipping_planes_fragment: clipping_planes_fragment,
	clipping_planes_pars_fragment: clipping_planes_pars_fragment,
	clipping_planes_pars_vertex: clipping_planes_pars_vertex,
	clipping_planes_vertex: clipping_planes_vertex,
	color_fragment: color_fragment,
	color_pars_fragment: color_pars_fragment,
	color_pars_vertex: color_pars_vertex,
	color_vertex: color_vertex,
	common: common,
	cube_uv_reflection_fragment: cube_uv_reflection_fragment,
	defaultnormal_vertex: defaultnormal_vertex,
	displacementmap_pars_vertex: displacementmap_pars_vertex,
	displacementmap_vertex: displacementmap_vertex,
	emissivemap_fragment: emissivemap_fragment,
	emissivemap_pars_fragment: emissivemap_pars_fragment,
	encodings_fragment: encodings_fragment,
	encodings_pars_fragment: encodings_pars_fragment,
	envmap_fragment: envmap_fragment,
	envmap_common_pars_fragment: envmap_common_pars_fragment,
	envmap_pars_fragment: envmap_pars_fragment,
	envmap_pars_vertex: envmap_pars_vertex,
	envmap_physical_pars_fragment: envmap_physical_pars_fragment,
	envmap_vertex: envmap_vertex,
	fog_vertex: fog_vertex,
	fog_pars_vertex: fog_pars_vertex,
	fog_fragment: fog_fragment,
	fog_pars_fragment: fog_pars_fragment,
	gradientmap_pars_fragment: gradientmap_pars_fragment,
	lightmap_fragment: lightmap_fragment,
	lightmap_pars_fragment: lightmap_pars_fragment,
	lights_lambert_vertex: lights_lambert_vertex,
	lights_pars_begin: lights_pars_begin,
	lights_toon_fragment: lights_toon_fragment,
	lights_toon_pars_fragment: lights_toon_pars_fragment,
	lights_phong_fragment: lights_phong_fragment,
	lights_phong_pars_fragment: lights_phong_pars_fragment,
	lights_physical_fragment: lights_physical_fragment,
	lights_physical_pars_fragment: lights_physical_pars_fragment,
	lights_fragment_begin: lights_fragment_begin,
	lights_fragment_maps: lights_fragment_maps,
	lights_fragment_end: lights_fragment_end,
	logdepthbuf_fragment: logdepthbuf_fragment,
	logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
	logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
	logdepthbuf_vertex: logdepthbuf_vertex,
	map_fragment: map_fragment,
	map_pars_fragment: map_pars_fragment,
	map_particle_fragment: map_particle_fragment,
	map_particle_pars_fragment: map_particle_pars_fragment,
	metalnessmap_fragment: metalnessmap_fragment,
	metalnessmap_pars_fragment: metalnessmap_pars_fragment,
	morphnormal_vertex: morphnormal_vertex,
	morphtarget_pars_vertex: morphtarget_pars_vertex,
	morphtarget_vertex: morphtarget_vertex,
	normal_fragment_begin: normal_fragment_begin,
	normal_fragment_maps: normal_fragment_maps,
	normal_pars_fragment: normal_pars_fragment,
	normal_pars_vertex: normal_pars_vertex,
	normal_vertex: normal_vertex,
	normalmap_pars_fragment: normalmap_pars_fragment,
	clearcoat_normal_fragment_begin: clearcoat_normal_fragment_begin,
	clearcoat_normal_fragment_maps: clearcoat_normal_fragment_maps,
	clearcoat_pars_fragment: clearcoat_pars_fragment,
	output_fragment: output_fragment,
	packing: packing,
	premultiplied_alpha_fragment: premultiplied_alpha_fragment,
	project_vertex: project_vertex,
	dithering_fragment: dithering_fragment,
	dithering_pars_fragment: dithering_pars_fragment,
	roughnessmap_fragment: roughnessmap_fragment,
	roughnessmap_pars_fragment: roughnessmap_pars_fragment,
	shadowmap_pars_fragment: shadowmap_pars_fragment,
	shadowmap_pars_vertex: shadowmap_pars_vertex,
	shadowmap_vertex: shadowmap_vertex,
	shadowmask_pars_fragment: shadowmask_pars_fragment,
	skinbase_vertex: skinbase_vertex,
	skinning_pars_vertex: skinning_pars_vertex,
	skinning_vertex: skinning_vertex,
	skinnormal_vertex: skinnormal_vertex,
	specularmap_fragment: specularmap_fragment,
	specularmap_pars_fragment: specularmap_pars_fragment,
	tonemapping_fragment: tonemapping_fragment,
	tonemapping_pars_fragment: tonemapping_pars_fragment,
	transmission_fragment: transmission_fragment,
	transmission_pars_fragment: transmission_pars_fragment,
	uv_pars_fragment: uv_pars_fragment,
	uv_pars_vertex: uv_pars_vertex,
	uv_vertex: uv_vertex,
	uv2_pars_fragment: uv2_pars_fragment,
	uv2_pars_vertex: uv2_pars_vertex,
	uv2_vertex: uv2_vertex,
	worldpos_vertex: worldpos_vertex,
	background_vert: vertex$g,
	background_frag: fragment$g,
	cube_vert: vertex$f,
	cube_frag: fragment$f,
	depth_vert: vertex$e,
	depth_frag: fragment$e,
	distanceRGBA_vert: vertex$d,
	distanceRGBA_frag: fragment$d,
	equirect_vert: vertex$c,
	equirect_frag: fragment$c,
	linedashed_vert: vertex$b,
	linedashed_frag: fragment$b,
	meshbasic_vert: vertex$a,
	meshbasic_frag: fragment$a,
	meshlambert_vert: vertex$9,
	meshlambert_frag: fragment$9,
	meshmatcap_vert: vertex$8,
	meshmatcap_frag: fragment$8,
	meshnormal_vert: vertex$7,
	meshnormal_frag: fragment$7,
	meshphong_vert: vertex$6,
	meshphong_frag: fragment$6,
	meshphysical_vert: vertex$5,
	meshphysical_frag: fragment$5,
	meshtoon_vert: vertex$4,
	meshtoon_frag: fragment$4,
	points_vert: vertex$3,
	points_frag: fragment$3,
	shadow_vert: vertex$2,
	shadow_frag: fragment$2,
	sprite_vert: vertex$1,
	sprite_frag: fragment$1
};

/**
 * Uniforms library for shared webgl shaders
 */

const UniformsLib = {
	common: {
		diffuse: {
			value: new Color(0xffffff)
		},
		opacity: {
			value: 1.0
		},
		map: {
			value: null
		},
		uvTransform: {
			value: new Matrix3()
		},
		uv2Transform: {
			value: new Matrix3()
		},
		alphaMap: {
			value: null
		},
		alphaTest: {
			value: 0
		}
	},
	specularmap: {
		specularMap: {
			value: null
		}
	},
	envmap: {
		envMap: {
			value: null
		},
		flipEnvMap: {
			value: -1
		},
		reflectivity: {
			value: 1.0
		},
		// basic, lambert, phong
		ior: {
			value: 1.5
		},
		// standard, physical
		refractionRatio: {
			value: 0.98
		}
	},
	aomap: {
		aoMap: {
			value: null
		},
		aoMapIntensity: {
			value: 1
		}
	},
	lightmap: {
		lightMap: {
			value: null
		},
		lightMapIntensity: {
			value: 1
		}
	},
	emissivemap: {
		emissiveMap: {
			value: null
		}
	},
	bumpmap: {
		bumpMap: {
			value: null
		},
		bumpScale: {
			value: 1
		}
	},
	normalmap: {
		normalMap: {
			value: null
		},
		normalScale: {
			value: new Vector2(1, 1)
		}
	},
	displacementmap: {
		displacementMap: {
			value: null
		},
		displacementScale: {
			value: 1
		},
		displacementBias: {
			value: 0
		}
	},
	roughnessmap: {
		roughnessMap: {
			value: null
		}
	},
	metalnessmap: {
		metalnessMap: {
			value: null
		}
	},
	gradientmap: {
		gradientMap: {
			value: null
		}
	},
	fog: {
		fogDensity: {
			value: 0.00025
		},
		fogNear: {
			value: 1
		},
		fogFar: {
			value: 2000
		},
		fogColor: {
			value: new Color(0xffffff)
		}
	},
	lights: {
		ambientLightColor: {
			value: []
		},
		lightProbe: {
			value: []
		},
		directionalLights: {
			value: [],
			properties: {
				direction: {},
				color: {}
			}
		},
		directionalLightShadows: {
			value: [],
			properties: {
				shadowBias: {},
				shadowNormalBias: {},
				shadowRadius: {},
				shadowMapSize: {}
			}
		},
		directionalShadowMap: {
			value: []
		},
		directionalShadowMatrix: {
			value: []
		},
		spotLights: {
			value: [],
			properties: {
				color: {},
				position: {},
				direction: {},
				distance: {},
				coneCos: {},
				penumbraCos: {},
				decay: {}
			}
		},
		spotLightShadows: {
			value: [],
			properties: {
				shadowBias: {},
				shadowNormalBias: {},
				shadowRadius: {},
				shadowMapSize: {}
			}
		},
		spotShadowMap: {
			value: []
		},
		spotShadowMatrix: {
			value: []
		},
		pointLights: {
			value: [],
			properties: {
				color: {},
				position: {},
				decay: {},
				distance: {}
			}
		},
		pointLightShadows: {
			value: [],
			properties: {
				shadowBias: {},
				shadowNormalBias: {},
				shadowRadius: {},
				shadowMapSize: {},
				shadowCameraNear: {},
				shadowCameraFar: {}
			}
		},
		pointShadowMap: {
			value: []
		},
		pointShadowMatrix: {
			value: []
		},
		hemisphereLights: {
			value: [],
			properties: {
				direction: {},
				skyColor: {},
				groundColor: {}
			}
		},
		// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
		rectAreaLights: {
			value: [],
			properties: {
				color: {},
				position: {},
				width: {},
				height: {}
			}
		},
		ltc_1: {
			value: null
		},
		ltc_2: {
			value: null
		}
	},
	points: {
		diffuse: {
			value: new Color(0xffffff)
		},
		opacity: {
			value: 1.0
		},
		size: {
			value: 1.0
		},
		scale: {
			value: 1.0
		},
		map: {
			value: null
		},
		alphaMap: {
			value: null
		},
		alphaTest: {
			value: 0
		},
		uvTransform: {
			value: new Matrix3()
		}
	},
	sprite: {
		diffuse: {
			value: new Color(0xffffff)
		},
		opacity: {
			value: 1.0
		},
		center: {
			value: new Vector2(0.5, 0.5)
		},
		rotation: {
			value: 0.0
		},
		map: {
			value: null
		},
		alphaMap: {
			value: null
		},
		alphaTest: {
			value: 0
		},
		uvTransform: {
			value: new Matrix3()
		}
	}
};

const ShaderLib = {
	basic: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.specularmap, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.fog]),
		vertexShader: ShaderChunk.meshbasic_vert,
		fragmentShader: ShaderChunk.meshbasic_frag
	},
	lambert: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.specularmap, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.fog, UniformsLib.lights, {
			emissive: {
				value: new Color(0x000000)
			}
		}]),
		vertexShader: ShaderChunk.meshlambert_vert,
		fragmentShader: ShaderChunk.meshlambert_frag
	},
	phong: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.specularmap, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.fog, UniformsLib.lights, {
			emissive: {
				value: new Color(0x000000)
			},
			specular: {
				value: new Color(0x111111)
			},
			shininess: {
				value: 30
			}
		}]),
		vertexShader: ShaderChunk.meshphong_vert,
		fragmentShader: ShaderChunk.meshphong_frag
	},
	standard: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.envmap, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.roughnessmap, UniformsLib.metalnessmap, UniformsLib.fog, UniformsLib.lights, {
			emissive: {
				value: new Color(0x000000)
			},
			roughness: {
				value: 1.0
			},
			metalness: {
				value: 0.0
			},
			envMapIntensity: {
				value: 1
			} // temporary

		}]),
		vertexShader: ShaderChunk.meshphysical_vert,
		fragmentShader: ShaderChunk.meshphysical_frag
	},
	toon: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.aomap, UniformsLib.lightmap, UniformsLib.emissivemap, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.gradientmap, UniformsLib.fog, UniformsLib.lights, {
			emissive: {
				value: new Color(0x000000)
			}
		}]),
		vertexShader: ShaderChunk.meshtoon_vert,
		fragmentShader: ShaderChunk.meshtoon_frag
	},
	matcap: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, UniformsLib.fog, {
			matcap: {
				value: null
			}
		}]),
		vertexShader: ShaderChunk.meshmatcap_vert,
		fragmentShader: ShaderChunk.meshmatcap_frag
	},
	points: {
		uniforms: mergeUniforms([UniformsLib.points, UniformsLib.fog]),
		vertexShader: ShaderChunk.points_vert,
		fragmentShader: ShaderChunk.points_frag
	},
	dashed: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.fog, {
			scale: {
				value: 1
			},
			dashSize: {
				value: 1
			},
			totalSize: {
				value: 2
			}
		}]),
		vertexShader: ShaderChunk.linedashed_vert,
		fragmentShader: ShaderChunk.linedashed_frag
	},
	depth: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.displacementmap]),
		vertexShader: ShaderChunk.depth_vert,
		fragmentShader: ShaderChunk.depth_frag
	},
	normal: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.bumpmap, UniformsLib.normalmap, UniformsLib.displacementmap, {
			opacity: {
				value: 1.0
			}
		}]),
		vertexShader: ShaderChunk.meshnormal_vert,
		fragmentShader: ShaderChunk.meshnormal_frag
	},
	sprite: {
		uniforms: mergeUniforms([UniformsLib.sprite, UniformsLib.fog]),
		vertexShader: ShaderChunk.sprite_vert,
		fragmentShader: ShaderChunk.sprite_frag
	},
	background: {
		uniforms: {
			uvTransform: {
				value: new Matrix3()
			},
			t2D: {
				value: null
			}
		},
		vertexShader: ShaderChunk.background_vert,
		fragmentShader: ShaderChunk.background_frag
	},

	/* -------------------------------------------------------------------------
	//	Cube map shader
	 ------------------------------------------------------------------------- */
	cube: {
		uniforms: mergeUniforms([UniformsLib.envmap, {
			opacity: {
				value: 1.0
			}
		}]),
		vertexShader: ShaderChunk.cube_vert,
		fragmentShader: ShaderChunk.cube_frag
	},
	equirect: {
		uniforms: {
			tEquirect: {
				value: null
			}
		},
		vertexShader: ShaderChunk.equirect_vert,
		fragmentShader: ShaderChunk.equirect_frag
	},
	distanceRGBA: {
		uniforms: mergeUniforms([UniformsLib.common, UniformsLib.displacementmap, {
			referencePosition: {
				value: new Vector3()
			},
			nearDistance: {
				value: 1
			},
			farDistance: {
				value: 1000
			}
		}]),
		vertexShader: ShaderChunk.distanceRGBA_vert,
		fragmentShader: ShaderChunk.distanceRGBA_frag
	},
	shadow: {
		uniforms: mergeUniforms([UniformsLib.lights, UniformsLib.fog, {
			color: {
				value: new Color(0x00000)
			},
			opacity: {
				value: 1.0
			}
		}]),
		vertexShader: ShaderChunk.shadow_vert,
		fragmentShader: ShaderChunk.shadow_frag
	}
};
ShaderLib.physical = {
	uniforms: mergeUniforms([ShaderLib.standard.uniforms, {
		clearcoat: {
			value: 0
		},
		clearcoatMap: {
			value: null
		},
		clearcoatRoughness: {
			value: 0
		},
		clearcoatRoughnessMap: {
			value: null
		},
		clearcoatNormalScale: {
			value: new Vector2(1, 1)
		},
		clearcoatNormalMap: {
			value: null
		},
		sheen: {
			value: 0
		},
		sheenColor: {
			value: new Color(0x000000)
		},
		sheenColorMap: {
			value: null
		},
		sheenRoughness: {
			value: 1
		},
		sheenRoughnessMap: {
			value: null
		},
		transmission: {
			value: 0
		},
		transmissionMap: {
			value: null
		},
		transmissionSamplerSize: {
			value: new Vector2()
		},
		transmissionSamplerMap: {
			value: null
		},
		thickness: {
			value: 0
		},
		thicknessMap: {
			value: null
		},
		attenuationDistance: {
			value: 0
		},
		attenuationColor: {
			value: new Color(0x000000)
		},
		specularIntensity: {
			value: 1
		},
		specularIntensityMap: {
			value: null
		},
		specularColor: {
			value: new Color(1, 1, 1)
		},
		specularColorMap: {
			value: null
		}
	}]),
	vertexShader: ShaderChunk.meshphysical_vert,
	fragmentShader: ShaderChunk.meshphysical_frag
};

function WebGLBackground(renderer, cubemaps, state, objects, alpha, premultipliedAlpha) {
	const clearColor = new Color(0x000000);
	let clearAlpha = alpha === true ? 0 : 1;
	let planeMesh;
	let boxMesh;
	let currentBackground = null;
	let currentBackgroundVersion = 0;
	let currentTonemapping = null;

	function render(renderList, scene) {
		let forceClear = false;
		let background = scene.isScene === true ? scene.background : null;

		if (background && background.isTexture) {
			background = cubemaps.get(background);
		} // Ignore background in AR
		// TODO: Reconsider this.


		const xr = renderer.xr;
		const session = xr.getSession && xr.getSession();

		if (session && session.environmentBlendMode === 'additive') {
			background = null;
		}

		if (background === null) {
			setClear(clearColor, clearAlpha);
		} else if (background && background.isColor) {
			setClear(background, 1);
			forceClear = true;
		}

		if (renderer.autoClear || forceClear) {
			renderer.clear(renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil);
		}

		if (background && (background.isCubeTexture || background.mapping === CubeUVReflectionMapping)) {
			if (boxMesh === undefined) {
				boxMesh = new Mesh(new BoxGeometry(1, 1, 1), new ShaderMaterial({
					name: 'BackgroundCubeMaterial',
					uniforms: cloneUniforms(ShaderLib.cube.uniforms),
					vertexShader: ShaderLib.cube.vertexShader,
					fragmentShader: ShaderLib.cube.fragmentShader,
					side: BackSide,
					depthTest: false,
					depthWrite: false,
					fog: false
				}));
				boxMesh.geometry.deleteAttribute('normal');
				boxMesh.geometry.deleteAttribute('uv');

				boxMesh.onBeforeRender = function (renderer, scene, camera) {
					this.matrixWorld.copyPosition(camera.matrixWorld);
				}; // enable code injection for non-built-in material


				Object.defineProperty(boxMesh.material, 'envMap', {
					get: function () {
						return this.uniforms.envMap.value;
					}
				});
				objects.update(boxMesh);
			}

			boxMesh.material.uniforms.envMap.value = background;
			boxMesh.material.uniforms.flipEnvMap.value = background.isCubeTexture && background.isRenderTargetTexture === false ? -1 : 1;

			if (currentBackground !== background || currentBackgroundVersion !== background.version || currentTonemapping !== renderer.toneMapping) {
				boxMesh.material.needsUpdate = true;
				currentBackground = background;
				currentBackgroundVersion = background.version;
				currentTonemapping = renderer.toneMapping;
			} // push to the pre-sorted opaque render list


			renderList.unshift(boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null);
		} else if (background && background.isTexture) {
			if (planeMesh === undefined) {
				planeMesh = new Mesh(new PlaneGeometry(2, 2), new ShaderMaterial({
					name: 'BackgroundMaterial',
					uniforms: cloneUniforms(ShaderLib.background.uniforms),
					vertexShader: ShaderLib.background.vertexShader,
					fragmentShader: ShaderLib.background.fragmentShader,
					side: FrontSide,
					depthTest: false,
					depthWrite: false,
					fog: false
				}));
				planeMesh.geometry.deleteAttribute('normal'); // enable code injection for non-built-in material

				Object.defineProperty(planeMesh.material, 'map', {
					get: function () {
						return this.uniforms.t2D.value;
					}
				});
				objects.update(planeMesh);
			}

			planeMesh.material.uniforms.t2D.value = background;

			if (background.matrixAutoUpdate === true) {
				background.updateMatrix();
			}

			planeMesh.material.uniforms.uvTransform.value.copy(background.matrix);

			if (currentBackground !== background || currentBackgroundVersion !== background.version || currentTonemapping !== renderer.toneMapping) {
				planeMesh.material.needsUpdate = true;
				currentBackground = background;
				currentBackgroundVersion = background.version;
				currentTonemapping = renderer.toneMapping;
			} // push to the pre-sorted opaque render list


			renderList.unshift(planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null);
		}
	}

	function setClear(color, alpha) {
		state.buffers.color.setClear(color.r, color.g, color.b, alpha, premultipliedAlpha);
	}

	return {
		getClearColor: function () {
			return clearColor;
		},
		setClearColor: function (color, alpha = 1) {
			clearColor.set(color);
			clearAlpha = alpha;
			setClear(clearColor, clearAlpha);
		},
		getClearAlpha: function () {
			return clearAlpha;
		},
		setClearAlpha: function (alpha) {
			clearAlpha = alpha;
			setClear(clearColor, clearAlpha);
		},
		render: render
	};
}

function WebGLBindingStates(gl, extensions, attributes, capabilities) {
	const maxVertexAttributes = gl.getParameter(gl.MAX_VERTEX_ATTRIBS);
	const extension = capabilities.isWebGL2 ? null : extensions.get('OES_vertex_array_object');
	const vaoAvailable = capabilities.isWebGL2 || extension !== null;
	const bindingStates = {};
	const defaultState = createBindingState(null);
	let currentState = defaultState;

	function setup(object, material, program, geometry, index) {
		let updateBuffers = false;

		if (vaoAvailable) {
			const state = getBindingState(geometry, program, material);

			if (currentState !== state) {
				currentState = state;
				bindVertexArrayObject(currentState.object);
			}

			updateBuffers = needsUpdate(geometry, index);
			if (updateBuffers) saveCache(geometry, index);
		} else {
			const wireframe = material.wireframe === true;

			if (currentState.geometry !== geometry.id || currentState.program !== program.id || currentState.wireframe !== wireframe) {
				currentState.geometry = geometry.id;
				currentState.program = program.id;
				currentState.wireframe = wireframe;
				updateBuffers = true;
			}
		}

		if (object.isInstancedMesh === true) {
			updateBuffers = true;
		}

		if (index !== null) {
			attributes.update(index, gl.ELEMENT_ARRAY_BUFFER);
		}

		if (updateBuffers) {
			setupVertexAttributes(object, material, program, geometry);

			if (index !== null) {
				gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, attributes.get(index).buffer);
			}
		}
	}

	function createVertexArrayObject() {
		if (capabilities.isWebGL2) return gl.createVertexArray();
		return extension.createVertexArrayOES();
	}

	function bindVertexArrayObject(vao) {
		if (capabilities.isWebGL2) return gl.bindVertexArray(vao);
		return extension.bindVertexArrayOES(vao);
	}

	function deleteVertexArrayObject(vao) {
		if (capabilities.isWebGL2) return gl.deleteVertexArray(vao);
		return extension.deleteVertexArrayOES(vao);
	}

	function getBindingState(geometry, program, material) {
		const wireframe = material.wireframe === true;
		let programMap = bindingStates[geometry.id];

		if (programMap === undefined) {
			programMap = {};
			bindingStates[geometry.id] = programMap;
		}

		let stateMap = programMap[program.id];

		if (stateMap === undefined) {
			stateMap = {};
			programMap[program.id] = stateMap;
		}

		let state = stateMap[wireframe];

		if (state === undefined) {
			state = createBindingState(createVertexArrayObject());
			stateMap[wireframe] = state;
		}

		return state;
	}

	function createBindingState(vao) {
		const newAttributes = [];
		const enabledAttributes = [];
		const attributeDivisors = [];

		for (let i = 0; i < maxVertexAttributes; i++) {
			newAttributes[i] = 0;
			enabledAttributes[i] = 0;
			attributeDivisors[i] = 0;
		}

		return {
			// for backward compatibility on non-VAO support browser
			geometry: null,
			program: null,
			wireframe: false,
			newAttributes: newAttributes,
			enabledAttributes: enabledAttributes,
			attributeDivisors: attributeDivisors,
			object: vao,
			attributes: {},
			index: null
		};
	}

	function needsUpdate(geometry, index) {
		const cachedAttributes = currentState.attributes;
		const geometryAttributes = geometry.attributes;
		let attributesNum = 0;

		for (const key in geometryAttributes) {
			const cachedAttribute = cachedAttributes[key];
			const geometryAttribute = geometryAttributes[key];
			if (cachedAttribute === undefined) return true;
			if (cachedAttribute.attribute !== geometryAttribute) return true;
			if (cachedAttribute.data !== geometryAttribute.data) return true;
			attributesNum++;
		}

		if (currentState.attributesNum !== attributesNum) return true;
		if (currentState.index !== index) return true;
		return false;
	}

	function saveCache(geometry, index) {
		const cache = {};
		const attributes = geometry.attributes;
		let attributesNum = 0;

		for (const key in attributes) {
			const attribute = attributes[key];
			const data = {};
			data.attribute = attribute;

			if (attribute.data) {
				data.data = attribute.data;
			}

			cache[key] = data;
			attributesNum++;
		}

		currentState.attributes = cache;
		currentState.attributesNum = attributesNum;
		currentState.index = index;
	}

	function initAttributes() {
		const newAttributes = currentState.newAttributes;

		for (let i = 0, il = newAttributes.length; i < il; i++) {
			newAttributes[i] = 0;
		}
	}

	function enableAttribute(attribute) {
		enableAttributeAndDivisor(attribute, 0);
	}

	function enableAttributeAndDivisor(attribute, meshPerAttribute) {
		const newAttributes = currentState.newAttributes;
		const enabledAttributes = currentState.enabledAttributes;
		const attributeDivisors = currentState.attributeDivisors;
		newAttributes[attribute] = 1;

		if (enabledAttributes[attribute] === 0) {
			gl.enableVertexAttribArray(attribute);
			enabledAttributes[attribute] = 1;
		}

		if (attributeDivisors[attribute] !== meshPerAttribute) {
			const extension = capabilities.isWebGL2 ? gl : extensions.get('ANGLE_instanced_arrays');
			extension[capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE'](attribute, meshPerAttribute);
			attributeDivisors[attribute] = meshPerAttribute;
		}
	}

	function disableUnusedAttributes() {
		const newAttributes = currentState.newAttributes;
		const enabledAttributes = currentState.enabledAttributes;

		for (let i = 0, il = enabledAttributes.length; i < il; i++) {
			if (enabledAttributes[i] !== newAttributes[i]) {
				gl.disableVertexAttribArray(i);
				enabledAttributes[i] = 0;
			}
		}
	}

	function vertexAttribPointer(index, size, type, normalized, stride, offset) {
		if (capabilities.isWebGL2 === true && (type === gl.INT || type === gl.UNSIGNED_INT)) {
			gl.vertexAttribIPointer(index, size, type, stride, offset);
		} else {
			gl.vertexAttribPointer(index, size, type, normalized, stride, offset);
		}
	}

	function setupVertexAttributes(object, material, program, geometry) {
		if (capabilities.isWebGL2 === false && (object.isInstancedMesh || geometry.isInstancedBufferGeometry)) {
			if (extensions.get('ANGLE_instanced_arrays') === null) return;
		}

		initAttributes();
		const geometryAttributes = geometry.attributes;
		const programAttributes = program.getAttributes();
		const materialDefaultAttributeValues = material.defaultAttributeValues;

		for (const name in programAttributes) {
			const programAttribute = programAttributes[name];

			if (programAttribute.location >= 0) {
				let geometryAttribute = geometryAttributes[name];

				if (geometryAttribute === undefined) {
					if (name === 'instanceMatrix' && object.instanceMatrix) geometryAttribute = object.instanceMatrix;
					if (name === 'instanceColor' && object.instanceColor) geometryAttribute = object.instanceColor;
				}

				if (geometryAttribute !== undefined) {
					const normalized = geometryAttribute.normalized;
					const size = geometryAttribute.itemSize;
					const attribute = attributes.get(geometryAttribute); // TODO Attribute may not be available on context restore

					if (attribute === undefined) continue;
					const buffer = attribute.buffer;
					const type = attribute.type;
					const bytesPerElement = attribute.bytesPerElement;

					if (geometryAttribute.isInterleavedBufferAttribute) {
						const data = geometryAttribute.data;
						const stride = data.stride;
						const offset = geometryAttribute.offset;

						if (data && data.isInstancedInterleavedBuffer) {
							for (let i = 0; i < programAttribute.locationSize; i++) {
								enableAttributeAndDivisor(programAttribute.location + i, data.meshPerAttribute);
							}

							if (object.isInstancedMesh !== true && geometry._maxInstanceCount === undefined) {
								geometry._maxInstanceCount = data.meshPerAttribute * data.count;
							}
						} else {
							for (let i = 0; i < programAttribute.locationSize; i++) {
								enableAttribute(programAttribute.location + i);
							}
						}

						gl.bindBuffer(gl.ARRAY_BUFFER, buffer);

						for (let i = 0; i < programAttribute.locationSize; i++) {
							vertexAttribPointer(programAttribute.location + i, size / programAttribute.locationSize, type, normalized, stride * bytesPerElement, (offset + size / programAttribute.locationSize * i) * bytesPerElement);
						}
					} else {
						if (geometryAttribute.isInstancedBufferAttribute) {
							for (let i = 0; i < programAttribute.locationSize; i++) {
								enableAttributeAndDivisor(programAttribute.location + i, geometryAttribute.meshPerAttribute);
							}

							if (object.isInstancedMesh !== true && geometry._maxInstanceCount === undefined) {
								geometry._maxInstanceCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;
							}
						} else {
							for (let i = 0; i < programAttribute.locationSize; i++) {
								enableAttribute(programAttribute.location + i);
							}
						}

						gl.bindBuffer(gl.ARRAY_BUFFER, buffer);

						for (let i = 0; i < programAttribute.locationSize; i++) {
							vertexAttribPointer(programAttribute.location + i, size / programAttribute.locationSize, type, normalized, size * bytesPerElement, size / programAttribute.locationSize * i * bytesPerElement);
						}
					}
				} else if (materialDefaultAttributeValues !== undefined) {
					const value = materialDefaultAttributeValues[name];

					if (value !== undefined) {
						switch (value.length) {
							case 2:
								gl.vertexAttrib2fv(programAttribute.location, value);
								break;

							case 3:
								gl.vertexAttrib3fv(programAttribute.location, value);
								break;

							case 4:
								gl.vertexAttrib4fv(programAttribute.location, value);
								break;

							default:
								gl.vertexAttrib1fv(programAttribute.location, value);
						}
					}
				}
			}
		}

		disableUnusedAttributes();
	}

	function dispose() {
		reset();

		for (const geometryId in bindingStates) {
			const programMap = bindingStates[geometryId];

			for (const programId in programMap) {
				const stateMap = programMap[programId];

				for (const wireframe in stateMap) {
					deleteVertexArrayObject(stateMap[wireframe].object);
					delete stateMap[wireframe];
				}

				delete programMap[programId];
			}

			delete bindingStates[geometryId];
		}
	}

	function releaseStatesOfGeometry(geometry) {
		if (bindingStates[geometry.id] === undefined) return;
		const programMap = bindingStates[geometry.id];

		for (const programId in programMap) {
			const stateMap = programMap[programId];

			for (const wireframe in stateMap) {
				deleteVertexArrayObject(stateMap[wireframe].object);
				delete stateMap[wireframe];
			}

			delete programMap[programId];
		}

		delete bindingStates[geometry.id];
	}

	function releaseStatesOfProgram(program) {
		for (const geometryId in bindingStates) {
			const programMap = bindingStates[geometryId];
			if (programMap[program.id] === undefined) continue;
			const stateMap = programMap[program.id];

			for (const wireframe in stateMap) {
				deleteVertexArrayObject(stateMap[wireframe].object);
				delete stateMap[wireframe];
			}

			delete programMap[program.id];
		}
	}

	function reset() {
		resetDefaultState();
		if (currentState === defaultState) return;
		currentState = defaultState;
		bindVertexArrayObject(currentState.object);
	} // for backward-compatilibity


	function resetDefaultState() {
		defaultState.geometry = null;
		defaultState.program = null;
		defaultState.wireframe = false;
	}

	return {
		setup: setup,
		reset: reset,
		resetDefaultState: resetDefaultState,
		dispose: dispose,
		releaseStatesOfGeometry: releaseStatesOfGeometry,
		releaseStatesOfProgram: releaseStatesOfProgram,
		initAttributes: initAttributes,
		enableAttribute: enableAttribute,
		disableUnusedAttributes: disableUnusedAttributes
	};
}

function WebGLBufferRenderer(gl, extensions, info, capabilities) {
	const isWebGL2 = capabilities.isWebGL2;
	let mode;

	function setMode(value) {
		mode = value;
	}

	function render(start, count) {
		gl.drawArrays(mode, start, count);
		info.update(count, mode, 1);
	}

	function renderInstances(start, count, primcount) {
		if (primcount === 0) return;
		let extension, methodName;

		if (isWebGL2) {
			extension = gl;
			methodName = 'drawArraysInstanced';
		} else {
			extension = extensions.get('ANGLE_instanced_arrays');
			methodName = 'drawArraysInstancedANGLE';

			if (extension === null) {
				console.error('THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.');
				return;
			}
		}

		extension[methodName](mode, start, count, primcount);
		info.update(count, mode, primcount);
	} //


	this.setMode = setMode;
	this.render = render;
	this.renderInstances = renderInstances;
}

function WebGLCapabilities(gl, extensions, parameters) {
	let maxAnisotropy;

	function getMaxAnisotropy() {
		if (maxAnisotropy !== undefined) return maxAnisotropy;

		if (extensions.has('EXT_texture_filter_anisotropic') === true) {
			const extension = extensions.get('EXT_texture_filter_anisotropic');
			maxAnisotropy = gl.getParameter(extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT);
		} else {
			maxAnisotropy = 0;
		}

		return maxAnisotropy;
	}

	function getMaxPrecision(precision) {
		if (precision === 'highp') {
			if (gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.HIGH_FLOAT).precision > 0 && gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.HIGH_FLOAT).precision > 0) {
				return 'highp';
			}

			precision = 'mediump';
		}

		if (precision === 'mediump') {
			if (gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.MEDIUM_FLOAT).precision > 0 && gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT).precision > 0) {
				return 'mediump';
			}
		}

		return 'lowp';
	}

	const isWebGL2 = typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext || typeof WebGL2ComputeRenderingContext !== 'undefined' && gl instanceof WebGL2ComputeRenderingContext;
	let precision = parameters.precision !== undefined ? parameters.precision : 'highp';
	const maxPrecision = getMaxPrecision(precision);

	if (maxPrecision !== precision) {
		console.warn('THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.');
		precision = maxPrecision;
	}

	const drawBuffers = isWebGL2 || extensions.has('WEBGL_draw_buffers');
	const logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;
	const maxTextures = gl.getParameter(gl.MAX_TEXTURE_IMAGE_UNITS);
	const maxVertexTextures = gl.getParameter(gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS);
	const maxTextureSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
	const maxCubemapSize = gl.getParameter(gl.MAX_CUBE_MAP_TEXTURE_SIZE);
	const maxAttributes = gl.getParameter(gl.MAX_VERTEX_ATTRIBS);
	const maxVertexUniforms = gl.getParameter(gl.MAX_VERTEX_UNIFORM_VECTORS);
	const maxVaryings = gl.getParameter(gl.MAX_VARYING_VECTORS);
	const maxFragmentUniforms = gl.getParameter(gl.MAX_FRAGMENT_UNIFORM_VECTORS);
	const vertexTextures = maxVertexTextures > 0;
	const floatFragmentTextures = isWebGL2 || extensions.has('OES_texture_float');
	const floatVertexTextures = vertexTextures && floatFragmentTextures;
	const maxSamples = isWebGL2 ? gl.getParameter(gl.MAX_SAMPLES) : 0;
	return {
		isWebGL2: isWebGL2,
		drawBuffers: drawBuffers,
		getMaxAnisotropy: getMaxAnisotropy,
		getMaxPrecision: getMaxPrecision,
		precision: precision,
		logarithmicDepthBuffer: logarithmicDepthBuffer,
		maxTextures: maxTextures,
		maxVertexTextures: maxVertexTextures,
		maxTextureSize: maxTextureSize,
		maxCubemapSize: maxCubemapSize,
		maxAttributes: maxAttributes,
		maxVertexUniforms: maxVertexUniforms,
		maxVaryings: maxVaryings,
		maxFragmentUniforms: maxFragmentUniforms,
		vertexTextures: vertexTextures,
		floatFragmentTextures: floatFragmentTextures,
		floatVertexTextures: floatVertexTextures,
		maxSamples: maxSamples
	};
}

function WebGLClipping(properties) {
	const scope = this;
	let globalState = null,
			numGlobalPlanes = 0,
			localClippingEnabled = false,
			renderingShadows = false;
	const plane = new Plane(),
				viewNormalMatrix = new Matrix3(),
				uniform = {
		value: null,
		needsUpdate: false
	};
	this.uniform = uniform;
	this.numPlanes = 0;
	this.numIntersection = 0;

	this.init = function (planes, enableLocalClipping, camera) {
		const enabled = planes.length !== 0 || enableLocalClipping || // enable state of previous frame - the clipping code has to
		// run another frame in order to reset the state:
		numGlobalPlanes !== 0 || localClippingEnabled;
		localClippingEnabled = enableLocalClipping;
		globalState = projectPlanes(planes, camera, 0);
		numGlobalPlanes = planes.length;
		return enabled;
	};

	this.beginShadows = function () {
		renderingShadows = true;
		projectPlanes(null);
	};

	this.endShadows = function () {
		renderingShadows = false;
		resetGlobalState();
	};

	this.setState = function (material, camera, useCache) {
		const planes = material.clippingPlanes,
					clipIntersection = material.clipIntersection,
					clipShadows = material.clipShadows;
		const materialProperties = properties.get(material);

		if (!localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && !clipShadows) {
			// there's no local clipping
			if (renderingShadows) {
				// there's no global clipping
				projectPlanes(null);
			} else {
				resetGlobalState();
			}
		} else {
			const nGlobal = renderingShadows ? 0 : numGlobalPlanes,
						lGlobal = nGlobal * 4;
			let dstArray = materialProperties.clippingState || null;
			uniform.value = dstArray; // ensure unique state

			dstArray = projectPlanes(planes, camera, lGlobal, useCache);

			for (let i = 0; i !== lGlobal; ++i) {
				dstArray[i] = globalState[i];
			}

			materialProperties.clippingState = dstArray;
			this.numIntersection = clipIntersection ? this.numPlanes : 0;
			this.numPlanes += nGlobal;
		}
	};

	function resetGlobalState() {
		if (uniform.value !== globalState) {
			uniform.value = globalState;
			uniform.needsUpdate = numGlobalPlanes > 0;
		}

		scope.numPlanes = numGlobalPlanes;
		scope.numIntersection = 0;
	}

	function projectPlanes(planes, camera, dstOffset, skipTransform) {
		const nPlanes = planes !== null ? planes.length : 0;
		let dstArray = null;

		if (nPlanes !== 0) {
			dstArray = uniform.value;

			if (skipTransform !== true || dstArray === null) {
				const flatSize = dstOffset + nPlanes * 4,
							viewMatrix = camera.matrixWorldInverse;
				viewNormalMatrix.getNormalMatrix(viewMatrix);

				if (dstArray === null || dstArray.length < flatSize) {
					dstArray = new Float32Array(flatSize);
				}

				for (let i = 0, i4 = dstOffset; i !== nPlanes; ++i, i4 += 4) {
					plane.copy(planes[i]).applyMatrix4(viewMatrix, viewNormalMatrix);
					plane.normal.toArray(dstArray, i4);
					dstArray[i4 + 3] = plane.constant;
				}
			}

			uniform.value = dstArray;
			uniform.needsUpdate = true;
		}

		scope.numPlanes = nPlanes;
		scope.numIntersection = 0;
		return dstArray;
	}
}

function WebGLCubeMaps(renderer) {
	let cubemaps = new WeakMap();

	function mapTextureMapping(texture, mapping) {
		if (mapping === EquirectangularReflectionMapping) {
			texture.mapping = CubeReflectionMapping;
		} else if (mapping === EquirectangularRefractionMapping) {
			texture.mapping = CubeRefractionMapping;
		}

		return texture;
	}

	function get(texture) {
		if (texture && texture.isTexture && texture.isRenderTargetTexture === false) {
			const mapping = texture.mapping;

			if (mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping) {
				if (cubemaps.has(texture)) {
					const cubemap = cubemaps.get(texture).texture;
					return mapTextureMapping(cubemap, texture.mapping);
				} else {
					const image = texture.image;

					if (image && image.height > 0) {
						const renderTarget = new WebGLCubeRenderTarget(image.height / 2);
						renderTarget.fromEquirectangularTexture(renderer, texture);
						cubemaps.set(texture, renderTarget);
						texture.addEventListener('dispose', onTextureDispose);
						return mapTextureMapping(renderTarget.texture, texture.mapping);
					} else {
						// image not yet ready. try the conversion next frame
						return null;
					}
				}
			}
		}

		return texture;
	}

	function onTextureDispose(event) {
		const texture = event.target;
		texture.removeEventListener('dispose', onTextureDispose);
		const cubemap = cubemaps.get(texture);

		if (cubemap !== undefined) {
			cubemaps.delete(texture);
			cubemap.dispose();
		}
	}

	function dispose() {
		cubemaps = new WeakMap();
	}

	return {
		get: get,
		dispose: dispose
	};
}

class OrthographicCamera extends Camera {
	constructor(left = -1, right = 1, top = 1, bottom = -1, near = 0.1, far = 2000) {
		super();
		this.type = 'OrthographicCamera';
		this.zoom = 1;
		this.view = null;
		this.left = left;
		this.right = right;
		this.top = top;
		this.bottom = bottom;
		this.near = near;
		this.far = far;
		this.updateProjectionMatrix();
	}

	copy(source, recursive) {
		super.copy(source, recursive);
		this.left = source.left;
		this.right = source.right;
		this.top = source.top;
		this.bottom = source.bottom;
		this.near = source.near;
		this.far = source.far;
		this.zoom = source.zoom;
		this.view = source.view === null ? null : Object.assign({}, source.view);
		return this;
	}

	setViewOffset(fullWidth, fullHeight, x, y, width, height) {
		if (this.view === null) {
			this.view = {
				enabled: true,
				fullWidth: 1,
				fullHeight: 1,
				offsetX: 0,
				offsetY: 0,
				width: 1,
				height: 1
			};
		}

		this.view.enabled = true;
		this.view.fullWidth = fullWidth;
		this.view.fullHeight = fullHeight;
		this.view.offsetX = x;
		this.view.offsetY = y;
		this.view.width = width;
		this.view.height = height;
		this.updateProjectionMatrix();
	}

	clearViewOffset() {
		if (this.view !== null) {
			this.view.enabled = false;
		}

		this.updateProjectionMatrix();
	}

	updateProjectionMatrix() {
		const dx = (this.right - this.left) / (2 * this.zoom);
		const dy = (this.top - this.bottom) / (2 * this.zoom);
		const cx = (this.right + this.left) / 2;
		const cy = (this.top + this.bottom) / 2;
		let left = cx - dx;
		let right = cx + dx;
		let top = cy + dy;
		let bottom = cy - dy;

		if (this.view !== null && this.view.enabled) {
			const scaleW = (this.right - this.left) / this.view.fullWidth / this.zoom;
			const scaleH = (this.top - this.bottom) / this.view.fullHeight / this.zoom;
			left += scaleW * this.view.offsetX;
			right = left + scaleW * this.view.width;
			top -= scaleH * this.view.offsetY;
			bottom = top - scaleH * this.view.height;
		}

		this.projectionMatrix.makeOrthographic(left, right, top, bottom, this.near, this.far);
		this.projectionMatrixInverse.copy(this.projectionMatrix).invert();
	}

	toJSON(meta) {
		const data = super.toJSON(meta);
		data.object.zoom = this.zoom;
		data.object.left = this.left;
		data.object.right = this.right;
		data.object.top = this.top;
		data.object.bottom = this.bottom;
		data.object.near = this.near;
		data.object.far = this.far;
		if (this.view !== null) data.object.view = Object.assign({}, this.view);
		return data;
	}

}

OrthographicCamera.prototype.isOrthographicCamera = true;

class RawShaderMaterial extends ShaderMaterial {
	constructor(parameters) {
		super(parameters);
		this.type = 'RawShaderMaterial';
	}

}

RawShaderMaterial.prototype.isRawShaderMaterial = true;

const LOD_MIN = 4;
const LOD_MAX = 8;
const SIZE_MAX = Math.pow(2, LOD_MAX); // The standard deviations (radians) associated with the extra mips. These are
// chosen to approximate a Trowbridge-Reitz distribution function times the
// geometric shadowing function. These sigma values squared must match the
// variance #defines in cube_uv_reflection_fragment.glsl.js.

const EXTRA_LOD_SIGMA = [0.125, 0.215, 0.35, 0.446, 0.526, 0.582];
const TOTAL_LODS = LOD_MAX - LOD_MIN + 1 + EXTRA_LOD_SIGMA.length; // The maximum length of the blur for loop. Smaller sigmas will use fewer
// samples and exit early, but not recompile the shader.

const MAX_SAMPLES = 20;

const _flatCamera = /*@__PURE__*/new OrthographicCamera();

const {
	_lodPlanes,
	_sizeLods,
	_sigmas
} = /*@__PURE__*/_createPlanes();

const _clearColor = /*@__PURE__*/new Color();

let _oldTarget = null; // Golden Ratio

const PHI = (1 + Math.sqrt(5)) / 2;
const INV_PHI = 1 / PHI; // Vertices of a dodecahedron (except the opposites, which represent the
// same axis), used as axis directions evenly spread on a sphere.

const _axisDirections = [/*@__PURE__*/new Vector3(1, 1, 1), /*@__PURE__*/new Vector3(-1, 1, 1), /*@__PURE__*/new Vector3(1, 1, -1), /*@__PURE__*/new Vector3(-1, 1, -1), /*@__PURE__*/new Vector3(0, PHI, INV_PHI), /*@__PURE__*/new Vector3(0, PHI, -INV_PHI), /*@__PURE__*/new Vector3(INV_PHI, 0, PHI), /*@__PURE__*/new Vector3(-INV_PHI, 0, PHI), /*@__PURE__*/new Vector3(PHI, INV_PHI, 0), /*@__PURE__*/new Vector3(-PHI, INV_PHI, 0)];
/**
 * This class generates a Prefiltered, Mipmapped Radiance Environment Map
 * (PMREM) from a cubeMap environment texture. This allows different levels of
 * blur to be quickly accessed based on material roughness. It is packed into a
 * special CubeUV format that allows us to perform custom interpolation so that
 * we can support nonlinear formats such as RGBE. Unlike a traditional mipmap
 * chain, it only goes down to the LOD_MIN level (above), and then creates extra
 * even more filtered 'mips' at the same LOD_MIN resolution, associated with
 * higher roughness levels. In this way we maintain resolution to smoothly
 * interpolate diffuse lighting while limiting sampling computation.
 *
 * Paper: Fast, Accurate Image-Based Lighting
 * https://drive.google.com/file/d/15y8r_UpKlU9SvV4ILb0C3qCPecS8pvLz/view
*/

class PMREMGenerator {
	constructor(renderer) {
		this._renderer = renderer;
		this._pingPongRenderTarget = null;
		this._blurMaterial = _getBlurShader(MAX_SAMPLES);
		this._equirectShader = null;
		this._cubemapShader = null;

		this._compileMaterial(this._blurMaterial);
	}
	/**
	 * Generates a PMREM from a supplied Scene, which can be faster than using an
	 * image if networking bandwidth is low. Optional sigma specifies a blur radius
	 * in radians to be applied to the scene before PMREM generation. Optional near
	 * and far planes ensure the scene is rendered in its entirety (the cubeCamera
	 * is placed at the origin).
	 */


	fromScene(scene, sigma = 0, near = 0.1, far = 100) {
		_oldTarget = this._renderer.getRenderTarget();

		const cubeUVRenderTarget = this._allocateTargets();

		this._sceneToCubeUV(scene, near, far, cubeUVRenderTarget);

		if (sigma > 0) {
			this._blur(cubeUVRenderTarget, 0, 0, sigma);
		}

		this._applyPMREM(cubeUVRenderTarget);

		this._cleanup(cubeUVRenderTarget);

		return cubeUVRenderTarget;
	}
	/**
	 * Generates a PMREM from an equirectangular texture, which can be either LDR
	 * or HDR. The ideal input image size is 1k (1024 x 512),
	 * as this matches best with the 256 x 256 cubemap output.
	 */


	fromEquirectangular(equirectangular, renderTarget = null) {
		return this._fromTexture(equirectangular, renderTarget);
	}
	/**
	 * Generates a PMREM from an cubemap texture, which can be either LDR
	 * or HDR. The ideal input cube size is 256 x 256,
	 * as this matches best with the 256 x 256 cubemap output.
	 */


	fromCubemap(cubemap, renderTarget = null) {
		return this._fromTexture(cubemap, renderTarget);
	}
	/**
	 * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during
	 * your texture's network fetch for increased concurrency.
	 */


	compileCubemapShader() {
		if (this._cubemapShader === null) {
			this._cubemapShader = _getCubemapShader();

			this._compileMaterial(this._cubemapShader);
		}
	}
	/**
	 * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during
	 * your texture's network fetch for increased concurrency.
	 */


	compileEquirectangularShader() {
		if (this._equirectShader === null) {
			this._equirectShader = _getEquirectShader();

			this._compileMaterial(this._equirectShader);
		}
	}
	/**
	 * Disposes of the PMREMGenerator's internal memory. Note that PMREMGenerator is a static class,
	 * so you should not need more than one PMREMGenerator object. If you do, calling dispose() on
	 * one of them will cause any others to also become unusable.
	 */


	dispose() {
		this._blurMaterial.dispose();

		if (this._pingPongRenderTarget !== null) this._pingPongRenderTarget.dispose();
		if (this._cubemapShader !== null) this._cubemapShader.dispose();
		if (this._equirectShader !== null) this._equirectShader.dispose();

		for (let i = 0; i < _lodPlanes.length; i++) {
			_lodPlanes[i].dispose();
		}
	} // private interface


	_cleanup(outputTarget) {
		this._renderer.setRenderTarget(_oldTarget);

		outputTarget.scissorTest = false;

		_setViewport(outputTarget, 0, 0, outputTarget.width, outputTarget.height);
	}

	_fromTexture(texture, renderTarget) {
		_oldTarget = this._renderer.getRenderTarget();

		const cubeUVRenderTarget = renderTarget || this._allocateTargets(texture);

		this._textureToCubeUV(texture, cubeUVRenderTarget);

		this._applyPMREM(cubeUVRenderTarget);

		this._cleanup(cubeUVRenderTarget);

		return cubeUVRenderTarget;
	}

	_allocateTargets(texture) {
		// warning: null texture is valid
		const params = {
			magFilter: LinearFilter,
			minFilter: LinearFilter,
			generateMipmaps: false,
			type: HalfFloatType,
			format: RGBAFormat,
			encoding: LinearEncoding,
			depthBuffer: false
		};

		const cubeUVRenderTarget = _createRenderTarget(params);

		cubeUVRenderTarget.depthBuffer = texture ? false : true;

		if (this._pingPongRenderTarget === null) {
			this._pingPongRenderTarget = _createRenderTarget(params);
		}

		return cubeUVRenderTarget;
	}

	_compileMaterial(material) {
		const tmpMesh = new Mesh(_lodPlanes[0], material);

		this._renderer.compile(tmpMesh, _flatCamera);
	}

	_sceneToCubeUV(scene, near, far, cubeUVRenderTarget) {
		const fov = 90;
		const aspect = 1;
		const cubeCamera = new PerspectiveCamera(fov, aspect, near, far);
		const upSign = [1, -1, 1, 1, 1, 1];
		const forwardSign = [1, 1, 1, -1, -1, -1];
		const renderer = this._renderer;
		const originalAutoClear = renderer.autoClear;
		const toneMapping = renderer.toneMapping;
		renderer.getClearColor(_clearColor);
		renderer.toneMapping = NoToneMapping;
		renderer.autoClear = false;
		const backgroundMaterial = new MeshBasicMaterial({
			name: 'PMREM.Background',
			side: BackSide,
			depthWrite: false,
			depthTest: false
		});
		const backgroundBox = new Mesh(new BoxGeometry(), backgroundMaterial);
		let useSolidColor = false;
		const background = scene.background;

		if (background) {
			if (background.isColor) {
				backgroundMaterial.color.copy(background);
				scene.background = null;
				useSolidColor = true;
			}
		} else {
			backgroundMaterial.color.copy(_clearColor);
			useSolidColor = true;
		}

		for (let i = 0; i < 6; i++) {
			const col = i % 3;

			if (col === 0) {
				cubeCamera.up.set(0, upSign[i], 0);
				cubeCamera.lookAt(forwardSign[i], 0, 0);
			} else if (col === 1) {
				cubeCamera.up.set(0, 0, upSign[i]);
				cubeCamera.lookAt(0, forwardSign[i], 0);
			} else {
				cubeCamera.up.set(0, upSign[i], 0);
				cubeCamera.lookAt(0, 0, forwardSign[i]);
			}

			_setViewport(cubeUVRenderTarget, col * SIZE_MAX, i > 2 ? SIZE_MAX : 0, SIZE_MAX, SIZE_MAX);

			renderer.setRenderTarget(cubeUVRenderTarget);

			if (useSolidColor) {
				renderer.render(backgroundBox, cubeCamera);
			}

			renderer.render(scene, cubeCamera);
		}

		backgroundBox.geometry.dispose();
		backgroundBox.material.dispose();
		renderer.toneMapping = toneMapping;
		renderer.autoClear = originalAutoClear;
		scene.background = background;
	}

	_textureToCubeUV(texture, cubeUVRenderTarget) {
		const renderer = this._renderer;
		const isCubeTexture = texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping;

		if (isCubeTexture) {
			if (this._cubemapShader === null) {
				this._cubemapShader = _getCubemapShader();
			}

			this._cubemapShader.uniforms.flipEnvMap.value = texture.isRenderTargetTexture === false ? -1 : 1;
		} else {
			if (this._equirectShader === null) {
				this._equirectShader = _getEquirectShader();
			}
		}

		const material = isCubeTexture ? this._cubemapShader : this._equirectShader;
		const mesh = new Mesh(_lodPlanes[0], material);
		const uniforms = material.uniforms;
		uniforms['envMap'].value = texture;

		if (!isCubeTexture) {
			uniforms['texelSize'].value.set(1.0 / texture.image.width, 1.0 / texture.image.height);
		}

		_setViewport(cubeUVRenderTarget, 0, 0, 3 * SIZE_MAX, 2 * SIZE_MAX);

		renderer.setRenderTarget(cubeUVRenderTarget);
		renderer.render(mesh, _flatCamera);
	}

	_applyPMREM(cubeUVRenderTarget) {
		const renderer = this._renderer;
		const autoClear = renderer.autoClear;
		renderer.autoClear = false;

		for (let i = 1; i < TOTAL_LODS; i++) {
			const sigma = Math.sqrt(_sigmas[i] * _sigmas[i] - _sigmas[i - 1] * _sigmas[i - 1]);
			const poleAxis = _axisDirections[(i - 1) % _axisDirections.length];

			this._blur(cubeUVRenderTarget, i - 1, i, sigma, poleAxis);
		}

		renderer.autoClear = autoClear;
	}
	/**
	 * This is a two-pass Gaussian blur for a cubemap. Normally this is done
	 * vertically and horizontally, but this breaks down on a cube. Here we apply
	 * the blur latitudinally (around the poles), and then longitudinally (towards
	 * the poles) to approximate the orthogonally-separable blur. It is least
	 * accurate at the poles, but still does a decent job.
	 */


	_blur(cubeUVRenderTarget, lodIn, lodOut, sigma, poleAxis) {
		const pingPongRenderTarget = this._pingPongRenderTarget;

		this._halfBlur(cubeUVRenderTarget, pingPongRenderTarget, lodIn, lodOut, sigma, 'latitudinal', poleAxis);

		this._halfBlur(pingPongRenderTarget, cubeUVRenderTarget, lodOut, lodOut, sigma, 'longitudinal', poleAxis);
	}

	_halfBlur(targetIn, targetOut, lodIn, lodOut, sigmaRadians, direction, poleAxis) {
		const renderer = this._renderer;
		const blurMaterial = this._blurMaterial;

		if (direction !== 'latitudinal' && direction !== 'longitudinal') {
			console.error('blur direction must be either latitudinal or longitudinal!');
		} // Number of standard deviations at which to cut off the discrete approximation.


		const STANDARD_DEVIATIONS = 3;
		const blurMesh = new Mesh(_lodPlanes[lodOut], blurMaterial);
		const blurUniforms = blurMaterial.uniforms;
		const pixels = _sizeLods[lodIn] - 1;
		const radiansPerPixel = isFinite(sigmaRadians) ? Math.PI / (2 * pixels) : 2 * Math.PI / (2 * MAX_SAMPLES - 1);
		const sigmaPixels = sigmaRadians / radiansPerPixel;
		const samples = isFinite(sigmaRadians) ? 1 + Math.floor(STANDARD_DEVIATIONS * sigmaPixels) : MAX_SAMPLES;

		if (samples > MAX_SAMPLES) {
			console.warn(`sigmaRadians, ${sigmaRadians}, is too large and will clip, as it requested ${samples} samples when the maximum is set to ${MAX_SAMPLES}`);
		}

		const weights = [];
		let sum = 0;

		for (let i = 0; i < MAX_SAMPLES; ++i) {
			const x = i / sigmaPixels;
			const weight = Math.exp(-x * x / 2);
			weights.push(weight);

			if (i === 0) {
				sum += weight;
			} else if (i < samples) {
				sum += 2 * weight;
			}
		}

		for (let i = 0; i < weights.length; i++) {
			weights[i] = weights[i] / sum;
		}

		blurUniforms['envMap'].value = targetIn.texture;
		blurUniforms['samples'].value = samples;
		blurUniforms['weights'].value = weights;
		blurUniforms['latitudinal'].value = direction === 'latitudinal';

		if (poleAxis) {
			blurUniforms['poleAxis'].value = poleAxis;
		}

		blurUniforms['dTheta'].value = radiansPerPixel;
		blurUniforms['mipInt'].value = LOD_MAX - lodIn;
		const outputSize = _sizeLods[lodOut];
		const x = 3 * Math.max(0, SIZE_MAX - 2 * outputSize);
		const y = (lodOut === 0 ? 0 : 2 * SIZE_MAX) + 2 * outputSize * (lodOut > LOD_MAX - LOD_MIN ? lodOut - LOD_MAX + LOD_MIN : 0);

		_setViewport(targetOut, x, y, 3 * outputSize, 2 * outputSize);

		renderer.setRenderTarget(targetOut);
		renderer.render(blurMesh, _flatCamera);
	}

}

function _createPlanes() {
	const _lodPlanes = [];
	const _sizeLods = [];
	const _sigmas = [];
	let lod = LOD_MAX;

	for (let i = 0; i < TOTAL_LODS; i++) {
		const sizeLod = Math.pow(2, lod);

		_sizeLods.push(sizeLod);

		let sigma = 1.0 / sizeLod;

		if (i > LOD_MAX - LOD_MIN) {
			sigma = EXTRA_LOD_SIGMA[i - LOD_MAX + LOD_MIN - 1];
		} else if (i === 0) {
			sigma = 0;
		}

		_sigmas.push(sigma);

		const texelSize = 1.0 / (sizeLod - 1);
		const min = -texelSize / 2;
		const max = 1 + texelSize / 2;
		const uv1 = [min, min, max, min, max, max, min, min, max, max, min, max];
		const cubeFaces = 6;
		const vertices = 6;
		const positionSize = 3;
		const uvSize = 2;
		const faceIndexSize = 1;
		const position = new Float32Array(positionSize * vertices * cubeFaces);
		const uv = new Float32Array(uvSize * vertices * cubeFaces);
		const faceIndex = new Float32Array(faceIndexSize * vertices * cubeFaces);

		for (let face = 0; face < cubeFaces; face++) {
			const x = face % 3 * 2 / 3 - 1;
			const y = face > 2 ? 0 : -1;
			const coordinates = [x, y, 0, x + 2 / 3, y, 0, x + 2 / 3, y + 1, 0, x, y, 0, x + 2 / 3, y + 1, 0, x, y + 1, 0];
			position.set(coordinates, positionSize * vertices * face);
			uv.set(uv1, uvSize * vertices * face);
			const fill = [face, face, face, face, face, face];
			faceIndex.set(fill, faceIndexSize * vertices * face);
		}

		const planes = new BufferGeometry();
		planes.setAttribute('position', new BufferAttribute(position, positionSize));
		planes.setAttribute('uv', new BufferAttribute(uv, uvSize));
		planes.setAttribute('faceIndex', new BufferAttribute(faceIndex, faceIndexSize));

		_lodPlanes.push(planes);

		if (lod > LOD_MIN) {
			lod--;
		}
	}

	return {
		_lodPlanes,
		_sizeLods,
		_sigmas
	};
}

function _createRenderTarget(params) {
	const cubeUVRenderTarget = new WebGLRenderTarget(3 * SIZE_MAX, 3 * SIZE_MAX, params);
	cubeUVRenderTarget.texture.mapping = CubeUVReflectionMapping;
	cubeUVRenderTarget.texture.name = 'PMREM.cubeUv';
	cubeUVRenderTarget.scissorTest = true;
	return cubeUVRenderTarget;
}

function _setViewport(target, x, y, width, height) {
	target.viewport.set(x, y, width, height);
	target.scissor.set(x, y, width, height);
}

function _getBlurShader(maxSamples) {
	const weights = new Float32Array(maxSamples);
	const poleAxis = new Vector3(0, 1, 0);
	const shaderMaterial = new RawShaderMaterial({
		name: 'SphericalGaussianBlur',
		defines: {
			'n': maxSamples
		},
		uniforms: {
			'envMap': {
				value: null
			},
			'samples': {
				value: 1
			},
			'weights': {
				value: weights
			},
			'latitudinal': {
				value: false
			},
			'dTheta': {
				value: 0
			},
			'mipInt': {
				value: 0
			},
			'poleAxis': {
				value: poleAxis
			}
		},
		vertexShader: _getCommonVertexShader(),
		fragmentShader:
		/* glsl */
		`

			precision mediump float;
			precision mediump int;

			varying vec3 vOutputDirection;

			uniform sampler2D envMap;
			uniform int samples;
			uniform float weights[ n ];
			uniform bool latitudinal;
			uniform float dTheta;
			uniform float mipInt;
			uniform vec3 poleAxis;

			#define ENVMAP_TYPE_CUBE_UV
			#include <cube_uv_reflection_fragment>

			vec3 getSample( float theta, vec3 axis ) {

				float cosTheta = cos( theta );
				// Rodrigues' axis-angle rotation
				vec3 sampleDirection = vOutputDirection * cosTheta
					+ cross( axis, vOutputDirection ) * sin( theta )
					+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );

				return bilinearCubeUV( envMap, sampleDirection, mipInt );

			}

			void main() {

				vec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );

				if ( all( equal( axis, vec3( 0.0 ) ) ) ) {

					axis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );

				}

				axis = normalize( axis );

				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
				gl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );

				for ( int i = 1; i < n; i++ ) {

					if ( i >= samples ) {

						break;

					}

					float theta = dTheta * float( i );
					gl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );
					gl_FragColor.rgb += weights[ i ] * getSample( theta, axis );

				}

			}
		`,
		blending: NoBlending,
		depthTest: false,
		depthWrite: false
	});
	return shaderMaterial;
}

function _getEquirectShader() {
	const texelSize = new Vector2(1, 1);
	const shaderMaterial = new RawShaderMaterial({
		name: 'EquirectangularToCubeUV',
		uniforms: {
			'envMap': {
				value: null
			},
			'texelSize': {
				value: texelSize
			}
		},
		vertexShader: _getCommonVertexShader(),
		fragmentShader:
		/* glsl */
		`

			precision mediump float;
			precision mediump int;

			varying vec3 vOutputDirection;

			uniform sampler2D envMap;
			uniform vec2 texelSize;

			#include <common>

			void main() {

				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );

				vec3 outputDirection = normalize( vOutputDirection );
				vec2 uv = equirectUv( outputDirection );

				vec2 f = fract( uv / texelSize - 0.5 );
				uv -= f * texelSize;
				vec3 tl = texture2D ( envMap, uv ).rgb;
				uv.x += texelSize.x;
				vec3 tr = texture2D ( envMap, uv ).rgb;
				uv.y += texelSize.y;
				vec3 br = texture2D ( envMap, uv ).rgb;
				uv.x -= texelSize.x;
				vec3 bl = texture2D ( envMap, uv ).rgb;

				vec3 tm = mix( tl, tr, f.x );
				vec3 bm = mix( bl, br, f.x );
				gl_FragColor.rgb = mix( tm, bm, f.y );

			}
		`,
		blending: NoBlending,
		depthTest: false,
		depthWrite: false
	});
	return shaderMaterial;
}

function _getCubemapShader() {
	const shaderMaterial = new RawShaderMaterial({
		name: 'CubemapToCubeUV',
		uniforms: {
			'envMap': {
				value: null
			},
			'flipEnvMap': {
				value: -1
			}
		},
		vertexShader: _getCommonVertexShader(),
		fragmentShader:
		/* glsl */
		`

			precision mediump float;
			precision mediump int;

			uniform float flipEnvMap;

			varying vec3 vOutputDirection;

			uniform samplerCube envMap;

			void main() {

				gl_FragColor = textureCube( envMap, vec3( flipEnvMap * vOutputDirection.x, vOutputDirection.yz ) );

			}
		`,
		blending: NoBlending,
		depthTest: false,
		depthWrite: false
	});
	return shaderMaterial;
}

function _getCommonVertexShader() {
	return (
		/* glsl */
		`

		precision mediump float;
		precision mediump int;

		attribute vec3 position;
		attribute vec2 uv;
		attribute float faceIndex;

		varying vec3 vOutputDirection;

		// RH coordinate system; PMREM face-indexing convention
		vec3 getDirection( vec2 uv, float face ) {

			uv = 2.0 * uv - 1.0;

			vec3 direction = vec3( uv, 1.0 );

			if ( face == 0.0 ) {

				direction = direction.zyx; // ( 1, v, u ) pos x

			} else if ( face == 1.0 ) {

				direction = direction.xzy;
				direction.xz *= -1.0; // ( -u, 1, -v ) pos y

			} else if ( face == 2.0 ) {

				direction.x *= -1.0; // ( -u, v, 1 ) pos z

			} else if ( face == 3.0 ) {

				direction = direction.zyx;
				direction.xz *= -1.0; // ( -1, v, -u ) neg x

			} else if ( face == 4.0 ) {

				direction = direction.xzy;
				direction.xy *= -1.0; // ( -u, -1, v ) neg y

			} else if ( face == 5.0 ) {

				direction.z *= -1.0; // ( u, v, -1 ) neg z

			}

			return direction;

		}

		void main() {

			vOutputDirection = getDirection( uv, faceIndex );
			gl_Position = vec4( position, 1.0 );

		}
	`
	);
}

function WebGLCubeUVMaps(renderer) {
	let cubeUVmaps = new WeakMap();
	let pmremGenerator = null;

	function get(texture) {
		if (texture && texture.isTexture) {
			const mapping = texture.mapping;
			const isEquirectMap = mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping;
			const isCubeMap = mapping === CubeReflectionMapping || mapping === CubeRefractionMapping; // equirect/cube map to cubeUV conversion

			if (isEquirectMap || isCubeMap) {
				if (texture.isRenderTargetTexture && texture.needsPMREMUpdate === true) {
					texture.needsPMREMUpdate = false;
					let renderTarget = cubeUVmaps.get(texture);
					if (pmremGenerator === null) pmremGenerator = new PMREMGenerator(renderer);
					renderTarget = isEquirectMap ? pmremGenerator.fromEquirectangular(texture, renderTarget) : pmremGenerator.fromCubemap(texture, renderTarget);
					cubeUVmaps.set(texture, renderTarget);
					return renderTarget.texture;
				} else {
					if (cubeUVmaps.has(texture)) {
						return cubeUVmaps.get(texture).texture;
					} else {
						const image = texture.image;

						if (isEquirectMap && image && image.height > 0 || isCubeMap && image && isCubeTextureComplete(image)) {
							if (pmremGenerator === null) pmremGenerator = new PMREMGenerator(renderer);
							const renderTarget = isEquirectMap ? pmremGenerator.fromEquirectangular(texture) : pmremGenerator.fromCubemap(texture);
							cubeUVmaps.set(texture, renderTarget);
							texture.addEventListener('dispose', onTextureDispose);
							return renderTarget.texture;
						} else {
							// image not yet ready. try the conversion next frame
							return null;
						}
					}
				}
			}
		}

		return texture;
	}

	function isCubeTextureComplete(image) {
		let count = 0;
		const length = 6;

		for (let i = 0; i < length; i++) {
			if (image[i] !== undefined) count++;
		}

		return count === length;
	}

	function onTextureDispose(event) {
		const texture = event.target;
		texture.removeEventListener('dispose', onTextureDispose);
		const cubemapUV = cubeUVmaps.get(texture);

		if (cubemapUV !== undefined) {
			cubeUVmaps.delete(texture);
			cubemapUV.dispose();
		}
	}

	function dispose() {
		cubeUVmaps = new WeakMap();

		if (pmremGenerator !== null) {
			pmremGenerator.dispose();
			pmremGenerator = null;
		}
	}

	return {
		get: get,
		dispose: dispose
	};
}

function WebGLExtensions(gl) {
	const extensions = {};

	function getExtension(name) {
		if (extensions[name] !== undefined) {
			return extensions[name];
		}

		let extension;

		switch (name) {
			case 'WEBGL_depth_texture':
				extension = gl.getExtension('WEBGL_depth_texture') || gl.getExtension('MOZ_WEBGL_depth_texture') || gl.getExtension('WEBKIT_WEBGL_depth_texture');
				break;

			case 'EXT_texture_filter_anisotropic':
				extension = gl.getExtension('EXT_texture_filter_anisotropic') || gl.getExtension('MOZ_EXT_texture_filter_anisotropic') || gl.getExtension('WEBKIT_EXT_texture_filter_anisotropic');
				break;

			case 'WEBGL_compressed_texture_s3tc':
				extension = gl.getExtension('WEBGL_compressed_texture_s3tc') || gl.getExtension('MOZ_WEBGL_compressed_texture_s3tc') || gl.getExtension('WEBKIT_WEBGL_compressed_texture_s3tc');
				break;

			case 'WEBGL_compressed_texture_pvrtc':
				extension = gl.getExtension('WEBGL_compressed_texture_pvrtc') || gl.getExtension('WEBKIT_WEBGL_compressed_texture_pvrtc');
				break;

			default:
				extension = gl.getExtension(name);
		}

		extensions[name] = extension;
		return extension;
	}

	return {
		has: function (name) {
			return getExtension(name) !== null;
		},
		init: function (capabilities) {
			if (capabilities.isWebGL2) {
				getExtension('EXT_color_buffer_float');
			} else {
				getExtension('WEBGL_depth_texture');
				getExtension('OES_texture_float');
				getExtension('OES_texture_half_float');
				getExtension('OES_texture_half_float_linear');
				getExtension('OES_standard_derivatives');
				getExtension('OES_element_index_uint');
				getExtension('OES_vertex_array_object');
				getExtension('ANGLE_instanced_arrays');
			}

			getExtension('OES_texture_float_linear');
			getExtension('EXT_color_buffer_half_float');
			getExtension('WEBGL_multisampled_render_to_texture');
		},
		get: function (name) {
			const extension = getExtension(name);

			if (extension === null) {
				console.warn('THREE.WebGLRenderer: ' + name + ' extension not supported.');
			}

			return extension;
		}
	};
}

function WebGLGeometries(gl, attributes, info, bindingStates) {
	const geometries = {};
	const wireframeAttributes = new WeakMap();

	function onGeometryDispose(event) {
		const geometry = event.target;

		if (geometry.index !== null) {
			attributes.remove(geometry.index);
		}

		for (const name in geometry.attributes) {
			attributes.remove(geometry.attributes[name]);
		}

		geometry.removeEventListener('dispose', onGeometryDispose);
		delete geometries[geometry.id];
		const attribute = wireframeAttributes.get(geometry);

		if (attribute) {
			attributes.remove(attribute);
			wireframeAttributes.delete(geometry);
		}

		bindingStates.releaseStatesOfGeometry(geometry);

		if (geometry.isInstancedBufferGeometry === true) {
			delete geometry._maxInstanceCount;
		} //


		info.memory.geometries--;
	}

	function get(object, geometry) {
		if (geometries[geometry.id] === true) return geometry;
		geometry.addEventListener('dispose', onGeometryDispose);
		geometries[geometry.id] = true;
		info.memory.geometries++;
		return geometry;
	}

	function update(geometry) {
		const geometryAttributes = geometry.attributes; // Updating index buffer in VAO now. See WebGLBindingStates.

		for (const name in geometryAttributes) {
			attributes.update(geometryAttributes[name], gl.ARRAY_BUFFER);
		} // morph targets


		const morphAttributes = geometry.morphAttributes;

		for (const name in morphAttributes) {
			const array = morphAttributes[name];

			for (let i = 0, l = array.length; i < l; i++) {
				attributes.update(array[i], gl.ARRAY_BUFFER);
			}
		}
	}

	function updateWireframeAttribute(geometry) {
		const indices = [];
		const geometryIndex = geometry.index;
		const geometryPosition = geometry.attributes.position;
		let version = 0;

		if (geometryIndex !== null) {
			const array = geometryIndex.array;
			version = geometryIndex.version;

			for (let i = 0, l = array.length; i < l; i += 3) {
				const a = array[i + 0];
				const b = array[i + 1];
				const c = array[i + 2];
				indices.push(a, b, b, c, c, a);
			}
		} else {
			const array = geometryPosition.array;
			version = geometryPosition.version;

			for (let i = 0, l = array.length / 3 - 1; i < l; i += 3) {
				const a = i + 0;
				const b = i + 1;
				const c = i + 2;
				indices.push(a, b, b, c, c, a);
			}
		}

		const attribute = new (arrayNeedsUint32(indices) ? Uint32BufferAttribute : Uint16BufferAttribute)(indices, 1);
		attribute.version = version; // Updating index buffer in VAO now. See WebGLBindingStates
		//

		const previousAttribute = wireframeAttributes.get(geometry);
		if (previousAttribute) attributes.remove(previousAttribute); //

		wireframeAttributes.set(geometry, attribute);
	}

	function getWireframeAttribute(geometry) {
		const currentAttribute = wireframeAttributes.get(geometry);

		if (currentAttribute) {
			const geometryIndex = geometry.index;

			if (geometryIndex !== null) {
				// if the attribute is obsolete, create a new one
				if (currentAttribute.version < geometryIndex.version) {
					updateWireframeAttribute(geometry);
				}
			}
		} else {
			updateWireframeAttribute(geometry);
		}

		return wireframeAttributes.get(geometry);
	}

	return {
		get: get,
		update: update,
		getWireframeAttribute: getWireframeAttribute
	};
}

function WebGLIndexedBufferRenderer(gl, extensions, info, capabilities) {
	const isWebGL2 = capabilities.isWebGL2;
	let mode;

	function setMode(value) {
		mode = value;
	}

	let type, bytesPerElement;

	function setIndex(value) {
		type = value.type;
		bytesPerElement = value.bytesPerElement;
	}

	function render(start, count) {
		gl.drawElements(mode, count, type, start * bytesPerElement);
		info.update(count, mode, 1);
	}

	function renderInstances(start, count, primcount) {
		if (primcount === 0) return;
		let extension, methodName;

		if (isWebGL2) {
			extension = gl;
			methodName = 'drawElementsInstanced';
		} else {
			extension = extensions.get('ANGLE_instanced_arrays');
			methodName = 'drawElementsInstancedANGLE';

			if (extension === null) {
				console.error('THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.');
				return;
			}
		}

		extension[methodName](mode, count, type, start * bytesPerElement, primcount);
		info.update(count, mode, primcount);
	} //


	this.setMode = setMode;
	this.setIndex = setIndex;
	this.render = render;
	this.renderInstances = renderInstances;
}

function WebGLInfo(gl) {
	const memory = {
		geometries: 0,
		textures: 0
	};
	const render = {
		frame: 0,
		calls: 0,
		triangles: 0,
		points: 0,
		lines: 0
	};

	function update(count, mode, instanceCount) {
		render.calls++;

		switch (mode) {
			case gl.TRIANGLES:
				render.triangles += instanceCount * (count / 3);
				break;

			case gl.LINES:
				render.lines += instanceCount * (count / 2);
				break;

			case gl.LINE_STRIP:
				render.lines += instanceCount * (count - 1);
				break;

			case gl.LINE_LOOP:
				render.lines += instanceCount * count;
				break;

			case gl.POINTS:
				render.points += instanceCount * count;
				break;

			default:
				console.error('THREE.WebGLInfo: Unknown draw mode:', mode);
				break;
		}
	}

	function reset() {
		render.frame++;
		render.calls = 0;
		render.triangles = 0;
		render.points = 0;
		render.lines = 0;
	}

	return {
		memory: memory,
		render: render,
		programs: null,
		autoReset: true,
		reset: reset,
		update: update
	};
}

class DataTexture2DArray extends Texture {
	constructor(data = null, width = 1, height = 1, depth = 1) {
		super(null);
		this.image = {
			data,
			width,
			height,
			depth
		};
		this.magFilter = NearestFilter;
		this.minFilter = NearestFilter;
		this.wrapR = ClampToEdgeWrapping;
		this.generateMipmaps = false;
		this.flipY = false;
		this.unpackAlignment = 1;
	}

}

DataTexture2DArray.prototype.isDataTexture2DArray = true;

function numericalSort(a, b) {
	return a[0] - b[0];
}

function absNumericalSort(a, b) {
	return Math.abs(b[1]) - Math.abs(a[1]);
}

function denormalize(morph, attribute) {
	let denominator = 1;
	const array = attribute.isInterleavedBufferAttribute ? attribute.data.array : attribute.array;
	if (array instanceof Int8Array) denominator = 127;else if (array instanceof Int16Array) denominator = 32767;else if (array instanceof Int32Array) denominator = 2147483647;else console.error('THREE.WebGLMorphtargets: Unsupported morph attribute data type: ', array);
	morph.divideScalar(denominator);
}

function WebGLMorphtargets(gl, capabilities, textures) {
	const influencesList = {};
	const morphInfluences = new Float32Array(8);
	const morphTextures = new WeakMap();
	const morph = new Vector3();
	const workInfluences = [];

	for (let i = 0; i < 8; i++) {
		workInfluences[i] = [i, 0];
	}

	function update(object, geometry, material, program) {
		const objectInfluences = object.morphTargetInfluences;

		if (capabilities.isWebGL2 === true) {
			// instead of using attributes, the WebGL 2 code path encodes morph targets
			// into an array of data textures. Each layer represents a single morph target.
			const numberOfMorphTargets = geometry.morphAttributes.position.length;
			let entry = morphTextures.get(geometry);

			if (entry === undefined || entry.count !== numberOfMorphTargets) {
				if (entry !== undefined) entry.texture.dispose();
				const hasMorphNormals = geometry.morphAttributes.normal !== undefined;
				const morphTargets = geometry.morphAttributes.position;
				const morphNormals = geometry.morphAttributes.normal || [];
				const numberOfVertices = geometry.attributes.position.count;
				const numberOfVertexData = hasMorphNormals === true ? 2 : 1; // (v,n) vs. (v)

				let width = numberOfVertices * numberOfVertexData;
				let height = 1;

				if (width > capabilities.maxTextureSize) {
					height = Math.ceil(width / capabilities.maxTextureSize);
					width = capabilities.maxTextureSize;
				}

				const buffer = new Float32Array(width * height * 4 * numberOfMorphTargets);
				const texture = new DataTexture2DArray(buffer, width, height, numberOfMorphTargets);
				texture.format = RGBAFormat; // using RGBA since RGB might be emulated (and is thus slower)

				texture.type = FloatType;
				texture.needsUpdate = true; // fill buffer

				const vertexDataStride = numberOfVertexData * 4;

				for (let i = 0; i < numberOfMorphTargets; i++) {
					const morphTarget = morphTargets[i];
					const morphNormal = morphNormals[i];
					const offset = width * height * 4 * i;

					for (let j = 0; j < morphTarget.count; j++) {
						morph.fromBufferAttribute(morphTarget, j);
						if (morphTarget.normalized === true) denormalize(morph, morphTarget);
						const stride = j * vertexDataStride;
						buffer[offset + stride + 0] = morph.x;
						buffer[offset + stride + 1] = morph.y;
						buffer[offset + stride + 2] = morph.z;
						buffer[offset + stride + 3] = 0;

						if (hasMorphNormals === true) {
							morph.fromBufferAttribute(morphNormal, j);
							if (morphNormal.normalized === true) denormalize(morph, morphNormal);
							buffer[offset + stride + 4] = morph.x;
							buffer[offset + stride + 5] = morph.y;
							buffer[offset + stride + 6] = morph.z;
							buffer[offset + stride + 7] = 0;
						}
					}
				}

				entry = {
					count: numberOfMorphTargets,
					texture: texture,
					size: new Vector2(width, height)
				};
				morphTextures.set(geometry, entry);

				function disposeTexture() {
					texture.dispose();
					morphTextures.delete(geometry);
					geometry.removeEventListener('dispose', disposeTexture);
				}

				geometry.addEventListener('dispose', disposeTexture);
			} //


			let morphInfluencesSum = 0;

			for (let i = 0; i < objectInfluences.length; i++) {
				morphInfluencesSum += objectInfluences[i];
			}

			const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;
			program.getUniforms().setValue(gl, 'morphTargetBaseInfluence', morphBaseInfluence);
			program.getUniforms().setValue(gl, 'morphTargetInfluences', objectInfluences);
			program.getUniforms().setValue(gl, 'morphTargetsTexture', entry.texture, textures);
			program.getUniforms().setValue(gl, 'morphTargetsTextureSize', entry.size);
		} else {
			// When object doesn't have morph target influences defined, we treat it as a 0-length array
			// This is important to make sure we set up morphTargetBaseInfluence / morphTargetInfluences
			const length = objectInfluences === undefined ? 0 : objectInfluences.length;
			let influences = influencesList[geometry.id];

			if (influences === undefined || influences.length !== length) {
				// initialise list
				influences = [];

				for (let i = 0; i < length; i++) {
					influences[i] = [i, 0];
				}

				influencesList[geometry.id] = influences;
			} // Collect influences


			for (let i = 0; i < length; i++) {
				const influence = influences[i];
				influence[0] = i;
				influence[1] = objectInfluences[i];
			}

			influences.sort(absNumericalSort);

			for (let i = 0; i < 8; i++) {
				if (i < length && influences[i][1]) {
					workInfluences[i][0] = influences[i][0];
					workInfluences[i][1] = influences[i][1];
				} else {
					workInfluences[i][0] = Number.MAX_SAFE_INTEGER;
					workInfluences[i][1] = 0;
				}
			}

			workInfluences.sort(numericalSort);
			const morphTargets = geometry.morphAttributes.position;
			const morphNormals = geometry.morphAttributes.normal;
			let morphInfluencesSum = 0;

			for (let i = 0; i < 8; i++) {
				const influence = workInfluences[i];
				const index = influence[0];
				const value = influence[1];

				if (index !== Number.MAX_SAFE_INTEGER && value) {
					if (morphTargets && geometry.getAttribute('morphTarget' + i) !== morphTargets[index]) {
						geometry.setAttribute('morphTarget' + i, morphTargets[index]);
					}

					if (morphNormals && geometry.getAttribute('morphNormal' + i) !== morphNormals[index]) {
						geometry.setAttribute('morphNormal' + i, morphNormals[index]);
					}

					morphInfluences[i] = value;
					morphInfluencesSum += value;
				} else {
					if (morphTargets && geometry.hasAttribute('morphTarget' + i) === true) {
						geometry.deleteAttribute('morphTarget' + i);
					}

					if (morphNormals && geometry.hasAttribute('morphNormal' + i) === true) {
						geometry.deleteAttribute('morphNormal' + i);
					}

					morphInfluences[i] = 0;
				}
			} // GLSL shader uses formula baseinfluence * base + sum(target * influence)
			// This allows us to switch between absolute morphs and relative morphs without changing shader code
			// When baseinfluence = 1 - sum(influence), the above is equivalent to sum((target - base) * influence)


			const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;
			program.getUniforms().setValue(gl, 'morphTargetBaseInfluence', morphBaseInfluence);
			program.getUniforms().setValue(gl, 'morphTargetInfluences', morphInfluences);
		}
	}

	return {
		update: update
	};
}

function WebGLObjects(gl, geometries, attributes, info) {
	let updateMap = new WeakMap();

	function update(object) {
		const frame = info.render.frame;
		const geometry = object.geometry;
		const buffergeometry = geometries.get(object, geometry); // Update once per frame

		if (updateMap.get(buffergeometry) !== frame) {
			geometries.update(buffergeometry);
			updateMap.set(buffergeometry, frame);
		}

		if (object.isInstancedMesh) {
			if (object.hasEventListener('dispose', onInstancedMeshDispose) === false) {
				object.addEventListener('dispose', onInstancedMeshDispose);
			}

			attributes.update(object.instanceMatrix, gl.ARRAY_BUFFER);

			if (object.instanceColor !== null) {
				attributes.update(object.instanceColor, gl.ARRAY_BUFFER);
			}
		}

		return buffergeometry;
	}

	function dispose() {
		updateMap = new WeakMap();
	}

	function onInstancedMeshDispose(event) {
		const instancedMesh = event.target;
		instancedMesh.removeEventListener('dispose', onInstancedMeshDispose);
		attributes.remove(instancedMesh.instanceMatrix);
		if (instancedMesh.instanceColor !== null) attributes.remove(instancedMesh.instanceColor);
	}

	return {
		update: update,
		dispose: dispose
	};
}

class DataTexture3D extends Texture {
	constructor(data = null, width = 1, height = 1, depth = 1) {
		// We're going to add .setXXX() methods for setting properties later.
		// Users can still set in DataTexture3D directly.
		//
		//	const texture = new THREE.DataTexture3D( data, width, height, depth );
		// 	texture.anisotropy = 16;
		//
		// See #14839
		super(null);
		this.image = {
			data,
			width,
			height,
			depth
		};
		this.magFilter = NearestFilter;
		this.minFilter = NearestFilter;
		this.wrapR = ClampToEdgeWrapping;
		this.generateMipmaps = false;
		this.flipY = false;
		this.unpackAlignment = 1;
	}

}

DataTexture3D.prototype.isDataTexture3D = true;

/**
 * Uniforms of a program.
 * Those form a tree structure with a special top-level container for the root,
 * which you get by calling 'new WebGLUniforms( gl, program )'.
 *
 *
 * Properties of inner nodes including the top-level container:
 *
 * .seq - array of nested uniforms
 * .map - nested uniforms by name
 *
 *
 * Methods of all nodes except the top-level container:
 *
 * .setValue( gl, value, [textures] )
 *
 * 		uploads a uniform value(s)
 *		the 'textures' parameter is needed for sampler uniforms
 *
 *
 * Static methods of the top-level container (textures factorizations):
 *
 * .upload( gl, seq, values, textures )
 *
 * 		sets uniforms in 'seq' to 'values[id].value'
 *
 * .seqWithValue( seq, values ) : filteredSeq
 *
 * 		filters 'seq' entries with corresponding entry in values
 *
 *
 * Methods of the top-level container (textures factorizations):
 *
 * .setValue( gl, name, value, textures )
 *
 * 		sets uniform with	name 'name' to 'value'
 *
 * .setOptional( gl, obj, prop )
 *
 * 		like .set for an optional property of the object
 *
 */
const emptyTexture = new Texture();
const emptyTexture2dArray = new DataTexture2DArray();
const emptyTexture3d = new DataTexture3D();
const emptyCubeTexture = new CubeTexture(); // --- Utilities ---
// Array Caches (provide typed arrays for temporary by size)

const arrayCacheF32 = [];
const arrayCacheI32 = []; // Float32Array caches used for uploading Matrix uniforms

const mat4array = new Float32Array(16);
const mat3array = new Float32Array(9);
const mat2array = new Float32Array(4); // Flattening for arrays of vectors and matrices

function flatten(array, nBlocks, blockSize) {
	const firstElem = array[0];
	if (firstElem <= 0 || firstElem > 0) return array; // unoptimized: ! isNaN( firstElem )
	// see http://jacksondunstan.com/articles/983

	const n = nBlocks * blockSize;
	let r = arrayCacheF32[n];

	if (r === undefined) {
		r = new Float32Array(n);
		arrayCacheF32[n] = r;
	}

	if (nBlocks !== 0) {
		firstElem.toArray(r, 0);

		for (let i = 1, offset = 0; i !== nBlocks; ++i) {
			offset += blockSize;
			array[i].toArray(r, offset);
		}
	}

	return r;
}

function arraysEqual(a, b) {
	if (a.length !== b.length) return false;

	for (let i = 0, l = a.length; i < l; i++) {
		if (a[i] !== b[i]) return false;
	}

	return true;
}

function copyArray(a, b) {
	for (let i = 0, l = b.length; i < l; i++) {
		a[i] = b[i];
	}
} // Texture unit allocation


function allocTexUnits(textures, n) {
	let r = arrayCacheI32[n];

	if (r === undefined) {
		r = new Int32Array(n);
		arrayCacheI32[n] = r;
	}

	for (let i = 0; i !== n; ++i) {
		r[i] = textures.allocateTextureUnit();
	}

	return r;
} // --- Setters ---
// Note: Defining these methods externally, because they come in a bunch
// and this way their names minify.
// Single scalar


function setValueV1f(gl, v) {
	const cache = this.cache;
	if (cache[0] === v) return;
	gl.uniform1f(this.addr, v);
	cache[0] = v;
} // Single float vector (from flat array or THREE.VectorN)


function setValueV2f(gl, v) {
	const cache = this.cache;

	if (v.x !== undefined) {
		if (cache[0] !== v.x || cache[1] !== v.y) {
			gl.uniform2f(this.addr, v.x, v.y);
			cache[0] = v.x;
			cache[1] = v.y;
		}
	} else {
		if (arraysEqual(cache, v)) return;
		gl.uniform2fv(this.addr, v);
		copyArray(cache, v);
	}
}

function setValueV3f(gl, v) {
	const cache = this.cache;

	if (v.x !== undefined) {
		if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z) {
			gl.uniform3f(this.addr, v.x, v.y, v.z);
			cache[0] = v.x;
			cache[1] = v.y;
			cache[2] = v.z;
		}
	} else if (v.r !== undefined) {
		if (cache[0] !== v.r || cache[1] !== v.g || cache[2] !== v.b) {
			gl.uniform3f(this.addr, v.r, v.g, v.b);
			cache[0] = v.r;
			cache[1] = v.g;
			cache[2] = v.b;
		}
	} else {
		if (arraysEqual(cache, v)) return;
		gl.uniform3fv(this.addr, v);
		copyArray(cache, v);
	}
}

function setValueV4f(gl, v) {
	const cache = this.cache;

	if (v.x !== undefined) {
		if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z || cache[3] !== v.w) {
			gl.uniform4f(this.addr, v.x, v.y, v.z, v.w);
			cache[0] = v.x;
			cache[1] = v.y;
			cache[2] = v.z;
			cache[3] = v.w;
		}
	} else {
		if (arraysEqual(cache, v)) return;
		gl.uniform4fv(this.addr, v);
		copyArray(cache, v);
	}
} // Single matrix (from flat array or THREE.MatrixN)


function setValueM2(gl, v) {
	const cache = this.cache;
	const elements = v.elements;

	if (elements === undefined) {
		if (arraysEqual(cache, v)) return;
		gl.uniformMatrix2fv(this.addr, false, v);
		copyArray(cache, v);
	} else {
		if (arraysEqual(cache, elements)) return;
		mat2array.set(elements);
		gl.uniformMatrix2fv(this.addr, false, mat2array);
		copyArray(cache, elements);
	}
}

function setValueM3(gl, v) {
	const cache = this.cache;
	const elements = v.elements;

	if (elements === undefined) {
		if (arraysEqual(cache, v)) return;
		gl.uniformMatrix3fv(this.addr, false, v);
		copyArray(cache, v);
	} else {
		if (arraysEqual(cache, elements)) return;
		mat3array.set(elements);
		gl.uniformMatrix3fv(this.addr, false, mat3array);
		copyArray(cache, elements);
	}
}

function setValueM4(gl, v) {
	const cache = this.cache;
	const elements = v.elements;

	if (elements === undefined) {
		if (arraysEqual(cache, v)) return;
		gl.uniformMatrix4fv(this.addr, false, v);
		copyArray(cache, v);
	} else {
		if (arraysEqual(cache, elements)) return;
		mat4array.set(elements);
		gl.uniformMatrix4fv(this.addr, false, mat4array);
		copyArray(cache, elements);
	}
} // Single integer / boolean


function setValueV1i(gl, v) {
	const cache = this.cache;
	if (cache[0] === v) return;
	gl.uniform1i(this.addr, v);
	cache[0] = v;
} // Single integer / boolean vector (from flat array)


function setValueV2i(gl, v) {
	const cache = this.cache;
	if (arraysEqual(cache, v)) return;
	gl.uniform2iv(this.addr, v);
	copyArray(cache, v);
}

function setValueV3i(gl, v) {
	const cache = this.cache;
	if (arraysEqual(cache, v)) return;
	gl.uniform3iv(this.addr, v);
	copyArray(cache, v);
}

function setValueV4i(gl, v) {
	const cache = this.cache;
	if (arraysEqual(cache, v)) return;
	gl.uniform4iv(this.addr, v);
	copyArray(cache, v);
} // Single unsigned integer


function setValueV1ui(gl, v) {
	const cache = this.cache;
	if (cache[0] === v) return;
	gl.uniform1ui(this.addr, v);
	cache[0] = v;
} // Single unsigned integer vector (from flat array)


function setValueV2ui(gl, v) {
	const cache = this.cache;
	if (arraysEqual(cache, v)) return;
	gl.uniform2uiv(this.addr, v);
	copyArray(cache, v);
}

function setValueV3ui(gl, v) {
	const cache = this.cache;
	if (arraysEqual(cache, v)) return;
	gl.uniform3uiv(this.addr, v);
	copyArray(cache, v);
}

function setValueV4ui(gl, v) {
	const cache = this.cache;
	if (arraysEqual(cache, v)) return;
	gl.uniform4uiv(this.addr, v);
	copyArray(cache, v);
} // Single texture (2D / Cube)


function setValueT1(gl, v, textures) {
	const cache = this.cache;
	const unit = textures.allocateTextureUnit();

	if (cache[0] !== unit) {
		gl.uniform1i(this.addr, unit);
		cache[0] = unit;
	}

	textures.safeSetTexture2D(v || emptyTexture, unit);
}

function setValueT3D1(gl, v, textures) {
	const cache = this.cache;
	const unit = textures.allocateTextureUnit();

	if (cache[0] !== unit) {
		gl.uniform1i(this.addr, unit);
		cache[0] = unit;
	}

	textures.setTexture3D(v || emptyTexture3d, unit);
}

function setValueT6(gl, v, textures) {
	const cache = this.cache;
	const unit = textures.allocateTextureUnit();

	if (cache[0] !== unit) {
		gl.uniform1i(this.addr, unit);
		cache[0] = unit;
	}

	textures.safeSetTextureCube(v || emptyCubeTexture, unit);
}

function setValueT2DArray1(gl, v, textures) {
	const cache = this.cache;
	const unit = textures.allocateTextureUnit();

	if (cache[0] !== unit) {
		gl.uniform1i(this.addr, unit);
		cache[0] = unit;
	}

	textures.setTexture2DArray(v || emptyTexture2dArray, unit);
} // Helper to pick the right setter for the singular case


function getSingularSetter(type) {
	switch (type) {
		case 0x1406:
			return setValueV1f;
		// FLOAT

		case 0x8b50:
			return setValueV2f;
		// _VEC2

		case 0x8b51:
			return setValueV3f;
		// _VEC3

		case 0x8b52:
			return setValueV4f;
		// _VEC4

		case 0x8b5a:
			return setValueM2;
		// _MAT2

		case 0x8b5b:
			return setValueM3;
		// _MAT3

		case 0x8b5c:
			return setValueM4;
		// _MAT4

		case 0x1404:
		case 0x8b56:
			return setValueV1i;
		// INT, BOOL

		case 0x8b53:
		case 0x8b57:
			return setValueV2i;
		// _VEC2

		case 0x8b54:
		case 0x8b58:
			return setValueV3i;
		// _VEC3

		case 0x8b55:
		case 0x8b59:
			return setValueV4i;
		// _VEC4

		case 0x1405:
			return setValueV1ui;
		// UINT

		case 0x8dc6:
			return setValueV2ui;
		// _VEC2

		case 0x8dc7:
			return setValueV3ui;
		// _VEC3

		case 0x8dc8:
			return setValueV4ui;
		// _VEC4

		case 0x8b5e: // SAMPLER_2D

		case 0x8d66: // SAMPLER_EXTERNAL_OES

		case 0x8dca: // INT_SAMPLER_2D

		case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D

		case 0x8b62:
			// SAMPLER_2D_SHADOW
			return setValueT1;

		case 0x8b5f: // SAMPLER_3D

		case 0x8dcb: // INT_SAMPLER_3D

		case 0x8dd3:
			// UNSIGNED_INT_SAMPLER_3D
			return setValueT3D1;

		case 0x8b60: // SAMPLER_CUBE

		case 0x8dcc: // INT_SAMPLER_CUBE

		case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE

		case 0x8dc5:
			// SAMPLER_CUBE_SHADOW
			return setValueT6;

		case 0x8dc1: // SAMPLER_2D_ARRAY

		case 0x8dcf: // INT_SAMPLER_2D_ARRAY

		case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY

		case 0x8dc4:
			// SAMPLER_2D_ARRAY_SHADOW
			return setValueT2DArray1;
	}
} // Array of scalars


function setValueV1fArray(gl, v) {
	gl.uniform1fv(this.addr, v);
} // Array of vectors (from flat array or array of THREE.VectorN)


function setValueV2fArray(gl, v) {
	const data = flatten(v, this.size, 2);
	gl.uniform2fv(this.addr, data);
}

function setValueV3fArray(gl, v) {
	const data = flatten(v, this.size, 3);
	gl.uniform3fv(this.addr, data);
}

function setValueV4fArray(gl, v) {
	const data = flatten(v, this.size, 4);
	gl.uniform4fv(this.addr, data);
} // Array of matrices (from flat array or array of THREE.MatrixN)


function setValueM2Array(gl, v) {
	const data = flatten(v, this.size, 4);
	gl.uniformMatrix2fv(this.addr, false, data);
}

function setValueM3Array(gl, v) {
	const data = flatten(v, this.size, 9);
	gl.uniformMatrix3fv(this.addr, false, data);
}

function setValueM4Array(gl, v) {
	const data = flatten(v, this.size, 16);
	gl.uniformMatrix4fv(this.addr, false, data);
} // Array of integer / boolean


function setValueV1iArray(gl, v) {
	gl.uniform1iv(this.addr, v);
} // Array of integer / boolean vectors (from flat array)


function setValueV2iArray(gl, v) {
	gl.uniform2iv(this.addr, v);
}

function setValueV3iArray(gl, v) {
	gl.uniform3iv(this.addr, v);
}

function setValueV4iArray(gl, v) {
	gl.uniform4iv(this.addr, v);
} // Array of unsigned integer


function setValueV1uiArray(gl, v) {
	gl.uniform1uiv(this.addr, v);
} // Array of unsigned integer vectors (from flat array)


function setValueV2uiArray(gl, v) {
	gl.uniform2uiv(this.addr, v);
}

function setValueV3uiArray(gl, v) {
	gl.uniform3uiv(this.addr, v);
}

function setValueV4uiArray(gl, v) {
	gl.uniform4uiv(this.addr, v);
} // Array of textures (2D / 3D / Cube / 2DArray)


function setValueT1Array(gl, v, textures) {
	const n = v.length;
	const units = allocTexUnits(textures, n);
	gl.uniform1iv(this.addr, units);

	for (let i = 0; i !== n; ++i) {
		textures.safeSetTexture2D(v[i] || emptyTexture, units[i]);
	}
}

function setValueT3DArray(gl, v, textures) {
	const n = v.length;
	const units = allocTexUnits(textures, n);
	gl.uniform1iv(this.addr, units);

	for (let i = 0; i !== n; ++i) {
		textures.setTexture3D(v[i] || emptyTexture3d, units[i]);
	}
}

function setValueT6Array(gl, v, textures) {
	const n = v.length;
	const units = allocTexUnits(textures, n);
	gl.uniform1iv(this.addr, units);

	for (let i = 0; i !== n; ++i) {
		textures.safeSetTextureCube(v[i] || emptyCubeTexture, units[i]);
	}
}

function setValueT2DArrayArray(gl, v, textures) {
	const n = v.length;
	const units = allocTexUnits(textures, n);
	gl.uniform1iv(this.addr, units);

	for (let i = 0; i !== n; ++i) {
		textures.setTexture2DArray(v[i] || emptyTexture2dArray, units[i]);
	}
} // Helper to pick the right setter for a pure (bottom-level) array


function getPureArraySetter(type) {
	switch (type) {
		case 0x1406:
			return setValueV1fArray;
		// FLOAT

		case 0x8b50:
			return setValueV2fArray;
		// _VEC2

		case 0x8b51:
			return setValueV3fArray;
		// _VEC3

		case 0x8b52:
			return setValueV4fArray;
		// _VEC4

		case 0x8b5a:
			return setValueM2Array;
		// _MAT2

		case 0x8b5b:
			return setValueM3Array;
		// _MAT3

		case 0x8b5c:
			return setValueM4Array;
		// _MAT4

		case 0x1404:
		case 0x8b56:
			return setValueV1iArray;
		// INT, BOOL

		case 0x8b53:
		case 0x8b57:
			return setValueV2iArray;
		// _VEC2

		case 0x8b54:
		case 0x8b58:
			return setValueV3iArray;
		// _VEC3

		case 0x8b55:
		case 0x8b59:
			return setValueV4iArray;
		// _VEC4

		case 0x1405:
			return setValueV1uiArray;
		// UINT

		case 0x8dc6:
			return setValueV2uiArray;
		// _VEC2

		case 0x8dc7:
			return setValueV3uiArray;
		// _VEC3

		case 0x8dc8:
			return setValueV4uiArray;
		// _VEC4

		case 0x8b5e: // SAMPLER_2D

		case 0x8d66: // SAMPLER_EXTERNAL_OES

		case 0x8dca: // INT_SAMPLER_2D

		case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D

		case 0x8b62:
			// SAMPLER_2D_SHADOW
			return setValueT1Array;

		case 0x8b5f: // SAMPLER_3D

		case 0x8dcb: // INT_SAMPLER_3D

		case 0x8dd3:
			// UNSIGNED_INT_SAMPLER_3D
			return setValueT3DArray;

		case 0x8b60: // SAMPLER_CUBE

		case 0x8dcc: // INT_SAMPLER_CUBE

		case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE

		case 0x8dc5:
			// SAMPLER_CUBE_SHADOW
			return setValueT6Array;

		case 0x8dc1: // SAMPLER_2D_ARRAY

		case 0x8dcf: // INT_SAMPLER_2D_ARRAY

		case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY

		case 0x8dc4:
			// SAMPLER_2D_ARRAY_SHADOW
			return setValueT2DArrayArray;
	}
} // --- Uniform Classes ---


function SingleUniform(id, activeInfo, addr) {
	this.id = id;
	this.addr = addr;
	this.cache = [];
	this.setValue = getSingularSetter(activeInfo.type); // this.path = activeInfo.name; // DEBUG
}

function PureArrayUniform(id, activeInfo, addr) {
	this.id = id;
	this.addr = addr;
	this.cache = [];
	this.size = activeInfo.size;
	this.setValue = getPureArraySetter(activeInfo.type); // this.path = activeInfo.name; // DEBUG
}

PureArrayUniform.prototype.updateCache = function (data) {
	const cache = this.cache;

	if (data instanceof Float32Array && cache.length !== data.length) {
		this.cache = new Float32Array(data.length);
	}

	copyArray(cache, data);
};

function StructuredUniform(id) {
	this.id = id;
	this.seq = [];
	this.map = {};
}

StructuredUniform.prototype.setValue = function (gl, value, textures) {
	const seq = this.seq;

	for (let i = 0, n = seq.length; i !== n; ++i) {
		const u = seq[i];
		u.setValue(gl, value[u.id], textures);
	}
}; // --- Top-level ---
// Parser - builds up the property tree from the path strings


const RePathPart = /(\w+)(\])?(\[|\.)?/g; // extracts
// 	- the identifier (member name or array index)
//	- followed by an optional right bracket (found when array index)
//	- followed by an optional left bracket or dot (type of subscript)
//
// Note: These portions can be read in a non-overlapping fashion and
// allow straightforward parsing of the hierarchy that WebGL encodes
// in the uniform names.

function addUniform(container, uniformObject) {
	container.seq.push(uniformObject);
	container.map[uniformObject.id] = uniformObject;
}

function parseUniform(activeInfo, addr, container) {
	const path = activeInfo.name,
				pathLength = path.length; // reset RegExp object, because of the early exit of a previous run

	RePathPart.lastIndex = 0;

	while (true) {
		const match = RePathPart.exec(path),
					matchEnd = RePathPart.lastIndex;
		let id = match[1];
		const idIsIndex = match[2] === ']',
					subscript = match[3];
		if (idIsIndex) id = id | 0; // convert to integer

		if (subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength) {
			// bare name or "pure" bottom-level array "[0]" suffix
			addUniform(container, subscript === undefined ? new SingleUniform(id, activeInfo, addr) : new PureArrayUniform(id, activeInfo, addr));
			break;
		} else {
			// step into inner node / create it in case it doesn't exist
			const map = container.map;
			let next = map[id];

			if (next === undefined) {
				next = new StructuredUniform(id);
				addUniform(container, next);
			}

			container = next;
		}
	}
} // Root Container


function WebGLUniforms(gl, program) {
	this.seq = [];
	this.map = {};
	const n = gl.getProgramParameter(program, gl.ACTIVE_UNIFORMS);

	for (let i = 0; i < n; ++i) {
		const info = gl.getActiveUniform(program, i),
					addr = gl.getUniformLocation(program, info.name);
		parseUniform(info, addr, this);
	}
}

WebGLUniforms.prototype.setValue = function (gl, name, value, textures) {
	const u = this.map[name];
	if (u !== undefined) u.setValue(gl, value, textures);
};

WebGLUniforms.prototype.setOptional = function (gl, object, name) {
	const v = object[name];
	if (v !== undefined) this.setValue(gl, name, v);
}; // Static interface


WebGLUniforms.upload = function (gl, seq, values, textures) {
	for (let i = 0, n = seq.length; i !== n; ++i) {
		const u = seq[i],
					v = values[u.id];

		if (v.needsUpdate !== false) {
			// note: always updating when .needsUpdate is undefined
			u.setValue(gl, v.value, textures);
		}
	}
};

WebGLUniforms.seqWithValue = function (seq, values) {
	const r = [];

	for (let i = 0, n = seq.length; i !== n; ++i) {
		const u = seq[i];
		if (u.id in values) r.push(u);
	}

	return r;
};

function WebGLShader(gl, type, string) {
	const shader = gl.createShader(type);
	gl.shaderSource(shader, string);
	gl.compileShader(shader);
	return shader;
}

let programIdCount = 0;

function addLineNumbers(string) {
	const lines = string.split('\n');

	for (let i = 0; i < lines.length; i++) {
		lines[i] = i + 1 + ': ' + lines[i];
	}

	return lines.join('\n');
}

function getEncodingComponents(encoding) {
	switch (encoding) {
		case LinearEncoding:
			return ['Linear', '( value )'];

		case sRGBEncoding:
			return ['sRGB', '( value )'];

		default:
			console.warn('THREE.WebGLProgram: Unsupported encoding:', encoding);
			return ['Linear', '( value )'];
	}
}

function getShaderErrors(gl, shader, type) {
	const status = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
	const errors = gl.getShaderInfoLog(shader).trim();
	if (status && errors === '') return ''; // --enable-privileged-webgl-extension
	// console.log( '**' + type + '**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );

	return type.toUpperCase() + '\n\n' + errors + '\n\n' + addLineNumbers(gl.getShaderSource(shader));
}

function getTexelEncodingFunction(functionName, encoding) {
	const components = getEncodingComponents(encoding);
	return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[0] + components[1] + '; }';
}

function getToneMappingFunction(functionName, toneMapping) {
	let toneMappingName;

	switch (toneMapping) {
		case LinearToneMapping:
			toneMappingName = 'Linear';
			break;

		case ReinhardToneMapping:
			toneMappingName = 'Reinhard';
			break;

		case CineonToneMapping:
			toneMappingName = 'OptimizedCineon';
			break;

		case ACESFilmicToneMapping:
			toneMappingName = 'ACESFilmic';
			break;

		case CustomToneMapping:
			toneMappingName = 'Custom';
			break;

		default:
			console.warn('THREE.WebGLProgram: Unsupported toneMapping:', toneMapping);
			toneMappingName = 'Linear';
	}

	return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';
}

function generateExtensions(parameters) {
	const chunks = [parameters.extensionDerivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.tangentSpaceNormalMap || parameters.clearcoatNormalMap || parameters.flatShading || parameters.shaderID === 'physical' ? '#extension GL_OES_standard_derivatives : enable' : '', (parameters.extensionFragDepth || parameters.logarithmicDepthBuffer) && parameters.rendererExtensionFragDepth ? '#extension GL_EXT_frag_depth : enable' : '', parameters.extensionDrawBuffers && parameters.rendererExtensionDrawBuffers ? '#extension GL_EXT_draw_buffers : require' : '', (parameters.extensionShaderTextureLOD || parameters.envMap || parameters.transmission) && parameters.rendererExtensionShaderTextureLod ? '#extension GL_EXT_shader_texture_lod : enable' : ''];
	return chunks.filter(filterEmptyLine).join('\n');
}

function generateDefines(defines) {
	const chunks = [];

	for (const name in defines) {
		const value = defines[name];
		if (value === false) continue;
		chunks.push('#define ' + name + ' ' + value);
	}

	return chunks.join('\n');
}

function fetchAttributeLocations(gl, program) {
	const attributes = {};
	const n = gl.getProgramParameter(program, gl.ACTIVE_ATTRIBUTES);

	for (let i = 0; i < n; i++) {
		const info = gl.getActiveAttrib(program, i);
		const name = info.name;
		let locationSize = 1;
		if (info.type === gl.FLOAT_MAT2) locationSize = 2;
		if (info.type === gl.FLOAT_MAT3) locationSize = 3;
		if (info.type === gl.FLOAT_MAT4) locationSize = 4; // console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );

		attributes[name] = {
			type: info.type,
			location: gl.getAttribLocation(program, name),
			locationSize: locationSize
		};
	}

	return attributes;
}

function filterEmptyLine(string) {
	return string !== '';
}

function replaceLightNums(string, parameters) {
	return string.replace(/NUM_DIR_LIGHTS/g, parameters.numDirLights).replace(/NUM_SPOT_LIGHTS/g, parameters.numSpotLights).replace(/NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights).replace(/NUM_POINT_LIGHTS/g, parameters.numPointLights).replace(/NUM_HEMI_LIGHTS/g, parameters.numHemiLights).replace(/NUM_DIR_LIGHT_SHADOWS/g, parameters.numDirLightShadows).replace(/NUM_SPOT_LIGHT_SHADOWS/g, parameters.numSpotLightShadows).replace(/NUM_POINT_LIGHT_SHADOWS/g, parameters.numPointLightShadows);
}

function replaceClippingPlaneNums(string, parameters) {
	return string.replace(/NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes).replace(/UNION_CLIPPING_PLANES/g, parameters.numClippingPlanes - parameters.numClipIntersection);
} // Resolve Includes


const includePattern = /^[ \t]*#include +<([\w\d./]+)>/gm;

function resolveIncludes(string) {
	return string.replace(includePattern, includeReplacer);
}

function includeReplacer(match, include) {
	const string = ShaderChunk[include];

	if (string === undefined) {
		throw new Error('Can not resolve #include <' + include + '>');
	}

	return resolveIncludes(string);
} // Unroll Loops


const deprecatedUnrollLoopPattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;
const unrollLoopPattern = /#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g;

function unrollLoops(string) {
	return string.replace(unrollLoopPattern, loopReplacer).replace(deprecatedUnrollLoopPattern, deprecatedLoopReplacer);
}

function deprecatedLoopReplacer(match, start, end, snippet) {
	console.warn('WebGLProgram: #pragma unroll_loop shader syntax is deprecated. Please use #pragma unroll_loop_start syntax instead.');
	return loopReplacer(match, start, end, snippet);
}

function loopReplacer(match, start, end, snippet) {
	let string = '';

	for (let i = parseInt(start); i < parseInt(end); i++) {
		string += snippet.replace(/\[\s*i\s*\]/g, '[ ' + i + ' ]').replace(/UNROLLED_LOOP_INDEX/g, i);
	}

	return string;
} //


function generatePrecision(parameters) {
	let precisionstring = 'precision ' + parameters.precision + ' float;\nprecision ' + parameters.precision + ' int;';

	if (parameters.precision === 'highp') {
		precisionstring += '\n#define HIGH_PRECISION';
	} else if (parameters.precision === 'mediump') {
		precisionstring += '\n#define MEDIUM_PRECISION';
	} else if (parameters.precision === 'lowp') {
		precisionstring += '\n#define LOW_PRECISION';
	}

	return precisionstring;
}

function generateShadowMapTypeDefine(parameters) {
	let shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';

	if (parameters.shadowMapType === PCFShadowMap) {
		shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';
	} else if (parameters.shadowMapType === PCFSoftShadowMap) {
		shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';
	} else if (parameters.shadowMapType === VSMShadowMap) {
		shadowMapTypeDefine = 'SHADOWMAP_TYPE_VSM';
	}

	return shadowMapTypeDefine;
}

function generateEnvMapTypeDefine(parameters) {
	let envMapTypeDefine = 'ENVMAP_TYPE_CUBE';

	if (parameters.envMap) {
		switch (parameters.envMapMode) {
			case CubeReflectionMapping:
			case CubeRefractionMapping:
				envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
				break;

			case CubeUVReflectionMapping:
			case CubeUVRefractionMapping:
				envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
				break;
		}
	}

	return envMapTypeDefine;
}

function generateEnvMapModeDefine(parameters) {
	let envMapModeDefine = 'ENVMAP_MODE_REFLECTION';

	if (parameters.envMap) {
		switch (parameters.envMapMode) {
			case CubeRefractionMapping:
			case CubeUVRefractionMapping:
				envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
				break;
		}
	}

	return envMapModeDefine;
}

function generateEnvMapBlendingDefine(parameters) {
	let envMapBlendingDefine = 'ENVMAP_BLENDING_NONE';

	if (parameters.envMap) {
		switch (parameters.combine) {
			case MultiplyOperation:
				envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
				break;

			case MixOperation:
				envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
				break;

			case AddOperation:
				envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
				break;
		}
	}

	return envMapBlendingDefine;
}

function WebGLProgram(renderer, cacheKey, parameters, bindingStates) {
	// TODO Send this event to Three.js DevTools
	// console.log( 'WebGLProgram', cacheKey );
	const gl = renderer.getContext();
	const defines = parameters.defines;
	let vertexShader = parameters.vertexShader;
	let fragmentShader = parameters.fragmentShader;
	const shadowMapTypeDefine = generateShadowMapTypeDefine(parameters);
	const envMapTypeDefine = generateEnvMapTypeDefine(parameters);
	const envMapModeDefine = generateEnvMapModeDefine(parameters);
	const envMapBlendingDefine = generateEnvMapBlendingDefine(parameters);
	const customExtensions = parameters.isWebGL2 ? '' : generateExtensions(parameters);
	const customDefines = generateDefines(defines);
	const program = gl.createProgram();
	let prefixVertex, prefixFragment;
	let versionString = parameters.glslVersion ? '#version ' + parameters.glslVersion + '\n' : '';

	if (parameters.isRawShaderMaterial) {
		prefixVertex = [customDefines].filter(filterEmptyLine).join('\n');

		if (prefixVertex.length > 0) {
			prefixVertex += '\n';
		}

		prefixFragment = [customExtensions, customDefines].filter(filterEmptyLine).join('\n');

		if (prefixFragment.length > 0) {
			prefixFragment += '\n';
		}
	} else {
		prefixVertex = [generatePrecision(parameters), '#define SHADER_NAME ' + parameters.shaderName, customDefines, parameters.instancing ? '#define USE_INSTANCING' : '', parameters.instancingColor ? '#define USE_INSTANCING_COLOR' : '', parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '', '#define MAX_BONES ' + parameters.maxBones, parameters.useFog && parameters.fog ? '#define USE_FOG' : '', parameters.useFog && parameters.fogExp2 ? '#define FOG_EXP2' : '', parameters.map ? '#define USE_MAP' : '', parameters.envMap ? '#define USE_ENVMAP' : '', parameters.envMap ? '#define ' + envMapModeDefine : '', parameters.lightMap ? '#define USE_LIGHTMAP' : '', parameters.aoMap ? '#define USE_AOMAP' : '', parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', parameters.bumpMap ? '#define USE_BUMPMAP' : '', parameters.normalMap ? '#define USE_NORMALMAP' : '', parameters.normalMap && parameters.objectSpaceNormalMap ? '#define OBJECTSPACE_NORMALMAP' : '', parameters.normalMap && parameters.tangentSpaceNormalMap ? '#define TANGENTSPACE_NORMALMAP' : '', parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '', parameters.specularMap ? '#define USE_SPECULARMAP' : '', parameters.specularIntensityMap ? '#define USE_SPECULARINTENSITYMAP' : '', parameters.specularColorMap ? '#define USE_SPECULARCOLORMAP' : '', parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', parameters.alphaMap ? '#define USE_ALPHAMAP' : '', parameters.transmission ? '#define USE_TRANSMISSION' : '', parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', parameters.thicknessMap ? '#define USE_THICKNESSMAP' : '', parameters.sheenColorMap ? '#define USE_SHEENCOLORMAP' : '', parameters.sheenRoughnessMap ? '#define USE_SHEENROUGHNESSMAP' : '', parameters.vertexTangents ? '#define USE_TANGENT' : '', parameters.vertexColors ? '#define USE_COLOR' : '', parameters.vertexAlphas ? '#define USE_COLOR_ALPHA' : '', parameters.vertexUvs ? '#define USE_UV' : '', parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', parameters.flatShading ? '#define FLAT_SHADED' : '', parameters.skinning ? '#define USE_SKINNING' : '', parameters.useVertexTexture ? '#define BONE_TEXTURE' : '', parameters.morphTargets ? '#define USE_MORPHTARGETS' : '', parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '', parameters.morphTargets && parameters.isWebGL2 ? '#define MORPHTARGETS_TEXTURE' : '', parameters.morphTargets && parameters.isWebGL2 ? '#define MORPHTARGETS_COUNT ' + parameters.morphTargetsCount : '', parameters.doubleSided ? '#define DOUBLE_SIDED' : '', parameters.flipSided ? '#define FLIP_SIDED' : '', parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '', parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ? '#define USE_LOGDEPTHBUF_EXT' : '', 'uniform mat4 modelMatrix;', 'uniform mat4 modelViewMatrix;', 'uniform mat4 projectionMatrix;', 'uniform mat4 viewMatrix;', 'uniform mat3 normalMatrix;', 'uniform vec3 cameraPosition;', 'uniform bool isOrthographic;', '#ifdef USE_INSTANCING', '	attribute mat4 instanceMatrix;', '#endif', '#ifdef USE_INSTANCING_COLOR', '	attribute vec3 instanceColor;', '#endif', 'attribute vec3 position;', 'attribute vec3 normal;', 'attribute vec2 uv;', '#ifdef USE_TANGENT', '	attribute vec4 tangent;', '#endif', '#if defined( USE_COLOR_ALPHA )', '	attribute vec4 color;', '#elif defined( USE_COLOR )', '	attribute vec3 color;', '#endif', '#if ( defined( USE_MORPHTARGETS ) && ! defined( MORPHTARGETS_TEXTURE ) )', '	attribute vec3 morphTarget0;', '	attribute vec3 morphTarget1;', '	attribute vec3 morphTarget2;', '	attribute vec3 morphTarget3;', '	#ifdef USE_MORPHNORMALS', '		attribute vec3 morphNormal0;', '		attribute vec3 morphNormal1;', '		attribute vec3 morphNormal2;', '		attribute vec3 morphNormal3;', '	#else', '		attribute vec3 morphTarget4;', '		attribute vec3 morphTarget5;', '		attribute vec3 morphTarget6;', '		attribute vec3 morphTarget7;', '	#endif', '#endif', '#ifdef USE_SKINNING', '	attribute vec4 skinIndex;', '	attribute vec4 skinWeight;', '#endif', '\n'].filter(filterEmptyLine).join('\n');
		prefixFragment = [customExtensions, generatePrecision(parameters), '#define SHADER_NAME ' + parameters.shaderName, customDefines, parameters.useFog && parameters.fog ? '#define USE_FOG' : '', parameters.useFog && parameters.fogExp2 ? '#define FOG_EXP2' : '', parameters.map ? '#define USE_MAP' : '', parameters.matcap ? '#define USE_MATCAP' : '', parameters.envMap ? '#define USE_ENVMAP' : '', parameters.envMap ? '#define ' + envMapTypeDefine : '', parameters.envMap ? '#define ' + envMapModeDefine : '', parameters.envMap ? '#define ' + envMapBlendingDefine : '', parameters.lightMap ? '#define USE_LIGHTMAP' : '', parameters.aoMap ? '#define USE_AOMAP' : '', parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', parameters.bumpMap ? '#define USE_BUMPMAP' : '', parameters.normalMap ? '#define USE_NORMALMAP' : '', parameters.normalMap && parameters.objectSpaceNormalMap ? '#define OBJECTSPACE_NORMALMAP' : '', parameters.normalMap && parameters.tangentSpaceNormalMap ? '#define TANGENTSPACE_NORMALMAP' : '', parameters.clearcoat ? '#define USE_CLEARCOAT' : '', parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', parameters.specularMap ? '#define USE_SPECULARMAP' : '', parameters.specularIntensityMap ? '#define USE_SPECULARINTENSITYMAP' : '', parameters.specularColorMap ? '#define USE_SPECULARCOLORMAP' : '', parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', parameters.alphaMap ? '#define USE_ALPHAMAP' : '', parameters.alphaTest ? '#define USE_ALPHATEST' : '', parameters.sheen ? '#define USE_SHEEN' : '', parameters.sheenColorMap ? '#define USE_SHEENCOLORMAP' : '', parameters.sheenRoughnessMap ? '#define USE_SHEENROUGHNESSMAP' : '', parameters.transmission ? '#define USE_TRANSMISSION' : '', parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', parameters.thicknessMap ? '#define USE_THICKNESSMAP' : '', parameters.decodeVideoTexture ? '#define DECODE_VIDEO_TEXTURE' : '', parameters.vertexTangents ? '#define USE_TANGENT' : '', parameters.vertexColors || parameters.instancingColor ? '#define USE_COLOR' : '', parameters.vertexAlphas ? '#define USE_COLOR_ALPHA' : '', parameters.vertexUvs ? '#define USE_UV' : '', parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', parameters.gradientMap ? '#define USE_GRADIENTMAP' : '', parameters.flatShading ? '#define FLAT_SHADED' : '', parameters.doubleSided ? '#define DOUBLE_SIDED' : '', parameters.flipSided ? '#define FLIP_SIDED' : '', parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '', parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '', parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ? '#define USE_LOGDEPTHBUF_EXT' : '', (parameters.extensionShaderTextureLOD || parameters.envMap) && parameters.rendererExtensionShaderTextureLod ? '#define TEXTURE_LOD_EXT' : '', 'uniform mat4 viewMatrix;', 'uniform vec3 cameraPosition;', 'uniform bool isOrthographic;', parameters.toneMapping !== NoToneMapping ? '#define TONE_MAPPING' : '', parameters.toneMapping !== NoToneMapping ? ShaderChunk['tonemapping_pars_fragment'] : '', // this code is required here because it is used by the toneMapping() function defined below
		parameters.toneMapping !== NoToneMapping ? getToneMappingFunction('toneMapping', parameters.toneMapping) : '', parameters.dithering ? '#define DITHERING' : '', parameters.transparent ? '' : '#define OPAQUE', ShaderChunk['encodings_pars_fragment'], // this code is required here because it is used by the various encoding/decoding function defined below
		getTexelEncodingFunction('linearToOutputTexel', parameters.outputEncoding), parameters.depthPacking ? '#define DEPTH_PACKING ' + parameters.depthPacking : '', '\n'].filter(filterEmptyLine).join('\n');
	}

	vertexShader = resolveIncludes(vertexShader);
	vertexShader = replaceLightNums(vertexShader, parameters);
	vertexShader = replaceClippingPlaneNums(vertexShader, parameters);
	fragmentShader = resolveIncludes(fragmentShader);
	fragmentShader = replaceLightNums(fragmentShader, parameters);
	fragmentShader = replaceClippingPlaneNums(fragmentShader, parameters);
	vertexShader = unrollLoops(vertexShader);
	fragmentShader = unrollLoops(fragmentShader);

	if (parameters.isWebGL2 && parameters.isRawShaderMaterial !== true) {
		// GLSL 3.0 conversion for built-in materials and ShaderMaterial
		versionString = '#version 300 es\n';
		prefixVertex = ['precision mediump sampler2DArray;', '#define attribute in', '#define varying out', '#define texture2D texture'].join('\n') + '\n' + prefixVertex;
		prefixFragment = ['#define varying in', parameters.glslVersion === GLSL3 ? '' : 'layout(location = 0) out highp vec4 pc_fragColor;', parameters.glslVersion === GLSL3 ? '' : '#define gl_FragColor pc_fragColor', '#define gl_FragDepthEXT gl_FragDepth', '#define texture2D texture', '#define textureCube texture', '#define texture2DProj textureProj', '#define texture2DLodEXT textureLod', '#define texture2DProjLodEXT textureProjLod', '#define textureCubeLodEXT textureLod', '#define texture2DGradEXT textureGrad', '#define texture2DProjGradEXT textureProjGrad', '#define textureCubeGradEXT textureGrad'].join('\n') + '\n' + prefixFragment;
	}

	const vertexGlsl = versionString + prefixVertex + vertexShader;
	const fragmentGlsl = versionString + prefixFragment + fragmentShader; // console.log( '*VERTEX*', vertexGlsl );
	// console.log( '*FRAGMENT*', fragmentGlsl );

	const glVertexShader = WebGLShader(gl, gl.VERTEX_SHADER, vertexGlsl);
	const glFragmentShader = WebGLShader(gl, gl.FRAGMENT_SHADER, fragmentGlsl);
	gl.attachShader(program, glVertexShader);
	gl.attachShader(program, glFragmentShader); // Force a particular attribute to index 0.

	if (parameters.index0AttributeName !== undefined) {
		gl.bindAttribLocation(program, 0, parameters.index0AttributeName);
	} else if (parameters.morphTargets === true) {
		// programs with morphTargets displace position out of attribute 0
		gl.bindAttribLocation(program, 0, 'position');
	}

	gl.linkProgram(program); // check for link errors

	if (renderer.debug.checkShaderErrors) {
		const programLog = gl.getProgramInfoLog(program).trim();
		const vertexLog = gl.getShaderInfoLog(glVertexShader).trim();
		const fragmentLog = gl.getShaderInfoLog(glFragmentShader).trim();
		let runnable = true;
		let haveDiagnostics = true;

		if (gl.getProgramParameter(program, gl.LINK_STATUS) === false) {
			runnable = false;
			const vertexErrors = getShaderErrors(gl, glVertexShader, 'vertex');
			const fragmentErrors = getShaderErrors(gl, glFragmentShader, 'fragment');
			console.error('THREE.WebGLProgram: Shader Error ' + gl.getError() + ' - ' + 'VALIDATE_STATUS ' + gl.getProgramParameter(program, gl.VALIDATE_STATUS) + '\n\n' + 'Program Info Log: ' + programLog + '\n' + vertexErrors + '\n' + fragmentErrors);
		} else if (programLog !== '') {
			console.warn('THREE.WebGLProgram: Program Info Log:', programLog);
		} else if (vertexLog === '' || fragmentLog === '') {
			haveDiagnostics = false;
		}

		if (haveDiagnostics) {
			this.diagnostics = {
				runnable: runnable,
				programLog: programLog,
				vertexShader: {
					log: vertexLog,
					prefix: prefixVertex
				},
				fragmentShader: {
					log: fragmentLog,
					prefix: prefixFragment
				}
			};
		}
	} // Clean up
	// Crashes in iOS9 and iOS10. #18402
	// gl.detachShader( program, glVertexShader );
	// gl.detachShader( program, glFragmentShader );


	gl.deleteShader(glVertexShader);
	gl.deleteShader(glFragmentShader); // set up caching for uniform locations

	let cachedUniforms;

	this.getUniforms = function () {
		if (cachedUniforms === undefined) {
			cachedUniforms = new WebGLUniforms(gl, program);
		}

		return cachedUniforms;
	}; // set up caching for attribute locations


	let cachedAttributes;

	this.getAttributes = function () {
		if (cachedAttributes === undefined) {
			cachedAttributes = fetchAttributeLocations(gl, program);
		}

		return cachedAttributes;
	}; // free resource


	this.destroy = function () {
		bindingStates.releaseStatesOfProgram(this);
		gl.deleteProgram(program);
		this.program = undefined;
	}; //


	this.name = parameters.shaderName;
	this.id = programIdCount++;
	this.cacheKey = cacheKey;
	this.usedTimes = 1;
	this.program = program;
	this.vertexShader = glVertexShader;
	this.fragmentShader = glFragmentShader;
	return this;
}

let _id = 0;

class WebGLShaderCache {
	constructor() {
		this.shaderCache = new Map();
		this.materialCache = new Map();
	}

	update(material) {
		const vertexShader = material.vertexShader;
		const fragmentShader = material.fragmentShader;

		const vertexShaderStage = this._getShaderStage(vertexShader);

		const fragmentShaderStage = this._getShaderStage(fragmentShader);

		const materialShaders = this._getShaderCacheForMaterial(material);

		if (materialShaders.has(vertexShaderStage) === false) {
			materialShaders.add(vertexShaderStage);
			vertexShaderStage.usedTimes++;
		}

		if (materialShaders.has(fragmentShaderStage) === false) {
			materialShaders.add(fragmentShaderStage);
			fragmentShaderStage.usedTimes++;
		}

		return this;
	}

	remove(material) {
		const materialShaders = this.materialCache.get(material);

		for (const shaderStage of materialShaders) {
			shaderStage.usedTimes--;
			if (shaderStage.usedTimes === 0) this.shaderCache.delete(shaderStage);
		}

		this.materialCache.delete(material);
		return this;
	}

	getVertexShaderID(material) {
		return this._getShaderStage(material.vertexShader).id;
	}

	getFragmentShaderID(material) {
		return this._getShaderStage(material.fragmentShader).id;
	}

	dispose() {
		this.shaderCache.clear();
		this.materialCache.clear();
	}

	_getShaderCacheForMaterial(material) {
		const cache = this.materialCache;

		if (cache.has(material) === false) {
			cache.set(material, new Set());
		}

		return cache.get(material);
	}

	_getShaderStage(code) {
		const cache = this.shaderCache;

		if (cache.has(code) === false) {
			const stage = new WebGLShaderStage();
			cache.set(code, stage);
		}

		return cache.get(code);
	}

}

class WebGLShaderStage {
	constructor() {
		this.id = _id++;
		this.usedTimes = 0;
	}

}

function WebGLPrograms(renderer, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping) {
	const _programLayers = new Layers();

	const _customShaders = new WebGLShaderCache();

	const programs = [];
	const isWebGL2 = capabilities.isWebGL2;
	const logarithmicDepthBuffer = capabilities.logarithmicDepthBuffer;
	const floatVertexTextures = capabilities.floatVertexTextures;
	const maxVertexUniforms = capabilities.maxVertexUniforms;
	const vertexTextures = capabilities.vertexTextures;
	let precision = capabilities.precision;
	const shaderIDs = {
		MeshDepthMaterial: 'depth',
		MeshDistanceMaterial: 'distanceRGBA',
		MeshNormalMaterial: 'normal',
		MeshBasicMaterial: 'basic',
		MeshLambertMaterial: 'lambert',
		MeshPhongMaterial: 'phong',
		MeshToonMaterial: 'toon',
		MeshStandardMaterial: 'physical',
		MeshPhysicalMaterial: 'physical',
		MeshMatcapMaterial: 'matcap',
		LineBasicMaterial: 'basic',
		LineDashedMaterial: 'dashed',
		PointsMaterial: 'points',
		ShadowMaterial: 'shadow',
		SpriteMaterial: 'sprite'
	};

	function getMaxBones(object) {
		const skeleton = object.skeleton;
		const bones = skeleton.bones;

		if (floatVertexTextures) {
			return 1024;
		} else {
			// default for when object is not specified
			// ( for example when prebuilding shader to be used with multiple objects )
			//
			//	- leave some extra space for other uniforms
			//	- limit here is ANGLE's 254 max uniform vectors
			//		(up to 54 should be safe)
			const nVertexUniforms = maxVertexUniforms;
			const nVertexMatrices = Math.floor((nVertexUniforms - 20) / 4);
			const maxBones = Math.min(nVertexMatrices, bones.length);

			if (maxBones < bones.length) {
				console.warn('THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.');
				return 0;
			}

			return maxBones;
		}
	}

	function getParameters(material, lights, shadows, scene, object) {
		const fog = scene.fog;
		const environment = material.isMeshStandardMaterial ? scene.environment : null;
		const envMap = (material.isMeshStandardMaterial ? cubeuvmaps : cubemaps).get(material.envMap || environment);
		const shaderID = shaderIDs[material.type]; // heuristics to create shader parameters according to lights in the scene
		// (not to blow over maxLights budget)

		const maxBones = object.isSkinnedMesh ? getMaxBones(object) : 0;

		if (material.precision !== null) {
			precision = capabilities.getMaxPrecision(material.precision);

			if (precision !== material.precision) {
				console.warn('THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.');
			}
		}

		let vertexShader, fragmentShader;
		let customVertexShaderID, customFragmentShaderID;

		if (shaderID) {
			const shader = ShaderLib[shaderID];
			vertexShader = shader.vertexShader;
			fragmentShader = shader.fragmentShader;
		} else {
			vertexShader = material.vertexShader;
			fragmentShader = material.fragmentShader;

			_customShaders.update(material);

			customVertexShaderID = _customShaders.getVertexShaderID(material);
			customFragmentShaderID = _customShaders.getFragmentShaderID(material);
		}

		const currentRenderTarget = renderer.getRenderTarget();
		const useAlphaTest = material.alphaTest > 0;
		const useClearcoat = material.clearcoat > 0;
		const parameters = {
			isWebGL2: isWebGL2,
			shaderID: shaderID,
			shaderName: material.type,
			vertexShader: vertexShader,
			fragmentShader: fragmentShader,
			defines: material.defines,
			customVertexShaderID: customVertexShaderID,
			customFragmentShaderID: customFragmentShaderID,
			isRawShaderMaterial: material.isRawShaderMaterial === true,
			glslVersion: material.glslVersion,
			precision: precision,
			instancing: object.isInstancedMesh === true,
			instancingColor: object.isInstancedMesh === true && object.instanceColor !== null,
			supportsVertexTextures: vertexTextures,
			outputEncoding: currentRenderTarget === null ? renderer.outputEncoding : currentRenderTarget.isXRRenderTarget === true ? currentRenderTarget.texture.encoding : LinearEncoding,
			map: !!material.map,
			matcap: !!material.matcap,
			envMap: !!envMap,
			envMapMode: envMap && envMap.mapping,
			envMapCubeUV: !!envMap && (envMap.mapping === CubeUVReflectionMapping || envMap.mapping === CubeUVRefractionMapping),
			lightMap: !!material.lightMap,
			aoMap: !!material.aoMap,
			emissiveMap: !!material.emissiveMap,
			bumpMap: !!material.bumpMap,
			normalMap: !!material.normalMap,
			objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,
			tangentSpaceNormalMap: material.normalMapType === TangentSpaceNormalMap,
			decodeVideoTexture: !!material.map && material.map.isVideoTexture === true && material.map.encoding === sRGBEncoding,
			clearcoat: useClearcoat,
			clearcoatMap: useClearcoat && !!material.clearcoatMap,
			clearcoatRoughnessMap: useClearcoat && !!material.clearcoatRoughnessMap,
			clearcoatNormalMap: useClearcoat && !!material.clearcoatNormalMap,
			displacementMap: !!material.displacementMap,
			roughnessMap: !!material.roughnessMap,
			metalnessMap: !!material.metalnessMap,
			specularMap: !!material.specularMap,
			specularIntensityMap: !!material.specularIntensityMap,
			specularColorMap: !!material.specularColorMap,
			transparent: material.transparent,
			alphaMap: !!material.alphaMap,
			alphaTest: useAlphaTest,
			gradientMap: !!material.gradientMap,
			sheen: material.sheen > 0,
			sheenColorMap: !!material.sheenColorMap,
			sheenRoughnessMap: !!material.sheenRoughnessMap,
			transmission: material.transmission > 0,
			transmissionMap: !!material.transmissionMap,
			thicknessMap: !!material.thicknessMap,
			combine: material.combine,
			vertexTangents: !!material.normalMap && !!object.geometry && !!object.geometry.attributes.tangent,
			vertexColors: material.vertexColors,
			vertexAlphas: material.vertexColors === true && !!object.geometry && !!object.geometry.attributes.color && object.geometry.attributes.color.itemSize === 4,
			vertexUvs: !!material.map || !!material.bumpMap || !!material.normalMap || !!material.specularMap || !!material.alphaMap || !!material.emissiveMap || !!material.roughnessMap || !!material.metalnessMap || !!material.clearcoatMap || !!material.clearcoatRoughnessMap || !!material.clearcoatNormalMap || !!material.displacementMap || !!material.transmissionMap || !!material.thicknessMap || !!material.specularIntensityMap || !!material.specularColorMap || !!material.sheenColorMap || !!material.sheenRoughnessMap,
			uvsVertexOnly: !(!!material.map || !!material.bumpMap || !!material.normalMap || !!material.specularMap || !!material.alphaMap || !!material.emissiveMap || !!material.roughnessMap || !!material.metalnessMap || !!material.clearcoatNormalMap || material.transmission > 0 || !!material.transmissionMap || !!material.thicknessMap || !!material.specularIntensityMap || !!material.specularColorMap || material.sheen > 0 || !!material.sheenColorMap || !!material.sheenRoughnessMap) && !!material.displacementMap,
			fog: !!fog,
			useFog: material.fog,
			fogExp2: fog && fog.isFogExp2,
			flatShading: !!material.flatShading,
			sizeAttenuation: material.sizeAttenuation,
			logarithmicDepthBuffer: logarithmicDepthBuffer,
			skinning: object.isSkinnedMesh === true && maxBones > 0,
			maxBones: maxBones,
			useVertexTexture: floatVertexTextures,
			morphTargets: !!object.geometry && !!object.geometry.morphAttributes.position,
			morphNormals: !!object.geometry && !!object.geometry.morphAttributes.normal,
			morphTargetsCount: !!object.geometry && !!object.geometry.morphAttributes.position ? object.geometry.morphAttributes.position.length : 0,
			numDirLights: lights.directional.length,
			numPointLights: lights.point.length,
			numSpotLights: lights.spot.length,
			numRectAreaLights: lights.rectArea.length,
			numHemiLights: lights.hemi.length,
			numDirLightShadows: lights.directionalShadowMap.length,
			numPointLightShadows: lights.pointShadowMap.length,
			numSpotLightShadows: lights.spotShadowMap.length,
			numClippingPlanes: clipping.numPlanes,
			numClipIntersection: clipping.numIntersection,
			dithering: material.dithering,
			shadowMapEnabled: renderer.shadowMap.enabled && shadows.length > 0,
			shadowMapType: renderer.shadowMap.type,
			toneMapping: material.toneMapped ? renderer.toneMapping : NoToneMapping,
			physicallyCorrectLights: renderer.physicallyCorrectLights,
			premultipliedAlpha: material.premultipliedAlpha,
			doubleSided: material.side === DoubleSide,
			flipSided: material.side === BackSide,
			depthPacking: material.depthPacking !== undefined ? material.depthPacking : false,
			index0AttributeName: material.index0AttributeName,
			extensionDerivatives: material.extensions && material.extensions.derivatives,
			extensionFragDepth: material.extensions && material.extensions.fragDepth,
			extensionDrawBuffers: material.extensions && material.extensions.drawBuffers,
			extensionShaderTextureLOD: material.extensions && material.extensions.shaderTextureLOD,
			rendererExtensionFragDepth: isWebGL2 || extensions.has('EXT_frag_depth'),
			rendererExtensionDrawBuffers: isWebGL2 || extensions.has('WEBGL_draw_buffers'),
			rendererExtensionShaderTextureLod: isWebGL2 || extensions.has('EXT_shader_texture_lod'),
			customProgramCacheKey: material.customProgramCacheKey()
		};
		return parameters;
	}

	function getProgramCacheKey(parameters) {
		const array = [];

		if (parameters.shaderID) {
			array.push(parameters.shaderID);
		} else {
			array.push(parameters.customVertexShaderID);
			array.push(parameters.customFragmentShaderID);
		}

		if (parameters.defines !== undefined) {
			for (const name in parameters.defines) {
				array.push(name);
				array.push(parameters.defines[name]);
			}
		}

		if (parameters.isRawShaderMaterial === false) {
			getProgramCacheKeyParameters(array, parameters);
			getProgramCacheKeyBooleans(array, parameters);
			array.push(renderer.outputEncoding);
		}

		array.push(parameters.customProgramCacheKey);
		return array.join();
	}

	function getProgramCacheKeyParameters(array, parameters) {
		array.push(parameters.precision);
		array.push(parameters.outputEncoding);
		array.push(parameters.envMapMode);
		array.push(parameters.combine);
		array.push(parameters.vertexUvs);
		array.push(parameters.fogExp2);
		array.push(parameters.sizeAttenuation);
		array.push(parameters.maxBones);
		array.push(parameters.morphTargetsCount);
		array.push(parameters.numDirLights);
		array.push(parameters.numPointLights);
		array.push(parameters.numSpotLights);
		array.push(parameters.numHemiLights);
		array.push(parameters.numRectAreaLights);
		array.push(parameters.numDirLightShadows);
		array.push(parameters.numPointLightShadows);
		array.push(parameters.numSpotLightShadows);
		array.push(parameters.shadowMapType);
		array.push(parameters.toneMapping);
		array.push(parameters.numClippingPlanes);
		array.push(parameters.numClipIntersection);
	}

	function getProgramCacheKeyBooleans(array, parameters) {
		_programLayers.disableAll();

		if (parameters.isWebGL2) _programLayers.enable(0);
		if (parameters.supportsVertexTextures) _programLayers.enable(1);
		if (parameters.instancing) _programLayers.enable(2);
		if (parameters.instancingColor) _programLayers.enable(3);
		if (parameters.map) _programLayers.enable(4);
		if (parameters.matcap) _programLayers.enable(5);
		if (parameters.envMap) _programLayers.enable(6);
		if (parameters.envMapCubeUV) _programLayers.enable(7);
		if (parameters.lightMap) _programLayers.enable(8);
		if (parameters.aoMap) _programLayers.enable(9);
		if (parameters.emissiveMap) _programLayers.enable(10);
		if (parameters.bumpMap) _programLayers.enable(11);
		if (parameters.normalMap) _programLayers.enable(12);
		if (parameters.objectSpaceNormalMap) _programLayers.enable(13);
		if (parameters.tangentSpaceNormalMap) _programLayers.enable(14);
		if (parameters.clearcoat) _programLayers.enable(15);
		if (parameters.clearcoatMap) _programLayers.enable(16);
		if (parameters.clearcoatRoughnessMap) _programLayers.enable(17);
		if (parameters.clearcoatNormalMap) _programLayers.enable(18);
		if (parameters.displacementMap) _programLayers.enable(19);
		if (parameters.specularMap) _programLayers.enable(20);
		if (parameters.roughnessMap) _programLayers.enable(21);
		if (parameters.metalnessMap) _programLayers.enable(22);
		if (parameters.gradientMap) _programLayers.enable(23);
		if (parameters.alphaMap) _programLayers.enable(24);
		if (parameters.alphaTest) _programLayers.enable(25);
		if (parameters.vertexColors) _programLayers.enable(26);
		if (parameters.vertexAlphas) _programLayers.enable(27);
		if (parameters.vertexUvs) _programLayers.enable(28);
		if (parameters.vertexTangents) _programLayers.enable(29);
		if (parameters.uvsVertexOnly) _programLayers.enable(30);
		if (parameters.fog) _programLayers.enable(31);
		array.push(_programLayers.mask);

		_programLayers.disableAll();

		if (parameters.useFog) _programLayers.enable(0);
		if (parameters.flatShading) _programLayers.enable(1);
		if (parameters.logarithmicDepthBuffer) _programLayers.enable(2);
		if (parameters.skinning) _programLayers.enable(3);
		if (parameters.useVertexTexture) _programLayers.enable(4);
		if (parameters.morphTargets) _programLayers.enable(5);
		if (parameters.morphNormals) _programLayers.enable(6);
		if (parameters.premultipliedAlpha) _programLayers.enable(7);
		if (parameters.shadowMapEnabled) _programLayers.enable(8);
		if (parameters.physicallyCorrectLights) _programLayers.enable(9);
		if (parameters.doubleSided) _programLayers.enable(10);
		if (parameters.flipSided) _programLayers.enable(11);
		if (parameters.depthPacking) _programLayers.enable(12);
		if (parameters.dithering) _programLayers.enable(13);
		if (parameters.specularIntensityMap) _programLayers.enable(14);
		if (parameters.specularColorMap) _programLayers.enable(15);
		if (parameters.transmission) _programLayers.enable(16);
		if (parameters.transmissionMap) _programLayers.enable(17);
		if (parameters.thicknessMap) _programLayers.enable(18);
		if (parameters.sheen) _programLayers.enable(19);
		if (parameters.sheenColorMap) _programLayers.enable(20);
		if (parameters.sheenRoughnessMap) _programLayers.enable(21);
		if (parameters.decodeVideoTexture) _programLayers.enable(22);
		if (parameters.transparent) _programLayers.enable(23);
		array.push(_programLayers.mask);
	}

	function getUniforms(material) {
		const shaderID = shaderIDs[material.type];
		let uniforms;

		if (shaderID) {
			const shader = ShaderLib[shaderID];
			uniforms = UniformsUtils.clone(shader.uniforms);
		} else {
			uniforms = material.uniforms;
		}

		return uniforms;
	}

	function acquireProgram(parameters, cacheKey) {
		let program; // Check if code has been already compiled

		for (let p = 0, pl = programs.length; p < pl; p++) {
			const preexistingProgram = programs[p];

			if (preexistingProgram.cacheKey === cacheKey) {
				program = preexistingProgram;
				++program.usedTimes;
				break;
			}
		}

		if (program === undefined) {
			program = new WebGLProgram(renderer, cacheKey, parameters, bindingStates);
			programs.push(program);
		}

		return program;
	}

	function releaseProgram(program) {
		if (--program.usedTimes === 0) {
			// Remove from unordered set
			const i = programs.indexOf(program);
			programs[i] = programs[programs.length - 1];
			programs.pop(); // Free WebGL resources

			program.destroy();
		}
	}

	function releaseShaderCache(material) {
		_customShaders.remove(material);
	}

	function dispose() {
		_customShaders.dispose();
	}

	return {
		getParameters: getParameters,
		getProgramCacheKey: getProgramCacheKey,
		getUniforms: getUniforms,
		acquireProgram: acquireProgram,
		releaseProgram: releaseProgram,
		releaseShaderCache: releaseShaderCache,
		// Exposed for resource monitoring & error feedback via renderer.info:
		programs: programs,
		dispose: dispose
	};
}

function WebGLProperties() {
	let properties = new WeakMap();

	function get(object) {
		let map = properties.get(object);

		if (map === undefined) {
			map = {};
			properties.set(object, map);
		}

		return map;
	}

	function remove(object) {
		properties.delete(object);
	}

	function update(object, key, value) {
		properties.get(object)[key] = value;
	}

	function dispose() {
		properties = new WeakMap();
	}

	return {
		get: get,
		remove: remove,
		update: update,
		dispose: dispose
	};
}

function painterSortStable(a, b) {
	if (a.groupOrder !== b.groupOrder) {
		return a.groupOrder - b.groupOrder;
	} else if (a.renderOrder !== b.renderOrder) {
		return a.renderOrder - b.renderOrder;
	} else if (a.material.id !== b.material.id) {
		return a.material.id - b.material.id;
	} else if (a.z !== b.z) {
		return a.z - b.z;
	} else {
		return a.id - b.id;
	}
}

function reversePainterSortStable(a, b) {
	if (a.groupOrder !== b.groupOrder) {
		return a.groupOrder - b.groupOrder;
	} else if (a.renderOrder !== b.renderOrder) {
		return a.renderOrder - b.renderOrder;
	} else if (a.z !== b.z) {
		return b.z - a.z;
	} else {
		return a.id - b.id;
	}
}

function WebGLRenderList() {
	const renderItems = [];
	let renderItemsIndex = 0;
	const opaque = [];
	const transmissive = [];
	const transparent = [];

	function init() {
		renderItemsIndex = 0;
		opaque.length = 0;
		transmissive.length = 0;
		transparent.length = 0;
	}

	function getNextRenderItem(object, geometry, material, groupOrder, z, group) {
		let renderItem = renderItems[renderItemsIndex];

		if (renderItem === undefined) {
			renderItem = {
				id: object.id,
				object: object,
				geometry: geometry,
				material: material,
				groupOrder: groupOrder,
				renderOrder: object.renderOrder,
				z: z,
				group: group
			};
			renderItems[renderItemsIndex] = renderItem;
		} else {
			renderItem.id = object.id;
			renderItem.object = object;
			renderItem.geometry = geometry;
			renderItem.material = material;
			renderItem.groupOrder = groupOrder;
			renderItem.renderOrder = object.renderOrder;
			renderItem.z = z;
			renderItem.group = group;
		}

		renderItemsIndex++;
		return renderItem;
	}

	function push(object, geometry, material, groupOrder, z, group) {
		const renderItem = getNextRenderItem(object, geometry, material, groupOrder, z, group);

		if (material.transmission > 0.0) {
			transmissive.push(renderItem);
		} else if (material.transparent === true) {
			transparent.push(renderItem);
		} else {
			opaque.push(renderItem);
		}
	}

	function unshift(object, geometry, material, groupOrder, z, group) {
		const renderItem = getNextRenderItem(object, geometry, material, groupOrder, z, group);

		if (material.transmission > 0.0) {
			transmissive.unshift(renderItem);
		} else if (material.transparent === true) {
			transparent.unshift(renderItem);
		} else {
			opaque.unshift(renderItem);
		}
	}

	function sort(customOpaqueSort, customTransparentSort) {
		if (opaque.length > 1) opaque.sort(customOpaqueSort || painterSortStable);
		if (transmissive.length > 1) transmissive.sort(customTransparentSort || reversePainterSortStable);
		if (transparent.length > 1) transparent.sort(customTransparentSort || reversePainterSortStable);
	}

	function finish() {
		// Clear references from inactive renderItems in the list
		for (let i = renderItemsIndex, il = renderItems.length; i < il; i++) {
			const renderItem = renderItems[i];
			if (renderItem.id === null) break;
			renderItem.id = null;
			renderItem.object = null;
			renderItem.geometry = null;
			renderItem.material = null;
			renderItem.group = null;
		}
	}

	return {
		opaque: opaque,
		transmissive: transmissive,
		transparent: transparent,
		init: init,
		push: push,
		unshift: unshift,
		finish: finish,
		sort: sort
	};
}

function WebGLRenderLists() {
	let lists = new WeakMap();

	function get(scene, renderCallDepth) {
		let list;

		if (lists.has(scene) === false) {
			list = new WebGLRenderList();
			lists.set(scene, [list]);
		} else {
			if (renderCallDepth >= lists.get(scene).length) {
				list = new WebGLRenderList();
				lists.get(scene).push(list);
			} else {
				list = lists.get(scene)[renderCallDepth];
			}
		}

		return list;
	}

	function dispose() {
		lists = new WeakMap();
	}

	return {
		get: get,
		dispose: dispose
	};
}

function UniformsCache() {
	const lights = {};
	return {
		get: function (light) {
			if (lights[light.id] !== undefined) {
				return lights[light.id];
			}

			let uniforms;

			switch (light.type) {
				case 'DirectionalLight':
					uniforms = {
						direction: new Vector3(),
						color: new Color()
					};
					break;

				case 'SpotLight':
					uniforms = {
						position: new Vector3(),
						direction: new Vector3(),
						color: new Color(),
						distance: 0,
						coneCos: 0,
						penumbraCos: 0,
						decay: 0
					};
					break;

				case 'PointLight':
					uniforms = {
						position: new Vector3(),
						color: new Color(),
						distance: 0,
						decay: 0
					};
					break;

				case 'HemisphereLight':
					uniforms = {
						direction: new Vector3(),
						skyColor: new Color(),
						groundColor: new Color()
					};
					break;

				case 'RectAreaLight':
					uniforms = {
						color: new Color(),
						position: new Vector3(),
						halfWidth: new Vector3(),
						halfHeight: new Vector3()
					};
					break;
			}

			lights[light.id] = uniforms;
			return uniforms;
		}
	};
}

function ShadowUniformsCache() {
	const lights = {};
	return {
		get: function (light) {
			if (lights[light.id] !== undefined) {
				return lights[light.id];
			}

			let uniforms;

			switch (light.type) {
				case 'DirectionalLight':
					uniforms = {
						shadowBias: 0,
						shadowNormalBias: 0,
						shadowRadius: 1,
						shadowMapSize: new Vector2()
					};
					break;

				case 'SpotLight':
					uniforms = {
						shadowBias: 0,
						shadowNormalBias: 0,
						shadowRadius: 1,
						shadowMapSize: new Vector2()
					};
					break;

				case 'PointLight':
					uniforms = {
						shadowBias: 0,
						shadowNormalBias: 0,
						shadowRadius: 1,
						shadowMapSize: new Vector2(),
						shadowCameraNear: 1,
						shadowCameraFar: 1000
					};
					break;
				// TODO (abelnation): set RectAreaLight shadow uniforms
			}

			lights[light.id] = uniforms;
			return uniforms;
		}
	};
}

let nextVersion = 0;

function shadowCastingLightsFirst(lightA, lightB) {
	return (lightB.castShadow ? 1 : 0) - (lightA.castShadow ? 1 : 0);
}

function WebGLLights(extensions, capabilities) {
	const cache = new UniformsCache();
	const shadowCache = ShadowUniformsCache();
	const state = {
		version: 0,
		hash: {
			directionalLength: -1,
			pointLength: -1,
			spotLength: -1,
			rectAreaLength: -1,
			hemiLength: -1,
			numDirectionalShadows: -1,
			numPointShadows: -1,
			numSpotShadows: -1
		},
		ambient: [0, 0, 0],
		probe: [],
		directional: [],
		directionalShadow: [],
		directionalShadowMap: [],
		directionalShadowMatrix: [],
		spot: [],
		spotShadow: [],
		spotShadowMap: [],
		spotShadowMatrix: [],
		rectArea: [],
		rectAreaLTC1: null,
		rectAreaLTC2: null,
		point: [],
		pointShadow: [],
		pointShadowMap: [],
		pointShadowMatrix: [],
		hemi: []
	};

	for (let i = 0; i < 9; i++) state.probe.push(new Vector3());

	const vector3 = new Vector3();
	const matrix4 = new Matrix4();
	const matrix42 = new Matrix4();

	function setup(lights, physicallyCorrectLights) {
		let r = 0,
				g = 0,
				b = 0;

		for (let i = 0; i < 9; i++) state.probe[i].set(0, 0, 0);

		let directionalLength = 0;
		let pointLength = 0;
		let spotLength = 0;
		let rectAreaLength = 0;
		let hemiLength = 0;
		let numDirectionalShadows = 0;
		let numPointShadows = 0;
		let numSpotShadows = 0;
		lights.sort(shadowCastingLightsFirst); // artist-friendly light intensity scaling factor

		const scaleFactor = physicallyCorrectLights !== true ? Math.PI : 1;

		for (let i = 0, l = lights.length; i < l; i++) {
			const light = lights[i];
			const color = light.color;
			const intensity = light.intensity;
			const distance = light.distance;
			const shadowMap = light.shadow && light.shadow.map ? light.shadow.map.texture : null;

			if (light.isAmbientLight) {
				r += color.r * intensity * scaleFactor;
				g += color.g * intensity * scaleFactor;
				b += color.b * intensity * scaleFactor;
			} else if (light.isLightProbe) {
				for (let j = 0; j < 9; j++) {
					state.probe[j].addScaledVector(light.sh.coefficients[j], intensity);
				}
			} else if (light.isDirectionalLight) {
				const uniforms = cache.get(light);
				uniforms.color.copy(light.color).multiplyScalar(light.intensity * scaleFactor);

				if (light.castShadow) {
					const shadow = light.shadow;
					const shadowUniforms = shadowCache.get(light);
					shadowUniforms.shadowBias = shadow.bias;
					shadowUniforms.shadowNormalBias = shadow.normalBias;
					shadowUniforms.shadowRadius = shadow.radius;
					shadowUniforms.shadowMapSize = shadow.mapSize;
					state.directionalShadow[directionalLength] = shadowUniforms;
					state.directionalShadowMap[directionalLength] = shadowMap;
					state.directionalShadowMatrix[directionalLength] = light.shadow.matrix;
					numDirectionalShadows++;
				}

				state.directional[directionalLength] = uniforms;
				directionalLength++;
			} else if (light.isSpotLight) {
				const uniforms = cache.get(light);
				uniforms.position.setFromMatrixPosition(light.matrixWorld);
				uniforms.color.copy(color).multiplyScalar(intensity * scaleFactor);
				uniforms.distance = distance;
				uniforms.coneCos = Math.cos(light.angle);
				uniforms.penumbraCos = Math.cos(light.angle * (1 - light.penumbra));
				uniforms.decay = light.decay;

				if (light.castShadow) {
					const shadow = light.shadow;
					const shadowUniforms = shadowCache.get(light);
					shadowUniforms.shadowBias = shadow.bias;
					shadowUniforms.shadowNormalBias = shadow.normalBias;
					shadowUniforms.shadowRadius = shadow.radius;
					shadowUniforms.shadowMapSize = shadow.mapSize;
					state.spotShadow[spotLength] = shadowUniforms;
					state.spotShadowMap[spotLength] = shadowMap;
					state.spotShadowMatrix[spotLength] = light.shadow.matrix;
					numSpotShadows++;
				}

				state.spot[spotLength] = uniforms;
				spotLength++;
			} else if (light.isRectAreaLight) {
				const uniforms = cache.get(light); // (a) intensity is the total visible light emitted
				//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );
				// (b) intensity is the brightness of the light

				uniforms.color.copy(color).multiplyScalar(intensity);
				uniforms.halfWidth.set(light.width * 0.5, 0.0, 0.0);
				uniforms.halfHeight.set(0.0, light.height * 0.5, 0.0);
				state.rectArea[rectAreaLength] = uniforms;
				rectAreaLength++;
			} else if (light.isPointLight) {
				const uniforms = cache.get(light);
				uniforms.color.copy(light.color).multiplyScalar(light.intensity * scaleFactor);
				uniforms.distance = light.distance;
				uniforms.decay = light.decay;

				if (light.castShadow) {
					const shadow = light.shadow;
					const shadowUniforms = shadowCache.get(light);
					shadowUniforms.shadowBias = shadow.bias;
					shadowUniforms.shadowNormalBias = shadow.normalBias;
					shadowUniforms.shadowRadius = shadow.radius;
					shadowUniforms.shadowMapSize = shadow.mapSize;
					shadowUniforms.shadowCameraNear = shadow.camera.near;
					shadowUniforms.shadowCameraFar = shadow.camera.far;
					state.pointShadow[pointLength] = shadowUniforms;
					state.pointShadowMap[pointLength] = shadowMap;
					state.pointShadowMatrix[pointLength] = light.shadow.matrix;
					numPointShadows++;
				}

				state.point[pointLength] = uniforms;
				pointLength++;
			} else if (light.isHemisphereLight) {
				const uniforms = cache.get(light);
				uniforms.skyColor.copy(light.color).multiplyScalar(intensity * scaleFactor);
				uniforms.groundColor.copy(light.groundColor).multiplyScalar(intensity * scaleFactor);
				state.hemi[hemiLength] = uniforms;
				hemiLength++;
			}
		}

		if (rectAreaLength > 0) {
			if (capabilities.isWebGL2) {
				// WebGL 2
				state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
				state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;
			} else {
				// WebGL 1
				if (extensions.has('OES_texture_float_linear') === true) {
					state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
					state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;
				} else if (extensions.has('OES_texture_half_float_linear') === true) {
					state.rectAreaLTC1 = UniformsLib.LTC_HALF_1;
					state.rectAreaLTC2 = UniformsLib.LTC_HALF_2;
				} else {
					console.error('THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.');
				}
			}
		}

		state.ambient[0] = r;
		state.ambient[1] = g;
		state.ambient[2] = b;
		const hash = state.hash;

		if (hash.directionalLength !== directionalLength || hash.pointLength !== pointLength || hash.spotLength !== spotLength || hash.rectAreaLength !== rectAreaLength || hash.hemiLength !== hemiLength || hash.numDirectionalShadows !== numDirectionalShadows || hash.numPointShadows !== numPointShadows || hash.numSpotShadows !== numSpotShadows) {
			state.directional.length = directionalLength;
			state.spot.length = spotLength;
			state.rectArea.length = rectAreaLength;
			state.point.length = pointLength;
			state.hemi.length = hemiLength;
			state.directionalShadow.length = numDirectionalShadows;
			state.directionalShadowMap.length = numDirectionalShadows;
			state.pointShadow.length = numPointShadows;
			state.pointShadowMap.length = numPointShadows;
			state.spotShadow.length = numSpotShadows;
			state.spotShadowMap.length = numSpotShadows;
			state.directionalShadowMatrix.length = numDirectionalShadows;
			state.pointShadowMatrix.length = numPointShadows;
			state.spotShadowMatrix.length = numSpotShadows;
			hash.directionalLength = directionalLength;
			hash.pointLength = pointLength;
			hash.spotLength = spotLength;
			hash.rectAreaLength = rectAreaLength;
			hash.hemiLength = hemiLength;
			hash.numDirectionalShadows = numDirectionalShadows;
			hash.numPointShadows = numPointShadows;
			hash.numSpotShadows = numSpotShadows;
			state.version = nextVersion++;
		}
	}

	function setupView(lights, camera) {
		let directionalLength = 0;
		let pointLength = 0;
		let spotLength = 0;
		let rectAreaLength = 0;
		let hemiLength = 0;
		const viewMatrix = camera.matrixWorldInverse;

		for (let i = 0, l = lights.length; i < l; i++) {
			const light = lights[i];

			if (light.isDirectionalLight) {
				const uniforms = state.directional[directionalLength];
				uniforms.direction.setFromMatrixPosition(light.matrixWorld);
				vector3.setFromMatrixPosition(light.target.matrixWorld);
				uniforms.direction.sub(vector3);
				uniforms.direction.transformDirection(viewMatrix);
				directionalLength++;
			} else if (light.isSpotLight) {
				const uniforms = state.spot[spotLength];
				uniforms.position.setFromMatrixPosition(light.matrixWorld);
				uniforms.position.applyMatrix4(viewMatrix);
				uniforms.direction.setFromMatrixPosition(light.matrixWorld);
				vector3.setFromMatrixPosition(light.target.matrixWorld);
				uniforms.direction.sub(vector3);
				uniforms.direction.transformDirection(viewMatrix);
				spotLength++;
			} else if (light.isRectAreaLight) {
				const uniforms = state.rectArea[rectAreaLength];
				uniforms.position.setFromMatrixPosition(light.matrixWorld);
				uniforms.position.applyMatrix4(viewMatrix); // extract local rotation of light to derive width/height half vectors

				matrix42.identity();
				matrix4.copy(light.matrixWorld);
				matrix4.premultiply(viewMatrix);
				matrix42.extractRotation(matrix4);
				uniforms.halfWidth.set(light.width * 0.5, 0.0, 0.0);
				uniforms.halfHeight.set(0.0, light.height * 0.5, 0.0);
				uniforms.halfWidth.applyMatrix4(matrix42);
				uniforms.halfHeight.applyMatrix4(matrix42);
				rectAreaLength++;
			} else if (light.isPointLight) {
				const uniforms = state.point[pointLength];
				uniforms.position.setFromMatrixPosition(light.matrixWorld);
				uniforms.position.applyMatrix4(viewMatrix);
				pointLength++;
			} else if (light.isHemisphereLight) {
				const uniforms = state.hemi[hemiLength];
				uniforms.direction.setFromMatrixPosition(light.matrixWorld);
				uniforms.direction.transformDirection(viewMatrix);
				uniforms.direction.normalize();
				hemiLength++;
			}
		}
	}

	return {
		setup: setup,
		setupView: setupView,
		state: state
	};
}

function WebGLRenderState(extensions, capabilities) {
	const lights = new WebGLLights(extensions, capabilities);
	const lightsArray = [];
	const shadowsArray = [];

	function init() {
		lightsArray.length = 0;
		shadowsArray.length = 0;
	}

	function pushLight(light) {
		lightsArray.push(light);
	}

	function pushShadow(shadowLight) {
		shadowsArray.push(shadowLight);
	}

	function setupLights(physicallyCorrectLights) {
		lights.setup(lightsArray, physicallyCorrectLights);
	}

	function setupLightsView(camera) {
		lights.setupView(lightsArray, camera);
	}

	const state = {
		lightsArray: lightsArray,
		shadowsArray: shadowsArray,
		lights: lights
	};
	return {
		init: init,
		state: state,
		setupLights: setupLights,
		setupLightsView: setupLightsView,
		pushLight: pushLight,
		pushShadow: pushShadow
	};
}

function WebGLRenderStates(extensions, capabilities) {
	let renderStates = new WeakMap();

	function get(scene, renderCallDepth = 0) {
		let renderState;

		if (renderStates.has(scene) === false) {
			renderState = new WebGLRenderState(extensions, capabilities);
			renderStates.set(scene, [renderState]);
		} else {
			if (renderCallDepth >= renderStates.get(scene).length) {
				renderState = new WebGLRenderState(extensions, capabilities);
				renderStates.get(scene).push(renderState);
			} else {
				renderState = renderStates.get(scene)[renderCallDepth];
			}
		}

		return renderState;
	}

	function dispose() {
		renderStates = new WeakMap();
	}

	return {
		get: get,
		dispose: dispose
	};
}

/**
 * parameters = {
 *
 *	opacity: <float>,
 *
 *	map: new THREE.Texture( <Image> ),
 *
 *	alphaMap: new THREE.Texture( <Image> ),
 *
 *	displacementMap: new THREE.Texture( <Image> ),
 *	displacementScale: <float>,
 *	displacementBias: <float>,
 *
 *	wireframe: <boolean>,
 *	wireframeLinewidth: <float>
 * }
 */

class MeshDepthMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'MeshDepthMaterial';
		this.depthPacking = BasicDepthPacking;
		this.map = null;
		this.alphaMap = null;
		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;
		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.fog = false;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.depthPacking = source.depthPacking;
		this.map = source.map;
		this.alphaMap = source.alphaMap;
		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;
		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		return this;
	}

}

MeshDepthMaterial.prototype.isMeshDepthMaterial = true;

/**
 * parameters = {
 *
 *	referencePosition: <float>,
 *	nearDistance: <float>,
 *	farDistance: <float>,
 *
 *	map: new THREE.Texture( <Image> ),
 *
 *	alphaMap: new THREE.Texture( <Image> ),
 *
 *	displacementMap: new THREE.Texture( <Image> ),
 *	displacementScale: <float>,
 *	displacementBias: <float>
 *
 * }
 */

class MeshDistanceMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'MeshDistanceMaterial';
		this.referencePosition = new Vector3();
		this.nearDistance = 1;
		this.farDistance = 1000;
		this.map = null;
		this.alphaMap = null;
		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;
		this.fog = false;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.referencePosition.copy(source.referencePosition);
		this.nearDistance = source.nearDistance;
		this.farDistance = source.farDistance;
		this.map = source.map;
		this.alphaMap = source.alphaMap;
		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;
		return this;
	}

}

MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;

const vertex = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";
const fragment = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tconst float samples = float( VSM_SAMPLES );\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";

function WebGLShadowMap(_renderer, _objects, _capabilities) {
	let _frustum = new Frustum();

	const _shadowMapSize = new Vector2(),
				_viewportSize = new Vector2(),
				_viewport = new Vector4(),
				_depthMaterial = new MeshDepthMaterial({
		depthPacking: RGBADepthPacking
	}),
				_distanceMaterial = new MeshDistanceMaterial(),
				_materialCache = {},
				_maxTextureSize = _capabilities.maxTextureSize;

	const shadowSide = {
		0: BackSide,
		1: FrontSide,
		2: DoubleSide
	};
	const shadowMaterialVertical = new ShaderMaterial({
		defines: {
			VSM_SAMPLES: 8
		},
		uniforms: {
			shadow_pass: {
				value: null
			},
			resolution: {
				value: new Vector2()
			},
			radius: {
				value: 4.0
			}
		},
		vertexShader: vertex,
		fragmentShader: fragment
	});
	const shadowMaterialHorizontal = shadowMaterialVertical.clone();
	shadowMaterialHorizontal.defines.HORIZONTAL_PASS = 1;
	const fullScreenTri = new BufferGeometry();
	fullScreenTri.setAttribute('position', new BufferAttribute(new Float32Array([-1, -1, 0.5, 3, -1, 0.5, -1, 3, 0.5]), 3));
	const fullScreenMesh = new Mesh(fullScreenTri, shadowMaterialVertical);
	const scope = this;
	this.enabled = false;
	this.autoUpdate = true;
	this.needsUpdate = false;
	this.type = PCFShadowMap;

	this.render = function (lights, scene, camera) {
		if (scope.enabled === false) return;
		if (scope.autoUpdate === false && scope.needsUpdate === false) return;
		if (lights.length === 0) return;

		const currentRenderTarget = _renderer.getRenderTarget();

		const activeCubeFace = _renderer.getActiveCubeFace();

		const activeMipmapLevel = _renderer.getActiveMipmapLevel();

		const _state = _renderer.state; // Set GL state for depth map.

		_state.setBlending(NoBlending);

		_state.buffers.color.setClear(1, 1, 1, 1);

		_state.buffers.depth.setTest(true);

		_state.setScissorTest(false); // render depth map


		for (let i = 0, il = lights.length; i < il; i++) {
			const light = lights[i];
			const shadow = light.shadow;

			if (shadow === undefined) {
				console.warn('THREE.WebGLShadowMap:', light, 'has no shadow.');
				continue;
			}

			if (shadow.autoUpdate === false && shadow.needsUpdate === false) continue;

			_shadowMapSize.copy(shadow.mapSize);

			const shadowFrameExtents = shadow.getFrameExtents();

			_shadowMapSize.multiply(shadowFrameExtents);

			_viewportSize.copy(shadow.mapSize);

			if (_shadowMapSize.x > _maxTextureSize || _shadowMapSize.y > _maxTextureSize) {
				if (_shadowMapSize.x > _maxTextureSize) {
					_viewportSize.x = Math.floor(_maxTextureSize / shadowFrameExtents.x);
					_shadowMapSize.x = _viewportSize.x * shadowFrameExtents.x;
					shadow.mapSize.x = _viewportSize.x;
				}

				if (_shadowMapSize.y > _maxTextureSize) {
					_viewportSize.y = Math.floor(_maxTextureSize / shadowFrameExtents.y);
					_shadowMapSize.y = _viewportSize.y * shadowFrameExtents.y;
					shadow.mapSize.y = _viewportSize.y;
				}
			}

			if (shadow.map === null && !shadow.isPointLightShadow && this.type === VSMShadowMap) {
				const pars = {
					minFilter: LinearFilter,
					magFilter: LinearFilter,
					format: RGBAFormat
				};
				shadow.map = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
				shadow.map.texture.name = light.name + '.shadowMap';
				shadow.mapPass = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
				shadow.camera.updateProjectionMatrix();
			}

			if (shadow.map === null) {
				const pars = {
					minFilter: NearestFilter,
					magFilter: NearestFilter,
					format: RGBAFormat
				};
				shadow.map = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
				shadow.map.texture.name = light.name + '.shadowMap';
				shadow.camera.updateProjectionMatrix();
			}

			_renderer.setRenderTarget(shadow.map);

			_renderer.clear();

			const viewportCount = shadow.getViewportCount();

			for (let vp = 0; vp < viewportCount; vp++) {
				const viewport = shadow.getViewport(vp);

				_viewport.set(_viewportSize.x * viewport.x, _viewportSize.y * viewport.y, _viewportSize.x * viewport.z, _viewportSize.y * viewport.w);

				_state.viewport(_viewport);

				shadow.updateMatrices(light, vp);
				_frustum = shadow.getFrustum();
				renderObject(scene, camera, shadow.camera, light, this.type);
			} // do blur pass for VSM


			if (!shadow.isPointLightShadow && this.type === VSMShadowMap) {
				VSMPass(shadow, camera);
			}

			shadow.needsUpdate = false;
		}

		scope.needsUpdate = false;

		_renderer.setRenderTarget(currentRenderTarget, activeCubeFace, activeMipmapLevel);
	};

	function VSMPass(shadow, camera) {
		const geometry = _objects.update(fullScreenMesh);

		if (shadowMaterialVertical.defines.VSM_SAMPLES !== shadow.blurSamples) {
			shadowMaterialVertical.defines.VSM_SAMPLES = shadow.blurSamples;
			shadowMaterialHorizontal.defines.VSM_SAMPLES = shadow.blurSamples;
			shadowMaterialVertical.needsUpdate = true;
			shadowMaterialHorizontal.needsUpdate = true;
		} // vertical pass


		shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture;
		shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize;
		shadowMaterialVertical.uniforms.radius.value = shadow.radius;

		_renderer.setRenderTarget(shadow.mapPass);

		_renderer.clear();

		_renderer.renderBufferDirect(camera, null, geometry, shadowMaterialVertical, fullScreenMesh, null); // horizontal pass


		shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture;
		shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize;
		shadowMaterialHorizontal.uniforms.radius.value = shadow.radius;

		_renderer.setRenderTarget(shadow.map);

		_renderer.clear();

		_renderer.renderBufferDirect(camera, null, geometry, shadowMaterialHorizontal, fullScreenMesh, null);
	}

	function getDepthMaterial(object, geometry, material, light, shadowCameraNear, shadowCameraFar, type) {
		let result = null;
		const customMaterial = light.isPointLight === true ? object.customDistanceMaterial : object.customDepthMaterial;

		if (customMaterial !== undefined) {
			result = customMaterial;
		} else {
			result = light.isPointLight === true ? _distanceMaterial : _depthMaterial;
		}

		if (_renderer.localClippingEnabled && material.clipShadows === true && material.clippingPlanes.length !== 0 || material.displacementMap && material.displacementScale !== 0 || material.alphaMap && material.alphaTest > 0) {
			// in this case we need a unique material instance reflecting the
			// appropriate state
			const keyA = result.uuid,
						keyB = material.uuid;
			let materialsForVariant = _materialCache[keyA];

			if (materialsForVariant === undefined) {
				materialsForVariant = {};
				_materialCache[keyA] = materialsForVariant;
			}

			let cachedMaterial = materialsForVariant[keyB];

			if (cachedMaterial === undefined) {
				cachedMaterial = result.clone();
				materialsForVariant[keyB] = cachedMaterial;
			}

			result = cachedMaterial;
		}

		result.visible = material.visible;
		result.wireframe = material.wireframe;

		if (type === VSMShadowMap) {
			result.side = material.shadowSide !== null ? material.shadowSide : material.side;
		} else {
			result.side = material.shadowSide !== null ? material.shadowSide : shadowSide[material.side];
		}

		result.alphaMap = material.alphaMap;
		result.alphaTest = material.alphaTest;
		result.clipShadows = material.clipShadows;
		result.clippingPlanes = material.clippingPlanes;
		result.clipIntersection = material.clipIntersection;
		result.displacementMap = material.displacementMap;
		result.displacementScale = material.displacementScale;
		result.displacementBias = material.displacementBias;
		result.wireframeLinewidth = material.wireframeLinewidth;
		result.linewidth = material.linewidth;

		if (light.isPointLight === true && result.isMeshDistanceMaterial === true) {
			result.referencePosition.setFromMatrixPosition(light.matrixWorld);
			result.nearDistance = shadowCameraNear;
			result.farDistance = shadowCameraFar;
		}

		return result;
	}

	function renderObject(object, camera, shadowCamera, light, type) {
		if (object.visible === false) return;
		const visible = object.layers.test(camera.layers);

		if (visible && (object.isMesh || object.isLine || object.isPoints)) {
			if ((object.castShadow || object.receiveShadow && type === VSMShadowMap) && (!object.frustumCulled || _frustum.intersectsObject(object))) {
				object.modelViewMatrix.multiplyMatrices(shadowCamera.matrixWorldInverse, object.matrixWorld);

				const geometry = _objects.update(object);

				const material = object.material;

				if (Array.isArray(material)) {
					const groups = geometry.groups;

					for (let k = 0, kl = groups.length; k < kl; k++) {
						const group = groups[k];
						const groupMaterial = material[group.materialIndex];

						if (groupMaterial && groupMaterial.visible) {
							const depthMaterial = getDepthMaterial(object, geometry, groupMaterial, light, shadowCamera.near, shadowCamera.far, type);

							_renderer.renderBufferDirect(shadowCamera, null, geometry, depthMaterial, object, group);
						}
					}
				} else if (material.visible) {
					const depthMaterial = getDepthMaterial(object, geometry, material, light, shadowCamera.near, shadowCamera.far, type);

					_renderer.renderBufferDirect(shadowCamera, null, geometry, depthMaterial, object, null);
				}
			}
		}

		const children = object.children;

		for (let i = 0, l = children.length; i < l; i++) {
			renderObject(children[i], camera, shadowCamera, light, type);
		}
	}
}

function WebGLState(gl, extensions, capabilities) {
	const isWebGL2 = capabilities.isWebGL2;

	function ColorBuffer() {
		let locked = false;
		const color = new Vector4();
		let currentColorMask = null;
		const currentColorClear = new Vector4(0, 0, 0, 0);
		return {
			setMask: function (colorMask) {
				if (currentColorMask !== colorMask && !locked) {
					gl.colorMask(colorMask, colorMask, colorMask, colorMask);
					currentColorMask = colorMask;
				}
			},
			setLocked: function (lock) {
				locked = lock;
			},
			setClear: function (r, g, b, a, premultipliedAlpha) {
				if (premultipliedAlpha === true) {
					r *= a;
					g *= a;
					b *= a;
				}

				color.set(r, g, b, a);

				if (currentColorClear.equals(color) === false) {
					gl.clearColor(r, g, b, a);
					currentColorClear.copy(color);
				}
			},
			reset: function () {
				locked = false;
				currentColorMask = null;
				currentColorClear.set(-1, 0, 0, 0); // set to invalid state
			}
		};
	}

	function DepthBuffer() {
		let locked = false;
		let currentDepthMask = null;
		let currentDepthFunc = null;
		let currentDepthClear = null;
		return {
			setTest: function (depthTest) {
				if (depthTest) {
					enable(gl.DEPTH_TEST);
				} else {
					disable(gl.DEPTH_TEST);
				}
			},
			setMask: function (depthMask) {
				if (currentDepthMask !== depthMask && !locked) {
					gl.depthMask(depthMask);
					currentDepthMask = depthMask;
				}
			},
			setFunc: function (depthFunc) {
				if (currentDepthFunc !== depthFunc) {
					if (depthFunc) {
						switch (depthFunc) {
							case NeverDepth:
								gl.depthFunc(gl.NEVER);
								break;

							case AlwaysDepth:
								gl.depthFunc(gl.ALWAYS);
								break;

							case LessDepth:
								gl.depthFunc(gl.LESS);
								break;

							case LessEqualDepth:
								gl.depthFunc(gl.LEQUAL);
								break;

							case EqualDepth:
								gl.depthFunc(gl.EQUAL);
								break;

							case GreaterEqualDepth:
								gl.depthFunc(gl.GEQUAL);
								break;

							case GreaterDepth:
								gl.depthFunc(gl.GREATER);
								break;

							case NotEqualDepth:
								gl.depthFunc(gl.NOTEQUAL);
								break;

							default:
								gl.depthFunc(gl.LEQUAL);
						}
					} else {
						gl.depthFunc(gl.LEQUAL);
					}

					currentDepthFunc = depthFunc;
				}
			},
			setLocked: function (lock) {
				locked = lock;
			},
			setClear: function (depth) {
				if (currentDepthClear !== depth) {
					gl.clearDepth(depth);
					currentDepthClear = depth;
				}
			},
			reset: function () {
				locked = false;
				currentDepthMask = null;
				currentDepthFunc = null;
				currentDepthClear = null;
			}
		};
	}

	function StencilBuffer() {
		let locked = false;
		let currentStencilMask = null;
		let currentStencilFunc = null;
		let currentStencilRef = null;
		let currentStencilFuncMask = null;
		let currentStencilFail = null;
		let currentStencilZFail = null;
		let currentStencilZPass = null;
		let currentStencilClear = null;
		return {
			setTest: function (stencilTest) {
				if (!locked) {
					if (stencilTest) {
						enable(gl.STENCIL_TEST);
					} else {
						disable(gl.STENCIL_TEST);
					}
				}
			},
			setMask: function (stencilMask) {
				if (currentStencilMask !== stencilMask && !locked) {
					gl.stencilMask(stencilMask);
					currentStencilMask = stencilMask;
				}
			},
			setFunc: function (stencilFunc, stencilRef, stencilMask) {
				if (currentStencilFunc !== stencilFunc || currentStencilRef !== stencilRef || currentStencilFuncMask !== stencilMask) {
					gl.stencilFunc(stencilFunc, stencilRef, stencilMask);
					currentStencilFunc = stencilFunc;
					currentStencilRef = stencilRef;
					currentStencilFuncMask = stencilMask;
				}
			},
			setOp: function (stencilFail, stencilZFail, stencilZPass) {
				if (currentStencilFail !== stencilFail || currentStencilZFail !== stencilZFail || currentStencilZPass !== stencilZPass) {
					gl.stencilOp(stencilFail, stencilZFail, stencilZPass);
					currentStencilFail = stencilFail;
					currentStencilZFail = stencilZFail;
					currentStencilZPass = stencilZPass;
				}
			},
			setLocked: function (lock) {
				locked = lock;
			},
			setClear: function (stencil) {
				if (currentStencilClear !== stencil) {
					gl.clearStencil(stencil);
					currentStencilClear = stencil;
				}
			},
			reset: function () {
				locked = false;
				currentStencilMask = null;
				currentStencilFunc = null;
				currentStencilRef = null;
				currentStencilFuncMask = null;
				currentStencilFail = null;
				currentStencilZFail = null;
				currentStencilZPass = null;
				currentStencilClear = null;
			}
		};
	} //


	const colorBuffer = new ColorBuffer();
	const depthBuffer = new DepthBuffer();
	const stencilBuffer = new StencilBuffer();
	let enabledCapabilities = {};
	let currentBoundFramebuffers = {};
	let currentDrawbuffers = new WeakMap();
	let defaultDrawbuffers = [];
	let currentProgram = null;
	let currentBlendingEnabled = false;
	let currentBlending = null;
	let currentBlendEquation = null;
	let currentBlendSrc = null;
	let currentBlendDst = null;
	let currentBlendEquationAlpha = null;
	let currentBlendSrcAlpha = null;
	let currentBlendDstAlpha = null;
	let currentPremultipledAlpha = false;
	let currentFlipSided = null;
	let currentCullFace = null;
	let currentLineWidth = null;
	let currentPolygonOffsetFactor = null;
	let currentPolygonOffsetUnits = null;
	const maxTextures = gl.getParameter(gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS);
	let lineWidthAvailable = false;
	let version = 0;
	const glVersion = gl.getParameter(gl.VERSION);

	if (glVersion.indexOf('WebGL') !== -1) {
		version = parseFloat(/^WebGL (\d)/.exec(glVersion)[1]);
		lineWidthAvailable = version >= 1.0;
	} else if (glVersion.indexOf('OpenGL ES') !== -1) {
		version = parseFloat(/^OpenGL ES (\d)/.exec(glVersion)[1]);
		lineWidthAvailable = version >= 2.0;
	}

	let currentTextureSlot = null;
	let currentBoundTextures = {};
	const scissorParam = gl.getParameter(gl.SCISSOR_BOX);
	const viewportParam = gl.getParameter(gl.VIEWPORT);
	const currentScissor = new Vector4().fromArray(scissorParam);
	const currentViewport = new Vector4().fromArray(viewportParam);

	function createTexture(type, target, count) {
		const data = new Uint8Array(4); // 4 is required to match default unpack alignment of 4.

		const texture = gl.createTexture();
		gl.bindTexture(type, texture);
		gl.texParameteri(type, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
		gl.texParameteri(type, gl.TEXTURE_MAG_FILTER, gl.NEAREST);

		for (let i = 0; i < count; i++) {
			gl.texImage2D(target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data);
		}

		return texture;
	}

	const emptyTextures = {};
	emptyTextures[gl.TEXTURE_2D] = createTexture(gl.TEXTURE_2D, gl.TEXTURE_2D, 1);
	emptyTextures[gl.TEXTURE_CUBE_MAP] = createTexture(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6); // init

	colorBuffer.setClear(0, 0, 0, 1);
	depthBuffer.setClear(1);
	stencilBuffer.setClear(0);
	enable(gl.DEPTH_TEST);
	depthBuffer.setFunc(LessEqualDepth);
	setFlipSided(false);
	setCullFace(CullFaceBack);
	enable(gl.CULL_FACE);
	setBlending(NoBlending); //

	function enable(id) {
		if (enabledCapabilities[id] !== true) {
			gl.enable(id);
			enabledCapabilities[id] = true;
		}
	}

	function disable(id) {
		if (enabledCapabilities[id] !== false) {
			gl.disable(id);
			enabledCapabilities[id] = false;
		}
	}

	function bindFramebuffer(target, framebuffer) {
		if (currentBoundFramebuffers[target] !== framebuffer) {
			gl.bindFramebuffer(target, framebuffer);
			currentBoundFramebuffers[target] = framebuffer;

			if (isWebGL2) {
				// gl.DRAW_FRAMEBUFFER is equivalent to gl.FRAMEBUFFER
				if (target === gl.DRAW_FRAMEBUFFER) {
					currentBoundFramebuffers[gl.FRAMEBUFFER] = framebuffer;
				}

				if (target === gl.FRAMEBUFFER) {
					currentBoundFramebuffers[gl.DRAW_FRAMEBUFFER] = framebuffer;
				}
			}

			return true;
		}

		return false;
	}

	function drawBuffers(renderTarget, framebuffer) {
		let drawBuffers = defaultDrawbuffers;
		let needsUpdate = false;

		if (renderTarget) {
			drawBuffers = currentDrawbuffers.get(framebuffer);

			if (drawBuffers === undefined) {
				drawBuffers = [];
				currentDrawbuffers.set(framebuffer, drawBuffers);
			}

			if (renderTarget.isWebGLMultipleRenderTargets) {
				const textures = renderTarget.texture;

				if (drawBuffers.length !== textures.length || drawBuffers[0] !== gl.COLOR_ATTACHMENT0) {
					for (let i = 0, il = textures.length; i < il; i++) {
						drawBuffers[i] = gl.COLOR_ATTACHMENT0 + i;
					}

					drawBuffers.length = textures.length;
					needsUpdate = true;
				}
			} else {
				if (drawBuffers[0] !== gl.COLOR_ATTACHMENT0) {
					drawBuffers[0] = gl.COLOR_ATTACHMENT0;
					needsUpdate = true;
				}
			}
		} else {
			if (drawBuffers[0] !== gl.BACK) {
				drawBuffers[0] = gl.BACK;
				needsUpdate = true;
			}
		}

		if (needsUpdate) {
			if (capabilities.isWebGL2) {
				gl.drawBuffers(drawBuffers);
			} else {
				extensions.get('WEBGL_draw_buffers').drawBuffersWEBGL(drawBuffers);
			}
		}
	}

	function useProgram(program) {
		if (currentProgram !== program) {
			gl.useProgram(program);
			currentProgram = program;
			return true;
		}

		return false;
	}

	const equationToGL = {
		[AddEquation]: gl.FUNC_ADD,
		[SubtractEquation]: gl.FUNC_SUBTRACT,
		[ReverseSubtractEquation]: gl.FUNC_REVERSE_SUBTRACT
	};

	if (isWebGL2) {
		equationToGL[MinEquation] = gl.MIN;
		equationToGL[MaxEquation] = gl.MAX;
	} else {
		const extension = extensions.get('EXT_blend_minmax');

		if (extension !== null) {
			equationToGL[MinEquation] = extension.MIN_EXT;
			equationToGL[MaxEquation] = extension.MAX_EXT;
		}
	}

	const factorToGL = {
		[ZeroFactor]: gl.ZERO,
		[OneFactor]: gl.ONE,
		[SrcColorFactor]: gl.SRC_COLOR,
		[SrcAlphaFactor]: gl.SRC_ALPHA,
		[SrcAlphaSaturateFactor]: gl.SRC_ALPHA_SATURATE,
		[DstColorFactor]: gl.DST_COLOR,
		[DstAlphaFactor]: gl.DST_ALPHA,
		[OneMinusSrcColorFactor]: gl.ONE_MINUS_SRC_COLOR,
		[OneMinusSrcAlphaFactor]: gl.ONE_MINUS_SRC_ALPHA,
		[OneMinusDstColorFactor]: gl.ONE_MINUS_DST_COLOR,
		[OneMinusDstAlphaFactor]: gl.ONE_MINUS_DST_ALPHA
	};

	function setBlending(blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha) {
		if (blending === NoBlending) {
			if (currentBlendingEnabled === true) {
				disable(gl.BLEND);
				currentBlendingEnabled = false;
			}

			return;
		}

		if (currentBlendingEnabled === false) {
			enable(gl.BLEND);
			currentBlendingEnabled = true;
		}

		if (blending !== CustomBlending) {
			if (blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha) {
				if (currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation) {
					gl.blendEquation(gl.FUNC_ADD);
					currentBlendEquation = AddEquation;
					currentBlendEquationAlpha = AddEquation;
				}

				if (premultipliedAlpha) {
					switch (blending) {
						case NormalBlending:
							gl.blendFuncSeparate(gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
							break;

						case AdditiveBlending:
							gl.blendFunc(gl.ONE, gl.ONE);
							break;

						case SubtractiveBlending:
							gl.blendFuncSeparate(gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ZERO, gl.ONE);
							break;

						case MultiplyBlending:
							gl.blendFuncSeparate(gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA);
							break;

						default:
							console.error('THREE.WebGLState: Invalid blending: ', blending);
							break;
					}
				} else {
					switch (blending) {
						case NormalBlending:
							gl.blendFuncSeparate(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
							break;

						case AdditiveBlending:
							gl.blendFunc(gl.SRC_ALPHA, gl.ONE);
							break;

						case SubtractiveBlending:
							gl.blendFuncSeparate(gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ZERO, gl.ONE);
							break;

						case MultiplyBlending:
							gl.blendFunc(gl.ZERO, gl.SRC_COLOR);
							break;

						default:
							console.error('THREE.WebGLState: Invalid blending: ', blending);
							break;
					}
				}

				currentBlendSrc = null;
				currentBlendDst = null;
				currentBlendSrcAlpha = null;
				currentBlendDstAlpha = null;
				currentBlending = blending;
				currentPremultipledAlpha = premultipliedAlpha;
			}

			return;
		} // custom blending


		blendEquationAlpha = blendEquationAlpha || blendEquation;
		blendSrcAlpha = blendSrcAlpha || blendSrc;
		blendDstAlpha = blendDstAlpha || blendDst;

		if (blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha) {
			gl.blendEquationSeparate(equationToGL[blendEquation], equationToGL[blendEquationAlpha]);
			currentBlendEquation = blendEquation;
			currentBlendEquationAlpha = blendEquationAlpha;
		}

		if (blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha) {
			gl.blendFuncSeparate(factorToGL[blendSrc], factorToGL[blendDst], factorToGL[blendSrcAlpha], factorToGL[blendDstAlpha]);
			currentBlendSrc = blendSrc;
			currentBlendDst = blendDst;
			currentBlendSrcAlpha = blendSrcAlpha;
			currentBlendDstAlpha = blendDstAlpha;
		}

		currentBlending = blending;
		currentPremultipledAlpha = null;
	}

	function setMaterial(material, frontFaceCW) {
		material.side === DoubleSide ? disable(gl.CULL_FACE) : enable(gl.CULL_FACE);
		let flipSided = material.side === BackSide;
		if (frontFaceCW) flipSided = !flipSided;
		setFlipSided(flipSided);
		material.blending === NormalBlending && material.transparent === false ? setBlending(NoBlending) : setBlending(material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha);
		depthBuffer.setFunc(material.depthFunc);
		depthBuffer.setTest(material.depthTest);
		depthBuffer.setMask(material.depthWrite);
		colorBuffer.setMask(material.colorWrite);
		const stencilWrite = material.stencilWrite;
		stencilBuffer.setTest(stencilWrite);

		if (stencilWrite) {
			stencilBuffer.setMask(material.stencilWriteMask);
			stencilBuffer.setFunc(material.stencilFunc, material.stencilRef, material.stencilFuncMask);
			stencilBuffer.setOp(material.stencilFail, material.stencilZFail, material.stencilZPass);
		}

		setPolygonOffset(material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits);
		material.alphaToCoverage === true ? enable(gl.SAMPLE_ALPHA_TO_COVERAGE) : disable(gl.SAMPLE_ALPHA_TO_COVERAGE);
	} //


	function setFlipSided(flipSided) {
		if (currentFlipSided !== flipSided) {
			if (flipSided) {
				gl.frontFace(gl.CW);
			} else {
				gl.frontFace(gl.CCW);
			}

			currentFlipSided = flipSided;
		}
	}

	function setCullFace(cullFace) {
		if (cullFace !== CullFaceNone) {
			enable(gl.CULL_FACE);

			if (cullFace !== currentCullFace) {
				if (cullFace === CullFaceBack) {
					gl.cullFace(gl.BACK);
				} else if (cullFace === CullFaceFront) {
					gl.cullFace(gl.FRONT);
				} else {
					gl.cullFace(gl.FRONT_AND_BACK);
				}
			}
		} else {
			disable(gl.CULL_FACE);
		}

		currentCullFace = cullFace;
	}

	function setLineWidth(width) {
		if (width !== currentLineWidth) {
			if (lineWidthAvailable) gl.lineWidth(width);
			currentLineWidth = width;
		}
	}

	function setPolygonOffset(polygonOffset, factor, units) {
		if (polygonOffset) {
			enable(gl.POLYGON_OFFSET_FILL);

			if (currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units) {
				gl.polygonOffset(factor, units);
				currentPolygonOffsetFactor = factor;
				currentPolygonOffsetUnits = units;
			}
		} else {
			disable(gl.POLYGON_OFFSET_FILL);
		}
	}

	function setScissorTest(scissorTest) {
		if (scissorTest) {
			enable(gl.SCISSOR_TEST);
		} else {
			disable(gl.SCISSOR_TEST);
		}
	} // texture


	function activeTexture(webglSlot) {
		if (webglSlot === undefined) webglSlot = gl.TEXTURE0 + maxTextures - 1;

		if (currentTextureSlot !== webglSlot) {
			gl.activeTexture(webglSlot);
			currentTextureSlot = webglSlot;
		}
	}

	function bindTexture(webglType, webglTexture) {
		if (currentTextureSlot === null) {
			activeTexture();
		}

		let boundTexture = currentBoundTextures[currentTextureSlot];

		if (boundTexture === undefined) {
			boundTexture = {
				type: undefined,
				texture: undefined
			};
			currentBoundTextures[currentTextureSlot] = boundTexture;
		}

		if (boundTexture.type !== webglType || boundTexture.texture !== webglTexture) {
			gl.bindTexture(webglType, webglTexture || emptyTextures[webglType]);
			boundTexture.type = webglType;
			boundTexture.texture = webglTexture;
		}
	}

	function unbindTexture() {
		const boundTexture = currentBoundTextures[currentTextureSlot];

		if (boundTexture !== undefined && boundTexture.type !== undefined) {
			gl.bindTexture(boundTexture.type, null);
			boundTexture.type = undefined;
			boundTexture.texture = undefined;
		}
	}

	function compressedTexImage2D() {
		try {
			gl.compressedTexImage2D.apply(gl, arguments);
		} catch (error) {
			console.error('THREE.WebGLState:', error);
		}
	}

	function texSubImage2D() {
		try {
			gl.texSubImage2D.apply(gl, arguments);
		} catch (error) {
			console.error('THREE.WebGLState:', error);
		}
	}

	function texSubImage3D() {
		try {
			gl.texSubImage3D.apply(gl, arguments);
		} catch (error) {
			console.error('THREE.WebGLState:', error);
		}
	}

	function compressedTexSubImage2D() {
		try {
			gl.compressedTexSubImage2D.apply(gl, arguments);
		} catch (error) {
			console.error('THREE.WebGLState:', error);
		}
	}

	function texStorage2D() {
		try {
			gl.texStorage2D.apply(gl, arguments);
		} catch (error) {
			console.error('THREE.WebGLState:', error);
		}
	}

	function texStorage3D() {
		try {
			gl.texStorage3D.apply(gl, arguments);
		} catch (error) {
			console.error('THREE.WebGLState:', error);
		}
	}

	function texImage2D() {
		try {
			gl.texImage2D.apply(gl, arguments);
		} catch (error) {
			console.error('THREE.WebGLState:', error);
		}
	}

	function texImage3D() {
		try {
			gl.texImage3D.apply(gl, arguments);
		} catch (error) {
			console.error('THREE.WebGLState:', error);
		}
	} //


	function scissor(scissor) {
		if (currentScissor.equals(scissor) === false) {
			gl.scissor(scissor.x, scissor.y, scissor.z, scissor.w);
			currentScissor.copy(scissor);
		}
	}

	function viewport(viewport) {
		if (currentViewport.equals(viewport) === false) {
			gl.viewport(viewport.x, viewport.y, viewport.z, viewport.w);
			currentViewport.copy(viewport);
		}
	} //


	function reset() {
		// reset state
		gl.disable(gl.BLEND);
		gl.disable(gl.CULL_FACE);
		gl.disable(gl.DEPTH_TEST);
		gl.disable(gl.POLYGON_OFFSET_FILL);
		gl.disable(gl.SCISSOR_TEST);
		gl.disable(gl.STENCIL_TEST);
		gl.disable(gl.SAMPLE_ALPHA_TO_COVERAGE);
		gl.blendEquation(gl.FUNC_ADD);
		gl.blendFunc(gl.ONE, gl.ZERO);
		gl.blendFuncSeparate(gl.ONE, gl.ZERO, gl.ONE, gl.ZERO);
		gl.colorMask(true, true, true, true);
		gl.clearColor(0, 0, 0, 0);
		gl.depthMask(true);
		gl.depthFunc(gl.LESS);
		gl.clearDepth(1);
		gl.stencilMask(0xffffffff);
		gl.stencilFunc(gl.ALWAYS, 0, 0xffffffff);
		gl.stencilOp(gl.KEEP, gl.KEEP, gl.KEEP);
		gl.clearStencil(0);
		gl.cullFace(gl.BACK);
		gl.frontFace(gl.CCW);
		gl.polygonOffset(0, 0);
		gl.activeTexture(gl.TEXTURE0);
		gl.bindFramebuffer(gl.FRAMEBUFFER, null);

		if (isWebGL2 === true) {
			gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, null);
			gl.bindFramebuffer(gl.READ_FRAMEBUFFER, null);
		}

		gl.useProgram(null);
		gl.lineWidth(1);
		gl.scissor(0, 0, gl.canvas.width, gl.canvas.height);
		gl.viewport(0, 0, gl.canvas.width, gl.canvas.height); // reset internals

		enabledCapabilities = {};
		currentTextureSlot = null;
		currentBoundTextures = {};
		currentBoundFramebuffers = {};
		currentDrawbuffers = new WeakMap();
		defaultDrawbuffers = [];
		currentProgram = null;
		currentBlendingEnabled = false;
		currentBlending = null;
		currentBlendEquation = null;
		currentBlendSrc = null;
		currentBlendDst = null;
		currentBlendEquationAlpha = null;
		currentBlendSrcAlpha = null;
		currentBlendDstAlpha = null;
		currentPremultipledAlpha = false;
		currentFlipSided = null;
		currentCullFace = null;
		currentLineWidth = null;
		currentPolygonOffsetFactor = null;
		currentPolygonOffsetUnits = null;
		currentScissor.set(0, 0, gl.canvas.width, gl.canvas.height);
		currentViewport.set(0, 0, gl.canvas.width, gl.canvas.height);
		colorBuffer.reset();
		depthBuffer.reset();
		stencilBuffer.reset();
	}

	return {
		buffers: {
			color: colorBuffer,
			depth: depthBuffer,
			stencil: stencilBuffer
		},
		enable: enable,
		disable: disable,
		bindFramebuffer: bindFramebuffer,
		drawBuffers: drawBuffers,
		useProgram: useProgram,
		setBlending: setBlending,
		setMaterial: setMaterial,
		setFlipSided: setFlipSided,
		setCullFace: setCullFace,
		setLineWidth: setLineWidth,
		setPolygonOffset: setPolygonOffset,
		setScissorTest: setScissorTest,
		activeTexture: activeTexture,
		bindTexture: bindTexture,
		unbindTexture: unbindTexture,
		compressedTexImage2D: compressedTexImage2D,
		texImage2D: texImage2D,
		texImage3D: texImage3D,
		texStorage2D: texStorage2D,
		texStorage3D: texStorage3D,
		texSubImage2D: texSubImage2D,
		texSubImage3D: texSubImage3D,
		compressedTexSubImage2D: compressedTexSubImage2D,
		scissor: scissor,
		viewport: viewport,
		reset: reset
	};
}

function WebGLTextures(_gl, extensions, state, properties, capabilities, utils, info) {
	const isWebGL2 = capabilities.isWebGL2;
	const maxTextures = capabilities.maxTextures;
	const maxCubemapSize = capabilities.maxCubemapSize;
	const maxTextureSize = capabilities.maxTextureSize;
	const maxSamples = capabilities.maxSamples;
	const hasMultisampledRenderToTexture = extensions.has('WEBGL_multisampled_render_to_texture');
	const MultisampledRenderToTextureExtension = hasMultisampledRenderToTexture ? extensions.get('WEBGL_multisampled_render_to_texture') : undefined;

	const _videoTextures = new WeakMap();

	let _canvas; // cordova iOS (as of 5.0) still uses UIWebView, which provides OffscreenCanvas,
	// also OffscreenCanvas.getContext("webgl"), but not OffscreenCanvas.getContext("2d")!
	// Some implementations may only implement OffscreenCanvas partially (e.g. lacking 2d).


	let useOffscreenCanvas = false;

	try {
		useOffscreenCanvas = typeof OffscreenCanvas !== 'undefined' && new OffscreenCanvas(1, 1).getContext('2d') !== null;
	} catch (err) {// Ignore any errors
	}

	function createCanvas(width, height) {
		// Use OffscreenCanvas when available. Specially needed in web workers
		return useOffscreenCanvas ? new OffscreenCanvas(width, height) : createElementNS('canvas');
	}

	function resizeImage(image, needsPowerOfTwo, needsNewCanvas, maxSize) {
		let scale = 1; // handle case if texture exceeds max size

		if (image.width > maxSize || image.height > maxSize) {
			scale = maxSize / Math.max(image.width, image.height);
		} // only perform resize if necessary


		if (scale < 1 || needsPowerOfTwo === true) {
			// only perform resize for certain image types
			if (typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement || typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap) {
				const floor = needsPowerOfTwo ? floorPowerOfTwo : Math.floor;
				const width = floor(scale * image.width);
				const height = floor(scale * image.height);
				if (_canvas === undefined) _canvas = createCanvas(width, height); // cube textures can't reuse the same canvas

				const canvas = needsNewCanvas ? createCanvas(width, height) : _canvas;
				canvas.width = width;
				canvas.height = height;
				const context = canvas.getContext('2d');
				context.drawImage(image, 0, 0, width, height);
				console.warn('THREE.WebGLRenderer: Texture has been resized from (' + image.width + 'x' + image.height + ') to (' + width + 'x' + height + ').');
				return canvas;
			} else {
				if ('data' in image) {
					console.warn('THREE.WebGLRenderer: Image in DataTexture is too big (' + image.width + 'x' + image.height + ').');
				}

				return image;
			}
		}

		return image;
	}

	function isPowerOfTwo$1(image) {
		return isPowerOfTwo(image.width) && isPowerOfTwo(image.height);
	}

	function textureNeedsPowerOfTwo(texture) {
		if (isWebGL2) return false;
		return texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping || texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
	}

	function textureNeedsGenerateMipmaps(texture, supportsMips) {
		return texture.generateMipmaps && supportsMips && texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
	}

	function generateMipmap(target) {
		_gl.generateMipmap(target);
	}

	function getInternalFormat(internalFormatName, glFormat, glType, encoding, isVideoTexture = false) {
		if (isWebGL2 === false) return glFormat;

		if (internalFormatName !== null) {
			if (_gl[internalFormatName] !== undefined) return _gl[internalFormatName];
			console.warn('THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format \'' + internalFormatName + '\'');
		}

		let internalFormat = glFormat;

		if (glFormat === _gl.RED) {
			if (glType === _gl.FLOAT) internalFormat = _gl.R32F;
			if (glType === _gl.HALF_FLOAT) internalFormat = _gl.R16F;
			if (glType === _gl.UNSIGNED_BYTE) internalFormat = _gl.R8;
		}

		if (glFormat === _gl.RG) {
			if (glType === _gl.FLOAT) internalFormat = _gl.RG32F;
			if (glType === _gl.HALF_FLOAT) internalFormat = _gl.RG16F;
			if (glType === _gl.UNSIGNED_BYTE) internalFormat = _gl.RG8;
		}

		if (glFormat === _gl.RGBA) {
			if (glType === _gl.FLOAT) internalFormat = _gl.RGBA32F;
			if (glType === _gl.HALF_FLOAT) internalFormat = _gl.RGBA16F;
			if (glType === _gl.UNSIGNED_BYTE) internalFormat = encoding === sRGBEncoding && isVideoTexture === false ? _gl.SRGB8_ALPHA8 : _gl.RGBA8;
			if (glType === _gl.UNSIGNED_SHORT_4_4_4_4) internalFormat = _gl.RGBA4;
			if (glType === _gl.UNSIGNED_SHORT_5_5_5_1) internalFormat = _gl.RGB5_A1;
		}

		if (internalFormat === _gl.R16F || internalFormat === _gl.R32F || internalFormat === _gl.RG16F || internalFormat === _gl.RG32F || internalFormat === _gl.RGBA16F || internalFormat === _gl.RGBA32F) {
			extensions.get('EXT_color_buffer_float');
		}

		return internalFormat;
	}

	function getMipLevels(texture, image, supportsMips) {
		if (textureNeedsGenerateMipmaps(texture, supportsMips) === true || texture.isFramebufferTexture && texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter) {
			return Math.log2(Math.max(image.width, image.height)) + 1;
		} else if (texture.mipmaps !== undefined && texture.mipmaps.length > 0) {
			// user-defined mipmaps
			return texture.mipmaps.length;
		} else if (texture.isCompressedTexture && Array.isArray(texture.image)) {
			return image.mipmaps.length;
		} else {
			// texture without mipmaps (only base level)
			return 1;
		}
	} // Fallback filters for non-power-of-2 textures


	function filterFallback(f) {
		if (f === NearestFilter || f === NearestMipmapNearestFilter || f === NearestMipmapLinearFilter) {
			return _gl.NEAREST;
		}

		return _gl.LINEAR;
	} //


	function onTextureDispose(event) {
		const texture = event.target;
		texture.removeEventListener('dispose', onTextureDispose);
		deallocateTexture(texture);

		if (texture.isVideoTexture) {
			_videoTextures.delete(texture);
		}

		info.memory.textures--;
	}

	function onRenderTargetDispose(event) {
		const renderTarget = event.target;
		renderTarget.removeEventListener('dispose', onRenderTargetDispose);
		deallocateRenderTarget(renderTarget);
	} //


	function deallocateTexture(texture) {
		const textureProperties = properties.get(texture);
		if (textureProperties.__webglInit === undefined) return;

		_gl.deleteTexture(textureProperties.__webglTexture);

		properties.remove(texture);
	}

	function deallocateRenderTarget(renderTarget) {
		const texture = renderTarget.texture;
		const renderTargetProperties = properties.get(renderTarget);
		const textureProperties = properties.get(texture);
		if (!renderTarget) return;

		if (textureProperties.__webglTexture !== undefined) {
			_gl.deleteTexture(textureProperties.__webglTexture);

			info.memory.textures--;
		}

		if (renderTarget.depthTexture) {
			renderTarget.depthTexture.dispose();
		}

		if (renderTarget.isWebGLCubeRenderTarget) {
			for (let i = 0; i < 6; i++) {
				_gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer[i]);

				if (renderTargetProperties.__webglDepthbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer[i]);
			}
		} else {
			_gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer);

			if (renderTargetProperties.__webglDepthbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer);
			if (renderTargetProperties.__webglMultisampledFramebuffer) _gl.deleteFramebuffer(renderTargetProperties.__webglMultisampledFramebuffer);
			if (renderTargetProperties.__webglColorRenderbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglColorRenderbuffer);
			if (renderTargetProperties.__webglDepthRenderbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthRenderbuffer);
		}

		if (renderTarget.isWebGLMultipleRenderTargets) {
			for (let i = 0, il = texture.length; i < il; i++) {
				const attachmentProperties = properties.get(texture[i]);

				if (attachmentProperties.__webglTexture) {
					_gl.deleteTexture(attachmentProperties.__webglTexture);

					info.memory.textures--;
				}

				properties.remove(texture[i]);
			}
		}

		properties.remove(texture);
		properties.remove(renderTarget);
	} //


	let textureUnits = 0;

	function resetTextureUnits() {
		textureUnits = 0;
	}

	function allocateTextureUnit() {
		const textureUnit = textureUnits;

		if (textureUnit >= maxTextures) {
			console.warn('THREE.WebGLTextures: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + maxTextures);
		}

		textureUnits += 1;
		return textureUnit;
	} //


	function setTexture2D(texture, slot) {
		const textureProperties = properties.get(texture);
		if (texture.isVideoTexture) updateVideoTexture(texture);

		if (texture.version > 0 && textureProperties.__version !== texture.version) {
			const image = texture.image;

			if (image === undefined) {
				console.warn('THREE.WebGLRenderer: Texture marked for update but image is undefined');
			} else if (image.complete === false) {
				console.warn('THREE.WebGLRenderer: Texture marked for update but image is incomplete');
			} else {
				uploadTexture(textureProperties, texture, slot);
				return;
			}
		}

		state.activeTexture(_gl.TEXTURE0 + slot);
		state.bindTexture(_gl.TEXTURE_2D, textureProperties.__webglTexture);
	}

	function setTexture2DArray(texture, slot) {
		const textureProperties = properties.get(texture);

		if (texture.version > 0 && textureProperties.__version !== texture.version) {
			uploadTexture(textureProperties, texture, slot);
			return;
		}

		state.activeTexture(_gl.TEXTURE0 + slot);
		state.bindTexture(_gl.TEXTURE_2D_ARRAY, textureProperties.__webglTexture);
	}

	function setTexture3D(texture, slot) {
		const textureProperties = properties.get(texture);

		if (texture.version > 0 && textureProperties.__version !== texture.version) {
			uploadTexture(textureProperties, texture, slot);
			return;
		}

		state.activeTexture(_gl.TEXTURE0 + slot);
		state.bindTexture(_gl.TEXTURE_3D, textureProperties.__webglTexture);
	}

	function setTextureCube(texture, slot) {
		const textureProperties = properties.get(texture);

		if (texture.version > 0 && textureProperties.__version !== texture.version) {
			uploadCubeTexture(textureProperties, texture, slot);
			return;
		}

		state.activeTexture(_gl.TEXTURE0 + slot);
		state.bindTexture(_gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture);
	}

	const wrappingToGL = {
		[RepeatWrapping]: _gl.REPEAT,
		[ClampToEdgeWrapping]: _gl.CLAMP_TO_EDGE,
		[MirroredRepeatWrapping]: _gl.MIRRORED_REPEAT
	};
	const filterToGL = {
		[NearestFilter]: _gl.NEAREST,
		[NearestMipmapNearestFilter]: _gl.NEAREST_MIPMAP_NEAREST,
		[NearestMipmapLinearFilter]: _gl.NEAREST_MIPMAP_LINEAR,
		[LinearFilter]: _gl.LINEAR,
		[LinearMipmapNearestFilter]: _gl.LINEAR_MIPMAP_NEAREST,
		[LinearMipmapLinearFilter]: _gl.LINEAR_MIPMAP_LINEAR
	};

	function setTextureParameters(textureType, texture, supportsMips) {
		if (supportsMips) {
			_gl.texParameteri(textureType, _gl.TEXTURE_WRAP_S, wrappingToGL[texture.wrapS]);

			_gl.texParameteri(textureType, _gl.TEXTURE_WRAP_T, wrappingToGL[texture.wrapT]);

			if (textureType === _gl.TEXTURE_3D || textureType === _gl.TEXTURE_2D_ARRAY) {
				_gl.texParameteri(textureType, _gl.TEXTURE_WRAP_R, wrappingToGL[texture.wrapR]);
			}

			_gl.texParameteri(textureType, _gl.TEXTURE_MAG_FILTER, filterToGL[texture.magFilter]);

			_gl.texParameteri(textureType, _gl.TEXTURE_MIN_FILTER, filterToGL[texture.minFilter]);
		} else {
			_gl.texParameteri(textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE);

			_gl.texParameteri(textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE);

			if (textureType === _gl.TEXTURE_3D || textureType === _gl.TEXTURE_2D_ARRAY) {
				_gl.texParameteri(textureType, _gl.TEXTURE_WRAP_R, _gl.CLAMP_TO_EDGE);
			}

			if (texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping) {
				console.warn('THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.');
			}

			_gl.texParameteri(textureType, _gl.TEXTURE_MAG_FILTER, filterFallback(texture.magFilter));

			_gl.texParameteri(textureType, _gl.TEXTURE_MIN_FILTER, filterFallback(texture.minFilter));

			if (texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter) {
				console.warn('THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.');
			}
		}

		if (extensions.has('EXT_texture_filter_anisotropic') === true) {
			const extension = extensions.get('EXT_texture_filter_anisotropic');
			if (texture.type === FloatType && extensions.has('OES_texture_float_linear') === false) return; // verify extension for WebGL 1 and WebGL 2

			if (isWebGL2 === false && texture.type === HalfFloatType && extensions.has('OES_texture_half_float_linear') === false) return; // verify extension for WebGL 1 only

			if (texture.anisotropy > 1 || properties.get(texture).__currentAnisotropy) {
				_gl.texParameterf(textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min(texture.anisotropy, capabilities.getMaxAnisotropy()));

				properties.get(texture).__currentAnisotropy = texture.anisotropy;
			}
		}
	}

	function initTexture(textureProperties, texture) {
		if (textureProperties.__webglInit === undefined) {
			textureProperties.__webglInit = true;
			texture.addEventListener('dispose', onTextureDispose);
			textureProperties.__webglTexture = _gl.createTexture();
			info.memory.textures++;
		}
	}

	function uploadTexture(textureProperties, texture, slot) {
		let textureType = _gl.TEXTURE_2D;
		if (texture.isDataTexture2DArray) textureType = _gl.TEXTURE_2D_ARRAY;
		if (texture.isDataTexture3D) textureType = _gl.TEXTURE_3D;
		initTexture(textureProperties, texture);
		state.activeTexture(_gl.TEXTURE0 + slot);
		state.bindTexture(textureType, textureProperties.__webglTexture);

		_gl.pixelStorei(_gl.UNPACK_FLIP_Y_WEBGL, texture.flipY);

		_gl.pixelStorei(_gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha);

		_gl.pixelStorei(_gl.UNPACK_ALIGNMENT, texture.unpackAlignment);

		_gl.pixelStorei(_gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, _gl.NONE);

		const needsPowerOfTwo = textureNeedsPowerOfTwo(texture) && isPowerOfTwo$1(texture.image) === false;
		let image = resizeImage(texture.image, needsPowerOfTwo, false, maxTextureSize);
		image = verifyColorSpace(texture, image);
		const supportsMips = isPowerOfTwo$1(image) || isWebGL2,
					glFormat = utils.convert(texture.format, texture.encoding);
		let glType = utils.convert(texture.type),
				glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType, texture.encoding, texture.isVideoTexture);
		setTextureParameters(textureType, texture, supportsMips);
		let mipmap;
		const mipmaps = texture.mipmaps;
		const useTexStorage = isWebGL2 && texture.isVideoTexture !== true;
		const allocateMemory = textureProperties.__version === undefined;
		const levels = getMipLevels(texture, image, supportsMips);

		if (texture.isDepthTexture) {
			// populate depth texture with dummy data
			glInternalFormat = _gl.DEPTH_COMPONENT;

			if (isWebGL2) {
				if (texture.type === FloatType) {
					glInternalFormat = _gl.DEPTH_COMPONENT32F;
				} else if (texture.type === UnsignedIntType) {
					glInternalFormat = _gl.DEPTH_COMPONENT24;
				} else if (texture.type === UnsignedInt248Type) {
					glInternalFormat = _gl.DEPTH24_STENCIL8;
				} else {
					glInternalFormat = _gl.DEPTH_COMPONENT16; // WebGL2 requires sized internalformat for glTexImage2D
				}
			} else {
				if (texture.type === FloatType) {
					console.error('WebGLRenderer: Floating point depth texture requires WebGL2.');
				}
			} // validation checks for WebGL 1


			if (texture.format === DepthFormat && glInternalFormat === _gl.DEPTH_COMPONENT) {
				// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
				// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
				if (texture.type !== UnsignedShortType && texture.type !== UnsignedIntType) {
					console.warn('THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.');
					texture.type = UnsignedShortType;
					glType = utils.convert(texture.type);
				}
			}

			if (texture.format === DepthStencilFormat && glInternalFormat === _gl.DEPTH_COMPONENT) {
				// Depth stencil textures need the DEPTH_STENCIL internal format
				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
				glInternalFormat = _gl.DEPTH_STENCIL; // The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
				// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)

				if (texture.type !== UnsignedInt248Type) {
					console.warn('THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.');
					texture.type = UnsignedInt248Type;
					glType = utils.convert(texture.type);
				}
			} //


			if (useTexStorage && allocateMemory) {
				state.texStorage2D(_gl.TEXTURE_2D, 1, glInternalFormat, image.width, image.height);
			} else {
				state.texImage2D(_gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null);
			}
		} else if (texture.isDataTexture) {
			// use manually created mipmaps if available
			// if there are no manual mipmaps
			// set 0 level mipmap and then use GL to generate other mipmap levels
			if (mipmaps.length > 0 && supportsMips) {
				if (useTexStorage && allocateMemory) {
					state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, mipmaps[0].width, mipmaps[0].height);
				}

				for (let i = 0, il = mipmaps.length; i < il; i++) {
					mipmap = mipmaps[i];

					if (useTexStorage) {
						state.texSubImage2D(_gl.TEXTURE_2D, 0, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data);
					} else {
						state.texImage2D(_gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
					}
				}

				texture.generateMipmaps = false;
			} else {
				if (useTexStorage) {
					if (allocateMemory) {
						state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, image.width, image.height);
					}

					state.texSubImage2D(_gl.TEXTURE_2D, 0, 0, 0, image.width, image.height, glFormat, glType, image.data);
				} else {
					state.texImage2D(_gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data);
				}
			}
		} else if (texture.isCompressedTexture) {
			if (useTexStorage && allocateMemory) {
				state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, mipmaps[0].width, mipmaps[0].height);
			}

			for (let i = 0, il = mipmaps.length; i < il; i++) {
				mipmap = mipmaps[i];

				if (texture.format !== RGBAFormat) {
					if (glFormat !== null) {
						if (useTexStorage) {
							state.compressedTexSubImage2D(_gl.TEXTURE_2D, i, 0, 0, mipmap.width, mipmap.height, glFormat, mipmap.data);
						} else {
							state.compressedTexImage2D(_gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data);
						}
					} else {
						console.warn('THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()');
					}
				} else {
					if (useTexStorage) {
						state.texSubImage2D(_gl.TEXTURE_2D, i, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data);
					} else {
						state.texImage2D(_gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
					}
				}
			}
		} else if (texture.isDataTexture2DArray) {
			if (useTexStorage) {
				if (allocateMemory) {
					state.texStorage3D(_gl.TEXTURE_2D_ARRAY, levels, glInternalFormat, image.width, image.height, image.depth);
				}

				state.texSubImage3D(_gl.TEXTURE_2D_ARRAY, 0, 0, 0, 0, image.width, image.height, image.depth, glFormat, glType, image.data);
			} else {
				state.texImage3D(_gl.TEXTURE_2D_ARRAY, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data);
			}
		} else if (texture.isDataTexture3D) {
			if (useTexStorage) {
				if (allocateMemory) {
					state.texStorage3D(_gl.TEXTURE_3D, levels, glInternalFormat, image.width, image.height, image.depth);
				}

				state.texSubImage3D(_gl.TEXTURE_3D, 0, 0, 0, 0, image.width, image.height, image.depth, glFormat, glType, image.data);
			} else {
				state.texImage3D(_gl.TEXTURE_3D, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data);
			}
		} else if (texture.isFramebufferTexture) {
			if (useTexStorage && allocateMemory) {
				state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, image.width, image.height);
			} else {
				state.texImage2D(_gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null);
			}
		} else {
			// regular Texture (image, video, canvas)
			// use manually created mipmaps if available
			// if there are no manual mipmaps
			// set 0 level mipmap and then use GL to generate other mipmap levels
			if (mipmaps.length > 0 && supportsMips) {
				if (useTexStorage && allocateMemory) {
					state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, mipmaps[0].width, mipmaps[0].height);
				}

				for (let i = 0, il = mipmaps.length; i < il; i++) {
					mipmap = mipmaps[i];

					if (useTexStorage) {
						state.texSubImage2D(_gl.TEXTURE_2D, i, 0, 0, glFormat, glType, mipmap);
					} else {
						state.texImage2D(_gl.TEXTURE_2D, i, glInternalFormat, glFormat, glType, mipmap);
					}
				}

				texture.generateMipmaps = false;
			} else {
				if (useTexStorage) {
					if (allocateMemory) {
						state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, image.width, image.height);
					}

					state.texSubImage2D(_gl.TEXTURE_2D, 0, 0, 0, glFormat, glType, image);
				} else {
					state.texImage2D(_gl.TEXTURE_2D, 0, glInternalFormat, glFormat, glType, image);
				}
			}
		}

		if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
			generateMipmap(textureType);
		}

		textureProperties.__version = texture.version;
		if (texture.onUpdate) texture.onUpdate(texture);
	}

	function uploadCubeTexture(textureProperties, texture, slot) {
		if (texture.image.length !== 6) return;
		initTexture(textureProperties, texture);
		state.activeTexture(_gl.TEXTURE0 + slot);
		state.bindTexture(_gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture);

		_gl.pixelStorei(_gl.UNPACK_FLIP_Y_WEBGL, texture.flipY);

		_gl.pixelStorei(_gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha);

		_gl.pixelStorei(_gl.UNPACK_ALIGNMENT, texture.unpackAlignment);

		_gl.pixelStorei(_gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, _gl.NONE);

		const isCompressed = texture && (texture.isCompressedTexture || texture.image[0].isCompressedTexture);
		const isDataTexture = texture.image[0] && texture.image[0].isDataTexture;
		const cubeImage = [];

		for (let i = 0; i < 6; i++) {
			if (!isCompressed && !isDataTexture) {
				cubeImage[i] = resizeImage(texture.image[i], false, true, maxCubemapSize);
			} else {
				cubeImage[i] = isDataTexture ? texture.image[i].image : texture.image[i];
			}

			cubeImage[i] = verifyColorSpace(texture, cubeImage[i]);
		}

		const image = cubeImage[0],
					supportsMips = isPowerOfTwo$1(image) || isWebGL2,
					glFormat = utils.convert(texture.format, texture.encoding),
					glType = utils.convert(texture.type),
					glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType, texture.encoding);
		const useTexStorage = isWebGL2 && texture.isVideoTexture !== true;
		const allocateMemory = textureProperties.__version === undefined;
		let levels = getMipLevels(texture, image, supportsMips);
		setTextureParameters(_gl.TEXTURE_CUBE_MAP, texture, supportsMips);
		let mipmaps;

		if (isCompressed) {
			if (useTexStorage && allocateMemory) {
				state.texStorage2D(_gl.TEXTURE_CUBE_MAP, levels, glInternalFormat, image.width, image.height);
			}

			for (let i = 0; i < 6; i++) {
				mipmaps = cubeImage[i].mipmaps;

				for (let j = 0; j < mipmaps.length; j++) {
					const mipmap = mipmaps[j];

					if (texture.format !== RGBAFormat) {
						if (glFormat !== null) {
							if (useTexStorage) {
								state.compressedTexSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, 0, 0, mipmap.width, mipmap.height, glFormat, mipmap.data);
							} else {
								state.compressedTexImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data);
							}
						} else {
							console.warn('THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()');
						}
					} else {
						if (useTexStorage) {
							state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data);
						} else {
							state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
						}
					}
				}
			}
		} else {
			mipmaps = texture.mipmaps;

			if (useTexStorage && allocateMemory) {
				// TODO: Uniformly handle mipmap definitions
				// Normal textures and compressed cube textures define base level + mips with their mipmap array
				// Uncompressed cube textures use their mipmap array only for mips (no base level)
				if (mipmaps.length > 0) levels++;
				state.texStorage2D(_gl.TEXTURE_CUBE_MAP, levels, glInternalFormat, cubeImage[0].width, cubeImage[0].height);
			}

			for (let i = 0; i < 6; i++) {
				if (isDataTexture) {
					if (useTexStorage) {
						state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, 0, 0, cubeImage[i].width, cubeImage[i].height, glFormat, glType, cubeImage[i].data);
					} else {
						state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, cubeImage[i].width, cubeImage[i].height, 0, glFormat, glType, cubeImage[i].data);
					}

					for (let j = 0; j < mipmaps.length; j++) {
						const mipmap = mipmaps[j];
						const mipmapImage = mipmap.image[i].image;

						if (useTexStorage) {
							state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j + 1, 0, 0, mipmapImage.width, mipmapImage.height, glFormat, glType, mipmapImage.data);
						} else {
							state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j + 1, glInternalFormat, mipmapImage.width, mipmapImage.height, 0, glFormat, glType, mipmapImage.data);
						}
					}
				} else {
					if (useTexStorage) {
						state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, 0, 0, glFormat, glType, cubeImage[i]);
					} else {
						state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, glFormat, glType, cubeImage[i]);
					}

					for (let j = 0; j < mipmaps.length; j++) {
						const mipmap = mipmaps[j];

						if (useTexStorage) {
							state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j + 1, 0, 0, glFormat, glType, mipmap.image[i]);
						} else {
							state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j + 1, glInternalFormat, glFormat, glType, mipmap.image[i]);
						}
					}
				}
			}
		}

		if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
			// We assume images for cube map have the same size.
			generateMipmap(_gl.TEXTURE_CUBE_MAP);
		}

		textureProperties.__version = texture.version;
		if (texture.onUpdate) texture.onUpdate(texture);
	} // Render targets
	// Setup storage for target texture and bind it to correct framebuffer


	function setupFrameBufferTexture(framebuffer, renderTarget, texture, attachment, textureTarget) {
		const glFormat = utils.convert(texture.format, texture.encoding);
		const glType = utils.convert(texture.type);
		const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType, texture.encoding);
		const renderTargetProperties = properties.get(renderTarget);

		if (!renderTargetProperties.__hasExternalTextures) {
			if (textureTarget === _gl.TEXTURE_3D || textureTarget === _gl.TEXTURE_2D_ARRAY) {
				state.texImage3D(textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, renderTarget.depth, 0, glFormat, glType, null);
			} else {
				state.texImage2D(textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null);
			}
		}

		state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);

		if (renderTarget.useRenderToTexture) {
			MultisampledRenderToTextureExtension.framebufferTexture2DMultisampleEXT(_gl.FRAMEBUFFER, attachment, textureTarget, properties.get(texture).__webglTexture, 0, getRenderTargetSamples(renderTarget));
		} else {
			_gl.framebufferTexture2D(_gl.FRAMEBUFFER, attachment, textureTarget, properties.get(texture).__webglTexture, 0);
		}

		state.bindFramebuffer(_gl.FRAMEBUFFER, null);
	} // Setup storage for internal depth/stencil buffers and bind to correct framebuffer


	function setupRenderBufferStorage(renderbuffer, renderTarget, isMultisample) {
		_gl.bindRenderbuffer(_gl.RENDERBUFFER, renderbuffer);

		if (renderTarget.depthBuffer && !renderTarget.stencilBuffer) {
			let glInternalFormat = _gl.DEPTH_COMPONENT16;

			if (isMultisample || renderTarget.useRenderToTexture) {
				const depthTexture = renderTarget.depthTexture;

				if (depthTexture && depthTexture.isDepthTexture) {
					if (depthTexture.type === FloatType) {
						glInternalFormat = _gl.DEPTH_COMPONENT32F;
					} else if (depthTexture.type === UnsignedIntType) {
						glInternalFormat = _gl.DEPTH_COMPONENT24;
					}
				}

				const samples = getRenderTargetSamples(renderTarget);

				if (renderTarget.useRenderToTexture) {
					MultisampledRenderToTextureExtension.renderbufferStorageMultisampleEXT(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);
				} else {
					_gl.renderbufferStorageMultisample(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);
				}
			} else {
				_gl.renderbufferStorage(_gl.RENDERBUFFER, glInternalFormat, renderTarget.width, renderTarget.height);
			}

			_gl.framebufferRenderbuffer(_gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer);
		} else if (renderTarget.depthBuffer && renderTarget.stencilBuffer) {
			const samples = getRenderTargetSamples(renderTarget);

			if (isMultisample && renderTarget.useRenderbuffer) {
				_gl.renderbufferStorageMultisample(_gl.RENDERBUFFER, samples, _gl.DEPTH24_STENCIL8, renderTarget.width, renderTarget.height);
			} else if (renderTarget.useRenderToTexture) {
				MultisampledRenderToTextureExtension.renderbufferStorageMultisampleEXT(_gl.RENDERBUFFER, samples, _gl.DEPTH24_STENCIL8, renderTarget.width, renderTarget.height);
			} else {
				_gl.renderbufferStorage(_gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height);
			}

			_gl.framebufferRenderbuffer(_gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer);
		} else {
			// Use the first texture for MRT so far
			const texture = renderTarget.isWebGLMultipleRenderTargets === true ? renderTarget.texture[0] : renderTarget.texture;
			const glFormat = utils.convert(texture.format, texture.encoding);
			const glType = utils.convert(texture.type);
			const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType, texture.encoding);
			const samples = getRenderTargetSamples(renderTarget);

			if (isMultisample && renderTarget.useRenderbuffer) {
				_gl.renderbufferStorageMultisample(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);
			} else if (renderTarget.useRenderToTexture) {
				MultisampledRenderToTextureExtension.renderbufferStorageMultisampleEXT(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);
			} else {
				_gl.renderbufferStorage(_gl.RENDERBUFFER, glInternalFormat, renderTarget.width, renderTarget.height);
			}
		}

		_gl.bindRenderbuffer(_gl.RENDERBUFFER, null);
	} // Setup resources for a Depth Texture for a FBO (needs an extension)


	function setupDepthTexture(framebuffer, renderTarget) {
		const isCube = renderTarget && renderTarget.isWebGLCubeRenderTarget;
		if (isCube) throw new Error('Depth Texture with cube render targets is not supported');
		state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);

		if (!(renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture)) {
			throw new Error('renderTarget.depthTexture must be an instance of THREE.DepthTexture');
		} // upload an empty depth texture with framebuffer size


		if (!properties.get(renderTarget.depthTexture).__webglTexture || renderTarget.depthTexture.image.width !== renderTarget.width || renderTarget.depthTexture.image.height !== renderTarget.height) {
			renderTarget.depthTexture.image.width = renderTarget.width;
			renderTarget.depthTexture.image.height = renderTarget.height;
			renderTarget.depthTexture.needsUpdate = true;
		}

		setTexture2D(renderTarget.depthTexture, 0);

		const webglDepthTexture = properties.get(renderTarget.depthTexture).__webglTexture;

		const samples = getRenderTargetSamples(renderTarget);

		if (renderTarget.depthTexture.format === DepthFormat) {
			if (renderTarget.useRenderToTexture) {
				MultisampledRenderToTextureExtension.framebufferTexture2DMultisampleEXT(_gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0, samples);
			} else {
				_gl.framebufferTexture2D(_gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0);
			}
		} else if (renderTarget.depthTexture.format === DepthStencilFormat) {
			if (renderTarget.useRenderToTexture) {
				MultisampledRenderToTextureExtension.framebufferTexture2DMultisampleEXT(_gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0, samples);
			} else {
				_gl.framebufferTexture2D(_gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0);
			}
		} else {
			throw new Error('Unknown depthTexture format');
		}
	} // Setup GL resources for a non-texture depth buffer


	function setupDepthRenderbuffer(renderTarget) {
		const renderTargetProperties = properties.get(renderTarget);
		const isCube = renderTarget.isWebGLCubeRenderTarget === true;

		if (renderTarget.depthTexture && !renderTargetProperties.__autoAllocateDepthBuffer) {
			if (isCube) throw new Error('target.depthTexture not supported in Cube render targets');
			setupDepthTexture(renderTargetProperties.__webglFramebuffer, renderTarget);
		} else {
			if (isCube) {
				renderTargetProperties.__webglDepthbuffer = [];

				for (let i = 0; i < 6; i++) {
					state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[i]);
					renderTargetProperties.__webglDepthbuffer[i] = _gl.createRenderbuffer();
					setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer[i], renderTarget, false);
				}
			} else {
				state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer);
				renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
				setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer, renderTarget, false);
			}
		}

		state.bindFramebuffer(_gl.FRAMEBUFFER, null);
	} // rebind framebuffer with external textures


	function rebindTextures(renderTarget, colorTexture, depthTexture) {
		const renderTargetProperties = properties.get(renderTarget);

		if (colorTexture !== undefined) {
			setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer, renderTarget, renderTarget.texture, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D);
		}

		if (depthTexture !== undefined) {
			setupDepthRenderbuffer(renderTarget);
		}
	} // Set up GL resources for the render target


	function setupRenderTarget(renderTarget) {
		const texture = renderTarget.texture;
		const renderTargetProperties = properties.get(renderTarget);
		const textureProperties = properties.get(texture);
		renderTarget.addEventListener('dispose', onRenderTargetDispose);

		if (renderTarget.isWebGLMultipleRenderTargets !== true) {
			if (textureProperties.__webglTexture === undefined) {
				textureProperties.__webglTexture = _gl.createTexture();
			}

			textureProperties.__version = texture.version;
			info.memory.textures++;
		}

		const isCube = renderTarget.isWebGLCubeRenderTarget === true;
		const isMultipleRenderTargets = renderTarget.isWebGLMultipleRenderTargets === true;
		const isRenderTarget3D = texture.isDataTexture3D || texture.isDataTexture2DArray;
		const supportsMips = isPowerOfTwo$1(renderTarget) || isWebGL2; // Setup framebuffer

		if (isCube) {
			renderTargetProperties.__webglFramebuffer = [];

			for (let i = 0; i < 6; i++) {
				renderTargetProperties.__webglFramebuffer[i] = _gl.createFramebuffer();
			}
		} else {
			renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();

			if (isMultipleRenderTargets) {
				if (capabilities.drawBuffers) {
					const textures = renderTarget.texture;

					for (let i = 0, il = textures.length; i < il; i++) {
						const attachmentProperties = properties.get(textures[i]);

						if (attachmentProperties.__webglTexture === undefined) {
							attachmentProperties.__webglTexture = _gl.createTexture();
							info.memory.textures++;
						}
					}
				} else {
					console.warn('THREE.WebGLRenderer: WebGLMultipleRenderTargets can only be used with WebGL2 or WEBGL_draw_buffers extension.');
				}
			} else if (renderTarget.useRenderbuffer) {
				if (isWebGL2) {
					renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer();
					renderTargetProperties.__webglColorRenderbuffer = _gl.createRenderbuffer();

					_gl.bindRenderbuffer(_gl.RENDERBUFFER, renderTargetProperties.__webglColorRenderbuffer);

					const glFormat = utils.convert(texture.format, texture.encoding);
					const glType = utils.convert(texture.type);
					const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType, texture.encoding);
					const samples = getRenderTargetSamples(renderTarget);

					_gl.renderbufferStorageMultisample(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);

					state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer);

					_gl.framebufferRenderbuffer(_gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.RENDERBUFFER, renderTargetProperties.__webglColorRenderbuffer);

					_gl.bindRenderbuffer(_gl.RENDERBUFFER, null);

					if (renderTarget.depthBuffer) {
						renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer();
						setupRenderBufferStorage(renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true);
					}

					state.bindFramebuffer(_gl.FRAMEBUFFER, null);
				} else {
					console.warn('THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.');
				}
			}
		} // Setup color buffer


		if (isCube) {
			state.bindTexture(_gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture);
			setTextureParameters(_gl.TEXTURE_CUBE_MAP, texture, supportsMips);

			for (let i = 0; i < 6; i++) {
				setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer[i], renderTarget, texture, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i);
			}

			if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
				generateMipmap(_gl.TEXTURE_CUBE_MAP);
			}

			state.unbindTexture();
		} else if (isMultipleRenderTargets) {
			const textures = renderTarget.texture;

			for (let i = 0, il = textures.length; i < il; i++) {
				const attachment = textures[i];
				const attachmentProperties = properties.get(attachment);
				state.bindTexture(_gl.TEXTURE_2D, attachmentProperties.__webglTexture);
				setTextureParameters(_gl.TEXTURE_2D, attachment, supportsMips);
				setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer, renderTarget, attachment, _gl.COLOR_ATTACHMENT0 + i, _gl.TEXTURE_2D);

				if (textureNeedsGenerateMipmaps(attachment, supportsMips)) {
					generateMipmap(_gl.TEXTURE_2D);
				}
			}

			state.unbindTexture();
		} else {
			let glTextureType = _gl.TEXTURE_2D;

			if (isRenderTarget3D) {
				// Render targets containing layers, i.e: Texture 3D and 2d arrays
				if (isWebGL2) {
					const isTexture3D = texture.isDataTexture3D;
					glTextureType = isTexture3D ? _gl.TEXTURE_3D : _gl.TEXTURE_2D_ARRAY;
				} else {
					console.warn('THREE.DataTexture3D and THREE.DataTexture2DArray only supported with WebGL2.');
				}
			}

			state.bindTexture(glTextureType, textureProperties.__webglTexture);
			setTextureParameters(glTextureType, texture, supportsMips);
			setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer, renderTarget, texture, _gl.COLOR_ATTACHMENT0, glTextureType);

			if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
				generateMipmap(glTextureType);
			}

			state.unbindTexture();
		} // Setup depth and stencil buffers


		if (renderTarget.depthBuffer) {
			setupDepthRenderbuffer(renderTarget);
		}
	}

	function updateRenderTargetMipmap(renderTarget) {
		const supportsMips = isPowerOfTwo$1(renderTarget) || isWebGL2;
		const textures = renderTarget.isWebGLMultipleRenderTargets === true ? renderTarget.texture : [renderTarget.texture];

		for (let i = 0, il = textures.length; i < il; i++) {
			const texture = textures[i];

			if (textureNeedsGenerateMipmaps(texture, supportsMips)) {
				const target = renderTarget.isWebGLCubeRenderTarget ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D;

				const webglTexture = properties.get(texture).__webglTexture;

				state.bindTexture(target, webglTexture);
				generateMipmap(target);
				state.unbindTexture();
			}
		}
	}

	function updateMultisampleRenderTarget(renderTarget) {
		if (renderTarget.useRenderbuffer) {
			if (isWebGL2) {
				const width = renderTarget.width;
				const height = renderTarget.height;
				let mask = _gl.COLOR_BUFFER_BIT;
				const invalidationArray = [_gl.COLOR_ATTACHMENT0];
				const depthStyle = renderTarget.stencilBuffer ? _gl.DEPTH_STENCIL_ATTACHMENT : _gl.DEPTH_ATTACHMENT;

				if (renderTarget.depthBuffer) {
					invalidationArray.push(depthStyle);
				}

				if (!renderTarget.ignoreDepthForMultisampleCopy) {
					if (renderTarget.depthBuffer) mask |= _gl.DEPTH_BUFFER_BIT;
					if (renderTarget.stencilBuffer) mask |= _gl.STENCIL_BUFFER_BIT;
				}

				const renderTargetProperties = properties.get(renderTarget);
				state.bindFramebuffer(_gl.READ_FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer);
				state.bindFramebuffer(_gl.DRAW_FRAMEBUFFER, renderTargetProperties.__webglFramebuffer);

				if (renderTarget.ignoreDepthForMultisampleCopy) {
					_gl.invalidateFramebuffer(_gl.READ_FRAMEBUFFER, [depthStyle]);

					_gl.invalidateFramebuffer(_gl.DRAW_FRAMEBUFFER, [depthStyle]);
				}

				_gl.blitFramebuffer(0, 0, width, height, 0, 0, width, height, mask, _gl.NEAREST);

				_gl.invalidateFramebuffer(_gl.READ_FRAMEBUFFER, invalidationArray);

				state.bindFramebuffer(_gl.READ_FRAMEBUFFER, null);
				state.bindFramebuffer(_gl.DRAW_FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer);
			} else {
				console.warn('THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.');
			}
		}
	}

	function getRenderTargetSamples(renderTarget) {
		return isWebGL2 && (renderTarget.useRenderbuffer || renderTarget.useRenderToTexture) ? Math.min(maxSamples, renderTarget.samples) : 0;
	}

	function updateVideoTexture(texture) {
		const frame = info.render.frame; // Check the last frame we updated the VideoTexture

		if (_videoTextures.get(texture) !== frame) {
			_videoTextures.set(texture, frame);

			texture.update();
		}
	}

	function verifyColorSpace(texture, image) {
		const encoding = texture.encoding;
		const format = texture.format;
		const type = texture.type;
		if (texture.isCompressedTexture === true || texture.isVideoTexture === true || texture.format === _SRGBAFormat) return image;

		if (encoding !== LinearEncoding) {
			// sRGB
			if (encoding === sRGBEncoding) {
				if (isWebGL2 === false) {
					// in WebGL 1, try to use EXT_sRGB extension and unsized formats
					if (extensions.has('EXT_sRGB') === true && format === RGBAFormat) {
						texture.format = _SRGBAFormat; // it's not possible to generate mips in WebGL 1 with this extension

						texture.minFilter = LinearFilter;
						texture.generateMipmaps = false;
					} else {
						// slow fallback (CPU decode)
						image = ImageUtils.sRGBToLinear(image);
					}
				} else {
					// in WebGL 2 uncompressed textures can only be sRGB encoded if they have the RGBA8 format
					if (format !== RGBAFormat || type !== UnsignedByteType) {
						console.warn('THREE.WebGLTextures: sRGB encoded textures have to use RGBAFormat and UnsignedByteType.');
					}
				}
			} else {
				console.error('THREE.WebGLTextures: Unsupported texture encoding:', encoding);
			}
		}

		return image;
	} // backwards compatibility


	let warnedTexture2D = false;
	let warnedTextureCube = false;

	function safeSetTexture2D(texture, slot) {
		if (texture && texture.isWebGLRenderTarget) {
			if (warnedTexture2D === false) {
				console.warn('THREE.WebGLTextures.safeSetTexture2D: don\'t use render targets as textures. Use their .texture property instead.');
				warnedTexture2D = true;
			}

			texture = texture.texture;
		}

		setTexture2D(texture, slot);
	}

	function safeSetTextureCube(texture, slot) {
		if (texture && texture.isWebGLCubeRenderTarget) {
			if (warnedTextureCube === false) {
				console.warn('THREE.WebGLTextures.safeSetTextureCube: don\'t use cube render targets as textures. Use their .texture property instead.');
				warnedTextureCube = true;
			}

			texture = texture.texture;
		}

		setTextureCube(texture, slot);
	} //


	this.allocateTextureUnit = allocateTextureUnit;
	this.resetTextureUnits = resetTextureUnits;
	this.setTexture2D = setTexture2D;
	this.setTexture2DArray = setTexture2DArray;
	this.setTexture3D = setTexture3D;
	this.setTextureCube = setTextureCube;
	this.rebindTextures = rebindTextures;
	this.setupRenderTarget = setupRenderTarget;
	this.updateRenderTargetMipmap = updateRenderTargetMipmap;
	this.updateMultisampleRenderTarget = updateMultisampleRenderTarget;
	this.setupDepthRenderbuffer = setupDepthRenderbuffer;
	this.setupFrameBufferTexture = setupFrameBufferTexture;
	this.safeSetTexture2D = safeSetTexture2D;
	this.safeSetTextureCube = safeSetTextureCube;
}

function WebGLUtils(gl, extensions, capabilities) {
	const isWebGL2 = capabilities.isWebGL2;

	function convert(p, encoding = null) {
		let extension;
		if (p === UnsignedByteType) return gl.UNSIGNED_BYTE;
		if (p === UnsignedShort4444Type) return gl.UNSIGNED_SHORT_4_4_4_4;
		if (p === UnsignedShort5551Type) return gl.UNSIGNED_SHORT_5_5_5_1;
		if (p === ByteType) return gl.BYTE;
		if (p === ShortType) return gl.SHORT;
		if (p === UnsignedShortType) return gl.UNSIGNED_SHORT;
		if (p === IntType) return gl.INT;
		if (p === UnsignedIntType) return gl.UNSIGNED_INT;
		if (p === FloatType) return gl.FLOAT;

		if (p === HalfFloatType) {
			if (isWebGL2) return gl.HALF_FLOAT;
			extension = extensions.get('OES_texture_half_float');

			if (extension !== null) {
				return extension.HALF_FLOAT_OES;
			} else {
				return null;
			}
		}

		if (p === AlphaFormat) return gl.ALPHA;
		if (p === RGBAFormat) return gl.RGBA;
		if (p === LuminanceFormat) return gl.LUMINANCE;
		if (p === LuminanceAlphaFormat) return gl.LUMINANCE_ALPHA;
		if (p === DepthFormat) return gl.DEPTH_COMPONENT;
		if (p === DepthStencilFormat) return gl.DEPTH_STENCIL;
		if (p === RedFormat) return gl.RED;

		if (p === RGBFormat) {
			console.warn('THREE.WebGLRenderer: THREE.RGBFormat has been removed. Use THREE.RGBAFormat instead. https://github.com/mrdoob/three.js/pull/23228');
			return gl.RGBA;
		} // WebGL 1 sRGB fallback


		if (p === _SRGBAFormat) {
			extension = extensions.get('EXT_sRGB');

			if (extension !== null) {
				return extension.SRGB_ALPHA_EXT;
			} else {
				return null;
			}
		} // WebGL2 formats.


		if (p === RedIntegerFormat) return gl.RED_INTEGER;
		if (p === RGFormat) return gl.RG;
		if (p === RGIntegerFormat) return gl.RG_INTEGER;
		if (p === RGBAIntegerFormat) return gl.RGBA_INTEGER; // S3TC

		if (p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format) {
			if (encoding === sRGBEncoding) {
				extension = extensions.get('WEBGL_compressed_texture_s3tc_srgb');

				if (extension !== null) {
					if (p === RGB_S3TC_DXT1_Format) return extension.COMPRESSED_SRGB_S3TC_DXT1_EXT;
					if (p === RGBA_S3TC_DXT1_Format) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
					if (p === RGBA_S3TC_DXT3_Format) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
					if (p === RGBA_S3TC_DXT5_Format) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
				} else {
					return null;
				}
			} else {
				extension = extensions.get('WEBGL_compressed_texture_s3tc');

				if (extension !== null) {
					if (p === RGB_S3TC_DXT1_Format) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
					if (p === RGBA_S3TC_DXT1_Format) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
					if (p === RGBA_S3TC_DXT3_Format) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
					if (p === RGBA_S3TC_DXT5_Format) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
				} else {
					return null;
				}
			}
		} // PVRTC


		if (p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format) {
			extension = extensions.get('WEBGL_compressed_texture_pvrtc');

			if (extension !== null) {
				if (p === RGB_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
				if (p === RGB_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
				if (p === RGBA_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
				if (p === RGBA_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
			} else {
				return null;
			}
		} // ETC1


		if (p === RGB_ETC1_Format) {
			extension = extensions.get('WEBGL_compressed_texture_etc1');

			if (extension !== null) {
				return extension.COMPRESSED_RGB_ETC1_WEBGL;
			} else {
				return null;
			}
		} // ETC2


		if (p === RGB_ETC2_Format || p === RGBA_ETC2_EAC_Format) {
			extension = extensions.get('WEBGL_compressed_texture_etc');

			if (extension !== null) {
				if (p === RGB_ETC2_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ETC2 : extension.COMPRESSED_RGB8_ETC2;
				if (p === RGBA_ETC2_EAC_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC : extension.COMPRESSED_RGBA8_ETC2_EAC;
			} else {
				return null;
			}
		} // ASTC


		if (p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format || p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format || p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format || p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format || p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format) {
			extension = extensions.get('WEBGL_compressed_texture_astc');

			if (extension !== null) {
				if (p === RGBA_ASTC_4x4_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR : extension.COMPRESSED_RGBA_ASTC_4x4_KHR;
				if (p === RGBA_ASTC_5x4_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR : extension.COMPRESSED_RGBA_ASTC_5x4_KHR;
				if (p === RGBA_ASTC_5x5_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR : extension.COMPRESSED_RGBA_ASTC_5x5_KHR;
				if (p === RGBA_ASTC_6x5_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR : extension.COMPRESSED_RGBA_ASTC_6x5_KHR;
				if (p === RGBA_ASTC_6x6_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR : extension.COMPRESSED_RGBA_ASTC_6x6_KHR;
				if (p === RGBA_ASTC_8x5_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR : extension.COMPRESSED_RGBA_ASTC_8x5_KHR;
				if (p === RGBA_ASTC_8x6_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR : extension.COMPRESSED_RGBA_ASTC_8x6_KHR;
				if (p === RGBA_ASTC_8x8_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR : extension.COMPRESSED_RGBA_ASTC_8x8_KHR;
				if (p === RGBA_ASTC_10x5_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR : extension.COMPRESSED_RGBA_ASTC_10x5_KHR;
				if (p === RGBA_ASTC_10x6_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR : extension.COMPRESSED_RGBA_ASTC_10x6_KHR;
				if (p === RGBA_ASTC_10x8_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR : extension.COMPRESSED_RGBA_ASTC_10x8_KHR;
				if (p === RGBA_ASTC_10x10_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR : extension.COMPRESSED_RGBA_ASTC_10x10_KHR;
				if (p === RGBA_ASTC_12x10_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR : extension.COMPRESSED_RGBA_ASTC_12x10_KHR;
				if (p === RGBA_ASTC_12x12_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR : extension.COMPRESSED_RGBA_ASTC_12x12_KHR;
			} else {
				return null;
			}
		} // BPTC


		if (p === RGBA_BPTC_Format) {
			extension = extensions.get('EXT_texture_compression_bptc');

			if (extension !== null) {
				if (p === RGBA_BPTC_Format) return encoding === sRGBEncoding ? extension.COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT : extension.COMPRESSED_RGBA_BPTC_UNORM_EXT;
			} else {
				return null;
			}
		} //


		if (p === UnsignedInt248Type) {
			if (isWebGL2) return gl.UNSIGNED_INT_24_8;
			extension = extensions.get('WEBGL_depth_texture');

			if (extension !== null) {
				return extension.UNSIGNED_INT_24_8_WEBGL;
			} else {
				return null;
			}
		}
	}

	return {
		convert: convert
	};
}

class ArrayCamera extends PerspectiveCamera {
	constructor(array = []) {
		super();
		this.cameras = array;
	}

}

ArrayCamera.prototype.isArrayCamera = true;

class Group extends Object3D {
	constructor() {
		super();
		this.type = 'Group';
	}

}

Group.prototype.isGroup = true;

const _moveEvent = {
	type: 'move'
};

class WebXRController {
	constructor() {
		this._targetRay = null;
		this._grip = null;
		this._hand = null;
	}

	getHandSpace() {
		if (this._hand === null) {
			this._hand = new Group();
			this._hand.matrixAutoUpdate = false;
			this._hand.visible = false;
			this._hand.joints = {};
			this._hand.inputState = {
				pinching: false
			};
		}

		return this._hand;
	}

	getTargetRaySpace() {
		if (this._targetRay === null) {
			this._targetRay = new Group();
			this._targetRay.matrixAutoUpdate = false;
			this._targetRay.visible = false;
			this._targetRay.hasLinearVelocity = false;
			this._targetRay.linearVelocity = new Vector3();
			this._targetRay.hasAngularVelocity = false;
			this._targetRay.angularVelocity = new Vector3();
		}

		return this._targetRay;
	}

	getGripSpace() {
		if (this._grip === null) {
			this._grip = new Group();
			this._grip.matrixAutoUpdate = false;
			this._grip.visible = false;
			this._grip.hasLinearVelocity = false;
			this._grip.linearVelocity = new Vector3();
			this._grip.hasAngularVelocity = false;
			this._grip.angularVelocity = new Vector3();
		}

		return this._grip;
	}

	dispatchEvent(event) {
		if (this._targetRay !== null) {
			this._targetRay.dispatchEvent(event);
		}

		if (this._grip !== null) {
			this._grip.dispatchEvent(event);
		}

		if (this._hand !== null) {
			this._hand.dispatchEvent(event);
		}

		return this;
	}

	disconnect(inputSource) {
		this.dispatchEvent({
			type: 'disconnected',
			data: inputSource
		});

		if (this._targetRay !== null) {
			this._targetRay.visible = false;
		}

		if (this._grip !== null) {
			this._grip.visible = false;
		}

		if (this._hand !== null) {
			this._hand.visible = false;
		}

		return this;
	}

	update(inputSource, frame, referenceSpace) {
		let inputPose = null;
		let gripPose = null;
		let handPose = null;
		const targetRay = this._targetRay;
		const grip = this._grip;
		const hand = this._hand;

		if (inputSource && frame.session.visibilityState !== 'visible-blurred') {
			if (targetRay !== null) {
				inputPose = frame.getPose(inputSource.targetRaySpace, referenceSpace);

				if (inputPose !== null) {
					targetRay.matrix.fromArray(inputPose.transform.matrix);
					targetRay.matrix.decompose(targetRay.position, targetRay.rotation, targetRay.scale);

					if (inputPose.linearVelocity) {
						targetRay.hasLinearVelocity = true;
						targetRay.linearVelocity.copy(inputPose.linearVelocity);
					} else {
						targetRay.hasLinearVelocity = false;
					}

					if (inputPose.angularVelocity) {
						targetRay.hasAngularVelocity = true;
						targetRay.angularVelocity.copy(inputPose.angularVelocity);
					} else {
						targetRay.hasAngularVelocity = false;
					}

					this.dispatchEvent(_moveEvent);
				}
			}

			if (hand && inputSource.hand) {
				handPose = true;

				for (const inputjoint of inputSource.hand.values()) {
					// Update the joints groups with the XRJoint poses
					const jointPose = frame.getJointPose(inputjoint, referenceSpace);

					if (hand.joints[inputjoint.jointName] === undefined) {
						// The transform of this joint will be updated with the joint pose on each frame
						const joint = new Group();
						joint.matrixAutoUpdate = false;
						joint.visible = false;
						hand.joints[inputjoint.jointName] = joint; // ??

						hand.add(joint);
					}

					const joint = hand.joints[inputjoint.jointName];

					if (jointPose !== null) {
						joint.matrix.fromArray(jointPose.transform.matrix);
						joint.matrix.decompose(joint.position, joint.rotation, joint.scale);
						joint.jointRadius = jointPose.radius;
					}

					joint.visible = jointPose !== null;
				} // Custom events
				// Check pinchz


				const indexTip = hand.joints['index-finger-tip'];
				const thumbTip = hand.joints['thumb-tip'];
				const distance = indexTip.position.distanceTo(thumbTip.position);
				const distanceToPinch = 0.02;
				const threshold = 0.005;

				if (hand.inputState.pinching && distance > distanceToPinch + threshold) {
					hand.inputState.pinching = false;
					this.dispatchEvent({
						type: 'pinchend',
						handedness: inputSource.handedness,
						target: this
					});
				} else if (!hand.inputState.pinching && distance <= distanceToPinch - threshold) {
					hand.inputState.pinching = true;
					this.dispatchEvent({
						type: 'pinchstart',
						handedness: inputSource.handedness,
						target: this
					});
				}
			} else {
				if (grip !== null && inputSource.gripSpace) {
					gripPose = frame.getPose(inputSource.gripSpace, referenceSpace);

					if (gripPose !== null) {
						grip.matrix.fromArray(gripPose.transform.matrix);
						grip.matrix.decompose(grip.position, grip.rotation, grip.scale);

						if (gripPose.linearVelocity) {
							grip.hasLinearVelocity = true;
							grip.linearVelocity.copy(gripPose.linearVelocity);
						} else {
							grip.hasLinearVelocity = false;
						}

						if (gripPose.angularVelocity) {
							grip.hasAngularVelocity = true;
							grip.angularVelocity.copy(gripPose.angularVelocity);
						} else {
							grip.hasAngularVelocity = false;
						}
					}
				}
			}
		}

		if (targetRay !== null) {
			targetRay.visible = inputPose !== null;
		}

		if (grip !== null) {
			grip.visible = gripPose !== null;
		}

		if (hand !== null) {
			hand.visible = handPose !== null;
		}

		return this;
	}

}

class DepthTexture extends Texture {
	constructor(width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format) {
		format = format !== undefined ? format : DepthFormat;

		if (format !== DepthFormat && format !== DepthStencilFormat) {
			throw new Error('DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat');
		}

		if (type === undefined && format === DepthFormat) type = UnsignedShortType;
		if (type === undefined && format === DepthStencilFormat) type = UnsignedInt248Type;
		super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
		this.image = {
			width: width,
			height: height
		};
		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
		this.flipY = false;
		this.generateMipmaps = false;
	}

}

DepthTexture.prototype.isDepthTexture = true;

class WebXRManager extends EventDispatcher {
	constructor(renderer, gl) {
		super();
		const scope = this;
		let session = null;
		let framebufferScaleFactor = 1.0;
		let referenceSpace = null;
		let referenceSpaceType = 'local-floor';
		const hasMultisampledRenderToTexture = renderer.extensions.has('WEBGL_multisampled_render_to_texture');
		let pose = null;
		let glBinding = null;
		let glProjLayer = null;
		let glBaseLayer = null;
		let isMultisample = false;
		let xrFrame = null;
		const attributes = gl.getContextAttributes();
		let initialRenderTarget = null;
		let newRenderTarget = null;
		const controllers = [];
		const inputSourcesMap = new Map(); //

		const cameraL = new PerspectiveCamera();
		cameraL.layers.enable(1);
		cameraL.viewport = new Vector4();
		const cameraR = new PerspectiveCamera();
		cameraR.layers.enable(2);
		cameraR.viewport = new Vector4();
		const cameras = [cameraL, cameraR];
		const cameraVR = new ArrayCamera();
		cameraVR.layers.enable(1);
		cameraVR.layers.enable(2);
		let _currentDepthNear = null;
		let _currentDepthFar = null; //

		this.cameraAutoUpdate = true;
		this.enabled = false;
		this.isPresenting = false;

		this.getController = function (index) {
			let controller = controllers[index];

			if (controller === undefined) {
				controller = new WebXRController();
				controllers[index] = controller;
			}

			return controller.getTargetRaySpace();
		};

		this.getControllerGrip = function (index) {
			let controller = controllers[index];

			if (controller === undefined) {
				controller = new WebXRController();
				controllers[index] = controller;
			}

			return controller.getGripSpace();
		};

		this.getHand = function (index) {
			let controller = controllers[index];

			if (controller === undefined) {
				controller = new WebXRController();
				controllers[index] = controller;
			}

			return controller.getHandSpace();
		}; //


		function onSessionEvent(event) {
			const controller = inputSourcesMap.get(event.inputSource);

			if (controller) {
				controller.dispatchEvent({
					type: event.type,
					data: event.inputSource
				});
			}
		}

		function onSessionEnd() {
			inputSourcesMap.forEach(function (controller, inputSource) {
				controller.disconnect(inputSource);
			});
			inputSourcesMap.clear();
			_currentDepthNear = null;
			_currentDepthFar = null; // restore framebuffer/rendering state

			renderer.setRenderTarget(initialRenderTarget);
			glBaseLayer = null;
			glProjLayer = null;
			glBinding = null;
			session = null;
			newRenderTarget = null; //

			animation.stop();
			scope.isPresenting = false;
			scope.dispatchEvent({
				type: 'sessionend'
			});
		}

		this.setFramebufferScaleFactor = function (value) {
			framebufferScaleFactor = value;

			if (scope.isPresenting === true) {
				console.warn('THREE.WebXRManager: Cannot change framebuffer scale while presenting.');
			}
		};

		this.setReferenceSpaceType = function (value) {
			referenceSpaceType = value;

			if (scope.isPresenting === true) {
				console.warn('THREE.WebXRManager: Cannot change reference space type while presenting.');
			}
		};

		this.getReferenceSpace = function () {
			return referenceSpace;
		};

		this.getBaseLayer = function () {
			return glProjLayer !== null ? glProjLayer : glBaseLayer;
		};

		this.getBinding = function () {
			return glBinding;
		};

		this.getFrame = function () {
			return xrFrame;
		};

		this.getSession = function () {
			return session;
		};

		this.setSession = async function (value) {
			session = value;

			if (session !== null) {
				initialRenderTarget = renderer.getRenderTarget();
				session.addEventListener('select', onSessionEvent);
				session.addEventListener('selectstart', onSessionEvent);
				session.addEventListener('selectend', onSessionEvent);
				session.addEventListener('squeeze', onSessionEvent);
				session.addEventListener('squeezestart', onSessionEvent);
				session.addEventListener('squeezeend', onSessionEvent);
				session.addEventListener('end', onSessionEnd);
				session.addEventListener('inputsourceschange', onInputSourcesChange);

				if (attributes.xrCompatible !== true) {
					await gl.makeXRCompatible();
				}

				if (session.renderState.layers === undefined || renderer.capabilities.isWebGL2 === false) {
					const layerInit = {
						antialias: session.renderState.layers === undefined ? attributes.antialias : true,
						alpha: attributes.alpha,
						depth: attributes.depth,
						stencil: attributes.stencil,
						framebufferScaleFactor: framebufferScaleFactor
					};
					glBaseLayer = new XRWebGLLayer(session, gl, layerInit);
					session.updateRenderState({
						baseLayer: glBaseLayer
					});
					newRenderTarget = new WebGLRenderTarget(glBaseLayer.framebufferWidth, glBaseLayer.framebufferHeight, {
						format: RGBAFormat,
						type: UnsignedByteType,
						encoding: renderer.outputEncoding
					});
				} else {
					isMultisample = attributes.antialias;
					let depthFormat = null;
					let depthType = null;
					let glDepthFormat = null;

					if (attributes.depth) {
						glDepthFormat = attributes.stencil ? gl.DEPTH24_STENCIL8 : gl.DEPTH_COMPONENT24;
						depthFormat = attributes.stencil ? DepthStencilFormat : DepthFormat;
						depthType = attributes.stencil ? UnsignedInt248Type : UnsignedShortType;
					}

					const projectionlayerInit = {
						colorFormat: renderer.outputEncoding === sRGBEncoding ? gl.SRGB8_ALPHA8 : gl.RGBA8,
						depthFormat: glDepthFormat,
						scaleFactor: framebufferScaleFactor
					};
					glBinding = new XRWebGLBinding(session, gl);
					glProjLayer = glBinding.createProjectionLayer(projectionlayerInit);
					session.updateRenderState({
						layers: [glProjLayer]
					});

					if (isMultisample) {
						newRenderTarget = new WebGLMultisampleRenderTarget(glProjLayer.textureWidth, glProjLayer.textureHeight, {
							format: RGBAFormat,
							type: UnsignedByteType,
							depthTexture: new DepthTexture(glProjLayer.textureWidth, glProjLayer.textureHeight, depthType, undefined, undefined, undefined, undefined, undefined, undefined, depthFormat),
							stencilBuffer: attributes.stencil,
							ignoreDepth: glProjLayer.ignoreDepthValues,
							useRenderToTexture: hasMultisampledRenderToTexture,
							encoding: renderer.outputEncoding
						});
					} else {
						newRenderTarget = new WebGLRenderTarget(glProjLayer.textureWidth, glProjLayer.textureHeight, {
							format: RGBAFormat,
							type: UnsignedByteType,
							depthTexture: new DepthTexture(glProjLayer.textureWidth, glProjLayer.textureHeight, depthType, undefined, undefined, undefined, undefined, undefined, undefined, depthFormat),
							stencilBuffer: attributes.stencil,
							ignoreDepth: glProjLayer.ignoreDepthValues,
							encoding: renderer.outputEncoding
						});
					}
				}

				newRenderTarget.isXRRenderTarget = true; // TODO Remove this when possible, see #23278
				// Set foveation to maximum.

				this.setFoveation(1.0);
				referenceSpace = await session.requestReferenceSpace(referenceSpaceType);
				animation.setContext(session);
				animation.start();
				scope.isPresenting = true;
				scope.dispatchEvent({
					type: 'sessionstart'
				});
			}
		};

		function onInputSourcesChange(event) {
			const inputSources = session.inputSources; // Assign inputSources to available controllers

			for (let i = 0; i < controllers.length; i++) {
				inputSourcesMap.set(inputSources[i], controllers[i]);
			} // Notify disconnected


			for (let i = 0; i < event.removed.length; i++) {
				const inputSource = event.removed[i];
				const controller = inputSourcesMap.get(inputSource);

				if (controller) {
					controller.dispatchEvent({
						type: 'disconnected',
						data: inputSource
					});
					inputSourcesMap.delete(inputSource);
				}
			} // Notify connected


			for (let i = 0; i < event.added.length; i++) {
				const inputSource = event.added[i];
				const controller = inputSourcesMap.get(inputSource);

				if (controller) {
					controller.dispatchEvent({
						type: 'connected',
						data: inputSource
					});
				}
			}
		} //


		const cameraLPos = new Vector3();
		const cameraRPos = new Vector3();
		/**
		 * Assumes 2 cameras that are parallel and share an X-axis, and that
		 * the cameras' projection and world matrices have already been set.
		 * And that near and far planes are identical for both cameras.
		 * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765
		 */

		function setProjectionFromUnion(camera, cameraL, cameraR) {
			cameraLPos.setFromMatrixPosition(cameraL.matrixWorld);
			cameraRPos.setFromMatrixPosition(cameraR.matrixWorld);
			const ipd = cameraLPos.distanceTo(cameraRPos);
			const projL = cameraL.projectionMatrix.elements;
			const projR = cameraR.projectionMatrix.elements; // VR systems will have identical far and near planes, and
			// most likely identical top and bottom frustum extents.
			// Use the left camera for these values.

			const near = projL[14] / (projL[10] - 1);
			const far = projL[14] / (projL[10] + 1);
			const topFov = (projL[9] + 1) / projL[5];
			const bottomFov = (projL[9] - 1) / projL[5];
			const leftFov = (projL[8] - 1) / projL[0];
			const rightFov = (projR[8] + 1) / projR[0];
			const left = near * leftFov;
			const right = near * rightFov; // Calculate the new camera's position offset from the
			// left camera. xOffset should be roughly half `ipd`.

			const zOffset = ipd / (-leftFov + rightFov);
			const xOffset = zOffset * -leftFov; // TODO: Better way to apply this offset?

			cameraL.matrixWorld.decompose(camera.position, camera.quaternion, camera.scale);
			camera.translateX(xOffset);
			camera.translateZ(zOffset);
			camera.matrixWorld.compose(camera.position, camera.quaternion, camera.scale);
			camera.matrixWorldInverse.copy(camera.matrixWorld).invert(); // Find the union of the frustum values of the cameras and scale
			// the values so that the near plane's position does not change in world space,
			// although must now be relative to the new union camera.

			const near2 = near + zOffset;
			const far2 = far + zOffset;
			const left2 = left - xOffset;
			const right2 = right + (ipd - xOffset);
			const top2 = topFov * far / far2 * near2;
			const bottom2 = bottomFov * far / far2 * near2;
			camera.projectionMatrix.makePerspective(left2, right2, top2, bottom2, near2, far2);
		}

		function updateCamera(camera, parent) {
			if (parent === null) {
				camera.matrixWorld.copy(camera.matrix);
			} else {
				camera.matrixWorld.multiplyMatrices(parent.matrixWorld, camera.matrix);
			}

			camera.matrixWorldInverse.copy(camera.matrixWorld).invert();
		}

		this.updateCamera = function (camera) {
			if (session === null) return;
			cameraVR.near = cameraR.near = cameraL.near = camera.near;
			cameraVR.far = cameraR.far = cameraL.far = camera.far;

			if (_currentDepthNear !== cameraVR.near || _currentDepthFar !== cameraVR.far) {
				// Note that the new renderState won't apply until the next frame. See #18320
				session.updateRenderState({
					depthNear: cameraVR.near,
					depthFar: cameraVR.far
				});
				_currentDepthNear = cameraVR.near;
				_currentDepthFar = cameraVR.far;
			}

			const parent = camera.parent;
			const cameras = cameraVR.cameras;
			updateCamera(cameraVR, parent);

			for (let i = 0; i < cameras.length; i++) {
				updateCamera(cameras[i], parent);
			}

			cameraVR.matrixWorld.decompose(cameraVR.position, cameraVR.quaternion, cameraVR.scale); // update user camera and its children

			camera.position.copy(cameraVR.position);
			camera.quaternion.copy(cameraVR.quaternion);
			camera.scale.copy(cameraVR.scale);
			camera.matrix.copy(cameraVR.matrix);
			camera.matrixWorld.copy(cameraVR.matrixWorld);
			const children = camera.children;

			for (let i = 0, l = children.length; i < l; i++) {
				children[i].updateMatrixWorld(true);
			} // update projection matrix for proper view frustum culling


			if (cameras.length === 2) {
				setProjectionFromUnion(cameraVR, cameraL, cameraR);
			} else {
				// assume single camera setup (AR)
				cameraVR.projectionMatrix.copy(cameraL.projectionMatrix);
			}
		};

		this.getCamera = function () {
			return cameraVR;
		};

		this.getFoveation = function () {
			if (glProjLayer !== null) {
				return glProjLayer.fixedFoveation;
			}

			if (glBaseLayer !== null) {
				return glBaseLayer.fixedFoveation;
			}

			return undefined;
		};

		this.setFoveation = function (foveation) {
			// 0 = no foveation = full resolution
			// 1 = maximum foveation = the edges render at lower resolution
			if (glProjLayer !== null) {
				glProjLayer.fixedFoveation = foveation;
			}

			if (glBaseLayer !== null && glBaseLayer.fixedFoveation !== undefined) {
				glBaseLayer.fixedFoveation = foveation;
			}
		}; // Animation Loop


		let onAnimationFrameCallback = null;

		function onAnimationFrame(time, frame) {
			pose = frame.getViewerPose(referenceSpace);
			xrFrame = frame;

			if (pose !== null) {
				const views = pose.views;

				if (glBaseLayer !== null) {
					renderer.setRenderTargetFramebuffer(newRenderTarget, glBaseLayer.framebuffer);
					renderer.setRenderTarget(newRenderTarget);
				}

				let cameraVRNeedsUpdate = false; // check if it's necessary to rebuild cameraVR's camera list

				if (views.length !== cameraVR.cameras.length) {
					cameraVR.cameras.length = 0;
					cameraVRNeedsUpdate = true;
				}

				for (let i = 0; i < views.length; i++) {
					const view = views[i];
					let viewport = null;

					if (glBaseLayer !== null) {
						viewport = glBaseLayer.getViewport(view);
					} else {
						const glSubImage = glBinding.getViewSubImage(glProjLayer, view);
						viewport = glSubImage.viewport; // For side-by-side projection, we only produce a single texture for both eyes.

						if (i === 0) {
							renderer.setRenderTargetTextures(newRenderTarget, glSubImage.colorTexture, glProjLayer.ignoreDepthValues ? undefined : glSubImage.depthStencilTexture);
							renderer.setRenderTarget(newRenderTarget);
						}
					}

					const camera = cameras[i];
					camera.matrix.fromArray(view.transform.matrix);
					camera.projectionMatrix.fromArray(view.projectionMatrix);
					camera.viewport.set(viewport.x, viewport.y, viewport.width, viewport.height);

					if (i === 0) {
						cameraVR.matrix.copy(camera.matrix);
					}

					if (cameraVRNeedsUpdate === true) {
						cameraVR.cameras.push(camera);
					}
				}
			} //


			const inputSources = session.inputSources;

			for (let i = 0; i < controllers.length; i++) {
				const controller = controllers[i];
				const inputSource = inputSources[i];
				controller.update(inputSource, frame, referenceSpace);
			}

			if (onAnimationFrameCallback) onAnimationFrameCallback(time, frame);
			xrFrame = null;
		}

		const animation = new WebGLAnimation();
		animation.setAnimationLoop(onAnimationFrame);

		this.setAnimationLoop = function (callback) {
			onAnimationFrameCallback = callback;
		};

		this.dispose = function () {};
	}

}

function WebGLMaterials(properties) {
	function refreshFogUniforms(uniforms, fog) {
		uniforms.fogColor.value.copy(fog.color);

		if (fog.isFog) {
			uniforms.fogNear.value = fog.near;
			uniforms.fogFar.value = fog.far;
		} else if (fog.isFogExp2) {
			uniforms.fogDensity.value = fog.density;
		}
	}

	function refreshMaterialUniforms(uniforms, material, pixelRatio, height, transmissionRenderTarget) {
		if (material.isMeshBasicMaterial) {
			refreshUniformsCommon(uniforms, material);
		} else if (material.isMeshLambertMaterial) {
			refreshUniformsCommon(uniforms, material);
			refreshUniformsLambert(uniforms, material);
		} else if (material.isMeshToonMaterial) {
			refreshUniformsCommon(uniforms, material);
			refreshUniformsToon(uniforms, material);
		} else if (material.isMeshPhongMaterial) {
			refreshUniformsCommon(uniforms, material);
			refreshUniformsPhong(uniforms, material);
		} else if (material.isMeshStandardMaterial) {
			refreshUniformsCommon(uniforms, material);

			if (material.isMeshPhysicalMaterial) {
				refreshUniformsPhysical(uniforms, material, transmissionRenderTarget);
			} else {
				refreshUniformsStandard(uniforms, material);
			}
		} else if (material.isMeshMatcapMaterial) {
			refreshUniformsCommon(uniforms, material);
			refreshUniformsMatcap(uniforms, material);
		} else if (material.isMeshDepthMaterial) {
			refreshUniformsCommon(uniforms, material);
			refreshUniformsDepth(uniforms, material);
		} else if (material.isMeshDistanceMaterial) {
			refreshUniformsCommon(uniforms, material);
			refreshUniformsDistance(uniforms, material);
		} else if (material.isMeshNormalMaterial) {
			refreshUniformsCommon(uniforms, material);
			refreshUniformsNormal(uniforms, material);
		} else if (material.isLineBasicMaterial) {
			refreshUniformsLine(uniforms, material);

			if (material.isLineDashedMaterial) {
				refreshUniformsDash(uniforms, material);
			}
		} else if (material.isPointsMaterial) {
			refreshUniformsPoints(uniforms, material, pixelRatio, height);
		} else if (material.isSpriteMaterial) {
			refreshUniformsSprites(uniforms, material);
		} else if (material.isShadowMaterial) {
			uniforms.color.value.copy(material.color);
			uniforms.opacity.value = material.opacity;
		} else if (material.isShaderMaterial) {
			material.uniformsNeedUpdate = false; // #15581
		}
	}

	function refreshUniformsCommon(uniforms, material) {
		uniforms.opacity.value = material.opacity;

		if (material.color) {
			uniforms.diffuse.value.copy(material.color);
		}

		if (material.emissive) {
			uniforms.emissive.value.copy(material.emissive).multiplyScalar(material.emissiveIntensity);
		}

		if (material.map) {
			uniforms.map.value = material.map;
		}

		if (material.alphaMap) {
			uniforms.alphaMap.value = material.alphaMap;
		}

		if (material.specularMap) {
			uniforms.specularMap.value = material.specularMap;
		}

		if (material.alphaTest > 0) {
			uniforms.alphaTest.value = material.alphaTest;
		}

		const envMap = properties.get(material).envMap;

		if (envMap) {
			uniforms.envMap.value = envMap;
			uniforms.flipEnvMap.value = envMap.isCubeTexture && envMap.isRenderTargetTexture === false ? -1 : 1;
			uniforms.reflectivity.value = material.reflectivity;
			uniforms.ior.value = material.ior;
			uniforms.refractionRatio.value = material.refractionRatio;
		}

		if (material.lightMap) {
			uniforms.lightMap.value = material.lightMap;
			uniforms.lightMapIntensity.value = material.lightMapIntensity;
		}

		if (material.aoMap) {
			uniforms.aoMap.value = material.aoMap;
			uniforms.aoMapIntensity.value = material.aoMapIntensity;
		} // uv repeat and offset setting priorities
		// 1. color map
		// 2. specular map
		// 3. displacementMap map
		// 4. normal map
		// 5. bump map
		// 6. roughnessMap map
		// 7. metalnessMap map
		// 8. alphaMap map
		// 9. emissiveMap map
		// 10. clearcoat map
		// 11. clearcoat normal map
		// 12. clearcoat roughnessMap map
		// 13. specular intensity map
		// 14. specular tint map
		// 15. transmission map
		// 16. thickness map


		let uvScaleMap;

		if (material.map) {
			uvScaleMap = material.map;
		} else if (material.specularMap) {
			uvScaleMap = material.specularMap;
		} else if (material.displacementMap) {
			uvScaleMap = material.displacementMap;
		} else if (material.normalMap) {
			uvScaleMap = material.normalMap;
		} else if (material.bumpMap) {
			uvScaleMap = material.bumpMap;
		} else if (material.roughnessMap) {
			uvScaleMap = material.roughnessMap;
		} else if (material.metalnessMap) {
			uvScaleMap = material.metalnessMap;
		} else if (material.alphaMap) {
			uvScaleMap = material.alphaMap;
		} else if (material.emissiveMap) {
			uvScaleMap = material.emissiveMap;
		} else if (material.clearcoatMap) {
			uvScaleMap = material.clearcoatMap;
		} else if (material.clearcoatNormalMap) {
			uvScaleMap = material.clearcoatNormalMap;
		} else if (material.clearcoatRoughnessMap) {
			uvScaleMap = material.clearcoatRoughnessMap;
		} else if (material.specularIntensityMap) {
			uvScaleMap = material.specularIntensityMap;
		} else if (material.specularColorMap) {
			uvScaleMap = material.specularColorMap;
		} else if (material.transmissionMap) {
			uvScaleMap = material.transmissionMap;
		} else if (material.thicknessMap) {
			uvScaleMap = material.thicknessMap;
		} else if (material.sheenColorMap) {
			uvScaleMap = material.sheenColorMap;
		} else if (material.sheenRoughnessMap) {
			uvScaleMap = material.sheenRoughnessMap;
		}

		if (uvScaleMap !== undefined) {
			// backwards compatibility
			if (uvScaleMap.isWebGLRenderTarget) {
				uvScaleMap = uvScaleMap.texture;
			}

			if (uvScaleMap.matrixAutoUpdate === true) {
				uvScaleMap.updateMatrix();
			}

			uniforms.uvTransform.value.copy(uvScaleMap.matrix);
		} // uv repeat and offset setting priorities for uv2
		// 1. ao map
		// 2. light map


		let uv2ScaleMap;

		if (material.aoMap) {
			uv2ScaleMap = material.aoMap;
		} else if (material.lightMap) {
			uv2ScaleMap = material.lightMap;
		}

		if (uv2ScaleMap !== undefined) {
			// backwards compatibility
			if (uv2ScaleMap.isWebGLRenderTarget) {
				uv2ScaleMap = uv2ScaleMap.texture;
			}

			if (uv2ScaleMap.matrixAutoUpdate === true) {
				uv2ScaleMap.updateMatrix();
			}

			uniforms.uv2Transform.value.copy(uv2ScaleMap.matrix);
		}
	}

	function refreshUniformsLine(uniforms, material) {
		uniforms.diffuse.value.copy(material.color);
		uniforms.opacity.value = material.opacity;
	}

	function refreshUniformsDash(uniforms, material) {
		uniforms.dashSize.value = material.dashSize;
		uniforms.totalSize.value = material.dashSize + material.gapSize;
		uniforms.scale.value = material.scale;
	}

	function refreshUniformsPoints(uniforms, material, pixelRatio, height) {
		uniforms.diffuse.value.copy(material.color);
		uniforms.opacity.value = material.opacity;
		uniforms.size.value = material.size * pixelRatio;
		uniforms.scale.value = height * 0.5;

		if (material.map) {
			uniforms.map.value = material.map;
		}

		if (material.alphaMap) {
			uniforms.alphaMap.value = material.alphaMap;
		}

		if (material.alphaTest > 0) {
			uniforms.alphaTest.value = material.alphaTest;
		} // uv repeat and offset setting priorities
		// 1. color map
		// 2. alpha map


		let uvScaleMap;

		if (material.map) {
			uvScaleMap = material.map;
		} else if (material.alphaMap) {
			uvScaleMap = material.alphaMap;
		}

		if (uvScaleMap !== undefined) {
			if (uvScaleMap.matrixAutoUpdate === true) {
				uvScaleMap.updateMatrix();
			}

			uniforms.uvTransform.value.copy(uvScaleMap.matrix);
		}
	}

	function refreshUniformsSprites(uniforms, material) {
		uniforms.diffuse.value.copy(material.color);
		uniforms.opacity.value = material.opacity;
		uniforms.rotation.value = material.rotation;

		if (material.map) {
			uniforms.map.value = material.map;
		}

		if (material.alphaMap) {
			uniforms.alphaMap.value = material.alphaMap;
		}

		if (material.alphaTest > 0) {
			uniforms.alphaTest.value = material.alphaTest;
		} // uv repeat and offset setting priorities
		// 1. color map
		// 2. alpha map


		let uvScaleMap;

		if (material.map) {
			uvScaleMap = material.map;
		} else if (material.alphaMap) {
			uvScaleMap = material.alphaMap;
		}

		if (uvScaleMap !== undefined) {
			if (uvScaleMap.matrixAutoUpdate === true) {
				uvScaleMap.updateMatrix();
			}

			uniforms.uvTransform.value.copy(uvScaleMap.matrix);
		}
	}

	function refreshUniformsLambert(uniforms, material) {
		if (material.emissiveMap) {
			uniforms.emissiveMap.value = material.emissiveMap;
		}
	}

	function refreshUniformsPhong(uniforms, material) {
		uniforms.specular.value.copy(material.specular);
		uniforms.shininess.value = Math.max(material.shininess, 1e-4); // to prevent pow( 0.0, 0.0 )

		if (material.emissiveMap) {
			uniforms.emissiveMap.value = material.emissiveMap;
		}

		if (material.bumpMap) {
			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if (material.side === BackSide) uniforms.bumpScale.value *= -1;
		}

		if (material.normalMap) {
			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy(material.normalScale);
			if (material.side === BackSide) uniforms.normalScale.value.negate();
		}

		if (material.displacementMap) {
			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;
		}
	}

	function refreshUniformsToon(uniforms, material) {
		if (material.gradientMap) {
			uniforms.gradientMap.value = material.gradientMap;
		}

		if (material.emissiveMap) {
			uniforms.emissiveMap.value = material.emissiveMap;
		}

		if (material.bumpMap) {
			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if (material.side === BackSide) uniforms.bumpScale.value *= -1;
		}

		if (material.normalMap) {
			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy(material.normalScale);
			if (material.side === BackSide) uniforms.normalScale.value.negate();
		}

		if (material.displacementMap) {
			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;
		}
	}

	function refreshUniformsStandard(uniforms, material) {
		uniforms.roughness.value = material.roughness;
		uniforms.metalness.value = material.metalness;

		if (material.roughnessMap) {
			uniforms.roughnessMap.value = material.roughnessMap;
		}

		if (material.metalnessMap) {
			uniforms.metalnessMap.value = material.metalnessMap;
		}

		if (material.emissiveMap) {
			uniforms.emissiveMap.value = material.emissiveMap;
		}

		if (material.bumpMap) {
			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if (material.side === BackSide) uniforms.bumpScale.value *= -1;
		}

		if (material.normalMap) {
			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy(material.normalScale);
			if (material.side === BackSide) uniforms.normalScale.value.negate();
		}

		if (material.displacementMap) {
			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;
		}

		const envMap = properties.get(material).envMap;

		if (envMap) {
			//uniforms.envMap.value = material.envMap; // part of uniforms common
			uniforms.envMapIntensity.value = material.envMapIntensity;
		}
	}

	function refreshUniformsPhysical(uniforms, material, transmissionRenderTarget) {
		refreshUniformsStandard(uniforms, material);
		uniforms.ior.value = material.ior; // also part of uniforms common

		if (material.sheen > 0) {
			uniforms.sheenColor.value.copy(material.sheenColor).multiplyScalar(material.sheen);
			uniforms.sheenRoughness.value = material.sheenRoughness;

			if (material.sheenColorMap) {
				uniforms.sheenColorMap.value = material.sheenColorMap;
			}

			if (material.sheenRoughnessMap) {
				uniforms.sheenRoughnessMap.value = material.sheenRoughnessMap;
			}
		}

		if (material.clearcoat > 0) {
			uniforms.clearcoat.value = material.clearcoat;
			uniforms.clearcoatRoughness.value = material.clearcoatRoughness;

			if (material.clearcoatMap) {
				uniforms.clearcoatMap.value = material.clearcoatMap;
			}

			if (material.clearcoatRoughnessMap) {
				uniforms.clearcoatRoughnessMap.value = material.clearcoatRoughnessMap;
			}

			if (material.clearcoatNormalMap) {
				uniforms.clearcoatNormalScale.value.copy(material.clearcoatNormalScale);
				uniforms.clearcoatNormalMap.value = material.clearcoatNormalMap;

				if (material.side === BackSide) {
					uniforms.clearcoatNormalScale.value.negate();
				}
			}
		}

		if (material.transmission > 0) {
			uniforms.transmission.value = material.transmission;
			uniforms.transmissionSamplerMap.value = transmissionRenderTarget.texture;
			uniforms.transmissionSamplerSize.value.set(transmissionRenderTarget.width, transmissionRenderTarget.height);

			if (material.transmissionMap) {
				uniforms.transmissionMap.value = material.transmissionMap;
			}

			uniforms.thickness.value = material.thickness;

			if (material.thicknessMap) {
				uniforms.thicknessMap.value = material.thicknessMap;
			}

			uniforms.attenuationDistance.value = material.attenuationDistance;
			uniforms.attenuationColor.value.copy(material.attenuationColor);
		}

		uniforms.specularIntensity.value = material.specularIntensity;
		uniforms.specularColor.value.copy(material.specularColor);

		if (material.specularIntensityMap) {
			uniforms.specularIntensityMap.value = material.specularIntensityMap;
		}

		if (material.specularColorMap) {
			uniforms.specularColorMap.value = material.specularColorMap;
		}
	}

	function refreshUniformsMatcap(uniforms, material) {
		if (material.matcap) {
			uniforms.matcap.value = material.matcap;
		}

		if (material.bumpMap) {
			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if (material.side === BackSide) uniforms.bumpScale.value *= -1;
		}

		if (material.normalMap) {
			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy(material.normalScale);
			if (material.side === BackSide) uniforms.normalScale.value.negate();
		}

		if (material.displacementMap) {
			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;
		}
	}

	function refreshUniformsDepth(uniforms, material) {
		if (material.displacementMap) {
			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;
		}
	}

	function refreshUniformsDistance(uniforms, material) {
		if (material.displacementMap) {
			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;
		}

		uniforms.referencePosition.value.copy(material.referencePosition);
		uniforms.nearDistance.value = material.nearDistance;
		uniforms.farDistance.value = material.farDistance;
	}

	function refreshUniformsNormal(uniforms, material) {
		if (material.bumpMap) {
			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if (material.side === BackSide) uniforms.bumpScale.value *= -1;
		}

		if (material.normalMap) {
			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy(material.normalScale);
			if (material.side === BackSide) uniforms.normalScale.value.negate();
		}

		if (material.displacementMap) {
			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;
		}
	}

	return {
		refreshFogUniforms: refreshFogUniforms,
		refreshMaterialUniforms: refreshMaterialUniforms
	};
}

function createCanvasElement() {
	const canvas = createElementNS('canvas');
	canvas.style.display = 'block';
	return canvas;
}

function WebGLRenderer(parameters = {}) {
	const _canvas = parameters.canvas !== undefined ? parameters.canvas : createCanvasElement(),
				_context = parameters.context !== undefined ? parameters.context : null,
				_alpha = parameters.alpha !== undefined ? parameters.alpha : false,
				_depth = parameters.depth !== undefined ? parameters.depth : true,
				_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
				_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
				_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
				_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,
				_powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default',
				_failIfMajorPerformanceCaveat = parameters.failIfMajorPerformanceCaveat !== undefined ? parameters.failIfMajorPerformanceCaveat : false;

	let currentRenderList = null;
	let currentRenderState = null; // render() can be called from within a callback triggered by another render.
	// We track this so that the nested render call gets its list and state isolated from the parent render call.

	const renderListStack = [];
	const renderStateStack = []; // public properties

	this.domElement = _canvas; // Debug configuration container

	this.debug = {
		/**
		 * Enables error checking and reporting when shader programs are being compiled
		 * @type {boolean}
		 */
		checkShaderErrors: true
	}; // clearing

	this.autoClear = true;
	this.autoClearColor = true;
	this.autoClearDepth = true;
	this.autoClearStencil = true; // scene graph

	this.sortObjects = true; // user-defined clipping

	this.clippingPlanes = [];
	this.localClippingEnabled = false; // physically based shading

	this.outputEncoding = LinearEncoding; // physical lights

	this.physicallyCorrectLights = false; // tone mapping

	this.toneMapping = NoToneMapping;
	this.toneMappingExposure = 1.0; // internal properties

	const _this = this;

	let _isContextLost = false; // internal state cache

	let _currentActiveCubeFace = 0;
	let _currentActiveMipmapLevel = 0;
	let _currentRenderTarget = null;

	let _currentMaterialId = -1;

	let _currentCamera = null;

	const _currentViewport = new Vector4();

	const _currentScissor = new Vector4();

	let _currentScissorTest = null; //

	let _width = _canvas.width;
	let _height = _canvas.height;
	let _pixelRatio = 1;
	let _opaqueSort = null;
	let _transparentSort = null;

	const _viewport = new Vector4(0, 0, _width, _height);

	const _scissor = new Vector4(0, 0, _width, _height);

	let _scissorTest = false; // frustum

	const _frustum = new Frustum(); // clipping


	let _clippingEnabled = false;
	let _localClippingEnabled = false; // transmission

	let _transmissionRenderTarget = null; // camera matrices cache

	const _projScreenMatrix = new Matrix4();

	const _vector3 = new Vector3();

	const _emptyScene = {
		background: null,
		fog: null,
		environment: null,
		overrideMaterial: null,
		isScene: true
	};

	function getTargetPixelRatio() {
		return _currentRenderTarget === null ? _pixelRatio : 1;
	} // initialize


	let _gl = _context;

	function getContext(contextNames, contextAttributes) {
		for (let i = 0; i < contextNames.length; i++) {
			const contextName = contextNames[i];

			const context = _canvas.getContext(contextName, contextAttributes);

			if (context !== null) return context;
		}

		return null;
	}

	try {
		const contextAttributes = {
			alpha: true,
			depth: _depth,
			stencil: _stencil,
			antialias: _antialias,
			premultipliedAlpha: _premultipliedAlpha,
			preserveDrawingBuffer: _preserveDrawingBuffer,
			powerPreference: _powerPreference,
			failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat
		}; // OffscreenCanvas does not have setAttribute, see #22811

		if ('setAttribute' in _canvas) _canvas.setAttribute('data-engine', `three.js r${REVISION}`); // event listeners must be registered before WebGL context is created, see #12753

		_canvas.addEventListener('webglcontextlost', onContextLost, false);

		_canvas.addEventListener('webglcontextrestored', onContextRestore, false);

		if (_gl === null) {
			const contextNames = ['webgl2', 'webgl', 'experimental-webgl'];

			if (_this.isWebGL1Renderer === true) {
				contextNames.shift();
			}

			_gl = getContext(contextNames, contextAttributes);

			if (_gl === null) {
				if (getContext(contextNames)) {
					throw new Error('Error creating WebGL context with your selected attributes.');
				} else {
					throw new Error('Error creating WebGL context.');
				}
			}
		} // Some experimental-webgl implementations do not have getShaderPrecisionFormat


		if (_gl.getShaderPrecisionFormat === undefined) {
			_gl.getShaderPrecisionFormat = function () {
				return {
					'rangeMin': 1,
					'rangeMax': 1,
					'precision': 1
				};
			};
		}
	} catch (error) {
		console.error('THREE.WebGLRenderer: ' + error.message);
		throw error;
	}

	let extensions, capabilities, state, info;
	let properties, textures, cubemaps, cubeuvmaps, attributes, geometries, objects;
	let programCache, materials, renderLists, renderStates, clipping, shadowMap;
	let background, morphtargets, bufferRenderer, indexedBufferRenderer;
	let utils, bindingStates;

	function initGLContext() {
		extensions = new WebGLExtensions(_gl);
		capabilities = new WebGLCapabilities(_gl, extensions, parameters);
		extensions.init(capabilities);
		utils = new WebGLUtils(_gl, extensions, capabilities);
		state = new WebGLState(_gl, extensions, capabilities);
		info = new WebGLInfo(_gl);
		properties = new WebGLProperties();
		textures = new WebGLTextures(_gl, extensions, state, properties, capabilities, utils, info);
		cubemaps = new WebGLCubeMaps(_this);
		cubeuvmaps = new WebGLCubeUVMaps(_this);
		attributes = new WebGLAttributes(_gl, capabilities);
		bindingStates = new WebGLBindingStates(_gl, extensions, attributes, capabilities);
		geometries = new WebGLGeometries(_gl, attributes, info, bindingStates);
		objects = new WebGLObjects(_gl, geometries, attributes, info);
		morphtargets = new WebGLMorphtargets(_gl, capabilities, textures);
		clipping = new WebGLClipping(properties);
		programCache = new WebGLPrograms(_this, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping);
		materials = new WebGLMaterials(properties);
		renderLists = new WebGLRenderLists();
		renderStates = new WebGLRenderStates(extensions, capabilities);
		background = new WebGLBackground(_this, cubemaps, state, objects, _alpha, _premultipliedAlpha);
		shadowMap = new WebGLShadowMap(_this, objects, capabilities);
		bufferRenderer = new WebGLBufferRenderer(_gl, extensions, info, capabilities);
		indexedBufferRenderer = new WebGLIndexedBufferRenderer(_gl, extensions, info, capabilities);
		info.programs = programCache.programs;
		_this.capabilities = capabilities;
		_this.extensions = extensions;
		_this.properties = properties;
		_this.renderLists = renderLists;
		_this.shadowMap = shadowMap;
		_this.state = state;
		_this.info = info;
	}

	initGLContext(); // xr

	const xr = new WebXRManager(_this, _gl);
	this.xr = xr; // API

	this.getContext = function () {
		return _gl;
	};

	this.getContextAttributes = function () {
		return _gl.getContextAttributes();
	};

	this.forceContextLoss = function () {
		const extension = extensions.get('WEBGL_lose_context');
		if (extension) extension.loseContext();
	};

	this.forceContextRestore = function () {
		const extension = extensions.get('WEBGL_lose_context');
		if (extension) extension.restoreContext();
	};

	this.getPixelRatio = function () {
		return _pixelRatio;
	};

	this.setPixelRatio = function (value) {
		if (value === undefined) return;
		_pixelRatio = value;
		this.setSize(_width, _height, false);
	};

	this.getSize = function (target) {
		return target.set(_width, _height);
	};

	this.setSize = function (width, height, updateStyle) {
		if (xr.isPresenting) {
			console.warn('THREE.WebGLRenderer: Can\'t change size while VR device is presenting.');
			return;
		}

		_width = width;
		_height = height;
		_canvas.width = Math.floor(width * _pixelRatio);
		_canvas.height = Math.floor(height * _pixelRatio);

		if (updateStyle !== false) {
			_canvas.style.width = width + 'px';
			_canvas.style.height = height + 'px';
		}

		this.setViewport(0, 0, width, height);
	};

	this.getDrawingBufferSize = function (target) {
		return target.set(_width * _pixelRatio, _height * _pixelRatio).floor();
	};

	this.setDrawingBufferSize = function (width, height, pixelRatio) {
		_width = width;
		_height = height;
		_pixelRatio = pixelRatio;
		_canvas.width = Math.floor(width * pixelRatio);
		_canvas.height = Math.floor(height * pixelRatio);
		this.setViewport(0, 0, width, height);
	};

	this.getCurrentViewport = function (target) {
		return target.copy(_currentViewport);
	};

	this.getViewport = function (target) {
		return target.copy(_viewport);
	};

	this.setViewport = function (x, y, width, height) {
		if (x.isVector4) {
			_viewport.set(x.x, x.y, x.z, x.w);
		} else {
			_viewport.set(x, y, width, height);
		}

		state.viewport(_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor());
	};

	this.getScissor = function (target) {
		return target.copy(_scissor);
	};

	this.setScissor = function (x, y, width, height) {
		if (x.isVector4) {
			_scissor.set(x.x, x.y, x.z, x.w);
		} else {
			_scissor.set(x, y, width, height);
		}

		state.scissor(_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor());
	};

	this.getScissorTest = function () {
		return _scissorTest;
	};

	this.setScissorTest = function (boolean) {
		state.setScissorTest(_scissorTest = boolean);
	};

	this.setOpaqueSort = function (method) {
		_opaqueSort = method;
	};

	this.setTransparentSort = function (method) {
		_transparentSort = method;
	}; // Clearing


	this.getClearColor = function (target) {
		return target.copy(background.getClearColor());
	};

	this.setClearColor = function () {
		background.setClearColor.apply(background, arguments);
	};

	this.getClearAlpha = function () {
		return background.getClearAlpha();
	};

	this.setClearAlpha = function () {
		background.setClearAlpha.apply(background, arguments);
	};

	this.clear = function (color, depth, stencil) {
		let bits = 0;
		if (color === undefined || color) bits |= _gl.COLOR_BUFFER_BIT;
		if (depth === undefined || depth) bits |= _gl.DEPTH_BUFFER_BIT;
		if (stencil === undefined || stencil) bits |= _gl.STENCIL_BUFFER_BIT;

		_gl.clear(bits);
	};

	this.clearColor = function () {
		this.clear(true, false, false);
	};

	this.clearDepth = function () {
		this.clear(false, true, false);
	};

	this.clearStencil = function () {
		this.clear(false, false, true);
	}; //


	this.dispose = function () {
		_canvas.removeEventListener('webglcontextlost', onContextLost, false);

		_canvas.removeEventListener('webglcontextrestored', onContextRestore, false);

		renderLists.dispose();
		renderStates.dispose();
		properties.dispose();
		cubemaps.dispose();
		cubeuvmaps.dispose();
		objects.dispose();
		bindingStates.dispose();
		programCache.dispose();
		xr.dispose();
		xr.removeEventListener('sessionstart', onXRSessionStart);
		xr.removeEventListener('sessionend', onXRSessionEnd);

		if (_transmissionRenderTarget) {
			_transmissionRenderTarget.dispose();

			_transmissionRenderTarget = null;
		}

		animation.stop();
	}; // Events


	function onContextLost(event) {
		event.preventDefault();
		console.log('THREE.WebGLRenderer: Context Lost.');
		_isContextLost = true;
	}

	function
		/* event */
	onContextRestore() {
		console.log('THREE.WebGLRenderer: Context Restored.');
		_isContextLost = false;
		const infoAutoReset = info.autoReset;
		const shadowMapEnabled = shadowMap.enabled;
		const shadowMapAutoUpdate = shadowMap.autoUpdate;
		const shadowMapNeedsUpdate = shadowMap.needsUpdate;
		const shadowMapType = shadowMap.type;
		initGLContext();
		info.autoReset = infoAutoReset;
		shadowMap.enabled = shadowMapEnabled;
		shadowMap.autoUpdate = shadowMapAutoUpdate;
		shadowMap.needsUpdate = shadowMapNeedsUpdate;
		shadowMap.type = shadowMapType;
	}

	function onMaterialDispose(event) {
		const material = event.target;
		material.removeEventListener('dispose', onMaterialDispose);
		deallocateMaterial(material);
	} // Buffer deallocation


	function deallocateMaterial(material) {
		releaseMaterialProgramReferences(material);
		properties.remove(material);
	}

	function releaseMaterialProgramReferences(material) {
		const programs = properties.get(material).programs;

		if (programs !== undefined) {
			programs.forEach(function (program) {
				programCache.releaseProgram(program);
			});

			if (material.isShaderMaterial) {
				programCache.releaseShaderCache(material);
			}
		}
	} // Buffer rendering


	this.renderBufferDirect = function (camera, scene, geometry, material, object, group) {
		if (scene === null) scene = _emptyScene; // renderBufferDirect second parameter used to be fog (could be null)

		const frontFaceCW = object.isMesh && object.matrixWorld.determinant() < 0;
		const program = setProgram(camera, scene, geometry, material, object);
		state.setMaterial(material, frontFaceCW); //

		let index = geometry.index;
		const position = geometry.attributes.position; //

		if (index === null) {
			if (position === undefined || position.count === 0) return;
		} else if (index.count === 0) {
			return;
		} //


		let rangeFactor = 1;

		if (material.wireframe === true) {
			index = geometries.getWireframeAttribute(geometry);
			rangeFactor = 2;
		}

		bindingStates.setup(object, material, program, geometry, index);
		let attribute;
		let renderer = bufferRenderer;

		if (index !== null) {
			attribute = attributes.get(index);
			renderer = indexedBufferRenderer;
			renderer.setIndex(attribute);
		} //


		const dataCount = index !== null ? index.count : position.count;
		const rangeStart = geometry.drawRange.start * rangeFactor;
		const rangeCount = geometry.drawRange.count * rangeFactor;
		const groupStart = group !== null ? group.start * rangeFactor : 0;
		const groupCount = group !== null ? group.count * rangeFactor : Infinity;
		const drawStart = Math.max(rangeStart, groupStart);
		const drawEnd = Math.min(dataCount, rangeStart + rangeCount, groupStart + groupCount) - 1;
		const drawCount = Math.max(0, drawEnd - drawStart + 1);
		if (drawCount === 0) return; //

		if (object.isMesh) {
			if (material.wireframe === true) {
				state.setLineWidth(material.wireframeLinewidth * getTargetPixelRatio());
				renderer.setMode(_gl.LINES);
			} else {
				renderer.setMode(_gl.TRIANGLES);
			}
		} else if (object.isLine) {
			let lineWidth = material.linewidth;
			if (lineWidth === undefined) lineWidth = 1; // Not using Line*Material

			state.setLineWidth(lineWidth * getTargetPixelRatio());

			if (object.isLineSegments) {
				renderer.setMode(_gl.LINES);
			} else if (object.isLineLoop) {
				renderer.setMode(_gl.LINE_LOOP);
			} else {
				renderer.setMode(_gl.LINE_STRIP);
			}
		} else if (object.isPoints) {
			renderer.setMode(_gl.POINTS);
		} else if (object.isSprite) {
			renderer.setMode(_gl.TRIANGLES);
		}

		if (object.isInstancedMesh) {
			renderer.renderInstances(drawStart, drawCount, object.count);
		} else if (geometry.isInstancedBufferGeometry) {
			const instanceCount = Math.min(geometry.instanceCount, geometry._maxInstanceCount);
			renderer.renderInstances(drawStart, drawCount, instanceCount);
		} else {
			renderer.render(drawStart, drawCount);
		}
	}; // Compile


	this.compile = function (scene, camera) {
		currentRenderState = renderStates.get(scene);
		currentRenderState.init();
		renderStateStack.push(currentRenderState);
		scene.traverseVisible(function (object) {
			if (object.isLight && object.layers.test(camera.layers)) {
				currentRenderState.pushLight(object);

				if (object.castShadow) {
					currentRenderState.pushShadow(object);
				}
			}
		});
		currentRenderState.setupLights(_this.physicallyCorrectLights);
		scene.traverse(function (object) {
			const material = object.material;

			if (material) {
				if (Array.isArray(material)) {
					for (let i = 0; i < material.length; i++) {
						const material2 = material[i];
						getProgram(material2, scene, object);
					}
				} else {
					getProgram(material, scene, object);
				}
			}
		});
		renderStateStack.pop();
		currentRenderState = null;
	}; // Animation Loop


	let onAnimationFrameCallback = null;

	function onAnimationFrame(time) {
		if (onAnimationFrameCallback) onAnimationFrameCallback(time);
	}

	function onXRSessionStart() {
		animation.stop();
	}

	function onXRSessionEnd() {
		animation.start();
	}

	const animation = new WebGLAnimation();
	animation.setAnimationLoop(onAnimationFrame);
	if (typeof window !== 'undefined') animation.setContext(window);

	this.setAnimationLoop = function (callback) {
		onAnimationFrameCallback = callback;
		xr.setAnimationLoop(callback);
		callback === null ? animation.stop() : animation.start();
	};

	xr.addEventListener('sessionstart', onXRSessionStart);
	xr.addEventListener('sessionend', onXRSessionEnd); // Rendering

	this.render = function (scene, camera) {
		if (camera !== undefined && camera.isCamera !== true) {
			console.error('THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.');
			return;
		}

		if (_isContextLost === true) return; // update scene graph

		if (scene.autoUpdate === true) scene.updateMatrixWorld(); // update camera matrices and frustum

		if (camera.parent === null) camera.updateMatrixWorld();

		if (xr.enabled === true && xr.isPresenting === true) {
			if (xr.cameraAutoUpdate === true) xr.updateCamera(camera);
			camera = xr.getCamera(); // use XR camera for rendering
		} //


		if (scene.isScene === true) scene.onBeforeRender(_this, scene, camera, _currentRenderTarget);
		currentRenderState = renderStates.get(scene, renderStateStack.length);
		currentRenderState.init();
		renderStateStack.push(currentRenderState);

		_projScreenMatrix.multiplyMatrices(camera.projectionMatrix, camera.matrixWorldInverse);

		_frustum.setFromProjectionMatrix(_projScreenMatrix);

		_localClippingEnabled = this.localClippingEnabled;
		_clippingEnabled = clipping.init(this.clippingPlanes, _localClippingEnabled, camera);
		currentRenderList = renderLists.get(scene, renderListStack.length);
		currentRenderList.init();
		renderListStack.push(currentRenderList);
		projectObject(scene, camera, 0, _this.sortObjects);
		currentRenderList.finish();

		if (_this.sortObjects === true) {
			currentRenderList.sort(_opaqueSort, _transparentSort);
		} //


		if (_clippingEnabled === true) clipping.beginShadows();
		const shadowsArray = currentRenderState.state.shadowsArray;
		shadowMap.render(shadowsArray, scene, camera);
		if (_clippingEnabled === true) clipping.endShadows(); //

		if (this.info.autoReset === true) this.info.reset(); //

		background.render(currentRenderList, scene); // render scene

		currentRenderState.setupLights(_this.physicallyCorrectLights);

		if (camera.isArrayCamera) {
			const cameras = camera.cameras;

			for (let i = 0, l = cameras.length; i < l; i++) {
				const camera2 = cameras[i];
				renderScene(currentRenderList, scene, camera2, camera2.viewport);
			}
		} else {
			renderScene(currentRenderList, scene, camera);
		} //


		if (_currentRenderTarget !== null) {
			// resolve multisample renderbuffers to a single-sample texture if necessary
			textures.updateMultisampleRenderTarget(_currentRenderTarget); // Generate mipmap if we're using any kind of mipmap filtering

			textures.updateRenderTargetMipmap(_currentRenderTarget);
		} //


		if (scene.isScene === true) scene.onAfterRender(_this, scene, camera); // Ensure depth buffer writing is enabled so it can be cleared on next render

		state.buffers.depth.setTest(true);
		state.buffers.depth.setMask(true);
		state.buffers.color.setMask(true);
		state.setPolygonOffset(false); // _gl.finish();

		bindingStates.resetDefaultState();
		_currentMaterialId = -1;
		_currentCamera = null;
		renderStateStack.pop();

		if (renderStateStack.length > 0) {
			currentRenderState = renderStateStack[renderStateStack.length - 1];
		} else {
			currentRenderState = null;
		}

		renderListStack.pop();

		if (renderListStack.length > 0) {
			currentRenderList = renderListStack[renderListStack.length - 1];
		} else {
			currentRenderList = null;
		}
	};

	function projectObject(object, camera, groupOrder, sortObjects) {
		if (object.visible === false) return;
		const visible = object.layers.test(camera.layers);

		if (visible) {
			if (object.isGroup) {
				groupOrder = object.renderOrder;
			} else if (object.isLOD) {
				if (object.autoUpdate === true) object.update(camera);
			} else if (object.isLight) {
				currentRenderState.pushLight(object);

				if (object.castShadow) {
					currentRenderState.pushShadow(object);
				}
			} else if (object.isSprite) {
				if (!object.frustumCulled || _frustum.intersectsSprite(object)) {
					if (sortObjects) {
						_vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);
					}

					const geometry = objects.update(object);
					const material = object.material;

					if (material.visible) {
						currentRenderList.push(object, geometry, material, groupOrder, _vector3.z, null);
					}
				}
			} else if (object.isMesh || object.isLine || object.isPoints) {
				if (object.isSkinnedMesh) {
					// update skeleton only once in a frame
					if (object.skeleton.frame !== info.render.frame) {
						object.skeleton.update();
						object.skeleton.frame = info.render.frame;
					}
				}

				if (!object.frustumCulled || _frustum.intersectsObject(object)) {
					if (sortObjects) {
						_vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);
					}

					const geometry = objects.update(object);
					const material = object.material;

					if (Array.isArray(material)) {
						const groups = geometry.groups;

						for (let i = 0, l = groups.length; i < l; i++) {
							const group = groups[i];
							const groupMaterial = material[group.materialIndex];

							if (groupMaterial && groupMaterial.visible) {
								currentRenderList.push(object, geometry, groupMaterial, groupOrder, _vector3.z, group);
							}
						}
					} else if (material.visible) {
						currentRenderList.push(object, geometry, material, groupOrder, _vector3.z, null);
					}
				}
			}
		}

		const children = object.children;

		for (let i = 0, l = children.length; i < l; i++) {
			projectObject(children[i], camera, groupOrder, sortObjects);
		}
	}

	function renderScene(currentRenderList, scene, camera, viewport) {
		const opaqueObjects = currentRenderList.opaque;
		const transmissiveObjects = currentRenderList.transmissive;
		const transparentObjects = currentRenderList.transparent;
		currentRenderState.setupLightsView(camera);
		if (transmissiveObjects.length > 0) renderTransmissionPass(opaqueObjects, scene, camera);
		if (viewport) state.viewport(_currentViewport.copy(viewport));
		if (opaqueObjects.length > 0) renderObjects(opaqueObjects, scene, camera);
		if (transmissiveObjects.length > 0) renderObjects(transmissiveObjects, scene, camera);
		if (transparentObjects.length > 0) renderObjects(transparentObjects, scene, camera);
	}

	function renderTransmissionPass(opaqueObjects, scene, camera) {
		if (_transmissionRenderTarget === null) {
			const needsAntialias = _antialias === true && capabilities.isWebGL2 === true;
			const renderTargetType = needsAntialias ? WebGLMultisampleRenderTarget : WebGLRenderTarget;
			_transmissionRenderTarget = new renderTargetType(1024, 1024, {
				generateMipmaps: true,
				type: utils.convert(HalfFloatType) !== null ? HalfFloatType : UnsignedByteType,
				minFilter: LinearMipmapLinearFilter,
				magFilter: NearestFilter,
				wrapS: ClampToEdgeWrapping,
				wrapT: ClampToEdgeWrapping,
				useRenderToTexture: extensions.has('WEBGL_multisampled_render_to_texture')
			});
		}

		const currentRenderTarget = _this.getRenderTarget();

		_this.setRenderTarget(_transmissionRenderTarget);

		_this.clear(); // Turn off the features which can affect the frag color for opaque objects pass.
		// Otherwise they are applied twice in opaque objects pass and transmission objects pass.


		const currentToneMapping = _this.toneMapping;
		_this.toneMapping = NoToneMapping;
		renderObjects(opaqueObjects, scene, camera);
		_this.toneMapping = currentToneMapping;
		textures.updateMultisampleRenderTarget(_transmissionRenderTarget);
		textures.updateRenderTargetMipmap(_transmissionRenderTarget);

		_this.setRenderTarget(currentRenderTarget);
	}

	function renderObjects(renderList, scene, camera) {
		const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null;

		for (let i = 0, l = renderList.length; i < l; i++) {
			const renderItem = renderList[i];
			const object = renderItem.object;
			const geometry = renderItem.geometry;
			const material = overrideMaterial === null ? renderItem.material : overrideMaterial;
			const group = renderItem.group;

			if (object.layers.test(camera.layers)) {
				renderObject(object, scene, camera, geometry, material, group);
			}
		}
	}

	function renderObject(object, scene, camera, geometry, material, group) {
		object.onBeforeRender(_this, scene, camera, geometry, material, group);
		object.modelViewMatrix.multiplyMatrices(camera.matrixWorldInverse, object.matrixWorld);
		object.normalMatrix.getNormalMatrix(object.modelViewMatrix);
		material.onBeforeRender(_this, scene, camera, geometry, object, group);

		if (material.transparent === true && material.side === DoubleSide) {
			material.side = BackSide;
			material.needsUpdate = true;

			_this.renderBufferDirect(camera, scene, geometry, material, object, group);

			material.side = FrontSide;
			material.needsUpdate = true;

			_this.renderBufferDirect(camera, scene, geometry, material, object, group);

			material.side = DoubleSide;
		} else {
			_this.renderBufferDirect(camera, scene, geometry, material, object, group);
		}

		object.onAfterRender(_this, scene, camera, geometry, material, group);
	}

	function getProgram(material, scene, object) {
		if (scene.isScene !== true) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...

		const materialProperties = properties.get(material);
		const lights = currentRenderState.state.lights;
		const shadowsArray = currentRenderState.state.shadowsArray;
		const lightsStateVersion = lights.state.version;
		const parameters = programCache.getParameters(material, lights.state, shadowsArray, scene, object);
		const programCacheKey = programCache.getProgramCacheKey(parameters);
		let programs = materialProperties.programs; // always update environment and fog - changing these trigger an getProgram call, but it's possible that the program doesn't change

		materialProperties.environment = material.isMeshStandardMaterial ? scene.environment : null;
		materialProperties.fog = scene.fog;
		materialProperties.envMap = (material.isMeshStandardMaterial ? cubeuvmaps : cubemaps).get(material.envMap || materialProperties.environment);

		if (programs === undefined) {
			// new material
			material.addEventListener('dispose', onMaterialDispose);
			programs = new Map();
			materialProperties.programs = programs;
		}

		let program = programs.get(programCacheKey);

		if (program !== undefined) {
			// early out if program and light state is identical
			if (materialProperties.currentProgram === program && materialProperties.lightsStateVersion === lightsStateVersion) {
				updateCommonMaterialProperties(material, parameters);
				return program;
			}
		} else {
			parameters.uniforms = programCache.getUniforms(material);
			material.onBuild(object, parameters, _this);
			material.onBeforeCompile(parameters, _this);
			program = programCache.acquireProgram(parameters, programCacheKey);
			programs.set(programCacheKey, program);
			materialProperties.uniforms = parameters.uniforms;
		}

		const uniforms = materialProperties.uniforms;

		if (!material.isShaderMaterial && !material.isRawShaderMaterial || material.clipping === true) {
			uniforms.clippingPlanes = clipping.uniform;
		}

		updateCommonMaterialProperties(material, parameters); // store the light setup it was created for

		materialProperties.needsLights = materialNeedsLights(material);
		materialProperties.lightsStateVersion = lightsStateVersion;

		if (materialProperties.needsLights) {
			// wire up the material to this renderer's lighting state
			uniforms.ambientLightColor.value = lights.state.ambient;
			uniforms.lightProbe.value = lights.state.probe;
			uniforms.directionalLights.value = lights.state.directional;
			uniforms.directionalLightShadows.value = lights.state.directionalShadow;
			uniforms.spotLights.value = lights.state.spot;
			uniforms.spotLightShadows.value = lights.state.spotShadow;
			uniforms.rectAreaLights.value = lights.state.rectArea;
			uniforms.ltc_1.value = lights.state.rectAreaLTC1;
			uniforms.ltc_2.value = lights.state.rectAreaLTC2;
			uniforms.pointLights.value = lights.state.point;
			uniforms.pointLightShadows.value = lights.state.pointShadow;
			uniforms.hemisphereLights.value = lights.state.hemi;
			uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
			uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
			uniforms.spotShadowMap.value = lights.state.spotShadowMap;
			uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;
			uniforms.pointShadowMap.value = lights.state.pointShadowMap;
			uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix; // TODO (abelnation): add area lights shadow info to uniforms
		}

		const progUniforms = program.getUniforms();
		const uniformsList = WebGLUniforms.seqWithValue(progUniforms.seq, uniforms);
		materialProperties.currentProgram = program;
		materialProperties.uniformsList = uniformsList;
		return program;
	}

	function updateCommonMaterialProperties(material, parameters) {
		const materialProperties = properties.get(material);
		materialProperties.outputEncoding = parameters.outputEncoding;
		materialProperties.instancing = parameters.instancing;
		materialProperties.skinning = parameters.skinning;
		materialProperties.morphTargets = parameters.morphTargets;
		materialProperties.morphNormals = parameters.morphNormals;
		materialProperties.morphTargetsCount = parameters.morphTargetsCount;
		materialProperties.numClippingPlanes = parameters.numClippingPlanes;
		materialProperties.numIntersection = parameters.numClipIntersection;
		materialProperties.vertexAlphas = parameters.vertexAlphas;
		materialProperties.vertexTangents = parameters.vertexTangents;
		materialProperties.toneMapping = parameters.toneMapping;
	}

	function setProgram(camera, scene, geometry, material, object) {
		if (scene.isScene !== true) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...

		textures.resetTextureUnits();
		const fog = scene.fog;
		const environment = material.isMeshStandardMaterial ? scene.environment : null;
		const encoding = _currentRenderTarget === null ? _this.outputEncoding : _currentRenderTarget.isXRRenderTarget === true ? _currentRenderTarget.texture.encoding : LinearEncoding;
		const envMap = (material.isMeshStandardMaterial ? cubeuvmaps : cubemaps).get(material.envMap || environment);
		const vertexAlphas = material.vertexColors === true && !!geometry.attributes.color && geometry.attributes.color.itemSize === 4;
		const vertexTangents = !!material.normalMap && !!geometry.attributes.tangent;
		const morphTargets = !!geometry.morphAttributes.position;
		const morphNormals = !!geometry.morphAttributes.normal;
		const morphTargetsCount = !!geometry.morphAttributes.position ? geometry.morphAttributes.position.length : 0;
		const toneMapping = material.toneMapped ? _this.toneMapping : NoToneMapping;
		const materialProperties = properties.get(material);
		const lights = currentRenderState.state.lights;

		if (_clippingEnabled === true) {
			if (_localClippingEnabled === true || camera !== _currentCamera) {
				const useCache = camera === _currentCamera && material.id === _currentMaterialId; // we might want to call this function with some ClippingGroup
				// object instead of the material, once it becomes feasible
				// (#8465, #8379)

				clipping.setState(material, camera, useCache);
			}
		} //


		let needsProgramChange = false;

		if (material.version === materialProperties.__version) {
			if (materialProperties.needsLights && materialProperties.lightsStateVersion !== lights.state.version) {
				needsProgramChange = true;
			} else if (materialProperties.outputEncoding !== encoding) {
				needsProgramChange = true;
			} else if (object.isInstancedMesh && materialProperties.instancing === false) {
				needsProgramChange = true;
			} else if (!object.isInstancedMesh && materialProperties.instancing === true) {
				needsProgramChange = true;
			} else if (object.isSkinnedMesh && materialProperties.skinning === false) {
				needsProgramChange = true;
			} else if (!object.isSkinnedMesh && materialProperties.skinning === true) {
				needsProgramChange = true;
			} else if (materialProperties.envMap !== envMap) {
				needsProgramChange = true;
			} else if (material.fog && materialProperties.fog !== fog) {
				needsProgramChange = true;
			} else if (materialProperties.numClippingPlanes !== undefined && (materialProperties.numClippingPlanes !== clipping.numPlanes || materialProperties.numIntersection !== clipping.numIntersection)) {
				needsProgramChange = true;
			} else if (materialProperties.vertexAlphas !== vertexAlphas) {
				needsProgramChange = true;
			} else if (materialProperties.vertexTangents !== vertexTangents) {
				needsProgramChange = true;
			} else if (materialProperties.morphTargets !== morphTargets) {
				needsProgramChange = true;
			} else if (materialProperties.morphNormals !== morphNormals) {
				needsProgramChange = true;
			} else if (materialProperties.toneMapping !== toneMapping) {
				needsProgramChange = true;
			} else if (capabilities.isWebGL2 === true && materialProperties.morphTargetsCount !== morphTargetsCount) {
				needsProgramChange = true;
			}
		} else {
			needsProgramChange = true;
			materialProperties.__version = material.version;
		} //


		let program = materialProperties.currentProgram;

		if (needsProgramChange === true) {
			program = getProgram(material, scene, object);
		}

		let refreshProgram = false;
		let refreshMaterial = false;
		let refreshLights = false;
		const p_uniforms = program.getUniforms(),
					m_uniforms = materialProperties.uniforms;

		if (state.useProgram(program.program)) {
			refreshProgram = true;
			refreshMaterial = true;
			refreshLights = true;
		}

		if (material.id !== _currentMaterialId) {
			_currentMaterialId = material.id;
			refreshMaterial = true;
		}

		if (refreshProgram || _currentCamera !== camera) {
			p_uniforms.setValue(_gl, 'projectionMatrix', camera.projectionMatrix);

			if (capabilities.logarithmicDepthBuffer) {
				p_uniforms.setValue(_gl, 'logDepthBufFC', 2.0 / (Math.log(camera.far + 1.0) / Math.LN2));
			}

			if (_currentCamera !== camera) {
				_currentCamera = camera; // lighting uniforms depend on the camera so enforce an update
				// now, in case this material supports lights - or later, when
				// the next material that does gets activated:

				refreshMaterial = true; // set to true on material change

				refreshLights = true; // remains set until update done
			} // load material specific uniforms
			// (shader material also gets them for the sake of genericity)


			if (material.isShaderMaterial || material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshStandardMaterial || material.envMap) {
				const uCamPos = p_uniforms.map.cameraPosition;

				if (uCamPos !== undefined) {
					uCamPos.setValue(_gl, _vector3.setFromMatrixPosition(camera.matrixWorld));
				}
			}

			if (material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshLambertMaterial || material.isMeshBasicMaterial || material.isMeshStandardMaterial || material.isShaderMaterial) {
				p_uniforms.setValue(_gl, 'isOrthographic', camera.isOrthographicCamera === true);
			}

			if (material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshLambertMaterial || material.isMeshBasicMaterial || material.isMeshStandardMaterial || material.isShaderMaterial || material.isShadowMaterial || object.isSkinnedMesh) {
				p_uniforms.setValue(_gl, 'viewMatrix', camera.matrixWorldInverse);
			}
		} // skinning and morph target uniforms must be set even if material didn't change
		// auto-setting of texture unit for bone and morph texture must go before other textures
		// otherwise textures used for skinning and morphing can take over texture units reserved for other material textures


		if (object.isSkinnedMesh) {
			p_uniforms.setOptional(_gl, object, 'bindMatrix');
			p_uniforms.setOptional(_gl, object, 'bindMatrixInverse');
			const skeleton = object.skeleton;

			if (skeleton) {
				if (capabilities.floatVertexTextures) {
					if (skeleton.boneTexture === null) skeleton.computeBoneTexture();
					p_uniforms.setValue(_gl, 'boneTexture', skeleton.boneTexture, textures);
					p_uniforms.setValue(_gl, 'boneTextureSize', skeleton.boneTextureSize);
				} else {
					p_uniforms.setOptional(_gl, skeleton, 'boneMatrices');
				}
			}
		}

		if (!!geometry && (geometry.morphAttributes.position !== undefined || geometry.morphAttributes.normal !== undefined)) {
			morphtargets.update(object, geometry, material, program);
		}

		if (refreshMaterial || materialProperties.receiveShadow !== object.receiveShadow) {
			materialProperties.receiveShadow = object.receiveShadow;
			p_uniforms.setValue(_gl, 'receiveShadow', object.receiveShadow);
		}

		if (refreshMaterial) {
			p_uniforms.setValue(_gl, 'toneMappingExposure', _this.toneMappingExposure);

			if (materialProperties.needsLights) {
				// the current material requires lighting info
				// note: all lighting uniforms are always set correctly
				// they simply reference the renderer's state for their
				// values
				//
				// use the current material's .needsUpdate flags to set
				// the GL state when required
				markUniformsLightsNeedsUpdate(m_uniforms, refreshLights);
			} // refresh uniforms common to several materials


			if (fog && material.fog) {
				materials.refreshFogUniforms(m_uniforms, fog);
			}

			materials.refreshMaterialUniforms(m_uniforms, material, _pixelRatio, _height, _transmissionRenderTarget);
			WebGLUniforms.upload(_gl, materialProperties.uniformsList, m_uniforms, textures);
		}

		if (material.isShaderMaterial && material.uniformsNeedUpdate === true) {
			WebGLUniforms.upload(_gl, materialProperties.uniformsList, m_uniforms, textures);
			material.uniformsNeedUpdate = false;
		}

		if (material.isSpriteMaterial) {
			p_uniforms.setValue(_gl, 'center', object.center);
		} // common matrices


		p_uniforms.setValue(_gl, 'modelViewMatrix', object.modelViewMatrix);
		p_uniforms.setValue(_gl, 'normalMatrix', object.normalMatrix);
		p_uniforms.setValue(_gl, 'modelMatrix', object.matrixWorld);
		return program;
	} // If uniforms are marked as clean, they don't need to be loaded to the GPU.


	function markUniformsLightsNeedsUpdate(uniforms, value) {
		uniforms.ambientLightColor.needsUpdate = value;
		uniforms.lightProbe.needsUpdate = value;
		uniforms.directionalLights.needsUpdate = value;
		uniforms.directionalLightShadows.needsUpdate = value;
		uniforms.pointLights.needsUpdate = value;
		uniforms.pointLightShadows.needsUpdate = value;
		uniforms.spotLights.needsUpdate = value;
		uniforms.spotLightShadows.needsUpdate = value;
		uniforms.rectAreaLights.needsUpdate = value;
		uniforms.hemisphereLights.needsUpdate = value;
	}

	function materialNeedsLights(material) {
		return material.isMeshLambertMaterial || material.isMeshToonMaterial || material.isMeshPhongMaterial || material.isMeshStandardMaterial || material.isShadowMaterial || material.isShaderMaterial && material.lights === true;
	}

	this.getActiveCubeFace = function () {
		return _currentActiveCubeFace;
	};

	this.getActiveMipmapLevel = function () {
		return _currentActiveMipmapLevel;
	};

	this.getRenderTarget = function () {
		return _currentRenderTarget;
	};

	this.setRenderTargetTextures = function (renderTarget, colorTexture, depthTexture) {
		properties.get(renderTarget.texture).__webglTexture = colorTexture;
		properties.get(renderTarget.depthTexture).__webglTexture = depthTexture;
		const renderTargetProperties = properties.get(renderTarget);
		renderTargetProperties.__hasExternalTextures = true;

		if (renderTargetProperties.__hasExternalTextures) {
			renderTargetProperties.__autoAllocateDepthBuffer = depthTexture === undefined;

			if (!renderTargetProperties.__autoAllocateDepthBuffer) {
				// The multisample_render_to_texture extension doesn't work properly if there
				// are midframe flushes and an external depth buffer. Disable use of the extension.
				if (renderTarget.useRenderToTexture) {
					console.warn('render-to-texture extension was disabled because an external texture was provided');
					renderTarget.useRenderToTexture = false;
					renderTarget.useRenderbuffer = true;
				}
			}
		}
	};

	this.setRenderTargetFramebuffer = function (renderTarget, defaultFramebuffer) {
		const renderTargetProperties = properties.get(renderTarget);
		renderTargetProperties.__webglFramebuffer = defaultFramebuffer;
		renderTargetProperties.__useDefaultFramebuffer = defaultFramebuffer === undefined;
	};

	this.setRenderTarget = function (renderTarget, activeCubeFace = 0, activeMipmapLevel = 0) {
		_currentRenderTarget = renderTarget;
		_currentActiveCubeFace = activeCubeFace;
		_currentActiveMipmapLevel = activeMipmapLevel;
		let useDefaultFramebuffer = true;

		if (renderTarget) {
			const renderTargetProperties = properties.get(renderTarget);

			if (renderTargetProperties.__useDefaultFramebuffer !== undefined) {
				// We need to make sure to rebind the framebuffer.
				state.bindFramebuffer(_gl.FRAMEBUFFER, null);
				useDefaultFramebuffer = false;
			} else if (renderTargetProperties.__webglFramebuffer === undefined) {
				textures.setupRenderTarget(renderTarget);
			} else if (renderTargetProperties.__hasExternalTextures) {
				// Color and depth texture must be rebound in order for the swapchain to update.
				textures.rebindTextures(renderTarget, properties.get(renderTarget.texture).__webglTexture, properties.get(renderTarget.depthTexture).__webglTexture);
			}
		}

		let framebuffer = null;
		let isCube = false;
		let isRenderTarget3D = false;

		if (renderTarget) {
			const texture = renderTarget.texture;

			if (texture.isDataTexture3D || texture.isDataTexture2DArray) {
				isRenderTarget3D = true;
			}

			const __webglFramebuffer = properties.get(renderTarget).__webglFramebuffer;

			if (renderTarget.isWebGLCubeRenderTarget) {
				framebuffer = __webglFramebuffer[activeCubeFace];
				isCube = true;
			} else if (renderTarget.useRenderbuffer) {
				framebuffer = properties.get(renderTarget).__webglMultisampledFramebuffer;
			} else {
				framebuffer = __webglFramebuffer;
			}

			_currentViewport.copy(renderTarget.viewport);

			_currentScissor.copy(renderTarget.scissor);

			_currentScissorTest = renderTarget.scissorTest;
		} else {
			_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor();

			_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor();

			_currentScissorTest = _scissorTest;
		}

		const framebufferBound = state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);

		if (framebufferBound && capabilities.drawBuffers && useDefaultFramebuffer) {
			state.drawBuffers(renderTarget, framebuffer);
		}

		state.viewport(_currentViewport);
		state.scissor(_currentScissor);
		state.setScissorTest(_currentScissorTest);

		if (isCube) {
			const textureProperties = properties.get(renderTarget.texture);

			_gl.framebufferTexture2D(_gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + activeCubeFace, textureProperties.__webglTexture, activeMipmapLevel);
		} else if (isRenderTarget3D) {
			const textureProperties = properties.get(renderTarget.texture);
			const layer = activeCubeFace || 0;

			_gl.framebufferTextureLayer(_gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, textureProperties.__webglTexture, activeMipmapLevel || 0, layer);
		}

		_currentMaterialId = -1; // reset current material to ensure correct uniform bindings
	};

	this.readRenderTargetPixels = function (renderTarget, x, y, width, height, buffer, activeCubeFaceIndex) {
		if (!(renderTarget && renderTarget.isWebGLRenderTarget)) {
			console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.');
			return;
		}

		let framebuffer = properties.get(renderTarget).__webglFramebuffer;

		if (renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== undefined) {
			framebuffer = framebuffer[activeCubeFaceIndex];
		}

		if (framebuffer) {
			state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);

			try {
				const texture = renderTarget.texture;
				const textureFormat = texture.format;
				const textureType = texture.type;

				if (textureFormat !== RGBAFormat && utils.convert(textureFormat) !== _gl.getParameter(_gl.IMPLEMENTATION_COLOR_READ_FORMAT)) {
					console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.');
					return;
				}

				const halfFloatSupportedByExt = textureType === HalfFloatType && (extensions.has('EXT_color_buffer_half_float') || capabilities.isWebGL2 && extensions.has('EXT_color_buffer_float'));

				if (textureType !== UnsignedByteType && utils.convert(textureType) !== _gl.getParameter(_gl.IMPLEMENTATION_COLOR_READ_TYPE) && // Edge and Chrome Mac < 52 (#9513)
				!(textureType === FloatType && (capabilities.isWebGL2 || extensions.has('OES_texture_float') || extensions.has('WEBGL_color_buffer_float'))) && // Chrome Mac >= 52 and Firefox
				!halfFloatSupportedByExt) {
					console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.');
					return;
				}

				if (_gl.checkFramebufferStatus(_gl.FRAMEBUFFER) === _gl.FRAMEBUFFER_COMPLETE) {
					// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)
					if (x >= 0 && x <= renderTarget.width - width && y >= 0 && y <= renderTarget.height - height) {
						_gl.readPixels(x, y, width, height, utils.convert(textureFormat), utils.convert(textureType), buffer);
					}
				} else {
					console.error('THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.');
				}
			} finally {
				// restore framebuffer of current render target if necessary
				const framebuffer = _currentRenderTarget !== null ? properties.get(_currentRenderTarget).__webglFramebuffer : null;
				state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);
			}
		}
	};

	this.copyFramebufferToTexture = function (position, texture, level = 0) {
		if (texture.isFramebufferTexture !== true) {
			console.error('THREE.WebGLRenderer: copyFramebufferToTexture() can only be used with FramebufferTexture.');
			return;
		}

		const levelScale = Math.pow(2, -level);
		const width = Math.floor(texture.image.width * levelScale);
		const height = Math.floor(texture.image.height * levelScale);
		textures.setTexture2D(texture, 0);

		_gl.copyTexSubImage2D(_gl.TEXTURE_2D, level, 0, 0, position.x, position.y, width, height);

		state.unbindTexture();
	};

	this.copyTextureToTexture = function (position, srcTexture, dstTexture, level = 0) {
		const width = srcTexture.image.width;
		const height = srcTexture.image.height;
		const glFormat = utils.convert(dstTexture.format);
		const glType = utils.convert(dstTexture.type);
		textures.setTexture2D(dstTexture, 0); // As another texture upload may have changed pixelStorei
		// parameters, make sure they are correct for the dstTexture

		_gl.pixelStorei(_gl.UNPACK_FLIP_Y_WEBGL, dstTexture.flipY);

		_gl.pixelStorei(_gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, dstTexture.premultiplyAlpha);

		_gl.pixelStorei(_gl.UNPACK_ALIGNMENT, dstTexture.unpackAlignment);

		if (srcTexture.isDataTexture) {
			_gl.texSubImage2D(_gl.TEXTURE_2D, level, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data);
		} else {
			if (srcTexture.isCompressedTexture) {
				_gl.compressedTexSubImage2D(_gl.TEXTURE_2D, level, position.x, position.y, srcTexture.mipmaps[0].width, srcTexture.mipmaps[0].height, glFormat, srcTexture.mipmaps[0].data);
			} else {
				_gl.texSubImage2D(_gl.TEXTURE_2D, level, position.x, position.y, glFormat, glType, srcTexture.image);
			}
		} // Generate mipmaps only when copying level 0


		if (level === 0 && dstTexture.generateMipmaps) _gl.generateMipmap(_gl.TEXTURE_2D);
		state.unbindTexture();
	};

	this.copyTextureToTexture3D = function (sourceBox, position, srcTexture, dstTexture, level = 0) {
		if (_this.isWebGL1Renderer) {
			console.warn('THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.');
			return;
		}

		const width = sourceBox.max.x - sourceBox.min.x + 1;
		const height = sourceBox.max.y - sourceBox.min.y + 1;
		const depth = sourceBox.max.z - sourceBox.min.z + 1;
		const glFormat = utils.convert(dstTexture.format);
		const glType = utils.convert(dstTexture.type);
		let glTarget;

		if (dstTexture.isDataTexture3D) {
			textures.setTexture3D(dstTexture, 0);
			glTarget = _gl.TEXTURE_3D;
		} else if (dstTexture.isDataTexture2DArray) {
			textures.setTexture2DArray(dstTexture, 0);
			glTarget = _gl.TEXTURE_2D_ARRAY;
		} else {
			console.warn('THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.');
			return;
		}

		_gl.pixelStorei(_gl.UNPACK_FLIP_Y_WEBGL, dstTexture.flipY);

		_gl.pixelStorei(_gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, dstTexture.premultiplyAlpha);

		_gl.pixelStorei(_gl.UNPACK_ALIGNMENT, dstTexture.unpackAlignment);

		const unpackRowLen = _gl.getParameter(_gl.UNPACK_ROW_LENGTH);

		const unpackImageHeight = _gl.getParameter(_gl.UNPACK_IMAGE_HEIGHT);

		const unpackSkipPixels = _gl.getParameter(_gl.UNPACK_SKIP_PIXELS);

		const unpackSkipRows = _gl.getParameter(_gl.UNPACK_SKIP_ROWS);

		const unpackSkipImages = _gl.getParameter(_gl.UNPACK_SKIP_IMAGES);

		const image = srcTexture.isCompressedTexture ? srcTexture.mipmaps[0] : srcTexture.image;

		_gl.pixelStorei(_gl.UNPACK_ROW_LENGTH, image.width);

		_gl.pixelStorei(_gl.UNPACK_IMAGE_HEIGHT, image.height);

		_gl.pixelStorei(_gl.UNPACK_SKIP_PIXELS, sourceBox.min.x);

		_gl.pixelStorei(_gl.UNPACK_SKIP_ROWS, sourceBox.min.y);

		_gl.pixelStorei(_gl.UNPACK_SKIP_IMAGES, sourceBox.min.z);

		if (srcTexture.isDataTexture || srcTexture.isDataTexture3D) {
			_gl.texSubImage3D(glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, glType, image.data);
		} else {
			if (srcTexture.isCompressedTexture) {
				console.warn('THREE.WebGLRenderer.copyTextureToTexture3D: untested support for compressed srcTexture.');

				_gl.compressedTexSubImage3D(glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, image.data);
			} else {
				_gl.texSubImage3D(glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, glType, image);
			}
		}

		_gl.pixelStorei(_gl.UNPACK_ROW_LENGTH, unpackRowLen);

		_gl.pixelStorei(_gl.UNPACK_IMAGE_HEIGHT, unpackImageHeight);

		_gl.pixelStorei(_gl.UNPACK_SKIP_PIXELS, unpackSkipPixels);

		_gl.pixelStorei(_gl.UNPACK_SKIP_ROWS, unpackSkipRows);

		_gl.pixelStorei(_gl.UNPACK_SKIP_IMAGES, unpackSkipImages); // Generate mipmaps only when copying level 0


		if (level === 0 && dstTexture.generateMipmaps) _gl.generateMipmap(glTarget);
		state.unbindTexture();
	};

	this.initTexture = function (texture) {
		textures.setTexture2D(texture, 0);
		state.unbindTexture();
	};

	this.resetState = function () {
		_currentActiveCubeFace = 0;
		_currentActiveMipmapLevel = 0;
		_currentRenderTarget = null;
		state.reset();
		bindingStates.reset();
	};

	if (typeof __THREE_DEVTOOLS__ !== 'undefined') {
		__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('observe', {
			detail: this
		}));
	}
}

WebGLRenderer.prototype.isWebGLRenderer = true;

class WebGL1Renderer extends WebGLRenderer {}

WebGL1Renderer.prototype.isWebGL1Renderer = true;

class FogExp2 {
	constructor(color, density = 0.00025) {
		this.name = '';
		this.color = new Color(color);
		this.density = density;
	}

	clone() {
		return new FogExp2(this.color, this.density);
	}

	toJSON() {
		return {
			type: 'FogExp2',
			color: this.color.getHex(),
			density: this.density
		};
	}

}

FogExp2.prototype.isFogExp2 = true;

class Fog {
	constructor(color, near = 1, far = 1000) {
		this.name = '';
		this.color = new Color(color);
		this.near = near;
		this.far = far;
	}

	clone() {
		return new Fog(this.color, this.near, this.far);
	}

	toJSON() {
		return {
			type: 'Fog',
			color: this.color.getHex(),
			near: this.near,
			far: this.far
		};
	}

}

Fog.prototype.isFog = true;

class Scene extends Object3D {
	constructor() {
		super();
		this.type = 'Scene';
		this.background = null;
		this.environment = null;
		this.fog = null;
		this.overrideMaterial = null;
		this.autoUpdate = true; // checked by the renderer

		if (typeof __THREE_DEVTOOLS__ !== 'undefined') {
			__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('observe', {
				detail: this
			}));
		}
	}

	copy(source, recursive) {
		super.copy(source, recursive);
		if (source.background !== null) this.background = source.background.clone();
		if (source.environment !== null) this.environment = source.environment.clone();
		if (source.fog !== null) this.fog = source.fog.clone();
		if (source.overrideMaterial !== null) this.overrideMaterial = source.overrideMaterial.clone();
		this.autoUpdate = source.autoUpdate;
		this.matrixAutoUpdate = source.matrixAutoUpdate;
		return this;
	}

	toJSON(meta) {
		const data = super.toJSON(meta);
		if (this.fog !== null) data.object.fog = this.fog.toJSON();
		return data;
	}

}

Scene.prototype.isScene = true;

class InterleavedBuffer {
	constructor(array, stride) {
		this.array = array;
		this.stride = stride;
		this.count = array !== undefined ? array.length / stride : 0;
		this.usage = StaticDrawUsage;
		this.updateRange = {
			offset: 0,
			count: -1
		};
		this.version = 0;
		this.uuid = generateUUID();
	}

	onUploadCallback() {}

	set needsUpdate(value) {
		if (value === true) this.version++;
	}

	setUsage(value) {
		this.usage = value;
		return this;
	}

	copy(source) {
		this.array = new source.array.constructor(source.array);
		this.count = source.count;
		this.stride = source.stride;
		this.usage = source.usage;
		return this;
	}

	copyAt(index1, attribute, index2) {
		index1 *= this.stride;
		index2 *= attribute.stride;

		for (let i = 0, l = this.stride; i < l; i++) {
			this.array[index1 + i] = attribute.array[index2 + i];
		}

		return this;
	}

	set(value, offset = 0) {
		this.array.set(value, offset);
		return this;
	}

	clone(data) {
		if (data.arrayBuffers === undefined) {
			data.arrayBuffers = {};
		}

		if (this.array.buffer._uuid === undefined) {
			this.array.buffer._uuid = generateUUID();
		}

		if (data.arrayBuffers[this.array.buffer._uuid] === undefined) {
			data.arrayBuffers[this.array.buffer._uuid] = this.array.slice(0).buffer;
		}

		const array = new this.array.constructor(data.arrayBuffers[this.array.buffer._uuid]);
		const ib = new this.constructor(array, this.stride);
		ib.setUsage(this.usage);
		return ib;
	}

	onUpload(callback) {
		this.onUploadCallback = callback;
		return this;
	}

	toJSON(data) {
		if (data.arrayBuffers === undefined) {
			data.arrayBuffers = {};
		} // generate UUID for array buffer if necessary


		if (this.array.buffer._uuid === undefined) {
			this.array.buffer._uuid = generateUUID();
		}

		if (data.arrayBuffers[this.array.buffer._uuid] === undefined) {
			data.arrayBuffers[this.array.buffer._uuid] = Array.prototype.slice.call(new Uint32Array(this.array.buffer));
		} //


		return {
			uuid: this.uuid,
			buffer: this.array.buffer._uuid,
			type: this.array.constructor.name,
			stride: this.stride
		};
	}

}

InterleavedBuffer.prototype.isInterleavedBuffer = true;

const _vector$6 = /*@__PURE__*/new Vector3();

class InterleavedBufferAttribute {
	constructor(interleavedBuffer, itemSize, offset, normalized = false) {
		this.name = '';
		this.data = interleavedBuffer;
		this.itemSize = itemSize;
		this.offset = offset;
		this.normalized = normalized === true;
	}

	get count() {
		return this.data.count;
	}

	get array() {
		return this.data.array;
	}

	set needsUpdate(value) {
		this.data.needsUpdate = value;
	}

	applyMatrix4(m) {
		for (let i = 0, l = this.data.count; i < l; i++) {
			_vector$6.x = this.getX(i);
			_vector$6.y = this.getY(i);
			_vector$6.z = this.getZ(i);

			_vector$6.applyMatrix4(m);

			this.setXYZ(i, _vector$6.x, _vector$6.y, _vector$6.z);
		}

		return this;
	}

	applyNormalMatrix(m) {
		for (let i = 0, l = this.count; i < l; i++) {
			_vector$6.x = this.getX(i);
			_vector$6.y = this.getY(i);
			_vector$6.z = this.getZ(i);

			_vector$6.applyNormalMatrix(m);

			this.setXYZ(i, _vector$6.x, _vector$6.y, _vector$6.z);
		}

		return this;
	}

	transformDirection(m) {
		for (let i = 0, l = this.count; i < l; i++) {
			_vector$6.x = this.getX(i);
			_vector$6.y = this.getY(i);
			_vector$6.z = this.getZ(i);

			_vector$6.transformDirection(m);

			this.setXYZ(i, _vector$6.x, _vector$6.y, _vector$6.z);
		}

		return this;
	}

	setX(index, x) {
		this.data.array[index * this.data.stride + this.offset] = x;
		return this;
	}

	setY(index, y) {
		this.data.array[index * this.data.stride + this.offset + 1] = y;
		return this;
	}

	setZ(index, z) {
		this.data.array[index * this.data.stride + this.offset + 2] = z;
		return this;
	}

	setW(index, w) {
		this.data.array[index * this.data.stride + this.offset + 3] = w;
		return this;
	}

	getX(index) {
		return this.data.array[index * this.data.stride + this.offset];
	}

	getY(index) {
		return this.data.array[index * this.data.stride + this.offset + 1];
	}

	getZ(index) {
		return this.data.array[index * this.data.stride + this.offset + 2];
	}

	getW(index) {
		return this.data.array[index * this.data.stride + this.offset + 3];
	}

	setXY(index, x, y) {
		index = index * this.data.stride + this.offset;
		this.data.array[index + 0] = x;
		this.data.array[index + 1] = y;
		return this;
	}

	setXYZ(index, x, y, z) {
		index = index * this.data.stride + this.offset;
		this.data.array[index + 0] = x;
		this.data.array[index + 1] = y;
		this.data.array[index + 2] = z;
		return this;
	}

	setXYZW(index, x, y, z, w) {
		index = index * this.data.stride + this.offset;
		this.data.array[index + 0] = x;
		this.data.array[index + 1] = y;
		this.data.array[index + 2] = z;
		this.data.array[index + 3] = w;
		return this;
	}

	clone(data) {
		if (data === undefined) {
			console.log('THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.');
			const array = [];

			for (let i = 0; i < this.count; i++) {
				const index = i * this.data.stride + this.offset;

				for (let j = 0; j < this.itemSize; j++) {
					array.push(this.data.array[index + j]);
				}
			}

			return new BufferAttribute(new this.array.constructor(array), this.itemSize, this.normalized);
		} else {
			if (data.interleavedBuffers === undefined) {
				data.interleavedBuffers = {};
			}

			if (data.interleavedBuffers[this.data.uuid] === undefined) {
				data.interleavedBuffers[this.data.uuid] = this.data.clone(data);
			}

			return new InterleavedBufferAttribute(data.interleavedBuffers[this.data.uuid], this.itemSize, this.offset, this.normalized);
		}
	}

	toJSON(data) {
		if (data === undefined) {
			console.log('THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.');
			const array = [];

			for (let i = 0; i < this.count; i++) {
				const index = i * this.data.stride + this.offset;

				for (let j = 0; j < this.itemSize; j++) {
					array.push(this.data.array[index + j]);
				}
			} // deinterleave data and save it as an ordinary buffer attribute for now


			return {
				itemSize: this.itemSize,
				type: this.array.constructor.name,
				array: array,
				normalized: this.normalized
			};
		} else {
			// save as true interlaved attribtue
			if (data.interleavedBuffers === undefined) {
				data.interleavedBuffers = {};
			}

			if (data.interleavedBuffers[this.data.uuid] === undefined) {
				data.interleavedBuffers[this.data.uuid] = this.data.toJSON(data);
			}

			return {
				isInterleavedBufferAttribute: true,
				itemSize: this.itemSize,
				data: this.data.uuid,
				offset: this.offset,
				normalized: this.normalized
			};
		}
	}

}

InterleavedBufferAttribute.prototype.isInterleavedBufferAttribute = true;

/**
 * parameters = {
 *	color: <hex>,
 *	map: new THREE.Texture( <Image> ),
 *	alphaMap: new THREE.Texture( <Image> ),
 *	rotation: <float>,
 *	sizeAttenuation: <bool>
 * }
 */

class SpriteMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'SpriteMaterial';
		this.color = new Color(0xffffff);
		this.map = null;
		this.alphaMap = null;
		this.rotation = 0;
		this.sizeAttenuation = true;
		this.transparent = true;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.color.copy(source.color);
		this.map = source.map;
		this.alphaMap = source.alphaMap;
		this.rotation = source.rotation;
		this.sizeAttenuation = source.sizeAttenuation;
		return this;
	}

}

SpriteMaterial.prototype.isSpriteMaterial = true;

let _geometry;

const _intersectPoint = /*@__PURE__*/new Vector3();

const _worldScale = /*@__PURE__*/new Vector3();

const _mvPosition = /*@__PURE__*/new Vector3();

const _alignedPosition = /*@__PURE__*/new Vector2();

const _rotatedPosition = /*@__PURE__*/new Vector2();

const _viewWorldMatrix = /*@__PURE__*/new Matrix4();

const _vA = /*@__PURE__*/new Vector3();

const _vB = /*@__PURE__*/new Vector3();

const _vC = /*@__PURE__*/new Vector3();

const _uvA = /*@__PURE__*/new Vector2();

const _uvB = /*@__PURE__*/new Vector2();

const _uvC = /*@__PURE__*/new Vector2();

class Sprite extends Object3D {
	constructor(material) {
		super();
		this.type = 'Sprite';

		if (_geometry === undefined) {
			_geometry = new BufferGeometry();
			const float32Array = new Float32Array([-0.5, -0.5, 0, 0, 0, 0.5, -0.5, 0, 1, 0, 0.5, 0.5, 0, 1, 1, -0.5, 0.5, 0, 0, 1]);
			const interleavedBuffer = new InterleavedBuffer(float32Array, 5);

			_geometry.setIndex([0, 1, 2, 0, 2, 3]);

			_geometry.setAttribute('position', new InterleavedBufferAttribute(interleavedBuffer, 3, 0, false));

			_geometry.setAttribute('uv', new InterleavedBufferAttribute(interleavedBuffer, 2, 3, false));
		}

		this.geometry = _geometry;
		this.material = material !== undefined ? material : new SpriteMaterial();
		this.center = new Vector2(0.5, 0.5);
	}

	raycast(raycaster, intersects) {
		if (raycaster.camera === null) {
			console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.');
		}

		_worldScale.setFromMatrixScale(this.matrixWorld);

		_viewWorldMatrix.copy(raycaster.camera.matrixWorld);

		this.modelViewMatrix.multiplyMatrices(raycaster.camera.matrixWorldInverse, this.matrixWorld);

		_mvPosition.setFromMatrixPosition(this.modelViewMatrix);

		if (raycaster.camera.isPerspectiveCamera && this.material.sizeAttenuation === false) {
			_worldScale.multiplyScalar(-_mvPosition.z);
		}

		const rotation = this.material.rotation;
		let sin, cos;

		if (rotation !== 0) {
			cos = Math.cos(rotation);
			sin = Math.sin(rotation);
		}

		const center = this.center;
		transformVertex(_vA.set(-0.5, -0.5, 0), _mvPosition, center, _worldScale, sin, cos);
		transformVertex(_vB.set(0.5, -0.5, 0), _mvPosition, center, _worldScale, sin, cos);
		transformVertex(_vC.set(0.5, 0.5, 0), _mvPosition, center, _worldScale, sin, cos);

		_uvA.set(0, 0);

		_uvB.set(1, 0);

		_uvC.set(1, 1); // check first triangle


		let intersect = raycaster.ray.intersectTriangle(_vA, _vB, _vC, false, _intersectPoint);

		if (intersect === null) {
			// check second triangle
			transformVertex(_vB.set(-0.5, 0.5, 0), _mvPosition, center, _worldScale, sin, cos);

			_uvB.set(0, 1);

			intersect = raycaster.ray.intersectTriangle(_vA, _vC, _vB, false, _intersectPoint);

			if (intersect === null) {
				return;
			}
		}

		const distance = raycaster.ray.origin.distanceTo(_intersectPoint);
		if (distance < raycaster.near || distance > raycaster.far) return;
		intersects.push({
			distance: distance,
			point: _intersectPoint.clone(),
			uv: Triangle.getUV(_intersectPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2()),
			face: null,
			object: this
		});
	}

	copy(source) {
		super.copy(source);
		if (source.center !== undefined) this.center.copy(source.center);
		this.material = source.material;
		return this;
	}

}

Sprite.prototype.isSprite = true;

function transformVertex(vertexPosition, mvPosition, center, scale, sin, cos) {
	// compute position in camera space
	_alignedPosition.subVectors(vertexPosition, center).addScalar(0.5).multiply(scale); // to check if rotation is not zero


	if (sin !== undefined) {
		_rotatedPosition.x = cos * _alignedPosition.x - sin * _alignedPosition.y;
		_rotatedPosition.y = sin * _alignedPosition.x + cos * _alignedPosition.y;
	} else {
		_rotatedPosition.copy(_alignedPosition);
	}

	vertexPosition.copy(mvPosition);
	vertexPosition.x += _rotatedPosition.x;
	vertexPosition.y += _rotatedPosition.y; // transform to world space

	vertexPosition.applyMatrix4(_viewWorldMatrix);
}

const _v1$2 = /*@__PURE__*/new Vector3();

const _v2$1 = /*@__PURE__*/new Vector3();

class LOD extends Object3D {
	constructor() {
		super();
		this._currentLevel = 0;
		this.type = 'LOD';
		Object.defineProperties(this, {
			levels: {
				enumerable: true,
				value: []
			},
			isLOD: {
				value: true
			}
		});
		this.autoUpdate = true;
	}

	copy(source) {
		super.copy(source, false);
		const levels = source.levels;

		for (let i = 0, l = levels.length; i < l; i++) {
			const level = levels[i];
			this.addLevel(level.object.clone(), level.distance);
		}

		this.autoUpdate = source.autoUpdate;
		return this;
	}

	addLevel(object, distance = 0) {
		distance = Math.abs(distance);
		const levels = this.levels;
		let l;

		for (l = 0; l < levels.length; l++) {
			if (distance < levels[l].distance) {
				break;
			}
		}

		levels.splice(l, 0, {
			distance: distance,
			object: object
		});
		this.add(object);
		return this;
	}

	getCurrentLevel() {
		return this._currentLevel;
	}

	getObjectForDistance(distance) {
		const levels = this.levels;

		if (levels.length > 0) {
			let i, l;

			for (i = 1, l = levels.length; i < l; i++) {
				if (distance < levels[i].distance) {
					break;
				}
			}

			return levels[i - 1].object;
		}

		return null;
	}

	raycast(raycaster, intersects) {
		const levels = this.levels;

		if (levels.length > 0) {
			_v1$2.setFromMatrixPosition(this.matrixWorld);

			const distance = raycaster.ray.origin.distanceTo(_v1$2);
			this.getObjectForDistance(distance).raycast(raycaster, intersects);
		}
	}

	update(camera) {
		const levels = this.levels;

		if (levels.length > 1) {
			_v1$2.setFromMatrixPosition(camera.matrixWorld);

			_v2$1.setFromMatrixPosition(this.matrixWorld);

			const distance = _v1$2.distanceTo(_v2$1) / camera.zoom;
			levels[0].object.visible = true;
			let i, l;

			for (i = 1, l = levels.length; i < l; i++) {
				if (distance >= levels[i].distance) {
					levels[i - 1].object.visible = false;
					levels[i].object.visible = true;
				} else {
					break;
				}
			}

			this._currentLevel = i - 1;

			for (; i < l; i++) {
				levels[i].object.visible = false;
			}
		}
	}

	toJSON(meta) {
		const data = super.toJSON(meta);
		if (this.autoUpdate === false) data.object.autoUpdate = false;
		data.object.levels = [];
		const levels = this.levels;

		for (let i = 0, l = levels.length; i < l; i++) {
			const level = levels[i];
			data.object.levels.push({
				object: level.object.uuid,
				distance: level.distance
			});
		}

		return data;
	}

}

const _basePosition = /*@__PURE__*/new Vector3();

const _skinIndex = /*@__PURE__*/new Vector4();

const _skinWeight = /*@__PURE__*/new Vector4();

const _vector$5 = /*@__PURE__*/new Vector3();

const _matrix = /*@__PURE__*/new Matrix4();

class SkinnedMesh extends Mesh {
	constructor(geometry, material) {
		super(geometry, material);
		this.type = 'SkinnedMesh';
		this.bindMode = 'attached';
		this.bindMatrix = new Matrix4();
		this.bindMatrixInverse = new Matrix4();
	}

	copy(source) {
		super.copy(source);
		this.bindMode = source.bindMode;
		this.bindMatrix.copy(source.bindMatrix);
		this.bindMatrixInverse.copy(source.bindMatrixInverse);
		this.skeleton = source.skeleton;
		return this;
	}

	bind(skeleton, bindMatrix) {
		this.skeleton = skeleton;

		if (bindMatrix === undefined) {
			this.updateMatrixWorld(true);
			this.skeleton.calculateInverses();
			bindMatrix = this.matrixWorld;
		}

		this.bindMatrix.copy(bindMatrix);
		this.bindMatrixInverse.copy(bindMatrix).invert();
	}

	pose() {
		this.skeleton.pose();
	}

	normalizeSkinWeights() {
		const vector = new Vector4();
		const skinWeight = this.geometry.attributes.skinWeight;

		for (let i = 0, l = skinWeight.count; i < l; i++) {
			vector.x = skinWeight.getX(i);
			vector.y = skinWeight.getY(i);
			vector.z = skinWeight.getZ(i);
			vector.w = skinWeight.getW(i);
			const scale = 1.0 / vector.manhattanLength();

			if (scale !== Infinity) {
				vector.multiplyScalar(scale);
			} else {
				vector.set(1, 0, 0, 0); // do something reasonable
			}

			skinWeight.setXYZW(i, vector.x, vector.y, vector.z, vector.w);
		}
	}

	updateMatrixWorld(force) {
		super.updateMatrixWorld(force);

		if (this.bindMode === 'attached') {
			this.bindMatrixInverse.copy(this.matrixWorld).invert();
		} else if (this.bindMode === 'detached') {
			this.bindMatrixInverse.copy(this.bindMatrix).invert();
		} else {
			console.warn('THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode);
		}
	}

	boneTransform(index, target) {
		const skeleton = this.skeleton;
		const geometry = this.geometry;

		_skinIndex.fromBufferAttribute(geometry.attributes.skinIndex, index);

		_skinWeight.fromBufferAttribute(geometry.attributes.skinWeight, index);

		_basePosition.copy(target).applyMatrix4(this.bindMatrix);

		target.set(0, 0, 0);

		for (let i = 0; i < 4; i++) {
			const weight = _skinWeight.getComponent(i);

			if (weight !== 0) {
				const boneIndex = _skinIndex.getComponent(i);

				_matrix.multiplyMatrices(skeleton.bones[boneIndex].matrixWorld, skeleton.boneInverses[boneIndex]);

				target.addScaledVector(_vector$5.copy(_basePosition).applyMatrix4(_matrix), weight);
			}
		}

		return target.applyMatrix4(this.bindMatrixInverse);
	}

}

SkinnedMesh.prototype.isSkinnedMesh = true;

class Bone extends Object3D {
	constructor() {
		super();
		this.type = 'Bone';
	}

}

Bone.prototype.isBone = true;

class DataTexture extends Texture {
	constructor(data = null, width = 1, height = 1, format, type, mapping, wrapS, wrapT, magFilter = NearestFilter, minFilter = NearestFilter, anisotropy, encoding) {
		super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding);
		this.image = {
			data: data,
			width: width,
			height: height
		};
		this.magFilter = magFilter;
		this.minFilter = minFilter;
		this.generateMipmaps = false;
		this.flipY = false;
		this.unpackAlignment = 1;
	}

}

DataTexture.prototype.isDataTexture = true;

const _offsetMatrix = /*@__PURE__*/new Matrix4();

const _identityMatrix = /*@__PURE__*/new Matrix4();

class Skeleton {
	constructor(bones = [], boneInverses = []) {
		this.uuid = generateUUID();
		this.bones = bones.slice(0);
		this.boneInverses = boneInverses;
		this.boneMatrices = null;
		this.boneTexture = null;
		this.boneTextureSize = 0;
		this.frame = -1;
		this.init();
	}

	init() {
		const bones = this.bones;
		const boneInverses = this.boneInverses;
		this.boneMatrices = new Float32Array(bones.length * 16); // calculate inverse bone matrices if necessary

		if (boneInverses.length === 0) {
			this.calculateInverses();
		} else {
			// handle special case
			if (bones.length !== boneInverses.length) {
				console.warn('THREE.Skeleton: Number of inverse bone matrices does not match amount of bones.');
				this.boneInverses = [];

				for (let i = 0, il = this.bones.length; i < il; i++) {
					this.boneInverses.push(new Matrix4());
				}
			}
		}
	}

	calculateInverses() {
		this.boneInverses.length = 0;

		for (let i = 0, il = this.bones.length; i < il; i++) {
			const inverse = new Matrix4();

			if (this.bones[i]) {
				inverse.copy(this.bones[i].matrixWorld).invert();
			}

			this.boneInverses.push(inverse);
		}
	}

	pose() {
		// recover the bind-time world matrices
		for (let i = 0, il = this.bones.length; i < il; i++) {
			const bone = this.bones[i];

			if (bone) {
				bone.matrixWorld.copy(this.boneInverses[i]).invert();
			}
		} // compute the local matrices, positions, rotations and scales


		for (let i = 0, il = this.bones.length; i < il; i++) {
			const bone = this.bones[i];

			if (bone) {
				if (bone.parent && bone.parent.isBone) {
					bone.matrix.copy(bone.parent.matrixWorld).invert();
					bone.matrix.multiply(bone.matrixWorld);
				} else {
					bone.matrix.copy(bone.matrixWorld);
				}

				bone.matrix.decompose(bone.position, bone.quaternion, bone.scale);
			}
		}
	}

	update() {
		const bones = this.bones;
		const boneInverses = this.boneInverses;
		const boneMatrices = this.boneMatrices;
		const boneTexture = this.boneTexture; // flatten bone matrices to array

		for (let i = 0, il = bones.length; i < il; i++) {
			// compute the offset between the current and the original transform
			const matrix = bones[i] ? bones[i].matrixWorld : _identityMatrix;

			_offsetMatrix.multiplyMatrices(matrix, boneInverses[i]);

			_offsetMatrix.toArray(boneMatrices, i * 16);
		}

		if (boneTexture !== null) {
			boneTexture.needsUpdate = true;
		}
	}

	clone() {
		return new Skeleton(this.bones, this.boneInverses);
	}

	computeBoneTexture() {
		// layout (1 matrix = 4 pixels)
		//			RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
		//	with	8x8	pixel texture max	 16 bones * 4 pixels =	(8 * 8)
		//			 16x16 pixel texture max	 64 bones * 4 pixels = (16 * 16)
		//			 32x32 pixel texture max	256 bones * 4 pixels = (32 * 32)
		//			 64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)
		let size = Math.sqrt(this.bones.length * 4); // 4 pixels needed for 1 matrix

		size = ceilPowerOfTwo(size);
		size = Math.max(size, 4);
		const boneMatrices = new Float32Array(size * size * 4); // 4 floats per RGBA pixel

		boneMatrices.set(this.boneMatrices); // copy current values

		const boneTexture = new DataTexture(boneMatrices, size, size, RGBAFormat, FloatType);
		boneTexture.needsUpdate = true;
		this.boneMatrices = boneMatrices;
		this.boneTexture = boneTexture;
		this.boneTextureSize = size;
		return this;
	}

	getBoneByName(name) {
		for (let i = 0, il = this.bones.length; i < il; i++) {
			const bone = this.bones[i];

			if (bone.name === name) {
				return bone;
			}
		}

		return undefined;
	}

	dispose() {
		if (this.boneTexture !== null) {
			this.boneTexture.dispose();
			this.boneTexture = null;
		}
	}

	fromJSON(json, bones) {
		this.uuid = json.uuid;

		for (let i = 0, l = json.bones.length; i < l; i++) {
			const uuid = json.bones[i];
			let bone = bones[uuid];

			if (bone === undefined) {
				console.warn('THREE.Skeleton: No bone found with UUID:', uuid);
				bone = new Bone();
			}

			this.bones.push(bone);
			this.boneInverses.push(new Matrix4().fromArray(json.boneInverses[i]));
		}

		this.init();
		return this;
	}

	toJSON() {
		const data = {
			metadata: {
				version: 4.5,
				type: 'Skeleton',
				generator: 'Skeleton.toJSON'
			},
			bones: [],
			boneInverses: []
		};
		data.uuid = this.uuid;
		const bones = this.bones;
		const boneInverses = this.boneInverses;

		for (let i = 0, l = bones.length; i < l; i++) {
			const bone = bones[i];
			data.bones.push(bone.uuid);
			const boneInverse = boneInverses[i];
			data.boneInverses.push(boneInverse.toArray());
		}

		return data;
	}

}

class InstancedBufferAttribute extends BufferAttribute {
	constructor(array, itemSize, normalized, meshPerAttribute = 1) {
		if (typeof normalized === 'number') {
			meshPerAttribute = normalized;
			normalized = false;
			console.error('THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.');
		}

		super(array, itemSize, normalized);
		this.meshPerAttribute = meshPerAttribute;
	}

	copy(source) {
		super.copy(source);
		this.meshPerAttribute = source.meshPerAttribute;
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.meshPerAttribute = this.meshPerAttribute;
		data.isInstancedBufferAttribute = true;
		return data;
	}

}

InstancedBufferAttribute.prototype.isInstancedBufferAttribute = true;

const _instanceLocalMatrix = /*@__PURE__*/new Matrix4();

const _instanceWorldMatrix = /*@__PURE__*/new Matrix4();

const _instanceIntersects = [];

const _mesh = /*@__PURE__*/new Mesh();

class InstancedMesh extends Mesh {
	constructor(geometry, material, count) {
		super(geometry, material);
		this.instanceMatrix = new InstancedBufferAttribute(new Float32Array(count * 16), 16);
		this.instanceColor = null;
		this.count = count;
		this.frustumCulled = false;
	}

	copy(source) {
		super.copy(source);
		this.instanceMatrix.copy(source.instanceMatrix);
		if (source.instanceColor !== null) this.instanceColor = source.instanceColor.clone();
		this.count = source.count;
		return this;
	}

	getColorAt(index, color) {
		color.fromArray(this.instanceColor.array, index * 3);
	}

	getMatrixAt(index, matrix) {
		matrix.fromArray(this.instanceMatrix.array, index * 16);
	}

	raycast(raycaster, intersects) {
		const matrixWorld = this.matrixWorld;
		const raycastTimes = this.count;
		_mesh.geometry = this.geometry;
		_mesh.material = this.material;
		if (_mesh.material === undefined) return;

		for (let instanceId = 0; instanceId < raycastTimes; instanceId++) {
			// calculate the world matrix for each instance
			this.getMatrixAt(instanceId, _instanceLocalMatrix);

			_instanceWorldMatrix.multiplyMatrices(matrixWorld, _instanceLocalMatrix); // the mesh represents this single instance


			_mesh.matrixWorld = _instanceWorldMatrix;

			_mesh.raycast(raycaster, _instanceIntersects); // process the result of raycast


			for (let i = 0, l = _instanceIntersects.length; i < l; i++) {
				const intersect = _instanceIntersects[i];
				intersect.instanceId = instanceId;
				intersect.object = this;
				intersects.push(intersect);
			}

			_instanceIntersects.length = 0;
		}
	}

	setColorAt(index, color) {
		if (this.instanceColor === null) {
			this.instanceColor = new InstancedBufferAttribute(new Float32Array(this.instanceMatrix.count * 3), 3);
		}

		color.toArray(this.instanceColor.array, index * 3);
	}

	setMatrixAt(index, matrix) {
		matrix.toArray(this.instanceMatrix.array, index * 16);
	}

	updateMorphTargets() {}

	dispose() {
		this.dispatchEvent({
			type: 'dispose'
		});
	}

}

InstancedMesh.prototype.isInstancedMesh = true;

/**
 * parameters = {
 *	color: <hex>,
 *	opacity: <float>,
 *
 *	linewidth: <float>,
 *	linecap: "round",
 *	linejoin: "round"
 * }
 */

class LineBasicMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'LineBasicMaterial';
		this.color = new Color(0xffffff);
		this.linewidth = 1;
		this.linecap = 'round';
		this.linejoin = 'round';
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.color.copy(source.color);
		this.linewidth = source.linewidth;
		this.linecap = source.linecap;
		this.linejoin = source.linejoin;
		return this;
	}

}

LineBasicMaterial.prototype.isLineBasicMaterial = true;

const _start$1 = /*@__PURE__*/new Vector3();

const _end$1 = /*@__PURE__*/new Vector3();

const _inverseMatrix$1 = /*@__PURE__*/new Matrix4();

const _ray$1 = /*@__PURE__*/new Ray();

const _sphere$1 = /*@__PURE__*/new Sphere();

class Line extends Object3D {
	constructor(geometry = new BufferGeometry(), material = new LineBasicMaterial()) {
		super();
		this.type = 'Line';
		this.geometry = geometry;
		this.material = material;
		this.updateMorphTargets();
	}

	copy(source) {
		super.copy(source);
		this.material = source.material;
		this.geometry = source.geometry;
		return this;
	}

	computeLineDistances() {
		const geometry = this.geometry;

		if (geometry.isBufferGeometry) {
			// we assume non-indexed geometry
			if (geometry.index === null) {
				const positionAttribute = geometry.attributes.position;
				const lineDistances = [0];

				for (let i = 1, l = positionAttribute.count; i < l; i++) {
					_start$1.fromBufferAttribute(positionAttribute, i - 1);

					_end$1.fromBufferAttribute(positionAttribute, i);

					lineDistances[i] = lineDistances[i - 1];
					lineDistances[i] += _start$1.distanceTo(_end$1);
				}

				geometry.setAttribute('lineDistance', new Float32BufferAttribute(lineDistances, 1));
			} else {
				console.warn('THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.');
			}
		} else if (geometry.isGeometry) {
			console.error('THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
		}

		return this;
	}

	raycast(raycaster, intersects) {
		const geometry = this.geometry;
		const matrixWorld = this.matrixWorld;
		const threshold = raycaster.params.Line.threshold;
		const drawRange = geometry.drawRange; // Checking boundingSphere distance to ray

		if (geometry.boundingSphere === null) geometry.computeBoundingSphere();

		_sphere$1.copy(geometry.boundingSphere);

		_sphere$1.applyMatrix4(matrixWorld);

		_sphere$1.radius += threshold;
		if (raycaster.ray.intersectsSphere(_sphere$1) === false) return; //

		_inverseMatrix$1.copy(matrixWorld).invert();

		_ray$1.copy(raycaster.ray).applyMatrix4(_inverseMatrix$1);

		const localThreshold = threshold / ((this.scale.x + this.scale.y + this.scale.z) / 3);
		const localThresholdSq = localThreshold * localThreshold;
		const vStart = new Vector3();
		const vEnd = new Vector3();
		const interSegment = new Vector3();
		const interRay = new Vector3();
		const step = this.isLineSegments ? 2 : 1;

		if (geometry.isBufferGeometry) {
			const index = geometry.index;
			const attributes = geometry.attributes;
			const positionAttribute = attributes.position;

			if (index !== null) {
				const start = Math.max(0, drawRange.start);
				const end = Math.min(index.count, drawRange.start + drawRange.count);

				for (let i = start, l = end - 1; i < l; i += step) {
					const a = index.getX(i);
					const b = index.getX(i + 1);
					vStart.fromBufferAttribute(positionAttribute, a);
					vEnd.fromBufferAttribute(positionAttribute, b);

					const distSq = _ray$1.distanceSqToSegment(vStart, vEnd, interRay, interSegment);

					if (distSq > localThresholdSq) continue;
					interRay.applyMatrix4(this.matrixWorld); //Move back to world space for distance calculation

					const distance = raycaster.ray.origin.distanceTo(interRay);
					if (distance < raycaster.near || distance > raycaster.far) continue;
					intersects.push({
						distance: distance,
						// What do we want? intersection point on the ray or on the segment??
						// point: raycaster.ray.at( distance ),
						point: interSegment.clone().applyMatrix4(this.matrixWorld),
						index: i,
						face: null,
						faceIndex: null,
						object: this
					});
				}
			} else {
				const start = Math.max(0, drawRange.start);
				const end = Math.min(positionAttribute.count, drawRange.start + drawRange.count);

				for (let i = start, l = end - 1; i < l; i += step) {
					vStart.fromBufferAttribute(positionAttribute, i);
					vEnd.fromBufferAttribute(positionAttribute, i + 1);

					const distSq = _ray$1.distanceSqToSegment(vStart, vEnd, interRay, interSegment);

					if (distSq > localThresholdSq) continue;
					interRay.applyMatrix4(this.matrixWorld); //Move back to world space for distance calculation

					const distance = raycaster.ray.origin.distanceTo(interRay);
					if (distance < raycaster.near || distance > raycaster.far) continue;
					intersects.push({
						distance: distance,
						// What do we want? intersection point on the ray or on the segment??
						// point: raycaster.ray.at( distance ),
						point: interSegment.clone().applyMatrix4(this.matrixWorld),
						index: i,
						face: null,
						faceIndex: null,
						object: this
					});
				}
			}
		} else if (geometry.isGeometry) {
			console.error('THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
		}
	}

	updateMorphTargets() {
		const geometry = this.geometry;

		if (geometry.isBufferGeometry) {
			const morphAttributes = geometry.morphAttributes;
			const keys = Object.keys(morphAttributes);

			if (keys.length > 0) {
				const morphAttribute = morphAttributes[keys[0]];

				if (morphAttribute !== undefined) {
					this.morphTargetInfluences = [];
					this.morphTargetDictionary = {};

					for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
						const name = morphAttribute[m].name || String(m);
						this.morphTargetInfluences.push(0);
						this.morphTargetDictionary[name] = m;
					}
				}
			}
		} else {
			const morphTargets = geometry.morphTargets;

			if (morphTargets !== undefined && morphTargets.length > 0) {
				console.error('THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.');
			}
		}
	}

}

Line.prototype.isLine = true;

const _start = /*@__PURE__*/new Vector3();

const _end = /*@__PURE__*/new Vector3();

class LineSegments extends Line {
	constructor(geometry, material) {
		super(geometry, material);
		this.type = 'LineSegments';
	}

	computeLineDistances() {
		const geometry = this.geometry;

		if (geometry.isBufferGeometry) {
			// we assume non-indexed geometry
			if (geometry.index === null) {
				const positionAttribute = geometry.attributes.position;
				const lineDistances = [];

				for (let i = 0, l = positionAttribute.count; i < l; i += 2) {
					_start.fromBufferAttribute(positionAttribute, i);

					_end.fromBufferAttribute(positionAttribute, i + 1);

					lineDistances[i] = i === 0 ? 0 : lineDistances[i - 1];
					lineDistances[i + 1] = lineDistances[i] + _start.distanceTo(_end);
				}

				geometry.setAttribute('lineDistance', new Float32BufferAttribute(lineDistances, 1));
			} else {
				console.warn('THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.');
			}
		} else if (geometry.isGeometry) {
			console.error('THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
		}

		return this;
	}

}

LineSegments.prototype.isLineSegments = true;

class LineLoop extends Line {
	constructor(geometry, material) {
		super(geometry, material);
		this.type = 'LineLoop';
	}

}

LineLoop.prototype.isLineLoop = true;

/**
 * parameters = {
 *	color: <hex>,
 *	opacity: <float>,
 *	map: new THREE.Texture( <Image> ),
 *	alphaMap: new THREE.Texture( <Image> ),
 *
 *	size: <float>,
 *	sizeAttenuation: <bool>
 *
 * }
 */

class PointsMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'PointsMaterial';
		this.color = new Color(0xffffff);
		this.map = null;
		this.alphaMap = null;
		this.size = 1;
		this.sizeAttenuation = true;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.color.copy(source.color);
		this.map = source.map;
		this.alphaMap = source.alphaMap;
		this.size = source.size;
		this.sizeAttenuation = source.sizeAttenuation;
		return this;
	}

}

PointsMaterial.prototype.isPointsMaterial = true;

const _inverseMatrix = /*@__PURE__*/new Matrix4();

const _ray = /*@__PURE__*/new Ray();

const _sphere = /*@__PURE__*/new Sphere();

const _position$2 = /*@__PURE__*/new Vector3();

class Points extends Object3D {
	constructor(geometry = new BufferGeometry(), material = new PointsMaterial()) {
		super();
		this.type = 'Points';
		this.geometry = geometry;
		this.material = material;
		this.updateMorphTargets();
	}

	copy(source) {
		super.copy(source);
		this.material = source.material;
		this.geometry = source.geometry;
		return this;
	}

	raycast(raycaster, intersects) {
		const geometry = this.geometry;
		const matrixWorld = this.matrixWorld;
		const threshold = raycaster.params.Points.threshold;
		const drawRange = geometry.drawRange; // Checking boundingSphere distance to ray

		if (geometry.boundingSphere === null) geometry.computeBoundingSphere();

		_sphere.copy(geometry.boundingSphere);

		_sphere.applyMatrix4(matrixWorld);

		_sphere.radius += threshold;
		if (raycaster.ray.intersectsSphere(_sphere) === false) return; //

		_inverseMatrix.copy(matrixWorld).invert();

		_ray.copy(raycaster.ray).applyMatrix4(_inverseMatrix);

		const localThreshold = threshold / ((this.scale.x + this.scale.y + this.scale.z) / 3);
		const localThresholdSq = localThreshold * localThreshold;

		if (geometry.isBufferGeometry) {
			const index = geometry.index;
			const attributes = geometry.attributes;
			const positionAttribute = attributes.position;

			if (index !== null) {
				const start = Math.max(0, drawRange.start);
				const end = Math.min(index.count, drawRange.start + drawRange.count);

				for (let i = start, il = end; i < il; i++) {
					const a = index.getX(i);

					_position$2.fromBufferAttribute(positionAttribute, a);

					testPoint(_position$2, a, localThresholdSq, matrixWorld, raycaster, intersects, this);
				}
			} else {
				const start = Math.max(0, drawRange.start);
				const end = Math.min(positionAttribute.count, drawRange.start + drawRange.count);

				for (let i = start, l = end; i < l; i++) {
					_position$2.fromBufferAttribute(positionAttribute, i);

					testPoint(_position$2, i, localThresholdSq, matrixWorld, raycaster, intersects, this);
				}
			}
		} else {
			console.error('THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');
		}
	}

	updateMorphTargets() {
		const geometry = this.geometry;

		if (geometry.isBufferGeometry) {
			const morphAttributes = geometry.morphAttributes;
			const keys = Object.keys(morphAttributes);

			if (keys.length > 0) {
				const morphAttribute = morphAttributes[keys[0]];

				if (morphAttribute !== undefined) {
					this.morphTargetInfluences = [];
					this.morphTargetDictionary = {};

					for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
						const name = morphAttribute[m].name || String(m);
						this.morphTargetInfluences.push(0);
						this.morphTargetDictionary[name] = m;
					}
				}
			}
		} else {
			const morphTargets = geometry.morphTargets;

			if (morphTargets !== undefined && morphTargets.length > 0) {
				console.error('THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.');
			}
		}
	}

}

Points.prototype.isPoints = true;

function testPoint(point, index, localThresholdSq, matrixWorld, raycaster, intersects, object) {
	const rayPointDistanceSq = _ray.distanceSqToPoint(point);

	if (rayPointDistanceSq < localThresholdSq) {
		const intersectPoint = new Vector3();

		_ray.closestPointToPoint(point, intersectPoint);

		intersectPoint.applyMatrix4(matrixWorld);
		const distance = raycaster.ray.origin.distanceTo(intersectPoint);
		if (distance < raycaster.near || distance > raycaster.far) return;
		intersects.push({
			distance: distance,
			distanceToRay: Math.sqrt(rayPointDistanceSq),
			point: intersectPoint,
			index: index,
			face: null,
			object: object
		});
	}
}

class VideoTexture extends Texture {
	constructor(video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy) {
		super(video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
		this.minFilter = minFilter !== undefined ? minFilter : LinearFilter;
		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
		this.generateMipmaps = false;
		const scope = this;

		function updateVideo() {
			scope.needsUpdate = true;
			video.requestVideoFrameCallback(updateVideo);
		}

		if ('requestVideoFrameCallback' in video) {
			video.requestVideoFrameCallback(updateVideo);
		}
	}

	clone() {
		return new this.constructor(this.image).copy(this);
	}

	update() {
		const video = this.image;
		const hasVideoFrameCallback = ('requestVideoFrameCallback' in video);

		if (hasVideoFrameCallback === false && video.readyState >= video.HAVE_CURRENT_DATA) {
			this.needsUpdate = true;
		}
	}

}

VideoTexture.prototype.isVideoTexture = true;

class FramebufferTexture extends Texture {
	constructor(width, height, format) {
		super({
			width,
			height
		});
		this.format = format;
		this.magFilter = NearestFilter;
		this.minFilter = NearestFilter;
		this.generateMipmaps = false;
		this.needsUpdate = true;
	}

}

FramebufferTexture.prototype.isFramebufferTexture = true;

class CompressedTexture extends Texture {
	constructor(mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding) {
		super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding);
		this.image = {
			width: width,
			height: height
		};
		this.mipmaps = mipmaps; // no flipping for cube textures
		// (also flipping doesn't work for compressed textures )

		this.flipY = false; // can't generate mipmaps for compressed textures
		// mips must be embedded in DDS files

		this.generateMipmaps = false;
	}

}

CompressedTexture.prototype.isCompressedTexture = true;

class CanvasTexture extends Texture {
	constructor(canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy) {
		super(canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
		this.needsUpdate = true;
	}

}

CanvasTexture.prototype.isCanvasTexture = true;

class CircleGeometry extends BufferGeometry {
	constructor(radius = 1, segments = 8, thetaStart = 0, thetaLength = Math.PI * 2) {
		super();
		this.type = 'CircleGeometry';
		this.parameters = {
			radius: radius,
			segments: segments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};
		segments = Math.max(3, segments); // buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = []; // helper variables

		const vertex = new Vector3();
		const uv = new Vector2(); // center point

		vertices.push(0, 0, 0);
		normals.push(0, 0, 1);
		uvs.push(0.5, 0.5);

		for (let s = 0, i = 3; s <= segments; s++, i += 3) {
			const segment = thetaStart + s / segments * thetaLength; // vertex

			vertex.x = radius * Math.cos(segment);
			vertex.y = radius * Math.sin(segment);
			vertices.push(vertex.x, vertex.y, vertex.z); // normal

			normals.push(0, 0, 1); // uvs

			uv.x = (vertices[i] / radius + 1) / 2;
			uv.y = (vertices[i + 1] / radius + 1) / 2;
			uvs.push(uv.x, uv.y);
		} // indices


		for (let i = 1; i <= segments; i++) {
			indices.push(i, i + 1, 0);
		} // build geometry


		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
	}

	static fromJSON(data) {
		return new CircleGeometry(data.radius, data.segments, data.thetaStart, data.thetaLength);
	}

}

class CylinderGeometry extends BufferGeometry {
	constructor(radiusTop = 1, radiusBottom = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2) {
		super();
		this.type = 'CylinderGeometry';
		this.parameters = {
			radiusTop: radiusTop,
			radiusBottom: radiusBottom,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};
		const scope = this;
		radialSegments = Math.floor(radialSegments);
		heightSegments = Math.floor(heightSegments); // buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = []; // helper variables

		let index = 0;
		const indexArray = [];
		const halfHeight = height / 2;
		let groupStart = 0; // generate geometry

		generateTorso();

		if (openEnded === false) {
			if (radiusTop > 0) generateCap(true);
			if (radiusBottom > 0) generateCap(false);
		} // build geometry


		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));

		function generateTorso() {
			const normal = new Vector3();
			const vertex = new Vector3();
			let groupCount = 0; // this will be used to calculate the normal

			const slope = (radiusBottom - radiusTop) / height; // generate vertices, normals and uvs

			for (let y = 0; y <= heightSegments; y++) {
				const indexRow = [];
				const v = y / heightSegments; // calculate the radius of the current row

				const radius = v * (radiusBottom - radiusTop) + radiusTop;

				for (let x = 0; x <= radialSegments; x++) {
					const u = x / radialSegments;
					const theta = u * thetaLength + thetaStart;
					const sinTheta = Math.sin(theta);
					const cosTheta = Math.cos(theta); // vertex

					vertex.x = radius * sinTheta;
					vertex.y = -v * height + halfHeight;
					vertex.z = radius * cosTheta;
					vertices.push(vertex.x, vertex.y, vertex.z); // normal

					normal.set(sinTheta, slope, cosTheta).normalize();
					normals.push(normal.x, normal.y, normal.z); // uv

					uvs.push(u, 1 - v); // save index of vertex in respective row

					indexRow.push(index++);
				} // now save vertices of the row in our index array


				indexArray.push(indexRow);
			} // generate indices


			for (let x = 0; x < radialSegments; x++) {
				for (let y = 0; y < heightSegments; y++) {
					// we use the index array to access the correct indices
					const a = indexArray[y][x];
					const b = indexArray[y + 1][x];
					const c = indexArray[y + 1][x + 1];
					const d = indexArray[y][x + 1]; // faces

					indices.push(a, b, d);
					indices.push(b, c, d); // update group counter

					groupCount += 6;
				}
			} // add a group to the geometry. this will ensure multi material support


			scope.addGroup(groupStart, groupCount, 0); // calculate new start value for groups

			groupStart += groupCount;
		}

		function generateCap(top) {
			// save the index of the first center vertex
			const centerIndexStart = index;
			const uv = new Vector2();
			const vertex = new Vector3();
			let groupCount = 0;
			const radius = top === true ? radiusTop : radiusBottom;
			const sign = top === true ? 1 : -1; // first we generate the center vertex data of the cap.
			// because the geometry needs one set of uvs per face,
			// we must generate a center vertex per face/segment

			for (let x = 1; x <= radialSegments; x++) {
				// vertex
				vertices.push(0, halfHeight * sign, 0); // normal

				normals.push(0, sign, 0); // uv

				uvs.push(0.5, 0.5); // increase index

				index++;
			} // save the index of the last center vertex


			const centerIndexEnd = index; // now we generate the surrounding vertices, normals and uvs

			for (let x = 0; x <= radialSegments; x++) {
				const u = x / radialSegments;
				const theta = u * thetaLength + thetaStart;
				const cosTheta = Math.cos(theta);
				const sinTheta = Math.sin(theta); // vertex

				vertex.x = radius * sinTheta;
				vertex.y = halfHeight * sign;
				vertex.z = radius * cosTheta;
				vertices.push(vertex.x, vertex.y, vertex.z); // normal

				normals.push(0, sign, 0); // uv

				uv.x = cosTheta * 0.5 + 0.5;
				uv.y = sinTheta * 0.5 * sign + 0.5;
				uvs.push(uv.x, uv.y); // increase index

				index++;
			} // generate indices


			for (let x = 0; x < radialSegments; x++) {
				const c = centerIndexStart + x;
				const i = centerIndexEnd + x;

				if (top === true) {
					// face top
					indices.push(i, i + 1, c);
				} else {
					// face bottom
					indices.push(i + 1, i, c);
				}

				groupCount += 3;
			} // add a group to the geometry. this will ensure multi material support


			scope.addGroup(groupStart, groupCount, top === true ? 1 : 2); // calculate new start value for groups

			groupStart += groupCount;
		}
	}

	static fromJSON(data) {
		return new CylinderGeometry(data.radiusTop, data.radiusBottom, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength);
	}

}

class ConeGeometry extends CylinderGeometry {
	constructor(radius = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2) {
		super(0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength);
		this.type = 'ConeGeometry';
		this.parameters = {
			radius: radius,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};
	}

	static fromJSON(data) {
		return new ConeGeometry(data.radius, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength);
	}

}

class PolyhedronGeometry extends BufferGeometry {
	constructor(vertices = [], indices = [], radius = 1, detail = 0) {
		super();
		this.type = 'PolyhedronGeometry';
		this.parameters = {
			vertices: vertices,
			indices: indices,
			radius: radius,
			detail: detail
		}; // default buffer data

		const vertexBuffer = [];
		const uvBuffer = []; // the subdivision creates the vertex buffer data

		subdivide(detail); // all vertices should lie on a conceptual sphere with a given radius

		applyRadius(radius); // finally, create the uv data

		generateUVs(); // build non-indexed geometry

		this.setAttribute('position', new Float32BufferAttribute(vertexBuffer, 3));
		this.setAttribute('normal', new Float32BufferAttribute(vertexBuffer.slice(), 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvBuffer, 2));

		if (detail === 0) {
			this.computeVertexNormals(); // flat normals
		} else {
			this.normalizeNormals(); // smooth normals
		} // helper functions


		function subdivide(detail) {
			const a = new Vector3();
			const b = new Vector3();
			const c = new Vector3(); // iterate over all faces and apply a subdivison with the given detail value

			for (let i = 0; i < indices.length; i += 3) {
				// get the vertices of the face
				getVertexByIndex(indices[i + 0], a);
				getVertexByIndex(indices[i + 1], b);
				getVertexByIndex(indices[i + 2], c); // perform subdivision

				subdivideFace(a, b, c, detail);
			}
		}

		function subdivideFace(a, b, c, detail) {
			const cols = detail + 1; // we use this multidimensional array as a data structure for creating the subdivision

			const v = []; // construct all of the vertices for this subdivision

			for (let i = 0; i <= cols; i++) {
				v[i] = [];
				const aj = a.clone().lerp(c, i / cols);
				const bj = b.clone().lerp(c, i / cols);
				const rows = cols - i;

				for (let j = 0; j <= rows; j++) {
					if (j === 0 && i === cols) {
						v[i][j] = aj;
					} else {
						v[i][j] = aj.clone().lerp(bj, j / rows);
					}
				}
			} // construct all of the faces


			for (let i = 0; i < cols; i++) {
				for (let j = 0; j < 2 * (cols - i) - 1; j++) {
					const k = Math.floor(j / 2);

					if (j % 2 === 0) {
						pushVertex(v[i][k + 1]);
						pushVertex(v[i + 1][k]);
						pushVertex(v[i][k]);
					} else {
						pushVertex(v[i][k + 1]);
						pushVertex(v[i + 1][k + 1]);
						pushVertex(v[i + 1][k]);
					}
				}
			}
		}

		function applyRadius(radius) {
			const vertex = new Vector3(); // iterate over the entire buffer and apply the radius to each vertex

			for (let i = 0; i < vertexBuffer.length; i += 3) {
				vertex.x = vertexBuffer[i + 0];
				vertex.y = vertexBuffer[i + 1];
				vertex.z = vertexBuffer[i + 2];
				vertex.normalize().multiplyScalar(radius);
				vertexBuffer[i + 0] = vertex.x;
				vertexBuffer[i + 1] = vertex.y;
				vertexBuffer[i + 2] = vertex.z;
			}
		}

		function generateUVs() {
			const vertex = new Vector3();

			for (let i = 0; i < vertexBuffer.length; i += 3) {
				vertex.x = vertexBuffer[i + 0];
				vertex.y = vertexBuffer[i + 1];
				vertex.z = vertexBuffer[i + 2];
				const u = azimuth(vertex) / 2 / Math.PI + 0.5;
				const v = inclination(vertex) / Math.PI + 0.5;
				uvBuffer.push(u, 1 - v);
			}

			correctUVs();
			correctSeam();
		}

		function correctSeam() {
			// handle case when face straddles the seam, see #3269
			for (let i = 0; i < uvBuffer.length; i += 6) {
				// uv data of a single face
				const x0 = uvBuffer[i + 0];
				const x1 = uvBuffer[i + 2];
				const x2 = uvBuffer[i + 4];
				const max = Math.max(x0, x1, x2);
				const min = Math.min(x0, x1, x2); // 0.9 is somewhat arbitrary

				if (max > 0.9 && min < 0.1) {
					if (x0 < 0.2) uvBuffer[i + 0] += 1;
					if (x1 < 0.2) uvBuffer[i + 2] += 1;
					if (x2 < 0.2) uvBuffer[i + 4] += 1;
				}
			}
		}

		function pushVertex(vertex) {
			vertexBuffer.push(vertex.x, vertex.y, vertex.z);
		}

		function getVertexByIndex(index, vertex) {
			const stride = index * 3;
			vertex.x = vertices[stride + 0];
			vertex.y = vertices[stride + 1];
			vertex.z = vertices[stride + 2];
		}

		function correctUVs() {
			const a = new Vector3();
			const b = new Vector3();
			const c = new Vector3();
			const centroid = new Vector3();
			const uvA = new Vector2();
			const uvB = new Vector2();
			const uvC = new Vector2();

			for (let i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6) {
				a.set(vertexBuffer[i + 0], vertexBuffer[i + 1], vertexBuffer[i + 2]);
				b.set(vertexBuffer[i + 3], vertexBuffer[i + 4], vertexBuffer[i + 5]);
				c.set(vertexBuffer[i + 6], vertexBuffer[i + 7], vertexBuffer[i + 8]);
				uvA.set(uvBuffer[j + 0], uvBuffer[j + 1]);
				uvB.set(uvBuffer[j + 2], uvBuffer[j + 3]);
				uvC.set(uvBuffer[j + 4], uvBuffer[j + 5]);
				centroid.copy(a).add(b).add(c).divideScalar(3);
				const azi = azimuth(centroid);
				correctUV(uvA, j + 0, a, azi);
				correctUV(uvB, j + 2, b, azi);
				correctUV(uvC, j + 4, c, azi);
			}
		}

		function correctUV(uv, stride, vector, azimuth) {
			if (azimuth < 0 && uv.x === 1) {
				uvBuffer[stride] = uv.x - 1;
			}

			if (vector.x === 0 && vector.z === 0) {
				uvBuffer[stride] = azimuth / 2 / Math.PI + 0.5;
			}
		} // Angle around the Y axis, counter-clockwise when looking from above.


		function azimuth(vector) {
			return Math.atan2(vector.z, -vector.x);
		} // Angle above the XZ plane.


		function inclination(vector) {
			return Math.atan2(-vector.y, Math.sqrt(vector.x * vector.x + vector.z * vector.z));
		}
	}

	static fromJSON(data) {
		return new PolyhedronGeometry(data.vertices, data.indices, data.radius, data.details);
	}

}

class DodecahedronGeometry extends PolyhedronGeometry {
	constructor(radius = 1, detail = 0) {
		const t = (1 + Math.sqrt(5)) / 2;
		const r = 1 / t;
		const vertices = [// (±1, ±1, ±1)
		-1, -1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, 1, 1, -1, 1, 1, 1, // (0, ±1/φ, ±φ)
		0, -r, -t, 0, -r, t, 0, r, -t, 0, r, t, // (±1/φ, ±φ, 0)
		-r, -t, 0, -r, t, 0, r, -t, 0, r, t, 0, // (±φ, 0, ±1/φ)
		-t, 0, -r, t, 0, -r, -t, 0, r, t, 0, r];
		const indices = [3, 11, 7, 3, 7, 15, 3, 15, 13, 7, 19, 17, 7, 17, 6, 7, 6, 15, 17, 4, 8, 17, 8, 10, 17, 10, 6, 8, 0, 16, 8, 16, 2, 8, 2, 10, 0, 12, 1, 0, 1, 18, 0, 18, 16, 6, 10, 2, 6, 2, 13, 6, 13, 15, 2, 16, 18, 2, 18, 3, 2, 3, 13, 18, 1, 9, 18, 9, 11, 18, 11, 3, 4, 14, 12, 4, 12, 0, 4, 0, 8, 11, 9, 5, 11, 5, 19, 11, 19, 7, 19, 5, 14, 19, 14, 4, 19, 4, 17, 1, 12, 14, 1, 14, 5, 1, 5, 9];
		super(vertices, indices, radius, detail);
		this.type = 'DodecahedronGeometry';
		this.parameters = {
			radius: radius,
			detail: detail
		};
	}

	static fromJSON(data) {
		return new DodecahedronGeometry(data.radius, data.detail);
	}

}

const _v0 = new Vector3();

const _v1$1 = new Vector3();

const _normal = new Vector3();

const _triangle = new Triangle();

class EdgesGeometry extends BufferGeometry {
	constructor(geometry = null, thresholdAngle = 1) {
		super();
		this.type = 'EdgesGeometry';
		this.parameters = {
			geometry: geometry,
			thresholdAngle: thresholdAngle
		};

		if (geometry !== null) {
			const precisionPoints = 4;
			const precision = Math.pow(10, precisionPoints);
			const thresholdDot = Math.cos(DEG2RAD * thresholdAngle);
			const indexAttr = geometry.getIndex();
			const positionAttr = geometry.getAttribute('position');
			const indexCount = indexAttr ? indexAttr.count : positionAttr.count;
			const indexArr = [0, 0, 0];
			const vertKeys = ['a', 'b', 'c'];
			const hashes = new Array(3);
			const edgeData = {};
			const vertices = [];

			for (let i = 0; i < indexCount; i += 3) {
				if (indexAttr) {
					indexArr[0] = indexAttr.getX(i);
					indexArr[1] = indexAttr.getX(i + 1);
					indexArr[2] = indexAttr.getX(i + 2);
				} else {
					indexArr[0] = i;
					indexArr[1] = i + 1;
					indexArr[2] = i + 2;
				}

				const {
					a,
					b,
					c
				} = _triangle;
				a.fromBufferAttribute(positionAttr, indexArr[0]);
				b.fromBufferAttribute(positionAttr, indexArr[1]);
				c.fromBufferAttribute(positionAttr, indexArr[2]);

				_triangle.getNormal(_normal); // create hashes for the edge from the vertices


				hashes[0] = `${Math.round(a.x * precision)},${Math.round(a.y * precision)},${Math.round(a.z * precision)}`;
				hashes[1] = `${Math.round(b.x * precision)},${Math.round(b.y * precision)},${Math.round(b.z * precision)}`;
				hashes[2] = `${Math.round(c.x * precision)},${Math.round(c.y * precision)},${Math.round(c.z * precision)}`; // skip degenerate triangles

				if (hashes[0] === hashes[1] || hashes[1] === hashes[2] || hashes[2] === hashes[0]) {
					continue;
				} // iterate over every edge


				for (let j = 0; j < 3; j++) {
					// get the first and next vertex making up the edge
					const jNext = (j + 1) % 3;
					const vecHash0 = hashes[j];
					const vecHash1 = hashes[jNext];
					const v0 = _triangle[vertKeys[j]];
					const v1 = _triangle[vertKeys[jNext]];
					const hash = `${vecHash0}_${vecHash1}`;
					const reverseHash = `${vecHash1}_${vecHash0}`;

					if (reverseHash in edgeData && edgeData[reverseHash]) {
						// if we found a sibling edge add it into the vertex array if
						// it meets the angle threshold and delete the edge from the map.
						if (_normal.dot(edgeData[reverseHash].normal) <= thresholdDot) {
							vertices.push(v0.x, v0.y, v0.z);
							vertices.push(v1.x, v1.y, v1.z);
						}

						edgeData[reverseHash] = null;
					} else if (!(hash in edgeData)) {
						// if we've already got an edge here then skip adding a new one
						edgeData[hash] = {
							index0: indexArr[j],
							index1: indexArr[jNext],
							normal: _normal.clone()
						};
					}
				}
			} // iterate over all remaining, unmatched edges and add them to the vertex array


			for (const key in edgeData) {
				if (edgeData[key]) {
					const {
						index0,
						index1
					} = edgeData[key];

					_v0.fromBufferAttribute(positionAttr, index0);

					_v1$1.fromBufferAttribute(positionAttr, index1);

					vertices.push(_v0.x, _v0.y, _v0.z);
					vertices.push(_v1$1.x, _v1$1.y, _v1$1.z);
				}
			}

			this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		}
	}

}

/**
 * Extensible curve object.
 *
 * Some common of curve methods:
 * .getPoint( t, optionalTarget ), .getTangent( t, optionalTarget )
 * .getPointAt( u, optionalTarget ), .getTangentAt( u, optionalTarget )
 * .getPoints(), .getSpacedPoints()
 * .getLength()
 * .updateArcLengths()
 *
 * This following curves inherit from THREE.Curve:
 *
 * -- 2D curves --
 * THREE.ArcCurve
 * THREE.CubicBezierCurve
 * THREE.EllipseCurve
 * THREE.LineCurve
 * THREE.QuadraticBezierCurve
 * THREE.SplineCurve
 *
 * -- 3D curves --
 * THREE.CatmullRomCurve3
 * THREE.CubicBezierCurve3
 * THREE.LineCurve3
 * THREE.QuadraticBezierCurve3
 *
 * A series of curves can be represented as a THREE.CurvePath.
 *
 **/

class Curve {
	constructor() {
		this.type = 'Curve';
		this.arcLengthDivisions = 200;
	} // Virtual base class method to overwrite and implement in subclasses
	//	- t [0 .. 1]


	getPoint() {
		console.warn('THREE.Curve: .getPoint() not implemented.');
		return null;
	} // Get point at relative position in curve according to arc length
	// - u [0 .. 1]


	getPointAt(u, optionalTarget) {
		const t = this.getUtoTmapping(u);
		return this.getPoint(t, optionalTarget);
	} // Get sequence of points using getPoint( t )


	getPoints(divisions = 5) {
		const points = [];

		for (let d = 0; d <= divisions; d++) {
			points.push(this.getPoint(d / divisions));
		}

		return points;
	} // Get sequence of points using getPointAt( u )


	getSpacedPoints(divisions = 5) {
		const points = [];

		for (let d = 0; d <= divisions; d++) {
			points.push(this.getPointAt(d / divisions));
		}

		return points;
	} // Get total curve arc length


	getLength() {
		const lengths = this.getLengths();
		return lengths[lengths.length - 1];
	} // Get list of cumulative segment lengths


	getLengths(divisions = this.arcLengthDivisions) {
		if (this.cacheArcLengths && this.cacheArcLengths.length === divisions + 1 && !this.needsUpdate) {
			return this.cacheArcLengths;
		}

		this.needsUpdate = false;
		const cache = [];
		let current,
				last = this.getPoint(0);
		let sum = 0;
		cache.push(0);

		for (let p = 1; p <= divisions; p++) {
			current = this.getPoint(p / divisions);
			sum += current.distanceTo(last);
			cache.push(sum);
			last = current;
		}

		this.cacheArcLengths = cache;
		return cache; // { sums: cache, sum: sum }; Sum is in the last element.
	}

	updateArcLengths() {
		this.needsUpdate = true;
		this.getLengths();
	} // Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant


	getUtoTmapping(u, distance) {
		const arcLengths = this.getLengths();
		let i = 0;
		const il = arcLengths.length;
		let targetArcLength; // The targeted u distance value to get

		if (distance) {
			targetArcLength = distance;
		} else {
			targetArcLength = u * arcLengths[il - 1];
		} // binary search for the index with largest value smaller than target u distance


		let low = 0,
				high = il - 1,
				comparison;

		while (low <= high) {
			i = Math.floor(low + (high - low) / 2); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats

			comparison = arcLengths[i] - targetArcLength;

			if (comparison < 0) {
				low = i + 1;
			} else if (comparison > 0) {
				high = i - 1;
			} else {
				high = i;
				break; // DONE
			}
		}

		i = high;

		if (arcLengths[i] === targetArcLength) {
			return i / (il - 1);
		} // we could get finer grain at lengths, or use simple interpolation between two points


		const lengthBefore = arcLengths[i];
		const lengthAfter = arcLengths[i + 1];
		const segmentLength = lengthAfter - lengthBefore; // determine where we are between the 'before' and 'after' points

		const segmentFraction = (targetArcLength - lengthBefore) / segmentLength; // add that fractional amount to t

		const t = (i + segmentFraction) / (il - 1);
		return t;
	} // Returns a unit vector tangent at t
	// In case any sub curve does not implement its tangent derivation,
	// 2 points a small delta apart will be used to find its gradient
	// which seems to give a reasonable approximation


	getTangent(t, optionalTarget) {
		const delta = 0.0001;
		let t1 = t - delta;
		let t2 = t + delta; // Capping in case of danger

		if (t1 < 0) t1 = 0;
		if (t2 > 1) t2 = 1;
		const pt1 = this.getPoint(t1);
		const pt2 = this.getPoint(t2);
		const tangent = optionalTarget || (pt1.isVector2 ? new Vector2() : new Vector3());
		tangent.copy(pt2).sub(pt1).normalize();
		return tangent;
	}

	getTangentAt(u, optionalTarget) {
		const t = this.getUtoTmapping(u);
		return this.getTangent(t, optionalTarget);
	}

	computeFrenetFrames(segments, closed) {
		// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf
		const normal = new Vector3();
		const tangents = [];
		const normals = [];
		const binormals = [];
		const vec = new Vector3();
		const mat = new Matrix4(); // compute the tangent vectors for each segment on the curve

		for (let i = 0; i <= segments; i++) {
			const u = i / segments;
			tangents[i] = this.getTangentAt(u, new Vector3());
		} // select an initial normal vector perpendicular to the first tangent vector,
		// and in the direction of the minimum tangent xyz component


		normals[0] = new Vector3();
		binormals[0] = new Vector3();
		let min = Number.MAX_VALUE;
		const tx = Math.abs(tangents[0].x);
		const ty = Math.abs(tangents[0].y);
		const tz = Math.abs(tangents[0].z);

		if (tx <= min) {
			min = tx;
			normal.set(1, 0, 0);
		}

		if (ty <= min) {
			min = ty;
			normal.set(0, 1, 0);
		}

		if (tz <= min) {
			normal.set(0, 0, 1);
		}

		vec.crossVectors(tangents[0], normal).normalize();
		normals[0].crossVectors(tangents[0], vec);
		binormals[0].crossVectors(tangents[0], normals[0]); // compute the slowly-varying normal and binormal vectors for each segment on the curve

		for (let i = 1; i <= segments; i++) {
			normals[i] = normals[i - 1].clone();
			binormals[i] = binormals[i - 1].clone();
			vec.crossVectors(tangents[i - 1], tangents[i]);

			if (vec.length() > Number.EPSILON) {
				vec.normalize();
				const theta = Math.acos(clamp(tangents[i - 1].dot(tangents[i]), -1, 1)); // clamp for floating pt errors

				normals[i].applyMatrix4(mat.makeRotationAxis(vec, theta));
			}

			binormals[i].crossVectors(tangents[i], normals[i]);
		} // if the curve is closed, postprocess the vectors so the first and last normal vectors are the same


		if (closed === true) {
			let theta = Math.acos(clamp(normals[0].dot(normals[segments]), -1, 1));
			theta /= segments;

			if (tangents[0].dot(vec.crossVectors(normals[0], normals[segments])) > 0) {
				theta = -theta;
			}

			for (let i = 1; i <= segments; i++) {
				// twist a little...
				normals[i].applyMatrix4(mat.makeRotationAxis(tangents[i], theta * i));
				binormals[i].crossVectors(tangents[i], normals[i]);
			}
		}

		return {
			tangents: tangents,
			normals: normals,
			binormals: binormals
		};
	}

	clone() {
		return new this.constructor().copy(this);
	}

	copy(source) {
		this.arcLengthDivisions = source.arcLengthDivisions;
		return this;
	}

	toJSON() {
		const data = {
			metadata: {
				version: 4.5,
				type: 'Curve',
				generator: 'Curve.toJSON'
			}
		};
		data.arcLengthDivisions = this.arcLengthDivisions;
		data.type = this.type;
		return data;
	}

	fromJSON(json) {
		this.arcLengthDivisions = json.arcLengthDivisions;
		return this;
	}

}

class EllipseCurve extends Curve {
	constructor(aX = 0, aY = 0, xRadius = 1, yRadius = 1, aStartAngle = 0, aEndAngle = Math.PI * 2, aClockwise = false, aRotation = 0) {
		super();
		this.type = 'EllipseCurve';
		this.aX = aX;
		this.aY = aY;
		this.xRadius = xRadius;
		this.yRadius = yRadius;
		this.aStartAngle = aStartAngle;
		this.aEndAngle = aEndAngle;
		this.aClockwise = aClockwise;
		this.aRotation = aRotation;
	}

	getPoint(t, optionalTarget) {
		const point = optionalTarget || new Vector2();
		const twoPi = Math.PI * 2;
		let deltaAngle = this.aEndAngle - this.aStartAngle;
		const samePoints = Math.abs(deltaAngle) < Number.EPSILON; // ensures that deltaAngle is 0 .. 2 PI

		while (deltaAngle < 0) deltaAngle += twoPi;

		while (deltaAngle > twoPi) deltaAngle -= twoPi;

		if (deltaAngle < Number.EPSILON) {
			if (samePoints) {
				deltaAngle = 0;
			} else {
				deltaAngle = twoPi;
			}
		}

		if (this.aClockwise === true && !samePoints) {
			if (deltaAngle === twoPi) {
				deltaAngle = -twoPi;
			} else {
				deltaAngle = deltaAngle - twoPi;
			}
		}

		const angle = this.aStartAngle + t * deltaAngle;
		let x = this.aX + this.xRadius * Math.cos(angle);
		let y = this.aY + this.yRadius * Math.sin(angle);

		if (this.aRotation !== 0) {
			const cos = Math.cos(this.aRotation);
			const sin = Math.sin(this.aRotation);
			const tx = x - this.aX;
			const ty = y - this.aY; // Rotate the point about the center of the ellipse.

			x = tx * cos - ty * sin + this.aX;
			y = tx * sin + ty * cos + this.aY;
		}

		return point.set(x, y);
	}

	copy(source) {
		super.copy(source);
		this.aX = source.aX;
		this.aY = source.aY;
		this.xRadius = source.xRadius;
		this.yRadius = source.yRadius;
		this.aStartAngle = source.aStartAngle;
		this.aEndAngle = source.aEndAngle;
		this.aClockwise = source.aClockwise;
		this.aRotation = source.aRotation;
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.aX = this.aX;
		data.aY = this.aY;
		data.xRadius = this.xRadius;
		data.yRadius = this.yRadius;
		data.aStartAngle = this.aStartAngle;
		data.aEndAngle = this.aEndAngle;
		data.aClockwise = this.aClockwise;
		data.aRotation = this.aRotation;
		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.aX = json.aX;
		this.aY = json.aY;
		this.xRadius = json.xRadius;
		this.yRadius = json.yRadius;
		this.aStartAngle = json.aStartAngle;
		this.aEndAngle = json.aEndAngle;
		this.aClockwise = json.aClockwise;
		this.aRotation = json.aRotation;
		return this;
	}

}

EllipseCurve.prototype.isEllipseCurve = true;

class ArcCurve extends EllipseCurve {
	constructor(aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
		super(aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise);
		this.type = 'ArcCurve';
	}

}

ArcCurve.prototype.isArcCurve = true;

/**
 * Centripetal CatmullRom Curve - which is useful for avoiding
 * cusps and self-intersections in non-uniform catmull rom curves.
 * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
 *
 * curve.type accepts centripetal(default), chordal and catmullrom
 * curve.tension is used for catmullrom which defaults to 0.5
 */

/*
Based on an optimized c++ solution in
 - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
 - http://ideone.com/NoEbVM

This CubicPoly class could be used for reusing some variables and calculations,
but for three.js curve use, it could be possible inlined and flatten into a single function call
which can be placed in CurveUtils.
*/

function CubicPoly() {
	let c0 = 0,
			c1 = 0,
			c2 = 0,
			c3 = 0;
	/*
	 * Compute coefficients for a cubic polynomial
	 *	 p(s) = c0 + c1*s + c2*s^2 + c3*s^3
	 * such that
	 *	 p(0) = x0, p(1) = x1
	 *	and
	 *	 p'(0) = t0, p'(1) = t1.
	 */

	function init(x0, x1, t0, t1) {
		c0 = x0;
		c1 = t0;
		c2 = -3 * x0 + 3 * x1 - 2 * t0 - t1;
		c3 = 2 * x0 - 2 * x1 + t0 + t1;
	}

	return {
		initCatmullRom: function (x0, x1, x2, x3, tension) {
			init(x1, x2, tension * (x2 - x0), tension * (x3 - x1));
		},
		initNonuniformCatmullRom: function (x0, x1, x2, x3, dt0, dt1, dt2) {
			// compute tangents when parameterized in [t1,t2]
			let t1 = (x1 - x0) / dt0 - (x2 - x0) / (dt0 + dt1) + (x2 - x1) / dt1;
			let t2 = (x2 - x1) / dt1 - (x3 - x1) / (dt1 + dt2) + (x3 - x2) / dt2; // rescale tangents for parametrization in [0,1]

			t1 *= dt1;
			t2 *= dt1;
			init(x1, x2, t1, t2);
		},
		calc: function (t) {
			const t2 = t * t;
			const t3 = t2 * t;
			return c0 + c1 * t + c2 * t2 + c3 * t3;
		}
	};
} //


const tmp = new Vector3();
const px = new CubicPoly(),
			py = new CubicPoly(),
			pz = new CubicPoly();

class CatmullRomCurve3 extends Curve {
	constructor(points = [], closed = false, curveType = 'centripetal', tension = 0.5) {
		super();
		this.type = 'CatmullRomCurve3';
		this.points = points;
		this.closed = closed;
		this.curveType = curveType;
		this.tension = tension;
	}

	getPoint(t, optionalTarget = new Vector3()) {
		const point = optionalTarget;
		const points = this.points;
		const l = points.length;
		const p = (l - (this.closed ? 0 : 1)) * t;
		let intPoint = Math.floor(p);
		let weight = p - intPoint;

		if (this.closed) {
			intPoint += intPoint > 0 ? 0 : (Math.floor(Math.abs(intPoint) / l) + 1) * l;
		} else if (weight === 0 && intPoint === l - 1) {
			intPoint = l - 2;
			weight = 1;
		}

		let p0, p3; // 4 points (p1 & p2 defined below)

		if (this.closed || intPoint > 0) {
			p0 = points[(intPoint - 1) % l];
		} else {
			// extrapolate first point
			tmp.subVectors(points[0], points[1]).add(points[0]);
			p0 = tmp;
		}

		const p1 = points[intPoint % l];
		const p2 = points[(intPoint + 1) % l];

		if (this.closed || intPoint + 2 < l) {
			p3 = points[(intPoint + 2) % l];
		} else {
			// extrapolate last point
			tmp.subVectors(points[l - 1], points[l - 2]).add(points[l - 1]);
			p3 = tmp;
		}

		if (this.curveType === 'centripetal' || this.curveType === 'chordal') {
			// init Centripetal / Chordal Catmull-Rom
			const pow = this.curveType === 'chordal' ? 0.5 : 0.25;
			let dt0 = Math.pow(p0.distanceToSquared(p1), pow);
			let dt1 = Math.pow(p1.distanceToSquared(p2), pow);
			let dt2 = Math.pow(p2.distanceToSquared(p3), pow); // safety check for repeated points

			if (dt1 < 1e-4) dt1 = 1.0;
			if (dt0 < 1e-4) dt0 = dt1;
			if (dt2 < 1e-4) dt2 = dt1;
			px.initNonuniformCatmullRom(p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2);
			py.initNonuniformCatmullRom(p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2);
			pz.initNonuniformCatmullRom(p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2);
		} else if (this.curveType === 'catmullrom') {
			px.initCatmullRom(p0.x, p1.x, p2.x, p3.x, this.tension);
			py.initCatmullRom(p0.y, p1.y, p2.y, p3.y, this.tension);
			pz.initCatmullRom(p0.z, p1.z, p2.z, p3.z, this.tension);
		}

		point.set(px.calc(weight), py.calc(weight), pz.calc(weight));
		return point;
	}

	copy(source) {
		super.copy(source);
		this.points = [];

		for (let i = 0, l = source.points.length; i < l; i++) {
			const point = source.points[i];
			this.points.push(point.clone());
		}

		this.closed = source.closed;
		this.curveType = source.curveType;
		this.tension = source.tension;
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.points = [];

		for (let i = 0, l = this.points.length; i < l; i++) {
			const point = this.points[i];
			data.points.push(point.toArray());
		}

		data.closed = this.closed;
		data.curveType = this.curveType;
		data.tension = this.tension;
		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.points = [];

		for (let i = 0, l = json.points.length; i < l; i++) {
			const point = json.points[i];
			this.points.push(new Vector3().fromArray(point));
		}

		this.closed = json.closed;
		this.curveType = json.curveType;
		this.tension = json.tension;
		return this;
	}

}

CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;

/**
 * Bezier Curves formulas obtained from
 * https://en.wikipedia.org/wiki/B%C3%A9zier_curve
 */
function CatmullRom(t, p0, p1, p2, p3) {
	const v0 = (p2 - p0) * 0.5;
	const v1 = (p3 - p1) * 0.5;
	const t2 = t * t;
	const t3 = t * t2;
	return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (-3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
} //


function QuadraticBezierP0(t, p) {
	const k = 1 - t;
	return k * k * p;
}

function QuadraticBezierP1(t, p) {
	return 2 * (1 - t) * t * p;
}

function QuadraticBezierP2(t, p) {
	return t * t * p;
}

function QuadraticBezier(t, p0, p1, p2) {
	return QuadraticBezierP0(t, p0) + QuadraticBezierP1(t, p1) + QuadraticBezierP2(t, p2);
} //


function CubicBezierP0(t, p) {
	const k = 1 - t;
	return k * k * k * p;
}

function CubicBezierP1(t, p) {
	const k = 1 - t;
	return 3 * k * k * t * p;
}

function CubicBezierP2(t, p) {
	return 3 * (1 - t) * t * t * p;
}

function CubicBezierP3(t, p) {
	return t * t * t * p;
}

function CubicBezier(t, p0, p1, p2, p3) {
	return CubicBezierP0(t, p0) + CubicBezierP1(t, p1) + CubicBezierP2(t, p2) + CubicBezierP3(t, p3);
}

class CubicBezierCurve extends Curve {
	constructor(v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2(), v3 = new Vector2()) {
		super();
		this.type = 'CubicBezierCurve';
		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;
		this.v3 = v3;
	}

	getPoint(t, optionalTarget = new Vector2()) {
		const point = optionalTarget;
		const v0 = this.v0,
					v1 = this.v1,
					v2 = this.v2,
					v3 = this.v3;
		point.set(CubicBezier(t, v0.x, v1.x, v2.x, v3.x), CubicBezier(t, v0.y, v1.y, v2.y, v3.y));
		return point;
	}

	copy(source) {
		super.copy(source);
		this.v0.copy(source.v0);
		this.v1.copy(source.v1);
		this.v2.copy(source.v2);
		this.v3.copy(source.v3);
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		data.v3 = this.v3.toArray();
		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.v0.fromArray(json.v0);
		this.v1.fromArray(json.v1);
		this.v2.fromArray(json.v2);
		this.v3.fromArray(json.v3);
		return this;
	}

}

CubicBezierCurve.prototype.isCubicBezierCurve = true;

class CubicBezierCurve3 extends Curve {
	constructor(v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3(), v3 = new Vector3()) {
		super();
		this.type = 'CubicBezierCurve3';
		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;
		this.v3 = v3;
	}

	getPoint(t, optionalTarget = new Vector3()) {
		const point = optionalTarget;
		const v0 = this.v0,
					v1 = this.v1,
					v2 = this.v2,
					v3 = this.v3;
		point.set(CubicBezier(t, v0.x, v1.x, v2.x, v3.x), CubicBezier(t, v0.y, v1.y, v2.y, v3.y), CubicBezier(t, v0.z, v1.z, v2.z, v3.z));
		return point;
	}

	copy(source) {
		super.copy(source);
		this.v0.copy(source.v0);
		this.v1.copy(source.v1);
		this.v2.copy(source.v2);
		this.v3.copy(source.v3);
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		data.v3 = this.v3.toArray();
		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.v0.fromArray(json.v0);
		this.v1.fromArray(json.v1);
		this.v2.fromArray(json.v2);
		this.v3.fromArray(json.v3);
		return this;
	}

}

CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;

class LineCurve extends Curve {
	constructor(v1 = new Vector2(), v2 = new Vector2()) {
		super();
		this.type = 'LineCurve';
		this.v1 = v1;
		this.v2 = v2;
	}

	getPoint(t, optionalTarget = new Vector2()) {
		const point = optionalTarget;

		if (t === 1) {
			point.copy(this.v2);
		} else {
			point.copy(this.v2).sub(this.v1);
			point.multiplyScalar(t).add(this.v1);
		}

		return point;
	} // Line curve is linear, so we can overwrite default getPointAt


	getPointAt(u, optionalTarget) {
		return this.getPoint(u, optionalTarget);
	}

	getTangent(t, optionalTarget) {
		const tangent = optionalTarget || new Vector2();
		tangent.copy(this.v2).sub(this.v1).normalize();
		return tangent;
	}

	copy(source) {
		super.copy(source);
		this.v1.copy(source.v1);
		this.v2.copy(source.v2);
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.v1.fromArray(json.v1);
		this.v2.fromArray(json.v2);
		return this;
	}

}

LineCurve.prototype.isLineCurve = true;

class LineCurve3 extends Curve {
	constructor(v1 = new Vector3(), v2 = new Vector3()) {
		super();
		this.type = 'LineCurve3';
		this.isLineCurve3 = true;
		this.v1 = v1;
		this.v2 = v2;
	}

	getPoint(t, optionalTarget = new Vector3()) {
		const point = optionalTarget;

		if (t === 1) {
			point.copy(this.v2);
		} else {
			point.copy(this.v2).sub(this.v1);
			point.multiplyScalar(t).add(this.v1);
		}

		return point;
	} // Line curve is linear, so we can overwrite default getPointAt


	getPointAt(u, optionalTarget) {
		return this.getPoint(u, optionalTarget);
	}

	copy(source) {
		super.copy(source);
		this.v1.copy(source.v1);
		this.v2.copy(source.v2);
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.v1.fromArray(json.v1);
		this.v2.fromArray(json.v2);
		return this;
	}

}

class QuadraticBezierCurve extends Curve {
	constructor(v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2()) {
		super();
		this.type = 'QuadraticBezierCurve';
		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;
	}

	getPoint(t, optionalTarget = new Vector2()) {
		const point = optionalTarget;
		const v0 = this.v0,
					v1 = this.v1,
					v2 = this.v2;
		point.set(QuadraticBezier(t, v0.x, v1.x, v2.x), QuadraticBezier(t, v0.y, v1.y, v2.y));
		return point;
	}

	copy(source) {
		super.copy(source);
		this.v0.copy(source.v0);
		this.v1.copy(source.v1);
		this.v2.copy(source.v2);
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.v0.fromArray(json.v0);
		this.v1.fromArray(json.v1);
		this.v2.fromArray(json.v2);
		return this;
	}

}

QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;

class QuadraticBezierCurve3 extends Curve {
	constructor(v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3()) {
		super();
		this.type = 'QuadraticBezierCurve3';
		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;
	}

	getPoint(t, optionalTarget = new Vector3()) {
		const point = optionalTarget;
		const v0 = this.v0,
					v1 = this.v1,
					v2 = this.v2;
		point.set(QuadraticBezier(t, v0.x, v1.x, v2.x), QuadraticBezier(t, v0.y, v1.y, v2.y), QuadraticBezier(t, v0.z, v1.z, v2.z));
		return point;
	}

	copy(source) {
		super.copy(source);
		this.v0.copy(source.v0);
		this.v1.copy(source.v1);
		this.v2.copy(source.v2);
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.v0.fromArray(json.v0);
		this.v1.fromArray(json.v1);
		this.v2.fromArray(json.v2);
		return this;
	}

}

QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;

class SplineCurve extends Curve {
	constructor(points = []) {
		super();
		this.type = 'SplineCurve';
		this.points = points;
	}

	getPoint(t, optionalTarget = new Vector2()) {
		const point = optionalTarget;
		const points = this.points;
		const p = (points.length - 1) * t;
		const intPoint = Math.floor(p);
		const weight = p - intPoint;
		const p0 = points[intPoint === 0 ? intPoint : intPoint - 1];
		const p1 = points[intPoint];
		const p2 = points[intPoint > points.length - 2 ? points.length - 1 : intPoint + 1];
		const p3 = points[intPoint > points.length - 3 ? points.length - 1 : intPoint + 2];
		point.set(CatmullRom(weight, p0.x, p1.x, p2.x, p3.x), CatmullRom(weight, p0.y, p1.y, p2.y, p3.y));
		return point;
	}

	copy(source) {
		super.copy(source);
		this.points = [];

		for (let i = 0, l = source.points.length; i < l; i++) {
			const point = source.points[i];
			this.points.push(point.clone());
		}

		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.points = [];

		for (let i = 0, l = this.points.length; i < l; i++) {
			const point = this.points[i];
			data.points.push(point.toArray());
		}

		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.points = [];

		for (let i = 0, l = json.points.length; i < l; i++) {
			const point = json.points[i];
			this.points.push(new Vector2().fromArray(point));
		}

		return this;
	}

}

SplineCurve.prototype.isSplineCurve = true;

var Curves = /*#__PURE__*/Object.freeze({
	__proto__: null,
	ArcCurve: ArcCurve,
	CatmullRomCurve3: CatmullRomCurve3,
	CubicBezierCurve: CubicBezierCurve,
	CubicBezierCurve3: CubicBezierCurve3,
	EllipseCurve: EllipseCurve,
	LineCurve: LineCurve,
	LineCurve3: LineCurve3,
	QuadraticBezierCurve: QuadraticBezierCurve,
	QuadraticBezierCurve3: QuadraticBezierCurve3,
	SplineCurve: SplineCurve
});

/**************************************************************
 *	Curved Path - a curve path is simply a array of connected
 *	curves, but retains the api of a curve
 **************************************************************/

class CurvePath extends Curve {
	constructor() {
		super();
		this.type = 'CurvePath';
		this.curves = [];
		this.autoClose = false; // Automatically closes the path
	}

	add(curve) {
		this.curves.push(curve);
	}

	closePath() {
		// Add a line curve if start and end of lines are not connected
		const startPoint = this.curves[0].getPoint(0);
		const endPoint = this.curves[this.curves.length - 1].getPoint(1);

		if (!startPoint.equals(endPoint)) {
			this.curves.push(new LineCurve(endPoint, startPoint));
		}
	} // To get accurate point with reference to
	// entire path distance at time t,
	// following has to be done:
	// 1. Length of each sub path have to be known
	// 2. Locate and identify type of curve
	// 3. Get t for the curve
	// 4. Return curve.getPointAt(t')


	getPoint(t, optionalTarget) {
		const d = t * this.getLength();
		const curveLengths = this.getCurveLengths();
		let i = 0; // To think about boundaries points.

		while (i < curveLengths.length) {
			if (curveLengths[i] >= d) {
				const diff = curveLengths[i] - d;
				const curve = this.curves[i];
				const segmentLength = curve.getLength();
				const u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;
				return curve.getPointAt(u, optionalTarget);
			}

			i++;
		}

		return null; // loop where sum != 0, sum > d , sum+1 <d
	} // We cannot use the default THREE.Curve getPoint() with getLength() because in
	// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
	// getPoint() depends on getLength


	getLength() {
		const lens = this.getCurveLengths();
		return lens[lens.length - 1];
	} // cacheLengths must be recalculated.


	updateArcLengths() {
		this.needsUpdate = true;
		this.cacheLengths = null;
		this.getCurveLengths();
	} // Compute lengths and cache them
	// We cannot overwrite getLengths() because UtoT mapping uses it.


	getCurveLengths() {
		// We use cache values if curves and cache array are same length
		if (this.cacheLengths && this.cacheLengths.length === this.curves.length) {
			return this.cacheLengths;
		} // Get length of sub-curve
		// Push sums into cached array


		const lengths = [];
		let sums = 0;

		for (let i = 0, l = this.curves.length; i < l; i++) {
			sums += this.curves[i].getLength();
			lengths.push(sums);
		}

		this.cacheLengths = lengths;
		return lengths;
	}

	getSpacedPoints(divisions = 40) {
		const points = [];

		for (let i = 0; i <= divisions; i++) {
			points.push(this.getPoint(i / divisions));
		}

		if (this.autoClose) {
			points.push(points[0]);
		}

		return points;
	}

	getPoints(divisions = 12) {
		const points = [];
		let last;

		for (let i = 0, curves = this.curves; i < curves.length; i++) {
			const curve = curves[i];
			const resolution = curve && curve.isEllipseCurve ? divisions * 2 : curve && (curve.isLineCurve || curve.isLineCurve3) ? 1 : curve && curve.isSplineCurve ? divisions * curve.points.length : divisions;
			const pts = curve.getPoints(resolution);

			for (let j = 0; j < pts.length; j++) {
				const point = pts[j];
				if (last && last.equals(point)) continue; // ensures no consecutive points are duplicates

				points.push(point);
				last = point;
			}
		}

		if (this.autoClose && points.length > 1 && !points[points.length - 1].equals(points[0])) {
			points.push(points[0]);
		}

		return points;
	}

	copy(source) {
		super.copy(source);
		this.curves = [];

		for (let i = 0, l = source.curves.length; i < l; i++) {
			const curve = source.curves[i];
			this.curves.push(curve.clone());
		}

		this.autoClose = source.autoClose;
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.autoClose = this.autoClose;
		data.curves = [];

		for (let i = 0, l = this.curves.length; i < l; i++) {
			const curve = this.curves[i];
			data.curves.push(curve.toJSON());
		}

		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.autoClose = json.autoClose;
		this.curves = [];

		for (let i = 0, l = json.curves.length; i < l; i++) {
			const curve = json.curves[i];
			this.curves.push(new Curves[curve.type]().fromJSON(curve));
		}

		return this;
	}

}

class Path extends CurvePath {
	constructor(points) {
		super();
		this.type = 'Path';
		this.currentPoint = new Vector2();

		if (points) {
			this.setFromPoints(points);
		}
	}

	setFromPoints(points) {
		this.moveTo(points[0].x, points[0].y);

		for (let i = 1, l = points.length; i < l; i++) {
			this.lineTo(points[i].x, points[i].y);
		}

		return this;
	}

	moveTo(x, y) {
		this.currentPoint.set(x, y); // TODO consider referencing vectors instead of copying?

		return this;
	}

	lineTo(x, y) {
		const curve = new LineCurve(this.currentPoint.clone(), new Vector2(x, y));
		this.curves.push(curve);
		this.currentPoint.set(x, y);
		return this;
	}

	quadraticCurveTo(aCPx, aCPy, aX, aY) {
		const curve = new QuadraticBezierCurve(this.currentPoint.clone(), new Vector2(aCPx, aCPy), new Vector2(aX, aY));
		this.curves.push(curve);
		this.currentPoint.set(aX, aY);
		return this;
	}

	bezierCurveTo(aCP1x, aCP1y, aCP2x, aCP2y, aX, aY) {
		const curve = new CubicBezierCurve(this.currentPoint.clone(), new Vector2(aCP1x, aCP1y), new Vector2(aCP2x, aCP2y), new Vector2(aX, aY));
		this.curves.push(curve);
		this.currentPoint.set(aX, aY);
		return this;
	}

	splineThru(pts
	/*Array of Vector*/
	) {
		const npts = [this.currentPoint.clone()].concat(pts);
		const curve = new SplineCurve(npts);
		this.curves.push(curve);
		this.currentPoint.copy(pts[pts.length - 1]);
		return this;
	}

	arc(aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
		const x0 = this.currentPoint.x;
		const y0 = this.currentPoint.y;
		this.absarc(aX + x0, aY + y0, aRadius, aStartAngle, aEndAngle, aClockwise);
		return this;
	}

	absarc(aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise) {
		this.absellipse(aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise);
		return this;
	}

	ellipse(aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation) {
		const x0 = this.currentPoint.x;
		const y0 = this.currentPoint.y;
		this.absellipse(aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation);
		return this;
	}

	absellipse(aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation) {
		const curve = new EllipseCurve(aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation);

		if (this.curves.length > 0) {
			// if a previous curve is present, attempt to join
			const firstPoint = curve.getPoint(0);

			if (!firstPoint.equals(this.currentPoint)) {
				this.lineTo(firstPoint.x, firstPoint.y);
			}
		}

		this.curves.push(curve);
		const lastPoint = curve.getPoint(1);
		this.currentPoint.copy(lastPoint);
		return this;
	}

	copy(source) {
		super.copy(source);
		this.currentPoint.copy(source.currentPoint);
		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.currentPoint = this.currentPoint.toArray();
		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.currentPoint.fromArray(json.currentPoint);
		return this;
	}

}

class Shape extends Path {
	constructor(points) {
		super(points);
		this.uuid = generateUUID();
		this.type = 'Shape';
		this.holes = [];
	}

	getPointsHoles(divisions) {
		const holesPts = [];

		for (let i = 0, l = this.holes.length; i < l; i++) {
			holesPts[i] = this.holes[i].getPoints(divisions);
		}

		return holesPts;
	} // get points of shape and holes (keypoints based on segments parameter)


	extractPoints(divisions) {
		return {
			shape: this.getPoints(divisions),
			holes: this.getPointsHoles(divisions)
		};
	}

	copy(source) {
		super.copy(source);
		this.holes = [];

		for (let i = 0, l = source.holes.length; i < l; i++) {
			const hole = source.holes[i];
			this.holes.push(hole.clone());
		}

		return this;
	}

	toJSON() {
		const data = super.toJSON();
		data.uuid = this.uuid;
		data.holes = [];

		for (let i = 0, l = this.holes.length; i < l; i++) {
			const hole = this.holes[i];
			data.holes.push(hole.toJSON());
		}

		return data;
	}

	fromJSON(json) {
		super.fromJSON(json);
		this.uuid = json.uuid;
		this.holes = [];

		for (let i = 0, l = json.holes.length; i < l; i++) {
			const hole = json.holes[i];
			this.holes.push(new Path().fromJSON(hole));
		}

		return this;
	}

}

/**
 * Port from https://github.com/mapbox/earcut (v2.2.2)
 */
const Earcut = {
	triangulate: function (data, holeIndices, dim = 2) {
		const hasHoles = holeIndices && holeIndices.length;
		const outerLen = hasHoles ? holeIndices[0] * dim : data.length;
		let outerNode = linkedList(data, 0, outerLen, dim, true);
		const triangles = [];
		if (!outerNode || outerNode.next === outerNode.prev) return triangles;
		let minX, minY, maxX, maxY, x, y, invSize;
		if (hasHoles) outerNode = eliminateHoles(data, holeIndices, outerNode, dim); // if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox

		if (data.length > 80 * dim) {
			minX = maxX = data[0];
			minY = maxY = data[1];

			for (let i = dim; i < outerLen; i += dim) {
				x = data[i];
				y = data[i + 1];
				if (x < minX) minX = x;
				if (y < minY) minY = y;
				if (x > maxX) maxX = x;
				if (y > maxY) maxY = y;
			} // minX, minY and invSize are later used to transform coords into integers for z-order calculation


			invSize = Math.max(maxX - minX, maxY - minY);
			invSize = invSize !== 0 ? 1 / invSize : 0;
		}

		earcutLinked(outerNode, triangles, dim, minX, minY, invSize);
		return triangles;
	}
}; // create a circular doubly linked list from polygon points in the specified winding order

function linkedList(data, start, end, dim, clockwise) {
	let i, last;

	if (clockwise === signedArea(data, start, end, dim) > 0) {
		for (i = start; i < end; i += dim) last = insertNode(i, data[i], data[i + 1], last);
	} else {
		for (i = end - dim; i >= start; i -= dim) last = insertNode(i, data[i], data[i + 1], last);
	}

	if (last && equals(last, last.next)) {
		removeNode(last);
		last = last.next;
	}

	return last;
} // eliminate colinear or duplicate points


function filterPoints(start, end) {
	if (!start) return start;
	if (!end) end = start;
	let p = start,
			again;

	do {
		again = false;

		if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) {
			removeNode(p);
			p = end = p.prev;
			if (p === p.next) break;
			again = true;
		} else {
			p = p.next;
		}
	} while (again || p !== end);

	return end;
} // main ear slicing loop which triangulates a polygon (given as a linked list)


function earcutLinked(ear, triangles, dim, minX, minY, invSize, pass) {
	if (!ear) return; // interlink polygon nodes in z-order

	if (!pass && invSize) indexCurve(ear, minX, minY, invSize);
	let stop = ear,
			prev,
			next; // iterate through ears, slicing them one by one

	while (ear.prev !== ear.next) {
		prev = ear.prev;
		next = ear.next;

		if (invSize ? isEarHashed(ear, minX, minY, invSize) : isEar(ear)) {
			// cut off the triangle
			triangles.push(prev.i / dim);
			triangles.push(ear.i / dim);
			triangles.push(next.i / dim);
			removeNode(ear); // skipping the next vertex leads to less sliver triangles

			ear = next.next;
			stop = next.next;
			continue;
		}

		ear = next; // if we looped through the whole remaining polygon and can't find any more ears

		if (ear === stop) {
			// try filtering points and slicing again
			if (!pass) {
				earcutLinked(filterPoints(ear), triangles, dim, minX, minY, invSize, 1); // if this didn't work, try curing all small self-intersections locally
			} else if (pass === 1) {
				ear = cureLocalIntersections(filterPoints(ear), triangles, dim);
				earcutLinked(ear, triangles, dim, minX, minY, invSize, 2); // as a last resort, try splitting the remaining polygon into two
			} else if (pass === 2) {
				splitEarcut(ear, triangles, dim, minX, minY, invSize);
			}

			break;
		}
	}
} // check whether a polygon node forms a valid ear with adjacent nodes


function isEar(ear) {
	const a = ear.prev,
				b = ear,
				c = ear.next;
	if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
	// now make sure we don't have other points inside the potential ear

	let p = ear.next.next;

	while (p !== ear.prev) {
		if (pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
		p = p.next;
	}

	return true;
}

function isEarHashed(ear, minX, minY, invSize) {
	const a = ear.prev,
				b = ear,
				c = ear.next;
	if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
	// triangle bbox; min & max are calculated like this for speed

	const minTX = a.x < b.x ? a.x < c.x ? a.x : c.x : b.x < c.x ? b.x : c.x,
				minTY = a.y < b.y ? a.y < c.y ? a.y : c.y : b.y < c.y ? b.y : c.y,
				maxTX = a.x > b.x ? a.x > c.x ? a.x : c.x : b.x > c.x ? b.x : c.x,
				maxTY = a.y > b.y ? a.y > c.y ? a.y : c.y : b.y > c.y ? b.y : c.y; // z-order range for the current triangle bbox;

	const minZ = zOrder(minTX, minTY, minX, minY, invSize),
				maxZ = zOrder(maxTX, maxTY, minX, minY, invSize);
	let p = ear.prevZ,
			n = ear.nextZ; // look for points inside the triangle in both directions

	while (p && p.z >= minZ && n && n.z <= maxZ) {
		if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
		p = p.prevZ;
		if (n !== ear.prev && n !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && area(n.prev, n, n.next) >= 0) return false;
		n = n.nextZ;
	} // look for remaining points in decreasing z-order


	while (p && p.z >= minZ) {
		if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
		p = p.prevZ;
	} // look for remaining points in increasing z-order


	while (n && n.z <= maxZ) {
		if (n !== ear.prev && n !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y) && area(n.prev, n, n.next) >= 0) return false;
		n = n.nextZ;
	}

	return true;
} // go through all polygon nodes and cure small local self-intersections


function cureLocalIntersections(start, triangles, dim) {
	let p = start;

	do {
		const a = p.prev,
					b = p.next.next;

		if (!equals(a, b) && intersects(a, p, p.next, b) && locallyInside(a, b) && locallyInside(b, a)) {
			triangles.push(a.i / dim);
			triangles.push(p.i / dim);
			triangles.push(b.i / dim); // remove two nodes involved

			removeNode(p);
			removeNode(p.next);
			p = start = b;
		}

		p = p.next;
	} while (p !== start);

	return filterPoints(p);
} // try splitting polygon into two and triangulate them independently


function splitEarcut(start, triangles, dim, minX, minY, invSize) {
	// look for a valid diagonal that divides the polygon into two
	let a = start;

	do {
		let b = a.next.next;

		while (b !== a.prev) {
			if (a.i !== b.i && isValidDiagonal(a, b)) {
				// split the polygon in two by the diagonal
				let c = splitPolygon(a, b); // filter colinear points around the cuts

				a = filterPoints(a, a.next);
				c = filterPoints(c, c.next); // run earcut on each half

				earcutLinked(a, triangles, dim, minX, minY, invSize);
				earcutLinked(c, triangles, dim, minX, minY, invSize);
				return;
			}

			b = b.next;
		}

		a = a.next;
	} while (a !== start);
} // link every hole into the outer loop, producing a single-ring polygon without holes


function eliminateHoles(data, holeIndices, outerNode, dim) {
	const queue = [];
	let i, len, start, end, list;

	for (i = 0, len = holeIndices.length; i < len; i++) {
		start = holeIndices[i] * dim;
		end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
		list = linkedList(data, start, end, dim, false);
		if (list === list.next) list.steiner = true;
		queue.push(getLeftmost(list));
	}

	queue.sort(compareX); // process holes from left to right

	for (i = 0; i < queue.length; i++) {
		eliminateHole(queue[i], outerNode);
		outerNode = filterPoints(outerNode, outerNode.next);
	}

	return outerNode;
}

function compareX(a, b) {
	return a.x - b.x;
} // find a bridge between vertices that connects hole with an outer ring and and link it


function eliminateHole(hole, outerNode) {
	outerNode = findHoleBridge(hole, outerNode);

	if (outerNode) {
		const b = splitPolygon(outerNode, hole); // filter collinear points around the cuts

		filterPoints(outerNode, outerNode.next);
		filterPoints(b, b.next);
	}
} // David Eberly's algorithm for finding a bridge between hole and outer polygon


function findHoleBridge(hole, outerNode) {
	let p = outerNode;
	const hx = hole.x;
	const hy = hole.y;
	let qx = -Infinity,
			m; // find a segment intersected by a ray from the hole's leftmost point to the left;
	// segment's endpoint with lesser x will be potential connection point

	do {
		if (hy <= p.y && hy >= p.next.y && p.next.y !== p.y) {
			const x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y);

			if (x <= hx && x > qx) {
				qx = x;

				if (x === hx) {
					if (hy === p.y) return p;
					if (hy === p.next.y) return p.next;
				}

				m = p.x < p.next.x ? p : p.next;
			}
		}

		p = p.next;
	} while (p !== outerNode);

	if (!m) return null;
	if (hx === qx) return m; // hole touches outer segment; pick leftmost endpoint
	// look for points inside the triangle of hole point, segment intersection and endpoint;
	// if there are no points found, we have a valid connection;
	// otherwise choose the point of the minimum angle with the ray as connection point

	const stop = m,
				mx = m.x,
				my = m.y;
	let tanMin = Infinity,
			tan;
	p = m;

	do {
		if (hx >= p.x && p.x >= mx && hx !== p.x && pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) {
			tan = Math.abs(hy - p.y) / (hx - p.x); // tangential

			if (locallyInside(p, hole) && (tan < tanMin || tan === tanMin && (p.x > m.x || p.x === m.x && sectorContainsSector(m, p)))) {
				m = p;
				tanMin = tan;
			}
		}

		p = p.next;
	} while (p !== stop);

	return m;
} // whether sector in vertex m contains sector in vertex p in the same coordinates


function sectorContainsSector(m, p) {
	return area(m.prev, m, p.prev) < 0 && area(p.next, m, m.next) < 0;
} // interlink polygon nodes in z-order


function indexCurve(start, minX, minY, invSize) {
	let p = start;

	do {
		if (p.z === null) p.z = zOrder(p.x, p.y, minX, minY, invSize);
		p.prevZ = p.prev;
		p.nextZ = p.next;
		p = p.next;
	} while (p !== start);

	p.prevZ.nextZ = null;
	p.prevZ = null;
	sortLinked(p);
} // Simon Tatham's linked list merge sort algorithm
// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html


function sortLinked(list) {
	let i,
			p,
			q,
			e,
			tail,
			numMerges,
			pSize,
			qSize,
			inSize = 1;

	do {
		p = list;
		list = null;
		tail = null;
		numMerges = 0;

		while (p) {
			numMerges++;
			q = p;
			pSize = 0;

			for (i = 0; i < inSize; i++) {
				pSize++;
				q = q.nextZ;
				if (!q) break;
			}

			qSize = inSize;

			while (pSize > 0 || qSize > 0 && q) {
				if (pSize !== 0 && (qSize === 0 || !q || p.z <= q.z)) {
					e = p;
					p = p.nextZ;
					pSize--;
				} else {
					e = q;
					q = q.nextZ;
					qSize--;
				}

				if (tail) tail.nextZ = e;else list = e;
				e.prevZ = tail;
				tail = e;
			}

			p = q;
		}

		tail.nextZ = null;
		inSize *= 2;
	} while (numMerges > 1);

	return list;
} // z-order of a point given coords and inverse of the longer side of data bbox


function zOrder(x, y, minX, minY, invSize) {
	// coords are transformed into non-negative 15-bit integer range
	x = 32767 * (x - minX) * invSize;
	y = 32767 * (y - minY) * invSize;
	x = (x | x << 8) & 0x00FF00FF;
	x = (x | x << 4) & 0x0F0F0F0F;
	x = (x | x << 2) & 0x33333333;
	x = (x | x << 1) & 0x55555555;
	y = (y | y << 8) & 0x00FF00FF;
	y = (y | y << 4) & 0x0F0F0F0F;
	y = (y | y << 2) & 0x33333333;
	y = (y | y << 1) & 0x55555555;
	return x | y << 1;
} // find the leftmost node of a polygon ring


function getLeftmost(start) {
	let p = start,
			leftmost = start;

	do {
		if (p.x < leftmost.x || p.x === leftmost.x && p.y < leftmost.y) leftmost = p;
		p = p.next;
	} while (p !== start);

	return leftmost;
} // check if a point lies within a convex triangle


function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) {
	return (cx - px) * (ay - py) - (ax - px) * (cy - py) >= 0 && (ax - px) * (by - py) - (bx - px) * (ay - py) >= 0 && (bx - px) * (cy - py) - (cx - px) * (by - py) >= 0;
} // check if a diagonal between two polygon nodes is valid (lies in polygon interior)


function isValidDiagonal(a, b) {
	return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && ( // dones't intersect other edges
	locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b) && ( // locally visible
	area(a.prev, a, b.prev) || area(a, b.prev, b)) || // does not create opposite-facing sectors
	equals(a, b) && area(a.prev, a, a.next) > 0 && area(b.prev, b, b.next) > 0); // special zero-length case
} // signed area of a triangle


function area(p, q, r) {
	return (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y);
} // check if two points are equal


function equals(p1, p2) {
	return p1.x === p2.x && p1.y === p2.y;
} // check if two segments intersect


function intersects(p1, q1, p2, q2) {
	const o1 = sign(area(p1, q1, p2));
	const o2 = sign(area(p1, q1, q2));
	const o3 = sign(area(p2, q2, p1));
	const o4 = sign(area(p2, q2, q1));
	if (o1 !== o2 && o3 !== o4) return true; // general case

	if (o1 === 0 && onSegment(p1, p2, q1)) return true; // p1, q1 and p2 are collinear and p2 lies on p1q1

	if (o2 === 0 && onSegment(p1, q2, q1)) return true; // p1, q1 and q2 are collinear and q2 lies on p1q1

	if (o3 === 0 && onSegment(p2, p1, q2)) return true; // p2, q2 and p1 are collinear and p1 lies on p2q2

	if (o4 === 0 && onSegment(p2, q1, q2)) return true; // p2, q2 and q1 are collinear and q1 lies on p2q2

	return false;
} // for collinear points p, q, r, check if point q lies on segment pr


function onSegment(p, q, r) {
	return q.x <= Math.max(p.x, r.x) && q.x >= Math.min(p.x, r.x) && q.y <= Math.max(p.y, r.y) && q.y >= Math.min(p.y, r.y);
}

function sign(num) {
	return num > 0 ? 1 : num < 0 ? -1 : 0;
} // check if a polygon diagonal intersects any polygon segments


function intersectsPolygon(a, b) {
	let p = a;

	do {
		if (p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i && intersects(p, p.next, a, b)) return true;
		p = p.next;
	} while (p !== a);

	return false;
} // check if a polygon diagonal is locally inside the polygon


function locallyInside(a, b) {
	return area(a.prev, a, a.next) < 0 ? area(a, b, a.next) >= 0 && area(a, a.prev, b) >= 0 : area(a, b, a.prev) < 0 || area(a, a.next, b) < 0;
} // check if the middle point of a polygon diagonal is inside the polygon


function middleInside(a, b) {
	let p = a,
			inside = false;
	const px = (a.x + b.x) / 2,
				py = (a.y + b.y) / 2;

	do {
		if (p.y > py !== p.next.y > py && p.next.y !== p.y && px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x) inside = !inside;
		p = p.next;
	} while (p !== a);

	return inside;
} // link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
// if one belongs to the outer ring and another to a hole, it merges it into a single ring


function splitPolygon(a, b) {
	const a2 = new Node(a.i, a.x, a.y),
				b2 = new Node(b.i, b.x, b.y),
				an = a.next,
				bp = b.prev;
	a.next = b;
	b.prev = a;
	a2.next = an;
	an.prev = a2;
	b2.next = a2;
	a2.prev = b2;
	bp.next = b2;
	b2.prev = bp;
	return b2;
} // create a node and optionally link it with previous one (in a circular doubly linked list)


function insertNode(i, x, y, last) {
	const p = new Node(i, x, y);

	if (!last) {
		p.prev = p;
		p.next = p;
	} else {
		p.next = last.next;
		p.prev = last;
		last.next.prev = p;
		last.next = p;
	}

	return p;
}

function removeNode(p) {
	p.next.prev = p.prev;
	p.prev.next = p.next;
	if (p.prevZ) p.prevZ.nextZ = p.nextZ;
	if (p.nextZ) p.nextZ.prevZ = p.prevZ;
}

function Node(i, x, y) {
	// vertex index in coordinates array
	this.i = i; // vertex coordinates

	this.x = x;
	this.y = y; // previous and next vertex nodes in a polygon ring

	this.prev = null;
	this.next = null; // z-order curve value

	this.z = null; // previous and next nodes in z-order

	this.prevZ = null;
	this.nextZ = null; // indicates whether this is a steiner point

	this.steiner = false;
}

function signedArea(data, start, end, dim) {
	let sum = 0;

	for (let i = start, j = end - dim; i < end; i += dim) {
		sum += (data[j] - data[i]) * (data[i + 1] + data[j + 1]);
		j = i;
	}

	return sum;
}

class ShapeUtils {
	// calculate area of the contour polygon
	static area(contour) {
		const n = contour.length;
		let a = 0.0;

		for (let p = n - 1, q = 0; q < n; p = q++) {
			a += contour[p].x * contour[q].y - contour[q].x * contour[p].y;
		}

		return a * 0.5;
	}

	static isClockWise(pts) {
		return ShapeUtils.area(pts) < 0;
	}

	static triangulateShape(contour, holes) {
		const vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]

		const holeIndices = []; // array of hole indices

		const faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]

		removeDupEndPts(contour);
		addContour(vertices, contour); //

		let holeIndex = contour.length;
		holes.forEach(removeDupEndPts);

		for (let i = 0; i < holes.length; i++) {
			holeIndices.push(holeIndex);
			holeIndex += holes[i].length;
			addContour(vertices, holes[i]);
		} //


		const triangles = Earcut.triangulate(vertices, holeIndices); //

		for (let i = 0; i < triangles.length; i += 3) {
			faces.push(triangles.slice(i, i + 3));
		}

		return faces;
	}

}

function removeDupEndPts(points) {
	const l = points.length;

	if (l > 2 && points[l - 1].equals(points[0])) {
		points.pop();
	}
}

function addContour(vertices, contour) {
	for (let i = 0; i < contour.length; i++) {
		vertices.push(contour[i].x);
		vertices.push(contour[i].y);
	}
}

/**
 * Creates extruded geometry from a path shape.
 *
 * parameters = {
 *
 *	curveSegments: <int>, // number of points on the curves
 *	steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
 *	depth: <float>, // Depth to extrude the shape
 *
 *	bevelEnabled: <bool>, // turn on bevel
 *	bevelThickness: <float>, // how deep into the original shape bevel goes
 *	bevelSize: <float>, // how far from shape outline (including bevelOffset) is bevel
 *	bevelOffset: <float>, // how far from shape outline does bevel start
 *	bevelSegments: <int>, // number of bevel layers
 *
 *	extrudePath: <THREE.Curve> // curve to extrude shape along
 *
 *	UVGenerator: <Object> // object that provides UV generator functions
 *
 * }
 */

class ExtrudeGeometry extends BufferGeometry {
	constructor(shapes = new Shape([new Vector2(0.5, 0.5), new Vector2(-0.5, 0.5), new Vector2(-0.5, -0.5), new Vector2(0.5, -0.5)]), options = {}) {
		super();
		this.type = 'ExtrudeGeometry';
		this.parameters = {
			shapes: shapes,
			options: options
		};
		shapes = Array.isArray(shapes) ? shapes : [shapes];
		const scope = this;
		const verticesArray = [];
		const uvArray = [];

		for (let i = 0, l = shapes.length; i < l; i++) {
			const shape = shapes[i];
			addShape(shape);
		} // build geometry


		this.setAttribute('position', new Float32BufferAttribute(verticesArray, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvArray, 2));
		this.computeVertexNormals(); // functions

		function addShape(shape) {
			const placeholder = []; // options

			const curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
			const steps = options.steps !== undefined ? options.steps : 1;
			let depth = options.depth !== undefined ? options.depth : 1;
			let bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;
			let bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 0.2;
			let bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 0.1;
			let bevelOffset = options.bevelOffset !== undefined ? options.bevelOffset : 0;
			let bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;
			const extrudePath = options.extrudePath;
			const uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator; // deprecated options

			if (options.amount !== undefined) {
				console.warn('THREE.ExtrudeBufferGeometry: amount has been renamed to depth.');
				depth = options.amount;
			} //


			let extrudePts,
					extrudeByPath = false;
			let splineTube, binormal, normal, position2;

			if (extrudePath) {
				extrudePts = extrudePath.getSpacedPoints(steps);
				extrudeByPath = true;
				bevelEnabled = false; // bevels not supported for path extrusion
				// SETUP TNB variables
				// TODO1 - have a .isClosed in spline?

				splineTube = extrudePath.computeFrenetFrames(steps, false); // console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);

				binormal = new Vector3();
				normal = new Vector3();
				position2 = new Vector3();
			} // Safeguards if bevels are not enabled


			if (!bevelEnabled) {
				bevelSegments = 0;
				bevelThickness = 0;
				bevelSize = 0;
				bevelOffset = 0;
			} // Variables initialization


			const shapePoints = shape.extractPoints(curveSegments);
			let vertices = shapePoints.shape;
			const holes = shapePoints.holes;
			const reverse = !ShapeUtils.isClockWise(vertices);

			if (reverse) {
				vertices = vertices.reverse(); // Maybe we should also check if holes are in the opposite direction, just to be safe ...

				for (let h = 0, hl = holes.length; h < hl; h++) {
					const ahole = holes[h];

					if (ShapeUtils.isClockWise(ahole)) {
						holes[h] = ahole.reverse();
					}
				}
			}

			const faces = ShapeUtils.triangulateShape(vertices, holes);
			/* Vertices */

			const contour = vertices; // vertices has all points but contour has only points of circumference

			for (let h = 0, hl = holes.length; h < hl; h++) {
				const ahole = holes[h];
				vertices = vertices.concat(ahole);
			}

			function scalePt2(pt, vec, size) {
				if (!vec) console.error('THREE.ExtrudeGeometry: vec does not exist');
				return vec.clone().multiplyScalar(size).add(pt);
			}

			const vlen = vertices.length,
						flen = faces.length; // Find directions for point movement

			function getBevelVec(inPt, inPrev, inNext) {
				// computes for inPt the corresponding point inPt' on a new contour
				//	 shifted by 1 unit (length of normalized vector) to the left
				// if we walk along contour clockwise, this new contour is outside the old one
				//
				// inPt' is the intersection of the two lines parallel to the two
				//	adjacent edges of inPt at a distance of 1 unit on the left side.
				let v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt
				// good reading for geometry algorithms (here: line-line intersection)
				// http://geomalgorithms.com/a05-_intersect-1.html

				const v_prev_x = inPt.x - inPrev.x,
							v_prev_y = inPt.y - inPrev.y;
				const v_next_x = inNext.x - inPt.x,
							v_next_y = inNext.y - inPt.y;
				const v_prev_lensq = v_prev_x * v_prev_x + v_prev_y * v_prev_y; // check for collinear edges

				const collinear0 = v_prev_x * v_next_y - v_prev_y * v_next_x;

				if (Math.abs(collinear0) > Number.EPSILON) {
					// not collinear
					// length of vectors for normalizing
					const v_prev_len = Math.sqrt(v_prev_lensq);
					const v_next_len = Math.sqrt(v_next_x * v_next_x + v_next_y * v_next_y); // shift adjacent points by unit vectors to the left

					const ptPrevShift_x = inPrev.x - v_prev_y / v_prev_len;
					const ptPrevShift_y = inPrev.y + v_prev_x / v_prev_len;
					const ptNextShift_x = inNext.x - v_next_y / v_next_len;
					const ptNextShift_y = inNext.y + v_next_x / v_next_len; // scaling factor for v_prev to intersection point

					const sf = ((ptNextShift_x - ptPrevShift_x) * v_next_y - (ptNextShift_y - ptPrevShift_y) * v_next_x) / (v_prev_x * v_next_y - v_prev_y * v_next_x); // vector from inPt to intersection point

					v_trans_x = ptPrevShift_x + v_prev_x * sf - inPt.x;
					v_trans_y = ptPrevShift_y + v_prev_y * sf - inPt.y; // Don't normalize!, otherwise sharp corners become ugly
					//	but prevent crazy spikes

					const v_trans_lensq = v_trans_x * v_trans_x + v_trans_y * v_trans_y;

					if (v_trans_lensq <= 2) {
						return new Vector2(v_trans_x, v_trans_y);
					} else {
						shrink_by = Math.sqrt(v_trans_lensq / 2);
					}
				} else {
					// handle special case of collinear edges
					let direction_eq = false; // assumes: opposite

					if (v_prev_x > Number.EPSILON) {
						if (v_next_x > Number.EPSILON) {
							direction_eq = true;
						}
					} else {
						if (v_prev_x < -Number.EPSILON) {
							if (v_next_x < -Number.EPSILON) {
								direction_eq = true;
							}
						} else {
							if (Math.sign(v_prev_y) === Math.sign(v_next_y)) {
								direction_eq = true;
							}
						}
					}

					if (direction_eq) {
						// console.log("Warning: lines are a straight sequence");
						v_trans_x = -v_prev_y;
						v_trans_y = v_prev_x;
						shrink_by = Math.sqrt(v_prev_lensq);
					} else {
						// console.log("Warning: lines are a straight spike");
						v_trans_x = v_prev_x;
						v_trans_y = v_prev_y;
						shrink_by = Math.sqrt(v_prev_lensq / 2);
					}
				}

				return new Vector2(v_trans_x / shrink_by, v_trans_y / shrink_by);
			}

			const contourMovements = [];

			for (let i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i++, j++, k++) {
				if (j === il) j = 0;
				if (k === il) k = 0; //	(j)---(i)---(k)
				// console.log('i,j,k', i, j , k)

				contourMovements[i] = getBevelVec(contour[i], contour[j], contour[k]);
			}

			const holesMovements = [];
			let oneHoleMovements,
					verticesMovements = contourMovements.concat();

			for (let h = 0, hl = holes.length; h < hl; h++) {
				const ahole = holes[h];
				oneHoleMovements = [];

				for (let i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i++, j++, k++) {
					if (j === il) j = 0;
					if (k === il) k = 0; //	(j)---(i)---(k)

					oneHoleMovements[i] = getBevelVec(ahole[i], ahole[j], ahole[k]);
				}

				holesMovements.push(oneHoleMovements);
				verticesMovements = verticesMovements.concat(oneHoleMovements);
			} // Loop bevelSegments, 1 for the front, 1 for the back


			for (let b = 0; b < bevelSegments; b++) {
				//for ( b = bevelSegments; b > 0; b -- ) {
				const t = b / bevelSegments;
				const z = bevelThickness * Math.cos(t * Math.PI / 2);
				const bs = bevelSize * Math.sin(t * Math.PI / 2) + bevelOffset; // contract shape

				for (let i = 0, il = contour.length; i < il; i++) {
					const vert = scalePt2(contour[i], contourMovements[i], bs);
					v(vert.x, vert.y, -z);
				} // expand holes


				for (let h = 0, hl = holes.length; h < hl; h++) {
					const ahole = holes[h];
					oneHoleMovements = holesMovements[h];

					for (let i = 0, il = ahole.length; i < il; i++) {
						const vert = scalePt2(ahole[i], oneHoleMovements[i], bs);
						v(vert.x, vert.y, -z);
					}
				}
			}

			const bs = bevelSize + bevelOffset; // Back facing vertices

			for (let i = 0; i < vlen; i++) {
				const vert = bevelEnabled ? scalePt2(vertices[i], verticesMovements[i], bs) : vertices[i];

				if (!extrudeByPath) {
					v(vert.x, vert.y, 0);
				} else {
					// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );
					normal.copy(splineTube.normals[0]).multiplyScalar(vert.x);
					binormal.copy(splineTube.binormals[0]).multiplyScalar(vert.y);
					position2.copy(extrudePts[0]).add(normal).add(binormal);
					v(position2.x, position2.y, position2.z);
				}
			} // Add stepped vertices...
			// Including front facing vertices


			for (let s = 1; s <= steps; s++) {
				for (let i = 0; i < vlen; i++) {
					const vert = bevelEnabled ? scalePt2(vertices[i], verticesMovements[i], bs) : vertices[i];

					if (!extrudeByPath) {
						v(vert.x, vert.y, depth / steps * s);
					} else {
						// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );
						normal.copy(splineTube.normals[s]).multiplyScalar(vert.x);
						binormal.copy(splineTube.binormals[s]).multiplyScalar(vert.y);
						position2.copy(extrudePts[s]).add(normal).add(binormal);
						v(position2.x, position2.y, position2.z);
					}
				}
			} // Add bevel segments planes
			//for ( b = 1; b <= bevelSegments; b ++ ) {


			for (let b = bevelSegments - 1; b >= 0; b--) {
				const t = b / bevelSegments;
				const z = bevelThickness * Math.cos(t * Math.PI / 2);
				const bs = bevelSize * Math.sin(t * Math.PI / 2) + bevelOffset; // contract shape

				for (let i = 0, il = contour.length; i < il; i++) {
					const vert = scalePt2(contour[i], contourMovements[i], bs);
					v(vert.x, vert.y, depth + z);
				} // expand holes


				for (let h = 0, hl = holes.length; h < hl; h++) {
					const ahole = holes[h];
					oneHoleMovements = holesMovements[h];

					for (let i = 0, il = ahole.length; i < il; i++) {
						const vert = scalePt2(ahole[i], oneHoleMovements[i], bs);

						if (!extrudeByPath) {
							v(vert.x, vert.y, depth + z);
						} else {
							v(vert.x, vert.y + extrudePts[steps - 1].y, extrudePts[steps - 1].x + z);
						}
					}
				}
			}
			/* Faces */
			// Top and bottom faces


			buildLidFaces(); // Sides faces

			buildSideFaces(); /////	Internal functions

			function buildLidFaces() {
				const start = verticesArray.length / 3;

				if (bevelEnabled) {
					let layer = 0; // steps + 1

					let offset = vlen * layer; // Bottom faces

					for (let i = 0; i < flen; i++) {
						const face = faces[i];
						f3(face[2] + offset, face[1] + offset, face[0] + offset);
					}

					layer = steps + bevelSegments * 2;
					offset = vlen * layer; // Top faces

					for (let i = 0; i < flen; i++) {
						const face = faces[i];
						f3(face[0] + offset, face[1] + offset, face[2] + offset);
					}
				} else {
					// Bottom faces
					for (let i = 0; i < flen; i++) {
						const face = faces[i];
						f3(face[2], face[1], face[0]);
					} // Top faces


					for (let i = 0; i < flen; i++) {
						const face = faces[i];
						f3(face[0] + vlen * steps, face[1] + vlen * steps, face[2] + vlen * steps);
					}
				}

				scope.addGroup(start, verticesArray.length / 3 - start, 0);
			} // Create faces for the z-sides of the shape


			function buildSideFaces() {
				const start = verticesArray.length / 3;
				let layeroffset = 0;
				sidewalls(contour, layeroffset);
				layeroffset += contour.length;

				for (let h = 0, hl = holes.length; h < hl; h++) {
					const ahole = holes[h];
					sidewalls(ahole, layeroffset); //, true

					layeroffset += ahole.length;
				}

				scope.addGroup(start, verticesArray.length / 3 - start, 1);
			}

			function sidewalls(contour, layeroffset) {
				let i = contour.length;

				while (--i >= 0) {
					const j = i;
					let k = i - 1;
					if (k < 0) k = contour.length - 1; //console.log('b', i,j, i-1, k,vertices.length);

					for (let s = 0, sl = steps + bevelSegments * 2; s < sl; s++) {
						const slen1 = vlen * s;
						const slen2 = vlen * (s + 1);
						const a = layeroffset + j + slen1,
									b = layeroffset + k + slen1,
									c = layeroffset + k + slen2,
									d = layeroffset + j + slen2;
						f4(a, b, c, d);
					}
				}
			}

			function v(x, y, z) {
				placeholder.push(x);
				placeholder.push(y);
				placeholder.push(z);
			}

			function f3(a, b, c) {
				addVertex(a);
				addVertex(b);
				addVertex(c);
				const nextIndex = verticesArray.length / 3;
				const uvs = uvgen.generateTopUV(scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1);
				addUV(uvs[0]);
				addUV(uvs[1]);
				addUV(uvs[2]);
			}

			function f4(a, b, c, d) {
				addVertex(a);
				addVertex(b);
				addVertex(d);
				addVertex(b);
				addVertex(c);
				addVertex(d);
				const nextIndex = verticesArray.length / 3;
				const uvs = uvgen.generateSideWallUV(scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1);
				addUV(uvs[0]);
				addUV(uvs[1]);
				addUV(uvs[3]);
				addUV(uvs[1]);
				addUV(uvs[2]);
				addUV(uvs[3]);
			}

			function addVertex(index) {
				verticesArray.push(placeholder[index * 3 + 0]);
				verticesArray.push(placeholder[index * 3 + 1]);
				verticesArray.push(placeholder[index * 3 + 2]);
			}

			function addUV(vector2) {
				uvArray.push(vector2.x);
				uvArray.push(vector2.y);
			}
		}
	}

	toJSON() {
		const data = super.toJSON();
		const shapes = this.parameters.shapes;
		const options = this.parameters.options;
		return toJSON$1(shapes, options, data);
	}

	static fromJSON(data, shapes) {
		const geometryShapes = [];

		for (let j = 0, jl = data.shapes.length; j < jl; j++) {
			const shape = shapes[data.shapes[j]];
			geometryShapes.push(shape);
		}

		const extrudePath = data.options.extrudePath;

		if (extrudePath !== undefined) {
			data.options.extrudePath = new Curves[extrudePath.type]().fromJSON(extrudePath);
		}

		return new ExtrudeGeometry(geometryShapes, data.options);
	}

}

const WorldUVGenerator = {
	generateTopUV: function (geometry, vertices, indexA, indexB, indexC) {
		const a_x = vertices[indexA * 3];
		const a_y = vertices[indexA * 3 + 1];
		const b_x = vertices[indexB * 3];
		const b_y = vertices[indexB * 3 + 1];
		const c_x = vertices[indexC * 3];
		const c_y = vertices[indexC * 3 + 1];
		return [new Vector2(a_x, a_y), new Vector2(b_x, b_y), new Vector2(c_x, c_y)];
	},
	generateSideWallUV: function (geometry, vertices, indexA, indexB, indexC, indexD) {
		const a_x = vertices[indexA * 3];
		const a_y = vertices[indexA * 3 + 1];
		const a_z = vertices[indexA * 3 + 2];
		const b_x = vertices[indexB * 3];
		const b_y = vertices[indexB * 3 + 1];
		const b_z = vertices[indexB * 3 + 2];
		const c_x = vertices[indexC * 3];
		const c_y = vertices[indexC * 3 + 1];
		const c_z = vertices[indexC * 3 + 2];
		const d_x = vertices[indexD * 3];
		const d_y = vertices[indexD * 3 + 1];
		const d_z = vertices[indexD * 3 + 2];

		if (Math.abs(a_y - b_y) < Math.abs(a_x - b_x)) {
			return [new Vector2(a_x, 1 - a_z), new Vector2(b_x, 1 - b_z), new Vector2(c_x, 1 - c_z), new Vector2(d_x, 1 - d_z)];
		} else {
			return [new Vector2(a_y, 1 - a_z), new Vector2(b_y, 1 - b_z), new Vector2(c_y, 1 - c_z), new Vector2(d_y, 1 - d_z)];
		}
	}
};

function toJSON$1(shapes, options, data) {
	data.shapes = [];

	if (Array.isArray(shapes)) {
		for (let i = 0, l = shapes.length; i < l; i++) {
			const shape = shapes[i];
			data.shapes.push(shape.uuid);
		}
	} else {
		data.shapes.push(shapes.uuid);
	}

	if (options.extrudePath !== undefined) data.options.extrudePath = options.extrudePath.toJSON();
	return data;
}

class IcosahedronGeometry extends PolyhedronGeometry {
	constructor(radius = 1, detail = 0) {
		const t = (1 + Math.sqrt(5)) / 2;
		const vertices = [-1, t, 0, 1, t, 0, -1, -t, 0, 1, -t, 0, 0, -1, t, 0, 1, t, 0, -1, -t, 0, 1, -t, t, 0, -1, t, 0, 1, -t, 0, -1, -t, 0, 1];
		const indices = [0, 11, 5, 0, 5, 1, 0, 1, 7, 0, 7, 10, 0, 10, 11, 1, 5, 9, 5, 11, 4, 11, 10, 2, 10, 7, 6, 7, 1, 8, 3, 9, 4, 3, 4, 2, 3, 2, 6, 3, 6, 8, 3, 8, 9, 4, 9, 5, 2, 4, 11, 6, 2, 10, 8, 6, 7, 9, 8, 1];
		super(vertices, indices, radius, detail);
		this.type = 'IcosahedronGeometry';
		this.parameters = {
			radius: radius,
			detail: detail
		};
	}

	static fromJSON(data) {
		return new IcosahedronGeometry(data.radius, data.detail);
	}

}

class LatheGeometry extends BufferGeometry {
	constructor(points = [new Vector2(0, 0.5), new Vector2(0.5, 0), new Vector2(0, -0.5)], segments = 12, phiStart = 0, phiLength = Math.PI * 2) {
		super();
		this.type = 'LatheGeometry';
		this.parameters = {
			points: points,
			segments: segments,
			phiStart: phiStart,
			phiLength: phiLength
		};
		segments = Math.floor(segments); // clamp phiLength so it's in range of [ 0, 2PI ]

		phiLength = clamp(phiLength, 0, Math.PI * 2); // buffers

		const indices = [];
		const vertices = [];
		const uvs = [];
		const initNormals = [];
		const normals = []; // helper variables

		const inverseSegments = 1.0 / segments;
		const vertex = new Vector3();
		const uv = new Vector2();
		const normal = new Vector3();
		const curNormal = new Vector3();
		const prevNormal = new Vector3();
		let dx = 0;
		let dy = 0; // pre-compute normals for initial "meridian"

		for (let j = 0; j <= points.length - 1; j++) {
			switch (j) {
				case 0:
					// special handling for 1st vertex on path
					dx = points[j + 1].x - points[j].x;
					dy = points[j + 1].y - points[j].y;
					normal.x = dy * 1.0;
					normal.y = -dx;
					normal.z = dy * 0.0;
					prevNormal.copy(normal);
					normal.normalize();
					initNormals.push(normal.x, normal.y, normal.z);
					break;

				case points.length - 1:
					// special handling for last Vertex on path
					initNormals.push(prevNormal.x, prevNormal.y, prevNormal.z);
					break;

				default:
					// default handling for all vertices in between
					dx = points[j + 1].x - points[j].x;
					dy = points[j + 1].y - points[j].y;
					normal.x = dy * 1.0;
					normal.y = -dx;
					normal.z = dy * 0.0;
					curNormal.copy(normal);
					normal.x += prevNormal.x;
					normal.y += prevNormal.y;
					normal.z += prevNormal.z;
					normal.normalize();
					initNormals.push(normal.x, normal.y, normal.z);
					prevNormal.copy(curNormal);
			}
		} // generate vertices, uvs and normals


		for (let i = 0; i <= segments; i++) {
			const phi = phiStart + i * inverseSegments * phiLength;
			const sin = Math.sin(phi);
			const cos = Math.cos(phi);

			for (let j = 0; j <= points.length - 1; j++) {
				// vertex
				vertex.x = points[j].x * sin;
				vertex.y = points[j].y;
				vertex.z = points[j].x * cos;
				vertices.push(vertex.x, vertex.y, vertex.z); // uv

				uv.x = i / segments;
				uv.y = j / (points.length - 1);
				uvs.push(uv.x, uv.y); // normal

				const x = initNormals[3 * j + 0] * sin;
				const y = initNormals[3 * j + 1];
				const z = initNormals[3 * j + 0] * cos;
				normals.push(x, y, z);
			}
		} // indices


		for (let i = 0; i < segments; i++) {
			for (let j = 0; j < points.length - 1; j++) {
				const base = j + i * points.length;
				const a = base;
				const b = base + points.length;
				const c = base + points.length + 1;
				const d = base + 1; // faces

				indices.push(a, b, d);
				indices.push(c, d, b);
			}
		} // build geometry


		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
	}

	static fromJSON(data) {
		return new LatheGeometry(data.points, data.segments, data.phiStart, data.phiLength);
	}

}

class OctahedronGeometry extends PolyhedronGeometry {
	constructor(radius = 1, detail = 0) {
		const vertices = [1, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1];
		const indices = [0, 2, 4, 0, 4, 3, 0, 3, 5, 0, 5, 2, 1, 2, 5, 1, 5, 3, 1, 3, 4, 1, 4, 2];
		super(vertices, indices, radius, detail);
		this.type = 'OctahedronGeometry';
		this.parameters = {
			radius: radius,
			detail: detail
		};
	}

	static fromJSON(data) {
		return new OctahedronGeometry(data.radius, data.detail);
	}

}

class RingGeometry extends BufferGeometry {
	constructor(innerRadius = 0.5, outerRadius = 1, thetaSegments = 8, phiSegments = 1, thetaStart = 0, thetaLength = Math.PI * 2) {
		super();
		this.type = 'RingGeometry';
		this.parameters = {
			innerRadius: innerRadius,
			outerRadius: outerRadius,
			thetaSegments: thetaSegments,
			phiSegments: phiSegments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};
		thetaSegments = Math.max(3, thetaSegments);
		phiSegments = Math.max(1, phiSegments); // buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = []; // some helper variables

		let radius = innerRadius;
		const radiusStep = (outerRadius - innerRadius) / phiSegments;
		const vertex = new Vector3();
		const uv = new Vector2(); // generate vertices, normals and uvs

		for (let j = 0; j <= phiSegments; j++) {
			for (let i = 0; i <= thetaSegments; i++) {
				// values are generate from the inside of the ring to the outside
				const segment = thetaStart + i / thetaSegments * thetaLength; // vertex

				vertex.x = radius * Math.cos(segment);
				vertex.y = radius * Math.sin(segment);
				vertices.push(vertex.x, vertex.y, vertex.z); // normal

				normals.push(0, 0, 1); // uv

				uv.x = (vertex.x / outerRadius + 1) / 2;
				uv.y = (vertex.y / outerRadius + 1) / 2;
				uvs.push(uv.x, uv.y);
			} // increase the radius for next row of vertices


			radius += radiusStep;
		} // indices


		for (let j = 0; j < phiSegments; j++) {
			const thetaSegmentLevel = j * (thetaSegments + 1);

			for (let i = 0; i < thetaSegments; i++) {
				const segment = i + thetaSegmentLevel;
				const a = segment;
				const b = segment + thetaSegments + 1;
				const c = segment + thetaSegments + 2;
				const d = segment + 1; // faces

				indices.push(a, b, d);
				indices.push(b, c, d);
			}
		} // build geometry


		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
	}

	static fromJSON(data) {
		return new RingGeometry(data.innerRadius, data.outerRadius, data.thetaSegments, data.phiSegments, data.thetaStart, data.thetaLength);
	}

}

class ShapeGeometry extends BufferGeometry {
	constructor(shapes = new Shape([new Vector2(0, 0.5), new Vector2(-0.5, -0.5), new Vector2(0.5, -0.5)]), curveSegments = 12) {
		super();
		this.type = 'ShapeGeometry';
		this.parameters = {
			shapes: shapes,
			curveSegments: curveSegments
		}; // buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = []; // helper variables

		let groupStart = 0;
		let groupCount = 0; // allow single and array values for "shapes" parameter

		if (Array.isArray(shapes) === false) {
			addShape(shapes);
		} else {
			for (let i = 0; i < shapes.length; i++) {
				addShape(shapes[i]);
				this.addGroup(groupStart, groupCount, i); // enables MultiMaterial support

				groupStart += groupCount;
				groupCount = 0;
			}
		} // build geometry


		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // helper functions

		function addShape(shape) {
			const indexOffset = vertices.length / 3;
			const points = shape.extractPoints(curveSegments);
			let shapeVertices = points.shape;
			const shapeHoles = points.holes; // check direction of vertices

			if (ShapeUtils.isClockWise(shapeVertices) === false) {
				shapeVertices = shapeVertices.reverse();
			}

			for (let i = 0, l = shapeHoles.length; i < l; i++) {
				const shapeHole = shapeHoles[i];

				if (ShapeUtils.isClockWise(shapeHole) === true) {
					shapeHoles[i] = shapeHole.reverse();
				}
			}

			const faces = ShapeUtils.triangulateShape(shapeVertices, shapeHoles); // join vertices of inner and outer paths to a single array

			for (let i = 0, l = shapeHoles.length; i < l; i++) {
				const shapeHole = shapeHoles[i];
				shapeVertices = shapeVertices.concat(shapeHole);
			} // vertices, normals, uvs


			for (let i = 0, l = shapeVertices.length; i < l; i++) {
				const vertex = shapeVertices[i];
				vertices.push(vertex.x, vertex.y, 0);
				normals.push(0, 0, 1);
				uvs.push(vertex.x, vertex.y); // world uvs
			} // incides


			for (let i = 0, l = faces.length; i < l; i++) {
				const face = faces[i];
				const a = face[0] + indexOffset;
				const b = face[1] + indexOffset;
				const c = face[2] + indexOffset;
				indices.push(a, b, c);
				groupCount += 3;
			}
		}
	}

	toJSON() {
		const data = super.toJSON();
		const shapes = this.parameters.shapes;
		return toJSON(shapes, data);
	}

	static fromJSON(data, shapes) {
		const geometryShapes = [];

		for (let j = 0, jl = data.shapes.length; j < jl; j++) {
			const shape = shapes[data.shapes[j]];
			geometryShapes.push(shape);
		}

		return new ShapeGeometry(geometryShapes, data.curveSegments);
	}

}

function toJSON(shapes, data) {
	data.shapes = [];

	if (Array.isArray(shapes)) {
		for (let i = 0, l = shapes.length; i < l; i++) {
			const shape = shapes[i];
			data.shapes.push(shape.uuid);
		}
	} else {
		data.shapes.push(shapes.uuid);
	}

	return data;
}

class SphereGeometry extends BufferGeometry {
	constructor(radius = 1, widthSegments = 32, heightSegments = 16, phiStart = 0, phiLength = Math.PI * 2, thetaStart = 0, thetaLength = Math.PI) {
		super();
		this.type = 'SphereGeometry';
		this.parameters = {
			radius: radius,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			phiStart: phiStart,
			phiLength: phiLength,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};
		widthSegments = Math.max(3, Math.floor(widthSegments));
		heightSegments = Math.max(2, Math.floor(heightSegments));
		const thetaEnd = Math.min(thetaStart + thetaLength, Math.PI);
		let index = 0;
		const grid = [];
		const vertex = new Vector3();
		const normal = new Vector3(); // buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = []; // generate vertices, normals and uvs

		for (let iy = 0; iy <= heightSegments; iy++) {
			const verticesRow = [];
			const v = iy / heightSegments; // special case for the poles

			let uOffset = 0;

			if (iy == 0 && thetaStart == 0) {
				uOffset = 0.5 / widthSegments;
			} else if (iy == heightSegments && thetaEnd == Math.PI) {
				uOffset = -0.5 / widthSegments;
			}

			for (let ix = 0; ix <= widthSegments; ix++) {
				const u = ix / widthSegments; // vertex

				vertex.x = -radius * Math.cos(phiStart + u * phiLength) * Math.sin(thetaStart + v * thetaLength);
				vertex.y = radius * Math.cos(thetaStart + v * thetaLength);
				vertex.z = radius * Math.sin(phiStart + u * phiLength) * Math.sin(thetaStart + v * thetaLength);
				vertices.push(vertex.x, vertex.y, vertex.z); // normal

				normal.copy(vertex).normalize();
				normals.push(normal.x, normal.y, normal.z); // uv

				uvs.push(u + uOffset, 1 - v);
				verticesRow.push(index++);
			}

			grid.push(verticesRow);
		} // indices


		for (let iy = 0; iy < heightSegments; iy++) {
			for (let ix = 0; ix < widthSegments; ix++) {
				const a = grid[iy][ix + 1];
				const b = grid[iy][ix];
				const c = grid[iy + 1][ix];
				const d = grid[iy + 1][ix + 1];
				if (iy !== 0 || thetaStart > 0) indices.push(a, b, d);
				if (iy !== heightSegments - 1 || thetaEnd < Math.PI) indices.push(b, c, d);
			}
		} // build geometry


		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
	}

	static fromJSON(data) {
		return new SphereGeometry(data.radius, data.widthSegments, data.heightSegments, data.phiStart, data.phiLength, data.thetaStart, data.thetaLength);
	}

}

class TetrahedronGeometry extends PolyhedronGeometry {
	constructor(radius = 1, detail = 0) {
		const vertices = [1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1];
		const indices = [2, 1, 0, 0, 3, 2, 1, 3, 0, 2, 3, 1];
		super(vertices, indices, radius, detail);
		this.type = 'TetrahedronGeometry';
		this.parameters = {
			radius: radius,
			detail: detail
		};
	}

	static fromJSON(data) {
		return new TetrahedronGeometry(data.radius, data.detail);
	}

}

class TorusGeometry extends BufferGeometry {
	constructor(radius = 1, tube = 0.4, radialSegments = 8, tubularSegments = 6, arc = Math.PI * 2) {
		super();
		this.type = 'TorusGeometry';
		this.parameters = {
			radius: radius,
			tube: tube,
			radialSegments: radialSegments,
			tubularSegments: tubularSegments,
			arc: arc
		};
		radialSegments = Math.floor(radialSegments);
		tubularSegments = Math.floor(tubularSegments); // buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = []; // helper variables

		const center = new Vector3();
		const vertex = new Vector3();
		const normal = new Vector3(); // generate vertices, normals and uvs

		for (let j = 0; j <= radialSegments; j++) {
			for (let i = 0; i <= tubularSegments; i++) {
				const u = i / tubularSegments * arc;
				const v = j / radialSegments * Math.PI * 2; // vertex

				vertex.x = (radius + tube * Math.cos(v)) * Math.cos(u);
				vertex.y = (radius + tube * Math.cos(v)) * Math.sin(u);
				vertex.z = tube * Math.sin(v);
				vertices.push(vertex.x, vertex.y, vertex.z); // normal

				center.x = radius * Math.cos(u);
				center.y = radius * Math.sin(u);
				normal.subVectors(vertex, center).normalize();
				normals.push(normal.x, normal.y, normal.z); // uv

				uvs.push(i / tubularSegments);
				uvs.push(j / radialSegments);
			}
		} // generate indices


		for (let j = 1; j <= radialSegments; j++) {
			for (let i = 1; i <= tubularSegments; i++) {
				// indices
				const a = (tubularSegments + 1) * j + i - 1;
				const b = (tubularSegments + 1) * (j - 1) + i - 1;
				const c = (tubularSegments + 1) * (j - 1) + i;
				const d = (tubularSegments + 1) * j + i; // faces

				indices.push(a, b, d);
				indices.push(b, c, d);
			}
		} // build geometry


		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2));
	}

	static fromJSON(data) {
		return new TorusGeometry(data.radius, data.tube, data.radialSegments, data.tubularSegments, data.arc);
	}

}

class TorusKnotGeometry extends BufferGeometry {
	constructor(radius = 1, tube = 0.4, tubularSegments = 64, radialSegments = 8, p = 2, q = 3) {
		super();
		this.type = 'TorusKnotGeometry';
		this.parameters = {
			radius: radius,
			tube: tube,
			tubularSegments: tubularSegments,
			radialSegments: radialSegments,
			p: p,
			q: q
		};
		tubularSegments = Math.floor(tubularSegments);
		radialSegments = Math.floor(radialSegments); // buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = []; // helper variables

		const vertex = new Vector3();
		const normal = new Vector3();
		const P1 = new Vector3();
		const P2 = new Vector3();
		const B = new Vector3();
		const T = new Vector3();
		const N = new Vector3(); // generate vertices, normals and uvs

		for (let i = 0; i <= tubularSegments; ++i) {
			// the radian "u" is used to calculate the position on the torus curve of the current tubular segement
			const u = i / tubularSegments * p * Math.PI * 2; // now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
			// these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions

			calculatePositionOnCurve(u, p, q, radius, P1);
			calculatePositionOnCurve(u + 0.01, p, q, radius, P2); // calculate orthonormal basis

			T.subVectors(P2, P1);
			N.addVectors(P2, P1);
			B.crossVectors(T, N);
			N.crossVectors(B, T); // normalize B, N. T can be ignored, we don't use it

			B.normalize();
			N.normalize();

			for (let j = 0; j <= radialSegments; ++j) {
				// now calculate the vertices. they are nothing more than an extrusion of the torus curve.
				// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.
				const v = j / radialSegments * Math.PI * 2;
				const cx = -tube * Math.cos(v);
				const cy = tube * Math.sin(v); // now calculate the final vertex position.
				// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve

				vertex.x = P1.x + (cx * N.x + cy * B.x);
				vertex.y = P1.y + (cx * N.y + cy * B.y);
				vertex.z = P1.z + (cx * N.z + cy * B.z);
				vertices.push(vertex.x, vertex.y, vertex.z); // normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)

				normal.subVectors(vertex, P1).normalize();
				normals.push(normal.x, normal.y, normal.z); // uv

				uvs.push(i / tubularSegments);
				uvs.push(j / radialSegments);
			}
		} // generate indices


		for (let j = 1; j <= tubularSegments; j++) {
			for (let i = 1; i <= radialSegments; i++) {
				// indices
				const a = (radialSegments + 1) * (j - 1) + (i - 1);
				const b = (radialSegments + 1) * j + (i - 1);
				const c = (radialSegments + 1) * j + i;
				const d = (radialSegments + 1) * (j - 1) + i; // faces

				indices.push(a, b, d);
				indices.push(b, c, d);
			}
		} // build geometry


		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // this function calculates the current position on the torus curve

		function calculatePositionOnCurve(u, p, q, radius, position) {
			const cu = Math.cos(u);
			const su = Math.sin(u);
			const quOverP = q / p * u;
			const cs = Math.cos(quOverP);
			position.x = radius * (2 + cs) * 0.5 * cu;
			position.y = radius * (2 + cs) * su * 0.5;
			position.z = radius * Math.sin(quOverP) * 0.5;
		}
	}

	static fromJSON(data) {
		return new TorusKnotGeometry(data.radius, data.tube, data.tubularSegments, data.radialSegments, data.p, data.q);
	}

}

class TubeGeometry extends BufferGeometry {
	constructor(path = new QuadraticBezierCurve3(new Vector3(-1, -1, 0), new Vector3(-1, 1, 0), new Vector3(1, 1, 0)), tubularSegments = 64, radius = 1, radialSegments = 8, closed = false) {
		super();
		this.type = 'TubeGeometry';
		this.parameters = {
			path: path,
			tubularSegments: tubularSegments,
			radius: radius,
			radialSegments: radialSegments,
			closed: closed
		};
		const frames = path.computeFrenetFrames(tubularSegments, closed); // expose internals

		this.tangents = frames.tangents;
		this.normals = frames.normals;
		this.binormals = frames.binormals; // helper variables

		const vertex = new Vector3();
		const normal = new Vector3();
		const uv = new Vector2();
		let P = new Vector3(); // buffer

		const vertices = [];
		const normals = [];
		const uvs = [];
		const indices = []; // create buffer data

		generateBufferData(); // build geometry

		this.setIndex(indices);
		this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		this.setAttribute('normal', new Float32BufferAttribute(normals, 3));
		this.setAttribute('uv', new Float32BufferAttribute(uvs, 2)); // functions

		function generateBufferData() {
			for (let i = 0; i < tubularSegments; i++) {
				generateSegment(i);
			} // if the geometry is not closed, generate the last row of vertices and normals
			// at the regular position on the given path
			//
			// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)


			generateSegment(closed === false ? tubularSegments : 0); // uvs are generated in a separate function.
			// this makes it easy compute correct values for closed geometries

			generateUVs(); // finally create faces

			generateIndices();
		}

		function generateSegment(i) {
			// we use getPointAt to sample evenly distributed points from the given path
			P = path.getPointAt(i / tubularSegments, P); // retrieve corresponding normal and binormal

			const N = frames.normals[i];
			const B = frames.binormals[i]; // generate normals and vertices for the current segment

			for (let j = 0; j <= radialSegments; j++) {
				const v = j / radialSegments * Math.PI * 2;
				const sin = Math.sin(v);
				const cos = -Math.cos(v); // normal

				normal.x = cos * N.x + sin * B.x;
				normal.y = cos * N.y + sin * B.y;
				normal.z = cos * N.z + sin * B.z;
				normal.normalize();
				normals.push(normal.x, normal.y, normal.z); // vertex

				vertex.x = P.x + radius * normal.x;
				vertex.y = P.y + radius * normal.y;
				vertex.z = P.z + radius * normal.z;
				vertices.push(vertex.x, vertex.y, vertex.z);
			}
		}

		function generateIndices() {
			for (let j = 1; j <= tubularSegments; j++) {
				for (let i = 1; i <= radialSegments; i++) {
					const a = (radialSegments + 1) * (j - 1) + (i - 1);
					const b = (radialSegments + 1) * j + (i - 1);
					const c = (radialSegments + 1) * j + i;
					const d = (radialSegments + 1) * (j - 1) + i; // faces

					indices.push(a, b, d);
					indices.push(b, c, d);
				}
			}
		}

		function generateUVs() {
			for (let i = 0; i <= tubularSegments; i++) {
				for (let j = 0; j <= radialSegments; j++) {
					uv.x = i / tubularSegments;
					uv.y = j / radialSegments;
					uvs.push(uv.x, uv.y);
				}
			}
		}
	}

	toJSON() {
		const data = super.toJSON();
		data.path = this.parameters.path.toJSON();
		return data;
	}

	static fromJSON(data) {
		// This only works for built-in curves (e.g. CatmullRomCurve3).
		// User defined curves or instances of CurvePath will not be deserialized.
		return new TubeGeometry(new Curves[data.path.type]().fromJSON(data.path), data.tubularSegments, data.radius, data.radialSegments, data.closed);
	}

}

class WireframeGeometry extends BufferGeometry {
	constructor(geometry = null) {
		super();
		this.type = 'WireframeGeometry';
		this.parameters = {
			geometry: geometry
		};

		if (geometry !== null) {
			// buffer
			const vertices = [];
			const edges = new Set(); // helper variables

			const start = new Vector3();
			const end = new Vector3();

			if (geometry.index !== null) {
				// indexed BufferGeometry
				const position = geometry.attributes.position;
				const indices = geometry.index;
				let groups = geometry.groups;

				if (groups.length === 0) {
					groups = [{
						start: 0,
						count: indices.count,
						materialIndex: 0
					}];
				} // create a data structure that contains all eges without duplicates


				for (let o = 0, ol = groups.length; o < ol; ++o) {
					const group = groups[o];
					const groupStart = group.start;
					const groupCount = group.count;

					for (let i = groupStart, l = groupStart + groupCount; i < l; i += 3) {
						for (let j = 0; j < 3; j++) {
							const index1 = indices.getX(i + j);
							const index2 = indices.getX(i + (j + 1) % 3);
							start.fromBufferAttribute(position, index1);
							end.fromBufferAttribute(position, index2);

							if (isUniqueEdge(start, end, edges) === true) {
								vertices.push(start.x, start.y, start.z);
								vertices.push(end.x, end.y, end.z);
							}
						}
					}
				}
			} else {
				// non-indexed BufferGeometry
				const position = geometry.attributes.position;

				for (let i = 0, l = position.count / 3; i < l; i++) {
					for (let j = 0; j < 3; j++) {
						// three edges per triangle, an edge is represented as (index1, index2)
						// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)
						const index1 = 3 * i + j;
						const index2 = 3 * i + (j + 1) % 3;
						start.fromBufferAttribute(position, index1);
						end.fromBufferAttribute(position, index2);

						if (isUniqueEdge(start, end, edges) === true) {
							vertices.push(start.x, start.y, start.z);
							vertices.push(end.x, end.y, end.z);
						}
					}
				}
			} // build geometry


			this.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		}
	}

}

function isUniqueEdge(start, end, edges) {
	const hash1 = `${start.x},${start.y},${start.z}-${end.x},${end.y},${end.z}`;
	const hash2 = `${end.x},${end.y},${end.z}-${start.x},${start.y},${start.z}`; // coincident edge

	if (edges.has(hash1) === true || edges.has(hash2) === true) {
		return false;
	} else {
		edges.add(hash1, hash2);
		return true;
	}
}

var Geometries = /*#__PURE__*/Object.freeze({
	__proto__: null,
	BoxGeometry: BoxGeometry,
	BoxBufferGeometry: BoxGeometry,
	CircleGeometry: CircleGeometry,
	CircleBufferGeometry: CircleGeometry,
	ConeGeometry: ConeGeometry,
	ConeBufferGeometry: ConeGeometry,
	CylinderGeometry: CylinderGeometry,
	CylinderBufferGeometry: CylinderGeometry,
	DodecahedronGeometry: DodecahedronGeometry,
	DodecahedronBufferGeometry: DodecahedronGeometry,
	EdgesGeometry: EdgesGeometry,
	ExtrudeGeometry: ExtrudeGeometry,
	ExtrudeBufferGeometry: ExtrudeGeometry,
	IcosahedronGeometry: IcosahedronGeometry,
	IcosahedronBufferGeometry: IcosahedronGeometry,
	LatheGeometry: LatheGeometry,
	LatheBufferGeometry: LatheGeometry,
	OctahedronGeometry: OctahedronGeometry,
	OctahedronBufferGeometry: OctahedronGeometry,
	PlaneGeometry: PlaneGeometry,
	PlaneBufferGeometry: PlaneGeometry,
	PolyhedronGeometry: PolyhedronGeometry,
	PolyhedronBufferGeometry: PolyhedronGeometry,
	RingGeometry: RingGeometry,
	RingBufferGeometry: RingGeometry,
	ShapeGeometry: ShapeGeometry,
	ShapeBufferGeometry: ShapeGeometry,
	SphereGeometry: SphereGeometry,
	SphereBufferGeometry: SphereGeometry,
	TetrahedronGeometry: TetrahedronGeometry,
	TetrahedronBufferGeometry: TetrahedronGeometry,
	TorusGeometry: TorusGeometry,
	TorusBufferGeometry: TorusGeometry,
	TorusKnotGeometry: TorusKnotGeometry,
	TorusKnotBufferGeometry: TorusKnotGeometry,
	TubeGeometry: TubeGeometry,
	TubeBufferGeometry: TubeGeometry,
	WireframeGeometry: WireframeGeometry
});

/**
 * parameters = {
 *	color: <THREE.Color>
 * }
 */

class ShadowMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'ShadowMaterial';
		this.color = new Color(0x000000);
		this.transparent = true;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.color.copy(source.color);
		return this;
	}

}

ShadowMaterial.prototype.isShadowMaterial = true;

/**
 * parameters = {
 *	color: <hex>,
 *	roughness: <float>,
 *	metalness: <float>,
 *	opacity: <float>,
 *
 *	map: new THREE.Texture( <Image> ),
 *
 *	lightMap: new THREE.Texture( <Image> ),
 *	lightMapIntensity: <float>
 *
 *	aoMap: new THREE.Texture( <Image> ),
 *	aoMapIntensity: <float>
 *
 *	emissive: <hex>,
 *	emissiveIntensity: <float>
 *	emissiveMap: new THREE.Texture( <Image> ),
 *
 *	bumpMap: new THREE.Texture( <Image> ),
 *	bumpScale: <float>,
 *
 *	normalMap: new THREE.Texture( <Image> ),
 *	normalMapType: THREE.TangentSpaceNormalMap,
 *	normalScale: <Vector2>,
 *
 *	displacementMap: new THREE.Texture( <Image> ),
 *	displacementScale: <float>,
 *	displacementBias: <float>,
 *
 *	roughnessMap: new THREE.Texture( <Image> ),
 *
 *	metalnessMap: new THREE.Texture( <Image> ),
 *
 *	alphaMap: new THREE.Texture( <Image> ),
 *
 *	envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *	envMapIntensity: <float>
 *
 *	refractionRatio: <float>,
 *
 *	wireframe: <boolean>,
 *	wireframeLinewidth: <float>,
 *
 *	flatShading: <bool>
 * }
 */

class MeshStandardMaterial extends Material {
	constructor(parameters) {
		super();
		this.defines = {
			'STANDARD': ''
		};
		this.type = 'MeshStandardMaterial';
		this.color = new Color(0xffffff); // diffuse

		this.roughness = 1.0;
		this.metalness = 0.0;
		this.map = null;
		this.lightMap = null;
		this.lightMapIntensity = 1.0;
		this.aoMap = null;
		this.aoMapIntensity = 1.0;
		this.emissive = new Color(0x000000);
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;
		this.bumpMap = null;
		this.bumpScale = 1;
		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2(1, 1);
		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;
		this.roughnessMap = null;
		this.metalnessMap = null;
		this.alphaMap = null;
		this.envMap = null;
		this.envMapIntensity = 1.0;
		this.refractionRatio = 0.98;
		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';
		this.flatShading = false;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.defines = {
			'STANDARD': ''
		};
		this.color.copy(source.color);
		this.roughness = source.roughness;
		this.metalness = source.metalness;
		this.map = source.map;
		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;
		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;
		this.emissive.copy(source.emissive);
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;
		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;
		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy(source.normalScale);
		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;
		this.roughnessMap = source.roughnessMap;
		this.metalnessMap = source.metalnessMap;
		this.alphaMap = source.alphaMap;
		this.envMap = source.envMap;
		this.envMapIntensity = source.envMapIntensity;
		this.refractionRatio = source.refractionRatio;
		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;
		this.flatShading = source.flatShading;
		return this;
	}

}

MeshStandardMaterial.prototype.isMeshStandardMaterial = true;

/**
 * parameters = {
 *	clearcoat: <float>,
 *	clearcoatMap: new THREE.Texture( <Image> ),
 *	clearcoatRoughness: <float>,
 *	clearcoatRoughnessMap: new THREE.Texture( <Image> ),
 *	clearcoatNormalScale: <Vector2>,
 *	clearcoatNormalMap: new THREE.Texture( <Image> ),
 *
 *	ior: <float>,
 *	reflectivity: <float>,
 *
 *	sheen: <float>,
 *	sheenColor: <Color>,
 *	sheenColorMap: new THREE.Texture( <Image> ),
 *	sheenRoughness: <float>,
 *	sheenRoughnessMap: new THREE.Texture( <Image> ),
 *
 *	transmission: <float>,
 *	transmissionMap: new THREE.Texture( <Image> ),
 *
 *	thickness: <float>,
 *	thicknessMap: new THREE.Texture( <Image> ),
 *	attenuationDistance: <float>,
 *	attenuationColor: <Color>,
 *
 *	specularIntensity: <float>,
 *	specularIntensityMap: new THREE.Texture( <Image> ),
 *	specularColor: <Color>,
 *	specularColorMap: new THREE.Texture( <Image> )
 * }
 */

class MeshPhysicalMaterial extends MeshStandardMaterial {
	constructor(parameters) {
		super();
		this.defines = {
			'STANDARD': '',
			'PHYSICAL': ''
		};
		this.type = 'MeshPhysicalMaterial';
		this.clearcoatMap = null;
		this.clearcoatRoughness = 0.0;
		this.clearcoatRoughnessMap = null;
		this.clearcoatNormalScale = new Vector2(1, 1);
		this.clearcoatNormalMap = null;
		this.ior = 1.5;
		Object.defineProperty(this, 'reflectivity', {
			get: function () {
				return clamp(2.5 * (this.ior - 1) / (this.ior + 1), 0, 1);
			},
			set: function (reflectivity) {
				this.ior = (1 + 0.4 * reflectivity) / (1 - 0.4 * reflectivity);
			}
		});
		this.sheenColor = new Color(0x000000);
		this.sheenColorMap = null;
		this.sheenRoughness = 1.0;
		this.sheenRoughnessMap = null;
		this.transmissionMap = null;
		this.thickness = 0;
		this.thicknessMap = null;
		this.attenuationDistance = 0.0;
		this.attenuationColor = new Color(1, 1, 1);
		this.specularIntensity = 1.0;
		this.specularIntensityMap = null;
		this.specularColor = new Color(1, 1, 1);
		this.specularColorMap = null;
		this._sheen = 0.0;
		this._clearcoat = 0;
		this._transmission = 0;
		this.setValues(parameters);
	}

	get sheen() {
		return this._sheen;
	}

	set sheen(value) {
		if (this._sheen > 0 !== value > 0) {
			this.version++;
		}

		this._sheen = value;
	}

	get clearcoat() {
		return this._clearcoat;
	}

	set clearcoat(value) {
		if (this._clearcoat > 0 !== value > 0) {
			this.version++;
		}

		this._clearcoat = value;
	}

	get transmission() {
		return this._transmission;
	}

	set transmission(value) {
		if (this._transmission > 0 !== value > 0) {
			this.version++;
		}

		this._transmission = value;
	}

	copy(source) {
		super.copy(source);
		this.defines = {
			'STANDARD': '',
			'PHYSICAL': ''
		};
		this.clearcoat = source.clearcoat;
		this.clearcoatMap = source.clearcoatMap;
		this.clearcoatRoughness = source.clearcoatRoughness;
		this.clearcoatRoughnessMap = source.clearcoatRoughnessMap;
		this.clearcoatNormalMap = source.clearcoatNormalMap;
		this.clearcoatNormalScale.copy(source.clearcoatNormalScale);
		this.ior = source.ior;
		this.sheen = source.sheen;
		this.sheenColor.copy(source.sheenColor);
		this.sheenColorMap = source.sheenColorMap;
		this.sheenRoughness = source.sheenRoughness;
		this.sheenRoughnessMap = source.sheenRoughnessMap;
		this.transmission = source.transmission;
		this.transmissionMap = source.transmissionMap;
		this.thickness = source.thickness;
		this.thicknessMap = source.thicknessMap;
		this.attenuationDistance = source.attenuationDistance;
		this.attenuationColor.copy(source.attenuationColor);
		this.specularIntensity = source.specularIntensity;
		this.specularIntensityMap = source.specularIntensityMap;
		this.specularColor.copy(source.specularColor);
		this.specularColorMap = source.specularColorMap;
		return this;
	}

}

MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;

/**
 * parameters = {
 *	color: <hex>,
 *	specular: <hex>,
 *	shininess: <float>,
 *	opacity: <float>,
 *
 *	map: new THREE.Texture( <Image> ),
 *
 *	lightMap: new THREE.Texture( <Image> ),
 *	lightMapIntensity: <float>
 *
 *	aoMap: new THREE.Texture( <Image> ),
 *	aoMapIntensity: <float>
 *
 *	emissive: <hex>,
 *	emissiveIntensity: <float>
 *	emissiveMap: new THREE.Texture( <Image> ),
 *
 *	bumpMap: new THREE.Texture( <Image> ),
 *	bumpScale: <float>,
 *
 *	normalMap: new THREE.Texture( <Image> ),
 *	normalMapType: THREE.TangentSpaceNormalMap,
 *	normalScale: <Vector2>,
 *
 *	displacementMap: new THREE.Texture( <Image> ),
 *	displacementScale: <float>,
 *	displacementBias: <float>,
 *
 *	specularMap: new THREE.Texture( <Image> ),
 *
 *	alphaMap: new THREE.Texture( <Image> ),
 *
 *	envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *	combine: THREE.MultiplyOperation,
 *	reflectivity: <float>,
 *	refractionRatio: <float>,
 *
 *	wireframe: <boolean>,
 *	wireframeLinewidth: <float>,
 *
 *	flatShading: <bool>
 * }
 */

class MeshPhongMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'MeshPhongMaterial';
		this.color = new Color(0xffffff); // diffuse

		this.specular = new Color(0x111111);
		this.shininess = 30;
		this.map = null;
		this.lightMap = null;
		this.lightMapIntensity = 1.0;
		this.aoMap = null;
		this.aoMapIntensity = 1.0;
		this.emissive = new Color(0x000000);
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;
		this.bumpMap = null;
		this.bumpScale = 1;
		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2(1, 1);
		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;
		this.specularMap = null;
		this.alphaMap = null;
		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;
		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';
		this.flatShading = false;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.color.copy(source.color);
		this.specular.copy(source.specular);
		this.shininess = source.shininess;
		this.map = source.map;
		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;
		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;
		this.emissive.copy(source.emissive);
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;
		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;
		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy(source.normalScale);
		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;
		this.specularMap = source.specularMap;
		this.alphaMap = source.alphaMap;
		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;
		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;
		this.flatShading = source.flatShading;
		return this;
	}

}

MeshPhongMaterial.prototype.isMeshPhongMaterial = true;

/**
 * parameters = {
 *	color: <hex>,
 *
 *	map: new THREE.Texture( <Image> ),
 *	gradientMap: new THREE.Texture( <Image> ),
 *
 *	lightMap: new THREE.Texture( <Image> ),
 *	lightMapIntensity: <float>
 *
 *	aoMap: new THREE.Texture( <Image> ),
 *	aoMapIntensity: <float>
 *
 *	emissive: <hex>,
 *	emissiveIntensity: <float>
 *	emissiveMap: new THREE.Texture( <Image> ),
 *
 *	bumpMap: new THREE.Texture( <Image> ),
 *	bumpScale: <float>,
 *
 *	normalMap: new THREE.Texture( <Image> ),
 *	normalMapType: THREE.TangentSpaceNormalMap,
 *	normalScale: <Vector2>,
 *
 *	displacementMap: new THREE.Texture( <Image> ),
 *	displacementScale: <float>,
 *	displacementBias: <float>,
 *
 *	alphaMap: new THREE.Texture( <Image> ),
 *
 *	wireframe: <boolean>,
 *	wireframeLinewidth: <float>,
 *
 * }
 */

class MeshToonMaterial extends Material {
	constructor(parameters) {
		super();
		this.defines = {
			'TOON': ''
		};
		this.type = 'MeshToonMaterial';
		this.color = new Color(0xffffff);
		this.map = null;
		this.gradientMap = null;
		this.lightMap = null;
		this.lightMapIntensity = 1.0;
		this.aoMap = null;
		this.aoMapIntensity = 1.0;
		this.emissive = new Color(0x000000);
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;
		this.bumpMap = null;
		this.bumpScale = 1;
		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2(1, 1);
		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;
		this.alphaMap = null;
		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.color.copy(source.color);
		this.map = source.map;
		this.gradientMap = source.gradientMap;
		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;
		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;
		this.emissive.copy(source.emissive);
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;
		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;
		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy(source.normalScale);
		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;
		this.alphaMap = source.alphaMap;
		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;
		return this;
	}

}

MeshToonMaterial.prototype.isMeshToonMaterial = true;

/**
 * parameters = {
 *	opacity: <float>,
 *
 *	bumpMap: new THREE.Texture( <Image> ),
 *	bumpScale: <float>,
 *
 *	normalMap: new THREE.Texture( <Image> ),
 *	normalMapType: THREE.TangentSpaceNormalMap,
 *	normalScale: <Vector2>,
 *
 *	displacementMap: new THREE.Texture( <Image> ),
 *	displacementScale: <float>,
 *	displacementBias: <float>,
 *
 *	wireframe: <boolean>,
 *	wireframeLinewidth: <float>
 *
 *	flatShading: <bool>
 * }
 */

class MeshNormalMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'MeshNormalMaterial';
		this.bumpMap = null;
		this.bumpScale = 1;
		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2(1, 1);
		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;
		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.fog = false;
		this.flatShading = false;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;
		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy(source.normalScale);
		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;
		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.flatShading = source.flatShading;
		return this;
	}

}

MeshNormalMaterial.prototype.isMeshNormalMaterial = true;

/**
 * parameters = {
 *	color: <hex>,
 *	opacity: <float>,
 *
 *	map: new THREE.Texture( <Image> ),
 *
 *	lightMap: new THREE.Texture( <Image> ),
 *	lightMapIntensity: <float>
 *
 *	aoMap: new THREE.Texture( <Image> ),
 *	aoMapIntensity: <float>
 *
 *	emissive: <hex>,
 *	emissiveIntensity: <float>
 *	emissiveMap: new THREE.Texture( <Image> ),
 *
 *	specularMap: new THREE.Texture( <Image> ),
 *
 *	alphaMap: new THREE.Texture( <Image> ),
 *
 *	envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *	combine: THREE.Multiply,
 *	reflectivity: <float>,
 *	refractionRatio: <float>,
 *
 *	wireframe: <boolean>,
 *	wireframeLinewidth: <float>,
 *
 * }
 */

class MeshLambertMaterial extends Material {
	constructor(parameters) {
		super();
		this.type = 'MeshLambertMaterial';
		this.color = new Color(0xffffff); // diffuse

		this.map = null;
		this.lightMap = null;
		this.lightMapIntensity = 1.0;
		this.aoMap = null;
		this.aoMapIntensity = 1.0;
		this.emissive = new Color(0x000000);
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;
		this.specularMap = null;
		this.alphaMap = null;
		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;
		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.color.copy(source.color);
		this.map = source.map;
		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;
		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;
		this.emissive.copy(source.emissive);
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;
		this.specularMap = source.specularMap;
		this.alphaMap = source.alphaMap;
		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;
		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;
		return this;
	}

}

MeshLambertMaterial.prototype.isMeshLambertMaterial = true;

/**
 * parameters = {
 *	color: <hex>,
 *	opacity: <float>,
 *
 *	matcap: new THREE.Texture( <Image> ),
 *
 *	map: new THREE.Texture( <Image> ),
 *
 *	bumpMap: new THREE.Texture( <Image> ),
 *	bumpScale: <float>,
 *
 *	normalMap: new THREE.Texture( <Image> ),
 *	normalMapType: THREE.TangentSpaceNormalMap,
 *	normalScale: <Vector2>,
 *
 *	displacementMap: new THREE.Texture( <Image> ),
 *	displacementScale: <float>,
 *	displacementBias: <float>,
 *
 *	alphaMap: new THREE.Texture( <Image> ),
 *
 *	flatShading: <bool>
 * }
 */

class MeshMatcapMaterial extends Material {
	constructor(parameters) {
		super();
		this.defines = {
			'MATCAP': ''
		};
		this.type = 'MeshMatcapMaterial';
		this.color = new Color(0xffffff); // diffuse

		this.matcap = null;
		this.map = null;
		this.bumpMap = null;
		this.bumpScale = 1;
		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2(1, 1);
		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;
		this.alphaMap = null;
		this.flatShading = false;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.defines = {
			'MATCAP': ''
		};
		this.color.copy(source.color);
		this.matcap = source.matcap;
		this.map = source.map;
		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;
		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy(source.normalScale);
		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;
		this.alphaMap = source.alphaMap;
		this.flatShading = source.flatShading;
		return this;
	}

}

MeshMatcapMaterial.prototype.isMeshMatcapMaterial = true;

/**
 * parameters = {
 *	color: <hex>,
 *	opacity: <float>,
 *
 *	linewidth: <float>,
 *
 *	scale: <float>,
 *	dashSize: <float>,
 *	gapSize: <float>
 * }
 */

class LineDashedMaterial extends LineBasicMaterial {
	constructor(parameters) {
		super();
		this.type = 'LineDashedMaterial';
		this.scale = 1;
		this.dashSize = 3;
		this.gapSize = 1;
		this.setValues(parameters);
	}

	copy(source) {
		super.copy(source);
		this.scale = source.scale;
		this.dashSize = source.dashSize;
		this.gapSize = source.gapSize;
		return this;
	}

}

LineDashedMaterial.prototype.isLineDashedMaterial = true;

var Materials = /*#__PURE__*/Object.freeze({
	__proto__: null,
	ShadowMaterial: ShadowMaterial,
	SpriteMaterial: SpriteMaterial,
	RawShaderMaterial: RawShaderMaterial,
	ShaderMaterial: ShaderMaterial,
	PointsMaterial: PointsMaterial,
	MeshPhysicalMaterial: MeshPhysicalMaterial,
	MeshStandardMaterial: MeshStandardMaterial,
	MeshPhongMaterial: MeshPhongMaterial,
	MeshToonMaterial: MeshToonMaterial,
	MeshNormalMaterial: MeshNormalMaterial,
	MeshLambertMaterial: MeshLambertMaterial,
	MeshDepthMaterial: MeshDepthMaterial,
	MeshDistanceMaterial: MeshDistanceMaterial,
	MeshBasicMaterial: MeshBasicMaterial,
	MeshMatcapMaterial: MeshMatcapMaterial,
	LineDashedMaterial: LineDashedMaterial,
	LineBasicMaterial: LineBasicMaterial,
	Material: Material
});

const AnimationUtils = {
	// same as Array.prototype.slice, but also works on typed arrays
	arraySlice: function (array, from, to) {
		if (AnimationUtils.isTypedArray(array)) {
			// in ios9 array.subarray(from, undefined) will return empty array
			// but array.subarray(from) or array.subarray(from, len) is correct
			return new array.constructor(array.subarray(from, to !== undefined ? to : array.length));
		}

		return array.slice(from, to);
	},
	// converts an array to a specific type
	convertArray: function (array, type, forceClone) {
		if (!array || // let 'undefined' and 'null' pass
		!forceClone && array.constructor === type) return array;

		if (typeof type.BYTES_PER_ELEMENT === 'number') {
			return new type(array); // create typed array
		}

		return Array.prototype.slice.call(array); // create Array
	},
	isTypedArray: function (object) {
		return ArrayBuffer.isView(object) && !(object instanceof DataView);
	},
	// returns an array by which times and values can be sorted
	getKeyframeOrder: function (times) {
		function compareTime(i, j) {
			return times[i] - times[j];
		}

		const n = times.length;
		const result = new Array(n);

		for (let i = 0; i !== n; ++i) result[i] = i;

		result.sort(compareTime);
		return result;
	},
	// uses the array previously returned by 'getKeyframeOrder' to sort data
	sortedArray: function (values, stride, order) {
		const nValues = values.length;
		const result = new values.constructor(nValues);

		for (let i = 0, dstOffset = 0; dstOffset !== nValues; ++i) {
			const srcOffset = order[i] * stride;

			for (let j = 0; j !== stride; ++j) {
				result[dstOffset++] = values[srcOffset + j];
			}
		}

		return result;
	},
	// function for parsing AOS keyframe formats
	flattenJSON: function (jsonKeys, times, values, valuePropertyName) {
		let i = 1,
				key = jsonKeys[0];

		while (key !== undefined && key[valuePropertyName] === undefined) {
			key = jsonKeys[i++];
		}

		if (key === undefined) return; // no data

		let value = key[valuePropertyName];
		if (value === undefined) return; // no data

		if (Array.isArray(value)) {
			do {
				value = key[valuePropertyName];

				if (value !== undefined) {
					times.push(key.time);
					values.push.apply(values, value); // push all elements
				}

				key = jsonKeys[i++];
			} while (key !== undefined);
		} else if (value.toArray !== undefined) {
			// ...assume THREE.Math-ish
			do {
				value = key[valuePropertyName];

				if (value !== undefined) {
					times.push(key.time);
					value.toArray(values, values.length);
				}

				key = jsonKeys[i++];
			} while (key !== undefined);
		} else {
			// otherwise push as-is
			do {
				value = key[valuePropertyName];

				if (value !== undefined) {
					times.push(key.time);
					values.push(value);
				}

				key = jsonKeys[i++];
			} while (key !== undefined);
		}
	},
	subclip: function (sourceClip, name, startFrame, endFrame, fps = 30) {
		const clip = sourceClip.clone();
		clip.name = name;
		const tracks = [];

		for (let i = 0; i < clip.tracks.length; ++i) {
			const track = clip.tracks[i];
			const valueSize = track.getValueSize();
			const times = [];
			const values = [];

			for (let j = 0; j < track.times.length; ++j) {
				const frame = track.times[j] * fps;
				if (frame < startFrame || frame >= endFrame) continue;
				times.push(track.times[j]);

				for (let k = 0; k < valueSize; ++k) {
					values.push(track.values[j * valueSize + k]);
				}
			}

			if (times.length === 0) continue;
			track.times = AnimationUtils.convertArray(times, track.times.constructor);
			track.values = AnimationUtils.convertArray(values, track.values.constructor);
			tracks.push(track);
		}

		clip.tracks = tracks; // find minimum .times value across all tracks in the trimmed clip

		let minStartTime = Infinity;

		for (let i = 0; i < clip.tracks.length; ++i) {
			if (minStartTime > clip.tracks[i].times[0]) {
				minStartTime = clip.tracks[i].times[0];
			}
		} // shift all tracks such that clip begins at t=0


		for (let i = 0; i < clip.tracks.length; ++i) {
			clip.tracks[i].shift(-1 * minStartTime);
		}

		clip.resetDuration();
		return clip;
	},
	makeClipAdditive: function (targetClip, referenceFrame = 0, referenceClip = targetClip, fps = 30) {
		if (fps <= 0) fps = 30;
		const numTracks = referenceClip.tracks.length;
		const referenceTime = referenceFrame / fps; // Make each track's values relative to the values at the reference frame

		for (let i = 0; i < numTracks; ++i) {
			const referenceTrack = referenceClip.tracks[i];
			const referenceTrackType = referenceTrack.ValueTypeName; // Skip this track if it's non-numeric

			if (referenceTrackType === 'bool' || referenceTrackType === 'string') continue; // Find the track in the target clip whose name and type matches the reference track

			const targetTrack = targetClip.tracks.find(function (track) {
				return track.name === referenceTrack.name && track.ValueTypeName === referenceTrackType;
			});
			if (targetTrack === undefined) continue;
			let referenceOffset = 0;
			const referenceValueSize = referenceTrack.getValueSize();

			if (referenceTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline) {
				referenceOffset = referenceValueSize / 3;
			}

			let targetOffset = 0;
			const targetValueSize = targetTrack.getValueSize();

			if (targetTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline) {
				targetOffset = targetValueSize / 3;
			}

			const lastIndex = referenceTrack.times.length - 1;
			let referenceValue; // Find the value to subtract out of the track

			if (referenceTime <= referenceTrack.times[0]) {
				// Reference frame is earlier than the first keyframe, so just use the first keyframe
				const startIndex = referenceOffset;
				const endIndex = referenceValueSize - referenceOffset;
				referenceValue = AnimationUtils.arraySlice(referenceTrack.values, startIndex, endIndex);
			} else if (referenceTime >= referenceTrack.times[lastIndex]) {
				// Reference frame is after the last keyframe, so just use the last keyframe
				const startIndex = lastIndex * referenceValueSize + referenceOffset;
				const endIndex = startIndex + referenceValueSize - referenceOffset;
				referenceValue = AnimationUtils.arraySlice(referenceTrack.values, startIndex, endIndex);
			} else {
				// Interpolate to the reference value
				const interpolant = referenceTrack.createInterpolant();
				const startIndex = referenceOffset;
				const endIndex = referenceValueSize - referenceOffset;
				interpolant.evaluate(referenceTime);
				referenceValue = AnimationUtils.arraySlice(interpolant.resultBuffer, startIndex, endIndex);
			} // Conjugate the quaternion


			if (referenceTrackType === 'quaternion') {
				const referenceQuat = new Quaternion().fromArray(referenceValue).normalize().conjugate();
				referenceQuat.toArray(referenceValue);
			} // Subtract the reference value from all of the track values


			const numTimes = targetTrack.times.length;

			for (let j = 0; j < numTimes; ++j) {
				const valueStart = j * targetValueSize + targetOffset;

				if (referenceTrackType === 'quaternion') {
					// Multiply the conjugate for quaternion track types
					Quaternion.multiplyQuaternionsFlat(targetTrack.values, valueStart, referenceValue, 0, targetTrack.values, valueStart);
				} else {
					const valueEnd = targetValueSize - targetOffset * 2; // Subtract each value for all other numeric track types

					for (let k = 0; k < valueEnd; ++k) {
						targetTrack.values[valueStart + k] -= referenceValue[k];
					}
				}
			}
		}

		targetClip.blendMode = AdditiveAnimationBlendMode;
		return targetClip;
	}
};

/**
 * Abstract base class of interpolants over parametric samples.
 *
 * The parameter domain is one dimensional, typically the time or a path
 * along a curve defined by the data.
 *
 * The sample values can have any dimensionality and derived classes may
 * apply special interpretations to the data.
 *
 * This class provides the interval seek in a Template Method, deferring
 * the actual interpolation to derived classes.
 *
 * Time complexity is O(1) for linear access crossing at most two points
 * and O(log N) for random access, where N is the number of positions.
 *
 * References:
 *
 * 		http://www.oodesign.com/template-method-pattern.html
 *
 */
class Interpolant {
	constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
		this.parameterPositions = parameterPositions;
		this._cachedIndex = 0;
		this.resultBuffer = resultBuffer !== undefined ? resultBuffer : new sampleValues.constructor(sampleSize);
		this.sampleValues = sampleValues;
		this.valueSize = sampleSize;
		this.settings = null;
		this.DefaultSettings_ = {};
	}

	evaluate(t) {
		const pp = this.parameterPositions;
		let i1 = this._cachedIndex,
				t1 = pp[i1],
				t0 = pp[i1 - 1];

		validate_interval: {
			seek: {
				let right;

				linear_scan: {
					//- See http://jsperf.com/comparison-to-undefined/3
					//- slower code:
					//-
					//- 				if ( t >= t1 || t1 === undefined ) {
					forward_scan: if (!(t < t1)) {
						for (let giveUpAt = i1 + 2;;) {
							if (t1 === undefined) {
								if (t < t0) break forward_scan; // after end

								i1 = pp.length;
								this._cachedIndex = i1;
								return this.afterEnd_(i1 - 1, t, t0);
							}

							if (i1 === giveUpAt) break; // this loop

							t0 = t1;
							t1 = pp[++i1];

							if (t < t1) {
								// we have arrived at the sought interval
								break seek;
							}
						} // prepare binary search on the right side of the index


						right = pp.length;
						break linear_scan;
					} //- slower code:
					//-					if ( t < t0 || t0 === undefined ) {


					if (!(t >= t0)) {
						// looping?
						const t1global = pp[1];

						if (t < t1global) {
							i1 = 2; // + 1, using the scan for the details

							t0 = t1global;
						} // linear reverse scan


						for (let giveUpAt = i1 - 2;;) {
							if (t0 === undefined) {
								// before start
								this._cachedIndex = 0;
								return this.beforeStart_(0, t, t1);
							}

							if (i1 === giveUpAt) break; // this loop

							t1 = t0;
							t0 = pp[--i1 - 1];

							if (t >= t0) {
								// we have arrived at the sought interval
								break seek;
							}
						} // prepare binary search on the left side of the index


						right = i1;
						i1 = 0;
						break linear_scan;
					} // the interval is valid


					break validate_interval;
				} // linear scan
				// binary search


				while (i1 < right) {
					const mid = i1 + right >>> 1;

					if (t < pp[mid]) {
						right = mid;
					} else {
						i1 = mid + 1;
					}
				}

				t1 = pp[i1];
				t0 = pp[i1 - 1]; // check boundary cases, again

				if (t0 === undefined) {
					this._cachedIndex = 0;
					return this.beforeStart_(0, t, t1);
				}

				if (t1 === undefined) {
					i1 = pp.length;
					this._cachedIndex = i1;
					return this.afterEnd_(i1 - 1, t0, t);
				}
			} // seek


			this._cachedIndex = i1;
			this.intervalChanged_(i1, t0, t1);
		} // validate_interval


		return this.interpolate_(i1, t0, t, t1);
	}

	getSettings_() {
		return this.settings || this.DefaultSettings_;
	}

	copySampleValue_(index) {
		// copies a sample value to the result buffer
		const result = this.resultBuffer,
					values = this.sampleValues,
					stride = this.valueSize,
					offset = index * stride;

		for (let i = 0; i !== stride; ++i) {
			result[i] = values[offset + i];
		}

		return result;
	} // Template methods for derived classes:


	interpolate_() {
		throw new Error('call to abstract method'); // implementations shall return this.resultBuffer
	}

	intervalChanged_() {// empty
	}

} // ALIAS DEFINITIONS


Interpolant.prototype.beforeStart_ = Interpolant.prototype.copySampleValue_;
Interpolant.prototype.afterEnd_ = Interpolant.prototype.copySampleValue_;

/**
 * Fast and simple cubic spline interpolant.
 *
 * It was derived from a Hermitian construction setting the first derivative
 * at each sample position to the linear slope between neighboring positions
 * over their parameter interval.
 */

class CubicInterpolant extends Interpolant {
	constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
		super(parameterPositions, sampleValues, sampleSize, resultBuffer);
		this._weightPrev = -0;
		this._offsetPrev = -0;
		this._weightNext = -0;
		this._offsetNext = -0;
		this.DefaultSettings_ = {
			endingStart: ZeroCurvatureEnding,
			endingEnd: ZeroCurvatureEnding
		};
	}

	intervalChanged_(i1, t0, t1) {
		const pp = this.parameterPositions;
		let iPrev = i1 - 2,
				iNext = i1 + 1,
				tPrev = pp[iPrev],
				tNext = pp[iNext];

		if (tPrev === undefined) {
			switch (this.getSettings_().endingStart) {
				case ZeroSlopeEnding:
					// f'(t0) = 0
					iPrev = i1;
					tPrev = 2 * t0 - t1;
					break;

				case WrapAroundEnding:
					// use the other end of the curve
					iPrev = pp.length - 2;
					tPrev = t0 + pp[iPrev] - pp[iPrev + 1];
					break;

				default:
					// ZeroCurvatureEnding
					// f''(t0) = 0 a.k.a. Natural Spline
					iPrev = i1;
					tPrev = t1;
			}
		}

		if (tNext === undefined) {
			switch (this.getSettings_().endingEnd) {
				case ZeroSlopeEnding:
					// f'(tN) = 0
					iNext = i1;
					tNext = 2 * t1 - t0;
					break;

				case WrapAroundEnding:
					// use the other end of the curve
					iNext = 1;
					tNext = t1 + pp[1] - pp[0];
					break;

				default:
					// ZeroCurvatureEnding
					// f''(tN) = 0, a.k.a. Natural Spline
					iNext = i1 - 1;
					tNext = t0;
			}
		}

		const halfDt = (t1 - t0) * 0.5,
					stride = this.valueSize;
		this._weightPrev = halfDt / (t0 - tPrev);
		this._weightNext = halfDt / (tNext - t1);
		this._offsetPrev = iPrev * stride;
		this._offsetNext = iNext * stride;
	}

	interpolate_(i1, t0, t, t1) {
		const result = this.resultBuffer,
					values = this.sampleValues,
					stride = this.valueSize,
					o1 = i1 * stride,
					o0 = o1 - stride,
					oP = this._offsetPrev,
					oN = this._offsetNext,
					wP = this._weightPrev,
					wN = this._weightNext,
					p = (t - t0) / (t1 - t0),
					pp = p * p,
					ppp = pp * p; // evaluate polynomials

		const sP = -wP * ppp + 2 * wP * pp - wP * p;
		const s0 = (1 + wP) * ppp + (-1.5 - 2 * wP) * pp + (-0.5 + wP) * p + 1;
		const s1 = (-1 - wN) * ppp + (1.5 + wN) * pp + 0.5 * p;
		const sN = wN * ppp - wN * pp; // combine data linearly

		for (let i = 0; i !== stride; ++i) {
			result[i] = sP * values[oP + i] + s0 * values[o0 + i] + s1 * values[o1 + i] + sN * values[oN + i];
		}

		return result;
	}

}

class LinearInterpolant extends Interpolant {
	constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
		super(parameterPositions, sampleValues, sampleSize, resultBuffer);
	}

	interpolate_(i1, t0, t, t1) {
		const result = this.resultBuffer,
					values = this.sampleValues,
					stride = this.valueSize,
					offset1 = i1 * stride,
					offset0 = offset1 - stride,
					weight1 = (t - t0) / (t1 - t0),
					weight0 = 1 - weight1;

		for (let i = 0; i !== stride; ++i) {
			result[i] = values[offset0 + i] * weight0 + values[offset1 + i] * weight1;
		}

		return result;
	}

}

/**
 *
 * Interpolant that evaluates to the sample value at the position preceeding
 * the parameter.
 */

class DiscreteInterpolant extends Interpolant {
	constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
		super(parameterPositions, sampleValues, sampleSize, resultBuffer);
	}

	interpolate_(i1
	/*, t0, t, t1 */
	) {
		return this.copySampleValue_(i1 - 1);
	}

}

class KeyframeTrack {
	constructor(name, times, values, interpolation) {
		if (name === undefined) throw new Error('THREE.KeyframeTrack: track name is undefined');
		if (times === undefined || times.length === 0) throw new Error('THREE.KeyframeTrack: no keyframes in track named ' + name);
		this.name = name;
		this.times = AnimationUtils.convertArray(times, this.TimeBufferType);
		this.values = AnimationUtils.convertArray(values, this.ValueBufferType);
		this.setInterpolation(interpolation || this.DefaultInterpolation);
	} // Serialization (in static context, because of constructor invocation
	// and automatic invocation of .toJSON):


	static toJSON(track) {
		const trackType = track.constructor;
		let json; // derived classes can define a static toJSON method

		if (trackType.toJSON !== this.toJSON) {
			json = trackType.toJSON(track);
		} else {
			// by default, we assume the data can be serialized as-is
			json = {
				'name': track.name,
				'times': AnimationUtils.convertArray(track.times, Array),
				'values': AnimationUtils.convertArray(track.values, Array)
			};
			const interpolation = track.getInterpolation();

			if (interpolation !== track.DefaultInterpolation) {
				json.interpolation = interpolation;
			}
		}

		json.type = track.ValueTypeName; // mandatory

		return json;
	}

	InterpolantFactoryMethodDiscrete(result) {
		return new DiscreteInterpolant(this.times, this.values, this.getValueSize(), result);
	}

	InterpolantFactoryMethodLinear(result) {
		return new LinearInterpolant(this.times, this.values, this.getValueSize(), result);
	}

	InterpolantFactoryMethodSmooth(result) {
		return new CubicInterpolant(this.times, this.values, this.getValueSize(), result);
	}

	setInterpolation(interpolation) {
		let factoryMethod;

		switch (interpolation) {
			case InterpolateDiscrete:
				factoryMethod = this.InterpolantFactoryMethodDiscrete;
				break;

			case InterpolateLinear:
				factoryMethod = this.InterpolantFactoryMethodLinear;
				break;

			case InterpolateSmooth:
				factoryMethod = this.InterpolantFactoryMethodSmooth;
				break;
		}

		if (factoryMethod === undefined) {
			const message = 'unsupported interpolation for ' + this.ValueTypeName + ' keyframe track named ' + this.name;

			if (this.createInterpolant === undefined) {
				// fall back to default, unless the default itself is messed up
				if (interpolation !== this.DefaultInterpolation) {
					this.setInterpolation(this.DefaultInterpolation);
				} else {
					throw new Error(message); // fatal, in this case
				}
			}

			console.warn('THREE.KeyframeTrack:', message);
			return this;
		}

		this.createInterpolant = factoryMethod;
		return this;
	}

	getInterpolation() {
		switch (this.createInterpolant) {
			case this.InterpolantFactoryMethodDiscrete:
				return InterpolateDiscrete;

			case this.InterpolantFactoryMethodLinear:
				return InterpolateLinear;

			case this.InterpolantFactoryMethodSmooth:
				return InterpolateSmooth;
		}
	}

	getValueSize() {
		return this.values.length / this.times.length;
	} // move all keyframes either forwards or backwards in time


	shift(timeOffset) {
		if (timeOffset !== 0.0) {
			const times = this.times;

			for (let i = 0, n = times.length; i !== n; ++i) {
				times[i] += timeOffset;
			}
		}

		return this;
	} // scale all keyframe times by a factor (useful for frame <-> seconds conversions)


	scale(timeScale) {
		if (timeScale !== 1.0) {
			const times = this.times;

			for (let i = 0, n = times.length; i !== n; ++i) {
				times[i] *= timeScale;
			}
		}

		return this;
	} // removes keyframes before and after animation without changing any values within the range [startTime, endTime].
	// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values


	trim(startTime, endTime) {
		const times = this.times,
					nKeys = times.length;
		let from = 0,
				to = nKeys - 1;

		while (from !== nKeys && times[from] < startTime) {
			++from;
		}

		while (to !== -1 && times[to] > endTime) {
			--to;
		}

		++to; // inclusive -> exclusive bound

		if (from !== 0 || to !== nKeys) {
			// empty tracks are forbidden, so keep at least one keyframe
			if (from >= to) {
				to = Math.max(to, 1);
				from = to - 1;
			}

			const stride = this.getValueSize();
			this.times = AnimationUtils.arraySlice(times, from, to);
			this.values = AnimationUtils.arraySlice(this.values, from * stride, to * stride);
		}

		return this;
	} // ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable


	validate() {
		let valid = true;
		const valueSize = this.getValueSize();

		if (valueSize - Math.floor(valueSize) !== 0) {
			console.error('THREE.KeyframeTrack: Invalid value size in track.', this);
			valid = false;
		}

		const times = this.times,
					values = this.values,
					nKeys = times.length;

		if (nKeys === 0) {
			console.error('THREE.KeyframeTrack: Track is empty.', this);
			valid = false;
		}

		let prevTime = null;

		for (let i = 0; i !== nKeys; i++) {
			const currTime = times[i];

			if (typeof currTime === 'number' && isNaN(currTime)) {
				console.error('THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime);
				valid = false;
				break;
			}

			if (prevTime !== null && prevTime > currTime) {
				console.error('THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime);
				valid = false;
				break;
			}

			prevTime = currTime;
		}

		if (values !== undefined) {
			if (AnimationUtils.isTypedArray(values)) {
				for (let i = 0, n = values.length; i !== n; ++i) {
					const value = values[i];

					if (isNaN(value)) {
						console.error('THREE.KeyframeTrack: Value is not a valid number.', this, i, value);
						valid = false;
						break;
					}
				}
			}
		}

		return valid;
	} // removes equivalent sequential keys as common in morph target sequences
	// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)


	optimize() {
		// times or values may be shared with other tracks, so overwriting is unsafe
		const times = AnimationUtils.arraySlice(this.times),
					values = AnimationUtils.arraySlice(this.values),
					stride = this.getValueSize(),
					smoothInterpolation = this.getInterpolation() === InterpolateSmooth,
					lastIndex = times.length - 1;
		let writeIndex = 1;

		for (let i = 1; i < lastIndex; ++i) {
			let keep = false;
			const time = times[i];
			const timeNext = times[i + 1]; // remove adjacent keyframes scheduled at the same time

			if (time !== timeNext && (i !== 1 || time !== times[0])) {
				if (!smoothInterpolation) {
					// remove unnecessary keyframes same as their neighbors
					const offset = i * stride,
								offsetP = offset - stride,
								offsetN = offset + stride;

					for (let j = 0; j !== stride; ++j) {
						const value = values[offset + j];

						if (value !== values[offsetP + j] || value !== values[offsetN + j]) {
							keep = true;
							break;
						}
					}
				} else {
					keep = true;
				}
			} // in-place compaction


			if (keep) {
				if (i !== writeIndex) {
					times[writeIndex] = times[i];
					const readOffset = i * stride,
								writeOffset = writeIndex * stride;

					for (let j = 0; j !== stride; ++j) {
						values[writeOffset + j] = values[readOffset + j];
					}
				}

				++writeIndex;
			}
		} // flush last keyframe (compaction looks ahead)


		if (lastIndex > 0) {
			times[writeIndex] = times[lastIndex];

			for (let readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++j) {
				values[writeOffset + j] = values[readOffset + j];
			}

			++writeIndex;
		}

		if (writeIndex !== times.length) {
			this.times = AnimationUtils.arraySlice(times, 0, writeIndex);
			this.values = AnimationUtils.arraySlice(values, 0, writeIndex * stride);
		} else {
			this.times = times;
			this.values = values;
		}

		return this;
	}

	clone() {
		const times = AnimationUtils.arraySlice(this.times, 0);
		const values = AnimationUtils.arraySlice(this.values, 0);
		const TypedKeyframeTrack = this.constructor;
		const track = new TypedKeyframeTrack(this.name, times, values); // Interpolant argument to constructor is not saved, so copy the factory method directly.

		track.createInterpolant = this.createInterpolant;
		return track;
	}

}

KeyframeTrack.prototype.TimeBufferType = Float32Array;
KeyframeTrack.prototype.ValueBufferType = Float32Array;
KeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;

/**
 * A Track of Boolean keyframe values.
 */

class BooleanKeyframeTrack extends KeyframeTrack {}

BooleanKeyframeTrack.prototype.ValueTypeName = 'bool';
BooleanKeyframeTrack.prototype.ValueBufferType = Array;
BooleanKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
BooleanKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
BooleanKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined; // Note: Actually this track could have a optimized / compressed

/**
 * A Track of keyframe values that represent color.
 */

class ColorKeyframeTrack extends KeyframeTrack {}

ColorKeyframeTrack.prototype.ValueTypeName = 'color'; // ValueBufferType is inherited

/**
 * A Track of numeric keyframe values.
 */

class NumberKeyframeTrack extends KeyframeTrack {}

NumberKeyframeTrack.prototype.ValueTypeName = 'number'; // ValueBufferType is inherited

/**
 * Spherical linear unit quaternion interpolant.
 */

class QuaternionLinearInterpolant extends Interpolant {
	constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
		super(parameterPositions, sampleValues, sampleSize, resultBuffer);
	}

	interpolate_(i1, t0, t, t1) {
		const result = this.resultBuffer,
					values = this.sampleValues,
					stride = this.valueSize,
					alpha = (t - t0) / (t1 - t0);
		let offset = i1 * stride;

		for (let end = offset + stride; offset !== end; offset += 4) {
			Quaternion.slerpFlat(result, 0, values, offset - stride, values, offset, alpha);
		}

		return result;
	}

}

/**
 * A Track of quaternion keyframe values.
 */

class QuaternionKeyframeTrack extends KeyframeTrack {
	InterpolantFactoryMethodLinear(result) {
		return new QuaternionLinearInterpolant(this.times, this.values, this.getValueSize(), result);
	}

}

QuaternionKeyframeTrack.prototype.ValueTypeName = 'quaternion'; // ValueBufferType is inherited

QuaternionKeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;
QuaternionKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;

/**
 * A Track that interpolates Strings
 */

class StringKeyframeTrack extends KeyframeTrack {}

StringKeyframeTrack.prototype.ValueTypeName = 'string';
StringKeyframeTrack.prototype.ValueBufferType = Array;
StringKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
StringKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
StringKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;

/**
 * A Track of vectored keyframe values.
 */

class VectorKeyframeTrack extends KeyframeTrack {}

VectorKeyframeTrack.prototype.ValueTypeName = 'vector'; // ValueBufferType is inherited

class AnimationClip {
	constructor(name, duration = -1, tracks, blendMode = NormalAnimationBlendMode) {
		this.name = name;
		this.tracks = tracks;
		this.duration = duration;
		this.blendMode = blendMode;
		this.uuid = generateUUID(); // this means it should figure out its duration by scanning the tracks

		if (this.duration < 0) {
			this.resetDuration();
		}
	}

	static parse(json) {
		const tracks = [],
					jsonTracks = json.tracks,
					frameTime = 1.0 / (json.fps || 1.0);

		for (let i = 0, n = jsonTracks.length; i !== n; ++i) {
			tracks.push(parseKeyframeTrack(jsonTracks[i]).scale(frameTime));
		}

		const clip = new this(json.name, json.duration, tracks, json.blendMode);
		clip.uuid = json.uuid;
		return clip;
	}

	static toJSON(clip) {
		const tracks = [],
					clipTracks = clip.tracks;
		const json = {
			'name': clip.name,
			'duration': clip.duration,
			'tracks': tracks,
			'uuid': clip.uuid,
			'blendMode': clip.blendMode
		};

		for (let i = 0, n = clipTracks.length; i !== n; ++i) {
			tracks.push(KeyframeTrack.toJSON(clipTracks[i]));
		}

		return json;
	}

	static CreateFromMorphTargetSequence(name, morphTargetSequence, fps, noLoop) {
		const numMorphTargets = morphTargetSequence.length;
		const tracks = [];

		for (let i = 0; i < numMorphTargets; i++) {
			let times = [];
			let values = [];
			times.push((i + numMorphTargets - 1) % numMorphTargets, i, (i + 1) % numMorphTargets);
			values.push(0, 1, 0);
			const order = AnimationUtils.getKeyframeOrder(times);
			times = AnimationUtils.sortedArray(times, 1, order);
			values = AnimationUtils.sortedArray(values, 1, order); // if there is a key at the first frame, duplicate it as the
			// last frame as well for perfect loop.

			if (!noLoop && times[0] === 0) {
				times.push(numMorphTargets);
				values.push(values[0]);
			}

			tracks.push(new NumberKeyframeTrack('.morphTargetInfluences[' + morphTargetSequence[i].name + ']', times, values).scale(1.0 / fps));
		}

		return new this(name, -1, tracks);
	}

	static findByName(objectOrClipArray, name) {
		let clipArray = objectOrClipArray;

		if (!Array.isArray(objectOrClipArray)) {
			const o = objectOrClipArray;
			clipArray = o.geometry && o.geometry.animations || o.animations;
		}

		for (let i = 0; i < clipArray.length; i++) {
			if (clipArray[i].name === name) {
				return clipArray[i];
			}
		}

		return null;
	}

	static CreateClipsFromMorphTargetSequences(morphTargets, fps, noLoop) {
		const animationToMorphTargets = {}; // tested with https://regex101.com/ on trick sequences
		// such flamingo_flyA_003, flamingo_run1_003, crdeath0059

		const pattern = /^([\w-]*?)([\d]+)$/; // sort morph target names into animation groups based
		// patterns like Walk_001, Walk_002, Run_001, Run_002

		for (let i = 0, il = morphTargets.length; i < il; i++) {
			const morphTarget = morphTargets[i];
			const parts = morphTarget.name.match(pattern);

			if (parts && parts.length > 1) {
				const name = parts[1];
				let animationMorphTargets = animationToMorphTargets[name];

				if (!animationMorphTargets) {
					animationToMorphTargets[name] = animationMorphTargets = [];
				}

				animationMorphTargets.push(morphTarget);
			}
		}

		const clips = [];

		for (const name in animationToMorphTargets) {
			clips.push(this.CreateFromMorphTargetSequence(name, animationToMorphTargets[name], fps, noLoop));
		}

		return clips;
	} // parse the animation.hierarchy format


	static parseAnimation(animation, bones) {
		if (!animation) {
			console.error('THREE.AnimationClip: No animation in JSONLoader data.');
			return null;
		}

		const addNonemptyTrack = function (trackType, trackName, animationKeys, propertyName, destTracks) {
			// only return track if there are actually keys.
			if (animationKeys.length !== 0) {
				const times = [];
				const values = [];
				AnimationUtils.flattenJSON(animationKeys, times, values, propertyName); // empty keys are filtered out, so check again

				if (times.length !== 0) {
					destTracks.push(new trackType(trackName, times, values));
				}
			}
		};

		const tracks = [];
		const clipName = animation.name || 'default';
		const fps = animation.fps || 30;
		const blendMode = animation.blendMode; // automatic length determination in AnimationClip.

		let duration = animation.length || -1;
		const hierarchyTracks = animation.hierarchy || [];

		for (let h = 0; h < hierarchyTracks.length; h++) {
			const animationKeys = hierarchyTracks[h].keys; // skip empty tracks

			if (!animationKeys || animationKeys.length === 0) continue; // process morph targets

			if (animationKeys[0].morphTargets) {
				// figure out all morph targets used in this track
				const morphTargetNames = {};
				let k;

				for (k = 0; k < animationKeys.length; k++) {
					if (animationKeys[k].morphTargets) {
						for (let m = 0; m < animationKeys[k].morphTargets.length; m++) {
							morphTargetNames[animationKeys[k].morphTargets[m]] = -1;
						}
					}
				} // create a track for each morph target with all zero
				// morphTargetInfluences except for the keys in which
				// the morphTarget is named.


				for (const morphTargetName in morphTargetNames) {
					const times = [];
					const values = [];

					for (let m = 0; m !== animationKeys[k].morphTargets.length; ++m) {
						const animationKey = animationKeys[k];
						times.push(animationKey.time);
						values.push(animationKey.morphTarget === morphTargetName ? 1 : 0);
					}

					tracks.push(new NumberKeyframeTrack('.morphTargetInfluence[' + morphTargetName + ']', times, values));
				}

				duration = morphTargetNames.length * (fps || 1.0);
			} else {
				// ...assume skeletal animation
				const boneName = '.bones[' + bones[h].name + ']';
				addNonemptyTrack(VectorKeyframeTrack, boneName + '.position', animationKeys, 'pos', tracks);
				addNonemptyTrack(QuaternionKeyframeTrack, boneName + '.quaternion', animationKeys, 'rot', tracks);
				addNonemptyTrack(VectorKeyframeTrack, boneName + '.scale', animationKeys, 'scl', tracks);
			}
		}

		if (tracks.length === 0) {
			return null;
		}

		const clip = new this(clipName, duration, tracks, blendMode);
		return clip;
	}

	resetDuration() {
		const tracks = this.tracks;
		let duration = 0;

		for (let i = 0, n = tracks.length; i !== n; ++i) {
			const track = this.tracks[i];
			duration = Math.max(duration, track.times[track.times.length - 1]);
		}

		this.duration = duration;
		return this;
	}

	trim() {
		for (let i = 0; i < this.tracks.length; i++) {
			this.tracks[i].trim(0, this.duration);
		}

		return this;
	}

	validate() {
		let valid = true;

		for (let i = 0; i < this.tracks.length; i++) {
			valid = valid && this.tracks[i].validate();
		}

		return valid;
	}

	optimize() {
		for (let i = 0; i < this.tracks.length; i++) {
			this.tracks[i].optimize();
		}

		return this;
	}

	clone() {
		const tracks = [];

		for (let i = 0; i < this.tracks.length; i++) {
			tracks.push(this.tracks[i].clone());
		}

		return new this.constructor(this.name, this.duration, tracks, this.blendMode);
	}

	toJSON() {
		return this.constructor.toJSON(this);
	}

}

function getTrackTypeForValueTypeName(typeName) {
	switch (typeName.toLowerCase()) {
		case 'scalar':
		case 'double':
		case 'float':
		case 'number':
		case 'integer':
			return NumberKeyframeTrack;

		case 'vector':
		case 'vector2':
		case 'vector3':
		case 'vector4':
			return VectorKeyframeTrack;

		case 'color':
			return ColorKeyframeTrack;

		case 'quaternion':
			return QuaternionKeyframeTrack;

		case 'bool':
		case 'boolean':
			return BooleanKeyframeTrack;

		case 'string':
			return StringKeyframeTrack;
	}

	throw new Error('THREE.KeyframeTrack: Unsupported typeName: ' + typeName);
}

function parseKeyframeTrack(json) {
	if (json.type === undefined) {
		throw new Error('THREE.KeyframeTrack: track type undefined, can not parse');
	}

	const trackType = getTrackTypeForValueTypeName(json.type);

	if (json.times === undefined) {
		const times = [],
					values = [];
		AnimationUtils.flattenJSON(json.keys, times, values, 'value');
		json.times = times;
		json.values = values;
	} // derived classes can define a static parse method


	if (trackType.parse !== undefined) {
		return trackType.parse(json);
	} else {
		// by default, we assume a constructor compatible with the base
		return new trackType(json.name, json.times, json.values, json.interpolation);
	}
}

const Cache = {
	enabled: false,
	files: {},
	add: function (key, file) {
		if (this.enabled === false) return; // console.log( 'THREE.Cache', 'Adding key:', key );

		this.files[key] = file;
	},
	get: function (key) {
		if (this.enabled === false) return; // console.log( 'THREE.Cache', 'Checking key:', key );

		return this.files[key];
	},
	remove: function (key) {
		delete this.files[key];
	},
	clear: function () {
		this.files = {};
	}
};

class LoadingManager {
	constructor(onLoad, onProgress, onError) {
		const scope = this;
		let isLoading = false;
		let itemsLoaded = 0;
		let itemsTotal = 0;
		let urlModifier = undefined;
		const handlers = []; // Refer to #5689 for the reason why we don't set .onStart
		// in the constructor

		this.onStart = undefined;
		this.onLoad = onLoad;
		this.onProgress = onProgress;
		this.onError = onError;

		this.itemStart = function (url) {
			itemsTotal++;

			if (isLoading === false) {
				if (scope.onStart !== undefined) {
					scope.onStart(url, itemsLoaded, itemsTotal);
				}
			}

			isLoading = true;
		};

		this.itemEnd = function (url) {
			itemsLoaded++;

			if (scope.onProgress !== undefined) {
				scope.onProgress(url, itemsLoaded, itemsTotal);
			}

			if (itemsLoaded === itemsTotal) {
				isLoading = false;

				if (scope.onLoad !== undefined) {
					scope.onLoad();
				}
			}
		};

		this.itemError = function (url) {
			if (scope.onError !== undefined) {
				scope.onError(url);
			}
		};

		this.resolveURL = function (url) {
			if (urlModifier) {
				return urlModifier(url);
			}

			return url;
		};

		this.setURLModifier = function (transform) {
			urlModifier = transform;
			return this;
		};

		this.addHandler = function (regex, loader) {
			handlers.push(regex, loader);
			return this;
		};

		this.removeHandler = function (regex) {
			const index = handlers.indexOf(regex);

			if (index !== -1) {
				handlers.splice(index, 2);
			}

			return this;
		};

		this.getHandler = function (file) {
			for (let i = 0, l = handlers.length; i < l; i += 2) {
				const regex = handlers[i];
				const loader = handlers[i + 1];
				if (regex.global) regex.lastIndex = 0; // see #17920

				if (regex.test(file)) {
					return loader;
				}
			}

			return null;
		};
	}

}

const DefaultLoadingManager = new LoadingManager();

class Loader {
	constructor(manager) {
		this.manager = manager !== undefined ? manager : DefaultLoadingManager;
		this.crossOrigin = 'anonymous';
		this.withCredentials = false;
		this.path = '';
		this.resourcePath = '';
		this.requestHeader = {};
	}

	load() {}

	loadAsync(url, onProgress) {
		const scope = this;
		return new Promise(function (resolve, reject) {
			scope.load(url, resolve, onProgress, reject);
		});
	}

	parse() {}

	setCrossOrigin(crossOrigin) {
		this.crossOrigin = crossOrigin;
		return this;
	}

	setWithCredentials(value) {
		this.withCredentials = value;
		return this;
	}

	setPath(path) {
		this.path = path;
		return this;
	}

	setResourcePath(resourcePath) {
		this.resourcePath = resourcePath;
		return this;
	}

	setRequestHeader(requestHeader) {
		this.requestHeader = requestHeader;
		return this;
	}

}

const loading = {};

class FileLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(url, onLoad, onProgress, onError) {
		if (url === undefined) url = '';
		if (this.path !== undefined) url = this.path + url;
		url = this.manager.resolveURL(url);
		const cached = Cache.get(url);

		if (cached !== undefined) {
			this.manager.itemStart(url);
			setTimeout(() => {
				if (onLoad) onLoad(cached);
				this.manager.itemEnd(url);
			}, 0);
			return cached;
		} // Check if request is duplicate


		if (loading[url] !== undefined) {
			loading[url].push({
				onLoad: onLoad,
				onProgress: onProgress,
				onError: onError
			});
			return;
		} // Initialise array for duplicate requests


		loading[url] = [];
		loading[url].push({
			onLoad: onLoad,
			onProgress: onProgress,
			onError: onError
		}); // create request

		const req = new Request(url, {
			headers: new Headers(this.requestHeader),
			credentials: this.withCredentials ? 'include' : 'same-origin' // An abort controller could be added within a future PR

		}); // record states ( avoid data race )

		const mimeType = this.mimeType;
		const responseType = this.responseType; // start the fetch

		fetch(req).then(response => {
			if (response.status === 200 || response.status === 0) {
				// Some browsers return HTTP Status 0 when using non-http protocol
				// e.g. 'file://' or 'data://'. Handle as success.
				if (response.status === 0) {
					console.warn('THREE.FileLoader: HTTP Status 0 received.');
				}

				if (typeof ReadableStream === 'undefined' || response.body.getReader === undefined) {
					return response;
				}

				const callbacks = loading[url];
				const reader = response.body.getReader();
				const contentLength = response.headers.get('Content-Length');
				const total = contentLength ? parseInt(contentLength) : 0;
				const lengthComputable = total !== 0;
				let loaded = 0; // periodically read data into the new stream tracking while download progress

				const stream = new ReadableStream({
					start(controller) {
						readData();

						function readData() {
							reader.read().then(({
								done,
								value
							}) => {
								if (done) {
									controller.close();
								} else {
									loaded += value.byteLength;
									const event = new ProgressEvent('progress', {
										lengthComputable,
										loaded,
										total
									});

									for (let i = 0, il = callbacks.length; i < il; i++) {
										const callback = callbacks[i];
										if (callback.onProgress) callback.onProgress(event);
									}

									controller.enqueue(value);
									readData();
								}
							});
						}
					}

				});
				return new Response(stream);
			} else {
				throw Error(`fetch for "${response.url}" responded with ${response.status}: ${response.statusText}`);
			}
		}).then(response => {
			switch (responseType) {
				case 'arraybuffer':
					return response.arrayBuffer();

				case 'blob':
					return response.blob();

				case 'document':
					return response.text().then(text => {
						const parser = new DOMParser();
						return parser.parseFromString(text, mimeType);
					});

				case 'json':
					return response.json();

				default:
					if (mimeType === undefined) {
						return response.text();
					} else {
						// sniff encoding
						const re = /charset="?([^;"\s]*)"?/i;
						const exec = re.exec(mimeType);
						const label = exec && exec[1] ? exec[1].toLowerCase() : undefined;
						const decoder = new TextDecoder(label);
						return response.arrayBuffer().then(ab => decoder.decode(ab));
					}

			}
		}).then(data => {
			// Add to cache only on HTTP success, so that we do not cache
			// error response bodies as proper responses to requests.
			Cache.add(url, data);
			const callbacks = loading[url];
			delete loading[url];

			for (let i = 0, il = callbacks.length; i < il; i++) {
				const callback = callbacks[i];
				if (callback.onLoad) callback.onLoad(data);
			}
		}).catch(err => {
			// Abort errors and other errors are handled the same
			const callbacks = loading[url];

			if (callbacks === undefined) {
				// When onLoad was called and url was deleted in `loading`
				this.manager.itemError(url);
				throw err;
			}

			delete loading[url];

			for (let i = 0, il = callbacks.length; i < il; i++) {
				const callback = callbacks[i];
				if (callback.onError) callback.onError(err);
			}

			this.manager.itemError(url);
		}).finally(() => {
			this.manager.itemEnd(url);
		});
		this.manager.itemStart(url);
	}

	setResponseType(value) {
		this.responseType = value;
		return this;
	}

	setMimeType(value) {
		this.mimeType = value;
		return this;
	}

}

class AnimationLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(url, onLoad, onProgress, onError) {
		const scope = this;
		const loader = new FileLoader(this.manager);
		loader.setPath(this.path);
		loader.setRequestHeader(this.requestHeader);
		loader.setWithCredentials(this.withCredentials);
		loader.load(url, function (text) {
			try {
				onLoad(scope.parse(JSON.parse(text)));
			} catch (e) {
				if (onError) {
					onError(e);
				} else {
					console.error(e);
				}

				scope.manager.itemError(url);
			}
		}, onProgress, onError);
	}

	parse(json) {
		const animations = [];

		for (let i = 0; i < json.length; i++) {
			const clip = AnimationClip.parse(json[i]);
			animations.push(clip);
		}

		return animations;
	}

}

/**
 * Abstract Base class to block based textures loader (dds, pvr, ...)
 *
 * Sub classes have to implement the parse() method which will be used in load().
 */

class CompressedTextureLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(url, onLoad, onProgress, onError) {
		const scope = this;
		const images = [];
		const texture = new CompressedTexture();
		const loader = new FileLoader(this.manager);
		loader.setPath(this.path);
		loader.setResponseType('arraybuffer');
		loader.setRequestHeader(this.requestHeader);
		loader.setWithCredentials(scope.withCredentials);
		let loaded = 0;

		function loadTexture(i) {
			loader.load(url[i], function (buffer) {
				const texDatas = scope.parse(buffer, true);
				images[i] = {
					width: texDatas.width,
					height: texDatas.height,
					format: texDatas.format,
					mipmaps: texDatas.mipmaps
				};
				loaded += 1;

				if (loaded === 6) {
					if (texDatas.mipmapCount === 1) texture.minFilter = LinearFilter;
					texture.image = images;
					texture.format = texDatas.format;
					texture.needsUpdate = true;
					if (onLoad) onLoad(texture);
				}
			}, onProgress, onError);
		}

		if (Array.isArray(url)) {
			for (let i = 0, il = url.length; i < il; ++i) {
				loadTexture(i);
			}
		} else {
			// compressed cubemap texture stored in a single DDS file
			loader.load(url, function (buffer) {
				const texDatas = scope.parse(buffer, true);

				if (texDatas.isCubemap) {
					const faces = texDatas.mipmaps.length / texDatas.mipmapCount;

					for (let f = 0; f < faces; f++) {
						images[f] = {
							mipmaps: []
						};

						for (let i = 0; i < texDatas.mipmapCount; i++) {
							images[f].mipmaps.push(texDatas.mipmaps[f * texDatas.mipmapCount + i]);
							images[f].format = texDatas.format;
							images[f].width = texDatas.width;
							images[f].height = texDatas.height;
						}
					}

					texture.image = images;
				} else {
					texture.image.width = texDatas.width;
					texture.image.height = texDatas.height;
					texture.mipmaps = texDatas.mipmaps;
				}

				if (texDatas.mipmapCount === 1) {
					texture.minFilter = LinearFilter;
				}

				texture.format = texDatas.format;
				texture.needsUpdate = true;
				if (onLoad) onLoad(texture);
			}, onProgress, onError);
		}

		return texture;
	}

}

class ImageLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(url, onLoad, onProgress, onError) {
		if (this.path !== undefined) url = this.path + url;
		url = this.manager.resolveURL(url);
		const scope = this;
		const cached = Cache.get(url);

		if (cached !== undefined) {
			scope.manager.itemStart(url);
			setTimeout(function () {
				if (onLoad) onLoad(cached);
				scope.manager.itemEnd(url);
			}, 0);
			return cached;
		}

		const image = createElementNS('img');

		function onImageLoad() {
			removeEventListeners();
			Cache.add(url, this);
			if (onLoad) onLoad(this);
			scope.manager.itemEnd(url);
		}

		function onImageError(event) {
			removeEventListeners();
			if (onError) onError(event);
			scope.manager.itemError(url);
			scope.manager.itemEnd(url);
		}

		function removeEventListeners() {
			image.removeEventListener('load', onImageLoad, false);
			image.removeEventListener('error', onImageError, false);
		}

		image.addEventListener('load', onImageLoad, false);
		image.addEventListener('error', onImageError, false);

		if (url.substr(0, 5) !== 'data:') {
			if (this.crossOrigin !== undefined) image.crossOrigin = this.crossOrigin;
		}

		scope.manager.itemStart(url);
		image.src = url;
		return image;
	}

}

class CubeTextureLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(urls, onLoad, onProgress, onError) {
		const texture = new CubeTexture();
		const loader = new ImageLoader(this.manager);
		loader.setCrossOrigin(this.crossOrigin);
		loader.setPath(this.path);
		let loaded = 0;

		function loadTexture(i) {
			loader.load(urls[i], function (image) {
				texture.images[i] = image;
				loaded++;

				if (loaded === 6) {
					texture.needsUpdate = true;
					if (onLoad) onLoad(texture);
				}
			}, undefined, onError);
		}

		for (let i = 0; i < urls.length; ++i) {
			loadTexture(i);
		}

		return texture;
	}

}

/**
 * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
 *
 * Sub classes have to implement the parse() method which will be used in load().
 */

class DataTextureLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(url, onLoad, onProgress, onError) {
		const scope = this;
		const texture = new DataTexture();
		const loader = new FileLoader(this.manager);
		loader.setResponseType('arraybuffer');
		loader.setRequestHeader(this.requestHeader);
		loader.setPath(this.path);
		loader.setWithCredentials(scope.withCredentials);
		loader.load(url, function (buffer) {
			const texData = scope.parse(buffer);
			if (!texData) return;

			if (texData.image !== undefined) {
				texture.image = texData.image;
			} else if (texData.data !== undefined) {
				texture.image.width = texData.width;
				texture.image.height = texData.height;
				texture.image.data = texData.data;
			}

			texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping;
			texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping;
			texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter;
			texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearFilter;
			texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1;

			if (texData.encoding !== undefined) {
				texture.encoding = texData.encoding;
			}

			if (texData.flipY !== undefined) {
				texture.flipY = texData.flipY;
			}

			if (texData.format !== undefined) {
				texture.format = texData.format;
			}

			if (texData.type !== undefined) {
				texture.type = texData.type;
			}

			if (texData.mipmaps !== undefined) {
				texture.mipmaps = texData.mipmaps;
				texture.minFilter = LinearMipmapLinearFilter; // presumably...
			}

			if (texData.mipmapCount === 1) {
				texture.minFilter = LinearFilter;
			}

			if (texData.generateMipmaps !== undefined) {
				texture.generateMipmaps = texData.generateMipmaps;
			}

			texture.needsUpdate = true;
			if (onLoad) onLoad(texture, texData);
		}, onProgress, onError);
		return texture;
	}

}

class TextureLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(url, onLoad, onProgress, onError) {
		const texture = new Texture();
		const loader = new ImageLoader(this.manager);
		loader.setCrossOrigin(this.crossOrigin);
		loader.setPath(this.path);
		loader.load(url, function (image) {
			texture.image = image;
			texture.needsUpdate = true;

			if (onLoad !== undefined) {
				onLoad(texture);
			}
		}, onProgress, onError);
		return texture;
	}

}

class Light extends Object3D {
	constructor(color, intensity = 1) {
		super();
		this.type = 'Light';
		this.color = new Color(color);
		this.intensity = intensity;
	}

	dispose() {// Empty here in base class; some subclasses override.
	}

	copy(source) {
		super.copy(source);
		this.color.copy(source.color);
		this.intensity = source.intensity;
		return this;
	}

	toJSON(meta) {
		const data = super.toJSON(meta);
		data.object.color = this.color.getHex();
		data.object.intensity = this.intensity;
		if (this.groundColor !== undefined) data.object.groundColor = this.groundColor.getHex();
		if (this.distance !== undefined) data.object.distance = this.distance;
		if (this.angle !== undefined) data.object.angle = this.angle;
		if (this.decay !== undefined) data.object.decay = this.decay;
		if (this.penumbra !== undefined) data.object.penumbra = this.penumbra;
		if (this.shadow !== undefined) data.object.shadow = this.shadow.toJSON();
		return data;
	}

}

Light.prototype.isLight = true;

class HemisphereLight extends Light {
	constructor(skyColor, groundColor, intensity) {
		super(skyColor, intensity);
		this.type = 'HemisphereLight';
		this.position.copy(Object3D.DefaultUp);
		this.updateMatrix();
		this.groundColor = new Color(groundColor);
	}

	copy(source) {
		Light.prototype.copy.call(this, source);
		this.groundColor.copy(source.groundColor);
		return this;
	}

}

HemisphereLight.prototype.isHemisphereLight = true;

const _projScreenMatrix$1 = /*@__PURE__*/new Matrix4();

const _lightPositionWorld$1 = /*@__PURE__*/new Vector3();

const _lookTarget$1 = /*@__PURE__*/new Vector3();

class LightShadow {
	constructor(camera) {
		this.camera = camera;
		this.bias = 0;
		this.normalBias = 0;
		this.radius = 1;
		this.blurSamples = 8;
		this.mapSize = new Vector2(512, 512);
		this.map = null;
		this.mapPass = null;
		this.matrix = new Matrix4();
		this.autoUpdate = true;
		this.needsUpdate = false;
		this._frustum = new Frustum();
		this._frameExtents = new Vector2(1, 1);
		this._viewportCount = 1;
		this._viewports = [new Vector4(0, 0, 1, 1)];
	}

	getViewportCount() {
		return this._viewportCount;
	}

	getFrustum() {
		return this._frustum;
	}

	updateMatrices(light) {
		const shadowCamera = this.camera;
		const shadowMatrix = this.matrix;

		_lightPositionWorld$1.setFromMatrixPosition(light.matrixWorld);

		shadowCamera.position.copy(_lightPositionWorld$1);

		_lookTarget$1.setFromMatrixPosition(light.target.matrixWorld);

		shadowCamera.lookAt(_lookTarget$1);
		shadowCamera.updateMatrixWorld();

		_projScreenMatrix$1.multiplyMatrices(shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse);

		this._frustum.setFromProjectionMatrix(_projScreenMatrix$1);

		shadowMatrix.set(0.5, 0.0, 0.0, 0.5, 0.0, 0.5, 0.0, 0.5, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 1.0);
		shadowMatrix.multiply(shadowCamera.projectionMatrix);
		shadowMatrix.multiply(shadowCamera.matrixWorldInverse);
	}

	getViewport(viewportIndex) {
		return this._viewports[viewportIndex];
	}

	getFrameExtents() {
		return this._frameExtents;
	}

	dispose() {
		if (this.map) {
			this.map.dispose();
		}

		if (this.mapPass) {
			this.mapPass.dispose();
		}
	}

	copy(source) {
		this.camera = source.camera.clone();
		this.bias = source.bias;
		this.radius = source.radius;
		this.mapSize.copy(source.mapSize);
		return this;
	}

	clone() {
		return new this.constructor().copy(this);
	}

	toJSON() {
		const object = {};
		if (this.bias !== 0) object.bias = this.bias;
		if (this.normalBias !== 0) object.normalBias = this.normalBias;
		if (this.radius !== 1) object.radius = this.radius;
		if (this.mapSize.x !== 512 || this.mapSize.y !== 512) object.mapSize = this.mapSize.toArray();
		object.camera = this.camera.toJSON(false).object;
		delete object.camera.matrix;
		return object;
	}

}

class SpotLightShadow extends LightShadow {
	constructor() {
		super(new PerspectiveCamera(50, 1, 0.5, 500));
		this.focus = 1;
	}

	updateMatrices(light) {
		const camera = this.camera;
		const fov = RAD2DEG * 2 * light.angle * this.focus;
		const aspect = this.mapSize.width / this.mapSize.height;
		const far = light.distance || camera.far;

		if (fov !== camera.fov || aspect !== camera.aspect || far !== camera.far) {
			camera.fov = fov;
			camera.aspect = aspect;
			camera.far = far;
			camera.updateProjectionMatrix();
		}

		super.updateMatrices(light);
	}

	copy(source) {
		super.copy(source);
		this.focus = source.focus;
		return this;
	}

}

SpotLightShadow.prototype.isSpotLightShadow = true;

class SpotLight extends Light {
	constructor(color, intensity, distance = 0, angle = Math.PI / 3, penumbra = 0, decay = 1) {
		super(color, intensity);
		this.type = 'SpotLight';
		this.position.copy(Object3D.DefaultUp);
		this.updateMatrix();
		this.target = new Object3D();
		this.distance = distance;
		this.angle = angle;
		this.penumbra = penumbra;
		this.decay = decay; // for physically correct lights, should be 2.

		this.shadow = new SpotLightShadow();
	}

	get power() {
		// compute the light's luminous power (in lumens) from its intensity (in candela)
		// by convention for a spotlight, luminous power (lm) = π * luminous intensity (cd)
		return this.intensity * Math.PI;
	}

	set power(power) {
		// set the light's intensity (in candela) from the desired luminous power (in lumens)
		this.intensity = power / Math.PI;
	}

	dispose() {
		this.shadow.dispose();
	}

	copy(source) {
		super.copy(source);
		this.distance = source.distance;
		this.angle = source.angle;
		this.penumbra = source.penumbra;
		this.decay = source.decay;
		this.target = source.target.clone();
		this.shadow = source.shadow.clone();
		return this;
	}

}

SpotLight.prototype.isSpotLight = true;

const _projScreenMatrix = /*@__PURE__*/new Matrix4();

const _lightPositionWorld = /*@__PURE__*/new Vector3();

const _lookTarget = /*@__PURE__*/new Vector3();

class PointLightShadow extends LightShadow {
	constructor() {
		super(new PerspectiveCamera(90, 1, 0.5, 500));
		this._frameExtents = new Vector2(4, 2);
		this._viewportCount = 6;
		this._viewports = [// These viewports map a cube-map onto a 2D texture with the
		// following orientation:
		//
		//	xzXZ
		//	 y Y
		//
		// X - Positive x direction
		// x - Negative x direction
		// Y - Positive y direction
		// y - Negative y direction
		// Z - Positive z direction
		// z - Negative z direction
		// positive X
		new Vector4(2, 1, 1, 1), // negative X
		new Vector4(0, 1, 1, 1), // positive Z
		new Vector4(3, 1, 1, 1), // negative Z
		new Vector4(1, 1, 1, 1), // positive Y
		new Vector4(3, 0, 1, 1), // negative Y
		new Vector4(1, 0, 1, 1)];
		this._cubeDirections = [new Vector3(1, 0, 0), new Vector3(-1, 0, 0), new Vector3(0, 0, 1), new Vector3(0, 0, -1), new Vector3(0, 1, 0), new Vector3(0, -1, 0)];
		this._cubeUps = [new Vector3(0, 1, 0), new Vector3(0, 1, 0), new Vector3(0, 1, 0), new Vector3(0, 1, 0), new Vector3(0, 0, 1), new Vector3(0, 0, -1)];
	}

	updateMatrices(light, viewportIndex = 0) {
		const camera = this.camera;
		const shadowMatrix = this.matrix;
		const far = light.distance || camera.far;

		if (far !== camera.far) {
			camera.far = far;
			camera.updateProjectionMatrix();
		}

		_lightPositionWorld.setFromMatrixPosition(light.matrixWorld);

		camera.position.copy(_lightPositionWorld);

		_lookTarget.copy(camera.position);

		_lookTarget.add(this._cubeDirections[viewportIndex]);

		camera.up.copy(this._cubeUps[viewportIndex]);
		camera.lookAt(_lookTarget);
		camera.updateMatrixWorld();
		shadowMatrix.makeTranslation(-_lightPositionWorld.x, -_lightPositionWorld.y, -_lightPositionWorld.z);

		_projScreenMatrix.multiplyMatrices(camera.projectionMatrix, camera.matrixWorldInverse);

		this._frustum.setFromProjectionMatrix(_projScreenMatrix);
	}

}

PointLightShadow.prototype.isPointLightShadow = true;

class PointLight extends Light {
	constructor(color, intensity, distance = 0, decay = 1) {
		super(color, intensity);
		this.type = 'PointLight';
		this.distance = distance;
		this.decay = decay; // for physically correct lights, should be 2.

		this.shadow = new PointLightShadow();
	}

	get power() {
		// compute the light's luminous power (in lumens) from its intensity (in candela)
		// for an isotropic light source, luminous power (lm) = 4 π luminous intensity (cd)
		return this.intensity * 4 * Math.PI;
	}

	set power(power) {
		// set the light's intensity (in candela) from the desired luminous power (in lumens)
		this.intensity = power / (4 * Math.PI);
	}

	dispose() {
		this.shadow.dispose();
	}

	copy(source) {
		super.copy(source);
		this.distance = source.distance;
		this.decay = source.decay;
		this.shadow = source.shadow.clone();
		return this;
	}

}

PointLight.prototype.isPointLight = true;

class DirectionalLightShadow extends LightShadow {
	constructor() {
		super(new OrthographicCamera(-5, 5, 5, -5, 0.5, 500));
	}

}

DirectionalLightShadow.prototype.isDirectionalLightShadow = true;

class DirectionalLight extends Light {
	constructor(color, intensity) {
		super(color, intensity);
		this.type = 'DirectionalLight';
		this.position.copy(Object3D.DefaultUp);
		this.updateMatrix();
		this.target = new Object3D();
		this.shadow = new DirectionalLightShadow();
	}

	dispose() {
		this.shadow.dispose();
	}

	copy(source) {
		super.copy(source);
		this.target = source.target.clone();
		this.shadow = source.shadow.clone();
		return this;
	}

}

DirectionalLight.prototype.isDirectionalLight = true;

class AmbientLight extends Light {
	constructor(color, intensity) {
		super(color, intensity);
		this.type = 'AmbientLight';
	}

}

AmbientLight.prototype.isAmbientLight = true;

class RectAreaLight extends Light {
	constructor(color, intensity, width = 10, height = 10) {
		super(color, intensity);
		this.type = 'RectAreaLight';
		this.width = width;
		this.height = height;
	}

	get power() {
		// compute the light's luminous power (in lumens) from its intensity (in nits)
		return this.intensity * this.width * this.height * Math.PI;
	}

	set power(power) {
		// set the light's intensity (in nits) from the desired luminous power (in lumens)
		this.intensity = power / (this.width * this.height * Math.PI);
	}

	copy(source) {
		super.copy(source);
		this.width = source.width;
		this.height = source.height;
		return this;
	}

	toJSON(meta) {
		const data = super.toJSON(meta);
		data.object.width = this.width;
		data.object.height = this.height;
		return data;
	}

}

RectAreaLight.prototype.isRectAreaLight = true;

/**
 * Primary reference:
 *	 https://graphics.stanford.edu/papers/envmap/envmap.pdf
 *
 * Secondary reference:
 *	 https://www.ppsloan.org/publications/StupidSH36.pdf
 */
// 3-band SH defined by 9 coefficients

class SphericalHarmonics3 {
	constructor() {
		this.coefficients = [];

		for (let i = 0; i < 9; i++) {
			this.coefficients.push(new Vector3());
		}
	}

	set(coefficients) {
		for (let i = 0; i < 9; i++) {
			this.coefficients[i].copy(coefficients[i]);
		}

		return this;
	}

	zero() {
		for (let i = 0; i < 9; i++) {
			this.coefficients[i].set(0, 0, 0);
		}

		return this;
	} // get the radiance in the direction of the normal
	// target is a Vector3


	getAt(normal, target) {
		// normal is assumed to be unit length
		const x = normal.x,
					y = normal.y,
					z = normal.z;
		const coeff = this.coefficients; // band 0

		target.copy(coeff[0]).multiplyScalar(0.282095); // band 1

		target.addScaledVector(coeff[1], 0.488603 * y);
		target.addScaledVector(coeff[2], 0.488603 * z);
		target.addScaledVector(coeff[3], 0.488603 * x); // band 2

		target.addScaledVector(coeff[4], 1.092548 * (x * y));
		target.addScaledVector(coeff[5], 1.092548 * (y * z));
		target.addScaledVector(coeff[6], 0.315392 * (3.0 * z * z - 1.0));
		target.addScaledVector(coeff[7], 1.092548 * (x * z));
		target.addScaledVector(coeff[8], 0.546274 * (x * x - y * y));
		return target;
	} // get the irradiance (radiance convolved with cosine lobe) in the direction of the normal
	// target is a Vector3
	// https://graphics.stanford.edu/papers/envmap/envmap.pdf


	getIrradianceAt(normal, target) {
		// normal is assumed to be unit length
		const x = normal.x,
					y = normal.y,
					z = normal.z;
		const coeff = this.coefficients; // band 0

		target.copy(coeff[0]).multiplyScalar(0.886227); // π * 0.282095
		// band 1

		target.addScaledVector(coeff[1], 2.0 * 0.511664 * y); // ( 2 * π / 3 ) * 0.488603

		target.addScaledVector(coeff[2], 2.0 * 0.511664 * z);
		target.addScaledVector(coeff[3], 2.0 * 0.511664 * x); // band 2

		target.addScaledVector(coeff[4], 2.0 * 0.429043 * x * y); // ( π / 4 ) * 1.092548

		target.addScaledVector(coeff[5], 2.0 * 0.429043 * y * z);
		target.addScaledVector(coeff[6], 0.743125 * z * z - 0.247708); // ( π / 4 ) * 0.315392 * 3

		target.addScaledVector(coeff[7], 2.0 * 0.429043 * x * z);
		target.addScaledVector(coeff[8], 0.429043 * (x * x - y * y)); // ( π / 4 ) * 0.546274

		return target;
	}

	add(sh) {
		for (let i = 0; i < 9; i++) {
			this.coefficients[i].add(sh.coefficients[i]);
		}

		return this;
	}

	addScaledSH(sh, s) {
		for (let i = 0; i < 9; i++) {
			this.coefficients[i].addScaledVector(sh.coefficients[i], s);
		}

		return this;
	}

	scale(s) {
		for (let i = 0; i < 9; i++) {
			this.coefficients[i].multiplyScalar(s);
		}

		return this;
	}

	lerp(sh, alpha) {
		for (let i = 0; i < 9; i++) {
			this.coefficients[i].lerp(sh.coefficients[i], alpha);
		}

		return this;
	}

	equals(sh) {
		for (let i = 0; i < 9; i++) {
			if (!this.coefficients[i].equals(sh.coefficients[i])) {
				return false;
			}
		}

		return true;
	}

	copy(sh) {
		return this.set(sh.coefficients);
	}

	clone() {
		return new this.constructor().copy(this);
	}

	fromArray(array, offset = 0) {
		const coefficients = this.coefficients;

		for (let i = 0; i < 9; i++) {
			coefficients[i].fromArray(array, offset + i * 3);
		}

		return this;
	}

	toArray(array = [], offset = 0) {
		const coefficients = this.coefficients;

		for (let i = 0; i < 9; i++) {
			coefficients[i].toArray(array, offset + i * 3);
		}

		return array;
	} // evaluate the basis functions
	// shBasis is an Array[ 9 ]


	static getBasisAt(normal, shBasis) {
		// normal is assumed to be unit length
		const x = normal.x,
					y = normal.y,
					z = normal.z; // band 0

		shBasis[0] = 0.282095; // band 1

		shBasis[1] = 0.488603 * y;
		shBasis[2] = 0.488603 * z;
		shBasis[3] = 0.488603 * x; // band 2

		shBasis[4] = 1.092548 * x * y;
		shBasis[5] = 1.092548 * y * z;
		shBasis[6] = 0.315392 * (3 * z * z - 1);
		shBasis[7] = 1.092548 * x * z;
		shBasis[8] = 0.546274 * (x * x - y * y);
	}

}

SphericalHarmonics3.prototype.isSphericalHarmonics3 = true;

class LightProbe extends Light {
	constructor(sh = new SphericalHarmonics3(), intensity = 1) {
		super(undefined, intensity);
		this.sh = sh;
	}

	copy(source) {
		super.copy(source);
		this.sh.copy(source.sh);
		return this;
	}

	fromJSON(json) {
		this.intensity = json.intensity; // TODO: Move this bit to Light.fromJSON();

		this.sh.fromArray(json.sh);
		return this;
	}

	toJSON(meta) {
		const data = super.toJSON(meta);
		data.object.sh = this.sh.toArray();
		return data;
	}

}

LightProbe.prototype.isLightProbe = true;

class MaterialLoader extends Loader {
	constructor(manager) {
		super(manager);
		this.textures = {};
	}

	load(url, onLoad, onProgress, onError) {
		const scope = this;
		const loader = new FileLoader(scope.manager);
		loader.setPath(scope.path);
		loader.setRequestHeader(scope.requestHeader);
		loader.setWithCredentials(scope.withCredentials);
		loader.load(url, function (text) {
			try {
				onLoad(scope.parse(JSON.parse(text)));
			} catch (e) {
				if (onError) {
					onError(e);
				} else {
					console.error(e);
				}

				scope.manager.itemError(url);
			}
		}, onProgress, onError);
	}

	parse(json) {
		const textures = this.textures;

		function getTexture(name) {
			if (textures[name] === undefined) {
				console.warn('THREE.MaterialLoader: Undefined texture', name);
			}

			return textures[name];
		}

		const material = new Materials[json.type]();
		if (json.uuid !== undefined) material.uuid = json.uuid;
		if (json.name !== undefined) material.name = json.name;
		if (json.color !== undefined && material.color !== undefined) material.color.setHex(json.color);
		if (json.roughness !== undefined) material.roughness = json.roughness;
		if (json.metalness !== undefined) material.metalness = json.metalness;
		if (json.sheen !== undefined) material.sheen = json.sheen;
		if (json.sheenColor !== undefined) material.sheenColor = new Color().setHex(json.sheenColor);
		if (json.sheenRoughness !== undefined) material.sheenRoughness = json.sheenRoughness;
		if (json.emissive !== undefined && material.emissive !== undefined) material.emissive.setHex(json.emissive);
		if (json.specular !== undefined && material.specular !== undefined) material.specular.setHex(json.specular);
		if (json.specularIntensity !== undefined) material.specularIntensity = json.specularIntensity;
		if (json.specularColor !== undefined && material.specularColor !== undefined) material.specularColor.setHex(json.specularColor);
		if (json.shininess !== undefined) material.shininess = json.shininess;
		if (json.clearcoat !== undefined) material.clearcoat = json.clearcoat;
		if (json.clearcoatRoughness !== undefined) material.clearcoatRoughness = json.clearcoatRoughness;
		if (json.transmission !== undefined) material.transmission = json.transmission;
		if (json.thickness !== undefined) material.thickness = json.thickness;
		if (json.attenuationDistance !== undefined) material.attenuationDistance = json.attenuationDistance;
		if (json.attenuationColor !== undefined && material.attenuationColor !== undefined) material.attenuationColor.setHex(json.attenuationColor);
		if (json.fog !== undefined) material.fog = json.fog;
		if (json.flatShading !== undefined) material.flatShading = json.flatShading;
		if (json.blending !== undefined) material.blending = json.blending;
		if (json.combine !== undefined) material.combine = json.combine;
		if (json.side !== undefined) material.side = json.side;
		if (json.shadowSide !== undefined) material.shadowSide = json.shadowSide;
		if (json.opacity !== undefined) material.opacity = json.opacity;
		if (json.transparent !== undefined) material.transparent = json.transparent;
		if (json.alphaTest !== undefined) material.alphaTest = json.alphaTest;
		if (json.depthTest !== undefined) material.depthTest = json.depthTest;
		if (json.depthWrite !== undefined) material.depthWrite = json.depthWrite;
		if (json.colorWrite !== undefined) material.colorWrite = json.colorWrite;
		if (json.stencilWrite !== undefined) material.stencilWrite = json.stencilWrite;
		if (json.stencilWriteMask !== undefined) material.stencilWriteMask = json.stencilWriteMask;
		if (json.stencilFunc !== undefined) material.stencilFunc = json.stencilFunc;
		if (json.stencilRef !== undefined) material.stencilRef = json.stencilRef;
		if (json.stencilFuncMask !== undefined) material.stencilFuncMask = json.stencilFuncMask;
		if (json.stencilFail !== undefined) material.stencilFail = json.stencilFail;
		if (json.stencilZFail !== undefined) material.stencilZFail = json.stencilZFail;
		if (json.stencilZPass !== undefined) material.stencilZPass = json.stencilZPass;
		if (json.wireframe !== undefined) material.wireframe = json.wireframe;
		if (json.wireframeLinewidth !== undefined) material.wireframeLinewidth = json.wireframeLinewidth;
		if (json.wireframeLinecap !== undefined) material.wireframeLinecap = json.wireframeLinecap;
		if (json.wireframeLinejoin !== undefined) material.wireframeLinejoin = json.wireframeLinejoin;
		if (json.rotation !== undefined) material.rotation = json.rotation;
		if (json.linewidth !== 1) material.linewidth = json.linewidth;
		if (json.dashSize !== undefined) material.dashSize = json.dashSize;
		if (json.gapSize !== undefined) material.gapSize = json.gapSize;
		if (json.scale !== undefined) material.scale = json.scale;
		if (json.polygonOffset !== undefined) material.polygonOffset = json.polygonOffset;
		if (json.polygonOffsetFactor !== undefined) material.polygonOffsetFactor = json.polygonOffsetFactor;
		if (json.polygonOffsetUnits !== undefined) material.polygonOffsetUnits = json.polygonOffsetUnits;
		if (json.dithering !== undefined) material.dithering = json.dithering;
		if (json.alphaToCoverage !== undefined) material.alphaToCoverage = json.alphaToCoverage;
		if (json.premultipliedAlpha !== undefined) material.premultipliedAlpha = json.premultipliedAlpha;
		if (json.visible !== undefined) material.visible = json.visible;
		if (json.toneMapped !== undefined) material.toneMapped = json.toneMapped;
		if (json.userData !== undefined) material.userData = json.userData;

		if (json.vertexColors !== undefined) {
			if (typeof json.vertexColors === 'number') {
				material.vertexColors = json.vertexColors > 0 ? true : false;
			} else {
				material.vertexColors = json.vertexColors;
			}
		} // Shader Material


		if (json.uniforms !== undefined) {
			for (const name in json.uniforms) {
				const uniform = json.uniforms[name];
				material.uniforms[name] = {};

				switch (uniform.type) {
					case 't':
						material.uniforms[name].value = getTexture(uniform.value);
						break;

					case 'c':
						material.uniforms[name].value = new Color().setHex(uniform.value);
						break;

					case 'v2':
						material.uniforms[name].value = new Vector2().fromArray(uniform.value);
						break;

					case 'v3':
						material.uniforms[name].value = new Vector3().fromArray(uniform.value);
						break;

					case 'v4':
						material.uniforms[name].value = new Vector4().fromArray(uniform.value);
						break;

					case 'm3':
						material.uniforms[name].value = new Matrix3().fromArray(uniform.value);
						break;

					case 'm4':
						material.uniforms[name].value = new Matrix4().fromArray(uniform.value);
						break;

					default:
						material.uniforms[name].value = uniform.value;
				}
			}
		}

		if (json.defines !== undefined) material.defines = json.defines;
		if (json.vertexShader !== undefined) material.vertexShader = json.vertexShader;
		if (json.fragmentShader !== undefined) material.fragmentShader = json.fragmentShader;

		if (json.extensions !== undefined) {
			for (const key in json.extensions) {
				material.extensions[key] = json.extensions[key];
			}
		} // Deprecated


		if (json.shading !== undefined) material.flatShading = json.shading === 1; // THREE.FlatShading
		// for PointsMaterial

		if (json.size !== undefined) material.size = json.size;
		if (json.sizeAttenuation !== undefined) material.sizeAttenuation = json.sizeAttenuation; // maps

		if (json.map !== undefined) material.map = getTexture(json.map);
		if (json.matcap !== undefined) material.matcap = getTexture(json.matcap);
		if (json.alphaMap !== undefined) material.alphaMap = getTexture(json.alphaMap);
		if (json.bumpMap !== undefined) material.bumpMap = getTexture(json.bumpMap);
		if (json.bumpScale !== undefined) material.bumpScale = json.bumpScale;
		if (json.normalMap !== undefined) material.normalMap = getTexture(json.normalMap);
		if (json.normalMapType !== undefined) material.normalMapType = json.normalMapType;

		if (json.normalScale !== undefined) {
			let normalScale = json.normalScale;

			if (Array.isArray(normalScale) === false) {
				// Blender exporter used to export a scalar. See #7459
				normalScale = [normalScale, normalScale];
			}

			material.normalScale = new Vector2().fromArray(normalScale);
		}

		if (json.displacementMap !== undefined) material.displacementMap = getTexture(json.displacementMap);
		if (json.displacementScale !== undefined) material.displacementScale = json.displacementScale;
		if (json.displacementBias !== undefined) material.displacementBias = json.displacementBias;
		if (json.roughnessMap !== undefined) material.roughnessMap = getTexture(json.roughnessMap);
		if (json.metalnessMap !== undefined) material.metalnessMap = getTexture(json.metalnessMap);
		if (json.emissiveMap !== undefined) material.emissiveMap = getTexture(json.emissiveMap);
		if (json.emissiveIntensity !== undefined) material.emissiveIntensity = json.emissiveIntensity;
		if (json.specularMap !== undefined) material.specularMap = getTexture(json.specularMap);
		if (json.specularIntensityMap !== undefined) material.specularIntensityMap = getTexture(json.specularIntensityMap);
		if (json.specularColorMap !== undefined) material.specularColorMap = getTexture(json.specularColorMap);
		if (json.envMap !== undefined) material.envMap = getTexture(json.envMap);
		if (json.envMapIntensity !== undefined) material.envMapIntensity = json.envMapIntensity;
		if (json.reflectivity !== undefined) material.reflectivity = json.reflectivity;
		if (json.refractionRatio !== undefined) material.refractionRatio = json.refractionRatio;
		if (json.lightMap !== undefined) material.lightMap = getTexture(json.lightMap);
		if (json.lightMapIntensity !== undefined) material.lightMapIntensity = json.lightMapIntensity;
		if (json.aoMap !== undefined) material.aoMap = getTexture(json.aoMap);
		if (json.aoMapIntensity !== undefined) material.aoMapIntensity = json.aoMapIntensity;
		if (json.gradientMap !== undefined) material.gradientMap = getTexture(json.gradientMap);
		if (json.clearcoatMap !== undefined) material.clearcoatMap = getTexture(json.clearcoatMap);
		if (json.clearcoatRoughnessMap !== undefined) material.clearcoatRoughnessMap = getTexture(json.clearcoatRoughnessMap);
		if (json.clearcoatNormalMap !== undefined) material.clearcoatNormalMap = getTexture(json.clearcoatNormalMap);
		if (json.clearcoatNormalScale !== undefined) material.clearcoatNormalScale = new Vector2().fromArray(json.clearcoatNormalScale);
		if (json.transmissionMap !== undefined) material.transmissionMap = getTexture(json.transmissionMap);
		if (json.thicknessMap !== undefined) material.thicknessMap = getTexture(json.thicknessMap);
		if (json.sheenColorMap !== undefined) material.sheenColorMap = getTexture(json.sheenColorMap);
		if (json.sheenRoughnessMap !== undefined) material.sheenRoughnessMap = getTexture(json.sheenRoughnessMap);
		return material;
	}

	setTextures(value) {
		this.textures = value;
		return this;
	}

}

class LoaderUtils {
	static decodeText(array) {
		if (typeof TextDecoder !== 'undefined') {
			return new TextDecoder().decode(array);
		} // Avoid the String.fromCharCode.apply(null, array) shortcut, which
		// throws a "maximum call stack size exceeded" error for large arrays.


		let s = '';

		for (let i = 0, il = array.length; i < il; i++) {
			// Implicitly assumes little-endian.
			s += String.fromCharCode(array[i]);
		}

		try {
			// merges multi-byte utf-8 characters.
			return decodeURIComponent(escape(s));
		} catch (e) {
			// see #16358
			return s;
		}
	}

	static extractUrlBase(url) {
		const index = url.lastIndexOf('/');
		if (index === -1) return './';
		return url.substr(0, index + 1);
	}

	static resolveURL(url, path) {
		// Invalid URL
		if (typeof url !== 'string' || url === '') return ''; // Host Relative URL

		if (/^https?:\/\//i.test(path) && /^\//.test(url)) {
			path = path.replace(/(^https?:\/\/[^\/]+).*/i, '$1');
		} // Absolute URL http://,https://,//


		if (/^(https?:)?\/\//i.test(url)) return url; // Data URI

		if (/^data:.*,.*$/i.test(url)) return url; // Blob URL

		if (/^blob:.*$/i.test(url)) return url; // Relative URL

		return path + url;
	}

}

class InstancedBufferGeometry extends BufferGeometry {
	constructor() {
		super();
		this.type = 'InstancedBufferGeometry';
		this.instanceCount = Infinity;
	}

	copy(source) {
		super.copy(source);
		this.instanceCount = source.instanceCount;
		return this;
	}

	clone() {
		return new this.constructor().copy(this);
	}

	toJSON() {
		const data = super.toJSON(this);
		data.instanceCount = this.instanceCount;
		data.isInstancedBufferGeometry = true;
		return data;
	}

}

InstancedBufferGeometry.prototype.isInstancedBufferGeometry = true;

class BufferGeometryLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(url, onLoad, onProgress, onError) {
		const scope = this;
		const loader = new FileLoader(scope.manager);
		loader.setPath(scope.path);
		loader.setRequestHeader(scope.requestHeader);
		loader.setWithCredentials(scope.withCredentials);
		loader.load(url, function (text) {
			try {
				onLoad(scope.parse(JSON.parse(text)));
			} catch (e) {
				if (onError) {
					onError(e);
				} else {
					console.error(e);
				}

				scope.manager.itemError(url);
			}
		}, onProgress, onError);
	}

	parse(json) {
		const interleavedBufferMap = {};
		const arrayBufferMap = {};

		function getInterleavedBuffer(json, uuid) {
			if (interleavedBufferMap[uuid] !== undefined) return interleavedBufferMap[uuid];
			const interleavedBuffers = json.interleavedBuffers;
			const interleavedBuffer = interleavedBuffers[uuid];
			const buffer = getArrayBuffer(json, interleavedBuffer.buffer);
			const array = getTypedArray(interleavedBuffer.type, buffer);
			const ib = new InterleavedBuffer(array, interleavedBuffer.stride);
			ib.uuid = interleavedBuffer.uuid;
			interleavedBufferMap[uuid] = ib;
			return ib;
		}

		function getArrayBuffer(json, uuid) {
			if (arrayBufferMap[uuid] !== undefined) return arrayBufferMap[uuid];
			const arrayBuffers = json.arrayBuffers;
			const arrayBuffer = arrayBuffers[uuid];
			const ab = new Uint32Array(arrayBuffer).buffer;
			arrayBufferMap[uuid] = ab;
			return ab;
		}

		const geometry = json.isInstancedBufferGeometry ? new InstancedBufferGeometry() : new BufferGeometry();
		const index = json.data.index;

		if (index !== undefined) {
			const typedArray = getTypedArray(index.type, index.array);
			geometry.setIndex(new BufferAttribute(typedArray, 1));
		}

		const attributes = json.data.attributes;

		for (const key in attributes) {
			const attribute = attributes[key];
			let bufferAttribute;

			if (attribute.isInterleavedBufferAttribute) {
				const interleavedBuffer = getInterleavedBuffer(json.data, attribute.data);
				bufferAttribute = new InterleavedBufferAttribute(interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized);
			} else {
				const typedArray = getTypedArray(attribute.type, attribute.array);
				const bufferAttributeConstr = attribute.isInstancedBufferAttribute ? InstancedBufferAttribute : BufferAttribute;
				bufferAttribute = new bufferAttributeConstr(typedArray, attribute.itemSize, attribute.normalized);
			}

			if (attribute.name !== undefined) bufferAttribute.name = attribute.name;
			if (attribute.usage !== undefined) bufferAttribute.setUsage(attribute.usage);

			if (attribute.updateRange !== undefined) {
				bufferAttribute.updateRange.offset = attribute.updateRange.offset;
				bufferAttribute.updateRange.count = attribute.updateRange.count;
			}

			geometry.setAttribute(key, bufferAttribute);
		}

		const morphAttributes = json.data.morphAttributes;

		if (morphAttributes) {
			for (const key in morphAttributes) {
				const attributeArray = morphAttributes[key];
				const array = [];

				for (let i = 0, il = attributeArray.length; i < il; i++) {
					const attribute = attributeArray[i];
					let bufferAttribute;

					if (attribute.isInterleavedBufferAttribute) {
						const interleavedBuffer = getInterleavedBuffer(json.data, attribute.data);
						bufferAttribute = new InterleavedBufferAttribute(interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized);
					} else {
						const typedArray = getTypedArray(attribute.type, attribute.array);
						bufferAttribute = new BufferAttribute(typedArray, attribute.itemSize, attribute.normalized);
					}

					if (attribute.name !== undefined) bufferAttribute.name = attribute.name;
					array.push(bufferAttribute);
				}

				geometry.morphAttributes[key] = array;
			}
		}

		const morphTargetsRelative = json.data.morphTargetsRelative;

		if (morphTargetsRelative) {
			geometry.morphTargetsRelative = true;
		}

		const groups = json.data.groups || json.data.drawcalls || json.data.offsets;

		if (groups !== undefined) {
			for (let i = 0, n = groups.length; i !== n; ++i) {
				const group = groups[i];
				geometry.addGroup(group.start, group.count, group.materialIndex);
			}
		}

		const boundingSphere = json.data.boundingSphere;

		if (boundingSphere !== undefined) {
			const center = new Vector3();

			if (boundingSphere.center !== undefined) {
				center.fromArray(boundingSphere.center);
			}

			geometry.boundingSphere = new Sphere(center, boundingSphere.radius);
		}

		if (json.name) geometry.name = json.name;
		if (json.userData) geometry.userData = json.userData;
		return geometry;
	}

}

class ObjectLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(url, onLoad, onProgress, onError) {
		const scope = this;
		const path = this.path === '' ? LoaderUtils.extractUrlBase(url) : this.path;
		this.resourcePath = this.resourcePath || path;
		const loader = new FileLoader(this.manager);
		loader.setPath(this.path);
		loader.setRequestHeader(this.requestHeader);
		loader.setWithCredentials(this.withCredentials);
		loader.load(url, function (text) {
			let json = null;

			try {
				json = JSON.parse(text);
			} catch (error) {
				if (onError !== undefined) onError(error);
				console.error('THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message);
				return;
			}

			const metadata = json.metadata;

			if (metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry') {
				console.error('THREE.ObjectLoader: Can\'t load ' + url);
				return;
			}

			scope.parse(json, onLoad);
		}, onProgress, onError);
	}

	async loadAsync(url, onProgress) {
		const scope = this;
		const path = this.path === '' ? LoaderUtils.extractUrlBase(url) : this.path;
		this.resourcePath = this.resourcePath || path;
		const loader = new FileLoader(this.manager);
		loader.setPath(this.path);
		loader.setRequestHeader(this.requestHeader);
		loader.setWithCredentials(this.withCredentials);
		const text = await loader.loadAsync(url, onProgress);
		const json = JSON.parse(text);
		const metadata = json.metadata;

		if (metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry') {
			throw new Error('THREE.ObjectLoader: Can\'t load ' + url);
		}

		return await scope.parseAsync(json);
	}

	parse(json, onLoad) {
		const animations = this.parseAnimations(json.animations);
		const shapes = this.parseShapes(json.shapes);
		const geometries = this.parseGeometries(json.geometries, shapes);
		const images = this.parseImages(json.images, function () {
			if (onLoad !== undefined) onLoad(object);
		});
		const textures = this.parseTextures(json.textures, images);
		const materials = this.parseMaterials(json.materials, textures);
		const object = this.parseObject(json.object, geometries, materials, textures, animations);
		const skeletons = this.parseSkeletons(json.skeletons, object);
		this.bindSkeletons(object, skeletons); //

		if (onLoad !== undefined) {
			let hasImages = false;

			for (const uuid in images) {
				if (images[uuid] instanceof HTMLImageElement) {
					hasImages = true;
					break;
				}
			}

			if (hasImages === false) onLoad(object);
		}

		return object;
	}

	async parseAsync(json) {
		const animations = this.parseAnimations(json.animations);
		const shapes = this.parseShapes(json.shapes);
		const geometries = this.parseGeometries(json.geometries, shapes);
		const images = await this.parseImagesAsync(json.images);
		const textures = this.parseTextures(json.textures, images);
		const materials = this.parseMaterials(json.materials, textures);
		const object = this.parseObject(json.object, geometries, materials, textures, animations);
		const skeletons = this.parseSkeletons(json.skeletons, object);
		this.bindSkeletons(object, skeletons);
		return object;
	}

	parseShapes(json) {
		const shapes = {};

		if (json !== undefined) {
			for (let i = 0, l = json.length; i < l; i++) {
				const shape = new Shape().fromJSON(json[i]);
				shapes[shape.uuid] = shape;
			}
		}

		return shapes;
	}

	parseSkeletons(json, object) {
		const skeletons = {};
		const bones = {}; // generate bone lookup table

		object.traverse(function (child) {
			if (child.isBone) bones[child.uuid] = child;
		}); // create skeletons

		if (json !== undefined) {
			for (let i = 0, l = json.length; i < l; i++) {
				const skeleton = new Skeleton().fromJSON(json[i], bones);
				skeletons[skeleton.uuid] = skeleton;
			}
		}

		return skeletons;
	}

	parseGeometries(json, shapes) {
		const geometries = {};

		if (json !== undefined) {
			const bufferGeometryLoader = new BufferGeometryLoader();

			for (let i = 0, l = json.length; i < l; i++) {
				let geometry;
				const data = json[i];

				switch (data.type) {
					case 'BufferGeometry':
					case 'InstancedBufferGeometry':
						geometry = bufferGeometryLoader.parse(data);
						break;

					case 'Geometry':
						console.error('THREE.ObjectLoader: The legacy Geometry type is no longer supported.');
						break;

					default:
						if (data.type in Geometries) {
							geometry = Geometries[data.type].fromJSON(data, shapes);
						} else {
							console.warn(`THREE.ObjectLoader: Unsupported geometry type "${data.type}"`);
						}

				}

				geometry.uuid = data.uuid;
				if (data.name !== undefined) geometry.name = data.name;
				if (geometry.isBufferGeometry === true && data.userData !== undefined) geometry.userData = data.userData;
				geometries[data.uuid] = geometry;
			}
		}

		return geometries;
	}

	parseMaterials(json, textures) {
		const cache = {}; // MultiMaterial

		const materials = {};

		if (json !== undefined) {
			const loader = new MaterialLoader();
			loader.setTextures(textures);

			for (let i = 0, l = json.length; i < l; i++) {
				const data = json[i];

				if (data.type === 'MultiMaterial') {
					// Deprecated
					const array = [];

					for (let j = 0; j < data.materials.length; j++) {
						const material = data.materials[j];

						if (cache[material.uuid] === undefined) {
							cache[material.uuid] = loader.parse(material);
						}

						array.push(cache[material.uuid]);
					}

					materials[data.uuid] = array;
				} else {
					if (cache[data.uuid] === undefined) {
						cache[data.uuid] = loader.parse(data);
					}

					materials[data.uuid] = cache[data.uuid];
				}
			}
		}

		return materials;
	}

	parseAnimations(json) {
		const animations = {};

		if (json !== undefined) {
			for (let i = 0; i < json.length; i++) {
				const data = json[i];
				const clip = AnimationClip.parse(data);
				animations[clip.uuid] = clip;
			}
		}

		return animations;
	}

	parseImages(json, onLoad) {
		const scope = this;
		const images = {};
		let loader;

		function loadImage(url) {
			scope.manager.itemStart(url);
			return loader.load(url, function () {
				scope.manager.itemEnd(url);
			}, undefined, function () {
				scope.manager.itemError(url);
				scope.manager.itemEnd(url);
			});
		}

		function deserializeImage(image) {
			if (typeof image === 'string') {
				const url = image;
				const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test(url) ? url : scope.resourcePath + url;
				return loadImage(path);
			} else {
				if (image.data) {
					return {
						data: getTypedArray(image.type, image.data),
						width: image.width,
						height: image.height
					};
				} else {
					return null;
				}
			}
		}

		if (json !== undefined && json.length > 0) {
			const manager = new LoadingManager(onLoad);
			loader = new ImageLoader(manager);
			loader.setCrossOrigin(this.crossOrigin);

			for (let i = 0, il = json.length; i < il; i++) {
				const image = json[i];
				const url = image.url;

				if (Array.isArray(url)) {
					// load array of images e.g CubeTexture
					images[image.uuid] = [];

					for (let j = 0, jl = url.length; j < jl; j++) {
						const currentUrl = url[j];
						const deserializedImage = deserializeImage(currentUrl);

						if (deserializedImage !== null) {
							if (deserializedImage instanceof HTMLImageElement) {
								images[image.uuid].push(deserializedImage);
							} else {
								// special case: handle array of data textures for cube textures
								images[image.uuid].push(new DataTexture(deserializedImage.data, deserializedImage.width, deserializedImage.height));
							}
						}
					}
				} else {
					// load single image
					const deserializedImage = deserializeImage(image.url);

					if (deserializedImage !== null) {
						images[image.uuid] = deserializedImage;
					}
				}
			}
		}

		return images;
	}

	async parseImagesAsync(json) {
		const scope = this;
		const images = {};
		let loader;

		async function deserializeImage(image) {
			if (typeof image === 'string') {
				const url = image;
				const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test(url) ? url : scope.resourcePath + url;
				return await loader.loadAsync(path);
			} else {
				if (image.data) {
					return {
						data: getTypedArray(image.type, image.data),
						width: image.width,
						height: image.height
					};
				} else {
					return null;
				}
			}
		}

		if (json !== undefined && json.length > 0) {
			loader = new ImageLoader(this.manager);
			loader.setCrossOrigin(this.crossOrigin);

			for (let i = 0, il = json.length; i < il; i++) {
				const image = json[i];
				const url = image.url;

				if (Array.isArray(url)) {
					// load array of images e.g CubeTexture
					images[image.uuid] = [];

					for (let j = 0, jl = url.length; j < jl; j++) {
						const currentUrl = url[j];
						const deserializedImage = await deserializeImage(currentUrl);

						if (deserializedImage !== null) {
							if (deserializedImage instanceof HTMLImageElement) {
								images[image.uuid].push(deserializedImage);
							} else {
								// special case: handle array of data textures for cube textures
								images[image.uuid].push(new DataTexture(deserializedImage.data, deserializedImage.width, deserializedImage.height));
							}
						}
					}
				} else {
					// load single image
					const deserializedImage = await deserializeImage(image.url);

					if (deserializedImage !== null) {
						images[image.uuid] = deserializedImage;
					}
				}
			}
		}

		return images;
	}

	parseTextures(json, images) {
		function parseConstant(value, type) {
			if (typeof value === 'number') return value;
			console.warn('THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value);
			return type[value];
		}

		const textures = {};

		if (json !== undefined) {
			for (let i = 0, l = json.length; i < l; i++) {
				const data = json[i];

				if (data.image === undefined) {
					console.warn('THREE.ObjectLoader: No "image" specified for', data.uuid);
				}

				if (images[data.image] === undefined) {
					console.warn('THREE.ObjectLoader: Undefined image', data.image);
				}

				let texture;
				const image = images[data.image];

				if (Array.isArray(image)) {
					texture = new CubeTexture(image);
					if (image.length === 6) texture.needsUpdate = true;
				} else {
					if (image && image.data) {
						texture = new DataTexture(image.data, image.width, image.height);
					} else {
						texture = new Texture(image);
					}

					if (image) texture.needsUpdate = true; // textures can have undefined image data
				}

				texture.uuid = data.uuid;
				if (data.name !== undefined) texture.name = data.name;
				if (data.mapping !== undefined) texture.mapping = parseConstant(data.mapping, TEXTURE_MAPPING);
				if (data.offset !== undefined) texture.offset.fromArray(data.offset);
				if (data.repeat !== undefined) texture.repeat.fromArray(data.repeat);
				if (data.center !== undefined) texture.center.fromArray(data.center);
				if (data.rotation !== undefined) texture.rotation = data.rotation;

				if (data.wrap !== undefined) {
					texture.wrapS = parseConstant(data.wrap[0], TEXTURE_WRAPPING);
					texture.wrapT = parseConstant(data.wrap[1], TEXTURE_WRAPPING);
				}

				if (data.format !== undefined) texture.format = data.format;
				if (data.type !== undefined) texture.type = data.type;
				if (data.encoding !== undefined) texture.encoding = data.encoding;
				if (data.minFilter !== undefined) texture.minFilter = parseConstant(data.minFilter, TEXTURE_FILTER);
				if (data.magFilter !== undefined) texture.magFilter = parseConstant(data.magFilter, TEXTURE_FILTER);
				if (data.anisotropy !== undefined) texture.anisotropy = data.anisotropy;
				if (data.flipY !== undefined) texture.flipY = data.flipY;
				if (data.premultiplyAlpha !== undefined) texture.premultiplyAlpha = data.premultiplyAlpha;
				if (data.unpackAlignment !== undefined) texture.unpackAlignment = data.unpackAlignment;
				if (data.userData !== undefined) texture.userData = data.userData;
				textures[data.uuid] = texture;
			}
		}

		return textures;
	}

	parseObject(data, geometries, materials, textures, animations) {
		let object;

		function getGeometry(name) {
			if (geometries[name] === undefined) {
				console.warn('THREE.ObjectLoader: Undefined geometry', name);
			}

			return geometries[name];
		}

		function getMaterial(name) {
			if (name === undefined) return undefined;

			if (Array.isArray(name)) {
				const array = [];

				for (let i = 0, l = name.length; i < l; i++) {
					const uuid = name[i];

					if (materials[uuid] === undefined) {
						console.warn('THREE.ObjectLoader: Undefined material', uuid);
					}

					array.push(materials[uuid]);
				}

				return array;
			}

			if (materials[name] === undefined) {
				console.warn('THREE.ObjectLoader: Undefined material', name);
			}

			return materials[name];
		}

		function getTexture(uuid) {
			if (textures[uuid] === undefined) {
				console.warn('THREE.ObjectLoader: Undefined texture', uuid);
			}

			return textures[uuid];
		}

		let geometry, material;

		switch (data.type) {
			case 'Scene':
				object = new Scene();

				if (data.background !== undefined) {
					if (Number.isInteger(data.background)) {
						object.background = new Color(data.background);
					} else {
						object.background = getTexture(data.background);
					}
				}

				if (data.environment !== undefined) {
					object.environment = getTexture(data.environment);
				}

				if (data.fog !== undefined) {
					if (data.fog.type === 'Fog') {
						object.fog = new Fog(data.fog.color, data.fog.near, data.fog.far);
					} else if (data.fog.type === 'FogExp2') {
						object.fog = new FogExp2(data.fog.color, data.fog.density);
					}
				}

				break;

			case 'PerspectiveCamera':
				object = new PerspectiveCamera(data.fov, data.aspect, data.near, data.far);
				if (data.focus !== undefined) object.focus = data.focus;
				if (data.zoom !== undefined) object.zoom = data.zoom;
				if (data.filmGauge !== undefined) object.filmGauge = data.filmGauge;
				if (data.filmOffset !== undefined) object.filmOffset = data.filmOffset;
				if (data.view !== undefined) object.view = Object.assign({}, data.view);
				break;

			case 'OrthographicCamera':
				object = new OrthographicCamera(data.left, data.right, data.top, data.bottom, data.near, data.far);
				if (data.zoom !== undefined) object.zoom = data.zoom;
				if (data.view !== undefined) object.view = Object.assign({}, data.view);
				break;

			case 'AmbientLight':
				object = new AmbientLight(data.color, data.intensity);
				break;

			case 'DirectionalLight':
				object = new DirectionalLight(data.color, data.intensity);
				break;

			case 'PointLight':
				object = new PointLight(data.color, data.intensity, data.distance, data.decay);
				break;

			case 'RectAreaLight':
				object = new RectAreaLight(data.color, data.intensity, data.width, data.height);
				break;

			case 'SpotLight':
				object = new SpotLight(data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay);
				break;

			case 'HemisphereLight':
				object = new HemisphereLight(data.color, data.groundColor, data.intensity);
				break;

			case 'LightProbe':
				object = new LightProbe().fromJSON(data);
				break;

			case 'SkinnedMesh':
				geometry = getGeometry(data.geometry);
				material = getMaterial(data.material);
				object = new SkinnedMesh(geometry, material);
				if (data.bindMode !== undefined) object.bindMode = data.bindMode;
				if (data.bindMatrix !== undefined) object.bindMatrix.fromArray(data.bindMatrix);
				if (data.skeleton !== undefined) object.skeleton = data.skeleton;
				break;

			case 'Mesh':
				geometry = getGeometry(data.geometry);
				material = getMaterial(data.material);
				object = new Mesh(geometry, material);
				break;

			case 'InstancedMesh':
				geometry = getGeometry(data.geometry);
				material = getMaterial(data.material);
				const count = data.count;
				const instanceMatrix = data.instanceMatrix;
				const instanceColor = data.instanceColor;
				object = new InstancedMesh(geometry, material, count);
				object.instanceMatrix = new InstancedBufferAttribute(new Float32Array(instanceMatrix.array), 16);
				if (instanceColor !== undefined) object.instanceColor = new InstancedBufferAttribute(new Float32Array(instanceColor.array), instanceColor.itemSize);
				break;

			case 'LOD':
				object = new LOD();
				break;

			case 'Line':
				object = new Line(getGeometry(data.geometry), getMaterial(data.material));
				break;

			case 'LineLoop':
				object = new LineLoop(getGeometry(data.geometry), getMaterial(data.material));
				break;

			case 'LineSegments':
				object = new LineSegments(getGeometry(data.geometry), getMaterial(data.material));
				break;

			case 'PointCloud':
			case 'Points':
				object = new Points(getGeometry(data.geometry), getMaterial(data.material));
				break;

			case 'Sprite':
				object = new Sprite(getMaterial(data.material));
				break;

			case 'Group':
				object = new Group();
				break;

			case 'Bone':
				object = new Bone();
				break;

			default:
				object = new Object3D();
		}

		object.uuid = data.uuid;
		if (data.name !== undefined) object.name = data.name;

		if (data.matrix !== undefined) {
			object.matrix.fromArray(data.matrix);
			if (data.matrixAutoUpdate !== undefined) object.matrixAutoUpdate = data.matrixAutoUpdate;
			if (object.matrixAutoUpdate) object.matrix.decompose(object.position, object.quaternion, object.scale);
		} else {
			if (data.position !== undefined) object.position.fromArray(data.position);
			if (data.rotation !== undefined) object.rotation.fromArray(data.rotation);
			if (data.quaternion !== undefined) object.quaternion.fromArray(data.quaternion);
			if (data.scale !== undefined) object.scale.fromArray(data.scale);
		}

		if (data.castShadow !== undefined) object.castShadow = data.castShadow;
		if (data.receiveShadow !== undefined) object.receiveShadow = data.receiveShadow;

		if (data.shadow) {
			if (data.shadow.bias !== undefined) object.shadow.bias = data.shadow.bias;
			if (data.shadow.normalBias !== undefined) object.shadow.normalBias = data.shadow.normalBias;
			if (data.shadow.radius !== undefined) object.shadow.radius = data.shadow.radius;
			if (data.shadow.mapSize !== undefined) object.shadow.mapSize.fromArray(data.shadow.mapSize);
			if (data.shadow.camera !== undefined) object.shadow.camera = this.parseObject(data.shadow.camera);
		}

		if (data.visible !== undefined) object.visible = data.visible;
		if (data.frustumCulled !== undefined) object.frustumCulled = data.frustumCulled;
		if (data.renderOrder !== undefined) object.renderOrder = data.renderOrder;
		if (data.userData !== undefined) object.userData = data.userData;
		if (data.layers !== undefined) object.layers.mask = data.layers;

		if (data.children !== undefined) {
			const children = data.children;

			for (let i = 0; i < children.length; i++) {
				object.add(this.parseObject(children[i], geometries, materials, textures, animations));
			}
		}

		if (data.animations !== undefined) {
			const objectAnimations = data.animations;

			for (let i = 0; i < objectAnimations.length; i++) {
				const uuid = objectAnimations[i];
				object.animations.push(animations[uuid]);
			}
		}

		if (data.type === 'LOD') {
			if (data.autoUpdate !== undefined) object.autoUpdate = data.autoUpdate;
			const levels = data.levels;

			for (let l = 0; l < levels.length; l++) {
				const level = levels[l];
				const child = object.getObjectByProperty('uuid', level.object);

				if (child !== undefined) {
					object.addLevel(child, level.distance);
				}
			}
		}

		return object;
	}

	bindSkeletons(object, skeletons) {
		if (Object.keys(skeletons).length === 0) return;
		object.traverse(function (child) {
			if (child.isSkinnedMesh === true && child.skeleton !== undefined) {
				const skeleton = skeletons[child.skeleton];

				if (skeleton === undefined) {
					console.warn('THREE.ObjectLoader: No skeleton found with UUID:', child.skeleton);
				} else {
					child.bind(skeleton, child.bindMatrix);
				}
			}
		});
	}
	/* DEPRECATED */


	setTexturePath(value) {
		console.warn('THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath().');
		return this.setResourcePath(value);
	}

}

const TEXTURE_MAPPING = {
	UVMapping: UVMapping,
	CubeReflectionMapping: CubeReflectionMapping,
	CubeRefractionMapping: CubeRefractionMapping,
	EquirectangularReflectionMapping: EquirectangularReflectionMapping,
	EquirectangularRefractionMapping: EquirectangularRefractionMapping,
	CubeUVReflectionMapping: CubeUVReflectionMapping,
	CubeUVRefractionMapping: CubeUVRefractionMapping
};
const TEXTURE_WRAPPING = {
	RepeatWrapping: RepeatWrapping,
	ClampToEdgeWrapping: ClampToEdgeWrapping,
	MirroredRepeatWrapping: MirroredRepeatWrapping
};
const TEXTURE_FILTER = {
	NearestFilter: NearestFilter,
	NearestMipmapNearestFilter: NearestMipmapNearestFilter,
	NearestMipmapLinearFilter: NearestMipmapLinearFilter,
	LinearFilter: LinearFilter,
	LinearMipmapNearestFilter: LinearMipmapNearestFilter,
	LinearMipmapLinearFilter: LinearMipmapLinearFilter
};

class ImageBitmapLoader extends Loader {
	constructor(manager) {
		super(manager);

		if (typeof createImageBitmap === 'undefined') {
			console.warn('THREE.ImageBitmapLoader: createImageBitmap() not supported.');
		}

		if (typeof fetch === 'undefined') {
			console.warn('THREE.ImageBitmapLoader: fetch() not supported.');
		}

		this.options = {
			premultiplyAlpha: 'none'
		};
	}

	setOptions(options) {
		this.options = options;
		return this;
	}

	load(url, onLoad, onProgress, onError) {
		if (url === undefined) url = '';
		if (this.path !== undefined) url = this.path + url;
		url = this.manager.resolveURL(url);
		const scope = this;
		const cached = Cache.get(url);

		if (cached !== undefined) {
			scope.manager.itemStart(url);
			setTimeout(function () {
				if (onLoad) onLoad(cached);
				scope.manager.itemEnd(url);
			}, 0);
			return cached;
		}

		const fetchOptions = {};
		fetchOptions.credentials = this.crossOrigin === 'anonymous' ? 'same-origin' : 'include';
		fetchOptions.headers = this.requestHeader;
		fetch(url, fetchOptions).then(function (res) {
			return res.blob();
		}).then(function (blob) {
			return createImageBitmap(blob, Object.assign(scope.options, {
				colorSpaceConversion: 'none'
			}));
		}).then(function (imageBitmap) {
			Cache.add(url, imageBitmap);
			if (onLoad) onLoad(imageBitmap);
			scope.manager.itemEnd(url);
		}).catch(function (e) {
			if (onError) onError(e);
			scope.manager.itemError(url);
			scope.manager.itemEnd(url);
		});
		scope.manager.itemStart(url);
	}

}

ImageBitmapLoader.prototype.isImageBitmapLoader = true;

let _context;

const AudioContext = {
	getContext: function () {
		if (_context === undefined) {
			_context = new (window.AudioContext || window.webkitAudioContext)();
		}

		return _context;
	},
	setContext: function (value) {
		_context = value;
	}
};

class AudioLoader extends Loader {
	constructor(manager) {
		super(manager);
	}

	load(url, onLoad, onProgress, onError) {
		const scope = this;
		const loader = new FileLoader(this.manager);
		loader.setResponseType('arraybuffer');
		loader.setPath(this.path);
		loader.setRequestHeader(this.requestHeader);
		loader.setWithCredentials(this.withCredentials);
		loader.load(url, function (buffer) {
			try {
				// Create a copy of the buffer. The `decodeAudioData` method
				// detaches the buffer when complete, preventing reuse.
				const bufferCopy = buffer.slice(0);
				const context = AudioContext.getContext();
				context.decodeAudioData(bufferCopy, function (audioBuffer) {
					onLoad(audioBuffer);
				});
			} catch (e) {
				if (onError) {
					onError(e);
				} else {
					console.error(e);
				}

				scope.manager.itemError(url);
			}
		}, onProgress, onError);
	}

}

class HemisphereLightProbe extends LightProbe {
	constructor(skyColor, groundColor, intensity = 1) {
		super(undefined, intensity);
		const color1 = new Color().set(skyColor);
		const color2 = new Color().set(groundColor);
		const sky = new Vector3(color1.r, color1.g, color1.b);
		const ground = new Vector3(color2.r, color2.g, color2.b); // without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI );

		const c0 = Math.sqrt(Math.PI);
		const c1 = c0 * Math.sqrt(0.75);
		this.sh.coefficients[0].copy(sky).add(ground).multiplyScalar(c0);
		this.sh.coefficients[1].copy(sky).sub(ground).multiplyScalar(c1);
	}

}

HemisphereLightProbe.prototype.isHemisphereLightProbe = true;

class AmbientLightProbe extends LightProbe {
	constructor(color, intensity = 1) {
		super(undefined, intensity);
		const color1 = new Color().set(color); // without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI );

		this.sh.coefficients[0].set(color1.r, color1.g, color1.b).multiplyScalar(2 * Math.sqrt(Math.PI));
	}

}

AmbientLightProbe.prototype.isAmbientLightProbe = true;

const _eyeRight = /*@__PURE__*/new Matrix4();

const _eyeLeft = /*@__PURE__*/new Matrix4();

const _projectionMatrix = /*@__PURE__*/new Matrix4();

class StereoCamera {
	constructor() {
		this.type = 'StereoCamera';
		this.aspect = 1;
		this.eyeSep = 0.064;
		this.cameraL = new PerspectiveCamera();
		this.cameraL.layers.enable(1);
		this.cameraL.matrixAutoUpdate = false;
		this.cameraR = new PerspectiveCamera();
		this.cameraR.layers.enable(2);
		this.cameraR.matrixAutoUpdate = false;
		this._cache = {
			focus: null,
			fov: null,
			aspect: null,
			near: null,
			far: null,
			zoom: null,
			eyeSep: null
		};
	}

	update(camera) {
		const cache = this._cache;
		const needsUpdate = cache.focus !== camera.focus || cache.fov !== camera.fov || cache.aspect !== camera.aspect * this.aspect || cache.near !== camera.near || cache.far !== camera.far || cache.zoom !== camera.zoom || cache.eyeSep !== this.eyeSep;

		if (needsUpdate) {
			cache.focus = camera.focus;
			cache.fov = camera.fov;
			cache.aspect = camera.aspect * this.aspect;
			cache.near = camera.near;
			cache.far = camera.far;
			cache.zoom = camera.zoom;
			cache.eyeSep = this.eyeSep; // Off-axis stereoscopic effect based on
			// http://paulbourke.net/stereographics/stereorender/

			_projectionMatrix.copy(camera.projectionMatrix);

			const eyeSepHalf = cache.eyeSep / 2;
			const eyeSepOnProjection = eyeSepHalf * cache.near / cache.focus;
			const ymax = cache.near * Math.tan(DEG2RAD * cache.fov * 0.5) / cache.zoom;
			let xmin, xmax; // translate xOffset

			_eyeLeft.elements[12] = -eyeSepHalf;
			_eyeRight.elements[12] = eyeSepHalf; // for left eye

			xmin = -ymax * cache.aspect + eyeSepOnProjection;
			xmax = ymax * cache.aspect + eyeSepOnProjection;
			_projectionMatrix.elements[0] = 2 * cache.near / (xmax - xmin);
			_projectionMatrix.elements[8] = (xmax + xmin) / (xmax - xmin);
			this.cameraL.projectionMatrix.copy(_projectionMatrix); // for right eye

			xmin = -ymax * cache.aspect - eyeSepOnProjection;
			xmax = ymax * cache.aspect - eyeSepOnProjection;
			_projectionMatrix.elements[0] = 2 * cache.near / (xmax - xmin);
			_projectionMatrix.elements[8] = (xmax + xmin) / (xmax - xmin);
			this.cameraR.projectionMatrix.copy(_projectionMatrix);
		}

		this.cameraL.matrixWorld.copy(camera.matrixWorld).multiply(_eyeLeft);
		this.cameraR.matrixWorld.copy(camera.matrixWorld).multiply(_eyeRight);
	}

}

class Clock {
	constructor(autoStart = true) {
		this.autoStart = autoStart;
		this.startTime = 0;
		this.oldTime = 0;
		this.elapsedTime = 0;
		this.running = false;
	}

	start() {
		this.startTime = now();
		this.oldTime = this.startTime;
		this.elapsedTime = 0;
		this.running = true;
	}

	stop() {
		this.getElapsedTime();
		this.running = false;
		this.autoStart = false;
	}

	getElapsedTime() {
		this.getDelta();
		return this.elapsedTime;
	}

	getDelta() {
		let diff = 0;

		if (this.autoStart && !this.running) {
			this.start();
			return 0;
		}

		if (this.running) {
			const newTime = now();
			diff = (newTime - this.oldTime) / 1000;
			this.oldTime = newTime;
			this.elapsedTime += diff;
		}

		return diff;
	}

}

function now() {
	return (typeof performance === 'undefined' ? Date : performance).now(); // see #10732
}

const _position$1 = /*@__PURE__*/new Vector3();

const _quaternion$1 = /*@__PURE__*/new Quaternion();

const _scale$1 = /*@__PURE__*/new Vector3();

const _orientation$1 = /*@__PURE__*/new Vector3();

class AudioListener extends Object3D {
	constructor() {
		super();
		this.type = 'AudioListener';
		this.context = AudioContext.getContext();
		this.gain = this.context.createGain();
		this.gain.connect(this.context.destination);
		this.filter = null;
		this.timeDelta = 0; // private

		this._clock = new Clock();
	}

	getInput() {
		return this.gain;
	}

	removeFilter() {
		if (this.filter !== null) {
			this.gain.disconnect(this.filter);
			this.filter.disconnect(this.context.destination);
			this.gain.connect(this.context.destination);
			this.filter = null;
		}

		return this;
	}

	getFilter() {
		return this.filter;
	}

	setFilter(value) {
		if (this.filter !== null) {
			this.gain.disconnect(this.filter);
			this.filter.disconnect(this.context.destination);
		} else {
			this.gain.disconnect(this.context.destination);
		}

		this.filter = value;
		this.gain.connect(this.filter);
		this.filter.connect(this.context.destination);
		return this;
	}

	getMasterVolume() {
		return this.gain.gain.value;
	}

	setMasterVolume(value) {
		this.gain.gain.setTargetAtTime(value, this.context.currentTime, 0.01);
		return this;
	}

	updateMatrixWorld(force) {
		super.updateMatrixWorld(force);
		const listener = this.context.listener;
		const up = this.up;
		this.timeDelta = this._clock.getDelta();
		this.matrixWorld.decompose(_position$1, _quaternion$1, _scale$1);

		_orientation$1.set(0, 0, -1).applyQuaternion(_quaternion$1);

		if (listener.positionX) {
			// code path for Chrome (see #14393)
			const endTime = this.context.currentTime + this.timeDelta;
			listener.positionX.linearRampToValueAtTime(_position$1.x, endTime);
			listener.positionY.linearRampToValueAtTime(_position$1.y, endTime);
			listener.positionZ.linearRampToValueAtTime(_position$1.z, endTime);
			listener.forwardX.linearRampToValueAtTime(_orientation$1.x, endTime);
			listener.forwardY.linearRampToValueAtTime(_orientation$1.y, endTime);
			listener.forwardZ.linearRampToValueAtTime(_orientation$1.z, endTime);
			listener.upX.linearRampToValueAtTime(up.x, endTime);
			listener.upY.linearRampToValueAtTime(up.y, endTime);
			listener.upZ.linearRampToValueAtTime(up.z, endTime);
		} else {
			listener.setPosition(_position$1.x, _position$1.y, _position$1.z);
			listener.setOrientation(_orientation$1.x, _orientation$1.y, _orientation$1.z, up.x, up.y, up.z);
		}
	}

}

class Audio extends Object3D {
	constructor(listener) {
		super();
		this.type = 'Audio';
		this.listener = listener;
		this.context = listener.context;
		this.gain = this.context.createGain();
		this.gain.connect(listener.getInput());
		this.autoplay = false;
		this.buffer = null;
		this.detune = 0;
		this.loop = false;
		this.loopStart = 0;
		this.loopEnd = 0;
		this.offset = 0;
		this.duration = undefined;
		this.playbackRate = 1;
		this.isPlaying = false;
		this.hasPlaybackControl = true;
		this.source = null;
		this.sourceType = 'empty';
		this._startedAt = 0;
		this._progress = 0;
		this._connected = false;
		this.filters = [];
	}

	getOutput() {
		return this.gain;
	}

	setNodeSource(audioNode) {
		this.hasPlaybackControl = false;
		this.sourceType = 'audioNode';
		this.source = audioNode;
		this.connect();
		return this;
	}

	setMediaElementSource(mediaElement) {
		this.hasPlaybackControl = false;
		this.sourceType = 'mediaNode';
		this.source = this.context.createMediaElementSource(mediaElement);
		this.connect();
		return this;
	}

	setMediaStreamSource(mediaStream) {
		this.hasPlaybackControl = false;
		this.sourceType = 'mediaStreamNode';
		this.source = this.context.createMediaStreamSource(mediaStream);
		this.connect();
		return this;
	}

	setBuffer(audioBuffer) {
		this.buffer = audioBuffer;
		this.sourceType = 'buffer';
		if (this.autoplay) this.play();
		return this;
	}

	play(delay = 0) {
		if (this.isPlaying === true) {
			console.warn('THREE.Audio: Audio is already playing.');
			return;
		}

		if (this.hasPlaybackControl === false) {
			console.warn('THREE.Audio: this Audio has no playback control.');
			return;
		}

		this._startedAt = this.context.currentTime + delay;
		const source = this.context.createBufferSource();
		source.buffer = this.buffer;
		source.loop = this.loop;
		source.loopStart = this.loopStart;
		source.loopEnd = this.loopEnd;
		source.onended = this.onEnded.bind(this);
		source.start(this._startedAt, this._progress + this.offset, this.duration);
		this.isPlaying = true;
		this.source = source;
		this.setDetune(this.detune);
		this.setPlaybackRate(this.playbackRate);
		return this.connect();
	}

	pause() {
		if (this.hasPlaybackControl === false) {
			console.warn('THREE.Audio: this Audio has no playback control.');
			return;
		}

		if (this.isPlaying === true) {
			// update current progress
			this._progress += Math.max(this.context.currentTime - this._startedAt, 0) * this.playbackRate;

			if (this.loop === true) {
				// ensure _progress does not exceed duration with looped audios
				this._progress = this._progress % (this.duration || this.buffer.duration);
			}

			this.source.stop();
			this.source.onended = null;
			this.isPlaying = false;
		}

		return this;
	}

	stop() {
		if (this.hasPlaybackControl === false) {
			console.warn('THREE.Audio: this Audio has no playback control.');
			return;
		}

		this._progress = 0;
		this.source.stop();
		this.source.onended = null;
		this.isPlaying = false;
		return this;
	}

	connect() {
		if (this.filters.length > 0) {
			this.source.connect(this.filters[0]);

			for (let i = 1, l = this.filters.length; i < l; i++) {
				this.filters[i - 1].connect(this.filters[i]);
			}

			this.filters[this.filters.length - 1].connect(this.getOutput());
		} else {
			this.source.connect(this.getOutput());
		}

		this._connected = true;
		return this;
	}

	disconnect() {
		if (this.filters.length > 0) {
			this.source.disconnect(this.filters[0]);

			for (let i = 1, l = this.filters.length; i < l; i++) {
				this.filters[i - 1].disconnect(this.filters[i]);
			}

			this.filters[this.filters.length - 1].disconnect(this.getOutput());
		} else {
			this.source.disconnect(this.getOutput());
		}

		this._connected = false;
		return this;
	}

	getFilters() {
		return this.filters;
	}

	setFilters(value) {
		if (!value) value = [];

		if (this._connected === true) {
			this.disconnect();
			this.filters = value.slice();
			this.connect();
		} else {
			this.filters = value.slice();
		}

		return this;
	}

	setDetune(value) {
		this.detune = value;
		if (this.source.detune === undefined) return; // only set detune when available

		if (this.isPlaying === true) {
			this.source.detune.setTargetAtTime(this.detune, this.context.currentTime, 0.01);
		}

		return this;
	}

	getDetune() {
		return this.detune;
	}

	getFilter() {
		return this.getFilters()[0];
	}

	setFilter(filter) {
		return this.setFilters(filter ? [filter] : []);
	}

	setPlaybackRate(value) {
		if (this.hasPlaybackControl === false) {
			console.warn('THREE.Audio: this Audio has no playback control.');
			return;
		}

		this.playbackRate = value;

		if (this.isPlaying === true) {
			this.source.playbackRate.setTargetAtTime(this.playbackRate, this.context.currentTime, 0.01);
		}

		return this;
	}

	getPlaybackRate() {
		return this.playbackRate;
	}

	onEnded() {
		this.isPlaying = false;
	}

	getLoop() {
		if (this.hasPlaybackControl === false) {
			console.warn('THREE.Audio: this Audio has no playback control.');
			return false;
		}

		return this.loop;
	}

	setLoop(value) {
		if (this.hasPlaybackControl === false) {
			console.warn('THREE.Audio: this Audio has no playback control.');
			return;
		}

		this.loop = value;

		if (this.isPlaying === true) {
			this.source.loop = this.loop;
		}

		return this;
	}

	setLoopStart(value) {
		this.loopStart = value;
		return this;
	}

	setLoopEnd(value) {
		this.loopEnd = value;
		return this;
	}

	getVolume() {
		return this.gain.gain.value;
	}

	setVolume(value) {
		this.gain.gain.setTargetAtTime(value, this.context.currentTime, 0.01);
		return this;
	}

}

const _position = /*@__PURE__*/new Vector3();

const _quaternion = /*@__PURE__*/new Quaternion();

const _scale = /*@__PURE__*/new Vector3();

const _orientation = /*@__PURE__*/new Vector3();

class PositionalAudio extends Audio {
	constructor(listener) {
		super(listener);
		this.panner = this.context.createPanner();
		this.panner.panningModel = 'HRTF';
		this.panner.connect(this.gain);
	}

	getOutput() {
		return this.panner;
	}

	getRefDistance() {
		return this.panner.refDistance;
	}

	setRefDistance(value) {
		this.panner.refDistance = value;
		return this;
	}

	getRolloffFactor() {
		return this.panner.rolloffFactor;
	}

	setRolloffFactor(value) {
		this.panner.rolloffFactor = value;
		return this;
	}

	getDistanceModel() {
		return this.panner.distanceModel;
	}

	setDistanceModel(value) {
		this.panner.distanceModel = value;
		return this;
	}

	getMaxDistance() {
		return this.panner.maxDistance;
	}

	setMaxDistance(value) {
		this.panner.maxDistance = value;
		return this;
	}

	setDirectionalCone(coneInnerAngle, coneOuterAngle, coneOuterGain) {
		this.panner.coneInnerAngle = coneInnerAngle;
		this.panner.coneOuterAngle = coneOuterAngle;
		this.panner.coneOuterGain = coneOuterGain;
		return this;
	}

	updateMatrixWorld(force) {
		super.updateMatrixWorld(force);
		if (this.hasPlaybackControl === true && this.isPlaying === false) return;
		this.matrixWorld.decompose(_position, _quaternion, _scale);

		_orientation.set(0, 0, 1).applyQuaternion(_quaternion);

		const panner = this.panner;

		if (panner.positionX) {
			// code path for Chrome and Firefox (see #14393)
			const endTime = this.context.currentTime + this.listener.timeDelta;
			panner.positionX.linearRampToValueAtTime(_position.x, endTime);
			panner.positionY.linearRampToValueAtTime(_position.y, endTime);
			panner.positionZ.linearRampToValueAtTime(_position.z, endTime);
			panner.orientationX.linearRampToValueAtTime(_orientation.x, endTime);
			panner.orientationY.linearRampToValueAtTime(_orientation.y, endTime);
			panner.orientationZ.linearRampToValueAtTime(_orientation.z, endTime);
		} else {
			panner.setPosition(_position.x, _position.y, _position.z);
			panner.setOrientation(_orientation.x, _orientation.y, _orientation.z);
		}
	}

}

class AudioAnalyser {
	constructor(audio, fftSize = 2048) {
		this.analyser = audio.context.createAnalyser();
		this.analyser.fftSize = fftSize;
		this.data = new Uint8Array(this.analyser.frequencyBinCount);
		audio.getOutput().connect(this.analyser);
	}

	getFrequencyData() {
		this.analyser.getByteFrequencyData(this.data);
		return this.data;
	}

	getAverageFrequency() {
		let value = 0;
		const data = this.getFrequencyData();

		for (let i = 0; i < data.length; i++) {
			value += data[i];
		}

		return value / data.length;
	}

}

class PropertyMixer {
	constructor(binding, typeName, valueSize) {
		this.binding = binding;
		this.valueSize = valueSize;
		let mixFunction, mixFunctionAdditive, setIdentity; // buffer layout: [ incoming | accu0 | accu1 | orig | addAccu | (optional work) ]
		//
		// interpolators can use .buffer as their .result
		// the data then goes to 'incoming'
		//
		// 'accu0' and 'accu1' are used frame-interleaved for
		// the cumulative result and are compared to detect
		// changes
		//
		// 'orig' stores the original state of the property
		//
		// 'add' is used for additive cumulative results
		//
		// 'work' is optional and is only present for quaternion types. It is used
		// to store intermediate quaternion multiplication results

		switch (typeName) {
			case 'quaternion':
				mixFunction = this._slerp;
				mixFunctionAdditive = this._slerpAdditive;
				setIdentity = this._setAdditiveIdentityQuaternion;
				this.buffer = new Float64Array(valueSize * 6);
				this._workIndex = 5;
				break;

			case 'string':
			case 'bool':
				mixFunction = this._select; // Use the regular mix function and for additive on these types,
				// additive is not relevant for non-numeric types

				mixFunctionAdditive = this._select;
				setIdentity = this._setAdditiveIdentityOther;
				this.buffer = new Array(valueSize * 5);
				break;

			default:
				mixFunction = this._lerp;
				mixFunctionAdditive = this._lerpAdditive;
				setIdentity = this._setAdditiveIdentityNumeric;
				this.buffer = new Float64Array(valueSize * 5);
		}

		this._mixBufferRegion = mixFunction;
		this._mixBufferRegionAdditive = mixFunctionAdditive;
		this._setIdentity = setIdentity;
		this._origIndex = 3;
		this._addIndex = 4;
		this.cumulativeWeight = 0;
		this.cumulativeWeightAdditive = 0;
		this.useCount = 0;
		this.referenceCount = 0;
	} // accumulate data in the 'incoming' region into 'accu<i>'


	accumulate(accuIndex, weight) {
		// note: happily accumulating nothing when weight = 0, the caller knows
		// the weight and shouldn't have made the call in the first place
		const buffer = this.buffer,
					stride = this.valueSize,
					offset = accuIndex * stride + stride;
		let currentWeight = this.cumulativeWeight;

		if (currentWeight === 0) {
			// accuN := incoming * weight
			for (let i = 0; i !== stride; ++i) {
				buffer[offset + i] = buffer[i];
			}

			currentWeight = weight;
		} else {
			// accuN := accuN + incoming * weight
			currentWeight += weight;
			const mix = weight / currentWeight;

			this._mixBufferRegion(buffer, offset, 0, mix, stride);
		}

		this.cumulativeWeight = currentWeight;
	} // accumulate data in the 'incoming' region into 'add'


	accumulateAdditive(weight) {
		const buffer = this.buffer,
					stride = this.valueSize,
					offset = stride * this._addIndex;

		if (this.cumulativeWeightAdditive === 0) {
			// add = identity
			this._setIdentity();
		} // add := add + incoming * weight


		this._mixBufferRegionAdditive(buffer, offset, 0, weight, stride);

		this.cumulativeWeightAdditive += weight;
	} // apply the state of 'accu<i>' to the binding when accus differ


	apply(accuIndex) {
		const stride = this.valueSize,
					buffer = this.buffer,
					offset = accuIndex * stride + stride,
					weight = this.cumulativeWeight,
					weightAdditive = this.cumulativeWeightAdditive,
					binding = this.binding;
		this.cumulativeWeight = 0;
		this.cumulativeWeightAdditive = 0;

		if (weight < 1) {
			// accuN := accuN + original * ( 1 - cumulativeWeight )
			const originalValueOffset = stride * this._origIndex;

			this._mixBufferRegion(buffer, offset, originalValueOffset, 1 - weight, stride);
		}

		if (weightAdditive > 0) {
			// accuN := accuN + additive accuN
			this._mixBufferRegionAdditive(buffer, offset, this._addIndex * stride, 1, stride);
		}

		for (let i = stride, e = stride + stride; i !== e; ++i) {
			if (buffer[i] !== buffer[i + stride]) {
				// value has changed -> update scene graph
				binding.setValue(buffer, offset);
				break;
			}
		}
	} // remember the state of the bound property and copy it to both accus


	saveOriginalState() {
		const binding = this.binding;
		const buffer = this.buffer,
					stride = this.valueSize,
					originalValueOffset = stride * this._origIndex;
		binding.getValue(buffer, originalValueOffset); // accu[0..1] := orig -- initially detect changes against the original

		for (let i = stride, e = originalValueOffset; i !== e; ++i) {
			buffer[i] = buffer[originalValueOffset + i % stride];
		} // Add to identity for additive


		this._setIdentity();

		this.cumulativeWeight = 0;
		this.cumulativeWeightAdditive = 0;
	} // apply the state previously taken via 'saveOriginalState' to the binding


	restoreOriginalState() {
		const originalValueOffset = this.valueSize * 3;
		this.binding.setValue(this.buffer, originalValueOffset);
	}

	_setAdditiveIdentityNumeric() {
		const startIndex = this._addIndex * this.valueSize;
		const endIndex = startIndex + this.valueSize;

		for (let i = startIndex; i < endIndex; i++) {
			this.buffer[i] = 0;
		}
	}

	_setAdditiveIdentityQuaternion() {
		this._setAdditiveIdentityNumeric();

		this.buffer[this._addIndex * this.valueSize + 3] = 1;
	}

	_setAdditiveIdentityOther() {
		const startIndex = this._origIndex * this.valueSize;
		const targetIndex = this._addIndex * this.valueSize;

		for (let i = 0; i < this.valueSize; i++) {
			this.buffer[targetIndex + i] = this.buffer[startIndex + i];
		}
	} // mix functions


	_select(buffer, dstOffset, srcOffset, t, stride) {
		if (t >= 0.5) {
			for (let i = 0; i !== stride; ++i) {
				buffer[dstOffset + i] = buffer[srcOffset + i];
			}
		}
	}

	_slerp(buffer, dstOffset, srcOffset, t) {
		Quaternion.slerpFlat(buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t);
	}

	_slerpAdditive(buffer, dstOffset, srcOffset, t, stride) {
		const workOffset = this._workIndex * stride; // Store result in intermediate buffer offset

		Quaternion.multiplyQuaternionsFlat(buffer, workOffset, buffer, dstOffset, buffer, srcOffset); // Slerp to the intermediate result

		Quaternion.slerpFlat(buffer, dstOffset, buffer, dstOffset, buffer, workOffset, t);
	}

	_lerp(buffer, dstOffset, srcOffset, t, stride) {
		const s = 1 - t;

		for (let i = 0; i !== stride; ++i) {
			const j = dstOffset + i;
			buffer[j] = buffer[j] * s + buffer[srcOffset + i] * t;
		}
	}

	_lerpAdditive(buffer, dstOffset, srcOffset, t, stride) {
		for (let i = 0; i !== stride; ++i) {
			const j = dstOffset + i;
			buffer[j] = buffer[j] + buffer[srcOffset + i] * t;
		}
	}

}

// Characters [].:/ are reserved for track binding syntax.
const _RESERVED_CHARS_RE = '\\[\\]\\.:\\/';

const _reservedRe = new RegExp('[' + _RESERVED_CHARS_RE + ']', 'g'); // Attempts to allow node names from any language. ES5's `\w` regexp matches
// only latin characters, and the unicode \p{L} is not yet supported. So
// instead, we exclude reserved characters and match everything else.


const _wordChar = '[^' + _RESERVED_CHARS_RE + ']';

const _wordCharOrDot = '[^' + _RESERVED_CHARS_RE.replace('\\.', '') + ']'; // Parent directories, delimited by '/' or ':'. Currently unused, but must
// be matched to parse the rest of the track name.


const _directoryRe = /((?:WC+[\/:])*)/.source.replace('WC', _wordChar); // Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.


const _nodeRe = /(WCOD+)?/.source.replace('WCOD', _wordCharOrDot); // Object on target node, and accessor. May not contain reserved
// characters. Accessor may contain any character except closing bracket.


const _objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace('WC', _wordChar); // Property and accessor. May not contain reserved characters. Accessor may
// contain any non-bracket characters.


const _propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace('WC', _wordChar);

const _trackRe = new RegExp('' + '^' + _directoryRe + _nodeRe + _objectRe + _propertyRe + '$');

const _supportedObjectNames = ['material', 'materials', 'bones'];

class Composite {
	constructor(targetGroup, path, optionalParsedPath) {
		const parsedPath = optionalParsedPath || PropertyBinding.parseTrackName(path);
		this._targetGroup = targetGroup;
		this._bindings = targetGroup.subscribe_(path, parsedPath);
	}

	getValue(array, offset) {
		this.bind(); // bind all binding

		const firstValidIndex = this._targetGroup.nCachedObjects_,
					binding = this._bindings[firstValidIndex]; // and only call .getValue on the first

		if (binding !== undefined) binding.getValue(array, offset);
	}

	setValue(array, offset) {
		const bindings = this._bindings;

		for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
			bindings[i].setValue(array, offset);
		}
	}

	bind() {
		const bindings = this._bindings;

		for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
			bindings[i].bind();
		}
	}

	unbind() {
		const bindings = this._bindings;

		for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
			bindings[i].unbind();
		}
	}

} // Note: This class uses a State pattern on a per-method basis:
// 'bind' sets 'this.getValue' / 'setValue' and shadows the
// prototype version of these methods with one that represents
// the bound state. When the property is not found, the methods
// become no-ops.


class PropertyBinding {
	constructor(rootNode, path, parsedPath) {
		this.path = path;
		this.parsedPath = parsedPath || PropertyBinding.parseTrackName(path);
		this.node = PropertyBinding.findNode(rootNode, this.parsedPath.nodeName) || rootNode;
		this.rootNode = rootNode; // initial state of these methods that calls 'bind'

		this.getValue = this._getValue_unbound;
		this.setValue = this._setValue_unbound;
	}

	static create(root, path, parsedPath) {
		if (!(root && root.isAnimationObjectGroup)) {
			return new PropertyBinding(root, path, parsedPath);
		} else {
			return new PropertyBinding.Composite(root, path, parsedPath);
		}
	}
	/**
	 * Replaces spaces with underscores and removes unsupported characters from
	 * node names, to ensure compatibility with parseTrackName().
	 *
	 * @param {string} name Node name to be sanitized.
	 * @return {string}
	 */


	static sanitizeNodeName(name) {
		return name.replace(/\s/g, '_').replace(_reservedRe, '');
	}

	static parseTrackName(trackName) {
		const matches = _trackRe.exec(trackName);

		if (!matches) {
			throw new Error('PropertyBinding: Cannot parse trackName: ' + trackName);
		}

		const results = {
			// directoryName: matches[ 1 ], // (tschw) currently unused
			nodeName: matches[2],
			objectName: matches[3],
			objectIndex: matches[4],
			propertyName: matches[5],
			// required
			propertyIndex: matches[6]
		};
		const lastDot = results.nodeName && results.nodeName.lastIndexOf('.');

		if (lastDot !== undefined && lastDot !== -1) {
			const objectName = results.nodeName.substring(lastDot + 1); // Object names must be checked against an allowlist. Otherwise, there
			// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
			// 'bar' could be the objectName, or part of a nodeName (which can
			// include '.' characters).

			if (_supportedObjectNames.indexOf(objectName) !== -1) {
				results.nodeName = results.nodeName.substring(0, lastDot);
				results.objectName = objectName;
			}
		}

		if (results.propertyName === null || results.propertyName.length === 0) {
			throw new Error('PropertyBinding: can not parse propertyName from trackName: ' + trackName);
		}

		return results;
	}

	static findNode(root, nodeName) {
		if (!nodeName || nodeName === '' || nodeName === '.' || nodeName === -1 || nodeName === root.name || nodeName === root.uuid) {
			return root;
		} // search into skeleton bones.


		if (root.skeleton) {
			const bone = root.skeleton.getBoneByName(nodeName);

			if (bone !== undefined) {
				return bone;
			}
		} // search into node subtree.


		if (root.children) {
			const searchNodeSubtree = function (children) {
				for (let i = 0; i < children.length; i++) {
					const childNode = children[i];

					if (childNode.name === nodeName || childNode.uuid === nodeName) {
						return childNode;
					}

					const result = searchNodeSubtree(childNode.children);
					if (result) return result;
				}

				return null;
			};

			const subTreeNode = searchNodeSubtree(root.children);

			if (subTreeNode) {
				return subTreeNode;
			}
		}

		return null;
	} // these are used to "bind" a nonexistent property


	_getValue_unavailable() {}

	_setValue_unavailable() {} // Getters


	_getValue_direct(buffer, offset) {
		buffer[offset] = this.targetObject[this.propertyName];
	}

	_getValue_array(buffer, offset) {
		const source = this.resolvedProperty;

		for (let i = 0, n = source.length; i !== n; ++i) {
			buffer[offset++] = source[i];
		}
	}

	_getValue_arrayElement(buffer, offset) {
		buffer[offset] = this.resolvedProperty[this.propertyIndex];
	}

	_getValue_toArray(buffer, offset) {
		this.resolvedProperty.toArray(buffer, offset);
	} // Direct


	_setValue_direct(buffer, offset) {
		this.targetObject[this.propertyName] = buffer[offset];
	}

	_setValue_direct_setNeedsUpdate(buffer, offset) {
		this.targetObject[this.propertyName] = buffer[offset];
		this.targetObject.needsUpdate = true;
	}

	_setValue_direct_setMatrixWorldNeedsUpdate(buffer, offset) {
		this.targetObject[this.propertyName] = buffer[offset];
		this.targetObject.matrixWorldNeedsUpdate = true;
	} // EntireArray


	_setValue_array(buffer, offset) {
		const dest = this.resolvedProperty;

		for (let i = 0, n = dest.length; i !== n; ++i) {
			dest[i] = buffer[offset++];
		}
	}

	_setValue_array_setNeedsUpdate(buffer, offset) {
		const dest = this.resolvedProperty;

		for (let i = 0, n = dest.length; i !== n; ++i) {
			dest[i] = buffer[offset++];
		}

		this.targetObject.needsUpdate = true;
	}

	_setValue_array_setMatrixWorldNeedsUpdate(buffer, offset) {
		const dest = this.resolvedProperty;

		for (let i = 0, n = dest.length; i !== n; ++i) {
			dest[i] = buffer[offset++];
		}

		this.targetObject.matrixWorldNeedsUpdate = true;
	} // ArrayElement


	_setValue_arrayElement(buffer, offset) {
		this.resolvedProperty[this.propertyIndex] = buffer[offset];
	}

	_setValue_arrayElement_setNeedsUpdate(buffer, offset) {
		this.resolvedProperty[this.propertyIndex] = buffer[offset];
		this.targetObject.needsUpdate = true;
	}

	_setValue_arrayElement_setMatrixWorldNeedsUpdate(buffer, offset) {
		this.resolvedProperty[this.propertyIndex] = buffer[offset];
		this.targetObject.matrixWorldNeedsUpdate = true;
	} // HasToFromArray


	_setValue_fromArray(buffer, offset) {
		this.resolvedProperty.fromArray(buffer, offset);
	}

	_setValue_fromArray_setNeedsUpdate(buffer, offset) {
		this.resolvedProperty.fromArray(buffer, offset);
		this.targetObject.needsUpdate = true;
	}

	_setValue_fromArray_setMatrixWorldNeedsUpdate(buffer, offset) {
		this.resolvedProperty.fromArray(buffer, offset);
		this.targetObject.matrixWorldNeedsUpdate = true;
	}

	_getValue_unbound(targetArray, offset) {
		this.bind();
		this.getValue(targetArray, offset);
	}

	_setValue_unbound(sourceArray, offset) {
		this.bind();
		this.setValue(sourceArray, offset);
	} // create getter / setter pair for a property in the scene graph


	bind() {
		let targetObject = this.node;
		const parsedPath = this.parsedPath;
		const objectName = parsedPath.objectName;
		const propertyName = parsedPath.propertyName;
		let propertyIndex = parsedPath.propertyIndex;

		if (!targetObject) {
			targetObject = PropertyBinding.findNode(this.rootNode, parsedPath.nodeName) || this.rootNode;
			this.node = targetObject;
		} // set fail state so we can just 'return' on error


		this.getValue = this._getValue_unavailable;
		this.setValue = this._setValue_unavailable; // ensure there is a value node

		if (!targetObject) {
			console.error('THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.');
			return;
		}

		if (objectName) {
			let objectIndex = parsedPath.objectIndex; // special cases were we need to reach deeper into the hierarchy to get the face materials....

			switch (objectName) {
				case 'materials':
					if (!targetObject.material) {
						console.error('THREE.PropertyBinding: Can not bind to material as node does not have a material.', this);
						return;
					}

					if (!targetObject.material.materials) {
						console.error('THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this);
						return;
					}

					targetObject = targetObject.material.materials;
					break;

				case 'bones':
					if (!targetObject.skeleton) {
						console.error('THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this);
						return;
					} // potential future optimization: skip this if propertyIndex is already an integer
					// and convert the integer string to a true integer.


					targetObject = targetObject.skeleton.bones; // support resolving morphTarget names into indices.

					for (let i = 0; i < targetObject.length; i++) {
						if (targetObject[i].name === objectIndex) {
							objectIndex = i;
							break;
						}
					}

					break;

				default:
					if (targetObject[objectName] === undefined) {
						console.error('THREE.PropertyBinding: Can not bind to objectName of node undefined.', this);
						return;
					}

					targetObject = targetObject[objectName];
			}

			if (objectIndex !== undefined) {
				if (targetObject[objectIndex] === undefined) {
					console.error('THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject);
					return;
				}

				targetObject = targetObject[objectIndex];
			}
		} // resolve property


		const nodeProperty = targetObject[propertyName];

		if (nodeProperty === undefined) {
			const nodeName = parsedPath.nodeName;
			console.error('THREE.PropertyBinding: Trying to update property for track: ' + nodeName + '.' + propertyName + ' but it wasn\'t found.', targetObject);
			return;
		} // determine versioning scheme


		let versioning = this.Versioning.None;
		this.targetObject = targetObject;

		if (targetObject.needsUpdate !== undefined) {
			// material
			versioning = this.Versioning.NeedsUpdate;
		} else if (targetObject.matrixWorldNeedsUpdate !== undefined) {
			// node transform
			versioning = this.Versioning.MatrixWorldNeedsUpdate;
		} // determine how the property gets bound


		let bindingType = this.BindingType.Direct;

		if (propertyIndex !== undefined) {
			// access a sub element of the property array (only primitives are supported right now)
			if (propertyName === 'morphTargetInfluences') {
				// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.
				// support resolving morphTarget names into indices.
				if (!targetObject.geometry) {
					console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this);
					return;
				}

				if (targetObject.geometry.isBufferGeometry) {
					if (!targetObject.geometry.morphAttributes) {
						console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this);
						return;
					}

					if (targetObject.morphTargetDictionary[propertyIndex] !== undefined) {
						propertyIndex = targetObject.morphTargetDictionary[propertyIndex];
					}
				} else {
					console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.', this);
					return;
				}
			}

			bindingType = this.BindingType.ArrayElement;
			this.resolvedProperty = nodeProperty;
			this.propertyIndex = propertyIndex;
		} else if (nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined) {
			// must use copy for Object3D.Euler/Quaternion
			bindingType = this.BindingType.HasFromToArray;
			this.resolvedProperty = nodeProperty;
		} else if (Array.isArray(nodeProperty)) {
			bindingType = this.BindingType.EntireArray;
			this.resolvedProperty = nodeProperty;
		} else {
			this.propertyName = propertyName;
		} // select getter / setter


		this.getValue = this.GetterByBindingType[bindingType];
		this.setValue = this.SetterByBindingTypeAndVersioning[bindingType][versioning];
	}

	unbind() {
		this.node = null; // back to the prototype version of getValue / setValue
		// note: avoiding to mutate the shape of 'this' via 'delete'

		this.getValue = this._getValue_unbound;
		this.setValue = this._setValue_unbound;
	}

}

PropertyBinding.Composite = Composite;
PropertyBinding.prototype.BindingType = {
	Direct: 0,
	EntireArray: 1,
	ArrayElement: 2,
	HasFromToArray: 3
};
PropertyBinding.prototype.Versioning = {
	None: 0,
	NeedsUpdate: 1,
	MatrixWorldNeedsUpdate: 2
};
PropertyBinding.prototype.GetterByBindingType = [PropertyBinding.prototype._getValue_direct, PropertyBinding.prototype._getValue_array, PropertyBinding.prototype._getValue_arrayElement, PropertyBinding.prototype._getValue_toArray];
PropertyBinding.prototype.SetterByBindingTypeAndVersioning = [[// Direct
PropertyBinding.prototype._setValue_direct, PropertyBinding.prototype._setValue_direct_setNeedsUpdate, PropertyBinding.prototype._setValue_direct_setMatrixWorldNeedsUpdate], [// EntireArray
PropertyBinding.prototype._setValue_array, PropertyBinding.prototype._setValue_array_setNeedsUpdate, PropertyBinding.prototype._setValue_array_setMatrixWorldNeedsUpdate], [// ArrayElement
PropertyBinding.prototype._setValue_arrayElement, PropertyBinding.prototype._setValue_arrayElement_setNeedsUpdate, PropertyBinding.prototype._setValue_arrayElement_setMatrixWorldNeedsUpdate], [// HasToFromArray
PropertyBinding.prototype._setValue_fromArray, PropertyBinding.prototype._setValue_fromArray_setNeedsUpdate, PropertyBinding.prototype._setValue_fromArray_setMatrixWorldNeedsUpdate]];

/**
 *
 * A group of objects that receives a shared animation state.
 *
 * Usage:
 *
 *	- Add objects you would otherwise pass as 'root' to the
 *		constructor or the .clipAction method of AnimationMixer.
 *
 *	- Instead pass this object as 'root'.
 *
 *	- You can also add and remove objects later when the mixer
 *		is running.
 *
 * Note:
 *
 *		Objects of this class appear as one object to the mixer,
 *		so cache control of the individual objects must be done
 *		on the group.
 *
 * Limitation:
 *
 *	- The animated properties must be compatible among the
 *		all objects in the group.
 *
 *	- A single property can either be controlled through a
 *		target group or directly, but not both.
 */

class AnimationObjectGroup {
	constructor() {
		this.uuid = generateUUID(); // cached objects followed by the active ones

		this._objects = Array.prototype.slice.call(arguments);
		this.nCachedObjects_ = 0; // threshold
		// note: read by PropertyBinding.Composite

		const indices = {};
		this._indicesByUUID = indices; // for bookkeeping

		for (let i = 0, n = arguments.length; i !== n; ++i) {
			indices[arguments[i].uuid] = i;
		}

		this._paths = []; // inside: string

		this._parsedPaths = []; // inside: { we don't care, here }

		this._bindings = []; // inside: Array< PropertyBinding >

		this._bindingsIndicesByPath = {}; // inside: indices in these arrays

		const scope = this;
		this.stats = {
			objects: {
				get total() {
					return scope._objects.length;
				},

				get inUse() {
					return this.total - scope.nCachedObjects_;
				}

			},

			get bindingsPerObject() {
				return scope._bindings.length;
			}

		};
	}

	add() {
		const objects = this._objects,
					indicesByUUID = this._indicesByUUID,
					paths = this._paths,
					parsedPaths = this._parsedPaths,
					bindings = this._bindings,
					nBindings = bindings.length;
		let knownObject = undefined,
				nObjects = objects.length,
				nCachedObjects = this.nCachedObjects_;

		for (let i = 0, n = arguments.length; i !== n; ++i) {
			const object = arguments[i],
						uuid = object.uuid;
			let index = indicesByUUID[uuid];

			if (index === undefined) {
				// unknown object -> add it to the ACTIVE region
				index = nObjects++;
				indicesByUUID[uuid] = index;
				objects.push(object); // accounting is done, now do the same for all bindings

				for (let j = 0, m = nBindings; j !== m; ++j) {
					bindings[j].push(new PropertyBinding(object, paths[j], parsedPaths[j]));
				}
			} else if (index < nCachedObjects) {
				knownObject = objects[index]; // move existing object to the ACTIVE region

				const firstActiveIndex = --nCachedObjects,
							lastCachedObject = objects[firstActiveIndex];
				indicesByUUID[lastCachedObject.uuid] = index;
				objects[index] = lastCachedObject;
				indicesByUUID[uuid] = firstActiveIndex;
				objects[firstActiveIndex] = object; // accounting is done, now do the same for all bindings

				for (let j = 0, m = nBindings; j !== m; ++j) {
					const bindingsForPath = bindings[j],
								lastCached = bindingsForPath[firstActiveIndex];
					let binding = bindingsForPath[index];
					bindingsForPath[index] = lastCached;

					if (binding === undefined) {
						// since we do not bother to create new bindings
						// for objects that are cached, the binding may
						// or may not exist
						binding = new PropertyBinding(object, paths[j], parsedPaths[j]);
					}

					bindingsForPath[firstActiveIndex] = binding;
				}
			} else if (objects[index] !== knownObject) {
				console.error('THREE.AnimationObjectGroup: Different objects with the same UUID ' + 'detected. Clean the caches or recreate your infrastructure when reloading scenes.');
			} // else the object is already where we want it to be

		} // for arguments


		this.nCachedObjects_ = nCachedObjects;
	}

	remove() {
		const objects = this._objects,
					indicesByUUID = this._indicesByUUID,
					bindings = this._bindings,
					nBindings = bindings.length;
		let nCachedObjects = this.nCachedObjects_;

		for (let i = 0, n = arguments.length; i !== n; ++i) {
			const object = arguments[i],
						uuid = object.uuid,
						index = indicesByUUID[uuid];

			if (index !== undefined && index >= nCachedObjects) {
				// move existing object into the CACHED region
				const lastCachedIndex = nCachedObjects++,
							firstActiveObject = objects[lastCachedIndex];
				indicesByUUID[firstActiveObject.uuid] = index;
				objects[index] = firstActiveObject;
				indicesByUUID[uuid] = lastCachedIndex;
				objects[lastCachedIndex] = object; // accounting is done, now do the same for all bindings

				for (let j = 0, m = nBindings; j !== m; ++j) {
					const bindingsForPath = bindings[j],
								firstActive = bindingsForPath[lastCachedIndex],
								binding = bindingsForPath[index];
					bindingsForPath[index] = firstActive;
					bindingsForPath[lastCachedIndex] = binding;
				}
			}
		} // for arguments


		this.nCachedObjects_ = nCachedObjects;
	} // remove & forget


	uncache() {
		const objects = this._objects,
					indicesByUUID = this._indicesByUUID,
					bindings = this._bindings,
					nBindings = bindings.length;
		let nCachedObjects = this.nCachedObjects_,
				nObjects = objects.length;

		for (let i = 0, n = arguments.length; i !== n; ++i) {
			const object = arguments[i],
						uuid = object.uuid,
						index = indicesByUUID[uuid];

			if (index !== undefined) {
				delete indicesByUUID[uuid];

				if (index < nCachedObjects) {
					// object is cached, shrink the CACHED region
					const firstActiveIndex = --nCachedObjects,
								lastCachedObject = objects[firstActiveIndex],
								lastIndex = --nObjects,
								lastObject = objects[lastIndex]; // last cached object takes this object's place

					indicesByUUID[lastCachedObject.uuid] = index;
					objects[index] = lastCachedObject; // last object goes to the activated slot and pop

					indicesByUUID[lastObject.uuid] = firstActiveIndex;
					objects[firstActiveIndex] = lastObject;
					objects.pop(); // accounting is done, now do the same for all bindings

					for (let j = 0, m = nBindings; j !== m; ++j) {
						const bindingsForPath = bindings[j],
									lastCached = bindingsForPath[firstActiveIndex],
									last = bindingsForPath[lastIndex];
						bindingsForPath[index] = lastCached;
						bindingsForPath[firstActiveIndex] = last;
						bindingsForPath.pop();
					}
				} else {
					// object is active, just swap with the last and pop
					const lastIndex = --nObjects,
								lastObject = objects[lastIndex];

					if (lastIndex > 0) {
						indicesByUUID[lastObject.uuid] = index;
					}

					objects[index] = lastObject;
					objects.pop(); // accounting is done, now do the same for all bindings

					for (let j = 0, m = nBindings; j !== m; ++j) {
						const bindingsForPath = bindings[j];
						bindingsForPath[index] = bindingsForPath[lastIndex];
						bindingsForPath.pop();
					}
				} // cached or active

			} // if object is known

		} // for arguments


		this.nCachedObjects_ = nCachedObjects;
	} // Internal interface used by befriended PropertyBinding.Composite:


	subscribe_(path, parsedPath) {
		// returns an array of bindings for the given path that is changed
		// according to the contained objects in the group
		const indicesByPath = this._bindingsIndicesByPath;
		let index = indicesByPath[path];
		const bindings = this._bindings;
		if (index !== undefined) return bindings[index];
		const paths = this._paths,
					parsedPaths = this._parsedPaths,
					objects = this._objects,
					nObjects = objects.length,
					nCachedObjects = this.nCachedObjects_,
					bindingsForPath = new Array(nObjects);
		index = bindings.length;
		indicesByPath[path] = index;
		paths.push(path);
		parsedPaths.push(parsedPath);
		bindings.push(bindingsForPath);

		for (let i = nCachedObjects, n = objects.length; i !== n; ++i) {
			const object = objects[i];
			bindingsForPath[i] = new PropertyBinding(object, path, parsedPath);
		}

		return bindingsForPath;
	}

	unsubscribe_(path) {
		// tells the group to forget about a property path and no longer
		// update the array previously obtained with 'subscribe_'
		const indicesByPath = this._bindingsIndicesByPath,
					index = indicesByPath[path];

		if (index !== undefined) {
			const paths = this._paths,
						parsedPaths = this._parsedPaths,
						bindings = this._bindings,
						lastBindingsIndex = bindings.length - 1,
						lastBindings = bindings[lastBindingsIndex],
						lastBindingsPath = path[lastBindingsIndex];
			indicesByPath[lastBindingsPath] = index;
			bindings[index] = lastBindings;
			bindings.pop();
			parsedPaths[index] = parsedPaths[lastBindingsIndex];
			parsedPaths.pop();
			paths[index] = paths[lastBindingsIndex];
			paths.pop();
		}
	}

}

AnimationObjectGroup.prototype.isAnimationObjectGroup = true;

class AnimationAction {
	constructor(mixer, clip, localRoot = null, blendMode = clip.blendMode) {
		this._mixer = mixer;
		this._clip = clip;
		this._localRoot = localRoot;
		this.blendMode = blendMode;
		const tracks = clip.tracks,
					nTracks = tracks.length,
					interpolants = new Array(nTracks);
		const interpolantSettings = {
			endingStart: ZeroCurvatureEnding,
			endingEnd: ZeroCurvatureEnding
		};

		for (let i = 0; i !== nTracks; ++i) {
			const interpolant = tracks[i].createInterpolant(null);
			interpolants[i] = interpolant;
			interpolant.settings = interpolantSettings;
		}

		this._interpolantSettings = interpolantSettings;
		this._interpolants = interpolants; // bound by the mixer
		// inside: PropertyMixer (managed by the mixer)

		this._propertyBindings = new Array(nTracks);
		this._cacheIndex = null; // for the memory manager

		this._byClipCacheIndex = null; // for the memory manager

		this._timeScaleInterpolant = null;
		this._weightInterpolant = null;
		this.loop = LoopRepeat;
		this._loopCount = -1; // global mixer time when the action is to be started
		// it's set back to 'null' upon start of the action

		this._startTime = null; // scaled local time of the action
		// gets clamped or wrapped to 0..clip.duration according to loop

		this.time = 0;
		this.timeScale = 1;
		this._effectiveTimeScale = 1;
		this.weight = 1;
		this._effectiveWeight = 1;
		this.repetitions = Infinity; // no. of repetitions when looping

		this.paused = false; // true -> zero effective time scale

		this.enabled = true; // false -> zero effective weight

		this.clampWhenFinished = false; // keep feeding the last frame?

		this.zeroSlopeAtStart = true; // for smooth interpolation w/o separate

		this.zeroSlopeAtEnd = true; // clips for start, loop and end
	} // State & Scheduling


	play() {
		this._mixer._activateAction(this);

		return this;
	}

	stop() {
		this._mixer._deactivateAction(this);

		return this.reset();
	}

	reset() {
		this.paused = false;
		this.enabled = true;
		this.time = 0; // restart clip

		this._loopCount = -1; // forget previous loops

		this._startTime = null; // forget scheduling

		return this.stopFading().stopWarping();
	}

	isRunning() {
		return this.enabled && !this.paused && this.timeScale !== 0 && this._startTime === null && this._mixer._isActiveAction(this);
	} // return true when play has been called


	isScheduled() {
		return this._mixer._isActiveAction(this);
	}

	startAt(time) {
		this._startTime = time;
		return this;
	}

	setLoop(mode, repetitions) {
		this.loop = mode;
		this.repetitions = repetitions;
		return this;
	} // Weight
	// set the weight stopping any scheduled fading
	// although .enabled = false yields an effective weight of zero, this
	// method does *not* change .enabled, because it would be confusing


	setEffectiveWeight(weight) {
		this.weight = weight; // note: same logic as when updated at runtime

		this._effectiveWeight = this.enabled ? weight : 0;
		return this.stopFading();
	} // return the weight considering fading and .enabled


	getEffectiveWeight() {
		return this._effectiveWeight;
	}

	fadeIn(duration) {
		return this._scheduleFading(duration, 0, 1);
	}

	fadeOut(duration) {
		return this._scheduleFading(duration, 1, 0);
	}

	crossFadeFrom(fadeOutAction, duration, warp) {
		fadeOutAction.fadeOut(duration);
		this.fadeIn(duration);

		if (warp) {
			const fadeInDuration = this._clip.duration,
						fadeOutDuration = fadeOutAction._clip.duration,
						startEndRatio = fadeOutDuration / fadeInDuration,
						endStartRatio = fadeInDuration / fadeOutDuration;
			fadeOutAction.warp(1.0, startEndRatio, duration);
			this.warp(endStartRatio, 1.0, duration);
		}

		return this;
	}

	crossFadeTo(fadeInAction, duration, warp) {
		return fadeInAction.crossFadeFrom(this, duration, warp);
	}

	stopFading() {
		const weightInterpolant = this._weightInterpolant;

		if (weightInterpolant !== null) {
			this._weightInterpolant = null;

			this._mixer._takeBackControlInterpolant(weightInterpolant);
		}

		return this;
	} // Time Scale Control
	// set the time scale stopping any scheduled warping
	// although .paused = true yields an effective time scale of zero, this
	// method does *not* change .paused, because it would be confusing


	setEffectiveTimeScale(timeScale) {
		this.timeScale = timeScale;
		this._effectiveTimeScale = this.paused ? 0 : timeScale;
		return this.stopWarping();
	} // return the time scale considering warping and .paused


	getEffectiveTimeScale() {
		return this._effectiveTimeScale;
	}

	setDuration(duration) {
		this.timeScale = this._clip.duration / duration;
		return this.stopWarping();
	}

	syncWith(action) {
		this.time = action.time;
		this.timeScale = action.timeScale;
		return this.stopWarping();
	}

	halt(duration) {
		return this.warp(this._effectiveTimeScale, 0, duration);
	}

	warp(startTimeScale, endTimeScale, duration) {
		const mixer = this._mixer,
					now = mixer.time,
					timeScale = this.timeScale;
		let interpolant = this._timeScaleInterpolant;

		if (interpolant === null) {
			interpolant = mixer._lendControlInterpolant();
			this._timeScaleInterpolant = interpolant;
		}

		const times = interpolant.parameterPositions,
					values = interpolant.sampleValues;
		times[0] = now;
		times[1] = now + duration;
		values[0] = startTimeScale / timeScale;
		values[1] = endTimeScale / timeScale;
		return this;
	}

	stopWarping() {
		const timeScaleInterpolant = this._timeScaleInterpolant;

		if (timeScaleInterpolant !== null) {
			this._timeScaleInterpolant = null;

			this._mixer._takeBackControlInterpolant(timeScaleInterpolant);
		}

		return this;
	} // Object Accessors


	getMixer() {
		return this._mixer;
	}

	getClip() {
		return this._clip;
	}

	getRoot() {
		return this._localRoot || this._mixer._root;
	} // Interna


	_update(time, deltaTime, timeDirection, accuIndex) {
		// called by the mixer
		if (!this.enabled) {
			// call ._updateWeight() to update ._effectiveWeight
			this._updateWeight(time);

			return;
		}

		const startTime = this._startTime;

		if (startTime !== null) {
			// check for scheduled start of action
			const timeRunning = (time - startTime) * timeDirection;

			if (timeRunning < 0 || timeDirection === 0) {
				return; // yet to come / don't decide when delta = 0
			} // start


			this._startTime = null; // unschedule

			deltaTime = timeDirection * timeRunning;
		} // apply time scale and advance time


		deltaTime *= this._updateTimeScale(time);

		const clipTime = this._updateTime(deltaTime); // note: _updateTime may disable the action resulting in
		// an effective weight of 0


		const weight = this._updateWeight(time);

		if (weight > 0) {
			const interpolants = this._interpolants;
			const propertyMixers = this._propertyBindings;

			switch (this.blendMode) {
				case AdditiveAnimationBlendMode:
					for (let j = 0, m = interpolants.length; j !== m; ++j) {
						interpolants[j].evaluate(clipTime);
						propertyMixers[j].accumulateAdditive(weight);
					}

					break;

				case NormalAnimationBlendMode:
				default:
					for (let j = 0, m = interpolants.length; j !== m; ++j) {
						interpolants[j].evaluate(clipTime);
						propertyMixers[j].accumulate(accuIndex, weight);
					}

			}
		}
	}

	_updateWeight(time) {
		let weight = 0;

		if (this.enabled) {
			weight = this.weight;
			const interpolant = this._weightInterpolant;

			if (interpolant !== null) {
				const interpolantValue = interpolant.evaluate(time)[0];
				weight *= interpolantValue;

				if (time > interpolant.parameterPositions[1]) {
					this.stopFading();

					if (interpolantValue === 0) {
						// faded out, disable
						this.enabled = false;
					}
				}
			}
		}

		this._effectiveWeight = weight;
		return weight;
	}

	_updateTimeScale(time) {
		let timeScale = 0;

		if (!this.paused) {
			timeScale = this.timeScale;
			const interpolant = this._timeScaleInterpolant;

			if (interpolant !== null) {
				const interpolantValue = interpolant.evaluate(time)[0];
				timeScale *= interpolantValue;

				if (time > interpolant.parameterPositions[1]) {
					this.stopWarping();

					if (timeScale === 0) {
						// motion has halted, pause
						this.paused = true;
					} else {
						// warp done - apply final time scale
						this.timeScale = timeScale;
					}
				}
			}
		}

		this._effectiveTimeScale = timeScale;
		return timeScale;
	}

	_updateTime(deltaTime) {
		const duration = this._clip.duration;
		const loop = this.loop;
		let time = this.time + deltaTime;
		let loopCount = this._loopCount;
		const pingPong = loop === LoopPingPong;

		if (deltaTime === 0) {
			if (loopCount === -1) return time;
			return pingPong && (loopCount & 1) === 1 ? duration - time : time;
		}

		if (loop === LoopOnce) {
			if (loopCount === -1) {
				// just started
				this._loopCount = 0;

				this._setEndings(true, true, false);
			}

			handle_stop: {
				if (time >= duration) {
					time = duration;
				} else if (time < 0) {
					time = 0;
				} else {
					this.time = time;
					break handle_stop;
				}

				if (this.clampWhenFinished) this.paused = true;else this.enabled = false;
				this.time = time;

				this._mixer.dispatchEvent({
					type: 'finished',
					action: this,
					direction: deltaTime < 0 ? -1 : 1
				});
			}
		} else {
			// repetitive Repeat or PingPong
			if (loopCount === -1) {
				// just started
				if (deltaTime >= 0) {
					loopCount = 0;

					this._setEndings(true, this.repetitions === 0, pingPong);
				} else {
					// when looping in reverse direction, the initial
					// transition through zero counts as a repetition,
					// so leave loopCount at -1
					this._setEndings(this.repetitions === 0, true, pingPong);
				}
			}

			if (time >= duration || time < 0) {
				// wrap around
				const loopDelta = Math.floor(time / duration); // signed

				time -= duration * loopDelta;
				loopCount += Math.abs(loopDelta);
				const pending = this.repetitions - loopCount;

				if (pending <= 0) {
					// have to stop (switch state, clamp time, fire event)
					if (this.clampWhenFinished) this.paused = true;else this.enabled = false;
					time = deltaTime > 0 ? duration : 0;
					this.time = time;

					this._mixer.dispatchEvent({
						type: 'finished',
						action: this,
						direction: deltaTime > 0 ? 1 : -1
					});
				} else {
					// keep running
					if (pending === 1) {
						// entering the last round
						const atStart = deltaTime < 0;

						this._setEndings(atStart, !atStart, pingPong);
					} else {
						this._setEndings(false, false, pingPong);
					}

					this._loopCount = loopCount;
					this.time = time;

					this._mixer.dispatchEvent({
						type: 'loop',
						action: this,
						loopDelta: loopDelta
					});
				}
			} else {
				this.time = time;
			}

			if (pingPong && (loopCount & 1) === 1) {
				// invert time for the "pong round"
				return duration - time;
			}
		}

		return time;
	}

	_setEndings(atStart, atEnd, pingPong) {
		const settings = this._interpolantSettings;

		if (pingPong) {
			settings.endingStart = ZeroSlopeEnding;
			settings.endingEnd = ZeroSlopeEnding;
		} else {
			// assuming for LoopOnce atStart == atEnd == true
			if (atStart) {
				settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;
			} else {
				settings.endingStart = WrapAroundEnding;
			}

			if (atEnd) {
				settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;
			} else {
				settings.endingEnd = WrapAroundEnding;
			}
		}
	}

	_scheduleFading(duration, weightNow, weightThen) {
		const mixer = this._mixer,
					now = mixer.time;
		let interpolant = this._weightInterpolant;

		if (interpolant === null) {
			interpolant = mixer._lendControlInterpolant();
			this._weightInterpolant = interpolant;
		}

		const times = interpolant.parameterPositions,
					values = interpolant.sampleValues;
		times[0] = now;
		values[0] = weightNow;
		times[1] = now + duration;
		values[1] = weightThen;
		return this;
	}

}

class AnimationMixer extends EventDispatcher {
	constructor(root) {
		super();
		this._root = root;

		this._initMemoryManager();

		this._accuIndex = 0;
		this.time = 0;
		this.timeScale = 1.0;
	}

	_bindAction(action, prototypeAction) {
		const root = action._localRoot || this._root,
					tracks = action._clip.tracks,
					nTracks = tracks.length,
					bindings = action._propertyBindings,
					interpolants = action._interpolants,
					rootUuid = root.uuid,
					bindingsByRoot = this._bindingsByRootAndName;
		let bindingsByName = bindingsByRoot[rootUuid];

		if (bindingsByName === undefined) {
			bindingsByName = {};
			bindingsByRoot[rootUuid] = bindingsByName;
		}

		for (let i = 0; i !== nTracks; ++i) {
			const track = tracks[i],
						trackName = track.name;
			let binding = bindingsByName[trackName];

			if (binding !== undefined) {
				++binding.referenceCount;
				bindings[i] = binding;
			} else {
				binding = bindings[i];

				if (binding !== undefined) {
					// existing binding, make sure the cache knows
					if (binding._cacheIndex === null) {
						++binding.referenceCount;

						this._addInactiveBinding(binding, rootUuid, trackName);
					}

					continue;
				}

				const path = prototypeAction && prototypeAction._propertyBindings[i].binding.parsedPath;
				binding = new PropertyMixer(PropertyBinding.create(root, trackName, path), track.ValueTypeName, track.getValueSize());
				++binding.referenceCount;

				this._addInactiveBinding(binding, rootUuid, trackName);

				bindings[i] = binding;
			}

			interpolants[i].resultBuffer = binding.buffer;
		}
	}

	_activateAction(action) {
		if (!this._isActiveAction(action)) {
			if (action._cacheIndex === null) {
				// this action has been forgotten by the cache, but the user
				// appears to be still using it -> rebind
				const rootUuid = (action._localRoot || this._root).uuid,
							clipUuid = action._clip.uuid,
							actionsForClip = this._actionsByClip[clipUuid];

				this._bindAction(action, actionsForClip && actionsForClip.knownActions[0]);

				this._addInactiveAction(action, clipUuid, rootUuid);
			}

			const bindings = action._propertyBindings; // increment reference counts / sort out state

			for (let i = 0, n = bindings.length; i !== n; ++i) {
				const binding = bindings[i];

				if (binding.useCount++ === 0) {
					this._lendBinding(binding);

					binding.saveOriginalState();
				}
			}

			this._lendAction(action);
		}
	}

	_deactivateAction(action) {
		if (this._isActiveAction(action)) {
			const bindings = action._propertyBindings; // decrement reference counts / sort out state

			for (let i = 0, n = bindings.length; i !== n; ++i) {
				const binding = bindings[i];

				if (--binding.useCount === 0) {
					binding.restoreOriginalState();

					this._takeBackBinding(binding);
				}
			}

			this._takeBackAction(action);
		}
	} // Memory manager


	_initMemoryManager() {
		this._actions = []; // 'nActiveActions' followed by inactive ones

		this._nActiveActions = 0;
		this._actionsByClip = {}; // inside:
		// {
		// 	knownActions: Array< AnimationAction > - used as prototypes
		// 	actionByRoot: AnimationAction - lookup
		// }

		this._bindings = []; // 'nActiveBindings' followed by inactive ones

		this._nActiveBindings = 0;
		this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >

		this._controlInterpolants = []; // same game as above

		this._nActiveControlInterpolants = 0;
		const scope = this;
		this.stats = {
			actions: {
				get total() {
					return scope._actions.length;
				},

				get inUse() {
					return scope._nActiveActions;
				}

			},
			bindings: {
				get total() {
					return scope._bindings.length;
				},

				get inUse() {
					return scope._nActiveBindings;
				}

			},
			controlInterpolants: {
				get total() {
					return scope._controlInterpolants.length;
				},

				get inUse() {
					return scope._nActiveControlInterpolants;
				}

			}
		};
	} // Memory management for AnimationAction objects


	_isActiveAction(action) {
		const index = action._cacheIndex;
		return index !== null && index < this._nActiveActions;
	}

	_addInactiveAction(action, clipUuid, rootUuid) {
		const actions = this._actions,
					actionsByClip = this._actionsByClip;
		let actionsForClip = actionsByClip[clipUuid];

		if (actionsForClip === undefined) {
			actionsForClip = {
				knownActions: [action],
				actionByRoot: {}
			};
			action._byClipCacheIndex = 0;
			actionsByClip[clipUuid] = actionsForClip;
		} else {
			const knownActions = actionsForClip.knownActions;
			action._byClipCacheIndex = knownActions.length;
			knownActions.push(action);
		}

		action._cacheIndex = actions.length;
		actions.push(action);
		actionsForClip.actionByRoot[rootUuid] = action;
	}

	_removeInactiveAction(action) {
		const actions = this._actions,
					lastInactiveAction = actions[actions.length - 1],
					cacheIndex = action._cacheIndex;
		lastInactiveAction._cacheIndex = cacheIndex;
		actions[cacheIndex] = lastInactiveAction;
		actions.pop();
		action._cacheIndex = null;
		const clipUuid = action._clip.uuid,
					actionsByClip = this._actionsByClip,
					actionsForClip = actionsByClip[clipUuid],
					knownActionsForClip = actionsForClip.knownActions,
					lastKnownAction = knownActionsForClip[knownActionsForClip.length - 1],
					byClipCacheIndex = action._byClipCacheIndex;
		lastKnownAction._byClipCacheIndex = byClipCacheIndex;
		knownActionsForClip[byClipCacheIndex] = lastKnownAction;
		knownActionsForClip.pop();
		action._byClipCacheIndex = null;
		const actionByRoot = actionsForClip.actionByRoot,
					rootUuid = (action._localRoot || this._root).uuid;
		delete actionByRoot[rootUuid];

		if (knownActionsForClip.length === 0) {
			delete actionsByClip[clipUuid];
		}

		this._removeInactiveBindingsForAction(action);
	}

	_removeInactiveBindingsForAction(action) {
		const bindings = action._propertyBindings;

		for (let i = 0, n = bindings.length; i !== n; ++i) {
			const binding = bindings[i];

			if (--binding.referenceCount === 0) {
				this._removeInactiveBinding(binding);
			}
		}
	}

	_lendAction(action) {
		// [ active actions |	inactive actions	]
		// [	active actions >| inactive actions ]
		//								 s				a
		//									<-swap->
		//								 a				s
		const actions = this._actions,
					prevIndex = action._cacheIndex,
					lastActiveIndex = this._nActiveActions++,
					firstInactiveAction = actions[lastActiveIndex];
		action._cacheIndex = lastActiveIndex;
		actions[lastActiveIndex] = action;
		firstInactiveAction._cacheIndex = prevIndex;
		actions[prevIndex] = firstInactiveAction;
	}

	_takeBackAction(action) {
		// [	active actions	| inactive actions ]
		// [ active actions |< inactive actions	]
		//				a				s
		//				 <-swap->
		//				s				a
		const actions = this._actions,
					prevIndex = action._cacheIndex,
					firstInactiveIndex = --this._nActiveActions,
					lastActiveAction = actions[firstInactiveIndex];
		action._cacheIndex = firstInactiveIndex;
		actions[firstInactiveIndex] = action;
		lastActiveAction._cacheIndex = prevIndex;
		actions[prevIndex] = lastActiveAction;
	} // Memory management for PropertyMixer objects


	_addInactiveBinding(binding, rootUuid, trackName) {
		const bindingsByRoot = this._bindingsByRootAndName,
					bindings = this._bindings;
		let bindingByName = bindingsByRoot[rootUuid];

		if (bindingByName === undefined) {
			bindingByName = {};
			bindingsByRoot[rootUuid] = bindingByName;
		}

		bindingByName[trackName] = binding;
		binding._cacheIndex = bindings.length;
		bindings.push(binding);
	}

	_removeInactiveBinding(binding) {
		const bindings = this._bindings,
					propBinding = binding.binding,
					rootUuid = propBinding.rootNode.uuid,
					trackName = propBinding.path,
					bindingsByRoot = this._bindingsByRootAndName,
					bindingByName = bindingsByRoot[rootUuid],
					lastInactiveBinding = bindings[bindings.length - 1],
					cacheIndex = binding._cacheIndex;
		lastInactiveBinding._cacheIndex = cacheIndex;
		bindings[cacheIndex] = lastInactiveBinding;
		bindings.pop();
		delete bindingByName[trackName];

		if (Object.keys(bindingByName).length === 0) {
			delete bindingsByRoot[rootUuid];
		}
	}

	_lendBinding(binding) {
		const bindings = this._bindings,
					prevIndex = binding._cacheIndex,
					lastActiveIndex = this._nActiveBindings++,
					firstInactiveBinding = bindings[lastActiveIndex];
		binding._cacheIndex = lastActiveIndex;
		bindings[lastActiveIndex] = binding;
		firstInactiveBinding._cacheIndex = prevIndex;
		bindings[prevIndex] = firstInactiveBinding;
	}

	_takeBackBinding(binding) {
		const bindings = this._bindings,
					prevIndex = binding._cacheIndex,
					firstInactiveIndex = --this._nActiveBindings,
					lastActiveBinding = bindings[firstInactiveIndex];
		binding._cacheIndex = firstInactiveIndex;
		bindings[firstInactiveIndex] = binding;
		lastActiveBinding._cacheIndex = prevIndex;
		bindings[prevIndex] = lastActiveBinding;
	} // Memory management of Interpolants for weight and time scale


	_lendControlInterpolant() {
		const interpolants = this._controlInterpolants,
					lastActiveIndex = this._nActiveControlInterpolants++;
		let interpolant = interpolants[lastActiveIndex];

		if (interpolant === undefined) {
			interpolant = new LinearInterpolant(new Float32Array(2), new Float32Array(2), 1, this._controlInterpolantsResultBuffer);
			interpolant.__cacheIndex = lastActiveIndex;
			interpolants[lastActiveIndex] = interpolant;
		}

		return interpolant;
	}

	_takeBackControlInterpolant(interpolant) {
		const interpolants = this._controlInterpolants,
					prevIndex = interpolant.__cacheIndex,
					firstInactiveIndex = --this._nActiveControlInterpolants,
					lastActiveInterpolant = interpolants[firstInactiveIndex];
		interpolant.__cacheIndex = firstInactiveIndex;
		interpolants[firstInactiveIndex] = interpolant;
		lastActiveInterpolant.__cacheIndex = prevIndex;
		interpolants[prevIndex] = lastActiveInterpolant;
	} // return an action for a clip optionally using a custom root target
	// object (this method allocates a lot of dynamic memory in case a
	// previously unknown clip/root combination is specified)


	clipAction(clip, optionalRoot, blendMode) {
		const root = optionalRoot || this._root,
					rootUuid = root.uuid;
		let clipObject = typeof clip === 'string' ? AnimationClip.findByName(root, clip) : clip;
		const clipUuid = clipObject !== null ? clipObject.uuid : clip;
		const actionsForClip = this._actionsByClip[clipUuid];
		let prototypeAction = null;

		if (blendMode === undefined) {
			if (clipObject !== null) {
				blendMode = clipObject.blendMode;
			} else {
				blendMode = NormalAnimationBlendMode;
			}
		}

		if (actionsForClip !== undefined) {
			const existingAction = actionsForClip.actionByRoot[rootUuid];

			if (existingAction !== undefined && existingAction.blendMode === blendMode) {
				return existingAction;
			} // we know the clip, so we don't have to parse all
			// the bindings again but can just copy


			prototypeAction = actionsForClip.knownActions[0]; // also, take the clip from the prototype action

			if (clipObject === null) clipObject = prototypeAction._clip;
		} // clip must be known when specified via string


		if (clipObject === null) return null; // allocate all resources required to run it

		const newAction = new AnimationAction(this, clipObject, optionalRoot, blendMode);

		this._bindAction(newAction, prototypeAction); // and make the action known to the memory manager


		this._addInactiveAction(newAction, clipUuid, rootUuid);

		return newAction;
	} // get an existing action


	existingAction(clip, optionalRoot) {
		const root = optionalRoot || this._root,
					rootUuid = root.uuid,
					clipObject = typeof clip === 'string' ? AnimationClip.findByName(root, clip) : clip,
					clipUuid = clipObject ? clipObject.uuid : clip,
					actionsForClip = this._actionsByClip[clipUuid];

		if (actionsForClip !== undefined) {
			return actionsForClip.actionByRoot[rootUuid] || null;
		}

		return null;
	} // deactivates all previously scheduled actions


	stopAllAction() {
		const actions = this._actions,
					nActions = this._nActiveActions;

		for (let i = nActions - 1; i >= 0; --i) {
			actions[i].stop();
		}

		return this;
	} // advance the time and update apply the animation


	update(deltaTime) {
		deltaTime *= this.timeScale;
		const actions = this._actions,
					nActions = this._nActiveActions,
					time = this.time += deltaTime,
					timeDirection = Math.sign(deltaTime),
					accuIndex = this._accuIndex ^= 1; // run active actions

		for (let i = 0; i !== nActions; ++i) {
			const action = actions[i];

			action._update(time, deltaTime, timeDirection, accuIndex);
		} // update scene graph


		const bindings = this._bindings,
					nBindings = this._nActiveBindings;

		for (let i = 0; i !== nBindings; ++i) {
			bindings[i].apply(accuIndex);
		}

		return this;
	} // Allows you to seek to a specific time in an animation.


	setTime(timeInSeconds) {
		this.time = 0; // Zero out time attribute for AnimationMixer object;

		for (let i = 0; i < this._actions.length; i++) {
			this._actions[i].time = 0; // Zero out time attribute for all associated AnimationAction objects.
		}

		return this.update(timeInSeconds); // Update used to set exact time. Returns "this" AnimationMixer object.
	} // return this mixer's root target object


	getRoot() {
		return this._root;
	} // free all resources specific to a particular clip


	uncacheClip(clip) {
		const actions = this._actions,
					clipUuid = clip.uuid,
					actionsByClip = this._actionsByClip,
					actionsForClip = actionsByClip[clipUuid];

		if (actionsForClip !== undefined) {
			// note: just calling _removeInactiveAction would mess up the
			// iteration state and also require updating the state we can
			// just throw away
			const actionsToRemove = actionsForClip.knownActions;

			for (let i = 0, n = actionsToRemove.length; i !== n; ++i) {
				const action = actionsToRemove[i];

				this._deactivateAction(action);

				const cacheIndex = action._cacheIndex,
							lastInactiveAction = actions[actions.length - 1];
				action._cacheIndex = null;
				action._byClipCacheIndex = null;
				lastInactiveAction._cacheIndex = cacheIndex;
				actions[cacheIndex] = lastInactiveAction;
				actions.pop();

				this._removeInactiveBindingsForAction(action);
			}

			delete actionsByClip[clipUuid];
		}
	} // free all resources specific to a particular root target object


	uncacheRoot(root) {
		const rootUuid = root.uuid,
					actionsByClip = this._actionsByClip;

		for (const clipUuid in actionsByClip) {
			const actionByRoot = actionsByClip[clipUuid].actionByRoot,
						action = actionByRoot[rootUuid];

			if (action !== undefined) {
				this._deactivateAction(action);

				this._removeInactiveAction(action);
			}
		}

		const bindingsByRoot = this._bindingsByRootAndName,
					bindingByName = bindingsByRoot[rootUuid];

		if (bindingByName !== undefined) {
			for (const trackName in bindingByName) {
				const binding = bindingByName[trackName];
				binding.restoreOriginalState();

				this._removeInactiveBinding(binding);
			}
		}
	} // remove a targeted clip from the cache


	uncacheAction(clip, optionalRoot) {
		const action = this.existingAction(clip, optionalRoot);

		if (action !== null) {
			this._deactivateAction(action);

			this._removeInactiveAction(action);
		}
	}

}

AnimationMixer.prototype._controlInterpolantsResultBuffer = new Float32Array(1);

class Uniform {
	constructor(value) {
		if (typeof value === 'string') {
			console.warn('THREE.Uniform: Type parameter is no longer needed.');
			value = arguments[1];
		}

		this.value = value;
	}

	clone() {
		return new Uniform(this.value.clone === undefined ? this.value : this.value.clone());
	}

}

class InstancedInterleavedBuffer extends InterleavedBuffer {
	constructor(array, stride, meshPerAttribute = 1) {
		super(array, stride);
		this.meshPerAttribute = meshPerAttribute;
	}

	copy(source) {
		super.copy(source);
		this.meshPerAttribute = source.meshPerAttribute;
		return this;
	}

	clone(data) {
		const ib = super.clone(data);
		ib.meshPerAttribute = this.meshPerAttribute;
		return ib;
	}

	toJSON(data) {
		const json = super.toJSON(data);
		json.isInstancedInterleavedBuffer = true;
		json.meshPerAttribute = this.meshPerAttribute;
		return json;
	}

}

InstancedInterleavedBuffer.prototype.isInstancedInterleavedBuffer = true;

class GLBufferAttribute {
	constructor(buffer, type, itemSize, elementSize, count) {
		this.buffer = buffer;
		this.type = type;
		this.itemSize = itemSize;
		this.elementSize = elementSize;
		this.count = count;
		this.version = 0;
	}

	set needsUpdate(value) {
		if (value === true) this.version++;
	}

	setBuffer(buffer) {
		this.buffer = buffer;
		return this;
	}

	setType(type, elementSize) {
		this.type = type;
		this.elementSize = elementSize;
		return this;
	}

	setItemSize(itemSize) {
		this.itemSize = itemSize;
		return this;
	}

	setCount(count) {
		this.count = count;
		return this;
	}

}

GLBufferAttribute.prototype.isGLBufferAttribute = true;

class Raycaster {
	constructor(origin, direction, near = 0, far = Infinity) {
		this.ray = new Ray(origin, direction); // direction is assumed to be normalized (for accurate distance calculations)

		this.near = near;
		this.far = far;
		this.camera = null;
		this.layers = new Layers();
		this.params = {
			Mesh: {},
			Line: {
				threshold: 1
			},
			LOD: {},
			Points: {
				threshold: 1
			},
			Sprite: {}
		};
	}

	set(origin, direction) {
		// direction is assumed to be normalized (for accurate distance calculations)
		this.ray.set(origin, direction);
	}

	setFromCamera(coords, camera) {
		if (camera && camera.isPerspectiveCamera) {
			this.ray.origin.setFromMatrixPosition(camera.matrixWorld);
			this.ray.direction.set(coords.x, coords.y, 0.5).unproject(camera).sub(this.ray.origin).normalize();
			this.camera = camera;
		} else if (camera && camera.isOrthographicCamera) {
			this.ray.origin.set(coords.x, coords.y, (camera.near + camera.far) / (camera.near - camera.far)).unproject(camera); // set origin in plane of camera

			this.ray.direction.set(0, 0, -1).transformDirection(camera.matrixWorld);
			this.camera = camera;
		} else {
			console.error('THREE.Raycaster: Unsupported camera type: ' + camera.type);
		}
	}

	intersectObject(object, recursive = true, intersects = []) {
		intersectObject(object, this, intersects, recursive);
		intersects.sort(ascSort);
		return intersects;
	}

	intersectObjects(objects, recursive = true, intersects = []) {
		for (let i = 0, l = objects.length; i < l; i++) {
			intersectObject(objects[i], this, intersects, recursive);
		}

		intersects.sort(ascSort);
		return intersects;
	}

}

function ascSort(a, b) {
	return a.distance - b.distance;
}

function intersectObject(object, raycaster, intersects, recursive) {
	if (object.layers.test(raycaster.layers)) {
		object.raycast(raycaster, intersects);
	}

	if (recursive === true) {
		const children = object.children;

		for (let i = 0, l = children.length; i < l; i++) {
			intersectObject(children[i], raycaster, intersects, true);
		}
	}
}

/**
 * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
 *
 * The polar angle (phi) is measured from the positive y-axis. The positive y-axis is up.
 * The azimuthal angle (theta) is measured from the positive z-axis.
 */

class Spherical {
	constructor(radius = 1, phi = 0, theta = 0) {
		this.radius = radius;
		this.phi = phi; // polar angle

		this.theta = theta; // azimuthal angle

		return this;
	}

	set(radius, phi, theta) {
		this.radius = radius;
		this.phi = phi;
		this.theta = theta;
		return this;
	}

	copy(other) {
		this.radius = other.radius;
		this.phi = other.phi;
		this.theta = other.theta;
		return this;
	} // restrict phi to be betwee EPS and PI-EPS


	makeSafe() {
		const EPS = 0.000001;
		this.phi = Math.max(EPS, Math.min(Math.PI - EPS, this.phi));
		return this;
	}

	setFromVector3(v) {
		return this.setFromCartesianCoords(v.x, v.y, v.z);
	}

	setFromCartesianCoords(x, y, z) {
		this.radius = Math.sqrt(x * x + y * y + z * z);

		if (this.radius === 0) {
			this.theta = 0;
			this.phi = 0;
		} else {
			this.theta = Math.atan2(x, z);
			this.phi = Math.acos(clamp(y / this.radius, -1, 1));
		}

		return this;
	}

	clone() {
		return new this.constructor().copy(this);
	}

}

/**
 * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
 */
class Cylindrical {
	constructor(radius = 1, theta = 0, y = 0) {
		this.radius = radius; // distance from the origin to a point in the x-z plane

		this.theta = theta; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis

		this.y = y; // height above the x-z plane

		return this;
	}

	set(radius, theta, y) {
		this.radius = radius;
		this.theta = theta;
		this.y = y;
		return this;
	}

	copy(other) {
		this.radius = other.radius;
		this.theta = other.theta;
		this.y = other.y;
		return this;
	}

	setFromVector3(v) {
		return this.setFromCartesianCoords(v.x, v.y, v.z);
	}

	setFromCartesianCoords(x, y, z) {
		this.radius = Math.sqrt(x * x + z * z);
		this.theta = Math.atan2(x, z);
		this.y = y;
		return this;
	}

	clone() {
		return new this.constructor().copy(this);
	}

}

const _vector$4 = /*@__PURE__*/new Vector2();

class Box2 {
	constructor(min = new Vector2(+Infinity, +Infinity), max = new Vector2(-Infinity, -Infinity)) {
		this.min = min;
		this.max = max;
	}

	set(min, max) {
		this.min.copy(min);
		this.max.copy(max);
		return this;
	}

	setFromPoints(points) {
		this.makeEmpty();

		for (let i = 0, il = points.length; i < il; i++) {
			this.expandByPoint(points[i]);
		}

		return this;
	}

	setFromCenterAndSize(center, size) {
		const halfSize = _vector$4.copy(size).multiplyScalar(0.5);

		this.min.copy(center).sub(halfSize);
		this.max.copy(center).add(halfSize);
		return this;
	}

	clone() {
		return new this.constructor().copy(this);
	}

	copy(box) {
		this.min.copy(box.min);
		this.max.copy(box.max);
		return this;
	}

	makeEmpty() {
		this.min.x = this.min.y = +Infinity;
		this.max.x = this.max.y = -Infinity;
		return this;
	}

	isEmpty() {
		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
		return this.max.x < this.min.x || this.max.y < this.min.y;
	}

	getCenter(target) {
		return this.isEmpty() ? target.set(0, 0) : target.addVectors(this.min, this.max).multiplyScalar(0.5);
	}

	getSize(target) {
		return this.isEmpty() ? target.set(0, 0) : target.subVectors(this.max, this.min);
	}

	expandByPoint(point) {
		this.min.min(point);
		this.max.max(point);
		return this;
	}

	expandByVector(vector) {
		this.min.sub(vector);
		this.max.add(vector);
		return this;
	}

	expandByScalar(scalar) {
		this.min.addScalar(-scalar);
		this.max.addScalar(scalar);
		return this;
	}

	containsPoint(point) {
		return point.x < this.min.x || point.x > this.max.x || point.y < this.min.y || point.y > this.max.y ? false : true;
	}

	containsBox(box) {
		return this.min.x <= box.min.x && box.max.x <= this.max.x && this.min.y <= box.min.y && box.max.y <= this.max.y;
	}

	getParameter(point, target) {
		// This can potentially have a divide by zero if the box
		// has a size dimension of 0.
		return target.set((point.x - this.min.x) / (this.max.x - this.min.x), (point.y - this.min.y) / (this.max.y - this.min.y));
	}

	intersectsBox(box) {
		// using 4 splitting planes to rule out intersections
		return box.max.x < this.min.x || box.min.x > this.max.x || box.max.y < this.min.y || box.min.y > this.max.y ? false : true;
	}

	clampPoint(point, target) {
		return target.copy(point).clamp(this.min, this.max);
	}

	distanceToPoint(point) {
		const clampedPoint = _vector$4.copy(point).clamp(this.min, this.max);

		return clampedPoint.sub(point).length();
	}

	intersect(box) {
		this.min.max(box.min);
		this.max.min(box.max);
		return this;
	}

	union(box) {
		this.min.min(box.min);
		this.max.max(box.max);
		return this;
	}

	translate(offset) {
		this.min.add(offset);
		this.max.add(offset);
		return this;
	}

	equals(box) {
		return box.min.equals(this.min) && box.max.equals(this.max);
	}

}

Box2.prototype.isBox2 = true;

const _startP = /*@__PURE__*/new Vector3();

const _startEnd = /*@__PURE__*/new Vector3();

class Line3 {
	constructor(start = new Vector3(), end = new Vector3()) {
		this.start = start;
		this.end = end;
	}

	set(start, end) {
		this.start.copy(start);
		this.end.copy(end);
		return this;
	}

	copy(line) {
		this.start.copy(line.start);
		this.end.copy(line.end);
		return this;
	}

	getCenter(target) {
		return target.addVectors(this.start, this.end).multiplyScalar(0.5);
	}

	delta(target) {
		return target.subVectors(this.end, this.start);
	}

	distanceSq() {
		return this.start.distanceToSquared(this.end);
	}

	distance() {
		return this.start.distanceTo(this.end);
	}

	at(t, target) {
		return this.delta(target).multiplyScalar(t).add(this.start);
	}

	closestPointToPointParameter(point, clampToLine) {
		_startP.subVectors(point, this.start);

		_startEnd.subVectors(this.end, this.start);

		const startEnd2 = _startEnd.dot(_startEnd);

		const startEnd_startP = _startEnd.dot(_startP);

		let t = startEnd_startP / startEnd2;

		if (clampToLine) {
			t = clamp(t, 0, 1);
		}

		return t;
	}

	closestPointToPoint(point, clampToLine, target) {
		const t = this.closestPointToPointParameter(point, clampToLine);
		return this.delta(target).multiplyScalar(t).add(this.start);
	}

	applyMatrix4(matrix) {
		this.start.applyMatrix4(matrix);
		this.end.applyMatrix4(matrix);
		return this;
	}

	equals(line) {
		return line.start.equals(this.start) && line.end.equals(this.end);
	}

	clone() {
		return new this.constructor().copy(this);
	}

}

const _vector$3 = /*@__PURE__*/new Vector3();

class SpotLightHelper extends Object3D {
	constructor(light, color) {
		super();
		this.light = light;
		this.light.updateMatrixWorld();
		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;
		this.color = color;
		const geometry = new BufferGeometry();
		const positions = [0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, -1, 1];

		for (let i = 0, j = 1, l = 32; i < l; i++, j++) {
			const p1 = i / l * Math.PI * 2;
			const p2 = j / l * Math.PI * 2;
			positions.push(Math.cos(p1), Math.sin(p1), 1, Math.cos(p2), Math.sin(p2), 1);
		}

		geometry.setAttribute('position', new Float32BufferAttribute(positions, 3));
		const material = new LineBasicMaterial({
			fog: false,
			toneMapped: false
		});
		this.cone = new LineSegments(geometry, material);
		this.add(this.cone);
		this.update();
	}

	dispose() {
		this.cone.geometry.dispose();
		this.cone.material.dispose();
	}

	update() {
		this.light.updateMatrixWorld();
		const coneLength = this.light.distance ? this.light.distance : 1000;
		const coneWidth = coneLength * Math.tan(this.light.angle);
		this.cone.scale.set(coneWidth, coneWidth, coneLength);

		_vector$3.setFromMatrixPosition(this.light.target.matrixWorld);

		this.cone.lookAt(_vector$3);

		if (this.color !== undefined) {
			this.cone.material.color.set(this.color);
		} else {
			this.cone.material.color.copy(this.light.color);
		}
	}

}

const _vector$2 = /*@__PURE__*/new Vector3();

const _boneMatrix = /*@__PURE__*/new Matrix4();

const _matrixWorldInv = /*@__PURE__*/new Matrix4();

class SkeletonHelper extends LineSegments {
	constructor(object) {
		const bones = getBoneList(object);
		const geometry = new BufferGeometry();
		const vertices = [];
		const colors = [];
		const color1 = new Color(0, 0, 1);
		const color2 = new Color(0, 1, 0);

		for (let i = 0; i < bones.length; i++) {
			const bone = bones[i];

			if (bone.parent && bone.parent.isBone) {
				vertices.push(0, 0, 0);
				vertices.push(0, 0, 0);
				colors.push(color1.r, color1.g, color1.b);
				colors.push(color2.r, color2.g, color2.b);
			}
		}

		geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
		const material = new LineBasicMaterial({
			vertexColors: true,
			depthTest: false,
			depthWrite: false,
			toneMapped: false,
			transparent: true
		});
		super(geometry, material);
		this.type = 'SkeletonHelper';
		this.isSkeletonHelper = true;
		this.root = object;
		this.bones = bones;
		this.matrix = object.matrixWorld;
		this.matrixAutoUpdate = false;
	}

	updateMatrixWorld(force) {
		const bones = this.bones;
		const geometry = this.geometry;
		const position = geometry.getAttribute('position');

		_matrixWorldInv.copy(this.root.matrixWorld).invert();

		for (let i = 0, j = 0; i < bones.length; i++) {
			const bone = bones[i];

			if (bone.parent && bone.parent.isBone) {
				_boneMatrix.multiplyMatrices(_matrixWorldInv, bone.matrixWorld);

				_vector$2.setFromMatrixPosition(_boneMatrix);

				position.setXYZ(j, _vector$2.x, _vector$2.y, _vector$2.z);

				_boneMatrix.multiplyMatrices(_matrixWorldInv, bone.parent.matrixWorld);

				_vector$2.setFromMatrixPosition(_boneMatrix);

				position.setXYZ(j + 1, _vector$2.x, _vector$2.y, _vector$2.z);
				j += 2;
			}
		}

		geometry.getAttribute('position').needsUpdate = true;
		super.updateMatrixWorld(force);
	}

}

function getBoneList(object) {
	const boneList = [];

	if (object && object.isBone) {
		boneList.push(object);
	}

	for (let i = 0; i < object.children.length; i++) {
		boneList.push.apply(boneList, getBoneList(object.children[i]));
	}

	return boneList;
}

class PointLightHelper extends Mesh {
	constructor(light, sphereSize, color) {
		const geometry = new SphereGeometry(sphereSize, 4, 2);
		const material = new MeshBasicMaterial({
			wireframe: true,
			fog: false,
			toneMapped: false
		});
		super(geometry, material);
		this.light = light;
		this.light.updateMatrixWorld();
		this.color = color;
		this.type = 'PointLightHelper';
		this.matrix = this.light.matrixWorld;
		this.matrixAutoUpdate = false;
		this.update();
		/*
		// TODO: delete this comment?
		const distanceGeometry = new THREE.IcosahedronBufferGeometry( 1, 2 );
		const distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );
		this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
		this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );
		const d = light.distance;
		if ( d === 0.0 ) {
			this.lightDistance.visible = false;
		} else {
			this.lightDistance.scale.set( d, d, d );
		}
		this.add( this.lightDistance );
		*/
	}

	dispose() {
		this.geometry.dispose();
		this.material.dispose();
	}

	update() {
		if (this.color !== undefined) {
			this.material.color.set(this.color);
		} else {
			this.material.color.copy(this.light.color);
		}
		/*
		const d = this.light.distance;
			if ( d === 0.0 ) {
				this.lightDistance.visible = false;
			} else {
				this.lightDistance.visible = true;
			this.lightDistance.scale.set( d, d, d );
			}
		*/

	}

}

const _vector$1 = /*@__PURE__*/new Vector3();

const _color1 = /*@__PURE__*/new Color();

const _color2 = /*@__PURE__*/new Color();

class HemisphereLightHelper extends Object3D {
	constructor(light, size, color) {
		super();
		this.light = light;
		this.light.updateMatrixWorld();
		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;
		this.color = color;
		const geometry = new OctahedronGeometry(size);
		geometry.rotateY(Math.PI * 0.5);
		this.material = new MeshBasicMaterial({
			wireframe: true,
			fog: false,
			toneMapped: false
		});
		if (this.color === undefined) this.material.vertexColors = true;
		const position = geometry.getAttribute('position');
		const colors = new Float32Array(position.count * 3);
		geometry.setAttribute('color', new BufferAttribute(colors, 3));
		this.add(new Mesh(geometry, this.material));
		this.update();
	}

	dispose() {
		this.children[0].geometry.dispose();
		this.children[0].material.dispose();
	}

	update() {
		const mesh = this.children[0];

		if (this.color !== undefined) {
			this.material.color.set(this.color);
		} else {
			const colors = mesh.geometry.getAttribute('color');

			_color1.copy(this.light.color);

			_color2.copy(this.light.groundColor);

			for (let i = 0, l = colors.count; i < l; i++) {
				const color = i < l / 2 ? _color1 : _color2;
				colors.setXYZ(i, color.r, color.g, color.b);
			}

			colors.needsUpdate = true;
		}

		mesh.lookAt(_vector$1.setFromMatrixPosition(this.light.matrixWorld).negate());
	}

}

class GridHelper extends LineSegments {
	constructor(size = 10, divisions = 10, color1 = 0x444444, color2 = 0x888888) {
		color1 = new Color(color1);
		color2 = new Color(color2);
		const center = divisions / 2;
		const step = size / divisions;
		const halfSize = size / 2;
		const vertices = [],
					colors = [];

		for (let i = 0, j = 0, k = -halfSize; i <= divisions; i++, k += step) {
			vertices.push(-halfSize, 0, k, halfSize, 0, k);
			vertices.push(k, 0, -halfSize, k, 0, halfSize);
			const color = i === center ? color1 : color2;
			color.toArray(colors, j);
			j += 3;
			color.toArray(colors, j);
			j += 3;
			color.toArray(colors, j);
			j += 3;
			color.toArray(colors, j);
			j += 3;
		}

		const geometry = new BufferGeometry();
		geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
		const material = new LineBasicMaterial({
			vertexColors: true,
			toneMapped: false
		});
		super(geometry, material);
		this.type = 'GridHelper';
	}

}

class PolarGridHelper extends LineSegments {
	constructor(radius = 10, radials = 16, circles = 8, divisions = 64, color1 = 0x444444, color2 = 0x888888) {
		color1 = new Color(color1);
		color2 = new Color(color2);
		const vertices = [];
		const colors = []; // create the radials

		for (let i = 0; i <= radials; i++) {
			const v = i / radials * (Math.PI * 2);
			const x = Math.sin(v) * radius;
			const z = Math.cos(v) * radius;
			vertices.push(0, 0, 0);
			vertices.push(x, 0, z);
			const color = i & 1 ? color1 : color2;
			colors.push(color.r, color.g, color.b);
			colors.push(color.r, color.g, color.b);
		} // create the circles


		for (let i = 0; i <= circles; i++) {
			const color = i & 1 ? color1 : color2;
			const r = radius - radius / circles * i;

			for (let j = 0; j < divisions; j++) {
				// first vertex
				let v = j / divisions * (Math.PI * 2);
				let x = Math.sin(v) * r;
				let z = Math.cos(v) * r;
				vertices.push(x, 0, z);
				colors.push(color.r, color.g, color.b); // second vertex

				v = (j + 1) / divisions * (Math.PI * 2);
				x = Math.sin(v) * r;
				z = Math.cos(v) * r;
				vertices.push(x, 0, z);
				colors.push(color.r, color.g, color.b);
			}
		}

		const geometry = new BufferGeometry();
		geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
		const material = new LineBasicMaterial({
			vertexColors: true,
			toneMapped: false
		});
		super(geometry, material);
		this.type = 'PolarGridHelper';
	}

}

const _v1 = /*@__PURE__*/new Vector3();

const _v2 = /*@__PURE__*/new Vector3();

const _v3 = /*@__PURE__*/new Vector3();

class DirectionalLightHelper extends Object3D {
	constructor(light, size, color) {
		super();
		this.light = light;
		this.light.updateMatrixWorld();
		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;
		this.color = color;
		if (size === undefined) size = 1;
		let geometry = new BufferGeometry();
		geometry.setAttribute('position', new Float32BufferAttribute([-size, size, 0, size, size, 0, size, -size, 0, -size, -size, 0, -size, size, 0], 3));
		const material = new LineBasicMaterial({
			fog: false,
			toneMapped: false
		});
		this.lightPlane = new Line(geometry, material);
		this.add(this.lightPlane);
		geometry = new BufferGeometry();
		geometry.setAttribute('position', new Float32BufferAttribute([0, 0, 0, 0, 0, 1], 3));
		this.targetLine = new Line(geometry, material);
		this.add(this.targetLine);
		this.update();
	}

	dispose() {
		this.lightPlane.geometry.dispose();
		this.lightPlane.material.dispose();
		this.targetLine.geometry.dispose();
		this.targetLine.material.dispose();
	}

	update() {
		_v1.setFromMatrixPosition(this.light.matrixWorld);

		_v2.setFromMatrixPosition(this.light.target.matrixWorld);

		_v3.subVectors(_v2, _v1);

		this.lightPlane.lookAt(_v2);

		if (this.color !== undefined) {
			this.lightPlane.material.color.set(this.color);
			this.targetLine.material.color.set(this.color);
		} else {
			this.lightPlane.material.color.copy(this.light.color);
			this.targetLine.material.color.copy(this.light.color);
		}

		this.targetLine.lookAt(_v2);
		this.targetLine.scale.z = _v3.length();
	}

}

const _vector = /*@__PURE__*/new Vector3();

const _camera = /*@__PURE__*/new Camera();
/**
 *	- shows frustum, line of sight and up of the camera
 *	- suitable for fast updates
 * 	- based on frustum visualization in lightgl.js shadowmap example
 *		https://github.com/evanw/lightgl.js/blob/master/tests/shadowmap.html
 */


class CameraHelper extends LineSegments {
	constructor(camera) {
		const geometry = new BufferGeometry();
		const material = new LineBasicMaterial({
			color: 0xffffff,
			vertexColors: true,
			toneMapped: false
		});
		const vertices = [];
		const colors = [];
		const pointMap = {}; // colors

		const colorFrustum = new Color(0xffaa00);
		const colorCone = new Color(0xff0000);
		const colorUp = new Color(0x00aaff);
		const colorTarget = new Color(0xffffff);
		const colorCross = new Color(0x333333); // near

		addLine('n1', 'n2', colorFrustum);
		addLine('n2', 'n4', colorFrustum);
		addLine('n4', 'n3', colorFrustum);
		addLine('n3', 'n1', colorFrustum); // far

		addLine('f1', 'f2', colorFrustum);
		addLine('f2', 'f4', colorFrustum);
		addLine('f4', 'f3', colorFrustum);
		addLine('f3', 'f1', colorFrustum); // sides

		addLine('n1', 'f1', colorFrustum);
		addLine('n2', 'f2', colorFrustum);
		addLine('n3', 'f3', colorFrustum);
		addLine('n4', 'f4', colorFrustum); // cone

		addLine('p', 'n1', colorCone);
		addLine('p', 'n2', colorCone);
		addLine('p', 'n3', colorCone);
		addLine('p', 'n4', colorCone); // up

		addLine('u1', 'u2', colorUp);
		addLine('u2', 'u3', colorUp);
		addLine('u3', 'u1', colorUp); // target

		addLine('c', 't', colorTarget);
		addLine('p', 'c', colorCross); // cross

		addLine('cn1', 'cn2', colorCross);
		addLine('cn3', 'cn4', colorCross);
		addLine('cf1', 'cf2', colorCross);
		addLine('cf3', 'cf4', colorCross);

		function addLine(a, b, color) {
			addPoint(a, color);
			addPoint(b, color);
		}

		function addPoint(id, color) {
			vertices.push(0, 0, 0);
			colors.push(color.r, color.g, color.b);

			if (pointMap[id] === undefined) {
				pointMap[id] = [];
			}

			pointMap[id].push(vertices.length / 3 - 1);
		}

		geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
		super(geometry, material);
		this.type = 'CameraHelper';
		this.camera = camera;
		if (this.camera.updateProjectionMatrix) this.camera.updateProjectionMatrix();
		this.matrix = camera.matrixWorld;
		this.matrixAutoUpdate = false;
		this.pointMap = pointMap;
		this.update();
	}

	update() {
		const geometry = this.geometry;
		const pointMap = this.pointMap;
		const w = 1,
					h = 1; // we need just camera projection matrix inverse
		// world matrix must be identity

		_camera.projectionMatrixInverse.copy(this.camera.projectionMatrixInverse); // center / target


		setPoint('c', pointMap, geometry, _camera, 0, 0, -1);
		setPoint('t', pointMap, geometry, _camera, 0, 0, 1); // near

		setPoint('n1', pointMap, geometry, _camera, -w, -h, -1);
		setPoint('n2', pointMap, geometry, _camera, w, -h, -1);
		setPoint('n3', pointMap, geometry, _camera, -w, h, -1);
		setPoint('n4', pointMap, geometry, _camera, w, h, -1); // far

		setPoint('f1', pointMap, geometry, _camera, -w, -h, 1);
		setPoint('f2', pointMap, geometry, _camera, w, -h, 1);
		setPoint('f3', pointMap, geometry, _camera, -w, h, 1);
		setPoint('f4', pointMap, geometry, _camera, w, h, 1); // up

		setPoint('u1', pointMap, geometry, _camera, w * 0.7, h * 1.1, -1);
		setPoint('u2', pointMap, geometry, _camera, -w * 0.7, h * 1.1, -1);
		setPoint('u3', pointMap, geometry, _camera, 0, h * 2, -1); // cross

		setPoint('cf1', pointMap, geometry, _camera, -w, 0, 1);
		setPoint('cf2', pointMap, geometry, _camera, w, 0, 1);
		setPoint('cf3', pointMap, geometry, _camera, 0, -h, 1);
		setPoint('cf4', pointMap, geometry, _camera, 0, h, 1);
		setPoint('cn1', pointMap, geometry, _camera, -w, 0, -1);
		setPoint('cn2', pointMap, geometry, _camera, w, 0, -1);
		setPoint('cn3', pointMap, geometry, _camera, 0, -h, -1);
		setPoint('cn4', pointMap, geometry, _camera, 0, h, -1);
		geometry.getAttribute('position').needsUpdate = true;
	}

	dispose() {
		this.geometry.dispose();
		this.material.dispose();
	}

}

function setPoint(point, pointMap, geometry, camera, x, y, z) {
	_vector.set(x, y, z).unproject(camera);

	const points = pointMap[point];

	if (points !== undefined) {
		const position = geometry.getAttribute('position');

		for (let i = 0, l = points.length; i < l; i++) {
			position.setXYZ(points[i], _vector.x, _vector.y, _vector.z);
		}
	}
}

const _box = /*@__PURE__*/new Box3();

class BoxHelper extends LineSegments {
	constructor(object, color = 0xffff00) {
		const indices = new Uint16Array([0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7]);
		const positions = new Float32Array(8 * 3);
		const geometry = new BufferGeometry();
		geometry.setIndex(new BufferAttribute(indices, 1));
		geometry.setAttribute('position', new BufferAttribute(positions, 3));
		super(geometry, new LineBasicMaterial({
			color: color,
			toneMapped: false
		}));
		this.object = object;
		this.type = 'BoxHelper';
		this.matrixAutoUpdate = false;
		this.update();
	}

	update(object) {
		if (object !== undefined) {
			console.warn('THREE.BoxHelper: .update() has no longer arguments.');
		}

		if (this.object !== undefined) {
			_box.setFromObject(this.object);
		}

		if (_box.isEmpty()) return;
		const min = _box.min;
		const max = _box.max;
		/*
			5____4
		1/___0/|
		| 6__|_7
		2/___3/
			0: max.x, max.y, max.z
		1: min.x, max.y, max.z
		2: min.x, min.y, max.z
		3: max.x, min.y, max.z
		4: max.x, max.y, min.z
		5: min.x, max.y, min.z
		6: min.x, min.y, min.z
		7: max.x, min.y, min.z
		*/

		const position = this.geometry.attributes.position;
		const array = position.array;
		array[0] = max.x;
		array[1] = max.y;
		array[2] = max.z;
		array[3] = min.x;
		array[4] = max.y;
		array[5] = max.z;
		array[6] = min.x;
		array[7] = min.y;
		array[8] = max.z;
		array[9] = max.x;
		array[10] = min.y;
		array[11] = max.z;
		array[12] = max.x;
		array[13] = max.y;
		array[14] = min.z;
		array[15] = min.x;
		array[16] = max.y;
		array[17] = min.z;
		array[18] = min.x;
		array[19] = min.y;
		array[20] = min.z;
		array[21] = max.x;
		array[22] = min.y;
		array[23] = min.z;
		position.needsUpdate = true;
		this.geometry.computeBoundingSphere();
	}

	setFromObject(object) {
		this.object = object;
		this.update();
		return this;
	}

	copy(source) {
		LineSegments.prototype.copy.call(this, source);
		this.object = source.object;
		return this;
	}

}

class Box3Helper extends LineSegments {
	constructor(box, color = 0xffff00) {
		const indices = new Uint16Array([0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7]);
		const positions = [1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, -1, -1, 1, -1, -1, -1, -1, 1, -1, -1];
		const geometry = new BufferGeometry();
		geometry.setIndex(new BufferAttribute(indices, 1));
		geometry.setAttribute('position', new Float32BufferAttribute(positions, 3));
		super(geometry, new LineBasicMaterial({
			color: color,
			toneMapped: false
		}));
		this.box = box;
		this.type = 'Box3Helper';
		this.geometry.computeBoundingSphere();
	}

	updateMatrixWorld(force) {
		const box = this.box;
		if (box.isEmpty()) return;
		box.getCenter(this.position);
		box.getSize(this.scale);
		this.scale.multiplyScalar(0.5);
		super.updateMatrixWorld(force);
	}

}

class PlaneHelper extends Line {
	constructor(plane, size = 1, hex = 0xffff00) {
		const color = hex;
		const positions = [1, -1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0];
		const geometry = new BufferGeometry();
		geometry.setAttribute('position', new Float32BufferAttribute(positions, 3));
		geometry.computeBoundingSphere();
		super(geometry, new LineBasicMaterial({
			color: color,
			toneMapped: false
		}));
		this.type = 'PlaneHelper';
		this.plane = plane;
		this.size = size;
		const positions2 = [1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1, 1, -1, -1, 1, 1, -1, 1];
		const geometry2 = new BufferGeometry();
		geometry2.setAttribute('position', new Float32BufferAttribute(positions2, 3));
		geometry2.computeBoundingSphere();
		this.add(new Mesh(geometry2, new MeshBasicMaterial({
			color: color,
			opacity: 0.2,
			transparent: true,
			depthWrite: false,
			toneMapped: false
		})));
	}

	updateMatrixWorld(force) {
		let scale = -this.plane.constant;
		if (Math.abs(scale) < 1e-8) scale = 1e-8; // sign does not matter

		this.scale.set(0.5 * this.size, 0.5 * this.size, scale);
		this.children[0].material.side = scale < 0 ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here

		this.lookAt(this.plane.normal);
		super.updateMatrixWorld(force);
	}

}

const _axis = /*@__PURE__*/new Vector3();

let _lineGeometry, _coneGeometry;

class ArrowHelper extends Object3D {
	// dir is assumed to be normalized
	constructor(dir = new Vector3(0, 0, 1), origin = new Vector3(0, 0, 0), length = 1, color = 0xffff00, headLength = length * 0.2, headWidth = headLength * 0.2) {
		super();
		this.type = 'ArrowHelper';

		if (_lineGeometry === undefined) {
			_lineGeometry = new BufferGeometry();

			_lineGeometry.setAttribute('position', new Float32BufferAttribute([0, 0, 0, 0, 1, 0], 3));

			_coneGeometry = new CylinderGeometry(0, 0.5, 1, 5, 1);

			_coneGeometry.translate(0, -0.5, 0);
		}

		this.position.copy(origin);
		this.line = new Line(_lineGeometry, new LineBasicMaterial({
			color: color,
			toneMapped: false
		}));
		this.line.matrixAutoUpdate = false;
		this.add(this.line);
		this.cone = new Mesh(_coneGeometry, new MeshBasicMaterial({
			color: color,
			toneMapped: false
		}));
		this.cone.matrixAutoUpdate = false;
		this.add(this.cone);
		this.setDirection(dir);
		this.setLength(length, headLength, headWidth);
	}

	setDirection(dir) {
		// dir is assumed to be normalized
		if (dir.y > 0.99999) {
			this.quaternion.set(0, 0, 0, 1);
		} else if (dir.y < -0.99999) {
			this.quaternion.set(1, 0, 0, 0);
		} else {
			_axis.set(dir.z, 0, -dir.x).normalize();

			const radians = Math.acos(dir.y);
			this.quaternion.setFromAxisAngle(_axis, radians);
		}
	}

	setLength(length, headLength = length * 0.2, headWidth = headLength * 0.2) {
		this.line.scale.set(1, Math.max(0.0001, length - headLength), 1); // see #17458

		this.line.updateMatrix();
		this.cone.scale.set(headWidth, headLength, headWidth);
		this.cone.position.y = length;
		this.cone.updateMatrix();
	}

	setColor(color) {
		this.line.material.color.set(color);
		this.cone.material.color.set(color);
	}

	copy(source) {
		super.copy(source, false);
		this.line.copy(source.line);
		this.cone.copy(source.cone);
		return this;
	}

}

class AxesHelper extends LineSegments {
	constructor(size = 1) {
		const vertices = [0, 0, 0, size, 0, 0, 0, 0, 0, 0, size, 0, 0, 0, 0, 0, 0, size];
		const colors = [1, 0, 0, 1, 0.6, 0, 0, 1, 0, 0.6, 1, 0, 0, 0, 1, 0, 0.6, 1];
		const geometry = new BufferGeometry();
		geometry.setAttribute('position', new Float32BufferAttribute(vertices, 3));
		geometry.setAttribute('color', new Float32BufferAttribute(colors, 3));
		const material = new LineBasicMaterial({
			vertexColors: true,
			toneMapped: false
		});
		super(geometry, material);
		this.type = 'AxesHelper';
	}

	setColors(xAxisColor, yAxisColor, zAxisColor) {
		const color = new Color();
		const array = this.geometry.attributes.color.array;
		color.set(xAxisColor);
		color.toArray(array, 0);
		color.toArray(array, 3);
		color.set(yAxisColor);
		color.toArray(array, 6);
		color.toArray(array, 9);
		color.set(zAxisColor);
		color.toArray(array, 12);
		color.toArray(array, 15);
		this.geometry.attributes.color.needsUpdate = true;
		return this;
	}

	dispose() {
		this.geometry.dispose();
		this.material.dispose();
	}

}

class ShapePath {
	constructor() {
		this.type = 'ShapePath';
		this.color = new Color();
		this.subPaths = [];
		this.currentPath = null;
	}

	moveTo(x, y) {
		this.currentPath = new Path();
		this.subPaths.push(this.currentPath);
		this.currentPath.moveTo(x, y);
		return this;
	}

	lineTo(x, y) {
		this.currentPath.lineTo(x, y);
		return this;
	}

	quadraticCurveTo(aCPx, aCPy, aX, aY) {
		this.currentPath.quadraticCurveTo(aCPx, aCPy, aX, aY);
		return this;
	}

	bezierCurveTo(aCP1x, aCP1y, aCP2x, aCP2y, aX, aY) {
		this.currentPath.bezierCurveTo(aCP1x, aCP1y, aCP2x, aCP2y, aX, aY);
		return this;
	}

	splineThru(pts) {
		this.currentPath.splineThru(pts);
		return this;
	}

	toShapes(isCCW, noHoles) {
		function toShapesNoHoles(inSubpaths) {
			const shapes = [];

			for (let i = 0, l = inSubpaths.length; i < l; i++) {
				const tmpPath = inSubpaths[i];
				const tmpShape = new Shape();
				tmpShape.curves = tmpPath.curves;
				shapes.push(tmpShape);
			}

			return shapes;
		}

		function isPointInsidePolygon(inPt, inPolygon) {
			const polyLen = inPolygon.length; // inPt on polygon contour => immediate success		or
			// toggling of inside/outside at every single! intersection point of an edge
			//	with the horizontal line through inPt, left of inPt
			//	not counting lowerY endpoints of edges and whole edges on that line

			let inside = false;

			for (let p = polyLen - 1, q = 0; q < polyLen; p = q++) {
				let edgeLowPt = inPolygon[p];
				let edgeHighPt = inPolygon[q];
				let edgeDx = edgeHighPt.x - edgeLowPt.x;
				let edgeDy = edgeHighPt.y - edgeLowPt.y;

				if (Math.abs(edgeDy) > Number.EPSILON) {
					// not parallel
					if (edgeDy < 0) {
						edgeLowPt = inPolygon[q];
						edgeDx = -edgeDx;
						edgeHighPt = inPolygon[p];
						edgeDy = -edgeDy;
					}

					if (inPt.y < edgeLowPt.y || inPt.y > edgeHighPt.y) continue;

					if (inPt.y === edgeLowPt.y) {
						if (inPt.x === edgeLowPt.x) return true; // inPt is on contour ?
						// continue;				// no intersection or edgeLowPt => doesn't count !!!
					} else {
						const perpEdge = edgeDy * (inPt.x - edgeLowPt.x) - edgeDx * (inPt.y - edgeLowPt.y);
						if (perpEdge === 0) return true; // inPt is on contour ?

						if (perpEdge < 0) continue;
						inside = !inside; // true intersection left of inPt
					}
				} else {
					// parallel or collinear
					if (inPt.y !== edgeLowPt.y) continue; // parallel
					// edge lies on the same horizontal line as inPt

					if (edgeHighPt.x <= inPt.x && inPt.x <= edgeLowPt.x || edgeLowPt.x <= inPt.x && inPt.x <= edgeHighPt.x) return true; // inPt: Point on contour !
					// continue;
				}
			}

			return inside;
		}

		const isClockWise = ShapeUtils.isClockWise;
		const subPaths = this.subPaths;
		if (subPaths.length === 0) return [];
		if (noHoles === true) return toShapesNoHoles(subPaths);
		let solid, tmpPath, tmpShape;
		const shapes = [];

		if (subPaths.length === 1) {
			tmpPath = subPaths[0];
			tmpShape = new Shape();
			tmpShape.curves = tmpPath.curves;
			shapes.push(tmpShape);
			return shapes;
		}

		let holesFirst = !isClockWise(subPaths[0].getPoints());
		holesFirst = isCCW ? !holesFirst : holesFirst; // console.log("Holes first", holesFirst);

		const betterShapeHoles = [];
		const newShapes = [];
		let newShapeHoles = [];
		let mainIdx = 0;
		let tmpPoints;
		newShapes[mainIdx] = undefined;
		newShapeHoles[mainIdx] = [];

		for (let i = 0, l = subPaths.length; i < l; i++) {
			tmpPath = subPaths[i];
			tmpPoints = tmpPath.getPoints();
			solid = isClockWise(tmpPoints);
			solid = isCCW ? !solid : solid;

			if (solid) {
				if (!holesFirst && newShapes[mainIdx]) mainIdx++;
				newShapes[mainIdx] = {
					s: new Shape(),
					p: tmpPoints
				};
				newShapes[mainIdx].s.curves = tmpPath.curves;
				if (holesFirst) mainIdx++;
				newShapeHoles[mainIdx] = []; //console.log('cw', i);
			} else {
				newShapeHoles[mainIdx].push({
					h: tmpPath,
					p: tmpPoints[0]
				}); //console.log('ccw', i);
			}
		} // only Holes? -> probably all Shapes with wrong orientation


		if (!newShapes[0]) return toShapesNoHoles(subPaths);

		if (newShapes.length > 1) {
			let ambiguous = false;
			const toChange = [];

			for (let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx++) {
				betterShapeHoles[sIdx] = [];
			}

			for (let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx++) {
				const sho = newShapeHoles[sIdx];

				for (let hIdx = 0; hIdx < sho.length; hIdx++) {
					const ho = sho[hIdx];
					let hole_unassigned = true;

					for (let s2Idx = 0; s2Idx < newShapes.length; s2Idx++) {
						if (isPointInsidePolygon(ho.p, newShapes[s2Idx].p)) {
							if (sIdx !== s2Idx) toChange.push({
								froms: sIdx,
								tos: s2Idx,
								hole: hIdx
							});

							if (hole_unassigned) {
								hole_unassigned = false;
								betterShapeHoles[s2Idx].push(ho);
							} else {
								ambiguous = true;
							}
						}
					}

					if (hole_unassigned) {
						betterShapeHoles[sIdx].push(ho);
					}
				}
			} // console.log("ambiguous: ", ambiguous);


			if (toChange.length > 0) {
				// console.log("to change: ", toChange);
				if (!ambiguous) newShapeHoles = betterShapeHoles;
			}
		}

		let tmpHoles;

		for (let i = 0, il = newShapes.length; i < il; i++) {
			tmpShape = newShapes[i].s;
			shapes.push(tmpShape);
			tmpHoles = newShapeHoles[i];

			for (let j = 0, jl = tmpHoles.length; j < jl; j++) {
				tmpShape.holes.push(tmpHoles[j].h);
			}
		} //console.log("shape", shapes);


		return shapes;
	}

}

const _floatView = new Float32Array(1);

const _int32View = new Int32Array(_floatView.buffer);

class DataUtils {
	// Converts float32 to float16 (stored as uint16 value).
	static toHalfFloat(val) {
		if (val > 65504) {
			console.warn('THREE.DataUtils.toHalfFloat(): value exceeds 65504.');
			val = 65504; // maximum representable value in float16
		} // Source: http://gamedev.stackexchange.com/questions/17326/conversion-of-a-number-from-single-precision-floating-point-representation-to-a/17410#17410

		/* This method is faster than the OpenEXR implementation (very often
		* used, eg. in Ogre), with the additional benefit of rounding, inspired
		* by James Tursa?s half-precision code. */


		_floatView[0] = val;
		const x = _int32View[0];
		let bits = x >> 16 & 0x8000;
		/* Get the sign */

		let m = x >> 12 & 0x07ff;
		/* Keep one extra bit for rounding */

		const e = x >> 23 & 0xff;
		/* Using int is faster here */

		/* If zero, or denormal, or exponent underflows too much for a denormal
			* half, return signed zero. */

		if (e < 103) return bits;
		/* If NaN, return NaN. If Inf or exponent overflow, return Inf. */

		if (e > 142) {
			bits |= 0x7c00;
			/* If exponent was 0xff and one mantissa bit was set, it means NaN,
						* not Inf, so make sure we set one mantissa bit too. */

			bits |= (e == 255 ? 0 : 1) && x & 0x007fffff;
			return bits;
		}
		/* If exponent underflows but not too much, return a denormal */


		if (e < 113) {
			m |= 0x0800;
			/* Extra rounding may overflow and set mantissa to 0 and exponent
				* to 1, which is OK. */

			bits |= (m >> 114 - e) + (m >> 113 - e & 1);
			return bits;
		}

		bits |= e - 112 << 10 | m >> 1;
		/* Extra rounding. An overflow will set mantissa to 0 and increment
			* the exponent, which is OK. */

		bits += m & 1;
		return bits;
	}

}

const LineStrip = 0;
const LinePieces = 1;
const NoColors = 0;
const FaceColors = 1;
const VertexColors = 2;
function MeshFaceMaterial(materials) {
	console.warn('THREE.MeshFaceMaterial has been removed. Use an Array instead.');
	return materials;
}
function MultiMaterial(materials = []) {
	console.warn('THREE.MultiMaterial has been removed. Use an Array instead.');
	materials.isMultiMaterial = true;
	materials.materials = materials;

	materials.clone = function () {
		return materials.slice();
	};

	return materials;
}
function PointCloud(geometry, material) {
	console.warn('THREE.PointCloud has been renamed to THREE.Points.');
	return new Points(geometry, material);
}
function Particle(material) {
	console.warn('THREE.Particle has been renamed to THREE.Sprite.');
	return new Sprite(material);
}
function ParticleSystem(geometry, material) {
	console.warn('THREE.ParticleSystem has been renamed to THREE.Points.');
	return new Points(geometry, material);
}
function PointCloudMaterial(parameters) {
	console.warn('THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.');
	return new PointsMaterial(parameters);
}
function ParticleBasicMaterial(parameters) {
	console.warn('THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.');
	return new PointsMaterial(parameters);
}
function ParticleSystemMaterial(parameters) {
	console.warn('THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.');
	return new PointsMaterial(parameters);
}
function Vertex(x, y, z) {
	console.warn('THREE.Vertex has been removed. Use THREE.Vector3 instead.');
	return new Vector3(x, y, z);
} //

function DynamicBufferAttribute(array, itemSize) {
	console.warn('THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead.');
	return new BufferAttribute(array, itemSize).setUsage(DynamicDrawUsage);
}
function Int8Attribute(array, itemSize) {
	console.warn('THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.');
	return new Int8BufferAttribute(array, itemSize);
}
function Uint8Attribute(array, itemSize) {
	console.warn('THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.');
	return new Uint8BufferAttribute(array, itemSize);
}
function Uint8ClampedAttribute(array, itemSize) {
	console.warn('THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.');
	return new Uint8ClampedBufferAttribute(array, itemSize);
}
function Int16Attribute(array, itemSize) {
	console.warn('THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.');
	return new Int16BufferAttribute(array, itemSize);
}
function Uint16Attribute(array, itemSize) {
	console.warn('THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.');
	return new Uint16BufferAttribute(array, itemSize);
}
function Int32Attribute(array, itemSize) {
	console.warn('THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.');
	return new Int32BufferAttribute(array, itemSize);
}
function Uint32Attribute(array, itemSize) {
	console.warn('THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.');
	return new Uint32BufferAttribute(array, itemSize);
}
function Float32Attribute(array, itemSize) {
	console.warn('THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.');
	return new Float32BufferAttribute(array, itemSize);
}
function Float64Attribute(array, itemSize) {
	console.warn('THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.');
	return new Float64BufferAttribute(array, itemSize);
} //

Curve.create = function (construct, getPoint) {
	console.log('THREE.Curve.create() has been deprecated');
	construct.prototype = Object.create(Curve.prototype);
	construct.prototype.constructor = construct;
	construct.prototype.getPoint = getPoint;
	return construct;
}; //


Path.prototype.fromPoints = function (points) {
	console.warn('THREE.Path: .fromPoints() has been renamed to .setFromPoints().');
	return this.setFromPoints(points);
}; //


function AxisHelper(size) {
	console.warn('THREE.AxisHelper has been renamed to THREE.AxesHelper.');
	return new AxesHelper(size);
}
function BoundingBoxHelper(object, color) {
	console.warn('THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.');
	return new BoxHelper(object, color);
}
function EdgesHelper(object, hex) {
	console.warn('THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.');
	return new LineSegments(new EdgesGeometry(object.geometry), new LineBasicMaterial({
		color: hex !== undefined ? hex : 0xffffff
	}));
}

GridHelper.prototype.setColors = function () {
	console.error('THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.');
};

SkeletonHelper.prototype.update = function () {
	console.error('THREE.SkeletonHelper: update() no longer needs to be called.');
};

function WireframeHelper(object, hex) {
	console.warn('THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.');
	return new LineSegments(new WireframeGeometry(object.geometry), new LineBasicMaterial({
		color: hex !== undefined ? hex : 0xffffff
	}));
} //

Loader.prototype.extractUrlBase = function (url) {
	console.warn('THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.');
	return LoaderUtils.extractUrlBase(url);
};

Loader.Handlers = {
	add: function
		/* regex, loader */
	() {
		console.error('THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.');
	},
	get: function
		/* file */
	() {
		console.error('THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.');
	}
};
function XHRLoader(manager) {
	console.warn('THREE.XHRLoader has been renamed to THREE.FileLoader.');
	return new FileLoader(manager);
}
function BinaryTextureLoader(manager) {
	console.warn('THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.');
	return new DataTextureLoader(manager);
} //

Box2.prototype.center = function (optionalTarget) {
	console.warn('THREE.Box2: .center() has been renamed to .getCenter().');
	return this.getCenter(optionalTarget);
};

Box2.prototype.empty = function () {
	console.warn('THREE.Box2: .empty() has been renamed to .isEmpty().');
	return this.isEmpty();
};

Box2.prototype.isIntersectionBox = function (box) {
	console.warn('THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().');
	return this.intersectsBox(box);
};

Box2.prototype.size = function (optionalTarget) {
	console.warn('THREE.Box2: .size() has been renamed to .getSize().');
	return this.getSize(optionalTarget);
}; //


Box3.prototype.center = function (optionalTarget) {
	console.warn('THREE.Box3: .center() has been renamed to .getCenter().');
	return this.getCenter(optionalTarget);
};

Box3.prototype.empty = function () {
	console.warn('THREE.Box3: .empty() has been renamed to .isEmpty().');
	return this.isEmpty();
};

Box3.prototype.isIntersectionBox = function (box) {
	console.warn('THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().');
	return this.intersectsBox(box);
};

Box3.prototype.isIntersectionSphere = function (sphere) {
	console.warn('THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().');
	return this.intersectsSphere(sphere);
};

Box3.prototype.size = function (optionalTarget) {
	console.warn('THREE.Box3: .size() has been renamed to .getSize().');
	return this.getSize(optionalTarget);
}; //


Sphere.prototype.empty = function () {
	console.warn('THREE.Sphere: .empty() has been renamed to .isEmpty().');
	return this.isEmpty();
}; //


Frustum.prototype.setFromMatrix = function (m) {
	console.warn('THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix().');
	return this.setFromProjectionMatrix(m);
}; //


Line3.prototype.center = function (optionalTarget) {
	console.warn('THREE.Line3: .center() has been renamed to .getCenter().');
	return this.getCenter(optionalTarget);
}; //


Matrix3.prototype.flattenToArrayOffset = function (array, offset) {
	console.warn('THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.');
	return this.toArray(array, offset);
};

Matrix3.prototype.multiplyVector3 = function (vector) {
	console.warn('THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.');
	return vector.applyMatrix3(this);
};

Matrix3.prototype.multiplyVector3Array = function
	/* a */
() {
	console.error('THREE.Matrix3: .multiplyVector3Array() has been removed.');
};

Matrix3.prototype.applyToBufferAttribute = function (attribute) {
	console.warn('THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead.');
	return attribute.applyMatrix3(this);
};

Matrix3.prototype.applyToVector3Array = function
	/* array, offset, length */
() {
	console.error('THREE.Matrix3: .applyToVector3Array() has been removed.');
};

Matrix3.prototype.getInverse = function (matrix) {
	console.warn('THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.');
	return this.copy(matrix).invert();
}; //


Matrix4.prototype.extractPosition = function (m) {
	console.warn('THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().');
	return this.copyPosition(m);
};

Matrix4.prototype.flattenToArrayOffset = function (array, offset) {
	console.warn('THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.');
	return this.toArray(array, offset);
};

Matrix4.prototype.getPosition = function () {
	console.warn('THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.');
	return new Vector3().setFromMatrixColumn(this, 3);
};

Matrix4.prototype.setRotationFromQuaternion = function (q) {
	console.warn('THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().');
	return this.makeRotationFromQuaternion(q);
};

Matrix4.prototype.multiplyToArray = function () {
	console.warn('THREE.Matrix4: .multiplyToArray() has been removed.');
};

Matrix4.prototype.multiplyVector3 = function (vector) {
	console.warn('THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.');
	return vector.applyMatrix4(this);
};

Matrix4.prototype.multiplyVector4 = function (vector) {
	console.warn('THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.');
	return vector.applyMatrix4(this);
};

Matrix4.prototype.multiplyVector3Array = function
	/* a */
() {
	console.error('THREE.Matrix4: .multiplyVector3Array() has been removed.');
};

Matrix4.prototype.rotateAxis = function (v) {
	console.warn('THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.');
	v.transformDirection(this);
};

Matrix4.prototype.crossVector = function (vector) {
	console.warn('THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.');
	return vector.applyMatrix4(this);
};

Matrix4.prototype.translate = function () {
	console.error('THREE.Matrix4: .translate() has been removed.');
};

Matrix4.prototype.rotateX = function () {
	console.error('THREE.Matrix4: .rotateX() has been removed.');
};

Matrix4.prototype.rotateY = function () {
	console.error('THREE.Matrix4: .rotateY() has been removed.');
};

Matrix4.prototype.rotateZ = function () {
	console.error('THREE.Matrix4: .rotateZ() has been removed.');
};

Matrix4.prototype.rotateByAxis = function () {
	console.error('THREE.Matrix4: .rotateByAxis() has been removed.');
};

Matrix4.prototype.applyToBufferAttribute = function (attribute) {
	console.warn('THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead.');
	return attribute.applyMatrix4(this);
};

Matrix4.prototype.applyToVector3Array = function
	/* array, offset, length */
() {
	console.error('THREE.Matrix4: .applyToVector3Array() has been removed.');
};

Matrix4.prototype.makeFrustum = function (left, right, bottom, top, near, far) {
	console.warn('THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.');
	return this.makePerspective(left, right, top, bottom, near, far);
};

Matrix4.prototype.getInverse = function (matrix) {
	console.warn('THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.');
	return this.copy(matrix).invert();
}; //


Plane.prototype.isIntersectionLine = function (line) {
	console.warn('THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().');
	return this.intersectsLine(line);
}; //


Quaternion.prototype.multiplyVector3 = function (vector) {
	console.warn('THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.');
	return vector.applyQuaternion(this);
};

Quaternion.prototype.inverse = function () {
	console.warn('THREE.Quaternion: .inverse() has been renamed to invert().');
	return this.invert();
}; //


Ray.prototype.isIntersectionBox = function (box) {
	console.warn('THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().');
	return this.intersectsBox(box);
};

Ray.prototype.isIntersectionPlane = function (plane) {
	console.warn('THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().');
	return this.intersectsPlane(plane);
};

Ray.prototype.isIntersectionSphere = function (sphere) {
	console.warn('THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().');
	return this.intersectsSphere(sphere);
}; //


Triangle.prototype.area = function () {
	console.warn('THREE.Triangle: .area() has been renamed to .getArea().');
	return this.getArea();
};

Triangle.prototype.barycoordFromPoint = function (point, target) {
	console.warn('THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().');
	return this.getBarycoord(point, target);
};

Triangle.prototype.midpoint = function (target) {
	console.warn('THREE.Triangle: .midpoint() has been renamed to .getMidpoint().');
	return this.getMidpoint(target);
};

Triangle.prototypenormal = function (target) {
	console.warn('THREE.Triangle: .normal() has been renamed to .getNormal().');
	return this.getNormal(target);
};

Triangle.prototype.plane = function (target) {
	console.warn('THREE.Triangle: .plane() has been renamed to .getPlane().');
	return this.getPlane(target);
};

Triangle.barycoordFromPoint = function (point, a, b, c, target) {
	console.warn('THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().');
	return Triangle.getBarycoord(point, a, b, c, target);
};

Triangle.normal = function (a, b, c, target) {
	console.warn('THREE.Triangle: .normal() has been renamed to .getNormal().');
	return Triangle.getNormal(a, b, c, target);
}; //


Shape.prototype.extractAllPoints = function (divisions) {
	console.warn('THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.');
	return this.extractPoints(divisions);
};

Shape.prototype.extrude = function (options) {
	console.warn('THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.');
	return new ExtrudeGeometry(this, options);
};

Shape.prototype.makeGeometry = function (options) {
	console.warn('THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.');
	return new ShapeGeometry(this, options);
}; //


Vector2.prototype.fromAttribute = function (attribute, index, offset) {
	console.warn('THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().');
	return this.fromBufferAttribute(attribute, index, offset);
};

Vector2.prototype.distanceToManhattan = function (v) {
	console.warn('THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().');
	return this.manhattanDistanceTo(v);
};

Vector2.prototype.lengthManhattan = function () {
	console.warn('THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().');
	return this.manhattanLength();
}; //


Vector3.prototype.setEulerFromRotationMatrix = function () {
	console.error('THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.');
};

Vector3.prototype.setEulerFromQuaternion = function () {
	console.error('THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.');
};

Vector3.prototype.getPositionFromMatrix = function (m) {
	console.warn('THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().');
	return this.setFromMatrixPosition(m);
};

Vector3.prototype.getScaleFromMatrix = function (m) {
	console.warn('THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().');
	return this.setFromMatrixScale(m);
};

Vector3.prototype.getColumnFromMatrix = function (index, matrix) {
	console.warn('THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().');
	return this.setFromMatrixColumn(matrix, index);
};

Vector3.prototype.applyProjection = function (m) {
	console.warn('THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.');
	return this.applyMatrix4(m);
};

Vector3.prototype.fromAttribute = function (attribute, index, offset) {
	console.warn('THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().');
	return this.fromBufferAttribute(attribute, index, offset);
};

Vector3.prototype.distanceToManhattan = function (v) {
	console.warn('THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().');
	return this.manhattanDistanceTo(v);
};

Vector3.prototype.lengthManhattan = function () {
	console.warn('THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().');
	return this.manhattanLength();
}; //


Vector4.prototype.fromAttribute = function (attribute, index, offset) {
	console.warn('THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().');
	return this.fromBufferAttribute(attribute, index, offset);
};

Vector4.prototype.lengthManhattan = function () {
	console.warn('THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().');
	return this.manhattanLength();
}; //


Object3D.prototype.getChildByName = function (name) {
	console.warn('THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().');
	return this.getObjectByName(name);
};

Object3D.prototype.renderDepth = function () {
	console.warn('THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.');
};

Object3D.prototype.translate = function (distance, axis) {
	console.warn('THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.');
	return this.translateOnAxis(axis, distance);
};

Object3D.prototype.getWorldRotation = function () {
	console.error('THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.');
};

Object3D.prototype.applyMatrix = function (matrix) {
	console.warn('THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4().');
	return this.applyMatrix4(matrix);
};

Object.defineProperties(Object3D.prototype, {
	eulerOrder: {
		get: function () {
			console.warn('THREE.Object3D: .eulerOrder is now .rotation.order.');
			return this.rotation.order;
		},
		set: function (value) {
			console.warn('THREE.Object3D: .eulerOrder is now .rotation.order.');
			this.rotation.order = value;
		}
	},
	useQuaternion: {
		get: function () {
			console.warn('THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.');
		},
		set: function () {
			console.warn('THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.');
		}
	}
});

Mesh.prototype.setDrawMode = function () {
	console.error('THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.');
};

Object.defineProperties(Mesh.prototype, {
	drawMode: {
		get: function () {
			console.error('THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode.');
			return TrianglesDrawMode;
		},
		set: function () {
			console.error('THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.');
		}
	}
});

SkinnedMesh.prototype.initBones = function () {
	console.error('THREE.SkinnedMesh: initBones() has been removed.');
}; //


PerspectiveCamera.prototype.setLens = function (focalLength, filmGauge) {
	console.warn('THREE.PerspectiveCamera.setLens is deprecated. ' + 'Use .setFocalLength and .filmGauge for a photographic setup.');
	if (filmGauge !== undefined) this.filmGauge = filmGauge;
	this.setFocalLength(focalLength);
}; //


Object.defineProperties(Light.prototype, {
	onlyShadow: {
		set: function () {
			console.warn('THREE.Light: .onlyShadow has been removed.');
		}
	},
	shadowCameraFov: {
		set: function (value) {
			console.warn('THREE.Light: .shadowCameraFov is now .shadow.camera.fov.');
			this.shadow.camera.fov = value;
		}
	},
	shadowCameraLeft: {
		set: function (value) {
			console.warn('THREE.Light: .shadowCameraLeft is now .shadow.camera.left.');
			this.shadow.camera.left = value;
		}
	},
	shadowCameraRight: {
		set: function (value) {
			console.warn('THREE.Light: .shadowCameraRight is now .shadow.camera.right.');
			this.shadow.camera.right = value;
		}
	},
	shadowCameraTop: {
		set: function (value) {
			console.warn('THREE.Light: .shadowCameraTop is now .shadow.camera.top.');
			this.shadow.camera.top = value;
		}
	},
	shadowCameraBottom: {
		set: function (value) {
			console.warn('THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.');
			this.shadow.camera.bottom = value;
		}
	},
	shadowCameraNear: {
		set: function (value) {
			console.warn('THREE.Light: .shadowCameraNear is now .shadow.camera.near.');
			this.shadow.camera.near = value;
		}
	},
	shadowCameraFar: {
		set: function (value) {
			console.warn('THREE.Light: .shadowCameraFar is now .shadow.camera.far.');
			this.shadow.camera.far = value;
		}
	},
	shadowCameraVisible: {
		set: function () {
			console.warn('THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.');
		}
	},
	shadowBias: {
		set: function (value) {
			console.warn('THREE.Light: .shadowBias is now .shadow.bias.');
			this.shadow.bias = value;
		}
	},
	shadowDarkness: {
		set: function () {
			console.warn('THREE.Light: .shadowDarkness has been removed.');
		}
	},
	shadowMapWidth: {
		set: function (value) {
			console.warn('THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.');
			this.shadow.mapSize.width = value;
		}
	},
	shadowMapHeight: {
		set: function (value) {
			console.warn('THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.');
			this.shadow.mapSize.height = value;
		}
	}
}); //

Object.defineProperties(BufferAttribute.prototype, {
	length: {
		get: function () {
			console.warn('THREE.BufferAttribute: .length has been deprecated. Use .count instead.');
			return this.array.length;
		}
	},
	dynamic: {
		get: function () {
			console.warn('THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.');
			return this.usage === DynamicDrawUsage;
		},
		set: function
			/* value */
		() {
			console.warn('THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.');
			this.setUsage(DynamicDrawUsage);
		}
	}
});

BufferAttribute.prototype.setDynamic = function (value) {
	console.warn('THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead.');
	this.setUsage(value === true ? DynamicDrawUsage : StaticDrawUsage);
	return this;
};

BufferAttribute.prototype.copyIndicesArray = function
	/* indices */
() {
	console.error('THREE.BufferAttribute: .copyIndicesArray() has been removed.');
}, BufferAttribute.prototype.setArray = function
	/* array */
() {
	console.error('THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers');
}; //

BufferGeometry.prototype.addIndex = function (index) {
	console.warn('THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().');
	this.setIndex(index);
};

BufferGeometry.prototype.addAttribute = function (name, attribute) {
	console.warn('THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute().');

	if (!(attribute && attribute.isBufferAttribute) && !(attribute && attribute.isInterleavedBufferAttribute)) {
		console.warn('THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).');
		return this.setAttribute(name, new BufferAttribute(arguments[1], arguments[2]));
	}

	if (name === 'index') {
		console.warn('THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.');
		this.setIndex(attribute);
		return this;
	}

	return this.setAttribute(name, attribute);
};

BufferGeometry.prototype.addDrawCall = function (start, count, indexOffset) {
	if (indexOffset !== undefined) {
		console.warn('THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.');
	}

	console.warn('THREE.BufferGeometry: .addDrawCall() is now .addGroup().');
	this.addGroup(start, count);
};

BufferGeometry.prototype.clearDrawCalls = function () {
	console.warn('THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().');
	this.clearGroups();
};

BufferGeometry.prototype.computeOffsets = function () {
	console.warn('THREE.BufferGeometry: .computeOffsets() has been removed.');
};

BufferGeometry.prototype.removeAttribute = function (name) {
	console.warn('THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute().');
	return this.deleteAttribute(name);
};

BufferGeometry.prototype.applyMatrix = function (matrix) {
	console.warn('THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4().');
	return this.applyMatrix4(matrix);
};

Object.defineProperties(BufferGeometry.prototype, {
	drawcalls: {
		get: function () {
			console.error('THREE.BufferGeometry: .drawcalls has been renamed to .groups.');
			return this.groups;
		}
	},
	offsets: {
		get: function () {
			console.warn('THREE.BufferGeometry: .offsets has been renamed to .groups.');
			return this.groups;
		}
	}
});

InterleavedBuffer.prototype.setDynamic = function (value) {
	console.warn('THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead.');
	this.setUsage(value === true ? DynamicDrawUsage : StaticDrawUsage);
	return this;
};

InterleavedBuffer.prototype.setArray = function
	/* array */
() {
	console.error('THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers');
}; //


ExtrudeGeometry.prototype.getArrays = function () {
	console.error('THREE.ExtrudeGeometry: .getArrays() has been removed.');
};

ExtrudeGeometry.prototype.addShapeList = function () {
	console.error('THREE.ExtrudeGeometry: .addShapeList() has been removed.');
};

ExtrudeGeometry.prototype.addShape = function () {
	console.error('THREE.ExtrudeGeometry: .addShape() has been removed.');
}; //


Scene.prototype.dispose = function () {
	console.error('THREE.Scene: .dispose() has been removed.');
}; //


Uniform.prototype.onUpdate = function () {
	console.warn('THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.');
	return this;
}; //


Object.defineProperties(Material.prototype, {
	wrapAround: {
		get: function () {
			console.warn('THREE.Material: .wrapAround has been removed.');
		},
		set: function () {
			console.warn('THREE.Material: .wrapAround has been removed.');
		}
	},
	overdraw: {
		get: function () {
			console.warn('THREE.Material: .overdraw has been removed.');
		},
		set: function () {
			console.warn('THREE.Material: .overdraw has been removed.');
		}
	},
	wrapRGB: {
		get: function () {
			console.warn('THREE.Material: .wrapRGB has been removed.');
			return new Color();
		}
	},
	shading: {
		get: function () {
			console.error('THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.');
		},
		set: function (value) {
			console.warn('THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.');
			this.flatShading = value === FlatShading;
		}
	},
	stencilMask: {
		get: function () {
			console.warn('THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.');
			return this.stencilFuncMask;
		},
		set: function (value) {
			console.warn('THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.');
			this.stencilFuncMask = value;
		}
	},
	vertexTangents: {
		get: function () {
			console.warn('THREE.' + this.type + ': .vertexTangents has been removed.');
		},
		set: function () {
			console.warn('THREE.' + this.type + ': .vertexTangents has been removed.');
		}
	}
});
Object.defineProperties(ShaderMaterial.prototype, {
	derivatives: {
		get: function () {
			console.warn('THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.');
			return this.extensions.derivatives;
		},
		set: function (value) {
			console.warn('THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.');
			this.extensions.derivatives = value;
		}
	}
}); //

WebGLRenderer.prototype.clearTarget = function (renderTarget, color, depth, stencil) {
	console.warn('THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead.');
	this.setRenderTarget(renderTarget);
	this.clear(color, depth, stencil);
};

WebGLRenderer.prototype.animate = function (callback) {
	console.warn('THREE.WebGLRenderer: .animate() is now .setAnimationLoop().');
	this.setAnimationLoop(callback);
};

WebGLRenderer.prototype.getCurrentRenderTarget = function () {
	console.warn('THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().');
	return this.getRenderTarget();
};

WebGLRenderer.prototype.getMaxAnisotropy = function () {
	console.warn('THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().');
	return this.capabilities.getMaxAnisotropy();
};

WebGLRenderer.prototype.getPrecision = function () {
	console.warn('THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.');
	return this.capabilities.precision;
};

WebGLRenderer.prototype.resetGLState = function () {
	console.warn('THREE.WebGLRenderer: .resetGLState() is now .state.reset().');
	return this.state.reset();
};

WebGLRenderer.prototype.supportsFloatTextures = function () {
	console.warn('THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).');
	return this.extensions.get('OES_texture_float');
};

WebGLRenderer.prototype.supportsHalfFloatTextures = function () {
	console.warn('THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).');
	return this.extensions.get('OES_texture_half_float');
};

WebGLRenderer.prototype.supportsStandardDerivatives = function () {
	console.warn('THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).');
	return this.extensions.get('OES_standard_derivatives');
};

WebGLRenderer.prototype.supportsCompressedTextureS3TC = function () {
	console.warn('THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).');
	return this.extensions.get('WEBGL_compressed_texture_s3tc');
};

WebGLRenderer.prototype.supportsCompressedTexturePVRTC = function () {
	console.warn('THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).');
	return this.extensions.get('WEBGL_compressed_texture_pvrtc');
};

WebGLRenderer.prototype.supportsBlendMinMax = function () {
	console.warn('THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).');
	return this.extensions.get('EXT_blend_minmax');
};

WebGLRenderer.prototype.supportsVertexTextures = function () {
	console.warn('THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.');
	return this.capabilities.vertexTextures;
};

WebGLRenderer.prototype.supportsInstancedArrays = function () {
	console.warn('THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).');
	return this.extensions.get('ANGLE_instanced_arrays');
};

WebGLRenderer.prototype.enableScissorTest = function (boolean) {
	console.warn('THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().');
	this.setScissorTest(boolean);
};

WebGLRenderer.prototype.initMaterial = function () {
	console.warn('THREE.WebGLRenderer: .initMaterial() has been removed.');
};

WebGLRenderer.prototype.addPrePlugin = function () {
	console.warn('THREE.WebGLRenderer: .addPrePlugin() has been removed.');
};

WebGLRenderer.prototype.addPostPlugin = function () {
	console.warn('THREE.WebGLRenderer: .addPostPlugin() has been removed.');
};

WebGLRenderer.prototype.updateShadowMap = function () {
	console.warn('THREE.WebGLRenderer: .updateShadowMap() has been removed.');
};

WebGLRenderer.prototype.setFaceCulling = function () {
	console.warn('THREE.WebGLRenderer: .setFaceCulling() has been removed.');
};

WebGLRenderer.prototype.allocTextureUnit = function () {
	console.warn('THREE.WebGLRenderer: .allocTextureUnit() has been removed.');
};

WebGLRenderer.prototype.setTexture = function () {
	console.warn('THREE.WebGLRenderer: .setTexture() has been removed.');
};

WebGLRenderer.prototype.setTexture2D = function () {
	console.warn('THREE.WebGLRenderer: .setTexture2D() has been removed.');
};

WebGLRenderer.prototype.setTextureCube = function () {
	console.warn('THREE.WebGLRenderer: .setTextureCube() has been removed.');
};

WebGLRenderer.prototype.getActiveMipMapLevel = function () {
	console.warn('THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel().');
	return this.getActiveMipmapLevel();
};

Object.defineProperties(WebGLRenderer.prototype, {
	shadowMapEnabled: {
		get: function () {
			return this.shadowMap.enabled;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.');
			this.shadowMap.enabled = value;
		}
	},
	shadowMapType: {
		get: function () {
			return this.shadowMap.type;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.');
			this.shadowMap.type = value;
		}
	},
	shadowMapCullFace: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.');
			return undefined;
		},
		set: function
			/* value */
		() {
			console.warn('THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.');
		}
	},
	context: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .context has been removed. Use .getContext() instead.');
			return this.getContext();
		}
	},
	vr: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .vr has been renamed to .xr');
			return this.xr;
		}
	},
	gammaInput: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.');
			return false;
		},
		set: function () {
			console.warn('THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.');
		}
	},
	gammaOutput: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.');
			return false;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.');
			this.outputEncoding = value === true ? sRGBEncoding : LinearEncoding;
		}
	},
	toneMappingWhitePoint: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.');
			return 1.0;
		},
		set: function () {
			console.warn('THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.');
		}
	},
	gammaFactor: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .gammaFactor has been removed.');
			return 2;
		},
		set: function () {
			console.warn('THREE.WebGLRenderer: .gammaFactor has been removed.');
		}
	}
});
Object.defineProperties(WebGLShadowMap.prototype, {
	cullFace: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.');
			return undefined;
		},
		set: function
			/* cullFace */
		() {
			console.warn('THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.');
		}
	},
	renderReverseSided: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.');
			return undefined;
		},
		set: function () {
			console.warn('THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.');
		}
	},
	renderSingleSided: {
		get: function () {
			console.warn('THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.');
			return undefined;
		},
		set: function () {
			console.warn('THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.');
		}
	}
});
function WebGLRenderTargetCube(width, height, options) {
	console.warn('THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options ).');
	return new WebGLCubeRenderTarget(width, options);
} //

Object.defineProperties(WebGLRenderTarget.prototype, {
	wrapS: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.');
			return this.texture.wrapS;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.');
			this.texture.wrapS = value;
		}
	},
	wrapT: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.');
			return this.texture.wrapT;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.');
			this.texture.wrapT = value;
		}
	},
	magFilter: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.');
			return this.texture.magFilter;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.');
			this.texture.magFilter = value;
		}
	},
	minFilter: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.');
			return this.texture.minFilter;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.');
			this.texture.minFilter = value;
		}
	},
	anisotropy: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.');
			return this.texture.anisotropy;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.');
			this.texture.anisotropy = value;
		}
	},
	offset: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .offset is now .texture.offset.');
			return this.texture.offset;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .offset is now .texture.offset.');
			this.texture.offset = value;
		}
	},
	repeat: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .repeat is now .texture.repeat.');
			return this.texture.repeat;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .repeat is now .texture.repeat.');
			this.texture.repeat = value;
		}
	},
	format: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .format is now .texture.format.');
			return this.texture.format;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .format is now .texture.format.');
			this.texture.format = value;
		}
	},
	type: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .type is now .texture.type.');
			return this.texture.type;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .type is now .texture.type.');
			this.texture.type = value;
		}
	},
	generateMipmaps: {
		get: function () {
			console.warn('THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.');
			return this.texture.generateMipmaps;
		},
		set: function (value) {
			console.warn('THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.');
			this.texture.generateMipmaps = value;
		}
	}
}); //

Audio.prototype.load = function (file) {
	console.warn('THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.');
	const scope = this;
	const audioLoader = new AudioLoader();
	audioLoader.load(file, function (buffer) {
		scope.setBuffer(buffer);
	});
	return this;
};

AudioAnalyser.prototype.getData = function () {
	console.warn('THREE.AudioAnalyser: .getData() is now .getFrequencyData().');
	return this.getFrequencyData();
}; //


CubeCamera.prototype.updateCubeMap = function (renderer, scene) {
	console.warn('THREE.CubeCamera: .updateCubeMap() is now .update().');
	return this.update(renderer, scene);
};

CubeCamera.prototype.clear = function (renderer, color, depth, stencil) {
	console.warn('THREE.CubeCamera: .clear() is now .renderTarget.clear().');
	return this.renderTarget.clear(renderer, color, depth, stencil);
};

ImageUtils.crossOrigin = undefined;

ImageUtils.loadTexture = function (url, mapping, onLoad, onError) {
	console.warn('THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.');
	const loader = new TextureLoader();
	loader.setCrossOrigin(this.crossOrigin);
	const texture = loader.load(url, onLoad, undefined, onError);
	if (mapping) texture.mapping = mapping;
	return texture;
};

ImageUtils.loadTextureCube = function (urls, mapping, onLoad, onError) {
	console.warn('THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.');
	const loader = new CubeTextureLoader();
	loader.setCrossOrigin(this.crossOrigin);
	const texture = loader.load(urls, onLoad, undefined, onError);
	if (mapping) texture.mapping = mapping;
	return texture;
};

ImageUtils.loadCompressedTexture = function () {
	console.error('THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.');
};

ImageUtils.loadCompressedTextureCube = function () {
	console.error('THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.');
}; //


function CanvasRenderer() {
	console.error('THREE.CanvasRenderer has been removed');
} //

function JSONLoader() {
	console.error('THREE.JSONLoader has been removed.');
} //

const SceneUtils = {
	createMultiMaterialObject: function
		/* geometry, materials */
	() {
		console.error('THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js');
	},
	detach: function
		/* child, parent, scene */
	() {
		console.error('THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js');
	},
	attach: function
		/* child, scene, parent */
	() {
		console.error('THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js');
	}
}; //

function LensFlare() {
	console.error('THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js');
} //

function ParametricGeometry() {
	console.error('THREE.ParametricGeometry has been moved to /examples/jsm/geometries/ParametricGeometry.js');
	return new BufferGeometry();
}
function TextGeometry() {
	console.error('THREE.TextGeometry has been moved to /examples/jsm/geometries/TextGeometry.js');
	return new BufferGeometry();
}
function FontLoader() {
	console.error('THREE.FontLoader has been moved to /examples/jsm/loaders/FontLoader.js');
}
function Font() {
	console.error('THREE.Font has been moved to /examples/jsm/loaders/FontLoader.js');
}
function ImmediateRenderObject() {
	console.error('THREE.ImmediateRenderObject has been removed.');
}

if (typeof __THREE_DEVTOOLS__ !== 'undefined') {
	__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('register', {
		detail: {
			revision: REVISION
		}
	}));
}

if (typeof window !== 'undefined') {
	if (window.__THREE__) {
		console.warn('WARNING: Multiple instances of Three.js being imported.');
	} else {
		window.__THREE__ = REVISION;
	}
}

exports.ACESFilmicToneMapping = ACESFilmicToneMapping;
exports.AddEquation = AddEquation;
exports.AddOperation = AddOperation;
exports.AdditiveAnimationBlendMode = AdditiveAnimationBlendMode;
exports.AdditiveBlending = AdditiveBlending;
exports.AlphaFormat = AlphaFormat;
exports.AlwaysDepth = AlwaysDepth;
exports.AlwaysStencilFunc = AlwaysStencilFunc;
exports.AmbientLight = AmbientLight;
exports.AmbientLightProbe = AmbientLightProbe;
exports.AnimationClip = AnimationClip;
exports.AnimationLoader = AnimationLoader;
exports.AnimationMixer = AnimationMixer;
exports.AnimationObjectGroup = AnimationObjectGroup;
exports.AnimationUtils = AnimationUtils;
exports.ArcCurve = ArcCurve;
exports.ArrayCamera = ArrayCamera;
exports.ArrowHelper = ArrowHelper;
exports.Audio = Audio;
exports.AudioAnalyser = AudioAnalyser;
exports.AudioContext = AudioContext;
exports.AudioListener = AudioListener;
exports.AudioLoader = AudioLoader;
exports.AxesHelper = AxesHelper;
exports.AxisHelper = AxisHelper;
exports.BackSide = BackSide;
exports.BasicDepthPacking = BasicDepthPacking;
exports.BasicShadowMap = BasicShadowMap;
exports.BinaryTextureLoader = BinaryTextureLoader;
exports.Bone = Bone;
exports.BooleanKeyframeTrack = BooleanKeyframeTrack;
exports.BoundingBoxHelper = BoundingBoxHelper;
exports.Box2 = Box2;
exports.Box3 = Box3;
exports.Box3Helper = Box3Helper;
exports.BoxBufferGeometry = BoxGeometry;
exports.BoxGeometry = BoxGeometry;
exports.BoxHelper = BoxHelper;
exports.BufferAttribute = BufferAttribute;
exports.BufferGeometry = BufferGeometry;
exports.BufferGeometryLoader = BufferGeometryLoader;
exports.ByteType = ByteType;
exports.Cache = Cache;
exports.Camera = Camera;
exports.CameraHelper = CameraHelper;
exports.CanvasRenderer = CanvasRenderer;
exports.CanvasTexture = CanvasTexture;
exports.CatmullRomCurve3 = CatmullRomCurve3;
exports.CineonToneMapping = CineonToneMapping;
exports.CircleBufferGeometry = CircleGeometry;
exports.CircleGeometry = CircleGeometry;
exports.ClampToEdgeWrapping = ClampToEdgeWrapping;
exports.Clock = Clock;
exports.Color = Color;
exports.ColorKeyframeTrack = ColorKeyframeTrack;
exports.CompressedTexture = CompressedTexture;
exports.CompressedTextureLoader = CompressedTextureLoader;
exports.ConeBufferGeometry = ConeGeometry;
exports.ConeGeometry = ConeGeometry;
exports.CubeCamera = CubeCamera;
exports.CubeReflectionMapping = CubeReflectionMapping;
exports.CubeRefractionMapping = CubeRefractionMapping;
exports.CubeTexture = CubeTexture;
exports.CubeTextureLoader = CubeTextureLoader;
exports.CubeUVReflectionMapping = CubeUVReflectionMapping;
exports.CubeUVRefractionMapping = CubeUVRefractionMapping;
exports.CubicBezierCurve = CubicBezierCurve;
exports.CubicBezierCurve3 = CubicBezierCurve3;
exports.CubicInterpolant = CubicInterpolant;
exports.CullFaceBack = CullFaceBack;
exports.CullFaceFront = CullFaceFront;
exports.CullFaceFrontBack = CullFaceFrontBack;
exports.CullFaceNone = CullFaceNone;
exports.Curve = Curve;
exports.CurvePath = CurvePath;
exports.CustomBlending = CustomBlending;
exports.CustomToneMapping = CustomToneMapping;
exports.CylinderBufferGeometry = CylinderGeometry;
exports.CylinderGeometry = CylinderGeometry;
exports.Cylindrical = Cylindrical;
exports.DataTexture = DataTexture;
exports.DataTexture2DArray = DataTexture2DArray;
exports.DataTexture3D = DataTexture3D;
exports.DataTextureLoader = DataTextureLoader;
exports.DataUtils = DataUtils;
exports.DecrementStencilOp = DecrementStencilOp;
exports.DecrementWrapStencilOp = DecrementWrapStencilOp;
exports.DefaultLoadingManager = DefaultLoadingManager;
exports.DepthFormat = DepthFormat;
exports.DepthStencilFormat = DepthStencilFormat;
exports.DepthTexture = DepthTexture;
exports.DirectionalLight = DirectionalLight;
exports.DirectionalLightHelper = DirectionalLightHelper;
exports.DiscreteInterpolant = DiscreteInterpolant;
exports.DodecahedronBufferGeometry = DodecahedronGeometry;
exports.DodecahedronGeometry = DodecahedronGeometry;
exports.DoubleSide = DoubleSide;
exports.DstAlphaFactor = DstAlphaFactor;
exports.DstColorFactor = DstColorFactor;
exports.DynamicBufferAttribute = DynamicBufferAttribute;
exports.DynamicCopyUsage = DynamicCopyUsage;
exports.DynamicDrawUsage = DynamicDrawUsage;
exports.DynamicReadUsage = DynamicReadUsage;
exports.EdgesGeometry = EdgesGeometry;
exports.EdgesHelper = EdgesHelper;
exports.EllipseCurve = EllipseCurve;
exports.EqualDepth = EqualDepth;
exports.EqualStencilFunc = EqualStencilFunc;
exports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;
exports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;
exports.Euler = Euler;
exports.EventDispatcher = EventDispatcher;
exports.ExtrudeBufferGeometry = ExtrudeGeometry;
exports.ExtrudeGeometry = ExtrudeGeometry;
exports.FaceColors = FaceColors;
exports.FileLoader = FileLoader;
exports.FlatShading = FlatShading;
exports.Float16BufferAttribute = Float16BufferAttribute;
exports.Float32Attribute = Float32Attribute;
exports.Float32BufferAttribute = Float32BufferAttribute;
exports.Float64Attribute = Float64Attribute;
exports.Float64BufferAttribute = Float64BufferAttribute;
exports.FloatType = FloatType;
exports.Fog = Fog;
exports.FogExp2 = FogExp2;
exports.Font = Font;
exports.FontLoader = FontLoader;
exports.FramebufferTexture = FramebufferTexture;
exports.FrontSide = FrontSide;
exports.Frustum = Frustum;
exports.GLBufferAttribute = GLBufferAttribute;
exports.GLSL1 = GLSL1;
exports.GLSL3 = GLSL3;
exports.GreaterDepth = GreaterDepth;
exports.GreaterEqualDepth = GreaterEqualDepth;
exports.GreaterEqualStencilFunc = GreaterEqualStencilFunc;
exports.GreaterStencilFunc = GreaterStencilFunc;
exports.GridHelper = GridHelper;
exports.Group = Group;
exports.HalfFloatType = HalfFloatType;
exports.HemisphereLight = HemisphereLight;
exports.HemisphereLightHelper = HemisphereLightHelper;
exports.HemisphereLightProbe = HemisphereLightProbe;
exports.IcosahedronBufferGeometry = IcosahedronGeometry;
exports.IcosahedronGeometry = IcosahedronGeometry;
exports.ImageBitmapLoader = ImageBitmapLoader;
exports.ImageLoader = ImageLoader;
exports.ImageUtils = ImageUtils;
exports.ImmediateRenderObject = ImmediateRenderObject;
exports.IncrementStencilOp = IncrementStencilOp;
exports.IncrementWrapStencilOp = IncrementWrapStencilOp;
exports.InstancedBufferAttribute = InstancedBufferAttribute;
exports.InstancedBufferGeometry = InstancedBufferGeometry;
exports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;
exports.InstancedMesh = InstancedMesh;
exports.Int16Attribute = Int16Attribute;
exports.Int16BufferAttribute = Int16BufferAttribute;
exports.Int32Attribute = Int32Attribute;
exports.Int32BufferAttribute = Int32BufferAttribute;
exports.Int8Attribute = Int8Attribute;
exports.Int8BufferAttribute = Int8BufferAttribute;
exports.IntType = IntType;
exports.InterleavedBuffer = InterleavedBuffer;
exports.InterleavedBufferAttribute = InterleavedBufferAttribute;
exports.Interpolant = Interpolant;
exports.InterpolateDiscrete = InterpolateDiscrete;
exports.InterpolateLinear = InterpolateLinear;
exports.InterpolateSmooth = InterpolateSmooth;
exports.InvertStencilOp = InvertStencilOp;
exports.JSONLoader = JSONLoader;
exports.KeepStencilOp = KeepStencilOp;
exports.KeyframeTrack = KeyframeTrack;
exports.LOD = LOD;
exports.LatheBufferGeometry = LatheGeometry;
exports.LatheGeometry = LatheGeometry;
exports.Layers = Layers;
exports.LensFlare = LensFlare;
exports.LessDepth = LessDepth;
exports.LessEqualDepth = LessEqualDepth;
exports.LessEqualStencilFunc = LessEqualStencilFunc;
exports.LessStencilFunc = LessStencilFunc;
exports.Light = Light;
exports.LightProbe = LightProbe;
exports.Line = Line;
exports.Line3 = Line3;
exports.LineBasicMaterial = LineBasicMaterial;
exports.LineCurve = LineCurve;
exports.LineCurve3 = LineCurve3;
exports.LineDashedMaterial = LineDashedMaterial;
exports.LineLoop = LineLoop;
exports.LinePieces = LinePieces;
exports.LineSegments = LineSegments;
exports.LineStrip = LineStrip;
exports.LinearEncoding = LinearEncoding;
exports.LinearFilter = LinearFilter;
exports.LinearInterpolant = LinearInterpolant;
exports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;
exports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;
exports.LinearMipmapLinearFilter = LinearMipmapLinearFilter;
exports.LinearMipmapNearestFilter = LinearMipmapNearestFilter;
exports.LinearToneMapping = LinearToneMapping;
exports.Loader = Loader;
exports.LoaderUtils = LoaderUtils;
exports.LoadingManager = LoadingManager;
exports.LoopOnce = LoopOnce;
exports.LoopPingPong = LoopPingPong;
exports.LoopRepeat = LoopRepeat;
exports.LuminanceAlphaFormat = LuminanceAlphaFormat;
exports.LuminanceFormat = LuminanceFormat;
exports.MOUSE = MOUSE;
exports.Material = Material;
exports.MaterialLoader = MaterialLoader;
exports.Math = MathUtils;
exports.MathUtils = MathUtils;
exports.Matrix3 = Matrix3;
exports.Matrix4 = Matrix4;
exports.MaxEquation = MaxEquation;
exports.Mesh = Mesh;
exports.MeshBasicMaterial = MeshBasicMaterial;
exports.MeshDepthMaterial = MeshDepthMaterial;
exports.MeshDistanceMaterial = MeshDistanceMaterial;
exports.MeshFaceMaterial = MeshFaceMaterial;
exports.MeshLambertMaterial = MeshLambertMaterial;
exports.MeshMatcapMaterial = MeshMatcapMaterial;
exports.MeshNormalMaterial = MeshNormalMaterial;
exports.MeshPhongMaterial = MeshPhongMaterial;
exports.MeshPhysicalMaterial = MeshPhysicalMaterial;
exports.MeshStandardMaterial = MeshStandardMaterial;
exports.MeshToonMaterial = MeshToonMaterial;
exports.MinEquation = MinEquation;
exports.MirroredRepeatWrapping = MirroredRepeatWrapping;
exports.MixOperation = MixOperation;
exports.MultiMaterial = MultiMaterial;
exports.MultiplyBlending = MultiplyBlending;
exports.MultiplyOperation = MultiplyOperation;
exports.NearestFilter = NearestFilter;
exports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;
exports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;
exports.NearestMipmapLinearFilter = NearestMipmapLinearFilter;
exports.NearestMipmapNearestFilter = NearestMipmapNearestFilter;
exports.NeverDepth = NeverDepth;
exports.NeverStencilFunc = NeverStencilFunc;
exports.NoBlending = NoBlending;
exports.NoColors = NoColors;
exports.NoToneMapping = NoToneMapping;
exports.NormalAnimationBlendMode = NormalAnimationBlendMode;
exports.NormalBlending = NormalBlending;
exports.NotEqualDepth = NotEqualDepth;
exports.NotEqualStencilFunc = NotEqualStencilFunc;
exports.NumberKeyframeTrack = NumberKeyframeTrack;
exports.Object3D = Object3D;
exports.ObjectLoader = ObjectLoader;
exports.ObjectSpaceNormalMap = ObjectSpaceNormalMap;
exports.OctahedronBufferGeometry = OctahedronGeometry;
exports.OctahedronGeometry = OctahedronGeometry;
exports.OneFactor = OneFactor;
exports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;
exports.OneMinusDstColorFactor = OneMinusDstColorFactor;
exports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;
exports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;
exports.OrthographicCamera = OrthographicCamera;
exports.PCFShadowMap = PCFShadowMap;
exports.PCFSoftShadowMap = PCFSoftShadowMap;
exports.PMREMGenerator = PMREMGenerator;
exports.ParametricGeometry = ParametricGeometry;
exports.Particle = Particle;
exports.ParticleBasicMaterial = ParticleBasicMaterial;
exports.ParticleSystem = ParticleSystem;
exports.ParticleSystemMaterial = ParticleSystemMaterial;
exports.Path = Path;
exports.PerspectiveCamera = PerspectiveCamera;
exports.Plane = Plane;
exports.PlaneBufferGeometry = PlaneGeometry;
exports.PlaneGeometry = PlaneGeometry;
exports.PlaneHelper = PlaneHelper;
exports.PointCloud = PointCloud;
exports.PointCloudMaterial = PointCloudMaterial;
exports.PointLight = PointLight;
exports.PointLightHelper = PointLightHelper;
exports.Points = Points;
exports.PointsMaterial = PointsMaterial;
exports.PolarGridHelper = PolarGridHelper;
exports.PolyhedronBufferGeometry = PolyhedronGeometry;
exports.PolyhedronGeometry = PolyhedronGeometry;
exports.PositionalAudio = PositionalAudio;
exports.PropertyBinding = PropertyBinding;
exports.PropertyMixer = PropertyMixer;
exports.QuadraticBezierCurve = QuadraticBezierCurve;
exports.QuadraticBezierCurve3 = QuadraticBezierCurve3;
exports.Quaternion = Quaternion;
exports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;
exports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;
exports.REVISION = REVISION;
exports.RGBADepthPacking = RGBADepthPacking;
exports.RGBAFormat = RGBAFormat;
exports.RGBAIntegerFormat = RGBAIntegerFormat;
exports.RGBA_ASTC_10x10_Format = RGBA_ASTC_10x10_Format;
exports.RGBA_ASTC_10x5_Format = RGBA_ASTC_10x5_Format;
exports.RGBA_ASTC_10x6_Format = RGBA_ASTC_10x6_Format;
exports.RGBA_ASTC_10x8_Format = RGBA_ASTC_10x8_Format;
exports.RGBA_ASTC_12x10_Format = RGBA_ASTC_12x10_Format;
exports.RGBA_ASTC_12x12_Format = RGBA_ASTC_12x12_Format;
exports.RGBA_ASTC_4x4_Format = RGBA_ASTC_4x4_Format;
exports.RGBA_ASTC_5x4_Format = RGBA_ASTC_5x4_Format;
exports.RGBA_ASTC_5x5_Format = RGBA_ASTC_5x5_Format;
exports.RGBA_ASTC_6x5_Format = RGBA_ASTC_6x5_Format;
exports.RGBA_ASTC_6x6_Format = RGBA_ASTC_6x6_Format;
exports.RGBA_ASTC_8x5_Format = RGBA_ASTC_8x5_Format;
exports.RGBA_ASTC_8x6_Format = RGBA_ASTC_8x6_Format;
exports.RGBA_ASTC_8x8_Format = RGBA_ASTC_8x8_Format;
exports.RGBA_BPTC_Format = RGBA_BPTC_Format;
exports.RGBA_ETC2_EAC_Format = RGBA_ETC2_EAC_Format;
exports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;
exports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;
exports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;
exports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;
exports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;
exports.RGBFormat = RGBFormat;
exports.RGB_ETC1_Format = RGB_ETC1_Format;
exports.RGB_ETC2_Format = RGB_ETC2_Format;
exports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;
exports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;
exports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;
exports.RGFormat = RGFormat;
exports.RGIntegerFormat = RGIntegerFormat;
exports.RawShaderMaterial = RawShaderMaterial;
exports.Ray = Ray;
exports.Raycaster = Raycaster;
exports.RectAreaLight = RectAreaLight;
exports.RedFormat = RedFormat;
exports.RedIntegerFormat = RedIntegerFormat;
exports.ReinhardToneMapping = ReinhardToneMapping;
exports.RepeatWrapping = RepeatWrapping;
exports.ReplaceStencilOp = ReplaceStencilOp;
exports.ReverseSubtractEquation = ReverseSubtractEquation;
exports.RingBufferGeometry = RingGeometry;
exports.RingGeometry = RingGeometry;
exports.Scene = Scene;
exports.SceneUtils = SceneUtils;
exports.ShaderChunk = ShaderChunk;
exports.ShaderLib = ShaderLib;
exports.ShaderMaterial = ShaderMaterial;
exports.ShadowMaterial = ShadowMaterial;
exports.Shape = Shape;
exports.ShapeBufferGeometry = ShapeGeometry;
exports.ShapeGeometry = ShapeGeometry;
exports.ShapePath = ShapePath;
exports.ShapeUtils = ShapeUtils;
exports.ShortType = ShortType;
exports.Skeleton = Skeleton;
exports.SkeletonHelper = SkeletonHelper;
exports.SkinnedMesh = SkinnedMesh;
exports.SmoothShading = SmoothShading;
exports.Sphere = Sphere;
exports.SphereBufferGeometry = SphereGeometry;
exports.SphereGeometry = SphereGeometry;
exports.Spherical = Spherical;
exports.SphericalHarmonics3 = SphericalHarmonics3;
exports.SplineCurve = SplineCurve;
exports.SpotLight = SpotLight;
exports.SpotLightHelper = SpotLightHelper;
exports.Sprite = Sprite;
exports.SpriteMaterial = SpriteMaterial;
exports.SrcAlphaFactor = SrcAlphaFactor;
exports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;
exports.SrcColorFactor = SrcColorFactor;
exports.StaticCopyUsage = StaticCopyUsage;
exports.StaticDrawUsage = StaticDrawUsage;
exports.StaticReadUsage = StaticReadUsage;
exports.StereoCamera = StereoCamera;
exports.StreamCopyUsage = StreamCopyUsage;
exports.StreamDrawUsage = StreamDrawUsage;
exports.StreamReadUsage = StreamReadUsage;
exports.StringKeyframeTrack = StringKeyframeTrack;
exports.SubtractEquation = SubtractEquation;
exports.SubtractiveBlending = SubtractiveBlending;
exports.TOUCH = TOUCH;
exports.TangentSpaceNormalMap = TangentSpaceNormalMap;
exports.TetrahedronBufferGeometry = TetrahedronGeometry;
exports.TetrahedronGeometry = TetrahedronGeometry;
exports.TextGeometry = TextGeometry;
exports.Texture = Texture;
exports.TextureLoader = TextureLoader;
exports.TorusBufferGeometry = TorusGeometry;
exports.TorusGeometry = TorusGeometry;
exports.TorusKnotBufferGeometry = TorusKnotGeometry;
exports.TorusKnotGeometry = TorusKnotGeometry;
exports.Triangle = Triangle;
exports.TriangleFanDrawMode = TriangleFanDrawMode;
exports.TriangleStripDrawMode = TriangleStripDrawMode;
exports.TrianglesDrawMode = TrianglesDrawMode;
exports.TubeBufferGeometry = TubeGeometry;
exports.TubeGeometry = TubeGeometry;
exports.UVMapping = UVMapping;
exports.Uint16Attribute = Uint16Attribute;
exports.Uint16BufferAttribute = Uint16BufferAttribute;
exports.Uint32Attribute = Uint32Attribute;
exports.Uint32BufferAttribute = Uint32BufferAttribute;
exports.Uint8Attribute = Uint8Attribute;
exports.Uint8BufferAttribute = Uint8BufferAttribute;
exports.Uint8ClampedAttribute = Uint8ClampedAttribute;
exports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;
exports.Uniform = Uniform;
exports.UniformsLib = UniformsLib;
exports.UniformsUtils = UniformsUtils;
exports.UnsignedByteType = UnsignedByteType;
exports.UnsignedInt248Type = UnsignedInt248Type;
exports.UnsignedIntType = UnsignedIntType;
exports.UnsignedShort4444Type = UnsignedShort4444Type;
exports.UnsignedShort5551Type = UnsignedShort5551Type;
exports.UnsignedShortType = UnsignedShortType;
exports.VSMShadowMap = VSMShadowMap;
exports.Vector2 = Vector2;
exports.Vector3 = Vector3;
exports.Vector4 = Vector4;
exports.VectorKeyframeTrack = VectorKeyframeTrack;
exports.Vertex = Vertex;
exports.VertexColors = VertexColors;
exports.VideoTexture = VideoTexture;
exports.WebGL1Renderer = WebGL1Renderer;
exports.WebGLCubeRenderTarget = WebGLCubeRenderTarget;
exports.WebGLMultipleRenderTargets = WebGLMultipleRenderTargets;
exports.WebGLMultisampleRenderTarget = WebGLMultisampleRenderTarget;
exports.WebGLRenderTarget = WebGLRenderTarget;
exports.WebGLRenderTargetCube = WebGLRenderTargetCube;
exports.WebGLRenderer = WebGLRenderer;
exports.WebGLUtils = WebGLUtils;
exports.WireframeGeometry = WireframeGeometry;
exports.WireframeHelper = WireframeHelper;
exports.WrapAroundEnding = WrapAroundEnding;
exports.XHRLoader = XHRLoader;
exports.ZeroCurvatureEnding = ZeroCurvatureEnding;
exports.ZeroFactor = ZeroFactor;
exports.ZeroSlopeEnding = ZeroSlopeEnding;
exports.ZeroStencilOp = ZeroStencilOp;
exports._SRGBAFormat = _SRGBAFormat;
exports.sRGBEncoding = sRGBEncoding;


/***/ }),

/***/ "./node_modules/@babel/runtime/helpers/esm/defineProperty.js":
/*!*******************************************************************!*\
  !*** ./node_modules/@babel/runtime/helpers/esm/defineProperty.js ***!
  \*******************************************************************/
/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (/* binding */ _defineProperty)
/* harmony export */ });
function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

/***/ }),

/***/ "./node_modules/three/build/three.module.js":
/*!**************************************************!*\
  !*** ./node_modules/three/build/three.module.js ***!
  \**************************************************/
/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "ACESFilmicToneMapping": () => (/* binding */ ACESFilmicToneMapping),
/* harmony export */   "AddEquation": () => (/* binding */ AddEquation),
/* harmony export */   "AddOperation": () => (/* binding */ AddOperation),
/* harmony export */   "AdditiveAnimationBlendMode": () => (/* binding */ AdditiveAnimationBlendMode),
/* harmony export */   "AdditiveBlending": () => (/* binding */ AdditiveBlending),
/* harmony export */   "AlphaFormat": () => (/* binding */ AlphaFormat),
/* harmony export */   "AlwaysDepth": () => (/* binding */ AlwaysDepth),
/* harmony export */   "AlwaysStencilFunc": () => (/* binding */ AlwaysStencilFunc),
/* harmony export */   "AmbientLight": () => (/* binding */ AmbientLight),
/* harmony export */   "AmbientLightProbe": () => (/* binding */ AmbientLightProbe),
/* harmony export */   "AnimationClip": () => (/* binding */ AnimationClip),
/* harmony export */   "AnimationLoader": () => (/* binding */ AnimationLoader),
/* harmony export */   "AnimationMixer": () => (/* binding */ AnimationMixer),
/* harmony export */   "AnimationObjectGroup": () => (/* binding */ AnimationObjectGroup),
/* harmony export */   "AnimationUtils": () => (/* binding */ AnimationUtils),
/* harmony export */   "ArcCurve": () => (/* binding */ ArcCurve),
/* harmony export */   "ArrayCamera": () => (/* binding */ ArrayCamera),
/* harmony export */   "ArrowHelper": () => (/* binding */ ArrowHelper),
/* harmony export */   "Audio": () => (/* binding */ Audio),
/* harmony export */   "AudioAnalyser": () => (/* binding */ AudioAnalyser),
/* harmony export */   "AudioContext": () => (/* binding */ AudioContext),
/* harmony export */   "AudioListener": () => (/* binding */ AudioListener),
/* harmony export */   "AudioLoader": () => (/* binding */ AudioLoader),
/* harmony export */   "AxesHelper": () => (/* binding */ AxesHelper),
/* harmony export */   "AxisHelper": () => (/* binding */ AxisHelper),
/* harmony export */   "BackSide": () => (/* binding */ BackSide),
/* harmony export */   "BasicDepthPacking": () => (/* binding */ BasicDepthPacking),
/* harmony export */   "BasicShadowMap": () => (/* binding */ BasicShadowMap),
/* harmony export */   "BinaryTextureLoader": () => (/* binding */ BinaryTextureLoader),
/* harmony export */   "Bone": () => (/* binding */ Bone),
/* harmony export */   "BooleanKeyframeTrack": () => (/* binding */ BooleanKeyframeTrack),
/* harmony export */   "BoundingBoxHelper": () => (/* binding */ BoundingBoxHelper),
/* harmony export */   "Box2": () => (/* binding */ Box2),
/* harmony export */   "Box3": () => (/* binding */ Box3),
/* harmony export */   "Box3Helper": () => (/* binding */ Box3Helper),
/* harmony export */   "BoxBufferGeometry": () => (/* binding */ BoxGeometry),
/* harmony export */   "BoxGeometry": () => (/* binding */ BoxGeometry),
/* harmony export */   "BoxHelper": () => (/* binding */ BoxHelper),
/* harmony export */   "BufferAttribute": () => (/* binding */ BufferAttribute),
/* harmony export */   "BufferGeometry": () => (/* binding */ BufferGeometry),
/* harmony export */   "BufferGeometryLoader": () => (/* binding */ BufferGeometryLoader),
/* harmony export */   "ByteType": () => (/* binding */ ByteType),
/* harmony export */   "Cache": () => (/* binding */ Cache),
/* harmony export */   "Camera": () => (/* binding */ Camera),
/* harmony export */   "CameraHelper": () => (/* binding */ CameraHelper),
/* harmony export */   "CanvasRenderer": () => (/* binding */ CanvasRenderer),
/* harmony export */   "CanvasTexture": () => (/* binding */ CanvasTexture),
/* harmony export */   "CatmullRomCurve3": () => (/* binding */ CatmullRomCurve3),
/* harmony export */   "CineonToneMapping": () => (/* binding */ CineonToneMapping),
/* harmony export */   "CircleBufferGeometry": () => (/* binding */ CircleGeometry),
/* harmony export */   "CircleGeometry": () => (/* binding */ CircleGeometry),
/* harmony export */   "ClampToEdgeWrapping": () => (/* binding */ ClampToEdgeWrapping),
/* harmony export */   "Clock": () => (/* binding */ Clock),
/* harmony export */   "Color": () => (/* binding */ Color),
/* harmony export */   "ColorKeyframeTrack": () => (/* binding */ ColorKeyframeTrack),
/* harmony export */   "CompressedTexture": () => (/* binding */ CompressedTexture),
/* harmony export */   "CompressedTextureLoader": () => (/* binding */ CompressedTextureLoader),
/* harmony export */   "ConeBufferGeometry": () => (/* binding */ ConeGeometry),
/* harmony export */   "ConeGeometry": () => (/* binding */ ConeGeometry),
/* harmony export */   "CubeCamera": () => (/* binding */ CubeCamera),
/* harmony export */   "CubeReflectionMapping": () => (/* binding */ CubeReflectionMapping),
/* harmony export */   "CubeRefractionMapping": () => (/* binding */ CubeRefractionMapping),
/* harmony export */   "CubeTexture": () => (/* binding */ CubeTexture),
/* harmony export */   "CubeTextureLoader": () => (/* binding */ CubeTextureLoader),
/* harmony export */   "CubeUVReflectionMapping": () => (/* binding */ CubeUVReflectionMapping),
/* harmony export */   "CubeUVRefractionMapping": () => (/* binding */ CubeUVRefractionMapping),
/* harmony export */   "CubicBezierCurve": () => (/* binding */ CubicBezierCurve),
/* harmony export */   "CubicBezierCurve3": () => (/* binding */ CubicBezierCurve3),
/* harmony export */   "CubicInterpolant": () => (/* binding */ CubicInterpolant),
/* harmony export */   "CullFaceBack": () => (/* binding */ CullFaceBack),
/* harmony export */   "CullFaceFront": () => (/* binding */ CullFaceFront),
/* harmony export */   "CullFaceFrontBack": () => (/* binding */ CullFaceFrontBack),
/* harmony export */   "CullFaceNone": () => (/* binding */ CullFaceNone),
/* harmony export */   "Curve": () => (/* binding */ Curve),
/* harmony export */   "CurvePath": () => (/* binding */ CurvePath),
/* harmony export */   "CustomBlending": () => (/* binding */ CustomBlending),
/* harmony export */   "CustomToneMapping": () => (/* binding */ CustomToneMapping),
/* harmony export */   "CylinderBufferGeometry": () => (/* binding */ CylinderGeometry),
/* harmony export */   "CylinderGeometry": () => (/* binding */ CylinderGeometry),
/* harmony export */   "Cylindrical": () => (/* binding */ Cylindrical),
/* harmony export */   "DataTexture": () => (/* binding */ DataTexture),
/* harmony export */   "DataTexture2DArray": () => (/* binding */ DataTexture2DArray),
/* harmony export */   "DataTexture3D": () => (/* binding */ DataTexture3D),
/* harmony export */   "DataTextureLoader": () => (/* binding */ DataTextureLoader),
/* harmony export */   "DataUtils": () => (/* binding */ DataUtils),
/* harmony export */   "DecrementStencilOp": () => (/* binding */ DecrementStencilOp),
/* harmony export */   "DecrementWrapStencilOp": () => (/* binding */ DecrementWrapStencilOp),
/* harmony export */   "DefaultLoadingManager": () => (/* binding */ DefaultLoadingManager),
/* harmony export */   "DepthFormat": () => (/* binding */ DepthFormat),
/* harmony export */   "DepthStencilFormat": () => (/* binding */ DepthStencilFormat),
/* harmony export */   "DepthTexture": () => (/* binding */ DepthTexture),
/* harmony export */   "DirectionalLight": () => (/* binding */ DirectionalLight),
/* harmony export */   "DirectionalLightHelper": () => (/* binding */ DirectionalLightHelper),
/* harmony export */   "DiscreteInterpolant": () => (/* binding */ DiscreteInterpolant),
/* harmony export */   "DodecahedronBufferGeometry": () => (/* binding */ DodecahedronGeometry),
/* harmony export */   "DodecahedronGeometry": () => (/* binding */ DodecahedronGeometry),
/* harmony export */   "DoubleSide": () => (/* binding */ DoubleSide),
/* harmony export */   "DstAlphaFactor": () => (/* binding */ DstAlphaFactor),
/* harmony export */   "DstColorFactor": () => (/* binding */ DstColorFactor),
/* harmony export */   "DynamicBufferAttribute": () => (/* binding */ DynamicBufferAttribute),
/* harmony export */   "DynamicCopyUsage": () => (/* binding */ DynamicCopyUsage),
/* harmony export */   "DynamicDrawUsage": () => (/* binding */ DynamicDrawUsage),
/* harmony export */   "DynamicReadUsage": () => (/* binding */ DynamicReadUsage),
/* harmony export */   "EdgesGeometry": () => (/* binding */ EdgesGeometry),
/* harmony export */   "EdgesHelper": () => (/* binding */ EdgesHelper),
/* harmony export */   "EllipseCurve": () => (/* binding */ EllipseCurve),
/* harmony export */   "EqualDepth": () => (/* binding */ EqualDepth),
/* harmony export */   "EqualStencilFunc": () => (/* binding */ EqualStencilFunc),
/* harmony export */   "EquirectangularReflectionMapping": () => (/* binding */ EquirectangularReflectionMapping),
/* harmony export */   "EquirectangularRefractionMapping": () => (/* binding */ EquirectangularRefractionMapping),
/* harmony export */   "Euler": () => (/* binding */ Euler),
/* harmony export */   "EventDispatcher": () => (/* binding */ EventDispatcher),
/* harmony export */   "ExtrudeBufferGeometry": () => (/* binding */ ExtrudeGeometry),
/* harmony export */   "ExtrudeGeometry": () => (/* binding */ ExtrudeGeometry),
/* harmony export */   "FaceColors": () => (/* binding */ FaceColors),
/* harmony export */   "FileLoader": () => (/* binding */ FileLoader),
/* harmony export */   "FlatShading": () => (/* binding */ FlatShading),
/* harmony export */   "Float16BufferAttribute": () => (/* binding */ Float16BufferAttribute),
/* harmony export */   "Float32Attribute": () => (/* binding */ Float32Attribute),
/* harmony export */   "Float32BufferAttribute": () => (/* binding */ Float32BufferAttribute),
/* harmony export */   "Float64Attribute": () => (/* binding */ Float64Attribute),
/* harmony export */   "Float64BufferAttribute": () => (/* binding */ Float64BufferAttribute),
/* harmony export */   "FloatType": () => (/* binding */ FloatType),
/* harmony export */   "Fog": () => (/* binding */ Fog),
/* harmony export */   "FogExp2": () => (/* binding */ FogExp2),
/* harmony export */   "Font": () => (/* binding */ Font),
/* harmony export */   "FontLoader": () => (/* binding */ FontLoader),
/* harmony export */   "FramebufferTexture": () => (/* binding */ FramebufferTexture),
/* harmony export */   "FrontSide": () => (/* binding */ FrontSide),
/* harmony export */   "Frustum": () => (/* binding */ Frustum),
/* harmony export */   "GLBufferAttribute": () => (/* binding */ GLBufferAttribute),
/* harmony export */   "GLSL1": () => (/* binding */ GLSL1),
/* harmony export */   "GLSL3": () => (/* binding */ GLSL3),
/* harmony export */   "GreaterDepth": () => (/* binding */ GreaterDepth),
/* harmony export */   "GreaterEqualDepth": () => (/* binding */ GreaterEqualDepth),
/* harmony export */   "GreaterEqualStencilFunc": () => (/* binding */ GreaterEqualStencilFunc),
/* harmony export */   "GreaterStencilFunc": () => (/* binding */ GreaterStencilFunc),
/* harmony export */   "GridHelper": () => (/* binding */ GridHelper),
/* harmony export */   "Group": () => (/* binding */ Group),
/* harmony export */   "HalfFloatType": () => (/* binding */ HalfFloatType),
/* harmony export */   "HemisphereLight": () => (/* binding */ HemisphereLight),
/* harmony export */   "HemisphereLightHelper": () => (/* binding */ HemisphereLightHelper),
/* harmony export */   "HemisphereLightProbe": () => (/* binding */ HemisphereLightProbe),
/* harmony export */   "IcosahedronBufferGeometry": () => (/* binding */ IcosahedronGeometry),
/* harmony export */   "IcosahedronGeometry": () => (/* binding */ IcosahedronGeometry),
/* harmony export */   "ImageBitmapLoader": () => (/* binding */ ImageBitmapLoader),
/* harmony export */   "ImageLoader": () => (/* binding */ ImageLoader),
/* harmony export */   "ImageUtils": () => (/* binding */ ImageUtils),
/* harmony export */   "ImmediateRenderObject": () => (/* binding */ ImmediateRenderObject),
/* harmony export */   "IncrementStencilOp": () => (/* binding */ IncrementStencilOp),
/* harmony export */   "IncrementWrapStencilOp": () => (/* binding */ IncrementWrapStencilOp),
/* harmony export */   "InstancedBufferAttribute": () => (/* binding */ InstancedBufferAttribute),
/* harmony export */   "InstancedBufferGeometry": () => (/* binding */ InstancedBufferGeometry),
/* harmony export */   "InstancedInterleavedBuffer": () => (/* binding */ InstancedInterleavedBuffer),
/* harmony export */   "InstancedMesh": () => (/* binding */ InstancedMesh),
/* harmony export */   "Int16Attribute": () => (/* binding */ Int16Attribute),
/* harmony export */   "Int16BufferAttribute": () => (/* binding */ Int16BufferAttribute),
/* harmony export */   "Int32Attribute": () => (/* binding */ Int32Attribute),
/* harmony export */   "Int32BufferAttribute": () => (/* binding */ Int32BufferAttribute),
/* harmony export */   "Int8Attribute": () => (/* binding */ Int8Attribute),
/* harmony export */   "Int8BufferAttribute": () => (/* binding */ Int8BufferAttribute),
/* harmony export */   "IntType": () => (/* binding */ IntType),
/* harmony export */   "InterleavedBuffer": () => (/* binding */ InterleavedBuffer),
/* harmony export */   "InterleavedBufferAttribute": () => (/* binding */ InterleavedBufferAttribute),
/* harmony export */   "Interpolant": () => (/* binding */ Interpolant),
/* harmony export */   "InterpolateDiscrete": () => (/* binding */ InterpolateDiscrete),
/* harmony export */   "InterpolateLinear": () => (/* binding */ InterpolateLinear),
/* harmony export */   "InterpolateSmooth": () => (/* binding */ InterpolateSmooth),
/* harmony export */   "InvertStencilOp": () => (/* binding */ InvertStencilOp),
/* harmony export */   "JSONLoader": () => (/* binding */ JSONLoader),
/* harmony export */   "KeepStencilOp": () => (/* binding */ KeepStencilOp),
/* harmony export */   "KeyframeTrack": () => (/* binding */ KeyframeTrack),
/* harmony export */   "LOD": () => (/* binding */ LOD),
/* harmony export */   "LatheBufferGeometry": () => (/* binding */ LatheGeometry),
/* harmony export */   "LatheGeometry": () => (/* binding */ LatheGeometry),
/* harmony export */   "Layers": () => (/* binding */ Layers),
/* harmony export */   "LensFlare": () => (/* binding */ LensFlare),
/* harmony export */   "LessDepth": () => (/* binding */ LessDepth),
/* harmony export */   "LessEqualDepth": () => (/* binding */ LessEqualDepth),
/* harmony export */   "LessEqualStencilFunc": () => (/* binding */ LessEqualStencilFunc),
/* harmony export */   "LessStencilFunc": () => (/* binding */ LessStencilFunc),
/* harmony export */   "Light": () => (/* binding */ Light),
/* harmony export */   "LightProbe": () => (/* binding */ LightProbe),
/* harmony export */   "Line": () => (/* binding */ Line),
/* harmony export */   "Line3": () => (/* binding */ Line3),
/* harmony export */   "LineBasicMaterial": () => (/* binding */ LineBasicMaterial),
/* harmony export */   "LineCurve": () => (/* binding */ LineCurve),
/* harmony export */   "LineCurve3": () => (/* binding */ LineCurve3),
/* harmony export */   "LineDashedMaterial": () => (/* binding */ LineDashedMaterial),
/* harmony export */   "LineLoop": () => (/* binding */ LineLoop),
/* harmony export */   "LinePieces": () => (/* binding */ LinePieces),
/* harmony export */   "LineSegments": () => (/* binding */ LineSegments),
/* harmony export */   "LineStrip": () => (/* binding */ LineStrip),
/* harmony export */   "LinearEncoding": () => (/* binding */ LinearEncoding),
/* harmony export */   "LinearFilter": () => (/* binding */ LinearFilter),
/* harmony export */   "LinearInterpolant": () => (/* binding */ LinearInterpolant),
/* harmony export */   "LinearMipMapLinearFilter": () => (/* binding */ LinearMipMapLinearFilter),
/* harmony export */   "LinearMipMapNearestFilter": () => (/* binding */ LinearMipMapNearestFilter),
/* harmony export */   "LinearMipmapLinearFilter": () => (/* binding */ LinearMipmapLinearFilter),
/* harmony export */   "LinearMipmapNearestFilter": () => (/* binding */ LinearMipmapNearestFilter),
/* harmony export */   "LinearToneMapping": () => (/* binding */ LinearToneMapping),
/* harmony export */   "Loader": () => (/* binding */ Loader),
/* harmony export */   "LoaderUtils": () => (/* binding */ LoaderUtils),
/* harmony export */   "LoadingManager": () => (/* binding */ LoadingManager),
/* harmony export */   "LoopOnce": () => (/* binding */ LoopOnce),
/* harmony export */   "LoopPingPong": () => (/* binding */ LoopPingPong),
/* harmony export */   "LoopRepeat": () => (/* binding */ LoopRepeat),
/* harmony export */   "LuminanceAlphaFormat": () => (/* binding */ LuminanceAlphaFormat),
/* harmony export */   "LuminanceFormat": () => (/* binding */ LuminanceFormat),
/* harmony export */   "MOUSE": () => (/* binding */ MOUSE),
/* harmony export */   "Material": () => (/* binding */ Material),
/* harmony export */   "MaterialLoader": () => (/* binding */ MaterialLoader),
/* harmony export */   "Math": () => (/* binding */ MathUtils),
/* harmony export */   "MathUtils": () => (/* binding */ MathUtils),
/* harmony export */   "Matrix3": () => (/* binding */ Matrix3),
/* harmony export */   "Matrix4": () => (/* binding */ Matrix4),
/* harmony export */   "MaxEquation": () => (/* binding */ MaxEquation),
/* harmony export */   "Mesh": () => (/* binding */ Mesh),
/* harmony export */   "MeshBasicMaterial": () => (/* binding */ MeshBasicMaterial),
/* harmony export */   "MeshDepthMaterial": () => (/* binding */ MeshDepthMaterial),
/* harmony export */   "MeshDistanceMaterial": () => (/* binding */ MeshDistanceMaterial),
/* harmony export */   "MeshFaceMaterial": () => (/* binding */ MeshFaceMaterial),
/* harmony export */   "MeshLambertMaterial": () => (/* binding */ MeshLambertMaterial),
/* harmony export */   "MeshMatcapMaterial": () => (/* binding */ MeshMatcapMaterial),
/* harmony export */   "MeshNormalMaterial": () => (/* binding */ MeshNormalMaterial),
/* harmony export */   "MeshPhongMaterial": () => (/* binding */ MeshPhongMaterial),
/* harmony export */   "MeshPhysicalMaterial": () => (/* binding */ MeshPhysicalMaterial),
/* harmony export */   "MeshStandardMaterial": () => (/* binding */ MeshStandardMaterial),
/* harmony export */   "MeshToonMaterial": () => (/* binding */ MeshToonMaterial),
/* harmony export */   "MinEquation": () => (/* binding */ MinEquation),
/* harmony export */   "MirroredRepeatWrapping": () => (/* binding */ MirroredRepeatWrapping),
/* harmony export */   "MixOperation": () => (/* binding */ MixOperation),
/* harmony export */   "MultiMaterial": () => (/* binding */ MultiMaterial),
/* harmony export */   "MultiplyBlending": () => (/* binding */ MultiplyBlending),
/* harmony export */   "MultiplyOperation": () => (/* binding */ MultiplyOperation),
/* harmony export */   "NearestFilter": () => (/* binding */ NearestFilter),
/* harmony export */   "NearestMipMapLinearFilter": () => (/* binding */ NearestMipMapLinearFilter),
/* harmony export */   "NearestMipMapNearestFilter": () => (/* binding */ NearestMipMapNearestFilter),
/* harmony export */   "NearestMipmapLinearFilter": () => (/* binding */ NearestMipmapLinearFilter),
/* harmony export */   "NearestMipmapNearestFilter": () => (/* binding */ NearestMipmapNearestFilter),
/* harmony export */   "NeverDepth": () => (/* binding */ NeverDepth),
/* harmony export */   "NeverStencilFunc": () => (/* binding */ NeverStencilFunc),
/* harmony export */   "NoBlending": () => (/* binding */ NoBlending),
/* harmony export */   "NoColors": () => (/* binding */ NoColors),
/* harmony export */   "NoToneMapping": () => (/* binding */ NoToneMapping),
/* harmony export */   "NormalAnimationBlendMode": () => (/* binding */ NormalAnimationBlendMode),
/* harmony export */   "NormalBlending": () => (/* binding */ NormalBlending),
/* harmony export */   "NotEqualDepth": () => (/* binding */ NotEqualDepth),
/* harmony export */   "NotEqualStencilFunc": () => (/* binding */ NotEqualStencilFunc),
/* harmony export */   "NumberKeyframeTrack": () => (/* binding */ NumberKeyframeTrack),
/* harmony export */   "Object3D": () => (/* binding */ Object3D),
/* harmony export */   "ObjectLoader": () => (/* binding */ ObjectLoader),
/* harmony export */   "ObjectSpaceNormalMap": () => (/* binding */ ObjectSpaceNormalMap),
/* harmony export */   "OctahedronBufferGeometry": () => (/* binding */ OctahedronGeometry),
/* harmony export */   "OctahedronGeometry": () => (/* binding */ OctahedronGeometry),
/* harmony export */   "OneFactor": () => (/* binding */ OneFactor),
/* harmony export */   "OneMinusDstAlphaFactor": () => (/* binding */ OneMinusDstAlphaFactor),
/* harmony export */   "OneMinusDstColorFactor": () => (/* binding */ OneMinusDstColorFactor),
/* harmony export */   "OneMinusSrcAlphaFactor": () => (/* binding */ OneMinusSrcAlphaFactor),
/* harmony export */   "OneMinusSrcColorFactor": () => (/* binding */ OneMinusSrcColorFactor),
/* harmony export */   "OrthographicCamera": () => (/* binding */ OrthographicCamera),
/* harmony export */   "PCFShadowMap": () => (/* binding */ PCFShadowMap),
/* harmony export */   "PCFSoftShadowMap": () => (/* binding */ PCFSoftShadowMap),
/* harmony export */   "PMREMGenerator": () => (/* binding */ PMREMGenerator),
/* harmony export */   "ParametricGeometry": () => (/* binding */ ParametricGeometry),
/* harmony export */   "Particle": () => (/* binding */ Particle),
/* harmony export */   "ParticleBasicMaterial": () => (/* binding */ ParticleBasicMaterial),
/* harmony export */   "ParticleSystem": () => (/* binding */ ParticleSystem),
/* harmony export */   "ParticleSystemMaterial": () => (/* binding */ ParticleSystemMaterial),
/* harmony export */   "Path": () => (/* binding */ Path),
/* harmony export */   "PerspectiveCamera": () => (/* binding */ PerspectiveCamera),
/* harmony export */   "Plane": () => (/* binding */ Plane),
/* harmony export */   "PlaneBufferGeometry": () => (/* binding */ PlaneGeometry),
/* harmony export */   "PlaneGeometry": () => (/* binding */ PlaneGeometry),
/* harmony export */   "PlaneHelper": () => (/* binding */ PlaneHelper),
/* harmony export */   "PointCloud": () => (/* binding */ PointCloud),
/* harmony export */   "PointCloudMaterial": () => (/* binding */ PointCloudMaterial),
/* harmony export */   "PointLight": () => (/* binding */ PointLight),
/* harmony export */   "PointLightHelper": () => (/* binding */ PointLightHelper),
/* harmony export */   "Points": () => (/* binding */ Points),
/* harmony export */   "PointsMaterial": () => (/* binding */ PointsMaterial),
/* harmony export */   "PolarGridHelper": () => (/* binding */ PolarGridHelper),
/* harmony export */   "PolyhedronBufferGeometry": () => (/* binding */ PolyhedronGeometry),
/* harmony export */   "PolyhedronGeometry": () => (/* binding */ PolyhedronGeometry),
/* harmony export */   "PositionalAudio": () => (/* binding */ PositionalAudio),
/* harmony export */   "PropertyBinding": () => (/* binding */ PropertyBinding),
/* harmony export */   "PropertyMixer": () => (/* binding */ PropertyMixer),
/* harmony export */   "QuadraticBezierCurve": () => (/* binding */ QuadraticBezierCurve),
/* harmony export */   "QuadraticBezierCurve3": () => (/* binding */ QuadraticBezierCurve3),
/* harmony export */   "Quaternion": () => (/* binding */ Quaternion),
/* harmony export */   "QuaternionKeyframeTrack": () => (/* binding */ QuaternionKeyframeTrack),
/* harmony export */   "QuaternionLinearInterpolant": () => (/* binding */ QuaternionLinearInterpolant),
/* harmony export */   "REVISION": () => (/* binding */ REVISION),
/* harmony export */   "RGBADepthPacking": () => (/* binding */ RGBADepthPacking),
/* harmony export */   "RGBAFormat": () => (/* binding */ RGBAFormat),
/* harmony export */   "RGBAIntegerFormat": () => (/* binding */ RGBAIntegerFormat),
/* harmony export */   "RGBA_ASTC_10x10_Format": () => (/* binding */ RGBA_ASTC_10x10_Format),
/* harmony export */   "RGBA_ASTC_10x5_Format": () => (/* binding */ RGBA_ASTC_10x5_Format),
/* harmony export */   "RGBA_ASTC_10x6_Format": () => (/* binding */ RGBA_ASTC_10x6_Format),
/* harmony export */   "RGBA_ASTC_10x8_Format": () => (/* binding */ RGBA_ASTC_10x8_Format),
/* harmony export */   "RGBA_ASTC_12x10_Format": () => (/* binding */ RGBA_ASTC_12x10_Format),
/* harmony export */   "RGBA_ASTC_12x12_Format": () => (/* binding */ RGBA_ASTC_12x12_Format),
/* harmony export */   "RGBA_ASTC_4x4_Format": () => (/* binding */ RGBA_ASTC_4x4_Format),
/* harmony export */   "RGBA_ASTC_5x4_Format": () => (/* binding */ RGBA_ASTC_5x4_Format),
/* harmony export */   "RGBA_ASTC_5x5_Format": () => (/* binding */ RGBA_ASTC_5x5_Format),
/* harmony export */   "RGBA_ASTC_6x5_Format": () => (/* binding */ RGBA_ASTC_6x5_Format),
/* harmony export */   "RGBA_ASTC_6x6_Format": () => (/* binding */ RGBA_ASTC_6x6_Format),
/* harmony export */   "RGBA_ASTC_8x5_Format": () => (/* binding */ RGBA_ASTC_8x5_Format),
/* harmony export */   "RGBA_ASTC_8x6_Format": () => (/* binding */ RGBA_ASTC_8x6_Format),
/* harmony export */   "RGBA_ASTC_8x8_Format": () => (/* binding */ RGBA_ASTC_8x8_Format),
/* harmony export */   "RGBA_BPTC_Format": () => (/* binding */ RGBA_BPTC_Format),
/* harmony export */   "RGBA_ETC2_EAC_Format": () => (/* binding */ RGBA_ETC2_EAC_Format),
/* harmony export */   "RGBA_PVRTC_2BPPV1_Format": () => (/* binding */ RGBA_PVRTC_2BPPV1_Format),
/* harmony export */   "RGBA_PVRTC_4BPPV1_Format": () => (/* binding */ RGBA_PVRTC_4BPPV1_Format),
/* harmony export */   "RGBA_S3TC_DXT1_Format": () => (/* binding */ RGBA_S3TC_DXT1_Format),
/* harmony export */   "RGBA_S3TC_DXT3_Format": () => (/* binding */ RGBA_S3TC_DXT3_Format),
/* harmony export */   "RGBA_S3TC_DXT5_Format": () => (/* binding */ RGBA_S3TC_DXT5_Format),
/* harmony export */   "RGBFormat": () => (/* binding */ RGBFormat),
/* harmony export */   "RGB_ETC1_Format": () => (/* binding */ RGB_ETC1_Format),
/* harmony export */   "RGB_ETC2_Format": () => (/* binding */ RGB_ETC2_Format),
/* harmony export */   "RGB_PVRTC_2BPPV1_Format": () => (/* binding */ RGB_PVRTC_2BPPV1_Format),
/* harmony export */   "RGB_PVRTC_4BPPV1_Format": () => (/* binding */ RGB_PVRTC_4BPPV1_Format),
/* harmony export */   "RGB_S3TC_DXT1_Format": () => (/* binding */ RGB_S3TC_DXT1_Format),
/* harmony export */   "RGFormat": () => (/* binding */ RGFormat),
/* harmony export */   "RGIntegerFormat": () => (/* binding */ RGIntegerFormat),
/* harmony export */   "RawShaderMaterial": () => (/* binding */ RawShaderMaterial),
/* harmony export */   "Ray": () => (/* binding */ Ray),
/* harmony export */   "Raycaster": () => (/* binding */ Raycaster),
/* harmony export */   "RectAreaLight": () => (/* binding */ RectAreaLight),
/* harmony export */   "RedFormat": () => (/* binding */ RedFormat),
/* harmony export */   "RedIntegerFormat": () => (/* binding */ RedIntegerFormat),
/* harmony export */   "ReinhardToneMapping": () => (/* binding */ ReinhardToneMapping),
/* harmony export */   "RepeatWrapping": () => (/* binding */ RepeatWrapping),
/* harmony export */   "ReplaceStencilOp": () => (/* binding */ ReplaceStencilOp),
/* harmony export */   "ReverseSubtractEquation": () => (/* binding */ ReverseSubtractEquation),
/* harmony export */   "RingBufferGeometry": () => (/* binding */ RingGeometry),
/* harmony export */   "RingGeometry": () => (/* binding */ RingGeometry),
/* harmony export */   "Scene": () => (/* binding */ Scene),
/* harmony export */   "SceneUtils": () => (/* binding */ SceneUtils),
/* harmony export */   "ShaderChunk": () => (/* binding */ ShaderChunk),
/* harmony export */   "ShaderLib": () => (/* binding */ ShaderLib),
/* harmony export */   "ShaderMaterial": () => (/* binding */ ShaderMaterial),
/* harmony export */   "ShadowMaterial": () => (/* binding */ ShadowMaterial),
/* harmony export */   "Shape": () => (/* binding */ Shape),
/* harmony export */   "ShapeBufferGeometry": () => (/* binding */ ShapeGeometry),
/* harmony export */   "ShapeGeometry": () => (/* binding */ ShapeGeometry),
/* harmony export */   "ShapePath": () => (/* binding */ ShapePath),
/* harmony export */   "ShapeUtils": () => (/* binding */ ShapeUtils),
/* harmony export */   "ShortType": () => (/* binding */ ShortType),
/* harmony export */   "Skeleton": () => (/* binding */ Skeleton),
/* harmony export */   "SkeletonHelper": () => (/* binding */ SkeletonHelper),
/* harmony export */   "SkinnedMesh": () => (/* binding */ SkinnedMesh),
/* harmony export */   "SmoothShading": () => (/* binding */ SmoothShading),
/* harmony export */   "Sphere": () => (/* binding */ Sphere),
/* harmony export */   "SphereBufferGeometry": () => (/* binding */ SphereGeometry),
/* harmony export */   "SphereGeometry": () => (/* binding */ SphereGeometry),
/* harmony export */   "Spherical": () => (/* binding */ Spherical),
/* harmony export */   "SphericalHarmonics3": () => (/* binding */ SphericalHarmonics3),
/* harmony export */   "SplineCurve": () => (/* binding */ SplineCurve),
/* harmony export */   "SpotLight": () => (/* binding */ SpotLight),
/* harmony export */   "SpotLightHelper": () => (/* binding */ SpotLightHelper),
/* harmony export */   "Sprite": () => (/* binding */ Sprite),
/* harmony export */   "SpriteMaterial": () => (/* binding */ SpriteMaterial),
/* harmony export */   "SrcAlphaFactor": () => (/* binding */ SrcAlphaFactor),
/* harmony export */   "SrcAlphaSaturateFactor": () => (/* binding */ SrcAlphaSaturateFactor),
/* harmony export */   "SrcColorFactor": () => (/* binding */ SrcColorFactor),
/* harmony export */   "StaticCopyUsage": () => (/* binding */ StaticCopyUsage),
/* harmony export */   "StaticDrawUsage": () => (/* binding */ StaticDrawUsage),
/* harmony export */   "StaticReadUsage": () => (/* binding */ StaticReadUsage),
/* harmony export */   "StereoCamera": () => (/* binding */ StereoCamera),
/* harmony export */   "StreamCopyUsage": () => (/* binding */ StreamCopyUsage),
/* harmony export */   "StreamDrawUsage": () => (/* binding */ StreamDrawUsage),
/* harmony export */   "StreamReadUsage": () => (/* binding */ StreamReadUsage),
/* harmony export */   "StringKeyframeTrack": () => (/* binding */ StringKeyframeTrack),
/* harmony export */   "SubtractEquation": () => (/* binding */ SubtractEquation),
/* harmony export */   "SubtractiveBlending": () => (/* binding */ SubtractiveBlending),
/* harmony export */   "TOUCH": () => (/* binding */ TOUCH),
/* harmony export */   "TangentSpaceNormalMap": () => (/* binding */ TangentSpaceNormalMap),
/* harmony export */   "TetrahedronBufferGeometry": () => (/* binding */ TetrahedronGeometry),
/* harmony export */   "TetrahedronGeometry": () => (/* binding */ TetrahedronGeometry),
/* harmony export */   "TextGeometry": () => (/* binding */ TextGeometry),
/* harmony export */   "Texture": () => (/* binding */ Texture),
/* harmony export */   "TextureLoader": () => (/* binding */ TextureLoader),
/* harmony export */   "TorusBufferGeometry": () => (/* binding */ TorusGeometry),
/* harmony export */   "TorusGeometry": () => (/* binding */ TorusGeometry),
/* harmony export */   "TorusKnotBufferGeometry": () => (/* binding */ TorusKnotGeometry),
/* harmony export */   "TorusKnotGeometry": () => (/* binding */ TorusKnotGeometry),
/* harmony export */   "Triangle": () => (/* binding */ Triangle),
/* harmony export */   "TriangleFanDrawMode": () => (/* binding */ TriangleFanDrawMode),
/* harmony export */   "TriangleStripDrawMode": () => (/* binding */ TriangleStripDrawMode),
/* harmony export */   "TrianglesDrawMode": () => (/* binding */ TrianglesDrawMode),
/* harmony export */   "TubeBufferGeometry": () => (/* binding */ TubeGeometry),
/* harmony export */   "TubeGeometry": () => (/* binding */ TubeGeometry),
/* harmony export */   "UVMapping": () => (/* binding */ UVMapping),
/* harmony export */   "Uint16Attribute": () => (/* binding */ Uint16Attribute),
/* harmony export */   "Uint16BufferAttribute": () => (/* binding */ Uint16BufferAttribute),
/* harmony export */   "Uint32Attribute": () => (/* binding */ Uint32Attribute),
/* harmony export */   "Uint32BufferAttribute": () => (/* binding */ Uint32BufferAttribute),
/* harmony export */   "Uint8Attribute": () => (/* binding */ Uint8Attribute),
/* harmony export */   "Uint8BufferAttribute": () => (/* binding */ Uint8BufferAttribute),
/* harmony export */   "Uint8ClampedAttribute": () => (/* binding */ Uint8ClampedAttribute),
/* harmony export */   "Uint8ClampedBufferAttribute": () => (/* binding */ Uint8ClampedBufferAttribute),
/* harmony export */   "Uniform": () => (/* binding */ Uniform),
/* harmony export */   "UniformsLib": () => (/* binding */ UniformsLib),
/* harmony export */   "UniformsUtils": () => (/* binding */ UniformsUtils),
/* harmony export */   "UnsignedByteType": () => (/* binding */ UnsignedByteType),
/* harmony export */   "UnsignedInt248Type": () => (/* binding */ UnsignedInt248Type),
/* harmony export */   "UnsignedIntType": () => (/* binding */ UnsignedIntType),
/* harmony export */   "UnsignedShort4444Type": () => (/* binding */ UnsignedShort4444Type),
/* harmony export */   "UnsignedShort5551Type": () => (/* binding */ UnsignedShort5551Type),
/* harmony export */   "UnsignedShortType": () => (/* binding */ UnsignedShortType),
/* harmony export */   "VSMShadowMap": () => (/* binding */ VSMShadowMap),
/* harmony export */   "Vector2": () => (/* binding */ Vector2),
/* harmony export */   "Vector3": () => (/* binding */ Vector3),
/* harmony export */   "Vector4": () => (/* binding */ Vector4),
/* harmony export */   "VectorKeyframeTrack": () => (/* binding */ VectorKeyframeTrack),
/* harmony export */   "Vertex": () => (/* binding */ Vertex),
/* harmony export */   "VertexColors": () => (/* binding */ VertexColors),
/* harmony export */   "VideoTexture": () => (/* binding */ VideoTexture),
/* harmony export */   "WebGL1Renderer": () => (/* binding */ WebGL1Renderer),
/* harmony export */   "WebGLCubeRenderTarget": () => (/* binding */ WebGLCubeRenderTarget),
/* harmony export */   "WebGLMultipleRenderTargets": () => (/* binding */ WebGLMultipleRenderTargets),
/* harmony export */   "WebGLMultisampleRenderTarget": () => (/* binding */ WebGLMultisampleRenderTarget),
/* harmony export */   "WebGLRenderTarget": () => (/* binding */ WebGLRenderTarget),
/* harmony export */   "WebGLRenderTargetCube": () => (/* binding */ WebGLRenderTargetCube),
/* harmony export */   "WebGLRenderer": () => (/* binding */ WebGLRenderer),
/* harmony export */   "WebGLUtils": () => (/* binding */ WebGLUtils),
/* harmony export */   "WireframeGeometry": () => (/* binding */ WireframeGeometry),
/* harmony export */   "WireframeHelper": () => (/* binding */ WireframeHelper),
/* harmony export */   "WrapAroundEnding": () => (/* binding */ WrapAroundEnding),
/* harmony export */   "XHRLoader": () => (/* binding */ XHRLoader),
/* harmony export */   "ZeroCurvatureEnding": () => (/* binding */ ZeroCurvatureEnding),
/* harmony export */   "ZeroFactor": () => (/* binding */ ZeroFactor),
/* harmony export */   "ZeroSlopeEnding": () => (/* binding */ ZeroSlopeEnding),
/* harmony export */   "ZeroStencilOp": () => (/* binding */ ZeroStencilOp),
/* harmony export */   "_SRGBAFormat": () => (/* binding */ _SRGBAFormat),
/* harmony export */   "sRGBEncoding": () => (/* binding */ sRGBEncoding)
/* harmony export */ });
/**
 * @license
 * Copyright 2010-2022 Three.js Authors
 * SPDX-License-Identifier: MIT
 */
const REVISION = '137';
const MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2, ROTATE: 0, DOLLY: 1, PAN: 2 };
const TOUCH = { ROTATE: 0, PAN: 1, DOLLY_PAN: 2, DOLLY_ROTATE: 3 };
const CullFaceNone = 0;
const CullFaceBack = 1;
const CullFaceFront = 2;
const CullFaceFrontBack = 3;
const BasicShadowMap = 0;
const PCFShadowMap = 1;
const PCFSoftShadowMap = 2;
const VSMShadowMap = 3;
const FrontSide = 0;
const BackSide = 1;
const DoubleSide = 2;
const FlatShading = 1;
const SmoothShading = 2;
const NoBlending = 0;
const NormalBlending = 1;
const AdditiveBlending = 2;
const SubtractiveBlending = 3;
const MultiplyBlending = 4;
const CustomBlending = 5;
const AddEquation = 100;
const SubtractEquation = 101;
const ReverseSubtractEquation = 102;
const MinEquation = 103;
const MaxEquation = 104;
const ZeroFactor = 200;
const OneFactor = 201;
const SrcColorFactor = 202;
const OneMinusSrcColorFactor = 203;
const SrcAlphaFactor = 204;
const OneMinusSrcAlphaFactor = 205;
const DstAlphaFactor = 206;
const OneMinusDstAlphaFactor = 207;
const DstColorFactor = 208;
const OneMinusDstColorFactor = 209;
const SrcAlphaSaturateFactor = 210;
const NeverDepth = 0;
const AlwaysDepth = 1;
const LessDepth = 2;
const LessEqualDepth = 3;
const EqualDepth = 4;
const GreaterEqualDepth = 5;
const GreaterDepth = 6;
const NotEqualDepth = 7;
const MultiplyOperation = 0;
const MixOperation = 1;
const AddOperation = 2;
const NoToneMapping = 0;
const LinearToneMapping = 1;
const ReinhardToneMapping = 2;
const CineonToneMapping = 3;
const ACESFilmicToneMapping = 4;
const CustomToneMapping = 5;

const UVMapping = 300;
const CubeReflectionMapping = 301;
const CubeRefractionMapping = 302;
const EquirectangularReflectionMapping = 303;
const EquirectangularRefractionMapping = 304;
const CubeUVReflectionMapping = 306;
const CubeUVRefractionMapping = 307;
const RepeatWrapping = 1000;
const ClampToEdgeWrapping = 1001;
const MirroredRepeatWrapping = 1002;
const NearestFilter = 1003;
const NearestMipmapNearestFilter = 1004;
const NearestMipMapNearestFilter = 1004;
const NearestMipmapLinearFilter = 1005;
const NearestMipMapLinearFilter = 1005;
const LinearFilter = 1006;
const LinearMipmapNearestFilter = 1007;
const LinearMipMapNearestFilter = 1007;
const LinearMipmapLinearFilter = 1008;
const LinearMipMapLinearFilter = 1008;
const UnsignedByteType = 1009;
const ByteType = 1010;
const ShortType = 1011;
const UnsignedShortType = 1012;
const IntType = 1013;
const UnsignedIntType = 1014;
const FloatType = 1015;
const HalfFloatType = 1016;
const UnsignedShort4444Type = 1017;
const UnsignedShort5551Type = 1018;
const UnsignedInt248Type = 1020;
const AlphaFormat = 1021;
const RGBFormat = 1022;
const RGBAFormat = 1023;
const LuminanceFormat = 1024;
const LuminanceAlphaFormat = 1025;
const DepthFormat = 1026;
const DepthStencilFormat = 1027;
const RedFormat = 1028;
const RedIntegerFormat = 1029;
const RGFormat = 1030;
const RGIntegerFormat = 1031;
const RGBAIntegerFormat = 1033;

const RGB_S3TC_DXT1_Format = 33776;
const RGBA_S3TC_DXT1_Format = 33777;
const RGBA_S3TC_DXT3_Format = 33778;
const RGBA_S3TC_DXT5_Format = 33779;
const RGB_PVRTC_4BPPV1_Format = 35840;
const RGB_PVRTC_2BPPV1_Format = 35841;
const RGBA_PVRTC_4BPPV1_Format = 35842;
const RGBA_PVRTC_2BPPV1_Format = 35843;
const RGB_ETC1_Format = 36196;
const RGB_ETC2_Format = 37492;
const RGBA_ETC2_EAC_Format = 37496;
const RGBA_ASTC_4x4_Format = 37808;
const RGBA_ASTC_5x4_Format = 37809;
const RGBA_ASTC_5x5_Format = 37810;
const RGBA_ASTC_6x5_Format = 37811;
const RGBA_ASTC_6x6_Format = 37812;
const RGBA_ASTC_8x5_Format = 37813;
const RGBA_ASTC_8x6_Format = 37814;
const RGBA_ASTC_8x8_Format = 37815;
const RGBA_ASTC_10x5_Format = 37816;
const RGBA_ASTC_10x6_Format = 37817;
const RGBA_ASTC_10x8_Format = 37818;
const RGBA_ASTC_10x10_Format = 37819;
const RGBA_ASTC_12x10_Format = 37820;
const RGBA_ASTC_12x12_Format = 37821;
const RGBA_BPTC_Format = 36492;
const LoopOnce = 2200;
const LoopRepeat = 2201;
const LoopPingPong = 2202;
const InterpolateDiscrete = 2300;
const InterpolateLinear = 2301;
const InterpolateSmooth = 2302;
const ZeroCurvatureEnding = 2400;
const ZeroSlopeEnding = 2401;
const WrapAroundEnding = 2402;
const NormalAnimationBlendMode = 2500;
const AdditiveAnimationBlendMode = 2501;
const TrianglesDrawMode = 0;
const TriangleStripDrawMode = 1;
const TriangleFanDrawMode = 2;
const LinearEncoding = 3000;
const sRGBEncoding = 3001;
const BasicDepthPacking = 3200;
const RGBADepthPacking = 3201;
const TangentSpaceNormalMap = 0;
const ObjectSpaceNormalMap = 1;

const ZeroStencilOp = 0;
const KeepStencilOp = 7680;
const ReplaceStencilOp = 7681;
const IncrementStencilOp = 7682;
const DecrementStencilOp = 7683;
const IncrementWrapStencilOp = 34055;
const DecrementWrapStencilOp = 34056;
const InvertStencilOp = 5386;

const NeverStencilFunc = 512;
const LessStencilFunc = 513;
const EqualStencilFunc = 514;
const LessEqualStencilFunc = 515;
const GreaterStencilFunc = 516;
const NotEqualStencilFunc = 517;
const GreaterEqualStencilFunc = 518;
const AlwaysStencilFunc = 519;

const StaticDrawUsage = 35044;
const DynamicDrawUsage = 35048;
const StreamDrawUsage = 35040;
const StaticReadUsage = 35045;
const DynamicReadUsage = 35049;
const StreamReadUsage = 35041;
const StaticCopyUsage = 35046;
const DynamicCopyUsage = 35050;
const StreamCopyUsage = 35042;

const GLSL1 = '100';
const GLSL3 = '300 es';

const _SRGBAFormat = 1035; // fallback for WebGL 1

/**
 * https://github.com/mrdoob/eventdispatcher.js/
 */

class EventDispatcher {

	addEventListener( type, listener ) {

		if ( this._listeners === undefined ) this._listeners = {};

		const listeners = this._listeners;

		if ( listeners[ type ] === undefined ) {

			listeners[ type ] = [];

		}

		if ( listeners[ type ].indexOf( listener ) === - 1 ) {

			listeners[ type ].push( listener );

		}

	}

	hasEventListener( type, listener ) {

		if ( this._listeners === undefined ) return false;

		const listeners = this._listeners;

		return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;

	}

	removeEventListener( type, listener ) {

		if ( this._listeners === undefined ) return;

		const listeners = this._listeners;
		const listenerArray = listeners[ type ];

		if ( listenerArray !== undefined ) {

			const index = listenerArray.indexOf( listener );

			if ( index !== - 1 ) {

				listenerArray.splice( index, 1 );

			}

		}

	}

	dispatchEvent( event ) {

		if ( this._listeners === undefined ) return;

		const listeners = this._listeners;
		const listenerArray = listeners[ event.type ];

		if ( listenerArray !== undefined ) {

			event.target = this;

			// Make a copy, in case listeners are removed while iterating.
			const array = listenerArray.slice( 0 );

			for ( let i = 0, l = array.length; i < l; i ++ ) {

				array[ i ].call( this, event );

			}

			event.target = null;

		}

	}

}

const _lut = [];

for ( let i = 0; i < 256; i ++ ) {

	_lut[ i ] = ( i < 16 ? '0' : '' ) + ( i ).toString( 16 );

}

let _seed = 1234567;


const DEG2RAD = Math.PI / 180;
const RAD2DEG = 180 / Math.PI;

// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
function generateUUID() {

	const d0 = Math.random() * 0xffffffff | 0;
	const d1 = Math.random() * 0xffffffff | 0;
	const d2 = Math.random() * 0xffffffff | 0;
	const d3 = Math.random() * 0xffffffff | 0;
	const uuid = _lut[ d0 & 0xff ] + _lut[ d0 >> 8 & 0xff ] + _lut[ d0 >> 16 & 0xff ] + _lut[ d0 >> 24 & 0xff ] + '-' +
			_lut[ d1 & 0xff ] + _lut[ d1 >> 8 & 0xff ] + '-' + _lut[ d1 >> 16 & 0x0f | 0x40 ] + _lut[ d1 >> 24 & 0xff ] + '-' +
			_lut[ d2 & 0x3f | 0x80 ] + _lut[ d2 >> 8 & 0xff ] + '-' + _lut[ d2 >> 16 & 0xff ] + _lut[ d2 >> 24 & 0xff ] +
			_lut[ d3 & 0xff ] + _lut[ d3 >> 8 & 0xff ] + _lut[ d3 >> 16 & 0xff ] + _lut[ d3 >> 24 & 0xff ];

	// .toUpperCase() here flattens concatenated strings to save heap memory space.
	return uuid.toUpperCase();

}

function clamp( value, min, max ) {

	return Math.max( min, Math.min( max, value ) );

}

// compute euclidian modulo of m % n
// https://en.wikipedia.org/wiki/Modulo_operation
function euclideanModulo( n, m ) {

	return ( ( n % m ) + m ) % m;

}

// Linear mapping from range <a1, a2> to range <b1, b2>
function mapLinear( x, a1, a2, b1, b2 ) {

	return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );

}

// https://www.gamedev.net/tutorials/programming/general-and-gameplay-programming/inverse-lerp-a-super-useful-yet-often-overlooked-function-r5230/
function inverseLerp( x, y, value ) {

	if ( x !== y ) {

		return ( value - x ) / ( y - x );

	} else {

		return 0;

	}

}

// https://en.wikipedia.org/wiki/Linear_interpolation
function lerp( x, y, t ) {

	return ( 1 - t ) * x + t * y;

}

// http://www.rorydriscoll.com/2016/03/07/frame-rate-independent-damping-using-lerp/
function damp( x, y, lambda, dt ) {

	return lerp( x, y, 1 - Math.exp( - lambda * dt ) );

}

// https://www.desmos.com/calculator/vcsjnyz7x4
function pingpong( x, length = 1 ) {

	return length - Math.abs( euclideanModulo( x, length * 2 ) - length );

}

// http://en.wikipedia.org/wiki/Smoothstep
function smoothstep( x, min, max ) {

	if ( x <= min ) return 0;
	if ( x >= max ) return 1;

	x = ( x - min ) / ( max - min );

	return x * x * ( 3 - 2 * x );

}

function smootherstep( x, min, max ) {

	if ( x <= min ) return 0;
	if ( x >= max ) return 1;

	x = ( x - min ) / ( max - min );

	return x * x * x * ( x * ( x * 6 - 15 ) + 10 );

}

// Random integer from <low, high> interval
function randInt( low, high ) {

	return low + Math.floor( Math.random() * ( high - low + 1 ) );

}

// Random float from <low, high> interval
function randFloat( low, high ) {

	return low + Math.random() * ( high - low );

}

// Random float from <-range/2, range/2> interval
function randFloatSpread( range ) {

	return range * ( 0.5 - Math.random() );

}

// Deterministic pseudo-random float in the interval [ 0, 1 ]
function seededRandom( s ) {

	if ( s !== undefined ) _seed = s % 2147483647;

	// Park-Miller algorithm

	_seed = _seed * 16807 % 2147483647;

	return ( _seed - 1 ) / 2147483646;

}

function degToRad( degrees ) {

	return degrees * DEG2RAD;

}

function radToDeg( radians ) {

	return radians * RAD2DEG;

}

function isPowerOfTwo( value ) {

	return ( value & ( value - 1 ) ) === 0 && value !== 0;

}

function ceilPowerOfTwo( value ) {

	return Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) );

}

function floorPowerOfTwo( value ) {

	return Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) );

}

function setQuaternionFromProperEuler( q, a, b, c, order ) {

	// Intrinsic Proper Euler Angles - see https://en.wikipedia.org/wiki/Euler_angles

	// rotations are applied to the axes in the order specified by 'order'
	// rotation by angle 'a' is applied first, then by angle 'b', then by angle 'c'
	// angles are in radians

	const cos = Math.cos;
	const sin = Math.sin;

	const c2 = cos( b / 2 );
	const s2 = sin( b / 2 );

	const c13 = cos( ( a + c ) / 2 );
	const s13 = sin( ( a + c ) / 2 );

	const c1_3 = cos( ( a - c ) / 2 );
	const s1_3 = sin( ( a - c ) / 2 );

	const c3_1 = cos( ( c - a ) / 2 );
	const s3_1 = sin( ( c - a ) / 2 );

	switch ( order ) {

		case 'XYX':
			q.set( c2 * s13, s2 * c1_3, s2 * s1_3, c2 * c13 );
			break;

		case 'YZY':
			q.set( s2 * s1_3, c2 * s13, s2 * c1_3, c2 * c13 );
			break;

		case 'ZXZ':
			q.set( s2 * c1_3, s2 * s1_3, c2 * s13, c2 * c13 );
			break;

		case 'XZX':
			q.set( c2 * s13, s2 * s3_1, s2 * c3_1, c2 * c13 );
			break;

		case 'YXY':
			q.set( s2 * c3_1, c2 * s13, s2 * s3_1, c2 * c13 );
			break;

		case 'ZYZ':
			q.set( s2 * s3_1, s2 * c3_1, c2 * s13, c2 * c13 );
			break;

		default:
			console.warn( 'THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: ' + order );

	}

}

var MathUtils = /*#__PURE__*/Object.freeze({
	__proto__: null,
	DEG2RAD: DEG2RAD,
	RAD2DEG: RAD2DEG,
	generateUUID: generateUUID,
	clamp: clamp,
	euclideanModulo: euclideanModulo,
	mapLinear: mapLinear,
	inverseLerp: inverseLerp,
	lerp: lerp,
	damp: damp,
	pingpong: pingpong,
	smoothstep: smoothstep,
	smootherstep: smootherstep,
	randInt: randInt,
	randFloat: randFloat,
	randFloatSpread: randFloatSpread,
	seededRandom: seededRandom,
	degToRad: degToRad,
	radToDeg: radToDeg,
	isPowerOfTwo: isPowerOfTwo,
	ceilPowerOfTwo: ceilPowerOfTwo,
	floorPowerOfTwo: floorPowerOfTwo,
	setQuaternionFromProperEuler: setQuaternionFromProperEuler
});

class Vector2 {

	constructor( x = 0, y = 0 ) {

		this.x = x;
		this.y = y;

	}

	get width() {

		return this.x;

	}

	set width( value ) {

		this.x = value;

	}

	get height() {

		return this.y;

	}

	set height( value ) {

		this.y = value;

	}

	set( x, y ) {

		this.x = x;
		this.y = y;

		return this;

	}

	setScalar( scalar ) {

		this.x = scalar;
		this.y = scalar;

		return this;

	}

	setX( x ) {

		this.x = x;

		return this;

	}

	setY( y ) {

		this.y = y;

		return this;

	}

	setComponent( index, value ) {

		switch ( index ) {

			case 0: this.x = value; break;
			case 1: this.y = value; break;
			default: throw new Error( 'index is out of range: ' + index );

		}

		return this;

	}

	getComponent( index ) {

		switch ( index ) {

			case 0: return this.x;
			case 1: return this.y;
			default: throw new Error( 'index is out of range: ' + index );

		}

	}

	clone() {

		return new this.constructor( this.x, this.y );

	}

	copy( v ) {

		this.x = v.x;
		this.y = v.y;

		return this;

	}

	add( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
			return this.addVectors( v, w );

		}

		this.x += v.x;
		this.y += v.y;

		return this;

	}

	addScalar( s ) {

		this.x += s;
		this.y += s;

		return this;

	}

	addVectors( a, b ) {

		this.x = a.x + b.x;
		this.y = a.y + b.y;

		return this;

	}

	addScaledVector( v, s ) {

		this.x += v.x * s;
		this.y += v.y * s;

		return this;

	}

	sub( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
			return this.subVectors( v, w );

		}

		this.x -= v.x;
		this.y -= v.y;

		return this;

	}

	subScalar( s ) {

		this.x -= s;
		this.y -= s;

		return this;

	}

	subVectors( a, b ) {

		this.x = a.x - b.x;
		this.y = a.y - b.y;

		return this;

	}

	multiply( v ) {

		this.x *= v.x;
		this.y *= v.y;

		return this;

	}

	multiplyScalar( scalar ) {

		this.x *= scalar;
		this.y *= scalar;

		return this;

	}

	divide( v ) {

		this.x /= v.x;
		this.y /= v.y;

		return this;

	}

	divideScalar( scalar ) {

		return this.multiplyScalar( 1 / scalar );

	}

	applyMatrix3( m ) {

		const x = this.x, y = this.y;
		const e = m.elements;

		this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ];
		this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ];

		return this;

	}

	min( v ) {

		this.x = Math.min( this.x, v.x );
		this.y = Math.min( this.y, v.y );

		return this;

	}

	max( v ) {

		this.x = Math.max( this.x, v.x );
		this.y = Math.max( this.y, v.y );

		return this;

	}

	clamp( min, max ) {

		// assumes min < max, componentwise

		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
		this.y = Math.max( min.y, Math.min( max.y, this.y ) );

		return this;

	}

	clampScalar( minVal, maxVal ) {

		this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
		this.y = Math.max( minVal, Math.min( maxVal, this.y ) );

		return this;

	}

	clampLength( min, max ) {

		const length = this.length();

		return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

	}

	floor() {

		this.x = Math.floor( this.x );
		this.y = Math.floor( this.y );

		return this;

	}

	ceil() {

		this.x = Math.ceil( this.x );
		this.y = Math.ceil( this.y );

		return this;

	}

	round() {

		this.x = Math.round( this.x );
		this.y = Math.round( this.y );

		return this;

	}

	roundToZero() {

		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );

		return this;

	}

	negate() {

		this.x = - this.x;
		this.y = - this.y;

		return this;

	}

	dot( v ) {

		return this.x * v.x + this.y * v.y;

	}

	cross( v ) {

		return this.x * v.y - this.y * v.x;

	}

	lengthSq() {

		return this.x * this.x + this.y * this.y;

	}

	length() {

		return Math.sqrt( this.x * this.x + this.y * this.y );

	}

	manhattanLength() {

		return Math.abs( this.x ) + Math.abs( this.y );

	}

	normalize() {

		return this.divideScalar( this.length() || 1 );

	}

	angle() {

		// computes the angle in radians with respect to the positive x-axis

		const angle = Math.atan2( - this.y, - this.x ) + Math.PI;

		return angle;

	}

	distanceTo( v ) {

		return Math.sqrt( this.distanceToSquared( v ) );

	}

	distanceToSquared( v ) {

		const dx = this.x - v.x, dy = this.y - v.y;
		return dx * dx + dy * dy;

	}

	manhattanDistanceTo( v ) {

		return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );

	}

	setLength( length ) {

		return this.normalize().multiplyScalar( length );

	}

	lerp( v, alpha ) {

		this.x += ( v.x - this.x ) * alpha;
		this.y += ( v.y - this.y ) * alpha;

		return this;

	}

	lerpVectors( v1, v2, alpha ) {

		this.x = v1.x + ( v2.x - v1.x ) * alpha;
		this.y = v1.y + ( v2.y - v1.y ) * alpha;

		return this;

	}

	equals( v ) {

		return ( ( v.x === this.x ) && ( v.y === this.y ) );

	}

	fromArray( array, offset = 0 ) {

		this.x = array[ offset ];
		this.y = array[ offset + 1 ];

		return this;

	}

	toArray( array = [], offset = 0 ) {

		array[ offset ] = this.x;
		array[ offset + 1 ] = this.y;

		return array;

	}

	fromBufferAttribute( attribute, index, offset ) {

		if ( offset !== undefined ) {

			console.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' );

		}

		this.x = attribute.getX( index );
		this.y = attribute.getY( index );

		return this;

	}

	rotateAround( center, angle ) {

		const c = Math.cos( angle ), s = Math.sin( angle );

		const x = this.x - center.x;
		const y = this.y - center.y;

		this.x = x * c - y * s + center.x;
		this.y = x * s + y * c + center.y;

		return this;

	}

	random() {

		this.x = Math.random();
		this.y = Math.random();

		return this;

	}

	*[ Symbol.iterator ]() {

		yield this.x;
		yield this.y;

	}

}

Vector2.prototype.isVector2 = true;

class Matrix3 {

	constructor() {

		this.elements = [

			1, 0, 0,
			0, 1, 0,
			0, 0, 1

		];

		if ( arguments.length > 0 ) {

			console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );

		}

	}

	set( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {

		const te = this.elements;

		te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;
		te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;
		te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;

		return this;

	}

	identity() {

		this.set(

			1, 0, 0,
			0, 1, 0,
			0, 0, 1

		);

		return this;

	}

	copy( m ) {

		const te = this.elements;
		const me = m.elements;

		te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];
		te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];
		te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];

		return this;

	}

	extractBasis( xAxis, yAxis, zAxis ) {

		xAxis.setFromMatrix3Column( this, 0 );
		yAxis.setFromMatrix3Column( this, 1 );
		zAxis.setFromMatrix3Column( this, 2 );

		return this;

	}

	setFromMatrix4( m ) {

		const me = m.elements;

		this.set(

			me[ 0 ], me[ 4 ], me[ 8 ],
			me[ 1 ], me[ 5 ], me[ 9 ],
			me[ 2 ], me[ 6 ], me[ 10 ]

		);

		return this;

	}

	multiply( m ) {

		return this.multiplyMatrices( this, m );

	}

	premultiply( m ) {

		return this.multiplyMatrices( m, this );

	}

	multiplyMatrices( a, b ) {

		const ae = a.elements;
		const be = b.elements;
		const te = this.elements;

		const a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];
		const a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];
		const a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];

		const b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];
		const b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];
		const b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];

		te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;
		te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;
		te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;

		te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;
		te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;
		te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;

		te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;
		te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;
		te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;

		return this;

	}

	multiplyScalar( s ) {

		const te = this.elements;

		te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;
		te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;
		te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;

		return this;

	}

	determinant() {

		const te = this.elements;

		const a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],
			d = te[ 3 ], e = te[ 4 ], f = te[ 5 ],
			g = te[ 6 ], h = te[ 7 ], i = te[ 8 ];

		return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;

	}

	invert() {

		const te = this.elements,

			n11 = te[ 0 ], n21 = te[ 1 ], n31 = te[ 2 ],
			n12 = te[ 3 ], n22 = te[ 4 ], n32 = te[ 5 ],
			n13 = te[ 6 ], n23 = te[ 7 ], n33 = te[ 8 ],

			t11 = n33 * n22 - n32 * n23,
			t12 = n32 * n13 - n33 * n12,
			t13 = n23 * n12 - n22 * n13,

			det = n11 * t11 + n21 * t12 + n31 * t13;

		if ( det === 0 ) return this.set( 0, 0, 0, 0, 0, 0, 0, 0, 0 );

		const detInv = 1 / det;

		te[ 0 ] = t11 * detInv;
		te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;
		te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;

		te[ 3 ] = t12 * detInv;
		te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;
		te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;

		te[ 6 ] = t13 * detInv;
		te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;
		te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;

		return this;

	}

	transpose() {

		let tmp;
		const m = this.elements;

		tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;
		tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;
		tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;

		return this;

	}

	getNormalMatrix( matrix4 ) {

		return this.setFromMatrix4( matrix4 ).invert().transpose();

	}

	transposeIntoArray( r ) {

		const m = this.elements;

		r[ 0 ] = m[ 0 ];
		r[ 1 ] = m[ 3 ];
		r[ 2 ] = m[ 6 ];
		r[ 3 ] = m[ 1 ];
		r[ 4 ] = m[ 4 ];
		r[ 5 ] = m[ 7 ];
		r[ 6 ] = m[ 2 ];
		r[ 7 ] = m[ 5 ];
		r[ 8 ] = m[ 8 ];

		return this;

	}

	setUvTransform( tx, ty, sx, sy, rotation, cx, cy ) {

		const c = Math.cos( rotation );
		const s = Math.sin( rotation );

		this.set(
			sx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx,
			- sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty,
			0, 0, 1
		);

		return this;

	}

	scale( sx, sy ) {

		const te = this.elements;

		te[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx;
		te[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy;

		return this;

	}

	rotate( theta ) {

		const c = Math.cos( theta );
		const s = Math.sin( theta );

		const te = this.elements;

		const a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ];
		const a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ];

		te[ 0 ] = c * a11 + s * a21;
		te[ 3 ] = c * a12 + s * a22;
		te[ 6 ] = c * a13 + s * a23;

		te[ 1 ] = - s * a11 + c * a21;
		te[ 4 ] = - s * a12 + c * a22;
		te[ 7 ] = - s * a13 + c * a23;

		return this;

	}

	translate( tx, ty ) {

		const te = this.elements;

		te[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ];
		te[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ];

		return this;

	}

	equals( matrix ) {

		const te = this.elements;
		const me = matrix.elements;

		for ( let i = 0; i < 9; i ++ ) {

			if ( te[ i ] !== me[ i ] ) return false;

		}

		return true;

	}

	fromArray( array, offset = 0 ) {

		for ( let i = 0; i < 9; i ++ ) {

			this.elements[ i ] = array[ i + offset ];

		}

		return this;

	}

	toArray( array = [], offset = 0 ) {

		const te = this.elements;

		array[ offset ] = te[ 0 ];
		array[ offset + 1 ] = te[ 1 ];
		array[ offset + 2 ] = te[ 2 ];

		array[ offset + 3 ] = te[ 3 ];
		array[ offset + 4 ] = te[ 4 ];
		array[ offset + 5 ] = te[ 5 ];

		array[ offset + 6 ] = te[ 6 ];
		array[ offset + 7 ] = te[ 7 ];
		array[ offset + 8 ] = te[ 8 ];

		return array;

	}

	clone() {

		return new this.constructor().fromArray( this.elements );

	}

}

Matrix3.prototype.isMatrix3 = true;

function arrayNeedsUint32( array ) {

	// assumes larger values usually on last

	for ( let i = array.length - 1; i >= 0; -- i ) {

		if ( array[ i ] > 65535 ) return true;

	}

	return false;

}

const TYPED_ARRAYS = {
	Int8Array: Int8Array,
	Uint8Array: Uint8Array,
	Uint8ClampedArray: Uint8ClampedArray,
	Int16Array: Int16Array,
	Uint16Array: Uint16Array,
	Int32Array: Int32Array,
	Uint32Array: Uint32Array,
	Float32Array: Float32Array,
	Float64Array: Float64Array
};

function getTypedArray( type, buffer ) {

	return new TYPED_ARRAYS[ type ]( buffer );

}

function createElementNS( name ) {

	return document.createElementNS( 'http://www.w3.org/1999/xhtml', name );

}

const _colorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,
	'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,
	'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,
	'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,
	'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,
	'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,
	'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,
	'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,
	'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,
	'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,
	'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,
	'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,
	'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,
	'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,
	'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,
	'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,
	'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,
	'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,
	'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,
	'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,
	'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,
	'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,
	'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,
	'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };

const _hslA = { h: 0, s: 0, l: 0 };
const _hslB = { h: 0, s: 0, l: 0 };

function hue2rgb( p, q, t ) {

	if ( t < 0 ) t += 1;
	if ( t > 1 ) t -= 1;
	if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;
	if ( t < 1 / 2 ) return q;
	if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );
	return p;

}

function SRGBToLinear( c ) {

	return ( c < 0.04045 ) ? c * 0.0773993808 : Math.pow( c * 0.9478672986 + 0.0521327014, 2.4 );

}

function LinearToSRGB( c ) {

	return ( c < 0.0031308 ) ? c * 12.92 : 1.055 * ( Math.pow( c, 0.41666 ) ) - 0.055;

}

class Color {

	constructor( r, g, b ) {

		if ( g === undefined && b === undefined ) {

			// r is THREE.Color, hex or string
			return this.set( r );

		}

		return this.setRGB( r, g, b );

	}

	set( value ) {

		if ( value && value.isColor ) {

			this.copy( value );

		} else if ( typeof value === 'number' ) {

			this.setHex( value );

		} else if ( typeof value === 'string' ) {

			this.setStyle( value );

		}

		return this;

	}

	setScalar( scalar ) {

		this.r = scalar;
		this.g = scalar;
		this.b = scalar;

		return this;

	}

	setHex( hex ) {

		hex = Math.floor( hex );

		this.r = ( hex >> 16 & 255 ) / 255;
		this.g = ( hex >> 8 & 255 ) / 255;
		this.b = ( hex & 255 ) / 255;

		return this;

	}

	setRGB( r, g, b ) {

		this.r = r;
		this.g = g;
		this.b = b;

		return this;

	}

	setHSL( h, s, l ) {

		// h,s,l ranges are in 0.0 - 1.0
		h = euclideanModulo( h, 1 );
		s = clamp( s, 0, 1 );
		l = clamp( l, 0, 1 );

		if ( s === 0 ) {

			this.r = this.g = this.b = l;

		} else {

			const p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );
			const q = ( 2 * l ) - p;

			this.r = hue2rgb( q, p, h + 1 / 3 );
			this.g = hue2rgb( q, p, h );
			this.b = hue2rgb( q, p, h - 1 / 3 );

		}

		return this;

	}

	setStyle( style ) {

		function handleAlpha( string ) {

			if ( string === undefined ) return;

			if ( parseFloat( string ) < 1 ) {

				console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );

			}

		}


		let m;

		if ( m = /^((?:rgb|hsl)a?)\(([^\)]*)\)/.exec( style ) ) {

			// rgb / hsl

			let color;
			const name = m[ 1 ];
			const components = m[ 2 ];

			switch ( name ) {

				case 'rgb':
				case 'rgba':

					if ( color = /^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) {

						// rgb(255,0,0) rgba(255,0,0,0.5)
						this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;
						this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;
						this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;

						handleAlpha( color[ 4 ] );

						return this;

					}

					if ( color = /^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) {

						// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
						this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;
						this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;
						this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;

						handleAlpha( color[ 4 ] );

						return this;

					}

					break;

				case 'hsl':
				case 'hsla':

					if ( color = /^\s*(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) {

						// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
						const h = parseFloat( color[ 1 ] ) / 360;
						const s = parseInt( color[ 2 ], 10 ) / 100;
						const l = parseInt( color[ 3 ], 10 ) / 100;

						handleAlpha( color[ 4 ] );

						return this.setHSL( h, s, l );

					}

					break;

			}

		} else if ( m = /^\#([A-Fa-f\d]+)$/.exec( style ) ) {

			// hex color

			const hex = m[ 1 ];
			const size = hex.length;

			if ( size === 3 ) {

				// #ff0
				this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;
				this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;
				this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;

				return this;

			} else if ( size === 6 ) {

				// #ff0000
				this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;
				this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;
				this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;

				return this;

			}

		}

		if ( style && style.length > 0 ) {

			return this.setColorName( style );

		}

		return this;

	}

	setColorName( style ) {

		// color keywords
		const hex = _colorKeywords[ style.toLowerCase() ];

		if ( hex !== undefined ) {

			// red
			this.setHex( hex );

		} else {

			// unknown color
			console.warn( 'THREE.Color: Unknown color ' + style );

		}

		return this;

	}

	clone() {

		return new this.constructor( this.r, this.g, this.b );

	}

	copy( color ) {

		this.r = color.r;
		this.g = color.g;
		this.b = color.b;

		return this;

	}

	copySRGBToLinear( color ) {

		this.r = SRGBToLinear( color.r );
		this.g = SRGBToLinear( color.g );
		this.b = SRGBToLinear( color.b );

		return this;

	}

	copyLinearToSRGB( color ) {

		this.r = LinearToSRGB( color.r );
		this.g = LinearToSRGB( color.g );
		this.b = LinearToSRGB( color.b );

		return this;

	}

	convertSRGBToLinear() {

		this.copySRGBToLinear( this );

		return this;

	}

	convertLinearToSRGB() {

		this.copyLinearToSRGB( this );

		return this;

	}

	getHex() {

		return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;

	}

	getHexString() {

		return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );

	}

	getHSL( target ) {

		// h,s,l ranges are in 0.0 - 1.0

		const r = this.r, g = this.g, b = this.b;

		const max = Math.max( r, g, b );
		const min = Math.min( r, g, b );

		let hue, saturation;
		const lightness = ( min + max ) / 2.0;

		if ( min === max ) {

			hue = 0;
			saturation = 0;

		} else {

			const delta = max - min;

			saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );

			switch ( max ) {

				case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;
				case g: hue = ( b - r ) / delta + 2; break;
				case b: hue = ( r - g ) / delta + 4; break;

			}

			hue /= 6;

		}

		target.h = hue;
		target.s = saturation;
		target.l = lightness;

		return target;

	}

	getStyle() {

		return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';

	}

	offsetHSL( h, s, l ) {

		this.getHSL( _hslA );

		_hslA.h += h; _hslA.s += s; _hslA.l += l;

		this.setHSL( _hslA.h, _hslA.s, _hslA.l );

		return this;

	}

	add( color ) {

		this.r += color.r;
		this.g += color.g;
		this.b += color.b;

		return this;

	}

	addColors( color1, color2 ) {

		this.r = color1.r + color2.r;
		this.g = color1.g + color2.g;
		this.b = color1.b + color2.b;

		return this;

	}

	addScalar( s ) {

		this.r += s;
		this.g += s;
		this.b += s;

		return this;

	}

	sub( color ) {

		this.r = Math.max( 0, this.r - color.r );
		this.g = Math.max( 0, this.g - color.g );
		this.b = Math.max( 0, this.b - color.b );

		return this;

	}

	multiply( color ) {

		this.r *= color.r;
		this.g *= color.g;
		this.b *= color.b;

		return this;

	}

	multiplyScalar( s ) {

		this.r *= s;
		this.g *= s;
		this.b *= s;

		return this;

	}

	lerp( color, alpha ) {

		this.r += ( color.r - this.r ) * alpha;
		this.g += ( color.g - this.g ) * alpha;
		this.b += ( color.b - this.b ) * alpha;

		return this;

	}

	lerpColors( color1, color2, alpha ) {

		this.r = color1.r + ( color2.r - color1.r ) * alpha;
		this.g = color1.g + ( color2.g - color1.g ) * alpha;
		this.b = color1.b + ( color2.b - color1.b ) * alpha;

		return this;

	}

	lerpHSL( color, alpha ) {

		this.getHSL( _hslA );
		color.getHSL( _hslB );

		const h = lerp( _hslA.h, _hslB.h, alpha );
		const s = lerp( _hslA.s, _hslB.s, alpha );
		const l = lerp( _hslA.l, _hslB.l, alpha );

		this.setHSL( h, s, l );

		return this;

	}

	equals( c ) {

		return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );

	}

	fromArray( array, offset = 0 ) {

		this.r = array[ offset ];
		this.g = array[ offset + 1 ];
		this.b = array[ offset + 2 ];

		return this;

	}

	toArray( array = [], offset = 0 ) {

		array[ offset ] = this.r;
		array[ offset + 1 ] = this.g;
		array[ offset + 2 ] = this.b;

		return array;

	}

	fromBufferAttribute( attribute, index ) {

		this.r = attribute.getX( index );
		this.g = attribute.getY( index );
		this.b = attribute.getZ( index );

		if ( attribute.normalized === true ) {

			// assuming Uint8Array

			this.r /= 255;
			this.g /= 255;
			this.b /= 255;

		}

		return this;

	}

	toJSON() {

		return this.getHex();

	}

}

Color.NAMES = _colorKeywords;

Color.prototype.isColor = true;
Color.prototype.r = 1;
Color.prototype.g = 1;
Color.prototype.b = 1;

let _canvas;

class ImageUtils {

	static getDataURL( image ) {

		if ( /^data:/i.test( image.src ) ) {

			return image.src;

		}

		if ( typeof HTMLCanvasElement == 'undefined' ) {

			return image.src;

		}

		let canvas;

		if ( image instanceof HTMLCanvasElement ) {

			canvas = image;

		} else {

			if ( _canvas === undefined ) _canvas = createElementNS( 'canvas' );

			_canvas.width = image.width;
			_canvas.height = image.height;

			const context = _canvas.getContext( '2d' );

			if ( image instanceof ImageData ) {

				context.putImageData( image, 0, 0 );

			} else {

				context.drawImage( image, 0, 0, image.width, image.height );

			}

			canvas = _canvas;

		}

		if ( canvas.width > 2048 || canvas.height > 2048 ) {

			console.warn( 'THREE.ImageUtils.getDataURL: Image converted to jpg for performance reasons', image );

			return canvas.toDataURL( 'image/jpeg', 0.6 );

		} else {

			return canvas.toDataURL( 'image/png' );

		}

	}

	static sRGBToLinear( image ) {

		if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) ||
			( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) ||
			( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) {

			const canvas = createElementNS( 'canvas' );

			canvas.width = image.width;
			canvas.height = image.height;

			const context = canvas.getContext( '2d' );
			context.drawImage( image, 0, 0, image.width, image.height );

			const imageData = context.getImageData( 0, 0, image.width, image.height );
			const data = imageData.data;

			for ( let i = 0; i < data.length; i ++ ) {

				data[ i ] = SRGBToLinear( data[ i ] / 255 ) * 255;

			}

			context.putImageData( imageData, 0, 0 );

			return canvas;

		} else if ( image.data ) {

			const data = image.data.slice( 0 );

			for ( let i = 0; i < data.length; i ++ ) {

				if ( data instanceof Uint8Array || data instanceof Uint8ClampedArray ) {

					data[ i ] = Math.floor( SRGBToLinear( data[ i ] / 255 ) * 255 );

				} else {

					// assuming float

					data[ i ] = SRGBToLinear( data[ i ] );

				}

			}

			return {
				data: data,
				width: image.width,
				height: image.height
			};

		} else {

			console.warn( 'THREE.ImageUtils.sRGBToLinear(): Unsupported image type. No color space conversion applied.' );
			return image;

		}

	}

}

let textureId = 0;

class Texture extends EventDispatcher {

	constructor( image = Texture.DEFAULT_IMAGE, mapping = Texture.DEFAULT_MAPPING, wrapS = ClampToEdgeWrapping, wrapT = ClampToEdgeWrapping, magFilter = LinearFilter, minFilter = LinearMipmapLinearFilter, format = RGBAFormat, type = UnsignedByteType, anisotropy = 1, encoding = LinearEncoding ) {

		super();

		Object.defineProperty( this, 'id', { value: textureId ++ } );

		this.uuid = generateUUID();

		this.name = '';

		this.image = image;
		this.mipmaps = [];

		this.mapping = mapping;

		this.wrapS = wrapS;
		this.wrapT = wrapT;

		this.magFilter = magFilter;
		this.minFilter = minFilter;

		this.anisotropy = anisotropy;

		this.format = format;
		this.internalFormat = null;
		this.type = type;

		this.offset = new Vector2( 0, 0 );
		this.repeat = new Vector2( 1, 1 );
		this.center = new Vector2( 0, 0 );
		this.rotation = 0;

		this.matrixAutoUpdate = true;
		this.matrix = new Matrix3();

		this.generateMipmaps = true;
		this.premultiplyAlpha = false;
		this.flipY = true;
		this.unpackAlignment = 4;	// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)

		// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
		//
		// Also changing the encoding after already used by a Material will not automatically make the Material
		// update. You need to explicitly call Material.needsUpdate to trigger it to recompile.
		this.encoding = encoding;

		this.userData = {};

		this.version = 0;
		this.onUpdate = null;

		this.isRenderTargetTexture = false; // indicates whether a texture belongs to a render target or not
		this.needsPMREMUpdate = false; // indicates whether this texture should be processed by PMREMGenerator or not (only relevant for render target textures)

	}

	updateMatrix() {

		this.matrix.setUvTransform( this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y );

	}

	clone() {

		return new this.constructor().copy( this );

	}

	copy( source ) {

		this.name = source.name;

		this.image = source.image;
		this.mipmaps = source.mipmaps.slice( 0 );

		this.mapping = source.mapping;

		this.wrapS = source.wrapS;
		this.wrapT = source.wrapT;

		this.magFilter = source.magFilter;
		this.minFilter = source.minFilter;

		this.anisotropy = source.anisotropy;

		this.format = source.format;
		this.internalFormat = source.internalFormat;
		this.type = source.type;

		this.offset.copy( source.offset );
		this.repeat.copy( source.repeat );
		this.center.copy( source.center );
		this.rotation = source.rotation;

		this.matrixAutoUpdate = source.matrixAutoUpdate;
		this.matrix.copy( source.matrix );

		this.generateMipmaps = source.generateMipmaps;
		this.premultiplyAlpha = source.premultiplyAlpha;
		this.flipY = source.flipY;
		this.unpackAlignment = source.unpackAlignment;
		this.encoding = source.encoding;

		this.userData = JSON.parse( JSON.stringify( source.userData ) );

		return this;

	}

	toJSON( meta ) {

		const isRootObject = ( meta === undefined || typeof meta === 'string' );

		if ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) {

			return meta.textures[ this.uuid ];

		}

		const output = {

			metadata: {
				version: 4.5,
				type: 'Texture',
				generator: 'Texture.toJSON'
			},

			uuid: this.uuid,
			name: this.name,

			mapping: this.mapping,

			repeat: [ this.repeat.x, this.repeat.y ],
			offset: [ this.offset.x, this.offset.y ],
			center: [ this.center.x, this.center.y ],
			rotation: this.rotation,

			wrap: [ this.wrapS, this.wrapT ],

			format: this.format,
			type: this.type,
			encoding: this.encoding,

			minFilter: this.minFilter,
			magFilter: this.magFilter,
			anisotropy: this.anisotropy,

			flipY: this.flipY,

			premultiplyAlpha: this.premultiplyAlpha,
			unpackAlignment: this.unpackAlignment

		};

		if ( this.image !== undefined ) {

			// TODO: Move to THREE.Image

			const image = this.image;

			if ( image.uuid === undefined ) {

				image.uuid = generateUUID(); // UGH

			}

			if ( ! isRootObject && meta.images[ image.uuid ] === undefined ) {

				let url;

				if ( Array.isArray( image ) ) {

					// process array of images e.g. CubeTexture

					url = [];

					for ( let i = 0, l = image.length; i < l; i ++ ) {

						// check cube texture with data textures

						if ( image[ i ].isDataTexture ) {

							url.push( serializeImage( image[ i ].image ) );

						} else {

							url.push( serializeImage( image[ i ] ) );

						}

					}

				} else {

					// process single image

					url = serializeImage( image );

				}

				meta.images[ image.uuid ] = {
					uuid: image.uuid,
					url: url
				};

			}

			output.image = image.uuid;

		}

		if ( JSON.stringify( this.userData ) !== '{}' ) output.userData = this.userData;

		if ( ! isRootObject ) {

			meta.textures[ this.uuid ] = output;

		}

		return output;

	}

	dispose() {

		this.dispatchEvent( { type: 'dispose' } );

	}

	transformUv( uv ) {

		if ( this.mapping !== UVMapping ) return uv;

		uv.applyMatrix3( this.matrix );

		if ( uv.x < 0 || uv.x > 1 ) {

			switch ( this.wrapS ) {

				case RepeatWrapping:

					uv.x = uv.x - Math.floor( uv.x );
					break;

				case ClampToEdgeWrapping:

					uv.x = uv.x < 0 ? 0 : 1;
					break;

				case MirroredRepeatWrapping:

					if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {

						uv.x = Math.ceil( uv.x ) - uv.x;

					} else {

						uv.x = uv.x - Math.floor( uv.x );

					}

					break;

			}

		}

		if ( uv.y < 0 || uv.y > 1 ) {

			switch ( this.wrapT ) {

				case RepeatWrapping:

					uv.y = uv.y - Math.floor( uv.y );
					break;

				case ClampToEdgeWrapping:

					uv.y = uv.y < 0 ? 0 : 1;
					break;

				case MirroredRepeatWrapping:

					if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {

						uv.y = Math.ceil( uv.y ) - uv.y;

					} else {

						uv.y = uv.y - Math.floor( uv.y );

					}

					break;

			}

		}

		if ( this.flipY ) {

			uv.y = 1 - uv.y;

		}

		return uv;

	}

	set needsUpdate( value ) {

		if ( value === true ) this.version ++;

	}

}

Texture.DEFAULT_IMAGE = undefined;
Texture.DEFAULT_MAPPING = UVMapping;

Texture.prototype.isTexture = true;

function serializeImage( image ) {

	if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) ||
		( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) ||
		( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) {

		// default images

		return ImageUtils.getDataURL( image );

	} else {

		if ( image.data ) {

			// images of DataTexture

			return {
				data: Array.prototype.slice.call( image.data ),
				width: image.width,
				height: image.height,
				type: image.data.constructor.name
			};

		} else {

			console.warn( 'THREE.Texture: Unable to serialize Texture.' );
			return {};

		}

	}

}

class Vector4 {

	constructor( x = 0, y = 0, z = 0, w = 1 ) {

		this.x = x;
		this.y = y;
		this.z = z;
		this.w = w;

	}

	get width() {

		return this.z;

	}

	set width( value ) {

		this.z = value;

	}

	get height() {

		return this.w;

	}

	set height( value ) {

		this.w = value;

	}

	set( x, y, z, w ) {

		this.x = x;
		this.y = y;
		this.z = z;
		this.w = w;

		return this;

	}

	setScalar( scalar ) {

		this.x = scalar;
		this.y = scalar;
		this.z = scalar;
		this.w = scalar;

		return this;

	}

	setX( x ) {

		this.x = x;

		return this;

	}

	setY( y ) {

		this.y = y;

		return this;

	}

	setZ( z ) {

		this.z = z;

		return this;

	}

	setW( w ) {

		this.w = w;

		return this;

	}

	setComponent( index, value ) {

		switch ( index ) {

			case 0: this.x = value; break;
			case 1: this.y = value; break;
			case 2: this.z = value; break;
			case 3: this.w = value; break;
			default: throw new Error( 'index is out of range: ' + index );

		}

		return this;

	}

	getComponent( index ) {

		switch ( index ) {

			case 0: return this.x;
			case 1: return this.y;
			case 2: return this.z;
			case 3: return this.w;
			default: throw new Error( 'index is out of range: ' + index );

		}

	}

	clone() {

		return new this.constructor( this.x, this.y, this.z, this.w );

	}

	copy( v ) {

		this.x = v.x;
		this.y = v.y;
		this.z = v.z;
		this.w = ( v.w !== undefined ) ? v.w : 1;

		return this;

	}

	add( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
			return this.addVectors( v, w );

		}

		this.x += v.x;
		this.y += v.y;
		this.z += v.z;
		this.w += v.w;

		return this;

	}

	addScalar( s ) {

		this.x += s;
		this.y += s;
		this.z += s;
		this.w += s;

		return this;

	}

	addVectors( a, b ) {

		this.x = a.x + b.x;
		this.y = a.y + b.y;
		this.z = a.z + b.z;
		this.w = a.w + b.w;

		return this;

	}

	addScaledVector( v, s ) {

		this.x += v.x * s;
		this.y += v.y * s;
		this.z += v.z * s;
		this.w += v.w * s;

		return this;

	}

	sub( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
			return this.subVectors( v, w );

		}

		this.x -= v.x;
		this.y -= v.y;
		this.z -= v.z;
		this.w -= v.w;

		return this;

	}

	subScalar( s ) {

		this.x -= s;
		this.y -= s;
		this.z -= s;
		this.w -= s;

		return this;

	}

	subVectors( a, b ) {

		this.x = a.x - b.x;
		this.y = a.y - b.y;
		this.z = a.z - b.z;
		this.w = a.w - b.w;

		return this;

	}

	multiply( v ) {

		this.x *= v.x;
		this.y *= v.y;
		this.z *= v.z;
		this.w *= v.w;

		return this;

	}

	multiplyScalar( scalar ) {

		this.x *= scalar;
		this.y *= scalar;
		this.z *= scalar;
		this.w *= scalar;

		return this;

	}

	applyMatrix4( m ) {

		const x = this.x, y = this.y, z = this.z, w = this.w;
		const e = m.elements;

		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;
		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;
		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;
		this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;

		return this;

	}

	divideScalar( scalar ) {

		return this.multiplyScalar( 1 / scalar );

	}

	setAxisAngleFromQuaternion( q ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm

		// q is assumed to be normalized

		this.w = 2 * Math.acos( q.w );

		const s = Math.sqrt( 1 - q.w * q.w );

		if ( s < 0.0001 ) {

			this.x = 1;
			this.y = 0;
			this.z = 0;

		} else {

			this.x = q.x / s;
			this.y = q.y / s;
			this.z = q.z / s;

		}

		return this;

	}

	setAxisAngleFromRotationMatrix( m ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		let angle, x, y, z; // variables for result
		const epsilon = 0.01,		// margin to allow for rounding errors
			epsilon2 = 0.1,		// margin to distinguish between 0 and 180 degrees

			te = m.elements,

			m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
			m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
			m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

		if ( ( Math.abs( m12 - m21 ) < epsilon ) &&
		     ( Math.abs( m13 - m31 ) < epsilon ) &&
		     ( Math.abs( m23 - m32 ) < epsilon ) ) {

			// singularity found
			// first check for identity matrix which must have +1 for all terms
			// in leading diagonal and zero in other terms

			if ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&
			     ( Math.abs( m13 + m31 ) < epsilon2 ) &&
			     ( Math.abs( m23 + m32 ) < epsilon2 ) &&
			     ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {

				// this singularity is identity matrix so angle = 0

				this.set( 1, 0, 0, 0 );

				return this; // zero angle, arbitrary axis

			}

			// otherwise this singularity is angle = 180

			angle = Math.PI;

			const xx = ( m11 + 1 ) / 2;
			const yy = ( m22 + 1 ) / 2;
			const zz = ( m33 + 1 ) / 2;
			const xy = ( m12 + m21 ) / 4;
			const xz = ( m13 + m31 ) / 4;
			const yz = ( m23 + m32 ) / 4;

			if ( ( xx > yy ) && ( xx > zz ) ) {

				// m11 is the largest diagonal term

				if ( xx < epsilon ) {

					x = 0;
					y = 0.707106781;
					z = 0.707106781;

				} else {

					x = Math.sqrt( xx );
					y = xy / x;
					z = xz / x;

				}

			} else if ( yy > zz ) {

				// m22 is the largest diagonal term

				if ( yy < epsilon ) {

					x = 0.707106781;
					y = 0;
					z = 0.707106781;

				} else {

					y = Math.sqrt( yy );
					x = xy / y;
					z = yz / y;

				}

			} else {

				// m33 is the largest diagonal term so base result on this

				if ( zz < epsilon ) {

					x = 0.707106781;
					y = 0.707106781;
					z = 0;

				} else {

					z = Math.sqrt( zz );
					x = xz / z;
					y = yz / z;

				}

			}

			this.set( x, y, z, angle );

			return this; // return 180 deg rotation

		}

		// as we have reached here there are no singularities so we can handle normally

		let s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +
			( m13 - m31 ) * ( m13 - m31 ) +
			( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize

		if ( Math.abs( s ) < 0.001 ) s = 1;

		// prevent divide by zero, should not happen if matrix is orthogonal and should be
		// caught by singularity test above, but I've left it in just in case

		this.x = ( m32 - m23 ) / s;
		this.y = ( m13 - m31 ) / s;
		this.z = ( m21 - m12 ) / s;
		this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );

		return this;

	}

	min( v ) {

		this.x = Math.min( this.x, v.x );
		this.y = Math.min( this.y, v.y );
		this.z = Math.min( this.z, v.z );
		this.w = Math.min( this.w, v.w );

		return this;

	}

	max( v ) {

		this.x = Math.max( this.x, v.x );
		this.y = Math.max( this.y, v.y );
		this.z = Math.max( this.z, v.z );
		this.w = Math.max( this.w, v.w );

		return this;

	}

	clamp( min, max ) {

		// assumes min < max, componentwise

		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
		this.y = Math.max( min.y, Math.min( max.y, this.y ) );
		this.z = Math.max( min.z, Math.min( max.z, this.z ) );
		this.w = Math.max( min.w, Math.min( max.w, this.w ) );

		return this;

	}

	clampScalar( minVal, maxVal ) {

		this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
		this.y = Math.max( minVal, Math.min( maxVal, this.y ) );
		this.z = Math.max( minVal, Math.min( maxVal, this.z ) );
		this.w = Math.max( minVal, Math.min( maxVal, this.w ) );

		return this;

	}

	clampLength( min, max ) {

		const length = this.length();

		return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

	}

	floor() {

		this.x = Math.floor( this.x );
		this.y = Math.floor( this.y );
		this.z = Math.floor( this.z );
		this.w = Math.floor( this.w );

		return this;

	}

	ceil() {

		this.x = Math.ceil( this.x );
		this.y = Math.ceil( this.y );
		this.z = Math.ceil( this.z );
		this.w = Math.ceil( this.w );

		return this;

	}

	round() {

		this.x = Math.round( this.x );
		this.y = Math.round( this.y );
		this.z = Math.round( this.z );
		this.w = Math.round( this.w );

		return this;

	}

	roundToZero() {

		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
		this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
		this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );

		return this;

	}

	negate() {

		this.x = - this.x;
		this.y = - this.y;
		this.z = - this.z;
		this.w = - this.w;

		return this;

	}

	dot( v ) {

		return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;

	}

	lengthSq() {

		return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;

	}

	length() {

		return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );

	}

	manhattanLength() {

		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );

	}

	normalize() {

		return this.divideScalar( this.length() || 1 );

	}

	setLength( length ) {

		return this.normalize().multiplyScalar( length );

	}

	lerp( v, alpha ) {

		this.x += ( v.x - this.x ) * alpha;
		this.y += ( v.y - this.y ) * alpha;
		this.z += ( v.z - this.z ) * alpha;
		this.w += ( v.w - this.w ) * alpha;

		return this;

	}

	lerpVectors( v1, v2, alpha ) {

		this.x = v1.x + ( v2.x - v1.x ) * alpha;
		this.y = v1.y + ( v2.y - v1.y ) * alpha;
		this.z = v1.z + ( v2.z - v1.z ) * alpha;
		this.w = v1.w + ( v2.w - v1.w ) * alpha;

		return this;

	}

	equals( v ) {

		return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );

	}

	fromArray( array, offset = 0 ) {

		this.x = array[ offset ];
		this.y = array[ offset + 1 ];
		this.z = array[ offset + 2 ];
		this.w = array[ offset + 3 ];

		return this;

	}

	toArray( array = [], offset = 0 ) {

		array[ offset ] = this.x;
		array[ offset + 1 ] = this.y;
		array[ offset + 2 ] = this.z;
		array[ offset + 3 ] = this.w;

		return array;

	}

	fromBufferAttribute( attribute, index, offset ) {

		if ( offset !== undefined ) {

			console.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' );

		}

		this.x = attribute.getX( index );
		this.y = attribute.getY( index );
		this.z = attribute.getZ( index );
		this.w = attribute.getW( index );

		return this;

	}

	random() {

		this.x = Math.random();
		this.y = Math.random();
		this.z = Math.random();
		this.w = Math.random();

		return this;

	}

	*[ Symbol.iterator ]() {

		yield this.x;
		yield this.y;
		yield this.z;
		yield this.w;

	}

}

Vector4.prototype.isVector4 = true;

/*
 In options, we can specify:
 * Texture parameters for an auto-generated target texture
 * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
*/
class WebGLRenderTarget extends EventDispatcher {

	constructor( width, height, options = {} ) {

		super();

		this.width = width;
		this.height = height;
		this.depth = 1;

		this.scissor = new Vector4( 0, 0, width, height );
		this.scissorTest = false;

		this.viewport = new Vector4( 0, 0, width, height );

		this.texture = new Texture( undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );
		this.texture.isRenderTargetTexture = true;

		this.texture.image = { width: width, height: height, depth: 1 };

		this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
		this.texture.internalFormat = options.internalFormat !== undefined ? options.internalFormat : null;
		this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;

		this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
		this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : false;
		this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;

	}

	setTexture( texture ) {

		texture.image = {
			width: this.width,
			height: this.height,
			depth: this.depth
		};

		this.texture = texture;

	}

	setSize( width, height, depth = 1 ) {

		if ( this.width !== width || this.height !== height || this.depth !== depth ) {

			this.width = width;
			this.height = height;
			this.depth = depth;

			this.texture.image.width = width;
			this.texture.image.height = height;
			this.texture.image.depth = depth;

			this.dispose();

		}

		this.viewport.set( 0, 0, width, height );
		this.scissor.set( 0, 0, width, height );

	}

	clone() {

		return new this.constructor().copy( this );

	}

	copy( source ) {

		this.width = source.width;
		this.height = source.height;
		this.depth = source.depth;

		this.viewport.copy( source.viewport );

		this.texture = source.texture.clone();

		// ensure image object is not shared, see #20328

		this.texture.image = Object.assign( {}, source.texture.image );

		this.depthBuffer = source.depthBuffer;
		this.stencilBuffer = source.stencilBuffer;
		this.depthTexture = source.depthTexture;

		return this;

	}

	dispose() {

		this.dispatchEvent( { type: 'dispose' } );

	}

}

WebGLRenderTarget.prototype.isWebGLRenderTarget = true;

class WebGLMultipleRenderTargets extends WebGLRenderTarget {

	constructor( width, height, count ) {

		super( width, height );

		const texture = this.texture;

		this.texture = [];

		for ( let i = 0; i < count; i ++ ) {

			this.texture[ i ] = texture.clone();

		}

	}

	setSize( width, height, depth = 1 ) {

		if ( this.width !== width || this.height !== height || this.depth !== depth ) {

			this.width = width;
			this.height = height;
			this.depth = depth;

			for ( let i = 0, il = this.texture.length; i < il; i ++ ) {

				this.texture[ i ].image.width = width;
				this.texture[ i ].image.height = height;
				this.texture[ i ].image.depth = depth;

			}

			this.dispose();

		}

		this.viewport.set( 0, 0, width, height );
		this.scissor.set( 0, 0, width, height );

		return this;

	}

	copy( source ) {

		this.dispose();

		this.width = source.width;
		this.height = source.height;
		this.depth = source.depth;

		this.viewport.set( 0, 0, this.width, this.height );
		this.scissor.set( 0, 0, this.width, this.height );

		this.depthBuffer = source.depthBuffer;
		this.stencilBuffer = source.stencilBuffer;
		this.depthTexture = source.depthTexture;

		this.texture.length = 0;

		for ( let i = 0, il = source.texture.length; i < il; i ++ ) {

			this.texture[ i ] = source.texture[ i ].clone();

		}

		return this;

	}

}

WebGLMultipleRenderTargets.prototype.isWebGLMultipleRenderTargets = true;

class WebGLMultisampleRenderTarget extends WebGLRenderTarget {

	constructor( width, height, options = {} ) {

		super( width, height, options );

		this.samples = 4;

		this.ignoreDepthForMultisampleCopy = options.ignoreDepth !== undefined ? options.ignoreDepth : true;
		this.useRenderToTexture = ( options.useRenderToTexture !== undefined ) ? options.useRenderToTexture : false;
		this.useRenderbuffer = this.useRenderToTexture === false;

	}

	copy( source ) {

		super.copy.call( this, source );

		this.samples = source.samples;
		this.useRenderToTexture = source.useRenderToTexture;
		this.useRenderbuffer = source.useRenderbuffer;

		return this;

	}

}

WebGLMultisampleRenderTarget.prototype.isWebGLMultisampleRenderTarget = true;

class Quaternion {

	constructor( x = 0, y = 0, z = 0, w = 1 ) {

		this._x = x;
		this._y = y;
		this._z = z;
		this._w = w;

	}

	static slerp( qa, qb, qm, t ) {

		console.warn( 'THREE.Quaternion: Static .slerp() has been deprecated. Use qm.slerpQuaternions( qa, qb, t ) instead.' );
		return qm.slerpQuaternions( qa, qb, t );

	}

	static slerpFlat( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {

		// fuzz-free, array-based Quaternion SLERP operation

		let x0 = src0[ srcOffset0 + 0 ],
			y0 = src0[ srcOffset0 + 1 ],
			z0 = src0[ srcOffset0 + 2 ],
			w0 = src0[ srcOffset0 + 3 ];

		const x1 = src1[ srcOffset1 + 0 ],
			y1 = src1[ srcOffset1 + 1 ],
			z1 = src1[ srcOffset1 + 2 ],
			w1 = src1[ srcOffset1 + 3 ];

		if ( t === 0 ) {

			dst[ dstOffset + 0 ] = x0;
			dst[ dstOffset + 1 ] = y0;
			dst[ dstOffset + 2 ] = z0;
			dst[ dstOffset + 3 ] = w0;
			return;

		}

		if ( t === 1 ) {

			dst[ dstOffset + 0 ] = x1;
			dst[ dstOffset + 1 ] = y1;
			dst[ dstOffset + 2 ] = z1;
			dst[ dstOffset + 3 ] = w1;
			return;

		}

		if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {

			let s = 1 - t;
			const cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,
				dir = ( cos >= 0 ? 1 : - 1 ),
				sqrSin = 1 - cos * cos;

			// Skip the Slerp for tiny steps to avoid numeric problems:
			if ( sqrSin > Number.EPSILON ) {

				const sin = Math.sqrt( sqrSin ),
					len = Math.atan2( sin, cos * dir );

				s = Math.sin( s * len ) / sin;
				t = Math.sin( t * len ) / sin;

			}

			const tDir = t * dir;

			x0 = x0 * s + x1 * tDir;
			y0 = y0 * s + y1 * tDir;
			z0 = z0 * s + z1 * tDir;
			w0 = w0 * s + w1 * tDir;

			// Normalize in case we just did a lerp:
			if ( s === 1 - t ) {

				const f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );

				x0 *= f;
				y0 *= f;
				z0 *= f;
				w0 *= f;

			}

		}

		dst[ dstOffset ] = x0;
		dst[ dstOffset + 1 ] = y0;
		dst[ dstOffset + 2 ] = z0;
		dst[ dstOffset + 3 ] = w0;

	}

	static multiplyQuaternionsFlat( dst, dstOffset, src0, srcOffset0, src1, srcOffset1 ) {

		const x0 = src0[ srcOffset0 ];
		const y0 = src0[ srcOffset0 + 1 ];
		const z0 = src0[ srcOffset0 + 2 ];
		const w0 = src0[ srcOffset0 + 3 ];

		const x1 = src1[ srcOffset1 ];
		const y1 = src1[ srcOffset1 + 1 ];
		const z1 = src1[ srcOffset1 + 2 ];
		const w1 = src1[ srcOffset1 + 3 ];

		dst[ dstOffset ] = x0 * w1 + w0 * x1 + y0 * z1 - z0 * y1;
		dst[ dstOffset + 1 ] = y0 * w1 + w0 * y1 + z0 * x1 - x0 * z1;
		dst[ dstOffset + 2 ] = z0 * w1 + w0 * z1 + x0 * y1 - y0 * x1;
		dst[ dstOffset + 3 ] = w0 * w1 - x0 * x1 - y0 * y1 - z0 * z1;

		return dst;

	}

	get x() {

		return this._x;

	}

	set x( value ) {

		this._x = value;
		this._onChangeCallback();

	}

	get y() {

		return this._y;

	}

	set y( value ) {

		this._y = value;
		this._onChangeCallback();

	}

	get z() {

		return this._z;

	}

	set z( value ) {

		this._z = value;
		this._onChangeCallback();

	}

	get w() {

		return this._w;

	}

	set w( value ) {

		this._w = value;
		this._onChangeCallback();

	}

	set( x, y, z, w ) {

		this._x = x;
		this._y = y;
		this._z = z;
		this._w = w;

		this._onChangeCallback();

		return this;

	}

	clone() {

		return new this.constructor( this._x, this._y, this._z, this._w );

	}

	copy( quaternion ) {

		this._x = quaternion.x;
		this._y = quaternion.y;
		this._z = quaternion.z;
		this._w = quaternion.w;

		this._onChangeCallback();

		return this;

	}

	setFromEuler( euler, update ) {

		if ( ! ( euler && euler.isEuler ) ) {

			throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );

		}

		const x = euler._x, y = euler._y, z = euler._z, order = euler._order;

		// http://www.mathworks.com/matlabcentral/fileexchange/
		// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
		//	content/SpinCalc.m

		const cos = Math.cos;
		const sin = Math.sin;

		const c1 = cos( x / 2 );
		const c2 = cos( y / 2 );
		const c3 = cos( z / 2 );

		const s1 = sin( x / 2 );
		const s2 = sin( y / 2 );
		const s3 = sin( z / 2 );

		switch ( order ) {

			case 'XYZ':
				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;
				break;

			case 'YXZ':
				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;
				break;

			case 'ZXY':
				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;
				break;

			case 'ZYX':
				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;
				break;

			case 'YZX':
				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;
				break;

			case 'XZY':
				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;
				break;

			default:
				console.warn( 'THREE.Quaternion: .setFromEuler() encountered an unknown order: ' + order );

		}

		if ( update !== false ) this._onChangeCallback();

		return this;

	}

	setFromAxisAngle( axis, angle ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm

		// assumes axis is normalized

		const halfAngle = angle / 2, s = Math.sin( halfAngle );

		this._x = axis.x * s;
		this._y = axis.y * s;
		this._z = axis.z * s;
		this._w = Math.cos( halfAngle );

		this._onChangeCallback();

		return this;

	}

	setFromRotationMatrix( m ) {

		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		const te = m.elements,

			m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
			m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
			m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],

			trace = m11 + m22 + m33;

		if ( trace > 0 ) {

			const s = 0.5 / Math.sqrt( trace + 1.0 );

			this._w = 0.25 / s;
			this._x = ( m32 - m23 ) * s;
			this._y = ( m13 - m31 ) * s;
			this._z = ( m21 - m12 ) * s;

		} else if ( m11 > m22 && m11 > m33 ) {

			const s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );

			this._w = ( m32 - m23 ) / s;
			this._x = 0.25 * s;
			this._y = ( m12 + m21 ) / s;
			this._z = ( m13 + m31 ) / s;

		} else if ( m22 > m33 ) {

			const s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );

			this._w = ( m13 - m31 ) / s;
			this._x = ( m12 + m21 ) / s;
			this._y = 0.25 * s;
			this._z = ( m23 + m32 ) / s;

		} else {

			const s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );

			this._w = ( m21 - m12 ) / s;
			this._x = ( m13 + m31 ) / s;
			this._y = ( m23 + m32 ) / s;
			this._z = 0.25 * s;

		}

		this._onChangeCallback();

		return this;

	}

	setFromUnitVectors( vFrom, vTo ) {

		// assumes direction vectors vFrom and vTo are normalized

		let r = vFrom.dot( vTo ) + 1;

		if ( r < Number.EPSILON ) {

			// vFrom and vTo point in opposite directions

			r = 0;

			if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {

				this._x = - vFrom.y;
				this._y = vFrom.x;
				this._z = 0;
				this._w = r;

			} else {

				this._x = 0;
				this._y = - vFrom.z;
				this._z = vFrom.y;
				this._w = r;

			}

		} else {

			// crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3

			this._x = vFrom.y * vTo.z - vFrom.z * vTo.y;
			this._y = vFrom.z * vTo.x - vFrom.x * vTo.z;
			this._z = vFrom.x * vTo.y - vFrom.y * vTo.x;
			this._w = r;

		}

		return this.normalize();

	}

	angleTo( q ) {

		return 2 * Math.acos( Math.abs( clamp( this.dot( q ), - 1, 1 ) ) );

	}

	rotateTowards( q, step ) {

		const angle = this.angleTo( q );

		if ( angle === 0 ) return this;

		const t = Math.min( 1, step / angle );

		this.slerp( q, t );

		return this;

	}

	identity() {

		return this.set( 0, 0, 0, 1 );

	}

	invert() {

		// quaternion is assumed to have unit length

		return this.conjugate();

	}

	conjugate() {

		this._x *= - 1;
		this._y *= - 1;
		this._z *= - 1;

		this._onChangeCallback();

		return this;

	}

	dot( v ) {

		return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;

	}

	lengthSq() {

		return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;

	}

	length() {

		return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );

	}

	normalize() {

		let l = this.length();

		if ( l === 0 ) {

			this._x = 0;
			this._y = 0;
			this._z = 0;
			this._w = 1;

		} else {

			l = 1 / l;

			this._x = this._x * l;
			this._y = this._y * l;
			this._z = this._z * l;
			this._w = this._w * l;

		}

		this._onChangeCallback();

		return this;

	}

	multiply( q, p ) {

		if ( p !== undefined ) {

			console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
			return this.multiplyQuaternions( q, p );

		}

		return this.multiplyQuaternions( this, q );

	}

	premultiply( q ) {

		return this.multiplyQuaternions( q, this );

	}

	multiplyQuaternions( a, b ) {

		// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm

		const qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
		const qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;

		this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
		this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
		this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
		this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;

		this._onChangeCallback();

		return this;

	}

	slerp( qb, t ) {

		if ( t === 0 ) return this;
		if ( t === 1 ) return this.copy( qb );

		const x = this._x, y = this._y, z = this._z, w = this._w;

		// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/

		let cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;

		if ( cosHalfTheta < 0 ) {

			this._w = - qb._w;
			this._x = - qb._x;
			this._y = - qb._y;
			this._z = - qb._z;

			cosHalfTheta = - cosHalfTheta;

		} else {

			this.copy( qb );

		}

		if ( cosHalfTheta >= 1.0 ) {

			this._w = w;
			this._x = x;
			this._y = y;
			this._z = z;

			return this;

		}

		const sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;

		if ( sqrSinHalfTheta <= Number.EPSILON ) {

			const s = 1 - t;
			this._w = s * w + t * this._w;
			this._x = s * x + t * this._x;
			this._y = s * y + t * this._y;
			this._z = s * z + t * this._z;

			this.normalize();
			this._onChangeCallback();

			return this;

		}

		const sinHalfTheta = Math.sqrt( sqrSinHalfTheta );
		const halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );
		const ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
			ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;

		this._w = ( w * ratioA + this._w * ratioB );
		this._x = ( x * ratioA + this._x * ratioB );
		this._y = ( y * ratioA + this._y * ratioB );
		this._z = ( z * ratioA + this._z * ratioB );

		this._onChangeCallback();

		return this;

	}

	slerpQuaternions( qa, qb, t ) {

		return this.copy( qa ).slerp( qb, t );

	}

	random() {

		// Derived from http://planning.cs.uiuc.edu/node198.html
		// Note, this source uses w, x, y, z ordering,
		// so we swap the order below.

		const u1 = Math.random();
		const sqrt1u1 = Math.sqrt( 1 - u1 );
		const sqrtu1 = Math.sqrt( u1 );

		const u2 = 2 * Math.PI * Math.random();

		const u3 = 2 * Math.PI * Math.random();

		return this.set(
			sqrt1u1 * Math.cos( u2 ),
			sqrtu1 * Math.sin( u3 ),
			sqrtu1 * Math.cos( u3 ),
			sqrt1u1 * Math.sin( u2 ),
		);

	}

	equals( quaternion ) {

		return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );

	}

	fromArray( array, offset = 0 ) {

		this._x = array[ offset ];
		this._y = array[ offset + 1 ];
		this._z = array[ offset + 2 ];
		this._w = array[ offset + 3 ];

		this._onChangeCallback();

		return this;

	}

	toArray( array = [], offset = 0 ) {

		array[ offset ] = this._x;
		array[ offset + 1 ] = this._y;
		array[ offset + 2 ] = this._z;
		array[ offset + 3 ] = this._w;

		return array;

	}

	fromBufferAttribute( attribute, index ) {

		this._x = attribute.getX( index );
		this._y = attribute.getY( index );
		this._z = attribute.getZ( index );
		this._w = attribute.getW( index );

		return this;

	}

	_onChange( callback ) {

		this._onChangeCallback = callback;

		return this;

	}

	_onChangeCallback() {}

}

Quaternion.prototype.isQuaternion = true;

class Vector3 {

	constructor( x = 0, y = 0, z = 0 ) {

		this.x = x;
		this.y = y;
		this.z = z;

	}

	set( x, y, z ) {

		if ( z === undefined ) z = this.z; // sprite.scale.set(x,y)

		this.x = x;
		this.y = y;
		this.z = z;

		return this;

	}

	setScalar( scalar ) {

		this.x = scalar;
		this.y = scalar;
		this.z = scalar;

		return this;

	}

	setX( x ) {

		this.x = x;

		return this;

	}

	setY( y ) {

		this.y = y;

		return this;

	}

	setZ( z ) {

		this.z = z;

		return this;

	}

	setComponent( index, value ) {

		switch ( index ) {

			case 0: this.x = value; break;
			case 1: this.y = value; break;
			case 2: this.z = value; break;
			default: throw new Error( 'index is out of range: ' + index );

		}

		return this;

	}

	getComponent( index ) {

		switch ( index ) {

			case 0: return this.x;
			case 1: return this.y;
			case 2: return this.z;
			default: throw new Error( 'index is out of range: ' + index );

		}

	}

	clone() {

		return new this.constructor( this.x, this.y, this.z );

	}

	copy( v ) {

		this.x = v.x;
		this.y = v.y;
		this.z = v.z;

		return this;

	}

	add( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
			return this.addVectors( v, w );

		}

		this.x += v.x;
		this.y += v.y;
		this.z += v.z;

		return this;

	}

	addScalar( s ) {

		this.x += s;
		this.y += s;
		this.z += s;

		return this;

	}

	addVectors( a, b ) {

		this.x = a.x + b.x;
		this.y = a.y + b.y;
		this.z = a.z + b.z;

		return this;

	}

	addScaledVector( v, s ) {

		this.x += v.x * s;
		this.y += v.y * s;
		this.z += v.z * s;

		return this;

	}

	sub( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
			return this.subVectors( v, w );

		}

		this.x -= v.x;
		this.y -= v.y;
		this.z -= v.z;

		return this;

	}

	subScalar( s ) {

		this.x -= s;
		this.y -= s;
		this.z -= s;

		return this;

	}

	subVectors( a, b ) {

		this.x = a.x - b.x;
		this.y = a.y - b.y;
		this.z = a.z - b.z;

		return this;

	}

	multiply( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );
			return this.multiplyVectors( v, w );

		}

		this.x *= v.x;
		this.y *= v.y;
		this.z *= v.z;

		return this;

	}

	multiplyScalar( scalar ) {

		this.x *= scalar;
		this.y *= scalar;
		this.z *= scalar;

		return this;

	}

	multiplyVectors( a, b ) {

		this.x = a.x * b.x;
		this.y = a.y * b.y;
		this.z = a.z * b.z;

		return this;

	}

	applyEuler( euler ) {

		if ( ! ( euler && euler.isEuler ) ) {

			console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );

		}

		return this.applyQuaternion( _quaternion$4.setFromEuler( euler ) );

	}

	applyAxisAngle( axis, angle ) {

		return this.applyQuaternion( _quaternion$4.setFromAxisAngle( axis, angle ) );

	}

	applyMatrix3( m ) {

		const x = this.x, y = this.y, z = this.z;
		const e = m.elements;

		this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
		this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
		this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;

		return this;

	}

	applyNormalMatrix( m ) {

		return this.applyMatrix3( m ).normalize();

	}

	applyMatrix4( m ) {

		const x = this.x, y = this.y, z = this.z;
		const e = m.elements;

		const w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );

		this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w;
		this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w;
		this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;

		return this;

	}

	applyQuaternion( q ) {

		const x = this.x, y = this.y, z = this.z;
		const qx = q.x, qy = q.y, qz = q.z, qw = q.w;

		// calculate quat * vector

		const ix = qw * x + qy * z - qz * y;
		const iy = qw * y + qz * x - qx * z;
		const iz = qw * z + qx * y - qy * x;
		const iw = - qx * x - qy * y - qz * z;

		// calculate result * inverse quat

		this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
		this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
		this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;

		return this;

	}

	project( camera ) {

		return this.applyMatrix4( camera.matrixWorldInverse ).applyMatrix4( camera.projectionMatrix );

	}

	unproject( camera ) {

		return this.applyMatrix4( camera.projectionMatrixInverse ).applyMatrix4( camera.matrixWorld );

	}

	transformDirection( m ) {

		// input: THREE.Matrix4 affine matrix
		// vector interpreted as a direction

		const x = this.x, y = this.y, z = this.z;
		const e = m.elements;

		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;
		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;
		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;

		return this.normalize();

	}

	divide( v ) {

		this.x /= v.x;
		this.y /= v.y;
		this.z /= v.z;

		return this;

	}

	divideScalar( scalar ) {

		return this.multiplyScalar( 1 / scalar );

	}

	min( v ) {

		this.x = Math.min( this.x, v.x );
		this.y = Math.min( this.y, v.y );
		this.z = Math.min( this.z, v.z );

		return this;

	}

	max( v ) {

		this.x = Math.max( this.x, v.x );
		this.y = Math.max( this.y, v.y );
		this.z = Math.max( this.z, v.z );

		return this;

	}

	clamp( min, max ) {

		// assumes min < max, componentwise

		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
		this.y = Math.max( min.y, Math.min( max.y, this.y ) );
		this.z = Math.max( min.z, Math.min( max.z, this.z ) );

		return this;

	}

	clampScalar( minVal, maxVal ) {

		this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
		this.y = Math.max( minVal, Math.min( maxVal, this.y ) );
		this.z = Math.max( minVal, Math.min( maxVal, this.z ) );

		return this;

	}

	clampLength( min, max ) {

		const length = this.length();

		return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

	}

	floor() {

		this.x = Math.floor( this.x );
		this.y = Math.floor( this.y );
		this.z = Math.floor( this.z );

		return this;

	}

	ceil() {

		this.x = Math.ceil( this.x );
		this.y = Math.ceil( this.y );
		this.z = Math.ceil( this.z );

		return this;

	}

	round() {

		this.x = Math.round( this.x );
		this.y = Math.round( this.y );
		this.z = Math.round( this.z );

		return this;

	}

	roundToZero() {

		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
		this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );

		return this;

	}

	negate() {

		this.x = - this.x;
		this.y = - this.y;
		this.z = - this.z;

		return this;

	}

	dot( v ) {

		return this.x * v.x + this.y * v.y + this.z * v.z;

	}

	// TODO lengthSquared?

	lengthSq() {

		return this.x * this.x + this.y * this.y + this.z * this.z;

	}

	length() {

		return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );

	}

	manhattanLength() {

		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );

	}

	normalize() {

		return this.divideScalar( this.length() || 1 );

	}

	setLength( length ) {

		return this.normalize().multiplyScalar( length );

	}

	lerp( v, alpha ) {

		this.x += ( v.x - this.x ) * alpha;
		this.y += ( v.y - this.y ) * alpha;
		this.z += ( v.z - this.z ) * alpha;

		return this;

	}

	lerpVectors( v1, v2, alpha ) {

		this.x = v1.x + ( v2.x - v1.x ) * alpha;
		this.y = v1.y + ( v2.y - v1.y ) * alpha;
		this.z = v1.z + ( v2.z - v1.z ) * alpha;

		return this;

	}

	cross( v, w ) {

		if ( w !== undefined ) {

			console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );
			return this.crossVectors( v, w );

		}

		return this.crossVectors( this, v );

	}

	crossVectors( a, b ) {

		const ax = a.x, ay = a.y, az = a.z;
		const bx = b.x, by = b.y, bz = b.z;

		this.x = ay * bz - az * by;
		this.y = az * bx - ax * bz;
		this.z = ax * by - ay * bx;

		return this;

	}

	projectOnVector( v ) {

		const denominator = v.lengthSq();

		if ( denominator === 0 ) return this.set( 0, 0, 0 );

		const scalar = v.dot( this ) / denominator;

		return this.copy( v ).multiplyScalar( scalar );

	}

	projectOnPlane( planeNormal ) {

		_vector$c.copy( this ).projectOnVector( planeNormal );

		return this.sub( _vector$c );

	}

	reflect( normal ) {

		// reflect incident vector off plane orthogonal to normal
		// normal is assumed to have unit length

		return this.sub( _vector$c.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );

	}

	angleTo( v ) {

		const denominator = Math.sqrt( this.lengthSq() * v.lengthSq() );

		if ( denominator === 0 ) return Math.PI / 2;

		const theta = this.dot( v ) / denominator;

		// clamp, to handle numerical problems

		return Math.acos( clamp( theta, - 1, 1 ) );

	}

	distanceTo( v ) {

		return Math.sqrt( this.distanceToSquared( v ) );

	}

	distanceToSquared( v ) {

		const dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;

		return dx * dx + dy * dy + dz * dz;

	}

	manhattanDistanceTo( v ) {

		return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );

	}

	setFromSpherical( s ) {

		return this.setFromSphericalCoords( s.radius, s.phi, s.theta );

	}

	setFromSphericalCoords( radius, phi, theta ) {

		const sinPhiRadius = Math.sin( phi ) * radius;

		this.x = sinPhiRadius * Math.sin( theta );
		this.y = Math.cos( phi ) * radius;
		this.z = sinPhiRadius * Math.cos( theta );

		return this;

	}

	setFromCylindrical( c ) {

		return this.setFromCylindricalCoords( c.radius, c.theta, c.y );

	}

	setFromCylindricalCoords( radius, theta, y ) {

		this.x = radius * Math.sin( theta );
		this.y = y;
		this.z = radius * Math.cos( theta );

		return this;

	}

	setFromMatrixPosition( m ) {

		const e = m.elements;

		this.x = e[ 12 ];
		this.y = e[ 13 ];
		this.z = e[ 14 ];

		return this;

	}

	setFromMatrixScale( m ) {

		const sx = this.setFromMatrixColumn( m, 0 ).length();
		const sy = this.setFromMatrixColumn( m, 1 ).length();
		const sz = this.setFromMatrixColumn( m, 2 ).length();

		this.x = sx;
		this.y = sy;
		this.z = sz;

		return this;

	}

	setFromMatrixColumn( m, index ) {

		return this.fromArray( m.elements, index * 4 );

	}

	setFromMatrix3Column( m, index ) {

		return this.fromArray( m.elements, index * 3 );

	}

	equals( v ) {

		return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );

	}

	fromArray( array, offset = 0 ) {

		this.x = array[ offset ];
		this.y = array[ offset + 1 ];
		this.z = array[ offset + 2 ];

		return this;

	}

	toArray( array = [], offset = 0 ) {

		array[ offset ] = this.x;
		array[ offset + 1 ] = this.y;
		array[ offset + 2 ] = this.z;

		return array;

	}

	fromBufferAttribute( attribute, index, offset ) {

		if ( offset !== undefined ) {

			console.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' );

		}

		this.x = attribute.getX( index );
		this.y = attribute.getY( index );
		this.z = attribute.getZ( index );

		return this;

	}

	random() {

		this.x = Math.random();
		this.y = Math.random();
		this.z = Math.random();

		return this;

	}

	randomDirection() {

		// Derived from https://mathworld.wolfram.com/SpherePointPicking.html

		const u = ( Math.random() - 0.5 ) * 2;
		const t = Math.random() * Math.PI * 2;
		const f = Math.sqrt( 1 - u ** 2 );

		this.x = f * Math.cos( t );
		this.y = f * Math.sin( t );
		this.z = u;

		return this;

	}

	*[ Symbol.iterator ]() {

		yield this.x;
		yield this.y;
		yield this.z;

	}

}

Vector3.prototype.isVector3 = true;

const _vector$c = /*@__PURE__*/ new Vector3();
const _quaternion$4 = /*@__PURE__*/ new Quaternion();

class Box3 {

	constructor( min = new Vector3( + Infinity, + Infinity, + Infinity ), max = new Vector3( - Infinity, - Infinity, - Infinity ) ) {

		this.min = min;
		this.max = max;

	}

	set( min, max ) {

		this.min.copy( min );
		this.max.copy( max );

		return this;

	}

	setFromArray( array ) {

		let minX = + Infinity;
		let minY = + Infinity;
		let minZ = + Infinity;

		let maxX = - Infinity;
		let maxY = - Infinity;
		let maxZ = - Infinity;

		for ( let i = 0, l = array.length; i < l; i += 3 ) {

			const x = array[ i ];
			const y = array[ i + 1 ];
			const z = array[ i + 2 ];

			if ( x < minX ) minX = x;
			if ( y < minY ) minY = y;
			if ( z < minZ ) minZ = z;

			if ( x > maxX ) maxX = x;
			if ( y > maxY ) maxY = y;
			if ( z > maxZ ) maxZ = z;

		}

		this.min.set( minX, minY, minZ );
		this.max.set( maxX, maxY, maxZ );

		return this;

	}

	setFromBufferAttribute( attribute ) {

		let minX = + Infinity;
		let minY = + Infinity;
		let minZ = + Infinity;

		let maxX = - Infinity;
		let maxY = - Infinity;
		let maxZ = - Infinity;

		for ( let i = 0, l = attribute.count; i < l; i ++ ) {

			const x = attribute.getX( i );
			const y = attribute.getY( i );
			const z = attribute.getZ( i );

			if ( x < minX ) minX = x;
			if ( y < minY ) minY = y;
			if ( z < minZ ) minZ = z;

			if ( x > maxX ) maxX = x;
			if ( y > maxY ) maxY = y;
			if ( z > maxZ ) maxZ = z;

		}

		this.min.set( minX, minY, minZ );
		this.max.set( maxX, maxY, maxZ );

		return this;

	}

	setFromPoints( points ) {

		this.makeEmpty();

		for ( let i = 0, il = points.length; i < il; i ++ ) {

			this.expandByPoint( points[ i ] );

		}

		return this;

	}

	setFromCenterAndSize( center, size ) {

		const halfSize = _vector$b.copy( size ).multiplyScalar( 0.5 );

		this.min.copy( center ).sub( halfSize );
		this.max.copy( center ).add( halfSize );

		return this;

	}

	setFromObject( object, precise = false ) {

		this.makeEmpty();

		return this.expandByObject( object, precise );

	}

	clone() {

		return new this.constructor().copy( this );

	}

	copy( box ) {

		this.min.copy( box.min );
		this.max.copy( box.max );

		return this;

	}

	makeEmpty() {

		this.min.x = this.min.y = this.min.z = + Infinity;
		this.max.x = this.max.y = this.max.z = - Infinity;

		return this;

	}

	isEmpty() {

		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

		return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );

	}

	getCenter( target ) {

		return this.isEmpty() ? target.set( 0, 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

	}

	getSize( target ) {

		return this.isEmpty() ? target.set( 0, 0, 0 ) : target.subVectors( this.max, this.min );

	}

	expandByPoint( point ) {

		this.min.min( point );
		this.max.max( point );

		return this;

	}

	expandByVector( vector ) {

		this.min.sub( vector );
		this.max.add( vector );

		return this;

	}

	expandByScalar( scalar ) {

		this.min.addScalar( - scalar );
		this.max.addScalar( scalar );

		return this;

	}

	expandByObject( object, precise = false ) {

		// Computes the world-axis-aligned bounding box of an object (including its children),
		// accounting for both the object's, and children's, world transforms

		object.updateWorldMatrix( false, false );

		const geometry = object.geometry;

		if ( geometry !== undefined ) {

			if ( precise && geometry.attributes != undefined && geometry.attributes.position !== undefined ) {

				const position = geometry.attributes.position;
				for ( let i = 0, l = position.count; i < l; i ++ ) {

					_vector$b.fromBufferAttribute( position, i ).applyMatrix4( object.matrixWorld );
					this.expandByPoint( _vector$b );

				}

			} else {

				if ( geometry.boundingBox === null ) {

					geometry.computeBoundingBox();

				}

				_box$3.copy( geometry.boundingBox );
				_box$3.applyMatrix4( object.matrixWorld );

				this.union( _box$3 );

			}

		}

		const children = object.children;

		for ( let i = 0, l = children.length; i < l; i ++ ) {

			this.expandByObject( children[ i ], precise );

		}

		return this;

	}

	containsPoint( point ) {

		return point.x < this.min.x || point.x > this.max.x ||
			point.y < this.min.y || point.y > this.max.y ||
			point.z < this.min.z || point.z > this.max.z ? false : true;

	}

	containsBox( box ) {

		return this.min.x <= box.min.x && box.max.x <= this.max.x &&
			this.min.y <= box.min.y && box.max.y <= this.max.y &&
			this.min.z <= box.min.z && box.max.z <= this.max.z;

	}

	getParameter( point, target ) {

		// This can potentially have a divide by zero if the box
		// has a size dimension of 0.

		return target.set(
			( point.x - this.min.x ) / ( this.max.x - this.min.x ),
			( point.y - this.min.y ) / ( this.max.y - this.min.y ),
			( point.z - this.min.z ) / ( this.max.z - this.min.z )
		);

	}

	intersectsBox( box ) {

		// using 6 splitting planes to rule out intersections.
		return box.max.x < this.min.x || box.min.x > this.max.x ||
			box.max.y < this.min.y || box.min.y > this.max.y ||
			box.max.z < this.min.z || box.min.z > this.max.z ? false : true;

	}

	intersectsSphere( sphere ) {

		// Find the point on the AABB closest to the sphere center.
		this.clampPoint( sphere.center, _vector$b );

		// If that point is inside the sphere, the AABB and sphere intersect.
		return _vector$b.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );

	}

	intersectsPlane( plane ) {

		// We compute the minimum and maximum dot product values. If those values
		// are on the same side (back or front) of the plane, then there is no intersection.

		let min, max;

		if ( plane.normal.x > 0 ) {

			min = plane.normal.x * this.min.x;
			max = plane.normal.x * this.max.x;

		} else {

			min = plane.normal.x * this.max.x;
			max = plane.normal.x * this.min.x;

		}

		if ( plane.normal.y > 0 ) {

			min += plane.normal.y * this.min.y;
			max += plane.normal.y * this.max.y;

		} else {

			min += plane.normal.y * this.max.y;
			max += plane.normal.y * this.min.y;

		}

		if ( plane.normal.z > 0 ) {

			min += plane.normal.z * this.min.z;
			max += plane.normal.z * this.max.z;

		} else {

			min += plane.normal.z * this.max.z;
			max += plane.normal.z * this.min.z;

		}

		return ( min <= - plane.constant && max >= - plane.constant );

	}

	intersectsTriangle( triangle ) {

		if ( this.isEmpty() ) {

			return false;

		}

		// compute box center and extents
		this.getCenter( _center );
		_extents.subVectors( this.max, _center );

		// translate triangle to aabb origin
		_v0$2.subVectors( triangle.a, _center );
		_v1$7.subVectors( triangle.b, _center );
		_v2$3.subVectors( triangle.c, _center );

		// compute edge vectors for triangle
		_f0.subVectors( _v1$7, _v0$2 );
		_f1.subVectors( _v2$3, _v1$7 );
		_f2.subVectors( _v0$2, _v2$3 );

		// test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
		// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
		// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)
		let axes = [
			0, - _f0.z, _f0.y, 0, - _f1.z, _f1.y, 0, - _f2.z, _f2.y,
			_f0.z, 0, - _f0.x, _f1.z, 0, - _f1.x, _f2.z, 0, - _f2.x,
			- _f0.y, _f0.x, 0, - _f1.y, _f1.x, 0, - _f2.y, _f2.x, 0
		];
		if ( ! satForAxes( axes, _v0$2, _v1$7, _v2$3, _extents ) ) {

			return false;

		}

		// test 3 face normals from the aabb
		axes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ];
		if ( ! satForAxes( axes, _v0$2, _v1$7, _v2$3, _extents ) ) {

			return false;

		}

		// finally testing the face normal of the triangle
		// use already existing triangle edge vectors here
		_triangleNormal.crossVectors( _f0, _f1 );
		axes = [ _triangleNormal.x, _triangleNormal.y, _triangleNormal.z ];

		return satForAxes( axes, _v0$2, _v1$7, _v2$3, _extents );

	}

	clampPoint( point, target ) {

		return target.copy( point ).clamp( this.min, this.max );

	}

	distanceToPoint( point ) {

		const clampedPoint = _vector$b.copy( point ).clamp( this.min, this.max );

		return clampedPoint.sub( point ).length();

	}

	getBoundingSphere( target ) {

		this.getCenter( target.center );

		target.radius = this.getSize( _vector$b ).length() * 0.5;

		return target;

	}

	intersect( box ) {

		this.min.max( box.min );
		this.max.min( box.max );

		// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
		if ( this.isEmpty() ) this.makeEmpty();

		return this;

	}

	union( box ) {

		this.min.min( box.min );
		this.max.max( box.max );

		return this;

	}

	applyMatrix4( matrix ) {

		// transform of empty box is an empty box.
		if ( this.isEmpty() ) return this;

		// NOTE: I am using a binary pattern to specify all 2^3 combinations below
		_points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000
		_points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001
		_points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010
		_points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011
		_points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100
		_points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101
		_points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110
		_points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 111

		this.setFromPoints( _points );

		return this;

	}

	translate( offset ) {

		this.min.add( offset );
		this.max.add( offset );

		return this;

	}

	equals( box ) {

		return box.min.equals( this.min ) && box.max.equals( this.max );

	}

}

Box3.prototype.isBox3 = true;

const _points = [
	/*@__PURE__*/ new Vector3(),
	/*@__PURE__*/ new Vector3(),
	/*@__PURE__*/ new Vector3(),
	/*@__PURE__*/ new Vector3(),
	/*@__PURE__*/ new Vector3(),
	/*@__PURE__*/ new Vector3(),
	/*@__PURE__*/ new Vector3(),
	/*@__PURE__*/ new Vector3()
];

const _vector$b = /*@__PURE__*/ new Vector3();

const _box$3 = /*@__PURE__*/ new Box3();

// triangle centered vertices

const _v0$2 = /*@__PURE__*/ new Vector3();
const _v1$7 = /*@__PURE__*/ new Vector3();
const _v2$3 = /*@__PURE__*/ new Vector3();

// triangle edge vectors

const _f0 = /*@__PURE__*/ new Vector3();
const _f1 = /*@__PURE__*/ new Vector3();
const _f2 = /*@__PURE__*/ new Vector3();

const _center = /*@__PURE__*/ new Vector3();
const _extents = /*@__PURE__*/ new Vector3();
const _triangleNormal = /*@__PURE__*/ new Vector3();
const _testAxis = /*@__PURE__*/ new Vector3();

function satForAxes( axes, v0, v1, v2, extents ) {

	for ( let i = 0, j = axes.length - 3; i <= j; i += 3 ) {

		_testAxis.fromArray( axes, i );
		// project the aabb onto the seperating axis
		const r = extents.x * Math.abs( _testAxis.x ) + extents.y * Math.abs( _testAxis.y ) + extents.z * Math.abs( _testAxis.z );
		// project all 3 vertices of the triangle onto the seperating axis
		const p0 = v0.dot( _testAxis );
		const p1 = v1.dot( _testAxis );
		const p2 = v2.dot( _testAxis );
		// actual test, basically see if either of the most extreme of the triangle points intersects r
		if ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) {

			// points of the projected triangle are outside the projected half-length of the aabb
			// the axis is seperating and we can exit
			return false;

		}

	}

	return true;

}

const _box$2 = /*@__PURE__*/ new Box3();
const _v1$6 = /*@__PURE__*/ new Vector3();
const _toFarthestPoint = /*@__PURE__*/ new Vector3();
const _toPoint = /*@__PURE__*/ new Vector3();

class Sphere {

	constructor( center = new Vector3(), radius = - 1 ) {

		this.center = center;
		this.radius = radius;

	}

	set( center, radius ) {

		this.center.copy( center );
		this.radius = radius;

		return this;

	}

	setFromPoints( points, optionalCenter ) {

		const center = this.center;

		if ( optionalCenter !== undefined ) {

			center.copy( optionalCenter );

		} else {

			_box$2.setFromPoints( points ).getCenter( center );

		}

		let maxRadiusSq = 0;

		for ( let i = 0, il = points.length; i < il; i ++ ) {

			maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );

		}

		this.radius = Math.sqrt( maxRadiusSq );

		return this;

	}

	copy( sphere ) {

		this.center.copy( sphere.center );
		this.radius = sphere.radius;

		return this;

	}

	isEmpty() {

		return ( this.radius < 0 );

	}

	makeEmpty() {

		this.center.set( 0, 0, 0 );
		this.radius = - 1;

		return this;

	}

	containsPoint( point ) {

		return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );

	}

	distanceToPoint( point ) {

		return ( point.distanceTo( this.center ) - this.radius );

	}

	intersectsSphere( sphere ) {

		const radiusSum = this.radius + sphere.radius;

		return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );

	}

	intersectsBox( box ) {

		return box.intersectsSphere( this );

	}

	intersectsPlane( plane ) {

		return Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius;

	}

	clampPoint( point, target ) {

		const deltaLengthSq = this.center.distanceToSquared( point );

		target.copy( point );

		if ( deltaLengthSq > ( this.radius * this.radius ) ) {

			target.sub( this.center ).normalize();
			target.multiplyScalar( this.radius ).add( this.center );

		}

		return target;

	}

	getBoundingBox( target ) {

		if ( this.isEmpty() ) {

			// Empty sphere produces empty bounding box
			target.makeEmpty();
			return target;

		}

		target.set( this.center, this.center );
		target.expandByScalar( this.radius );

		return target;

	}

	applyMatrix4( matrix ) {

		this.center.applyMatrix4( matrix );
		this.radius = this.radius * matrix.getMaxScaleOnAxis();

		return this;

	}

	translate( offset ) {

		this.center.add( offset );

		return this;

	}

	expandByPoint( point ) {

		// from https://github.com/juj/MathGeoLib/blob/2940b99b99cfe575dd45103ef20f4019dee15b54/src/Geometry/Sphere.cpp#L649-L671

		_toPoint.subVectors( point, this.center );

		const lengthSq = _toPoint.lengthSq();

		if ( lengthSq > ( this.radius * this.radius ) ) {

			const length = Math.sqrt( lengthSq );
			const missingRadiusHalf = ( length - this.radius ) * 0.5;

			// Nudge this sphere towards the target point. Add half the missing distance to radius,
			// and the other half to position. This gives a tighter enclosure, instead of if
			// the whole missing distance were just added to radius.

			this.center.add( _toPoint.multiplyScalar( missingRadiusHalf / length ) );
			this.radius += missingRadiusHalf;

		}

		return this;

	}

	union( sphere ) {

		// from https://github.com/juj/MathGeoLib/blob/2940b99b99cfe575dd45103ef20f4019dee15b54/src/Geometry/Sphere.cpp#L759-L769

		// To enclose another sphere into this sphere, we only need to enclose two points:
		// 1) Enclose the farthest point on the other sphere into this sphere.
		// 2) Enclose the opposite point of the farthest point into this sphere.

		 if ( this.center.equals( sphere.center ) === true ) {

			 _toFarthestPoint.set( 0, 0, 1 ).multiplyScalar( sphere.radius );


		} else {

			_toFarthestPoint.subVectors( sphere.center, this.center ).normalize().multiplyScalar( sphere.radius );

		}

		this.expandByPoint( _v1$6.copy( sphere.center ).add( _toFarthestPoint ) );
		this.expandByPoint( _v1$6.copy( sphere.center ).sub( _toFarthestPoint ) );

		return this;

	}

	equals( sphere ) {

		return sphere.center.equals( this.center ) && ( sphere.radius === this.radius );

	}

	clone() {

		return new this.constructor().copy( this );

	}

}

const _vector$a = /*@__PURE__*/ new Vector3();
const _segCenter = /*@__PURE__*/ new Vector3();
const _segDir = /*@__PURE__*/ new Vector3();
const _diff = /*@__PURE__*/ new Vector3();

const _edge1 = /*@__PURE__*/ new Vector3();
const _edge2 = /*@__PURE__*/ new Vector3();
const _normal$1 = /*@__PURE__*/ new Vector3();

class Ray {

	constructor( origin = new Vector3(), direction = new Vector3( 0, 0, - 1 ) ) {

		this.origin = origin;
		this.direction = direction;

	}

	set( origin, direction ) {

		this.origin.copy( origin );
		this.direction.copy( direction );

		return this;

	}

	copy( ray ) {

		this.origin.copy( ray.origin );
		this.direction.copy( ray.direction );

		return this;

	}

	at( t, target ) {

		return target.copy( this.direction ).multiplyScalar( t ).add( this.origin );

	}

	lookAt( v ) {

		this.direction.copy( v ).sub( this.origin ).normalize();

		return this;

	}

	recast( t ) {

		this.origin.copy( this.at( t, _vector$a ) );

		return this;

	}

	closestPointToPoint( point, target ) {

		target.subVectors( point, this.origin );

		const directionDistance = target.dot( this.direction );

		if ( directionDistance < 0 ) {

			return target.copy( this.origin );

		}

		return target.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

	}

	distanceToPoint( point ) {

		return Math.sqrt( this.distanceSqToPoint( point ) );

	}

	distanceSqToPoint( point ) {

		const directionDistance = _vector$a.subVectors( point, this.origin ).dot( this.direction );

		// point behind the ray

		if ( directionDistance < 0 ) {

			return this.origin.distanceToSquared( point );

		}

		_vector$a.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

		return _vector$a.distanceToSquared( point );

	}

	distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {

		// from https://github.com/pmjoniak/GeometricTools/blob/master/GTEngine/Include/Mathematics/GteDistRaySegment.h
		// It returns the min distance between the ray and the segment
		// defined by v0 and v1
		// It can also set two optional targets :
		// - The closest point on the ray
		// - The closest point on the segment

		_segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
		_segDir.copy( v1 ).sub( v0 ).normalize();
		_diff.copy( this.origin ).sub( _segCenter );

		const segExtent = v0.distanceTo( v1 ) * 0.5;
		const a01 = - this.direction.dot( _segDir );
		const b0 = _diff.dot( this.direction );
		const b1 = - _diff.dot( _segDir );
		const c = _diff.lengthSq();
		const det = Math.abs( 1 - a01 * a01 );
		let s0, s1, sqrDist, extDet;

		if ( det > 0 ) {

			// The ray and segment are not parallel.

			s0 = a01 * b1 - b0;
			s1 = a01 * b0 - b1;
			extDet = segExtent * det;

			if ( s0 >= 0 ) {

				if ( s1 >= - extDet ) {

					if ( s1 <= extDet ) {

						// region 0
						// Minimum at interior points of ray and segment.

						const invDet = 1 / det;
						s0 *= invDet;
						s1 *= invDet;
						sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;

					} else {

						// region 1

						s1 = segExtent;
						s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

					}

				} else {

					// region 5

					s1 = - segExtent;
					s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

				}

			} else {

				if ( s1 <= - extDet ) {

					// region 4

					s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
					s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

				} else if ( s1 <= extDet ) {

					// region 3

					s0 = 0;
					s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
					sqrDist = s1 * ( s1 + 2 * b1 ) + c;

				} else {

					// region 2

					s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
					s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

				}

			}

		} else {

			// Ray and segment are parallel.

			s1 = ( a01 > 0 ) ? - segExtent : segExtent;
			s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
			sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

		}

		if ( optionalPointOnRay ) {

			optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );

		}

		if ( optionalPointOnSegment ) {

			optionalPointOnSegment.copy( _segDir ).multiplyScalar( s1 ).add( _segCenter );

		}

		return sqrDist;

	}

	intersectSphere( sphere, target ) {

		_vector$a.subVectors( sphere.center, this.origin );
		const tca = _vector$a.dot( this.direction );
		const d2 = _vector$a.dot( _vector$a ) - tca * tca;
		const radius2 = sphere.radius * sphere.radius;

		if ( d2 > radius2 ) return null;

		const thc = Math.sqrt( radius2 - d2 );

		// t0 = first intersect point - entrance on front of sphere
		const t0 = tca - thc;

		// t1 = second intersect point - exit point on back of sphere
		const t1 = tca + thc;

		// test to see if both t0 and t1 are behind the ray - if so, return null
		if ( t0 < 0 && t1 < 0 ) return null;

		// test to see if t0 is behind the ray:
		// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
		// in order to always return an intersect point that is in front of the ray.
		if ( t0 < 0 ) return this.at( t1, target );

		// else t0 is in front of the ray, so return the first collision point scaled by t0
		return this.at( t0, target );

	}

	intersectsSphere( sphere ) {

		return this.distanceSqToPoint( sphere.center ) <= ( sphere.radius * sphere.radius );

	}

	distanceToPlane( plane ) {

		const denominator = plane.normal.dot( this.direction );

		if ( denominator === 0 ) {

			// line is coplanar, return origin
			if ( plane.distanceToPoint( this.origin ) === 0 ) {

				return 0;

			}

			// Null is preferable to undefined since undefined means.... it is undefined

			return null;

		}

		const t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;

		// Return if the ray never intersects the plane

		return t >= 0 ? t : null;

	}

	intersectPlane( plane, target ) {

		const t = this.distanceToPlane( plane );

		if ( t === null ) {

			return null;

		}

		return this.at( t, target );

	}

	intersectsPlane( plane ) {

		// check if the ray lies on the plane first

		const distToPoint = plane.distanceToPoint( this.origin );

		if ( distToPoint === 0 ) {

			return true;

		}

		const denominator = plane.normal.dot( this.direction );

		if ( denominator * distToPoint < 0 ) {

			return true;

		}

		// ray origin is behind the plane (and is pointing behind it)

		return false;

	}

	intersectBox( box, target ) {

		let tmin, tmax, tymin, tymax, tzmin, tzmax;

		const invdirx = 1 / this.direction.x,
			invdiry = 1 / this.direction.y,
			invdirz = 1 / this.direction.z;

		const origin = this.origin;

		if ( invdirx >= 0 ) {

			tmin = ( box.min.x - origin.x ) * invdirx;
			tmax = ( box.max.x - origin.x ) * invdirx;

		} else {

			tmin = ( box.max.x - origin.x ) * invdirx;
			tmax = ( box.min.x - origin.x ) * invdirx;

		}

		if ( invdiry >= 0 ) {

			tymin = ( box.min.y - origin.y ) * invdiry;
			tymax = ( box.max.y - origin.y ) * invdiry;

		} else {

			tymin = ( box.max.y - origin.y ) * invdiry;
			tymax = ( box.min.y - origin.y ) * invdiry;

		}

		if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;

		// These lines also handle the case where tmin or tmax is NaN
		// (result of 0 * Infinity). x !== x returns true if x is NaN

		if ( tymin > tmin || tmin !== tmin ) tmin = tymin;

		if ( tymax < tmax || tmax !== tmax ) tmax = tymax;

		if ( invdirz >= 0 ) {

			tzmin = ( box.min.z - origin.z ) * invdirz;
			tzmax = ( box.max.z - origin.z ) * invdirz;

		} else {

			tzmin = ( box.max.z - origin.z ) * invdirz;
			tzmax = ( box.min.z - origin.z ) * invdirz;

		}

		if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;

		if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;

		if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;

		//return point closest to the ray (positive side)

		if ( tmax < 0 ) return null;

		return this.at( tmin >= 0 ? tmin : tmax, target );

	}

	intersectsBox( box ) {

		return this.intersectBox( box, _vector$a ) !== null;

	}

	intersectTriangle( a, b, c, backfaceCulling, target ) {

		// Compute the offset origin, edges, and normal.

		// from https://github.com/pmjoniak/GeometricTools/blob/master/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h

		_edge1.subVectors( b, a );
		_edge2.subVectors( c, a );
		_normal$1.crossVectors( _edge1, _edge2 );

		// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
		// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
		//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
		//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
		//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
		let DdN = this.direction.dot( _normal$1 );
		let sign;

		if ( DdN > 0 ) {

			if ( backfaceCulling ) return null;
			sign = 1;

		} else if ( DdN < 0 ) {

			sign = - 1;
			DdN = - DdN;

		} else {

			return null;

		}

		_diff.subVectors( this.origin, a );
		const DdQxE2 = sign * this.direction.dot( _edge2.crossVectors( _diff, _edge2 ) );

		// b1 < 0, no intersection
		if ( DdQxE2 < 0 ) {

			return null;

		}

		const DdE1xQ = sign * this.direction.dot( _edge1.cross( _diff ) );

		// b2 < 0, no intersection
		if ( DdE1xQ < 0 ) {

			return null;

		}

		// b1+b2 > 1, no intersection
		if ( DdQxE2 + DdE1xQ > DdN ) {

			return null;

		}

		// Line intersects triangle, check if ray does.
		const QdN = - sign * _diff.dot( _normal$1 );

		// t < 0, no intersection
		if ( QdN < 0 ) {

			return null;

		}

		// Ray intersects triangle.
		return this.at( QdN / DdN, target );

	}

	applyMatrix4( matrix4 ) {

		this.origin.applyMatrix4( matrix4 );
		this.direction.transformDirection( matrix4 );

		return this;

	}

	equals( ray ) {

		return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );

	}

	clone() {

		return new this.constructor().copy( this );

	}

}

class Matrix4 {

	constructor() {

		this.elements = [

			1, 0, 0, 0,
			0, 1, 0, 0,
			0, 0, 1, 0,
			0, 0, 0, 1

		];

		if ( arguments.length > 0 ) {

			console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );

		}

	}

	set( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {

		const te = this.elements;

		te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;
		te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;
		te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;
		te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;

		return this;

	}

	identity() {

		this.set(

			1, 0, 0, 0,
			0, 1, 0, 0,
			0, 0, 1, 0,
			0, 0, 0, 1

		);

		return this;

	}

	clone() {

		return new Matrix4().fromArray( this.elements );

	}

	copy( m ) {

		const te = this.elements;
		const me = m.elements;

		te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];
		te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];
		te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];
		te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];

		return this;

	}

	copyPosition( m ) {

		const te = this.elements, me = m.elements;

		te[ 12 ] = me[ 12 ];
		te[ 13 ] = me[ 13 ];
		te[ 14 ] = me[ 14 ];

		return this;

	}

	setFromMatrix3( m ) {

		const me = m.elements;

		this.set(

			me[ 0 ], me[ 3 ], me[ 6 ], 0,
			me[ 1 ], me[ 4 ], me[ 7 ], 0,
			me[ 2 ], me[ 5 ], me[ 8 ], 0,
			0, 0, 0, 1

		);

		return this;

	}

	extractBasis( xAxis, yAxis, zAxis ) {

		xAxis.setFromMatrixColumn( this, 0 );
		yAxis.setFromMatrixColumn( this, 1 );
		zAxis.setFromMatrixColumn( this, 2 );

		return this;

	}

	makeBasis( xAxis, yAxis, zAxis ) {

		this.set(
			xAxis.x, yAxis.x, zAxis.x, 0,
			xAxis.y, yAxis.y, zAxis.y, 0,
			xAxis.z, yAxis.z, zAxis.z, 0,
			0, 0, 0, 1
		);

		return this;

	}

	extractRotation( m ) {

		// this method does not support reflection matrices

		const te = this.elements;
		const me = m.elements;

		const scaleX = 1 / _v1$5.setFromMatrixColumn( m, 0 ).length();
		const scaleY = 1 / _v1$5.setFromMatrixColumn( m, 1 ).length();
		const scaleZ = 1 / _v1$5.setFromMatrixColumn( m, 2 ).length();

		te[ 0 ] = me[ 0 ] * scaleX;
		te[ 1 ] = me[ 1 ] * scaleX;
		te[ 2 ] = me[ 2 ] * scaleX;
		te[ 3 ] = 0;

		te[ 4 ] = me[ 4 ] * scaleY;
		te[ 5 ] = me[ 5 ] * scaleY;
		te[ 6 ] = me[ 6 ] * scaleY;
		te[ 7 ] = 0;

		te[ 8 ] = me[ 8 ] * scaleZ;
		te[ 9 ] = me[ 9 ] * scaleZ;
		te[ 10 ] = me[ 10 ] * scaleZ;
		te[ 11 ] = 0;

		te[ 12 ] = 0;
		te[ 13 ] = 0;
		te[ 14 ] = 0;
		te[ 15 ] = 1;

		return this;

	}

	makeRotationFromEuler( euler ) {

		if ( ! ( euler && euler.isEuler ) ) {

			console.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );

		}

		const te = this.elements;

		const x = euler.x, y = euler.y, z = euler.z;
		const a = Math.cos( x ), b = Math.sin( x );
		const c = Math.cos( y ), d = Math.sin( y );
		const e = Math.cos( z ), f = Math.sin( z );

		if ( euler.order === 'XYZ' ) {

			const ae = a * e, af = a * f, be = b * e, bf = b * f;

			te[ 0 ] = c * e;
			te[ 4 ] = - c * f;
			te[ 8 ] = d;

			te[ 1 ] = af + be * d;
			te[ 5 ] = ae - bf * d;
			te[ 9 ] = - b * c;

			te[ 2 ] = bf - ae * d;
			te[ 6 ] = be + af * d;
			te[ 10 ] = a * c;

		} else if ( euler.order === 'YXZ' ) {

			const ce = c * e, cf = c * f, de = d * e, df = d * f;

			te[ 0 ] = ce + df * b;
			te[ 4 ] = de * b - cf;
			te[ 8 ] = a * d;

			te[ 1 ] = a * f;
			te[ 5 ] = a * e;
			te[ 9 ] = - b;

			te[ 2 ] = cf * b - de;
			te[ 6 ] = df + ce * b;
			te[ 10 ] = a * c;

		} else if ( euler.order === 'ZXY' ) {

			const ce = c * e, cf = c * f, de = d * e, df = d * f;

			te[ 0 ] = ce - df * b;
			te[ 4 ] = - a * f;
			te[ 8 ] = de + cf * b;

			te[ 1 ] = cf + de * b;
			te[ 5 ] = a * e;
			te[ 9 ] = df - ce * b;

			te[ 2 ] = - a * d;
			te[ 6 ] = b;
			te[ 10 ] = a * c;

		} else if ( euler.order === 'ZYX' ) {

			const ae = a * e, af = a * f, be = b * e, bf = b * f;

			te[ 0 ] = c * e;
			te[ 4 ] = be * d - af;
			te[ 8 ] = ae * d + bf;

			te[ 1 ] = c * f;
			te[ 5 ] = bf * d + ae;
			te[ 9 ] = af * d - be;

			te[ 2 ] = - d;
			te[ 6 ] = b * c;
			te[ 10 ] = a * c;

		} else if ( euler.order === 'YZX' ) {

			const ac = a * c, ad = a * d, bc = b * c, bd = b * d;

			te[ 0 ] = c * e;
			te[ 4 ] = bd - ac * f;
			te[ 8 ] = bc * f + ad;

			te[ 1 ] = f;
			te[ 5 ] = a * e;
			te[ 9 ] = - b * e;

			te[ 2 ] = - d * e;
			te[ 6 ] = ad * f + bc;
			te[ 10 ] = ac - bd * f;

		} else if ( euler.order === 'XZY' ) {

			const ac = a * c, ad = a * d, bc = b * c, bd = b * d;

			te[ 0 ] = c * e;
			te[ 4 ] = - f;
			te[ 8 ] = d * e;

			te[ 1 ] = ac * f + bd;
			te[ 5 ] = a * e;
			te[ 9 ] = ad * f - bc;

			te[ 2 ] = bc * f - ad;
			te[ 6 ] = b * e;
			te[ 10 ] = bd * f + ac;

		}

		// bottom row
		te[ 3 ] = 0;
		te[ 7 ] = 0;
		te[ 11 ] = 0;

		// last column
		te[ 12 ] = 0;
		te[ 13 ] = 0;
		te[ 14 ] = 0;
		te[ 15 ] = 1;

		return this;

	}

	makeRotationFromQuaternion( q ) {

		return this.compose( _zero, q, _one );

	}

	lookAt( eye, target, up ) {

		const te = this.elements;

		_z.subVectors( eye, target );

		if ( _z.lengthSq() === 0 ) {

			// eye and target are in the same position

			_z.z = 1;

		}

		_z.normalize();
		_x.crossVectors( up, _z );

		if ( _x.lengthSq() === 0 ) {

			// up and z are parallel

			if ( Math.abs( up.z ) === 1 ) {

				_z.x += 0.0001;

			} else {

				_z.z += 0.0001;

			}

			_z.normalize();
			_x.crossVectors( up, _z );

		}

		_x.normalize();
		_y.crossVectors( _z, _x );

		te[ 0 ] = _x.x; te[ 4 ] = _y.x; te[ 8 ] = _z.x;
		te[ 1 ] = _x.y; te[ 5 ] = _y.y; te[ 9 ] = _z.y;
		te[ 2 ] = _x.z; te[ 6 ] = _y.z; te[ 10 ] = _z.z;

		return this;

	}

	multiply( m, n ) {

		if ( n !== undefined ) {

			console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );
			return this.multiplyMatrices( m, n );

		}

		return this.multiplyMatrices( this, m );

	}

	premultiply( m ) {

		return this.multiplyMatrices( m, this );

	}

	multiplyMatrices( a, b ) {

		const ae = a.elements;
		const be = b.elements;
		const te = this.elements;

		const a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];
		const a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];
		const a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];
		const a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];

		const b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];
		const b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];
		const b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];
		const b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];

		te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
		te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
		te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
		te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;

		te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
		te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
		te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
		te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;

		te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
		te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
		te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
		te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;

		te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
		te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
		te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
		te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;

		return this;

	}

	multiplyScalar( s ) {

		const te = this.elements;

		te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;
		te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;
		te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;
		te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;

		return this;

	}

	determinant() {

		const te = this.elements;

		const n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];
		const n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];
		const n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];
		const n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];

		//TODO: make this more efficient
		//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )

		return (
			n41 * (
				+ n14 * n23 * n32
				 - n13 * n24 * n32
				 - n14 * n22 * n33
				 + n12 * n24 * n33
				 + n13 * n22 * n34
				 - n12 * n23 * n34
			) +
			n42 * (
				+ n11 * n23 * n34
				 - n11 * n24 * n33
				 + n14 * n21 * n33
				 - n13 * n21 * n34
				 + n13 * n24 * n31
				 - n14 * n23 * n31
			) +
			n43 * (
				+ n11 * n24 * n32
				 - n11 * n22 * n34
				 - n14 * n21 * n32
				 + n12 * n21 * n34
				 + n14 * n22 * n31
				 - n12 * n24 * n31
			) +
			n44 * (
				- n13 * n22 * n31
				 - n11 * n23 * n32
				 + n11 * n22 * n33
				 + n13 * n21 * n32
				 - n12 * n21 * n33
				 + n12 * n23 * n31
			)

		);

	}

	transpose() {

		const te = this.elements;
		let tmp;

		tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;
		tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;
		tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;

		tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;
		tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;
		tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;

		return this;

	}

	setPosition( x, y, z ) {

		const te = this.elements;

		if ( x.isVector3 ) {

			te[ 12 ] = x.x;
			te[ 13 ] = x.y;
			te[ 14 ] = x.z;

		} else {

			te[ 12 ] = x;
			te[ 13 ] = y;
			te[ 14 ] = z;

		}

		return this;

	}

	invert() {

		// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
		const te = this.elements,

			n11 = te[ 0 ], n21 = te[ 1 ], n31 = te[ 2 ], n41 = te[ 3 ],
			n12 = te[ 4 ], n22 = te[ 5 ], n32 = te[ 6 ], n42 = te[ 7 ],
			n13 = te[ 8 ], n23 = te[ 9 ], n33 = te[ 10 ], n43 = te[ 11 ],
			n14 = te[ 12 ], n24 = te[ 13 ], n34 = te[ 14 ], n44 = te[ 15 ],

			t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
			t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
			t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
			t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;

		const det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;

		if ( det === 0 ) return this.set( 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 );

		const detInv = 1 / det;

		te[ 0 ] = t11 * detInv;
		te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;
		te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;
		te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;

		te[ 4 ] = t12 * detInv;
		te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;
		te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;
		te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;

		te[ 8 ] = t13 * detInv;
		te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;
		te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;
		te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;

		te[ 12 ] = t14 * detInv;
		te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;
		te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;
		te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;

		return this;

	}

	scale( v ) {

		const te = this.elements;
		const x = v.x, y = v.y, z = v.z;

		te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;
		te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;
		te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;
		te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;

		return this;

	}

	getMaxScaleOnAxis() {

		const te = this.elements;

		const scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];
		const scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];
		const scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];

		return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );

	}

	makeTranslation( x, y, z ) {

		this.set(

			1, 0, 0, x,
			0, 1, 0, y,
			0, 0, 1, z,
			0, 0, 0, 1

		);

		return this;

	}

	makeRotationX( theta ) {

		const c = Math.cos( theta ), s = Math.sin( theta );

		this.set(

			1, 0, 0, 0,
			0, c, - s, 0,
			0, s, c, 0,
			0, 0, 0, 1

		);

		return this;

	}

	makeRotationY( theta ) {

		const c = Math.cos( theta ), s = Math.sin( theta );

		this.set(

			 c, 0, s, 0,
			 0, 1, 0, 0,
			- s, 0, c, 0,
			 0, 0, 0, 1

		);

		return this;

	}

	makeRotationZ( theta ) {

		const c = Math.cos( theta ), s = Math.sin( theta );

		this.set(

			c, - s, 0, 0,
			s, c, 0, 0,
			0, 0, 1, 0,
			0, 0, 0, 1

		);

		return this;

	}

	makeRotationAxis( axis, angle ) {

		// Based on http://www.gamedev.net/reference/articles/article1199.asp

		const c = Math.cos( angle );
		const s = Math.sin( angle );
		const t = 1 - c;
		const x = axis.x, y = axis.y, z = axis.z;
		const tx = t * x, ty = t * y;

		this.set(

			tx * x + c, tx * y - s * z, tx * z + s * y, 0,
			tx * y + s * z, ty * y + c, ty * z - s * x, 0,
			tx * z - s * y, ty * z + s * x, t * z * z + c, 0,
			0, 0, 0, 1

		);

		return this;

	}

	makeScale( x, y, z ) {

		this.set(

			x, 0, 0, 0,
			0, y, 0, 0,
			0, 0, z, 0,
			0, 0, 0, 1

		);

		return this;

	}

	makeShear( xy, xz, yx, yz, zx, zy ) {

		this.set(

			1, yx, zx, 0,
			xy, 1, zy, 0,
			xz, yz, 1, 0,
			0, 0, 0, 1

		);

		return this;

	}

	compose( position, quaternion, scale ) {

		const te = this.elements;

		const x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w;
		const x2 = x + x,	y2 = y + y, z2 = z + z;
		const xx = x * x2, xy = x * y2, xz = x * z2;
		const yy = y * y2, yz = y * z2, zz = z * z2;
		const wx = w * x2, wy = w * y2, wz = w * z2;

		const sx = scale.x, sy = scale.y, sz = scale.z;

		te[ 0 ] = ( 1 - ( yy + zz ) ) * sx;
		te[ 1 ] = ( xy + wz ) * sx;
		te[ 2 ] = ( xz - wy ) * sx;
		te[ 3 ] = 0;

		te[ 4 ] = ( xy - wz ) * sy;
		te[ 5 ] = ( 1 - ( xx + zz ) ) * sy;
		te[ 6 ] = ( yz + wx ) * sy;
		te[ 7 ] = 0;

		te[ 8 ] = ( xz + wy ) * sz;
		te[ 9 ] = ( yz - wx ) * sz;
		te[ 10 ] = ( 1 - ( xx + yy ) ) * sz;
		te[ 11 ] = 0;

		te[ 12 ] = position.x;
		te[ 13 ] = position.y;
		te[ 14 ] = position.z;
		te[ 15 ] = 1;

		return this;

	}

	decompose( position, quaternion, scale ) {

		const te = this.elements;

		let sx = _v1$5.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();
		const sy = _v1$5.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();
		const sz = _v1$5.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();

		// if determine is negative, we need to invert one scale
		const det = this.determinant();
		if ( det < 0 ) sx = - sx;

		position.x = te[ 12 ];
		position.y = te[ 13 ];
		position.z = te[ 14 ];

		// scale the rotation part
		_m1$2.copy( this );

		const invSX = 1 / sx;
		const invSY = 1 / sy;
		const invSZ = 1 / sz;

		_m1$2.elements[ 0 ] *= invSX;
		_m1$2.elements[ 1 ] *= invSX;
		_m1$2.elements[ 2 ] *= invSX;

		_m1$2.elements[ 4 ] *= invSY;
		_m1$2.elements[ 5 ] *= invSY;
		_m1$2.elements[ 6 ] *= invSY;

		_m1$2.elements[ 8 ] *= invSZ;
		_m1$2.elements[ 9 ] *= invSZ;
		_m1$2.elements[ 10 ] *= invSZ;

		quaternion.setFromRotationMatrix( _m1$2 );

		scale.x = sx;
		scale.y = sy;
		scale.z = sz;

		return this;

	}

	makePerspective( left, right, top, bottom, near, far ) {

		if ( far === undefined ) {

			console.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' );

		}

		const te = this.elements;
		const x = 2 * near / ( right - left );
		const y = 2 * near / ( top - bottom );

		const a = ( right + left ) / ( right - left );
		const b = ( top + bottom ) / ( top - bottom );
		const c = - ( far + near ) / ( far - near );
		const d = - 2 * far * near / ( far - near );

		te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;
		te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;
		te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;
		te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;

		return this;

	}

	makeOrthographic( left, right, top, bottom, near, far ) {

		const te = this.elements;
		const w = 1.0 / ( right - left );
		const h = 1.0 / ( top - bottom );
		const p = 1.0 / ( far - near );

		const x = ( right + left ) * w;
		const y = ( top + bottom ) * h;
		const z = ( far + near ) * p;

		te[ 0 ] = 2 * w;	te[ 4 ] = 0;	te[ 8 ] = 0;	te[ 12 ] = - x;
		te[ 1 ] = 0;	te[ 5 ] = 2 * h;	te[ 9 ] = 0;	te[ 13 ] = - y;
		te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 * p;	te[ 14 ] = - z;
		te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;	te[ 15 ] = 1;

		return this;

	}

	equals( matrix ) {

		const te = this.elements;
		const me = matrix.elements;

		for ( let i = 0; i < 16; i ++ ) {

			if ( te[ i ] !== me[ i ] ) return false;

		}

		return true;

	}

	fromArray( array, offset = 0 ) {

		for ( let i = 0; i < 16; i ++ ) {

			this.elements[ i ] = array[ i + offset ];

		}

		return this;

	}

	toArray( array = [], offset = 0 ) {

		const te = this.elements;

		array[ offset ] = te[ 0 ];
		array[ offset + 1 ] = te[ 1 ];
		array[ offset + 2 ] = te[ 2 ];
		array[ offset + 3 ] = te[ 3 ];

		array[ offset + 4 ] = te[ 4 ];
		array[ offset + 5 ] = te[ 5 ];
		array[ offset + 6 ] = te[ 6 ];
		array[ offset + 7 ] = te[ 7 ];

		array[ offset + 8 ] = te[ 8 ];
		array[ offset + 9 ] = te[ 9 ];
		array[ offset + 10 ] = te[ 10 ];
		array[ offset + 11 ] = te[ 11 ];

		array[ offset + 12 ] = te[ 12 ];
		array[ offset + 13 ] = te[ 13 ];
		array[ offset + 14 ] = te[ 14 ];
		array[ offset + 15 ] = te[ 15 ];

		return array;

	}

}

Matrix4.prototype.isMatrix4 = true;

const _v1$5 = /*@__PURE__*/ new Vector3();
const _m1$2 = /*@__PURE__*/ new Matrix4();
const _zero = /*@__PURE__*/ new Vector3( 0, 0, 0 );
const _one = /*@__PURE__*/ new Vector3( 1, 1, 1 );
const _x = /*@__PURE__*/ new Vector3();
const _y = /*@__PURE__*/ new Vector3();
const _z = /*@__PURE__*/ new Vector3();

const _matrix$1 = /*@__PURE__*/ new Matrix4();
const _quaternion$3 = /*@__PURE__*/ new Quaternion();

class Euler {

	constructor( x = 0, y = 0, z = 0, order = Euler.DefaultOrder ) {

		this._x = x;
		this._y = y;
		this._z = z;
		this._order = order;

	}

	get x() {

		return this._x;

	}

	set x( value ) {

		this._x = value;
		this._onChangeCallback();

	}

	get y() {

		return this._y;

	}

	set y( value ) {

		this._y = value;
		this._onChangeCallback();

	}

	get z() {

		return this._z;

	}

	set z( value ) {

		this._z = value;
		this._onChangeCallback();

	}

	get order() {

		return this._order;

	}

	set order( value ) {

		this._order = value;
		this._onChangeCallback();

	}

	set( x, y, z, order = this._order ) {

		this._x = x;
		this._y = y;
		this._z = z;
		this._order = order;

		this._onChangeCallback();

		return this;

	}

	clone() {

		return new this.constructor( this._x, this._y, this._z, this._order );

	}

	copy( euler ) {

		this._x = euler._x;
		this._y = euler._y;
		this._z = euler._z;
		this._order = euler._order;

		this._onChangeCallback();

		return this;

	}

	setFromRotationMatrix( m, order = this._order, update = true ) {

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		const te = m.elements;
		const m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
		const m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
		const m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

		switch ( order ) {

			case 'XYZ':

				this._y = Math.asin( clamp( m13, - 1, 1 ) );

				if ( Math.abs( m13 ) < 0.9999999 ) {

					this._x = Math.atan2( - m23, m33 );
					this._z = Math.atan2( - m12, m11 );

				} else {

					this._x = Math.atan2( m32, m22 );
					this._z = 0;

				}

				break;

			case 'YXZ':

				this._x = Math.asin( - clamp( m23, - 1, 1 ) );

				if ( Math.abs( m23 ) < 0.9999999 ) {

					this._y = Math.atan2( m13, m33 );
					this._z = Math.atan2( m21, m22 );

				} else {

					this._y = Math.atan2( - m31, m11 );
					this._z = 0;

				}

				break;

			case 'ZXY':

				this._x = Math.asin( clamp( m32, - 1, 1 ) );

				if ( Math.abs( m32 ) < 0.9999999 ) {

					this._y = Math.atan2( - m31, m33 );
					this._z = Math.atan2( - m12, m22 );

				} else {

					this._y = 0;
					this._z = Math.atan2( m21, m11 );

				}

				break;

			case 'ZYX':

				this._y = Math.asin( - clamp( m31, - 1, 1 ) );

				if ( Math.abs( m31 ) < 0.9999999 ) {

					this._x = Math.atan2( m32, m33 );
					this._z = Math.atan2( m21, m11 );

				} else {

					this._x = 0;
					this._z = Math.atan2( - m12, m22 );

				}

				break;

			case 'YZX':

				this._z = Math.asin( clamp( m21, - 1, 1 ) );

				if ( Math.abs( m21 ) < 0.9999999 ) {

					this._x = Math.atan2( - m23, m22 );
					this._y = Math.atan2( - m31, m11 );

				} else {

					this._x = 0;
					this._y = Math.atan2( m13, m33 );

				}

				break;

			case 'XZY':

				this._z = Math.asin( - clamp( m12, - 1, 1 ) );

				if ( Math.abs( m12 ) < 0.9999999 ) {

					this._x = Math.atan2( m32, m22 );
					this._y = Math.atan2( m13, m11 );

				} else {

					this._x = Math.atan2( - m23, m33 );
					this._y = 0;

				}

				break;

			default:

				console.warn( 'THREE.Euler: .setFromRotationMatrix() encountered an unknown order: ' + order );

		}

		this._order = order;

		if ( update === true ) this._onChangeCallback();

		return this;

	}

	setFromQuaternion( q, order, update ) {

		_matrix$1.makeRotationFromQuaternion( q );

		return this.setFromRotationMatrix( _matrix$1, order, update );

	}

	setFromVector3( v, order = this._order ) {

		return this.set( v.x, v.y, v.z, order );

	}

	reorder( newOrder ) {

		// WARNING: this discards revolution information -bhouston

		_quaternion$3.setFromEuler( this );

		return this.setFromQuaternion( _quaternion$3, newOrder );

	}

	equals( euler ) {

		return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );

	}

	fromArray( array ) {

		this._x = array[ 0 ];
		this._y = array[ 1 ];
		this._z = array[ 2 ];
		if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];

		this._onChangeCallback();

		return this;

	}

	toArray( array = [], offset = 0 ) {

		array[ offset ] = this._x;
		array[ offset + 1 ] = this._y;
		array[ offset + 2 ] = this._z;
		array[ offset + 3 ] = this._order;

		return array;

	}

	toVector3( optionalResult ) {

		if ( optionalResult ) {

			return optionalResult.set( this._x, this._y, this._z );

		} else {

			return new Vector3( this._x, this._y, this._z );

		}

	}

	_onChange( callback ) {

		this._onChangeCallback = callback;

		return this;

	}

	_onChangeCallback() {}

}

Euler.prototype.isEuler = true;

Euler.DefaultOrder = 'XYZ';
Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];

class Layers {

	constructor() {

		this.mask = 1 | 0;

	}

	set( channel ) {

		this.mask = ( 1 << channel | 0 ) >>> 0;

	}

	enable( channel ) {

		this.mask |= 1 << channel | 0;

	}

	enableAll() {

		this.mask = 0xffffffff | 0;

	}

	toggle( channel ) {

		this.mask ^= 1 << channel | 0;

	}

	disable( channel ) {

		this.mask &= ~ ( 1 << channel | 0 );

	}

	disableAll() {

		this.mask = 0;

	}

	test( layers ) {

		return ( this.mask & layers.mask ) !== 0;

	}

	isEnabled( channel ) {

		return ( this.mask & ( 1 << channel | 0 ) ) !== 0;

	}

}

let _object3DId = 0;

const _v1$4 = /*@__PURE__*/ new Vector3();
const _q1 = /*@__PURE__*/ new Quaternion();
const _m1$1 = /*@__PURE__*/ new Matrix4();
const _target = /*@__PURE__*/ new Vector3();

const _position$3 = /*@__PURE__*/ new Vector3();
const _scale$2 = /*@__PURE__*/ new Vector3();
const _quaternion$2 = /*@__PURE__*/ new Quaternion();

const _xAxis = /*@__PURE__*/ new Vector3( 1, 0, 0 );
const _yAxis = /*@__PURE__*/ new Vector3( 0, 1, 0 );
const _zAxis = /*@__PURE__*/ new Vector3( 0, 0, 1 );

const _addedEvent = { type: 'added' };
const _removedEvent = { type: 'removed' };

class Object3D extends EventDispatcher {

	constructor() {

		super();

		Object.defineProperty( this, 'id', { value: _object3DId ++ } );

		this.uuid = generateUUID();

		this.name = '';
		this.type = 'Object3D';

		this.parent = null;
		this.children = [];

		this.up = Object3D.DefaultUp.clone();

		const position = new Vector3();
		const rotation = new Euler();
		const quaternion = new Quaternion();
		const scale = new Vector3( 1, 1, 1 );

		function onRotationChange() {

			quaternion.setFromEuler( rotation, false );

		}

		function onQuaternionChange() {

			rotation.setFromQuaternion( quaternion, undefined, false );

		}

		rotation._onChange( onRotationChange );
		quaternion._onChange( onQuaternionChange );

		Object.defineProperties( this, {
			position: {
				configurable: true,
				enumerable: true,
				value: position
			},
			rotation: {
				configurable: true,
				enumerable: true,
				value: rotation
			},
			quaternion: {
				configurable: true,
				enumerable: true,
				value: quaternion
			},
			scale: {
				configurable: true,
				enumerable: true,
				value: scale
			},
			modelViewMatrix: {
				value: new Matrix4()
			},
			normalMatrix: {
				value: new Matrix3()
			}
		} );

		this.matrix = new Matrix4();
		this.matrixWorld = new Matrix4();

		this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
		this.matrixWorldNeedsUpdate = false;

		this.layers = new Layers();
		this.visible = true;

		this.castShadow = false;
		this.receiveShadow = false;

		this.frustumCulled = true;
		this.renderOrder = 0;

		this.animations = [];

		this.userData = {};

	}

	onBeforeRender( /* renderer, scene, camera, geometry, material, group */ ) {}

	onAfterRender( /* renderer, scene, camera, geometry, material, group */ ) {}

	applyMatrix4( matrix ) {

		if ( this.matrixAutoUpdate ) this.updateMatrix();

		this.matrix.premultiply( matrix );

		this.matrix.decompose( this.position, this.quaternion, this.scale );

	}

	applyQuaternion( q ) {

		this.quaternion.premultiply( q );

		return this;

	}

	setRotationFromAxisAngle( axis, angle ) {

		// assumes axis is normalized

		this.quaternion.setFromAxisAngle( axis, angle );

	}

	setRotationFromEuler( euler ) {

		this.quaternion.setFromEuler( euler, true );

	}

	setRotationFromMatrix( m ) {

		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

		this.quaternion.setFromRotationMatrix( m );

	}

	setRotationFromQuaternion( q ) {

		// assumes q is normalized

		this.quaternion.copy( q );

	}

	rotateOnAxis( axis, angle ) {

		// rotate object on axis in object space
		// axis is assumed to be normalized

		_q1.setFromAxisAngle( axis, angle );

		this.quaternion.multiply( _q1 );

		return this;

	}

	rotateOnWorldAxis( axis, angle ) {

		// rotate object on axis in world space
		// axis is assumed to be normalized
		// method assumes no rotated parent

		_q1.setFromAxisAngle( axis, angle );

		this.quaternion.premultiply( _q1 );

		return this;

	}

	rotateX( angle ) {

		return this.rotateOnAxis( _xAxis, angle );

	}

	rotateY( angle ) {

		return this.rotateOnAxis( _yAxis, angle );

	}

	rotateZ( angle ) {

		return this.rotateOnAxis( _zAxis, angle );

	}

	translateOnAxis( axis, distance ) {

		// translate object by distance along axis in object space
		// axis is assumed to be normalized

		_v1$4.copy( axis ).applyQuaternion( this.quaternion );

		this.position.add( _v1$4.multiplyScalar( distance ) );

		return this;

	}

	translateX( distance ) {

		return this.translateOnAxis( _xAxis, distance );

	}

	translateY( distance ) {

		return this.translateOnAxis( _yAxis, distance );

	}

	translateZ( distance ) {

		return this.translateOnAxis( _zAxis, distance );

	}

	localToWorld( vector ) {

		return vector.applyMatrix4( this.matrixWorld );

	}

	worldToLocal( vector ) {

		return vector.applyMatrix4( _m1$1.copy( this.matrixWorld ).invert() );

	}

	lookAt( x, y, z ) {

		// This method does not support objects having non-uniformly-scaled parent(s)

		if ( x.isVector3 ) {

			_target.copy( x );

		} else {

			_target.set( x, y, z );

		}

		const parent = this.parent;

		this.updateWorldMatrix( true, false );

		_position$3.setFromMatrixPosition( this.matrixWorld );

		if ( this.isCamera || this.isLight ) {

			_m1$1.lookAt( _position$3, _target, this.up );

		} else {

			_m1$1.lookAt( _target, _position$3, this.up );

		}

		this.quaternion.setFromRotationMatrix( _m1$1 );

		if ( parent ) {

			_m1$1.extractRotation( parent.matrixWorld );
			_q1.setFromRotationMatrix( _m1$1 );
			this.quaternion.premultiply( _q1.invert() );

		}

	}

	add( object ) {

		if ( arguments.length > 1 ) {

			for ( let i = 0; i < arguments.length; i ++ ) {

				this.add( arguments[ i ] );

			}

			return this;

		}

		if ( object === this ) {

			console.error( 'THREE.Object3D.add: object can\'t be added as a child of itself.', object );
			return this;

		}

		if ( object && object.isObject3D ) {

			if ( object.parent !== null ) {

				object.parent.remove( object );

			}

			object.parent = this;
			this.children.push( object );

			object.dispatchEvent( _addedEvent );

		} else {

			console.error( 'THREE.Object3D.add: object not an instance of THREE.Object3D.', object );

		}

		return this;

	}

	remove( object ) {

		if ( arguments.length > 1 ) {

			for ( let i = 0; i < arguments.length; i ++ ) {

				this.remove( arguments[ i ] );

			}

			return this;

		}

		const index = this.children.indexOf( object );

		if ( index !== - 1 ) {

			object.parent = null;
			this.children.splice( index, 1 );

			object.dispatchEvent( _removedEvent );

		}

		return this;

	}

	removeFromParent() {

		const parent = this.parent;

		if ( parent !== null ) {

			parent.remove( this );

		}

		return this;

	}

	clear() {

		for ( let i = 0; i < this.children.length; i ++ ) {

			const object = this.children[ i ];

			object.parent = null;

			object.dispatchEvent( _removedEvent );

		}

		this.children.length = 0;

		return this;


	}

	attach( object ) {

		// adds object as a child of this, while maintaining the object's world transform

		// Note: This method does not support scene graphs having non-uniformly-scaled nodes(s)

		this.updateWorldMatrix( true, false );

		_m1$1.copy( this.matrixWorld ).invert();

		if ( object.parent !== null ) {

			object.parent.updateWorldMatrix( true, false );

			_m1$1.multiply( object.parent.matrixWorld );

		}

		object.applyMatrix4( _m1$1 );

		this.add( object );

		object.updateWorldMatrix( false, true );

		return this;

	}

	getObjectById( id ) {

		return this.getObjectByProperty( 'id', id );

	}

	getObjectByName( name ) {

		return this.getObjectByProperty( 'name', name );

	}

	getObjectByProperty( name, value ) {

		if ( this[ name ] === value ) return this;

		for ( let i = 0, l = this.children.length; i < l; i ++ ) {

			const child = this.children[ i ];
			const object = child.getObjectByProperty( name, value );

			if ( object !== undefined ) {

				return object;

			}

		}

		return undefined;

	}

	getWorldPosition( target ) {

		this.updateWorldMatrix( true, false );

		return target.setFromMatrixPosition( this.matrixWorld );

	}

	getWorldQuaternion( target ) {

		this.updateWorldMatrix( true, false );

		this.matrixWorld.decompose( _position$3, target, _scale$2 );

		return target;

	}

	getWorldScale( target ) {

		this.updateWorldMatrix( true, false );

		this.matrixWorld.decompose( _position$3, _quaternion$2, target );

		return target;

	}

	getWorldDirection( target ) {

		this.updateWorldMatrix( true, false );

		const e = this.matrixWorld.elements;

		return target.set( e[ 8 ], e[ 9 ], e[ 10 ] ).normalize();

	}

	raycast( /* raycaster, intersects */ ) {}

	traverse( callback ) {

		callback( this );

		const children = this.children;

		for ( let i = 0, l = children.length; i < l; i ++ ) {

			children[ i ].traverse( callback );

		}

	}

	traverseVisible( callback ) {

		if ( this.visible === false ) return;

		callback( this );

		const children = this.children;

		for ( let i = 0, l = children.length; i < l; i ++ ) {

			children[ i ].traverseVisible( callback );

		}

	}

	traverseAncestors( callback ) {

		const parent = this.parent;

		if ( parent !== null ) {

			callback( parent );

			parent.traverseAncestors( callback );

		}

	}

	updateMatrix() {

		this.matrix.compose( this.position, this.quaternion, this.scale );

		this.matrixWorldNeedsUpdate = true;

	}

	updateMatrixWorld( force ) {

		if ( this.matrixAutoUpdate ) this.updateMatrix();

		if ( this.matrixWorldNeedsUpdate || force ) {

			if ( this.parent === null ) {

				this.matrixWorld.copy( this.matrix );

			} else {

				this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );

			}

			this.matrixWorldNeedsUpdate = false;

			force = true;

		}

		// update children

		const children = this.children;

		for ( let i = 0, l = children.length; i < l; i ++ ) {

			children[ i ].updateMatrixWorld( force );

		}

	}

	updateWorldMatrix( updateParents, updateChildren ) {

		const parent = this.parent;

		if ( updateParents === true && parent !== null ) {

			parent.updateWorldMatrix( true, false );

		}

		if ( this.matrixAutoUpdate ) this.updateMatrix();

		if ( this.parent === null ) {

			this.matrixWorld.copy( this.matrix );

		} else {

			this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );

		}

		// update children

		if ( updateChildren === true ) {

			const children = this.children;

			for ( let i = 0, l = children.length; i < l; i ++ ) {

				children[ i ].updateWorldMatrix( false, true );

			}

		}

	}

	toJSON( meta ) {

		// meta is a string when called from JSON.stringify
		const isRootObject = ( meta === undefined || typeof meta === 'string' );

		const output = {};

		// meta is a hash used to collect geometries, materials.
		// not providing it implies that this is the root object
		// being serialized.
		if ( isRootObject ) {

			// initialize meta obj
			meta = {
				geometries: {},
				materials: {},
				textures: {},
				images: {},
				shapes: {},
				skeletons: {},
				animations: {}
			};

			output.metadata = {
				version: 4.5,
				type: 'Object',
				generator: 'Object3D.toJSON'
			};

		}

		// standard Object3D serialization

		const object = {};

		object.uuid = this.uuid;
		object.type = this.type;

		if ( this.name !== '' ) object.name = this.name;
		if ( this.castShadow === true ) object.castShadow = true;
		if ( this.receiveShadow === true ) object.receiveShadow = true;
		if ( this.visible === false ) object.visible = false;
		if ( this.frustumCulled === false ) object.frustumCulled = false;
		if ( this.renderOrder !== 0 ) object.renderOrder = this.renderOrder;
		if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;

		object.layers = this.layers.mask;
		object.matrix = this.matrix.toArray();

		if ( this.matrixAutoUpdate === false ) object.matrixAutoUpdate = false;

		// object specific properties

		if ( this.isInstancedMesh ) {

			object.type = 'InstancedMesh';
			object.count = this.count;
			object.instanceMatrix = this.instanceMatrix.toJSON();
			if ( this.instanceColor !== null ) object.instanceColor = this.instanceColor.toJSON();

		}

		//

		function serialize( library, element ) {

			if ( library[ element.uuid ] === undefined ) {

				library[ element.uuid ] = element.toJSON( meta );

			}

			return element.uuid;

		}

		if ( this.isScene ) {

			if ( this.background ) {

				if ( this.background.isColor ) {

					object.background = this.background.toJSON();

				} else if ( this.background.isTexture ) {

					object.background = this.background.toJSON( meta ).uuid;

				}

			}

			if ( this.environment && this.environment.isTexture ) {

				object.environment = this.environment.toJSON( meta ).uuid;

			}

		} else if ( this.isMesh || this.isLine || this.isPoints ) {

			object.geometry = serialize( meta.geometries, this.geometry );

			const parameters = this.geometry.parameters;

			if ( parameters !== undefined && parameters.shapes !== undefined ) {

				const shapes = parameters.shapes;

				if ( Array.isArray( shapes ) ) {

					for ( let i = 0, l = shapes.length; i < l; i ++ ) {

						const shape = shapes[ i ];

						serialize( meta.shapes, shape );

					}

				} else {

					serialize( meta.shapes, shapes );

				}

			}

		}

		if ( this.isSkinnedMesh ) {

			object.bindMode = this.bindMode;
			object.bindMatrix = this.bindMatrix.toArray();

			if ( this.skeleton !== undefined ) {

				serialize( meta.skeletons, this.skeleton );

				object.skeleton = this.skeleton.uuid;

			}

		}

		if ( this.material !== undefined ) {

			if ( Array.isArray( this.material ) ) {

				const uuids = [];

				for ( let i = 0, l = this.material.length; i < l; i ++ ) {

					uuids.push( serialize( meta.materials, this.material[ i ] ) );

				}

				object.material = uuids;

			} else {

				object.material = serialize( meta.materials, this.material );

			}

		}

		//

		if ( this.children.length > 0 ) {

			object.children = [];

			for ( let i = 0; i < this.children.length; i ++ ) {

				object.children.push( this.children[ i ].toJSON( meta ).object );

			}

		}

		//

		if ( this.animations.length > 0 ) {

			object.animations = [];

			for ( let i = 0; i < this.animations.length; i ++ ) {

				const animation = this.animations[ i ];

				object.animations.push( serialize( meta.animations, animation ) );

			}

		}

		if ( isRootObject ) {

			const geometries = extractFromCache( meta.geometries );
			const materials = extractFromCache( meta.materials );
			const textures = extractFromCache( meta.textures );
			const images = extractFromCache( meta.images );
			const shapes = extractFromCache( meta.shapes );
			const skeletons = extractFromCache( meta.skeletons );
			const animations = extractFromCache( meta.animations );

			if ( geometries.length > 0 ) output.geometries = geometries;
			if ( materials.length > 0 ) output.materials = materials;
			if ( textures.length > 0 ) output.textures = textures;
			if ( images.length > 0 ) output.images = images;
			if ( shapes.length > 0 ) output.shapes = shapes;
			if ( skeletons.length > 0 ) output.skeletons = skeletons;
			if ( animations.length > 0 ) output.animations = animations;

		}

		output.object = object;

		return output;

		// extract data from the cache hash
		// remove metadata on each item
		// and return as array
		function extractFromCache( cache ) {

			const values = [];
			for ( const key in cache ) {

				const data = cache[ key ];
				delete data.metadata;
				values.push( data );

			}

			return values;

		}

	}

	clone( recursive ) {

		return new this.constructor().copy( this, recursive );

	}

	copy( source, recursive = true ) {

		this.name = source.name;

		this.up.copy( source.up );

		this.position.copy( source.position );
		this.rotation.order = source.rotation.order;
		this.quaternion.copy( source.quaternion );
		this.scale.copy( source.scale );

		this.matrix.copy( source.matrix );
		this.matrixWorld.copy( source.matrixWorld );

		this.matrixAutoUpdate = source.matrixAutoUpdate;
		this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;

		this.layers.mask = source.layers.mask;
		this.visible = source.visible;

		this.castShadow = source.castShadow;
		this.receiveShadow = source.receiveShadow;

		this.frustumCulled = source.frustumCulled;
		this.renderOrder = source.renderOrder;

		this.userData = JSON.parse( JSON.stringify( source.userData ) );

		if ( recursive === true ) {

			for ( let i = 0; i < source.children.length; i ++ ) {

				const child = source.children[ i ];
				this.add( child.clone() );

			}

		}

		return this;

	}

}

Object3D.DefaultUp = new Vector3( 0, 1, 0 );
Object3D.DefaultMatrixAutoUpdate = true;

Object3D.prototype.isObject3D = true;

const _v0$1 = /*@__PURE__*/ new Vector3();
const _v1$3 = /*@__PURE__*/ new Vector3();
const _v2$2 = /*@__PURE__*/ new Vector3();
const _v3$1 = /*@__PURE__*/ new Vector3();

const _vab = /*@__PURE__*/ new Vector3();
const _vac = /*@__PURE__*/ new Vector3();
const _vbc = /*@__PURE__*/ new Vector3();
const _vap = /*@__PURE__*/ new Vector3();
const _vbp = /*@__PURE__*/ new Vector3();
const _vcp = /*@__PURE__*/ new Vector3();

class Triangle {

	constructor( a = new Vector3(), b = new Vector3(), c = new Vector3() ) {

		this.a = a;
		this.b = b;
		this.c = c;

	}

	static getNormal( a, b, c, target ) {

		target.subVectors( c, b );
		_v0$1.subVectors( a, b );
		target.cross( _v0$1 );

		const targetLengthSq = target.lengthSq();
		if ( targetLengthSq > 0 ) {

			return target.multiplyScalar( 1 / Math.sqrt( targetLengthSq ) );

		}

		return target.set( 0, 0, 0 );

	}

	// static/instance method to calculate barycentric coordinates
	// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
	static getBarycoord( point, a, b, c, target ) {

		_v0$1.subVectors( c, a );
		_v1$3.subVectors( b, a );
		_v2$2.subVectors( point, a );

		const dot00 = _v0$1.dot( _v0$1 );
		const dot01 = _v0$1.dot( _v1$3 );
		const dot02 = _v0$1.dot( _v2$2 );
		const dot11 = _v1$3.dot( _v1$3 );
		const dot12 = _v1$3.dot( _v2$2 );

		const denom = ( dot00 * dot11 - dot01 * dot01 );

		// collinear or singular triangle
		if ( denom === 0 ) {

			// arbitrary location outside of triangle?
			// not sure if this is the best idea, maybe should be returning undefined
			return target.set( - 2, - 1, - 1 );

		}

		const invDenom = 1 / denom;
		const u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;
		const v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;

		// barycentric coordinates must always sum to 1
		return target.set( 1 - u - v, v, u );

	}

	static containsPoint( point, a, b, c ) {

		this.getBarycoord( point, a, b, c, _v3$1 );

		return ( _v3$1.x >= 0 ) && ( _v3$1.y >= 0 ) && ( ( _v3$1.x + _v3$1.y ) <= 1 );

	}

	static getUV( point, p1, p2, p3, uv1, uv2, uv3, target ) {

		this.getBarycoord( point, p1, p2, p3, _v3$1 );

		target.set( 0, 0 );
		target.addScaledVector( uv1, _v3$1.x );
		target.addScaledVector( uv2, _v3$1.y );
		target.addScaledVector( uv3, _v3$1.z );

		return target;

	}

	static isFrontFacing( a, b, c, direction ) {

		_v0$1.subVectors( c, b );
		_v1$3.subVectors( a, b );

		// strictly front facing
		return ( _v0$1.cross( _v1$3 ).dot( direction ) < 0 ) ? true : false;

	}

	set( a, b, c ) {

		this.a.copy( a );
		this.b.copy( b );
		this.c.copy( c );

		return this;

	}

	setFromPointsAndIndices( points, i0, i1, i2 ) {

		this.a.copy( points[ i0 ] );
		this.b.copy( points[ i1 ] );
		this.c.copy( points[ i2 ] );

		return this;

	}

	setFromAttributeAndIndices( attribute, i0, i1, i2 ) {

		this.a.fromBufferAttribute( attribute, i0 );
		this.b.fromBufferAttribute( attribute, i1 );
		this.c.fromBufferAttribute( attribute, i2 );

		return this;

	}

	clone() {

		return new this.constructor().copy( this );

	}

	copy( triangle ) {

		this.a.copy( triangle.a );
		this.b.copy( triangle.b );
		this.c.copy( triangle.c );

		return this;

	}

	getArea() {

		_v0$1.subVectors( this.c, this.b );
		_v1$3.subVectors( this.a, this.b );

		return _v0$1.cross( _v1$3 ).length() * 0.5;

	}

	getMidpoint( target ) {

		return target.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );

	}

	getNormal( target ) {

		return Triangle.getNormal( this.a, this.b, this.c, target );

	}

	getPlane( target ) {

		return target.setFromCoplanarPoints( this.a, this.b, this.c );

	}

	getBarycoord( point, target ) {

		return Triangle.getBarycoord( point, this.a, this.b, this.c, target );

	}

	getUV( point, uv1, uv2, uv3, target ) {

		return Triangle.getUV( point, this.a, this.b, this.c, uv1, uv2, uv3, target );

	}

	containsPoint( point ) {

		return Triangle.containsPoint( point, this.a, this.b, this.c );

	}

	isFrontFacing( direction ) {

		return Triangle.isFrontFacing( this.a, this.b, this.c, direction );

	}

	intersectsBox( box ) {

		return box.intersectsTriangle( this );

	}

	closestPointToPoint( p, target ) {

		const a = this.a, b = this.b, c = this.c;
		let v, w;

		// algorithm thanks to Real-Time Collision Detection by Christer Ericson,
		// published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,
		// under the accompanying license; see chapter 5.1.5 for detailed explanation.
		// basically, we're distinguishing which of the voronoi regions of the triangle
		// the point lies in with the minimum amount of redundant computation.

		_vab.subVectors( b, a );
		_vac.subVectors( c, a );
		_vap.subVectors( p, a );
		const d1 = _vab.dot( _vap );
		const d2 = _vac.dot( _vap );
		if ( d1 <= 0 && d2 <= 0 ) {

			// vertex region of A; barycentric coords (1, 0, 0)
			return target.copy( a );

		}

		_vbp.subVectors( p, b );
		const d3 = _vab.dot( _vbp );
		const d4 = _vac.dot( _vbp );
		if ( d3 >= 0 && d4 <= d3 ) {

			// vertex region of B; barycentric coords (0, 1, 0)
			return target.copy( b );

		}

		const vc = d1 * d4 - d3 * d2;
		if ( vc <= 0 && d1 >= 0 && d3 <= 0 ) {

			v = d1 / ( d1 - d3 );
			// edge region of AB; barycentric coords (1-v, v, 0)
			return target.copy( a ).addScaledVector( _vab, v );

		}

		_vcp.subVectors( p, c );
		const d5 = _vab.dot( _vcp );
		const d6 = _vac.dot( _vcp );
		if ( d6 >= 0 && d5 <= d6 ) {

			// vertex region of C; barycentric coords (0, 0, 1)
			return target.copy( c );

		}

		const vb = d5 * d2 - d1 * d6;
		if ( vb <= 0 && d2 >= 0 && d6 <= 0 ) {

			w = d2 / ( d2 - d6 );
			// edge region of AC; barycentric coords (1-w, 0, w)
			return target.copy( a ).addScaledVector( _vac, w );

		}

		const va = d3 * d6 - d5 * d4;
		if ( va <= 0 && ( d4 - d3 ) >= 0 && ( d5 - d6 ) >= 0 ) {

			_vbc.subVectors( c, b );
			w = ( d4 - d3 ) / ( ( d4 - d3 ) + ( d5 - d6 ) );
			// edge region of BC; barycentric coords (0, 1-w, w)
			return target.copy( b ).addScaledVector( _vbc, w ); // edge region of BC

		}

		// face region
		const denom = 1 / ( va + vb + vc );
		// u = va * denom
		v = vb * denom;
		w = vc * denom;

		return target.copy( a ).addScaledVector( _vab, v ).addScaledVector( _vac, w );

	}

	equals( triangle ) {

		return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );

	}

}

let materialId = 0;

class Material extends EventDispatcher {

	constructor() {

		super();

		Object.defineProperty( this, 'id', { value: materialId ++ } );

		this.uuid = generateUUID();

		this.name = '';
		this.type = 'Material';

		this.fog = true;

		this.blending = NormalBlending;
		this.side = FrontSide;
		this.vertexColors = false;

		this.opacity = 1;
		this.transparent = false;

		this.blendSrc = SrcAlphaFactor;
		this.blendDst = OneMinusSrcAlphaFactor;
		this.blendEquation = AddEquation;
		this.blendSrcAlpha = null;
		this.blendDstAlpha = null;
		this.blendEquationAlpha = null;

		this.depthFunc = LessEqualDepth;
		this.depthTest = true;
		this.depthWrite = true;

		this.stencilWriteMask = 0xff;
		this.stencilFunc = AlwaysStencilFunc;
		this.stencilRef = 0;
		this.stencilFuncMask = 0xff;
		this.stencilFail = KeepStencilOp;
		this.stencilZFail = KeepStencilOp;
		this.stencilZPass = KeepStencilOp;
		this.stencilWrite = false;

		this.clippingPlanes = null;
		this.clipIntersection = false;
		this.clipShadows = false;

		this.shadowSide = null;

		this.colorWrite = true;

		this.precision = null; // override the renderer's default precision for this material

		this.polygonOffset = false;
		this.polygonOffsetFactor = 0;
		this.polygonOffsetUnits = 0;

		this.dithering = false;

		this.alphaToCoverage = false;
		this.premultipliedAlpha = false;

		this.visible = true;

		this.toneMapped = true;

		this.userData = {};

		this.version = 0;

		this._alphaTest = 0;

	}

	get alphaTest() {

		return this._alphaTest;

	}

	set alphaTest( value ) {

		if ( this._alphaTest > 0 !== value > 0 ) {

			this.version ++;

		}

		this._alphaTest = value;

	}

	onBuild( /* shaderobject, renderer */ ) {}

	onBeforeRender( /* renderer, scene, camera, geometry, object, group */ ) {}

	onBeforeCompile( /* shaderobject, renderer */ ) {}

	customProgramCacheKey() {

		return this.onBeforeCompile.toString();

	}

	setValues( values ) {

		if ( values === undefined ) return;

		for ( const key in values ) {

			const newValue = values[ key ];

			if ( newValue === undefined ) {

				console.warn( 'THREE.Material: \'' + key + '\' parameter is undefined.' );
				continue;

			}

			// for backward compatability if shading is set in the constructor
			if ( key === 'shading' ) {

				console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
				this.flatShading = ( newValue === FlatShading ) ? true : false;
				continue;

			}

			const currentValue = this[ key ];

			if ( currentValue === undefined ) {

				console.warn( 'THREE.' + this.type + ': \'' + key + '\' is not a property of this material.' );
				continue;

			}

			if ( currentValue && currentValue.isColor ) {

				currentValue.set( newValue );

			} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {

				currentValue.copy( newValue );

			} else {

				this[ key ] = newValue;

			}

		}

	}

	toJSON( meta ) {

		const isRoot = ( meta === undefined || typeof meta === 'string' );

		if ( isRoot ) {

			meta = {
				textures: {},
				images: {}
			};

		}

		const data = {
			metadata: {
				version: 4.5,
				type: 'Material',
				generator: 'Material.toJSON'
			}
		};

		// standard Material serialization
		data.uuid = this.uuid;
		data.type = this.type;

		if ( this.name !== '' ) data.name = this.name;

		if ( this.color && this.color.isColor ) data.color = this.color.getHex();

		if ( this.roughness !== undefined ) data.roughness = this.roughness;
		if ( this.metalness !== undefined ) data.metalness = this.metalness;

		if ( this.sheen !== undefined ) data.sheen = this.sheen;
		if ( this.sheenColor && this.sheenColor.isColor ) data.sheenColor = this.sheenColor.getHex();
		if ( this.sheenRoughness !== undefined ) data.sheenRoughness = this.sheenRoughness;
		if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();
		if ( this.emissiveIntensity && this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;

		if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();
		if ( this.specularIntensity !== undefined ) data.specularIntensity = this.specularIntensity;
		if ( this.specularColor && this.specularColor.isColor ) data.specularColor = this.specularColor.getHex();
		if ( this.shininess !== undefined ) data.shininess = this.shininess;
		if ( this.clearcoat !== undefined ) data.clearcoat = this.clearcoat;
		if ( this.clearcoatRoughness !== undefined ) data.clearcoatRoughness = this.clearcoatRoughness;

		if ( this.clearcoatMap && this.clearcoatMap.isTexture ) {

			data.clearcoatMap = this.clearcoatMap.toJSON( meta ).uuid;

		}

		if ( this.clearcoatRoughnessMap && this.clearcoatRoughnessMap.isTexture ) {

			data.clearcoatRoughnessMap = this.clearcoatRoughnessMap.toJSON( meta ).uuid;

		}

		if ( this.clearcoatNormalMap && this.clearcoatNormalMap.isTexture ) {

			data.clearcoatNormalMap = this.clearcoatNormalMap.toJSON( meta ).uuid;
			data.clearcoatNormalScale = this.clearcoatNormalScale.toArray();

		}

		if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;
		if ( this.matcap && this.matcap.isTexture ) data.matcap = this.matcap.toJSON( meta ).uuid;
		if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;

		if ( this.lightMap && this.lightMap.isTexture ) {

			data.lightMap = this.lightMap.toJSON( meta ).uuid;
			data.lightMapIntensity = this.lightMapIntensity;

		}

		if ( this.aoMap && this.aoMap.isTexture ) {

			data.aoMap = this.aoMap.toJSON( meta ).uuid;
			data.aoMapIntensity = this.aoMapIntensity;

		}

		if ( this.bumpMap && this.bumpMap.isTexture ) {

			data.bumpMap = this.bumpMap.toJSON( meta ).uuid;
			data.bumpScale = this.bumpScale;

		}

		if ( this.normalMap && this.normalMap.isTexture ) {

			data.normalMap = this.normalMap.toJSON( meta ).uuid;
			data.normalMapType = this.normalMapType;
			data.normalScale = this.normalScale.toArray();

		}

		if ( this.displacementMap && this.displacementMap.isTexture ) {

			data.displacementMap = this.displacementMap.toJSON( meta ).uuid;
			data.displacementScale = this.displacementScale;
			data.displacementBias = this.displacementBias;

		}

		if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;
		if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;

		if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;
		if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;
		if ( this.specularIntensityMap && this.specularIntensityMap.isTexture ) data.specularIntensityMap = this.specularIntensityMap.toJSON( meta ).uuid;
		if ( this.specularColorMap && this.specularColorMap.isTexture ) data.specularColorMap = this.specularColorMap.toJSON( meta ).uuid;

		if ( this.envMap && this.envMap.isTexture ) {

			data.envMap = this.envMap.toJSON( meta ).uuid;

			if ( this.combine !== undefined ) data.combine = this.combine;

		}

		if ( this.envMapIntensity !== undefined ) data.envMapIntensity = this.envMapIntensity;
		if ( this.reflectivity !== undefined ) data.reflectivity = this.reflectivity;
		if ( this.refractionRatio !== undefined ) data.refractionRatio = this.refractionRatio;

		if ( this.gradientMap && this.gradientMap.isTexture ) {

			data.gradientMap = this.gradientMap.toJSON( meta ).uuid;

		}

		if ( this.transmission !== undefined ) data.transmission = this.transmission;
		if ( this.transmissionMap && this.transmissionMap.isTexture ) data.transmissionMap = this.transmissionMap.toJSON( meta ).uuid;
		if ( this.thickness !== undefined ) data.thickness = this.thickness;
		if ( this.thicknessMap && this.thicknessMap.isTexture ) data.thicknessMap = this.thicknessMap.toJSON( meta ).uuid;
		if ( this.attenuationDistance !== undefined ) data.attenuationDistance = this.attenuationDistance;
		if ( this.attenuationColor !== undefined ) data.attenuationColor = this.attenuationColor.getHex();

		if ( this.size !== undefined ) data.size = this.size;
		if ( this.shadowSide !== null ) data.shadowSide = this.shadowSide;
		if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;

		if ( this.blending !== NormalBlending ) data.blending = this.blending;
		if ( this.side !== FrontSide ) data.side = this.side;
		if ( this.vertexColors ) data.vertexColors = true;

		if ( this.opacity < 1 ) data.opacity = this.opacity;
		if ( this.transparent === true ) data.transparent = this.transparent;

		data.depthFunc = this.depthFunc;
		data.depthTest = this.depthTest;
		data.depthWrite = this.depthWrite;
		data.colorWrite = this.colorWrite;

		data.stencilWrite = this.stencilWrite;
		data.stencilWriteMask = this.stencilWriteMask;
		data.stencilFunc = this.stencilFunc;
		data.stencilRef = this.stencilRef;
		data.stencilFuncMask = this.stencilFuncMask;
		data.stencilFail = this.stencilFail;
		data.stencilZFail = this.stencilZFail;
		data.stencilZPass = this.stencilZPass;

		// rotation (SpriteMaterial)
		if ( this.rotation && this.rotation !== 0 ) data.rotation = this.rotation;

		if ( this.polygonOffset === true ) data.polygonOffset = true;
		if ( this.polygonOffsetFactor !== 0 ) data.polygonOffsetFactor = this.polygonOffsetFactor;
		if ( this.polygonOffsetUnits !== 0 ) data.polygonOffsetUnits = this.polygonOffsetUnits;

		if ( this.linewidth && this.linewidth !== 1 ) data.linewidth = this.linewidth;
		if ( this.dashSize !== undefined ) data.dashSize = this.dashSize;
		if ( this.gapSize !== undefined ) data.gapSize = this.gapSize;
		if ( this.scale !== undefined ) data.scale = this.scale;

		if ( this.dithering === true ) data.dithering = true;

		if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;
		if ( this.alphaToCoverage === true ) data.alphaToCoverage = this.alphaToCoverage;
		if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;

		if ( this.wireframe === true ) data.wireframe = this.wireframe;
		if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;
		if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;
		if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;

		if ( this.flatShading === true ) data.flatShading = this.flatShading;

		if ( this.visible === false ) data.visible = false;

		if ( this.toneMapped === false ) data.toneMapped = false;

		if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;

		// TODO: Copied from Object3D.toJSON

		function extractFromCache( cache ) {

			const values = [];

			for ( const key in cache ) {

				const data = cache[ key ];
				delete data.metadata;
				values.push( data );

			}

			return values;

		}

		if ( isRoot ) {

			const textures = extractFromCache( meta.textures );
			const images = extractFromCache( meta.images );

			if ( textures.length > 0 ) data.textures = textures;
			if ( images.length > 0 ) data.images = images;

		}

		return data;

	}

	clone() {

		return new this.constructor().copy( this );

	}

	copy( source ) {

		this.name = source.name;

		this.fog = source.fog;

		this.blending = source.blending;
		this.side = source.side;
		this.vertexColors = source.vertexColors;

		this.opacity = source.opacity;
		this.transparent = source.transparent;

		this.blendSrc = source.blendSrc;
		this.blendDst = source.blendDst;
		this.blendEquation = source.blendEquation;
		this.blendSrcAlpha = source.blendSrcAlpha;
		this.blendDstAlpha = source.blendDstAlpha;
		this.blendEquationAlpha = source.blendEquationAlpha;

		this.depthFunc = source.depthFunc;
		this.depthTest = source.depthTest;
		this.depthWrite = source.depthWrite;

		this.stencilWriteMask = source.stencilWriteMask;
		this.stencilFunc = source.stencilFunc;
		this.stencilRef = source.stencilRef;
		this.stencilFuncMask = source.stencilFuncMask;
		this.stencilFail = source.stencilFail;
		this.stencilZFail = source.stencilZFail;
		this.stencilZPass = source.stencilZPass;
		this.stencilWrite = source.stencilWrite;

		const srcPlanes = source.clippingPlanes;
		let dstPlanes = null;

		if ( srcPlanes !== null ) {

			const n = srcPlanes.length;
			dstPlanes = new Array( n );

			for ( let i = 0; i !== n; ++ i ) {

				dstPlanes[ i ] = srcPlanes[ i ].clone();

			}

		}

		this.clippingPlanes = dstPlanes;
		this.clipIntersection = source.clipIntersection;
		this.clipShadows = source.clipShadows;

		this.shadowSide = source.shadowSide;

		this.colorWrite = source.colorWrite;

		this.precision = source.precision;

		this.polygonOffset = source.polygonOffset;
		this.polygonOffsetFactor = source.polygonOffsetFactor;
		this.polygonOffsetUnits = source.polygonOffsetUnits;

		this.dithering = source.dithering;

		this.alphaTest = source.alphaTest;
		this.alphaToCoverage = source.alphaToCoverage;
		this.premultipliedAlpha = source.premultipliedAlpha;

		this.visible = source.visible;

		this.toneMapped = source.toneMapped;

		this.userData = JSON.parse( JSON.stringify( source.userData ) );

		return this;

	}

	dispose() {

		this.dispatchEvent( { type: 'dispose' } );

	}

	set needsUpdate( value ) {

		if ( value === true ) this.version ++;

	}

}

Material.prototype.isMaterial = true;

/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  specularMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *  combine: THREE.Multiply,
 *  reflectivity: <float>,
 *  refractionRatio: <float>,
 *
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 * }
 */

class MeshBasicMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'MeshBasicMaterial';

		this.color = new Color( 0xffffff ); // emissive

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.specularMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.color.copy( source.color );

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.specularMap = source.specularMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		return this;

	}

}

MeshBasicMaterial.prototype.isMeshBasicMaterial = true;

const _vector$9 = /*@__PURE__*/ new Vector3();
const _vector2$1 = /*@__PURE__*/ new Vector2();

class BufferAttribute {

	constructor( array, itemSize, normalized ) {

		if ( Array.isArray( array ) ) {

			throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );

		}

		this.name = '';

		this.array = array;
		this.itemSize = itemSize;
		this.count = array !== undefined ? array.length / itemSize : 0;
		this.normalized = normalized === true;

		this.usage = StaticDrawUsage;
		this.updateRange = { offset: 0, count: - 1 };

		this.version = 0;

	}

	onUploadCallback() {}

	set needsUpdate( value ) {

		if ( value === true ) this.version ++;

	}

	setUsage( value ) {

		this.usage = value;

		return this;

	}

	copy( source ) {

		this.name = source.name;
		this.array = new source.array.constructor( source.array );
		this.itemSize = source.itemSize;
		this.count = source.count;
		this.normalized = source.normalized;

		this.usage = source.usage;

		return this;

	}

	copyAt( index1, attribute, index2 ) {

		index1 *= this.itemSize;
		index2 *= attribute.itemSize;

		for ( let i = 0, l = this.itemSize; i < l; i ++ ) {

			this.array[ index1 + i ] = attribute.array[ index2 + i ];

		}

		return this;

	}

	copyArray( array ) {

		this.array.set( array );

		return this;

	}

	copyColorsArray( colors ) {

		const array = this.array;
		let offset = 0;

		for ( let i = 0, l = colors.length; i < l; i ++ ) {

			let color = colors[ i ];

			if ( color === undefined ) {

				console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );
				color = new Color();

			}

			array[ offset ++ ] = color.r;
			array[ offset ++ ] = color.g;
			array[ offset ++ ] = color.b;

		}

		return this;

	}

	copyVector2sArray( vectors ) {

		const array = this.array;
		let offset = 0;

		for ( let i = 0, l = vectors.length; i < l; i ++ ) {

			let vector = vectors[ i ];

			if ( vector === undefined ) {

				console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );
				vector = new Vector2();

			}

			array[ offset ++ ] = vector.x;
			array[ offset ++ ] = vector.y;

		}

		return this;

	}

	copyVector3sArray( vectors ) {

		const array = this.array;
		let offset = 0;

		for ( let i = 0, l = vectors.length; i < l; i ++ ) {

			let vector = vectors[ i ];

			if ( vector === undefined ) {

				console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );
				vector = new Vector3();

			}

			array[ offset ++ ] = vector.x;
			array[ offset ++ ] = vector.y;
			array[ offset ++ ] = vector.z;

		}

		return this;

	}

	copyVector4sArray( vectors ) {

		const array = this.array;
		let offset = 0;

		for ( let i = 0, l = vectors.length; i < l; i ++ ) {

			let vector = vectors[ i ];

			if ( vector === undefined ) {

				console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );
				vector = new Vector4();

			}

			array[ offset ++ ] = vector.x;
			array[ offset ++ ] = vector.y;
			array[ offset ++ ] = vector.z;
			array[ offset ++ ] = vector.w;

		}

		return this;

	}

	applyMatrix3( m ) {

		if ( this.itemSize === 2 ) {

			for ( let i = 0, l = this.count; i < l; i ++ ) {

				_vector2$1.fromBufferAttribute( this, i );
				_vector2$1.applyMatrix3( m );

				this.setXY( i, _vector2$1.x, _vector2$1.y );

			}

		} else if ( this.itemSize === 3 ) {

			for ( let i = 0, l = this.count; i < l; i ++ ) {

				_vector$9.fromBufferAttribute( this, i );
				_vector$9.applyMatrix3( m );

				this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z );

			}

		}

		return this;

	}

	applyMatrix4( m ) {

		for ( let i = 0, l = this.count; i < l; i ++ ) {

			_vector$9.x = this.getX( i );
			_vector$9.y = this.getY( i );
			_vector$9.z = this.getZ( i );

			_vector$9.applyMatrix4( m );

			this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z );

		}

		return this;

	}

	applyNormalMatrix( m ) {

		for ( let i = 0, l = this.count; i < l; i ++ ) {

			_vector$9.x = this.getX( i );
			_vector$9.y = this.getY( i );
			_vector$9.z = this.getZ( i );

			_vector$9.applyNormalMatrix( m );

			this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z );

		}

		return this;

	}

	transformDirection( m ) {

		for ( let i = 0, l = this.count; i < l; i ++ ) {

			_vector$9.x = this.getX( i );
			_vector$9.y = this.getY( i );
			_vector$9.z = this.getZ( i );

			_vector$9.transformDirection( m );

			this.setXYZ( i, _vector$9.x, _vector$9.y, _vector$9.z );

		}

		return this;

	}

	set( value, offset = 0 ) {

		this.array.set( value, offset );

		return this;

	}

	getX( index ) {

		return this.array[ index * this.itemSize ];

	}

	setX( index, x ) {

		this.array[ index * this.itemSize ] = x;

		return this;

	}

	getY( index ) {

		return this.array[ index * this.itemSize + 1 ];

	}

	setY( index, y ) {

		this.array[ index * this.itemSize + 1 ] = y;

		return this;

	}

	getZ( index ) {

		return this.array[ index * this.itemSize + 2 ];

	}

	setZ( index, z ) {

		this.array[ index * this.itemSize + 2 ] = z;

		return this;

	}

	getW( index ) {

		return this.array[ index * this.itemSize + 3 ];

	}

	setW( index, w ) {

		this.array[ index * this.itemSize + 3 ] = w;

		return this;

	}

	setXY( index, x, y ) {

		index *= this.itemSize;

		this.array[ index + 0 ] = x;
		this.array[ index + 1 ] = y;

		return this;

	}

	setXYZ( index, x, y, z ) {

		index *= this.itemSize;

		this.array[ index + 0 ] = x;
		this.array[ index + 1 ] = y;
		this.array[ index + 2 ] = z;

		return this;

	}

	setXYZW( index, x, y, z, w ) {

		index *= this.itemSize;

		this.array[ index + 0 ] = x;
		this.array[ index + 1 ] = y;
		this.array[ index + 2 ] = z;
		this.array[ index + 3 ] = w;

		return this;

	}

	onUpload( callback ) {

		this.onUploadCallback = callback;

		return this;

	}

	clone() {

		return new this.constructor( this.array, this.itemSize ).copy( this );

	}

	toJSON() {

		const data = {
			itemSize: this.itemSize,
			type: this.array.constructor.name,
			array: Array.prototype.slice.call( this.array ),
			normalized: this.normalized
		};

		if ( this.name !== '' ) data.name = this.name;
		if ( this.usage !== StaticDrawUsage ) data.usage = this.usage;
		if ( this.updateRange.offset !== 0 || this.updateRange.count !== - 1 ) data.updateRange = this.updateRange;

		return data;

	}

}

BufferAttribute.prototype.isBufferAttribute = true;

//

class Int8BufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Int8Array( array ), itemSize, normalized );

	}

}

class Uint8BufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Uint8Array( array ), itemSize, normalized );

	}

}

class Uint8ClampedBufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Uint8ClampedArray( array ), itemSize, normalized );

	}

}

class Int16BufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Int16Array( array ), itemSize, normalized );

	}

}

class Uint16BufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Uint16Array( array ), itemSize, normalized );

	}

}

class Int32BufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Int32Array( array ), itemSize, normalized );

	}

}

class Uint32BufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Uint32Array( array ), itemSize, normalized );

	}

}

class Float16BufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Uint16Array( array ), itemSize, normalized );

	}

}

Float16BufferAttribute.prototype.isFloat16BufferAttribute = true;

class Float32BufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Float32Array( array ), itemSize, normalized );

	}

}

class Float64BufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized ) {

		super( new Float64Array( array ), itemSize, normalized );

	}

}

let _id$1 = 0;

const _m1 = /*@__PURE__*/ new Matrix4();
const _obj = /*@__PURE__*/ new Object3D();
const _offset = /*@__PURE__*/ new Vector3();
const _box$1 = /*@__PURE__*/ new Box3();
const _boxMorphTargets = /*@__PURE__*/ new Box3();
const _vector$8 = /*@__PURE__*/ new Vector3();

class BufferGeometry extends EventDispatcher {

	constructor() {

		super();

		Object.defineProperty( this, 'id', { value: _id$1 ++ } );

		this.uuid = generateUUID();

		this.name = '';
		this.type = 'BufferGeometry';

		this.index = null;
		this.attributes = {};

		this.morphAttributes = {};
		this.morphTargetsRelative = false;

		this.groups = [];

		this.boundingBox = null;
		this.boundingSphere = null;

		this.drawRange = { start: 0, count: Infinity };

		this.userData = {};

	}

	getIndex() {

		return this.index;

	}

	setIndex( index ) {

		if ( Array.isArray( index ) ) {

			this.index = new ( arrayNeedsUint32( index ) ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );

		} else {

			this.index = index;

		}

		return this;

	}

	getAttribute( name ) {

		return this.attributes[ name ];

	}

	setAttribute( name, attribute ) {

		this.attributes[ name ] = attribute;

		return this;

	}

	deleteAttribute( name ) {

		delete this.attributes[ name ];

		return this;

	}

	hasAttribute( name ) {

		return this.attributes[ name ] !== undefined;

	}

	addGroup( start, count, materialIndex = 0 ) {

		this.groups.push( {

			start: start,
			count: count,
			materialIndex: materialIndex

		} );

	}

	clearGroups() {

		this.groups = [];

	}

	setDrawRange( start, count ) {

		this.drawRange.start = start;
		this.drawRange.count = count;

	}

	applyMatrix4( matrix ) {

		const position = this.attributes.position;

		if ( position !== undefined ) {

			position.applyMatrix4( matrix );

			position.needsUpdate = true;

		}

		const normal = this.attributes.normal;

		if ( normal !== undefined ) {

			const normalMatrix = new Matrix3().getNormalMatrix( matrix );

			normal.applyNormalMatrix( normalMatrix );

			normal.needsUpdate = true;

		}

		const tangent = this.attributes.tangent;

		if ( tangent !== undefined ) {

			tangent.transformDirection( matrix );

			tangent.needsUpdate = true;

		}

		if ( this.boundingBox !== null ) {

			this.computeBoundingBox();

		}

		if ( this.boundingSphere !== null ) {

			this.computeBoundingSphere();

		}

		return this;

	}

	applyQuaternion( q ) {

		_m1.makeRotationFromQuaternion( q );

		this.applyMatrix4( _m1 );

		return this;

	}

	rotateX( angle ) {

		// rotate geometry around world x-axis

		_m1.makeRotationX( angle );

		this.applyMatrix4( _m1 );

		return this;

	}

	rotateY( angle ) {

		// rotate geometry around world y-axis

		_m1.makeRotationY( angle );

		this.applyMatrix4( _m1 );

		return this;

	}

	rotateZ( angle ) {

		// rotate geometry around world z-axis

		_m1.makeRotationZ( angle );

		this.applyMatrix4( _m1 );

		return this;

	}

	translate( x, y, z ) {

		// translate geometry

		_m1.makeTranslation( x, y, z );

		this.applyMatrix4( _m1 );

		return this;

	}

	scale( x, y, z ) {

		// scale geometry

		_m1.makeScale( x, y, z );

		this.applyMatrix4( _m1 );

		return this;

	}

	lookAt( vector ) {

		_obj.lookAt( vector );

		_obj.updateMatrix();

		this.applyMatrix4( _obj.matrix );

		return this;

	}

	center() {

		this.computeBoundingBox();

		this.boundingBox.getCenter( _offset ).negate();

		this.translate( _offset.x, _offset.y, _offset.z );

		return this;

	}

	setFromPoints( points ) {

		const position = [];

		for ( let i = 0, l = points.length; i < l; i ++ ) {

			const point = points[ i ];
			position.push( point.x, point.y, point.z || 0 );

		}

		this.setAttribute( 'position', new Float32BufferAttribute( position, 3 ) );

		return this;

	}

	computeBoundingBox() {

		if ( this.boundingBox === null ) {

			this.boundingBox = new Box3();

		}

		const position = this.attributes.position;
		const morphAttributesPosition = this.morphAttributes.position;

		if ( position && position.isGLBufferAttribute ) {

			console.error( 'THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".', this );

			this.boundingBox.set(
				new Vector3( - Infinity, - Infinity, - Infinity ),
				new Vector3( + Infinity, + Infinity, + Infinity )
			);

			return;

		}

		if ( position !== undefined ) {

			this.boundingBox.setFromBufferAttribute( position );

			// process morph attributes if present

			if ( morphAttributesPosition ) {

				for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {

					const morphAttribute = morphAttributesPosition[ i ];
					_box$1.setFromBufferAttribute( morphAttribute );

					if ( this.morphTargetsRelative ) {

						_vector$8.addVectors( this.boundingBox.min, _box$1.min );
						this.boundingBox.expandByPoint( _vector$8 );

						_vector$8.addVectors( this.boundingBox.max, _box$1.max );
						this.boundingBox.expandByPoint( _vector$8 );

					} else {

						this.boundingBox.expandByPoint( _box$1.min );
						this.boundingBox.expandByPoint( _box$1.max );

					}

				}

			}

		} else {

			this.boundingBox.makeEmpty();

		}

		if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {

			console.error( 'THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this );

		}

	}

	computeBoundingSphere() {

		if ( this.boundingSphere === null ) {

			this.boundingSphere = new Sphere();

		}

		const position = this.attributes.position;
		const morphAttributesPosition = this.morphAttributes.position;

		if ( position && position.isGLBufferAttribute ) {

			console.error( 'THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".', this );

			this.boundingSphere.set( new Vector3(), Infinity );

			return;

		}

		if ( position ) {

			// first, find the center of the bounding sphere

			const center = this.boundingSphere.center;

			_box$1.setFromBufferAttribute( position );

			// process morph attributes if present

			if ( morphAttributesPosition ) {

				for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {

					const morphAttribute = morphAttributesPosition[ i ];
					_boxMorphTargets.setFromBufferAttribute( morphAttribute );

					if ( this.morphTargetsRelative ) {

						_vector$8.addVectors( _box$1.min, _boxMorphTargets.min );
						_box$1.expandByPoint( _vector$8 );

						_vector$8.addVectors( _box$1.max, _boxMorphTargets.max );
						_box$1.expandByPoint( _vector$8 );

					} else {

						_box$1.expandByPoint( _boxMorphTargets.min );
						_box$1.expandByPoint( _boxMorphTargets.max );

					}

				}

			}

			_box$1.getCenter( center );

			// second, try to find a boundingSphere with a radius smaller than the
			// boundingSphere of the boundingBox: sqrt(3) smaller in the best case

			let maxRadiusSq = 0;

			for ( let i = 0, il = position.count; i < il; i ++ ) {

				_vector$8.fromBufferAttribute( position, i );

				maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( _vector$8 ) );

			}

			// process morph attributes if present

			if ( morphAttributesPosition ) {

				for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {

					const morphAttribute = morphAttributesPosition[ i ];
					const morphTargetsRelative = this.morphTargetsRelative;

					for ( let j = 0, jl = morphAttribute.count; j < jl; j ++ ) {

						_vector$8.fromBufferAttribute( morphAttribute, j );

						if ( morphTargetsRelative ) {

							_offset.fromBufferAttribute( position, j );
							_vector$8.add( _offset );

						}

						maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( _vector$8 ) );

					}

				}

			}

			this.boundingSphere.radius = Math.sqrt( maxRadiusSq );

			if ( isNaN( this.boundingSphere.radius ) ) {

				console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this );

			}

		}

	}

	computeTangents() {

		const index = this.index;
		const attributes = this.attributes;

		// based on http://www.terathon.com/code/tangent.html
		// (per vertex tangents)

		if ( index === null ||
			 attributes.position === undefined ||
			 attributes.normal === undefined ||
			 attributes.uv === undefined ) {

			console.error( 'THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)' );
			return;

		}

		const indices = index.array;
		const positions = attributes.position.array;
		const normals = attributes.normal.array;
		const uvs = attributes.uv.array;

		const nVertices = positions.length / 3;

		if ( attributes.tangent === undefined ) {

			this.setAttribute( 'tangent', new BufferAttribute( new Float32Array( 4 * nVertices ), 4 ) );

		}

		const tangents = attributes.tangent.array;

		const tan1 = [], tan2 = [];

		for ( let i = 0; i < nVertices; i ++ ) {

			tan1[ i ] = new Vector3();
			tan2[ i ] = new Vector3();

		}

		const vA = new Vector3(),
			vB = new Vector3(),
			vC = new Vector3(),

			uvA = new Vector2(),
			uvB = new Vector2(),
			uvC = new Vector2(),

			sdir = new Vector3(),
			tdir = new Vector3();

		function handleTriangle( a, b, c ) {

			vA.fromArray( positions, a * 3 );
			vB.fromArray( positions, b * 3 );
			vC.fromArray( positions, c * 3 );

			uvA.fromArray( uvs, a * 2 );
			uvB.fromArray( uvs, b * 2 );
			uvC.fromArray( uvs, c * 2 );

			vB.sub( vA );
			vC.sub( vA );

			uvB.sub( uvA );
			uvC.sub( uvA );

			const r = 1.0 / ( uvB.x * uvC.y - uvC.x * uvB.y );

			// silently ignore degenerate uv triangles having coincident or colinear vertices

			if ( ! isFinite( r ) ) return;

			sdir.copy( vB ).multiplyScalar( uvC.y ).addScaledVector( vC, - uvB.y ).multiplyScalar( r );
			tdir.copy( vC ).multiplyScalar( uvB.x ).addScaledVector( vB, - uvC.x ).multiplyScalar( r );

			tan1[ a ].add( sdir );
			tan1[ b ].add( sdir );
			tan1[ c ].add( sdir );

			tan2[ a ].add( tdir );
			tan2[ b ].add( tdir );
			tan2[ c ].add( tdir );

		}

		let groups = this.groups;

		if ( groups.length === 0 ) {

			groups = [ {
				start: 0,
				count: indices.length
			} ];

		}

		for ( let i = 0, il = groups.length; i < il; ++ i ) {

			const group = groups[ i ];

			const start = group.start;
			const count = group.count;

			for ( let j = start, jl = start + count; j < jl; j += 3 ) {

				handleTriangle(
					indices[ j + 0 ],
					indices[ j + 1 ],
					indices[ j + 2 ]
				);

			}

		}

		const tmp = new Vector3(), tmp2 = new Vector3();
		const n = new Vector3(), n2 = new Vector3();

		function handleVertex( v ) {

			n.fromArray( normals, v * 3 );
			n2.copy( n );

			const t = tan1[ v ];

			// Gram-Schmidt orthogonalize

			tmp.copy( t );
			tmp.sub( n.multiplyScalar( n.dot( t ) ) ).normalize();

			// Calculate handedness

			tmp2.crossVectors( n2, t );
			const test = tmp2.dot( tan2[ v ] );
			const w = ( test < 0.0 ) ? - 1.0 : 1.0;

			tangents[ v * 4 ] = tmp.x;
			tangents[ v * 4 + 1 ] = tmp.y;
			tangents[ v * 4 + 2 ] = tmp.z;
			tangents[ v * 4 + 3 ] = w;

		}

		for ( let i = 0, il = groups.length; i < il; ++ i ) {

			const group = groups[ i ];

			const start = group.start;
			const count = group.count;

			for ( let j = start, jl = start + count; j < jl; j += 3 ) {

				handleVertex( indices[ j + 0 ] );
				handleVertex( indices[ j + 1 ] );
				handleVertex( indices[ j + 2 ] );

			}

		}

	}

	computeVertexNormals() {

		const index = this.index;
		const positionAttribute = this.getAttribute( 'position' );

		if ( positionAttribute !== undefined ) {

			let normalAttribute = this.getAttribute( 'normal' );

			if ( normalAttribute === undefined ) {

				normalAttribute = new BufferAttribute( new Float32Array( positionAttribute.count * 3 ), 3 );
				this.setAttribute( 'normal', normalAttribute );

			} else {

				// reset existing normals to zero

				for ( let i = 0, il = normalAttribute.count; i < il; i ++ ) {

					normalAttribute.setXYZ( i, 0, 0, 0 );

				}

			}

			const pA = new Vector3(), pB = new Vector3(), pC = new Vector3();
			const nA = new Vector3(), nB = new Vector3(), nC = new Vector3();
			const cb = new Vector3(), ab = new Vector3();

			// indexed elements

			if ( index ) {

				for ( let i = 0, il = index.count; i < il; i += 3 ) {

					const vA = index.getX( i + 0 );
					const vB = index.getX( i + 1 );
					const vC = index.getX( i + 2 );

					pA.fromBufferAttribute( positionAttribute, vA );
					pB.fromBufferAttribute( positionAttribute, vB );
					pC.fromBufferAttribute( positionAttribute, vC );

					cb.subVectors( pC, pB );
					ab.subVectors( pA, pB );
					cb.cross( ab );

					nA.fromBufferAttribute( normalAttribute, vA );
					nB.fromBufferAttribute( normalAttribute, vB );
					nC.fromBufferAttribute( normalAttribute, vC );

					nA.add( cb );
					nB.add( cb );
					nC.add( cb );

					normalAttribute.setXYZ( vA, nA.x, nA.y, nA.z );
					normalAttribute.setXYZ( vB, nB.x, nB.y, nB.z );
					normalAttribute.setXYZ( vC, nC.x, nC.y, nC.z );

				}

			} else {

				// non-indexed elements (unconnected triangle soup)

				for ( let i = 0, il = positionAttribute.count; i < il; i += 3 ) {

					pA.fromBufferAttribute( positionAttribute, i + 0 );
					pB.fromBufferAttribute( positionAttribute, i + 1 );
					pC.fromBufferAttribute( positionAttribute, i + 2 );

					cb.subVectors( pC, pB );
					ab.subVectors( pA, pB );
					cb.cross( ab );

					normalAttribute.setXYZ( i + 0, cb.x, cb.y, cb.z );
					normalAttribute.setXYZ( i + 1, cb.x, cb.y, cb.z );
					normalAttribute.setXYZ( i + 2, cb.x, cb.y, cb.z );

				}

			}

			this.normalizeNormals();

			normalAttribute.needsUpdate = true;

		}

	}

	merge( geometry, offset ) {

		if ( ! ( geometry && geometry.isBufferGeometry ) ) {

			console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );
			return;

		}

		if ( offset === undefined ) {

			offset = 0;

			console.warn(
				'THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. '
				+ 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.'
			);

		}

		const attributes = this.attributes;

		for ( const key in attributes ) {

			if ( geometry.attributes[ key ] === undefined ) continue;

			const attribute1 = attributes[ key ];
			const attributeArray1 = attribute1.array;

			const attribute2 = geometry.attributes[ key ];
			const attributeArray2 = attribute2.array;

			const attributeOffset = attribute2.itemSize * offset;
			const length = Math.min( attributeArray2.length, attributeArray1.length - attributeOffset );

			for ( let i = 0, j = attributeOffset; i < length; i ++, j ++ ) {

				attributeArray1[ j ] = attributeArray2[ i ];

			}

		}

		return this;

	}

	normalizeNormals() {

		const normals = this.attributes.normal;

		for ( let i = 0, il = normals.count; i < il; i ++ ) {

			_vector$8.fromBufferAttribute( normals, i );

			_vector$8.normalize();

			normals.setXYZ( i, _vector$8.x, _vector$8.y, _vector$8.z );

		}

	}

	toNonIndexed() {

		function convertBufferAttribute( attribute, indices ) {

			const array = attribute.array;
			const itemSize = attribute.itemSize;
			const normalized = attribute.normalized;

			const array2 = new array.constructor( indices.length * itemSize );

			let index = 0, index2 = 0;

			for ( let i = 0, l = indices.length; i < l; i ++ ) {

				if ( attribute.isInterleavedBufferAttribute ) {

					index = indices[ i ] * attribute.data.stride + attribute.offset;

				} else {

					index = indices[ i ] * itemSize;

				}

				for ( let j = 0; j < itemSize; j ++ ) {

					array2[ index2 ++ ] = array[ index ++ ];

				}

			}

			return new BufferAttribute( array2, itemSize, normalized );

		}

		//

		if ( this.index === null ) {

			console.warn( 'THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed.' );
			return this;

		}

		const geometry2 = new BufferGeometry();

		const indices = this.index.array;
		const attributes = this.attributes;

		// attributes

		for ( const name in attributes ) {

			const attribute = attributes[ name ];

			const newAttribute = convertBufferAttribute( attribute, indices );

			geometry2.setAttribute( name, newAttribute );

		}

		// morph attributes

		const morphAttributes = this.morphAttributes;

		for ( const name in morphAttributes ) {

			const morphArray = [];
			const morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes

			for ( let i = 0, il = morphAttribute.length; i < il; i ++ ) {

				const attribute = morphAttribute[ i ];

				const newAttribute = convertBufferAttribute( attribute, indices );

				morphArray.push( newAttribute );

			}

			geometry2.morphAttributes[ name ] = morphArray;

		}

		geometry2.morphTargetsRelative = this.morphTargetsRelative;

		// groups

		const groups = this.groups;

		for ( let i = 0, l = groups.length; i < l; i ++ ) {

			const group = groups[ i ];
			geometry2.addGroup( group.start, group.count, group.materialIndex );

		}

		return geometry2;

	}

	toJSON() {

		const data = {
			metadata: {
				version: 4.5,
				type: 'BufferGeometry',
				generator: 'BufferGeometry.toJSON'
			}
		};

		// standard BufferGeometry serialization

		data.uuid = this.uuid;
		data.type = this.type;
		if ( this.name !== '' ) data.name = this.name;
		if ( Object.keys( this.userData ).length > 0 ) data.userData = this.userData;

		if ( this.parameters !== undefined ) {

			const parameters = this.parameters;

			for ( const key in parameters ) {

				if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];

			}

			return data;

		}

		// for simplicity the code assumes attributes are not shared across geometries, see #15811

		data.data = { attributes: {} };

		const index = this.index;

		if ( index !== null ) {

			data.data.index = {
				type: index.array.constructor.name,
				array: Array.prototype.slice.call( index.array )
			};

		}

		const attributes = this.attributes;

		for ( const key in attributes ) {

			const attribute = attributes[ key ];

			data.data.attributes[ key ] = attribute.toJSON( data.data );

		}

		const morphAttributes = {};
		let hasMorphAttributes = false;

		for ( const key in this.morphAttributes ) {

			const attributeArray = this.morphAttributes[ key ];

			const array = [];

			for ( let i = 0, il = attributeArray.length; i < il; i ++ ) {

				const attribute = attributeArray[ i ];

				array.push( attribute.toJSON( data.data ) );

			}

			if ( array.length > 0 ) {

				morphAttributes[ key ] = array;

				hasMorphAttributes = true;

			}

		}

		if ( hasMorphAttributes ) {

			data.data.morphAttributes = morphAttributes;
			data.data.morphTargetsRelative = this.morphTargetsRelative;

		}

		const groups = this.groups;

		if ( groups.length > 0 ) {

			data.data.groups = JSON.parse( JSON.stringify( groups ) );

		}

		const boundingSphere = this.boundingSphere;

		if ( boundingSphere !== null ) {

			data.data.boundingSphere = {
				center: boundingSphere.center.toArray(),
				radius: boundingSphere.radius
			};

		}

		return data;

	}

	clone() {

		 return new this.constructor().copy( this );

	}

	copy( source ) {

		// reset

		this.index = null;
		this.attributes = {};
		this.morphAttributes = {};
		this.groups = [];
		this.boundingBox = null;
		this.boundingSphere = null;

		// used for storing cloned, shared data

		const data = {};

		// name

		this.name = source.name;

		// index

		const index = source.index;

		if ( index !== null ) {

			this.setIndex( index.clone( data ) );

		}

		// attributes

		const attributes = source.attributes;

		for ( const name in attributes ) {

			const attribute = attributes[ name ];
			this.setAttribute( name, attribute.clone( data ) );

		}

		// morph attributes

		const morphAttributes = source.morphAttributes;

		for ( const name in morphAttributes ) {

			const array = [];
			const morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes

			for ( let i = 0, l = morphAttribute.length; i < l; i ++ ) {

				array.push( morphAttribute[ i ].clone( data ) );

			}

			this.morphAttributes[ name ] = array;

		}

		this.morphTargetsRelative = source.morphTargetsRelative;

		// groups

		const groups = source.groups;

		for ( let i = 0, l = groups.length; i < l; i ++ ) {

			const group = groups[ i ];
			this.addGroup( group.start, group.count, group.materialIndex );

		}

		// bounding box

		const boundingBox = source.boundingBox;

		if ( boundingBox !== null ) {

			this.boundingBox = boundingBox.clone();

		}

		// bounding sphere

		const boundingSphere = source.boundingSphere;

		if ( boundingSphere !== null ) {

			this.boundingSphere = boundingSphere.clone();

		}

		// draw range

		this.drawRange.start = source.drawRange.start;
		this.drawRange.count = source.drawRange.count;

		// user data

		this.userData = source.userData;

		// geometry generator parameters

		if ( source.parameters !== undefined ) this.parameters = Object.assign( {}, source.parameters );

		return this;

	}

	dispose() {

		this.dispatchEvent( { type: 'dispose' } );

	}

}

BufferGeometry.prototype.isBufferGeometry = true;

const _inverseMatrix$2 = /*@__PURE__*/ new Matrix4();
const _ray$2 = /*@__PURE__*/ new Ray();
const _sphere$3 = /*@__PURE__*/ new Sphere();

const _vA$1 = /*@__PURE__*/ new Vector3();
const _vB$1 = /*@__PURE__*/ new Vector3();
const _vC$1 = /*@__PURE__*/ new Vector3();

const _tempA = /*@__PURE__*/ new Vector3();
const _tempB = /*@__PURE__*/ new Vector3();
const _tempC = /*@__PURE__*/ new Vector3();

const _morphA = /*@__PURE__*/ new Vector3();
const _morphB = /*@__PURE__*/ new Vector3();
const _morphC = /*@__PURE__*/ new Vector3();

const _uvA$1 = /*@__PURE__*/ new Vector2();
const _uvB$1 = /*@__PURE__*/ new Vector2();
const _uvC$1 = /*@__PURE__*/ new Vector2();

const _intersectionPoint = /*@__PURE__*/ new Vector3();
const _intersectionPointWorld = /*@__PURE__*/ new Vector3();

class Mesh extends Object3D {

	constructor( geometry = new BufferGeometry(), material = new MeshBasicMaterial() ) {

		super();

		this.type = 'Mesh';

		this.geometry = geometry;
		this.material = material;

		this.updateMorphTargets();

	}

	copy( source ) {

		super.copy( source );

		if ( source.morphTargetInfluences !== undefined ) {

			this.morphTargetInfluences = source.morphTargetInfluences.slice();

		}

		if ( source.morphTargetDictionary !== undefined ) {

			this.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary );

		}

		this.material = source.material;
		this.geometry = source.geometry;

		return this;

	}

	updateMorphTargets() {

		const geometry = this.geometry;

		if ( geometry.isBufferGeometry ) {

			const morphAttributes = geometry.morphAttributes;
			const keys = Object.keys( morphAttributes );

			if ( keys.length > 0 ) {

				const morphAttribute = morphAttributes[ keys[ 0 ] ];

				if ( morphAttribute !== undefined ) {

					this.morphTargetInfluences = [];
					this.morphTargetDictionary = {};

					for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) {

						const name = morphAttribute[ m ].name || String( m );

						this.morphTargetInfluences.push( 0 );
						this.morphTargetDictionary[ name ] = m;

					}

				}

			}

		} else {

			const morphTargets = geometry.morphTargets;

			if ( morphTargets !== undefined && morphTargets.length > 0 ) {

				console.error( 'THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );

			}

		}

	}

	raycast( raycaster, intersects ) {

		const geometry = this.geometry;
		const material = this.material;
		const matrixWorld = this.matrixWorld;

		if ( material === undefined ) return;

		// Checking boundingSphere distance to ray

		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

		_sphere$3.copy( geometry.boundingSphere );
		_sphere$3.applyMatrix4( matrixWorld );

		if ( raycaster.ray.intersectsSphere( _sphere$3 ) === false ) return;

		//

		_inverseMatrix$2.copy( matrixWorld ).invert();
		_ray$2.copy( raycaster.ray ).applyMatrix4( _inverseMatrix$2 );

		// Check boundingBox before continuing

		if ( geometry.boundingBox !== null ) {

			if ( _ray$2.intersectsBox( geometry.boundingBox ) === false ) return;

		}

		let intersection;

		if ( geometry.isBufferGeometry ) {

			const index = geometry.index;
			const position = geometry.attributes.position;
			const morphPosition = geometry.morphAttributes.position;
			const morphTargetsRelative = geometry.morphTargetsRelative;
			const uv = geometry.attributes.uv;
			const uv2 = geometry.attributes.uv2;
			const groups = geometry.groups;
			const drawRange = geometry.drawRange;

			if ( index !== null ) {

				// indexed buffer geometry

				if ( Array.isArray( material ) ) {

					for ( let i = 0, il = groups.length; i < il; i ++ ) {

						const group = groups[ i ];
						const groupMaterial = material[ group.materialIndex ];

						const start = Math.max( group.start, drawRange.start );
						const end = Math.min( index.count, Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ) );

						for ( let j = start, jl = end; j < jl; j += 3 ) {

							const a = index.getX( j );
							const b = index.getX( j + 1 );
							const c = index.getX( j + 2 );

							intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c );

							if ( intersection ) {

								intersection.faceIndex = Math.floor( j / 3 ); // triangle number in indexed buffer semantics
								intersection.face.materialIndex = group.materialIndex;
								intersects.push( intersection );

							}

						}

					}

				} else {

					const start = Math.max( 0, drawRange.start );
					const end = Math.min( index.count, ( drawRange.start + drawRange.count ) );

					for ( let i = start, il = end; i < il; i += 3 ) {

						const a = index.getX( i );
						const b = index.getX( i + 1 );
						const c = index.getX( i + 2 );

						intersection = checkBufferGeometryIntersection( this, material, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c );

						if ( intersection ) {

							intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indexed buffer semantics
							intersects.push( intersection );

						}

					}

				}

			} else if ( position !== undefined ) {

				// non-indexed buffer geometry

				if ( Array.isArray( material ) ) {

					for ( let i = 0, il = groups.length; i < il; i ++ ) {

						const group = groups[ i ];
						const groupMaterial = material[ group.materialIndex ];

						const start = Math.max( group.start, drawRange.start );
						const end = Math.min( position.count, Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ) );

						for ( let j = start, jl = end; j < jl; j += 3 ) {

							const a = j;
							const b = j + 1;
							const c = j + 2;

							intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c );

							if ( intersection ) {

								intersection.faceIndex = Math.floor( j / 3 ); // triangle number in non-indexed buffer semantics
								intersection.face.materialIndex = group.materialIndex;
								intersects.push( intersection );

							}

						}

					}

				} else {

					const start = Math.max( 0, drawRange.start );
					const end = Math.min( position.count, ( drawRange.start + drawRange.count ) );

					for ( let i = start, il = end; i < il; i += 3 ) {

						const a = i;
						const b = i + 1;
						const c = i + 2;

						intersection = checkBufferGeometryIntersection( this, material, raycaster, _ray$2, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c );

						if ( intersection ) {

							intersection.faceIndex = Math.floor( i / 3 ); // triangle number in non-indexed buffer semantics
							intersects.push( intersection );

						}

					}

				}

			}

		} else if ( geometry.isGeometry ) {

			console.error( 'THREE.Mesh.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );

		}

	}

}

Mesh.prototype.isMesh = true;

function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {

	let intersect;

	if ( material.side === BackSide ) {

		intersect = ray.intersectTriangle( pC, pB, pA, true, point );

	} else {

		intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );

	}

	if ( intersect === null ) return null;

	_intersectionPointWorld.copy( point );
	_intersectionPointWorld.applyMatrix4( object.matrixWorld );

	const distance = raycaster.ray.origin.distanceTo( _intersectionPointWorld );

	if ( distance < raycaster.near || distance > raycaster.far ) return null;

	return {
		distance: distance,
		point: _intersectionPointWorld.clone(),
		object: object
	};

}

function checkBufferGeometryIntersection( object, material, raycaster, ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ) {

	_vA$1.fromBufferAttribute( position, a );
	_vB$1.fromBufferAttribute( position, b );
	_vC$1.fromBufferAttribute( position, c );

	const morphInfluences = object.morphTargetInfluences;

	if ( morphPosition && morphInfluences ) {

		_morphA.set( 0, 0, 0 );
		_morphB.set( 0, 0, 0 );
		_morphC.set( 0, 0, 0 );

		for ( let i = 0, il = morphPosition.length; i < il; i ++ ) {

			const influence = morphInfluences[ i ];
			const morphAttribute = morphPosition[ i ];

			if ( influence === 0 ) continue;

			_tempA.fromBufferAttribute( morphAttribute, a );
			_tempB.fromBufferAttribute( morphAttribute, b );
			_tempC.fromBufferAttribute( morphAttribute, c );

			if ( morphTargetsRelative ) {

				_morphA.addScaledVector( _tempA, influence );
				_morphB.addScaledVector( _tempB, influence );
				_morphC.addScaledVector( _tempC, influence );

			} else {

				_morphA.addScaledVector( _tempA.sub( _vA$1 ), influence );
				_morphB.addScaledVector( _tempB.sub( _vB$1 ), influence );
				_morphC.addScaledVector( _tempC.sub( _vC$1 ), influence );

			}

		}

		_vA$1.add( _morphA );
		_vB$1.add( _morphB );
		_vC$1.add( _morphC );

	}

	if ( object.isSkinnedMesh ) {

		object.boneTransform( a, _vA$1 );
		object.boneTransform( b, _vB$1 );
		object.boneTransform( c, _vC$1 );

	}

	const intersection = checkIntersection( object, material, raycaster, ray, _vA$1, _vB$1, _vC$1, _intersectionPoint );

	if ( intersection ) {

		if ( uv ) {

			_uvA$1.fromBufferAttribute( uv, a );
			_uvB$1.fromBufferAttribute( uv, b );
			_uvC$1.fromBufferAttribute( uv, c );

			intersection.uv = Triangle.getUV( _intersectionPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2() );

		}

		if ( uv2 ) {

			_uvA$1.fromBufferAttribute( uv2, a );
			_uvB$1.fromBufferAttribute( uv2, b );
			_uvC$1.fromBufferAttribute( uv2, c );

			intersection.uv2 = Triangle.getUV( _intersectionPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2() );

		}

		const face = {
			a: a,
			b: b,
			c: c,
			normal: new Vector3(),
			materialIndex: 0
		};

		Triangle.getNormal( _vA$1, _vB$1, _vC$1, face.normal );

		intersection.face = face;

	}

	return intersection;

}

class BoxGeometry extends BufferGeometry {

	constructor( width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1 ) {

		super();

		this.type = 'BoxGeometry';

		this.parameters = {
			width: width,
			height: height,
			depth: depth,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			depthSegments: depthSegments
		};

		const scope = this;

		// segments

		widthSegments = Math.floor( widthSegments );
		heightSegments = Math.floor( heightSegments );
		depthSegments = Math.floor( depthSegments );

		// buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		// helper variables

		let numberOfVertices = 0;
		let groupStart = 0;

		// build each side of the box geometry

		buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px
		buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx
		buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py
		buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny
		buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz
		buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {

			const segmentWidth = width / gridX;
			const segmentHeight = height / gridY;

			const widthHalf = width / 2;
			const heightHalf = height / 2;
			const depthHalf = depth / 2;

			const gridX1 = gridX + 1;
			const gridY1 = gridY + 1;

			let vertexCounter = 0;
			let groupCount = 0;

			const vector = new Vector3();

			// generate vertices, normals and uvs

			for ( let iy = 0; iy < gridY1; iy ++ ) {

				const y = iy * segmentHeight - heightHalf;

				for ( let ix = 0; ix < gridX1; ix ++ ) {

					const x = ix * segmentWidth - widthHalf;

					// set values to correct vector component

					vector[ u ] = x * udir;
					vector[ v ] = y * vdir;
					vector[ w ] = depthHalf;

					// now apply vector to vertex buffer

					vertices.push( vector.x, vector.y, vector.z );

					// set values to correct vector component

					vector[ u ] = 0;
					vector[ v ] = 0;
					vector[ w ] = depth > 0 ? 1 : - 1;

					// now apply vector to normal buffer

					normals.push( vector.x, vector.y, vector.z );

					// uvs

					uvs.push( ix / gridX );
					uvs.push( 1 - ( iy / gridY ) );

					// counters

					vertexCounter += 1;

				}

			}

			// indices

			// 1. you need three indices to draw a single face
			// 2. a single segment consists of two faces
			// 3. so we need to generate six (2*3) indices per segment

			for ( let iy = 0; iy < gridY; iy ++ ) {

				for ( let ix = 0; ix < gridX; ix ++ ) {

					const a = numberOfVertices + ix + gridX1 * iy;
					const b = numberOfVertices + ix + gridX1 * ( iy + 1 );
					const c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );
					const d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;

					// faces

					indices.push( a, b, d );
					indices.push( b, c, d );

					// increase counter

					groupCount += 6;

				}

			}

			// add a group to the geometry. this will ensure multi material support

			scope.addGroup( groupStart, groupCount, materialIndex );

			// calculate new start value for groups

			groupStart += groupCount;

			// update total number of vertices

			numberOfVertices += vertexCounter;

		}

	}

	static fromJSON( data ) {

		return new BoxGeometry( data.width, data.height, data.depth, data.widthSegments, data.heightSegments, data.depthSegments );

	}

}

/**
 * Uniform Utilities
 */

function cloneUniforms( src ) {

	const dst = {};

	for ( const u in src ) {

		dst[ u ] = {};

		for ( const p in src[ u ] ) {

			const property = src[ u ][ p ];

			if ( property && ( property.isColor ||
				property.isMatrix3 || property.isMatrix4 ||
				property.isVector2 || property.isVector3 || property.isVector4 ||
				property.isTexture || property.isQuaternion ) ) {

				dst[ u ][ p ] = property.clone();

			} else if ( Array.isArray( property ) ) {

				dst[ u ][ p ] = property.slice();

			} else {

				dst[ u ][ p ] = property;

			}

		}

	}

	return dst;

}

function mergeUniforms( uniforms ) {

	const merged = {};

	for ( let u = 0; u < uniforms.length; u ++ ) {

		const tmp = cloneUniforms( uniforms[ u ] );

		for ( const p in tmp ) {

			merged[ p ] = tmp[ p ];

		}

	}

	return merged;

}

// Legacy

const UniformsUtils = { clone: cloneUniforms, merge: mergeUniforms };

var default_vertex = "void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";

var default_fragment = "void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";

/**
 * parameters = {
 *  defines: { "label" : "value" },
 *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
 *
 *  fragmentShader: <string>,
 *  vertexShader: <string>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  lights: <bool>
 * }
 */

class ShaderMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'ShaderMaterial';

		this.defines = {};
		this.uniforms = {};

		this.vertexShader = default_vertex;
		this.fragmentShader = default_fragment;

		this.linewidth = 1;

		this.wireframe = false;
		this.wireframeLinewidth = 1;

		this.fog = false; // set to use scene fog
		this.lights = false; // set to use scene lights
		this.clipping = false; // set to use user-defined clipping planes

		this.extensions = {
			derivatives: false, // set to use derivatives
			fragDepth: false, // set to use fragment depth values
			drawBuffers: false, // set to use draw buffers
			shaderTextureLOD: false // set to use shader texture LOD
		};

		// When rendered geometry doesn't include these attributes but the material does,
		// use these default values in WebGL. This avoids errors when buffer data is missing.
		this.defaultAttributeValues = {
			'color': [ 1, 1, 1 ],
			'uv': [ 0, 0 ],
			'uv2': [ 0, 0 ]
		};

		this.index0AttributeName = undefined;
		this.uniformsNeedUpdate = false;

		this.glslVersion = null;

		if ( parameters !== undefined ) {

			if ( parameters.attributes !== undefined ) {

				console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );

			}

			this.setValues( parameters );

		}

	}

	copy( source ) {

		super.copy( source );

		this.fragmentShader = source.fragmentShader;
		this.vertexShader = source.vertexShader;

		this.uniforms = cloneUniforms( source.uniforms );

		this.defines = Object.assign( {}, source.defines );

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;

		this.lights = source.lights;
		this.clipping = source.clipping;

		this.extensions = Object.assign( {}, source.extensions );

		this.glslVersion = source.glslVersion;

		return this;

	}

	toJSON( meta ) {

		const data = super.toJSON( meta );

		data.glslVersion = this.glslVersion;
		data.uniforms = {};

		for ( const name in this.uniforms ) {

			const uniform = this.uniforms[ name ];
			const value = uniform.value;

			if ( value && value.isTexture ) {

				data.uniforms[ name ] = {
					type: 't',
					value: value.toJSON( meta ).uuid
				};

			} else if ( value && value.isColor ) {

				data.uniforms[ name ] = {
					type: 'c',
					value: value.getHex()
				};

			} else if ( value && value.isVector2 ) {

				data.uniforms[ name ] = {
					type: 'v2',
					value: value.toArray()
				};

			} else if ( value && value.isVector3 ) {

				data.uniforms[ name ] = {
					type: 'v3',
					value: value.toArray()
				};

			} else if ( value && value.isVector4 ) {

				data.uniforms[ name ] = {
					type: 'v4',
					value: value.toArray()
				};

			} else if ( value && value.isMatrix3 ) {

				data.uniforms[ name ] = {
					type: 'm3',
					value: value.toArray()
				};

			} else if ( value && value.isMatrix4 ) {

				data.uniforms[ name ] = {
					type: 'm4',
					value: value.toArray()
				};

			} else {

				data.uniforms[ name ] = {
					value: value
				};

				// note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far

			}

		}

		if ( Object.keys( this.defines ).length > 0 ) data.defines = this.defines;

		data.vertexShader = this.vertexShader;
		data.fragmentShader = this.fragmentShader;

		const extensions = {};

		for ( const key in this.extensions ) {

			if ( this.extensions[ key ] === true ) extensions[ key ] = true;

		}

		if ( Object.keys( extensions ).length > 0 ) data.extensions = extensions;

		return data;

	}

}

ShaderMaterial.prototype.isShaderMaterial = true;

class Camera extends Object3D {

	constructor() {

		super();

		this.type = 'Camera';

		this.matrixWorldInverse = new Matrix4();

		this.projectionMatrix = new Matrix4();
		this.projectionMatrixInverse = new Matrix4();

	}

	copy( source, recursive ) {

		super.copy( source, recursive );

		this.matrixWorldInverse.copy( source.matrixWorldInverse );

		this.projectionMatrix.copy( source.projectionMatrix );
		this.projectionMatrixInverse.copy( source.projectionMatrixInverse );

		return this;

	}

	getWorldDirection( target ) {

		this.updateWorldMatrix( true, false );

		const e = this.matrixWorld.elements;

		return target.set( - e[ 8 ], - e[ 9 ], - e[ 10 ] ).normalize();

	}

	updateMatrixWorld( force ) {

		super.updateMatrixWorld( force );

		this.matrixWorldInverse.copy( this.matrixWorld ).invert();

	}

	updateWorldMatrix( updateParents, updateChildren ) {

		super.updateWorldMatrix( updateParents, updateChildren );

		this.matrixWorldInverse.copy( this.matrixWorld ).invert();

	}

	clone() {

		return new this.constructor().copy( this );

	}

}

Camera.prototype.isCamera = true;

class PerspectiveCamera extends Camera {

	constructor( fov = 50, aspect = 1, near = 0.1, far = 2000 ) {

		super();

		this.type = 'PerspectiveCamera';

		this.fov = fov;
		this.zoom = 1;

		this.near = near;
		this.far = far;
		this.focus = 10;

		this.aspect = aspect;
		this.view = null;

		this.filmGauge = 35;	// width of the film (default in millimeters)
		this.filmOffset = 0;	// horizontal film offset (same unit as gauge)

		this.updateProjectionMatrix();

	}

	copy( source, recursive ) {

		super.copy( source, recursive );

		this.fov = source.fov;
		this.zoom = source.zoom;

		this.near = source.near;
		this.far = source.far;
		this.focus = source.focus;

		this.aspect = source.aspect;
		this.view = source.view === null ? null : Object.assign( {}, source.view );

		this.filmGauge = source.filmGauge;
		this.filmOffset = source.filmOffset;

		return this;

	}

	/**
	 * Sets the FOV by focal length in respect to the current .filmGauge.
	 *
	 * The default film gauge is 35, so that the focal length can be specified for
	 * a 35mm (full frame) camera.
	 *
	 * Values for focal length and film gauge must have the same unit.
	 */
	setFocalLength( focalLength ) {

		/** see {@link http://www.bobatkins.com/photography/technical/field_of_view.html} */
		const vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;

		this.fov = RAD2DEG * 2 * Math.atan( vExtentSlope );
		this.updateProjectionMatrix();

	}

	/**
	 * Calculates the focal length from the current .fov and .filmGauge.
	 */
	getFocalLength() {

		const vExtentSlope = Math.tan( DEG2RAD * 0.5 * this.fov );

		return 0.5 * this.getFilmHeight() / vExtentSlope;

	}

	getEffectiveFOV() {

		return RAD2DEG * 2 * Math.atan(
			Math.tan( DEG2RAD * 0.5 * this.fov ) / this.zoom );

	}

	getFilmWidth() {

		// film not completely covered in portrait format (aspect < 1)
		return this.filmGauge * Math.min( this.aspect, 1 );

	}

	getFilmHeight() {

		// film not completely covered in landscape format (aspect > 1)
		return this.filmGauge / Math.max( this.aspect, 1 );

	}

	/**
	 * Sets an offset in a larger frustum. This is useful for multi-window or
	 * multi-monitor/multi-machine setups.
	 *
	 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
	 * the monitors are in grid like this
	 *
	 *   +---+---+---+
	 *   | A | B | C |
	 *   +---+---+---+
	 *   | D | E | F |
	 *   +---+---+---+
	 *
	 * then for each monitor you would call it like this
	 *
	 *   const w = 1920;
	 *   const h = 1080;
	 *   const fullWidth = w * 3;
	 *   const fullHeight = h * 2;
	 *
	 *   --A--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
	 *   --B--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
	 *   --C--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
	 *   --D--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
	 *   --E--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
	 *   --F--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
	 *
	 *   Note there is no reason monitors have to be the same size or in a grid.
	 */
	setViewOffset( fullWidth, fullHeight, x, y, width, height ) {

		this.aspect = fullWidth / fullHeight;

		if ( this.view === null ) {

			this.view = {
				enabled: true,
				fullWidth: 1,
				fullHeight: 1,
				offsetX: 0,
				offsetY: 0,
				width: 1,
				height: 1
			};

		}

		this.view.enabled = true;
		this.view.fullWidth = fullWidth;
		this.view.fullHeight = fullHeight;
		this.view.offsetX = x;
		this.view.offsetY = y;
		this.view.width = width;
		this.view.height = height;

		this.updateProjectionMatrix();

	}

	clearViewOffset() {

		if ( this.view !== null ) {

			this.view.enabled = false;

		}

		this.updateProjectionMatrix();

	}

	updateProjectionMatrix() {

		const near = this.near;
		let top = near * Math.tan( DEG2RAD * 0.5 * this.fov ) / this.zoom;
		let height = 2 * top;
		let width = this.aspect * height;
		let left = - 0.5 * width;
		const view = this.view;

		if ( this.view !== null && this.view.enabled ) {

			const fullWidth = view.fullWidth,
				fullHeight = view.fullHeight;

			left += view.offsetX * width / fullWidth;
			top -= view.offsetY * height / fullHeight;
			width *= view.width / fullWidth;
			height *= view.height / fullHeight;

		}

		const skew = this.filmOffset;
		if ( skew !== 0 ) left += near * skew / this.getFilmWidth();

		this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );

		this.projectionMatrixInverse.copy( this.projectionMatrix ).invert();

	}

	toJSON( meta ) {

		const data = super.toJSON( meta );

		data.object.fov = this.fov;
		data.object.zoom = this.zoom;

		data.object.near = this.near;
		data.object.far = this.far;
		data.object.focus = this.focus;

		data.object.aspect = this.aspect;

		if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );

		data.object.filmGauge = this.filmGauge;
		data.object.filmOffset = this.filmOffset;

		return data;

	}

}

PerspectiveCamera.prototype.isPerspectiveCamera = true;

const fov = 90, aspect = 1;

class CubeCamera extends Object3D {

	constructor( near, far, renderTarget ) {

		super();

		this.type = 'CubeCamera';

		if ( renderTarget.isWebGLCubeRenderTarget !== true ) {

			console.error( 'THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.' );
			return;

		}

		this.renderTarget = renderTarget;

		const cameraPX = new PerspectiveCamera( fov, aspect, near, far );
		cameraPX.layers = this.layers;
		cameraPX.up.set( 0, - 1, 0 );
		cameraPX.lookAt( new Vector3( 1, 0, 0 ) );
		this.add( cameraPX );

		const cameraNX = new PerspectiveCamera( fov, aspect, near, far );
		cameraNX.layers = this.layers;
		cameraNX.up.set( 0, - 1, 0 );
		cameraNX.lookAt( new Vector3( - 1, 0, 0 ) );
		this.add( cameraNX );

		const cameraPY = new PerspectiveCamera( fov, aspect, near, far );
		cameraPY.layers = this.layers;
		cameraPY.up.set( 0, 0, 1 );
		cameraPY.lookAt( new Vector3( 0, 1, 0 ) );
		this.add( cameraPY );

		const cameraNY = new PerspectiveCamera( fov, aspect, near, far );
		cameraNY.layers = this.layers;
		cameraNY.up.set( 0, 0, - 1 );
		cameraNY.lookAt( new Vector3( 0, - 1, 0 ) );
		this.add( cameraNY );

		const cameraPZ = new PerspectiveCamera( fov, aspect, near, far );
		cameraPZ.layers = this.layers;
		cameraPZ.up.set( 0, - 1, 0 );
		cameraPZ.lookAt( new Vector3( 0, 0, 1 ) );
		this.add( cameraPZ );

		const cameraNZ = new PerspectiveCamera( fov, aspect, near, far );
		cameraNZ.layers = this.layers;
		cameraNZ.up.set( 0, - 1, 0 );
		cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );
		this.add( cameraNZ );

	}

	update( renderer, scene ) {

		if ( this.parent === null ) this.updateMatrixWorld();

		const renderTarget = this.renderTarget;

		const [ cameraPX, cameraNX, cameraPY, cameraNY, cameraPZ, cameraNZ ] = this.children;

		const currentXrEnabled = renderer.xr.enabled;
		const currentRenderTarget = renderer.getRenderTarget();

		renderer.xr.enabled = false;

		const generateMipmaps = renderTarget.texture.generateMipmaps;

		renderTarget.texture.generateMipmaps = false;

		renderer.setRenderTarget( renderTarget, 0 );
		renderer.render( scene, cameraPX );

		renderer.setRenderTarget( renderTarget, 1 );
		renderer.render( scene, cameraNX );

		renderer.setRenderTarget( renderTarget, 2 );
		renderer.render( scene, cameraPY );

		renderer.setRenderTarget( renderTarget, 3 );
		renderer.render( scene, cameraNY );

		renderer.setRenderTarget( renderTarget, 4 );
		renderer.render( scene, cameraPZ );

		renderTarget.texture.generateMipmaps = generateMipmaps;

		renderer.setRenderTarget( renderTarget, 5 );
		renderer.render( scene, cameraNZ );

		renderer.setRenderTarget( currentRenderTarget );

		renderer.xr.enabled = currentXrEnabled;

		renderTarget.texture.needsPMREMUpdate = true;

	}

}

class CubeTexture extends Texture {

	constructor( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {

		images = images !== undefined ? images : [];
		mapping = mapping !== undefined ? mapping : CubeReflectionMapping;

		super( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

		this.flipY = false;

	}

	get images() {

		return this.image;

	}

	set images( value ) {

		this.image = value;

	}

}

CubeTexture.prototype.isCubeTexture = true;

class WebGLCubeRenderTarget extends WebGLRenderTarget {

	constructor( size, options, dummy ) {

		if ( Number.isInteger( options ) ) {

			console.warn( 'THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )' );

			options = dummy;

		}

		super( size, size, options );

		options = options || {};

		// By convention -- likely based on the RenderMan spec from the 1990's -- cube maps are specified by WebGL (and three.js)
		// in a coordinate system in which positive-x is to the right when looking up the positive-z axis -- in other words,
		// in a left-handed coordinate system. By continuing this convention, preexisting cube maps continued to render correctly.

		// three.js uses a right-handed coordinate system. So environment maps used in three.js appear to have px and nx swapped
		// and the flag isRenderTargetTexture controls this conversion. The flip is not required when using WebGLCubeRenderTarget.texture
		// as a cube texture (this is detected when isRenderTargetTexture is set to true for cube textures).

		this.texture = new CubeTexture( undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );
		this.texture.isRenderTargetTexture = true;

		this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
		this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;

	}

	fromEquirectangularTexture( renderer, texture ) {

		this.texture.type = texture.type;
		this.texture.format = RGBAFormat; // see #18859
		this.texture.encoding = texture.encoding;

		this.texture.generateMipmaps = texture.generateMipmaps;
		this.texture.minFilter = texture.minFilter;
		this.texture.magFilter = texture.magFilter;

		const shader = {

			uniforms: {
				tEquirect: { value: null },
			},

			vertexShader: /* glsl */`

				varying vec3 vWorldDirection;

				vec3 transformDirection( in vec3 dir, in mat4 matrix ) {

					return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );

				}

				void main() {

					vWorldDirection = transformDirection( position, modelMatrix );

					#include <begin_vertex>
					#include <project_vertex>

				}
			`,

			fragmentShader: /* glsl */`

				uniform sampler2D tEquirect;

				varying vec3 vWorldDirection;

				#include <common>

				void main() {

					vec3 direction = normalize( vWorldDirection );

					vec2 sampleUV = equirectUv( direction );

					gl_FragColor = texture2D( tEquirect, sampleUV );

				}
			`
		};

		const geometry = new BoxGeometry( 5, 5, 5 );

		const material = new ShaderMaterial( {

			name: 'CubemapFromEquirect',

			uniforms: cloneUniforms( shader.uniforms ),
			vertexShader: shader.vertexShader,
			fragmentShader: shader.fragmentShader,
			side: BackSide,
			blending: NoBlending

		} );

		material.uniforms.tEquirect.value = texture;

		const mesh = new Mesh( geometry, material );

		const currentMinFilter = texture.minFilter;

		// Avoid blurred poles
		if ( texture.minFilter === LinearMipmapLinearFilter ) texture.minFilter = LinearFilter;

		const camera = new CubeCamera( 1, 10, this );
		camera.update( renderer, mesh );

		texture.minFilter = currentMinFilter;

		mesh.geometry.dispose();
		mesh.material.dispose();

		return this;

	}

	clear( renderer, color, depth, stencil ) {

		const currentRenderTarget = renderer.getRenderTarget();

		for ( let i = 0; i < 6; i ++ ) {

			renderer.setRenderTarget( this, i );

			renderer.clear( color, depth, stencil );

		}

		renderer.setRenderTarget( currentRenderTarget );

	}

}

WebGLCubeRenderTarget.prototype.isWebGLCubeRenderTarget = true;

const _vector1 = /*@__PURE__*/ new Vector3();
const _vector2 = /*@__PURE__*/ new Vector3();
const _normalMatrix = /*@__PURE__*/ new Matrix3();

class Plane {

	constructor( normal = new Vector3( 1, 0, 0 ), constant = 0 ) {

		// normal is assumed to be normalized

		this.normal = normal;
		this.constant = constant;

	}

	set( normal, constant ) {

		this.normal.copy( normal );
		this.constant = constant;

		return this;

	}

	setComponents( x, y, z, w ) {

		this.normal.set( x, y, z );
		this.constant = w;

		return this;

	}

	setFromNormalAndCoplanarPoint( normal, point ) {

		this.normal.copy( normal );
		this.constant = - point.dot( this.normal );

		return this;

	}

	setFromCoplanarPoints( a, b, c ) {

		const normal = _vector1.subVectors( c, b ).cross( _vector2.subVectors( a, b ) ).normalize();

		// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?

		this.setFromNormalAndCoplanarPoint( normal, a );

		return this;

	}

	copy( plane ) {

		this.normal.copy( plane.normal );
		this.constant = plane.constant;

		return this;

	}

	normalize() {

		// Note: will lead to a divide by zero if the plane is invalid.

		const inverseNormalLength = 1.0 / this.normal.length();
		this.normal.multiplyScalar( inverseNormalLength );
		this.constant *= inverseNormalLength;

		return this;

	}

	negate() {

		this.constant *= - 1;
		this.normal.negate();

		return this;

	}

	distanceToPoint( point ) {

		return this.normal.dot( point ) + this.constant;

	}

	distanceToSphere( sphere ) {

		return this.distanceToPoint( sphere.center ) - sphere.radius;

	}

	projectPoint( point, target ) {

		return target.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point );

	}

	intersectLine( line, target ) {

		const direction = line.delta( _vector1 );

		const denominator = this.normal.dot( direction );

		if ( denominator === 0 ) {

			// line is coplanar, return origin
			if ( this.distanceToPoint( line.start ) === 0 ) {

				return target.copy( line.start );

			}

			// Unsure if this is the correct method to handle this case.
			return null;

		}

		const t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;

		if ( t < 0 || t > 1 ) {

			return null;

		}

		return target.copy( direction ).multiplyScalar( t ).add( line.start );

	}

	intersectsLine( line ) {

		// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.

		const startSign = this.distanceToPoint( line.start );
		const endSign = this.distanceToPoint( line.end );

		return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );

	}

	intersectsBox( box ) {

		return box.intersectsPlane( this );

	}

	intersectsSphere( sphere ) {

		return sphere.intersectsPlane( this );

	}

	coplanarPoint( target ) {

		return target.copy( this.normal ).multiplyScalar( - this.constant );

	}

	applyMatrix4( matrix, optionalNormalMatrix ) {

		const normalMatrix = optionalNormalMatrix || _normalMatrix.getNormalMatrix( matrix );

		const referencePoint = this.coplanarPoint( _vector1 ).applyMatrix4( matrix );

		const normal = this.normal.applyMatrix3( normalMatrix ).normalize();

		this.constant = - referencePoint.dot( normal );

		return this;

	}

	translate( offset ) {

		this.constant -= offset.dot( this.normal );

		return this;

	}

	equals( plane ) {

		return plane.normal.equals( this.normal ) && ( plane.constant === this.constant );

	}

	clone() {

		return new this.constructor().copy( this );

	}

}

Plane.prototype.isPlane = true;

const _sphere$2 = /*@__PURE__*/ new Sphere();
const _vector$7 = /*@__PURE__*/ new Vector3();

class Frustum {

	constructor( p0 = new Plane(), p1 = new Plane(), p2 = new Plane(), p3 = new Plane(), p4 = new Plane(), p5 = new Plane() ) {

		this.planes = [ p0, p1, p2, p3, p4, p5 ];

	}

	set( p0, p1, p2, p3, p4, p5 ) {

		const planes = this.planes;

		planes[ 0 ].copy( p0 );
		planes[ 1 ].copy( p1 );
		planes[ 2 ].copy( p2 );
		planes[ 3 ].copy( p3 );
		planes[ 4 ].copy( p4 );
		planes[ 5 ].copy( p5 );

		return this;

	}

	copy( frustum ) {

		const planes = this.planes;

		for ( let i = 0; i < 6; i ++ ) {

			planes[ i ].copy( frustum.planes[ i ] );

		}

		return this;

	}

	setFromProjectionMatrix( m ) {

		const planes = this.planes;
		const me = m.elements;
		const me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];
		const me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];
		const me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];
		const me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];

		planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();
		planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();
		planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();
		planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();
		planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();
		planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();

		return this;

	}

	intersectsObject( object ) {

		const geometry = object.geometry;

		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

		_sphere$2.copy( geometry.boundingSphere ).applyMatrix4( object.matrixWorld );

		return this.intersectsSphere( _sphere$2 );

	}

	intersectsSprite( sprite ) {

		_sphere$2.center.set( 0, 0, 0 );
		_sphere$2.radius = 0.7071067811865476;
		_sphere$2.applyMatrix4( sprite.matrixWorld );

		return this.intersectsSphere( _sphere$2 );

	}

	intersectsSphere( sphere ) {

		const planes = this.planes;
		const center = sphere.center;
		const negRadius = - sphere.radius;

		for ( let i = 0; i < 6; i ++ ) {

			const distance = planes[ i ].distanceToPoint( center );

			if ( distance < negRadius ) {

				return false;

			}

		}

		return true;

	}

	intersectsBox( box ) {

		const planes = this.planes;

		for ( let i = 0; i < 6; i ++ ) {

			const plane = planes[ i ];

			// corner at max distance

			_vector$7.x = plane.normal.x > 0 ? box.max.x : box.min.x;
			_vector$7.y = plane.normal.y > 0 ? box.max.y : box.min.y;
			_vector$7.z = plane.normal.z > 0 ? box.max.z : box.min.z;

			if ( plane.distanceToPoint( _vector$7 ) < 0 ) {

				return false;

			}

		}

		return true;

	}

	containsPoint( point ) {

		const planes = this.planes;

		for ( let i = 0; i < 6; i ++ ) {

			if ( planes[ i ].distanceToPoint( point ) < 0 ) {

				return false;

			}

		}

		return true;

	}

	clone() {

		return new this.constructor().copy( this );

	}

}

function WebGLAnimation() {

	let context = null;
	let isAnimating = false;
	let animationLoop = null;
	let requestId = null;

	function onAnimationFrame( time, frame ) {

		animationLoop( time, frame );

		requestId = context.requestAnimationFrame( onAnimationFrame );

	}

	return {

		start: function () {

			if ( isAnimating === true ) return;
			if ( animationLoop === null ) return;

			requestId = context.requestAnimationFrame( onAnimationFrame );

			isAnimating = true;

		},

		stop: function () {

			context.cancelAnimationFrame( requestId );

			isAnimating = false;

		},

		setAnimationLoop: function ( callback ) {

			animationLoop = callback;

		},

		setContext: function ( value ) {

			context = value;

		}

	};

}

function WebGLAttributes( gl, capabilities ) {

	const isWebGL2 = capabilities.isWebGL2;

	const buffers = new WeakMap();

	function createBuffer( attribute, bufferType ) {

		const array = attribute.array;
		const usage = attribute.usage;

		const buffer = gl.createBuffer();

		gl.bindBuffer( bufferType, buffer );
		gl.bufferData( bufferType, array, usage );

		attribute.onUploadCallback();

		let type = 5126;

		if ( array instanceof Float32Array ) {

			type = 5126;

		} else if ( array instanceof Float64Array ) {

			console.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' );

		} else if ( array instanceof Uint16Array ) {

			if ( attribute.isFloat16BufferAttribute ) {

				if ( isWebGL2 ) {

					type = 5131;

				} else {

					console.warn( 'THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2.' );

				}

			} else {

				type = 5123;

			}

		} else if ( array instanceof Int16Array ) {

			type = 5122;

		} else if ( array instanceof Uint32Array ) {

			type = 5125;

		} else if ( array instanceof Int32Array ) {

			type = 5124;

		} else if ( array instanceof Int8Array ) {

			type = 5120;

		} else if ( array instanceof Uint8Array ) {

			type = 5121;

		} else if ( array instanceof Uint8ClampedArray ) {

			type = 5121;

		}

		return {
			buffer: buffer,
			type: type,
			bytesPerElement: array.BYTES_PER_ELEMENT,
			version: attribute.version
		};

	}

	function updateBuffer( buffer, attribute, bufferType ) {

		const array = attribute.array;
		const updateRange = attribute.updateRange;

		gl.bindBuffer( bufferType, buffer );

		if ( updateRange.count === - 1 ) {

			// Not using update ranges

			gl.bufferSubData( bufferType, 0, array );

		} else {

			if ( isWebGL2 ) {

				gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
					array, updateRange.offset, updateRange.count );

			} else {

				gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
					array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );

			}

			updateRange.count = - 1; // reset range

		}

	}

	//

	function get( attribute ) {

		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

		return buffers.get( attribute );

	}

	function remove( attribute ) {

		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

		const data = buffers.get( attribute );

		if ( data ) {

			gl.deleteBuffer( data.buffer );

			buffers.delete( attribute );

		}

	}

	function update( attribute, bufferType ) {

		if ( attribute.isGLBufferAttribute ) {

			const cached = buffers.get( attribute );

			if ( ! cached || cached.version < attribute.version ) {

				buffers.set( attribute, {
					buffer: attribute.buffer,
					type: attribute.type,
					bytesPerElement: attribute.elementSize,
					version: attribute.version
				} );

			}

			return;

		}

		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

		const data = buffers.get( attribute );

		if ( data === undefined ) {

			buffers.set( attribute, createBuffer( attribute, bufferType ) );

		} else if ( data.version < attribute.version ) {

			updateBuffer( data.buffer, attribute, bufferType );

			data.version = attribute.version;

		}

	}

	return {

		get: get,
		remove: remove,
		update: update

	};

}

class PlaneGeometry extends BufferGeometry {

	constructor( width = 1, height = 1, widthSegments = 1, heightSegments = 1 ) {

		super();
		this.type = 'PlaneGeometry';

		this.parameters = {
			width: width,
			height: height,
			widthSegments: widthSegments,
			heightSegments: heightSegments
		};

		const width_half = width / 2;
		const height_half = height / 2;

		const gridX = Math.floor( widthSegments );
		const gridY = Math.floor( heightSegments );

		const gridX1 = gridX + 1;
		const gridY1 = gridY + 1;

		const segment_width = width / gridX;
		const segment_height = height / gridY;

		//

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		for ( let iy = 0; iy < gridY1; iy ++ ) {

			const y = iy * segment_height - height_half;

			for ( let ix = 0; ix < gridX1; ix ++ ) {

				const x = ix * segment_width - width_half;

				vertices.push( x, - y, 0 );

				normals.push( 0, 0, 1 );

				uvs.push( ix / gridX );
				uvs.push( 1 - ( iy / gridY ) );

			}

		}

		for ( let iy = 0; iy < gridY; iy ++ ) {

			for ( let ix = 0; ix < gridX; ix ++ ) {

				const a = ix + gridX1 * iy;
				const b = ix + gridX1 * ( iy + 1 );
				const c = ( ix + 1 ) + gridX1 * ( iy + 1 );
				const d = ( ix + 1 ) + gridX1 * iy;

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	static fromJSON( data ) {

		return new PlaneGeometry( data.width, data.height, data.widthSegments, data.heightSegments );

	}

}

var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif";

var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";

var alphatest_fragment = "#ifdef USE_ALPHATEST\n\tif ( diffuseColor.a < alphaTest ) discard;\n#endif";

var alphatest_pars_fragment = "#ifdef USE_ALPHATEST\n\tuniform float alphaTest;\n#endif";

var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.roughness );\n\t#endif\n#endif";

var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";

var begin_vertex = "vec3 transformed = vec3( position );";

var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif";

var bsdfs = "vec3 BRDF_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 f0, const in float f90, const in float dotVH ) {\n\tfloat fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n\treturn f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n}\nfloat V_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_GGX( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 f0, const in float f90, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( f0, f90, dotVH );\n\tfloat V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( V * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_BlinnPhong( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotVH = saturate( dot( viewDir, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, 1.0, dotVH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie( float roughness, float dotNH ) {\n\tfloat alpha = pow2( roughness );\n\tfloat invAlpha = 1.0 / alpha;\n\tfloat cos2h = dotNH * dotNH;\n\tfloat sin2h = max( 1.0 - cos2h, 0.0078125 );\n\treturn ( 2.0 + invAlpha ) * pow( sin2h, invAlpha * 0.5 ) / ( 2.0 * PI );\n}\nfloat V_Neubelt( float dotNV, float dotNL ) {\n\treturn saturate( 1.0 / ( 4.0 * ( dotNL + dotNV - dotNL * dotNV ) ) );\n}\nvec3 BRDF_Sheen( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, vec3 sheenColor, const in float sheenRoughness ) {\n\tvec3 halfDir = normalize( lightDir + viewDir );\n\tfloat dotNL = saturate( dot( normal, lightDir ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat D = D_Charlie( sheenRoughness, dotNH );\n\tfloat V = V_Neubelt( dotNV, dotNL );\n\treturn sheenColor * ( D * V );\n}\n#endif";

var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 ) * faceDirection;\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif";

var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif";

var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif";

var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif";

var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif";

var color_fragment = "#if defined( USE_COLOR_ALPHA )\n\tdiffuseColor *= vColor;\n#elif defined( USE_COLOR )\n\tdiffuseColor.rgb *= vColor;\n#endif";

var color_pars_fragment = "#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR )\n\tvarying vec3 vColor;\n#endif";

var color_pars_vertex = "#if defined( USE_COLOR_ALPHA )\n\tvarying vec4 vColor;\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif";

var color_vertex = "#if defined( USE_COLOR_ALPHA )\n\tvColor = vec4( 1.0 );\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor *= color;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif";

var common = "#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement( a ) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat max3( const in vec3 v ) { return max( max( v.x, v.y ), v.z ); }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract( sin( sn ) * c );\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}";

var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 ) + 0.5;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\treturn texture2D( envMap, uv ).rgb;\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif";

var defaultnormal_vertex = "vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif";

var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif";

var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif";

var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif";

var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif";

var encodings_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );";

var encodings_pars_fragment = "vec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}";

var envmap_fragment = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif";

var envmap_common_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif";

var envmap_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif";

var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif";

var envmap_vertex = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif";

var fog_vertex = "#ifdef USE_FOG\n\tvFogDepth = - mvPosition.z;\n#endif";

var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying float vFogDepth;\n#endif";

var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * vFogDepth * vFogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, vFogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif";

var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float vFogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif";

var gradientmap_pars_fragment = "#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn vec3( texture2D( gradientMap, coord ).r );\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}";

var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel = texture2D( lightMap, vUv2 );\n\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tlightMapIrradiance *= PI;\n\t#endif\n\treflectedLight.indirectDiffuse += lightMapIrradiance;\n#endif";

var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";

var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry.normal );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry.normal );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointLightInfo( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( - dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotLightInfo( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( - dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalLightInfo( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( - dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry.normal );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry.normal );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif";

var lights_pars_begin = "uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in vec3 normal ) {\n\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\treturn irradiance;\n}\nfloat getDistanceAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\t#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tif ( cutoffDistance > 0.0 ) {\n\t\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\t}\n\t\treturn distanceFalloff;\n\t#else\n\t\tif ( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\t\treturn pow( saturate( - lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t\t}\n\t\treturn 1.0;\n\t#endif\n}\nfloat getSpotAttenuation( const in float coneCosine, const in float penumbraCosine, const in float angleCosine ) {\n\treturn smoothstep( coneCosine, penumbraCosine, angleCosine );\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalLightInfo( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tlight.color = directionalLight.color;\n\t\tlight.direction = directionalLight.direction;\n\t\tlight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointLightInfo( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tlight.color = pointLight.color;\n\t\tlight.color *= getDistanceAttenuation( lightDistance, pointLight.distance, pointLight.decay );\n\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotLightInfo( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight light ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tlight.direction = normalize( lVector );\n\t\tfloat angleCos = dot( light.direction, spotLight.direction );\n\t\tfloat spotAttenuation = getSpotAttenuation( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\tif ( spotAttenuation > 0.0 ) {\n\t\t\tfloat lightDistance = length( lVector );\n\t\t\tlight.color = spotLight.color * spotAttenuation;\n\t\t\tlight.color *= getDistanceAttenuation( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tlight.visible = ( light.color != vec3( 0.0 ) );\n\t\t} else {\n\t\t\tlight.color = vec3( 0.0 );\n\t\t\tlight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in vec3 normal ) {\n\t\tfloat dotNL = dot( normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\treturn irradiance;\n\t}\n#endif";

var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getIBLIrradiance( const in vec3 normal ) {\n\t\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n\tvec3 getIBLRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness ) {\n\t\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 reflectVec;\n\t\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\t\treflectVec = reflect( - viewDir, normal );\n\t\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t\t#else\n\t\t\t\treflectVec = refract( - viewDir, normal, refractionRatio );\n\t\t\t#endif\n\t\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t\treturn envMapColor.rgb * envMapIntensity;\n\t\t#else\n\t\t\treturn vec3( 0.0 );\n\t\t#endif\n\t}\n#endif";

var lights_toon_fragment = "ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;";

var lights_toon_pars_fragment = "varying vec3 vViewPosition;\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)";

var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;";

var lights_phong_pars_fragment = "varying vec3 vViewPosition;\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_BlinnPhong( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)";

var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.roughness = max( roughnessFactor, 0.0525 );material.roughness += geometryRoughness;\nmaterial.roughness = min( material.roughness, 1.0 );\n#ifdef IOR\n\t#ifdef SPECULAR\n\t\tfloat specularIntensityFactor = specularIntensity;\n\t\tvec3 specularColorFactor = specularColor;\n\t\t#ifdef USE_SPECULARINTENSITYMAP\n\t\t\tspecularIntensityFactor *= texture2D( specularIntensityMap, vUv ).a;\n\t\t#endif\n\t\t#ifdef USE_SPECULARCOLORMAP\n\t\t\tspecularColorFactor *= texture2D( specularColorMap, vUv ).rgb;\n\t\t#endif\n\t\tmaterial.specularF90 = mix( specularIntensityFactor, 1.0, metalnessFactor );\n\t#else\n\t\tfloat specularIntensityFactor = 1.0;\n\t\tvec3 specularColorFactor = vec3( 1.0 );\n\t\tmaterial.specularF90 = 1.0;\n\t#endif\n\tmaterial.specularColor = mix( min( pow2( ( ior - 1.0 ) / ( ior + 1.0 ) ) * specularColorFactor, vec3( 1.0 ) ) * specularIntensityFactor, diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.specularF90 = 1.0;\n#endif\n#ifdef USE_CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\tmaterial.clearcoatF0 = vec3( 0.04 );\n\tmaterial.clearcoatF90 = 1.0;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheenColor;\n\t#ifdef USE_SHEENCOLORMAP\n\t\tmaterial.sheenColor *= texture2D( sheenColorMap, vUv ).rgb;\n\t#endif\n\tmaterial.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 );\n\t#ifdef USE_SHEENROUGHNESSMAP\n\t\tmaterial.sheenRoughness *= texture2D( sheenRoughnessMap, vUv ).a;\n\t#endif\n#endif";

var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat roughness;\n\tvec3 specularColor;\n\tfloat specularF90;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat clearcoat;\n\t\tfloat clearcoatRoughness;\n\t\tvec3 clearcoatF0;\n\t\tfloat clearcoatF90;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tvec3 sheenColor;\n\t\tfloat sheenRoughness;\n\t#endif\n};\nvec3 clearcoatSpecular = vec3( 0.0 );\nvec3 sheenSpecular = vec3( 0.0 );\nfloat IBLSheenBRDF( const in vec3 normal, const in vec3 viewDir, const in float roughness) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat r2 = roughness * roughness;\n\tfloat a = roughness < 0.25 ? -339.2 * r2 + 161.4 * roughness - 25.9 : -8.48 * r2 + 14.3 * roughness - 9.95;\n\tfloat b = roughness < 0.25 ? 44.0 * r2 - 23.7 * roughness + 3.26 : 1.97 * r2 - 3.27 * roughness + 0.72;\n\tfloat DG = exp( a * dotNV + b ) + ( roughness < 0.25 ? 0.0 : 0.1 * ( roughness - 0.25 ) );\n\treturn saturate( DG * RECIPROCAL_PI );\n}\nvec2 DFGApprox( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 fab = vec2( - 1.04, 1.04 ) * a004 + r.zw;\n\treturn fab;\n}\nvec3 EnvironmentBRDF( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\treturn specularColor * fab.x + specularF90 * fab.y;\n}\nvoid computeMultiscattering( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tvec2 fab = DFGApprox( normal, viewDir, roughness );\n\tvec3 FssEss = specularColor * fab.x + specularF90 * fab.y;\n\tfloat Ess = fab.x + fab.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.roughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNLcc = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = dotNLcc * directLight.color;\n\t\tclearcoatSpecular += ccIrradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.clearcoatNormal, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * BRDF_Sheen( directLight.direction, geometry.viewDir, geometry.normal, material.sheenColor, material.sheenRoughness );\n\t#endif\n\treflectedLight.directSpecular += irradiance * BRDF_GGX( directLight.direction, geometry.viewDir, geometry.normal, material.specularColor, material.specularF90, material.roughness );\n\treflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatSpecular += clearcoatRadiance * EnvironmentBRDF( geometry.clearcoatNormal, geometry.viewDir, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n\t#endif\n\t#ifdef USE_SHEEN\n\t\tsheenSpecular += irradiance * material.sheenColor * IBLSheenBRDF( geometry.normal, geometry.viewDir, material.sheenRoughness );\n\t#endif\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tcomputeMultiscattering( geometry.normal, geometry.viewDir, material.specularColor, material.specularF90, material.roughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}";

var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef USE_CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointLightInfo( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotLightInfo( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalLightInfo( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry.normal );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry.normal );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif";

var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel = texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getIBLIrradiance( geometry.normal );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getIBLRadiance( geometry.viewDir, geometry.normal, material.roughness );\n\t#ifdef USE_CLEARCOAT\n\t\tclearcoatRadiance += getIBLRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness );\n\t#endif\n#endif";

var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif";

var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";

var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif";

var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif";

var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif";

var map_fragment = "#ifdef USE_MAP\n\tvec4 sampledDiffuseColor = texture2D( map, vUv );\n\t#ifdef DECODE_VIDEO_TEXTURE\n\t\tsampledDiffuseColor = vec4( mix( pow( sampledDiffuseColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), sampledDiffuseColor.rgb * 0.0773993808, vec3( lessThanEqual( sampledDiffuseColor.rgb, vec3( 0.04045 ) ) ) ), sampledDiffuseColor.w );\n\t#endif\n\tdiffuseColor *= sampledDiffuseColor;\n#endif";

var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif";

var map_particle_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tdiffuseColor *= texture2D( map, uv );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif";

var map_particle_pars_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";

var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif";

var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";

var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) objectNormal += getMorph( gl_VertexID, i, 1, 2 ) * morphTargetInfluences[ i ];\n\t\t}\n\t#else\n\t\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\t\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\t\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\t\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n\t#endif\n#endif";

var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tuniform float morphTargetInfluences[ MORPHTARGETS_COUNT ];\n\t\tuniform sampler2DArray morphTargetsTexture;\n\t\tuniform vec2 morphTargetsTextureSize;\n\t\tvec3 getMorph( const in int vertexIndex, const in int morphTargetIndex, const in int offset, const in int stride ) {\n\t\t\tfloat texelIndex = float( vertexIndex * stride + offset );\n\t\t\tfloat y = floor( texelIndex / morphTargetsTextureSize.x );\n\t\t\tfloat x = texelIndex - y * morphTargetsTextureSize.x;\n\t\t\tvec3 morphUV = vec3( ( x + 0.5 ) / morphTargetsTextureSize.x, y / morphTargetsTextureSize.y, morphTargetIndex );\n\t\t\treturn texture( morphTargetsTexture, morphUV ).xyz;\n\t\t}\n\t#else\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\tuniform float morphTargetInfluences[ 8 ];\n\t\t#else\n\t\t\tuniform float morphTargetInfluences[ 4 ];\n\t\t#endif\n\t#endif\n#endif";

var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\t#ifdef MORPHTARGETS_TEXTURE\n\t\tfor ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n\t\t\t#ifndef USE_MORPHNORMALS\n\t\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) transformed += getMorph( gl_VertexID, i, 0, 1 ) * morphTargetInfluences[ i ];\n\t\t\t#else\n\t\t\t\tif ( morphTargetInfluences[ i ] != 0.0 ) transformed += getMorph( gl_VertexID, i, 0, 2 ) * morphTargetInfluences[ i ];\n\t\t\t#endif\n\t\t}\n\t#else\n\t\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\t\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\t\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\t\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t\t#ifndef USE_MORPHNORMALS\n\t\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t\t#endif\n\t#endif\n#endif";

var normal_fragment_begin = "float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * faceDirection;\n\t\t\tbitangent = bitangent * faceDirection;\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;";

var normal_fragment_maps = "#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * faceDirection;\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( - vViewPosition, normal, mapN, faceDirection );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( - vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif";

var normal_pars_fragment = "#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif";

var normal_pars_vertex = "#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif";

var normal_vertex = "#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif";

var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN, float faceDirection ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 N = surf_norm;\n\t\tvec3 q1perp = cross( q1, N );\n\t\tvec3 q0perp = cross( N, q0 );\n\t\tvec3 T = q1perp * st0.x + q0perp * st1.x;\n\t\tvec3 B = q1perp * st0.y + q0perp * st1.y;\n\t\tfloat det = max( dot( T, T ), dot( B, B ) );\n\t\tfloat scale = ( det == 0.0 ) ? 0.0 : faceDirection * inversesqrt( det );\n\t\treturn normalize( T * ( mapN.x * scale ) + B * ( mapN.y * scale ) + N * mapN.z );\n\t}\n#endif";

var clearcoat_normal_fragment_begin = "#ifdef USE_CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif";

var clearcoat_normal_fragment_maps = "#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN, faceDirection );\n\t#endif\n#endif";

var clearcoat_pars_fragment = "#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif";

var output_fragment = "#ifdef OPAQUE\ndiffuseColor.a = 1.0;\n#endif\n#ifdef USE_TRANSMISSION\ndiffuseColor.a *= transmissionAlpha + 0.1;\n#endif\ngl_FragColor = vec4( outgoingLight, diffuseColor.a );";

var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ) );\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w );\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( ( near + viewZ ) * far ) / ( ( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}";

var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif";

var project_vertex = "vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;";

var dithering_fragment = "#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif";

var dithering_pars_fragment = "#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif";

var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif";

var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";

var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif";

var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif";

var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif";

var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}";

var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";

var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif";

var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif";

var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif";

var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";

var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";

var tonemapping_fragment = "#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif";

var tonemapping_pars_fragment = "#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }";

var transmission_fragment = "#ifdef USE_TRANSMISSION\n\tfloat transmissionAlpha = 1.0;\n\tfloat transmissionFactor = transmission;\n\tfloat thicknessFactor = thickness;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\ttransmissionFactor *= texture2D( transmissionMap, vUv ).r;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tthicknessFactor *= texture2D( thicknessMap, vUv ).g;\n\t#endif\n\tvec3 pos = vWorldPosition;\n\tvec3 v = normalize( cameraPosition - pos );\n\tvec3 n = inverseTransformDirection( normal, viewMatrix );\n\tvec4 transmission = getIBLVolumeRefraction(\n\t\tn, v, roughnessFactor, material.diffuseColor, material.specularColor, material.specularF90,\n\t\tpos, modelMatrix, viewMatrix, projectionMatrix, ior, thicknessFactor,\n\t\tattenuationColor, attenuationDistance );\n\ttotalDiffuse = mix( totalDiffuse, transmission.rgb, transmissionFactor );\n\ttransmissionAlpha = mix( transmissionAlpha, transmission.a, transmissionFactor );\n#endif";

var transmission_pars_fragment = "#ifdef USE_TRANSMISSION\n\tuniform float transmission;\n\tuniform float thickness;\n\tuniform float attenuationDistance;\n\tuniform vec3 attenuationColor;\n\t#ifdef USE_TRANSMISSIONMAP\n\t\tuniform sampler2D transmissionMap;\n\t#endif\n\t#ifdef USE_THICKNESSMAP\n\t\tuniform sampler2D thicknessMap;\n\t#endif\n\tuniform vec2 transmissionSamplerSize;\n\tuniform sampler2D transmissionSamplerMap;\n\tuniform mat4 modelMatrix;\n\tuniform mat4 projectionMatrix;\n\tvarying vec3 vWorldPosition;\n\tvec3 getVolumeTransmissionRay( const in vec3 n, const in vec3 v, const in float thickness, const in float ior, const in mat4 modelMatrix ) {\n\t\tvec3 refractionVector = refract( - v, normalize( n ), 1.0 / ior );\n\t\tvec3 modelScale;\n\t\tmodelScale.x = length( vec3( modelMatrix[ 0 ].xyz ) );\n\t\tmodelScale.y = length( vec3( modelMatrix[ 1 ].xyz ) );\n\t\tmodelScale.z = length( vec3( modelMatrix[ 2 ].xyz ) );\n\t\treturn normalize( refractionVector ) * thickness * modelScale;\n\t}\n\tfloat applyIorToRoughness( const in float roughness, const in float ior ) {\n\t\treturn roughness * clamp( ior * 2.0 - 2.0, 0.0, 1.0 );\n\t}\n\tvec4 getTransmissionSample( const in vec2 fragCoord, const in float roughness, const in float ior ) {\n\t\tfloat framebufferLod = log2( transmissionSamplerSize.x ) * applyIorToRoughness( roughness, ior );\n\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\treturn texture2DLodEXT( transmissionSamplerMap, fragCoord.xy, framebufferLod );\n\t\t#else\n\t\t\treturn texture2D( transmissionSamplerMap, fragCoord.xy, framebufferLod );\n\t\t#endif\n\t}\n\tvec3 applyVolumeAttenuation( const in vec3 radiance, const in float transmissionDistance, const in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tif ( attenuationDistance == 0.0 ) {\n\t\t\treturn radiance;\n\t\t} else {\n\t\t\tvec3 attenuationCoefficient = -log( attenuationColor ) / attenuationDistance;\n\t\t\tvec3 transmittance = exp( - attenuationCoefficient * transmissionDistance );\t\t\treturn transmittance * radiance;\n\t\t}\n\t}\n\tvec4 getIBLVolumeRefraction( const in vec3 n, const in vec3 v, const in float roughness, const in vec3 diffuseColor,\n\t\tconst in vec3 specularColor, const in float specularF90, const in vec3 position, const in mat4 modelMatrix,\n\t\tconst in mat4 viewMatrix, const in mat4 projMatrix, const in float ior, const in float thickness,\n\t\tconst in vec3 attenuationColor, const in float attenuationDistance ) {\n\t\tvec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, ior, modelMatrix );\n\t\tvec3 refractedRayExit = position + transmissionRay;\n\t\tvec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n\t\tvec2 refractionCoords = ndcPos.xy / ndcPos.w;\n\t\trefractionCoords += 1.0;\n\t\trefractionCoords /= 2.0;\n\t\tvec4 transmittedLight = getTransmissionSample( refractionCoords, roughness, ior );\n\t\tvec3 attenuatedColor = applyVolumeAttenuation( transmittedLight.rgb, length( transmissionRay ), attenuationColor, attenuationDistance );\n\t\tvec3 F = EnvironmentBRDF( n, v, specularColor, specularF90, roughness );\n\t\treturn vec4( ( 1.0 - F ) * attenuatedColor * diffuseColor, transmittedLight.a );\n\t}\n#endif";

var uv_pars_fragment = "#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif";

var uv_pars_vertex = "#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif";

var uv_vertex = "#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";

var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";

var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif";

var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif";

var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP ) || defined ( USE_TRANSMISSION )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif";

const vertex$g = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}";

const fragment$g = "uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tgl_FragColor = texture2D( t2D, vUv );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";

const vertex$f = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}";

const fragment$f = "#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";

const vertex$e = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}";

const fragment$e = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}";

const vertex$d = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}";

const fragment$d = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}";

const vertex$c = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}";

const fragment$c = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";

const vertex$b = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";

const fragment$b = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";

const vertex$a = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#if defined ( USE_ENVMAP ) || defined ( USE_SKINNING )\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinbase_vertex>\n\t\t#include <skinnormal_vertex>\n\t\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}";

const fragment$a = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexel.rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$9 = "#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";

const fragment$9 = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$8 = "#define MATCAP\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}";

const fragment$8 = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <fog_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t#else\n\t\tvec4 matcapColor = vec4( vec3( mix( 0.2, 0.8, uv.y ) ), 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$7 = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}";

const fragment$7 = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n\t#ifdef OPAQUE\n\t\tgl_FragColor.a = 1.0;\n\t#endif\n}";

const vertex$6 = "#define PHONG\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";

const fragment$6 = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$5 = "#define STANDARD\nvarying vec3 vViewPosition;\n#ifdef USE_TRANSMISSION\n\tvarying vec3 vWorldPosition;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n#ifdef USE_TRANSMISSION\n\tvWorldPosition = worldPosition.xyz;\n#endif\n}";

const fragment$5 = "#define STANDARD\n#ifdef PHYSICAL\n\t#define IOR\n\t#define SPECULAR\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef IOR\n\tuniform float ior;\n#endif\n#ifdef SPECULAR\n\tuniform float specularIntensity;\n\tuniform vec3 specularColor;\n\t#ifdef USE_SPECULARINTENSITYMAP\n\t\tuniform sampler2D specularIntensityMap;\n\t#endif\n\t#ifdef USE_SPECULARCOLORMAP\n\t\tuniform sampler2D specularColorMap;\n\t#endif\n#endif\n#ifdef USE_CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheenColor;\n\tuniform float sheenRoughness;\n\t#ifdef USE_SHEENCOLORMAP\n\t\tuniform sampler2D sheenColorMap;\n\t#endif\n\t#ifdef USE_SHEENROUGHNESSMAP\n\t\tuniform sampler2D sheenRoughnessMap;\n\t#endif\n#endif\nvarying vec3 vViewPosition;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_physical_pars_fragment>\n#include <transmission_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 totalDiffuse = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse;\n\tvec3 totalSpecular = reflectedLight.directSpecular + reflectedLight.indirectSpecular;\n\t#include <transmission_fragment>\n\tvec3 outgoingLight = totalDiffuse + totalSpecular + totalEmissiveRadiance;\n\t#ifdef USE_SHEEN\n\t\tfloat sheenEnergyComp = 1.0 - 0.157 * max3( material.sheenColor );\n\t\toutgoingLight = outgoingLight * sheenEnergyComp + sheenSpecular;\n\t#endif\n\t#ifdef USE_CLEARCOAT\n\t\tfloat dotNVcc = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\tvec3 Fcc = F_Schlick( material.clearcoatF0, material.clearcoatF90, dotNVcc );\n\t\toutgoingLight = outgoingLight * ( 1.0 - material.clearcoat * Fcc ) + clearcoatSpecular * material.clearcoat;\n\t#endif\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$4 = "#define TOON\nvarying vec3 vViewPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <normal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";

const fragment$4 = "#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";

const vertex$3 = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}";

const fragment$3 = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";

const vertex$2 = "#include <common>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";

const fragment$2 = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";

const vertex$1 = "uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";

const fragment$1 = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\t#include <output_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";

const ShaderChunk = {
	alphamap_fragment: alphamap_fragment,
	alphamap_pars_fragment: alphamap_pars_fragment,
	alphatest_fragment: alphatest_fragment,
	alphatest_pars_fragment: alphatest_pars_fragment,
	aomap_fragment: aomap_fragment,
	aomap_pars_fragment: aomap_pars_fragment,
	begin_vertex: begin_vertex,
	beginnormal_vertex: beginnormal_vertex,
	bsdfs: bsdfs,
	bumpmap_pars_fragment: bumpmap_pars_fragment,
	clipping_planes_fragment: clipping_planes_fragment,
	clipping_planes_pars_fragment: clipping_planes_pars_fragment,
	clipping_planes_pars_vertex: clipping_planes_pars_vertex,
	clipping_planes_vertex: clipping_planes_vertex,
	color_fragment: color_fragment,
	color_pars_fragment: color_pars_fragment,
	color_pars_vertex: color_pars_vertex,
	color_vertex: color_vertex,
	common: common,
	cube_uv_reflection_fragment: cube_uv_reflection_fragment,
	defaultnormal_vertex: defaultnormal_vertex,
	displacementmap_pars_vertex: displacementmap_pars_vertex,
	displacementmap_vertex: displacementmap_vertex,
	emissivemap_fragment: emissivemap_fragment,
	emissivemap_pars_fragment: emissivemap_pars_fragment,
	encodings_fragment: encodings_fragment,
	encodings_pars_fragment: encodings_pars_fragment,
	envmap_fragment: envmap_fragment,
	envmap_common_pars_fragment: envmap_common_pars_fragment,
	envmap_pars_fragment: envmap_pars_fragment,
	envmap_pars_vertex: envmap_pars_vertex,
	envmap_physical_pars_fragment: envmap_physical_pars_fragment,
	envmap_vertex: envmap_vertex,
	fog_vertex: fog_vertex,
	fog_pars_vertex: fog_pars_vertex,
	fog_fragment: fog_fragment,
	fog_pars_fragment: fog_pars_fragment,
	gradientmap_pars_fragment: gradientmap_pars_fragment,
	lightmap_fragment: lightmap_fragment,
	lightmap_pars_fragment: lightmap_pars_fragment,
	lights_lambert_vertex: lights_lambert_vertex,
	lights_pars_begin: lights_pars_begin,
	lights_toon_fragment: lights_toon_fragment,
	lights_toon_pars_fragment: lights_toon_pars_fragment,
	lights_phong_fragment: lights_phong_fragment,
	lights_phong_pars_fragment: lights_phong_pars_fragment,
	lights_physical_fragment: lights_physical_fragment,
	lights_physical_pars_fragment: lights_physical_pars_fragment,
	lights_fragment_begin: lights_fragment_begin,
	lights_fragment_maps: lights_fragment_maps,
	lights_fragment_end: lights_fragment_end,
	logdepthbuf_fragment: logdepthbuf_fragment,
	logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
	logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
	logdepthbuf_vertex: logdepthbuf_vertex,
	map_fragment: map_fragment,
	map_pars_fragment: map_pars_fragment,
	map_particle_fragment: map_particle_fragment,
	map_particle_pars_fragment: map_particle_pars_fragment,
	metalnessmap_fragment: metalnessmap_fragment,
	metalnessmap_pars_fragment: metalnessmap_pars_fragment,
	morphnormal_vertex: morphnormal_vertex,
	morphtarget_pars_vertex: morphtarget_pars_vertex,
	morphtarget_vertex: morphtarget_vertex,
	normal_fragment_begin: normal_fragment_begin,
	normal_fragment_maps: normal_fragment_maps,
	normal_pars_fragment: normal_pars_fragment,
	normal_pars_vertex: normal_pars_vertex,
	normal_vertex: normal_vertex,
	normalmap_pars_fragment: normalmap_pars_fragment,
	clearcoat_normal_fragment_begin: clearcoat_normal_fragment_begin,
	clearcoat_normal_fragment_maps: clearcoat_normal_fragment_maps,
	clearcoat_pars_fragment: clearcoat_pars_fragment,
	output_fragment: output_fragment,
	packing: packing,
	premultiplied_alpha_fragment: premultiplied_alpha_fragment,
	project_vertex: project_vertex,
	dithering_fragment: dithering_fragment,
	dithering_pars_fragment: dithering_pars_fragment,
	roughnessmap_fragment: roughnessmap_fragment,
	roughnessmap_pars_fragment: roughnessmap_pars_fragment,
	shadowmap_pars_fragment: shadowmap_pars_fragment,
	shadowmap_pars_vertex: shadowmap_pars_vertex,
	shadowmap_vertex: shadowmap_vertex,
	shadowmask_pars_fragment: shadowmask_pars_fragment,
	skinbase_vertex: skinbase_vertex,
	skinning_pars_vertex: skinning_pars_vertex,
	skinning_vertex: skinning_vertex,
	skinnormal_vertex: skinnormal_vertex,
	specularmap_fragment: specularmap_fragment,
	specularmap_pars_fragment: specularmap_pars_fragment,
	tonemapping_fragment: tonemapping_fragment,
	tonemapping_pars_fragment: tonemapping_pars_fragment,
	transmission_fragment: transmission_fragment,
	transmission_pars_fragment: transmission_pars_fragment,
	uv_pars_fragment: uv_pars_fragment,
	uv_pars_vertex: uv_pars_vertex,
	uv_vertex: uv_vertex,
	uv2_pars_fragment: uv2_pars_fragment,
	uv2_pars_vertex: uv2_pars_vertex,
	uv2_vertex: uv2_vertex,
	worldpos_vertex: worldpos_vertex,

	background_vert: vertex$g,
	background_frag: fragment$g,
	cube_vert: vertex$f,
	cube_frag: fragment$f,
	depth_vert: vertex$e,
	depth_frag: fragment$e,
	distanceRGBA_vert: vertex$d,
	distanceRGBA_frag: fragment$d,
	equirect_vert: vertex$c,
	equirect_frag: fragment$c,
	linedashed_vert: vertex$b,
	linedashed_frag: fragment$b,
	meshbasic_vert: vertex$a,
	meshbasic_frag: fragment$a,
	meshlambert_vert: vertex$9,
	meshlambert_frag: fragment$9,
	meshmatcap_vert: vertex$8,
	meshmatcap_frag: fragment$8,
	meshnormal_vert: vertex$7,
	meshnormal_frag: fragment$7,
	meshphong_vert: vertex$6,
	meshphong_frag: fragment$6,
	meshphysical_vert: vertex$5,
	meshphysical_frag: fragment$5,
	meshtoon_vert: vertex$4,
	meshtoon_frag: fragment$4,
	points_vert: vertex$3,
	points_frag: fragment$3,
	shadow_vert: vertex$2,
	shadow_frag: fragment$2,
	sprite_vert: vertex$1,
	sprite_frag: fragment$1
};

/**
 * Uniforms library for shared webgl shaders
 */

const UniformsLib = {

	common: {

		diffuse: { value: new Color( 0xffffff ) },
		opacity: { value: 1.0 },

		map: { value: null },
		uvTransform: { value: new Matrix3() },
		uv2Transform: { value: new Matrix3() },

		alphaMap: { value: null },
		alphaTest: { value: 0 }

	},

	specularmap: {

		specularMap: { value: null },

	},

	envmap: {

		envMap: { value: null },
		flipEnvMap: { value: - 1 },
		reflectivity: { value: 1.0 }, // basic, lambert, phong
		ior: { value: 1.5 }, // standard, physical
		refractionRatio: { value: 0.98 }

	},

	aomap: {

		aoMap: { value: null },
		aoMapIntensity: { value: 1 }

	},

	lightmap: {

		lightMap: { value: null },
		lightMapIntensity: { value: 1 }

	},

	emissivemap: {

		emissiveMap: { value: null }

	},

	bumpmap: {

		bumpMap: { value: null },
		bumpScale: { value: 1 }

	},

	normalmap: {

		normalMap: { value: null },
		normalScale: { value: new Vector2( 1, 1 ) }

	},

	displacementmap: {

		displacementMap: { value: null },
		displacementScale: { value: 1 },
		displacementBias: { value: 0 }

	},

	roughnessmap: {

		roughnessMap: { value: null }

	},

	metalnessmap: {

		metalnessMap: { value: null }

	},

	gradientmap: {

		gradientMap: { value: null }

	},

	fog: {

		fogDensity: { value: 0.00025 },
		fogNear: { value: 1 },
		fogFar: { value: 2000 },
		fogColor: { value: new Color( 0xffffff ) }

	},

	lights: {

		ambientLightColor: { value: [] },

		lightProbe: { value: [] },

		directionalLights: { value: [], properties: {
			direction: {},
			color: {}
		} },

		directionalLightShadows: { value: [], properties: {
			shadowBias: {},
			shadowNormalBias: {},
			shadowRadius: {},
			shadowMapSize: {}
		} },

		directionalShadowMap: { value: [] },
		directionalShadowMatrix: { value: [] },

		spotLights: { value: [], properties: {
			color: {},
			position: {},
			direction: {},
			distance: {},
			coneCos: {},
			penumbraCos: {},
			decay: {}
		} },

		spotLightShadows: { value: [], properties: {
			shadowBias: {},
			shadowNormalBias: {},
			shadowRadius: {},
			shadowMapSize: {}
		} },

		spotShadowMap: { value: [] },
		spotShadowMatrix: { value: [] },

		pointLights: { value: [], properties: {
			color: {},
			position: {},
			decay: {},
			distance: {}
		} },

		pointLightShadows: { value: [], properties: {
			shadowBias: {},
			shadowNormalBias: {},
			shadowRadius: {},
			shadowMapSize: {},
			shadowCameraNear: {},
			shadowCameraFar: {}
		} },

		pointShadowMap: { value: [] },
		pointShadowMatrix: { value: [] },

		hemisphereLights: { value: [], properties: {
			direction: {},
			skyColor: {},
			groundColor: {}
		} },

		// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
		rectAreaLights: { value: [], properties: {
			color: {},
			position: {},
			width: {},
			height: {}
		} },

		ltc_1: { value: null },
		ltc_2: { value: null }

	},

	points: {

		diffuse: { value: new Color( 0xffffff ) },
		opacity: { value: 1.0 },
		size: { value: 1.0 },
		scale: { value: 1.0 },
		map: { value: null },
		alphaMap: { value: null },
		alphaTest: { value: 0 },
		uvTransform: { value: new Matrix3() }

	},

	sprite: {

		diffuse: { value: new Color( 0xffffff ) },
		opacity: { value: 1.0 },
		center: { value: new Vector2( 0.5, 0.5 ) },
		rotation: { value: 0.0 },
		map: { value: null },
		alphaMap: { value: null },
		alphaTest: { value: 0 },
		uvTransform: { value: new Matrix3() }

	}

};

const ShaderLib = {

	basic: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.specularmap,
			UniformsLib.envmap,
			UniformsLib.aomap,
			UniformsLib.lightmap,
			UniformsLib.fog
		] ),

		vertexShader: ShaderChunk.meshbasic_vert,
		fragmentShader: ShaderChunk.meshbasic_frag

	},

	lambert: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.specularmap,
			UniformsLib.envmap,
			UniformsLib.aomap,
			UniformsLib.lightmap,
			UniformsLib.emissivemap,
			UniformsLib.fog,
			UniformsLib.lights,
			{
				emissive: { value: new Color( 0x000000 ) }
			}
		] ),

		vertexShader: ShaderChunk.meshlambert_vert,
		fragmentShader: ShaderChunk.meshlambert_frag

	},

	phong: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.specularmap,
			UniformsLib.envmap,
			UniformsLib.aomap,
			UniformsLib.lightmap,
			UniformsLib.emissivemap,
			UniformsLib.bumpmap,
			UniformsLib.normalmap,
			UniformsLib.displacementmap,
			UniformsLib.fog,
			UniformsLib.lights,
			{
				emissive: { value: new Color( 0x000000 ) },
				specular: { value: new Color( 0x111111 ) },
				shininess: { value: 30 }
			}
		] ),

		vertexShader: ShaderChunk.meshphong_vert,
		fragmentShader: ShaderChunk.meshphong_frag

	},

	standard: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.envmap,
			UniformsLib.aomap,
			UniformsLib.lightmap,
			UniformsLib.emissivemap,
			UniformsLib.bumpmap,
			UniformsLib.normalmap,
			UniformsLib.displacementmap,
			UniformsLib.roughnessmap,
			UniformsLib.metalnessmap,
			UniformsLib.fog,
			UniformsLib.lights,
			{
				emissive: { value: new Color( 0x000000 ) },
				roughness: { value: 1.0 },
				metalness: { value: 0.0 },
				envMapIntensity: { value: 1 } // temporary
			}
		] ),

		vertexShader: ShaderChunk.meshphysical_vert,
		fragmentShader: ShaderChunk.meshphysical_frag

	},

	toon: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.aomap,
			UniformsLib.lightmap,
			UniformsLib.emissivemap,
			UniformsLib.bumpmap,
			UniformsLib.normalmap,
			UniformsLib.displacementmap,
			UniformsLib.gradientmap,
			UniformsLib.fog,
			UniformsLib.lights,
			{
				emissive: { value: new Color( 0x000000 ) }
			}
		] ),

		vertexShader: ShaderChunk.meshtoon_vert,
		fragmentShader: ShaderChunk.meshtoon_frag

	},

	matcap: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.bumpmap,
			UniformsLib.normalmap,
			UniformsLib.displacementmap,
			UniformsLib.fog,
			{
				matcap: { value: null }
			}
		] ),

		vertexShader: ShaderChunk.meshmatcap_vert,
		fragmentShader: ShaderChunk.meshmatcap_frag

	},

	points: {

		uniforms: mergeUniforms( [
			UniformsLib.points,
			UniformsLib.fog
		] ),

		vertexShader: ShaderChunk.points_vert,
		fragmentShader: ShaderChunk.points_frag

	},

	dashed: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.fog,
			{
				scale: { value: 1 },
				dashSize: { value: 1 },
				totalSize: { value: 2 }
			}
		] ),

		vertexShader: ShaderChunk.linedashed_vert,
		fragmentShader: ShaderChunk.linedashed_frag

	},

	depth: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.displacementmap
		] ),

		vertexShader: ShaderChunk.depth_vert,
		fragmentShader: ShaderChunk.depth_frag

	},

	normal: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.bumpmap,
			UniformsLib.normalmap,
			UniformsLib.displacementmap,
			{
				opacity: { value: 1.0 }
			}
		] ),

		vertexShader: ShaderChunk.meshnormal_vert,
		fragmentShader: ShaderChunk.meshnormal_frag

	},

	sprite: {

		uniforms: mergeUniforms( [
			UniformsLib.sprite,
			UniformsLib.fog
		] ),

		vertexShader: ShaderChunk.sprite_vert,
		fragmentShader: ShaderChunk.sprite_frag

	},

	background: {

		uniforms: {
			uvTransform: { value: new Matrix3() },
			t2D: { value: null },
		},

		vertexShader: ShaderChunk.background_vert,
		fragmentShader: ShaderChunk.background_frag

	},
	/* -------------------------------------------------------------------------
	//	Cube map shader
	 ------------------------------------------------------------------------- */

	cube: {

		uniforms: mergeUniforms( [
			UniformsLib.envmap,
			{
				opacity: { value: 1.0 }
			}
		] ),

		vertexShader: ShaderChunk.cube_vert,
		fragmentShader: ShaderChunk.cube_frag

	},

	equirect: {

		uniforms: {
			tEquirect: { value: null },
		},

		vertexShader: ShaderChunk.equirect_vert,
		fragmentShader: ShaderChunk.equirect_frag

	},

	distanceRGBA: {

		uniforms: mergeUniforms( [
			UniformsLib.common,
			UniformsLib.displacementmap,
			{
				referencePosition: { value: new Vector3() },
				nearDistance: { value: 1 },
				farDistance: { value: 1000 }
			}
		] ),

		vertexShader: ShaderChunk.distanceRGBA_vert,
		fragmentShader: ShaderChunk.distanceRGBA_frag

	},

	shadow: {

		uniforms: mergeUniforms( [
			UniformsLib.lights,
			UniformsLib.fog,
			{
				color: { value: new Color( 0x00000 ) },
				opacity: { value: 1.0 }
			},
		] ),

		vertexShader: ShaderChunk.shadow_vert,
		fragmentShader: ShaderChunk.shadow_frag

	}

};

ShaderLib.physical = {

	uniforms: mergeUniforms( [
		ShaderLib.standard.uniforms,
		{
			clearcoat: { value: 0 },
			clearcoatMap: { value: null },
			clearcoatRoughness: { value: 0 },
			clearcoatRoughnessMap: { value: null },
			clearcoatNormalScale: { value: new Vector2( 1, 1 ) },
			clearcoatNormalMap: { value: null },
			sheen: { value: 0 },
			sheenColor: { value: new Color( 0x000000 ) },
			sheenColorMap: { value: null },
			sheenRoughness: { value: 1 },
			sheenRoughnessMap: { value: null },
			transmission: { value: 0 },
			transmissionMap: { value: null },
			transmissionSamplerSize: { value: new Vector2() },
			transmissionSamplerMap: { value: null },
			thickness: { value: 0 },
			thicknessMap: { value: null },
			attenuationDistance: { value: 0 },
			attenuationColor: { value: new Color( 0x000000 ) },
			specularIntensity: { value: 1 },
			specularIntensityMap: { value: null },
			specularColor: { value: new Color( 1, 1, 1 ) },
			specularColorMap: { value: null },
		}
	] ),

	vertexShader: ShaderChunk.meshphysical_vert,
	fragmentShader: ShaderChunk.meshphysical_frag

};

function WebGLBackground( renderer, cubemaps, state, objects, alpha, premultipliedAlpha ) {

	const clearColor = new Color( 0x000000 );
	let clearAlpha = alpha === true ? 0 : 1;

	let planeMesh;
	let boxMesh;

	let currentBackground = null;
	let currentBackgroundVersion = 0;
	let currentTonemapping = null;

	function render( renderList, scene ) {

		let forceClear = false;
		let background = scene.isScene === true ? scene.background : null;

		if ( background && background.isTexture ) {

			background = cubemaps.get( background );

		}

		// Ignore background in AR
		// TODO: Reconsider this.

		const xr = renderer.xr;
		const session = xr.getSession && xr.getSession();

		if ( session && session.environmentBlendMode === 'additive' ) {

			background = null;

		}

		if ( background === null ) {

			setClear( clearColor, clearAlpha );

		} else if ( background && background.isColor ) {

			setClear( background, 1 );
			forceClear = true;

		}

		if ( renderer.autoClear || forceClear ) {

			renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );

		}

		if ( background && ( background.isCubeTexture || background.mapping === CubeUVReflectionMapping ) ) {

			if ( boxMesh === undefined ) {

				boxMesh = new Mesh(
					new BoxGeometry( 1, 1, 1 ),
					new ShaderMaterial( {
						name: 'BackgroundCubeMaterial',
						uniforms: cloneUniforms( ShaderLib.cube.uniforms ),
						vertexShader: ShaderLib.cube.vertexShader,
						fragmentShader: ShaderLib.cube.fragmentShader,
						side: BackSide,
						depthTest: false,
						depthWrite: false,
						fog: false
					} )
				);

				boxMesh.geometry.deleteAttribute( 'normal' );
				boxMesh.geometry.deleteAttribute( 'uv' );

				boxMesh.onBeforeRender = function ( renderer, scene, camera ) {

					this.matrixWorld.copyPosition( camera.matrixWorld );

				};

				// enable code injection for non-built-in material
				Object.defineProperty( boxMesh.material, 'envMap', {

					get: function () {

						return this.uniforms.envMap.value;

					}

				} );

				objects.update( boxMesh );

			}

			boxMesh.material.uniforms.envMap.value = background;
			boxMesh.material.uniforms.flipEnvMap.value = ( background.isCubeTexture && background.isRenderTargetTexture === false ) ? - 1 : 1;

			if ( currentBackground !== background ||
				currentBackgroundVersion !== background.version ||
				currentTonemapping !== renderer.toneMapping ) {

				boxMesh.material.needsUpdate = true;

				currentBackground = background;
				currentBackgroundVersion = background.version;
				currentTonemapping = renderer.toneMapping;

			}

			// push to the pre-sorted opaque render list
			renderList.unshift( boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null );

		} else if ( background && background.isTexture ) {

			if ( planeMesh === undefined ) {

				planeMesh = new Mesh(
					new PlaneGeometry( 2, 2 ),
					new ShaderMaterial( {
						name: 'BackgroundMaterial',
						uniforms: cloneUniforms( ShaderLib.background.uniforms ),
						vertexShader: ShaderLib.background.vertexShader,
						fragmentShader: ShaderLib.background.fragmentShader,
						side: FrontSide,
						depthTest: false,
						depthWrite: false,
						fog: false
					} )
				);

				planeMesh.geometry.deleteAttribute( 'normal' );

				// enable code injection for non-built-in material
				Object.defineProperty( planeMesh.material, 'map', {

					get: function () {

						return this.uniforms.t2D.value;

					}

				} );

				objects.update( planeMesh );

			}

			planeMesh.material.uniforms.t2D.value = background;

			if ( background.matrixAutoUpdate === true ) {

				background.updateMatrix();

			}

			planeMesh.material.uniforms.uvTransform.value.copy( background.matrix );

			if ( currentBackground !== background ||
				currentBackgroundVersion !== background.version ||
				currentTonemapping !== renderer.toneMapping ) {

				planeMesh.material.needsUpdate = true;

				currentBackground = background;
				currentBackgroundVersion = background.version;
				currentTonemapping = renderer.toneMapping;

			}


			// push to the pre-sorted opaque render list
			renderList.unshift( planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null );

		}

	}

	function setClear( color, alpha ) {

		state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );

	}

	return {

		getClearColor: function () {

			return clearColor;

		},
		setClearColor: function ( color, alpha = 1 ) {

			clearColor.set( color );
			clearAlpha = alpha;
			setClear( clearColor, clearAlpha );

		},
		getClearAlpha: function () {

			return clearAlpha;

		},
		setClearAlpha: function ( alpha ) {

			clearAlpha = alpha;
			setClear( clearColor, clearAlpha );

		},
		render: render

	};

}

function WebGLBindingStates( gl, extensions, attributes, capabilities ) {

	const maxVertexAttributes = gl.getParameter( 34921 );

	const extension = capabilities.isWebGL2 ? null : extensions.get( 'OES_vertex_array_object' );
	const vaoAvailable = capabilities.isWebGL2 || extension !== null;

	const bindingStates = {};

	const defaultState = createBindingState( null );
	let currentState = defaultState;

	function setup( object, material, program, geometry, index ) {

		let updateBuffers = false;

		if ( vaoAvailable ) {

			const state = getBindingState( geometry, program, material );

			if ( currentState !== state ) {

				currentState = state;
				bindVertexArrayObject( currentState.object );

			}

			updateBuffers = needsUpdate( geometry, index );

			if ( updateBuffers ) saveCache( geometry, index );

		} else {

			const wireframe = ( material.wireframe === true );

			if ( currentState.geometry !== geometry.id ||
				currentState.program !== program.id ||
				currentState.wireframe !== wireframe ) {

				currentState.geometry = geometry.id;
				currentState.program = program.id;
				currentState.wireframe = wireframe;

				updateBuffers = true;

			}

		}

		if ( object.isInstancedMesh === true ) {

			updateBuffers = true;

		}

		if ( index !== null ) {

			attributes.update( index, 34963 );

		}

		if ( updateBuffers ) {

			setupVertexAttributes( object, material, program, geometry );

			if ( index !== null ) {

				gl.bindBuffer( 34963, attributes.get( index ).buffer );

			}

		}

	}

	function createVertexArrayObject() {

		if ( capabilities.isWebGL2 ) return gl.createVertexArray();

		return extension.createVertexArrayOES();

	}

	function bindVertexArrayObject( vao ) {

		if ( capabilities.isWebGL2 ) return gl.bindVertexArray( vao );

		return extension.bindVertexArrayOES( vao );

	}

	function deleteVertexArrayObject( vao ) {

		if ( capabilities.isWebGL2 ) return gl.deleteVertexArray( vao );

		return extension.deleteVertexArrayOES( vao );

	}

	function getBindingState( geometry, program, material ) {

		const wireframe = ( material.wireframe === true );

		let programMap = bindingStates[ geometry.id ];

		if ( programMap === undefined ) {

			programMap = {};
			bindingStates[ geometry.id ] = programMap;

		}

		let stateMap = programMap[ program.id ];

		if ( stateMap === undefined ) {

			stateMap = {};
			programMap[ program.id ] = stateMap;

		}

		let state = stateMap[ wireframe ];

		if ( state === undefined ) {

			state = createBindingState( createVertexArrayObject() );
			stateMap[ wireframe ] = state;

		}

		return state;

	}

	function createBindingState( vao ) {

		const newAttributes = [];
		const enabledAttributes = [];
		const attributeDivisors = [];

		for ( let i = 0; i < maxVertexAttributes; i ++ ) {

			newAttributes[ i ] = 0;
			enabledAttributes[ i ] = 0;
			attributeDivisors[ i ] = 0;

		}

		return {

			// for backward compatibility on non-VAO support browser
			geometry: null,
			program: null,
			wireframe: false,

			newAttributes: newAttributes,
			enabledAttributes: enabledAttributes,
			attributeDivisors: attributeDivisors,
			object: vao,
			attributes: {},
			index: null

		};

	}

	function needsUpdate( geometry, index ) {

		const cachedAttributes = currentState.attributes;
		const geometryAttributes = geometry.attributes;

		let attributesNum = 0;

		for ( const key in geometryAttributes ) {

			const cachedAttribute = cachedAttributes[ key ];
			const geometryAttribute = geometryAttributes[ key ];

			if ( cachedAttribute === undefined ) return true;

			if ( cachedAttribute.attribute !== geometryAttribute ) return true;

			if ( cachedAttribute.data !== geometryAttribute.data ) return true;

			attributesNum ++;

		}

		if ( currentState.attributesNum !== attributesNum ) return true;

		if ( currentState.index !== index ) return true;

		return false;

	}

	function saveCache( geometry, index ) {

		const cache = {};
		const attributes = geometry.attributes;
		let attributesNum = 0;

		for ( const key in attributes ) {

			const attribute = attributes[ key ];

			const data = {};
			data.attribute = attribute;

			if ( attribute.data ) {

				data.data = attribute.data;

			}

			cache[ key ] = data;

			attributesNum ++;

		}

		currentState.attributes = cache;
		currentState.attributesNum = attributesNum;

		currentState.index = index;

	}

	function initAttributes() {

		const newAttributes = currentState.newAttributes;

		for ( let i = 0, il = newAttributes.length; i < il; i ++ ) {

			newAttributes[ i ] = 0;

		}

	}

	function enableAttribute( attribute ) {

		enableAttributeAndDivisor( attribute, 0 );

	}

	function enableAttributeAndDivisor( attribute, meshPerAttribute ) {

		const newAttributes = currentState.newAttributes;
		const enabledAttributes = currentState.enabledAttributes;
		const attributeDivisors = currentState.attributeDivisors;

		newAttributes[ attribute ] = 1;

		if ( enabledAttributes[ attribute ] === 0 ) {

			gl.enableVertexAttribArray( attribute );
			enabledAttributes[ attribute ] = 1;

		}

		if ( attributeDivisors[ attribute ] !== meshPerAttribute ) {

			const extension = capabilities.isWebGL2 ? gl : extensions.get( 'ANGLE_instanced_arrays' );

			extension[ capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE' ]( attribute, meshPerAttribute );
			attributeDivisors[ attribute ] = meshPerAttribute;

		}

	}

	function disableUnusedAttributes() {

		const newAttributes = currentState.newAttributes;
		const enabledAttributes = currentState.enabledAttributes;

		for ( let i = 0, il = enabledAttributes.length; i < il; i ++ ) {

			if ( enabledAttributes[ i ] !== newAttributes[ i ] ) {

				gl.disableVertexAttribArray( i );
				enabledAttributes[ i ] = 0;

			}

		}

	}

	function vertexAttribPointer( index, size, type, normalized, stride, offset ) {

		if ( capabilities.isWebGL2 === true && ( type === 5124 || type === 5125 ) ) {

			gl.vertexAttribIPointer( index, size, type, stride, offset );

		} else {

			gl.vertexAttribPointer( index, size, type, normalized, stride, offset );

		}

	}

	function setupVertexAttributes( object, material, program, geometry ) {

		if ( capabilities.isWebGL2 === false && ( object.isInstancedMesh || geometry.isInstancedBufferGeometry ) ) {

			if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) return;

		}

		initAttributes();

		const geometryAttributes = geometry.attributes;

		const programAttributes = program.getAttributes();

		const materialDefaultAttributeValues = material.defaultAttributeValues;

		for ( const name in programAttributes ) {

			const programAttribute = programAttributes[ name ];

			if ( programAttribute.location >= 0 ) {

				let geometryAttribute = geometryAttributes[ name ];

				if ( geometryAttribute === undefined ) {

					if ( name === 'instanceMatrix' && object.instanceMatrix ) geometryAttribute = object.instanceMatrix;
					if ( name === 'instanceColor' && object.instanceColor ) geometryAttribute = object.instanceColor;

				}

				if ( geometryAttribute !== undefined ) {

					const normalized = geometryAttribute.normalized;
					const size = geometryAttribute.itemSize;

					const attribute = attributes.get( geometryAttribute );

					// TODO Attribute may not be available on context restore

					if ( attribute === undefined ) continue;

					const buffer = attribute.buffer;
					const type = attribute.type;
					const bytesPerElement = attribute.bytesPerElement;

					if ( geometryAttribute.isInterleavedBufferAttribute ) {

						const data = geometryAttribute.data;
						const stride = data.stride;
						const offset = geometryAttribute.offset;

						if ( data && data.isInstancedInterleavedBuffer ) {

							for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

								enableAttributeAndDivisor( programAttribute.location + i, data.meshPerAttribute );

							}

							if ( object.isInstancedMesh !== true && geometry._maxInstanceCount === undefined ) {

								geometry._maxInstanceCount = data.meshPerAttribute * data.count;

							}

						} else {

							for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

								enableAttribute( programAttribute.location + i );

							}

						}

						gl.bindBuffer( 34962, buffer );

						for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

							vertexAttribPointer(
								programAttribute.location + i,
								size / programAttribute.locationSize,
								type,
								normalized,
								stride * bytesPerElement,
								( offset + ( size / programAttribute.locationSize ) * i ) * bytesPerElement
							);

						}

					} else {

						if ( geometryAttribute.isInstancedBufferAttribute ) {

							for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

								enableAttributeAndDivisor( programAttribute.location + i, geometryAttribute.meshPerAttribute );

							}

							if ( object.isInstancedMesh !== true && geometry._maxInstanceCount === undefined ) {

								geometry._maxInstanceCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;

							}

						} else {

							for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

								enableAttribute( programAttribute.location + i );

							}

						}

						gl.bindBuffer( 34962, buffer );

						for ( let i = 0; i < programAttribute.locationSize; i ++ ) {

							vertexAttribPointer(
								programAttribute.location + i,
								size / programAttribute.locationSize,
								type,
								normalized,
								size * bytesPerElement,
								( size / programAttribute.locationSize ) * i * bytesPerElement
							);

						}

					}

				} else if ( materialDefaultAttributeValues !== undefined ) {

					const value = materialDefaultAttributeValues[ name ];

					if ( value !== undefined ) {

						switch ( value.length ) {

							case 2:
								gl.vertexAttrib2fv( programAttribute.location, value );
								break;

							case 3:
								gl.vertexAttrib3fv( programAttribute.location, value );
								break;

							case 4:
								gl.vertexAttrib4fv( programAttribute.location, value );
								break;

							default:
								gl.vertexAttrib1fv( programAttribute.location, value );

						}

					}

				}

			}

		}

		disableUnusedAttributes();

	}

	function dispose() {

		reset();

		for ( const geometryId in bindingStates ) {

			const programMap = bindingStates[ geometryId ];

			for ( const programId in programMap ) {

				const stateMap = programMap[ programId ];

				for ( const wireframe in stateMap ) {

					deleteVertexArrayObject( stateMap[ wireframe ].object );

					delete stateMap[ wireframe ];

				}

				delete programMap[ programId ];

			}

			delete bindingStates[ geometryId ];

		}

	}

	function releaseStatesOfGeometry( geometry ) {

		if ( bindingStates[ geometry.id ] === undefined ) return;

		const programMap = bindingStates[ geometry.id ];

		for ( const programId in programMap ) {

			const stateMap = programMap[ programId ];

			for ( const wireframe in stateMap ) {

				deleteVertexArrayObject( stateMap[ wireframe ].object );

				delete stateMap[ wireframe ];

			}

			delete programMap[ programId ];

		}

		delete bindingStates[ geometry.id ];

	}

	function releaseStatesOfProgram( program ) {

		for ( const geometryId in bindingStates ) {

			const programMap = bindingStates[ geometryId ];

			if ( programMap[ program.id ] === undefined ) continue;

			const stateMap = programMap[ program.id ];

			for ( const wireframe in stateMap ) {

				deleteVertexArrayObject( stateMap[ wireframe ].object );

				delete stateMap[ wireframe ];

			}

			delete programMap[ program.id ];

		}

	}

	function reset() {

		resetDefaultState();

		if ( currentState === defaultState ) return;

		currentState = defaultState;
		bindVertexArrayObject( currentState.object );

	}

	// for backward-compatilibity

	function resetDefaultState() {

		defaultState.geometry = null;
		defaultState.program = null;
		defaultState.wireframe = false;

	}

	return {

		setup: setup,
		reset: reset,
		resetDefaultState: resetDefaultState,
		dispose: dispose,
		releaseStatesOfGeometry: releaseStatesOfGeometry,
		releaseStatesOfProgram: releaseStatesOfProgram,

		initAttributes: initAttributes,
		enableAttribute: enableAttribute,
		disableUnusedAttributes: disableUnusedAttributes

	};

}

function WebGLBufferRenderer( gl, extensions, info, capabilities ) {

	const isWebGL2 = capabilities.isWebGL2;

	let mode;

	function setMode( value ) {

		mode = value;

	}

	function render( start, count ) {

		gl.drawArrays( mode, start, count );

		info.update( count, mode, 1 );

	}

	function renderInstances( start, count, primcount ) {

		if ( primcount === 0 ) return;

		let extension, methodName;

		if ( isWebGL2 ) {

			extension = gl;
			methodName = 'drawArraysInstanced';

		} else {

			extension = extensions.get( 'ANGLE_instanced_arrays' );
			methodName = 'drawArraysInstancedANGLE';

			if ( extension === null ) {

				console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
				return;

			}

		}

		extension[ methodName ]( mode, start, count, primcount );

		info.update( count, mode, primcount );

	}

	//

	this.setMode = setMode;
	this.render = render;
	this.renderInstances = renderInstances;

}

function WebGLCapabilities( gl, extensions, parameters ) {

	let maxAnisotropy;

	function getMaxAnisotropy() {

		if ( maxAnisotropy !== undefined ) return maxAnisotropy;

		if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) {

			const extension = extensions.get( 'EXT_texture_filter_anisotropic' );

			maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );

		} else {

			maxAnisotropy = 0;

		}

		return maxAnisotropy;

	}

	function getMaxPrecision( precision ) {

		if ( precision === 'highp' ) {

			if ( gl.getShaderPrecisionFormat( 35633, 36338 ).precision > 0 &&
				gl.getShaderPrecisionFormat( 35632, 36338 ).precision > 0 ) {

				return 'highp';

			}

			precision = 'mediump';

		}

		if ( precision === 'mediump' ) {

			if ( gl.getShaderPrecisionFormat( 35633, 36337 ).precision > 0 &&
				gl.getShaderPrecisionFormat( 35632, 36337 ).precision > 0 ) {

				return 'mediump';

			}

		}

		return 'lowp';

	}

	const isWebGL2 = ( typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext ) ||
		( typeof WebGL2ComputeRenderingContext !== 'undefined' && gl instanceof WebGL2ComputeRenderingContext );

	let precision = parameters.precision !== undefined ? parameters.precision : 'highp';
	const maxPrecision = getMaxPrecision( precision );

	if ( maxPrecision !== precision ) {

		console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );
		precision = maxPrecision;

	}

	const drawBuffers = isWebGL2 || extensions.has( 'WEBGL_draw_buffers' );

	const logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;

	const maxTextures = gl.getParameter( 34930 );
	const maxVertexTextures = gl.getParameter( 35660 );
	const maxTextureSize = gl.getParameter( 3379 );
	const maxCubemapSize = gl.getParameter( 34076 );

	const maxAttributes = gl.getParameter( 34921 );
	const maxVertexUniforms = gl.getParameter( 36347 );
	const maxVaryings = gl.getParameter( 36348 );
	const maxFragmentUniforms = gl.getParameter( 36349 );

	const vertexTextures = maxVertexTextures > 0;
	const floatFragmentTextures = isWebGL2 || extensions.has( 'OES_texture_float' );
	const floatVertexTextures = vertexTextures && floatFragmentTextures;

	const maxSamples = isWebGL2 ? gl.getParameter( 36183 ) : 0;

	return {

		isWebGL2: isWebGL2,

		drawBuffers: drawBuffers,

		getMaxAnisotropy: getMaxAnisotropy,
		getMaxPrecision: getMaxPrecision,

		precision: precision,
		logarithmicDepthBuffer: logarithmicDepthBuffer,

		maxTextures: maxTextures,
		maxVertexTextures: maxVertexTextures,
		maxTextureSize: maxTextureSize,
		maxCubemapSize: maxCubemapSize,

		maxAttributes: maxAttributes,
		maxVertexUniforms: maxVertexUniforms,
		maxVaryings: maxVaryings,
		maxFragmentUniforms: maxFragmentUniforms,

		vertexTextures: vertexTextures,
		floatFragmentTextures: floatFragmentTextures,
		floatVertexTextures: floatVertexTextures,

		maxSamples: maxSamples

	};

}

function WebGLClipping( properties ) {

	const scope = this;

	let globalState = null,
		numGlobalPlanes = 0,
		localClippingEnabled = false,
		renderingShadows = false;

	const plane = new Plane(),
		viewNormalMatrix = new Matrix3(),

		uniform = { value: null, needsUpdate: false };

	this.uniform = uniform;
	this.numPlanes = 0;
	this.numIntersection = 0;

	this.init = function ( planes, enableLocalClipping, camera ) {

		const enabled =
			planes.length !== 0 ||
			enableLocalClipping ||
			// enable state of previous frame - the clipping code has to
			// run another frame in order to reset the state:
			numGlobalPlanes !== 0 ||
			localClippingEnabled;

		localClippingEnabled = enableLocalClipping;

		globalState = projectPlanes( planes, camera, 0 );
		numGlobalPlanes = planes.length;

		return enabled;

	};

	this.beginShadows = function () {

		renderingShadows = true;
		projectPlanes( null );

	};

	this.endShadows = function () {

		renderingShadows = false;
		resetGlobalState();

	};

	this.setState = function ( material, camera, useCache ) {

		const planes = material.clippingPlanes,
			clipIntersection = material.clipIntersection,
			clipShadows = material.clipShadows;

		const materialProperties = properties.get( material );

		if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {

			// there's no local clipping

			if ( renderingShadows ) {

				// there's no global clipping

				projectPlanes( null );

			} else {

				resetGlobalState();

			}

		} else {

			const nGlobal = renderingShadows ? 0 : numGlobalPlanes,
				lGlobal = nGlobal * 4;

			let dstArray = materialProperties.clippingState || null;

			uniform.value = dstArray; // ensure unique state

			dstArray = projectPlanes( planes, camera, lGlobal, useCache );

			for ( let i = 0; i !== lGlobal; ++ i ) {

				dstArray[ i ] = globalState[ i ];

			}

			materialProperties.clippingState = dstArray;
			this.numIntersection = clipIntersection ? this.numPlanes : 0;
			this.numPlanes += nGlobal;

		}


	};

	function resetGlobalState() {

		if ( uniform.value !== globalState ) {

			uniform.value = globalState;
			uniform.needsUpdate = numGlobalPlanes > 0;

		}

		scope.numPlanes = numGlobalPlanes;
		scope.numIntersection = 0;

	}

	function projectPlanes( planes, camera, dstOffset, skipTransform ) {

		const nPlanes = planes !== null ? planes.length : 0;
		let dstArray = null;

		if ( nPlanes !== 0 ) {

			dstArray = uniform.value;

			if ( skipTransform !== true || dstArray === null ) {

				const flatSize = dstOffset + nPlanes * 4,
					viewMatrix = camera.matrixWorldInverse;

				viewNormalMatrix.getNormalMatrix( viewMatrix );

				if ( dstArray === null || dstArray.length < flatSize ) {

					dstArray = new Float32Array( flatSize );

				}

				for ( let i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {

					plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );

					plane.normal.toArray( dstArray, i4 );
					dstArray[ i4 + 3 ] = plane.constant;

				}

			}

			uniform.value = dstArray;
			uniform.needsUpdate = true;

		}

		scope.numPlanes = nPlanes;
		scope.numIntersection = 0;

		return dstArray;

	}

}

function WebGLCubeMaps( renderer ) {

	let cubemaps = new WeakMap();

	function mapTextureMapping( texture, mapping ) {

		if ( mapping === EquirectangularReflectionMapping ) {

			texture.mapping = CubeReflectionMapping;

		} else if ( mapping === EquirectangularRefractionMapping ) {

			texture.mapping = CubeRefractionMapping;

		}

		return texture;

	}

	function get( texture ) {

		if ( texture && texture.isTexture && texture.isRenderTargetTexture === false ) {

			const mapping = texture.mapping;

			if ( mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping ) {

				if ( cubemaps.has( texture ) ) {

					const cubemap = cubemaps.get( texture ).texture;
					return mapTextureMapping( cubemap, texture.mapping );

				} else {

					const image = texture.image;

					if ( image && image.height > 0 ) {

						const renderTarget = new WebGLCubeRenderTarget( image.height / 2 );
						renderTarget.fromEquirectangularTexture( renderer, texture );
						cubemaps.set( texture, renderTarget );

						texture.addEventListener( 'dispose', onTextureDispose );

						return mapTextureMapping( renderTarget.texture, texture.mapping );

					} else {

						// image not yet ready. try the conversion next frame

						return null;

					}

				}

			}

		}

		return texture;

	}

	function onTextureDispose( event ) {

		const texture = event.target;

		texture.removeEventListener( 'dispose', onTextureDispose );

		const cubemap = cubemaps.get( texture );

		if ( cubemap !== undefined ) {

			cubemaps.delete( texture );
			cubemap.dispose();

		}

	}

	function dispose() {

		cubemaps = new WeakMap();

	}

	return {
		get: get,
		dispose: dispose
	};

}

class OrthographicCamera extends Camera {

	constructor( left = - 1, right = 1, top = 1, bottom = - 1, near = 0.1, far = 2000 ) {

		super();

		this.type = 'OrthographicCamera';

		this.zoom = 1;
		this.view = null;

		this.left = left;
		this.right = right;
		this.top = top;
		this.bottom = bottom;

		this.near = near;
		this.far = far;

		this.updateProjectionMatrix();

	}

	copy( source, recursive ) {

		super.copy( source, recursive );

		this.left = source.left;
		this.right = source.right;
		this.top = source.top;
		this.bottom = source.bottom;
		this.near = source.near;
		this.far = source.far;

		this.zoom = source.zoom;
		this.view = source.view === null ? null : Object.assign( {}, source.view );

		return this;

	}

	setViewOffset( fullWidth, fullHeight, x, y, width, height ) {

		if ( this.view === null ) {

			this.view = {
				enabled: true,
				fullWidth: 1,
				fullHeight: 1,
				offsetX: 0,
				offsetY: 0,
				width: 1,
				height: 1
			};

		}

		this.view.enabled = true;
		this.view.fullWidth = fullWidth;
		this.view.fullHeight = fullHeight;
		this.view.offsetX = x;
		this.view.offsetY = y;
		this.view.width = width;
		this.view.height = height;

		this.updateProjectionMatrix();

	}

	clearViewOffset() {

		if ( this.view !== null ) {

			this.view.enabled = false;

		}

		this.updateProjectionMatrix();

	}

	updateProjectionMatrix() {

		const dx = ( this.right - this.left ) / ( 2 * this.zoom );
		const dy = ( this.top - this.bottom ) / ( 2 * this.zoom );
		const cx = ( this.right + this.left ) / 2;
		const cy = ( this.top + this.bottom ) / 2;

		let left = cx - dx;
		let right = cx + dx;
		let top = cy + dy;
		let bottom = cy - dy;

		if ( this.view !== null && this.view.enabled ) {

			const scaleW = ( this.right - this.left ) / this.view.fullWidth / this.zoom;
			const scaleH = ( this.top - this.bottom ) / this.view.fullHeight / this.zoom;

			left += scaleW * this.view.offsetX;
			right = left + scaleW * this.view.width;
			top -= scaleH * this.view.offsetY;
			bottom = top - scaleH * this.view.height;

		}

		this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );

		this.projectionMatrixInverse.copy( this.projectionMatrix ).invert();

	}

	toJSON( meta ) {

		const data = super.toJSON( meta );

		data.object.zoom = this.zoom;
		data.object.left = this.left;
		data.object.right = this.right;
		data.object.top = this.top;
		data.object.bottom = this.bottom;
		data.object.near = this.near;
		data.object.far = this.far;

		if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );

		return data;

	}

}

OrthographicCamera.prototype.isOrthographicCamera = true;

class RawShaderMaterial extends ShaderMaterial {

	constructor( parameters ) {

		super( parameters );

		this.type = 'RawShaderMaterial';

	}

}

RawShaderMaterial.prototype.isRawShaderMaterial = true;

const LOD_MIN = 4;
const LOD_MAX = 8;
const SIZE_MAX = Math.pow( 2, LOD_MAX );

// The standard deviations (radians) associated with the extra mips. These are
// chosen to approximate a Trowbridge-Reitz distribution function times the
// geometric shadowing function. These sigma values squared must match the
// variance #defines in cube_uv_reflection_fragment.glsl.js.
const EXTRA_LOD_SIGMA = [ 0.125, 0.215, 0.35, 0.446, 0.526, 0.582 ];

const TOTAL_LODS = LOD_MAX - LOD_MIN + 1 + EXTRA_LOD_SIGMA.length;

// The maximum length of the blur for loop. Smaller sigmas will use fewer
// samples and exit early, but not recompile the shader.
const MAX_SAMPLES = 20;

const _flatCamera = /*@__PURE__*/ new OrthographicCamera();
const { _lodPlanes, _sizeLods, _sigmas } = /*@__PURE__*/ _createPlanes();
const _clearColor = /*@__PURE__*/ new Color();
let _oldTarget = null;

// Golden Ratio
const PHI = ( 1 + Math.sqrt( 5 ) ) / 2;
const INV_PHI = 1 / PHI;

// Vertices of a dodecahedron (except the opposites, which represent the
// same axis), used as axis directions evenly spread on a sphere.
const _axisDirections = [
	/*@__PURE__*/ new Vector3( 1, 1, 1 ),
	/*@__PURE__*/ new Vector3( - 1, 1, 1 ),
	/*@__PURE__*/ new Vector3( 1, 1, - 1 ),
	/*@__PURE__*/ new Vector3( - 1, 1, - 1 ),
	/*@__PURE__*/ new Vector3( 0, PHI, INV_PHI ),
	/*@__PURE__*/ new Vector3( 0, PHI, - INV_PHI ),
	/*@__PURE__*/ new Vector3( INV_PHI, 0, PHI ),
	/*@__PURE__*/ new Vector3( - INV_PHI, 0, PHI ),
	/*@__PURE__*/ new Vector3( PHI, INV_PHI, 0 ),
	/*@__PURE__*/ new Vector3( - PHI, INV_PHI, 0 ) ];

/**
 * This class generates a Prefiltered, Mipmapped Radiance Environment Map
 * (PMREM) from a cubeMap environment texture. This allows different levels of
 * blur to be quickly accessed based on material roughness. It is packed into a
 * special CubeUV format that allows us to perform custom interpolation so that
 * we can support nonlinear formats such as RGBE. Unlike a traditional mipmap
 * chain, it only goes down to the LOD_MIN level (above), and then creates extra
 * even more filtered 'mips' at the same LOD_MIN resolution, associated with
 * higher roughness levels. In this way we maintain resolution to smoothly
 * interpolate diffuse lighting while limiting sampling computation.
 *
 * Paper: Fast, Accurate Image-Based Lighting
 * https://drive.google.com/file/d/15y8r_UpKlU9SvV4ILb0C3qCPecS8pvLz/view
*/

class PMREMGenerator {

	constructor( renderer ) {

		this._renderer = renderer;
		this._pingPongRenderTarget = null;

		this._blurMaterial = _getBlurShader( MAX_SAMPLES );
		this._equirectShader = null;
		this._cubemapShader = null;

		this._compileMaterial( this._blurMaterial );

	}

	/**
	 * Generates a PMREM from a supplied Scene, which can be faster than using an
	 * image if networking bandwidth is low. Optional sigma specifies a blur radius
	 * in radians to be applied to the scene before PMREM generation. Optional near
	 * and far planes ensure the scene is rendered in its entirety (the cubeCamera
	 * is placed at the origin).
	 */
	fromScene( scene, sigma = 0, near = 0.1, far = 100 ) {

		_oldTarget = this._renderer.getRenderTarget();
		const cubeUVRenderTarget = this._allocateTargets();

		this._sceneToCubeUV( scene, near, far, cubeUVRenderTarget );
		if ( sigma > 0 ) {

			this._blur( cubeUVRenderTarget, 0, 0, sigma );

		}

		this._applyPMREM( cubeUVRenderTarget );
		this._cleanup( cubeUVRenderTarget );

		return cubeUVRenderTarget;

	}

	/**
	 * Generates a PMREM from an equirectangular texture, which can be either LDR
	 * or HDR. The ideal input image size is 1k (1024 x 512),
	 * as this matches best with the 256 x 256 cubemap output.
	 */
	fromEquirectangular( equirectangular, renderTarget = null ) {

		return this._fromTexture( equirectangular, renderTarget );

	}

	/**
	 * Generates a PMREM from an cubemap texture, which can be either LDR
	 * or HDR. The ideal input cube size is 256 x 256,
	 * as this matches best with the 256 x 256 cubemap output.
	 */
	fromCubemap( cubemap, renderTarget = null ) {

		return this._fromTexture( cubemap, renderTarget );

	}

	/**
	 * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during
	 * your texture's network fetch for increased concurrency.
	 */
	compileCubemapShader() {

		if ( this._cubemapShader === null ) {

			this._cubemapShader = _getCubemapShader();
			this._compileMaterial( this._cubemapShader );

		}

	}

	/**
	 * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during
	 * your texture's network fetch for increased concurrency.
	 */
	compileEquirectangularShader() {

		if ( this._equirectShader === null ) {

			this._equirectShader = _getEquirectShader();
			this._compileMaterial( this._equirectShader );

		}

	}

	/**
	 * Disposes of the PMREMGenerator's internal memory. Note that PMREMGenerator is a static class,
	 * so you should not need more than one PMREMGenerator object. If you do, calling dispose() on
	 * one of them will cause any others to also become unusable.
	 */
	dispose() {

		this._blurMaterial.dispose();

		if ( this._pingPongRenderTarget !== null ) this._pingPongRenderTarget.dispose();

		if ( this._cubemapShader !== null ) this._cubemapShader.dispose();
		if ( this._equirectShader !== null ) this._equirectShader.dispose();

		for ( let i = 0; i < _lodPlanes.length; i ++ ) {

			_lodPlanes[ i ].dispose();

		}

	}

	// private interface

	_cleanup( outputTarget ) {

		this._renderer.setRenderTarget( _oldTarget );
		outputTarget.scissorTest = false;
		_setViewport( outputTarget, 0, 0, outputTarget.width, outputTarget.height );

	}

	_fromTexture( texture, renderTarget ) {

		_oldTarget = this._renderer.getRenderTarget();
		const cubeUVRenderTarget = renderTarget || this._allocateTargets( texture );
		this._textureToCubeUV( texture, cubeUVRenderTarget );
		this._applyPMREM( cubeUVRenderTarget );
		this._cleanup( cubeUVRenderTarget );

		return cubeUVRenderTarget;

	}

	_allocateTargets( texture ) { // warning: null texture is valid

		const params = {
			magFilter: LinearFilter,
			minFilter: LinearFilter,
			generateMipmaps: false,
			type: HalfFloatType,
			format: RGBAFormat,
			encoding: LinearEncoding,
			depthBuffer: false
		};

		const cubeUVRenderTarget = _createRenderTarget( params );
		cubeUVRenderTarget.depthBuffer = texture ? false : true;

		if ( this._pingPongRenderTarget === null ) {

			this._pingPongRenderTarget = _createRenderTarget( params );

		}

		return cubeUVRenderTarget;

	}

	_compileMaterial( material ) {

		const tmpMesh = new Mesh( _lodPlanes[ 0 ], material );
		this._renderer.compile( tmpMesh, _flatCamera );

	}

	_sceneToCubeUV( scene, near, far, cubeUVRenderTarget ) {

		const fov = 90;
		const aspect = 1;
		const cubeCamera = new PerspectiveCamera( fov, aspect, near, far );
		const upSign = [ 1, - 1, 1, 1, 1, 1 ];
		const forwardSign = [ 1, 1, 1, - 1, - 1, - 1 ];
		const renderer = this._renderer;

		const originalAutoClear = renderer.autoClear;
		const toneMapping = renderer.toneMapping;
		renderer.getClearColor( _clearColor );

		renderer.toneMapping = NoToneMapping;
		renderer.autoClear = false;

		const backgroundMaterial = new MeshBasicMaterial( {
			name: 'PMREM.Background',
			side: BackSide,
			depthWrite: false,
			depthTest: false,
		} );

		const backgroundBox = new Mesh( new BoxGeometry(), backgroundMaterial );

		let useSolidColor = false;
		const background = scene.background;

		if ( background ) {

			if ( background.isColor ) {

				backgroundMaterial.color.copy( background );
				scene.background = null;
				useSolidColor = true;

			}

		} else {

			backgroundMaterial.color.copy( _clearColor );
			useSolidColor = true;

		}

		for ( let i = 0; i < 6; i ++ ) {

			const col = i % 3;
			if ( col === 0 ) {

				cubeCamera.up.set( 0, upSign[ i ], 0 );
				cubeCamera.lookAt( forwardSign[ i ], 0, 0 );

			} else if ( col === 1 ) {

				cubeCamera.up.set( 0, 0, upSign[ i ] );
				cubeCamera.lookAt( 0, forwardSign[ i ], 0 );

			} else {

				cubeCamera.up.set( 0, upSign[ i ], 0 );
				cubeCamera.lookAt( 0, 0, forwardSign[ i ] );

			}

			_setViewport( cubeUVRenderTarget,
				col * SIZE_MAX, i > 2 ? SIZE_MAX : 0, SIZE_MAX, SIZE_MAX );
			renderer.setRenderTarget( cubeUVRenderTarget );

			if ( useSolidColor ) {

				renderer.render( backgroundBox, cubeCamera );

			}

			renderer.render( scene, cubeCamera );

		}

		backgroundBox.geometry.dispose();
		backgroundBox.material.dispose();

		renderer.toneMapping = toneMapping;
		renderer.autoClear = originalAutoClear;
		scene.background = background;

	}

	_textureToCubeUV( texture, cubeUVRenderTarget ) {

		const renderer = this._renderer;

		const isCubeTexture = ( texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping );

		if ( isCubeTexture ) {

			if ( this._cubemapShader === null ) {

				this._cubemapShader = _getCubemapShader();

			}

			this._cubemapShader.uniforms.flipEnvMap.value = ( texture.isRenderTargetTexture === false ) ? - 1 : 1;

		} else {

			if ( this._equirectShader === null ) {

				this._equirectShader = _getEquirectShader();

			}

		}

		const material = isCubeTexture ? this._cubemapShader : this._equirectShader;
		const mesh = new Mesh( _lodPlanes[ 0 ], material );

		const uniforms = material.uniforms;

		uniforms[ 'envMap' ].value = texture;

		if ( ! isCubeTexture ) {

			uniforms[ 'texelSize' ].value.set( 1.0 / texture.image.width, 1.0 / texture.image.height );

		}

		_setViewport( cubeUVRenderTarget, 0, 0, 3 * SIZE_MAX, 2 * SIZE_MAX );

		renderer.setRenderTarget( cubeUVRenderTarget );
		renderer.render( mesh, _flatCamera );

	}

	_applyPMREM( cubeUVRenderTarget ) {

		const renderer = this._renderer;
		const autoClear = renderer.autoClear;
		renderer.autoClear = false;

		for ( let i = 1; i < TOTAL_LODS; i ++ ) {

			const sigma = Math.sqrt( _sigmas[ i ] * _sigmas[ i ] - _sigmas[ i - 1 ] * _sigmas[ i - 1 ] );

			const poleAxis = _axisDirections[ ( i - 1 ) % _axisDirections.length ];

			this._blur( cubeUVRenderTarget, i - 1, i, sigma, poleAxis );

		}

		renderer.autoClear = autoClear;

	}

	/**
	 * This is a two-pass Gaussian blur for a cubemap. Normally this is done
	 * vertically and horizontally, but this breaks down on a cube. Here we apply
	 * the blur latitudinally (around the poles), and then longitudinally (towards
	 * the poles) to approximate the orthogonally-separable blur. It is least
	 * accurate at the poles, but still does a decent job.
	 */
	_blur( cubeUVRenderTarget, lodIn, lodOut, sigma, poleAxis ) {

		const pingPongRenderTarget = this._pingPongRenderTarget;

		this._halfBlur(
			cubeUVRenderTarget,
			pingPongRenderTarget,
			lodIn,
			lodOut,
			sigma,
			'latitudinal',
			poleAxis );

		this._halfBlur(
			pingPongRenderTarget,
			cubeUVRenderTarget,
			lodOut,
			lodOut,
			sigma,
			'longitudinal',
			poleAxis );

	}

	_halfBlur( targetIn, targetOut, lodIn, lodOut, sigmaRadians, direction, poleAxis ) {

		const renderer = this._renderer;
		const blurMaterial = this._blurMaterial;

		if ( direction !== 'latitudinal' && direction !== 'longitudinal' ) {

			console.error(
				'blur direction must be either latitudinal or longitudinal!' );

		}

		// Number of standard deviations at which to cut off the discrete approximation.
		const STANDARD_DEVIATIONS = 3;

		const blurMesh = new Mesh( _lodPlanes[ lodOut ], blurMaterial );
		const blurUniforms = blurMaterial.uniforms;

		const pixels = _sizeLods[ lodIn ] - 1;
		const radiansPerPixel = isFinite( sigmaRadians ) ? Math.PI / ( 2 * pixels ) : 2 * Math.PI / ( 2 * MAX_SAMPLES - 1 );
		const sigmaPixels = sigmaRadians / radiansPerPixel;
		const samples = isFinite( sigmaRadians ) ? 1 + Math.floor( STANDARD_DEVIATIONS * sigmaPixels ) : MAX_SAMPLES;

		if ( samples > MAX_SAMPLES ) {

			console.warn( `sigmaRadians, ${
				sigmaRadians}, is too large and will clip, as it requested ${
				samples} samples when the maximum is set to ${MAX_SAMPLES}` );

		}

		const weights = [];
		let sum = 0;

		for ( let i = 0; i < MAX_SAMPLES; ++ i ) {

			const x = i / sigmaPixels;
			const weight = Math.exp( - x * x / 2 );
			weights.push( weight );

			if ( i === 0 ) {

				sum += weight;

			} else if ( i < samples ) {

				sum += 2 * weight;

			}

		}

		for ( let i = 0; i < weights.length; i ++ ) {

			weights[ i ] = weights[ i ] / sum;

		}

		blurUniforms[ 'envMap' ].value = targetIn.texture;
		blurUniforms[ 'samples' ].value = samples;
		blurUniforms[ 'weights' ].value = weights;
		blurUniforms[ 'latitudinal' ].value = direction === 'latitudinal';

		if ( poleAxis ) {

			blurUniforms[ 'poleAxis' ].value = poleAxis;

		}

		blurUniforms[ 'dTheta' ].value = radiansPerPixel;
		blurUniforms[ 'mipInt' ].value = LOD_MAX - lodIn;

		const outputSize = _sizeLods[ lodOut ];
		const x = 3 * Math.max( 0, SIZE_MAX - 2 * outputSize );
		const y = ( lodOut === 0 ? 0 : 2 * SIZE_MAX ) + 2 * outputSize * ( lodOut > LOD_MAX - LOD_MIN ? lodOut - LOD_MAX + LOD_MIN : 0 );

		_setViewport( targetOut, x, y, 3 * outputSize, 2 * outputSize );
		renderer.setRenderTarget( targetOut );
		renderer.render( blurMesh, _flatCamera );

	}

}

function _createPlanes() {

	const _lodPlanes = [];
	const _sizeLods = [];
	const _sigmas = [];

	let lod = LOD_MAX;

	for ( let i = 0; i < TOTAL_LODS; i ++ ) {

		const sizeLod = Math.pow( 2, lod );
		_sizeLods.push( sizeLod );
		let sigma = 1.0 / sizeLod;

		if ( i > LOD_MAX - LOD_MIN ) {

			sigma = EXTRA_LOD_SIGMA[ i - LOD_MAX + LOD_MIN - 1 ];

		} else if ( i === 0 ) {

			sigma = 0;

		}

		_sigmas.push( sigma );

		const texelSize = 1.0 / ( sizeLod - 1 );
		const min = - texelSize / 2;
		const max = 1 + texelSize / 2;
		const uv1 = [ min, min, max, min, max, max, min, min, max, max, min, max ];

		const cubeFaces = 6;
		const vertices = 6;
		const positionSize = 3;
		const uvSize = 2;
		const faceIndexSize = 1;

		const position = new Float32Array( positionSize * vertices * cubeFaces );
		const uv = new Float32Array( uvSize * vertices * cubeFaces );
		const faceIndex = new Float32Array( faceIndexSize * vertices * cubeFaces );

		for ( let face = 0; face < cubeFaces; face ++ ) {

			const x = ( face % 3 ) * 2 / 3 - 1;
			const y = face > 2 ? 0 : - 1;
			const coordinates = [
				x, y, 0,
				x + 2 / 3, y, 0,
				x + 2 / 3, y + 1, 0,
				x, y, 0,
				x + 2 / 3, y + 1, 0,
				x, y + 1, 0
			];
			position.set( coordinates, positionSize * vertices * face );
			uv.set( uv1, uvSize * vertices * face );
			const fill = [ face, face, face, face, face, face ];
			faceIndex.set( fill, faceIndexSize * vertices * face );

		}

		const planes = new BufferGeometry();
		planes.setAttribute( 'position', new BufferAttribute( position, positionSize ) );
		planes.setAttribute( 'uv', new BufferAttribute( uv, uvSize ) );
		planes.setAttribute( 'faceIndex', new BufferAttribute( faceIndex, faceIndexSize ) );
		_lodPlanes.push( planes );

		if ( lod > LOD_MIN ) {

			lod --;

		}

	}

	return { _lodPlanes, _sizeLods, _sigmas };

}

function _createRenderTarget( params ) {

	const cubeUVRenderTarget = new WebGLRenderTarget( 3 * SIZE_MAX, 3 * SIZE_MAX, params );
	cubeUVRenderTarget.texture.mapping = CubeUVReflectionMapping;
	cubeUVRenderTarget.texture.name = 'PMREM.cubeUv';
	cubeUVRenderTarget.scissorTest = true;
	return cubeUVRenderTarget;

}

function _setViewport( target, x, y, width, height ) {

	target.viewport.set( x, y, width, height );
	target.scissor.set( x, y, width, height );

}

function _getBlurShader( maxSamples ) {

	const weights = new Float32Array( maxSamples );
	const poleAxis = new Vector3( 0, 1, 0 );
	const shaderMaterial = new RawShaderMaterial( {

		name: 'SphericalGaussianBlur',

		defines: { 'n': maxSamples },

		uniforms: {
			'envMap': { value: null },
			'samples': { value: 1 },
			'weights': { value: weights },
			'latitudinal': { value: false },
			'dTheta': { value: 0 },
			'mipInt': { value: 0 },
			'poleAxis': { value: poleAxis }
		},

		vertexShader: _getCommonVertexShader(),

		fragmentShader: /* glsl */`

			precision mediump float;
			precision mediump int;

			varying vec3 vOutputDirection;

			uniform sampler2D envMap;
			uniform int samples;
			uniform float weights[ n ];
			uniform bool latitudinal;
			uniform float dTheta;
			uniform float mipInt;
			uniform vec3 poleAxis;

			#define ENVMAP_TYPE_CUBE_UV
			#include <cube_uv_reflection_fragment>

			vec3 getSample( float theta, vec3 axis ) {

				float cosTheta = cos( theta );
				// Rodrigues' axis-angle rotation
				vec3 sampleDirection = vOutputDirection * cosTheta
					+ cross( axis, vOutputDirection ) * sin( theta )
					+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );

				return bilinearCubeUV( envMap, sampleDirection, mipInt );

			}

			void main() {

				vec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );

				if ( all( equal( axis, vec3( 0.0 ) ) ) ) {

					axis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );

				}

				axis = normalize( axis );

				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
				gl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );

				for ( int i = 1; i < n; i++ ) {

					if ( i >= samples ) {

						break;

					}

					float theta = dTheta * float( i );
					gl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );
					gl_FragColor.rgb += weights[ i ] * getSample( theta, axis );

				}

			}
		`,

		blending: NoBlending,
		depthTest: false,
		depthWrite: false

	} );

	return shaderMaterial;

}

function _getEquirectShader() {

	const texelSize = new Vector2( 1, 1 );
	const shaderMaterial = new RawShaderMaterial( {

		name: 'EquirectangularToCubeUV',

		uniforms: {
			'envMap': { value: null },
			'texelSize': { value: texelSize }
		},

		vertexShader: _getCommonVertexShader(),

		fragmentShader: /* glsl */`

			precision mediump float;
			precision mediump int;

			varying vec3 vOutputDirection;

			uniform sampler2D envMap;
			uniform vec2 texelSize;

			#include <common>

			void main() {

				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );

				vec3 outputDirection = normalize( vOutputDirection );
				vec2 uv = equirectUv( outputDirection );

				vec2 f = fract( uv / texelSize - 0.5 );
				uv -= f * texelSize;
				vec3 tl = texture2D ( envMap, uv ).rgb;
				uv.x += texelSize.x;
				vec3 tr = texture2D ( envMap, uv ).rgb;
				uv.y += texelSize.y;
				vec3 br = texture2D ( envMap, uv ).rgb;
				uv.x -= texelSize.x;
				vec3 bl = texture2D ( envMap, uv ).rgb;

				vec3 tm = mix( tl, tr, f.x );
				vec3 bm = mix( bl, br, f.x );
				gl_FragColor.rgb = mix( tm, bm, f.y );

			}
		`,

		blending: NoBlending,
		depthTest: false,
		depthWrite: false

	} );

	return shaderMaterial;

}

function _getCubemapShader() {

	const shaderMaterial = new RawShaderMaterial( {

		name: 'CubemapToCubeUV',

		uniforms: {
			'envMap': { value: null },
			'flipEnvMap': { value: - 1 }
		},

		vertexShader: _getCommonVertexShader(),

		fragmentShader: /* glsl */`

			precision mediump float;
			precision mediump int;

			uniform float flipEnvMap;

			varying vec3 vOutputDirection;

			uniform samplerCube envMap;

			void main() {

				gl_FragColor = textureCube( envMap, vec3( flipEnvMap * vOutputDirection.x, vOutputDirection.yz ) );

			}
		`,

		blending: NoBlending,
		depthTest: false,
		depthWrite: false

	} );

	return shaderMaterial;

}

function _getCommonVertexShader() {

	return /* glsl */`

		precision mediump float;
		precision mediump int;

		attribute vec3 position;
		attribute vec2 uv;
		attribute float faceIndex;

		varying vec3 vOutputDirection;

		// RH coordinate system; PMREM face-indexing convention
		vec3 getDirection( vec2 uv, float face ) {

			uv = 2.0 * uv - 1.0;

			vec3 direction = vec3( uv, 1.0 );

			if ( face == 0.0 ) {

				direction = direction.zyx; // ( 1, v, u ) pos x

			} else if ( face == 1.0 ) {

				direction = direction.xzy;
				direction.xz *= -1.0; // ( -u, 1, -v ) pos y

			} else if ( face == 2.0 ) {

				direction.x *= -1.0; // ( -u, v, 1 ) pos z

			} else if ( face == 3.0 ) {

				direction = direction.zyx;
				direction.xz *= -1.0; // ( -1, v, -u ) neg x

			} else if ( face == 4.0 ) {

				direction = direction.xzy;
				direction.xy *= -1.0; // ( -u, -1, v ) neg y

			} else if ( face == 5.0 ) {

				direction.z *= -1.0; // ( u, v, -1 ) neg z

			}

			return direction;

		}

		void main() {

			vOutputDirection = getDirection( uv, faceIndex );
			gl_Position = vec4( position, 1.0 );

		}
	`;

}

function WebGLCubeUVMaps( renderer ) {

	let cubeUVmaps = new WeakMap();

	let pmremGenerator = null;

	function get( texture ) {

		if ( texture && texture.isTexture ) {

			const mapping = texture.mapping;

			const isEquirectMap = ( mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping );
			const isCubeMap = ( mapping === CubeReflectionMapping || mapping === CubeRefractionMapping );

			// equirect/cube map to cubeUV conversion

			if ( isEquirectMap || isCubeMap ) {

				if ( texture.isRenderTargetTexture && texture.needsPMREMUpdate === true ) {

					texture.needsPMREMUpdate = false;

					let renderTarget = cubeUVmaps.get( texture );

					if ( pmremGenerator === null ) pmremGenerator = new PMREMGenerator( renderer );

					renderTarget = isEquirectMap ? pmremGenerator.fromEquirectangular( texture, renderTarget ) : pmremGenerator.fromCubemap( texture, renderTarget );
					cubeUVmaps.set( texture, renderTarget );

					return renderTarget.texture;

				} else {

					if ( cubeUVmaps.has( texture ) ) {

						return cubeUVmaps.get( texture ).texture;

					} else {

						const image = texture.image;

						if ( ( isEquirectMap && image && image.height > 0 ) || ( isCubeMap && image && isCubeTextureComplete( image ) ) ) {

							if ( pmremGenerator === null ) pmremGenerator = new PMREMGenerator( renderer );

							const renderTarget = isEquirectMap ? pmremGenerator.fromEquirectangular( texture ) : pmremGenerator.fromCubemap( texture );
							cubeUVmaps.set( texture, renderTarget );

							texture.addEventListener( 'dispose', onTextureDispose );

							return renderTarget.texture;

						} else {

							// image not yet ready. try the conversion next frame

							return null;

						}

					}

				}

			}

		}

		return texture;

	}

	function isCubeTextureComplete( image ) {

		let count = 0;
		const length = 6;

		for ( let i = 0; i < length; i ++ ) {

			if ( image[ i ] !== undefined ) count ++;

		}

		return count === length;


	}

	function onTextureDispose( event ) {

		const texture = event.target;

		texture.removeEventListener( 'dispose', onTextureDispose );

		const cubemapUV = cubeUVmaps.get( texture );

		if ( cubemapUV !== undefined ) {

			cubeUVmaps.delete( texture );
			cubemapUV.dispose();

		}

	}

	function dispose() {

		cubeUVmaps = new WeakMap();

		if ( pmremGenerator !== null ) {

			pmremGenerator.dispose();
			pmremGenerator = null;

		}

	}

	return {
		get: get,
		dispose: dispose
	};

}

function WebGLExtensions( gl ) {

	const extensions = {};

	function getExtension( name ) {

		if ( extensions[ name ] !== undefined ) {

			return extensions[ name ];

		}

		let extension;

		switch ( name ) {

			case 'WEBGL_depth_texture':
				extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );
				break;

			case 'EXT_texture_filter_anisotropic':
				extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );
				break;

			case 'WEBGL_compressed_texture_s3tc':
				extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );
				break;

			case 'WEBGL_compressed_texture_pvrtc':
				extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
				break;

			default:
				extension = gl.getExtension( name );

		}

		extensions[ name ] = extension;

		return extension;

	}

	return {

		has: function ( name ) {

			return getExtension( name ) !== null;

		},

		init: function ( capabilities ) {

			if ( capabilities.isWebGL2 ) {

				getExtension( 'EXT_color_buffer_float' );

			} else {

				getExtension( 'WEBGL_depth_texture' );
				getExtension( 'OES_texture_float' );
				getExtension( 'OES_texture_half_float' );
				getExtension( 'OES_texture_half_float_linear' );
				getExtension( 'OES_standard_derivatives' );
				getExtension( 'OES_element_index_uint' );
				getExtension( 'OES_vertex_array_object' );
				getExtension( 'ANGLE_instanced_arrays' );

			}

			getExtension( 'OES_texture_float_linear' );
			getExtension( 'EXT_color_buffer_half_float' );
			getExtension( 'WEBGL_multisampled_render_to_texture' );

		},

		get: function ( name ) {

			const extension = getExtension( name );

			if ( extension === null ) {

				console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );

			}

			return extension;

		}

	};

}

function WebGLGeometries( gl, attributes, info, bindingStates ) {

	const geometries = {};
	const wireframeAttributes = new WeakMap();

	function onGeometryDispose( event ) {

		const geometry = event.target;

		if ( geometry.index !== null ) {

			attributes.remove( geometry.index );

		}

		for ( const name in geometry.attributes ) {

			attributes.remove( geometry.attributes[ name ] );

		}

		geometry.removeEventListener( 'dispose', onGeometryDispose );

		delete geometries[ geometry.id ];

		const attribute = wireframeAttributes.get( geometry );

		if ( attribute ) {

			attributes.remove( attribute );
			wireframeAttributes.delete( geometry );

		}

		bindingStates.releaseStatesOfGeometry( geometry );

		if ( geometry.isInstancedBufferGeometry === true ) {

			delete geometry._maxInstanceCount;

		}

		//

		info.memory.geometries --;

	}

	function get( object, geometry ) {

		if ( geometries[ geometry.id ] === true ) return geometry;

		geometry.addEventListener( 'dispose', onGeometryDispose );

		geometries[ geometry.id ] = true;

		info.memory.geometries ++;

		return geometry;

	}

	function update( geometry ) {

		const geometryAttributes = geometry.attributes;

		// Updating index buffer in VAO now. See WebGLBindingStates.

		for ( const name in geometryAttributes ) {

			attributes.update( geometryAttributes[ name ], 34962 );

		}

		// morph targets

		const morphAttributes = geometry.morphAttributes;

		for ( const name in morphAttributes ) {

			const array = morphAttributes[ name ];

			for ( let i = 0, l = array.length; i < l; i ++ ) {

				attributes.update( array[ i ], 34962 );

			}

		}

	}

	function updateWireframeAttribute( geometry ) {

		const indices = [];

		const geometryIndex = geometry.index;
		const geometryPosition = geometry.attributes.position;
		let version = 0;

		if ( geometryIndex !== null ) {

			const array = geometryIndex.array;
			version = geometryIndex.version;

			for ( let i = 0, l = array.length; i < l; i += 3 ) {

				const a = array[ i + 0 ];
				const b = array[ i + 1 ];
				const c = array[ i + 2 ];

				indices.push( a, b, b, c, c, a );

			}

		} else {

			const array = geometryPosition.array;
			version = geometryPosition.version;

			for ( let i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {

				const a = i + 0;
				const b = i + 1;
				const c = i + 2;

				indices.push( a, b, b, c, c, a );

			}

		}

		const attribute = new ( arrayNeedsUint32( indices ) ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );
		attribute.version = version;

		// Updating index buffer in VAO now. See WebGLBindingStates

		//

		const previousAttribute = wireframeAttributes.get( geometry );

		if ( previousAttribute ) attributes.remove( previousAttribute );

		//

		wireframeAttributes.set( geometry, attribute );

	}

	function getWireframeAttribute( geometry ) {

		const currentAttribute = wireframeAttributes.get( geometry );

		if ( currentAttribute ) {

			const geometryIndex = geometry.index;

			if ( geometryIndex !== null ) {

				// if the attribute is obsolete, create a new one

				if ( currentAttribute.version < geometryIndex.version ) {

					updateWireframeAttribute( geometry );

				}

			}

		} else {

			updateWireframeAttribute( geometry );

		}

		return wireframeAttributes.get( geometry );

	}

	return {

		get: get,
		update: update,

		getWireframeAttribute: getWireframeAttribute

	};

}

function WebGLIndexedBufferRenderer( gl, extensions, info, capabilities ) {

	const isWebGL2 = capabilities.isWebGL2;

	let mode;

	function setMode( value ) {

		mode = value;

	}

	let type, bytesPerElement;

	function setIndex( value ) {

		type = value.type;
		bytesPerElement = value.bytesPerElement;

	}

	function render( start, count ) {

		gl.drawElements( mode, count, type, start * bytesPerElement );

		info.update( count, mode, 1 );

	}

	function renderInstances( start, count, primcount ) {

		if ( primcount === 0 ) return;

		let extension, methodName;

		if ( isWebGL2 ) {

			extension = gl;
			methodName = 'drawElementsInstanced';

		} else {

			extension = extensions.get( 'ANGLE_instanced_arrays' );
			methodName = 'drawElementsInstancedANGLE';

			if ( extension === null ) {

				console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
				return;

			}

		}

		extension[ methodName ]( mode, count, type, start * bytesPerElement, primcount );

		info.update( count, mode, primcount );

	}

	//

	this.setMode = setMode;
	this.setIndex = setIndex;
	this.render = render;
	this.renderInstances = renderInstances;

}

function WebGLInfo( gl ) {

	const memory = {
		geometries: 0,
		textures: 0
	};

	const render = {
		frame: 0,
		calls: 0,
		triangles: 0,
		points: 0,
		lines: 0
	};

	function update( count, mode, instanceCount ) {

		render.calls ++;

		switch ( mode ) {

			case 4:
				render.triangles += instanceCount * ( count / 3 );
				break;

			case 1:
				render.lines += instanceCount * ( count / 2 );
				break;

			case 3:
				render.lines += instanceCount * ( count - 1 );
				break;

			case 2:
				render.lines += instanceCount * count;
				break;

			case 0:
				render.points += instanceCount * count;
				break;

			default:
				console.error( 'THREE.WebGLInfo: Unknown draw mode:', mode );
				break;

		}

	}

	function reset() {

		render.frame ++;
		render.calls = 0;
		render.triangles = 0;
		render.points = 0;
		render.lines = 0;

	}

	return {
		memory: memory,
		render: render,
		programs: null,
		autoReset: true,
		reset: reset,
		update: update
	};

}

class DataTexture2DArray extends Texture {

	constructor( data = null, width = 1, height = 1, depth = 1 ) {

		super( null );

		this.image = { data, width, height, depth };

		this.magFilter = NearestFilter;
		this.minFilter = NearestFilter;

		this.wrapR = ClampToEdgeWrapping;

		this.generateMipmaps = false;
		this.flipY = false;
		this.unpackAlignment = 1;

	}

}

DataTexture2DArray.prototype.isDataTexture2DArray = true;

function numericalSort( a, b ) {

	return a[ 0 ] - b[ 0 ];

}

function absNumericalSort( a, b ) {

	return Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] );

}

function denormalize( morph, attribute ) {

	let denominator = 1;
	const array = attribute.isInterleavedBufferAttribute ? attribute.data.array : attribute.array;

	if ( array instanceof Int8Array ) denominator = 127;
	else if ( array instanceof Int16Array ) denominator = 32767;
	else if ( array instanceof Int32Array ) denominator = 2147483647;
	else console.error( 'THREE.WebGLMorphtargets: Unsupported morph attribute data type: ', array );

	morph.divideScalar( denominator );

}

function WebGLMorphtargets( gl, capabilities, textures ) {

	const influencesList = {};
	const morphInfluences = new Float32Array( 8 );
	const morphTextures = new WeakMap();
	const morph = new Vector3();

	const workInfluences = [];

	for ( let i = 0; i < 8; i ++ ) {

		workInfluences[ i ] = [ i, 0 ];

	}

	function update( object, geometry, material, program ) {

		const objectInfluences = object.morphTargetInfluences;

		if ( capabilities.isWebGL2 === true ) {

			// instead of using attributes, the WebGL 2 code path encodes morph targets
			// into an array of data textures. Each layer represents a single morph target.

			const numberOfMorphTargets = geometry.morphAttributes.position.length;

			let entry = morphTextures.get( geometry );

			if ( entry === undefined || entry.count !== numberOfMorphTargets ) {

				if ( entry !== undefined ) entry.texture.dispose();

				const hasMorphNormals = geometry.morphAttributes.normal !== undefined;

				const morphTargets = geometry.morphAttributes.position;
				const morphNormals = geometry.morphAttributes.normal || [];

				const numberOfVertices = geometry.attributes.position.count;
				const numberOfVertexData = ( hasMorphNormals === true ) ? 2 : 1; // (v,n) vs. (v)

				let width = numberOfVertices * numberOfVertexData;
				let height = 1;

				if ( width > capabilities.maxTextureSize ) {

					height = Math.ceil( width / capabilities.maxTextureSize );
					width = capabilities.maxTextureSize;

				}

				const buffer = new Float32Array( width * height * 4 * numberOfMorphTargets );

				const texture = new DataTexture2DArray( buffer, width, height, numberOfMorphTargets );
				texture.format = RGBAFormat; // using RGBA since RGB might be emulated (and is thus slower)
				texture.type = FloatType;
				texture.needsUpdate = true;

				// fill buffer

				const vertexDataStride = numberOfVertexData * 4;

				for ( let i = 0; i < numberOfMorphTargets; i ++ ) {

					const morphTarget = morphTargets[ i ];
					const morphNormal = morphNormals[ i ];

					const offset = width * height * 4 * i;

					for ( let j = 0; j < morphTarget.count; j ++ ) {

						morph.fromBufferAttribute( morphTarget, j );

						if ( morphTarget.normalized === true ) denormalize( morph, morphTarget );

						const stride = j * vertexDataStride;

						buffer[ offset + stride + 0 ] = morph.x;
						buffer[ offset + stride + 1 ] = morph.y;
						buffer[ offset + stride + 2 ] = morph.z;
						buffer[ offset + stride + 3 ] = 0;

						if ( hasMorphNormals === true ) {

							morph.fromBufferAttribute( morphNormal, j );

							if ( morphNormal.normalized === true ) denormalize( morph, morphNormal );

							buffer[ offset + stride + 4 ] = morph.x;
							buffer[ offset + stride + 5 ] = morph.y;
							buffer[ offset + stride + 6 ] = morph.z;
							buffer[ offset + stride + 7 ] = 0;

						}

					}

				}

				entry = {
					count: numberOfMorphTargets,
					texture: texture,
					size: new Vector2( width, height )
				};

				morphTextures.set( geometry, entry );

				function disposeTexture() {

					texture.dispose();

					morphTextures.delete( geometry );

					geometry.removeEventListener( 'dispose', disposeTexture );

				}

				geometry.addEventListener( 'dispose', disposeTexture );

			}

			//

			let morphInfluencesSum = 0;

			for ( let i = 0; i < objectInfluences.length; i ++ ) {

				morphInfluencesSum += objectInfluences[ i ];

			}

			const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;

			program.getUniforms().setValue( gl, 'morphTargetBaseInfluence', morphBaseInfluence );
			program.getUniforms().setValue( gl, 'morphTargetInfluences', objectInfluences );

			program.getUniforms().setValue( gl, 'morphTargetsTexture', entry.texture, textures );
			program.getUniforms().setValue( gl, 'morphTargetsTextureSize', entry.size );


		} else {

			// When object doesn't have morph target influences defined, we treat it as a 0-length array
			// This is important to make sure we set up morphTargetBaseInfluence / morphTargetInfluences

			const length = objectInfluences === undefined ? 0 : objectInfluences.length;

			let influences = influencesList[ geometry.id ];

			if ( influences === undefined || influences.length !== length ) {

				// initialise list

				influences = [];

				for ( let i = 0; i < length; i ++ ) {

					influences[ i ] = [ i, 0 ];

				}

				influencesList[ geometry.id ] = influences;

			}

			// Collect influences

			for ( let i = 0; i < length; i ++ ) {

				const influence = influences[ i ];

				influence[ 0 ] = i;
				influence[ 1 ] = objectInfluences[ i ];

			}

			influences.sort( absNumericalSort );

			for ( let i = 0; i < 8; i ++ ) {

				if ( i < length && influences[ i ][ 1 ] ) {

					workInfluences[ i ][ 0 ] = influences[ i ][ 0 ];
					workInfluences[ i ][ 1 ] = influences[ i ][ 1 ];

				} else {

					workInfluences[ i ][ 0 ] = Number.MAX_SAFE_INTEGER;
					workInfluences[ i ][ 1 ] = 0;

				}

			}

			workInfluences.sort( numericalSort );

			const morphTargets = geometry.morphAttributes.position;
			const morphNormals = geometry.morphAttributes.normal;

			let morphInfluencesSum = 0;

			for ( let i = 0; i < 8; i ++ ) {

				const influence = workInfluences[ i ];
				const index = influence[ 0 ];
				const value = influence[ 1 ];

				if ( index !== Number.MAX_SAFE_INTEGER && value ) {

					if ( morphTargets && geometry.getAttribute( 'morphTarget' + i ) !== morphTargets[ index ] ) {

						geometry.setAttribute( 'morphTarget' + i, morphTargets[ index ] );

					}

					if ( morphNormals && geometry.getAttribute( 'morphNormal' + i ) !== morphNormals[ index ] ) {

						geometry.setAttribute( 'morphNormal' + i, morphNormals[ index ] );

					}

					morphInfluences[ i ] = value;
					morphInfluencesSum += value;

				} else {

					if ( morphTargets && geometry.hasAttribute( 'morphTarget' + i ) === true ) {

						geometry.deleteAttribute( 'morphTarget' + i );

					}

					if ( morphNormals && geometry.hasAttribute( 'morphNormal' + i ) === true ) {

						geometry.deleteAttribute( 'morphNormal' + i );

					}

					morphInfluences[ i ] = 0;

				}

			}

			// GLSL shader uses formula baseinfluence * base + sum(target * influence)
			// This allows us to switch between absolute morphs and relative morphs without changing shader code
			// When baseinfluence = 1 - sum(influence), the above is equivalent to sum((target - base) * influence)
			const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;

			program.getUniforms().setValue( gl, 'morphTargetBaseInfluence', morphBaseInfluence );
			program.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences );

		}

	}

	return {

		update: update

	};

}

function WebGLObjects( gl, geometries, attributes, info ) {

	let updateMap = new WeakMap();

	function update( object ) {

		const frame = info.render.frame;

		const geometry = object.geometry;
		const buffergeometry = geometries.get( object, geometry );

		// Update once per frame

		if ( updateMap.get( buffergeometry ) !== frame ) {

			geometries.update( buffergeometry );

			updateMap.set( buffergeometry, frame );

		}

		if ( object.isInstancedMesh ) {

			if ( object.hasEventListener( 'dispose', onInstancedMeshDispose ) === false ) {

				object.addEventListener( 'dispose', onInstancedMeshDispose );

			}

			attributes.update( object.instanceMatrix, 34962 );

			if ( object.instanceColor !== null ) {

				attributes.update( object.instanceColor, 34962 );

			}

		}

		return buffergeometry;

	}

	function dispose() {

		updateMap = new WeakMap();

	}

	function onInstancedMeshDispose( event ) {

		const instancedMesh = event.target;

		instancedMesh.removeEventListener( 'dispose', onInstancedMeshDispose );

		attributes.remove( instancedMesh.instanceMatrix );

		if ( instancedMesh.instanceColor !== null ) attributes.remove( instancedMesh.instanceColor );

	}

	return {

		update: update,
		dispose: dispose

	};

}

class DataTexture3D extends Texture {

	constructor( data = null, width = 1, height = 1, depth = 1 ) {

		// We're going to add .setXXX() methods for setting properties later.
		// Users can still set in DataTexture3D directly.
		//
		//	const texture = new THREE.DataTexture3D( data, width, height, depth );
		// 	texture.anisotropy = 16;
		//
		// See #14839

		super( null );

		this.image = { data, width, height, depth };

		this.magFilter = NearestFilter;
		this.minFilter = NearestFilter;

		this.wrapR = ClampToEdgeWrapping;

		this.generateMipmaps = false;
		this.flipY = false;
		this.unpackAlignment = 1;

	}

}

DataTexture3D.prototype.isDataTexture3D = true;

/**
 * Uniforms of a program.
 * Those form a tree structure with a special top-level container for the root,
 * which you get by calling 'new WebGLUniforms( gl, program )'.
 *
 *
 * Properties of inner nodes including the top-level container:
 *
 * .seq - array of nested uniforms
 * .map - nested uniforms by name
 *
 *
 * Methods of all nodes except the top-level container:
 *
 * .setValue( gl, value, [textures] )
 *
 * 		uploads a uniform value(s)
 *  	the 'textures' parameter is needed for sampler uniforms
 *
 *
 * Static methods of the top-level container (textures factorizations):
 *
 * .upload( gl, seq, values, textures )
 *
 * 		sets uniforms in 'seq' to 'values[id].value'
 *
 * .seqWithValue( seq, values ) : filteredSeq
 *
 * 		filters 'seq' entries with corresponding entry in values
 *
 *
 * Methods of the top-level container (textures factorizations):
 *
 * .setValue( gl, name, value, textures )
 *
 * 		sets uniform with  name 'name' to 'value'
 *
 * .setOptional( gl, obj, prop )
 *
 * 		like .set for an optional property of the object
 *
 */

const emptyTexture = new Texture();
const emptyTexture2dArray = new DataTexture2DArray();
const emptyTexture3d = new DataTexture3D();
const emptyCubeTexture = new CubeTexture();

// --- Utilities ---

// Array Caches (provide typed arrays for temporary by size)

const arrayCacheF32 = [];
const arrayCacheI32 = [];

// Float32Array caches used for uploading Matrix uniforms

const mat4array = new Float32Array( 16 );
const mat3array = new Float32Array( 9 );
const mat2array = new Float32Array( 4 );

// Flattening for arrays of vectors and matrices

function flatten( array, nBlocks, blockSize ) {

	const firstElem = array[ 0 ];

	if ( firstElem <= 0 || firstElem > 0 ) return array;
	// unoptimized: ! isNaN( firstElem )
	// see http://jacksondunstan.com/articles/983

	const n = nBlocks * blockSize;
	let r = arrayCacheF32[ n ];

	if ( r === undefined ) {

		r = new Float32Array( n );
		arrayCacheF32[ n ] = r;

	}

	if ( nBlocks !== 0 ) {

		firstElem.toArray( r, 0 );

		for ( let i = 1, offset = 0; i !== nBlocks; ++ i ) {

			offset += blockSize;
			array[ i ].toArray( r, offset );

		}

	}

	return r;

}

function arraysEqual( a, b ) {

	if ( a.length !== b.length ) return false;

	for ( let i = 0, l = a.length; i < l; i ++ ) {

		if ( a[ i ] !== b[ i ] ) return false;

	}

	return true;

}

function copyArray( a, b ) {

	for ( let i = 0, l = b.length; i < l; i ++ ) {

		a[ i ] = b[ i ];

	}

}

// Texture unit allocation

function allocTexUnits( textures, n ) {

	let r = arrayCacheI32[ n ];

	if ( r === undefined ) {

		r = new Int32Array( n );
		arrayCacheI32[ n ] = r;

	}

	for ( let i = 0; i !== n; ++ i ) {

		r[ i ] = textures.allocateTextureUnit();

	}

	return r;

}

// --- Setters ---

// Note: Defining these methods externally, because they come in a bunch
// and this way their names minify.

// Single scalar

function setValueV1f( gl, v ) {

	const cache = this.cache;

	if ( cache[ 0 ] === v ) return;

	gl.uniform1f( this.addr, v );

	cache[ 0 ] = v;

}

// Single float vector (from flat array or THREE.VectorN)

function setValueV2f( gl, v ) {

	const cache = this.cache;

	if ( v.x !== undefined ) {

		if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y ) {

			gl.uniform2f( this.addr, v.x, v.y );

			cache[ 0 ] = v.x;
			cache[ 1 ] = v.y;

		}

	} else {

		if ( arraysEqual( cache, v ) ) return;

		gl.uniform2fv( this.addr, v );

		copyArray( cache, v );

	}

}

function setValueV3f( gl, v ) {

	const cache = this.cache;

	if ( v.x !== undefined ) {

		if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z ) {

			gl.uniform3f( this.addr, v.x, v.y, v.z );

			cache[ 0 ] = v.x;
			cache[ 1 ] = v.y;
			cache[ 2 ] = v.z;

		}

	} else if ( v.r !== undefined ) {

		if ( cache[ 0 ] !== v.r || cache[ 1 ] !== v.g || cache[ 2 ] !== v.b ) {

			gl.uniform3f( this.addr, v.r, v.g, v.b );

			cache[ 0 ] = v.r;
			cache[ 1 ] = v.g;
			cache[ 2 ] = v.b;

		}

	} else {

		if ( arraysEqual( cache, v ) ) return;

		gl.uniform3fv( this.addr, v );

		copyArray( cache, v );

	}

}

function setValueV4f( gl, v ) {

	const cache = this.cache;

	if ( v.x !== undefined ) {

		if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z || cache[ 3 ] !== v.w ) {

			gl.uniform4f( this.addr, v.x, v.y, v.z, v.w );

			cache[ 0 ] = v.x;
			cache[ 1 ] = v.y;
			cache[ 2 ] = v.z;
			cache[ 3 ] = v.w;

		}

	} else {

		if ( arraysEqual( cache, v ) ) return;

		gl.uniform4fv( this.addr, v );

		copyArray( cache, v );

	}

}

// Single matrix (from flat array or THREE.MatrixN)

function setValueM2( gl, v ) {

	const cache = this.cache;
	const elements = v.elements;

	if ( elements === undefined ) {

		if ( arraysEqual( cache, v ) ) return;

		gl.uniformMatrix2fv( this.addr, false, v );

		copyArray( cache, v );

	} else {

		if ( arraysEqual( cache, elements ) ) return;

		mat2array.set( elements );

		gl.uniformMatrix2fv( this.addr, false, mat2array );

		copyArray( cache, elements );

	}

}

function setValueM3( gl, v ) {

	const cache = this.cache;
	const elements = v.elements;

	if ( elements === undefined ) {

		if ( arraysEqual( cache, v ) ) return;

		gl.uniformMatrix3fv( this.addr, false, v );

		copyArray( cache, v );

	} else {

		if ( arraysEqual( cache, elements ) ) return;

		mat3array.set( elements );

		gl.uniformMatrix3fv( this.addr, false, mat3array );

		copyArray( cache, elements );

	}

}

function setValueM4( gl, v ) {

	const cache = this.cache;
	const elements = v.elements;

	if ( elements === undefined ) {

		if ( arraysEqual( cache, v ) ) return;

		gl.uniformMatrix4fv( this.addr, false, v );

		copyArray( cache, v );

	} else {

		if ( arraysEqual( cache, elements ) ) return;

		mat4array.set( elements );

		gl.uniformMatrix4fv( this.addr, false, mat4array );

		copyArray( cache, elements );

	}

}

// Single integer / boolean

function setValueV1i( gl, v ) {

	const cache = this.cache;

	if ( cache[ 0 ] === v ) return;

	gl.uniform1i( this.addr, v );

	cache[ 0 ] = v;

}

// Single integer / boolean vector (from flat array)

function setValueV2i( gl, v ) {

	const cache = this.cache;

	if ( arraysEqual( cache, v ) ) return;

	gl.uniform2iv( this.addr, v );

	copyArray( cache, v );

}

function setValueV3i( gl, v ) {

	const cache = this.cache;

	if ( arraysEqual( cache, v ) ) return;

	gl.uniform3iv( this.addr, v );

	copyArray( cache, v );

}

function setValueV4i( gl, v ) {

	const cache = this.cache;

	if ( arraysEqual( cache, v ) ) return;

	gl.uniform4iv( this.addr, v );

	copyArray( cache, v );

}

// Single unsigned integer

function setValueV1ui( gl, v ) {

	const cache = this.cache;

	if ( cache[ 0 ] === v ) return;

	gl.uniform1ui( this.addr, v );

	cache[ 0 ] = v;

}

// Single unsigned integer vector (from flat array)

function setValueV2ui( gl, v ) {

	const cache = this.cache;

	if ( arraysEqual( cache, v ) ) return;

	gl.uniform2uiv( this.addr, v );

	copyArray( cache, v );

}

function setValueV3ui( gl, v ) {

	const cache = this.cache;

	if ( arraysEqual( cache, v ) ) return;

	gl.uniform3uiv( this.addr, v );

	copyArray( cache, v );

}

function setValueV4ui( gl, v ) {

	const cache = this.cache;

	if ( arraysEqual( cache, v ) ) return;

	gl.uniform4uiv( this.addr, v );

	copyArray( cache, v );

}


// Single texture (2D / Cube)

function setValueT1( gl, v, textures ) {

	const cache = this.cache;
	const unit = textures.allocateTextureUnit();

	if ( cache[ 0 ] !== unit ) {

		gl.uniform1i( this.addr, unit );
		cache[ 0 ] = unit;

	}

	textures.safeSetTexture2D( v || emptyTexture, unit );

}

function setValueT3D1( gl, v, textures ) {

	const cache = this.cache;
	const unit = textures.allocateTextureUnit();

	if ( cache[ 0 ] !== unit ) {

		gl.uniform1i( this.addr, unit );
		cache[ 0 ] = unit;

	}

	textures.setTexture3D( v || emptyTexture3d, unit );

}

function setValueT6( gl, v, textures ) {

	const cache = this.cache;
	const unit = textures.allocateTextureUnit();

	if ( cache[ 0 ] !== unit ) {

		gl.uniform1i( this.addr, unit );
		cache[ 0 ] = unit;

	}

	textures.safeSetTextureCube( v || emptyCubeTexture, unit );

}

function setValueT2DArray1( gl, v, textures ) {

	const cache = this.cache;
	const unit = textures.allocateTextureUnit();

	if ( cache[ 0 ] !== unit ) {

		gl.uniform1i( this.addr, unit );
		cache[ 0 ] = unit;

	}

	textures.setTexture2DArray( v || emptyTexture2dArray, unit );

}

// Helper to pick the right setter for the singular case

function getSingularSetter( type ) {

	switch ( type ) {

		case 0x1406: return setValueV1f; // FLOAT
		case 0x8b50: return setValueV2f; // _VEC2
		case 0x8b51: return setValueV3f; // _VEC3
		case 0x8b52: return setValueV4f; // _VEC4

		case 0x8b5a: return setValueM2; // _MAT2
		case 0x8b5b: return setValueM3; // _MAT3
		case 0x8b5c: return setValueM4; // _MAT4

		case 0x1404: case 0x8b56: return setValueV1i; // INT, BOOL
		case 0x8b53: case 0x8b57: return setValueV2i; // _VEC2
		case 0x8b54: case 0x8b58: return setValueV3i; // _VEC3
		case 0x8b55: case 0x8b59: return setValueV4i; // _VEC4

		case 0x1405: return setValueV1ui; // UINT
		case 0x8dc6: return setValueV2ui; // _VEC2
		case 0x8dc7: return setValueV3ui; // _VEC3
		case 0x8dc8: return setValueV4ui; // _VEC4

		case 0x8b5e: // SAMPLER_2D
		case 0x8d66: // SAMPLER_EXTERNAL_OES
		case 0x8dca: // INT_SAMPLER_2D
		case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D
		case 0x8b62: // SAMPLER_2D_SHADOW
			return setValueT1;

		case 0x8b5f: // SAMPLER_3D
		case 0x8dcb: // INT_SAMPLER_3D
		case 0x8dd3: // UNSIGNED_INT_SAMPLER_3D
			return setValueT3D1;

		case 0x8b60: // SAMPLER_CUBE
		case 0x8dcc: // INT_SAMPLER_CUBE
		case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE
		case 0x8dc5: // SAMPLER_CUBE_SHADOW
			return setValueT6;

		case 0x8dc1: // SAMPLER_2D_ARRAY
		case 0x8dcf: // INT_SAMPLER_2D_ARRAY
		case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY
		case 0x8dc4: // SAMPLER_2D_ARRAY_SHADOW
			return setValueT2DArray1;

	}

}


// Array of scalars

function setValueV1fArray( gl, v ) {

	gl.uniform1fv( this.addr, v );

}

// Array of vectors (from flat array or array of THREE.VectorN)

function setValueV2fArray( gl, v ) {

	const data = flatten( v, this.size, 2 );

	gl.uniform2fv( this.addr, data );

}

function setValueV3fArray( gl, v ) {

	const data = flatten( v, this.size, 3 );

	gl.uniform3fv( this.addr, data );

}

function setValueV4fArray( gl, v ) {

	const data = flatten( v, this.size, 4 );

	gl.uniform4fv( this.addr, data );

}

// Array of matrices (from flat array or array of THREE.MatrixN)

function setValueM2Array( gl, v ) {

	const data = flatten( v, this.size, 4 );

	gl.uniformMatrix2fv( this.addr, false, data );

}

function setValueM3Array( gl, v ) {

	const data = flatten( v, this.size, 9 );

	gl.uniformMatrix3fv( this.addr, false, data );

}

function setValueM4Array( gl, v ) {

	const data = flatten( v, this.size, 16 );

	gl.uniformMatrix4fv( this.addr, false, data );

}

// Array of integer / boolean

function setValueV1iArray( gl, v ) {

	gl.uniform1iv( this.addr, v );

}

// Array of integer / boolean vectors (from flat array)

function setValueV2iArray( gl, v ) {

	gl.uniform2iv( this.addr, v );

}

function setValueV3iArray( gl, v ) {

	gl.uniform3iv( this.addr, v );

}

function setValueV4iArray( gl, v ) {

	gl.uniform4iv( this.addr, v );

}

// Array of unsigned integer

function setValueV1uiArray( gl, v ) {

	gl.uniform1uiv( this.addr, v );

}

// Array of unsigned integer vectors (from flat array)

function setValueV2uiArray( gl, v ) {

	gl.uniform2uiv( this.addr, v );

}

function setValueV3uiArray( gl, v ) {

	gl.uniform3uiv( this.addr, v );

}

function setValueV4uiArray( gl, v ) {

	gl.uniform4uiv( this.addr, v );

}


// Array of textures (2D / 3D / Cube / 2DArray)

function setValueT1Array( gl, v, textures ) {

	const n = v.length;

	const units = allocTexUnits( textures, n );

	gl.uniform1iv( this.addr, units );

	for ( let i = 0; i !== n; ++ i ) {

		textures.safeSetTexture2D( v[ i ] || emptyTexture, units[ i ] );

	}

}

function setValueT3DArray( gl, v, textures ) {

	const n = v.length;

	const units = allocTexUnits( textures, n );

	gl.uniform1iv( this.addr, units );

	for ( let i = 0; i !== n; ++ i ) {

		textures.setTexture3D( v[ i ] || emptyTexture3d, units[ i ] );

	}

}

function setValueT6Array( gl, v, textures ) {

	const n = v.length;

	const units = allocTexUnits( textures, n );

	gl.uniform1iv( this.addr, units );

	for ( let i = 0; i !== n; ++ i ) {

		textures.safeSetTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );

	}

}

function setValueT2DArrayArray( gl, v, textures ) {

	const n = v.length;

	const units = allocTexUnits( textures, n );

	gl.uniform1iv( this.addr, units );

	for ( let i = 0; i !== n; ++ i ) {

		textures.setTexture2DArray( v[ i ] || emptyTexture2dArray, units[ i ] );

	}

}


// Helper to pick the right setter for a pure (bottom-level) array

function getPureArraySetter( type ) {

	switch ( type ) {

		case 0x1406: return setValueV1fArray; // FLOAT
		case 0x8b50: return setValueV2fArray; // _VEC2
		case 0x8b51: return setValueV3fArray; // _VEC3
		case 0x8b52: return setValueV4fArray; // _VEC4

		case 0x8b5a: return setValueM2Array; // _MAT2
		case 0x8b5b: return setValueM3Array; // _MAT3
		case 0x8b5c: return setValueM4Array; // _MAT4

		case 0x1404: case 0x8b56: return setValueV1iArray; // INT, BOOL
		case 0x8b53: case 0x8b57: return setValueV2iArray; // _VEC2
		case 0x8b54: case 0x8b58: return setValueV3iArray; // _VEC3
		case 0x8b55: case 0x8b59: return setValueV4iArray; // _VEC4

		case 0x1405: return setValueV1uiArray; // UINT
		case 0x8dc6: return setValueV2uiArray; // _VEC2
		case 0x8dc7: return setValueV3uiArray; // _VEC3
		case 0x8dc8: return setValueV4uiArray; // _VEC4

		case 0x8b5e: // SAMPLER_2D
		case 0x8d66: // SAMPLER_EXTERNAL_OES
		case 0x8dca: // INT_SAMPLER_2D
		case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D
		case 0x8b62: // SAMPLER_2D_SHADOW
			return setValueT1Array;

		case 0x8b5f: // SAMPLER_3D
		case 0x8dcb: // INT_SAMPLER_3D
		case 0x8dd3: // UNSIGNED_INT_SAMPLER_3D
			return setValueT3DArray;

		case 0x8b60: // SAMPLER_CUBE
		case 0x8dcc: // INT_SAMPLER_CUBE
		case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE
		case 0x8dc5: // SAMPLER_CUBE_SHADOW
			return setValueT6Array;

		case 0x8dc1: // SAMPLER_2D_ARRAY
		case 0x8dcf: // INT_SAMPLER_2D_ARRAY
		case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY
		case 0x8dc4: // SAMPLER_2D_ARRAY_SHADOW
			return setValueT2DArrayArray;

	}

}

// --- Uniform Classes ---

function SingleUniform( id, activeInfo, addr ) {

	this.id = id;
	this.addr = addr;
	this.cache = [];
	this.setValue = getSingularSetter( activeInfo.type );

	// this.path = activeInfo.name; // DEBUG

}

function PureArrayUniform( id, activeInfo, addr ) {

	this.id = id;
	this.addr = addr;
	this.cache = [];
	this.size = activeInfo.size;
	this.setValue = getPureArraySetter( activeInfo.type );

	// this.path = activeInfo.name; // DEBUG

}

PureArrayUniform.prototype.updateCache = function ( data ) {

	const cache = this.cache;

	if ( data instanceof Float32Array && cache.length !== data.length ) {

		this.cache = new Float32Array( data.length );

	}

	copyArray( cache, data );

};

function StructuredUniform( id ) {

	this.id = id;

	this.seq = [];
	this.map = {};

}

StructuredUniform.prototype.setValue = function ( gl, value, textures ) {

	const seq = this.seq;

	for ( let i = 0, n = seq.length; i !== n; ++ i ) {

		const u = seq[ i ];
		u.setValue( gl, value[ u.id ], textures );

	}

};

// --- Top-level ---

// Parser - builds up the property tree from the path strings

const RePathPart = /(\w+)(\])?(\[|\.)?/g;

// extracts
// 	- the identifier (member name or array index)
//  - followed by an optional right bracket (found when array index)
//  - followed by an optional left bracket or dot (type of subscript)
//
// Note: These portions can be read in a non-overlapping fashion and
// allow straightforward parsing of the hierarchy that WebGL encodes
// in the uniform names.

function addUniform( container, uniformObject ) {

	container.seq.push( uniformObject );
	container.map[ uniformObject.id ] = uniformObject;

}

function parseUniform( activeInfo, addr, container ) {

	const path = activeInfo.name,
		pathLength = path.length;

	// reset RegExp object, because of the early exit of a previous run
	RePathPart.lastIndex = 0;

	while ( true ) {

		const match = RePathPart.exec( path ),
			matchEnd = RePathPart.lastIndex;

		let id = match[ 1 ];
		const idIsIndex = match[ 2 ] === ']',
			subscript = match[ 3 ];

		if ( idIsIndex ) id = id | 0; // convert to integer

		if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {

			// bare name or "pure" bottom-level array "[0]" suffix

			addUniform( container, subscript === undefined ?
				new SingleUniform( id, activeInfo, addr ) :
				new PureArrayUniform( id, activeInfo, addr ) );

			break;

		} else {

			// step into inner node / create it in case it doesn't exist

			const map = container.map;
			let next = map[ id ];

			if ( next === undefined ) {

				next = new StructuredUniform( id );
				addUniform( container, next );

			}

			container = next;

		}

	}

}

// Root Container

function WebGLUniforms( gl, program ) {

	this.seq = [];
	this.map = {};

	const n = gl.getProgramParameter( program, 35718 );

	for ( let i = 0; i < n; ++ i ) {

		const info = gl.getActiveUniform( program, i ),
			addr = gl.getUniformLocation( program, info.name );

		parseUniform( info, addr, this );

	}

}

WebGLUniforms.prototype.setValue = function ( gl, name, value, textures ) {

	const u = this.map[ name ];

	if ( u !== undefined ) u.setValue( gl, value, textures );

};

WebGLUniforms.prototype.setOptional = function ( gl, object, name ) {

	const v = object[ name ];

	if ( v !== undefined ) this.setValue( gl, name, v );

};


// Static interface

WebGLUniforms.upload = function ( gl, seq, values, textures ) {

	for ( let i = 0, n = seq.length; i !== n; ++ i ) {

		const u = seq[ i ],
			v = values[ u.id ];

		if ( v.needsUpdate !== false ) {

			// note: always updating when .needsUpdate is undefined
			u.setValue( gl, v.value, textures );

		}

	}

};

WebGLUniforms.seqWithValue = function ( seq, values ) {

	const r = [];

	for ( let i = 0, n = seq.length; i !== n; ++ i ) {

		const u = seq[ i ];
		if ( u.id in values ) r.push( u );

	}

	return r;

};

function WebGLShader( gl, type, string ) {

	const shader = gl.createShader( type );

	gl.shaderSource( shader, string );
	gl.compileShader( shader );

	return shader;

}

let programIdCount = 0;

function addLineNumbers( string ) {

	const lines = string.split( '\n' );

	for ( let i = 0; i < lines.length; i ++ ) {

		lines[ i ] = ( i + 1 ) + ': ' + lines[ i ];

	}

	return lines.join( '\n' );

}

function getEncodingComponents( encoding ) {

	switch ( encoding ) {

		case LinearEncoding:
			return [ 'Linear', '( value )' ];
		case sRGBEncoding:
			return [ 'sRGB', '( value )' ];
		default:
			console.warn( 'THREE.WebGLProgram: Unsupported encoding:', encoding );
			return [ 'Linear', '( value )' ];

	}

}

function getShaderErrors( gl, shader, type ) {

	const status = gl.getShaderParameter( shader, 35713 );
	const errors = gl.getShaderInfoLog( shader ).trim();

	if ( status && errors === '' ) return '';

	// --enable-privileged-webgl-extension
	// console.log( '**' + type + '**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );

	return type.toUpperCase() + '\n\n' + errors + '\n\n' + addLineNumbers( gl.getShaderSource( shader ) );

}

function getTexelEncodingFunction( functionName, encoding ) {

	const components = getEncodingComponents( encoding );
	return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }';

}

function getToneMappingFunction( functionName, toneMapping ) {

	let toneMappingName;

	switch ( toneMapping ) {

		case LinearToneMapping:
			toneMappingName = 'Linear';
			break;

		case ReinhardToneMapping:
			toneMappingName = 'Reinhard';
			break;

		case CineonToneMapping:
			toneMappingName = 'OptimizedCineon';
			break;

		case ACESFilmicToneMapping:
			toneMappingName = 'ACESFilmic';
			break;

		case CustomToneMapping:
			toneMappingName = 'Custom';
			break;

		default:
			console.warn( 'THREE.WebGLProgram: Unsupported toneMapping:', toneMapping );
			toneMappingName = 'Linear';

	}

	return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';

}

function generateExtensions( parameters ) {

	const chunks = [
		( parameters.extensionDerivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.tangentSpaceNormalMap || parameters.clearcoatNormalMap || parameters.flatShading || parameters.shaderID === 'physical' ) ? '#extension GL_OES_standard_derivatives : enable' : '',
		( parameters.extensionFragDepth || parameters.logarithmicDepthBuffer ) && parameters.rendererExtensionFragDepth ? '#extension GL_EXT_frag_depth : enable' : '',
		( parameters.extensionDrawBuffers && parameters.rendererExtensionDrawBuffers ) ? '#extension GL_EXT_draw_buffers : require' : '',
		( parameters.extensionShaderTextureLOD || parameters.envMap || parameters.transmission ) && parameters.rendererExtensionShaderTextureLod ? '#extension GL_EXT_shader_texture_lod : enable' : ''
	];

	return chunks.filter( filterEmptyLine ).join( '\n' );

}

function generateDefines( defines ) {

	const chunks = [];

	for ( const name in defines ) {

		const value = defines[ name ];

		if ( value === false ) continue;

		chunks.push( '#define ' + name + ' ' + value );

	}

	return chunks.join( '\n' );

}

function fetchAttributeLocations( gl, program ) {

	const attributes = {};

	const n = gl.getProgramParameter( program, 35721 );

	for ( let i = 0; i < n; i ++ ) {

		const info = gl.getActiveAttrib( program, i );
		const name = info.name;

		let locationSize = 1;
		if ( info.type === 35674 ) locationSize = 2;
		if ( info.type === 35675 ) locationSize = 3;
		if ( info.type === 35676 ) locationSize = 4;

		// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );

		attributes[ name ] = {
			type: info.type,
			location: gl.getAttribLocation( program, name ),
			locationSize: locationSize
		};

	}

	return attributes;

}

function filterEmptyLine( string ) {

	return string !== '';

}

function replaceLightNums( string, parameters ) {

	return string
		.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )
		.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )
		.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )
		.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )
		.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights )
		.replace( /NUM_DIR_LIGHT_SHADOWS/g, parameters.numDirLightShadows )
		.replace( /NUM_SPOT_LIGHT_SHADOWS/g, parameters.numSpotLightShadows )
		.replace( /NUM_POINT_LIGHT_SHADOWS/g, parameters.numPointLightShadows );

}

function replaceClippingPlaneNums( string, parameters ) {

	return string
		.replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes )
		.replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) );

}

// Resolve Includes

const includePattern = /^[ \t]*#include +<([\w\d./]+)>/gm;

function resolveIncludes( string ) {

	return string.replace( includePattern, includeReplacer );

}

function includeReplacer( match, include ) {

	const string = ShaderChunk[ include ];

	if ( string === undefined ) {

		throw new Error( 'Can not resolve #include <' + include + '>' );

	}

	return resolveIncludes( string );

}

// Unroll Loops

const deprecatedUnrollLoopPattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;
const unrollLoopPattern = /#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g;

function unrollLoops( string ) {

	return string
		.replace( unrollLoopPattern, loopReplacer )
		.replace( deprecatedUnrollLoopPattern, deprecatedLoopReplacer );

}

function deprecatedLoopReplacer( match, start, end, snippet ) {

	console.warn( 'WebGLProgram: #pragma unroll_loop shader syntax is deprecated. Please use #pragma unroll_loop_start syntax instead.' );
	return loopReplacer( match, start, end, snippet );

}

function loopReplacer( match, start, end, snippet ) {

	let string = '';

	for ( let i = parseInt( start ); i < parseInt( end ); i ++ ) {

		string += snippet
			.replace( /\[\s*i\s*\]/g, '[ ' + i + ' ]' )
			.replace( /UNROLLED_LOOP_INDEX/g, i );

	}

	return string;

}

//

function generatePrecision( parameters ) {

	let precisionstring = 'precision ' + parameters.precision + ' float;\nprecision ' + parameters.precision + ' int;';

	if ( parameters.precision === 'highp' ) {

		precisionstring += '\n#define HIGH_PRECISION';

	} else if ( parameters.precision === 'mediump' ) {

		precisionstring += '\n#define MEDIUM_PRECISION';

	} else if ( parameters.precision === 'lowp' ) {

		precisionstring += '\n#define LOW_PRECISION';

	}

	return precisionstring;

}

function generateShadowMapTypeDefine( parameters ) {

	let shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';

	if ( parameters.shadowMapType === PCFShadowMap ) {

		shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';

	} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {

		shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';

	} else if ( parameters.shadowMapType === VSMShadowMap ) {

		shadowMapTypeDefine = 'SHADOWMAP_TYPE_VSM';

	}

	return shadowMapTypeDefine;

}

function generateEnvMapTypeDefine( parameters ) {

	let envMapTypeDefine = 'ENVMAP_TYPE_CUBE';

	if ( parameters.envMap ) {

		switch ( parameters.envMapMode ) {

			case CubeReflectionMapping:
			case CubeRefractionMapping:
				envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
				break;

			case CubeUVReflectionMapping:
			case CubeUVRefractionMapping:
				envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
				break;

		}

	}

	return envMapTypeDefine;

}

function generateEnvMapModeDefine( parameters ) {

	let envMapModeDefine = 'ENVMAP_MODE_REFLECTION';

	if ( parameters.envMap ) {

		switch ( parameters.envMapMode ) {

			case CubeRefractionMapping:
			case CubeUVRefractionMapping:

				envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
				break;

		}

	}

	return envMapModeDefine;

}

function generateEnvMapBlendingDefine( parameters ) {

	let envMapBlendingDefine = 'ENVMAP_BLENDING_NONE';

	if ( parameters.envMap ) {

		switch ( parameters.combine ) {

			case MultiplyOperation:
				envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
				break;

			case MixOperation:
				envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
				break;

			case AddOperation:
				envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
				break;

		}

	}

	return envMapBlendingDefine;

}

function WebGLProgram( renderer, cacheKey, parameters, bindingStates ) {

	// TODO Send this event to Three.js DevTools
	// console.log( 'WebGLProgram', cacheKey );

	const gl = renderer.getContext();

	const defines = parameters.defines;

	let vertexShader = parameters.vertexShader;
	let fragmentShader = parameters.fragmentShader;

	const shadowMapTypeDefine = generateShadowMapTypeDefine( parameters );
	const envMapTypeDefine = generateEnvMapTypeDefine( parameters );
	const envMapModeDefine = generateEnvMapModeDefine( parameters );
	const envMapBlendingDefine = generateEnvMapBlendingDefine( parameters );

	const customExtensions = parameters.isWebGL2 ? '' : generateExtensions( parameters );

	const customDefines = generateDefines( defines );

	const program = gl.createProgram();

	let prefixVertex, prefixFragment;
	let versionString = parameters.glslVersion ? '#version ' + parameters.glslVersion + '\n' : '';

	if ( parameters.isRawShaderMaterial ) {

		prefixVertex = [

			customDefines

		].filter( filterEmptyLine ).join( '\n' );

		if ( prefixVertex.length > 0 ) {

			prefixVertex += '\n';

		}

		prefixFragment = [

			customExtensions,
			customDefines

		].filter( filterEmptyLine ).join( '\n' );

		if ( prefixFragment.length > 0 ) {

			prefixFragment += '\n';

		}

	} else {

		prefixVertex = [

			generatePrecision( parameters ),

			'#define SHADER_NAME ' + parameters.shaderName,

			customDefines,

			parameters.instancing ? '#define USE_INSTANCING' : '',
			parameters.instancingColor ? '#define USE_INSTANCING_COLOR' : '',

			parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',

			'#define MAX_BONES ' + parameters.maxBones,
			( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
			( parameters.useFog && parameters.fogExp2 ) ? '#define FOG_EXP2' : '',

			parameters.map ? '#define USE_MAP' : '',
			parameters.envMap ? '#define USE_ENVMAP' : '',
			parameters.envMap ? '#define ' + envMapModeDefine : '',
			parameters.lightMap ? '#define USE_LIGHTMAP' : '',
			parameters.aoMap ? '#define USE_AOMAP' : '',
			parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
			parameters.bumpMap ? '#define USE_BUMPMAP' : '',
			parameters.normalMap ? '#define USE_NORMALMAP' : '',
			( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
			( parameters.normalMap && parameters.tangentSpaceNormalMap ) ? '#define TANGENTSPACE_NORMALMAP' : '',

			parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '',
			parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '',
			parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '',

			parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',

			parameters.specularMap ? '#define USE_SPECULARMAP' : '',
			parameters.specularIntensityMap ? '#define USE_SPECULARINTENSITYMAP' : '',
			parameters.specularColorMap ? '#define USE_SPECULARCOLORMAP' : '',

			parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
			parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
			parameters.alphaMap ? '#define USE_ALPHAMAP' : '',

			parameters.transmission ? '#define USE_TRANSMISSION' : '',
			parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '',
			parameters.thicknessMap ? '#define USE_THICKNESSMAP' : '',

			parameters.sheenColorMap ? '#define USE_SHEENCOLORMAP' : '',
			parameters.sheenRoughnessMap ? '#define USE_SHEENROUGHNESSMAP' : '',

			parameters.vertexTangents ? '#define USE_TANGENT' : '',
			parameters.vertexColors ? '#define USE_COLOR' : '',
			parameters.vertexAlphas ? '#define USE_COLOR_ALPHA' : '',
			parameters.vertexUvs ? '#define USE_UV' : '',
			parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '',

			parameters.flatShading ? '#define FLAT_SHADED' : '',

			parameters.skinning ? '#define USE_SKINNING' : '',
			parameters.useVertexTexture ? '#define BONE_TEXTURE' : '',

			parameters.morphTargets ? '#define USE_MORPHTARGETS' : '',
			parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',
			( parameters.morphTargets && parameters.isWebGL2 ) ? '#define MORPHTARGETS_TEXTURE' : '',
			( parameters.morphTargets && parameters.isWebGL2 ) ? '#define MORPHTARGETS_COUNT ' + parameters.morphTargetsCount : '',
			parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
			parameters.flipSided ? '#define FLIP_SIDED' : '',

			parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
			parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',

			parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',

			parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
			( parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ) ? '#define USE_LOGDEPTHBUF_EXT' : '',

			'uniform mat4 modelMatrix;',
			'uniform mat4 modelViewMatrix;',
			'uniform mat4 projectionMatrix;',
			'uniform mat4 viewMatrix;',
			'uniform mat3 normalMatrix;',
			'uniform vec3 cameraPosition;',
			'uniform bool isOrthographic;',

			'#ifdef USE_INSTANCING',

			'	attribute mat4 instanceMatrix;',

			'#endif',

			'#ifdef USE_INSTANCING_COLOR',

			'	attribute vec3 instanceColor;',

			'#endif',

			'attribute vec3 position;',
			'attribute vec3 normal;',
			'attribute vec2 uv;',

			'#ifdef USE_TANGENT',

			'	attribute vec4 tangent;',

			'#endif',

			'#if defined( USE_COLOR_ALPHA )',

			'	attribute vec4 color;',

			'#elif defined( USE_COLOR )',

			'	attribute vec3 color;',

			'#endif',

			'#if ( defined( USE_MORPHTARGETS ) && ! defined( MORPHTARGETS_TEXTURE ) )',

			'	attribute vec3 morphTarget0;',
			'	attribute vec3 morphTarget1;',
			'	attribute vec3 morphTarget2;',
			'	attribute vec3 morphTarget3;',

			'	#ifdef USE_MORPHNORMALS',

			'		attribute vec3 morphNormal0;',
			'		attribute vec3 morphNormal1;',
			'		attribute vec3 morphNormal2;',
			'		attribute vec3 morphNormal3;',

			'	#else',

			'		attribute vec3 morphTarget4;',
			'		attribute vec3 morphTarget5;',
			'		attribute vec3 morphTarget6;',
			'		attribute vec3 morphTarget7;',

			'	#endif',

			'#endif',

			'#ifdef USE_SKINNING',

			'	attribute vec4 skinIndex;',
			'	attribute vec4 skinWeight;',

			'#endif',

			'\n'

		].filter( filterEmptyLine ).join( '\n' );

		prefixFragment = [

			customExtensions,

			generatePrecision( parameters ),

			'#define SHADER_NAME ' + parameters.shaderName,

			customDefines,

			( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
			( parameters.useFog && parameters.fogExp2 ) ? '#define FOG_EXP2' : '',

			parameters.map ? '#define USE_MAP' : '',
			parameters.matcap ? '#define USE_MATCAP' : '',
			parameters.envMap ? '#define USE_ENVMAP' : '',
			parameters.envMap ? '#define ' + envMapTypeDefine : '',
			parameters.envMap ? '#define ' + envMapModeDefine : '',
			parameters.envMap ? '#define ' + envMapBlendingDefine : '',
			parameters.lightMap ? '#define USE_LIGHTMAP' : '',
			parameters.aoMap ? '#define USE_AOMAP' : '',
			parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
			parameters.bumpMap ? '#define USE_BUMPMAP' : '',
			parameters.normalMap ? '#define USE_NORMALMAP' : '',
			( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
			( parameters.normalMap && parameters.tangentSpaceNormalMap ) ? '#define TANGENTSPACE_NORMALMAP' : '',

			parameters.clearcoat ? '#define USE_CLEARCOAT' : '',
			parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '',
			parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '',
			parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '',

			parameters.specularMap ? '#define USE_SPECULARMAP' : '',
			parameters.specularIntensityMap ? '#define USE_SPECULARINTENSITYMAP' : '',
			parameters.specularColorMap ? '#define USE_SPECULARCOLORMAP' : '',
			parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
			parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',

			parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
			parameters.alphaTest ? '#define USE_ALPHATEST' : '',

			parameters.sheen ? '#define USE_SHEEN' : '',
			parameters.sheenColorMap ? '#define USE_SHEENCOLORMAP' : '',
			parameters.sheenRoughnessMap ? '#define USE_SHEENROUGHNESSMAP' : '',

			parameters.transmission ? '#define USE_TRANSMISSION' : '',
			parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '',
			parameters.thicknessMap ? '#define USE_THICKNESSMAP' : '',

			parameters.decodeVideoTexture ? '#define DECODE_VIDEO_TEXTURE' : '',

			parameters.vertexTangents ? '#define USE_TANGENT' : '',
			parameters.vertexColors || parameters.instancingColor ? '#define USE_COLOR' : '',
			parameters.vertexAlphas ? '#define USE_COLOR_ALPHA' : '',
			parameters.vertexUvs ? '#define USE_UV' : '',
			parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '',

			parameters.gradientMap ? '#define USE_GRADIENTMAP' : '',

			parameters.flatShading ? '#define FLAT_SHADED' : '',

			parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
			parameters.flipSided ? '#define FLIP_SIDED' : '',

			parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
			parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',

			parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '',

			parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '',

			parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
			( parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ) ? '#define USE_LOGDEPTHBUF_EXT' : '',

			( ( parameters.extensionShaderTextureLOD || parameters.envMap ) && parameters.rendererExtensionShaderTextureLod ) ? '#define TEXTURE_LOD_EXT' : '',

			'uniform mat4 viewMatrix;',
			'uniform vec3 cameraPosition;',
			'uniform bool isOrthographic;',

			( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '',
			( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below
			( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '',

			parameters.dithering ? '#define DITHERING' : '',
			parameters.transparent ? '' : '#define OPAQUE',

			ShaderChunk[ 'encodings_pars_fragment' ], // this code is required here because it is used by the various encoding/decoding function defined below
			getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ),

			parameters.depthPacking ? '#define DEPTH_PACKING ' + parameters.depthPacking : '',

			'\n'

		].filter( filterEmptyLine ).join( '\n' );

	}

	vertexShader = resolveIncludes( vertexShader );
	vertexShader = replaceLightNums( vertexShader, parameters );
	vertexShader = replaceClippingPlaneNums( vertexShader, parameters );

	fragmentShader = resolveIncludes( fragmentShader );
	fragmentShader = replaceLightNums( fragmentShader, parameters );
	fragmentShader = replaceClippingPlaneNums( fragmentShader, parameters );

	vertexShader = unrollLoops( vertexShader );
	fragmentShader = unrollLoops( fragmentShader );

	if ( parameters.isWebGL2 && parameters.isRawShaderMaterial !== true ) {

		// GLSL 3.0 conversion for built-in materials and ShaderMaterial

		versionString = '#version 300 es\n';

		prefixVertex = [
			'precision mediump sampler2DArray;',
			'#define attribute in',
			'#define varying out',
			'#define texture2D texture'
		].join( '\n' ) + '\n' + prefixVertex;

		prefixFragment = [
			'#define varying in',
			( parameters.glslVersion === GLSL3 ) ? '' : 'layout(location = 0) out highp vec4 pc_fragColor;',
			( parameters.glslVersion === GLSL3 ) ? '' : '#define gl_FragColor pc_fragColor',
			'#define gl_FragDepthEXT gl_FragDepth',
			'#define texture2D texture',
			'#define textureCube texture',
			'#define texture2DProj textureProj',
			'#define texture2DLodEXT textureLod',
			'#define texture2DProjLodEXT textureProjLod',
			'#define textureCubeLodEXT textureLod',
			'#define texture2DGradEXT textureGrad',
			'#define texture2DProjGradEXT textureProjGrad',
			'#define textureCubeGradEXT textureGrad'
		].join( '\n' ) + '\n' + prefixFragment;

	}

	const vertexGlsl = versionString + prefixVertex + vertexShader;
	const fragmentGlsl = versionString + prefixFragment + fragmentShader;

	// console.log( '*VERTEX*', vertexGlsl );
	// console.log( '*FRAGMENT*', fragmentGlsl );

	const glVertexShader = WebGLShader( gl, 35633, vertexGlsl );
	const glFragmentShader = WebGLShader( gl, 35632, fragmentGlsl );

	gl.attachShader( program, glVertexShader );
	gl.attachShader( program, glFragmentShader );

	// Force a particular attribute to index 0.

	if ( parameters.index0AttributeName !== undefined ) {

		gl.bindAttribLocation( program, 0, parameters.index0AttributeName );

	} else if ( parameters.morphTargets === true ) {

		// programs with morphTargets displace position out of attribute 0
		gl.bindAttribLocation( program, 0, 'position' );

	}

	gl.linkProgram( program );

	// check for link errors
	if ( renderer.debug.checkShaderErrors ) {

		const programLog = gl.getProgramInfoLog( program ).trim();
		const vertexLog = gl.getShaderInfoLog( glVertexShader ).trim();
		const fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim();

		let runnable = true;
		let haveDiagnostics = true;

		if ( gl.getProgramParameter( program, 35714 ) === false ) {

			runnable = false;

			const vertexErrors = getShaderErrors( gl, glVertexShader, 'vertex' );
			const fragmentErrors = getShaderErrors( gl, glFragmentShader, 'fragment' );

			console.error(
				'THREE.WebGLProgram: Shader Error ' + gl.getError() + ' - ' +
				'VALIDATE_STATUS ' + gl.getProgramParameter( program, 35715 ) + '\n\n' +
				'Program Info Log: ' + programLog + '\n' +
				vertexErrors + '\n' +
				fragmentErrors
			);

		} else if ( programLog !== '' ) {

			console.warn( 'THREE.WebGLProgram: Program Info Log:', programLog );

		} else if ( vertexLog === '' || fragmentLog === '' ) {

			haveDiagnostics = false;

		}

		if ( haveDiagnostics ) {

			this.diagnostics = {

				runnable: runnable,

				programLog: programLog,

				vertexShader: {

					log: vertexLog,
					prefix: prefixVertex

				},

				fragmentShader: {

					log: fragmentLog,
					prefix: prefixFragment

				}

			};

		}

	}

	// Clean up

	// Crashes in iOS9 and iOS10. #18402
	// gl.detachShader( program, glVertexShader );
	// gl.detachShader( program, glFragmentShader );

	gl.deleteShader( glVertexShader );
	gl.deleteShader( glFragmentShader );

	// set up caching for uniform locations

	let cachedUniforms;

	this.getUniforms = function () {

		if ( cachedUniforms === undefined ) {

			cachedUniforms = new WebGLUniforms( gl, program );

		}

		return cachedUniforms;

	};

	// set up caching for attribute locations

	let cachedAttributes;

	this.getAttributes = function () {

		if ( cachedAttributes === undefined ) {

			cachedAttributes = fetchAttributeLocations( gl, program );

		}

		return cachedAttributes;

	};

	// free resource

	this.destroy = function () {

		bindingStates.releaseStatesOfProgram( this );

		gl.deleteProgram( program );
		this.program = undefined;

	};

	//

	this.name = parameters.shaderName;
	this.id = programIdCount ++;
	this.cacheKey = cacheKey;
	this.usedTimes = 1;
	this.program = program;
	this.vertexShader = glVertexShader;
	this.fragmentShader = glFragmentShader;

	return this;

}

let _id = 0;

class WebGLShaderCache {

	constructor() {

		this.shaderCache = new Map();
		this.materialCache = new Map();

	}

	update( material ) {

		const vertexShader = material.vertexShader;
		const fragmentShader = material.fragmentShader;

		const vertexShaderStage = this._getShaderStage( vertexShader );
		const fragmentShaderStage = this._getShaderStage( fragmentShader );

		const materialShaders = this._getShaderCacheForMaterial( material );

		if ( materialShaders.has( vertexShaderStage ) === false ) {

			materialShaders.add( vertexShaderStage );
			vertexShaderStage.usedTimes ++;

		}

		if ( materialShaders.has( fragmentShaderStage ) === false ) {

			materialShaders.add( fragmentShaderStage );
			fragmentShaderStage.usedTimes ++;

		}

		return this;

	}

	remove( material ) {

		const materialShaders = this.materialCache.get( material );

		for ( const shaderStage of materialShaders ) {

			shaderStage.usedTimes --;

			if ( shaderStage.usedTimes === 0 ) this.shaderCache.delete( shaderStage );

		}

		this.materialCache.delete( material );

		return this;

	}

	getVertexShaderID( material ) {

		return this._getShaderStage( material.vertexShader ).id;

	}

	getFragmentShaderID( material ) {

		return this._getShaderStage( material.fragmentShader ).id;

	}

	dispose() {

		this.shaderCache.clear();
		this.materialCache.clear();

	}

	_getShaderCacheForMaterial( material ) {

		const cache = this.materialCache;

		if ( cache.has( material ) === false ) {

			cache.set( material, new Set() );

		}

		return cache.get( material );

	}

	_getShaderStage( code ) {

		const cache = this.shaderCache;

		if ( cache.has( code ) === false ) {

			const stage = new WebGLShaderStage();
			cache.set( code, stage );

		}

		return cache.get( code );

	}

}

class WebGLShaderStage {

	constructor() {

		this.id = _id ++;

		this.usedTimes = 0;

	}

}

function WebGLPrograms( renderer, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping ) {

	const _programLayers = new Layers();
	const _customShaders = new WebGLShaderCache();
	const programs = [];

	const isWebGL2 = capabilities.isWebGL2;
	const logarithmicDepthBuffer = capabilities.logarithmicDepthBuffer;
	const floatVertexTextures = capabilities.floatVertexTextures;
	const maxVertexUniforms = capabilities.maxVertexUniforms;
	const vertexTextures = capabilities.vertexTextures;
	let precision = capabilities.precision;

	const shaderIDs = {
		MeshDepthMaterial: 'depth',
		MeshDistanceMaterial: 'distanceRGBA',
		MeshNormalMaterial: 'normal',
		MeshBasicMaterial: 'basic',
		MeshLambertMaterial: 'lambert',
		MeshPhongMaterial: 'phong',
		MeshToonMaterial: 'toon',
		MeshStandardMaterial: 'physical',
		MeshPhysicalMaterial: 'physical',
		MeshMatcapMaterial: 'matcap',
		LineBasicMaterial: 'basic',
		LineDashedMaterial: 'dashed',
		PointsMaterial: 'points',
		ShadowMaterial: 'shadow',
		SpriteMaterial: 'sprite'
	};

	function getMaxBones( object ) {

		const skeleton = object.skeleton;
		const bones = skeleton.bones;

		if ( floatVertexTextures ) {

			return 1024;

		} else {

			// default for when object is not specified
			// ( for example when prebuilding shader to be used with multiple objects )
			//
			//  - leave some extra space for other uniforms
			//  - limit here is ANGLE's 254 max uniform vectors
			//    (up to 54 should be safe)

			const nVertexUniforms = maxVertexUniforms;
			const nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );

			const maxBones = Math.min( nVertexMatrices, bones.length );

			if ( maxBones < bones.length ) {

				console.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' );
				return 0;

			}

			return maxBones;

		}

	}

	function getParameters( material, lights, shadows, scene, object ) {

		const fog = scene.fog;
		const environment = material.isMeshStandardMaterial ? scene.environment : null;

		const envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || environment );

		const shaderID = shaderIDs[ material.type ];

		// heuristics to create shader parameters according to lights in the scene
		// (not to blow over maxLights budget)

		const maxBones = object.isSkinnedMesh ? getMaxBones( object ) : 0;

		if ( material.precision !== null ) {

			precision = capabilities.getMaxPrecision( material.precision );

			if ( precision !== material.precision ) {

				console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );

			}

		}

		let vertexShader, fragmentShader;
		let customVertexShaderID, customFragmentShaderID;

		if ( shaderID ) {

			const shader = ShaderLib[ shaderID ];

			vertexShader = shader.vertexShader;
			fragmentShader = shader.fragmentShader;

		} else {

			vertexShader = material.vertexShader;
			fragmentShader = material.fragmentShader;

			_customShaders.update( material );

			customVertexShaderID = _customShaders.getVertexShaderID( material );
			customFragmentShaderID = _customShaders.getFragmentShaderID( material );

		}

		const currentRenderTarget = renderer.getRenderTarget();

		const useAlphaTest = material.alphaTest > 0;
		const useClearcoat = material.clearcoat > 0;

		const parameters = {

			isWebGL2: isWebGL2,

			shaderID: shaderID,
			shaderName: material.type,

			vertexShader: vertexShader,
			fragmentShader: fragmentShader,
			defines: material.defines,

			customVertexShaderID: customVertexShaderID,
			customFragmentShaderID: customFragmentShaderID,

			isRawShaderMaterial: material.isRawShaderMaterial === true,
			glslVersion: material.glslVersion,

			precision: precision,

			instancing: object.isInstancedMesh === true,
			instancingColor: object.isInstancedMesh === true && object.instanceColor !== null,

			supportsVertexTextures: vertexTextures,
			outputEncoding: ( currentRenderTarget === null ) ? renderer.outputEncoding : ( currentRenderTarget.isXRRenderTarget === true ? currentRenderTarget.texture.encoding : LinearEncoding ),
			map: !! material.map,
			matcap: !! material.matcap,
			envMap: !! envMap,
			envMapMode: envMap && envMap.mapping,
			envMapCubeUV: ( !! envMap ) && ( ( envMap.mapping === CubeUVReflectionMapping ) || ( envMap.mapping === CubeUVRefractionMapping ) ),
			lightMap: !! material.lightMap,
			aoMap: !! material.aoMap,
			emissiveMap: !! material.emissiveMap,
			bumpMap: !! material.bumpMap,
			normalMap: !! material.normalMap,
			objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,
			tangentSpaceNormalMap: material.normalMapType === TangentSpaceNormalMap,

			decodeVideoTexture: !! material.map && ( material.map.isVideoTexture === true ) && ( material.map.encoding === sRGBEncoding ),

			clearcoat: useClearcoat,
			clearcoatMap: useClearcoat && !! material.clearcoatMap,
			clearcoatRoughnessMap: useClearcoat && !! material.clearcoatRoughnessMap,
			clearcoatNormalMap: useClearcoat && !! material.clearcoatNormalMap,

			displacementMap: !! material.displacementMap,
			roughnessMap: !! material.roughnessMap,
			metalnessMap: !! material.metalnessMap,
			specularMap: !! material.specularMap,
			specularIntensityMap: !! material.specularIntensityMap,
			specularColorMap: !! material.specularColorMap,

			transparent: material.transparent,

			alphaMap: !! material.alphaMap,
			alphaTest: useAlphaTest,

			gradientMap: !! material.gradientMap,

			sheen: material.sheen > 0,
			sheenColorMap: !! material.sheenColorMap,
			sheenRoughnessMap: !! material.sheenRoughnessMap,

			transmission: material.transmission > 0,
			transmissionMap: !! material.transmissionMap,
			thicknessMap: !! material.thicknessMap,

			combine: material.combine,

			vertexTangents: ( !! material.normalMap && !! object.geometry && !! object.geometry.attributes.tangent ),
			vertexColors: material.vertexColors,
			vertexAlphas: material.vertexColors === true && !! object.geometry && !! object.geometry.attributes.color && object.geometry.attributes.color.itemSize === 4,
			vertexUvs: !! material.map || !! material.bumpMap || !! material.normalMap || !! material.specularMap || !! material.alphaMap || !! material.emissiveMap || !! material.roughnessMap || !! material.metalnessMap || !! material.clearcoatMap || !! material.clearcoatRoughnessMap || !! material.clearcoatNormalMap || !! material.displacementMap || !! material.transmissionMap || !! material.thicknessMap || !! material.specularIntensityMap || !! material.specularColorMap || !! material.sheenColorMap || !! material.sheenRoughnessMap,
			uvsVertexOnly: ! ( !! material.map || !! material.bumpMap || !! material.normalMap || !! material.specularMap || !! material.alphaMap || !! material.emissiveMap || !! material.roughnessMap || !! material.metalnessMap || !! material.clearcoatNormalMap || material.transmission > 0 || !! material.transmissionMap || !! material.thicknessMap || !! material.specularIntensityMap || !! material.specularColorMap || material.sheen > 0 || !! material.sheenColorMap || !! material.sheenRoughnessMap ) && !! material.displacementMap,

			fog: !! fog,
			useFog: material.fog,
			fogExp2: ( fog && fog.isFogExp2 ),

			flatShading: !! material.flatShading,

			sizeAttenuation: material.sizeAttenuation,
			logarithmicDepthBuffer: logarithmicDepthBuffer,

			skinning: object.isSkinnedMesh === true && maxBones > 0,
			maxBones: maxBones,
			useVertexTexture: floatVertexTextures,

			morphTargets: !! object.geometry && !! object.geometry.morphAttributes.position,
			morphNormals: !! object.geometry && !! object.geometry.morphAttributes.normal,
			morphTargetsCount: ( !! object.geometry && !! object.geometry.morphAttributes.position ) ? object.geometry.morphAttributes.position.length : 0,

			numDirLights: lights.directional.length,
			numPointLights: lights.point.length,
			numSpotLights: lights.spot.length,
			numRectAreaLights: lights.rectArea.length,
			numHemiLights: lights.hemi.length,

			numDirLightShadows: lights.directionalShadowMap.length,
			numPointLightShadows: lights.pointShadowMap.length,
			numSpotLightShadows: lights.spotShadowMap.length,

			numClippingPlanes: clipping.numPlanes,
			numClipIntersection: clipping.numIntersection,

			dithering: material.dithering,

			shadowMapEnabled: renderer.shadowMap.enabled && shadows.length > 0,
			shadowMapType: renderer.shadowMap.type,

			toneMapping: material.toneMapped ? renderer.toneMapping : NoToneMapping,
			physicallyCorrectLights: renderer.physicallyCorrectLights,

			premultipliedAlpha: material.premultipliedAlpha,

			doubleSided: material.side === DoubleSide,
			flipSided: material.side === BackSide,

			depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false,

			index0AttributeName: material.index0AttributeName,

			extensionDerivatives: material.extensions && material.extensions.derivatives,
			extensionFragDepth: material.extensions && material.extensions.fragDepth,
			extensionDrawBuffers: material.extensions && material.extensions.drawBuffers,
			extensionShaderTextureLOD: material.extensions && material.extensions.shaderTextureLOD,

			rendererExtensionFragDepth: isWebGL2 || extensions.has( 'EXT_frag_depth' ),
			rendererExtensionDrawBuffers: isWebGL2 || extensions.has( 'WEBGL_draw_buffers' ),
			rendererExtensionShaderTextureLod: isWebGL2 || extensions.has( 'EXT_shader_texture_lod' ),

			customProgramCacheKey: material.customProgramCacheKey()

		};

		return parameters;

	}

	function getProgramCacheKey( parameters ) {

		const array = [];

		if ( parameters.shaderID ) {

			array.push( parameters.shaderID );

		} else {

			array.push( parameters.customVertexShaderID );
			array.push( parameters.customFragmentShaderID );

		}

		if ( parameters.defines !== undefined ) {

			for ( const name in parameters.defines ) {

				array.push( name );
				array.push( parameters.defines[ name ] );

			}

		}

		if ( parameters.isRawShaderMaterial === false ) {

			getProgramCacheKeyParameters( array, parameters );
			getProgramCacheKeyBooleans( array, parameters );
			array.push( renderer.outputEncoding );

		}

		array.push( parameters.customProgramCacheKey );

		return array.join();

	}

	function getProgramCacheKeyParameters( array, parameters ) {

		array.push( parameters.precision );
		array.push( parameters.outputEncoding );
		array.push( parameters.envMapMode );
		array.push( parameters.combine );
		array.push( parameters.vertexUvs );
		array.push( parameters.fogExp2 );
		array.push( parameters.sizeAttenuation );
		array.push( parameters.maxBones );
		array.push( parameters.morphTargetsCount );
		array.push( parameters.numDirLights );
		array.push( parameters.numPointLights );
		array.push( parameters.numSpotLights );
		array.push( parameters.numHemiLights );
		array.push( parameters.numRectAreaLights );
		array.push( parameters.numDirLightShadows );
		array.push( parameters.numPointLightShadows );
		array.push( parameters.numSpotLightShadows );
		array.push( parameters.shadowMapType );
		array.push( parameters.toneMapping );
		array.push( parameters.numClippingPlanes );
		array.push( parameters.numClipIntersection );

	}

	function getProgramCacheKeyBooleans( array, parameters ) {

		_programLayers.disableAll();

		if ( parameters.isWebGL2 )
			_programLayers.enable( 0 );
		if ( parameters.supportsVertexTextures )
			_programLayers.enable( 1 );
		if ( parameters.instancing )
			_programLayers.enable( 2 );
		if ( parameters.instancingColor )
			_programLayers.enable( 3 );
		if ( parameters.map )
			_programLayers.enable( 4 );
		if ( parameters.matcap )
			_programLayers.enable( 5 );
		if ( parameters.envMap )
			_programLayers.enable( 6 );
		if ( parameters.envMapCubeUV )
			_programLayers.enable( 7 );
		if ( parameters.lightMap )
			_programLayers.enable( 8 );
		if ( parameters.aoMap )
			_programLayers.enable( 9 );
		if ( parameters.emissiveMap )
			_programLayers.enable( 10 );
		if ( parameters.bumpMap )
			_programLayers.enable( 11 );
		if ( parameters.normalMap )
			_programLayers.enable( 12 );
		if ( parameters.objectSpaceNormalMap )
			_programLayers.enable( 13 );
		if ( parameters.tangentSpaceNormalMap )
			_programLayers.enable( 14 );
		if ( parameters.clearcoat )
			_programLayers.enable( 15 );
		if ( parameters.clearcoatMap )
			_programLayers.enable( 16 );
		if ( parameters.clearcoatRoughnessMap )
			_programLayers.enable( 17 );
		if ( parameters.clearcoatNormalMap )
			_programLayers.enable( 18 );
		if ( parameters.displacementMap )
			_programLayers.enable( 19 );
		if ( parameters.specularMap )
			_programLayers.enable( 20 );
		if ( parameters.roughnessMap )
			_programLayers.enable( 21 );
		if ( parameters.metalnessMap )
			_programLayers.enable( 22 );
		if ( parameters.gradientMap )
			_programLayers.enable( 23 );
		if ( parameters.alphaMap )
			_programLayers.enable( 24 );
		if ( parameters.alphaTest )
			_programLayers.enable( 25 );
		if ( parameters.vertexColors )
			_programLayers.enable( 26 );
		if ( parameters.vertexAlphas )
			_programLayers.enable( 27 );
		if ( parameters.vertexUvs )
			_programLayers.enable( 28 );
		if ( parameters.vertexTangents )
			_programLayers.enable( 29 );
		if ( parameters.uvsVertexOnly )
			_programLayers.enable( 30 );
		if ( parameters.fog )
			_programLayers.enable( 31 );

		array.push( _programLayers.mask );
		_programLayers.disableAll();

		if ( parameters.useFog )
			_programLayers.enable( 0 );
		if ( parameters.flatShading )
			_programLayers.enable( 1 );
		if ( parameters.logarithmicDepthBuffer )
			_programLayers.enable( 2 );
		if ( parameters.skinning )
			_programLayers.enable( 3 );
		if ( parameters.useVertexTexture )
			_programLayers.enable( 4 );
		if ( parameters.morphTargets )
			_programLayers.enable( 5 );
		if ( parameters.morphNormals )
			_programLayers.enable( 6 );
		if ( parameters.premultipliedAlpha )
			_programLayers.enable( 7 );
		if ( parameters.shadowMapEnabled )
			_programLayers.enable( 8 );
		if ( parameters.physicallyCorrectLights )
			_programLayers.enable( 9 );
		if ( parameters.doubleSided )
			_programLayers.enable( 10 );
		if ( parameters.flipSided )
			_programLayers.enable( 11 );
		if ( parameters.depthPacking )
			_programLayers.enable( 12 );
		if ( parameters.dithering )
			_programLayers.enable( 13 );
		if ( parameters.specularIntensityMap )
			_programLayers.enable( 14 );
		if ( parameters.specularColorMap )
			_programLayers.enable( 15 );
		if ( parameters.transmission )
			_programLayers.enable( 16 );
		if ( parameters.transmissionMap )
			_programLayers.enable( 17 );
		if ( parameters.thicknessMap )
			_programLayers.enable( 18 );
		if ( parameters.sheen )
			_programLayers.enable( 19 );
		if ( parameters.sheenColorMap )
			_programLayers.enable( 20 );
		if ( parameters.sheenRoughnessMap )
			_programLayers.enable( 21 );
		if ( parameters.decodeVideoTexture )
			_programLayers.enable( 22 );
		if ( parameters.transparent )
			_programLayers.enable( 23 );

		array.push( _programLayers.mask );

	}

	function getUniforms( material ) {

		const shaderID = shaderIDs[ material.type ];
		let uniforms;

		if ( shaderID ) {

			const shader = ShaderLib[ shaderID ];
			uniforms = UniformsUtils.clone( shader.uniforms );

		} else {

			uniforms = material.uniforms;

		}

		return uniforms;

	}

	function acquireProgram( parameters, cacheKey ) {

		let program;

		// Check if code has been already compiled
		for ( let p = 0, pl = programs.length; p < pl; p ++ ) {

			const preexistingProgram = programs[ p ];

			if ( preexistingProgram.cacheKey === cacheKey ) {

				program = preexistingProgram;
				++ program.usedTimes;

				break;

			}

		}

		if ( program === undefined ) {

			program = new WebGLProgram( renderer, cacheKey, parameters, bindingStates );
			programs.push( program );

		}

		return program;

	}

	function releaseProgram( program ) {

		if ( -- program.usedTimes === 0 ) {

			// Remove from unordered set
			const i = programs.indexOf( program );
			programs[ i ] = programs[ programs.length - 1 ];
			programs.pop();

			// Free WebGL resources
			program.destroy();

		}

	}

	function releaseShaderCache( material ) {

		_customShaders.remove( material );

	}

	function dispose() {

		_customShaders.dispose();

	}

	return {
		getParameters: getParameters,
		getProgramCacheKey: getProgramCacheKey,
		getUniforms: getUniforms,
		acquireProgram: acquireProgram,
		releaseProgram: releaseProgram,
		releaseShaderCache: releaseShaderCache,
		// Exposed for resource monitoring & error feedback via renderer.info:
		programs: programs,
		dispose: dispose
	};

}

function WebGLProperties() {

	let properties = new WeakMap();

	function get( object ) {

		let map = properties.get( object );

		if ( map === undefined ) {

			map = {};
			properties.set( object, map );

		}

		return map;

	}

	function remove( object ) {

		properties.delete( object );

	}

	function update( object, key, value ) {

		properties.get( object )[ key ] = value;

	}

	function dispose() {

		properties = new WeakMap();

	}

	return {
		get: get,
		remove: remove,
		update: update,
		dispose: dispose
	};

}

function painterSortStable( a, b ) {

	if ( a.groupOrder !== b.groupOrder ) {

		return a.groupOrder - b.groupOrder;

	} else if ( a.renderOrder !== b.renderOrder ) {

		return a.renderOrder - b.renderOrder;

	} else if ( a.material.id !== b.material.id ) {

		return a.material.id - b.material.id;

	} else if ( a.z !== b.z ) {

		return a.z - b.z;

	} else {

		return a.id - b.id;

	}

}

function reversePainterSortStable( a, b ) {

	if ( a.groupOrder !== b.groupOrder ) {

		return a.groupOrder - b.groupOrder;

	} else if ( a.renderOrder !== b.renderOrder ) {

		return a.renderOrder - b.renderOrder;

	} else if ( a.z !== b.z ) {

		return b.z - a.z;

	} else {

		return a.id - b.id;

	}

}


function WebGLRenderList() {

	const renderItems = [];
	let renderItemsIndex = 0;

	const opaque = [];
	const transmissive = [];
	const transparent = [];

	function init() {

		renderItemsIndex = 0;

		opaque.length = 0;
		transmissive.length = 0;
		transparent.length = 0;

	}

	function getNextRenderItem( object, geometry, material, groupOrder, z, group ) {

		let renderItem = renderItems[ renderItemsIndex ];

		if ( renderItem === undefined ) {

			renderItem = {
				id: object.id,
				object: object,
				geometry: geometry,
				material: material,
				groupOrder: groupOrder,
				renderOrder: object.renderOrder,
				z: z,
				group: group
			};

			renderItems[ renderItemsIndex ] = renderItem;

		} else {

			renderItem.id = object.id;
			renderItem.object = object;
			renderItem.geometry = geometry;
			renderItem.material = material;
			renderItem.groupOrder = groupOrder;
			renderItem.renderOrder = object.renderOrder;
			renderItem.z = z;
			renderItem.group = group;

		}

		renderItemsIndex ++;

		return renderItem;

	}

	function push( object, geometry, material, groupOrder, z, group ) {

		const renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group );

		if ( material.transmission > 0.0 ) {

			transmissive.push( renderItem );

		} else if ( material.transparent === true ) {

			transparent.push( renderItem );

		} else {

			opaque.push( renderItem );

		}

	}

	function unshift( object, geometry, material, groupOrder, z, group ) {

		const renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group );

		if ( material.transmission > 0.0 ) {

			transmissive.unshift( renderItem );

		} else if ( material.transparent === true ) {

			transparent.unshift( renderItem );

		} else {

			opaque.unshift( renderItem );

		}

	}

	function sort( customOpaqueSort, customTransparentSort ) {

		if ( opaque.length > 1 ) opaque.sort( customOpaqueSort || painterSortStable );
		if ( transmissive.length > 1 ) transmissive.sort( customTransparentSort || reversePainterSortStable );
		if ( transparent.length > 1 ) transparent.sort( customTransparentSort || reversePainterSortStable );

	}

	function finish() {

		// Clear references from inactive renderItems in the list

		for ( let i = renderItemsIndex, il = renderItems.length; i < il; i ++ ) {

			const renderItem = renderItems[ i ];

			if ( renderItem.id === null ) break;

			renderItem.id = null;
			renderItem.object = null;
			renderItem.geometry = null;
			renderItem.material = null;
			renderItem.group = null;

		}

	}

	return {

		opaque: opaque,
		transmissive: transmissive,
		transparent: transparent,

		init: init,
		push: push,
		unshift: unshift,
		finish: finish,

		sort: sort
	};

}

function WebGLRenderLists() {

	let lists = new WeakMap();

	function get( scene, renderCallDepth ) {

		let list;

		if ( lists.has( scene ) === false ) {

			list = new WebGLRenderList();
			lists.set( scene, [ list ] );

		} else {

			if ( renderCallDepth >= lists.get( scene ).length ) {

				list = new WebGLRenderList();
				lists.get( scene ).push( list );

			} else {

				list = lists.get( scene )[ renderCallDepth ];

			}

		}

		return list;

	}

	function dispose() {

		lists = new WeakMap();

	}

	return {
		get: get,
		dispose: dispose
	};

}

function UniformsCache() {

	const lights = {};

	return {

		get: function ( light ) {

			if ( lights[ light.id ] !== undefined ) {

				return lights[ light.id ];

			}

			let uniforms;

			switch ( light.type ) {

				case 'DirectionalLight':
					uniforms = {
						direction: new Vector3(),
						color: new Color()
					};
					break;

				case 'SpotLight':
					uniforms = {
						position: new Vector3(),
						direction: new Vector3(),
						color: new Color(),
						distance: 0,
						coneCos: 0,
						penumbraCos: 0,
						decay: 0
					};
					break;

				case 'PointLight':
					uniforms = {
						position: new Vector3(),
						color: new Color(),
						distance: 0,
						decay: 0
					};
					break;

				case 'HemisphereLight':
					uniforms = {
						direction: new Vector3(),
						skyColor: new Color(),
						groundColor: new Color()
					};
					break;

				case 'RectAreaLight':
					uniforms = {
						color: new Color(),
						position: new Vector3(),
						halfWidth: new Vector3(),
						halfHeight: new Vector3()
					};
					break;

			}

			lights[ light.id ] = uniforms;

			return uniforms;

		}

	};

}

function ShadowUniformsCache() {

	const lights = {};

	return {

		get: function ( light ) {

			if ( lights[ light.id ] !== undefined ) {

				return lights[ light.id ];

			}

			let uniforms;

			switch ( light.type ) {

				case 'DirectionalLight':
					uniforms = {
						shadowBias: 0,
						shadowNormalBias: 0,
						shadowRadius: 1,
						shadowMapSize: new Vector2()
					};
					break;

				case 'SpotLight':
					uniforms = {
						shadowBias: 0,
						shadowNormalBias: 0,
						shadowRadius: 1,
						shadowMapSize: new Vector2()
					};
					break;

				case 'PointLight':
					uniforms = {
						shadowBias: 0,
						shadowNormalBias: 0,
						shadowRadius: 1,
						shadowMapSize: new Vector2(),
						shadowCameraNear: 1,
						shadowCameraFar: 1000
					};
					break;

				// TODO (abelnation): set RectAreaLight shadow uniforms

			}

			lights[ light.id ] = uniforms;

			return uniforms;

		}

	};

}



let nextVersion = 0;

function shadowCastingLightsFirst( lightA, lightB ) {

	return ( lightB.castShadow ? 1 : 0 ) - ( lightA.castShadow ? 1 : 0 );

}

function WebGLLights( extensions, capabilities ) {

	const cache = new UniformsCache();

	const shadowCache = ShadowUniformsCache();

	const state = {

		version: 0,

		hash: {
			directionalLength: - 1,
			pointLength: - 1,
			spotLength: - 1,
			rectAreaLength: - 1,
			hemiLength: - 1,

			numDirectionalShadows: - 1,
			numPointShadows: - 1,
			numSpotShadows: - 1
		},

		ambient: [ 0, 0, 0 ],
		probe: [],
		directional: [],
		directionalShadow: [],
		directionalShadowMap: [],
		directionalShadowMatrix: [],
		spot: [],
		spotShadow: [],
		spotShadowMap: [],
		spotShadowMatrix: [],
		rectArea: [],
		rectAreaLTC1: null,
		rectAreaLTC2: null,
		point: [],
		pointShadow: [],
		pointShadowMap: [],
		pointShadowMatrix: [],
		hemi: []

	};

	for ( let i = 0; i < 9; i ++ ) state.probe.push( new Vector3() );

	const vector3 = new Vector3();
	const matrix4 = new Matrix4();
	const matrix42 = new Matrix4();

	function setup( lights, physicallyCorrectLights ) {

		let r = 0, g = 0, b = 0;

		for ( let i = 0; i < 9; i ++ ) state.probe[ i ].set( 0, 0, 0 );

		let directionalLength = 0;
		let pointLength = 0;
		let spotLength = 0;
		let rectAreaLength = 0;
		let hemiLength = 0;

		let numDirectionalShadows = 0;
		let numPointShadows = 0;
		let numSpotShadows = 0;

		lights.sort( shadowCastingLightsFirst );

		// artist-friendly light intensity scaling factor
		const scaleFactor = ( physicallyCorrectLights !== true ) ? Math.PI : 1;

		for ( let i = 0, l = lights.length; i < l; i ++ ) {

			const light = lights[ i ];

			const color = light.color;
			const intensity = light.intensity;
			const distance = light.distance;

			const shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;

			if ( light.isAmbientLight ) {

				r += color.r * intensity * scaleFactor;
				g += color.g * intensity * scaleFactor;
				b += color.b * intensity * scaleFactor;

			} else if ( light.isLightProbe ) {

				for ( let j = 0; j < 9; j ++ ) {

					state.probe[ j ].addScaledVector( light.sh.coefficients[ j ], intensity );

				}

			} else if ( light.isDirectionalLight ) {

				const uniforms = cache.get( light );

				uniforms.color.copy( light.color ).multiplyScalar( light.intensity * scaleFactor );

				if ( light.castShadow ) {

					const shadow = light.shadow;

					const shadowUniforms = shadowCache.get( light );

					shadowUniforms.shadowBias = shadow.bias;
					shadowUniforms.shadowNormalBias = shadow.normalBias;
					shadowUniforms.shadowRadius = shadow.radius;
					shadowUniforms.shadowMapSize = shadow.mapSize;

					state.directionalShadow[ directionalLength ] = shadowUniforms;
					state.directionalShadowMap[ directionalLength ] = shadowMap;
					state.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;

					numDirectionalShadows ++;

				}

				state.directional[ directionalLength ] = uniforms;

				directionalLength ++;

			} else if ( light.isSpotLight ) {

				const uniforms = cache.get( light );

				uniforms.position.setFromMatrixPosition( light.matrixWorld );

				uniforms.color.copy( color ).multiplyScalar( intensity * scaleFactor );
				uniforms.distance = distance;

				uniforms.coneCos = Math.cos( light.angle );
				uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );
				uniforms.decay = light.decay;

				if ( light.castShadow ) {

					const shadow = light.shadow;

					const shadowUniforms = shadowCache.get( light );

					shadowUniforms.shadowBias = shadow.bias;
					shadowUniforms.shadowNormalBias = shadow.normalBias;
					shadowUniforms.shadowRadius = shadow.radius;
					shadowUniforms.shadowMapSize = shadow.mapSize;

					state.spotShadow[ spotLength ] = shadowUniforms;
					state.spotShadowMap[ spotLength ] = shadowMap;
					state.spotShadowMatrix[ spotLength ] = light.shadow.matrix;

					numSpotShadows ++;

				}

				state.spot[ spotLength ] = uniforms;

				spotLength ++;

			} else if ( light.isRectAreaLight ) {

				const uniforms = cache.get( light );

				// (a) intensity is the total visible light emitted
				//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );

				// (b) intensity is the brightness of the light
				uniforms.color.copy( color ).multiplyScalar( intensity );

				uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );
				uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );

				state.rectArea[ rectAreaLength ] = uniforms;

				rectAreaLength ++;

			} else if ( light.isPointLight ) {

				const uniforms = cache.get( light );

				uniforms.color.copy( light.color ).multiplyScalar( light.intensity * scaleFactor );
				uniforms.distance = light.distance;
				uniforms.decay = light.decay;

				if ( light.castShadow ) {

					const shadow = light.shadow;

					const shadowUniforms = shadowCache.get( light );

					shadowUniforms.shadowBias = shadow.bias;
					shadowUniforms.shadowNormalBias = shadow.normalBias;
					shadowUniforms.shadowRadius = shadow.radius;
					shadowUniforms.shadowMapSize = shadow.mapSize;
					shadowUniforms.shadowCameraNear = shadow.camera.near;
					shadowUniforms.shadowCameraFar = shadow.camera.far;

					state.pointShadow[ pointLength ] = shadowUniforms;
					state.pointShadowMap[ pointLength ] = shadowMap;
					state.pointShadowMatrix[ pointLength ] = light.shadow.matrix;

					numPointShadows ++;

				}

				state.point[ pointLength ] = uniforms;

				pointLength ++;

			} else if ( light.isHemisphereLight ) {

				const uniforms = cache.get( light );

				uniforms.skyColor.copy( light.color ).multiplyScalar( intensity * scaleFactor );
				uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity * scaleFactor );

				state.hemi[ hemiLength ] = uniforms;

				hemiLength ++;

			}

		}

		if ( rectAreaLength > 0 ) {

			if ( capabilities.isWebGL2 ) {

				// WebGL 2

				state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
				state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;

			} else {

				// WebGL 1

				if ( extensions.has( 'OES_texture_float_linear' ) === true ) {

					state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
					state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;

				} else if ( extensions.has( 'OES_texture_half_float_linear' ) === true ) {

					state.rectAreaLTC1 = UniformsLib.LTC_HALF_1;
					state.rectAreaLTC2 = UniformsLib.LTC_HALF_2;

				} else {

					console.error( 'THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.' );

				}

			}

		}

		state.ambient[ 0 ] = r;
		state.ambient[ 1 ] = g;
		state.ambient[ 2 ] = b;

		const hash = state.hash;

		if ( hash.directionalLength !== directionalLength ||
			hash.pointLength !== pointLength ||
			hash.spotLength !== spotLength ||
			hash.rectAreaLength !== rectAreaLength ||
			hash.hemiLength !== hemiLength ||
			hash.numDirectionalShadows !== numDirectionalShadows ||
			hash.numPointShadows !== numPointShadows ||
			hash.numSpotShadows !== numSpotShadows ) {

			state.directional.length = directionalLength;
			state.spot.length = spotLength;
			state.rectArea.length = rectAreaLength;
			state.point.length = pointLength;
			state.hemi.length = hemiLength;

			state.directionalShadow.length = numDirectionalShadows;
			state.directionalShadowMap.length = numDirectionalShadows;
			state.pointShadow.length = numPointShadows;
			state.pointShadowMap.length = numPointShadows;
			state.spotShadow.length = numSpotShadows;
			state.spotShadowMap.length = numSpotShadows;
			state.directionalShadowMatrix.length = numDirectionalShadows;
			state.pointShadowMatrix.length = numPointShadows;
			state.spotShadowMatrix.length = numSpotShadows;

			hash.directionalLength = directionalLength;
			hash.pointLength = pointLength;
			hash.spotLength = spotLength;
			hash.rectAreaLength = rectAreaLength;
			hash.hemiLength = hemiLength;

			hash.numDirectionalShadows = numDirectionalShadows;
			hash.numPointShadows = numPointShadows;
			hash.numSpotShadows = numSpotShadows;

			state.version = nextVersion ++;

		}

	}

	function setupView( lights, camera ) {

		let directionalLength = 0;
		let pointLength = 0;
		let spotLength = 0;
		let rectAreaLength = 0;
		let hemiLength = 0;

		const viewMatrix = camera.matrixWorldInverse;

		for ( let i = 0, l = lights.length; i < l; i ++ ) {

			const light = lights[ i ];

			if ( light.isDirectionalLight ) {

				const uniforms = state.directional[ directionalLength ];

				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
				vector3.setFromMatrixPosition( light.target.matrixWorld );
				uniforms.direction.sub( vector3 );
				uniforms.direction.transformDirection( viewMatrix );

				directionalLength ++;

			} else if ( light.isSpotLight ) {

				const uniforms = state.spot[ spotLength ];

				uniforms.position.setFromMatrixPosition( light.matrixWorld );
				uniforms.position.applyMatrix4( viewMatrix );

				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
				vector3.setFromMatrixPosition( light.target.matrixWorld );
				uniforms.direction.sub( vector3 );
				uniforms.direction.transformDirection( viewMatrix );

				spotLength ++;

			} else if ( light.isRectAreaLight ) {

				const uniforms = state.rectArea[ rectAreaLength ];

				uniforms.position.setFromMatrixPosition( light.matrixWorld );
				uniforms.position.applyMatrix4( viewMatrix );

				// extract local rotation of light to derive width/height half vectors
				matrix42.identity();
				matrix4.copy( light.matrixWorld );
				matrix4.premultiply( viewMatrix );
				matrix42.extractRotation( matrix4 );

				uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );
				uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );

				uniforms.halfWidth.applyMatrix4( matrix42 );
				uniforms.halfHeight.applyMatrix4( matrix42 );

				rectAreaLength ++;

			} else if ( light.isPointLight ) {

				const uniforms = state.point[ pointLength ];

				uniforms.position.setFromMatrixPosition( light.matrixWorld );
				uniforms.position.applyMatrix4( viewMatrix );

				pointLength ++;

			} else if ( light.isHemisphereLight ) {

				const uniforms = state.hemi[ hemiLength ];

				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
				uniforms.direction.transformDirection( viewMatrix );
				uniforms.direction.normalize();

				hemiLength ++;

			}

		}

	}

	return {
		setup: setup,
		setupView: setupView,
		state: state
	};

}

function WebGLRenderState( extensions, capabilities ) {

	const lights = new WebGLLights( extensions, capabilities );

	const lightsArray = [];
	const shadowsArray = [];

	function init() {

		lightsArray.length = 0;
		shadowsArray.length = 0;

	}

	function pushLight( light ) {

		lightsArray.push( light );

	}

	function pushShadow( shadowLight ) {

		shadowsArray.push( shadowLight );

	}

	function setupLights( physicallyCorrectLights ) {

		lights.setup( lightsArray, physicallyCorrectLights );

	}

	function setupLightsView( camera ) {

		lights.setupView( lightsArray, camera );

	}

	const state = {
		lightsArray: lightsArray,
		shadowsArray: shadowsArray,

		lights: lights
	};

	return {
		init: init,
		state: state,
		setupLights: setupLights,
		setupLightsView: setupLightsView,

		pushLight: pushLight,
		pushShadow: pushShadow
	};

}

function WebGLRenderStates( extensions, capabilities ) {

	let renderStates = new WeakMap();

	function get( scene, renderCallDepth = 0 ) {

		let renderState;

		if ( renderStates.has( scene ) === false ) {

			renderState = new WebGLRenderState( extensions, capabilities );
			renderStates.set( scene, [ renderState ] );

		} else {

			if ( renderCallDepth >= renderStates.get( scene ).length ) {

				renderState = new WebGLRenderState( extensions, capabilities );
				renderStates.get( scene ).push( renderState );

			} else {

				renderState = renderStates.get( scene )[ renderCallDepth ];

			}

		}

		return renderState;

	}

	function dispose() {

		renderStates = new WeakMap();

	}

	return {
		get: get,
		dispose: dispose
	};

}

/**
 * parameters = {
 *
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>
 * }
 */

class MeshDepthMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'MeshDepthMaterial';

		this.depthPacking = BasicDepthPacking;

		this.map = null;

		this.alphaMap = null;

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.wireframe = false;
		this.wireframeLinewidth = 1;

		this.fog = false;

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.depthPacking = source.depthPacking;

		this.map = source.map;

		this.alphaMap = source.alphaMap;

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;

		return this;

	}

}

MeshDepthMaterial.prototype.isMeshDepthMaterial = true;

/**
 * parameters = {
 *
 *  referencePosition: <float>,
 *  nearDistance: <float>,
 *  farDistance: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>
 *
 * }
 */

class MeshDistanceMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'MeshDistanceMaterial';

		this.referencePosition = new Vector3();
		this.nearDistance = 1;
		this.farDistance = 1000;

		this.map = null;

		this.alphaMap = null;

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.fog = false;

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.referencePosition.copy( source.referencePosition );
		this.nearDistance = source.nearDistance;
		this.farDistance = source.farDistance;

		this.map = source.map;

		this.alphaMap = source.alphaMap;

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		return this;

	}

}

MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;

const vertex = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";

const fragment = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tconst float samples = float( VSM_SAMPLES );\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n\tfloat uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n\tfor ( float i = 0.0; i < samples; i ++ ) {\n\t\tfloat uvOffset = uvStart + i * uvStride;\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean / samples;\n\tsquared_mean = squared_mean / samples;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";

function WebGLShadowMap( _renderer, _objects, _capabilities ) {

	let _frustum = new Frustum();

	const _shadowMapSize = new Vector2(),
		_viewportSize = new Vector2(),

		_viewport = new Vector4(),

		_depthMaterial = new MeshDepthMaterial( { depthPacking: RGBADepthPacking } ),
		_distanceMaterial = new MeshDistanceMaterial(),

		_materialCache = {},

		_maxTextureSize = _capabilities.maxTextureSize;

	const shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide };

	const shadowMaterialVertical = new ShaderMaterial( {
		defines: {
			VSM_SAMPLES: 8
		},
		uniforms: {
			shadow_pass: { value: null },
			resolution: { value: new Vector2() },
			radius: { value: 4.0 }
		},

		vertexShader: vertex,
		fragmentShader: fragment

	} );

	const shadowMaterialHorizontal = shadowMaterialVertical.clone();
	shadowMaterialHorizontal.defines.HORIZONTAL_PASS = 1;

	const fullScreenTri = new BufferGeometry();
	fullScreenTri.setAttribute(
		'position',
		new BufferAttribute(
			new Float32Array( [ - 1, - 1, 0.5, 3, - 1, 0.5, - 1, 3, 0.5 ] ),
			3
		)
	);

	const fullScreenMesh = new Mesh( fullScreenTri, shadowMaterialVertical );

	const scope = this;

	this.enabled = false;

	this.autoUpdate = true;
	this.needsUpdate = false;

	this.type = PCFShadowMap;

	this.render = function ( lights, scene, camera ) {

		if ( scope.enabled === false ) return;
		if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;

		if ( lights.length === 0 ) return;

		const currentRenderTarget = _renderer.getRenderTarget();
		const activeCubeFace = _renderer.getActiveCubeFace();
		const activeMipmapLevel = _renderer.getActiveMipmapLevel();

		const _state = _renderer.state;

		// Set GL state for depth map.
		_state.setBlending( NoBlending );
		_state.buffers.color.setClear( 1, 1, 1, 1 );
		_state.buffers.depth.setTest( true );
		_state.setScissorTest( false );

		// render depth map

		for ( let i = 0, il = lights.length; i < il; i ++ ) {

			const light = lights[ i ];
			const shadow = light.shadow;

			if ( shadow === undefined ) {

				console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );
				continue;

			}

			if ( shadow.autoUpdate === false && shadow.needsUpdate === false ) continue;

			_shadowMapSize.copy( shadow.mapSize );

			const shadowFrameExtents = shadow.getFrameExtents();

			_shadowMapSize.multiply( shadowFrameExtents );

			_viewportSize.copy( shadow.mapSize );

			if ( _shadowMapSize.x > _maxTextureSize || _shadowMapSize.y > _maxTextureSize ) {

				if ( _shadowMapSize.x > _maxTextureSize ) {

					_viewportSize.x = Math.floor( _maxTextureSize / shadowFrameExtents.x );
					_shadowMapSize.x = _viewportSize.x * shadowFrameExtents.x;
					shadow.mapSize.x = _viewportSize.x;

				}

				if ( _shadowMapSize.y > _maxTextureSize ) {

					_viewportSize.y = Math.floor( _maxTextureSize / shadowFrameExtents.y );
					_shadowMapSize.y = _viewportSize.y * shadowFrameExtents.y;
					shadow.mapSize.y = _viewportSize.y;

				}

			}

			if ( shadow.map === null && ! shadow.isPointLightShadow && this.type === VSMShadowMap ) {

				const pars = { minFilter: LinearFilter, magFilter: LinearFilter, format: RGBAFormat };

				shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );
				shadow.map.texture.name = light.name + '.shadowMap';

				shadow.mapPass = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );

				shadow.camera.updateProjectionMatrix();

			}

			if ( shadow.map === null ) {

				const pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };

				shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );
				shadow.map.texture.name = light.name + '.shadowMap';

				shadow.camera.updateProjectionMatrix();

			}

			_renderer.setRenderTarget( shadow.map );
			_renderer.clear();

			const viewportCount = shadow.getViewportCount();

			for ( let vp = 0; vp < viewportCount; vp ++ ) {

				const viewport = shadow.getViewport( vp );

				_viewport.set(
					_viewportSize.x * viewport.x,
					_viewportSize.y * viewport.y,
					_viewportSize.x * viewport.z,
					_viewportSize.y * viewport.w
				);

				_state.viewport( _viewport );

				shadow.updateMatrices( light, vp );

				_frustum = shadow.getFrustum();

				renderObject( scene, camera, shadow.camera, light, this.type );

			}

			// do blur pass for VSM

			if ( ! shadow.isPointLightShadow && this.type === VSMShadowMap ) {

				VSMPass( shadow, camera );

			}

			shadow.needsUpdate = false;

		}

		scope.needsUpdate = false;

		_renderer.setRenderTarget( currentRenderTarget, activeCubeFace, activeMipmapLevel );

	};

	function VSMPass( shadow, camera ) {

		const geometry = _objects.update( fullScreenMesh );

		if ( shadowMaterialVertical.defines.VSM_SAMPLES !== shadow.blurSamples ) {

			shadowMaterialVertical.defines.VSM_SAMPLES = shadow.blurSamples;
			shadowMaterialHorizontal.defines.VSM_SAMPLES = shadow.blurSamples;

			shadowMaterialVertical.needsUpdate = true;
			shadowMaterialHorizontal.needsUpdate = true;

		}

		// vertical pass

		shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture;
		shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize;
		shadowMaterialVertical.uniforms.radius.value = shadow.radius;
		_renderer.setRenderTarget( shadow.mapPass );
		_renderer.clear();
		_renderer.renderBufferDirect( camera, null, geometry, shadowMaterialVertical, fullScreenMesh, null );

		// horizontal pass

		shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture;
		shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize;
		shadowMaterialHorizontal.uniforms.radius.value = shadow.radius;
		_renderer.setRenderTarget( shadow.map );
		_renderer.clear();
		_renderer.renderBufferDirect( camera, null, geometry, shadowMaterialHorizontal, fullScreenMesh, null );

	}

	function getDepthMaterial( object, geometry, material, light, shadowCameraNear, shadowCameraFar, type ) {

		let result = null;

		const customMaterial = ( light.isPointLight === true ) ? object.customDistanceMaterial : object.customDepthMaterial;

		if ( customMaterial !== undefined ) {

			result = customMaterial;

		} else {

			result = ( light.isPointLight === true ) ? _distanceMaterial : _depthMaterial;

		}

		if ( ( _renderer.localClippingEnabled && material.clipShadows === true && material.clippingPlanes.length !== 0 ) ||
			( material.displacementMap && material.displacementScale !== 0 ) ||
			( material.alphaMap && material.alphaTest > 0 ) ) {

			// in this case we need a unique material instance reflecting the
			// appropriate state

			const keyA = result.uuid, keyB = material.uuid;

			let materialsForVariant = _materialCache[ keyA ];

			if ( materialsForVariant === undefined ) {

				materialsForVariant = {};
				_materialCache[ keyA ] = materialsForVariant;

			}

			let cachedMaterial = materialsForVariant[ keyB ];

			if ( cachedMaterial === undefined ) {

				cachedMaterial = result.clone();
				materialsForVariant[ keyB ] = cachedMaterial;

			}

			result = cachedMaterial;

		}

		result.visible = material.visible;
		result.wireframe = material.wireframe;

		if ( type === VSMShadowMap ) {

			result.side = ( material.shadowSide !== null ) ? material.shadowSide : material.side;

		} else {

			result.side = ( material.shadowSide !== null ) ? material.shadowSide : shadowSide[ material.side ];

		}

		result.alphaMap = material.alphaMap;
		result.alphaTest = material.alphaTest;

		result.clipShadows = material.clipShadows;
		result.clippingPlanes = material.clippingPlanes;
		result.clipIntersection = material.clipIntersection;

		result.displacementMap = material.displacementMap;
		result.displacementScale = material.displacementScale;
		result.displacementBias = material.displacementBias;

		result.wireframeLinewidth = material.wireframeLinewidth;
		result.linewidth = material.linewidth;

		if ( light.isPointLight === true && result.isMeshDistanceMaterial === true ) {

			result.referencePosition.setFromMatrixPosition( light.matrixWorld );
			result.nearDistance = shadowCameraNear;
			result.farDistance = shadowCameraFar;

		}

		return result;

	}

	function renderObject( object, camera, shadowCamera, light, type ) {

		if ( object.visible === false ) return;

		const visible = object.layers.test( camera.layers );

		if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {

			if ( ( object.castShadow || ( object.receiveShadow && type === VSMShadowMap ) ) && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {

				object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );

				const geometry = _objects.update( object );
				const material = object.material;

				if ( Array.isArray( material ) ) {

					const groups = geometry.groups;

					for ( let k = 0, kl = groups.length; k < kl; k ++ ) {

						const group = groups[ k ];
						const groupMaterial = material[ group.materialIndex ];

						if ( groupMaterial && groupMaterial.visible ) {

							const depthMaterial = getDepthMaterial( object, geometry, groupMaterial, light, shadowCamera.near, shadowCamera.far, type );

							_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );

						}

					}

				} else if ( material.visible ) {

					const depthMaterial = getDepthMaterial( object, geometry, material, light, shadowCamera.near, shadowCamera.far, type );

					_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );

				}

			}

		}

		const children = object.children;

		for ( let i = 0, l = children.length; i < l; i ++ ) {

			renderObject( children[ i ], camera, shadowCamera, light, type );

		}

	}

}

function WebGLState( gl, extensions, capabilities ) {

	const isWebGL2 = capabilities.isWebGL2;

	function ColorBuffer() {

		let locked = false;

		const color = new Vector4();
		let currentColorMask = null;
		const currentColorClear = new Vector4( 0, 0, 0, 0 );

		return {

			setMask: function ( colorMask ) {

				if ( currentColorMask !== colorMask && ! locked ) {

					gl.colorMask( colorMask, colorMask, colorMask, colorMask );
					currentColorMask = colorMask;

				}

			},

			setLocked: function ( lock ) {

				locked = lock;

			},

			setClear: function ( r, g, b, a, premultipliedAlpha ) {

				if ( premultipliedAlpha === true ) {

					r *= a; g *= a; b *= a;

				}

				color.set( r, g, b, a );

				if ( currentColorClear.equals( color ) === false ) {

					gl.clearColor( r, g, b, a );
					currentColorClear.copy( color );

				}

			},

			reset: function () {

				locked = false;

				currentColorMask = null;
				currentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state

			}

		};

	}

	function DepthBuffer() {

		let locked = false;

		let currentDepthMask = null;
		let currentDepthFunc = null;
		let currentDepthClear = null;

		return {

			setTest: function ( depthTest ) {

				if ( depthTest ) {

					enable( 2929 );

				} else {

					disable( 2929 );

				}

			},

			setMask: function ( depthMask ) {

				if ( currentDepthMask !== depthMask && ! locked ) {

					gl.depthMask( depthMask );
					currentDepthMask = depthMask;

				}

			},

			setFunc: function ( depthFunc ) {

				if ( currentDepthFunc !== depthFunc ) {

					if ( depthFunc ) {

						switch ( depthFunc ) {

							case NeverDepth:

								gl.depthFunc( 512 );
								break;

							case AlwaysDepth:

								gl.depthFunc( 519 );
								break;

							case LessDepth:

								gl.depthFunc( 513 );
								break;

							case LessEqualDepth:

								gl.depthFunc( 515 );
								break;

							case EqualDepth:

								gl.depthFunc( 514 );
								break;

							case GreaterEqualDepth:

								gl.depthFunc( 518 );
								break;

							case GreaterDepth:

								gl.depthFunc( 516 );
								break;

							case NotEqualDepth:

								gl.depthFunc( 517 );
								break;

							default:

								gl.depthFunc( 515 );

						}

					} else {

						gl.depthFunc( 515 );

					}

					currentDepthFunc = depthFunc;

				}

			},

			setLocked: function ( lock ) {

				locked = lock;

			},

			setClear: function ( depth ) {

				if ( currentDepthClear !== depth ) {

					gl.clearDepth( depth );
					currentDepthClear = depth;

				}

			},

			reset: function () {

				locked = false;

				currentDepthMask = null;
				currentDepthFunc = null;
				currentDepthClear = null;

			}

		};

	}

	function StencilBuffer() {

		let locked = false;

		let currentStencilMask = null;
		let currentStencilFunc = null;
		let currentStencilRef = null;
		let currentStencilFuncMask = null;
		let currentStencilFail = null;
		let currentStencilZFail = null;
		let currentStencilZPass = null;
		let currentStencilClear = null;

		return {

			setTest: function ( stencilTest ) {

				if ( ! locked ) {

					if ( stencilTest ) {

						enable( 2960 );

					} else {

						disable( 2960 );

					}

				}

			},

			setMask: function ( stencilMask ) {

				if ( currentStencilMask !== stencilMask && ! locked ) {

					gl.stencilMask( stencilMask );
					currentStencilMask = stencilMask;

				}

			},

			setFunc: function ( stencilFunc, stencilRef, stencilMask ) {

				if ( currentStencilFunc !== stencilFunc ||
				     currentStencilRef !== stencilRef ||
				     currentStencilFuncMask !== stencilMask ) {

					gl.stencilFunc( stencilFunc, stencilRef, stencilMask );

					currentStencilFunc = stencilFunc;
					currentStencilRef = stencilRef;
					currentStencilFuncMask = stencilMask;

				}

			},

			setOp: function ( stencilFail, stencilZFail, stencilZPass ) {

				if ( currentStencilFail !== stencilFail ||
				     currentStencilZFail !== stencilZFail ||
				     currentStencilZPass !== stencilZPass ) {

					gl.stencilOp( stencilFail, stencilZFail, stencilZPass );

					currentStencilFail = stencilFail;
					currentStencilZFail = stencilZFail;
					currentStencilZPass = stencilZPass;

				}

			},

			setLocked: function ( lock ) {

				locked = lock;

			},

			setClear: function ( stencil ) {

				if ( currentStencilClear !== stencil ) {

					gl.clearStencil( stencil );
					currentStencilClear = stencil;

				}

			},

			reset: function () {

				locked = false;

				currentStencilMask = null;
				currentStencilFunc = null;
				currentStencilRef = null;
				currentStencilFuncMask = null;
				currentStencilFail = null;
				currentStencilZFail = null;
				currentStencilZPass = null;
				currentStencilClear = null;

			}

		};

	}

	//

	const colorBuffer = new ColorBuffer();
	const depthBuffer = new DepthBuffer();
	const stencilBuffer = new StencilBuffer();

	let enabledCapabilities = {};

	let currentBoundFramebuffers = {};
	let currentDrawbuffers = new WeakMap();
	let defaultDrawbuffers = [];

	let currentProgram = null;

	let currentBlendingEnabled = false;
	let currentBlending = null;
	let currentBlendEquation = null;
	let currentBlendSrc = null;
	let currentBlendDst = null;
	let currentBlendEquationAlpha = null;
	let currentBlendSrcAlpha = null;
	let currentBlendDstAlpha = null;
	let currentPremultipledAlpha = false;

	let currentFlipSided = null;
	let currentCullFace = null;

	let currentLineWidth = null;

	let currentPolygonOffsetFactor = null;
	let currentPolygonOffsetUnits = null;

	const maxTextures = gl.getParameter( 35661 );

	let lineWidthAvailable = false;
	let version = 0;
	const glVersion = gl.getParameter( 7938 );

	if ( glVersion.indexOf( 'WebGL' ) !== - 1 ) {

		version = parseFloat( /^WebGL (\d)/.exec( glVersion )[ 1 ] );
		lineWidthAvailable = ( version >= 1.0 );

	} else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) {

		version = parseFloat( /^OpenGL ES (\d)/.exec( glVersion )[ 1 ] );
		lineWidthAvailable = ( version >= 2.0 );

	}

	let currentTextureSlot = null;
	let currentBoundTextures = {};

	const scissorParam = gl.getParameter( 3088 );
	const viewportParam = gl.getParameter( 2978 );

	const currentScissor = new Vector4().fromArray( scissorParam );
	const currentViewport = new Vector4().fromArray( viewportParam );

	function createTexture( type, target, count ) {

		const data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.
		const texture = gl.createTexture();

		gl.bindTexture( type, texture );
		gl.texParameteri( type, 10241, 9728 );
		gl.texParameteri( type, 10240, 9728 );

		for ( let i = 0; i < count; i ++ ) {

			gl.texImage2D( target + i, 0, 6408, 1, 1, 0, 6408, 5121, data );

		}

		return texture;

	}

	const emptyTextures = {};
	emptyTextures[ 3553 ] = createTexture( 3553, 3553, 1 );
	emptyTextures[ 34067 ] = createTexture( 34067, 34069, 6 );

	// init

	colorBuffer.setClear( 0, 0, 0, 1 );
	depthBuffer.setClear( 1 );
	stencilBuffer.setClear( 0 );

	enable( 2929 );
	depthBuffer.setFunc( LessEqualDepth );

	setFlipSided( false );
	setCullFace( CullFaceBack );
	enable( 2884 );

	setBlending( NoBlending );

	//

	function enable( id ) {

		if ( enabledCapabilities[ id ] !== true ) {

			gl.enable( id );
			enabledCapabilities[ id ] = true;

		}

	}

	function disable( id ) {

		if ( enabledCapabilities[ id ] !== false ) {

			gl.disable( id );
			enabledCapabilities[ id ] = false;

		}

	}

	function bindFramebuffer( target, framebuffer ) {

		if ( currentBoundFramebuffers[ target ] !== framebuffer ) {

			gl.bindFramebuffer( target, framebuffer );

			currentBoundFramebuffers[ target ] = framebuffer;

			if ( isWebGL2 ) {

				// 36009 is equivalent to 36160

				if ( target === 36009 ) {

					currentBoundFramebuffers[ 36160 ] = framebuffer;

				}

				if ( target === 36160 ) {

					currentBoundFramebuffers[ 36009 ] = framebuffer;

				}

			}

			return true;

		}

		return false;

	}

	function drawBuffers( renderTarget, framebuffer ) {

		let drawBuffers = defaultDrawbuffers;

		let needsUpdate = false;

		if ( renderTarget ) {

			drawBuffers = currentDrawbuffers.get( framebuffer );

			if ( drawBuffers === undefined ) {

				drawBuffers = [];
				currentDrawbuffers.set( framebuffer, drawBuffers );

			}

			if ( renderTarget.isWebGLMultipleRenderTargets ) {

				const textures = renderTarget.texture;

				if ( drawBuffers.length !== textures.length || drawBuffers[ 0 ] !== 36064 ) {

					for ( let i = 0, il = textures.length; i < il; i ++ ) {

						drawBuffers[ i ] = 36064 + i;

					}

					drawBuffers.length = textures.length;

					needsUpdate = true;

				}

			} else {

				if ( drawBuffers[ 0 ] !== 36064 ) {

					drawBuffers[ 0 ] = 36064;

					needsUpdate = true;

				}

			}

		} else {

			if ( drawBuffers[ 0 ] !== 1029 ) {

				drawBuffers[ 0 ] = 1029;

				needsUpdate = true;

			}

		}

		if ( needsUpdate ) {

			if ( capabilities.isWebGL2 ) {

				gl.drawBuffers( drawBuffers );

			} else {

				extensions.get( 'WEBGL_draw_buffers' ).drawBuffersWEBGL( drawBuffers );

			}

		}


	}

	function useProgram( program ) {

		if ( currentProgram !== program ) {

			gl.useProgram( program );

			currentProgram = program;

			return true;

		}

		return false;

	}

	const equationToGL = {
		[ AddEquation ]: 32774,
		[ SubtractEquation ]: 32778,
		[ ReverseSubtractEquation ]: 32779
	};

	if ( isWebGL2 ) {

		equationToGL[ MinEquation ] = 32775;
		equationToGL[ MaxEquation ] = 32776;

	} else {

		const extension = extensions.get( 'EXT_blend_minmax' );

		if ( extension !== null ) {

			equationToGL[ MinEquation ] = extension.MIN_EXT;
			equationToGL[ MaxEquation ] = extension.MAX_EXT;

		}

	}

	const factorToGL = {
		[ ZeroFactor ]: 0,
		[ OneFactor ]: 1,
		[ SrcColorFactor ]: 768,
		[ SrcAlphaFactor ]: 770,
		[ SrcAlphaSaturateFactor ]: 776,
		[ DstColorFactor ]: 774,
		[ DstAlphaFactor ]: 772,
		[ OneMinusSrcColorFactor ]: 769,
		[ OneMinusSrcAlphaFactor ]: 771,
		[ OneMinusDstColorFactor ]: 775,
		[ OneMinusDstAlphaFactor ]: 773
	};

	function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {

		if ( blending === NoBlending ) {

			if ( currentBlendingEnabled === true ) {

				disable( 3042 );
				currentBlendingEnabled = false;

			}

			return;

		}

		if ( currentBlendingEnabled === false ) {

			enable( 3042 );
			currentBlendingEnabled = true;

		}

		if ( blending !== CustomBlending ) {

			if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {

				if ( currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation ) {

					gl.blendEquation( 32774 );

					currentBlendEquation = AddEquation;
					currentBlendEquationAlpha = AddEquation;

				}

				if ( premultipliedAlpha ) {

					switch ( blending ) {

						case NormalBlending:
							gl.blendFuncSeparate( 1, 771, 1, 771 );
							break;

						case AdditiveBlending:
							gl.blendFunc( 1, 1 );
							break;

						case SubtractiveBlending:
							gl.blendFuncSeparate( 0, 769, 0, 1 );
							break;

						case MultiplyBlending:
							gl.blendFuncSeparate( 0, 768, 0, 770 );
							break;

						default:
							console.error( 'THREE.WebGLState: Invalid blending: ', blending );
							break;

					}

				} else {

					switch ( blending ) {

						case NormalBlending:
							gl.blendFuncSeparate( 770, 771, 1, 771 );
							break;

						case AdditiveBlending:
							gl.blendFunc( 770, 1 );
							break;

						case SubtractiveBlending:
							gl.blendFuncSeparate( 0, 769, 0, 1 );
							break;

						case MultiplyBlending:
							gl.blendFunc( 0, 768 );
							break;

						default:
							console.error( 'THREE.WebGLState: Invalid blending: ', blending );
							break;

					}

				}

				currentBlendSrc = null;
				currentBlendDst = null;
				currentBlendSrcAlpha = null;
				currentBlendDstAlpha = null;

				currentBlending = blending;
				currentPremultipledAlpha = premultipliedAlpha;

			}

			return;

		}

		// custom blending

		blendEquationAlpha = blendEquationAlpha || blendEquation;
		blendSrcAlpha = blendSrcAlpha || blendSrc;
		blendDstAlpha = blendDstAlpha || blendDst;

		if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {

			gl.blendEquationSeparate( equationToGL[ blendEquation ], equationToGL[ blendEquationAlpha ] );

			currentBlendEquation = blendEquation;
			currentBlendEquationAlpha = blendEquationAlpha;

		}

		if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {

			gl.blendFuncSeparate( factorToGL[ blendSrc ], factorToGL[ blendDst ], factorToGL[ blendSrcAlpha ], factorToGL[ blendDstAlpha ] );

			currentBlendSrc = blendSrc;
			currentBlendDst = blendDst;
			currentBlendSrcAlpha = blendSrcAlpha;
			currentBlendDstAlpha = blendDstAlpha;

		}

		currentBlending = blending;
		currentPremultipledAlpha = null;

	}

	function setMaterial( material, frontFaceCW ) {

		material.side === DoubleSide
			? disable( 2884 )
			: enable( 2884 );

		let flipSided = ( material.side === BackSide );
		if ( frontFaceCW ) flipSided = ! flipSided;

		setFlipSided( flipSided );

		( material.blending === NormalBlending && material.transparent === false )
			? setBlending( NoBlending )
			: setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );

		depthBuffer.setFunc( material.depthFunc );
		depthBuffer.setTest( material.depthTest );
		depthBuffer.setMask( material.depthWrite );
		colorBuffer.setMask( material.colorWrite );

		const stencilWrite = material.stencilWrite;
		stencilBuffer.setTest( stencilWrite );
		if ( stencilWrite ) {

			stencilBuffer.setMask( material.stencilWriteMask );
			stencilBuffer.setFunc( material.stencilFunc, material.stencilRef, material.stencilFuncMask );
			stencilBuffer.setOp( material.stencilFail, material.stencilZFail, material.stencilZPass );

		}

		setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );

		material.alphaToCoverage === true
			? enable( 32926 )
			: disable( 32926 );

	}

	//

	function setFlipSided( flipSided ) {

		if ( currentFlipSided !== flipSided ) {

			if ( flipSided ) {

				gl.frontFace( 2304 );

			} else {

				gl.frontFace( 2305 );

			}

			currentFlipSided = flipSided;

		}

	}

	function setCullFace( cullFace ) {

		if ( cullFace !== CullFaceNone ) {

			enable( 2884 );

			if ( cullFace !== currentCullFace ) {

				if ( cullFace === CullFaceBack ) {

					gl.cullFace( 1029 );

				} else if ( cullFace === CullFaceFront ) {

					gl.cullFace( 1028 );

				} else {

					gl.cullFace( 1032 );

				}

			}

		} else {

			disable( 2884 );

		}

		currentCullFace = cullFace;

	}

	function setLineWidth( width ) {

		if ( width !== currentLineWidth ) {

			if ( lineWidthAvailable ) gl.lineWidth( width );

			currentLineWidth = width;

		}

	}

	function setPolygonOffset( polygonOffset, factor, units ) {

		if ( polygonOffset ) {

			enable( 32823 );

			if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {

				gl.polygonOffset( factor, units );

				currentPolygonOffsetFactor = factor;
				currentPolygonOffsetUnits = units;

			}

		} else {

			disable( 32823 );

		}

	}

	function setScissorTest( scissorTest ) {

		if ( scissorTest ) {

			enable( 3089 );

		} else {

			disable( 3089 );

		}

	}

	// texture

	function activeTexture( webglSlot ) {

		if ( webglSlot === undefined ) webglSlot = 33984 + maxTextures - 1;

		if ( currentTextureSlot !== webglSlot ) {

			gl.activeTexture( webglSlot );
			currentTextureSlot = webglSlot;

		}

	}

	function bindTexture( webglType, webglTexture ) {

		if ( currentTextureSlot === null ) {

			activeTexture();

		}

		let boundTexture = currentBoundTextures[ currentTextureSlot ];

		if ( boundTexture === undefined ) {

			boundTexture = { type: undefined, texture: undefined };
			currentBoundTextures[ currentTextureSlot ] = boundTexture;

		}

		if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {

			gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );

			boundTexture.type = webglType;
			boundTexture.texture = webglTexture;

		}

	}

	function unbindTexture() {

		const boundTexture = currentBoundTextures[ currentTextureSlot ];

		if ( boundTexture !== undefined && boundTexture.type !== undefined ) {

			gl.bindTexture( boundTexture.type, null );

			boundTexture.type = undefined;
			boundTexture.texture = undefined;

		}

	}

	function compressedTexImage2D() {

		try {

			gl.compressedTexImage2D.apply( gl, arguments );

		} catch ( error ) {

			console.error( 'THREE.WebGLState:', error );

		}

	}

	function texSubImage2D() {

		try {

			gl.texSubImage2D.apply( gl, arguments );

		} catch ( error ) {

			console.error( 'THREE.WebGLState:', error );

		}

	}

	function texSubImage3D() {

		try {

			gl.texSubImage3D.apply( gl, arguments );

		} catch ( error ) {

			console.error( 'THREE.WebGLState:', error );

		}

	}

	function compressedTexSubImage2D() {

		try {

			gl.compressedTexSubImage2D.apply( gl, arguments );

		} catch ( error ) {

			console.error( 'THREE.WebGLState:', error );

		}

	}

	function texStorage2D() {

		try {

			gl.texStorage2D.apply( gl, arguments );

		} catch ( error ) {

			console.error( 'THREE.WebGLState:', error );

		}

	}

	function texStorage3D() {

		try {

			gl.texStorage3D.apply( gl, arguments );

		} catch ( error ) {

			console.error( 'THREE.WebGLState:', error );

		}

	}

	function texImage2D() {

		try {

			gl.texImage2D.apply( gl, arguments );

		} catch ( error ) {

			console.error( 'THREE.WebGLState:', error );

		}

	}

	function texImage3D() {

		try {

			gl.texImage3D.apply( gl, arguments );

		} catch ( error ) {

			console.error( 'THREE.WebGLState:', error );

		}

	}

	//

	function scissor( scissor ) {

		if ( currentScissor.equals( scissor ) === false ) {

			gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );
			currentScissor.copy( scissor );

		}

	}

	function viewport( viewport ) {

		if ( currentViewport.equals( viewport ) === false ) {

			gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );
			currentViewport.copy( viewport );

		}

	}

	//

	function reset() {

		// reset state

		gl.disable( 3042 );
		gl.disable( 2884 );
		gl.disable( 2929 );
		gl.disable( 32823 );
		gl.disable( 3089 );
		gl.disable( 2960 );
		gl.disable( 32926 );

		gl.blendEquation( 32774 );
		gl.blendFunc( 1, 0 );
		gl.blendFuncSeparate( 1, 0, 1, 0 );

		gl.colorMask( true, true, true, true );
		gl.clearColor( 0, 0, 0, 0 );

		gl.depthMask( true );
		gl.depthFunc( 513 );
		gl.clearDepth( 1 );

		gl.stencilMask( 0xffffffff );
		gl.stencilFunc( 519, 0, 0xffffffff );
		gl.stencilOp( 7680, 7680, 7680 );
		gl.clearStencil( 0 );

		gl.cullFace( 1029 );
		gl.frontFace( 2305 );

		gl.polygonOffset( 0, 0 );

		gl.activeTexture( 33984 );

		gl.bindFramebuffer( 36160, null );

		if ( isWebGL2 === true ) {

			gl.bindFramebuffer( 36009, null );
			gl.bindFramebuffer( 36008, null );

		}

		gl.useProgram( null );

		gl.lineWidth( 1 );

		gl.scissor( 0, 0, gl.canvas.width, gl.canvas.height );
		gl.viewport( 0, 0, gl.canvas.width, gl.canvas.height );

		// reset internals

		enabledCapabilities = {};

		currentTextureSlot = null;
		currentBoundTextures = {};

		currentBoundFramebuffers = {};
		currentDrawbuffers = new WeakMap();
		defaultDrawbuffers = [];

		currentProgram = null;

		currentBlendingEnabled = false;
		currentBlending = null;
		currentBlendEquation = null;
		currentBlendSrc = null;
		currentBlendDst = null;
		currentBlendEquationAlpha = null;
		currentBlendSrcAlpha = null;
		currentBlendDstAlpha = null;
		currentPremultipledAlpha = false;

		currentFlipSided = null;
		currentCullFace = null;

		currentLineWidth = null;

		currentPolygonOffsetFactor = null;
		currentPolygonOffsetUnits = null;

		currentScissor.set( 0, 0, gl.canvas.width, gl.canvas.height );
		currentViewport.set( 0, 0, gl.canvas.width, gl.canvas.height );

		colorBuffer.reset();
		depthBuffer.reset();
		stencilBuffer.reset();

	}

	return {

		buffers: {
			color: colorBuffer,
			depth: depthBuffer,
			stencil: stencilBuffer
		},

		enable: enable,
		disable: disable,

		bindFramebuffer: bindFramebuffer,
		drawBuffers: drawBuffers,

		useProgram: useProgram,

		setBlending: setBlending,
		setMaterial: setMaterial,

		setFlipSided: setFlipSided,
		setCullFace: setCullFace,

		setLineWidth: setLineWidth,
		setPolygonOffset: setPolygonOffset,

		setScissorTest: setScissorTest,

		activeTexture: activeTexture,
		bindTexture: bindTexture,
		unbindTexture: unbindTexture,
		compressedTexImage2D: compressedTexImage2D,
		texImage2D: texImage2D,
		texImage3D: texImage3D,

		texStorage2D: texStorage2D,
		texStorage3D: texStorage3D,
		texSubImage2D: texSubImage2D,
		texSubImage3D: texSubImage3D,
		compressedTexSubImage2D: compressedTexSubImage2D,

		scissor: scissor,
		viewport: viewport,

		reset: reset

	};

}

function WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ) {

	const isWebGL2 = capabilities.isWebGL2;
	const maxTextures = capabilities.maxTextures;
	const maxCubemapSize = capabilities.maxCubemapSize;
	const maxTextureSize = capabilities.maxTextureSize;
	const maxSamples = capabilities.maxSamples;
	const hasMultisampledRenderToTexture = extensions.has( 'WEBGL_multisampled_render_to_texture' );
	const MultisampledRenderToTextureExtension = hasMultisampledRenderToTexture ? extensions.get( 'WEBGL_multisampled_render_to_texture' ) : undefined;

	const _videoTextures = new WeakMap();
	let _canvas;

	// cordova iOS (as of 5.0) still uses UIWebView, which provides OffscreenCanvas,
	// also OffscreenCanvas.getContext("webgl"), but not OffscreenCanvas.getContext("2d")!
	// Some implementations may only implement OffscreenCanvas partially (e.g. lacking 2d).

	let useOffscreenCanvas = false;

	try {

		useOffscreenCanvas = typeof OffscreenCanvas !== 'undefined'
			&& ( new OffscreenCanvas( 1, 1 ).getContext( '2d' ) ) !== null;

	} catch ( err ) {

		// Ignore any errors

	}

	function createCanvas( width, height ) {

		// Use OffscreenCanvas when available. Specially needed in web workers

		return useOffscreenCanvas ?
			new OffscreenCanvas( width, height ) : createElementNS( 'canvas' );

	}

	function resizeImage( image, needsPowerOfTwo, needsNewCanvas, maxSize ) {

		let scale = 1;

		// handle case if texture exceeds max size

		if ( image.width > maxSize || image.height > maxSize ) {

			scale = maxSize / Math.max( image.width, image.height );

		}

		// only perform resize if necessary

		if ( scale < 1 || needsPowerOfTwo === true ) {

			// only perform resize for certain image types

			if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) ||
				( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) ||
				( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) {

				const floor = needsPowerOfTwo ? floorPowerOfTwo : Math.floor;

				const width = floor( scale * image.width );
				const height = floor( scale * image.height );

				if ( _canvas === undefined ) _canvas = createCanvas( width, height );

				// cube textures can't reuse the same canvas

				const canvas = needsNewCanvas ? createCanvas( width, height ) : _canvas;

				canvas.width = width;
				canvas.height = height;

				const context = canvas.getContext( '2d' );
				context.drawImage( image, 0, 0, width, height );

				console.warn( 'THREE.WebGLRenderer: Texture has been resized from (' + image.width + 'x' + image.height + ') to (' + width + 'x' + height + ').' );

				return canvas;

			} else {

				if ( 'data' in image ) {

					console.warn( 'THREE.WebGLRenderer: Image in DataTexture is too big (' + image.width + 'x' + image.height + ').' );

				}

				return image;

			}

		}

		return image;

	}

	function isPowerOfTwo$1( image ) {

		return isPowerOfTwo( image.width ) && isPowerOfTwo( image.height );

	}

	function textureNeedsPowerOfTwo( texture ) {

		if ( isWebGL2 ) return false;

		return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||
			( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );

	}

	function textureNeedsGenerateMipmaps( texture, supportsMips ) {

		return texture.generateMipmaps && supportsMips &&
			texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;

	}

	function generateMipmap( target ) {

		_gl.generateMipmap( target );

	}

	function getInternalFormat( internalFormatName, glFormat, glType, encoding, isVideoTexture = false ) {

		if ( isWebGL2 === false ) return glFormat;

		if ( internalFormatName !== null ) {

			if ( _gl[ internalFormatName ] !== undefined ) return _gl[ internalFormatName ];

			console.warn( 'THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format \'' + internalFormatName + '\'' );

		}

		let internalFormat = glFormat;

		if ( glFormat === 6403 ) {

			if ( glType === 5126 ) internalFormat = 33326;
			if ( glType === 5131 ) internalFormat = 33325;
			if ( glType === 5121 ) internalFormat = 33321;

		}

		if ( glFormat === 33319 ) {

			if ( glType === 5126 ) internalFormat = 33328;
			if ( glType === 5131 ) internalFormat = 33327;
			if ( glType === 5121 ) internalFormat = 33323;

		}

		if ( glFormat === 6408 ) {

			if ( glType === 5126 ) internalFormat = 34836;
			if ( glType === 5131 ) internalFormat = 34842;
			if ( glType === 5121 ) internalFormat = ( encoding === sRGBEncoding && isVideoTexture === false ) ? 35907 : 32856;
			if ( glType === 32819 ) internalFormat = 32854;
			if ( glType === 32820 ) internalFormat = 32855;

		}

		if ( internalFormat === 33325 || internalFormat === 33326 ||
			internalFormat === 33327 || internalFormat === 33328 ||
			internalFormat === 34842 || internalFormat === 34836 ) {

			extensions.get( 'EXT_color_buffer_float' );

		}

		return internalFormat;

	}

	function getMipLevels( texture, image, supportsMips ) {

		if ( textureNeedsGenerateMipmaps( texture, supportsMips ) === true || ( texture.isFramebufferTexture && texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) ) {

			return Math.log2( Math.max( image.width, image.height ) ) + 1;

		} else if ( texture.mipmaps !== undefined && texture.mipmaps.length > 0 ) {

			// user-defined mipmaps

			return texture.mipmaps.length;

		} else if ( texture.isCompressedTexture && Array.isArray( texture.image ) ) {

			return image.mipmaps.length;

		} else {

			// texture without mipmaps (only base level)

			return 1;

		}

	}

	// Fallback filters for non-power-of-2 textures

	function filterFallback( f ) {

		if ( f === NearestFilter || f === NearestMipmapNearestFilter || f === NearestMipmapLinearFilter ) {

			return 9728;

		}

		return 9729;

	}

	//

	function onTextureDispose( event ) {

		const texture = event.target;

		texture.removeEventListener( 'dispose', onTextureDispose );

		deallocateTexture( texture );

		if ( texture.isVideoTexture ) {

			_videoTextures.delete( texture );

		}

		info.memory.textures --;

	}

	function onRenderTargetDispose( event ) {

		const renderTarget = event.target;

		renderTarget.removeEventListener( 'dispose', onRenderTargetDispose );

		deallocateRenderTarget( renderTarget );

	}

	//

	function deallocateTexture( texture ) {

		const textureProperties = properties.get( texture );

		if ( textureProperties.__webglInit === undefined ) return;

		_gl.deleteTexture( textureProperties.__webglTexture );

		properties.remove( texture );

	}

	function deallocateRenderTarget( renderTarget ) {

		const texture = renderTarget.texture;

		const renderTargetProperties = properties.get( renderTarget );
		const textureProperties = properties.get( texture );

		if ( ! renderTarget ) return;

		if ( textureProperties.__webglTexture !== undefined ) {

			_gl.deleteTexture( textureProperties.__webglTexture );

			info.memory.textures --;

		}

		if ( renderTarget.depthTexture ) {

			renderTarget.depthTexture.dispose();

		}

		if ( renderTarget.isWebGLCubeRenderTarget ) {

			for ( let i = 0; i < 6; i ++ ) {

				_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );
				if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );

			}

		} else {

			_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );
			if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );
			if ( renderTargetProperties.__webglMultisampledFramebuffer ) _gl.deleteFramebuffer( renderTargetProperties.__webglMultisampledFramebuffer );
			if ( renderTargetProperties.__webglColorRenderbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglColorRenderbuffer );
			if ( renderTargetProperties.__webglDepthRenderbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthRenderbuffer );

		}

		if ( renderTarget.isWebGLMultipleRenderTargets ) {

			for ( let i = 0, il = texture.length; i < il; i ++ ) {

				const attachmentProperties = properties.get( texture[ i ] );

				if ( attachmentProperties.__webglTexture ) {

					_gl.deleteTexture( attachmentProperties.__webglTexture );

					info.memory.textures --;

				}

				properties.remove( texture[ i ] );

			}

		}

		properties.remove( texture );
		properties.remove( renderTarget );

	}

	//

	let textureUnits = 0;

	function resetTextureUnits() {

		textureUnits = 0;

	}

	function allocateTextureUnit() {

		const textureUnit = textureUnits;

		if ( textureUnit >= maxTextures ) {

			console.warn( 'THREE.WebGLTextures: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + maxTextures );

		}

		textureUnits += 1;

		return textureUnit;

	}

	//

	function setTexture2D( texture, slot ) {

		const textureProperties = properties.get( texture );

		if ( texture.isVideoTexture ) updateVideoTexture( texture );

		if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

			const image = texture.image;

			if ( image === undefined ) {

				console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined' );

			} else if ( image.complete === false ) {

				console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete' );

			} else {

				uploadTexture( textureProperties, texture, slot );
				return;

			}

		}

		state.activeTexture( 33984 + slot );
		state.bindTexture( 3553, textureProperties.__webglTexture );

	}

	function setTexture2DArray( texture, slot ) {

		const textureProperties = properties.get( texture );

		if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

			uploadTexture( textureProperties, texture, slot );
			return;

		}

		state.activeTexture( 33984 + slot );
		state.bindTexture( 35866, textureProperties.__webglTexture );

	}

	function setTexture3D( texture, slot ) {

		const textureProperties = properties.get( texture );

		if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

			uploadTexture( textureProperties, texture, slot );
			return;

		}

		state.activeTexture( 33984 + slot );
		state.bindTexture( 32879, textureProperties.__webglTexture );

	}

	function setTextureCube( texture, slot ) {

		const textureProperties = properties.get( texture );

		if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

			uploadCubeTexture( textureProperties, texture, slot );
			return;

		}

		state.activeTexture( 33984 + slot );
		state.bindTexture( 34067, textureProperties.__webglTexture );

	}

	const wrappingToGL = {
		[ RepeatWrapping ]: 10497,
		[ ClampToEdgeWrapping ]: 33071,
		[ MirroredRepeatWrapping ]: 33648
	};

	const filterToGL = {
		[ NearestFilter ]: 9728,
		[ NearestMipmapNearestFilter ]: 9984,
		[ NearestMipmapLinearFilter ]: 9986,

		[ LinearFilter ]: 9729,
		[ LinearMipmapNearestFilter ]: 9985,
		[ LinearMipmapLinearFilter ]: 9987
	};

	function setTextureParameters( textureType, texture, supportsMips ) {

		if ( supportsMips ) {

			_gl.texParameteri( textureType, 10242, wrappingToGL[ texture.wrapS ] );
			_gl.texParameteri( textureType, 10243, wrappingToGL[ texture.wrapT ] );

			if ( textureType === 32879 || textureType === 35866 ) {

				_gl.texParameteri( textureType, 32882, wrappingToGL[ texture.wrapR ] );

			}

			_gl.texParameteri( textureType, 10240, filterToGL[ texture.magFilter ] );
			_gl.texParameteri( textureType, 10241, filterToGL[ texture.minFilter ] );

		} else {

			_gl.texParameteri( textureType, 10242, 33071 );
			_gl.texParameteri( textureType, 10243, 33071 );

			if ( textureType === 32879 || textureType === 35866 ) {

				_gl.texParameteri( textureType, 32882, 33071 );

			}

			if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {

				console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.' );

			}

			_gl.texParameteri( textureType, 10240, filterFallback( texture.magFilter ) );
			_gl.texParameteri( textureType, 10241, filterFallback( texture.minFilter ) );

			if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {

				console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.' );

			}

		}

		if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) {

			const extension = extensions.get( 'EXT_texture_filter_anisotropic' );

			if ( texture.type === FloatType && extensions.has( 'OES_texture_float_linear' ) === false ) return; // verify extension for WebGL 1 and WebGL 2
			if ( isWebGL2 === false && ( texture.type === HalfFloatType && extensions.has( 'OES_texture_half_float_linear' ) === false ) ) return; // verify extension for WebGL 1 only

			if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {

				_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );
				properties.get( texture ).__currentAnisotropy = texture.anisotropy;

			}

		}

	}

	function initTexture( textureProperties, texture ) {

		if ( textureProperties.__webglInit === undefined ) {

			textureProperties.__webglInit = true;

			texture.addEventListener( 'dispose', onTextureDispose );

			textureProperties.__webglTexture = _gl.createTexture();

			info.memory.textures ++;

		}

	}

	function uploadTexture( textureProperties, texture, slot ) {

		let textureType = 3553;

		if ( texture.isDataTexture2DArray ) textureType = 35866;
		if ( texture.isDataTexture3D ) textureType = 32879;

		initTexture( textureProperties, texture );

		state.activeTexture( 33984 + slot );
		state.bindTexture( textureType, textureProperties.__webglTexture );

		_gl.pixelStorei( 37440, texture.flipY );
		_gl.pixelStorei( 37441, texture.premultiplyAlpha );
		_gl.pixelStorei( 3317, texture.unpackAlignment );
		_gl.pixelStorei( 37443, 0 );

		const needsPowerOfTwo = textureNeedsPowerOfTwo( texture ) && isPowerOfTwo$1( texture.image ) === false;
		let image = resizeImage( texture.image, needsPowerOfTwo, false, maxTextureSize );
		image = verifyColorSpace( texture, image );

		const supportsMips = isPowerOfTwo$1( image ) || isWebGL2,
			glFormat = utils.convert( texture.format, texture.encoding );

		let glType = utils.convert( texture.type ),
			glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding, texture.isVideoTexture );

		setTextureParameters( textureType, texture, supportsMips );

		let mipmap;
		const mipmaps = texture.mipmaps;

		const useTexStorage = ( isWebGL2 && texture.isVideoTexture !== true );
		const allocateMemory = ( textureProperties.__version === undefined );
		const levels = getMipLevels( texture, image, supportsMips );

		if ( texture.isDepthTexture ) {

			// populate depth texture with dummy data

			glInternalFormat = 6402;

			if ( isWebGL2 ) {

				if ( texture.type === FloatType ) {

					glInternalFormat = 36012;

				} else if ( texture.type === UnsignedIntType ) {

					glInternalFormat = 33190;

				} else if ( texture.type === UnsignedInt248Type ) {

					glInternalFormat = 35056;

				} else {

					glInternalFormat = 33189; // WebGL2 requires sized internalformat for glTexImage2D

				}

			} else {

				if ( texture.type === FloatType ) {

					console.error( 'WebGLRenderer: Floating point depth texture requires WebGL2.' );

				}

			}

			// validation checks for WebGL 1

			if ( texture.format === DepthFormat && glInternalFormat === 6402 ) {

				// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
				// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
				if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {

					console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );

					texture.type = UnsignedShortType;
					glType = utils.convert( texture.type );

				}

			}

			if ( texture.format === DepthStencilFormat && glInternalFormat === 6402 ) {

				// Depth stencil textures need the DEPTH_STENCIL internal format
				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
				glInternalFormat = 34041;

				// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
				// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
				if ( texture.type !== UnsignedInt248Type ) {

					console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );

					texture.type = UnsignedInt248Type;
					glType = utils.convert( texture.type );

				}

			}

			//

			if ( useTexStorage && allocateMemory ) {

				state.texStorage2D( 3553, 1, glInternalFormat, image.width, image.height );

			} else {

				state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null );

			}

		} else if ( texture.isDataTexture ) {

			// use manually created mipmaps if available
			// if there are no manual mipmaps
			// set 0 level mipmap and then use GL to generate other mipmap levels

			if ( mipmaps.length > 0 && supportsMips ) {

				if ( useTexStorage && allocateMemory ) {

					state.texStorage2D( 3553, levels, glInternalFormat, mipmaps[ 0 ].width, mipmaps[ 0 ].height );

				}

				for ( let i = 0, il = mipmaps.length; i < il; i ++ ) {

					mipmap = mipmaps[ i ];

					if ( useTexStorage ) {

						state.texSubImage2D( 3553, 0, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data );

					} else {

						state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

					}

				}

				texture.generateMipmaps = false;

			} else {

				if ( useTexStorage ) {

					if ( allocateMemory ) {

						state.texStorage2D( 3553, levels, glInternalFormat, image.width, image.height );

					}

					state.texSubImage2D( 3553, 0, 0, 0, image.width, image.height, glFormat, glType, image.data );

				} else {

					state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data );

				}

			}

		} else if ( texture.isCompressedTexture ) {

			if ( useTexStorage && allocateMemory ) {

				state.texStorage2D( 3553, levels, glInternalFormat, mipmaps[ 0 ].width, mipmaps[ 0 ].height );

			}

			for ( let i = 0, il = mipmaps.length; i < il; i ++ ) {

				mipmap = mipmaps[ i ];

				if ( texture.format !== RGBAFormat ) {

					if ( glFormat !== null ) {

						if ( useTexStorage ) {

							state.compressedTexSubImage2D( 3553, i, 0, 0, mipmap.width, mipmap.height, glFormat, mipmap.data );

						} else {

							state.compressedTexImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );

						}

					} else {

						console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );

					}

				} else {

					if ( useTexStorage ) {

						state.texSubImage2D( 3553, i, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data );

					} else {

						state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

					}

				}

			}

		} else if ( texture.isDataTexture2DArray ) {

			if ( useTexStorage ) {

				if ( allocateMemory ) {

					state.texStorage3D( 35866, levels, glInternalFormat, image.width, image.height, image.depth );

				}

				state.texSubImage3D( 35866, 0, 0, 0, 0, image.width, image.height, image.depth, glFormat, glType, image.data );

			} else {

				state.texImage3D( 35866, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data );

			}

		} else if ( texture.isDataTexture3D ) {

			if ( useTexStorage ) {

				if ( allocateMemory ) {

					state.texStorage3D( 32879, levels, glInternalFormat, image.width, image.height, image.depth );

				}

				state.texSubImage3D( 32879, 0, 0, 0, 0, image.width, image.height, image.depth, glFormat, glType, image.data );

			} else {

				state.texImage3D( 32879, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data );

			}

		} else if ( texture.isFramebufferTexture ) {

			if ( useTexStorage && allocateMemory ) {

				state.texStorage2D( 3553, levels, glInternalFormat, image.width, image.height );

			} else {

				state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null );

			}

		} else {

			// regular Texture (image, video, canvas)

			// use manually created mipmaps if available
			// if there are no manual mipmaps
			// set 0 level mipmap and then use GL to generate other mipmap levels

			if ( mipmaps.length > 0 && supportsMips ) {

				if ( useTexStorage && allocateMemory ) {

					state.texStorage2D( 3553, levels, glInternalFormat, mipmaps[ 0 ].width, mipmaps[ 0 ].height );

				}

				for ( let i = 0, il = mipmaps.length; i < il; i ++ ) {

					mipmap = mipmaps[ i ];

					if ( useTexStorage ) {

						state.texSubImage2D( 3553, i, 0, 0, glFormat, glType, mipmap );

					} else {

						state.texImage2D( 3553, i, glInternalFormat, glFormat, glType, mipmap );

					}

				}

				texture.generateMipmaps = false;

			} else {

				if ( useTexStorage ) {

					if ( allocateMemory ) {

						state.texStorage2D( 3553, levels, glInternalFormat, image.width, image.height );

					}

					state.texSubImage2D( 3553, 0, 0, 0, glFormat, glType, image );

				} else {

					state.texImage2D( 3553, 0, glInternalFormat, glFormat, glType, image );

				}

			}

		}

		if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

			generateMipmap( textureType );

		}

		textureProperties.__version = texture.version;

		if ( texture.onUpdate ) texture.onUpdate( texture );

	}

	function uploadCubeTexture( textureProperties, texture, slot ) {

		if ( texture.image.length !== 6 ) return;

		initTexture( textureProperties, texture );

		state.activeTexture( 33984 + slot );
		state.bindTexture( 34067, textureProperties.__webglTexture );

		_gl.pixelStorei( 37440, texture.flipY );
		_gl.pixelStorei( 37441, texture.premultiplyAlpha );
		_gl.pixelStorei( 3317, texture.unpackAlignment );
		_gl.pixelStorei( 37443, 0 );

		const isCompressed = ( texture && ( texture.isCompressedTexture || texture.image[ 0 ].isCompressedTexture ) );
		const isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );

		const cubeImage = [];

		for ( let i = 0; i < 6; i ++ ) {

			if ( ! isCompressed && ! isDataTexture ) {

				cubeImage[ i ] = resizeImage( texture.image[ i ], false, true, maxCubemapSize );

			} else {

				cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];

			}

			cubeImage[ i ] = verifyColorSpace( texture, cubeImage[ i ] );

		}

		const image = cubeImage[ 0 ],
			supportsMips = isPowerOfTwo$1( image ) || isWebGL2,
			glFormat = utils.convert( texture.format, texture.encoding ),
			glType = utils.convert( texture.type ),
			glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding );

		const useTexStorage = ( isWebGL2 && texture.isVideoTexture !== true );
		const allocateMemory = ( textureProperties.__version === undefined );
		let levels = getMipLevels( texture, image, supportsMips );

		setTextureParameters( 34067, texture, supportsMips );

		let mipmaps;

		if ( isCompressed ) {

			if ( useTexStorage && allocateMemory ) {

				state.texStorage2D( 34067, levels, glInternalFormat, image.width, image.height );

			}

			for ( let i = 0; i < 6; i ++ ) {

				mipmaps = cubeImage[ i ].mipmaps;

				for ( let j = 0; j < mipmaps.length; j ++ ) {

					const mipmap = mipmaps[ j ];

					if ( texture.format !== RGBAFormat ) {

						if ( glFormat !== null ) {

							if ( useTexStorage ) {

								state.compressedTexSubImage2D( 34069 + i, j, 0, 0, mipmap.width, mipmap.height, glFormat, mipmap.data );

							} else {

								state.compressedTexImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );

							}

						} else {

							console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' );

						}

					} else {

						if ( useTexStorage ) {

							state.texSubImage2D( 34069 + i, j, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data );

						} else {

							state.texImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

						}

					}

				}

			}

		} else {

			mipmaps = texture.mipmaps;

			if ( useTexStorage && allocateMemory ) {

				// TODO: Uniformly handle mipmap definitions
				// Normal textures and compressed cube textures define base level + mips with their mipmap array
				// Uncompressed cube textures use their mipmap array only for mips (no base level)

				if ( mipmaps.length > 0 ) levels ++;

				state.texStorage2D( 34067, levels, glInternalFormat, cubeImage[ 0 ].width, cubeImage[ 0 ].height );

			}

			for ( let i = 0; i < 6; i ++ ) {

				if ( isDataTexture ) {

					if ( useTexStorage ) {

						state.texSubImage2D( 34069 + i, 0, 0, 0, cubeImage[ i ].width, cubeImage[ i ].height, glFormat, glType, cubeImage[ i ].data );

					} else {

						state.texImage2D( 34069 + i, 0, glInternalFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );

					}

					for ( let j = 0; j < mipmaps.length; j ++ ) {

						const mipmap = mipmaps[ j ];
						const mipmapImage = mipmap.image[ i ].image;

						if ( useTexStorage ) {

							state.texSubImage2D( 34069 + i, j + 1, 0, 0, mipmapImage.width, mipmapImage.height, glFormat, glType, mipmapImage.data );

						} else {

							state.texImage2D( 34069 + i, j + 1, glInternalFormat, mipmapImage.width, mipmapImage.height, 0, glFormat, glType, mipmapImage.data );

						}

					}

				} else {

					if ( useTexStorage ) {

						state.texSubImage2D( 34069 + i, 0, 0, 0, glFormat, glType, cubeImage[ i ] );

					} else {

						state.texImage2D( 34069 + i, 0, glInternalFormat, glFormat, glType, cubeImage[ i ] );

					}

					for ( let j = 0; j < mipmaps.length; j ++ ) {

						const mipmap = mipmaps[ j ];

						if ( useTexStorage ) {

							state.texSubImage2D( 34069 + i, j + 1, 0, 0, glFormat, glType, mipmap.image[ i ] );

						} else {

							state.texImage2D( 34069 + i, j + 1, glInternalFormat, glFormat, glType, mipmap.image[ i ] );

						}

					}

				}

			}

		}

		if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

			// We assume images for cube map have the same size.
			generateMipmap( 34067 );

		}

		textureProperties.__version = texture.version;

		if ( texture.onUpdate ) texture.onUpdate( texture );

	}

	// Render targets

	// Setup storage for target texture and bind it to correct framebuffer
	function setupFrameBufferTexture( framebuffer, renderTarget, texture, attachment, textureTarget ) {

		const glFormat = utils.convert( texture.format, texture.encoding );
		const glType = utils.convert( texture.type );
		const glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding );
		const renderTargetProperties = properties.get( renderTarget );

		if ( ! renderTargetProperties.__hasExternalTextures ) {

			if ( textureTarget === 32879 || textureTarget === 35866 ) {

				state.texImage3D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, renderTarget.depth, 0, glFormat, glType, null );

			} else {

				state.texImage2D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );

			}

		}

		state.bindFramebuffer( 36160, framebuffer );
		if ( renderTarget.useRenderToTexture ) {

			MultisampledRenderToTextureExtension.framebufferTexture2DMultisampleEXT( 36160, attachment, textureTarget, properties.get( texture ).__webglTexture, 0, getRenderTargetSamples( renderTarget ) );

		} else {

			_gl.framebufferTexture2D( 36160, attachment, textureTarget, properties.get( texture ).__webglTexture, 0 );

		}

		state.bindFramebuffer( 36160, null );

	}


	// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
	function setupRenderBufferStorage( renderbuffer, renderTarget, isMultisample ) {

		_gl.bindRenderbuffer( 36161, renderbuffer );

		if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {

			let glInternalFormat = 33189;

			if ( isMultisample || renderTarget.useRenderToTexture ) {

				const depthTexture = renderTarget.depthTexture;

				if ( depthTexture && depthTexture.isDepthTexture ) {

					if ( depthTexture.type === FloatType ) {

						glInternalFormat = 36012;

					} else if ( depthTexture.type === UnsignedIntType ) {

						glInternalFormat = 33190;

					}

				}

				const samples = getRenderTargetSamples( renderTarget );

				if ( renderTarget.useRenderToTexture ) {

					MultisampledRenderToTextureExtension.renderbufferStorageMultisampleEXT( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

				} else {

					_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

				}

			} else {

				_gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height );

			}

			_gl.framebufferRenderbuffer( 36160, 36096, 36161, renderbuffer );

		} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {

			const samples = getRenderTargetSamples( renderTarget );

			if ( isMultisample && renderTarget.useRenderbuffer ) {

				_gl.renderbufferStorageMultisample( 36161, samples, 35056, renderTarget.width, renderTarget.height );

			} else if ( renderTarget.useRenderToTexture ) {

				MultisampledRenderToTextureExtension.renderbufferStorageMultisampleEXT( 36161, samples, 35056, renderTarget.width, renderTarget.height );

			} else {

				_gl.renderbufferStorage( 36161, 34041, renderTarget.width, renderTarget.height );

			}


			_gl.framebufferRenderbuffer( 36160, 33306, 36161, renderbuffer );

		} else {

			// Use the first texture for MRT so far
			const texture = renderTarget.isWebGLMultipleRenderTargets === true ? renderTarget.texture[ 0 ] : renderTarget.texture;

			const glFormat = utils.convert( texture.format, texture.encoding );
			const glType = utils.convert( texture.type );
			const glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding );
			const samples = getRenderTargetSamples( renderTarget );

			if ( isMultisample && renderTarget.useRenderbuffer ) {

				_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

			} else if ( renderTarget.useRenderToTexture ) {

				MultisampledRenderToTextureExtension.renderbufferStorageMultisampleEXT( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

			} else {

				_gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height );

			}

		}

		_gl.bindRenderbuffer( 36161, null );

	}

	// Setup resources for a Depth Texture for a FBO (needs an extension)
	function setupDepthTexture( framebuffer, renderTarget ) {

		const isCube = ( renderTarget && renderTarget.isWebGLCubeRenderTarget );
		if ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' );

		state.bindFramebuffer( 36160, framebuffer );

		if ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {

			throw new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' );

		}

		// upload an empty depth texture with framebuffer size
		if ( ! properties.get( renderTarget.depthTexture ).__webglTexture ||
				renderTarget.depthTexture.image.width !== renderTarget.width ||
				renderTarget.depthTexture.image.height !== renderTarget.height ) {

			renderTarget.depthTexture.image.width = renderTarget.width;
			renderTarget.depthTexture.image.height = renderTarget.height;
			renderTarget.depthTexture.needsUpdate = true;

		}

		setTexture2D( renderTarget.depthTexture, 0 );

		const webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;
		const samples = getRenderTargetSamples( renderTarget );

		if ( renderTarget.depthTexture.format === DepthFormat ) {

			if ( renderTarget.useRenderToTexture ) {

				MultisampledRenderToTextureExtension.framebufferTexture2DMultisampleEXT( 36160, 36096, 3553, webglDepthTexture, 0, samples );

			} else {

				_gl.framebufferTexture2D( 36160, 36096, 3553, webglDepthTexture, 0 );

			}

		} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {

			if ( renderTarget.useRenderToTexture ) {

				MultisampledRenderToTextureExtension.framebufferTexture2DMultisampleEXT( 36160, 33306, 3553, webglDepthTexture, 0, samples );

			} else {

				_gl.framebufferTexture2D( 36160, 33306, 3553, webglDepthTexture, 0 );

			}

		} else {

			throw new Error( 'Unknown depthTexture format' );

		}

	}

	// Setup GL resources for a non-texture depth buffer
	function setupDepthRenderbuffer( renderTarget ) {

		const renderTargetProperties = properties.get( renderTarget );
		const isCube = ( renderTarget.isWebGLCubeRenderTarget === true );

		if ( renderTarget.depthTexture && ! renderTargetProperties.__autoAllocateDepthBuffer ) {

			if ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' );

			setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );

		} else {

			if ( isCube ) {

				renderTargetProperties.__webglDepthbuffer = [];

				for ( let i = 0; i < 6; i ++ ) {

					state.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer[ i ] );
					renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();
					setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget, false );

				}

			} else {

				state.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer );
				renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
				setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget, false );

			}

		}

		state.bindFramebuffer( 36160, null );

	}

	// rebind framebuffer with external textures
	function rebindTextures( renderTarget, colorTexture, depthTexture ) {

		const renderTargetProperties = properties.get( renderTarget );

		if ( colorTexture !== undefined ) {

			setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, renderTarget.texture, 36064, 3553 );

		}

		if ( depthTexture !== undefined ) {

			setupDepthRenderbuffer( renderTarget );

		}

	}

	// Set up GL resources for the render target
	function setupRenderTarget( renderTarget ) {

		const texture = renderTarget.texture;

		const renderTargetProperties = properties.get( renderTarget );
		const textureProperties = properties.get( texture );

		renderTarget.addEventListener( 'dispose', onRenderTargetDispose );

		if ( renderTarget.isWebGLMultipleRenderTargets !== true ) {

			if ( textureProperties.__webglTexture === undefined ) {

				textureProperties.__webglTexture = _gl.createTexture();

			}

			textureProperties.__version = texture.version;
			info.memory.textures ++;

		}

		const isCube = ( renderTarget.isWebGLCubeRenderTarget === true );
		const isMultipleRenderTargets = ( renderTarget.isWebGLMultipleRenderTargets === true );
		const isRenderTarget3D = texture.isDataTexture3D || texture.isDataTexture2DArray;
		const supportsMips = isPowerOfTwo$1( renderTarget ) || isWebGL2;

		// Setup framebuffer

		if ( isCube ) {

			renderTargetProperties.__webglFramebuffer = [];

			for ( let i = 0; i < 6; i ++ ) {

				renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();

			}

		} else {

			renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();

			if ( isMultipleRenderTargets ) {

				if ( capabilities.drawBuffers ) {

					const textures = renderTarget.texture;

					for ( let i = 0, il = textures.length; i < il; i ++ ) {

						const attachmentProperties = properties.get( textures[ i ] );

						if ( attachmentProperties.__webglTexture === undefined ) {

							attachmentProperties.__webglTexture = _gl.createTexture();

							info.memory.textures ++;

						}

					}

				} else {

					console.warn( 'THREE.WebGLRenderer: WebGLMultipleRenderTargets can only be used with WebGL2 or WEBGL_draw_buffers extension.' );

				}

			} else if ( renderTarget.useRenderbuffer ) {

				if ( isWebGL2 ) {

					renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer();
					renderTargetProperties.__webglColorRenderbuffer = _gl.createRenderbuffer();

					_gl.bindRenderbuffer( 36161, renderTargetProperties.__webglColorRenderbuffer );

					const glFormat = utils.convert( texture.format, texture.encoding );
					const glType = utils.convert( texture.type );
					const glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding );
					const samples = getRenderTargetSamples( renderTarget );
					_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );

					state.bindFramebuffer( 36160, renderTargetProperties.__webglMultisampledFramebuffer );
					_gl.framebufferRenderbuffer( 36160, 36064, 36161, renderTargetProperties.__webglColorRenderbuffer );
					_gl.bindRenderbuffer( 36161, null );

					if ( renderTarget.depthBuffer ) {

						renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer();
						setupRenderBufferStorage( renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true );

					}

					state.bindFramebuffer( 36160, null );


				} else {

					console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' );

				}

			}

		}

		// Setup color buffer

		if ( isCube ) {

			state.bindTexture( 34067, textureProperties.__webglTexture );
			setTextureParameters( 34067, texture, supportsMips );

			for ( let i = 0; i < 6; i ++ ) {

				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, texture, 36064, 34069 + i );

			}

			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

				generateMipmap( 34067 );

			}

			state.unbindTexture();

		} else if ( isMultipleRenderTargets ) {

			const textures = renderTarget.texture;

			for ( let i = 0, il = textures.length; i < il; i ++ ) {

				const attachment = textures[ i ];
				const attachmentProperties = properties.get( attachment );

				state.bindTexture( 3553, attachmentProperties.__webglTexture );
				setTextureParameters( 3553, attachment, supportsMips );
				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, attachment, 36064 + i, 3553 );

				if ( textureNeedsGenerateMipmaps( attachment, supportsMips ) ) {

					generateMipmap( 3553 );

				}

			}

			state.unbindTexture();

		} else {

			let glTextureType = 3553;

			if ( isRenderTarget3D ) {

				// Render targets containing layers, i.e: Texture 3D and 2d arrays

				if ( isWebGL2 ) {

					const isTexture3D = texture.isDataTexture3D;
					glTextureType = isTexture3D ? 32879 : 35866;

				} else {

					console.warn( 'THREE.DataTexture3D and THREE.DataTexture2DArray only supported with WebGL2.' );

				}

			}

			state.bindTexture( glTextureType, textureProperties.__webglTexture );
			setTextureParameters( glTextureType, texture, supportsMips );
			setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, texture, 36064, glTextureType );

			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

				generateMipmap( glTextureType );

			}

			state.unbindTexture();

		}

		// Setup depth and stencil buffers

		if ( renderTarget.depthBuffer ) {

			setupDepthRenderbuffer( renderTarget );

		}

	}

	function updateRenderTargetMipmap( renderTarget ) {

		const supportsMips = isPowerOfTwo$1( renderTarget ) || isWebGL2;

		const textures = renderTarget.isWebGLMultipleRenderTargets === true ? renderTarget.texture : [ renderTarget.texture ];

		for ( let i = 0, il = textures.length; i < il; i ++ ) {

			const texture = textures[ i ];

			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {

				const target = renderTarget.isWebGLCubeRenderTarget ? 34067 : 3553;
				const webglTexture = properties.get( texture ).__webglTexture;

				state.bindTexture( target, webglTexture );
				generateMipmap( target );
				state.unbindTexture();

			}

		}

	}

	function updateMultisampleRenderTarget( renderTarget ) {

		if ( renderTarget.useRenderbuffer ) {

			if ( isWebGL2 ) {

				const width = renderTarget.width;
				const height = renderTarget.height;
				let mask = 16384;
				const invalidationArray = [ 36064 ];
				const depthStyle = renderTarget.stencilBuffer ? 33306 : 36096;

				if ( renderTarget.depthBuffer ) {

					invalidationArray.push( depthStyle );

				}

				if ( ! renderTarget.ignoreDepthForMultisampleCopy ) {

					if ( renderTarget.depthBuffer ) mask |= 256;
					if ( renderTarget.stencilBuffer ) mask |= 1024;

				}

				const renderTargetProperties = properties.get( renderTarget );

				state.bindFramebuffer( 36008, renderTargetProperties.__webglMultisampledFramebuffer );
				state.bindFramebuffer( 36009, renderTargetProperties.__webglFramebuffer );

				if ( renderTarget.ignoreDepthForMultisampleCopy ) {

					_gl.invalidateFramebuffer( 36008, [ depthStyle ] );
					_gl.invalidateFramebuffer( 36009, [ depthStyle ] );

				}

				_gl.blitFramebuffer( 0, 0, width, height, 0, 0, width, height, mask, 9728 );
				_gl.invalidateFramebuffer( 36008, invalidationArray );

				state.bindFramebuffer( 36008, null );
				state.bindFramebuffer( 36009, renderTargetProperties.__webglMultisampledFramebuffer );

			} else {

				console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' );

			}

		}

	}

	function getRenderTargetSamples( renderTarget ) {

		return ( isWebGL2 && ( renderTarget.useRenderbuffer || renderTarget.useRenderToTexture ) ) ?
			Math.min( maxSamples, renderTarget.samples ) : 0;

	}

	function updateVideoTexture( texture ) {

		const frame = info.render.frame;

		// Check the last frame we updated the VideoTexture

		if ( _videoTextures.get( texture ) !== frame ) {

			_videoTextures.set( texture, frame );
			texture.update();

		}

	}

	function verifyColorSpace( texture, image ) {

		const encoding = texture.encoding;
		const format = texture.format;
		const type = texture.type;

		if ( texture.isCompressedTexture === true || texture.isVideoTexture === true || texture.format === _SRGBAFormat ) return image;

		if ( encoding !== LinearEncoding ) {

			// sRGB

			if ( encoding === sRGBEncoding ) {

				if ( isWebGL2 === false ) {

					// in WebGL 1, try to use EXT_sRGB extension and unsized formats

					if ( extensions.has( 'EXT_sRGB' ) === true && format === RGBAFormat ) {

						texture.format = _SRGBAFormat;

						// it's not possible to generate mips in WebGL 1 with this extension

						texture.minFilter = LinearFilter;
						texture.generateMipmaps = false;

					} else {

						// slow fallback (CPU decode)

						image = ImageUtils.sRGBToLinear( image );

					}

				} else {

					// in WebGL 2 uncompressed textures can only be sRGB encoded if they have the RGBA8 format

					if ( format !== RGBAFormat || type !== UnsignedByteType ) {

						console.warn( 'THREE.WebGLTextures: sRGB encoded textures have to use RGBAFormat and UnsignedByteType.' );

					}

				}

			} else {

				console.error( 'THREE.WebGLTextures: Unsupported texture encoding:', encoding );

			}

		}

		return image;

	}

	// backwards compatibility

	let warnedTexture2D = false;
	let warnedTextureCube = false;

	function safeSetTexture2D( texture, slot ) {

		if ( texture && texture.isWebGLRenderTarget ) {

			if ( warnedTexture2D === false ) {

				console.warn( 'THREE.WebGLTextures.safeSetTexture2D: don\'t use render targets as textures. Use their .texture property instead.' );
				warnedTexture2D = true;

			}

			texture = texture.texture;

		}

		setTexture2D( texture, slot );

	}

	function safeSetTextureCube( texture, slot ) {

		if ( texture && texture.isWebGLCubeRenderTarget ) {

			if ( warnedTextureCube === false ) {

				console.warn( 'THREE.WebGLTextures.safeSetTextureCube: don\'t use cube render targets as textures. Use their .texture property instead.' );
				warnedTextureCube = true;

			}

			texture = texture.texture;

		}


		setTextureCube( texture, slot );

	}

	//

	this.allocateTextureUnit = allocateTextureUnit;
	this.resetTextureUnits = resetTextureUnits;

	this.setTexture2D = setTexture2D;
	this.setTexture2DArray = setTexture2DArray;
	this.setTexture3D = setTexture3D;
	this.setTextureCube = setTextureCube;
	this.rebindTextures = rebindTextures;
	this.setupRenderTarget = setupRenderTarget;
	this.updateRenderTargetMipmap = updateRenderTargetMipmap;
	this.updateMultisampleRenderTarget = updateMultisampleRenderTarget;
	this.setupDepthRenderbuffer = setupDepthRenderbuffer;
	this.setupFrameBufferTexture = setupFrameBufferTexture;

	this.safeSetTexture2D = safeSetTexture2D;
	this.safeSetTextureCube = safeSetTextureCube;

}

function WebGLUtils( gl, extensions, capabilities ) {

	const isWebGL2 = capabilities.isWebGL2;

	function convert( p, encoding = null ) {

		let extension;

		if ( p === UnsignedByteType ) return 5121;
		if ( p === UnsignedShort4444Type ) return 32819;
		if ( p === UnsignedShort5551Type ) return 32820;

		if ( p === ByteType ) return 5120;
		if ( p === ShortType ) return 5122;
		if ( p === UnsignedShortType ) return 5123;
		if ( p === IntType ) return 5124;
		if ( p === UnsignedIntType ) return 5125;
		if ( p === FloatType ) return 5126;

		if ( p === HalfFloatType ) {

			if ( isWebGL2 ) return 5131;

			extension = extensions.get( 'OES_texture_half_float' );

			if ( extension !== null ) {

				return extension.HALF_FLOAT_OES;

			} else {

				return null;

			}

		}

		if ( p === AlphaFormat ) return 6406;
		if ( p === RGBAFormat ) return 6408;
		if ( p === LuminanceFormat ) return 6409;
		if ( p === LuminanceAlphaFormat ) return 6410;
		if ( p === DepthFormat ) return 6402;
		if ( p === DepthStencilFormat ) return 34041;
		if ( p === RedFormat ) return 6403;

		if ( p === RGBFormat ) {

			console.warn( 'THREE.WebGLRenderer: THREE.RGBFormat has been removed. Use THREE.RGBAFormat instead. https://github.com/mrdoob/three.js/pull/23228' );
			return 6408;

		}

		// WebGL 1 sRGB fallback

		if ( p === _SRGBAFormat ) {

			extension = extensions.get( 'EXT_sRGB' );

			if ( extension !== null ) {

				return extension.SRGB_ALPHA_EXT;

			} else {

				return null;

			}

		}

		// WebGL2 formats.

		if ( p === RedIntegerFormat ) return 36244;
		if ( p === RGFormat ) return 33319;
		if ( p === RGIntegerFormat ) return 33320;
		if ( p === RGBAIntegerFormat ) return 36249;

		// S3TC

		if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {

			if ( encoding === sRGBEncoding ) {

				extension = extensions.get( 'WEBGL_compressed_texture_s3tc_srgb' );

				if ( extension !== null ) {

					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_SRGB_S3TC_DXT1_EXT;
					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;

				} else {

					return null;

				}

			} else {

				extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );

				if ( extension !== null ) {

					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;

				} else {

					return null;

				}

			}

		}

		// PVRTC

		if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {

			extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );

			if ( extension !== null ) {

				if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
				if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
				if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
				if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;

			} else {

				return null;

			}

		}

		// ETC1

		if ( p === RGB_ETC1_Format ) {

			extension = extensions.get( 'WEBGL_compressed_texture_etc1' );

			if ( extension !== null ) {

				return extension.COMPRESSED_RGB_ETC1_WEBGL;

			} else {

				return null;

			}

		}

		// ETC2

		if ( p === RGB_ETC2_Format || p === RGBA_ETC2_EAC_Format ) {

			extension = extensions.get( 'WEBGL_compressed_texture_etc' );

			if ( extension !== null ) {

				if ( p === RGB_ETC2_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ETC2 : extension.COMPRESSED_RGB8_ETC2;
				if ( p === RGBA_ETC2_EAC_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC : extension.COMPRESSED_RGBA8_ETC2_EAC;

			} else {

				return null;

			}

		}

		// ASTC

		if ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format ||
			p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format ||
			p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format ||
			p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format ||
			p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format ) {

			extension = extensions.get( 'WEBGL_compressed_texture_astc' );

			if ( extension !== null ) {

				if ( p === RGBA_ASTC_4x4_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR : extension.COMPRESSED_RGBA_ASTC_4x4_KHR;
				if ( p === RGBA_ASTC_5x4_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR : extension.COMPRESSED_RGBA_ASTC_5x4_KHR;
				if ( p === RGBA_ASTC_5x5_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR : extension.COMPRESSED_RGBA_ASTC_5x5_KHR;
				if ( p === RGBA_ASTC_6x5_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR : extension.COMPRESSED_RGBA_ASTC_6x5_KHR;
				if ( p === RGBA_ASTC_6x6_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR : extension.COMPRESSED_RGBA_ASTC_6x6_KHR;
				if ( p === RGBA_ASTC_8x5_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR : extension.COMPRESSED_RGBA_ASTC_8x5_KHR;
				if ( p === RGBA_ASTC_8x6_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR : extension.COMPRESSED_RGBA_ASTC_8x6_KHR;
				if ( p === RGBA_ASTC_8x8_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR : extension.COMPRESSED_RGBA_ASTC_8x8_KHR;
				if ( p === RGBA_ASTC_10x5_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR : extension.COMPRESSED_RGBA_ASTC_10x5_KHR;
				if ( p === RGBA_ASTC_10x6_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR : extension.COMPRESSED_RGBA_ASTC_10x6_KHR;
				if ( p === RGBA_ASTC_10x8_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR : extension.COMPRESSED_RGBA_ASTC_10x8_KHR;
				if ( p === RGBA_ASTC_10x10_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR : extension.COMPRESSED_RGBA_ASTC_10x10_KHR;
				if ( p === RGBA_ASTC_12x10_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR : extension.COMPRESSED_RGBA_ASTC_12x10_KHR;
				if ( p === RGBA_ASTC_12x12_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR : extension.COMPRESSED_RGBA_ASTC_12x12_KHR;

			} else {

				return null;

			}

		}

		// BPTC

		if ( p === RGBA_BPTC_Format ) {

			extension = extensions.get( 'EXT_texture_compression_bptc' );

			if ( extension !== null ) {

				if ( p === RGBA_BPTC_Format ) return ( encoding === sRGBEncoding ) ? extension.COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT : extension.COMPRESSED_RGBA_BPTC_UNORM_EXT;

			} else {

				return null;

			}

		}

		//

		if ( p === UnsignedInt248Type ) {

			if ( isWebGL2 ) return 34042;

			extension = extensions.get( 'WEBGL_depth_texture' );

			if ( extension !== null ) {

				return extension.UNSIGNED_INT_24_8_WEBGL;

			} else {

				return null;

			}

		}

	}

	return { convert: convert };

}

class ArrayCamera extends PerspectiveCamera {

	constructor( array = [] ) {

		super();

		this.cameras = array;

	}

}

ArrayCamera.prototype.isArrayCamera = true;

class Group extends Object3D {

	constructor() {

		super();

		this.type = 'Group';

	}

}

Group.prototype.isGroup = true;

const _moveEvent = { type: 'move' };

class WebXRController {

	constructor() {

		this._targetRay = null;
		this._grip = null;
		this._hand = null;

	}

	getHandSpace() {

		if ( this._hand === null ) {

			this._hand = new Group();
			this._hand.matrixAutoUpdate = false;
			this._hand.visible = false;

			this._hand.joints = {};
			this._hand.inputState = { pinching: false };

		}

		return this._hand;

	}

	getTargetRaySpace() {

		if ( this._targetRay === null ) {

			this._targetRay = new Group();
			this._targetRay.matrixAutoUpdate = false;
			this._targetRay.visible = false;
			this._targetRay.hasLinearVelocity = false;
			this._targetRay.linearVelocity = new Vector3();
			this._targetRay.hasAngularVelocity = false;
			this._targetRay.angularVelocity = new Vector3();

		}

		return this._targetRay;

	}

	getGripSpace() {

		if ( this._grip === null ) {

			this._grip = new Group();
			this._grip.matrixAutoUpdate = false;
			this._grip.visible = false;
			this._grip.hasLinearVelocity = false;
			this._grip.linearVelocity = new Vector3();
			this._grip.hasAngularVelocity = false;
			this._grip.angularVelocity = new Vector3();

		}

		return this._grip;

	}

	dispatchEvent( event ) {

		if ( this._targetRay !== null ) {

			this._targetRay.dispatchEvent( event );

		}

		if ( this._grip !== null ) {

			this._grip.dispatchEvent( event );

		}

		if ( this._hand !== null ) {

			this._hand.dispatchEvent( event );

		}

		return this;

	}

	disconnect( inputSource ) {

		this.dispatchEvent( { type: 'disconnected', data: inputSource } );

		if ( this._targetRay !== null ) {

			this._targetRay.visible = false;

		}

		if ( this._grip !== null ) {

			this._grip.visible = false;

		}

		if ( this._hand !== null ) {

			this._hand.visible = false;

		}

		return this;

	}

	update( inputSource, frame, referenceSpace ) {

		let inputPose = null;
		let gripPose = null;
		let handPose = null;

		const targetRay = this._targetRay;
		const grip = this._grip;
		const hand = this._hand;

		if ( inputSource && frame.session.visibilityState !== 'visible-blurred' ) {

			if ( targetRay !== null ) {

				inputPose = frame.getPose( inputSource.targetRaySpace, referenceSpace );

				if ( inputPose !== null ) {

					targetRay.matrix.fromArray( inputPose.transform.matrix );
					targetRay.matrix.decompose( targetRay.position, targetRay.rotation, targetRay.scale );

					if ( inputPose.linearVelocity ) {

						targetRay.hasLinearVelocity = true;
						targetRay.linearVelocity.copy( inputPose.linearVelocity );

					} else {

						targetRay.hasLinearVelocity = false;

					}

					if ( inputPose.angularVelocity ) {

						targetRay.hasAngularVelocity = true;
						targetRay.angularVelocity.copy( inputPose.angularVelocity );

					} else {

						targetRay.hasAngularVelocity = false;

					}

					this.dispatchEvent( _moveEvent );

				}

			}

			if ( hand && inputSource.hand ) {

				handPose = true;

				for ( const inputjoint of inputSource.hand.values() ) {

					// Update the joints groups with the XRJoint poses
					const jointPose = frame.getJointPose( inputjoint, referenceSpace );

					if ( hand.joints[ inputjoint.jointName ] === undefined ) {

						// The transform of this joint will be updated with the joint pose on each frame
						const joint = new Group();
						joint.matrixAutoUpdate = false;
						joint.visible = false;
						hand.joints[ inputjoint.jointName ] = joint;
						// ??
						hand.add( joint );

					}

					const joint = hand.joints[ inputjoint.jointName ];

					if ( jointPose !== null ) {

						joint.matrix.fromArray( jointPose.transform.matrix );
						joint.matrix.decompose( joint.position, joint.rotation, joint.scale );
						joint.jointRadius = jointPose.radius;

					}

					joint.visible = jointPose !== null;

				}

				// Custom events

				// Check pinchz
				const indexTip = hand.joints[ 'index-finger-tip' ];
				const thumbTip = hand.joints[ 'thumb-tip' ];
				const distance = indexTip.position.distanceTo( thumbTip.position );

				const distanceToPinch = 0.02;
				const threshold = 0.005;

				if ( hand.inputState.pinching && distance > distanceToPinch + threshold ) {

					hand.inputState.pinching = false;
					this.dispatchEvent( {
						type: 'pinchend',
						handedness: inputSource.handedness,
						target: this
					} );

				} else if ( ! hand.inputState.pinching && distance <= distanceToPinch - threshold ) {

					hand.inputState.pinching = true;
					this.dispatchEvent( {
						type: 'pinchstart',
						handedness: inputSource.handedness,
						target: this
					} );

				}

			} else {

				if ( grip !== null && inputSource.gripSpace ) {

					gripPose = frame.getPose( inputSource.gripSpace, referenceSpace );

					if ( gripPose !== null ) {

						grip.matrix.fromArray( gripPose.transform.matrix );
						grip.matrix.decompose( grip.position, grip.rotation, grip.scale );

						if ( gripPose.linearVelocity ) {

							grip.hasLinearVelocity = true;
							grip.linearVelocity.copy( gripPose.linearVelocity );

						} else {

							grip.hasLinearVelocity = false;

						}

						if ( gripPose.angularVelocity ) {

							grip.hasAngularVelocity = true;
							grip.angularVelocity.copy( gripPose.angularVelocity );

						} else {

							grip.hasAngularVelocity = false;

						}

					}

				}

			}

		}

		if ( targetRay !== null ) {

			targetRay.visible = ( inputPose !== null );

		}

		if ( grip !== null ) {

			grip.visible = ( gripPose !== null );

		}

		if ( hand !== null ) {

			hand.visible = ( handPose !== null );

		}

		return this;

	}

}

class DepthTexture extends Texture {

	constructor( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {

		format = format !== undefined ? format : DepthFormat;

		if ( format !== DepthFormat && format !== DepthStencilFormat ) {

			throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );

		}

		if ( type === undefined && format === DepthFormat ) type = UnsignedShortType;
		if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;

		super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

		this.image = { width: width, height: height };

		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;

		this.flipY = false;
		this.generateMipmaps	= false;

	}


}

DepthTexture.prototype.isDepthTexture = true;

class WebXRManager extends EventDispatcher {

	constructor( renderer, gl ) {

		super();

		const scope = this;

		let session = null;
		let framebufferScaleFactor = 1.0;

		let referenceSpace = null;
		let referenceSpaceType = 'local-floor';
		const hasMultisampledRenderToTexture = renderer.extensions.has( 'WEBGL_multisampled_render_to_texture' );

		let pose = null;
		let glBinding = null;
		let glProjLayer = null;
		let glBaseLayer = null;
		let isMultisample = false;
		let xrFrame = null;
		const attributes = gl.getContextAttributes();
		let initialRenderTarget = null;
		let newRenderTarget = null;

		const controllers = [];
		const inputSourcesMap = new Map();

		//

		const cameraL = new PerspectiveCamera();
		cameraL.layers.enable( 1 );
		cameraL.viewport = new Vector4();

		const cameraR = new PerspectiveCamera();
		cameraR.layers.enable( 2 );
		cameraR.viewport = new Vector4();

		const cameras = [ cameraL, cameraR ];

		const cameraVR = new ArrayCamera();
		cameraVR.layers.enable( 1 );
		cameraVR.layers.enable( 2 );

		let _currentDepthNear = null;
		let _currentDepthFar = null;

		//

		this.cameraAutoUpdate = true;
		this.enabled = false;

		this.isPresenting = false;

		this.getController = function ( index ) {

			let controller = controllers[ index ];

			if ( controller === undefined ) {

				controller = new WebXRController();
				controllers[ index ] = controller;

			}

			return controller.getTargetRaySpace();

		};

		this.getControllerGrip = function ( index ) {

			let controller = controllers[ index ];

			if ( controller === undefined ) {

				controller = new WebXRController();
				controllers[ index ] = controller;

			}

			return controller.getGripSpace();

		};

		this.getHand = function ( index ) {

			let controller = controllers[ index ];

			if ( controller === undefined ) {

				controller = new WebXRController();
				controllers[ index ] = controller;

			}

			return controller.getHandSpace();

		};

		//

		function onSessionEvent( event ) {

			const controller = inputSourcesMap.get( event.inputSource );

			if ( controller ) {

				controller.dispatchEvent( { type: event.type, data: event.inputSource } );

			}

		}

		function onSessionEnd() {

			inputSourcesMap.forEach( function ( controller, inputSource ) {

				controller.disconnect( inputSource );

			} );

			inputSourcesMap.clear();

			_currentDepthNear = null;
			_currentDepthFar = null;

			// restore framebuffer/rendering state

			renderer.setRenderTarget( initialRenderTarget );

			glBaseLayer = null;
			glProjLayer = null;
			glBinding = null;
			session = null;
			newRenderTarget = null;

			//

			animation.stop();

			scope.isPresenting = false;

			scope.dispatchEvent( { type: 'sessionend' } );

		}

		this.setFramebufferScaleFactor = function ( value ) {

			framebufferScaleFactor = value;

			if ( scope.isPresenting === true ) {

				console.warn( 'THREE.WebXRManager: Cannot change framebuffer scale while presenting.' );

			}

		};

		this.setReferenceSpaceType = function ( value ) {

			referenceSpaceType = value;

			if ( scope.isPresenting === true ) {

				console.warn( 'THREE.WebXRManager: Cannot change reference space type while presenting.' );

			}

		};

		this.getReferenceSpace = function () {

			return referenceSpace;

		};

		this.getBaseLayer = function () {

			return glProjLayer !== null ? glProjLayer : glBaseLayer;

		};

		this.getBinding = function () {

			return glBinding;

		};

		this.getFrame = function () {

			return xrFrame;

		};

		this.getSession = function () {

			return session;

		};

		this.setSession = async function ( value ) {

			session = value;

			if ( session !== null ) {

				initialRenderTarget = renderer.getRenderTarget();

				session.addEventListener( 'select', onSessionEvent );
				session.addEventListener( 'selectstart', onSessionEvent );
				session.addEventListener( 'selectend', onSessionEvent );
				session.addEventListener( 'squeeze', onSessionEvent );
				session.addEventListener( 'squeezestart', onSessionEvent );
				session.addEventListener( 'squeezeend', onSessionEvent );
				session.addEventListener( 'end', onSessionEnd );
				session.addEventListener( 'inputsourceschange', onInputSourcesChange );

				if ( attributes.xrCompatible !== true ) {

					await gl.makeXRCompatible();

				}

				if ( ( session.renderState.layers === undefined ) || ( renderer.capabilities.isWebGL2 === false ) ) {

					const layerInit = {
						antialias: ( session.renderState.layers === undefined ) ? attributes.antialias : true,
						alpha: attributes.alpha,
						depth: attributes.depth,
						stencil: attributes.stencil,
						framebufferScaleFactor: framebufferScaleFactor
					};

					glBaseLayer = new XRWebGLLayer( session, gl, layerInit );

					session.updateRenderState( { baseLayer: glBaseLayer } );

					newRenderTarget = new WebGLRenderTarget(
						glBaseLayer.framebufferWidth,
						glBaseLayer.framebufferHeight,
						{
							format: RGBAFormat,
							type: UnsignedByteType,
							encoding: renderer.outputEncoding
						}
					);

				} else {

					isMultisample = attributes.antialias;
					let depthFormat = null;
					let depthType = null;
					let glDepthFormat = null;

					if ( attributes.depth ) {

						glDepthFormat = attributes.stencil ? 35056 : 33190;
						depthFormat = attributes.stencil ? DepthStencilFormat : DepthFormat;
						depthType = attributes.stencil ? UnsignedInt248Type : UnsignedShortType;

					}

					const projectionlayerInit = {
						colorFormat: ( renderer.outputEncoding === sRGBEncoding ) ? 35907 : 32856,
						depthFormat: glDepthFormat,
						scaleFactor: framebufferScaleFactor
					};

					glBinding = new XRWebGLBinding( session, gl );

					glProjLayer = glBinding.createProjectionLayer( projectionlayerInit );

					session.updateRenderState( { layers: [ glProjLayer ] } );

					if ( isMultisample ) {

						newRenderTarget = new WebGLMultisampleRenderTarget(
							glProjLayer.textureWidth,
							glProjLayer.textureHeight,
							{
								format: RGBAFormat,
								type: UnsignedByteType,
								depthTexture: new DepthTexture( glProjLayer.textureWidth, glProjLayer.textureHeight, depthType, undefined, undefined, undefined, undefined, undefined, undefined, depthFormat ),
								stencilBuffer: attributes.stencil,
								ignoreDepth: glProjLayer.ignoreDepthValues,
								useRenderToTexture: hasMultisampledRenderToTexture,
								encoding: renderer.outputEncoding
							} );

					} else {

						newRenderTarget = new WebGLRenderTarget(
							glProjLayer.textureWidth,
							glProjLayer.textureHeight,
							{
								format: RGBAFormat,
								type: UnsignedByteType,
								depthTexture: new DepthTexture( glProjLayer.textureWidth, glProjLayer.textureHeight, depthType, undefined, undefined, undefined, undefined, undefined, undefined, depthFormat ),
								stencilBuffer: attributes.stencil,
								ignoreDepth: glProjLayer.ignoreDepthValues,
								encoding: renderer.outputEncoding
							} );

					}

				}

				newRenderTarget.isXRRenderTarget = true; // TODO Remove this when possible, see #23278

				// Set foveation to maximum.
				this.setFoveation( 1.0 );

				referenceSpace = await session.requestReferenceSpace( referenceSpaceType );

				animation.setContext( session );
				animation.start();

				scope.isPresenting = true;

				scope.dispatchEvent( { type: 'sessionstart' } );

			}

		};

		function onInputSourcesChange( event ) {

			const inputSources = session.inputSources;

			// Assign inputSources to available controllers

			for ( let i = 0; i < controllers.length; i ++ ) {

				inputSourcesMap.set( inputSources[ i ], controllers[ i ] );

			}

			// Notify disconnected

			for ( let i = 0; i < event.removed.length; i ++ ) {

				const inputSource = event.removed[ i ];
				const controller = inputSourcesMap.get( inputSource );

				if ( controller ) {

					controller.dispatchEvent( { type: 'disconnected', data: inputSource } );
					inputSourcesMap.delete( inputSource );

				}

			}

			// Notify connected

			for ( let i = 0; i < event.added.length; i ++ ) {

				const inputSource = event.added[ i ];
				const controller = inputSourcesMap.get( inputSource );

				if ( controller ) {

					controller.dispatchEvent( { type: 'connected', data: inputSource } );

				}

			}

		}

		//

		const cameraLPos = new Vector3();
		const cameraRPos = new Vector3();

		/**
		 * Assumes 2 cameras that are parallel and share an X-axis, and that
		 * the cameras' projection and world matrices have already been set.
		 * And that near and far planes are identical for both cameras.
		 * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765
		 */
		function setProjectionFromUnion( camera, cameraL, cameraR ) {

			cameraLPos.setFromMatrixPosition( cameraL.matrixWorld );
			cameraRPos.setFromMatrixPosition( cameraR.matrixWorld );

			const ipd = cameraLPos.distanceTo( cameraRPos );

			const projL = cameraL.projectionMatrix.elements;
			const projR = cameraR.projectionMatrix.elements;

			// VR systems will have identical far and near planes, and
			// most likely identical top and bottom frustum extents.
			// Use the left camera for these values.
			const near = projL[ 14 ] / ( projL[ 10 ] - 1 );
			const far = projL[ 14 ] / ( projL[ 10 ] + 1 );
			const topFov = ( projL[ 9 ] + 1 ) / projL[ 5 ];
			const bottomFov = ( projL[ 9 ] - 1 ) / projL[ 5 ];

			const leftFov = ( projL[ 8 ] - 1 ) / projL[ 0 ];
			const rightFov = ( projR[ 8 ] + 1 ) / projR[ 0 ];
			const left = near * leftFov;
			const right = near * rightFov;

			// Calculate the new camera's position offset from the
			// left camera. xOffset should be roughly half `ipd`.
			const zOffset = ipd / ( - leftFov + rightFov );
			const xOffset = zOffset * - leftFov;

			// TODO: Better way to apply this offset?
			cameraL.matrixWorld.decompose( camera.position, camera.quaternion, camera.scale );
			camera.translateX( xOffset );
			camera.translateZ( zOffset );
			camera.matrixWorld.compose( camera.position, camera.quaternion, camera.scale );
			camera.matrixWorldInverse.copy( camera.matrixWorld ).invert();

			// Find the union of the frustum values of the cameras and scale
			// the values so that the near plane's position does not change in world space,
			// although must now be relative to the new union camera.
			const near2 = near + zOffset;
			const far2 = far + zOffset;
			const left2 = left - xOffset;
			const right2 = right + ( ipd - xOffset );
			const top2 = topFov * far / far2 * near2;
			const bottom2 = bottomFov * far / far2 * near2;

			camera.projectionMatrix.makePerspective( left2, right2, top2, bottom2, near2, far2 );

		}

		function updateCamera( camera, parent ) {

			if ( parent === null ) {

				camera.matrixWorld.copy( camera.matrix );

			} else {

				camera.matrixWorld.multiplyMatrices( parent.matrixWorld, camera.matrix );

			}

			camera.matrixWorldInverse.copy( camera.matrixWorld ).invert();

		}

		this.updateCamera = function ( camera ) {

			if ( session === null ) return;

			cameraVR.near = cameraR.near = cameraL.near = camera.near;
			cameraVR.far = cameraR.far = cameraL.far = camera.far;

			if ( _currentDepthNear !== cameraVR.near || _currentDepthFar !== cameraVR.far ) {

				// Note that the new renderState won't apply until the next frame. See #18320

				session.updateRenderState( {
					depthNear: cameraVR.near,
					depthFar: cameraVR.far
				} );

				_currentDepthNear = cameraVR.near;
				_currentDepthFar = cameraVR.far;

			}

			const parent = camera.parent;
			const cameras = cameraVR.cameras;

			updateCamera( cameraVR, parent );

			for ( let i = 0; i < cameras.length; i ++ ) {

				updateCamera( cameras[ i ], parent );

			}

			cameraVR.matrixWorld.decompose( cameraVR.position, cameraVR.quaternion, cameraVR.scale );

			// update user camera and its children

			camera.position.copy( cameraVR.position );
			camera.quaternion.copy( cameraVR.quaternion );
			camera.scale.copy( cameraVR.scale );
			camera.matrix.copy( cameraVR.matrix );
			camera.matrixWorld.copy( cameraVR.matrixWorld );

			const children = camera.children;

			for ( let i = 0, l = children.length; i < l; i ++ ) {

				children[ i ].updateMatrixWorld( true );

			}

			// update projection matrix for proper view frustum culling

			if ( cameras.length === 2 ) {

				setProjectionFromUnion( cameraVR, cameraL, cameraR );

			} else {

				// assume single camera setup (AR)

				cameraVR.projectionMatrix.copy( cameraL.projectionMatrix );

			}

		};

		this.getCamera = function () {

			return cameraVR;

		};

		this.getFoveation = function () {

			if ( glProjLayer !== null ) {

				return glProjLayer.fixedFoveation;

			}

			if ( glBaseLayer !== null ) {

				return glBaseLayer.fixedFoveation;

			}

			return undefined;

		};

		this.setFoveation = function ( foveation ) {

			// 0 = no foveation = full resolution
			// 1 = maximum foveation = the edges render at lower resolution

			if ( glProjLayer !== null ) {

				glProjLayer.fixedFoveation = foveation;

			}

			if ( glBaseLayer !== null && glBaseLayer.fixedFoveation !== undefined ) {

				glBaseLayer.fixedFoveation = foveation;

			}

		};

		// Animation Loop

		let onAnimationFrameCallback = null;

		function onAnimationFrame( time, frame ) {

			pose = frame.getViewerPose( referenceSpace );
			xrFrame = frame;

			if ( pose !== null ) {

				const views = pose.views;

				if ( glBaseLayer !== null ) {

					renderer.setRenderTargetFramebuffer( newRenderTarget, glBaseLayer.framebuffer );
					renderer.setRenderTarget( newRenderTarget );

				}

				let cameraVRNeedsUpdate = false;

				// check if it's necessary to rebuild cameraVR's camera list

				if ( views.length !== cameraVR.cameras.length ) {

					cameraVR.cameras.length = 0;
					cameraVRNeedsUpdate = true;

				}

				for ( let i = 0; i < views.length; i ++ ) {

					const view = views[ i ];

					let viewport = null;

					if ( glBaseLayer !== null ) {

						viewport = glBaseLayer.getViewport( view );

					} else {

						const glSubImage = glBinding.getViewSubImage( glProjLayer, view );
						viewport = glSubImage.viewport;

						// For side-by-side projection, we only produce a single texture for both eyes.
						if ( i === 0 ) {

							renderer.setRenderTargetTextures(
								newRenderTarget,
								glSubImage.colorTexture,
								glProjLayer.ignoreDepthValues ? undefined : glSubImage.depthStencilTexture );

							renderer.setRenderTarget( newRenderTarget );

						}

					}

					const camera = cameras[ i ];

					camera.matrix.fromArray( view.transform.matrix );
					camera.projectionMatrix.fromArray( view.projectionMatrix );
					camera.viewport.set( viewport.x, viewport.y, viewport.width, viewport.height );

					if ( i === 0 ) {

						cameraVR.matrix.copy( camera.matrix );

					}

					if ( cameraVRNeedsUpdate === true ) {

						cameraVR.cameras.push( camera );

					}

				}

			}

			//

			const inputSources = session.inputSources;

			for ( let i = 0; i < controllers.length; i ++ ) {

				const controller = controllers[ i ];
				const inputSource = inputSources[ i ];

				controller.update( inputSource, frame, referenceSpace );

			}

			if ( onAnimationFrameCallback ) onAnimationFrameCallback( time, frame );

			xrFrame = null;

		}

		const animation = new WebGLAnimation();

		animation.setAnimationLoop( onAnimationFrame );

		this.setAnimationLoop = function ( callback ) {

			onAnimationFrameCallback = callback;

		};

		this.dispose = function () {};

	}

}

function WebGLMaterials( properties ) {

	function refreshFogUniforms( uniforms, fog ) {

		uniforms.fogColor.value.copy( fog.color );

		if ( fog.isFog ) {

			uniforms.fogNear.value = fog.near;
			uniforms.fogFar.value = fog.far;

		} else if ( fog.isFogExp2 ) {

			uniforms.fogDensity.value = fog.density;

		}

	}

	function refreshMaterialUniforms( uniforms, material, pixelRatio, height, transmissionRenderTarget ) {

		if ( material.isMeshBasicMaterial ) {

			refreshUniformsCommon( uniforms, material );

		} else if ( material.isMeshLambertMaterial ) {

			refreshUniformsCommon( uniforms, material );
			refreshUniformsLambert( uniforms, material );

		} else if ( material.isMeshToonMaterial ) {

			refreshUniformsCommon( uniforms, material );
			refreshUniformsToon( uniforms, material );

		} else if ( material.isMeshPhongMaterial ) {

			refreshUniformsCommon( uniforms, material );
			refreshUniformsPhong( uniforms, material );

		} else if ( material.isMeshStandardMaterial ) {

			refreshUniformsCommon( uniforms, material );

			if ( material.isMeshPhysicalMaterial ) {

				refreshUniformsPhysical( uniforms, material, transmissionRenderTarget );

			} else {

				refreshUniformsStandard( uniforms, material );

			}

		} else if ( material.isMeshMatcapMaterial ) {

			refreshUniformsCommon( uniforms, material );
			refreshUniformsMatcap( uniforms, material );

		} else if ( material.isMeshDepthMaterial ) {

			refreshUniformsCommon( uniforms, material );
			refreshUniformsDepth( uniforms, material );

		} else if ( material.isMeshDistanceMaterial ) {

			refreshUniformsCommon( uniforms, material );
			refreshUniformsDistance( uniforms, material );

		} else if ( material.isMeshNormalMaterial ) {

			refreshUniformsCommon( uniforms, material );
			refreshUniformsNormal( uniforms, material );

		} else if ( material.isLineBasicMaterial ) {

			refreshUniformsLine( uniforms, material );

			if ( material.isLineDashedMaterial ) {

				refreshUniformsDash( uniforms, material );

			}

		} else if ( material.isPointsMaterial ) {

			refreshUniformsPoints( uniforms, material, pixelRatio, height );

		} else if ( material.isSpriteMaterial ) {

			refreshUniformsSprites( uniforms, material );

		} else if ( material.isShadowMaterial ) {

			uniforms.color.value.copy( material.color );
			uniforms.opacity.value = material.opacity;

		} else if ( material.isShaderMaterial ) {

			material.uniformsNeedUpdate = false; // #15581

		}

	}

	function refreshUniformsCommon( uniforms, material ) {

		uniforms.opacity.value = material.opacity;

		if ( material.color ) {

			uniforms.diffuse.value.copy( material.color );

		}

		if ( material.emissive ) {

			uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );

		}

		if ( material.map ) {

			uniforms.map.value = material.map;

		}

		if ( material.alphaMap ) {

			uniforms.alphaMap.value = material.alphaMap;

		}

		if ( material.specularMap ) {

			uniforms.specularMap.value = material.specularMap;

		}

		if ( material.alphaTest > 0 ) {

			uniforms.alphaTest.value = material.alphaTest;

		}

		const envMap = properties.get( material ).envMap;

		if ( envMap ) {

			uniforms.envMap.value = envMap;

			uniforms.flipEnvMap.value = ( envMap.isCubeTexture && envMap.isRenderTargetTexture === false ) ? - 1 : 1;

			uniforms.reflectivity.value = material.reflectivity;
			uniforms.ior.value = material.ior;
			uniforms.refractionRatio.value = material.refractionRatio;

		}

		if ( material.lightMap ) {

			uniforms.lightMap.value = material.lightMap;
			uniforms.lightMapIntensity.value = material.lightMapIntensity;

		}

		if ( material.aoMap ) {

			uniforms.aoMap.value = material.aoMap;
			uniforms.aoMapIntensity.value = material.aoMapIntensity;

		}

		// uv repeat and offset setting priorities
		// 1. color map
		// 2. specular map
		// 3. displacementMap map
		// 4. normal map
		// 5. bump map
		// 6. roughnessMap map
		// 7. metalnessMap map
		// 8. alphaMap map
		// 9. emissiveMap map
		// 10. clearcoat map
		// 11. clearcoat normal map
		// 12. clearcoat roughnessMap map
		// 13. specular intensity map
		// 14. specular tint map
		// 15. transmission map
		// 16. thickness map

		let uvScaleMap;

		if ( material.map ) {

			uvScaleMap = material.map;

		} else if ( material.specularMap ) {

			uvScaleMap = material.specularMap;

		} else if ( material.displacementMap ) {

			uvScaleMap = material.displacementMap;

		} else if ( material.normalMap ) {

			uvScaleMap = material.normalMap;

		} else if ( material.bumpMap ) {

			uvScaleMap = material.bumpMap;

		} else if ( material.roughnessMap ) {

			uvScaleMap = material.roughnessMap;

		} else if ( material.metalnessMap ) {

			uvScaleMap = material.metalnessMap;

		} else if ( material.alphaMap ) {

			uvScaleMap = material.alphaMap;

		} else if ( material.emissiveMap ) {

			uvScaleMap = material.emissiveMap;

		} else if ( material.clearcoatMap ) {

			uvScaleMap = material.clearcoatMap;

		} else if ( material.clearcoatNormalMap ) {

			uvScaleMap = material.clearcoatNormalMap;

		} else if ( material.clearcoatRoughnessMap ) {

			uvScaleMap = material.clearcoatRoughnessMap;

		} else if ( material.specularIntensityMap ) {

			uvScaleMap = material.specularIntensityMap;

		} else if ( material.specularColorMap ) {

			uvScaleMap = material.specularColorMap;

		} else if ( material.transmissionMap ) {

			uvScaleMap = material.transmissionMap;

		} else if ( material.thicknessMap ) {

			uvScaleMap = material.thicknessMap;

		} else if ( material.sheenColorMap ) {

			uvScaleMap = material.sheenColorMap;

		} else if ( material.sheenRoughnessMap ) {

			uvScaleMap = material.sheenRoughnessMap;

		}

		if ( uvScaleMap !== undefined ) {

			// backwards compatibility
			if ( uvScaleMap.isWebGLRenderTarget ) {

				uvScaleMap = uvScaleMap.texture;

			}

			if ( uvScaleMap.matrixAutoUpdate === true ) {

				uvScaleMap.updateMatrix();

			}

			uniforms.uvTransform.value.copy( uvScaleMap.matrix );

		}

		// uv repeat and offset setting priorities for uv2
		// 1. ao map
		// 2. light map

		let uv2ScaleMap;

		if ( material.aoMap ) {

			uv2ScaleMap = material.aoMap;

		} else if ( material.lightMap ) {

			uv2ScaleMap = material.lightMap;

		}

		if ( uv2ScaleMap !== undefined ) {

			// backwards compatibility
			if ( uv2ScaleMap.isWebGLRenderTarget ) {

				uv2ScaleMap = uv2ScaleMap.texture;

			}

			if ( uv2ScaleMap.matrixAutoUpdate === true ) {

				uv2ScaleMap.updateMatrix();

			}

			uniforms.uv2Transform.value.copy( uv2ScaleMap.matrix );

		}

	}

	function refreshUniformsLine( uniforms, material ) {

		uniforms.diffuse.value.copy( material.color );
		uniforms.opacity.value = material.opacity;

	}

	function refreshUniformsDash( uniforms, material ) {

		uniforms.dashSize.value = material.dashSize;
		uniforms.totalSize.value = material.dashSize + material.gapSize;
		uniforms.scale.value = material.scale;

	}

	function refreshUniformsPoints( uniforms, material, pixelRatio, height ) {

		uniforms.diffuse.value.copy( material.color );
		uniforms.opacity.value = material.opacity;
		uniforms.size.value = material.size * pixelRatio;
		uniforms.scale.value = height * 0.5;

		if ( material.map ) {

			uniforms.map.value = material.map;

		}

		if ( material.alphaMap ) {

			uniforms.alphaMap.value = material.alphaMap;

		}

		if ( material.alphaTest > 0 ) {

			uniforms.alphaTest.value = material.alphaTest;

		}

		// uv repeat and offset setting priorities
		// 1. color map
		// 2. alpha map

		let uvScaleMap;

		if ( material.map ) {

			uvScaleMap = material.map;

		} else if ( material.alphaMap ) {

			uvScaleMap = material.alphaMap;

		}

		if ( uvScaleMap !== undefined ) {

			if ( uvScaleMap.matrixAutoUpdate === true ) {

				uvScaleMap.updateMatrix();

			}

			uniforms.uvTransform.value.copy( uvScaleMap.matrix );

		}

	}

	function refreshUniformsSprites( uniforms, material ) {

		uniforms.diffuse.value.copy( material.color );
		uniforms.opacity.value = material.opacity;
		uniforms.rotation.value = material.rotation;

		if ( material.map ) {

			uniforms.map.value = material.map;

		}

		if ( material.alphaMap ) {

			uniforms.alphaMap.value = material.alphaMap;

		}

		if ( material.alphaTest > 0 ) {

			uniforms.alphaTest.value = material.alphaTest;

		}

		// uv repeat and offset setting priorities
		// 1. color map
		// 2. alpha map

		let uvScaleMap;

		if ( material.map ) {

			uvScaleMap = material.map;

		} else if ( material.alphaMap ) {

			uvScaleMap = material.alphaMap;

		}

		if ( uvScaleMap !== undefined ) {

			if ( uvScaleMap.matrixAutoUpdate === true ) {

				uvScaleMap.updateMatrix();

			}

			uniforms.uvTransform.value.copy( uvScaleMap.matrix );

		}

	}

	function refreshUniformsLambert( uniforms, material ) {

		if ( material.emissiveMap ) {

			uniforms.emissiveMap.value = material.emissiveMap;

		}

	}

	function refreshUniformsPhong( uniforms, material ) {

		uniforms.specular.value.copy( material.specular );
		uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )

		if ( material.emissiveMap ) {

			uniforms.emissiveMap.value = material.emissiveMap;

		}

		if ( material.bumpMap ) {

			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;

		}

		if ( material.normalMap ) {

			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy( material.normalScale );
			if ( material.side === BackSide ) uniforms.normalScale.value.negate();

		}

		if ( material.displacementMap ) {

			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;

		}

	}

	function refreshUniformsToon( uniforms, material ) {

		if ( material.gradientMap ) {

			uniforms.gradientMap.value = material.gradientMap;

		}

		if ( material.emissiveMap ) {

			uniforms.emissiveMap.value = material.emissiveMap;

		}

		if ( material.bumpMap ) {

			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;

		}

		if ( material.normalMap ) {

			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy( material.normalScale );
			if ( material.side === BackSide ) uniforms.normalScale.value.negate();

		}

		if ( material.displacementMap ) {

			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;

		}

	}

	function refreshUniformsStandard( uniforms, material ) {

		uniforms.roughness.value = material.roughness;
		uniforms.metalness.value = material.metalness;

		if ( material.roughnessMap ) {

			uniforms.roughnessMap.value = material.roughnessMap;

		}

		if ( material.metalnessMap ) {

			uniforms.metalnessMap.value = material.metalnessMap;

		}

		if ( material.emissiveMap ) {

			uniforms.emissiveMap.value = material.emissiveMap;

		}

		if ( material.bumpMap ) {

			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;

		}

		if ( material.normalMap ) {

			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy( material.normalScale );
			if ( material.side === BackSide ) uniforms.normalScale.value.negate();

		}

		if ( material.displacementMap ) {

			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;

		}

		const envMap = properties.get( material ).envMap;

		if ( envMap ) {

			//uniforms.envMap.value = material.envMap; // part of uniforms common
			uniforms.envMapIntensity.value = material.envMapIntensity;

		}

	}

	function refreshUniformsPhysical( uniforms, material, transmissionRenderTarget ) {

		refreshUniformsStandard( uniforms, material );

		uniforms.ior.value = material.ior; // also part of uniforms common

		if ( material.sheen > 0 ) {

			uniforms.sheenColor.value.copy( material.sheenColor ).multiplyScalar( material.sheen );

			uniforms.sheenRoughness.value = material.sheenRoughness;

			if ( material.sheenColorMap ) {

				uniforms.sheenColorMap.value = material.sheenColorMap;

			}

			if ( material.sheenRoughnessMap ) {

				uniforms.sheenRoughnessMap.value = material.sheenRoughnessMap;

			}

		}

		if ( material.clearcoat > 0 ) {

			uniforms.clearcoat.value = material.clearcoat;
			uniforms.clearcoatRoughness.value = material.clearcoatRoughness;

			if ( material.clearcoatMap ) {

				uniforms.clearcoatMap.value = material.clearcoatMap;

			}

			if ( material.clearcoatRoughnessMap ) {

				uniforms.clearcoatRoughnessMap.value = material.clearcoatRoughnessMap;

			}

			if ( material.clearcoatNormalMap ) {

				uniforms.clearcoatNormalScale.value.copy( material.clearcoatNormalScale );
				uniforms.clearcoatNormalMap.value = material.clearcoatNormalMap;

				if ( material.side === BackSide ) {

					uniforms.clearcoatNormalScale.value.negate();

				}

			}

		}

		if ( material.transmission > 0 ) {

			uniforms.transmission.value = material.transmission;
			uniforms.transmissionSamplerMap.value = transmissionRenderTarget.texture;
			uniforms.transmissionSamplerSize.value.set( transmissionRenderTarget.width, transmissionRenderTarget.height );

			if ( material.transmissionMap ) {

				uniforms.transmissionMap.value = material.transmissionMap;

			}

			uniforms.thickness.value = material.thickness;

			if ( material.thicknessMap ) {

				uniforms.thicknessMap.value = material.thicknessMap;

			}

			uniforms.attenuationDistance.value = material.attenuationDistance;
			uniforms.attenuationColor.value.copy( material.attenuationColor );

		}

		uniforms.specularIntensity.value = material.specularIntensity;
		uniforms.specularColor.value.copy( material.specularColor );

		if ( material.specularIntensityMap ) {

			uniforms.specularIntensityMap.value = material.specularIntensityMap;

		}

		if ( material.specularColorMap ) {

			uniforms.specularColorMap.value = material.specularColorMap;

		}

	}

	function refreshUniformsMatcap( uniforms, material ) {

		if ( material.matcap ) {

			uniforms.matcap.value = material.matcap;

		}

		if ( material.bumpMap ) {

			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;

		}

		if ( material.normalMap ) {

			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy( material.normalScale );
			if ( material.side === BackSide ) uniforms.normalScale.value.negate();

		}

		if ( material.displacementMap ) {

			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;

		}

	}

	function refreshUniformsDepth( uniforms, material ) {

		if ( material.displacementMap ) {

			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;

		}

	}

	function refreshUniformsDistance( uniforms, material ) {

		if ( material.displacementMap ) {

			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;

		}

		uniforms.referencePosition.value.copy( material.referencePosition );
		uniforms.nearDistance.value = material.nearDistance;
		uniforms.farDistance.value = material.farDistance;

	}

	function refreshUniformsNormal( uniforms, material ) {

		if ( material.bumpMap ) {

			uniforms.bumpMap.value = material.bumpMap;
			uniforms.bumpScale.value = material.bumpScale;
			if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;

		}

		if ( material.normalMap ) {

			uniforms.normalMap.value = material.normalMap;
			uniforms.normalScale.value.copy( material.normalScale );
			if ( material.side === BackSide ) uniforms.normalScale.value.negate();

		}

		if ( material.displacementMap ) {

			uniforms.displacementMap.value = material.displacementMap;
			uniforms.displacementScale.value = material.displacementScale;
			uniforms.displacementBias.value = material.displacementBias;

		}

	}

	return {
		refreshFogUniforms: refreshFogUniforms,
		refreshMaterialUniforms: refreshMaterialUniforms
	};

}

function createCanvasElement() {

	const canvas = createElementNS( 'canvas' );
	canvas.style.display = 'block';
	return canvas;

}

function WebGLRenderer( parameters = {} ) {

	const _canvas = parameters.canvas !== undefined ? parameters.canvas : createCanvasElement(),
		_context = parameters.context !== undefined ? parameters.context : null,

		_alpha = parameters.alpha !== undefined ? parameters.alpha : false,
		_depth = parameters.depth !== undefined ? parameters.depth : true,
		_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
		_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
		_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
		_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,
		_powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default',
		_failIfMajorPerformanceCaveat = parameters.failIfMajorPerformanceCaveat !== undefined ? parameters.failIfMajorPerformanceCaveat : false;

	let currentRenderList = null;
	let currentRenderState = null;

	// render() can be called from within a callback triggered by another render.
	// We track this so that the nested render call gets its list and state isolated from the parent render call.

	const renderListStack = [];
	const renderStateStack = [];

	// public properties

	this.domElement = _canvas;

	// Debug configuration container
	this.debug = {

		/**
		 * Enables error checking and reporting when shader programs are being compiled
		 * @type {boolean}
		 */
		checkShaderErrors: true
	};

	// clearing

	this.autoClear = true;
	this.autoClearColor = true;
	this.autoClearDepth = true;
	this.autoClearStencil = true;

	// scene graph

	this.sortObjects = true;

	// user-defined clipping

	this.clippingPlanes = [];
	this.localClippingEnabled = false;

	// physically based shading

	this.outputEncoding = LinearEncoding;

	// physical lights

	this.physicallyCorrectLights = false;

	// tone mapping

	this.toneMapping = NoToneMapping;
	this.toneMappingExposure = 1.0;

	// internal properties

	const _this = this;

	let _isContextLost = false;

	// internal state cache

	let _currentActiveCubeFace = 0;
	let _currentActiveMipmapLevel = 0;
	let _currentRenderTarget = null;
	let _currentMaterialId = - 1;

	let _currentCamera = null;

	const _currentViewport = new Vector4();
	const _currentScissor = new Vector4();
	let _currentScissorTest = null;

	//

	let _width = _canvas.width;
	let _height = _canvas.height;

	let _pixelRatio = 1;
	let _opaqueSort = null;
	let _transparentSort = null;

	const _viewport = new Vector4( 0, 0, _width, _height );
	const _scissor = new Vector4( 0, 0, _width, _height );
	let _scissorTest = false;

	// frustum

	const _frustum = new Frustum();

	// clipping

	let _clippingEnabled = false;
	let _localClippingEnabled = false;

	// transmission

	let _transmissionRenderTarget = null;

	// camera matrices cache

	const _projScreenMatrix = new Matrix4();

	const _vector3 = new Vector3();

	const _emptyScene = { background: null, fog: null, environment: null, overrideMaterial: null, isScene: true };

	function getTargetPixelRatio() {

		return _currentRenderTarget === null ? _pixelRatio : 1;

	}

	// initialize

	let _gl = _context;

	function getContext( contextNames, contextAttributes ) {

		for ( let i = 0; i < contextNames.length; i ++ ) {

			const contextName = contextNames[ i ];
			const context = _canvas.getContext( contextName, contextAttributes );
			if ( context !== null ) return context;

		}

		return null;

	}

	try {

		const contextAttributes = {
			alpha: true,
			depth: _depth,
			stencil: _stencil,
			antialias: _antialias,
			premultipliedAlpha: _premultipliedAlpha,
			preserveDrawingBuffer: _preserveDrawingBuffer,
			powerPreference: _powerPreference,
			failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat
		};

		// OffscreenCanvas does not have setAttribute, see #22811
		if ( 'setAttribute' in _canvas ) _canvas.setAttribute( 'data-engine', `three.js r${REVISION}` );

		// event listeners must be registered before WebGL context is created, see #12753
		_canvas.addEventListener( 'webglcontextlost', onContextLost, false );
		_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );

		if ( _gl === null ) {

			const contextNames = [ 'webgl2', 'webgl', 'experimental-webgl' ];

			if ( _this.isWebGL1Renderer === true ) {

				contextNames.shift();

			}

			_gl = getContext( contextNames, contextAttributes );

			if ( _gl === null ) {

				if ( getContext( contextNames ) ) {

					throw new Error( 'Error creating WebGL context with your selected attributes.' );

				} else {

					throw new Error( 'Error creating WebGL context.' );

				}

			}

		}

		// Some experimental-webgl implementations do not have getShaderPrecisionFormat

		if ( _gl.getShaderPrecisionFormat === undefined ) {

			_gl.getShaderPrecisionFormat = function () {

				return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };

			};

		}

	} catch ( error ) {

		console.error( 'THREE.WebGLRenderer: ' + error.message );
		throw error;

	}

	let extensions, capabilities, state, info;
	let properties, textures, cubemaps, cubeuvmaps, attributes, geometries, objects;
	let programCache, materials, renderLists, renderStates, clipping, shadowMap;

	let background, morphtargets, bufferRenderer, indexedBufferRenderer;

	let utils, bindingStates;

	function initGLContext() {

		extensions = new WebGLExtensions( _gl );

		capabilities = new WebGLCapabilities( _gl, extensions, parameters );

		extensions.init( capabilities );

		utils = new WebGLUtils( _gl, extensions, capabilities );

		state = new WebGLState( _gl, extensions, capabilities );

		info = new WebGLInfo( _gl );
		properties = new WebGLProperties();
		textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info );
		cubemaps = new WebGLCubeMaps( _this );
		cubeuvmaps = new WebGLCubeUVMaps( _this );
		attributes = new WebGLAttributes( _gl, capabilities );
		bindingStates = new WebGLBindingStates( _gl, extensions, attributes, capabilities );
		geometries = new WebGLGeometries( _gl, attributes, info, bindingStates );
		objects = new WebGLObjects( _gl, geometries, attributes, info );
		morphtargets = new WebGLMorphtargets( _gl, capabilities, textures );
		clipping = new WebGLClipping( properties );
		programCache = new WebGLPrograms( _this, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping );
		materials = new WebGLMaterials( properties );
		renderLists = new WebGLRenderLists();
		renderStates = new WebGLRenderStates( extensions, capabilities );
		background = new WebGLBackground( _this, cubemaps, state, objects, _alpha, _premultipliedAlpha );
		shadowMap = new WebGLShadowMap( _this, objects, capabilities );

		bufferRenderer = new WebGLBufferRenderer( _gl, extensions, info, capabilities );
		indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info, capabilities );

		info.programs = programCache.programs;

		_this.capabilities = capabilities;
		_this.extensions = extensions;
		_this.properties = properties;
		_this.renderLists = renderLists;
		_this.shadowMap = shadowMap;
		_this.state = state;
		_this.info = info;

	}

	initGLContext();

	// xr

	const xr = new WebXRManager( _this, _gl );

	this.xr = xr;

	// API

	this.getContext = function () {

		return _gl;

	};

	this.getContextAttributes = function () {

		return _gl.getContextAttributes();

	};

	this.forceContextLoss = function () {

		const extension = extensions.get( 'WEBGL_lose_context' );
		if ( extension ) extension.loseContext();

	};

	this.forceContextRestore = function () {

		const extension = extensions.get( 'WEBGL_lose_context' );
		if ( extension ) extension.restoreContext();

	};

	this.getPixelRatio = function () {

		return _pixelRatio;

	};

	this.setPixelRatio = function ( value ) {

		if ( value === undefined ) return;

		_pixelRatio = value;

		this.setSize( _width, _height, false );

	};

	this.getSize = function ( target ) {

		return target.set( _width, _height );

	};

	this.setSize = function ( width, height, updateStyle ) {

		if ( xr.isPresenting ) {

			console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' );
			return;

		}

		_width = width;
		_height = height;

		_canvas.width = Math.floor( width * _pixelRatio );
		_canvas.height = Math.floor( height * _pixelRatio );

		if ( updateStyle !== false ) {

			_canvas.style.width = width + 'px';
			_canvas.style.height = height + 'px';

		}

		this.setViewport( 0, 0, width, height );

	};

	this.getDrawingBufferSize = function ( target ) {

		return target.set( _width * _pixelRatio, _height * _pixelRatio ).floor();

	};

	this.setDrawingBufferSize = function ( width, height, pixelRatio ) {

		_width = width;
		_height = height;

		_pixelRatio = pixelRatio;

		_canvas.width = Math.floor( width * pixelRatio );
		_canvas.height = Math.floor( height * pixelRatio );

		this.setViewport( 0, 0, width, height );

	};

	this.getCurrentViewport = function ( target ) {

		return target.copy( _currentViewport );

	};

	this.getViewport = function ( target ) {

		return target.copy( _viewport );

	};

	this.setViewport = function ( x, y, width, height ) {

		if ( x.isVector4 ) {

			_viewport.set( x.x, x.y, x.z, x.w );

		} else {

			_viewport.set( x, y, width, height );

		}

		state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor() );

	};

	this.getScissor = function ( target ) {

		return target.copy( _scissor );

	};

	this.setScissor = function ( x, y, width, height ) {

		if ( x.isVector4 ) {

			_scissor.set( x.x, x.y, x.z, x.w );

		} else {

			_scissor.set( x, y, width, height );

		}

		state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor() );

	};

	this.getScissorTest = function () {

		return _scissorTest;

	};

	this.setScissorTest = function ( boolean ) {

		state.setScissorTest( _scissorTest = boolean );

	};

	this.setOpaqueSort = function ( method ) {

		_opaqueSort = method;

	};

	this.setTransparentSort = function ( method ) {

		_transparentSort = method;

	};

	// Clearing

	this.getClearColor = function ( target ) {

		return target.copy( background.getClearColor() );

	};

	this.setClearColor = function () {

		background.setClearColor.apply( background, arguments );

	};

	this.getClearAlpha = function () {

		return background.getClearAlpha();

	};

	this.setClearAlpha = function () {

		background.setClearAlpha.apply( background, arguments );

	};

	this.clear = function ( color, depth, stencil ) {

		let bits = 0;

		if ( color === undefined || color ) bits |= 16384;
		if ( depth === undefined || depth ) bits |= 256;
		if ( stencil === undefined || stencil ) bits |= 1024;

		_gl.clear( bits );

	};

	this.clearColor = function () {

		this.clear( true, false, false );

	};

	this.clearDepth = function () {

		this.clear( false, true, false );

	};

	this.clearStencil = function () {

		this.clear( false, false, true );

	};

	//

	this.dispose = function () {

		_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );
		_canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );

		renderLists.dispose();
		renderStates.dispose();
		properties.dispose();
		cubemaps.dispose();
		cubeuvmaps.dispose();
		objects.dispose();
		bindingStates.dispose();
		programCache.dispose();

		xr.dispose();

		xr.removeEventListener( 'sessionstart', onXRSessionStart );
		xr.removeEventListener( 'sessionend', onXRSessionEnd );

		if ( _transmissionRenderTarget ) {

			_transmissionRenderTarget.dispose();
			_transmissionRenderTarget = null;

		}

		animation.stop();

	};

	// Events

	function onContextLost( event ) {

		event.preventDefault();

		console.log( 'THREE.WebGLRenderer: Context Lost.' );

		_isContextLost = true;

	}

	function onContextRestore( /* event */ ) {

		console.log( 'THREE.WebGLRenderer: Context Restored.' );

		_isContextLost = false;

		const infoAutoReset = info.autoReset;
		const shadowMapEnabled = shadowMap.enabled;
		const shadowMapAutoUpdate = shadowMap.autoUpdate;
		const shadowMapNeedsUpdate = shadowMap.needsUpdate;
		const shadowMapType = shadowMap.type;

		initGLContext();

		info.autoReset = infoAutoReset;
		shadowMap.enabled = shadowMapEnabled;
		shadowMap.autoUpdate = shadowMapAutoUpdate;
		shadowMap.needsUpdate = shadowMapNeedsUpdate;
		shadowMap.type = shadowMapType;

	}

	function onMaterialDispose( event ) {

		const material = event.target;

		material.removeEventListener( 'dispose', onMaterialDispose );

		deallocateMaterial( material );

	}

	// Buffer deallocation

	function deallocateMaterial( material ) {

		releaseMaterialProgramReferences( material );

		properties.remove( material );

	}


	function releaseMaterialProgramReferences( material ) {

		const programs = properties.get( material ).programs;

		if ( programs !== undefined ) {

			programs.forEach( function ( program ) {

				programCache.releaseProgram( program );

			} );

			if ( material.isShaderMaterial ) {

				programCache.releaseShaderCache( material );

			}

		}

	}

	// Buffer rendering

	this.renderBufferDirect = function ( camera, scene, geometry, material, object, group ) {

		if ( scene === null ) scene = _emptyScene; // renderBufferDirect second parameter used to be fog (could be null)

		const frontFaceCW = ( object.isMesh && object.matrixWorld.determinant() < 0 );

		const program = setProgram( camera, scene, geometry, material, object );

		state.setMaterial( material, frontFaceCW );

		//

		let index = geometry.index;
		const position = geometry.attributes.position;

		//

		if ( index === null ) {

			if ( position === undefined || position.count === 0 ) return;

		} else if ( index.count === 0 ) {

			return;

		}

		//

		let rangeFactor = 1;

		if ( material.wireframe === true ) {

			index = geometries.getWireframeAttribute( geometry );
			rangeFactor = 2;

		}

		bindingStates.setup( object, material, program, geometry, index );

		let attribute;
		let renderer = bufferRenderer;

		if ( index !== null ) {

			attribute = attributes.get( index );

			renderer = indexedBufferRenderer;
			renderer.setIndex( attribute );

		}

		//

		const dataCount = ( index !== null ) ? index.count : position.count;

		const rangeStart = geometry.drawRange.start * rangeFactor;
		const rangeCount = geometry.drawRange.count * rangeFactor;

		const groupStart = group !== null ? group.start * rangeFactor : 0;
		const groupCount = group !== null ? group.count * rangeFactor : Infinity;

		const drawStart = Math.max( rangeStart, groupStart );
		const drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;

		const drawCount = Math.max( 0, drawEnd - drawStart + 1 );

		if ( drawCount === 0 ) return;

		//

		if ( object.isMesh ) {

			if ( material.wireframe === true ) {

				state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
				renderer.setMode( 1 );

			} else {

				renderer.setMode( 4 );

			}

		} else if ( object.isLine ) {

			let lineWidth = material.linewidth;

			if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material

			state.setLineWidth( lineWidth * getTargetPixelRatio() );

			if ( object.isLineSegments ) {

				renderer.setMode( 1 );

			} else if ( object.isLineLoop ) {

				renderer.setMode( 2 );

			} else {

				renderer.setMode( 3 );

			}

		} else if ( object.isPoints ) {

			renderer.setMode( 0 );

		} else if ( object.isSprite ) {

			renderer.setMode( 4 );

		}

		if ( object.isInstancedMesh ) {

			renderer.renderInstances( drawStart, drawCount, object.count );

		} else if ( geometry.isInstancedBufferGeometry ) {

			const instanceCount = Math.min( geometry.instanceCount, geometry._maxInstanceCount );

			renderer.renderInstances( drawStart, drawCount, instanceCount );

		} else {

			renderer.render( drawStart, drawCount );

		}

	};

	// Compile

	this.compile = function ( scene, camera ) {

		currentRenderState = renderStates.get( scene );
		currentRenderState.init();

		renderStateStack.push( currentRenderState );

		scene.traverseVisible( function ( object ) {

			if ( object.isLight && object.layers.test( camera.layers ) ) {

				currentRenderState.pushLight( object );

				if ( object.castShadow ) {

					currentRenderState.pushShadow( object );

				}

			}

		} );

		currentRenderState.setupLights( _this.physicallyCorrectLights );

		scene.traverse( function ( object ) {

			const material = object.material;

			if ( material ) {

				if ( Array.isArray( material ) ) {

					for ( let i = 0; i < material.length; i ++ ) {

						const material2 = material[ i ];

						getProgram( material2, scene, object );

					}

				} else {

					getProgram( material, scene, object );

				}

			}

		} );

		renderStateStack.pop();
		currentRenderState = null;

	};

	// Animation Loop

	let onAnimationFrameCallback = null;

	function onAnimationFrame( time ) {

		if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );

	}

	function onXRSessionStart() {

		animation.stop();

	}

	function onXRSessionEnd() {

		animation.start();

	}

	const animation = new WebGLAnimation();
	animation.setAnimationLoop( onAnimationFrame );

	if ( typeof window !== 'undefined' ) animation.setContext( window );

	this.setAnimationLoop = function ( callback ) {

		onAnimationFrameCallback = callback;
		xr.setAnimationLoop( callback );

		( callback === null ) ? animation.stop() : animation.start();

	};

	xr.addEventListener( 'sessionstart', onXRSessionStart );
	xr.addEventListener( 'sessionend', onXRSessionEnd );

	// Rendering

	this.render = function ( scene, camera ) {

		if ( camera !== undefined && camera.isCamera !== true ) {

			console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
			return;

		}

		if ( _isContextLost === true ) return;

		// update scene graph

		if ( scene.autoUpdate === true ) scene.updateMatrixWorld();

		// update camera matrices and frustum

		if ( camera.parent === null ) camera.updateMatrixWorld();

		if ( xr.enabled === true && xr.isPresenting === true ) {

			if ( xr.cameraAutoUpdate === true ) xr.updateCamera( camera );

			camera = xr.getCamera(); // use XR camera for rendering

		}

		//
		if ( scene.isScene === true ) scene.onBeforeRender( _this, scene, camera, _currentRenderTarget );

		currentRenderState = renderStates.get( scene, renderStateStack.length );
		currentRenderState.init();

		renderStateStack.push( currentRenderState );

		_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
		_frustum.setFromProjectionMatrix( _projScreenMatrix );

		_localClippingEnabled = this.localClippingEnabled;
		_clippingEnabled = clipping.init( this.clippingPlanes, _localClippingEnabled, camera );

		currentRenderList = renderLists.get( scene, renderListStack.length );
		currentRenderList.init();

		renderListStack.push( currentRenderList );

		projectObject( scene, camera, 0, _this.sortObjects );

		currentRenderList.finish();

		if ( _this.sortObjects === true ) {

			currentRenderList.sort( _opaqueSort, _transparentSort );

		}

		//

		if ( _clippingEnabled === true ) clipping.beginShadows();

		const shadowsArray = currentRenderState.state.shadowsArray;

		shadowMap.render( shadowsArray, scene, camera );

		if ( _clippingEnabled === true ) clipping.endShadows();

		//

		if ( this.info.autoReset === true ) this.info.reset();

		//

		background.render( currentRenderList, scene );

		// render scene

		currentRenderState.setupLights( _this.physicallyCorrectLights );

		if ( camera.isArrayCamera ) {

			const cameras = camera.cameras;

			for ( let i = 0, l = cameras.length; i < l; i ++ ) {

				const camera2 = cameras[ i ];

				renderScene( currentRenderList, scene, camera2, camera2.viewport );

			}

		} else {

			renderScene( currentRenderList, scene, camera );

		}

		//

		if ( _currentRenderTarget !== null ) {

			// resolve multisample renderbuffers to a single-sample texture if necessary

			textures.updateMultisampleRenderTarget( _currentRenderTarget );

			// Generate mipmap if we're using any kind of mipmap filtering

			textures.updateRenderTargetMipmap( _currentRenderTarget );

		}

		//

		if ( scene.isScene === true ) scene.onAfterRender( _this, scene, camera );

		// Ensure depth buffer writing is enabled so it can be cleared on next render

		state.buffers.depth.setTest( true );
		state.buffers.depth.setMask( true );
		state.buffers.color.setMask( true );

		state.setPolygonOffset( false );

		// _gl.finish();

		bindingStates.resetDefaultState();
		_currentMaterialId = - 1;
		_currentCamera = null;

		renderStateStack.pop();

		if ( renderStateStack.length > 0 ) {

			currentRenderState = renderStateStack[ renderStateStack.length - 1 ];

		} else {

			currentRenderState = null;

		}

		renderListStack.pop();

		if ( renderListStack.length > 0 ) {

			currentRenderList = renderListStack[ renderListStack.length - 1 ];

		} else {

			currentRenderList = null;

		}

	};

	function projectObject( object, camera, groupOrder, sortObjects ) {

		if ( object.visible === false ) return;

		const visible = object.layers.test( camera.layers );

		if ( visible ) {

			if ( object.isGroup ) {

				groupOrder = object.renderOrder;

			} else if ( object.isLOD ) {

				if ( object.autoUpdate === true ) object.update( camera );

			} else if ( object.isLight ) {

				currentRenderState.pushLight( object );

				if ( object.castShadow ) {

					currentRenderState.pushShadow( object );

				}

			} else if ( object.isSprite ) {

				if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {

					if ( sortObjects ) {

						_vector3.setFromMatrixPosition( object.matrixWorld )
							.applyMatrix4( _projScreenMatrix );

					}

					const geometry = objects.update( object );
					const material = object.material;

					if ( material.visible ) {

						currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null );

					}

				}

			} else if ( object.isMesh || object.isLine || object.isPoints ) {

				if ( object.isSkinnedMesh ) {

					// update skeleton only once in a frame

					if ( object.skeleton.frame !== info.render.frame ) {

						object.skeleton.update();
						object.skeleton.frame = info.render.frame;

					}

				}

				if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {

					if ( sortObjects ) {

						_vector3.setFromMatrixPosition( object.matrixWorld )
							.applyMatrix4( _projScreenMatrix );

					}

					const geometry = objects.update( object );
					const material = object.material;

					if ( Array.isArray( material ) ) {

						const groups = geometry.groups;

						for ( let i = 0, l = groups.length; i < l; i ++ ) {

							const group = groups[ i ];
							const groupMaterial = material[ group.materialIndex ];

							if ( groupMaterial && groupMaterial.visible ) {

								currentRenderList.push( object, geometry, groupMaterial, groupOrder, _vector3.z, group );

							}

						}

					} else if ( material.visible ) {

						currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null );

					}

				}

			}

		}

		const children = object.children;

		for ( let i = 0, l = children.length; i < l; i ++ ) {

			projectObject( children[ i ], camera, groupOrder, sortObjects );

		}

	}

	function renderScene( currentRenderList, scene, camera, viewport ) {

		const opaqueObjects = currentRenderList.opaque;
		const transmissiveObjects = currentRenderList.transmissive;
		const transparentObjects = currentRenderList.transparent;

		currentRenderState.setupLightsView( camera );

		if ( transmissiveObjects.length > 0 ) renderTransmissionPass( opaqueObjects, scene, camera );

		if ( viewport ) state.viewport( _currentViewport.copy( viewport ) );

		if ( opaqueObjects.length > 0 ) renderObjects( opaqueObjects, scene, camera );
		if ( transmissiveObjects.length > 0 ) renderObjects( transmissiveObjects, scene, camera );
		if ( transparentObjects.length > 0 ) renderObjects( transparentObjects, scene, camera );

	}

	function renderTransmissionPass( opaqueObjects, scene, camera ) {

		if ( _transmissionRenderTarget === null ) {

			const needsAntialias = _antialias === true && capabilities.isWebGL2 === true;
			const renderTargetType = needsAntialias ? WebGLMultisampleRenderTarget : WebGLRenderTarget;

			_transmissionRenderTarget = new renderTargetType( 1024, 1024, {
				generateMipmaps: true,
				type: utils.convert( HalfFloatType ) !== null ? HalfFloatType : UnsignedByteType,
				minFilter: LinearMipmapLinearFilter,
				magFilter: NearestFilter,
				wrapS: ClampToEdgeWrapping,
				wrapT: ClampToEdgeWrapping,
				useRenderToTexture: extensions.has( 'WEBGL_multisampled_render_to_texture' )
			} );

		}

		const currentRenderTarget = _this.getRenderTarget();
		_this.setRenderTarget( _transmissionRenderTarget );
		_this.clear();

		// Turn off the features which can affect the frag color for opaque objects pass.
		// Otherwise they are applied twice in opaque objects pass and transmission objects pass.
		const currentToneMapping = _this.toneMapping;
		_this.toneMapping = NoToneMapping;

		renderObjects( opaqueObjects, scene, camera );

		_this.toneMapping = currentToneMapping;

		textures.updateMultisampleRenderTarget( _transmissionRenderTarget );
		textures.updateRenderTargetMipmap( _transmissionRenderTarget );

		_this.setRenderTarget( currentRenderTarget );

	}

	function renderObjects( renderList, scene, camera ) {

		const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null;

		for ( let i = 0, l = renderList.length; i < l; i ++ ) {

			const renderItem = renderList[ i ];

			const object = renderItem.object;
			const geometry = renderItem.geometry;
			const material = overrideMaterial === null ? renderItem.material : overrideMaterial;
			const group = renderItem.group;

			if ( object.layers.test( camera.layers ) ) {

				renderObject( object, scene, camera, geometry, material, group );

			}

		}

	}

	function renderObject( object, scene, camera, geometry, material, group ) {

		object.onBeforeRender( _this, scene, camera, geometry, material, group );

		object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
		object.normalMatrix.getNormalMatrix( object.modelViewMatrix );

		material.onBeforeRender( _this, scene, camera, geometry, object, group );

		if ( material.transparent === true && material.side === DoubleSide ) {

			material.side = BackSide;
			material.needsUpdate = true;
			_this.renderBufferDirect( camera, scene, geometry, material, object, group );

			material.side = FrontSide;
			material.needsUpdate = true;
			_this.renderBufferDirect( camera, scene, geometry, material, object, group );

			material.side = DoubleSide;

		} else {

			_this.renderBufferDirect( camera, scene, geometry, material, object, group );

		}

		object.onAfterRender( _this, scene, camera, geometry, material, group );

	}

	function getProgram( material, scene, object ) {

		if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...

		const materialProperties = properties.get( material );

		const lights = currentRenderState.state.lights;
		const shadowsArray = currentRenderState.state.shadowsArray;

		const lightsStateVersion = lights.state.version;

		const parameters = programCache.getParameters( material, lights.state, shadowsArray, scene, object );
		const programCacheKey = programCache.getProgramCacheKey( parameters );

		let programs = materialProperties.programs;

		// always update environment and fog - changing these trigger an getProgram call, but it's possible that the program doesn't change

		materialProperties.environment = material.isMeshStandardMaterial ? scene.environment : null;
		materialProperties.fog = scene.fog;
		materialProperties.envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || materialProperties.environment );

		if ( programs === undefined ) {

			// new material

			material.addEventListener( 'dispose', onMaterialDispose );

			programs = new Map();
			materialProperties.programs = programs;

		}

		let program = programs.get( programCacheKey );

		if ( program !== undefined ) {

			// early out if program and light state is identical

			if ( materialProperties.currentProgram === program && materialProperties.lightsStateVersion === lightsStateVersion ) {

				updateCommonMaterialProperties( material, parameters );

				return program;

			}

		} else {

			parameters.uniforms = programCache.getUniforms( material );

			material.onBuild( object, parameters, _this );

			material.onBeforeCompile( parameters, _this );

			program = programCache.acquireProgram( parameters, programCacheKey );
			programs.set( programCacheKey, program );

			materialProperties.uniforms = parameters.uniforms;

		}

		const uniforms = materialProperties.uniforms;

		if ( ( ! material.isShaderMaterial && ! material.isRawShaderMaterial ) || material.clipping === true ) {

			uniforms.clippingPlanes = clipping.uniform;

		}

		updateCommonMaterialProperties( material, parameters );

		// store the light setup it was created for

		materialProperties.needsLights = materialNeedsLights( material );
		materialProperties.lightsStateVersion = lightsStateVersion;

		if ( materialProperties.needsLights ) {

			// wire up the material to this renderer's lighting state

			uniforms.ambientLightColor.value = lights.state.ambient;
			uniforms.lightProbe.value = lights.state.probe;
			uniforms.directionalLights.value = lights.state.directional;
			uniforms.directionalLightShadows.value = lights.state.directionalShadow;
			uniforms.spotLights.value = lights.state.spot;
			uniforms.spotLightShadows.value = lights.state.spotShadow;
			uniforms.rectAreaLights.value = lights.state.rectArea;
			uniforms.ltc_1.value = lights.state.rectAreaLTC1;
			uniforms.ltc_2.value = lights.state.rectAreaLTC2;
			uniforms.pointLights.value = lights.state.point;
			uniforms.pointLightShadows.value = lights.state.pointShadow;
			uniforms.hemisphereLights.value = lights.state.hemi;

			uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
			uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
			uniforms.spotShadowMap.value = lights.state.spotShadowMap;
			uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;
			uniforms.pointShadowMap.value = lights.state.pointShadowMap;
			uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;
			// TODO (abelnation): add area lights shadow info to uniforms

		}

		const progUniforms = program.getUniforms();
		const uniformsList = WebGLUniforms.seqWithValue( progUniforms.seq, uniforms );

		materialProperties.currentProgram = program;
		materialProperties.uniformsList = uniformsList;

		return program;

	}

	function updateCommonMaterialProperties( material, parameters ) {

		const materialProperties = properties.get( material );

		materialProperties.outputEncoding = parameters.outputEncoding;
		materialProperties.instancing = parameters.instancing;
		materialProperties.skinning = parameters.skinning;
		materialProperties.morphTargets = parameters.morphTargets;
		materialProperties.morphNormals = parameters.morphNormals;
		materialProperties.morphTargetsCount = parameters.morphTargetsCount;
		materialProperties.numClippingPlanes = parameters.numClippingPlanes;
		materialProperties.numIntersection = parameters.numClipIntersection;
		materialProperties.vertexAlphas = parameters.vertexAlphas;
		materialProperties.vertexTangents = parameters.vertexTangents;
		materialProperties.toneMapping = parameters.toneMapping;

	}

	function setProgram( camera, scene, geometry, material, object ) {

		if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ...

		textures.resetTextureUnits();

		const fog = scene.fog;
		const environment = material.isMeshStandardMaterial ? scene.environment : null;
		const encoding = ( _currentRenderTarget === null ) ? _this.outputEncoding : ( _currentRenderTarget.isXRRenderTarget === true ? _currentRenderTarget.texture.encoding : LinearEncoding );
		const envMap = ( material.isMeshStandardMaterial ? cubeuvmaps : cubemaps ).get( material.envMap || environment );
		const vertexAlphas = material.vertexColors === true && !! geometry.attributes.color && geometry.attributes.color.itemSize === 4;
		const vertexTangents = !! material.normalMap && !! geometry.attributes.tangent;
		const morphTargets = !! geometry.morphAttributes.position;
		const morphNormals = !! geometry.morphAttributes.normal;
		const morphTargetsCount = !! geometry.morphAttributes.position ? geometry.morphAttributes.position.length : 0;
		const toneMapping = material.toneMapped ? _this.toneMapping : NoToneMapping;

		const materialProperties = properties.get( material );
		const lights = currentRenderState.state.lights;

		if ( _clippingEnabled === true ) {

			if ( _localClippingEnabled === true || camera !== _currentCamera ) {

				const useCache =
					camera === _currentCamera &&
					material.id === _currentMaterialId;

				// we might want to call this function with some ClippingGroup
				// object instead of the material, once it becomes feasible
				// (#8465, #8379)
				clipping.setState( material, camera, useCache );

			}

		}

		//

		let needsProgramChange = false;

		if ( material.version === materialProperties.__version ) {

			if ( materialProperties.needsLights && ( materialProperties.lightsStateVersion !== lights.state.version ) ) {

				needsProgramChange = true;

			} else if ( materialProperties.outputEncoding !== encoding ) {

				needsProgramChange = true;

			} else if ( object.isInstancedMesh && materialProperties.instancing === false ) {

				needsProgramChange = true;

			} else if ( ! object.isInstancedMesh && materialProperties.instancing === true ) {

				needsProgramChange = true;

			} else if ( object.isSkinnedMesh && materialProperties.skinning === false ) {

				needsProgramChange = true;

			} else if ( ! object.isSkinnedMesh && materialProperties.skinning === true ) {

				needsProgramChange = true;

			} else if ( materialProperties.envMap !== envMap ) {

				needsProgramChange = true;

			} else if ( material.fog && materialProperties.fog !== fog ) {

				needsProgramChange = true;

			} else if ( materialProperties.numClippingPlanes !== undefined &&
				( materialProperties.numClippingPlanes !== clipping.numPlanes ||
				materialProperties.numIntersection !== clipping.numIntersection ) ) {

				needsProgramChange = true;

			} else if ( materialProperties.vertexAlphas !== vertexAlphas ) {

				needsProgramChange = true;

			} else if ( materialProperties.vertexTangents !== vertexTangents ) {

				needsProgramChange = true;

			} else if ( materialProperties.morphTargets !== morphTargets ) {

				needsProgramChange = true;

			} else if ( materialProperties.morphNormals !== morphNormals ) {

				needsProgramChange = true;

			} else if ( materialProperties.toneMapping !== toneMapping ) {

				needsProgramChange = true;

			} else if ( capabilities.isWebGL2 === true && materialProperties.morphTargetsCount !== morphTargetsCount ) {

				needsProgramChange = true;

			}

		} else {

			needsProgramChange = true;
			materialProperties.__version = material.version;

		}

		//

		let program = materialProperties.currentProgram;

		if ( needsProgramChange === true ) {

			program = getProgram( material, scene, object );

		}

		let refreshProgram = false;
		let refreshMaterial = false;
		let refreshLights = false;

		const p_uniforms = program.getUniforms(),
			m_uniforms = materialProperties.uniforms;

		if ( state.useProgram( program.program ) ) {

			refreshProgram = true;
			refreshMaterial = true;
			refreshLights = true;

		}

		if ( material.id !== _currentMaterialId ) {

			_currentMaterialId = material.id;

			refreshMaterial = true;

		}

		if ( refreshProgram || _currentCamera !== camera ) {

			p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );

			if ( capabilities.logarithmicDepthBuffer ) {

				p_uniforms.setValue( _gl, 'logDepthBufFC',
					2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );

			}

			if ( _currentCamera !== camera ) {

				_currentCamera = camera;

				// lighting uniforms depend on the camera so enforce an update
				// now, in case this material supports lights - or later, when
				// the next material that does gets activated:

				refreshMaterial = true;		// set to true on material change
				refreshLights = true;		// remains set until update done

			}

			// load material specific uniforms
			// (shader material also gets them for the sake of genericity)

			if ( material.isShaderMaterial ||
				material.isMeshPhongMaterial ||
				material.isMeshToonMaterial ||
				material.isMeshStandardMaterial ||
				material.envMap ) {

				const uCamPos = p_uniforms.map.cameraPosition;

				if ( uCamPos !== undefined ) {

					uCamPos.setValue( _gl,
						_vector3.setFromMatrixPosition( camera.matrixWorld ) );

				}

			}

			if ( material.isMeshPhongMaterial ||
				material.isMeshToonMaterial ||
				material.isMeshLambertMaterial ||
				material.isMeshBasicMaterial ||
				material.isMeshStandardMaterial ||
				material.isShaderMaterial ) {

				p_uniforms.setValue( _gl, 'isOrthographic', camera.isOrthographicCamera === true );

			}

			if ( material.isMeshPhongMaterial ||
				material.isMeshToonMaterial ||
				material.isMeshLambertMaterial ||
				material.isMeshBasicMaterial ||
				material.isMeshStandardMaterial ||
				material.isShaderMaterial ||
				material.isShadowMaterial ||
				object.isSkinnedMesh ) {

				p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );

			}

		}

		// skinning and morph target uniforms must be set even if material didn't change
		// auto-setting of texture unit for bone and morph texture must go before other textures
		// otherwise textures used for skinning and morphing can take over texture units reserved for other material textures

		if ( object.isSkinnedMesh ) {

			p_uniforms.setOptional( _gl, object, 'bindMatrix' );
			p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );

			const skeleton = object.skeleton;

			if ( skeleton ) {

				if ( capabilities.floatVertexTextures ) {

					if ( skeleton.boneTexture === null ) skeleton.computeBoneTexture();

					p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture, textures );
					p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );

				} else {

					p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );

				}

			}

		}

		if ( !! geometry && ( geometry.morphAttributes.position !== undefined || geometry.morphAttributes.normal !== undefined ) ) {

			morphtargets.update( object, geometry, material, program );

		}


		if ( refreshMaterial || materialProperties.receiveShadow !== object.receiveShadow ) {

			materialProperties.receiveShadow = object.receiveShadow;
			p_uniforms.setValue( _gl, 'receiveShadow', object.receiveShadow );

		}

		if ( refreshMaterial ) {

			p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );

			if ( materialProperties.needsLights ) {

				// the current material requires lighting info

				// note: all lighting uniforms are always set correctly
				// they simply reference the renderer's state for their
				// values
				//
				// use the current material's .needsUpdate flags to set
				// the GL state when required

				markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );

			}

			// refresh uniforms common to several materials

			if ( fog && material.fog ) {

				materials.refreshFogUniforms( m_uniforms, fog );

			}

			materials.refreshMaterialUniforms( m_uniforms, material, _pixelRatio, _height, _transmissionRenderTarget );

			WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures );

		}

		if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {

			WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures );
			material.uniformsNeedUpdate = false;

		}

		if ( material.isSpriteMaterial ) {

			p_uniforms.setValue( _gl, 'center', object.center );

		}

		// common matrices

		p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );
		p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );
		p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );

		return program;

	}

	// If uniforms are marked as clean, they don't need to be loaded to the GPU.

	function markUniformsLightsNeedsUpdate( uniforms, value ) {

		uniforms.ambientLightColor.needsUpdate = value;
		uniforms.lightProbe.needsUpdate = value;

		uniforms.directionalLights.needsUpdate = value;
		uniforms.directionalLightShadows.needsUpdate = value;
		uniforms.pointLights.needsUpdate = value;
		uniforms.pointLightShadows.needsUpdate = value;
		uniforms.spotLights.needsUpdate = value;
		uniforms.spotLightShadows.needsUpdate = value;
		uniforms.rectAreaLights.needsUpdate = value;
		uniforms.hemisphereLights.needsUpdate = value;

	}

	function materialNeedsLights( material ) {

		return material.isMeshLambertMaterial || material.isMeshToonMaterial || material.isMeshPhongMaterial ||
			material.isMeshStandardMaterial || material.isShadowMaterial ||
			( material.isShaderMaterial && material.lights === true );

	}

	this.getActiveCubeFace = function () {

		return _currentActiveCubeFace;

	};

	this.getActiveMipmapLevel = function () {

		return _currentActiveMipmapLevel;

	};

	this.getRenderTarget = function () {

		return _currentRenderTarget;

	};

	this.setRenderTargetTextures = function ( renderTarget, colorTexture, depthTexture ) {

		properties.get( renderTarget.texture ).__webglTexture = colorTexture;
		properties.get( renderTarget.depthTexture ).__webglTexture = depthTexture;

		const renderTargetProperties = properties.get( renderTarget );
		renderTargetProperties.__hasExternalTextures = true;

		if ( renderTargetProperties.__hasExternalTextures ) {

			renderTargetProperties.__autoAllocateDepthBuffer = depthTexture === undefined;

			if ( ! renderTargetProperties.__autoAllocateDepthBuffer ) {

				// The multisample_render_to_texture extension doesn't work properly if there
				// are midframe flushes and an external depth buffer. Disable use of the extension.
				if ( renderTarget.useRenderToTexture ) {

					console.warn( 'render-to-texture extension was disabled because an external texture was provided' );
					renderTarget.useRenderToTexture = false;
					renderTarget.useRenderbuffer = true;

				}

			}

		}

	};

	this.setRenderTargetFramebuffer = function ( renderTarget, defaultFramebuffer ) {

		const renderTargetProperties = properties.get( renderTarget );
		renderTargetProperties.__webglFramebuffer = defaultFramebuffer;
		renderTargetProperties.__useDefaultFramebuffer = defaultFramebuffer === undefined;

	};

	this.setRenderTarget = function ( renderTarget, activeCubeFace = 0, activeMipmapLevel = 0 ) {

		_currentRenderTarget = renderTarget;
		_currentActiveCubeFace = activeCubeFace;
		_currentActiveMipmapLevel = activeMipmapLevel;
		let useDefaultFramebuffer = true;

		if ( renderTarget ) {

			const renderTargetProperties = properties.get( renderTarget );

			if ( renderTargetProperties.__useDefaultFramebuffer !== undefined ) {

				// We need to make sure to rebind the framebuffer.
				state.bindFramebuffer( 36160, null );
				useDefaultFramebuffer = false;

			} else if ( renderTargetProperties.__webglFramebuffer === undefined ) {

				textures.setupRenderTarget( renderTarget );

			} else if ( renderTargetProperties.__hasExternalTextures ) {

				// Color and depth texture must be rebound in order for the swapchain to update.
				textures.rebindTextures( renderTarget, properties.get( renderTarget.texture ).__webglTexture, properties.get( renderTarget.depthTexture ).__webglTexture );

			}

		}

		let framebuffer = null;
		let isCube = false;
		let isRenderTarget3D = false;

		if ( renderTarget ) {

			const texture = renderTarget.texture;

			if ( texture.isDataTexture3D || texture.isDataTexture2DArray ) {

				isRenderTarget3D = true;

			}

			const __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;

			if ( renderTarget.isWebGLCubeRenderTarget ) {

				framebuffer = __webglFramebuffer[ activeCubeFace ];
				isCube = true;

			} else if ( renderTarget.useRenderbuffer ) {

				framebuffer = properties.get( renderTarget ).__webglMultisampledFramebuffer;

			} else {

				framebuffer = __webglFramebuffer;

			}

			_currentViewport.copy( renderTarget.viewport );
			_currentScissor.copy( renderTarget.scissor );
			_currentScissorTest = renderTarget.scissorTest;

		} else {

			_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor();
			_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor();
			_currentScissorTest = _scissorTest;

		}

		const framebufferBound = state.bindFramebuffer( 36160, framebuffer );

		if ( framebufferBound && capabilities.drawBuffers && useDefaultFramebuffer ) {

			state.drawBuffers( renderTarget, framebuffer );

		}

		state.viewport( _currentViewport );
		state.scissor( _currentScissor );
		state.setScissorTest( _currentScissorTest );

		if ( isCube ) {

			const textureProperties = properties.get( renderTarget.texture );
			_gl.framebufferTexture2D( 36160, 36064, 34069 + activeCubeFace, textureProperties.__webglTexture, activeMipmapLevel );

		} else if ( isRenderTarget3D ) {

			const textureProperties = properties.get( renderTarget.texture );
			const layer = activeCubeFace || 0;
			_gl.framebufferTextureLayer( 36160, 36064, textureProperties.__webglTexture, activeMipmapLevel || 0, layer );

		}

		_currentMaterialId = - 1; // reset current material to ensure correct uniform bindings

	};

	this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer, activeCubeFaceIndex ) {

		if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {

			console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
			return;

		}

		let framebuffer = properties.get( renderTarget ).__webglFramebuffer;

		if ( renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== undefined ) {

			framebuffer = framebuffer[ activeCubeFaceIndex ];

		}

		if ( framebuffer ) {

			state.bindFramebuffer( 36160, framebuffer );

			try {

				const texture = renderTarget.texture;
				const textureFormat = texture.format;
				const textureType = texture.type;

				if ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( 35739 ) ) {

					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
					return;

				}

				const halfFloatSupportedByExt = ( textureType === HalfFloatType ) && ( extensions.has( 'EXT_color_buffer_half_float' ) || ( capabilities.isWebGL2 && extensions.has( 'EXT_color_buffer_float' ) ) );

				if ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( 35738 ) && // Edge and Chrome Mac < 52 (#9513)
					! ( textureType === FloatType && ( capabilities.isWebGL2 || extensions.has( 'OES_texture_float' ) || extensions.has( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox
					! halfFloatSupportedByExt ) {

					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
					return;

				}

				if ( _gl.checkFramebufferStatus( 36160 ) === 36053 ) {

					// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)

					if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {

						_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );

					}

				} else {

					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );

				}

			} finally {

				// restore framebuffer of current render target if necessary

				const framebuffer = ( _currentRenderTarget !== null ) ? properties.get( _currentRenderTarget ).__webglFramebuffer : null;
				state.bindFramebuffer( 36160, framebuffer );

			}

		}

	};

	this.copyFramebufferToTexture = function ( position, texture, level = 0 ) {

		if ( texture.isFramebufferTexture !== true ) {

			console.error( 'THREE.WebGLRenderer: copyFramebufferToTexture() can only be used with FramebufferTexture.' );
			return;

		}

		const levelScale = Math.pow( 2, - level );
		const width = Math.floor( texture.image.width * levelScale );
		const height = Math.floor( texture.image.height * levelScale );

		textures.setTexture2D( texture, 0 );

		_gl.copyTexSubImage2D( 3553, level, 0, 0, position.x, position.y, width, height );

		state.unbindTexture();

	};

	this.copyTextureToTexture = function ( position, srcTexture, dstTexture, level = 0 ) {

		const width = srcTexture.image.width;
		const height = srcTexture.image.height;
		const glFormat = utils.convert( dstTexture.format );
		const glType = utils.convert( dstTexture.type );

		textures.setTexture2D( dstTexture, 0 );

		// As another texture upload may have changed pixelStorei
		// parameters, make sure they are correct for the dstTexture
		_gl.pixelStorei( 37440, dstTexture.flipY );
		_gl.pixelStorei( 37441, dstTexture.premultiplyAlpha );
		_gl.pixelStorei( 3317, dstTexture.unpackAlignment );

		if ( srcTexture.isDataTexture ) {

			_gl.texSubImage2D( 3553, level, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data );

		} else {

			if ( srcTexture.isCompressedTexture ) {

				_gl.compressedTexSubImage2D( 3553, level, position.x, position.y, srcTexture.mipmaps[ 0 ].width, srcTexture.mipmaps[ 0 ].height, glFormat, srcTexture.mipmaps[ 0 ].data );

			} else {

				_gl.texSubImage2D( 3553, level, position.x, position.y, glFormat, glType, srcTexture.image );

			}

		}

		// Generate mipmaps only when copying level 0
		if ( level === 0 && dstTexture.generateMipmaps ) _gl.generateMipmap( 3553 );

		state.unbindTexture();

	};

	this.copyTextureToTexture3D = function ( sourceBox, position, srcTexture, dstTexture, level = 0 ) {

		if ( _this.isWebGL1Renderer ) {

			console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: can only be used with WebGL2.' );
			return;

		}

		const width = sourceBox.max.x - sourceBox.min.x + 1;
		const height = sourceBox.max.y - sourceBox.min.y + 1;
		const depth = sourceBox.max.z - sourceBox.min.z + 1;
		const glFormat = utils.convert( dstTexture.format );
		const glType = utils.convert( dstTexture.type );
		let glTarget;

		if ( dstTexture.isDataTexture3D ) {

			textures.setTexture3D( dstTexture, 0 );
			glTarget = 32879;

		} else if ( dstTexture.isDataTexture2DArray ) {

			textures.setTexture2DArray( dstTexture, 0 );
			glTarget = 35866;

		} else {

			console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: only supports THREE.DataTexture3D and THREE.DataTexture2DArray.' );
			return;

		}

		_gl.pixelStorei( 37440, dstTexture.flipY );
		_gl.pixelStorei( 37441, dstTexture.premultiplyAlpha );
		_gl.pixelStorei( 3317, dstTexture.unpackAlignment );

		const unpackRowLen = _gl.getParameter( 3314 );
		const unpackImageHeight = _gl.getParameter( 32878 );
		const unpackSkipPixels = _gl.getParameter( 3316 );
		const unpackSkipRows = _gl.getParameter( 3315 );
		const unpackSkipImages = _gl.getParameter( 32877 );

		const image = srcTexture.isCompressedTexture ? srcTexture.mipmaps[ 0 ] : srcTexture.image;

		_gl.pixelStorei( 3314, image.width );
		_gl.pixelStorei( 32878, image.height );
		_gl.pixelStorei( 3316, sourceBox.min.x );
		_gl.pixelStorei( 3315, sourceBox.min.y );
		_gl.pixelStorei( 32877, sourceBox.min.z );

		if ( srcTexture.isDataTexture || srcTexture.isDataTexture3D ) {

			_gl.texSubImage3D( glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, glType, image.data );

		} else {

			if ( srcTexture.isCompressedTexture ) {

				console.warn( 'THREE.WebGLRenderer.copyTextureToTexture3D: untested support for compressed srcTexture.' );
				_gl.compressedTexSubImage3D( glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, image.data );

			} else {

				_gl.texSubImage3D( glTarget, level, position.x, position.y, position.z, width, height, depth, glFormat, glType, image );

			}

		}

		_gl.pixelStorei( 3314, unpackRowLen );
		_gl.pixelStorei( 32878, unpackImageHeight );
		_gl.pixelStorei( 3316, unpackSkipPixels );
		_gl.pixelStorei( 3315, unpackSkipRows );
		_gl.pixelStorei( 32877, unpackSkipImages );

		// Generate mipmaps only when copying level 0
		if ( level === 0 && dstTexture.generateMipmaps ) _gl.generateMipmap( glTarget );

		state.unbindTexture();

	};

	this.initTexture = function ( texture ) {

		textures.setTexture2D( texture, 0 );

		state.unbindTexture();

	};

	this.resetState = function () {

		_currentActiveCubeFace = 0;
		_currentActiveMipmapLevel = 0;
		_currentRenderTarget = null;

		state.reset();
		bindingStates.reset();

	};

	if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) {

		__THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'observe', { detail: this } ) );

	}

}

WebGLRenderer.prototype.isWebGLRenderer = true;

class WebGL1Renderer extends WebGLRenderer {}

WebGL1Renderer.prototype.isWebGL1Renderer = true;

class FogExp2 {

	constructor( color, density = 0.00025 ) {

		this.name = '';

		this.color = new Color( color );
		this.density = density;

	}

	clone() {

		return new FogExp2( this.color, this.density );

	}

	toJSON( /* meta */ ) {

		return {
			type: 'FogExp2',
			color: this.color.getHex(),
			density: this.density
		};

	}

}

FogExp2.prototype.isFogExp2 = true;

class Fog {

	constructor( color, near = 1, far = 1000 ) {

		this.name = '';

		this.color = new Color( color );

		this.near = near;
		this.far = far;

	}

	clone() {

		return new Fog( this.color, this.near, this.far );

	}

	toJSON( /* meta */ ) {

		return {
			type: 'Fog',
			color: this.color.getHex(),
			near: this.near,
			far: this.far
		};

	}

}

Fog.prototype.isFog = true;

class Scene extends Object3D {

	constructor() {

		super();

		this.type = 'Scene';

		this.background = null;
		this.environment = null;
		this.fog = null;

		this.overrideMaterial = null;

		this.autoUpdate = true; // checked by the renderer

		if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) {

			__THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'observe', { detail: this } ) );

		}

	}

	copy( source, recursive ) {

		super.copy( source, recursive );

		if ( source.background !== null ) this.background = source.background.clone();
		if ( source.environment !== null ) this.environment = source.environment.clone();
		if ( source.fog !== null ) this.fog = source.fog.clone();

		if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();

		this.autoUpdate = source.autoUpdate;
		this.matrixAutoUpdate = source.matrixAutoUpdate;

		return this;

	}

	toJSON( meta ) {

		const data = super.toJSON( meta );

		if ( this.fog !== null ) data.object.fog = this.fog.toJSON();

		return data;

	}

}

Scene.prototype.isScene = true;

class InterleavedBuffer {

	constructor( array, stride ) {

		this.array = array;
		this.stride = stride;
		this.count = array !== undefined ? array.length / stride : 0;

		this.usage = StaticDrawUsage;
		this.updateRange = { offset: 0, count: - 1 };

		this.version = 0;

		this.uuid = generateUUID();

	}

	onUploadCallback() {}

	set needsUpdate( value ) {

		if ( value === true ) this.version ++;

	}

	setUsage( value ) {

		this.usage = value;

		return this;

	}

	copy( source ) {

		this.array = new source.array.constructor( source.array );
		this.count = source.count;
		this.stride = source.stride;
		this.usage = source.usage;

		return this;

	}

	copyAt( index1, attribute, index2 ) {

		index1 *= this.stride;
		index2 *= attribute.stride;

		for ( let i = 0, l = this.stride; i < l; i ++ ) {

			this.array[ index1 + i ] = attribute.array[ index2 + i ];

		}

		return this;

	}

	set( value, offset = 0 ) {

		this.array.set( value, offset );

		return this;

	}

	clone( data ) {

		if ( data.arrayBuffers === undefined ) {

			data.arrayBuffers = {};

		}

		if ( this.array.buffer._uuid === undefined ) {

			this.array.buffer._uuid = generateUUID();

		}

		if ( data.arrayBuffers[ this.array.buffer._uuid ] === undefined ) {

			data.arrayBuffers[ this.array.buffer._uuid ] = this.array.slice( 0 ).buffer;

		}

		const array = new this.array.constructor( data.arrayBuffers[ this.array.buffer._uuid ] );

		const ib = new this.constructor( array, this.stride );
		ib.setUsage( this.usage );

		return ib;

	}

	onUpload( callback ) {

		this.onUploadCallback = callback;

		return this;

	}

	toJSON( data ) {

		if ( data.arrayBuffers === undefined ) {

			data.arrayBuffers = {};

		}

		// generate UUID for array buffer if necessary

		if ( this.array.buffer._uuid === undefined ) {

			this.array.buffer._uuid = generateUUID();

		}

		if ( data.arrayBuffers[ this.array.buffer._uuid ] === undefined ) {

			data.arrayBuffers[ this.array.buffer._uuid ] = Array.prototype.slice.call( new Uint32Array( this.array.buffer ) );

		}

		//

		return {
			uuid: this.uuid,
			buffer: this.array.buffer._uuid,
			type: this.array.constructor.name,
			stride: this.stride
		};

	}

}

InterleavedBuffer.prototype.isInterleavedBuffer = true;

const _vector$6 = /*@__PURE__*/ new Vector3();

class InterleavedBufferAttribute {

	constructor( interleavedBuffer, itemSize, offset, normalized = false ) {

		this.name = '';

		this.data = interleavedBuffer;
		this.itemSize = itemSize;
		this.offset = offset;

		this.normalized = normalized === true;

	}

	get count() {

		return this.data.count;

	}

	get array() {

		return this.data.array;

	}

	set needsUpdate( value ) {

		this.data.needsUpdate = value;

	}

	applyMatrix4( m ) {

		for ( let i = 0, l = this.data.count; i < l; i ++ ) {

			_vector$6.x = this.getX( i );
			_vector$6.y = this.getY( i );
			_vector$6.z = this.getZ( i );

			_vector$6.applyMatrix4( m );

			this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z );

		}

		return this;

	}

	applyNormalMatrix( m ) {

		for ( let i = 0, l = this.count; i < l; i ++ ) {

			_vector$6.x = this.getX( i );
			_vector$6.y = this.getY( i );
			_vector$6.z = this.getZ( i );

			_vector$6.applyNormalMatrix( m );

			this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z );

		}

		return this;

	}

	transformDirection( m ) {

		for ( let i = 0, l = this.count; i < l; i ++ ) {

			_vector$6.x = this.getX( i );
			_vector$6.y = this.getY( i );
			_vector$6.z = this.getZ( i );

			_vector$6.transformDirection( m );

			this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z );

		}

		return this;

	}

	setX( index, x ) {

		this.data.array[ index * this.data.stride + this.offset ] = x;

		return this;

	}

	setY( index, y ) {

		this.data.array[ index * this.data.stride + this.offset + 1 ] = y;

		return this;

	}

	setZ( index, z ) {

		this.data.array[ index * this.data.stride + this.offset + 2 ] = z;

		return this;

	}

	setW( index, w ) {

		this.data.array[ index * this.data.stride + this.offset + 3 ] = w;

		return this;

	}

	getX( index ) {

		return this.data.array[ index * this.data.stride + this.offset ];

	}

	getY( index ) {

		return this.data.array[ index * this.data.stride + this.offset + 1 ];

	}

	getZ( index ) {

		return this.data.array[ index * this.data.stride + this.offset + 2 ];

	}

	getW( index ) {

		return this.data.array[ index * this.data.stride + this.offset + 3 ];

	}

	setXY( index, x, y ) {

		index = index * this.data.stride + this.offset;

		this.data.array[ index + 0 ] = x;
		this.data.array[ index + 1 ] = y;

		return this;

	}

	setXYZ( index, x, y, z ) {

		index = index * this.data.stride + this.offset;

		this.data.array[ index + 0 ] = x;
		this.data.array[ index + 1 ] = y;
		this.data.array[ index + 2 ] = z;

		return this;

	}

	setXYZW( index, x, y, z, w ) {

		index = index * this.data.stride + this.offset;

		this.data.array[ index + 0 ] = x;
		this.data.array[ index + 1 ] = y;
		this.data.array[ index + 2 ] = z;
		this.data.array[ index + 3 ] = w;

		return this;

	}

	clone( data ) {

		if ( data === undefined ) {

			console.log( 'THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.' );

			const array = [];

			for ( let i = 0; i < this.count; i ++ ) {

				const index = i * this.data.stride + this.offset;

				for ( let j = 0; j < this.itemSize; j ++ ) {

					array.push( this.data.array[ index + j ] );

				}

			}

			return new BufferAttribute( new this.array.constructor( array ), this.itemSize, this.normalized );

		} else {

			if ( data.interleavedBuffers === undefined ) {

				data.interleavedBuffers = {};

			}

			if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) {

				data.interleavedBuffers[ this.data.uuid ] = this.data.clone( data );

			}

			return new InterleavedBufferAttribute( data.interleavedBuffers[ this.data.uuid ], this.itemSize, this.offset, this.normalized );

		}

	}

	toJSON( data ) {

		if ( data === undefined ) {

			console.log( 'THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.' );

			const array = [];

			for ( let i = 0; i < this.count; i ++ ) {

				const index = i * this.data.stride + this.offset;

				for ( let j = 0; j < this.itemSize; j ++ ) {

					array.push( this.data.array[ index + j ] );

				}

			}

			// deinterleave data and save it as an ordinary buffer attribute for now

			return {
				itemSize: this.itemSize,
				type: this.array.constructor.name,
				array: array,
				normalized: this.normalized
			};

		} else {

			// save as true interlaved attribtue

			if ( data.interleavedBuffers === undefined ) {

				data.interleavedBuffers = {};

			}

			if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) {

				data.interleavedBuffers[ this.data.uuid ] = this.data.toJSON( data );

			}

			return {
				isInterleavedBufferAttribute: true,
				itemSize: this.itemSize,
				data: this.data.uuid,
				offset: this.offset,
				normalized: this.normalized
			};

		}

	}

}

InterleavedBufferAttribute.prototype.isInterleavedBufferAttribute = true;

/**
 * parameters = {
 *  color: <hex>,
 *  map: new THREE.Texture( <Image> ),
 *  alphaMap: new THREE.Texture( <Image> ),
 *  rotation: <float>,
 *  sizeAttenuation: <bool>
 * }
 */

class SpriteMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'SpriteMaterial';

		this.color = new Color( 0xffffff );

		this.map = null;

		this.alphaMap = null;

		this.rotation = 0;

		this.sizeAttenuation = true;

		this.transparent = true;

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.color.copy( source.color );

		this.map = source.map;

		this.alphaMap = source.alphaMap;

		this.rotation = source.rotation;

		this.sizeAttenuation = source.sizeAttenuation;

		return this;

	}

}

SpriteMaterial.prototype.isSpriteMaterial = true;

let _geometry;

const _intersectPoint = /*@__PURE__*/ new Vector3();
const _worldScale = /*@__PURE__*/ new Vector3();
const _mvPosition = /*@__PURE__*/ new Vector3();

const _alignedPosition = /*@__PURE__*/ new Vector2();
const _rotatedPosition = /*@__PURE__*/ new Vector2();
const _viewWorldMatrix = /*@__PURE__*/ new Matrix4();

const _vA = /*@__PURE__*/ new Vector3();
const _vB = /*@__PURE__*/ new Vector3();
const _vC = /*@__PURE__*/ new Vector3();

const _uvA = /*@__PURE__*/ new Vector2();
const _uvB = /*@__PURE__*/ new Vector2();
const _uvC = /*@__PURE__*/ new Vector2();

class Sprite extends Object3D {

	constructor( material ) {

		super();

		this.type = 'Sprite';

		if ( _geometry === undefined ) {

			_geometry = new BufferGeometry();

			const float32Array = new Float32Array( [
				- 0.5, - 0.5, 0, 0, 0,
				0.5, - 0.5, 0, 1, 0,
				0.5, 0.5, 0, 1, 1,
				- 0.5, 0.5, 0, 0, 1
			] );

			const interleavedBuffer = new InterleavedBuffer( float32Array, 5 );

			_geometry.setIndex( [ 0, 1, 2,	0, 2, 3 ] );
			_geometry.setAttribute( 'position', new InterleavedBufferAttribute( interleavedBuffer, 3, 0, false ) );
			_geometry.setAttribute( 'uv', new InterleavedBufferAttribute( interleavedBuffer, 2, 3, false ) );

		}

		this.geometry = _geometry;
		this.material = ( material !== undefined ) ? material : new SpriteMaterial();

		this.center = new Vector2( 0.5, 0.5 );

	}

	raycast( raycaster, intersects ) {

		if ( raycaster.camera === null ) {

			console.error( 'THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.' );

		}

		_worldScale.setFromMatrixScale( this.matrixWorld );

		_viewWorldMatrix.copy( raycaster.camera.matrixWorld );
		this.modelViewMatrix.multiplyMatrices( raycaster.camera.matrixWorldInverse, this.matrixWorld );

		_mvPosition.setFromMatrixPosition( this.modelViewMatrix );

		if ( raycaster.camera.isPerspectiveCamera && this.material.sizeAttenuation === false ) {

			_worldScale.multiplyScalar( - _mvPosition.z );

		}

		const rotation = this.material.rotation;
		let sin, cos;

		if ( rotation !== 0 ) {

			cos = Math.cos( rotation );
			sin = Math.sin( rotation );

		}

		const center = this.center;

		transformVertex( _vA.set( - 0.5, - 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos );
		transformVertex( _vB.set( 0.5, - 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos );
		transformVertex( _vC.set( 0.5, 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos );

		_uvA.set( 0, 0 );
		_uvB.set( 1, 0 );
		_uvC.set( 1, 1 );

		// check first triangle
		let intersect = raycaster.ray.intersectTriangle( _vA, _vB, _vC, false, _intersectPoint );

		if ( intersect === null ) {

			// check second triangle
			transformVertex( _vB.set( - 0.5, 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos );
			_uvB.set( 0, 1 );

			intersect = raycaster.ray.intersectTriangle( _vA, _vC, _vB, false, _intersectPoint );
			if ( intersect === null ) {

				return;

			}

		}

		const distance = raycaster.ray.origin.distanceTo( _intersectPoint );

		if ( distance < raycaster.near || distance > raycaster.far ) return;

		intersects.push( {

			distance: distance,
			point: _intersectPoint.clone(),
			uv: Triangle.getUV( _intersectPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2() ),
			face: null,
			object: this

		} );

	}

	copy( source ) {

		super.copy( source );

		if ( source.center !== undefined ) this.center.copy( source.center );

		this.material = source.material;

		return this;

	}

}

Sprite.prototype.isSprite = true;

function transformVertex( vertexPosition, mvPosition, center, scale, sin, cos ) {

	// compute position in camera space
	_alignedPosition.subVectors( vertexPosition, center ).addScalar( 0.5 ).multiply( scale );

	// to check if rotation is not zero
	if ( sin !== undefined ) {

		_rotatedPosition.x = ( cos * _alignedPosition.x ) - ( sin * _alignedPosition.y );
		_rotatedPosition.y = ( sin * _alignedPosition.x ) + ( cos * _alignedPosition.y );

	} else {

		_rotatedPosition.copy( _alignedPosition );

	}


	vertexPosition.copy( mvPosition );
	vertexPosition.x += _rotatedPosition.x;
	vertexPosition.y += _rotatedPosition.y;

	// transform to world space
	vertexPosition.applyMatrix4( _viewWorldMatrix );

}

const _v1$2 = /*@__PURE__*/ new Vector3();
const _v2$1 = /*@__PURE__*/ new Vector3();

class LOD extends Object3D {

	constructor() {

		super();

		this._currentLevel = 0;

		this.type = 'LOD';

		Object.defineProperties( this, {
			levels: {
				enumerable: true,
				value: []
			},
			isLOD: {
				value: true,
			}
		} );

		this.autoUpdate = true;

	}

	copy( source ) {

		super.copy( source, false );

		const levels = source.levels;

		for ( let i = 0, l = levels.length; i < l; i ++ ) {

			const level = levels[ i ];

			this.addLevel( level.object.clone(), level.distance );

		}

		this.autoUpdate = source.autoUpdate;

		return this;

	}

	addLevel( object, distance = 0 ) {

		distance = Math.abs( distance );

		const levels = this.levels;

		let l;

		for ( l = 0; l < levels.length; l ++ ) {

			if ( distance < levels[ l ].distance ) {

				break;

			}

		}

		levels.splice( l, 0, { distance: distance, object: object } );

		this.add( object );

		return this;

	}

	getCurrentLevel() {

		return this._currentLevel;

	}

	getObjectForDistance( distance ) {

		const levels = this.levels;

		if ( levels.length > 0 ) {

			let i, l;

			for ( i = 1, l = levels.length; i < l; i ++ ) {

				if ( distance < levels[ i ].distance ) {

					break;

				}

			}

			return levels[ i - 1 ].object;

		}

		return null;

	}

	raycast( raycaster, intersects ) {

		const levels = this.levels;

		if ( levels.length > 0 ) {

			_v1$2.setFromMatrixPosition( this.matrixWorld );

			const distance = raycaster.ray.origin.distanceTo( _v1$2 );

			this.getObjectForDistance( distance ).raycast( raycaster, intersects );

		}

	}

	update( camera ) {

		const levels = this.levels;

		if ( levels.length > 1 ) {

			_v1$2.setFromMatrixPosition( camera.matrixWorld );
			_v2$1.setFromMatrixPosition( this.matrixWorld );

			const distance = _v1$2.distanceTo( _v2$1 ) / camera.zoom;

			levels[ 0 ].object.visible = true;

			let i, l;

			for ( i = 1, l = levels.length; i < l; i ++ ) {

				if ( distance >= levels[ i ].distance ) {

					levels[ i - 1 ].object.visible = false;
					levels[ i ].object.visible = true;

				} else {

					break;

				}

			}

			this._currentLevel = i - 1;

			for ( ; i < l; i ++ ) {

				levels[ i ].object.visible = false;

			}

		}

	}

	toJSON( meta ) {

		const data = super.toJSON( meta );

		if ( this.autoUpdate === false ) data.object.autoUpdate = false;

		data.object.levels = [];

		const levels = this.levels;

		for ( let i = 0, l = levels.length; i < l; i ++ ) {

			const level = levels[ i ];

			data.object.levels.push( {
				object: level.object.uuid,
				distance: level.distance
			} );

		}

		return data;

	}

}

const _basePosition = /*@__PURE__*/ new Vector3();

const _skinIndex = /*@__PURE__*/ new Vector4();
const _skinWeight = /*@__PURE__*/ new Vector4();

const _vector$5 = /*@__PURE__*/ new Vector3();
const _matrix = /*@__PURE__*/ new Matrix4();

class SkinnedMesh extends Mesh {

	constructor( geometry, material ) {

		super( geometry, material );

		this.type = 'SkinnedMesh';

		this.bindMode = 'attached';
		this.bindMatrix = new Matrix4();
		this.bindMatrixInverse = new Matrix4();

	}

	copy( source ) {

		super.copy( source );

		this.bindMode = source.bindMode;
		this.bindMatrix.copy( source.bindMatrix );
		this.bindMatrixInverse.copy( source.bindMatrixInverse );

		this.skeleton = source.skeleton;

		return this;

	}

	bind( skeleton, bindMatrix ) {

		this.skeleton = skeleton;

		if ( bindMatrix === undefined ) {

			this.updateMatrixWorld( true );

			this.skeleton.calculateInverses();

			bindMatrix = this.matrixWorld;

		}

		this.bindMatrix.copy( bindMatrix );
		this.bindMatrixInverse.copy( bindMatrix ).invert();

	}

	pose() {

		this.skeleton.pose();

	}

	normalizeSkinWeights() {

		const vector = new Vector4();

		const skinWeight = this.geometry.attributes.skinWeight;

		for ( let i = 0, l = skinWeight.count; i < l; i ++ ) {

			vector.x = skinWeight.getX( i );
			vector.y = skinWeight.getY( i );
			vector.z = skinWeight.getZ( i );
			vector.w = skinWeight.getW( i );

			const scale = 1.0 / vector.manhattanLength();

			if ( scale !== Infinity ) {

				vector.multiplyScalar( scale );

			} else {

				vector.set( 1, 0, 0, 0 ); // do something reasonable

			}

			skinWeight.setXYZW( i, vector.x, vector.y, vector.z, vector.w );

		}

	}

	updateMatrixWorld( force ) {

		super.updateMatrixWorld( force );

		if ( this.bindMode === 'attached' ) {

			this.bindMatrixInverse.copy( this.matrixWorld ).invert();

		} else if ( this.bindMode === 'detached' ) {

			this.bindMatrixInverse.copy( this.bindMatrix ).invert();

		} else {

			console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );

		}

	}

	boneTransform( index, target ) {

		const skeleton = this.skeleton;
		const geometry = this.geometry;

		_skinIndex.fromBufferAttribute( geometry.attributes.skinIndex, index );
		_skinWeight.fromBufferAttribute( geometry.attributes.skinWeight, index );

		_basePosition.copy( target ).applyMatrix4( this.bindMatrix );

		target.set( 0, 0, 0 );

		for ( let i = 0; i < 4; i ++ ) {

			const weight = _skinWeight.getComponent( i );

			if ( weight !== 0 ) {

				const boneIndex = _skinIndex.getComponent( i );

				_matrix.multiplyMatrices( skeleton.bones[ boneIndex ].matrixWorld, skeleton.boneInverses[ boneIndex ] );

				target.addScaledVector( _vector$5.copy( _basePosition ).applyMatrix4( _matrix ), weight );

			}

		}

		return target.applyMatrix4( this.bindMatrixInverse );

	}

}

SkinnedMesh.prototype.isSkinnedMesh = true;

class Bone extends Object3D {

	constructor() {

		super();

		this.type = 'Bone';

	}

}

Bone.prototype.isBone = true;

class DataTexture extends Texture {

	constructor( data = null, width = 1, height = 1, format, type, mapping, wrapS, wrapT, magFilter = NearestFilter, minFilter = NearestFilter, anisotropy, encoding ) {

		super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

		this.image = { data: data, width: width, height: height };

		this.magFilter = magFilter;
		this.minFilter = minFilter;

		this.generateMipmaps = false;
		this.flipY = false;
		this.unpackAlignment = 1;

	}

}

DataTexture.prototype.isDataTexture = true;

const _offsetMatrix = /*@__PURE__*/ new Matrix4();
const _identityMatrix = /*@__PURE__*/ new Matrix4();

class Skeleton {

	constructor( bones = [], boneInverses = [] ) {

		this.uuid = generateUUID();

		this.bones = bones.slice( 0 );
		this.boneInverses = boneInverses;
		this.boneMatrices = null;

		this.boneTexture = null;
		this.boneTextureSize = 0;

		this.frame = - 1;

		this.init();

	}

	init() {

		const bones = this.bones;
		const boneInverses = this.boneInverses;

		this.boneMatrices = new Float32Array( bones.length * 16 );

		// calculate inverse bone matrices if necessary

		if ( boneInverses.length === 0 ) {

			this.calculateInverses();

		} else {

			// handle special case

			if ( bones.length !== boneInverses.length ) {

				console.warn( 'THREE.Skeleton: Number of inverse bone matrices does not match amount of bones.' );

				this.boneInverses = [];

				for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

					this.boneInverses.push( new Matrix4() );

				}

			}

		}

	}

	calculateInverses() {

		this.boneInverses.length = 0;

		for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

			const inverse = new Matrix4();

			if ( this.bones[ i ] ) {

				inverse.copy( this.bones[ i ].matrixWorld ).invert();

			}

			this.boneInverses.push( inverse );

		}

	}

	pose() {

		// recover the bind-time world matrices

		for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

			const bone = this.bones[ i ];

			if ( bone ) {

				bone.matrixWorld.copy( this.boneInverses[ i ] ).invert();

			}

		}

		// compute the local matrices, positions, rotations and scales

		for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

			const bone = this.bones[ i ];

			if ( bone ) {

				if ( bone.parent && bone.parent.isBone ) {

					bone.matrix.copy( bone.parent.matrixWorld ).invert();
					bone.matrix.multiply( bone.matrixWorld );

				} else {

					bone.matrix.copy( bone.matrixWorld );

				}

				bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );

			}

		}

	}

	update() {

		const bones = this.bones;
		const boneInverses = this.boneInverses;
		const boneMatrices = this.boneMatrices;
		const boneTexture = this.boneTexture;

		// flatten bone matrices to array

		for ( let i = 0, il = bones.length; i < il; i ++ ) {

			// compute the offset between the current and the original transform

			const matrix = bones[ i ] ? bones[ i ].matrixWorld : _identityMatrix;

			_offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );
			_offsetMatrix.toArray( boneMatrices, i * 16 );

		}

		if ( boneTexture !== null ) {

			boneTexture.needsUpdate = true;

		}

	}

	clone() {

		return new Skeleton( this.bones, this.boneInverses );

	}

	computeBoneTexture() {

		// layout (1 matrix = 4 pixels)
		//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
		//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
		//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
		//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
		//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)

		let size = Math.sqrt( this.bones.length * 4 ); // 4 pixels needed for 1 matrix
		size = ceilPowerOfTwo( size );
		size = Math.max( size, 4 );

		const boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel
		boneMatrices.set( this.boneMatrices ); // copy current values

		const boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );
		boneTexture.needsUpdate = true;

		this.boneMatrices = boneMatrices;
		this.boneTexture = boneTexture;
		this.boneTextureSize = size;

		return this;

	}

	getBoneByName( name ) {

		for ( let i = 0, il = this.bones.length; i < il; i ++ ) {

			const bone = this.bones[ i ];

			if ( bone.name === name ) {

				return bone;

			}

		}

		return undefined;

	}

	dispose( ) {

		if ( this.boneTexture !== null ) {

			this.boneTexture.dispose();

			this.boneTexture = null;

		}

	}

	fromJSON( json, bones ) {

		this.uuid = json.uuid;

		for ( let i = 0, l = json.bones.length; i < l; i ++ ) {

			const uuid = json.bones[ i ];
			let bone = bones[ uuid ];

			if ( bone === undefined ) {

				console.warn( 'THREE.Skeleton: No bone found with UUID:', uuid );
				bone = new Bone();

			}

			this.bones.push( bone );
			this.boneInverses.push( new Matrix4().fromArray( json.boneInverses[ i ] ) );

		}

		this.init();

		return this;

	}

	toJSON() {

		const data = {
			metadata: {
				version: 4.5,
				type: 'Skeleton',
				generator: 'Skeleton.toJSON'
			},
			bones: [],
			boneInverses: []
		};

		data.uuid = this.uuid;

		const bones = this.bones;
		const boneInverses = this.boneInverses;

		for ( let i = 0, l = bones.length; i < l; i ++ ) {

			const bone = bones[ i ];
			data.bones.push( bone.uuid );

			const boneInverse = boneInverses[ i ];
			data.boneInverses.push( boneInverse.toArray() );

		}

		return data;

	}

}

class InstancedBufferAttribute extends BufferAttribute {

	constructor( array, itemSize, normalized, meshPerAttribute = 1 ) {

		if ( typeof normalized === 'number' ) {

			meshPerAttribute = normalized;

			normalized = false;

			console.error( 'THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.' );

		}

		super( array, itemSize, normalized );

		this.meshPerAttribute = meshPerAttribute;

	}

	copy( source ) {

		super.copy( source );

		this.meshPerAttribute = source.meshPerAttribute;

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.meshPerAttribute = this.meshPerAttribute;

		data.isInstancedBufferAttribute = true;

		return data;

	}

}

InstancedBufferAttribute.prototype.isInstancedBufferAttribute = true;

const _instanceLocalMatrix = /*@__PURE__*/ new Matrix4();
const _instanceWorldMatrix = /*@__PURE__*/ new Matrix4();

const _instanceIntersects = [];

const _mesh = /*@__PURE__*/ new Mesh();

class InstancedMesh extends Mesh {

	constructor( geometry, material, count ) {

		super( geometry, material );

		this.instanceMatrix = new InstancedBufferAttribute( new Float32Array( count * 16 ), 16 );
		this.instanceColor = null;

		this.count = count;

		this.frustumCulled = false;

	}

	copy( source ) {

		super.copy( source );

		this.instanceMatrix.copy( source.instanceMatrix );

		if ( source.instanceColor !== null ) this.instanceColor = source.instanceColor.clone();

		this.count = source.count;

		return this;

	}

	getColorAt( index, color ) {

		color.fromArray( this.instanceColor.array, index * 3 );

	}

	getMatrixAt( index, matrix ) {

		matrix.fromArray( this.instanceMatrix.array, index * 16 );

	}

	raycast( raycaster, intersects ) {

		const matrixWorld = this.matrixWorld;
		const raycastTimes = this.count;

		_mesh.geometry = this.geometry;
		_mesh.material = this.material;

		if ( _mesh.material === undefined ) return;

		for ( let instanceId = 0; instanceId < raycastTimes; instanceId ++ ) {

			// calculate the world matrix for each instance

			this.getMatrixAt( instanceId, _instanceLocalMatrix );

			_instanceWorldMatrix.multiplyMatrices( matrixWorld, _instanceLocalMatrix );

			// the mesh represents this single instance

			_mesh.matrixWorld = _instanceWorldMatrix;

			_mesh.raycast( raycaster, _instanceIntersects );

			// process the result of raycast

			for ( let i = 0, l = _instanceIntersects.length; i < l; i ++ ) {

				const intersect = _instanceIntersects[ i ];
				intersect.instanceId = instanceId;
				intersect.object = this;
				intersects.push( intersect );

			}

			_instanceIntersects.length = 0;

		}

	}

	setColorAt( index, color ) {

		if ( this.instanceColor === null ) {

			this.instanceColor = new InstancedBufferAttribute( new Float32Array( this.instanceMatrix.count * 3 ), 3 );

		}

		color.toArray( this.instanceColor.array, index * 3 );

	}

	setMatrixAt( index, matrix ) {

		matrix.toArray( this.instanceMatrix.array, index * 16 );

	}

	updateMorphTargets() {

	}

	dispose() {

		this.dispatchEvent( { type: 'dispose' } );

	}

}

InstancedMesh.prototype.isInstancedMesh = true;

/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  linewidth: <float>,
 *  linecap: "round",
 *  linejoin: "round"
 * }
 */

class LineBasicMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'LineBasicMaterial';

		this.color = new Color( 0xffffff );

		this.linewidth = 1;
		this.linecap = 'round';
		this.linejoin = 'round';

		this.setValues( parameters );

	}


	copy( source ) {

		super.copy( source );

		this.color.copy( source.color );

		this.linewidth = source.linewidth;
		this.linecap = source.linecap;
		this.linejoin = source.linejoin;

		return this;

	}

}

LineBasicMaterial.prototype.isLineBasicMaterial = true;

const _start$1 = /*@__PURE__*/ new Vector3();
const _end$1 = /*@__PURE__*/ new Vector3();
const _inverseMatrix$1 = /*@__PURE__*/ new Matrix4();
const _ray$1 = /*@__PURE__*/ new Ray();
const _sphere$1 = /*@__PURE__*/ new Sphere();

class Line extends Object3D {

	constructor( geometry = new BufferGeometry(), material = new LineBasicMaterial() ) {

		super();

		this.type = 'Line';

		this.geometry = geometry;
		this.material = material;

		this.updateMorphTargets();

	}

	copy( source ) {

		super.copy( source );

		this.material = source.material;
		this.geometry = source.geometry;

		return this;

	}

	computeLineDistances() {

		const geometry = this.geometry;

		if ( geometry.isBufferGeometry ) {

			// we assume non-indexed geometry

			if ( geometry.index === null ) {

				const positionAttribute = geometry.attributes.position;
				const lineDistances = [ 0 ];

				for ( let i = 1, l = positionAttribute.count; i < l; i ++ ) {

					_start$1.fromBufferAttribute( positionAttribute, i - 1 );
					_end$1.fromBufferAttribute( positionAttribute, i );

					lineDistances[ i ] = lineDistances[ i - 1 ];
					lineDistances[ i ] += _start$1.distanceTo( _end$1 );

				}

				geometry.setAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );

			} else {

				console.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );

			}

		} else if ( geometry.isGeometry ) {

			console.error( 'THREE.Line.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );

		}

		return this;

	}

	raycast( raycaster, intersects ) {

		const geometry = this.geometry;
		const matrixWorld = this.matrixWorld;
		const threshold = raycaster.params.Line.threshold;
		const drawRange = geometry.drawRange;

		// Checking boundingSphere distance to ray

		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

		_sphere$1.copy( geometry.boundingSphere );
		_sphere$1.applyMatrix4( matrixWorld );
		_sphere$1.radius += threshold;

		if ( raycaster.ray.intersectsSphere( _sphere$1 ) === false ) return;

		//

		_inverseMatrix$1.copy( matrixWorld ).invert();
		_ray$1.copy( raycaster.ray ).applyMatrix4( _inverseMatrix$1 );

		const localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
		const localThresholdSq = localThreshold * localThreshold;

		const vStart = new Vector3();
		const vEnd = new Vector3();
		const interSegment = new Vector3();
		const interRay = new Vector3();
		const step = this.isLineSegments ? 2 : 1;

		if ( geometry.isBufferGeometry ) {

			const index = geometry.index;
			const attributes = geometry.attributes;
			const positionAttribute = attributes.position;

			if ( index !== null ) {

				const start = Math.max( 0, drawRange.start );
				const end = Math.min( index.count, ( drawRange.start + drawRange.count ) );

				for ( let i = start, l = end - 1; i < l; i += step ) {

					const a = index.getX( i );
					const b = index.getX( i + 1 );

					vStart.fromBufferAttribute( positionAttribute, a );
					vEnd.fromBufferAttribute( positionAttribute, b );

					const distSq = _ray$1.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

					if ( distSq > localThresholdSq ) continue;

					interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

					const distance = raycaster.ray.origin.distanceTo( interRay );

					if ( distance < raycaster.near || distance > raycaster.far ) continue;

					intersects.push( {

						distance: distance,
						// What do we want? intersection point on the ray or on the segment??
						// point: raycaster.ray.at( distance ),
						point: interSegment.clone().applyMatrix4( this.matrixWorld ),
						index: i,
						face: null,
						faceIndex: null,
						object: this

					} );

				}

			} else {

				const start = Math.max( 0, drawRange.start );
				const end = Math.min( positionAttribute.count, ( drawRange.start + drawRange.count ) );

				for ( let i = start, l = end - 1; i < l; i += step ) {

					vStart.fromBufferAttribute( positionAttribute, i );
					vEnd.fromBufferAttribute( positionAttribute, i + 1 );

					const distSq = _ray$1.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

					if ( distSq > localThresholdSq ) continue;

					interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

					const distance = raycaster.ray.origin.distanceTo( interRay );

					if ( distance < raycaster.near || distance > raycaster.far ) continue;

					intersects.push( {

						distance: distance,
						// What do we want? intersection point on the ray or on the segment??
						// point: raycaster.ray.at( distance ),
						point: interSegment.clone().applyMatrix4( this.matrixWorld ),
						index: i,
						face: null,
						faceIndex: null,
						object: this

					} );

				}

			}

		} else if ( geometry.isGeometry ) {

			console.error( 'THREE.Line.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );

		}

	}

	updateMorphTargets() {

		const geometry = this.geometry;

		if ( geometry.isBufferGeometry ) {

			const morphAttributes = geometry.morphAttributes;
			const keys = Object.keys( morphAttributes );

			if ( keys.length > 0 ) {

				const morphAttribute = morphAttributes[ keys[ 0 ] ];

				if ( morphAttribute !== undefined ) {

					this.morphTargetInfluences = [];
					this.morphTargetDictionary = {};

					for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) {

						const name = morphAttribute[ m ].name || String( m );

						this.morphTargetInfluences.push( 0 );
						this.morphTargetDictionary[ name ] = m;

					}

				}

			}

		} else {

			const morphTargets = geometry.morphTargets;

			if ( morphTargets !== undefined && morphTargets.length > 0 ) {

				console.error( 'THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.' );

			}

		}

	}

}

Line.prototype.isLine = true;

const _start = /*@__PURE__*/ new Vector3();
const _end = /*@__PURE__*/ new Vector3();

class LineSegments extends Line {

	constructor( geometry, material ) {

		super( geometry, material );

		this.type = 'LineSegments';

	}

	computeLineDistances() {

		const geometry = this.geometry;

		if ( geometry.isBufferGeometry ) {

			// we assume non-indexed geometry

			if ( geometry.index === null ) {

				const positionAttribute = geometry.attributes.position;
				const lineDistances = [];

				for ( let i = 0, l = positionAttribute.count; i < l; i += 2 ) {

					_start.fromBufferAttribute( positionAttribute, i );
					_end.fromBufferAttribute( positionAttribute, i + 1 );

					lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
					lineDistances[ i + 1 ] = lineDistances[ i ] + _start.distanceTo( _end );

				}

				geometry.setAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );

			} else {

				console.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );

			}

		} else if ( geometry.isGeometry ) {

			console.error( 'THREE.LineSegments.computeLineDistances() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );

		}

		return this;

	}

}

LineSegments.prototype.isLineSegments = true;

class LineLoop extends Line {

	constructor( geometry, material ) {

		super( geometry, material );

		this.type = 'LineLoop';

	}

}

LineLoop.prototype.isLineLoop = true;

/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *  map: new THREE.Texture( <Image> ),
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  size: <float>,
 *  sizeAttenuation: <bool>
 *
 * }
 */

class PointsMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'PointsMaterial';

		this.color = new Color( 0xffffff );

		this.map = null;

		this.alphaMap = null;

		this.size = 1;
		this.sizeAttenuation = true;

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.color.copy( source.color );

		this.map = source.map;

		this.alphaMap = source.alphaMap;

		this.size = source.size;
		this.sizeAttenuation = source.sizeAttenuation;

		return this;

	}

}

PointsMaterial.prototype.isPointsMaterial = true;

const _inverseMatrix = /*@__PURE__*/ new Matrix4();
const _ray = /*@__PURE__*/ new Ray();
const _sphere = /*@__PURE__*/ new Sphere();
const _position$2 = /*@__PURE__*/ new Vector3();

class Points extends Object3D {

	constructor( geometry = new BufferGeometry(), material = new PointsMaterial() ) {

		super();

		this.type = 'Points';

		this.geometry = geometry;
		this.material = material;

		this.updateMorphTargets();

	}

	copy( source ) {

		super.copy( source );

		this.material = source.material;
		this.geometry = source.geometry;

		return this;

	}

	raycast( raycaster, intersects ) {

		const geometry = this.geometry;
		const matrixWorld = this.matrixWorld;
		const threshold = raycaster.params.Points.threshold;
		const drawRange = geometry.drawRange;

		// Checking boundingSphere distance to ray

		if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

		_sphere.copy( geometry.boundingSphere );
		_sphere.applyMatrix4( matrixWorld );
		_sphere.radius += threshold;

		if ( raycaster.ray.intersectsSphere( _sphere ) === false ) return;

		//

		_inverseMatrix.copy( matrixWorld ).invert();
		_ray.copy( raycaster.ray ).applyMatrix4( _inverseMatrix );

		const localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
		const localThresholdSq = localThreshold * localThreshold;

		if ( geometry.isBufferGeometry ) {

			const index = geometry.index;
			const attributes = geometry.attributes;
			const positionAttribute = attributes.position;

			if ( index !== null ) {

				const start = Math.max( 0, drawRange.start );
				const end = Math.min( index.count, ( drawRange.start + drawRange.count ) );

				for ( let i = start, il = end; i < il; i ++ ) {

					const a = index.getX( i );

					_position$2.fromBufferAttribute( positionAttribute, a );

					testPoint( _position$2, a, localThresholdSq, matrixWorld, raycaster, intersects, this );

				}

			} else {

				const start = Math.max( 0, drawRange.start );
				const end = Math.min( positionAttribute.count, ( drawRange.start + drawRange.count ) );

				for ( let i = start, l = end; i < l; i ++ ) {

					_position$2.fromBufferAttribute( positionAttribute, i );

					testPoint( _position$2, i, localThresholdSq, matrixWorld, raycaster, intersects, this );

				}

			}

		} else {

			console.error( 'THREE.Points.raycast() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );

		}

	}

	updateMorphTargets() {

		const geometry = this.geometry;

		if ( geometry.isBufferGeometry ) {

			const morphAttributes = geometry.morphAttributes;
			const keys = Object.keys( morphAttributes );

			if ( keys.length > 0 ) {

				const morphAttribute = morphAttributes[ keys[ 0 ] ];

				if ( morphAttribute !== undefined ) {

					this.morphTargetInfluences = [];
					this.morphTargetDictionary = {};

					for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) {

						const name = morphAttribute[ m ].name || String( m );

						this.morphTargetInfluences.push( 0 );
						this.morphTargetDictionary[ name ] = m;

					}

				}

			}

		} else {

			const morphTargets = geometry.morphTargets;

			if ( morphTargets !== undefined && morphTargets.length > 0 ) {

				console.error( 'THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.' );

			}

		}

	}

}

Points.prototype.isPoints = true;

function testPoint( point, index, localThresholdSq, matrixWorld, raycaster, intersects, object ) {

	const rayPointDistanceSq = _ray.distanceSqToPoint( point );

	if ( rayPointDistanceSq < localThresholdSq ) {

		const intersectPoint = new Vector3();

		_ray.closestPointToPoint( point, intersectPoint );
		intersectPoint.applyMatrix4( matrixWorld );

		const distance = raycaster.ray.origin.distanceTo( intersectPoint );

		if ( distance < raycaster.near || distance > raycaster.far ) return;

		intersects.push( {

			distance: distance,
			distanceToRay: Math.sqrt( rayPointDistanceSq ),
			point: intersectPoint,
			index: index,
			face: null,
			object: object

		} );

	}

}

class VideoTexture extends Texture {

	constructor( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

		super( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

		this.minFilter = minFilter !== undefined ? minFilter : LinearFilter;
		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;

		this.generateMipmaps = false;

		const scope = this;

		function updateVideo() {

			scope.needsUpdate = true;
			video.requestVideoFrameCallback( updateVideo );

		}

		if ( 'requestVideoFrameCallback' in video ) {

			video.requestVideoFrameCallback( updateVideo );

		}

	}

	clone() {

		return new this.constructor( this.image ).copy( this );

	}

	update() {

		const video = this.image;
		const hasVideoFrameCallback = 'requestVideoFrameCallback' in video;

		if ( hasVideoFrameCallback === false && video.readyState >= video.HAVE_CURRENT_DATA ) {

			this.needsUpdate = true;

		}

	}

}

VideoTexture.prototype.isVideoTexture = true;

class FramebufferTexture extends Texture {

	constructor( width, height, format ) {

		super( { width, height } );

		this.format = format;

		this.magFilter = NearestFilter;
		this.minFilter = NearestFilter;

		this.generateMipmaps = false;

		this.needsUpdate = true;

	}

}

FramebufferTexture.prototype.isFramebufferTexture = true;

class CompressedTexture extends Texture {

	constructor( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {

		super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

		this.image = { width: width, height: height };
		this.mipmaps = mipmaps;

		// no flipping for cube textures
		// (also flipping doesn't work for compressed textures )

		this.flipY = false;

		// can't generate mipmaps for compressed textures
		// mips must be embedded in DDS files

		this.generateMipmaps = false;

	}

}

CompressedTexture.prototype.isCompressedTexture = true;

class CanvasTexture extends Texture {

	constructor( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

		super( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

		this.needsUpdate = true;

	}

}

CanvasTexture.prototype.isCanvasTexture = true;

class CircleGeometry extends BufferGeometry {

	constructor( radius = 1, segments = 8, thetaStart = 0, thetaLength = Math.PI * 2 ) {

		super();

		this.type = 'CircleGeometry';

		this.parameters = {
			radius: radius,
			segments: segments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		segments = Math.max( 3, segments );

		// buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		// helper variables

		const vertex = new Vector3();
		const uv = new Vector2();

		// center point

		vertices.push( 0, 0, 0 );
		normals.push( 0, 0, 1 );
		uvs.push( 0.5, 0.5 );

		for ( let s = 0, i = 3; s <= segments; s ++, i += 3 ) {

			const segment = thetaStart + s / segments * thetaLength;

			// vertex

			vertex.x = radius * Math.cos( segment );
			vertex.y = radius * Math.sin( segment );

			vertices.push( vertex.x, vertex.y, vertex.z );

			// normal

			normals.push( 0, 0, 1 );

			// uvs

			uv.x = ( vertices[ i ] / radius + 1 ) / 2;
			uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;

			uvs.push( uv.x, uv.y );

		}

		// indices

		for ( let i = 1; i <= segments; i ++ ) {

			indices.push( i, i + 1, 0 );

		}

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	static fromJSON( data ) {

		return new CircleGeometry( data.radius, data.segments, data.thetaStart, data.thetaLength );

	}

}

class CylinderGeometry extends BufferGeometry {

	constructor( radiusTop = 1, radiusBottom = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) {

		super();
		this.type = 'CylinderGeometry';

		this.parameters = {
			radiusTop: radiusTop,
			radiusBottom: radiusBottom,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		const scope = this;

		radialSegments = Math.floor( radialSegments );
		heightSegments = Math.floor( heightSegments );

		// buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		// helper variables

		let index = 0;
		const indexArray = [];
		const halfHeight = height / 2;
		let groupStart = 0;

		// generate geometry

		generateTorso();

		if ( openEnded === false ) {

			if ( radiusTop > 0 ) generateCap( true );
			if ( radiusBottom > 0 ) generateCap( false );

		}

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		function generateTorso() {

			const normal = new Vector3();
			const vertex = new Vector3();

			let groupCount = 0;

			// this will be used to calculate the normal
			const slope = ( radiusBottom - radiusTop ) / height;

			// generate vertices, normals and uvs

			for ( let y = 0; y <= heightSegments; y ++ ) {

				const indexRow = [];

				const v = y / heightSegments;

				// calculate the radius of the current row

				const radius = v * ( radiusBottom - radiusTop ) + radiusTop;

				for ( let x = 0; x <= radialSegments; x ++ ) {

					const u = x / radialSegments;

					const theta = u * thetaLength + thetaStart;

					const sinTheta = Math.sin( theta );
					const cosTheta = Math.cos( theta );

					// vertex

					vertex.x = radius * sinTheta;
					vertex.y = - v * height + halfHeight;
					vertex.z = radius * cosTheta;
					vertices.push( vertex.x, vertex.y, vertex.z );

					// normal

					normal.set( sinTheta, slope, cosTheta ).normalize();
					normals.push( normal.x, normal.y, normal.z );

					// uv

					uvs.push( u, 1 - v );

					// save index of vertex in respective row

					indexRow.push( index ++ );

				}

				// now save vertices of the row in our index array

				indexArray.push( indexRow );

			}

			// generate indices

			for ( let x = 0; x < radialSegments; x ++ ) {

				for ( let y = 0; y < heightSegments; y ++ ) {

					// we use the index array to access the correct indices

					const a = indexArray[ y ][ x ];
					const b = indexArray[ y + 1 ][ x ];
					const c = indexArray[ y + 1 ][ x + 1 ];
					const d = indexArray[ y ][ x + 1 ];

					// faces

					indices.push( a, b, d );
					indices.push( b, c, d );

					// update group counter

					groupCount += 6;

				}

			}

			// add a group to the geometry. this will ensure multi material support

			scope.addGroup( groupStart, groupCount, 0 );

			// calculate new start value for groups

			groupStart += groupCount;

		}

		function generateCap( top ) {

			// save the index of the first center vertex
			const centerIndexStart = index;

			const uv = new Vector2();
			const vertex = new Vector3();

			let groupCount = 0;

			const radius = ( top === true ) ? radiusTop : radiusBottom;
			const sign = ( top === true ) ? 1 : - 1;

			// first we generate the center vertex data of the cap.
			// because the geometry needs one set of uvs per face,
			// we must generate a center vertex per face/segment

			for ( let x = 1; x <= radialSegments; x ++ ) {

				// vertex

				vertices.push( 0, halfHeight * sign, 0 );

				// normal

				normals.push( 0, sign, 0 );

				// uv

				uvs.push( 0.5, 0.5 );

				// increase index

				index ++;

			}

			// save the index of the last center vertex
			const centerIndexEnd = index;

			// now we generate the surrounding vertices, normals and uvs

			for ( let x = 0; x <= radialSegments; x ++ ) {

				const u = x / radialSegments;
				const theta = u * thetaLength + thetaStart;

				const cosTheta = Math.cos( theta );
				const sinTheta = Math.sin( theta );

				// vertex

				vertex.x = radius * sinTheta;
				vertex.y = halfHeight * sign;
				vertex.z = radius * cosTheta;
				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				normals.push( 0, sign, 0 );

				// uv

				uv.x = ( cosTheta * 0.5 ) + 0.5;
				uv.y = ( sinTheta * 0.5 * sign ) + 0.5;
				uvs.push( uv.x, uv.y );

				// increase index

				index ++;

			}

			// generate indices

			for ( let x = 0; x < radialSegments; x ++ ) {

				const c = centerIndexStart + x;
				const i = centerIndexEnd + x;

				if ( top === true ) {

					// face top

					indices.push( i, i + 1, c );

				} else {

					// face bottom

					indices.push( i + 1, i, c );

				}

				groupCount += 3;

			}

			// add a group to the geometry. this will ensure multi material support

			scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );

			// calculate new start value for groups

			groupStart += groupCount;

		}

	}

	static fromJSON( data ) {

		return new CylinderGeometry( data.radiusTop, data.radiusBottom, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength );

	}

}

class ConeGeometry extends CylinderGeometry {

	constructor( radius = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) {

		super( 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );

		this.type = 'ConeGeometry';

		this.parameters = {
			radius: radius,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

	}

	static fromJSON( data ) {

		return new ConeGeometry( data.radius, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength );

	}

}

class PolyhedronGeometry extends BufferGeometry {

	constructor( vertices = [], indices = [], radius = 1, detail = 0 ) {

		super();

		this.type = 'PolyhedronGeometry';

		this.parameters = {
			vertices: vertices,
			indices: indices,
			radius: radius,
			detail: detail
		};

		// default buffer data

		const vertexBuffer = [];
		const uvBuffer = [];

		// the subdivision creates the vertex buffer data

		subdivide( detail );

		// all vertices should lie on a conceptual sphere with a given radius

		applyRadius( radius );

		// finally, create the uv data

		generateUVs();

		// build non-indexed geometry

		this.setAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );

		if ( detail === 0 ) {

			this.computeVertexNormals(); // flat normals

		} else {

			this.normalizeNormals(); // smooth normals

		}

		// helper functions

		function subdivide( detail ) {

			const a = new Vector3();
			const b = new Vector3();
			const c = new Vector3();

			// iterate over all faces and apply a subdivison with the given detail value

			for ( let i = 0; i < indices.length; i += 3 ) {

				// get the vertices of the face

				getVertexByIndex( indices[ i + 0 ], a );
				getVertexByIndex( indices[ i + 1 ], b );
				getVertexByIndex( indices[ i + 2 ], c );

				// perform subdivision

				subdivideFace( a, b, c, detail );

			}

		}

		function subdivideFace( a, b, c, detail ) {

			const cols = detail + 1;

			// we use this multidimensional array as a data structure for creating the subdivision

			const v = [];

			// construct all of the vertices for this subdivision

			for ( let i = 0; i <= cols; i ++ ) {

				v[ i ] = [];

				const aj = a.clone().lerp( c, i / cols );
				const bj = b.clone().lerp( c, i / cols );

				const rows = cols - i;

				for ( let j = 0; j <= rows; j ++ ) {

					if ( j === 0 && i === cols ) {

						v[ i ][ j ] = aj;

					} else {

						v[ i ][ j ] = aj.clone().lerp( bj, j / rows );

					}

				}

			}

			// construct all of the faces

			for ( let i = 0; i < cols; i ++ ) {

				for ( let j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {

					const k = Math.floor( j / 2 );

					if ( j % 2 === 0 ) {

						pushVertex( v[ i ][ k + 1 ] );
						pushVertex( v[ i + 1 ][ k ] );
						pushVertex( v[ i ][ k ] );

					} else {

						pushVertex( v[ i ][ k + 1 ] );
						pushVertex( v[ i + 1 ][ k + 1 ] );
						pushVertex( v[ i + 1 ][ k ] );

					}

				}

			}

		}

		function applyRadius( radius ) {

			const vertex = new Vector3();

			// iterate over the entire buffer and apply the radius to each vertex

			for ( let i = 0; i < vertexBuffer.length; i += 3 ) {

				vertex.x = vertexBuffer[ i + 0 ];
				vertex.y = vertexBuffer[ i + 1 ];
				vertex.z = vertexBuffer[ i + 2 ];

				vertex.normalize().multiplyScalar( radius );

				vertexBuffer[ i + 0 ] = vertex.x;
				vertexBuffer[ i + 1 ] = vertex.y;
				vertexBuffer[ i + 2 ] = vertex.z;

			}

		}

		function generateUVs() {

			const vertex = new Vector3();

			for ( let i = 0; i < vertexBuffer.length; i += 3 ) {

				vertex.x = vertexBuffer[ i + 0 ];
				vertex.y = vertexBuffer[ i + 1 ];
				vertex.z = vertexBuffer[ i + 2 ];

				const u = azimuth( vertex ) / 2 / Math.PI + 0.5;
				const v = inclination( vertex ) / Math.PI + 0.5;
				uvBuffer.push( u, 1 - v );

			}

			correctUVs();

			correctSeam();

		}

		function correctSeam() {

			// handle case when face straddles the seam, see #3269

			for ( let i = 0; i < uvBuffer.length; i += 6 ) {

				// uv data of a single face

				const x0 = uvBuffer[ i + 0 ];
				const x1 = uvBuffer[ i + 2 ];
				const x2 = uvBuffer[ i + 4 ];

				const max = Math.max( x0, x1, x2 );
				const min = Math.min( x0, x1, x2 );

				// 0.9 is somewhat arbitrary

				if ( max > 0.9 && min < 0.1 ) {

					if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;
					if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;
					if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;

				}

			}

		}

		function pushVertex( vertex ) {

			vertexBuffer.push( vertex.x, vertex.y, vertex.z );

		}

		function getVertexByIndex( index, vertex ) {

			const stride = index * 3;

			vertex.x = vertices[ stride + 0 ];
			vertex.y = vertices[ stride + 1 ];
			vertex.z = vertices[ stride + 2 ];

		}

		function correctUVs() {

			const a = new Vector3();
			const b = new Vector3();
			const c = new Vector3();

			const centroid = new Vector3();

			const uvA = new Vector2();
			const uvB = new Vector2();
			const uvC = new Vector2();

			for ( let i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {

				a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );
				b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );
				c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );

				uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );
				uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );
				uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );

				centroid.copy( a ).add( b ).add( c ).divideScalar( 3 );

				const azi = azimuth( centroid );

				correctUV( uvA, j + 0, a, azi );
				correctUV( uvB, j + 2, b, azi );
				correctUV( uvC, j + 4, c, azi );

			}

		}

		function correctUV( uv, stride, vector, azimuth ) {

			if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {

				uvBuffer[ stride ] = uv.x - 1;

			}

			if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {

				uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;

			}

		}

		// Angle around the Y axis, counter-clockwise when looking from above.

		function azimuth( vector ) {

			return Math.atan2( vector.z, - vector.x );

		}


		// Angle above the XZ plane.

		function inclination( vector ) {

			return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );

		}

	}

	static fromJSON( data ) {

		return new PolyhedronGeometry( data.vertices, data.indices, data.radius, data.details );

	}

}

class DodecahedronGeometry extends PolyhedronGeometry {

	constructor( radius = 1, detail = 0 ) {

		const t = ( 1 + Math.sqrt( 5 ) ) / 2;
		const r = 1 / t;

		const vertices = [

			// (±1, ±1, ±1)
			- 1, - 1, - 1,	- 1, - 1, 1,
			- 1, 1, - 1, - 1, 1, 1,
			1, - 1, - 1, 1, - 1, 1,
			1, 1, - 1, 1, 1, 1,

			// (0, ±1/φ, ±φ)
			0, - r, - t, 0, - r, t,
			0, r, - t, 0, r, t,

			// (±1/φ, ±φ, 0)
			- r, - t, 0, - r, t, 0,
			r, - t, 0, r, t, 0,

			// (±φ, 0, ±1/φ)
			- t, 0, - r, t, 0, - r,
			- t, 0, r, t, 0, r
		];

		const indices = [
			3, 11, 7, 	3, 7, 15, 	3, 15, 13,
			7, 19, 17, 	7, 17, 6, 	7, 6, 15,
			17, 4, 8, 	17, 8, 10, 	17, 10, 6,
			8, 0, 16, 	8, 16, 2, 	8, 2, 10,
			0, 12, 1, 	0, 1, 18, 	0, 18, 16,
			6, 10, 2, 	6, 2, 13, 	6, 13, 15,
			2, 16, 18, 	2, 18, 3, 	2, 3, 13,
			18, 1, 9, 	18, 9, 11, 	18, 11, 3,
			4, 14, 12, 	4, 12, 0, 	4, 0, 8,
			11, 9, 5, 	11, 5, 19, 	11, 19, 7,
			19, 5, 14, 	19, 14, 4, 	19, 4, 17,
			1, 12, 14, 	1, 14, 5, 	1, 5, 9
		];

		super( vertices, indices, radius, detail );

		this.type = 'DodecahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	static fromJSON( data ) {

		return new DodecahedronGeometry( data.radius, data.detail );

	}

}

const _v0 = new Vector3();
const _v1$1 = new Vector3();
const _normal = new Vector3();
const _triangle = new Triangle();

class EdgesGeometry extends BufferGeometry {

	constructor( geometry = null, thresholdAngle = 1 ) {

		super();
		this.type = 'EdgesGeometry';

		this.parameters = {
			geometry: geometry,
			thresholdAngle: thresholdAngle
		};

		if ( geometry !== null ) {

			const precisionPoints = 4;
			const precision = Math.pow( 10, precisionPoints );
			const thresholdDot = Math.cos( DEG2RAD * thresholdAngle );

			const indexAttr = geometry.getIndex();
			const positionAttr = geometry.getAttribute( 'position' );
			const indexCount = indexAttr ? indexAttr.count : positionAttr.count;

			const indexArr = [ 0, 0, 0 ];
			const vertKeys = [ 'a', 'b', 'c' ];
			const hashes = new Array( 3 );

			const edgeData = {};
			const vertices = [];
			for ( let i = 0; i < indexCount; i += 3 ) {

				if ( indexAttr ) {

					indexArr[ 0 ] = indexAttr.getX( i );
					indexArr[ 1 ] = indexAttr.getX( i + 1 );
					indexArr[ 2 ] = indexAttr.getX( i + 2 );

				} else {

					indexArr[ 0 ] = i;
					indexArr[ 1 ] = i + 1;
					indexArr[ 2 ] = i + 2;

				}

				const { a, b, c } = _triangle;
				a.fromBufferAttribute( positionAttr, indexArr[ 0 ] );
				b.fromBufferAttribute( positionAttr, indexArr[ 1 ] );
				c.fromBufferAttribute( positionAttr, indexArr[ 2 ] );
				_triangle.getNormal( _normal );

				// create hashes for the edge from the vertices
				hashes[ 0 ] = `${ Math.round( a.x * precision ) },${ Math.round( a.y * precision ) },${ Math.round( a.z * precision ) }`;
				hashes[ 1 ] = `${ Math.round( b.x * precision ) },${ Math.round( b.y * precision ) },${ Math.round( b.z * precision ) }`;
				hashes[ 2 ] = `${ Math.round( c.x * precision ) },${ Math.round( c.y * precision ) },${ Math.round( c.z * precision ) }`;

				// skip degenerate triangles
				if ( hashes[ 0 ] === hashes[ 1 ] || hashes[ 1 ] === hashes[ 2 ] || hashes[ 2 ] === hashes[ 0 ] ) {

					continue;

				}

				// iterate over every edge
				for ( let j = 0; j < 3; j ++ ) {

					// get the first and next vertex making up the edge
					const jNext = ( j + 1 ) % 3;
					const vecHash0 = hashes[ j ];
					const vecHash1 = hashes[ jNext ];
					const v0 = _triangle[ vertKeys[ j ] ];
					const v1 = _triangle[ vertKeys[ jNext ] ];

					const hash = `${ vecHash0 }_${ vecHash1 }`;
					const reverseHash = `${ vecHash1 }_${ vecHash0 }`;

					if ( reverseHash in edgeData && edgeData[ reverseHash ] ) {

						// if we found a sibling edge add it into the vertex array if
						// it meets the angle threshold and delete the edge from the map.
						if ( _normal.dot( edgeData[ reverseHash ].normal ) <= thresholdDot ) {

							vertices.push( v0.x, v0.y, v0.z );
							vertices.push( v1.x, v1.y, v1.z );

						}

						edgeData[ reverseHash ] = null;

					} else if ( ! ( hash in edgeData ) ) {

						// if we've already got an edge here then skip adding a new one
						edgeData[ hash ] = {

							index0: indexArr[ j ],
							index1: indexArr[ jNext ],
							normal: _normal.clone(),

						};

					}

				}

			}

			// iterate over all remaining, unmatched edges and add them to the vertex array
			for ( const key in edgeData ) {

				if ( edgeData[ key ] ) {

					const { index0, index1 } = edgeData[ key ];
					_v0.fromBufferAttribute( positionAttr, index0 );
					_v1$1.fromBufferAttribute( positionAttr, index1 );

					vertices.push( _v0.x, _v0.y, _v0.z );
					vertices.push( _v1$1.x, _v1$1.y, _v1$1.z );

				}

			}

			this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );

		}

	}

}

/**
 * Extensible curve object.
 *
 * Some common of curve methods:
 * .getPoint( t, optionalTarget ), .getTangent( t, optionalTarget )
 * .getPointAt( u, optionalTarget ), .getTangentAt( u, optionalTarget )
 * .getPoints(), .getSpacedPoints()
 * .getLength()
 * .updateArcLengths()
 *
 * This following curves inherit from THREE.Curve:
 *
 * -- 2D curves --
 * THREE.ArcCurve
 * THREE.CubicBezierCurve
 * THREE.EllipseCurve
 * THREE.LineCurve
 * THREE.QuadraticBezierCurve
 * THREE.SplineCurve
 *
 * -- 3D curves --
 * THREE.CatmullRomCurve3
 * THREE.CubicBezierCurve3
 * THREE.LineCurve3
 * THREE.QuadraticBezierCurve3
 *
 * A series of curves can be represented as a THREE.CurvePath.
 *
 **/

class Curve {

	constructor() {

		this.type = 'Curve';

		this.arcLengthDivisions = 200;

	}

	// Virtual base class method to overwrite and implement in subclasses
	//	- t [0 .. 1]

	getPoint( /* t, optionalTarget */ ) {

		console.warn( 'THREE.Curve: .getPoint() not implemented.' );
		return null;

	}

	// Get point at relative position in curve according to arc length
	// - u [0 .. 1]

	getPointAt( u, optionalTarget ) {

		const t = this.getUtoTmapping( u );
		return this.getPoint( t, optionalTarget );

	}

	// Get sequence of points using getPoint( t )

	getPoints( divisions = 5 ) {

		const points = [];

		for ( let d = 0; d <= divisions; d ++ ) {

			points.push( this.getPoint( d / divisions ) );

		}

		return points;

	}

	// Get sequence of points using getPointAt( u )

	getSpacedPoints( divisions = 5 ) {

		const points = [];

		for ( let d = 0; d <= divisions; d ++ ) {

			points.push( this.getPointAt( d / divisions ) );

		}

		return points;

	}

	// Get total curve arc length

	getLength() {

		const lengths = this.getLengths();
		return lengths[ lengths.length - 1 ];

	}

	// Get list of cumulative segment lengths

	getLengths( divisions = this.arcLengthDivisions ) {

		if ( this.cacheArcLengths &&
			( this.cacheArcLengths.length === divisions + 1 ) &&
			! this.needsUpdate ) {

			return this.cacheArcLengths;

		}

		this.needsUpdate = false;

		const cache = [];
		let current, last = this.getPoint( 0 );
		let sum = 0;

		cache.push( 0 );

		for ( let p = 1; p <= divisions; p ++ ) {

			current = this.getPoint( p / divisions );
			sum += current.distanceTo( last );
			cache.push( sum );
			last = current;

		}

		this.cacheArcLengths = cache;

		return cache; // { sums: cache, sum: sum }; Sum is in the last element.

	}

	updateArcLengths() {

		this.needsUpdate = true;
		this.getLengths();

	}

	// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant

	getUtoTmapping( u, distance ) {

		const arcLengths = this.getLengths();

		let i = 0;
		const il = arcLengths.length;

		let targetArcLength; // The targeted u distance value to get

		if ( distance ) {

			targetArcLength = distance;

		} else {

			targetArcLength = u * arcLengths[ il - 1 ];

		}

		// binary search for the index with largest value smaller than target u distance

		let low = 0, high = il - 1, comparison;

		while ( low <= high ) {

			i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats

			comparison = arcLengths[ i ] - targetArcLength;

			if ( comparison < 0 ) {

				low = i + 1;

			} else if ( comparison > 0 ) {

				high = i - 1;

			} else {

				high = i;
				break;

				// DONE

			}

		}

		i = high;

		if ( arcLengths[ i ] === targetArcLength ) {

			return i / ( il - 1 );

		}

		// we could get finer grain at lengths, or use simple interpolation between two points

		const lengthBefore = arcLengths[ i ];
		const lengthAfter = arcLengths[ i + 1 ];

		const segmentLength = lengthAfter - lengthBefore;

		// determine where we are between the 'before' and 'after' points

		const segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;

		// add that fractional amount to t

		const t = ( i + segmentFraction ) / ( il - 1 );

		return t;

	}

	// Returns a unit vector tangent at t
	// In case any sub curve does not implement its tangent derivation,
	// 2 points a small delta apart will be used to find its gradient
	// which seems to give a reasonable approximation

	getTangent( t, optionalTarget ) {

		const delta = 0.0001;
		let t1 = t - delta;
		let t2 = t + delta;

		// Capping in case of danger

		if ( t1 < 0 ) t1 = 0;
		if ( t2 > 1 ) t2 = 1;

		const pt1 = this.getPoint( t1 );
		const pt2 = this.getPoint( t2 );

		const tangent = optionalTarget || ( ( pt1.isVector2 ) ? new Vector2() : new Vector3() );

		tangent.copy( pt2 ).sub( pt1 ).normalize();

		return tangent;

	}

	getTangentAt( u, optionalTarget ) {

		const t = this.getUtoTmapping( u );
		return this.getTangent( t, optionalTarget );

	}

	computeFrenetFrames( segments, closed ) {

		// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf

		const normal = new Vector3();

		const tangents = [];
		const normals = [];
		const binormals = [];

		const vec = new Vector3();
		const mat = new Matrix4();

		// compute the tangent vectors for each segment on the curve

		for ( let i = 0; i <= segments; i ++ ) {

			const u = i / segments;

			tangents[ i ] = this.getTangentAt( u, new Vector3() );

		}

		// select an initial normal vector perpendicular to the first tangent vector,
		// and in the direction of the minimum tangent xyz component

		normals[ 0 ] = new Vector3();
		binormals[ 0 ] = new Vector3();
		let min = Number.MAX_VALUE;
		const tx = Math.abs( tangents[ 0 ].x );
		const ty = Math.abs( tangents[ 0 ].y );
		const tz = Math.abs( tangents[ 0 ].z );

		if ( tx <= min ) {

			min = tx;
			normal.set( 1, 0, 0 );

		}

		if ( ty <= min ) {

			min = ty;
			normal.set( 0, 1, 0 );

		}

		if ( tz <= min ) {

			normal.set( 0, 0, 1 );

		}

		vec.crossVectors( tangents[ 0 ], normal ).normalize();

		normals[ 0 ].crossVectors( tangents[ 0 ], vec );
		binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );


		// compute the slowly-varying normal and binormal vectors for each segment on the curve

		for ( let i = 1; i <= segments; i ++ ) {

			normals[ i ] = normals[ i - 1 ].clone();

			binormals[ i ] = binormals[ i - 1 ].clone();

			vec.crossVectors( tangents[ i - 1 ], tangents[ i ] );

			if ( vec.length() > Number.EPSILON ) {

				vec.normalize();

				const theta = Math.acos( clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors

				normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );

			}

			binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

		}

		// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same

		if ( closed === true ) {

			let theta = Math.acos( clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );
			theta /= segments;

			if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {

				theta = - theta;

			}

			for ( let i = 1; i <= segments; i ++ ) {

				// twist a little...
				normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );
				binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

			}

		}

		return {
			tangents: tangents,
			normals: normals,
			binormals: binormals
		};

	}

	clone() {

		return new this.constructor().copy( this );

	}

	copy( source ) {

		this.arcLengthDivisions = source.arcLengthDivisions;

		return this;

	}

	toJSON() {

		const data = {
			metadata: {
				version: 4.5,
				type: 'Curve',
				generator: 'Curve.toJSON'
			}
		};

		data.arcLengthDivisions = this.arcLengthDivisions;
		data.type = this.type;

		return data;

	}

	fromJSON( json ) {

		this.arcLengthDivisions = json.arcLengthDivisions;

		return this;

	}

}

class EllipseCurve extends Curve {

	constructor( aX = 0, aY = 0, xRadius = 1, yRadius = 1, aStartAngle = 0, aEndAngle = Math.PI * 2, aClockwise = false, aRotation = 0 ) {

		super();

		this.type = 'EllipseCurve';

		this.aX = aX;
		this.aY = aY;

		this.xRadius = xRadius;
		this.yRadius = yRadius;

		this.aStartAngle = aStartAngle;
		this.aEndAngle = aEndAngle;

		this.aClockwise = aClockwise;

		this.aRotation = aRotation;

	}

	getPoint( t, optionalTarget ) {

		const point = optionalTarget || new Vector2();

		const twoPi = Math.PI * 2;
		let deltaAngle = this.aEndAngle - this.aStartAngle;
		const samePoints = Math.abs( deltaAngle ) < Number.EPSILON;

		// ensures that deltaAngle is 0 .. 2 PI
		while ( deltaAngle < 0 ) deltaAngle += twoPi;
		while ( deltaAngle > twoPi ) deltaAngle -= twoPi;

		if ( deltaAngle < Number.EPSILON ) {

			if ( samePoints ) {

				deltaAngle = 0;

			} else {

				deltaAngle = twoPi;

			}

		}

		if ( this.aClockwise === true && ! samePoints ) {

			if ( deltaAngle === twoPi ) {

				deltaAngle = - twoPi;

			} else {

				deltaAngle = deltaAngle - twoPi;

			}

		}

		const angle = this.aStartAngle + t * deltaAngle;
		let x = this.aX + this.xRadius * Math.cos( angle );
		let y = this.aY + this.yRadius * Math.sin( angle );

		if ( this.aRotation !== 0 ) {

			const cos = Math.cos( this.aRotation );
			const sin = Math.sin( this.aRotation );

			const tx = x - this.aX;
			const ty = y - this.aY;

			// Rotate the point about the center of the ellipse.
			x = tx * cos - ty * sin + this.aX;
			y = tx * sin + ty * cos + this.aY;

		}

		return point.set( x, y );

	}

	copy( source ) {

		super.copy( source );

		this.aX = source.aX;
		this.aY = source.aY;

		this.xRadius = source.xRadius;
		this.yRadius = source.yRadius;

		this.aStartAngle = source.aStartAngle;
		this.aEndAngle = source.aEndAngle;

		this.aClockwise = source.aClockwise;

		this.aRotation = source.aRotation;

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.aX = this.aX;
		data.aY = this.aY;

		data.xRadius = this.xRadius;
		data.yRadius = this.yRadius;

		data.aStartAngle = this.aStartAngle;
		data.aEndAngle = this.aEndAngle;

		data.aClockwise = this.aClockwise;

		data.aRotation = this.aRotation;

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.aX = json.aX;
		this.aY = json.aY;

		this.xRadius = json.xRadius;
		this.yRadius = json.yRadius;

		this.aStartAngle = json.aStartAngle;
		this.aEndAngle = json.aEndAngle;

		this.aClockwise = json.aClockwise;

		this.aRotation = json.aRotation;

		return this;

	}

}

EllipseCurve.prototype.isEllipseCurve = true;

class ArcCurve extends EllipseCurve {

	constructor( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

		super( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

		this.type = 'ArcCurve';

	}

}

ArcCurve.prototype.isArcCurve = true;

/**
 * Centripetal CatmullRom Curve - which is useful for avoiding
 * cusps and self-intersections in non-uniform catmull rom curves.
 * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
 *
 * curve.type accepts centripetal(default), chordal and catmullrom
 * curve.tension is used for catmullrom which defaults to 0.5
 */


/*
Based on an optimized c++ solution in
 - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
 - http://ideone.com/NoEbVM

This CubicPoly class could be used for reusing some variables and calculations,
but for three.js curve use, it could be possible inlined and flatten into a single function call
which can be placed in CurveUtils.
*/

function CubicPoly() {

	let c0 = 0, c1 = 0, c2 = 0, c3 = 0;

	/*
	 * Compute coefficients for a cubic polynomial
	 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
	 * such that
	 *   p(0) = x0, p(1) = x1
	 *  and
	 *   p'(0) = t0, p'(1) = t1.
	 */
	function init( x0, x1, t0, t1 ) {

		c0 = x0;
		c1 = t0;
		c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;
		c3 = 2 * x0 - 2 * x1 + t0 + t1;

	}

	return {

		initCatmullRom: function ( x0, x1, x2, x3, tension ) {

			init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );

		},

		initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {

			// compute tangents when parameterized in [t1,t2]
			let t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;
			let t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;

			// rescale tangents for parametrization in [0,1]
			t1 *= dt1;
			t2 *= dt1;

			init( x1, x2, t1, t2 );

		},

		calc: function ( t ) {

			const t2 = t * t;
			const t3 = t2 * t;
			return c0 + c1 * t + c2 * t2 + c3 * t3;

		}

	};

}

//

const tmp = new Vector3();
const px = new CubicPoly(), py = new CubicPoly(), pz = new CubicPoly();

class CatmullRomCurve3 extends Curve {

	constructor( points = [], closed = false, curveType = 'centripetal', tension = 0.5 ) {

		super();

		this.type = 'CatmullRomCurve3';

		this.points = points;
		this.closed = closed;
		this.curveType = curveType;
		this.tension = tension;

	}

	getPoint( t, optionalTarget = new Vector3() ) {

		const point = optionalTarget;

		const points = this.points;
		const l = points.length;

		const p = ( l - ( this.closed ? 0 : 1 ) ) * t;
		let intPoint = Math.floor( p );
		let weight = p - intPoint;

		if ( this.closed ) {

			intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / l ) + 1 ) * l;

		} else if ( weight === 0 && intPoint === l - 1 ) {

			intPoint = l - 2;
			weight = 1;

		}

		let p0, p3; // 4 points (p1 & p2 defined below)

		if ( this.closed || intPoint > 0 ) {

			p0 = points[ ( intPoint - 1 ) % l ];

		} else {

			// extrapolate first point
			tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );
			p0 = tmp;

		}

		const p1 = points[ intPoint % l ];
		const p2 = points[ ( intPoint + 1 ) % l ];

		if ( this.closed || intPoint + 2 < l ) {

			p3 = points[ ( intPoint + 2 ) % l ];

		} else {

			// extrapolate last point
			tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );
			p3 = tmp;

		}

		if ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) {

			// init Centripetal / Chordal Catmull-Rom
			const pow = this.curveType === 'chordal' ? 0.5 : 0.25;
			let dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );
			let dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );
			let dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );

			// safety check for repeated points
			if ( dt1 < 1e-4 ) dt1 = 1.0;
			if ( dt0 < 1e-4 ) dt0 = dt1;
			if ( dt2 < 1e-4 ) dt2 = dt1;

			px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );
			py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );
			pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );

		} else if ( this.curveType === 'catmullrom' ) {

			px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension );
			py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension );
			pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension );

		}

		point.set(
			px.calc( weight ),
			py.calc( weight ),
			pz.calc( weight )
		);

		return point;

	}

	copy( source ) {

		super.copy( source );

		this.points = [];

		for ( let i = 0, l = source.points.length; i < l; i ++ ) {

			const point = source.points[ i ];

			this.points.push( point.clone() );

		}

		this.closed = source.closed;
		this.curveType = source.curveType;
		this.tension = source.tension;

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.points = [];

		for ( let i = 0, l = this.points.length; i < l; i ++ ) {

			const point = this.points[ i ];
			data.points.push( point.toArray() );

		}

		data.closed = this.closed;
		data.curveType = this.curveType;
		data.tension = this.tension;

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.points = [];

		for ( let i = 0, l = json.points.length; i < l; i ++ ) {

			const point = json.points[ i ];
			this.points.push( new Vector3().fromArray( point ) );

		}

		this.closed = json.closed;
		this.curveType = json.curveType;
		this.tension = json.tension;

		return this;

	}

}

CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;

/**
 * Bezier Curves formulas obtained from
 * https://en.wikipedia.org/wiki/B%C3%A9zier_curve
 */

function CatmullRom( t, p0, p1, p2, p3 ) {

	const v0 = ( p2 - p0 ) * 0.5;
	const v1 = ( p3 - p1 ) * 0.5;
	const t2 = t * t;
	const t3 = t * t2;
	return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;

}

//

function QuadraticBezierP0( t, p ) {

	const k = 1 - t;
	return k * k * p;

}

function QuadraticBezierP1( t, p ) {

	return 2 * ( 1 - t ) * t * p;

}

function QuadraticBezierP2( t, p ) {

	return t * t * p;

}

function QuadraticBezier( t, p0, p1, p2 ) {

	return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +
		QuadraticBezierP2( t, p2 );

}

//

function CubicBezierP0( t, p ) {

	const k = 1 - t;
	return k * k * k * p;

}

function CubicBezierP1( t, p ) {

	const k = 1 - t;
	return 3 * k * k * t * p;

}

function CubicBezierP2( t, p ) {

	return 3 * ( 1 - t ) * t * t * p;

}

function CubicBezierP3( t, p ) {

	return t * t * t * p;

}

function CubicBezier( t, p0, p1, p2, p3 ) {

	return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +
		CubicBezierP3( t, p3 );

}

class CubicBezierCurve extends Curve {

	constructor( v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2(), v3 = new Vector2() ) {

		super();

		this.type = 'CubicBezierCurve';

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;
		this.v3 = v3;

	}

	getPoint( t, optionalTarget = new Vector2() ) {

		const point = optionalTarget;

		const v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;

		point.set(
			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
			CubicBezier( t, v0.y, v1.y, v2.y, v3.y )
		);

		return point;

	}

	copy( source ) {

		super.copy( source );

		this.v0.copy( source.v0 );
		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );
		this.v3.copy( source.v3 );

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		data.v3 = this.v3.toArray();

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.v0.fromArray( json.v0 );
		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );
		this.v3.fromArray( json.v3 );

		return this;

	}

}

CubicBezierCurve.prototype.isCubicBezierCurve = true;

class CubicBezierCurve3 extends Curve {

	constructor( v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3(), v3 = new Vector3() ) {

		super();

		this.type = 'CubicBezierCurve3';

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;
		this.v3 = v3;

	}

	getPoint( t, optionalTarget = new Vector3() ) {

		const point = optionalTarget;

		const v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;

		point.set(
			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
			CubicBezier( t, v0.y, v1.y, v2.y, v3.y ),
			CubicBezier( t, v0.z, v1.z, v2.z, v3.z )
		);

		return point;

	}

	copy( source ) {

		super.copy( source );

		this.v0.copy( source.v0 );
		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );
		this.v3.copy( source.v3 );

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();
		data.v3 = this.v3.toArray();

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.v0.fromArray( json.v0 );
		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );
		this.v3.fromArray( json.v3 );

		return this;

	}

}

CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;

class LineCurve extends Curve {

	constructor( v1 = new Vector2(), v2 = new Vector2() ) {

		super();

		this.type = 'LineCurve';

		this.v1 = v1;
		this.v2 = v2;

	}

	getPoint( t, optionalTarget = new Vector2() ) {

		const point = optionalTarget;

		if ( t === 1 ) {

			point.copy( this.v2 );

		} else {

			point.copy( this.v2 ).sub( this.v1 );
			point.multiplyScalar( t ).add( this.v1 );

		}

		return point;

	}

	// Line curve is linear, so we can overwrite default getPointAt
	getPointAt( u, optionalTarget ) {

		return this.getPoint( u, optionalTarget );

	}

	getTangent( t, optionalTarget ) {

		const tangent = optionalTarget || new Vector2();

		tangent.copy( this.v2 ).sub( this.v1 ).normalize();

		return tangent;

	}

	copy( source ) {

		super.copy( source );

		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );

		return this;

	}

}

LineCurve.prototype.isLineCurve = true;

class LineCurve3 extends Curve {

	constructor( v1 = new Vector3(), v2 = new Vector3() ) {

		super();

		this.type = 'LineCurve3';
		this.isLineCurve3 = true;

		this.v1 = v1;
		this.v2 = v2;

	}
	getPoint( t, optionalTarget = new Vector3() ) {

		const point = optionalTarget;

		if ( t === 1 ) {

			point.copy( this.v2 );

		} else {

			point.copy( this.v2 ).sub( this.v1 );
			point.multiplyScalar( t ).add( this.v1 );

		}

		return point;

	}
	// Line curve is linear, so we can overwrite default getPointAt
	getPointAt( u, optionalTarget ) {

		return this.getPoint( u, optionalTarget );

	}
	copy( source ) {

		super.copy( source );

		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );

		return this;

	}
	toJSON() {

		const data = super.toJSON();

		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();

		return data;

	}
	fromJSON( json ) {

		super.fromJSON( json );

		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );

		return this;

	}

}

class QuadraticBezierCurve extends Curve {

	constructor( v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2() ) {

		super();

		this.type = 'QuadraticBezierCurve';

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;

	}

	getPoint( t, optionalTarget = new Vector2() ) {

		const point = optionalTarget;

		const v0 = this.v0, v1 = this.v1, v2 = this.v2;

		point.set(
			QuadraticBezier( t, v0.x, v1.x, v2.x ),
			QuadraticBezier( t, v0.y, v1.y, v2.y )
		);

		return point;

	}

	copy( source ) {

		super.copy( source );

		this.v0.copy( source.v0 );
		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.v0.fromArray( json.v0 );
		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );

		return this;

	}

}

QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;

class QuadraticBezierCurve3 extends Curve {

	constructor( v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3() ) {

		super();

		this.type = 'QuadraticBezierCurve3';

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;

	}

	getPoint( t, optionalTarget = new Vector3() ) {

		const point = optionalTarget;

		const v0 = this.v0, v1 = this.v1, v2 = this.v2;

		point.set(
			QuadraticBezier( t, v0.x, v1.x, v2.x ),
			QuadraticBezier( t, v0.y, v1.y, v2.y ),
			QuadraticBezier( t, v0.z, v1.z, v2.z )
		);

		return point;

	}

	copy( source ) {

		super.copy( source );

		this.v0.copy( source.v0 );
		this.v1.copy( source.v1 );
		this.v2.copy( source.v2 );

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.v0 = this.v0.toArray();
		data.v1 = this.v1.toArray();
		data.v2 = this.v2.toArray();

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.v0.fromArray( json.v0 );
		this.v1.fromArray( json.v1 );
		this.v2.fromArray( json.v2 );

		return this;

	}

}

QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;

class SplineCurve extends Curve {

	constructor( points = [] ) {

		super();

		this.type = 'SplineCurve';

		this.points = points;

	}

	getPoint( t, optionalTarget = new Vector2() ) {

		const point = optionalTarget;

		const points = this.points;
		const p = ( points.length - 1 ) * t;

		const intPoint = Math.floor( p );
		const weight = p - intPoint;

		const p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];
		const p1 = points[ intPoint ];
		const p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
		const p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];

		point.set(
			CatmullRom( weight, p0.x, p1.x, p2.x, p3.x ),
			CatmullRom( weight, p0.y, p1.y, p2.y, p3.y )
		);

		return point;

	}

	copy( source ) {

		super.copy( source );

		this.points = [];

		for ( let i = 0, l = source.points.length; i < l; i ++ ) {

			const point = source.points[ i ];

			this.points.push( point.clone() );

		}

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.points = [];

		for ( let i = 0, l = this.points.length; i < l; i ++ ) {

			const point = this.points[ i ];
			data.points.push( point.toArray() );

		}

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.points = [];

		for ( let i = 0, l = json.points.length; i < l; i ++ ) {

			const point = json.points[ i ];
			this.points.push( new Vector2().fromArray( point ) );

		}

		return this;

	}

}

SplineCurve.prototype.isSplineCurve = true;

var Curves = /*#__PURE__*/Object.freeze({
	__proto__: null,
	ArcCurve: ArcCurve,
	CatmullRomCurve3: CatmullRomCurve3,
	CubicBezierCurve: CubicBezierCurve,
	CubicBezierCurve3: CubicBezierCurve3,
	EllipseCurve: EllipseCurve,
	LineCurve: LineCurve,
	LineCurve3: LineCurve3,
	QuadraticBezierCurve: QuadraticBezierCurve,
	QuadraticBezierCurve3: QuadraticBezierCurve3,
	SplineCurve: SplineCurve
});

/**************************************************************
 *	Curved Path - a curve path is simply a array of connected
 *  curves, but retains the api of a curve
 **************************************************************/

class CurvePath extends Curve {

	constructor() {

		super();

		this.type = 'CurvePath';

		this.curves = [];
		this.autoClose = false; // Automatically closes the path

	}

	add( curve ) {

		this.curves.push( curve );

	}

	closePath() {

		// Add a line curve if start and end of lines are not connected
		const startPoint = this.curves[ 0 ].getPoint( 0 );
		const endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );

		if ( ! startPoint.equals( endPoint ) ) {

			this.curves.push( new LineCurve( endPoint, startPoint ) );

		}

	}

	// To get accurate point with reference to
	// entire path distance at time t,
	// following has to be done:

	// 1. Length of each sub path have to be known
	// 2. Locate and identify type of curve
	// 3. Get t for the curve
	// 4. Return curve.getPointAt(t')

	getPoint( t, optionalTarget ) {

		const d = t * this.getLength();
		const curveLengths = this.getCurveLengths();
		let i = 0;

		// To think about boundaries points.

		while ( i < curveLengths.length ) {

			if ( curveLengths[ i ] >= d ) {

				const diff = curveLengths[ i ] - d;
				const curve = this.curves[ i ];

				const segmentLength = curve.getLength();
				const u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;

				return curve.getPointAt( u, optionalTarget );

			}

			i ++;

		}

		return null;

		// loop where sum != 0, sum > d , sum+1 <d

	}

	// We cannot use the default THREE.Curve getPoint() with getLength() because in
	// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
	// getPoint() depends on getLength

	getLength() {

		const lens = this.getCurveLengths();
		return lens[ lens.length - 1 ];

	}

	// cacheLengths must be recalculated.
	updateArcLengths() {

		this.needsUpdate = true;
		this.cacheLengths = null;
		this.getCurveLengths();

	}

	// Compute lengths and cache them
	// We cannot overwrite getLengths() because UtoT mapping uses it.

	getCurveLengths() {

		// We use cache values if curves and cache array are same length

		if ( this.cacheLengths && this.cacheLengths.length === this.curves.length ) {

			return this.cacheLengths;

		}

		// Get length of sub-curve
		// Push sums into cached array

		const lengths = [];
		let sums = 0;

		for ( let i = 0, l = this.curves.length; i < l; i ++ ) {

			sums += this.curves[ i ].getLength();
			lengths.push( sums );

		}

		this.cacheLengths = lengths;

		return lengths;

	}

	getSpacedPoints( divisions = 40 ) {

		const points = [];

		for ( let i = 0; i <= divisions; i ++ ) {

			points.push( this.getPoint( i / divisions ) );

		}

		if ( this.autoClose ) {

			points.push( points[ 0 ] );

		}

		return points;

	}

	getPoints( divisions = 12 ) {

		const points = [];
		let last;

		for ( let i = 0, curves = this.curves; i < curves.length; i ++ ) {

			const curve = curves[ i ];
			const resolution = ( curve && curve.isEllipseCurve ) ? divisions * 2
				: ( curve && ( curve.isLineCurve || curve.isLineCurve3 ) ) ? 1
					: ( curve && curve.isSplineCurve ) ? divisions * curve.points.length
						: divisions;

			const pts = curve.getPoints( resolution );

			for ( let j = 0; j < pts.length; j ++ ) {

				const point = pts[ j ];

				if ( last && last.equals( point ) ) continue; // ensures no consecutive points are duplicates

				points.push( point );
				last = point;

			}

		}

		if ( this.autoClose && points.length > 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) {

			points.push( points[ 0 ] );

		}

		return points;

	}

	copy( source ) {

		super.copy( source );

		this.curves = [];

		for ( let i = 0, l = source.curves.length; i < l; i ++ ) {

			const curve = source.curves[ i ];

			this.curves.push( curve.clone() );

		}

		this.autoClose = source.autoClose;

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.autoClose = this.autoClose;
		data.curves = [];

		for ( let i = 0, l = this.curves.length; i < l; i ++ ) {

			const curve = this.curves[ i ];
			data.curves.push( curve.toJSON() );

		}

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.autoClose = json.autoClose;
		this.curves = [];

		for ( let i = 0, l = json.curves.length; i < l; i ++ ) {

			const curve = json.curves[ i ];
			this.curves.push( new Curves[ curve.type ]().fromJSON( curve ) );

		}

		return this;

	}

}

class Path extends CurvePath {

	constructor( points ) {

		super();
		this.type = 'Path';

		this.currentPoint = new Vector2();

		if ( points ) {

			this.setFromPoints( points );

		}

	}

	setFromPoints( points ) {

		this.moveTo( points[ 0 ].x, points[ 0 ].y );

		for ( let i = 1, l = points.length; i < l; i ++ ) {

			this.lineTo( points[ i ].x, points[ i ].y );

		}

		return this;

	}

	moveTo( x, y ) {

		this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?

		return this;

	}

	lineTo( x, y ) {

		const curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );
		this.curves.push( curve );

		this.currentPoint.set( x, y );

		return this;

	}

	quadraticCurveTo( aCPx, aCPy, aX, aY ) {

		const curve = new QuadraticBezierCurve(
			this.currentPoint.clone(),
			new Vector2( aCPx, aCPy ),
			new Vector2( aX, aY )
		);

		this.curves.push( curve );

		this.currentPoint.set( aX, aY );

		return this;

	}

	bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {

		const curve = new CubicBezierCurve(
			this.currentPoint.clone(),
			new Vector2( aCP1x, aCP1y ),
			new Vector2( aCP2x, aCP2y ),
			new Vector2( aX, aY )
		);

		this.curves.push( curve );

		this.currentPoint.set( aX, aY );

		return this;

	}

	splineThru( pts /*Array of Vector*/ ) {

		const npts = [ this.currentPoint.clone() ].concat( pts );

		const curve = new SplineCurve( npts );
		this.curves.push( curve );

		this.currentPoint.copy( pts[ pts.length - 1 ] );

		return this;

	}

	arc( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

		const x0 = this.currentPoint.x;
		const y0 = this.currentPoint.y;

		this.absarc( aX + x0, aY + y0, aRadius,
			aStartAngle, aEndAngle, aClockwise );

		return this;

	}

	absarc( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

		this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

		return this;

	}

	ellipse( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

		const x0 = this.currentPoint.x;
		const y0 = this.currentPoint.y;

		this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );

		return this;

	}

	absellipse( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

		const curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );

		if ( this.curves.length > 0 ) {

			// if a previous curve is present, attempt to join
			const firstPoint = curve.getPoint( 0 );

			if ( ! firstPoint.equals( this.currentPoint ) ) {

				this.lineTo( firstPoint.x, firstPoint.y );

			}

		}

		this.curves.push( curve );

		const lastPoint = curve.getPoint( 1 );
		this.currentPoint.copy( lastPoint );

		return this;

	}

	copy( source ) {

		super.copy( source );

		this.currentPoint.copy( source.currentPoint );

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.currentPoint = this.currentPoint.toArray();

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.currentPoint.fromArray( json.currentPoint );

		return this;

	}

}

class Shape extends Path {

	constructor( points ) {

		super( points );

		this.uuid = generateUUID();

		this.type = 'Shape';

		this.holes = [];

	}

	getPointsHoles( divisions ) {

		const holesPts = [];

		for ( let i = 0, l = this.holes.length; i < l; i ++ ) {

			holesPts[ i ] = this.holes[ i ].getPoints( divisions );

		}

		return holesPts;

	}

	// get points of shape and holes (keypoints based on segments parameter)

	extractPoints( divisions ) {

		return {

			shape: this.getPoints( divisions ),
			holes: this.getPointsHoles( divisions )

		};

	}

	copy( source ) {

		super.copy( source );

		this.holes = [];

		for ( let i = 0, l = source.holes.length; i < l; i ++ ) {

			const hole = source.holes[ i ];

			this.holes.push( hole.clone() );

		}

		return this;

	}

	toJSON() {

		const data = super.toJSON();

		data.uuid = this.uuid;
		data.holes = [];

		for ( let i = 0, l = this.holes.length; i < l; i ++ ) {

			const hole = this.holes[ i ];
			data.holes.push( hole.toJSON() );

		}

		return data;

	}

	fromJSON( json ) {

		super.fromJSON( json );

		this.uuid = json.uuid;
		this.holes = [];

		for ( let i = 0, l = json.holes.length; i < l; i ++ ) {

			const hole = json.holes[ i ];
			this.holes.push( new Path().fromJSON( hole ) );

		}

		return this;

	}

}

/**
 * Port from https://github.com/mapbox/earcut (v2.2.2)
 */

const Earcut = {

	triangulate: function ( data, holeIndices, dim = 2 ) {

		const hasHoles = holeIndices && holeIndices.length;
		const outerLen = hasHoles ? holeIndices[ 0 ] * dim : data.length;
		let outerNode = linkedList( data, 0, outerLen, dim, true );
		const triangles = [];

		if ( ! outerNode || outerNode.next === outerNode.prev ) return triangles;

		let minX, minY, maxX, maxY, x, y, invSize;

		if ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim );

		// if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
		if ( data.length > 80 * dim ) {

			minX = maxX = data[ 0 ];
			minY = maxY = data[ 1 ];

			for ( let i = dim; i < outerLen; i += dim ) {

				x = data[ i ];
				y = data[ i + 1 ];
				if ( x < minX ) minX = x;
				if ( y < minY ) minY = y;
				if ( x > maxX ) maxX = x;
				if ( y > maxY ) maxY = y;

			}

			// minX, minY and invSize are later used to transform coords into integers for z-order calculation
			invSize = Math.max( maxX - minX, maxY - minY );
			invSize = invSize !== 0 ? 1 / invSize : 0;

		}

		earcutLinked( outerNode, triangles, dim, minX, minY, invSize );

		return triangles;

	}

};

// create a circular doubly linked list from polygon points in the specified winding order
function linkedList( data, start, end, dim, clockwise ) {

	let i, last;

	if ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) {

		for ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );

	} else {

		for ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );

	}

	if ( last && equals( last, last.next ) ) {

		removeNode( last );
		last = last.next;

	}

	return last;

}

// eliminate colinear or duplicate points
function filterPoints( start, end ) {

	if ( ! start ) return start;
	if ( ! end ) end = start;

	let p = start,
		again;
	do {

		again = false;

		if ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) {

			removeNode( p );
			p = end = p.prev;
			if ( p === p.next ) break;
			again = true;

		} else {

			p = p.next;

		}

	} while ( again || p !== end );

	return end;

}

// main ear slicing loop which triangulates a polygon (given as a linked list)
function earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) {

	if ( ! ear ) return;

	// interlink polygon nodes in z-order
	if ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize );

	let stop = ear,
		prev, next;

	// iterate through ears, slicing them one by one
	while ( ear.prev !== ear.next ) {

		prev = ear.prev;
		next = ear.next;

		if ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) {

			// cut off the triangle
			triangles.push( prev.i / dim );
			triangles.push( ear.i / dim );
			triangles.push( next.i / dim );

			removeNode( ear );

			// skipping the next vertex leads to less sliver triangles
			ear = next.next;
			stop = next.next;

			continue;

		}

		ear = next;

		// if we looped through the whole remaining polygon and can't find any more ears
		if ( ear === stop ) {

			// try filtering points and slicing again
			if ( ! pass ) {

				earcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 );

				// if this didn't work, try curing all small self-intersections locally

			} else if ( pass === 1 ) {

				ear = cureLocalIntersections( filterPoints( ear ), triangles, dim );
				earcutLinked( ear, triangles, dim, minX, minY, invSize, 2 );

				// as a last resort, try splitting the remaining polygon into two

			} else if ( pass === 2 ) {

				splitEarcut( ear, triangles, dim, minX, minY, invSize );

			}

			break;

		}

	}

}

// check whether a polygon node forms a valid ear with adjacent nodes
function isEar( ear ) {

	const a = ear.prev,
		b = ear,
		c = ear.next;

	if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear

	// now make sure we don't have other points inside the potential ear
	let p = ear.next.next;

	while ( p !== ear.prev ) {

		if ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
			area( p.prev, p, p.next ) >= 0 ) return false;
		p = p.next;

	}

	return true;

}

function isEarHashed( ear, minX, minY, invSize ) {

	const a = ear.prev,
		b = ear,
		c = ear.next;

	if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear

	// triangle bbox; min & max are calculated like this for speed
	const minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ),
		minTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ),
		maxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ),
		maxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y );

	// z-order range for the current triangle bbox;
	const minZ = zOrder( minTX, minTY, minX, minY, invSize ),
		maxZ = zOrder( maxTX, maxTY, minX, minY, invSize );

	let p = ear.prevZ,
		n = ear.nextZ;

	// look for points inside the triangle in both directions
	while ( p && p.z >= minZ && n && n.z <= maxZ ) {

		if ( p !== ear.prev && p !== ear.next &&
			pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
			area( p.prev, p, p.next ) >= 0 ) return false;
		p = p.prevZ;

		if ( n !== ear.prev && n !== ear.next &&
			pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y ) &&
			area( n.prev, n, n.next ) >= 0 ) return false;
		n = n.nextZ;

	}

	// look for remaining points in decreasing z-order
	while ( p && p.z >= minZ ) {

		if ( p !== ear.prev && p !== ear.next &&
			pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
			area( p.prev, p, p.next ) >= 0 ) return false;
		p = p.prevZ;

	}

	// look for remaining points in increasing z-order
	while ( n && n.z <= maxZ ) {

		if ( n !== ear.prev && n !== ear.next &&
			pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y ) &&
			area( n.prev, n, n.next ) >= 0 ) return false;
		n = n.nextZ;

	}

	return true;

}

// go through all polygon nodes and cure small local self-intersections
function cureLocalIntersections( start, triangles, dim ) {

	let p = start;
	do {

		const a = p.prev,
			b = p.next.next;

		if ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) {

			triangles.push( a.i / dim );
			triangles.push( p.i / dim );
			triangles.push( b.i / dim );

			// remove two nodes involved
			removeNode( p );
			removeNode( p.next );

			p = start = b;

		}

		p = p.next;

	} while ( p !== start );

	return filterPoints( p );

}

// try splitting polygon into two and triangulate them independently
function splitEarcut( start, triangles, dim, minX, minY, invSize ) {

	// look for a valid diagonal that divides the polygon into two
	let a = start;
	do {

		let b = a.next.next;
		while ( b !== a.prev ) {

			if ( a.i !== b.i && isValidDiagonal( a, b ) ) {

				// split the polygon in two by the diagonal
				let c = splitPolygon( a, b );

				// filter colinear points around the cuts
				a = filterPoints( a, a.next );
				c = filterPoints( c, c.next );

				// run earcut on each half
				earcutLinked( a, triangles, dim, minX, minY, invSize );
				earcutLinked( c, triangles, dim, minX, minY, invSize );
				return;

			}

			b = b.next;

		}

		a = a.next;

	} while ( a !== start );

}

// link every hole into the outer loop, producing a single-ring polygon without holes
function eliminateHoles( data, holeIndices, outerNode, dim ) {

	const queue = [];
	let i, len, start, end, list;

	for ( i = 0, len = holeIndices.length; i < len; i ++ ) {

		start = holeIndices[ i ] * dim;
		end = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length;
		list = linkedList( data, start, end, dim, false );
		if ( list === list.next ) list.steiner = true;
		queue.push( getLeftmost( list ) );

	}

	queue.sort( compareX );

	// process holes from left to right
	for ( i = 0; i < queue.length; i ++ ) {

		eliminateHole( queue[ i ], outerNode );
		outerNode = filterPoints( outerNode, outerNode.next );

	}

	return outerNode;

}

function compareX( a, b ) {

	return a.x - b.x;

}

// find a bridge between vertices that connects hole with an outer ring and and link it
function eliminateHole( hole, outerNode ) {

	outerNode = findHoleBridge( hole, outerNode );
	if ( outerNode ) {

		const b = splitPolygon( outerNode, hole );

		// filter collinear points around the cuts
		filterPoints( outerNode, outerNode.next );
		filterPoints( b, b.next );

	}

}

// David Eberly's algorithm for finding a bridge between hole and outer polygon
function findHoleBridge( hole, outerNode ) {

	let p = outerNode;
	const hx = hole.x;
	const hy = hole.y;
	let qx = - Infinity, m;

	// find a segment intersected by a ray from the hole's leftmost point to the left;
	// segment's endpoint with lesser x will be potential connection point
	do {

		if ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) {

			const x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y );
			if ( x <= hx && x > qx ) {

				qx = x;
				if ( x === hx ) {

					if ( hy === p.y ) return p;
					if ( hy === p.next.y ) return p.next;

				}

				m = p.x < p.next.x ? p : p.next;

			}

		}

		p = p.next;

	} while ( p !== outerNode );

	if ( ! m ) return null;

	if ( hx === qx ) return m; // hole touches outer segment; pick leftmost endpoint

	// look for points inside the triangle of hole point, segment intersection and endpoint;
	// if there are no points found, we have a valid connection;
	// otherwise choose the point of the minimum angle with the ray as connection point

	const stop = m,
		mx = m.x,
		my = m.y;
	let tanMin = Infinity, tan;

	p = m;

	do {

		if ( hx >= p.x && p.x >= mx && hx !== p.x &&
				pointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) {

			tan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential

			if ( locallyInside( p, hole ) && ( tan < tanMin || ( tan === tanMin && ( p.x > m.x || ( p.x === m.x && sectorContainsSector( m, p ) ) ) ) ) ) {

				m = p;
				tanMin = tan;

			}

		}

		p = p.next;

	} while ( p !== stop );

	return m;

}

// whether sector in vertex m contains sector in vertex p in the same coordinates
function sectorContainsSector( m, p ) {

	return area( m.prev, m, p.prev ) < 0 && area( p.next, m, m.next ) < 0;

}

// interlink polygon nodes in z-order
function indexCurve( start, minX, minY, invSize ) {

	let p = start;
	do {

		if ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize );
		p.prevZ = p.prev;
		p.nextZ = p.next;
		p = p.next;

	} while ( p !== start );

	p.prevZ.nextZ = null;
	p.prevZ = null;

	sortLinked( p );

}

// Simon Tatham's linked list merge sort algorithm
// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
function sortLinked( list ) {

	let i, p, q, e, tail, numMerges, pSize, qSize,
		inSize = 1;

	do {

		p = list;
		list = null;
		tail = null;
		numMerges = 0;

		while ( p ) {

			numMerges ++;
			q = p;
			pSize = 0;
			for ( i = 0; i < inSize; i ++ ) {

				pSize ++;
				q = q.nextZ;
				if ( ! q ) break;

			}

			qSize = inSize;

			while ( pSize > 0 || ( qSize > 0 && q ) ) {

				if ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) {

					e = p;
					p = p.nextZ;
					pSize --;

				} else {

					e = q;
					q = q.nextZ;
					qSize --;

				}

				if ( tail ) tail.nextZ = e;
				else list = e;

				e.prevZ = tail;
				tail = e;

			}

			p = q;

		}

		tail.nextZ = null;
		inSize *= 2;

	} while ( numMerges > 1 );

	return list;

}

// z-order of a point given coords and inverse of the longer side of data bbox
function zOrder( x, y, minX, minY, invSize ) {

	// coords are transformed into non-negative 15-bit integer range
	x = 32767 * ( x - minX ) * invSize;
	y = 32767 * ( y - minY ) * invSize;

	x = ( x | ( x << 8 ) ) & 0x00FF00FF;
	x = ( x | ( x << 4 ) ) & 0x0F0F0F0F;
	x = ( x | ( x << 2 ) ) & 0x33333333;
	x = ( x | ( x << 1 ) ) & 0x55555555;

	y = ( y | ( y << 8 ) ) & 0x00FF00FF;
	y = ( y | ( y << 4 ) ) & 0x0F0F0F0F;
	y = ( y | ( y << 2 ) ) & 0x33333333;
	y = ( y | ( y << 1 ) ) & 0x55555555;

	return x | ( y << 1 );

}

// find the leftmost node of a polygon ring
function getLeftmost( start ) {

	let p = start,
		leftmost = start;
	do {

		if ( p.x < leftmost.x || ( p.x === leftmost.x && p.y < leftmost.y ) ) leftmost = p;
		p = p.next;

	} while ( p !== start );

	return leftmost;

}

// check if a point lies within a convex triangle
function pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) {

	return ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 &&
			( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 &&
			( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0;

}

// check if a diagonal between two polygon nodes is valid (lies in polygon interior)
function isValidDiagonal( a, b ) {

	return a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) && // dones't intersect other edges
		( locallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b ) && // locally visible
		( area( a.prev, a, b.prev ) || area( a, b.prev, b ) ) || // does not create opposite-facing sectors
		equals( a, b ) && area( a.prev, a, a.next ) > 0 && area( b.prev, b, b.next ) > 0 ); // special zero-length case

}

// signed area of a triangle
function area( p, q, r ) {

	return ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y );

}

// check if two points are equal
function equals( p1, p2 ) {

	return p1.x === p2.x && p1.y === p2.y;

}

// check if two segments intersect
function intersects( p1, q1, p2, q2 ) {

	const o1 = sign( area( p1, q1, p2 ) );
	const o2 = sign( area( p1, q1, q2 ) );
	const o3 = sign( area( p2, q2, p1 ) );
	const o4 = sign( area( p2, q2, q1 ) );

	if ( o1 !== o2 && o3 !== o4 ) return true; // general case

	if ( o1 === 0 && onSegment( p1, p2, q1 ) ) return true; // p1, q1 and p2 are collinear and p2 lies on p1q1
	if ( o2 === 0 && onSegment( p1, q2, q1 ) ) return true; // p1, q1 and q2 are collinear and q2 lies on p1q1
	if ( o3 === 0 && onSegment( p2, p1, q2 ) ) return true; // p2, q2 and p1 are collinear and p1 lies on p2q2
	if ( o4 === 0 && onSegment( p2, q1, q2 ) ) return true; // p2, q2 and q1 are collinear and q1 lies on p2q2

	return false;

}

// for collinear points p, q, r, check if point q lies on segment pr
function onSegment( p, q, r ) {

	return q.x <= Math.max( p.x, r.x ) && q.x >= Math.min( p.x, r.x ) && q.y <= Math.max( p.y, r.y ) && q.y >= Math.min( p.y, r.y );

}

function sign( num ) {

	return num > 0 ? 1 : num < 0 ? - 1 : 0;

}

// check if a polygon diagonal intersects any polygon segments
function intersectsPolygon( a, b ) {

	let p = a;
	do {

		if ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&
				intersects( p, p.next, a, b ) ) return true;
		p = p.next;

	} while ( p !== a );

	return false;

}

// check if a polygon diagonal is locally inside the polygon
function locallyInside( a, b ) {

	return area( a.prev, a, a.next ) < 0 ?
		area( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 :
		area( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0;

}

// check if the middle point of a polygon diagonal is inside the polygon
function middleInside( a, b ) {

	let p = a,
		inside = false;
	const px = ( a.x + b.x ) / 2,
		py = ( a.y + b.y ) / 2;
	do {

		if ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y &&
				( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) )
			inside = ! inside;
		p = p.next;

	} while ( p !== a );

	return inside;

}

// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
// if one belongs to the outer ring and another to a hole, it merges it into a single ring
function splitPolygon( a, b ) {

	const a2 = new Node( a.i, a.x, a.y ),
		b2 = new Node( b.i, b.x, b.y ),
		an = a.next,
		bp = b.prev;

	a.next = b;
	b.prev = a;

	a2.next = an;
	an.prev = a2;

	b2.next = a2;
	a2.prev = b2;

	bp.next = b2;
	b2.prev = bp;

	return b2;

}

// create a node and optionally link it with previous one (in a circular doubly linked list)
function insertNode( i, x, y, last ) {

	const p = new Node( i, x, y );

	if ( ! last ) {

		p.prev = p;
		p.next = p;

	} else {

		p.next = last.next;
		p.prev = last;
		last.next.prev = p;
		last.next = p;

	}

	return p;

}

function removeNode( p ) {

	p.next.prev = p.prev;
	p.prev.next = p.next;

	if ( p.prevZ ) p.prevZ.nextZ = p.nextZ;
	if ( p.nextZ ) p.nextZ.prevZ = p.prevZ;

}

function Node( i, x, y ) {

	// vertex index in coordinates array
	this.i = i;

	// vertex coordinates
	this.x = x;
	this.y = y;

	// previous and next vertex nodes in a polygon ring
	this.prev = null;
	this.next = null;

	// z-order curve value
	this.z = null;

	// previous and next nodes in z-order
	this.prevZ = null;
	this.nextZ = null;

	// indicates whether this is a steiner point
	this.steiner = false;

}

function signedArea( data, start, end, dim ) {

	let sum = 0;
	for ( let i = start, j = end - dim; i < end; i += dim ) {

		sum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] );
		j = i;

	}

	return sum;

}

class ShapeUtils {

	// calculate area of the contour polygon

	static area( contour ) {

		const n = contour.length;
		let a = 0.0;

		for ( let p = n - 1, q = 0; q < n; p = q ++ ) {

			a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;

		}

		return a * 0.5;

	}

	static isClockWise( pts ) {

		return ShapeUtils.area( pts ) < 0;

	}

	static triangulateShape( contour, holes ) {

		const vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]
		const holeIndices = []; // array of hole indices
		const faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]

		removeDupEndPts( contour );
		addContour( vertices, contour );

		//

		let holeIndex = contour.length;

		holes.forEach( removeDupEndPts );

		for ( let i = 0; i < holes.length; i ++ ) {

			holeIndices.push( holeIndex );
			holeIndex += holes[ i ].length;
			addContour( vertices, holes[ i ] );

		}

		//

		const triangles = Earcut.triangulate( vertices, holeIndices );

		//

		for ( let i = 0; i < triangles.length; i += 3 ) {

			faces.push( triangles.slice( i, i + 3 ) );

		}

		return faces;

	}

}

function removeDupEndPts( points ) {

	const l = points.length;

	if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {

		points.pop();

	}

}

function addContour( vertices, contour ) {

	for ( let i = 0; i < contour.length; i ++ ) {

		vertices.push( contour[ i ].x );
		vertices.push( contour[ i ].y );

	}

}

/**
 * Creates extruded geometry from a path shape.
 *
 * parameters = {
 *
 *  curveSegments: <int>, // number of points on the curves
 *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
 *  depth: <float>, // Depth to extrude the shape
 *
 *  bevelEnabled: <bool>, // turn on bevel
 *  bevelThickness: <float>, // how deep into the original shape bevel goes
 *  bevelSize: <float>, // how far from shape outline (including bevelOffset) is bevel
 *  bevelOffset: <float>, // how far from shape outline does bevel start
 *  bevelSegments: <int>, // number of bevel layers
 *
 *  extrudePath: <THREE.Curve> // curve to extrude shape along
 *
 *  UVGenerator: <Object> // object that provides UV generator functions
 *
 * }
 */

class ExtrudeGeometry extends BufferGeometry {

	constructor( shapes = new Shape( [ new Vector2( 0.5, 0.5 ), new Vector2( - 0.5, 0.5 ), new Vector2( - 0.5, - 0.5 ), new Vector2( 0.5, - 0.5 ) ] ), options = {} ) {

		super();

		this.type = 'ExtrudeGeometry';

		this.parameters = {
			shapes: shapes,
			options: options
		};

		shapes = Array.isArray( shapes ) ? shapes : [ shapes ];

		const scope = this;

		const verticesArray = [];
		const uvArray = [];

		for ( let i = 0, l = shapes.length; i < l; i ++ ) {

			const shape = shapes[ i ];
			addShape( shape );

		}

		// build geometry

		this.setAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) );

		this.computeVertexNormals();

		// functions

		function addShape( shape ) {

			const placeholder = [];

			// options

			const curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
			const steps = options.steps !== undefined ? options.steps : 1;
			let depth = options.depth !== undefined ? options.depth : 1;

			let bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;
			let bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 0.2;
			let bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 0.1;
			let bevelOffset = options.bevelOffset !== undefined ? options.bevelOffset : 0;
			let bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;

			const extrudePath = options.extrudePath;

			const uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator;

			// deprecated options

			if ( options.amount !== undefined ) {

				console.warn( 'THREE.ExtrudeBufferGeometry: amount has been renamed to depth.' );
				depth = options.amount;

			}

			//

			let extrudePts, extrudeByPath = false;
			let splineTube, binormal, normal, position2;

			if ( extrudePath ) {

				extrudePts = extrudePath.getSpacedPoints( steps );

				extrudeByPath = true;
				bevelEnabled = false; // bevels not supported for path extrusion

				// SETUP TNB variables

				// TODO1 - have a .isClosed in spline?

				splineTube = extrudePath.computeFrenetFrames( steps, false );

				// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);

				binormal = new Vector3();
				normal = new Vector3();
				position2 = new Vector3();

			}

			// Safeguards if bevels are not enabled

			if ( ! bevelEnabled ) {

				bevelSegments = 0;
				bevelThickness = 0;
				bevelSize = 0;
				bevelOffset = 0;

			}

			// Variables initialization

			const shapePoints = shape.extractPoints( curveSegments );

			let vertices = shapePoints.shape;
			const holes = shapePoints.holes;

			const reverse = ! ShapeUtils.isClockWise( vertices );

			if ( reverse ) {

				vertices = vertices.reverse();

				// Maybe we should also check if holes are in the opposite direction, just to be safe ...

				for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

					const ahole = holes[ h ];

					if ( ShapeUtils.isClockWise( ahole ) ) {

						holes[ h ] = ahole.reverse();

					}

				}

			}


			const faces = ShapeUtils.triangulateShape( vertices, holes );

			/* Vertices */

			const contour = vertices; // vertices has all points but contour has only points of circumference

			for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

				const ahole = holes[ h ];

				vertices = vertices.concat( ahole );

			}


			function scalePt2( pt, vec, size ) {

				if ( ! vec ) console.error( 'THREE.ExtrudeGeometry: vec does not exist' );

				return vec.clone().multiplyScalar( size ).add( pt );

			}

			const vlen = vertices.length, flen = faces.length;


			// Find directions for point movement


			function getBevelVec( inPt, inPrev, inNext ) {

				// computes for inPt the corresponding point inPt' on a new contour
				//   shifted by 1 unit (length of normalized vector) to the left
				// if we walk along contour clockwise, this new contour is outside the old one
				//
				// inPt' is the intersection of the two lines parallel to the two
				//  adjacent edges of inPt at a distance of 1 unit on the left side.

				let v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt

				// good reading for geometry algorithms (here: line-line intersection)
				// http://geomalgorithms.com/a05-_intersect-1.html

				const v_prev_x = inPt.x - inPrev.x,
					v_prev_y = inPt.y - inPrev.y;
				const v_next_x = inNext.x - inPt.x,
					v_next_y = inNext.y - inPt.y;

				const v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );

				// check for collinear edges
				const collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );

				if ( Math.abs( collinear0 ) > Number.EPSILON ) {

					// not collinear

					// length of vectors for normalizing

					const v_prev_len = Math.sqrt( v_prev_lensq );
					const v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );

					// shift adjacent points by unit vectors to the left

					const ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );
					const ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );

					const ptNextShift_x = ( inNext.x - v_next_y / v_next_len );
					const ptNextShift_y = ( inNext.y + v_next_x / v_next_len );

					// scaling factor for v_prev to intersection point

					const sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -
							( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /
						( v_prev_x * v_next_y - v_prev_y * v_next_x );

					// vector from inPt to intersection point

					v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );
					v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );

					// Don't normalize!, otherwise sharp corners become ugly
					//  but prevent crazy spikes
					const v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );
					if ( v_trans_lensq <= 2 ) {

						return new Vector2( v_trans_x, v_trans_y );

					} else {

						shrink_by = Math.sqrt( v_trans_lensq / 2 );

					}

				} else {

					// handle special case of collinear edges

					let direction_eq = false; // assumes: opposite

					if ( v_prev_x > Number.EPSILON ) {

						if ( v_next_x > Number.EPSILON ) {

							direction_eq = true;

						}

					} else {

						if ( v_prev_x < - Number.EPSILON ) {

							if ( v_next_x < - Number.EPSILON ) {

								direction_eq = true;

							}

						} else {

							if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {

								direction_eq = true;

							}

						}

					}

					if ( direction_eq ) {

						// console.log("Warning: lines are a straight sequence");
						v_trans_x = - v_prev_y;
						v_trans_y = v_prev_x;
						shrink_by = Math.sqrt( v_prev_lensq );

					} else {

						// console.log("Warning: lines are a straight spike");
						v_trans_x = v_prev_x;
						v_trans_y = v_prev_y;
						shrink_by = Math.sqrt( v_prev_lensq / 2 );

					}

				}

				return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );

			}


			const contourMovements = [];

			for ( let i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

				if ( j === il ) j = 0;
				if ( k === il ) k = 0;

				//  (j)---(i)---(k)
				// console.log('i,j,k', i, j , k)

				contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );

			}

			const holesMovements = [];
			let oneHoleMovements, verticesMovements = contourMovements.concat();

			for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

				const ahole = holes[ h ];

				oneHoleMovements = [];

				for ( let i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

					if ( j === il ) j = 0;
					if ( k === il ) k = 0;

					//  (j)---(i)---(k)
					oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );

				}

				holesMovements.push( oneHoleMovements );
				verticesMovements = verticesMovements.concat( oneHoleMovements );

			}


			// Loop bevelSegments, 1 for the front, 1 for the back

			for ( let b = 0; b < bevelSegments; b ++ ) {

				//for ( b = bevelSegments; b > 0; b -- ) {

				const t = b / bevelSegments;
				const z = bevelThickness * Math.cos( t * Math.PI / 2 );
				const bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset;

				// contract shape

				for ( let i = 0, il = contour.length; i < il; i ++ ) {

					const vert = scalePt2( contour[ i ], contourMovements[ i ], bs );

					v( vert.x, vert.y, - z );

				}

				// expand holes

				for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

					const ahole = holes[ h ];
					oneHoleMovements = holesMovements[ h ];

					for ( let i = 0, il = ahole.length; i < il; i ++ ) {

						const vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

						v( vert.x, vert.y, - z );

					}

				}

			}

			const bs = bevelSize + bevelOffset;

			// Back facing vertices

			for ( let i = 0; i < vlen; i ++ ) {

				const vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

				if ( ! extrudeByPath ) {

					v( vert.x, vert.y, 0 );

				} else {

					// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );

					normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );
					binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );

					position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );

					v( position2.x, position2.y, position2.z );

				}

			}

			// Add stepped vertices...
			// Including front facing vertices

			for ( let s = 1; s <= steps; s ++ ) {

				for ( let i = 0; i < vlen; i ++ ) {

					const vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

					if ( ! extrudeByPath ) {

						v( vert.x, vert.y, depth / steps * s );

					} else {

						// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );

						normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );
						binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );

						position2.copy( extrudePts[ s ] ).add( normal ).add( binormal );

						v( position2.x, position2.y, position2.z );

					}

				}

			}


			// Add bevel segments planes

			//for ( b = 1; b <= bevelSegments; b ++ ) {
			for ( let b = bevelSegments - 1; b >= 0; b -- ) {

				const t = b / bevelSegments;
				const z = bevelThickness * Math.cos( t * Math.PI / 2 );
				const bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset;

				// contract shape

				for ( let i = 0, il = contour.length; i < il; i ++ ) {

					const vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
					v( vert.x, vert.y, depth + z );

				}

				// expand holes

				for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

					const ahole = holes[ h ];
					oneHoleMovements = holesMovements[ h ];

					for ( let i = 0, il = ahole.length; i < il; i ++ ) {

						const vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

						if ( ! extrudeByPath ) {

							v( vert.x, vert.y, depth + z );

						} else {

							v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );

						}

					}

				}

			}

			/* Faces */

			// Top and bottom faces

			buildLidFaces();

			// Sides faces

			buildSideFaces();


			/////  Internal functions

			function buildLidFaces() {

				const start = verticesArray.length / 3;

				if ( bevelEnabled ) {

					let layer = 0; // steps + 1
					let offset = vlen * layer;

					// Bottom faces

					for ( let i = 0; i < flen; i ++ ) {

						const face = faces[ i ];
						f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );

					}

					layer = steps + bevelSegments * 2;
					offset = vlen * layer;

					// Top faces

					for ( let i = 0; i < flen; i ++ ) {

						const face = faces[ i ];
						f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );

					}

				} else {

					// Bottom faces

					for ( let i = 0; i < flen; i ++ ) {

						const face = faces[ i ];
						f3( face[ 2 ], face[ 1 ], face[ 0 ] );

					}

					// Top faces

					for ( let i = 0; i < flen; i ++ ) {

						const face = faces[ i ];
						f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );

					}

				}

				scope.addGroup( start, verticesArray.length / 3 - start, 0 );

			}

			// Create faces for the z-sides of the shape

			function buildSideFaces() {

				const start = verticesArray.length / 3;
				let layeroffset = 0;
				sidewalls( contour, layeroffset );
				layeroffset += contour.length;

				for ( let h = 0, hl = holes.length; h < hl; h ++ ) {

					const ahole = holes[ h ];
					sidewalls( ahole, layeroffset );

					//, true
					layeroffset += ahole.length;

				}


				scope.addGroup( start, verticesArray.length / 3 - start, 1 );


			}

			function sidewalls( contour, layeroffset ) {

				let i = contour.length;

				while ( -- i >= 0 ) {

					const j = i;
					let k = i - 1;
					if ( k < 0 ) k = contour.length - 1;

					//console.log('b', i,j, i-1, k,vertices.length);

					for ( let s = 0, sl = ( steps + bevelSegments * 2 ); s < sl; s ++ ) {

						const slen1 = vlen * s;
						const slen2 = vlen * ( s + 1 );

						const a = layeroffset + j + slen1,
							b = layeroffset + k + slen1,
							c = layeroffset + k + slen2,
							d = layeroffset + j + slen2;

						f4( a, b, c, d );

					}

				}

			}

			function v( x, y, z ) {

				placeholder.push( x );
				placeholder.push( y );
				placeholder.push( z );

			}


			function f3( a, b, c ) {

				addVertex( a );
				addVertex( b );
				addVertex( c );

				const nextIndex = verticesArray.length / 3;
				const uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );

				addUV( uvs[ 0 ] );
				addUV( uvs[ 1 ] );
				addUV( uvs[ 2 ] );

			}

			function f4( a, b, c, d ) {

				addVertex( a );
				addVertex( b );
				addVertex( d );

				addVertex( b );
				addVertex( c );
				addVertex( d );


				const nextIndex = verticesArray.length / 3;
				const uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );

				addUV( uvs[ 0 ] );
				addUV( uvs[ 1 ] );
				addUV( uvs[ 3 ] );

				addUV( uvs[ 1 ] );
				addUV( uvs[ 2 ] );
				addUV( uvs[ 3 ] );

			}

			function addVertex( index ) {

				verticesArray.push( placeholder[ index * 3 + 0 ] );
				verticesArray.push( placeholder[ index * 3 + 1 ] );
				verticesArray.push( placeholder[ index * 3 + 2 ] );

			}


			function addUV( vector2 ) {

				uvArray.push( vector2.x );
				uvArray.push( vector2.y );

			}

		}

	}

	toJSON() {

		const data = super.toJSON();

		const shapes = this.parameters.shapes;
		const options = this.parameters.options;

		return toJSON$1( shapes, options, data );

	}

	static fromJSON( data, shapes ) {

		const geometryShapes = [];

		for ( let j = 0, jl = data.shapes.length; j < jl; j ++ ) {

			const shape = shapes[ data.shapes[ j ] ];

			geometryShapes.push( shape );

		}

		const extrudePath = data.options.extrudePath;

		if ( extrudePath !== undefined ) {

			data.options.extrudePath = new Curves[ extrudePath.type ]().fromJSON( extrudePath );

		}

		return new ExtrudeGeometry( geometryShapes, data.options );

	}

}

const WorldUVGenerator = {

	generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {

		const a_x = vertices[ indexA * 3 ];
		const a_y = vertices[ indexA * 3 + 1 ];
		const b_x = vertices[ indexB * 3 ];
		const b_y = vertices[ indexB * 3 + 1 ];
		const c_x = vertices[ indexC * 3 ];
		const c_y = vertices[ indexC * 3 + 1 ];

		return [
			new Vector2( a_x, a_y ),
			new Vector2( b_x, b_y ),
			new Vector2( c_x, c_y )
		];

	},

	generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {

		const a_x = vertices[ indexA * 3 ];
		const a_y = vertices[ indexA * 3 + 1 ];
		const a_z = vertices[ indexA * 3 + 2 ];
		const b_x = vertices[ indexB * 3 ];
		const b_y = vertices[ indexB * 3 + 1 ];
		const b_z = vertices[ indexB * 3 + 2 ];
		const c_x = vertices[ indexC * 3 ];
		const c_y = vertices[ indexC * 3 + 1 ];
		const c_z = vertices[ indexC * 3 + 2 ];
		const d_x = vertices[ indexD * 3 ];
		const d_y = vertices[ indexD * 3 + 1 ];
		const d_z = vertices[ indexD * 3 + 2 ];

		if ( Math.abs( a_y - b_y ) < Math.abs( a_x - b_x ) ) {

			return [
				new Vector2( a_x, 1 - a_z ),
				new Vector2( b_x, 1 - b_z ),
				new Vector2( c_x, 1 - c_z ),
				new Vector2( d_x, 1 - d_z )
			];

		} else {

			return [
				new Vector2( a_y, 1 - a_z ),
				new Vector2( b_y, 1 - b_z ),
				new Vector2( c_y, 1 - c_z ),
				new Vector2( d_y, 1 - d_z )
			];

		}

	}

};

function toJSON$1( shapes, options, data ) {

	data.shapes = [];

	if ( Array.isArray( shapes ) ) {

		for ( let i = 0, l = shapes.length; i < l; i ++ ) {

			const shape = shapes[ i ];

			data.shapes.push( shape.uuid );

		}

	} else {

		data.shapes.push( shapes.uuid );

	}

	if ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON();

	return data;

}

class IcosahedronGeometry extends PolyhedronGeometry {

	constructor( radius = 1, detail = 0 ) {

		const t = ( 1 + Math.sqrt( 5 ) ) / 2;

		const vertices = [
			- 1, t, 0, 	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
			0, - 1, t, 	0, 1, t,	0, - 1, - t, 	0, 1, - t,
			t, 0, - 1, 	t, 0, 1, 	- t, 0, - 1, 	- t, 0, 1
		];

		const indices = [
			0, 11, 5, 	0, 5, 1, 	0, 1, 7, 	0, 7, 10, 	0, 10, 11,
			1, 5, 9, 	5, 11, 4,	11, 10, 2,	10, 7, 6,	7, 1, 8,
			3, 9, 4, 	3, 4, 2,	3, 2, 6,	3, 6, 8,	3, 8, 9,
			4, 9, 5, 	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
		];

		super( vertices, indices, radius, detail );

		this.type = 'IcosahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	static fromJSON( data ) {

		return new IcosahedronGeometry( data.radius, data.detail );

	}

}

class LatheGeometry extends BufferGeometry {

	constructor( points = [ new Vector2( 0, 0.5 ), new Vector2( 0.5, 0 ), new Vector2( 0, - 0.5 ) ], segments = 12, phiStart = 0, phiLength = Math.PI * 2 ) {

		super();

		this.type = 'LatheGeometry';

		this.parameters = {
			points: points,
			segments: segments,
			phiStart: phiStart,
			phiLength: phiLength
		};

		segments = Math.floor( segments );

		// clamp phiLength so it's in range of [ 0, 2PI ]

		phiLength = clamp( phiLength, 0, Math.PI * 2 );

		// buffers

		const indices = [];
		const vertices = [];
		const uvs = [];
		const initNormals = [];
		const normals = [];

		// helper variables

		const inverseSegments = 1.0 / segments;
		const vertex = new Vector3();
		const uv = new Vector2();
		const normal = new Vector3();
		const curNormal = new Vector3();
		const prevNormal = new Vector3();
		let dx = 0;
		let dy = 0;

		// pre-compute normals for initial "meridian"

		for ( let j = 0; j <= ( points.length - 1 ); j ++ ) {

			switch ( j ) {

				case 0:				// special handling for 1st vertex on path

					dx = points[ j + 1 ].x - points[ j ].x;
					dy = points[ j + 1 ].y - points[ j ].y;

					normal.x = dy * 1.0;
					normal.y = - dx;
					normal.z = dy * 0.0;

					prevNormal.copy( normal );

					normal.normalize();

					initNormals.push( normal.x, normal.y, normal.z );

					break;

				case ( points.length - 1 ):	// special handling for last Vertex on path

					initNormals.push( prevNormal.x, prevNormal.y, prevNormal.z );

					break;

				default:			// default handling for all vertices in between

					dx = points[ j + 1 ].x - points[ j ].x;
					dy = points[ j + 1 ].y - points[ j ].y;

					normal.x = dy * 1.0;
					normal.y = - dx;
					normal.z = dy * 0.0;

					curNormal.copy( normal );

					normal.x += prevNormal.x;
					normal.y += prevNormal.y;
					normal.z += prevNormal.z;

					normal.normalize();

					initNormals.push( normal.x, normal.y, normal.z );

					prevNormal.copy( curNormal );

			}

		}

		// generate vertices, uvs and normals

		for ( let i = 0; i <= segments; i ++ ) {

			const phi = phiStart + i * inverseSegments * phiLength;

			const sin = Math.sin( phi );
			const cos = Math.cos( phi );

			for ( let j = 0; j <= ( points.length - 1 ); j ++ ) {

				// vertex

				vertex.x = points[ j ].x * sin;
				vertex.y = points[ j ].y;
				vertex.z = points[ j ].x * cos;

				vertices.push( vertex.x, vertex.y, vertex.z );

				// uv

				uv.x = i / segments;
				uv.y = j / ( points.length - 1 );

				uvs.push( uv.x, uv.y );

				// normal

				const x = initNormals[ 3 * j + 0 ] * sin;
				const y = initNormals[ 3 * j + 1 ];
				const z = initNormals[ 3 * j + 0 ] * cos;

				normals.push( x, y, z );

			}

		}

		// indices

		for ( let i = 0; i < segments; i ++ ) {

			for ( let j = 0; j < ( points.length - 1 ); j ++ ) {

				const base = j + i * points.length;

				const a = base;
				const b = base + points.length;
				const c = base + points.length + 1;
				const d = base + 1;

				// faces

				indices.push( a, b, d );
				indices.push( c, d, b );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );

	}

	static fromJSON( data ) {

		return new LatheGeometry( data.points, data.segments, data.phiStart, data.phiLength );

	}

}

class OctahedronGeometry extends PolyhedronGeometry {

	constructor( radius = 1, detail = 0 ) {

		const vertices = [
			1, 0, 0, 	- 1, 0, 0,	0, 1, 0,
			0, - 1, 0, 	0, 0, 1,	0, 0, - 1
		];

		const indices = [
			0, 2, 4,	0, 4, 3,	0, 3, 5,
			0, 5, 2,	1, 2, 5,	1, 5, 3,
			1, 3, 4,	1, 4, 2
		];

		super( vertices, indices, radius, detail );

		this.type = 'OctahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	static fromJSON( data ) {

		return new OctahedronGeometry( data.radius, data.detail );

	}

}

class RingGeometry extends BufferGeometry {

	constructor( innerRadius = 0.5, outerRadius = 1, thetaSegments = 8, phiSegments = 1, thetaStart = 0, thetaLength = Math.PI * 2 ) {

		super();

		this.type = 'RingGeometry';

		this.parameters = {
			innerRadius: innerRadius,
			outerRadius: outerRadius,
			thetaSegments: thetaSegments,
			phiSegments: phiSegments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		thetaSegments = Math.max( 3, thetaSegments );
		phiSegments = Math.max( 1, phiSegments );

		// buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		// some helper variables

		let radius = innerRadius;
		const radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );
		const vertex = new Vector3();
		const uv = new Vector2();

		// generate vertices, normals and uvs

		for ( let j = 0; j <= phiSegments; j ++ ) {

			for ( let i = 0; i <= thetaSegments; i ++ ) {

				// values are generate from the inside of the ring to the outside

				const segment = thetaStart + i / thetaSegments * thetaLength;

				// vertex

				vertex.x = radius * Math.cos( segment );
				vertex.y = radius * Math.sin( segment );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				normals.push( 0, 0, 1 );

				// uv

				uv.x = ( vertex.x / outerRadius + 1 ) / 2;
				uv.y = ( vertex.y / outerRadius + 1 ) / 2;

				uvs.push( uv.x, uv.y );

			}

			// increase the radius for next row of vertices

			radius += radiusStep;

		}

		// indices

		for ( let j = 0; j < phiSegments; j ++ ) {

			const thetaSegmentLevel = j * ( thetaSegments + 1 );

			for ( let i = 0; i < thetaSegments; i ++ ) {

				const segment = i + thetaSegmentLevel;

				const a = segment;
				const b = segment + thetaSegments + 1;
				const c = segment + thetaSegments + 2;
				const d = segment + 1;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	static fromJSON( data ) {

		return new RingGeometry( data.innerRadius, data.outerRadius, data.thetaSegments, data.phiSegments, data.thetaStart, data.thetaLength );

	}

}

class ShapeGeometry extends BufferGeometry {

	constructor( shapes = new Shape( [ new Vector2( 0, 0.5 ), new Vector2( - 0.5, - 0.5 ), new Vector2( 0.5, - 0.5 ) ] ), curveSegments = 12 ) {

		super();
		this.type = 'ShapeGeometry';

		this.parameters = {
			shapes: shapes,
			curveSegments: curveSegments
		};

		// buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		// helper variables

		let groupStart = 0;
		let groupCount = 0;

		// allow single and array values for "shapes" parameter

		if ( Array.isArray( shapes ) === false ) {

			addShape( shapes );

		} else {

			for ( let i = 0; i < shapes.length; i ++ ) {

				addShape( shapes[ i ] );

				this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support

				groupStart += groupCount;
				groupCount = 0;

			}

		}

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );


		// helper functions

		function addShape( shape ) {

			const indexOffset = vertices.length / 3;
			const points = shape.extractPoints( curveSegments );

			let shapeVertices = points.shape;
			const shapeHoles = points.holes;

			// check direction of vertices

			if ( ShapeUtils.isClockWise( shapeVertices ) === false ) {

				shapeVertices = shapeVertices.reverse();

			}

			for ( let i = 0, l = shapeHoles.length; i < l; i ++ ) {

				const shapeHole = shapeHoles[ i ];

				if ( ShapeUtils.isClockWise( shapeHole ) === true ) {

					shapeHoles[ i ] = shapeHole.reverse();

				}

			}

			const faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );

			// join vertices of inner and outer paths to a single array

			for ( let i = 0, l = shapeHoles.length; i < l; i ++ ) {

				const shapeHole = shapeHoles[ i ];
				shapeVertices = shapeVertices.concat( shapeHole );

			}

			// vertices, normals, uvs

			for ( let i = 0, l = shapeVertices.length; i < l; i ++ ) {

				const vertex = shapeVertices[ i ];

				vertices.push( vertex.x, vertex.y, 0 );
				normals.push( 0, 0, 1 );
				uvs.push( vertex.x, vertex.y ); // world uvs

			}

			// incides

			for ( let i = 0, l = faces.length; i < l; i ++ ) {

				const face = faces[ i ];

				const a = face[ 0 ] + indexOffset;
				const b = face[ 1 ] + indexOffset;
				const c = face[ 2 ] + indexOffset;

				indices.push( a, b, c );
				groupCount += 3;

			}

		}

	}

	toJSON() {

		const data = super.toJSON();

		const shapes = this.parameters.shapes;

		return toJSON( shapes, data );

	}

	static fromJSON( data, shapes ) {

		const geometryShapes = [];

		for ( let j = 0, jl = data.shapes.length; j < jl; j ++ ) {

			const shape = shapes[ data.shapes[ j ] ];

			geometryShapes.push( shape );

		}

		return new ShapeGeometry( geometryShapes, data.curveSegments );

	}

}

function toJSON( shapes, data ) {

	data.shapes = [];

	if ( Array.isArray( shapes ) ) {

		for ( let i = 0, l = shapes.length; i < l; i ++ ) {

			const shape = shapes[ i ];

			data.shapes.push( shape.uuid );

		}

	} else {

		data.shapes.push( shapes.uuid );

	}

	return data;

}

class SphereGeometry extends BufferGeometry {

	constructor( radius = 1, widthSegments = 32, heightSegments = 16, phiStart = 0, phiLength = Math.PI * 2, thetaStart = 0, thetaLength = Math.PI ) {

		super();
		this.type = 'SphereGeometry';

		this.parameters = {
			radius: radius,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			phiStart: phiStart,
			phiLength: phiLength,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		widthSegments = Math.max( 3, Math.floor( widthSegments ) );
		heightSegments = Math.max( 2, Math.floor( heightSegments ) );

		const thetaEnd = Math.min( thetaStart + thetaLength, Math.PI );

		let index = 0;
		const grid = [];

		const vertex = new Vector3();
		const normal = new Vector3();

		// buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		// generate vertices, normals and uvs

		for ( let iy = 0; iy <= heightSegments; iy ++ ) {

			const verticesRow = [];

			const v = iy / heightSegments;

			// special case for the poles

			let uOffset = 0;

			if ( iy == 0 && thetaStart == 0 ) {

				uOffset = 0.5 / widthSegments;

			} else if ( iy == heightSegments && thetaEnd == Math.PI ) {

				uOffset = - 0.5 / widthSegments;

			}

			for ( let ix = 0; ix <= widthSegments; ix ++ ) {

				const u = ix / widthSegments;

				// vertex

				vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
				vertex.y = radius * Math.cos( thetaStart + v * thetaLength );
				vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				normal.copy( vertex ).normalize();
				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( u + uOffset, 1 - v );

				verticesRow.push( index ++ );

			}

			grid.push( verticesRow );

		}

		// indices

		for ( let iy = 0; iy < heightSegments; iy ++ ) {

			for ( let ix = 0; ix < widthSegments; ix ++ ) {

				const a = grid[ iy ][ ix + 1 ];
				const b = grid[ iy ][ ix ];
				const c = grid[ iy + 1 ][ ix ];
				const d = grid[ iy + 1 ][ ix + 1 ];

				if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );
				if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	static fromJSON( data ) {

		return new SphereGeometry( data.radius, data.widthSegments, data.heightSegments, data.phiStart, data.phiLength, data.thetaStart, data.thetaLength );

	}

}

class TetrahedronGeometry extends PolyhedronGeometry {

	constructor( radius = 1, detail = 0 ) {

		const vertices = [
			1, 1, 1, 	- 1, - 1, 1, 	- 1, 1, - 1, 	1, - 1, - 1
		];

		const indices = [
			2, 1, 0, 	0, 3, 2,	1, 3, 0,	2, 3, 1
		];

		super( vertices, indices, radius, detail );

		this.type = 'TetrahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	static fromJSON( data ) {

		return new TetrahedronGeometry( data.radius, data.detail );

	}

}

class TorusGeometry extends BufferGeometry {

	constructor( radius = 1, tube = 0.4, radialSegments = 8, tubularSegments = 6, arc = Math.PI * 2 ) {

		super();
		this.type = 'TorusGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			radialSegments: radialSegments,
			tubularSegments: tubularSegments,
			arc: arc
		};

		radialSegments = Math.floor( radialSegments );
		tubularSegments = Math.floor( tubularSegments );

		// buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		// helper variables

		const center = new Vector3();
		const vertex = new Vector3();
		const normal = new Vector3();

		// generate vertices, normals and uvs

		for ( let j = 0; j <= radialSegments; j ++ ) {

			for ( let i = 0; i <= tubularSegments; i ++ ) {

				const u = i / tubularSegments * arc;
				const v = j / radialSegments * Math.PI * 2;

				// vertex

				vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );
				vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );
				vertex.z = tube * Math.sin( v );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				center.x = radius * Math.cos( u );
				center.y = radius * Math.sin( u );
				normal.subVectors( vertex, center ).normalize();

				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( i / tubularSegments );
				uvs.push( j / radialSegments );

			}

		}

		// generate indices

		for ( let j = 1; j <= radialSegments; j ++ ) {

			for ( let i = 1; i <= tubularSegments; i ++ ) {

				// indices

				const a = ( tubularSegments + 1 ) * j + i - 1;
				const b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;
				const c = ( tubularSegments + 1 ) * ( j - 1 ) + i;
				const d = ( tubularSegments + 1 ) * j + i;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	static fromJSON( data ) {

		return new TorusGeometry( data.radius, data.tube, data.radialSegments, data.tubularSegments, data.arc );

	}

}

class TorusKnotGeometry extends BufferGeometry {

	constructor( radius = 1, tube = 0.4, tubularSegments = 64, radialSegments = 8, p = 2, q = 3 ) {

		super();
		this.type = 'TorusKnotGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			tubularSegments: tubularSegments,
			radialSegments: radialSegments,
			p: p,
			q: q
		};

		tubularSegments = Math.floor( tubularSegments );
		radialSegments = Math.floor( radialSegments );

		// buffers

		const indices = [];
		const vertices = [];
		const normals = [];
		const uvs = [];

		// helper variables

		const vertex = new Vector3();
		const normal = new Vector3();

		const P1 = new Vector3();
		const P2 = new Vector3();

		const B = new Vector3();
		const T = new Vector3();
		const N = new Vector3();

		// generate vertices, normals and uvs

		for ( let i = 0; i <= tubularSegments; ++ i ) {

			// the radian "u" is used to calculate the position on the torus curve of the current tubular segement

			const u = i / tubularSegments * p * Math.PI * 2;

			// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
			// these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions

			calculatePositionOnCurve( u, p, q, radius, P1 );
			calculatePositionOnCurve( u + 0.01, p, q, radius, P2 );

			// calculate orthonormal basis

			T.subVectors( P2, P1 );
			N.addVectors( P2, P1 );
			B.crossVectors( T, N );
			N.crossVectors( B, T );

			// normalize B, N. T can be ignored, we don't use it

			B.normalize();
			N.normalize();

			for ( let j = 0; j <= radialSegments; ++ j ) {

				// now calculate the vertices. they are nothing more than an extrusion of the torus curve.
				// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.

				const v = j / radialSegments * Math.PI * 2;
				const cx = - tube * Math.cos( v );
				const cy = tube * Math.sin( v );

				// now calculate the final vertex position.
				// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve

				vertex.x = P1.x + ( cx * N.x + cy * B.x );
				vertex.y = P1.y + ( cx * N.y + cy * B.y );
				vertex.z = P1.z + ( cx * N.z + cy * B.z );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)

				normal.subVectors( vertex, P1 ).normalize();

				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( i / tubularSegments );
				uvs.push( j / radialSegments );

			}

		}

		// generate indices

		for ( let j = 1; j <= tubularSegments; j ++ ) {

			for ( let i = 1; i <= radialSegments; i ++ ) {

				// indices

				const a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
				const b = ( radialSegments + 1 ) * j + ( i - 1 );
				const c = ( radialSegments + 1 ) * j + i;
				const d = ( radialSegments + 1 ) * ( j - 1 ) + i;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		// this function calculates the current position on the torus curve

		function calculatePositionOnCurve( u, p, q, radius, position ) {

			const cu = Math.cos( u );
			const su = Math.sin( u );
			const quOverP = q / p * u;
			const cs = Math.cos( quOverP );

			position.x = radius * ( 2 + cs ) * 0.5 * cu;
			position.y = radius * ( 2 + cs ) * su * 0.5;
			position.z = radius * Math.sin( quOverP ) * 0.5;

		}

	}

	static fromJSON( data ) {

		return new TorusKnotGeometry( data.radius, data.tube, data.tubularSegments, data.radialSegments, data.p, data.q );

	}

}

class TubeGeometry extends BufferGeometry {

	constructor( path = new QuadraticBezierCurve3( new Vector3( - 1, - 1, 0 ), new Vector3( - 1, 1, 0 ), new Vector3( 1, 1, 0 ) ), tubularSegments = 64, radius = 1, radialSegments = 8, closed = false ) {

		super();
		this.type = 'TubeGeometry';

		this.parameters = {
			path: path,
			tubularSegments: tubularSegments,
			radius: radius,
			radialSegments: radialSegments,
			closed: closed
		};

		const frames = path.computeFrenetFrames( tubularSegments, closed );

		// expose internals

		this.tangents = frames.tangents;
		this.normals = frames.normals;
		this.binormals = frames.binormals;

		// helper variables

		const vertex = new Vector3();
		const normal = new Vector3();
		const uv = new Vector2();
		let P = new Vector3();

		// buffer

		const vertices = [];
		const normals = [];
		const uvs = [];
		const indices = [];

		// create buffer data

		generateBufferData();

		// build geometry

		this.setIndex( indices );
		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		// functions

		function generateBufferData() {

			for ( let i = 0; i < tubularSegments; i ++ ) {

				generateSegment( i );

			}

			// if the geometry is not closed, generate the last row of vertices and normals
			// at the regular position on the given path
			//
			// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)

			generateSegment( ( closed === false ) ? tubularSegments : 0 );

			// uvs are generated in a separate function.
			// this makes it easy compute correct values for closed geometries

			generateUVs();

			// finally create faces

			generateIndices();

		}

		function generateSegment( i ) {

			// we use getPointAt to sample evenly distributed points from the given path

			P = path.getPointAt( i / tubularSegments, P );

			// retrieve corresponding normal and binormal

			const N = frames.normals[ i ];
			const B = frames.binormals[ i ];

			// generate normals and vertices for the current segment

			for ( let j = 0; j <= radialSegments; j ++ ) {

				const v = j / radialSegments * Math.PI * 2;

				const sin = Math.sin( v );
				const cos = - Math.cos( v );

				// normal

				normal.x = ( cos * N.x + sin * B.x );
				normal.y = ( cos * N.y + sin * B.y );
				normal.z = ( cos * N.z + sin * B.z );
				normal.normalize();

				normals.push( normal.x, normal.y, normal.z );

				// vertex

				vertex.x = P.x + radius * normal.x;
				vertex.y = P.y + radius * normal.y;
				vertex.z = P.z + radius * normal.z;

				vertices.push( vertex.x, vertex.y, vertex.z );

			}

		}

		function generateIndices() {

			for ( let j = 1; j <= tubularSegments; j ++ ) {

				for ( let i = 1; i <= radialSegments; i ++ ) {

					const a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
					const b = ( radialSegments + 1 ) * j + ( i - 1 );
					const c = ( radialSegments + 1 ) * j + i;
					const d = ( radialSegments + 1 ) * ( j - 1 ) + i;

					// faces

					indices.push( a, b, d );
					indices.push( b, c, d );

				}

			}

		}

		function generateUVs() {

			for ( let i = 0; i <= tubularSegments; i ++ ) {

				for ( let j = 0; j <= radialSegments; j ++ ) {

					uv.x = i / tubularSegments;
					uv.y = j / radialSegments;

					uvs.push( uv.x, uv.y );

				}

			}

		}

	}

	toJSON() {

		const data = super.toJSON();

		data.path = this.parameters.path.toJSON();

		return data;

	}

	static fromJSON( data ) {

		// This only works for built-in curves (e.g. CatmullRomCurve3).
		// User defined curves or instances of CurvePath will not be deserialized.
		return new TubeGeometry(
			new Curves[ data.path.type ]().fromJSON( data.path ),
			data.tubularSegments,
			data.radius,
			data.radialSegments,
			data.closed
		);

	}

}

class WireframeGeometry extends BufferGeometry {

	constructor( geometry = null ) {

		super();
		this.type = 'WireframeGeometry';

		this.parameters = {
			geometry: geometry
		};

		if ( geometry !== null ) {

			// buffer

			const vertices = [];
			const edges = new Set();

			// helper variables

			const start = new Vector3();
			const end = new Vector3();

			if ( geometry.index !== null ) {

				// indexed BufferGeometry

				const position = geometry.attributes.position;
				const indices = geometry.index;
				let groups = geometry.groups;

				if ( groups.length === 0 ) {

					groups = [ { start: 0, count: indices.count, materialIndex: 0 } ];

				}

				// create a data structure that contains all eges without duplicates

				for ( let o = 0, ol = groups.length; o < ol; ++ o ) {

					const group = groups[ o ];

					const groupStart = group.start;
					const groupCount = group.count;

					for ( let i = groupStart, l = ( groupStart + groupCount ); i < l; i += 3 ) {

						for ( let j = 0; j < 3; j ++ ) {

							const index1 = indices.getX( i + j );
							const index2 = indices.getX( i + ( j + 1 ) % 3 );

							start.fromBufferAttribute( position, index1 );
							end.fromBufferAttribute( position, index2 );

							if ( isUniqueEdge( start, end, edges ) === true ) {

								vertices.push( start.x, start.y, start.z );
								vertices.push( end.x, end.y, end.z );

							}

						}

					}

				}

			} else {

				// non-indexed BufferGeometry

				const position = geometry.attributes.position;

				for ( let i = 0, l = ( position.count / 3 ); i < l; i ++ ) {

					for ( let j = 0; j < 3; j ++ ) {

						// three edges per triangle, an edge is represented as (index1, index2)
						// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)

						const index1 = 3 * i + j;
						const index2 = 3 * i + ( ( j + 1 ) % 3 );

						start.fromBufferAttribute( position, index1 );
						end.fromBufferAttribute( position, index2 );

						if ( isUniqueEdge( start, end, edges ) === true ) {

							vertices.push( start.x, start.y, start.z );
							vertices.push( end.x, end.y, end.z );

						}

					}

				}

			}

			// build geometry

			this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );

		}

	}

}

function isUniqueEdge( start, end, edges ) {

	const hash1 = `${start.x},${start.y},${start.z}-${end.x},${end.y},${end.z}`;
	const hash2 = `${end.x},${end.y},${end.z}-${start.x},${start.y},${start.z}`; // coincident edge

	if ( edges.has( hash1 ) === true || edges.has( hash2 ) === true ) {

		return false;

	} else {

		edges.add( hash1, hash2 );
		return true;

	}

}

var Geometries = /*#__PURE__*/Object.freeze({
	__proto__: null,
	BoxGeometry: BoxGeometry,
	BoxBufferGeometry: BoxGeometry,
	CircleGeometry: CircleGeometry,
	CircleBufferGeometry: CircleGeometry,
	ConeGeometry: ConeGeometry,
	ConeBufferGeometry: ConeGeometry,
	CylinderGeometry: CylinderGeometry,
	CylinderBufferGeometry: CylinderGeometry,
	DodecahedronGeometry: DodecahedronGeometry,
	DodecahedronBufferGeometry: DodecahedronGeometry,
	EdgesGeometry: EdgesGeometry,
	ExtrudeGeometry: ExtrudeGeometry,
	ExtrudeBufferGeometry: ExtrudeGeometry,
	IcosahedronGeometry: IcosahedronGeometry,
	IcosahedronBufferGeometry: IcosahedronGeometry,
	LatheGeometry: LatheGeometry,
	LatheBufferGeometry: LatheGeometry,
	OctahedronGeometry: OctahedronGeometry,
	OctahedronBufferGeometry: OctahedronGeometry,
	PlaneGeometry: PlaneGeometry,
	PlaneBufferGeometry: PlaneGeometry,
	PolyhedronGeometry: PolyhedronGeometry,
	PolyhedronBufferGeometry: PolyhedronGeometry,
	RingGeometry: RingGeometry,
	RingBufferGeometry: RingGeometry,
	ShapeGeometry: ShapeGeometry,
	ShapeBufferGeometry: ShapeGeometry,
	SphereGeometry: SphereGeometry,
	SphereBufferGeometry: SphereGeometry,
	TetrahedronGeometry: TetrahedronGeometry,
	TetrahedronBufferGeometry: TetrahedronGeometry,
	TorusGeometry: TorusGeometry,
	TorusBufferGeometry: TorusGeometry,
	TorusKnotGeometry: TorusKnotGeometry,
	TorusKnotBufferGeometry: TorusKnotGeometry,
	TubeGeometry: TubeGeometry,
	TubeBufferGeometry: TubeGeometry,
	WireframeGeometry: WireframeGeometry
});

/**
 * parameters = {
 *  color: <THREE.Color>
 * }
 */

class ShadowMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'ShadowMaterial';

		this.color = new Color( 0x000000 );
		this.transparent = true;

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.color.copy( source.color );

		return this;

	}

}

ShadowMaterial.prototype.isShadowMaterial = true;

/**
 * parameters = {
 *  color: <hex>,
 *  roughness: <float>,
 *  metalness: <float>,
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissive: <hex>,
 *  emissiveIntensity: <float>
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  roughnessMap: new THREE.Texture( <Image> ),
 *
 *  metalnessMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *  envMapIntensity: <float>
 *
 *  refractionRatio: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  flatShading: <bool>
 * }
 */

class MeshStandardMaterial extends Material {

	constructor( parameters ) {

		super();

		this.defines = { 'STANDARD': '' };

		this.type = 'MeshStandardMaterial';

		this.color = new Color( 0xffffff ); // diffuse
		this.roughness = 1.0;
		this.metalness = 0.0;

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.roughnessMap = null;

		this.metalnessMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.envMapIntensity = 1.0;

		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.flatShading = false;

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.defines = { 'STANDARD': '' };

		this.color.copy( source.color );
		this.roughness = source.roughness;
		this.metalness = source.metalness;

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.roughnessMap = source.roughnessMap;

		this.metalnessMap = source.metalnessMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.envMapIntensity = source.envMapIntensity;

		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.flatShading = source.flatShading;

		return this;

	}

}

MeshStandardMaterial.prototype.isMeshStandardMaterial = true;

/**
 * parameters = {
 *  clearcoat: <float>,
 *  clearcoatMap: new THREE.Texture( <Image> ),
 *  clearcoatRoughness: <float>,
 *  clearcoatRoughnessMap: new THREE.Texture( <Image> ),
 *  clearcoatNormalScale: <Vector2>,
 *  clearcoatNormalMap: new THREE.Texture( <Image> ),
 *
 *  ior: <float>,
 *  reflectivity: <float>,
 *
 *  sheen: <float>,
 *  sheenColor: <Color>,
 *  sheenColorMap: new THREE.Texture( <Image> ),
 *  sheenRoughness: <float>,
 *  sheenRoughnessMap: new THREE.Texture( <Image> ),
 *
 *  transmission: <float>,
 *  transmissionMap: new THREE.Texture( <Image> ),
 *
 *  thickness: <float>,
 *  thicknessMap: new THREE.Texture( <Image> ),
 *  attenuationDistance: <float>,
 *  attenuationColor: <Color>,
 *
 *  specularIntensity: <float>,
 *  specularIntensityMap: new THREE.Texture( <Image> ),
 *  specularColor: <Color>,
 *  specularColorMap: new THREE.Texture( <Image> )
 * }
 */

class MeshPhysicalMaterial extends MeshStandardMaterial {

	constructor( parameters ) {

		super();

		this.defines = {

			'STANDARD': '',
			'PHYSICAL': ''

		};

		this.type = 'MeshPhysicalMaterial';

		this.clearcoatMap = null;
		this.clearcoatRoughness = 0.0;
		this.clearcoatRoughnessMap = null;
		this.clearcoatNormalScale = new Vector2( 1, 1 );
		this.clearcoatNormalMap = null;

		this.ior = 1.5;

		Object.defineProperty( this, 'reflectivity', {
			get: function () {

				return ( clamp( 2.5 * ( this.ior - 1 ) / ( this.ior + 1 ), 0, 1 ) );

			},
			set: function ( reflectivity ) {

				this.ior = ( 1 + 0.4 * reflectivity ) / ( 1 - 0.4 * reflectivity );

			}
		} );

		this.sheenColor = new Color( 0x000000 );
		this.sheenColorMap = null;
		this.sheenRoughness = 1.0;
		this.sheenRoughnessMap = null;

		this.transmissionMap = null;

		this.thickness = 0;
		this.thicknessMap = null;
		this.attenuationDistance = 0.0;
		this.attenuationColor = new Color( 1, 1, 1 );

		this.specularIntensity = 1.0;
		this.specularIntensityMap = null;
		this.specularColor = new Color( 1, 1, 1 );
		this.specularColorMap = null;

		this._sheen = 0.0;
		this._clearcoat = 0;
		this._transmission = 0;

		this.setValues( parameters );

	}

	get sheen() {

		return this._sheen;

	}

	set sheen( value ) {

		if ( this._sheen > 0 !== value > 0 ) {

			this.version ++;

		}

		this._sheen = value;

	}

	get clearcoat() {

		return this._clearcoat;

	}

	set clearcoat( value ) {

		if ( this._clearcoat > 0 !== value > 0 ) {

			this.version ++;

		}

		this._clearcoat = value;

	}

	get transmission() {

		return this._transmission;

	}

	set transmission( value ) {

		if ( this._transmission > 0 !== value > 0 ) {

			this.version ++;

		}

		this._transmission = value;

	}

	copy( source ) {

		super.copy( source );

		this.defines = {

			'STANDARD': '',
			'PHYSICAL': ''

		};

		this.clearcoat = source.clearcoat;
		this.clearcoatMap = source.clearcoatMap;
		this.clearcoatRoughness = source.clearcoatRoughness;
		this.clearcoatRoughnessMap = source.clearcoatRoughnessMap;
		this.clearcoatNormalMap = source.clearcoatNormalMap;
		this.clearcoatNormalScale.copy( source.clearcoatNormalScale );

		this.ior = source.ior;

		this.sheen = source.sheen;
		this.sheenColor.copy( source.sheenColor );
		this.sheenColorMap = source.sheenColorMap;
		this.sheenRoughness = source.sheenRoughness;
		this.sheenRoughnessMap = source.sheenRoughnessMap;

		this.transmission = source.transmission;
		this.transmissionMap = source.transmissionMap;

		this.thickness = source.thickness;
		this.thicknessMap = source.thicknessMap;
		this.attenuationDistance = source.attenuationDistance;
		this.attenuationColor.copy( source.attenuationColor );

		this.specularIntensity = source.specularIntensity;
		this.specularIntensityMap = source.specularIntensityMap;
		this.specularColor.copy( source.specularColor );
		this.specularColorMap = source.specularColorMap;

		return this;

	}

}

MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;

/**
 * parameters = {
 *  color: <hex>,
 *  specular: <hex>,
 *  shininess: <float>,
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissive: <hex>,
 *  emissiveIntensity: <float>
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  specularMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *  combine: THREE.MultiplyOperation,
 *  reflectivity: <float>,
 *  refractionRatio: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  flatShading: <bool>
 * }
 */

class MeshPhongMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'MeshPhongMaterial';

		this.color = new Color( 0xffffff ); // diffuse
		this.specular = new Color( 0x111111 );
		this.shininess = 30;

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.specularMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.flatShading = false;

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.color.copy( source.color );
		this.specular.copy( source.specular );
		this.shininess = source.shininess;

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.specularMap = source.specularMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.flatShading = source.flatShading;

		return this;

	}

}

MeshPhongMaterial.prototype.isMeshPhongMaterial = true;

/**
 * parameters = {
 *  color: <hex>,
 *
 *  map: new THREE.Texture( <Image> ),
 *  gradientMap: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissive: <hex>,
 *  emissiveIntensity: <float>
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 * }
 */

class MeshToonMaterial extends Material {

	constructor( parameters ) {

		super();

		this.defines = { 'TOON': '' };

		this.type = 'MeshToonMaterial';

		this.color = new Color( 0xffffff );

		this.map = null;
		this.gradientMap = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.alphaMap = null;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.color.copy( source.color );

		this.map = source.map;
		this.gradientMap = source.gradientMap;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.alphaMap = source.alphaMap;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		return this;

	}

}

MeshToonMaterial.prototype.isMeshToonMaterial = true;

/**
 * parameters = {
 *  opacity: <float>,
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>
 *
 *  flatShading: <bool>
 * }
 */

class MeshNormalMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'MeshNormalMaterial';

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.wireframe = false;
		this.wireframeLinewidth = 1;

		this.fog = false;

		this.flatShading = false;

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;

		this.flatShading = source.flatShading;

		return this;

	}

}

MeshNormalMaterial.prototype.isMeshNormalMaterial = true;

/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissive: <hex>,
 *  emissiveIntensity: <float>
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  specularMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *  combine: THREE.Multiply,
 *  reflectivity: <float>,
 *  refractionRatio: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 * }
 */

class MeshLambertMaterial extends Material {

	constructor( parameters ) {

		super();

		this.type = 'MeshLambertMaterial';

		this.color = new Color( 0xffffff ); // diffuse

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.specularMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.color.copy( source.color );

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.specularMap = source.specularMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		return this;

	}

}

MeshLambertMaterial.prototype.isMeshLambertMaterial = true;

/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  matcap: new THREE.Texture( <Image> ),
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  flatShading: <bool>
 * }
 */

class MeshMatcapMaterial extends Material {

	constructor( parameters ) {

		super();

		this.defines = { 'MATCAP': '' };

		this.type = 'MeshMatcapMaterial';

		this.color = new Color( 0xffffff ); // diffuse

		this.matcap = null;

		this.map = null;

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalMapType = TangentSpaceNormalMap;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.alphaMap = null;

		this.flatShading = false;

		this.setValues( parameters );

	}


	copy( source ) {

		super.copy( source );

		this.defines = { 'MATCAP': '' };

		this.color.copy( source.color );

		this.matcap = source.matcap;

		this.map = source.map;

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalMapType = source.normalMapType;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.alphaMap = source.alphaMap;

		this.flatShading = source.flatShading;

		return this;

	}

}

MeshMatcapMaterial.prototype.isMeshMatcapMaterial = true;

/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  linewidth: <float>,
 *
 *  scale: <float>,
 *  dashSize: <float>,
 *  gapSize: <float>
 * }
 */

class LineDashedMaterial extends LineBasicMaterial {

	constructor( parameters ) {

		super();

		this.type = 'LineDashedMaterial';

		this.scale = 1;
		this.dashSize = 3;
		this.gapSize = 1;

		this.setValues( parameters );

	}

	copy( source ) {

		super.copy( source );

		this.scale = source.scale;
		this.dashSize = source.dashSize;
		this.gapSize = source.gapSize;

		return this;

	}

}

LineDashedMaterial.prototype.isLineDashedMaterial = true;

var Materials = /*#__PURE__*/Object.freeze({
	__proto__: null,
	ShadowMaterial: ShadowMaterial,
	SpriteMaterial: SpriteMaterial,
	RawShaderMaterial: RawShaderMaterial,
	ShaderMaterial: ShaderMaterial,
	PointsMaterial: PointsMaterial,
	MeshPhysicalMaterial: MeshPhysicalMaterial,
	MeshStandardMaterial: MeshStandardMaterial,
	MeshPhongMaterial: MeshPhongMaterial,
	MeshToonMaterial: MeshToonMaterial,
	MeshNormalMaterial: MeshNormalMaterial,
	MeshLambertMaterial: MeshLambertMaterial,
	MeshDepthMaterial: MeshDepthMaterial,
	MeshDistanceMaterial: MeshDistanceMaterial,
	MeshBasicMaterial: MeshBasicMaterial,
	MeshMatcapMaterial: MeshMatcapMaterial,
	LineDashedMaterial: LineDashedMaterial,
	LineBasicMaterial: LineBasicMaterial,
	Material: Material
});

const AnimationUtils = {

	// same as Array.prototype.slice, but also works on typed arrays
	arraySlice: function ( array, from, to ) {

		if ( AnimationUtils.isTypedArray( array ) ) {

			// in ios9 array.subarray(from, undefined) will return empty array
			// but array.subarray(from) or array.subarray(from, len) is correct
			return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );

		}

		return array.slice( from, to );

	},

	// converts an array to a specific type
	convertArray: function ( array, type, forceClone ) {

		if ( ! array || // let 'undefined' and 'null' pass
			! forceClone && array.constructor === type ) return array;

		if ( typeof type.BYTES_PER_ELEMENT === 'number' ) {

			return new type( array ); // create typed array

		}

		return Array.prototype.slice.call( array ); // create Array

	},

	isTypedArray: function ( object ) {

		return ArrayBuffer.isView( object ) &&
			! ( object instanceof DataView );

	},

	// returns an array by which times and values can be sorted
	getKeyframeOrder: function ( times ) {

		function compareTime( i, j ) {

			return times[ i ] - times[ j ];

		}

		const n = times.length;
		const result = new Array( n );
		for ( let i = 0; i !== n; ++ i ) result[ i ] = i;

		result.sort( compareTime );

		return result;

	},

	// uses the array previously returned by 'getKeyframeOrder' to sort data
	sortedArray: function ( values, stride, order ) {

		const nValues = values.length;
		const result = new values.constructor( nValues );

		for ( let i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {

			const srcOffset = order[ i ] * stride;

			for ( let j = 0; j !== stride; ++ j ) {

				result[ dstOffset ++ ] = values[ srcOffset + j ];

			}

		}

		return result;

	},

	// function for parsing AOS keyframe formats
	flattenJSON: function ( jsonKeys, times, values, valuePropertyName ) {

		let i = 1, key = jsonKeys[ 0 ];

		while ( key !== undefined && key[ valuePropertyName ] === undefined ) {

			key = jsonKeys[ i ++ ];

		}

		if ( key === undefined ) return; // no data

		let value = key[ valuePropertyName ];
		if ( value === undefined ) return; // no data

		if ( Array.isArray( value ) ) {

			do {

				value = key[ valuePropertyName ];

				if ( value !== undefined ) {

					times.push( key.time );
					values.push.apply( values, value ); // push all elements

				}

				key = jsonKeys[ i ++ ];

			} while ( key !== undefined );

		} else if ( value.toArray !== undefined ) {

			// ...assume THREE.Math-ish

			do {

				value = key[ valuePropertyName ];

				if ( value !== undefined ) {

					times.push( key.time );
					value.toArray( values, values.length );

				}

				key = jsonKeys[ i ++ ];

			} while ( key !== undefined );

		} else {

			// otherwise push as-is

			do {

				value = key[ valuePropertyName ];

				if ( value !== undefined ) {

					times.push( key.time );
					values.push( value );

				}

				key = jsonKeys[ i ++ ];

			} while ( key !== undefined );

		}

	},

	subclip: function ( sourceClip, name, startFrame, endFrame, fps = 30 ) {

		const clip = sourceClip.clone();

		clip.name = name;

		const tracks = [];

		for ( let i = 0; i < clip.tracks.length; ++ i ) {

			const track = clip.tracks[ i ];
			const valueSize = track.getValueSize();

			const times = [];
			const values = [];

			for ( let j = 0; j < track.times.length; ++ j ) {

				const frame = track.times[ j ] * fps;

				if ( frame < startFrame || frame >= endFrame ) continue;

				times.push( track.times[ j ] );

				for ( let k = 0; k < valueSize; ++ k ) {

					values.push( track.values[ j * valueSize + k ] );

				}

			}

			if ( times.length === 0 ) continue;

			track.times = AnimationUtils.convertArray( times, track.times.constructor );
			track.values = AnimationUtils.convertArray( values, track.values.constructor );

			tracks.push( track );

		}

		clip.tracks = tracks;

		// find minimum .times value across all tracks in the trimmed clip

		let minStartTime = Infinity;

		for ( let i = 0; i < clip.tracks.length; ++ i ) {

			if ( minStartTime > clip.tracks[ i ].times[ 0 ] ) {

				minStartTime = clip.tracks[ i ].times[ 0 ];

			}

		}

		// shift all tracks such that clip begins at t=0

		for ( let i = 0; i < clip.tracks.length; ++ i ) {

			clip.tracks[ i ].shift( - 1 * minStartTime );

		}

		clip.resetDuration();

		return clip;

	},

	makeClipAdditive: function ( targetClip, referenceFrame = 0, referenceClip = targetClip, fps = 30 ) {

		if ( fps <= 0 ) fps = 30;

		const numTracks = referenceClip.tracks.length;
		const referenceTime = referenceFrame / fps;

		// Make each track's values relative to the values at the reference frame
		for ( let i = 0; i < numTracks; ++ i ) {

			const referenceTrack = referenceClip.tracks[ i ];
			const referenceTrackType = referenceTrack.ValueTypeName;

			// Skip this track if it's non-numeric
			if ( referenceTrackType === 'bool' || referenceTrackType === 'string' ) continue;

			// Find the track in the target clip whose name and type matches the reference track
			const targetTrack = targetClip.tracks.find( function ( track ) {

				return track.name === referenceTrack.name
					&& track.ValueTypeName === referenceTrackType;

			} );

			if ( targetTrack === undefined ) continue;

			let referenceOffset = 0;
			const referenceValueSize = referenceTrack.getValueSize();

			if ( referenceTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline ) {

				referenceOffset = referenceValueSize / 3;

			}

			let targetOffset = 0;
			const targetValueSize = targetTrack.getValueSize();

			if ( targetTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline ) {

				targetOffset = targetValueSize / 3;

			}

			const lastIndex = referenceTrack.times.length - 1;
			let referenceValue;

			// Find the value to subtract out of the track
			if ( referenceTime <= referenceTrack.times[ 0 ] ) {

				// Reference frame is earlier than the first keyframe, so just use the first keyframe
				const startIndex = referenceOffset;
				const endIndex = referenceValueSize - referenceOffset;
				referenceValue = AnimationUtils.arraySlice( referenceTrack.values, startIndex, endIndex );

			} else if ( referenceTime >= referenceTrack.times[ lastIndex ] ) {

				// Reference frame is after the last keyframe, so just use the last keyframe
				const startIndex = lastIndex * referenceValueSize + referenceOffset;
				const endIndex = startIndex + referenceValueSize - referenceOffset;
				referenceValue = AnimationUtils.arraySlice( referenceTrack.values, startIndex, endIndex );

			} else {

				// Interpolate to the reference value
				const interpolant = referenceTrack.createInterpolant();
				const startIndex = referenceOffset;
				const endIndex = referenceValueSize - referenceOffset;
				interpolant.evaluate( referenceTime );
				referenceValue = AnimationUtils.arraySlice( interpolant.resultBuffer, startIndex, endIndex );

			}

			// Conjugate the quaternion
			if ( referenceTrackType === 'quaternion' ) {

				const referenceQuat = new Quaternion().fromArray( referenceValue ).normalize().conjugate();
				referenceQuat.toArray( referenceValue );

			}

			// Subtract the reference value from all of the track values

			const numTimes = targetTrack.times.length;
			for ( let j = 0; j < numTimes; ++ j ) {

				const valueStart = j * targetValueSize + targetOffset;

				if ( referenceTrackType === 'quaternion' ) {

					// Multiply the conjugate for quaternion track types
					Quaternion.multiplyQuaternionsFlat(
						targetTrack.values,
						valueStart,
						referenceValue,
						0,
						targetTrack.values,
						valueStart
					);

				} else {

					const valueEnd = targetValueSize - targetOffset * 2;

					// Subtract each value for all other numeric track types
					for ( let k = 0; k < valueEnd; ++ k ) {

						targetTrack.values[ valueStart + k ] -= referenceValue[ k ];

					}

				}

			}

		}

		targetClip.blendMode = AdditiveAnimationBlendMode;

		return targetClip;

	}

};

/**
 * Abstract base class of interpolants over parametric samples.
 *
 * The parameter domain is one dimensional, typically the time or a path
 * along a curve defined by the data.
 *
 * The sample values can have any dimensionality and derived classes may
 * apply special interpretations to the data.
 *
 * This class provides the interval seek in a Template Method, deferring
 * the actual interpolation to derived classes.
 *
 * Time complexity is O(1) for linear access crossing at most two points
 * and O(log N) for random access, where N is the number of positions.
 *
 * References:
 *
 * 		http://www.oodesign.com/template-method-pattern.html
 *
 */

class Interpolant {

	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		this.parameterPositions = parameterPositions;
		this._cachedIndex = 0;

		this.resultBuffer = resultBuffer !== undefined ?
			resultBuffer : new sampleValues.constructor( sampleSize );
		this.sampleValues = sampleValues;
		this.valueSize = sampleSize;

		this.settings = null;
		this.DefaultSettings_ = {};

	}

	evaluate( t ) {

		const pp = this.parameterPositions;
		let i1 = this._cachedIndex,
			t1 = pp[ i1 ],
			t0 = pp[ i1 - 1 ];

		validate_interval: {

			seek: {

				let right;

				linear_scan: {

					//- See http://jsperf.com/comparison-to-undefined/3
					//- slower code:
					//-
					//- 				if ( t >= t1 || t1 === undefined ) {
					forward_scan: if ( ! ( t < t1 ) ) {

						for ( let giveUpAt = i1 + 2; ; ) {

							if ( t1 === undefined ) {

								if ( t < t0 ) break forward_scan;

								// after end

								i1 = pp.length;
								this._cachedIndex = i1;
								return this.afterEnd_( i1 - 1, t, t0 );

							}

							if ( i1 === giveUpAt ) break; // this loop

							t0 = t1;
							t1 = pp[ ++ i1 ];

							if ( t < t1 ) {

								// we have arrived at the sought interval
								break seek;

							}

						}

						// prepare binary search on the right side of the index
						right = pp.length;
						break linear_scan;

					}

					//- slower code:
					//-					if ( t < t0 || t0 === undefined ) {
					if ( ! ( t >= t0 ) ) {

						// looping?

						const t1global = pp[ 1 ];

						if ( t < t1global ) {

							i1 = 2; // + 1, using the scan for the details
							t0 = t1global;

						}

						// linear reverse scan

						for ( let giveUpAt = i1 - 2; ; ) {

							if ( t0 === undefined ) {

								// before start

								this._cachedIndex = 0;
								return this.beforeStart_( 0, t, t1 );

							}

							if ( i1 === giveUpAt ) break; // this loop

							t1 = t0;
							t0 = pp[ -- i1 - 1 ];

							if ( t >= t0 ) {

								// we have arrived at the sought interval
								break seek;

							}

						}

						// prepare binary search on the left side of the index
						right = i1;
						i1 = 0;
						break linear_scan;

					}

					// the interval is valid

					break validate_interval;

				} // linear scan

				// binary search

				while ( i1 < right ) {

					const mid = ( i1 + right ) >>> 1;

					if ( t < pp[ mid ] ) {

						right = mid;

					} else {

						i1 = mid + 1;

					}

				}

				t1 = pp[ i1 ];
				t0 = pp[ i1 - 1 ];

				// check boundary cases, again

				if ( t0 === undefined ) {

					this._cachedIndex = 0;
					return this.beforeStart_( 0, t, t1 );

				}

				if ( t1 === undefined ) {

					i1 = pp.length;
					this._cachedIndex = i1;
					return this.afterEnd_( i1 - 1, t0, t );

				}

			} // seek

			this._cachedIndex = i1;

			this.intervalChanged_( i1, t0, t1 );

		} // validate_interval

		return this.interpolate_( i1, t0, t, t1 );

	}

	getSettings_() {

		return this.settings || this.DefaultSettings_;

	}

	copySampleValue_( index ) {

		// copies a sample value to the result buffer

		const result = this.resultBuffer,
			values = this.sampleValues,
			stride = this.valueSize,
			offset = index * stride;

		for ( let i = 0; i !== stride; ++ i ) {

			result[ i ] = values[ offset + i ];

		}

		return result;

	}

	// Template methods for derived classes:

	interpolate_( /* i1, t0, t, t1 */ ) {

		throw new Error( 'call to abstract method' );
		// implementations shall return this.resultBuffer

	}

	intervalChanged_( /* i1, t0, t1 */ ) {

		// empty

	}

}

// ALIAS DEFINITIONS

Interpolant.prototype.beforeStart_ = Interpolant.prototype.copySampleValue_;
Interpolant.prototype.afterEnd_ = Interpolant.prototype.copySampleValue_;

/**
 * Fast and simple cubic spline interpolant.
 *
 * It was derived from a Hermitian construction setting the first derivative
 * at each sample position to the linear slope between neighboring positions
 * over their parameter interval.
 */

class CubicInterpolant extends Interpolant {

	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		super( parameterPositions, sampleValues, sampleSize, resultBuffer );

		this._weightPrev = - 0;
		this._offsetPrev = - 0;
		this._weightNext = - 0;
		this._offsetNext = - 0;

		this.DefaultSettings_ = {

			endingStart: ZeroCurvatureEnding,
			endingEnd: ZeroCurvatureEnding

		};

	}

	intervalChanged_( i1, t0, t1 ) {

		const pp = this.parameterPositions;
		let iPrev = i1 - 2,
			iNext = i1 + 1,

			tPrev = pp[ iPrev ],
			tNext = pp[ iNext ];

		if ( tPrev === undefined ) {

			switch ( this.getSettings_().endingStart ) {

				case ZeroSlopeEnding:

					// f'(t0) = 0
					iPrev = i1;
					tPrev = 2 * t0 - t1;

					break;

				case WrapAroundEnding:

					// use the other end of the curve
					iPrev = pp.length - 2;
					tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];

					break;

				default: // ZeroCurvatureEnding

					// f''(t0) = 0 a.k.a. Natural Spline
					iPrev = i1;
					tPrev = t1;

			}

		}

		if ( tNext === undefined ) {

			switch ( this.getSettings_().endingEnd ) {

				case ZeroSlopeEnding:

					// f'(tN) = 0
					iNext = i1;
					tNext = 2 * t1 - t0;

					break;

				case WrapAroundEnding:

					// use the other end of the curve
					iNext = 1;
					tNext = t1 + pp[ 1 ] - pp[ 0 ];

					break;

				default: // ZeroCurvatureEnding

					// f''(tN) = 0, a.k.a. Natural Spline
					iNext = i1 - 1;
					tNext = t0;

			}

		}

		const halfDt = ( t1 - t0 ) * 0.5,
			stride = this.valueSize;

		this._weightPrev = halfDt / ( t0 - tPrev );
		this._weightNext = halfDt / ( tNext - t1 );
		this._offsetPrev = iPrev * stride;
		this._offsetNext = iNext * stride;

	}

	interpolate_( i1, t0, t, t1 ) {

		const result = this.resultBuffer,
			values = this.sampleValues,
			stride = this.valueSize,

			o1 = i1 * stride,		o0 = o1 - stride,
			oP = this._offsetPrev, 	oN = this._offsetNext,
			wP = this._weightPrev,	wN = this._weightNext,

			p = ( t - t0 ) / ( t1 - t0 ),
			pp = p * p,
			ppp = pp * p;

		// evaluate polynomials

		const sP = - wP * ppp + 2 * wP * pp - wP * p;
		const s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1;
		const s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;
		const sN = wN * ppp - wN * pp;

		// combine data linearly

		for ( let i = 0; i !== stride; ++ i ) {

			result[ i ] =
					sP * values[ oP + i ] +
					s0 * values[ o0 + i ] +
					s1 * values[ o1 + i ] +
					sN * values[ oN + i ];

		}

		return result;

	}

}

class LinearInterpolant extends Interpolant {

	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		super( parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	interpolate_( i1, t0, t, t1 ) {

		const result = this.resultBuffer,
			values = this.sampleValues,
			stride = this.valueSize,

			offset1 = i1 * stride,
			offset0 = offset1 - stride,

			weight1 = ( t - t0 ) / ( t1 - t0 ),
			weight0 = 1 - weight1;

		for ( let i = 0; i !== stride; ++ i ) {

			result[ i ] =
					values[ offset0 + i ] * weight0 +
					values[ offset1 + i ] * weight1;

		}

		return result;

	}

}

/**
 *
 * Interpolant that evaluates to the sample value at the position preceeding
 * the parameter.
 */

class DiscreteInterpolant extends Interpolant {

	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		super( parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	interpolate_( i1 /*, t0, t, t1 */ ) {

		return this.copySampleValue_( i1 - 1 );

	}

}

class KeyframeTrack {

	constructor( name, times, values, interpolation ) {

		if ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' );
		if ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name );

		this.name = name;

		this.times = AnimationUtils.convertArray( times, this.TimeBufferType );
		this.values = AnimationUtils.convertArray( values, this.ValueBufferType );

		this.setInterpolation( interpolation || this.DefaultInterpolation );

	}

	// Serialization (in static context, because of constructor invocation
	// and automatic invocation of .toJSON):

	static toJSON( track ) {

		const trackType = track.constructor;

		let json;

		// derived classes can define a static toJSON method
		if ( trackType.toJSON !== this.toJSON ) {

			json = trackType.toJSON( track );

		} else {

			// by default, we assume the data can be serialized as-is
			json = {

				'name': track.name,
				'times': AnimationUtils.convertArray( track.times, Array ),
				'values': AnimationUtils.convertArray( track.values, Array )

			};

			const interpolation = track.getInterpolation();

			if ( interpolation !== track.DefaultInterpolation ) {

				json.interpolation = interpolation;

			}

		}

		json.type = track.ValueTypeName; // mandatory

		return json;

	}

	InterpolantFactoryMethodDiscrete( result ) {

		return new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result );

	}

	InterpolantFactoryMethodLinear( result ) {

		return new LinearInterpolant( this.times, this.values, this.getValueSize(), result );

	}

	InterpolantFactoryMethodSmooth( result ) {

		return new CubicInterpolant( this.times, this.values, this.getValueSize(), result );

	}

	setInterpolation( interpolation ) {

		let factoryMethod;

		switch ( interpolation ) {

			case InterpolateDiscrete:

				factoryMethod = this.InterpolantFactoryMethodDiscrete;

				break;

			case InterpolateLinear:

				factoryMethod = this.InterpolantFactoryMethodLinear;

				break;

			case InterpolateSmooth:

				factoryMethod = this.InterpolantFactoryMethodSmooth;

				break;

		}

		if ( factoryMethod === undefined ) {

			const message = 'unsupported interpolation for ' +
				this.ValueTypeName + ' keyframe track named ' + this.name;

			if ( this.createInterpolant === undefined ) {

				// fall back to default, unless the default itself is messed up
				if ( interpolation !== this.DefaultInterpolation ) {

					this.setInterpolation( this.DefaultInterpolation );

				} else {

					throw new Error( message ); // fatal, in this case

				}

			}

			console.warn( 'THREE.KeyframeTrack:', message );
			return this;

		}

		this.createInterpolant = factoryMethod;

		return this;

	}

	getInterpolation() {

		switch ( this.createInterpolant ) {

			case this.InterpolantFactoryMethodDiscrete:

				return InterpolateDiscrete;

			case this.InterpolantFactoryMethodLinear:

				return InterpolateLinear;

			case this.InterpolantFactoryMethodSmooth:

				return InterpolateSmooth;

		}

	}

	getValueSize() {

		return this.values.length / this.times.length;

	}

	// move all keyframes either forwards or backwards in time
	shift( timeOffset ) {

		if ( timeOffset !== 0.0 ) {

			const times = this.times;

			for ( let i = 0, n = times.length; i !== n; ++ i ) {

				times[ i ] += timeOffset;

			}

		}

		return this;

	}

	// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
	scale( timeScale ) {

		if ( timeScale !== 1.0 ) {

			const times = this.times;

			for ( let i = 0, n = times.length; i !== n; ++ i ) {

				times[ i ] *= timeScale;

			}

		}

		return this;

	}

	// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
	// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
	trim( startTime, endTime ) {

		const times = this.times,
			nKeys = times.length;

		let from = 0,
			to = nKeys - 1;

		while ( from !== nKeys && times[ from ] < startTime ) {

			++ from;

		}

		while ( to !== - 1 && times[ to ] > endTime ) {

			-- to;

		}

		++ to; // inclusive -> exclusive bound

		if ( from !== 0 || to !== nKeys ) {

			// empty tracks are forbidden, so keep at least one keyframe
			if ( from >= to ) {

				to = Math.max( to, 1 );
				from = to - 1;

			}

			const stride = this.getValueSize();
			this.times = AnimationUtils.arraySlice( times, from, to );
			this.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride );

		}

		return this;

	}

	// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
	validate() {

		let valid = true;

		const valueSize = this.getValueSize();
		if ( valueSize - Math.floor( valueSize ) !== 0 ) {

			console.error( 'THREE.KeyframeTrack: Invalid value size in track.', this );
			valid = false;

		}

		const times = this.times,
			values = this.values,

			nKeys = times.length;

		if ( nKeys === 0 ) {

			console.error( 'THREE.KeyframeTrack: Track is empty.', this );
			valid = false;

		}

		let prevTime = null;

		for ( let i = 0; i !== nKeys; i ++ ) {

			const currTime = times[ i ];

			if ( typeof currTime === 'number' && isNaN( currTime ) ) {

				console.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime );
				valid = false;
				break;

			}

			if ( prevTime !== null && prevTime > currTime ) {

				console.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime );
				valid = false;
				break;

			}

			prevTime = currTime;

		}

		if ( values !== undefined ) {

			if ( AnimationUtils.isTypedArray( values ) ) {

				for ( let i = 0, n = values.length; i !== n; ++ i ) {

					const value = values[ i ];

					if ( isNaN( value ) ) {

						console.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value );
						valid = false;
						break;

					}

				}

			}

		}

		return valid;

	}

	// removes equivalent sequential keys as common in morph target sequences
	// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
	optimize() {

		// times or values may be shared with other tracks, so overwriting is unsafe
		const times = AnimationUtils.arraySlice( this.times ),
			values = AnimationUtils.arraySlice( this.values ),
			stride = this.getValueSize(),

			smoothInterpolation = this.getInterpolation() === InterpolateSmooth,

			lastIndex = times.length - 1;

		let writeIndex = 1;

		for ( let i = 1; i < lastIndex; ++ i ) {

			let keep = false;

			const time = times[ i ];
			const timeNext = times[ i + 1 ];

			// remove adjacent keyframes scheduled at the same time

			if ( time !== timeNext && ( i !== 1 || time !== times[ 0 ] ) ) {

				if ( ! smoothInterpolation ) {

					// remove unnecessary keyframes same as their neighbors

					const offset = i * stride,
						offsetP = offset - stride,
						offsetN = offset + stride;

					for ( let j = 0; j !== stride; ++ j ) {

						const value = values[ offset + j ];

						if ( value !== values[ offsetP + j ] ||
							value !== values[ offsetN + j ] ) {

							keep = true;
							break;

						}

					}

				} else {

					keep = true;

				}

			}

			// in-place compaction

			if ( keep ) {

				if ( i !== writeIndex ) {

					times[ writeIndex ] = times[ i ];

					const readOffset = i * stride,
						writeOffset = writeIndex * stride;

					for ( let j = 0; j !== stride; ++ j ) {

						values[ writeOffset + j ] = values[ readOffset + j ];

					}

				}

				++ writeIndex;

			}

		}

		// flush last keyframe (compaction looks ahead)

		if ( lastIndex > 0 ) {

			times[ writeIndex ] = times[ lastIndex ];

			for ( let readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) {

				values[ writeOffset + j ] = values[ readOffset + j ];

			}

			++ writeIndex;

		}

		if ( writeIndex !== times.length ) {

			this.times = AnimationUtils.arraySlice( times, 0, writeIndex );
			this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );

		} else {

			this.times = times;
			this.values = values;

		}

		return this;

	}

	clone() {

		const times = AnimationUtils.arraySlice( this.times, 0 );
		const values = AnimationUtils.arraySlice( this.values, 0 );

		const TypedKeyframeTrack = this.constructor;
		const track = new TypedKeyframeTrack( this.name, times, values );

		// Interpolant argument to constructor is not saved, so copy the factory method directly.
		track.createInterpolant = this.createInterpolant;

		return track;

	}

}

KeyframeTrack.prototype.TimeBufferType = Float32Array;
KeyframeTrack.prototype.ValueBufferType = Float32Array;
KeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;

/**
 * A Track of Boolean keyframe values.
 */
class BooleanKeyframeTrack extends KeyframeTrack {}

BooleanKeyframeTrack.prototype.ValueTypeName = 'bool';
BooleanKeyframeTrack.prototype.ValueBufferType = Array;
BooleanKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
BooleanKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
BooleanKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;

/**
 * A Track of keyframe values that represent color.
 */
class ColorKeyframeTrack extends KeyframeTrack {}

ColorKeyframeTrack.prototype.ValueTypeName = 'color';

/**
 * A Track of numeric keyframe values.
 */
class NumberKeyframeTrack extends KeyframeTrack {}

NumberKeyframeTrack.prototype.ValueTypeName = 'number';

/**
 * Spherical linear unit quaternion interpolant.
 */

class QuaternionLinearInterpolant extends Interpolant {

	constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		super( parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	interpolate_( i1, t0, t, t1 ) {

		const result = this.resultBuffer,
			values = this.sampleValues,
			stride = this.valueSize,

			alpha = ( t - t0 ) / ( t1 - t0 );

		let offset = i1 * stride;

		for ( let end = offset + stride; offset !== end; offset += 4 ) {

			Quaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha );

		}

		return result;

	}

}

/**
 * A Track of quaternion keyframe values.
 */
class QuaternionKeyframeTrack extends KeyframeTrack {

	InterpolantFactoryMethodLinear( result ) {

		return new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result );

	}

}

QuaternionKeyframeTrack.prototype.ValueTypeName = 'quaternion';
// ValueBufferType is inherited
QuaternionKeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;
QuaternionKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;

/**
 * A Track that interpolates Strings
 */
class StringKeyframeTrack extends KeyframeTrack {}

StringKeyframeTrack.prototype.ValueTypeName = 'string';
StringKeyframeTrack.prototype.ValueBufferType = Array;
StringKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
StringKeyframeTrack.prototype.InterpolantFactoryMethodLinear = undefined;
StringKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = undefined;

/**
 * A Track of vectored keyframe values.
 */
class VectorKeyframeTrack extends KeyframeTrack {}

VectorKeyframeTrack.prototype.ValueTypeName = 'vector';

class AnimationClip {

	constructor( name, duration = - 1, tracks, blendMode = NormalAnimationBlendMode ) {

		this.name = name;
		this.tracks = tracks;
		this.duration = duration;
		this.blendMode = blendMode;

		this.uuid = generateUUID();

		// this means it should figure out its duration by scanning the tracks
		if ( this.duration < 0 ) {

			this.resetDuration();

		}

	}


	static parse( json ) {

		const tracks = [],
			jsonTracks = json.tracks,
			frameTime = 1.0 / ( json.fps || 1.0 );

		for ( let i = 0, n = jsonTracks.length; i !== n; ++ i ) {

			tracks.push( parseKeyframeTrack( jsonTracks[ i ] ).scale( frameTime ) );

		}

		const clip = new this( json.name, json.duration, tracks, json.blendMode );
		clip.uuid = json.uuid;

		return clip;

	}

	static toJSON( clip ) {

		const tracks = [],
			clipTracks = clip.tracks;

		const json = {

			'name': clip.name,
			'duration': clip.duration,
			'tracks': tracks,
			'uuid': clip.uuid,
			'blendMode': clip.blendMode

		};

		for ( let i = 0, n = clipTracks.length; i !== n; ++ i ) {

			tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );

		}

		return json;

	}

	static CreateFromMorphTargetSequence( name, morphTargetSequence, fps, noLoop ) {

		const numMorphTargets = morphTargetSequence.length;
		const tracks = [];

		for ( let i = 0; i < numMorphTargets; i ++ ) {

			let times = [];
			let values = [];

			times.push(
				( i + numMorphTargets - 1 ) % numMorphTargets,
				i,
				( i + 1 ) % numMorphTargets );

			values.push( 0, 1, 0 );

			const order = AnimationUtils.getKeyframeOrder( times );
			times = AnimationUtils.sortedArray( times, 1, order );
			values = AnimationUtils.sortedArray( values, 1, order );

			// if there is a key at the first frame, duplicate it as the
			// last frame as well for perfect loop.
			if ( ! noLoop && times[ 0 ] === 0 ) {

				times.push( numMorphTargets );
				values.push( values[ 0 ] );

			}

			tracks.push(
				new NumberKeyframeTrack(
					'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',
					times, values
				).scale( 1.0 / fps ) );

		}

		return new this( name, - 1, tracks );

	}

	static findByName( objectOrClipArray, name ) {

		let clipArray = objectOrClipArray;

		if ( ! Array.isArray( objectOrClipArray ) ) {

			const o = objectOrClipArray;
			clipArray = o.geometry && o.geometry.animations || o.animations;

		}

		for ( let i = 0; i < clipArray.length; i ++ ) {

			if ( clipArray[ i ].name === name ) {

				return clipArray[ i ];

			}

		}

		return null;

	}

	static CreateClipsFromMorphTargetSequences( morphTargets, fps, noLoop ) {

		const animationToMorphTargets = {};

		// tested with https://regex101.com/ on trick sequences
		// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
		const pattern = /^([\w-]*?)([\d]+)$/;

		// sort morph target names into animation groups based
		// patterns like Walk_001, Walk_002, Run_001, Run_002
		for ( let i = 0, il = morphTargets.length; i < il; i ++ ) {

			const morphTarget = morphTargets[ i ];
			const parts = morphTarget.name.match( pattern );

			if ( parts && parts.length > 1 ) {

				const name = parts[ 1 ];

				let animationMorphTargets = animationToMorphTargets[ name ];

				if ( ! animationMorphTargets ) {

					animationToMorphTargets[ name ] = animationMorphTargets = [];

				}

				animationMorphTargets.push( morphTarget );

			}

		}

		const clips = [];

		for ( const name in animationToMorphTargets ) {

			clips.push( this.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );

		}

		return clips;

	}

	// parse the animation.hierarchy format
	static parseAnimation( animation, bones ) {

		if ( ! animation ) {

			console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );
			return null;

		}

		const addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {

			// only return track if there are actually keys.
			if ( animationKeys.length !== 0 ) {

				const times = [];
				const values = [];

				AnimationUtils.flattenJSON( animationKeys, times, values, propertyName );

				// empty keys are filtered out, so check again
				if ( times.length !== 0 ) {

					destTracks.push( new trackType( trackName, times, values ) );

				}

			}

		};

		const tracks = [];

		const clipName = animation.name || 'default';
		const fps = animation.fps || 30;
		const blendMode = animation.blendMode;

		// automatic length determination in AnimationClip.
		let duration = animation.length || - 1;

		const hierarchyTracks = animation.hierarchy || [];

		for ( let h = 0; h < hierarchyTracks.length; h ++ ) {

			const animationKeys = hierarchyTracks[ h ].keys;

			// skip empty tracks
			if ( ! animationKeys || animationKeys.length === 0 ) continue;

			// process morph targets
			if ( animationKeys[ 0 ].morphTargets ) {

				// figure out all morph targets used in this track
				const morphTargetNames = {};

				let k;

				for ( k = 0; k < animationKeys.length; k ++ ) {

					if ( animationKeys[ k ].morphTargets ) {

						for ( let m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {

							morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;

						}

					}

				}

				// create a track for each morph target with all zero
				// morphTargetInfluences except for the keys in which
				// the morphTarget is named.
				for ( const morphTargetName in morphTargetNames ) {

					const times = [];
					const values = [];

					for ( let m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {

						const animationKey = animationKeys[ k ];

						times.push( animationKey.time );
						values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );

					}

					tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );

				}

				duration = morphTargetNames.length * ( fps || 1.0 );

			} else {

				// ...assume skeletal animation

				const boneName = '.bones[' + bones[ h ].name + ']';

				addNonemptyTrack(
					VectorKeyframeTrack, boneName + '.position',
					animationKeys, 'pos', tracks );

				addNonemptyTrack(
					QuaternionKeyframeTrack, boneName + '.quaternion',
					animationKeys, 'rot', tracks );

				addNonemptyTrack(
					VectorKeyframeTrack, boneName + '.scale',
					animationKeys, 'scl', tracks );

			}

		}

		if ( tracks.length === 0 ) {

			return null;

		}

		const clip = new this( clipName, duration, tracks, blendMode );

		return clip;

	}

	resetDuration() {

		const tracks = this.tracks;
		let duration = 0;

		for ( let i = 0, n = tracks.length; i !== n; ++ i ) {

			const track = this.tracks[ i ];

			duration = Math.max( duration, track.times[ track.times.length - 1 ] );

		}

		this.duration = duration;

		return this;

	}

	trim() {

		for ( let i = 0; i < this.tracks.length; i ++ ) {

			this.tracks[ i ].trim( 0, this.duration );

		}

		return this;

	}

	validate() {

		let valid = true;

		for ( let i = 0; i < this.tracks.length; i ++ ) {

			valid = valid && this.tracks[ i ].validate();

		}

		return valid;

	}

	optimize() {

		for ( let i = 0; i < this.tracks.length; i ++ ) {

			this.tracks[ i ].optimize();

		}

		return this;

	}

	clone() {

		const tracks = [];

		for ( let i = 0; i < this.tracks.length; i ++ ) {

			tracks.push( this.tracks[ i ].clone() );

		}

		return new this.constructor( this.name, this.duration, tracks, this.blendMode );

	}

	toJSON() {

		return this.constructor.toJSON( this );

	}

}

function getTrackTypeForValueTypeName( typeName ) {

	switch ( typeName.toLowerCase() ) {

		case 'scalar':
		case 'double':
		case 'float':
		case 'number':
		case 'integer':

			return NumberKeyframeTrack;

		case 'vector':
		case 'vector2':
		case 'vector3':
		case 'vector4':

			return VectorKeyframeTrack;

		case 'color':

			return ColorKeyframeTrack;

		case 'quaternion':

			return QuaternionKeyframeTrack;

		case 'bool':
		case 'boolean':

			return BooleanKeyframeTrack;

		case 'string':

			return StringKeyframeTrack;

	}

	throw new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName );

}

function parseKeyframeTrack( json ) {

	if ( json.type === undefined ) {

		throw new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' );

	}

	const trackType = getTrackTypeForValueTypeName( json.type );

	if ( json.times === undefined ) {

		const times = [], values = [];

		AnimationUtils.flattenJSON( json.keys, times, values, 'value' );

		json.times = times;
		json.values = values;

	}

	// derived classes can define a static parse method
	if ( trackType.parse !== undefined ) {

		return trackType.parse( json );

	} else {

		// by default, we assume a constructor compatible with the base
		return new trackType( json.name, json.times, json.values, json.interpolation );

	}

}

const Cache = {

	enabled: false,

	files: {},

	add: function ( key, file ) {

		if ( this.enabled === false ) return;

		// console.log( 'THREE.Cache', 'Adding key:', key );

		this.files[ key ] = file;

	},

	get: function ( key ) {

		if ( this.enabled === false ) return;

		// console.log( 'THREE.Cache', 'Checking key:', key );

		return this.files[ key ];

	},

	remove: function ( key ) {

		delete this.files[ key ];

	},

	clear: function () {

		this.files = {};

	}

};

class LoadingManager {

	constructor( onLoad, onProgress, onError ) {

		const scope = this;

		let isLoading = false;
		let itemsLoaded = 0;
		let itemsTotal = 0;
		let urlModifier = undefined;
		const handlers = [];

		// Refer to #5689 for the reason why we don't set .onStart
		// in the constructor

		this.onStart = undefined;
		this.onLoad = onLoad;
		this.onProgress = onProgress;
		this.onError = onError;

		this.itemStart = function ( url ) {

			itemsTotal ++;

			if ( isLoading === false ) {

				if ( scope.onStart !== undefined ) {

					scope.onStart( url, itemsLoaded, itemsTotal );

				}

			}

			isLoading = true;

		};

		this.itemEnd = function ( url ) {

			itemsLoaded ++;

			if ( scope.onProgress !== undefined ) {

				scope.onProgress( url, itemsLoaded, itemsTotal );

			}

			if ( itemsLoaded === itemsTotal ) {

				isLoading = false;

				if ( scope.onLoad !== undefined ) {

					scope.onLoad();

				}

			}

		};

		this.itemError = function ( url ) {

			if ( scope.onError !== undefined ) {

				scope.onError( url );

			}

		};

		this.resolveURL = function ( url ) {

			if ( urlModifier ) {

				return urlModifier( url );

			}

			return url;

		};

		this.setURLModifier = function ( transform ) {

			urlModifier = transform;

			return this;

		};

		this.addHandler = function ( regex, loader ) {

			handlers.push( regex, loader );

			return this;

		};

		this.removeHandler = function ( regex ) {

			const index = handlers.indexOf( regex );

			if ( index !== - 1 ) {

				handlers.splice( index, 2 );

			}

			return this;

		};

		this.getHandler = function ( file ) {

			for ( let i = 0, l = handlers.length; i < l; i += 2 ) {

				const regex = handlers[ i ];
				const loader = handlers[ i + 1 ];

				if ( regex.global ) regex.lastIndex = 0; // see #17920

				if ( regex.test( file ) ) {

					return loader;

				}

			}

			return null;

		};

	}

}

const DefaultLoadingManager = new LoadingManager();

class Loader {

	constructor( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

		this.crossOrigin = 'anonymous';
		this.withCredentials = false;
		this.path = '';
		this.resourcePath = '';
		this.requestHeader = {};

	}

	load( /* url, onLoad, onProgress, onError */ ) {}

	loadAsync( url, onProgress ) {

		const scope = this;

		return new Promise( function ( resolve, reject ) {

			scope.load( url, resolve, onProgress, reject );

		} );

	}

	parse( /* data */ ) {}

	setCrossOrigin( crossOrigin ) {

		this.crossOrigin = crossOrigin;
		return this;

	}

	setWithCredentials( value ) {

		this.withCredentials = value;
		return this;

	}

	setPath( path ) {

		this.path = path;
		return this;

	}

	setResourcePath( resourcePath ) {

		this.resourcePath = resourcePath;
		return this;

	}

	setRequestHeader( requestHeader ) {

		this.requestHeader = requestHeader;
		return this;

	}

}

const loading = {};

class FileLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( url, onLoad, onProgress, onError ) {

		if ( url === undefined ) url = '';

		if ( this.path !== undefined ) url = this.path + url;

		url = this.manager.resolveURL( url );

		const cached = Cache.get( url );

		if ( cached !== undefined ) {

			this.manager.itemStart( url );

			setTimeout( () => {

				if ( onLoad ) onLoad( cached );

				this.manager.itemEnd( url );

			}, 0 );

			return cached;

		}

		// Check if request is duplicate

		if ( loading[ url ] !== undefined ) {

			loading[ url ].push( {

				onLoad: onLoad,
				onProgress: onProgress,
				onError: onError

			} );

			return;

		}

		// Initialise array for duplicate requests
		loading[ url ] = [];

		loading[ url ].push( {
			onLoad: onLoad,
			onProgress: onProgress,
			onError: onError,
		} );

		// create request
		const req = new Request( url, {
			headers: new Headers( this.requestHeader ),
			credentials: this.withCredentials ? 'include' : 'same-origin',
			// An abort controller could be added within a future PR
		} );

		// record states ( avoid data race )
		const mimeType = this.mimeType;
		const responseType = this.responseType;

		// start the fetch
		fetch( req )
			.then( response => {

				if ( response.status === 200 || response.status === 0 ) {

					// Some browsers return HTTP Status 0 when using non-http protocol
					// e.g. 'file://' or 'data://'. Handle as success.

					if ( response.status === 0 ) {

						console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );

					}

					if ( typeof ReadableStream === 'undefined' || response.body.getReader === undefined ) {

						return response;

					}

					const callbacks = loading[ url ];
					const reader = response.body.getReader();
					const contentLength = response.headers.get( 'Content-Length' );
					const total = contentLength ? parseInt( contentLength ) : 0;
					const lengthComputable = total !== 0;
					let loaded = 0;

					// periodically read data into the new stream tracking while download progress
					const stream = new ReadableStream( {
						start( controller ) {

							readData();

							function readData() {

								reader.read().then( ( { done, value } ) => {

									if ( done ) {

										controller.close();

									} else {

										loaded += value.byteLength;

										const event = new ProgressEvent( 'progress', { lengthComputable, loaded, total } );
										for ( let i = 0, il = callbacks.length; i < il; i ++ ) {

											const callback = callbacks[ i ];
											if ( callback.onProgress ) callback.onProgress( event );

										}

										controller.enqueue( value );
										readData();

									}

								} );

							}

						}

					} );

					return new Response( stream );

				} else {

					throw Error( `fetch for "${response.url}" responded with ${response.status}: ${response.statusText}` );

				}

			} )
			.then( response => {

				switch ( responseType ) {

					case 'arraybuffer':

						return response.arrayBuffer();

					case 'blob':

						return response.blob();

					case 'document':

						return response.text()
							.then( text => {

								const parser = new DOMParser();
								return parser.parseFromString( text, mimeType );

							} );

					case 'json':

						return response.json();

					default:

						if ( mimeType === undefined ) {

							return response.text();

						} else {

							// sniff encoding
							const re = /charset="?([^;"\s]*)"?/i;
							const exec = re.exec( mimeType );
							const label = exec && exec[ 1 ] ? exec[ 1 ].toLowerCase() : undefined;
							const decoder = new TextDecoder( label );
							return response.arrayBuffer().then( ab => decoder.decode( ab ) );

						}

				}

			} )
			.then( data => {

				// Add to cache only on HTTP success, so that we do not cache
				// error response bodies as proper responses to requests.
				Cache.add( url, data );

				const callbacks = loading[ url ];
				delete loading[ url ];

				for ( let i = 0, il = callbacks.length; i < il; i ++ ) {

					const callback = callbacks[ i ];
					if ( callback.onLoad ) callback.onLoad( data );

				}

			} )
			.catch( err => {

				// Abort errors and other errors are handled the same

				const callbacks = loading[ url ];

				if ( callbacks === undefined ) {

					// When onLoad was called and url was deleted in `loading`
					this.manager.itemError( url );
					throw err;

				}

				delete loading[ url ];

				for ( let i = 0, il = callbacks.length; i < il; i ++ ) {

					const callback = callbacks[ i ];
					if ( callback.onError ) callback.onError( err );

				}

				this.manager.itemError( url );

			} )
			.finally( () => {

				this.manager.itemEnd( url );

			} );

		this.manager.itemStart( url );

	}

	setResponseType( value ) {

		this.responseType = value;
		return this;

	}

	setMimeType( value ) {

		this.mimeType = value;
		return this;

	}

}

class AnimationLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( url, onLoad, onProgress, onError ) {

		const scope = this;

		const loader = new FileLoader( this.manager );
		loader.setPath( this.path );
		loader.setRequestHeader( this.requestHeader );
		loader.setWithCredentials( this.withCredentials );
		loader.load( url, function ( text ) {

			try {

				onLoad( scope.parse( JSON.parse( text ) ) );

			} catch ( e ) {

				if ( onError ) {

					onError( e );

				} else {

					console.error( e );

				}

				scope.manager.itemError( url );

			}

		}, onProgress, onError );

	}

	parse( json ) {

		const animations = [];

		for ( let i = 0; i < json.length; i ++ ) {

			const clip = AnimationClip.parse( json[ i ] );

			animations.push( clip );

		}

		return animations;

	}

}

/**
 * Abstract Base class to block based textures loader (dds, pvr, ...)
 *
 * Sub classes have to implement the parse() method which will be used in load().
 */

class CompressedTextureLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( url, onLoad, onProgress, onError ) {

		const scope = this;

		const images = [];

		const texture = new CompressedTexture();

		const loader = new FileLoader( this.manager );
		loader.setPath( this.path );
		loader.setResponseType( 'arraybuffer' );
		loader.setRequestHeader( this.requestHeader );
		loader.setWithCredentials( scope.withCredentials );

		let loaded = 0;

		function loadTexture( i ) {

			loader.load( url[ i ], function ( buffer ) {

				const texDatas = scope.parse( buffer, true );

				images[ i ] = {
					width: texDatas.width,
					height: texDatas.height,
					format: texDatas.format,
					mipmaps: texDatas.mipmaps
				};

				loaded += 1;

				if ( loaded === 6 ) {

					if ( texDatas.mipmapCount === 1 ) texture.minFilter = LinearFilter;

					texture.image = images;
					texture.format = texDatas.format;
					texture.needsUpdate = true;

					if ( onLoad ) onLoad( texture );

				}

			}, onProgress, onError );

		}

		if ( Array.isArray( url ) ) {

			for ( let i = 0, il = url.length; i < il; ++ i ) {

				loadTexture( i );

			}

		} else {

			// compressed cubemap texture stored in a single DDS file

			loader.load( url, function ( buffer ) {

				const texDatas = scope.parse( buffer, true );

				if ( texDatas.isCubemap ) {

					const faces = texDatas.mipmaps.length / texDatas.mipmapCount;

					for ( let f = 0; f < faces; f ++ ) {

						images[ f ] = { mipmaps: [] };

						for ( let i = 0; i < texDatas.mipmapCount; i ++ ) {

							images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );
							images[ f ].format = texDatas.format;
							images[ f ].width = texDatas.width;
							images[ f ].height = texDatas.height;

						}

					}

					texture.image = images;

				} else {

					texture.image.width = texDatas.width;
					texture.image.height = texDatas.height;
					texture.mipmaps = texDatas.mipmaps;

				}

				if ( texDatas.mipmapCount === 1 ) {

					texture.minFilter = LinearFilter;

				}

				texture.format = texDatas.format;
				texture.needsUpdate = true;

				if ( onLoad ) onLoad( texture );

			}, onProgress, onError );

		}

		return texture;

	}

}

class ImageLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( url, onLoad, onProgress, onError ) {

		if ( this.path !== undefined ) url = this.path + url;

		url = this.manager.resolveURL( url );

		const scope = this;

		const cached = Cache.get( url );

		if ( cached !== undefined ) {

			scope.manager.itemStart( url );

			setTimeout( function () {

				if ( onLoad ) onLoad( cached );

				scope.manager.itemEnd( url );

			}, 0 );

			return cached;

		}

		const image = createElementNS( 'img' );

		function onImageLoad() {

			removeEventListeners();

			Cache.add( url, this );

			if ( onLoad ) onLoad( this );

			scope.manager.itemEnd( url );

		}

		function onImageError( event ) {

			removeEventListeners();

			if ( onError ) onError( event );

			scope.manager.itemError( url );
			scope.manager.itemEnd( url );

		}

		function removeEventListeners() {

			image.removeEventListener( 'load', onImageLoad, false );
			image.removeEventListener( 'error', onImageError, false );

		}

		image.addEventListener( 'load', onImageLoad, false );
		image.addEventListener( 'error', onImageError, false );

		if ( url.substr( 0, 5 ) !== 'data:' ) {

			if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;

		}

		scope.manager.itemStart( url );

		image.src = url;

		return image;

	}

}

class CubeTextureLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( urls, onLoad, onProgress, onError ) {

		const texture = new CubeTexture();

		const loader = new ImageLoader( this.manager );
		loader.setCrossOrigin( this.crossOrigin );
		loader.setPath( this.path );

		let loaded = 0;

		function loadTexture( i ) {

			loader.load( urls[ i ], function ( image ) {

				texture.images[ i ] = image;

				loaded ++;

				if ( loaded === 6 ) {

					texture.needsUpdate = true;

					if ( onLoad ) onLoad( texture );

				}

			}, undefined, onError );

		}

		for ( let i = 0; i < urls.length; ++ i ) {

			loadTexture( i );

		}

		return texture;

	}

}

/**
 * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
 *
 * Sub classes have to implement the parse() method which will be used in load().
 */

class DataTextureLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( url, onLoad, onProgress, onError ) {

		const scope = this;

		const texture = new DataTexture();

		const loader = new FileLoader( this.manager );
		loader.setResponseType( 'arraybuffer' );
		loader.setRequestHeader( this.requestHeader );
		loader.setPath( this.path );
		loader.setWithCredentials( scope.withCredentials );
		loader.load( url, function ( buffer ) {

			const texData = scope.parse( buffer );

			if ( ! texData ) return;

			if ( texData.image !== undefined ) {

				texture.image = texData.image;

			} else if ( texData.data !== undefined ) {

				texture.image.width = texData.width;
				texture.image.height = texData.height;
				texture.image.data = texData.data;

			}

			texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping;
			texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping;

			texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter;
			texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearFilter;

			texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1;

			if ( texData.encoding !== undefined ) {

				texture.encoding = texData.encoding;

			}

			if ( texData.flipY !== undefined ) {

				texture.flipY = texData.flipY;

			}

			if ( texData.format !== undefined ) {

				texture.format = texData.format;

			}

			if ( texData.type !== undefined ) {

				texture.type = texData.type;

			}

			if ( texData.mipmaps !== undefined ) {

				texture.mipmaps = texData.mipmaps;
				texture.minFilter = LinearMipmapLinearFilter; // presumably...

			}

			if ( texData.mipmapCount === 1 ) {

				texture.minFilter = LinearFilter;

			}

			if ( texData.generateMipmaps !== undefined ) {

				texture.generateMipmaps = texData.generateMipmaps;

			}

			texture.needsUpdate = true;

			if ( onLoad ) onLoad( texture, texData );

		}, onProgress, onError );


		return texture;

	}

}

class TextureLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( url, onLoad, onProgress, onError ) {

		const texture = new Texture();

		const loader = new ImageLoader( this.manager );
		loader.setCrossOrigin( this.crossOrigin );
		loader.setPath( this.path );

		loader.load( url, function ( image ) {

			texture.image = image;
			texture.needsUpdate = true;

			if ( onLoad !== undefined ) {

				onLoad( texture );

			}

		}, onProgress, onError );

		return texture;

	}

}

class Light extends Object3D {

	constructor( color, intensity = 1 ) {

		super();

		this.type = 'Light';

		this.color = new Color( color );
		this.intensity = intensity;

	}

	dispose() {

		// Empty here in base class; some subclasses override.

	}

	copy( source ) {

		super.copy( source );

		this.color.copy( source.color );
		this.intensity = source.intensity;

		return this;

	}

	toJSON( meta ) {

		const data = super.toJSON( meta );

		data.object.color = this.color.getHex();
		data.object.intensity = this.intensity;

		if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();

		if ( this.distance !== undefined ) data.object.distance = this.distance;
		if ( this.angle !== undefined ) data.object.angle = this.angle;
		if ( this.decay !== undefined ) data.object.decay = this.decay;
		if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;

		if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();

		return data;

	}

}

Light.prototype.isLight = true;

class HemisphereLight extends Light {

	constructor( skyColor, groundColor, intensity ) {

		super( skyColor, intensity );

		this.type = 'HemisphereLight';

		this.position.copy( Object3D.DefaultUp );
		this.updateMatrix();

		this.groundColor = new Color( groundColor );

	}

	copy( source ) {

		Light.prototype.copy.call( this, source );

		this.groundColor.copy( source.groundColor );

		return this;

	}

}

HemisphereLight.prototype.isHemisphereLight = true;

const _projScreenMatrix$1 = /*@__PURE__*/ new Matrix4();
const _lightPositionWorld$1 = /*@__PURE__*/ new Vector3();
const _lookTarget$1 = /*@__PURE__*/ new Vector3();

class LightShadow {

	constructor( camera ) {

		this.camera = camera;

		this.bias = 0;
		this.normalBias = 0;
		this.radius = 1;
		this.blurSamples = 8;

		this.mapSize = new Vector2( 512, 512 );

		this.map = null;
		this.mapPass = null;
		this.matrix = new Matrix4();

		this.autoUpdate = true;
		this.needsUpdate = false;

		this._frustum = new Frustum();
		this._frameExtents = new Vector2( 1, 1 );

		this._viewportCount = 1;

		this._viewports = [

			new Vector4( 0, 0, 1, 1 )

		];

	}

	getViewportCount() {

		return this._viewportCount;

	}

	getFrustum() {

		return this._frustum;

	}

	updateMatrices( light ) {

		const shadowCamera = this.camera;
		const shadowMatrix = this.matrix;

		_lightPositionWorld$1.setFromMatrixPosition( light.matrixWorld );
		shadowCamera.position.copy( _lightPositionWorld$1 );

		_lookTarget$1.setFromMatrixPosition( light.target.matrixWorld );
		shadowCamera.lookAt( _lookTarget$1 );
		shadowCamera.updateMatrixWorld();

		_projScreenMatrix$1.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );
		this._frustum.setFromProjectionMatrix( _projScreenMatrix$1 );

		shadowMatrix.set(
			0.5, 0.0, 0.0, 0.5,
			0.0, 0.5, 0.0, 0.5,
			0.0, 0.0, 0.5, 0.5,
			0.0, 0.0, 0.0, 1.0
		);

		shadowMatrix.multiply( shadowCamera.projectionMatrix );
		shadowMatrix.multiply( shadowCamera.matrixWorldInverse );

	}

	getViewport( viewportIndex ) {

		return this._viewports[ viewportIndex ];

	}

	getFrameExtents() {

		return this._frameExtents;

	}

	dispose() {

		if ( this.map ) {

			this.map.dispose();

		}

		if ( this.mapPass ) {

			this.mapPass.dispose();

		}

	}

	copy( source ) {

		this.camera = source.camera.clone();

		this.bias = source.bias;
		this.radius = source.radius;

		this.mapSize.copy( source.mapSize );

		return this;

	}

	clone() {

		return new this.constructor().copy( this );

	}

	toJSON() {

		const object = {};

		if ( this.bias !== 0 ) object.bias = this.bias;
		if ( this.normalBias !== 0 ) object.normalBias = this.normalBias;
		if ( this.radius !== 1 ) object.radius = this.radius;
		if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();

		object.camera = this.camera.toJSON( false ).object;
		delete object.camera.matrix;

		return object;

	}

}

class SpotLightShadow extends LightShadow {

	constructor() {

		super( new PerspectiveCamera( 50, 1, 0.5, 500 ) );

		this.focus = 1;

	}

	updateMatrices( light ) {

		const camera = this.camera;

		const fov = RAD2DEG * 2 * light.angle * this.focus;
		const aspect = this.mapSize.width / this.mapSize.height;
		const far = light.distance || camera.far;

		if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {

			camera.fov = fov;
			camera.aspect = aspect;
			camera.far = far;
			camera.updateProjectionMatrix();

		}

		super.updateMatrices( light );

	}

	copy( source ) {

		super.copy( source );

		this.focus = source.focus;

		return this;

	}

}

SpotLightShadow.prototype.isSpotLightShadow = true;

class SpotLight extends Light {

	constructor( color, intensity, distance = 0, angle = Math.PI / 3, penumbra = 0, decay = 1 ) {

		super( color, intensity );

		this.type = 'SpotLight';

		this.position.copy( Object3D.DefaultUp );
		this.updateMatrix();

		this.target = new Object3D();

		this.distance = distance;
		this.angle = angle;
		this.penumbra = penumbra;
		this.decay = decay; // for physically correct lights, should be 2.

		this.shadow = new SpotLightShadow();

	}

	get power() {

		// compute the light's luminous power (in lumens) from its intensity (in candela)
		// by convention for a spotlight, luminous power (lm) = π * luminous intensity (cd)
		return this.intensity * Math.PI;

	}

	set power( power ) {

		// set the light's intensity (in candela) from the desired luminous power (in lumens)
		this.intensity = power / Math.PI;

	}

	dispose() {

		this.shadow.dispose();

	}

	copy( source ) {

		super.copy( source );

		this.distance = source.distance;
		this.angle = source.angle;
		this.penumbra = source.penumbra;
		this.decay = source.decay;

		this.target = source.target.clone();

		this.shadow = source.shadow.clone();

		return this;

	}

}

SpotLight.prototype.isSpotLight = true;

const _projScreenMatrix = /*@__PURE__*/ new Matrix4();
const _lightPositionWorld = /*@__PURE__*/ new Vector3();
const _lookTarget = /*@__PURE__*/ new Vector3();

class PointLightShadow extends LightShadow {

	constructor() {

		super( new PerspectiveCamera( 90, 1, 0.5, 500 ) );

		this._frameExtents = new Vector2( 4, 2 );

		this._viewportCount = 6;

		this._viewports = [
			// These viewports map a cube-map onto a 2D texture with the
			// following orientation:
			//
			//  xzXZ
			//   y Y
			//
			// X - Positive x direction
			// x - Negative x direction
			// Y - Positive y direction
			// y - Negative y direction
			// Z - Positive z direction
			// z - Negative z direction

			// positive X
			new Vector4( 2, 1, 1, 1 ),
			// negative X
			new Vector4( 0, 1, 1, 1 ),
			// positive Z
			new Vector4( 3, 1, 1, 1 ),
			// negative Z
			new Vector4( 1, 1, 1, 1 ),
			// positive Y
			new Vector4( 3, 0, 1, 1 ),
			// negative Y
			new Vector4( 1, 0, 1, 1 )
		];

		this._cubeDirections = [
			new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),
			new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )
		];

		this._cubeUps = [
			new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),
			new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),	new Vector3( 0, 0, - 1 )
		];

	}

	updateMatrices( light, viewportIndex = 0 ) {

		const camera = this.camera;
		const shadowMatrix = this.matrix;

		const far = light.distance || camera.far;

		if ( far !== camera.far ) {

			camera.far = far;
			camera.updateProjectionMatrix();

		}

		_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );
		camera.position.copy( _lightPositionWorld );

		_lookTarget.copy( camera.position );
		_lookTarget.add( this._cubeDirections[ viewportIndex ] );
		camera.up.copy( this._cubeUps[ viewportIndex ] );
		camera.lookAt( _lookTarget );
		camera.updateMatrixWorld();

		shadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );

		_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
		this._frustum.setFromProjectionMatrix( _projScreenMatrix );

	}

}

PointLightShadow.prototype.isPointLightShadow = true;

class PointLight extends Light {

	constructor( color, intensity, distance = 0, decay = 1 ) {

		super( color, intensity );

		this.type = 'PointLight';

		this.distance = distance;
		this.decay = decay; // for physically correct lights, should be 2.

		this.shadow = new PointLightShadow();

	}

	get power() {

		// compute the light's luminous power (in lumens) from its intensity (in candela)
		// for an isotropic light source, luminous power (lm) = 4 π luminous intensity (cd)
		return this.intensity * 4 * Math.PI;

	}

	set power( power ) {

		// set the light's intensity (in candela) from the desired luminous power (in lumens)
		this.intensity = power / ( 4 * Math.PI );

	}

	dispose() {

		this.shadow.dispose();

	}

	copy( source ) {

		super.copy( source );

		this.distance = source.distance;
		this.decay = source.decay;

		this.shadow = source.shadow.clone();

		return this;

	}

}

PointLight.prototype.isPointLight = true;

class DirectionalLightShadow extends LightShadow {

	constructor() {

		super( new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );

	}

}

DirectionalLightShadow.prototype.isDirectionalLightShadow = true;

class DirectionalLight extends Light {

	constructor( color, intensity ) {

		super( color, intensity );

		this.type = 'DirectionalLight';

		this.position.copy( Object3D.DefaultUp );
		this.updateMatrix();

		this.target = new Object3D();

		this.shadow = new DirectionalLightShadow();

	}

	dispose() {

		this.shadow.dispose();

	}

	copy( source ) {

		super.copy( source );

		this.target = source.target.clone();
		this.shadow = source.shadow.clone();

		return this;

	}

}

DirectionalLight.prototype.isDirectionalLight = true;

class AmbientLight extends Light {

	constructor( color, intensity ) {

		super( color, intensity );

		this.type = 'AmbientLight';

	}

}

AmbientLight.prototype.isAmbientLight = true;

class RectAreaLight extends Light {

	constructor( color, intensity, width = 10, height = 10 ) {

		super( color, intensity );

		this.type = 'RectAreaLight';

		this.width = width;
		this.height = height;

	}

	get power() {

		// compute the light's luminous power (in lumens) from its intensity (in nits)
		return this.intensity * this.width * this.height * Math.PI;

	}

	set power( power ) {

		// set the light's intensity (in nits) from the desired luminous power (in lumens)
		this.intensity = power / ( this.width * this.height * Math.PI );

	}

	copy( source ) {

		super.copy( source );

		this.width = source.width;
		this.height = source.height;

		return this;

	}

	toJSON( meta ) {

		const data = super.toJSON( meta );

		data.object.width = this.width;
		data.object.height = this.height;

		return data;

	}

}

RectAreaLight.prototype.isRectAreaLight = true;

/**
 * Primary reference:
 *   https://graphics.stanford.edu/papers/envmap/envmap.pdf
 *
 * Secondary reference:
 *   https://www.ppsloan.org/publications/StupidSH36.pdf
 */

// 3-band SH defined by 9 coefficients

class SphericalHarmonics3 {

	constructor() {

		this.coefficients = [];

		for ( let i = 0; i < 9; i ++ ) {

			this.coefficients.push( new Vector3() );

		}

	}

	set( coefficients ) {

		for ( let i = 0; i < 9; i ++ ) {

			this.coefficients[ i ].copy( coefficients[ i ] );

		}

		return this;

	}

	zero() {

		for ( let i = 0; i < 9; i ++ ) {

			this.coefficients[ i ].set( 0, 0, 0 );

		}

		return this;

	}

	// get the radiance in the direction of the normal
	// target is a Vector3
	getAt( normal, target ) {

		// normal is assumed to be unit length

		const x = normal.x, y = normal.y, z = normal.z;

		const coeff = this.coefficients;

		// band 0
		target.copy( coeff[ 0 ] ).multiplyScalar( 0.282095 );

		// band 1
		target.addScaledVector( coeff[ 1 ], 0.488603 * y );
		target.addScaledVector( coeff[ 2 ], 0.488603 * z );
		target.addScaledVector( coeff[ 3 ], 0.488603 * x );

		// band 2
		target.addScaledVector( coeff[ 4 ], 1.092548 * ( x * y ) );
		target.addScaledVector( coeff[ 5 ], 1.092548 * ( y * z ) );
		target.addScaledVector( coeff[ 6 ], 0.315392 * ( 3.0 * z * z - 1.0 ) );
		target.addScaledVector( coeff[ 7 ], 1.092548 * ( x * z ) );
		target.addScaledVector( coeff[ 8 ], 0.546274 * ( x * x - y * y ) );

		return target;

	}

	// get the irradiance (radiance convolved with cosine lobe) in the direction of the normal
	// target is a Vector3
	// https://graphics.stanford.edu/papers/envmap/envmap.pdf
	getIrradianceAt( normal, target ) {

		// normal is assumed to be unit length

		const x = normal.x, y = normal.y, z = normal.z;

		const coeff = this.coefficients;

		// band 0
		target.copy( coeff[ 0 ] ).multiplyScalar( 0.886227 ); // π * 0.282095

		// band 1
		target.addScaledVector( coeff[ 1 ], 2.0 * 0.511664 * y ); // ( 2 * π / 3 ) * 0.488603
		target.addScaledVector( coeff[ 2 ], 2.0 * 0.511664 * z );
		target.addScaledVector( coeff[ 3 ], 2.0 * 0.511664 * x );

		// band 2
		target.addScaledVector( coeff[ 4 ], 2.0 * 0.429043 * x * y ); // ( π / 4 ) * 1.092548
		target.addScaledVector( coeff[ 5 ], 2.0 * 0.429043 * y * z );
		target.addScaledVector( coeff[ 6 ], 0.743125 * z * z - 0.247708 ); // ( π / 4 ) * 0.315392 * 3
		target.addScaledVector( coeff[ 7 ], 2.0 * 0.429043 * x * z );
		target.addScaledVector( coeff[ 8 ], 0.429043 * ( x * x - y * y ) ); // ( π / 4 ) * 0.546274

		return target;

	}

	add( sh ) {

		for ( let i = 0; i < 9; i ++ ) {

			this.coefficients[ i ].add( sh.coefficients[ i ] );

		}

		return this;

	}

	addScaledSH( sh, s ) {

		for ( let i = 0; i < 9; i ++ ) {

			this.coefficients[ i ].addScaledVector( sh.coefficients[ i ], s );

		}

		return this;

	}

	scale( s ) {

		for ( let i = 0; i < 9; i ++ ) {

			this.coefficients[ i ].multiplyScalar( s );

		}

		return this;

	}

	lerp( sh, alpha ) {

		for ( let i = 0; i < 9; i ++ ) {

			this.coefficients[ i ].lerp( sh.coefficients[ i ], alpha );

		}

		return this;

	}

	equals( sh ) {

		for ( let i = 0; i < 9; i ++ ) {

			if ( ! this.coefficients[ i ].equals( sh.coefficients[ i ] ) ) {

				return false;

			}

		}

		return true;

	}

	copy( sh ) {

		return this.set( sh.coefficients );

	}

	clone() {

		return new this.constructor().copy( this );

	}

	fromArray( array, offset = 0 ) {

		const coefficients = this.coefficients;

		for ( let i = 0; i < 9; i ++ ) {

			coefficients[ i ].fromArray( array, offset + ( i * 3 ) );

		}

		return this;

	}

	toArray( array = [], offset = 0 ) {

		const coefficients = this.coefficients;

		for ( let i = 0; i < 9; i ++ ) {

			coefficients[ i ].toArray( array, offset + ( i * 3 ) );

		}

		return array;

	}

	// evaluate the basis functions
	// shBasis is an Array[ 9 ]
	static getBasisAt( normal, shBasis ) {

		// normal is assumed to be unit length

		const x = normal.x, y = normal.y, z = normal.z;

		// band 0
		shBasis[ 0 ] = 0.282095;

		// band 1
		shBasis[ 1 ] = 0.488603 * y;
		shBasis[ 2 ] = 0.488603 * z;
		shBasis[ 3 ] = 0.488603 * x;

		// band 2
		shBasis[ 4 ] = 1.092548 * x * y;
		shBasis[ 5 ] = 1.092548 * y * z;
		shBasis[ 6 ] = 0.315392 * ( 3 * z * z - 1 );
		shBasis[ 7 ] = 1.092548 * x * z;
		shBasis[ 8 ] = 0.546274 * ( x * x - y * y );

	}

}

SphericalHarmonics3.prototype.isSphericalHarmonics3 = true;

class LightProbe extends Light {

	constructor( sh = new SphericalHarmonics3(), intensity = 1 ) {

		super( undefined, intensity );

		this.sh = sh;

	}

	copy( source ) {

		super.copy( source );

		this.sh.copy( source.sh );

		return this;

	}

	fromJSON( json ) {

		this.intensity = json.intensity; // TODO: Move this bit to Light.fromJSON();
		this.sh.fromArray( json.sh );

		return this;

	}

	toJSON( meta ) {

		const data = super.toJSON( meta );

		data.object.sh = this.sh.toArray();

		return data;

	}

}

LightProbe.prototype.isLightProbe = true;

class MaterialLoader extends Loader {

	constructor( manager ) {

		super( manager );
		this.textures = {};

	}

	load( url, onLoad, onProgress, onError ) {

		const scope = this;

		const loader = new FileLoader( scope.manager );
		loader.setPath( scope.path );
		loader.setRequestHeader( scope.requestHeader );
		loader.setWithCredentials( scope.withCredentials );
		loader.load( url, function ( text ) {

			try {

				onLoad( scope.parse( JSON.parse( text ) ) );

			} catch ( e ) {

				if ( onError ) {

					onError( e );

				} else {

					console.error( e );

				}

				scope.manager.itemError( url );

			}

		}, onProgress, onError );

	}

	parse( json ) {

		const textures = this.textures;

		function getTexture( name ) {

			if ( textures[ name ] === undefined ) {

				console.warn( 'THREE.MaterialLoader: Undefined texture', name );

			}

			return textures[ name ];

		}

		const material = new Materials[ json.type ]();

		if ( json.uuid !== undefined ) material.uuid = json.uuid;
		if ( json.name !== undefined ) material.name = json.name;
		if ( json.color !== undefined && material.color !== undefined ) material.color.setHex( json.color );
		if ( json.roughness !== undefined ) material.roughness = json.roughness;
		if ( json.metalness !== undefined ) material.metalness = json.metalness;
		if ( json.sheen !== undefined ) material.sheen = json.sheen;
		if ( json.sheenColor !== undefined ) material.sheenColor = new Color().setHex( json.sheenColor );
		if ( json.sheenRoughness !== undefined ) material.sheenRoughness = json.sheenRoughness;
		if ( json.emissive !== undefined && material.emissive !== undefined ) material.emissive.setHex( json.emissive );
		if ( json.specular !== undefined && material.specular !== undefined ) material.specular.setHex( json.specular );
		if ( json.specularIntensity !== undefined ) material.specularIntensity = json.specularIntensity;
		if ( json.specularColor !== undefined && material.specularColor !== undefined ) material.specularColor.setHex( json.specularColor );
		if ( json.shininess !== undefined ) material.shininess = json.shininess;
		if ( json.clearcoat !== undefined ) material.clearcoat = json.clearcoat;
		if ( json.clearcoatRoughness !== undefined ) material.clearcoatRoughness = json.clearcoatRoughness;
		if ( json.transmission !== undefined ) material.transmission = json.transmission;
		if ( json.thickness !== undefined ) material.thickness = json.thickness;
		if ( json.attenuationDistance !== undefined ) material.attenuationDistance = json.attenuationDistance;
		if ( json.attenuationColor !== undefined && material.attenuationColor !== undefined ) material.attenuationColor.setHex( json.attenuationColor );
		if ( json.fog !== undefined ) material.fog = json.fog;
		if ( json.flatShading !== undefined ) material.flatShading = json.flatShading;
		if ( json.blending !== undefined ) material.blending = json.blending;
		if ( json.combine !== undefined ) material.combine = json.combine;
		if ( json.side !== undefined ) material.side = json.side;
		if ( json.shadowSide !== undefined ) material.shadowSide = json.shadowSide;
		if ( json.opacity !== undefined ) material.opacity = json.opacity;
		if ( json.transparent !== undefined ) material.transparent = json.transparent;
		if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;
		if ( json.depthTest !== undefined ) material.depthTest = json.depthTest;
		if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;
		if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;

		if ( json.stencilWrite !== undefined ) material.stencilWrite = json.stencilWrite;
		if ( json.stencilWriteMask !== undefined ) material.stencilWriteMask = json.stencilWriteMask;
		if ( json.stencilFunc !== undefined ) material.stencilFunc = json.stencilFunc;
		if ( json.stencilRef !== undefined ) material.stencilRef = json.stencilRef;
		if ( json.stencilFuncMask !== undefined ) material.stencilFuncMask = json.stencilFuncMask;
		if ( json.stencilFail !== undefined ) material.stencilFail = json.stencilFail;
		if ( json.stencilZFail !== undefined ) material.stencilZFail = json.stencilZFail;
		if ( json.stencilZPass !== undefined ) material.stencilZPass = json.stencilZPass;

		if ( json.wireframe !== undefined ) material.wireframe = json.wireframe;
		if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;
		if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;
		if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;

		if ( json.rotation !== undefined ) material.rotation = json.rotation;

		if ( json.linewidth !== 1 ) material.linewidth = json.linewidth;
		if ( json.dashSize !== undefined ) material.dashSize = json.dashSize;
		if ( json.gapSize !== undefined ) material.gapSize = json.gapSize;
		if ( json.scale !== undefined ) material.scale = json.scale;

		if ( json.polygonOffset !== undefined ) material.polygonOffset = json.polygonOffset;
		if ( json.polygonOffsetFactor !== undefined ) material.polygonOffsetFactor = json.polygonOffsetFactor;
		if ( json.polygonOffsetUnits !== undefined ) material.polygonOffsetUnits = json.polygonOffsetUnits;

		if ( json.dithering !== undefined ) material.dithering = json.dithering;

		if ( json.alphaToCoverage !== undefined ) material.alphaToCoverage = json.alphaToCoverage;
		if ( json.premultipliedAlpha !== undefined ) material.premultipliedAlpha = json.premultipliedAlpha;

		if ( json.visible !== undefined ) material.visible = json.visible;

		if ( json.toneMapped !== undefined ) material.toneMapped = json.toneMapped;

		if ( json.userData !== undefined ) material.userData = json.userData;

		if ( json.vertexColors !== undefined ) {

			if ( typeof json.vertexColors === 'number' ) {

				material.vertexColors = ( json.vertexColors > 0 ) ? true : false;

			} else {

				material.vertexColors = json.vertexColors;

			}

		}

		// Shader Material

		if ( json.uniforms !== undefined ) {

			for ( const name in json.uniforms ) {

				const uniform = json.uniforms[ name ];

				material.uniforms[ name ] = {};

				switch ( uniform.type ) {

					case 't':
						material.uniforms[ name ].value = getTexture( uniform.value );
						break;

					case 'c':
						material.uniforms[ name ].value = new Color().setHex( uniform.value );
						break;

					case 'v2':
						material.uniforms[ name ].value = new Vector2().fromArray( uniform.value );
						break;

					case 'v3':
						material.uniforms[ name ].value = new Vector3().fromArray( uniform.value );
						break;

					case 'v4':
						material.uniforms[ name ].value = new Vector4().fromArray( uniform.value );
						break;

					case 'm3':
						material.uniforms[ name ].value = new Matrix3().fromArray( uniform.value );
						break;

					case 'm4':
						material.uniforms[ name ].value = new Matrix4().fromArray( uniform.value );
						break;

					default:
						material.uniforms[ name ].value = uniform.value;

				}

			}

		}

		if ( json.defines !== undefined ) material.defines = json.defines;
		if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;
		if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;

		if ( json.extensions !== undefined ) {

			for ( const key in json.extensions ) {

				material.extensions[ key ] = json.extensions[ key ];

			}

		}

		// Deprecated

		if ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading

		// for PointsMaterial

		if ( json.size !== undefined ) material.size = json.size;
		if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;

		// maps

		if ( json.map !== undefined ) material.map = getTexture( json.map );
		if ( json.matcap !== undefined ) material.matcap = getTexture( json.matcap );

		if ( json.alphaMap !== undefined ) material.alphaMap = getTexture( json.alphaMap );

		if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );
		if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;

		if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );
		if ( json.normalMapType !== undefined ) material.normalMapType = json.normalMapType;
		if ( json.normalScale !== undefined ) {

			let normalScale = json.normalScale;

			if ( Array.isArray( normalScale ) === false ) {

				// Blender exporter used to export a scalar. See #7459

				normalScale = [ normalScale, normalScale ];

			}

			material.normalScale = new Vector2().fromArray( normalScale );

		}

		if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );
		if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;
		if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;

		if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );
		if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );

		if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );
		if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;

		if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );
		if ( json.specularIntensityMap !== undefined ) material.specularIntensityMap = getTexture( json.specularIntensityMap );
		if ( json.specularColorMap !== undefined ) material.specularColorMap = getTexture( json.specularColorMap );

		if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );
		if ( json.envMapIntensity !== undefined ) material.envMapIntensity = json.envMapIntensity;

		if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;
		if ( json.refractionRatio !== undefined ) material.refractionRatio = json.refractionRatio;

		if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );
		if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;

		if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );
		if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;

		if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );

		if ( json.clearcoatMap !== undefined ) material.clearcoatMap = getTexture( json.clearcoatMap );
		if ( json.clearcoatRoughnessMap !== undefined ) material.clearcoatRoughnessMap = getTexture( json.clearcoatRoughnessMap );
		if ( json.clearcoatNormalMap !== undefined ) material.clearcoatNormalMap = getTexture( json.clearcoatNormalMap );
		if ( json.clearcoatNormalScale !== undefined ) material.clearcoatNormalScale = new Vector2().fromArray( json.clearcoatNormalScale );

		if ( json.transmissionMap !== undefined ) material.transmissionMap = getTexture( json.transmissionMap );
		if ( json.thicknessMap !== undefined ) material.thicknessMap = getTexture( json.thicknessMap );

		if ( json.sheenColorMap !== undefined ) material.sheenColorMap = getTexture( json.sheenColorMap );
		if ( json.sheenRoughnessMap !== undefined ) material.sheenRoughnessMap = getTexture( json.sheenRoughnessMap );

		return material;

	}

	setTextures( value ) {

		this.textures = value;
		return this;

	}

}

class LoaderUtils {

	static decodeText( array ) {

		if ( typeof TextDecoder !== 'undefined' ) {

			return new TextDecoder().decode( array );

		}

		// Avoid the String.fromCharCode.apply(null, array) shortcut, which
		// throws a "maximum call stack size exceeded" error for large arrays.

		let s = '';

		for ( let i = 0, il = array.length; i < il; i ++ ) {

			// Implicitly assumes little-endian.
			s += String.fromCharCode( array[ i ] );

		}

		try {

			// merges multi-byte utf-8 characters.

			return decodeURIComponent( escape( s ) );

		} catch ( e ) { // see #16358

			return s;

		}

	}

	static extractUrlBase( url ) {

		const index = url.lastIndexOf( '/' );

		if ( index === - 1 ) return './';

		return url.substr( 0, index + 1 );

	}

	static resolveURL( url, path ) {

		// Invalid URL
		if ( typeof url !== 'string' || url === '' ) return '';

		// Host Relative URL
		if ( /^https?:\/\//i.test( path ) && /^\//.test( url ) ) {

			path = path.replace( /(^https?:\/\/[^\/]+).*/i, '$1' );

		}

		// Absolute URL http://,https://,//
		if ( /^(https?:)?\/\//i.test( url ) ) return url;

		// Data URI
		if ( /^data:.*,.*$/i.test( url ) ) return url;

		// Blob URL
		if ( /^blob:.*$/i.test( url ) ) return url;

		// Relative URL
		return path + url;

	}

}

class InstancedBufferGeometry extends BufferGeometry {

	constructor() {

		super();

		this.type = 'InstancedBufferGeometry';
		this.instanceCount = Infinity;

	}

	copy( source ) {

		super.copy( source );

		this.instanceCount = source.instanceCount;

		return this;

	}

	clone() {

		return new this.constructor().copy( this );

	}

	toJSON() {

		const data = super.toJSON( this );

		data.instanceCount = this.instanceCount;

		data.isInstancedBufferGeometry = true;

		return data;

	}

}

InstancedBufferGeometry.prototype.isInstancedBufferGeometry = true;

class BufferGeometryLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( url, onLoad, onProgress, onError ) {

		const scope = this;

		const loader = new FileLoader( scope.manager );
		loader.setPath( scope.path );
		loader.setRequestHeader( scope.requestHeader );
		loader.setWithCredentials( scope.withCredentials );
		loader.load( url, function ( text ) {

			try {

				onLoad( scope.parse( JSON.parse( text ) ) );

			} catch ( e ) {

				if ( onError ) {

					onError( e );

				} else {

					console.error( e );

				}

				scope.manager.itemError( url );

			}

		}, onProgress, onError );

	}

	parse( json ) {

		const interleavedBufferMap = {};
		const arrayBufferMap = {};

		function getInterleavedBuffer( json, uuid ) {

			if ( interleavedBufferMap[ uuid ] !== undefined ) return interleavedBufferMap[ uuid ];

			const interleavedBuffers = json.interleavedBuffers;
			const interleavedBuffer = interleavedBuffers[ uuid ];

			const buffer = getArrayBuffer( json, interleavedBuffer.buffer );

			const array = getTypedArray( interleavedBuffer.type, buffer );
			const ib = new InterleavedBuffer( array, interleavedBuffer.stride );
			ib.uuid = interleavedBuffer.uuid;

			interleavedBufferMap[ uuid ] = ib;

			return ib;

		}

		function getArrayBuffer( json, uuid ) {

			if ( arrayBufferMap[ uuid ] !== undefined ) return arrayBufferMap[ uuid ];

			const arrayBuffers = json.arrayBuffers;
			const arrayBuffer = arrayBuffers[ uuid ];

			const ab = new Uint32Array( arrayBuffer ).buffer;

			arrayBufferMap[ uuid ] = ab;

			return ab;

		}

		const geometry = json.isInstancedBufferGeometry ? new InstancedBufferGeometry() : new BufferGeometry();

		const index = json.data.index;

		if ( index !== undefined ) {

			const typedArray = getTypedArray( index.type, index.array );
			geometry.setIndex( new BufferAttribute( typedArray, 1 ) );

		}

		const attributes = json.data.attributes;

		for ( const key in attributes ) {

			const attribute = attributes[ key ];
			let bufferAttribute;

			if ( attribute.isInterleavedBufferAttribute ) {

				const interleavedBuffer = getInterleavedBuffer( json.data, attribute.data );
				bufferAttribute = new InterleavedBufferAttribute( interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized );

			} else {

				const typedArray = getTypedArray( attribute.type, attribute.array );
				const bufferAttributeConstr = attribute.isInstancedBufferAttribute ? InstancedBufferAttribute : BufferAttribute;
				bufferAttribute = new bufferAttributeConstr( typedArray, attribute.itemSize, attribute.normalized );

			}

			if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name;
			if ( attribute.usage !== undefined ) bufferAttribute.setUsage( attribute.usage );

			if ( attribute.updateRange !== undefined ) {

				bufferAttribute.updateRange.offset = attribute.updateRange.offset;
				bufferAttribute.updateRange.count = attribute.updateRange.count;

			}

			geometry.setAttribute( key, bufferAttribute );

		}

		const morphAttributes = json.data.morphAttributes;

		if ( morphAttributes ) {

			for ( const key in morphAttributes ) {

				const attributeArray = morphAttributes[ key ];

				const array = [];

				for ( let i = 0, il = attributeArray.length; i < il; i ++ ) {

					const attribute = attributeArray[ i ];
					let bufferAttribute;

					if ( attribute.isInterleavedBufferAttribute ) {

						const interleavedBuffer = getInterleavedBuffer( json.data, attribute.data );
						bufferAttribute = new InterleavedBufferAttribute( interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized );

					} else {

						const typedArray = getTypedArray( attribute.type, attribute.array );
						bufferAttribute = new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized );

					}

					if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name;
					array.push( bufferAttribute );

				}

				geometry.morphAttributes[ key ] = array;

			}

		}

		const morphTargetsRelative = json.data.morphTargetsRelative;

		if ( morphTargetsRelative ) {

			geometry.morphTargetsRelative = true;

		}

		const groups = json.data.groups || json.data.drawcalls || json.data.offsets;

		if ( groups !== undefined ) {

			for ( let i = 0, n = groups.length; i !== n; ++ i ) {

				const group = groups[ i ];

				geometry.addGroup( group.start, group.count, group.materialIndex );

			}

		}

		const boundingSphere = json.data.boundingSphere;

		if ( boundingSphere !== undefined ) {

			const center = new Vector3();

			if ( boundingSphere.center !== undefined ) {

				center.fromArray( boundingSphere.center );

			}

			geometry.boundingSphere = new Sphere( center, boundingSphere.radius );

		}

		if ( json.name ) geometry.name = json.name;
		if ( json.userData ) geometry.userData = json.userData;

		return geometry;

	}

}

class ObjectLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( url, onLoad, onProgress, onError ) {

		const scope = this;

		const path = ( this.path === '' ) ? LoaderUtils.extractUrlBase( url ) : this.path;
		this.resourcePath = this.resourcePath || path;

		const loader = new FileLoader( this.manager );
		loader.setPath( this.path );
		loader.setRequestHeader( this.requestHeader );
		loader.setWithCredentials( this.withCredentials );
		loader.load( url, function ( text ) {

			let json = null;

			try {

				json = JSON.parse( text );

			} catch ( error ) {

				if ( onError !== undefined ) onError( error );

				console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message );

				return;

			}

			const metadata = json.metadata;

			if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {

				console.error( 'THREE.ObjectLoader: Can\'t load ' + url );
				return;

			}

			scope.parse( json, onLoad );

		}, onProgress, onError );

	}

	async loadAsync( url, onProgress ) {

		const scope = this;

		const path = ( this.path === '' ) ? LoaderUtils.extractUrlBase( url ) : this.path;
		this.resourcePath = this.resourcePath || path;

		const loader = new FileLoader( this.manager );
		loader.setPath( this.path );
		loader.setRequestHeader( this.requestHeader );
		loader.setWithCredentials( this.withCredentials );

		const text = await loader.loadAsync( url, onProgress );

		const json = JSON.parse( text );

		const metadata = json.metadata;

		if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {

			throw new Error( 'THREE.ObjectLoader: Can\'t load ' + url );

		}

		return await scope.parseAsync( json );

	}

	parse( json, onLoad ) {

		const animations = this.parseAnimations( json.animations );
		const shapes = this.parseShapes( json.shapes );
		const geometries = this.parseGeometries( json.geometries, shapes );

		const images = this.parseImages( json.images, function () {

			if ( onLoad !== undefined ) onLoad( object );

		} );

		const textures = this.parseTextures( json.textures, images );
		const materials = this.parseMaterials( json.materials, textures );

		const object = this.parseObject( json.object, geometries, materials, textures, animations );
		const skeletons = this.parseSkeletons( json.skeletons, object );

		this.bindSkeletons( object, skeletons );

		//

		if ( onLoad !== undefined ) {

			let hasImages = false;

			for ( const uuid in images ) {

				if ( images[ uuid ] instanceof HTMLImageElement ) {

					hasImages = true;
					break;

				}

			}

			if ( hasImages === false ) onLoad( object );

		}

		return object;

	}

	async parseAsync( json ) {

		const animations = this.parseAnimations( json.animations );
		const shapes = this.parseShapes( json.shapes );
		const geometries = this.parseGeometries( json.geometries, shapes );

		const images = await this.parseImagesAsync( json.images );

		const textures = this.parseTextures( json.textures, images );
		const materials = this.parseMaterials( json.materials, textures );

		const object = this.parseObject( json.object, geometries, materials, textures, animations );
		const skeletons = this.parseSkeletons( json.skeletons, object );

		this.bindSkeletons( object, skeletons );

		return object;

	}

	parseShapes( json ) {

		const shapes = {};

		if ( json !== undefined ) {

			for ( let i = 0, l = json.length; i < l; i ++ ) {

				const shape = new Shape().fromJSON( json[ i ] );

				shapes[ shape.uuid ] = shape;

			}

		}

		return shapes;

	}

	parseSkeletons( json, object ) {

		const skeletons = {};
		const bones = {};

		// generate bone lookup table

		object.traverse( function ( child ) {

			if ( child.isBone ) bones[ child.uuid ] = child;

		} );

		// create skeletons

		if ( json !== undefined ) {

			for ( let i = 0, l = json.length; i < l; i ++ ) {

				const skeleton = new Skeleton().fromJSON( json[ i ], bones );

				skeletons[ skeleton.uuid ] = skeleton;

			}

		}

		return skeletons;

	}

	parseGeometries( json, shapes ) {

		const geometries = {};

		if ( json !== undefined ) {

			const bufferGeometryLoader = new BufferGeometryLoader();

			for ( let i = 0, l = json.length; i < l; i ++ ) {

				let geometry;
				const data = json[ i ];

				switch ( data.type ) {

					case 'BufferGeometry':
					case 'InstancedBufferGeometry':

						geometry = bufferGeometryLoader.parse( data );

						break;

					case 'Geometry':

						console.error( 'THREE.ObjectLoader: The legacy Geometry type is no longer supported.' );

						break;

					default:

						if ( data.type in Geometries ) {

							geometry = Geometries[ data.type ].fromJSON( data, shapes );

						} else {

							console.warn( `THREE.ObjectLoader: Unsupported geometry type "${ data.type }"` );

						}

				}

				geometry.uuid = data.uuid;

				if ( data.name !== undefined ) geometry.name = data.name;
				if ( geometry.isBufferGeometry === true && data.userData !== undefined ) geometry.userData = data.userData;

				geometries[ data.uuid ] = geometry;

			}

		}

		return geometries;

	}

	parseMaterials( json, textures ) {

		const cache = {}; // MultiMaterial
		const materials = {};

		if ( json !== undefined ) {

			const loader = new MaterialLoader();
			loader.setTextures( textures );

			for ( let i = 0, l = json.length; i < l; i ++ ) {

				const data = json[ i ];

				if ( data.type === 'MultiMaterial' ) {

					// Deprecated

					const array = [];

					for ( let j = 0; j < data.materials.length; j ++ ) {

						const material = data.materials[ j ];

						if ( cache[ material.uuid ] === undefined ) {

							cache[ material.uuid ] = loader.parse( material );

						}

						array.push( cache[ material.uuid ] );

					}

					materials[ data.uuid ] = array;

				} else {

					if ( cache[ data.uuid ] === undefined ) {

						cache[ data.uuid ] = loader.parse( data );

					}

					materials[ data.uuid ] = cache[ data.uuid ];

				}

			}

		}

		return materials;

	}

	parseAnimations( json ) {

		const animations = {};

		if ( json !== undefined ) {

			for ( let i = 0; i < json.length; i ++ ) {

				const data = json[ i ];

				const clip = AnimationClip.parse( data );

				animations[ clip.uuid ] = clip;

			}

		}

		return animations;

	}

	parseImages( json, onLoad ) {

		const scope = this;
		const images = {};

		let loader;

		function loadImage( url ) {

			scope.manager.itemStart( url );

			return loader.load( url, function () {

				scope.manager.itemEnd( url );

			}, undefined, function () {

				scope.manager.itemError( url );
				scope.manager.itemEnd( url );

			} );

		}

		function deserializeImage( image ) {

			if ( typeof image === 'string' ) {

				const url = image;

				const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( url ) ? url : scope.resourcePath + url;

				return loadImage( path );

			} else {

				if ( image.data ) {

					return {
						data: getTypedArray( image.type, image.data ),
						width: image.width,
						height: image.height
					};

				} else {

					return null;

				}

			}

		}

		if ( json !== undefined && json.length > 0 ) {

			const manager = new LoadingManager( onLoad );

			loader = new ImageLoader( manager );
			loader.setCrossOrigin( this.crossOrigin );

			for ( let i = 0, il = json.length; i < il; i ++ ) {

				const image = json[ i ];
				const url = image.url;

				if ( Array.isArray( url ) ) {

					// load array of images e.g CubeTexture

					images[ image.uuid ] = [];

					for ( let j = 0, jl = url.length; j < jl; j ++ ) {

						const currentUrl = url[ j ];

						const deserializedImage = deserializeImage( currentUrl );

						if ( deserializedImage !== null ) {

							if ( deserializedImage instanceof HTMLImageElement ) {

								images[ image.uuid ].push( deserializedImage );

							} else {

								// special case: handle array of data textures for cube textures

								images[ image.uuid ].push( new DataTexture( deserializedImage.data, deserializedImage.width, deserializedImage.height ) );

							}

						}

					}

				} else {

					// load single image

					const deserializedImage = deserializeImage( image.url );

					if ( deserializedImage !== null ) {

						images[ image.uuid ] = deserializedImage;

					}

				}

			}

		}

		return images;

	}

	async parseImagesAsync( json ) {

		const scope = this;
		const images = {};

		let loader;

		async function deserializeImage( image ) {

			if ( typeof image === 'string' ) {

				const url = image;

				const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( url ) ? url : scope.resourcePath + url;

				return await loader.loadAsync( path );

			} else {

				if ( image.data ) {

					return {
						data: getTypedArray( image.type, image.data ),
						width: image.width,
						height: image.height
					};

				} else {

					return null;

				}

			}

		}

		if ( json !== undefined && json.length > 0 ) {

			loader = new ImageLoader( this.manager );
			loader.setCrossOrigin( this.crossOrigin );

			for ( let i = 0, il = json.length; i < il; i ++ ) {

				const image = json[ i ];
				const url = image.url;

				if ( Array.isArray( url ) ) {

					// load array of images e.g CubeTexture

					images[ image.uuid ] = [];

					for ( let j = 0, jl = url.length; j < jl; j ++ ) {

						const currentUrl = url[ j ];

						const deserializedImage = await deserializeImage( currentUrl );

						if ( deserializedImage !== null ) {

							if ( deserializedImage instanceof HTMLImageElement ) {

								images[ image.uuid ].push( deserializedImage );

							} else {

								// special case: handle array of data textures for cube textures

								images[ image.uuid ].push( new DataTexture( deserializedImage.data, deserializedImage.width, deserializedImage.height ) );

							}

						}

					}

				} else {

					// load single image

					const deserializedImage = await deserializeImage( image.url );

					if ( deserializedImage !== null ) {

						images[ image.uuid ] = deserializedImage;

					}

				}

			}

		}

		return images;

	}

	parseTextures( json, images ) {

		function parseConstant( value, type ) {

			if ( typeof value === 'number' ) return value;

			console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );

			return type[ value ];

		}

		const textures = {};

		if ( json !== undefined ) {

			for ( let i = 0, l = json.length; i < l; i ++ ) {

				const data = json[ i ];

				if ( data.image === undefined ) {

					console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid );

				}

				if ( images[ data.image ] === undefined ) {

					console.warn( 'THREE.ObjectLoader: Undefined image', data.image );

				}

				let texture;
				const image = images[ data.image ];

				if ( Array.isArray( image ) ) {

					texture = new CubeTexture( image );

					if ( image.length === 6 ) texture.needsUpdate = true;

				} else {

					if ( image && image.data ) {

						texture = new DataTexture( image.data, image.width, image.height );

					} else {

						texture = new Texture( image );

					}

					if ( image ) texture.needsUpdate = true; // textures can have undefined image data

				}

				texture.uuid = data.uuid;

				if ( data.name !== undefined ) texture.name = data.name;

				if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );

				if ( data.offset !== undefined ) texture.offset.fromArray( data.offset );
				if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );
				if ( data.center !== undefined ) texture.center.fromArray( data.center );
				if ( data.rotation !== undefined ) texture.rotation = data.rotation;

				if ( data.wrap !== undefined ) {

					texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );
					texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );

				}

				if ( data.format !== undefined ) texture.format = data.format;
				if ( data.type !== undefined ) texture.type = data.type;
				if ( data.encoding !== undefined ) texture.encoding = data.encoding;

				if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );
				if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );
				if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;

				if ( data.flipY !== undefined ) texture.flipY = data.flipY;

				if ( data.premultiplyAlpha !== undefined ) texture.premultiplyAlpha = data.premultiplyAlpha;
				if ( data.unpackAlignment !== undefined ) texture.unpackAlignment = data.unpackAlignment;

				if ( data.userData !== undefined ) texture.userData = data.userData;

				textures[ data.uuid ] = texture;

			}

		}

		return textures;

	}

	parseObject( data, geometries, materials, textures, animations ) {

		let object;

		function getGeometry( name ) {

			if ( geometries[ name ] === undefined ) {

				console.warn( 'THREE.ObjectLoader: Undefined geometry', name );

			}

			return geometries[ name ];

		}

		function getMaterial( name ) {

			if ( name === undefined ) return undefined;

			if ( Array.isArray( name ) ) {

				const array = [];

				for ( let i = 0, l = name.length; i < l; i ++ ) {

					const uuid = name[ i ];

					if ( materials[ uuid ] === undefined ) {

						console.warn( 'THREE.ObjectLoader: Undefined material', uuid );

					}

					array.push( materials[ uuid ] );

				}

				return array;

			}

			if ( materials[ name ] === undefined ) {

				console.warn( 'THREE.ObjectLoader: Undefined material', name );

			}

			return materials[ name ];

		}

		function getTexture( uuid ) {

			if ( textures[ uuid ] === undefined ) {

				console.warn( 'THREE.ObjectLoader: Undefined texture', uuid );

			}

			return textures[ uuid ];

		}

		let geometry, material;

		switch ( data.type ) {

			case 'Scene':

				object = new Scene();

				if ( data.background !== undefined ) {

					if ( Number.isInteger( data.background ) ) {

						object.background = new Color( data.background );

					} else {

						object.background = getTexture( data.background );

					}

				}

				if ( data.environment !== undefined ) {

					object.environment = getTexture( data.environment );

				}

				if ( data.fog !== undefined ) {

					if ( data.fog.type === 'Fog' ) {

						object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );

					} else if ( data.fog.type === 'FogExp2' ) {

						object.fog = new FogExp2( data.fog.color, data.fog.density );

					}

				}

				break;

			case 'PerspectiveCamera':

				object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );

				if ( data.focus !== undefined ) object.focus = data.focus;
				if ( data.zoom !== undefined ) object.zoom = data.zoom;
				if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;
				if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;
				if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );

				break;

			case 'OrthographicCamera':

				object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );

				if ( data.zoom !== undefined ) object.zoom = data.zoom;
				if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );

				break;

			case 'AmbientLight':

				object = new AmbientLight( data.color, data.intensity );

				break;

			case 'DirectionalLight':

				object = new DirectionalLight( data.color, data.intensity );

				break;

			case 'PointLight':

				object = new PointLight( data.color, data.intensity, data.distance, data.decay );

				break;

			case 'RectAreaLight':

				object = new RectAreaLight( data.color, data.intensity, data.width, data.height );

				break;

			case 'SpotLight':

				object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );

				break;

			case 'HemisphereLight':

				object = new HemisphereLight( data.color, data.groundColor, data.intensity );

				break;

			case 'LightProbe':

				object = new LightProbe().fromJSON( data );

				break;

			case 'SkinnedMesh':

				geometry = getGeometry( data.geometry );
			 	material = getMaterial( data.material );

				object = new SkinnedMesh( geometry, material );

				if ( data.bindMode !== undefined ) object.bindMode = data.bindMode;
				if ( data.bindMatrix !== undefined ) object.bindMatrix.fromArray( data.bindMatrix );
				if ( data.skeleton !== undefined ) object.skeleton = data.skeleton;

				break;

			case 'Mesh':

				geometry = getGeometry( data.geometry );
				material = getMaterial( data.material );

				object = new Mesh( geometry, material );

				break;

			case 'InstancedMesh':

				geometry = getGeometry( data.geometry );
				material = getMaterial( data.material );
				const count = data.count;
				const instanceMatrix = data.instanceMatrix;
				const instanceColor = data.instanceColor;

				object = new InstancedMesh( geometry, material, count );
				object.instanceMatrix = new InstancedBufferAttribute( new Float32Array( instanceMatrix.array ), 16 );
				if ( instanceColor !== undefined ) object.instanceColor = new InstancedBufferAttribute( new Float32Array( instanceColor.array ), instanceColor.itemSize );

				break;

			case 'LOD':

				object = new LOD();

				break;

			case 'Line':

				object = new Line( getGeometry( data.geometry ), getMaterial( data.material ) );

				break;

			case 'LineLoop':

				object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );

				break;

			case 'LineSegments':

				object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );

				break;

			case 'PointCloud':
			case 'Points':

				object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );

				break;

			case 'Sprite':

				object = new Sprite( getMaterial( data.material ) );

				break;

			case 'Group':

				object = new Group();

				break;

			case 'Bone':

				object = new Bone();

				break;

			default:

				object = new Object3D();

		}

		object.uuid = data.uuid;

		if ( data.name !== undefined ) object.name = data.name;

		if ( data.matrix !== undefined ) {

			object.matrix.fromArray( data.matrix );

			if ( data.matrixAutoUpdate !== undefined ) object.matrixAutoUpdate = data.matrixAutoUpdate;
			if ( object.matrixAutoUpdate ) object.matrix.decompose( object.position, object.quaternion, object.scale );

		} else {

			if ( data.position !== undefined ) object.position.fromArray( data.position );
			if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );
			if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );
			if ( data.scale !== undefined ) object.scale.fromArray( data.scale );

		}

		if ( data.castShadow !== undefined ) object.castShadow = data.castShadow;
		if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;

		if ( data.shadow ) {

			if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;
			if ( data.shadow.normalBias !== undefined ) object.shadow.normalBias = data.shadow.normalBias;
			if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;
			if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );
			if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );

		}

		if ( data.visible !== undefined ) object.visible = data.visible;
		if ( data.frustumCulled !== undefined ) object.frustumCulled = data.frustumCulled;
		if ( data.renderOrder !== undefined ) object.renderOrder = data.renderOrder;
		if ( data.userData !== undefined ) object.userData = data.userData;
		if ( data.layers !== undefined ) object.layers.mask = data.layers;

		if ( data.children !== undefined ) {

			const children = data.children;

			for ( let i = 0; i < children.length; i ++ ) {

				object.add( this.parseObject( children[ i ], geometries, materials, textures, animations ) );

			}

		}

		if ( data.animations !== undefined ) {

			const objectAnimations = data.animations;

			for ( let i = 0; i < objectAnimations.length; i ++ ) {

				const uuid = objectAnimations[ i ];

				object.animations.push( animations[ uuid ] );

			}

		}

		if ( data.type === 'LOD' ) {

			if ( data.autoUpdate !== undefined ) object.autoUpdate = data.autoUpdate;

			const levels = data.levels;

			for ( let l = 0; l < levels.length; l ++ ) {

				const level = levels[ l ];
				const child = object.getObjectByProperty( 'uuid', level.object );

				if ( child !== undefined ) {

					object.addLevel( child, level.distance );

				}

			}

		}

		return object;

	}

	bindSkeletons( object, skeletons ) {

		if ( Object.keys( skeletons ).length === 0 ) return;

		object.traverse( function ( child ) {

			if ( child.isSkinnedMesh === true && child.skeleton !== undefined ) {

				const skeleton = skeletons[ child.skeleton ];

				if ( skeleton === undefined ) {

					console.warn( 'THREE.ObjectLoader: No skeleton found with UUID:', child.skeleton );

				} else {

					child.bind( skeleton, child.bindMatrix );

				}

			}

		} );

	}

	/* DEPRECATED */

	setTexturePath( value ) {

		console.warn( 'THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath().' );
		return this.setResourcePath( value );

	}

}

const TEXTURE_MAPPING = {
	UVMapping: UVMapping,
	CubeReflectionMapping: CubeReflectionMapping,
	CubeRefractionMapping: CubeRefractionMapping,
	EquirectangularReflectionMapping: EquirectangularReflectionMapping,
	EquirectangularRefractionMapping: EquirectangularRefractionMapping,
	CubeUVReflectionMapping: CubeUVReflectionMapping,
	CubeUVRefractionMapping: CubeUVRefractionMapping
};

const TEXTURE_WRAPPING = {
	RepeatWrapping: RepeatWrapping,
	ClampToEdgeWrapping: ClampToEdgeWrapping,
	MirroredRepeatWrapping: MirroredRepeatWrapping
};

const TEXTURE_FILTER = {
	NearestFilter: NearestFilter,
	NearestMipmapNearestFilter: NearestMipmapNearestFilter,
	NearestMipmapLinearFilter: NearestMipmapLinearFilter,
	LinearFilter: LinearFilter,
	LinearMipmapNearestFilter: LinearMipmapNearestFilter,
	LinearMipmapLinearFilter: LinearMipmapLinearFilter
};

class ImageBitmapLoader extends Loader {

	constructor( manager ) {

		super( manager );

		if ( typeof createImageBitmap === 'undefined' ) {

			console.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' );

		}

		if ( typeof fetch === 'undefined' ) {

			console.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' );

		}

		this.options = { premultiplyAlpha: 'none' };

	}

	setOptions( options ) {

		this.options = options;

		return this;

	}

	load( url, onLoad, onProgress, onError ) {

		if ( url === undefined ) url = '';

		if ( this.path !== undefined ) url = this.path + url;

		url = this.manager.resolveURL( url );

		const scope = this;

		const cached = Cache.get( url );

		if ( cached !== undefined ) {

			scope.manager.itemStart( url );

			setTimeout( function () {

				if ( onLoad ) onLoad( cached );

				scope.manager.itemEnd( url );

			}, 0 );

			return cached;

		}

		const fetchOptions = {};
		fetchOptions.credentials = ( this.crossOrigin === 'anonymous' ) ? 'same-origin' : 'include';
		fetchOptions.headers = this.requestHeader;

		fetch( url, fetchOptions ).then( function ( res ) {

			return res.blob();

		} ).then( function ( blob ) {

			return createImageBitmap( blob, Object.assign( scope.options, { colorSpaceConversion: 'none' } ) );

		} ).then( function ( imageBitmap ) {

			Cache.add( url, imageBitmap );

			if ( onLoad ) onLoad( imageBitmap );

			scope.manager.itemEnd( url );

		} ).catch( function ( e ) {

			if ( onError ) onError( e );

			scope.manager.itemError( url );
			scope.manager.itemEnd( url );

		} );

		scope.manager.itemStart( url );

	}

}

ImageBitmapLoader.prototype.isImageBitmapLoader = true;

let _context;

const AudioContext = {

	getContext: function () {

		if ( _context === undefined ) {

			_context = new ( window.AudioContext || window.webkitAudioContext )();

		}

		return _context;

	},

	setContext: function ( value ) {

		_context = value;

	}

};

class AudioLoader extends Loader {

	constructor( manager ) {

		super( manager );

	}

	load( url, onLoad, onProgress, onError ) {

		const scope = this;

		const loader = new FileLoader( this.manager );
		loader.setResponseType( 'arraybuffer' );
		loader.setPath( this.path );
		loader.setRequestHeader( this.requestHeader );
		loader.setWithCredentials( this.withCredentials );
		loader.load( url, function ( buffer ) {

			try {

				// Create a copy of the buffer. The `decodeAudioData` method
				// detaches the buffer when complete, preventing reuse.
				const bufferCopy = buffer.slice( 0 );

				const context = AudioContext.getContext();
				context.decodeAudioData( bufferCopy, function ( audioBuffer ) {

					onLoad( audioBuffer );

				} );

			} catch ( e ) {

				if ( onError ) {

					onError( e );

				} else {

					console.error( e );

				}

				scope.manager.itemError( url );

			}

		}, onProgress, onError );

	}

}

class HemisphereLightProbe extends LightProbe {

	constructor( skyColor, groundColor, intensity = 1 ) {

		super( undefined, intensity );

		const color1 = new Color().set( skyColor );
		const color2 = new Color().set( groundColor );

		const sky = new Vector3( color1.r, color1.g, color1.b );
		const ground = new Vector3( color2.r, color2.g, color2.b );

		// without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI );
		const c0 = Math.sqrt( Math.PI );
		const c1 = c0 * Math.sqrt( 0.75 );

		this.sh.coefficients[ 0 ].copy( sky ).add( ground ).multiplyScalar( c0 );
		this.sh.coefficients[ 1 ].copy( sky ).sub( ground ).multiplyScalar( c1 );

	}

}

HemisphereLightProbe.prototype.isHemisphereLightProbe = true;

class AmbientLightProbe extends LightProbe {

	constructor( color, intensity = 1 ) {

		super( undefined, intensity );

		const color1 = new Color().set( color );

		// without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI );
		this.sh.coefficients[ 0 ].set( color1.r, color1.g, color1.b ).multiplyScalar( 2 * Math.sqrt( Math.PI ) );

	}

}

AmbientLightProbe.prototype.isAmbientLightProbe = true;

const _eyeRight = /*@__PURE__*/ new Matrix4();
const _eyeLeft = /*@__PURE__*/ new Matrix4();
const _projectionMatrix = /*@__PURE__*/ new Matrix4();

class StereoCamera {

	constructor() {

		this.type = 'StereoCamera';

		this.aspect = 1;

		this.eyeSep = 0.064;

		this.cameraL = new PerspectiveCamera();
		this.cameraL.layers.enable( 1 );
		this.cameraL.matrixAutoUpdate = false;

		this.cameraR = new PerspectiveCamera();
		this.cameraR.layers.enable( 2 );
		this.cameraR.matrixAutoUpdate = false;

		this._cache = {
			focus: null,
			fov: null,
			aspect: null,
			near: null,
			far: null,
			zoom: null,
			eyeSep: null
		};

	}

	update( camera ) {

		const cache = this._cache;

		const needsUpdate = cache.focus !== camera.focus || cache.fov !== camera.fov ||
			cache.aspect !== camera.aspect * this.aspect || cache.near !== camera.near ||
			cache.far !== camera.far || cache.zoom !== camera.zoom || cache.eyeSep !== this.eyeSep;

		if ( needsUpdate ) {

			cache.focus = camera.focus;
			cache.fov = camera.fov;
			cache.aspect = camera.aspect * this.aspect;
			cache.near = camera.near;
			cache.far = camera.far;
			cache.zoom = camera.zoom;
			cache.eyeSep = this.eyeSep;

			// Off-axis stereoscopic effect based on
			// http://paulbourke.net/stereographics/stereorender/

			_projectionMatrix.copy( camera.projectionMatrix );
			const eyeSepHalf = cache.eyeSep / 2;
			const eyeSepOnProjection = eyeSepHalf * cache.near / cache.focus;
			const ymax = ( cache.near * Math.tan( DEG2RAD * cache.fov * 0.5 ) ) / cache.zoom;
			let xmin, xmax;

			// translate xOffset

			_eyeLeft.elements[ 12 ] = - eyeSepHalf;
			_eyeRight.elements[ 12 ] = eyeSepHalf;

			// for left eye

			xmin = - ymax * cache.aspect + eyeSepOnProjection;
			xmax = ymax * cache.aspect + eyeSepOnProjection;

			_projectionMatrix.elements[ 0 ] = 2 * cache.near / ( xmax - xmin );
			_projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

			this.cameraL.projectionMatrix.copy( _projectionMatrix );

			// for right eye

			xmin = - ymax * cache.aspect - eyeSepOnProjection;
			xmax = ymax * cache.aspect - eyeSepOnProjection;

			_projectionMatrix.elements[ 0 ] = 2 * cache.near / ( xmax - xmin );
			_projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

			this.cameraR.projectionMatrix.copy( _projectionMatrix );

		}

		this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( _eyeLeft );
		this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( _eyeRight );

	}

}

class Clock {

	constructor( autoStart = true ) {

		this.autoStart = autoStart;

		this.startTime = 0;
		this.oldTime = 0;
		this.elapsedTime = 0;

		this.running = false;

	}

	start() {

		this.startTime = now();

		this.oldTime = this.startTime;
		this.elapsedTime = 0;
		this.running = true;

	}

	stop() {

		this.getElapsedTime();
		this.running = false;
		this.autoStart = false;

	}

	getElapsedTime() {

		this.getDelta();
		return this.elapsedTime;

	}

	getDelta() {

		let diff = 0;

		if ( this.autoStart && ! this.running ) {

			this.start();
			return 0;

		}

		if ( this.running ) {

			const newTime = now();

			diff = ( newTime - this.oldTime ) / 1000;
			this.oldTime = newTime;

			this.elapsedTime += diff;

		}

		return diff;

	}

}

function now() {

	return ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732

}

const _position$1 = /*@__PURE__*/ new Vector3();
const _quaternion$1 = /*@__PURE__*/ new Quaternion();
const _scale$1 = /*@__PURE__*/ new Vector3();
const _orientation$1 = /*@__PURE__*/ new Vector3();

class AudioListener extends Object3D {

	constructor() {

		super();

		this.type = 'AudioListener';

		this.context = AudioContext.getContext();

		this.gain = this.context.createGain();
		this.gain.connect( this.context.destination );

		this.filter = null;

		this.timeDelta = 0;

		// private

		this._clock = new Clock();

	}

	getInput() {

		return this.gain;

	}

	removeFilter() {

		if ( this.filter !== null ) {

			this.gain.disconnect( this.filter );
			this.filter.disconnect( this.context.destination );
			this.gain.connect( this.context.destination );
			this.filter = null;

		}

		return this;

	}

	getFilter() {

		return this.filter;

	}

	setFilter( value ) {

		if ( this.filter !== null ) {

			this.gain.disconnect( this.filter );
			this.filter.disconnect( this.context.destination );

		} else {

			this.gain.disconnect( this.context.destination );

		}

		this.filter = value;
		this.gain.connect( this.filter );
		this.filter.connect( this.context.destination );

		return this;

	}

	getMasterVolume() {

		return this.gain.gain.value;

	}

	setMasterVolume( value ) {

		this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );

		return this;

	}

	updateMatrixWorld( force ) {

		super.updateMatrixWorld( force );

		const listener = this.context.listener;
		const up = this.up;

		this.timeDelta = this._clock.getDelta();

		this.matrixWorld.decompose( _position$1, _quaternion$1, _scale$1 );

		_orientation$1.set( 0, 0, - 1 ).applyQuaternion( _quaternion$1 );

		if ( listener.positionX ) {

			// code path for Chrome (see #14393)

			const endTime = this.context.currentTime + this.timeDelta;

			listener.positionX.linearRampToValueAtTime( _position$1.x, endTime );
			listener.positionY.linearRampToValueAtTime( _position$1.y, endTime );
			listener.positionZ.linearRampToValueAtTime( _position$1.z, endTime );
			listener.forwardX.linearRampToValueAtTime( _orientation$1.x, endTime );
			listener.forwardY.linearRampToValueAtTime( _orientation$1.y, endTime );
			listener.forwardZ.linearRampToValueAtTime( _orientation$1.z, endTime );
			listener.upX.linearRampToValueAtTime( up.x, endTime );
			listener.upY.linearRampToValueAtTime( up.y, endTime );
			listener.upZ.linearRampToValueAtTime( up.z, endTime );

		} else {

			listener.setPosition( _position$1.x, _position$1.y, _position$1.z );
			listener.setOrientation( _orientation$1.x, _orientation$1.y, _orientation$1.z, up.x, up.y, up.z );

		}

	}

}

class Audio extends Object3D {

	constructor( listener ) {

		super();

		this.type = 'Audio';

		this.listener = listener;
		this.context = listener.context;

		this.gain = this.context.createGain();
		this.gain.connect( listener.getInput() );

		this.autoplay = false;

		this.buffer = null;
		this.detune = 0;
		this.loop = false;
		this.loopStart = 0;
		this.loopEnd = 0;
		this.offset = 0;
		this.duration = undefined;
		this.playbackRate = 1;
		this.isPlaying = false;
		this.hasPlaybackControl = true;
		this.source = null;
		this.sourceType = 'empty';

		this._startedAt = 0;
		this._progress = 0;
		this._connected = false;

		this.filters = [];

	}

	getOutput() {

		return this.gain;

	}

	setNodeSource( audioNode ) {

		this.hasPlaybackControl = false;
		this.sourceType = 'audioNode';
		this.source = audioNode;
		this.connect();

		return this;

	}

	setMediaElementSource( mediaElement ) {

		this.hasPlaybackControl = false;
		this.sourceType = 'mediaNode';
		this.source = this.context.createMediaElementSource( mediaElement );
		this.connect();

		return this;

	}

	setMediaStreamSource( mediaStream ) {

		this.hasPlaybackControl = false;
		this.sourceType = 'mediaStreamNode';
		this.source = this.context.createMediaStreamSource( mediaStream );
		this.connect();

		return this;

	}

	setBuffer( audioBuffer ) {

		this.buffer = audioBuffer;
		this.sourceType = 'buffer';

		if ( this.autoplay ) this.play();

		return this;

	}

	play( delay = 0 ) {

		if ( this.isPlaying === true ) {

			console.warn( 'THREE.Audio: Audio is already playing.' );
			return;

		}

		if ( this.hasPlaybackControl === false ) {

			console.warn( 'THREE.Audio: this Audio has no playback control.' );
			return;

		}

		this._startedAt = this.context.currentTime + delay;

		const source = this.context.createBufferSource();
		source.buffer = this.buffer;
		source.loop = this.loop;
		source.loopStart = this.loopStart;
		source.loopEnd = this.loopEnd;
		source.onended = this.onEnded.bind( this );
		source.start( this._startedAt, this._progress + this.offset, this.duration );

		this.isPlaying = true;

		this.source = source;

		this.setDetune( this.detune );
		this.setPlaybackRate( this.playbackRate );

		return this.connect();

	}

	pause() {

		if ( this.hasPlaybackControl === false ) {

			console.warn( 'THREE.Audio: this Audio has no playback control.' );
			return;

		}

		if ( this.isPlaying === true ) {

			// update current progress

			this._progress += Math.max( this.context.currentTime - this._startedAt, 0 ) * this.playbackRate;

			if ( this.loop === true ) {

				// ensure _progress does not exceed duration with looped audios

				this._progress = this._progress % ( this.duration || this.buffer.duration );

			}

			this.source.stop();
			this.source.onended = null;

			this.isPlaying = false;

		}

		return this;

	}

	stop() {

		if ( this.hasPlaybackControl === false ) {

			console.warn( 'THREE.Audio: this Audio has no playback control.' );
			return;

		}

		this._progress = 0;

		this.source.stop();
		this.source.onended = null;
		this.isPlaying = false;

		return this;

	}

	connect() {

		if ( this.filters.length > 0 ) {

			this.source.connect( this.filters[ 0 ] );

			for ( let i = 1, l = this.filters.length; i < l; i ++ ) {

				this.filters[ i - 1 ].connect( this.filters[ i ] );

			}

			this.filters[ this.filters.length - 1 ].connect( this.getOutput() );

		} else {

			this.source.connect( this.getOutput() );

		}

		this._connected = true;

		return this;

	}

	disconnect() {

		if ( this.filters.length > 0 ) {

			this.source.disconnect( this.filters[ 0 ] );

			for ( let i = 1, l = this.filters.length; i < l; i ++ ) {

				this.filters[ i - 1 ].disconnect( this.filters[ i ] );

			}

			this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );

		} else {

			this.source.disconnect( this.getOutput() );

		}

		this._connected = false;

		return this;

	}

	getFilters() {

		return this.filters;

	}

	setFilters( value ) {

		if ( ! value ) value = [];

		if ( this._connected === true ) {

			this.disconnect();
			this.filters = value.slice();
			this.connect();

		} else {

			this.filters = value.slice();

		}

		return this;

	}

	setDetune( value ) {

		this.detune = value;

		if ( this.source.detune === undefined ) return; // only set detune when available

		if ( this.isPlaying === true ) {

			this.source.detune.setTargetAtTime( this.detune, this.context.currentTime, 0.01 );

		}

		return this;

	}

	getDetune() {

		return this.detune;

	}

	getFilter() {

		return this.getFilters()[ 0 ];

	}

	setFilter( filter ) {

		return this.setFilters( filter ? [ filter ] : [] );

	}

	setPlaybackRate( value ) {

		if ( this.hasPlaybackControl === false ) {

			console.warn( 'THREE.Audio: this Audio has no playback control.' );
			return;

		}

		this.playbackRate = value;

		if ( this.isPlaying === true ) {

			this.source.playbackRate.setTargetAtTime( this.playbackRate, this.context.currentTime, 0.01 );

		}

		return this;

	}

	getPlaybackRate() {

		return this.playbackRate;

	}

	onEnded() {

		this.isPlaying = false;

	}

	getLoop() {

		if ( this.hasPlaybackControl === false ) {

			console.warn( 'THREE.Audio: this Audio has no playback control.' );
			return false;

		}

		return this.loop;

	}

	setLoop( value ) {

		if ( this.hasPlaybackControl === false ) {

			console.warn( 'THREE.Audio: this Audio has no playback control.' );
			return;

		}

		this.loop = value;

		if ( this.isPlaying === true ) {

			this.source.loop = this.loop;

		}

		return this;

	}

	setLoopStart( value ) {

		this.loopStart = value;

		return this;

	}

	setLoopEnd( value ) {

		this.loopEnd = value;

		return this;

	}

	getVolume() {

		return this.gain.gain.value;

	}

	setVolume( value ) {

		this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );

		return this;

	}

}

const _position = /*@__PURE__*/ new Vector3();
const _quaternion = /*@__PURE__*/ new Quaternion();
const _scale = /*@__PURE__*/ new Vector3();
const _orientation = /*@__PURE__*/ new Vector3();

class PositionalAudio extends Audio {

	constructor( listener ) {

		super( listener );

		this.panner = this.context.createPanner();
		this.panner.panningModel = 'HRTF';
		this.panner.connect( this.gain );

	}

	getOutput() {

		return this.panner;

	}

	getRefDistance() {

		return this.panner.refDistance;

	}

	setRefDistance( value ) {

		this.panner.refDistance = value;

		return this;

	}

	getRolloffFactor() {

		return this.panner.rolloffFactor;

	}

	setRolloffFactor( value ) {

		this.panner.rolloffFactor = value;

		return this;

	}

	getDistanceModel() {

		return this.panner.distanceModel;

	}

	setDistanceModel( value ) {

		this.panner.distanceModel = value;

		return this;

	}

	getMaxDistance() {

		return this.panner.maxDistance;

	}

	setMaxDistance( value ) {

		this.panner.maxDistance = value;

		return this;

	}

	setDirectionalCone( coneInnerAngle, coneOuterAngle, coneOuterGain ) {

		this.panner.coneInnerAngle = coneInnerAngle;
		this.panner.coneOuterAngle = coneOuterAngle;
		this.panner.coneOuterGain = coneOuterGain;

		return this;

	}

	updateMatrixWorld( force ) {

		super.updateMatrixWorld( force );

		if ( this.hasPlaybackControl === true && this.isPlaying === false ) return;

		this.matrixWorld.decompose( _position, _quaternion, _scale );

		_orientation.set( 0, 0, 1 ).applyQuaternion( _quaternion );

		const panner = this.panner;

		if ( panner.positionX ) {

			// code path for Chrome and Firefox (see #14393)

			const endTime = this.context.currentTime + this.listener.timeDelta;

			panner.positionX.linearRampToValueAtTime( _position.x, endTime );
			panner.positionY.linearRampToValueAtTime( _position.y, endTime );
			panner.positionZ.linearRampToValueAtTime( _position.z, endTime );
			panner.orientationX.linearRampToValueAtTime( _orientation.x, endTime );
			panner.orientationY.linearRampToValueAtTime( _orientation.y, endTime );
			panner.orientationZ.linearRampToValueAtTime( _orientation.z, endTime );

		} else {

			panner.setPosition( _position.x, _position.y, _position.z );
			panner.setOrientation( _orientation.x, _orientation.y, _orientation.z );

		}

	}

}

class AudioAnalyser {

	constructor( audio, fftSize = 2048 ) {

		this.analyser = audio.context.createAnalyser();
		this.analyser.fftSize = fftSize;

		this.data = new Uint8Array( this.analyser.frequencyBinCount );

		audio.getOutput().connect( this.analyser );

	}


	getFrequencyData() {

		this.analyser.getByteFrequencyData( this.data );

		return this.data;

	}

	getAverageFrequency() {

		let value = 0;
		const data = this.getFrequencyData();

		for ( let i = 0; i < data.length; i ++ ) {

			value += data[ i ];

		}

		return value / data.length;

	}

}

class PropertyMixer {

	constructor( binding, typeName, valueSize ) {

		this.binding = binding;
		this.valueSize = valueSize;

		let mixFunction,
			mixFunctionAdditive,
			setIdentity;

		// buffer layout: [ incoming | accu0 | accu1 | orig | addAccu | (optional work) ]
		//
		// interpolators can use .buffer as their .result
		// the data then goes to 'incoming'
		//
		// 'accu0' and 'accu1' are used frame-interleaved for
		// the cumulative result and are compared to detect
		// changes
		//
		// 'orig' stores the original state of the property
		//
		// 'add' is used for additive cumulative results
		//
		// 'work' is optional and is only present for quaternion types. It is used
		// to store intermediate quaternion multiplication results

		switch ( typeName ) {

			case 'quaternion':
				mixFunction = this._slerp;
				mixFunctionAdditive = this._slerpAdditive;
				setIdentity = this._setAdditiveIdentityQuaternion;

				this.buffer = new Float64Array( valueSize * 6 );
				this._workIndex = 5;
				break;

			case 'string':
			case 'bool':
				mixFunction = this._select;

				// Use the regular mix function and for additive on these types,
				// additive is not relevant for non-numeric types
				mixFunctionAdditive = this._select;

				setIdentity = this._setAdditiveIdentityOther;

				this.buffer = new Array( valueSize * 5 );
				break;

			default:
				mixFunction = this._lerp;
				mixFunctionAdditive = this._lerpAdditive;
				setIdentity = this._setAdditiveIdentityNumeric;

				this.buffer = new Float64Array( valueSize * 5 );

		}

		this._mixBufferRegion = mixFunction;
		this._mixBufferRegionAdditive = mixFunctionAdditive;
		this._setIdentity = setIdentity;
		this._origIndex = 3;
		this._addIndex = 4;

		this.cumulativeWeight = 0;
		this.cumulativeWeightAdditive = 0;

		this.useCount = 0;
		this.referenceCount = 0;

	}

	// accumulate data in the 'incoming' region into 'accu<i>'
	accumulate( accuIndex, weight ) {

		// note: happily accumulating nothing when weight = 0, the caller knows
		// the weight and shouldn't have made the call in the first place

		const buffer = this.buffer,
			stride = this.valueSize,
			offset = accuIndex * stride + stride;

		let currentWeight = this.cumulativeWeight;

		if ( currentWeight === 0 ) {

			// accuN := incoming * weight

			for ( let i = 0; i !== stride; ++ i ) {

				buffer[ offset + i ] = buffer[ i ];

			}

			currentWeight = weight;

		} else {

			// accuN := accuN + incoming * weight

			currentWeight += weight;
			const mix = weight / currentWeight;
			this._mixBufferRegion( buffer, offset, 0, mix, stride );

		}

		this.cumulativeWeight = currentWeight;

	}

	// accumulate data in the 'incoming' region into 'add'
	accumulateAdditive( weight ) {

		const buffer = this.buffer,
			stride = this.valueSize,
			offset = stride * this._addIndex;

		if ( this.cumulativeWeightAdditive === 0 ) {

			// add = identity

			this._setIdentity();

		}

		// add := add + incoming * weight

		this._mixBufferRegionAdditive( buffer, offset, 0, weight, stride );
		this.cumulativeWeightAdditive += weight;

	}

	// apply the state of 'accu<i>' to the binding when accus differ
	apply( accuIndex ) {

		const stride = this.valueSize,
			buffer = this.buffer,
			offset = accuIndex * stride + stride,

			weight = this.cumulativeWeight,
			weightAdditive = this.cumulativeWeightAdditive,

			binding = this.binding;

		this.cumulativeWeight = 0;
		this.cumulativeWeightAdditive = 0;

		if ( weight < 1 ) {

			// accuN := accuN + original * ( 1 - cumulativeWeight )

			const originalValueOffset = stride * this._origIndex;

			this._mixBufferRegion(
				buffer, offset, originalValueOffset, 1 - weight, stride );

		}

		if ( weightAdditive > 0 ) {

			// accuN := accuN + additive accuN

			this._mixBufferRegionAdditive( buffer, offset, this._addIndex * stride, 1, stride );

		}

		for ( let i = stride, e = stride + stride; i !== e; ++ i ) {

			if ( buffer[ i ] !== buffer[ i + stride ] ) {

				// value has changed -> update scene graph

				binding.setValue( buffer, offset );
				break;

			}

		}

	}

	// remember the state of the bound property and copy it to both accus
	saveOriginalState() {

		const binding = this.binding;

		const buffer = this.buffer,
			stride = this.valueSize,

			originalValueOffset = stride * this._origIndex;

		binding.getValue( buffer, originalValueOffset );

		// accu[0..1] := orig -- initially detect changes against the original
		for ( let i = stride, e = originalValueOffset; i !== e; ++ i ) {

			buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];

		}

		// Add to identity for additive
		this._setIdentity();

		this.cumulativeWeight = 0;
		this.cumulativeWeightAdditive = 0;

	}

	// apply the state previously taken via 'saveOriginalState' to the binding
	restoreOriginalState() {

		const originalValueOffset = this.valueSize * 3;
		this.binding.setValue( this.buffer, originalValueOffset );

	}

	_setAdditiveIdentityNumeric() {

		const startIndex = this._addIndex * this.valueSize;
		const endIndex = startIndex + this.valueSize;

		for ( let i = startIndex; i < endIndex; i ++ ) {

			this.buffer[ i ] = 0;

		}

	}

	_setAdditiveIdentityQuaternion() {

		this._setAdditiveIdentityNumeric();
		this.buffer[ this._addIndex * this.valueSize + 3 ] = 1;

	}

	_setAdditiveIdentityOther() {

		const startIndex = this._origIndex * this.valueSize;
		const targetIndex = this._addIndex * this.valueSize;

		for ( let i = 0; i < this.valueSize; i ++ ) {

			this.buffer[ targetIndex + i ] = this.buffer[ startIndex + i ];

		}

	}


	// mix functions

	_select( buffer, dstOffset, srcOffset, t, stride ) {

		if ( t >= 0.5 ) {

			for ( let i = 0; i !== stride; ++ i ) {

				buffer[ dstOffset + i ] = buffer[ srcOffset + i ];

			}

		}

	}

	_slerp( buffer, dstOffset, srcOffset, t ) {

		Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );

	}

	_slerpAdditive( buffer, dstOffset, srcOffset, t, stride ) {

		const workOffset = this._workIndex * stride;

		// Store result in intermediate buffer offset
		Quaternion.multiplyQuaternionsFlat( buffer, workOffset, buffer, dstOffset, buffer, srcOffset );

		// Slerp to the intermediate result
		Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, workOffset, t );

	}

	_lerp( buffer, dstOffset, srcOffset, t, stride ) {

		const s = 1 - t;

		for ( let i = 0; i !== stride; ++ i ) {

			const j = dstOffset + i;

			buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;

		}

	}

	_lerpAdditive( buffer, dstOffset, srcOffset, t, stride ) {

		for ( let i = 0; i !== stride; ++ i ) {

			const j = dstOffset + i;

			buffer[ j ] = buffer[ j ] + buffer[ srcOffset + i ] * t;

		}

	}

}

// Characters [].:/ are reserved for track binding syntax.
const _RESERVED_CHARS_RE = '\\[\\]\\.:\\/';
const _reservedRe = new RegExp( '[' + _RESERVED_CHARS_RE + ']', 'g' );

// Attempts to allow node names from any language. ES5's `\w` regexp matches
// only latin characters, and the unicode \p{L} is not yet supported. So
// instead, we exclude reserved characters and match everything else.
const _wordChar = '[^' + _RESERVED_CHARS_RE + ']';
const _wordCharOrDot = '[^' + _RESERVED_CHARS_RE.replace( '\\.', '' ) + ']';

// Parent directories, delimited by '/' or ':'. Currently unused, but must
// be matched to parse the rest of the track name.
const _directoryRe = /((?:WC+[\/:])*)/.source.replace( 'WC', _wordChar );

// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
const _nodeRe = /(WCOD+)?/.source.replace( 'WCOD', _wordCharOrDot );

// Object on target node, and accessor. May not contain reserved
// characters. Accessor may contain any character except closing bracket.
const _objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace( 'WC', _wordChar );

// Property and accessor. May not contain reserved characters. Accessor may
// contain any non-bracket characters.
const _propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace( 'WC', _wordChar );

const _trackRe = new RegExp( ''
	+ '^'
	+ _directoryRe
	+ _nodeRe
	+ _objectRe
	+ _propertyRe
	+ '$'
);

const _supportedObjectNames = [ 'material', 'materials', 'bones' ];

class Composite {

	constructor( targetGroup, path, optionalParsedPath ) {

		const parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );

		this._targetGroup = targetGroup;
		this._bindings = targetGroup.subscribe_( path, parsedPath );

	}

	getValue( array, offset ) {

		this.bind(); // bind all binding

		const firstValidIndex = this._targetGroup.nCachedObjects_,
			binding = this._bindings[ firstValidIndex ];

		// and only call .getValue on the first
		if ( binding !== undefined ) binding.getValue( array, offset );

	}

	setValue( array, offset ) {

		const bindings = this._bindings;

		for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {

			bindings[ i ].setValue( array, offset );

		}

	}

	bind() {

		const bindings = this._bindings;

		for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {

			bindings[ i ].bind();

		}

	}

	unbind() {

		const bindings = this._bindings;

		for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {

			bindings[ i ].unbind();

		}

	}

}

// Note: This class uses a State pattern on a per-method basis:
// 'bind' sets 'this.getValue' / 'setValue' and shadows the
// prototype version of these methods with one that represents
// the bound state. When the property is not found, the methods
// become no-ops.
class PropertyBinding {

	constructor( rootNode, path, parsedPath ) {

		this.path = path;
		this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );

		this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;

		this.rootNode = rootNode;

		// initial state of these methods that calls 'bind'
		this.getValue = this._getValue_unbound;
		this.setValue = this._setValue_unbound;

	}


	static create( root, path, parsedPath ) {

		if ( ! ( root && root.isAnimationObjectGroup ) ) {

			return new PropertyBinding( root, path, parsedPath );

		} else {

			return new PropertyBinding.Composite( root, path, parsedPath );

		}

	}

	/**
	 * Replaces spaces with underscores and removes unsupported characters from
	 * node names, to ensure compatibility with parseTrackName().
	 *
	 * @param {string} name Node name to be sanitized.
	 * @return {string}
	 */
	static sanitizeNodeName( name ) {

		return name.replace( /\s/g, '_' ).replace( _reservedRe, '' );

	}

	static parseTrackName( trackName ) {

		const matches = _trackRe.exec( trackName );

		if ( ! matches ) {

			throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );

		}

		const results = {
			// directoryName: matches[ 1 ], // (tschw) currently unused
			nodeName: matches[ 2 ],
			objectName: matches[ 3 ],
			objectIndex: matches[ 4 ],
			propertyName: matches[ 5 ], // required
			propertyIndex: matches[ 6 ]
		};

		const lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );

		if ( lastDot !== undefined && lastDot !== - 1 ) {

			const objectName = results.nodeName.substring( lastDot + 1 );

			// Object names must be checked against an allowlist. Otherwise, there
			// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
			// 'bar' could be the objectName, or part of a nodeName (which can
			// include '.' characters).
			if ( _supportedObjectNames.indexOf( objectName ) !== - 1 ) {

				results.nodeName = results.nodeName.substring( 0, lastDot );
				results.objectName = objectName;

			}

		}

		if ( results.propertyName === null || results.propertyName.length === 0 ) {

			throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );

		}

		return results;

	}

	static findNode( root, nodeName ) {

		if ( ! nodeName || nodeName === '' || nodeName === '.' || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {

			return root;

		}

		// search into skeleton bones.
		if ( root.skeleton ) {

			const bone = root.skeleton.getBoneByName( nodeName );

			if ( bone !== undefined ) {

				return bone;

			}

		}

		// search into node subtree.
		if ( root.children ) {

			const searchNodeSubtree = function ( children ) {

				for ( let i = 0; i < children.length; i ++ ) {

					const childNode = children[ i ];

					if ( childNode.name === nodeName || childNode.uuid === nodeName ) {

						return childNode;

					}

					const result = searchNodeSubtree( childNode.children );

					if ( result ) return result;

				}

				return null;

			};

			const subTreeNode = searchNodeSubtree( root.children );

			if ( subTreeNode ) {

				return subTreeNode;

			}

		}

		return null;

	}

	// these are used to "bind" a nonexistent property
	_getValue_unavailable() {}
	_setValue_unavailable() {}

	// Getters

	_getValue_direct( buffer, offset ) {

		buffer[ offset ] = this.targetObject[ this.propertyName ];

	}

	_getValue_array( buffer, offset ) {

		const source = this.resolvedProperty;

		for ( let i = 0, n = source.length; i !== n; ++ i ) {

			buffer[ offset ++ ] = source[ i ];

		}

	}

	_getValue_arrayElement( buffer, offset ) {

		buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];

	}

	_getValue_toArray( buffer, offset ) {

		this.resolvedProperty.toArray( buffer, offset );

	}

	// Direct

	_setValue_direct( buffer, offset ) {

		this.targetObject[ this.propertyName ] = buffer[ offset ];

	}

	_setValue_direct_setNeedsUpdate( buffer, offset ) {

		this.targetObject[ this.propertyName ] = buffer[ offset ];
		this.targetObject.needsUpdate = true;

	}

	_setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {

		this.targetObject[ this.propertyName ] = buffer[ offset ];
		this.targetObject.matrixWorldNeedsUpdate = true;

	}

	// EntireArray

	_setValue_array( buffer, offset ) {

		const dest = this.resolvedProperty;

		for ( let i = 0, n = dest.length; i !== n; ++ i ) {

			dest[ i ] = buffer[ offset ++ ];

		}

	}

	_setValue_array_setNeedsUpdate( buffer, offset ) {

		const dest = this.resolvedProperty;

		for ( let i = 0, n = dest.length; i !== n; ++ i ) {

			dest[ i ] = buffer[ offset ++ ];

		}

		this.targetObject.needsUpdate = true;

	}

	_setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {

		const dest = this.resolvedProperty;

		for ( let i = 0, n = dest.length; i !== n; ++ i ) {

			dest[ i ] = buffer[ offset ++ ];

		}

		this.targetObject.matrixWorldNeedsUpdate = true;

	}

	// ArrayElement

	_setValue_arrayElement( buffer, offset ) {

		this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];

	}

	_setValue_arrayElement_setNeedsUpdate( buffer, offset ) {

		this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
		this.targetObject.needsUpdate = true;

	}

	_setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {

		this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
		this.targetObject.matrixWorldNeedsUpdate = true;

	}

	// HasToFromArray

	_setValue_fromArray( buffer, offset ) {

		this.resolvedProperty.fromArray( buffer, offset );

	}

	_setValue_fromArray_setNeedsUpdate( buffer, offset ) {

		this.resolvedProperty.fromArray( buffer, offset );
		this.targetObject.needsUpdate = true;

	}

	_setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {

		this.resolvedProperty.fromArray( buffer, offset );
		this.targetObject.matrixWorldNeedsUpdate = true;

	}

	_getValue_unbound( targetArray, offset ) {

		this.bind();
		this.getValue( targetArray, offset );

	}

	_setValue_unbound( sourceArray, offset ) {

		this.bind();
		this.setValue( sourceArray, offset );

	}

	// create getter / setter pair for a property in the scene graph
	bind() {

		let targetObject = this.node;
		const parsedPath = this.parsedPath;

		const objectName = parsedPath.objectName;
		const propertyName = parsedPath.propertyName;
		let propertyIndex = parsedPath.propertyIndex;

		if ( ! targetObject ) {

			targetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode;

			this.node = targetObject;

		}

		// set fail state so we can just 'return' on error
		this.getValue = this._getValue_unavailable;
		this.setValue = this._setValue_unavailable;

		// ensure there is a value node
		if ( ! targetObject ) {

			console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' );
			return;

		}

		if ( objectName ) {

			let objectIndex = parsedPath.objectIndex;

			// special cases were we need to reach deeper into the hierarchy to get the face materials....
			switch ( objectName ) {

				case 'materials':

					if ( ! targetObject.material ) {

						console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );
						return;

					}

					if ( ! targetObject.material.materials ) {

						console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );
						return;

					}

					targetObject = targetObject.material.materials;

					break;

				case 'bones':

					if ( ! targetObject.skeleton ) {

						console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );
						return;

					}

					// potential future optimization: skip this if propertyIndex is already an integer
					// and convert the integer string to a true integer.

					targetObject = targetObject.skeleton.bones;

					// support resolving morphTarget names into indices.
					for ( let i = 0; i < targetObject.length; i ++ ) {

						if ( targetObject[ i ].name === objectIndex ) {

							objectIndex = i;
							break;

						}

					}

					break;

				default:

					if ( targetObject[ objectName ] === undefined ) {

						console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );
						return;

					}

					targetObject = targetObject[ objectName ];

			}


			if ( objectIndex !== undefined ) {

				if ( targetObject[ objectIndex ] === undefined ) {

					console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );
					return;

				}

				targetObject = targetObject[ objectIndex ];

			}

		}

		// resolve property
		const nodeProperty = targetObject[ propertyName ];

		if ( nodeProperty === undefined ) {

			const nodeName = parsedPath.nodeName;

			console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +
				'.' + propertyName + ' but it wasn\'t found.', targetObject );
			return;

		}

		// determine versioning scheme
		let versioning = this.Versioning.None;

		this.targetObject = targetObject;

		if ( targetObject.needsUpdate !== undefined ) { // material

			versioning = this.Versioning.NeedsUpdate;

		} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform

			versioning = this.Versioning.MatrixWorldNeedsUpdate;

		}

		// determine how the property gets bound
		let bindingType = this.BindingType.Direct;

		if ( propertyIndex !== undefined ) {

			// access a sub element of the property array (only primitives are supported right now)

			if ( propertyName === 'morphTargetInfluences' ) {

				// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.

				// support resolving morphTarget names into indices.
				if ( ! targetObject.geometry ) {

					console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );
					return;

				}

				if ( targetObject.geometry.isBufferGeometry ) {

					if ( ! targetObject.geometry.morphAttributes ) {

						console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );
						return;

					}

					if ( targetObject.morphTargetDictionary[ propertyIndex ] !== undefined ) {

						propertyIndex = targetObject.morphTargetDictionary[ propertyIndex ];

					}


				} else {

					console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.', this );
					return;

				}

			}

			bindingType = this.BindingType.ArrayElement;

			this.resolvedProperty = nodeProperty;
			this.propertyIndex = propertyIndex;

		} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {

			// must use copy for Object3D.Euler/Quaternion

			bindingType = this.BindingType.HasFromToArray;

			this.resolvedProperty = nodeProperty;

		} else if ( Array.isArray( nodeProperty ) ) {

			bindingType = this.BindingType.EntireArray;

			this.resolvedProperty = nodeProperty;

		} else {

			this.propertyName = propertyName;

		}

		// select getter / setter
		this.getValue = this.GetterByBindingType[ bindingType ];
		this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];

	}

	unbind() {

		this.node = null;

		// back to the prototype version of getValue / setValue
		// note: avoiding to mutate the shape of 'this' via 'delete'
		this.getValue = this._getValue_unbound;
		this.setValue = this._setValue_unbound;

	}

}

PropertyBinding.Composite = Composite;

PropertyBinding.prototype.BindingType = {
	Direct: 0,
	EntireArray: 1,
	ArrayElement: 2,
	HasFromToArray: 3
};

PropertyBinding.prototype.Versioning = {
	None: 0,
	NeedsUpdate: 1,
	MatrixWorldNeedsUpdate: 2
};

PropertyBinding.prototype.GetterByBindingType = [

	PropertyBinding.prototype._getValue_direct,
	PropertyBinding.prototype._getValue_array,
	PropertyBinding.prototype._getValue_arrayElement,
	PropertyBinding.prototype._getValue_toArray,

];

PropertyBinding.prototype.SetterByBindingTypeAndVersioning = [

	[
		// Direct
		PropertyBinding.prototype._setValue_direct,
		PropertyBinding.prototype._setValue_direct_setNeedsUpdate,
		PropertyBinding.prototype._setValue_direct_setMatrixWorldNeedsUpdate,

	], [

		// EntireArray

		PropertyBinding.prototype._setValue_array,
		PropertyBinding.prototype._setValue_array_setNeedsUpdate,
		PropertyBinding.prototype._setValue_array_setMatrixWorldNeedsUpdate,

	], [

		// ArrayElement
		PropertyBinding.prototype._setValue_arrayElement,
		PropertyBinding.prototype._setValue_arrayElement_setNeedsUpdate,
		PropertyBinding.prototype._setValue_arrayElement_setMatrixWorldNeedsUpdate,

	], [

		// HasToFromArray
		PropertyBinding.prototype._setValue_fromArray,
		PropertyBinding.prototype._setValue_fromArray_setNeedsUpdate,
		PropertyBinding.prototype._setValue_fromArray_setMatrixWorldNeedsUpdate,

	]

];

/**
 *
 * A group of objects that receives a shared animation state.
 *
 * Usage:
 *
 *  - Add objects you would otherwise pass as 'root' to the
 *    constructor or the .clipAction method of AnimationMixer.
 *
 *  - Instead pass this object as 'root'.
 *
 *  - You can also add and remove objects later when the mixer
 *    is running.
 *
 * Note:
 *
 *    Objects of this class appear as one object to the mixer,
 *    so cache control of the individual objects must be done
 *    on the group.
 *
 * Limitation:
 *
 *  - The animated properties must be compatible among the
 *    all objects in the group.
 *
 *  - A single property can either be controlled through a
 *    target group or directly, but not both.
 */

class AnimationObjectGroup {

	constructor() {

		this.uuid = generateUUID();

		// cached objects followed by the active ones
		this._objects = Array.prototype.slice.call( arguments );

		this.nCachedObjects_ = 0; // threshold
		// note: read by PropertyBinding.Composite

		const indices = {};
		this._indicesByUUID = indices; // for bookkeeping

		for ( let i = 0, n = arguments.length; i !== n; ++ i ) {

			indices[ arguments[ i ].uuid ] = i;

		}

		this._paths = []; // inside: string
		this._parsedPaths = []; // inside: { we don't care, here }
		this._bindings = []; // inside: Array< PropertyBinding >
		this._bindingsIndicesByPath = {}; // inside: indices in these arrays

		const scope = this;

		this.stats = {

			objects: {
				get total() {

					return scope._objects.length;

				},
				get inUse() {

					return this.total - scope.nCachedObjects_;

				}
			},
			get bindingsPerObject() {

				return scope._bindings.length;

			}

		};

	}

	add() {

		const objects = this._objects,
			indicesByUUID = this._indicesByUUID,
			paths = this._paths,
			parsedPaths = this._parsedPaths,
			bindings = this._bindings,
			nBindings = bindings.length;

		let knownObject = undefined,
			nObjects = objects.length,
			nCachedObjects = this.nCachedObjects_;

		for ( let i = 0, n = arguments.length; i !== n; ++ i ) {

			const object = arguments[ i ],
				uuid = object.uuid;
			let index = indicesByUUID[ uuid ];

			if ( index === undefined ) {

				// unknown object -> add it to the ACTIVE region

				index = nObjects ++;
				indicesByUUID[ uuid ] = index;
				objects.push( object );

				// accounting is done, now do the same for all bindings

				for ( let j = 0, m = nBindings; j !== m; ++ j ) {

					bindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) );

				}

			} else if ( index < nCachedObjects ) {

				knownObject = objects[ index ];

				// move existing object to the ACTIVE region

				const firstActiveIndex = -- nCachedObjects,
					lastCachedObject = objects[ firstActiveIndex ];

				indicesByUUID[ lastCachedObject.uuid ] = index;
				objects[ index ] = lastCachedObject;

				indicesByUUID[ uuid ] = firstActiveIndex;
				objects[ firstActiveIndex ] = object;

				// accounting is done, now do the same for all bindings

				for ( let j = 0, m = nBindings; j !== m; ++ j ) {

					const bindingsForPath = bindings[ j ],
						lastCached = bindingsForPath[ firstActiveIndex ];

					let binding = bindingsForPath[ index ];

					bindingsForPath[ index ] = lastCached;

					if ( binding === undefined ) {

						// since we do not bother to create new bindings
						// for objects that are cached, the binding may
						// or may not exist

						binding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] );

					}

					bindingsForPath[ firstActiveIndex ] = binding;

				}

			} else if ( objects[ index ] !== knownObject ) {

				console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +
					'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );

			} // else the object is already where we want it to be

		} // for arguments

		this.nCachedObjects_ = nCachedObjects;

	}

	remove() {

		const objects = this._objects,
			indicesByUUID = this._indicesByUUID,
			bindings = this._bindings,
			nBindings = bindings.length;

		let nCachedObjects = this.nCachedObjects_;

		for ( let i = 0, n = arguments.length; i !== n; ++ i ) {

			const object = arguments[ i ],
				uuid = object.uuid,
				index = indicesByUUID[ uuid ];

			if ( index !== undefined && index >= nCachedObjects ) {

				// move existing object into the CACHED region

				const lastCachedIndex = nCachedObjects ++,
					firstActiveObject = objects[ lastCachedIndex ];

				indicesByUUID[ firstActiveObject.uuid ] = index;
				objects[ index ] = firstActiveObject;

				indicesByUUID[ uuid ] = lastCachedIndex;
				objects[ lastCachedIndex ] = object;

				// accounting is done, now do the same for all bindings

				for ( let j = 0, m = nBindings; j !== m; ++ j ) {

					const bindingsForPath = bindings[ j ],
						firstActive = bindingsForPath[ lastCachedIndex ],
						binding = bindingsForPath[ index ];

					bindingsForPath[ index ] = firstActive;
					bindingsForPath[ lastCachedIndex ] = binding;

				}

			}

		} // for arguments

		this.nCachedObjects_ = nCachedObjects;

	}

	// remove & forget
	uncache() {

		const objects = this._objects,
			indicesByUUID = this._indicesByUUID,
			bindings = this._bindings,
			nBindings = bindings.length;

		let nCachedObjects = this.nCachedObjects_,
			nObjects = objects.length;

		for ( let i = 0, n = arguments.length; i !== n; ++ i ) {

			const object = arguments[ i ],
				uuid = object.uuid,
				index = indicesByUUID[ uuid ];

			if ( index !== undefined ) {

				delete indicesByUUID[ uuid ];

				if ( index < nCachedObjects ) {

					// object is cached, shrink the CACHED region

					const firstActiveIndex = -- nCachedObjects,
						lastCachedObject = objects[ firstActiveIndex ],
						lastIndex = -- nObjects,
						lastObject = objects[ lastIndex ];

					// last cached object takes this object's place
					indicesByUUID[ lastCachedObject.uuid ] = index;
					objects[ index ] = lastCachedObject;

					// last object goes to the activated slot and pop
					indicesByUUID[ lastObject.uuid ] = firstActiveIndex;
					objects[ firstActiveIndex ] = lastObject;
					objects.pop();

					// accounting is done, now do the same for all bindings

					for ( let j = 0, m = nBindings; j !== m; ++ j ) {

						const bindingsForPath = bindings[ j ],
							lastCached = bindingsForPath[ firstActiveIndex ],
							last = bindingsForPath[ lastIndex ];

						bindingsForPath[ index ] = lastCached;
						bindingsForPath[ firstActiveIndex ] = last;
						bindingsForPath.pop();

					}

				} else {

					// object is active, just swap with the last and pop

					const lastIndex = -- nObjects,
						lastObject = objects[ lastIndex ];

					if ( lastIndex > 0 ) {

						indicesByUUID[ lastObject.uuid ] = index;

					}

					objects[ index ] = lastObject;
					objects.pop();

					// accounting is done, now do the same for all bindings

					for ( let j = 0, m = nBindings; j !== m; ++ j ) {

						const bindingsForPath = bindings[ j ];

						bindingsForPath[ index ] = bindingsForPath[ lastIndex ];
						bindingsForPath.pop();

					}

				} // cached or active

			} // if object is known

		} // for arguments

		this.nCachedObjects_ = nCachedObjects;

	}

	// Internal interface used by befriended PropertyBinding.Composite:

	subscribe_( path, parsedPath ) {

		// returns an array of bindings for the given path that is changed
		// according to the contained objects in the group

		const indicesByPath = this._bindingsIndicesByPath;
		let index = indicesByPath[ path ];
		const bindings = this._bindings;

		if ( index !== undefined ) return bindings[ index ];

		const paths = this._paths,
			parsedPaths = this._parsedPaths,
			objects = this._objects,
			nObjects = objects.length,
			nCachedObjects = this.nCachedObjects_,
			bindingsForPath = new Array( nObjects );

		index = bindings.length;

		indicesByPath[ path ] = index;

		paths.push( path );
		parsedPaths.push( parsedPath );
		bindings.push( bindingsForPath );

		for ( let i = nCachedObjects, n = objects.length; i !== n; ++ i ) {

			const object = objects[ i ];
			bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );

		}

		return bindingsForPath;

	}

	unsubscribe_( path ) {

		// tells the group to forget about a property path and no longer
		// update the array previously obtained with 'subscribe_'

		const indicesByPath = this._bindingsIndicesByPath,
			index = indicesByPath[ path ];

		if ( index !== undefined ) {

			const paths = this._paths,
				parsedPaths = this._parsedPaths,
				bindings = this._bindings,
				lastBindingsIndex = bindings.length - 1,
				lastBindings = bindings[ lastBindingsIndex ],
				lastBindingsPath = path[ lastBindingsIndex ];

			indicesByPath[ lastBindingsPath ] = index;

			bindings[ index ] = lastBindings;
			bindings.pop();

			parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];
			parsedPaths.pop();

			paths[ index ] = paths[ lastBindingsIndex ];
			paths.pop();

		}

	}

}

AnimationObjectGroup.prototype.isAnimationObjectGroup = true;

class AnimationAction {

	constructor( mixer, clip, localRoot = null, blendMode = clip.blendMode ) {

		this._mixer = mixer;
		this._clip = clip;
		this._localRoot = localRoot;
		this.blendMode = blendMode;

		const tracks = clip.tracks,
			nTracks = tracks.length,
			interpolants = new Array( nTracks );

		const interpolantSettings = {
			endingStart: ZeroCurvatureEnding,
			endingEnd: ZeroCurvatureEnding
		};

		for ( let i = 0; i !== nTracks; ++ i ) {

			const interpolant = tracks[ i ].createInterpolant( null );
			interpolants[ i ] = interpolant;
			interpolant.settings = interpolantSettings;

		}

		this._interpolantSettings = interpolantSettings;

		this._interpolants = interpolants; // bound by the mixer

		// inside: PropertyMixer (managed by the mixer)
		this._propertyBindings = new Array( nTracks );

		this._cacheIndex = null; // for the memory manager
		this._byClipCacheIndex = null; // for the memory manager

		this._timeScaleInterpolant = null;
		this._weightInterpolant = null;

		this.loop = LoopRepeat;
		this._loopCount = - 1;

		// global mixer time when the action is to be started
		// it's set back to 'null' upon start of the action
		this._startTime = null;

		// scaled local time of the action
		// gets clamped or wrapped to 0..clip.duration according to loop
		this.time = 0;

		this.timeScale = 1;
		this._effectiveTimeScale = 1;

		this.weight = 1;
		this._effectiveWeight = 1;

		this.repetitions = Infinity; // no. of repetitions when looping

		this.paused = false; // true -> zero effective time scale
		this.enabled = true; // false -> zero effective weight

		this.clampWhenFinished = false;// keep feeding the last frame?

		this.zeroSlopeAtStart = true;// for smooth interpolation w/o separate
		this.zeroSlopeAtEnd = true;// clips for start, loop and end

	}

	// State & Scheduling

	play() {

		this._mixer._activateAction( this );

		return this;

	}

	stop() {

		this._mixer._deactivateAction( this );

		return this.reset();

	}

	reset() {

		this.paused = false;
		this.enabled = true;

		this.time = 0; // restart clip
		this._loopCount = - 1;// forget previous loops
		this._startTime = null;// forget scheduling

		return this.stopFading().stopWarping();

	}

	isRunning() {

		return this.enabled && ! this.paused && this.timeScale !== 0 &&
			this._startTime === null && this._mixer._isActiveAction( this );

	}

	// return true when play has been called
	isScheduled() {

		return this._mixer._isActiveAction( this );

	}

	startAt( time ) {

		this._startTime = time;

		return this;

	}

	setLoop( mode, repetitions ) {

		this.loop = mode;
		this.repetitions = repetitions;

		return this;

	}

	// Weight

	// set the weight stopping any scheduled fading
	// although .enabled = false yields an effective weight of zero, this
	// method does *not* change .enabled, because it would be confusing
	setEffectiveWeight( weight ) {

		this.weight = weight;

		// note: same logic as when updated at runtime
		this._effectiveWeight = this.enabled ? weight : 0;

		return this.stopFading();

	}

	// return the weight considering fading and .enabled
	getEffectiveWeight() {

		return this._effectiveWeight;

	}

	fadeIn( duration ) {

		return this._scheduleFading( duration, 0, 1 );

	}

	fadeOut( duration ) {

		return this._scheduleFading( duration, 1, 0 );

	}

	crossFadeFrom( fadeOutAction, duration, warp ) {

		fadeOutAction.fadeOut( duration );
		this.fadeIn( duration );

		if ( warp ) {

			const fadeInDuration = this._clip.duration,
				fadeOutDuration = fadeOutAction._clip.duration,

				startEndRatio = fadeOutDuration / fadeInDuration,
				endStartRatio = fadeInDuration / fadeOutDuration;

			fadeOutAction.warp( 1.0, startEndRatio, duration );
			this.warp( endStartRatio, 1.0, duration );

		}

		return this;

	}

	crossFadeTo( fadeInAction, duration, warp ) {

		return fadeInAction.crossFadeFrom( this, duration, warp );

	}

	stopFading() {

		const weightInterpolant = this._weightInterpolant;

		if ( weightInterpolant !== null ) {

			this._weightInterpolant = null;
			this._mixer._takeBackControlInterpolant( weightInterpolant );

		}

		return this;

	}

	// Time Scale Control

	// set the time scale stopping any scheduled warping
	// although .paused = true yields an effective time scale of zero, this
	// method does *not* change .paused, because it would be confusing
	setEffectiveTimeScale( timeScale ) {

		this.timeScale = timeScale;
		this._effectiveTimeScale = this.paused ? 0 : timeScale;

		return this.stopWarping();

	}

	// return the time scale considering warping and .paused
	getEffectiveTimeScale() {

		return this._effectiveTimeScale;

	}

	setDuration( duration ) {

		this.timeScale = this._clip.duration / duration;

		return this.stopWarping();

	}

	syncWith( action ) {

		this.time = action.time;
		this.timeScale = action.timeScale;

		return this.stopWarping();

	}

	halt( duration ) {

		return this.warp( this._effectiveTimeScale, 0, duration );

	}

	warp( startTimeScale, endTimeScale, duration ) {

		const mixer = this._mixer,
			now = mixer.time,
			timeScale = this.timeScale;

		let interpolant = this._timeScaleInterpolant;

		if ( interpolant === null ) {

			interpolant = mixer._lendControlInterpolant();
			this._timeScaleInterpolant = interpolant;

		}

		const times = interpolant.parameterPositions,
			values = interpolant.sampleValues;

		times[ 0 ] = now;
		times[ 1 ] = now + duration;

		values[ 0 ] = startTimeScale / timeScale;
		values[ 1 ] = endTimeScale / timeScale;

		return this;

	}

	stopWarping() {

		const timeScaleInterpolant = this._timeScaleInterpolant;

		if ( timeScaleInterpolant !== null ) {

			this._timeScaleInterpolant = null;
			this._mixer._takeBackControlInterpolant( timeScaleInterpolant );

		}

		return this;

	}

	// Object Accessors

	getMixer() {

		return this._mixer;

	}

	getClip() {

		return this._clip;

	}

	getRoot() {

		return this._localRoot || this._mixer._root;

	}

	// Interna

	_update( time, deltaTime, timeDirection, accuIndex ) {

		// called by the mixer

		if ( ! this.enabled ) {

			// call ._updateWeight() to update ._effectiveWeight

			this._updateWeight( time );
			return;

		}

		const startTime = this._startTime;

		if ( startTime !== null ) {

			// check for scheduled start of action

			const timeRunning = ( time - startTime ) * timeDirection;
			if ( timeRunning < 0 || timeDirection === 0 ) {

				return; // yet to come / don't decide when delta = 0

			}

			// start

			this._startTime = null; // unschedule
			deltaTime = timeDirection * timeRunning;

		}

		// apply time scale and advance time

		deltaTime *= this._updateTimeScale( time );
		const clipTime = this._updateTime( deltaTime );

		// note: _updateTime may disable the action resulting in
		// an effective weight of 0

		const weight = this._updateWeight( time );

		if ( weight > 0 ) {

			const interpolants = this._interpolants;
			const propertyMixers = this._propertyBindings;

			switch ( this.blendMode ) {

				case AdditiveAnimationBlendMode:

					for ( let j = 0, m = interpolants.length; j !== m; ++ j ) {

						interpolants[ j ].evaluate( clipTime );
						propertyMixers[ j ].accumulateAdditive( weight );

					}

					break;

				case NormalAnimationBlendMode:
				default:

					for ( let j = 0, m = interpolants.length; j !== m; ++ j ) {

						interpolants[ j ].evaluate( clipTime );
						propertyMixers[ j ].accumulate( accuIndex, weight );

					}

			}

		}

	}

	_updateWeight( time ) {

		let weight = 0;

		if ( this.enabled ) {

			weight = this.weight;
			const interpolant = this._weightInterpolant;

			if ( interpolant !== null ) {

				const interpolantValue = interpolant.evaluate( time )[ 0 ];

				weight *= interpolantValue;

				if ( time > interpolant.parameterPositions[ 1 ] ) {

					this.stopFading();

					if ( interpolantValue === 0 ) {

						// faded out, disable
						this.enabled = false;

					}

				}

			}

		}

		this._effectiveWeight = weight;
		return weight;

	}

	_updateTimeScale( time ) {

		let timeScale = 0;

		if ( ! this.paused ) {

			timeScale = this.timeScale;

			const interpolant = this._timeScaleInterpolant;

			if ( interpolant !== null ) {

				const interpolantValue = interpolant.evaluate( time )[ 0 ];

				timeScale *= interpolantValue;

				if ( time > interpolant.parameterPositions[ 1 ] ) {

					this.stopWarping();

					if ( timeScale === 0 ) {

						// motion has halted, pause
						this.paused = true;

					} else {

						// warp done - apply final time scale
						this.timeScale = timeScale;

					}

				}

			}

		}

		this._effectiveTimeScale = timeScale;
		return timeScale;

	}

	_updateTime( deltaTime ) {

		const duration = this._clip.duration;
		const loop = this.loop;

		let time = this.time + deltaTime;
		let loopCount = this._loopCount;

		const pingPong = ( loop === LoopPingPong );

		if ( deltaTime === 0 ) {

			if ( loopCount === - 1 ) return time;

			return ( pingPong && ( loopCount & 1 ) === 1 ) ? duration - time : time;

		}

		if ( loop === LoopOnce ) {

			if ( loopCount === - 1 ) {

				// just started

				this._loopCount = 0;
				this._setEndings( true, true, false );

			}

			handle_stop: {

				if ( time >= duration ) {

					time = duration;

				} else if ( time < 0 ) {

					time = 0;

				} else {

					this.time = time;

					break handle_stop;

				}

				if ( this.clampWhenFinished ) this.paused = true;
				else this.enabled = false;

				this.time = time;

				this._mixer.dispatchEvent( {
					type: 'finished', action: this,
					direction: deltaTime < 0 ? - 1 : 1
				} );

			}

		} else { // repetitive Repeat or PingPong

			if ( loopCount === - 1 ) {

				// just started

				if ( deltaTime >= 0 ) {

					loopCount = 0;

					this._setEndings( true, this.repetitions === 0, pingPong );

				} else {

					// when looping in reverse direction, the initial
					// transition through zero counts as a repetition,
					// so leave loopCount at -1

					this._setEndings( this.repetitions === 0, true, pingPong );

				}

			}

			if ( time >= duration || time < 0 ) {

				// wrap around

				const loopDelta = Math.floor( time / duration ); // signed
				time -= duration * loopDelta;

				loopCount += Math.abs( loopDelta );

				const pending = this.repetitions - loopCount;

				if ( pending <= 0 ) {

					// have to stop (switch state, clamp time, fire event)

					if ( this.clampWhenFinished ) this.paused = true;
					else this.enabled = false;

					time = deltaTime > 0 ? duration : 0;

					this.time = time;

					this._mixer.dispatchEvent( {
						type: 'finished', action: this,
						direction: deltaTime > 0 ? 1 : - 1
					} );

				} else {

					// keep running

					if ( pending === 1 ) {

						// entering the last round

						const atStart = deltaTime < 0;
						this._setEndings( atStart, ! atStart, pingPong );

					} else {

						this._setEndings( false, false, pingPong );

					}

					this._loopCount = loopCount;

					this.time = time;

					this._mixer.dispatchEvent( {
						type: 'loop', action: this, loopDelta: loopDelta
					} );

				}

			} else {

				this.time = time;

			}

			if ( pingPong && ( loopCount & 1 ) === 1 ) {

				// invert time for the "pong round"

				return duration - time;

			}

		}

		return time;

	}

	_setEndings( atStart, atEnd, pingPong ) {

		const settings = this._interpolantSettings;

		if ( pingPong ) {

			settings.endingStart = ZeroSlopeEnding;
			settings.endingEnd = ZeroSlopeEnding;

		} else {

			// assuming for LoopOnce atStart == atEnd == true

			if ( atStart ) {

				settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;

			} else {

				settings.endingStart = WrapAroundEnding;

			}

			if ( atEnd ) {

				settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;

			} else {

				settings.endingEnd 	 = WrapAroundEnding;

			}

		}

	}

	_scheduleFading( duration, weightNow, weightThen ) {

		const mixer = this._mixer, now = mixer.time;
		let interpolant = this._weightInterpolant;

		if ( interpolant === null ) {

			interpolant = mixer._lendControlInterpolant();
			this._weightInterpolant = interpolant;

		}

		const times = interpolant.parameterPositions,
			values = interpolant.sampleValues;

		times[ 0 ] = now;
		values[ 0 ] = weightNow;
		times[ 1 ] = now + duration;
		values[ 1 ] = weightThen;

		return this;

	}

}

class AnimationMixer extends EventDispatcher {

	constructor( root ) {

		super();

		this._root = root;
		this._initMemoryManager();
		this._accuIndex = 0;
		this.time = 0;
		this.timeScale = 1.0;

	}

	_bindAction( action, prototypeAction ) {

		const root = action._localRoot || this._root,
			tracks = action._clip.tracks,
			nTracks = tracks.length,
			bindings = action._propertyBindings,
			interpolants = action._interpolants,
			rootUuid = root.uuid,
			bindingsByRoot = this._bindingsByRootAndName;

		let bindingsByName = bindingsByRoot[ rootUuid ];

		if ( bindingsByName === undefined ) {

			bindingsByName = {};
			bindingsByRoot[ rootUuid ] = bindingsByName;

		}

		for ( let i = 0; i !== nTracks; ++ i ) {

			const track = tracks[ i ],
				trackName = track.name;

			let binding = bindingsByName[ trackName ];

			if ( binding !== undefined ) {

				++ binding.referenceCount;
				bindings[ i ] = binding;

			} else {

				binding = bindings[ i ];

				if ( binding !== undefined ) {

					// existing binding, make sure the cache knows

					if ( binding._cacheIndex === null ) {

						++ binding.referenceCount;
						this._addInactiveBinding( binding, rootUuid, trackName );

					}

					continue;

				}

				const path = prototypeAction && prototypeAction.
					_propertyBindings[ i ].binding.parsedPath;

				binding = new PropertyMixer(
					PropertyBinding.create( root, trackName, path ),
					track.ValueTypeName, track.getValueSize() );

				++ binding.referenceCount;
				this._addInactiveBinding( binding, rootUuid, trackName );

				bindings[ i ] = binding;

			}

			interpolants[ i ].resultBuffer = binding.buffer;

		}

	}

	_activateAction( action ) {

		if ( ! this._isActiveAction( action ) ) {

			if ( action._cacheIndex === null ) {

				// this action has been forgotten by the cache, but the user
				// appears to be still using it -> rebind

				const rootUuid = ( action._localRoot || this._root ).uuid,
					clipUuid = action._clip.uuid,
					actionsForClip = this._actionsByClip[ clipUuid ];

				this._bindAction( action,
					actionsForClip && actionsForClip.knownActions[ 0 ] );

				this._addInactiveAction( action, clipUuid, rootUuid );

			}

			const bindings = action._propertyBindings;

			// increment reference counts / sort out state
			for ( let i = 0, n = bindings.length; i !== n; ++ i ) {

				const binding = bindings[ i ];

				if ( binding.useCount ++ === 0 ) {

					this._lendBinding( binding );
					binding.saveOriginalState();

				}

			}

			this._lendAction( action );

		}

	}

	_deactivateAction( action ) {

		if ( this._isActiveAction( action ) ) {

			const bindings = action._propertyBindings;

			// decrement reference counts / sort out state
			for ( let i = 0, n = bindings.length; i !== n; ++ i ) {

				const binding = bindings[ i ];

				if ( -- binding.useCount === 0 ) {

					binding.restoreOriginalState();
					this._takeBackBinding( binding );

				}

			}

			this._takeBackAction( action );

		}

	}

	// Memory manager

	_initMemoryManager() {

		this._actions = []; // 'nActiveActions' followed by inactive ones
		this._nActiveActions = 0;

		this._actionsByClip = {};
		// inside:
		// {
		// 	knownActions: Array< AnimationAction > - used as prototypes
		// 	actionByRoot: AnimationAction - lookup
		// }


		this._bindings = []; // 'nActiveBindings' followed by inactive ones
		this._nActiveBindings = 0;

		this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >


		this._controlInterpolants = []; // same game as above
		this._nActiveControlInterpolants = 0;

		const scope = this;

		this.stats = {

			actions: {
				get total() {

					return scope._actions.length;

				},
				get inUse() {

					return scope._nActiveActions;

				}
			},
			bindings: {
				get total() {

					return scope._bindings.length;

				},
				get inUse() {

					return scope._nActiveBindings;

				}
			},
			controlInterpolants: {
				get total() {

					return scope._controlInterpolants.length;

				},
				get inUse() {

					return scope._nActiveControlInterpolants;

				}
			}

		};

	}

	// Memory management for AnimationAction objects

	_isActiveAction( action ) {

		const index = action._cacheIndex;
		return index !== null && index < this._nActiveActions;

	}

	_addInactiveAction( action, clipUuid, rootUuid ) {

		const actions = this._actions,
			actionsByClip = this._actionsByClip;

		let actionsForClip = actionsByClip[ clipUuid ];

		if ( actionsForClip === undefined ) {

			actionsForClip = {

				knownActions: [ action ],
				actionByRoot: {}

			};

			action._byClipCacheIndex = 0;

			actionsByClip[ clipUuid ] = actionsForClip;

		} else {

			const knownActions = actionsForClip.knownActions;

			action._byClipCacheIndex = knownActions.length;
			knownActions.push( action );

		}

		action._cacheIndex = actions.length;
		actions.push( action );

		actionsForClip.actionByRoot[ rootUuid ] = action;

	}

	_removeInactiveAction( action ) {

		const actions = this._actions,
			lastInactiveAction = actions[ actions.length - 1 ],
			cacheIndex = action._cacheIndex;

		lastInactiveAction._cacheIndex = cacheIndex;
		actions[ cacheIndex ] = lastInactiveAction;
		actions.pop();

		action._cacheIndex = null;


		const clipUuid = action._clip.uuid,
			actionsByClip = this._actionsByClip,
			actionsForClip = actionsByClip[ clipUuid ],
			knownActionsForClip = actionsForClip.knownActions,

			lastKnownAction =
				knownActionsForClip[ knownActionsForClip.length - 1 ],

			byClipCacheIndex = action._byClipCacheIndex;

		lastKnownAction._byClipCacheIndex = byClipCacheIndex;
		knownActionsForClip[ byClipCacheIndex ] = lastKnownAction;
		knownActionsForClip.pop();

		action._byClipCacheIndex = null;


		const actionByRoot = actionsForClip.actionByRoot,
			rootUuid = ( action._localRoot || this._root ).uuid;

		delete actionByRoot[ rootUuid ];

		if ( knownActionsForClip.length === 0 ) {

			delete actionsByClip[ clipUuid ];

		}

		this._removeInactiveBindingsForAction( action );

	}

	_removeInactiveBindingsForAction( action ) {

		const bindings = action._propertyBindings;

		for ( let i = 0, n = bindings.length; i !== n; ++ i ) {

			const binding = bindings[ i ];

			if ( -- binding.referenceCount === 0 ) {

				this._removeInactiveBinding( binding );

			}

		}

	}

	_lendAction( action ) {

		// [ active actions |  inactive actions  ]
		// [  active actions >| inactive actions ]
		//                 s        a
		//                  <-swap->
		//                 a        s

		const actions = this._actions,
			prevIndex = action._cacheIndex,

			lastActiveIndex = this._nActiveActions ++,

			firstInactiveAction = actions[ lastActiveIndex ];

		action._cacheIndex = lastActiveIndex;
		actions[ lastActiveIndex ] = action;

		firstInactiveAction._cacheIndex = prevIndex;
		actions[ prevIndex ] = firstInactiveAction;

	}

	_takeBackAction( action ) {

		// [  active actions  | inactive actions ]
		// [ active actions |< inactive actions  ]
		//        a        s
		//         <-swap->
		//        s        a

		const actions = this._actions,
			prevIndex = action._cacheIndex,

			firstInactiveIndex = -- this._nActiveActions,

			lastActiveAction = actions[ firstInactiveIndex ];

		action._cacheIndex = firstInactiveIndex;
		actions[ firstInactiveIndex ] = action;

		lastActiveAction._cacheIndex = prevIndex;
		actions[ prevIndex ] = lastActiveAction;

	}

	// Memory management for PropertyMixer objects

	_addInactiveBinding( binding, rootUuid, trackName ) {

		const bindingsByRoot = this._bindingsByRootAndName,
			bindings = this._bindings;

		let bindingByName = bindingsByRoot[ rootUuid ];

		if ( bindingByName === undefined ) {

			bindingByName = {};
			bindingsByRoot[ rootUuid ] = bindingByName;

		}

		bindingByName[ trackName ] = binding;

		binding._cacheIndex = bindings.length;
		bindings.push( binding );

	}

	_removeInactiveBinding( binding ) {

		const bindings = this._bindings,
			propBinding = binding.binding,
			rootUuid = propBinding.rootNode.uuid,
			trackName = propBinding.path,
			bindingsByRoot = this._bindingsByRootAndName,
			bindingByName = bindingsByRoot[ rootUuid ],

			lastInactiveBinding = bindings[ bindings.length - 1 ],
			cacheIndex = binding._cacheIndex;

		lastInactiveBinding._cacheIndex = cacheIndex;
		bindings[ cacheIndex ] = lastInactiveBinding;
		bindings.pop();

		delete bindingByName[ trackName ];

		if ( Object.keys( bindingByName ).length === 0 ) {

			delete bindingsByRoot[ rootUuid ];

		}

	}

	_lendBinding( binding ) {

		const bindings = this._bindings,
			prevIndex = binding._cacheIndex,

			lastActiveIndex = this._nActiveBindings ++,

			firstInactiveBinding = bindings[ lastActiveIndex ];

		binding._cacheIndex = lastActiveIndex;
		bindings[ lastActiveIndex ] = binding;

		firstInactiveBinding._cacheIndex = prevIndex;
		bindings[ prevIndex ] = firstInactiveBinding;

	}

	_takeBackBinding( binding ) {

		const bindings = this._bindings,
			prevIndex = binding._cacheIndex,

			firstInactiveIndex = -- this._nActiveBindings,

			lastActiveBinding = bindings[ firstInactiveIndex ];

		binding._cacheIndex = firstInactiveIndex;
		bindings[ firstInactiveIndex ] = binding;

		lastActiveBinding._cacheIndex = prevIndex;
		bindings[ prevIndex ] = lastActiveBinding;

	}


	// Memory management of Interpolants for weight and time scale

	_lendControlInterpolant() {

		const interpolants = this._controlInterpolants,
			lastActiveIndex = this._nActiveControlInterpolants ++;

		let interpolant = interpolants[ lastActiveIndex ];

		if ( interpolant === undefined ) {

			interpolant = new LinearInterpolant(
				new Float32Array( 2 ), new Float32Array( 2 ),
				1, this._controlInterpolantsResultBuffer );

			interpolant.__cacheIndex = lastActiveIndex;
			interpolants[ lastActiveIndex ] = interpolant;

		}

		return interpolant;

	}

	_takeBackControlInterpolant( interpolant ) {

		const interpolants = this._controlInterpolants,
			prevIndex = interpolant.__cacheIndex,

			firstInactiveIndex = -- this._nActiveControlInterpolants,

			lastActiveInterpolant = interpolants[ firstInactiveIndex ];

		interpolant.__cacheIndex = firstInactiveIndex;
		interpolants[ firstInactiveIndex ] = interpolant;

		lastActiveInterpolant.__cacheIndex = prevIndex;
		interpolants[ prevIndex ] = lastActiveInterpolant;

	}

	// return an action for a clip optionally using a custom root target
	// object (this method allocates a lot of dynamic memory in case a
	// previously unknown clip/root combination is specified)
	clipAction( clip, optionalRoot, blendMode ) {

		const root = optionalRoot || this._root,
			rootUuid = root.uuid;

		let clipObject = typeof clip === 'string' ? AnimationClip.findByName( root, clip ) : clip;

		const clipUuid = clipObject !== null ? clipObject.uuid : clip;

		const actionsForClip = this._actionsByClip[ clipUuid ];
		let prototypeAction = null;

		if ( blendMode === undefined ) {

			if ( clipObject !== null ) {

				blendMode = clipObject.blendMode;

			} else {

				blendMode = NormalAnimationBlendMode;

			}

		}

		if ( actionsForClip !== undefined ) {

			const existingAction = actionsForClip.actionByRoot[ rootUuid ];

			if ( existingAction !== undefined && existingAction.blendMode === blendMode ) {

				return existingAction;

			}

			// we know the clip, so we don't have to parse all
			// the bindings again but can just copy
			prototypeAction = actionsForClip.knownActions[ 0 ];

			// also, take the clip from the prototype action
			if ( clipObject === null )
				clipObject = prototypeAction._clip;

		}

		// clip must be known when specified via string
		if ( clipObject === null ) return null;

		// allocate all resources required to run it
		const newAction = new AnimationAction( this, clipObject, optionalRoot, blendMode );

		this._bindAction( newAction, prototypeAction );

		// and make the action known to the memory manager
		this._addInactiveAction( newAction, clipUuid, rootUuid );

		return newAction;

	}

	// get an existing action
	existingAction( clip, optionalRoot ) {

		const root = optionalRoot || this._root,
			rootUuid = root.uuid,

			clipObject = typeof clip === 'string' ?
				AnimationClip.findByName( root, clip ) : clip,

			clipUuid = clipObject ? clipObject.uuid : clip,

			actionsForClip = this._actionsByClip[ clipUuid ];

		if ( actionsForClip !== undefined ) {

			return actionsForClip.actionByRoot[ rootUuid ] || null;

		}

		return null;

	}

	// deactivates all previously scheduled actions
	stopAllAction() {

		const actions = this._actions,
			nActions = this._nActiveActions;

		for ( let i = nActions - 1; i >= 0; -- i ) {

			actions[ i ].stop();

		}

		return this;

	}

	// advance the time and update apply the animation
	update( deltaTime ) {

		deltaTime *= this.timeScale;

		const actions = this._actions,
			nActions = this._nActiveActions,

			time = this.time += deltaTime,
			timeDirection = Math.sign( deltaTime ),

			accuIndex = this._accuIndex ^= 1;

		// run active actions

		for ( let i = 0; i !== nActions; ++ i ) {

			const action = actions[ i ];

			action._update( time, deltaTime, timeDirection, accuIndex );

		}

		// update scene graph

		const bindings = this._bindings,
			nBindings = this._nActiveBindings;

		for ( let i = 0; i !== nBindings; ++ i ) {

			bindings[ i ].apply( accuIndex );

		}

		return this;

	}

	// Allows you to seek to a specific time in an animation.
	setTime( timeInSeconds ) {

		this.time = 0; // Zero out time attribute for AnimationMixer object;
		for ( let i = 0; i < this._actions.length; i ++ ) {

			this._actions[ i ].time = 0; // Zero out time attribute for all associated AnimationAction objects.

		}

		return this.update( timeInSeconds ); // Update used to set exact time. Returns "this" AnimationMixer object.

	}

	// return this mixer's root target object
	getRoot() {

		return this._root;

	}

	// free all resources specific to a particular clip
	uncacheClip( clip ) {

		const actions = this._actions,
			clipUuid = clip.uuid,
			actionsByClip = this._actionsByClip,
			actionsForClip = actionsByClip[ clipUuid ];

		if ( actionsForClip !== undefined ) {

			// note: just calling _removeInactiveAction would mess up the
			// iteration state and also require updating the state we can
			// just throw away

			const actionsToRemove = actionsForClip.knownActions;

			for ( let i = 0, n = actionsToRemove.length; i !== n; ++ i ) {

				const action = actionsToRemove[ i ];

				this._deactivateAction( action );

				const cacheIndex = action._cacheIndex,
					lastInactiveAction = actions[ actions.length - 1 ];

				action._cacheIndex = null;
				action._byClipCacheIndex = null;

				lastInactiveAction._cacheIndex = cacheIndex;
				actions[ cacheIndex ] = lastInactiveAction;
				actions.pop();

				this._removeInactiveBindingsForAction( action );

			}

			delete actionsByClip[ clipUuid ];

		}

	}

	// free all resources specific to a particular root target object
	uncacheRoot( root ) {

		const rootUuid = root.uuid,
			actionsByClip = this._actionsByClip;

		for ( const clipUuid in actionsByClip ) {

			const actionByRoot = actionsByClip[ clipUuid ].actionByRoot,
				action = actionByRoot[ rootUuid ];

			if ( action !== undefined ) {

				this._deactivateAction( action );
				this._removeInactiveAction( action );

			}

		}

		const bindingsByRoot = this._bindingsByRootAndName,
			bindingByName = bindingsByRoot[ rootUuid ];

		if ( bindingByName !== undefined ) {

			for ( const trackName in bindingByName ) {

				const binding = bindingByName[ trackName ];
				binding.restoreOriginalState();
				this._removeInactiveBinding( binding );

			}

		}

	}

	// remove a targeted clip from the cache
	uncacheAction( clip, optionalRoot ) {

		const action = this.existingAction( clip, optionalRoot );

		if ( action !== null ) {

			this._deactivateAction( action );
			this._removeInactiveAction( action );

		}

	}

}

AnimationMixer.prototype._controlInterpolantsResultBuffer = new Float32Array( 1 );

class Uniform {

	constructor( value ) {

		if ( typeof value === 'string' ) {

			console.warn( 'THREE.Uniform: Type parameter is no longer needed.' );
			value = arguments[ 1 ];

		}

		this.value = value;

	}

	clone() {

		return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );

	}

}

class InstancedInterleavedBuffer extends InterleavedBuffer {

	constructor( array, stride, meshPerAttribute = 1 ) {

		super( array, stride );

		this.meshPerAttribute = meshPerAttribute;

	}

	copy( source ) {

		super.copy( source );

		this.meshPerAttribute = source.meshPerAttribute;

		return this;

	}

	clone( data ) {

		const ib = super.clone( data );

		ib.meshPerAttribute = this.meshPerAttribute;

		return ib;

	}

	toJSON( data ) {

		const json = super.toJSON( data );

		json.isInstancedInterleavedBuffer = true;
		json.meshPerAttribute = this.meshPerAttribute;

		return json;

	}

}

InstancedInterleavedBuffer.prototype.isInstancedInterleavedBuffer = true;

class GLBufferAttribute {

	constructor( buffer, type, itemSize, elementSize, count ) {

		this.buffer = buffer;
		this.type = type;
		this.itemSize = itemSize;
		this.elementSize = elementSize;
		this.count = count;

		this.version = 0;

	}

	set needsUpdate( value ) {

		if ( value === true ) this.version ++;

	}

	setBuffer( buffer ) {

		this.buffer = buffer;

		return this;

	}

	setType( type, elementSize ) {

		this.type = type;
		this.elementSize = elementSize;

		return this;

	}

	setItemSize( itemSize ) {

		this.itemSize = itemSize;

		return this;

	}

	setCount( count ) {

		this.count = count;

		return this;

	}

}

GLBufferAttribute.prototype.isGLBufferAttribute = true;

class Raycaster {

	constructor( origin, direction, near = 0, far = Infinity ) {

		this.ray = new Ray( origin, direction );
		// direction is assumed to be normalized (for accurate distance calculations)

		this.near = near;
		this.far = far;
		this.camera = null;
		this.layers = new Layers();

		this.params = {
			Mesh: {},
			Line: { threshold: 1 },
			LOD: {},
			Points: { threshold: 1 },
			Sprite: {}
		};

	}

	set( origin, direction ) {

		// direction is assumed to be normalized (for accurate distance calculations)

		this.ray.set( origin, direction );

	}

	setFromCamera( coords, camera ) {

		if ( camera && camera.isPerspectiveCamera ) {

			this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
			this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();
			this.camera = camera;

		} else if ( camera && camera.isOrthographicCamera ) {

			this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera
			this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );
			this.camera = camera;

		} else {

			console.error( 'THREE.Raycaster: Unsupported camera type: ' + camera.type );

		}

	}

	intersectObject( object, recursive = true, intersects = [] ) {

		intersectObject( object, this, intersects, recursive );

		intersects.sort( ascSort );

		return intersects;

	}

	intersectObjects( objects, recursive = true, intersects = [] ) {

		for ( let i = 0, l = objects.length; i < l; i ++ ) {

			intersectObject( objects[ i ], this, intersects, recursive );

		}

		intersects.sort( ascSort );

		return intersects;

	}

}

function ascSort( a, b ) {

	return a.distance - b.distance;

}

function intersectObject( object, raycaster, intersects, recursive ) {

	if ( object.layers.test( raycaster.layers ) ) {

		object.raycast( raycaster, intersects );

	}

	if ( recursive === true ) {

		const children = object.children;

		for ( let i = 0, l = children.length; i < l; i ++ ) {

			intersectObject( children[ i ], raycaster, intersects, true );

		}

	}

}

/**
 * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
 *
 * The polar angle (phi) is measured from the positive y-axis. The positive y-axis is up.
 * The azimuthal angle (theta) is measured from the positive z-axis.
 */

class Spherical {

	constructor( radius = 1, phi = 0, theta = 0 ) {

		this.radius = radius;
		this.phi = phi; // polar angle
		this.theta = theta; // azimuthal angle

		return this;

	}

	set( radius, phi, theta ) {

		this.radius = radius;
		this.phi = phi;
		this.theta = theta;

		return this;

	}

	copy( other ) {

		this.radius = other.radius;
		this.phi = other.phi;
		this.theta = other.theta;

		return this;

	}

	// restrict phi to be betwee EPS and PI-EPS
	makeSafe() {

		const EPS = 0.000001;
		this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );

		return this;

	}

	setFromVector3( v ) {

		return this.setFromCartesianCoords( v.x, v.y, v.z );

	}

	setFromCartesianCoords( x, y, z ) {

		this.radius = Math.sqrt( x * x + y * y + z * z );

		if ( this.radius === 0 ) {

			this.theta = 0;
			this.phi = 0;

		} else {

			this.theta = Math.atan2( x, z );
			this.phi = Math.acos( clamp( y / this.radius, - 1, 1 ) );

		}

		return this;

	}

	clone() {

		return new this.constructor().copy( this );

	}

}

/**
 * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
 */

class Cylindrical {

	constructor( radius = 1, theta = 0, y = 0 ) {

		this.radius = radius; // distance from the origin to a point in the x-z plane
		this.theta = theta; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
		this.y = y; // height above the x-z plane

		return this;

	}

	set( radius, theta, y ) {

		this.radius = radius;
		this.theta = theta;
		this.y = y;

		return this;

	}

	copy( other ) {

		this.radius = other.radius;
		this.theta = other.theta;
		this.y = other.y;

		return this;

	}

	setFromVector3( v ) {

		return this.setFromCartesianCoords( v.x, v.y, v.z );

	}

	setFromCartesianCoords( x, y, z ) {

		this.radius = Math.sqrt( x * x + z * z );
		this.theta = Math.atan2( x, z );
		this.y = y;

		return this;

	}

	clone() {

		return new this.constructor().copy( this );

	}

}

const _vector$4 = /*@__PURE__*/ new Vector2();

class Box2 {

	constructor( min = new Vector2( + Infinity, + Infinity ), max = new Vector2( - Infinity, - Infinity ) ) {

		this.min = min;
		this.max = max;

	}

	set( min, max ) {

		this.min.copy( min );
		this.max.copy( max );

		return this;

	}

	setFromPoints( points ) {

		this.makeEmpty();

		for ( let i = 0, il = points.length; i < il; i ++ ) {

			this.expandByPoint( points[ i ] );

		}

		return this;

	}

	setFromCenterAndSize( center, size ) {

		const halfSize = _vector$4.copy( size ).multiplyScalar( 0.5 );
		this.min.copy( center ).sub( halfSize );
		this.max.copy( center ).add( halfSize );

		return this;

	}

	clone() {

		return new this.constructor().copy( this );

	}

	copy( box ) {

		this.min.copy( box.min );
		this.max.copy( box.max );

		return this;

	}

	makeEmpty() {

		this.min.x = this.min.y = + Infinity;
		this.max.x = this.max.y = - Infinity;

		return this;

	}

	isEmpty() {

		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

		return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );

	}

	getCenter( target ) {

		return this.isEmpty() ? target.set( 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

	}

	getSize( target ) {

		return this.isEmpty() ? target.set( 0, 0 ) : target.subVectors( this.max, this.min );

	}

	expandByPoint( point ) {

		this.min.min( point );
		this.max.max( point );

		return this;

	}

	expandByVector( vector ) {

		this.min.sub( vector );
		this.max.add( vector );

		return this;

	}

	expandByScalar( scalar ) {

		this.min.addScalar( - scalar );
		this.max.addScalar( scalar );

		return this;

	}

	containsPoint( point ) {

		return point.x < this.min.x || point.x > this.max.x ||
			point.y < this.min.y || point.y > this.max.y ? false : true;

	}

	containsBox( box ) {

		return this.min.x <= box.min.x && box.max.x <= this.max.x &&
			this.min.y <= box.min.y && box.max.y <= this.max.y;

	}

	getParameter( point, target ) {

		// This can potentially have a divide by zero if the box
		// has a size dimension of 0.

		return target.set(
			( point.x - this.min.x ) / ( this.max.x - this.min.x ),
			( point.y - this.min.y ) / ( this.max.y - this.min.y )
		);

	}

	intersectsBox( box ) {

		// using 4 splitting planes to rule out intersections

		return box.max.x < this.min.x || box.min.x > this.max.x ||
			box.max.y < this.min.y || box.min.y > this.max.y ? false : true;

	}

	clampPoint( point, target ) {

		return target.copy( point ).clamp( this.min, this.max );

	}

	distanceToPoint( point ) {

		const clampedPoint = _vector$4.copy( point ).clamp( this.min, this.max );
		return clampedPoint.sub( point ).length();

	}

	intersect( box ) {

		this.min.max( box.min );
		this.max.min( box.max );

		return this;

	}

	union( box ) {

		this.min.min( box.min );
		this.max.max( box.max );

		return this;

	}

	translate( offset ) {

		this.min.add( offset );
		this.max.add( offset );

		return this;

	}

	equals( box ) {

		return box.min.equals( this.min ) && box.max.equals( this.max );

	}

}

Box2.prototype.isBox2 = true;

const _startP = /*@__PURE__*/ new Vector3();
const _startEnd = /*@__PURE__*/ new Vector3();

class Line3 {

	constructor( start = new Vector3(), end = new Vector3() ) {

		this.start = start;
		this.end = end;

	}

	set( start, end ) {

		this.start.copy( start );
		this.end.copy( end );

		return this;

	}

	copy( line ) {

		this.start.copy( line.start );
		this.end.copy( line.end );

		return this;

	}

	getCenter( target ) {

		return target.addVectors( this.start, this.end ).multiplyScalar( 0.5 );

	}

	delta( target ) {

		return target.subVectors( this.end, this.start );

	}

	distanceSq() {

		return this.start.distanceToSquared( this.end );

	}

	distance() {

		return this.start.distanceTo( this.end );

	}

	at( t, target ) {

		return this.delta( target ).multiplyScalar( t ).add( this.start );

	}

	closestPointToPointParameter( point, clampToLine ) {

		_startP.subVectors( point, this.start );
		_startEnd.subVectors( this.end, this.start );

		const startEnd2 = _startEnd.dot( _startEnd );
		const startEnd_startP = _startEnd.dot( _startP );

		let t = startEnd_startP / startEnd2;

		if ( clampToLine ) {

			t = clamp( t, 0, 1 );

		}

		return t;

	}

	closestPointToPoint( point, clampToLine, target ) {

		const t = this.closestPointToPointParameter( point, clampToLine );

		return this.delta( target ).multiplyScalar( t ).add( this.start );

	}

	applyMatrix4( matrix ) {

		this.start.applyMatrix4( matrix );
		this.end.applyMatrix4( matrix );

		return this;

	}

	equals( line ) {

		return line.start.equals( this.start ) && line.end.equals( this.end );

	}

	clone() {

		return new this.constructor().copy( this );

	}

}

const _vector$3 = /*@__PURE__*/ new Vector3();

class SpotLightHelper extends Object3D {

	constructor( light, color ) {

		super();
		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.color = color;

		const geometry = new BufferGeometry();

		const positions = [
			0, 0, 0, 	0, 0, 1,
			0, 0, 0, 	1, 0, 1,
			0, 0, 0,	- 1, 0, 1,
			0, 0, 0, 	0, 1, 1,
			0, 0, 0, 	0, - 1, 1
		];

		for ( let i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {

			const p1 = ( i / l ) * Math.PI * 2;
			const p2 = ( j / l ) * Math.PI * 2;

			positions.push(
				Math.cos( p1 ), Math.sin( p1 ), 1,
				Math.cos( p2 ), Math.sin( p2 ), 1
			);

		}

		geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );

		const material = new LineBasicMaterial( { fog: false, toneMapped: false } );

		this.cone = new LineSegments( geometry, material );
		this.add( this.cone );

		this.update();

	}

	dispose() {

		this.cone.geometry.dispose();
		this.cone.material.dispose();

	}

	update() {

		this.light.updateMatrixWorld();

		const coneLength = this.light.distance ? this.light.distance : 1000;
		const coneWidth = coneLength * Math.tan( this.light.angle );

		this.cone.scale.set( coneWidth, coneWidth, coneLength );

		_vector$3.setFromMatrixPosition( this.light.target.matrixWorld );

		this.cone.lookAt( _vector$3 );

		if ( this.color !== undefined ) {

			this.cone.material.color.set( this.color );

		} else {

			this.cone.material.color.copy( this.light.color );

		}

	}

}

const _vector$2 = /*@__PURE__*/ new Vector3();
const _boneMatrix = /*@__PURE__*/ new Matrix4();
const _matrixWorldInv = /*@__PURE__*/ new Matrix4();


class SkeletonHelper extends LineSegments {

	constructor( object ) {

		const bones = getBoneList( object );

		const geometry = new BufferGeometry();

		const vertices = [];
		const colors = [];

		const color1 = new Color( 0, 0, 1 );
		const color2 = new Color( 0, 1, 0 );

		for ( let i = 0; i < bones.length; i ++ ) {

			const bone = bones[ i ];

			if ( bone.parent && bone.parent.isBone ) {

				vertices.push( 0, 0, 0 );
				vertices.push( 0, 0, 0 );
				colors.push( color1.r, color1.g, color1.b );
				colors.push( color2.r, color2.g, color2.b );

			}

		}

		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		const material = new LineBasicMaterial( { vertexColors: true, depthTest: false, depthWrite: false, toneMapped: false, transparent: true } );

		super( geometry, material );

		this.type = 'SkeletonHelper';
		this.isSkeletonHelper = true;

		this.root = object;
		this.bones = bones;

		this.matrix = object.matrixWorld;
		this.matrixAutoUpdate = false;

	}

	updateMatrixWorld( force ) {

		const bones = this.bones;

		const geometry = this.geometry;
		const position = geometry.getAttribute( 'position' );

		_matrixWorldInv.copy( this.root.matrixWorld ).invert();

		for ( let i = 0, j = 0; i < bones.length; i ++ ) {

			const bone = bones[ i ];

			if ( bone.parent && bone.parent.isBone ) {

				_boneMatrix.multiplyMatrices( _matrixWorldInv, bone.matrixWorld );
				_vector$2.setFromMatrixPosition( _boneMatrix );
				position.setXYZ( j, _vector$2.x, _vector$2.y, _vector$2.z );

				_boneMatrix.multiplyMatrices( _matrixWorldInv, bone.parent.matrixWorld );
				_vector$2.setFromMatrixPosition( _boneMatrix );
				position.setXYZ( j + 1, _vector$2.x, _vector$2.y, _vector$2.z );

				j += 2;

			}

		}

		geometry.getAttribute( 'position' ).needsUpdate = true;

		super.updateMatrixWorld( force );

	}

}


function getBoneList( object ) {

	const boneList = [];

	if ( object && object.isBone ) {

		boneList.push( object );

	}

	for ( let i = 0; i < object.children.length; i ++ ) {

		boneList.push.apply( boneList, getBoneList( object.children[ i ] ) );

	}

	return boneList;

}

class PointLightHelper extends Mesh {

	constructor( light, sphereSize, color ) {

		const geometry = new SphereGeometry( sphereSize, 4, 2 );
		const material = new MeshBasicMaterial( { wireframe: true, fog: false, toneMapped: false } );

		super( geometry, material );

		this.light = light;
		this.light.updateMatrixWorld();

		this.color = color;

		this.type = 'PointLightHelper';

		this.matrix = this.light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.update();


		/*
	// TODO: delete this comment?
	const distanceGeometry = new THREE.IcosahedronBufferGeometry( 1, 2 );
	const distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );

	this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
	this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );

	const d = light.distance;

	if ( d === 0.0 ) {

		this.lightDistance.visible = false;

	} else {

		this.lightDistance.scale.set( d, d, d );

	}

	this.add( this.lightDistance );
	*/

	}

	dispose() {

		this.geometry.dispose();
		this.material.dispose();

	}

	update() {

		if ( this.color !== undefined ) {

			this.material.color.set( this.color );

		} else {

			this.material.color.copy( this.light.color );

		}

		/*
		const d = this.light.distance;

		if ( d === 0.0 ) {

			this.lightDistance.visible = false;

		} else {

			this.lightDistance.visible = true;
			this.lightDistance.scale.set( d, d, d );

		}
		*/

	}

}

const _vector$1 = /*@__PURE__*/ new Vector3();
const _color1 = /*@__PURE__*/ new Color();
const _color2 = /*@__PURE__*/ new Color();

class HemisphereLightHelper extends Object3D {

	constructor( light, size, color ) {

		super();
		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.color = color;

		const geometry = new OctahedronGeometry( size );
		geometry.rotateY( Math.PI * 0.5 );

		this.material = new MeshBasicMaterial( { wireframe: true, fog: false, toneMapped: false } );
		if ( this.color === undefined ) this.material.vertexColors = true;

		const position = geometry.getAttribute( 'position' );
		const colors = new Float32Array( position.count * 3 );

		geometry.setAttribute( 'color', new BufferAttribute( colors, 3 ) );

		this.add( new Mesh( geometry, this.material ) );

		this.update();

	}

	dispose() {

		this.children[ 0 ].geometry.dispose();
		this.children[ 0 ].material.dispose();

	}

	update() {

		const mesh = this.children[ 0 ];

		if ( this.color !== undefined ) {

			this.material.color.set( this.color );

		} else {

			const colors = mesh.geometry.getAttribute( 'color' );

			_color1.copy( this.light.color );
			_color2.copy( this.light.groundColor );

			for ( let i = 0, l = colors.count; i < l; i ++ ) {

				const color = ( i < ( l / 2 ) ) ? _color1 : _color2;

				colors.setXYZ( i, color.r, color.g, color.b );

			}

			colors.needsUpdate = true;

		}

		mesh.lookAt( _vector$1.setFromMatrixPosition( this.light.matrixWorld ).negate() );

	}

}

class GridHelper extends LineSegments {

	constructor( size = 10, divisions = 10, color1 = 0x444444, color2 = 0x888888 ) {

		color1 = new Color( color1 );
		color2 = new Color( color2 );

		const center = divisions / 2;
		const step = size / divisions;
		const halfSize = size / 2;

		const vertices = [], colors = [];

		for ( let i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {

			vertices.push( - halfSize, 0, k, halfSize, 0, k );
			vertices.push( k, 0, - halfSize, k, 0, halfSize );

			const color = i === center ? color1 : color2;

			color.toArray( colors, j ); j += 3;
			color.toArray( colors, j ); j += 3;
			color.toArray( colors, j ); j += 3;
			color.toArray( colors, j ); j += 3;

		}

		const geometry = new BufferGeometry();
		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } );

		super( geometry, material );

		this.type = 'GridHelper';

	}

}

class PolarGridHelper extends LineSegments {

	constructor( radius = 10, radials = 16, circles = 8, divisions = 64, color1 = 0x444444, color2 = 0x888888 ) {

		color1 = new Color( color1 );
		color2 = new Color( color2 );

		const vertices = [];
		const colors = [];

		// create the radials

		for ( let i = 0; i <= radials; i ++ ) {

			const v = ( i / radials ) * ( Math.PI * 2 );

			const x = Math.sin( v ) * radius;
			const z = Math.cos( v ) * radius;

			vertices.push( 0, 0, 0 );
			vertices.push( x, 0, z );

			const color = ( i & 1 ) ? color1 : color2;

			colors.push( color.r, color.g, color.b );
			colors.push( color.r, color.g, color.b );

		}

		// create the circles

		for ( let i = 0; i <= circles; i ++ ) {

			const color = ( i & 1 ) ? color1 : color2;

			const r = radius - ( radius / circles * i );

			for ( let j = 0; j < divisions; j ++ ) {

				// first vertex

				let v = ( j / divisions ) * ( Math.PI * 2 );

				let x = Math.sin( v ) * r;
				let z = Math.cos( v ) * r;

				vertices.push( x, 0, z );
				colors.push( color.r, color.g, color.b );

				// second vertex

				v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );

				x = Math.sin( v ) * r;
				z = Math.cos( v ) * r;

				vertices.push( x, 0, z );
				colors.push( color.r, color.g, color.b );

			}

		}

		const geometry = new BufferGeometry();
		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } );

		super( geometry, material );

		this.type = 'PolarGridHelper';

	}

}

const _v1 = /*@__PURE__*/ new Vector3();
const _v2 = /*@__PURE__*/ new Vector3();
const _v3 = /*@__PURE__*/ new Vector3();

class DirectionalLightHelper extends Object3D {

	constructor( light, size, color ) {

		super();
		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		this.color = color;

		if ( size === undefined ) size = 1;

		let geometry = new BufferGeometry();
		geometry.setAttribute( 'position', new Float32BufferAttribute( [
			- size, size, 0,
			size, size, 0,
			size, - size, 0,
			- size, - size, 0,
			- size, size, 0
		], 3 ) );

		const material = new LineBasicMaterial( { fog: false, toneMapped: false } );

		this.lightPlane = new Line( geometry, material );
		this.add( this.lightPlane );

		geometry = new BufferGeometry();
		geometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );

		this.targetLine = new Line( geometry, material );
		this.add( this.targetLine );

		this.update();

	}

	dispose() {

		this.lightPlane.geometry.dispose();
		this.lightPlane.material.dispose();
		this.targetLine.geometry.dispose();
		this.targetLine.material.dispose();

	}

	update() {

		_v1.setFromMatrixPosition( this.light.matrixWorld );
		_v2.setFromMatrixPosition( this.light.target.matrixWorld );
		_v3.subVectors( _v2, _v1 );

		this.lightPlane.lookAt( _v2 );

		if ( this.color !== undefined ) {

			this.lightPlane.material.color.set( this.color );
			this.targetLine.material.color.set( this.color );

		} else {

			this.lightPlane.material.color.copy( this.light.color );
			this.targetLine.material.color.copy( this.light.color );

		}

		this.targetLine.lookAt( _v2 );
		this.targetLine.scale.z = _v3.length();

	}

}

const _vector = /*@__PURE__*/ new Vector3();
const _camera = /*@__PURE__*/ new Camera();

/**
 *	- shows frustum, line of sight and up of the camera
 *	- suitable for fast updates
 * 	- based on frustum visualization in lightgl.js shadowmap example
 *		https://github.com/evanw/lightgl.js/blob/master/tests/shadowmap.html
 */

class CameraHelper extends LineSegments {

	constructor( camera ) {

		const geometry = new BufferGeometry();
		const material = new LineBasicMaterial( { color: 0xffffff, vertexColors: true, toneMapped: false } );

		const vertices = [];
		const colors = [];

		const pointMap = {};

		// colors

		const colorFrustum = new Color( 0xffaa00 );
		const colorCone = new Color( 0xff0000 );
		const colorUp = new Color( 0x00aaff );
		const colorTarget = new Color( 0xffffff );
		const colorCross = new Color( 0x333333 );

		// near

		addLine( 'n1', 'n2', colorFrustum );
		addLine( 'n2', 'n4', colorFrustum );
		addLine( 'n4', 'n3', colorFrustum );
		addLine( 'n3', 'n1', colorFrustum );

		// far

		addLine( 'f1', 'f2', colorFrustum );
		addLine( 'f2', 'f4', colorFrustum );
		addLine( 'f4', 'f3', colorFrustum );
		addLine( 'f3', 'f1', colorFrustum );

		// sides

		addLine( 'n1', 'f1', colorFrustum );
		addLine( 'n2', 'f2', colorFrustum );
		addLine( 'n3', 'f3', colorFrustum );
		addLine( 'n4', 'f4', colorFrustum );

		// cone

		addLine( 'p', 'n1', colorCone );
		addLine( 'p', 'n2', colorCone );
		addLine( 'p', 'n3', colorCone );
		addLine( 'p', 'n4', colorCone );

		// up

		addLine( 'u1', 'u2', colorUp );
		addLine( 'u2', 'u3', colorUp );
		addLine( 'u3', 'u1', colorUp );

		// target

		addLine( 'c', 't', colorTarget );
		addLine( 'p', 'c', colorCross );

		// cross

		addLine( 'cn1', 'cn2', colorCross );
		addLine( 'cn3', 'cn4', colorCross );

		addLine( 'cf1', 'cf2', colorCross );
		addLine( 'cf3', 'cf4', colorCross );

		function addLine( a, b, color ) {

			addPoint( a, color );
			addPoint( b, color );

		}

		function addPoint( id, color ) {

			vertices.push( 0, 0, 0 );
			colors.push( color.r, color.g, color.b );

			if ( pointMap[ id ] === undefined ) {

				pointMap[ id ] = [];

			}

			pointMap[ id ].push( ( vertices.length / 3 ) - 1 );

		}

		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		super( geometry, material );

		this.type = 'CameraHelper';

		this.camera = camera;
		if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();

		this.matrix = camera.matrixWorld;
		this.matrixAutoUpdate = false;

		this.pointMap = pointMap;

		this.update();

	}

	update() {

		const geometry = this.geometry;
		const pointMap = this.pointMap;

		const w = 1, h = 1;

		// we need just camera projection matrix inverse
		// world matrix must be identity

		_camera.projectionMatrixInverse.copy( this.camera.projectionMatrixInverse );

		// center / target

		setPoint( 'c', pointMap, geometry, _camera, 0, 0, - 1 );
		setPoint( 't', pointMap, geometry, _camera, 0, 0, 1 );

		// near

		setPoint( 'n1', pointMap, geometry, _camera, - w, - h, - 1 );
		setPoint( 'n2', pointMap, geometry, _camera, w, - h, - 1 );
		setPoint( 'n3', pointMap, geometry, _camera, - w, h, - 1 );
		setPoint( 'n4', pointMap, geometry, _camera, w, h, - 1 );

		// far

		setPoint( 'f1', pointMap, geometry, _camera, - w, - h, 1 );
		setPoint( 'f2', pointMap, geometry, _camera, w, - h, 1 );
		setPoint( 'f3', pointMap, geometry, _camera, - w, h, 1 );
		setPoint( 'f4', pointMap, geometry, _camera, w, h, 1 );

		// up

		setPoint( 'u1', pointMap, geometry, _camera, w * 0.7, h * 1.1, - 1 );
		setPoint( 'u2', pointMap, geometry, _camera, - w * 0.7, h * 1.1, - 1 );
		setPoint( 'u3', pointMap, geometry, _camera, 0, h * 2, - 1 );

		// cross

		setPoint( 'cf1', pointMap, geometry, _camera, - w, 0, 1 );
		setPoint( 'cf2', pointMap, geometry, _camera, w, 0, 1 );
		setPoint( 'cf3', pointMap, geometry, _camera, 0, - h, 1 );
		setPoint( 'cf4', pointMap, geometry, _camera, 0, h, 1 );

		setPoint( 'cn1', pointMap, geometry, _camera, - w, 0, - 1 );
		setPoint( 'cn2', pointMap, geometry, _camera, w, 0, - 1 );
		setPoint( 'cn3', pointMap, geometry, _camera, 0, - h, - 1 );
		setPoint( 'cn4', pointMap, geometry, _camera, 0, h, - 1 );

		geometry.getAttribute( 'position' ).needsUpdate = true;

	}

	dispose() {

		this.geometry.dispose();
		this.material.dispose();

	}

}


function setPoint( point, pointMap, geometry, camera, x, y, z ) {

	_vector.set( x, y, z ).unproject( camera );

	const points = pointMap[ point ];

	if ( points !== undefined ) {

		const position = geometry.getAttribute( 'position' );

		for ( let i = 0, l = points.length; i < l; i ++ ) {

			position.setXYZ( points[ i ], _vector.x, _vector.y, _vector.z );

		}

	}

}

const _box = /*@__PURE__*/ new Box3();

class BoxHelper extends LineSegments {

	constructor( object, color = 0xffff00 ) {

		const indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
		const positions = new Float32Array( 8 * 3 );

		const geometry = new BufferGeometry();
		geometry.setIndex( new BufferAttribute( indices, 1 ) );
		geometry.setAttribute( 'position', new BufferAttribute( positions, 3 ) );

		super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) );

		this.object = object;
		this.type = 'BoxHelper';

		this.matrixAutoUpdate = false;

		this.update();

	}

	update( object ) {

		if ( object !== undefined ) {

			console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );

		}

		if ( this.object !== undefined ) {

			_box.setFromObject( this.object );

		}

		if ( _box.isEmpty() ) return;

		const min = _box.min;
		const max = _box.max;

		/*
			5____4
		1/___0/|
		| 6__|_7
		2/___3/

		0: max.x, max.y, max.z
		1: min.x, max.y, max.z
		2: min.x, min.y, max.z
		3: max.x, min.y, max.z
		4: max.x, max.y, min.z
		5: min.x, max.y, min.z
		6: min.x, min.y, min.z
		7: max.x, min.y, min.z
		*/

		const position = this.geometry.attributes.position;
		const array = position.array;

		array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;
		array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;
		array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;
		array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
		array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
		array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
		array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
		array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;

		position.needsUpdate = true;

		this.geometry.computeBoundingSphere();


	}

	setFromObject( object ) {

		this.object = object;
		this.update();

		return this;

	}

	copy( source ) {

		LineSegments.prototype.copy.call( this, source );

		this.object = source.object;

		return this;

	}

}

class Box3Helper extends LineSegments {

	constructor( box, color = 0xffff00 ) {

		const indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );

		const positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ];

		const geometry = new BufferGeometry();

		geometry.setIndex( new BufferAttribute( indices, 1 ) );

		geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );

		super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) );

		this.box = box;

		this.type = 'Box3Helper';

		this.geometry.computeBoundingSphere();

	}

	updateMatrixWorld( force ) {

		const box = this.box;

		if ( box.isEmpty() ) return;

		box.getCenter( this.position );

		box.getSize( this.scale );

		this.scale.multiplyScalar( 0.5 );

		super.updateMatrixWorld( force );

	}

}

class PlaneHelper extends Line {

	constructor( plane, size = 1, hex = 0xffff00 ) {

		const color = hex;

		const positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ];

		const geometry = new BufferGeometry();
		geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
		geometry.computeBoundingSphere();

		super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) );

		this.type = 'PlaneHelper';

		this.plane = plane;

		this.size = size;

		const positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ];

		const geometry2 = new BufferGeometry();
		geometry2.setAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
		geometry2.computeBoundingSphere();

		this.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false, toneMapped: false } ) ) );

	}

	updateMatrixWorld( force ) {

		let scale = - this.plane.constant;

		if ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter

		this.scale.set( 0.5 * this.size, 0.5 * this.size, scale );

		this.children[ 0 ].material.side = ( scale < 0 ) ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here

		this.lookAt( this.plane.normal );

		super.updateMatrixWorld( force );

	}

}

const _axis = /*@__PURE__*/ new Vector3();
let _lineGeometry, _coneGeometry;

class ArrowHelper extends Object3D {

	// dir is assumed to be normalized

	constructor( dir = new Vector3( 0, 0, 1 ), origin = new Vector3( 0, 0, 0 ), length = 1, color = 0xffff00, headLength = length * 0.2, headWidth = headLength * 0.2 ) {

		super();

		this.type = 'ArrowHelper';

		if ( _lineGeometry === undefined ) {

			_lineGeometry = new BufferGeometry();
			_lineGeometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );

			_coneGeometry = new CylinderGeometry( 0, 0.5, 1, 5, 1 );
			_coneGeometry.translate( 0, - 0.5, 0 );

		}

		this.position.copy( origin );

		this.line = new Line( _lineGeometry, new LineBasicMaterial( { color: color, toneMapped: false } ) );
		this.line.matrixAutoUpdate = false;
		this.add( this.line );

		this.cone = new Mesh( _coneGeometry, new MeshBasicMaterial( { color: color, toneMapped: false } ) );
		this.cone.matrixAutoUpdate = false;
		this.add( this.cone );

		this.setDirection( dir );
		this.setLength( length, headLength, headWidth );

	}

	setDirection( dir ) {

		// dir is assumed to be normalized

		if ( dir.y > 0.99999 ) {

			this.quaternion.set( 0, 0, 0, 1 );

		} else if ( dir.y < - 0.99999 ) {

			this.quaternion.set( 1, 0, 0, 0 );

		} else {

			_axis.set( dir.z, 0, - dir.x ).normalize();

			const radians = Math.acos( dir.y );

			this.quaternion.setFromAxisAngle( _axis, radians );

		}

	}

	setLength( length, headLength = length * 0.2, headWidth = headLength * 0.2 ) {

		this.line.scale.set( 1, Math.max( 0.0001, length - headLength ), 1 ); // see #17458
		this.line.updateMatrix();

		this.cone.scale.set( headWidth, headLength, headWidth );
		this.cone.position.y = length;
		this.cone.updateMatrix();

	}

	setColor( color ) {

		this.line.material.color.set( color );
		this.cone.material.color.set( color );

	}

	copy( source ) {

		super.copy( source, false );

		this.line.copy( source.line );
		this.cone.copy( source.cone );

		return this;

	}

}

class AxesHelper extends LineSegments {

	constructor( size = 1 ) {

		const vertices = [
			0, 0, 0,	size, 0, 0,
			0, 0, 0,	0, size, 0,
			0, 0, 0,	0, 0, size
		];

		const colors = [
			1, 0, 0,	1, 0.6, 0,
			0, 1, 0,	0.6, 1, 0,
			0, 0, 1,	0, 0.6, 1
		];

		const geometry = new BufferGeometry();
		geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } );

		super( geometry, material );

		this.type = 'AxesHelper';

	}

	setColors( xAxisColor, yAxisColor, zAxisColor ) {

		const color = new Color();
		const array = this.geometry.attributes.color.array;

		color.set( xAxisColor );
		color.toArray( array, 0 );
		color.toArray( array, 3 );

		color.set( yAxisColor );
		color.toArray( array, 6 );
		color.toArray( array, 9 );

		color.set( zAxisColor );
		color.toArray( array, 12 );
		color.toArray( array, 15 );

		this.geometry.attributes.color.needsUpdate = true;

		return this;

	}

	dispose() {

		this.geometry.dispose();
		this.material.dispose();

	}

}

class ShapePath {

	constructor() {

		this.type = 'ShapePath';

		this.color = new Color();

		this.subPaths = [];
		this.currentPath = null;

	}

	moveTo( x, y ) {

		this.currentPath = new Path();
		this.subPaths.push( this.currentPath );
		this.currentPath.moveTo( x, y );

		return this;

	}

	lineTo( x, y ) {

		this.currentPath.lineTo( x, y );

		return this;

	}

	quadraticCurveTo( aCPx, aCPy, aX, aY ) {

		this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );

		return this;

	}

	bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {

		this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );

		return this;

	}

	splineThru( pts ) {

		this.currentPath.splineThru( pts );

		return this;

	}

	toShapes( isCCW, noHoles ) {

		function toShapesNoHoles( inSubpaths ) {

			const shapes = [];

			for ( let i = 0, l = inSubpaths.length; i < l; i ++ ) {

				const tmpPath = inSubpaths[ i ];

				const tmpShape = new Shape();
				tmpShape.curves = tmpPath.curves;

				shapes.push( tmpShape );

			}

			return shapes;

		}

		function isPointInsidePolygon( inPt, inPolygon ) {

			const polyLen = inPolygon.length;

			// inPt on polygon contour => immediate success    or
			// toggling of inside/outside at every single! intersection point of an edge
			//  with the horizontal line through inPt, left of inPt
			//  not counting lowerY endpoints of edges and whole edges on that line
			let inside = false;
			for ( let p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {

				let edgeLowPt = inPolygon[ p ];
				let edgeHighPt = inPolygon[ q ];

				let edgeDx = edgeHighPt.x - edgeLowPt.x;
				let edgeDy = edgeHighPt.y - edgeLowPt.y;

				if ( Math.abs( edgeDy ) > Number.EPSILON ) {

					// not parallel
					if ( edgeDy < 0 ) {

						edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;
						edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;

					}

					if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) 		continue;

					if ( inPt.y === edgeLowPt.y ) {

						if ( inPt.x === edgeLowPt.x )		return	true;		// inPt is on contour ?
						// continue;				// no intersection or edgeLowPt => doesn't count !!!

					} else {

						const perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );
						if ( perpEdge === 0 )				return	true;		// inPt is on contour ?
						if ( perpEdge < 0 ) 				continue;
						inside = ! inside;		// true intersection left of inPt

					}

				} else {

					// parallel or collinear
					if ( inPt.y !== edgeLowPt.y ) 		continue;			// parallel
					// edge lies on the same horizontal line as inPt
					if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||
						 ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )		return	true;	// inPt: Point on contour !
					// continue;

				}

			}

			return	inside;

		}

		const isClockWise = ShapeUtils.isClockWise;

		const subPaths = this.subPaths;
		if ( subPaths.length === 0 ) return [];

		if ( noHoles === true )	return	toShapesNoHoles( subPaths );


		let solid, tmpPath, tmpShape;
		const shapes = [];

		if ( subPaths.length === 1 ) {

			tmpPath = subPaths[ 0 ];
			tmpShape = new Shape();
			tmpShape.curves = tmpPath.curves;
			shapes.push( tmpShape );
			return shapes;

		}

		let holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );
		holesFirst = isCCW ? ! holesFirst : holesFirst;

		// console.log("Holes first", holesFirst);

		const betterShapeHoles = [];
		const newShapes = [];
		let newShapeHoles = [];
		let mainIdx = 0;
		let tmpPoints;

		newShapes[ mainIdx ] = undefined;
		newShapeHoles[ mainIdx ] = [];

		for ( let i = 0, l = subPaths.length; i < l; i ++ ) {

			tmpPath = subPaths[ i ];
			tmpPoints = tmpPath.getPoints();
			solid = isClockWise( tmpPoints );
			solid = isCCW ? ! solid : solid;

			if ( solid ) {

				if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )	mainIdx ++;

				newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };
				newShapes[ mainIdx ].s.curves = tmpPath.curves;

				if ( holesFirst )	mainIdx ++;
				newShapeHoles[ mainIdx ] = [];

				//console.log('cw', i);

			} else {

				newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );

				//console.log('ccw', i);

			}

		}

		// only Holes? -> probably all Shapes with wrong orientation
		if ( ! newShapes[ 0 ] )	return	toShapesNoHoles( subPaths );


		if ( newShapes.length > 1 ) {

			let ambiguous = false;
			const toChange = [];

			for ( let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

				betterShapeHoles[ sIdx ] = [];

			}

			for ( let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

				const sho = newShapeHoles[ sIdx ];

				for ( let hIdx = 0; hIdx < sho.length; hIdx ++ ) {

					const ho = sho[ hIdx ];
					let hole_unassigned = true;

					for ( let s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {

						if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {

							if ( sIdx !== s2Idx )	toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );
							if ( hole_unassigned ) {

								hole_unassigned = false;
								betterShapeHoles[ s2Idx ].push( ho );

							} else {

								ambiguous = true;

							}

						}

					}

					if ( hole_unassigned ) {

						betterShapeHoles[ sIdx ].push( ho );

					}

				}

			}
			// console.log("ambiguous: ", ambiguous);

			if ( toChange.length > 0 ) {

				// console.log("to change: ", toChange);
				if ( ! ambiguous )	newShapeHoles = betterShapeHoles;

			}

		}

		let tmpHoles;

		for ( let i = 0, il = newShapes.length; i < il; i ++ ) {

			tmpShape = newShapes[ i ].s;
			shapes.push( tmpShape );
			tmpHoles = newShapeHoles[ i ];

			for ( let j = 0, jl = tmpHoles.length; j < jl; j ++ ) {

				tmpShape.holes.push( tmpHoles[ j ].h );

			}

		}

		//console.log("shape", shapes);

		return shapes;

	}

}

const _floatView = new Float32Array( 1 );
const _int32View = new Int32Array( _floatView.buffer );

class DataUtils {

	// Converts float32 to float16 (stored as uint16 value).

	static toHalfFloat( val ) {

		if ( val > 65504 ) {

			console.warn( 'THREE.DataUtils.toHalfFloat(): value exceeds 65504.' );

			val = 65504; // maximum representable value in float16

		}

		// Source: http://gamedev.stackexchange.com/questions/17326/conversion-of-a-number-from-single-precision-floating-point-representation-to-a/17410#17410

		/* This method is faster than the OpenEXR implementation (very often
		* used, eg. in Ogre), with the additional benefit of rounding, inspired
		* by James Tursa?s half-precision code. */

		_floatView[ 0 ] = val;
		const x = _int32View[ 0 ];

		let bits = ( x >> 16 ) & 0x8000; /* Get the sign */
		let m = ( x >> 12 ) & 0x07ff; /* Keep one extra bit for rounding */
		const e = ( x >> 23 ) & 0xff; /* Using int is faster here */

		/* If zero, or denormal, or exponent underflows too much for a denormal
			* half, return signed zero. */
		if ( e < 103 ) return bits;

		/* If NaN, return NaN. If Inf or exponent overflow, return Inf. */
		if ( e > 142 ) {

			bits |= 0x7c00;
			/* If exponent was 0xff and one mantissa bit was set, it means NaN,
						* not Inf, so make sure we set one mantissa bit too. */
			bits |= ( ( e == 255 ) ? 0 : 1 ) && ( x & 0x007fffff );
			return bits;

		}

		/* If exponent underflows but not too much, return a denormal */
		if ( e < 113 ) {

			m |= 0x0800;
			/* Extra rounding may overflow and set mantissa to 0 and exponent
				* to 1, which is OK. */
			bits |= ( m >> ( 114 - e ) ) + ( ( m >> ( 113 - e ) ) & 1 );
			return bits;

		}

		bits |= ( ( e - 112 ) << 10 ) | ( m >> 1 );
		/* Extra rounding. An overflow will set mantissa to 0 and increment
			* the exponent, which is OK. */
		bits += m & 1;
		return bits;

	}

}

const LineStrip = 0;
const LinePieces = 1;
const NoColors = 0;
const FaceColors = 1;
const VertexColors = 2;

function MeshFaceMaterial( materials ) {

	console.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' );
	return materials;

}

function MultiMaterial( materials = [] ) {

	console.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' );
	materials.isMultiMaterial = true;
	materials.materials = materials;
	materials.clone = function () {

		return materials.slice();

	};

	return materials;

}

function PointCloud( geometry, material ) {

	console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );
	return new Points( geometry, material );

}

function Particle( material ) {

	console.warn( 'THREE.Particle has been renamed to THREE.Sprite.' );
	return new Sprite( material );

}

function ParticleSystem( geometry, material ) {

	console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );
	return new Points( geometry, material );

}

function PointCloudMaterial( parameters ) {

	console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );
	return new PointsMaterial( parameters );

}

function ParticleBasicMaterial( parameters ) {

	console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );
	return new PointsMaterial( parameters );

}

function ParticleSystemMaterial( parameters ) {

	console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );
	return new PointsMaterial( parameters );

}

function Vertex( x, y, z ) {

	console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );
	return new Vector3( x, y, z );

}

//

function DynamicBufferAttribute( array, itemSize ) {

	console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead.' );
	return new BufferAttribute( array, itemSize ).setUsage( DynamicDrawUsage );

}

function Int8Attribute( array, itemSize ) {

	console.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' );
	return new Int8BufferAttribute( array, itemSize );

}

function Uint8Attribute( array, itemSize ) {

	console.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' );
	return new Uint8BufferAttribute( array, itemSize );

}

function Uint8ClampedAttribute( array, itemSize ) {

	console.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' );
	return new Uint8ClampedBufferAttribute( array, itemSize );

}

function Int16Attribute( array, itemSize ) {

	console.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' );
	return new Int16BufferAttribute( array, itemSize );

}

function Uint16Attribute( array, itemSize ) {

	console.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' );
	return new Uint16BufferAttribute( array, itemSize );

}

function Int32Attribute( array, itemSize ) {

	console.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' );
	return new Int32BufferAttribute( array, itemSize );

}

function Uint32Attribute( array, itemSize ) {

	console.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' );
	return new Uint32BufferAttribute( array, itemSize );

}

function Float32Attribute( array, itemSize ) {

	console.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' );
	return new Float32BufferAttribute( array, itemSize );

}

function Float64Attribute( array, itemSize ) {

	console.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' );
	return new Float64BufferAttribute( array, itemSize );

}

//

Curve.create = function ( construct, getPoint ) {

	console.log( 'THREE.Curve.create() has been deprecated' );

	construct.prototype = Object.create( Curve.prototype );
	construct.prototype.constructor = construct;
	construct.prototype.getPoint = getPoint;

	return construct;

};

//

Path.prototype.fromPoints = function ( points ) {

	console.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' );
	return this.setFromPoints( points );

};

//

function AxisHelper( size ) {

	console.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' );
	return new AxesHelper( size );

}

function BoundingBoxHelper( object, color ) {

	console.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' );
	return new BoxHelper( object, color );

}

function EdgesHelper( object, hex ) {

	console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );
	return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );

}

GridHelper.prototype.setColors = function () {

	console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );

};

SkeletonHelper.prototype.update = function () {

	console.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' );

};

function WireframeHelper( object, hex ) {

	console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );
	return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );

}

//

Loader.prototype.extractUrlBase = function ( url ) {

	console.warn( 'THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.' );
	return LoaderUtils.extractUrlBase( url );

};

Loader.Handlers = {

	add: function ( /* regex, loader */ ) {

		console.error( 'THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.' );

	},

	get: function ( /* file */ ) {

		console.error( 'THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.' );

	}

};

function XHRLoader( manager ) {

	console.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' );
	return new FileLoader( manager );

}

function BinaryTextureLoader( manager ) {

	console.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' );
	return new DataTextureLoader( manager );

}

//

Box2.prototype.center = function ( optionalTarget ) {

	console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );
	return this.getCenter( optionalTarget );

};

Box2.prototype.empty = function () {

	console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );
	return this.isEmpty();

};

Box2.prototype.isIntersectionBox = function ( box ) {

	console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );
	return this.intersectsBox( box );

};

Box2.prototype.size = function ( optionalTarget ) {

	console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );
	return this.getSize( optionalTarget );

};

//

Box3.prototype.center = function ( optionalTarget ) {

	console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );
	return this.getCenter( optionalTarget );

};

Box3.prototype.empty = function () {

	console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );
	return this.isEmpty();

};

Box3.prototype.isIntersectionBox = function ( box ) {

	console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );
	return this.intersectsBox( box );

};

Box3.prototype.isIntersectionSphere = function ( sphere ) {

	console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
	return this.intersectsSphere( sphere );

};

Box3.prototype.size = function ( optionalTarget ) {

	console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );
	return this.getSize( optionalTarget );

};

//

Sphere.prototype.empty = function () {

	console.warn( 'THREE.Sphere: .empty() has been renamed to .isEmpty().' );
	return this.isEmpty();

};

//

Frustum.prototype.setFromMatrix = function ( m ) {

	console.warn( 'THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix().' );
	return this.setFromProjectionMatrix( m );

};

//

Line3.prototype.center = function ( optionalTarget ) {

	console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );
	return this.getCenter( optionalTarget );

};

//

Matrix3.prototype.flattenToArrayOffset = function ( array, offset ) {

	console.warn( 'THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.' );
	return this.toArray( array, offset );

};

Matrix3.prototype.multiplyVector3 = function ( vector ) {

	console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );
	return vector.applyMatrix3( this );

};

Matrix3.prototype.multiplyVector3Array = function ( /* a */ ) {

	console.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' );

};

Matrix3.prototype.applyToBufferAttribute = function ( attribute ) {

	console.warn( 'THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead.' );
	return attribute.applyMatrix3( this );

};

Matrix3.prototype.applyToVector3Array = function ( /* array, offset, length */ ) {

	console.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' );

};

Matrix3.prototype.getInverse = function ( matrix ) {

	console.warn( 'THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.' );
	return this.copy( matrix ).invert();

};

//

Matrix4.prototype.extractPosition = function ( m ) {

	console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );
	return this.copyPosition( m );

};

Matrix4.prototype.flattenToArrayOffset = function ( array, offset ) {

	console.warn( 'THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.' );
	return this.toArray( array, offset );

};

Matrix4.prototype.getPosition = function () {

	console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );
	return new Vector3().setFromMatrixColumn( this, 3 );

};

Matrix4.prototype.setRotationFromQuaternion = function ( q ) {

	console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );
	return this.makeRotationFromQuaternion( q );

};

Matrix4.prototype.multiplyToArray = function () {

	console.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' );

};

Matrix4.prototype.multiplyVector3 = function ( vector ) {

	console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
	return vector.applyMatrix4( this );

};

Matrix4.prototype.multiplyVector4 = function ( vector ) {

	console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
	return vector.applyMatrix4( this );

};

Matrix4.prototype.multiplyVector3Array = function ( /* a */ ) {

	console.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' );

};

Matrix4.prototype.rotateAxis = function ( v ) {

	console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );
	v.transformDirection( this );

};

Matrix4.prototype.crossVector = function ( vector ) {

	console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
	return vector.applyMatrix4( this );

};

Matrix4.prototype.translate = function () {

	console.error( 'THREE.Matrix4: .translate() has been removed.' );

};

Matrix4.prototype.rotateX = function () {

	console.error( 'THREE.Matrix4: .rotateX() has been removed.' );

};

Matrix4.prototype.rotateY = function () {

	console.error( 'THREE.Matrix4: .rotateY() has been removed.' );

};

Matrix4.prototype.rotateZ = function () {

	console.error( 'THREE.Matrix4: .rotateZ() has been removed.' );

};

Matrix4.prototype.rotateByAxis = function () {

	console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );

};

Matrix4.prototype.applyToBufferAttribute = function ( attribute ) {

	console.warn( 'THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead.' );
	return attribute.applyMatrix4( this );

};

Matrix4.prototype.applyToVector3Array = function ( /* array, offset, length */ ) {

	console.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' );

};

Matrix4.prototype.makeFrustum = function ( left, right, bottom, top, near, far ) {

	console.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' );
	return this.makePerspective( left, right, top, bottom, near, far );

};

Matrix4.prototype.getInverse = function ( matrix ) {

	console.warn( 'THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.' );
	return this.copy( matrix ).invert();

};

//

Plane.prototype.isIntersectionLine = function ( line ) {

	console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );
	return this.intersectsLine( line );

};

//

Quaternion.prototype.multiplyVector3 = function ( vector ) {

	console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
	return vector.applyQuaternion( this );

};

Quaternion.prototype.inverse = function ( ) {

	console.warn( 'THREE.Quaternion: .inverse() has been renamed to invert().' );
	return this.invert();

};

//

Ray.prototype.isIntersectionBox = function ( box ) {

	console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );
	return this.intersectsBox( box );

};

Ray.prototype.isIntersectionPlane = function ( plane ) {

	console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );
	return this.intersectsPlane( plane );

};

Ray.prototype.isIntersectionSphere = function ( sphere ) {

	console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
	return this.intersectsSphere( sphere );

};

//

Triangle.prototype.area = function () {

	console.warn( 'THREE.Triangle: .area() has been renamed to .getArea().' );
	return this.getArea();

};

Triangle.prototype.barycoordFromPoint = function ( point, target ) {

	console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );
	return this.getBarycoord( point, target );

};

Triangle.prototype.midpoint = function ( target ) {

	console.warn( 'THREE.Triangle: .midpoint() has been renamed to .getMidpoint().' );
	return this.getMidpoint( target );

};

Triangle.prototypenormal = function ( target ) {

	console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );
	return this.getNormal( target );

};

Triangle.prototype.plane = function ( target ) {

	console.warn( 'THREE.Triangle: .plane() has been renamed to .getPlane().' );
	return this.getPlane( target );

};

Triangle.barycoordFromPoint = function ( point, a, b, c, target ) {

	console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );
	return Triangle.getBarycoord( point, a, b, c, target );

};

Triangle.normal = function ( a, b, c, target ) {

	console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );
	return Triangle.getNormal( a, b, c, target );

};

//

Shape.prototype.extractAllPoints = function ( divisions ) {

	console.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' );
	return this.extractPoints( divisions );

};

Shape.prototype.extrude = function ( options ) {

	console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );
	return new ExtrudeGeometry( this, options );

};

Shape.prototype.makeGeometry = function ( options ) {

	console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );
	return new ShapeGeometry( this, options );

};

//

Vector2.prototype.fromAttribute = function ( attribute, index, offset ) {

	console.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' );
	return this.fromBufferAttribute( attribute, index, offset );

};

Vector2.prototype.distanceToManhattan = function ( v ) {

	console.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
	return this.manhattanDistanceTo( v );

};

Vector2.prototype.lengthManhattan = function () {

	console.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' );
	return this.manhattanLength();

};

//

Vector3.prototype.setEulerFromRotationMatrix = function () {

	console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );

};

Vector3.prototype.setEulerFromQuaternion = function () {

	console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );

};

Vector3.prototype.getPositionFromMatrix = function ( m ) {

	console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );
	return this.setFromMatrixPosition( m );

};

Vector3.prototype.getScaleFromMatrix = function ( m ) {

	console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );
	return this.setFromMatrixScale( m );

};

Vector3.prototype.getColumnFromMatrix = function ( index, matrix ) {

	console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );
	return this.setFromMatrixColumn( matrix, index );

};

Vector3.prototype.applyProjection = function ( m ) {

	console.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' );
	return this.applyMatrix4( m );

};

Vector3.prototype.fromAttribute = function ( attribute, index, offset ) {

	console.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' );
	return this.fromBufferAttribute( attribute, index, offset );

};

Vector3.prototype.distanceToManhattan = function ( v ) {

	console.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
	return this.manhattanDistanceTo( v );

};

Vector3.prototype.lengthManhattan = function () {

	console.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' );
	return this.manhattanLength();

};

//

Vector4.prototype.fromAttribute = function ( attribute, index, offset ) {

	console.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' );
	return this.fromBufferAttribute( attribute, index, offset );

};

Vector4.prototype.lengthManhattan = function () {

	console.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' );
	return this.manhattanLength();

};

//

Object3D.prototype.getChildByName = function ( name ) {

	console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );
	return this.getObjectByName( name );

};

Object3D.prototype.renderDepth = function () {

	console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );

};

Object3D.prototype.translate = function ( distance, axis ) {

	console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );
	return this.translateOnAxis( axis, distance );

};

Object3D.prototype.getWorldRotation = function () {

	console.error( 'THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.' );

};

Object3D.prototype.applyMatrix = function ( matrix ) {

	console.warn( 'THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4().' );
	return this.applyMatrix4( matrix );

};

Object.defineProperties( Object3D.prototype, {

	eulerOrder: {
		get: function () {

			console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
			return this.rotation.order;

		},
		set: function ( value ) {

			console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
			this.rotation.order = value;

		}
	},
	useQuaternion: {
		get: function () {

			console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );

		},
		set: function () {

			console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );

		}
	}

} );

Mesh.prototype.setDrawMode = function () {

	console.error( 'THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.' );

};

Object.defineProperties( Mesh.prototype, {

	drawMode: {
		get: function () {

			console.error( 'THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode.' );
			return TrianglesDrawMode;

		},
		set: function () {

			console.error( 'THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.' );

		}
	}

} );

SkinnedMesh.prototype.initBones = function () {

	console.error( 'THREE.SkinnedMesh: initBones() has been removed.' );

};

//

PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {

	console.warn( 'THREE.PerspectiveCamera.setLens is deprecated. ' +
			'Use .setFocalLength and .filmGauge for a photographic setup.' );

	if ( filmGauge !== undefined ) this.filmGauge = filmGauge;
	this.setFocalLength( focalLength );

};

//

Object.defineProperties( Light.prototype, {
	onlyShadow: {
		set: function () {

			console.warn( 'THREE.Light: .onlyShadow has been removed.' );

		}
	},
	shadowCameraFov: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );
			this.shadow.camera.fov = value;

		}
	},
	shadowCameraLeft: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );
			this.shadow.camera.left = value;

		}
	},
	shadowCameraRight: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );
			this.shadow.camera.right = value;

		}
	},
	shadowCameraTop: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );
			this.shadow.camera.top = value;

		}
	},
	shadowCameraBottom: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );
			this.shadow.camera.bottom = value;

		}
	},
	shadowCameraNear: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );
			this.shadow.camera.near = value;

		}
	},
	shadowCameraFar: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );
			this.shadow.camera.far = value;

		}
	},
	shadowCameraVisible: {
		set: function () {

			console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );

		}
	},
	shadowBias: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );
			this.shadow.bias = value;

		}
	},
	shadowDarkness: {
		set: function () {

			console.warn( 'THREE.Light: .shadowDarkness has been removed.' );

		}
	},
	shadowMapWidth: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );
			this.shadow.mapSize.width = value;

		}
	},
	shadowMapHeight: {
		set: function ( value ) {

			console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );
			this.shadow.mapSize.height = value;

		}
	}
} );

//

Object.defineProperties( BufferAttribute.prototype, {

	length: {
		get: function () {

			console.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' );
			return this.array.length;

		}
	},
	dynamic: {
		get: function () {

			console.warn( 'THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.' );
			return this.usage === DynamicDrawUsage;

		},
		set: function ( /* value */ ) {

			console.warn( 'THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.' );
			this.setUsage( DynamicDrawUsage );

		}
	}

} );

BufferAttribute.prototype.setDynamic = function ( value ) {

	console.warn( 'THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead.' );
	this.setUsage( value === true ? DynamicDrawUsage : StaticDrawUsage );
	return this;

};

BufferAttribute.prototype.copyIndicesArray = function ( /* indices */ ) {

	console.error( 'THREE.BufferAttribute: .copyIndicesArray() has been removed.' );

},

BufferAttribute.prototype.setArray = function ( /* array */ ) {

	console.error( 'THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers' );

};

//

BufferGeometry.prototype.addIndex = function ( index ) {

	console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );
	this.setIndex( index );

};

BufferGeometry.prototype.addAttribute = function ( name, attribute ) {

	console.warn( 'THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute().' );

	if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {

		console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );

		return this.setAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );

	}

	if ( name === 'index' ) {

		console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );
		this.setIndex( attribute );

		return this;

	}

	return this.setAttribute( name, attribute );

};

BufferGeometry.prototype.addDrawCall = function ( start, count, indexOffset ) {

	if ( indexOffset !== undefined ) {

		console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );

	}

	console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );
	this.addGroup( start, count );

};

BufferGeometry.prototype.clearDrawCalls = function () {

	console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );
	this.clearGroups();

};

BufferGeometry.prototype.computeOffsets = function () {

	console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );

};

BufferGeometry.prototype.removeAttribute = function ( name ) {

	console.warn( 'THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute().' );

	return this.deleteAttribute( name );

};

BufferGeometry.prototype.applyMatrix = function ( matrix ) {

	console.warn( 'THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4().' );
	return this.applyMatrix4( matrix );

};

Object.defineProperties( BufferGeometry.prototype, {

	drawcalls: {
		get: function () {

			console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );
			return this.groups;

		}
	},
	offsets: {
		get: function () {

			console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );
			return this.groups;

		}
	}

} );

InterleavedBuffer.prototype.setDynamic = function ( value ) {

	console.warn( 'THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead.' );
	this.setUsage( value === true ? DynamicDrawUsage : StaticDrawUsage );
	return this;

};

InterleavedBuffer.prototype.setArray = function ( /* array */ ) {

	console.error( 'THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers' );

};

//

ExtrudeGeometry.prototype.getArrays = function () {

	console.error( 'THREE.ExtrudeGeometry: .getArrays() has been removed.' );

};

ExtrudeGeometry.prototype.addShapeList = function () {

	console.error( 'THREE.ExtrudeGeometry: .addShapeList() has been removed.' );

};

ExtrudeGeometry.prototype.addShape = function () {

	console.error( 'THREE.ExtrudeGeometry: .addShape() has been removed.' );

};

//

Scene.prototype.dispose = function () {

	console.error( 'THREE.Scene: .dispose() has been removed.' );

};

//

Uniform.prototype.onUpdate = function () {

	console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );
	return this;

};

//

Object.defineProperties( Material.prototype, {

	wrapAround: {
		get: function () {

			console.warn( 'THREE.Material: .wrapAround has been removed.' );

		},
		set: function () {

			console.warn( 'THREE.Material: .wrapAround has been removed.' );

		}
	},

	overdraw: {
		get: function () {

			console.warn( 'THREE.Material: .overdraw has been removed.' );

		},
		set: function () {

			console.warn( 'THREE.Material: .overdraw has been removed.' );

		}
	},

	wrapRGB: {
		get: function () {

			console.warn( 'THREE.Material: .wrapRGB has been removed.' );
			return new Color();

		}
	},

	shading: {
		get: function () {

			console.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );

		},
		set: function ( value ) {

			console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
			this.flatShading = ( value === FlatShading );

		}
	},

	stencilMask: {
		get: function () {

			console.warn( 'THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.' );
			return this.stencilFuncMask;

		},
		set: function ( value ) {

			console.warn( 'THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.' );
			this.stencilFuncMask = value;

		}
	},

	vertexTangents: {
		get: function () {

			console.warn( 'THREE.' + this.type + ': .vertexTangents has been removed.' );

		},
		set: function () {

			console.warn( 'THREE.' + this.type + ': .vertexTangents has been removed.' );

		}
	},

} );

Object.defineProperties( ShaderMaterial.prototype, {

	derivatives: {
		get: function () {

			console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
			return this.extensions.derivatives;

		},
		set: function ( value ) {

			console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
			this.extensions.derivatives = value;

		}
	}

} );

//

WebGLRenderer.prototype.clearTarget = function ( renderTarget, color, depth, stencil ) {

	console.warn( 'THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead.' );
	this.setRenderTarget( renderTarget );
	this.clear( color, depth, stencil );

};

WebGLRenderer.prototype.animate = function ( callback ) {

	console.warn( 'THREE.WebGLRenderer: .animate() is now .setAnimationLoop().' );
	this.setAnimationLoop( callback );

};

WebGLRenderer.prototype.getCurrentRenderTarget = function () {

	console.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' );
	return this.getRenderTarget();

};

WebGLRenderer.prototype.getMaxAnisotropy = function () {

	console.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' );
	return this.capabilities.getMaxAnisotropy();

};

WebGLRenderer.prototype.getPrecision = function () {

	console.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' );
	return this.capabilities.precision;

};

WebGLRenderer.prototype.resetGLState = function () {

	console.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' );
	return this.state.reset();

};

WebGLRenderer.prototype.supportsFloatTextures = function () {

	console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' );
	return this.extensions.get( 'OES_texture_float' );

};

WebGLRenderer.prototype.supportsHalfFloatTextures = function () {

	console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' );
	return this.extensions.get( 'OES_texture_half_float' );

};

WebGLRenderer.prototype.supportsStandardDerivatives = function () {

	console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' );
	return this.extensions.get( 'OES_standard_derivatives' );

};

WebGLRenderer.prototype.supportsCompressedTextureS3TC = function () {

	console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' );
	return this.extensions.get( 'WEBGL_compressed_texture_s3tc' );

};

WebGLRenderer.prototype.supportsCompressedTexturePVRTC = function () {

	console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' );
	return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );

};

WebGLRenderer.prototype.supportsBlendMinMax = function () {

	console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' );
	return this.extensions.get( 'EXT_blend_minmax' );

};

WebGLRenderer.prototype.supportsVertexTextures = function () {

	console.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' );
	return this.capabilities.vertexTextures;

};

WebGLRenderer.prototype.supportsInstancedArrays = function () {

	console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' );
	return this.extensions.get( 'ANGLE_instanced_arrays' );

};

WebGLRenderer.prototype.enableScissorTest = function ( boolean ) {

	console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );
	this.setScissorTest( boolean );

};

WebGLRenderer.prototype.initMaterial = function () {

	console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );

};

WebGLRenderer.prototype.addPrePlugin = function () {

	console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );

};

WebGLRenderer.prototype.addPostPlugin = function () {

	console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );

};

WebGLRenderer.prototype.updateShadowMap = function () {

	console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );

};

WebGLRenderer.prototype.setFaceCulling = function () {

	console.warn( 'THREE.WebGLRenderer: .setFaceCulling() has been removed.' );

};

WebGLRenderer.prototype.allocTextureUnit = function () {

	console.warn( 'THREE.WebGLRenderer: .allocTextureUnit() has been removed.' );

};

WebGLRenderer.prototype.setTexture = function () {

	console.warn( 'THREE.WebGLRenderer: .setTexture() has been removed.' );

};

WebGLRenderer.prototype.setTexture2D = function () {

	console.warn( 'THREE.WebGLRenderer: .setTexture2D() has been removed.' );

};

WebGLRenderer.prototype.setTextureCube = function () {

	console.warn( 'THREE.WebGLRenderer: .setTextureCube() has been removed.' );

};

WebGLRenderer.prototype.getActiveMipMapLevel = function () {

	console.warn( 'THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel().' );
	return this.getActiveMipmapLevel();

};

Object.defineProperties( WebGLRenderer.prototype, {

	shadowMapEnabled: {
		get: function () {

			return this.shadowMap.enabled;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );
			this.shadowMap.enabled = value;

		}
	},
	shadowMapType: {
		get: function () {

			return this.shadowMap.type;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );
			this.shadowMap.type = value;

		}
	},
	shadowMapCullFace: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );
			return undefined;

		},
		set: function ( /* value */ ) {

			console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );

		}
	},
	context: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .context has been removed. Use .getContext() instead.' );
			return this.getContext();

		}
	},
	vr: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .vr has been renamed to .xr' );
			return this.xr;

		}
	},
	gammaInput: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.' );
			return false;

		},
		set: function () {

			console.warn( 'THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.' );

		}
	},
	gammaOutput: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.' );
			return false;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.' );
			this.outputEncoding = ( value === true ) ? sRGBEncoding : LinearEncoding;

		}
	},
	toneMappingWhitePoint: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.' );
			return 1.0;

		},
		set: function () {

			console.warn( 'THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.' );

		}
	},
	gammaFactor: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .gammaFactor has been removed.' );
			return 2;

		},
		set: function () {

			console.warn( 'THREE.WebGLRenderer: .gammaFactor has been removed.' );

		}
	}
} );

Object.defineProperties( WebGLShadowMap.prototype, {

	cullFace: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );
			return undefined;

		},
		set: function ( /* cullFace */ ) {

			console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );

		}
	},
	renderReverseSided: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );
			return undefined;

		},
		set: function () {

			console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );

		}
	},
	renderSingleSided: {
		get: function () {

			console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );
			return undefined;

		},
		set: function () {

			console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );

		}
	}

} );

function WebGLRenderTargetCube( width, height, options ) {

	console.warn( 'THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options ).' );
	return new WebGLCubeRenderTarget( width, options );

}

//

Object.defineProperties( WebGLRenderTarget.prototype, {

	wrapS: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
			return this.texture.wrapS;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
			this.texture.wrapS = value;

		}
	},
	wrapT: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
			return this.texture.wrapT;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
			this.texture.wrapT = value;

		}
	},
	magFilter: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
			return this.texture.magFilter;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
			this.texture.magFilter = value;

		}
	},
	minFilter: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
			return this.texture.minFilter;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
			this.texture.minFilter = value;

		}
	},
	anisotropy: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
			return this.texture.anisotropy;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
			this.texture.anisotropy = value;

		}
	},
	offset: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
			return this.texture.offset;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
			this.texture.offset = value;

		}
	},
	repeat: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
			return this.texture.repeat;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
			this.texture.repeat = value;

		}
	},
	format: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
			return this.texture.format;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
			this.texture.format = value;

		}
	},
	type: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
			return this.texture.type;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
			this.texture.type = value;

		}
	},
	generateMipmaps: {
		get: function () {

			console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
			return this.texture.generateMipmaps;

		},
		set: function ( value ) {

			console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
			this.texture.generateMipmaps = value;

		}
	}

} );

//

Audio.prototype.load = function ( file ) {

	console.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' );
	const scope = this;
	const audioLoader = new AudioLoader();
	audioLoader.load( file, function ( buffer ) {

		scope.setBuffer( buffer );

	} );
	return this;

};


AudioAnalyser.prototype.getData = function () {

	console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );
	return this.getFrequencyData();

};

//

CubeCamera.prototype.updateCubeMap = function ( renderer, scene ) {

	console.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' );
	return this.update( renderer, scene );

};

CubeCamera.prototype.clear = function ( renderer, color, depth, stencil ) {

	console.warn( 'THREE.CubeCamera: .clear() is now .renderTarget.clear().' );
	return this.renderTarget.clear( renderer, color, depth, stencil );

};

ImageUtils.crossOrigin = undefined;

ImageUtils.loadTexture = function ( url, mapping, onLoad, onError ) {

	console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );

	const loader = new TextureLoader();
	loader.setCrossOrigin( this.crossOrigin );

	const texture = loader.load( url, onLoad, undefined, onError );

	if ( mapping ) texture.mapping = mapping;

	return texture;

};

ImageUtils.loadTextureCube = function ( urls, mapping, onLoad, onError ) {

	console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );

	const loader = new CubeTextureLoader();
	loader.setCrossOrigin( this.crossOrigin );

	const texture = loader.load( urls, onLoad, undefined, onError );

	if ( mapping ) texture.mapping = mapping;

	return texture;

};

ImageUtils.loadCompressedTexture = function () {

	console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );

};

ImageUtils.loadCompressedTextureCube = function () {

	console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );

};

//

function CanvasRenderer() {

	console.error( 'THREE.CanvasRenderer has been removed' );

}

//

function JSONLoader() {

	console.error( 'THREE.JSONLoader has been removed.' );

}

//

const SceneUtils = {

	createMultiMaterialObject: function ( /* geometry, materials */ ) {

		console.error( 'THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js' );

	},

	detach: function ( /* child, parent, scene */ ) {

		console.error( 'THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js' );

	},

	attach: function ( /* child, scene, parent */ ) {

		console.error( 'THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js' );

	}

};

//

function LensFlare() {

	console.error( 'THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js' );

}

//

function ParametricGeometry() {

	console.error( 'THREE.ParametricGeometry has been moved to /examples/jsm/geometries/ParametricGeometry.js' );
	return new BufferGeometry();

}

function TextGeometry() {

	console.error( 'THREE.TextGeometry has been moved to /examples/jsm/geometries/TextGeometry.js' );
	return new BufferGeometry();

}

function FontLoader() {

	console.error( 'THREE.FontLoader has been moved to /examples/jsm/loaders/FontLoader.js' );

}

function Font() {

	console.error( 'THREE.Font has been moved to /examples/jsm/loaders/FontLoader.js' );

}

function ImmediateRenderObject() {

	console.error( 'THREE.ImmediateRenderObject has been removed.' );

}

if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) {

	__THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'register', { detail: {
		revision: REVISION,
	} } ) );

}

if ( typeof window !== 'undefined' ) {

	if ( window.__THREE__ ) {

		console.warn( 'WARNING: Multiple instances of Three.js being imported.' );

	} else {

		window.__THREE__ = REVISION;

	}

}




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