TC32

MAIN.CPP

#include "System.h"

int main()
{
	System::Initialize();



	System::Shutdown();
	return 0;
}


SYSTEM.H

#define GLEW_STATIC
#include <GL\glew.h>
#include <GLFW\glfw3.h>
#include <iostream>

GLFWwindow* window;

namespace System
{
	//Objects and variables
	GLFWwindow* window;

	//Function prototypes
	bool Initialize();
	void Shutdown();
}


SYSTEM.CPP

#include "System.h"
#include "Settings.h"

using namespace System;

bool System::Initialize()
{
	std::cout << "Initializing GLFW: OpenGL version 3.3 \n";

	//Initialize GLFW
	glfwInit();
	//Set window properties (version 3.3, core profile, not resizeable)
	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
	glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

	//Create Window
	window = glfwCreateWindow(Settings::defaultScreenWidth, Settings::defaultScreenHeight, "Learn OpenGL", nullptr, nullptr);
	if (window = nullptr)
	{
		std::cout << "Failed to create GLFW window \n";
		glfwTerminate();
		return false;
	}

	//Make the context current
	glfwMakeContextCurrent(window);

	//Initialize GLEW
	glewExperimental = GL_TRUE;
	std::cout << "Initializing GLEW: Experimental = " << glewExperimental << "\n";

	if (glewInit() != GLEW_OK)
	{
		std::cout << "Falied to initialize GLEW \n";
		return false;
	}

	//Set up viewport
	glfwGetFramebufferSize(window, &Settings::defaultScreenWidth, &Settings::defaultScreenHeight);
	glViewport(0, 0, Settings::screenWidth, Settings::screenHeight);


	return true;
}

void System::Shutdown()
{
	glfwTerminate();
}


SETTINGS.H

namespace Settings
{
	//Variables
	int defaultScreenWidth = 100;
	int defaultScreenHeight = 100;

	int screenWidth = defaultScreenWidth;
	int screenHeight = defaultScreenHeight;
}