void Group::pushParticle(std::vector<EmitterData>::iterator& emitterIt,unsigned int& nbManualBorn)
{
Particle* ptr = pool.makeActive();
if (ptr == NULL)
{
if (pool.getNbEmpty() > 0)
{
Particle p(this,pool.getNbActive());
launchParticle(p,emitterIt,nbManualBorn);
pool.pushActive(p);
}
else if (nbManualBorn > 0)
popNextManualAdding(nbManualBorn);
}
else
{
ptr->init();
launchParticle(*ptr,emitterIt,nbManualBorn);
}
}
void Group::pushParticle(EmitterData* &emitterIt, uint32& nbManualBorn)
{
Particle* ptr = pool.makeActive();
if( ptr == NULL )
{
if(pool.getSizeOfEmpty() > 0)
{
Particle p(this, pool.getSizeOfActive());
launchParticle(p, emitterIt, nbManualBorn);
pool.pushActive(p);
}
else if(nbManualBorn > 0)
popNextManualAdding(nbManualBorn);
}
else
{
ptr->init();
launchParticle(*ptr, emitterIt, nbManualBorn);
}
}
bool Group::update(float deltaTime)
{
unsigned int nbManualBorn = nbBufferedParticles;
unsigned int nbAutoBorn = 0;
bool hasActiveEmitters = false;
// Updates emitters
activeEmitters.clear();
std::vector<Emitter*>::const_iterator endIt = emitters.end();
for (std::vector<Emitter*>::const_iterator it = emitters.begin(); it != endIt; ++it)
{
if ((*it)->isActive())
{
int nb = (*it)->updateNumber(deltaTime);
if (nb > 0)
{
EmitterData data = {*it,nb};
activeEmitters.push_back(data);
nbAutoBorn += nb;
}
}
hasActiveEmitters |= !((*it)->isSleeping());
}
std::vector<EmitterData>::iterator emitterIt = activeEmitters.begin();
unsigned int nbBorn = nbAutoBorn + nbManualBorn;
// Inits bounding box
if (boundingBoxEnabled)
{
const float maxFloat = std::numeric_limits<float>::max();
AABBMin.set(maxFloat,maxFloat,maxFloat);
AABBMax.set(-maxFloat,-maxFloat,-maxFloat);
}
// Prepare modifiers for processing
activeModifiers.clear();
for (std::vector<Modifier*>::iterator it = modifiers.begin(); it != modifiers.end(); ++it)
{
(*it)->beginProcess(*this);
if ((*it)->isActive())
activeModifiers.push_back(*it);
}
// Updates particles
for (size_t i = 0; i < pool.getNbActive(); ++i)
{
if ((pool[i].update(deltaTime))||((fupdate != NULL)&&((*fupdate)(pool[i],deltaTime))))
{
if (fdeath != NULL)
(*fdeath)(pool[i]);
if (nbBorn > 0)
{
pool[i].init();
launchParticle(pool[i],emitterIt,nbManualBorn);
--nbBorn;
}
else
{
particleData[i].sqrDist = 0.0f;
pool.makeInactive(i);
--i;
}
}
else
{
if (boundingBoxEnabled)
updateAABB(pool[i]);
if (distanceComputationEnabled)
pool[i].computeSqrDist();
}
}
// Terminates modifiers processing
for (std::vector<Modifier*>::iterator it = modifiers.begin(); it != modifiers.end(); ++it)
(*it)->endProcess(*this);
// Emits new particles if some left
for (int i = nbBorn; i > 0; --i)
pushParticle(emitterIt,nbManualBorn);
// Sorts particles if enabled
if ((sortingEnabled)&&(pool.getNbActive() > 1))
sortParticles(0,pool.getNbActive() - 1);
if ((!boundingBoxEnabled)||(pool.getNbActive() == 0))
{
AABBMin.set(0.0f,0.0f,0.0f);
AABBMax.set(0.0f,0.0f,0.0f);
}
return (hasActiveEmitters)||(pool.getNbActive() > 0);
}
bool Group::update(float deltaTimeInSeconds)
{
uint32 nbManualBorn = NumOfBufferedParticles;
uint32 nbAutoBorn = 0;
bool hasActiveEmitters = false;
// Updates emitters
activeEmitters.clear();
Emitter** endIt = emitters.end();
for( Emitter** it = emitters.begin(); it < endIt; ++it )
{
if( (*it)->isActive() )
{
uint32 nb = (*it)->updateNumber(deltaTimeInSeconds);
if( nb > 0 )
{
EmitterData data = {*it, nb};
activeEmitters.add(data);
nbAutoBorn += nb;
}
}
hasActiveEmitters |= !((*it)->isSleeping());
}
EmitterData* emitterIt = activeEmitters.begin();
uint32 nbBorn = nbAutoBorn + nbManualBorn;
// Inits bounding box
if(boundingBoxEnabled)
{
boundingBoxAABB.vcMin.Set(0, 0, 0);
boundingBoxAABB.vcMax.Set(0, 0, 0);
boundingBoxAABB.vcCenter.Set(0, 0, 0);
}
// Prepare modifiers for processing
activeModifiers.clear();
for( Modifier** it = modifiers.begin(); it < modifiers.end(); ++it )
{
(*it)->beginProcess(*this);
if( (*it)->isActive() )
activeModifiers.add(*it);
}
// Updates particles
for( uint32 i = 0; i < pool.getSizeOfActive(); ++i )
{
if( pool[i].update(deltaTimeInSeconds) || ((fupdate != NULL) && ((*fupdate)(pool[i], deltaTimeInSeconds))) )
{
if( fdeath != NULL )
(*fdeath)(pool[i]);
if( nbBorn > 0 )
{
pool[i].init();
launchParticle(pool[i], emitterIt, nbManualBorn);
--nbBorn;
}
else
{
particleData[i].sqrDist = 0.0f;
pool.makeInactive(i);
--i;
}
}
else
{
if( boundingBoxEnabled )
updateAABB(pool[i]);
if( distanceComputationEnabled )
pool[i].computeSqrDist();
}
}
// Terminates modifiers processing
for( Modifier** it = modifiers.begin(); it < modifiers.end(); ++it )
(*it)->endProcess(*this);
// Emits new particles if some left
for( uint32 i = nbBorn; i > 0; --i )
pushParticle(emitterIt, nbManualBorn);
// Sorts particles if enabled
if( sortingEnabled && (pool.getSizeOfActive() > 1) )
sortParticles(0, pool.getSizeOfActive() - 1);
if( !boundingBoxEnabled || (pool.getSizeOfActive() == 0) )
{
boundingBoxAABB.vcMin.Set(0, 0, 0);
boundingBoxAABB.vcMax.Set(0, 0, 0);
boundingBoxAABB.vcCenter.Set(0, 0, 0);
}
return hasActiveEmitters || (pool.getSizeOfActive() > 0);
}