void updateLists(BuildingFoundation newFoundation, Edge curEdge, Junction curJunction, List <BuildingFoundation> toUpdate, bool addEdges, bool addFreeCorners) { toUpdate.Add(newFoundation); if (addFreeCorners) { freeCorners.AddRange(newFoundation.corners); } allCorners.AddRange(newFoundation.corners); List <Edge> newEdges = newFoundation.getEdges(); usedEdges.Add(newEdges [3]); if (addEdges) { newEdges.RemoveAt(3); freeEdges.AddRange(newEdges); } freeEdges.Remove(curEdge); usedEdges.Add(curEdge); curJunction.adjacentFoundations [0] = curEdge.foundation; curJunction.adjacentFoundations [1] = newFoundation; junctions.Add(curJunction); }