Road specific functions. More...

#include "road_type.h"
#include "gfx_type.h"
#include "core/bitmath_func.hpp"
#include "strings_type.h"
#include "timer/timer_game_calendar.h"
#include "core/enum_type.hpp"
#include "newgrf.h"
#include "economy_func.h"

Data Structures
class	RoadTypeInfo

Typedefs
typedef std::vector< RoadTypeLabel >	RoadTypeLabelList
	List of road type labels.

Enumerations
enum	RoadTramType : bool { RTT_ROAD , RTT_TRAM }

enum	RoadTramTypes : uint8_t { RTTB_ROAD = 1 << RTT_ROAD , RTTB_TRAM = 1 << RTT_TRAM }

enum	RoadTypeFlag { ROTF_CATENARY = 0 , ROTF_NO_LEVEL_CROSSING , ROTF_NO_HOUSES , ROTF_HIDDEN , ROTF_TOWN_BUILD }
	Roadtype flag bit numbers. More...

enum	RoadTypeFlags : uint8_t { ROTFB_NONE = 0 , ROTFB_CATENARY = 1 << ROTF_CATENARY , ROTFB_NO_LEVEL_CROSSING = 1 << ROTF_NO_LEVEL_CROSSING , ROTFB_NO_HOUSES = 1 << ROTF_NO_HOUSES , ROTFB_HIDDEN = 1 << ROTF_HIDDEN , ROTFB_TOWN_BUILD = 1 << ROTF_TOWN_BUILD }
	Roadtype flags. More...

enum	RoadTypeSpriteGroup { ROTSG_CURSORS , ROTSG_OVERLAY , ROTSG_GROUND , ROTSG_TUNNEL , ROTSG_CATENARY_FRONT , ROTSG_CATENARY_BACK , ROTSG_BRIDGE , ROTSG_reserved2 , ROTSG_DEPOT , ROTSG_reserved3 , ROTSG_ROADSTOP , ROTSG_ONEWAY , ROTSG_END }
	Sprite groups for a roadtype. More...

Functions
bool	RoadTypeIsRoad (RoadType roadtype)

bool	RoadTypeIsTram (RoadType roadtype)

RoadTramType	GetRoadTramType (RoadType roadtype)

RoadTramType	OtherRoadTramType (RoadTramType rtt)

const RoadTypeInfo *	GetRoadTypeInfo (RoadType roadtype)
	Returns a pointer to the Roadtype information for a given roadtype. More...

bool	HasPowerOnRoad (RoadType enginetype, RoadType tiletype)
	Checks if an engine of the given RoadType got power on a tile with a given RoadType. More...

Money	RoadBuildCost (RoadType roadtype)
	Returns the cost of building the specified roadtype. More...

Money	RoadClearCost (RoadType roadtype)
	Returns the cost of clearing the specified roadtype. More...

Money	RoadConvertCost (RoadType from, RoadType to)
	Calculates the cost of road conversion. More...

bool	RoadNoLevelCrossing (RoadType roadtype)
	Test if road disallows level crossings. More...

RoadType	GetRoadTypeByLabel (RoadTypeLabel label, bool allow_alternate_labels=true)
	Get the road type for a given label. More...

void	ResetRoadTypes ()
	Reset all road type information to its default values.

void	InitRoadTypes ()
	Resolve sprites of custom road types.

RoadType	AllocateRoadType (RoadTypeLabel label, RoadTramType rtt)
	Allocate a new road type label.

bool	HasAnyRoadTypesAvail (CompanyID company, RoadTramType rtt)
	Test if any buildable RoadType is available for a company. More...

Variables
static const RoadTramType	_roadtramtypes [] = { RTT_ROAD, RTT_TRAM }

RoadTypes	_roadtypes_type
	Bitmap of road/tram types. More...

std::vector< RoadType >	_sorted_roadtypes

RoadTypes	_roadtypes_hidden_mask

Detailed Description

Road specific functions.

Definition in file road.h.

Enumeration Type Documentation

◆ RoadTypeFlag

enum RoadTypeFlag

Roadtype flag bit numbers.

Starts with RO instead of R because R is used for rails

Enumerator
ROTF_CATENARY	Bit number for adding catenary.
ROTF_NO_LEVEL_CROSSING	Bit number for disabling level crossing.
ROTF_NO_HOUSES	Bit number for setting this roadtype as not house friendly.
ROTF_HIDDEN	Bit number for hidden from construction.
ROTF_TOWN_BUILD	Bit number for allowing towns to build this roadtype.

Definition at line 37 of file road.h.

◆ RoadTypeFlags

enum RoadTypeFlags : uint8_t

Roadtype flags.

Starts with RO instead of R because R is used for rails

Enumerator
ROTFB_NONE	All flags cleared.
ROTFB_CATENARY	Value for drawing a catenary.
ROTFB_NO_LEVEL_CROSSING	Value for disabling a level crossing.
ROTFB_NO_HOUSES	Value for for setting this roadtype as not house friendly.
ROTFB_HIDDEN	Value for hidden from construction.
ROTFB_TOWN_BUILD	Value for allowing towns to build this roadtype.

Definition at line 46 of file road.h.

◆ RoadTypeSpriteGroup

enum RoadTypeSpriteGroup

Sprite groups for a roadtype.

Enumerator
ROTSG_CURSORS	Optional: Cursor and toolbar icon images.
ROTSG_OVERLAY	Optional: Images for overlaying track.
ROTSG_GROUND	Required: Main group of ground images.
ROTSG_TUNNEL	Optional: Ground images for tunnels.
ROTSG_CATENARY_FRONT	Optional: Catenary front.
ROTSG_CATENARY_BACK	Optional: Catenary back.
ROTSG_BRIDGE	Required: Bridge surface images.
ROTSG_reserved2	Placeholder, if we need specific level crossing sprites.
ROTSG_DEPOT	Optional: Depot images.
ROTSG_reserved3	Placeholder, if we add road fences (for highways).
ROTSG_ROADSTOP	Required: Bay stop surface.
ROTSG_ONEWAY	Optional: One-way indicator images.

Definition at line 59 of file road.h.

Function Documentation

◆ GetRoadTypeByLabel()

RoadType GetRoadTypeByLabel	(	RoadTypeLabel	label,
		bool	allow_alternate_labels
	)

Get the road type for a given label.

Parameters

label	the roadtype label.
allow_alternate_labels	Search in the alternate label lists as well.

Returns: the roadtype.

Definition at line 254 of file road.cpp.

References RoadTypeInfo::alternate_labels, GetRoadTypeInfo(), INVALID_ROADTYPE, RoadTypeInfo::label, ROADTYPE_BEGIN, and ROADTYPE_END.

Referenced by RoadTypeResolverObject::GetFeature().

◆ GetRoadTypeInfo()

const RoadTypeInfo* GetRoadTypeInfo ( RoadType roadtype )

inline

Returns a pointer to the Roadtype information for a given roadtype.

Parameters

roadtype the road type which the information is requested for

Returns: The pointer to the RoadTypeInfo

Definition at line 227 of file road.h.

Referenced by AddDateIntroducedRoadTypes(), AfterLoadVehiclesPhase2(), CheckAutoreplaceValidity(), CmdBuildRoadVehicle(), GetCompanyRoadTypes(), GetRoadTypeByLabel(), GetRoadTypes(), HasPowerOnRoad(), HasRoadCatenary(), IsEngineBuildable(), NewVehicleAvailable(), BuildRoadToolbarWindow::OnInit(), RoadNoLevelCrossing(), and ROTTChunkHandler::Save().

◆ HasAnyRoadTypesAvail()

bool HasAnyRoadTypesAvail	(	CompanyID	company,
		RoadTramType	rtt
	)

Test if any buildable RoadType is available for a company.

Parameters

company the company in question

Returns: true if company has any RoadTypes available

Definition at line 143 of file road.cpp.

References Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem<&_company_pool >::Get().

Referenced by CanBuildVehicleInfrastructure().

◆ HasPowerOnRoad()

bool HasPowerOnRoad	(	RoadType	enginetype,
		RoadType	tiletype
	)

inline

Checks if an engine of the given RoadType got power on a tile with a given RoadType.

This would normally just be an equality check, but for electrified roads (which also support non-electric vehicles).

Parameters

enginetype	The RoadType of the engine we are considering.
tiletype	The RoadType of the tile we are considering.

Returns: Whether the engine got power on this tile.

Definition at line 242 of file road.h.

References GetRoadTypeInfo(), and HasBit().

◆ RoadBuildCost()

Money RoadBuildCost ( RoadType roadtype )

inline

Returns the cost of building the specified roadtype.

Parameters

roadtype The roadtype being built.

Returns: The cost multiplier.

Definition at line 252 of file road.h.

References ROADTYPE_END.

Referenced by RoadConvertCost().

◆ RoadClearCost()

Money RoadClearCost ( RoadType roadtype )

inline

Returns the cost of clearing the specified roadtype.

Parameters

roadtype The roadtype being removed.

Returns: The cost.

Definition at line 263 of file road.h.

References ROADTYPE_END.

Referenced by RoadConvertCost().

◆ RoadConvertCost()

Money RoadConvertCost	(	RoadType	from,
		RoadType	to
	)

inline

Calculates the cost of road conversion.

Parameters

from	The roadtype we are converting from
to	The roadtype we are converting to

Returns: Cost per RoadBit

Definition at line 281 of file road.h.

References RoadBuildCost(), and RoadClearCost().

◆ RoadNoLevelCrossing()

bool RoadNoLevelCrossing ( RoadType roadtype )

inline

Test if road disallows level crossings.

Parameters

roadtype The roadtype we are testing

Returns: True iff the roadtype disallows level crossings

Definition at line 295 of file road.h.

References GetRoadTypeInfo(), HasBit(), ROADTYPE_END, and ROTF_NO_LEVEL_CROSSING.

Variable Documentation

◆ _roadtypes_type

RoadTypes _roadtypes_type

extern

Bitmap of road/tram types.

Bit if set if a roadtype is tram.

Definition at line 62 of file road_cmd.cpp.

Referenced by ScenarioEditorToolbarWindow::OnPaint().

Data Structures

Typedefs

Enumerations

Functions

Variables

Detailed Description

Enumeration Type Documentation

◆ RoadTypeFlag

◆ RoadTypeFlags

◆ RoadTypeSpriteGroup

Function Documentation

◆ GetRoadTypeByLabel()

◆ GetRoadTypeInfo()

◆ HasAnyRoadTypesAvail()

◆ HasPowerOnRoad()

◆ RoadBuildCost()

◆ RoadClearCost()

◆ RoadConvertCost()

◆ RoadNoLevelCrossing()

Variable Documentation

◆ _roadtypes_type