-(in-package #:cl-nl.nvm)
+(in-package #:clnl-nvm)
; This is the engine. Yay.
(defvar *self* nil)
(defun show (n)
+ "Prints value in the Command Center, preceded by this agent, and followed by a carriage return.
+
+See http://ccl.northwestern.edu/netlogo/docs/dictionary.html#show"
(format t "Showing: ~A~%" (dump-object n)))
(defun create-turtle ()
*turtles*
(list
(make-turtle :who *current-id*
- :color (coerce (+ 5 (* 10 (cl-nl.random:next-int 14))) 'double-float)
- :heading (coerce (cl-nl.random:next-int 360) 'double-float)
+ :color (coerce (+ 5 (* 10 (clnl-random:next-int 14))) 'double-float)
+ :heading (coerce (clnl-random:next-int 360) 'double-float)
:xcor 0d0
:ycor 0d0))))
(incf *current-id*))
-(defun turtles () *turtles*)
+(defun turtles ()
+"Reports the agentset consisting of all turtles.
+
+See http://ccl.northwestern.edu/netlogo/docs/dictionary.html#turtles"
+ *turtles*)
(defun ask (agent-set fn)
+"The specified agent or agentset runs the given commands.
+
+See http://ccl.northwestern.edu/netlogo/docs/dictionary.html#ask"
(let
((iter (shufflerator agent-set)))
(loop for agent = (funcall iter)
(flet
((fetch ()
(let
- ((idx (when (< i (1- (length copy))) (+ i (cl-nl.random:next-int (- (length copy) i))))))
+ ((idx (when (< i (1- (length copy))) (+ i (clnl-random:next-int (- (length copy) i))))))
(when idx (setf agent (nth idx copy)))
(when idx (setf (nth idx copy) (nth i copy)))
(incf i))))
(t (let ((result agent)) (fetch) result)))))))
(defun random-float (n)
- (cl-nl.random:next-double n))
+"If number is positive, returns a random floating point number greater than or equal to 0 but strictly less than number.
+
+If number is negative, returns a random floating point number less than or equal to 0, but strictly greater than number.
+
+If number is zero, the result is always 0.
-(defun fd (n)
+See http://ccl.northwestern.edu/netlogo/docs/dictionary.html#random-float"
+ (clnl-random:next-double n))
+
+(defun forward (n)
+"The turtle moves forward by number steps, one step at a time. (If number is negative, the turtle moves backward.)
+
+See http://ccl.northwestern.edu/netlogo/docs/dictionary.html#forward"
(when (not (turtle-p *self*)) (error "Gotta call fd in turtle scope, dude (~A)" *self*))
(setf (turtle-xcor *self*) (+ (turtle-xcor *self*) (* n (sin (* pi (/ (turtle-heading *self*) 180))))))
(setf (turtle-ycor *self*) (+ (turtle-ycor *self*) (* n (cos (* pi (/ (turtle-heading *self*) 180)))))))
(defun create-turtles (n)
+"Creates number new turtles at the origin. New turtles have random integer
+headings and the color is randomly selected from the 14 primary colors.
+
+If commands are supplied, the new turtles immediately run them.
+
+See http://ccl.northwestern.edu/netlogo/docs/dictionary.html#create-turtles"
(loop for i from 1 to n do (create-turtle)))
(defun create-world ()
(format nil "~{~A~%~}"
(list
(format nil "~S" "RANDOM STATE")
- (format nil "~S" (cl-nl.random:export))
+ (format nil "~S" (clnl-random:export))
""
(format nil "~S" "GLOBALS")
"\"min-pxcor\",\"max-pxcor\",\"min-pycor\",\"max-pycor\",\"perspective\",\"subject\",\"nextIndex\",\"directed-links\",\"ticks\","