Main menu with widget switching and button navigation

Pattern: WBP_MainMenu with WidgetSwitcher containing panels (Main, Options, Credits). Buttons: OnClicked → SetActiveWidgetIndex(WidgetSwitcher, PanelIndex). Play button: RemoveFromParent → OpenLevel(GameMap). Quit: QuitGame. Level BP BeginPlay: CreateWidget(MainMenu) → AddToViewport → SetInputModeUIOnly → SetShowMouseCursor(true).

Button

A clickable UMG widget. Hook OnClicked in the Graph to handle the press.

Create a Blueprint for a simple elevator that moves between two floors when a button is pressed

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Pressure plate trigger that activates when enough weight is on it

Pattern: BoxCollision trigger, variable OverlappingActors(int)=0. OnBeginOverlap: OverlappingActors++ → Branch(OverlappingActors >= RequiredCount) → Activate. OnEndOverlap: OverlappingActors-- → Branch(OverlappingActors < RequiredCount) → Deactivate. Use interface or event dispatcher to notify connected actors (doors, platforms).

Enhanced Input BindAction — bind an Input Action to a Blueprint function (UE5 new input)

UE5 Enhanced Input replaces legacy BindAxis/BindAction. In BP: use 'Enhanced Action Events' category nodes (IA_ nodes appear automatically). ETriggerEvent: Started (pressed), Triggered (held), Completed (released). Input Action outputs: 'Action Value' (InputActionValue struct) and typed output.

Create a Blueprint for a door that opens when the player overlaps a trigger and closes when they leave

WasInputKeyJustPressed — true only on the frame the key was pressed

SetInputModeGameAndUI — set input for both game and UI

Possess — make a Controller possess a Pawn