Add fast path to catenary drawing in MaskWireBits

2021-02-27 19:24:22 +00:00
parent d58989f552
commit 2cbb42f9a9
1 changed files with 2 additions and 0 deletions
--- a/src/elrail.cpp
+++ b/src/elrail.cpp
@@ -155,6 +155,8 @@ static DualTrackBits GetRailTrackBitsUniversal(TileIndex t, byte *override)
 */
 static TrackBits MaskWireBits(TileIndex t, TrackBits tracks)
 {
+	if (likely(HasAtMostOneBit(tracks))) return tracks;
+
 	if (!IsPlainRailTile(t)) return tracks;

 	TrackdirBits neighbour_tdb = TRACKDIR_BIT_NONE;