public void Add(Ship ship)
{
if (!ship.FitsInSquare(ship.X + ship.Length, ship.Y + ship.Length)) throw new ArgumentOutOfRangeException();
if (!_ships.Any())
_ships.Add(ship);
else
{
for (int i = 0; i<_ships.Count; i++)
{
if (_ships[i].OverlapsWith(ship))
throw new ShipOverlapException($"Ship {_ships[i].ToString()} - overlaps with {ship.ToString()}");
_ships.Add(ship);
}
}
}
