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OpenTTD-patches/src/script/api/script_types.hpp

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C++

/*
* 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_types.hpp Defines all the types of the game, like IDs of various objects.
*
* IDs are used to identify certain objects. They are only unique within the object type, so for example a vehicle may have VehicleID 2009,
* while a station has StationID 2009 at the same time. Also IDs are assigned arbitrary, you cannot assume them to be consecutive.
* Also note that some IDs are static and never change, while others are allocated dynamically and might be
* reused for other objects once they are released. So be careful, which IDs you store for which purpose and whether they stay valid all the time.
*
* <table>
* <tr><th>type </th><th> object </th>
* <th> acquired </th>
* <th> released </th>
* <th> reused </th></tr>
* <tr><td>#BridgeID </td><td> bridge type </td>
* <td> introduction \ref newgrf_changes "(1)" </td>
* <td> never \ref newgrf_changes "(1)" </td>
* <td> no \ref newgrf_changes "(1)" </td></tr>
* <tr><td>#CargoID </td><td> cargo type </td>
* <td> game start \ref newgrf_changes "(1)" </td>
* <td> never \ref newgrf_changes "(1)" </td>
* <td> no \ref newgrf_changes "(1)" </td></tr>
* <tr><td>#EngineID </td><td> engine type </td>
* <td> introduction, preview \ref dynamic_engines "(2)" </td>
* <td> engines retires \ref dynamic_engines "(2)" </td>
* <td> no \ref dynamic_engines "(2)" </td></tr>
* <tr><td>#GoalID </td><td> goal </td>
* <td> creation </td>
* <td> deletion </td>
* <td> yes </td></tr>
* <tr><td>#GroupID </td><td> vehicle group </td>
* <td> creation </td>
* <td> deletion </td>
* <td> yes </td></tr>
* <tr><td>#IndustryID </td><td> industry </td>
* <td> construction </td>
* <td> closure </td>
* <td> yes </td></tr>
* <tr><td>#IndustryType</td><td> industry type </td>
* <td> game start \ref newgrf_changes "(1)" </td>
* <td> never \ref newgrf_changes "(1)" </td>
* <td> no </td></tr>
* <tr><td>#SignID </td><td> sign </td>
* <td> construction </td>
* <td> deletion </td>
* <td> yes </td></tr>
* <tr><td>#StationID </td><td> station </td>
* <td> construction </td>
* <td> expiration of 'grey' station sign after deletion </td>
* <td> yes </td></tr>
* <tr><td>#SubsidyID </td><td> subsidy </td>
* <td> offer announcement </td>
* <td> (offer) expiration </td>
* <td> yes </td></tr>
* <tr><td>#TileIndex </td><td> tile on map </td>
* <td> game start </td>
* <td> never </td>
* <td> no </td></tr>
* <tr><td>#TownID </td><td> town </td>
* <td> game start </td>
* <td> never </td>
* <td> no </td></tr>
* <tr><td>#VehicleID </td><td> vehicle </td>
* <td> construction, autorenew, autoreplace </td>
* <td> destruction, autorenew, autoreplace </td>
* <td> yes </td></tr>
* </table>
*
* @remarks
* \li \anchor newgrf_changes (1) in-game changes of newgrfs may reassign/invalidate IDs (will also cause other trouble though).
* \li \anchor dynamic_engines (2) engine IDs are reassigned/invalidated on changing 'allow multiple newgrf engine sets' (only allowed as long as no vehicles are built).
*/
#ifndef SCRIPT_TYPES_HPP
#define SCRIPT_TYPES_HPP
#include "../../core/overflowsafe_type.hpp"
#include "../../company_type.h"
#include <squirrel.h>
/* Define all types here, so we don't have to include the whole _type.h maze */
typedef uint BridgeType; ///< Internal name, not of any use for you.
typedef byte CargoID; ///< The ID of a cargo.
class CommandCost; ///< The cost of a command.
typedef uint16 EngineID; ///< The ID of an engine.
typedef uint16 GoalID; ///< The ID of a goal.
typedef uint16 GroupID; ///< The ID of a group.
typedef uint16 IndustryID; ///< The ID of an industry.
typedef uint8 IndustryType; ///< The ID of an industry-type.
typedef OverflowSafeInt64 Money; ///< Money, stored in a 32bit/64bit safe way. For scripts money is always in pounds.
typedef uint16 SignID; ///< The ID of a sign.
typedef uint16 StationID; ///< The ID of a station.
typedef uint32 StringID; ///< The ID of a string.
typedef uint16 SubsidyID; ///< The ID of a subsidy.
typedef uint16 StoryPageID; ///< The ID of a story page.
typedef uint16 StoryPageElementID; ///< The ID of a story page element.
typedef uint32 TileIndex; ///< The ID of a tile (just named differently).
typedef uint16 TownID; ///< The ID of a town.
typedef uint32 VehicleID; ///< The ID of a vehicle.
/* Types we defined ourself, as the OpenTTD core doesn't have them (yet) */
typedef uint ScriptErrorType;///< The types of errors inside the script framework.
typedef BridgeType BridgeID; ///< The ID of a bridge.
#endif /* SCRIPT_TYPES_HPP */