Make placeholders not pointable

Thanks to entuland for the Rhotator facedir to matrix and matrix to facedir code, which helped creating the tables.

ChatCommands.md

@@ -121,14 +121,16 @@ Set the current WorldEdit region to `<node>`.
 
 Set the param2 value of all nodes in the current WorldEdit region to `<param2>`.
 
-### `//mix <node1> ...`
+### `//mix <node1> [<count1>] <node2> [<count2>]...`
 
-Fill the current WorldEdit region with a random mix of `<node1>`, `...`.
+Fill the current WorldEdit region with a random mix of `<node1>`, `<node2>`, `...`. Weightings can be optionally specified via a number after a node name.
 
     //mix air
     //mix cactus stone glass sandstone
     //mix Bronze
     //mix default:cobble air
+    //mix stone 3 dirt 2
+    //mix cobblestone 8 stoneblock 2 stonebrick
 
 ### `//replace <search node> <replace node>`
 
@@ -283,13 +285,13 @@ Stack the current WorldEdit region `<count>` times by offset `<x>`, `<y>`, `<z>`
     //stack2 5 3 8 2
     //stack2 1 -1 -1 -1
 
-### `//scale <factor>`
+### `//stretch <stretchx> <stretchy> <stretchz>`
 
-Scale the current WorldEdit positions and region by a factor of positive integer `<factor>` with position 1 as the origin.
+Scale the current WorldEdit positions and region by a factor of `<stretchx>`, `<stretchy>`, `<stretchz>` along the X, Y, and Z axes, repectively, with position 1 as the origin.
 
-    //scale 2
-    //scale 1
-    //scale 10
+    //stretch 2 2 2
+    //stretch 1 2 1
+    //stretch 10 20 1
 
 ### `//transpose x/y/z/? x/y/z/?`
 
@@ -463,3 +465,14 @@ Contracts the selection in all directions by `<amount>`. If specified, the selec
 or vertically in the y axis `[v]`.
 
 		//outset v 5
+
+### `//brush none/<command> [parameters]`
+
+Assigns the given `<command>` to the currently held brush item, it will be ran with the first pointed solid node (as determined via raycast) as
+WorldEdit position 1 when using that specific brush item.
+Passing `none` instead clears the command assigned to the currently held brush item.
+Note that this functionality requires the `worldedit_brush` mod enabled.
+
+		//brush cube 8 8 8 Cobblestone
+		//brush spr 12 glass
+		//brush none

WorldEdit API.md

@@ -193,7 +193,7 @@ Returns the number of nodes restored.
 
 Serialization
 -------------
-Contained in serialization.lua, this module allows regions of nodes to be serialized and deserialized to formats suitable for use outside MineTest.
+Contained in serialization.lua, this module allows regions of nodes to be serialized and deserialized to formats suitable for use outside Minetest.
 
 ### version, extra_fields, content = worldedit.read_header(value)
 

worldedit/init.lua

@@ -42,7 +42,7 @@ load_module(path .. "/compatibility.lua")
 load_module(path .. "/cuboid.lua")
 
 
-if minetest.setting_getbool("log_mods") then
+if minetest.settings:get_bool("log_mods") then
 	print("[WorldEdit] Loaded!")
 end
 

worldedit/manipulations.lua

@@ -301,7 +301,7 @@ function worldedit.stack(pos1, pos2, axis, count)
 	local amount = 0
 	local copy = worldedit.copy
 	local i = 1
-	function next_one()
+	local function next_one()
 		if i <= count then
 			i = i + 1
 			amount = amount + length
@@ -529,20 +529,22 @@ end
 -- @param pos2
 -- @param angle Angle in degrees (90 degree increments only).
 -- @return The number of nodes oriented.
--- TODO: Support 6D facedir rotation along arbitrary axis.
 function worldedit.orient(pos1, pos2, angle)
 	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
 	local registered_nodes = minetest.registered_nodes
 
 	local wallmounted = {
-		[90]  = {[0]=0, 1, 5, 4, 2, 3},
-		[180] = {[0]=0, 1, 3, 2, 5, 4},
-		[270] = {[0]=0, 1, 4, 5, 3, 2}
+		[90]  = {0, 1, 5, 4, 2, 3, 0, 0},
+		[180] = {0, 1, 3, 2, 5, 4, 0, 0},
+		[270] = {0, 1, 4, 5, 3, 2, 0, 0}
 	}
 	local facedir = {
-		[90]  = {[0]=1, 2, 3, 0},
-		[180] = {[0]=2, 3, 0, 1},
-		[270] = {[0]=3, 0, 1, 2}
+		[90]  = { 1,  2,  3,  0, 13, 14, 15, 12, 17, 18, 19, 16,
+				  9, 10, 11,  8,  5,  6,  7,  4, 23, 20, 21, 22},
+		[180] = { 2,  3,  0,  1, 10, 11,  8,  9,  6,  7,  4,  5,
+				 18, 19, 16, 17, 14, 15, 12, 13, 22, 23, 20, 21},
+		[270] = { 3,  0,  1,  2, 19, 16, 17, 18, 15, 12, 13, 14,
+				  7,  4,  5,  6, 11,  8,  9, 10, 21, 22, 23, 20}
 	}
 
 	angle = angle % 360
@@ -558,8 +560,7 @@ function worldedit.orient(pos1, pos2, angle)
 	worldedit.keep_loaded(pos1, pos2)
 
 	local count = 0
-	local set_node, get_node, get_meta, swap_node = minetest.set_node,
-			minetest.get_node, minetest.get_meta, minetest.swap_node
+	local get_node, swap_node = minetest.get_node, minetest.swap_node
 	local pos = {x=pos1.x, y=0, z=0}
 	while pos.x <= pos2.x do
 		pos.y = pos1.y
@@ -569,17 +570,20 @@ function worldedit.orient(pos1, pos2, angle)
 				local node = get_node(pos)
 				local def = registered_nodes[node.name]
 				if def then
-					if def.paramtype2 == "wallmounted" then
-						node.param2 = wallmounted_substitution[node.param2]
-						local meta = get_meta(pos):to_table()
-						set_node(pos, node)
-						get_meta(pos):from_table(meta)
+					local paramtype2 = def.paramtype2
+					if paramtype2 == "wallmounted" or
+							paramtype2 == "colorwallmounted" then
+						local orient = node.param2 % 8
+						node.param2 = node.param2 - orient +
+								wallmounted_substitution[orient + 1]
+						swap_node(pos, node)
 						count = count + 1
-					elseif def.paramtype2 == "facedir" then
-						node.param2 = facedir_substitution[node.param2]
-						local meta = get_meta(pos):to_table()
-						set_node(pos, node)
-						get_meta(pos):from_table(meta)
+					elseif paramtype2 == "facedir" or
+							paramtype2 == "colorfacedir" then
+						local orient = node.param2 % 32
+						node.param2 = node.param2 - orient +
+								facedir_substitution[orient + 1]
+						swap_node(pos, node)
 						count = count + 1
 					end
 				end

worldedit/primitives.lua

@@ -208,12 +208,13 @@ function worldedit.pyramid(pos, axis, height, node_name, hollow)
 	local other1, other2 = worldedit.get_axis_others(axis)
 
 	-- Set up voxel manipulator
-	local manip, area = mh.init_axis_radius(pos, axis,
-			height >= 0 and height or -height)
+	-- FIXME: passing negative <radius> causes mis-sorted pos to be passed
+	-- into mh.init() which is technically not allowed but works
+	local manip, area = mh.init_axis_radius(pos, axis, height)
 	local data = mh.get_empty_data(area)
 
 	-- Handle inverted pyramids
-	local start_axis, end_axis, step
+	local step
 	if height > 0 then
 		height = height - 1
 		step = 1

worldedit/serialization.lua

@@ -56,10 +56,19 @@ function worldedit.serialize(pos1, pos2)
 
 	worldedit.keep_loaded(pos1, pos2)
 
+	local get_node, get_meta, hash_node_position =
+		minetest.get_node, minetest.get_meta, minetest.hash_node_position
+
+	-- Find the positions which have metadata
+	local has_meta = {}
+	local meta_positions = minetest.find_nodes_with_meta(pos1, pos2)
+	for i = 1, #meta_positions do
+		has_meta[hash_node_position(meta_positions[i])] = true
+	end
+
 	local pos = {x=pos1.x, y=0, z=0}
 	local count = 0
 	local result = {}
-	local get_node, get_meta = minetest.get_node, minetest.get_meta
 	while pos.x <= pos2.x do
 		pos.y = pos1.y
 		while pos.y <= pos2.y do
@@ -68,20 +77,19 @@ function worldedit.serialize(pos1, pos2)
 				local node = get_node(pos)
 				if node.name ~= "air" and node.name ~= "ignore" then
 					count = count + 1
-					local meta = get_meta(pos):to_table()
 
-					local meta_empty = true
-					-- Convert metadata item stacks to item strings
-					for name, inventory in pairs(meta.inventory) do
-						for index, stack in ipairs(inventory) do
-							meta_empty = false
-							inventory[index] = stack.to_string and stack:to_string() or stack
-						end
-					end
-					for k in pairs(meta) do
-						if k ~= "inventory" then
-							meta_empty = false
-							break
+					local meta
+					if has_meta[hash_node_position(pos)] then
+						meta = get_meta(pos):to_table()
+
+						-- Convert metadata item stacks to item strings
+						for _, invlist in pairs(meta.inventory) do
+							for index = 1, #invlist do
+								local itemstack = invlist[index]
+								if itemstack.to_string then
+									invlist[index] = itemstack:to_string()
+								end
+							end
 						end
 					end
 
@@ -92,7 +100,7 @@ function worldedit.serialize(pos1, pos2)
 						name = node.name,
 						param1 = node.param1 ~= 0 and node.param1 or nil,
 						param2 = node.param2 ~= 0 and node.param2 or nil,
-						meta = not meta_empty and meta or nil,
+						meta = meta,
 					}
 				end
 				pos.z = pos.z + 1
@@ -188,7 +196,7 @@ end
 -- @return The number of nodes.
 function worldedit.allocate(origin_pos, value)
 	local nodes = load_schematic(value)
-	if not nodes then return nil end
+	if not nodes or #nodes == 0 then return nil end
 	return worldedit.allocate_with_nodes(origin_pos, nodes)
 end
 
@@ -219,6 +227,7 @@ end
 function worldedit.deserialize(origin_pos, value)
 	local nodes = load_schematic(value)
 	if not nodes then return nil end
+	if #nodes == 0 then return #nodes end
 
 	local pos1, pos2 = worldedit.allocate_with_nodes(origin_pos, nodes)
 	worldedit.keep_loaded(pos1, pos2)

worldedit/visualization.lua

@@ -6,6 +6,7 @@ minetest.register_node("worldedit:placeholder", {
 	paramtype = "light",
 	sunlight_propagates = true,
 	diggable = false,
+	pointable = false,
 	walkable = false,
 	groups = {not_in_creative_inventory=1},
 })

worldedit_brush/depends.txt

@@ -0,0 +1,2 @@
+worldedit
+worldedit_commands

worldedit_brush/init.lua

@@ -0,0 +1,161 @@
+local modname = minetest.get_current_modname()
+
+-- check compatibility
+if minetest.raycast == nil then
+	function log_unavailable_error()
+		minetest.log("error",
+			"[MOD] " .. modname .. " is not compatible with current game version, " ..
+			"you can disable it in the game settings!"
+		)
+		minetest.log("verbose",
+			"[MOD] " .. modname .. " requires a suitable version of 0.4.16-dev or higher, " ..
+			"that includes support for minetest.raycast() [since 7th July 2017]"
+		)
+	end
+
+	if minetest.is_singleplayer() then
+		-- delay message until player is connected
+		minetest.register_on_joinplayer(log_unavailable_error)
+	else
+		log_unavailable_error()
+	end
+
+	-- exit here / do not load this mod
+	return
+end
+
+local BRUSH_MAX_DIST = 150
+local BRUSH_ALLOWED_COMMANDS = {
+	-- basically everything that only needs pos1
+	"cube",
+	"cylinder",
+	"dome",
+	"hollowcube",
+	"hollowcylinder",
+	"hollowdome",
+	"hollowpyramid",
+	"hollowsphere",
+	"load",
+	"pyramid",
+	"sphere",
+	"spiral",
+
+	"cyl",
+	"do",
+	"hcube",
+	"hcyl",
+	"hdo",
+	"hpyr",
+	"hspr",
+	"l",
+	"pyr",
+	"spr",
+	"spl",
+}
+local brush_on_use = function(itemstack, placer)
+	local meta = itemstack:get_meta()
+	local name = placer:get_player_name()
+
+	local cmd = meta:get_string("command")
+	if cmd == "" then
+		worldedit.player_notify(name,
+			"This brush is not bound, use //brush to bind a command to it.")
+		return false
+	end
+	local cmddef = minetest.registered_chatcommands["/" .. cmd]
+	if cmddef == nil then return false end -- shouldn't happen as //brush checks this
+	local has_privs, missing_privs = minetest.check_player_privs(name, cmddef.privs)
+	if not has_privs then
+		worldedit.player_notify(name,
+			"Missing privileges: " .. table.concat(missing_privs, ", "))
+		return false
+	end
+
+	local raybegin = vector.add(placer:get_pos(), {x=0, y=2, z=0}) -- player head
+	local rayend = vector.add(raybegin, vector.multiply(placer:get_look_dir(), BRUSH_MAX_DIST))
+	local ray = minetest.raycast(raybegin, rayend, false, true)
+	local pointed_thing = ray:next()
+	if pointed_thing == nil then
+		worldedit.player_notify(name, "Too far away.")
+		return false
+	end
+
+	assert(pointed_thing.type == "node")
+	worldedit.pos1[name] = pointed_thing.under
+	worldedit.pos2[name] = nil
+	worldedit.mark_region(name)
+	-- is this a horrible hack? oh yes.
+	worldedit._override_safe_regions = true
+	local player_notify_old = worldedit.player_notify
+	worldedit.player_notify = function(name, msg)
+		if string.match(msg, "^%d") then return end -- discard "1234 nodes added."
+		return player_notify_old(name, msg)
+	end
+
+	minetest.log("action", string.format("%s uses WorldEdit brush (//%s) at %s",
+		name, cmd, minetest.pos_to_string(pointed_thing.under)))
+	cmddef.func(name, meta:get_string("params"))
+
+	worldedit._override_safe_regions = false
+	worldedit.player_notify = player_notify_old
+	return true
+end
+
+minetest.register_tool(":worldedit:brush", {
+	description = "WorldEdit Brush",
+	inventory_image = "worldedit_brush.png",
+	stack_max = 1, -- no need to stack these (metadata prevents this anyway)
+	range = 0,
+	on_use = function(itemstack, placer, pointed_thing)
+		brush_on_use(itemstack, placer)
+		return itemstack -- nothing consumed, nothing changed
+	end,
+})
+
+minetest.register_chatcommand("/brush", {
+	privs = {worldedit=true},
+	params = "none/<cmd> [parameters]",
+	description = "Assign command to WorldEdit brush item",
+	func = function(name, param)
+		local found, _, cmd, params = param:find("^([^%s]+)%s+(.+)$")
+		if not found then
+			params = ""
+			found, _, cmd = param:find("^(.+)$")
+		end
+		if not found then
+			worldedit.player_notify(name, "Invalid usage.")
+			return
+		end
+
+		local itemstack = minetest.get_player_by_name(name):get_wielded_item()
+		if itemstack == nil or itemstack:get_name() ~= "worldedit:brush" then
+			worldedit.player_notify(name, "Not holding brush item.")
+			return
+		end
+
+		cmd = cmd:lower()
+		local meta = itemstack:get_meta()
+		if cmd == "none" then
+			meta:from_table(nil)
+			worldedit.player_notify(name, "Brush assignment cleared.")
+		else
+			local cmddef
+			if table.indexof(BRUSH_ALLOWED_COMMANDS, cmd) ~= -1 then
+				cmddef = minetest.registered_chatcommands["/" .. cmd]
+			else
+				cmddef = nil
+			end
+			if cmddef == nil then
+				worldedit.player_notify(name, "Invalid command for brush use: //" .. cmd)
+				return
+			end
+			meta:set_string("command", cmd)
+			meta:set_string("params", params)
+			local fullcmd = "//" .. cmd .. " " .. params
+			meta:set_string("description",
+				minetest.registered_tools["worldedit:brush"].description .. ": " .. fullcmd)
+			worldedit.player_notify(name, "Brush assigned to command: " .. fullcmd)
+		end
+		minetest.get_player_by_name(name):set_wielded_item(itemstack)
+	end,
+})

worldedit_commands/init.lua

@@ -108,9 +108,9 @@ end
 
 minetest.register_chatcommand("/about", {
 	params = "",
-	description = "Get information about the mod",
+	description = "Get information about the WorldEdit mod",
 	func = function(name, param)
-		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/")
+		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,
 })
 
@@ -203,7 +203,7 @@ minetest.register_on_punchnode(function(pos, node, puncher)
 	local name = puncher:get_player_name()
 	if worldedit.inspect[name] then
 		local axis, sign = worldedit.player_axis(name)
-		message = string.format("inspector: %s at %s (param1=%d, param2=%d, received light=%d) punched facing the %s axis",
+		local message = string.format("inspector: %s at %s (param1=%d, param2=%d, received light=%d) punched facing the %s axis",
 			node.name, minetest.pos_to_string(pos), node.param1, node.param2, get_node_rlight(pos), axis .. (sign > 0 and "+" or "-"))
 		worldedit.player_notify(name, message)
 	end
@@ -425,15 +425,22 @@ minetest.register_chatcommand("/param2", {
 })
 
 minetest.register_chatcommand("/mix", {
-	params = "<node1> ...",
+	params = "<node1> [<weighting1>] [<node2> [<weighting2>]] ...",
 	description = "Fill the current WorldEdit region with a random mix of <node1>, ...",
 	privs = {worldedit=true},
 	func = safe_region(function(name, param)
 		local nodes = {}
 		for nodename in param:gmatch("[^%s]+") do
-			local node = get_node(name, nodename)
-			if not node then return end
-			nodes[#nodes + 1] = node
+			if tonumber(nodename) ~= nil and #nodes > 0 then
+				local last_node = nodes[#nodes]
+				for i = 1, tonumber(nodename) do
+					nodes[#nodes + 1] = last_node
+				end
+			else
+				local node = get_node(name, nodename)
+				if not node then return end
+				nodes[#nodes + 1] = node
+			end
 		end
 
 		local pos1, pos2 = worldedit.pos1[name], worldedit.pos2[name]
@@ -642,6 +649,7 @@ minetest.register_chatcommand("/hollowcylinder", {
 		end
 		length = tonumber(length)
 		if axis == "?" then
+			local sign
 			axis, sign = worldedit.player_axis(name)
 			length = length * sign
 		end
@@ -665,6 +673,7 @@ minetest.register_chatcommand("/cylinder", {
 		end
 		length = tonumber(length)
 		if axis == "?" then
+			local sign
 			axis, sign = worldedit.player_axis(name)
 			length = length * sign
 		end
@@ -698,6 +707,7 @@ minetest.register_chatcommand("/hollowpyramid", {
 		local found, _, axis, height, nodename = param:find("^([xyz%?])%s+([+-]?%d+)%s+(.+)$")
 		height = tonumber(height)
 		if axis == "?" then
+			local sign
 			axis, sign = worldedit.player_axis(name)
 			height = height * sign
 		end
@@ -715,6 +725,7 @@ minetest.register_chatcommand("/pyramid", {
 		local found, _, axis, height, nodename = param:find("^([xyz%?])%s+([+-]?%d+)%s+(.+)$")
 		height = tonumber(height)
 		if axis == "?" then
+			local sign
 			axis, sign = worldedit.player_axis(name)
 			height = height * sign
 		end
@@ -762,6 +773,7 @@ minetest.register_chatcommand("/copy", {
 		end
 		amount = tonumber(amount)
 		if axis == "?" then
+			local sign
 			axis, sign = worldedit.player_axis(name)
 			amount = amount * sign
 		end
@@ -788,6 +800,7 @@ minetest.register_chatcommand("/move", {
 		end
 		amount = tonumber(amount)
 		if axis == "?" then
+			local sign
 			axis, sign = worldedit.player_axis(name)
 			amount = amount * sign
 		end
@@ -810,6 +823,7 @@ minetest.register_chatcommand("/stack", {
 		local found, _, axis, repetitions = param:find("^([xyz%?])%s+([+-]?%d+)$")
 		repetitions = tonumber(repetitions)
 		if axis == "?" then
+			local sign
 			axis, sign = worldedit.player_axis(name)
 			repetitions = repetitions * sign
 		end
@@ -891,9 +905,12 @@ minetest.register_chatcommand("/stretch", {
 		stretchx, stretchy, stretchz = tonumber(stretchx), tonumber(stretchy), tonumber(stretchz)
 		if stretchx == 0 or stretchy == 0 or stretchz == 0 then
 			worldedit.player_notify(name, "invalid scaling factors: " .. param)
+			return nil
 		end
 		local count = check_region(name, param)
-		if count then return tonumber(stretchx) * tonumber(stretchy) * tonumber(stretchz) * count end
+		if count then
+			return stretchx * stretchy * stretchz * count
+		end
 		return nil
 	end),
 })
@@ -1146,9 +1163,15 @@ minetest.register_chatcommand("/allocate", {
 			return
 		elseif version > worldedit.LATEST_SERIALIZATION_VERSION then
 			worldedit.player_notify(name, "File was created with newer version of WorldEdit!")
+			return
 		end
 		local nodepos1, nodepos2, count = worldedit.allocate(pos, value)
 
+		if not nodepos1 then
+			worldedit.player_notify(name, "Schematic empty, nothing allocated")
+			return
+		end
+
 		worldedit.pos1[name] = nodepos1
 		worldedit.mark_pos1(name)
 		worldedit.pos2[name] = nodepos2

worldedit_commands/safe.lua

@@ -1,6 +1,8 @@
 local safe_region_callback = {}
 local safe_region_param = {}
 
+worldedit._override_safe_regions = false -- internal use ONLY!
+
 local function check_region(name, param)
 	local pos1, pos2 = worldedit.pos1[name], worldedit.pos2[name] --obtain positions
 	if pos1 == nil or pos2 == nil then
@@ -20,7 +22,7 @@ local function safe_region(callback, nodes_needed)
 		--check if the operation applies to a safe number of nodes
 		local count = nodes_needed(name, param)
 		if count == nil then return end --invalid command
-		if count < 10000 then
+		if worldedit._override_safe_regions or count < 10000 then
 			return callback(name, param)
 		end
 
@@ -44,20 +46,21 @@ minetest.register_chatcommand("/y", {
 			return
 		end
 
-		safe_region_callback[name], safe_region_param[name] = nil, nil --reset pending operation
+		reset_pending(name)
 		callback(name, param)
 	end,
 })
 
 minetest.register_chatcommand("/n", {
 	params = "",
-	description = "Confirm a pending operation",
+	description = "Abort a pending operation",
 	func = function(name)
 		if not safe_region_callback[name] then
 			worldedit.player_notify(name, "no operation pending")
 			return
 		end
-		safe_region_callback[name], safe_region_param[name] = nil, nil
+
+		reset_pending(name)
 	end,
 })
 

worldedit_commands/wand.lua

@@ -1,3 +1,11 @@
+local function above_or_under(placer, pointed_thing)
+	if placer:get_player_control().sneak then
+		return pointed_thing.above
+	else
+		return pointed_thing.under
+	end
+end
+
 minetest.register_tool(":worldedit:wand", {
 	description = "WorldEdit Wand tool, Left-click to set 1st position, right-click to set 2nd",
 	inventory_image = "worldedit_wand.png",
@@ -7,7 +15,7 @@ minetest.register_tool(":worldedit:wand", {
 	on_use = function(itemstack, placer, pointed_thing)
 		if placer ~= nil and pointed_thing ~= nil and pointed_thing.type == "node" then
 			local name = placer:get_player_name()
-			worldedit.pos1[name] = pointed_thing.under
+			worldedit.pos1[name] = above_or_under(placer, pointed_thing)
 			worldedit.mark_pos1(name)
 		end
 		return itemstack -- nothing consumed, nothing changed
@@ -16,7 +24,7 @@ minetest.register_tool(":worldedit:wand", {
 	on_place = function(itemstack, placer, pointed_thing) -- Left Click
 		if placer ~= nil and pointed_thing ~= nil and pointed_thing.type == "node" then
 			local name = placer:get_player_name()
-			worldedit.pos2[name] = pointed_thing.under
+			worldedit.pos2[name] = above_or_under(placer, pointed_thing)
 			worldedit.mark_pos2(name)
 		end
 		return itemstack -- nothing consumed, nothing changed

worldedit_gui/depends.txt

@@ -4,3 +4,4 @@ unified_inventory?
 inventory_plus?
 sfinv?
 creative?
+smart_inventory?

worldedit_gui/init.lua

@@ -134,6 +134,55 @@ elseif rawget(_G, "inventory_plus") then --inventory++ installed
 			inventory_plus.set_inventory_formspec(player, get_formspec(name, page))
 		end
 	end
+elseif rawget(_G, "smart_inventory") then -- smart_inventory installed
+	-- redefinition: Update the code element on inventory page to show the we-page
+	function worldedit.show_page(name, page)
+		local state = smart_inventory.get_page_state("worldedit_gui", name)
+		if state then
+			state:get("code"):set_we_formspec(page)
+			state.location.rootState:show() -- update inventory page
+		end
+	end
+
+	-- smart_inventory page callback. Contains just a "custom code" element
+	local function smart_worldedit_gui_callback(state)
+		local codebox = state:element("code", { name = "code", code = "" })
+		function codebox:set_we_formspec(we_page)
+			local new_formspec = get_formspec(state.location.rootState.location.player, we_page)
+			new_formspec = new_formspec:gsub('button_exit','button') --no inventory closing
+			self.data.code = "container[1,1]".. new_formspec .. "container_end[]"
+		end
+		codebox:set_we_formspec("worldedit_gui")
+
+		-- process input (the back button)
+		state:onInput(function(state, fields, player)
+			if fields.worldedit_gui then --main page
+				state:get("code"):set_we_formspec("worldedit_gui")
+			elseif fields.worldedit_gui_exit then --return to original page
+				state:get("code"):set_we_formspec("worldedit_gui")
+				state.location.parentState:get("crafting_button"):submit() -- switch to the crafting tab
+			end
+		end)
+	end
+
+	-- all handler should return false to force inventory UI update
+	local orig_register_gui_handler = worldedit.register_gui_handler
+	worldedit.register_gui_handler = function(identifier, handler)
+		local wrapper = function(...)
+			handler(...)
+			return false
+		end
+		orig_register_gui_handler(identifier, wrapper)
+	end
+
+	-- register the inventory button
+	smart_inventory.register_page({
+		name = "worldedit_gui",
+		tooltip = "Edit your World!",
+		icon = "inventory_plus_worldedit_gui.png",
+		smartfs_callback = smart_worldedit_gui_callback,
+		sequence = 99
+	})
 elseif rawget(_G, "sfinv") then --sfinv installed (part of minetest_game since 0.4.15)
 	assert(sfinv.enabled)
 	local orig_get = sfinv.pages["sfinv:crafting"].get