(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(["exports", "three", "../libs/opentype.module.min.js"], factory);
  } else if (typeof exports !== "undefined") {
    factory(exports, require("three"), require("../libs/opentype.module.min.js"));
  } else {
    var mod = {
      exports: {}
    };
    factory(mod.exports, global.three, global.opentypeModuleMin);
    global.TTFLoader = mod.exports;
  }
})(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : this, function (_exports, _three, _opentypeModuleMin) {
  "use strict";

  Object.defineProperty(_exports, "__esModule", {
    value: true
  });
  _exports.TTFLoader = void 0;

  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); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }

  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } Object.defineProperty(subClass, "prototype", { value: Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }), writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }

  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

  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 _possibleConstructorReturn(self, call) { if (call && (typeof call === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }

  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

  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 _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

  /**
   * Requires opentype.js to be included in the project.
   * Loads TTF files and converts them into typeface JSON that can be used directly
   * to create THREE.Font objects.
   */
  var TTFLoader = /*#__PURE__*/function (_Loader) {
    _inherits(TTFLoader, _Loader);

    var _super = _createSuper(TTFLoader);

    function TTFLoader(manager) {
      var _this;

      _classCallCheck(this, TTFLoader);

      _this = _super.call(this, manager);
      _this.reversed = false;
      return _this;
    }

    _createClass(TTFLoader, [{
      key: "load",
      value: function load(url, onLoad, onProgress, onError) {
        var scope = 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) {
          try {
            onLoad(scope.parse(buffer));
          } catch (e) {
            if (onError) {
              onError(e);
            } else {
              console.error(e);
            }

            scope.manager.itemError(url);
          }
        }, onProgress, onError);
      }
    }, {
      key: "parse",
      value: function parse(arraybuffer) {
        function convert(font, reversed) {
          var round = Math.round;
          var glyphs = {};
          var scale = 100000 / ((font.unitsPerEm || 2048) * 72);
          var glyphIndexMap = font.encoding.cmap.glyphIndexMap;
          var unicodes = Object.keys(glyphIndexMap);

          for (var i = 0; i < unicodes.length; i++) {
            var unicode = unicodes[i];
            var glyph = font.glyphs.glyphs[glyphIndexMap[unicode]];

            if (unicode !== undefined) {
              (function () {
                var token = {
                  ha: round(glyph.advanceWidth * scale),
                  x_min: round(glyph.xMin * scale),
                  x_max: round(glyph.xMax * scale),
                  o: ''
                };

                if (reversed) {
                  glyph.path.commands = reverseCommands(glyph.path.commands);
                }

                glyph.path.commands.forEach(function (command) {
                  if (command.type.toLowerCase() === 'c') {
                    command.type = 'b';
                  }

                  token.o += command.type.toLowerCase() + ' ';

                  if (command.x !== undefined && command.y !== undefined) {
                    token.o += round(command.x * scale) + ' ' + round(command.y * scale) + ' ';
                  }

                  if (command.x1 !== undefined && command.y1 !== undefined) {
                    token.o += round(command.x1 * scale) + ' ' + round(command.y1 * scale) + ' ';
                  }

                  if (command.x2 !== undefined && command.y2 !== undefined) {
                    token.o += round(command.x2 * scale) + ' ' + round(command.y2 * scale) + ' ';
                  }
                });
                glyphs[String.fromCodePoint(glyph.unicode)] = token;
              })();
            }
          }

          return {
            glyphs: glyphs,
            familyName: font.getEnglishName('fullName'),
            ascender: round(font.ascender * scale),
            descender: round(font.descender * scale),
            underlinePosition: font.tables.post.underlinePosition,
            underlineThickness: font.tables.post.underlineThickness,
            boundingBox: {
              xMin: font.tables.head.xMin,
              xMax: font.tables.head.xMax,
              yMin: font.tables.head.yMin,
              yMax: font.tables.head.yMax
            },
            resolution: 1000,
            original_font_information: font.tables.name
          };
        }

        function reverseCommands(commands) {
          var paths = [];
          var path;
          commands.forEach(function (c) {
            if (c.type.toLowerCase() === 'm') {
              path = [c];
              paths.push(path);
            } else if (c.type.toLowerCase() !== 'z') {
              path.push(c);
            }
          });
          var reversed = [];
          paths.forEach(function (p) {
            var result = {
              type: 'm',
              x: p[p.length - 1].x,
              y: p[p.length - 1].y
            };
            reversed.push(result);

            for (var i = p.length - 1; i > 0; i--) {
              var command = p[i];
              var _result = {
                type: command.type
              };

              if (command.x2 !== undefined && command.y2 !== undefined) {
                _result.x1 = command.x2;
                _result.y1 = command.y2;
                _result.x2 = command.x1;
                _result.y2 = command.y1;
              } else if (command.x1 !== undefined && command.y1 !== undefined) {
                _result.x1 = command.x1;
                _result.y1 = command.y1;
              }

              _result.x = p[i - 1].x;
              _result.y = p[i - 1].y;
              reversed.push(_result);
            }
          });
          return reversed;
        }

        if (typeof _opentypeModuleMin.opentype === 'undefined') {
          console.warn('THREE.TTFLoader: The loader requires opentype.js. Make sure it\'s included before using the loader.');
          return null;
        }

        return convert(_opentypeModuleMin.opentype.parse(arraybuffer), this.reversed); // eslint-disable-line no-undef
      }
    }]);

    return TTFLoader;
  }(_three.Loader);

  _exports.TTFLoader = TTFLoader;
});