【NGUI】通过射线检测被遮挡的物体

// Update is called once per framevoid Update (){Ray ray = UICamera.mainCamera.ScreenPointToRay (UICamera.mainCamera.WorldToScreenPoint(transform.position));// 向屏幕发射线RaycastHit hit;Debug.DrawLine(UICamera.mainCamera.transform.position,gameObject.transform.position,Color.blue);// 射线的碰撞检测if (Physics.Raycast (ray, out hit,200)) {print ("点到NGUI");Debug.Log(hit.collider.name);}Debug.Log(transform.position);}