困惑为什么PyGame显示屏为黑屏

  • Z时代
  • 2024-01-10
  • 分类：问答

因此，在决定问这个问题之前，我做了一点研究，以了解问题所在，并发现了这个问题：代码仅在Pygame窗口中产生黑屏，但这并不是全部有用，因为我没有遇到与此相同的问题人。我肯定知道我的PyGame没有过时或类似的事情，因为我的代码在以前的版本中可以正常工作。

每次我运行代码时，最终都会出现黑屏。

这是我的代码（有点抱歉）：

import pygame
import sys
from pygame.locals import *
white = (255,255,255)
black = (0,0,0)
objs = []
MAIN_BUTTON = 1
class Pane():
    def __init__(self):
        self.Screen = pygame.display.set_mode((1000,600), 0, 32)
        self.font = pygame.font.SysFont('Arial', 25)
    def drawPane(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
    def drawPane1(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
    def drawPane2(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
    def drawPane3(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
    def drawPane4(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
    def drawPane5(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
    def drawPane6(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
    def drawPane7(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
    def drawPane8(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
    def drawPane9(self, textToDisplay):
        self.Screen.blit(self.font.render(textToDisplay, True, (black)), (250, 115))
        pygame.draw.rect(self.Screen, (black), (175, 75, 200, 100), 2)
class Screen():
    def __init__(self):
        pygame.init()
        self.font = pygame.font.SysFont('Arial', 25)
        pygame.display.set_caption('Box Test')
        self.screen = pygame.display.set_mode((1000,600), 0, 32)
        self.screen.fill((white))
        pygame.display.update()
        numberOfPanes = 0
        self.NoOfPanes = numberOfPanes
    def addPane(self, textToDisplay):
        myPane = Pane()
        myPane.drawPane(textToDisplay)
    def clearScreen(self):
        self.screen = pygame.display.set_mode((600,400), 0, 32)
        self.screen.fill((white))
        pygame.display.update()
    def mousePosition(self):
        global clickPos
        global releasePos
        for event in pygame.event.get():
            if event.type == MAIN_BUTTON:
                self.Pos = pygame.mouse.get_pos()
                return MAIN_BUTTON
            else:
                return False
if __name__ == '__main__':
    Pan3 = Screen()
    Pan3.addPane("hello")
    Pan3.mousePosition()
    pygame.display.update()
    while True:
        ev = pygame.event.get()
        for event in ev:
            if event.type == pygame.MOUSEBUTTONUP:
                posx,posy = pygame.mouse.get_pos()
                print(posx)
                print(posy)
        for event in pygame.event.get():        
            if event.type == pygame.QUIT:
                pygame.quit(); sys.exit();

所以我基本上是试图从中显示窗格（现在是一个）**class Pane()**，**class

Screen()**但是就像我在运行代码之前所说的那样，我得到了黑屏。但是由于某些原因，鼠标坐标跟踪器仍然可以工作。任何帮助是极大的赞赏。

回答：

问题是您的代码组织。

你有树时间pygame.display.set_mode()。每次您呼叫pygame.display.set_mode()销毁先前的设备时screen，创建screen新屏幕和新屏幕始终为黑色。

您应该screen只创建一次，然后将其作为参数发送到其他类。

def addPane(self, textToDisplay):
    myPane = Pane(self.screen) # send screen to Pane
    myPane.drawPane(textToDisplay)
# ...
class Pane():
    def __init__(self, screen):
        self.Screen = screen # get screen

并pygame.display.set_mode()从clear()功能中删除-使用一个屏幕显示程序的末尾。

现在，我可以看到带有“你好”的窗格

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