Can UObjects be replicated?

[maikklein]

@iniside;379393

Not entirely true. Actors are big (about 2KB) while plain object is less than 300 bytes.
Using actor just for the replication is just wasteful. If something doesn’t need physical representation in world, but you still need reflection and polymorphism, UObjects are very good choice for replication. The only cevat is that you have to replicate them trough actor or actor component. But that’s not really hard.

Unless the you only have very few replicated actors, then whatever. For anything more than 20 I would think twice.

I came to the same conclusion, Actors are great for single long lived objects, but I need many small short lived objects. For example I currently have around 15 different movement states for my MovementComponent like GameplayState_MoveToLocation, GameplayState_MoveToTarget, GameplayState_DashToLocation etc. Those objects may only live for a few seconds until they get replaced. Considering that this movement component will be used by every “unit” in my game and I can have ~100 of active units in my game things might matter.

Also it’s very easy to replicate an UObject, I mean it’s “basically” one line if they are owned by an Actor or ActorComponent.