Base for the NewGRF implementation. More...

#include "cargotype.h"
#include "rail_type.h"
#include "road_type.h"
#include "fileio_type.h"
#include "newgrf_text_type.h"
#include "core/bitmath_func.hpp"
#include "core/alloc_type.hpp"
#include "core/mem_func.hpp"

Data Structures
struct	CanalProperties
	Canal properties local to the NewGRF. More...

struct	GRFLabel

struct	GRFFile
	Dynamic data of a loaded NewGRF. More...

struct	GRFLoadedFeatures

Macros
#define	GrfMsg(severity, format_string, ...) do { if ((severity) == 0 \|\| _debug_grf_level >= (severity)) GrfMsgI(severity, fmt::format(FMT_STRING(format_string) __VA_OPT__(,) __VA_ARGS__)); } while (false)

Enumerations
enum	CanalFeature { CF_WATERSLOPE , CF_LOCKS , CF_DIKES , CF_ICON , CF_DOCKS , CF_RIVER_SLOPE , CF_RIVER_EDGE , CF_RIVER_GUI , CF_BUOY , CF_END }
	List of different canal 'features'. More...

enum	GrfLoadingStage { GLS_FILESCAN , GLS_SAFETYSCAN , GLS_LABELSCAN , GLS_INIT , GLS_RESERVE , GLS_ACTIVATION , GLS_END }

enum	GrfMiscBit { GMB_DESERT_TREES_FIELDS = 0 , GMB_DESERT_PAVED_ROADS = 1 , GMB_FIELD_BOUNDING_BOX = 2 , GMB_TRAIN_WIDTH_32_PIXELS = 3 , GMB_AMBIENT_SOUND_CALLBACK = 4 , GMB_CATENARY_ON_3RD_TRACK = 5 , GMB_SECOND_ROCKY_TILE_SET = 6 }

enum	GrfSpecFeature { GSF_TRAINS , GSF_ROADVEHICLES , GSF_SHIPS , GSF_AIRCRAFT , GSF_STATIONS , GSF_CANALS , GSF_BRIDGES , GSF_HOUSES , GSF_GLOBALVAR , GSF_INDUSTRYTILES , GSF_INDUSTRIES , GSF_CARGOES , GSF_SOUNDFX , GSF_AIRPORTS , GSF_SIGNALS , GSF_OBJECTS , GSF_RAILTYPES , GSF_AIRPORTTILES , GSF_ROADTYPES , GSF_TRAMTYPES , GSF_ROADSTOPS , GSF_END , GSF_FAKE_TOWNS = GSF_END , GSF_FAKE_END , GSF_INVALID = 0xFF }

enum	ShoreReplacement { SHORE_REPLACE_NONE , SHORE_REPLACE_ACTION_5 , SHORE_REPLACE_ACTION_A , SHORE_REPLACE_ONLY_NEW }

enum	TramReplacement { TRAMWAY_REPLACE_DEPOT_NONE , TRAMWAY_REPLACE_DEPOT_WITH_TRACK , TRAMWAY_REPLACE_DEPOT_NO_TRACK }

Functions
bool	HasGrfMiscBit (GrfMiscBit bit)
	Check for grf miscellaneous bits. More...

void	LoadNewGRFFile (struct GRFConfig *config, GrfLoadingStage stage, Subdirectory subdir, bool temporary)
	Load a particular NewGRF. More...

void	LoadNewGRF (SpriteID load_index, uint num_baseset)
	Load all the NewGRFs. More...

void	ReloadNewGRFData ()
	Reload all NewGRF files during a running game. More...

void	ResetNewGRFData ()
	Reset all NewGRF loaded data.

void	ResetPersistentNewGRFData ()
	Reset NewGRF data which is stored persistently in savegames.

void	GrfMsgI (int severity, const std::string &msg)
	Debug() function dedicated to newGRF debugging messages Function is essentially the same as Debug(grf, severity, ...) with the addition of file:line information when parsing grf files. More...

bool	GetGlobalVariable (uint8_t param, uint32_t value, const GRFFile grffile)
	Reads a variable common to VarAction2 and Action7/9/D. More...

StringID	MapGRFStringID (uint32_t grfid, StringID str)
	Used when setting an object's property to map to the GRF's strings while taking in consideration the "drift" between TTDPatch string system and OpenTTD's one. More...

void	ShowNewGRFError ()
	Show the first NewGRF error we can find.

Variables
static const uint32_t	INVALID_GRFID = 0xFFFFFFFF

GRFLoadedFeatures	_loaded_newgrf_features
	Indicates which are the newgrf features currently loaded ingame.

Detailed Description

Base for the NewGRF implementation.

Definition in file newgrf.h.

Enumeration Type Documentation

◆ CanalFeature

enum CanalFeature

List of different canal 'features'.

Each feature gets an entry in the canal spritegroup table

Definition at line 26 of file newgrf.h.

◆ GrfMiscBit

enum GrfMiscBit

Enumerator

GMB_TRAIN_WIDTH_32_PIXELS

Use 32 pixels per train vehicle in depot gui and vehicle details. Never set in the global variable;.

See also: GRFFile::traininfo_vehicle_width

Definition at line 57 of file newgrf.h.

◆ GrfSpecFeature

enum GrfSpecFeature

Enumerator
GSF_FAKE_TOWNS	Fake town GrfSpecFeature for NewGRF debugging (parent scope)
GSF_FAKE_END	End of the fake features.
GSF_INVALID	An invalid spec feature.

Definition at line 67 of file newgrf.h.

◆ ShoreReplacement

enum ShoreReplacement

Enumerator
SHORE_REPLACE_NONE	No shore sprites were replaced.
SHORE_REPLACE_ACTION_5	Shore sprites were replaced by Action5.
SHORE_REPLACE_ACTION_A	Shore sprites were replaced by ActionA (using grass tiles for the corner-shores).
SHORE_REPLACE_ONLY_NEW	Only corner-shores were loaded by Action5 (openttd(w/d).grf only).

Definition at line 164 of file newgrf.h.

◆ TramReplacement

enum TramReplacement

Enumerator
TRAMWAY_REPLACE_DEPOT_NONE	No tram depot graphics were loaded.
TRAMWAY_REPLACE_DEPOT_WITH_TRACK	Electrified depot graphics with tram track were loaded.
TRAMWAY_REPLACE_DEPOT_NO_TRACK	Electrified depot graphics without tram track were loaded.

Definition at line 171 of file newgrf.h.

Function Documentation

◆ GetGlobalVariable()

bool GetGlobalVariable	(	uint8_t	param,
		uint32_t *	value,
		const GRFFile *	grffile
	)

Reads a variable common to VarAction2 and Action7/9/D.

Returns VarAction2 variable 'param' resp. Action7/9/D variable '0x80 + param'. If a variable is not accessible from all four actions, it is handled in the action specific functions.

Parameters

param	variable number (as for VarAction2, for Action7/9/D you have to subtract 0x80 first).
value	returns the value of the variable.
grffile	NewGRF querying the variable

Returns: true iff the variable is known and the value is returned in 'value'.

Definition at line 6506 of file newgrf.cpp.

References _settings_game, Clamp(), TimerGameCalendar::ConvertDateToYMD(), TimerGameCalendar::ConvertYMDToDate(), TimerGameTick::counter, TimerGameCalendar::date, TimerGameCalendar::date_fract, TimerGameConst< struct Calendar >::DAYS_TILL_ORIGINAL_BASE_YEAR, GameSettings::game_creation, GB(), TimerGame< struct Calendar >::IsLeapYear(), GameCreationSettings::landscape, TimerGameConst< struct Calendar >::ORIGINAL_BASE_YEAR, TimerGameConst< struct Calendar >::ORIGINAL_MAX_YEAR, VehicleSettings::road_side, GameSettings::vehicle, and TimerGameCalendar::year.

◆ GrfMsgI()

void GrfMsgI	(	int	severity,
		const std::string &	msg
	)

Debug() function dedicated to newGRF debugging messages Function is essentially the same as Debug(grf, severity, ...) with the addition of file:line information when parsing grf files.

NOTE: for the above reason(s) GrfMsg() should ONLY be used for loading/parsing grf files, not for runtime debug messages as there is no file information available during that time.

Parameters

severity	debugging severity level, see debug.h
msg	the message

Definition at line 389 of file newgrf.cpp.

References Debug.

◆ HasGrfMiscBit()

bool HasGrfMiscBit ( GrfMiscBit bit )

inline

Check for grf miscellaneous bits.

Parameters

bit	The bit to check.

Returns: Whether the bit is set.

Definition at line 189 of file newgrf.h.

References _misc_grf_features, and HasBit().

Referenced by AmbientSoundEffect().

◆ LoadNewGRF()

void LoadNewGRF	(	SpriteID	load_index,
		uint	num_baseset
	)

Load all the NewGRFs.

Parameters

load_index	The offset for the first sprite to add.
num_baseset	Number of NewGRFs at the front of the list to look up in the baseset dir instead of the newgrf dir.

Definition at line 10017 of file newgrf.cpp.

References _display_opt, _grfconfig, _networking, _settings_game, TimerGameCalendar::ConvertYMDToDate(), TimerGameEconomy::ConvertYMDToDate(), TimerGameTick::counter, TimerGameCalendar::date, TimerGameEconomy::date, TimerGameCalendar::date_fract, TimerGameEconomy::date_fract, GameSettings::game_creation, GCS_NOT_FOUND, GCS_UNKNOWN, InitializeGRFSpecial(), GRFConfig::next, ResetNewGRFData(), GameCreationSettings::starting_year, GRFConfig::status, TimerGameCalendar::year, and TimerGameEconomy::year.

◆ LoadNewGRFFile()

void LoadNewGRFFile	(	GRFConfig *	config,
		GrfLoadingStage	stage,
		Subdirectory	subdir,
		bool	temporary
	)

Load a particular NewGRF.

Parameters

config	The configuration of the to be loaded NewGRF.
stage	The loading stage of the NewGRF.
subdir	The sub directory to find the NewGRF in.
temporary	The NewGRF/sprite file is to be loaded temporarily and should be closed immediately, contrary to loading the SpriteFile and having it cached by the SpriteCache.

Definition at line 9694 of file newgrf.cpp.

References GRFConfig::filename.

Referenced by FillGRFDetails().

◆ MapGRFStringID()

StringID MapGRFStringID	(	uint32_t	grfid,
		StringID	str
	)

Used when setting an object's property to map to the GRF's strings while taking in consideration the "drift" between TTDPatch string system and OpenTTD's one.

Parameters

grfid	Id of the grf file.
str	StringID that we want to have the equivalent in OoenTTD.

Returns: The properly adjusted StringID.

Definition at line 559 of file newgrf.cpp.

References GetGRFStringID(), IsInsideMM(), and TTDPStringIDToOTTDStringIDMapping().

Referenced by AfterLoadGRFs().

◆ ReloadNewGRFData()

void ReloadNewGRFData ( )

Reload all NewGRF files during a running game.

This is a cut-down version of AfterLoadGame(). XXX - We need to reset the vehicle position hash because with a non-empty hash AfterLoadVehicles() will loop infinitely. We need AfterLoadVehicles() to recalculate vehicle data as some NewGRF vehicle sets could have been removed or added and changed statistics

Definition at line 3364 of file afterload.cpp.

References GfxLoadSprites(), LoadStringWidthTable(), and RecomputePrices().

Referenced by ClickChangeMaxHlCheat(), and NewGRFConfirmationCallback().

Data Structures

Macros

Enumerations

Functions

Variables

Detailed Description

Enumeration Type Documentation

◆ CanalFeature

◆ GrfMiscBit

◆ GrfSpecFeature

◆ ShoreReplacement

◆ TramReplacement

Function Documentation

◆ GetGlobalVariable()

◆ GrfMsgI()

◆ HasGrfMiscBit()

◆ LoadNewGRF()

◆ LoadNewGRFFile()

◆ MapGRFStringID()

◆ ReloadNewGRFData()