Java实现小程序简单五子棋

下面是Java实现小程序简单五子棋的完整攻略:

简介

五子棋是一种双人对弈的纯策略型棋类游戏，起源于中国古代，俗称"五子连珠"、"连五"等。本文将介绍如何利用Java实现一个简单的五子棋游戏。

步骤

1.创建项目

在Eclipse等开发工具中创建Java项目，选择Swing界面库，创建主类和GUI类。

2.设计界面

利用Swing实现GUI界面，包括棋盘、棋子、游戏菜单等。可以使用java.awt.Graphics类在JPanel上绘制棋盘、棋子等。

示例代码:

public class ChessBoard extends JPanel {
    private static final int ROWS = 15;
    private static final int COLS = 15;
    private static final int WIDTH = 30;
    private static final int OFFSET = 50;

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        for (int i = 0; i < ROWS; i++) {
            for (int j = 0; j < COLS; j++) {
                int x = i * WIDTH + OFFSET;
                int y = j * WIDTH + OFFSET;
                g.drawRect(x, y, WIDTH, WIDTH);
            }
        }
    }
}

3.实现游戏逻辑

利用Java代码实现五子棋游戏逻辑，包括判断胜负、落子、悔棋等。

示例代码:

public class ChessGame {
    private static final int BLACK = 1;
    private static final int WHITE = 2;
    private int[][] board = new int[15][15];
    private int currentPlayer = BLACK;

    public void move(int row, int col) {
        board[row][col] = currentPlayer;
        currentPlayer = currentPlayer == BLACK ? WHITE : BLACK;
    }

    public boolean isWin(int row, int col) {
        // 判断横向是否连成五个
        for (int i = row - 4; i <= row; i++) {
            if (i < 0 || i + 4 >= board.length) {
                continue;
            }
            if (board[i][col] == currentPlayer &&
                board[i+1][col] == currentPlayer &&
                board[i+2][col] == currentPlayer &&
                board[i+3][col] == currentPlayer &&
                board[i+4][col] == currentPlayer) {
                return true;
            }
        }
        // 判断竖向是否连成五个
        for (int i = col - 4; i <= col; i++) {
            if (i < 0 || i + 4 >= board[0].length) {
                continue;
            }
            if (board[row][i] == currentPlayer &&
                board[row][i+1] == currentPlayer &&
                board[row][i+2] == currentPlayer &&
                board[row][i+3] == currentPlayer &&
                board[row][i+4] == currentPlayer) {
                return true;
            }
        }
        // 判断右上到左下是否连成五个
        for (int i = row - 4, j = col + 4; i <= row && j >= col; i++, j--) {
            if (i < 0 || j < 0 || i + 4 >= board.length || j - 4 < 0) {
                continue;
            }
            if (board[i][j] == currentPlayer &&
                board[i+1][j-1] == currentPlayer &&
                board[i+2][j-2] == currentPlayer &&
                board[i+3][j-3] == currentPlayer &&
                board[i+4][j-4] == currentPlayer) {
                return true;
            }
        }
        // 判断左上到右下是否连成五个
        for (int i = row - 4, j = col - 4; i <= row && j <= col; i++, j++) {
            if (i < 0 || j < 0 || i + 4 >= board.length || j + 4 >= board[0].length) {
                continue;
            }
            if (board[i][j] == currentPlayer &&
                board[i+1][j+1] == currentPlayer &&
                board[i+2][j+2] == currentPlayer &&
                board[i+3][j+3] == currentPlayer &&
                board[i+4][j+4] == currentPlayer) {
                return true;
            }
        }
        return false;
    }

    public void regret() {
        //悔棋回到上一步，需要自行实现
    }
}

4.添加事件监听器

为GUI组件添加事件监听器，例如为棋盘添加鼠标点击事件，代码实现落子和判断胜负等操作。

示例代码：

public class ChessBoard extends JPanel {
    private ChessGame game;
    private int selectedRow;
    private int selectedCol;

    public ChessBoard() {
        game = new ChessGame();
        addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                int x = e.getX();
                int y = e.getY();
                int row = (x - ChessGame.OFFSET) / ChessGame.WIDTH;
                int col = (y - ChessGame.OFFSET) / ChessGame.WIDTH;
                game.move(row, col);
                if (game.isWin(row, col)) {
                    JOptionPane.showMessageDialog(null, "恭喜Player" + game.getCurrentPlayer() + " 获胜!");
                    System.exit(0);
                }
                repaint();
            }
        });
    }
}

5.运行程序

运行程序，开始游戏。

结语

至此，我们就完成了用Java实现小程序简单五子棋的完整攻略。这只是一个简单的五子棋，如果有更多的时间和精力，可以考虑实现更多的功能，例如人工智能，多人游戏等。

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