/// <summary>
/// Transforms the verticies making up this mesh into
/// the designated bone positions.
/// </summary>
/// <param name="bone">The bone to start with. Should always be the ROOT bone.</param>
public void TransformVertices(Bone bone)
{
var binding = this.BoneBindings.FirstOrDefault(x => x.BoneName == bone.Name);
if (binding != null)
{
for (var i = 0; i < binding.RealVertexCount; i++)
{
var vertexIndex = binding.FirstRealVertex + i;
var blendVertexIndex = vertexIndex;//binding.FirstBlendVertex + i;
var realVertex = this.RealVertexBuffer[vertexIndex];
var matrix = Matrix.CreateTranslation(realVertex.Position) * bone.AbsoluteMatrix;
//Position
var newPosition = Vector3.Transform(Vector3.Zero, matrix);
this.BlendVertexBuffer[blendVertexIndex].Position = newPosition;
//Normals
matrix = Matrix.CreateTranslation(
new Vector3(realVertex.Normal.X,
realVertex.Normal.Y,
realVertex.Normal.Z)) * bone.AbsoluteMatrix;
}
}
foreach (var child in bone.Children)
{
TransformVertices(child);
}
if (bone.Name == "ROOT")
{
this.InvalidateMesh();
}
}
/// <summary>
/// Computes the absolute position for all the bones in this skeleton.
/// </summary>
/// <param name="bone">The bone to start with, should always be the ROOT bone.</param>
/// <param name="world">A world matrix to use in the calculation.</param>
public void ComputeBonePositions(Bone bone, Matrix world)
{
var translateMatrix = Matrix.CreateTranslation(bone.Translation);
var rotationMatrix = FindQuaternionMatrix(bone.Rotation);
var myWorld = (rotationMatrix * translateMatrix) * world;
bone.AbsolutePosition = Vector3.Transform(Vector3.Zero, myWorld);
bone.AbsoluteMatrix = myWorld;
foreach (var child in bone.Children)
{
ComputeBonePositions(child, myWorld);
}
}
public Bone Clone()
{
var result = new Bone
{
Unknown = this.Unknown,
Name = this.Name,
ParentName = this.ParentName,
HasProps = this.HasProps,
Properties = this.Properties,
Translation = this.Translation,
Rotation = this.Rotation,
CanTranslate = this.CanTranslate,
CanRotate = this.CanRotate,
CanBlend = this.CanBlend,
WiggleValue = this.WiggleValue,
WigglePower = this.WigglePower
};
return result;
}
public void Read(Stream stream)
{
using (var io = IoBuffer.FromStream(stream))
{
var version = io.ReadUInt32();
Name = io.ReadPascalString();
var boneCount = io.ReadInt16();
Bones = new Bone[boneCount];
for (var i = 0; i < boneCount; i++)
{
Bones[i] = ReadBone(io);
}
/** Construct tree **/
foreach (var bone in Bones)
{
bone.Children = Bones.Where(x => x.ParentName == bone.Name).ToArray();
}
RootBone = Bones.FirstOrDefault(x => x.ParentName == "NULL");
ComputeBonePositions(RootBone, Matrix.Identity);
}
}
/// <summary>
/// Transforms the vertices in a mesh to their location in 3D-space based on
/// the location of a bone.
/// </summary>
/// <param name="Bne">The bone to start with (should be a skeleton's ROOT bone).</param>
/// <param name="Effect">The BasicEffect instance used for rendering.</param>
public void TransformVertices2(Bone Bne, ref BasicEffect Effect)
{
int BoneIndex = 0;
Matrix WorldMat = Effect.World * Bne.AbsoluteTransform;
for (BoneIndex = 0; BoneIndex < m_BndCount; BoneIndex++)
{
if (Bne.BoneName == m_BoneNames[m_BoneBindings[BoneIndex].BoneIndex])
break;
}
if (BoneIndex < m_BndCount)
{
for (int i = 0; i < m_BoneBindings[BoneIndex].VertexCount; i++)
{
int VertexIndex = m_BoneBindings[BoneIndex].FirstVertex + i;
Vector3 RelativeVertex = new Vector3(m_VertexData[VertexIndex, 0],
m_VertexData[VertexIndex, 1], m_VertexData[VertexIndex, 2]);
Vector3 RelativeNormal = new Vector3(m_VertexData[VertexIndex, 3],
m_VertexData[VertexIndex, 4], m_VertexData[VertexIndex, 5]);
WorldMat *= Matrix.CreateTranslation(RelativeVertex);
Vector3.Transform(RelativeVertex, WorldMat);
m_TransformedVertices[VertexIndex].Coord.X = WorldMat.M41;
m_TransformedVertices[VertexIndex].Coord.Y = WorldMat.M42;
m_TransformedVertices[VertexIndex].Coord.Z = WorldMat.M43;
WorldMat *= Matrix.CreateTranslation(new Vector3(-RelativeVertex.X,
-RelativeVertex.Y, -RelativeVertex.Z));
WorldMat *= Matrix.CreateTranslation(RelativeNormal);
Vector3.TransformNormal(RelativeNormal, WorldMat);
m_TransformedVertices[VertexIndex].Normal.X = WorldMat.M41;
m_TransformedVertices[VertexIndex].Normal.Y = WorldMat.M42;
m_TransformedVertices[VertexIndex].Normal.Z = WorldMat.M43;
WorldMat *= Matrix.CreateTranslation(new Vector3(-RelativeNormal.X,
-RelativeNormal.Y, -RelativeNormal.Z));
}
for (int i = 0; i < m_BoneBindings[BoneIndex].BlendedVertexCount; i++)
{
int VertexIndex = m_RealVertexCount + m_BoneBindings[BoneIndex].FirstBlendedVert + i;
Vector3 RelativeVertex = new Vector3(m_VertexData[VertexIndex, 0],
m_VertexData[VertexIndex, 1], m_VertexData[VertexIndex, 2]);
Vector3 RelativeNormal = new Vector3(m_VertexData[VertexIndex, 3],
m_VertexData[VertexIndex, 4], m_VertexData[VertexIndex, 5]);
WorldMat *= Matrix.CreateTranslation(RelativeVertex);
Vector3.Transform(RelativeVertex, WorldMat);
m_TransformedVertices[VertexIndex].Coord.X = WorldMat.M41;
m_TransformedVertices[VertexIndex].Coord.Y = WorldMat.M42;
m_TransformedVertices[VertexIndex].Coord.Z = WorldMat.M43;
WorldMat *= Matrix.CreateTranslation(new Vector3(-RelativeVertex.X,
-RelativeVertex.Y, -RelativeVertex.Z));
WorldMat *= Matrix.CreateTranslation(RelativeNormal);
Vector3.TransformNormal(RelativeNormal, WorldMat);
m_TransformedVertices[VertexIndex].Normal.X = WorldMat.M41;
m_TransformedVertices[VertexIndex].Normal.Y = WorldMat.M42;
m_TransformedVertices[VertexIndex].Normal.Z = WorldMat.M43;
WorldMat *= Matrix.CreateTranslation(new Vector3(-RelativeNormal.X,
-RelativeNormal.Y, -RelativeNormal.Z));
}
}
if (Bne.NumChildren == 1)
TransformVertices2(Bne.Children[0], ref Effect);
else if (Bne.NumChildren > 1)
{
for (int i = 0; i < Bne.NumChildren; i++)
TransformVertices2(Bne.Children[i], ref Effect);
}
}
private Bone ReadBone(IoBuffer reader)
{
var bone = new Bone();
bone.Unknown = reader.ReadInt32();
bone.Name = reader.ReadPascalString();
bone.ParentName = reader.ReadPascalString();
bone.HasProps = reader.ReadByte();
if (bone.HasProps != 0)
{
var propertyCount = reader.ReadInt32();
var property = new PropertyListItem();
for (var i = 0; i < propertyCount; i++)
{
var pairCount = reader.ReadInt32();
for (var x = 0; x < pairCount; x++)
{
property.KeyPairs.Add(new KeyValuePair<string, string>(
reader.ReadPascalString(),
reader.ReadPascalString()
));
}
}
bone.Properties.Add(property);
}
var xx = -reader.ReadFloat();
bone.Translation = new Vector3(
xx,
reader.ReadFloat(),
reader.ReadFloat()
);
bone.Rotation = new Vector4(
reader.ReadFloat(),
-reader.ReadFloat(),
-reader.ReadFloat(),
reader.ReadFloat()
);
bone.CanTranslate = reader.ReadInt32();
bone.CanRotate = reader.ReadInt32();
bone.CanBlend = reader.ReadInt32();
bone.WiggleValue = reader.ReadFloat();
bone.WigglePower = reader.ReadFloat();
return bone;
}
/// <summary>
/// Transforms the verticies making up this mesh into
/// the designated bone positions.
/// </summary>
/// <param name="bone">The bone to start with. Should always be the ROOT bone.</param>
public void TransformVertices(Bone bone)
{
var boneBinding = BoneBindings.FirstOrDefault(x => BoneNames[x.BoneIndex] == bone.Name);
if (boneBinding != null)
{
for (var i = 0; i < boneBinding.RealVertexCount; i++)
{
int vertexIndex = boneBinding.FirstRealVertex + i;
MeshVertexData transformedVertex = TransformedVertices[vertexIndex];
MeshVertexData relativeVertex = Vertex[vertexIndex];
var translatedMatrix = Matrix.CreateTranslation(new Vector3(relativeVertex.Vertex.Coord.X, relativeVertex.Vertex.Coord.Y, relativeVertex.Vertex.Coord.Z)) * bone.AbsoluteMatrix;
transformedVertex.Vertex.Coord = Vector3.Transform(Vector3.Zero, translatedMatrix);
//Normals...
translatedMatrix = Matrix.CreateTranslation(new Vector3(relativeVertex.Vertex.NormalCoord.X, relativeVertex.Vertex.NormalCoord.Y, relativeVertex.Vertex.NormalCoord.Z)) * bone.AbsoluteMatrix;
transformedVertex.Vertex.NormalCoord = Vector3.Transform(Vector3.Zero, translatedMatrix);
}
}
foreach (var child in bone.Children)
{
TransformVertices(child);
}
}
private Bone ReadBone(VBReader reader)
{
var bone = new Bone();
bone.Unknown = reader.ReadInt32();
bone.Name = reader.ReadPascalString();
bone.ParentName = reader.ReadPascalString();
System.Diagnostics.Debug.WriteLine("Name: " + bone.Name);
System.Diagnostics.Debug.WriteLine("ParentName: " + bone.ParentName);
bone.HasProps = reader.ReadByte();
if (bone.HasProps != 0)
{
var propertyCount = reader.ReadInt32();
var property = new PropertyListItem();
for (var i = 0; i < propertyCount; i++){
var pairCount = reader.ReadInt32();
for (var x = 0; x < pairCount; x++){
property.KeyPairs.Add(new KeyValuePair<string, string>(
reader.ReadPascalString(),
reader.ReadPascalString()
));
}
}
bone.Properties.Add(property);
}
/*if (bone.Name == "ROOT")
{
var y = true;
}*/
var xx = -reader.ReadFloat();
bone.Translation = new Vector3(
xx,
reader.ReadFloat(),
reader.ReadFloat()
);
bone.Rotation = new Vector4(
reader.ReadFloat(),
-reader.ReadFloat(),
-reader.ReadFloat(),
reader.ReadFloat()
);
bone.CanTranslate = reader.ReadInt32();
bone.CanRotate = reader.ReadInt32();
bone.CanBlend = reader.ReadInt32();
bone.WiggleValue = reader.ReadFloat();
bone.WigglePower = reader.ReadFloat();
return bone;
}
/// <summary>
/// Reads a skeleton.
/// </summary>
/// <param name="data">The data from which to read this skeleton.</param>
public void Read(byte[] data)
{
using(var reader = new VBReader(new MemoryStream(data))){
Version = reader.ReadInt32();
Name = reader.ReadPascalString();
BoneCount = reader.ReadInt16();
System.Diagnostics.Debug.WriteLine("========== Skeleton ==========");
System.Diagnostics.Debug.WriteLine("Version: " + Version);
System.Diagnostics.Debug.WriteLine("Name: " + Name);
System.Diagnostics.Debug.WriteLine("BoneCount: " + BoneCount);
Bones = new Bone[BoneCount];
for (var i = 0; i < BoneCount; i++){
System.Diagnostics.Debug.WriteLine("\n [Bone " + i + "]");
Bones[i] = ReadBone(reader);
}
/** Construct tree **/
foreach (var bone in Bones){
bone.Children = Bones.Where(x => x.ParentName == bone.Name).ToArray();
}
RootBone = Bones.FirstOrDefault(x => x.ParentName == "NULL");
}
}
/// <summary>
/// Replaces a bone in this skeleton's list of bones with a specific bone.
/// </summary>
/// <param name="Index">The index of the bone to replace/update.</param>
/// <param name="Bne">The bone with which to replace the bone at the specified index.</param>
public void UpdateBone(int Index, Bone Bne)
{
m_Bones[Index] = Bne;
}
public Skeleton(GraphicsDevice Device, byte[] Filedata)
{
MemoryStream MemStream = new MemoryStream(Filedata);
BinaryReader Reader = new BinaryReader(MemStream);
m_Version = Endian.SwapUInt32(Reader.ReadUInt32());
m_Name = Encoding.ASCII.GetString(Reader.ReadBytes(Reader.ReadByte()));
m_BoneCount = Endian.SwapUInt16(Reader.ReadUInt16());
m_Bones = new Bone[m_BoneCount];
for (int i = 0; i < m_BoneCount; i++)
{
Endian.SwapUInt32(Reader.ReadUInt32()); //1 in hexadecimal... typical useless Maxis value...
Bone Bne = new Bone();
Bne.ID = i;
Bne.BoneName = Encoding.ASCII.GetString(Reader.ReadBytes(Reader.ReadByte()));
Bne.ParentName = Encoding.ASCII.GetString(Reader.ReadBytes(Reader.ReadByte()));
Bne.HasPropertyList = Reader.ReadByte();
if (Bne.HasPropertyList == 1)
Bne.PList = ReadPropList(Reader);
//Little Endian
Bne.Translations = new float[3];
Bne.Translations[0] = Reader.ReadSingle();
Bne.Translations[1] = Reader.ReadSingle();
Bne.Translations[2] = Reader.ReadSingle();
Bne.Quaternions = new float[4];
Bne.Quaternions[0] = Reader.ReadSingle();
Bne.Quaternions[1] = Reader.ReadSingle();
Bne.Quaternions[2] = Reader.ReadSingle();
Bne.Quaternions[3] = Reader.ReadSingle();
Bne.CanTranslate = Endian.SwapInt32(Reader.ReadInt32());
Bne.CanRotate = Endian.SwapInt32(Reader.ReadInt32());
Bne.CanUseBlending = Endian.SwapInt32(Reader.ReadInt32());
//Little endian.
Bne.CanWiggle = Reader.ReadSingle();
Bne.WiggleAmount = Reader.ReadSingle();
Bne.BoneEffect = new BasicEffect(Device, null);
Bne.Children = new Bone[m_BoneCount - i - 1];
m_Bones[i] = Bne;
}
for(int i = 0; i < m_Bones.Length; i++)
{
for(int j = 0; j < m_Bones.Length; j++)
{
if (m_Bones[i].ParentName == m_Bones[j].BoneName)
m_Bones[i].Parent = m_Bones[j];
}
}
foreach (Bone Bne in m_Bones)
{
Bne.ComputeAbsoluteTransform();
}
Reader.Close();
}
