diff options
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); |