/*
* Copyright (c) 2009-2012 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions 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 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.bullet.collision.shapes;
import com.jme3.export.InputCapsule;
import com.jme3.export.JmeExporter;
import com.jme3.export.JmeImporter;
import com.jme3.export.OutputCapsule;
import com.jme3.scene.Mesh;
import com.jme3.scene.VertexBuffer.Type;
import com.jme3.util.BufferUtils;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
import java.util.logging.Level;
import java.util.logging.Logger;
public class HullCollisionShape extends CollisionShape {
private float[] points;
// protected FloatBuffer fbuf;
public HullCollisionShape() {
}
public HullCollisionShape(Mesh mesh) {
this.points = getPoints(mesh);
createShape();
}
public HullCollisionShape(float[] points) {
this.points = points;
createShape();
}
@Override
public void write(JmeExporter ex) throws IOException {
super.write(ex);
OutputCapsule capsule = ex.getCapsule(this);
capsule.write(points, "points", null);
}
@Override
public void read(JmeImporter im) throws IOException {
super.read(im);
InputCapsule capsule = im.getCapsule(this);
// for backwards compatability
Mesh mesh = (Mesh) capsule.readSavable("hullMesh", null);
if (mesh != null) {
this.points = getPoints(mesh);
} else {
this.points = capsule.readFloatArray("points", null);
}
// fbuf = ByteBuffer.allocateDirect(points.length * 4).asFloatBuffer();
// fbuf.put(points);
// fbuf = FloatBuffer.wrap(points).order(ByteOrder.nativeOrder()).asFloatBuffer();
createShape();
}
protected void createShape() {
// ObjectArrayList<Vector3f> pointList = new ObjectArrayList<Vector3f>();
// for (int i = 0; i < points.length; i += 3) {
// pointList.add(new Vector3f(points[i], points[i + 1], points[i + 2]));
// }
// objectId = new ConvexHullShape(pointList);
// objectId.setLocalScaling(Converter.convert(getScale()));
// objectId.setMargin(margin);
ByteBuffer bbuf=BufferUtils.createByteBuffer(points.length * 4);
// fbuf = bbuf.asFloatBuffer();
// fbuf.rewind();
// fbuf.put(points);
for (int i = 0; i < points.length; i++) {
float f = points[i];
bbuf.putFloat(f);
}
bbuf.rewind();
objectId = createShape(bbuf);
Logger.getLogger(this.getClass().getName()).log(Level.FINE, "Created Shape {0}", Long.toHexString(objectId));
setScale(scale);
setMargin(margin);
}
private native long createShape(ByteBuffer points);
protected float[] getPoints(Mesh mesh) {
FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
vertices.rewind();
int components = mesh.getVertexCount() * 3;
float[] pointsArray = new float[components];
for (int i = 0; i < components; i += 3) {
pointsArray[i] = vertices.get();
pointsArray[i + 1] = vertices.get();
pointsArray[i + 2] = vertices.get();
}
return pointsArray;
}
}