GltfCameras.h

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/**
* @file GltfCameras.h.
* @brief The GltfCameras Class Definitions.
* @author Spices.
*/
 
#pragma once
#include "Core/Core.h"
#include "GltfObject.h"
 
namespace Spices {
 
    /**
    * @brief Wrapper of Gltf Json Cameras.
    */
    class GltfCameras : public GltfObject
    {
    public:
 
        /**
        * @brief Cameras Item data.
        */
        struct Item
        {
            float yfov;           /* @brief camera fov.        */
            float znear;          /* @brief camera near plane. */
            float zfar;           /* @brief camera far plane.  */
            int nodeIndex;        /* @brief node index.        */
        };
 
    public:
 
        /**
        * @brief Constructor Function.
        * @param[in] data Specific Json element.
        */
        explicit GltfCameras(const Json& data)
            : GltfObject(data)
        {
            SPICES_PROFILE_ZONE;
 
            m_CamerasData.resize(data.size());
 
            for (int i = 0; i < data.size(); i++)
            {
                Item& item = m_CamerasData[i];
                const Json& json = data[i];
 
                item.yfov      = GltfHelper::GetElementFloat(json, "perspective/yfov", 0.1f);
                item.znear     = GltfHelper::GetElementFloat(json, "perspective/znear", 0.1f);
                item.zfar      = GltfHelper::GetElementFloat(json, "perspective/zfar", 100.0f);
                item.nodeIndex = -1;
            }
        }
 
        /**
        * @brief Destructor Function.
        */
        virtual ~GltfCameras() override = default;
 
    private:
 
        /**
        * @brief Data of Gltf Json Cameras
        */
        std::vector<Item> m_CamerasData;
 
        /**
        * @brief Allow GltfLoader and GltfCollection access all data this class.
        */
        friend class GltfLoader;
        friend class GltfCollection;
    };
}