public static DTBFile FromFile(string path, DTBEncoding encoding)
{
using (FileStream fs = File.OpenRead(path))
{
using (AwesomeReader ar = new AwesomeReader(fs))
{
return(FromStream(ar, encoding));
}
}
}
public static DTBFile FromStream(AwesomeReader ar, DTBEncoding encoding)
{
byte firstByte = ar.ReadByte();
if (firstByte != 1)
{
throw new Exception("Invalid first DTB byte. Expected 1.");
}
short itemCount;
int version;
DTBFile dtb = new DTBFile();
dtb.Encoding = encoding;
if (encoding == DTBEncoding.FME)
{
ar.ReadInt32(); // Always 0
}
if (encoding != DTBEncoding.RBVR)
{
itemCount = ar.ReadInt16();
version = ar.ReadInt32(); // Reads version. Should be either 0 or 1
}
else
{
version = ar.ReadInt32(); // Reads version. Should be either 0 or 1
itemCount = ar.ReadInt16();
ar.ReadInt16(); // Unknown, always 1?
}
if (version == 0)
{
dtb.Embedded = true;
}
else if (version == 1)
{
dtb.Embedded = false; // Much more common
}
//else throw new Exception("Invalid DTB version. Expected 0 or 1.");
for (int i = 0; i < itemCount; i++)
{
ParseItem(ar, dtb.Items, encoding);
}
return(dtb);
}
private static void ParseItem(AwesomeReader ar, ParentItem parent, DTBEncoding encoding)
{
int itemID = ar.ReadInt32();
DTBItem item;
switch (itemID)
{
// Integer
case 0x00:
item = new IntegerItem(ar.ReadInt32());
break;
// Float
case 0x01:
item = new FloatItem(ar.ReadSingle());
break;
// String
case 0x02: // Variable
case 0x04: // MiloEmbedded
case 0x05: // Keyword
case 0x06: // KDataUnhandled
case 0x07: // IfNDef
case 0x08: // Else
case 0x09: // EndIf
case 0x12: // Default
case 0x20: // Define
case 0x21: // Include
case 0x22: // Merge
case 0x23: // IfNDef
case 0x24: // Mysterious24
item = new StringItem((StringType)itemID, ar.ReadString());
break;
case 0x10: // Default
case 0x11: // Script
case 0x13: // Property
item = new ParentItem((ParentType)itemID);
short itemCount;
if (encoding == DTBEncoding.Classic)
{
itemCount = ar.ReadInt16();
ar.ReadInt32(); // Reads line number
}
else // Fantasia / RBVR
{
ar.ReadInt32(); // Unknown (RBVR - Always 1)
itemCount = (encoding == DTBEncoding.RBVR) ? ar.ReadInt16() : (short)ar.ReadInt32();
ar.ReadInt16();
}
for (int i = 0; i < itemCount; i++)
{
// Recursion: Like a boss
ParseItem(ar, item as ParentItem, encoding);
}
break;
default:
throw new Exception(string.Format("Unknown chunk: {0} at {1}", itemID, ar.BaseStream.Position));
}
parent.Add(item);
}
