From 57b7eb80139e8402f7af4bceb25ff499f64304db Mon Sep 17 00:00:00 2001
From: UnknownShadow200 <unknownshadow200@gmail.com>
Date: Wed, 23 Dec 2015 23:19:36 +1100
Subject: [PATCH] Workaround for servers that rarely send LevelDataChunk before
 LevelBegin due to async sending. (Thanks BPzeBanshee)

---
 ClassicalSharp/Network/NetworkProcessor.Original.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/ClassicalSharp/Network/NetworkProcessor.Original.cs b/ClassicalSharp/Network/NetworkProcessor.Original.cs
index f9b8434fa..2d79ce60a 100644
--- a/ClassicalSharp/Network/NetworkProcessor.Original.cs
+++ b/ClassicalSharp/Network/NetworkProcessor.Original.cs
@@ -82,6 +82,8 @@ namespace ClassicalSharp {
 		}
 		
 		void HandleLevelInit() {
+			if( gzipStream != null )
+				return;
 			game.Map.Reset();
 			game.SetNewScreen( new LoadingMapScreen( game, ServerName, ServerMotd ) );
 			if( ServerMotd.Contains( "cfg=" ) ) {
@@ -108,6 +110,10 @@ namespace ClassicalSharp {
 		}
 		
 		void HandleLevelDataChunk() {
+			// Workaround for some servers that send LevelDataChunk before LevelInit
+			// due to their async packet sending behaviour.
+			if( gzipStream == null )
+				HandleLevelInit();
 			int usedLength = reader.ReadInt16();
 			gzippedMap.Position = 0;
 			gzippedMap.SetLength( usedLength );
@@ -149,6 +155,8 @@ namespace ClassicalSharp {
 				sentWomId = true;
 			}
 			gzipStream = null;
+			ServerName = null;
+			ServerMotd = null;
 			GC.Collect();
 		}