X-Git-Url: https://code.consxy.com/gitweb/gitweb.cgi?p=clnl;a=blobdiff_plain;f=src%2Fmain%2Fnvm.lisp;h=79b0b36be2fa3d463e95fd02c470a7f1a2de30a0;hp=3ea76d9309c681662c6f35e686348dc8212fc812;hb=d429346c4e41599eaae8de2f4baa9c1b8a81aea6;hpb=d0e9e5aea40d947370e90276fe12fbaa671c8992

diff --git a/src/main/nvm.lisp b/src/main/nvm.lisp
index 3ea76d9..79b0b36 100644
--- a/src/main/nvm.lisp
+++ b/src/main/nvm.lisp
@@ -2,8 +2,82 @@
 
 ; This is the engine.  Yay.
 
+(defvar *current-id* 0)
+
+(defstruct turtle who color heading xcor ycor)
+(defvar *turtles* nil)
+(defvar *myself* nil)
+(defvar *self* nil)
+
+(defun show (n)
+ (format t "Showing: ~A~%" (dump-object n)))
+
+(defun create-turtle ()
+ (setf
+  *turtles*
+  (nconc
+   *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)
+                 :xcor 0d0
+                 :ycor 0d0))))
+ (incf *current-id*))
+
+(defun turtles () *turtles*)
+
+(defun ask (agent-set fn)
+ (let
+  ((iter (shufflerator agent-set)))
+  (loop for agent = (funcall iter)
+        while agent
+        do (let ((*myself* *self*) (*self* agent)) (funcall fn)))))
+
+(defun shufflerator (agent-set)
+ (let
+  ((copy (copy-list agent-set))
+   (i 0)
+   (agent nil))
+  (flet
+   ((fetch ()
+     (let
+      ((idx (when (< i (1- (length copy))) (+ i (cl-nl.random:next-int (- (length copy) i))))))
+      (when idx (setf agent (nth idx copy)))
+      (when idx (setf (nth idx copy) (nth i copy)))
+      (incf i))))
+   (fetch) ; we pre-fetch because netlogo does, rng sync hype!
+   (lambda ()
+    (cond
+     ((> i (length copy)) nil)
+     ((= i (length copy)) (incf i) (car (last copy)))
+     (t (let ((result agent)) (fetch) result)))))))
+
+(defun random-float (n)
+ (cl-nl.random:next-double n))
+
+(defun fd (n)
+ (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)
- (format t "HELLO WORLD ~A~%" n))
+ (loop for i from 1 to n do (create-turtle)))
+
+(defun create-world ()
+ (setf *turtles* nil)
+ (setf *current-id* 0))
+
+; These match netlogo's dump
+(defgeneric dump-object (o))
+(defmethod dump-object ((n double-float))
+ (multiple-value-bind (int rem) (floor n)
+  (if (eql 0d0 rem)
+      (format nil "~A" int)
+      (let
+       ((output (format nil "~D" n)))
+       (cl-ppcre:regex-replace "d-" (cl-ppcre:regex-replace "d0" output "") "E-"))))) ; Someday we'll have d<posint>, but this is not that day!
+(defmethod dump-object ((o string)) o)
 
 (defun export-world ()
  (format nil "~{~A~%~}"
@@ -13,11 +87,22 @@
    ""
    (format nil "~S" "GLOBALS")
    "\"min-pxcor\",\"max-pxcor\",\"min-pycor\",\"max-pycor\",\"perspective\",\"subject\",\"nextIndex\",\"directed-links\",\"ticks\","
-   "\"-1\",\"1\",\"-1\",\"1\",\"0\",\"nobody\",\"0\",\"\"\"NEITHER\"\"\",\"-1\""
+   (format nil "\"-1\",\"1\",\"-1\",\"1\",\"0\",\"nobody\",\"~A\",\"\"\"NEITHER\"\"\",\"-1\"" *current-id*)
    ""
    (format nil "~S" "TURTLES")
    "\"who\",\"color\",\"heading\",\"xcor\",\"ycor\",\"shape\",\"label\",\"label-color\",\"breed\",\"hidden?\",\"size\",\"pen-size\",\"pen-mode\""
-   ""
+   (format nil "~{~A~%~}"
+    (mapcar
+     (lambda (turtle)
+      (format nil
+       "\"~A\",\"~A\",\"~A\",\"~A\",\"~A\",\"\"\"default\"\"\",\"\"\"\"\"\",\"9.9\",\"{all-turtles}\",\"false\",\"1\",\"1\",\"\"\"up\"\"\""
+       (turtle-who turtle)
+       (dump-object (turtle-color turtle))
+       (dump-object (turtle-heading turtle))
+       (dump-object (turtle-xcor turtle))
+       (dump-object (turtle-ycor turtle))
+       ))
+     *turtles*))
    (format nil "~S" "PATCHES")
    "\"pxcor\",\"pycor\",\"pcolor\",\"plabel\",\"plabel-color\""
    "\"-1\",\"1\",\"0\",\"\"\"\"\"\",\"9.9\""