五子棋-主框架类, 程序启动类
代码：
public class StartChessJFrame extends JFrame {private ChessBoard chessBoard;//对战面板private JPanel toolbar;//工具条面板private JButton startButton, backButton, exitButton; //重新开始按钮，悔棋按钮，和退出按钮private JMenuBar menuBar;//菜单栏private JMenu sysMenu;//系统菜单private JMenuItem startMenuItem, exitMenuItem, backMenuItem; //重新开始，退出，和悔棋菜单项public StartChessJFrame() { setTitle("简易版双人对战五子棋");//设置标题 chessBoard= new ChessBoard();// 创建和添加菜单menuBar = new JMenuBar();//初始化菜单栏 sysMenu= new JMenu("系统");//初始化菜单startMenuItem =new JMenuItem("重新开始"); exitMenuItem= new JMenuItem("退出"); backMenuItem= new JMenuItem("悔棋");//初始化菜单项 sysMenu.add(startMenuItem);//将三个菜单项添加到菜单上 sysMenu.add(backMenuItem); sysMenu.add(exitMenuItem); MyItemListener lis = new MBeanListener();//初始化按钮事件监听器内部类this.startMenuItem.addActionListener(lis);//将三个菜单项注册到事件监听器上 backMenuItem.addActionListener(lis);exitMenuItem.addActionListener(lis);}MenuBar.add(sysMenu);//将系统菜单添加到菜单栏上 setJMenuBar(menuBar);// 将 menuBar 设置为菜单栏toolbar =new JPanel();//工具面板栏实例化 startButton= new JButton("重新开始");//三个按钮初始化 backButton= new JButton("悔棋"); exitButton= new JButton("退出"); toolbar.setLayout(new FlowLayout(FlowLayout.LEFT));// 将 工 具 面 板 按 钮 用FlowLayout 布局 toolbar.add(startButton);//将三个按钮添加到工具面板上toolbar.add(backButton);toolbar.add(exitButton);startButton.addActionListener(lis);//将三个按钮注册监听事件backButton.addActionListener(lis);exitButton.addActionListener(lis);add(toolbar,BorderLayout.SOUTH);//将工具面板布局到界面下面 add(chessBoard);//将面板对象添加到窗体上 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置界面关闭事件//setSize(800,800);pack(); // 自适应大小 }private class MyItemListenerimplementsActionListener{//事件监听器内部类public void actionPerformed(ActionEvent e){ Object obj =e.getSource(); // 取得事件源 if(obj == StartChessJFrame.this.startMenuItem || obj== startButton){ // 重新开始// JFiveFrame.this 内部类引用外部类System.out.println("重新开始..."); chessBoard.restartGame();}else if(obj == exitMenuItem || obj== exitButton) { System.exit(0);//结束应用程序 }else if(obj == backMenuItem|| obj == backButton) {// 悔棋System.out.println("悔棋..."); chessBoard.goback(); }}}public static void main(String[] args) { StartChessJFrame f =new StartChessJFrame();// 创建主框架f.setVisible(true);// 显示主框架 }}}
棋子类
代码：
public class Point {private int x; // 棋盘中的 x 索引private int y; // 棋盘中的 y 索引private Color color;//颜色public static final int DIAMETER = 30;//直径 public Point(int x, int y, Color color) {this.x= x;this.y= y;this.color= color;} public int getX(){// 拿到棋盘中的 x 索引 return x; } public int getY(){// 拿到棋盘中的 Y 索引 return y;}public Color getColor(){//得到颜色return color; }}
棋盘类
代码：
public class ChessBoard extends JPanel implements MouseListener {public static final int MARGIN =30; // 边距public static final int GRID_SPAN= 35;// 网格间距public static final int ROWS =15;//棋盘行数public static final int COLS = 15;//棋盘列数Point[] chessList = new Point[(ROWS +1) *(COLS + 1)]; // 初始每个数组元素为 nullboolean isBlack =true;//默然开始是黑棋先下boolean gameOver =false;// 游戏是否结束int chessCount; // 当前棋盘的棋子个数int xIndex, yIndex;// 当前刚下的棋子的索引public ChessBoard() { setBackground(Color.ORANGE);//设置背景颜色为橘黄色addMouseListener(this);// 添加监听器addMouseMotionListener(new MouseMotionListener() {@Overridepublic void mouseMoved(MouseEvent e) {// TODO Auto-generated method stub}@Overridepublic void mouseDragged(MouseEvent e) {// TODO Auto-generated method stubint x1 = (e.getX()- MARGIN +GRID_SPAN/ 2)/ GRID_SPAN; // 将鼠标点击的坐标位置转换成网格索引。int y1 = (e.getY()- MARGIN +GRID_SPAN/ 2)/ GRID_SPAN; if(x1 <0|| x1 >ROWS || y1< 0|| y1> COLS || gameOver || findChess(x1, y1)) setCursor(new Cursor(Cursor.DEFAULT_CURSOR)); // 设置成默认形状elsesetCursor(new Cursor(Cursor.HAND_CURSOR)); // 设置成手型}});}public void paintComponent(Graphics g) { super.paintComponent( g); // 画棋盘 for (int i= 0; i<= ROWS; i++){// 画横线g.drawLine(MARGIN, MARGIN +i *GRID_SPAN,MARGIN +COLS *GRID_SPAN, MARGIN+ i *GRID_SPAN); } for (int i= 0; i<= COLS; i++){// 画直线g.drawLine(MARGIN + i * GRID_SPAN, MARGIN, MARGIN + i * GRID_SPAN, MARGIN+ ROWS *GRID_SPAN);} // 画棋子 for (int i= 0; i< chessCount; i++) { int xPos = (int) (chessList[i].getX() * GRID_SPAN + MARGIN); // 网格交叉点的 x 坐 标int yPos = (int) (chessList[i].getY() *GRID_SPAN+ MARGIN);//网格交叉点的y坐标 g.setColor(chessList[i].getColor());// 设置颜色g.fillOval(xPos - Point.DIAMETER / 2, yPos - Point.DIAMETER /2, Point.DIAMETER, Point.DIAMETER); // 标记最后一个棋子的红矩形框if(i== chessCount - 1) {// 最后一个棋子 g.setColor(Color.red); g.drawRect(xPos - Point.DIAMETER/ 2, yPos - Point.DIAMETER /2, Point.DIAMETER, Point.DIAMETER); }}}public void mousePressed(MouseEvent e){// 鼠标按键在组件上按下时调用。// 游戏已经结束，不能下if(gameOver) return; String colorName = isBlack ? "黑棋" : "白棋";xIndex = (e.getX() - MARGIN + GRID_SPAN / 2) / GRID_SPAN; yIndex= (e.getY()- MARGIN +GRID_SPAN/ 2)/ GRID_SPAN;// 落在棋盘外，不能下 if(xIndex <0|| xIndex >ROWS || yIndex< 0|| yIndex> COLS) return; //x,y 位置已经有棋子存在，不能下 if(findChess(xIndex, yIndex)) return;Point ch = new Point(xIndex, yIndex, isBlack ? Color.black: Color.white); chessList[chessCount++]= ch; repaint();if(isWin()){ // 给出胜利信息,不能再继续下棋 String msg= String.format("恭喜，%s 赢了！", colorName); JOptionPane.showMessageDialog(this, msg); gameOver =true;} isBlack= !isBlack;}// 覆盖 MouseListener 的方法 public void mouseClicked(MouseEvent e){ } // 鼠标按键在组件上单击（按下并释放）时调用。public void mouseEntered(MouseEvent e){}// 鼠标进入到组件上时调用。public void mouseExited(MouseEvent e){ }// 鼠标离开组件时调用。public void mouseReleased(MouseEvent e){ } // 鼠标按钮在组件上释放时调用。// 在棋子数组中查找是否有索引为 x,y 的棋子存在private boolean findChess(int x, int y){ for (Point c :chessList) {if(c!= null &&c.getX()== x&&c.getY() == y)return true; }return false; }private boolean isWin(){//判断那方赢int continueCount = 1;// 连续棋子的个数 // 横向向右寻找 for (int x=xIndex - 1; x>= 0; x--) { Color c = isBlack? Color.black: Color.white;if(getChess(x, yIndex, c)!= null){continueCount++;}else break;}// 横向向左寻找for (int x=xIndex +1; x<= ROWS; x++) {Color c = isBlack? Color.black: Color.white; if(getChess(x, yIndex, c)!= null){ continueCount++;}else break; }if(continueCount>= 5){ return true;}else continueCount = 1;// 继续另一种情况的搜索: 纵向 // 纵向向上寻找for (int y=yIndex - 1; y>= 0; y--) {Color c = isBlack? Color.black: Color.white;if(getChess(xIndex, y, c) != null){continueCount++; }else break;} // 纵向向下寻找for (int y=yIndex +1; y<= ROWS; y++) { Color c = isBlack? Color.black: Color.white; if(getChess(xIndex, y, c) != null){continueCount++;}else break; } if(continueCount>= 5){return true;}else continueCount = 1;//继续另一种情况的搜索: 纵向 // 纵向向上寻找for (int y=yIndex - 1; y>= 0; y--) { Color c = isBlack? Color.black: Color.white;if(getChess(xIndex, y, c) != null){ continueCount++; }else break;} // 纵向向下寻找 for (int y=yIndex +1; y<= ROWS; y++) { Color c = isBlack? Color.black: Color.white;if(getChess(xIndex, y, c) != null){continueCount++; }else break;} if(continueCount>= 5){ return true; }else continueCount = 1;//继续另一种情况的搜索: 斜向 // 左上寻找for (int x=xIndex +1, y= yIndex- 1; y>= 0&&x<= COLS; x++, y--){Color c = isBlack? Color.black: Color.white;if(getChess(x, y, c) != null) {continueCount++; }else break; } // 左下寻找 for (int x=xIndex - 1, y=yIndex +1; y<= ROWS &&x>= 0; x--, y++) { Color c = isBlack? Color.black: Color.white; if(getChess(x, y, c) != null) { continueCount++; }else break;}if(continueCount>= 5){ return true; }else continueCount = 1;//继续另一种情况的搜索: 斜向// 右上寻找for (int x=xIndex - 1, y=yIndex - 1; y>= 0&&x>= 0; x--, y--){Color c = isBlack? Color.black: Color.white;if(getChess(x, y, c) != null){continueCount++;}else break;} // 右下寻找for (int x=xIndex +1, y= yIndex+ 1; y<= ROWS &&x<= COLS; x++, y++){ Color c = isBlack? Color.black: Color.white;if(getChess(x, y, c) != null) { continueCount++;}else break;} if(continueCount>= 5){ return true;}else continueCount = 1;return false;}private Point getChess(int xIndex, int yIndex, Color color){ for (Point c :chessList) {if(c!= null &&c.getX()== xIndex&&c.getY()== yIndex &&c.getColor()== color)return c; }return null;}public void restartGame(){// 清除棋子 for (int i= 0; i< chessList.length; i++) chessList[i]= null; isBlack= true; gameOver= false;//游戏是否结束 chessCount= 0; // 当前棋盘的棋子个数 repaint();}// 悔棋 public void goback() {if(chessCount == 0)return;chessList[chessCount - 1]= null; chessCount--; if(chessCount > 0){ xIndex= chessList[chessCount - 1].getX(); yIndex= chessList[chessCount - 1].getY();} isBlack= !isBlack; repaint();}// Dimension: 矩形public Dimension getPreferredSize(){return new Dimension(MARGIN *2+GRID_SPAN*COLS, MARGIN *2 + GRID_SPAN*ROWS); }}
效果图
大家自己去试一下吧
