source: OniSplit/Objects/PowerUp.cs

using System;
using System.Xml;
using Oni.Metadata;
using Oni.Xml;

namespace Oni.Objects
{
    internal class PowerUp : ObjectBase
    {
        public PowerUpClass Type;

        public PowerUp()
        {
            TypeId = ObjectType.PowerUp;
        }

        protected override void WriteOsd(BinaryWriter writer)
        {
            writer.Write((uint)Type);
        }

        protected override void ReadOsd(BinaryReader reader)
        {
            Type = (PowerUpClass)reader.ReadUInt32();
        }

        protected override void WriteOsd(XmlWriter xml)
        {
            xml.WriteElementString("Class", MetaEnum.ToString<PowerUpClass>(Type));
        }

        protected override void ReadOsd(XmlReader xml, ObjectLoadContext context)
        {
            Type = xml.ReadElementContentAsEnum<PowerUpClass>("Class");
        }
    }
}