tron@2186: /* $Id$ */
tron@2186: 
truelight@0: #ifndef AIRPORT_H
truelight@0: #define AIRPORT_H
truelight@0: 
truelight@0: #include "airport_movement.h"
truelight@0: 
truelight@0: enum {MAX_TERMINALS = 6};
truelight@0: enum {MAX_HELIPADS  = 2};
truelight@0: 
truelight@0: // Airport types
truelight@0: enum {
truelight@0: 	AT_SMALL = 0,
truelight@0: 	AT_LARGE = 1,
truelight@0: 	AT_HELIPORT = 2,
truelight@0: 	AT_METROPOLITAN = 3,
truelight@0: 	AT_INTERNATIONAL = 4,
celestar@950: 	AT_OILRIG = 15
truelight@0: };
truelight@0: 
truelight@0: // do not change unless you change v->subtype too. This aligns perfectly with its current setting
truelight@0: enum {
truelight@0: 	AIRCRAFT_ONLY = 0,
truelight@0: 	ALL = 1,
truelight@0: 	HELICOPTERS_ONLY = 2
truelight@0: };
truelight@0: 
truelight@0: // Finite sTate mAchine --> FTA
truelight@0: typedef struct AirportFTAClass {
darkvater@222: 	byte nofelements;							// number of positions the airport consists of
celestar@950: 	const byte *terminals;
celestar@950: 	const byte *helipads;
darkvater@222: 	byte entry_point;							// when an airplane arrives at this airport, enter it at position entry_point
darkvater@222: 	byte acc_planes;							// accept airplanes or helicopters or both
tron@909: 	const TileIndexDiffC *airport_depots;	// gives the position of the depots on the airports
tron@699: 	byte nof_depots;							// number of depots this airport has
darkvater@222: 	struct AirportFTA *layout;		// state machine for airport
truelight@0: } AirportFTAClass;
truelight@0: 
truelight@0: // internal structure used in openttd - Finite sTate mAchine --> FTA
truelight@0: typedef struct AirportFTA {
truelight@0: 	byte position;										// the position that an airplane is at
truelight@0: 	byte next_position;								// next position from this position
truelight@0: 	uint32 block;	// 32 bit blocks (st->airport_flags), should be enough for the most complex airports
truelight@0: 	byte heading;	// heading (current orders), guiding an airplane to its target on an airport
truelight@0: 	struct AirportFTA *next_in_chain;	// possible extra movement choices from this position
truelight@0: } AirportFTA;
truelight@0: 
tron@1093: void InitializeAirports(void);
tron@1093: void UnInitializeAirports(void);
truelight@0: const AirportFTAClass* GetAirport(const byte airport_type);
truelight@0: 
Darkvater@1784: /** Get buildable airport bitmask.
Darkvater@1784:  * @return get all buildable airports at this given time, bitmasked.
Darkvater@1784:  * Bit 0 means the small airport is buildable, etc.
Darkvater@1784:  * @todo set availability of airports by year, instead of airplane
Darkvater@1784:  */
tron@2159: uint32 GetValidAirports(void);
Darkvater@1784: 
truelight@0: #endif /* AIRPORT_H */