From 13ccec924521e10837b801212dd20266827ecbd3 Mon Sep 17 00:00:00 2001
From: glax <johanna@bernloehr.eu>
Date: Tue, 23 Jul 2024 17:08:21 +0200
Subject: [PATCH] Add direction-tag check to GetDirection

---
 OSM_Graph/Way.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/OSM_Graph/Way.cs b/OSM_Graph/Way.cs
index b54e0bf..300c740 100644
--- a/OSM_Graph/Way.cs
+++ b/OSM_Graph/Way.cs
@@ -20,9 +20,10 @@ public class Way(ulong id, Dictionary<string, string> tags, List<ulong> nodeIds)
                 "-1" => WayDirection.Backwards,
                 _ => WayDirection.Both
             };
-        HighwayType[] impliedTypes = [HighwayType.motorway, HighwayType.motorway_link, HighwayType.primary, HighwayType.primary_link];
+        bool direction = !Tags.TryGetValue("direction", out string? directionStr) || directionStr == "forwards";
+        HighwayType[] impliedTypes = [HighwayType.motorway, HighwayType.motorway_link, HighwayType.primary_link];
         if (impliedTypes.Contains(GetHighwayType()))
-            return WayDirection.Forwards;
+            return direction ? WayDirection.Forwards : WayDirection.Backwards;
         return WayDirection.Both;
     }