/// <remarks>
/// We should add ships without mutual overlay and without out of game board.
/// Ships position should be maximally random.
/// </remarks>
private static bool TryGetShipToAdd(ShipClass shipClass, IEnumerable <Ship> existingShips, out Ship newShip)
{
foreach (Tuple <ShipCoordinate, ShipOrientation> item in GetRandomShipCoordinateAndOrientationInBorder(shipClass.Length))
{
var newShipCandidate = Ship.ConstructShipWithCoordinate(shipClass, item.Item2, item.Item1);
if (ShipAllocationLogic.TestNoOverlap(newShipCandidate, existingShips))
{
newShip = newShipCandidate;
return(true);
}
}
newShip = null;
return(false);
}
public static Tuple <bool, Ship> TryConstructShipWithCoordinate(
ShipClass shipClass,
ShipOrientation orientation,
ShipCoordinate headCoordinate
)
{
var cellsResult = ShipAllocationLogic.TryGetCellsOnBoard(headCoordinate, shipClass.Length, orientation);
if (cellsResult.Item1)
{
return(new Tuple <bool, Ship>(true, new Ship(shipClass, orientation, headCoordinate, cellsResult.Item2)));
}
else
{
return(new Tuple <bool, Ship>(false, null));
}
}
public Ship(
ShipClass shipClass,
ShipOrientation orientation,
ShipCoordinate headCoordinate,
List <ShipCoordinate> cells
)
{
ShipClass = shipClass ?? throw new ArgumentNullException(nameof(shipClass));
Orientation = orientation;
HeadCoordinate = headCoordinate ?? throw new ArgumentNullException(nameof(headCoordinate));
if (!ShipAllocationLogic.ValidateShipBarier(headCoordinate, shipClass.Length, orientation))
{
throw new ArgumentException("Ship out of the board.");
}
Cells = cells.Select(item => new ShipCell(item)).ToList();
}
private static IEnumerable <Tuple <ShipCoordinate, ShipOrientation> > GetRandomShipCoordinateAndOrientationInBorder(int shipLength)
{
return(GetRandomShipCoordinateAndOrientation().Where(item => ShipAllocationLogic.ValidateShipBarier(item.Item1, shipLength, item.Item2)));
}