java实现汉诺塔小游戏

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

public class Hanoi extends JFrame {
  DrawPanel panel = new DrawPanel(3);
  ButtonPanel panel2 = new ButtonPanel();
  KeyBoardListener keyboardlistener = new KeyBoardListener(panel);
  public Hanoi() {
    this.setFocusable(true);
    panel.setBounds(2,2,2,2);
	panel.setBorder(BorderFactory.createLineBorder(Color.black));
    ButtonPanel.start.addActionListener(new ActionListener() {
	  public void actionPerformed(ActionEvent e) {
	    panel.refresh(3);
	  }
	});
	ButtonPanel.quit.addActionListener(new ActionListener() {
	  public void actionPerformed(ActionEvent e) {
	    int res;
		res = JOptionPane.showConfirmDialog(null,"确定退出?","退出",JOptionPane.YES_NO_OPTION);
		if(res == JOptionPane.YES_OPTION) {
	      System.exit(0);
		}
	  }
	});
	ButtonPanel.help.addActionListener(new ActionListener() {
	  public void actionPerformed(ActionEvent e) {
	    JOptionPane.showMessageDialog(null,"将所有盘子移动到最后一个柱子上，通过键盘上下左右键操作。另外请注意每一关都是有步数限制的");
	  }
	});
    add(panel,BorderLayout.CENTER);
	add(panel2,BorderLayout.EAST);
	this.addKeyListener(keyboardlistener);
	ButtonPanel.start.addKeyListener(keyboardlistener);
	ButtonPanel.help.addKeyListener(keyboardlistener);
	ButtonPanel.quit.addKeyListener(keyboardlistener);
  }
   
  public static void main(String[] args) {
    Hanoi frame = new Hanoi();
	frame.setTitle("汉诺塔");
	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	frame.setSize(500,309);
	frame.setResizable(false);
	frame.setLocationRelativeTo(null);
	frame.setVisible(true);
  }
}

//键盘监听器
class KeyBoardListener extends KeyAdapter {
  DrawPanel panel;
  KeyBoardListener(DrawPanel panel) {
    this.panel = panel;
  }
  
  public void keyPressed(KeyEvent e) {
	int n = e.getKeyCode();
    if(n == 38) {
	  panel.getPlate();
	} else if(n == 40) {
	  panel.setPlate();
	} else if(n == 39) {
	  panel.movePlateRight();
	} else if(n == 37) {
	  panel.movePlateLeft();
	}
  }
  public void keyTyped(KeyEvent e) {
        
  }
  public void keyReleased(KeyEvent e) {
        
  }
}


//图形界面模块
class DrawPanel extends JPanel {
  ArrayList<Plate> plates = new ArrayList<Plate>();//盘子
  static Pillar[] pillars = new Pillar[3];//柱子
  Hand hand = new Hand(1);//抓取工具
  int chosen;//被抓起的盘子id
  int n;//盘子个数
  boolean init;//初始化判断
  int step;//步数
  
  static {
    for(int i=0;i<3;i++) {
	  pillars[i] = new Pillar(i+1);
	}
  }
  
  //构造方法
  DrawPanel(int a) {
	init = true;
	this.refresh(a);
  }
  //刷新
  public void refresh(int a) {
    n = a;
	cleanUp();
	Plate[] temp = new Plate[a];
	int i;
	for(i=1;i<a+1;i++) {
	  temp[i-1] = new Plate(i);
	  temp[i-1].pillarid = 1;
	  temp[i-1].position = a-i+1;
	  pillars[0].count++;
	  pillars[0].plateid[temp[i-1].position] = temp[i-1].id;
	  plates.add(temp[i-1]);
	}
	if(!init) {
	  repaint();
	} else {
	  init = false;
	}
  }
  
  //清空柱子
  public void cleanUp() {
    int i ,j;	
	step = 0;
	hand.pillarid = 1;
	hand.empty = true;
	plates.clear();
	for(i=0;i<3;i++) {
	  for(j=0;j<pillars[i].count;j++) {
		    pillars[i].plateid[j+1] = 0;
		  }
		  pillars[i].count = 0;
	}
  }
  
  //绘图
  public void paintComponent(Graphics g) {
    super.paintComponent(g);
	int x = getWidth();
	int y = getHeight();
	int[] a = {hand.pillarid*x/4-10,hand.pillarid*x/4+10,hand.pillarid*x/4,hand.pillarid*x/4-10};
	int[] b = {10,10,20,10};
	String[] string = new String[]{"一","二","三","四","五","六","七"};
	int i;
	for(i=1;i<4;i++) {
	  g.drawRoundRect(i*x/4-3,y-240,6,250,2,2);
	}
	for(i=0;i<n;i++) {
	  g.fillRoundRect(plates.get(i).pillarid*x/4-plates.get(i).width/2,y-10*plates.get(i).position,plates.get(i).width,10,2,2);
	}
	g.drawPolyline(a,b,a.length);
	g.drawString("步数："+step,10,20);
	g.drawString("第"+string[n-3]+"关",350,20);
  }
  
  //判断超过步数
  void judge() {
    int h = (int)(((Math.pow(2,n)-1)*2-1)*1.5);
    if(step == h) {
	  JOptionPane.showMessageDialog(null,"超过了限制步数，请再接再厉！");
	  refresh(3);
	}
  }
  
  //向右移动
  void movePlateRight() {
    hand.pillarid = hand.pillarid%3+1;
	if(chosen != 0) {
	  plates.get(chosen-1).pillarid = plates.get(chosen-1).pillarid %3+1;
	}
	step++;
    repaint();
	judge();
  }
  //向左移动
  void movePlateLeft() {
    hand.pillarid = (hand.pillarid+1)%3+1;
	if(chosen != 0) {
	  plates.get(chosen-1).pillarid = (plates.get(chosen-1).pillarid+1)%3+1;
	}
	step++;
    repaint();
	judge();
  }
  //放下盘子
  void setPlate() {
    if(!hand.empty) {
	  int m;
	  m = pillars[hand.pillarid-1].plateid[pillars[hand.pillarid-1].count];
	  if(chosen < m||m == 0) {
	    plates.get(chosen-1).position = pillars[hand.pillarid-1].count+1;
		pillars[hand.pillarid-1].plateid[pillars[hand.pillarid-1].count+1] = chosen;
		pillars[hand.pillarid-1].count++;
		chosen = 0;
		hand.empty = true;
		repaint();
		if(pillars[2].count == n) {
		  if(n == 9) {
		    JOptionPane.showMessageDialog(null,"太棒了！你完成了所有关卡！");
			System.exit(0);
		  }
		  JOptionPane.showMessageDialog(null,"恭喜你，成功了！进入下一关！");
		  n++;
		  refresh(n);
		}
	  } 
	}
  }
  //抓起盘子
  void getPlate() {
    if(hand.empty) {
	  int m;
      if(pillars[hand.pillarid-1].count != 0) {
	    m = pillars[hand.pillarid-1].plateid[pillars[hand.pillarid-1].count];
	    plates.get(m-1).position = 25;
		pillars[hand.pillarid-1].plateid[pillars[hand.pillarid-1].count] = 0;
		pillars[hand.pillarid-1].count--;
		chosen = m;
		hand.empty = false;
		repaint();
	  }
    }
  }
}
//按钮模块
class ButtonPanel extends JPanel {
  static JButton help = new JButton("帮助");
  //static JButton setting = new JButton("设置");
  static JButton start = new JButton("重新开始");
  static JButton quit = new JButton("退出");
  static JLabel icon = new JLabel();
  public ButtonPanel() {
    setLayout(new GridLayout(4,1,0,0));
	setBounds(20,0,20,0);
	this.add(icon);
    this.add(start);
	this.add(help);
	this.add(quit);
  }
}
//柱子
class Pillar {
  int id;
  int count;
  int height = 240;
  int width = 6;
  int[] plateid;
  Color color;
  
  Pillar(int n) {
    id = n;
	count = 0;
	plateid = new int[20];
  }
}
//盘子
class Plate {
  int id;
  int height = 10;
  int width;
  int pillarid;
  int position;
  Color color;
  
  Plate(int n) {
    id = n;
    width = 2*(id*5+3);
  }
}
//抓取工具
class Hand {
  int pillarid;
  int[] x = {};
  int[] y = {};
  boolean empty;
  Color color;
  
  Hand(int n) {
    pillarid = n;
	empty = true;
  }
}