ResourceLoader_OBJ.hpp

#pragma once
#ifndef __H__OCULAR_GRAPHICS_RESOURCE_LOADER_OBJ__H__
#define __H__OCULAR_GRAPHICS_RESOURCE_LOADER_OBJ__H__

#include "Resources/ResourceLoader.hpp"
#include "Graphics/Mesh/Vertex.hpp"

#include <vector>

//------------------------------------------------------------------------------------------

class OBJState;
class OBJGroup;
class OBJMaterial;

struct OBJFace;
struct OBJVertexGroup;

namespace Ocular
{
    namespace Core
    {
        class MultiResource;
    }

    namespace Graphics
    {
        class Mesh;
        class Material;

        class ResourceLoader_OBJ : public Core::AResourceLoader
        {
        public:

            ResourceLoader_OBJ();
            virtual ~ResourceLoader_OBJ();

            virtual bool loadResource(Core::Resource* &resource, Core::File const& file, std::string const& mappingName) override;

            virtual bool loadSubResource(Core::Resource* &resource, Core::File const& file, std::string const& mappingName) override;

            virtual bool exploreResource(Core::File const& file) override;

        protected:

            //------------------------------------------------------------
            // Mesh Methods
            //------------------------------------------------------------

            void createMeshes(Core::MultiResource* multiResource);
            void createMesh(Mesh* mesh, OBJGroup const* group);
            void addFace(OBJFace const* face, std::vector<Vertex>* vertices, std::vector<uint32_t>* indices, Math::Vector3f& min, Math::Vector3f& max);
            void faceToVertex(std::vector<Vertex>* vertices, OBJVertexGroup const& group, Math::Vector3f& min, Math::Vector3f& max);
            
            //------------------------------------------------------------
            // Material Methods
            //------------------------------------------------------------

            void createMaterials(Core::MultiResource* multiResource);
            void createMaterial(Material* material, OBJMaterial const* objMaterial, std::string const& relPath);
            
            //------------------------------------------------------------
            // Misc Methods
            //------------------------------------------------------------
            
            bool isFileValid(Core::File const& file) const;
            void splitParentSubNames(std::string const& mappingName, std::string& parent, std::string& sub) const;

        private:

            OBJState* m_CurrState;
        };
    }
}
//------------------------------------------------------------------------------------------

#endif