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

Inheritance diagram for AIOrder:

Public Types
enum	ErrorMessages { ERR_ORDER_BASE , ERR_ORDER_TOO_MANY , ERR_ORDER_TOO_FAR_AWAY_FROM_PREVIOUS_DESTINATION , ERR_ORDER_AIRCRAFT_NOT_ENOUGH_RANGE }
	All order related error messages. More...

enum	AIOrderFlags { OF_NONE , OF_NON_STOP_INTERMEDIATE , OF_NON_STOP_DESTINATION , OF_UNLOAD , OF_TRANSFER , OF_NO_UNLOAD , OF_FULL_LOAD , OF_FULL_LOAD_ANY , OF_NO_LOAD , OF_SERVICE_IF_NEEDED , OF_STOP_IN_DEPOT , OF_GOTO_NEAREST_DEPOT , OF_NON_STOP_FLAGS , OF_UNLOAD_FLAGS , OF_LOAD_FLAGS , OF_DEPOT_FLAGS , OF_INVALID }
	Flags that can be used to modify the behaviour of orders. More...

enum	OrderCondition { OC_LOAD_PERCENTAGE , OC_RELIABILITY , OC_MAX_RELIABILITY , OC_MAX_SPEED , OC_AGE , OC_REQUIRES_SERVICE , OC_UNCONDITIONALLY , OC_REMAINING_LIFETIME , OC_INVALID }
	All conditions a conditional order can depend on. More...

enum	CompareFunction { CF_EQUALS , CF_NOT_EQUALS , CF_LESS_THAN , CF_LESS_EQUALS , CF_MORE_THAN , CF_MORE_EQUALS , CF_IS_TRUE , CF_IS_FALSE , CF_INVALID }
	Comparators for conditional orders. More...

enum	OrderPosition { ORDER_CURRENT , ORDER_INVALID }
	Index in the list of orders for a vehicle. More...

enum	StopLocation { STOPLOCATION_NEAR , STOPLOCATION_MIDDLE , STOPLOCATION_FAR , STOPLOCATION_INVALID }
	Where to stop trains in a station that's longer than the train. More...

Static Public Member Functions
static bool	IsValidVehicleOrder (VehicleID vehicle_id, OrderPosition order_position)
	Checks whether the given order id is valid for the given vehicle. More...

static bool	IsGotoStationOrder (VehicleID vehicle_id, OrderPosition order_position)
	Checks whether the given order is a goto-station order. More...

static bool	IsGotoDepotOrder (VehicleID vehicle_id, OrderPosition order_position)
	Checks whether the given order is a goto-depot order. More...

static bool	IsGotoWaypointOrder (VehicleID vehicle_id, OrderPosition order_position)
	Checks whether the given order is a goto-waypoint order. More...

static bool	IsConditionalOrder (VehicleID vehicle_id, OrderPosition order_position)
	Checks whether the given order is a conditional order. More...

static bool	IsVoidOrder (VehicleID vehicle_id, OrderPosition order_position)
	Checks whether the given order is a void order. More...

static bool	IsRefitOrder (VehicleID vehicle_id, OrderPosition order_position)
	Checks whether the given order has a valid refit cargo. More...

static bool	IsCurrentOrderPartOfOrderList (VehicleID vehicle_id)
	Checks whether the current order is part of the orderlist. More...

static OrderPosition	ResolveOrderPosition (VehicleID vehicle_id, OrderPosition order_position)
	Resolves the given order index to the correct index for the given vehicle. More...

static bool	AreOrderFlagsValid (TileIndex destination, AIOrderFlags order_flags)
	Checks whether the given order flags are valid for the given destination. More...

static bool	IsValidConditionalOrder (OrderCondition condition, CompareFunction compare)
	Checks whether the given combination of condition and compare function is valid. More...

static int	GetOrderCount (VehicleID vehicle_id)
	Returns the number of orders for the given vehicle. More...

static TileIndex	GetOrderDestination (VehicleID vehicle_id, OrderPosition order_position)
	Gets the destination of the given order for the given vehicle. More...

static AIOrderFlags	GetOrderFlags (VehicleID vehicle_id, OrderPosition order_position)
	Gets the AIOrderFlags of the given order for the given vehicle. More...

static OrderPosition	GetOrderJumpTo (VehicleID vehicle_id, OrderPosition order_position)
	Gets the OrderPosition to jump to if the check succeeds of the given order for the given vehicle. More...

static OrderCondition	GetOrderCondition (VehicleID vehicle_id, OrderPosition order_position)
	Gets the OrderCondition of the given order for the given vehicle. More...

static CompareFunction	GetOrderCompareFunction (VehicleID vehicle_id, OrderPosition order_position)
	Gets the CompareFunction of the given order for the given vehicle. More...

static int	GetOrderCompareValue (VehicleID vehicle_id, OrderPosition order_position)
	Gets the value to compare against of the given order for the given vehicle. More...

static StopLocation	GetStopLocation (VehicleID vehicle_id, OrderPosition order_position)
	Gets the stoplocation of the given order for the given train. More...

static CargoID	GetOrderRefit (VehicleID vehicle_id, OrderPosition order_position)
	Gets the refit cargo type of the given order for the given vehicle. More...

static bool	SetOrderJumpTo (VehicleID vehicle_id, OrderPosition order_position, OrderPosition jump_to)
	Sets the OrderPosition to jump to if the check succeeds of the given order for the given vehicle. More...

static bool	SetOrderCondition (VehicleID vehicle_id, OrderPosition order_position, OrderCondition condition)
	Sets the OrderCondition of the given order for the given vehicle. More...

static bool	SetOrderCompareFunction (VehicleID vehicle_id, OrderPosition order_position, CompareFunction compare)
	Sets the CompareFunction of the given order for the given vehicle. More...

static bool	SetOrderCompareValue (VehicleID vehicle_id, OrderPosition order_position, int value)
	Sets the value to compare against of the given order for the given vehicle. More...

static bool	SetStopLocation (VehicleID vehicle_id, OrderPosition order_position, StopLocation stop_location)
	Sets the stoplocation of the given order for the given train. More...

static bool	SetOrderRefit (VehicleID vehicle_id, OrderPosition order_position, CargoID refit_cargo)
	Sets the refit cargo type of the given order for the given vehicle. More...

static bool	AppendOrder (VehicleID vehicle_id, TileIndex destination, AIOrderFlags order_flags)
	Appends an order to the end of the vehicle's order list. More...

static bool	AppendConditionalOrder (VehicleID vehicle_id, OrderPosition jump_to)
	Appends a conditional order to the end of the vehicle's order list. More...

static bool	InsertOrder (VehicleID vehicle_id, OrderPosition order_position, TileIndex destination, AIOrderFlags order_flags)
	Inserts an order before the given order_position into the vehicle's order list. More...

static bool	InsertConditionalOrder (VehicleID vehicle_id, OrderPosition order_position, OrderPosition jump_to)
	Appends a conditional order before the given order_position into the vehicle's order list. More...

static bool	RemoveOrder (VehicleID vehicle_id, OrderPosition order_position)
	Removes an order from the vehicle's order list. More...

static bool	SetOrderFlags (VehicleID vehicle_id, OrderPosition order_position, AIOrderFlags order_flags)
	Changes the order flags of the given order. More...

static bool	MoveOrder (VehicleID vehicle_id, OrderPosition order_position_move, OrderPosition order_position_target)
	Move an order inside the orderlist. More...

static bool	SkipToOrder (VehicleID vehicle_id, OrderPosition next_order)
	Make a vehicle execute next_order instead of its current order. More...

static bool	CopyOrders (VehicleID vehicle_id, VehicleID main_vehicle_id)
	Copies the orders from another vehicle. More...

static bool	ShareOrders (VehicleID vehicle_id, VehicleID main_vehicle_id)
	Shares the orders between two vehicles. More...

static bool	UnshareOrders (VehicleID vehicle_id)
	Removes the given vehicle from a shared orders list. More...

static int	GetOrderDistance (AIVehicle::VehicleType vehicle_type, TileIndex origin_tile, TileIndex dest_tile)
	Get the distance between two points for a vehicle type. More...

Detailed Description

Class that handles all order related functions.

Member Enumeration Documentation

◆ AIOrderFlags

enum AIOrder::AIOrderFlags

Flags that can be used to modify the behaviour of orders.

Enumerator
OF_NONE	Just go to the station/depot, stop unload if possible and load if needed.
OF_NON_STOP_INTERMEDIATE	Do not stop at the stations that are passed when going to the destination. Only for trains and road vehicles.
OF_NON_STOP_DESTINATION	Do not stop at the destination station. Only for trains and road vehicles.
OF_UNLOAD	Always unload the vehicle; only for stations. Cannot be set when OF_TRANSFER or OF_NO_UNLOAD is set.
OF_TRANSFER	Transfer instead of deliver the goods; only for stations. Cannot be set when OF_UNLOAD or OF_NO_UNLOAD is set.
OF_NO_UNLOAD	Never unload the vehicle; only for stations. Cannot be set when OF_UNLOAD, OF_TRANSFER or OF_NO_LOAD is set.
OF_FULL_LOAD	Wt till the vehicle is fully loaded; only for stations. Cannot be set when OF_NO_LOAD is set.
OF_FULL_LOAD_ANY	Wt till at least one cargo of the vehicle is fully loaded; only for stations. Cannot be set when OF_NO_LOAD is set.
OF_NO_LOAD	Do not load any cargo; only for stations. Cannot be set when OF_NO_UNLOAD, OF_FULL_LOAD or OF_FULL_LOAD_ANY is set.
OF_SERVICE_IF_NEEDED	Service the vehicle when needed, otherwise skip this order; only for depots.
OF_STOP_IN_DEPOT	Stop in the depot instead of only go there for servicing; only for depots.
OF_GOTO_NEAREST_DEPOT	Go to nearest depot.
OF_NON_STOP_FLAGS	All flags related to non-stop settings.
OF_UNLOAD_FLAGS	All flags related to unloading.
OF_LOAD_FLAGS	All flags related to loading.
OF_DEPOT_FLAGS	All flags related to depots.
OF_INVALID	For marking invalid order flags.

◆ CompareFunction

enum AIOrder::CompareFunction

Comparators for conditional orders.

Enumerator
CF_EQUALS	Skip if both values are equal.
CF_NOT_EQUALS	Skip if both values are not equal.
CF_LESS_THAN	Skip if the value is less than the limit.
CF_LESS_EQUALS	Skip if the value is less or equal to the limit.
CF_MORE_THAN	Skip if the value is more than the limit.
CF_MORE_EQUALS	Skip if the value is more or equal to the limit.
CF_IS_TRUE	Skip if the variable is true.
CF_IS_FALSE	Skip if the variable is false.
CF_INVALID	Invalid compare function, do not use.

◆ ErrorMessages

enum AIOrder::ErrorMessages

All order related error messages.

See also: ScriptErrorType

Enumerator
ERR_ORDER_BASE	Base for all order related errors.
ERR_ORDER_TOO_MANY	No more space for orders.
ERR_ORDER_TOO_FAR_AWAY_FROM_PREVIOUS_DESTINATION	Destination of new order is too far away from the previous order.
ERR_ORDER_AIRCRAFT_NOT_ENOUGH_RANGE	Aircraft has not enough range to copy/share orders.

◆ OrderCondition

enum AIOrder::OrderCondition

All conditions a conditional order can depend on.

Enumerator
OC_LOAD_PERCENTAGE	Skip based on the amount of load, value is in tons.
OC_RELIABILITY	Skip based on the reliability, value is percent (0..100).
OC_MAX_RELIABILITY	Skip based on the maximum reliability. Value in percent.
OC_MAX_SPEED	Skip based on the maximum speed, value is in OpenTTD's internal speed unit, see AIEngine::GetMaxSpeed.
OC_AGE	Skip based on the age, value is in calender-years. See also AICalendarTime
OC_REQUIRES_SERVICE	Skip when the vehicle requires service, no value.
OC_UNCONDITIONALLY	Always skip, no compare function, no value.
OC_REMAINING_LIFETIME	Skip based on the remaining lifetime in calendar-years. See also AICalendarTime
OC_INVALID	An invalid condition, do not use.

◆ OrderPosition

enum AIOrder::OrderPosition

Index in the list of orders for a vehicle.

The first order has index 0, the second order index 1, etc. The current order can be queried by using ORDER_CURRENT. Do not use ORDER_INVALID yourself, it's used as return value by for example ResolveOrderPosition.

Note: Automatic orders are hidden from scripts, so OrderPosition 0 will always be the first manual order.

Enumerator
ORDER_CURRENT	Constant that gets resolved to the current order.
ORDER_INVALID	An invalid order.

◆ StopLocation

enum AIOrder::StopLocation

Where to stop trains in a station that's longer than the train.

Enumerator
STOPLOCATION_NEAR	Stop the train as soon as it's completely in the station.
STOPLOCATION_MIDDLE	Stop the train in the middle of the station.
STOPLOCATION_FAR	Stop the train at the far end of the station.
STOPLOCATION_INVALID	An invalid stop location.

Member Function Documentation

◆ AppendConditionalOrder()

static bool AIOrder::AppendConditionalOrder	(	VehicleID	vehicle_id,
		OrderPosition	jump_to
	)

static

Appends a conditional order to the end of the vehicle's order list.

Parameters

vehicle_id	The vehicle to append the order to.
jump_to	The OrderPosition to jump to if the condition is true.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).; IsValidVehicleOrder(vehicle_id, jump_to).

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY
AIOrder::ERR_ORDER_TOO_MANY

Returns: True if and only if the order was appended.

◆ AppendOrder()

static bool AIOrder::AppendOrder	(	VehicleID	vehicle_id,
		TileIndex	destination,
		AIOrderFlags	order_flags
	)

static

Appends an order to the end of the vehicle's order list.

Parameters

vehicle_id	The vehicle to append the order to.
destination	The destination of the order.
order_flags	The flags given to the order.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).; AreOrderFlagsValid(destination, order_flags).

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY
AIOrder::ERR_ORDER_TOO_MANY
AIOrder::ERR_ORDER_TOO_FAR_AWAY_FROM_PREVIOUS_DESTINATION

Returns: True if and only if the order was appended.

◆ AreOrderFlagsValid()

static bool AIOrder::AreOrderFlagsValid	(	TileIndex	destination,
		AIOrderFlags	order_flags
	)

static

Checks whether the given order flags are valid for the given destination.

Parameters

destination	The destination of the order.
order_flags	The flags given to the order.

Returns: True if and only if the order_flags are valid for the given location.

◆ CopyOrders()

static bool AIOrder::CopyOrders	(	VehicleID	vehicle_id,
		VehicleID	main_vehicle_id
	)

static

Copies the orders from another vehicle.

The orders of the main vehicle are going to be the orders of the changed vehicle.

Parameters

vehicle_id	The vehicle to copy the orders to.
main_vehicle_id	The vehicle to copy the orders from.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).; AIVehicle::IsPrimaryVehicle(main_vehicle_id).

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY
AIOrder::ERR_ORDER_TOO_MANY
AIOrder::ERR_ORDER_AIRCRAFT_NOT_ENOUGH_RANGE

Returns: True if and only if the copying succeeded.

◆ GetOrderCompareFunction()

static CompareFunction AIOrder::GetOrderCompareFunction	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Gets the CompareFunction of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to get the compare function for.
order_position	The order to get the compare function for.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position != ORDER_CURRENT && IsConditionalOrder(vehicle_id, order_position).

Returns: The CompareFunction of the order.

◆ GetOrderCompareValue()

static int AIOrder::GetOrderCompareValue	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Gets the value to compare against of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to get the value for.
order_position	The order to get the value for.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position != ORDER_CURRENT && IsConditionalOrder(vehicle_id, order_position).

Returns: The value to compare against of the order.

◆ GetOrderCondition()

static OrderCondition AIOrder::GetOrderCondition	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Gets the OrderCondition of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to get the condition type for.
order_position	The order to get the condition type for.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position != ORDER_CURRENT && IsConditionalOrder(vehicle_id, order_position).

Returns: The OrderCondition of the order.

◆ GetOrderCount()

static int AIOrder::GetOrderCount ( VehicleID vehicle_id )

static

Returns the number of orders for the given vehicle.

Parameters

vehicle_id The vehicle to get the order count of.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).

Returns: The number of orders for the given vehicle or a negative value when the vehicle does not exist.

◆ GetOrderDestination()

static TileIndex AIOrder::GetOrderDestination	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Gets the destination of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to get the destination for.
order_position	The order to get the destination for.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position == ORDER_CURRENT || !IsConditionalOrder(vehicle_id, order_position).

Note: Giving ORDER_CURRENT as order_position will give the order that is currently being executed by the vehicle. This is not necessarily the current order as given by ResolveOrderPosition (the current index in the order list) as manual or autoservicing depot orders do not show up in the orderlist, but they can be the current order of a vehicle.

Returns: The destination tile of the order.

◆ GetOrderDistance()

static int AIOrder::GetOrderDistance	(	AIVehicle::VehicleType	vehicle_type,
		TileIndex	origin_tile,
		TileIndex	dest_tile
	)

static

Get the distance between two points for a vehicle type.

Use this function to compute the distance between two tiles wrt. a vehicle type. These vehicle-type specific distances are independent from other map distances, you may use the result of this function to compare it with the result of AIEngine::GetMaximumOrderDistance or AIVehicle::GetMaximumOrderDistance.

Parameters

vehicle_type	The vehicle type to get the distance for.
origin_tile	Origin, can be any tile or a tile of a specific station.
dest_tile	Destination, can be any tile or a tile of a specific station.

Returns: The distance between the origin and the destination for a vehicle of the given vehicle type.

Note: The unit of the order distances is unspecified and should not be compared with map distances

See also: AIEngine::GetMaximumOrderDistance and AIVehicle::GetMaximumOrderDistance

◆ GetOrderFlags()

static AIOrderFlags AIOrder::GetOrderFlags	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Gets the AIOrderFlags of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to get the destination for.
order_position	The order to get the destination for.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position == ORDER_CURRENT || (!IsConditionalOrder(vehicle_id, order_position) && !IsVoidOrder(vehicle_id, order_position)).

Note: Giving ORDER_CURRENT as order_position will give the order that is currently being executed by the vehicle. This is not necessarily the current order as given by ResolveOrderPosition (the current index in the order list) as manual or autoservicing depot orders do not show up in the orderlist, but they can be the current order of a vehicle.

Returns: The AIOrderFlags of the order.

◆ GetOrderJumpTo()

static OrderPosition AIOrder::GetOrderJumpTo	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Gets the OrderPosition to jump to if the check succeeds of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to get the OrderPosition for.
order_position	The order to get the OrderPosition for.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position != ORDER_CURRENT && IsConditionalOrder(vehicle_id, order_position).

Returns: The target of the conditional jump.

◆ GetOrderRefit()

static CargoID AIOrder::GetOrderRefit	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Gets the refit cargo type of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to get the refit cargo for.
order_position	The order to get the refit cargo for.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position == ORDER_CURRENT || IsGotoStationOrder(vehicle_id, order_position) || IsGotoDepotOrder(vehicle_id, order_position).

Note: Giving ORDER_CURRENT as order_position will give the order that is currently being executed by the vehicle. This is not necessarily the current order as given by ResolveOrderPosition (the current index in the order list) as manual or autoservicing depot orders do not show up in the orderlist, but they can be the current order of a vehicle.

Returns: The refit cargo of the order or CT_NO_REFIT if no refit is set.

◆ GetStopLocation()

static StopLocation AIOrder::GetStopLocation	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Gets the stoplocation of the given order for the given train.

Parameters

vehicle_id	The vehicle to get the value for.
order_position	The order to get the value for.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; AIVehicle::GetVehicleType(vehicle_id) == AIVehicle::VT_RAIL.; IsGotoStationOrder(vehicle_id, order_position).

Returns: The relative position where the train will stop inside a station.

◆ InsertConditionalOrder()

static bool AIOrder::InsertConditionalOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position,
		OrderPosition	jump_to
	)

static

Appends a conditional order before the given order_position into the vehicle's order list.

Parameters

vehicle_id	The vehicle to add the order to.
order_position	The order to place the new order before.
jump_to	The OrderPosition to jump to if the condition is true.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).; IsValidVehicleOrder(vehicle_id, order_position).; IsValidVehicleOrder(vehicle_id, jump_to).

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY
AIOrder::ERR_ORDER_TOO_MANY

Returns: True if and only if the order was inserted.

◆ InsertOrder()

static bool AIOrder::InsertOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position,
		TileIndex	destination,
		AIOrderFlags	order_flags
	)

static

Inserts an order before the given order_position into the vehicle's order list.

Parameters

vehicle_id	The vehicle to add the order to.
order_position	The order to place the new order before.
destination	The destination of the order.
order_flags	The flags given to the order.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id); IsValidVehicleOrder(vehicle_id, order_position).; AreOrderFlagsValid(destination, order_flags).

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY
AIOrder::ERR_ORDER_TOO_MANY
AIOrder::ERR_ORDER_TOO_FAR_AWAY_FROM_PREVIOUS_DESTINATION

Returns: True if and only if the order was inserted.

◆ IsConditionalOrder()

static bool AIOrder::IsConditionalOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Checks whether the given order is a conditional order.

Parameters

vehicle_id	The vehicle to check.
order_position	The order index to check.

Precondition: order_position != ORDER_CURRENT && IsValidVehicleOrder(vehicle_id, order_position).

Returns: True if and only if the order is a conditional order.

◆ IsCurrentOrderPartOfOrderList()

static bool AIOrder::IsCurrentOrderPartOfOrderList ( VehicleID vehicle_id )

static

Checks whether the current order is part of the orderlist.

Parameters

vehicle_id The vehicle to check.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).

Returns: True if and only if the current order is part of the order list.

Note: If the order is a non-'non-stop' order, and the vehicle is currently (un)loading at a station that is not the final destination, this function will still return true.

◆ IsGotoDepotOrder()

static bool AIOrder::IsGotoDepotOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Checks whether the given order is a goto-depot order.

Parameters

vehicle_id	The vehicle to check.
order_position	The order index to check.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).

Returns: True if and only if the order is a goto-depot order.

◆ IsGotoStationOrder()

static bool AIOrder::IsGotoStationOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Checks whether the given order is a goto-station order.

Parameters

vehicle_id	The vehicle to check.
order_position	The order index to check.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).

Returns: True if and only if the order is a goto-station order.

◆ IsGotoWaypointOrder()

static bool AIOrder::IsGotoWaypointOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Checks whether the given order is a goto-waypoint order.

Parameters

vehicle_id	The vehicle to check.
order_position	The order index to check.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).

Returns: True if and only if the order is a goto-waypoint order.

◆ IsRefitOrder()

static bool AIOrder::IsRefitOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Checks whether the given order has a valid refit cargo.

Parameters

vehicle_id	The vehicle to check.
order_position	The order index to check.

Precondition: order_position != ORDER_CURRENT && IsValidVehicleOrder(vehicle_id, order_position).

Returns: True if and only if the order is has a valid refit cargo.

◆ IsValidConditionalOrder()

static bool AIOrder::IsValidConditionalOrder	(	OrderCondition	condition,
		CompareFunction	compare
	)

static

Checks whether the given combination of condition and compare function is valid.

Parameters

condition	The condition to check.
compare	The compare function to check.

Returns: True if and only if the combination of condition and compare function is valid.

◆ IsValidVehicleOrder()

static bool AIOrder::IsValidVehicleOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Checks whether the given order id is valid for the given vehicle.

Parameters

vehicle_id	The vehicle to check the order index for.
order_position	The order index to check.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).

Returns: True if and only if the order_position is valid for the given vehicle.

◆ IsVoidOrder()

static bool AIOrder::IsVoidOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Checks whether the given order is a void order.

A void order is an order that used to be a goto station, depot or waypoint order but its destination got removed. In OpenTTD these orders as shown as "(Invalid Order)" in the order list of a vehicle.

Parameters

vehicle_id	The vehicle to check.
order_position	The order index to check.

Precondition: order_position != ORDER_CURRENT && IsValidVehicleOrder(vehicle_id, order_position).

Returns: True if and only if the order is a void order.

◆ MoveOrder()

static bool AIOrder::MoveOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position_move,
		OrderPosition	order_position_target
	)

static

Move an order inside the orderlist.

Parameters

vehicle_id	The vehicle to move the orders.
order_position_move	The order to move.
order_position_target	The target order

Precondition: IsValidVehicleOrder(vehicle_id, order_position_move).; IsValidVehicleOrder(vehicle_id, order_position_target).; order_position_move != order_position_target.

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY

Returns: True if and only if the order was moved.

Note: If the order is moved to a lower place (e.g. from 7 to 2) the target order is moved upwards (e.g. 3). If the order is moved to a higher place (e.g. from 7 to 9) the target will be moved downwards (e.g. 8).

◆ RemoveOrder()

static bool AIOrder::RemoveOrder	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Removes an order from the vehicle's order list.

Parameters

vehicle_id	The vehicle to remove the order from.
order_position	The order to remove from the order list.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY

Returns: True if and only if the order was removed.

◆ ResolveOrderPosition()

static OrderPosition AIOrder::ResolveOrderPosition	(	VehicleID	vehicle_id,
		OrderPosition	order_position
	)

static

Resolves the given order index to the correct index for the given vehicle.

If the order index was ORDER_CURRENT it will be resolved to the index of the current order (as shown in the order list). If the order with the given index does not exist it will return ORDER_INVALID.

Parameters

vehicle_id	The vehicle to check the order index for.
order_position	The order index to resolve.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).

Returns: The resolved order index.

◆ SetOrderCompareFunction()

static bool AIOrder::SetOrderCompareFunction	(	VehicleID	vehicle_id,
		OrderPosition	order_position,
		CompareFunction	compare
	)

static

Sets the CompareFunction of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to set the compare function for.
order_position	The order to set the compare function for.
compare	The new compare function of the order.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position != ORDER_CURRENT && IsConditionalOrder(vehicle_id, order_position).; compare >= CF_EQUALS && compare <= CF_IS_FALSE.

Returns: Whether the order has been/can be changed.

◆ SetOrderCompareValue()

static bool AIOrder::SetOrderCompareValue	(	VehicleID	vehicle_id,
		OrderPosition	order_position,
		int	value
	)

static

Sets the value to compare against of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to set the value for.
order_position	The order to set the value for.
value	The value to compare against.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position != ORDER_CURRENT && IsConditionalOrder(vehicle_id, order_position).; value >= 0 && value < 2048.

Returns: Whether the order has been/can be changed.

◆ SetOrderCondition()

static bool AIOrder::SetOrderCondition	(	VehicleID	vehicle_id,
		OrderPosition	order_position,
		OrderCondition	condition
	)

static

Sets the OrderCondition of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to set the condition type for.
order_position	The order to set the condition type for.
condition	The condition to compare on.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; order_position != ORDER_CURRENT && IsConditionalOrder(vehicle_id, order_position).; condition >= OC_LOAD_PERCENTAGE && condition <= OC_UNCONDITIONALLY.

Returns: Whether the order has been/can be changed.

◆ SetOrderFlags()

static bool AIOrder::SetOrderFlags	(	VehicleID	vehicle_id,
		OrderPosition	order_position,
		AIOrderFlags	order_flags
	)

static

Changes the order flags of the given order.

Parameters

vehicle_id	The vehicle to change the order of.
order_position	The order to change.
order_flags	The new flags given to the order.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; AreOrderFlagsValid(GetOrderDestination(vehicle_id, order_position), order_flags).; (order_flags & OF_GOTO_NEAREST_DEPOT) == (GetOrderFlags(vehicle_id, order_position) & OF_GOTO_NEAREST_DEPOT).

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY

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

◆ SetOrderJumpTo()

static bool AIOrder::SetOrderJumpTo	(	VehicleID	vehicle_id,
		OrderPosition	order_position,
		OrderPosition	jump_to
	)

static

Sets the OrderPosition to jump to if the check succeeds of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to set the OrderPosition for.
order_position	The order to set the OrderPosition for.
jump_to	The order to jump to if the check succeeds.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; IsValidVehicleOrder(vehicle_id, jump_to).; order_position != ORDER_CURRENT && IsConditionalOrder(vehicle_id, order_position).

Returns: Whether the order has been/can be changed.

◆ SetOrderRefit()

static bool AIOrder::SetOrderRefit	(	VehicleID	vehicle_id,
		OrderPosition	order_position,
		CargoID	refit_cargo
	)

static

Sets the refit cargo type of the given order for the given vehicle.

Parameters

vehicle_id	The vehicle to set the refit cargo for.
order_position	The order to set the refit cargo for.
refit_cargo	The cargo to refit to. The refit can be cleared by passing CT_NO_REFIT.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; IsGotoStationOrder(vehicle_id, order_position) || (IsGotoDepotOrder(vehicle_id, order_position) && refit_cargo != CT_AUTO_REFIT).; AICargo::IsValidCargo(refit_cargo) || refit_cargo == CT_AUTO_REFIT || refit_cargo == CT_NO_REFIT

Returns: Whether the order has been/can be changed.

◆ SetStopLocation()

static bool AIOrder::SetStopLocation	(	VehicleID	vehicle_id,
		OrderPosition	order_position,
		StopLocation	stop_location
	)

static

Sets the stoplocation of the given order for the given train.

Parameters

vehicle_id	The vehicle to get the value for.
order_position	The order to get the value for.
stop_location	The relative position where a train will stop inside a station.

Precondition: IsValidVehicleOrder(vehicle_id, order_position).; AIVehicle::GetVehicleType(vehicle_id) == AIVehicle::VT_RAIL.; IsGotoStationOrder(vehicle_id, order_position).; stop_location >= STOPLOCATION_NEAR && stop_location <= STOPLOCATION_FAR

Returns: Whether the order has been/can be changed.

◆ ShareOrders()

static bool AIOrder::ShareOrders	(	VehicleID	vehicle_id,
		VehicleID	main_vehicle_id
	)

static

Shares the orders between two vehicles.

The orders of the main vehicle are going to be the orders of the changed vehicle.

Parameters

vehicle_id	The vehicle to add to the shared order list.
main_vehicle_id	The vehicle to share the orders with.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).; AIVehicle::IsPrimaryVehicle(main_vehicle_id).

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY
AIOrder::ERR_ORDER_AIRCRAFT_NOT_ENOUGH_RANGE

Returns: True if and only if the sharing succeeded.

◆ SkipToOrder()

static bool AIOrder::SkipToOrder	(	VehicleID	vehicle_id,
		OrderPosition	next_order
	)

static

Make a vehicle execute next_order instead of its current order.

Parameters

vehicle_id	The vehicle that should skip some orders.
next_order	The order the vehicle should skip to.

Precondition: IsValidVehicleOrder(vehicle_id, next_order).

Exceptions

AIError::ERR_OWNED_BY_ANOTHER_COMPANY

Returns: True if and only the current order was changed.

◆ UnshareOrders()

static bool AIOrder::UnshareOrders ( VehicleID vehicle_id )

static

Removes the given vehicle from a shared orders list.

After unsharing orders, the orders list of the vehicle is empty.

Parameters

vehicle_id The vehicle to remove from the shared order list.

Precondition: AIVehicle::IsPrimaryVehicle(vehicle_id).

Returns: True if and only if the unsharing succeeded.

Public Types

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ AIOrderFlags

◆ CompareFunction

◆ ErrorMessages

◆ OrderCondition

◆ OrderPosition

◆ StopLocation

Member Function Documentation

◆ AppendConditionalOrder()

◆ AppendOrder()

◆ AreOrderFlagsValid()

◆ CopyOrders()

◆ GetOrderCompareFunction()

◆ GetOrderCompareValue()

◆ GetOrderCondition()

◆ GetOrderCount()

◆ GetOrderDestination()

◆ GetOrderDistance()

◆ GetOrderFlags()

◆ GetOrderJumpTo()

◆ GetOrderRefit()

◆ GetStopLocation()

◆ InsertConditionalOrder()

◆ InsertOrder()

◆ IsConditionalOrder()

◆ IsCurrentOrderPartOfOrderList()

◆ IsGotoDepotOrder()

◆ IsGotoStationOrder()

◆ IsGotoWaypointOrder()

◆ IsRefitOrder()

◆ IsValidConditionalOrder()

◆ IsValidVehicleOrder()

◆ IsVoidOrder()

◆ MoveOrder()

◆ RemoveOrder()

◆ ResolveOrderPosition()

◆ SetOrderCompareFunction()

◆ SetOrderCompareValue()

◆ SetOrderCondition()

◆ SetOrderFlags()

◆ SetOrderJumpTo()

◆ SetOrderRefit()

◆ SetStopLocation()

◆ ShareOrders()

◆ SkipToOrder()

◆ UnshareOrders()