Code smells

PathFinding/MoveSet.cs

@@ -0,0 +1,23 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+
+namespace PathFinding
+{
+  public class MoveSet
+  {
+    private readonly IPlanarElement element;
+    private readonly ICollection<Move> moves;
+    private readonly ICollection<Move> upsidedownMoves;
+
+    public MoveSet(IPlanarElement element, ICollection<Move> moves)
+    {
+      this.element = element;
+      this.moves = moves;
+      upsidedownMoves = moves.Select(_ => new Move(Vector2.Negate(_.Direction), _.Distance)).ToList();
+    }
+
+    public ICollection<Move> GetMoves() => element.IsUpsideDown ? upsidedownMoves : moves;
+
+  }
+}