Async Load Asset — load a soft reference asynchronously without blocking

Bind to 'Completed' delegate to handle loaded asset. Cast the loaded Object to your type. Use Soft Object References (not hard refs) for large assets to avoid loading everything upfront.

Delay — wait for Duration seconds then continue

Exec output is 'Completed' (NOT 'then'). Does not block — execution continues after Delay node fires.

Server RPC — call a function on the server from a client

Create a Custom Event → check 'Replicates' in Details → set to 'Run On Server', 'Reliable'. Call from client → executes on server. Reliable = guaranteed delivery (use for important events). Unreliable = may drop (use for frequent updates like position).

Delay — latent delay node pauses execution for Duration seconds

UKismetSystemLibrary::Delay. Latent node — only works in Event Graph, not functions. Output exec displays as Completed.

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.

MultiGate — distribute execution across multiple outputs

Client RPC — call a function on a specific client from the server

Custom Event → Replicates = 'Run On Owning Client'. Only executes on the client that owns this actor. Use for player-specific UI updates, messages, sounds.

EventAnyDamage — receive any type of damage

EnhancedInputAction — Enhanced Input system action event

K2Node_EnhancedInputAction. ActionValue type depends on InputAction (Bool, Float, Axis2D, Axis3D). Triggers: Started, Ongoing, Triggered, Completed, Canceled.

AddImpulse — apply instant impulse to physics body

One-shot force. bVelChange=true treats Impulse as velocity change.