/// <summary>
/// Read a transformation matrix and attach to the current frame
/// </summary>
/// <param name="node"></param>
/// <param name="depth"></param>
/// <param name="thisFrame"></param>
private void ReadTransformationMatrix(XFileData node, int depth, SimFrame thisFrame)
{
try
{
Debug.WriteLine(Depth(depth) + "Creating Matrix for "+thisFrame.Name);
GraphicsStream stream = node.Lock(); // access the data stream
thisFrame.TransformationMatrix = MatrixFromXFile(stream); // read in the matrix
node.Unlock();
}
catch (Exception e)
{
Debug.WriteLine("Error reading transformation matrix: "+e.ToString());
throw;
}
}
/// <summary>
/// Read a mesh and create a Cytoplasm object from it, then attach this to the current frame
/// </summary>
/// <param name="node"></param>
/// <param name="depth"></param>
/// <param name="thisFrame"></param>
private void ReadMesh(XFileData node, int depth, SimFrame thisFrame)
{
Debug.WriteLine(Depth(depth) + "Creating Mesh "+node.Name+" for "+thisFrame.Name);
Mesh mesh = null;
ExtendedMaterial[] materials = null;
GraphicsStream adjacency = null;
EffectInstance[] effects = null;
try
{
mesh = Mesh.FromX(node,MeshFlags.Managed,Engine.Device,out adjacency, out materials, out effects);
Debug.WriteLine(Depth(depth) + "Mesh "+node.Name+" has "+mesh.NumberVertices+" verts and "+materials.Length+" materials");
}
catch (Direct3DXException e)
{
Debug.WriteLine("Error reading mesh: "+e.ToString());
throw;
}
// Create a Cytoplasm (meshcontainer) object from mesh, materials, etc.
// Give it the right name (node.Name)
// Link it into the tree of Cytoplasm objects
// Link it to this mesh
// TODO: thisFrame.MeshContainer = CreateCytoplasm( ---stuff---);
MeshData md = new MeshData(); // Cytoplasm currently expects a MeshData
md.Mesh = mesh; // rather than a simple mesh
thisFrame.MeshContainer = new Cytoplasm(node.Name,md,materials,effects,adjacency,null);
}
private void ReadAnimationSet(XFileData node, int depth, SimFrame thisFrame)
{
Debug.WriteLine(Depth(depth) + "AnimationSet " + node.Name);
}
/// <summary>
/// Create a new frame from this node
/// </summary>
/// <param name="node">the XFileData node</param>
/// <param name="depth">depth in hierarchy</param>
/// <param name="thisFrame">the previous / new current frame</param>
private void ReadFrame(XFileData node, int depth, ref SimFrame thisFrame)
{
SimFrame newFrame = new SimFrame(node.Name); // Create a new frame
if (thisFrame==null) // if there's no current frame
{ // the new frame is the root
Debug.WriteLine(Depth(depth) + "Creating frame "+newFrame.Name+" as root");
thisFrame = newFrame;
rootFrame = thisFrame;
}
else if (thisFrame.FirstChild==null) // or, if we're in a new level
{
Debug.WriteLine(Depth(depth) + "Creating frame "+newFrame.Name+" as child of "+thisFrame.Name);
thisFrame.FirstChild = newFrame; // attach as first child of parent
thisFrame = newFrame; // and move down a generation
}
else // else we're a sibling
{
SimFrame bigSister = thisFrame.FirstChild;
while (bigSister.Sibling!=null) // so scan to the end of this row
bigSister = bigSister.Sibling;
Debug.WriteLine(Depth(depth) + "Creating frame "+newFrame.Name+" as sibling of "+bigSister.Name);
bigSister.Sibling = newFrame; // attach as a sibling
thisFrame = newFrame; // and start work on the new one
}
}
/// <summary>
/// Recursively create frames and their contents from an XFileData object
/// </summary>
/// <param name="node"></param>
/// <param name="depth"></param>
/// <param name="parentFrame"></param>
/// <param name="thisFrame"></param>
private void LoadDataObject(XFileData node, int depth, SimFrame parentFrame, SimFrame thisFrame)
{
// --------- handle the instance nodes (references are handled later) ------------
if (node.IsReference==false)
{
// **** Frame
if (node.Type==XFileGuid.Frame)
{
ReadFrame(node, depth, ref thisFrame);
}
// **** FrameTransformationMatrix
else if (node.Type==XFileGuid.FrameTransformMatrix)
{
ReadTransformationMatrix(node, depth, thisFrame);
}
// **** Mesh
else if (node.Type==XFileGuid.Mesh)
{
ReadMesh(node, depth, thisFrame);
}
// Ignore mesh subset members (materials, normals, etc.) - they're already handled by ReadMesh()
// **** Animation set
else if (node.Type==XFileGuid.AnimationSet)
{
ReadAnimationSet(node, depth, thisFrame);
}
// **** Animation
else if (node.Type==XFileGuid.Animation)
{
}
// **** AnimationKey
else if (node.Type==XFileGuid.AnimationKey)
{
}
// **** AnimationOptions
else if (node.Type==XFileGuid.AnimationOptions)
{
}
// --------- Recurse through this node's children ----------
// Note: we mustn't touch the children of a REFERENCE node or we'll create a duplicate
// set of frames, etc. So only run this loop if we've just handled an INSTANCE node
for (int i=0; i<node.NumberChildren; i++)
{
using (XFileData child = node.GetChild(i))
{
LoadDataObject(child, depth++, parentFrame, thisFrame);
}
}
}
// --------- deal with REFERENCES to existing instances (e.g inside animation nodes) ----------
else
{
// **** Frame reference
if (node.Type==XFileGuid.Frame)
{
SimFrame refFrame = null; /////rootFrame.Find(node.Name);
}
}
}