Avoid some useless file accesses

[flightgear.git] / src / Airports / groundnetwork.hxx

diff --git a/src/Airports/groundnetwork.hxx b/src/Airports/groundnetwork.hxx
index 87dafe0a01d44f65dc9517aa2bf754b1b529156c..3de47c2bafb2b1cfc4f7929ba7d616356a315a16 100644 (file)
--- a/src/Airports/groundnetwork.hxx
+++ b/src/Airports/groundnetwork.hxx
@@ -212,6 +212,8 @@ public:
   
   void first() { currNode = nodes.begin(); currRoute = routes.begin(); };
   int size() { return nodes.size(); };
+  int nodesLeft() { return nodes.end() - currNode; };
+
 //  int getDepth() { return depth; };
 };