Handling of the engine groups. More...

#include "stdafx.h"
#include "command_func.h"
#include "train.h"
#include "vehiclelist.h"
#include "vehicle_func.h"
#include "autoreplace_base.h"
#include "autoreplace_func.h"
#include "string_func.h"
#include "company_func.h"
#include "core/pool_func.hpp"
#include "order_backup.h"
#include "group_cmd.h"
#include "table/strings.h"
#include "safeguards.h"

Functions
void	UpdateGroupChildren ()
	Update children list for each group.

static void	UpdateNumEngineGroup (const Vehicle *v, GroupID old_g, GroupID new_g)
	Update the num engines of a groupID.

const Livery *	GetParentLivery (const Group *g)

static void	PropagateChildLivery (const Group *g, bool reset_cache)
	Propagate a livery change to a group's children, and optionally update cached vehicle colourmaps.

void	UpdateCompanyGroupLiveries (const Company *c)
	Update group liveries for a company.

std::tuple< CommandCost, GroupID >	CmdCreateGroup (DoCommandFlags flags, VehicleType vt, GroupID parent_group)
	Create a new vehicle group.

CommandCost	CmdDeleteGroup (DoCommandFlags flags, GroupID group_id)
	Add all vehicles in the given group to the default group and then deletes the group.

CommandCost	CmdAlterGroup (DoCommandFlags flags, AlterGroupMode mode, GroupID group_id, GroupID parent_id, const std::string &text)
	Alter a group.

static void	AddVehicleToGroup (Vehicle *v, GroupID new_g)
	Do add a vehicle to a group.

std::tuple< CommandCost, GroupID >	CmdAddVehicleGroup (DoCommandFlags flags, GroupID group_id, VehicleID veh_id, bool add_shared, const VehicleListIdentifier &vli)
	Add a vehicle to a group.

CommandCost	CmdAddSharedVehicleGroup (DoCommandFlags flags, GroupID id_g, VehicleType type)
	Add all shared vehicles of all vehicles from a group.

CommandCost	CmdRemoveAllVehiclesGroup (DoCommandFlags flags, GroupID group_id)
	Remove all vehicles from a group.

CommandCost	CmdSetGroupLivery (DoCommandFlags flags, GroupID group_id, bool primary, Colours colour)
	Set the livery for a vehicle group.

static void	SetGroupFlag (Group *g, GroupFlag flag, bool set, bool children)
	Set group flag for a group and its sub-groups.

CommandCost	CmdSetGroupFlag (DoCommandFlags flags, GroupID group_id, GroupFlag flag, bool value, bool recursive)
	(Un)set group flag from a group

void	SetTrainGroupID (Train *v, GroupID new_g)
	Affect the groupID of a train to new_g.

void	UpdateTrainGroupID (Train *v)
	Recalculates the groupID of a train.

uint	GetGroupNumEngines (CompanyID company, GroupID id_g, EngineID id_e)
	Get the number of engines with EngineID id_e in the group with GroupID id_g and its sub-groups.

uint	GetGroupNumVehicle (CompanyID company, GroupID id_g, VehicleType type)
	Get the number of vehicles in the group with GroupID id_g and its sub-groups.

uint	GetGroupNumVehicleMinAge (CompanyID company, GroupID id_g, VehicleType type)
	Get the number of vehicles above profit minimum age in the group with GroupID id_g and its sub-groups.

Money	GetGroupProfitLastYearMinAge (CompanyID company, GroupID id_g, VehicleType type)
	Get last year's profit of vehicles above minimum age for the group with GroupID id_g and its sub-groups.

void	RemoveAllGroupsForCompany (const CompanyID company)

bool	GroupIsInGroup (GroupID search, GroupID group)
	Test if GroupID group is a descendant of (or is) GroupID search.

Variables
GroupPool	_group_pool ("Group")

Detailed Description

Handling of the engine groups.

Definition in file group_cmd.cpp.

Function Documentation

◆ AddVehicleToGroup()

static void AddVehicleToGroup	(	Vehicle *	v,
		GroupID	new_g
	)

static

Do add a vehicle to a group.

Parameters

v	Vehicle to add.
new_g	Group to add to.

Definition at line 514 of file group_cmd.cpp.

References GroupStatistics::CountVehicle(), SpecializedVehicle< T, Type >::From(), Vehicle::group_id, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem< Tpool >::index, InvalidateWindowData(), Vehicle::IsEngineCountable(), Vehicle::Next(), SetTrainGroupID(), BaseVehicle::type, UpdateNumEngineGroup(), VEH_AIRCRAFT, VEH_ROAD, VEH_SHIP, VEH_TRAIN, WC_VEHICLE_DETAILS, and WC_VEHICLE_VIEW.

Referenced by CmdAddVehicleGroup().

◆ CmdAddSharedVehicleGroup()

CommandCost CmdAddSharedVehicleGroup	(	DoCommandFlags	flags,
		GroupID	id_g,
		VehicleType	type
	)

Add all shared vehicles of all vehicles from a group.

Parameters

flags	type of operation
id_g	index of group
type	type of vehicles

Returns: the cost of this operation or an error

Definition at line 616 of file group_cmd.cpp.

References _current_company, CMD_ERROR, Execute, Vehicle::FirstShared(), GetWindowClassForVehicleType(), InvalidateWindowData(), IsCompanyBuildableVehicleType(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::IsValidID(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_vehicle_pool >::Iterate(), Vehicle::NextShared(), BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test(), and VL_GROUP_LIST.

◆ CmdAddVehicleGroup()

std::tuple< CommandCost, GroupID > CmdAddVehicleGroup	(	DoCommandFlags	flags,
		GroupID	group_id,
		VehicleID	veh_id,
		bool	add_shared,
		const VehicleListIdentifier &	vli
	)

Add a vehicle to a group.

Parameters

flags	type of operation
group_id	index of group
veh_id	vehicle to add to a group
add_shared	Add shared vehicles as well.

Returns: the cost of this operation or an error

Definition at line 551 of file group_cmd.cpp.

References _current_company, AddVehicleToGroup(), CMD_ERROR, CmdCreateGroup(), Execute, Vehicle::FirstShared(), GenerateVehicleSortList(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_vehicle_pool >::Get(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::Get(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_vehicle_pool >::GetIfValid(), GetWindowClassForVehicleType(), InvalidateWindowData(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::IsValidID(), NEW_GROUP, Group::owner, SetWindowDirty(), BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test(), Vehicle::tile, GroupStatistics::UpdateAutoreplace(), Group::vehicle_type, VL_GROUP_LIST, WC_REPLACE_VEHICLE, and WC_VEHICLE_DEPOT.

◆ CmdAlterGroup()

CommandCost CmdAlterGroup	(	DoCommandFlags	flags,
		AlterGroupMode	mode,
		GroupID	group_id,
		GroupID	parent_id,
		const std::string &	text
	)

Alter a group.

Parameters

flags	type of operation
mode	Operation to perform.
group_id	GroupID
parent_id	parent group index
text	the new name or an empty string when resetting to the default

Returns: the cost of this operation or an error

Definition at line 439 of file group_cmd.cpp.

References _current_company, BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::All(), CMD_ERROR, Livery::colour1, Livery::colour2, Execute, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::Get(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), GetWindowClassForVehicleType(), GroupIsInGroup(), Livery::in_use, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem< Tpool >::index, InvalidateWindowClassesData(), InvalidateWindowData(), Group::livery, MarkWholeScreenDirty(), MAX_LENGTH_GROUP_NAME_CHARS, Group::name, Group::owner, Group::parent, Livery::Primary, PropagateChildLivery(), Rename, Livery::Secondary, SetParent, BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test(), VehicleListIdentifier::ToWindowNumber(), GroupStatistics::UpdateAutoreplace(), Utf8StringLength(), Group::vehicle_type, VL_GROUP_LIST, WC_COMPANY_COLOUR, WC_REPLACE_VEHICLE, WC_VEHICLE_DETAILS, and WC_VEHICLE_VIEW.

◆ CmdCreateGroup()

std::tuple< CommandCost, GroupID > CmdCreateGroup	(	DoCommandFlags	flags,
		VehicleType	vt,
		GroupID	parent_group
	)

Create a new vehicle group.

Parameters

flags	type of operation
vt	vehicle type
parent_group	parent groupid

Returns: the cost of this operation or an error

Definition at line 339 of file group_cmd.cpp.

References _current_company, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::CanAllocateItem(), Group::children, CMD_ERROR, Livery::colour1, Livery::colour2, Execute, Group::flags, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_company_pool >::Get(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), GetWindowClassForVehicleType(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem< Tpool >::index, InvalidateWindowData(), IsCompanyBuildableVehicleType(), Group::livery, FreeUnitIDGenerator::NextID(), Group::number, Group::owner, Group::parent, CompanySettings::renew_keep_length, ReplaceWagonRemoval, BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Set(), CompanyProperties::settings, BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test(), FreeUnitIDGenerator::UseID(), Group::vehicle_type, VL_GROUP_LIST, and WC_COMPANY_COLOUR.

Referenced by CmdAddVehicleGroup().

◆ CmdDeleteGroup()

CommandCost CmdDeleteGroup	(	DoCommandFlags	flags,
		GroupID	group_id
	)

Add all vehicles in the given group to the default group and then deletes the group.

Parameters

flags	type of operation
group_id	index of group

Returns: the cost of this operation or an error

Definition at line 384 of file group_cmd.cpp.

References _current_company, Group::children, OrderBackup::ClearGroup(), CloseWindowById(), CMD_ERROR, Execute, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::Get(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_company_pool >::Get(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), GetWindowClassForVehicleType(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem< Tpool >::index, InvalidateWindowData(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_enginerenew_pool >::Iterate(), Group::number, Group::owner, Group::parent, FreeUnitIDGenerator::ReleaseID(), RemoveEngineReplacementForCompany(), BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test(), Group::vehicle_type, VL_GROUP_LIST, WC_COMPANY_COLOUR, and WC_REPLACE_VEHICLE.

◆ CmdRemoveAllVehiclesGroup()

CommandCost CmdRemoveAllVehiclesGroup	(	DoCommandFlags	flags,
		GroupID	group_id
	)

Remove all vehicles from a group.

Parameters

flags	type of operation
group_id	index of group

Returns: the cost of this operation or an error

Definition at line 647 of file group_cmd.cpp.

References _current_company, CMD_ERROR, DEFAULT_GROUP, Execute, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), GetWindowClassForVehicleType(), InvalidateWindowData(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_vehicle_pool >::Iterate(), Group::owner, BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test(), VehicleListIdentifier::ToWindowNumber(), Group::vehicle_type, and VL_GROUP_LIST.

◆ CmdSetGroupFlag()

CommandCost CmdSetGroupFlag	(	DoCommandFlags	flags,
		GroupID	group_id,
		GroupFlag	flag,
		bool	value,
		bool	recursive
	)

(Un)set group flag from a group

Parameters

flags	type of operation
group_id	index of group array
flag	flag to set, by value not bit.
value	value to set the flag to.
recursive	to apply to sub-groups.

Returns: the cost of this operation or an error

Definition at line 732 of file group_cmd.cpp.

References _current_company, CMD_ERROR, Execute, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), GetWindowClassForVehicleType(), InvalidateWindowData(), Group::owner, ReplaceProtection, ReplaceWagonRemoval, SetGroupFlag(), SetWindowDirty(), BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test(), VehicleListIdentifier::ToWindowNumber(), Group::vehicle_type, VL_GROUP_LIST, and WC_REPLACE_VEHICLE.

◆ CmdSetGroupLivery()

CommandCost CmdSetGroupLivery	(	DoCommandFlags	flags,
		GroupID	group_id,
		bool	primary,
		Colours	colour
	)

Set the livery for a vehicle group.

Parameters

flags	Command flags.
group_id	Group ID.
primary	Set primary instead of secondary colour
colour	Colour.

Definition at line 677 of file group_cmd.cpp.

References _current_company, CMD_ERROR, Livery::colour1, Livery::colour2, Execute, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), Livery::in_use, Group::livery, MarkWholeScreenDirty(), Group::owner, Livery::Primary, PropagateChildLivery(), Livery::Secondary, BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Set(), and BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test().

◆ GetGroupNumEngines()

uint GetGroupNumEngines	(	CompanyID	company,
		GroupID	id_g,
		EngineID	id_e
	)

Get the number of engines with EngineID id_e in the group with GroupID id_g and its sub-groups.

Parameters

company	The company the group belongs to
id_g	The GroupID of the group used
id_e	The EngineID of the engine to count

Returns: The number of engines with EngineID id_e in the group

Definition at line 809 of file group_cmd.cpp.

References Group::children, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_engine_pool >::Get(), GroupStatistics::Get(), GetGroupNumEngines(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), and GroupStatistics::GetNumEngines().

Referenced by DrawEngineList(), ReplaceVehicleWindow::GenerateReplaceVehList(), GetGroupNumEngines(), InvalidateAutoreplaceWindow(), NewVehicleAvailable(), ReplaceVehicleWindow::OnClick(), and GroupStatistics::UpdateAutoreplace().

◆ GetGroupNumVehicle()

uint GetGroupNumVehicle	(	CompanyID	company,
		GroupID	id_g,
		VehicleType	type
	)

Get the number of vehicles in the group with GroupID id_g and its sub-groups.

Parameters

company	The company the group belongs to
id_g	The GroupID of the group used
type	The vehicle type of the group

Returns: The number of vehicles in the group

Definition at line 830 of file group_cmd.cpp.

References Group::children, GroupStatistics::Get(), GetGroupNumVehicle(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), and GroupStatistics::num_vehicle.

Referenced by VehicleGroupWindow::ComputeGroupInfoSize(), VehicleGroupWindow::DrawGroupInfo(), GetGroupNumVehicle(), and VehicleGroupWindow::GetWidgetString().

◆ GetGroupNumVehicleMinAge()

uint GetGroupNumVehicleMinAge	(	CompanyID	company,
		GroupID	id_g,
		VehicleType	type
	)

Get the number of vehicles above profit minimum age in the group with GroupID id_g and its sub-groups.

Parameters

company	The company the group belongs to
id_g	The GroupID of the group used
type	The vehicle type of the group

Returns: The number of vehicles above profit minimum age in the group

Definition at line 851 of file group_cmd.cpp.

References Group::children, GroupStatistics::Get(), GetGroupNumVehicleMinAge(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), and GroupStatistics::num_vehicle_min_age.

Referenced by VehicleGroupWindow::DrawGroupInfo(), and GetGroupNumVehicleMinAge().

◆ GetGroupProfitLastYearMinAge()

Money GetGroupProfitLastYearMinAge	(	CompanyID	company,
		GroupID	id_g,
		VehicleType	type
	)

Get last year's profit of vehicles above minimum age for the group with GroupID id_g and its sub-groups.

Parameters

company	The company the group belongs to
id_g	The GroupID of the group used
type	The vehicle type of the group

Returns: Last year's profit of vehicles above minimum age for the group

Definition at line 872 of file group_cmd.cpp.

References Group::children, GroupStatistics::Get(), GetGroupProfitLastYearMinAge(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::GetIfValid(), and GroupStatistics::profit_last_year_min_age.

Referenced by VehicleGroupWindow::DrawGroupInfo(), and GetGroupProfitLastYearMinAge().

◆ GetParentLivery()

const Livery * GetParentLivery ( const Group * g )

Definition at line 276 of file group_cmd.cpp.

◆ GroupIsInGroup()

bool GroupIsInGroup	(	GroupID	search,
		GroupID	group
	)

Test if GroupID group is a descendant of (or is) GroupID search.

Parameters

search	The GroupID to search in
group	The GroupID to search for

Returns: True iff group is search or a descendant of search

Definition at line 899 of file group_cmd.cpp.

References Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::Get(), and Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::IsValidID().

Referenced by CmdAlterGroup(), GenerateVehicleSortList(), and GetEngineReplacement().

◆ PropagateChildLivery()

static void PropagateChildLivery	(	const Group *	g,
		bool	reset_cache
	)

static

Propagate a livery change to a group's children, and optionally update cached vehicle colourmaps.

Parameters

g	Group to propagate colours to children.
reset_cache	Reset colourmap of vehicles in this group.

Definition at line 293 of file group_cmd.cpp.

References Group::children, Livery::colour1, Livery::colour2, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::Get(), Livery::in_use, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem< Tpool >::index, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_vehicle_pool >::Iterate(), Group::livery, Vehicle::Next(), Livery::Primary, PropagateChildLivery(), Livery::Secondary, and BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test().

Referenced by CmdAlterGroup(), CmdSetGroupLivery(), PropagateChildLivery(), and UpdateCompanyGroupLiveries().

◆ RemoveAllGroupsForCompany()

void RemoveAllGroupsForCompany ( const CompanyID company )

Definition at line 885 of file group_cmd.cpp.

◆ SetGroupFlag()

static void SetGroupFlag	(	Group *	g,
		GroupFlag	flag,
		bool	set,
		bool	children
	)

static

Set group flag for a group and its sub-groups.

Parameters

g	initial group.
set	1 to set or 0 to clear protection.

Definition at line 708 of file group_cmd.cpp.

References Group::children, Group::flags, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::Get(), BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Reset(), BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Set(), and SetGroupFlag().

Referenced by CmdSetGroupFlag(), and SetGroupFlag().

◆ SetTrainGroupID()

void SetTrainGroupID	(	Train *	v,
		GroupID	new_g
	)

Affect the groupID of a train to new_g.

Note: called in CmdAddVehicleGroup and CmdMoveRailVehicle

Parameters

v	First vehicle of the chain.
new_g	index of array group

Definition at line 755 of file group_cmd.cpp.

References Vehicle::IsFrontEngine(), Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::IsValidID(), SpecializedVehicle< T, Type >::Next(), Vehicle::owner, SetWindowDirty(), GroupStatistics::UpdateAutoreplace(), UpdateNumEngineGroup(), VEH_TRAIN, and WC_REPLACE_VEHICLE.

Referenced by AddVehicleToGroup(), and CmdMoveRailVehicle().

◆ UpdateCompanyGroupLiveries()

void UpdateCompanyGroupLiveries ( const Company * c )

Update group liveries for a company.

This is called when the LS_DEFAULT scheme is changed, to update groups with colours set to default.

Parameters

c	Company to update.

Definition at line 320 of file group_cmd.cpp.

References Livery::colour1, Livery::colour2, Livery::in_use, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem< Tpool >::index, Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::Iterate(), Group::livery, Group::owner, Group::parent, Livery::Primary, PropagateChildLivery(), Livery::Secondary, and BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test().

Referenced by UpdateCompanyLiveries().

◆ UpdateGroupChildren()

void UpdateGroupChildren ( )

Update children list for each group.

Definition at line 47 of file group_cmd.cpp.

References Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::Get(), and Pool< Titem, Tindex, Tgrowth_step, Tpool_type, Tcache >::PoolItem<&_group_pool >::Iterate().

Referenced by AfterLoadGame().

◆ UpdateNumEngineGroup()

static void UpdateNumEngineGroup	(	const Vehicle *	v,
		GroupID	old_g,
		GroupID	new_g
	)

inlinestatic

Update the num engines of a groupID.

Decrease the old one and increase the new one

Note: called in SetTrainGroupID and UpdateTrainGroupID

Parameters

v	Vehicle we have to update
old_g	index of the old group
new_g	index of the new group

Definition at line 264 of file group_cmd.cpp.

References Vehicle::engine_type, GroupStatistics::Get(), GroupStatistics::num_engines, Vehicle::owner, and BaseVehicle::type.

Referenced by AddVehicleToGroup(), SetTrainGroupID(), and UpdateTrainGroupID().

◆ UpdateTrainGroupID()

void UpdateTrainGroupID ( Train * v )

Recalculates the groupID of a train.

Should be called each time a vehicle is added to/removed from the chain,.

Note: this needs to be called too for 'wagon chains' (in the depot, without an engine); Called in CmdBuildRailVehicle, CmdBuildRailWagon, CmdMoveRailVehicle, CmdSellRailWagon

Parameters

v	First vehicle of the chain.

Definition at line 783 of file group_cmd.cpp.

References DEFAULT_GROUP, Vehicle::group_id, GroundVehicle< T, Type >::IsFreeWagon(), Vehicle::IsFrontEngine(), SpecializedVehicle< T, Type >::Next(), Vehicle::owner, SetWindowDirty(), GroupStatistics::UpdateAutoreplace(), UpdateNumEngineGroup(), VEH_TRAIN, and WC_REPLACE_VEHICLE.

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

Functions

Variables

Detailed Description

Function Documentation

◆ AddVehicleToGroup()

◆ CmdAddSharedVehicleGroup()

◆ CmdAddVehicleGroup()

◆ CmdAlterGroup()

◆ CmdCreateGroup()

◆ CmdDeleteGroup()

◆ CmdRemoveAllVehiclesGroup()

◆ CmdSetGroupFlag()

◆ CmdSetGroupLivery()

◆ GetGroupNumEngines()

◆ GetGroupNumVehicle()

◆ GetGroupNumVehicleMinAge()

◆ GetGroupProfitLastYearMinAge()

◆ GetParentLivery()

◆ GroupIsInGroup()

◆ PropagateChildLivery()

◆ RemoveAllGroupsForCompany()

◆ SetGroupFlag()

◆ SetTrainGroupID()

◆ UpdateCompanyGroupLiveries()

◆ UpdateGroupChildren()

◆ UpdateNumEngineGroup()

◆ UpdateTrainGroupID()