Question

我正在制作蛇游戏。每当我按箭头键向一个方向移动然后按另一个方向的键，蛇就会对角线。（例如，如果我先按下然后按下。）即使释放了上一个键，也会发生这种情况。我怎么能阻止这个？

# x and y marks the player's position

if event.type == pygame.KEYDOWN:
    if event.key == pygame.K_LEFT:
        x_change = -10
    if event.key == pygame.K_RIGHT:
        x_change = 10
    if event.key == pygame.K_UP:
        y_change = -10
    if event.key == pygame.K_DOWN:
        y_change = 10
    x += x_change
    y += y_change

Answer 1

我添加了x_change = 0和if event.type == pygame.KEYDOWN: if event.key == pygame.K_LEFT: x_change = -10 y_change = 0 if event.key == pygame.K_RIGHT: x_change = 10 y_change = 0 if event.key == pygame.K_UP: y_change = -10 x_change = 0 if event.key == pygame.K_DOWN: y_change = 10 x_change = 0 x += x_change y += y_change来重置值，只保持正交移动。

parser = argparse.ArgumentParser(description=scriptdesc)
parser.add_argument("-l", "--list", help="Show current running sesssions", dest="l_list", type=str, default=None)

如何阻止精灵使用Pygame对角移动？

1 个答案: