Unreal Blueprints (Visual Scripting)

Structure gameplay logic in Unreal Engine 5 Blueprints: pick the right graph, expose data cleanly, and choose a communication method that doesn't create hard-reference spaghetti. Targets UE 5.4+. (Blueprints are node graphs; the snippets below describe node flows.)

When to use

• Use when authoring a Blueprint Class, wiring the Event Graph (BeginPlay/Tick/overlap), using the Construction Script, creating variables/functions/macros, or choosing how two Blueprints communicate (Cast, Interface, or Event Dispatcher).
• Use when the project has *.uproject and Blueprint *.uasset files, and the user works visually rather than in C++.

When not to use: performance-critical systems, large data structures, or anything that benefits from source control diffs and unit tests → unreal-cpp-gameplay. Player input mapping → unreal-enhanced-input. AI logic → unreal-behavior-trees.

Core workflow