public override Cell TakeShot()
{
while (true)
{
Console.WriteLine("Your turn. Please enter your guess in the format A5 (valid chars are [{0} - {1}]) and valid numbers are [{2} - {3}]", Board.ValidCharacters.First(), Board.ValidCharacters.Last(), Board.ValidNumbers.First(), Board.ValidNumbers.Last());
var playerInput = Console.ReadLine();
if (playerInput.Length == 2)
{
playerInput = playerInput.ToUpper();
char horizontalGuess;
int verticalGuess;
if (Char.TryParse(playerInput[0].ToString(), out horizontalGuess) && int.TryParse(playerInput[1].ToString(), out verticalGuess))
{
if (Board.ValidCharacters.Contains(horizontalGuess) && Board.ValidNumbers.Contains(verticalGuess))
{
if (previousGuesses.Any(x => x.Horizontal == horizontalGuess && x.Vertical == verticalGuess))
{
Console.WriteLine("You have already guess there before, please try again.");
}
else
{
var cell = new Cell(horizontalGuess, verticalGuess);
this.previousGuesses.Add(cell);
return cell;
}
}
}
}
}
}
public Board()
{
this.grid = new Cell[ValidCharacters.Length, ValidNumbers.Length];
this.placedShips = new List<Ship>();
for (var i = 0; i < ValidCharacters.Length; i++)
{
for (var j = 0; j < ValidNumbers.Length; j++)
{
grid[i, j] = new Cell(ValidCharacters[i], ValidNumbers[j]);
}
}
}
public bool IsHit(Cell shot)
{
if (cells == null)
{
throw new InvalidOperationException("Ship has not yet been placed on the board.");
}
if (cells.Contains(shot))
{
this.hitCells.Add(shot);
return true;
}
return false;
}
// this could be improved by holding a collection of previous hit cells instead of 1
// and then figuring out the direction the ship is facing to improve on the selection of the next cell
private Cell SelectCellNearPreviousChoice()
{
Cell selectedCell;
var horizontalPosition = Array.IndexOf(Board.ValidCharacters, this.previousChosenCellWithoutSinkingShip.Value.Horizontal);
var verticalPosition = this.previousChosenCellWithoutSinkingShip.Value.Vertical;
if (horizontalPosition > 0)
{
selectedCell = new Cell(Board.ValidCharacters[horizontalPosition - 1], verticalPosition);
if (!this.previousGuesses.Contains(selectedCell))
{
return selectedCell;
}
}
if (horizontalPosition < Board.ValidCharacters.Length)
{
selectedCell = new Cell(Board.ValidCharacters[horizontalPosition + 1], verticalPosition);
if (!this.previousGuesses.Contains(selectedCell))
{
return selectedCell;
}
}
if (verticalPosition > 0)
{
selectedCell = new Cell(Board.ValidCharacters[horizontalPosition], verticalPosition - 1);
if (!this.previousGuesses.Contains(selectedCell))
{
return selectedCell;
}
}
if (verticalPosition < Board.ValidNumbers.Length)
{
selectedCell = new Cell(Board.ValidCharacters[horizontalPosition], verticalPosition + 1);
if (!this.previousGuesses.Contains(selectedCell))
{
return selectedCell;
}
}
return new Cell('A', 0);
}
public virtual bool CheckForHit(Cell guessedCell)
{
var ship = this.ships.FirstOrDefault(x => x.IsHit(guessedCell));
if (ship == null)
{
Console.WriteLine(this.Name + ": YOU HAVE MISSED!!");
return false;
}
if (ship.IsSunk())
{
Console.WriteLine(this.Name + ": YOU HAVE SUNK MY: " + ship.ShipType);
return true;
}
Console.WriteLine(this.Name + "YOU HAVE SCORED A HIT!!");
return true;
}
public override bool CheckForHit(Cell guessedCell)
{
var wasHit base.CheckForHit(guessedCell);
}
public bool Occupies(Cell cell)
{
return this.cells.Contains(cell);
}