From 00e6a3aa65e1bd534149b0600d3820a97615c55a Mon Sep 17 00:00:00 2001
From: snaxson <snax@users.sourceforge.net>
Date: Sun, 5 Aug 2012 22:41:48 -0700
Subject: [PATCH] Fix loading schematic files with block data values >127

Minecraft 1.3 introduces several blocks with data values
over 127, such as sandstone stairs (128).  Since byte
is signed, implicit conversion to short results in
negative block data values that cause later IndexOutOfBounds
exceptions.  This change explicitly masks off the extended
sign bits so the result is positive.
---
 .../com/sk89q/worldedit/schematic/MCEditSchematicFormat.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/sk89q/worldedit/schematic/MCEditSchematicFormat.java b/src/main/java/com/sk89q/worldedit/schematic/MCEditSchematicFormat.java
index 44abfa99f..cc932076e 100644
--- a/src/main/java/com/sk89q/worldedit/schematic/MCEditSchematicFormat.java
+++ b/src/main/java/com/sk89q/worldedit/schematic/MCEditSchematicFormat.java
@@ -121,7 +121,7 @@ public class MCEditSchematicFormat extends SchematicFormat {
             }
         } else {
             for (int i = 0; i < rawBlocks.length; ++i) {
-                blocks[i] = rawBlocks[i];
+                blocks[i] = (short) (rawBlocks[i] & 0xFF);
             }
         }