unity 使用Image的RectTransform来进行判断是否点击到

   public RectTransform LeftTouchArea;
    public RectTransform RightTouchArea;
  private void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
        //获取鼠标的位置
            Vector2 mousePos = Input.mousePosition;
            //判断Image的坐标是否包含点击的坐标
            if (RectTransformUtility.RectangleContainsScreenPoint(LeftTouchArea, mousePos))
            {
               
            }
            else if (RectTransformUtility.RectangleContainsScreenPoint(RightTouchArea, mousePos))
            {
              
            }
        }       
    }
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