1 (in-package #:clnl-nvm)
3 (defvar *current-id* 0)
9 (defvar *dimensions* nil)
10 (defvar *globals* nil)
11 (defvar *topology* :torus)
15 (define-condition stop nil nil)
17 (defmacro with-stop-handler (&rest forms)
18 "MACRO WITH-STOP-HANDLER &rest FORMS => HANDLED-FORM
22 FORMS: body to be handled
23 HANDLED-FORM: body with handling
27 WITH-STOP-HANDLER is a convenience macro to handle when
28 programs issue a stop condition. When one does, a simple
30 `(handler-case (progn ,@forms) (stop (s) (declare (ignore s)) :stop)))
32 (defstruct turtle who color heading xcor ycor (label "") (label-color 9.9d0) (size 1d0) shape)
33 (defstruct patch color xcor ycor)
35 (defun agentset-list (agentset)
37 ((eql agentset :turtles) *turtles*)
38 ((eql agentset :patches) *patches*)
39 ((and (listp agentset) (eql :agentset (car agentset))) (cddr agentset))
40 (t (error "Doesn't seem to be an agentset: ~A" agentset))))
42 (defun agentset-breed (agentset)
44 ((eql agentset :turtles) :turtles)
45 ((eql agentset :patches) :patches)
46 ((and (listp agentset) (eql :agentset (car agentset))) (second agentset))
47 (t (error "Doesn't seem to be an agentset: ~A" agentset))))
49 (defun list->agentset (list breed)
50 (append (list :agentset breed) list))
56 (and (listp o) (eql :agentset (car o)))))
59 (or (turtle-p o) (patch-p o)))
61 (defun breed-p (breed)
62 (find breed *breeds* :key #'car))
64 (defun breed-default-shape (breed)
65 (second (find breed *breeds* :key #'car)))
67 (defsetf breed-default-shape (breed) (shape)
68 `(setf (second (find ,breed *breeds* :key #'car)) ,shape))