mine.java

用java 做的扫雷游戏,用了递归算法,原来递归也不难的

package game;

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

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class Mine implements ActionListener{
	private JFrame frame;
	private Container contentPane;
	private int rows;
	private int cols;
	
	private MyButton[][] btn;
	private int sum;//真实地雷数
	
	public void actionPerformed(ActionEvent e){
		for(int i=0;i<rows;i++)
			for(int j=0;j<cols;j++){
				//System.out.println(i+" "+j);
				if (e.getSource()==btn[i][j].getBtn()){
					if (btn[i][j].getBtnValue()){
						btn[i][j].getBtn().setText("★");	
						showAll();
					}
					else
						showOne(i,j);
				}
					
			}	
	}
	public void showAll(){
		for(int i=0;i<rows;i++)
			for(int j=0;j<cols;j++)
				if (!btn[i][j].getBtnValue())
					showOne(i,j);
	}
	
	public boolean checkXY(int x,int y ){
		return x>=0 && x<rows && y>=0 && y<cols;
	}	
	public void showOne(int x,int y){
		if(x<0 || x>=rows || y<0 || y>=cols) 
			return;
		if (!btn[x][y].getBtn().isEnabled())
			return;
			
		int countLei=0;
		if (checkXY(x-1,y-1) && btn[x-1][y-1].getBtnValue())
			countLei++;
		if (checkXY(x-1,y) && btn[x-1][y].getBtnValue())
			countLei++;
		if (checkXY(x-1,y+1) && btn[x-1][y+1].getBtnValue())
			countLei++;
		if (checkXY(x,y-1) && btn[x][y-1].getBtnValue())
			countLei++;
		if (checkXY(x,y+1) && btn[x][y+1].getBtnValue())
			countLei++;
		if (checkXY(x+1,y-1) && btn[x+1][y-1].getBtnValue())
			countLei++;
		if (checkXY(x+1,y) && btn[x+1][y].getBtnValue())
			countLei++;
		if (checkXY(x+1,y+1) && btn[x+1][y+1].getBtnValue())
			countLei++;
		btn[x][y].getBtn().setEnabled(false);
		if (countLei==0){
			btn[x][y].getBtn().setText("");
			showOne(x-1,y-1);
			showOne(x-1,y);
			showOne(x-1,y+1);
			showOne(x,y-1);
			showOne(x,y+1);
			showOne(x+1,y-1);
			showOne(x+1,y);
			showOne(x+1,y+1);
		}
		else {
			btn[x][y].getBtn().setText(countLei+"");
		}	
		
			
	}
	public Mine(int rows,int cols,int sum){
		this.rows=rows;
		this.cols=cols;
		this.sum=sum;
		frame=new JFrame();
		frame.setSize(rows*45+40,cols*30+40);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		contentPane = frame.getContentPane();
		initGUI();
	}
	public void initGUI(){
		contentPane.setLayout(new BorderLayout());
		btn = new MyButton[rows][cols];
		for(int i=0;i<rows;i++)
			for(int j=0;j<cols;j++){
				
				btn[i][j]=new MyButton();

				btn[i][j].setBtn(new JButton());
				btn[i][j].setBtnValue(false);
				btn[i][j].setFlag(false);
				btn[i][j].setFlag1(false);
				btn[i][j].getBtn().setText("■");
			}
		JPanel p=new JPanel(new GridLayout(rows,cols));
		
		for(int i=0;i<rows;i++)
			for(int j=0;j<cols;j++){
				p.add(btn[i][j].getBtn());
				btn[i][j].getBtn().addActionListener(this);
			}
		contentPane.add(p,BorderLayout.CENTER);
		int intx,inty,countx;
		countx=0;
		
		while (true){
			intx = (int)(Math.random()*rows);
			inty = (int)(Math.random()*cols);
			//System.out.print(intx+" "+inty);
			if (btn[intx][inty].getBtnValue()==false){
				btn[intx][inty].setBtnValue(true);
				countx++;
				if (countx>=sum) 
					break;
			}
		}
		
	}
	public void go(){
		Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
		frame.setLocation((int)(d.getWidth()-frame.getWidth())/2,(int)(d.getHeight()-frame.getHeight())/2);
		frame.setVisible(true);
	}
	public static void main(String[] args){
		(new Mine(10,10,10)).go();
	}
	
}