Pygame没有检测到碰撞

Question

我在pygame中制作了一个简单的自动卷轴程序，但是pygame.sprite.spritecollide不起作用。它没有显示任何错误，恐龙忽略了障碍。

for i in range(numberblocks):
    block = obstacle(GRAY, random.randint(15, 30), 20)
    block.rect.x = random.randrange(1000, 40000)
    block.rect.y = 500
    obstacle_list.add(block)

(Main Loop):
    blocks_hit_list = pygame.sprite.spritecollide(dino, obstacle_list, True)
    for block in blocks_hit_list:
        score += 1