ActorHasTag — check if actor has a specific tag

Pure node. Tags are added in the Actor Details panel → Tags array. Case-sensitive.

GetOwner — get the actor that owns this actor

ApplyDamage — apply damage to an actor

Triggers EventAnyDamage and EventPointDamage on the target actor.

AddTag — add a tag to this actor

ActorHasTag — check if actor has a specific tag

Actor

Anything that can be placed in a Level. Has a Transform. Player characters, props, lights, and triggers all inherit from Actor.

Pawn

An Actor that can be possessed by a Controller. Use for the player's avatar and AI agents.

GetInstigator — get the instigator pawn for this actor

EventHit — fires when actor is hit by or hits something

Requires Simulation Generates Hit Events on physics body.

Projectile actor that moves forward and deals damage on hit

Pattern: BP_Projectile with SphereCollision(root), StaticMesh, ProjectileMovementComponent(InitialSpeed=3000, MaxSpeed=3000, bRotationFollowsVelocity=true). OnComponentHit → ApplyDamage(OtherActor, Damage, GetInstigatorController, Self) → SpawnEmitterAtLocation(ImpactPoint) → DestroyActor. Spawner: SpawnActorFromClass(BP_Projectile, MuzzleLocation, MuzzleRotation).