import java.util.*;
import java.awt.event.*;
public class myTimer implements Runnable	//this does basically the same thing that the real javax.swing.Timer class does
{
	protected Vector listeners;
	private int delay;
	private Thread timer;
	
	public myTimer(int delay, ActionListener listener)
	{
		listeners = new Vector();
		this.delay = delay;
		listeners.addElement(listener);
		timer=null;
	}
	
	public void addActionListener(ActionListener listener)
	{
		listeners.addElement(listener);
	}
	
	protected void fireActionPerformed(ActionEvent e)
	{
		for (int i=0; i<listeners.size(); i++)
			((ActionListener)listeners.elementAt(i)).actionPerformed(e);
	}
	public int getDelay()
	{
		return delay;
	}
	
	public boolean isRunning()
	{
		return (timer != null);
	}
	
	public void removeActionListener(ActionListener listener)
	{
		listeners.removeElement(listener);
	}
	
	public void setDelay(int delay)
	{
		this.delay = delay;
	}
	
	public void start()
	{
		timer = new Thread(this);
		timer.start();
	}
	
	public synchronized void stop()
	{
		timer = null;
		notify();
	}
	
	public synchronized void run ()
	{
		while (Thread.currentThread() == timer)
		{
			fireActionPerformed(new ActionEvent(this, 0, ""));
			try
			{
				wait(delay);
			}
			catch (InterruptedException e)
			{
				break;
			}
		}
	}
}