java简单实现中国象棋

运行效果

import java.awt.Canvas;
import java.awt.Color;
import java.awt.Font;
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.image.BufferedImage;
import java.util.Random;
import java.util.Stack;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
public class Chinesechese extends Canvas implements MouseListener 
{
	class Record{
		int fromx,fromy,tox,toy,fromindex,toindex;
		Record(int fromx,int fromy,int tox,int toy,int fromindex,int toindex){
		    this.fromx=fromx;	
		    this.fromy=fromy;	
		    this.tox=tox;	
		    this.toy=toy;	
		    this.fromindex=fromindex;	
		    this.toindex=toindex;	
		}
	}
	int take_x=-1,take_y=-1,player=0;
	boolean isRuning=true;
	int table[][]=new int[10][11];
	String name[]= {"","将","仕","像","傌","俥","炮","卒","帅","士","相","马","车","炮","兵"};
	int value[]= {0,1000,30,30,50,200,100,30,-1000,-30,-30,-50,-200,-100,-30};
	int init_table[]= {0,5,4,3,2,1,2,3,4,5};
	Random radom=new Random();
	BufferedImage map = new BufferedImage(500, 600, BufferedImage.TYPE_INT_RGB);
	BufferedImage offScreenImage = new BufferedImage(500, 600, BufferedImage.TYPE_INT_RGB);
	BufferedImage runImage = new BufferedImage(500, 600, BufferedImage.TYPE_INT_RGB);
	Stack<Record> recordstk=new Stack<Record>();
	Chinesechese(){
		this.addMouseListener(this);
		this.setBounds(150, 0,500, 600);
		this.setBackground(Color.BLACK);
		Graphics g=map.getGraphics();
		g.setColor(Color.WHITE);
		g.fillRect(0, 0, 500, 570);
		g.setColor(Color.black);
		g.setFont(new Font("Dialog",0,35));
		g.drawString(" 楚河         汉界", 130, 285);
		for(int i=0;i<9;i++) {
			g.drawLine(i*50+50,30+10, i*50+50, 230+10);
			g.drawLine(i*50+50,300+10, i*50+50,500+10);
		}
		for(int i=0;i<5;i++)g.drawLine(50, 30+i*50+10, 450, 30+i*50+10);
		for(int i=0;i<5;i++)g.drawLine(50, 300+i*50+10, 450, 300+i*50+10);
		g.drawLine(50, 230, 50, 330);
		g.drawLine(450, 230, 450, 330);
		g.drawLine(200,  30+10, 300, 130+10);
		g.drawLine(200, 130+10, 300,  30+10);
		g.drawLine(200, 400+10, 300, 500+10);
		g.drawLine(200, 500+10, 300, 400+10);
		for(int i=0;i<10;i++)table[i][1]=init_table[i];
		for(int i=0;i<10;i++)table[i][10]=init_table[i]+7;
		for(int i=1;i<10;i+=2)table[i][4]=7;
		for(int i=1;i<10;i+=2)table[i][7]=14;
		table[2][3]=table[8][3]=6;
		table[2][8]=table[8][8]=13;
		paintTable();
	}

	public void paint(Graphics g) {
		g.drawImage(offScreenImage, 0, 0, 500, 600, this);
	}
	void paintTable() {
		Graphics g=offScreenImage.getGraphics();
		g.drawImage(map, 0, 0, 500, 600, this);
		for(int h=1;h<=10;h++)
		  for(int w=1;w<10;w++) 
		 {
			if(table[w][h]==0)continue;
			if(h<=5) {
				g.setColor(Color.white);
				g.fillArc(w*50-25, h*50-35, 50, 50, 0, 360);
				if(table[w][h]<=7)g.setColor(Color.green);
				else g.setColor(Color.red);
				g.drawArc(w*50-25, h*50-35,50, 50, 0, 360);
				g.drawArc(w*50-25+5, h*50-35+5,40, 40, 0, 360);
				g.setFont(new Font("Dialog",0,35));
				g.drawString(name[table[w][h]], w*50-18, h*50+2);
			}else {
				g.setColor(Color.white);
				g.fillArc(w*50-25, h*50-15, 50, 50, 0, 360);
				if(table[w][h]<=7)g.setColor(Color.green);
				else g.setColor(Color.red);
				g.drawArc(w*50-25, h*50-15,50, 50, 0, 360);
				g.drawArc(w*50-20, h*50-10,40, 40, 0, 360);
				g.setFont(new Font("Dialog",0,35));
				g.drawString(name[table[w][h]], w*50-18, h*50+22);
			}
		 }		
	}
	void run(int startx,int starty,int endx,int endy,int index) {
		int k=Math.abs(endx-startx)*5+Math.abs(endy-starty)*5;
		startx=startx*50-25;
		if(starty<=5)starty=starty*50-35;
		else starty=starty*50-15;
		endx=endx*50-25;
		if(endy<=5)endy=endy*50-35;
		else endy=endy*50-15;
		Graphics tg=runImage.getGraphics();
		Graphics g=this.getGraphics();
		paintTable();
		for(int i=1;i<=k;i++) 
		{
			try {
				Thread.sleep(10);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			int x=(-startx+endx)/k*i+startx;
			int y=(-starty+endy)/k*i+starty;
			tg.drawImage(offScreenImage, 0, 0, 500, 600, this);
			tg.setColor(Color.white);
			tg.fillArc(x, y, 50, 50, 0, 360);
			if(index<=7)tg.setColor(Color.green);
			else tg.setColor(Color.red);
			tg.drawArc(x, y,50, 50, 0, 360);
			tg.drawArc(x+5, y+5,40, 40, 0, 360);
			tg.setFont(new Font("Dialog",0,35));
			tg.drawString(name[index], x+7, y+37);
			g.drawImage(runImage, 0, 0, 500, 600, this);
		}
		int x=endx;
		int y=endy;
		tg.drawImage(offScreenImage, 0, 0, 500, 600, this);
		tg.setColor(Color.white);
		tg.fillArc(x, y, 50, 50, 0, 360);
		if(index<=7)tg.setColor(Color.green);
		else tg.setColor(Color.red);
		tg.drawArc(x, y,50, 50, 0, 360);
		tg.drawArc(x+5, y+5,40, 40, 0, 360);
		tg.setFont(new Font("Dialog",0,35));
		tg.drawString(name[index], x+7, y+37);
		g.drawImage(runImage, 0, 0, 500, 600, this);
	}
	int getnum(int sx,int sy,int ex,int ey) {
		int cnt=0,t;
		cnt-=(table[sx][sy]==0)?0:1;
		cnt-=(table[ex][ey]==0)?0:1;
		if(sx>ex) {t=sx;sx=ex;ex=t;}
		if(sy>ey) {t=sy;sy=ey;ey=t;}
		for(int i=sx;i<=ex;i++)
			for(int j=sy;j<=ey;j++)
				cnt+=(table[i][j]==0)?0:1;
		return cnt;
	}
	boolean canmove(int sx,int sy,int ex,int ey) {
		if(sx==ex&&sy==ey||table[sx][sy]==0||table[ex][ey]!=0&&table[ex][ey]/8==table[sx][sy]/8)return false;
		if(table[sx][sy]%7==1&&table[ex][ey]%7==1&&Math.abs(ex-sx)==0&&getnum(ex,ey,sx,sy)==0)return true;
		switch(table[sx][sy]) {
		   case 1:return ex>3&&ex<7&&ey<4&&Math.abs(ex-sx)+Math.abs(ey-sy)==1;
		   case 2:return ex>3&&ex<7&&ey<4&&Math.abs(ex-sx)==1&&Math.abs(ey-sy)==1;
		   case 3:return ey<6&&Math.abs(ex-sx)==2&&Math.abs(ey-sy)==2&&table[(ex+sx)/2][(sy+ey)/2]==0;
		   case 4:return Math.abs(ex-sx)==2&&Math.abs(ey-sy)==1&&table[(ex+sx)/2][sy]==0||
				         Math.abs(ex-sx)==1&&Math.abs(ey-sy)==2&&table[sx][(ey+sy)/2]==0;
		   case 5:return (Math.abs(ex-sx)==0||Math.abs(ey-sy)==0)&&getnum(ex,ey,sx,sy)==0;
		   case 6:return (Math.abs(ex-sx)==0||Math.abs(ey-sy)==0)&&
				         (table[ex][ey]!=0&&getnum(ex,ey,sx,sy)==1||table[ex][ey]==0&&getnum(ex,ey,sx,sy)==0);
		   case 7:return ey<6&&Math.abs(ex-sx)==0&&ey-sy==1||ey>=6&&Math.abs(ex-sx)+Math.abs(ey-sy)==1&&ey>=sy;
		}
		switch(table[sx][sy]-7) {
		   case 1:return ex>3&&ex<7&&ey>7&&Math.abs(ex-sx)+Math.abs(ey-sy)==1;
		   case 2:return ex>3&&ex<7&&ey>7&&Math.abs(ex-sx)==1&&Math.abs(ey-sy)==1;
		   case 3:return ey>5&&Math.abs(ex-sx)==2&&Math.abs(ey-sy)==2&&table[(ex+sx)/2][(sy+ey)/2]==0;
		   case 4:return Math.abs(ex-sx)==2&&Math.abs(ey-sy)==1&&table[(ex+sx)/2][sy]==0||
				         Math.abs(ex-sx)==1&&Math.abs(ey-sy)==2&&table[sx][(ey+sy)/2]==0;
		   case 5:return (Math.abs(ex-sx)==0||Math.abs(ey-sy)==0)&&getnum(ex,ey,sx,sy)==0;
		   case 6:return (Math.abs(ex-sx)==0||Math.abs(ey-sy)==0)&&
				         (table[ex][ey]!=0&&getnum(ex,ey,sx,sy)==1||table[ex][ey]==0&&getnum(ex,ey,sx,sy)==0);
		   case 7:return ey>5&&Math.abs(ex-sx)==0&&ey-sy==-1||ey<6&&Math.abs(ex-sx)+Math.abs(ey-sy)==1&&ey<=sy;
		}
		return false;
	}
	int AImovefour() {
		int re=0;
		for(int w=1;w<10;w++)
			for(int h=1;h<11;h++) 
			if(table[w][h]>7)
			{
				for(int x=1;x<10;x++)
					for(int y=1;y<11;y++) 
						if(canmove(w,h,x,y)) 
						{
							int t=table[x][y];
							if(table[x][y]==1)return -3000;
							int score=-value[t];
							if(score<re) re=score;
						}
			}
		return re;
	}
	int AImovethree() {
		int re=-3000;
		for(int w=1;w<10;w++)
			for(int h=1;h<11;h++) 
			if(table[w][h]>0&&table[w][h]<8)
			{
				for(int x=1;x<10;x++)
					for(int y=1;y<11;y++) 
						if(canmove(w,h,x,y)) 
						{
							if(table[x][y]==8)return 3000;
							int t=table[x][y];
							table[x][y]=table[w][h];
							table[w][h]=0;
							int score=-value[t]+AImovefour();
							if(score>re&&score+value[t]!=-3000) re=score;
							table[w][h]=table[x][y];
							table[x][y]=t;
						}
			}
		return re;
	}
	int AImovetwo() {
		int re=3000;
		for(int w=1;w<10;w++)
			for(int h=1;h<11;h++) 
			if(table[w][h]>7)
			{
				for(int x=1;x<10;x++)
					for(int y=1;y<11;y++) 
						if(canmove(w,h,x,y)) 
						{
							if(table[x][y]==1)return -3000;
							int t=table[x][y];
							table[x][y]=table[w][h];
							table[w][h]=0;
							int score=-value[t]+AImovethree();
							if(score<re&&score+value[t]!=3000) re=score;
							table[w][h]=table[x][y];
							table[x][y]=t;
						}
			}
		return re;
	}
	void AImove() {
		int take_x=0,take_y=0,q_x=0,q_y=0,maxval=-3000;
		int flag=0;
		for(int w=1;w<10;w++) {
			for(int h=1;h<11;h++) 
			if(table[w][h]>0&&table[w][h]<8)
			{
				for(int x=1;x<10;x++) {
					for(int y=1;y<11;y++) 
						if(canmove(w,h,x,y)) 
						{
							int movenum=0;
							for(int i=1;i<10;i++)
								for(int j=1;j<11;j++)
									if(canmove(w,h,i,j))
										movenum-=value[table[i][j]]/10+1;
							int t=table[x][y];
							table[x][y]=table[w][h];
							table[w][h]=0;
							int score=-value[t]+AImovetwo();
							table[w][h]=table[x][y];
							table[x][y]=t;
							for(int i=1;i<10;i++)
								for(int j=1;j<11;j++)
									if(canmove(x,y,i,j))
										movenum+=value[table[i][j]]/10+1;
							if(score+movenum>=maxval&&score+value[t]!=-3000) {
								if(score+movenum>maxval||radom.nextBoolean()) {
									maxval=score+movenum;
									take_x=w;
									take_y=h;
									q_x=x;
									q_y=y;								
								}
							}							
							if(t==8) 
							{
								maxval=3000;
								flag=1;
								take_x=w;
								take_y=h;
								q_x=x;
								q_y=y;
								break;
							}
							
						}
					if(flag==1)break;
				}
				if(flag==1)break;
			}	
			if(flag==1)break;
		}	
		if(maxval<=-3000) {
			JOptionPane.showMessageDialog(null,"你赢了");
			isRuning=false;
		}else {
			if(maxval>=3000) {
				JOptionPane.showMessageDialog(null,"你输了");
				isRuning=false;
			}
			int index=table[take_x][take_y];
			table[take_x][take_y]=0;
			recordstk.push(new Record(take_x,take_y,q_x,q_y,index,table[q_x][q_y]));
			run(take_x,take_y,q_x,q_y,index);
			table[q_x][q_y]=index;
			paintTable();
		}
	}
	public static void main(String[] args) {
		JFrame gameFrame=new JFrame("中国象棋");
		JButton regame=new JButton("重新开始");
		JButton retake=new JButton("悔棋");
		JButton complay=new JButton("电脑出手");
		Chinesechese chinesechese=new Chinesechese();
		retake.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				
				if(chinesechese.recordstk.empty())JOptionPane.showMessageDialog(null,"无法再次悔棋");
				else {
					for(int i=0;i<2;i++) {
						Chinesechese.Record record=chinesechese.recordstk.pop();
						chinesechese.table[record.tox][record.toy]=record.toindex;
						chinesechese.paintTable();
						chinesechese.run(record.tox, record.toy, record.fromx,record.fromy,record.fromindex);
						chinesechese.table[record.fromx][record.fromy]=record.fromindex;
						chinesechese.take_x=chinesechese.take_y=-1;
						chinesechese.paintTable();
						chinesechese.repaint();	
					}

				}
			}
		});
		regame.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				while(chinesechese.recordstk.empty()==false) {
					Chinesechese.Record record=chinesechese.recordstk.pop();
					chinesechese.table[record.tox][record.toy]=record.toindex;
					chinesechese.paintTable();
					chinesechese.run(record.tox, record.toy, record.fromx,record.fromy,record.fromindex);
					chinesechese.table[record.fromx][record.fromy]=record.fromindex;
					chinesechese.take_x=chinesechese.take_y=-1;
					chinesechese.paintTable();
					chinesechese.repaint();
				}
				chinesechese.isRuning=true;
			}
		});
		complay.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				chinesechese.AImove();
			}
		});
		regame.setBounds(670, 450, 100, 50);
		retake.setBounds(670, 350, 100, 50);
		complay.setBounds(670,250, 100, 50);
		gameFrame.setBounds(100, 100, 800, 600);
		gameFrame.setLayout(null);
		gameFrame.add(chinesechese);
		gameFrame.add(regame);
		gameFrame.add(retake);
		gameFrame.add(complay);
		gameFrame.setVisible(true);
		gameFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	public void mouseClicked(MouseEvent e) {
		// TODO Auto-generated method stub
		
	}
	@Override
	public void mousePressed(MouseEvent e) {
		int x=e.getX();
		int y=e.getY();
		int q_x=-1,q_y=-1;
		if(y<=265) {
			q_y=(y+35)/50;
			q_x=(x+25)/50;
		}
		if(y>=285)
		{
			q_y=(y+15)/50;
			q_x=(x+25)/50;
		}
		if(q_x>9||q_y>10||q_x<1||q_y<1) {
			q_x=-1;
			q_y=-1;
		}
		if(q_x!=-1&&q_y!=-1&&isRuning) 
		{
			if(take_x!=-1) 
			{
				if(table[take_x][take_y]>0&&canmove(take_x,take_y,q_x,q_y)) {
					int index=table[take_x][take_y];
					table[take_x][take_y]=0;
					recordstk.push(new Record(take_x,take_y,q_x,q_y,index,table[q_x][q_y]));
					run(take_x,take_y,q_x,q_y,index);
					take_x=-1;take_y=-1;
					table[q_x][q_y]=index;
					Graphics g=this.getGraphics();
					g.fillRect(100, 220, 300, 100);
					g.setColor(Color.green);
					g.setFont(new Font("Dialog",0,35));
					g.drawString(" 等待绿方下棋 ", 130, 285);
					paintTable();
					AImove();
				}
				else
				{
					take_x=-1;take_y=-1;
					paintTable();
					repaint();
				}
			}
			else
			if(table[q_x][q_y]!=0&&take_x==-1) {
				take_x=q_x;
				take_y=q_y;		
				Graphics g=offScreenImage.getGraphics();
				g.setColor(Color.BLACK);
				if(take_y<=5)g.drawRect(take_x*50-25, take_y*50-35, 50, 50);
				else g.drawRect(take_x*50-25, take_y*50-15, 50, 50);
				g.setColor(Color.gray);
				for(int w=1;w<10;w++)
					for(int h=1;h<11;h++) {
						if(canmove(take_x,take_y,w,h)) {
							if(h<=5)g.drawRect(w*50-20, h*50-30, 40, 40);
							else g.drawRect(w*50-20, h*50-10, 40, 40);
						}
					}
				repaint();
			}
			
		}
	}
	public void mouseReleased(MouseEvent e) {
		// TODO Auto-generated method stub
		
	}
	public void mouseEntered(MouseEvent e) {
		// TODO Auto-generated method stub
		
	}
	public void mouseExited(MouseEvent e) {
		// TODO Auto-generated method stub
		
	}
}