Index: class.doc
==================================================================
--- class.doc
+++ class.doc
@@ -554,12 +554,15 @@
   OSCLOOP = 10
 
 Standard messages:
   ARRIVED
   BEGIN_TURN
+  BLOCKED
   COLLIDE
   COLLIDEBY
+  COLLIDING
+  CONFLICT
   CREATE
   CREATED
   DEPARTED
   DESTROY
   DESTROYED