Add everything.

include/General/GlobalHeaders.h

@@ -0,0 +1,4 @@
+#pragma once
+
+#include <iostream>
+#include <string>

include/Shaders/Shader.h

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+#ifndef SHADER_H
+#define SHADER_H
+
+#include <string>
+#include "../../ThirdParty/glm/glm.hpp"
+
+class Shader
+{
+public:
+    unsigned int ID;
+
+    Shader(const char* vertexPath, const char* fragmentPath);
+
+    void use();
+
+    void setBool(const std::string &name, bool value) const;
+    void setInt(const std::string &name, int value) const;
+    void setFloat(const std::string &name, float value) const;
+    void setVec3(const std::string &name, const glm::vec3 &value) const;
+    void setMat4(const std::string &name, const glm::mat4 &mat) const;
+
+private:
+    std::string readShaderFile(const char* filePath);
+    void compileShaders(const char* vertexSource, const char* fragmentSource);
+    void checkCompileErrors(unsigned int shader, std::string type);
+};
+
+#endif

include/Skybox/Skybox.h

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+#ifndef SKYBOX_H
+#define SKYBOX_H
+
+class Shader;
+
+class Skybox {
+private:
+    unsigned int VAO, VBO;
+    Shader* skyboxShader;
+    float timeOfDay = 0.5f; // 0.0 = night, 0.25 = sunrise, 0.5 = day, 0.75 = sunset, 1.0 = midnight
+
+    void setupMesh();
+
+public:
+    Skybox();
+    ~Skybox();
+    
+    void draw(const float* view, const float* projection);
+    void setTimeOfDay(float time); // 0.0 to 1.0
+    float getTimeOfDay() const { return timeOfDay; }
+};
+
+#endif

include/Textures/Texture.h

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+#ifndef TEXTURE_H
+#define TEXTURE_H
+
+#include <string>
+#include <glad/glad.h>
+
+class Texture
+{
+public:
+    // load from file; format and wrap/filter are optional
+    Texture(const std::string& path,
+            GLenum wrapS = GL_REPEAT,
+            GLenum wrapT = GL_REPEAT,
+            GLenum minFilter = GL_LINEAR_MIPMAP_LINEAR,
+            GLenum magFilter = GL_LINEAR);
+    ~Texture();
+
+    void Bind(GLenum unit = GL_TEXTURE0) const;
+    void Unbind() const;
+
+    GLuint GetID() const { return m_ID; }
+    int GetWidth() const { return m_Width; }
+    int GetHeight() const { return m_Height; }
+
+private:
+    GLuint m_ID = 0;
+    int m_Width = 0;
+    int m_Height = 0;
+    int m_Channels = 0;
+    GLenum m_InternalFormat = GL_RGBA;
+    GLenum m_DataFormat = GL_RGBA;
+};
+
+#endif

include/Window/Window.h

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+#ifndef WINDOW_H
+#define WINDOW_H
+#include "../General/GlobalHeaders.h"
+#include <glad/glad.h>
+#include "../../src/ThirdParty/glfw/include/GLFW/glfw3.h"
+
+class Window {
+public:
+    GLFWwindow* makeWindow();
+};
+
+#endif