project-kyoku/note.h

#ifndef NOTE_H
#define NOTE_H

#include <SFML/System/Clock.hpp>
#include <SFML/System/Vector2.hpp>

////////////////////////////////

using microsec = sf::Int64;
using coordinates = sf::Vector2i;

struct NoteGrade
{
    int score;
    enum class Rating
    {
        WRONG,
        BAD,
        GOOD,
        GREAT
    } rating;

    NoteGrade(int s, Rating r) : score(s), rating(r) {}
};

////////////////////////////////

class Note
{
public:
    enum class Arrow
    {
        UP,
        RIGHT,
        DOWN,
        LEFT,

        NONE
    };

    Note(microsec offset, microsec life_span_offset, Note::Arrow type = Note::Arrow::UP);

    void setPosition(coordinates position);
    coordinates position() const noexcept;
    microsec offset() const noexcept;

    NoteGrade onTap(Arrow arrow_type, microsec tap_time_stamp) const;
    bool isActive(microsec music_play_offset) const noexcept;

    static void resetPrecisionQualifier(microsec qualifier = 500000);

private:
    coordinates _position;
    microsec _offset;
    microsec _start_handling_offset;
    microsec _end_handling_offset;
    Arrow _type = Arrow::UP;

    static microsec _precision_qualifier;
    NoteGrade calculatePrecision(microsec odds) const;
};

#endif // NOTE_H