Java棋类游戏实践之单机版五子棋

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?"黑棋":"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); 
 } 
 
 
 
} 

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; 
 } 
} 

package cn.edu.ouc.fiveChess; 
import java.awt.event.*; 
import java.awt.*; 
 
import javax.swing.*; 
/* 
 五子棋主框架?，程序??宇? 
 */ 
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 
 
 } 
}