diff options
| -rw-r--r-- | yapf/yapf_costbase.hpp | 2 |
1 files changed, 1 insertions, 1 deletions
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; |