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API > API/Runtime > API/Runtime/MassEntity > API/Runtime/MassEntity/FMassEntityManager
| Type | Name | Description | |
|---|---|---|---|
| TSharedRef< FEntityCreationContext > | The main use-case for this function is to create a blank FEntityCreationContext and hold on to it while creating a bunch of entities (with multiple calls to BatchCreate* and/or BatchBuild*) and modifying them (with mutating batched API) while not causing multiple Observers to trigger. | ||
| TSharedRef< FEntityCreationContext > | GetOrMakeCreationContext
(
TConstArrayView< FMassEntityHandle > ReservedEntities, |
If ActiveCreationContext is not valid the function creates a new shared FEntityCreationContext instance and returns that. |