shuffling

OpenRa.Game/Orders/ReplayOrderSource.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace OpenRa.Game.Orders
+{
+	class ReplayOrderSource : IOrderSource
+	{
+		BinaryReader replayReader;
+		public ReplayOrderSource(string replayFilename)
+		{
+			replayReader = new BinaryReader(File.Open(replayFilename, FileMode.Open));
+		}
+
+		public void SendLocalOrders(int localFrame, List<Order> localOrders) { }
+
+		public List<Order> OrdersForFrame(int frameNumber)
+		{
+			if (frameNumber == 0)
+				return new List<Order>();
+
+			try
+			{
+				var len = replayReader.ReadInt32() - 4;
+				var frame = replayReader.ReadInt32();
+				var ret = replayReader.ReadBytes(len).ToOrderList();
+
+				if (frameNumber != frame)
+					throw new InvalidOperationException("Attempted time-travel in OrdersForFrame (replay)");
+
+				return ret;
+			}
+			catch (EndOfStreamException)
+			{
+				return new List<Order>();
+			}
+		}
+
+		public bool IsReadyForFrame(int frameNumber)
+		{
+			return true;
+		}
+	}
+}