first commit

resourceManager.h

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+#pragma once
+
+#include <map>
+#include <string>
+
+#include <GLAD/glad.h>
+#include <stb_image.h>
+
+#include "textureManager/texture.h"
+#include "shaders/shader.h"
+
+
+// A static singleton ResourceManager class that hosts several
+// functions to load Textures and Shaders. Each loaded Texture
+// and/or shader is also stored for future reference by string
+// handles. All functions and resources are static and no 
+// public constructor is defined.
+class ResourceManager
+{
+public:
+    // Resource storage
+    static std::map<std::string, Shader>    Shaders;
+    static std::map<std::string, Texture>   Textures;
+    // Loads (and generates) a shader program from file loading vertex, fragment (and geometry) shader's source code. If gShaderFile is not nullptr, it also loads a geometry shader
+    static Shader   LoadShader(const GLchar* vShaderFile, const GLchar* fShaderFile, const GLchar* gShaderFile, std::string name);
+    // Retrieves a stored sader
+    static Shader   GetShader(std::string name);
+    // Loads (and generates) a Texture from file
+    static Texture LoadTexture(const GLchar* file, std::string name);
+    // Retrieves a stored Texture
+    static Texture GetTexture(std::string name);
+    // Properly de-allocates all loaded resources
+    static void      Clear();
+private:
+    // Private constructor, that is we do not want any actual resource manager objects. Its members and functions should be publicly available (static).
+    ResourceManager() { }
+    // Loads and generates a shader from file
+    static Shader    loadShaderFromFile(const GLchar* vShaderFile, const GLchar* fShaderFile, const GLchar* gShaderFile = nullptr);
+    // Loads a single Texture from file
+    static Texture loadTextureFromFile(const GLchar* file);
+};