src/script/api/script_news.hpp

   1 /* $Id: script_news.hpp 24286 2012-05-26 14:16:12Z frosch $ */
   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_news.hpp Everything to handle news messages. */
  11
  12 #ifndef SCRIPT_NEWS_HPP
  13 #define SCRIPT_NEWS_HPP
  14
  15 #include "script_company.hpp"
  16 #include "../../news_type.h"
  17
  18 /**
  19  * Class that handles news messages.
  20  * @api game
  21  */
  22 class ScriptNews : public ScriptObject {
  23 public:
  24         /**
  25          * Enumeration for the news types that a script can create news for.
  26          */
  27         enum NewsType {
  28                 /* Arbitrary selection of NewsTypes which might make sense for scripts */
  29                 NT_ACCIDENT          = ::NT_ACCIDENT,         ///< Category accidents.
  30                 NT_COMPANY_INFO      = ::NT_COMPANY_INFO,     ///< Category company info.
  31                 NT_ECONOMY           = ::NT_ECONOMY,          ///< Category economy.
  32                 NT_ADVICE            = ::NT_ADVICE,           ///< Category vehicle advice.
  33                 NT_ACCEPTANCE        = ::NT_ACCEPTANCE,       ///< Category acceptance changes.
  34                 NT_SUBSIDIES         = ::NT_SUBSIDIES,        ///< Category subsidies.
  35                 NT_GENERAL           = ::NT_GENERAL,          ///< Category general.
  36         };
  37
  38         /**
  39          * Reference to a game element.
  40          */
  41         enum NewsReferenceType {
  42                 /* Selection of useful game elements to refer to. */
  43                 NR_NONE     = ::NR_NONE,     ///< No reference supplied.
  44                 NR_TILE     = ::NR_TILE,     ///< Reference location, scroll to the location when clicking on the news.
  45                 NR_STATION  = ::NR_STATION,  ///< Reference station, scroll to the station when clicking on the news. Delete news when the station is deleted.
  46                 NR_INDUSTRY = ::NR_INDUSTRY, ///< Reference industry, scrolls to the industry when clicking on the news. Delete news when the industry is deleted.
  47                 NR_TOWN     = ::NR_TOWN,     ///< Reference town, scroll to the town when clicking on the news.
  48         };
  49
  50         /**
  51          * Create a news message for everybody, or for one company.
  52          * @param type The type of the news.
  53          * @param text The text message to show (can be either a raw string, or a ScriptText object).
  54          * @param company The company, or COMPANY_INVALID for all companies.
  55          * @param ref_type Type of referred game element.
  56          * @param reference The referenced game element of \a ref_type.
  57          *  - For #NR_NONE this parameter is ignored.
  58          *  - For #NR_TILE this parameter should be a valid location (ScriptMap::IsValidTile).
  59          *  - For #NR_STATION this parameter should be a valid stationID (ScriptStation::IsValidStation).
  60          *  - For #NR_INDUSTRY this parameter should be a valid industryID (ScriptIndustry::IsValidIndustry).
  61          *  - For #NR_TOWN this parameter should be a valid townID (ScriptTown::IsValidTown).
  62          * @return True if the action succeeded.
  63          * @pre type must be #NT_ECONOMY, #NT_SUBSIDIES, or #NT_GENERAL.
  64          * @pre text != NULL.
  65          * @pre company == COMPANY_INVALID || ResolveCompanyID(company) != COMPANY_INVALID.
  66          * @pre The \a reference condition must be fulfilled.
  67          */
  68         static bool Create(NewsType type, Text *text, ScriptCompany::CompanyID company, NewsReferenceType ref_type, uint32 reference);
  69 };
  70
  71 #endif /* SCRIPT_NEWS_HPP */