pygame閃爍

Question

我寫了一個小程序來繪製模式一個循環通過不同的顏色以及一個類，以調節幀速率。出於某種原因，每當我運行它時都會隨機閃爍，我不知道爲什麼。這非常簡單，所以我懷疑它與屏幕更新足夠快有關。我將不勝感激任何建議。

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，從主循環中獲取「pygame.quit（）」。

閃爍是由於您的繪圖代碼週期性崩潰。當try-except塊中的除外被擊中時，那麼沒有任何東西會被畫出來，並且屏幕會「閃爍」黑色。