src/script/api/script_industry.hpp

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * 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.
   6  * 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.
   7  * 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/>.
   8  */
   9
  10 /** @file script_industry.hpp Everything to query and build industries. */
  11
  12 #ifndef SCRIPT_INDUSTRY_HPP
  13 #define SCRIPT_INDUSTRY_HPP
  14
  15 #include "script_object.hpp"
  16
  17 /**
  18  * Class that handles all industry related functions.
  19  * @api ai game
  20  */
  21 class ScriptIndustry : public ScriptObject {
  22 public:
  23         /** Ways for an industry to accept a cargo. */
  24         enum CargoAcceptState {
  25                 CAS_NOT_ACCEPTED, ///< The CargoID is not accepted by this industry.
  26                 CAS_ACCEPTED,     ///< The industry currently accepts this CargoID.
  27                 CAS_TEMP_REFUSED, ///< The industry temporarily refuses to accept this CargoID but may do so again in the future.
  28         };
  29
  30         /**
  31          * Gets the number of industries.
  32          * @return The number of industries.
  33          * @note The maximum valid IndustryID can be higher than the value returned.
  34          */
  35         static int32 GetIndustryCount();
  36
  37         /**
  38          * Checks whether the given industry index is valid.
  39          * @param industry_id The index to check.
  40          * @return True if and only if the industry is valid.
  41          */
  42         static bool IsValidIndustry(IndustryID industry_id);
  43
  44         /**
  45          * Get the IndustryID of a tile, if there is an industry.
  46          * @param tile The tile to find the IndustryID of.
  47          * @return IndustryID of the industry.
  48          * @post Use IsValidIndustry() to see if the industry is valid.
  49          * @note GetIndustryID will return an invalid IndustryID for the
  50          *   station tile of industries with a dock/heliport.
  51          */
  52         static IndustryID GetIndustryID(TileIndex tile);
  53
  54         /**
  55          * Get the name of the industry.
  56          * @param industry_id The industry to get the name of.
  57          * @pre IsValidIndustry(industry_id).
  58          * @return The name of the industry.
  59          */
  60         static char *GetName(IndustryID industry_id);
  61
  62         /**
  63          * See whether an industry currently accepts a certain cargo.
  64          * @param industry_id The index of the industry.
  65          * @param cargo_id The index of the cargo.
  66          * @pre IsValidIndustry(industry_id).
  67          * @pre ScriptCargo::IsValidCargo(cargo_id).
  68          * @return Whether the industry accepts, temporarily refuses or never accepts this cargo.
  69          */
  70         static CargoAcceptState IsCargoAccepted(IndustryID industry_id, CargoID cargo_id);
  71
  72         /**
  73          * Get the amount of cargo stockpiled for processing.
  74          * @param industry_id The index of the industry.
  75          * @param cargo_id The index of the cargo.
  76          * @pre IsValidIndustry(industry_id).
  77          * @pre ScriptCargo::IsValidCargo(cargo_id).
  78          * @return The amount of cargo that is waiting for processing.
  79          */
  80         static int32 GetStockpiledCargo(IndustryID industry_id, CargoID cargo_id);
  81
  82         /**
  83          * Get the total last month's production of the given cargo at an industry.
  84          * @param industry_id The index of the industry.
  85          * @param cargo_id The index of the cargo.
  86          * @pre IsValidIndustry(industry_id).
  87          * @pre ScriptCargo::IsValidCargo(cargo_id).
  88          * @return The last month's production of the given cargo for this industry.
  89          */
  90         static int32 GetLastMonthProduction(IndustryID industry_id, CargoID cargo_id);
  91
  92         /**
  93          * Get the total amount of cargo transported from an industry last month.
  94          * @param industry_id The index of the industry.
  95          * @param cargo_id The index of the cargo.
  96          * @pre IsValidIndustry(industry_id).
  97          * @pre ScriptCargo::IsValidCargo(cargo_id).
  98          * @return The amount of given cargo transported from this industry last month.
  99          */
 100         static int32 GetLastMonthTransported(IndustryID industry_id, CargoID cargo_id);
 101
 102         /**
 103          * Get the percentage of cargo transported from an industry last month.
 104          * @param industry_id The index of the industry.
 105          * @param cargo_id The index of the cargo.
 106          * @pre IsValidIndustry(industry_id).
 107          * @pre ScriptCargo::IsValidCargo(cargo_id).
 108          * @return The percentage of given cargo transported from this industry last month.
 109          */
 110         static int32 GetLastMonthTransportedPercentage(IndustryID industry_id, CargoID cargo_id);
 111
 112         /**
 113          * Gets the location of the industry.
 114          * @param industry_id The index of the industry.
 115          * @pre IsValidIndustry(industry_id).
 116          * @return The location of the industry.
 117          */
 118         static TileIndex GetLocation(IndustryID industry_id);
 119
 120         /**
 121          * Get the number of stations around an industry. All stations that can
 122          * service the industry are counted, your own stations but also your
 123          * opponents stations.
 124          * @param industry_id The index of the industry.
 125          * @pre IsValidIndustry(industry_id).
 126          * @return The number of stations around an industry.
 127          */
 128         static int32 GetAmountOfStationsAround(IndustryID industry_id);
 129
 130         /**
 131          * Get the manhattan distance from the tile to the ScriptIndustry::GetLocation()
 132          *  of the industry.
 133          * @param industry_id The industry to get the distance to.
 134          * @param tile The tile to get the distance to.
 135          * @pre IsValidIndustry(industry_id).
 136          * @pre ScriptMap::IsValidTile(tile).
 137          * @return The distance between industry and tile.
 138          */
 139         static int32 GetDistanceManhattanToTile(IndustryID industry_id, TileIndex tile);
 140
 141         /**
 142          * Get the square distance from the tile to the ScriptIndustry::GetLocation()
 143          *  of the industry.
 144          * @param industry_id The industry to get the distance to.
 145          * @param tile The tile to get the distance to.
 146          * @pre IsValidIndustry(industry_id).
 147          * @pre ScriptMap::IsValidTile(tile).
 148          * @return The distance between industry and tile.
 149          */
 150         static int32 GetDistanceSquareToTile(IndustryID industry_id, TileIndex tile);
 151
 152         /**
 153          * Is this industry built on water.
 154          * @param industry_id The index of the industry.
 155          * @pre IsValidIndustry(industry_id).
 156          * @return True when the industry is built on water.
 157          */
 158         static bool IsBuiltOnWater(IndustryID industry_id);
 159
 160         /**
 161          * Does this industry have a heliport?
 162          * @param industry_id The index of the industry.
 163          * @pre IsValidIndustry(industry_id).
 164          * @return True when the industry has a heliport.
 165          */
 166         static bool HasHeliport(IndustryID industry_id);
 167
 168         /**
 169          * Gets the location of the industry's heliport.
 170          * @param industry_id The index of the industry.
 171          * @pre IsValidIndustry(industry_id).
 172          * @pre HasHeliport(industry_id).
 173          * @return The location of the industry's heliport.
 174          */
 175         static TileIndex GetHeliportLocation(IndustryID industry_id);
 176
 177         /**
 178          * Does this industry have a dock?
 179          * @param industry_id The index of the industry.
 180          * @pre IsValidIndustry(industry_id).
 181          * @return True when the industry has a dock.
 182          */
 183         static bool HasDock(IndustryID industry_id);
 184
 185         /**
 186          * Gets the location of the industry's dock.
 187          * @param industry_id The index of the industry.
 188          * @pre IsValidIndustry(industry_id).
 189          * @pre HasDock(industry_id).
 190          * @return The location of the industry's dock.
 191          */
 192         static TileIndex GetDockLocation(IndustryID industry_id);
 193
 194         /**
 195          * Get the IndustryType of the industry.
 196          * @param industry_id The index of the industry.
 197          * @pre IsValidIndustry(industry_id).
 198          * @return The IndustryType of the industry.
 199          */
 200         static IndustryType GetIndustryType(IndustryID industry_id);
 201 };
 202
 203 #endif /* SCRIPT_INDUSTRY_HPP */