(defvar *turtles* nil)
(defvar *turtles-own-vars* nil)
+(defvar *patches-own-vars* nil)
(defvar *patches* nil)
(defvar *myself* nil)
(defvar *self* nil)
`(handler-case (progn ,@forms) (stop (s) (declare (ignore s)) :stop)))
(defstruct turtle who color heading xcor ycor (label "") (label-color 9.9d0) (size 1d0) shape own-vars)
-(defstruct patch color xcor ycor)
+(defstruct patch color xcor ycor own-vars)
(defun agentset-list (agentset)
(cond