Vamos Automotive Simulator git

//  Aan audio sample class.
//
//  Copyright (C) 2003-2019 Sam Varner
//
//  This file is part of Vamos Automotive Simulator.
//
//  Vamos 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, either version 3 of the License, or
//  (at your option) any later version.
//
//  Vamos 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 Vamos.  If not, see <http://www.gnu.org/licenses/>.

#ifndef _SAMPLE_H_
#define _SAMPLE_H_

#include "../geometry/Three_Vector.hpp"

#include <AL/alut.h>

#include <string>

namespace Vamos_Media
{
struct Missing_Sound_File : std::exception
{
    Missing_Sound_File(std::string file)
        : message("Can't find the sound file \"" + file + '\"') {}
    virtual const char* what() const noexcept override { return message.c_str(); }
    std::string message;
};

class Sample
{
public:
    Sample(std::string file, double base_volume, double base_pitch, bool loop);
    ~Sample();

    // Set the sample's volume as volume_factor * m_base_volume.
    void volume(double volume_factor);
    // Set the sample's pitch as pitch_factor * m_base_pitch.
    void pitch(double pitch_factor);
    void position(const Vamos_Geometry::Three_Vector &v);
    void velocity(const Vamos_Geometry::Three_Vector &v, bool relative = false);
    void play();
    void pause();
    void stop();

private:
    double m_base_volume;
    double m_base_pitch;
    bool m_loop;
    ALuint m_buffer;
    ALuint m_source;
};
} // namespace Vamos_Media

#endif // not _SAMPLE_H_