Java五子棋

Java基础与案例开发详解里面的案例，值得认真学习

下载地址：http://download.csdn.net/detail/hong0220/4676567      (第17章)

主程序：

import javax.swing.*;import java.awt.event.*;import java.awt.*;/*五子棋-主框架类, 程序启动类 */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("单机版五子棋");//设置标题chessBoard = new ChessBoard();//初始化面板对象// 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 MyItemListener();//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"南"方也就是下面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pack(); // 自适应大小}private class MyItemListener implements ActionListener {//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}}

import javax.swing.*;import java.awt.*;import java.awt.event.MouseListener;import java.awt.event.MouseMotionListener;import java.awt.event.MouseEvent;/* 五子棋-棋盘类 */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 = 10;//棋盘行数public static final int COLS = 10;//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() { // 匿名内部类:设置光标移动时的图像public void mouseDragged(MouseEvent e) {}public void mouseMoved(MouseEvent e) {int 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;// 游戏已经结束，不能下// 落在棋盘外，不能下// x,y位置已经有棋子存在，不能下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}});}// 绘制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 = chessList[i].getX() * GRID_SPAN + MARGIN; // 网格交叉点的x坐标int yPos = 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; // 将鼠标点击的坐标位置转换成网格索引。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(); // 通知系统重新绘制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// 横向向西寻找for (int x = xIndex - 1; x >= 0; x--) {Color c = isBlack ? Color.black : Color.white;if (getChess(x, yIndex, c) != null) {continueCount++;} elsebreak;}// 横向向东寻找for (int x = xIndex + 1; x <= ROWS; x++) {Color c = isBlack ? Color.black : Color.white;if (getChess(x, yIndex, c) != null) {continueCount++;} elsebreak;}if (continueCount >= 5) {return true;} elsecontinueCount = 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++;} elsebreak;}// 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++;} elsebreak;}if (continueCount >= 5) {return true;} elsecontinueCount = 1;// 继续另一种情况的搜索: 斜向// 东北寻找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++;} elsebreak;}// 西南寻找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++;} elsebreak;}if (continueCount >= 5) {return true;} elsecontinueCount = 1;// 继续另一种情况的搜索: 斜向// 西北寻找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++;} elsebreak;}// 西南寻找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++;} elsebreak;}if (continueCount >= 5) {return true;} elsecontinueCount = 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;// 恢复游戏相关的变量值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);}}

import java.awt.Color;/*五子棋的棋子设计。 */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;}}