private List <int> GetNearbyFloorLocations(FacilityLayer layer, XY location)
{
return(layer.GetNeighbors(location)
.Where(IsFloor)
.Select(x => GetSpaceNumber(x.Location, location))
.OrderBy(x => x).ToList());
}
private List <XY> GetWallLocations(FacilityLayer layer)
{
return(layer.Where(IsFloor)
.SelectMany(y => layer.GetNeighbors(y.Location).Where(x => !IsFloor(x)))
.Select(z => z.Location)
.Distinct().ToList());
}