Creado singleton GUI

gui.cpp

+#include "gui.h"
+
+#include <imgui.h>
+#include <imgui_impl_glfw.h>
+#include <imgui_impl_opengl3.h>
+
+namespace PAG {
+	GUI &GUI::getInstance() {
+		static GUI instance;
+
+		return instance;
+	}
+
+	void GUI::init(GLFWwindow *window) {
+		IMGUI_CHECKVERSION();
+		ImGui::CreateContext();
+		ImGuiIO &io = ImGui::GetIO();
+		io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+
+		ImGui_ImplGlfw_InitForOpenGL(window, true);
+		ImGui_ImplOpenGL3_Init();
+	}
+
+	void GUI::shutdown() {
+		ImGui_ImplOpenGL3_Shutdown();
+		ImGui_ImplGlfw_Shutdown();
+		ImGui::DestroyContext();
+	}
+
+	GUI::GUI() {};
+}

gui.h

+#pragma once
+
+#include "glad/glad.h"
+#include <GLFW/glfw3.h>
+
+namespace PAG {
+	class GUI {
+	public:
+		static GUI &getInstance();
+
+		GUI(const GUI &) = delete;
+		void operator=(const GUI &) = delete;
+
+		void init(GLFWwindow *);
+		void shutdown();
+
+	private:
+		GUI();
+	};
+};

main.cpp

@@ -6,6 +6,7 @@
 #include <GLFW/glfw3.h>
 
 #include "renderer.h"
+#include "gui.h"
 
 // Helper que muestra un mensaje y cierra el programa
 #define panic(message) { \
@@ -107,6 +108,8 @@ int main() {
 		panic("GLAD initialization failed");
 	}
 
+	PAG::GUI::getInstance().init(window);
+
 	auto &renderer = PAG::Renderer::getInstance();
 
 	std::cout << renderer.getRendererName() << std::endl;
@@ -135,6 +138,7 @@ int main() {
 
 	std::cout << "Finishing application pag prueba" << std::endl;
 
+	PAG::GUI::getInstance().shutdown();
 	glfwDestroyWindow(window);
 	glfwTerminate();
 }