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dubek/mal-logo-step4.png

Last active June 3, 2016 17:35
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Logo mal implementation screenshot - step 4 (WIP)
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tree.mal
(logo-eval "setbackground 7")
(logo-eval "setpencolor 1")
(logo-eval "penup setxy 0 -100 pendown")
(def! fd (fn* [size] (logo-eval (str "fd " size))))
(def! bk (fn* [size] (logo-eval (str "bk " size))))
(def! lt (fn* [size] (logo-eval (str "lt " size))))
(def! rt (fn* [size] (logo-eval (str "rt " size))))
(def! leaf (fn* [size] (do (fd size) (bk size))))
(def! branch (fn* [size] (do (fd size) (draw-tree size) (bk size))))
(def! two-branches (fn* [size] (do (lt 10) (branch size) (rt 40) (branch size) (lt 30))))
(def! draw-tree (fn* [size] (if (< size 5) (leaf size) (two-branches (/ size 2)))))
(draw-tree 250)
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