Timer with Set Timer by Function Name for repeating actions

Pattern: BeginPlay → K2_SetTimer(Self, 'MyFunction', 2.0, true) → store TimerHandle. Stop: ClearAndInvalidateTimerByHandle(TimerHandle). Prefer SetTimerByEvent over FunctionName for type safety. Delay node is simpler for one-shot but only works in Event Graph.

Timer: call a function repeatedly using SetTimerByFunctionName

Pattern: EventBeginPlay → SetTimerByFunctionName(Object=self, FunctionName='OnTimerFired', Time=1.0, bLooping=true). Create a separate custom event/function named 'OnTimerFired' — this is what the timer will call. SetTimerByFunctionName inputs: 'Object' (Object, use 'self'), 'FunctionName' (string), 'Time' (float, interval in seconds), 'bLooping' (bool). Output: 'ReturnValue' (TimerHandle).

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.

Timer

Schedules a function to run after a delay or on a repeating interval. Cleaner than Delay for repeating work.

SetTimerByFunctionName — call a function repeatedly on a timer

SetTimerByFunctionName — set timer that calls a function

K2_SetTimer. Prefer SetTimerByEvent for type safety.

SetTimerByEvent — set timer that fires a custom event delegate

K2_SetTimerDelegate. Safer than FunctionName version. Create delegate from custom event.

K2_SetTimer — set timer by function name with looping

Internal name is K2_SetTimer not SetTimerByFunctionName.

ClearAndInvalidateTimerByHandle — stop and clear a timer

K2_ClearAndInvalidateTimerHandle.

Countdown timer with UI update using SetTimerByFunctionName

Pattern: Variables: TimeRemaining (float), TimerHandle (TimerHandle). Start: EventBeginPlay → SetTimerByFunctionName(Object=self, FunctionName='OnTick', Time=1.0, bLooping=true). OnTick custom function: Subtract_FloatFloat(A=TimeRemaining, B=1.0) → SetVariable(TimeRemaining) → Branch(TimeRemaining <= 0) → True: ClearAndInvalidateTimerByHandle(Handle=TimerHandle) → OnTimerExpired. UI: GetHUD → CastTo<WBP_HUD> → SetTimerText(Conv_FloatToString(TimeRemaining)). Key: SetTimerByFunctionName output 'ReturnValue' is TimerHandle — save it to clear later.