/*!
* Binds this geometry to a list of bones. Creates and attatches a
* NiSkinInstance and NiSkinData class. The bones must have a common
* ancestor in the scenegraph. This becomes the skeleton root.
*/
public void BindSkinWith(IList <NiNode> bone_nodes, Action <NiObject> skinInstConstructor)
{
if (skinInstConstructor == null)
{
skinInstConstructor = NiSkinInstance.Create;
}
//Ensure skin is not aleady bound
if (skinInstance != null)
{
throw new Exception("You have attempted to re-bind a skin that is already bound. Unbind it first.");
}
//Ensure that some bones are given
if (bone_nodes.Count == 0)
{
throw new Exception("You must specify at least one bone node.");
}
//--Find a suitable skeleton root--//
//The skeleton root will be the common ancestor of all bones which influence this skin,
//and the skin object itself.
var objects = new List <NiAVObject>();
objects.Add(this);
for (var i = 0; i < bone_nodes.Count; ++i)
{
objects.Add(bone_nodes[i]);
}
var skeleton_root = Nif.FindCommonAncestor(objects);
if (skeleton_root == null)
{
throw new Exception("Failed to find suitable skeleton root.");
}
//Create a skin instance using the bone and root data
skinInstance = skinInstConstructor() as NiSkinInstance;
if (skinInstance == null)
{
throw new Exception("Failed to construct NiSkinInstance");
}
skinInstance.BindSkin(skeleton_root, bone_nodes);
//Create a NiSkinData object based on this mesh
skinInstance.SkinData = new NiSkinData(this);
}
