# null_m.h

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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_NULL_H
    00013 #define MUSIC_NULL_H
    00014
    00015 #include "music_driver.hpp"
    00016
    00017 class MusicDriver_Null: public MusicDriver {
    00018 public:
    00019   /* virtual */ const char *Start(const char * const *param) { return NULL; }
    00020
    00021   /* virtual */ void Stop() { }
    00022
    00023   /* virtual */ void PlaySong(const char *filename) { }
    00024
    00025   /* virtual */ void StopSong() { }
    00026
    00027   /* virtual */ bool IsSongPlaying() { return true; }
    00028
    00029   /* virtual */ void SetVolume(byte vol) { }
    00030   /* virtual */ const char *GetName() const { return "null"; }
    00031 };
    00032
    00033 class FMusicDriver_Null: public MusicDriverFactory<FMusicDriver_Null> {
    00034 public:
    00035   static const int priority = 1;
    00036   /* virtual */ const char *GetName() { return "null"; }
    00037   /* virtual */ const char *GetDescription() { return "Null Music Driver"; }
    00038   /* virtual */ Driver *CreateInstance() { return new MusicDriver_Null(); }
    00039 };
    00040
    00041 #endif /* MUSIC_NULL_H */