NewGRF handling of engines. More...

#include "stdafx.h"
#include "debug.h"
#include "train.h"
#include "roadveh.h"
#include "company_func.h"
#include "newgrf_cargo.h"
#include "newgrf_spritegroup.h"
#include "timer/timer_game_calendar.h"
#include "vehicle_func.h"
#include "core/random_func.hpp"
#include "core/container_func.hpp"
#include "aircraft.h"
#include "station_base.h"
#include "company_base.h"
#include "newgrf_railtype.h"
#include "newgrf_roadtype.h"
#include "ship.h"
#include "safeguards.h"

Data Structures
struct	ListOrderChange

Enumerations
enum	TTDPAircraftMovementStates { AMS_TTDP_HANGAR , AMS_TTDP_TO_HANGAR , AMS_TTDP_TO_PAD1 , AMS_TTDP_TO_PAD2 , AMS_TTDP_TO_PAD3 , AMS_TTDP_TO_ENTRY_2_AND_3 , AMS_TTDP_TO_ENTRY_2_AND_3_AND_H , AMS_TTDP_TO_JUNCTION , AMS_TTDP_LEAVE_RUNWAY , AMS_TTDP_TO_INWAY , AMS_TTDP_TO_RUNWAY , AMS_TTDP_TO_OUTWAY , AMS_TTDP_WAITING , AMS_TTDP_TAKEOFF , AMS_TTDP_TO_TAKEOFF , AMS_TTDP_CLIMBING , AMS_TTDP_FLIGHT_APPROACH , AMS_TTDP_UNUSED_0x11 , AMS_TTDP_FLIGHT_TO_TOWER , AMS_TTDP_UNUSED_0x13 , AMS_TTDP_FLIGHT_FINAL , AMS_TTDP_FLIGHT_DESCENT , AMS_TTDP_BRAKING , AMS_TTDP_HELI_TAKEOFF_AIRPORT , AMS_TTDP_HELI_TO_TAKEOFF_AIRPORT , AMS_TTDP_HELI_LAND_AIRPORT , AMS_TTDP_HELI_TAKEOFF_HELIPORT , AMS_TTDP_HELI_TO_TAKEOFF_HELIPORT , AMS_TTDP_HELI_LAND_HELIPORT }

enum	TTDPAircraftMovementActions { AMA_TTDP_IN_HANGAR , AMA_TTDP_ON_PAD1 , AMA_TTDP_ON_PAD2 , AMA_TTDP_ON_PAD3 , AMA_TTDP_HANGAR_TO_PAD1 , AMA_TTDP_HANGAR_TO_PAD2 , AMA_TTDP_HANGAR_TO_PAD3 , AMA_TTDP_LANDING_TO_PAD1 , AMA_TTDP_LANDING_TO_PAD2 , AMA_TTDP_LANDING_TO_PAD3 , AMA_TTDP_PAD1_TO_HANGAR , AMA_TTDP_PAD2_TO_HANGAR , AMA_TTDP_PAD3_TO_HANGAR , AMA_TTDP_PAD1_TO_TAKEOFF , AMA_TTDP_PAD2_TO_TAKEOFF , AMA_TTDP_PAD3_TO_TAKEOFF , AMA_TTDP_HANGAR_TO_TAKOFF , AMA_TTDP_LANDING_TO_HANGAR , AMA_TTDP_IN_FLIGHT }

Functions
void	SetWagonOverrideSprites (EngineID engine, CargoID cargo, const SpriteGroup *group, std::span< EngineID > engine_ids)

const SpriteGroup *	GetWagonOverrideSpriteSet (EngineID engine, CargoID cargo, EngineID overriding_engine)

void	SetCustomEngineSprites (EngineID engine, uint8_t cargo, const SpriteGroup *group)

void	SetEngineGRF (EngineID engine, const GRFFile *file)
	Tie a GRFFile entry to an engine, to allow us to retrieve GRF parameters etc during a game.

static int	MapOldSubType (const Vehicle *v)

static uint8_t	MapAircraftMovementState (const Aircraft *v)
	Map OTTD aircraft movement states to TTDPatch style movement states (VarAction 2 Variable 0xE2)

static uint8_t	MapAircraftMovementAction (const Aircraft *v)
	Map OTTD aircraft movement states to TTDPatch style movement actions (VarAction 2 Variable 0xE6) This is not fully supported yet but it's enough for Planeset.

static const Livery *	LiveryHelper (EngineID engine, const Vehicle *v)
	Determines the livery of an engine.

static uint32_t	PositionHelper (const Vehicle *v, bool consecutive)
	Helper to get the position of a vehicle within a chain of vehicles.

static uint32_t	VehicleGetVariable (Vehicle v, const VehicleScopeResolver object, uint8_t variable, uint32_t parameter, bool &available)

static const GRFFile *	GetEngineGrfFile (EngineID engine_type)
	Get the grf file associated with an engine type.

void	GetCustomEngineSprite (EngineID engine, const Vehicle v, Direction direction, EngineImageType image_type, VehicleSpriteSeq result)

void	GetRotorOverrideSprite (EngineID engine, const struct Aircraft v, EngineImageType image_type, VehicleSpriteSeq result)

bool	UsesWagonOverride (const Vehicle *v)
	Check if a wagon is currently using a wagon override.

uint16_t	GetVehicleCallback (CallbackID callback, uint32_t param1, uint32_t param2, EngineID engine, const Vehicle *v)
	Evaluate a newgrf callback for vehicles.

uint16_t	GetVehicleCallbackParent (CallbackID callback, uint32_t param1, uint32_t param2, EngineID engine, const Vehicle v, const Vehicle parent)
	Evaluate a newgrf callback for vehicles with a different vehicle for parent scope.

int	GetVehicleProperty (const Vehicle *v, PropertyID property, int orig_value, bool is_signed)

int	GetEngineProperty (EngineID engine, PropertyID property, int orig_value, const Vehicle *v, bool is_signed)

bool	TestVehicleBuildProbability (Vehicle *v, EngineID engine, BuildProbabilityType type)
	Test for vehicle build probablity type.

static void	DoTriggerVehicle (Vehicle *v, VehicleTrigger trigger, uint16_t base_random_bits, bool first)

void	TriggerVehicle (Vehicle *v, VehicleTrigger trigger)

void	AlterVehicleListOrder (EngineID engine, uint16_t target)
	Record a vehicle ListOrderChange.

static bool	EnginePreSort (const EngineID &a, const EngineID &b)
	Comparator function to sort engines via scope-GRFID and local ID.

void	CommitVehicleListOrderChanges ()
	Deternine default engine sorting and execute recorded ListOrderChanges from AlterVehicleListOrder.

void	FillNewGRFVehicleCache (const Vehicle *v)
	Fill the grf_cache of the given vehicle.

Variables
static std::vector< ListOrderChange >	_list_order_changes

Detailed Description

NewGRF handling of engines.

Definition in file newgrf_engine.cpp.

Enumeration Type Documentation

◆ TTDPAircraftMovementActions

enum TTDPAircraftMovementActions

Definition at line 233 of file newgrf_engine.cpp.

◆ TTDPAircraftMovementStates

enum TTDPAircraftMovementStates

Definition at line 97 of file newgrf_engine.cpp.

Function Documentation

◆ AlterVehicleListOrder()

void AlterVehicleListOrder	(	EngineID	engine,
		uint16_t	target
	)

Record a vehicle ListOrderChange.

Parameters

engine	Engine to move
target	Local engine ID to move engine in front of

Note: All sorting is done later in CommitVehicleListOrderChanges

Definition at line 1302 of file newgrf_engine.cpp.

Referenced by AircraftVehicleChangeInfo(), RailVehicleChangeInfo(), RoadVehicleChangeInfo(), and ShipVehicleChangeInfo().

◆ CommitVehicleListOrderChanges()

void CommitVehicleListOrderChanges ( )

Deternine default engine sorting and execute recorded ListOrderChanges from AlterVehicleListOrder.

Definition at line 1332 of file newgrf_engine.cpp.

References EnginePreSort(), Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem<&_engine_pool >::Get(), EngineOverrideManager::GetID(), Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem<&_engine_pool >::GetNumItems(), Engine::grf_prop, GRFFilePropsBase< Tcnt >::grfid, INVALID_ENGINE, GRFFilePropsBase< Tcnt >::local_id, Slide(), and Engine::type.

Referenced by AfterLoadGRFs().

◆ DoTriggerVehicle()

static void DoTriggerVehicle	(	Vehicle *	v,
		VehicleTrigger	trigger,
		uint16_t	base_random_bits,
		bool	first
	)

static

Definition at line 1211 of file newgrf_engine.cpp.

◆ EnginePreSort()

static bool EnginePreSort	(	const EngineID &	a,
		const EngineID &	b
	)

static

Comparator function to sort engines via scope-GRFID and local ID.

Parameters

a	left side
b	right side

Returns: comparison result

Definition at line 1314 of file newgrf_engine.cpp.

References Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem<&_engine_pool >::Get(), Engine::grf_prop, GRFFilePropsBase< Tcnt >::grfid, GRFFilePropsBase< Tcnt >::local_id, and Engine::type.

Referenced by CommitVehicleListOrderChanges().

◆ FillNewGRFVehicleCache()

void FillNewGRFVehicleCache ( const Vehicle * v )

Fill the grf_cache of the given vehicle.

Parameters

v	The vehicle to fill the cache for.

Definition at line 1376 of file newgrf_engine.cpp.

References NewGRFCache::cache_valid, Vehicle::engine_type, VehicleResolverObject::GetScope(), ScopeResolver::GetVariable(), Vehicle::grf_cache, HasBit(), lengthof, NCVV_COMPANY_INFORMATION, NCVV_CONSIST_CARGO_INFORMATION, NCVV_END, NCVV_POSITION_CONSIST_LENGTH, NCVV_POSITION_IN_VEHICLE, NCVV_POSITION_SAME_ID_LENGTH, VSG_SCOPE_SELF, and VehicleResolverObject::WO_NONE.

Referenced by CheckCaches().

◆ GetCustomEngineSprite()

void GetCustomEngineSprite	(	EngineID	engine,
		const Vehicle *	v,
		Direction	direction,
		EngineImageType	image_type,
		VehicleSpriteSeq *	result
	)

Definition at line 1074 of file newgrf_engine.cpp.

◆ GetEngineGrfFile()

static const GRFFile * GetEngineGrfFile ( EngineID engine_type )

static

Get the grf file associated with an engine type.

Parameters

engine_type Engine to query.

Returns: grf file associated with the engine.

Definition at line 1023 of file newgrf_engine.cpp.

References Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem<&_engine_pool >::Get(), and Engine::GetGRF().

◆ GetEngineProperty()

int GetEngineProperty	(	EngineID	engine,
		PropertyID	property,
		int	orig_value,
		const Vehicle *	v,
		bool	is_signed
	)

Definition at line 1181 of file newgrf_engine.cpp.

◆ GetRotorOverrideSprite()

void GetRotorOverrideSprite	(	EngineID	engine,
		const struct Aircraft *	v,
		EngineImageType	image_type,
		VehicleSpriteSeq *	result
	)

Definition at line 1096 of file newgrf_engine.cpp.

◆ GetVehicleCallback()

uint16_t GetVehicleCallback	(	CallbackID	callback,
		uint32_t	param1,
		uint32_t	param2,
		EngineID	engine,
		const Vehicle *	v
	)

Evaluate a newgrf callback for vehicles.

Parameters

callback	The callback to evaluate
param1	First parameter of the callback
param2	Second parameter of the callback
engine	Engine type of the vehicle to evaluate the callback for
v	The vehicle to evaluate the callback for, or nullptr if it doesn't exist yet

Returns: The value the callback returned, or CALLBACK_FAILED if it failed

Definition at line 1150 of file newgrf_engine.cpp.

References VehicleResolverObject::WO_UNCACHED.

Referenced by CalculateRefitMasks(), CmdStartStopVehicle(), Train::ConsistChanged(), Engine::DetermineCapacity(), FormatString(), GetCargoSubtypeText(), GetLoadAmount(), GetNewGRFAdditionalText(), GetNextArticulatedPart(), GetRefitCostFactor(), GetRoadVehLength(), PlayVehicleSound(), RunEconomyVehicleDayProc(), SpawnAdvancedVisualEffect(), TestVehicleBuildProbability(), and Vehicle::UpdateVisualEffect().

◆ GetVehicleCallbackParent()

uint16_t GetVehicleCallbackParent	(	CallbackID	callback,
		uint32_t	param1,
		uint32_t	param2,
		EngineID	engine,
		const Vehicle *	v,
		const Vehicle *	parent
	)

Evaluate a newgrf callback for vehicles with a different vehicle for parent scope.

Parameters

callback	The callback to evaluate
param1	First parameter of the callback
param2	Second parameter of the callback
engine	Engine type of the vehicle to evaluate the callback for
v	The vehicle to evaluate the callback for, or nullptr if it doesn't exist yet
parent	The vehicle to use for parent scope

Returns: The value the callback returned, or CALLBACK_FAILED if it failed

Definition at line 1166 of file newgrf_engine.cpp.

References VehicleResolverObject::WO_NONE.

Referenced by CheckTrainAttachment().

◆ GetVehicleProperty()

int GetVehicleProperty	(	const Vehicle *	v,
		PropertyID	property,
		int	orig_value,
		bool	is_signed
	)

Definition at line 1175 of file newgrf_engine.cpp.

◆ GetWagonOverrideSpriteSet()

const SpriteGroup * GetWagonOverrideSpriteSet	(	EngineID	engine,
		CargoID	cargo,
		EngineID	overriding_engine
	)

Definition at line 42 of file newgrf_engine.cpp.

◆ LiveryHelper()

static const Livery * LiveryHelper	(	EngineID	engine,
		const Vehicle *	v
	)

static

Determines the livery of an engine.

This always uses dual company colours independent of GUI settings. So it is desync-safe.

Parameters

engine	Engine type
v	Vehicle, nullptr in purchase list.

Returns: Livery to use

Definition at line 374 of file newgrf_engine.cpp.

References _current_company, Vehicle::engine_type, GroundVehicleCache::first_engine, GetEngineLivery(), Vehicle::GetGroundVehicleCache(), INVALID_ENGINE, Vehicle::IsGroundVehicle(), Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem<&_company_pool >::IsValidID(), LIT_ALL, and Vehicle::owner.

Referenced by VehicleScopeResolver::GetVariable().

◆ MapAircraftMovementAction()

static uint8_t MapAircraftMovementAction ( const Aircraft * v )

static

Map OTTD aircraft movement states to TTDPatch style movement actions (VarAction 2 Variable 0xE6) This is not fully supported yet but it's enough for Planeset.

Definition at line 261 of file newgrf_engine.cpp.

References Vehicle::cur_speed, Vehicle::current_order, ENDLANDING, ENDTAKEOFF, FLYING, HANGAR, HELIENDLANDING, HELILANDING, HELIPAD1, HELIPAD2, HELIPAD3, HELITAKEOFF, Order::IsType(), LANDING, STARTTAKEOFF, Aircraft::state, TAKEOFF, TERM1, TERM2, TERM3, TERM4, TERM5, TERM6, TERM7, and TERM8.

◆ MapAircraftMovementState()

static uint8_t MapAircraftMovementState ( const Aircraft * v )

static

Map OTTD aircraft movement states to TTDPatch style movement states (VarAction 2 Variable 0xE2)

Definition at line 134 of file newgrf_engine.cpp.

References Station::airport, AMED_BRAKE, AMED_EXACTPOS, AMED_HELI_LOWER, AMED_HELI_RAISE, AMED_HOLD, AMED_SLOWTURN, AirportFTAClass::delta_z, ENDLANDING, ENDTAKEOFF, AirportMovingData::flag, FLYING, Airport::GetFTA(), GetTargetAirportIfValid(), HANGAR, HELIENDLANDING, HELILANDING, HELIPAD1, HELIPAD2, HELIPAD3, HELITAKEOFF, LANDING, AirportFTAClass::MovingData(), Aircraft::pos, STARTTAKEOFF, Aircraft::state, TAKEOFF, TERM1, TERM2, TERM3, TERM4, TERM5, TERM6, TERM7, and TERM8.

◆ MapOldSubType()

static int MapOldSubType ( const Vehicle * v )

static

Definition at line 79 of file newgrf_engine.cpp.

◆ PositionHelper()

static uint32_t PositionHelper	(	const Vehicle *	v,
		bool	consecutive
	)

static

Helper to get the position of a vehicle within a chain of vehicles.

Parameters

v	the vehicle to get the position of.
consecutive	whether to look at the whole chain or the vehicles with the same 'engine type'.

Returns: the position in the chain from front and tail and chain length.

Definition at line 397 of file newgrf_engine.cpp.

References Vehicle::engine_type, Vehicle::First(), and Vehicle::Next().

◆ SetCustomEngineSprites()

void SetCustomEngineSprites	(	EngineID	engine,
		uint8_t	cargo,
		const SpriteGroup *	group
	)

Definition at line 53 of file newgrf_engine.cpp.

◆ SetEngineGRF()

void SetEngineGRF	(	EngineID	engine,
		const GRFFile *	file
	)

Tie a GRFFile entry to an engine, to allow us to retrieve GRF parameters etc during a game.

Parameters

engine	Engine ID to tie the GRFFile to.
file	Pointer of GRFFile to tie.

Definition at line 71 of file newgrf_engine.cpp.

References Pool< Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero >::PoolItem<&_engine_pool >::Get(), Engine::grf_prop, GRFFilePropsBase< Tcnt >::grffile, and GRFFilePropsBase< Tcnt >::grfid.

◆ SetWagonOverrideSprites()

void SetWagonOverrideSprites	(	EngineID	engine,
		CargoID	cargo,
		const SpriteGroup *	group,
		std::span< EngineID >	engine_ids
	)

Definition at line 30 of file newgrf_engine.cpp.

◆ TestVehicleBuildProbability()

bool TestVehicleBuildProbability	(	Vehicle *	v,
		EngineID	engine,
		BuildProbabilityType	type
	)

Test for vehicle build probablity type.

Parameters

v	Vehicle whose build probability to test.
type	Build probability type to test for.

Returns: True iff the probability result says so.

Definition at line 1202 of file newgrf_engine.cpp.

References CALLBACK_FAILED, CBID_VEHICLE_BUILD_PROBABILITY, GetVehicleCallback(), RandomRange(), and to_underlying().

Referenced by AddArticulatedParts(), CmdBuildRailVehicle(), and CmdBuildRailWagon().

◆ TriggerVehicle()

void TriggerVehicle	(	Vehicle *	v,
		VehicleTrigger	trigger
	)

Definition at line 1273 of file newgrf_engine.cpp.

◆ UsesWagonOverride()

bool UsesWagonOverride ( const Vehicle * v )

Check if a wagon is currently using a wagon override.

Parameters

v	The wagon to check

Returns: true if it is using an override, false otherwise

Definition at line 1135 of file newgrf_engine.cpp.

References SpecializedVehicle< T, Type >::From(), BaseVehicle::type, and VEH_TRAIN.

Referenced by Train::ConsistChanged(), and GetEngineLiveryScheme().

◆ VehicleGetVariable()

static uint32_t VehicleGetVariable	(	Vehicle *	v,
		const VehicleScopeResolver *	object,
		uint8_t	variable,
		uint32_t	parameter,
		bool &	available
	)

static

Definition at line 416 of file newgrf_engine.cpp.

Variable Documentation

◆ _list_order_changes

std::vector<ListOrderChange> _list_order_changes

static

Definition at line 1294 of file newgrf_engine.cpp.

Data Structures

Enumerations

Functions

Variables

Detailed Description

Enumeration Type Documentation

◆ TTDPAircraftMovementActions

◆ TTDPAircraftMovementStates

Function Documentation

◆ AlterVehicleListOrder()

◆ CommitVehicleListOrderChanges()

◆ DoTriggerVehicle()

◆ EnginePreSort()

◆ FillNewGRFVehicleCache()

◆ GetCustomEngineSprite()

◆ GetEngineGrfFile()

◆ GetEngineProperty()

◆ GetRotorOverrideSprite()

◆ GetVehicleCallback()

◆ GetVehicleCallbackParent()

◆ GetVehicleProperty()

◆ GetWagonOverrideSpriteSet()

◆ LiveryHelper()

◆ MapAircraftMovementAction()

◆ MapAircraftMovementState()

◆ MapOldSubType()

◆ PositionHelper()

◆ SetCustomEngineSprites()

◆ SetEngineGRF()

◆ SetWagonOverrideSprites()

◆ TestVehicleBuildProbability()

◆ TriggerVehicle()

◆ UsesWagonOverride()

◆ VehicleGetVariable()

Variable Documentation

◆ _list_order_changes