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author | Darkvater <Darkvater@openttd.org> | 2005-05-09 22:33:00 +0000 |
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committer | Darkvater <Darkvater@openttd.org> | 2005-05-09 22:33:00 +0000 |
commit | 6d349b6284f2d7fe65517b03bb310eb508eb3d3a (patch) | |
tree | adf0a3467d8519f1ef67e90a0a06731ea8c4dc1a /airport.h | |
parent | f9fdddb0ad04bb3e1c441884696b08182b82e447 (diff) | |
download | openttd-6d349b6284f2d7fe65517b03bb310eb508eb3d3a.tar.xz |
(svn r2288) - CodeChange: protected the next batch of commands (41 so far, out of 115).
- CodeChange: changed the airport gui airport-type checking. Added function GetValidAirports() that returns bitmasked availibility, is also used for checking.
- CodeChange: to check tree-planting, 2 const arrays have been moved to table/tree_land.h (type and count)
- CodeChange: added IsTownIndex() in following of IsStationIndex(), etc.
- Fix (regression): road tunnels did not work anymore, forgot that their type was 0x200 (documented now)
Diffstat (limited to 'airport.h')
-rw-r--r-- | airport.h | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -48,4 +48,20 @@ void InitializeAirports(void); void UnInitializeAirports(void); const AirportFTAClass* GetAirport(const byte airport_type); +/** Get buildable airport bitmask. + * @return get all buildable airports at this given time, bitmasked. + * Bit 0 means the small airport is buildable, etc. + * @todo set availability of airports by year, instead of airplane + */ +static inline uint32 GetValidAirports(void) +{ + uint32 bytemask = _avail_aircraft; /// sets the first 3 bytes, 0 - 2, @see AdjustAvailAircraft() + + // 1980-1-1 is --> 21915 + // 1990-1-1 is --> 25568 + if (_date >= 21915) {SETBIT(bytemask, 3);} // metropilitan airport 1980 + if (_date >= 25568) {SETBIT(bytemask, 4);} // international airport 1990 + return bytemask; +} + #endif /* AIRPORT_H */ |