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    } }