kolos

//wariant 13
package jpp;

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 zaliczenie extends JFrame{

	MyComponent komponent;
	int MAXN=100;
	int n=0;
	Timer timer;
	int alfa = 0;
	int [] xtab=new int[MAXN];
	int [] ytab=new int[MAXN];
	class MyComponent extends JComponent{

		@Override
		protected void paintComponent(Graphics g) {
			int w=getWidth();
			int h=getHeight();
			int x=0,y=0;
			int a=w/2;
			int b=h/2;
			if(a<b)
				b=a;
			else
				a=b;
			int c=(int)Math.round(Math.PI*a/2.0);
			int obw=a+b+c;

			g.drawLine(w/4, h/4, w/4+a, h/4);
			g.drawLine(w/4, h/4, w/4, h/4+a);
			g.drawArc(w/4-a, h/4-a, a*2, a*2, 270, 90);


			int na=MAXN*a/obw;
			int nb=MAXN*b/obw;
			int nc=MAXN-na-nb;

			if(n<na){
				x=w/4+a*n/na;
				y=h/4;
			}
			else if(n<na+nc){
				double kat=Math.PI/2.0*(n-na)/nc;
				x=w/4+(int)Math.round(a*Math.cos(kat));
				y=h/4+(int)Math.round(a*Math.sin(kat));
			}else{
				x=w/4;
				y=h*3/4-b*(n-na-nc)/nb;
			}
			g.fillOval(x-6, y-6, 12, 12);
			g.setColor(Color.BLACK);
			super.paintComponent(g);
		}

	}
	public zaliczenie(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(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 zaliczenie("Wariant 13");
			}
		});
	}

}