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  */ 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   } }