package com.test.swing;
 
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
 
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
 
/**
 * 這個是一個簡單的掃雷例子，剛接觸swing編寫的，適合新手練習
 * 該程序使用setBounds（x,y,w,h）對控件布局
 * 做法參考win xp自帶的掃雷，當然還寫功能沒做出來，
 * 另外做出來的功能有些還存在bug
 * 
 * @author Ping_QC
 */
public class Test extends JFrame implements ActionListener, Runnable,
 MouseListener {
 
 private static final long serialVersionUID = -2417758397965039613L;
 private final int EMPTY = 0;
 private final int MINE = 1;
 private final int CHECKED = 2;
 private final int MINE_COUNT = 10; // 雷的個數
 private final int BUTTON_BORDER = 50; // 每個點的尺寸
 private final int MINE_SIZE = 10; // 界面規格, 20x20
 private final int START_X = 20; // 起始位置x
 private final int START_Y = 50; // 起始位置y
 
 private boolean flag;
 private JButton[][] jb;
 private JLabel jl;
 private JLabel showTime;
 private int[][] map;
 /**
 * 檢測某點周圍是否有雷，周圍點的坐標可由該數組計算得到
 */
 private int[][] mv = { { -1, 0 }, { -1, 1 }, { 0, 1 }, { 1, 1 }, { 1, 0 },
 { 1, -1 }, { 0, -1 }, { -1, -1 } };
 
 /**
 * 隨機產生設定個數的雷
 */
 public void makeMine() {
 int i = 0, tx, ty;
 for (; i < MINE_COUNT;) {
 tx = (int) (Math.random() * MINE_SIZE);
 ty = (int) (Math.random() * MINE_SIZE);
 if (map[tx][ty] == EMPTY) {
 map[tx][ty] = MINE;
 i++; // 不記重復產生的雷
 }
 }
 }
 
 /**
 * 將button數組放到frame上，與map[][]數組對應
 */
 public void makeButton() {
 for (int i = 0; i < MINE_SIZE; i++) {
 for (int j = 0; j < MINE_SIZE; j++) {
 jb[i][j] = new JButton();
 // if (map[i][j] == MINE)
 // jb[i][j].setText(i+","+j);
 
 // listener add
 jb[i][j].addActionListener(this);
 jb[i][j].addMouseListener(this);
 
 jb[i][j].setName(i + "_" + j); // 方便點擊是判斷是點擊了哪個按鈕
 // Font font = new Font(Font.SERIF, Font.BOLD, 10);
 // jb[i][j].setFont(font);
 // jb[i][j].setText(i+","+j);
 jb[i][j].setBounds(j * BUTTON_BORDER + START_X, i
  * BUTTON_BORDER + START_Y, BUTTON_BORDER, BUTTON_BORDER);
 this.add(jb[i][j]);
 }
 }
 }
 
 public void init() {
 
 flag = false;
 
 jl.setText("歡迎測試，一共有" + MINE_COUNT + "個雷");
 jl.setVisible(true);
 jl.setBounds(20, 20, 500, 30);
 this.add(jl);
 
 showTime.setText("已用時：0 秒");
 showTime.setBounds(400, 20, 100, 30);
 this.add(showTime);
 
 makeMine();
 makeButton();
 this.setSize(550, 600);
 this.setLocation(700, 100);
 this.setResizable(false);
 this.setDefaultCloseOperation(EXIT_ON_CLOSE);
 this.setVisible(true);
 }
 
 public Test(String title) {
 super(title);
 
 this.setLayout(null); //不使用布局管理器，每個控件的位置用setBounds設定
 
 jb = new JButton[MINE_SIZE][MINE_SIZE];
 jl = new JLabel();
 showTime = new JLabel();
 map = new int[MINE_SIZE][MINE_SIZE]; // 將按鈕映射到數組中
 }
 
 public static void main(String[] args) {
 Test test = new Test("Hello Miner!");
 test.init();
 test.run();
 }
 
 @Override
 public void actionPerformed(ActionEvent e) {
 
 Object obj = e.getSource();
 int x, y;
 if ((obj instanceof JButton) == false) {
 showMessage("錯誤", "內部錯誤");
 return;
 }
 String[] tmp_str = ((JButton) obj).getName().split("_");
 x = Integer.parseInt(tmp_str[0]);
 y = Integer.parseInt(tmp_str[1]);
 
 if (map[x][y] == MINE) {
 showMessage("死亡", "你踩到地雷啦~~~");
 flag = true;
 showMine();
 return;
 }
 dfs(x, y, 0);
 
 checkSuccess();
 }
 
 /**
 * 每次點擊完后，判斷有沒有把全部雷都找到 通過計算狀態為enable的按鈕的個數來判斷
 */
 private void checkSuccess() {
 int cnt = 0;
 for (int i = 0; i < MINE_SIZE; i++) {
 for (int j = 0; j < MINE_SIZE; j++) {
 if (jb[i][j].isEnabled()) {
  cnt++;
 }
 }
 }
 if (cnt == MINE_COUNT) {
 String tmp_str = showTime.getText();
 tmp_str = tmp_str.replaceAll("[^0-9]", "");
 showMessage("勝利", "本次掃雷共用時：" + tmp_str + "秒");
 flag = true;
 showMine();
 }
 }
 
 private int dfs(int x, int y, int d) {
 map[x][y] = CHECKED;
 int i, tx, ty, cnt = 0;
 for (i = 0; i < 8; i++) {
 tx = x + mv[i][0];
 ty = y + mv[i][1];
 if (tx >= 0 && tx < MINE_SIZE && ty >= 0 && ty < MINE_SIZE) {
 if (map[tx][ty] == MINE) {
  cnt++;// 該點附近雷數統計
 } else if (map[tx][ty] == EMPTY) {
  ;
 } else if (map[tx][ty] == CHECKED) {
  ;
 }
 }
 }
 if (cnt == 0) {
 for (i = 0; i < 8; i++) {
 tx = x + mv[i][0];
 ty = y + mv[i][1];
 if (tx >= 0 && tx < MINE_SIZE && ty >= 0 && ty < MINE_SIZE
  && map[tx][ty] != CHECKED) {
  dfs(tx, ty, d + 1);
 }
 }
 } else {
 jb[x][y].setText(cnt + "");
 }
 jb[x][y].setEnabled(false);
 return cnt;
 }
 
 /**
 * 在jl標簽上顯示一些信息
 * 
 * @param title
 * @param info
 */
 private void showMessage(String title, String info) {
 jl.setText(info);
 System.out.println("in functino showMessage() : " + info);
 }
 
 public void run() {
 int t = 0;
 while (true) {
 if (flag) {
 break;
 }
 try {
 Thread.sleep(1000);
 } catch (InterruptedException e) {
 e.printStackTrace();
 }
 t++;
 showTime.setText("已用時：" + t + " 秒");
 }
 // showMine();
 }
 
 private void showMine() {
// Icon iconMine = new ImageIcon("e:/mine.jpg");
 for (int i = 0; i < MINE_SIZE; i++) {
 for (int j = 0; j < MINE_SIZE; j++) {
 if (map[i][j] == MINE) {
  jb[i][j].setText("#");
//  jb[i][j].setIcon(iconMine);
 }
 }
 }
 }
 
 @Override
 public void mouseClicked(MouseEvent e) {
 if (e.getButton() == 3) {
 Object obj = e.getSource();
 if ((obj instanceof JButton) == false) {
 showMessage("錯誤", "內部錯誤");
 return;
 }
 String[] tmp_str = ((JButton) obj).getName().split("_");
 int x = Integer.parseInt(tmp_str[0]);
 int y = Integer.parseInt(tmp_str[1]);
 if ("{1}quot;.equals(jb[x][y].getText())) {
 jb[x][y].setText("");
 } else {
 jb[x][y].setText("{1}quot;);
 }
 /* if(jb[x][y].getIcon() == null){
 jb[x][y].setIcon(new ImageIcon("e:/flag.jpg"));
 }else{
 jb[x][y].setIcon(null);
 }*/
 }
 }
 
 @Override
 public void mousePressed(MouseEvent e) {
 // TODO Auto-generated method stub
 
 }
 
 @Override
 public void mouseReleased(MouseEvent e) {
 // TODO Auto-generated method stub
 
 }
 
 @Override
 public void mouseEntered(MouseEvent e) {
 // TODO Auto-generated method stub
 
 }
 
 @Override
 public void mouseExited(MouseEvent e) {
 // TODO Auto-generated method stub
 
 }
}