Class that handles all group related functions. More...

Inheritance diagram for AIGroup:

Public Types
enum	GroupID { GROUP_ALL, GROUP_DEFAULT, GROUP_INVALID }
	The group IDs of some special groups. More...

Static Public Member Functions
static bool	IsValidGroup (GroupID group_id)
	Checks whether the given group is valid. More...

static GroupID	CreateGroup (AIVehicle::VehicleType vehicle_type, GroupID parent_group_id)
	Create a new group. More...

static bool	DeleteGroup (GroupID group_id)
	Delete the given group. More...

static AIVehicle::VehicleType	GetVehicleType (GroupID group_id)
	Get the vehicle type of a group. More...

static bool	SetName (GroupID group_id, Text *name)
	Set the name of a group. More...

static std::optional< std::string >	GetName (GroupID group_id)
	Get the name of a group. More...

static bool	SetParent (GroupID group_id, GroupID parent_group_id)
	Set parent group of a group. More...

static GroupID	GetParent (GroupID group_id)
	Get parent group of a group. More...

static bool	EnableAutoReplaceProtection (GroupID group_id, bool enable)
	Enable or disable autoreplace protected. More...

static bool	GetAutoReplaceProtection (GroupID group_id)
	Get the autoreplace protection status. More...

static SQInteger	GetNumEngines (GroupID group_id, EngineID engine_id)
	Get the number of engines in a given group. More...

static SQInteger	GetNumVehicles (GroupID group_id, AIVehicle::VehicleType vehicle_type)
	Get the total number of vehicles in a given group and its sub-groups. More...

static bool	MoveVehicle (GroupID group_id, VehicleID vehicle_id)
	Move a vehicle to a group. More...

static bool	EnableWagonRemoval (bool keep_length)
	Enable or disable the removal of wagons when a (part of a) vehicle is (auto)replaced with a longer variant (longer wagons or longer engines) If enabled, wagons are removed from the end of the vehicle until it fits in the same number of tiles as it did before. More...

static bool	HasWagonRemoval ()
	Get the current status of wagon removal. More...

static bool	SetAutoReplace (GroupID group_id, EngineID engine_id_old, EngineID engine_id_new)
	Start replacing all vehicles with a specified engine with another engine. More...

static EngineID	GetEngineReplacement (GroupID group_id, EngineID engine_id)
	Get the EngineID the given EngineID is replaced with. More...

static bool	StopAutoReplace (GroupID group_id, EngineID engine_id)
	Stop replacing a certain engine in the specified group. More...

static Money	GetProfitThisYear (GroupID group_id)
	Get the current profit of a group. More...

static Money	GetProfitLastYear (GroupID group_id)
	Get the profit of last year of a group. More...

static SQInteger	GetCurrentUsage (GroupID group_id)
	Get the current vehicle usage of a group. More...

static bool	SetPrimaryColour (GroupID group_id, AICompany::Colours colour)
	Set primary colour for a group. More...

static bool	SetSecondaryColour (GroupID group_id, AICompany::Colours colour)
	Set secondary colour for a group. More...

static AICompany::Colours	GetPrimaryColour (GroupID group_id)
	Get primary colour of a group. More...

static AICompany::Colours	GetSecondaryColour (GroupID group_id)
	Get secondary colour for a group. More...

Detailed Description

Class that handles all group related functions.

Member Enumeration Documentation

◆ GroupID

enum AIGroup::GroupID

The group IDs of some special groups.

Enumerator
GROUP_ALL	All vehicles are in this group.
GROUP_DEFAULT	Vehicles not put in any other group are in this one.
GROUP_INVALID	An invalid group id.

Member Function Documentation

◆ CreateGroup()

static GroupID AIGroup::CreateGroup	(	AIVehicle::VehicleType	vehicle_type,
		GroupID	parent_group_id
	)

static

Create a new group.

Parameters

vehicle_type	The type of vehicle to create a group for.
parent_group_id	The parent group id to create this group under, INVALID_GROUP for top-level.

Returns: The GroupID of the new group, or an invalid GroupID when it failed. Check the return value using IsValidGroup(). In test-mode 0 is returned if it was successful; any other value indicates failure.

◆ DeleteGroup()

static bool AIGroup::DeleteGroup ( GroupID group_id )

static

Delete the given group.

When the deletion succeeds all vehicles in the given group will move to the GROUP_DEFAULT.

Parameters

group_id The group to delete.

Precondition: IsValidGroup(group_id).

Returns: True if and only if the group was successfully deleted.

◆ EnableAutoReplaceProtection()

static bool AIGroup::EnableAutoReplaceProtection	(	GroupID	group_id,
		bool	enable
	)

static

Enable or disable autoreplace protected.

If the protection is enabled, global autoreplace won't affect vehicles in this group.

Parameters

group_id	The group to change the protection for.
enable	True if protection should be enabled.

Precondition: IsValidGroup(group_id).

Returns: True if and only if the protection was successfully changed.

◆ EnableWagonRemoval()

static bool AIGroup::EnableWagonRemoval ( bool keep_length )

static

Enable or disable the removal of wagons when a (part of a) vehicle is (auto)replaced with a longer variant (longer wagons or longer engines) If enabled, wagons are removed from the end of the vehicle until it fits in the same number of tiles as it did before.

Parameters

keep_length If true, wagons will be removed if the new engine is longer.

Returns: True if and only if the value was successfully changed.

◆ GetAutoReplaceProtection()

static bool AIGroup::GetAutoReplaceProtection ( GroupID group_id )

static

Get the autoreplace protection status.

Parameters

group_id The group to get the protection status for.

Precondition: IsValidGroup(group_id).

Returns: The autoreplace protection status for the given group.

◆ GetCurrentUsage()

static SQInteger AIGroup::GetCurrentUsage ( GroupID group_id )

static

Get the current vehicle usage of a group.

Parameters

group_id The group to get the current usage of.

Precondition: IsValidGroup(group_id).

Returns: The current usage of the group.

◆ GetEngineReplacement()

static EngineID AIGroup::GetEngineReplacement	(	GroupID	group_id,
		EngineID	engine_id
	)

static

Get the EngineID the given EngineID is replaced with.

Parameters

group_id	The group to get the replacement from.
engine_id	The engine that is being replaced.

Precondition: IsValidGroup(group_id) || group_id == GROUP_DEFAULT || group_id == GROUP_ALL.

Returns: The EngineID that is replacing engine_id or an invalid EngineID in case engine_id is not begin replaced.

◆ GetName()

static std::optional<std::string> AIGroup::GetName ( GroupID group_id )

static

Get the name of a group.

Parameters

group_id The group to get the name of.

Precondition: IsValidGroup(group_id).

Returns: The name the group has.

◆ GetNumEngines()

static SQInteger AIGroup::GetNumEngines	(	GroupID	group_id,
		EngineID	engine_id
	)

static

Get the number of engines in a given group.

Parameters

group_id	The group to get the number of engines in.
engine_id	The engine id to count.

Precondition: AIEngine::IsValidEngine(engine_id).; (IsValidGroup(group_id) && AIEngine::GetVehicleType(engine_id) == GetVehicleType(group_id)) || group_id == GROUP_ALL || group_id == GROUP_DEFAULT.

Returns: The number of engines with id engine_id in the group with id group_id.

◆ GetNumVehicles()

static SQInteger AIGroup::GetNumVehicles	(	GroupID	group_id,
		AIVehicle::VehicleType	vehicle_type
	)

static

Get the total number of vehicles in a given group and its sub-groups.

Parameters

group_id	The group to get the number of vehicles in.
vehicle_type	The type of vehicle of the group.

Precondition: IsValidGroup(group_id) || group_id == GROUP_ALL || group_id == GROUP_DEFAULT.; IsValidGroup(group_id) || vehicle_type == AIVehicle::VT_ROAD || vehicle_type == AIVehicle::VT_RAIL || vehicle_type == AIVehicle::VT_WATER || vehicle_type == AIVehicle::VT_AIR

Returns: The total number of vehicles in the group with id group_id and it's sub-groups.

Note: If the group is valid (neither GROUP_ALL nor GROUP_DEFAULT), the value of vehicle_type is retrieved from the group itself and not from the input value. But if the group is GROUP_ALL or GROUP_DEFAULT, then vehicle_type must be valid.

◆ GetParent()

static GroupID AIGroup::GetParent ( GroupID group_id )

static

Get parent group of a group.

Parameters

group_id The group to get the parent of.

Precondition: IsValidGroup(group_id).

Returns: The group id of the parent group.

◆ GetPrimaryColour()

static AICompany::Colours AIGroup::GetPrimaryColour ( GroupID group_id )

static

Get primary colour of a group.

Parameters

group_id The group id to get the colour of.

Precondition: IsValidGroup(group_id).

Returns: The primary colour of the group.

◆ GetProfitLastYear()

static Money AIGroup::GetProfitLastYear ( GroupID group_id )

static

Get the profit of last year of a group.

Parameters

group_id The group to get the profit of.

Precondition: IsValidGroup(group_id).

Returns: The current profit the group had last year.

◆ GetProfitThisYear()

static Money AIGroup::GetProfitThisYear ( GroupID group_id )

static

Get the current profit of a group.

Parameters

group_id The group to get the profit of.

Precondition: IsValidGroup(group_id).

Returns: The current profit the group has.

◆ GetSecondaryColour()

static AICompany::Colours AIGroup::GetSecondaryColour ( GroupID group_id )

static

Get secondary colour for a group.

Parameters

group_id The group id to get the colour of.

Precondition: IsValidGroup(group_id).

Returns: The secondary colour of the group.

◆ GetVehicleType()

static AIVehicle::VehicleType AIGroup::GetVehicleType ( GroupID group_id )

static

Get the vehicle type of a group.

Parameters

group_id The group to get the type from.

Precondition: IsValidGroup(group_id).

Returns: The vehicletype of the given group.

◆ HasWagonRemoval()

static bool AIGroup::HasWagonRemoval ( )

static

Get the current status of wagon removal.

Returns: Whether or not wagon removal is enabled.

◆ IsValidGroup()

static bool AIGroup::IsValidGroup ( GroupID group_id )

static

Checks whether the given group is valid.

Parameters

group_id The group to check.

Precondition: group_id != GROUP_DEFAULT && group_id != GROUP_ALL.

Returns: True if and only if the group is valid.

◆ MoveVehicle()

static bool AIGroup::MoveVehicle	(	GroupID	group_id,
		VehicleID	vehicle_id
	)

static

Move a vehicle to a group.

Parameters

group_id	The group to move the vehicle to.
vehicle_id	The vehicle to move to the group.

Precondition: IsValidGroup(group_id) || group_id == GROUP_DEFAULT.; AIVehicle::IsPrimaryVehicle(vehicle_id).

Returns: True if and only if the vehicle was successfully moved to the group.

Note: A vehicle can be in only one group at the same time. To remove it from a group, move it to another or to GROUP_DEFAULT. Moving the vehicle to the given group means removing it from another group.

◆ SetAutoReplace()

static bool AIGroup::SetAutoReplace	(	GroupID	group_id,
		EngineID	engine_id_old,
		EngineID	engine_id_new
	)

static

Start replacing all vehicles with a specified engine with another engine.

Parameters

group_id	The group to replace vehicles from. Use ALL_GROUP to replace vehicles from all groups that haven't set autoreplace protection.
engine_id_old	The engine id to start replacing.
engine_id_new	The engine id to replace with.

Precondition: IsValidGroup(group_id) || group_id == GROUP_DEFAULT || group_id == GROUP_ALL.; AIEngine.IsBuildable(engine_id_new).

Returns: True if and if the replacing was successfully started.

Note: To stop autoreplacing engine_id_old, call StopAutoReplace(group_id, engine_id_old).

◆ SetName()

static bool AIGroup::SetName	(	GroupID	group_id,
		Text *	name
	)

static

Set the name of a group.

Parameters

group_id	The group to set the name for.
name	The name for the group (can be either a raw string, or a AIText object).

Precondition: IsValidGroup(group_id).; name != null && len(name) != 0

Exceptions

AIError::ERR_NAME_IS_NOT_UNIQUE

Returns: True if and only if the name was changed.

◆ SetParent()

static bool AIGroup::SetParent	(	GroupID	group_id,
		GroupID	parent_group_id
	)

static

Set parent group of a group.

Parameters

group_id	The group to set the parent for.
parent_group_id	The parent group to set.

Precondition: IsValidGroup(group_id).; IsValidGroup(parent_group_id).

Returns: True if and only if the parent group was changed.

◆ SetPrimaryColour()

static bool AIGroup::SetPrimaryColour	(	GroupID	group_id,
		AICompany::Colours	colour
	)

static

Set primary colour for a group.

Parameters

group_id	The group id to set the colour of.
colour	Colour to set.

Precondition: IsValidGroup(group_id).

Returns: True iff the colour was set successfully.

◆ SetSecondaryColour()

static bool AIGroup::SetSecondaryColour	(	GroupID	group_id,
		AICompany::Colours	colour
	)

static

Set secondary colour for a group.

Parameters

group_id	The group id to set the colour of.
colour	Colour to set.

Precondition: IsValidGroup(group_id).

Returns: True iff the colour was set successfully.

◆ StopAutoReplace()

static bool AIGroup::StopAutoReplace	(	GroupID	group_id,
		EngineID	engine_id
	)

static

Stop replacing a certain engine in the specified group.

Parameters

group_id	The group to stop replacing the engine in.
engine_id	The engine id to stop replacing with another engine.

Precondition: IsValidGroup(group_id) || group_id == GROUP_DEFAULT || group_id == GROUP_ALL.

Returns: True if and if the replacing was successfully stopped.

Public Types

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ GroupID

Member Function Documentation

◆ CreateGroup()

◆ DeleteGroup()

◆ EnableAutoReplaceProtection()

◆ EnableWagonRemoval()

◆ GetAutoReplaceProtection()

◆ GetCurrentUsage()

◆ GetEngineReplacement()

◆ GetName()

◆ GetNumEngines()

◆ GetNumVehicles()

◆ GetParent()

◆ GetPrimaryColour()

◆ GetProfitLastYear()

◆ GetProfitThisYear()

◆ GetSecondaryColour()

◆ GetVehicleType()

◆ HasWagonRemoval()

◆ IsValidGroup()

◆ MoveVehicle()

◆ SetAutoReplace()

◆ SetName()

◆ SetParent()

◆ SetPrimaryColour()

◆ SetSecondaryColour()

◆ StopAutoReplace()