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-rw-r--r--src/yapf/yapf_costrail.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/yapf/yapf_costrail.hpp b/src/yapf/yapf_costrail.hpp
index 81ef6a82a..a622d2671 100644
--- a/src/yapf/yapf_costrail.hpp
+++ b/src/yapf/yapf_costrail.hpp
@@ -111,7 +111,7 @@ public:
FORCEINLINE int SwitchCost(TileIndex tile1, TileIndex tile2, DiagDirection exitdir)
{
- if (IsTileType(tile1, MP_RAILWAY) && IsTileType(tile2, MP_RAILWAY)) {
+ if (IsTileType(tile1, MP_RAILWAY) && IsTileType(tile2, MP_RAILWAY) && IsPlainRailTile(tile1) && IsPlainRailTile(tile2)) {
bool t1 = KillFirstBit(GetTrackBits(tile1) & DiagdirReachesTracks(ReverseDiagDir(exitdir))) != TRACK_BIT_NONE;
bool t2 = KillFirstBit(GetTrackBits(tile2) & DiagdirReachesTracks(exitdir)) != TRACK_BIT_NONE;
if (t1 && t2) return Yapf().PfGetSettings().rail_doubleslip_penalty;