Pygame 不会 blit 图像列表

Question

我开始在 python 中使用 pygame 构建一个简单的 window 来遍历图像列表并将它们 blit。

import pygame

pygame.init()

Window = pygame.display.set_mode((800, 600))
bg = pygame.image.load("/Users/luke.redwine/Documents/Python/PyGame/Examples/pygame lesson spaceinvaders/space.jpg")
clock = pygame.time.Clock()

animateNeutral = [pygame.image.load("/Users/luke.redwine/Documents/Python/PyGame/Space Shooter Game/Plasma T Neutral %s.png"% frame)for frame in range (1,3)] 
animateFiring = [pygame.image.load("/Users/luke.redwine/Documents/Python/PyGame/Space Shooter Game/plasma T fire %s.png"% frame)for frame in range (1,7)]

running = True
while running:
    events = pygame.event.get()
    keys = pygame.key.get_pressed()
    for event in events:             
        if event.type==pygame.QUIT or keys[pygame.K_ESCAPE]:
            pygame.quit()

    Window.blit(bg, (0,0))
    clock.tick(10)
    Window.blit(animateNeutral)
    Window.blit(animateFiring)
pygame.quit()

我试图快速制作它以便我可以看到它的动画效果，但它抛出了这个错误：

 Traceback (most recent call last):
  File "/Users/luke.redwine/Documents/Python/PyGame/Space Shooter Game/space rpg.py", line 22, in <module>
    Window.blit(animateNeutral)
TypeError: argument 1 must be pygame.Surface, not list

Answer 1

https://www.pygame.org/docs/ref/surface.html?highlight=blit#pygame.Surface.blit

请务必查看上面的 link 部分文档，但可能很难找到答案

回答如果您尝试按序列进行 blit，请尝试使用 blits

对于

animateNeutral = [pygame.image.load("/Users/luke.redwine/Documents/Python/PyGame/Space Shooter Game/Plasma T Neutral %s.png"% frame)for frame in range (1,3)] 
animateFiring = [pygame.image.load("/Users/luke.redwine/Documents/Python/PyGame/Space Shooter Game/plasma T fire %s.png"% frame)for frame in range (1,7)]

这是一个图像列表，blits() 需要一系列表面（在您的情况下是图像）如果你打算使用很多精灵，你应该考虑转换表面，如果它们有透明度（alpha）使用 convert_alpha()

Answer 2

blit 函数需要表面参数。

您可以使用内置的 itertools.cycle 来创建一个将永远循环显示图像的生成器。

下面是一些基于您的示例的未经测试的代码：

import itertools
import pygame
pygame.init()

Window = pygame.display.set_mode((800, 600))
bg = pygame.image.load("/Users/luke.redwine/Documents/Python/PyGame/Examples/pygame lesson spaceinvaders/space.jpg")
clock = pygame.time.Clock()

animateNeutral = [pygame.image.load("/Users/luke.redwine/Documents/Python/PyGame/Space Shooter Game/Plasma T Neutral %s.png"% frame)for frame in range (1,3)] 
animateFiring = [pygame.image.load("/Users/luke.redwine/Documents/Python/PyGame/Space Shooter Game/plasma T fire %s.png"% frame)for frame in range (1,7)]

neutral_animations = itertools.cycle(animateNeutral)
firing_animations = itertools.cycle(animateFiring)

neutral_dest = (50, 50)
firing_dest = (200, 50)

running = True
while running:
    events = pygame.event.get()
    keys = pygame.key.get_pressed()
    for event in events:             
        if event.type==pygame.QUIT or keys[pygame.K_ESCAPE]:
            pygame.quit()

    Window.blit(bg, (0,0))
    clock.tick(10)
    Window.blit(next(neutral_animations), neutral_dest)
    Window.blit(next(firing_animations), firing_dest)
pygame.quit()

或者，您可以手动跟踪当前动画帧的索引，每帧递增并在大于列表长度时重置一次。

编辑：根据 surface.blit()

的要求添加目的地

Pygame 不会 blit 图像列表

Pygame will not blit lists of images

python

pygame

python-3.x

pygame-surface