DoOnce — execute the output only the first time it is called

Has 'Reset' exec input to allow it to fire again. Default bStartClosed=false means it fires first time.

DoOnce

Lets execution through once, then blocks subsequent attempts until Reset is called. Useful for one-shot triggers.

EventBeginPlay — fires once when actor starts

K2Node_Event. No inputs. Always fires once after construction.

BeginPlay

Fires once on actor spawn (after construction). Use for setup that needs other actors in the world to exist.

DoOnce — execute only the first time, block subsequent calls

Macro. Call Reset input to allow re-triggering.

DoN — execute N times then stop

Health regeneration over time with timer

Pattern: Variables RegenRate(float)=5.0, RegenDelay(float)=3.0, RegenTimerHandle. On damage received: ClearTimer(RegenTimerHandle) → SET timer(RegenDelay, RegenTick, looping=true). RegenTick function: Branch(Health < MaxHealth) → True: SET Health = FClamp(Health + RegenRate*DeltaSeconds, 0, MaxHealth). False: ClearTimer.

string

string

StopMontage — stop a currently playing AnimMontage

Event BeginPlay — fires once when actor is spawned or game starts