Added a WorldEdit wand item that can be used to select areas with worldedit.

worldedit/init.lua

@@ -36,6 +36,7 @@ load_module(path .. "/visualization.lua")
 load_module(path .. "/serialization.lua")
 load_module(path .. "/code.lua")
 load_module(path .. "/compatibility.lua")
+load_module(path .. "/wand.lua")
 
 
 if minetest.setting_getbool("log_mods") then

worldedit/wand.lua

@@ -0,0 +1,51 @@
+minetest.register_tool("worldedit:wand", {
+	description = "WorldEdit wand tool. Left-click to set the 1st position, Right-click to set the 2nd position.",
+	groups = {},
+	inventory_image = "worldedit_wand.png",
+	wield_image = "",
+	wield_scale = {x=1,y=1,z=1},
+	stack_max = 1, -- there is no need to have more than one
+	liquids_pointable = true, -- ground with only water on can be selected as well
+	-- the tool_capabilities are completely irrelevant here - no need to dig
+	tool_capabilities = {
+		full_punch_interval = 1.0,
+		max_drop_level=0,
+		groupcaps={
+			fleshy={times={[2]=0.80, [3]=0.40}, maxwear=0.05, maxlevel=1},
+			snappy={times={[2]=0.80, [3]=0.40}, maxwear=0.05, maxlevel=1},
+			choppy={times={[3]=0.90}, maxwear=0.05, maxlevel=0}
+		}
+	},
+	node_placement_prediction = nil,
+
+	on_use = function(itemstack, placer, pointed_thing)
+	   if placer ~= nil and pointed_thing ~= nil then
+		  local name = placer:get_player_name()
+		  local pos  = minetest.get_pointed_thing_position( pointed_thing, false ) -- not above
+
+		  if not pos then
+			 return itemstack
+		  end
+
+		  worldedit.pos1[name] = pos
+		  worldedit.mark_pos1(name)
+
+	   end
+	   return itemstack -- nothing consumed, nothing changed
+	end,
+
+	on_place = function(itemstack, placer, pointed_thing) -- Left Click
+	   if placer ~= nil and pointed_thing ~= nil then
+		  local name = placer:get_player_name()
+		  local pos  = minetest.get_pointed_thing_position( pointed_thing, false ) -- not above
+
+		  if not pos then
+			 return itemstack
+		  end
+
+		  worldedit.pos2[name] = pos
+		  worldedit.mark_pos2(name)
+	   end
+	   return itemstack -- nothing consumed, nothing changed
+	end,
+})