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#ifndef ENGINE_H

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#define ENGINE_H

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#include "sprite.h"

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typedef struct RailVehicleInfo {

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	byte image_index;

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	byte flags; /* 1=multihead engine, 2=wagon */

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	byte base_cost;

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	uint16 max_speed;

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	uint16 power;

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	byte weight;

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	byte running_cost_base;

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	byte engclass; // 0: steam, 1: diesel, 2: electric

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	byte capacity;

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	byte cargo_type;

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} RailVehicleInfo;

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typedef struct ShipVehicleInfo {

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	byte image_index;

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	byte base_cost;

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	uint16 max_speed;

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	byte cargo_type;

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	uint16 capacity;

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	byte running_cost;

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	byte sfx;

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	byte refittable;

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} ShipVehicleInfo;

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typedef struct AircraftVehicleInfo {

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	byte image_index;

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	byte base_cost;

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	byte running_cost;

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	byte subtype;

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	byte sfx;

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	byte acceleration;

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	byte max_speed;

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	byte mail_capacity;

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	uint16 passenger_capacity;

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} AircraftVehicleInfo;

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typedef struct RoadVehicleInfo {

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	byte image_index;

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	byte base_cost;

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	byte running_cost;

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	byte sfx;

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	byte max_speed;

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	byte capacity;

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	byte cargo_type;

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} RoadVehicleInfo;

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typedef struct EngineInfo {

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	uint16 base_intro;

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	byte unk2;

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	byte lifelength;

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	byte base_life;

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	byte railtype_climates;

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} EngineInfo;

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typedef struct Engine {

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	uint16 intro_date;

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	uint16 age;

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	uint16 reliability;

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	uint16 reliability_spd_dec;

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	uint16 reliability_start, reliability_max, reliability_final;

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	uint16 duration_phase_1, duration_phase_2, duration_phase_3;

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	byte lifelength;

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	byte flags;

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	byte preview_player;

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	byte preview_wait;

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	byte railtype;

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	byte player_avail;

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	byte type;				// type, ie VEH_Road, VEH_Train, etc. Same as in vehicle.h

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} Engine;

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enum {

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	RVI_MULTIHEAD = 1,

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	RVI_WAGON = 2,

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};

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void AddTypeToEngines(void);

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void StartupEngines(void);

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extern byte _global_cargo_id[NUM_LANDSCAPE][NUM_CARGO];

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enum {

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	CID_DEFAULT = 29,

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	CID_PURCHASE = 30,

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	NUM_CID = 31,

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};

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extern byte _local_cargo_id_ctype[NUM_CID];

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extern byte _local_cargo_id_landscape[NUM_CID];

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extern uint32 _engine_refit_masks[256];

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extern byte _engine_original_sprites[256];

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void SetWagonOverrideSprites(byte engine, struct SpriteGroup *group, byte *train_id, int trains);

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void SetCustomEngineSprites(byte engine, byte cargo, struct SpriteGroup *group);

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// loaded is in percents, overriding_engine 0xffff is none

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int GetCustomEngineSprite(byte engine, Vehicle *v, byte direction);

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#define GetCustomVehicleSprite(v, direction) GetCustomEngineSprite(v->engine_type, v, direction)

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#define GetCustomVehicleIcon(et, direction) GetCustomEngineSprite(et, NULL, direction)

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enum VehicleTrigger {

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	VEHICLE_TRIGGER_NEW_CARGO = 1,

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	// Externally triggered only for the first vehicle in chain

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	VEHICLE_TRIGGER_DEPOT = 2,

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	// Externally triggered only for the first vehicle in chain, only if whole chain is empty

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	VEHICLE_TRIGGER_EMPTY = 4,

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	// Not triggered externally (called for the whole chain if we got NEW_CARGO)

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	VEHICLE_TRIGGER_ANY_NEW_CARGO = 8,

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};

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void TriggerVehicle(Vehicle *veh, enum VehicleTrigger trigger);

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StringID GetCustomEngineName(int engine);

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void DrawTrainEngine(int x, int y, int engine, uint32 image_ormod);

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void DrawRoadVehEngine(int x, int y, int engine, uint32 image_ormod);

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void DrawShipEngine(int x, int y, int engine, uint32 image_ormod);

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void DrawAircraftEngine(int x, int y, int engine, uint32 image_ormod);

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void DrawTrainEngineInfo(int engine, int x, int y, int maxw);

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void DrawRoadVehEngineInfo(int engine, int x, int y, int maxw);

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void DrawShipEngineInfo(int engine, int x, int y, int maxw);

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void DrawAircraftEngineInfo(int engine, int x, int y, int maxw);

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void AcceptEnginePreview(Engine *e, int player);

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void LoadCustomEngineNames(void);

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void DeleteCustomEngineNames(void);

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bool IsEngineBuildable(uint engine, byte type);

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enum {

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	NUM_NORMAL_RAIL_ENGINES = 54,

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	NUM_MONORAIL_ENGINES = 30,

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	NUM_MAGLEV_ENGINES = 32,

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	NUM_TRAIN_ENGINES = NUM_NORMAL_RAIL_ENGINES + NUM_MONORAIL_ENGINES + NUM_MAGLEV_ENGINES,

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	NUM_ROAD_ENGINES = 88,

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	NUM_SHIP_ENGINES = 11,

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	NUM_AIRCRAFT_ENGINES = 41,

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	TOTAL_NUM_ENGINES = NUM_TRAIN_ENGINES + NUM_ROAD_ENGINES + NUM_SHIP_ENGINES + NUM_AIRCRAFT_ENGINES,

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	AIRCRAFT_ENGINES_INDEX = NUM_TRAIN_ENGINES + NUM_ROAD_ENGINES + NUM_SHIP_ENGINES,

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	SHIP_ENGINES_INDEX = NUM_TRAIN_ENGINES + NUM_ROAD_ENGINES,

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	ROAD_ENGINES_INDEX = NUM_TRAIN_ENGINES,

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};

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VARDEF Engine _engines[TOTAL_NUM_ENGINES];

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#define DEREF_ENGINE(i) (&_engines[i])

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VARDEF StringID _engine_name_strings[TOTAL_NUM_ENGINES];

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/* Access Vehicle Data */

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//#include "table/engines.h"

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extern EngineInfo _engine_info[TOTAL_NUM_ENGINES];

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extern RailVehicleInfo _rail_vehicle_info[NUM_TRAIN_ENGINES];

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extern ShipVehicleInfo _ship_vehicle_info[NUM_SHIP_ENGINES];

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extern AircraftVehicleInfo _aircraft_vehicle_info[NUM_AIRCRAFT_ENGINES];

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extern RoadVehicleInfo _road_vehicle_info[NUM_ROAD_ENGINES];

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static inline RailVehicleInfo *RailVehInfo(uint e)

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{

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	assert(e < lengthof(_rail_vehicle_info));

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	return &_rail_vehicle_info[e];

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}

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static inline ShipVehicleInfo *ShipVehInfo(uint e)

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{

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	assert(e - SHIP_ENGINES_INDEX < lengthof(_ship_vehicle_info));

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	return &_ship_vehicle_info[e - SHIP_ENGINES_INDEX];

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}

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static inline AircraftVehicleInfo *AircraftVehInfo(uint e)

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{

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	assert(e - AIRCRAFT_ENGINES_INDEX < lengthof(_aircraft_vehicle_info));

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	return &_aircraft_vehicle_info[e - AIRCRAFT_ENGINES_INDEX];

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}

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static inline RoadVehicleInfo *RoadVehInfo(uint e)

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{

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	assert(e - ROAD_ENGINES_INDEX < lengthof(_road_vehicle_info));

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	return &_road_vehicle_info[e - ROAD_ENGINES_INDEX];

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}

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#endif