anchor.diff:            CreationTimeStampNp = Core.getTimeStamp ()
             DispatcherNp = dispatcher
             Xtension = Xtension.safe }
  -
  -    /// Type tag.
  -    interface SimulantState
   
   /// Hosts the ongoing state of a screen. The end-user of this engine should never touch this
   /// type, and it's public _only_ to make [<CLIMutable>] work.
  
positive.code:           OptOverlayName = optOverlayName
            Xtension = Xtension.safe }
  
      /// Type tag.
      interface SimulantState
  
  /// The game type that hosts the various screens used to navigate through a game.
  and [<StructuralEquality; NoComparison>] Game =
      { GameAddress : Game Address }
  
negative.code:               Xtension = Xtension.safe }
          let quadTree = QuadTree.make Constants.Engine.EntityTreeDepth Constants.Engine.EntityTreeBounds
          { screenState with EntityTreeNp = MutantCache.make Operators.id quadTree }
  
  /// Hosts the ongoing state of a group. The end-user of this engine should never touch this
  /// type, and it's public _only_ to make [<CLIMutable>] work.
  