// Notifications handlers
private void OnRestart(object obj)
{
Window.DataContext = null;
Window.DataContext = WindowVM;
WindowVM.ChangeViewModel(HelloVM);
WindowVM.OnRestart();
GameVM = new GameViewModel();
}
private void OnEndGame(object obj)
{
GameVM.StopGame();
SummaryVM.Score = GameVM.Score;
WindowVM.ChangeViewModel(SummaryVM);
}
private void OnStartGame(object obj)
{
GameVM.StartGame();
WindowVM.ChangeViewModel(GameVM);
}