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-rw-r--r--src/rail_map.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/rail_map.h b/src/rail_map.h
index 2d25feb5a..8e47ea5f5 100644
--- a/src/rail_map.h
+++ b/src/rail_map.h
@@ -368,6 +368,12 @@ static inline bool IsPresignalExit(TileIndex t, Track track)
return GetSignalType(t, track) == SIGTYPE_EXIT || GetSignalType(t, track) == SIGTYPE_COMBO;
}
+/** One-way signals can't be passed the 'wrong' way. */
+static inline bool IsOnewaySignal(TileIndex t, Track track)
+{
+ return GetSignalType(t, track) != SIGTYPE_PBS;
+}
+
static inline void CycleSignalSide(TileIndex t, Track track)
{
byte sig;