pygame.display.update() 错误:视频系统未初始化 [英] pygame.display.update() error: video system not initialized

问题描述

import pygame
from pygame.locals import*

def main():
   global FPSCLOCK, DISPLAYSURF, BASICFONT, PLAY_SURF, PLAY_RECT, NEW_SURF, NEW_RECT, SOLVE_SURF, SOLVE_RECT 


black = ( 0, 0, 0)
Aqua = ( 0, 255, 255)
Blue = ( 0, 0, 255)
Fuchsia = (255, 0, 255)
Gray = (128, 128, 128)
Green =( 0, 128, 0)
Lime =( 0, 255, 0)
Maroon= (128, 0, 0)
NavyBlue = ( 0, 0, 128)
Olive =(128, 128, 0)
Purple =(128, 0, 128)
Red= (255, 0, 0)
Silver =(192, 192, 192)
Teal =( 0, 128, 128)
White =(255, 255, 255)
Yellow =(255, 255, 0)
ButtonColor= black
textcolor= Red
BASICFONTSIZE = 20

pygame.init()

def makeText(text, color, bgcolor, top, left):
    textSurf = BASICFONT.render(text, True, color, bgcolor)
    textRect = textSurf.get_rect()
    textRect.topleft = (top, left)
    return (textSurf, textRect)
FPSCLOCK = pygame.time.Clock()
BASICFONT = pygame.font.Font('freesansbold.ttf', BASICFONTSIZE)



title_screen= pygame.image.load("Journey to Vallhalla.png")
DISPLAYSURF = pygame.display.set_mode((1300, 690))

PLAY_SURF , PLAY_RECT = makeText("Click to Play", textcolor, ButtonColor, 600,400)

title=DISPLAYSURF.blit(title_screen, (0,0 ))
playb=DISPLAYSURF.blit(PLAY_SURF, PLAY_RECT)
player=pygame.image.load("player.jpg")
playerx=650
playery=520
movex,movey=0,0
while True: # main game loop
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
        if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1 and PLAY_SURF.get_rect(topleft=(600, 400)).collidepoint(pygame.mouse.get_pos()):
            player1= DISPLAYSURF.blit(player,(650,520))
            DISPLAYSURF.fill(Gray)
        if event.type == KEYDOWN:
            if event.key==K_LEFT:
                movex = -10
            elif event.key==K_RIGHT:
                movex=+10
            elif event.key==K_DOWN:
                movey=+10
            elif event.key==K_SPACE:
                movey=-30

        if event.type==KEYUP:
            if event.key==K_LEFT:
                movex += 10
            elif event.key==K_RIGHT:
                movex=0
            elif event.key==K_DOWN:
                movey=0
            elif event.key==K_SPACE:
                movey=0


    movex+=playerx
    movey+=playery
    pygame.display.update()

我收到此错误:

回溯(最近一次调用最后一次):pygame.display.update()错误:视频系统未初始化我是一个 pygame 菜鸟，不知道如何解决这个问题，请帮忙！

Traceback (most recent call last): pygame.display.update() error: video system not initialized I am a pygame noob and do not know how to fix this please help!

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推荐答案

我假设您的意思是退出游戏时会发生此错误.pygame.quit() 取消初始化所有 pygame 模块，但 while 循环仍然继续运行，当 pygame.display.update() 被调用时，视频系统不再初始化并导致错误.要解决该问题，请执行以下操作:

I assume you mean this error occurs when you quit the game. pygame.quit() uninitializes all pygame modules, but the while loop still keeps running and when pygame.display.update() is called, the video system is not initialized anymore and the error is caused. To fix that problem do something like this:

running = True

while running:
    for event in pygame.event.get():
        if event.type == QUIT:
            running = False

    # Game code ...

# After the while loop is done, uninitialize pygame and exit the program.
pygame.quit()
sys.exit()  # import sys at the top of the module.

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