Phaser.GameObjectFactory = function (game) {

	this.game = game;
	this.world = this.game.world;

};

Phaser.GameObjectFactory.prototype = {

	game: null,
    world: null,

	/**
    * Create a new Sprite with specific position and sprite sheet key.
    *
    * @param x {number} X position of the new sprite.
    * @param y {number} Y position of the new sprite.
    * @param [key] {string} The image key as defined in the Game.Cache to use as the texture for this sprite
    * @param [frame] {string|number} If the sprite uses an image from a texture atlas or sprite sheet you can pass the frame here. Either a number for a frame ID or a string for a frame name.
    * @returns {Sprite} The newly created sprite object.
    */
    sprite: function (x, y, key, frame) {

        if (typeof key === "undefined") { key = ''; }
        if (typeof frame === "undefined") { frame = null; }

        return this.world.add(new Phaser.Sprite(this.game, x, y, key, frame));

    },

    /**
    * Create a tween object for a specific object. The object can be any JavaScript object or Phaser object such as Sprite.
    *
    * @param obj {object} Object the tween will be run on.
    * @param [localReference] {bool} If true the tween will be stored in the object.tween property so long as it exists. If already set it'll be over-written.
    * @return {Phaser.Tween} The newly created tween object.
    */
    tween: function (obj, localReference) {

        if (typeof localReference === "undefined") { localReference = false; }

        return this.game.tweens.create(obj, localReference);

    },

    audio: function (key, volume, loop) {

        volume = volume || 1;
        loop = loop || false;

        return this.game.sound.add(key, volume, loop);
        
    }


};