Lua 处理触控事件及碰撞检测

 function initData(self)

    
     self.gold = self.group.gold
    
     self.item = self.group.item
    
  
    
     self.winSize = self.group.bg:getContentSize()
    
     self.goldSize = self.gold:getContentSize()
    
     self.itemSize = self.group.item:getContentSize()
    
     self.width = self.winSize.width - self.goldSize.width
    
     self.height = self.winSize.height - self.goldSize.height
    
  
    
     self._oldPosX = 0
    
     self._oldGoldX = 0
    
     self._oldPosY = 0
    
     self._oldGoldY = 0
    
  
    
     self:addEventListener(Event.TouchEvent, onTouch