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[mudsync.git] / mudsync / gameobj.scm

diff --git a/mudsync/gameobj.scm b/mudsync/gameobj.scm
index 1d120072380ad17d49b276c016beba8a729ace47..3e23ae6ff7b7054e7fe3fe26e614588b724f1b2f 100644 (file)
--- a/mudsync/gameobj.scm
+++ b/mudsync/gameobj.scm
@@ -52,7 +52,8 @@
    (set-loc! (wrap-apply gameobj-set-loc!))
    (get-name (wrap-apply gameobj-get-name))
    (get-desc (wrap-apply gameobj-get-desc))
-   (goes-by (wrap-apply gameobj-goes-by))))
+   (goes-by (wrap-apply gameobj-act-goes-by))
+   (visible-name (wrap-apply gameobj-visible-name))))
 
 ;;; *all* game components that talk to players should somehow
 ;;; derive from this class.
@@ -76,7 +77,7 @@
   (goes-by #:init-keyword #:goes-by
            #:init-value #f)
 
-  (desc #:init-value ""
+  (desc #:init-value #f
         #:init-keyword #:desc)
 
   ;; how to print our name
@@ -91,7 +92,14 @@
   (container-commands #:init-value '())
   (message-handler
    #:init-value
-   (simple-dispatcher gameobj-actions)))
+   (simple-dispatcher gameobj-actions))
+
+  ;; Most objects are generally visible by default
+  (generally-visible #:init-value #t)
+  ;; @@: Would be preferable to be using generic methods for this...
+  ;;   Hopefully we can port this to Guile 2.2 soon...
+  (visible-to-player?
+   #:init-value (wrap-apply gameobj-visible-to-player?)))
 
 
 ;;; gameobj message handlers
@@ -119,6 +127,11 @@
            (list name)))
         (else '())))
 
+(define (gameobj-act-goes-by actor message)
+  "Reply to a message requesting what we go by."
+  (<-reply actor message
+           #:goes-by (gameobj-goes-by actor)))
+
 (define (val-or-run val-or-proc)
   "Evaluate if a procedure, or just return otherwise"
   (if (procedure? val-or-proc)
@@ -186,3 +199,25 @@
 (define (gameobj-simple-name-f gameobj)
   "Simplest version: return ourselves for our name."
   (gameobj-name gameobj))
+
+(define (gameobj-visible-to-player? gameobj whos-looking)
+  "Check to see whether we're visible to the player or not.
+By default, this is whether or not the generally-visible flag is set."
+  (slot-ref gameobj 'generally-visible))
+
+(define-mhandler (gameobj-visible-name actor message whos-looking)
+  ;; Are we visible?
+  (define we-are-visible
+    ((slot-ref actor 'visible-to-player?) actor whos-looking))
+
+  (define name-to-return
+    (if we-are-visible
+        ;; Return our name
+        (match (slot-ref actor 'name)
+          ((? procedure? name-proc)
+           (name-proc actor whos-looking))
+          ((? string? name)
+           name)
+          (#f #f))
+        #f))
+  (<-reply actor message #:text name-to-return))