public string SerializeOBJ(int vertexIndexOffset, int textureCoordinateIndexOffset, int normalIndexOffset)
{
//Temp
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.AppendLine("o " + m_Name);
foreach (Vertex vertex in m_Vertices)
{
//Add offset if needed
if (m_Position != null && m_Position.IsNull() == false)
{
Vertex tempVertex = new Vertex(vertex);
tempVertex.AddVector3f(m_Position);
stringBuilder.AppendLine("v " + tempVertex.ToString());
}
else
{
stringBuilder.AppendLine("v " + vertex.ToString());
}
}
foreach (TextureCoordinate textureCoordinate in m_TextureCoordinates)
{
stringBuilder.AppendLine("vt " + textureCoordinate.ToString());
}
foreach (Normal normal in m_Normals)
{
stringBuilder.AppendLine("vn " + normal.ToString());
}
foreach (Face face in m_Faces)
{
stringBuilder.AppendLine(face.SerializeOBJ(vertexIndexOffset, textureCoordinateIndexOffset, normalIndexOffset));
}
return(stringBuilder.ToString());
}
//Serialization
public bool DeserializeOBJPart(string data, int vertexIndexOffset, int textureCoordinateIndexOffset, int normalIndexOffset)
{
//NOTE: We are only parsing a very small selection of OBJ features!
//Full list of features: https://en.wikipedia.org/wiki/Wavefront_.obj_file
//Vertex
if (data.StartsWith("v "))
{
//Remove the "v " so Vector4f can parse it (w is optional)
data = data.Substring(2, data.Length - 2);
Vertex newVertex = new Vertex();
bool success = newVertex.Deserialize(data);
if (success == true)
{
m_Vertices.Add(newVertex);
}
return(success);
}
//Texture coordinate
else if (data.StartsWith("vt "))
{
//Remove the "vt " so Vector3f can parse it (w is optional)
data = data.Substring(3, data.Length - 3);
TextureCoordinate newTextureCoordinate = new TextureCoordinate();
bool success = newTextureCoordinate.Deserialize(data);
if (success == true)
{
m_TextureCoordinates.Add(newTextureCoordinate);
}
return(success);
}
//Normal (currently not used by Prodeus, but here for the sake of completeness)
else if (data.StartsWith("vn "))
{
//Remove the "vn " so Vector3f can parse it
data = data.Substring(3, data.Length - 3);
Normal newNormal = new Normal();
bool success = newNormal.Deserialize(data);
if (success == true)
{
m_Normals.Add(newNormal);
}
return(success);
}
//Face
else if (data.StartsWith("f "))
{
Face newFace = new Face();
bool success = newFace.DeserializeOBJ(data, vertexIndexOffset, textureCoordinateIndexOffset, normalIndexOffset);
if (success == true)
{
m_Faces.Add(newFace);
}
return(success);
}
return(true);
}
