//------------------------------------------------------------------------------------------------------------------------
 //                                                  Step()
 //------------------------------------------------------------------------------------------------------------------------
 //update the views
 public void Step()
 {
     _shopView.Step();
     _shopMessageView.Step();
     _itemInfoView.Step();
 }
 //------------------------------------------------------------------------------------------------------------------------
 //                                                  Step()
 //------------------------------------------------------------------------------------------------------------------------
 //update the views
 public void Step()
 {
     shopView.Step();
     shopMessageView.Step();
 }