import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;
import javax.swing.*;
public class mobile extends Applet implements Runnable,KeyListener
	  {
	  double nurk=0;
	  double raadius=50;
	  double samm=0.02;
	  int ooteaeg=20; //ms
	  boolean veel=true;
	
	  public mobile()
	  	{
	    new Thread(this).start();
	    addKeyListener(this);  
      	}
	  public void joonista()
	 	   {
		   Graphics g=this.getGraphics();
		   if(g!=null)
			    {
			    g.setColor(Color.white);
			    g.fillRect(0, 0, getSize().width, getSize().height);
			    int keskx=getSize().width/2;
			    int kesky=getSize().height/2;
			    g.setColor(Color.black);
			    g.drawOval(
		        keskx+(int)(raadius*Math.cos(nurk))-5,
		        kesky+(int)(raadius*Math.sin(nurk))-5,
		        10, 10);
		        nurk=nurk+samm;
		        if(nurk>2*Math.PI)
		        	{nurk-=2*Math.PI;}
		        }
		   }
	  	
	  public void run()
	  	{
	    while(veel)
	    	{
	      	joonista();
	      	try
	      		{Thread.sleep(ooteaeg);} 
	      	catch(Exception e)
	      		{e.printStackTrace();}
	    	}
	    }
		 
	   
  	   public void keyPressed(KeyEvent syndmus) 
  	   		{ 
          	int nupp = syndmus.getKeyCode();
          	if (nupp == KeyEvent.VK_RIGHT) 
          		{
          		ooteaeg+=1;
          		}
      		if (nupp == KeyEvent.VK_LEFT) 
      			{
		        if (ooteaeg>5)
			       	{
			       	ooteaeg-=1;
			       	}
			    }
			}
      
	  public void keyReleased(KeyEvent syndmus) 
   			{ 
   			}
   	  public void keyTyped(KeyEvent evt) 
   	  		{
   	  		}
   	  	
	  public static void main(String argumendid[])
	  	{
	    Frame f=new Frame();
	    f.add(new mobile());
	    f.setSize(200, 200);
	    f.setVisible(true);
	  	
	  	}
	}