我怎样才能让游戏重新开始?

我正在做一个游戏界面，它包括一个重启按钮。我让重启按钮，如果按下重置基本变量为假和0，但不是重新开始游戏只是退出。我不知道是否变量不能再次设置为真，或者是否有一个代码语句，重新启动一切，包括变量。有什么建议吗? 所有代码都在def DrawGameOver中。

def DrawGameOver():
    win.blit (Overscreen, (0, 0))
    button1 = pygame.Rect(200, 400, 100, 50)
    pygame.draw.rect(win, [255, 0, 0], button1)
    if event.type == pygame.MOUSEBUTTONDOWN:
        mouse_pos = event.pos
        if button1.collidepoint(mouse_pos):
            player.gameover = False
            player.run = True
            player.grassdamage = 0
            player.damage1 = False
            player.damage2 = False
            player.damage3 = False
            player.damage4 = False
            player.damage5 = False
            player.damage6 = False
            player.damage7 = False
            player.damage8 = False
            player.score = 0
            time_now = 0
    Text = pygame.font.Font('freesansbold.ttf', 20)
    TextSurf, TextRect = text_objects("Restart?", Text)
    TextRect.center = ((250), (425))
    win.blit(TextSurf, TextRect)
    pygame.display.update()

while player.gameover:
    clock.tick (60)
    print (player.run, player.gameover)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            player.gameover = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                player.gameover = False
    DrawGameOver()

问题来源StackOverflow 地址：/questions/59378684/how-would-i-get-the-game-to-restart