本文实例讲述了java实现的五子棋游戏代码，分享给大家供大家参考，具体代码如下

一、实践目标

1.掌握JavaGUI界面设计

2.掌握鼠标事件的监听（MouseListener，MouseMotionListener）

二、实践内容

设计一个简单的五子棋程序，能够实现五子棋下棋过程。如下图所示

1.五子棋棋盘类

package cn.edu.ouc.fiveChess; import java.awt.Color; import java.awt.Cursor; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.RadialGradientPaint; import java.awt.RenderingHints; import java.awt.Toolkit; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.MouseMotionListener; import java.awt.geom.Ellipse2D; import javax.swing.*; /** * 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=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null boolean isBlack=true;//默认开始是黑棋先 boolean gameOver=false;//游戏是否结束 int chessCount;//当前棋盘棋子的个数 int xIndex,yIndex;//当前刚下棋子的索引 Image img; Image shadows; Color colortemp; public ChessBoard(){ // setBackground(Color.blue);//设置背景色为橘黄色 img=Toolkit.getDefaultToolkit().getImage("board.jpg"); shadows=Toolkit.getDefaultToolkit().getImage("shadows.jpg"); addMouseListener(this); addMouseMotionListener(new MouseMotionListener(){ 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)); //设置成默认状态 else setCursor(new Cursor(Cursor.HAND_CURSOR)); } }); } //绘制 public void paintComponent(Graphics g){ super.paintComponent(g);//画棋盘 int imgWidth= img.getWidth(this); int imgHeight=img.getHeight(this);//获得图片的宽度与高度 int FWidth=getWidth(); int FHeight=getHeight();//获得窗口的宽度与高度 int x=(FWidth-imgWidth)/2; int y=(FHeight-imgHeight)/2; g.drawImage(img, x, y, null); 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++){//画竖线 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++){ //网格交叉点x，y坐标 int xPos=chessList[i].getX()*GRID_SPAN+MARGIN; int yPos=chessList[i].getY()*GRID_SPAN+MARGIN; g.setColor(chessList[i].getColor());//设置颜色 // g.fillOval(xPos-Point.DIAMETER/2, yPos-Point.DIAMETER/2, //Point.DIAMETER, Point.DIAMETER); //g.drawImage(shadows, xPos-Point.DIAMETER/2, yPos-Point.DIAMETER/2, Point.DIAMETER, Point.DIAMETER, null); colortemp=chessList[i].getColor(); if(colortemp==Color.black){ RadialGradientPaint paint = new RadialGradientPaint(xPos-Point.DIAMETER/2+25, yPos-Point.DIAMETER/2+10, 20, new float[]{0f, 1f} , new Color[]{Color.WHITE, Color.BLACK}); ((Graphics2D) g).setPaint(paint); ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_DEFAULT); } else if(colortemp==Color.white){ RadialGradientPaint paint = new RadialGradientPaint(xPos-Point.DIAMETER/2+25, yPos-Point.DIAMETER/2+10, 70, new float[]{0f, 1f} , new Color[]{Color.WHITE, Color.BLACK}); ((Graphics2D) g).setPaint(paint); ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_DEFAULT); } Ellipse2D e = new Ellipse2D.Float(xPos-Point.DIAMETER/2, yPos-Point.DIAMETER/2, 34, 35); ((Graphics2D) g).fill(e); //标记最后一个棋子的红矩形框 if(i==chessCount-1){//如果是最后一个棋子 g.setColor(Color.red); g.drawRect(xPos-Point.DIAMETER/2, yPos-Point.DIAMETER/2, 34, 35); } } } public void mousePressed(MouseEvent e){//鼠标在组件上按下时调用 //游戏结束时，不再能下 if(gameOver) return; String colorName=isBlack"白棋"; //将鼠标点击的坐标位置转换成网格索引 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; //如果x，y位置已经有棋子存在，不能下 if(findChess(xIndex,yIndex))return; //可以进行时的处理 Point ch=new Point(xIndex,yIndex,isBlack?Color.black:Color.white); chessList[chessCount++]=ch; repaint();//通知系统重新绘制 //如果胜出则给出提示信息，不能继续下棋 if(isWin()){ 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(){ 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++; }else break; } //横向向东寻找 for(int x=xIndex+1;x<=COLS;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; //继续另一种搜索纵向 //向上搜索 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 //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++; } else break; } //西南寻找 for(int x=xIndex-1,y=yIndex+1;x>=0&&y<=ROWS;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 //西北寻找 for(int x=xIndex-1,y=yIndex-1;x>=0&&y>=0;x--,y--){ Color c=isBlack?Color.black:Color.white; if(getChess(x,y,c)!=null) continueCount++; else break; } //东南寻找 for(int x=xIndex+1,y=yIndex+1;x<=COLS&&y<=ROWS;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 p:chessList){ if(p!=null&&p.getX()==xIndex&&p.getY()==yIndex &&p.getColor()==color) return p; } 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(); } //矩形Dimension public Dimension getPreferredSize(){ return new Dimension(MARGIN*2+GRID_SPAN*COLS,MARGIN*2 +GRID_SPAN*ROWS); } }

2.棋子类

package cn.edu.ouc.fiveChess; import java.awt.Color; /** * 棋子类 */ 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x的索引 return x; } public int getY(){ return y; } public Color getColor(){//获得棋子的颜色 return color; } }

3.五子棋主框架类

package cn.edu.ouc.fiveChess; import java.awt.event.*; import java.awt.*; import javax.swing.*; /* 五子棋主框架類，程序啟動類 */ public class StartChessJFrame extends JFrame { private ChessBoard chessBoard; private JPanel toolbar; private JButton startButton,backButton,exitButton; private JMenuBar menuBar; private JMenu sysMenu; 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(); Container contentPane=getContentPane(); contentPane.add(chessBoard); chessBoard.setOpaque(true); //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 //初始化菜单项 startMenuItem=new JMenuItem("重新开始"); exitMenuItem =new JMenuItem("退出"); backMenuItem =new JMenuItem("悔棋"); //将三个菜单项添加到菜单上 sysMenu.add(startMenuItem); sysMenu.add(exitMenuItem); sysMenu.add(backMenuItem); //初始化按钮事件监听器内部类 MyItemListener lis=new MyItemListener(); //将三个菜单注册到事件监听器上 this.startMenuItem.addActionListener(lis); 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();//工具面板实例化 //三个按钮初始化 startButton=new JButton("重新开始"); exitButton=new JButton("退出"); backButton=new JButton("悔棋"); //将工具面板按钮用FlowLayout布局 toolbar.setLayout(new FlowLayout(FlowLayout.LEFT)); //将三个按钮添加到工具面板 toolbar.add(startButton); toolbar.add(exitButton); toolbar.add(backButton); //将三个按钮注册监听事件 startButton.addActionListener(lis); exitButton.addActionListener(lis); backButton.addActionListener(lis); //将工具面板布局到界面”南方“也就是下方 add(toolbar,BorderLayout.SOUTH); add(chessBoard);//将面板对象添加到窗体上 //设置界面关闭事件 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //setSize(800,800); pack();//自适应大小 } private class MyItemListener implements ActionListener{ public void actionPerformed(ActionEvent e){ Object obj=e.getSource();//获得事件源 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); else if (obj==backMenuItem||obj==backButton){ 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 } }

三、总结

1.菜单的设计与实现？

2.鼠标点击棋盘后，如何绘制棋子？如何为刚下的棋子绘制一个红色框？

3.棋谱是如何一个数据结构？

以上就是本文的全部内容，希望对大家学习java程序设计有所帮助。