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UMG Widget State Tree is a plugin that brings State Trees into the world of UMG widgets, allowing you to build complex, reactive UI logic using a clean, visual, data-driven state machine system.
The plugin integrates StateTree framework with UMG so that widgets can maintain well-structured state logic, respond to events, and execute behaviors without relying on tangled Blueprint graphs or custom C++ boilerplate. It is particularly useful for large UI systems, in-game menus, HUD widgets, or any interface requiring predictable, testable state transitions.
๐น Core FeaturesAttach State Trees to widgets
Add a State Tree asset to any widget and let the State Tree drive its behavior, animations, visibility, and data reactions.Automatic StateTree lifecycle management
Widgets automatically initialize, start, stop, and tick their associated State Trees โ no manual calls required.
Greatly simplifies complex UI logic.
Prevents spaghetti Blueprints by isolating behavior into State Trees.
Enables predictable, testable, and maintainable UI flows.
Ideal for scalable UI (settings screens, inventory, in-game tutorials, HUD state machines, etc.).
Lets designers and programmers collaborate more cleanly.