python - Pygame + python : 1 part of code has pygame. 等待其余代码运行

Question

我正在制作一款游戏，您必须将物体从一个地方移动到另一个地方。我可以将我的角色移动到我需要放置东西的区域。我希望玩家在将对象放置在那里之前在该区域中等待 5 秒，但是，如果我这样做，如果您决定不想将对象放置在该区域中，则您将无法再移动，因为整个脚本将暂停。

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有没有一种方法可以让脚本的一部分在其余部分运行时等待？

Answer 1

每个游戏都需要一个时钟来保持游戏循环同步并控制计时。 Pygame 有一个 pygame.time.Clock带有 tick() 的对象方法。以下是获得您想要的行为的游戏循环的样子(不是完整的代码，只是一个示例)。

clock = pygame.time.Clock()

wait_time = 0
have_visited_zone = False
waiting_for_block_placement = False

# Game loop.
while True:

    # Get the time (in milliseconds) since last loop (and lock framerate at 60 FPS).
    dt = clock.tick(60)

    # Move the player.
    player.position += player.velocity * dt

    # Player enters the zone for the first time.
    if player.rect.colliderect(zone.rect) and not have_visited_zone:
        have_visited_zone = True            # Remember to set this to True!
        waiting_for_block_placement = True  # We're now waiting.
        wait_time = 5000                    # We'll wait 5000 milliseconds.

    # Check if we're currently waiting for the block-placing action.
    if waiting_for_block_placement:
        wait_time -= dt                          # Decrease the time if we're waiting.
        if wait_time <= 0:                       # If the time has gone to 0 (or past 0)
            waiting_for_block_placement = False  # stop waiting
            place_block()                        # and place the block.