Unreal Engine 4.x Scripting with C++ Cookbook - Second Edition

How it works...

We create a new Actor class and add a box component to give the actor something that will collide with the character. Alternatively, you could subclass AVolume if you wanted to use the Binary Space Partitioning (BSP) functionality to define the volume's shape (found under Geometry in the Place section of the Modes tab).

NotifyActorBeginOverlap and NotifyActorEndOverlap are overridden so that we can perform an operation when an object enters or leaves the AntiGravityVolume area.

Inside the NotifyActorBeginOverlap implementation, we attempt to cast the object that overlapped us into an IGravityObject pointer. This tests whether the object in question implements the interface. If the pointer is valid, then the object does implement ...