private void OnBackButton(object sender, BackPressedEventArgs e)
{
if (_gameScreen == null)
{
e.Handled = false;
}
else
{
e.Handled = true;
var dlg = new MessageDialog("Are you sure you want to quit the game?", "Quit?");
dlg.Commands.Add(new UICommand("Yes", command =>
{
_gameScreen.Cleanup();
_gameScreen = null;
}));
dlg.Commands.Add(new UICommand("No"));
dlg.CancelCommandIndex = 1;
dlg.ShowAsync();
}
}
protected void OnGameStart()
{
if (MediaPlayer.GameHasControl)
MediaPlayer.Stop();
_gameScreen = new GameScreen(Content, _drawState.ScreenBounds);
_gameScreen.OnGameOver += () =>
{
_gameScreen.Cleanup();
_gameScreen = null;
};
}