- Added a NODELAY state flag. This is only valid for a state immediately following a Spawn label.

When set, the actor will run this state during its first tick. This means Spawn
  states may now run an action function if you set this flag. Note that this action function
  is executed during the actor's first tick, which is not the same as when it is spawned.

SVN r4240 (trunk)

src/thingdef/thingdef_states.cpp

@@ -275,6 +275,18 @@ do_stop:
 					state.Fast = true;
 					continue;
 				}
+				if (sc.Compare("NODELAY"))
+				{
+					if (bag.statedef.GetStateLabelIndex(NAME_Spawn) == bag.statedef.GetStateCount())
+					{
+						state.NoDelay = true;
+					}
+					else
+					{
+						sc.ScriptMessage("NODELAY may only be used immediately after Spawn:");
+					}
+					continue;
+				}
 				if (sc.Compare("OFFSET"))
 				{
 					// specify a weapon offset
@@ -338,8 +350,7 @@ do_stop:
 						int paramindex = PrepareStateParameters(&state, numparams, bag.Info->Class);
 						int paramstart = paramindex;
 						bool varargs = params[numparams - 1] == '+';
-						int varargcount=0;
-
+						int varargcount = 0;
 
 						if (varargs)
 						{