string

string

PlayMontage — play an AnimMontage on a SkeletalMeshComponent

Call on the SkeletalMeshComponent. Get it via GetMesh() on Character. Returns montage length. Exec out is 'then'.

Pickup and collectible system with overlap trigger

Pattern: Pickup actor with SphereCollision(overlap), StaticMesh visual. OnComponentBeginOverlap → CastTo PlayerCharacter → Success: call AddScore/AddItem interface on player → PlaySoundAtLocation → SpawnEmitterAtLocation → DestroyActor(self). Set collision to OverlapOnlyPawn for performance.

Set (Collection)

An unordered collection with unique elements. (The Set node for writing variables is a separate concept — see the entry for 'Set'.)

Less (float) — A < B

SpawnSystemAtLocation — spawn a Niagara/Cascade particle system

UNiagaraFunctionLibrary::SpawnSystemAtLocation. bAutoDestroy=true for fire-and-forget. Use SpawnSystemAttached to attach to a component.

Cross Product — cross product of two Vectors

RandomBoolWithWeight — random bool with probability weight

Weight 0.0=always false, 1.0=always true, 0.5=50%.

BreakHitResult — decompose hit result structure into components

UGameplayStatics::BreakHitResult. Most important outputs: bBlockingHit, ImpactPoint, ImpactNormal, HitActor, HitComponent.

Blueprint

A visual scripting asset (.uasset) that defines runtime behavior without C++. Compiles to bytecode the engine executes.