From b0b8813022d8c5e999294991def8dbf9bec57db8 Mon Sep 17 00:00:00 2001
From: David Vierra <codewarrior@hawaii.rr.com>
Date: Sun, 9 Dec 2012 12:18:00 -1000
Subject: [PATCH] Fixed: PE world not appearing when Show->TileTicks is
 enabled. Fixes #211

---
 renderer.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/renderer.py b/renderer.py
index 205dd4a..2d8ad70 100644
--- a/renderer.py
+++ b/renderer.py
@@ -948,7 +948,7 @@ class TileTicksRenderer(EntityRendererGeneric):
     layer = Layer.TileTicks
 
     def makeChunkVertices(self, chunk):
-        if "Level" in chunk.root_tag and "TileTicks" in chunk.root_tag["Level"]:
+        if chunk.root_tag and "Level" in chunk.root_tag and "TileTicks" in chunk.root_tag["Level"]:
             ticks = chunk.root_tag["Level"]["TileTicks"]
             if len(ticks):
                 self.vertexArrays.append(self._computeVertices([[t[i].value for i in "xyz"] for t in ticks],