Created pattern, mask, and block registries.

Deprecated getBlock, getBlockPattern, and so-on in WorldEdit.

src/main/java/com/sk89q/worldedit/extent/Extent.java

@@ -19,6 +19,8 @@
 
 package com.sk89q.worldedit.extent;
 
+import com.sk89q.worldedit.Vector;
+
 /**
  * A world, portion of a world, clipboard, or other object that can have blocks
  * set or entities placed.
@@ -27,4 +29,25 @@ package com.sk89q.worldedit.extent;
  * @see OutputExtent the set____() portion
  */
 public interface Extent extends InputExtent, OutputExtent {
+
+    /**
+     * Get the minimum point in the extent.
+     * </p>
+     * If the extent is unbounded, then a large (negative) value may
+     * be returned.
+     *
+     * @return the minimum point
+     */
+    Vector getMinimumPoint();
+
+    /**
+     * Get the maximum point in the extent.
+     * </p>
+     * If the extent is unbounded, then a large (positive) value may
+     * be returned.
+     *
+     * @return the maximum point
+     */
+    Vector getMaximumPoint();
+
 }

src/main/java/com/sk89q/worldedit/extent/ExtentDelegate.java

@@ -70,6 +70,16 @@ public class ExtentDelegate implements Extent {
         return extent.setBlock(location, block);
     }
 
+    @Override
+    public Vector getMinimumPoint() {
+        return extent.getMinimumPoint();
+    }
+
+    @Override
+    public Vector getMaximumPoint() {
+        return extent.getMaximumPoint();
+    }
+
     protected Operation commitBefore() {
         return null;
     }
@@ -88,4 +98,5 @@ public class ExtentDelegate implements Extent {
             return null;
         }
     }
+
 }