phaser/src/gameobjects/GameObjectCreator.js at e9897c31f94edd218010a4e3635533dcba79be2f · ITCSsDeveloper/phaser · GitHub

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var Class = require('../utils/Class');
var PluginManager = require('../plugins/PluginManager');

/**
 * @classdesc
 * The Game Object Creator is a Scene plugin that allows you to quickly create many common
 * types of Game Objects and return them. Unlike the Game Object Factory, they are not automatically
 * added to the Scene.
 *
 * Game Objects directly register themselves with the Creator and inject their own creation
 * methods into the class.
 *
 * @class GameObjectCreator
 * @memberOf Phaser.GameObjects
 * @constructor
 * @since 3.0.0
 *
 * @param {Phaser.Scene} scene - The Scene to which this Game Object Factory belongs.
 */
var GameObjectCreator = new Class({

    initialize:

    function GameObjectCreator (scene)
    {
        /**
         * The Scene to which this Game Object Creator belongs.
         *
         * @name Phaser.GameObjects.GameObjectCreator#scene
         * @type {Phaser.Scene}
         * @protected
         * @since 3.0.0
         */
        this.scene = scene;

        /**
         * A reference to the Scene.Systems.
         *
         * @name Phaser.GameObjects.GameObjectCreator#systems
         * @type {Phaser.Scenes.Systems}
         * @protected
         * @since 3.0.0
         */
        this.systems = scene.sys;

        if (!scene.sys.settings.isBooted)
        {
            scene.sys.events.once('boot', this.boot, this);
        }

        /**
         * A reference to the Scene Display List.
         *
         * @name Phaser.GameObjects.GameObjectCreator#displayList
         * @type {Phaser.GameObjects.DisplayList}
         * @protected
         * @since 3.0.0
         */
        this.displayList;

        /**
         * A reference to the Scene Update List.
         *
         * @name Phaser.GameObjects.GameObjectCreator#updateList;
         * @type {Phaser.GameObjects.UpdateList}
         * @protected
         * @since 3.0.0
         */
        this.updateList;
    },

    /**
     * Boots the plugin.
     *
     * @method Phaser.GameObjects.GameObjectCreator#boot
     * @private
     * @since 3.0.0
     */
    boot: function ()
    {
        this.displayList = this.systems.displayList;
        this.updateList = this.systems.updateList;

        var eventEmitter = this.systems.events;

        eventEmitter.on('shutdown', this.shutdown, this);
        eventEmitter.on('destroy', this.destroy, this);
    },

    /**
     * Shuts this plugin down.
     *
     * @method Phaser.GameObjects.GameObjectCreator#shutdown
     * @since 3.0.0
     */
    shutdown: function ()
    {
    },

    /**
     * Destroys this plugin.
     *
     * @method Phaser.GameObjects.GameObjectCreator#destroy
     * @since 3.0.0
     */
    destroy: function ()
    {
        this.scene = null;
        this.displayList = null;
        this.updateList = null;
    }

});

//  Static method called directly by the Game Object creator functions

GameObjectCreator.register = function (type, factoryFunction)
{
    if (!GameObjectCreator.prototype.hasOwnProperty(type))
    {
        GameObjectCreator.prototype[type] = factoryFunction;
    }
};

PluginManager.register('GameObjectCreator', GameObjectCreator, 'make');

module.exports = GameObjectCreator;