无法使pygame.Surface.get_at（）正常工作

问题描述

我正在尝试使用pygame检索在显示器上绘制的颜色，但似乎无法使用它。我拿出了一些无关的代码以便于阅读，但这就是我的意思。

I am trying to retrieve the color I have drawn onto my display using pygame, but I can't seem to get it to work. I took out some irrelevant code for easier reading, but here is what I have.

import pygame
import sys
from pygame.locals import *

pygame.init()

blue = (0,0,255)

#sets up screen
setDisplay = pygame.display.set_mode((400,400))
pygame.display.set_caption('Connections')

pygame.draw.circle(setDisplay, blue, (20,20), 10, 10)

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

    print pygame.setDisplay.get_at((20,20))

每当我运行此代码时，都会出现以下错误：

Whenever I run this code, I get the following error:

TypeError: descriptor 'get_at' requires a 'pygame.Surface' object but received a 'tuple'

推荐答案

setDisplay 是您创建的变量，而不是 p上的属性ygame 。仅尝试 setDisplay.get_at（（20,20））。我不确定为什么甚至要使用描述符，看来您应该在 pygame.setDisplay AttributeError $ c>甚至没有调用 get_at 描述符，但是无论如何，您应该在 setDisplay 上调用它，不能取消 pygame 的属性。

setDisplayis a variable you created, not an attribute on pygame. Try just setDisplay.get_at((20,20)). I'm not sure why you are even getting at the descriptor, it seems like you should be getting an AttributeError on pygame.setDisplay before even calling the get_at descriptor, but in any case, you should be calling it against your setDisplay, not off an attribute of pygame.

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