package demo1;

import java.applet.*;
import java.awt.*;
import java.awt.image.*;
import java.io.*;
import javax.imageio.*;
import javax.swing.*;


public class DemoApplet extends JApplet implements Runnable {
	private PictureLabel pLabel;
	private MoveablePicture mPicture;
	
	/**
	 * Inicializuje applet a sputí animaci.
	 */
	public void init() {
		pLabel = new PictureLabel(loadBackground());
		mPicture = new MoveablePicture(pLabel,loadLogo());
		pLabel.addMoveablePicture(mPicture);
		
		this.getContentPane().setLayout(new BorderLayout());
		this.getContentPane().add(pLabel, BorderLayout.CENTER);
		this.start();
	}
	
	public void start(){
		(new Thread(this)).start();
	}
	public void run() {
		// rotuj logo nekde kolem stredu
		float alpha = 0;
		float radius = 80;
		int x;
		int y;
		while (true) {
			x = (int) (radius * Math.cos(alpha)) + 100;
			y = (int) (radius * Math.sin(alpha)) + 90;
			mPicture.setLocation(x,y);
			alpha += 0.01f;
			try { Thread.sleep(10); }
			catch (InterruptedException e) {;}
		}
	}
	
	private Image loadLogo() {
		return this.getImage(this.getCodeBase(),"images/javalogo.gif");
  		
	}
	
	private Image loadBackground() {
		return this.getImage(this.getCodeBase(),"images/ground.gif");
		
	}
}

// pro appletviewer :
//
// <APPLET code="demo1.DemoApplet.class" WIDTH = 400 HEIGHT = 400></APPLET>
//
//