using System;

using System.Collections.Generic;

​

using System;

using System.IO;

​

[Serializable]

public class MyItem {

    internal string m_name = "";

    internal int m_position = 0;

    internal float m_color = 0f;

    internal int m_direction = 0;

    internal float m_power = 0f;

​

    public MyItem(string name, int position, float color, int direction, float power) {

        m_name = name;

        m_position = position;

        m_color = color;

        m_direction = direction;

        m_power = power;

    }

​

    public byte[] Serialize() {

        using (MemoryStream m = new MemoryStream()) {

            using (BinaryWriter writer = new BinaryWriter(m)) {

                writer.Write(m_name);

                writer.Write(m_position);

                writer.Write(m_color);

                writer.Write(m_direction);

                writer.Write(m_power);

            }

            return m.ToArray();

        }

    }

​

    public static MyItem Desserialize(byte[] data) {

        string name;

        int position;

        float color;

        int direction;

        float power;

​

        using (MemoryStream m = new MemoryStream(data)) {

            using (BinaryReader reader = new BinaryReader(m)) {

                name = reader.ReadString();

                position = reader.ReadInt32();

                color = reader.ReadSingle();

                direction = reader.ReadInt32();

                power = reader.ReadSingle();

            }

        }

​

        return new MyItem(name, position, color, direction, power);

    }

}

​

public static class MyItemSerializer

{

    public static byte[] Serialize(this IEnumerable<MyItem> items)

    {

        using (MemoryStream m = new MemoryStream()) 

        {

            using (BinaryWriter writer = new BinaryWriter(m, System.Text.Encoding.UTF8, true)) 

            {

                foreach (var item in items) 

                {

                    var itemBytes = item.Serialize();

                    writer.Write(itemBytes.Length);

                    writer.Write(itemBytes);

                }

            }

            return m.ToArray();

        }

    }

    public static List<MyItem> Deserialize(byte[] data)

    {

        var ret = new List<MyItem>();

        using (MemoryStream m = new MemoryStream(data))

        {

            using (BinaryReader reader = new BinaryReader(m, System.Text.Encoding.UTF8)) 

            {

                while (m.Position < m.Length)

                {

                    var itemLength = reader.ReadInt32();

                    var itemBytes = reader.ReadBytes(itemLength);

                    var item = MyItem.Desserialize(itemBytes);

                    ret.Add(item);

                }

            }

        }

        return ret;

    }

}

​

public class Program

{

    public static void Main()

    {

        var itemlist = new List<MyItem> { new MyItem("item1", 10, 5, 1, 2), new MyItem("item 2", 100, 54, 11, 22) };

        var bytes = MyItemSerializer.Serialize(itemlist);

        var deserializedItems = MyItemSerializer.Deserialize(bytes);

        foreach (var item in deserializedItems)

        {

            Console.WriteLine(">> item " + item.m_name);

        }

    }

}