SetSimulatePhysics — enable or disable physics simulation on a component

Call on the mesh/primitive component, NOT on the actor itself. Use GetMesh() to get SkeletalMeshComponent first.

SetSimulatePhysics — enable or disable physics simulation on component

UPrimitiveComponent method. Target must have collision.

SetControlRotation — set controller's control rotation

Enhanced Input setup: add mapping context and bind actions in UE5

SETUP (once per project): 1. Create Input Mapping Context (IMC_Default) in content browser. 2. Create Input Actions (IA_Move, IA_Jump, IA_Look) — set Value Type. 3. In IMC_Default, map keys to each IA. IN CHARACTER EventBeginPlay: GetController → CastTo<PlayerController> → GetSubsystem(UEnhancedInputLocalPlayerSubsystem) → AddMappingContext(IMC_Default, Priority=0). IN EVENT GRAPH: Right-click → search IA_Move → 'IA_Move (EnhancedInputAction)' node appears with Triggered/Started/Completed exec outputs and 'Action Value' data output. For 2D movement: IA_Move → GetAxis2D(ActionValue) → X to AddMovementInput(GetActorRightVector, ScaleValue=X), Y to AddMovementInput(GetActorForwardVector, ScaleValue=Y).

Event Dispatcher: create, bind, and call with custom data

SETUP: In your BP, create an Event Dispatcher (e.g. 'OnPlayerDied') in the My Blueprint panel. BIND (in another BP): Get reference to actor → Bind Event to OnPlayerDied → connect a Custom Event as the target. CALL (in owning BP): Call OnPlayerDied (appears as a pink node) → this broadcasts to all bound listeners. Key: Event Dispatchers are called with 'Call <DispatcherName>' (not 'Broadcast'). Binding is done via 'Bind Event to <DispatcherName>' which has an 'Event' exec-like pin.

SetActorHiddenInGame — show or hide actor at runtime

SetActorHiddenInGame — show or hide actor at runtime

NOT K2_ prefixed.

EnableInput — allow this actor to receive input events

Must call EnableInput(GetPlayerController(0)) before BindAction/BindAxis events fire on the actor.

ComposeRotators — add two rotators together

CreateWidget — create a UserWidget instance

Always pass a valid PlayerController as OwningPlayer. Cast the ReturnValue to your specific widget class.