pygame闪烁

Question

我写了一个小程序来绘制模式一个循环通过不同的颜色以及一个类，以调节帧速率。出于某种原因，每当我运行它时都会随机闪烁，我不知道为什么。这非常简单，所以我怀疑它与屏幕更新足够快有关。我将不胜感激任何建议。

import pygame, time, random 

w, h = 640, 480 
screen = pygame.display.set_mode((w, h)) 
running = 1 
inc = 20 
m = [1, 1, 1] 
c = [random.randint(0,255), random.randint(0,255), random.randint(0,255)] 


class FrameRate(): 
    def __init__(self, rate = 60): 
     self.frame_rate = rate 
     self.refresh_time = 1.0/self.frame_rate 
     self.cur_time = time.time() 
     self.prev_time = time.time() 
     self.elapsed_time = 0 

    def update(self): 
     temp = self.cur_time 
     self.cur_time = time.time() 
     self.elapsed_time = self.cur_time - self.prev_time 
     self.prev_time = temp 

    def regulate_frame_rate(self): 
     if self.elapsed_time < self.refresh_time: 
      time.sleep(self.refresh_time - self.elapsed_time) 
fr = FrameRate() 
pygame.init() 

while running: 

    fr.update() 
    fr.regulate_frame_rate() 

    event = pygame.event.poll() 
    if event.type == pygame.QUIT: 
      running = 0 

    screen.fill((0, 0, 0)) 

    # Reverse color direction 
    for i, p in enumerate(c): 
     if c[i] > 255 or c[i] < 0: 
      m[i] = -m[i] 
     c[i] += m[i] 

    for i in range(0,w/inc): 
     try: 
      pygame.draw.line(screen, (c[0],c[1],c[2]), (i * inc, 0), (0, h - i*inc)) 
      pygame.draw.line(screen, (c[0],c[1],c[2]), (w - i * inc, 0), (w, h - i*inc)) 
      pygame.draw.line(screen, (c[0],c[1],c[2]), (i * inc, h), (0, i*inc)) 
      pygame.draw.line(screen, (c[0],c[1],c[2]), (w - i * inc, h), (w, i*inc)) 
     except TypeError: 
      pass 

    pygame.display.flip() 

    pygame.quit() 

Answer 1

首先，从主循环中获取“pygame.quit（）”。

闪烁是由于您的绘图代码周期性崩溃。当try-except块中的除外被击中时，那么没有任何东西会被画出来，并且屏幕会“闪烁”黑色。