tron@2186: /* $Id$ */
tron@2186: 
truelight@0: #ifndef VEHICLE_H
truelight@0: #define VEHICLE_H
truelight@0: 
matthijs@5216: #include "oldpool.h"
truelight@1024: #include "order.h"
matthijs@1944: #include "rail.h"
tron@577: 
matthijs@1763: enum {
rubidium@4344: 	VEH_Invalid  = 0x00,
rubidium@4344: 	VEH_Train    = 0x10,
rubidium@4344: 	VEH_Road     = 0x11,
rubidium@4344: 	VEH_Ship     = 0x12,
matthijs@1752: 	VEH_Aircraft = 0x13,
rubidium@4344: 	VEH_Special  = 0x14,
matthijs@1752: 	VEH_Disaster = 0x15,
matthijs@1763: } ;
matthijs@1752: 
matthijs@1752: enum VehStatus {
rubidium@4344: 	VS_HIDDEN          = 0x01,
rubidium@4344: 	VS_STOPPED         = 0x02,
rubidium@4344: 	VS_UNCLICKABLE     = 0x04,
rubidium@4344: 	VS_DEFPAL          = 0x08,
rubidium@4344: 	VS_TRAIN_SLOWING   = 0x10,
rubidium@4344: 	VS_SHADOW          = 0x20,
matthijs@1752: 	VS_AIRCRAFT_BROKEN = 0x40,
rubidium@4344: 	VS_CRASHED         = 0x80,
matthijs@1752: };
matthijs@1752: 
peter1138@5211: enum LoadStatus {
peter1138@5211: 	LS_LOADING_FINISHED,
peter1138@5211: 	LS_CARGO_UNLOADING,
peter1138@5251: 	LS_CARGO_PAID_FOR,
peter1138@5211: };
peter1138@5211: 
matthijs@1752: /* Effect vehicle types */
matthijs@1752: typedef enum EffectVehicle {
matthijs@1752: 	EV_CHIMNEY_SMOKE   = 0,
matthijs@1752: 	EV_STEAM_SMOKE     = 1,
matthijs@1752: 	EV_DIESEL_SMOKE    = 2,
matthijs@1752: 	EV_ELECTRIC_SPARK  = 3,
matthijs@1752: 	EV_SMOKE           = 4,
matthijs@1752: 	EV_EXPLOSION_LARGE = 5,
matthijs@1752: 	EV_BREAKDOWN_SMOKE = 6,
matthijs@1752: 	EV_EXPLOSION_SMALL = 7,
matthijs@1752: 	EV_BULLDOZER       = 8,
matthijs@1752: 	EV_BUBBLE          = 9
matthijs@1752: } EffectVehicle;
matthijs@1752: 
truelight@0: typedef struct VehicleRail {
rubidium@4434: 	uint16 last_speed; // NOSAVE: only used in UI
truelight@0: 	uint16 crash_anim_pos;
truelight@193: 	uint16 days_since_order_progr;
truelight@193: 
hackykid@1905: 	// cached values, recalculated on load and each time a vehicle is added to/removed from the consist.
hackykid@1905: 	uint16 cached_max_speed;  // max speed of the consist. (minimum of the max speed of all vehicles in the consist)
hackykid@1905: 	uint32 cached_power;      // total power of the consist.
hackykid@1922: 	uint8 cached_veh_length;  // length of this vehicle in units of 1/8 of normal length, cached because this can be set by a callback
peter1138@2587: 	uint16 cached_total_length; ///< Length of the whole train, valid only for first engine.
peter1138@2587: 
hackykid@1905: 	// cached values, recalculated when the cargo on a train changes (in addition to the conditions above)
peter1138@5162: 	uint32 cached_weight;     // total weight of the consist.
peter1138@5162: 	uint32 cached_veh_weight; // weight of the vehicle.
peter1138@5588: 	uint32 cached_max_te;     // max tractive effort of consist
peter1138@2595: 	/**
peter1138@2595: 	 * Position/type of visual effect.
peter1138@2595: 	 * bit 0 - 3 = position of effect relative to vehicle. (0 = front, 8 = centre, 15 = rear)
peter1138@2595: 	 * bit 4 - 5 = type of effect. (0 = default for engine class, 1 = steam, 2 = diesel, 3 = electric)
peter1138@2595: 	 * bit     6 = disable visual effect.
peter1138@2595: 	 * bit     7 = disable powered wagons.
peter1138@2595: 	 */
peter1138@2595: 	byte cached_vis_effect;
truelight@0: 
truelight@0: 	// NOSAVE: for wagon override - id of the first engine in train
truelight@0: 	// 0xffff == not in train
Darkvater@1796: 	EngineID first_engine;
truelight@0: 
truelight@0: 	byte track;
truelight@0: 	byte force_proceed;
truelight@0: 	byte railtype;
celestar@3355: 	RailTypeMask compatible_railtypes;
truelight@0: 
truelight@0: 	byte flags;
hackykid@2008: 
bjarni@2676: 	// Link between the two ends of a multiheaded engine
bjarni@2676: 	Vehicle *other_multiheaded_part;
truelight@0: } VehicleRail;
truelight@0: 
truelight@0: enum {
rubidium@4344: 	VRF_REVERSING         = 0,
truelight@0: 
truelight@0: 	// used to calculate if train is going up or down
rubidium@4344: 	VRF_GOINGUP           = 1,
rubidium@4344: 	VRF_GOINGDOWN         = 2,
hackykid@1908: 
hackykid@1908: 	// used to store if a wagon is powered or not
rubidium@4344: 	VRF_POWEREDWAGON      = 3,
bjarni@3256: 
bjarni@3256: 	// used to reverse the visible direction of the vehicle
bjarni@3256: 	VRF_REVERSE_DIRECTION = 4,
KUDr@4870: 
KUDr@4870: 	// used to mark train as lost because PF can't find the route
KUDr@4870: 	VRF_NO_PATH_TO_DESTINATION = 5,
KUDr@5116: 
KUDr@5116: 	// used to mark that electric train engine is allowed to run on normal rail
KUDr@5116: 	VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL = 6,
truelight@0: };
truelight@0: 
truelight@0: typedef struct VehicleAir {
truelight@0: 	uint16 crashed_counter;
truelight@0: 	byte pos;
tron@4077: 	byte previous_pos;
Darkvater@3347: 	StationID targetairport;
truelight@0: 	byte state;
truelight@0: } VehicleAir;
truelight@0: 
truelight@0: typedef struct VehicleRoad {
truelight@0: 	byte state;
truelight@0: 	byte frame;
peter1138@3009: 	uint16 blocked_ctr;
truelight@0: 	byte overtaking;
truelight@0: 	byte overtaking_ctr;
truelight@0: 	uint16 crashed_ctr;
truelight@0: 	byte reverse_ctr;
celestar@1217: 	struct RoadStop *slot;
celestar@1217: 	byte slot_age;
truelight@0: } VehicleRoad;
truelight@0: 
truelight@0: typedef struct VehicleSpecial {
truelight@0: 	uint16 unk0;
truelight@0: 	byte unk2;
truelight@0: } VehicleSpecial;
truelight@0: 
truelight@0: typedef struct VehicleDisaster {
truelight@0: 	uint16 image_override;
truelight@0: 	uint16 unk2;
truelight@0: } VehicleDisaster;
truelight@0: 
truelight@0: typedef struct VehicleShip {
truelight@0: 	byte state;
truelight@0: } VehicleShip;
truelight@0: 
truelight@0: 
truelight@0: struct Vehicle {
rubidium@4344: 	byte type;               // type, ie roadven,train,ship,aircraft,special
rubidium@4344: 	byte subtype;            // subtype (Filled with values from EffectVehicles or TrainSubTypes)
truelight@0: 
rubidium@4344: 	VehicleID index;         // NOSAVE: Index in vehicle array
truelight@0: 
rubidium@4344: 	Vehicle *next;           // next
rubidium@4344: 	Vehicle *first;          // NOSAVE: pointer to the first vehicle in the chain
rubidium@4344: 	Vehicle *depot_list;     //NOSAVE: linked list to tell what vehicles entered a depot during the last tick. Used by autoreplace
truelight@0: 
rubidium@4344: 	StringID string_id;      // Displayed string
truelight@0: 
rubidium@4344: 	UnitID unitnumber;       // unit number, for display purposes only
rubidium@4344: 	PlayerID owner;          // which player owns the vehicle?
rubidium@4344: 
rubidium@4344: 	TileIndex tile;          // Current tile index
rubidium@4344: 	TileIndex dest_tile;     // Heading for this tile
rubidium@4344: 
rubidium@4344: 	int32 x_pos;             // coordinates
tron@1174: 	int32 y_pos;
truelight@0: 	byte z_pos;
rubidium@4344: 	byte direction;          // facing
truelight@0: 
rubidium@4344: 	byte spritenum;          // currently displayed sprite index
rubidium@4344: 	                         // 0xfd == custom sprite, 0xfe == custom second head sprite
rubidium@4344: 	                         // 0xff == reserved for another custom sprite
rubidium@4344: 	uint16 cur_image;        // sprite number for this vehicle
rubidium@4344: 	byte sprite_width;       // width of vehicle sprite
rubidium@4344: 	byte sprite_height;      // height of vehicle sprite
rubidium@4344: 	byte z_height;           // z-height of vehicle sprite
rubidium@4344: 	int8 x_offs;             // x offset for vehicle sprite
rubidium@4344: 	int8 y_offs;             // y offset for vehicle sprite
Darkvater@1770: 	EngineID engine_type;
truelight@0: 
tron@445: 	// for randomized variational spritegroups
tron@445: 	// bitmask used to resolve them; parts of it get reseeded when triggers
tron@445: 	// of corresponding spritegroups get matched
tron@445: 	byte random_bits;
rubidium@4344: 	byte waiting_triggers;   // triggers to be yet matched
tron@445: 
rubidium@4344: 	uint16 max_speed;        // maximum speed
rubidium@4344: 	uint16 cur_speed;        // current speed
rubidium@4344: 	byte subspeed;           // fractional speed
rubidium@4344: 	byte acceleration;       // used by train & aircraft
truelight@0: 	byte progress;
peter1138@4656: 	uint32 motion_counter;
truelight@0: 
rubidium@4344: 	byte vehstatus;          // Status
Darkvater@3347: 	StationID last_station_visited;
truelight@193: 
rubidium@4344: 	CargoID cargo_type;      // type of cargo this vehicle is carrying
rubidium@4344: 	byte cargo_days;         // how many days have the pieces been in transit
rubidium@4344: 	StationID cargo_source;  // source of cargo
rubidium@4344: 	uint16 cargo_cap;        // total capacity
rubidium@4344: 	uint16 cargo_count;      // how many pieces are used
peter1138@3870: 	byte cargo_subtype;      ///< Used for livery refits (NewGRF variations)
truelight@0: 
rubidium@4344: 	byte day_counter;        // increased by one for each day
rubidium@4344: 	byte tick_counter;       // increased by one for each tick
truelight@0: 
truelight@1024: 	/* Begin Order-stuff */
peter1138@3173: 	Order current_order;     ///< The current order (+ status, like: loading)
truelight@4391: 	VehicleOrderID cur_order_index; ///< The index to the current order
truelight@1024: 
peter1138@3173: 	Order *orders;           ///< Pointer to the first order for this vehicle
truelight@4391: 	VehicleOrderID num_orders;      ///< How many orders there are in the list
truelight@1024: 
peter1138@3173: 	Vehicle *next_shared;    ///< If not NULL, this points to the next vehicle that shared the order
peter1138@3173: 	Vehicle *prev_shared;    ///< If not NULL, this points to the prev vehicle that shared the order
truelight@1024: 	/* End Order-stuff */
truelight@0: 
truelight@0: 	// Boundaries for the current position in the world and a next hash link.
truelight@0: 	// NOSAVE: All of those can be updated with VehiclePositionChanged()
tron@849: 	int32 left_coord;
tron@849: 	int32 top_coord;
tron@849: 	int32 right_coord;
tron@849: 	int32 bottom_coord;
tron@2634: 	VehicleID next_hash;
truelight@0: 
truelight@0: 	// Related to age and service time
rubidium@4326: 	Date age;     // Age in days
rubidium@4326: 	Date max_age; // Maximum age
rubidium@4289: 	Date date_of_last_service;
rubidium@4289: 	Date service_interval;
truelight@0: 	uint16 reliability;
truelight@0: 	uint16 reliability_spd_dec;
truelight@0: 	byte breakdown_ctr;
truelight@0: 	byte breakdown_delay;
truelight@0: 	byte breakdowns_since_last_service;
truelight@0: 	byte breakdown_chance;
rubidium@4326: 	Year build_year;
truelight@0: 
rubidium@4344: 	bool leave_depot_instantly; // NOSAVE: stores if the vehicle needs to leave the depot it just entered. Used by autoreplace
bjarni@2617: 
truelight@0: 	uint16 load_unload_time_rem;
peter1138@5211: 	byte load_status;
truelight@193: 
truelight@0: 	int32 profit_this_year;
truelight@0: 	int32 profit_last_year;
truelight@0: 	uint32 value;
truelight@0: 
truelight@0: 	union {
truelight@0: 		VehicleRail rail;
truelight@0: 		VehicleAir air;
truelight@0: 		VehicleRoad road;
truelight@0: 		VehicleSpecial special;
truelight@0: 		VehicleDisaster disaster;
truelight@0: 		VehicleShip ship;
truelight@0: 	} u;
truelight@0: };
truelight@0: 
Darkvater@1765: #define is_custom_sprite(x) (x >= 0xFD)
Darkvater@1765: #define IS_CUSTOM_FIRSTHEAD_SPRITE(x) (x == 0xFD)
Darkvater@1765: #define IS_CUSTOM_SECONDHEAD_SPRITE(x) (x == 0xFE)
truelight@0: 
truelight@0: typedef void *VehicleFromPosProc(Vehicle *v, void *data);
truelight@0: 
bjarni@578: void VehicleServiceInDepot(Vehicle *v);
tron@1093: Vehicle *AllocateVehicle(void);
bjarni@2601: bool AllocateVehicles(Vehicle **vl, int num);
tron@1093: Vehicle *ForceAllocateVehicle(void);
tron@1093: Vehicle *ForceAllocateSpecialVehicle(void);
truelight@0: void VehiclePositionChanged(Vehicle *v);
tron@1093: void AfterLoadVehicles(void);
truelight@0: Vehicle *GetLastVehicleInChain(Vehicle *v);
tron@1475: Vehicle *GetPrevVehicleInChain(const Vehicle *v);
tron@1475: Vehicle *GetFirstVehicleInChain(const Vehicle *v);
tron@2630: uint CountVehiclesInChain(const Vehicle* v);
bjarni@4574: bool IsEngineCountable(const Vehicle *v);
truelight@0: void DeleteVehicleChain(Vehicle *v);
truelight@0: void *VehicleFromPos(TileIndex tile, void *data, VehicleFromPosProc *proc);
tron@1093: void CallVehicleTicks(void);
truelight@1605: Vehicle *FindVehicleOnTileZ(TileIndex tile, byte z);
truelight@0: 
tron@1093: void InitializeTrains(void);
peter1138@2804: byte VehicleRandomBits(void);
Darkvater@5352: void ResetVehiclePosHash(void);
truelight@0: 
truelight@0: bool CanFillVehicle(Vehicle *v);
peter1138@2704: bool CanRefitTo(EngineID engine_type, CargoID cid_to);
peter1138@3973: CargoID FindFirstRefittableCargo(EngineID engine_type);
bjarni@4544: int32 GetRefitCost(EngineID engine_type);
truelight@0: 
truelight@0: void ViewportAddVehicles(DrawPixelInfo *dpi);
truelight@0: 
truelight@0: /* train_cmd.h */
tron@3157: int GetTrainImage(const Vehicle* v, Direction direction);
tron@3157: int GetAircraftImage(const Vehicle* v, Direction direction);
tron@3157: int GetRoadVehImage(const Vehicle* v, Direction direction);
tron@3157: int GetShipImage(const Vehicle* v, Direction direction);
truelight@0: 
tron@1359: Vehicle *CreateEffectVehicle(int x, int y, int z, EffectVehicle type);
tron@1359: Vehicle *CreateEffectVehicleAbove(int x, int y, int z, EffectVehicle type);
tron@1359: Vehicle *CreateEffectVehicleRel(const Vehicle *v, int x, int y, int z, EffectVehicle type);
truelight@0: 
tron@1977: uint32 VehicleEnterTile(Vehicle *v, TileIndex tile, int x, int y);
truelight@0: 
tron@3881: StringID VehicleInTheWayErrMsg(const Vehicle* v);
truelight@0: Vehicle *FindVehicleBetween(TileIndex from, TileIndex to, byte z);
truelight@0: 
tron@3172: bool UpdateSignalsOnSegment(TileIndex tile, DiagDirection direction);
tron@1977: void SetSignalsOnBothDir(TileIndex tile, byte track);
truelight@0: 
tron@2116: Vehicle *CheckClickOnVehicle(const ViewPort *vp, int x, int y);
truelight@0: 
truelight@0: void DecreaseVehicleValue(Vehicle *v);
truelight@0: void CheckVehicleBreakdown(Vehicle *v);
truelight@0: void AgeVehicle(Vehicle *v);
bjarni@2574: void VehicleEnteredDepotThisTick(Vehicle *v);
truelight@0: 
truelight@0: void BeginVehicleMove(Vehicle *v);
truelight@0: void EndVehicleMove(Vehicle *v);
truelight@0: 
tron@2561: void ShowAircraftViewWindow(const Vehicle* v);
truelight@0: 
truelight@1282: UnitID GetFreeUnitNumber(byte type);
truelight@0: 
peter1138@5211: int LoadUnloadVehicle(Vehicle *v, bool just_arrived);
truelight@0: 
hackykid@1905: void TrainConsistChanged(Vehicle *v);
celestar@3355: void TrainPowerChanged(Vehicle *v);
Darkvater@1790: int32 GetTrainRunningCost(const Vehicle *v);
truelight@0: 
tron@1472: int CheckTrainStoppedInDepot(const Vehicle *v);
truelight@0: 
tron@593: bool VehicleNeedsService(const Vehicle *v);
tron@593: 
bjarni@4681: uint GenerateVehicleSortList(const Vehicle*** sort_list, uint16 *length_of_array, byte type, PlayerID owner, StationID station, OrderID order, uint16 depot_airport_index, uint16 window_type);
bjarni@4635: void BuildDepotVehicleList(byte type, TileIndex tile, Vehicle ***engine_list, uint16 *engine_list_length, uint16 *engine_count, Vehicle ***wagon_list, uint16 *wagon_list_length, uint16 *wagon_count);
bjarni@4506: int32 SendAllVehiclesToDepot(byte type, uint32 flags, bool service, PlayerID owner, uint16 vlw_flag, uint32 id);
bjarni@4734: bool IsVehicleInDepot(const Vehicle *v);
bjarni@4725: void VehicleEnterDepot(Vehicle *v);
bjarni@4506: 
bjarni@4506: /* Flags to add to p2 for goto depot commands */
bjarni@4506: /* Note: bits 8-10 are used for VLW flags */
bjarni@4506: enum {
bjarni@4506: 	DEPOT_SERVICE       = (1 << 0),	// The vehicle will leave the depot right after arrival (serivce only)
bjarni@4506: 	DEPOT_MASS_SEND     = (1 << 1), // Tells that it's a mass send to depot command (type in VLW flag)
bjarni@4506: 	DEPOT_DONT_CANCEL   = (1 << 2), // Don't cancel current goto depot command if any
bjarni@4506: 	DEPOT_LOCATE_HANGAR = (1 << 3), // Find another airport if the target one lacks a hangar
bjarni@4506: };
bjarni@4463: 
truelight@0: typedef struct GetNewVehiclePosResult {
truelight@0: 	int x,y;
tron@1977: 	TileIndex old_tile;
tron@1977: 	TileIndex new_tile;
truelight@0: } GetNewVehiclePosResult;
truelight@0: 
matthijs@1752: /**
matthijs@1752:  * Returns the Trackdir on which the vehicle is currently located.
matthijs@1752:  * Works for trains and ships.
matthijs@1752:  * Currently works only sortof for road vehicles, since they have a fuzzy
matthijs@1752:  * concept of being "on" a trackdir. Dunno really what it returns for a road
matthijs@1752:  * vehicle that is halfway a tile, never really understood that part. For road
matthijs@1752:  * vehicles that are at the beginning or end of the tile, should just return
matthijs@1752:  * the diagonal trackdir on which they are driving. I _think_.
matthijs@1752:  * For other vehicles types, or vehicles with no clear trackdir (such as those
matthijs@1752:  * in depots), returns 0xFF.
matthijs@1752:  */
matthijs@1944: Trackdir GetVehicleTrackdir(const Vehicle* v);
matthijs@1752: 
truelight@0: /* returns true if staying in the same tile */
Darkvater@2436: bool GetNewVehiclePos(const Vehicle *v, GetNewVehiclePosResult *gp);
tron@3157: Direction GetDirectionTowards(const Vehicle* v, int x, int y);
truelight@0: 
truelight@0: #define BEGIN_ENUM_WAGONS(v) do {
truelight@0: #define END_ENUM_WAGONS(v) } while ( (v=v->next) != NULL);
truelight@0: 
matthijs@5216: DECLARE_OLD_POOL(Vehicle, Vehicle, 9, 125)
truelight@1279: 
matthijs@5247: static inline VehicleID GetMaxVehicleIndex(void)
truelight@4354: {
truelight@4354: 	/* TODO - This isn't the real content of the function, but
truelight@4354: 	 *  with the new pool-system this will be replaced with one that
matthijs@5247: 	 *  _really_ returns the highest index. Now it just returns
truelight@4354: 	 *  the next safe value we are sure about everything is below.
truelight@4354: 	 */
matthijs@5247: 	return GetVehiclePoolSize() - 1;
matthijs@5247: }
matthijs@5247: 
matthijs@5247: static inline uint GetNumVehicles(void)
matthijs@5247: {
truelight@4354: 	return GetVehiclePoolSize();
truelight@4354: }
truelight@4354: 
truelight@1279: /**
matthijs@1330:  * Check if a Vehicle really exists.
matthijs@1330:  */
Darkvater@1770: static inline bool IsValidVehicle(const Vehicle *v)
matthijs@1330: {
matthijs@1330: 	return v->type != 0;
matthijs@1330: }
matthijs@1330: 
truelight@4404: void DestroyVehicle(Vehicle *v);
truelight@4404: 
truelight@4404: static inline void DeleteVehicle(Vehicle *v)
truelight@4404: {
truelight@4404: 	DestroyVehicle(v);
truelight@4404: 	v->type = 0;
truelight@4404: }
truelight@4404: 
tron@4972: #define FOR_ALL_VEHICLES_FROM(v, start) for (v = GetVehicle(start); v != NULL; v = (v->index + 1U < GetVehiclePoolSize()) ? GetVehicle(v->index + 1) : NULL) if (IsValidVehicle(v))
truelight@4346: #define FOR_ALL_VEHICLES(v) FOR_ALL_VEHICLES_FROM(v, 0)
truelight@4346: 
matthijs@1330: /**
truelight@1279:  * Check if an index is a vehicle-index (so between 0 and max-vehicles)
truelight@1279:  *
truelight@1279:  * @return Returns true if the vehicle-id is in range
truelight@1279:  */
truelight@4352: static inline bool IsValidVehicleID(uint index)
bjarni@1237: {
truelight@4352: 	return index < GetVehiclePoolSize() && IsValidVehicle(GetVehicle(index));
bjarni@1237: }
bjarni@1237: 
truelight@1024: /* Returns order 'index' of a vehicle or NULL when it doesn't exists */
truelight@1024: static inline Order *GetVehicleOrder(const Vehicle *v, int index)
truelight@1024: {
truelight@1024: 	Order *order = v->orders;
truelight@1024: 
Darkvater@1765: 	if (index < 0) return NULL;
truelight@1024: 
truelight@1024: 	while (order != NULL && index-- > 0)
truelight@1024: 		order = order->next;
truelight@1024: 
truelight@1024: 	return order;
truelight@1024: }
truelight@1024: 
truelight@1024: /* Returns the last order of a vehicle, or NULL if it doesn't exists */
truelight@1024: static inline Order *GetLastVehicleOrder(const Vehicle *v)
truelight@1024: {
truelight@1024: 	Order *order = v->orders;
truelight@1024: 
Darkvater@1765: 	if (order == NULL) return NULL;
truelight@1024: 
truelight@1024: 	while (order->next != NULL)
truelight@1024: 		order = order->next;
truelight@1024: 
truelight@1024: 	return order;
truelight@1024: }
truelight@1024: 
truelight@1024: /* Get the first vehicle of a shared-list, so we only have to walk forwards */
Darkvater@4494: static inline Vehicle *GetFirstVehicleFromSharedList(const Vehicle *v)
truelight@1024: {
Darkvater@4494: 	Vehicle *u = (Vehicle *)v;
Darkvater@4494: 	while (u->prev_shared != NULL) u = u->prev_shared;
truelight@1024: 
truelight@1024: 	return u;
truelight@1024: }
truelight@0: 
truelight@0: // NOSAVE: Return values from various commands.
bjarni@2564: VARDEF VehicleID _new_vehicle_id;
peter1138@3008: VARDEF uint16 _returned_refit_capacity;
truelight@0: 
truelight@4384: enum {
truelight@4384: 	INVALID_VEHICLE = 0xFFFF,
truelight@4384: };
truelight@0: 
peter1138@3105: /**
peter1138@3105:  * Get the colour map for an engine. This used for unbuilt engines in the user interface.
peter1138@3105:  * @param engine_type ID of engine
peter1138@3105:  * @param player ID of player
peter1138@3105:  * @return A ready-to-use palette modifier
peter1138@3105:  */
peter1138@3105: PalSpriteID GetEnginePalette(EngineID engine_type, PlayerID player);
peter1138@3040: 
peter1138@3105: /**
peter1138@3105:  * Get the colour map for a vehicle.
peter1138@3105:  * @param v Vehicle to get colour map for
peter1138@3105:  * @return A ready-to-use palette modifier
peter1138@3105:  */
peter1138@3105: PalSpriteID GetVehiclePalette(const Vehicle *v);
peter1138@3040: 
darkvater@755: /* A lot of code calls for the invalidation of the status bar, which is widget 5.
darkvater@755:  * Best is to have a virtual value for it when it needs to change again */
darkvater@755: #define STATUS_BAR 5
darkvater@755: 
Darkvater@4494: extern const uint32 _send_to_depot_proc_table[];
bjarni@4451: #define CMD_SEND_TO_DEPOT(x) _send_to_depot_proc_table[ x - VEH_Train]
bjarni@4451: 
truelight@0: #endif /* VEHICLE_H */