public GameScore()
{
IGameFlow gameFlow = GameFacade.GameFlow;
scoreChange = new ValueChage <int>();
timer = new Timer();
timer.Elapsed += HandleElapsed;
gameFlow.GameStart += (sender, e) => Start();
gameFlow.GameStop += (sender, e) => Pause();
gameFlow.GameResume += (sender, e) => Resume();
gameFlow.GameRestart += (sender, e) => Restart();
gameFlow.GamePause += (sender, e) => Pause();
gameFlow.GameExit += (sender, e) => Stop();
}
