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datablock-temp-clone -- Implements creation of temporary datablock clones to allow late substitution of datablock fields.

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This commit is contained in:
Marc Chapman 2017-07-26 21:10:43 +01:00
parent 83c533249f
commit 43815793d1
24 changed files with 865 additions and 11 deletions
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147
Engine/source/T3D/fx/particleEmitter.cpp
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@ -712,6 +712,134 @@ void ParticleEmitterData::allocPrimBuffer( S32 overrideSize )
delete [] indices;
}
//#define TRACK_PARTICLE_EMITTER_DATA_CLONES
#ifdef TRACK_PARTICLE_EMITTER_DATA_CLONES
static int emitter_data_clones = 0;
#endif
ParticleEmitterData::ParticleEmitterData(const ParticleEmitterData& other, bool temp_clone) : GameBaseData(other, temp_clone)
{
#ifdef TRACK_PARTICLE_EMITTER_DATA_CLONES
emitter_data_clones++;
if (emitter_data_clones == 1)
Con::errorf("ParticleEmitterData -- Clones are on the loose!");
#endif
ejectionPeriodMS = other.ejectionPeriodMS;
periodVarianceMS = other.periodVarianceMS;
ejectionVelocity = other.ejectionVelocity;
velocityVariance = other.velocityVariance;
ejectionOffset = other.ejectionOffset;
ejectionOffsetVariance = other.ejectionOffsetVariance;
thetaMin = other.thetaMin;
thetaMax = other.thetaMax;
phiReferenceVel = other.phiReferenceVel;
phiVariance = other.phiVariance;
softnessDistance = other.softnessDistance;
ambientFactor = other.ambientFactor;
lifetimeMS = other.lifetimeMS;
lifetimeVarianceMS = other.lifetimeVarianceMS;
overrideAdvance = other.overrideAdvance;
orientParticles = other.orientParticles;
orientOnVelocity = other.orientOnVelocity;
useEmitterSizes = other.useEmitterSizes;
useEmitterColors = other.useEmitterColors;
alignParticles = other.alignParticles;
alignDirection = other.alignDirection;
particleString = other.particleString;
particleDataBlocks = other.particleDataBlocks; // -- derived from particleString
dataBlockIds = other.dataBlockIds; // -- derived from particleString
partListInitSize = other.partListInitSize; // -- approx calc from other fields
primBuff = other.primBuff;
blendStyle = other.blendStyle;
sortParticles = other.sortParticles;
reverseOrder = other.reverseOrder;
textureName = other.textureName;
textureHandle = other.textureHandle; // -- TextureHandle loads using textureName
highResOnly = other.highResOnly;
renderReflection = other.renderReflection;
fade_color = other.fade_color;
fade_size = other.fade_size;
fade_alpha = other.fade_alpha;
ejectionInvert = other.ejectionInvert;
parts_per_eject = other.parts_per_eject; // -- set to 1 (used by subclasses)
use_emitter_xfm = other.use_emitter_xfm;
#if defined(AFX_CAP_PARTICLE_POOLS)
pool_datablock = other.pool_datablock;
pool_index = other.pool_index;
pool_depth_fade = other.pool_depth_fade;
pool_radial_fade = other.pool_radial_fade;
do_pool_id_convert = other.do_pool_id_convert; // -- flags pool id conversion need
#endif
}
ParticleEmitterData::~ParticleEmitterData()
{
if (!isTempClone())
return;
for (S32 i = 0; i < particleDataBlocks.size(); i++)
{
if (particleDataBlocks[i] && particleDataBlocks[i]->isTempClone())
{
delete particleDataBlocks[i];
particleDataBlocks[i] = 0;
}
}
#ifdef TRACK_PARTICLE_EMITTER_DATA_CLONES
if (emitter_data_clones > 0)
{
emitter_data_clones--;
if (emitter_data_clones == 0)
Con::errorf("ParticleEmitterData -- Clones eliminated!");
}
else
Con::errorf("ParticleEmitterData -- Too many clones deleted!");
#endif
}
ParticleEmitterData* ParticleEmitterData::cloneAndPerformSubstitutions(const SimObject* owner, S32 index)
{
if (!owner)
return this;
bool clone_parts_db = false;
// note -- this could be checked when the particle blocks are evaluated
for (S32 i = 0; i < this->particleDataBlocks.size(); i++)
{
if (this->particleDataBlocks[i] && (this->particleDataBlocks[i]->getSubstitutionCount() > 0))
{
clone_parts_db = true;
break;
}
}
ParticleEmitterData* sub_emitter_db = this;
if (this->getSubstitutionCount() > 0 || clone_parts_db)
{
sub_emitter_db = new ParticleEmitterData(*this, true);
performSubstitutions(sub_emitter_db, owner, index);
if (clone_parts_db)
{
for (S32 i = 0; i < sub_emitter_db->particleDataBlocks.size(); i++)
{
if (sub_emitter_db->particleDataBlocks[i] && (sub_emitter_db->particleDataBlocks[i]->getSubstitutionCount() > 0))
{
ParticleData* orig_db = sub_emitter_db->particleDataBlocks[i];
sub_emitter_db->particleDataBlocks[i] = new ParticleData(*orig_db, true);
orig_db->performSubstitutions(sub_emitter_db->particleDataBlocks[i], owner, index);
}
}
}
}
return sub_emitter_db;
}
//-----------------------------------------------------------------------------
// ParticleEmitter
@ -743,6 +871,7 @@ ParticleEmitter::ParticleEmitter()
// ParticleEmitter should be allocated on the client only.
mNetFlags.set( IsGhost );
mDataBlock = 0;
}
//-----------------------------------------------------------------------------
@ -754,6 +883,19 @@ ParticleEmitter::~ParticleEmitter()
{
delete [] part_store[i];
}
if (db_temp_clone && mDataBlock && mDataBlock->isTempClone())
{
for (S32 i = 0; i < mDataBlock->particleDataBlocks.size(); i++)
{
if (mDataBlock->particleDataBlocks[i] && mDataBlock->particleDataBlocks[i]->isTempClone())
{
delete mDataBlock->particleDataBlocks[i];
mDataBlock->particleDataBlocks[i] = 0;
}
}
delete mDataBlock;
mDataBlock = 0;
}
}
//-----------------------------------------------------------------------------
@ -832,6 +974,11 @@ bool ParticleEmitter::onNewDataBlock( GameBaseData *dptr, bool reload )
part_list_head.next = NULL;
n_parts = 0;
}
if (mDataBlock->isTempClone())
{
db_temp_clone = true;
return true;
}
scriptOnNewDataBlock();
return true;