public static BigArchive FromBytes(byte[] data, Action <string> writeLog = null)
{
if (writeLog == null)
{
writeLog = NullLogger.Write;
}
BigArchive bf = new BigArchive();
//load global header
bf.GlobalHeader = GlobalHeader.FromBytes(data);
writeLog("header loaded...");
//load the index
FileIndex fi = FileIndex.FromBytes(data, bf.GlobalHeader);
writeLog("index loaded...");
//there's some junk after the index: "L225" or "L231" plus 4 or 5 bytes of padding
//Music.big also has some weird junk in between the end of the index and the mystery junk, but I'm not sure if it's intended or not
//we can probably ignore that when loading but not when saving
//we will probably just try "L231" plus four bytes at least initially
//load files from index
writeLog("\nloading files");
foreach (var indexEntry in fi.Entries)
{
byte[] fileData = data[(int)indexEntry.DataPosition..(int)(indexEntry.DataPosition + indexEntry.DataSize)];