Gate — open/close/toggle flow gate

Macro. Enter only passes through when gate is open.

Execution flow has a broken / missing wire

Why: An execution pin (the white triangle pins, not data pins) has no wire feeding into or out of it. UE5 can't determine when this node should run. Fix: Click and drag from the white-triangle exec OUTPUT of one node to the white-triangle exec INPUT of the next. Every node in an execution sequence must be chained — orphan nodes are silently skipped (warnings) or crash compile (errors).

string

string

GetVelocity — get actor current velocity

SetPhysicsLinearVelocity — directly set linear velocity of physics body

GetVelocity — get actor current velocity Vector

Pure node. Use VSize(GetVelocity) to get speed as float.

SpawnSystemAtLocation — spawn a Niagara/Cascade particle system

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

SetPhysicsLinearVelocity — directly set linear velocity of a physics body

AddForce — apply continuous force to physics body

Continuous force — apply every frame. Use AddImpulse for one-shot.

Physics Body

A SceneComponent with simulate-physics enabled. Driven by forces, gravity, collisions instead of explicit transforms.