Phaser.Plugin.SamplePlugin = function (game, parent){ 
Phaser.Plugin.call(this, game, parent); 
this.sprite = null ; 
} 
; 
Phaser.Plugin.SamplePlugin.prototype = Object.create(Phaser.Plugin.prototype); 
Phaser.Plugin.SamplePlugin.prototype.constructor = Phaser.Plugin.SamplePlugin; 
Phaser.Plugin.SamplePlugin.prototype.addSprite = function (sprite){ 
this.sprite = sprite; 
} 
; 
Phaser.Plugin.SamplePlugin.prototype.update = function (){ 
if (this.sprite) { 
this.sprite.x += 0.5; 
} 
} 
;