project-kyoku/note.cpp

#include "note.h"
#include <cmath>

Note::Note(microsec offset, microsec death_offset, Note::Arrow type) :
    _offset(offset),
    _death_offset(death_offset),
    _type(type)
{}

microsec Note::offset() const noexcept
{
    return _offset;
}

microsec Note::deathOffset() const noexcept
{
    return _death_offset;
}

NoteGrade Note::onTap(Arrow arrow_type, microsec tap_time_stamp) const
{
    if (arrow_type != _type)
        return {0, NoteGrade::Rating::WRONG};

    microsec odds = std::abs(tap_time_stamp - _offset);
    return calculatePrecision(odds);
}

NoteGrade Note::calculatePrecision(microsec odds) const
{
    NoteGrade ret;
    if (odds < 412162)
    {
        ret.score = 50;
        ret.rating = NoteGrade::Rating::GREAT;
    }

    return ret;
}