/* * 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 . */ /** @file null_m.h Base for the silent music playback. */ #ifndef MUSIC_NULL_H #define MUSIC_NULL_H #include "music_driver.hpp" /** The music player that does nothing. */ class MusicDriver_Null : public MusicDriver { public: const char *Start(const StringList &) override { return nullptr; } void Stop() override { } void PlaySong(const MusicSongInfo &) override { } void StopSong() override { } bool IsSongPlaying() override { return true; } void SetVolume(uint8_t) override { } const char *GetName() const override { return "null"; } }; /** Factory for the null music player. */ class FMusicDriver_Null : public DriverFactoryBase { public: FMusicDriver_Null() : DriverFactoryBase(Driver::DT_MUSIC, 1, "null", "Null Music Driver") {} Driver *CreateInstance() const override { return new MusicDriver_Null(); } }; #endif /* MUSIC_NULL_H */