public static SctItem CreateFromStream(DataStream dsr, uint size)
{
// All we care about right now is if it's a dialog item or not.
// Skip the preamble
long startPosition = dsr.StreamPosition;
byte[] rawData = dsr.ReadBytes((int)size);
SctItem item;
// Dialog items start with 5C 68 28
if (size < ItemPreambleSize + 3 ||
rawData[ItemPreambleSize + 0] != 0x5C ||
rawData[ItemPreambleSize + 1] != 0x68 ||
rawData[ItemPreambleSize + 2] != 0x28)
{
item = new SctItem(rawData);
}
else
{
item = new DialogItem(rawData);
}
dsr.StreamPosition = startPosition;
return(item);
}
private void ReadDataBlocks(DataStream ds)
{
for (int i = 0; i < ItemHeaders.Count; i++)
{
ds.StreamPosition = ItemHeaders[i].DataOffset;
var item = SctItem.CreateFromStream(ds, ItemHeaders[i].DataSize);
bool isLastItem = (i == ItemHeaders.Count - 1);
uint start = ItemHeaders[i].DataOffset;
DataStream dataStream = new DataStream(new MemoryStream(item.Data), Endianness.BigEndian);
for (long offset = 0; offset < ItemHeaders[i].DataSize; offset += 4)
{
long relOffset = dataStream.ReadUint();
long absOffset = relOffset + start + offset;
long filenameSectionOffset = ItemHeaders[ItemHeaders.Count - 1].DataOffset;
// Check if the offset points to one of the filenames at the end of the file.
if (!isLastItem && absOffset >= filenameSectionOffset && absOffset < ds.Length)
{
long oldPos = ds.StreamPosition;
ds.Stream.Seek(absOffset, SeekOrigin.Begin);
int nameLength = 0;
while (true)
{
byte b = ds.ReadByte();
char c = (char)b;
if (char.IsLetterOrDigit(c) || c == '.' || c == '_')
{
nameLength++;
}
else if (b == 0 && nameLength > 0)
{
ItemHeaders[i].FileNamePointers.Add(offset);
break;
}
else
{
break;
}
}
ds.Stream.Seek(oldPos, SeekOrigin.Begin);
}
if (absOffset <= int.MaxValue)
{
for (int j = 0; j < ItemHeaders.Count; j++)
{
if (i != j && ItemHeaders[j].DataOffset == absOffset)
{
if (!PointerRecords.ContainsKey(i))
{
PointerRecords.Add(i, new List <PointerRecord>());
}
var pointersForItem = PointerRecords[i];
pointersForItem.Add(new PointerRecord {
TargetIndex = j, Offset = offset
});
}
}
}
}
Items.Add(item);
}
}
