// Construct the Armature object from mesh skeleton KV data. public void ConstructFromNTRO(NTROStruct skeletonData, Dictionary <int, int> remapTable) { var boneNames = skeletonData.Get <NTROArray>("m_boneName").ToArray <string>(); var boneParents = skeletonData.Get <NTROArray>("m_nParent").ToArray <short>(); var bonePositions = skeletonData.Get <NTROArray>("m_bonePosParent").ToArray <Vector3>(); var boneRotations = skeletonData.Get <NTROArray>("m_boneRotParent").ToArray <Vector4>(); // Initialise bone array Bones = new Bone[boneNames.Length]; //Add all bones to the list for (var i = 0; i < boneNames.Length; i++) { var name = boneNames[i]; var position = new OpenTK.Vector3(bonePositions[i].X, bonePositions[i].Y, bonePositions[i].Z); var rotation = new Quaternion(boneRotations[i].X, boneRotations[i].Y, boneRotations[i].Z, boneRotations[i].W); // Create bone var index = remapTable.ContainsKey(i) ? remapTable[i] : -1; var bone = new Bone(name, index, position, rotation); if (boneParents[i] != -1) { bone.SetParent(Bones[boneParents[i]]); Bones[boneParents[i]].AddChild(bone); } Bones[i] = bone; } FindRoots(); }
/// <summary> /// Construct an animation class from the animation description /// </summary> /// <param name="animDesc"></param> /// <param name="decodeKey"></param> /// <param name="decoderArray"></param> /// <param name="segmentArray"></param> private void ConstructFromDesc(NTROStruct animDesc, NTROStruct decodeKey, AnimDecoderType[] decoderArray, NTROArray segmentArray) { // Get animation properties Name = animDesc.Get <string>("m_name"); Fps = animDesc.Get <float>("fps"); // Only consider first frame block for now var pData = animDesc.Get <NTROArray>("m_pData").Get <NTROStruct>(0); var frameBlockArray = pData.Get <NTROArray>("m_frameblockArray").ToArray <NTROStruct>(); FrameCount = pData.Get <int>("m_nFrames"); Frames = new Frame[FrameCount]; // Figure out each frame for (var frame = 0; frame < FrameCount; frame++) { // Create new frame object Frames[frame] = new Frame(); // Read all frame blocks foreach (var frameBlock in frameBlockArray) { var startFrame = frameBlock.Get <int>("m_nStartFrame"); var endFrame = frameBlock.Get <int>("m_nEndFrame"); // Only consider blocks that actual contain info for this frame if (frame >= startFrame && frame <= endFrame) { var segmentIndexArray = frameBlock.Get <NTROArray>("m_segmentIndexArray").ToArray <int>(); foreach (var segmentIndex in segmentIndexArray) { var segment = segmentArray.Get <NTROStruct>(segmentIndex); ReadSegment(frame - startFrame, segment, decodeKey, decoderArray, ref Frames[frame]); } } } } }
/// <summary> /// Read segment /// </summary> /// <param name="frame"></param> /// <param name="segment"></param> /// <param name="decodeKey"></param> /// <param name="decoderArray"></param> /// <param name="outFrame"></param> private void ReadSegment(int frame, NTROStruct segment, NTROStruct decodeKey, AnimDecoderType[] decoderArray, ref Frame outFrame) { // Clamp the frame number to be between 0 and the maximum frame frame = frame < 0 ? 0 : frame; frame = frame >= FrameCount ? FrameCount - 1 : frame; var localChannel = segment.Get <int>("m_nLocalChannel"); var dataChannel = decodeKey.Get <NTROArray>("m_dataChannelArray").Get <NTROStruct>(localChannel); var boneNames = dataChannel.Get <NTROArray>("m_szElementNameArray").ToArray <string>(); var channelAttribute = dataChannel.Get <string>("m_szVariableName"); // Read container var container = segment.Get <NTROArray>("m_container").ToArray <byte>(); using (var containerReader = new BinaryReader(new MemoryStream(container))) { var elementIndexArray = dataChannel.Get <NTROArray>("m_nElementIndexArray").ToArray <int>(); var elementBones = new int[decodeKey.Get <int>("m_nChannelElements")]; for (var i = 0; i < elementIndexArray.Length; i++) { elementBones[elementIndexArray[i]] = i; } // Read header var decoder = decoderArray[containerReader.ReadInt16()]; var cardinality = containerReader.ReadInt16(); var numBones = containerReader.ReadInt16(); var totalLength = containerReader.ReadInt16(); // Read bone list var elements = new List <int>(); for (var i = 0; i < numBones; i++) { elements.Add(containerReader.ReadInt16()); } // Skip data to find the data for the current frame. // Structure is just | Bone 0 - Frame 0 | Bone 1 - Frame 0 | Bone 0 - Frame 1 | Bone 1 - Frame 1| if (containerReader.BaseStream.Position + (decoder.Size() * frame * numBones) < containerReader.BaseStream.Length) { containerReader.BaseStream.Position += decoder.Size() * frame * numBones; } // Read animation data for all bones for (var element = 0; element < numBones; element++) { // Get the bone we are reading for var bone = elementBones[elements[element]]; // Look at the decoder to see what to read switch (decoder) { case AnimDecoderType.CCompressedStaticFullVector3: case AnimDecoderType.CCompressedFullVector3: case AnimDecoderType.CCompressedDeltaVector3: outFrame.SetAttribute(boneNames[bone], channelAttribute, new Vector3( containerReader.ReadSingle(), containerReader.ReadSingle(), containerReader.ReadSingle())); break; case AnimDecoderType.CCompressedAnimVector3: case AnimDecoderType.CCompressedStaticVector3: outFrame.SetAttribute(boneNames[bone], channelAttribute, new Vector3( ReadHalfFloat(containerReader), ReadHalfFloat(containerReader), ReadHalfFloat(containerReader))); break; case AnimDecoderType.CCompressedAnimQuaternion: outFrame.SetAttribute(boneNames[bone], channelAttribute, ReadQuaternion(containerReader)); break; #if DEBUG default: if (channelAttribute != "data") { Console.WriteLine($"Unhandled animation bone decoder type '{decoder}'"); } break; #endif } } } }