如何在调整pygame窗口大小后调整按钮大小？

import pygame
from pygame.locals import *

# 初始化pygame
pygame.init()

# 创建窗口
window_width = 800
window_height = 600
window = pygame.display.set_mode((window_width, window_height), RESIZABLE)

# 创建按钮
button_width = 200
button_height = 50
button = pygame.Rect((window_width - button_width) // 2, (window_height - button_height) // 2, button_width, button_height)

# 绘制按钮
def draw_button():
    pygame.draw.rect(window, (255, 0, 0), button)
    font = pygame.font.Font(None, 36)
    text = font.render("Button", True, (255, 255, 255))
    text_rect = text.get_rect(center=button.center)
    window.blit(text, text_rect)

# 处理窗口大小变化事件
def handle_resize(event):
    global window_width, window_height, button
    window_width, window_height = event.size
    button = pygame.Rect((window_width - button_width) // 2, (window_height - button_height) // 2, button_width, button_height)

# 游戏主循环
running = True
while running:
    for event in pygame.event.get():
        if event.type == QUIT:
            running = False
        elif event.type == VIDEORESIZE:
            window = pygame.display.set_mode(event.size, RESIZABLE)
            handle_resize(event)

    # 绘制窗口背景
    window.fill((255, 255, 255))

    # 绘制按钮
    draw_button()

    # 更新显示
    pygame.display.flip()

# 退出游戏
pygame.quit()