/// <summary>
/// Add ship to the board.
/// </summary>
/// <param name="battleship">battleship</param>
/// <returns>string</returns>
public string PlaceShipOnBoard(BattleshipRequest battleship)
{
var(isCreated, size, boardCells) = validationService.IsBattleBoardCreated();
if (!isCreated)
{
return(Constants.Messages.BOARD_NOT_CREATED_YET);
}
if (validationService.IsShipPlacedOnBoard())
{
return(Constants.Messages.SHIP_IS_ALREADY_PLACED);
}
var(isValid, endCoordinate, orientation) = validationService.IsValidPosition(battleship, size - 1);
if (!isValid)
{
return(Constants.Messages.CANNOT_PLACE_OUTSIDE_BOARD);
}
if (!validationService.IsBoardCellEmpty(battleship.Position.X,
battleship.Position.Y,
endCoordinate, orientation))
{
return(Constants.Messages.CELL_IS_OCCUPIED);
}
var battleBoard = new BattleBoard
{
BoardCells = boardCells,
BoardSize = size - 1,
Length = battleship.Length
};
if (orientation.Equals(Orientation.Horizontal))
{
for (var i = battleship.Position.X; i <= endCoordinate; i++)
{
battleBoard.BoardCells[i, battleship.Position.Y] = new BoardCell {
IsEmpty = false, IsHit = false
};
}
}
if (orientation.Equals(Orientation.Vertical))
{
for (var i = battleship.Position.Y; i <= endCoordinate; i++)
{
battleBoard.BoardCells[battleship.Position.X, i] = new BoardCell {
IsEmpty = false, IsHit = false
};
}
}
cacheService.CreateOrUpdateCache(Constants.CacheKeys.IS_SHIP_PLACED_ON_BOARD, true);
cacheService.CreateOrUpdateCache(Constants.CacheKeys.BATTLE_BOARD, battleBoard);
return(string.Empty);
}
/// <summary>
/// Creates the board based on given size.
/// </summary>
/// <param name="size">size</param>
/// <returns>string</returns>
public string CreateBoard(int size)
{
var(isExists, battleBoard) = cacheService.GetDataFromCache <BattleBoard>(Constants.CacheKeys.BATTLE_BOARD);
if (isExists && battleBoard?.BoardSize > 0)
{
return($"{battleBoard.BoardSize}X{battleBoard.BoardSize} board already created");
}
battleBoard = new BattleBoard()
{
// +1 is to ignore the zero based index row and column.
BoardCells = new BoardCell[size + 1, size + 1],
BoardSize = size
};
cacheService.CreateOrUpdateCache(Constants.CacheKeys.BATTLE_BOARD, battleBoard);
return(string.Empty);
}
