From ad1e7c1da8414277b389f257f2ef3595f2f8d89a Mon Sep 17 00:00:00 2001
From: tron <tron@openttd.org>
Date: Thu, 23 Feb 2006 07:31:36 +0000
Subject: (svn r3656) Simplify the overly complicated check for road pieces
 under a bridge

---
 road_cmd.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/road_cmd.c b/road_cmd.c
index 5d490a040..a8fcda2e1 100644
--- a/road_cmd.c
+++ b/road_cmd.c
@@ -48,10 +48,10 @@ static bool HasTileRoadAt(TileIndex tile, int i)
 			(~(_m[tile].m5 - 0x43) & 3) == i;
 
 	case MP_TUNNELBRIDGE:
-		mask = GetRoadBitsByTile(tile);
-		b = 10; if (mask & 1) break;
-		b = 5;  if (mask & 2) break;
-		return false;
+		// bail out, if not a bridge middle part with road underneath
+		if ((_m[tile].m5 & 0xF8) != 0xE8) return false;
+		// road direction perpendicular to bridge
+		b = (_m[tile].m5 & 0x01) ? 10 : 5;
 
 	default:
 		return false;
-- 
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