import java.awt.Event;
import java.awt.*;
import java.applet.Applet;
import java.lang.Thread;

public class ping extends Applet implements Runnable {
char currkey;
int ypos=100, y1pos=100;
int flag=0, xpos, y,k=0; 
Thread runner;
int score1=0,score2=0;

public void init() {
setBackground(Color.black);
setFont(new Font("Helvetica",Font.BOLD, 15));  
}                           

public void start() {
if(runner == null); {
    runner = new Thread(this);
    runner.start();
  }
}

public void stop() {
if(runner != null); {
    runner.stop();
    runner=null;
  }
}

public void run() {
 while(true) {
  k+=10;
  s(20,1);
  
repeat();
}
}

public void s(int x,int y1){
 for(xpos=x, y=y1; xpos <= this.size().width-5 || y <= this.size().height-8; y+=2,xpos+=2)
 {
  if(y==this.size().height-9 || y==this.size().height-8)
  s1(xpos,y); 
  if(xpos==this.size().width-10 || xpos==this.size().width-9)
  s3(xpos,y);  
  if( (y==y1pos-4||y==y1pos-2||y==y1pos-3||y==y1pos-1||y==y1pos+1||y==y1pos+2||y==y1pos+3||y==y1pos+4||y==y1pos+5||y==y1pos+6||y==y1pos+7||y==y1pos+8||y==y1pos+9||y==y1pos+10||y==y1pos+11||y==y1pos+12||y==y1pos+13||y==y1pos+14||y==y1pos+15||y==y1pos+16||y==y1pos+17 ||y==y1pos+18||y==y1pos+19||y==y1pos+20||y==y1pos+21||y==y1pos+22||y==y1pos+23||y==y1pos+24||y==y1pos+25||y==y1pos+26||y==y1pos+27||y==y1pos+28||y==y1pos+29||y==y1pos+30) && (xpos==244 || xpos==245||xpos==246||xpos==247||xpos==248||xpos==249||xpos==250)) {
  score2++;
  s3(xpos,y);  
  }
  repeat();
 }  
 }

/* from L to R U */
public void s1(int x, int y1) {
 for(xpos=x,y=y;xpos <= this.size().width-5;xpos+=2,y-=2) {
  if(y==5 || y==4)
  s(xpos,y);
  if(xpos==this.size().width-10 || xpos==this.size().width-9)
  s2(xpos,y);
  if( (y==y1pos-4||y==y1pos-2||y==y1pos-3||y==y1pos-1||y==y1pos+1||y==y1pos+2||y==y1pos+3||y==y1pos+4||y==y1pos+5||y==y1pos+6||y==y1pos+7||y==y1pos+8||y==y1pos+9||y==y1pos+10||y==y1pos+11||y==y1pos+12||y==y1pos+13||y==y1pos+14||y==y1pos+15||y==y1pos+16||y==y1pos+17||y==y1pos+18||y==y1pos+19||y==y1pos+20||y==y1pos+21||y==y1pos+22||y==y1pos+23||y==y1pos+24||y==y1pos+25||y==y1pos+26||y==y1pos+27||y==y1pos+28||y==y1pos+29||y==y1pos+30) && (xpos==244||xpos==245||xpos==246||xpos==247||xpos==248||xpos==249||xpos==250)) {
  score2++;
  s2(xpos,y);
  }
  repeat();
  }
}

/* from R to L U */
public void s2(int x, int y1) {
 for(xpos=x,y=y1; y >=0 ; y-=2,xpos-=2) {
  if(y==5 || y==4)
   s3(xpos,y);  
  if(xpos==0 || xpos==1)
   s1(xpos,y);   
   if((y==ypos-4||y==ypos-2||y==ypos-3||y==ypos-1||y==ypos+1||y==ypos+2||y==ypos+3||y==ypos+4||y==ypos+5||y==ypos+6||y==ypos+7||y==ypos+8||y==ypos+9||y==ypos+10||y==ypos+11||y==ypos+12||y==ypos+13||y==ypos+14||y==ypos+15||y==ypos+16||y==ypos+17||y==ypos+18||y==ypos+19||y==ypos+20||y==ypos+21||y==ypos+22||y==ypos+23||y==ypos+24||y==ypos+25||y==ypos+26||y==ypos+27||y==ypos+28||y==ypos+29||y==ypos+30) && (xpos==50||xpos==49||xpos==48||xpos==47||xpos==46||xpos==45)) {
   score1++;     
   s1(xpos,y);
   }      
   repeat();
 }
 }

/* from R to L D */
public void s3(int x, int y1) {
 for(xpos=x,y=y1; xpos >= 0;xpos-=2,y+=2){
   if(y==this.size().height-9 || y==this.size().height-8)
   s4(xpos,y);
   if(xpos==0 || xpos==1)
   s(xpos,y);
   if( (y==ypos-4||y==ypos-2||y==ypos-3||y==ypos-1||y==ypos+1||y==ypos+2||y==ypos+3||y==ypos+4||y==ypos+5||y==ypos+6||y==ypos+7||y==ypos+8||y==ypos+9||y==ypos+10||y==ypos+11||y==ypos+12||y==ypos+13||y==ypos+14||y==ypos+15||y==ypos+16||y==ypos+17||y==ypos+18||y==ypos+19||y==ypos+20||y==ypos+21||y==ypos+22||y==ypos+23||y==ypos+24||y==ypos+25||y==ypos+26||y==ypos+27||y==ypos+28||y==ypos+29||y==ypos+30) && (xpos==50||xpos==49||xpos==48||xpos==47||xpos==46||xpos==45)) {
   score1++;   
   s(xpos,y);
   }
  repeat();
 }
}

/* from R to L U mid */
public void s4(int x, int y1) {
 for(xpos=x,y=y1; xpos >= 0 ; xpos-=2,y-=2) {
  if(xpos==5 || xpos==4)
  s5(xpos,y);
  if(y==5 || y==4)
  s3(xpos,y);    
  if( (y==ypos-4||y==ypos-2||y==ypos-3||y==ypos-1||y==ypos+1||y==ypos+2||y==ypos+3||y==ypos+4||y==ypos+5||y==ypos+6||y==ypos+7||y==ypos+8||y==ypos+9||y==ypos+10||y==ypos+11||y==ypos+12||y==ypos+13||y==ypos+14||y==ypos+15||y==ypos+16||y==ypos+17||y==ypos+18||y==ypos+19||y==ypos+20||y==ypos+21||y==ypos+22||y==ypos+23||y==ypos+24||y==ypos+25||y==ypos+26||y==ypos+27||y==ypos+28||y==ypos+29||y==ypos+30) && (xpos==50||xpos==49||xpos==48||xpos==47||xpos==46||xpos==45)) {
  score1++;   
  s1(xpos,y);
  }
  repeat();
 }
}

/* from L to R U mid */
public void s5(int x, int y1) {
 for(xpos=x,y=y1; y >= 0 ; xpos+=2,y-=2) {
  if(y==5 || y==4){
   k+=5;
   s(xpos,y);
   }
  if(xpos==this.size().width-10 || xpos==this.size().width-9) 
  s4(xpos,y);
  if( (y==y1pos-4||y==y1pos-2||y==y1pos-3||y==y1pos-1||y==y1pos+1||y==y1pos+2||y==y1pos+3||y==y1pos+4||y==y1pos+5||y==y1pos+6||y==y1pos+7||y==y1pos+8||y==y1pos+9||y==y1pos+10||y==y1pos+11||y==y1pos+12||y==y1pos+13||y==y1pos+15||y==y1pos+16||y==y1pos+17||y==y1pos+18||y==y1pos+19||y==y1pos+20||y==y1pos+21||y==y1pos+22||y==y1pos+23||y==y1pos+24||y==y1pos+25||y==y1pos+26||y==y1pos+27||y==y1pos+28||y==y1pos+29||y==y1pos+30) && (xpos==244||xpos==245||xpos==246||xpos==247||xpos==248||xpos==249||xpos==250)) {
  score2++; 
  s2(xpos,y);
  } 
  repeat();
 }

}

public void repeat(){
 repaint();
 pause(20);
 }
 
 public boolean keyDown(Event evt, int key) {
 
  switch(key) {

  case Event.DOWN:
       
        if(ypos >= this.size().height-30) {
           ypos=this.size().height-30;
           break; }
        ypos+=3;
       
       break;
       
  case Event.LEFT:
 
if(runner == null); {
    runner = new Thread(this);
    runner.start();
 }
     
    case Event.UP:
       
       
        if(ypos <= 0){
           ypos=0;
           break;
         }
        ypos-=3;
       
       break;
       
  
    default:
          if(key == 108)
          flag=1;
          else
          flag=0;       
          
    }
  repaint();
  
  return true;
  } 

 

void pause(int time) {
try { Thread.sleep(time); }
catch (InterruptedException e) { }
}

public void paint(Graphics g) {
  g.setColor(Color.red);
  g.fillRect(50,ypos,1,30);
  g.setColor(Color.blue);
  g.fillRect(250,y1pos,1,30);

  g.setColor(Color.black);
  g.fillOval(xpos,y,10,10);
  
  g.setColor(Color.black);
  g.drawString("PlayerA: "+score1,10,10);
  g.drawString("PlayerB: "+score2, 220,10);
}
  public static void main(String[] argumendid){
    Frame f=new Frame();
    f.add(new ping());
    f.setSize(350, 250);
    f.setVisible(true);
  }
}