From c0e59602492d144950a4017ebc3d9635a0b6c5fd Mon Sep 17 00:00:00 2001
From: Zannick <jokeserver@gmail.com>
Date: Mon, 19 Aug 2013 23:41:46 -0700
Subject: [PATCH] Don't contaminate the arena.

Fixes arena crash caused by c56f7848.
---
 crawl-ref/source/effects.cc |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/crawl-ref/source/effects.cc b/crawl-ref/source/effects.cc
index 0cbe682..d8b0bbc 100644
--- a/crawl-ref/source/effects.cc
+++ b/crawl-ref/source/effects.cc
@@ -2211,7 +2211,8 @@ void handle_time()
         forget_map(true);
 
     // Magic contamination from spells and Orb.
-    _handle_magic_contamination();
+    if (!crawl_state.game_is_arena())
+        _handle_magic_contamination();
 
     // Every 20 turns, a variety of other effects.
     if (! (_div(base_time, 200) > _div(old_time, 200)))
-- 
1.7.4.4