Cocos2d-js05-添加身体和移动身体 1、检测蛇是否吃到食物，代码：   //检测蛇是否吃到食物if(this._head.now_col==this._food.now_col && this._head.now_row==this._food.now_row){//播放音效cc.audioEngine.playEffect(res.bg_effect);cc.log("蛇吃到了食