"use strict"; var __defProp = Object.defineProperty; var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value; var __publicField = (obj, key, value) => { __defNormalProp(obj, typeof key !== "symbol" ? key + "" : key, value); return value; }; Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" }); class EventDispatcher { constructor() { // not defined in @types/three __publicField(this, "_listeners"); } /** * Adds a listener to an event type. * @param type The type of event to listen to. * @param listener The function that gets called when the event is fired. */ addEventListener(type, listener) { if (this._listeners === void 0) this._listeners = {}; const listeners = this._listeners; if (listeners[type] === void 0) { listeners[type] = []; } if (listeners[type].indexOf(listener) === -1) { listeners[type].push(listener); } } /** * Checks if listener is added to an event type. * @param type The type of event to listen to. * @param listener The function that gets called when the event is fired. */ hasEventListener(type, listener) { if (this._listeners === void 0) return false; const listeners = this._listeners; return listeners[type] !== void 0 && listeners[type].indexOf(listener) !== -1; } /** * Removes a listener from an event type. * @param type The type of the listener that gets removed. * @param listener The listener function that gets removed. */ removeEventListener(type, listener) { if (this._listeners === void 0) return; const listeners = this._listeners; const listenerArray = listeners[type]; if (listenerArray !== void 0) { const index = listenerArray.indexOf(listener); if (index !== -1) { listenerArray.splice(index, 1); } } } /** * Fire an event type. * @param event The event that gets fired. */ dispatchEvent(event) { if (this._listeners === void 0) return; const listeners = this._listeners; const listenerArray = listeners[event.type]; if (listenerArray !== void 0) { event.target = this; const array = listenerArray.slice(0); for (let i = 0, l = array.length; i < l; i++) { array[i].call(this, event); } event.target = null; } } } exports.EventDispatcher = EventDispatcher; //# sourceMappingURL=EventDispatcher.cjs.map