java简单的五子棋

以下是一个简单的Java五子棋游戏的实现，其中包括棋盘的绘制和落子的判断：

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Gobang extends JFrame implements Config {
    private int[][] board = new int[COUNT][COUNT]; // 棋盘数组，0表示空，1表示黑子，2表示白子
    private int player = 1; // 当前玩家，1表示黑方，2表示白方

    public Gobang() {
        setTitle("五子棋");
        setSize(600, 600);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        setResizable(false);

        addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                int x = e.getX();
                int y = e.getY();
                int i = (x - X0 + SIZE / 2) / SIZE;
                int j = (y - Y0 + SIZE / 2) / SIZE;
                if (i >= 0 && i < COUNT && j >= 0 && j < COUNT && board[i][j] == 0) {
                    board[i][j] = player;
                    repaint();
                    if (checkWin(i, j)) {
                        JOptionPane.showMessageDialog(null, (player == 1 ? "黑方" : "白方") + "获胜！");
                        reset();
                    } else {
                        player = 3 - player;
                    }
                }
            }
        });

        setVisible(true);
    }

    public void paint(Graphics g) {
        super.paint(g);
        for (int i = 0; i < COUNT; i++) {
            g.drawLine(X0, Y0 + i * SIZE, X0 + (COUNT - 1) * SIZE, Y0 + i * SIZE);
            g.drawLine(X0 + i * SIZE, Y0, X0 + i * SIZE, Y0 + (COUNT - 1) * SIZE);
        }
        for (int i = 0; i < COUNT; i++) {
            for (int j = 0; j < COUNT; j++) {
                if (board[i][j] == 1) {
                    g.setColor(Color.BLACK);
                    g.fillOval(X0 + i * SIZE - SIZE / 2, Y0 + j * SIZE - SIZE / 2, SIZE, SIZE);
                } else if (board[i][j] == 2) {
                    g.setColor(Color.WHITE);
                    g.fillOval(X0 + i * SIZE - SIZE / 2, Y0 + j * SIZE - SIZE / 2, SIZE, SIZE);
                }
            }
        }
    }

    private boolean checkWin(int i, int j) {
        int count = 1;
        for (int k = 1; k < 5 && i + k < COUNT && board[i + k][j] == player; k++) count++;
        for (int k = 1; k < 5 && i - k >= 0 && board[i - k][j] == player; k++) count++;
        if (count >= 5) return true;

        count = 1;
        for (int k = 1; k < 5 && j + k < COUNT && board[i][j + k] == player; k++) count++;
        for (int k = 1; k < 5 && j - k >= 0 && board[i][j - k] == player; k++) count++;
        if (count >= 5) return true;

        count = 1;
        for (int k = 1; k < 5 && i + k < COUNT && j + k < COUNT && board[i + k][j + k] == player; k++) count++;
        for (int k = 1; k < 5 && i - k >= 0 && j - k >= 0 && board[i - k][j - k] == player; k++) count++;
        if (count >= 5) return true;

        count = 1;
        for (int k = 1; k < 5 && i + k < COUNT && j - k >= 0 && board[i + k][j - k] == player; k++) count++;
        for (int k = 1; k < 5 && i - k >= 0 && j + k < COUNT && board[i - k][j + k] == player; k++) count++;
        if (count >= 5) return true;

        return false;
    }

    private void reset() {
        for (int i = 0; i < COUNT; i++) {
            for (int j = 0; j < COUNT; j++) {
                board[i][j] = 0;
            }
        }
        player = 1;
        repaint();
    }

    public static void main(String[] args) {
        new Gobang();
    }
}

interface Config {
    public static final int X0 = 25;
    public static final int Y0 = 25;
    public static final int SIZE = 35;
    public static final int COUNT = 15;
}