In the time it took to act smart you could have just read the code and seen that his intuition was mostly right. The code is extremely simple. It reads like a half day project just for fun that happened to get picked up on HN. It doesn't seem to be at all related to his line of study either.
For you interest and information, he has a defined set of bounding boxes in the world for each of the user pickable regions. He generates random lat lons until one lands in an enabled region's bounding box and then makes a request for street view data to google. If google returns a 200 he sets the street view display to the lat Lon and otherwise tries to find another lat Lon. If he ever gets a 500 from
Google he quits.
For you interest and information, he has a defined set of bounding boxes in the world for each of the user pickable regions. He generates random lat lons until one lands in an enabled region's bounding box and then makes a request for street view data to google. If google returns a 200 he sets the street view display to the lat Lon and otherwise tries to find another lat Lon. If he ever gets a 500 from Google he quits.