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Location: cpp/openttd-patchpack/source/src/script/api/script_engine.hpp - annotation
r26799:826b1c52a903
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Fix: no ScriptEvent sub class should export constructors to scripts
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r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r24061:a798207d2b21 r18500:14a481bc4437 r18500:14a481bc4437 r18500:14a481bc4437 | /*
* 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 script_engine.hpp Everything to query and build engines. */
#ifndef SCRIPT_ENGINE_HPP
#define SCRIPT_ENGINE_HPP
#include "script_vehicle.hpp"
#include "script_rail.hpp"
#include "script_airport.hpp"
#include "script_date.hpp"
/**
* Class that handles all engine related functions.
* @api ai game
*/
class ScriptEngine : public ScriptObject {
public:
/**
* Checks whether the given engine type is valid.
* An engine is valid for a company if it has at least one vehicle of this engine or it's currently buildable.
* @game Outside ScriptCompanyMode scope the function reports all engines valid, which were or will be available at some point.
* @param engine_id The engine to check.
* @return True if and only if the engine type is valid.
*/
static bool IsValidEngine(EngineID engine_id);
/**
* Checks whether the given engine type is buildable for a company.
* @game Outside ScriptCompanyMode scope the function checks whether the engine is currently buildable by all companies (no exclusive preview).
* @param engine_id The engine to check.
* @return True if and only if the engine type is buildable.
*/
static bool IsBuildable(EngineID engine_id);
/**
* Get the name of an engine.
* @param engine_id The engine to get the name of.
* @pre IsValidEngine(engine_id).
* @return The name the engine has.
*/
static char *GetName(EngineID engine_id);
/**
* Get the cargo-type of an engine. In case it can transport multiple cargoes, it
* returns the first/main.
* @param engine_id The engine to get the cargo-type of.
* @pre IsValidEngine(engine_id).
* @return The cargo-type of the engine.
*/
static CargoID GetCargoType(EngineID engine_id);
/**
* Check if the cargo of an engine can be refitted to your requested. If
* the engine already allows this cargo, the function also returns true.
* In case of articulated vehicles the function decides whether at least one
* part can carry the cargo.
* @param engine_id The engine to check for refitting.
* @param cargo_id The cargo to check for refitting.
* @pre IsValidEngine(engine_id).
* @pre ScriptCargo::IsValidCargo(cargo_id).
* @return True if the engine can carry this cargo, either via refit, or
* by default.
*/
static bool CanRefitCargo(EngineID engine_id, CargoID cargo_id);
/**
* Check if the engine can pull a wagon with the given cargo.
* @param engine_id The engine to check.
* @param cargo_id The cargo to check.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_RAIL.
* @pre ScriptCargo::IsValidCargo(cargo_id).
* @return True if the engine can pull wagons carrying this cargo.
* @note This function is not exhaustive; a true here does not mean
* that the vehicle can pull the wagons, a false does mean it can't.
*/
static bool CanPullCargo(EngineID engine_id, CargoID cargo_id);
/**
* Get the capacity of an engine. In case it can transport multiple cargoes, it
* returns the first/main.
* @param engine_id The engine to get the capacity of.
* @pre IsValidEngine(engine_id).
* @return The capacity of the engine.
*/
static int32 GetCapacity(EngineID engine_id);
/**
* Get the reliability of an engine. The value is between 0 and 100, where
* 100 means 100% reliability (never breaks down) and 0 means 0%
* reliability (you most likely don't want to buy it).
* @param engine_id The engine to get the reliability of.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) != ScriptVehicle::VT_TRAIN || !IsWagon(engine_id).
* @return The reliability the engine has.
*/
static int32 GetReliability(EngineID engine_id);
/**
* Get the maximum speed of an engine.
* @param engine_id The engine to get the maximum speed of.
* @pre IsValidEngine(engine_id).
* @return The maximum speed the engine has.
* @note The speed is in OpenTTD's internal speed unit.
* This is mph / 1.6, which is roughly km/h.
* To get km/h multiply this number by 1.00584.
*/
static int32 GetMaxSpeed(EngineID engine_id);
/**
* Get the new cost of an engine.
* @param engine_id The engine to get the new cost of.
* @pre IsValidEngine(engine_id).
* @return The new cost the engine has.
*/
static Money GetPrice(EngineID engine_id);
/**
* Get the maximum age of a brand new engine.
* @param engine_id The engine to get the maximum age of.
* @pre IsValidEngine(engine_id).
* @returns The maximum age of a new engine in days.
* @note Age is in days; divide by 366 to get per year.
*/
static int32 GetMaxAge(EngineID engine_id);
/**
* Get the running cost of an engine.
* @param engine_id The engine to get the running cost of.
* @pre IsValidEngine(engine_id).
* @return The running cost of a vehicle per year.
* @note Cost is per year; divide by 365 to get per day.
*/
static Money GetRunningCost(EngineID engine_id);
/**
* Get the power of an engine.
* @param engine_id The engine to get the power of.
* @pre IsValidEngine(engine_id).
* @pre (GetVehicleType(engine_id) == ScriptVehicle::VT_RAIL || GetVehicleType(engine_id) == ScriptVehicle::VT_ROAD) && !IsWagon(engine_id).
* @return The power of the engine in hp.
*/
static int32 GetPower(EngineID engine_id);
/**
* Get the weight of an engine.
* @param engine_id The engine to get the weight of.
* @pre IsValidEngine(engine_id).
* @pre (GetVehicleType(engine_id) == ScriptVehicle::VT_RAIL || GetVehicleType(engine_id) == ScriptVehicle::VT_ROAD).
* @return The weight of the engine in metric tons.
*/
static int32 GetWeight(EngineID engine_id);
/**
* Get the maximum tractive effort of an engine.
* @param engine_id The engine to get the maximum tractive effort of.
* @pre IsValidEngine(engine_id).
* @pre (GetVehicleType(engine_id) == ScriptVehicle::VT_RAIL || GetVehicleType(engine_id) == ScriptVehicle::VT_ROAD) && !IsWagon(engine_id).
* @return The maximum tractive effort of the engine in kN.
*/
static int32 GetMaxTractiveEffort(EngineID engine_id);
/**
* Get the date this engine was designed.
* @param engine_id The engine to get the design date of.
* @pre IsValidEngine(engine_id).
* @return The date this engine was designed.
*/
static ScriptDate::Date GetDesignDate(EngineID engine_id);
/**
* Get the type of an engine.
* @param engine_id The engine to get the type of.
* @pre IsValidEngine(engine_id).
* @return The type the engine has.
*/
static ScriptVehicle::VehicleType GetVehicleType(EngineID engine_id);
/**
* Check if an engine is a wagon.
* @param engine_id The engine to check.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_RAIL.
* @return Whether or not the engine is a wagon.
*/
static bool IsWagon(EngineID engine_id);
/**
* Check if a train vehicle can run on a RailType.
* @param engine_id The engine to check.
* @param track_rail_type The type you want to check.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_RAIL.
* @pre ScriptRail::IsRailTypeAvailable(track_rail_type).
* @return Whether an engine of type 'engine_id' can run on 'track_rail_type'.
* @note Even if a train can run on a RailType that doesn't mean that it'll be
* able to power the train. Use HasPowerOnRail for that.
*/
static bool CanRunOnRail(EngineID engine_id, ScriptRail::RailType track_rail_type);
/**
* Check if a train engine has power on a RailType.
* @param engine_id The engine to check.
* @param track_rail_type Another RailType.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_RAIL.
* @pre ScriptRail::IsRailTypeAvailable(track_rail_type).
* @return Whether an engine of type 'engine_id' has power on 'track_rail_type'.
*/
static bool HasPowerOnRail(EngineID engine_id, ScriptRail::RailType track_rail_type);
/**
* Check if a road vehicle can run on a RoadType.
* @param engine_id The engine to check.
* @param road_type Another RoadType.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_ROAD.
* @pre ScriptRoad::IsRoadTypeAvailable(road_type).
* @return Whether an engine of type 'engine_id' can run on 'road_type'.
*/
static bool CanRunOnRoad(EngineID engine_id, ScriptRoad::RoadType road_type);
/**
* Check if a road vehicle has power on a RoadType.
* @param engine_id The engine to check.
* @param road_type Another RoadType.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_ROAD.
* @pre ScriptRoad::IsRoadTypeAvailable(road_type).
* @return Whether an engine of type 'engine_id' has power on 'road_type'.
*/
static bool HasPowerOnRoad(EngineID engine_id, ScriptRoad::RoadType road_type);
/**
* Get the RoadType of the engine.
* @param engine_id The engine to get the RoadType of.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_ROAD.
* @return The RoadType the engine has.
*/
static ScriptRoad::RoadType GetRoadType(EngineID engine_id);
/**
* Get the RailType of the engine.
* @param engine_id The engine to get the RailType of.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_RAIL.
* @return The RailType the engine has.
*/
static ScriptRail::RailType GetRailType(EngineID engine_id);
/**
* Check if the engine is articulated.
* @param engine_id The engine to check.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_ROAD || GetVehicleType(engine_id) == ScriptVehicle::VT_RAIL.
* @return True if the engine is articulated.
*/
static bool IsArticulated(EngineID engine_id);
/**
* Get the PlaneType of the engine.
* @param engine_id The engine to get the PlaneType of.
* @pre IsValidEngine(engine_id).
* @pre GetVehicleType(engine_id) == ScriptVehicle::VT_AIR.
* @return The PlaneType the engine has.
*/
static ScriptAirport::PlaneType GetPlaneType(EngineID engine_id);
/**
* Get the maximum allowed distance between two orders for an engine.
* The distance returned is a vehicle-type specific distance independent from other
* map distances, you may use the result of this function to compare it
* with the result of ScriptOrder::GetOrderDistance.
* @param engine_id The engine to get the max distance for.
* @pre IsValidEngine(engine_id).
* @return The maximum distance between two orders for the engine
* or 0 if the distance is unlimited.
* @note The unit of the order distances is unspecified and should
* not be compared with map distances
* @see ScriptOrder::GetOrderDistance
*/
static uint GetMaximumOrderDistance(EngineID engine_id);
/**
* Allows a company to use an engine before its intro date or after retirement.
* @param engine_id The engine to enable.
* @param company_id The company to allow using the engine.
* @pre IsValidEngine(engine_id).
* @pre ScriptCompany.ResolveCompanyID(company_id) != ScriptCompany::COMPANY_INVALID.
* @return True if the action succeeded.
* @api -ai
*/
static bool EnableForCompany(EngineID engine_id, ScriptCompany::CompanyID company_id);
/**
* Forbids a company to use an engine before its natural retirement.
* @param engine_id The engine to disable.
* @param company_id The company to forbid using the engine.
* @pre IsValidEngine(engine_id).
* @pre ScriptCompany.ResolveCompanyID(company_id) != ScriptCompany::COMPANY_INVALID.
* @return True if the action succeeded.
* @api -ai
*/
static bool DisableForCompany(EngineID engine_id, ScriptCompany::CompanyID company_id);
};
#endif /* SCRIPT_ENGINE_HPP */
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