File Material.h

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#pragma once

#include "Parameters.h"
#include "Texture.h"

#include <array>

class Material
{
public:

    enum MatParaType
    {
        MAT_NONE = -1,  
        MAT_ALBEDO,     
        MAT_METAL,      
        MAT_ROUGH,      
        MAT_SPEC,       
        MAT_EMIS_COL,   
        MAT_EMIS_STR,   
        MAT_ALPHA,      
        MAT_NORMAL,     
        MAT_BUMP,       
        MAT_END         
    };

    enum MatDataType
    {
        MPARA_FLT,   
        MPARA_COL,   
        MPARA_TEX,   
        MPARA_CODE   
    };

    using MatParamData = std::tuple<MatDataType, float, glm::vec3, TextureLib::TextureRes>; 
    using MaterialRes = std::shared_ptr<Material>; 

    static std::vector<std::string> mat_uniform_name; 

public:

    std::string mat_name{ "Default" }; 
    std::unordered_map<MatParaType, MatParamData> mat_params; 

    void InitParamData();

public:

    Material();

    ~Material();

    static MaterialRes LoadMaterial(std::string _path = "");

    void ParseConfig(const std::string& _config);

public:

    bool is_mat_changed{ true };        
    bool is_mat_struct_changed{ true }; 

    void SetMatParam(MatParaType _tar, MatDataType _type);

    void SetMatParam(MatParaType _tar, float _var);

    void SetMatParam(MatParaType _tar, glm::vec3 _col);

    void SetMatParam(MatParaType _tar, TextureLib::TextureRes _tex);

    void BindMatTexture() const;

};