/// <summary>
/// Mark the footprint of the given battleship location as occupied.
/// </summary>
/// <param name="location"> The location to mark the footprint of. </param>
private void MarkFootprint(BattleshipLocation location)
{
foreach (var coord in location.IterateFootprint())
{
Cells[coord.X, coord.Y] = location;
}
}
/// <summary>
/// Check if the entire footprint of the given location is unoccupied.
/// </summary>
/// <param name="location"> The location to check the footprint of. </param>
/// <returns> True if its footprint is clear, else false. </returns>
private bool FootprintUnoccupied(BattleshipLocation location)
{
return(location.IterateFootprint()
.All(coord => Cells[coord.X, coord.Y] == null));
}