From 6a162a426998f88b5280d8f1a24b9e131921eb5b Mon Sep 17 00:00:00 2001
From: sk89q <the.sk89q>
Date: Fri, 24 Aug 2012 16:10:18 -0700
Subject: [PATCH] Fixed foundation class Block not taking -1 as a valid data
 value (used for wildcard matching of the data value).

---
 .../java/com/sk89q/worldedit/foundation/Block.java | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/sk89q/worldedit/foundation/Block.java b/src/main/java/com/sk89q/worldedit/foundation/Block.java
index a155f3198..464ad2173 100644
--- a/src/main/java/com/sk89q/worldedit/foundation/Block.java
+++ b/src/main/java/com/sk89q/worldedit/foundation/Block.java
@@ -156,8 +156,8 @@ public class Block implements TileEntityBlock {
                             + data + " given)");
         }
         
-        if (data < 0) {
-            throw new IllegalArgumentException("Can't have a block data value below 0");
+        if (data < -1) {
+            throw new IllegalArgumentException("Can't have a block data value below -1");
         }
         
         this.data = (short) data;
@@ -176,6 +176,16 @@ public class Block implements TileEntityBlock {
         setData(data);
     }
     
+    /**
+     * Returns whether the data value is -1, indicating that this block is to be
+     * used as a wildcard matching block.
+     * 
+     * @return true if the data value is -1
+     */
+    public boolean hasWildcardData() {
+        return getData() == -1;
+    }
+    
     @Override
     public boolean hasNbtData() {
         return getNbtData() != null;