/// Perform an integration step of duration 'timeStep'.
bool CcdPhysicsEnvironment::proceedDeltaTimeOneStep(float timeStep)
{
//printf("CcdPhysicsEnvironment::proceedDeltaTime\n");
if (SimdFuzzyZero(timeStep))
return true;
if (m_debugDrawer)
{
gDisableDeactivation = (m_debugDrawer->GetDebugMode() & IDebugDraw::DBG_NoDeactivation);
}
#ifdef USE_QUICKPROF
Profiler::beginBlock("SyncMotionStates");
#endif //USE_QUICKPROF
//this is needed because scaling is not known in advance, and scaling has to propagate to the shape
if (!m_scalingPropagated)
{
SyncMotionStates(timeStep);
m_scalingPropagated = true;
}
#ifdef USE_QUICKPROF
Profiler::endBlock("SyncMotionStates");
Profiler::beginBlock("predictIntegratedTransform");
#endif //USE_QUICKPROF
{
// std::vector<CcdPhysicsController*>::iterator i;
int k;
for (k=0;k<GetNumControllers();k++)
{
CcdPhysicsController* ctrl = m_controllers[k];
// SimdTransform predictedTrans;
RigidBody* body = ctrl->GetRigidBody();
body->m_cachedInvertedWorldTransform = body->m_worldTransform.inverse();
if (body->IsActive())
{
if (!body->IsStatic())
{
body->applyForces( timeStep);
body->integrateVelocities( timeStep);
body->predictIntegratedTransform(timeStep,body->m_interpolationWorldTransform);
}
}
}
}
#ifdef USE_QUICKPROF
Profiler::endBlock("predictIntegratedTransform");
#endif //USE_QUICKPROF
OverlappingPairCache* scene = m_collisionWorld->GetPairCache();
//
// collision detection (?)
//
#ifdef USE_QUICKPROF
Profiler::beginBlock("DispatchAllCollisionPairs");
#endif //USE_QUICKPROF
int numsubstep = m_numIterations;
DispatcherInfo dispatchInfo;
dispatchInfo.m_timeStep = timeStep;
dispatchInfo.m_stepCount = 0;
dispatchInfo.m_enableSatConvex = m_enableSatCollisionDetection;
dispatchInfo.m_debugDraw = this->m_debugDrawer;
scene->RefreshOverlappingPairs();
GetCollisionWorld()->GetDispatcher()->DispatchAllCollisionPairs(&scene->GetOverlappingPair(0),scene->GetNumOverlappingPairs(),dispatchInfo);
#ifdef USE_QUICKPROF
Profiler::endBlock("DispatchAllCollisionPairs");
#endif //USE_QUICKPROF
int numRigidBodies = m_controllers.size();
m_islandManager->UpdateActivationState(GetCollisionWorld(),GetCollisionWorld()->GetDispatcher());
{
int i;
int numConstraints = m_constraints.size();
for (i=0;i< numConstraints ; i++ )
{
TypedConstraint* constraint = m_constraints[i];
const RigidBody* colObj0 = &constraint->GetRigidBodyA();
const RigidBody* colObj1 = &constraint->GetRigidBodyB();
if (((colObj0) && ((colObj0)->mergesSimulationIslands())) &&
((colObj1) && ((colObj1)->mergesSimulationIslands())))
{
if (colObj0->IsActive() || colObj1->IsActive())
{
m_islandManager->GetUnionFind().unite((colObj0)->m_islandTag1,
(colObj1)->m_islandTag1);
}
}
}
}
m_islandManager->StoreIslandActivationState(GetCollisionWorld());
//contacts
#ifdef USE_QUICKPROF
Profiler::beginBlock("SolveConstraint");
#endif //USE_QUICKPROF
//solve the regular constraints (point 2 point, hinge, etc)
for (int g=0;g<numsubstep;g++)
{
//
// constraint solving
//
int i;
int numConstraints = m_constraints.size();
//point to point constraints
for (i=0;i< numConstraints ; i++ )
{
TypedConstraint* constraint = m_constraints[i];
constraint->BuildJacobian();
constraint->SolveConstraint( timeStep );
}
}
#ifdef USE_QUICKPROF
Profiler::endBlock("SolveConstraint");
#endif //USE_QUICKPROF
//solve the vehicles
#ifdef NEW_BULLET_VEHICLE_SUPPORT
//vehicles
int numVehicles = m_wrapperVehicles.size();
for (int i=0;i<numVehicles;i++)
{
WrapperVehicle* wrapperVehicle = m_wrapperVehicles[i];
RaycastVehicle* vehicle = wrapperVehicle->GetVehicle();
vehicle->UpdateVehicle( timeStep);
}
#endif //NEW_BULLET_VEHICLE_SUPPORT
struct InplaceSolverIslandCallback : public SimulationIslandManager::IslandCallback
{
ContactSolverInfo& m_solverInfo;
ConstraintSolver* m_solver;
IDebugDraw* m_debugDrawer;
InplaceSolverIslandCallback(
ContactSolverInfo& solverInfo,
ConstraintSolver* solver,
IDebugDraw* debugDrawer)
:m_solverInfo(solverInfo),
m_solver(solver),
m_debugDrawer(debugDrawer)
{
}
virtual void ProcessIsland(PersistentManifold** manifolds,int numManifolds)
{
m_solver->SolveGroup( manifolds, numManifolds,m_solverInfo,m_debugDrawer);
}
};
m_solverInfo.m_friction = 0.9f;
m_solverInfo.m_numIterations = m_numIterations;
m_solverInfo.m_timeStep = timeStep;
m_solverInfo.m_restitution = 0.f;//m_restitution;
InplaceSolverIslandCallback solverCallback(
m_solverInfo,
m_solver,
m_debugDrawer);
#ifdef USE_QUICKPROF
Profiler::beginBlock("BuildAndProcessIslands");
#endif //USE_QUICKPROF
/// solve all the contact points and contact friction
m_islandManager->BuildAndProcessIslands(GetCollisionWorld()->GetDispatcher(),m_collisionWorld->GetCollisionObjectArray(),&solverCallback);
#ifdef USE_QUICKPROF
Profiler::endBlock("BuildAndProcessIslands");
Profiler::beginBlock("CallbackTriggers");
#endif //USE_QUICKPROF
CallbackTriggers();
#ifdef USE_QUICKPROF
Profiler::endBlock("CallbackTriggers");
Profiler::beginBlock("proceedToTransform");
#endif //USE_QUICKPROF
{
{
UpdateAabbs(timeStep);
float toi = 1.f;
if (m_ccdMode == 3)
{
DispatcherInfo dispatchInfo;
dispatchInfo.m_timeStep = timeStep;
dispatchInfo.m_stepCount = 0;
dispatchInfo.m_dispatchFunc = DispatcherInfo::DISPATCH_CONTINUOUS;
//pairCache->RefreshOverlappingPairs();//??
GetCollisionWorld()->GetDispatcher()->DispatchAllCollisionPairs(&scene->GetOverlappingPair(0),scene->GetNumOverlappingPairs(),dispatchInfo);
toi = dispatchInfo.m_timeOfImpact;
}
//
// integrating solution
//
{
std::vector<CcdPhysicsController*>::iterator i;
for (i=m_controllers.begin();
!(i==m_controllers.end()); i++)
{
CcdPhysicsController* ctrl = *i;
SimdTransform predictedTrans;
RigidBody* body = ctrl->GetRigidBody();
if (body->IsActive())
{
if (!body->IsStatic())
{
body->predictIntegratedTransform(timeStep* toi, predictedTrans);
body->proceedToTransform( predictedTrans);
}
}
}
}
//
// disable sleeping physics objects
//
std::vector<CcdPhysicsController*> m_sleepingControllers;
std::vector<CcdPhysicsController*>::iterator i;
for (i=m_controllers.begin();
!(i==m_controllers.end()); i++)
{
CcdPhysicsController* ctrl = (*i);
RigidBody* body = ctrl->GetRigidBody();
ctrl->UpdateDeactivation(timeStep);
if (ctrl->wantsSleeping())
{
if (body->GetActivationState() == ACTIVE_TAG)
body->SetActivationState( WANTS_DEACTIVATION );
} else
{
if (body->GetActivationState() != DISABLE_DEACTIVATION)
body->SetActivationState( ACTIVE_TAG );
}
if (useIslands)
{
if (body->GetActivationState() == ISLAND_SLEEPING)
{
m_sleepingControllers.push_back(ctrl);
}
} else
{
if (ctrl->wantsSleeping())
{
m_sleepingControllers.push_back(ctrl);
}
}
}
}
#ifdef USE_QUICKPROF
Profiler::endBlock("proceedToTransform");
Profiler::beginBlock("SyncMotionStates");
#endif //USE_QUICKPROF
SyncMotionStates(timeStep);
#ifdef USE_QUICKPROF
Profiler::endBlock("SyncMotionStates");
Profiler::endProfilingCycle();
#endif //USE_QUICKPROF
#ifdef NEW_BULLET_VEHICLE_SUPPORT
//sync wheels for vehicles
int numVehicles = m_wrapperVehicles.size();
for (int i=0;i<numVehicles;i++)
{
WrapperVehicle* wrapperVehicle = m_wrapperVehicles[i];
wrapperVehicle->SyncWheels();
}
#endif //NEW_BULLET_VEHICLE_SUPPORT
}
return true;
}
bool SimulationIsland::Simulate(IDebugDraw* debugDrawer,int numSolverIterations,TypedConstraint** constraintsBaseAddress,BroadphasePair* overlappingPairBaseAddress, Dispatcher* dispatcher,BroadphaseInterface* broadphase,class ConstraintSolver* solver,float timeStep)
{
#ifdef USE_QUICKPROF
Profiler::beginBlock("predictIntegratedTransform");
#endif //USE_QUICKPROF
{
// std::vector<CcdPhysicsController*>::iterator i;
int k;
for (k=0;k<GetNumControllers();k++)
{
CcdPhysicsController* ctrl = m_controllers[k];
// SimdTransform predictedTrans;
RigidBody* body = ctrl->GetRigidBody();
//todo: only do this when necessary, it's used for contact points
body->m_cachedInvertedWorldTransform = body->m_worldTransform.inverse();
if (body->IsActive())
{
if (!body->IsStatic())
{
body->applyForces( timeStep);
body->integrateVelocities( timeStep);
body->predictIntegratedTransform(timeStep,body->m_interpolationWorldTransform);
}
}
}
}
#ifdef USE_QUICKPROF
Profiler::endBlock("predictIntegratedTransform");
#endif //USE_QUICKPROF
//BroadphaseInterface* scene = GetBroadphase();
//
// collision detection (?)
//
#ifdef USE_QUICKPROF
Profiler::beginBlock("DispatchAllCollisionPairs");
#endif //USE_QUICKPROF
// int numsubstep = m_numIterations;
DispatcherInfo dispatchInfo;
dispatchInfo.m_timeStep = timeStep;
dispatchInfo.m_stepCount = 0;
dispatchInfo.m_enableSatConvex = false;//m_enableSatCollisionDetection;
dispatchInfo.m_debugDraw = debugDrawer;
std::vector<BroadphasePair> overlappingPairs;
overlappingPairs.resize(this->m_overlappingPairIndices.size());
//gather overlapping pair info
int i;
for (i=0;i<m_overlappingPairIndices.size();i++)
{
overlappingPairs[i] = overlappingPairBaseAddress[m_overlappingPairIndices[i]];
}
//pairCache->RefreshOverlappingPairs();
if (overlappingPairs.size())
{
dispatcher->DispatchAllCollisionPairs(&overlappingPairs[0],overlappingPairs.size(),dispatchInfo);///numsubstep,g);
}
//scatter overlapping pair info, mainly the created algorithms/contact caches
for (i=0;i<m_overlappingPairIndices.size();i++)
{
overlappingPairBaseAddress[m_overlappingPairIndices[i]] = overlappingPairs[i];
}
#ifdef USE_QUICKPROF
Profiler::endBlock("DispatchAllCollisionPairs");
#endif //USE_QUICKPROF
int numRigidBodies = m_controllers.size();
//contacts
#ifdef USE_QUICKPROF
Profiler::beginBlock("SolveConstraint");
#endif //USE_QUICKPROF
//solve the regular constraints (point 2 point, hinge, etc)
for (int g=0;g<numSolverIterations;g++)
{
//
// constraint solving
//
int i;
int numConstraints = m_constraintIndices.size();
//point to point constraints
for (i=0;i< numConstraints ; i++ )
{
TypedConstraint* constraint = constraintsBaseAddress[m_constraintIndices[i]];
constraint->BuildJacobian();
constraint->SolveConstraint( timeStep );
}
}
#ifdef USE_QUICKPROF
Profiler::endBlock("SolveConstraint");
#endif //USE_QUICKPROF
/*
//solve the vehicles
#ifdef NEW_BULLET_VEHICLE_SUPPORT
//vehicles
int numVehicles = m_wrapperVehicles.size();
for (int i=0;i<numVehicles;i++)
{
WrapperVehicle* wrapperVehicle = m_wrapperVehicles[i];
RaycastVehicle* vehicle = wrapperVehicle->GetVehicle();
vehicle->UpdateVehicle( timeStep);
}
#endif //NEW_BULLET_VEHICLE_SUPPORT
*/
/*
Profiler::beginBlock("CallbackTriggers");
#endif //USE_QUICKPROF
CallbackTriggers();
#ifdef USE_QUICKPROF
Profiler::endBlock("CallbackTriggers");
}
*/
//OverlappingPairCache* scene = GetCollisionWorld()->GetPairCache();
ContactSolverInfo solverInfo;
solverInfo.m_friction = 0.9f;
solverInfo.m_numIterations = numSolverIterations;
solverInfo.m_timeStep = timeStep;
solverInfo.m_restitution = 0.f;//m_restitution;
if (m_manifolds.size())
{
solver->SolveGroup( &m_manifolds[0],m_manifolds.size(),solverInfo,0);
}
#ifdef USE_QUICKPROF
Profiler::beginBlock("proceedToTransform");
#endif //USE_QUICKPROF
{
{
UpdateAabbs(debugDrawer,broadphase,timeStep);
float toi = 1.f;
//experimental continuous collision detection
/* if (m_ccdMode == 3)
{
DispatcherInfo dispatchInfo;
dispatchInfo.m_timeStep = timeStep;
dispatchInfo.m_stepCount = 0;
dispatchInfo.m_dispatchFunc = DispatcherInfo::DISPATCH_CONTINUOUS;
// GetCollisionWorld()->GetDispatcher()->DispatchAllCollisionPairs(scene,dispatchInfo);
toi = dispatchInfo.m_timeOfImpact;
}
*/
//
// integrating solution
//
{
std::vector<CcdPhysicsController*>::iterator i;
for (i=m_controllers.begin();
!(i==m_controllers.end()); i++)
{
CcdPhysicsController* ctrl = *i;
SimdTransform predictedTrans;
RigidBody* body = ctrl->GetRigidBody();
if (body->IsActive())
{
if (!body->IsStatic())
{
body->predictIntegratedTransform(timeStep* toi, predictedTrans);
body->proceedToTransform( predictedTrans);
}
}
}
}
//
// disable sleeping physics objects
//
std::vector<CcdPhysicsController*> m_sleepingControllers;
std::vector<CcdPhysicsController*>::iterator i;
for (i=m_controllers.begin();
!(i==m_controllers.end()); i++)
{
CcdPhysicsController* ctrl = (*i);
RigidBody* body = ctrl->GetRigidBody();
ctrl->UpdateDeactivation(timeStep);
if (ctrl->wantsSleeping())
{
if (body->GetActivationState() == ACTIVE_TAG)
body->SetActivationState( WANTS_DEACTIVATION );
} else
{
if (body->GetActivationState() != DISABLE_DEACTIVATION)
body->SetActivationState( ACTIVE_TAG );
}
if (true)
{
if (body->GetActivationState() == ISLAND_SLEEPING)
{
m_sleepingControllers.push_back(ctrl);
}
} else
{
if (ctrl->wantsSleeping())
{
m_sleepingControllers.push_back(ctrl);
}
}
}
}
#ifdef USE_QUICKPROF
Profiler::endBlock("proceedToTransform");
Profiler::beginBlock("SyncMotionStates");
#endif //USE_QUICKPROF
SyncMotionStates(timeStep);
#ifdef USE_QUICKPROF
Profiler::endBlock("SyncMotionStates");
#endif //USE_QUICKPROF
#ifdef NEW_BULLET_VEHICLE_SUPPORT
//sync wheels for vehicles
int numVehicles = m_wrapperVehicles.size();
for (int i=0;i<numVehicles;i++)
{
WrapperVehicle* wrapperVehicle = m_wrapperVehicles[i];
wrapperVehicle->SyncWheels();
}
#endif //NEW_BULLET_VEHICLE_SUPPORT
return true;
}
}
bool CcdPhysicsEnvironment::proceedDeltaTime(double curTime,float timeStep)
{
//don't simulate without timesubsteps
if (m_numTimeSubSteps<1)
return true;
//printf("proceedDeltaTime\n");
#ifdef USE_QUICKPROF
//toggle Profiler
if ( m_debugDrawer->GetDebugMode() & IDebugDraw::DBG_ProfileTimings)
{
if (!m_profileTimings)
{
m_profileTimings = 1;
// To disable profiling, simply comment out the following line.
static int counter = 0;
char filename[128];
sprintf(filename,"quickprof_bullet_timings%i.csv",counter++);
Profiler::init(filename, Profiler::BLOCK_CYCLE_SECONDS);//BLOCK_TOTAL_MICROSECONDS
}
} else
{
if (m_profileTimings)
{
m_profileTimings = 0;
Profiler::destroy();
}
}
#endif //USE_QUICKPROF
if (!SimdFuzzyZero(timeStep))
{
{
//do the kinematic calculation here, over the full timestep
std::vector<CcdPhysicsController*>::iterator i;
for (i=m_controllers.begin();
!(i==m_controllers.end()); i++)
{
CcdPhysicsController* ctrl = *i;
SimdTransform predictedTrans;
RigidBody* body = ctrl->GetRigidBody();
if (body->GetActivationState() != ISLAND_SLEEPING)
{
if (body->IsStatic())
{
//to calculate velocities next frame
body->saveKinematicState(timeStep);
}
}
}
}
int i;
float subTimeStep = timeStep / float(m_numTimeSubSteps);
for (i=0;i<this->m_numTimeSubSteps;i++)
{
proceedDeltaTimeOneStep(subTimeStep);
}
} else
{
//todo: interpolate
}
return true;
}