--- a/src/Network/Message.hh	Mon Jan 26 23:39:08 2009 +0200
+++ b/src/Network/Message.hh	Tue Jan 27 00:02:34 2009 +0200
@@ -19,6 +19,13 @@
          * Create a message of the given type to be sent on the given object
          */
         NetworkMessage (NetworkObject &obj, NetworkMessageID msg_id);
+
+        /**
+         * Write the given Object's NetworkObjectID (or 0, if the obj is NULL) to this p acket
+         *
+         * @param obj the NetworkObject* whose NetworkObjectID to write to the packet, or NULL to write zero
+         */
+        void write_object (const NetworkObject *obj);
 };
 
 #endif /* NETWORK_MESSAGE_HH */