public ChessBoard()
{
chessBoard = new ChessBox[8, 8];
//Fill The Board with ChessBoxes;
bool isWhite = true;
int arrArgX = 0;
for (int i = 1; (i < 9); i++)
{
int arrArgY = 0;
for (char a = 'A'; a < 'I'; a++)
{
chessBoard[arrArgX, arrArgY] = new ChessBox(a, i, isWhite);
if (a != 'H')
{
isWhite = !isWhite;
}
arrArgY++;
}
arrArgX++;
}
//inTheMatrix
//MatrixCoordinates->ChessBoxCoordinates
//X-> 0-->'A' ,1-->'B'..
//Y-> 0--> 1, 1--> 2 ..
}
public void Move(ChessBox start, ChessBox end, bool isWhiteColorPlayer)
{
if (lastMovedWhite == isWhiteColorPlayer)
{
throw new ArgumentException("It's the other player's turn!");
}
if ((start.Figure == null) || (start.Figure.isWhite != isWhiteColorPlayer))
{
throw new InvalidFigureMovementExeption("Invalid operation! You should move one of your figures!");
}
board.Move(start, end);
lastMovedWhite = !lastMovedWhite;
}
public void Move(char figureX, int figureY, char destX, int destY, bool isWhiteColorPlayer)
{
if (lastMovedWhite == isWhiteColorPlayer)
{
throw new ArgumentException("It's the other player's turn!");
}
ChessBox figureBox = board.getChessBoxByCoordinates(figureX, figureY);
if ((figureBox.Figure == null) || (figureBox.Figure.isWhite != isWhiteColorPlayer))
{
throw new InvalidFigureMovementExeption("Invalid operation! You should move one of your figures!");
}
ChessBox endBox = board.getChessBoxByCoordinates(figureX, figureY);
board.Move(figureBox, endBox);
lastMovedWhite = !lastMovedWhite;
}
private bool isInChess(bool IswhiteKing)
{
ChessBox kingSBox = getKingChessBox(IswhiteKing);
int[] xChange = { -1, 1, 0, 0 };
int[] yChange = { 0, 0, 1, -1 };
for (int i = 0; i < 4; i++)//check rook and queen
{
char x = kingSBox.Xcoord;
int y = kingSBox.Ycoord;
x = Convert.ToChar(x + xChange[i]);
y = y + yChange[i];
while (areValidChessBoxCoordinates(x, y))
{
ChessBox boxToCheck = getChessBoxByCoordinates(x, y);
if (boxToCheck.isFigureOn())
{
if (boxToCheck.Figure.isWhite != IswhiteKing)
{
if (boxToCheck.Figure.getFigureType().Equals("Rook") || (boxToCheck.Figure.getFigureType().Equals("Queen")))
{
return(true);
}
else
{
break;
}
}
else
{
break;
}
}
x = Convert.ToChar(x + xChange[i]);
y = y + yChange[i];
}
}
//check knight
int[] xKnightMovment = { 1, 1, -1, -1, 2, -2, 2, -2 };
int[] YKnightMovment = { 2, -2, 2, -2, 1, 1, -1, -1 };
for (int i = 0; i < 8; i++)
{
char xCord = kingSBox.Xcoord;
int yCord = kingSBox.Ycoord;
xCord = Convert.ToChar(xCord + xKnightMovment[i]);
yCord = yCord + YKnightMovment[i];
if (areValidChessBoxCoordinates(xCord, yCord))
{
ChessBox chessBoxToCheck = getChessBoxByCoordinates(xCord, yCord);
if ((chessBoxToCheck.isFigureOn()) && (chessBoxToCheck.Figure.isWhite != IswhiteKing))
{
if (chessBoxToCheck.Figure.getFigureType().Equals("Knight"))
{
return(true);
}
}
}
}
int[] xBishopMovment = { 1, 1, -1, -1 };
int[] yBishopMovment = { -1, 1, -1, 1 };
///check Bishop
for (int i = 0; i < 4; i++)
{
char xBishopCheck = kingSBox.Xcoord;
int yBishopCheck = kingSBox.Ycoord;
xBishopCheck = Convert.ToChar(xBishopCheck + xBishopMovment[i]);
yBishopCheck = yBishopCheck + yBishopMovment[i];
while (areValidChessBoxCoordinates(xBishopCheck, yBishopCheck))
{
ChessBox boxToCheck = getChessBoxByCoordinates(xBishopCheck, yBishopCheck);
if (boxToCheck.isFigureOn())
{
if (boxToCheck.Figure.isWhite != IswhiteKing)
{
if (boxToCheck.Figure.getFigureType().Equals("Bishop") || (boxToCheck.Figure.getFigureType().Equals("Queen")))
{
return(true);
}
else
{
break;
}
}
else
{
break;
}
}
xBishopCheck = Convert.ToChar(xBishopCheck + xBishopMovment[i]);
yBishopCheck = yBishopCheck + yBishopMovment[i];
}
}
///check King
int[] xKingMovment = { 1, 1, 1, 0, 0, -1, -1, -1 };
int[] yKingMovment = { 1, 0, -1, 1, -1, -1, 0, 1 };
for (int i = 0; i < 8; i++)
{
char xKingCheck = kingSBox.Xcoord;
int yKingCheck = kingSBox.Ycoord;
xKingCheck = Convert.ToChar(xKingCheck + xKingMovment[i]);
yKingCheck = yKingCheck + yKingMovment[i];
if (areValidChessBoxCoordinates(xKingCheck, yKingCheck))
{
ChessBox boxToCheck = getChessBoxByCoordinates(xKingCheck, yKingCheck);
if (boxToCheck.isFigureOn())
{
if (boxToCheck.Figure.getFigureType().Equals("King") && (boxToCheck.Figure.isWhite != IswhiteKing))
{
return(true);
}
}
}
}
///check Pawn
char xPawnCheck = kingSBox.Xcoord;
int yPawnCheck = kingSBox.Ycoord;
if (IswhiteKing)
{
if (areValidChessBoxCoordinates(Convert.ToChar(xPawnCheck - 1), yPawnCheck - 1))
{
ChessBox boxToCheck = getChessBoxByCoordinates(Convert.ToChar(xPawnCheck - 1), yPawnCheck - 1);
if ((boxToCheck.isFigureOn()) && ((boxToCheck.Figure.isWhite != IswhiteKing) && (boxToCheck.Figure.getFigureType().Equals("Pawn"))))
{
return(true);
}
}
if (areValidChessBoxCoordinates(Convert.ToChar(xPawnCheck + 1), yPawnCheck - 1))
{
ChessBox boxToCheck = getChessBoxByCoordinates(Convert.ToChar(xPawnCheck + 1), yPawnCheck - 1);
if ((boxToCheck.isFigureOn()) && ((boxToCheck.Figure.isWhite != IswhiteKing) && (boxToCheck.Figure.getFigureType().Equals("Pawn"))))
{
return(true);
}
}
}
else
{
if (areValidChessBoxCoordinates(Convert.ToChar(xPawnCheck + 1), yPawnCheck + 1))
{
ChessBox boxToCheck = getChessBoxByCoordinates(Convert.ToChar(xPawnCheck + 1), yPawnCheck + 1);
if ((boxToCheck.isFigureOn()) && ((boxToCheck.Figure.isWhite != IswhiteKing) && (boxToCheck.Figure.getFigureType().Equals("Pawn"))))
{
return(true);
}
}
if (areValidChessBoxCoordinates(Convert.ToChar(xPawnCheck - 1), yPawnCheck + 1))
{
ChessBox boxToCheck = getChessBoxByCoordinates(Convert.ToChar(xPawnCheck - 1), yPawnCheck + 1);
if ((boxToCheck.isFigureOn()) && ((boxToCheck.Figure.isWhite != IswhiteKing) && (boxToCheck.Figure.getFigureType().Equals("Pawn"))))
{
return(true);
}
}
}
return(false);
}
public void Move(ChessBox start, ChessBox end)
{
Move(start.Figure, end.Xcoord, end.Ycoord);
}
private void MovePawn(Figure f, char X, int Y)
{
var chessBoxStart = this.getChessBoxByCoordinates(f.Xpositon, f.Ypositon);
var chessBoxEnd = this.getChessBoxByCoordinates(X, Y);
if (PathBetweenBoxesFree(chessBoxStart, chessBoxEnd))
{
if ((chessBoxStart.Xcoord - chessBoxEnd.Xcoord != 0))
{ //check if the pawn is trying to capture a figure
if (chessBoxEnd.isFigureOn())
{
if (chessBoxEnd.Figure.isWhite != f.isWhite)
{
f.Move(X, Y);
Figure FigureToKill = chessBoxEnd.Figure;
chessBoxEnd.deleteFigure();
chessBoxStart.Figure = null;
chessBoxEnd.Figure = f;
if (isInChess(f.isWhite))
{
chessBoxStart.Figure = chessBoxEnd.Figure;
chessBoxEnd.Figure.BackToLastPosition();
FigureToKill.BackToLastPosition();
chessBoxEnd.Figure = FigureToKill;
throw new KingInChessExeption("You cannot move here! You will be in chess!");
}
}
else
{
throw new InvalidAttackExeption("You cannot capture your own figure!");
}
}
else if (getChessBoxByCoordinates(chessBoxEnd.Xcoord, chessBoxEnd.Ycoord - 1).isFigureOn() && getChessBoxByCoordinates(chessBoxEnd.Xcoord, chessBoxEnd.Ycoord - 1).Figure.getFigureType() == "Pawn")
{ //checking for "En Passant"
ChessBox thePawnToBeCaptured = this.getChessBoxByCoordinates(chessBoxEnd.Xcoord, chessBoxEnd.Ycoord - 1);
Pawn EndPostionFigure = (Pawn)this.getChessBoxByCoordinates(chessBoxEnd.Xcoord, chessBoxEnd.Ycoord - 1).Figure;
if ((f.isWhite != EndPostionFigure.isWhite) && (EndPostionFigure.lastMoveWasTwoSquares))
{
f.Move(X, Y);
//Figure FigureToKill = chessBoxEnd.Figure;
thePawnToBeCaptured.deleteFigure();
chessBoxStart.Figure = null;
chessBoxEnd.Figure = f;
if (isInChess(f.isWhite))
{
chessBoxStart.Figure = chessBoxEnd.Figure;
chessBoxEnd.Figure.BackToLastPosition();
EndPostionFigure.pawnReborn();
getChessBoxByCoordinates(EndPostionFigure.Xpositon, EndPostionFigure.Ypositon).Figure = EndPostionFigure;
chessBoxEnd.Figure = null;
//chessBoxEnd.Figure = FigureToKill;
throw new KingInChessExeption("You cannot move here! You will be in chess!");
}
}
else
{
throw new InvalidFigureMovementExeption("Invalid pawn coordinates!");
}
}
else if (getChessBoxByCoordinates(chessBoxEnd.Xcoord, chessBoxEnd.Ycoord + 1).isFigureOn() && getChessBoxByCoordinates(chessBoxEnd.Xcoord, chessBoxEnd.Ycoord + 1).Figure.getFigureType() == "Pawn")
{ //checking for "En Passant" 2
ChessBox thePawnToBeCaptured = this.getChessBoxByCoordinates(chessBoxEnd.Xcoord, chessBoxEnd.Ycoord + 1);
Pawn EndPostionFigure = (Pawn)this.getChessBoxByCoordinates(chessBoxEnd.Xcoord, chessBoxEnd.Ycoord + 1).Figure;
if ((f.isWhite != EndPostionFigure.isWhite) && (EndPostionFigure.lastMoveWasTwoSquares))
{
f.Move(X, Y);
//Figure FigureToKill = chessBoxEnd.Figure;
thePawnToBeCaptured.deleteFigure();
chessBoxStart.Figure = null;
chessBoxEnd.Figure = f;
if (isInChess(f.isWhite))
{
chessBoxStart.Figure = chessBoxEnd.Figure;
chessBoxEnd.Figure.BackToLastPosition();
EndPostionFigure.pawnReborn();
getChessBoxByCoordinates(EndPostionFigure.Xpositon, EndPostionFigure.Ypositon).Figure = EndPostionFigure;
chessBoxEnd.Figure = null;
//chessBoxEnd.Figure = FigureToKill;
throw new KingInChessExeption("You cannot move here! You will be in chess!");
}
}
else
{
throw new InvalidFigureMovementExeption("Invalid pawn coordinates!");
}
}
else
{
throw new InvalidFigureMovementExeption("Invalid pawn coordinates!");
}
}
else
{
if (!chessBoxEnd.isFigureOn())
{
f.Move(X, Y);
chessBoxStart.Figure = null;
chessBoxEnd.Figure = f;
if (isInChess(f.isWhite))
{
chessBoxStart.Figure = chessBoxEnd.Figure;
chessBoxEnd.Figure.BackToLastPosition();
chessBoxEnd.Figure = null;
throw new KingInChessExeption("You cannot move here! You will be in chess!");
}
}
else
{
throw new InvalidAttackExeption("Pawn cannot capture figure on this coordiantes!");
}
}
}
else
{
throw new PathBetweenBoxesNotFreeExeption("The path between the boxes is not free");
}
}
public bool PathBetweenBoxesFree(ChessBox start, ChessBox end)
{
if (start.Xcoord == end.Xcoord)
{
char sameX = start.Xcoord;
if (start.Ycoord < end.Ycoord)
{
for (int i = start.Ycoord + 1; i < end.Ycoord; i++)
{
if (getChessBoxByCoordinates(sameX, i).isFigureOn())
{
return(false);
}
}
return(true);
}
else if (start.Ycoord > end.Ycoord)
{
for (int i = end.Ycoord + 1; i < start.Ycoord; i++)
{
if (getChessBoxByCoordinates(sameX, i).isFigureOn())
{
return(false);
}
}
return(true);
}
}
else if (start.Ycoord == end.Ycoord)
{
int sameY = start.Ycoord;
if (start.Xcoord < end.Xcoord)
{
for (int i = start.Xcoord + 1; i < end.Xcoord; i++)
{
if (getChessBoxByCoordinates(Convert.ToChar(i), sameY).isFigureOn())
{
return(false);
}
}
return(true);
}
else if (start.Xcoord > end.Xcoord)
{
for (int i = end.Xcoord + 1; i < start.Xcoord; i++)
{
if (getChessBoxByCoordinates(Convert.ToChar(i), sameY).isFigureOn())
{
return(false);
}
}
return(true);
}
}
else if (((end.Xcoord > end.Ycoord) && (end.Ycoord > start.Ycoord)) && (((end.Xcoord - start.Xcoord) == (end.Ycoord - start.Ycoord))))
{ /// down right
char indexX = Convert.ToChar(start.Xcoord + 1);
int indexY = start.Ycoord + 1;
while (indexY < end.Ycoord)
{
if (getChessBoxByCoordinates(indexX, indexY).isFigureOn())
{
return(false);
}
indexX++;
indexY++;
}
return(true);
}
else if (((end.Xcoord > start.Xcoord) && (start.Ycoord > end.Ycoord)) && ((end.Xcoord - start.Xcoord) == (start.Ycoord - end.Ycoord)))
{ /// up right
char indexX = Convert.ToChar(start.Xcoord + 1);
int indexY = start.Ycoord - 1;
while (indexX < end.Xcoord)
{
if (getChessBoxByCoordinates(indexX, indexY).isFigureOn())
{
return(false);
}
indexX++;
indexY--;
}
return(true);
}
else if ((((start.Xcoord > end.Xcoord) && (end.Ycoord > start.Ycoord))) && ((start.Xcoord - end.Xcoord) == (end.Ycoord - start.Ycoord)))
{ /// down left
char indexX = Convert.ToChar(start.Xcoord - 1);
int indexY = start.Ycoord + 1;
while (indexY < end.Ycoord)
{
if (getChessBoxByCoordinates(indexX, indexY).isFigureOn())
{
return(false);
}
indexX--;
indexY++;
}
return(true);
}
else if ((((start.Xcoord > end.Xcoord) && (start.Ycoord > end.Ycoord))) && ((start.Xcoord - end.Xcoord) == (start.Ycoord - end.Ycoord)))
{ /// up left
char indexX = Convert.ToChar(start.Xcoord - 1);
int indexY = start.Ycoord - 1;
while (indexY > end.Ycoord)
{
if (getChessBoxByCoordinates(indexX, indexY).isFigureOn())
{
return(false);
}
indexX--;
indexY--;
}
return(true);
}
return(true);
}