bump version to 0.5.0-rc10.5.0-rc1

* implements objects using reference counts rather than copying
* implements both room-local and global verbs
* refactors the world_* functions into a separate module
* numerous other changes

1 files changed, 7 insertions, 5 deletions

diff --git a/src/obj.h b/src/obj.h
index 240b4a9..ff26399 100644
--- a/src/obj.h
+++ b/src/obj.h
@@ -52,9 +52,8 @@ struct obj_class_t {
      * NULL: can drop
      */
     bool (*hook_drop)(struct object_t*, user_t *user);
-    void* (*hook_clone)(void*); /* clone the user data pointer */
-    void (*hook_destroy)(struct object_t*);
-    const char* (*hook_desc)(struct object_t*, user_t*);
+    void (*hook_destroy)(struct object_t*); // free resources
+    const char* (*hook_desc)(struct object_t*, user_t*); // get object description
 };
 
 struct object_t {
@@ -64,6 +63,8 @@ struct object_t {
 
     bool list;
 
+    unsigned refcount;
+
     void *userdata;
 };
 
@@ -76,10 +77,11 @@ void obj_write(int fd, struct object_t *obj);
 /* deserialize an object */
 struct object_t *obj_read(int fd);
 
-/* make a duplicate of an object
- * used for "moving" an object */
+/* this used to actually make a duplicate of an object...
+ * now it just increments its reference count */
 struct object_t *obj_dup(struct object_t *obj);
 
+/* this only frees the object if its reference count is zero */
 void obj_free(void*);
 
 /* shut down the obj_* module */