null_s.h

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/*
 * 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 <http://www.gnu.org/licenses/>.
 */
 
#ifndef SOUND_NULL_H
#define SOUND_NULL_H
 
#include "sound_driver.hpp"
 
class SoundDriver_Null : public SoundDriver {
public:
  std::optional<std::string_view> Start(const StringList &) override { return std::nullopt; }
 
  void Stop() override { }
  std::string_view GetName() const override { return "null"; }
  bool HasOutput() const override { return false; }
};
 
class FSoundDriver_Null : public DriverFactoryBase {
public:
  FSoundDriver_Null() : DriverFactoryBase(Driver::DT_SOUND, 1, "null", "Null Sound Driver") {}
  Driver *CreateInstance() const override { return new SoundDriver_Null(); }
};
 
#endif /* SOUND_NULL_H */