internal bool CheckKingsSafety(Piece pieceMoving, Position newPos, Chessboard board)
{
bool mat = false;
Side defSide = pieceMoving.Side;
Chessboard tempBoard = Chessboard.DeepClone(board);
//Piece pieceMirrored = DeepClone(pieceMoving);
King defKing = tempBoard.FindKing(defSide);
int Dx = pieceMoving.CurrentPosition.X - defKing.CurrentPosition.X;
int Dy = pieceMoving.CurrentPosition.Y - defKing.CurrentPosition.Y;
// Perform mirror operations when needed
if (Dx < 0)
{
tempBoard.State = HorizontalMirror(tempBoard.State);
}
if (Dy < 0)
{
tempBoard.State = VerticalMirror(tempBoard.State);
}
// Find king again if board was mirrored
defKing = tempBoard.FindKing(defSide);
// Store possible enemy piece that might has mat.
Piece possibleMatPiece = null;
if (Dx == 0)
{
for (int iy = defKing.CurrentPosition.Y + 1; iy < 8; iy++)
{
if (tempBoard.State[defKing.CurrentPosition.X, iy]?.Side != defSide)
{
possibleMatPiece = tempBoard.State[defKing.CurrentPosition.X, iy];
}
}
}
else if (Dy == 0)
{
for (int ix = defKing.CurrentPosition.X + 1; ix < 8; ix++)
{
if (tempBoard.State[ix, defKing.CurrentPosition.Y]?.Side != defSide)
{
possibleMatPiece = tempBoard.State[ix, defKing.CurrentPosition.Y];
}
}
}
else
{
int ix = defKing.CurrentPosition.X + 1;
int iy = defKing.CurrentPosition.Y + 1;
for (int i = defKing.CurrentPosition.X; i < 8; i++)
{
if (tempBoard.State[ix, iy] == null)
{
ix++;
iy++;
continue;
}
if (tempBoard.State[ix, iy].Side != defKing.Side)
{
possibleMatPiece = tempBoard.State[ix, iy];
}
ix++;
iy++;
}
}
// Try to kill defendant King.
return(false);
}
