// Ekraanil on ring. Hiirega ringil klikkimisel sõidab ratas minema ja klikitud 
// punkt jätab jälje järgi.
import java.awt.*;
import java.awt.event.*;
public class Ratas extends Frame implements MouseListener{
   int ax, ay;
   int x=100;
   int y=100;
   int rkorgus=100;
   int rlaius=100;
   double nurk=0;
   double raadius=50;
   double samm=0.05;
   boolean status;
	public Ratas(){
//		Frame f=new Frame("ratas"); pole vaja sest implements Frame
		setTitle("ratas");
		setSize(500,300);
		setVisible(true);
		status=true;
		addWindowListener(
		  new WindowAdapter(){
		    public void windowClosing(WindowEvent e){
		      System.exit(0);
		    }
		  } //windowadapter
		); //aken
	   addMouseListener(this);

    }
    public void paint(Graphics g){
		g.setColor(new Color(200,100,100));
		g.setColor(Color.blue);
		g.fillOval(x,y,rkorgus,rlaius);
		g.setColor(Color.blue);
		

		} //class ratas
	
	public void mousePressed(MouseEvent e){
	  if (status=true){
	  status=false;
	  ax=e.getX();
	  ay=e.getY();
	  Graphics g=getGraphics();
	  g.setColor(Color.white);
      g.fillRect(1,1,500,300);
	  	for(int x=ax; x<500; x=x+3){
			y=ay;
		  	g.setColor(Color.white);
			g.fillRect(1,1,500,300);
			g.setColor(Color.red);
			g.fillOval(ax,ay,5,5);  
			g.setColor(Color.blue);
			g.fillOval(x,y,rkorgus,rlaius);
			try{
			Thread.sleep(1);
			} //try
			catch(Exception exp){
			System.out.println("exception at sleep ");
			} //catch
			int px=((x+50)+(int)(raadius*Math.cos(nurk))-5);
			System.out.println(nurk);
			int py=((y+50)+(int)(raadius*Math.sin(nurk))-5);
			nurk=nurk+samm;
		    if(nurk>2*Math.PI)nurk-=2*Math.PI;
			g.setColor(Color.black);
		    g.fillOval(px, py, 4, 4);
						
		}//for
		for(int x=ax; x<500; x=x+3){
		int px=((x+50)+(int)(raadius*Math.cos(nurk))-5);
		int py=((y+50)+(int)(raadius*Math.sin(nurk))-5);
		nurk=nurk+samm;
		if(nurk>2*Math.PI)nurk-=2*Math.PI;
		g.setColor(Color.black);
		g.fillOval(px, py, 4, 4);
		}//for
	  }else{
	  	System.out.println("else status false");
	  	status=true;
		Graphics g=getGraphics();
		g.fillRect(1,1,500,300);
        g.setColor(Color.blue);
		g.fillOval(x,y,rkorgus,rlaius);
	    }//if status
	}//Mouseevent
	public void mouseReleased(MouseEvent e){}
	public void mouseEntered(MouseEvent e){}
	public void mouseExited(MouseEvent e){}
	public void mouseClicked(MouseEvent e){}
	

	
	public static void main(String argumendid[]){
	  new Ratas();
   }
   
}