[YuanShi]

Centered land mass surrounded by sea.

This means that the map generator would convert the provinces directly on the border into sea/deep sea provinces.

The desired effect would be to be able to generate random maps that would generate perfect wrap-around giving the impression of a globe and avoiding the ugly and unrealistic "border province" effect, that makes the playing experience less inmersive as it makes you think that you are playing on a virtual game board instead of transporting you to a virtual world.