/// <summary>
/// Takes the turn.
/// </summary>
/// <param name="point">MousePosition</param>
/// <param name="game">the game</param>
public override void TakeTurn(Point2D point, ChessGame game)
{
Move bestMove = BestMove(3, game, this);
game.Board.Move(bestMove);
game.ChangeTurn();
}
/// <summary>
/// Reverses the move.
/// </summary>
/// <param name="game">the Game</param>
/// <param name="isTurnChanged">If set to <c>true</c> the turn is swapped</param>
public void ReverseMove(ChessGame game, bool isTurnChanged)
{
if (_moves.Count == 0)
{
return;
}
Move lastMove = _moves [_moves.Count - 1];
MoveWithoutChecking(new Move(lastMove.PlayerMove, lastMove.PieceMove, null, lastMove.CellTo, lastMove.CellFrom), false);
if (lastMove.PieceCaptured != null)
{
lastMove.PlayerMove.Opponent.AddPiece(lastMove.PieceCaptured, lastMove.CellTo);
}
_moves.Remove(_moves [_moves.Count - 1]);
_moves.Remove(lastMove);
if (isTurnChanged)
{
game.ChangeTurn();
}
}
/// <summary>
/// Handle input and take a turn for Human Player
/// </summary>
/// <param name="point">usually the mouse position</param>
/// <param name="game">the game in play</param>
public virtual void TakeTurn(Point2D point, ChessGame game)
{
//if the player is selecting piece to move
if (game.State == GameState.Selecting)
{
Cell chosen = game.FetchCell(point);
//if the piece chosen is not null and belongs to the player
if (chosen != null && chosen.Piece != null && _pieces.Contains(chosen.Piece))
{
game.ChangeState(GameState.Moving);
chosen.Piece.Select();
game.SetChosenPiece(chosen.Piece);
}
}
//if the player is selecting a cell to move the piece
else if (game.State == GameState.Moving)
{
Cell chosen = game.FetchCell(point);
//if the chosen cell is the cell that contains the piece, deselect the piece
if (chosen.Piece != null && chosen.Piece.isSelected)
{
game.ChangeState(GameState.Selecting);
chosen.Piece.Deselect();
}
//if the chosen cell is in possible moves of the chosen piece
else if (chosen.isPossibleMoveOf(game.ChosenPiece, _board))
{
game.ChangeState(GameState.Moved);
_board.Move(new Move(this, game.ChosenPiece, chosen.Piece, game.ChosenPiece.Cell, chosen));
//if the king is moved, check if whether it is a castle
if (game.ChosenPiece.GetType() == typeof(King) && _board.timesKingMovedBefore(_color) == 1)
{
MoveRookInCastle(_color, chosen);
}
game.ChosenPiece.Deselect();
game.ChangeTurn();
Opponent.TakeTurn(point, game);
}
}
}