private void pictureBox_MouseClick(object sender, MouseEventArgs e) { Place place = (Place)((PictureBox)sender).Tag; string my_path = ""; if (apple.x == -1) { my_path = game.SolveMouse(place); } else { my_path = game.SolveApple(apple, place); apple.x = -1; apple.y = -1; } path = my_path; }