docs: function Menu (opts) {
      Menu.superclass.constructor.call(this, opts)
  
      var items = opts.items
  
      if (Director.sharedDirector.isTouchScreen) {
          this.isTouchEnabled = true
      } else {
          this.isMouseEnabled = true
      }
  
      var s = Director.sharedDirector.winSize
  
      this.isRelativeAnchorPoint = false
      this.anchorPoint = ccp(0.5, 0.5)
      this.contentSize = s
  
      this.position = ccp(s.width / 2, s.height / 2)
  
  
      if (items) {
          var z = 0
          items.forEach(function (item) {
              this.addChild({child: item, z: z++})
          }.bind(this))
      }
  }