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

/*按扭類*/

class Bomb extends JButton  
{ 
 
 public int num_x,num_y;       //第幾號方塊 
 public int BombRoundCount;    //周圍雷數 
 public boolean isBomb;        //是否為雷 
 public boolean isClicked;     //是否被點擊 
 public int BombFlag;          //探雷標記
 public boolean isRight;       //是否點擊右鍵
 
 public Bomb(int x,int y) 
 { 
  BombFlag = 0; 
  num_x = x;
  num_y = y; 
  BombRoundCount = 0; 
  isBomb = false; 
  isClicked = false;
  isRight = false;
 }
} 
/*窗口及算法實現類*/

class MainBomb extends JFrame implements ActionListener,MouseListener
{ 
 

 public Label nowBomb;
 public int BlockNum,BombNum,Bomb2,Bomb3,sizex,sizey;                                                //當前方塊數當前雷數
 public JButton start = new JButton(" 開始 "); 
 public Panel MenuPamel = new Panel(); 
 public Panel mainPanel = new Panel(); 
 public Bomb[][] bombButton;
 
 public JList List;
 public final String name[] = {"easy","normal","hard"};
 /*界面設計*/
 
 public MainBomb() 
 {
  super("掃雷游戲  guanchuang制作 2007.5 ");
  BlockNum = 100; 
  BombNum = 10; 
  Bomb2 = Bomb3=10; 
  sizex = 500;
  sizey = 500;
  Container c=getContentPane();
  c.setBackground(Color.gray); 
  c.setLayout(new BorderLayout()); 
 
 
  List = new JList(name);
  List.setVisibleRowCount(1);
  List.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
  MenuPamel.add(List);
  List.addListSelectionListener(
     new ListSelectionListener(){
     	public void valueChanged(ListSelectionEvent Event){
     		if (List.getSelectedIndex()==0){  
     			BlockNum = 100; 
                         BombNum = 10; 
                         Bomb2 = Bomb3=10;
                         sizex = 500;
                          sizey = 500;}
                 if (List.getSelectedIndex()==1){  
     			BlockNum = 150; 
                         BombNum = 20; 
                         Bomb2 =Bomb3= 20;
                        sizex = 650;
                        sizey = 650; }
                 if (List.getSelectedIndex()==2){  
     			BlockNum = 200; 
                         BombNum = 30; 
                         Bomb2 =Bomb3= 30;
                        sizex = 800;
                        sizey = 800; }      
     		}
     	}
  
  
      );


  nowBomb = new Label("當前剩下雷數"+"  "+BombNum+"");

  start.addActionListener(new ActionListener(){ 
    public void actionPerformed(ActionEvent e) 
    {   
      replay();  //重新開始
    } 
   } );

  MenuPamel.add(start); 
  MenuPamel.add(nowBomb); 
  MenuPamel.setLayout(new FlowLayout() );
  c.add(MenuPamel,BorderLayout.NORTH); 
  
  mainPanel.setLayout(new GridLayout( (int)Math.sqrt(BlockNum) , (int)Math.sqrt(BlockNum)) );
 
  bombButton=new Bomb[ (int)Math.sqrt(BlockNum) ][];
  for(int i = 0 ; i < (int)Math.sqrt(BlockNum) ; i++)
  {
   bombButton[ i ]=new Bomb[ (int)Math.sqrt(BlockNum) ];
  }
  for(int i = 0 ; i < (int)Math.sqrt(BlockNum) ; i++ ) 
   for(int j = 0 ; j < (int)Math.sqrt(BlockNum) ; j++ )
   { 
    bombButton[ i ][ j ]=new Bomb(i,j);
    bombButton[ i ][ j ].setForeground( Color.gray); 
    bombButton[ i ][ j ].addActionListener(this); 
    bombButton[ i ][ j ].addMouseListener(this); 
   } 
  for(int i = 0 ; i < (int)Math.sqrt(BlockNum) ; i++ ) 
   for(int j = 0 ; j < (int)Math.sqrt(BlockNum) ; j++ )
    mainPanel.add(bombButton[ i ][ j ]); 
  c.add(mainPanel,BorderLayout.CENTER);
  startBomb();         //布置地雷
  setSize(sizex,sizey);
  setLocation(350,200);
  setResizable(false);
  setVisible(true);
 }
 
  //布置地雷
  public void startBomb()
 {
  for(int i=0;i<BombNum;i++) 
  { 
   int x =(int)(Math.random()*(int)(Math.sqrt(BlockNum)-1));  
   int y =(int)(Math.random()*(int)(Math.sqrt(BlockNum)-1)); 
   
   if(bombButton[ x ][ y ].isBomb==true) 
    i--;
   else 
    bombButton[ x ][ y ].isBomb=true ; 
  } 
 }
 //重新開始
  public void replay() 
 { 
   BombNum = Bomb3;
   nowBomb.setText("當前剩下雷數"+"  "+BombNum+"");

  for(int i = 0 ; i < (int)Math.sqrt(BlockNum) ; i++) 
   for(int j = 0 ; j < (int)Math.sqrt(BlockNum) ; j++)
   { 
    bombButton[ i ][ j ].isBomb=false; 
    bombButton[ i ][ j ].isClicked=false; 
    bombButton[ i ][ j ].isRight=false;
    bombButton[ i ][ j ].BombFlag = 0;
    bombButton[ i ][ j ].setEnabled(true); 
    bombButton[ i ][ j ].setText(""); 
 
   } 
  startBomb();
 } 
 
  /*是否挖完了所有的雷*/
 
 public void isWin() 
 { 
  int findBomb=0;  //找到的地雷數

  for(int i = 0;i < (int)Math.sqrt(BlockNum) ; i++) 
   for(int j = 0;j < (int)Math.sqrt(BlockNum ); j++)
   { 
    if(bombButton[ i ][ j ].isBomb == true && bombButton[ i ][ j ].isRight == true)
     findBomb++; 
   } 
  if( findBomb == BombNum ) 
  { 
   JOptionPane msg = new JOptionPane(); 
   JOptionPane.showMessageDialog(this,"您挖完了所有的雷，您勝利了!","您勝利了",JOptionPane.INFORMATION_MESSAGE); 
  }
 }
 
   /*計算方塊周圍雷數 */
 
 public void CountRoundBomb() 
 { 
  for (int i = 0; i < (int)Math.sqrt(BlockNum); i++) {
   for (int j = 0; j < (int)Math.sqrt(BlockNum); j++) {
    int count = 0;
    //當需要檢測的單元格本身無地雷的情況下,統計周圍的地雷個數
    if (bombButton[ i ][ j ].isBomb != true) { 
     if ( (i - 1 >= 0) && (j - 1 >= 0)) {
      if (bombButton[i - 1][j - 1].isBomb == true) {
       count += 1; //檢測左上方空格是否是地雷
      }
     }
     if ( (i - 1 >= 0)) {
      if (bombButton[i - 1][ j ].isBomb == true) {
       count += 1; //檢測上方空格是否為地雷
      }
     }
     if ( (i - 1 >= 0) && (j + 1 <= (int)Math.sqrt(BlockNum)-1)) {
      if (bombButton[i - 1][j + 1] .isBomb == true) {
       count += 1; //檢測右上方是否為地雷
      }
     }
     if ( (i >= 0) &&(j - 1 >= 0)) {
      if (bombButton[ i ][j - 1] .isBomb == true) {
       count += 1; //檢測左邊是否為地雷
      }
     }
     if ( (i >= 0) && (j + 1 <= (int)Math.sqrt(BlockNum)-1)) {
      if (bombButton[ i ][j + 1].isBomb == true) {
       count += 1; //右邊
      }
     }
     if ( (j - 1 >= 0) && (i + 1 <= (int)Math.sqrt(BlockNum)-1)) {
      if (bombButton[i + 1][j - 1].isBomb == true) {
       count += 1; //左下
      }
     }
     if ( (i + 1 <= (int)Math.sqrt(BlockNum)-1)) {
      if (bombButton[i + 1][ j ].isBomb == true) {
       count += 1; //下
      }
     }
     if ( (j + 1 <= (int)Math.sqrt(BlockNum)-1) && (i + 1 <= Math.sqrt(BlockNum)-1)) {
      if (bombButton[i + 1][j + 1].isBomb == true) {
       count += 1; //右下
      }
     }
     bombButton[ i ][ j ].BombRoundCount = count;
    }
   }
  }
 }
 
  /**當選中的位置為空,則翻開周圍的地圖**/
 
 public void isNull(Bomb[][] bombButton,Bomb ClickecButton) 
 {
  int i,j;
  i=ClickecButton.num_x;