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());
}
private PackedComponent PackComponent(EntityGuid entityGuid, int typeIndex, ulong stableTypeHash)
{
var flags = ComponentTypeFlags.None;
if ((typeIndex & TypeManager.ChunkComponentTypeFlag) != 0)
{
flags |= ComponentTypeFlags.ChunkComponent;
}
var packedEntityIndex = PackedEntityCollection.GetOrAdd(entityGuid);
var packedTypeIndex = PackedStableTypeHashCollection.GetOrAdd(new ComponentTypeHash
{
StableTypeHash = stableTypeHash,
Flags = flags
});
return(new PackedComponent
{
PackedEntityIndex = packedEntityIndex,
PackedTypeIndex = packedTypeIndex
});
}