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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 script_industry.hpp Everything to query and build industries. */
#ifndef SCRIPT_INDUSTRY_HPP
#define SCRIPT_INDUSTRY_HPP
#include "script_object.hpp"
/**
* Class that handles all industry related functions.
*/
class ScriptIndustry : public ScriptObject {
public:
/** Ways for an industry to accept a cargo. */
enum CargoAcceptState {
CAS_NOT_ACCEPTED, ///< The CargoID is not accepted by this industry.
CAS_ACCEPTED, ///< The industry currently accepts this CargoID.
CAS_TEMP_REFUSED, ///< The industry temporarily refuses to accept this CargoID but may do so again in the future.
};
/**
* Gets the number of industries.
* @return The number of industries.
* @note The maximum valid IndustryID can be higher than the value returned.
*/
static int32 GetIndustryCount();
/**
* Checks whether the given industry index is valid.
* @param industry_id The index to check.
* @return True if and only if the industry is valid.
*/
static bool IsValidIndustry(IndustryID industry_id);
/**
* Get the IndustryID of a tile, if there is an industry.
* @param tile The tile to find the IndustryID of.
* @return IndustryID of the industry.
* @post Use IsValidIndustry() to see if the industry is valid.
* @note GetIndustryID will return an invalid IndustryID for the
* station tile of industries with a dock/heliport.
*/
static IndustryID GetIndustryID(TileIndex tile);
/**
* Get the name of the industry.
* @param industry_id The industry to get the name of.
* @pre IsValidIndustry(industry_id).
* @return The name of the industry.
*/
static char *GetName(IndustryID industry_id);
/**
* See whether an industry currently accepts a certain cargo.
* @param industry_id The index of the industry.
* @param cargo_id The index of the cargo.
* @pre IsValidIndustry(industry_id).
* @pre ScriptCargo::IsValidCargo(cargo_id).
* @return Whether the industry accepts, temporarily refuses or never accepts this cargo.
*/
static CargoAcceptState IsCargoAccepted(IndustryID industry_id, CargoID cargo_id);
/**
* Get the amount of cargo stockpiled for processing.
* @param industry_id The index of the industry.
* @param cargo_id The index of the cargo.
* @pre IsValidIndustry(industry_id).
* @pre ScriptCargo::IsValidCargo(cargo_id).
* @return The amount of cargo that is waiting for processing.
*/
static int32 GetStockpiledCargo(IndustryID industry_id, CargoID cargo_id);
/**
* Get the total last month's production of the given cargo at an industry.
* @param industry_id The index of the industry.
* @param cargo_id The index of the cargo.
* @pre IsValidIndustry(industry_id).
* @pre ScriptCargo::IsValidCargo(cargo_id).
* @return The last month's production of the given cargo for this industry.
*/
static int32 GetLastMonthProduction(IndustryID industry_id, CargoID cargo_id);
/**
* Get the total amount of cargo transported from an industry last month.
* @param industry_id The index of the industry.
* @param cargo_id The index of the cargo.
* @pre IsValidIndustry(industry_id).
* @pre ScriptCargo::IsValidCargo(cargo_id).
* @return The amount of given cargo transported from this industry last month.
*/
static int32 GetLastMonthTransported(IndustryID industry_id, CargoID cargo_id);
/**
* Get the percentage of cargo transported from an industry last month.
* @param industry_id The index of the industry.
* @param cargo_id The index of the cargo.
* @pre IsValidIndustry(industry_id).
* @pre ScriptCargo::IsValidCargo(cargo_id).
* @return The percentage of given cargo transported from this industry last month.
*/
static int32 GetLastMonthTransportedPercentage(IndustryID industry_id, CargoID cargo_id);
/**
* Gets the location of the industry.
* @param industry_id The index of the industry.
* @pre IsValidIndustry(industry_id).
* @return The location of the industry.
*/
static TileIndex GetLocation(IndustryID industry_id);
/**
* Get the number of stations around an industry. All stations that can
* service the industry are counted, your own stations but also your
* opponents stations.
* @param industry_id The index of the industry.
* @pre IsValidIndustry(industry_id).
* @return The number of stations around an industry.
*/
static int32 GetAmountOfStationsAround(IndustryID industry_id);
/**
* Get the manhattan distance from the tile to the ScriptIndustry::GetLocation()
* of the industry.
* @param industry_id The industry to get the distance to.
* @param tile The tile to get the distance to.
* @pre IsValidIndustry(industry_id).
* @pre ScriptMap::IsValidTile(tile).
* @return The distance between industry and tile.
*/
static int32 GetDistanceManhattanToTile(IndustryID industry_id, TileIndex tile);
/**
* Get the square distance from the tile to the ScriptIndustry::GetLocation()
* of the industry.
* @param industry_id The industry to get the distance to.
* @param tile The tile to get the distance to.
* @pre IsValidIndustry(industry_id).
* @pre ScriptMap::IsValidTile(tile).
* @return The distance between industry and tile.
*/
static int32 GetDistanceSquareToTile(IndustryID industry_id, TileIndex tile);
/**
* Is this industry built on water.
* @param industry_id The index of the industry.
* @pre IsValidIndustry(industry_id).
* @return True when the industry is built on water.
*/
static bool IsBuiltOnWater(IndustryID industry_id);
/**
* Does this industry have a heliport?
* @param industry_id The index of the industry.
* @pre IsValidIndustry(industry_id).
* @return True when the industry has a heliport.
*/
static bool HasHeliport(IndustryID industry_id);
/**
* Gets the location of the industry's heliport.
* @param industry_id The index of the industry.
* @pre IsValidIndustry(industry_id).
* @pre HasHeliport(industry_id).
* @return The location of the industry's heliport.
*/
static TileIndex GetHeliportLocation(IndustryID industry_id);
/**
* Does this industry have a dock?
* @param industry_id The index of the industry.
* @pre IsValidIndustry(industry_id).
* @return True when the industry has a dock.
*/
static bool HasDock(IndustryID industry_id);
/**
* Gets the location of the industry's dock.
* @param industry_id The index of the industry.
* @pre IsValidIndustry(industry_id).
* @pre HasDock(industry_id).
* @return The location of the industry's dock.
*/
static TileIndex GetDockLocation(IndustryID industry_id);
/**
* Get the IndustryType of the industry.
* @param industry_id The index of the industry.
* @pre IsValidIndustry(industry_id).
* @return The IndustryType of the industry.
*/
static IndustryType GetIndustryType(IndustryID industry_id);
};
#endif /* SCRIPT_INDUSTRY_HPP */
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