Pygame没有响应变量更新

Question

我试图建立一个程序，将Pygame表面内的每个像素更改为随机颜色。

对于一个固定的和恒定的表面大小（例如，1300 x 700）这个工程和整个表面都是随机的颜色填充，但我试图调整pygame的pygame.RESIZABLE功能的表面（通过更新程序工作的计算出的X和Y值），每当表面被调整大小时，Pygame表面只会为程序初始表面宽度和高度中的像素输出随机颜色的像素（在此情况下为1300 x 700 ），而其余的表面是黑色的（即我设置的背景色），即使当我将响应屏幕高度和宽度的变量（并用于迭代所有像素）打印到程序日志中时，他们按预期更新。

我不明白表面如何不响应thees更新变量，我不知道如何解决这个问题。

任何帮助，非常感谢和任何关于我的代码的问题，欢迎，谢谢！

import pygame 
import random 
pygame.init() #initiates pygame 

Comp_X = 1300 
Comp_Y = 700 

Window = pygame.display.set_mode((Comp_X, Comp_Y), pygame.RESIZABLE) #defines the window size (the varible doesnt have to be called window) 
pygame.display.set_caption("Random Colours") #sets the title of the window 
clock = pygame.time.Clock() #sets the refresh rate of the program 



def GameLoop():  
    global Comp_X #computed pixles for the X axis 
    global Comp_Y #computed pixles for the Y axis 
    Comp_Tot = Comp_X * Comp_Y #total pixles on the screen 
    print("initial computed total pixles = " + str(Comp_Tot)) 

    #setting x and y position 
    x = 0 
    y = 0 


    GameExit = False #sets the defult value of this varible to true 

    while not GameExit: #this is effectivly a "while true" loop, unless the varible "crashed" is set to false 

     for event in pygame.event.get(): #this for loop will listen for events 
      print(event.type) 
      print("X = " + str(Comp_X)) 
      print("Y = " + str(Comp_Y)) 

      if event.type == pygame.QUIT: # this if statement checks to see if the X in the top right of the window was pressed 
       GameExit = True # this will break the while loop if the condition is met 
       print("X = " + str(Comp_X)) 
       print("Y = " + str(Comp_Y)) 

      if event.type == 16: #event type 16 is the window resizing event 
       Comp_X = event.dict['size'][0] 
       Comp_Y = event.dict['size'][1] 
       Comp_Tot = Comp_X * Comp_Y 
       print("current computed total pixles = " + str(Comp_Tot)) 

      #Creating the colours 
      if event.type == pygame.KEYDOWN: 

       if event.key == pygame.K_RETURN: 

        for pixle in range (0, Comp_Tot): 
         if x == Comp_X: 
          print("Computed X = " + str(Comp_X)) 
          print("Computed Y = " + str(Comp_Y)) 
          x = 0 
          y += 1 
         pygame.draw.rect(Window, (random.randint(0,255), random.randint(0,255), random.randint(0,255)), [x, y, 2, 2])# draws a red square 
         x += 1 


     #Drawing the frame 
     pygame.display.update() #This updates the frame 
     clock.tick(60) # this defines the FPS 



GameLoop() 
pygame.quit() # this will close the window if the "while GameLoop" loop stops running 
quit() 

Using defult height and width of 1300 x 700

Resizing surface to 1457 x 992 - not all of the surface is filled!

Answer 1

导致错误的代码实际上有两个问题。第一不具有如已经提到的if event.type == 16:内部的

Window = pygame.display.set_mode((Comp_X, Comp_Y), pygame.RESIZABLE)

线。

另一个问题非常小，但如果在填充屏幕后重新调整大小，则会导致其无法正常工作，也就是说，填充屏幕后永远不会将x或y的值重置为0。代码

固定区间：

  if event.type == pygame.VIDEORESIZE: 
       Comp_X = event.w 
       Comp_Y = event.h 
       Comp_Tot = Comp_X * Comp_Y 
       print("current computed total pixles = " + str(Comp_Tot)) 
       Window = pygame.display.set_mode((Comp_X, Comp_Y), pygame.RESIZABLE) 

      #Creating the colours 
      if event.type == pygame.KEYDOWN: 
       if event.key == pygame.K_RETURN: 
        for pixle in range (0, Comp_Tot): 
         if x == Comp_X: 
          #print("Computed X = " + str(Comp_X)) 
          #print("Computed Y = " + str(Comp_Y)) 
          x = 0 
          y += 1 
         pygame.draw.rect(Window, (random.randint(0,255), random.randint(0,255), random.randint(0,255)), [x, y, 2, 2])# draws a red square 
         x += 1 
        x = 0 
        y = 0 

我也改变event.type == 16到event.type == pygame.VIDEORESIZE，因为它是更具可读性。

Answer 2

当窗口调整大小事件触发，则需要再次调用pygame.display.set_mode((w, h))来分配大小的新表面。否则，你仍然在写入原始的1300x700 Surface实例。