private static void ChessMove(ChessGame game, BoardInternal game2, string move, Validation validate)
{
MoveModel mm = validate.GetMoveCoordsAndPiece(game, move);
if (mm.srcval == " ")
{
Message.Append("ERROR No piece to move from that square! :" + move + " ");
}
else if (!validate.IsWhiteOrBlackToMove(game, move))
{
if (game.Moves.Count % 2 == 0)
{
Message.Append("ERROR White's move! :" + move + " ");
}
else
{
Message.Append("ERROR Black's move! :" + move + " ");
}
}
else if (validate.IsPieceMoveValid(game, move) && validate.IsClearPath(game, game2, move) && !validate.DoesMovePutSelfInCheck(move))
{
if (validate.StorePieceMovePiece(game, move))
{
game.Moves.Add(move);
}
}
else
{
Message.Append("ERROR Invalid move :" + move + " ");
}
}
public MoveModel GetMoveCoordsAndPiece(ChessGame game, string move)
{
MoveModel mm = new MoveModel();
var src = move.Substring(0, 2);
var dst = move.Substring(2, 2);
mm.xsrc = (int)Convert.ToChar(src.Substring(0, 1));
mm.ysrc = (int)Convert.ToChar(src.Substring(1, 1));
mm.xdst = (int)Convert.ToChar(dst.Substring(0, 1));
mm.ydst = (int)Convert.ToChar(dst.Substring(1, 1));
mm.srcval = (GetVal(game.Board, src));
mm.dstval = (GetVal(game.Board, dst));
return(mm);
}
public bool IsWhiteOrBlackToMove(ChessGame game, string move)
{
MoveModel mm = GetMoveCoordsAndPiece(game, move);
//blacks turn?
if (" r n b q k p".Contains(mm.srcval))
{
if (game.Moves.Count % 2 == 0)
{
return(false);
}
}
//whites turn?
if (" R N B Q K P".Contains(mm.srcval))
{
if (game.Moves.Count % 2 != 0)
{
return(false);
}
}
return(true);
}
public bool IsPieceMoveValid(ChessGame game, string move)
{
MoveModel mm = GetMoveCoordsAndPiece(game, move);
//If castling
if ((move == "0") || (move == "00"))
{
if (IsCastlingValid(game, move))
{
return(true);
}
return(false);
}
switch (mm.srcval)
{
case " r":
case " R":
if (!IsMovingLikeARook(mm.xsrc, mm.ysrc, mm.xdst, mm.ydst))
{
return(false);
}
break;
case " n":
case " N":
if (!IsMovingLikeAKnight(mm.xsrc, mm.ysrc, mm.xdst, mm.ydst))
{
return(false);
}
break;
case " b":
case " B":
if (!IsMovingLikeABishop(mm.xsrc, mm.ysrc, mm.xdst, mm.ydst))
{
return(false);
}
break;
case " q":
case " Q":
if (!IsMovingLikeAQueen(mm.xsrc, mm.ysrc, mm.xdst, mm.ydst))
{
return(false);
}
break;
case " k":
case " K":
if (!IsMovingLikeAKing(mm.xsrc, mm.ysrc, mm.xdst, mm.ydst))
{
return(false);
}
break;
case " p":
if (!IsMovingLikeABlackPawn(mm.dstval, mm.xsrc, mm.ysrc, mm.xdst, mm.ydst))
{
return(false);
}
break;
case " P":
if (!IsMovingLikeAWhitePawn(mm.dstval, mm.xsrc, mm.ysrc, mm.xdst, mm.ydst))
{
return(false);
}
break;
default:
break;
}
return(true);
}
