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/*
* Copyright (c) 2009-2010 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
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Author: Normen Hansen, CJ Hare
*/
#include "com_jme3_bullet_util_DebugShapeFactory.h"
#include "jmeBulletUtil.h"
#include "BulletCollision/CollisionShapes/btShapeHull.h"
class DebugCallback : public btTriangleCallback, public btInternalTriangleIndexCallback {
public:
JNIEnv* env;
jobject callback;
DebugCallback(JNIEnv* env, jobject object) {
this->env = env;
this->callback = object;
}
virtual void internalProcessTriangleIndex(btVector3* triangle, int partId, int triangleIndex) {
processTriangle(triangle, partId, triangleIndex);
}
virtual void processTriangle(btVector3* triangle, int partId, int triangleIndex) {
btVector3 vertexA, vertexB, vertexC;
vertexA = triangle[0];
vertexB = triangle[1];
vertexC = triangle[2];
env->CallVoidMethod(callback, jmeClasses::DebugMeshCallback_addVector, vertexA.getX(), vertexA.getY(), vertexA.getZ(), partId, triangleIndex);
if (env->ExceptionCheck()) {
env->Throw(env->ExceptionOccurred());
return;
}
// triangle =
env->CallVoidMethod(callback, jmeClasses::DebugMeshCallback_addVector, vertexB.getX(), vertexB.getY(), vertexB.getZ(), partId, triangleIndex);
if (env->ExceptionCheck()) {
env->Throw(env->ExceptionOccurred());
return;
}
env->CallVoidMethod(callback, jmeClasses::DebugMeshCallback_addVector, vertexC.getX(), vertexC.getY(), vertexC.getZ(), partId, triangleIndex);
if (env->ExceptionCheck()) {
env->Throw(env->ExceptionOccurred());
return;
}
}
};
#ifdef __cplusplus
extern "C" {
#endif
/* Inaccessible static: _00024assertionsDisabled */
/*
* Class: com_jme3_bullet_util_DebugShapeFactory
* Method: getVertices
* Signature: (JLcom/jme3/bullet/util/DebugMeshCallback;)V
*/
JNIEXPORT void JNICALL Java_com_jme3_bullet_util_DebugShapeFactory_getVertices
(JNIEnv *env, jclass clazz, jlong shapeId, jobject callback) {
btCollisionShape* shape = reinterpret_cast<btCollisionShape*>(shapeId);
if (shape->isConcave()) {
btConcaveShape* concave = reinterpret_cast<btConcaveShape*>(shape);
DebugCallback* clb = new DebugCallback(env, callback);
btVector3 min = btVector3(-1e30, -1e30, -1e30);
btVector3 max = btVector3(1e30, 1e30, 1e30);
concave->processAllTriangles(clb, min, max);
delete(clb);
} else if (shape->isConvex()) {
btConvexShape* convexShape = reinterpret_cast<btConvexShape*>(shape);
// Check there is a hull shape to render
if (convexShape->getUserPointer() == NULL) {
// create a hull approximation
btShapeHull* hull = new btShapeHull(convexShape);
float margin = convexShape->getMargin();
hull->buildHull(margin);
convexShape->setUserPointer(hull);
}
btShapeHull* hull = (btShapeHull*) convexShape->getUserPointer();
int numberOfTriangles = hull->numTriangles();
int numberOfFloats = 3 * 3 * numberOfTriangles;
int byteBufferSize = numberOfFloats * 4;
// Loop variables
const unsigned int* hullIndices = hull->getIndexPointer();
const btVector3* hullVertices = hull->getVertexPointer();
btVector3 vertexA, vertexB, vertexC;
int index = 0;
for (int i = 0; i < numberOfTriangles; i++) {
// Grab the data for this triangle from the hull
vertexA = hullVertices[hullIndices[index++]];
vertexB = hullVertices[hullIndices[index++]];
vertexC = hullVertices[hullIndices[index++]];
// Put the verticies into the vertex buffer
env->CallVoidMethod(callback, jmeClasses::DebugMeshCallback_addVector, vertexA.getX(), vertexA.getY(), vertexA.getZ());
if (env->ExceptionCheck()) {
env->Throw(env->ExceptionOccurred());
return;
}
env->CallVoidMethod(callback, jmeClasses::DebugMeshCallback_addVector, vertexB.getX(), vertexB.getY(), vertexB.getZ());
if (env->ExceptionCheck()) {
env->Throw(env->ExceptionOccurred());
return;
}
env->CallVoidMethod(callback, jmeClasses::DebugMeshCallback_addVector, vertexC.getX(), vertexC.getY(), vertexC.getZ());
if (env->ExceptionCheck()) {
env->Throw(env->ExceptionOccurred());
return;
}
}
delete hull;
convexShape->setUserPointer(NULL);
}
}
#ifdef __cplusplus
}
#endif
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