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/*
* $RCSfile$
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any
* kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
* EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
* NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
* USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
* ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
* CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
* REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
* INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or
* intended for use in the design, construction, operation or
* maintenance of any nuclear facility.
*
* $Revision$
* $Date$
* $State$
*/
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
public class TickTockCollision extends Applet {
private SimpleUniverse u = null;
public BranchGroup createSceneGraph() {
// Create the root of the branch graph
BranchGroup objRoot = new BranchGroup();
// Create a Transformgroup to scale all objects so they
// appear in the scene.
TransformGroup objScale = new TransformGroup();
Transform3D t3d = new Transform3D();
t3d.setScale(0.4);
objScale.setTransform(t3d);
objRoot.addChild(objScale);
// Create a bounds for the background and behaviors
BoundingSphere bounds =
new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
// Set up the background
Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f);
Background bg = new Background(bgColor);
bg.setApplicationBounds(bounds);
objScale.addChild(bg);
// Create a pair of transform group nodes and initialize them to
// identity. Enable the TRANSFORM_WRITE capability so that
// our behaviors can modify them at runtime. Add them to the
// root of the subgraph.
TransformGroup objTrans1 = new TransformGroup();
objTrans1.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objScale.addChild(objTrans1);
TransformGroup objTrans2 = new TransformGroup();
objTrans2.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objTrans1.addChild(objTrans2);
// Create the positioning and scaling transform group node.
Transform3D t = new Transform3D();
t.set(0.3, new Vector3d(0.0, -1.5, 0.0));
TransformGroup objTrans3 = new TransformGroup(t);
objTrans2.addChild(objTrans3);
// Create a simple shape leaf node, add it to the scene graph.
objTrans3.addChild(new ColorCube());
// Create a new Behavior object that will perform the desired
// rotation on the specified transform object and add it into
// the scene graph.
Transform3D yAxis1 = new Transform3D();
yAxis1.rotX(Math.PI/2.0);
Alpha tickTockAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE |
Alpha.DECREASING_ENABLE,
0, 0,
5000, 2500, 200,
5000, 2500, 200);
RotationInterpolator tickTock =
new RotationInterpolator(tickTockAlpha, objTrans1, yAxis1,
-(float) Math.PI/2.0f,
(float) Math.PI/2.0f);
tickTock.setSchedulingBounds(bounds);
objTrans2.addChild(tickTock);
// Create a new Behavior object that will perform the desired
// rotation on the specified transform object and add it into
// the scene graph.
Transform3D yAxis2 = new Transform3D();
Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE,
0, 0,
4000, 0, 0,
0, 0, 0);
RotationInterpolator rotator =
new RotationInterpolator(rotationAlpha, objTrans2, yAxis2,
0.0f, (float) Math.PI*2.0f);
rotator.setSchedulingBounds(bounds);
objTrans2.addChild(rotator);
// Now create a pair of rectangular boxes, each with a collision
// detection behavior attached. The behavior will highlight the
// object when it is in a state of collision.
Group box1 = createBox(0.3, new Vector3d(-1.3, 0.0, 0.0));
Group box2 = createBox(0.3, new Vector3d( 1.3, 0.0, 0.0));
objScale.addChild(box1);
objScale.addChild(box2);
// Have Java 3D perform optimizations on this scene graph.
objRoot.compile();
return objRoot;
}
private Group createBox(double scale, Vector3d pos) {
// Create a transform group node to scale and position the object.
Transform3D t = new Transform3D();
t.set(scale, pos);
TransformGroup objTrans = new TransformGroup(t);
// Create a simple shape leaf node and add it to the scene graph
Shape3D shape = new Box(0.5, 5.0, 1.0);
objTrans.addChild(shape);
// Create a new ColoringAttributes object for the shape's
// appearance and make it writable at runtime.
Appearance app = shape.getAppearance();
ColoringAttributes ca = new ColoringAttributes();
ca.setColor(0.6f, 0.3f, 0.0f);
app.setCapability(app.ALLOW_COLORING_ATTRIBUTES_WRITE);
app.setColoringAttributes(ca);
// Create a new Behavior object that will perform the collision
// detection on the specified object, and add it into
// the scene graph.
CollisionDetector cd = new CollisionDetector(shape);
BoundingSphere bounds =
new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
cd.setSchedulingBounds(bounds);
// Add the behavior to the scene graph
objTrans.addChild(cd);
return objTrans;
}
public TickTockCollision() {
}
public void init() {
setLayout(new BorderLayout());
GraphicsConfiguration config =
SimpleUniverse.getPreferredConfiguration();
Canvas3D c = new Canvas3D(config);
add("Center", c);
// Create a simple scene and attach it to the virtual universe
BranchGroup scene = createSceneGraph();
u = new SimpleUniverse(c);
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
u.getViewingPlatform().setNominalViewingTransform();
u.addBranchGraph(scene);
}
public void destroy() {
u.cleanup();
}
//
// The following allows TickTockCollision to be run as an application
// as well as an applet
//
public static void main(String[] args) {
new MainFrame(new TickTockCollision(), 700, 700);
}
}
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