private FileItem ConvertAfsToGeneral(AfsFileItem item, string fileName)
{
FileItem FileItem = new FileItem(this.container);
FileItem.FileName = fileName;
FileItem.FileOffset = item.startOffset;
FileItem.FileSize = item.length;
return(FileItem);
}
private AfsFileItem ConvertGeneralToAfs(FileItem item, uint fileId)
{
AfsFileItem FileItem = new AfsFileItem();
FileItem.fileId = fileId;
FileItem.startOffset = (uint)(item.FileOffset - this.dataOffset);
FileItem.length = item.FileSize;
return(FileItem);
}
/// <summary>
/// Parse the file table.
/// </summary>
/// <returns>Number of files found.</returns>
public override int ParseFileTable()
{
long offset = 8;
uint fid = 0;
this.fileTable = new List <FileItem>();
string fileNameBase;
{ // Get file name base
int fileNameStart = this.container.Name.LastIndexOf('\\') + 1;
int fileNameEnd = this.container.Name.LastIndexOf('.');
if (fileNameEnd == -1)
{
fileNameEnd = this.container.Name.Length;
}
fileNameBase = this.container.Name.Substring(fileNameStart, fileNameEnd - fileNameStart);
}
while (true)
{
AfsFileItem item = new AfsFileItem();
item.fileId = fid;
item.startOffset = StreamUtility.ReadUIntFromStream(this.container, offset, false);
offset += 4;
item.length = StreamUtility.ReadUIntFromStream(this.container, offset, false);
offset += 4;
if (item.isValid())
{
FileItem fileItem = ConvertAfsToGeneral(item, fileNameBase + "-" + Convert.ToSingle(item.fileId));
uint fileIdentifier = StreamUtility.ReadUIntFromStream(this.container, fileItem.FileOffset);
string fileExt = StreamUtility.GetFileExtension(fileIdentifier);
fileItem.FileName += "." + fileExt;
fileTable.Add(fileItem);
}
else
{
break;
}
fid++;
}
if (fileTable.Count == this.numFiles + 1)
{
// The last one is the file property table.
FileItem fileItem = fileTable[fileTable.Count - 1];
offset = fileItem.FileOffset;
// Retrieve file names
for (int i = 0; i < this.numFiles; i++)
{
fileTable[i].FileName = StreamUtility.ReadStringFromStream(this.container, offset, -1);
offset += 0x30;
}
// Remove the file property table
fileTable.RemoveAt(fileTable.Count - 1);
}
if (fileTable.Count != this.numFiles)
{
throw new FormatException(this.container.Name + ": The real number of files doesn't match the header value!" + System.Environment.NewLine +
"The header indicated: " + Convert.ToString(this.numFiles) + System.Environment.NewLine +
"The real number of files: " + Convert.ToString(fileTable.Count));
}
return(fileTable.Count);
}
