private void Form1_KeyUp(object sender, KeyEventArgs e) { if (game != null) { if (e.KeyCode == Keys.Up) { game.Move(Directions.Up); return; } if (e.KeyCode == Keys.Down) { game.Move(Directions.Down); return; } if (e.KeyCode == Keys.Right) { game.Move(Directions.Right); return; } if (e.KeyCode == Keys.Left) { game.Move(Directions.Left); return; } } }