extract FrameData from OrderManager. fix disconnect bug in NetworkConnection

OpenRA.Game/Network/FrameData.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace OpenRA.Network
+{
+	class FrameData
+	{
+		public struct ClientOrder
+		{
+			public int Client;
+			public Order Order;
+		}
+
+		readonly Dictionary<int, int> clientQuitTimes = new Dictionary<int, int>();
+		readonly Dictionary<int, Dictionary<int, byte[]>> framePackets = new Dictionary<int, Dictionary<int, byte[]>>();
+
+		public IEnumerable<int> ClientsPlayingInFrame( int frame )
+		{
+			return clientQuitTimes
+				.Where( x => frame <= x.Value )
+				.Select( x => x.Key )
+				.OrderBy( x => x );
+		}
+
+		public void ClientQuit( int clientId, int lastClientFrame )
+		{
+			clientQuitTimes.Add( clientId, lastClientFrame );
+		}
+
+		public void AddFrameOrders( int clientId, int frame, byte[] orders )
+		{
+			var frameData = framePackets.GetOrAdd( frame );
+			frameData.Add( clientId, orders );
+		}
+
+		public bool IsReadyForFrame( int frame )
+		{
+			var frameData = framePackets.GetOrAdd( frame );
+			return ClientsPlayingInFrame( frame )
+				.All( client => frameData.ContainsKey( client ) );
+		}
+
+		public IEnumerable<ClientOrder> OrdersForFrame( World world, int frame )
+		{
+			var frameData = framePackets[ frame ];
+			var clientData = ClientsPlayingInFrame( frame )
+				.ToDictionary( k => k, v => frameData[ v ] );
+
+			return clientData
+				.SelectMany( x => x.Value
+					.ToOrderList( world )
+					.Select( o => new ClientOrder { Client = x.Key, Order = o } ) );
+		}
+	}
+}