Unreal Engine 4 Scripting with C++ Cookbook

Creating classes or structs that can be subclassed in Blueprint

While this book focuses on C++, when developing with Unreal, a more standard workflow is to implement core gameplay functionality as well as performance-critical code in C++, and expose those features to Blueprint to allow designers to prototype gameplay, which can then be refactored by programmers with additional Blueprint features, or pushed back down to the C++ layer.

One of the most common tasks, then, is to mark up our classes and structs in such a way that they are visible to the Blueprint system.

How to do it…

1. Create a new Actor class using the editor wizard; call it BaseEnemy.
2. Add the following UPROPERTY to the class:

   UPROPERTY() FString WeaponName; UPROPERTY() int32 MaximumHealth; ...