Types
FMassArchetypeData
An archetype is defined by a collection of unique fragment types (no duplicates).
Order doesn’t matter, there will only ever be one FMassArchetypeData per unique set of fragment types per entity manager subsystem.
FMassArchetypeHandle
An opaque handle to an archetype.
FMassArchetypeEntityCollection
A struct that converts an arbitrary array of entities of given Archetype into a sequence of continuous entity chunks. The goal is to have the user create an instance of this struct once and run through a bunch of systems. The runtime code usually uses FMassArchetypeChunkIterator to iterate on the chunk collection.