SetPercent on ProgressBar — set progress bar fill amount

UProgressBar::SetPercent. 0.0 to 1.0 range.

SetPercent — set ProgressBar fill amount (0.0 to 1.0)

InPercent: 0.0=empty, 1.0=full. Use Divide to convert (CurrentHealth/MaxHealth).

Widget health bar HUD that updates from player health variable

Pattern: WBP_HealthBar with ProgressBar(HealthBar, BindWidget). Player BeginPlay: CreateWidget(WBP_HealthBar, PC) → SET WidgetRef → AddToViewport. On health change: WidgetRef → SetPercent(HealthBar, CurrentHealth/MaxHealth). Alternative: use property binding in widget designer for auto-update.

Level transition with loading screen

Pattern: CreateWidget(WBP_LoadingScreen) → AddToViewport(ZOrder=100) → LoadStreamLevel or OpenLevel(NewMapName). For async: AsyncLoadLevel → OnCompleted → RemoveFromParent(LoadingWidget). Store persistent data in GameInstance before transition. Use Seamless Travel for multiplayer.

Elevator or moving platform with timeline and trigger

Pattern: Variables StartLocation(Vector), EndLocation(Vector). BeginPlay: SET StartLocation=GetActorLocation. Timeline MoveTimeline(Alpha 0→1 over Duration). Trigger overlap/button press → Play Timeline. Timeline Update: VLerp(StartLocation, EndLocation, Alpha) → SetActorLocation(Self, Result, bSweep=true). Finished: Delay → Reverse Timeline.

SetColorAndOpacity — change widget color and transparency

Dash or dodge movement with cooldown using timeline

Pattern: Variables bCanDash(bool)=true, DashDistance(float)=1000, DashDuration(float)=0.2. Input → Branch(bCanDash) → SET bCanDash=false → GetActorForwardVector → Multiply(Forward, DashDistance) → Timeline(0→1 over DashDuration) → Update: VLerp(StartLoc, StartLoc+DashOffset, Alpha) → SetActorLocation. Finished → Delay(CooldownTime) → SET bCanDash=true.

Create a Blueprint Actor that rotates slowly on EventTick using a RotationSpeed variable

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.

GetCharacterMovement — get character movement component

ACharacter method. Returns UCharacterMovementComponent.