@startuml
class SnapSystem {
    - {static} instance : SnapSystem
    + {static} getInstance() : SnapSystem
    - socketDetectionRadius : float = 0.5f
    - <<readonly>> nearbySockets : List<SocketPoint>
    - <<readonly>> visitedRoots : HashSet<Transform>
    - closestSocket : SocketPoint
    - Awake() : void
    + UpdateSockets(detectionPoint:Vector3, ghostRoot:Transform) : void
    + ClearHighlights() : void
    + Clear() : void
    + GetNearbySockets() : List<SocketPoint>
    + GetClosestSocket() : SocketPoint
    - {static} FindClosest(position:Vector3, sockets:List<SocketPoint>) : SocketPoint
}
MonoBehaviour <|-- SnapSystem
@enduml