private void StartNewGame_Click(object sender, RoutedEventArgs e)
        {
            pc = new PointCounter();
            //up = new Upgrade();
            pc.Initialize();
            pc.OnTick += (points) =>
            {
            };

            Upgrade1Btn.Visibility = Visibility.Visible;
            Upgrade2Btn.Visibility = Visibility.Visible;
        }