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| author | celestar <celestar@openttd.org> | 2006-04-12 09:36:27 +0000 |
|---|---|---|
| committer | celestar <celestar@openttd.org> | 2006-04-12 09:36:27 +0000 |
| commit | ce320ceb55ab150b4066d139c98241dc20e5ea0f (patch) | |
| tree | 066651be5c87829c223c0fbe9b4d2d77c77bbe76 /rail_map.h | |
| parent | 3207d63244e3e2c3c60b281d41a41d74d3a6cadd (diff) | |
| download | openttd-ce320ceb55ab150b4066d139c98241dc20e5ea0f.tar.xz | |
(svn r4378) -Add and make use of an accessor function two-way => one-way => one-way => two-way signal cycling
Diffstat (limited to 'rail_map.h')
| -rw-r--r-- | rail_map.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/rail_map.h b/rail_map.h index da72d0250..f3a7a4626 100644 --- a/rail_map.h +++ b/rail_map.h @@ -174,6 +174,17 @@ static inline bool IsPresignalExit(TileIndex t) return GetSignalType(t) == SIGTYPE_EXIT || GetSignalType(t) == SIGTYPE_COMBO; } +static inline void CycleSignalSide(TileIndex t, Track track) +{ + byte sig; + byte pos = 6; + if (track == TRACK_LOWER || track == TRACK_RIGHT) pos = 4; + + sig = GB(_m[t].m3, pos, 2); + if (--sig == 0) sig = 3; + SB(_m[t].m3, pos, 2, sig); +} + typedef enum SignalVariant { SIG_ELECTRIC = 0, |