static bool _player_near_water()
{
    for(adjacent_iterator ai(you.pos()); ai; ++ai)
        if (feat_is_water(grd(*ai)))
            return true;
    return false;
}

    // Krakens never retreat when food (the player) is in range.
    if (type == MONS_KRAKEN)
        if (_player_near_water())
            return (false);