static void DestroyBatch(Entity *entities, Chunk *chunk, int indexInChunk, int batchCount,
EntityComponentStore *entityComponentStore,
ManagedComponentStore managedComponentStore)
{
var archetype = chunk->Archetype;
if (!archetype->SystemStateCleanupNeeded)
{
entityComponentStore->DeallocateDataEntitiesInChunk(entities, chunk, indexInChunk, batchCount);
managedComponentStore.IncrementComponentOrderVersion(archetype, chunk->SharedComponentValues);
entityComponentStore->IncrementComponentTypeOrderVersion(archetype);
if (chunk->ManagedArrayIndex >= 0)
{
// We can just chop-off the end, no need to copy anything
if (chunk->Count != indexInChunk + batchCount)
{
managedComponentStore.CopyManagedObjects(chunk, chunk->Count - batchCount, chunk,
indexInChunk, batchCount);
}
managedComponentStore.ClearManagedObjects(chunk, chunk->Count - batchCount,
batchCount);
}
chunk->Archetype->EntityCount -= batchCount;
SetChunkCount(chunk, chunk->Count - batchCount, entityComponentStore, managedComponentStore);
}
else
{
var newType = archetype->SystemStateResidueArchetype;
var sharedComponentValues = chunk->SharedComponentValues;
if (RequiresBuildingResidueSharedComponentIndices(archetype, newType))
{
var tempAlloc = stackalloc int[newType->NumSharedComponents];
BuildResidueSharedComponentIndices(archetype, newType, sharedComponentValues, tempAlloc);
sharedComponentValues = tempAlloc;
}
// See: https://github.com/Unity-Technologies/dots/issues/1387
// For Locked Order Chunks specfically, need to make sure that structural changes are always done per-chunk.
// If trying to muutate structure in a way that is not per chunk, will hit an exception in the else clause anyway.
// This ultimately needs to be replaced by entity batch interface.
if (batchCount == chunk->Count)
{
managedComponentStore.IncrementComponentOrderVersion(archetype, chunk->SharedComponentValues);
entityComponentStore->IncrementComponentTypeOrderVersion(archetype);
EntityManagerChangeArchetypeUtility.SetArchetype(chunk, newType, sharedComponentValues,
entityComponentStore, managedComponentStore);
}
else
{
for (var i = 0; i < batchCount; i++)
{
var entity = entities[i];
managedComponentStore.IncrementComponentOrderVersion(archetype,
entityComponentStore->GetChunk(entity)->SharedComponentValues);
entityComponentStore->IncrementComponentTypeOrderVersion(archetype);
EntityManagerChangeArchetypeUtility.SetArchetype(entity, newType, sharedComponentValues,
entityComponentStore, managedComponentStore);
}
}
}
}