project-kyoku/include/core/note.h

#pragma once

#include "core/gameevent.h"
#include "core/time.h"

namespace kku
{

class Note
{
  public:
    explicit Note(microsec perfect_offset) : _perfect_offset(perfect_offset) {}
    virtual ~Note() = default;

    virtual bool isActive(const microsec &offset) const = 0;
    virtual void update(const microsec &music_offset) = 0;

    virtual void input(kku::GameEvent &&input) = 0;

    inline const microsec &getPerfectOffset() const noexcept
    {
        return _perfect_offset;
    }

    bool operator<(const Note &note) const
    {
        return _perfect_offset < note._perfect_offset;
    }

    bool operator==(const Note &note) const
    {
        return _perfect_offset == note._perfect_offset;
    }

    bool operator>(const Note &note) const
    {
        return _perfect_offset > note._perfect_offset;
    }

  protected:
    microsec _perfect_offset;
};

struct NotePtrComparator
{
    bool operator()(const Note *lhs, const Note *rhs) const noexcept
    {
        return lhs->getPerfectOffset() < rhs->getPerfectOffset();
    }
};

} // namespace kku