From d758684ba1e04a10b57b2392d978a013caaf3603 Mon Sep 17 00:00:00 2001
From: Guillaume Haerinck <guillaume.haerinck@outlook.com>
Date: Fri, 20 Sep 2019 09:58:30 +0200
Subject: [PATCH] Set gameloop

---
 README.md    |  6 ++++++
 src/main.cpp | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+)

diff --git a/README.md b/README.md
index 3e3f134..dfc006d 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,12 @@ http://igm.univ-mlv.fr/~lnoel/index.php?section=teaching&teaching=opengl&teachin
 
 You need to install [Cmake](https://cmake.org/) to build the project, and [Conan](https://conan.io/) to download dependencies.
 
+Then you can add the server which contains the dependencies of the project :
+
+```bash
+conan remote add bincrafters https://api.bintray.com/conan/bincrafters/public-conan
+```
+
 ### Build
 
 You can handle the `CMakeLists.txt` in any way you like, it will download the dependecies by itself. 
diff --git a/src/main.cpp b/src/main.cpp
index 4494fce..04d803b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,6 +1,64 @@
 #include <glad/glad.h>
 #include <SDL2/SDL.h>
+#include <iostream>
 
 int main(int argc, char *argv[]) {
+    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) != 0) {
+		std::cerr << "[SDL2] Unable to initialize SDL: " << SDL_GetError() << std::endl;
+	}
+	SDL_GL_LoadLibrary(NULL);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
+	SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
+	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
+	SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengl");
+	SDL_GL_SetSwapInterval(1);
+
+	SDL_Window* window = SDL_CreateWindow(
+		"OpenGL Playground",
+		SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
+		500, 500,
+		SDL_WINDOW_OPENGL
+    );
+	if (window == nullptr) {
+        std::cerr << "[SDL2] Window is null: " << SDL_GetError() << std::endl;
+    }
+
+    SDL_GLContext glContext = SDL_GL_CreateContext(window);
+    if (glContext == nullptr) {
+        std::cerr << "[SDL2] OpenGL context is null: " <<  SDL_GetError() << std::endl;
+    }
+
+	if (!gladLoadGLLoader(SDL_GL_GetProcAddress)) {
+		std::cerr << "[Glad] Glad not init" << std::endl;
+	}
+
+    // Game loop
+    bool isRunning = true;
+    while (isRunning) {
+		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+        SDL_Event e;
+        while (SDL_PollEvent(&e)) {
+            switch (e.type) {
+            case SDL_QUIT:
+                isRunning = false;
+                break;
+        
+            case SDL_KEYDOWN:
+                break;
+
+            case SDL_KEYUP:
+                break;
+
+            case SDL_MOUSEBUTTONDOWN:
+                break;
+            }
+        }
+
+		SDL_GL_SwapWindow(window);
+    }
+
     return 0;
 }