SuggestProjectileVelocity question

[harry1511]

I am working on Battle Tank, and at this particular lesson, that uses SuggestProjectileVelocity method, I am a bit confused. So my question is:

I know I have to #include "Kismet/GameplayStatics.h" at the top. But why do I have to include the class name when calling it like this: UGameplayStatics::SuggestProjectileVelocity(...) ? It always spits out error when compiling if I don’t include the class name. Then what is the point of #include anyway? Can’t I just call SuggestProjectileVelocity(...) only, once I have #include "Kismet/GameplayStatics.h" ?

If someone can explain this clearly, I’d really appreciate.

[DanM]

@harry1511

But why do I have to include the class name when calling it like this

Because it’s a static member function of that class.

@harry1511

Then what is the point of #include anyway?

So the compiler knows what that is. Without the include the compiler is going to say “What is UGameplayStatics?” It has no idea what it is without the include.

@harry1511

Can’t I just call

No because it’s an different class, it’s not in the current scope.