private void TrySetClassnameString()
{
if (HashGuesser.TryGuessHashString(ClassnameHash, out var maybeClassname))
{
Classname = maybeClassname;
}
}
public XElement WriteToXml()
{
//Create object node
HashGuesser.TryGuessHashString(ClassnameHash, out string className);
var objectRoot = new XElement("ZoneObject", new XAttribute("Type", className));
var objectData = new XElement("Data");
objectRoot.Add(objectData);
//Write 56 byte data block
objectData.Add(new XAttribute("ClassnameHash", ClassnameHash));
objectData.Add(new XElement("Handle", Handle));
objectData.Add(Bmin.ToXElement("Bmin"));
objectData.Add(Bmax.ToXElement("Bmax"));
var flagsNode = new XElement("Flags", new XAttribute("Value", Flags));
flagsNode.Add(new XElement("Flag0", (Flags & (ushort)ZoneObjectFlags.Flag0) != 0));
flagsNode.Add(new XElement("Flag1", (Flags & (ushort)ZoneObjectFlags.Flag1) != 0));
flagsNode.Add(new XElement("Flag2", (Flags & (ushort)ZoneObjectFlags.Flag2) != 0));
flagsNode.Add(new XElement("Flag3", (Flags & (ushort)ZoneObjectFlags.Flag3) != 0));
flagsNode.Add(new XElement("Flag4", (Flags & (ushort)ZoneObjectFlags.Flag4) != 0));
flagsNode.Add(new XElement("Flag5", (Flags & (ushort)ZoneObjectFlags.Flag5) != 0));
flagsNode.Add(new XElement("Flag6", (Flags & (ushort)ZoneObjectFlags.Flag6) != 0));
flagsNode.Add(new XElement("Flag7", (Flags & (ushort)ZoneObjectFlags.Flag7) != 0));
flagsNode.Add(new XElement("Flag8", (Flags & (ushort)ZoneObjectFlags.Flag8) != 0));
flagsNode.Add(new XElement("Flag9", (Flags & (ushort)ZoneObjectFlags.Flag9) != 0));
flagsNode.Add(new XElement("Flag10", (Flags & (ushort)ZoneObjectFlags.Flag10) != 0));
flagsNode.Add(new XElement("Flag11", (Flags & (ushort)ZoneObjectFlags.Flag11) != 0));
flagsNode.Add(new XElement("Flag12", (Flags & (ushort)ZoneObjectFlags.Flag12) != 0));
flagsNode.Add(new XElement("Flag13", (Flags & (ushort)ZoneObjectFlags.Flag13) != 0));
flagsNode.Add(new XElement("Flag14", (Flags & (ushort)ZoneObjectFlags.Flag14) != 0));
flagsNode.Add(new XElement("Flag15", (Flags & (ushort)ZoneObjectFlags.Flag15) != 0));
objectData.Add(flagsNode);
objectData.Add(new XAttribute("BlockSize", BlockSize));
objectData.Add(new XElement("Parent", Parent));
objectData.Add(new XElement("Sibling", Sibling));
objectData.Add(new XElement("Child", Child));
objectData.Add(new XElement("Num", Num));
objectData.Add(new XAttribute("NumProps", NumProps));
objectData.Add(new XAttribute("Size", Size));
var propertiesNode = new XElement("Properties");
objectRoot.Add(propertiesNode);
//Write properties
foreach (var property in Properties)
{
propertiesNode.Add(property.WriteToXml());
}
//Return object node
return(objectRoot);
}
/// <summary>
/// Attempt to read the rfgzone_pc/layer_pc format from the stream. Fill this class with that data.
/// </summary>
/// <param name="stream">The stream to read the data from.</param>
public void ReadFromBinary(Stream stream)
{
var reader = new BinaryReader(stream);
//Read header
Signature = reader.ReadUInt32();
if (Signature != 1162760026) //Should equal ascii value for "ZONE"
{
Console.WriteLine($"Error! Invalid file signature. Expected 1162760026, detected {Signature}. Make sure the vpp/str2 containing this file was extracted properly. Exiting.");
return;
}
Version = reader.ReadUInt32();
if (Version != 36) //Only have seen and reversed version 36
{
Console.WriteLine($"Error! Unsupported format version. Expected 36, detected {Version}. Exiting.");
return;
}
NumObjects = reader.ReadUInt32();
NumHandles = reader.ReadUInt32();
DistrictHash = reader.ReadUInt32(); //Todo: Figure out how district hashes are generated
DistrictFlags = reader.ReadUInt32();
//Try to get district name from hash. Note that p_ files always have 0 for the hash. Game likely pulls from matching non p_ file
if (HashGuesser.TryGuessHashString(DistrictHash, out string districtName))
{
DistrictName = districtName;
}
//Todo: Make sure it's safe to skip this on zones with numHandles != 0
//Todo: Try deleting relational data on all zones and seeing if that causes an issue.
/*
* Relation data section. Likely a structure directly mapped to memory.
* Isn't present if districtFlags equals 1, 4, or 5 (if the 0th and 2nd bits are true)
* I've only seen layer_pc have a flag equal to 4 and rfgzone_pc either 1 or 0 (0 means they have relational_data)
* Skip by default, since in my tests so far this entire section can be zeroed out without issue.
* Can later add code to handle it if it turns out to be required.
*/
#if IgnoreRelationData
if ((DistrictFlags & 5) == 0) //Relation data section only present when this condition is met.
{
reader.BaseStream.Seek(87368, SeekOrigin.Current); //Offset: 87392
}
#else
if ((DistrictFlags & 5) == 0)
{
//Totals to 87368
var stupid_vtable_padding = reader.ReadBytes(4); //4
var free = reader.ReadBytes(2); //2
var slot = reader.ReadBytes(14560); //2 * 7280 //starts at 30
var next = reader.ReadBytes(14560); //2 * 7280 //starts at 14590
var more_stupid_padding = reader.ReadBytes(2); //2 //starts at 29150
var entry_key = reader.ReadBytes(29120); //4 * 7280 //starts at 29152 //Might be 4 * numObjects bytes of data for keys, rest is useless, can be deleted/omitted. (Same with other arrays)
var entry_data = reader.ReadBytes(29120); //4 * 7280 //starts at 58272
//Ends at 87392
}
#endif
//Read zone objects
for (int i = 0; i < NumObjects; i++)
{
var zoneObject = new ZoneObject();
zoneObject.ReadFromBinary(stream);
Objects.Add(zoneObject);
}
#if DEBUG
Console.WriteLine($"Last zone object ends at offset {reader.BaseStream.Position}");
#endif
}