Code - patches-own

[clnl] / src / main / nvm / agent.lisp

diff --git a/src/main/nvm/agent.lisp b/src/main/nvm/agent.lisp
index ee1d97136ad72593b48c51fa2db6e1f47babbb04..8e97ea002c5bdf5ff4c06e12c8cd5a2b04ef9283 100644 (file)
--- a/src/main/nvm/agent.lisp
+++ b/src/main/nvm/agent.lisp
@@ -54,3 +54,13 @@ DESCRIPTION:
  (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)))))