some Network changes.

OpenRa.Game/Network/OrderIO.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace OpenRa.Network
+{
+	static class OrderIO
+	{
+		public static void Write(this Stream s, byte[] buf)
+		{
+			s.Write(buf, 0, buf.Length);
+		}
+
+		public static void WriteFrameData(this Stream s, IEnumerable<Order> orders, int frameNumber)
+		{
+			var bytes = Serialize( orders, frameNumber );
+			s.Write( BitConverter.GetBytes( (int)bytes.Length ) );
+			s.Write( bytes );
+		}
+
+		public static byte[] Serialize( this IEnumerable<Order> orders, int frameNumber )
+		{
+			var ms = new MemoryStream();
+			ms.Write( BitConverter.GetBytes( frameNumber ) );
+			foreach( var o in orders.Select( o => o.Serialize() ) )
+				ms.Write( o );
+			return ms.ToArray();
+		}
+
+		public static List<Order> ToOrderList(this byte[] bytes, World world)
+		{
+			var ms = new MemoryStream(bytes, 4, bytes.Length - 4);
+			var reader = new BinaryReader(ms);
+			var ret = new List<Order>();
+			while( ms.Position < ms.Length )
+			{
+				var o = Order.Deserialize( world, reader );
+				if( o != null )
+					ret.Add( o );
+			}
+			return ret;
+		}
+	}
+}