Question

然而,我要在皮亚加(此处为“P”性质)的非试金字节区确定,在这种区域,它会严格限制,从而吸引另一个物体。

是否有任何选择?

非常感谢

Answer 1

让我看一下,我是否正确理解你的问题:你想把一个形象放在表面上,而通过一个只允许来源的某些颜料实际上在表面上结束的面面面面面面面面面面面面面面面上去的面面面面面面面面面面上?

I had this precise problem and at first I thought it would only be doable through PIL. However after some reading and experimentation, it turns out that it can actually be done with the help of pygame s rather obscure "special flags". Below is a function which hopefully does what you want.

def blit_mask(source, dest, destpos, mask, maskrect):
    """
    Blit an source image to the dest surface, at destpos, with a mask, using
    only the maskrect part of the mask.
    """
    tmp = source.copy()
    tmp.blit(mask, maskrect.topleft, maskrect, special_flags=pygame.BLEND_RGBA_MULT)
    dest.blit(tmp, destpos, dest.get_rect().clip(maskrect))

面罩应该是白色的,你们想要做到透明,否则就会黑白。

Answer 2

这里是全面的法典,是关于“我们的世界!:D”案文的第2条。欢乐。

import pygame, sys, time
from pygame.constants import QUIT
pygame.init()

windowSurface = pygame.display.set_mode((800, 600), 0, 32)
pygame.display.set_caption( Hello World! )

WHITE = (255, 255, 255)
RED = (255, 0, 0)
GREEN = (0, 255, 0)

basicFont = pygame.font.SysFont("Times New Roman", 100)

text = basicFont.render( Hello world! :D , True, WHITE)

def blit_mask(source, dest, destpos, mask, maskrect):

        """
        Blit an source image to the dest surface, at destpos, with a mask, using
        only the maskrect part of the mask.
        """
        windowSurface.fill(WHITE)
        tmp = source.copy()

        tmp.blit(mask, destpos, maskrect, special_flags=pygame.BLEND_RGBA_MULT)  # mask 1 green


        tmp.blit(red, (destpos[0]+100,0), maskrect, special_flags=pygame.BLEND_RGBA_MULT)  # mask 2 red

        dest.blit(tmp, (0,0), dest.get_rect().clip(maskrect))

        pygame.display.update()

red = pygame.Surface((200,100))
red.fill(RED)

green = pygame.Surface((100,100),0)
green.fill(GREEN)

for a in range(700):
    blit_mask(text, windowSurface , (a,0), green, (0,0,800,600))

while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()

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