diff options
Diffstat (limited to 'src/TickTockCollision/TickTockCollision.java')
| -rw-r--r-- | src/TickTockCollision/TickTockCollision.java | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/TickTockCollision/TickTockCollision.java b/src/TickTockCollision/TickTockCollision.java new file mode 100644 index 0000000..1303fb1 --- /dev/null +++ b/src/TickTockCollision/TickTockCollision.java @@ -0,0 +1,217 @@ +/* + * $RCSfile$ + * + * Copyright (c) 2004 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); + } +} |