From 605e6d75af28869821819b4dd1194347ff1135ea Mon Sep 17 00:00:00 2001
From: KUDr <kudr@openttd.org>
Date: Sat, 4 Nov 2006 11:44:19 +0000
Subject: (svn r7059) -Fix [FS#384]: Tunnel YAPF Penalty Incorrect. The penalty
 for upward slope was incorrectly applied on tunnel entrances. (Danny)

---
 yapf/yapf_costbase.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/yapf/yapf_costbase.hpp b/yapf/yapf_costbase.hpp
index 7aa141bc8..27fbe5e67 100644
--- a/yapf/yapf_costbase.hpp
+++ b/yapf/yapf_costbase.hpp
@@ -8,7 +8,7 @@ struct CYapfCostBase {
 
 	FORCEINLINE static bool stSlopeCost(TileIndex tile, Trackdir td)
 	{
-		if (IsDiagonalTrackdir(td)) {
+		if (IsDiagonalTrackdir(td) && !IsTunnelTile(tile)) {
 			uint tile_slope = GetTileSlope(tile, NULL) & 0x0F;
 			if ((c_upwards_slopes[tile_slope] & TrackdirToTrackdirBits(td)) != 0) {
 				return true;
-- 
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