mirror of https://github.com/minetest/minetest.git
102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef SOUND_HEADER
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#define SOUND_HEADER
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#include "irrlichttypes_bloated.h"
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#include <string>
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#include <set>
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class OnDemandSoundFetcher
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{
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public:
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virtual void fetchSounds(const std::string &name,
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std::set<std::string> &dst_paths,
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std::set<std::string> &dst_datas) = 0;
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};
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struct SimpleSoundSpec
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{
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std::string name;
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float gain;
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SimpleSoundSpec(std::string name="", float gain=1.0):
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name(name),
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gain(gain)
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{}
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bool exists() {return name != "";}
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// Serialization intentionally left out
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};
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class ISoundManager
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{
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public:
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virtual ~ISoundManager(){}
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// Multiple sounds can be loaded per name; when played, the sound
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// should be chosen randomly from alternatives
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// Return value determines success/failure
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virtual bool loadSoundFile(const std::string &name,
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const std::string &filepath) = 0;
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virtual bool loadSoundData(const std::string &name,
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const std::string &filedata) = 0;
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virtual void updateListener(v3f pos, v3f vel, v3f at, v3f up) = 0;
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virtual void setListenerGain(float gain) = 0;
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// playSound functions return -1 on failure, otherwise a handle to the
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// sound. If name=="", call should be ignored without error.
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virtual int playSound(const std::string &name, bool loop,
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float volume) = 0;
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virtual int playSoundAt(const std::string &name, bool loop,
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float volume, v3f pos) = 0;
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virtual void stopSound(int sound) = 0;
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virtual bool soundExists(int sound) = 0;
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virtual void updateSoundPosition(int sound, v3f pos) = 0;
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int playSound(const SimpleSoundSpec &spec, bool loop)
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{ return playSound(spec.name, loop, spec.gain); }
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int playSoundAt(const SimpleSoundSpec &spec, bool loop, v3f pos)
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{ return playSoundAt(spec.name, loop, spec.gain, pos); }
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};
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class DummySoundManager: public ISoundManager
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{
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public:
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virtual bool loadSoundFile(const std::string &name,
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const std::string &filepath) {return true;}
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virtual bool loadSoundData(const std::string &name,
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const std::string &filedata) {return true;}
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void updateListener(v3f pos, v3f vel, v3f at, v3f up) {}
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void setListenerGain(float gain) {}
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int playSound(const std::string &name, bool loop,
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float volume) {return 0;}
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int playSoundAt(const std::string &name, bool loop,
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float volume, v3f pos) {return 0;}
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void stopSound(int sound) {}
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bool soundExists(int sound) {return false;}
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void updateSoundPosition(int sound, v3f pos) {}
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};
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// Global DummySoundManager singleton
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extern DummySoundManager dummySoundManager;
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#endif
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