SMaterial.h

#pragma once
 
#include <functional>
#include <unordered_map>
 
#include "../GLProgramHandle.h"
#include "../STypeDef.h"
#include "../Interface/TransformInterface.h"
#include "../Render/GLMeshID.h"
#include "SShaderGroup.h"
 
namespace CSE {
 
    class LightMgr;
 
    class SMaterial : public SResource {
    public:
        enum SMaterialMode { NORMAL = 0, DEFERRED = 1, DEPTH_ONLY = 2 };
    private:
        struct Element {
            int id = HANDLE_NULL;
            SType type = SType::UNKNOWN;
            std::vector<std::string> valueStr;
                        int count = 1;
            std::string raw;
                
                        std::function<void()> attachFunc = nullptr;
        };
 
        typedef std::unordered_map<std::string, Element*> ElementsMap;
    public:
        SMaterial();
 
        explicit SMaterial(const SMaterial* material);
 
        ~SMaterial() override;
 
        void Exterminate() override;
 
        void AttachElement() const;
 
                void InitElements(const ElementsMap& elements, SShaderGroup* shaders);
 
                void SetInt(const std::string& name, int value);
 
                void SetFloat(const std::string& name, float value);
 
                void SetVec3(const std::string& name, const vec3& value);
 
                void SetTexture(const std::string& name, SResource* texture);
 
        short GetOrderLayer() const;
 
        void SetOrderLayer(int orderLayer);
 
        SMaterialMode GetMode() const;
 
        void SetMode(SMaterialMode mode);
 
        SShaderGroup* GetShaders() const;
 
        int GetTextureCount() const;
 
        std::string PrintMaterial() const;
 
        static SMaterial* GenerateMaterial(SShaderGroup* shaders);
 
    protected:
        void Init(const AssetMgr::AssetReference* asset) override;
 
    private:
        void ReleaseElements();
 
                void SetBindFuncByType(Element* element);
 
        static void SetIntFunc(Element* element, int value);
        static void SetFloatFunc(Element* element, float value);
        static void SetBoolFunc(Element* element, bool value);
 
        static void SetMat4Func(Element* element, mat4 value);
        static void SetMat3Func(Element* element, mat3 value);
        static void SetMat2Func(Element* element, mat2 value);
        static void SetVec4Func(Element* element, vec4 value);
        static void SetVec3Func(Element* element, vec3 value);
        static void SetVec2Func(Element* element, vec2 value);
 
        void SetTextureFunc(Element* element, SResource* texture);
 
    private:
        SShaderGroup* m_shaders = nullptr;
        short m_orderLayer = 5000;
        //std::vector<Element*> m_elements;
                ElementsMap m_elements;
                mutable int m_textureLayout = 0;
        int m_textureCount = 0;
        SMaterialMode m_mode = NORMAL;
 
        LightMgr* m_lightMgr = nullptr;
 
        std::string m_refHash;
    };
}