public override void WinnginConditions()
{
for (int i = 0; i < this.Board.TotalCols; i++)
{
try
{
var figure = this.Board.GetFigureAtPosition(new Position(this.Board.TotalRows, (char)('a' + i)));
if (figure is King)
{
this.GameState = GameState.WhiteWon;
break;
}
}
catch (Exception)
{
}
}
var kingPosition = this.Board.GetKingPosition(ChessColor.White);
var toUpLeft = new Position(kingPosition.Row + 1, (char)(kingPosition.Col - 1));
var toUpRight = new Position(kingPosition.Row + 1, (char)(kingPosition.Col + 1));
var toDownLeft = new Position(kingPosition.Row - 1, (char)(kingPosition.Col - 1));
var toDownRight = new Position(kingPosition.Row - 1, (char)(kingPosition.Col + 1));
if (!(this.CheckKingToOptions(toUpLeft) ||
this.CheckKingToOptions(toUpRight) ||
this.CheckKingToOptions(toDownLeft) ||
this.CheckKingToOptions(toDownRight)))
{
this.GameState = GameState.BlackWon;
}
}
private void AddKingToBoardRow(IPlayer player, IBoard board, int chessRow, char chessCol)
{
var figureInstance = new King(player.Color);
player.AddFigure(figureInstance);
var position = new Position(chessRow, chessCol);
board.AddFigure(figureInstance, position);
}
public void AddFigureToBoard(IPlayer firstPlayser, IPlayer secondPlayer, IBoard board, string fen)
{
var splitedFen = fen.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
var index = 0;
for (int row = splitedFen.Length - 1; row >= 0; row--)
{
var currentRow = this.MakeRow(splitedFen[row]);
for (int col = 0; col < currentRow.Length; col++)
{
if (currentRow[col] == Pown)
{
var pawn = new Pawn(secondPlayer.Color);
secondPlayer.AddFigure(pawn);
var position = new Position(index + 1, (char)(col + 'a'));
board.AddFigure(pawn, position);
}
else if (currentRow[col] == King)
{
var figureInstance = new King(firstPlayser.Color);
firstPlayser.AddFigure(figureInstance);
var position = new Position(index + 1, (char)(col + 'a'));
board.AddFigure(figureInstance, position);
}
}
index++;
}
}
private void AddPawnsToBoardRow(IPlayer player, IBoard board, int chessRow)
{
for (int i = 0; i < GlobalConstants.StandartGameTotalBoardCols - 2; i += 2)
{
var pawn = new Pawn(player.Color);
player.AddFigure(pawn);
var position = new Position(chessRow, (char)(i + 'a'));
board.AddFigure(pawn, position);
}
// TODO: Remove
//// For testing only
//var pawn = new Pawn(player.Color);
//player.AddFigure(pawn);
//var position = new Position(8, (char)(0 + 'a'));
//board.AddFigure(pawn, position);
//pawn = new Pawn(player.Color);
//player.AddFigure(pawn);
//position = new Position(8, (char)(2 + 'a'));
//board.AddFigure(pawn, position);
//pawn = new Pawn(player.Color);
//player.AddFigure(pawn);
//position = new Position(8, (char)(4 + 'a'));
//board.AddFigure(pawn, position);
//pawn = new Pawn(player.Color);
//player.AddFigure(pawn);
//position = new Position(6, (char)(4 + 'a'));
//board.AddFigure(pawn, position);
}
public static Position FromChessCoordinates(int chessRow, char chessCol)
{
var newPosition = new Position(chessRow, chessCol);
ChechIfValid(newPosition);
return newPosition;
}
public IFigure GetFigureAtPosition(Position position)
{
int arrRow = this.GetArrayRow(position.Row);
int arrCol = this.GetArrayCol(position.Col);
return this.board[arrRow, arrCol];
}
public void AddFigure(IFigure figure, Position position)
{
ObjectValidator.CheckIfObjectIsNull(figure, GlobalErrorMessages.NullFigureErrorMessage);
Position.ChechIfValid(position);
int arrRow = this.GetArrayRow(position.Row);
int arrCol = this.GetArrayCol(position.Col);
this.board[arrRow, arrCol] = figure;
}
private void AddPawnsToBoardRow(IPlayer player, IBoard board, int chessRow)
{
for (int i = 0; i < GlobalConstants.StandartGameTotalBoardCols; i++)
{
var pawn = new Pawn(player.Color);
player.AddFigure(pawn);
var position = new Position(chessRow, (char)(i + 'a'));
board.AddFigure(pawn, position);
}
}
private void AddArmyToBoardRow(IPlayer player, IBoard board, int chessRow)
{
for (int i = 0; i < GlobalConstants.StandartGameTotalBoardCols; i++)
{
var figureType = this.figureTypes[i];
var figureInstance = (IFigure)Activator.CreateInstance(figureType, player.Color);
player.AddFigure(figureInstance);
var position = new Position(chessRow, (char)(i + 'a'));
board.AddFigure(figureInstance, position);
}
}
public static void ChechIfValid(Position position)
{
if (position.Row < GlobalConstants.MinimumRowValueOnBoard
|| position.Row > GlobalConstants.MaximumRowValueOnBoard)
{
throw new IndexOutOfRangeException("Selected row position is not valid");
}
if (position.Col < GlobalConstants.MinimumColValueOnBoard
|| position.Col > GlobalConstants.MaximumColValueOnBoard)
{
throw new IndexOutOfRangeException("Selected col position is not valid");
}
}
public void CheckIfSquareIsFree(IFigure figure, Position position)
{
try
{
ObjectValidator.CheckIfObjectIsNull(figure, GlobalErrorMessages.NullFigureErrorMessage);
Position.ChechIfValid(position);
}
catch (Exception)
{
throw new ArgumentException(GlobalErrorMessages.InvalidMove);
}
}
private bool CheckKingToOptions(Position to)
{
var chessColor = ChessColor.White;
var king = new King(chessColor);
try
{
this.CheckIfToPositionIsEmpty(king, to);
}
catch (Exception)
{
return false;
throw;
}
return true;
}
public Position GetKingPosition(ChessColor color)
{
var currentRow = 0;
var currentCol = (char)('a');
for (int row = 0; row < this.TotalCols; row++)
{
for (int col = 0; col < this.TotalRows; col++)
{
currentRow = row;
currentCol = (char)('a' + col);
var position = new Position(currentRow, currentCol);
var figureAtPosition = this.GetFigureAtPosition(position);
if (figureAtPosition is Figures.King && figureAtPosition.Color == color)
{
return new Position(currentRow, currentCol);
}
}
}
return new Position(currentRow, currentCol);
}
private bool CheckOtherFigureIfValid(IBoard board, Position to, ChessColor color)
{
var otherFigure = board.GetFigureAtPosition(to);
if (otherFigure != null && otherFigure.Color == color)
{
return false;
}
return true;
}
public void GameEngine(string gameId, string userId, string moveFrom, string moveTo)
{
var game = this.GetGame(gameId);
var playerID = userId;
var players = this.GetPlayers();
var firstPlayer = players
.FirstOrDefault(x => x.Id == game.FirstPlayerId);
var secondPlayer = players
.FirstOrDefault(x => x.Id == game.SecondPlayerId);
var oldFen = game.Board;
// if game doesn't exist
if (game == null)
{
return;
}
if (firstPlayer == null || secondPlayer == null)
{
return;
}
// nothing to move
if (moveFrom == moveTo)
{
return;
}
// check If player is 1 or 2
if (playerID != game.FirstPlayerId && playerID != game.SecondPlayerId)
{
// return you are not part of this game
this.Clients.Group(gameId).move(oldFen);
return;
}
if (playerID == game.FirstPlayerId && game.State != KingSurvivalGameState.TurnKing)
{
// this is not your turn
this.Clients.Group(gameId).move(oldFen);
return;
}
if (playerID == game.SecondPlayerId && game.State != KingSurvivalGameState.TurnPown)
{
// this is not your turn
this.Clients.Group(gameId).move(oldFen);
return;
}
var renderer = new WebRenderer(this.Clients, game, this.data);
var furstPlayer = new Player(firstPlayer.UserName, ChessColor.White);
var scondPlayer = new Player(secondPlayer.UserName, Chess.Common.ChessColor.White);
var kingSurvivalInitilizeStrategy = new KingSurvivalGameWebInitializationStrategy(oldFen, furstPlayer, scondPlayer);
var from = new Position(moveFrom[1] - '0', moveFrom[0]);
var to = new Position(moveTo[1] - '0', moveTo[0]);
var move = new Move(from, to);
var inputProvider = new WebInputProvider(move);
var movementStrategy = new KingSurvivalMovementStrategy();
var gameEngine = new KingSurvivalEngineWeb(renderer, inputProvider, movementStrategy);
gameEngine.Initialize(kingSurvivalInitilizeStrategy);
gameEngine.Play();
}
private bool CheckDiagonalMove(Position from, Position to)
{
return from.Col + 1 == to.Col || from.Col - 1 == to.Col;
}
public void RemoveFigure(Position position)
{
Position.ChechIfValid(position);
int arrRow = this.GetArrayRow(position.Row);
int arrCol = this.GetArrayCol(position.Col);
this.board[arrRow, arrCol] = null;
}
public void MoveFigureAtPosition(IFigure figure, Position from, Position to)
{
int arrFromRow = this.GetArrayRow(from.Row);
int arrFromCol = this.GetArrayCol(from.Col);
this.board[arrFromRow, arrFromCol] = null;
int arrToRow = this.GetArrayRow(to.Row);
int arrToCol = this.GetArrayCol(to.Col);
this.board[arrToRow, arrToCol] = figure;
}
protected void CheckIfPlayerOwnsFigure(IPlayer player, IFigure figure, Position from)
{
if (figure == null)
{
throw new InvalidOperationException(string.Format("Position {0}{1} is empty", from.Col, from.Row));
}
if (figure.Color != player.Color)
{
throw new InvalidOperationException(
string.Format("Figure at this position {0}{1} is not yours", from.Col, from.Row));
}
}
protected void CheckIfToPositionIsEmpty(IFigure figure, Position to)
{
var figureAtPosition = this.Board.GetFigureAtPosition(to);
if (figureAtPosition != null && figureAtPosition.Color == figure.Color)
{
throw new InvalidOperationException(
string.Format("You already have a figure at {0}{1}!", to.Col, to.Row));
}
}