/*
* 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.bullet.util.NativeMeshUtil;
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.scene.mesh.IndexBuffer;
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;
/**
* Basic mesh collision shape
* @author normenhansen
*/
public class GImpactCollisionShape extends CollisionShape {
// protected Vector3f worldScale;
protected int numVertices, numTriangles, vertexStride, triangleIndexStride;
protected ByteBuffer triangleIndexBase, vertexBase;
protected long meshId = 0;
// protected IndexedMesh bulletMesh;
public GImpactCollisionShape() {
}
/**
* creates a collision shape from the given Mesh
* @param mesh the Mesh to use
*/
public GImpactCollisionShape(Mesh mesh) {
createCollisionMesh(mesh);
}
private void createCollisionMesh(Mesh mesh) {
triangleIndexBase = BufferUtils.createByteBuffer(mesh.getTriangleCount() * 3 * 4);
vertexBase = BufferUtils.createByteBuffer(mesh.getVertexCount() * 3 * 4);
// triangleIndexBase = ByteBuffer.allocate(mesh.getTriangleCount() * 3 * 4);
// vertexBase = ByteBuffer.allocate(mesh.getVertexCount() * 3 * 4);
numVertices = mesh.getVertexCount();
vertexStride = 12; //3 verts * 4 bytes per.
numTriangles = mesh.getTriangleCount();
triangleIndexStride = 12; //3 index entries * 4 bytes each.
IndexBuffer indices = mesh.getIndicesAsList();
FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
vertices.rewind();
int verticesLength = mesh.getVertexCount() * 3;
for (int i = 0; i < verticesLength; i++) {
float tempFloat = vertices.get();
vertexBase.putFloat(tempFloat);
}
int indicesLength = mesh.getTriangleCount() * 3;
for (int i = 0; i < indicesLength; i++) {
triangleIndexBase.putInt(indices.get(i));
}
vertices.rewind();
vertices.clear();
createShape();
}
// /**
// * creates a jme mesh from the collision shape, only needed for debugging
// */
// public Mesh createJmeMesh() {
// return Converter.convert(bulletMesh);
// }
public void write(JmeExporter ex) throws IOException {
super.write(ex);
OutputCapsule capsule = ex.getCapsule(this);
// capsule.write(worldScale, "worldScale", new Vector3f(1, 1, 1));
capsule.write(numVertices, "numVertices", 0);
capsule.write(numTriangles, "numTriangles", 0);
capsule.write(vertexStride, "vertexStride", 0);
capsule.write(triangleIndexStride, "triangleIndexStride", 0);
capsule.write(triangleIndexBase.array(), "triangleIndexBase", new byte[0]);
capsule.write(vertexBase.array(), "vertexBase", new byte[0]);
}
public void read(JmeImporter im) throws IOException {
super.read(im);
InputCapsule capsule = im.getCapsule(this);
// worldScale = (Vector3f) capsule.readSavable("worldScale", new Vector3f(1, 1, 1));
numVertices = capsule.readInt("numVertices", 0);
numTriangles = capsule.readInt("numTriangles", 0);
vertexStride = capsule.readInt("vertexStride", 0);
triangleIndexStride = capsule.readInt("triangleIndexStride", 0);
triangleIndexBase = ByteBuffer.wrap(capsule.readByteArray("triangleIndexBase", new byte[0]));
vertexBase = ByteBuffer.wrap(capsule.readByteArray("vertexBase", new byte[0]));
createShape();
}
protected void createShape() {
// bulletMesh = new IndexedMesh();
// bulletMesh.numVertices = numVertices;
// bulletMesh.numTriangles = numTriangles;
// bulletMesh.vertexStride = vertexStride;
// bulletMesh.triangleIndexStride = triangleIndexStride;
// bulletMesh.triangleIndexBase = triangleIndexBase;
// bulletMesh.vertexBase = vertexBase;
// bulletMesh.triangleIndexBase = triangleIndexBase;
// TriangleIndexVertexArray tiv = new TriangleIndexVertexArray(numTriangles, triangleIndexBase, triangleIndexStride, numVertices, vertexBase, vertexStride);
// objectId = new GImpactMeshShape(tiv);
// objectId.setLocalScaling(Converter.convert(worldScale));
// ((GImpactMeshShape)objectId).updateBound();
// objectId.setLocalScaling(Converter.convert(getScale()));
// objectId.setMargin(margin);
meshId = NativeMeshUtil.createTriangleIndexVertexArray(triangleIndexBase, vertexBase, numTriangles, numVertices, vertexStride, triangleIndexStride);
Logger.getLogger(this.getClass().getName()).log(Level.FINE, "Created Mesh {0}", Long.toHexString(meshId));
objectId = createShape(meshId);
Logger.getLogger(this.getClass().getName()).log(Level.FINE, "Created Shape {0}", Long.toHexString(objectId));
setScale(scale);
setMargin(margin);
}
private native long createShape(long meshId);
@Override
protected void finalize() throws Throwable {
super.finalize();
Logger.getLogger(this.getClass().getName()).log(Level.FINE, "Finalizing Mesh {0}", Long.toHexString(meshId));
finalizeNative(meshId);
}
private native void finalizeNative(long objectId);
}