Pygame 在显示文本时冻结

Question

我正在创建一个游戏的基础，当一行文本在屏幕上移到很远时，它将具有滚动文本和文本换行。

一切正常（到目前为止），但在使用我的default_display_text 功能时，pygame 停止响应。当我使用 default_display_text 函数并将问候语作为变量时，它总是在“打破，打一些花哨的词”部分停止。

我已经能够用谷歌解决我所有的其他问题，但这个问题让我真的卡住了！我很乐意提供任何其他信息，希望您能在 cmets 的帮助下理解我的代码的作用。

import pygame, math, pygame.display, time, pygame.mouse
from pygame.locals import *

pygame.init()
pygame.font.init()

infoObject = pygame.display.Info()
window_height = infoObject.current_w
window_width = infoObject.current_h
gameDisplay = pygame.display.set_mode((window_height, window_width), pygame.RESIZABLE)

pygame.display.set_caption('Aperture_Game')
pygame.mouse.set_visible(False)

c_font = 'C:\Windows\Fonts\Courier Regular.fon'

background = (10,10,10)
black = (0,0,0)
white = (255,255,255)
text_color =      (39, 167, 216)

clock = pygame.time.Clock()
loop = True

default_font_size = 26

greeting = "Greetings! My name is Cave Johnson, CEO of Aperture Science. Our motto here is \"If it ain't broke, slap some fancy words on it and sell it for profit!\""

'''
def message_display(text,x,y,font,color,size):
    fontObj = pygame.font.SysFont(font, size)
    label = fontObj.render(text, 1, color)
    gameDisplay.blit(label, (x,y))
'''

def default_display_text(string,x,y):
    text = ''
    #a tracks i's value.
    a = 0
    #newline helps determine when to wrap the text.
    newline = 0
    #ref is a reference for when to wrap the text (I only want to wrap text after a space so the wrapping doesn't split words in half).
    ref = ' '
    fontObj = pygame.font.SysFont(c_font, default_font_size)
    text_surface = fontObj.render(text, True, text_color)
    text_rect = text_surface.get_rect()
    #this for loop is what displays the text one character at a time and wraps it.
    for i in range(len(string)):
        gameDisplay.fill(background)

        if newline == 0:
            gameDisplay.blit(text_surface, (x,y))
        #if the text goes to far to the right and a word is complete, I want to start a new line.
        if pygame.Surface.get_width(text_surface) > 1000:
            #makes sure that its not in the middle of a word.
            if string[a] == ref:
                #making sure its not a double space
                if string[a+1] != ref:
                    newline = 1
                    text = text[a:]
                else:
                    newline = 0

        #adds another character of the string to the text variable
        if newline == 0:
            text += string[i]
        # if newline is not 0 then the start of the text is shifted down and all the previous text is deleted.
        else:
            y += 25
            newline = 0
            text += string[a:a+1]
            text = text[a:]
            a = 0

        a += 1
        pygame.display.update()
        pygame.time.wait(50)


#Just your average main loop
def main():
    loop = True
    while loop:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                loop = False
            if event.type == KEYDOWN:
                if event.key == K_ESCAPE:
                    loop = False


        #add controls here later

        gameDisplay.fill(background)

        default_display_text(greeting, 50, 50)

        pygame.display.update()
        clock.tick(60)



main()

pygame.quit()
quit()

Answer 1

Python Debugger 是您的朋友。

使用语法启动程序

python -m pdb <scriptfile>

在 cli 中继续输入“c”

一旦您的程序似乎冻结，请按 CTRL+C 然后，您应该能够使用调试器分析程序的当前状态。例如在 cli 中输入“where”，您应该会看到当前的调用堆栈和行号。