protected void GoToScreen(Screen screen)
 {
     manager.GoTo(screen);
 }
 /// <summary>
 /// Transition from the current active screen to the supplied new screen.
 /// </summary>
 /// <param name="screen">The screen to transition to.</param>
 public void GoTo(Screen screen)
 {
     this.activeScreen = screen;
     activeScreen.LoadContent(this.contentManager);
 }