AI MoveTo task — used in Behavior Trees via BT Task Blueprint

For Behavior Trees: use MoveToLocation/MoveToActor in Blackboard-driven tasks. Use GetBlackboardComponent().GetValueAsVector/Actor to read BB keys.

string

string

Less (float) — A < B

IsInAir (IsFalling) — true if character is in the air

Call on the CharacterMovementComponent, not directly on Character. Or use IsMovingOnGround.

SpawnSystemAtLocation — spawn a Niagara/Cascade particle system

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

SpawnEmitterAtLocation — spawn a legacy Cascade particle system

Legacy Cascade system. Prefer Niagara (SpawnSystemAtLocation) for new projects.

MakeColor — construct FLinearColor from R G B A

Actor

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

Skeleton

The bone hierarchy of a Skeletal Mesh. Multiple meshes can share one skeleton to share animations.

Class

A blueprint or C++ type that can be instantiated. Each spawned Actor or component is an instance of a class.