private static PackedSharedComponentDataChange[] GetChangedSharedComponents(
PackedCollection <EntityGuid> packedEntityCollection,
PackedCollection <ComponentTypeHash> packedStableTypeHashCollection,
NativeList <DeferredPackedSharedComponentDataChange> changes,
ManagedComponentStore beforeManagedComponentStore,
ManagedComponentStore afterManagedComponentStore)
{
if (changes.Length == 0)
{
return(s_EmptySetSharedComponentDiff);
}
var result = new List <PackedSharedComponentDataChange>();
for (var i = 0; i < changes.Length; i++)
{
var change = changes[i];
object afterValue = null;
if (change.AfterSharedComponentIndex != 0)
{
afterValue = afterManagedComponentStore.GetSharedComponentDataBoxed(change.AfterSharedComponentIndex, change.TypeIndex);
}
if (change.BeforeSharedComponentIndex > -1 && change.AfterSharedComponentIndex != 0)
{
var beforeValue = beforeManagedComponentStore.GetSharedComponentDataBoxed(change.BeforeSharedComponentIndex, change.TypeIndex);
if (TypeManager.Equals(beforeValue, afterValue, change.TypeIndex))
{
continue;
}
}
var packedEntityIndex = packedEntityCollection.GetOrAdd(change.EntityGuid);
var packedTypeIndex = packedStableTypeHashCollection.GetOrAdd(new ComponentTypeHash
{
StableTypeHash = TypeManager.GetTypeInfo(change.TypeIndex).StableTypeHash
});
var packedComponent = new PackedComponent
{
PackedEntityIndex = packedEntityIndex,
PackedTypeIndex = packedTypeIndex
};
result.Add(new PackedSharedComponentDataChange
{
Component = packedComponent,
BoxedSharedValue = afterValue
});
}
return(result.ToArray());
}
public unsafe BuildChangeSetTask(WorldState beforeState, WorldState afterState, TypeInfoStream typeInfoStream, Allocator allocator)
{
m_BeforeState = beforeState;
m_AfterState = afterState;
m_TypeInfoStream = typeInfoStream;
m_CreatedEntities = new NativeList <EntityInChunkWithComponent <EntityGuid> >(1, allocator);
m_ModifiedEntities = new NativeList <ModifiedEntity>(1, allocator);
m_DestroyedEntities = new NativeList <EntityInChunkWithComponent <EntityGuid> >(1, allocator);
m_PackedEntities = new PackedCollection <EntityGuid>(1, allocator);
m_PackedStableTypeHashes = new PackedCollection <ComponentTypeHash>(1, allocator);
m_AddComponents = new NativeList <PackedComponent>(1, allocator);
m_RemoveComponents = new NativeList <PackedComponent>(1, allocator);
m_ComponentDataStream = new ComponentDataStream(allocator);
m_EntityReference = new NativeList <EntityReferenceChange>(1, allocator);
m_LinkedEntityGroupAdditions = new NativeList <LinkedEntityGroupChange>(1, allocator);
m_LinkedEntityGroupRemovals = new NativeList <LinkedEntityGroupChange>(1, allocator);
m_BeforeEntityToEntityGuid = new EntityToComponentMap <EntityGuid>(m_BeforeState.EntityComponentStore, allocator);
m_AfterEntityToEntityGuid = new EntityToComponentMap <EntityGuid>(m_AfterState.EntityComponentStore, allocator);
IsCreated = true;
}