如何在Python中只运行一次ASCIImatics动画？

Question

我试图让来自ASCIImatics的动画只运行一次，然后进入我的正常代码。就像你可以说的引子。有没有办法只运行一次动画，一旦你按下空格键，它就会中断动画，转到正常的代码体？目前动画在你按下空格键后循环运行，正如我所说的，我正试图让它只运行一次。谢谢!

from random import randint
from asciimatics.effects import Print
from asciimatics.particles import Explosion, StarFirework, DropScreen, Rain, \
    ShootScreen
from asciimatics.renderers import SpeechBubble, FigletText, Rainbow
from asciimatics.scene import Scene
from asciimatics.screen import Screen
from asciimatics.exceptions import ResizeScreenError
import sys
from asciimatics.effects import Cycle, Stars
import time
 
def demo(screen):
    screen.set_title("ASCIIMATICS demo")
 
    scenes = []
 
    # First scene: title page
    effects = [
        Stars
            (screen, 200),
        Cycle(screen,
              Rainbow(screen, FigletText("Welcome to", font="big")),
              y=screen.height // 4 - 5),
        Print(screen,
              Rainbow(screen, FigletText("K y l e ' s   M i n i   G a m e s !", font="big")),
              screen.height // 2 - 3,
              start_frame=7),
        Cycle(screen,
              SpeechBubble("Press space bar to play"),
              screen.height - 3,
              #transparent=False,
              start_frame=10)
    ]
    scenes.append(Scene(effects, 0, clear=True))
 
    # Next scene: just dissolve the title.
    effects = [
        ShootScreen(screen, screen.width // 2, screen.height // 2, 100),
    ]
    scenes.append(Scene(effects, 10, clear=False))

    screen.play(scenes, stop_on_resize=True)

if __name__ == "__main__":
    while True:
        try:
            Screen.wrapper(demo)
        except ResizeScreenError:
            pass

Answer 1

这取决于你想实现什么.

如果只想播放一次所有场景，只需在调用play()时指定repeat=False即可。当您按空格键时，这将从第一个Scene开始移动，并在第二个Scene上显示10帧后自动停止(由您的代码指定)。

但是，如果您希望确保在第二个Scene中清除屏幕时空格键不起作用，则需要创建一个自定义Scene来捕获并忽略空格键。ray_casting.py演示中的GameController类展示了如何做到这一点。