int InstantiateEntitiesOne(Entity srcEntity, Entity *outputEntities, int instanceCount, InstantiateRemapChunk *remapChunks, int remapChunksCount)
{
var src = GetEntityInChunk(srcEntity);
var srcArchetype = src.Chunk->Archetype;
var dstArchetype = srcArchetype->InstantiableArchetype;
var archetypeChunkFilter = new ArchetypeChunkFilter();
archetypeChunkFilter.Archetype = dstArchetype;
if (RequiresBuildingResidueSharedComponentIndices(srcArchetype, dstArchetype))
{
BuildResidueSharedComponentIndices(srcArchetype, dstArchetype, src.Chunk->SharedComponentValues, archetypeChunkFilter.SharedComponentValues);
}
else
{
// Always copy shared component indices since GetChunkWithEmptySlots might reallocate the storage of SharedComponentValues
src.Chunk->SharedComponentValues.CopyTo(archetypeChunkFilter.SharedComponentValues, 0, dstArchetype->NumSharedComponents);
}
Chunk *chunk = null;
int instanceBeginIndex = 0;
while (instanceBeginIndex != instanceCount)
{
chunk = GetChunkWithEmptySlots(ref archetypeChunkFilter);
int indexInChunk;
var allocatedCount = AllocateIntoChunk(chunk, instanceCount - instanceBeginIndex, out indexInChunk);
ChunkDataUtility.ReplicateComponents(src.Chunk, src.IndexInChunk, chunk, indexInChunk, allocatedCount);
AllocateEntities(dstArchetype, chunk, indexInChunk, allocatedCount,
outputEntities + instanceBeginIndex);
if (srcArchetype->NumManagedArrays > 0)
{
ManagedChangesTracker.ReplicateManagedObjects(src.Chunk, src.IndexInChunk, chunk, indexInChunk, allocatedCount, srcEntity, outputEntities + instanceBeginIndex);
}
chunk->SetAllChangeVersions(GlobalSystemVersion);
#if UNITY_EDITOR
for (var i = 0; i < allocatedCount; ++i)
{
CopyName(outputEntities[i + instanceBeginIndex], srcEntity);
}
#endif
if (remapChunks != null)
{
remapChunks[remapChunksCount].Chunk = chunk;
remapChunks[remapChunksCount].IndexInChunk = indexInChunk;
remapChunks[remapChunksCount].AllocatedCount = allocatedCount;
remapChunks[remapChunksCount].InstanceBeginIndex = instanceBeginIndex;
remapChunksCount++;
}
instanceBeginIndex += allocatedCount;
}
if (chunk != null)
{
ManagedChangesTracker.IncrementComponentOrderVersion(dstArchetype,
chunk->SharedComponentValues);
IncrementComponentTypeOrderVersion(dstArchetype);
}
return(remapChunksCount);
}
static int InstantiateEntitiesOne(Entity srcEntity, Entity *outputEntities,
int instanceCount, InstantiateRemapChunk *remapChunks, int remapChunksCount,
EntityComponentStore *entityComponentStore,
ManagedComponentStore managedComponentStore)
{
var src = entityComponentStore->GetEntityInChunk(srcEntity);
var srcArchetype = src.Chunk->Archetype;
var dstArchetype = srcArchetype->InstantiableArchetype;
var temp = stackalloc int[dstArchetype->NumSharedComponents];
if (RequiresBuildingResidueSharedComponentIndices(srcArchetype, dstArchetype))
{
BuildResidueSharedComponentIndices(srcArchetype, dstArchetype,
src.Chunk->SharedComponentValues, temp);
}
else
{
// Always copy shared component indices since GetChunkWithEmptySlots might reallocate the storage of SharedComponentValues
src.Chunk->SharedComponentValues.CopyTo(temp, 0, dstArchetype->NumSharedComponents);
}
SharedComponentValues sharedComponentValues = temp;
Chunk *chunk = null;
int instanceBeginIndex = 0;
while (instanceBeginIndex != instanceCount)
{
chunk = GetChunkWithEmptySlots(dstArchetype, sharedComponentValues,
entityComponentStore, managedComponentStore);
int indexInChunk;
var allocatedCount = AllocateIntoChunk(chunk, instanceCount - instanceBeginIndex, out indexInChunk,
entityComponentStore, managedComponentStore);
ChunkDataUtility.ReplicateComponents(src.Chunk, src.IndexInChunk, chunk, indexInChunk, allocatedCount);
entityComponentStore->AllocateEntities(dstArchetype, chunk, indexInChunk, allocatedCount,
outputEntities + instanceBeginIndex);
chunk->SetAllChangeVersions(entityComponentStore->GlobalSystemVersion);
#if UNITY_EDITOR
for (var i = 0; i < allocatedCount; ++i)
{
entityComponentStore->SetName(outputEntities[i + instanceBeginIndex], entityComponentStore->GetName(srcEntity));
}
#endif
if (remapChunks != null)
{
remapChunks[remapChunksCount].Chunk = chunk;
remapChunks[remapChunksCount].IndexInChunk = indexInChunk;
remapChunks[remapChunksCount].AllocatedCount = allocatedCount;
remapChunks[remapChunksCount].InstanceBeginIndex = instanceBeginIndex;
remapChunksCount++;
}
instanceBeginIndex += allocatedCount;
}
if (chunk != null)
{
managedComponentStore.IncrementComponentOrderVersion(dstArchetype, chunk->SharedComponentValues);
entityComponentStore->IncrementComponentTypeOrderVersion(dstArchetype);
}
return(remapChunksCount);
}
