// Update is called once per frame
 void Update()
 {
     if (Input.touches.Length <= 0) //if no touches
     {
         // do nothing
         return;
     }
     else //if the screen is being touched
     {
         if (UpBtn.BeingPressed())
         {
             //Input
         }
         else if (DownBtn.BeingPressed())
         {
         }
         else if (LBtn.BeingPressed())
         {
         }
         else if (RBtn.BeingPressed())
         {
         }
     }
 }