public void Undo()
 {
     _undo.Excute();
 }
 public void Stop()
 {
     _stop.Excute();
 }
 public void MoveForwards()
 {
     _moveforwards.Excute();
 }
 public void MoveBackwards()
 {
     _movebackwards.Excute();
 }
 public void Start()
 {
     _start.Excute();
 }