import java.awt.*;
import fallingletter;	//fallingletter allows some interaction with the letters, changing colors and dragging/dropping
import java.awt.event.*;
import myTimer;		//class I wrote that does basically what javax.swing.Timer does

public class HelloMyTimer extends java.applet.Applet implements MouseListener, MouseMotionListener, ActionListener
{
	fallingletter[] letters;
	int count, draggingletter;
	myTimer animator;
	String greeting;

	public void init()
	{
		greeting = "Hello, World!";		
		letters = new fallingletter[greeting.length()];
		for (int i=0; i<greeting.length(); i++)
			letters[i]=new fallingletter(greeting.charAt(i), 20+20*i, 0);
		setBackground(Color.black);
		count=0;
		draggingletter=-1;
		addMouseListener(this);
		addMouseMotionListener(this);
		animator = new myTimer(30, this);
		animator.start();
	}

	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);
	}
	//checks if you clicked in any of the letters and changes their color if you did
	public void mouseClicked(MouseEvent event)
	{
		for (int i=0; i<greeting.length(); i++)
			if (letters[i].clickedin(event.getPoint()))
				letters[i].changeColor();
	}
	//"picks up" a letter if you pressed the mouse near it
	public void mousePressed(MouseEvent event)
	{
		for (int i=0; i<greeting.length(); i++)
			if (letters[i].clickedin(event.getPoint()))
			{
				draggingletter=i;
				break;
			}
	}
	//releases the letter by setting the index of the letter you're moving to -1
	public void mouseReleased(MouseEvent event)
	{
		draggingletter=-1;
	}

	public void mouseEntered(MouseEvent event){}
	public void mouseExited(MouseEvent event){}
	public void mouseMoved(MouseEvent event){}
	//makes the letter update according to where you drag the letter if you have a letter
	public void mouseDragged(MouseEvent event)
	{
		if (draggingletter>=0)
			letters[draggingletter].update(event.getX(), event.getY());
	}
	//updates all the letters except the dragging letter, called by the timer
	public void actionPerformed(ActionEvent e)
	{
		for (int i=0; i<greeting.length() && i<count/20; i++)
			if (i!=draggingletter)
				letters[i].update();
		count++;
		repaint();
	}
}