project-kyoku/modes/classicmode/game/classicgraphicsmanager.h

#pragma once

#include "spritecontainer.h"
#include "classicmode/classicactions.h"
#include "graphics/classicspritefactory.h"
#include "classicarrownote.h"
#include "core/timeline.h"

#include <SFML/Graphics/RenderTarget.hpp>

class ClassicSprite;

class ClassicGraphicsManager : public sf::Drawable
{
public:
    explicit ClassicGraphicsManager(Timeline<ClassicNote>& timeline, const microsec& visibility_offset);
    virtual void draw(sf::RenderTarget& target, sf::RenderStates states) const override;

    void draw(const std::vector<ClassicArrowNote::ArrowElement>& elements, sf::RenderTarget& target, sf::RenderStates states) const;
    void setGraphics(std::vector<ClassicArrowNote::ArrowElement> &elements, TimeRange&& range);

    void update(const microsec& offset);
    void fetchFirstNote(const microsec& offset);
    void fetchLastNote(const microsec& offset);

private:
    using Iterator = Timeline<ClassicNote>::Iterator;

    Iterator _first;
    Iterator _last;

    SpriteContainer<Type, ClassicSpriteFactory, ClassicSprite> _sprite_container;
    Timeline<ClassicNote> * const _timeline;

    microsec _visibility_offset;

    inline bool nothingToDraw() const noexcept;
    inline bool isVisiblyClose(const Iterator& iterator, const microsec& music_offset) const noexcept;
    inline sf::VertexArray makeLine(const Coordinates& c1, const Coordinates& c2) const;
};