public Node(Stream mdlStream, Stream mdxStream, Type nodeType, AuroraModel model)
{
byte[] buffer = new byte[78];
mdlStream.Read(buffer, 0, 78);
this.nodeType = nodeType;
model.nodes.Add(this);
superIndex = BitConverter.ToUInt16(buffer, 0);
ushort nameIndex = BitConverter.ToUInt16(buffer, 2);
name = (nameIndex < model.nodeNames.Length) ? model.nodeNames[nameIndex] : "";
//get the node's position, flip the y and z co-ordinates to align with Unity axes
position = new Vector3(BitConverter.ToSingle(buffer, 14), BitConverter.ToSingle(buffer, 22), BitConverter.ToSingle(buffer, 18));
//get the node's orientation, and invert align with Unity axes
Quaternion rot = new Quaternion(BitConverter.ToSingle(buffer, 30), BitConverter.ToSingle(buffer, 34), BitConverter.ToSingle(buffer, 38), BitConverter.ToSingle(buffer, 26));
Quaternion inv = new Quaternion(-rot.x, -rot.z, -rot.y, rot.w);
rotation = inv;
uint childArrayOffset = BitConverter.ToUInt32(buffer, 42), childArrayCount = BitConverter.ToUInt32(buffer, 46), childArrayCapacity = BitConverter.ToUInt32(buffer, 50);
uint curveKeyArrayOffset = BitConverter.ToUInt32(buffer, 54), curveKeyArrayCount = BitConverter.ToUInt32(buffer, 58), curveKeyArrayCapacity = BitConverter.ToUInt32(buffer, 62);
uint curveDataArrayOffset = BitConverter.ToUInt32(buffer, 66), curveDataArrayCount = BitConverter.ToUInt32(buffer, 70), curveDataArrayCapacity = BitConverter.ToUInt32(buffer, 74);
long pos = mdlStream.Position;
//an array of offsets into the node list for each child of this node
uint[] childArray = new uint[childArrayCount];
mdlStream.Position = model.modelDataOffset + childArrayOffset;
buffer = new byte[4 * childArrayCount];
mdlStream.Read(buffer, 0, 4 * (int)childArrayCount);
for (int i = 0; i < childArrayCount; i++)
{
childArray[i] = BitConverter.ToUInt32(buffer, 4 * i);
}
//curve data stores animated properties on the node
curves = model.ReadAnimationCurves(mdlStream, curveKeyArrayCount, curveKeyArrayOffset, curveDataArrayCount, curveDataArrayOffset, this);
children = new Node[childArrayCount];
for (int i = 0; i < childArrayCount; i++)
{
mdlStream.Position = model.modelDataOffset + childArray[i];
children[i] = model.CreateNode(mdlStream, mdxStream, this);
}
mdlStream.Position = pos;
}
