Python没有检测到我的一个对象发生碰撞

如何解决Python没有检测到我的一个对象发生碰撞

if ball.colliderect(border_up_rect):
    border_up_collide = True
elif ball.colliderect(border_down_rect):
    border_down_collide = True
elif ball.colliderect(goal_attack_rect):
    my_score += 1
elif ball.colliderect(goal_def_rect):
    ai_score += 1


if border_up_collide == True:
    if where_did_it_come_from == True:
        ball_x -= 7
        ball_y += 2
        pboard_shoot1 = False
        pboard_shoot2 = False
        pboard_shoot3 = False
    elif where_did_it_come_from == False:
        ball_x -= 3
        ball_y += 2
        ai_shoot1 = False
        ai_shoot2 = False
        ai_shoot3 = False
elif border_down_collide == True:
    if where_did_it_come_from == True:
        ball_x -= 7
        ball_y -= 2
        pboard_shoot1 = False
        pboard_shoot2 = False
        pboard_shoot3 = False
    elif where_did_it_come_from == False:
        ball_x -= 3
        ball_y -= 2
        ai_shoot1 = False
        ai_shoot2 = False
        ai_shoot3 = False
elif goal_attack_collide == True:
    if where_did_it_come_from == True:
        ball_x = 600
        ball_y = 220
        pboard_shoot1 = False
        pboard_shoot2 = False
        pboard_shoot3 = False
    elif where_did_it_come_from == False:
        ball_x = 600
        ball_y = 220
        ai_shoot1 = False
        ai_shoot2 = False
        ai_shoot3 = False

在这里，它可以与border_up_rect以及其他所有collide.rect一起正常使用，但不能与border_down_rect一起使用。它只是让球通过。

我该如何解决？

解决方法

border_down_rect不起作用的原因是，border_up_rect仍然为真，并且在border_up_rect为真之前，它不会切换elif语句。