UE4 connection between blueprints?

Question

C++ / C#

Good evening, such a question arose when I started studying the ue4 engine.
And so, how it is possible to carry out communication between blueprint'ami? In particular between Character and GameMode? I need to take the properties of one of the components of one print and check this property in another.
Of course, this is easy to implement in the code, it is enough to include the library, but what about here?
I know about such a thing as interfaces in UE4 , but perhaps I did not fully understand the essence of their use.

Answer 1

In general, it is not very clear what you mean by "components".
If you have ever worked with C#/Java (or studied C++ deeply), then absolutely everything you see in Blueprint is already familiar to you: fields, methods, etc. Before working with Blueprints, I recommend that you familiarize yourself with the basic principles of OOP.
You can get the current GameModeBase ( link ), and check its value from any other Blueprint.