/// <summary>
/// Reads a SEAnim from a stream
/// </summary>
/// <param name="Stream">The stream to read from</param>
/// <returns>A SEAnim if successful, otherwise throws an error and returns null</returns>
public static SEModel Read(Stream Stream)
{
// Create a new model
var model = new SEModel();
// Setup a new reader
using (ExtendedBinaryReader readFile = new ExtendedBinaryReader(Stream))
{
// Magic
var Magic = readFile.ReadChars(7);
// Version
var Version = readFile.ReadInt16();
// Header size
var HeaderSize = readFile.ReadInt16();
// Check magic
if (!Magic.SequenceEqual(new char[] { 'S', 'E', 'M', 'o', 'd', 'e', 'l' }))
{
// Bad file
throw new Exception("Bad SEModel file, magic was invalid");
}
// Data present flags
var DataPresentFlags = readFile.ReadByte();
// Bone data present flags
var BoneDataPresentFlags = readFile.ReadByte();
// Mesh data present flags
var MeshDataPresentFlags = readFile.ReadByte();
// Read counts
var BoneCount = readFile.ReadInt32();
var MeshCount = readFile.ReadInt32();
var MatCount = readFile.ReadInt32();
// Skip 3 reserved bytes
readFile.BaseStream.Position += 3;
// Read bone tag names
List <string> BoneNames = new List <string>();
// Loop
for (int i = 0; i < BoneCount; i++)
{
BoneNames.Add(readFile.ReadNullTermString());
}
// Loop and read bones
for (int i = 0; i < BoneCount; i++)
{
// Read bone flags (unused)
var BoneFlags = readFile.ReadByte();
// Read bone index
var ParentIndex = readFile.ReadInt32();
// Check for global matricies
Vector3 GlobalPosition = Vector3.Zero;
Quaternion GlobalRotation = Quaternion.Identity;
// Check
if (Convert.ToBoolean(BoneDataPresentFlags & (byte)SEModel_BoneDataPresenceFlags.SEMODEL_PRESENCE_GLOBAL_MATRIX))
{
GlobalPosition = new Vector3(readFile.ReadSingle(), readFile.ReadSingle(), readFile.ReadSingle());
GlobalRotation = new Quaternion(readFile.ReadSingle(), readFile.ReadSingle(), readFile.ReadSingle(), readFile.ReadSingle());
}
// Check for local matricies
Vector3 LocalPosition = Vector3.Zero;
Quaternion LocalRotation = Quaternion.Identity;
// Check
if (Convert.ToBoolean(BoneDataPresentFlags & (byte)SEModel_BoneDataPresenceFlags.SEMODEL_PRESENCE_LOCAL_MATRIX))
{
LocalPosition = new Vector3(readFile.ReadSingle(), readFile.ReadSingle(), readFile.ReadSingle());
LocalRotation = new Quaternion(readFile.ReadSingle(), readFile.ReadSingle(), readFile.ReadSingle(), readFile.ReadSingle());
}
// Check for scales
Vector3 Scale = Vector3.One;
// Check
if (Convert.ToBoolean(BoneDataPresentFlags & (byte)SEModel_BoneDataPresenceFlags.SEMODEL_PRESENCE_SCALES))
{
Scale = new Vector3(readFile.ReadSingle(), readFile.ReadSingle(), readFile.ReadSingle());
}
// Add the bone
model.AddBone(BoneNames[i], ParentIndex, GlobalPosition, GlobalRotation, LocalPosition, LocalRotation, Scale);
}
// Loop and read meshes
for (int i = 0; i < MeshCount; i++)
{
// Make a new submesh
var mesh = new SEModelMesh();
// Read mesh flags (unused)
var MeshFlags = readFile.ReadByte();
// Read counts
var MatIndiciesCount = readFile.ReadByte();
var MaxSkinInfluenceCount = readFile.ReadByte();
var VertexCount = readFile.ReadInt32();
var FaceCount = readFile.ReadInt32();
// Loop and read positions
for (int v = 0; v < VertexCount; v++)
{
mesh.AddVertex(new SEModelVertex()
{
Position = new Vector3(readFile.ReadSingle(), readFile.ReadSingle(), readFile.ReadSingle())
});
}
// Read uvlayers
if (Convert.ToBoolean(MeshDataPresentFlags & (byte)SEModel_MeshDataPresenceFlags.SEMODEL_PRESENCE_UVSET))
{
for (int v = 0; v < VertexCount; v++)
{
for (int l = 0; l < MatIndiciesCount; l++)
{
mesh.Verticies[v].UVSets.Add(new Vector2(readFile.ReadSingle(), readFile.ReadSingle()));
}
}
}
// Read normals
if (Convert.ToBoolean(MeshDataPresentFlags & (byte)SEModel_MeshDataPresenceFlags.SEMODEL_PRESENCE_NORMALS))
{
// Loop and read vertex normals
for (int v = 0; v < VertexCount; v++)
{
mesh.Verticies[v].VertexNormal = new Vector3(readFile.ReadSingle(), readFile.ReadSingle(), readFile.ReadSingle());
}
}
// Read colors
if (Convert.ToBoolean(MeshDataPresentFlags & (byte)SEModel_MeshDataPresenceFlags.SEMODEL_PRESENCE_COLOR))
{
// Loop and read colors
for (int v = 0; v < VertexCount; v++)
{
mesh.Verticies[v].VertexColor = new Color(readFile.ReadByte(), readFile.ReadByte(), readFile.ReadByte(), readFile.ReadByte());
}
}
// Read weights
if (Convert.ToBoolean(MeshDataPresentFlags & (byte)SEModel_MeshDataPresenceFlags.SEMODEL_PRESENCE_WEIGHTS))
{
for (int v = 0; v < VertexCount; v++)
{
// Read IDs and Values
for (int l = 0; l < MaxSkinInfluenceCount; l++)
{
if (BoneCount <= 0xFF)
{
mesh.Verticies[v].Weights.Add(new SEModelWeight()
{
BoneIndex = readFile.ReadByte(), BoneWeight = readFile.ReadSingle()
});
}
else if (BoneCount <= 0xFFFF)
{
mesh.Verticies[v].Weights.Add(new SEModelWeight()
{
BoneIndex = readFile.ReadUInt16(), BoneWeight = readFile.ReadSingle()
});
}
else
{
mesh.Verticies[v].Weights.Add(new SEModelWeight()
{
BoneIndex = readFile.ReadUInt32(), BoneWeight = readFile.ReadSingle()
});
}
}
}
}
// Loop and read faces
for (int f = 0; f < FaceCount; f++)
{
if (VertexCount <= 0xFF)
{
mesh.AddFace(readFile.ReadByte(), readFile.ReadByte(), readFile.ReadByte());
}
else if (VertexCount <= 0xFFFF)
{
mesh.AddFace(readFile.ReadUInt16(), readFile.ReadUInt16(), readFile.ReadUInt16());
}
else
{
mesh.AddFace(readFile.ReadUInt32(), readFile.ReadUInt32(), readFile.ReadUInt32());
}
}
// Read material reference indicies
for (int f = 0; f < MatIndiciesCount; f++)
{
mesh.AddMaterialIndex(readFile.ReadInt32());
}
// Add the mesh
model.AddMesh(mesh);
}
// Loop and read materials
for (int m = 0; m < MatCount; m++)
{
var mat = new SEModelMaterial();
// Read the name
mat.Name = readFile.ReadNullTermString();
// Read IsSimpleMaterial
var IsSimpleMaterial = readFile.ReadBoolean();
// Read the material
if (IsSimpleMaterial)
{
mat.MaterialData = new SEModelSimpleMaterial()
{
DiffuseMap = readFile.ReadNullTermString(),
NormalMap = readFile.ReadNullTermString(),
SpecularMap = readFile.ReadNullTermString()
};
}
// Add the material
model.AddMaterial(mat);
}
}
// Return result
return(model);
}