/*
* @(#)KeyNavigatorApp.java 1.0 99/04/15 11:42:40
*
* Copyright (c) 1996-1999 Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
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* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
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*
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* redistribute the Software for such purposes.
*/
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
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.*;
import java.awt.event.*;
import java.awt.AWTEvent;
import java.util.Enumeration;
import com.sun.j3d.utils.behaviors.keyboard.*;
// KeyNavigatorApp renders a simple landscape
public class KeyNavigatorApp extends Applet {
Shape3D createPyramid(){
IndexedTriangleArray pyGeom =
new IndexedTriangleArray(5, GeometryArray.COORDINATES
| GeometryArray.COLOR_3
, 12);
pyGeom.setCoordinate(0, new Point3f( 0.0f, 0.7f, 0.0f ));
pyGeom.setCoordinate(1, new Point3f( -0.4f, 0.0f, -0.4f ));
pyGeom.setCoordinate(2, new Point3f( -0.4f, 0.0f, 0.4f ));
pyGeom.setCoordinate(3, new Point3f( 0.4f, 0.0f, 0.4f ));
pyGeom.setCoordinate(4, new Point3f( 0.4f, 0.0f, -0.4f ));
pyGeom.setCoordinateIndex( 0, 0);
pyGeom.setCoordinateIndex( 1, 1);
pyGeom.setCoordinateIndex( 2, 2);
pyGeom.setCoordinateIndex( 3, 0);
pyGeom.setCoordinateIndex( 4, 2);
pyGeom.setCoordinateIndex( 5, 3);
pyGeom.setCoordinateIndex( 6, 0);
pyGeom.setCoordinateIndex( 7, 3);
pyGeom.setCoordinateIndex( 8, 4);
pyGeom.setCoordinateIndex( 9, 0);
pyGeom.setCoordinateIndex(10, 4);
pyGeom.setCoordinateIndex(11, 1);
Color3f c = new Color3f(0.6f, 0.5f, 0.55f);
pyGeom.setColor(0, c);
pyGeom.setColor(1, c);
pyGeom.setColor(2, c);
pyGeom.setColor(3, c);
pyGeom.setColor(4, c);
Shape3D pyramid = new Shape3D(pyGeom);
return pyramid;
}
Shape3D createLand(){
LineArray landGeom = new LineArray(44, GeometryArray.COORDINATES
| GeometryArray.COLOR_3);
float l = -50.0f;
for(int c = 0; c < 44; c+=4){
landGeom.setCoordinate( c+0, new Point3f( -50.0f, 0.0f, l ));
landGeom.setCoordinate( c+1, new Point3f( 50.0f, 0.0f, l ));
landGeom.setCoordinate( c+2, new Point3f( l , 0.0f, -50.0f ));
landGeom.setCoordinate( c+3, new Point3f( l , 0.0f, 50.0f ));
l += 10.0f;
}
Color3f c = new Color3f(0.1f, 0.8f, 0.1f);
for(int i = 0; i < 44; i++) landGeom.setColor( i, c);
return new Shape3D(landGeom);
}
public BranchGroup createSceneGraph(SimpleUniverse su) {
// Create the root of the branch graph
TransformGroup vpTrans = null;
BranchGroup objRoot = new BranchGroup();
Vector3f translate = new Vector3f();
Transform3D T3D = new Transform3D();
TransformGroup TG = null;
objRoot.addChild(createLand());
SharedGroup share = new SharedGroup();
share.addChild(createPyramid());
float[][] position = {{ 0.0f, 0.0f, -3.0f},
{ 6.0f, 0.0f, 0.0f},
{ 6.0f, 0.0f, 6.0f},
{ 3.0f, 0.0f, -10.0f},
{ 13.0f, 0.0f, -30.0f},
{-13.0f, 0.0f, 30.0f},
{-13.0f, 0.0f, 23.0f},
{ 13.0f, 0.0f, 3.0f}};
for (int i = 0; i < position.length; i++){
translate.set(position[i]);
T3D.setTranslation(translate);
TG = new TransformGroup(T3D);
TG.addChild(new Link(share));
objRoot.addChild(TG);
}
vpTrans = su.getViewingPlatform().getViewPlatformTransform();
translate.set( 0.0f, 0.3f, 0.0f);
T3D.setTranslation(translate);
vpTrans.setTransform(T3D);
KeyNavigatorBehavior keyNavBeh = new KeyNavigatorBehavior(vpTrans);
keyNavBeh.setSchedulingBounds(new BoundingSphere(new Point3d(),1000.0));
objRoot.addChild(keyNavBeh);
// Let Java 3D perform optimizations on this scene graph.
objRoot.compile();
return objRoot;
} // end of CreateSceneGraph method of KeyNavigatorApp
public KeyNavigatorApp() {
setLayout(new BorderLayout());
Canvas3D canvas3D = new Canvas3D(null);
add("Center", canvas3D);
// SimpleUniverse is a Convenience Utility class
SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
BranchGroup scene = createSceneGraph(simpleU);
simpleU.addBranchGraph(scene);
} // end of KeyNavigatorApp (constructor)
// The following allows this to be run as an application
// as well as an applet
public static void main(String[] args) {
System.out.print("KeyNavigatorApp.java \n- a demonstration of the KeyNavigatorBehavior ");
System.out.println("class to provide keyboard navigation in a Java 3D scene.");
System.out.println("When the app loads, you can use the arrow keys to move.");
System.out.println("This is an example progam from The Java 3D API Tutorial.");
System.out.println("The Java 3D Tutorial is available on the web at:");
System.out.println("http://java.sun.com/products/java-media/3D/collateral");
Frame frame = new MainFrame(new KeyNavigatorApp(), 256, 256);
} // end of main (method of KeyNavigatorApp)
} // end of class KeyNavigatorApp