cpp/openttd-patchpack/source Files · airport.h

Files @ r2008:5e435ad4c8e4

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Location: cpp/openttd-patchpack/source/airport.h

r2008:5e435ad4c8e4 2.2 KiB text/x-c Show Annotation Show as Raw Download as Raw

hackykid

(svn r2516) - Feature: [pbs] Implement path-based-signalling. This allows multiple trains within the same signal block, provided their paths dont intersect. For this the block must have all exit and entry signals be pbs signals. Place these by ctrl-clicking 4 times on a normal signal.
- Feature: [pbs] Implement autoplacement of pbs blocks, when a block has an entry and an exit pbs signal, covert the entire block to pbs. Can be turned off in the patch settings.
- Feature: [pbs] Allow showing of reserved status by making the tracks darker, when the pbs debug level is at least 1.

#ifndef AIRPORT_H
#define AIRPORT_H

#include "airport_movement.h"

enum {MAX_TERMINALS = 6};
enum {MAX_HELIPADS  = 2};

// Airport types
enum {
	AT_SMALL = 0,
	AT_LARGE = 1,
	AT_HELIPORT = 2,
	AT_METROPOLITAN = 3,
	AT_INTERNATIONAL = 4,
	AT_OILRIG = 15
};

// do not change unless you change v->subtype too. This aligns perfectly with its current setting
enum {
	AIRCRAFT_ONLY = 0,
	ALL = 1,
	HELICOPTERS_ONLY = 2
};

// Finite sTate mAchine --> FTA
typedef struct AirportFTAClass {
	byte nofelements;							// number of positions the airport consists of
	const byte *terminals;
	const byte *helipads;
	byte entry_point;							// when an airplane arrives at this airport, enter it at position entry_point
	byte acc_planes;							// accept airplanes or helicopters or both
	const TileIndexDiffC *airport_depots;	// gives the position of the depots on the airports
	byte nof_depots;							// number of depots this airport has
	struct AirportFTA *layout;		// state machine for airport
} AirportFTAClass;

// internal structure used in openttd - Finite sTate mAchine --> FTA
typedef struct AirportFTA {
	byte position;										// the position that an airplane is at
	byte next_position;								// next position from this position
	uint32 block;	// 32 bit blocks (st->airport_flags), should be enough for the most complex airports
	byte heading;	// heading (current orders), guiding an airplane to its target on an airport
	struct AirportFTA *next_in_chain;	// possible extra movement choices from this position
} AirportFTA;

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 */