//
// Basic check
//
private bool[] isClear(ChessPiece piece) // Returns [rank, file], [Col, row]
{
bool colB = true, rowB = true;
int col = piece.pos.Column, row = piece.pos.Row;
for (int i = 0; i < 8; i++)
{
PictureBox boxC = (PictureBox)playBoard.GetControlFromPosition(col, i);
PictureBox boxR = (PictureBox)playBoard.GetControlFromPosition(i, row);
ChessPiece pcC = Calcs.CheckPiece(boxC);
ChessPiece pcR = Calcs.CheckPiece(boxR);
if (boxC != null && pcC.pieceRank == piece.pieceRank &&
pcC.isWhite == piece.isWhite &&
pcC != piece)
{
colB = false;
}
if (boxR != null && pcR.pieceRank == piece.pieceRank &&
pcR.isWhite == piece.isWhite &&
pcR != piece)
{
rowB = false;
}
}
return(new bool[2] {
colB, rowB
});
}
//
// Handle piece clicks
//
internal void PieceClick(object sender, MouseEventArgs e)
{
//
// Discard moves/wrong clicks
//
if (isOver)
{
return;
}
PictureBox box = (PictureBox)sender;
ChessPiece selpiece = Calcs.CheckPiece(box);
if (isMoving)
{
AttackMove(sender, e);
return;
}
else if (whiteTurn != selpiece.isWhite)
{
return;
}
isMoving = true;
//
// Get moves + Calculate
// Variables
selectedPiece = selpiece;
List <Point> moves = Calcs.CalcMovesG(selpiece, checkingPieces);
List <Point> discard = new List <Point>();
foreach (Point pt in moves)
{
int col = pt.X;
int row = pt.Y;
PictureBox cont = (PictureBox)playBoard.GetControlFromPosition(pt.X, pt.Y);
ChessPiece contp = Calcs.CheckPiece(cont);
//
// Discard unusable moves
//
if (col < 0 || col > 7 || row < 0 || row > 7)
{
discard.Add(pt);
}
else if (cont != null &&
cont.BackColor != Color.DarkGray && contp.isWhite == selpiece.isWhite)
{
discard.Add(pt);
}
else
{
AddTempBox(row, col);
}
}
if (moves.Count == discard.Count)
{
isMoving = false;
return;
}
}
public Board(Main Mn)
{
mn = Mn;
InitializeComponent();
Calcs.board = playBoard; // Set calc variables
for (int i = 0; i < 8; i++)
{
for (int j = 0; j < 8; j++)
{
PictureBox box = (PictureBox)playBoard.GetControlFromPosition(i, j);
if (box != null)
{
ChessPiece piece = new ChessPiece(box, playBoard);
Calcs.pieces.Add(piece); // Set the "pieces" var in Calcs
if (piece.isWhite)
{
Calcs.wP.Add(piece);
}
else
{
Calcs.bP.Add(piece);
}
}
}
}
Calcs.BK = Calcs.CheckPiece(bKe);
Calcs.WK = Calcs.CheckPiece(wKe);
WPr = new List <Button>()
{
WbuttonR, WbuttonK, WbuttonB, WbuttonQ
};
BPr = new List <Button>()
{
BbuttonR, BbuttonK, BbuttonB, BbuttonQ
};
}
//
// Main move function
//
internal void MovePiece(object sender, MouseEventArgs e, bool attack = false)
{
isCheck = false;
//
// Get vars + Positions
//
PictureBox box = (PictureBox)sender;
TableLayoutPanelCellPosition pos = playBoard.GetPositionFromControl(box);
TableLayoutPanelCellPosition selpos = selectedPiece.pos;
//
// Passant check before move
//
bool ep = false;
if (box.Name.Contains("DEL") &&
selectedPiece.pieceRank == Rank.PAWN &&
pos.Column != selpos.Column)
{
ep = true;
attack = true;
playBoard.Controls.Remove
(playBoard.GetControlFromPosition
(pos.Column, selpos.Row));
}
//
// Move the piece.
//
playBoard.Controls.Remove(box);
playBoard.Controls.Add(selectedPiece.box, pos.Column, pos.Row);
//
// Pawn checks
//
foreach (ChessPiece pc in Calcs.pieces)
{
if (pc.isWhite == selectedPiece.isWhite)
{
pc.PassElig = false;
}
}
if (selectedPiece.pieceRank == Rank.PAWN)
{
if (Math.Abs(selpos.Row - pos.Row) == 2)
{
selectedPiece.PassElig = true;
}
selectedPiece.canDouble = false;
if (selectedPiece.CheckPromote())
{
promPiece = selectedPiece;
Spr = selectedPiece.isWhite ? WPr : BPr;
foreach (Button b in Spr)
{
b.Visible = true;
}
notifBoard.Visible = true;
}
}
//
// Remove temp boxes
//
ClearTempBoxes();
//
// Change turn text
//
whiteTurn = !whiteTurn;
if (whiteTurn)
{
turnbox.Text = "WHITE";
}
else
{
turnbox.Text = "BLACK";
}
isMoving = false;
//
// Get check
//
List <ChessPiece> isCheckL = Calcs.CheckCheck(whiteTurn);
checkingPieces = isCheckL;
bool isCheckB = isCheckL.Count != 0;
isCheck = isCheckB;
//
// Get CM
//
bool ifMoves = Calcs.NMCheck(whiteTurn, isCheckL);
if (!ifMoves)
{
// Game is over
isOver = true;
notifBoard.Visible = true;
winText.Visible = true;
turnbox.Visible = false;
turntext.Visible = false;
replay.Visible = true;
// Find Checkmate/Stalemate
if (isCheckB)
{
winText.Text = whiteTurn ? "BLACK WINS!" : "WHITE WINS!";
}
else
{
winText.Text = "STALEMATE!";
}
}
// Update moves
string[] lines = GetMoveText(attack, selpos, selectedPiece, isCheckB, !ifMoves, ep);
List <string> boxLines = moves.Lines.ToList();
if (boxLines.Count != 0)
{
string last = boxLines[boxLines.Count - 1];
if (!last.Contains(' '))
{
last += (' ' + lines[0]);
boxLines[boxLines.Count - 1] = last;
}
else
{
boxLines = boxLines.Concat(lines).ToList();
}
moves.Lines = boxLines.ToArray();
}
else
{
moves.Lines = lines;
}
//
// Clear selected piece
//
selectedPiece = null;
}