Hey guys, I’ve had actual fun doing C++, which surprised me so far. But I still have a couple of problems and there.
1: One of the questions I had is about Tick and void GetLifetimeReplicatedProps. How come Tick I have to define in my header file and use ‘override’ to be able to use it and for void GetLifetimeReplicatedProps I don’t have to?
2: Also, when do I have to type ‘class’ when using TSubClassOf<class SomeActor> compared to TSubClassOf<SomeActor>
3: Can I print something to the screen ONLY for a specific client? When using AddOnScreenDebug thingy on the client, it also prints it on the server.
4: I managed to get a TSubClassOf<> replicated and I really like this. I was wondering however, are there major differences between UClass and TSubClassOf? Should I always use TSubClassOf or are there times where its better to just use class?
5: Is it possible to replicate an actor to owning client and server bot NOT to any other clients?
Thank you in advance, I hope someone can help me out
1: Because GetLifetimeReplicatedProps is automatically declared for you by Unreal if your class has any UPROPERTY(Replicated).
2: Because C++ doesn’t know what SomeActor is when it comes across it, so you have to tell it that the word SomeActor means a class called SomeActor. You don’t need to do this if the header for SomeActor is included already, because C++ then knows about it. Look up forward declaration to see how this works and why its useful.
3: When you use Play in Editor, all your players share the same instance of GEngine so they all print the AddOnScreenDebug, in standalone I don’t think this is true (but I could be wrong). Use APlayerController::ClientMessage to print a message to only one clients screen, but you need a reference to the player controller.
4: With UClass * you can reference any class at any time, with TSubclassOf<> you can restrict the types it can refer to, so in the editor only subclasses of that type show up. So prefer TSubclassOf<> when you know what kind of classes you want to store, and UClass * for when you need to be able to use any class.
5: I’m working on similar problems myself, but don’t have any robust solutions.
Maybe something like that to make it not relevant for other actors except server and owner? Not sure exactly on the usage however, I come from c#, I’m still very clunky with c++
