References/pointers

Types defined in Nim and by Unreal Engine automatically get a pointer type generated for them. To get a pointer to a type, you can add Ptr to the end of the type name. For example, AActor has a pointer type AActorPtr.

uClass ACoolActor of AActor:
  ufuncs(BlueprintCallable):
    proc doSomethingCool() =
      ...

proc doSomethingCool(coolActor: ACoolActorPtr) =
  coolActor.doSomethingCool()