#pragma once #include #include #include using microsec = sf::Int64; class Note : public sf::Drawable { public: explicit Note(microsec perfect_offset) : _perfect_offset(perfect_offset) {} virtual ~Note() = default; virtual bool isActive(microsec music_offset) const = 0; virtual void draw(sf::RenderTarget& target, sf::RenderStates states) const = 0; virtual microsec offset() const { return _perfect_offset; } protected: microsec _perfect_offset; };