step_sequence()

MAYAFLUX_API double MayaFlux::Kinesis::Discrete::step_sequence ( std::span< const double >  window, std::span< double >  coefs  )

noexcept

Table of values advanced by a trigger.

Returns values[cursor], starting at the first value. Each time window[0] rises through the threshold the cursor advances by one and wraps. A held high input advances once.

Definition at line 629 of file Kernels.cpp.

{
    if (coefs.size() < 5)
        return 0.0;
 
    const auto n = static_cast<size_t>(std::max(coefs[3], 0.0));
    if (n == 0 || coefs.size() < 4 + n)
        return 0.0;
 
    const bool high = !window.empty() && window.front() > coefs[0];
    const bool latched = coefs[2] > 0.5;
    auto cursor = static_cast<size_t>(std::max(coefs[1], 0.0)) % n;
 
    if (high && !latched)
        cursor = (cursor + 1) % n;
 
    coefs[1] = static_cast<double>(cursor);
    coefs[2] = high ? 1.0 : 0.0;
    return coefs[4 + cursor];
}

References window.

Referenced by step_pattern().

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