using Vellum;

namespace Azimuth.Vellum
{
    /// <summary>
    /// Saves a Vector as its two coordinates.
    /// </summary>
    public sealed class VectorConverter : SaveConverter<Vector>
    {
        public override SaveNode Write(Vector value, SaveSession session)
        {
            SaveNode returnMe = SaveNode.NewTable();
            returnMe.Entries["X"] = session.ToNode(value.X);
            returnMe.Entries["Y"] = session.ToNode(value.Y);
            return returnMe;
        }

        public override Vector Read(SaveNode node, SaveSession session)
        {
            return new Vector(
                session.FromNode<Scalar>(node.RequireEntry("X")),
                session.FromNode<Scalar>(node.RequireEntry("Y")));
        }
    }
}