Health and damage system with ApplyDamage and EventAnyDamage

Dealing damage: Event → ApplyDamage(TargetActor, BaseDamage, InstigatorController, DamageCauser, DamageTypeClass). Receiving: EventAnyDamage → Damage output → Subtract_FloatFloat(CurrentHealth, Damage) → FClamp(Result, 0, MaxHealth) → SET CurrentHealth → Branch(CurrentHealth <= 0) → True: DestroyActor. Initialize CurrentHealth=MaxHealth in BeginPlay.

Health system: take damage, clamp health, check death

Pattern: EventAnyDamage → Subtract_FloatFloat(A=CurrentHealth, B=Damage) → Clamp(Value=Result, Min=0, Max=MaxHealth) → SetVariable(Health=ClampResult) → Branch(Condition=(Health <= 0)) → True: call OnDeath custom event. Variables needed: Health (float), MaxHealth (float). EventAnyDamage output pin is 'Damage' (float). Clamp inputs: 'Value', 'Min', 'Max'. All floats.

EventAnyDamage — receive any type of damage

ApplyDamage — deal damage to a target actor

UGameplayStatics::ApplyDamage. Triggers EventAnyDamage on target.

Camera shake on damage feedback for player

Pattern: On EventAnyDamage → GetPlayerController(0) → GetPlayerCameraManager → StartCameraShake(DamageShakeClass, MapRangeClamped(Damage, 0, 100, 0.3, 1.0)). Create CameraShakeClass as BP extending UCameraShakeBase with RotOscillation and LocOscillation settings.

Damage number popup floating text in world space

Pattern: WBP_DamageNumber widget with TextBlock. On damage dealt: CreateWidget(WBP_DamageNumber) → SetText(Damage amount) → AddToViewport. Tick: ProjectWorldLocationToScreen(DamageLocation + UpOffset) → SetPositionInViewport. Timeline Alpha 0→1 over 1s: SetColorAndOpacity(FadeOut) + move up. OnFinished: RemoveFromParent. Alternative: use WidgetComponent in world space.

Melee attack with sphere trace and damage in front of character

Pattern: Attack input → Branch(bCanAttack) → PlayMontage(AttackMontage) → SET bCanAttack=false. AnimNotify during montage: GetActorLocation + GetActorForwardVector*AttackRange → SphereTraceMulti(Loc, Loc+Forward*Range, AttackRadius) → ForEach hit: Branch(HitActor != Self AND not already hit) → ApplyDamage(HitActor, Damage). OnMontageEnded → SET bCanAttack=true.

ApplyRadialDamage — deal area damage in a radius

Event AnyDamage — fires when this actor receives damage

ApplyPointDamage — deal point damage with hit info