private void listenerSquare(Square sq, bool whiteTurn)
{
List pWhite = null;
List pBlack = null;
ImageList iWhite = new ImageList();
ImageList iBlack = new ImageList();
Piece piece = null;
if (whiteTurn)
{
piece = Board.getInstance().consultPiece(sq.getPosition(), true);
}
else
{
piece = Board.getInstance().consultPiece(sq.getPosition(), false);
}
if (piece != null)
{
if (MainForm.selectedPiece != null)
{
deletePieceSquare(MainForm.selectedPiece);
deleteAllowedMovements(MainForm.selectedPiece.getAllowedMovements());
}
MainForm.selectedPiece = piece;
paintPiece(MainForm.selectedPiece);
paintAllowedMovements(MainForm.selectedPiece.getAllowedMovements());
}
else //Empty square or occupied by an opponent's piece
{
Color turnColor;
if (whiteTurn)
{
turnColor = Color.White;
}
else
{
turnColor = Color.Black;
}
if (MainForm.selectedPiece != null && MainForm.selectedPiece.getColor() == turnColor)
{ // A piece of the current player is selected
Position posIni = MainForm.selectedPiece.getPosition();
Position posFin = sq.getPosition();
Piece deletedPiece = null; //Deleted piece. It is returned in case an undo action is triggered.
if (MainForm.selectedPiece.isvalidMove(posFin)) //If the movement is valid ...
{
if (Caretaker.mementoBoard != null)
{
pWhite = Caretaker.mementoBoard.getWhitePieces().clone();
pBlack = Caretaker.mementoBoard.getBlackPieces().clone();
}
if (Caretaker.mementoImages != null)
{
foreach (Image i in Caretaker.mementoImages.getWhiteImages().Images)
{
iWhite.Images.Add(i);
}
foreach (Image i in Caretaker.mementoImages.getBlackImages().Images)
{
iBlack.Images.Add(i);
}
}
createMementos();
deletedPiece = realizeMovement(posFin);
BoardLogic.updateListAllowedMovements();
bool kingCheck = false;
if (whiteTurn)
{
kingCheck = BoardLogic.isCheck(true);
}
else
{
kingCheck = BoardLogic.isCheck(false);
}
if (kingCheck)
{
//Undo the movement
realizeMovement(posIni);
Caretaker.mementoBoard.setWhitePieces(pWhite);
Caretaker.mementoBoard.setBlackPieces(pBlack);
Caretaker.mementoImages.setWhiteImages(iWhite);
Caretaker.mementoImages.setBlackImages(iBlack);
if (deletedPiece != null)
{
//Return the deleted piece
if (whiteTurn)
{
blackPieces.insert(deletedPiece);
}
else
{
whitePieces.insert(deletedPiece);
}
//Delete inserted image
if (whiteTurn)
{
mainForm.deleteLastImage(mainForm.getBlackImages());
}
else
{
mainForm.deleteLastImage(mainForm.getWhiteImages());
}
drawPiece(deletedPiece);
}
MessageBox.Show(this, "Your king would be in check if you carried out this movement", "Message", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else //The king is not in check
{
int lastRow = -1;
if (whiteTurn)
{
lastRow = 0;
}
else
{
lastRow = 7;
}
if (MainForm.selectedPiece is Pawn && posFin.getRow() == lastRow)
{
//Promotion
FormPromotion f = new FormPromotion(MainForm.selectedPiece as Pawn);
f.ShowDialog();
}
BoardLogic.updateListAllowedMovements();
bool doCheck;
if (whiteTurn)
{
doCheck = BoardLogic.isCheck(false);
}
else
{
doCheck = BoardLogic.isCheck(true);
}
if (doCheck)
{
MessageBox.Show(this, "King is in check!", "Check", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
if (deletedPiece != null)
{
if (whiteTurn)
{
mainForm.paintDeletedBlackPieces();
}
else
{
mainForm.paintDeletedWhitePieces();
}
}
mainForm.showInLog(MainForm.selectedPiece.ToString() + " --> " + "From " + posIni.ToString() + " to " + posFin.ToString());
mainForm.enableUndo();
mainForm.shiftTurn();
}
}
}
}
}