GroundVehicle< T, Type > Struct Template Reference

Base class for all vehicles that move through ground. More...

#include <ground_vehicle.hpp>

Inheritance diagram for GroundVehicle< T, Type >:
SpecializedVehicle< T, Type > Vehicle Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tcache, Tzero >::PoolItem<&_vehicle_pool > BaseVehicle

Public Types

enum  GroundVehicleSubtypeFlags {
  GVSF_FRONT = 0, GVSF_ARTICULATED_PART = 1, GVSF_WAGON = 2, GVSF_ENGINE = 3,
  GVSF_FREE_WAGON = 4, GVSF_MULTIHEADED = 5
}
 

Enum to handle ground vehicle subtypes.

More...

Public Member Functions

 GroundVehicle ()
 The constructor at SpecializedVehicle must be called.
void PowerChanged ()
 Recalculates the cached total power of a vehicle.
void CargoChanged ()
 Recalculates the cached weight of a vehicle and its parts.
int GetAcceleration () const
 Calculates the acceleration of the vehicle under its current conditions.
FORCEINLINE int32 GetSlopeResistance () const
 Calculates the total slope resistance for this vehicle.
FORCEINLINE byte UpdateInclination (bool new_tile, bool turned)
 Checks if the vehicle is in a slope and sets the required flags in that case.
FORCEINLINE void SetFrontEngine ()
 Set front engine state.
FORCEINLINE void ClearFrontEngine ()
 Remove the front engine state.
FORCEINLINE void SetArticulatedPart ()
 Set a vehicle to be an articulated part.
FORCEINLINE void ClearArticulatedPart ()
 Clear a vehicle from being an articulated part.
FORCEINLINE void SetWagon ()
 Set a vehicle to be a wagon.
FORCEINLINE void ClearWagon ()
 Clear wagon property.
FORCEINLINE void SetEngine ()
 Set engine status.
FORCEINLINE void ClearEngine ()
 Clear engine status.
FORCEINLINE void SetFreeWagon ()
 Set a vehicle as a free wagon.
FORCEINLINE void ClearFreeWagon ()
 Clear a vehicle from being a free wagon.
FORCEINLINE void SetMultiheaded ()
 Set a vehicle as a multiheaded engine.
FORCEINLINE void ClearMultiheaded ()
 Clear multiheaded engine property.
FORCEINLINE bool IsFrontEngine () const
 Check if the vehicle is a front engine.
FORCEINLINE bool IsFreeWagon () const
 Check if the vehicle is a free wagon (got no engine in front of it).
FORCEINLINE bool IsEngine () const
 Check if a vehicle is an engine (can be first in a consist).
FORCEINLINE bool IsWagon () const
 Check if a vehicle is a wagon.
FORCEINLINE bool IsMultiheaded () const
 Check if the vehicle is a multiheaded engine.
FORCEINLINE bool IsRearDualheaded () const
 Tell if we are dealing with the rear end of a multiheaded engine.
FORCEINLINE bool IsArticulatedPart () const
 Check if the vehicle is an articulated part of an engine.
FORCEINLINE bool HasArticulatedPart () const
 Check if an engine has an articulated part.

Data Fields

GroundVehicleCache gcache
 Cache of often calculated values.
uint16 gv_flags

Detailed Description

template<class T, VehicleType Type>
struct GroundVehicle< T, Type >

Base class for all vehicles that move through ground.

Child classes must define all of the following functions. These functions are not defined as pure virtual functions at this class to improve performance.

virtual uint16 GetPower() const = 0; virtual uint16 GetPoweredPartPower(const T *head) const = 0; virtual uint16 GetWeight() const = 0; virtual byte GetTractiveEffort() const = 0; virtual byte GetAirDrag() const = 0; virtual byte GetAirDragArea() const = 0; virtual AccelStatus GetAccelerationStatus() const = 0; virtual uint16 GetCurrentSpeed() const = 0; virtual uint32 GetRollingFriction() const = 0; virtual int GetAccelerationType() const = 0; virtual int32 GetSlopeSteepness() const = 0; virtual int GetDisplayMaxSpeed() const = 0; virtual uint16 GetMaxTrackSpeed() const = 0; virtual bool TileMayHaveSlopedTrack() const = 0;

Definition at line 74 of file ground_vehicle.hpp.


Member Enumeration Documentation

template<class T, VehicleType Type>
enum GroundVehicle::GroundVehicleSubtypeFlags

Enum to handle ground vehicle subtypes.

Do not access it directly unless you have to. Use the subtype access functions.

Enumerator:
GVSF_FRONT 

Leading engine of a consist.

GVSF_ARTICULATED_PART 

Articulated part of an engine.

GVSF_WAGON 

Wagon (not used for road vehicles).

GVSF_ENGINE 

Engine that can be front engine, but might be placed behind another engine (not used for road vehicles).

GVSF_FREE_WAGON 

First in a wagon chain (in depot) (not used for road vehicles).

GVSF_MULTIHEADED 

Engine is multiheaded (not used for road vehicles).

Definition at line 157 of file ground_vehicle.hpp.


Member Function Documentation

template<class T , VehicleType Type>
void GroundVehicle< T, Type >::CargoChanged (  )  [inline]
template<class T , VehicleType Type>
int GroundVehicle< T, Type >::GetAcceleration (  )  const [inline]
template<class T, VehicleType Type>
FORCEINLINE int32 GroundVehicle< T, Type >::GetSlopeResistance (  )  const [inline]

Calculates the total slope resistance for this vehicle.

Returns:
Slope resistance.

Definition at line 91 of file ground_vehicle.hpp.

Referenced by GroundVehicle< T, Type >::GetAcceleration().

template<class T, VehicleType Type>
FORCEINLINE bool GroundVehicle< T, Type >::HasArticulatedPart (  )  const [inline]
template<class T, VehicleType Type>
FORCEINLINE bool GroundVehicle< T, Type >::IsArticulatedPart (  )  const [inline]
template<class T, VehicleType Type>
FORCEINLINE bool GroundVehicle< T, Type >::IsEngine (  )  const [inline]

Check if a vehicle is an engine (can be first in a consist).

Returns:
Returns true if vehicle is an engine.

Definition at line 242 of file ground_vehicle.hpp.

Referenced by AfterLoadVehicles(), CheckNewTrain(), CheckTrainAttachment(), CmdMoveRailVehicle(), CmdSellRailWagon(), GroundVehicle< RoadVehicle, VEH_ROAD >::IsRearDualheaded(), NormaliseDualHeads(), and NormaliseSubtypes().

template<class T, VehicleType Type>
FORCEINLINE bool GroundVehicle< T, Type >::IsFreeWagon (  )  const [inline]

Check if the vehicle is a free wagon (got no engine in front of it).

Returns:
Returns true if the vehicle is a free wagon.

Definition at line 236 of file ground_vehicle.hpp.

Referenced by AfterLoadVehicles(), BuildDepotVehicleList(), CmdBuildRailWagon(), DepotWindow::DrawVehicleInDepot(), NormalizeTrainVehInDepot(), and UpdateTrainGroupID().

template<class T, VehicleType Type>
FORCEINLINE bool GroundVehicle< T, Type >::IsFrontEngine (  )  const [inline]
template<class T, VehicleType Type>
FORCEINLINE bool GroundVehicle< T, Type >::IsMultiheaded (  )  const [inline]

Check if the vehicle is a multiheaded engine.

Returns:
Returns true if the vehicle is a multiheaded engine.

Definition at line 254 of file ground_vehicle.hpp.

Referenced by ArrangeTrains(), CmdReverseTrainDirection(), Train::GetRunningCost(), GroundVehicle< RoadVehicle, VEH_ROAD >::IsRearDualheaded(), and NormaliseDualHeads().

template<class T, VehicleType Type>
FORCEINLINE bool GroundVehicle< T, Type >::IsRearDualheaded (  )  const [inline]

Tell if we are dealing with the rear end of a multiheaded engine.

Returns:
True if the engine is the rear part of a dualheaded engine.

Definition at line 260 of file ground_vehicle.hpp.

Referenced by BuildDepotVehicleList(), CheckTrainAttachment(), CmdAutoreplaceVehicle(), CmdCloneVehicle(), CmdMoveRailVehicle(), CmdSellRailWagon(), GetNewEngineType(), Train::GetNextUnit(), Train::GetPrevUnit(), Vehicle::IsEngineCountable(), and ReplaceFreeUnit().

template<class T, VehicleType Type>
FORCEINLINE bool GroundVehicle< T, Type >::IsWagon (  )  const [inline]

Check if a vehicle is a wagon.

Returns:
Returns true if vehicle is a wagon.

Definition at line 248 of file ground_vehicle.hpp.

Referenced by NormaliseSubtypes().

template<class T , VehicleType Type>
void GroundVehicle< T, Type >::PowerChanged (  )  [inline]
template<class T, VehicleType Type>
FORCEINLINE byte GroundVehicle< T, Type >::UpdateInclination ( bool  new_tile,
bool  turned 
) [inline]

Checks if the vehicle is in a slope and sets the required flags in that case.

Parameters:
new_tile True if the vehicle reached a new tile.
turned Indicates if the vehicle has turned.
Returns:
Old height of the vehicle.

Definition at line 112 of file ground_vehicle.hpp.


Field Documentation

template<class T, VehicleType Type>
uint16 GroundVehicle< T, Type >::gv_flags

The documentation for this struct was generated from the following files:

Generated on Thu Jan 20 22:58:28 2011 for OpenTTD by  doxygen 1.6.1