/**
* @param MoveInterface $move
* @param GameInterface $game
*
* @throws InvalidMoveException
*/
private static function validate(MoveInterface $move, GameInterface $game)
{
if ($game->hasFinished()) {
throw new InvalidMoveException('Game has already finished');
}
if (null === ($piece = $move->getPiece())) {
if (null === ($piece = $game->getBoard()->getSquare($move->getFrom())->getPiece())) {
var_export($game->getBoard()->getSquaresAsString());
throw new InvalidMoveException(sprintf('There must be a piece to move on that position: %s', $move->getFromLabel()));
}
}
if ($game->getCurrentColor() !== $piece->getColor()) {
throw new InvalidMoveException(sprintf('You can only move your own pieces: the %s on %s belongs to %s', $piece->getTypeLabel(), $move->getFromLabel(), $game->getOpposingPlayer()->getColor()));
}
}