From 4f47dac8ec4e36f652b583d91d50331ec1dfa860 Mon Sep 17 00:00:00 2001
From: Alejandro Liu <alejandro_liu@hotmail.com>
Date: Fri, 13 Mar 2015 06:23:32 +0100
Subject: [PATCH 1/2] Fix some Chunk corrumption due to Chunk overlap

---
 src/pocketmine/level/format/mcregion/RegionLoader.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pocketmine/level/format/mcregion/RegionLoader.php b/src/pocketmine/level/format/mcregion/RegionLoader.php
index 6a1142d28..2735683fa 100644
--- a/src/pocketmine/level/format/mcregion/RegionLoader.php
+++ b/src/pocketmine/level/format/mcregion/RegionLoader.php
@@ -189,8 +189,8 @@ class RegionLoader{
 		$sectors = (int) ceil(($length + 4) / 4096);
 		$index = self::getChunkOffset($x, $z);
 		if($this->locationTable[$index][1] < $sectors){
+			$this->locationTable[$index][0] = $this->lastSector+1;
 			$this->lastSector += $sectors; //The GC will clean this shift "later"
-			$this->locationTable[$index][0] = $this->lastSector;
 		}
 		$this->locationTable[$index][1] = $sectors;
 		$this->locationTable[$index][2] = time();

From 59e9446fe5711215a09537dfc420ba4fa349afe2 Mon Sep 17 00:00:00 2001
From: Alejandro Liu <alejandro_liu@hotmail.com>
Date: Fri, 13 Mar 2015 08:19:47 +0100
Subject: [PATCH 2/2] Added another place where the same happens

---
 src/pocketmine/level/format/mcregion/RegionLoader.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/pocketmine/level/format/mcregion/RegionLoader.php b/src/pocketmine/level/format/mcregion/RegionLoader.php
index 2735683fa..ec833c242 100644
--- a/src/pocketmine/level/format/mcregion/RegionLoader.php
+++ b/src/pocketmine/level/format/mcregion/RegionLoader.php
@@ -247,7 +247,8 @@ class RegionLoader{
 			$chunk = Binary::writeInt(strlen($chunk)) . $chunk;
 			$sectors = (int) ceil(strlen($chunk) / 4096);
 			if($sectors > $this->locationTable[$i][1]){
-				$this->locationTable[$i][0] = $this->lastSector += $sectors;
+				$this->locationTable[$i][0] = $this->lastSector + 1;
+				$this->lastSector += $sectors;
 			}
 			fseek($this->filePointer, $this->locationTable[$i][0] << 12);
 			fwrite($this->filePointer, str_pad($chunk, $sectors << 12, "\x00", STR_PAD_RIGHT));