From 5ed8c3dafff2c9643b70a35ed6bcd6e920890a12 Mon Sep 17 00:00:00 2001
From: David Vierra <codewarrior@hawaii.rr.com>
Date: Mon, 29 Oct 2012 04:38:03 -1000
Subject: [PATCH] Backend: Add listDirtyChunks to let MCEdit find out which
 chunks to redraw after saving and relighting the level.

---
 infiniteworld.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/infiniteworld.py b/infiniteworld.py
index 6f812d2..c6388b6 100644
--- a/infiniteworld.py
+++ b/infiniteworld.py
@@ -1581,6 +1581,11 @@ class MCInfdevOldLevel(ChunkedLevelMixin, EntityLevel):
         for cx, cz in box.chunkPositions:
             self.markDirtyChunk(cx, cz)
 
+    def listDirtyChunks(self):
+        for cPos, chunkData in self._loadedChunkData.iteritems():
+            if chunkData.dirty:
+                yield cPos
+
     # --- HeightMaps ---
 
     def heightMapAt(self, x, z):