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