In Larry Niven's original design they did indeed use large panels rotating in a smaller ring to simulate day & night for the surface. The panels were connected by gigantic 'cables' of whatever the Ringworld itself was made out of, and the whole thing was timed according to their size and the size of the gaps to come out to a reasonable approximation of a day/night cycle on a terrestrial planet. It would be quite interesting to see that feature included in a Starfury model of a Ringworld.
Or an SE V model if we will be able to visit our simulated systems. I wonder if we'll have a 'tour' mode where we can drop in on our held systems in SE V and view them as if playing a Starfury game. Or will the 'combat' space for SE V always be a much smaller space than an entire system?