project-kyoku/include/gui/state.h

#pragma once

#include <stack>
#include <memory>
#include <SFML/Window/Event.hpp>
#include <SFML/Graphics/Drawable.hpp>

class GUIState : public sf::Drawable
{
public:
    virtual ~GUIState() = default;

    virtual void input(const sf::Event& event) = 0;
    virtual void update() = 0;
    virtual void draw(sf::RenderTarget& target, sf::RenderStates states) const = 0;
};