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简单的五子棋程序

新建一个chess类，其中代码如下

package work;

import java.awt.Color;

public class Chess {

public static final int diamter=30;

private int x;//在网格中的索引，0~e68a84e8a2ad62616964757a686964616f3133323865663715

private int y;//在网格中的索引，0~15

private Color color;

public Color getColor() {

return color;

}

public void setColor(Color color) {

this.color = color;

}

public int getX() {

return x;

}

public void setX(int x) {

this.x = x;

}

public int getY() {

return y;

}

public void setY(int y) {

this.y = y;

}

public Chess(int x, int y, Color color) {

super();

this.x = x;

this.y = y;

this.color = color;

}

}

然后在同一个包中新建FirstFrame类。代码如下

package work;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JFrame;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

//主函数

public class FirstFrame{

public static void main(String[] args) {

FirstFrame1 f=new FirstFrame1();

f.setVisible(true);

}

}

//窗体函数

class FirstFrame1 extends JFrame implements ActionListener{

JMenuBar menuBar;

JMenu sysMenu;

JMenuItem startMenuItem;

JMenuItem backMenuItem;

JMenuItem exitMenuItem;

DrawPanel myPanel=new DrawPanel();

public FirstFrame1(){

super(“娃哈哈”);

add(myPanel);

menuBar=new JMenuBar();

setJMenuBar(menuBar);

sysMenu=new JMenu(“系统(s)”);

sysMenu.setMnemonic(‘s’);

menuBar.add(sysMenu);

startMenuItem=new JMenuItem(“开始”);

backMenuItem=new JMenuItem(“悔棋”);

exitMenuItem=new JMenuItem(“退出”);

sysMenu.add(startMenuItem);

sysMenu.add(backMenuItem);

sysMenu.addSeparator();

sysMenu.add(exitMenuItem);

startMenuItem.addActionListener(this);

backMenuItem.addActionListener(this);

exitMenuItem.addActionListener(this);

super.setSize(600,650);

super.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

public void actionPerformed(ActionEvent e){

Object obj=e.getSource();

if(obj==startMenuItem){

myPanel.start(); //DrawPanel p=new DrawPanel();是错的；

}else if(obj==backMenuItem){

myPanel.back();

}else{

System.exit(0);

}

}

}

最后新建一个DrawPanel类代码如下

package work;

import java.awt.Color;

import java.awt.Cursor;

import java.awt.Graphics;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.awt.event.MouseMotionListener;

import javax.swing.JFrame;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import sun.awt.geom.AreaOp.AddOp;

//画柄；

class DrawPanel extends JPanel implements MouseListener,MouseMotionListener{

final int MARGIN_TOP=60;

final int MARGIN_LEFT=30;

final int CELL_WIDTH=35;

final int COLS=15;

final int ROWS=15;

Chess[] chessList=new Chess[(COLS+1)*(ROWS+1)];

int chessCount=0;

boolean isBlack=true;

boolean gameOver=false;

public DrawPanel(){ //构造函数

Color color=new Color(200,250,200);

setBackground(color);

this.addMouseMotionListener(this);

this.addMouseListener(this);

}

public void start(){

for(int i=0;i

chessList[i]=null;

isBlack=true;

gameOver=false;

chessCount=0;

repaint();

}

public void back(){

if (chessCount==0||gameOver==true)

return;

chessList[chessCount-1]=null;

chessCount–;

isBlack=!isBlack;

repaint();

}

@Override

protected void paintComponent(Graphics g) { //方法重写

// TODO Auto-generated method stub

super.paintComponent(g);

for(int i=0;i<=ROWS;i++){

g.drawLine(MARGIN_LEFT, MARGIN_TOP+i*CELL_WIDTH, MARGIN_LEFT+COLS*CELL_WIDTH, MARGIN_TOP+i*CELL_WIDTH);

}

for(int i=0;i<=COLS;i++){

g.drawLine(MARGIN_LEFT+i*CELL_WIDTH, MARGIN_TOP, MARGIN_LEFT+i*CELL_WIDTH, MARGIN_TOP+ROWS*CELL_WIDTH);

}

for(int i=0;i

Chess chess=chessList[i];

int xPos=MARGIN_LEFT+CELL_WIDTH*chess.getX()-Chess.diamter/2;

int yPos=MARGIN_TOP+CELL_WIDTH*chess.getY()-Chess.diamter/2;

g.setColor(chess.getColor());

g.fillOval(xPos,yPos, Chess.diamter, Chess.diamter);

if(i==chessCount-1){

g.setColor(Color.red);

g.drawRect(xPos, yPos, Chess.diamter, Chess.diamter);

}

}

if(isBlack)

g.setColor(Color.black);

else

g.setColor(Color.white);

g.fillOval(8*CELL_WIDTH, CELL_WIDTH/2,Chess.diamter, Chess.diamter);

String colorStr=isBlack==false?”白方下”:”黑方下”;

g.setColor(Color.blue);

g.drawString(colorStr+” 第”+chessCount/2+”步”, 9*CELL_WIDTH, CELL_WIDTH);

}

public void mouseClicked(MouseEvent e) {}

public void mouseEntered(MouseEvent e) {}

public void mouseExited(MouseEvent e) {}

public void mouseReleased(MouseEvent e) {}

public void mouseDragged(MouseEvent e) {}

public void mouseMoved(MouseEvent e) {

// TODO Auto-generated method stub

super.setCursor(new Cursor(Cursor.HAND_CURSOR));

int x=(e.getX()-MARGIN_LEFT+Chess.diamter/2)/CELL_WIDTH;

int y=(e.getY()-MARGIN_TOP+Chess.diamter/2)/CELL_WIDTH;

if(x<0||y<0||x>COLS||y>ROWS) //超出棋盘边界

super.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

if(findChess(x,y)) //下过的地方不能再下

super.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

if(gameOver)

super.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

}

public void mousePressed(MouseEvent e) {

int x=(e.getX()-MARGIN_LEFT+Chess.diamter/2)/CELL_WIDTH;

int y=(e.getY()-MARGIN_TOP+Chess.diamter/2)/CELL_WIDTH;

if(x<0||y<0||x>COLS||y>ROWS) //超出棋盘边界

return;

Color color=Color.black;

if(!isBlack) // 变颜色

color=Color.white;

if(findChess(x,y)) //下过的地方不能再下

return;

if(gameOver)

return;

chessList[chessCount]=new Chess(x,y,color);

repaint(); //重绘

isBlack=!isBlack;

chessCount++;

String colorStr=color==Color.white?”白方”:”黑方”;

int[] count={0,0,0,0};

for(int i=x-1;i>=0;i–){

if(findChess(i,y,color)){

count[0]++;

}

else

break;

}

for(int i=x+1;i<=COLS;i++){

if(findChess(i,y,color)){

count[0]++;

}

else

break;

}

for(int i=y-1;i>=0;i–){

if(findChess(x,i,color)){

count[1]++;

}

else

break;

}

for(int i=y+1;i<=ROWS;i++){

if(findChess(x,i,color)){

count[2]++;

}

else

break;

}

for(int i=x+1,j=y+1;i<=COLS&&j<=ROWS;i++,j++){

if(findChess(i,j,color)){

count[3]++;

}

else

break;

}

for(int i=x-1,j=y-1;i>=0&&j>=0;i–,j–){

if(findChess(i,j,color)){

count[3]++;

}

else

break;

}

for(int i=x+1,j=y-1;i<=COLS&&j>=0;i++,j–){

if(findChess(i,j,color)){

count[3]++;

}

else

break;

}

for(int i=x-1,j=y+1;i>=0&&j<=ROWS;i–,j++){

if(findChess(i,j,color)){

count[3]++;

}

else

break;

}

for(int i=0;i<4;i++){

if(count[i]>=4){

gameOver=true;

JOptionPane.showMessageDialog(this, “恭喜”+colorStr+”胜利”);

return;

}

}

System.out.println(e.getX()+”,”+e.getY());

}

public boolean findChess(int x,int y){

for(int i=0;i

if(chessList[i].getX()==x && chessList[i].getY()==y)

return true;

}

return false;

}

public boolean findChess(int x,int y,Color color){

for(int i=0;i

if(chessList[i].getX()==x && chessList[i].getY()==y && chessList[i].getColor()==color)

return true;

}

return false;

}

}

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