private void CheckClicks()
 {
     if (Input.GetButtonDown("Fire1"))
     {
         gridController.SelectBlock(GetMouseWorldPosition());
     }
     else if (Input.GetButton("Fire1"))
     {
         gridController.DragBlock(GetMouseWorldPosition());
     }
     else if (Input.GetButtonUp("Fire1"))
     {
         gridController.DeselectBlock();
     }
 }