import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Polygon;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;


public class kolos9 extends JFrame{

    MyComponent komponent;
    int MAXN=80;
    int n=0;
    int alfa=61;
    int dalfa=1;
    Timer timer;
    int [] xtab=new int[MAXN];
    int [] ytab=new int[MAXN];
    int D=10;
    class MyComponent extends JComponent{

        @Override
        protected void paintComponent(Graphics g) {
            int w=getWidth();
            int h=getHeight();
            int x=0,y=0;
            int r=((w<h)?w:h)*9/20;
            int x0=w/2;
            int y0=h/2;

            int xx=(int)Math.round(r*Math.sqrt(2)/2);
            g.drawArc(x0-r, y0-r,2*r , 2*r, 90, 180);
            g.drawLine(x0, y0-r, x0, y0+r);
            g.drawLine(x0, y0, x0+xx, y0+xx);
            g.drawLine(x0, y0, x0+xx, y0-xx);
            g.drawLine(x0+xx, y0-xx, x0+xx, y0+xx);


            int pole=(int)Math.round(r*Math.PI);
            int l=(int)Math.round(r*Math.sqrt(2.0));
            int b=r;
            int obw =4*b+pole+l;
            int nb=MAXN*b/obw;
            int na=MAXN*pole/obw;
            int nl=(MAXN-4*nb-na);

            double kat;
            if(n<nb) {
                x=x0;
                y=y0-r*n/nb;

            }else if(n<nb+na)
            {
                kat=Math.PI/2.0-Math.PI*(n-nb)/na;
                x=(int)Math.round(x0-r*Math.cos(kat));
                y=(int)Math.round(y0-r*Math.sin(kat));

            }
            else if(n<2*nb+na)
            {
                x=x0;
                y=y0+r-r*(n-nb-na)/nb;

            }
            else if(n<3*nb+na)
            {
                x=x0+xx*(n-2*nb-na)/nb;
                y=y0+xx*(n-2*nb-na)/nb;
            }
            else if(n<3*nb+na+nl)
            {
                x=x0+xx;
                y=y0+xx-l*(n-3*nb-na)/nl;
            }
            else
            {
                x=x0+xx-xx*(n-3*nb-na-nl)/nb;
                y=y0-xx+xx*(n-3*nb-na-nl)/nb;
            }



            g.setColor(Color.RED);
            g.fillOval(x-6, y-6, 12, 12);
            g.setColor(Color.BLACK);


            super.paintComponent(g);
        }

        private int yKart(int y0, int r, double kat) {
            return (int)Math.round(y0+r*Math.sin(kat));
        }

        private int xKart(int x0, int r, double kat) {
            return (int)Math.round(x0+r*Math.cos(kat));
        }

    }
    public kolos9(String string) {
        super(string);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        Toolkit kit=Toolkit.getDefaultToolkit();
        Dimension d=kit.getScreenSize();
        setBounds(d.width/4, d.height/4, d.width/2, d.height/2);
        add(komponent=new MyComponent());
        timer=new Timer(20,new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                n++;
                //if(alfa>35) zm=-1;
                //if(alfa<0) zm=1;
                //alfa=alfa+zm;
                alfa++;
                if(n>=MAXN)
                    n-=MAXN;
                komponent.repaint();
            }
        });
        timer.start();
        setVisible(true);
    }

    public static void main(String[] args) {

        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                new kolos9("Animek 8");
            }
        });
    }

}