newgrf_roadtype.h File Reference

NewGRF handling of road types. More...

#include "road.h"
#include "newgrf_commons.h"
#include "newgrf_spritegroup.h"

Go to the source code of this file.

Data Structures
struct	RoadTypeScopeResolver
	Resolver for the railtype scope. More...
struct	RoadTypeResolverObject
	Resolver object for road types. More...

Functions
SpriteID	GetCustomRoadSprite (const RoadTypeInfo *rti, TileIndex tile, RoadTypeSpriteGroup rtsg, TileContext context=TCX_NORMAL, uint *num_results=nullptr)
	Get the sprite to draw for the given tile. More...
RoadType	GetRoadTypeTranslation (RoadTramType rtt, uint8_t tracktype, const GRFFile *grffile)
	Translate an index to the GRF-local road/tramtype-translation table into a RoadType. More...
uint8_t	GetReverseRoadTypeTranslation (RoadType roadtype, const GRFFile *grffile)
	Perform a reverse roadtype lookup to get the GRF internal ID. More...

Detailed Description

NewGRF handling of road types.

Definition in file newgrf_roadtype.h.

Function Documentation

GetCustomRoadSprite()

SpriteID GetCustomRoadSprite	(	const RoadTypeInfo *	rti,
		TileIndex	tile,
		RoadTypeSpriteGroup	rtsg,
		TileContext	context,
		uint *	num_results
	)

Get the sprite to draw for the given tile.

Parameters

	rti	The road type data (spec).
	tile	The tile to get the sprite for.
	rtsg	The type of sprite to draw.
	content	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 101 of file newgrf_roadtype.cpp.

Referenced by DrawRoadOverlays(), and GetBridgeRoadCatenary().

GetReverseRoadTypeTranslation()

uint8_t GetReverseRoadTypeTranslation	(	RoadType	roadtype,
		const GRFFile *	grffile
	)

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

Parameters

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

Returns

the GRF internal ID.

Definition at line 153 of file newgrf_roadtype.cpp.

GetRoadTypeTranslation()

RoadType GetRoadTypeTranslation	(	RoadTramType	rtt,
		uint8_t	tracktype,
		const GRFFile *	grffile
	)

Translate an index to the GRF-local road/tramtype-translation table into a RoadType.

Parameters

rtt	Whether to index the road- or tramtype-table.
tracktype	Index into GRF-local translation table.
grffile	Originating GRF file.

Returns

RoadType or INVALID_ROADTYPE if the roadtype is unknown.

Definition at line 123 of file newgrf_roadtype.cpp.

References INVALID_ROADTYPE.