How to EnableInput() Through code? how to reference the PlayerController?

Development Programming & Scripting
1

EnableInput(/???/);

This function requires reference to Player Controller. In BP you have a node for getting current PlayerController. How do I do the same thing in code? and why do I even need to reference a PlayerController to enable input? I just want to program some input.

2

I Found the answer on some vague forum thread.

first you define a BeginPlay(), why is it virtual for I dont know.

virtual void BeginPlay() override;

then you EnableInput() and they way to get the PlayerController is to say GetWorld()->GetFirstPlayerController() and that gets you the Controller.

void AAIBot::BeginPlay()
{
	Super::BeginPlay();

	if (GEngine)
	{
		GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Yellow, TEXT("HELLO WORLD"));
	}

	EnableInput(GetWorld()->GetFirstPlayerController());
}

DO NOT, ever try to do this in the constructor or else Unreal 4 will crash and your project will be lost forever.