如何在搅拌器中为对象添加位置约束？

import pygame

def constrain_position(object, min_x, max_x, min_y, max_y):
    if object.x < min_x:
        object.x = min_x
    elif object.x > max_x:
        object.x = max_x
    
    if object.y < min_y:
        object.y = min_y
    elif object.y > max_y:
        object.y = max_y

# 初始化搅拌器和对象
pygame.init()
screen = pygame.display.set_mode((800, 600))
object = pygame.Rect(100, 100, 50, 50)

# 主循环
running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
    
    # 更新对象的位置
    object.x += 1
    object.y += 1
    
    # 添加位置约束
    constrain_position(object, 0, 800, 0, 600)
    
    # 渲染画面
    screen.fill((255, 255, 255))
    pygame.draw.rect(screen, (0, 0, 0), object)
    pygame.display.flip()

# 退出程序
pygame.quit()