/// <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;
}
/// <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 Matrix World)
{
int BoneIndex = 0;
Matrix WorldMat = 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 World);
else if (Bne.NumChildren > 1)
{
for (int i = 0; i < Bne.NumChildren; i++)
TransformVertices2(Bne.Children[i], ref World);
}
}
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();
}
