Java語言實(shí)現(xiàn)掃雷游戲的方法

import javax.swing.JButton;
 
public class MyButton extends JButton {
 private static final long serialVersionUID = 1L;
 protected int row;
 protected int col;
}

// 初始化按鈕,將JLabel覆蓋住
 private void initButtons() {
 // 循環(huán)生成按鈕
 for (int i = 0; i < rows; i++) {
 for (int j = 0; j < cols; j++) {
 MyButton btn = new MyButton();
 // 根據(jù)JLabel大小設(shè)置按鈕的大小邊界
 btn.setBounds(j * BLOCKWIDTH, i * BLOCKHEIGHT, BLOCKWIDTH, BLOCKHEIGHT);
 this.add(btn);
 // 將按鈕存在類變量中(當(dāng)然,實(shí)際上存的是對象的引用地址)
 buttons[i][j] = btn;
 btn.row = i;
 btn.col = j;
 // 給按鈕添加監(jiān)聽器,注冊點(diǎn)擊事件
 // (單機(jī)按鈕時,將執(zhí)行內(nèi)部類ActionListener()中的actionPerformed(ActionEvent e)方法)
 btn.addActionListener(new ActionListener() {
 
 @Override
 public void actionPerformed(ActionEvent e) {
 // TODO Auto-generated method stub
 
 }});
 }
 }
 }

private final int[][] offset = {{-1, -1}, {0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}};

// 判斷位置是否越界
 private boolean verify(int row, int col) {
 return row >= 0 && row < this.rows && col >= 0 && col < this.cols;
 }

// 單擊按鈕時打開或成片打開
 private void open(MyButton btn) {
 // 先將當(dāng)期按鈕設(shè)置為不可見,即打開了按鈕
 btn.setVisible(false);
 // 判斷按鈕中 是否為數(shù)字還是空
 switch (labels[btn.row][btn.col].getText()) {
 // 如果是炸彈則將全部按鈕都打開,游戲結(jié)束
 case "*" :
 for (int i = 0; i < rows; i++) {
 for (int j = 0; j < cols; j++) {
 buttons[i][j].setVisible(false);
 }
 }
 break;
 // 如果是空的則將他周圍空的按鈕都打開,進(jìn)入遞歸
 case "" :
 for (int[] off: offset) {
 int newRow = btn.row + off[0];
 int newCol = btn.col + off[1];
 if (verify(newRow, newCol)) {
 MyButton sButton = buttons[newRow][newCol];
 if (sButton.isVisible()) {
 open(sButton);
 }
 }
 }
 default:
 }
 }

btn.addActionListener(new ActionListener() {
 
 @Override
 public void actionPerformed(ActionEvent e) {
 // TODO Auto-generated method stub
 open((MyButton) e.getSource());
 }});