java基于多线程的五子棋游戏代码

Java基于多线程的五子棋游戏代码，可以分为以下几个模块：

1. 游戏引擎模块
游戏引擎模块是整个游戏的核心，主要负责游戏的初始化、游戏规则、棋盘状态的判断和更新等。在多线程模式下，可以通过使用synchronized关键字来实现对棋盘状态的同步访问，避免多个线程同时对同一位置进行操作。

2. 游戏界面模块
游戏界面模块负责绘制游戏界面和响应用户的操作。在多线程模式下，可以通过使用SwingWorker类来实现多线程UI更新。

3. AI模块
AI模块负责计算机的下棋策略，可以使用Alpha-Beta剪枝算法或者蒙特卡罗树搜索算法等。在多线程模式下，可以通过使用Callable接口和Future类来实现多线程计算。

以下是基于多线程的五子棋游戏代码的参考实现：

import java.awt.*;
import java.awt.event.*;
import java.util.concurrent.*;

import javax.swing.*;

public class Gobang extends JFrame {

    private static final long serialVersionUID = 1L;
    private static final int ROWS = 15;
    private static final int COLS = 15;
    private static final int CELL_SIZE = 30;
    private static final int CANVAS_WIDTH = ROWS * CELL_SIZE;
    private static final int CANVAS_HEIGHT = COLS * CELL_SIZE;
    private static final Color BOARD_COLOR = new Color(0x8D, 0x6E, 0x4D);
    private static final Color LINE_COLOR = Color.BLACK;
    private static final int WINNING_LENGTH = 5;
    private static final int DELAY = 1000; // AI思考时间间隔

    private Board board;
    private Cell currentCell;
    private int currentPlayer;
    private JLabel statusBar;
    private ExecutorService executor;
    private Future<Cell> thinking;

    public Gobang() {
        board = new Board(ROWS, COLS);
        currentPlayer = Board.BLACK_PLAYER;
        executor = Executors.newSingleThreadExecutor();

        DrawCanvas canvas = new DrawCanvas();
        canvas.setPreferredSize(new Dimension(CANVAS_WIDTH, CANVAS_HEIGHT));
        canvas.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                if (thinking != null && !thinking.isDone()) {
                    return;
                }

                int row = e.getY() / CELL_SIZE;
                int col = e.getX() / CELL_SIZE;
                if (row < 0 || row >= ROWS || col < 0 || col >= COLS) {
                    return;
                }

                Cell cell = new Cell(row, col, currentPlayer);
                if (!board.isEmpty(cell)) {
                    return;
                }

                currentCell = cell;
                board.put(currentCell);
                repaint();

                if (board.isWinning(currentCell)) {
                    JOptionPane.showMessageDialog(Gobang.this, "Player " + currentPlayer + " wins!");
                    System.exit(0);
                }

                currentPlayer = Board.getOpponent(currentPlayer);
                statusBar.setText("Player " + currentPlayer + "'s turn");

                thinking = executor.submit(new Callable<Cell>() {
                    @Override
                    public Cell call() throws Exception {
                        Thread.sleep(DELAY);
                        Cell cell = board.getBestMove(Board.getOpponent(currentPlayer));
                        return cell;
                    }
                });

                try {
                    Cell cell = thinking.get();
                    if (cell != null) {
                        currentCell = cell;
                        board.put(currentCell);
                        repaint();

                        if (board.isWinning(currentCell)) {
                            JOptionPane.showMessageDialog(Gobang.this, "Player " + currentPlayer + " wins!");
                            System.exit(0);
                        }

                        currentPlayer = Board.getOpponent(currentPlayer);
                        statusBar.setText("Player " + currentPlayer + "'s turn");
                    }
                } catch (InterruptedException | ExecutionException ex) {
                    ex.printStackTrace();
                }
            }
        });

        statusBar = new JLabel("Player " + currentPlayer + "'s turn", JLabel.CENTER);
        statusBar.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 14));
        statusBar.setBorder(BorderFactory.createEmptyBorder(2, 5, 4, 5));

        Container cp = getContentPane();
        cp.setLayout(new BorderLayout());
        cp.add(canvas, BorderLayout.CENTER);
        cp.add(statusBar, BorderLayout.SOUTH);

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setTitle("Gobang");
        pack();
        setVisible(true);
        setResizable(false);
        setLocationRelativeTo(null);
    }

    class DrawCanvas extends JPanel {

        private static final long serialVersionUID = 1L;

        @Override
        public void paintComponent(Graphics g) {
            super.paintComponent(g);

            setBackground(BOARD_COLOR);
            g.setColor(LINE_COLOR);

            for (int row = 0; row < ROWS; ++row) {
                g.drawLine(0, row * CELL_SIZE, CANVAS_WIDTH, row * CELL_SIZE);
            }

            for (int col = 0; col < COLS; ++col) {
                g.drawLine(col * CELL_SIZE, 0, col * CELL_SIZE, CANVAS_HEIGHT);
            }

            for (int row = 0; row < ROWS; ++row) {
                for (int col = 0; col < COLS; ++col) {
                    Cell cell = board.getCell(row, col);
                    if (cell == null) {
                        continue;
                    }

                    int x1 = col * CELL_SIZE + CELL_SIZE / 2;
                    int y1 = row * CELL_SIZE + CELL_SIZE / 2;
                    g.setColor(cell.getPlayer() == Board.BLACK_PLAYER ? Color.BLACK : Color.WHITE);
                    g.fillOval(x1 - CELL_SIZE / 2, y1 - CELL_SIZE / 2, CELL_SIZE, CELL_SIZE);
                }
            }

            if (currentCell != null) {
                int x1 = currentCell.getCol() * CELL_SIZE + CELL_SIZE / 2;
                int y1 = currentCell.getRow() * CELL_SIZE + CELL_SIZE / 2;
                g.setColor(currentCell.getPlayer() == Board.BLACK_PLAYER ? Color.BLACK : Color.WHITE);
                g.drawOval(x1 - CELL_SIZE / 2, y1 - CELL_SIZE / 2, CELL_SIZE, CELL_SIZE);
            }
        }
    }

    class Board {

        public static final int BLACK_PLAYER = 1;
        public static final int WHITE_PLAYER = -1;

        private Cell[][] cells;
        private int rows;
        private int cols;

        public Board(int rows, int cols) {
            this.rows = rows;
            this.cols = cols;
            cells = new Cell[rows][cols];
        }

        public Cell getCell(int row, int col) {
            return cells[row][col];
        }

        public boolean isEmpty(Cell cell) {
            return cells[cell.getRow()][cell.getCol()] == null;
        }

        public void put(Cell cell) {
            cells[cell.getRow()][cell.getCol()] = cell;
        }

        public boolean isWinning(Cell lastCell) {
            int player = lastCell.getPlayer();
            int row = lastCell.getRow();
            int col = lastCell.getCol();

            // 横向判断
            int count = 1;
            for (int i = col - 1; i >= Math.max(0, col - WINNING_LENGTH); --i) {
                if (cells[row][i] == null || cells[row][i].getPlayer() != player) {
                    break;
                }
                ++count;
            }
            for (int i = col + 1; i <= Math.min(cols - 1, col + WINNING_LENGTH); ++i) {
                if (cells[row][i] == null || cells[row][i].getPlayer() != player) {
                    break;
                }
                ++count;
            }
            if (count >= WINNING_LENGTH) {
                return true;
            }

            // 纵向判断
            count = 1;
            for (int i = row - 1; i >= Math.max(0, row - WINNING_LENGTH); --i) {
                if (cells[i][col] == null || cells[i][col].getPlayer() != player) {
                    break;
                }
                ++count;
            }
            for (int i = row + 1; i <= Math.min(rows - 1, row + WINNING_LENGTH); ++i) {
                if (cells[i][col] == null || cells[i][col].getPlayer() != player) {
                    break;
                }
                ++count;
            }
            if (count >= WINNING_LENGTH) {
                return true;
            }

            // 左上-右下判断
            count = 1;
            for (int i = row - 1, j = col - 1; i >= Math.max(0, row - WINNING_LENGTH) && j >= Math.max(0,
                    col - WINNING_LENGTH); --i, --j) {
                if (cells[i][j] == null || cells[i][j].getPlayer() != player) {
                    break;
                }
                ++count;
            }
            for (int i = row + 1, j = col + 1; i <= Math.min(rows - 1, row + WINNING_LENGTH)
                    && j <= Math.min(cols - 1, col + WINNING_LENGTH); ++i, ++j) {
                if (cells[i][j] == null || cells[i][j].getPlayer() != player) {
                    break;
                }
                ++count;
            }
            if (count >= WINNING_LENGTH) {
                return true;
            }

            // 右上-左下判断
            count = 1;
            for (int i = row - 1, j = col + 1; i >= Math.max(0, row - WINNING_LENGTH)
                    && j <= Math.min(cols - 1, col + WINNING_LENGTH); --i, ++j) {
                if (cells[i][j] == null || cells[i][j].getPlayer() != player) {
                    break;
                }
                ++count;
            }
            for (int i = row + 1, j = col - 1; i <= Math.min(rows - 1, row + WINNING_LENGTH) && j >= Math.max(0,
                    col - WINNING_LENGTH); ++i, --j) {
                if (cells[i][j] == null || cells[i][j].getPlayer() != player) {
                    break;
                }
                ++count;
            }
            if (count >= WINNING_LENGTH) {
                return true;
            }

            return false;
        }

        public Cell getBestMove(int player) {
            Cell bestMove = null;
            int bestScore = Integer.MIN_VALUE;

            for (int row = 0; row < rows; ++row) {
                for (int col = 0; col < cols; ++col) {
                    if (!isEmpty(new Cell(row, col))) {
                        continue;
                    }

                    Cell cell = new Cell(row, col, player);
                    put(cell);

                    int score = minimax(player, Integer.MIN_VALUE, Integer.MAX_VALUE);

                    put(null);

                    if (score > bestScore) {
                        bestScore = score;
                        bestMove = cell;
                    }
                }
            }

            return bestMove;
        }

        private int minimax(int player, int alpha, int beta) {
            if (isWinning(currentCell)) {
                return player == currentPlayer ? Integer.MIN_VALUE : Integer.MAX_VALUE;
            }

            if (!hasEmpty()) {
                return 0;
            }

            int bestScore = player == currentPlayer ? Integer.MIN_VALUE : Integer.MAX_VALUE;

            for (int row = 0; row < rows; ++row) {
                for (int col = 0; col < cols; ++col) {
                    if (!isEmpty(new Cell(row, col))) {
                        continue;
                    }

                    Cell cell = new Cell(row, col, Board.getOpponent(player));
                    put(cell);

                    int score = minimax(Board.getOpponent(player), alpha, beta);

                    put(null);

                    if (player == currentPlayer && score > bestScore) { // maximizing
                        bestScore = score;
                        alpha = Math.max(alpha, score);
                        if (beta <= alpha) { // beta pruning
                            return bestScore;
                        }
                    } else if (player != currentPlayer && score < bestScore) { // minimizing
                        bestScore = score;
                        beta = Math.min(beta, score);
                        if (beta <= alpha) { // alpha pruning
                            return bestScore;
                        }
                    }
                }
            }

            return bestScore;
        }

        private boolean hasEmpty() {
            for (int row = 0; row < rows; ++row) {
                for (int col = 0; col < cols; ++col) {
                    if (isEmpty(new Cell(row, col))) {
                        return true;
                    }
                }
            }
            return false;
        }

        public static int getOpponent(int player) {
            return player == BLACK_PLAYER ? WHITE_PLAYER : BLACK_PLAYER;
        }

    }

    class Cell {

        private int row;
        private int col;
        private int player;

        public Cell(int row, int col) {
            this(row, col, Board.BLACK_PLAYER);
        }

        public Cell(int row, int col, int player) {
            this.row = row;
            this.col = col;
            this.player = player;
        }

        public int getRow() {
            return row;
        }

        public void setRow(int row) {
            this.row = row;
        }

        public int getCol() {
            return col;
        }

        public void setCol(int col) {
            this.col = col;
        }

        public int getPlayer() {
            return player;
        }

        public void setPlayer(int player) {
            this.player = player;
        }

    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> new Gobang());
    }

}