anchor.diff:          | _ -> this
   
   type [<ReferenceEquality; NoComparison>] Round =
  -    { CharacterMoves : Map<CharacterIndex, Move>
  +    { PlayerNavigation : PlayerNavigation
  +      CharacterMoves : Map<CharacterIndex, Move>
         WalkingEnemyGroup : CharacterIndex list
         AttackingEnemyGroup : CharacterIndex list }
   
  
positive.code: open Nu.Declarative
  open InfinityRpg
  
  type [<NoComparison>] Move =
      | Step of Direction
      | Attack of CharacterIndex
  
negative.code:         Round.updateAttackingEnemyGroup List.tail round
      
      static member empty =
          { PlayerNavigation = NoNavigation
            CharacterMoves = Map.empty
            WalkingEnemyGroup = []
            AttackingEnemyGroup = [] }
  
  