bool CAudio_AL::init()
{
m_device = ::alcOpenDevice(nullptr);
if (!m_device)
{
return false;
}
m_context = ::alcCreateContext(m_device, nullptr);
if (!m_context)
{
return false;
}
if (!::alcMakeContextCurrent(m_context))
{
return false;
}
::alListener3f(AL_POSITION, 0, 0, 1.0f);
::alListener3f(AL_VELOCITY, 0, 0, 0);
const ALfloat listenerOri[] = { 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f };
::alListenerfv(AL_ORIENTATION, listenerOri);
const auto nullAudio = std::make_shared<Audio_AL>(
Wave(SecondsF(0.5), Arg::generator = [](double t) {
return 0.5 * std::sin(t * Math::TwoPi) * std::sin(t * Math::TwoPi * 220.0 * (t * 4.0 + 1.0)); }));
if (!nullAudio->isInitialized())
{
return false;
}
m_audios.setNullData(nullAudio);
LOG_INFO(U"ℹ️ Audio initialized");
return true;
}
explicit constexpr Transition(const MillisecondsF& inDuration = SecondsF(0.2), const MillisecondsF& outDuration = SecondsF(0.1), double initialValue = 0.0) noexcept
: m_inDurationMillisec(static_cast<double>(inDuration.count()))
, m_outDurationMillisec(static_cast<double>(outDuration.count()))
, m_value(initialValue) {}