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67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
// Copyright [2023] Krzysztof Rudnicki
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/*******************************************************************
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** This code is part of Breakout.
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**
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** Breakout is free software: you can redistribute it and/or modify
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** it under the terms of the CC BY 4.0 license as published by
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** Creative Commons, either version 4 of the License, or (at your
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** option) any later version.
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******************************************************************/
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#ifndef BREAKOUT_RESOURCEMANAGER_HPP_
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#define BREAKOUT_RESOURCEMANAGER_HPP_
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#include <map>
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#include <string>
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#include "../dependencies/include/glad/glad.h"
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#include "../breakout/texture.hpp"
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#include "../breakout/shader.hpp"
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// A static singleton ResourceManager class that hosts several
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// functions to load Textures and Shaders. Each loaded texture
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// and/or shader is also stored for future reference by string
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// handles. All functions and resources are static and no
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// public constructor is defined.
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class ResourceManager {
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public:
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// resource storage
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static std::map<std::string, Shader> Shaders;
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static std::map<std::string, Texture2D> Textures;
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// loads (and generates) a shader program from file loading vertex,
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// fragment (and geometry) shader's source code.
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// If gShaderFile is not nullptr, it also loads a geometry shader
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static Shader LoadShader(
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const char *vShaderFile,
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const char *fShaderFile,
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const char *gShaderFile,
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std::string name);
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// retrieves a stored sader
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static Shader GetShader(std::string name);
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// loads (and generates) a texture from file
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static Texture2D LoadTexture(
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const char *file,
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bool alpha,
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std::string name);
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// retrieves a stored texture
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static Texture2D GetTexture(std::string name);
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// properly de-allocates all loaded resources
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static void Clear();
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private:
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// private constructor,
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// that is we do not want any actual resource manager objects.
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// Its members and functions should be publicly available (static).
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ResourceManager() { }
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// loads and generates a shader from file
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static Shader loadShaderFromFile(
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const char *vShaderFile,
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const char *fShaderFile,
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const char *gShaderFile = nullptr);
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// loads a single texture from file
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static Texture2D loadTextureFromFile(const char *file, bool alpha);
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};
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#endif // BREAKOUT_RESOURCEMANAGER_HPP_
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