void PhysicsHandler::handleUpdate(EventDetails* const details)
{
commitChanges();
//Start the physics timing statistic
StatTimeElem *PhysicsTimeStatElem = StatCollector::getGlobalElem(statPhysicsTime);
if(PhysicsTimeStatElem) { PhysicsTimeStatElem->start(); }
_TimeSinceLast += dynamic_cast<UpdateEventDetails* const>(details)->getElapsedTime();
if(osgFloor(_TimeSinceLast/getStepSize()) > getMaxStepsPerUpdate())
{
SWARNING << "Physics Simulation slowing: dropping " << osgFloor(_TimeSinceLast/getStepSize())-getMaxStepsPerUpdate() << " steps" << std::endl;
_TimeSinceLast = getMaxStepsPerUpdate()*getStepSize();
}
StatIntElem *NPhysicsStepsStatElem = StatCollector::getGlobalElem(statNPhysicsSteps);
StatTimeElem *CollisionTimeStatElem = StatCollector::getGlobalElem(statCollisionTime);
StatTimeElem *DynamicsTimeStatElem = StatCollector::getGlobalElem(statSimulationTime);
while(_TimeSinceLast > getStepSize())
{
//Increment the steps statistic
if(NPhysicsStepsStatElem) { NPhysicsStepsStatElem->inc(); }
//*********** Collision Checks *************
//Start the collision timing statistic
if(CollisionTimeStatElem) { CollisionTimeStatElem->start(); }
//Do collision checks
for(UInt32 i(0) ; i<getMFSpaces()->size() ; ++i)
{
getSpaces(i)->Collide(getWorld());
}
//Stop the collision timing statistic
if(CollisionTimeStatElem) { CollisionTimeStatElem->stop(); }
//*********** Simulation step *************
//Start the simulation timing statistic
if(DynamicsTimeStatElem) { DynamicsTimeStatElem->start(); }
//Step the dynamics simulation
getWorld()->worldQuickStep(getStepSize());
//Stop the simulation timing statistic
if(DynamicsTimeStatElem) { DynamicsTimeStatElem->stop(); }
//Decrease the time since last simulation step
_TimeSinceLast -= getStepSize();
}
StatRealElem *NCollisionTestsStatElem = StatCollector::getGlobalElem(statNCollisionTests);
if(NCollisionTestsStatElem) { NCollisionTestsStatElem->set(NCollisionTestsStatElem->get()/static_cast<Real32>(NPhysicsStepsStatElem->get())); }
StatRealElem *NCollisionsStatElem = StatCollector::getGlobalElem(statNCollisions);
if(NCollisionsStatElem) { NCollisionsStatElem->set(NCollisionsStatElem->get()/static_cast<Real32>(NPhysicsStepsStatElem->get())); }
StatTimeElem *TransformUpdateTimeStatElem = StatCollector::getGlobalElem(statTransformUpdateTime);
//Start the transform update timing statistic
if(TransformUpdateTimeStatElem) { TransformUpdateTimeStatElem->start(); }
//update matrices
updateWorld(getUpdateNode());
//Start the transform update timing statistic
if(TransformUpdateTimeStatElem) { TransformUpdateTimeStatElem->stop(); }
//Stop the physics timing statistic
if(PhysicsTimeStatElem) { PhysicsTimeStatElem->stop(); }
}
/*!
* \fn bool OSG::Animation::update(const Time& ElapsedTime)
*
* \brief Update the animation with the time since the last update
*
* The result of the animation will also be applied to the
* object it is connected to.
*
* \param[in] ElapsedTime The time, in seconds, since the previous call to
* update.
*/
bool Animation::update(const Time& ElapsedTime)
{
if(!_IsPlaying || _IsPaused)
{
return false;
}
//Increment the updated animations statistic
StatIntElem *NAnimationsStatElem = StatCollector::getGlobalElem(statNAnimations);
if(NAnimationsStatElem) { NAnimationsStatElem->inc(); }
//Start the animation update time statistic
StatTimeElem *AnimUpdateTimeStatElem = StatCollector::getGlobalElem(statAnimUpdateTime);
if(AnimUpdateTimeStatElem) { AnimUpdateTimeStatElem->start(); }
_CurrentTime += getScale()*ElapsedTime;
UInt32 PreUpdateCycleCount(getCycles());
if(getCycling() < 0 || PreUpdateCycleCount < getCycling())
{
Real32 CycleLength(getCycleLength() * getScale());
//Check if the Animation Time is past the end
if(_CurrentTime >= CycleLength)
{
//Update the number of cycles completed
setCycles( (CycleLength <= 0.0f) ? (0): (static_cast<UInt32>( osgFloor( _CurrentTime / CycleLength ) )) );
//commitChanges();
}
Real32 t(_CurrentTime);
if(getCycling() > 0 && getCycles() >= getCycling())
{
if(getSpan() > 0.0f)
{
t = getSpan();
}
t -= 0.0001f;
}
else
{
if(getSpan() > 0.0f)
{
t -= osgFloor(_CurrentTime/getSpan())*getSpan();
}
}
t += getOffset();
//Internal Update
internalUpdate(t, _PrevTime);
//If the number of cycles has changed
if(getCycles() != PreUpdateCycleCount)
{
if(getCycling() > 0 && getCycles() >= getCycling())
{
//Animation has reached the end
//Remove the Animation from it's update producer
_UpdateEventConnection.disconnect();
_IsPlaying = false;
//Produce the Ended event
produceAnimationEnded();
}
else
{
//Animation hasn't finished yet
//Produce the Cycled event
produceAnimationCycled();
}
}
}
_PrevTime = _CurrentTime;
//Stp[ the animation update time statistic
if(AnimUpdateTimeStatElem) { AnimUpdateTimeStatElem->stop(); }
//Return true if the animation has completed its number of cycles, false otherwise
return (getCycling() > 0 && getCycles() >= getCycling());
}
