如何修复“ Pygame中的背景故障”连续滑动背景？

Question

我为pygame添加了连续滚动的背景，以显示效果，就像玩家一直在奔跑一样。它正在工作，但问题是它不是很平稳，几乎没有每秒出现的小故障。我该怎么做才能解决此问题？

主游戏循环

在主while循环背景对象的每一帧更新位置中，左侧是5像素，x-5发生在每一帧中

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-397-9bed171c79be> in <module>
----> 1 model = model_fn()

<ipython-input-396-13bc1955a7f2> in model_fn()
      1 def model_fn():
      2     keras_model = create_compiled_keras_model()
----> 3     return tff.learning.from_compiled_keras_model(keras_model, train)

~/miniconda3/lib/python3.6/site-packages/tensorflow_federated/python/learning/model_utils.py in from_compiled_keras_model(keras_model, dummy_batch)
    190     raise ValueError('`keras_model` must be compiled. Use from_keras_model() '
    191                      'instead.')
--> 192   return enhance(_TrainableKerasModel(keras_model, dummy_batch))
    193 
    194 

~/miniconda3/lib/python3.6/site-packages/tensorflow_federated/python/learning/model_utils.py in __init__(self, inner_model, dummy_batch)
    434     # until the model has been called on input. The work-around is to call
    435     # Model.test_on_batch() once before asking for metrics.
--> 436     inner_model.test_on_batch(**dummy_batch)
    437     # This must occur after test_on_batch()
    438     if len(inner_model.loss_functions) != 1:

TypeError: test_on_batch() argument after ** must be a mapping, not numpy.ndarray

游戏窗口更新

def game_window():
    global warningCount, warningText
    player_one.isDead = False
    gameOver = 20
    run = True
    while run:
        clock.tick(FPS)
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                sys.exit()
            if event.type == USEREVENT + 2:
                r = random.randrange(0, 2)
                if r == 0:
                    enemy_list.append(Enemy(800, 318, 64, 64, GAMESPEED))
                else:
                    spike_list.append(Spike(800, 0, 48, 330))
            player_one.eventHandler(event)
        for enemy in enemy_list:
            enemy.update()
            if enemy.x < 0:
                enemy_list.pop(enemy_list.index(enemy))
            if enemy.falling:
                gameOver -= 1
                if gameOver <= 0:
                    warning[0] = 20
                    warning[1] = 'GAME OVER'
                    main_window()
        for spike in spike_list:
            spike.update()
            if spike.x < 0:
                spike_list.pop(spike_list.index(spike))
            if spike.falling:
                gameOver -= 1
                if gameOver <= 0:
                    warning[0] = 20
                    warning[1] = 'GAME OVER'
                    main_window()
        player_one.update()
        bg_one.bgUpade()
        bg_two.bgUpade()
        redrawGameWindow()

BackGround类

def redrawGameWindow():
    global warningCount, warningText
    bg_one.draw(win)
    bg_two.draw(win)
    player_one.draw(win)
    for enemy in enemy_list:
        enemy.draw(win)
    for spike in spike_list:
        spike.draw(win)
    if warning[0] > 0:
        text_surface = bitter.render(warning[1], 1, COLOR_RED)
        win.blit(text_surface, (int(W / 2 - text_surface.get_width() / 2), 20))
        warning[0] -= 1
    pygame.display.update()