See http://ccl.northwestern.edu/netlogo/docs/dictionary.html#show"
(format t "Showing: ~A~%" (dump-object value)))
+(defun lookup-color (color)
+ "LOOKUP-COLOR COLOR => COLOR-NUMBER
+
+ARGUMENTS AND VALUES:
+
+ COLOR: a symbol representing a color
+ COLOR-NUMBER: the NetLogo color integer
+
+DESCRIPTION:
+
+ Returns the number used to represent colors in NetLogo.
+
+ See http://ccl.northwestern.edu/netlogo/docs/dictionary.html#Constants"
+ (case color
+ (:black 0d0)
+ (:gray 5d0)
+ (:white 9.9d0)
+ (:red 15d0)
+ (:orange 25d0)
+ (:brown 35d0)
+ (:yellow 45d0)
+ (:green 55d0)
+ (:lime 65d0)
+ (:turquoise 75d0)
+ (:cyan 85d0)
+ (:sky 95d0)
+ (:blue 105d0)
+ (:violet 115d0)
+ (:magenta 125d0)
+ (:pink 135d0)))
+
(defun create-turtle ()
(setf
*turtles*