bool isOpenThree(Point p, direction dir, PieceType color)
{
int left, right, mid;
int leftC, rightC;
BoardOfFIR newBd = new BoardOfFIR();
Point tP;
mid = countLine(p, dir, color, out left, out right) + 1;
tP = p;
if ((fixPosition(ref tP, dir, false, left + 1) && (int)board[tP.X, tP.Y] >= 2))
{
leftC = countLine(tP, dir, color, false);
if ((mid + leftC) == 3)
{
newBd.boardCopy(this);
newBd.board[p.X, p.Y] = color;
if (newBd.isOpenFour(tP, dir, color) && (!newBd.isBanned(tP) || color != PieceType.Black))
{
return(true);
}
}
}
tP = p;
if ((fixPosition(ref tP, dir, true, right + 1) && (int)board[tP.X, tP.Y] >= 2))
{
rightC = countLine(tP, dir, color, true);
if ((mid + rightC) == 3)
{
newBd.boardCopy(this);
newBd.board[p.X, p.Y] = color;
if (newBd.isOpenFour(tP, dir, color) && (!newBd.isBanned(tP) || color != PieceType.Black))
{
return(true);
}
}
}
return(false);
}
