帮我用python写一个2048

2048是一款数字滑动拼接游戏，通常通过命令行界面或图形化界面展示。下面是一个简单的Python实现2048游戏的命令行版本，使用`numpy`库作为矩阵操作的基础：

import numpy as np

# 定义游戏面板初始状态
def create_board(size=4):
    return np.array([[0] * size for _ in range(size)])

# 操作函数，移动方向
def move(direction, board):
    directions = {
        'w': lambda x: np.roll(x, shift=-1, axis=0),
        's': lambda x: x,
        'a': np.roll(x, shift=-1, axis=1),
        'd': lambda x: np.roll(x, shift=1, axis=1)
    }
    new_board = directions[direction](board + 1)  # 尝试合并并加一
    merged = (new_board != 0).sum(axis=0) != len(new_board)  # 判断是否有合并
    return merge(new_board, merged)

# 合并相邻元素
def merge(board, merged):
    while True:
        row_merges = [np.where(row == max(row))[0][0] for row in board]
        if not any(row_merges):
            break
        merge_points = [(i, j) for i, row in enumerate(board) if row_merges[i]]
        for i, j in merge_points:
            board[i, :j+1] += board[i, j+1:]
            board[i, j+1:] = 0

    col_merges = [np.argmax(col) for col in np.transpose(board)]
    for i, j in zip(*np.where(np.arange(len(board))[:, None] == col_merges)):
        board[j, :i+1] += board[j, i+1:]
        board[j, i+1:] = 0

    return board

# 游戏主循环
def play_game():
    board_size = 4
    game_board = create_board(board_size)
    score = 0
    print("\nWelcome to 2048!")
    print("Score:", score)
    while True:
        direction = input("Enter a move (w/s/a/d): ").lower()
        game_board = move(direction, game_board)
        score += game_board.max()
        print("Board:")
        print(game_board)
        print("Score:", score)
        if all(score >= pow(2, board_size), game_board.sum() == 0):
            print(f"Congratulations! You reached the highest score: {score}")
            break

play_game()