SetActorTickEnabled — enable or disable Tick for this actor

Enable physics ragdoll and apply explosion impulse

Pattern: OnDeath → GetMesh → SetSimulatePhysics(bSimulate=true) → AddImpulse(Impulse=MakeVector(X=0,Y=0,Z=500), bVelChange=true). For explosion: GetMesh → AddRadialImpulse(Origin=ExplosionLocation, Radius=500, Strength=1000, Falloff=RIF_Linear, bVelChange=false). Key: Always call SetSimulatePhysics BEFORE AddImpulse. AddImpulse input 'bVelChange=true' for direct velocity (ignores mass). AddRadialImpulse is on PrimitiveComponent.

SetComponentTickEnabled — enable or disable tick on a component

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.

Ragdoll death: disable movement, enable physics on mesh

Pattern: custom OnDeath event → GetCharacterMovement → DisableMovement() → GetMesh → SetSimulatePhysics(bSimulate=true) → SetCollisionEnabled(NoCollision) on CapsuleComponent. Key: SetSimulatePhysics is called on the MESH component (SkeletalMeshComponent), NOT on the actor or CharacterMovementComponent. Also set collision profile: SetCollisionProfileName('Ragdoll') on the mesh.

SetSimulatePhysics — enable or disable physics simulation on component

UPrimitiveComponent method. Target must have collision.

EnableInput — allow this actor to receive input events

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

AddToViewport — display a widget on screen

SetInputMode GameAndUI — allow both game and UI input

Power — raise base to exponent power

Internal function name is MultiplyMultiply_FloatFloat (operator **).