Pygame + python：1 部分代码有 pygame.wait 而其余代码运行

Question

我正在制作一个游戏，你必须将移动的物体从一个地方带到另一个地方。我可以将我的角色移动到我需要放置东西的区域。我希望玩家在该区域等待 5 秒钟，然后将对象放置在那里，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，您将无法再移动，因为整个脚本将暂停。

---

有没有办法让脚本的一部分在其他部分运行时等待？

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时间。 Pygame 有一个带有tick() 方法的pygame.time.Clock 对象。下面是一个游戏循环可能会得到你想要的行为的样子（不是完整的代码，只是一个例子）。

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.

Answer 2

线程示例：

from threading import Thread

def threaded_function(arg):
    # check if it's been 5 seconds or user has left

thread = Thread(target = threaded_function, args = (10, ))
if user is in zone:
    thread.start()
# continue normal code

另一种可能的解决方案是检查用户进入该区域的时间，并不断检查当前时间是否为 5 秒

时间检查示例：

import time

entered = false
while true:
    if user has entered zone:
        entered_time = time.time()
        entered = true
    if entered and time.time() - entered_time >= 5: # i believe time.time() is in seconds not milliseconds
        # it has been 5 seconds
    if user has left:
        entered=false
    #other game code