/**
* Handle castling
**/
protected function castle(King $king, Square $to)
{
$isKingSide = $this->isCastleKingSide($king, $to);
$y = $king->getY();
if ($isKingSide) {
$rook = $this->analyser->getCastleRookKingSide($king->getPlayer());
$newRookSquare = $this->board->getSquareByPos(6, $y);
$newKingSquare = $this->board->getSquareByPos(7, $y);
} else {
$rook = $this->analyser->getCastleRookQueenSide($king->getPlayer());
$newRookSquare = $this->board->getSquareByPos(4, $y);
$newKingSquare = $this->board->getSquareByPos(3, $y);
}
if (!$rook) {
throw new \LogicException(sprintf('No rook for castle on %s side, king %s to %s', $isKingSide ? 'King' : 'Queen', $king->getSquareKey(), $to->getKey()));
}
$kingSquare = $king->getSquare();
$rookSquare = $rook->getSquare();
$this->board->castle($king, $rook, $newKingSquare->getX(), $newRookSquare->getX());
$king->setFirstMove($this->game->getTurns());
$rook->setFirstMove($this->game->getTurns());
$this->stack->addEvent(array('type' => 'castling', 'king' => array($kingSquare->getKey(), $newKingSquare->getKey()), 'rook' => array($rookSquare->getKey(), $newRookSquare->getKey()), 'color' => $king->getColor()));
}