//gets all bishop danger moves from a square - "x-rays" the king
public static List <square> bishopDangerMoves(square startSquare)
{
List <square> ret = new List <square>();
int x = startSquare.xPosition;
int y = startSquare.yPosition;
int i = x; int j = y;
bool shouldStop = false;
//starting clockwise from the top
i = x + 1; j = y - 1;
while (i < 8 && j >= 0)
{
ret.Add(board.squareArray[i, j]);
if (board.squareArray[i, j].here != null && board.squareArray[i, j].here.pieceType != "king")
//&& board.squareArray[i, j].here.pieceColor != board.turn)
{
shouldStop = true;
}
if (board.squareArray[i, j].here != null && board.squareArray[i, j].here.pieceType == "king" &&
board.squareArray[i, j].here.pieceColor != board.turn)
{
shouldStop = true;
}
if (shouldStop)
{
break;
}
i++; j--;
}
//90
i = x + 1; j = y + 1; shouldStop = false;
while (i < 8 && j < 8)
{
ret.Add(board.squareArray[i, j]);
if (board.squareArray[i, j].here != null && board.squareArray[i, j].here.pieceType != "king")
//&& board.squareArray[i, j].here.pieceColor != board.turn)
{
shouldStop = true;
}
if (board.squareArray[i, j].here != null && board.squareArray[i, j].here.pieceType == "king" &&
board.squareArray[i, j].here.pieceColor != board.turn)
{
shouldStop = true;
}
if (shouldStop)
{
break;
}
i++; j++;
}
//180
i = x - 1; j = y + 1; shouldStop = false;
while (i >= 0 && j < 8)
{
ret.Add(board.squareArray[i, j]);
if (board.squareArray[i, j].here != null && board.squareArray[i, j].here.pieceType != "king")
//&& board.squareArray[i, j].here.pieceColor != board.turn)
{
shouldStop = true;
}
if (board.squareArray[i, j].here != null && board.squareArray[i, j].here.pieceType == "king" &&
board.squareArray[i, j].here.pieceColor != board.turn)
{
shouldStop = true;
}
if (shouldStop)
{
break;
}
i--; j++;
}
//270
i = x - 1; j = y - 1; shouldStop = false;
while (i >= 0 && j >= 0)
{
ret.Add(board.squareArray[i, j]);
if (board.squareArray[i, j].here != null && board.squareArray[i, j].here.pieceType != "king")
//&& board.squareArray[i, j].here.pieceColor != board.turn)
{
shouldStop = true;
}
if (board.squareArray[i, j].here != null && board.squareArray[i, j].here.pieceType == "king" &&
board.squareArray[i, j].here.pieceColor != board.turn)
{
shouldStop = true;
}
if (shouldStop)
{
break;
}
i--; j--;
}
return(ret);
}
//gets the rook slider moves - for calculating pushMask
public static List <square> rookSliderMoves(square startSquare)
{
List <square> ret = new List <square>();
int x = startSquare.xPosition;
int y = startSquare.yPosition;
int i = x; int j = y;
bool shouldStop = false;
//starting from the top, clockwise
i = x; j = y - 1; shouldStop = false;
while (j >= 0)
{
ret.Add(board.squareArray[i, j]);
if (board.squareArray[i, j].here != null)
{
shouldStop = true;
}
if (shouldStop)
{
break;
}
j--;
}
//90
i = x + 1; j = y; shouldStop = false;
while (i < 8)
{
ret.Add(board.squareArray[i, j]);
if (board.squareArray[i, j].here != null)
{
shouldStop = true;
}
if (shouldStop)
{
break;
}
i++;
}
//180
i = x; j = y + 1; shouldStop = false;
while (j < 8)
{
ret.Add(board.squareArray[i, j]);
if (board.squareArray[i, j].here != null)
{
shouldStop = true;
}
if (shouldStop)
{
break;
}
j++;
}
//270
i = x - 1; j = y; shouldStop = false;
while (i >= 0)
{
ret.Add(board.squareArray[i, j]);
if (board.squareArray[i, j].here != null)
{
shouldStop = true;
}
if (shouldStop)
{
break;
}
i--;
}
return(ret);
}
public move(piece p, square s)
{
movablePiece = p;
targetSquare = s;
}
//A.I. play constructor
public board(string mode, string faction)
{
InitializeComponent();
board.mode = mode;
loadBoard(this, null);
playerfaction = faction;
//initiate square array with no pieces present
squareArray = new square[8, 8];
for (int i = 0; i < 8; i++)
{
for (int j = 0; j < 8; j++)
{
squareArray[i, j] = new square(i, j);
}
}
//only normal chess for now
foreach (square sq in squareArray)
{
if (sq.yPosition == 1 || sq.yPosition == 6)
{
if (sq.yPosition == 1)
{
sq.here = new Pieces.pawn(sq.xPosition, sq.yPosition, "black");
}
else
{
sq.here = new Pieces.pawn(sq.xPosition, sq.yPosition, "white");
}
//draw the piece on the chessboard
_chessBoardPanels[sq.xPosition, sq.yPosition].BackgroundImage = sq.here.pieceImage;
}
if (sq.yPosition == 0) //black pieces
{
if (sq.xPosition == 0 || sq.xPosition == 7)
{
sq.here = new Pieces.rook(sq.xPosition, sq.yPosition, "black");
}
if (sq.xPosition == 1 || sq.xPosition == 6)
{
sq.here = new Pieces.knight(sq.xPosition, sq.yPosition, "black");
}
if (sq.xPosition == 2 || sq.xPosition == 5)
{
sq.here = new Pieces.bishop(sq.xPosition, sq.yPosition, "black");
}
if (sq.xPosition == 3)
{
sq.here = new Pieces.queen(sq.xPosition, sq.yPosition, "black");
}
if (sq.xPosition == 4)
{
sq.here = new Pieces.king(sq.xPosition, sq.yPosition, "black");
}
_chessBoardPanels[sq.xPosition, sq.yPosition].BackgroundImage = sq.here.pieceImage;
}
if (sq.yPosition == 7) //white pieces
{
if (sq.xPosition == 0 || sq.xPosition == 7)
{
sq.here = new Pieces.rook(sq.xPosition, sq.yPosition, "white");
}
if (sq.xPosition == 1 || sq.xPosition == 6)
{
sq.here = new Pieces.knight(sq.xPosition, sq.yPosition, "white");
}
if (sq.xPosition == 2 || sq.xPosition == 5)
{
sq.here = new Pieces.bishop(sq.xPosition, sq.yPosition, "white");
}
if (sq.xPosition == 3)
{
sq.here = new Pieces.queen(sq.xPosition, sq.yPosition, "white");
}
if (sq.xPosition == 4)
{
sq.here = new Pieces.king(sq.xPosition, sq.yPosition, "white");
}
_chessBoardPanels[sq.xPosition, sq.yPosition].BackgroundImage = sq.here.pieceImage;
}
//add the pieces to the piece list
if (sq.here != null)
{
if (sq.here.pieceColor == "white")
{
whitePieces.Add(sq.here);
}
else
{
blackPieces.Add(sq.here);
}
}
}
}
//TODO
//handler of the player clicking a square on the board
private void boardClickHandler(object sender, EventArgs e)
{
var colorDark = Color.DarkGray;
var colorLight = Color.White;
var colorSelected = Color.OrangeRed;
var colorMovable = Color.DarkSeaGreen;
Panel clickedPanel = (Panel)sender;
//the piece the player tried to click (can be null! = clicked an empty square)
piece clickedPiece = squareArray[clickedPanel.Location.X / tileSize, clickedPanel.Location.Y / tileSize].here;
square clickedSquare = squareArray[clickedPanel.Location.X / tileSize, clickedPanel.Location.Y / tileSize];
//selecting squares works
//TODO - check for present pieces
//TODO - check of other selected squares - global variable?
//dummy for debugging the game board - uncomment to use
/*if(clickedPanel.BackColor == colorSelected)
* {
* if ((clickedPanel.Location.X / tileSize) % 2 == 0)
* clickedPanel.BackColor = (clickedPanel.Location.Y / tileSize) % 2 != 0 ? colorDark : colorLight;
* else
* clickedPanel.BackColor = (clickedPanel.Location.Y / tileSize) % 2 != 0 ? colorLight : colorDark;
* }
* else clickedPanel.BackColor = colorSelected;*/
//if it's the first turn of the game, end turn to evaluate moves for pieces
if (firstMove)
{
firstMove = false;
endTurn();
if (board.mode == "Play versus A.I." && turn != playerfaction)
{
move aiMove = ai_core.getMove();
//simulate the ai clicking on the board to make the move
boardClickHandler(_chessBoardPanels[aiMove.movablePiece.xPosition, aiMove.movablePiece.yPosition], null);
boardClickHandler(_chessBoardPanels[aiMove.targetSquare.xPosition, aiMove.targetSquare.yPosition], null);
}
}
if (clickedPiece == null && selectedPiece == null) //player clicked meaninglessly
{
//do nothing
}
//the player attempted to select a piece while not having one selected
else if (selectedPiece == null) //clicked piece can NOT be null
{
if (clickedPiece.pieceColor == turn) //the player clicked his own piece (selected)
{
selectedPiece = clickedPiece;
movableSquares = new List <square>();
foreach (move m in legalMoves)
{
if (m.movablePiece == selectedPiece)
{
movableSquares.Add(m.targetSquare);
}
}
//update the gameboard with movable squares (in green)
_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].BackColor = colorSelected;
foreach (square s in movableSquares)
{
_chessBoardPanels[s.xPosition, s.yPosition].BackColor = colorMovable;
}
}
//else do nothing - the player tried to select the enemy piece
}
//the player attempted to deselect a piece
else if ((clickedPiece == null && !(movableSquares.Contains(clickedSquare))) || (clickedPiece == selectedPiece))
{
//deselect the selected piece
if ((_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].Location.X / tileSize) % 2 == 0)
{
_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].BackColor = (_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].Location.Y / tileSize) % 2 != 0 ? colorDark : colorLight;
}
else
{
_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].BackColor = (_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].Location.Y / tileSize) % 2 != 0 ? colorLight : colorDark;
}
selectedPiece = null;
//update the board to deselect the pieces in color
foreach (square s in movableSquares)
{
Panel workingPanel = _chessBoardPanels[s.xPosition, s.yPosition];
if ((workingPanel.Location.X / tileSize) % 2 == 0)
{
workingPanel.BackColor = (workingPanel.Location.Y / tileSize) % 2 != 0 ? colorDark : colorLight;
}
else
{
workingPanel.BackColor = (workingPanel.Location.Y / tileSize) % 2 != 0 ? colorLight : colorDark;
}
}
movableSquares = null;
}
//the player selected one of his other pieces while having one selected already
else if (selectedPiece != null && clickedPiece != null && clickedPiece.pieceColor == turn)
{
//deselect the selected piece
if ((_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].Location.X / tileSize) % 2 == 0)
{
_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].BackColor = (_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].Location.Y / tileSize) % 2 != 0 ? colorDark : colorLight;
}
else
{
_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].BackColor = (_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].Location.Y / tileSize) % 2 != 0 ? colorLight : colorDark;
}
selectedPiece = null;
//update the board to deselect the pieces in color
foreach (square s in movableSquares)
{
Panel workingPanel = _chessBoardPanels[s.xPosition, s.yPosition];
if ((workingPanel.Location.X / tileSize) % 2 == 0)
{
workingPanel.BackColor = (workingPanel.Location.Y / tileSize) % 2 != 0 ? colorDark : colorLight;
}
else
{
workingPanel.BackColor = (workingPanel.Location.Y / tileSize) % 2 != 0 ? colorLight : colorDark;
}
}
movableSquares = null;
//now select the new piece
selectedPiece = clickedPiece;
movableSquares = new List <square>();
foreach (move m in legalMoves)
{
if (m.movablePiece == selectedPiece)
{
movableSquares.Add(m.targetSquare);
}
}
//update the gameboard with movable squares (in green)
_chessBoardPanels[selectedPiece.xPosition, selectedPiece.yPosition].BackColor = colorSelected;
foreach (square s in movableSquares)
{
_chessBoardPanels[s.xPosition, s.yPosition].BackColor = colorMovable;
}
}
//the player performed a move (or a take)
else if (selectedPiece != null && movableSquares.Contains(clickedSquare))
{
selectedPiece.move(clickedSquare);
endTurn();
//handler for the A.I. to make a move
if (board.mode == "Play versus A.I." && turn != playerfaction)
{
move aiMove = ai_core.getMove();
//simulate the ai clicking on the board to make the move
boardClickHandler(_chessBoardPanels[aiMove.movablePiece.xPosition, aiMove.movablePiece.yPosition], null);
boardClickHandler(_chessBoardPanels[aiMove.targetSquare.xPosition, aiMove.targetSquare.yPosition], null);
}
}
}
//move the piece to the specified square //NOTE: the square must be legal! public abstract void move(square s);
