Thanks John! Those suggestions are really helpful, the short-
circuiting 'and' is good to remember.
> Might simplify this a bit using assoc-in.
Yeah this works, nice, thanks.
(defn update-tile [[x y] maze value]
(if (tile-in-bounds? [x y] maze)
(assoc-in maze [y x] value)
maze))
Cheers,
James
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