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author | tron <tron@openttd.org> | 2006-06-04 16:04:15 +0000 |
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committer | tron <tron@openttd.org> | 2006-06-04 16:04:15 +0000 |
commit | fa740023567157cf18d4dd06880307e7b08b7c77 (patch) | |
tree | 7fafd1f3b5f9dd18acaf05ec2212fd5099f44243 /direction.h | |
parent | 479317b1eb85ba94491e2fd6d330f38fb25e02ea (diff) | |
download | openttd-fa740023567157cf18d4dd06880307e7b08b7c77.tar.xz |
(svn r5101) Add a function to convert an axis and a flag for north/south into a DiagDirection. Use it for bridge ramps and ship depots
Diffstat (limited to 'direction.h')
-rw-r--r-- | direction.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/direction.h b/direction.h index cee9ab73a..fcc6771be 100644 --- a/direction.h +++ b/direction.h @@ -113,6 +113,16 @@ static inline DiagDirection AxisToDiagDir(Axis a) return (DiagDirection)(2 - a); } +/** + * Convert an axis and a flag for north/south into a DiagDirection + * @param ns north -> 0, south -> 1 + */ +static inline DiagDirection XYNSToDiagDir(Axis xy, uint ns) +{ + return (DiagDirection)(xy * 3 ^ ns * 2); +} + + static inline bool IsValidDiagDirection(DiagDirection d) { return d < DIAGDIR_END; |