chess game

import java.awt.*; import java.applet.Applet; import java.net.URL; import Client; public class Chess extends Frame { String player1; String player2; public int move; public int qizi; Label msg=new Label("Hello, This is the WeiQi game"); public int[][] bd=new int[20][20]; public int[][] rstct=new int[20][20]; Client cl; int movedx,movedy; Button quit=new Button(" Quit the Game "); Chess(String name1,String name2,int can_move,Client mcl) { super(name1+" V.S. "+name2); player1=name1; player2=name2; move=can_move; qizi=can_move; cl=mcl; resize(440,500); movedx=-1; movedy=-1; setLayout(new BorderLayout()); Panel p=new Panel(); p.add(msg); p.add(quit); add("North",p); } public void oppmove(int y,int x) { bd[y][x]=-qizi; move=1; movedx=x; movedy=y; repaint(); }; public void checkSurround(int qi) { int[][] temp=new int[20][20]; for (int i=1;i<=19;i++) for (int j=1;j<=19;j++) if (bd[i][j]==0) temp[i][j]=1; int counter=999; while (counter!=0) { counter=0; for (int i=1;i<=19;i++) for (int j=1;j<=19;j++) if ((temp[i][j]==1) && (bd[i][j]!=-qi)) { if ((i>1) && (temp[i-1][j]!=1)) {temp[i-1][j]=1;counter++;}; if ((i<19) && (temp[i+1][j]!=1)) {temp[i+1][j]=1;counter++;}; if ((j>1) && (temp[i][j-1]!=1)) {temp[i][j-1]=1;counter++;}; if ((j<19) && (temp[i][j+1]!=1)) {temp[i][j+1]=1;counter++;}; }; } for (int i=1;i<=19;i++) for (int j=1;j<=19;j++) if ((temp[i][j]==0) && (bd[i][j]==qi)) { bd[i][j]=0; rstct[i][j]=1; }; }; public void paint(Graphics g) { if (move==-1) msg.setText("Waiting for opponent's move..."); else msg.setText("It is your turn to move !"); for (int i=1;i<=19;i++) g.drawLine(40,(i+1)*20+40,400,(i+1)*20+40); for (int j=1;j<=19;j++) g.drawLine((j+1)*20,80,(j+1)*20,440); for (int i=1;i<=19;i++) for (int j=1;j<=19;j++) if (bd[i][j]==1) g.fillOval((j+1)*20-10,(i+1)*20+40-10,20,20); else if (bd[i][j]==-1) { g.setColor(Color.white); g.fillOval((j+1)*20-10,(i+1)*20+40-10,20,20); g.setColor(Color.black); g.drawOval((j+1)*20-10,(i+1)*20+40-10,20,20); }; if (movedx!=-1) { g.setColor(Color.green); g.drawOval((movedx+1)*20-10, (movedy+1)*20+40-10,20,20); g.setColor(Color.black); }; }; public boolean mouseDown(Event e,int x,int y) { if (move==1) { x=Math.round((float) x/20)-1; y=Math.round((float) (y-40)/20)-1; if ((y>=1) && (y<=19) && (x>=1) && (x<=19) && (bd[y][x]==0) && (rstct[y][x]==0)) { bd[y][x]=qizi; checkSurround(-qizi); checkSurround(qizi); move=-1; cl.sendRequest("Move "+(y*100+x)); repaint(); } else msg.setText("Cannot make that move !"); } else msg.setText("Please wait for your opponent ..."); return super.mouseDown(e,x,y); }; public boolean action(Event e,Object arg) { if (e.target==quit) cl.sendRequest("Endgame"); return super.action(e,arg); }; };