From b941e21d4d31205374a88843b69b4e0f8c343be4 Mon Sep 17 00:00:00 2001
From: sk89q <the.sk89q@gmail.com>
Date: Sat, 5 Apr 2014 21:49:03 -0700
Subject: [PATCH] Added NullExtent that drops changes.

---
 .../sk89q/worldedit/extent/NullExtent.java    | 68 +++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 src/main/java/com/sk89q/worldedit/extent/NullExtent.java

diff --git a/src/main/java/com/sk89q/worldedit/extent/NullExtent.java b/src/main/java/com/sk89q/worldedit/extent/NullExtent.java
new file mode 100644
index 000000000..f291bc2f2
--- /dev/null
+++ b/src/main/java/com/sk89q/worldedit/extent/NullExtent.java
@@ -0,0 +1,68 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.extent;
+
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldedit.WorldEditException;
+import com.sk89q.worldedit.blocks.BaseBlock;
+import com.sk89q.worldedit.function.operation.Operation;
+
+import javax.annotation.Nullable;
+
+/**
+ * An extent that returns air blocks for all blocks and does not
+ * pass on any changes.
+ */
+public class NullExtent implements Extent {
+
+    private final Vector nullPoint = new Vector(0, 0, 0);
+
+    @Override
+    public Vector getMinimumPoint() {
+        return nullPoint;
+    }
+
+    @Override
+    public Vector getMaximumPoint() {
+        return nullPoint;
+    }
+
+    @Override
+    public BaseBlock getBlock(Vector position) {
+        return new BaseBlock(0);
+    }
+
+    @Override
+    public BaseBlock getLazyBlock(Vector position) {
+        return new BaseBlock(0);
+    }
+
+    @Override
+    public boolean setBlock(Vector position, BaseBlock block) throws WorldEditException {
+        return false;
+    }
+
+    @Nullable
+    @Override
+    public Operation commit() {
+        return null;
+    }
+
+}