Blueprint Function Libraries
In UE4, there's a class called BlueprintFunctionLibary, which is meant to contain a collection of static functions that don't really belong to any specific actor and can be used in multiple parts of your project.
For instance, some of the objects that we used previously, such as the GameplayStatics object and Kismet libraries such as KismetMathLibrary and KismetSystemLibrary, are Blueprint Function Libraries. These contain functions that can be used in any part of your project.
There is at least one function in our project created by us that can be moved to a Blueprint Function library: the CanSeeActor function defined in the EnemyCharacter class.
Let's then, in the first exercise of this chapter, create our own Blueprint Function library, so that we can then move the CanSeeActor function from the EnemyCharacter class to the Blueprint Function library class.
