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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file sound_driver.hpp Base for all sound drivers. */
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#ifndef SOUND_SOUND_DRIVER_HPP
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#define SOUND_SOUND_DRIVER_HPP
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#include "../driver.h"
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/** Base for all sound drivers. */
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class SoundDriver : public Driver {
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public:
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/** Called once every tick */
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virtual void MainLoop() {}
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/**
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* Whether the driver has an output from which the user can hear sound.
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* Or in other words, whether we should warn the user if no soundset is
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* loaded and that loading one would fix the sound problems.
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* @return True for all drivers except null.
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*/
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virtual bool HasOutput() const
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{
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return true;
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}
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/**
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* Get the currently active instance of the sound driver.
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*/
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static SoundDriver *GetInstance() {
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return static_cast<SoundDriver*>(*DriverFactoryBase::GetActiveDriver(Driver::DT_SOUND));
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}
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};
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extern std::string _ini_sounddriver;
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#endif /* SOUND_SOUND_DRIVER_HPP */
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