public bool PlaceShip(ICell[,] board, ShipType shipType, Direction direction, Point initialPosition)
{
// initial position placed outside of the board
if (initialPosition.X >= board.GetLength(0) || initialPosition.Y >= board.GetLength(0))
{
return(false);
}
var significantIndex = direction == Direction.Horizontal ? initialPosition.X : initialPosition.Y;
Func <int, Point> getBoardPosition = ix => direction == Direction.Horizontal ? new Point(ix, initialPosition.Y) : new Point(initialPosition.X, ix);
// position that would make the ship "stick" out of the board
if (significantIndex + shipType.ShipSize() >= board.GetLength(0))
{
return(false);
}
// positions that are already taken (ships can not cross)
for (int i = significantIndex; i < significantIndex + shipType.ShipSize(); i++)
{
var boardPosition = getBoardPosition(i);
if (!(board[boardPosition.Y, boardPosition.X] is EmptyCell))
{
return(false);
}
}
// valid position, placing the ship
var wholeShip = new List <ShipCell>();
for (int i = significantIndex; i < significantIndex + shipType.ShipSize(); i++)
{
var boardPosition = getBoardPosition(i);
var shipCell = new ShipCell(shipType, wholeShip);
wholeShip.Add(shipCell);
board[boardPosition.Y, boardPosition.X] = shipCell;
}
return(true);
}