Hexagon Spiral Coordinates (redblobgames.com)
My guide to hexagonal grids[1] is one of the most popular pages on my site. I keep a list of things I want to add to that page[2]. One of them has been spiral coordinate systems. I had thought I would wait until I actually use them in a real project, so that I would have real world experience with the thing I’m writing about. I’m afraid of writing about things I’m unsure about, or information that’s incomplete.