struct Window_Data {
	// Real width and height of the window
	i32 width;
	i32 height;
	bool size_just_changed;

	f32 desired_aspect_ratio;
};

struct App_State {
  Window_Data win_data;
  User_Input user_input;
};

internal void update_and_render(Arena *arena, App_State &app, f32 delta_time)
{
  ImGui::SetNextWindowPos({ 0, 0 });
  ImGui::SetNextWindowSize({ (f32)app.win_data.width, (f32)app.win_data.height });
  if (ImGui::Begin("test")) {
    ImGui::End();
  }
}