From 60f49b39d42b02c55b44fb68749807ec3353c1e2 Mon Sep 17 00:00:00 2001
From: Paul Chote <paul@chote.net>
Date: Thu, 11 Jul 2013 17:59:34 +1200
Subject: [PATCH] Fix #3546.

---
 OpenRA.Game/Sync.cs | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/OpenRA.Game/Sync.cs b/OpenRA.Game/Sync.cs
index 7e41470919..78881db317 100755
--- a/OpenRA.Game/Sync.cs
+++ b/OpenRA.Game/Sync.cs
@@ -82,27 +82,27 @@ namespace OpenRA
 			}
 			else if (type == typeof(WRange))
 			{
-				il.EmitCall(OpCodes.Call, ((Func<WRange, int>)(a => a.GetHashCode())).Method, null);
+				il.EmitCall(OpCodes.Call, ((Func<WRange, int>)hash<WRange>).Method, null);
 				il.Emit(OpCodes.Xor);
 			}
 			else if (type == typeof(WPos))
 			{
-				il.EmitCall(OpCodes.Call, ((Func<WPos, int>)(a => a.GetHashCode())).Method, null);
+				il.EmitCall(OpCodes.Call, ((Func<WPos, int>)hash<WPos>).Method, null);
 				il.Emit(OpCodes.Xor);
 			}
 			else if (type == typeof(WVec))
 			{
-				il.EmitCall(OpCodes.Call, ((Func<WVec, int>)(a => a.GetHashCode())).Method, null);
+				il.EmitCall(OpCodes.Call, ((Func<WVec, int>)hash<WVec>).Method, null);
 				il.Emit(OpCodes.Xor);
 			}
 			else if (type == typeof(WAngle))
 			{
-				il.EmitCall(OpCodes.Call, ((Func<WAngle, int>)(a => a.GetHashCode())).Method, null);
+				il.EmitCall(OpCodes.Call, ((Func<WAngle, int>)hash<WAngle>).Method, null);
 				il.Emit(OpCodes.Xor);
 			}
 			else if (type == typeof(WRot))
 			{
-				il.EmitCall(OpCodes.Call, ((Func<WRot, int>)(a => a.GetHashCode())).Method, null);
+				il.EmitCall(OpCodes.Call, ((Func<WRot, int>)hash<WRot>).Method, null);
 				il.Emit(OpCodes.Xor);
 			}
 			else if (type == typeof(TypeDictionary))
@@ -217,6 +217,11 @@ namespace OpenRA
 			return 0;
 		}
 
+		public static int hash<T>(T t)
+		{
+			return t.GetHashCode();
+		}
+
 		public static void CheckSyncUnchanged( World world, Action fn )
 		{
 			CheckSyncUnchanged( world, () => { fn(); return true; } );