public MainWindow()
{
InitializeComponent();
util = new GraphDrawUtil(myCanvas, level);
result = util.result;
Points.Text = $"Points: {points}";
Next.IsEnabled = false;
Answer.Focus();
}
private void Next_Click(object sender, RoutedEventArgs e)
{
Answer.Focus();
Check.IsEnabled = true;
Next.IsEnabled = false;
AnserChecker.Text = "";
Result.Text = "_____";
Answer.Text = "";
myCanvas.Children.Clear();
CheckPointsToNextLevel();
util = new GraphDrawUtil(myCanvas, level);
result = util.result;
Points.Text = $"Points: {points}";
}