code: function AtlasNode (opts) {
      AtlasNode.superclass.constructor.call(this, opts)
  
      this.itemWidth = opts.itemWidth
      this.itemHeight = opts.itemHeight
  
      this.textureAtlas = new TextureAtlas({file: opts.file, capacity: opts.itemsToRender})
  
  
      this._calculateMaxItems()
  }
docs: @class
  It knows how to render a TextureAtlas object. If you are going to
  render a TextureAtlas consider subclassing cocos.nodes.AtlasNode (or a
  subclass of cocos.nodes.AtlasNode)
  
  @memberOf cocos.nodes
  @extends cocos.nodes.SpriteBatchNode
  
  @opt {String} file Path to Atals image
  @opt {Integer} itemWidth Character width
  @opt {Integer} itemHeight Character height
  @opt {Integer} itemsToRender Quantity of items to render