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/*
Minetest-c55
Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef SOUND_HEADER
#define SOUND_HEADER
#include "irrlichttypes_bloated.h"
#include <string>
#include <set>
class OnDemandSoundFetcher
{
public:
virtual void fetchSounds(const std::string &name,
std::set<std::string> &dst_paths,
std::set<std::string> &dst_datas) = 0;
};
struct SimpleSoundSpec
{
std::string name;
float gain;
SimpleSoundSpec(std::string name="", float gain=1.0):
name(name),
gain(gain)
{}
bool exists() {return name != "";}
// Serialization intentionally left out
};
class ISoundManager
{
public:
virtual ~ISoundManager(){}
// Multiple sounds can be loaded per name; when played, the sound
// should be chosen randomly from alternatives
// Return value determines success/failure
virtual bool loadSoundFile(const std::string &name,
const std::string &filepath) = 0;
virtual bool loadSoundData(const std::string &name,
const std::string &filedata) = 0;
virtual void updateListener(v3f pos, v3f vel, v3f at, v3f up) = 0;
virtual void setListenerGain(float gain) = 0;
// playSound functions return -1 on failure, otherwise a handle to the
// sound. If name=="", call should be ignored without error.
virtual int playSound(const std::string &name, bool loop,
float volume) = 0;
virtual int playSoundAt(const std::string &name, bool loop,
float volume, v3f pos) = 0;
virtual void stopSound(int sound) = 0;
virtual bool soundExists(int sound) = 0;
virtual void updateSoundPosition(int sound, v3f pos) = 0;
int playSound(const SimpleSoundSpec &spec, bool loop)
{ return playSound(spec.name, loop, spec.gain); }
int playSoundAt(const SimpleSoundSpec &spec, bool loop, v3f pos)
{ return playSoundAt(spec.name, loop, spec.gain, pos); }
};
class DummySoundManager: public ISoundManager
{
public:
virtual bool loadSoundFile(const std::string &name,
const std::string &filepath) {return true;}
virtual bool loadSoundData(const std::string &name,
const std::string &filedata) {return true;}
void updateListener(v3f pos, v3f vel, v3f at, v3f up) {}
void setListenerGain(float gain) {}
int playSound(const std::string &name, bool loop,
float volume) {return 0;}
int playSoundAt(const std::string &name, bool loop,
float volume, v3f pos) {return 0;}
void stopSound(int sound) {}
bool soundExists(int sound) {return false;}
void updateSoundPosition(int sound, v3f pos) {}
};
// Global DummySoundManager singleton
extern DummySoundManager dummySoundManager;
#endif
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