private static Pure3D.BaseNode DeserializeNode(Stream input, Endian endian, Pure3D.BaseNode parent)
{
var start = input.Position;
var typeId = input.ReadValueU32(endian);
var headerSize = input.ReadValueU32(endian);
var totalSize = input.ReadValueU32(endian);
var current = Pure3D.NodeFactory.CreateNode(typeId);
if (current != null)
{
current.Deserialize(input);
}
else
{
var unknown = new Pure3D.Unknown(typeId);
unknown.Data = input.ReadBytes(headerSize - 12);
current = unknown;
}
current.ParentNode = parent;
if (input.Position != start + headerSize)
{
throw new FormatException();
}
var end = start + totalSize;
while (input.Position < end)
{
var child = DeserializeNode(input, endian, current);
current.Children.Add(child);
}
if (input.Position != end)
{
throw new FormatException();
}
return(current);
}
private void SerializeNode(Stream output, Pure3D.BaseNode node)
{
Stream childrenStream = new MemoryStream();
foreach (Pure3D.BaseNode child in node.Children)
{
this.SerializeNode(childrenStream, child);
}
Stream nodeStream = new MemoryStream();
node.Serialize(nodeStream);
output.WriteValueU32(node.TypeId);
output.WriteValueU32((UInt32)(12 + nodeStream.Length));
output.WriteValueU32((UInt32)(12 + nodeStream.Length + childrenStream.Length));
nodeStream.Seek(0, SeekOrigin.Begin);
output.WriteFromStream(nodeStream, nodeStream.Length);
childrenStream.Seek(0, SeekOrigin.Begin);
output.WriteFromStream(childrenStream, childrenStream.Length);
}