Java realizes two-way go-to chess game (Six) transformation of chess game

The previous two articles: Java implements two Gozi game (two) to draw a chess board; Java implements two Gozi game (two) to draw a chess piece; Java implements two Gozi game (four) to realize the move of two Gozi game (two) to view it.

We have drawn chess boards and chess pieces before, and can freely make moves and judge whether there are five consecutive beads in the chessboard. The next job is to exchange the chess side after each move (that is, the color of the next piece is white->black or black->white), and add the color judgment conditions to the winning judgment (there are five consecutive beads on the chessboard->five consecutive beads of the same color on the chessboard).

The main module Main.java and the chess class Chessman.java remain unchanged. We need to make adjustments to the mousePressed function and the five-bead judgment function isWin in DrawChessBoard.java.

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 title setTitle("Stand-alone Goji"); Container containerPane =getContentPane(); containerPane.add(drawChessBoard); } public static void main(String[] args) { Main m = new Main(); m.setSize(800, 800); m.setVisible(true); } }

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; } }

The first step is to modify the mousePressed function so that after each move, the chess game will be given to the opponent (that is, the color of the chess piece will be changed every time you move)

The mousePressed function part in DrawChessBoard.java, as long as the value of chessColor is modified every time.

 @Override //Public void mousePressed(MouseEvent e) { int point_x=e.getX(); int point_y=e.getY(); 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; //System.out.println("press"); int status_x = 0; int status_y = 0; if(point_x>=x && point_x<=x+imgWidth && point_y>=y && point_y <= y+imgHeight) { //System.out.println("Legal"); for(int i=0;i<ROWS+1;i++) { if(point_x>=x-chessman_width/2+1+i*span_x) { if(point_x<=x+chessman_width/2-1+i*span_x)//If it is width/2, two matching values will appear at the middle point{ //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<ROWS+1;i++) { if(point_y>=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(chessColor, true); chessStatus[status_x][status_y]=chessman; System.out.println("chess color:"+chessColor); if(chessColor==BLACK) { chessColor = WHITE; }else { chessColor = BLACK; } repaint(); if(isWin(status_x, status_y, chessStatus)) { System.out.println("WIN!!!"); } } }

Run it

The second step is to add color judgment conditions to the winning judgment (there are five consecutive beads on the chessboard ->There are five consecutive beads of the same color on the chessboard)

Add the color judgment of Chessman.getColor to the judgment of the isWin function

isWin function code

 boolean isWin(int point_x,int point_y,Chessman[][] cm) { for(int i=0;i<ROWS+1;i++) { for(int j=0;j<ROWS+1;j++) { //Landwise search if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true) { int matchColor = chessStatus[i][j].getColor(); //Look 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+n][j].getColor()==matchColor) { 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; } } } //Look for(int n=1;n<=4;n++) { if(in>=0)&&(in)<=ROWS) { if(chessStatus[in][j]!=null&&chessStatus[in][j].getPlaced()==true&&chessStatus[in][j].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" "+"left count++:"+(in)+" "+j+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { if(chessStatus[in][j]!=null) { chessStatus[i][j].matchCount = 1; } break; } } } } chessStatus[i][j].matchCount=1;//refresh count } } } for(int i=0;i<ROWS+1;i++) { for(int j=0;j<ROWS+1;j++) { //Longitudinal if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true) { int matchColor = chessStatus[i][j].getColor(); //Look down, the upper left corner is the coordinate origin, and the positive direction of the y-axis is downward 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+n].getColor()==matchColor) { 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; } } } //Look up for(int n=1;n<=4;n++) { if((jn>=0)&&(jn)<=ROWS) { if(chessStatus[i][jn]!=null&&chessStatus[i][jn].getPlaced()==true&&chessStatus[i][jn].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" "+"left count++:"+(i)+" "+(jn)+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { if(chessStatus[i][jn]!=null) { chessStatus[i][j].matchCount = 1; } break; } } } } chessStatus[i][j].matchCount=1;//refresh count } } } // Direction: upper left and lower right for(int i=0;i<ROWS+1;i++) { for(int j=0;j<ROWS+1;j++) { //Upper left if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true) { int matchColor = chessStatus[i][j].getColor(); //Look down, the upper left corner is the coordinate origin, the positive direction of the y-axis is down for(int n=1;n<=4;n++) { if((jn>=0)&&(jn)<=ROWS&&(in)>=0&&(in)<=ROWS) { if(chessStatus[in][jn]!=null&&chessStatus[in][jn].getPlaced()==true&&chessStatus[in][jn].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" up count++:"+(in)+" "+(jn)+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { break; } } } //Lower right 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+n][j+n].getColor()==matchColor) { 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 } } } // Direction: lower left upper right upper for(int i=0;i<ROWS+1;i++) { for(int j=0;j<ROWS+1;j++) { // lower left if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true) { int matchColor = chessStatus[i][j].getColor(); //Look down, the upper left corner is the coordinate origin, and the positive direction of the y-axis is downward for(int n=1;n<=4;n++) { if((j+n>=0)&&(j+n)<=ROWS&&(in)>=0&&(in)<=ROWS) { if(chessStatus[in][j+n]!=null&&chessStatus[in][j+n].getPlaced()==true&&chessStatus[in][j+n].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" up count++:"+(in)+" "+(j+n)+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { break; } } } //Upper right for(int n=1;n<=4;n++) { if((jn>=0)&&(jn)<=ROWS&&(i+n)>=0&&(i+n)<=ROWS) { if(chessStatus[i+n][jn]!=null&&chessStatus[i+n][jn].getPlaced()==true&&chessStatus[i+n][jn].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" "+"left count++:"+(i+n)+" "+(jn)+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { if(chessStatus[i+n][jn]!=null) { chessStatus[i][j].matchCount = 1; } break; } } } } chessStatus[i][j].matchCount=1;//refresh count } } } return false; }

Run it!

Complete DrawChessBoard.java

 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 implementations 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); //Draw horizontal line for(int i=0;i<ROWS;i++) { g.drawLine(x, y+i*span_y, FWidth-x,y+i*span_y); } //Draw vertical line for(int i=0;i<ROWS;i++) { g.drawLine(x+i*span_x, y, x+i*span_x,FHeight-y); } //Draw chess pieces for(int i=0;i<ROWS+1;i++) { for(int j=0;j<ROWS+1;j++) { if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true) { //System.out.println("draw chessman "+i+" "+j); int pos_x=x+i*span_x; int pos_y=y+j*span_y; float radius_b=40; float radius_w=80; float[] fractions = new float[]{0f,1f}; java.awt.Color[] colors_b = new java.awt.Color[]{Color.BLACK,Color.WHITE}; Color[] colors_w = new Color[]{Color.WHITE,Color.BLACK}; RadialGradientPaint paint; if(chessStatus[i][j].getColor()==1) { //System.out.println("draw white chess"); paint = new RadialGradientPaint(pos_x-chessman_width/2f, pos_y-chessman_width/2f, radius_w*2, fractions, colors_w); }else{ //System.out.println("draw black chess"); paint = new RadialGradientPaint(pos_x-chessman_width/2f, pos_y-chessman_width/2f, radius_b*2, fractions, colors_b); } ((Graphics2D)g).setPaint(paint); ((Graphics2D)g).fillOval(pos_x-chessman_width/2,pos_y-chessman_width/2,chessman_width,chessman_width); } } } } @Override //Public void mousePressed(MouseEvent e) { int point_x=e.getX(); int point_y=e.getY(); 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; //System.out.println("press"); int status_x = 0; int status_y = 0; if(point_x>=x && point_x<=x+imgWidth && point_y>=y && point_y <= y+imgHeight) { //System.out.println("Legal"); for(int i=0;i<ROWS+1;i++) { if(point_x>=x-chessman_width/2+1+i*span_x) { if(point_x<=x+chessman_width/2-1+i*span_x)//If it is width/2, two matching values will appear at the middle point{ //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<ROWS+1;i++) { if(point_y>=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; } } } if(chessStatus[status_x][status_y]==null||chessStatus[status_x][status_y].getPlaced()==false) { Chessman chessman = new Chessman(chessColor, true); chessStatus[status_x][status_y]=chessman; System.out.println("chess color:"+chessColor); if(chessColor==BLACK) { chessColor = WHITE; }else { chessColor = BLACK; } repaint(); if(isWin(status_x, status_y, chessStatus)) { System.out.println("WIN!!!"); } } } } @Override //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<ROWS+1;i++) { for(int j=0;j<ROWS+1;j++) { //Landwise search if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true) { int matchColor = chessStatus[i][j].getColor(); //Look 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+n][j].getColor()==matchColor) { 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; } } } //Look for(int n=1;n<=4;n++) { if(in>=0)&&(in)<=ROWS) { if(chessStatus[in][j]!=null&&chessStatus[in][j].getPlaced()==true&&chessStatus[in][j].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" "+"left count++:"+(in)+" "+j+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { if(chessStatus[in][j]!=null) { chessStatus[i][j].matchCount = 1; } break; } } } } chessStatus[i][j].matchCount=1;//refresh count } } } for(int i=0;i<ROWS+1;i++) { for(int j=0;j<ROWS+1;j++) { //Longitudinal if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true) { int matchColor = chessStatus[i][j].getColor(); //Look down, the upper left corner is the coordinate origin, and the positive direction of the y-axis is downward 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+n].getColor()==matchColor) { 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; } } } //Look up for(int n=1;n<=4;n++) { if((jn>=0)&&(jn)<=ROWS) { if(chessStatus[i][jn]!=null&&chessStatus[i][jn].getPlaced()==true&&chessStatus[i][jn].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" "+"left count++:"+(i)+" "+(jn)+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { if(chessStatus[i][jn]!=null) { chessStatus[i][j].matchCount = 1; } break; } } } } chessStatus[i][j].matchCount=1;//refresh count } } } // Direction: upper left and lower right for(int i=0;i<ROWS+1;i++) { for(int j=0;j<ROWS+1;j++) { //Upper left if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true) { int matchColor = chessStatus[i][j].getColor(); //Look down, the upper left corner is the coordinate origin, the positive direction of the y-axis is down for(int n=1;n<=4;n++) { if((jn>=0)&&(jn)<=ROWS&&(in)>=0&&(in)<=ROWS) { if(chessStatus[in][jn]!=null&&chessStatus[in][jn].getPlaced()==true&&chessStatus[in][jn].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" up count++:"+(in)+" "+(jn)+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { break; } } } //Lower right 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+n][j+n].getColor()==matchColor) { 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 } } } // Direction: lower left upper right upper for(int i=0;i<ROWS+1;i++) { for(int j=0;j<ROWS+1;j++) { // lower left if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true) { int matchColor = chessStatus[i][j].getColor(); //Look down, the upper left corner is the coordinate origin, and the positive direction of the y-axis is downward for(int n=1;n<=4;n++) { if((j+n>=0)&&(j+n)<=ROWS&&(in)>=0&&(in)<=ROWS) { if(chessStatus[in][j+n]!=null&&chessStatus[in][j+n].getPlaced()==true&&chessStatus[in][j+n].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" up count++:"+(in)+" "+(j+n)+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { break; } } } //Upper right for(int n=1;n<=4;n++) { if((jn>=0)&&(jn)<=ROWS&&(i+n)>=0&&(i+n)<=ROWS) { if(chessStatus[i+n][jn]!=null&&chessStatus[i+n][jn].getPlaced()==true&&chessStatus[i+n][jn].getColor()==matchColor) { chessStatus[i][j].matchCount++; System.out.println("pos:"+i+" "+j+" "+"left count++:"+(i+n)+" "+(jn)+" count:"+chessStatus[i][j].matchCount); if(chessStatus[i][j].matchCount==5) { return true; } }else { if(chessStatus[i+n][jn]!=null) { chessStatus[i][j].matchCount = 1; } break; } } } chessStatus[i][j].matchCount=1;//refresh count } } } return false; } }

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