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Java實(shí)現(xiàn)兩人五子棋游戲(五)判斷是否有一方勝出

之前的兩篇文章：Java實(shí)現(xiàn)兩人五子棋游戲(二) 畫(huà)出棋盤(pán)；Java實(shí)現(xiàn)兩人五子棋游戲(三) 畫(huà)出棋子；Java實(shí)現(xiàn)兩人五子棋游戲(四) 落子動(dòng)作的實(shí)現(xiàn)，可以點(diǎn)擊查看。

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Java實(shí)現(xiàn)兩人五子棋游戲(五) 判斷是否有一方勝出

前面我們已經(jīng)畫(huà)好了棋盤(pán)、棋子并且可以自由的落子了，那么接下來(lái)要實(shí)現(xiàn)的功能是判斷是否有五連珠（暫時(shí)不考慮行棋方）。

我們采用遍歷棋盤(pán)已經(jīng)落子的位置，查看每個(gè)落子點(diǎn)，在它的上下，左右，左下右上，左上右下四個(gè)方向的任一方向上是否有五個(gè)連續(xù)的棋子。

第一步，對(duì)棋子類進(jìn)行改造，之前我們的棋子類只有顏色信息和落子狀態(tài)，現(xiàn)在要新增一個(gè)int型的數(shù)據(jù)，用于記錄遍歷過(guò)程中當(dāng)前有幾個(gè)珠子已知連續(xù)。

Java實(shí)現(xiàn)兩人五子棋游戲(五) 判斷是否有一方勝出

Chessman.java

package xchen.test.simpleGobang; 
 
public class Chessman { 
  private int color;//1-white，0-black 
  private boolean placed = false; 
  int matchCount = 1; 
   
  public Chessman(int color,boolean placed){ 
    this.color=color; 
    this.placed=placed; 
  } 
   
  public boolean getPlaced() { 
    return placed; 
  } 
 
  public void setPlaced(boolean placed) { 
    this.placed = placed; 
  } 
 
  public int getColor() { 
    return color; 
  } 
 
  public void setColor(int color) { 
    this.color = color; 
  } 
}

第二步，先從一個(gè)方向上判斷是否有五連珠，這里采用左右方向作為嘗試。

添加了一個(gè)isWin函數(shù)，用遍歷整個(gè)棋盤(pán)上的有效棋子的方式，來(lái)進(jìn)行勝出判斷。

DrawChessBoard.java

package xchen.test.simpleGobang; 
 
import java.awt.Graphics; 
import java.awt.Graphics2D; 
import java.awt.RadialGradientPaint; 
import java.awt.Image; 
import java.awt.Toolkit; 
import java.awt.event.MouseEvent; 
import java.awt.event.MouseListener; 
import java.awt.Color; 
import javax.swing.JPanel; 
 
public class DrawChessBoard extends JPanel implements MouseListener{ 
  final static int BLACK=0; 
  final static int WHITE=1; 
  public int chessColor = BLACK; 
  int chessman_width=30; 
   
  public Image boardImg; 
  final private int ROWS = 19; 
  Chessman[][] chessStatus=new Chessman[ROWS+1][ROWS+1];  
   
  public DrawChessBoard() { 
    boardImg = Toolkit.getDefaultToolkit().getImage("res/drawable/chessboard2.png"); 
    if(boardImg == null) 
      System.err.println("png do not exist"); 
     
    addMouseListener(this); 
  }   
  @Override 
  protected void paintComponent(Graphics g) { 
    // TODO Auto-generated method stub 
    super.paintComponent(g); 
     
    int imgWidth = boardImg.getHeight(this); 
    int imgHeight = boardImg.getWidth(this); 
    int FWidth = getWidth(); 
    int FHeight= getHeight(); 
     
    int x=(FWidth-imgWidth)/2; 
    int y=(FHeight-imgHeight)/2; 
     
    int span_x=imgWidth/ROWS; 
    int span_y=imgHeight/ROWS; 
     
    g.drawImage(boardImg, x, y, null); 
     
    //畫(huà)橫線 
    for(int i=0;i=x && point_x<=x+imgWidth && point_y>=y && point_y <= y+imgHeight) 
    { 
      //System.out.println("合法"); 
      for(int i=0;i=x-chessman_width/2+1+i*span_x) 
        { 
          if(point_x<=x+chessman_width/2-1+i*span_x)//如果是width/2會(huì)在中間點(diǎn)出現(xiàn)兩個(gè)匹配值 
          { 
            //System.out.println("point x "+i+" "+point_x+" "+(x-chessman_width/2+i*span_x)+" "+(x+chessman_width/2+i*span_x)); 
            status_x = i; 
          } 
        } 
      } 
      for(int i=0;i=y-chessman_width/2+1+i*span_y) 
        { 
          if(point_y <= y+chessman_width/2-1+i*span_y) 
          { 
            //System.out.println("point y "+i+" "+point_y+" "+(y-chessman_width/2+1+i*span_y)+" "+(y+chessman_width/2-1+i*span_y)); 
            status_y = i; 
          } 
        } 
      } 
      Chessman chessman = new Chessman(BLACK, true); 
      chessStatus[status_x][status_y]=chessman; 
      repaint(); 
      if(isWin(status_x, status_y, chessStatus)) 
      { 
        System.out.println("WIN!!!!!"); 
      } 
    } 
  } 
  @Override 
  //當(dāng)用戶按下并松開(kāi)鼠標(biāo)按鈕時(shí)發(fā)生 
  public void mouseClicked(MouseEvent e) { 
    // TODO Auto-generated method stub 
  } 
  @Override 
  public void mouseReleased(MouseEvent e) { 
    // TODO Auto-generated method stub 
     
  } 
  @Override 
  public void mouseEntered(MouseEvent e) { 
    // TODO Auto-generated method stub 
     
  } 
  @Override 
  public void mouseExited(MouseEvent e) { 
    // TODO Auto-generated method stub  
  } 
   
  boolean isWin(int point_x,int point_y,Chessman[][] cm) 
  { 
    //int matchCount = 1;//記錄連珠的數(shù)目 
     
    //橫向查找 
    for(int i=0;i=0)&&(i+n)<=ROWS) 
            { 
              if(chessStatus[i+n][j]!=null&&chessStatus[i+n][j].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" right count++:"+(i+n)+" "+j+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                break; 
              }   
            } 
          } 
          //向左側(cè)查找 
          for(int n=1;n<=4;n++) 
          { 
            if((i-n>=0)&&(i-n)<=ROWS) 
            { 
              if(chessStatus[i-n][j]!=null&&chessStatus[i-n][j].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" "+"left count++:"+(i-n)+" "+j+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                if(chessStatus[i-n][j]!=null) 
                { 
                  chessStatus[i][j].matchCount = 1; 
                } 
                break; 
              } 
            } 
          } 
          chessStatus[i][j].matchCount=1;//refresh count 
        } 
      } 
    } 
    return false; 
     
  } 
}

第三步，主模塊不變，運(yùn)行測(cè)試一下我們的算法是否正確

Main.java

package xchen.test.simpleGobang; 
 
import java.awt.Container; 
import javax.swing.JFrame; 
 
import xchen.test.simpleGobang.DrawChessBoard; 
 
public class Main extends JFrame{ 
  private DrawChessBoard drawChessBoard; 
  public Main() {    
    drawChessBoard = new DrawChessBoard(); 
     
    //Frame標(biāo)題 
    setTitle("單機(jī)五子棋"); 
     
    Container containerPane =getContentPane(); 
    containerPane.add(drawChessBoard);    
  } 
  public static void main(String[] args) { 
    Main m = new Main(); 
    m.setSize(800, 800); 
    m.setVisible(true); 
  } 
}

Java實(shí)現(xiàn)兩人五子棋游戲(五) 判斷是否有一方勝出

第四步，現(xiàn)在我們一個(gè)方向上的判斷已經(jīng)做好了，接下來(lái)補(bǔ)全其他三個(gè)方向上的判斷代碼

補(bǔ)足DrawChessBoard.java中的isWin()函數(shù)

package xchen.test.simpleGobang; 
 
import java.awt.Color; 
import java.awt.Graphics; 
import java.awt.Graphics2D; 
import java.awt.Image; 
import java.awt.RadialGradientPaint; 
import java.awt.Toolkit; 
import java.awt.event.MouseEvent; 
import java.awt.event.MouseListener; 
 
import javax.swing.JPanel; 
 
public class DrawChessBoard extends JPanel implements MouseListener{ 
  final static int BLACK=0; 
  final static int WHITE=1; 
  public int chessColor = BLACK; 
  int chessman_width=30; 
 
  public Image boardImg; 
  final private int ROWS = 19; 
  Chessman[][] chessStatus=new Chessman[ROWS+1][ROWS+1];  
 
  public DrawChessBoard() { 
    boardImg = Toolkit.getDefaultToolkit().getImage("res/drawable/chessboard2.png"); 
    if(boardImg == null) 
      System.err.println("png do not exist"); 
 
    addMouseListener(this); 
  }   
  @Override 
  protected void paintComponent(Graphics g) { 
    // TODO Auto-generated method stub 
    super.paintComponent(g); 
 
    int imgWidth = boardImg.getHeight(this); 
    int imgHeight = boardImg.getWidth(this); 
    int FWidth = getWidth(); 
    int FHeight= getHeight(); 
 
    int x=(FWidth-imgWidth)/2; 
    int y=(FHeight-imgHeight)/2; 
 
    int span_x=imgWidth/ROWS; 
    int span_y=imgHeight/ROWS; 
 
    g.drawImage(boardImg, x, y, null); 
 
    //畫(huà)橫線 
    for(int i=0;i=x && point_x<=x+imgWidth && point_y>=y && point_y <= y+imgHeight) 
    { 
      //System.out.println("合法"); 
      for(int i=0;i=x-chessman_width/2+1+i*span_x) 
        { 
          if(point_x<=x+chessman_width/2-1+i*span_x)//如果是width/2會(huì)在中間點(diǎn)出現(xiàn)兩個(gè)匹配值 
          { 
            //System.out.println("point x "+i+" "+point_x+" "+(x-chessman_width/2+i*span_x)+" "+(x+chessman_width/2+i*span_x)); 
            status_x = i; 
          } 
        } 
      } 
      for(int i=0;i=y-chessman_width/2+1+i*span_y) 
        { 
          if(point_y <= y+chessman_width/2-1+i*span_y) 
          { 
            //System.out.println("point y "+i+" "+point_y+" "+(y-chessman_width/2+1+i*span_y)+" "+(y+chessman_width/2-1+i*span_y)); 
            status_y = i; 
          } 
        } 
      } 
      Chessman chessman = new Chessman(BLACK, true); 
      chessStatus[status_x][status_y]=chessman; 
      repaint(); 
      if(isWin(status_x, status_y, chessStatus)) 
      { 
        System.out.println("WIN!!!!!"); 
      } 
    } 
  } 
  @Override 
  //當(dāng)用戶按下并松開(kāi)鼠標(biāo)按鈕時(shí)發(fā)生 
  public void mouseClicked(MouseEvent e) { 
    // TODO Auto-generated method stub 
  } 
  @Override 
  public void mouseReleased(MouseEvent e) { 
    // TODO Auto-generated method stub 
 
  } 
  @Override 
  public void mouseEntered(MouseEvent e) { 
    // TODO Auto-generated method stub 
 
  } 
  @Override 
  public void mouseExited(MouseEvent e) { 
    // TODO Auto-generated method stub  
  } 
 
  boolean isWin(int point_x,int point_y,Chessman[][] cm) 
  {   
    for(int i=0;i=0)&&(i+n)<=ROWS) 
            { 
              if(chessStatus[i+n][j]!=null&&chessStatus[i+n][j].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" right count++:"+(i+n)+" "+j+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                break; 
              }   
            } 
          } 
          //向左側(cè)查找 
          for(int n=1;n<=4;n++) 
          { 
            if((i-n>=0)&&(i-n)<=ROWS) 
            { 
              if(chessStatus[i-n][j]!=null&&chessStatus[i-n][j].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" "+"left count++:"+(i-n)+" "+j+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                if(chessStatus[i-n][j]!=null) 
                { 
                  chessStatus[i][j].matchCount = 1; 
                } 
                break; 
              } 
            } 
          } 
          chessStatus[i][j].matchCount=1;//refresh count 
        } 
      } 
    } 
 
    for(int i=0;i=0)&&(j+n)<=ROWS) 
            { 
              if(chessStatus[i][j+n]!=null&&chessStatus[i][j+n].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" up count++:"+(i)+" "+(j+n)+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                break; 
              }   
            } 
          } 
          //向上查找 
          for(int n=1;n<=4;n++) 
          { 
            if((j-n>=0)&&(j-n)<=ROWS) 
            { 
              if(chessStatus[i][j-n]!=null&&chessStatus[i][j-n].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" "+"left count++:"+(i)+" "+(j-n)+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                if(chessStatus[i][j-n]!=null) 
                { 
                  chessStatus[i][j].matchCount = 1; 
                } 
                break; 
              } 
            } 
          } 
          chessStatus[i][j].matchCount=1;//refresh count 
        } 
      } 
    } 
 
    //方向：左上右下 
    for(int i=0;i=0)&&(j-n)<=ROWS&&(i-n)>=0&&(i-n)<=ROWS) 
            { 
              if(chessStatus[i-n][j-n]!=null&&chessStatus[i-n][j-n].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" up count++:"+(i-n)+" "+(j-n)+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                break; 
              }   
            } 
          } 
          //右下 
          for(int n=1;n<=4;n++) 
          { 
            if((j+n>=0)&&(j+n)<=ROWS&&(i+n)>=0&&(i+n)<=ROWS) 
            { 
              if(chessStatus[i+n][j+n]!=null&&chessStatus[i+n][j+n].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" "+"left count++:"+(i+n)+" "+(j+n)+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                if(chessStatus[i+n][j+n]!=null) 
                { 
                  chessStatus[i][j].matchCount = 1; 
                } 
                break; 
              } 
            } 
          } 
          chessStatus[i][j].matchCount=1;//refresh count 
        } 
      } 
    } 
 
    //方向：左下右上 
    for(int i=0;i=0)&&(j+n)<=ROWS&&(i-n)>=0&&(i-n)<=ROWS) 
            { 
              if(chessStatus[i-n][j+n]!=null&&chessStatus[i-n][j+n].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" up count++:"+(i-n)+" "+(j+n)+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                break; 
              }   
            } 
          } 
          //右上 
          for(int n=1;n<=4;n++) 
          { 
            if((j-n>=0)&&(j-n)<=ROWS&&(i+n)>=0&&(i+n)<=ROWS) 
            { 
              if(chessStatus[i+n][j-n]!=null&&chessStatus[i+n][j-n].getPlaced()==true) 
              { 
                chessStatus[i][j].matchCount++; 
                System.out.println("pos:"+i+" "+j+" "+"left count++:"+(i+n)+" "+(j-n)+" count:"+chessStatus[i][j].matchCount); 
                if(chessStatus[i][j].matchCount==5) 
                { 
                  return true; 
                } 
              }else 
              { 
                if(chessStatus[i+n][j-n]!=null) 
                { 
                  chessStatus[i][j].matchCount = 1; 
                } 
                break; 
              } 
            } 
          } 
          chessStatus[i][j].matchCount=1;//refresh count 
        } 
      } 
    }     
 
    return false;   
  } 
}

再運(yùn)行一下

Java實(shí)現(xiàn)兩人五子棋游戲(五) 判斷是否有一方勝出

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