// (c) 1998 Ekkehard Kraemer (ekraemer@pluto.camelot.de)

import java.applet.*;
import java.awt.*;

/**
 * The applet itself - just a button and some start-up logic.
 * <p>
 * <a href="BojngAppl.txt">Source</a>
 *
 * @see BojngFrame
 * @see Bojng
 * @see Images
 */
public class BojngAppl extends Applet implements Runnable
{
    /** Initializes button layout and starts the image loading thread. */
    public BojngAppl()
    {
	super();
	setLayout(new BorderLayout());
	goButton=new Button("Go!");
	goButton.enable(false);
	label=new Label("");
	label.setAlignment(label.CENTER);
	add("Center",goButton);
	add("South",label);
	layout();
	(new Thread(this)).start();
    }
    
    /** Try to load images. */
    public void run()
    {
	label.setText("Loading graphics...");
	try { Thread.sleep(500); } catch (Exception e) {}
	if (!Images.init(this,getDocumentBase(),label))
	{
	    if (Images.errFile==null)
		label.setText("Error loading graphics...");
	    else
		label.setText("Error loading "+Images.errFile+".gif");
	    goButton.setLabel("Retry");
	    goButton.enable(true);
	    return;
	}
	try { Thread.sleep(500); } catch (Exception e) {}
	
	label.setText("");
	goButton.enable(true);
	goButton.setLabel("Go!");
    }

    /** Handles mouse clicks, creates, starts and stops games. 
     *
     * @param e the event */
    public boolean handleEvent(Event e)
    {
	if (e.id==Event.ACTION_EVENT && e.target==goButton)
	{
	    if (Images.imgs==null)
	    {
		goButton.enable(false);
		(new Thread(this)).start();
	    }
	    else
	    {
		if (frame==null)
		{
		    Label l=new Label("---");
		    l.setBackground(Color.black);
		    l.setForeground(Color.green);
		    l.setAlignment(Label.CENTER);
		    //		    Font f=l.getFont();
		    Font nf=new Font("SansSerif",Font.PLAIN,20);
		    l.setFont(nf);
		    Stats s=new Stats();
		    Bojng b=new Bojng(getDocumentBase(),s,l);
		    frame=new BojngFrame(b,s,l);
		    
		    goButton.setLabel("Stop!");
		}
		else
		{		
		    frame.dispose();
		    frame=null;
		    goButton.setLabel("Go!");
		}
	    }
	    return true;
	    
	}
	return false;
    }
       
    protected BojngFrame frame;	// the main game window 
    protected Button goButton;	// the "Go" button 
    protected Label label;	// the status label 
}