private Beatmap(string setId, IBeatmapMirrorSiteClient mirrorSite)
{
_response = HttpWebHelper.GetResponse(mirrorSite.UrlDownload + setId);
_setId = setId;
_fileName = mirrorSite.GetFileName(_response);
_fileLength = _response.ContentLength;
_name = GetBeatmapName(_fileName);
_downloaded = 0;
_downloadStream = _response.GetResponseStream();
}
