+++ /dev/null
-(in-package #:clnl-nvm)
-
-(defun agent-value (var &optional (agent *self*))
- "AGENT-VALUE VAR &optional AGENT => RESULT
-
-ARGUMENTS AND VALUES:
-
- VAR: A variable name
- AGENT: an agent, defaulting to *self*
- RESULT: the value of VAR
-
-DESCRIPTION:
-
- AGENT-VALUE is the general agent variable access function. For many
- NetLogo reporters, the compilation results is AGENT-VALUE. The list of
- valid values are any builtin variable in the NetLogo dictionary, as well
- as any *-own variable.
-
- See http://ccl.northwestern.edu/netlogo/docs/dictionary.html for builtins"
- (agent-value-inner agent (intern (string-upcase var) :keyword)))
-
-(defsetf agent-value (var &optional (agent '*self*)) (new-value)
- `(set-agent-value-inner ,agent ,var ,new-value))
-
-(defgeneric set-agent-value-inner (agent var new-value))
-(defgeneric agent-value-inner (agent var))
-
-(defmacro defagent-value (type symb &optional accessor)
- (let
- ((accessor (or accessor (intern (format nil "~A-~A" type symb))))
- (agent (gensym))
- (var (gensym))
- (new-val (gensym)))
- `(progn
- (defmethod agent-value-inner ((,agent ,type) (,var (eql ,symb))) (,accessor ,agent))
- (defmethod set-agent-value-inner ((,agent ,type) (,var (eql ,symb)) ,new-val) (setf (,accessor ,agent) ,new-val)))))
-
-; Don't want the setter for :who
-(defmethod agent-value-inner ((turtle turtle) (var (eql :who))) (turtle-who turtle))
-
-(defmethod agent-value-inner ((turtle turtle) (var (eql :pcolor)))
- (patch-color (patch-at (turtle-xcor turtle) (turtle-ycor turtle))))
-
-(defmethod set-agent-value-inner ((turtle turtle) (var (eql :pcolor)) new-val)
- (setf (patch-color (patch-at (turtle-xcor turtle) (turtle-ycor turtle))) new-val))
-
-(defagent-value patch :pcolor patch-color)
-
-(defagent-value turtle :color)
-(defagent-value turtle :label)
-(defagent-value turtle :label-color)
-(defagent-value turtle :size)
-
-(defmethod agent-value-inner ((turtle turtle) var)
- (when (not (find var *turtles-own-vars*)) (error "~S is not a turtle variable" var))
- (or (getf (turtle-own-vars turtle) var) 0d0))
-
-(defmethod set-agent-value-inner ((turtle turtle) var new-val)
- (when (not (find var *turtles-own-vars*)) (error "~S is not a turtle variable" var))
- (if (getf (turtle-own-vars turtle) var)
- (setf (getf (turtle-own-vars turtle) var) new-val)
- (setf (turtle-own-vars turtle) (append (list var new-val) (turtle-own-vars turtle)))))
-
-(defmethod agent-value-inner ((patch patch) var)
- (when (not (find var *patches-own-vars*)) (error "~S is not a patch variable" var))
- (or (getf (patch-own-vars patch) var) 0d0))
-
-(defmethod set-agent-value-inner ((patch patch) var new-val)
- (when (not (find var *patches-own-vars*)) (error "~S is not a patch variable" var))
- (if (getf (patch-own-vars patch) var)
- (setf (getf (patch-own-vars patch) var) new-val)
- (setf (patch-own-vars patch) (append (list var new-val) (patch-own-vars patch)))))