public MainWindow() { InitializeComponent(); GameTimer.Interval = TimeSpan.FromMilliseconds(120); LblSpeed.Content = "Geschwindigkeit: 120ms"; GameTimer.Tick += GameTimer_Elapsed; PreviewKeyDown += MainWindow_PreviewKeyDown; playGrid = new PlayGrid(GrdField, 20); playGrid.PlaceSnake(0, 0); GameTimer.Start(); }