import java.applet.Applet;
import java.awt.event.*;
import java.awt.*;

public class Auto3 extends Applet implements KeyListener, Runnable{

  double x=100, y=100;
  double nurk=0, pikkus=30, samm=5;
  boolean algus=true;

  public Auto3(){
    addKeyListener(this);
  }

  public void paint(Graphics g){
    double x2=x+pikkus*Math.cos(nurk);
    double y2=y+pikkus*Math.sin(nurk);
    g.drawLine((int)x, (int)y, (int)x2, (int)y2);
    g.drawOval((int)x-5, (int)y-5, 10, 10);
  }

  public void run(){
    while(true){
      x=x+Math.cos(nurk)*samm;
      y=y+Math.sin(nurk)*samm;
      repaint();
      try{Thread.sleep(200);} catch(Exception ex){}
    }
  }

  public void keyPressed(KeyEvent e){
    if(algus){
       new Thread(this).start();
       algus=false;
    }
    int kood=e.getKeyCode();
    if(kood==KeyEvent.VK_LEFT)nurk=nurk-0.1;
    if(kood==KeyEvent.VK_RIGHT)nurk=nurk+0.1;
    if(kood==KeyEvent.VK_UP){
       samm=samm+1;
    }
    if(kood==KeyEvent.VK_DOWN){
       samm=samm-1;
    }
  }

  public void keyReleased(KeyEvent e){}

  public void keyTyped(KeyEvent e){}
  

  public static void main(String argumendid[]){
    Frame f=new Frame("Klahvikuular");
    f.add(new Auto3());
    f.setSize(300, 300);
    f.setVisible(true);  
  }

}