// WelcomeNagataniSub.java
// Welcome Nagatani Web Page sub-Applet
// by nagatani@eken.phys.nagoya-u.ac.jp

import java.applet.Applet;
import java.awt.*;
import java.net.URL;
import java.util.Vector;

public class WelcomeNagataniSub extends Applet {
	
	Vector		Objects;
	StringRoll	StRoll;
	D3Polys		polys;
	
	MediaTracker	MT;
	
	public void init () {
		
		resize (size().width, size().height);
		MT = new MediaTracker (this);
		
		URL	ImageURL;
		try {
			ImageURL = new URL (getDocumentBase(), "Welcome/");
		} catch (java.net.MalformedURLException e) {
			ImageURL = getDocumentBase();
		}
		
		Objects = new Vector (20,10);
		
		for (int n = 0 ; n < 5 ; n++) {
			Image	image
				 = getImage (ImageURL, "O" + (n+1) +".gif");
			MT.addImage (image, 0);
			Objects.addElement (new StringFreeRun (image, this));
			Objects.addElement (new StringFlying (image, this));
			Objects.addElement (new StringFlying (image, this));
			Objects.addElement (new StringFlying (image, this));
		}
		
		Image	image = getImage (ImageURL, "WelcomeNagatani.gif");
		MT.addImage (image, 0);
		StRoll =  new StringRoll (image, 50, 0, this);
		
		polys = new D3Polys (8);
	}
	
	public void paint (Graphics g) {
		
		// Clear Region
		g.setColor (getBackground());
		g.fillRect (0, 0, size().width, size().height);
		g.setColor (getForeground());
		
		// Wait for Load Image
		try {
			MT.waitForID (0);
		} catch (InterruptedException e) {}
		
		// Paint Back Objects
		for (int n = 0 ; n < Objects.size () ; n++)
			((SGObject) (Objects.elementAt (n))). paint (g, this);
		
		// Paint Main Objects
		D3VecToD2	D3D2 = new D3VecToD2 (150, 125, 85.0, 1.5);
		polys.paintByDepth (g, D3D2, -1000, 0);
		StRoll.paint (g, this);
		polys.paintByDepth (g, D3D2, 0, 1000);
		
	}
	public void move () {
		
		for (int n = 0 ; n < Objects.size () ; n++)
			((SGObject) (Objects.elementAt (n))). move ();
		
		StRoll.move ();
		polys.move ();
	}
}