added dynamic linking approach to exits. live hacking rooms works! :D :D

[mudsync.git] / mudsync / gameobj.scm

diff --git a/mudsync/gameobj.scm b/mudsync/gameobj.scm
index c34e89bb5540a90308686c64ec7e3fc6caf58b98..5f702efce85937c9d92ac4297353379364b5dd83 100644 (file)
--- a/mudsync/gameobj.scm
+++ b/mudsync/gameobj.scm
@@ -33,7 +33,9 @@
 
             gameobj-occupants
             gameobj-actions
-            gameobj-self-destruct))
+            gameobj-self-destruct
+
+            dyn-ref))
 
 ;;; Gameobj
 ;;; =======
@@ -55,7 +57,8 @@
    (goes-by (wrap-apply gameobj-act-goes-by))
    (visible-name (wrap-apply gameobj-visible-name))
    (self-destruct (wrap-apply gameobj-act-self-destruct))
-   (tell (wrap-apply gameobj-tell-no-op))))
+   (tell (wrap-apply gameobj-tell-no-op))
+   (assist-replace (wrap-apply gameobj-act-assist-replace))))
 
 ;;; *all* game components that talk to players should somehow
 ;;; derive from this class.
@@ -109,11 +112,38 @@
                    #:val (slot-ref actor slot))))
 
 
+(define (gameobj-replace-step-occupants actor replace-reply)
+  (define occupants
+    (message-ref replace-reply 'occupants #f))
+  ;; Snarf all the occupants!
+  (display "replacing occupant\n")
+  (when occupants
+    (for-each
+     (lambda (occupant)
+       (<-wait actor occupant 'set-loc!
+               #:loc (actor-id actor)))
+     occupants)))
+
+(define gameobj-replace-steps*
+  (list gameobj-replace-step-occupants))
+
+(define (run-replacement actor message replace-steps)
+  (define replaces (pk 'replace (message-ref message 'replace #f)))
+  (when replaces
+    (let ((replace-reply
+           (pk 'replace-reply (<-wait actor replaces 'assist-replace))))
+      (for-each
+       (lambda (replace-step)
+         (replace-step actor replace-reply))
+       replace-steps))))
+
 ;; @@: This could be kind of a messy way of doing gameobj-init
 ;;   stuff.  If only we had generic methods :(
 (define-mhandler (gameobj-init actor message)
-  "Your most basic game object init procedure.  Does nothing."
-  #f)
+  "Your most basic game object init procedure.
+Assists in its replacement of occupants if necessary and nothing else."
+  (display "gameobj init!\n")
+  (run-replacement actor message gameobj-replace-steps*))
 
 (define (gameobj-goes-by gameobj)
   "Find the name we go by.  Defaults to #:name if nothing else provided."
@@ -263,3 +293,38 @@ By default, this is whether or not the generally-visible flag is set."
 ;; Unless an actor has a tell message, we just ignore it
 (define gameobj-tell-no-op
   (const 'no-op))
+
+(define (gameobj-replace-data-occupants actor)
+  "The general purpose list of replacement data"
+  (list #:occupants (hash-map->list (lambda (occupant _) occupant)
+                                    (slot-ref actor 'occupants))))
+
+(define (gameobj-replace-data* actor)
+  ;; For now, just call gameobj-replace-data-occupants.
+  ;; But there may be more in the future!
+  (gameobj-replace-data-occupants actor))
+
+;; So sad that objects must assist in their replacement ;_;
+;; But that's life in a live hacked game!
+(define (gameobj-act-assist-replace actor message)
+  "Vanilla method for assisting in self-replacement for live hacking"
+  (apply <-reply actor message
+         (gameobj-replace-data* actor)))
+
+\f
+;;; Utilities every gameobj has
+;;; ---------------------------
+
+(define (dyn-ref gameobj special-symbol)
+  "Dynamically look up a special object from the gm"
+  (match special-symbol
+    ;; if it's a symbol, look it up dynamically
+    ((? symbol? _)
+     (message-ref
+      (<-wait gameobj (slot-ref gameobj 'gm) 'lookup-special
+              #:symbol special-symbol)
+      'val))
+    ;; if it's false, return nothing
+    ((#f #f))
+    ;; otherwise it's probably an address, return it as-is
+    (_ special-symbol)))