git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@8852 75d07b2b-3a1a-0410-a2c5-0572b91ccdca3.0
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/*
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* Copyright (c) 2009-2010 jMonkeyEngine |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* * Neither the name of 'jMonkeyEngine' nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "jmePhysicsSpace.h" |
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#include "jmeBulletUtil.h" |
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#include <stdio.h> |
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/**
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* Author: Normen Hansen |
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*/ |
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jmePhysicsSpace::jmePhysicsSpace(JNIEnv* env, jobject javaSpace) { |
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//TODO: global ref? maybe not -> cleaning, rather callback class?
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this->javaPhysicsSpace = env->NewWeakGlobalRef(javaSpace); |
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this->env = env; |
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env->GetJavaVM(&vm); |
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if (env->ExceptionCheck()) { |
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env->Throw(env->ExceptionOccurred()); |
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return; |
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} |
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} |
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void jmePhysicsSpace::attachThread() { |
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#ifdef JNI_VERSION_1_2 |
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vm->AttachCurrentThread((JNIEnv**) &env, NULL); |
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#else |
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vm->AttachCurrentThread(&env, NULL); |
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#endif |
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} |
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JNIEnv* jmePhysicsSpace::getEnv() { |
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attachThread(); |
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return this->env; |
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} |
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void jmePhysicsSpace::stepSimulation(jfloat tpf, jint maxSteps, jfloat accuracy) { |
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dynamicsWorld->stepSimulation(tpf, maxSteps, accuracy); |
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} |
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btThreadSupportInterface* jmePhysicsSpace::createSolverThreadSupport(int maxNumThreads) { |
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#ifdef _WIN32 |
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Win32ThreadSupport::Win32ThreadConstructionInfo threadConstructionInfo("solverThreads", SolverThreadFunc, SolverlsMemoryFunc, maxNumThreads); |
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Win32ThreadSupport* threadSupport = new Win32ThreadSupport(threadConstructionInfo); |
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threadSupport->startSPU(); |
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#elif defined (USE_PTHREADS) |
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PosixThreadSupport::ThreadConstructionInfo constructionInfo("collision", SolverThreadFunc, |
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SolverlsMemoryFunc, maxNumThreads); |
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PosixThreadSupport* threadSupport = new PosixThreadSupport(constructionInfo); |
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threadSupport->startSPU(); |
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#else |
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SequentialThreadSupport::SequentialThreadConstructionInfo tci("solverThreads", SolverThreadFunc, SolverlsMemoryFunc); |
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SequentialThreadSupport* threadSupport = new SequentialThreadSupport(tci); |
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threadSupport->startSPU(); |
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#endif |
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return threadSupport; |
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} |
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btThreadSupportInterface* jmePhysicsSpace::createDispatchThreadSupport(int maxNumThreads) { |
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#ifdef _WIN32 |
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Win32ThreadSupport::Win32ThreadConstructionInfo threadConstructionInfo("solverThreads", processCollisionTask, createCollisionLocalStoreMemory, maxNumThreads); |
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Win32ThreadSupport* threadSupport = new Win32ThreadSupport(threadConstructionInfo); |
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threadSupport->startSPU(); |
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#elif defined (USE_PTHREADS) |
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PosixThreadSupport::ThreadConstructionInfo solverConstructionInfo("solver", processCollisionTask, |
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createCollisionLocalStoreMemory, maxNumThreads); |
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PosixThreadSupport* threadSupport = new PosixThreadSupport(solverConstructionInfo); |
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threadSupport->startSPU(); |
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#else |
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SequentialThreadSupport::SequentialThreadConstructionInfo tci("solverThreads", processCollisionTask, createCollisionLocalStoreMemory); |
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SequentialThreadSupport* threadSupport = new SequentialThreadSupport(tci); |
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threadSupport->startSPU(); |
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#endif |
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return threadSupport; |
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} |
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void jmePhysicsSpace::createPhysicsSpace(jfloat minX, jfloat minY, jfloat minZ, jfloat maxX, jfloat maxY, jfloat maxZ, jint broadphaseId, jboolean threading) { |
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// collision configuration contains default setup for memory, collision setup
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btDefaultCollisionConstructionInfo cci; |
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// if(threading){
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// cci.m_defaultMaxPersistentManifoldPoolSize = 32768;
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// }
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btCollisionConfiguration* collisionConfiguration = new btDefaultCollisionConfiguration(cci); |
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btVector3 min = btVector3(minX, minY, minZ); |
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btVector3 max = btVector3(maxX, maxY, maxZ); |
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btBroadphaseInterface* broadphase; |
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switch (broadphaseId) { |
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case 0: |
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broadphase = new btSimpleBroadphase(); |
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break; |
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case 1: |
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broadphase = new btAxisSweep3(min, max); |
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break; |
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case 2: |
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//TODO: 32bit!
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broadphase = new btAxisSweep3(min, max); |
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break; |
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case 3: |
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broadphase = new btDbvtBroadphase(); |
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break; |
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case 4: |
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// broadphase = new btGpu3DGridBroadphase(
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// min, max,
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// 20, 20, 20,
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// 10000, 1000, 25);
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break; |
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} |
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btCollisionDispatcher* dispatcher; |
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btConstraintSolver* solver; |
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// use the default collision dispatcher. For parallel processing you can use a diffent dispatcher (see Extras/BulletMultiThreaded)
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if (threading) { |
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btThreadSupportInterface* dispatchThreads = createDispatchThreadSupport(4); |
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dispatcher = new SpuGatheringCollisionDispatcher(dispatchThreads, 4, collisionConfiguration); |
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dispatcher->setDispatcherFlags(btCollisionDispatcher::CD_DISABLE_CONTACTPOOL_DYNAMIC_ALLOCATION); |
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} else { |
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dispatcher = new btCollisionDispatcher(collisionConfiguration); |
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} |
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// the default constraint solver. For parallel processing you can use a different solver (see Extras/BulletMultiThreaded)
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if (threading) { |
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btThreadSupportInterface* solverThreads = createSolverThreadSupport(4); |
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solver = new btParallelConstraintSolver(solverThreads); |
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} else { |
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solver = new btSequentialImpulseConstraintSolver; |
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} |
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//create dynamics world
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btDiscreteDynamicsWorld* world = new btDiscreteDynamicsWorld(dispatcher, broadphase, solver, collisionConfiguration); |
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dynamicsWorld = world; |
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dynamicsWorld->setWorldUserInfo(this); |
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//parallel solver requires the contacts to be in a contiguous pool, so avoid dynamic allocation
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if (threading) { |
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world->getSimulationIslandManager()->setSplitIslands(false); |
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world->getSolverInfo().m_numIterations = 4; |
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world->getSolverInfo().m_solverMode = SOLVER_SIMD + SOLVER_USE_WARMSTARTING; //+SOLVER_RANDMIZE_ORDER;
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world->getDispatchInfo().m_enableSPU = true; |
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} |
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broadphase->getOverlappingPairCache()->setInternalGhostPairCallback(new btGhostPairCallback()); |
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dynamicsWorld->setGravity(btVector3(0, -9.81f, 0)); |
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struct jmeFilterCallback : public btOverlapFilterCallback { |
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// return true when pairs need collision
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virtual bool needBroadphaseCollision(btBroadphaseProxy* proxy0, btBroadphaseProxy * proxy1) const { |
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// bool collides = (proxy0->m_collisionFilterGroup & proxy1->m_collisionFilterMask) != 0;
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// collides = collides && (proxy1->m_collisionFilterGroup & proxy0->m_collisionFilterMask);
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bool collides = (proxy0->m_collisionFilterGroup & proxy1->m_collisionFilterMask) != 0; |
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collides = collides && (proxy1->m_collisionFilterGroup & proxy0->m_collisionFilterMask); |
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if (collides) { |
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btCollisionObject* co0 = (btCollisionObject*) proxy0->m_clientObject; |
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btCollisionObject* co1 = (btCollisionObject*) proxy1->m_clientObject; |
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jmeUserPointer *up0 = (jmeUserPointer*) co0 -> getUserPointer(); |
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jmeUserPointer *up1 = (jmeUserPointer*) co1 -> getUserPointer(); |
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if (up0 != NULL && up1 != NULL) { |
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collides = (up0->group & up1->groups) != 0; |
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collides = collides && (up1->group & up0->groups); |
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//add some additional logic here that modified 'collides'
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return collides; |
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} |
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return false; |
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} |
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return collides; |
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} |
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}; |
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dynamicsWorld->getPairCache()->setOverlapFilterCallback(new jmeFilterCallback()); |
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dynamicsWorld->setInternalTickCallback(&jmePhysicsSpace::preTickCallback, static_cast<void *> (this), true); |
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dynamicsWorld->setInternalTickCallback(&jmePhysicsSpace::postTickCallback, static_cast<void *> (this)); |
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if (gContactProcessedCallback == NULL) { |
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gContactProcessedCallback = &jmePhysicsSpace::contactProcessedCallback; |
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} |
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} |
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void jmePhysicsSpace::preTickCallback(btDynamicsWorld *world, btScalar timeStep) { |
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jmePhysicsSpace* dynamicsWorld = (jmePhysicsSpace*) world->getWorldUserInfo(); |
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JNIEnv* env = dynamicsWorld->getEnv(); |
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jobject javaPhysicsSpace = env->NewLocalRef(dynamicsWorld->getJavaPhysicsSpace()); |
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if (javaPhysicsSpace != NULL) { |
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env->CallVoidMethod(javaPhysicsSpace, jmeClasses::PhysicsSpace_preTick, timeStep); |
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env->DeleteLocalRef(javaPhysicsSpace); |
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if (env->ExceptionCheck()) { |
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env->Throw(env->ExceptionOccurred()); |
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return; |
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} |
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} |
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} |
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void jmePhysicsSpace::postTickCallback(btDynamicsWorld *world, btScalar timeStep) { |
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jmePhysicsSpace* dynamicsWorld = (jmePhysicsSpace*) world->getWorldUserInfo(); |
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JNIEnv* env = dynamicsWorld->getEnv(); |
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jobject javaPhysicsSpace = env->NewLocalRef(dynamicsWorld->getJavaPhysicsSpace()); |
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if (javaPhysicsSpace != NULL) { |
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env->CallVoidMethod(javaPhysicsSpace, jmeClasses::PhysicsSpace_postTick, timeStep); |
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env->DeleteLocalRef(javaPhysicsSpace); |
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if (env->ExceptionCheck()) { |
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env->Throw(env->ExceptionOccurred()); |
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return; |
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} |
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} |
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} |
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bool jmePhysicsSpace::contactProcessedCallback(btManifoldPoint &cp, void *body0, void *body1) { |
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// printf("contactProcessedCallback %d %dn", body0, body1);
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btCollisionObject* co0 = (btCollisionObject*) body0; |
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jmeUserPointer *up0 = (jmeUserPointer*) co0 -> getUserPointer(); |
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btCollisionObject* co1 = (btCollisionObject*) body1; |
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jmeUserPointer *up1 = (jmeUserPointer*) co1 -> getUserPointer(); |
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if (up0 != NULL) { |
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jmePhysicsSpace *dynamicsWorld = (jmePhysicsSpace *)up0->space; |
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if (dynamicsWorld != NULL) { |
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JNIEnv* env = dynamicsWorld->getEnv(); |
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jobject javaPhysicsSpace = env->NewLocalRef(dynamicsWorld->getJavaPhysicsSpace()); |
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if (javaPhysicsSpace != NULL) { |
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jobject javaCollisionObject0 = env->NewLocalRef(up0->javaCollisionObject); |
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jobject javaCollisionObject1 = env->NewLocalRef(up1->javaCollisionObject); |
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env->CallVoidMethod(javaPhysicsSpace, jmeClasses::PhysicsSpace_addCollisionEvent, javaCollisionObject0, javaCollisionObject1, (jlong) & cp); |
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env->DeleteLocalRef(javaPhysicsSpace); |
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env->DeleteLocalRef(javaCollisionObject0); |
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env->DeleteLocalRef(javaCollisionObject1); |
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if (env->ExceptionCheck()) { |
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env->Throw(env->ExceptionOccurred()); |
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return true; |
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} |
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} |
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} |
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} |
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return true; |
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} |
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btDynamicsWorld* jmePhysicsSpace::getDynamicsWorld() { |
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return dynamicsWorld; |
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} |
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jobject jmePhysicsSpace::getJavaPhysicsSpace() { |
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return javaPhysicsSpace; |
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} |
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jmePhysicsSpace::~jmePhysicsSpace() { |
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delete(dynamicsWorld); |
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} |
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