blit 错误的无效目标位置 [英] Invalid destination position for blit error

问题描述

我收到了这个错误.这是完整的回溯.

<块引用>

回溯(最近一次调用最后一次):文件C:/Users/hobin/PycharmProjects/codeitPython/Snake_game.py"，第 103 行，在 <module> 中.蛇游戏()文件C:/Users/hobin/PycharmProjects/codeitPython/Snake_game.py"，第 52 行，在蛇游戏中dis.blit(value, round(display_width/3), round(display_height/5))类型错误:blit 的目标位置无效

这是与错误相关的代码

虽然不是 game_over:而 game_end == True:#用于显示分数分数 = Length_of_snake -1score_font = pygame.font.SysFont("comicsansms", 35)value = score_font.render("你的分数:" + str(score), True, greencolor)dis.blit(value, round(display_width/3), round(display_height/5))pygame.display.update()对于 pygame.event.get() 中的事件:如果 event.type == pygame.QUIT:game_over = True # 游戏窗口仍然打开game_end = False # 游戏已经结束

我不知道……我该怎么办??

解决方案

pygame.Surfac.blit 是一对坐标.包含 2 个组件的元组或包含 2 个元素的列表:

dis.blit(value, round(display_width/3), round(display_height/5))

dis.blit(value, ( round(display_width/3), round(display_height/5) ) )

为了完整起见，必须提到参数也可以是矩形.包含 4 个组件(左、上、宽、高)的元组.

I got this error. This is the full traceback.

Traceback (most recent call last):
File "C:/Users/hobin/PycharmProjects/codeitPython/Snake_game.py", line 103, in <module>
snakegame()
File "C:/Users/hobin/PycharmProjects/codeitPython/Snake_game.py", line 52, in snakegame
dis.blit(value, round(display_width / 3), round(display_height / 5))
TypeError: invalid destination position for blit

Here's the code that related the error

while not game_over:
    while game_end == True:
        #For displaying the score
        score = Length_of_snake -1
        score_font = pygame.font.SysFont("comicsansms", 35)
        value = score_font.render("Your Score: " + str(score), True, greencolor)
        dis.blit(value, round(display_width / 3), round(display_height / 5))
        pygame.display.update()
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_over = True # The game window is still open
                game_end = False # game has been ended

I don't have any clue... what should I do??

解决方案

The 2nd argument (dest) of pygame.Surfac.blit has be pair of coordinates. Either a tuple with 2 components or a list with 2 elements:

dis.blit(value, round(display_width / 3), round(display_height / 5))

dis.blit(value, ( round(display_width / 3), round(display_height / 5) ) )

For the sake of completeness it has to be mentioned that the argument can also be a rectangle. A tuple with the 4 components (left, top, width, height).

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