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#include "UnityPrefix.h"
#include "SubModule.h"
#include "Runtime/BaseClasses/ObjectDefines.h"
#include "Runtime/Serialize/TransferFunctions/SerializeTransfer.h"
#include "../ParticleSystemUtils.h"
#include "Runtime/Graphics/ParticleSystem/ParticleSystem.h" // Only because of PPtr comparison
bool IsUsingSubEmitter(ParticleSystem* emitter)
{
const void* shurikenSelf = NULL;
return emitter != shurikenSelf;
}
SubModule::SubModule () : ParticleSystemModule(false)
{
}
void SubModule::Update (const ParticleSystemReadOnlyState& roState, ParticleSystemState& state, ParticleSystemParticles& ps, size_t fromIndex, size_t toIndex, float dt) const
{
Assert(state.numCachedSubDataBirth <= kParticleSystemMaxNumEmitAccumulators);
for(int i = 0; i < state.numCachedSubDataBirth; i++)
{
const ParticleSystemSubEmitterData& data = state.cachedSubDataBirth[i];
//const bool culled = (data.maxLifetime < state.accumulatedDt);
const float startDelay = data.startDelayInSec;
const float length = data.lengthInSec;
for (int q = fromIndex; q < toIndex; ++q)
{
const float t = std::max(0.0f, ps.startLifetime[q] - ps.lifetime[q] - dt) - startDelay;
const bool started = (t >= 0.0f);
const bool ended = (t >= length);
if(started && !ended)
{
ParticleSystemEmissionState emissionState;
emissionState.m_ToEmitAccumulator = ps.emitAccumulator[i][q];
RecordEmit(emissionState, data, roState, state, ps, kParticleSystemSubTypeBirth, i, q, t, dt, length);
ps.emitAccumulator[i][q] = emissionState.m_ToEmitAccumulator;
}
}
}
}
void SubModule::RemoveDuplicatePtrs (ParticleSystem** shurikens)
{
for(int i = 0; i < kParticleSystemMaxSubTotal-1; i++)
for(int j = i+1; j < kParticleSystemMaxSubTotal; j++)
if(shurikens[i] && (shurikens[i] == shurikens[j]))
shurikens[i] = NULL;
}
// This can not be cached between frames since the referenced particle systems might be deleted at any point.
int SubModule::GetSubEmitterPtrs (ParticleSystem** subEmitters) const
{
for(int i = 0; i < kParticleSystemMaxSubTotal; i++)
subEmitters[i] = NULL;
int numSubEmitters = 0;
for(int i = 0; i < kParticleSystemMaxSubBirth; i++)
{
ParticleSystem* subParticleSystem = m_SubEmittersBirth[i];
if (IsUsingSubEmitter(subParticleSystem))
subEmitters[numSubEmitters++] = subParticleSystem;
}
for(int i = 0; i < kParticleSystemMaxSubCollision; i++)
{
ParticleSystem* subParticleSystem = m_SubEmittersCollision[i];
if (IsUsingSubEmitter(subParticleSystem))
subEmitters[numSubEmitters++] = subParticleSystem;
}
for(int i = 0; i < kParticleSystemMaxSubDeath; i++)
{
ParticleSystem* subParticleSystem = m_SubEmittersDeath[i];
if (IsUsingSubEmitter(subParticleSystem))
subEmitters[numSubEmitters++] = subParticleSystem;
}
return numSubEmitters;
}
int SubModule::GetSubEmitterPtrsBirth (ParticleSystem** subEmitters) const
{
int numSubEmitters = 0;
for(int i = 0; i < kParticleSystemMaxSubBirth; i++)
{
ParticleSystem* subParticleSystem = m_SubEmittersBirth[i];
if (IsUsingSubEmitter(subParticleSystem))
subEmitters[numSubEmitters++] = subParticleSystem;
}
return numSubEmitters;
}
int SubModule::GetSubEmitterPtrsCollision (ParticleSystem** subEmitters) const
{
int numSubEmitters = 0;
for(int i = 0; i < kParticleSystemMaxSubCollision; i++)
{
ParticleSystem* subParticleSystem = m_SubEmittersCollision[i];
if (IsUsingSubEmitter(subParticleSystem))
subEmitters[numSubEmitters++] = subParticleSystem;
}
return numSubEmitters;
}
int SubModule::GetSubEmitterPtrsDeath(ParticleSystem** subEmitters) const
{
int numSubEmitters = 0;
for(int i = 0; i < kParticleSystemMaxSubDeath; i++)
{
ParticleSystem* subParticleSystem = m_SubEmittersDeath[i];
if (IsUsingSubEmitter(subParticleSystem))
subEmitters[numSubEmitters++] = subParticleSystem;
}
return numSubEmitters;
}
int SubModule::GetSubEmitterTypeCount(ParticleSystemSubType type) const
{
int count = 0;
const void* shurikenSelf = NULL;
if(type == kParticleSystemSubTypeBirth) {
for(int i = 0; i < kParticleSystemMaxSubBirth; i++)
if(m_SubEmittersBirth[i] != shurikenSelf)
count++;
} else if(type == kParticleSystemSubTypeCollision) {
for(int i = 0; i < kParticleSystemMaxSubCollision; i++)
if(m_SubEmittersCollision[i] != shurikenSelf)
count++;
} else if(type == kParticleSystemSubTypeDeath) {
for(int i = 0; i < kParticleSystemMaxSubDeath; i++)
if(m_SubEmittersDeath[i] != shurikenSelf)
count++;
} else {
Assert(!"Sub emitter type not implemented.");
}
return count;
}
template<class TransferFunction>
void SubModule::Transfer (TransferFunction& transfer)
{
ParticleSystemModule::Transfer (transfer);
transfer.Transfer (m_SubEmittersBirth[0], "subEmitterBirth");
transfer.Transfer (m_SubEmittersBirth[1], "subEmitterBirth1");
transfer.Transfer (m_SubEmittersCollision[0], "subEmitterCollision");
transfer.Transfer (m_SubEmittersCollision[1], "subEmitterCollision1");
transfer.Transfer (m_SubEmittersDeath[0], "subEmitterDeath");
transfer.Transfer (m_SubEmittersDeath[1], "subEmitterDeath1");
}
INSTANTIATE_TEMPLATE_TRANSFER(SubModule)
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