Shader.h

#pragma once
 
#include <string>
#include <unordered_map>
 
#include <glm/glm.hpp>
 
namespace Hana
{
    class Shader
    {
    public:
        virtual ~Shader() = default;
 
        virtual void Bind() const = 0;
        virtual void Unbind() const = 0;
 
        virtual void SetInt(const std::string& name, int value) = 0;
        virtual void SetFloat3(const std::string& name, const glm::vec3& value) = 0;
        virtual void SetFloat4(const std::string& name, const glm::vec4& value) = 0;
        virtual void SetMat4(const std::string& name, const glm::mat4& value) = 0;
 
        virtual const std::string& GetName() const = 0;
 
        static Ref<Shader> Create(const std::string& filepath);
        static Ref<Shader> Create(const std::string& name, const std::string& vertexSrc, const std::string& fragmentSrc);
    };
 
    class ShaderLibrary
    {
    public:
        void Add(const std::string& name, const Ref<Shader>& shader);
        void Add(const Ref<Shader>& shader);
 
        Ref<Shader> Load(const std::string& filepath);
        Ref<Shader> Load(const std::string& name, const std::string& filepath);
 
        Ref<Shader> Get(const std::string& name);
 
        bool Exists(const std::string& name) const;
    private:
        std::unordered_map<std::string, Ref<Shader>> m_Shaders;
    };
}