layer.h

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/*!****************************************************************//*!*
 * \file   layer.h
 * \brief  Base abstract application layer class definition module.
 *         Layers are stored in stack.
 *         Updated one by one, ordered by time of pushing to stack.
 * 
 * \author Sabitov Kirill
 * \date   26 June 2022
 *********************************************************************/
 
#pragma once
 
#include "utilities/event/event.h"
 
namespace scl
{
    class layer abstract
    {
    public:
        layer() = default;
 
        virtual ~layer() {}
 
        /*!*
         * Layer initialisation virtual callback function.
         * 
         * \param None.
         * \return None.
         */
        virtual void OnInit() {}
 
        /*!*
         * Layer deinitialisation virtual callback function.
         *
         * \param None.
         * \return None.
         */
        virtual void OnClose() {}
 
        /*!*
         * Layer update virtual callback function.
         * 
         * \param None.
         * \return None.
         */
        virtual void OnUpdate(float DeltaTime) {}
 
        /*!*
         * Layer GUI rendering virtual callback function.
         * 
         * \param None.
         * \return None.
         */
        virtual void OnGuiRender() {}
    };
}