newgrf_railtype.h File Reference

NewGRF handling of rail types. More...

#include "rail.h"
#include "newgrf_commons.h"
#include "newgrf_spritegroup.h"

Go to the source code of this file.

Data Structures
struct	RailTypeScopeResolver
	Resolver for the railtype scope. More...
struct	RailTypeResolverObject
	Resolver object for rail types. More...

Functions
SpriteID	GetCustomRailSprite (const RailTypeInfo *rti, TileIndex tile, RailTypeSpriteGroup rtsg, TileContext context=TCX_NORMAL, uint *num_results=nullptr)
	Get the sprite to draw for the given tile.
SpriteID	GetCustomSignalSprite (const RailTypeInfo *rti, TileIndex tile, SignalType type, SignalVariant var, SignalState state, bool gui=false)
	Get the sprite to draw for a given signal.
RailType	GetRailTypeTranslation (uint8_t railtype, const GRFFile *grffile)
	Translate an index to the GRF-local railtype-translation table into a RailType.
uint8_t	GetReverseRailTypeTranslation (RailType railtype, const GRFFile *grffile)
	Perform a reverse railtype lookup to get the GRF internal ID.

Detailed Description

NewGRF handling of rail types.

Definition in file newgrf_railtype.h.

Function Documentation

GetCustomRailSprite()

SpriteID GetCustomRailSprite	(	const RailTypeInfo *	rti,
		TileIndex	tile,
		RailTypeSpriteGroup	rtsg,
		TileContext	context,
		uint *	num_results
	)

Get the sprite to draw for the given tile.

Parameters

	rti	The rail type data (spec).
	tile	The tile to get the sprite for.
	rtsg	The type of sprite to draw.
	context	Where are we drawing the tile?
[out]	num_results	If not nullptr, return the number of sprites in the spriteset.

Returns

The sprite to draw.

Definition at line 96 of file newgrf_railtype.cpp.

References RailTypeInfo::group, and SpriteGroup::Resolve().

Referenced by DrawBridgeMiddle(), DrawStationTile(), DrawTile_Road(), DrawTile_TunnelBridge(), DrawTrackDetails(), GetPylonBase(), and GetWireBase().

GetCustomSignalSprite()

SpriteID GetCustomSignalSprite	(	const RailTypeInfo *	rti,
		TileIndex	tile,
		SignalType	type,
		SignalVariant	var,
		SignalState	state,
		bool	gui
	)

Get the sprite to draw for a given signal.

Parameters

rti	The rail type data (spec).
tile	The tile to get the sprite for.
type	Signal type.
var	Signal variant.
state	Signal state.
gui	Is the sprite being used on the map or in the GUI?

Returns

The sprite to draw.

Definition at line 121 of file newgrf_railtype.cpp.

References RailTypeInfo::group, SpriteGroup::Resolve(), RTSG_SIGNALS, and TCX_NORMAL.

GetRailTypeTranslation()

RailType GetRailTypeTranslation	(	uint8_t	railtype,
		const GRFFile *	grffile
	)

Translate an index to the GRF-local railtype-translation table into a RailType.

Parameters

railtype	Index into GRF-local translation table.
grffile	Originating GRF file.

Returns

RailType or INVALID_RAILTYPE if the railtype is unknown.

Definition at line 141 of file newgrf_railtype.cpp.

References GetRailTypeByLabel(), GetRailTypeInfo(), INVALID_RAILTYPE, RAILTYPE_END, and GRFFile::railtype_list.

GetReverseRailTypeTranslation()

uint8_t GetReverseRailTypeTranslation	(	RailType	railtype,
		const GRFFile *	grffile
	)

Perform a reverse railtype lookup to get the GRF internal ID.

Parameters

railtype	The global (OpenTTD) railtype.
grffile	The GRF to do the lookup for.

Returns

the GRF internal ID.

Definition at line 163 of file newgrf_railtype.cpp.

References find_index(), GetRailTypeInfo(), RailTypeInfo::label, and GRFFile::railtype_list.

Referenced by StationScopeResolver::GetVariable().