* into a cycle of repeatedly selecting a random cell on the map and
* transforming it into a land cell if it is horizontally or vertically neighbor
* to one; the cycle ends when a land cell is due to be created right at the
* into a cycle of repeatedly selecting a random cell on the map and
* transforming it into a land cell if it is horizontally or vertically neighbor
* to one; the cycle ends when a land cell is due to be created right at the