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

How it works...

As always, we create a new interface, and then add some function definitions to the IInterface class. We use the BlueprintNativeEvent specifier to indicate that we want to declare a default implementation in C++ that can then be overridden in Blueprint. We create a new class (inheriting from StaticMeshActor for convenience) and implement the interface on it.

In the implementation of the new class constructor, we load a static mesh and set our collision as usual. We then add an implementation for our interface function, which simply prints a message to the screen.

If you were using this in a full-blown project, you could play animations, play audio, alter the user interface, and whatever else was necessary to start a conversation ...