en: It is necessary to turn the incoming Actor, but I can’t access the class members. Please help.
ru: Необходимо повернуть входящий Актор, но не могу получить доступ к членам класса. Прошу помощи.
Hi, I’m a total newbie programmer. But I’ll tell you what I think helpful ( take it with a grain of salt ).
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If you want to just declare a pointer or a reference of a certain class, then you only need to “forward declare” the class.
( that seems to be not your problem since you have AActor pointer already in the function signature and no error therein ). -
If you want to access a member inside the class AActor however, then you need to add #include “GameFramework/Actor.h” in the file you’re working in.
If this function that you posted is in the header file, then just add #include “GameFramework/Actor.h” up in your file.
If this function is in the cpp file then add #include “GameFramework/Actor.h” in the header file as well.
Please note that any #include you add must be above YourClass.generated.h line.
I hope that would help.
If that worked, I’ll just add whenever you access a pointer member, then you have to add the If(pointer) ahead of the sentence to check whether the pointer value at that moment is null or valid, because accessing a null pointer is a fatal error in C++. So you write like this: If(Actor) Actor->SetActorRotation ( myNewOrientation);
This expression If(Actor) is equivalent to writing If ( Actor != nullptr ) or If( Actor!=0 ). The first version is the shortest, so we use it a lot.
You have to do that each time you access the pointer, or alternatively you can start the function by If (Actor = 0 ) return; for once and then forget about that in the rest of the function statements. ( if the logic in the function agrees with that of course, which mostly will do )
These are important safety measures.
Anyway, take all what I mentioned ( particularly the first half ) with a grain of salt.
Alzaher, Thank you very much. Happened. I’m smarter thanks to you.
