Java Swing开发扫雷小游戏

用Java来开发了以下经典小游戏扫雷，作为学习Java Swing的练手。

主要代码是有三个类：setting类存放游戏的一些设定，Map是new一个游戏开始的框架，MapFrame是游戏框架以及响应点击等方法。

以下是3个类的代码，初学者写的代码难免有许多不成熟的地方，请各位轻喷。

setting

package map;

public class Setting {
    public int row;
    public int col;
    public int mine;
    public Setting(int row,int col,int mine) {
        this.row=row;
        this.col=col;
        this.mine=mine;
    }
}

Map

package map;

import java.awt.*;
import javax.swing.*;
import java.util.Random;

public class Map {
    public static final int[] dx=new int[]{-1,-1,-1,0,1,1,1,0};
    public static final int[] dy=new int[]{-1,0,1,1,1,0,-1,-1};
    public Setting setting;
    public int[][] map;
    
    public Map() {
        NewMap();
    }
    
    public static void NewMap() {
        Setting setting=new Setting(9,9,10);
        EventQueue.invokeLater(()->{
            JFrame frame=new MapFrame(setting);
            frame.setTitle("Minesweeper");
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.setVisible(true);
        });        
    }
}

MapFrame

package map;

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;

import javax.swing.*;
import javax.swing.border.Border;

import java.util.LinkedList;
import java.util.Queue;
import java.util.Random;

public class MapFrame extends JFrame {
    public int row,col,mine;
    public int[][] map;
    public boolean[][] visit;
    public JButton[][] mine_button;
    public static final int[] dx=new int[] {-1,0,1,0,-1,-1,1,1};
    public static final int[] dy=new int[] {0,1,0,-1,-1,1,1,-1};
    
    public int total_visit;
    
    public MapFrame(Setting setting) {
        this.row=setting.row; this.col=setting.col; this.mine=setting.mine; 
        this.map=calc_map(setting);
        mine_button=new JButton[row][col];
        visit=new boolean[row][col];
        total_visit=0;
        int fwidth=row/9*400,fheight=col/9*400+70;
        setSize(fwidth,fheight);
        JPanel TimeJpanel=new JPanel();
        JPanel MapJpanel=new JPanel();
        
        JLabel TimeText=new JLabel("Time : 0");
        TimeJpanel.add(TimeText);
        
        myTimer timer =new myTimer(TimeText);
        Timer timelistener =new Timer(1000,timer);
        timelistener.start();  //开始定时器
        
        MapJpanel.setPreferredSize(new Dimension(row/9*400,col/9*400));
        MapJpanel.setLayout(new GridLayout(row,col));
        for (int i=0;i<row*col;i++) {
            int x=i/this.col;
            int y=i%this.row;
            mine_button[x][y]=new JButton();
            mine_button[x][y].setBackground(new Color(81,168,221));
            mine_button[x][y].addActionListener(new click_listener(x,y));
            MapJpanel.add(mine_button[x][y]);
        }
        
        setLayout(new BorderLayout());
        add(TimeJpanel,BorderLayout.NORTH);
        add(MapJpanel,BorderLayout.SOUTH);        
    }
    
    class click_listener implements ActionListener {
        public int x,y;
        public click_listener(int x,int y) {
            this.x=x; this.y=y;
        }
        
        public void actionPerformed(ActionEvent event) {
            if (visit[this.x][this.y]) return;
            int num=map[this.x][this.y];
            if (num!=-1) {
                mine_button[this.x][this.y].setBackground(Color.WHITE);
                if (num==0) whitebfs(this.x,this.y);
                else {
                    if (!visit[this.x][this.y]) total_visit++; visit[this.x][this.y]=true;
                    mine_button[this.x][this.y].setText(""+num);
                }
                if (total_visit+mine==row*col) {
                    //游戏成功
                    int selection=JOptionPane.showConfirmDialog(null,"你成功排掉所有雷，是否重新开始？","游戏成功",
                            JOptionPane.OK_CANCEL_OPTION,JOptionPane.QUESTION_MESSAGE);
                    if (selection==JOptionPane.YES_OPTION) {
                        //重新开始游戏
                        dispose();
                        Map.NewMap();
                    }
                }
            } else {
                //游戏失败
                mine_button[this.x][this.y].setIcon(new ImageIcon("./Image/mine.jpg"));
                int selection=JOptionPane.showConfirmDialog(null,"你踩到雷了，是否重新开始？","游戏失败",
                        JOptionPane.OK_CANCEL_OPTION,JOptionPane.QUESTION_MESSAGE);
                if (selection==JOptionPane.YES_OPTION) {
                    //重新开始游戏    
                    dispose();
                    Map.NewMap();
                }
            }
        }
    
        public void whitebfs(int x,int y) {
             Queue<Integer> q=new LinkedList<>();
             q.offer(x*col+y);
             while (q.size()>0) {
                 int now=q.poll();
                 x=now/col; y=now%col;
                 if (!visit[x][y]) total_visit++; visit[x][y]=true;
                 mine_button[x][y].setBackground(Color.WHITE);
                 around(x,y);
                 for (int i=0;i<4;i++) {
                     int tx=x+dx[i],ty=y+dy[i];
                     if (tx<0 || tx>=row || ty<0 || ty>=col) continue;
                     if (visit[tx][ty]) continue;
                     if (map[tx][ty]!=0) continue;
                     q.offer(tx*col+ty);
                 }
             }
        }
        
        public void around(int x,int y) {
            for (int i=0;i<8;i++) {
                int tx=x+dx[i],ty=y+dy[i];
                if (tx<0 || tx>=row || ty<0 || ty>=col) continue;
                if (map[tx][ty]>0) {
                    if (!visit[tx][ty]) total_visit++; visit[tx][ty]=true;
                    mine_button[tx][ty].setBackground(Color.WHITE);
                    if (map[tx][ty]>0)mine_button[tx][ty].setText(""+map[tx][ty]);
                }
            }
        }
    }
    
    /**
     * 计时器
     */
    class myTimer implements ActionListener {
        JLabel text;
        long start;
        public myTimer(JLabel text) {
            this.text=text;
            start=System.currentTimeMillis();
        }
        public void actionPerformed(ActionEvent event) {
            text.setText("Time : "+(System.currentTimeMillis()-start)/1000);
        }
    }
    
    /**
     * 计算map数字大小
     */
    public int[][] calc_map(Setting setting) {
        int[][] map=new int[setting.row+2][setting.col+2];
        for (int i=0;i<=setting.row+1;i++)
            for (int j=0;j<=setting.col+1;j++)
                map[i][j]=0;
        
        int now_mine=0;
        Random rand=new Random(System.currentTimeMillis());
        while (now_mine<setting.mine) {
            int mine_x=rand.nextInt(setting.row);
            int mine_y=rand.nextInt(setting.col);
            if (map[mine_x][mine_y]==0) {
                map[mine_x][mine_y]=-1;
                now_mine++;
            }
        }
        
        for (int i=1;i<=setting.row;i++)
            for (int j=1;j<=setting.col;j++) {
                if (map[i][j]==-1) continue;
                for (int k=0;k<8;k++) map[i][j]+=(map[i+dx[k]][j+dy[k]]==-1 ? 1 : 0);
            }    
        
        return map;
    }
}