编写一个推箱子的代码

推箱子游戏是一种经典的智力游戏，玩家需要操作人物将箱子移动到指定位置，最终完成所有关卡的挑战。下面是一个简单的推箱子游戏代码示例，使用 Python 语言编写。

游戏规则：

1. 人物可以向上、下、左、右四个方向移动，每次只能移动一格。
2. 箱子也可以向四个方向移动，但只能在人物推动的情况下移动。
3. 箱子不能被推到障碍物或墙壁上，只能被推到空地上或目标位置上。
4. 当所有箱子都被推到目标位置上时，游戏胜利。

代码实现：

# -*- coding: utf-8 -*-

# 地图数据
MAP_DATA = [
    "#######",
    "#     #",
    "#  o  #",
    "#     #",
    "#  x  #",
    "#     #",
    "#######"
]

# 定义地图元素类型
ELEMENT_EMPTY = " "
ELEMENT_WALL = "#"
ELEMENT_BOX = "o"
ELEMENT_TARGET = "x"
ELEMENT_PLAYER = "P"

# 初始化游戏状态
player_row, player_col = 2, 3  # 初始化人物位置
box_positions = [(2, 4)]  # 初始化箱子位置

# 游戏循环
while True:
    # 打印地图
    for row in range(len(MAP_DATA)):
        for col in range(len(MAP_DATA[row])):
            if row == player_row and col == player_col:
                print(ELEMENT_PLAYER, end="")
            elif (row, col) in box_positions:
                print(ELEMENT_BOX, end="")
            else:
                print(MAP_DATA[row][col], end="")
        print()

    # 判断是否胜利
    if all([(row, col) in box_positions for row, col in target_positions]):
        print("Congratulations, you win!")
        break

    # 获取玩家输入
    direction = input("Please enter direction (w/s/a/d): ")

    # 移动人物
    if direction == "w":
        if MAP_DATA[player_row - 1][player_col] != ELEMENT_WALL and (player_row - 1, player_col) not in box_positions:
            player_row -= 1
        elif MAP_DATA[player_row - 1][player_col] != ELEMENT_WALL and (player_row - 1, player_col) in box_positions:
            if MAP_DATA[player_row - 2][player_col] != ELEMENT_WALL and (player_row - 2, player_col) not in box_positions:
                player_row -= 1
                box_positions.remove((player_row, player_col))
                box_positions.append((player_row - 1, player_col))

    elif direction == "s":
        if MAP_DATA[player_row + 1][player_col] != ELEMENT_WALL and (player_row + 1, player_col) not in box_positions:
            player_row += 1
        elif MAP_DATA[player_row + 1][player_col] != ELEMENT_WALL and (player_row + 1, player_col) in box_positions:
            if MAP_DATA[player_row + 2][player_col] != ELEMENT_WALL and (player_row + 2, player_col) not in box_positions:
                player_row += 1
                box_positions.remove((player_row, player_col))
                box_positions.append((player_row + 1, player_col))

    elif direction == "a":
        if MAP_DATA[player_row][player_col - 1] != ELEMENT_WALL and (player_row, player_col - 1) not in box_positions:
            player_col -= 1
        elif MAP_DATA[player_row][player_col - 1] != ELEMENT_WALL and (player_row, player_col - 1) in box_positions:
            if MAP_DATA[player_row][player_col - 2] != ELEMENT_WALL and (player_row, player_col - 2) not in box_positions:
                player_col -= 1
                box_positions.remove((player_row, player_col))
                box_positions.append((player_row, player_col - 1))

    elif direction == "d":
        if MAP_DATA[player_row][player_col + 1] != ELEMENT_WALL and (player_row, player_col + 1) not in box_positions:
            player_col += 1
        elif MAP_DATA[player_row][player_col + 1] != ELEMENT_WALL and (player_row, player_col + 1) in box_positions:
            if MAP_DATA[player_row][player_col + 2] != ELEMENT_WALL and (player_row, player_col + 2) not in box_positions:
                player_col += 1
                box_positions.remove((player_row, player_col))
                box_positions.append((player_row, player_col + 1))