private FaceVertex ParseFaceVertex(string vertexString)
{
var fields = vertexString.Split(new[]{'/'}, StringSplitOptions.None);
var vertexIndex = fields[0].ParseInvariantInt();
var faceVertex = new FaceVertex(vertexIndex, 0, 0);
if(fields.Length > 1)
{
var textureIndex = fields[1].Length == 0 ? 0 : fields[1].ParseInvariantInt();
faceVertex.TextureIndex = textureIndex;
}
if(fields.Length > 2)
{
var normalIndex = fields.Length > 2 && fields[2].Length == 0 ? 0 : fields[2].ParseInvariantInt();
faceVertex.NormalIndex = normalIndex;
}
return faceVertex;
}
public void AddVertex(FaceVertex vertex)
{
_vertices.Add(vertex);
}