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bugfix(savegame): Restore particle system IDs before registation with ParticleSystemManager #2316

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bugfix(savegame): Restore particle system IDs before registation with ParticleSystemManager #2316

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27 changes: 18 additions & 9 deletions Core/GameEngine/Source/GameClient/System/ParticleSys.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1215,7 +1215,10 @@ ParticleSystem::ParticleSystem( const ParticleSystemTemplate *sysTemplate,
m_personalityStore = 0;
m_controlParticle = nullptr;

TheParticleSystemManager->friend_addParticleSystem(this);
if ( m_systemID != INVALID_PARTICLE_SYSTEM_ID )
{
TheParticleSystemManager->friend_addParticleSystem(this);
}

//DEBUG_ASSERTLOG(!(m_totalParticleSystemCount % 10 == 0), ( "TotalParticleSystemCount = %d", m_totalParticleSystemCount ));
}
Expand Down Expand Up @@ -3364,22 +3367,28 @@ void ParticleSystemManager::xfer( Xfer *xfer )
}

// create system
system = createParticleSystem( systemTemplate, FALSE );
// TheSuperHackers @bugfix stephanmeesters 16/02/2026
// Particle systems originally were assigned an incrementing system ID in the constructor that did not
// always match the ID that was xfer'd. When using findParticleSystem this would cause master/slave lookups to fail.
// Defer registering particle systems to ParticleSys until the system ID is properly restored.
system = newInstance(ParticleSystem)( systemTemplate, INVALID_PARTICLE_SYSTEM_ID, FALSE );

if( system == nullptr )
{
// read system data
xfer->xferSnapshot( system );

DEBUG_CRASH(( "ParticleSystemManager::xfer - Unable to allocate particle system '%s'",
if( system->getSystemID() == INVALID_PARTICLE_SYSTEM_ID )
{
DEBUG_CRASH(( "ParticleSystemManager::xfer - Unable to restore system ID to particle system '%s'",
systemName.str() ));
throw SC_INVALID_DATA;

}

// read system data
xfer->xferSnapshot( system );
friend_addParticleSystem(system);

// TheSuperHackers @bugfix stephanmeesters 16/02/2026
// Ensure that particle systems created later in the game won't collide with the xfer'd systems.
m_uniqueSystemID = MAX(m_uniqueSystemID, system->getSystemID());
}

}

}
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