public IEnumerable <TES4Record> Load(TES4FileLoadScheme scheme)
{
Console.Write("Processing " + nameof(TES4File) + " Data...");
Stopwatch stopwatch = Stopwatch.StartNew();
using (FileStream contents = GetFile())
{
this.FetchTES4(contents);
while (true)
{
byte[] headerBytes = new byte[TES4Grup.GRUP_HEADER_SIZE];
int read = contents.Read(headerBytes);
if (read == 0)
{
break;
}
string headerString = ISO_8859_1.Value.GetString(headerBytes);
if (headerString.Substring(0, 4) != "GRUP")
{
throw new InvalidESFileException("Invalid GRUP magic, found " + headerString.Substring(0, 4));
}
contents.Seek(-TES4Grup.GRUP_HEADER_SIZE, SeekOrigin.Current);
int grupSize = PHPFunction.UnpackV(headerBytes.Skip(4).Take(4).ToArray());
TES4RecordType grupType = TES4RecordType.First(headerString.Substring(8, 4));
if (scheme.ShouldLoad(grupType))
{
TES4GrupLoadScheme?rules = scheme.GetRulesFor(grupType);
if (rules == null)
{
throw new InvalidOperationException(nameof(rules) + " was null for " + nameof(grupType) + " " + grupType.Name + ".");
}
TES4Grup grup = new TES4Grup();
foreach (var loadedRecord in grup.Load(contents, this, rules, true))
{
yield return(loadedRecord);
}
if (grup.Type == null)
{
throw new InvalidOperationException(nameof(grup.Type) + " was null.");
}
this.grups.Add(grup.Type, grup);
}
else
{
contents.Seek(grupSize, SeekOrigin.Current);
}
}
}
stopwatch.Stop();
Console.WriteLine("\rProcessing " + nameof(TES4File) + " Complete (" + stopwatch.ElapsedMilliseconds + " ms)");
}
public List <TES4Grup> GetGrup(TES4RecordType type)
{
List <TES4Grup> grups = new List <TES4Grup>();
foreach (var file in this.files)
{
TES4Grup grup = file.GetGrup(type);
if (grup != null)
{
grups.Add(grup);
}
}
return(grups);
}
/*
* @throws InvalidESFileException
*/
public IEnumerable <ITES4Record> Load(FileStream fileContents, TES4File file, TES4GrupLoadScheme scheme, bool isTopLevelGrup)
{
long startPosition = fileContents.Position;
byte[] headerBytes = fileContents.Read(GRUP_HEADER_SIZE);
string headerString = TES4File.ISO_8859_1.Value.GetString(headerBytes);
if (headerString.Substring(0, 4) != "GRUP")
{
throw new InvalidESFileException("Invalid GRUP magic, found " + headerString.Substring(0, 4));
}
this.Size = PHPFunction.UnpackV(headerBytes.Skip(4).Take(4).ToArray());
if (isTopLevelGrup)
{
this.Type = TES4RecordType.First(headerString.Substring(8, 4));
}
long end = startPosition + this.Size;
while (fileContents.Position < end)
{
//Ineffective lookahead, but oh well
byte[] nextEntryTypeBytes = new byte[4];
int bytesRead = fileContents.Read(nextEntryTypeBytes);
if (bytesRead == 0)
{
break;
}
fileContents.Seek(-4, SeekOrigin.Current);
string nextEntryType = TES4File.ISO_8859_1.Value.GetString(nextEntryTypeBytes);
switch (nextEntryType)
{
case "GRUP":
{
TES4Grup nestedGrup = new TES4Grup();
foreach (var subrecord in nestedGrup.Load(fileContents, file, scheme, false))
{
yield return(subrecord);
}
break;
}
default:
{
byte[] recordHeaderBytes = fileContents.Read(TES4LoadedRecord.RECORD_HEADER_SIZE);
string recordTypeString = TES4File.ISO_8859_1.Value.GetString(recordHeaderBytes.Take(4).ToArray());
TES4RecordType recordType = TES4RecordType.First(recordTypeString);
int recordSize = PHPFunction.UnpackV(recordHeaderBytes.Skip(4).Take(4).ToArray());
int recordFlags = PHPFunction.UnpackV(recordHeaderBytes.Skip(8).Take(4).ToArray());
int recordFormid = PHPFunction.UnpackV(recordHeaderBytes.Skip(12).Take(4).ToArray());
if (scheme.ShouldLoad(recordType))
{
TES4LoadedRecord record = new TES4LoadedRecord(file, recordType, recordFormid, recordSize, recordFlags);
record.Load(fileContents, scheme.GetRulesFor(recordType));
this.records.Add(record);
yield return(record);
}
else
{
fileContents.Seek(recordSize, SeekOrigin.Current);
}
break;
}
}
}
}
