python – pygame sprite的列表丢失了它的第一个元素,并获得了最

我有一个函数加载一个精灵表,找到一个精灵块,然后将每个精灵放入一个列表.在将精灵附加到列表中之前,它会将其blit到屏幕上.一旦它完成加载精灵,它将遍历列表,随着它的进行blitting每个精灵.两组blits应该是相同的,但是从列表中删除第一个sprite,并且重复最后一个sprite.两组blits看起来像这样：

每个精灵按照它附加到列表的顺序进行blitting,从左到右,从上到下,所以第一个精灵是左上角,最后一个是右下角.

这是加载精灵的函数：

def assembleSprites(name,screen):
    """Given a character name,this function will return a list of all that
    character's sprites.  This is used to populate the global variable spriteSets"""
    spriteSize = (35,35)
    spritesheet = pygame.image.load("./images/patchconsprites.png")
    sprites = []
    start = charCoords[name]
    char = list(start)
    image = pygame.Surface((35,35))

    # load each sprite and blit them as they're added to the list
    for y in range(5):
        char[0] = start[0]
        for x in range(9):
            rect = (char[0],char[1],char[0]+spriteSize[0],char[1]+spriteSize[1])
            image.blit(spritesheet,(0,0),rect)
            image = image.convert()
            colorkey = image.get_at((0,0))
            image.set_colorkey(colorkey,RLEACCEL)
            screen.blit(image,(x*40,y*40))
            pygame.display.update()
            sprites.append(image)
            char[0] += spriteSize[0]+2
        char[1] += spriteSize[1]+2

    # check that the list was constructed correctly
    count = 0
    for y in range(6,11):
        for x in range(9):
            screen.blit(sprites[count],y*40))
            count += 1
    pygame.display.update()
    return sprites

有人看到我如何搞砸列表？

image.blit(spritesheet,rect)