import java.awt.*;
import fallingletter;
import java.awt.event.*;

import java.awt.*;
import basicletter;
import java.awt.event.*;

public class BasicHello extends java.applet.Applet implements Runnable
{
	basicletter[] letters;
	int count, draggingletter;
	Thread animator;
	String greeting;
	//creates an array of basicletters and puts them evenly spaced across the top of the applet
	public void init()
	{
		greeting = "Hello, World!";		
		letters = new basicletter[greeting.length()];
		for (int i=0; i<greeting.length(); i++)
			letters[i]=new basicletter(greeting.charAt(i), 20+20*i, 0);
		setBackground(Color.black);
		count=0;
		draggingletter=-1;
	}
	//draws 1 letter for every 20 animation frames until all of them are drawn
	public void paint(Graphics g)
	{
		g.setFont(new Font("Serif", Font.BOLD, 20));
		for (int i = 0; i<greeting.length() && i<count/20; i++)
			letters[i].draw(g);
	}
	//the rest of this relates to implementing Runnable, we'll talk about it later
	public void start()
	{
		animator = new Thread(this);
		animator.start();
	}
	
	public synchronized void stop()
	{
		animator = null;
		notify();
	}
	
	public synchronized void run()
	{
		while (Thread.currentThread() == animator)
		{
			for (int i=0; i<greeting.length() && i<count/20; i++)	//update each letter up to one for every 20 animation frames
				letters[i].update();
			count++;			//increment the frame counter
			repaint();			//refresh
			try
			{
				wait (40);		//delay of about 40 milliseconds
			}
			catch (InterruptedException e)
			{
				break;
			}
		}
	}
}