Sound.hpp

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#ifndef DONUT_AUDIO_SOUND_HPP
#define DONUT_AUDIO_SOUND_HPP
 
#include <donut/Filesystem.hpp>
#include <donut/UniqueHandle.hpp>
 
#include <limits> // std::numeric_limits
 
namespace donut::audio {
 
enum class SoundAttenuationModel : unsigned {
    NO_ATTENUATION,
 
    INVERSE_DISTANCE,
 
    LINEAR_DISTANCE,
 
    EXPONENTIAL_DISTANCE,
};
 
struct SoundOptions {
    SoundAttenuationModel attenuationModel = SoundAttenuationModel::INVERSE_DISTANCE;
 
    float volume = 1.0f;
 
    float minDistance = 1.0f;
 
    float maxDistance = std::numeric_limits<float>::max();
 
    float rolloffFactor = 1.0f;
 
    float dopplerFactor = 1.0f;
 
    bool useDistanceDelay = false;
 
    bool listenerRelative = false;
 
    bool looping = false;
 
    bool singleInstance = false;
};
 
class Sound {
public:
    Sound(const Filesystem& filesystem, const char* filepath, const SoundOptions& options = {});
 
    [[nodiscard]] void* get() const noexcept {
        return buffer.get();
    }
 
private:
    struct SourceDeleter {
        void operator()(void* handle) const noexcept;
    };
 
    using Source = UniqueHandle<void*, SourceDeleter>;
 
    Source buffer{};
};
 
} // namespace donut::audio
 
#endif