As our games often go forward fast, that question often comes up. Especially when fighting against enemies that can see in darkness, it can become important. It is often ignored, but it can become an effective combat tactic to get rid of opponent's lights.
"If there's a center to the universe, then you're on the planet that it's farthest from!"
-Luke skywalker, speaking of his homeworld Tatooine
Addition: I added a few WIP pictures of the buildings to the bottom of the post.