c-plus-plus-dafuq/sfml-const/original.hpp

#pragma once

class Drawable;

class RenderTarget {
  public:
    void draw(const Drawable& drawable);
};

class Drawable {
  public:
    virtual void draw(RenderTarget& target) const = 0;
};

class Shape : public Drawable {
  public:
  void draw(RenderTarget& target) const override;
};