diff --git a/README.md b/README.md
index 6340aed..fa00562 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,45 @@
+![Scifi nodes](screenshot.png)
+
 # scifi_nodes
-Minetest mod that adds scifi themed nodes
 
-**Adding Recipes for the unfinished scifi_nodes**
+Minetest mod that adds scifi themed blocks, doors, materials, plants and other assets.
 
-** Added support for stairsplus **
+# Changes log
+
+* 14/08/2019 : retrocompatibility fixed (aliases in doors.lua)
+* 13/08/2019 :
+  * added mod option doors_open_with_mesecon_only (default = false)
+  * fixed a bug preventing the option from working
+* 05/09/2019 : door opening on rightclick is disabled (maybe reactivated via a mod option)
+* 05/08/2019 :
+  * digicodes now work
+  * new (and cleaner) implementation for palm scanner
+* 05/05/2019 : added palm_scanner, which emmits mesecon signal when rightclicked by owner
+* 05/01/2019 : create aliases to deal with old namming policy un doors.lua
+* 04/26/2019 :
+  * sliding doors now open with mesecon signal
+  * added blue sliding doors
+  * added digicode node
+  * changed ceiling lights recipe
+  * added some sounds
+* Added Recipes for the unfinished scifi_nodes
+* Added support for stairsplus
 
 # Attributions
 
 CC BY-NC 3.0
 * scifi_nodes_door_normal.ogg tlwmdbt https://freesound.org/people/tlwmdbt/sounds/165862/
 * scifi_nodes_door_mechanic.ogg primeval_polypod https://freesound.org/people/primeval_polypod/sounds/156507/
+* scifi_nodes_digicode.ogg https://freesound.org/people/Robinhood76/sounds/94933/
+* scifi_nodes_switch.ogg http://soundbible.com/1950-Button-Push.html
+* scifi_nodes_palm_scanner.ogg https://freesound.org/people/THE_bizniss/sounds/39313/
+* scifi_nodes_access_granted https://freesound.org/people/TheBuilder15/sounds/415762/
+* scifi_nodes_access_refused https://freesound.org/people/RICHERlandTV/sounds/216090/
 
-Contributors:
-tanmayameher https://github.com/tanmayameher
-naturefreshmilk https://github.com/naturefreshmilk
-acmgit https://github.com/acmgit
-catz85 https://github.com/catz85
-coil0 https://github.com/coil0
+# Contributors:
+
+* tanmayameher https://github.com/tanmayameher
+* naturefreshmilk https://github.com/naturefreshmilk
+* acmgit https://github.com/acmgit
+* catz85 https://github.com/catz85
+* coil0 https://github.com/coil0
diff --git a/crafts.lua b/crafts.lua
index ebc475d..97b34b3 100644
--- a/crafts.lua
+++ b/crafts.lua
@@ -96,11 +96,13 @@ minetest.register_craft({
     }
 })
 
--- 6 ceiling light from 2 plastic and 1  trap super glow glass
+-- 8 ceiling light from 2 plastic and 1 meselamp
+-- Old recipe used "moreblocks:trap_super_glow_glass" 
+-- but moreblocks is an optional dependance
 minetest.register_craft({
-    output = "scifi_nodes:lightbar 6",
+    output = "scifi_nodes:lightbar 8",
     recipe = {
-        {"scifi_nodes:white2", "moreblocks:trap_super_glow_glass", "scifi_nodes:white2"}
+        {"scifi_nodes:white2", "default:meselamp", "scifi_nodes:white2"}
     }
 })
 
diff --git a/depends.txt b/depends.txt
index 95a1e7b..8005f6d 100644
--- a/depends.txt
+++ b/depends.txt
@@ -1,11 +1,10 @@
 default
 basic_materials
+mesecons
 xpanes?
 moreblocks?
-mesecons?
 mesecons_microcontroller?
 mesecons_button?
 mesecons_torch?
 mesecons_receiver?
 dye?
-
diff --git a/doors.lua b/doors.lua
index 2186c6c..8b033b9 100644
--- a/doors.lua
+++ b/doors.lua
@@ -14,323 +14,377 @@
 -- will the authors be held liable for any damages arising from the use of this content.
 
 
+-- Retrieving mod settings
+local scifi_nodes = {}
+scifi_nodes.doors_open_with_mesecon_only = minetest.settings:get_bool("scifi_nodes.doors_open_with_mesecon_only", false)
+
+-- Some aliases to deal with old namming policy --
+minetest.register_alias("scifi_nodes:door1a","scifi_nodes:Doom_door_closed")
+minetest.register_alias("scifi_nodes:door1b","scifi_nodes:Doom_door_closed_top")
+minetest.register_alias("scifi_nodes:door1c","scifi_nodes:Doom_door_opened")
+minetest.register_alias("scifi_nodes:door1d","scifi_nodes:Doom_door_opened_top")
+
+minetest.register_alias("scifi_nodes:door2a","scifi_nodes:black_door_closed")
+minetest.register_alias("scifi_nodes:door2b","scifi_nodes:black_door_closed_top")
+minetest.register_alias("scifi_nodes:door2c","scifi_nodes:black_door_opened")
+minetest.register_alias("scifi_nodes:door2d","scifi_nodes:black_door_opened_top")
+
+minetest.register_alias("scifi_nodes:door3a","scifi_nodes:white_door_closed")
+minetest.register_alias("scifi_nodes:door3b","scifi_nodes:white_door_closed_top")
+minetest.register_alias("scifi_nodes:door3c","scifi_nodes:white_door_opened")
+minetest.register_alias("scifi_nodes:door3d","scifi_nodes:white_door_opened_top")
+
+minetest.register_alias("scifi_nodes:door4a","scifi_nodes:green_door_closed")
+minetest.register_alias("scifi_nodes:door4b","scifi_nodes:green_door_closed_top")
+minetest.register_alias("scifi_nodes:door4c","scifi_nodes:green_door_opened")
+minetest.register_alias("scifi_nodes:door4d","scifi_nodes:green_door_opened_top")
+
+-- This table now uses named parameters and more convenient variables names
 local doors = {
-	-- Black door
-	{"scifi_nodes:door2a","scifi_nodes:door2b","scifi_nodes:door2c","scifi_nodes:door2d","2","black", "doors:door_steel", "scifi_nodes_door_mechanic"},
-	-- White door
-	{"scifi_nodes:door3a","scifi_nodes:door3b","scifi_nodes:door3c","scifi_nodes:door3d","3","white", "doors:door_glass", "scifi_nodes_door_normal"},
-	-- Green door
-	{"scifi_nodes:door4a","scifi_nodes:door4b","scifi_nodes:door4c","scifi_nodes:door4d","4","green", "doors:door_wood", "scifi_nodes_door_mechanic"},
-	-- DOOM door
-	{"scifi_nodes:door1a","scifi_nodes:door1b","scifi_nodes:door1c","scifi_nodes:door1d","1","Doom", "doors:door_obsidian_glass", "scifi_nodes_door_mechanic"}
+	{base_name = "Doom", base_ingredient =  "doors:door_obsidian_glass", sound = "scifi_nodes_door_mechanic"},
+	{base_name = "black", base_ingredient = "doors:door_steel", sound = "scifi_nodes_door_mechanic"},
+	{base_name = "white", base_ingredient = "doors:door_glass", sound = "scifi_nodes_door_normal"},
+	{base_name = "green", base_ingredient = "doors:door_wood", sound = "scifi_nodes_door_mechanic"},
+	{base_name = "blue", base_ingredient = "default:steel_block", sound = "scifi_nodes_door_normal"}
 }
 
+for _, current_door in ipairs(doors) do
 
-for i in ipairs (doors) do
+	local closed = "scifi_nodes:"..current_door.base_name.."_door_closed"
+	local closed_top = "scifi_nodes:"..current_door.base_name.."_door_closed_top"
+	local opened = "scifi_nodes:"..current_door.base_name.."_door_opened"
+	local opened_top = "scifi_nodes:"..current_door.base_name.."_door_opened_top"
+	local base_name = current_door.base_name
+	local base_ingredient = current_door.base_ingredient
+	local sound = current_door.sound
+	local doors_rightclick
 
--- TODO: make a map with entries: {a="", b="", desc="", etc}
-local doora = doors[i][1]
-local doorb = doors[i][2]
-local doorc = doors[i][3]
-local doord = doors[i][4]
-local num = doors[i][5]
-local des = doors[i][6]
-local base_ingredient = doors[i][7]
-local sound = doors[i][8]
-
-minetest.register_craft({
-    output = doora .. " 2",
-    recipe = {
-        {"scifi_nodes:white2", base_ingredient, "scifi_nodes:white2"},
-        {"scifi_nodes:black", base_ingredient, "scifi_nodes:black"}
-    }
-})
+	minetest.register_craft({
+		output = closed .. " 2",
+		recipe = {
+			{"scifi_nodes:white2", base_ingredient, "scifi_nodes:white2"},
+			{"scifi_nodes:black", base_ingredient, "scifi_nodes:black"}
+		}
+	})
 
 
-function onplace(itemstack, placer, pointed_thing)
-	local pos1 = pointed_thing.above
-	local pos2 = {x=pos1.x, y=pos1.y, z=pos1.z}
-	      pos2.y = pos2.y+1
-	if
+	function onplace(itemstack, placer, pointed_thing)
+		-- Is there room enough ?
+		local pos1 = pointed_thing.above
+		local pos2 = {x=pos1.x, y=pos1.y, z=pos1.z}
+			  pos2.y = pos2.y+1 -- 2 nodes above
 
-	not minetest.registered_nodes[minetest.get_node(pos1).name].buildable_to or
-	not minetest.registered_nodes[minetest.get_node(pos2).name].buildable_to or
-	not placer or
-	not placer:is_player() or
-	minetest.is_protected(pos1, placer:get_player_name()) or
-	minetest.is_protected(pos2, placer:get_player_name()) then
-		return
+		if
+		not minetest.registered_nodes[minetest.get_node(pos1).name].buildable_to or
+		not minetest.registered_nodes[minetest.get_node(pos2).name].buildable_to or
+		not placer or
+		not placer:is_player() or
+		minetest.is_protected(pos1, placer:get_player_name()) or
+		minetest.is_protected(pos2, placer:get_player_name()) then
+			return
+		end
+
+		local pt = pointed_thing.above
+		local pt2 = {x=pt.x, y=pt.y, z=pt.z}
+		pt2.y = pt2.y+1
+		-- Player look dir is converted to node rotation ?
+		local p2 = minetest.dir_to_facedir(placer:get_look_dir())
+		-- Where to look for another door ?
+		local pt3 = {x=pt.x, y=pt.y, z=pt.z}
+
+		-- Door param2 depends of placer's look dir
+		local p4 = 0
+		if p2 == 0 then
+			pt3.x = pt3.x-1
+			p4 = 2
+		elseif p2 == 1 then
+			pt3.z = pt3.z+1
+			p4 = 3
+		elseif p2 == 2 then
+			pt3.x = pt3.x+1
+			p4 = 0
+		elseif p2 == 3 then
+			pt3.z = pt3.z-1
+			p4 = 1
+		end
+
+		-- First door of a pair is already there
+		if minetest.get_node(pt3).name == closed then
+			minetest.set_node(pt, {name=closed, param2=p4,})
+			minetest.set_node(pt2, {name=closed_top, param2=p4})
+		--	Placed door is the first of a pair
+		else
+			minetest.set_node(pt, {name=closed, param2=p2,})
+			minetest.set_node(pt2, {name=closed_top, param2=p2})
+		end
+
+		itemstack:take_item(1)
+		return itemstack;
 	end
-			local pt = pointed_thing.above
-			local pt2 = {x=pt.x, y=pt.y, z=pt.z}
-			pt2.y = pt2.y+1
-			local p2 = minetest.dir_to_facedir(placer:get_look_dir())
-			local pt3 = {x=pt.x, y=pt.y, z=pt.z}
-			local p4 = 0
-			if p2 == 0 then
-				pt3.x = pt3.x-1
-				p4 = 2
-			elseif p2 == 1 then
-				pt3.z = pt3.z+1
-				p4 = 3
-			elseif p2 == 2 then
-				pt3.x = pt3.x+1
-				p4 = 0
-			elseif p2 == 3 then
-				pt3.z = pt3.z-1
-				p4 = 1
+
+	function afterdestruct(pos, oldnode)
+		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z},{name="air"})
+	end
+
+	function open_door(pos, node, player, itemstack, pointed_thing)
+		-- play sound
+		minetest.sound_play(sound,{
+			max_hear_distance = 16,
+			pos = pos,
+			gain = 1.0
+		})
+
+		local timer = minetest.get_node_timer(pos)
+		local a = minetest.get_node({x=pos.x, y=pos.y, z=pos.z-1})
+		local b = minetest.get_node({x=pos.x, y=pos.y, z=pos.z+1})
+		local c = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z})
+		local d = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z})
+		local e = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z-1})
+		local f = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z-1})
+		local g = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z+1})
+		local h = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z+1})
+	
+	
+			minetest.set_node(pos, {name=opened, param2=node.param2})
+			minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z}, {name=opened_top, param2=node.param2})
+
+			 if a.name == closed then
+			minetest.set_node({x=pos.x, y=pos.y, z=pos.z-1}, {name=opened, param2=a.param2})
+			minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z-1}, {name=opened_top, param2=a.param2})
 			end
-			if minetest.get_node(pt3).name == doora then
-				minetest.set_node(pt, {name=doora, param2=p4})
-				minetest.set_node(pt2, {name=doorb, param2=p4})
-			else
-				minetest.set_node(pt, {name=doora, param2=p2})
-				minetest.set_node(pt2, {name=doorb, param2=p2})
+			 if b.name == closed then
+			minetest.set_node({x=pos.x, y=pos.y, z=pos.z+1}, {name=opened, param2=b.param2})
+			minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z+1}, {name=opened_top, param2=b.param2})
 			end
-	itemstack:take_item(1)
+			 if c.name == closed then
+			minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z}, {name=opened, param2=c.param2})
+			minetest.set_node({x=pos.x+1,y=pos.y+1,z=pos.z}, {name=opened_top, param2=c.param2})
+			end
+			 if d.name == closed then
+			minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z}, {name=opened, param2=d.param2})
+			minetest.set_node({x=pos.x-1,y=pos.y+1,z=pos.z}, {name=opened_top, param2=d.param2})
+			end
+			 if e.name == closed then
+			minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z-1}, {name=opened, param2=e.param2})
+			minetest.set_node({x=pos.x+1, y=pos.y+1, z=pos.z-1}, {name=opened_top, param2=e.param2})
+			end
+			 if f.name == closed then
+			minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z-1}, {name=opened, param2=f.param2})
+			minetest.set_node({x=pos.x-1, y=pos.y+1, z=pos.z-1}, {name=opened_top, param2=f.param2})
+			end
+			 if g.name == closed then
+			minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z+1}, {name=opened, param2=g.param2})
+			minetest.set_node({x=pos.x+1, y=pos.y+1, z=pos.z+1}, {name=opened_top, param2=g.param2})
+			end
+			 if h.name == closed then
+			minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z+1}, {name=opened, param2=h.param2})
+			minetest.set_node({x=pos.x-1, y=pos.y+1, z=pos.z+1}, {name=opened_top, param2=h.param2})
+			end
+			timer:start(3)
+	end
 
-	return itemstack;
-end
+	function afterplace(pos, placer, itemstack, pointed_thing)
+		   minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z},{name=opened_top,param2=nodeu.param2})
+	end
 
-function afterdestruct(pos, oldnode)
-	   minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z},{name="air"})
-end
+	function ontimer(pos, elapsed)
+		-- play sound
+		minetest.sound_play(sound,{
+			max_hear_distance = 16,
+			pos = pos,
+			gain = 1.0
+		})
 
-function rightclick(pos, node, player, itemstack, pointed_thing)
-	-- play sound
-	minetest.sound_play(sound,{
-		max_hear_distance = 16,
-		pos = pos,
-		gain = 1.0
+		local node = minetest.get_node(pos)
+		local a = minetest.get_node({x=pos.x, y=pos.y, z=pos.z-1})
+		local b = minetest.get_node({x=pos.x, y=pos.y, z=pos.z+1})
+		local c = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z})
+		local d = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z})
+		local e = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z-1})
+		local f = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z-1})
+		local g = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z+1})
+		local h = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z+1})
+
+		minetest.set_node(pos, {name=closed, param2=node.param2})
+		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z}, {name=closed_top, param2=node.param2})
+
+		if a.name == opened then
+			minetest.set_node({x=pos.x, y=pos.y, z=pos.z-1}, {name=closed, param2=a.param2})
+			minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z-1}, {name=closed_top, param2=a.param2})
+		end
+		if b.name == opened then
+			minetest.set_node({x=pos.x, y=pos.y, z=pos.z+1}, {name=closed, param2=b.param2})
+			minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z+1}, {name=closed_top, param2=b.param2})
+		end
+		if c.name == opened then
+			minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z}, {name=closed, param2=c.param2})
+			minetest.set_node({x=pos.x+1,y=pos.y+1,z=pos.z}, {name=closed_top, param2=c.param2})
+		end
+		if d.name == opened then
+			minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z}, {name=closed, param2=d.param2})
+			minetest.set_node({x=pos.x-1,y=pos.y+1,z=pos.z}, {name=closed_top, param2=d.param2})
+		end
+		if e.name == opened then
+			minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z-1}, {name=closed, param2=e.param2})
+			minetest.set_node({x=pos.x+1, y=pos.y+1, z=pos.z-1}, {name=closed_top, param2=e.param2})
+		end
+		if f.name == opened then
+			minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z-1}, {name=closed, param2=f.param2})
+			minetest.set_node({x=pos.x-1, y=pos.y+1, z=pos.z-1}, {name=closed_top, param2=f.param2})
+		end
+		if g.name == opened then
+		minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z+1}, {name=closed, param2=g.param2})
+		minetest.set_node({x=pos.x+1, y=pos.y+1, z=pos.z+1}, {name=closed_top, param2=g.param2})
+			end
+		if h.name == opened then
+			minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z+1}, {name=closed, param2=h.param2})
+			minetest.set_node({x=pos.x-1, y=pos.y+1, z=pos.z+1}, {name=closed_top, param2=h.param2})
+		end
+	end
+
+	local mesecons_doors_rules = {
+		-- get signal from pressure plate
+		{x=-1, y=0, z=0},
+		{x=0,  y=0, z=1},
+		{x=0,  y=0, z=-1},
+		{x=1,  y=0, z=0},
+		-- get signal from wall mounted button
+		{x=-1, y=1, z=-1},
+		{x=-1, y=1, z=1},
+		{x=0, y=1, z=-1},
+		{x=0, y=1, z=1},
+		{x=1, y=1, z=-1},
+		{x=1, y=1, z=1},
+		{x=-1, y=1, z=0},
+		{x=1, y=1, z=0},
+	}
+
+	local mesecons_doors_def = {
+		effector = {
+			action_on = open_door,
+			rules = mesecons_doors_rules
+		},
+	}
+
+	local doors_rightclick = nil -- Crashes serv if empty table !
+	if not scifi_nodes.doors_open_with_mesecon_only then doors_rightclick = open_door end
+
+	minetest.register_node(closed, {
+		description = current_door.base_name.." sliding door",
+		inventory_image = "scifi_nodes_door_"..base_name.."_inv.png",
+		wield_image = "scifi_nodes_door_"..base_name.."_inv.png",
+		tiles = {
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_rbottom.png",
+			"scifi_nodes_door_"..base_name.."_bottom.png"
+		},
+		drawtype = "nodebox",
+		paramtype = "light",
+		paramtype2 = "facedir",
+		groups = {cracky = 3, oddly_breakable_by_hand = 1},
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.0625, 0.5, 0.5, 0.0625}
+			}
+		},
+		selection_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.0625, 0.5, 1.5, 0.0625}
+			}
+		},
+		mesecons = mesecons_doors_def,
+		on_place = onplace,
+		after_destruct = afterdestruct,
+		on_rightclick = doors_rightclick,
 	})
 
-	local timer = minetest.get_node_timer(pos)
-	local a = minetest.get_node({x=pos.x, y=pos.y, z=pos.z-1})
-	local b = minetest.get_node({x=pos.x, y=pos.y, z=pos.z+1})
-	local c = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z})
-	local d = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z})
-	local e = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z-1})
-	local f = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z-1})
-	local g = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z+1})
-	local h = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z+1})
-	
-	
-		minetest.set_node(pos, {name=doorc, param2=node.param2})
-		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z}, {name=doord, param2=node.param2})
-
-	     if a.name == doora then
-		minetest.set_node({x=pos.x, y=pos.y, z=pos.z-1}, {name=doorc, param2=a.param2})
-		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z-1}, {name=doord, param2=a.param2})
-		end
-	     if b.name == doora then
-		minetest.set_node({x=pos.x, y=pos.y, z=pos.z+1}, {name=doorc, param2=b.param2})
-		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z+1}, {name=doord, param2=b.param2})
-		end
-	     if c.name == doora then
-		minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z}, {name=doorc, param2=c.param2})
-		minetest.set_node({x=pos.x+1,y=pos.y+1,z=pos.z}, {name=doord, param2=c.param2})
-		end
-	     if d.name == doora then
-		minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z}, {name=doorc, param2=d.param2})
-		minetest.set_node({x=pos.x-1,y=pos.y+1,z=pos.z}, {name=doord, param2=d.param2})
-		end
-	     if e.name == doora then
-		minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z-1}, {name=doorc, param2=e.param2})
-		minetest.set_node({x=pos.x+1, y=pos.y+1, z=pos.z-1}, {name=doord, param2=e.param2})
-		end
-	     if f.name == doora then
-		minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z-1}, {name=doorc, param2=f.param2})
-		minetest.set_node({x=pos.x-1, y=pos.y+1, z=pos.z-1}, {name=doord, param2=f.param2})
-		end
-	     if g.name == doora then
-		minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z+1}, {name=doorc, param2=g.param2})
-		minetest.set_node({x=pos.x+1, y=pos.y+1, z=pos.z+1}, {name=doord, param2=g.param2})
-		end
-	     if h.name == doora then
-		minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z+1}, {name=doorc, param2=h.param2})
-		minetest.set_node({x=pos.x-1, y=pos.y+1, z=pos.z+1}, {name=doord, param2=h.param2})
-		end
-
-	   timer:start(3)
-
-end
-
-function afterplace(pos, placer, itemstack, pointed_thing)
-	   minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z},{name=doord,param2=nodeu.param2})
-end
-
-function ontimer(pos, elapsed)
-	-- play sound
-	minetest.sound_play(sound,{
-		max_hear_distance = 16,
-		pos = pos,
-		gain = 1.0
+	minetest.register_node(closed_top, {
+		tiles = {
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_rtop.png",
+			"scifi_nodes_door_"..base_name.."_top.png"
+		},
+		drawtype = "nodebox",
+		paramtype = "light",
+		paramtype2 = "facedir",
+		groups = {cracky = 1},
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.0625, 0.5, 0.5, 0.0625}
+			}
+		},
+		selection_box = {
+			type = "fixed",
+			fixed = {
+				{0, 0, 0, 0, 0, 0},
+			}
+		},
 	})
 
-	local node = minetest.get_node(pos)
-	local a = minetest.get_node({x=pos.x, y=pos.y, z=pos.z-1})
-	local b = minetest.get_node({x=pos.x, y=pos.y, z=pos.z+1})
-	local c = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z})
-	local d = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z})
-	local e = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z-1})
-	local f = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z-1})
-	local g = minetest.get_node({x=pos.x+1, y=pos.y, z=pos.z+1})
-	local h = minetest.get_node({x=pos.x-1, y=pos.y, z=pos.z+1})
-	
-	
-		minetest.set_node(pos, {name=doora, param2=node.param2})
-		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z}, {name=doorb, param2=node.param2})
+	minetest.register_node(opened, {
+		tiles = {
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_rbottom0.png",
+			"scifi_nodes_door_"..base_name.."_bottom0.png"
+		},
+		drawtype = "nodebox",
+		paramtype = "light",
+		paramtype2 = "facedir",
+		drop = closed,
+		groups = {cracky = 1},
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.0625, -0.25, 0.5, 0.0625},
+			}
+		},
+		selection_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.0625, -0.25, 1.5, 0.0625},
+			}
+		},
+	after_place_node = afterplace,
+	after_destruct = afterdestruct,
+	on_timer = ontimer,
+	})
 
-	     if a.name == doorc then
-		minetest.set_node({x=pos.x, y=pos.y, z=pos.z-1}, {name=doora, param2=a.param2})
-		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z-1}, {name=doorb, param2=a.param2})
-		end
-	     if b.name == doorc then
-		minetest.set_node({x=pos.x, y=pos.y, z=pos.z+1}, {name=doora, param2=b.param2})
-		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z+1}, {name=doorb, param2=b.param2})
-		end
-	     if c.name == doorc then
-		minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z}, {name=doora, param2=c.param2})
-		minetest.set_node({x=pos.x+1,y=pos.y+1,z=pos.z}, {name=doorb, param2=c.param2})
-		end
-	     if d.name == doorc then
-		minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z}, {name=doora, param2=d.param2})
-		minetest.set_node({x=pos.x-1,y=pos.y+1,z=pos.z}, {name=doorb, param2=d.param2})
-		end
-	     if e.name == doorc then
-		minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z-1}, {name=doora, param2=e.param2})
-		minetest.set_node({x=pos.x+1, y=pos.y+1, z=pos.z-1}, {name=doorb, param2=e.param2})
-		end
-	     if f.name == doorc then
-		minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z-1}, {name=doora, param2=f.param2})
-		minetest.set_node({x=pos.x-1, y=pos.y+1, z=pos.z-1}, {name=doorb, param2=f.param2})
-		end
-	     if g.name == doorc then
-		minetest.set_node({x=pos.x+1, y=pos.y, z=pos.z+1}, {name=doora, param2=g.param2})
-		minetest.set_node({x=pos.x+1, y=pos.y+1, z=pos.z+1}, {name=doorb, param2=g.param2})
-		end
-	     if h.name == doorc then
-		minetest.set_node({x=pos.x-1, y=pos.y, z=pos.z+1}, {name=doora, param2=h.param2})
-		minetest.set_node({x=pos.x-1, y=pos.y+1, z=pos.z+1}, {name=doorb, param2=h.param2})
-		end
-
-end
-
-minetest.register_node(doora, {
-	description = des.." Sliding Door",
-	inventory_image = "scifi_nodes_door"..num.."a_inv.png",
-	wield_image = "scifi_nodes_door"..num.."a_inv.png",
-	tiles = {
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_rbottom.png",
-		"scifi_nodes_door"..num.."a_bottom.png"
-	},
-	drawtype = "nodebox",
-	paramtype = "light",
-	paramtype2 = "facedir",
-	groups = {cracky = 3},
-	node_box = {
-		type = "fixed",
-		fixed = {
-			{-0.5, -0.5, -0.0625, 0.5, 0.5, 0.0625}
-		}
-	},
-	selection_box = {
-		type = "fixed",
-		fixed = {
-			{-0.5, -0.5, -0.0625, 0.5, 1.5, 0.0625}
-		}
-	},
-
-on_place = onplace,
-
-after_destruct = afterdestruct,
-
-on_rightclick = rightclick,
-})
-minetest.register_node(doorb, {
-	tiles = {
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_rtop.png",
-		"scifi_nodes_door"..num.."a_top.png"
-	},
-	drawtype = "nodebox",
-	paramtype = "light",
-	paramtype2 = "facedir",
-	groups = {cracky = 1},
-	node_box = {
-		type = "fixed",
-		fixed = {
-			{-0.5, -0.5, -0.0625, 0.5, 0.5, 0.0625}
-		}
-	},
-	selection_box = {
-		type = "fixed",
-		fixed = {
-			{0, 0, 0, 0, 0, 0},
-		}
-	},
-})
-minetest.register_node(doorc, {
-	tiles = {
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_rbottom0.png",
-		"scifi_nodes_door"..num.."a_bottom0.png"
-	},
-	drawtype = "nodebox",
-	paramtype = "light",
-	paramtype2 = "facedir",
-	drop = doora,
-	groups = {cracky = 1},
-	node_box = {
-		type = "fixed",
-		fixed = {
-			{-0.5, -0.5, -0.0625, -0.25, 0.5, 0.0625},
-		}
-	},
-	selection_box = {
-		type = "fixed",
-		fixed = {
-			{-0.5, -0.5, -0.0625, -0.25, 1.5, 0.0625},
-		}
-	},
-after_place_node = afterplace,
-after_destruct = afterdestruct,
-on_timer = ontimer,
-})
-minetest.register_node(doord, {
-	tiles = {
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_edge.png",
-		"scifi_nodes_door"..num.."a_rtopo.png",
-		"scifi_nodes_door"..num.."a_topo.png"
-	},
-	drawtype = "nodebox",
-	paramtype = "light",
-	paramtype2 = "facedir",
-	groups = {cracky = 1},
-	node_box = {
-		type = "fixed",
-		fixed = {
-			{-0.5, -0.5, -0.0625, -0.25, 0.5, 0.0625},
-		}
-	},
-	selection_box = {
-		type = "fixed",
-		fixed = {
-			{0, 0, 0, 0, 0, 0}, 
-		}
-	},
-})
-end
+	minetest.register_node(opened_top, {
+		tiles = {
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_edge.png",
+			"scifi_nodes_door_"..base_name.."_rtopo.png",
+			"scifi_nodes_door_"..base_name.."_topo.png"
+		},
+		drawtype = "nodebox",
+		paramtype = "light",
+		paramtype2 = "facedir",
+		groups = {cracky = 1},
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.0625, -0.25, 0.5, 0.0625},
+			}
+		},
+		selection_box = {
+			type = "fixed",
+			fixed = {
+				{0, 0, 0, 0, 0, 0}, 
+			}
+		},
+	})
+end     -- end of doors table browsing
diff --git a/init.lua b/init.lua
index 2810e09..3d6eb52 100644
--- a/init.lua
+++ b/init.lua
@@ -129,7 +129,8 @@ minetest.register_node("scifi_nodes:rfloor", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	light_source = 10,
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:bfloor", {
@@ -140,7 +141,8 @@ minetest.register_node("scifi_nodes:bfloor", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	light_source = 10,
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_metal_defaults()
 })
 
 
@@ -156,7 +158,8 @@ minetest.register_node("scifi_nodes:stripes2", {
 		"scifi_nodes_stripes2.png"
 	},
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:gblock", {
@@ -171,7 +174,8 @@ minetest.register_node("scifi_nodes:gblock", {
 		"scifi_nodes_gblock.png"
 	},
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1};
+	sounds = default.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:gblock2", {
@@ -187,7 +191,8 @@ minetest.register_node("scifi_nodes:gblock2", {
 	},
 	paramtype = "light",
 	paramtype2 = "facedir",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:gblock3", {
@@ -203,7 +208,8 @@ minetest.register_node("scifi_nodes:gblock3", {
 	},
 	paramtype = "light",
 	paramtype2 = "facedir",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_metal_defaults()
 })
 
 
@@ -221,7 +227,8 @@ minetest.register_node("scifi_nodes:green_light", {
 	},
 	light_source = 10,
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:red_light", {
@@ -237,7 +244,8 @@ minetest.register_node("scifi_nodes:red_light", {
 	},
 	light_source = 10,
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:discs", {
@@ -252,7 +260,8 @@ minetest.register_node("scifi_nodes:discs", {
 		"scifi_nodes_discs.png"
 	},
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:disc", {
@@ -279,6 +288,7 @@ minetest.register_node("scifi_nodes:blink", {
 	paramtype = "light",
 	groups = {cracky=1},
 	light_source = 5,
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:black_lights", {
@@ -290,6 +300,7 @@ minetest.register_node("scifi_nodes:black_lights", {
 	}},
 	paramtype = "light",
 	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:black_screen", {
@@ -302,6 +313,7 @@ minetest.register_node("scifi_nodes:black_screen", {
 	paramtype = "light",
 	groups = {cracky=1},
 	light_source = 1,
+	sounds = default.node_sound_stone_defaults()
 })
 
 minetest.register_node("scifi_nodes:screen", {
@@ -314,6 +326,7 @@ minetest.register_node("scifi_nodes:screen", {
 	paramtype = "light",
 	groups = {cracky=1},
 	light_source = 5,
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:screen2", {
@@ -326,6 +339,7 @@ minetest.register_node("scifi_nodes:screen2", {
 	paramtype = "light",
 	groups = {cracky=1},
 	light_source = 5,
+	sounds = default.node_sound_glass_defaults()
 })
 
 
@@ -343,7 +357,8 @@ minetest.register_node("scifi_nodes:white_pad", {
 	},
 	paramtype = "light",
 	paramtype2 = "facedir",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:white_base", {
@@ -359,7 +374,8 @@ minetest.register_node("scifi_nodes:white_base", {
 	},
 	paramtype = "light",
 	paramtype2 = "facedir",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:grnpipe", {
@@ -376,6 +392,7 @@ minetest.register_node("scifi_nodes:grnpipe", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	groups = {cracky=1},
+	sounds = default.node_sound_metal_defaults(),
 	on_place = minetest.rotate_node
 })
 
@@ -394,6 +411,7 @@ minetest.register_node("scifi_nodes:grnpipe2", {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	groups = {cracky=1},
+	sounds = default.node_sound_metal_defaults(),
 	on_place = minetest.rotate_node
 })
 
@@ -410,6 +428,7 @@ minetest.register_node("scifi_nodes:octrng", {
 	light_source = 10,
 	groups = {cracky=2},
 	sounds = default.node_sound_glass_defaults(),
+	sounds = default.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:octgrn", {
@@ -440,6 +459,7 @@ minetest.register_node("scifi_nodes:octbl", {
 	light_source = 10,
 	groups = {cracky=2},
 	sounds = default.node_sound_glass_defaults(),
+	sounds = default.node_sound_glass_defaults(),
 })
 
 minetest.register_node("scifi_nodes:octppl", {
@@ -469,6 +489,7 @@ minetest.register_node("scifi_nodes:tower", {
 	inventory_image = "scifi_nodes_tower.png",
 	paramtype = "light",
 	groups = {cracky=2},
+	sounds = default.node_sound_metal_defaults()
 })
 
 minetest.register_node("scifi_nodes:junk", {
@@ -594,6 +615,7 @@ for _, row in ipairs(node.types) do
 		paramtype = "light",
 		paramtype2 = "facedir",
 		light_source = light,
+		sounds = default.node_sound_glass_defaults()
 	})
 end
 
@@ -782,7 +804,8 @@ minetest.register_node("scifi_nodes:blumetlight", {
 	},
 	light_source = 10,
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 
@@ -794,7 +817,8 @@ minetest.register_node("scifi_nodes:lightstp", {
 	},
 	light_source = default.LIGHT_MAX,
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:blklt2", {
@@ -805,7 +829,8 @@ minetest.register_node("scifi_nodes:blklt2", {
 	},
 	light_source = 10,
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:blumetstr", {
@@ -816,7 +841,8 @@ minetest.register_node("scifi_nodes:blumetstr", {
 	},
 	light_source = 10,
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:glass", {
@@ -828,7 +854,8 @@ minetest.register_node("scifi_nodes:glass", {
 	},
 	use_texture_alpha = true,
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 minetest.register_node("scifi_nodes:whtlightbnd", {
@@ -839,7 +866,8 @@ minetest.register_node("scifi_nodes:whtlightbnd", {
 	},
 	light_source = 10,
 	paramtype = "light",
-	groups = {cracky=1}
+	groups = {cracky=1},
+	sounds = default.node_sound_glass_defaults()
 })
 
 --extra stuff
diff --git a/mod.conf b/mod.conf
index 3bd6219..798a21b 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,4 +1,4 @@
 name = scifi_nodes
 description = A mod which the vegan kitchen to Minetest.
-depends = default,dye,basic_materials
-optional_depends = xpanes,moreblocks,mesecons,mesecons_microcontroller,mesecons_button,mesecons_torch,mesecons_receiver
+depends = default,dye,basic_materials, mesecons
+optional_depends = xpanes,moreblocks,mesecons_microcontroller,mesecons_button,mesecons_torch,mesecons_receiver
diff --git a/nodeboxes.lua b/nodeboxes.lua
index bf06e02..5f426f6 100644
--- a/nodeboxes.lua
+++ b/nodeboxes.lua
@@ -32,6 +32,7 @@ minetest.register_node("scifi_nodes:alienslope", {
 			{-0.125, 0.375, -0.5, 0.5, 0.5, 0.5}, -- NodeBox17
 		}
 	},
+	sounds = default.node_sound_wood_defaults(),
 	on_place = minetest.rotate_node
 })
 
@@ -61,6 +62,7 @@ minetest.register_node("scifi_nodes:wallpipe", {
 			{-0.5, -0.125, 0, 0.5, 0, 0.0625}, -- NodeBox24
 		}
 	},
+	sounds = default.node_sound_wood_defaults()
 })
 
 minetest.register_node("scifi_nodes:plant_trap", {
@@ -88,7 +90,8 @@ minetest.register_node("scifi_nodes:plant_trap", {
 			{-0.0625, -0.5, -0.0625, 0, -0.4375, 0.375}, -- NodeBox27
 			{-0.0625, -0.5, 0.3125, 0, 0.5, 0.375}, -- NodeBox28
 		}
-	}
+	},
+	sounds = default.node_sound_wood_defaults(),
 })
 
 minetest.register_node("scifi_nodes:egg", {
@@ -118,7 +121,8 @@ minetest.register_node("scifi_nodes:egg", {
 			{-0.1875, 0.6875, -0.1875, 0.1875, 0.75, 0.1875}, -- NodeBox7
 			{-0.125, 0.75, -0.125, 0.125, 0.8125, 0.125}, -- NodeBox8
 			{-0.375, -0.3125, -0.4375, 0.375, 0.3125, 0.4375}, -- NodeBox9
-		}
+		},
+	sounds = default.node_sound_wood_defaults()
 	}
 })
 
@@ -261,7 +265,8 @@ minetest.register_node("scifi_nodes:pad", {
 			{-0.8125, -0.5, -0.875, 0.75, -0.375, 0.875}, -- NodeBox2
 			{-0.875, -0.5, -0.8125, 0.8125, -0.375, 0.8125}, -- NodeBox3
 			{-0.8125, -0.5, -0.75, 0.75, -0.3125, 0.75}, -- NodeBox4
-		}
+		},
+	sounds = default.node_sound_wood_defaults()
 	}
 })
 
@@ -361,8 +366,6 @@ minetest.register_node("scifi_nodes:pot_lid", {
 	sounds = default.node_sound_glass_defaults()
 })
 
-
-
 minetest.register_node("scifi_nodes:pot", {
 	description = "metal plant pot (right click for lid, shift+rightclick to plant)",
 	tiles = {
@@ -506,7 +509,8 @@ minetest.register_node("scifi_nodes:ladder", {
 			{0.3125, -0.5, 0.3125, 0.4375, -0.375, 0.4375}, -- NodeBox24
 			{0.3125, -0.5, 0.0625, 0.4375, -0.375, 0.1875}, -- NodeBox25
 			{0.3125, -0.5, -0.1875, 0.4375, -0.375, -0.0625}, -- NodeBox26
-		}
+		},
+	sounds = default.node_sound_metal_defaults()
 	},
 	paramtype2 = "wallmounted",
 	walkable = false,
@@ -634,6 +638,7 @@ minetest.register_node("scifi_nodes:cover", {
 			{-0.3125, -0.375, -0.3125, 0.3125, -0.3125, 0.3125}, -- NodeBox6
 		}
 	},
+	sounds = default.node_sound_wood_defaults(),
 	groups = {cracky=1, oddly_breakable_by_hand=1}
 })
 
@@ -738,6 +743,7 @@ minetest.register_node("scifi_nodes:table", {
 			{-0.0625, 0.25, -0.125, 0.0625, 0.4375, -0.0625}, -- NodeBox7
 		}
 	},
+	sounds = default.node_sound_metal_defaults(),
 	groups = {cracky=1}
 })
 
@@ -1140,12 +1146,12 @@ minetest.register_node("scifi_nodes:widescreen", {
 		type = "fixed",
 		fixed = {
 			{-0.375, -0.3125, 0.4375, 0.375, 0.3125, 0.5}, -- NodeBox1
-			{-0.5, -0.375, 0.375, -0.375, 0.375, 0.5}, -- NodeBox2
-			{0.375, -0.375, 0.375, 0.5, 0.375, 0.5}, -- NodeBox3
-			{-0.3125, 0.25, 0.375, 0.3125, 0.375, 0.5}, -- NodeBox4
-			{-0.3125, -0.375, 0.375, 0.25, -0.25, 0.5}, -- NodeBox5
-			{-0.5, -0.3125, 0.375, 0.5, -0.25, 0.5}, -- NodeBox6
-			{-0.5, 0.25, 0.375, 0.5, 0.3125, 0.5}, -- NodeBox7
+			{-0.5, -0.375, 0.375, -0.375, 0.375, 0.5},     -- NodeBox2
+			{0.375, -0.375, 0.375, 0.5, 0.375, 0.5},       -- NodeBox3
+			{-0.3125, 0.25, 0.375, 0.3125, 0.375, 0.5},    -- NodeBox4
+			{-0.3125, -0.375, 0.375, 0.25, -0.25, 0.5},    -- NodeBox5
+			{-0.5, -0.3125, 0.375, 0.5, -0.25, 0.5},       -- NodeBox6
+			{-0.5, 0.25, 0.375, 0.5, 0.3125, 0.5},         -- NodeBox7
 		}
 	},
 	groups = {cracky=1, oddly_breakable_by_hand=1}
@@ -1203,112 +1209,356 @@ minetest.register_node("scifi_nodes:windowpanel", {
     sounds = default.node_sound_glass_defaults(),
 })
 
-if  (mesecon ~= nil) and
-    (mesecon.receptor_on ~= nil) and
-    (mesecon.receptor_off ~= nil)           then
-   minetest.register_node("scifi_nodes:switch_off", {
-        description = "Wall switch",
-        tiles = {
-            "scifi_nodes_switch_off.png",
-        },
-        inventory_image = "scifi_nodes_switch_on.png",
-        wield_image = "scifi_nodes_switch_on.png",
-        drawtype = "signlike",
-        sunlight_propagates = true,
-        selection_box = {
-            type = "wallmounted",
-            fixed = {-0.5, -0.3, -0.3, -0.45, 0.3, 0.3}
-        },
-        paramtype = "light",
-        paramtype2 = "wallmounted",
-        groups = {cracky=1, oddly_breakable_by_hand=1, mesecon_needs_receiver = 1},
-        on_rightclick = function(pos, node, clicker, item, _)
-                minetest.set_node(pos, {name="scifi_nodes:switch_on", param2=node.param2})
-                mesecon.receptor_on(pos)
-        end,
-        sounds = default.node_sound_glass_defaults(),
-        mesecons = {receptor = { state = mesecon.state.off }}
-    })
 
-    minetest.register_node("scifi_nodes:switch_on", {
-        description = "Wall switch",
-        sunlight_propagates = true,
-        tiles = {
-            "scifi_nodes_switch_on.png",
-        },
-        inventory_image = "scifi_nodes_switch_on.png",
-        wield_image = "scifi_nodes_switch_on.png",
-        drawtype = "signlike",
-        selection_box = {
-            type = "wallmounted",
-            fixed = {-0.5, -0.3, -0.3, -0.45, 0.3, 0.3}
-        },
-        paramtype = "light",
-        paramtype2 = "wallmounted",
-        light_source = 5,
-        groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
-        on_rightclick = function(pos, node, clicker, item, _)
-                minetest.set_node(pos, {name="scifi_nodes:switch_off", param2=node.param2})
-                mesecon.receptor_off(pos)
-        end,
-        sounds = default.node_sound_glass_defaults(),
-        mesecons = {receptor = { state = mesecon.state.on }}
-    })
+--------------
+-- Switches --
+--------------
 
-    minetest.register_craft({
-        output = "scifi_nodes:switch_off 2",
-        recipe = {
-            {"mesecons_button:button_off", "scifi_nodes:grey", ""}
-        }
-    })
-    
-else
-    --wall switch, currently does not do anything
-    minetest.register_node("scifi_nodes:switch_off", {
-        description = "Wall switch",
-        tiles = {
-            "scifi_nodes_switch_off.png",
-        },
-        inventory_image = "scifi_nodes_switch_on.png",
-        wield_image = "scifi_nodes_switch_on.png",
-        drawtype = "signlike",
-        sunlight_propagates = true,
-        selection_box = {
-            type = "wallmounted",
-            fixed = {-0.5, -0.3, -0.3, -0.45, 0.3, 0.3}
-        },
-        paramtype = "light",
-        paramtype2 = "wallmounted",
-        groups = {cracky=1, oddly_breakable_by_hand=1},
-        on_rightclick = function(pos, node, clicker, item, _)
-                minetest.set_node(pos, {name="scifi_nodes:switch_on", param2=node.param2})
-        end,
-        sounds = default.node_sound_glass_defaults()
-    })
+local function get_switch_rules(param2)
 
-    minetest.register_node("scifi_nodes:switch_on", {
-        description = "Wall switch",
-        sunlight_propagates = true,
-        tiles = {
-            "scifi_nodes_switch_on.png",
-        },
-        inventory_image = "scifi_nodes_switch_on.png",
-        wield_image = "scifi_nodes_switch_on.png",
-        drawtype = "signlike",
-        selection_box = {
-            type = "wallmounted",
-            fixed = {-0.5, -0.3, -0.3, -0.45, 0.3, 0.3}
-        },
-        paramtype = "light",
-        paramtype2 = "wallmounted",
-        light_source = 5,
-        groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1},
-        on_rightclick = function(pos, node, clicker, item, _)
-                minetest.set_node(pos, {name="scifi_nodes:switch_off", param2=node.param2})
-        end,
-        sounds = default.node_sound_glass_defaults()
+	-- param2 = 2
+	local rules = {
+		{x=1, y=-1, z=-1},
+		{x=1, y=-1, z=1},
+		{x=0, y=-1, z=-1},
+		{x=0, y=-1, z=1},
+	}
+
+-- Left and right when looking to +y ?
+	if param2 == 3 then
+		rules = mesecon.rotate_rules_right(mesecon.rotate_rules_right (rules))
+	elseif param2 == 4 then
+		rules = mesecon.rotate_rules_right(rules)
+	elseif param2 == 5 then
+		rules = mesecon.rotate_rules_left(rules)
+	end
+	return rules
+end
+
+local function toggle_switch(pos)
+	local node = minetest.get_node(pos)
+	local name = node.name
+	if name == "scifi_nodes:switch_on" then
+		minetest.sound_play("scifi_nodes_switch", {max_hear_distance = 8, pos = pos})
+		minetest.set_node(pos, {name = "scifi_nodes:switch_off", param2 = node.param2})
+		mesecon.receptor_off(pos, get_switch_rules(node.param2))
+	elseif name == "scifi_nodes:switch_off" then
+		minetest.sound_play("scifi_nodes_switch", {max_hear_distance = 8, pos = pos})
+		minetest.set_node(pos, {name = "scifi_nodes:switch_on", param2 = node.param2})
+		mesecon.receptor_on(pos, get_switch_rules(node.param2))
+		minetest.get_node_timer(pos):start(2)
+	end
+end
+
+minetest.register_node("scifi_nodes:switch_on", {
+	description = "Wall switch",
+	sunlight_propagates = true,
+	buildable_to = false,
+	tiles = {"scifi_nodes_switch_on.png",},
+	inventory_image = "scifi_nodes_switch_on.png",
+	wield_image = "scifi_nodes_switch_on.png",
+	drawtype = "signlike",
+	node_box = {type = "wallmounted",},
+	selection_box = {type = "wallmounted",},
+	paramtype = "light",
+	paramtype2 = "wallmounted",
+	light_source = 5,
+	groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
+	mesecons = {receptor = {state = mesecon.state.on,}},
+	sounds = default.node_sound_glass_defaults(),
+	on_rightclick = toggle_switch,
+	on_timer = toggle_switch
+})
+
+minetest.register_node("scifi_nodes:switch_off", {
+	description = "Wall switch",
+	tiles = {"scifi_nodes_switch_off.png",},
+	inventory_image = "scifi_nodes_switch_on.png",
+	wield_image = "scifi_nodes_switch_on.png",
+	drawtype = "signlike",
+	sunlight_propagates = true,
+	buildable_to = false,
+	node_box = {type = "wallmounted",},
+	selection_box = {type = "wallmounted",},
+	paramtype = "light",
+	paramtype2 = "wallmounted",
+	groups = {cracky=1, oddly_breakable_by_hand=1, mesecon_needs_receiver = 1},
+	mesecons = {receptor = {state = mesecon.state.off,}},
+	sounds = default.node_sound_glass_defaults(),
+	on_rightclick = toggle_switch
+})
+
+minetest.register_craft({
+	output = "scifi_nodes:switch_off 2",
+	recipe = {{"mesecons_button:button_off", "scifi_nodes:grey", ""}}
+})
+
+
+--------------
+-- Digicode --
+--------------
+
+local secret_code = "1234"
+local allowed_chars = "0123456789"
+local code_length = 4
+local digicode_context = {}
+
+-- after_place_node, use by digicode and palm_scanner
+-- placer is a player object
+local function set_owner(pos, placer, itemstack, pointed_thing)
+	local meta = minetest.get_meta(pos)
+	meta:set_string("owner", placer:get_player_name())
+	meta:set_string("code", secret_code)
+end
+
+local function toggle_digicode(pos)
+	local node = minetest.get_node(pos)
+	local name = node.name
+	if name == "scifi_nodes:digicode_off" then
+		minetest.swap_node(pos, {name="scifi_nodes:digicode_on", param2=node.param2})
+		mesecon.receptor_on(pos, get_switch_rules(node.param2))
+		minetest.get_node_timer(pos):start(2)
+	elseif name == "scifi_nodes:digicode_on" then
+		minetest.swap_node(pos, {name="scifi_nodes:digicode_off", param2=node.param2})
+		mesecon.receptor_off(pos, get_switch_rules(node.param2))
+	end
+end
+
+local function code_is_valid(code)
+	local valid = false
+	if type(code) == "string" and #code == code_length then
+		valid = true
+	end
+	for i=1, #code do
+		if not string.find(allowed_chars, string.sub(code,i,i)) then
+			valid = false
+		end
+	end
+	return valid
+end
+
+local function update_code(pos, code)
+	local meta = minetest.get_meta(pos)
+	meta:set_string("code", code)
+end
+
+local function show_digicode_formspec(pos, node, player, itemstack, pointed_thing)
+	local meta = minetest.get_meta(pos)
+	local owner = meta:get_string("owner")
+	local current_code = meta:get_string("code")
+	local current_player = player:get_player_name()
+
+	-- Gathering datas that will be used by callback function
+	digicode_context[current_player] = {code = current_code, pos = pos}
+
+	if current_player == owner then
+		minetest.show_formspec(current_player, "digicode_formspec",
+		"size[6,3]"..
+		"field[1,1;3,1;code;Code;]".. -- type, position, size, name, label
+		"button_exit[1,2;2,1;change;Change code]"..
+		"button_exit[3,2;2,1;open;Open door]")
+	else
+		minetest.show_formspec(current_player, "digicode_formspec",
+		"size[6,3]"..
+		"field[2,1;3,1;code;Code;]"..
+		"button_exit[2,2;3,1;open;Open door]")
+	end
+end
+
+-- Process datas from digicode_formspec
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+	if formname ~= "digicode_formspec" then
+		return false
+	end
+
+	local sounds = {"scifi_nodes_scanner_granted","scifi_nodes_scanner_refused",
+		"scifi_nodes_digicode_granted","scifi_nodes_digicode_refused"
+	}
+	local sound_index
+
+	-- We have the right formspec so we can proceed it.
+	-- Let's retrieve the datas we need :
+	local context = digicode_context[player:get_player_name()]
+
+	if fields.change and code_is_valid(fields.code) then
+		update_code(context.pos, fields.code)
+		sound_index = 1
+	elseif
+		fields.change and not code_is_valid(fields.code) then
+		sound_index = 2
+	elseif
+		fields.open and fields.code == context.code then
+		toggle_digicode(context.pos)
+		sound_index = 3
+	elseif
+		fields.open and fields.code ~= context.code then
+		sound_index = 4
+	end
+    -- play sound at context position
+	minetest.sound_play(sounds[sound_index], {
+    	pos = context.pos,
+		max_hear_distance = 10
     })
-    
-    --end of wall switch
-    
-end -- if(mesecon.receptor ~= on
+	context[player:get_player_name()] = nil -- we don't need it anymore
+end)
+
+minetest.register_node("scifi_nodes:digicode_on", {
+	description = "Digicode",
+	sunlight_propagates = true,
+	buildable_to = false,
+	tiles = {"scifi_nodes_digicode_on.png",},
+	inventory_image = "scifi_nodes_digicode_on.png",
+	wield_image = "scifi_nodes_digicode_on.png",
+	drawtype = "signlike",
+	node_box = {type = "wallmounted",},
+	selection_box = {type = "wallmounted",},
+	paramtype = "light",
+	paramtype2 = "wallmounted",
+	light_source = 5,
+	groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
+	drop = {items = {"scifi_nodes:digicode_off"}},
+	mesecons = {receptor = {state = mesecon.state.on,}},
+	on_timer = toggle_digicode,
+	sounds = default.node_sound_glass_defaults(),
+})
+
+minetest.register_node("scifi_nodes:digicode_off", {
+	description = "Digicode",
+	tiles = {"scifi_nodes_digicode_off.png",},
+	inventory_image = "scifi_nodes_digicode_off.png",
+	wield_image = "scifi_nodes_digicode_off.png",
+	drawtype = "signlike",
+	sunlight_propagates = true,
+	buildable_to = false,
+	node_box = {type = "wallmounted",},
+	selection_box = {type = "wallmounted",},
+	paramtype = "light",
+	paramtype2 = "wallmounted",
+	groups = {cracky=1, oddly_breakable_by_hand=1, mesecon_needs_receiver = 1},
+	mesecons = {receptor = {state = mesecon.state.off,}},
+	after_place_node = set_owner,
+	on_rightclick = show_digicode_formspec,
+	sounds = default.node_sound_glass_defaults(),
+})
+
+minetest.register_craft({
+	output = "scifi_nodes:digicode_off 2",
+	recipe = {{"mesecons_switch:mesecon_switch_off", "scifi_nodes:grey", ""}}
+})
+
+
+-----------------------------------------------
+--             Palm scanner                  --
+-----------------------------------------------
+-- /!\ When "overriding" a callback function --
+-- re-use all the parameters in same order ! --
+-----------------------------------------------
+
+-- after_place_node
+-- placer is a player object
+local function set_scanner_owner(pos, placer, itemstack, pointed_thing)
+	local meta = minetest.get_meta(pos)
+	meta:set_string("owner", placer:get_player_name())
+end
+
+local function toggle_palm_scanner(pos, node, player, itemstack, pointed_thing)
+	-- Some calling function don't send node param, but everybody sends a pos, so :
+	local node = minetest.get_node(pos)
+	if node.name == "scifi_nodes:palm_scanner_off" then
+		local meta = minetest.get_meta(pos)
+		meta:set_string("clicker", player:get_player_name()) -- need to keep it somewhere
+		minetest.swap_node(pos, {name = "scifi_nodes:palm_scanner_checking", param2 = node.param2})
+		minetest.sound_play("scifi_nodes_palm_scanner", {max_hear_distance = 8, pos = pos, gain = 1.0})
+		minetest.chat_send_player(player:get_player_name(), "Checking : please wait.")
+		minetest.get_node_timer(pos):start(2)
+	elseif node.name == "scifi_nodes:palm_scanner_checking" then
+		minetest.swap_node(pos,{name = "scifi_nodes:palm_scanner_on", param2 = node.param2})
+		mesecon.receptor_on(pos, get_switch_rules(node.param2))
+		minetest.get_node_timer(pos):start(2)
+	elseif node.name == "scifi_nodes:palm_scanner_on" then
+		minetest.sound_play("scifi_nodes_switch", {max_hear_distance = 8, pos = pos, gain = 1.0})
+		minetest.swap_node(pos, {name = "scifi_nodes:palm_scanner_off", param2 = node.param2})
+		mesecon.receptor_off (pos, get_switch_rules(node.param2))
+	end
+end
+
+-- palm_scanner_checking.on_timer
+local function check_owner(pos, elapsed)
+	local meta = minetest.get_meta(pos)
+	local owner = meta:get_string("owner")
+	local clicker = meta:get_string("clicker")
+	local node = minetest.get_node(pos)
+	if clicker == owner then
+		minetest.sound_play("scifi_nodes_scanner_granted", {max_hear_distance = 8, pos = pos, gain = 1.0})
+		minetest.chat_send_player(clicker, "Access granted !")
+		toggle_palm_scanner (pos)
+	else
+		minetest.chat_send_player(clicker, "Access refused !")
+		minetest.sound_play("scifi_nodes_scanner_refused", {max_hear_distance = 8, pos = pos, gain = 1.0})
+		minetest.swap_node(pos, {name = "scifi_nodes:palm_scanner_off", param2 = node.param2})
+		mesecon.receptor_off(pos, get_switch_rules(node.param2))
+	end
+end
+
+minetest.register_node("scifi_nodes:palm_scanner_off", {
+	description = "Palm scanner",
+	tiles = {"scifi_nodes_palm_scanner_off.png",},
+	inventory_image = "scifi_nodes_palm_scanner_off.png",
+	wield_image = "scifi_nodes_palm_scanner_on.png",
+	drawtype = "signlike",
+	sunlight_propagates = true,
+	buildable_to = false,
+	node_box = {type = "wallmounted",},
+	selection_box = {type = "wallmounted",},
+	paramtype = "light",
+	paramtype2 = "wallmounted",
+	groups = {cracky=1, oddly_breakable_by_hand=1, mesecon_needs_receiver = 1},
+	mesecons = {receptor = {state = mesecon.state.off,}},
+	after_place_node = set_scanner_owner,
+	on_rightclick = toggle_palm_scanner,
+	sounds = default.node_sound_glass_defaults(),
+})
+
+minetest.register_node("scifi_nodes:palm_scanner_checking", {
+	description = "Palm scanner",
+	tiles = {{
+		name = "scifi_nodes_palm_scanner_checking.png",
+		animation = {type = "vertical_frames",aspect_w = 16,aspect_h = 16,length = 1.5}
+	}},
+	drawtype = "signlike",
+	sunlight_propagates = true,
+	buildable_to = false,
+	node_box = {type = "wallmounted",},
+	selection_box = {type = "wallmounted",},
+	paramtype = "light",
+	paramtype2 = "wallmounted",
+	groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
+	drop = "scifi_nodes:palm_scanner_off",
+	sounds = default.node_sound_glass_defaults(),
+	on_timer = check_owner,
+})
+
+minetest.register_node("scifi_nodes:palm_scanner_on", {
+	description = "Palm scanner",
+	sunlight_propagates = true,
+	buildable_to = false,
+	tiles = {"scifi_nodes_palm_scanner_on.png",},
+	inventory_image = "scifi_nodes_palm_scanner_on.png",
+	wield_image = "scifi_nodes_palm_scanner_on.png",
+	drawtype = "signlike",
+	node_box = {type = "wallmounted",},
+	selection_box = {type = "wallmounted",},
+	paramtype = "light",
+	paramtype2 = "wallmounted",
+	light_source = 5,
+	groups = {cracky=1, oddly_breakable_by_hand=1, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
+	drop = "scifi_nodes:palm_scanner_off",
+	mesecons = {receptor = {state = mesecon.state.on,}},
+	on_timer = toggle_palm_scanner,
+	sounds = default.node_sound_glass_defaults(),
+})
+
+minetest.register_craft({
+	output = "scifi_nodes:palm_scanner_off 2",
+	recipe = {{"mesecons_powerplant:power_plant", "scifi_nodes:grey", ""}}
+})
diff --git a/settingtypes.txt b/settingtypes.txt
new file mode 100644
index 0000000..513c37b
--- /dev/null
+++ b/settingtypes.txt
@@ -0,0 +1,2 @@
+#    Doors can only be opened by mesecon signal
+scifi_nodes.doors_open_with_mesecon_only (disables right click on doors) bool true
diff --git a/sounds/scifi_nodes_access_granted.ogg b/sounds/scifi_nodes_access_granted.ogg
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index 0000000..ef5d541
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diff --git a/sounds/scifi_nodes_access_refused.ogg b/sounds/scifi_nodes_access_refused.ogg
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index 0000000..2a4083c
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diff --git a/sounds/scifi_nodes_digicode.ogg b/sounds/scifi_nodes_digicode.ogg
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index 0000000..4b5d4e4
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diff --git a/sounds/scifi_nodes_digicode_granted.ogg b/sounds/scifi_nodes_digicode_granted.ogg
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index 0000000..c3c2579
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diff --git a/sounds/scifi_nodes_digicode_refused.ogg b/sounds/scifi_nodes_digicode_refused.ogg
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index 0000000..92816e9
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diff --git a/sounds/scifi_nodes_palm_scanner.ogg b/sounds/scifi_nodes_palm_scanner.ogg
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similarity index 100%
rename from textures/scifi_nodes_door1a_bottom.png
rename to textures/scifi_nodes_door_Doom_bottom.png
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rename from textures/scifi_nodes_door1a_bottom0.png
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similarity index 100%
rename from textures/scifi_nodes_door1a_edge.png
rename to textures/scifi_nodes_door_Doom_edge.png
diff --git a/textures/scifi_nodes_door1a_inv.png b/textures/scifi_nodes_door_Doom_inv.png
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rename from textures/scifi_nodes_door1a_inv.png
rename to textures/scifi_nodes_door_Doom_inv.png
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rename from textures/scifi_nodes_door4a_topo.png
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diff --git a/textures/scifi_nodes_door3a_bottom.png b/textures/scifi_nodes_door_white_bottom.png
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rename from textures/scifi_nodes_door3a_bottom.png
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rename from textures/scifi_nodes_door3a_bottom0.png
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rename to textures/scifi_nodes_door_white_edge.png
diff --git a/textures/scifi_nodes_door3a_inv.png b/textures/scifi_nodes_door_white_inv.png
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rename from textures/scifi_nodes_door3a_inv.png
rename to textures/scifi_nodes_door_white_inv.png
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