input.h

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/*!****************************************************************//*!*
 * \file   input.h
 * \brief  Abstract, platform independent input system definition mpdule.
 * 
 * \author Sabitov Kirill
 * \date   22 June 2022
 *********************************************************************/
 
#pragma once
 
#include "base.h"
#include "input_keycodes.h"
 
namespace scl
{
    struct mouse_data
    {
        int PosX { 0 };      
        int PosY { 0 };      
        int PosZ { 0 };      
        int PosDeltaX { 0 }; 
        int PosDeltaY { 0 }; 
        int PosDeltaZ { 0 }; 
    };
 
    struct keyboard_data
    {
        u8 Keys[256] { 0 };
 
        u8 KeysOld[256] { 0 };
 
        u8 KeysClick[256] { 0 };
    };
 
    class input_system
    {
    private: 
        static shared<input_system> Instance;
 
    protected:
        mouse_data Mouse;
        keyboard_data Keyboard;
 
    public: 
        static int GetMousePosX() { return Instance->Mouse.PosX; }
        static int GetMousePosY() { return Instance->Mouse.PosY; }
        static int GetMousePosZ() { return Instance->Mouse.PosZ; }
        static int GetMousePosDeltaX() { return Instance->Mouse.PosDeltaX; }
        static int GetMousePosDeltaY() { return Instance->Mouse.PosDeltaY; }
        static int GetMousePosDeltaZ() { return Instance->Mouse.PosDeltaZ; }
 
        static bool GetKey(keycode Index) { return Instance->Keyboard.Keys[(int)Index]; };
 
        static bool GetKeyOld(keycode Index) { return Instance->Keyboard.KeysOld[(int)Index]; };
 
        static bool GetKeyClick(keycode Index) { return Instance->Keyboard.KeysClick[(int)Index]; };
 
        /*!*
         * Read all available human devies function.
         *
         * \param None.
         * \return None.
         */
        static void Response() { Instance->SelfResponse(); }
 
    public: 
        /*!*
         * Input system instance reference getter function.
         * 
         * \param None.
         * \return input system instance reference.
         */
        static shared<input_system> &Get() { return Instance; }
 
        /*!*
         * Create input system depends on platform function.
         * 
         * \param None.
         * \Return Created input system pointer.
         */
        static unique<input_system> Create();
 
    protected:
        /*!*
         * Read all available human devies function.
         *
         * \param None.
         * \return None.
         */
        virtual void SelfResponse() {}
    };
}