From 89e18d61080d1ccc4990c82570b1f0672daa8509 Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Sat, 12 Jan 2013 07:59:41 +0100
Subject: [PATCH] Only dig air Nodes

---
 worldedit/manipulations.lua | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/worldedit/manipulations.lua b/worldedit/manipulations.lua
index 02490ff..903a3b7 100644
--- a/worldedit/manipulations.lua
+++ b/worldedit/manipulations.lua
@@ -314,8 +314,10 @@ worldedit.dig = function(pos1, pos2)
 		pos.y = pos1.y
 		while pos.y <= pos2.y do
 			pos.z = pos1.z
-			while pos.z <= pos2.z do
-				env:dig_node(pos)
+			while pos.z <= pos2.z do#
+				local node = env:get_node(pos)
+				if node.name == "air":
+					env:dig_node(pos)
 				pos.z = pos.z + 1
 			end
 			pos.y = pos.y + 1
@@ -323,4 +325,4 @@ worldedit.dig = function(pos1, pos2)
 		pos.x = pos.x + 1
 	end
 	return worldedit.volume(pos1, pos2)
-end
\ No newline at end of file
+end