Commit a0524a09 authored by Hugo Hörnquist's avatar Hugo Hörnquist
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parent 2820bcc3
......@@ -132,6 +132,9 @@
(decimals x))
;; distance from x wall, horizontal wall, wall paralell with the x axis
;; returns how far you would have to travel in direction a before you
;; hit a wall.
(define (y-from-edge y a)
(mod (* (sgn (sin a))
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