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/* $Id$ */
/** @file vehicle_base.h Base class for all vehicles. */
#ifndef VEHICLE_BASE_H
#define VEHICLE_BASE_H
#include "vehicle_type.h"
#include "track_type.h"
#include "rail_type.h"
#include "road_type.h"
#include "cargo_type.h"
#include "direction_type.h"
#include "gfx_type.h"
#include "command_type.h"
#include "date_type.h"
#include "company_base.h"
#include "company_type.h"
#include "oldpool.h"
#include "order_base.h"
#include "cargopacket.h"
#include "texteff.hpp"
#include "group_type.h"
#include "engine_type.h"
#include "order_func.h"
#include "transport_type.h"
/** Road vehicle states */
enum RoadVehicleStates {
/*
* Lower 4 bits are used for vehicle track direction. (Trackdirs)
* When in a road stop (bit 5 or bit 6 set) these bits give the
* track direction of the entry to the road stop.
* As the entry direction will always be a diagonal
* direction (X_NE, Y_SE, X_SW or Y_NW) only bits 0 and 3
* are needed to hold this direction. Bit 1 is then used to show
* that the vehicle is using the second road stop bay.
* Bit 2 is then used for drive-through stops to show the vehicle
* is stopping at this road stop.
*/
/* Numeric values */
RVSB_IN_DEPOT = 0xFE, ///< The vehicle is in a depot
RVSB_WORMHOLE = 0xFF, ///< The vehicle is in a tunnel and/or bridge
/* Bit numbers */
RVS_USING_SECOND_BAY = 1, ///< Only used while in a road stop
RVS_IS_STOPPING = 2, ///< Only used for drive-through stops. Vehicle will stop here
RVS_DRIVE_SIDE = 4, ///< Only used when retrieving move data
RVS_IN_ROAD_STOP = 5, ///< The vehicle is in a road stop
RVS_IN_DT_ROAD_STOP = 6, ///< The vehicle is in a drive-through road stop
/* Bit sets of the above specified bits */
RVSB_IN_ROAD_STOP = 1 << RVS_IN_ROAD_STOP, ///< The vehicle is in a road stop
RVSB_IN_ROAD_STOP_END = RVSB_IN_ROAD_STOP + TRACKDIR_END,
RVSB_IN_DT_ROAD_STOP = 1 << RVS_IN_DT_ROAD_STOP, ///< The vehicle is in a drive-through road stop
RVSB_IN_DT_ROAD_STOP_END = RVSB_IN_DT_ROAD_STOP + TRACKDIR_END,
RVSB_TRACKDIR_MASK = 0x0F, ///< The mask used to extract track dirs
RVSB_ROAD_STOP_TRACKDIR_MASK = 0x09 ///< Only bits 0 and 3 are used to encode the trackdir for road stops
};
enum VehStatus {
VS_HIDDEN = 0x01,
VS_STOPPED = 0x02,
VS_UNCLICKABLE = 0x04,
VS_DEFPAL = 0x08,
VS_TRAIN_SLOWING = 0x10,
VS_SHADOW = 0x20,
VS_AIRCRAFT_BROKEN = 0x40,
VS_CRASHED = 0x80,
};
enum VehicleFlags {
VF_LOADING_FINISHED,
VF_CARGO_UNLOADING,
VF_BUILT_AS_PROTOTYPE,
VF_TIMETABLE_STARTED, ///< Whether the vehicle has started running on the timetable yet.
VF_AUTOFILL_TIMETABLE, ///< Whether the vehicle should fill in the timetable automatically.
VF_AUTOFILL_PRES_WAIT_TIME, ///< Whether non-destructive auto-fill should preserve waiting times
};
struct VehicleRail {
/* Link between the two ends of a multiheaded engine */
Vehicle *other_multiheaded_part;
/* Cached wagon override spritegroup */
const struct SpriteGroup *cached_override;
uint16 last_speed; // NOSAVE: only used in UI
uint16 crash_anim_pos;
/* cached values, recalculated on load and each time a vehicle is added to/removed from the consist. */
uint32 cached_power; ///< total power of the consist.
uint16 cached_max_speed; ///< max speed of the consist. (minimum of the max speed of all vehicles in the consist)
uint16 cached_total_length; ///< Length of the whole train, valid only for first engine.
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
bool cached_tilt; ///< train can tilt; feature provides a bonus in curves
/* cached values, recalculated when the cargo on a train changes (in addition to the conditions above) */
uint32 cached_weight; ///< total weight of the consist.
uint32 cached_veh_weight; ///< weight of the vehicle.
uint32 cached_max_te; ///< max tractive effort of consist
/**
* Position/type of visual effect.
* bit 0 - 3 = position of effect relative to vehicle. (0 = front, 8 = centre, 15 = rear)
* bit 4 - 5 = type of effect. (0 = default for engine class, 1 = steam, 2 = diesel, 3 = electric)
* bit 6 = disable visual effect.
* bit 7 = disable powered wagons.
*/
byte cached_vis_effect;
byte user_def_data;
/* NOSAVE: for wagon override - id of the first engine in train
* 0xffff == not in train */
EngineID first_engine;
uint16 flags;
TrackBitsByte track;
byte force_proceed;
RailTypeByte railtype;
RailTypes compatible_railtypes;
};
enum VehicleRailFlags {
VRF_REVERSING = 0,
/* used to calculate if train is going up or down */
VRF_GOINGUP = 1,
VRF_GOINGDOWN = 2,
/* used to store if a wagon is powered or not */
VRF_POWEREDWAGON = 3,
/* used to reverse the visible direction of the vehicle */
VRF_REVERSE_DIRECTION = 4,
/* used to mark train as lost because PF can't find the route */
VRF_NO_PATH_TO_DESTINATION = 5,
/* used to mark that electric train engine is allowed to run on normal rail */
VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL = 6,
/* used for vehicle var 0xFE bit 8 (toggled each time the train is reversed, accurate for first vehicle only) */
VRF_TOGGLE_REVERSE = 7,
/* used to mark a train that can't get a path reservation */
VRF_TRAIN_STUCK = 8,
};
struct VehicleAir {
uint16 crashed_counter;
uint16 cached_max_speed;
byte pos;
byte previous_pos;
StationID targetairport;
byte state;
};
struct VehicleRoad {
byte state; ///< @see RoadVehicleStates
byte frame;
uint16 blocked_ctr;
byte overtaking;
byte overtaking_ctr;
uint16 crashed_ctr;
byte reverse_ctr;
struct RoadStop *slot;
byte slot_age;
EngineID first_engine;
byte cached_veh_length;
RoadType roadtype;
RoadTypes compatible_roadtypes;
};
struct VehicleEffect {
uint16 animation_state;
byte animation_substate;
};
struct VehicleDisaster {
uint16 image_override;
VehicleID big_ufo_destroyer_target;
};
struct VehicleShip {
TrackBitsByte state;
};
DECLARE_OLD_POOL(Vehicle, Vehicle, 9, 125)
/* Some declarations of functions, so we can make them friendly */
struct SaveLoad;
extern const SaveLoad *GetVehicleDescription(VehicleType vt);
struct LoadgameState;
extern bool LoadOldVehicle(LoadgameState *ls, int num);
struct Vehicle : PoolItem<Vehicle, VehicleID, &_Vehicle_pool>, BaseVehicle {
private:
Vehicle *next; ///< pointer to the next vehicle in the chain
Vehicle *previous; ///< NOSAVE: pointer to the previous vehicle in the chain
Vehicle *first; ///< NOSAVE: pointer to the first vehicle in the chain
Vehicle *next_shared; ///< pointer to the next vehicle that shares the order
Vehicle *previous_shared; ///< NOSAVE: pointer to the previous vehicle in the shared order chain
public:
friend const SaveLoad *GetVehicleDescription(VehicleType vt); ///< So we can use private/protected variables in the saveload code
friend void AfterLoadVehicles(bool part_of_load); ///< So we can set the previous and first pointers while loading
friend bool LoadOldVehicle(LoadgameState *ls, int num); ///< So we can set the proper next pointer while loading
char *name; ///< Name of vehicle
TileIndex tile; ///< Current tile index
/**
* Heading for this tile.
* For airports and train stations this tile does not necessarily belong to the destination station,
* but it can be used for heuristical purposes to estimate the distance.
*/
TileIndex dest_tile;
Money profit_this_year; ///< Profit this year << 8, low 8 bits are fract
Money profit_last_year; ///< Profit last year << 8, low 8 bits are fract
Money value;
/* Used for timetabling. */
uint32 current_order_time; ///< How many ticks have passed since this order started.
int32 lateness_counter; ///< How many ticks late (or early if negative) this vehicle is.
/* Boundaries for the current position in the world and a next hash link.
* NOSAVE: All of those can be updated with VehiclePositionChanged() */
Rect coord;
Vehicle *next_hash;
Vehicle *next_new_hash;
Vehicle **old_new_hash;
SpriteID colourmap; // NOSAVE: cached colour mapping
/* Related to age and service time */
Year build_year;
Date age; // Age in days
Date max_age; // Maximum age
Date date_of_last_service;
Date service_interval;
uint16 reliability;
uint16 reliability_spd_dec;
byte breakdown_ctr;
byte breakdown_delay;
byte breakdowns_since_last_service;
byte breakdown_chance;
int32 x_pos; // coordinates
int32 y_pos;
byte z_pos;
DirectionByte direction; // facing
OwnerByte owner; // which company owns the vehicle?
byte spritenum; // currently displayed sprite index
// 0xfd == custom sprite, 0xfe == custom second head sprite
// 0xff == reserved for another custom sprite
uint16 cur_image; // sprite number for this vehicle
byte x_extent; // x-extent of vehicle bounding box
byte y_extent; // y-extent of vehicle bounding box
byte z_extent; // z-extent of vehicle bounding box
int8 x_offs; // x offset for vehicle sprite
int8 y_offs; // y offset for vehicle sprite
EngineID engine_type;
TextEffectID fill_percent_te_id; // a text-effect id to a loading indicator object
UnitID unitnumber; // unit number, for display purposes only
uint16 max_speed; ///< maximum speed
uint16 cur_speed; ///< current speed
byte subspeed; ///< fractional speed
byte acceleration; ///< used by train & aircraft
uint32 motion_counter;
byte progress;
/* for randomized variational spritegroups
* bitmask used to resolve them; parts of it get reseeded when triggers
* of corresponding spritegroups get matched */
byte random_bits;
byte waiting_triggers; ///< triggers to be yet matched
StationID last_station_visited;
CargoID cargo_type; ///< type of cargo this vehicle is carrying
byte cargo_subtype; ///< Used for livery refits (NewGRF variations)
uint16 cargo_cap; ///< total capacity
CargoList cargo; ///< The cargo this vehicle is carrying
byte day_counter; ///< Increased by one for each day
byte tick_counter; ///< Increased by one for each tick
byte running_ticks; ///< Number of ticks this vehicle was not stopped this day
byte vehstatus; ///< Status
Order current_order; ///< The current order (+ status, like: loading)
VehicleOrderID cur_order_index; ///< The index to the current order
union {
OrderList *list; ///< Pointer to the order list for this vehicle
Order *old; ///< Only used during conversion of old save games
} orders;
byte vehicle_flags; ///< Used for gradual loading and other miscellaneous things (@see VehicleFlags enum)
uint16 load_unload_time_rem;
GroupID group_id; ///< Index of group Pool array
byte subtype; ///< subtype (Filled with values from EffectVehicles/TrainSubTypes/AircraftSubTypes)
union {
VehicleRail rail;
VehicleAir air;
VehicleRoad road;
VehicleEffect effect;
VehicleDisaster disaster;
VehicleShip ship;
} u;
/* cached oftenly queried NewGRF values */
uint8 cache_valid; ///< Whether the caches are valid
uint32 cached_var40; ///< Cache for NewGRF var 40
uint32 cached_var41; ///< Cache for NewGRF var 41
uint32 cached_var42; ///< Cache for NewGRF var 42
uint32 cached_var43; ///< Cache for NewGRF var 43
/** Create a new vehicle */
Vehicle();
/** Destroy all stuff that (still) needs the virtual functions to work properly */
void PreDestructor();
/** We want to 'destruct' the right class. */
virtual ~Vehicle();
void BeginLoading();
void LeaveStation();
/**
* Handle the loading of the vehicle; when not it skips through dummy
* orders and does nothing in all other cases.
* @param mode is the non-first call for this vehicle in this tick?
*/
void HandleLoading(bool mode = false);
/**
* Get a string 'representation' of the vehicle type.
* @return the string representation.
*/
virtual const char *GetTypeString() const { return "base vehicle"; }
/**
* Marks the vehicles to be redrawn and updates cached variables
*
* This method marks the area of the vehicle on the screen as dirty.
* It can be use to repaint the vehicle.
*
* @ingroup dirty
*/
virtual void MarkDirty() {}
/**
* Updates the x and y offsets and the size of the sprite used
* for this vehicle.
* @param direction the direction the vehicle is facing
*/
virtual void UpdateDeltaXY(Direction direction) {}
/**
* Sets the expense type associated to this vehicle type
* @param income whether this is income or (running) expenses of the vehicle
*/
virtual ExpensesType GetExpenseType(bool income) const { return EXPENSES_OTHER; }
/**
* Play the sound associated with leaving the station
*/
virtual void PlayLeaveStationSound() const {}
/**
* Whether this is the primary vehicle in the chain.
*/
virtual bool IsPrimaryVehicle() const { return false; }
/**
* Gets the sprite to show for the given direction
* @param direction the direction the vehicle is facing
* @return the sprite for the given vehicle in the given direction
*/
virtual SpriteID GetImage(Direction direction) const { return 0; }
/**
* Gets the speed in km-ish/h that can be sent into SetDParam for string processing.
* @return the vehicle's speed
*/
virtual int GetDisplaySpeed() const { return 0; }
/**
* Gets the maximum speed in km-ish/h that can be sent into SetDParam for string processing.
* @return the vehicle's maximum speed
*/
virtual int GetDisplayMaxSpeed() const { return 0; }
/**
* Gets the running cost of a vehicle
* @return the vehicle's running cost
*/
virtual Money GetRunningCost() const { return 0; }
/**
* Check whether the vehicle is in the depot.
* @return true if and only if the vehicle is in the depot.
*/
virtual bool IsInDepot() const { return false; }
/**
* Check whether the vehicle is in the depot *and* stopped.
* @return true if and only if the vehicle is in the depot and stopped.
*/
virtual bool IsStoppedInDepot() const { return this->IsInDepot() && (this->vehstatus & VS_STOPPED) != 0; }
/**
* Calls the tick handler of the vehicle
* @return is this vehicle still valid?
*/
virtual bool Tick() { return true; };
/**
* Calls the new day handler of the vehicle
*/
virtual void OnNewDay() {};
/**
* Gets the running cost of a vehicle that can be sent into SetDParam for string processing.
* @return the vehicle's running cost
*/
Money GetDisplayRunningCost() const { return (this->GetRunningCost() >> 8); }
/**
* Gets the profit vehicle had this year. It can be sent into SetDParam for string processing.
* @return the vehicle's profit this year
*/
Money GetDisplayProfitThisYear() const { return (this->profit_this_year >> 8); }
/**
* Gets the profit vehicle had last year. It can be sent into SetDParam for string processing.
* @return the vehicle's profit last year
*/
Money GetDisplayProfitLastYear() const { return (this->profit_last_year >> 8); }
/**
* Set the next vehicle of this vehicle.
* @param next the next vehicle. NULL removes the next vehicle.
*/
void SetNext(Vehicle *next);
/**
* Get the next vehicle of this vehicle.
* @note articulated parts are also counted as vehicles.
* @return the next vehicle or NULL when there isn't a next vehicle.
*/
inline Vehicle *Next() const { return this->next; }
/**
* Get the previous vehicle of this vehicle.
* @note articulated parts are also counted as vehicles.
* @return the previous vehicle or NULL when there isn't a previous vehicle.
*/
inline Vehicle *Previous() const { return this->previous; }
/**
* Get the first vehicle of this vehicle chain.
* @return the first vehicle of the chain.
*/
inline Vehicle *First() const { return this->first; }
/**
* Get the first order of the vehicles order list.
* @return first order of order list.
*/
inline Order *GetFirstOrder() const { return (this->orders.list == NULL) ? NULL : this->orders.list->GetFirstOrder(); }
/**
* Adds this vehicle to a shared vehicle chain.
* @param shared_chain a vehicle of the chain with shared vehicles.
* @pre !this->IsOrderListShared()
*/
void AddToShared(Vehicle *shared_chain);
/**
* Removes the vehicle from the shared order list.
*/
void RemoveFromShared();
/**
* Get the next vehicle of the shared vehicle chain.
* @return the next shared vehicle or NULL when there isn't a next vehicle.
*/
inline Vehicle *NextShared() const { return this->next_shared; }
/**
* Get the previous vehicle of the shared vehicle chain
* @return the previous shared vehicle or NULL when there isn't a previous vehicle.
*/
inline Vehicle *PreviousShared() const { return this->previous_shared; }
/**
* Get the first vehicle of this vehicle chain.
* @return the first vehicle of the chain.
*/
inline Vehicle *FirstShared() const { return (this->orders.list == NULL) ? this->First() : this->orders.list->GetFirstSharedVehicle(); }
/**
* Check if we share our orders with another vehicle.
* @return true if there are other vehicles sharing the same order
*/
inline bool IsOrderListShared() const { return this->orders.list != NULL && this->orders.list->IsShared(); }
/**
* Get the number of orders this vehicle has.
* @return the number of orders this vehicle has.
*/
inline VehicleOrderID GetNumOrders() const { return (this->orders.list == NULL) ? 0 : this->orders.list->GetNumOrders(); }
/**
* Copy certain configurations and statistics of a vehicle after successful autoreplace/renew
* The function shall copy everything that cannot be copied by a command (like orders / group etc),
* and that shall not be resetted for the new vehicle.
* @param src The old vehicle
*/
inline void CopyVehicleConfigAndStatistics(const Vehicle *src)
{
this->unitnumber = src->unitnumber;
this->cur_order_index = src->cur_order_index;
this->current_order = src->current_order;
this->dest_tile = src->dest_tile;
this->profit_this_year = src->profit_this_year;
this->profit_last_year = src->profit_last_year;
this->current_order_time = src->current_order_time;
this->lateness_counter = src->lateness_counter;
this->service_interval = src->service_interval;
}
bool NeedsAutorenewing(const Company *c) const;
/**
* Check if the vehicle needs to go to a depot in near future (if a opportunity presents itself) for service or replacement.
*
* @see NeedsAutomaticServicing()
* @return true if the vehicle should go to a depot if a opportunity presents itself.
*/
bool NeedsServicing() const;
/**
* Checks if the current order should be interupted for a service-in-depot-order.
* @see NeedsServicing()
* @return true if the current order should be interupted.
*/
bool NeedsAutomaticServicing() const;
/**
* Determine the location for the station where the vehicle goes to next.
* Things done for example are allocating slots in a road stop or exact
* location of the platform is determined for ships.
* @param station the station to make the next location of the vehicle.
* @return the location (tile) to aim for.
*/
virtual TileIndex GetOrderStationLocation(StationID station) { return INVALID_TILE; }
/**
* Find the closest depot for this vehicle and tell us the location,
* DestinationID and whether we should reverse.
* @param location where do we go to?
* @param destination what hangar do we go to?
* @param reverse should the vehicle be reversed?
* @return true if a depot could be found.
*/
virtual bool FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse) { return false; }
/**
* Send this vehicle to the depot using the given command(s).
* @param flags the command flags (like execute and such).
* @param command the command to execute.
* @return the cost of the depot action.
*/
CommandCost SendToDepot(DoCommandFlag flags, DepotCommand command);
/**
* Increments cur_order_index, keeps care of the wrap-around and invalidates the GUI.
* Note: current_order is not invalidated.
*/
void IncrementOrderIndex()
{
this->cur_order_index++;
if (this->cur_order_index >= this->GetNumOrders()) this->cur_order_index = 0;
InvalidateVehicleOrder(this, 0);
}
};
/**
* This class 'wraps' Vehicle; you do not actually instantiate this class.
* You create a Vehicle using AllocateVehicle, so it is added to the pool
* and you reinitialize that to a Train using:
* v = new (v) Train();
*
* As side-effect the vehicle type is set correctly.
*/
struct DisasterVehicle : public Vehicle {
/** Initializes the Vehicle to a disaster vehicle */
DisasterVehicle() { this->type = VEH_DISASTER; }
/** We want to 'destruct' the right class. */
virtual ~DisasterVehicle() {}
const char *GetTypeString() const { return "disaster vehicle"; }
void UpdateDeltaXY(Direction direction);
bool Tick();
};
/**
* This class 'wraps' Vehicle; you do not actually instantiate this class.
* You create a Vehicle using AllocateVehicle, so it is added to the pool
* and you reinitialize that to a Train using:
* v = new (v) Train();
*
* As side-effect the vehicle type is set correctly.
*/
struct InvalidVehicle : public Vehicle {
/** Initializes the Vehicle to a invalid vehicle */
InvalidVehicle() { this->type = VEH_INVALID; }
/** We want to 'destruct' the right class. */
virtual ~InvalidVehicle() {}
const char *GetTypeString() const { return "invalid vehicle"; }
};
#define FOR_ALL_VEHICLES_FROM(var, start) FOR_ALL_ITEMS_FROM(Vehicle, vehicle_index, var, start)
#define FOR_ALL_VEHICLES(var) FOR_ALL_VEHICLES_FROM(var, 0)
/** Generates sequence of free UnitID numbers */
struct FreeUnitIDGenerator {
bool *cache; ///< array of occupied unit id numbers
UnitID maxid; ///< maximum ID at the moment of constructor call
UnitID curid; ///< last ID returned ; 0 if none
/** Initializes the structure. Vehicle unit numbers are supposed not to change after
* struct initialization, except after each call to this->NextID() the returned value
* is assigned to a vehicle.
* @param type type of vehicle
* @param owner owner of vehicles
*/
FreeUnitIDGenerator(VehicleType type, CompanyID owner);
/** Returns next free UnitID. Supposes the last returned value was assigned to a vehicle. */
UnitID NextID();
/** Releases allocated memory */
~FreeUnitIDGenerator() { free(this->cache); }
};
/* Returns order 'index' of a vehicle or NULL when it doesn't exists */
static inline Order *GetVehicleOrder(const Vehicle *v, int index) { return (v->orders.list == NULL) ? NULL : v->orders.list->GetOrderAt(index); }
/**
* Returns the last order of a vehicle, or NULL if it doesn't exists
* @param v Vehicle to query
* @return last order of a vehicle, if available
*/
static inline Order *GetLastVehicleOrder(const Vehicle *v) { return (v->orders.list == NULL) ? NULL : v->orders.list->GetLastOrder(); }
/**
* Returns the Trackdir on which the vehicle is currently located.
* Works for trains and ships.
* Currently works only sortof for road vehicles, since they have a fuzzy
* concept of being "on" a trackdir. Dunno really what it returns for a road
* vehicle that is halfway a tile, never really understood that part. For road
* vehicles that are at the beginning or end of the tile, should just return
* the diagonal trackdir on which they are driving. I _think_.
* For other vehicles types, or vehicles with no clear trackdir (such as those
* in depots), returns 0xFF.
*/
Trackdir GetVehicleTrackdir(const Vehicle *v);
void CheckVehicle32Day(Vehicle *v);
static const int32 INVALID_COORD = 0x7fffffff;
#endif /* VEHICLE_BASE_H */
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