X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibr2c2%2Ftrainrouteplanner.cpp;h=9bed406f102576c893a6f3b890ad031d36329840;hb=19a73af1fb956636cb8b9d563ffb6a42e827a5bf;hp=653cfda6d9f01fc1288722d8f1c6ca33e47634c6;hpb=195ba0e08c597190481ac205afa05243c68fb39b;p=r2c2.git

diff --git a/source/libr2c2/trainrouteplanner.cpp b/source/libr2c2/trainrouteplanner.cpp
index 653cfda..9bed406 100644
--- a/source/libr2c2/trainrouteplanner.cpp
+++ b/source/libr2c2/trainrouteplanner.cpp
@@ -448,6 +448,15 @@ void TrainRoutePlanner::TrainRoutingState::update_estimate()
 	remaining_estimate = distance;
 }
 
+bool TrainRoutePlanner::TrainRoutingState::is_viable() const
+{
+	if(remaining_estimate<0)
+		return false;
+	if(critical && state==BLOCKED)
+		return false;
+	return true;
+}
+
 
 TrainRoutePlanner::RoutingStep::RoutingStep():
 	prev(0)
@@ -546,7 +555,11 @@ bool TrainRoutePlanner::RoutingStep::update_states()
 		{
 			i->blocked_by = get_occupant(*next_track);
 			if(i->blocked_by>=0)
+			{
+				if(i->info->first_noncritical->has_track(*next_track))
+					i->critical = false;
 				i->state = BLOCKED;
+			}
 			else if(i->state==BLOCKED)
 				i->state = MOVING;
 		}
@@ -630,7 +643,7 @@ void TrainRoutePlanner::RoutingStep::update_estimate()
 bool TrainRoutePlanner::RoutingStep::is_viable() const
 {
 	for(vector<TrainRoutingState>::const_iterator i=trains.begin(); i!=trains.end(); ++i)
-		if(i->remaining_estimate<0)
+		if(!i->is_viable())
 			return false;
 
 	for(vector<TrainRoutingState>::const_iterator i=trains.begin(); i!=trains.end(); ++i)