Pygame 按钮功能问题

Pygame button issue in functionality

所以我正在为游戏创建一个菜单,并且制作了一个按钮功能。这些按钮确实有效,但只是有时:

这对我来说没有意义,因为所有按钮都使用相同的功能:

def button(msg,x,y,h):
  mouse = pygame.mouse.get_pos()
  click = pygame.mouse.get_pressed()

  pygame.draw.rect(screen, RED, (x,y, BUTTON_WIDTH, h))
  smallText = pygame.font.Font("freesansbold.ttf", 20)
  textSurf, textRect = text_objects(msg, smallText, WHITE)
  textRect.center = ((x+(BUTTON_WIDTH/2)),(y+(h/2)))
  screen.blit(textSurf, textRect)

  for event in pygame.event.get():
    if event.type == pygame.QUIT:
        sys.exit()

    if x+BUTTON_WIDTH > mouse[0] > x and y+h > mouse[1] > y:
      pygame.draw.rect(screen, BRIGHT_RED, (x,y, BUTTON_WIDTH, h))
      screen.blit(textSurf, textRect)
      if click[0] == 1:
        return True

def intro_screen():
  intro = True
  while intro:
    screen.fill(GREEN)
    if button("2-Player",245,145,BUTTON_HEIGHT):
      multiplayer_loop()
    if button("1-Player",245,270,BUTTON_HEIGHT):
      login_screen(True)
    if button("Scores",245,395,40):
      login_screen(False)
    screen.blit(TITLE, (120, 5))

    pygame.display.update()

pygame.init()
intro_screen()

Here is how the menu looks

非常感谢任何帮助,谢谢。

问题是按钮函数中的事件循环。请注意,pygame.event.get() 获取所有消息并从队列中删除 它们。
所以 1 个按钮(主要是第一个按钮)将获得事件,而其他按钮则没有事件。

从按钮中删除 pygame.event.get()。在主应用程序循环中获取事件并将事件列表传递给按钮函数。

无论如何你根本不需要按钮函数中的事件循环,因为你通过 pygame.mouse.get_pressed().
评估按钮的状态 但是,我建议使用 MOUSEBUTTONDOWN 事件。参见 pygame.event

def button(events,msg,x,y,h):
    smallText = pygame.font.Font("freesansbold.ttf", 20)
    textSurf, textRect = text_objects(msg, smallText, WHITE)
    textRect.center = button_rect.center

    mouse       = pygame.mouse.get_pos()
    button_rect = pygame.Rect(x, y, BUTTON_WIDTH, h)
    hit         = button_rect.collidepoint(mouse)

    pygame.draw.rect(screen, BRIGHT_RED if hit else RED, button_rect)
    screen.blit(textSurf, textRect)

    if hit:
        for event in events:
            if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1:
                return True
def intro_screen():
    intro = True
    while intro:

        events = pygame.event.get()
        for event in events:
            if event.type == pygame.QUIT:
                sys.exit()

        screen.fill(GREEN)
        if button(events , "2-Player",245,145,BUTTON_HEIGHT):
            multiplayer_loop()
        if button(events , "1-Player",245,270,BUTTON_HEIGHT):
            login_screen(True)
        if button(events , "Scores",245,395,40):
            login_screen(False)
        screen.blit(TITLE, (120, 5))

        pygame.display.update()

注意,每帧应该只调用 1 次 pygame.event.get()