public bool IsEquivalent(GameMove other)
{
return
(From.IsEquivalent(other.From) &&
To.IsEquivalent(other.To) &&
Who == other.Who);
}
/// <summary>
/// Serializes move into its algebraic notation representation
/// </summary>
/// <param name="move">Move to serialize</param>
/// <returns>Textual representation of move</returns>
private static string SerializeMoveToAlgebraicNotation(GameMove move)
{
char separator = move.ToWhom == null ? '-' : 'x';
return
($"{GetCharacterForFigure(move.Who)}{GetCharacterForPosition(move.From.X)}{move.From.Y + 1}{separator}{GetCharacterForPosition(move.To.X)}{move.To.Y + 1}");
}
/// <summary>
/// Validates and performs given move
/// </summary>
/// <param name="game">Description of game</param>
/// <returns>Result of validation</returns>
private static ValidationResult ValidateAndPerform(GameData game, GameMove myMove)
{
if (myMove == null)
{
return(new ValidationResult(false, null));
}
var myMoves = GetAllMoves(game.Chessboard, game.PlayerOnMove);
// move is in possible moves
if (myMoves.Any(x => x.IsEquivalent(myMove)))
{
PerformMove(game, myMove);
}
else
{
return(new ValidationResult(false, null));
}
// move can't end in beeing checked
if (PlayerIsChecked(game, game.PlayerOnMove))
{
return(new ValidationResult(false, null));
}
game.RecordOfGame.Add(SerializeMoveToAlgebraicNotation(myMove));
// chech whether opponent in in checkmate or stalemate
if (PlayerHasNoPossibleMoves(game, GetOppositeColor(game.PlayerOnMove)))
{
if (PlayerIsChecked(game, GetOppositeColor(game.PlayerOnMove)))
{
game.EndState = GetWinStateFromPlayerColor(game.PlayerOnMove);
}
else
{
game.EndState = GameState.Draw;
}
}
// alternate playing player
game.PlayerOnMove = GetOppositeColor(game.PlayerOnMove);
return(new ValidationResult(true, game));
}
/// <summary>
/// Reverts given move
/// </summary>
/// <param name="game">Description of game</param>
/// <param name="move">Move to revert</param>
/// <param name="tempSavedTakenFigure">Saved figure in case, that move was capture</param>
private static void RevertMove(GameData game, GameMove move, Figure tempSavedTakenFigure)
{
game.Chessboard.MoveTo(move.To, move.From);
game.Chessboard.AddFigure(tempSavedTakenFigure, move.To);
}
/// <summary>
/// Performs given move on chessboard
/// </summary>
/// <param name="game">Description of game</param>
/// <param name="move">Move to perform</param>
private static void PerformMove(GameData game, GameMove move)
{
game.Chessboard.GetFigureOnPosition(move.From).Moved = true;
game.Chessboard.MoveTo(move.From, move.To);
}