state_machine()

MAYAFLUX_API bool MayaFlux::Kinesis::Discrete::state_machine ( double  input, std::span< double >  coefs  )

noexcept

Mealy machine: the state and the input bit pick the next state and the output.

coefs: [threshold, states, state, table...]. Counters, debouncers, pulse sequencers and every other finite controller are tables. An out of range state falls back to state zero.

Definition at line 182 of file Boolean.cpp.

{
    if (coefs.size() < 3)
        return false;
 
    const size_t states = index_of(coefs[1]);
    if (states == 0 || coefs.size() < 3 + 4 * states)
        return false;
 
    size_t current = index_of(coefs[2]);
    if (current >= states)
        current = 0;
 
    const size_t row = 3 + 4 * current + (input > coefs[0] ? 2 : 0);
    const size_t next = index_of(coefs[row]);
    coefs[2] = static_cast<double>(next < states ? next : 0);
    return coefs[row + 1] > 0.5;
}

References current, and input.