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/**
* Make a donation http://sourceforge.net/donate/index.php?group_id=98797
* Microcrowd.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact Josh DeFord jdeford@microcrowd.com
*/
package com.microcrowd.loader.java3d.max3ds.chunks;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.PointLight;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
import javax.vecmath.Vector3f;
import com.microcrowd.loader.java3d.max3ds.ChunkChopper;
import com.microcrowd.loader.java3d.max3ds.ChunkMap;
/**
* Lights to be placed in a scene.
* Only point lights and target spot lights are supported.
* All the default parameters are used for lights as well.
* Only position is specified.
*/
public class LightChunk extends Chunk
{
private Vector3f currentPosition;
/**
* This is called by the chunk chopper before any of the chunk's
* subchunks are loaded. Any data loaded that may need to be
* used later by superchunks should be stored in
* the chunk chopper via {@link ChunkChopper#pushData}
*
* @param chopper used to store the position of the light.
*/
public void loadData(ChunkChopper chopper)
{
currentPosition = chopper.getVector();
TransformGroup group = chopper.getGroup();
Transform3D transform = new Transform3D();
group.getTransform(transform);
transform.setTranslation(currentPosition);
group.setTransform(transform);
chopper.pushData(chopper.getID(), currentPosition);
}
/**
* Gets the data put into the chopper by the subchunks
* and creates a light, adding it to the scene as a named object.
* @param chopper the ChunkChopper containing sub chunk data.
*/
public void initialize(ChunkChopper chopper)
{
Color3f color = (Color3f)chopper.popData(ChunkMap.COLOR);
PointLight light = (PointLight)chopper.popData(ChunkMap.SPOTLIGHT);
if(light == null)
{
light = new PointLight();
chopper.addLightNode(light);
}
light.setColor(color);
light.setInfluencingBounds(new BoundingSphere(new Point3d(0,0,0), 3000));
chopper.getGroup().addChild(light);
}
}
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