Fixing small bugs

src/main.cpp

@@ -274,10 +274,10 @@ int main(int argc, char *argv[]) {
 
         Uint32 windowFlags = SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI | SDL_WINDOW_RESIZABLE;
         if (ZL::Environment::isFullscreen) {
-        //    windowFlags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
+            windowFlags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
         }
         
-        ZL::Environment::isFullscreen = false;
+        //ZL::Environment::isFullscreen = false;
 
         SDL_DisplayMode dm;
         if (SDL_GetCurrentDisplayMode(0, &dm) == 0) {