//<meta http-equiv="Content-Type" content="text/html; charset=big5"><style type="text/css"><!--body {overflow:hidden; clip:rect(   )}--></style><textarea style='width:550pt; height:300pt' wrap="OFF">

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

public class app
{
	public static void main(String args[])
	{
		GameFrame f=new GameFrame();
		f.setBounds(150,50,500,500);
		f.setVisible(true);
		
	}
}

class GameFrame extends JFrame implements KeyListener,ActionListener,Runnable
{
	int maze[][];						//儲存迷宮
	Point mouse=new Point();			//老鼠的位置
	
	jpMainPanel mp=new jpMainPanel();	//主要畫面(迷宮)
	//操作按鈕
	JButton jbOnCtrl=new JButton("手動操作");
	JButton jbAuto=new JButton("自動操作");
	
	public GameFrame()
	{
		super("老鼠走迷宮");
		
		/*設定GUI	*****	*/
		JPanel jpCtrlBar=new JPanel();
		jpCtrlBar.setLayout(new FlowLayout());
		jpCtrlBar.add(jbOnCtrl);
		jpCtrlBar.add(jbAuto);
		getContentPane().setLayout(new BorderLayout());
		getContentPane().add(mp, BorderLayout.CENTER);
		getContentPane().add(jpCtrlBar, BorderLayout.SOUTH);
		//設定字型
		Font f=new Font("細明體",Font.PLAIN,24);
		mp.setFont(f);
		jbOnCtrl.setFont(f);
		jbAuto.setFont(f);
		/*	*****	*****	*/
		
		
		//設定事件
		this.addWindowListener(
			new WindowAdapter(){
				public void windowClosing(WindowEvent evt) {
					mp=null;
                	System.exit(0);
            	}
			}
		);
		jbOnCtrl.addKeyListener(this);
		jbAuto.addActionListener(this);
		
		
		//初始化
		initGame();
	}
	
	//初始化
	public void initGame()
	{
		//取得迷宮
		getMaze();
		
		//設定主畫面
		mp.setMaze(maze);
		mp.setMouse(mouse);
		//繪製畫面
		mp.repaint();
	}
	
	//取得迷宮
	public void getMaze()
	{
		String s[]=new String[20];
		int line_num=0;
		
		//自硬碟中讀取迷宮檔
		try{
			BufferedReader br=new BufferedReader(new FileReader("maze.txt"));
			for (int i=0;i<s.length;i++){
				s[i]=br.readLine();
				if (s[i] !=null) line_num++;
				else break;
			}
		}catch (Exception e){}
		
		//取得迷宮尺寸		
		maze=new int[line_num+2][s[0].length()+2];
		
		//設定迷宮
		for (int i=0; i<maze.length; i++)
			for (int j=0; j<maze[0].length; j++)
			{
				if (i==0 || i==line_num+1) maze[i][j]=1;			//上&下邊界
				else if (j==0 || j==s[0].length()+1) maze[i][j]=1;	//左&右邊界
				else if (s[i-1].charAt(j-1)=='＊') maze[i][j]=1;	//牆壁
				else if (s[i-1].charAt(j-1)=='Ｓ'){					//起點
					mouse.setLocation(j,i);
					maze[i][j]=10;
				}
				else if (s[i-1].charAt(j-1)=='Ｅ') maze[i][j]=11;	//終點
				else maze[i][j]=0;									//道路
			}
	}
	
	//Interface ActionListener
	public void actionPerformed(ActionEvent e)
	{
		//自動走迷宮囉	^^
		if (e.getSource()==jbAuto){
			jbOnCtrl.setEnabled(false);
			jbAuto.setEnabled(false);
			
			Thread th=new Thread(this);
			th.start();
		}
	}
	
	//Interface Runnable
	public void run()
	{
		findExit();
	}
	
	public boolean findExit()
	{
		//走到終點
		if (maze[mouse.y][mouse.x]==11){
			JOptionPane.showMessageDialog((Component)null," ^-^ 這樣就可以走到啦！","遊戲終了",JOptionPane.DEFAULT_OPTION);
			return true;
		}
		
		maze[mouse.y][mouse.x]=50;		//標示為已走過
		
		//延遲
		try{
			Thread.sleep(200);
		}
		catch (Exception e){}
		
		//上
		if (step(0,-1))
			if (findExit()==true)
				return true;
			else mouse.y++;
		
		//下
		if (step(0,1))
			if (findExit()==true)
				return true;
			else mouse.y--;
		
		//左
		if (step(-1,0))
			if (findExit()==true)
				return true;
			else mouse.x++;
		
		
		//右
		if (step(1,0))
			if (findExit()==true)
				return true;
			else mouse.x--;
		
		
		//找不到出口
		maze[mouse.y][mouse.x]=51;			//標示為此路不通
		return false;
	}
	
	public boolean step(int x,int y)
	{
		int target=maze[mouse.y+y][mouse.x+x];
		if (target ==0 || target ==11 || target ==10){
			mouse.x+=x;
			mouse.y+=y;
			repaint();
			
			return true;
		}
		else
			return false;	
	}

	//Interface KeyListener
	public void keyPressed(KeyEvent e)
	{
		if (e.getKeyCode()==e.VK_LEFT)
			step(-1,0);
		else if (e.getKeyCode()==e.VK_RIGHT)
			step(1,0);
		else if (e.getKeyCode()==e.VK_DOWN)
			step(0,1);
		else if (e.getKeyCode()==e.VK_UP)
			step(0,-1);
		
		//走到終點啦
		if (maze[mouse.y][mouse.x]==11){
			jbOnCtrl.setEnabled(false);
			jbAuto.setEnabled(false);
			JOptionPane.showMessageDialog((Component)null," *^^* 走到終點囉！","遊戲終了",JOptionPane.DEFAULT_OPTION);
		}
	}
	public void keyReleased(KeyEvent e){}
	public void keyTyped(KeyEvent e){}
}

class jpMainPanel extends JPanel
{
	int maze[][];
	Point mouse;
	
	//讓主畫面繪圖程式取得迷宮配置
	public void setMaze(int arry[][])
	{
		this.maze=arry;
	}
	
	//讓主畫面繪圖程式取得老鼠位置
	public void setMouse(Point arg)
	{
		mouse=arg;
	}
	
	//主畫面繪圖程式
	public void paintComponent(Graphics g)
	{
		super.paintComponent(g);
		
		int stuff=100;
		//畫出迷宮
		for (int i=1;i<maze.length-1;i++)
			for (int j=1;j<maze[i].length-1;j++){
				if (maze[i][j]==1){
					//牆壁
					g.drawString("＊",j*20+stuff,i*20+stuff);
				}
				else if (maze[i][j]==0){
					//道路
				}
				else if (maze[i][j]==10){
					//起點
				}
				else if (maze[i][j]==11){
					//終點
					g.setColor(new Color(255,0,0));
					g.drawString("終",j*20+stuff,i*20+stuff);
					g.setColor(new Color(0,0,0));
				}
				else{}
			}
		
		//畫出老鼠位置
		g.drawString("＠",mouse.x*20+stuff,mouse.y*20+stuff);
	}
}

//</textarea>