/// <summary>
/// Removes a screen from the screen manager. You should normally
/// use GameScreen.ExitScreen instead of calling this directly, so
/// the screen can gradually transition off rather than just being
/// instantly removed.
/// </summary>
public void RemoveScreen(GameScreen screen)
{
// If we have a graphics device, tell the screen to unload content.
if ((graphicsDeviceService != null) &&
(graphicsDeviceService.GraphicsDevice != null))
{
screen.UnloadContent();
}
screens.Remove(screen);
screensToUpdate.Remove(screen);
}
/// <summary>
/// Adds a new screen to the screen manager.
/// </summary>
public void AddScreen(GameScreen screen)
{
screen.ScreenManager = this;
// If we have a graphics device, tell the screen to load content.
if ((graphicsDeviceService != null) &&
(graphicsDeviceService.GraphicsDevice != null))
{
screen.LoadContent();
}
screens.Add(screen);
}