home *** CD-ROM | disk | FTP | other *** search
Java Source | 1997-07-13 | 3.0 KB | 95 lines |
- /*
- * Copyright (c) 1995-1997 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 java.awt.*;
- import java.awt.event.MouseAdapter;
- import java.awt.event.MouseEvent;
-
- public class RaceApplet1_1 extends java.applet.Applet implements Runnable {
-
- final static int NUMRUNNERS = 2;
- final static int SPACING = 20;
-
- Runner[] runners = new Runner[NUMRUNNERS];
-
- Thread updateThread = null;
-
- public void init() {
- String raceType = getParameter("type");
- for (int i = 0; i < NUMRUNNERS; i++) {
- runners[i] = new Runner();
- if (raceType.compareTo("unfair") == 0)
- runners[i].setPriority(i+2);
- else
- runners[i].setPriority(2);
- }
- if (updateThread == null) {
- updateThread = new Thread(this, "Thread Race");
- updateThread.setPriority(NUMRUNNERS+2);
- }
- addMouseListener(new MyAdapter());
- }
-
- class MyAdapter extends MouseAdapter {
- public void mouseClicked(MouseEvent evt) {
- 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.setColor(Color.lightGray);
- g.fillRect(0, 0, getSize().width, getSize().height);
- g.setColor(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 (Thread.currentThread() == updateThread) {
- repaint();
- try {
- Thread.sleep(10);
- } catch (InterruptedException e) {
- }
- }
- }
-
- public void stop() {
- for (int i = 0; i < NUMRUNNERS; i++) {
- if (runners[i].isAlive()) {
- runners[i] = null;
- }
- }
- if (updateThread.isAlive()) {
- updateThread = null;
- }
- }
- }
-