public override Vector3 GetPositionYAxisUp()
 {
     if (TouchCount != 0)
     {
         return(RTInput.TouchPosition(0));
     }
     return(Vector3.zero);
 }
        public override Ray GetRay(Camera camera)
        {
            Ray ray = new Ray(Vector3.zero, Vector3.zero);

            if (TouchCount != 0)
            {
                ray = camera.ScreenPointToRay(RTInput.TouchPosition(0));
            }
            return(ray);
        }