设计一个4*4的华容道游戏。 每个方块上显示1小块图片，顺序无误后拼成完整图片。写出python代码

好的，以下是一个简单的Python代码实现：

import pygame
import random

# 初始化pygame
pygame.init()

# 设置窗口大小和标题
WINDOW_SIZE = (400, 400)
screen = pygame.display.set_mode(WINDOW_SIZE)
pygame.display.set_caption("华容道游戏")

# 加载图片
image = pygame.image.load("image.png")

# 设置方块大小和间距
BLOCK_SIZE = 80
BLOCK_SPACING = 5

# 定义方块类
class Block:
    def __init__(self, image, x, y, row, col):
        self.image = image
        self.x = x
        self.y = y
        self.row = row
        self.col = col

    # 绘制方块
    def draw(self):
        screen.blit(self.image, (self.x, self.y))

    # 检查方块是否可以移动
    def is_movable(self, empty_block):
        if self.row == empty_block.row and abs(self.col - empty_block.col) == 1:
            return True
        if self.col == empty_block.col and abs(self.row - empty_block.row) == 1:
            return True
        return False

    # 移动方块
    def move(self, empty_block):
        if self.is_movable(empty_block):
            # 交换位置
            self.row, empty_block.row = empty_block.row, self.row
            self.col, empty_block.col = empty_block.col, self.col
            self.x, empty_block.x = empty_block.x, self.x
            self.y, empty_block.y = empty_block.y, self.y

# 创建方块数组
blocks = []
for row in range(4):
    for col in range(4):
        x = col * (BLOCK_SIZE + BLOCK_SPACING)
        y = row * (BLOCK_SIZE + BLOCK_SPACING)
        # 最后一个方块为空白方块
        if row == 3 and col == 3:
            blocks.append(Block(None, x, y, row, col))
        else:
            # 从完整图片中随机选择一小块
            sub_image = image.subsurface(pygame.Rect(col * BLOCK_SIZE, row * BLOCK_SIZE, BLOCK_SIZE, BLOCK_SIZE))
            blocks.append(Block(sub_image, x, y, row, col))

# 随机打乱方块顺序
random.shuffle(blocks)

# 获取空白方块
def get_empty_block(blocks):
    for block in blocks:
        if block.image == None:
            return block

# 游戏主循环
running = True
while running:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.MOUSEBUTTONDOWN:
            # 获取鼠标点击位置
            mouse_pos = pygame.mouse.get_pos()
            # 查找被点击的方块
            for block in blocks:
                if block.image != None and block.x <= mouse_pos[0] < block.x + BLOCK_SIZE and block.y <= mouse_pos[1] < block.y + BLOCK_SIZE:
                    # 移动方块
                    empty_block = get_empty_block(blocks)
                    block.move(empty_block)
                    break

    # 绘制游戏界面
    screen.fill((255, 255, 255))
    for block in blocks:
        block.draw()
    pygame.display.update()

# 退出pygame
pygame.quit()

请将代码保存为`puzzle.py`文件，并将`image.png`文件（完整图片）放在同一目录下。运行代码后，即可开始游戏。