private ICell FindClosestUnoccupiedCell(DungeonMap dungeonMap, int x, int y)
{
for (int i = 1; i < 5; i++)
{
foreach (ICell cell in dungeonMap.GetBorderCellsInCircle(x, y, i))
{
if (cell.IsWalkable)
{
return(cell);
}
}
}
return(null);
}