cc.ModelLayerColor = cc.LayerColor.extend({  m_touchListener:null,  ctor:function(){    this._super();    var touchListener = {      event: cc.EventListener.TOUCH_ONE_BY_ONE,      swallowTouches: true,      onTouchBegan: this.onTouchBegan    };    cc.eventManager.addListener(touchListener, this);    this.m_touchListener = touchListener;  },  onTouchBegan:function(touch, event) {    var target = event.getCurrentTarget();    if(!target.isVisible() || (!this.isTouchInside(target,touch))){      return false;    }    return true;  },  isTouchInside: function (owner,touch) {    if(!owner || !owner.getParent()){      return false;    }    var touchLocation = touch.getLocation(); // Get the touch position    touchLocation = owner.getParent().convertToNodeSpace(touchLocation);    return cc.rectContainsPoint(owner.getBoundingBox(), touchLocation);  }});

这里要把swallowTouches设置为true，这样onTouchBegan返回true才能够吞噬触摸，不继续往优先级更低的层传递，从而实现遮挡层。