如何获得40 FPS的地形生成器性能 [英] How Can I Improve My Terrain Generator Performance I Get 40 FPS

问题描述

我制作了一个地形生成器，我希望游戏能全屏显示，但是当我更改块大小时，FPS会减小.我不知道如何解决此问题.

I Made a Terrain Generator I want My Game To Be At FullScreen, But When I Change The Block Size The FPS Decrease. I Don't Have Any Idea How to Fix This Problem.

这是我的代码:

pygame.init()

scsizeX = 600
scsizeY = 400
screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)
scX, scY = screen.get_size()
clock = pygame.time.Clock ()

plrX = 300
plrY = 200
speed = 3
plrOri = "Right"
cameraX = 0
cameraY = 0
genSize = 100
gen = []
fonts = [pygame.font.SysFont("Arial", 24)]
FPS = 1024
playerSize = 36
blockSize = 64
plrMoved = False

background_colour = (255,255,255)
clo = (255,255,0)

pygame.mouse.set_visible(False)

playerimg = pygame.image.load('assets/player.png') 
mouseimg = pygame.image.load('assets/mouse.png') 
grassimg = pygame.image.load('assets/grass.png')
stoneimg = pygame.image.load('assets/stone.png')

grassimg = pygame.transform.scale(grassimg, (blockSize, blockSize))
stoneimg = pygame.transform.scale(stoneimg, (blockSize, blockSize))

mouseimg = pygame.transform.scale(mouseimg, (48, 48))
playerimg = pygame.transform.scale(playerimg, (playerSize * 2, playerSize * 2))

screen.fill(background_colour)

player = screen.blit(playerimg, (300, 200))
mouse = screen.blit(mouseimg, (300, 200))

for x in range(genSize):
    for y in range(genSize):
        g = random.randint(1,2)
        gen.append(g)

def block(tp, posX, posY):
    if tp == "grass":
        return screen.blit(grassimg, (posX - cameraX - playerSize, posY - cameraY - playerSize))
    elif tp == "stone":
        return screen.blit(stoneimg, (posX - cameraX - playerSize, posY - cameraY - playerSize))

def render(fnt, what, color, where):
    "Renders the fonts as passed from display_fps"
    text_to_show = fnt.render(what, 0, pygame.Color(color))
    screen.blit(text_to_show, where)

game = True
while game:

    screen.fill(background_colour)
    plrMoved = False

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game = False
        if event.type == pygame.MOUSEBUTTONDOWN:
            mouseimg = pygame.transform.scale(mouseimg, (44, 44))
        if event.type == pygame.MOUSEBUTTONUP:
            mouseimg = pygame.image.load('assets/mouse.png') 
            mouseimg = pygame.transform.scale(mouseimg, (48, 48))

    keys = pygame.key.get_pressed()

    if keys[pygame.K_w]:
        plrY -= speed
        plrMoved = True
    if keys[pygame.K_a]:
        plrX -= speed
        plrMoved = True
        plrOri = "Left"
    if keys[pygame.K_s]:
        plrY += speed
        plrMoved = True
    if keys[pygame.K_d]:
        plrX += speed
        plrMoved = True
        plrOri = "Right"

    cameraX = plrX - (scsizeX / 2)
    cameraY = plrY - (scsizeY / 2)

    #player = screen.blit(playerimg, (plrX, plrY))

    #if plrMoved:
    for x in range(int(scX / blockSize) + 2):
        for y in range(int(scY / blockSize) + 3):
            g = gen[(floor(cameraX / blockSize) + x) + (floor(cameraY / blockSize) + y)]

            if g == 1:
                block("grass", (floor(cameraX / blockSize) + x) * blockSize, (floor(cameraY / blockSize) + y) * blockSize)
            elif g == 2:
                block("stone", (floor(cameraX / blockSize) + x) * blockSize, (floor(cameraY / blockSize) + y) * blockSize)

    p_pos = plrX - cameraX - playerSize, plrY - cameraY - playerSize, 
    if plrOri == "Right":
        player = screen.blit(playerimg, p_pos)
    elif plrOri == "Left":
        player = screen.blit(pygame.transform.flip(playerimg, True, False), p_pos)






    Mx, My = pygame.mouse.get_pos()

    msrct = mouseimg.get_rect()
    msrct = msrct.move((Mx, My))
    mouse = screen.blit(mouseimg, msrct)

    render(
        fonts[0],
        what=str(int(clock.get_fps())),
        color="white",
        where=(0, 0))

    pygame.display.flip()
    clock.tick(FPS)

pygame.quit()

我试图仅在播放器移动但我的FPS仍然很低并且停止移动时更新地形.

I Tried To Only Update The Terrain When Player Is Moving But My FPS is Still Low And When I stop Moving Player Screen Gets White.

谢谢您的阅读.

推荐答案

确保背景表面与显示表面具有相同的格式.使用 convert() (或 convert_alpha() )来创建具有相同像素格式的 Surface .当背景为背景时，当显示器上的背景为 blit 时，这可以提高性能，因为格式兼容并且 blit 不需要执行隐式转换:

Ensure that the background Surface has the same format as the display Surface. Use convert() (or convert_alpha()) to create a Surface that has the same pixel format. This improves performance when the background is, when the background is blit on the display, because the formats are compatible and blit does not need to perform an implicit transformation:

playerimg = pygame.image.load('assets/player.png').convert_alpha() 
mouseimg = pygame.image.load('assets/mouse.png').convert_alpha() 
grassimg = pygame.image.load('assets/grass.png').convert_alpha()
stoneimg = pygame.image.load('assets/stone.png').convert_alpha()

---

您可以通过支付内存使用量来购买性能.使用以下命令创建一个大型 Surface 完整的地图:

---

You can buy performance by paying with memory usage. Create a large Surface with the complete map:

game_map = pygame.Surface((genSize * 64, genSize*64))
for x in range(genSize):
    for y in range(genSize):
        g = random.randint(1,2)
        if g == 1:
            game_map.blit(grassimg, (x * 64, y * 64))
        elif g == 2:
            game_map.blit(stoneimg, (x * 64, y * 64))

blit 屏幕上当前可见的区域:

blit the area which is currently visible on the screen:

while game:
    # [...]

    map_sub_rect = screen.get_rect(topleft = (cameraX, cameraY))
    screen.blit(game_map, (0, 0), map_sub_rect)

    # [...]

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