text: /**
   * @author       Richard Davey <rich@photonstorm.com>
   * @copyright    2018 Photon Storm Ltd.
   * @license      {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
   */
  
  var Class = require('../utils/Class');
  var EE = require('eventemitter3');
  var PluginManager = require('../boot/PluginManager');
  
  /**
   * @namespace Phaser.Events
   */
  
  /**
   * @classdesc
   * EventEmitter is a Scene Systems plugin compatible version of eventemitter3.
   *
   * @class EventEmitter
   * @memberOf Phaser.Events
   * @constructor
   * @since 3.0.0
   */
  var EventEmitter = new Class({
  
      Extends: EE,
  
      initialize:
  
      function EventEmitter ()
      {
          EE.call(this);
      },
  
      /**
       * Removes all listeners.
       *
       * @method Phaser.Events.EventEmitter#shutdown
       * @since 3.0.0
       */
      shutdown: function ()
      {
          this.removeAllListeners();
      },
  
      /**
       * Removes all listeners.
       *
       * @method Phaser.Events.EventEmitter#destroy
       * @since 3.0.0
       */
      destroy: function ()
      {
          this.removeAllListeners();
      }
  
  });
  
  /**
   * Return an array listing the events for which the emitter has registered listeners.
   *
   * @method Phaser.Events.EventEmitter#eventNames
   * @since 3.0.0
   *
   * @return {array}
   */
  
  /**
   * Return the listeners registered for a given event.
   *
   * @method Phaser.Events.EventEmitter#listeners
   * @since 3.0.0
   *
   * @param {(string|symbol)} event - The event name.
   *
   * @return {array} The registered listeners.
   */
  
  /**
   * Return the number of listeners listening to a given event.
   *
   * @method Phaser.Events.EventEmitter#listenerCount
   * @since 3.0.0
   *
   * @param {(string|symbol)} event - The event name.
   *
   * @return {number} The number of listeners.
   */
  
  /**
   * Calls each of the listeners registered for a given event.
   *
   * @method Phaser.Events.EventEmitter#emit
   * @since 3.0.0
   *
   * @param {(string|symbol)} event - The event name.
   * @param {...*} [args] - Additional arguments that will be passed to the event handler.
   *
   * @return {boolean} `true` if the event had listeners, else `false`.
   */
  
  /**
   * Add a listener for a given event.
   *
   * @method Phaser.Events.EventEmitter#on
   * @since 3.0.0
   *
   * @param {(string|symbol)} event - The event name.
   * @param {function} fn - The listener function.
   * @param {*} [context=this] - The context to invoke the listener with.
   *
   * @return {Phaser.Events.EventEmitter} `this`.
   */
  
  /**
   * Add a listener for a given event.
   *
   * @method Phaser.Events.EventEmitter#addListener
   * @since 3.0.0
   *
   * @param {(string|symbol)} event - The event name.
   * @param {function} fn - The listener function.
   * @param {*} [context=this] - The context to invoke the listener with.
   *
   * @return {Phaser.Events.EventEmitter} `this`.
   */
  
  /**
   * Add a one-time listener for a given event.
   *
   * @method Phaser.Events.EventEmitter#once
   * @since 3.0.0
   *
   * @param {(string|symbol)} event - The event name.
   * @param {function} fn - The listener function.
   * @param {*} [context=this] - The context to invoke the listener with.
   *
   * @return {Phaser.Events.EventEmitter} `this`.
   */
  
  /**
   * Remove the listeners of a given event.
   *
   * @method Phaser.Events.EventEmitter#removeListener
   * @since 3.0.0
   *
   * @param {(string|symbol)} event - The event name.
   * @param {function} fn - Only remove the listeners that match this function.
   * @param {*} context - Only remove the listeners that have this context.
   * @param {boolean} once - Only remove one-time listeners.
   *
   * @return {Phaser.Events.EventEmitter} `this`.
   */
  
  /**
   * Remove the listeners of a given event.
   *
   * @method Phaser.Events.EventEmitter#off
   * @since 3.0.0
   *
   * @param {(string|symbol)} event - The event name.
   * @param {function} fn - Only remove the listeners that match this function.
   * @param {*} context - Only remove the listeners that have this context.
   * @param {boolean} once - Only remove one-time listeners.
   *
   * @return {Phaser.Events.EventEmitter} `this`.
   */
  
  /**
   * Remove all listeners, or those of the specified event.
   *
   * @method Phaser.Events.EventEmitter#removeAllListeners
   * @since 3.0.0
   *
   * @param {(string|symbol)} [event] - The event name.
   *
   * @return {Phaser.Events.EventEmitter} `this`.
   */
  
  PluginManager.register('EventEmitter', EventEmitter, 'events');
  
  module.exports = EventEmitter;
  