Had – Logika hry – Řešení [3]

    def move(self):
        old_x, old_y = self.snake[-1]
        dir_x, dir_y = self.snake_direction
        new_x = old_x + dir_x
        new_y = old_y + dir_y

        # Kontrola vylezení z hrací plochy
        if new_x < 0:
            exit('GAME OVER')
        if new_y < 0:
            exit('GAME OVER')
        if new_x >= self.width:
            exit('GAME OVER')
        if new_y >= self.height:
            exit('GAME OVER')

        new_head = new_x, new_y
        self.snake.append(new_head)
        del self.snake[0]