/*
 * Copyright (c) 1994 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL purposes and without
 * fee is hereby granted provided that this copyright notice
 * appears in all copies. Please refer to the file "copyright.html"
 * for further important copyright and licensing information.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */

import browser.Applet;
import awt.*;

class RaceApplet extends Applet implements Runnable {

    final static int NUMRUNNERS = 2;
    final static int SPACING = 20;

    Runner runners[] = new Runner[NUMRUNNERS];

    Thread updateThread;

    public void init() {
	String raceType = getAttribute("type");
	for (int i = 0; i < NUMRUNNERS; i++) {
	    runners[i] = new Runner();
	    if (raceType.compareTo("unfair") == 0)
	    	runners[i].setPriority(i+1);
	    else
	    	runners[i].setPriority(2);
        }
        if (updateThread == null) {
            updateThread = new Thread(this, "Thread Race");
            updateThread.setPriority(NUMRUNNERS+1);
        }
    }

    public void mouseDown(int x, int y) {
	if (!updateThread.isAlive())
            updateThread.start();
	for (int i = 0; i < NUMRUNNERS; i++) {
	    if (!runners[i].isAlive())
	        runners[i].start();
	}
    }

    public void paint(Graphics g) {
        g.setForeground(Color.lightGray);
        g.fillRect(0, 0, width, height);
        g.setForeground(Color.black);
        for (int i = 0; i < NUMRUNNERS; i++) {
	    int pri = runners[i].getPriority();
	    g.drawString(new Integer(pri).toString(), 0, (i+1)*SPACING);
	}
        update(g);
    }

    public void update(Graphics g) {
        for (int i = 0; i < NUMRUNNERS; i++) {
	    g.drawLine(SPACING, (i+1)*SPACING, SPACING + (runners[i].tick)/1000, (i+1)*SPACING);
	}
    }

    public void run() {
        while (updateThread != null) {
            repaint();
            updateThread.sleep(10);
        }
    }    

    public void stop() {
	for (int i = 0; i < NUMRUNNERS; i++) {
	    if (runners[i].isAlive()) {
	        runners[i].stop();
	        runners[i] = null;
	    }
        }
	if (updateThread.isAlive()) {
            updateThread.stop();
            updateThread = null;
	}
    }
}