为什么我的 pygame 游戏在显示矩形时丢帧？

Question

我正在尝试编写一个简单的游戏，该游戏有一个玩家对象和一个使用循环创建的地板。我不确定为什么它丢帧这么快。我有时钟滴答 60 fps 但很快下降到 15 fps。提前致谢！

main.py

black = (0, 0, 0)
blue = (50, 60, 200)
white = (255, 255, 255)
font = pygame.font.Font(None, 30)

window = pygame.display.set_mode((800, 600))
pygame.display.set_caption("Platformer")

gravity = -0.5

player = Player(400, 0)

level1 = [
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
    [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1]


]

    for y in range(0, len(level1)):
        for x in range(0, len(level1[y])):
            if level1[y][x] == 1:
                blockList.append(Block(x*32, y*32))

    window.fill(blue)

    for block in blockList:
        block.render(window)

    player.x += moveX

    player.update(gravity, blockList)
    player.render(window)

    clock.tick(60)

        for x in range(0, len(level1[y])):
            if level1[y][x] == 1:
                blockList.append(Block(x*32, y*32))``` Im pretty sure thats where the error is...

Answer 1

这里有一个很好的学习点。优化代码的第一步是从循环中去除不必要的数学运算。正如评论中所建议的那样，如果你是运行每个帧计算中的双循环，它可能会减慢你的速度。也许其他事情也是如此。

让我们假设您的 "level 1" 块没有变化 frame-to-frame。因此，我们可以在开始循环之前 计算黑名单。

# make blocklist level1= [[0,0, ... , 0], ... [1,1, ... , 1]] blocklist = [] for y ... for x ... blocklist.append(...) # now start your frame loop while True: window.fill() for block in blocklist: ... clock.tick(60)

为什么我的 pygame 游戏在显示矩形时丢帧？

Why is my pygame game losing frames when displaying rects?

python

macos

pygame

frame-rate