Merge branch 'master' of https://github.com/Jeija/minetest-mod-mesecons into next

* Movestones no longer eat nodes when running off the track.
* Movestones no longer eat nodes when colliding with an mvps stopper.
* Movestones no longer pass through mvps stoppers.
* Movestones do not eat nodes when they are suddenly placed in the entity's path.

mesecons/init.lua

@@ -98,7 +98,7 @@ function mesecon:receptor_off(pos, rules)
 			if not mesecon:connected_to_receptor(np) then
 				mesecon:turnoff(np, rulename)
 			else
-				mesecon:changesignal(np, minetest.env:get_node(np), rulename)
+				mesecon:changesignal(np, minetest.env:get_node(np), rulename, mesecon.state.off)
 			end
 		end
 	end

mesecons/internal.lua

@@ -24,7 +24,7 @@
 -- SIGNALS
 -- mesecon:activate(pos, node)     --> Activates   the effector node at the specific pos (calls nodedef.mesecons.effector.action_on)
 -- mesecon:deactivate(pos, node)   --> Deactivates the effector node at the specific pos (calls nodedef.mesecons.effector.action_off)
--- mesecon:changesignal(pos, node) --> Changes     the effector node at the specific pos (calls nodedef.mesecons.effector.action_change)
+-- mesecon:changesignal(pos, node, rulename, newstate) --> Changes     the effector node at the specific pos (calls nodedef.mesecons.effector.action_change)
 
 -- RULES
 -- mesecon:add_rules(name, rules) | deprecated? --> Saves rules table by name
@@ -193,10 +193,10 @@ function mesecon:deactivate(pos, node, rulename)
 	end
 end
 
-function mesecon:changesignal(pos, node, rulename)
+function mesecon:changesignal(pos, node, rulename, newstate)
 	local effector = mesecon:get_effector(node.name)
 	if effector and effector.action_change then
-		effector.action_change (pos, node, rulename)
+		effector.action_change (pos, node, rulename, newstate)
 	end
 end
 
@@ -299,7 +299,7 @@ function mesecon:turnon(pos, rulename)
 			end
 		end
 	elseif mesecon:is_effector(node.name) then
-		mesecon:changesignal(pos, node, rulename)
+		mesecon:changesignal(pos, node, rulename, mesecon.state.on)
 		if mesecon:is_effector_off(node.name) then
 			mesecon:activate(pos, node, rulename)
 		end
@@ -322,7 +322,7 @@ function mesecon:turnoff(pos, rulename)
 			end
 		end
 	elseif mesecon:is_effector(node.name) then
-		mesecon:changesignal(pos, node, rulename)
+		mesecon:changesignal(pos, node, rulename, mesecon.state.off)
 		if mesecon:is_effector_on(node.name)
 		and not mesecon:is_powered(pos) then
 			mesecon:deactivate(pos, node, rulename)

mesecons/settings.lua

@@ -4,3 +4,4 @@ NEW_STYLE_WIRES  = true  -- true = new nodebox wires, false = old raillike wires
 PRESSURE_PLATE_INTERVAL = 0.1
 OBJECT_DETECTOR_RADIUS = 6
 PISTON_MAXIMUM_PUSH = 15
+MOVESTONE_MAXIMUM_PUSH = 100

mesecons_blinkyplant/init.lua

@@ -9,6 +9,7 @@ minetest.register_node("mesecons_blinkyplant:blinky_plant_off", {
 	walkable = false,
 	groups = {dig_immediate=3, mesecon = 2},
     	description="Blinky Plant",
+	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
 		type = "fixed",
 		fixed = {-0.1, -0.5, -0.1, 0.1, -0.5+0.6, 0.1},
@@ -29,6 +30,7 @@ minetest.register_node("mesecons_blinkyplant:blinky_plant_on", {
 	drop='"mesecons_blinkyplant:blinky_plant_off" 1',
 	light_source = LIGHT_MAX-7,
 	description = "Blinky Plant",
+	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
 		type = "fixed",
 		fixed = {-0.1, -0.5, -0.1, 0.1, -0.5+0.6, 0.1},

mesecons_button/init.lua

@@ -6,6 +6,7 @@ mesecon.button_turnoff = function (pos)
 	local node = minetest.env:get_node(pos)
 	if node.name=="mesecons_button:button_on" then --has not been dug
 		mesecon:swap_node(pos, "mesecons_button:button_off")
+		minetest.sound_play("mesecons_button_pop", {pos=pos})
 		local rules = mesecon.rules.buttonlike_get(node)
 		mesecon:receptor_off(pos, rules)
 	end
@@ -41,9 +42,11 @@ minetest.register_node("mesecons_button:button_off", {
 	description = "Button",
 	on_punch = function (pos, node)
 		mesecon:swap_node(pos, "mesecons_button:button_on")
-      	 	mesecon:receptor_on(pos, mesecon.rules.buttonlike_get(node))
+		mesecon:receptor_on(pos, mesecon.rules.buttonlike_get(node))
+		minetest.sound_play("mesecons_button_push", {pos=pos})
 		minetest.after(1, mesecon.button_turnoff, pos)
 	end,
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.off,
 		rules = mesecon.rules.buttonlike_get
@@ -80,6 +83,7 @@ minetest.register_node("mesecons_button:button_on", {
 	groups = {dig_immediate=2, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
 	drop = 'mesecons_button:button_off',
 	description = "Button",
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.on,
 		rules = mesecon.rules.buttonlike_get

mesecons_commandblock/init.lua

@@ -3,7 +3,7 @@ minetest.register_chatcommand("say", {
 	description = "Say <text> as the server",
 	privs = {server=true},
 	func = function(name, param)
-		minetest.chat_send_all(param)
+		minetest.chat_send_all(name .. ": " .. param)
 	end
 })
 
@@ -20,6 +20,20 @@ minetest.register_chatcommand("tell", {
 	end
 })
 
+minetest.register_chatcommand("hp", {
+	params = "<name> <value>",
+	description = "Set health of <name> to <value> hitpoints",
+	privs = {ban=true},
+	func = function(name, param)
+		local found, _, target, value = param:find("^([^%s]+)%s+(%d+)$")
+		if found == nil then
+			minetest.chat_send_player(name, "Invalid usage: " .. param)
+			return
+		end
+		minetest.get_player_by_name(target):set_hp(value)
+	end
+})
+
 local initialize_data = function(meta, player, command, param)
 	meta:set_string("formspec",
 		"invsize[9,6;]" ..
@@ -152,6 +166,7 @@ minetest.register_node("mesecons_commandblock:commandblock_off", {
 		local owner = minetest.env:get_meta(pos):get_string("owner")
 		return owner == "" or owner == player:get_player_name()
 	end,
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {effector = {
 		action_on = commandblock_action_on
 	}}
@@ -169,6 +184,7 @@ minetest.register_node("mesecons_commandblock:commandblock_on", {
 		local owner = minetest.env:get_meta(pos):get_string("owner")
 		return owner == "" or owner == player:get_player_name()
 	end,
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {effector = {
 		action_off = commandblock_action_off
 	}}

mesecons_compatibility/init.lua

@@ -153,6 +153,7 @@ doors:register_door("doors:door_wood", {
 	groups = {snappy=1,choppy=2,oddly_breakable_by_hand=2,flammable=2,door=1},
 	tiles_bottom = {"door_wood_b.png", "door_brown.png"},
 	tiles_top = {"door_wood_a.png", "door_brown.png"},
+	sounds = default.node_sound_wood_defaults(),
 })
 
 doors:register_door("doors:door_steel", {
@@ -162,4 +163,5 @@ doors:register_door("doors:door_steel", {
 	tiles_bottom = {"door_steel_b.png", "door_grey.png"},
 	tiles_top = {"door_steel_a.png", "door_grey.png"},
 	only_placer_can_open = true,
+	sounds = default.node_sound_stone_defaults(),
 })

mesecons_delayer/init.lua

@@ -110,6 +110,7 @@ minetest.register_node("mesecons_delayer:delayer_off_"..tostring(i), {
 	end,
 	delayer_time = delaytime,
 	delayer_onstate = "mesecons_delayer:delayer_on_"..tostring(i),
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {
 		receptor =
 		{

mesecons_detector/init.lua

@@ -1,7 +1,48 @@
 -- Object detector
--- Detects all entities in a certain radius
+-- Detects players in a certain radius
 -- The radius can be specified in mesecons/settings.lua
 
+local object_detector_make_formspec = function (pos)
+	local meta = minetest.env:get_meta(pos)
+	meta:set_string("formspec", "size[9,2.5]" ..
+		"field[0.3,  0;9,2;scanname;Name of player to scan for (empty for any):;${scanname}]"..
+		"field[0.3,1.5;4,2;digiline_channel;Digiline Channel (optional):;${digiline_channel}]")
+end
+
+local object_detector_on_receive_fields = function (pos, formname, fields)
+	local meta = minetest.env:get_meta(pos)
+	meta:set_string("scanname", fields.scanname)
+	meta:set_string("digiline_channel", fields.digiline_channel)
+	object_detector_make_formspec(pos)
+end
+
+-- returns true if player was found, false if not
+local object_detector_scan = function (pos)
+	local objs = minetest.env:get_objects_inside_radius(pos, OBJECT_DETECTOR_RADIUS)
+	for k, obj in pairs(objs) do
+		local isname = obj:get_player_name() -- "" is returned if it is not a player; "" ~= nil!
+		local scanname = minetest.env:get_meta(pos):get_string("scanname")
+		if (isname == scanname and isname ~= "") or (isname  ~= "" and scanname == "") then -- player with scanname found or not scanname specified
+			return true
+		end
+	end
+	return false
+end
+
+-- set player name when receiving a digiline signal on a specific channel
+object_detector_digiline = {
+	effector = {
+		action = function (pos, node, channel, msg)
+			local meta = minetest.env:get_meta(pos)
+			local active_channel = meta:get_string("digiline_channel")
+			if channel == active_channel then
+				meta:set_string("scanname", msg)
+				object_detector_make_formspec(pos)
+			end
+		end,
+	}
+}
+
 minetest.register_node("mesecons_detector:object_detector_off", {
 	tiles = {"default_steel_block.png", "default_steel_block.png", "jeija_object_detector_off.png", "jeija_object_detector_off.png", "jeija_object_detector_off.png", "jeija_object_detector_off.png"},
 	paramtype = "light",
@@ -10,7 +51,11 @@ minetest.register_node("mesecons_detector:object_detector_off", {
 	description="Player Detector",
 	mesecons = {receptor = {
 		state = mesecon.state.off
-	}}
+	}},
+	on_construct = object_detector_make_formspec,
+	on_receive_fields = object_detector_on_receive_fields,
+	sounds = default.node_sound_stone_defaults(),
+	digiline = object_detector_digiline
 })
 
 minetest.register_node("mesecons_detector:object_detector_on", {
@@ -21,15 +66,19 @@ minetest.register_node("mesecons_detector:object_detector_on", {
 	drop = 'mesecons_detector:object_detector_off',
 	mesecons = {receptor = {
 		state = mesecon.state.on
-	}}
+	}},
+	on_construct = object_detector_make_formspec,
+	on_receive_fields = object_detector_on_receive_fields,
+	sounds = default.node_sound_stone_defaults(),
+	digiline = object_detector_digiline
 })
 
 minetest.register_craft({
 	output = 'mesecons_detector:object_detector_off',
 	recipe = {
-		{"default:steelblock", '', "default:steelblock"},
-		{"default:steelblock", "mesecons_microcontroller:microcontroller0000", "default:steelblock"},
-		{"default:steelblock", "group:mesecon_conductor_craftable", "default:steelblock"},
+		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+		{"default:steel_ingot", "mesecons_luacontroller:luacontroller0000", "default:steel_ingot"},
+		{"default:steel_ingot", "group:mesecon_conductor_craftable", "default:steel_ingot"},
 	}
 })
 
@@ -37,19 +86,10 @@ minetest.register_abm(
 	{nodenames = {"mesecons_detector:object_detector_off"},
 	interval = 1.0,
 	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
-		local objs = minetest.env:get_objects_inside_radius(pos, OBJECT_DETECTOR_RADIUS)
-		for k, obj in pairs(objs) do
-			if obj:get_entity_name()~="mesecons_pistons:piston_pusher_sticky" and obj:get_entity_name()~="mesecons_pistons:piston_pusher_normal" and obj:get_player_name()~=nil then
-				if minetest.env:get_node({x=pos.x, y=pos.y-1, z=pos.z}).name=="default:sign_wall" then
-					if obj:get_player_name()~=minetest.env:get_meta({x=pos.x, y=pos.y-1, z=pos.z}):get_string("text") then
-						return
-					end
-				end
-				local objpos=obj:getpos()
-				minetest.env:add_node(pos, {name="mesecons_detector:object_detector_on"})
-				mesecon:receptor_on(pos)
-			end
+	action = function(pos)
+		if object_detector_scan(pos) then
+			mesecon:swap_node(pos, "mesecons_detector:object_detector_on")
+			mesecon:receptor_on(pos)
 		end
 	end,
 })
@@ -58,24 +98,9 @@ minetest.register_abm(
 	{nodenames = {"mesecons_detector:object_detector_on"},
 	interval = 1.0,
 	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
-		local objs = minetest.env:get_objects_inside_radius(pos, OBJECT_DETECTOR_RADIUS)
-		local objectfound=0
-		for k, obj in pairs(objs) do
-			if obj:get_entity_name()~="mesecons_pistons:piston_pusher_sticky" and obj:get_entity_name()~="mesecons_pistons:piston_pusher_normal" and obj~=nil 
-			and obj:get_player_name()~=nil then
-				if minetest.env:get_node({x=pos.x, y=pos.y-1, z=pos.z}).name=="default:sign_wall" then
-					if minetest.env:get_meta({x=pos.x, y=pos.y-1, z=pos.z}):get_string("text")== obj:get_player_name() then
-						objectfound=objectfound+1
-					end
-				else
--- Detected object is not piston pusher - will be changed if every entity has a type (like entity_type=mob)
-					objectfound=objectfound + 1
-				end
-			end
-		end
-		if objectfound==0 then
-			minetest.env:add_node(pos, {name="mesecons_detector:object_detector_off"})
+	action = function(pos)
+		if not object_detector_scan(pos) then
+			mesecon:swap_node(pos, "mesecons_detector:object_detector_off")
 			mesecon:receptor_off(pos)
 		end
 	end,

mesecons_extrawires/corner.lua

@@ -38,7 +38,7 @@ minetest.register_node("mesecons_extrawires:corner_on", {
 	selection_box = corner_selectionbox,
 	node_box = corner_nodebox,
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
-	drop = "mesecons_extrawires:insulated_off",
+	drop = "mesecons_extrawires:corner_off",
 	mesecons = {conductor = 
 	{
 		state = mesecon.state.on,

mesecons_extrawires/mesewire.lua

@@ -10,7 +10,7 @@ local mesewire_rules =
 
 minetest.register_node(":default:mese", {
 	description = "Mese Block",
-	tiles = {"default_mese_block.png"},
+	tiles = {minetest.registered_nodes["default:mese"].tiles[1]},
 	is_ground_content = true,
 	groups = {cracky=1},
 	sounds = default.node_sound_stone_defaults(),
@@ -22,7 +22,7 @@ minetest.register_node(":default:mese", {
 })
 
 minetest.register_node("mesecons_extrawires:mese_powered", {
-	tiles = {"default_mese_block.png^[brighten"},
+	tiles = {minetest.registered_nodes["default:mese"].tiles[1].."^[brighten"},
 	is_ground_content = true,
 	groups = {cracky=1, not_in_creative_inventory = 1},
 	sounds = default.node_sound_stone_defaults(),

mesecons_extrawires/vertical.lua

@@ -201,3 +201,17 @@ minetest.register_node("mesecons_extrawires:vertical_bottom_off", {
 	after_place_node	= vertical_update,
 	after_dig_node 		= vertical_update
 })
+
+minetest.register_craft({
+	output = "mesecons_extrawires:vertical_off 3",
+	recipe = {
+		{"mesecons:wire_00000000_off"},
+		{"mesecons:wire_00000000_off"},
+		{"mesecons:wire_00000000_off"}
+	}
+})
+
+minetest.register_craft({
+	output = "mesecons:wire_00000000_off",
+	recipe = {{"mesecons_extrawires:vertical_off"}}
+})

mesecons_gates/init.lua

@@ -156,6 +156,7 @@ for _, gate in ipairs(gates) do
 			end,
 			groups = groups,
 			drop = drop,
+			sounds = default.node_sound_stone_defaults(),
 			mesecons_gate = gate.name,
 			mesecons =
 			{

mesecons_hydroturbine/init.lua

@@ -23,6 +23,7 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_off", {
 			{-0.45, 1.15, -0.1, 0.45, 1.45, 0.1},
 			{-0.1, 1.15, -0.45, 0.1, 1.45, 0.45}},
 	},
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.off
 	}}
@@ -49,6 +50,7 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_on", {
 			{-0.5, 1.15, -0.1, 0.5, 1.45, 0.1},
 			{-0.1, 1.15, -0.5, 0.1, 1.45, 0.5}},
 	},
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.on
 	}}

mesecons_lamp/init.lua

@@ -22,6 +22,7 @@ minetest.register_node("mesecons_lamp:lamp_on", {
 	selection_box = mesecon_lamp_box,
 	groups = {dig_immediate=3,not_in_creative_inventory=1, mesecon_effector_on = 1},
 	drop='"mesecons_lamp:lamp_off" 1',
+	sounds = default.node_sound_glass_defaults(),
 	mesecons = {effector = {
 		action_off = function (pos, node)
 			mesecon:swap_node(pos, "mesecons_lamp:lamp_off")
@@ -42,6 +43,7 @@ minetest.register_node("mesecons_lamp:lamp_off", {
 	selection_box = mesecon_lamp_box,
 	groups = {dig_immediate=3, mesecon_receptor_off = 1, mesecon_effector_off = 1},
     	description="Meselamp",
+	sounds = default.node_sound_glass_defaults(),
 	mesecons = {effector = {
 		action_on = function (pos, node)
 			mesecon:swap_node(pos, "mesecons_lamp:lamp_on")

mesecons_lightstone/init.lua

@@ -4,6 +4,7 @@ function mesecon:lightstone_add(name, base_item, texture_off, texture_on)
 	inventory_image = minetest.inventorycube(texture_off),
 	groups = {cracky=2, mesecon_effector_off = 1, mesecon = 2},
 	description=name.." Lightstone",
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {effector = {
 		action_on = function (pos, node)
 			mesecon:swap_node(pos, "mesecons_lightstone:lightstone_" .. name .. "_on")
@@ -16,6 +17,7 @@ function mesecon:lightstone_add(name, base_item, texture_off, texture_on)
 	groups = {cracky=2,not_in_creative_inventory=1, mesecon = 2},
 	drop = "node mesecons_lightstone:lightstone_" .. name .. "_off 1",
 	light_source = LIGHT_MAX-2,
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {effector = {
 		action_off = function (pos, node)
 			mesecon:swap_node(pos, "mesecons_lightstone:lightstone_" .. name .. "_off")

mesecons_luacontroller/depends.txt

@@ -0,0 +1 @@
+mesecons

mesecons_luacontroller/init.lua

@@ -0,0 +1,510 @@
+-- Reference
+-- ports = get_real_portstates(pos): gets if inputs are powered from outside
+-- newport = merge_portstates(state1, state2): just does result = state1 or state2 for every port
+-- action_setports(pos, ports, vports): activates/deactivates the mesecons according to the portstates (helper for action)
+-- action(pos, ports): Applies new portstates to a luacontroller at pos
+-- lc_update(pos): updates the controller at pos by executing the code
+-- reset_meta (pos, code, errmsg): performs a software-reset, installs new code and prints error messages
+-- reset (pos): performs a hardware reset, turns off all ports
+--
+-- The Sandbox
+-- The whole code of the controller runs in a sandbox,
+-- a very restricted environment.
+-- However, as this does not prevent you from using e.g. loops,
+-- we need to check for these prohibited commands first.
+-- Actually the only way to damage the server is to
+-- use too much memory from the sandbox.
+-- You can add more functions to the environment
+-- (see where local env is defined)
+-- Something nice to play is is appending minetest.env to it.
+
+local BASENAME = "mesecons_luacontroller:luacontroller"
+
+local rules = {}
+rules.a = {x = -1, y = 0, z =  0, name="A"}
+rules.b = {x =  0, y = 0, z =  1, name="B"}
+rules.c = {x =  1, y = 0, z =  0, name="C"}
+rules.d = {x =  0, y = 0, z = -1, name="D"}
+
+------------------
+-- Action stuff --
+------------------
+-- These helpers are required to set the portstates of the luacontroller
+
+local get_real_portstates = function(pos) -- determine if ports are powered (by itself or from outside)
+	ports = {
+		a = mesecon:is_power_on(mesecon:addPosRule(pos, rules.a))
+			and mesecon:rules_link(mesecon:addPosRule(pos, rules.a), pos),
+		b = mesecon:is_power_on(mesecon:addPosRule(pos, rules.b))
+			and mesecon:rules_link(mesecon:addPosRule(pos, rules.b), pos),
+		c = mesecon:is_power_on(mesecon:addPosRule(pos, rules.c))
+			and mesecon:rules_link(mesecon:addPosRule(pos, rules.c), pos),
+		d = mesecon:is_power_on(mesecon:addPosRule(pos, rules.d))
+			and mesecon:rules_link(mesecon:addPosRule(pos, rules.d), pos),
+	}
+	return ports
+end
+
+local merge_portstates = function (ports, vports)
+	local npo = {a=false, b=false, c=false, d=false}
+	npo.a = vports.a or ports.a
+	npo.b = vports.b or ports.b
+	npo.c = vports.c or ports.c
+	npo.d = vports.d or ports.d
+	return npo
+end
+
+local generate_name = function (ports, overwrite)
+	local overwrite = overwrite or {}
+	local d = overwrite.d or (ports.d and 1 or 0)
+	local c = overwrite.c or (ports.c and 1 or 0)
+	local b = overwrite.b or (ports.b and 1 or 0)
+	local a = overwrite.a or (ports.a and 1 or 0)
+	return BASENAME..d..c..b..a
+end
+
+local setport = function (pos, rule, ignore, state, ports)
+	local ignorename = generate_name(ports, ignore)
+	mesecon:swap_node(pos, ignorename)
+	if state then
+		mesecon:receptor_on(pos, {rule})
+	else
+		mesecon:receptor_off(pos, {rule})
+	end
+	if minetest.env:get_node(pos).name ~= ignorename then
+		return true -- overridden by second process
+	end
+	return false -- success
+end
+
+local action = function (pos, ports, forcereset)
+	local name = minetest.env:get_node(pos).name
+	local vports = minetest.registered_nodes[name].virtual_portstates
+	local newname = generate_name(ports)
+
+	if name ~= newname and vports then
+		local rules_on  = {}
+		local rules_off = {}
+		local ignore = {}
+
+		local interrupted
+		if ports.a ~= vports.a then interrupted = setport(pos, rules.a, {a = 2}, ports.a, ports) end
+		if interrupted and not forcereset then return end
+		if ports.b ~= vports.b then interrupted = setport(pos, rules.b, {b = 2}, ports.b, ports) end
+		if interrupted and not forcereset then return end
+		if ports.c ~= vports.c then interrupted = setport(pos, rules.c, {c = 2}, ports.c, ports) end
+		if interrupted and not forcereset then return end
+		if ports.d ~= vports.d then interrupted = setport(pos, rules.d, {d = 2}, ports.d, ports) end
+		if interrupted and not forcereset then return end
+
+		mesecon:swap_node(pos, newname)
+	end
+end
+
+local delayedaction = function (params)
+	action(params.pos, params.ports)
+end
+
+--------------------
+-- Overheat stuff --
+--------------------
+
+local heat = function (meta) -- warm up
+	h = meta:get_int("heat")
+	if h ~= nil then
+		meta:set_int("heat", h + 1)
+	end
+end
+
+local cool = function (meta) -- cool down after a while
+	h = meta:get_int("heat")
+	if h ~= nil then
+		meta:set_int("heat", h - 1)
+	end
+end
+
+local overheat = function (meta) -- determine if too hot
+	h = meta:get_int("heat")
+	if h == nil then return true end -- if nil then overheat
+	if h > 20 then 
+		return true
+	else 
+		return false 
+	end
+end
+
+local overheat_off = function(pos)
+	mesecon:receptor_off(pos, mesecon.rules.flat)
+end
+
+-------------------
+-- Parsing stuff --
+-------------------
+
+local code_prohibited = function(code)
+	-- Clean code
+	local prohibited = {"while", "for", "repeat", "until", "function"}
+	for _, p in ipairs(prohibited) do
+		if string.find(code, p) then
+			return "Prohibited command: "..p
+		end
+	end
+end
+
+local safeprint = function(param)
+	print(dump(param))
+end
+
+local interrupt = function(params)
+	lc_update(params.pos, {type="interrupt", iid = params.iid})
+end
+
+local getinterrupt = function(pos)
+	local interrupt = function (time, iid) -- iid = interrupt id
+		if type(time) ~= "number" then return end
+		local iid = iid or math.random()
+		local meta = minetest.env:get_meta(pos)
+		local interrupts = minetest.deserialize(meta:get_string("lc_interrupts")) or {}
+		table.insert (interrupts, iid)
+		meta:set_string("lc_interrupts", minetest.serialize(interrupts))
+		minetest.after(time, interrupt, {pos=pos, iid = iid})
+	end
+	return interrupt
+end
+
+local getdigiline_send = function (pos)
+	local digiline_send = function (channel, msg)
+		if digiline then
+			digiline:receptor_send(pos, digiline.rules.default, channel, msg)
+		end
+	end
+	return digiline_send
+end
+
+local create_environment = function(pos, mem, event)
+	-- Gather variables for the environment
+	local vports = minetest.registered_nodes[minetest.env:get_node(pos).name].virtual_portstates
+	vports = {a = vports.a, b = vports.b, c = vports.c, d = vports.d}
+	local rports = get_real_portstates(pos)
+
+	return {
+			print = safeprint,
+			pin = merge_portstates(vports, rports),
+			port = vports,
+			interrupt = getinterrupt(pos),
+			digiline_send = getdigiline_send(pos),
+			mem = mem,
+			tostring = tostring,
+			tonumber = tonumber,
+			string = {
+				byte = string.byte,
+				char = string.char,
+				find = string.find,
+				format = string.format,
+				gmatch = string.gmatch,
+				gsub = string.gsub,
+				len = string.len,
+				lower = string.lower,
+				match = string.match,
+				rep = string.rep,
+				reverse = string.reverse,
+				sub = string.sub,
+			},
+			math = {
+				abs = math.abs,
+				acos = math.acos,
+				asin = math.asin,
+				atan = math.atan,
+				atan2 = math.atan2,
+				ceil = math.ceil,
+				cos = math.cos,
+				cosh = math.cosh,
+				deg = math.deg,
+				exp = math.exp,
+				floor = math.floor,
+				fmod = math.fmod,
+				frexp = math.frexp,
+				huge = math.huge,
+				ldexp = math.ldexp,
+				log = math.log,
+				log10 = math.log10,
+				max = math.max,
+				min = math.min,
+				modf = math.modf,
+				pi = math.pi,
+				pow = math.pow,
+				rad = math.rad,
+				random = math.random,
+				sin = math.sin,
+				sinh = math.sinh,
+				sqrt = math.sqrt,
+				tan = math.tan,
+				tanh = math.tanh,
+			},
+			table = {
+				insert = table.insert,
+				maxn = table.maxn,
+				remove = table.remove,
+				sort = table.sort
+			},
+			event = event,
+	}
+end
+
+local create_sandbox = function (code, env)
+	-- Create Sandbox
+	if code:byte(1) == 27 then
+		return _, "You Hacker You! Don't use binary code!"
+	end
+	f, msg = loadstring(code)
+	if not f then return _, msg end
+	setfenv(f, env)
+	return f
+end
+
+local do_overheat = function (pos, meta)
+	-- Overheat protection
+	heat(meta)
+	minetest.after(0.5, cool, meta)
+	if overheat(meta) then
+		minetest.env:remove_node(pos)
+		minetest.after(0.2, overheat_off, pos) -- wait for pending operations
+		minetest.env:add_item(pos, BASENAME.."0000")
+		return true
+	end
+end
+
+local load_memory = function(meta)
+	return minetest.deserialize(meta:get_string("lc_memory")) or {}
+end
+
+local save_memory = function(meta, mem)
+	meta:set_string("lc_memory", minetest.serialize(mem))
+end
+
+local interrupt_allow = function (meta, event)
+	if event.type ~= "interrupt" then return true end
+
+	local interrupts = minetest.deserialize(meta:get_string("lc_interrupts")) or {}
+	for _, i in ipairs(interrupts) do
+		if minetest.serialize(i) == minetest.serialize(event.iid) then
+			return true
+		end
+	end
+
+	return false
+end
+
+local ports_invalid = function (var)
+	if type(var) == "table" then
+		return false
+	end
+	return "The ports you set are invalid"
+end
+
+----------------------
+-- Parsing function --
+----------------------
+
+lc_update = function (pos, event)
+	local meta = minetest.env:get_meta(pos)
+	if not interrupt_allow(meta, event) then return end
+	if do_overheat(pos, meta) then return end
+
+	-- load code & mem from memory
+	local mem  = load_memory(meta)
+	local code = meta:get_string("code")
+
+	-- make sure code is ok and create environment
+	local prohibited = code_prohibited(code)
+	if 	prohibited then return prohibited end
+	local env = create_environment(pos, mem, event)
+
+	-- create the sandbox and execute code
+	local chunk, msg = create_sandbox (code, env)
+	if not chunk then return msg end
+	local success, msg = pcall(f)
+	if not success then return msg end
+	if ports_invalid(env.port) then return ports_invalid(env.port) end
+
+	save_memory(meta, mem)
+
+	-- Actually set the ports
+	minetest.after(0, delayedaction, {pos = pos, ports = env.port})
+end
+
+local reset_meta = function(pos, code, errmsg)
+	local meta = minetest.env:get_meta(pos)
+	meta:set_string("code", code)
+	if minetest.formspec_escape then
+		code = minetest.formspec_escape(code or "")
+		errmsg = minetest.formspec_escape(errmsg or "")
+	else
+		code = string.gsub(code or "", "%[", "(") -- would otherwise
+		code = string.gsub(code, "%]", ")") -- corrupt formspec
+		errmsg = string.gsub(errmsg or "", "%[", "(") -- would otherwise
+		errmsg = string.gsub(errmsg, "%]", ")") -- corrupt formspec
+	end
+	meta:set_string("formspec", "size[10,8]"..
+		"background[-0.2,-0.25;10.4,8.75;jeija_luac_background.png]"..
+		"textarea[0.2,0.6;10.2,5;code;;"..code.."]"..
+		"image_button[3.75,6;2.5,1;jeija_luac_runbutton.png;program;]"..
+		"image_button_exit[9.72,-0.25;0.425,0.4;jeija_close_window.png;exit;]"..
+		"label[0.1,5;"..errmsg.."]")
+	meta:set_int("heat", 0)
+end
+
+local reset = function (pos)
+	minetest.env:get_meta(pos):set_string("lc_interrupts", "")
+	action(pos, {a=false, b=false, c=false, d=false}, true)
+end
+
+--        ______
+--       |
+-- |   | |
+-- |___| |        __       ___  _   __         _  _
+-- |     |       |  | |\ |  |  |_| |  | |  |  |_ |_|
+-- |     |______ |__| | \|  |  | \ |__| |_ |_ |_ |\
+--
+
+-----------------------
+-- Node Registration --
+-----------------------
+
+local output_rules={}
+local input_rules={}
+
+local nodebox = {
+		type = "fixed",
+		fixed = {
+			{ -8/16, -8/16, -8/16, 8/16, -7/16, 8/16 }, -- bottom slab
+			{ -5/16, -7/16, -5/16, 5/16, -6/16, 5/16 }, -- circuit board
+			{ -3/16, -6/16, -3/16, 3/16, -5/16, 3/16 }, -- IC
+		}
+	}
+
+local selectionbox = {
+		type = "fixed",
+		fixed = { -8/16, -8/16, -8/16, 8/16, -5/16, 8/16 },
+	}
+
+local digiline = {
+	receptor = {},
+	effector = {
+		action = function (pos, node, channel, msg)
+			lc_update (pos, {type = "digiline", channel = channel, msg = msg})
+		end
+	}
+}
+
+for a = 0, 2 do -- 0 = off; 1 = on; 2 = ignore
+for b = 0, 2 do
+for c = 0, 2 do
+for d = 0, 2 do
+
+local cid = tostring(d)..tostring(c)..tostring(b)..tostring(a)
+local nodename = BASENAME..cid
+local top = "jeija_luacontroller_top.png"
+if a == 1 then
+	top = top.."^jeija_luacontroller_LED_A.png"
+end
+if b == 1 then
+	top = top.."^jeija_luacontroller_LED_B.png"
+end
+if c == 1 then
+	top = top.."^jeija_luacontroller_LED_C.png"
+end
+if d == 1 then
+	top = top.."^jeija_luacontroller_LED_D.png"
+end
+
+if a + b + c + d ~= 0 then
+	groups = {dig_immediate=2, not_in_creative_inventory=1}
+else
+	groups = {dig_immediate=2}
+end
+
+output_rules[cid] = {}
+input_rules[cid] = {}
+if (a == 1) then table.insert(output_rules[cid], rules.a) end
+if (b == 1) then table.insert(output_rules[cid], rules.b) end
+if (c == 1) then table.insert(output_rules[cid], rules.c) end
+if (d == 1) then table.insert(output_rules[cid], rules.d) end
+
+if (a == 0) then table.insert(input_rules[cid], rules.a) end
+if (b == 0) then table.insert(input_rules[cid], rules.b) end
+if (c == 0) then table.insert(input_rules[cid], rules.c) end
+if (d == 0) then table.insert(input_rules[cid], rules.d) end
+
+local mesecons = {
+	effector =
+	{
+		rules = input_rules[cid],
+		action_change = function (pos, _, rulename, newstate)
+			lc_update(pos, {type=newstate,  pin=rulename})
+		end,
+	},
+	receptor =
+	{
+		state = mesecon.state.on,
+		rules = output_rules[cid]
+	}
+}
+
+minetest.register_node(nodename, {
+	description = "Luacontroller",
+	drawtype = "nodebox",
+	tiles = {
+		top,
+		"jeija_microcontroller_bottom.png",
+		"jeija_microcontroller_sides.png",
+		"jeija_microcontroller_sides.png",
+		"jeija_microcontroller_sides.png",
+		"jeija_microcontroller_sides.png"
+		},
+
+	inventory_image = top,
+	paramtype = "light",
+	groups = groups,
+	drop = BASENAME.."0000",
+	sunlight_propagates = true,
+	selection_box = selectionbox,
+	node_box = nodebox,
+	on_construct = reset_meta,
+	on_receive_fields = function(pos, formname, fields)
+		reset(pos)
+		reset_meta(pos, fields.code)
+		local err = lc_update(pos, {type="program"})
+		if err then print(err) end
+		reset_meta(pos, fields.code, err)
+	end,
+	sounds = default.node_sound_stone_defaults(),
+	mesecons = mesecons,
+	digiline = digiline,
+	is_luacontroller = true,
+	virtual_portstates = {	a = a == 1, -- virtual portstates are
+					b = b == 1, -- the ports the the
+					c = c == 1, -- controller powers itself
+					d = d == 1},-- so those that light up
+	after_dig_node = function (pos, node)
+		mesecon:receptor_off(pos, output_rules)
+	end,
+})
+end
+end
+end
+end
+
+------------------------
+-- Craft Registration --
+------------------------
+
+minetest.register_craft({
+	output = BASENAME.."0000 2",
+	recipe = {
+		{'mesecons_materials:silicon', 'mesecons_materials:silicon', 'group:mesecon_conductor_craftable'},
+		{'mesecons_materials:silicon', 'mesecons_materials:silicon', 'group:mesecon_conductor_craftable'},
+		{'group:mesecon_conductor_craftable', 'group:mesecon_conductor_craftable', ''},
+	}
+})
+

mesecons_microcontroller/init.lua

@@ -128,6 +128,7 @@ minetest.register_node(nodename, {
 		yc_reset (pos)
 		update_yc(pos)
 	end,
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = mesecons,
 	after_dig_node = function (pos, node)
 		rules = mesecon:get_rules(node.name)

mesecons_movestones/init.lua

@@ -61,21 +61,11 @@ minetest.register_node("mesecons_movestones:movestone", {
 	legacy_facedir_simple = true,
 	groups = {cracky=3},
     	description="Movestone",
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {effector = {
 		action_on = function (pos, node)
 			local direction=mesecon:get_movestone_direction(pos)
 			if not direction then return end
-			local checknode={}
-			local collpos={x=pos.x, y=pos.y, z=pos.z}
-			repeat -- Check if it collides with a stopper
-				collpos = mesecon:addPosRule(collpos, direction)
-				checknode=minetest.env:get_node(collpos)
-				if mesecon:is_mvps_stopper(checknode.name, direction) then 
-					return
-				end
-			until checknode.name=="air"
-			or checknode.name=="ignore" 
-			or not(minetest.registered_nodes[checknode.name].liquidtype == "none")
 			minetest.env:remove_node(pos)
 			mesecon:update_autoconnect(pos)
 			minetest.env:add_entity(pos, "mesecons_movestones:movestone_entity")
@@ -97,17 +87,27 @@ minetest.register_entity("mesecons_movestones:movestone_entity", {
 
 	on_step = function(self, dtime)
 		local pos = self.object:getpos()
+		pos.x, pos.y, pos.z = math.floor(pos.x), math.floor(pos.y), math.floor(pos.z)
 		local direction = mesecon:get_movestone_direction(pos)
 
 		if not direction then
+			local name = minetest.env:get_node(pos).name
+			if name ~= "air" and name ~= "ignore" and minetest.registered_nodes[name].liquidtype == "none" then
+				mesecon:mvps_push(pos, direction, MOVESTONE_MAXIMUM_PUSH)
+			end
+			minetest.env:add_node(pos, {name="mesecons_movestones:movestone"})
+			self.object:remove()
+			return
+		end
+
+		local np = mesecon:addPosRule(pos, direction)
+		if not mesecon:mvps_push(np, direction, MOVESTONE_MAXIMUM_PUSH) then
 			minetest.env:add_node(pos, {name="mesecons_movestones:movestone"})
 			self.object:remove()
 			return
 		end
 
 		self.object:setvelocity({x=direction.x*2, y=direction.y*2, z=direction.z*2})
-
-		mesecon:mvps_push(pos, direction, 100)
 	end,
 })
 
@@ -131,30 +131,11 @@ minetest.register_node("mesecons_movestones:sticky_movestone", {
 	legacy_facedir_simple = true,
 	groups = {cracky=3},
     	description="Sticky Movestone",
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {effector = {
 		action_on = function (pos, node)
 			local direction=mesecon:get_movestone_direction(pos)
 			if not direction then return end
-			local checknode={}
-			local collpos={x=pos.x, y=pos.y, z=pos.z}
-			repeat -- Check if it collides with a stopper
-				collpos = mesecon:addPosRule(collpos, direction)
-				checknode=minetest.env:get_node(collpos)
-				if mesecon:is_mvps_stopper(checknode.name, direction) then 
-					return 
-				end
-			until checknode.name=="air"
-			or checknode.name=="ignore" 
-			or not(minetest.registered_nodes[checknode.name].liquidtype == "none")  
-			repeat -- Check if it collides with a stopper (pull direction)
-				collpos={x=collpos.x-direction.x, y=collpos.y-direction.y, z=collpos.z-direction.z}
-				checknode=minetest.env:get_node(collpos)
-				if mesecon:is_mvps_stopper(checknode.name, direction) then
-					return 
-				end
-			until checknode.name=="air"
-			or checknode.name=="ignore" 
-			or not(minetest.registered_nodes[checknode.name].liquidtype == "none")
 			minetest.env:remove_node(pos)
 			mesecon:update_autoconnect(pos)
 			minetest.env:add_entity(pos, "mesecons_movestones:sticky_movestone_entity")
@@ -183,10 +164,21 @@ minetest.register_entity("mesecons_movestones:sticky_movestone_entity", {
 
 	on_step = function(self, dtime)
 		local pos = self.object:getpos()
-		local colp = pos
-		local direction=mesecon:get_movestone_direction(colp)
+		pos.x, pos.y, pos.z = math.floor(pos.x), math.floor(pos.y), math.floor(pos.z)
+		local direction = mesecon:get_movestone_direction(pos)
 
 		if not direction then
+			local name = minetest.env:get_node(pos).name
+			if name ~= "air" and name ~= "ignore" and minetest.registered_nodes[name].liquidtype == "none" then
+				mesecon:mvps_push(pos, direction, MOVESTONE_MAXIMUM_PUSH)
+			end
+			minetest.env:add_node(pos, {name="mesecons_movestones:sticky_movestone"})
+			self.object:remove()
+			return
+		end
+
+		local np = mesecon:addPosRule(pos, direction)
+		if not mesecon:mvps_push(np, direction, MOVESTONE_MAXIMUM_PUSH) then
 			minetest.env:add_node(pos, {name="mesecons_movestones:sticky_movestone"})
 			self.object:remove()
 			return
@@ -194,8 +186,6 @@ minetest.register_entity("mesecons_movestones:sticky_movestone_entity", {
 
 		self.object:setvelocity({x=direction.x*2, y=direction.y*2, z=direction.z*2})
 
-		mesecon:mvps_push(pos, direction, 100)
-
 		--STICKY
 		mesecon:mvps_pull_all(pos, direction)
 	end,

mesecons_mvps/init.lua

@@ -57,6 +57,7 @@ function mesecon:mvps_push(pos, dir, maximum) -- pos: pos of mvps; dir: directio
 
 	-- remove all nodes
 	for _, n in ipairs(nodes) do
+		n.meta = minetest.env:get_meta(n.pos):to_table()
 		minetest.env:remove_node(n.pos)
 	end
 
@@ -70,6 +71,7 @@ function mesecon:mvps_push(pos, dir, maximum) -- pos: pos of mvps; dir: directio
 	for _, n in ipairs(nodes) do
 		np = mesecon:addPosRule(n.pos, dir)
 		minetest.env:add_node(np, n.node)
+		minetest.env:get_meta(np):from_table(n.meta)
 	end
 
 	for i in ipairs(nodes) do
@@ -85,8 +87,10 @@ function mesecon:mvps_pull_single(pos, dir) -- pos: pos of mvps; direction: dire
 
 	if minetest.registered_nodes[nn.name].liquidtype == "none"
 	and not mesecon:is_mvps_stopper(nn, {x = -dir.x, y = -dir.y, z = -dir.z}, {{pos = np, node = nn}}, 1) then
+		local meta = minetest.env:get_meta(np):to_table()
 		minetest.env:remove_node(np)
 		minetest.env:add_node(pos, nn)
+		minetest.env:get_meta(pos):from_table(meta)
 
 		nodeupdate(np)
 		nodeupdate(pos)
@@ -107,7 +111,8 @@ function mesecon:mvps_pull_all(pos, direction) -- pos: pos of mvps; direction: d
 
 		local oldpos = {x=lpos2.x+direction.x, y=lpos2.y+direction.y, z=lpos2.z+direction.z}
 		repeat
-			minetest.env:add_node(oldpos, {name=minetest.env:get_node(lpos2).name})
+			lnode2 = minetest.env:get_node(lpos2)
+			minetest.env:add_node(oldpos, {name=lnode2.name})
 			nodeupdate(oldpos)
 			oldpos = {x=lpos2.x, y=lpos2.y, z=lpos2.z}
 			lpos2.x = lpos2.x-direction.x
@@ -118,6 +123,5 @@ function mesecon:mvps_pull_all(pos, direction) -- pos: pos of mvps; direction: d
 		minetest.env:remove_node(oldpos)
 end
 
-mesecon:register_mvps_stopper("default:chest")
 mesecon:register_mvps_stopper("default:chest_locked")
 mesecon:register_mvps_stopper("default:furnace")

mesecons_noteblock/init.lua

@@ -14,6 +14,7 @@ minetest.register_node("mesecons_noteblock:noteblock", {
 		minetest.env:add_node(pos, {name = node.name, param2 = param2})
 		mesecon.noteblock_play(pos, param2)
 	end,
+	sounds = default.node_sound_wood_defaults(),
 	mesecons = {effector = { -- play sound when activated
 		action_on = function (pos, node)
 			mesecon.noteblock_play(pos, node.param2)

mesecons_pistons/init.lua

@@ -1,43 +1,62 @@
 -- Get mesecon rules of pistons
-piston_rules =
-{{x=0,  y=0,  z=1}, --everything apart from z- (pusher side)
- {x=1,  y=0,  z=0},
- {x=-1, y=0,  z=0},
- {x=1,  y=1,  z=0},
- {x=1,  y=-1, z=0},
- {x=-1, y=1,  z=0},
- {x=-1, y=-1, z=0},
- {x=0,  y=1,  z=1},
- {x=0,  y=-1, z=1}}
+local piston_rules =
+{{x = 0,  z = 0,  y = 1}, -- everything apart from pusher side
+ {x = 1,  z = 0,  y = 1},
+ {x = 1,  z = 1,  y = 1},
+ {x = 0,  z = 1,  y = 1},
+ {x =-1,  z = 0,  y = 1},
+ {x =-1,  z =-1,  y = 1},
+ {x = 0,  z =-1,  y = 1},
+ {x = 1,  z =-1,  y = 1},
+ {x =-1,  z = 1,  y = 1},
 
-local piston_get_rules = function (node)
-	local rules = piston_rules
-	for i = 1, node.param2 do
+ {x = 1,  z = 0,  y = 0},
+ {x = 1,  z = 1,  y = 0},
+ {x = 0,  z = 1,  y = 0},
+ {x =-1,  z = 0,  y = 0},
+ {x =-1,  z =-1,  y = 0},
+--{x = 0,  z =-1,  y = 0}, pusher side --> disabled
+ {x = 1,  z =-1,  y = 0},
+ {x =-1,  z = 1,  y = 0},
+
+ {x = 0,  z = 0,  y =-1},
+ {x = 1,  z = 0,  y =-1},
+ {x = 1,  z = 1,  y =-1},
+ {x = 0,  z = 1,  y =-1},
+ {x =-1,  z = 0,  y =-1},
+ {x =-1,  z =-1,  y =-1},
+ {x = 0,  z =-1,  y =-1},
+ {x = 1,  z =-1,  y =-1},
+ {x =-1,  z = 1,  y =-1}}
+
+local piston_rotate_rules = function(param2, rules)
+	if param2 == 4 then
+		return mesecon:rotate_rules_up(mesecon:rotate_rules_left(rules))
+	end -- face up
+	if param2 == 6 then
+		return mesecon:rotate_rules_down(mesecon:rotate_rules_left(rules))
+	end -- face up
+
+	rules = mesecon:rotate_rules_down(rules)
+	for i = 1, param2 do
 		rules = mesecon:rotate_rules_left(rules)
 	end
 	return rules
 end
 
-piston_facedir_direction = function (node)
-	local rules = {{x = 0, y = 0, z = -1}}
-	for i = 1, node.param2 do
-		rules = mesecon:rotate_rules_left(rules)
-	end
-	return rules[1]
+local piston_get_rules = function (node)
+	return piston_rotate_rules(node.param2, piston_rules)
 end
 
-piston_get_direction = function (dir, node)
-	if type(dir) == "function" then
-		return dir(node)
-	else
-		return dir
-	end
+piston_facedir_direction = function (node)
+	local rules = piston_rotate_rules(node.param2, {{x = 0, y = 0, z =-1}})
+	return rules[1]
 end
 
 local piston_remove_pusher = function (pos, node)
 	pistonspec = minetest.registered_nodes[node.name].mesecons_piston
 
-	dir = piston_get_direction(pistonspec.dir, node)
+	dir = piston_facedir_direction(node)
 	local pusherpos = mesecon:addPosRule(pos, dir)
 	local pushername = minetest.env:get_node(pusherpos).name
 
@@ -50,7 +69,7 @@ end
 local piston_on = function (pos, node)
 	local pistonspec = minetest.registered_nodes[node.name].mesecons_piston
 
-	dir = piston_get_direction(pistonspec.dir, node)
+	dir = piston_facedir_direction(node)
 	local np = mesecon:addPosRule(pos, dir)
 	success, stack = mesecon:mvps_push(np, dir, PISTON_MAXIMUM_PUSH)
 	if success then
@@ -66,7 +85,7 @@ local piston_off = function (pos, node)
 	piston_remove_pusher (pos, node)
 
 	if pistonspec.sticky then
-		dir = piston_get_direction(pistonspec.dir, node)
+		dir = piston_facedir_direction(node)
 		pullpos = mesecon:addPosRule(pos, dir)
 		stack = mesecon:mvps_pull_single(pullpos, dir)
 		mesecon:mvps_process_stack(stack)
@@ -81,16 +100,20 @@ local piston_orientate = function (pos, placer)
 	local pitch = placer:get_look_pitch() * (180 / math.pi)
 
 	local node = minetest.env:get_node(pos)
-	local pistonspec = minetest.registered_nodes[node.name].mesecons_piston
-	if pitch > 55 then --looking upwards
-		minetest.env:add_node(pos, {name=pistonspec.piston_down})
-	elseif pitch < -55 then --looking downwards
-		minetest.env:add_node(pos, {name=pistonspec.piston_up})
+
+	if pitch > 55 then --looking upwards --> face down
+		minetest.env:set_node(pos, {name = node.name, param2 = 6})
+	elseif pitch < -55 then --looking downwards --> face up
+		minetest.env:set_node(pos, {name = node.name, param2 = 4})
 	end
 end
 
+--
+--
+-- Node Registration
+--
+--
 
--- Horizontal pistons
 
 local pt = 3/16 -- pusher thickness
 
@@ -115,7 +138,6 @@ local piston_on_box = {
 local pistonspec_normal = {
 	offname = "mesecons_pistons:piston_normal_off",
 	onname = "mesecons_pistons:piston_normal_on",
-	dir = piston_facedir_direction,
 	pusher = "mesecons_pistons:piston_pusher_normal",
 	piston_down = "mesecons_pistons:piston_down_normal_off",
 	piston_up   = "mesecons_pistons:piston_up_normal_off",
@@ -136,6 +158,7 @@ minetest.register_node("mesecons_pistons:piston_normal_off", {
 	paramtype2 = "facedir",
 	after_place_node = piston_orientate,
 	mesecons_piston = pistonspec_normal,
+	sounds = default.node_sound_wood_defaults(),
 	mesecons = {effector={
 		action_on = piston_on,
 		rules = piston_get_rules
@@ -163,6 +186,7 @@ minetest.register_node("mesecons_pistons:piston_normal_on", {
 	node_box = piston_on_box,
 	selection_box = piston_on_box,
 	mesecons_piston = pistonspec_normal,
+	sounds = default.node_sound_wood_defaults(),
 	mesecons = {effector={
 		action_off = piston_off,
 		rules = piston_get_rules
@@ -193,7 +217,6 @@ minetest.register_node("mesecons_pistons:piston_pusher_normal", {
 local pistonspec_sticky = {
 	offname = "mesecons_pistons:piston_sticky_off",
 	onname = "mesecons_pistons:piston_sticky_on",
-	dir = piston_facedir_direction,
 	pusher = "mesecons_pistons:piston_pusher_sticky",
 	sticky = true,
 	piston_down = "mesecons_pistons:piston_down_sticky_off",
@@ -215,6 +238,7 @@ minetest.register_node("mesecons_pistons:piston_sticky_off", {
 	paramtype2 = "facedir",
 	after_place_node = piston_orientate,
 	mesecons_piston = pistonspec_sticky,
+	sounds = default.node_sound_wood_defaults(),
 	mesecons = {effector={
 		action_on = piston_on,
 		rules = piston_get_rules
@@ -242,6 +266,7 @@ minetest.register_node("mesecons_pistons:piston_sticky_on", {
 	node_box = piston_on_box,
 	selection_box = piston_on_box,
 	mesecons_piston = pistonspec_sticky,
+	sounds = default.node_sound_wood_defaults(),
 	mesecons = {effector={
 		action_off = piston_off,
 		rules = piston_get_rules
@@ -267,357 +292,6 @@ minetest.register_node("mesecons_pistons:piston_pusher_sticky", {
 	node_box = piston_pusher_box,
 })
 
---
---
--- UP
---
---
-
-local piston_up_pusher_box = {
-	type = "fixed",
-	fixed = {
-		{-2/16, -.5 - pt, -2/16, 2/16, .5, 2/16},
-		{-.5  ,  .5 - pt, -.5  , .5  , .5,   .5},
-	}
-}
-
-local piston_up_on_box = {
-	type = "fixed",
-	fixed = {
-		{-.5, -.5, -.5 , .5, .5-pt, .5}
-	}
-}
-
--- Normal
-
-local pistonspec_normal_up = {
-	offname = "mesecons_pistons:piston_up_normal_off",
-	onname = "mesecons_pistons:piston_up_normal_on",
-	dir = {x = 0, y = 1, z = 0},
-	pusher = "mesecons_pistons:piston_up_pusher_normal"
-}
-
--- offstate
-minetest.register_node("mesecons_pistons:piston_up_normal_off", {
-	tiles = {
-		"mesecons_piston_pusher_front.png",
-		"mesecons_piston_back.png", 
-		"mesecons_piston_left.png^[transformR270", 
-		"mesecons_piston_right.png^[transformR90", 
-		"mesecons_piston_bottom.png", 
-		"mesecons_piston_top.png^[transformR180", 
-		},
-	inventory_image = "mesecons_piston_top.png",
-	wield_image = "mesecons_piston_top.png",
-	groups = {cracky = 3, not_in_creative_inventory = 1},
-	paramtype2 = "facedir",
-	drop = "mesecons_pistons:piston_normal_off",
-	mesecons_piston = pistonspec_normal_up,
-	mesecons = {effector={
-		action_on = piston_on,
-	}}
-})
-
--- onstate
-minetest.register_node("mesecons_pistons:piston_up_normal_on", {
-	drawtype = "nodebox",
-	tiles = {
-		"mesecons_piston_on_front.png",
-		"mesecons_piston_back.png", 
-		"mesecons_piston_left.png^[transformR270", 
-		"mesecons_piston_right.png^[transformR90", 
-		"mesecons_piston_bottom.png", 
-		"mesecons_piston_top.png^[transformR180", 
-		},
-	inventory_image = "mesecons_piston_top.png",
-	wield_image = "mesecons_piston_top.png",
-	groups = {cracky = 3, not_in_creative_inventory = 1},
-	paramtype = "light",
-	paramtype2 = "facedir",
-	drop = "mesecons_pistons:piston_normal_off",
-	after_dig_node = piston_remove_pusher,
-	node_box = piston_up_on_box,
-	selection_box = piston_up_on_box,
-	mesecons_piston = pistonspec_normal_up,
-	mesecons = {effector={
-		action_off = piston_off,
-	}}
-})
-
--- pusher
-minetest.register_node("mesecons_pistons:piston_up_pusher_normal", {
-	drawtype = "nodebox",
-	tiles = {
-		"mesecons_piston_pusher_front.png",
-		"mesecons_piston_pusher_back.png",
-		"mesecons_piston_pusher_left.png^[transformR270",
-		"mesecons_piston_pusher_right.png^[transformR90",
-		"mesecons_piston_pusher_bottom.png",
-		"mesecons_piston_pusher_top.png^[transformR180",
-		},
-	paramtype = "light",
-	paramtype2 = "facedir",
-	diggable = false,
-	corresponding_piston = "mesecons_pistons:piston_up_normal_on",
-	selection_box = piston_up_pusher_box,
-	node_box = piston_up_pusher_box,
-})
-
-
-
--- Sticky
-
-
-local pistonspec_sticky_up = {
-	offname = "mesecons_pistons:piston_up_sticky_off",
-	onname = "mesecons_pistons:piston_up_sticky_on",
-	dir = {x = 0, y = 1, z = 0},
-	pusher = "mesecons_pistons:piston_up_pusher_sticky",
-	sticky = true
-}
-
--- offstate
-minetest.register_node("mesecons_pistons:piston_up_sticky_off", {
-	tiles = {
-		"mesecons_piston_pusher_front_sticky.png",
-		"mesecons_piston_back.png", 
-		"mesecons_piston_left.png^[transformR270", 
-		"mesecons_piston_right.png^[transformR90", 
-		"mesecons_piston_bottom.png", 
-		"mesecons_piston_top.png^[transformR180", 
-		"mesecons_piston_tb.png"
-		},
-	inventory_image = "mesecons_piston_top.png",
-	wield_image = "mesecons_piston_top.png",
-	groups = {cracky = 3, not_in_creative_inventory = 1},
-	paramtype2 = "facedir",
-	drop = "mesecons_pistons:piston_sticky_off",
-	mesecons_piston = pistonspec_sticky_up,
-	mesecons = {effector={
-		action_on = piston_on,
-	}}
-})
-
--- onstate
-minetest.register_node("mesecons_pistons:piston_up_sticky_on", {
-	drawtype = "nodebox",
-	tiles = {
-		"mesecons_piston_on_front.png",
-		"mesecons_piston_back.png", 
-		"mesecons_piston_left.png^[transformR270", 
-		"mesecons_piston_right.png^[transformR90", 
-		"mesecons_piston_bottom.png", 
-		"mesecons_piston_top.png^[transformR180", 
-		},
-	inventory_image = "mesecons_piston_top.png",
-	wield_image = "mesecons_piston_top.png",
-	groups = {cracky = 3, not_in_creative_inventory = 1},
-	paramtype = "light",
-	paramtype2 = "facedir",
-	drop = "mesecons_pistons:piston_normal_off",
-	after_dig_node = piston_remove_pusher,
-	node_box = piston_up_on_box,
-	selection_box = piston_up_on_box,
-	mesecons_piston = pistonspec_sticky_up,
-	mesecons = {effector={
-		action_off = piston_off,
-	}}
-})
-
--- pusher
-minetest.register_node("mesecons_pistons:piston_up_pusher_sticky", {
-	drawtype = "nodebox",
-	tiles = {
-		"mesecons_piston_pusher_front_sticky.png",
-		"mesecons_piston_pusher_back.png",
-		"mesecons_piston_pusher_left.png^[transformR270",
-		"mesecons_piston_pusher_right.png^[transformR90",
-		"mesecons_piston_pusher_bottom.png",
-		"mesecons_piston_pusher_top.png^[transformR180",
-		},
-	paramtype = "light",
-	paramtype2 = "facedir",
-	diggable = false,
-	corresponding_piston = "mesecons_pistons:piston_up_sticky_on",
-	selection_box = piston_up_pusher_box,
-	node_box = piston_up_pusher_box,
-})
-
---
---
--- DOWN
---
---
-
-local piston_down_pusher_box = {
-	type = "fixed",
-	fixed = {
-		{-2/16, -.5, -2/16, 2/16,  .5 + pt, 2/16},
-		{-.5  , -.5, -.5  , .5  , -.5 + pt,   .5},
-	}
-}
-
-local piston_down_on_box = {
-	type = "fixed",
-	fixed = {
-		{-.5, -.5+pt, -.5 , .5, .5, .5}
-	}
-}
-
-
-
--- Normal
-
-local pistonspec_normal_down = {
-	offname = "mesecons_pistons:piston_down_normal_off",
-	onname = "mesecons_pistons:piston_down_normal_on",
-	dir = {x = 0, y = -1, z = 0},
-	pusher = "mesecons_pistons:piston_down_pusher_normal",
-}
-
--- offstate
-minetest.register_node("mesecons_pistons:piston_down_normal_off", {
-	tiles = {
-		"mesecons_piston_back.png", 
-		"mesecons_piston_pusher_front.png",
-		"mesecons_piston_left.png^[transformR90", 
-		"mesecons_piston_right.png^[transformR270", 
-		"mesecons_piston_bottom.png^[transformR180", 
-		"mesecons_piston_top.png", 
-		},
-	inventory_image = "mesecons_piston_top.png",
-	wield_image = "mesecons_piston_top.png",
-	groups = {cracky = 3, not_in_creative_inventory = 1},
-	paramtype2 = "facedir",
-	drop = "mesecons_pistons:piston_normal_off",
-	mesecons_piston = pistonspec_normal_down,
-	mesecons = {effector={
-		action_on = piston_on,
-	}}
-})
-
--- onstate
-minetest.register_node("mesecons_pistons:piston_down_normal_on", {
-	drawtype = "nodebox",
-	tiles = {
-		"mesecons_piston_back.png", 
-		"mesecons_piston_on_front.png",
-		"mesecons_piston_left.png^[transformR90", 
-		"mesecons_piston_right.png^[transformR270", 
-		"mesecons_piston_bottom.png^[transformR180", 
-		"mesecons_piston_top.png", 
-		},
-	inventory_image = "mesecons_piston_top.png",
-	wield_image = "mesecons_piston_top.png",
-	groups = {cracky = 3, not_in_creative_inventory = 1},
-	paramtype = "light",
-	paramtype2 = "facedir",
-	drop = "mesecons_pistons:piston_normal_off",
-	after_dig_node = piston_remove_pusher,
-	node_box = piston_down_on_box,
-	selection_box = piston_down_on_box,
-	mesecons_piston = pistonspec_normal_down,
-	mesecons = {effector={
-		action_off = piston_off,
-	}}
-})
-
--- pusher
-minetest.register_node("mesecons_pistons:piston_down_pusher_normal", {
-	drawtype = "nodebox",
-	tiles = {
-		"mesecons_piston_pusher_back.png",
-		"mesecons_piston_pusher_front.png",
-		"mesecons_piston_pusher_left.png^[transformR90",
-		"mesecons_piston_pusher_right.png^[transformR270",
-		"mesecons_piston_pusher_bottom.png^[transformR180",
-		"mesecons_piston_pusher_top.png",
-		},
-	paramtype = "light",
-	paramtype2 = "facedir",
-	diggable = false,
-	corresponding_piston = "mesecons_pistons:piston_down_normal_on",
-	selection_box = piston_down_pusher_box,
-	node_box = piston_down_pusher_box,
-})
-
--- Sticky
-
-local pistonspec_sticky_down = {
-	onname = "mesecons_pistons:piston_down_sticky_on",
-	offname = "mesecons_pistons:piston_down_sticky_off",
-	dir = {x = 0, y = -1, z = 0},
-	pusher = "mesecons_pistons:piston_down_pusher_sticky",
-	sticky = true
-}
-
--- offstate
-minetest.register_node("mesecons_pistons:piston_down_sticky_off", {
-	tiles = {
-		"mesecons_piston_back.png", 
-		"mesecons_piston_pusher_front_sticky.png",
-		"mesecons_piston_left.png^[transformR90", 
-		"mesecons_piston_right.png^[transformR270", 
-		"mesecons_piston_bottom.png^[transformR180", 
-		"mesecons_piston_top.png", 
-		},
-	inventory_image = "mesecons_piston_top.png",
-	wield_image = "mesecons_piston_top.png",
-	groups = {cracky = 3, not_in_creative_inventory = 1},
-	paramtype2 = "facedir",
-	drop = "mesecons_pistons:piston_sticky_off",
-	mesecons_piston = pistonspec_sticky_down,
-	mesecons = {effector={
-		action_on = piston_on,
-	}}
-})
-
--- onstate
-minetest.register_node("mesecons_pistons:piston_down_sticky_on", {
-	drawtype = "nodebox",
-	tiles = {
-		"mesecons_piston_back.png", 
-		"mesecons_piston_on_front.png",
-		"mesecons_piston_left.png^[transformR90", 
-		"mesecons_piston_right.png^[transformR270", 
-		"mesecons_piston_bottom.png^[transformR180", 
-		"mesecons_piston_top.png", 
-		},
-	inventory_image = "mesecons_piston_top.png",
-	wield_image = "mesecons_piston_top.png",
-	groups = {cracky = 3, not_in_creative_inventory = 1},
-	paramtype = "light",
-	paramtype2 = "facedir",
-	drop = "mesecons_pistons:piston_sticky_off",
-	after_dig_node = piston_remove_pusher,
-	node_box = piston_down_on_box,
-	selection_box = piston_down_on_box,
-	mesecons_piston = pistonspec_sticky_down,
-	mesecons = {effector={
-		action_off = piston_off,
-	}}
-})
-
--- pusher
-minetest.register_node("mesecons_pistons:piston_down_pusher_sticky", {
-	drawtype = "nodebox",
-	tiles = {
-		"mesecons_piston_pusher_back.png",
-		"mesecons_piston_pusher_front_sticky.png",
-		"mesecons_piston_pusher_left.png^[transformR90",
-		"mesecons_piston_pusher_right.png^[transformR270",
-		"mesecons_piston_pusher_bottom.png^[transformR180",
-		"mesecons_piston_pusher_top.png",
-		},
-	paramtype = "light",
-	paramtype2 = "facedir",
-	diggable = false,
-	corresponding_piston = "mesecons_pistons:piston_down_sticky_on",
-	selection_box = piston_down_pusher_box,
-	node_box = piston_down_pusher_box,
-})
-
-
 -- Register pushers as stoppers if they would be seperated from the piston
 local piston_pusher_get_stopper = function (node, dir, stack, stackid)
 	if (stack[stackid + 1]
@@ -644,27 +318,9 @@ end
 mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_normal", piston_pusher_get_stopper)
 mesecon:register_mvps_stopper("mesecons_pistons:piston_pusher_sticky", piston_pusher_get_stopper)
 
-mesecon:register_mvps_stopper("mesecons_pistons:piston_up_pusher_normal", piston_pusher_up_down_get_stopper)
-mesecon:register_mvps_stopper("mesecons_pistons:piston_up_pusher_sticky", piston_pusher_up_down_get_stopper)
-
-mesecon:register_mvps_stopper("mesecons_pistons:piston_down_pusher_normal", piston_pusher_up_down_get_stopper)
-mesecon:register_mvps_stopper("mesecons_pistons:piston_down_pusher_sticky", piston_pusher_up_down_get_stopper)
-
-
--- Register pistons as stoppers if they would be seperated from the stopper
-local piston_up_down_get_stopper = function (node, dir, stack, stackid)
-	if (stack[stackid + 1]
-	and stack[stackid + 1].node.name   == minetest.registered_nodes[node.name].mesecons_piston.pusher)
-	or (stack[stackid - 1]
-	and stack[stackid - 1].node.name   == minetest.registered_nodes[node.name].mesecons_piston.pusher) then
-		return false
-	end
-	return true
-end
-
 local piston_get_stopper = function (node, dir, stack, stackid)
 	pistonspec = minetest.registered_nodes[node.name].mesecons_piston
-	dir = piston_get_direction(pistonspec.dir, node)
+	dir = piston_facedir_direction(node)
 	local pusherpos  = mesecon:addPosRule(stack[stackid].pos, dir)
 	local pushernode = minetest.env:get_node(pusherpos)
 
@@ -682,12 +338,6 @@ end
 mesecon:register_mvps_stopper("mesecons_pistons:piston_normal_on", piston_get_stopper)
 mesecon:register_mvps_stopper("mesecons_pistons:piston_sticky_on", piston_get_stopper)
 
-mesecon:register_mvps_stopper("mesecons_pistons:piston_up_normal_on", piston_up_down_get_stopper)
-mesecon:register_mvps_stopper("mesecons_pistons:piston_up_sticky_on", piston_up_down_get_stopper)
-
-mesecon:register_mvps_stopper("mesecons_pistons:piston_down_normal_on", piston_up_down_get_stopper)
-mesecon:register_mvps_stopper("mesecons_pistons:piston_down_sticky_on", piston_up_down_get_stopper)
-
 --craft recipes
 minetest.register_craft({
 	output = 'mesecons_pistons:piston_normal_off 2',

mesecons_powerplant/init.lua

@@ -15,6 +15,7 @@ minetest.register_node("mesecons_powerplant:power_plant", {
 		type = "fixed",
 		fixed = {-0.1, -0.5, -0.1, 0.1, -0.5+0.6, 0.1},
 	},
+	sounds = default.node_sound_leaves_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.on
 	}}

mesecons_pressureplates/init.lua

@@ -17,12 +17,15 @@ pp_on_timer = function (pos, elapsed)
 	if not ppspec then return end
 
 	local objs   = minetest.env:get_objects_inside_radius(pos, 1)
+	local two_below = mesecon:addPosRule(pos, {x = 0, y = -2, z = 0})
 
 	if objs[1] == nil and node.name == ppspec.onstate then
 		minetest.env:add_node(pos, {name = ppspec.offstate})
 		mesecon:receptor_off(pos)
 		-- force deactivation of mesecon two blocks below (hacky)
-		mesecon:turnoff(mesecon:addPosRule(pos, {x = 0, y = -2, z = 0}))
+		if not mesecon:connected_to_receptor(two_below) then
+			mesecon:turnoff(two_below)
+		end
 	else
 		for k, obj in pairs(objs) do
 			local objpos = obj:getpos()
@@ -30,7 +33,7 @@ pp_on_timer = function (pos, elapsed)
 				minetest.env:add_node(pos, {name=ppspec.onstate})
 				mesecon:receptor_on(pos)
 				-- force activation of mesecon two blocks below (hacky)
-				mesecon:turnon(mesecon:addPosRule(pos, {x = 0, y = -2, z = 0}))
+				mesecon:turnon(two_below)
 			end
 		end
 	end
@@ -39,12 +42,12 @@ end
 
 -- Register a Pressure Plate
 -- offstate:	name of the pressure plate when inactive
--- onstate:		name of the pressure plate when active
+-- onstate:	name of the pressure plate when active
 -- description:	description displayed in the player's inventory
 -- tiles_off:	textures of the pressure plate when inactive
 -- tiles_on:	textures of the pressure plate when active
--- image:		inventory and wield image of the pressure plate
--- recipe:		crafting recipe of the pressure plate
+-- image:	inventory and wield image of the pressure plate
+-- recipe:	crafting recipe of the pressure plate
 
 function mesecon:register_pressure_plate(offstate, onstate, description, texture_off, texture_on, recipe)
 	local ppspec = {
@@ -82,12 +85,19 @@ function mesecon:register_pressure_plate(offstate, onstate, description, texture
 		drop = offstate,
 		pressureplate = ppspec,
 		on_timer = pp_on_timer,
+		sounds = default.node_sound_wood_defaults(),
 		mesecons = {receptor = {
 			state = mesecon.state.on
 		}},
 		on_construct = function(pos)
 			minetest.env:get_node_timer(pos):start(PRESSURE_PLATE_INTERVAL)
 		end,
+		after_dig_node = function(pos)
+			local two_below = mesecon:addPosRule(pos, {x = 0, y = -2, z = 0})
+			if not mesecon:connected_to_receptor(two_below) then
+				mesecon:turnoff(two_below)
+			end
+		end
 	})
 
 	minetest.register_craft({

mesecons_random/init.lua

@@ -5,6 +5,7 @@ minetest.register_node("mesecons_random:removestone", {
 	inventory_image = minetest.inventorycube("jeija_removestone_inv.png"),
 	groups = {cracky=3},
 	description="Removestone",
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {effector = {
 		action_on = function (pos, node)
 			minetest.env:remove_node(pos)

mesecons_solarpanel/init.lua

@@ -22,6 +22,7 @@ minetest.register_node("mesecons_solarpanel:solar_panel_on", {
 	},
 	drop = "mesecons_solarpanel:solar_panel_off",
 	groups = {dig_immediate=3, not_in_creative_inventory = 1},
+	sounds = default.node_sound_glass_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.on
 	}}
@@ -51,6 +52,7 @@ minetest.register_node("mesecons_solarpanel:solar_panel_off", {
 	},
 	groups = {dig_immediate=3},
     	description="Solar Panel",
+	sounds = default.node_sound_glass_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.off
 	}}

mesecons_switch/init.lua

@@ -5,12 +5,14 @@ minetest.register_node("mesecons_switch:mesecon_switch_off", {
 	paramtype2="facedir",
 	groups = {dig_immediate=2},
 	description="Switch",
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.off
 	}},
 	on_punch = function(pos, node)
 		mesecon:swap_node(pos, "mesecons_switch:mesecon_switch_on")
 		mesecon:receptor_on(pos)
+		minetest.sound_play("mesecons_switch", {pos=pos})
 	end
 })
 
@@ -19,12 +21,14 @@ minetest.register_node("mesecons_switch:mesecon_switch_on", {
 	paramtype2="facedir",
 	groups = {dig_immediate=2,not_in_creative_inventory=1},
 	drop='"mesecons_switch:mesecon_switch_off" 1',
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.on
 	}},
 	on_punch = function(pos, node)
 		mesecon:swap_node(pos, "mesecons_switch:mesecon_switch_off")
 		mesecon:receptor_off(pos)
+		minetest.sound_play("mesecons_switch", {pos=pos})
 	end
 })
 

mesecons_walllever/init.lua

@@ -34,7 +34,9 @@ minetest.register_node("mesecons_walllever:wall_lever_off", {
 	on_punch = function (pos, node)
 		mesecon:swap_node(pos, "mesecons_walllever:wall_lever_on")
 		mesecon:receptor_on(pos, mesecon.rules.buttonlike_get(node))
+		minetest.sound_play("mesecons_lever", {pos=pos})
 	end,
+	sounds = default.node_sound_wood_defaults(),
 	mesecons = {receptor = {
 		rules = mesecon.rules.buttonlike_get,
 		state = mesecon.state.off
@@ -74,7 +76,9 @@ minetest.register_node("mesecons_walllever:wall_lever_on", {
 	on_punch = function (pos, node)
 		mesecon:swap_node(pos, "mesecons_walllever:wall_lever_off")
 		mesecon:receptor_off(pos, mesecon.rules.buttonlike_get(node))
+		minetest.sound_play("mesecons_lever", {pos=pos})
 	end,
+	sounds = default.node_sound_wood_defaults(),
 	mesecons = {receptor = {
 		rules = mesecon.rules.buttonlike_get,
 		state = mesecon.state.on