From eeb101c040c61e67ea6a5c9318e60c3c6bd0f901 Mon Sep 17 00:00:00 2001
From: Paul Chote <pchote@users.noreply.github.com>
Date: Sat, 1 Aug 2015 13:29:15 +0100
Subject: [PATCH] Make Contrail fields readonly.

---
 OpenRA.Mods.Common/Effects/Contrail.cs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/OpenRA.Mods.Common/Effects/Contrail.cs b/OpenRA.Mods.Common/Effects/Contrail.cs
index 0a784df1a3..c5c54df60b 100644
--- a/OpenRA.Mods.Common/Effects/Contrail.cs
+++ b/OpenRA.Mods.Common/Effects/Contrail.cs
@@ -36,9 +36,11 @@ namespace OpenRA.Mods.Common.Effects
 
 	class Contrail : ITick, IRender
 	{
-		ContrailInfo info;
+		readonly ContrailInfo info;
+		readonly IBodyOrientation body;
+
+		// This is a mutable struct, so it can't be readonly.
 		ContrailRenderable trail;
-		IBodyOrientation body;
 
 		public Contrail(Actor self, ContrailInfo info)
 		{