>>48950515you are at tile 0, every tile you move away towayds the outside of these ring is 1. So starting at 0 with you, move one towards the direction you need to move is 1, for instance, one to the lefte from your starting position will bring you to one, move left one more time you will be in ring 2, then 3, then 4, same goes for the other 3 directions and where ever those positions connect makes the corner of the ring like if you g 3 to the left and 3 up you will still be in ring but at the top left corner of it. I'm not really sure how else I can explain this