sweepbomb.java

模拟扫雷游戏

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

//本程序实现了扫雷游戏的基本操作,包括中键打开周围8个格,但还有待不断完善
class MyButton extends JButton{       // 按钮类继承自 JButton
	public int x, y;                    //坐标
	private boolean isBomb = false;      //是否是雷   
	private boolean isFlaged = false;    //是否设置为旗帜
	private boolean isOpened = false;    //是否作键打开
	private int bombNumber = 0;          //周围8个格的地雷数量
	MyButton(int x, int y) {
		this.x = x;
		this.y = y;
		}
	public void Init() {                  //初始化
		isBomb = false;
		isFlaged = false;
		isOpened = false;	
	}
	public void setBomb() { isBomb = true; }
	public void setFlaged() { isFlaged = true; }
	public void deleteFlag() { isFlaged = false; }
	public void setOpened() { isOpened = true; }
	public void setBombNumber(int bombNumber) { this.bombNumber = bombNumber;} 
	public boolean isBomb() { return isBomb; }
	public boolean isFlaged() { return isFlaged; }
	public boolean isOpened() { return isOpened; }
	public int getBombNumber() { return bombNumber; }	
	public String getBombNumber(int i) {
		Integer bNumber = new Integer(bombNumber);
		return bNumber.toString();
		}
	}
 
public class SweepBomb extends MouseAdapter{
	final int Rows = 10, Columns = 10, TotalBomb = 20; //设置大小和地雷数
	int bombNow;                                      //当前地雷数量
	private boolean gameOver = false;                 //游戏失败标记
	private static Random rand = new Random();        //随机数埋雷
	JFrame sweepFrame;                                //以下为界面设计
	JPanel panel1, panel2;
	JButton start;
	JLabel label;
	JTextField textl1, textl2;
	MyButton[][] sweepBombButton = new MyButton[Rows][Columns];
  
	SweepBomb() {
		sweepFrame = new JFrame("扫雷游戏");
		sweepFrame.setBounds(100, 0, 60*Columns, 60*Rows);
		panel1 = new JPanel();
 	    panel2 = new JPanel();
 	    start = new JButton("重新开始");
 	    start.addMouseListener(this);
 	    label = new JLabel("雷数");
 	    textl1 = new JTextField(new Integer(TotalBomb).toString());
 	    textl2 = new JTextField("小心地雷");
 	    panel1.setLayout(new FlowLayout());
	 	panel2.setLayout(new GridLayout(Rows, Columns, 0, 0));
	 	panel1.add(start);
	 	panel1.add(label);
	 	panel1.add(textl1);
	 	panel1.add(textl2);
		
	 	for(int i = 0; i < Rows; i++) {
	 		for(int j = 0; j < Columns; j++) {
	 			sweepBombButton[i][j] = new MyButton(i, j);
	 			sweepBombButton[i][j].addMouseListener(this);		
	 			panel2.add(sweepBombButton[i][j]);
	 			}
	 	}
	 	
	 	sweepFrame.setLayout(new BorderLayout(0,0));
		sweepFrame.add(panel1,BorderLayout.NORTH);
		sweepFrame.add(panel2,BorderLayout.CENTER);
		sweepFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);	
		sweepFrame.setVisible(true);
		startGame();             //开始游戏
	}
	
	public void Init() {                //将每个按键初始化
		for(int i = 0; i < Rows; i++) {
			for(int j = 0; j < Columns; j++) {
				sweepBombButton[i][j].Init();
				sweepBombButton[i][j].setForeground(Color.black);
				sweepBombButton[i][j].setText("");
				}
			}
		}
	
	public void berryBomb() {     //随机埋地雷,地雷数指定
		bombNow = TotalBomb;
		for(int beryBomb = TotalBomb; beryBomb > 0; beryBomb--){
			int i,j;
			do {
				i = rand.nextInt(Rows);
			    j = rand.nextInt(Columns);
				} while(sweepBombButton[i][j].isBomb());
			sweepBombButton[i][j].setBomb();
			}
	}

	public int getBombNumber(int x, int y) {   //查找周围的地雷总数
		int sum = 0;
		if(x - 1 >= 0 && y - 1 >= 0 && (sweepBombButton[x-1][y-1].isBomb())) 
			sum++;
		if(x - 1 >= 0 && (sweepBombButton[x-1][y].isBomb())) 
			sum++;
		if(x - 1 >= 0 && y + 1 < Columns && (sweepBombButton[x-1][y+1].isBomb())) 
			sum++;
		if(y - 1 >= 0 && (sweepBombButton[x][y-1].isBomb())) 
			sum++;
		if(y + 1 < Columns && (sweepBombButton[x][y+1].isBomb())) 
			sum++;
		if(x + 1 < Columns && y - 1 >= 0 && (sweepBombButton[x+1][y-1].isBomb())) 
			sum++;
		if(x + 1 < Columns && (sweepBombButton[x+1][y].isBomb())) 
			sum++;
		if(x + 1 < Columns && y + 1 < Columns && (sweepBombButton[x+1][y+1].isBomb())) 
			sum++;
		return sum;
	}
	
	public void startGame() {  //开始游戏
		gameOver = false;       
		berryBomb();             //重新埋地雷
		label.setText("雷数");
 	    textl1.setText(new Integer(TotalBomb).toString());
 	    textl2.setText("小心地雷");
	 	for(int i = 0; i < Rows; i++) {
	 		for(int j = 0; j < Columns; j++) {
	 			if(!sweepBombButton[i][j].isBomb())
	 				sweepBombButton[i][j].setBombNumber(this.getBombNumber(i, j));
	 		}
	 	}		
	}
	
	public void blankAera(int x, int y) { //左键按到0,打开一片为0的区域,采用递归法
		if(sweepBombButton[x][y].getBombNumber() == 0 && 
		  (!sweepBombButton[x][y].isFlaged()) &&(!sweepBombButton[x][y].isOpened()))   {
			sweepBombButton[x][y].setForeground(Color.blue);
			sweepBombButton[x][y].setText("0");
			sweepBombButton[x][y].setOpened();
			if(x-1 >= 0) blankAera(x-1, y);
			if(x+1 < Columns) blankAera(x+1, y);
			if(y - 1 >=0) blankAera(x, y-1);
			if(y + 1 < Rows) blankAera(x, y+1);
			}
	}
	
	//以下两个函数用于实现中键操作
	public boolean aroundEqual(int x, int y) {  //查找周围8个格的红旗数量
		int sum = 0;
		if(x - 1 >= 0 && y - 1 >= 0 && (sweepBombButton[x-1][y-1].isFlaged())) 
			sum++;
		if(x - 1 >= 0 && (sweepBombButton[x-1][y].isFlaged())) 
			sum++;
		if(x - 1 >= 0 && y + 1 < Columns && (sweepBombButton[x-1][y+1].isFlaged())) 
			sum++;
		if(y - 1 >= 0 && (sweepBombButton[x][y-1].isFlaged())) 
			sum++;
		if(y + 1 < Columns && (sweepBombButton[x][y+1].isFlaged())) 
			sum++;
		if(x + 1 < Columns && y - 1 >= 0 && (sweepBombButton[x+1][y-1].isFlaged())) 
			sum++;
		if(x + 1 < Columns && (sweepBombButton[x+1][y].isFlaged())) 
			sum++;
		if(x + 1 < Columns && y + 1 < Columns && (sweepBombButton[x+1][y+1].isFlaged())) 
			sum++;
		return sum == sweepBombButton[x][y].getBombNumber();	
	}
	
		
	public void openAround(int x, int y) {  
		//打开周围8个格,遇到是地雷但没有标记红旗则游戏结束
		for(int i = x-1; i <= x+1; i++) {
			for(int j = y-1; j <= y+1; j++) {
				if(i >= 0 && i < Rows && j >= 0 && j < Columns) {
					if(sweepBombButton[i][j].isBomb()) {
						if(!sweepBombButton[i][j].isFlaged()) {
							sweepBombButton[i][j].setForeground(Color.black);
							sweepBombButton[i][j].setText("*");
							gameOver();
							gameOver = true;
						}
					}
					else {
						sweepBombButton[i][j].setOpened();
						sweepBombButton[i][j].setForeground(Color.blue);
						sweepBombButton[i][j].setText(sweepBombButton[i][j].getBombNumber(1));
						}
					}
				}
		}
	}
	
	public void gameOver() {  //游戏结束,显示所有地雷
		textl2.setText("很遗憾，你输了！");
		for(int i = 0; i < Rows; i++) {
			for(int j = 0; j < Columns; j++) {
				if(sweepBombButton[i][j].isBomb()) {
					sweepBombButton[i][j].setForeground(Color.black);
					sweepBombButton[i][j].setText("*");	
				}
					
			}
		}
	}
	public boolean isWin() {   //所有按键都打开则获胜,地雷扫出获胜
		if(bombNow != 0) 
			return false;
		for(int i = 0; i < Rows; i++) {
			for(int j = 0; j < Columns; j++) {
				if((!sweepBombButton[i][j].isOpened()) && (!sweepBombButton[i][j].isFlaged()))
					return false;
			}
		}
		return true;
	}
		        
	public void mouseClicked(MouseEvent e) {   //鼠标操作响应
		if(e.getSource() == start){     //按动重新开始按钮则重新开始游戏
			Init();
			startGame();
		}
		else {
			if(!gameOver && !isWin()){   //没赢也没输的情况下
				int i = ((MyButton)e.getSource()).x;   //找到对应按键
				int j = ((MyButton)e.getSource()).y;
				if(e.getButton() == e.BUTTON1) {        //如果按下左键
		              if(sweepBombButton[i][j].isBomb()){  //踩雷的话结束游戏
		            	 gameOver();
		            	 gameOver = true;
		             	 }
		              else {                            //否则打开按键
		            	  int bombAround = sweepBombButton[i][j].getBombNumber();
		            	  if(bombAround == 0){     //按键数为0打开一片为0的区域
		            		  blankAera(i, j);
		            		  }
		            	  else {
		            		  Integer bombNumber = new Integer(bombAround);
		            		  sweepBombButton[i][j].setForeground(Color.blue);
			            	  sweepBombButton[i][j].setText(bombNumber.toString());
			            	  sweepBombButton[i][j].setOpened();
			            	  }
		            	  }
		              }
		         else if(e.getButton() == e.BUTTON3) {   //如果按下右键
		        	if(!sweepBombButton[i][j].isOpened()){   //已经打开的话没反应
		        		if(sweepBombButton[i][j].isFlaged()){//已经插红旗的话变成问号
			         		sweepBombButton[i][j].deleteFlag();//取消设置红旗
			         		sweepBombButton[i][j].setForeground(Color.green);
			         		sweepBombButton[i][j].setText("?");
			         		bombNow++;                        //当前地雷数增加
			         		textl1.setText((new Integer(bombNow).toString()));	
			         	}
			         	else {
			         		sweepBombButton[i][j].setFlaged();  //没有插红旗则插上红旗
				        	 sweepBombButton[i][j].setForeground(Color.red);
				        	 sweepBombButton[i][j].setText("旗");
				        	 bombNow--;                        //当前地雷数减小
				        	 textl1.setText((new Integer(bombNow).toString()));		
			         	}			
		        	}					         			        	 
		         }
		         else if(e.getButton() == e.BUTTON2) {       //如果在打开的按键上按下中键
		        	 if(sweepBombButton[i][j].isOpened()) {  
		        		 if(aroundEqual(i, j)) {   //周围标出地雷数等于实际地雷数
				         		openAround(i, j);      //打开周围8个
				         		}
		        		 }		         	
		         	}
				if(isWin()) {
					textl2.setText("恭喜你赢了!");
				}
			}
		}	
	}

	public static void main(String[] args) {
		SweepBomb sweepBomb = new SweepBomb();
	}

}