【java小游戏】简单扫雷的实现

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
		
	}
}

常量类

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
}

效果图