private void execute_Move(object sender, EventArgs e)
        {
            for (int i = 0; i < SnakeArray.Count; i++)
            {
                if (i == 0)
                {
                    sn.MoveObject(headSmer);
                }
                else
                {
                    if (SnakeArray[0].PosX == SnakeArray[i].PosX && SnakeArray[0].PosY == SnakeArray[i].PosY)
                    {
                        output.Visibility = Visibility.Visible;
                        threading.Stop();
                    }
                }
                if (i == 1)
                {
                    int x = sn.LastPosX;
                    int y = sn.LastPosY;
                    SnakeArray[i].sledujHlavu(x, y);
                }
                if (i > 1)
                {
                    int x = SnakeArray[i - 1].LastPosX;
                    int y = SnakeArray[i - 1].LastPosY;
                    SnakeArray[i].sledujHlavu(x, y);
                }
            }

            if (jidlo != null)
            {
                if (SnakeArray[0].PosX == jidlo.PosX && SnakeArray[0].PosY == jidlo.PosY)
                {
                    partOfSnake newPart = new partOfSnake(had_grid, "BODY", SnakeArray[SnakeArray.Count - 1].LastPosX, SnakeArray[SnakeArray.Count - 1].LastPosY);
                    SnakeArray.Add(newPart);
                    had_grid.Children.Remove(jidlo.food_a);
                    jidlo = null;
                    points++;
                }
            }
            else
            {
                int xi = rnd.Next(0, 31);
                int yi = rnd.Next(0, 17);
                jidlo = new food(had_grid, xi, yi);
            }
            points_output.Content = "My points: " + points;
        }
        public MainWindow()
        {
            InitializeComponent();
            sn = new partOfSnake(had_grid, "HEAD", 5, 15);
            SnakeArray.Add(sn);
            partOfSnake had = new partOfSnake(had_grid, "BODY", 4, 15);

            SnakeArray.Add(had);
            partOfSnake had1 = new partOfSnake(had_grid, "BODY", 3, 15);

            SnakeArray.Add(had1);

            jidlo              = new food(had_grid, 10, 10);
            rnd                = new Random();
            threading          = new DispatcherTimer();
            threading.Interval = TimeSpan.FromMilliseconds(400);
            threading.Tick    += new EventHandler(execute_Move);
            threading.Start();
        }