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/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file ai_changelog.hpp Lists all changes / additions to the API.
*
* Only new / renamed / deleted api functions will be listed here. A list of
* bug fixes can be found in the normal changelog. Note that removed API
* functions may still be available if you return an older API version
* in GetAPIVersion() in info.nut.
*
* \b 1.2.0
*
* 1.2.0 is not yet released. The following changes are not set in stone yet.
*
* API additions:
*
* \li AICargo::CT_AUTO_REFIT
* \li AICargo::CT_NO_REFIT
* \li AICargoList_StationAccepting
* \li AICompany::GetQuarterlyIncome
* \li AICompany::GetQuarterlyExpenses
* \li AICompany::GetQuarterlyCargoDelivered
* \li AICompany::GetQuarterlyPerformanceRating
* \li AICompany::GetQuarterlyCompanyValue
* \li AIController::GetOpsTillSuspend
* \li AIOrder::GetOrderRefit
* \li AIOrder::IsRefitOrder
* \li AIOrder::SetOrderRefit
* \li AITown::GetTownAuthority
* \li AIVehicle::ERR_VEHICLE_TOO_LONG in case vehicle length limit is reached
*
* API removals:
* \li AICompany::GetCompanyValue, use AICompany::GetQuarterlyCompanyValue instead.
*
* \b 1.1.2
*
* No changes
*
* \b 1.1.1
*
* No changes
*
* \b 1.1.0
*
* API additions:
* \li IsEnd for all lists.
* \li AIEventTownFounded
* \li AIIndustry::GetIndustryID
* \li AIIndustryType::INDUSTRYTYPE_TOWN
* \li AIIndustryType::INDUSTRYTYPE_UNKNOWN
* \li AIOrder::IsVoidOrder
* \li AIRail::GetName
* \li AITown::IsCity
*
* API removals:
* \li HasNext for all lists.
* \li AIAbstractList, use AIList instead.
* \li AIList::ChangeItem, use AIList::SetValue instead.
* \li AIRail::ERR_NONUNIFORM_STATIONS_DISABLED, that error is never returned anymore.
*
* Other changes:
* \li AIEngine::GetMaxTractiveEffort can be used for road vehicles.
* \li AIEngine::GetPower can be used for road vehicles.
* \li AIEngine::GetWeight can be used for road vehicles.
* \li AIIndustry::IsCargoAccepted now returns CargoAcceptState instead of a boolean.
* \li AIOrder::GetOrderFlags returns AIOrder::AIOF_INVALID for void orders as well.
* \li AIRoad::BuildDriveThroughRoadStation now allows overbuilding.
* \li AIRoad::BuildRoadStation now allows overbuilding.
*
* \b 1.0.5
*
* No changes
*
* \b 1.0.4
*
* No changes
*
* \b 1.0.3
*
* API additions:
* \li AIRail::ERR_RAILTYPE_DISALLOWS_CROSSING
*
* \b 1.0.2
*
* Other changes:
* \li AIBridge::GetPrice now returns the price of the bridge without the cost for the rail or road.
*
* \b 1.0.1
*
* API additions:
* \li AIRail::GetMaxSpeed
*
* \b 1.0.0
*
* API additions:
* \li AIBaseStation
* \li AIEngine::IsBuildable
* \li AIEventCompanyAskMerger
* \li AIIndustry::GetLastMonthTransportedPercentage
* \li AIInfo::AICONFIG_INGAME
* \li AIMarine::GetBuildCost
* \li AIOrder::AIOF_GOTO_NEAREST_DEPOT
* \li AIOrder::GetStopLocation
* \li AIOrder::SetStopLocation
* \li AIRail::RemoveRailStationTileRectangle
* \li AIRail::RemoveRailWaypointTileRectangle
* \li AIRail::GetBuildCost
* \li AIRoad::GetBuildCost
* \li AISubsidy::SubsidyParticipantType
* \li AISubsidy::GetSourceType
* \li AISubsidy::GetSourceIndex
* \li AISubsidy::GetDestinationType
* \li AISubsidy::GetDestinationIndex
* \li AITile::GetBuildCost
* \li AITown::GetLastMonthTransportedPercentage
* \li AIVehicleList_Depot
* \li AIWaypoint::WaypointType
* \li AIWaypoint::HasWaypointType
* \li Some error messages to AIWaypoint
*
* API removals:
* \li AIOrder::ChangeOrder, use AIOrder::SetOrderFlags instead
* \li AIRail::RemoveRailStationTileRect, use AIRail::RemoveRailStationTileRectangle instead
* \li AIRail::RemoveRailWaypoint, use AIRail::RemoveRailWaypointTileRectangle instead
* \li AISign::GetMaxSignID, use AISignList instead
* \li AIStation::ERR_STATION_TOO_LARGE, use AIError::ERR_STATION_TOO_SPREAD_OUT instead
* \li AISubsidy::SourceIsTown, use AISubsidy::GetSourceType instead
* \li AISubsidy::GetSource, use AISubsidy::GetSourceIndex instead
* \li AISubsidy::DestinationIsTown, use AISubsidy::GetDestinationType instead
* \li AISubsidy::GetDestination, use AISubsidy::GetDestinationIndex instead
* \li AITile::GetHeight, use AITile::GetMinHeight/GetMaxHeight/GetCornerHeight instead
* \li AITown::GetMaxProduction, use AITown::GetLastMonthProduction instead
* \li AIVehicle::SkipToVehicleOrder, use AIOrder::SkipToOrder instead
* \li AIWaypoint::WAYPOINT_INVALID, use AIBaseStation::STATION_INVALID instead
*
* Other changes:
* \li The GetName / SetName / GetLocation functions were moved from AIStation
* and AIWaypoint to AIBaseStation, but you can still use AIStation.GetName
* as before
* \li The GetConstructionDate function was moved from AIStation to
* AIBaseStation, but can still be used as AIStation.GetConstructionDate
* \li WaypointID was replaced by StationID. All WaypointIDs from previous
* savegames are invalid. Use STATION_INVALID instead of WAYPOINT_INVALID
* \li AIWaypointList constructor now needs a WaypointType similiar to AIStationList,
* it can also handle buoys.
* \li AIVehicleList_Station now also works for waypoints
* \li Stations can be build over rail without signals that is in the right
* direction for the to-be built station. It will also convert the rail if
* the station's rail type supports the old type.
* \li GetAPIVersion() was added as function to info.nut. If it does not exist
* API version 0.7 is assumed. This function should return the major and
* minor number of the stable version of the API the AI is written against.
* For 0.7.2 that would be 0.7, for 1.1.3 it would be 1.1, etc.
* \li The subsidy logic has changed. Subsidy is now awarded when cargo
* originating from subsidy source is delivered to station that has subsidy
* destination it its catchment area. One industry tile or one town house
* is enough as long as station accepts the cargo. Awarded subsidies are no
* longer bound to stations used for first delivery, any station can be
* used for loading and unloading as long as cargo is transfered from
* source to destination.
* \li Make AIEngine:CanRefitCargo() not report refittability to mail by
* default for aircraft. It is not necessarily true. This means that even
* if the aircraft can carry mail (as secondary cargo) it does not return
* true if the aircraft cannot carry it as its only cargo.
* \li Improve behaviour of AIEngine::GetCargoType(), AIEventEnginePreview::GetCargoType()
* and AIEngine::CanRefitCargo() for articulated vehicles. For
* CanRefitCargo true is returned if at least one part can be refitted.
* For GetCargoType the first most used cargo type is returned.
* \li AIIndustryType::GetConstructionCost() now returns -1 if the industry is
* neither buildable nor prospectable.
* \li AIEngine::IsValidEngine will now return true if you have at least one
* vehicle of that type in your company, regardless if it's still buildable
* or not. AIEngine::IsBuildable returns only true when you can actually
* build an engine.
* \li AITile::GetCargoProduction will now return the number of producers,
* including houses instead the number of producing tiles. This means that
* also industries that do not have a tile within the radius, but where
* the search bounding box and the industry's bounding box intersect, are
* counted. Previously these industries (and their cargos), although they
* produced cargo for a station at the given location, were not returned.
* \li AIRail::BuildRail will now fail completely if there is an obstacle
* between the begin and end, instead of building up to the obstacle and
* returning that everything went okay.
* \li Orders for buoys are now waypoint orders, i.e. instead of using the
* station orders for buoys one has to use waypoint orders.
* \li Autoreplaces can now also be set for the default group via AIGroup.
*
* \b 0.7.5
*
* No changes
*
* \b 0.7.4
*
* No changes
*
* \b 0.7.3
*
* API additions:
* \li AIAbstractList::SORT_ASCENDING
* \li AIAbstractList::SORT_DESCENDING
* \li AIAirport::IsAirportInformationAvailable
* \li AICompany::GetPresidentGender
* \li AICompany::SetPresidentGender
* \li AIEngine::GetDesignDate
* \li AIStation::GetConstructionDate
*
* Other changes:
* \li AIs are now killed when they execute a DoCommand or Sleep at a time
* they are not allowed to do so.
* \li When the API requests a string as parameter you can give every squirrel
* type and it will be converted to a string
* \li AIs can create subclasses of API classes and use API constants as part
* of their own constants
*
* \b 0.7.2
*
* API additions:
* \li AIVehicle::GetReliability
*
* Other changes:
* \li DoCommands and sleeps in call, acall, pcall and valuators are disallowed
*
* \b 0.7.1
*
* API additions:
* \li AIAirport::GetPrice
* \li AIController::GetVersion
* \li AIOrder::AIOF_DEPOT_FLAGS
* \li AIOrder::AIOF_STOP_IN_DEPOT
* \li AIOrder::IsCurrentOrderPartOfOrderList
* \li AIOrder::IsGotoDepotOrder
* \li AIOrder::IsGotoStationOrder
* \li AIOrder::IsGotoWaypointOrder
* \li AISignList
* \li AITile::CORNER_[WSEN]
* \li AITile::ERR_AREA_ALREADY_FLAT
* \li AITile::ERR_EXCAVATION_WOULD_DAMAGE
* \li AITile::GetCornerHeight
* \li AITile::GetMaxHeight
* \li AITile::GetMinHeight
* \li AIVehicle::SendVehicleToDepotForServicing
*
* Other changes:
* \li GetURL() was added as optional function to info.nut
* \li UseAsRandomAI() was added as optional function to info.nut
* \li A limit was introduced on the time the AI spends in the constructor and Load function
*
* \b 0.7.0
* \li First stable release with the NoAI framework.
*/
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