小游戏：扫雷

package test;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Label;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Random;
  
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
  
public class SaoLei implements MouseListener,ActionListener{
 JPanel p=new JPanel();
 JFrame frame = new JFrame("扫雷");
 @SuppressWarnings("rawtypes")
 JComboBox combobox = new JComboBox();
 JButton reset = new JButton("重新开始");
 Container container = new Container();
  
 //游戏数据结构
 SaoLeiConstant constant = new SaoLeiConstant();
 JButton[][] buttons = new JButton[constant.row][constant.col];//定义按钮
 int[][] counts = new int [constant.row][constant.col];//定义整型数组保存按钮下方雷数
  
 //创建构造方法
 public SaoLei() {
 //显示窗口
 frame.setSize(600,700);//600*700
 frame.setResizable(false);
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 frame.setLayout(new BorderLayout());
  
 //添加重来、选择难度按钮
 addtopButton();
  
 //添加雷区按钮
 addButtons();
  
 //埋雷
 addLei();
  
 //添加雷的计数
 calcNeiboLei();
  
 frame.setVisible(true);
 }
  
 void addtopButton() {
 p.removeAll();
 p.add(reset);
 reset.setBackground(Color.green);
 reset.setOpaque(true);
 reset.addActionListener(this);
 //combobox.addItem("选择难度");
 combobox.addItem("新手难度");
 combobox.addItem("初级难度");
 combobox.addItem("中级难度");
 combobox.addItem("高级难度");
 combobox.addItem("大师难度");
 combobox.setBackground(Color.GREEN);
 combobox.setOpaque(true);
 combobox.addItemListener(new ItemListener(){
  
 @Override
 public void itemStateChanged(ItemEvent e) {
 String item = e.getItem().toString(); 
 if(item == "新手难度") {
  constant.leiCount = 20;
  ResetGame();
 } else if(item == "初级难度") {
  constant.leiCount = 43;
  ResetGame();
 } else if(item == "中级难度"){
  constant.leiCount = 63;
  ResetGame();
 } else if(item == "高级难度"){
  constant.leiCount = 99;
  ResetGame();
 } else if(item == "大师难度") {
  constant.leiCount = 119;
  ResetGame();
 }
  
 }
  
 });
 p.add(combobox);
 frame.add(p,BorderLayout.NORTH);
 //p.add(new Label("总雷数:"+constant.leiCount,Label.CENTER));
 //p.add(new Label("总雷数:"+constant.leiCount,Label.RIGHT));
  
 }
  
  
 /*
 void addnanduButton() {
 nandu.setBackground(Color.green);
 nandu.setOpaque(true);
 nandu.addActionListener(this);
 frame.add(nandu,BorderLayout.WEST);
 }
  
 void addResetButton() {
 reset.setBackground(Color.green);
 reset.setOpaque(true);
 reset.addActionListener(this);
 //reset.addMouseListener(this);
 frame.add(reset,BorderLayout.NORTH); 
 }
 */
  
 void addLei() {
 Random rand = new Random();
 int randRow,randCol;
 for(int i=0; i<constant.leiCount; i++) {
 randRow = rand.nextInt(constant.row);
 randCol = rand.nextInt(constant.col);
 if(counts[randRow][randCol] == constant.LEICODE) {
 i--;
 } else {
 counts[randRow][randCol] = constant.LEICODE;
 //buttons[randRow][randCol].setText("X");
 }
 }
 }
  
 void addButtons() {
 frame.add(container,BorderLayout.CENTER);
 container.setLayout(new GridLayout(constant.row,constant.col));
 for(int i=0;i<constant.row;i++) {
 for(int j=0;j<constant.col;j++) {
 JButton button = new JButton();
 button.setBackground(Color.white);
 button.setOpaque(true);
 button.addActionListener(this);
 button.addMouseListener((MouseListener) this);
 buttons[i][j] = button;
 container.add(button);
 }
 }
 }
  
 void calcNeiboLei() {
 int count;
 for(int i=0;i<constant.row;i++) {
 for(int j=0;j<constant.col;j++) {
 count =0;
 if(counts[i][j] == constant.LEICODE) continue;
 if(i>0 && j>0 && counts[i-1][j-1] == constant.LEICODE) count++;
 if(i>0 && counts[i-1][j] == constant.LEICODE) count++;
 if(i>0 && j<19 &&counts[i-1][j+1] == constant.LEICODE) count++; 
 if(j>0 && counts[i][j-1] == constant.LEICODE) count++;
 if(j<19 && counts[i][j+1] == constant.LEICODE) count++;
 if(i<19 && j>0 && counts[i+1][j-1] == constant.LEICODE) count++;
 if(i<19 && counts[i+1][j] == constant.LEICODE) count++;
 if(i<19 && j<19 && counts[i+1][j+1] == constant.LEICODE) count++;
 counts[i][j] = count;
 buttons[i][j].setMargin(new Insets(0,0,0,0));//让按钮随按钮上的图案变化
 //buttons[i][j].setText(counts[i][j] + "");
 }
 }
 }
  
 @Override
 public void actionPerformed(ActionEvent e) {
  
 JButton button = (JButton)e.getSource();
 if(button.equals(reset)) {
 ResetGame();//重新开始游戏
 } else {
 int count = 0;
 for(int i=0;i<constant.row;i++) {
 for(int j=0;j<constant.col;j++) {
  if(button.equals(buttons[i][j])) {
  count = counts[i][j];
  if(count == constant.LEICODE) {
  loseGame();
  } else {
  openCell(i,j); 
  checkWin();
  }
  return;
  } 
 }
 }
 }
 }
  
 public void mouseClicked(MouseEvent e) {
 JButton button = (JButton)e.getSource();
 if (e.getButton() == MouseEvent.BUTTON3) {//判断鼠标右击动作
 for(int i=0;i<constant.row;i++) {
  for(int j=0;j<constant.col;j++) {
  if(button.equals(buttons[i][j])) {
  if((buttons[i][j].isEnabled() == true)) {
  //buttons[i][j].setEnabled(false);
  buttons[i][j].setMargin(new Insets(0,0,0,0));//让按钮随按钮上的图案变化
  buttons[i][j].setText("？");
  return;
  } 
  }
  }
 } 
 }
 }
  
 void ResetGame() {
 for(int i=0;i<constant.row;i++) {
 for(int j=0;j<constant.col;j++) {
 buttons[i][j].setText("");
 buttons[i][j].setEnabled(true);
 buttons[i][j].setBackground(Color.white);
 counts[i][j] = 0; 
 } 
 }
 addLei();
 calcNeiboLei(); 
 }
  
 void checkWin() {
 for(int i=0;i<constant.row;i++) {
 for(int j=0;j<constant.col;j++) {
 if(buttons[i][j].isEnabled() == true && counts[i][j] != constant.LEICODE ) return; 
 }
 }
 JOptionPane.showMessageDialog(frame,"Yeah,你赢了！"); 
 }
  
 //使用递归方法打开格子
 void openCell(int i, int j) {
 if(buttons[i][j].isEnabled() == false) return;
 buttons[i][j].setBackground(Color.yellow);
 buttons[i][j].setOpaque(true);
 buttons[i][j].setEnabled(false);
 if(counts[i][j] == 0) {
 if(i>0 && j>0 && counts[i-1][j-1] != constant.LEICODE) openCell(i-1,j-1);
 if(i>0 && j<19 && counts[i-1][j] != constant.LEICODE) openCell(i-1,j);
 if(i>0 && j<19 &&counts[i-1][j+1] != constant.LEICODE) openCell(i-1,j+1); 
 if(j>0 && counts[i][j-1] != constant.LEICODE) openCell(i,j-1);
 if(j<19 && counts[i][j+1] != constant.LEICODE) openCell(i,j+1);
 if(i<19 && j>0 && counts[i+1][j-1] != constant.LEICODE) openCell(i+1,j-1);
 if(i<19 && counts[i+1][j] != constant.LEICODE) openCell(i+1,j);
 if(i<19 && j<19 && counts[i+1][j+1] != constant.LEICODE) openCell(i+1,j+1);
 } else {
 buttons[i][j].setMargin(new Insets(0,0,0,0));
 buttons[i][j].setText(counts[i][j] + "");
 }
 }
  
 void loseGame() {
 for(int i=0;i<constant.row;i++) {
 for(int j=0;j<constant.col;j++) {
 int count = counts[i][j];
 if(count == constant.LEICODE) {
  buttons[i][j].setMargin(new Insets(0,0,0,0));
  buttons[i][j].setText("雷");
  buttons[i][j].setBackground(Color.red);
  buttons[i][j].setEnabled(false);
 } else {
  buttons[i][j].setMargin(new Insets(0,0,0,0));
  buttons[i][j].setText(count + "");
  buttons[i][j].setEnabled(false);
   
 }
 }
 }
 JOptionPane.showMessageDialog(frame,"error,你输了！");
 }
  
 public static void main(String[] args) {
 new SaoLei();
 }
  
 @Override
 public void mousePressed(MouseEvent e) {
 // TODO Auto-generated method stub
  
 }
  
 @Override
 public void mouseReleased(MouseEvent e) {
 // TODO Auto-generated method stub
  
 }
  
 @Override
 public void mouseEntered(MouseEvent e) {
 // TODO Auto-generated method stub
  
 }
  
 @Override
 public void mouseExited(MouseEvent e) {
 // TODO Auto-generated method stub
  
 }
}

package test;


    public class SaoLeiConstant {
         final int row = 20;//行数30
         final int col = 20;//列数30
         final int LEICODE = 10;//定义雷下方的数字
         protected int temp = 20;
         protected int leiCount = temp;//雷数30
        }