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| author | rubidium <rubidium@openttd.org> | 2011-05-01 19:51:52 +0000 |
|---|---|---|
| committer | rubidium <rubidium@openttd.org> | 2011-05-01 19:51:52 +0000 |
| commit | 5a620d1c6592057b500f0889eef8949dc1e95e4b (patch) | |
| tree | dabae6247490fdea860bea292bb8eee49ce46fe4 /src/slope_type.h | |
| parent | 1a515e6344028854c855671c19f49d8f869eb18f (diff) | |
| download | openttd-5a620d1c6592057b500f0889eef8949dc1e95e4b.tar.xz | |
(svn r22406) -Document: some more "random-ish" tidbits
Diffstat (limited to 'src/slope_type.h')
| -rw-r--r-- | src/slope_type.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/slope_type.h b/src/slope_type.h index 5eb7a7a20..bdf4b78ef 100644 --- a/src/slope_type.h +++ b/src/slope_type.h @@ -79,6 +79,10 @@ enum Slope { }; DECLARE_ENUM_AS_BIT_SET(Slope) +/** + * Helper for creating a bitset of slopes. + * @param x The slope to convert into a bitset. + */ #define M(x) (1 << (x)) /** Constant bitset with safe slopes for building a level crossing. */ static const uint32 VALID_LEVEL_CROSSING_SLOPES = M(SLOPE_SEN) | M(SLOPE_ENW) | M(SLOPE_NWS) | M(SLOPE_NS) | M(SLOPE_WSE) | M(SLOPE_EW) | M(SLOPE_FLAT); |