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_NULL_H 00013 #define MUSIC_NULL_H 00014 00015 #include "music_driver.hpp" 00016 00018 class MusicDriver_Null: public MusicDriver { 00019 public: 00020 /* virtual */ const char *Start(const char * const *param) { return NULL; } 00021 00022 /* virtual */ void Stop() { } 00023 00024 /* virtual */ void PlaySong(const char *filename) { } 00025 00026 /* virtual */ void StopSong() { } 00027 00028 /* virtual */ bool IsSongPlaying() { return true; } 00029 00030 /* virtual */ void SetVolume(byte vol) { } 00031 /* virtual */ const char *GetName() const { return "null"; } 00032 }; 00033 00035 class FMusicDriver_Null: public MusicDriverFactory<FMusicDriver_Null> { 00036 public: 00037 static const int priority = 1; 00038 /* virtual */ const char *GetName() { return "null"; } 00039 /* virtual */ const char *GetDescription() { return "Null Music Driver"; } 00040 /* virtual */ Driver *CreateInstance() { return new MusicDriver_Null(); } 00041 }; 00042 00043 #endif /* MUSIC_NULL_H */