I mean the literal entities. A north wall can become a south wall just by simply moving it down an index. Since with just the two they’re all facing the same direction, I can simply add them to an array, and when I generate clearance if I hit a tile with a wall, I can treat it just like one of the full obstructed tiles in my first grid image, since I know that the top or left is what’s blocked meaning there isn’t clearance, and not the bottom or right which would mean that tile did have clearance. If that makes sense.
PS got everything working now, I might have some fun stuff to show you in a month or so 