private IEnumerable <Node> readNodes(JsonTextReader reader, RoadManager roads, JsonSerializer serializer, List <Node> nodes)
{
if (reader.Read())
{
// start array
if (reader.TokenType == JsonToken.StartArray)
{
do
{
if (reader.Read()) // inside node
{
if (reader.TokenType == JsonToken.StartObject)
{
var position = serializer.Deserialize <Vector3D>(reader);
var node = roads.CreateNode(position);
nodes.Add(node);
yield return(node);
}
}
} while (reader.TokenType != JsonToken.EndArray);
}
else
{
throw new FormatException("Expected array start");
}
}
}