#ifndef HGL_GRAPH_RENDER_NODE_INCLUDE
#define HGL_GRAPH_RENDER_NODE_INCLUDE

#include<hgl/graph/VK.h>
#include<hgl/type/SortedSet.h>
namespace hgl
{
    namespace graph
    {
        class Renderable;
        class MaterialInstance;
        class SceneNode;

        struct RenderNode:public Comparator<RenderNode>
        {
            uint        index;                                          ///<在MaterialRenderList中的索引

            SceneNode * scene_node;

            uint32      l2w_version;
            uint32      l2w_index;

            Vector3f    world_position;
            float       to_camera_distance;

        public:

            //该函数位于MaterialRenderList.cpp
            const int compare(const RenderNode &)const override;
        };

        using RenderNodeList=List<RenderNode>;
        using RenderNodePointerList=List<RenderNode *>;

        using MaterialInstanceSets=SortedSet<MaterialInstance *>;       ///<材质实例集合
    }//namespace graph

    template<> inline const int ItemComparator<graph::RenderNode>::compare(const graph::RenderNode &a,const graph::RenderNode &b)
    {
        return a.compare(b);
    }
}//namespace hgl
#endif//HGL_GRAPH_RENDER_NODE_INCLUDE