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package tesseract.objects;
import java.util.List;
import javax.media.j3d.GeometryArray;
import javax.media.j3d.Node;
import javax.media.j3d.Shape3D;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Quat4f;
import javax.vecmath.Vector3f;
import alden.CollidableObject;
import com.sun.j3d.utils.geometry.Primitive;
/**
* This class is the parent of all objects in the world.
*
* Note: The constructor of a child class must add its shape
* to the transform group for it to be visible.
*
* @author Jesse Morgan
*/
public class PhysicalObject extends CollidableObject {
protected boolean collidable;
protected boolean mySelected;
public PhysicalObject(final Vector3f thePosition, final float mass) {
super(mass);
this.position.set(thePosition);
collidable = true;
mySelected = false;
}
public List<PhysicalObject> spawnChildren(final float duration) {
return null;
}
public void addForce(final Vector3f force) {
this.forceAccumulator.add(force);
}
public void updateState(final float duration) {
if (!mySelected) {
super.updateState(duration);
this.updateTransformGroup();
}
}
public void setShape(final Node node) {
TG.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
TG.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
node.setUserData(this);
node.setCapability(javax.media.j3d.Node.ALLOW_BOUNDS_READ);
node.setCapability(javax.media.j3d.Node.ALLOW_LOCAL_TO_VWORLD_READ);
if (node instanceof Primitive) {
Primitive prim = (Primitive) node;
int index = 0;
Shape3D shape;
while ((shape = prim.getShape(index++)) != null) {
shape.setCapability(Shape3D.ALLOW_GEOMETRY_READ);
shape.setCapability(Node.ALLOW_LOCAL_TO_VWORLD_READ);
shape.setCapability(Node.ALLOW_LOCAL_TO_VWORLD_READ);
for (int i = 0; i < shape.numGeometries(); i++) {
shape.getGeometry(i).setCapability(
GeometryArray.ALLOW_COUNT_READ);
shape.getGeometry(i).setCapability(
GeometryArray.ALLOW_COORDINATE_READ);
}
}
}
super.setShape(node);
}
public void resolveCollisions(final PhysicalObject other) {
if (collidable && other.collidable) {
super.resolveCollisions(other);
}
}
/**
* TODO: Test code to mess with the orientation of an object.
*/
public void setRotation() {
this.orientation.x = (float) (Math.PI / 4);
this.orientation.w = 1;
//this.angularVelocity.x = 0.5f;
}
/**
* @return The position of the object.
*/
public Vector3f getPosition() {
return position;
}
/**
* @return The orientation of the object.
*/
public Quat4f getOrientation() {
return this.orientation;
}
/**
* When set to true, the object will ignore all updateState calls.
*
* @param b true to ignore updateState. False to heed.
*/
public void selected(final boolean b) {
mySelected = b;
}
/**
* Update the transform group after changing the position.
*/
public void updateTranformGroup() {
super.updateTransformGroup();
}
}
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