/// <summary>
/// Constructor which builds a Bone object from a pointer to an aiFace structure. As a user, you should not call this by hand.
/// <remarks>This will copy the data inside the structure into managed memory. It *DOES NOT* free the unmanaged memory.</remarks>
/// </summary>
/// <param name="aiBone*">A pointer to the bone structure in the low level unmanaged wrapper.</param>
internal unsafe Bone(IntPtr p_aiBone)
{
// Unmarshal our structure into (what will be for us, some temporary) managed memory. This is naturally, automatically released when we exit the function.
UnmanagedAssimp.aiBone tBone = (UnmanagedAssimp.aiBone)Marshal.PtrToStructure(p_aiBone, typeof(UnmanagedAssimp.aiBone));
// Copy over the nice, simple value types into managed memory. Value types copy the entire structure rather than just the pointer to it.
this.mOffsetMatrix = tBone.mOffsetMatrix;
// Copy the properties over into our class as marshalled managed memory.
// Note that with strings, prepending an empty string "" forces a copy.
this.sName = "" + tBone.mName.data;
// Marshal the vertex weight array.
this.tWeights = UnmanagedAssimp.MarshalArray<aiVertexWeight>(new IntPtr(tBone.mWeights), tBone.mNumWeights);
}
/// <summary>
/// Constructor which builds a Node object from a pointer to an aiNode structure. As a user, you should not call this by hand.
/// <remarks>This will copy the data inside the structure into managed memory. It *DOES NOT* free the unmanaged memory.</remarks>
/// </summary>
/// <param name="aiNode*">A pointer to the face structure in the low level unmanaged wrapper.</param>
internal unsafe Node(IntPtr p_aiNode, Node pParent)
{
// Unmarshal our structure into (what will be for us, some temporary) managed memory. This is naturally, automatically released when we exit the function.
UnmanagedAssimp.aiNode tNode = (UnmanagedAssimp.aiNode)Marshal.PtrToStructure(p_aiNode, typeof(UnmanagedAssimp.aiNode));
// Copy over the nice, simple value types into managed memory. Value types copy the entire structure rather than just the pointer to it.
this.mTransformation = tNode.mTransformation;
// Copy the properties over into our class as marshalled managed memory.
// Note that with strings, prepending an empty string "" forces a copy.
this.sName = "" + tNode.mName.data;
// Check the parent is not null.
//this.mParent = null;
//if (tNode.mParent != IntPtr.Zero)
// this.mParent = new Node(tNode.mParent);
// To link the heirarchy we use a .NET reference to the parent. This assumes we create in hierarchy order.
this.mParent = pParent;
// If we have children.
if (tNode.mNumChildren > 0)
{
// Copy over the array of node animations into managed memory belonging to this class instance.
int iIntPtrSize = sizeof(IntPtr);
tChildren = new Node[tNode.mNumChildren];
IntPtr pChildPtr = tNode.mChildren;
for (int iElement = 0; iElement < tNode.mNumChildren; ++iElement)
{
// Copy the element at this index and then increment the channel pointer (which should be sizeof(IntPtr) away.
tChildren[iElement] = new Node(Marshal.ReadIntPtr(pChildPtr), this);
pChildPtr = new IntPtr(pChildPtr.ToInt64() + iIntPtrSize);
}
}
// Marshal the array of unsigned integers for each mesh.
tMeshes = UnmanagedAssimp.MarshalUintArray(tNode.mMeshes, tNode.mNumMeshes);
}