music_driver.hpp

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00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * 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.
00006  * 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.
00007  * 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/>.
00008  */
00009 
00012 #ifndef MUSIC_MUSIC_DRIVER_HPP
00013 #define MUSIC_MUSIC_DRIVER_HPP
00014 
00015 #include "../driver.h"
00016 
00018 class MusicDriver: public Driver {
00019 public:
00024   virtual void PlaySong(const char *filename) = 0;
00025 
00029   virtual void StopSong() = 0;
00030 
00035   virtual bool IsSongPlaying() = 0;
00036 
00041   virtual void SetVolume(byte vol) = 0;
00042 };
00043 
00045 class MusicDriverFactoryBase: public DriverFactoryBase {
00046 };
00047 
00052 template <class T>
00053 class MusicDriverFactory: public MusicDriverFactoryBase {
00054 public:
00055   MusicDriverFactory() { this->RegisterDriver(((T *)this)->GetName(), Driver::DT_MUSIC, ((T *)this)->priority); }
00056 
00060   const char *GetName();
00061 };
00062 
00063 extern MusicDriver *_music_driver;
00064 extern char *_ini_musicdriver;
00065 
00066 #endif /* MUSIC_MUSIC_DRIVER_HPP */

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