From ac7430e02fe0d8dfcef08ab4eda4877241b332df Mon Sep 17 00:00:00 2001
From: Uberi <azhang9@gmail.com>
Date: Tue, 10 Dec 2013 01:47:32 -0500
Subject: [PATCH] Version information is now available via the API.

---
 WorldEdit API.md            | 13 ++++++++++++-
 worldedit/init.lua          |  4 ++++
 worldedit_commands/init.lua |  8 ++++----
 3 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/WorldEdit API.md b/WorldEdit API.md
index 22441d2..4169cbe 100644
--- a/WorldEdit API.md	
+++ b/WorldEdit API.md	
@@ -6,13 +6,24 @@ If needed, individual modules such as visualization.lua can be removed without a
 
 For more information, see the [README](README.md).
 
+General
+-------
+
+### value = worldedit.version
+
+Contains the current version of WorldEdit in a table of the form `{major=MAJOR_INTEGER, minor=MINOR_INTEGER}`, where `MAJOR_INTEGER` is the major version (the number before the period) as an integer, and `MINOR_INTEGER` is the minor version (the number after the period) as an integer. This is intended for version checking purposes.
+
+### value = worldedit.version_string
+
+Contains the current version of WorldEdit in the form of a string `"MAJOR_INTEGER.MINOR_INTEGER"`, where `MAJOR_INTEGER` is the major version (the number before the period) as an integer, and `MINOR_INTEGER` is the minor version (the number after the period) as an integer. This is intended for display purposes.
+
 Manipulations
 -------------
 Contained in manipulations.lua, this module allows several node operations to be applied over a region.
 
 ### count = worldedit.set(pos1, pos2, nodename)
 
-Sets a region defined by positions `pos1` and `pos2` to `nodename`. To clear to region, use "air" as the value of `nodename`.
+Sets a region defined by positions `pos1` and `pos2` to `nodename`. To clear a region, use "air" as the value of `nodename`.
 
 Returns the number of nodes set.
 
diff --git a/worldedit/init.lua b/worldedit/init.lua
index 6d3efe4..a6361b5 100644
--- a/worldedit/init.lua
+++ b/worldedit/init.lua
@@ -1,3 +1,7 @@
+worldedit = worldedit or {}
+worldedit.version = {major=1, minor=0}
+worldedit.version_string = "1.0"
+
 assert(minetest.get_voxel_manip, string.rep(">", 300) .. "HEY YOU! YES, YOU OVER THERE. THIS VERSION OF WORLDEDIT REQUIRES MINETEST 0.4.8 OR LATER! YOU HAVE AN OLD VERSION." .. string.rep("<", 300))
 
 local path = minetest.get_modpath(minetest.get_current_modname())
diff --git a/worldedit_commands/init.lua b/worldedit_commands/init.lua
index 9977674..3ce26eb 100644
--- a/worldedit_commands/init.lua
+++ b/worldedit_commands/init.lua
@@ -54,7 +54,7 @@ minetest.register_chatcommand("/about", {
 	params = "",
 	description = "Get information about the mod",
 	func = function(name, param)
-		worldedit.player_notify(name, "WorldEdit 1.0 is available on this server. Type /help to get a list of commands, or get more information at https://github.com/Uberi/MineTest-WorldEdit/")
+		worldedit.player_notify(name, "WorldEdit " .. worldedit.version_string .. " is available on this server. Type /help to get a list of commands, or get more information at https://github.com/Uberi/MineTest-WorldEdit/")
 	end,
 })
 
@@ -247,9 +247,9 @@ minetest.register_chatcommand("/volume", {
 		local volume = worldedit.volume(pos1, pos2)
 		local abs = math.abs
 		worldedit.player_notify(name, "current region has a volume of " .. volume .. " nodes ("
-			.. abs(pos2.x - pos1.x) .. "*"
-			.. abs(pos2.y - pos1.y) .. "*"
-			.. abs(pos2.z - pos1.z) .. ")")
+			.. abs(pos2.x - pos1.x) + 1 .. "*"
+			.. abs(pos2.y - pos1.y) + 1 .. "*"
+			.. abs(pos2.z - pos1.z) + 1 .. ")")
 	end,
 })