@startuml
class GhostManager {
    - {static} instance : GhostManager
    + {static} getInstance() : GhostManager
    - selectedBlockData : BlockData
    - ghostObject : GameObject
    - canPlace : bool = false
    - onClearEvent : UnityEvent
    - alignToSurfaceNormal : bool = true
    - snapRotation : bool = false
    - followSpeed : float = 20f
    - heightOffset : float = 0f
    - validTint : Color
    - invalidTint : Color
    - attachPoint : Transform
    - validator : IValidator
    - isValidPlacement : bool = true
    - currentSurfaceNormal : Vector3
    - currentSurfacePoint : Vector3
    - rotationAxis : Vector3
    - ghostRenderers : Renderer[]
    - container : SocketContainer
    - jointBlock : JointBlock
    - block : Block
    - isDragged : bool = false
    - isJustPlaced : bool = false
    - editingSourceObject : GameObject
    - editingOriginalPos : Vector3
    - editingOriginalRot : Quaternion
    - isEditingExisting : bool
    - currentStrategy : IGhostMovementStrategy
    + SetMovementStrategy(strategy:IGhostMovementStrategy) : void
    - rayInteractor : RayInteractor
    - snappingSystem : SnapSystem
    - environment : Environment
    - commandHandler : CommandHandler
    - socketIterator : SocketIterator
    - inputProvider : BaseInputProvider
    - Awake() : void
    - Start() : void
    - Update() : void
    + GhostTransform : Transform <<get>>
    + setDrag(drag:bool) : void
    - OnPlace() : void
    + ForcePlace() : void
    - resetPlaced() : IEnumerator
    - OnPlaceWithDragging() : void
    - PlaceBlock() : void
    - CommitExistingBlock() : void
    + SetupBlock(blockData:BlockData) : void
    + SetupExistingBlock(sourceObject:GameObject, strategy:IGhostMovementStrategy) : void
    - InitialiseGhostFromObject(ghost:GameObject) : void
    + HasActiveGhost() : bool
    + isGhost(obj:GameObject) : bool
    + ClearGhost() : void
    + ClearGhostData() : void
    - UpdateSurfaceTracking() : void
    - UpdateVisualFeedback(isValid:bool) : void
    - {static} SetLayerRecursively(obj:GameObject, layer:int, Method:Func<Transform, bool>) : void
    - {static} SetLayerRecursively(obj:GameObject, layer:int) : void
    - {static} RestoreMaterialAlpha(obj:GameObject, Method:Func<GameObject, bool>) : void
    - {static} RestoreMaterialAlpha(obj:GameObject) : void
    - {static} RestoreMaterialColor(obj:GameObject, Method:Func<GameObject, bool>) : void
    - {static} RestoreMaterialColor(obj:GameObject) : void
    + onClearAddListener(action:UnityAction) : void
    + setupBlock(blockData:BlockData) : void
    + clearGhost() : void
    + clearGhostData() : void
    - afterCreation(blockObj:GameObject) : void
}
MonoBehaviour <|-- GhostManager
@enduml