python - 如何将图像blit到pygame中与矩形大小相同的表面

Question

我正在用 pygame 制作一个游戏，每个 Sprite 都有一个矩形和一个图像。我如何将此图像传输到表面，使其与矩形大小相同？

pygame.init()
screen = pygame.display.set_mode((720, 480))
pygame.display.set_caption('My game')

background = pygame.Surface(screen.get_size())
background = background.convert()
background.fill((250, 250, 250))

charRect = pygame.Rect((0,0),(10, 10))
print os.path.abspath("airbender.png")
charImage = pygame.image.load(os.path.abspath("ImageName.png"))
charImage = charImage.convert()

background.blit(charImage, charRect) #This just makes it in the same location
                                     #and prints it the same size as the image

screen.blit(background,(0,0))
pygame.display.flip()

为什么最后一个 pygame.display.flip() 是必要的？

Answer 1

你应该这样做:

pygame.init()
screen = pygame.display.set_mode((720, 480))
pygame.display.set_caption('My game')

background = pygame.Surface(screen.get_size())
background = background.convert()
background.fill((250, 250, 250))

charRect = pygame.Rect((0,0),(10, 10))
print os.path.abspath("airbender.png")
charImage = pygame.image.load(os.path.abspath("ImageName.png"))
charImage = pygame.transform.scale(charImage, charRect.size)
charImage = charImage.convert()

background.blit(charImage, charRect) #This just makes it in the same location
                                     #and prints it the same size as the image

screen.blit(background,(0,0))
pygame.display.flip()