ApplicationState.hpp

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/*
 * =====================================================================================
 *
 *       Filename:  ApplicationState.hpp
 *
 *    Description:
 *
 *        Created:  05/06/2018 15:45:26
 *
 *         Author:  Quentin Bazin, <quent42340@gmail.com>
 *
 * =====================================================================================
 */
#ifndef GK_APPLICATIONSTATE_HPP_
#define GK_APPLICATIONSTATE_HPP_

#include "gk/core/SDLHeaders.hpp"
#include "gk/gl/IDrawable.hpp"
#include "gk/gl/Transformable.hpp"
#include "gk/utils/NonCopyable.hpp"

namespace gk {

class ApplicationStateStack;

class ApplicationState : public IDrawable, public Transformable, public NonCopyable {
    public:
        ApplicationState(ApplicationState *parent = nullptr) : m_parent(parent) {}

        ApplicationState(ApplicationState &&) = default;

        virtual ~ApplicationState() = default;

        ApplicationState &operator=(ApplicationState &&) = default;

        virtual void onEvent(const SDL_Event &) {}

        virtual void update() = 0;

        ApplicationState *parent() { return m_parent; }

        void setStateStack(ApplicationStateStack *stateStack) { m_stateStack = stateStack; }

    protected:
        void draw(gk::RenderTarget &, gk::RenderStates) const override {}

        // Member data
        ApplicationState *m_parent = nullptr;          

        ApplicationStateStack *m_stateStack = nullptr; 
};

} // namespace gk

#endif // GK_APPLICATIONSTATE_HPP_