Merge remote-tracking branch 'upstream/master'

Make sure node is registered before attempting to access the vports

.github/workflows/check-release.yml

@@ -0,0 +1,15 @@
+on: [push, pull_request]
+name: Check & Release
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@main
+    - name: apt
+      run: sudo apt-get install -y luarocks
+    - name: luacheck install
+      run: luarocks install --local luacheck
+    - name: luacheck run
+      run: $HOME/.luarocks/bin/luacheck ./

.luacheckrc

@@ -0,0 +1,36 @@
+std = "lua51c"
+
+ignore = {
+	"21/_+", -- Unused variable, except "_", "__", etc.
+	"213", -- Unused loop variable
+	"421", -- Shadowing a local variable
+	"422", -- Shadowing an argument
+	"423", -- Shadowing a loop variable
+	"431", -- Shadowing an upvalue
+	"432", -- Shadowing an upvalue argument
+	"433", -- Shadowing an upvalue loop variable
+	"542", -- Empty if branch
+}
+
+max_line_length = 200
+
+read_globals = {
+	"default",
+	"digiline",
+	"doors",
+	"dump",
+	"jit",
+	"minetest",
+	"screwdriver",
+	"string.split",
+	"table.copy",
+	"table.insert_all",
+	"vector",
+	"VoxelArea",
+}
+
+globals = {"mesecon"}
+
+files["mesecons/actionqueue.lua"] = {
+	globals = {"minetest.registered_globalsteps"},
+}

LICENSE.txt

@@ -1,6 +1,12 @@
 The LGPLv3 applies to all code in this project.
 The CC-BY-SA-3.0 license applies to textures and any other content in this project which is not source code.
 
+The file mesecons_detector/textures/mesecons_detector_side.png is an unmodified copy of
+"default_steel_block.png" by Jean-Patrick Guerrero <https://github.com/kilbith>, which can be found at
+<https://github.com/minetest/minetest_game/blob/9528c0f8b93d6934930e99c3c116df275fb0e4bc/mods/default/textures/default_steel_block.png>.
+"default_steel_block.png" is licensed under a CC BY-SA 3.0 license. This license can be found later in this document, and can also be found at
+<https://creativecommons.org/licenses/by-sa/3.0/>. The artwork is reportedly copyright (C) 2010-2018 kilbith.
+
 =================================================================
 
 GNU LESSER GENERAL PUBLIC LICENSE

README.md

@@ -12,9 +12,9 @@ MESECONS by Jeija and contributors
 
 Mezzee-what?
 ------------
-[Mesecons](http://mesecons.net/)! They're yellow, they're conductive, and they'll add a whole new dimension to Minetest's gameplay.
+[Mesecons](https://mesecons.net/)! They're yellow, they're conductive, and they'll add a whole new dimension to Minetest's gameplay.
 
-Mesecons is a mod for [Minetest](http://minetest.net/) that implements a ton of items related to digital circuitry, such as wires, buttons, lights, and even programmable controllers. Among other things, there are also pistons, solar panels, pressure plates, and note blocks.
+Mesecons is a mod for [Minetest](https://www.minetest.net/) that implements a ton of items related to digital circuitry, such as wires, buttons, lights, and even programmable controllers. Among other things, there are also pistons, solar panels, pressure plates, and note blocks.
 
 Mesecons has a similar goal to Redstone in Minecraft, but works in its own way, with different rules and mechanics.
 
@@ -74,8 +74,10 @@ There are also a whole bunch of other people helping with everything from code t
 
 Alright, how can I use it?
 --------------------------
-All textures in this project are licensed under the CC-BY-SA 3.0 (Creative Commons Attribution-ShareAlike 3.0 Generic). That means you can distribute and remix them as much as you want to, under the condition that you give credit to the authors and the project, and that if you remix and release them, they must be under the same or similar license to this one.
+All textures in this project are licensed under the CC-BY-SA 3.0 (Creative Commons Attribution-ShareAlike 3.0 Generic).
+That means you can distribute and remix them as much as you want to, under the condition that you give credit to the authors and the project, and that if you remix and release them, they must be under the same or similar license to this one.
 
-All code in this project is licensed under the LGPL version 3 or later. That means you have unlimited freedom to distribute and modify the work however you see fit, provided that if you decide to distribute it or any modified versions of it, you must also use the same license. The LGPL also grants the additional freedom to write extensions for the software and distribute them without the extensions being subject to the terms of the LGPL, although the software itself retains its license.
+All code in this project is licensed under the LGPL version 3.
+That means you have unlimited freedom to distribute and modify the work however you see fit, provided that if you decide to distribute it or any modified versions of it, you must also use the same license. The LGPL also grants the additional freedom to write extensions for the software and distribute them without the extensions being subject to the terms of the LGPL, although the software itself retains its license.
 
 No warranty is provided, express or implied, for any part of the project.

bower.json

@@ -1,9 +1,9 @@
 {
     "name": "mesecons",
     "description": "Mesecons is a mod for Minetest that implements items related to digital circuitry: wires, buttons, lights, and programmable controllers.",
-    "homepage": "http://mesecons.net",
-    "authors": "Jeija",
-    "license": "LGPL-3.0+",
+    "homepage": "https://mesecons.net",
+    "authors": ["Jeija"],
+    "license": "LGPL-3.0",
     "keywords": [
         "mesecons",
         "minetest",

mesecons/actionqueue.lua

@@ -29,7 +29,7 @@ local queue = mesecon.queue
 queue.actions = {} -- contains all ActionQueue actions
 
 function queue:add_function(name, func)
-	queue.funcs[name] = func
+	self.funcs[name] = func
 end
 
 -- If add_action with twice the same overwritecheck and same position are called, the first one is overwritten
@@ -51,17 +51,17 @@ function queue:add_action(pos, func, params, time, overwritecheck, priority)
 
 	 -- check if old action has to be overwritten / removed:
 	if overwritecheck then
-		for i, ac in ipairs(queue.actions) do
+		for i, ac in ipairs(self.actions) do
 			if vector.equals(pos, ac.pos)
 					and mesecon.cmpAny(overwritecheck, ac.owcheck) then
 				-- remove the old action
-				table.remove(queue.actions, i)
+				table.remove(self.actions, i)
 				break
 			end
 		end
 	end
 
-	table.insert(queue.actions, action)
+	table.insert(self.actions, action)
 end
 
 -- execute the stored functions on a globalstep
@@ -133,8 +133,8 @@ end
 function queue:execute(action)
 	-- ignore if action queue function name doesn't exist,
 	-- (e.g. in case the action queue savegame was written by an old mesecons version)
-	if queue.funcs[action.func] then
-		queue.funcs[action.func](action.pos, unpack(action.params))
+	if self.funcs[action.func] then
+		self.funcs[action.func](action.pos, unpack(action.params))
 	end
 end
 

mesecons/fifo_queue.lua

@@ -0,0 +1,62 @@
+
+-- a simple first-in-first-out queue
+-- very similar to the one in https://github.com/minetest/minetest/pull/7683
+
+local fifo_queue = {}
+
+local metatable = {__index = fifo_queue}
+
+-- creates a new empty queue
+function fifo_queue.new()
+	local q = {n_in = 0, n_out = 0, i_out = 1, buf_in = {}, buf_out = {}}
+	setmetatable(q, metatable)
+	return q
+end
+
+-- adds an element to the queue
+function fifo_queue.add(self, v)
+	local n = self.n_in + 1
+	self.n_in = n
+	self.buf_in[n] = v
+end
+
+-- removes and returns the next element, or nil of empty
+function fifo_queue.take(self)
+	local i_out = self.i_out
+	if i_out <= self.n_out then
+		local v = self.buf_out[i_out]
+		self.i_out = i_out + 1
+		self.buf_out[i_out] = true
+		return v
+	end
+
+	-- buf_out is empty, try to swap
+	self.i_out = 1
+	self.n_out = 0
+	if self.n_in == 0 then
+		return nil -- empty
+	end
+
+	-- swap
+	self.n_out = self.n_in
+	self.n_in = 0
+	self.buf_out, self.buf_in = self.buf_in, self.buf_out
+
+	local v = self.buf_out[1]
+	self.i_out = 2
+	self.buf_out[1] = true
+	return v
+end
+
+-- returns whether the queue is empty
+function fifo_queue.is_empty(self)
+	return self.n_out == self.i_out + 1 and self.n_in == 0
+end
+
+-- returns stuff for iteration in a for loop, like pairs
+-- adding new elements while iterating is no problem
+function fifo_queue.iter(self)
+	return fifo_queue.take, self, nil
+end
+
+return fifo_queue

mesecons/internal.lua

@@ -11,7 +11,7 @@
 
 -- RECEPTORS
 -- mesecon.is_receptor(nodename)	--> Returns true if nodename is a receptor
--- mesecon.is_receptor_on(nodename	--> Returns true if nodename is an receptor with state = mesecon.state.on
+-- mesecon.is_receptor_on(nodename)	--> Returns true if nodename is an receptor with state = mesecon.state.on
 -- mesecon.is_receptor_off(nodename)	--> Returns true if nodename is an receptor with state = mesecon.state.off
 -- mesecon.receptor_get_rules(node)	--> Returns the rules of the receptor (mesecon.rules.default if none specified)
 
@@ -46,6 +46,9 @@
 -- mesecon.rotate_rules_down(rules)
 -- These functions return rules that have been rotated in the specific direction
 
+-- See fifo_queue.lua for documentation.
+mesecon.fifo_queue = dofile(minetest.get_modpath("mesecons").."/fifo_queue.lua")
+
 -- General
 function mesecon.get_effector(nodename)
 	if  minetest.registered_nodes[nodename]
@@ -92,8 +95,8 @@ function mesecon.get_any_inputrules(node)
 end
 
 function mesecon.get_any_rules(node)
-	return mesecon.mergetable(mesecon.get_any_inputrules(node) or {},
-		mesecon.get_any_outputrules(node) or {})
+	return mesecon.merge_rule_sets(mesecon.get_any_inputrules(node),
+		mesecon.get_any_outputrules(node))
 end
 
 -- Receptors
@@ -316,7 +319,7 @@ function mesecon.get_conductor_on(node_off, rulename)
 			return conductor.states[tonumber(binstate,2)+1]
 		end
 	end
-	return offstate
+	return nil
 end
 
 function mesecon.get_conductor_off(node_on, rulename)
@@ -332,7 +335,7 @@ function mesecon.get_conductor_off(node_on, rulename)
 			return conductor.states[tonumber(binstate,2)+1]
 		end
 	end
-	return onstate
+	return nil
 end
 
 function mesecon.conductor_get_rules(node)
@@ -366,37 +369,98 @@ function mesecon.is_power_off(pos, rulename)
 	return false
 end
 
+-- The set of conductor states which require light updates when they change.
+local light_update_conductors
+
+-- Calculate the contents of the above set if they have not been calculated.
+local function find_light_update_conductors()
+	-- The expensive calculation is only done the first time.
+	if light_update_conductors then return end
+
+	light_update_conductors = {}
+
+	-- Find conductors whose lighting characteristics change depending on their state.
+	local checked = {}
+	for name, def in pairs(minetest.registered_nodes) do
+		local conductor = mesecon.get_conductor(name)
+		if conductor and not checked[name] then
+			-- Find the other states of the conductor besides the current one.
+			local other_states
+			if conductor.onstate then
+				other_states = {conductor.onstate}
+			elseif conductor.offstate then
+				other_states = {conductor.offstate}
+			else
+				other_states = conductor.states
+			end
+
+			-- Check the conductor. Other states are marked as checked.
+			for _, other_state in ipairs(other_states) do
+				local other_def = minetest.registered_nodes[other_state]
+				if (def.paramtype == "light") ~= (other_def.paramtype == "light")
+				or def.sunlight_propagates ~= other_def.sunlight_propagates
+				or def.light_source ~= other_def.light_source then
+					-- The light characteristics change depending on the state.
+					-- The states are added to the set.
+					light_update_conductors[name] = true
+					for _, other_state in ipairs(other_states) do
+						light_update_conductors[other_state] = true
+						checked[other_state] = true
+					end
+					break
+				end
+				checked[other_state] = true
+			end
+		end
+	end
+end
+
 -- Turn off an equipotential section starting at `pos`, which outputs in the direction of `link`.
 -- Breadth-first search. Map is abstracted away in a voxelmanip.
 -- Follow all all conductor paths replacing conductors that were already
 -- looked at, activating / changing all effectors along the way.
 function mesecon.turnon(pos, link)
-	local frontiers = {{pos = pos, link = link}}
+	find_light_update_conductors()
+
+	local frontiers = mesecon.fifo_queue.new()
+	frontiers:add({pos = pos, link = link})
+	local pos_can_be_skipped = {}
 
 	local depth = 1
-	while frontiers[1] do
-		local f = table.remove(frontiers, 1)
+	for f in frontiers:iter() do
 		local node = mesecon.get_node_force(f.pos)
 
 		if not node then
 			-- Area does not exist; do nothing
-		elseif mesecon.is_conductor_off(node, f.link) then
+			pos_can_be_skipped[minetest.hash_node_position(f.pos)] = true
+		elseif mesecon.is_conductor(node.name) then
 			local rules = mesecon.conductor_get_rules(node)
 
+			if mesecon.is_conductor_off(node, f.link) then
 				-- Call turnon on neighbors
 				for _, r in ipairs(mesecon.rule2meta(f.link, rules)) do
 					local np = vector.add(f.pos, r)
+					if not pos_can_be_skipped[minetest.hash_node_position(np)] then
 						for _, l in ipairs(mesecon.rules_link_rule_all(f.pos, r)) do
-					table.insert(frontiers, {pos = np, link = l})
+							frontiers:add({pos = np, link = l})
+						end
 					end
 				end
 
-			mesecon.swap_node_force(f.pos, mesecon.get_conductor_on(node, f.link))
+				mesecon.swap_node_force(f.pos, mesecon.get_conductor_on(node, f.link), light_update_conductors[node.name] ~= nil)
+			end
+
+			-- Only conductors with flat rules can be reliably skipped later
+			if not rules[1] or rules[1].x then
+				pos_can_be_skipped[minetest.hash_node_position(f.pos)] = true
+			end
 		elseif mesecon.is_effector(node.name) then
 			mesecon.changesignal(f.pos, node, f.link, mesecon.state.on, depth)
 			if mesecon.is_effector_off(node.name) then
 				mesecon.activate(f.pos, node, f.link, depth)
 			end
+		else
+			pos_can_be_skipped[minetest.hash_node_position(f.pos)] = true
 		end
 		depth = depth + 1
 	end
@@ -419,25 +483,32 @@ end
 --	depth = indicates order in which signals wire fired, higher is later
 -- }
 function mesecon.turnoff(pos, link)
-	local frontiers = {{pos = pos, link = link}}
+	find_light_update_conductors()
+
+	local frontiers = mesecon.fifo_queue.new()
+	frontiers:add({pos = pos, link = link})
 	local signals = {}
+	local pos_can_be_skipped = {}
 
 	local depth = 1
-	while frontiers[1] do
-		local f = table.remove(frontiers, 1)
+	for f in frontiers:iter() do
 		local node = mesecon.get_node_force(f.pos)
 
 		if not node then
 			-- Area does not exist; do nothing
-		elseif mesecon.is_conductor_on(node, f.link) then
+			pos_can_be_skipped[minetest.hash_node_position(f.pos)] = true
+		elseif mesecon.is_conductor(node.name) then
 			local rules = mesecon.conductor_get_rules(node)
+
+			if mesecon.is_conductor_on(node, f.link) then
 				for _, r in ipairs(mesecon.rule2meta(f.link, rules)) do
 					local np = vector.add(f.pos, r)
 
+					if not pos_can_be_skipped[minetest.hash_node_position(np)] then
 						-- Check if an onstate receptor is connected. If that is the case,
 						-- abort this turnoff process by returning false. `receptor_off` will
 						-- discard all the changes that we made in the voxelmanip:
-				for _, l in ipairs(mesecon.rules_link_rule_all_inverted(f.pos, r)) do
+						if mesecon.rules_link_rule_all_inverted(f.pos, r)[1] then
 							if mesecon.is_receptor_on(mesecon.get_node_force(np).name) then
 								return false
 							end
@@ -445,11 +516,18 @@ function mesecon.turnoff(pos, link)
 
 						-- Call turnoff on neighbors
 						for _, l in ipairs(mesecon.rules_link_rule_all(f.pos, r)) do
-					table.insert(frontiers, {pos = np, link = l})
+							frontiers:add({pos = np, link = l})
+						end
 					end
 				end
 
-			mesecon.swap_node_force(f.pos, mesecon.get_conductor_off(node, f.link))
+				mesecon.swap_node_force(f.pos, mesecon.get_conductor_off(node, f.link), light_update_conductors[node.name] ~= nil)
+			end
+
+			-- Only conductors with flat rules can be reliably skipped later
+			if not rules[1] or rules[1].x then
+				pos_can_be_skipped[minetest.hash_node_position(f.pos)] = true
+			end
 		elseif mesecon.is_effector(node.name) then
 			table.insert(signals, {
 				pos = f.pos,
@@ -457,6 +535,8 @@ function mesecon.turnoff(pos, link)
 				link = f.link,
 				depth = depth
 			})
+		else
+			pos_can_be_skipped[minetest.hash_node_position(f.pos)] = true
 		end
 		depth = depth + 1
 	end

mesecons/legacy.lua

@@ -11,4 +11,4 @@ local old_forceloaded_blocks = mesecon.file2table("mesecon_forceloaded")
 for hash, _ in pairs(old_forceloaded_blocks) do
 	minetest.forceload_free_block(unhash_blockpos(hash))
 end
-os.remove(minetest.get_worldpath()..DIR_DELIM.."mesecon_forceloaded")
+os.remove(minetest.get_worldpath().."/mesecon_forceloaded")

mesecons/mod.conf

@@ -1,2 +1,4 @@
 name = mesecons
-depends = default
+# default is an optional dependency as some mods may expect it as a transitory
+# dependency when they depend on mesecons.
+optional_depends = default

mesecons/presets.lua

@@ -16,9 +16,9 @@ mesecon.rules.default = {
 	{x =  0, y = -1, z = -1},
 }
 
-mesecon.rules.floor = mesecon.mergetable(mesecon.rules.default, {{x = 0, y = -1, z = 0}})
+mesecon.rules.floor = mesecon.merge_rule_sets(mesecon.rules.default, {{x = 0, y = -1, z = 0}})
 
-mesecon.rules.pplate = mesecon.mergetable(mesecon.rules.floor, {{x = 0, y = -2, z = 0}})
+mesecon.rules.pplate = mesecon.merge_rule_sets(mesecon.rules.floor, {{x = 0, y = -2, z = 0}})
 
 mesecon.rules.buttonlike = {
 	{x = 1,  y =  0, z =  0},

mesecons/services.lua

@@ -2,6 +2,7 @@
 
 mesecon.on_placenode = function(pos, node)
 	mesecon.execute_autoconnect_hooks_now(pos, node)
+	node = minetest.get_node(pos) -- Update the node in case it was just changed.
 
 	-- Receptors: Send on signal when active
 	if mesecon.is_receptor_on(node.name) then
@@ -11,18 +12,20 @@ mesecon.on_placenode = function(pos, node)
 	-- Conductors: Send turnon signal when powered or replace by respective offstate conductor
 	-- if placed conductor is an onstate one
 	if mesecon.is_conductor(node.name) then
+		local conductor = mesecon.get_conductor(node.name)
+		if conductor.state ~= mesecon.state.off then
+			-- Turn the conductor off.
+			node.name = conductor.offstate or conductor.states[1]
+			minetest.swap_node(pos, node)
+		end
 		local sources = mesecon.is_powered(pos)
 		if sources then
-			-- also call receptor_on if itself is powered already, so that neighboring
-			-- conductors will be activated (when pushing an on-conductor with a piston)
+			mesecon.vm_begin()
 			for _, s in ipairs(sources) do
-				local rule = vector.subtract(pos, s)
+				local rule = vector.subtract(s, pos)
 				mesecon.turnon(pos, rule)
 			end
-			--mesecon.receptor_on (pos, mesecon.conductor_get_rules(node))
-		elseif mesecon.is_conductor_on(node) then
-			node.name = mesecon.get_conductor_off(node)
-			minetest.swap_node(pos, node)
+			mesecon.vm_commit()
 		end
 	end
 
@@ -63,7 +66,7 @@ mesecon.on_dignode = function(pos, node)
 	mesecon.execute_autoconnect_hooks_queue(pos, node)
 end
 
-function mesecon.on_blastnode(pos, intensity)
+function mesecon.on_blastnode(pos)
 	local node = minetest.get_node(pos)
 	minetest.remove_node(pos)
 	mesecon.on_dignode(pos, node)

mesecons/util.lua

@@ -6,6 +6,24 @@ function mesecon.move_node(pos, newpos)
 	minetest.get_meta(pos):from_table(meta)
 end
 
+-- An on_rotate callback for mesecons components.
+function mesecon.on_rotate(pos, node, _, _, new_param2)
+	local new_node = {name = node.name, param1 = node.param1, param2 = new_param2}
+	minetest.swap_node(pos, new_node)
+	mesecon.on_dignode(pos, node)
+	mesecon.on_placenode(pos, new_node)
+	minetest.check_for_falling(pos)
+	return true
+end
+
+-- An on_rotate callback for components which stay horizontal.
+function mesecon.on_rotate_horiz(pos, node, user, mode, new_param2)
+	if not minetest.global_exists("screwdriver") or mode ~= screwdriver.ROTATE_FACE then
+		return false
+	end
+	return mesecon.on_rotate(pos, node, user, mode, new_param2)
+end
+
 -- Rules rotation Functions:
 function mesecon.rotate_rules_right(rules)
 	local nr = {}
@@ -54,7 +72,28 @@ function mesecon.rotate_rules_up(rules)
 	end
 	return nr
 end
---
+
+-- Returns a rules getter function that returns different rules depending on the node's horizontal rotation.
+-- If param2 % 4 == 0, then the rules returned by the getter are a copy of base_rules.
+function mesecon.horiz_rules_getter(base_rules)
+	local rotations = {mesecon.tablecopy(base_rules)}
+	for i = 2, 4 do
+		local right_rules = rotations[i - 1]
+		if not right_rules[1] or right_rules[1].x then
+			-- flat rules
+			rotations[i] = mesecon.rotate_rules_left(right_rules)
+		else
+			-- not flat
+			rotations[i] = {}
+			for j, rules in ipairs(right_rules) do
+				rotations[i][j] = mesecon.rotate_rules_left(rules)
+			end
+		end
+	end
+	return function(node)
+		return rotations[node.param2 % 4 + 1]
+	end
+end
 
 function mesecon.flattenrules(allrules)
 --[[
@@ -164,7 +203,9 @@ end
 
 function mesecon.get_bit(binary,bit)
 	bit = bit or 1
-	local c = binary:len()-(bit-1)
+	local len = binary:len()
+	if bit > len then return false end
+	local c = len-(bit-1)
 	return binary:sub(c,c) == "1"
 end
 
@@ -213,8 +254,9 @@ function mesecon.cmpAny(t1, t2)
 	return true
 end
 
--- does not overwrite values; number keys (ipairs) are appended, not overwritten
+-- Deprecated. Use `merge_tables` or `merge_rule_sets` as appropriate.
 function mesecon.mergetable(source, dest)
+	minetest.log("warning", debug.traceback("Deprecated call to mesecon.mergetable"))
 	local rval = mesecon.tablecopy(dest)
 
 	for k, v in pairs(source) do
@@ -227,6 +269,32 @@ function mesecon.mergetable(source, dest)
 	return rval
 end
 
+-- Merges several rule sets in one. Order may not be preserved. Nil arguments
+-- are ignored.
+-- The rule sets must be of the same kind (either all single-level or all two-level).
+-- The function may be changed to normalize the resulting set in some way.
+function mesecon.merge_rule_sets(...)
+	local rval = {}
+	for _, t in pairs({...}) do -- ignores nils automatically
+		table.insert_all(rval, mesecon.tablecopy(t))
+	end
+	return rval
+end
+
+-- Merges two tables, with entries from `replacements` taking precedence over
+-- those from `base`. Returns the new table.
+-- Values are deep-copied from either table, keys are referenced.
+-- Numerical indices aren’t handled specially.
+function mesecon.merge_tables(base, replacements)
+	local ret = mesecon.tablecopy(replacements) -- these are never overriden so have to be copied in any case
+	for k, v in pairs(base) do
+		if ret[k] == nil then -- it could be `false`
+			ret[k] = mesecon.tablecopy(v)
+		end
+	end
+	return ret
+end
+
 function mesecon.register_node(name, spec_common, spec_off, spec_on)
 	spec_common.drop = spec_common.drop or name .. "_off"
 	spec_common.on_blast = spec_common.on_blast or mesecon.on_blastnode
@@ -234,8 +302,8 @@ function mesecon.register_node(name, spec_common, spec_off, spec_on)
 	spec_on.__mesecon_state = "on"
 	spec_off.__mesecon_state = "off"
 
-	spec_on = mesecon.mergetable(spec_common, spec_on);
-	spec_off = mesecon.mergetable(spec_common, spec_off);
+	spec_on = mesecon.merge_tables(spec_common, spec_on);
+	spec_off = mesecon.merge_tables(spec_common, spec_off);
 
 	minetest.register_node(name .. "_on", spec_on)
 	minetest.register_node(name .. "_off", spec_off)
@@ -257,7 +325,7 @@ end
 -- File writing / reading utilities
 local wpath = minetest.get_worldpath()
 function mesecon.file2table(filename)
-	local f = io.open(wpath..DIR_DELIM..filename, "r")
+	local f = io.open(wpath.."/"..filename, "r")
 	if f == nil then return {} end
 	local t = f:read("*all")
 	f:close()
@@ -266,7 +334,7 @@ function mesecon.file2table(filename)
 end
 
 function mesecon.table2file(filename, table)
-	local f = io.open(wpath..DIR_DELIM..filename, "w")
+	local f = io.open(wpath.."/"..filename, "w")
 	f:write(minetest.serialize(table))
 	f:close()
 end
@@ -288,15 +356,17 @@ end
 --
 -- Contents of the table are:
 -- “vm” → the VoxelManipulator
--- “va” → the VoxelArea
--- “data” → the data array
--- “param1” → the param1 array
--- “param2” → the param2 array
 -- “dirty” → true if data has been modified
 --
 -- Nil if no VM-based transaction is in progress.
 local vm_cache = nil
 
+-- Cache from node position hashes to nodes (represented as tables).
+local vm_node_cache = nil
+
+-- Whether the current transaction will need a light update afterward.
+local vm_update_light = false
+
 -- Starts a VoxelManipulator-based transaction.
 --
 -- During a VM transaction, calls to vm_get_node and vm_swap_node operate on a
@@ -305,6 +375,8 @@ local vm_cache = nil
 -- vm_abort.
 function mesecon.vm_begin()
 	vm_cache = {}
+	vm_node_cache = {}
+	vm_update_light = false
 end
 
 -- Finishes a VoxelManipulator-based transaction, freeing the VMs and map data
@@ -313,18 +385,19 @@ function mesecon.vm_commit()
 	for hash, tbl in pairs(vm_cache) do
 		if tbl.dirty then
 			local vm = tbl.vm
-			vm:set_data(tbl.data)
-			vm:write_to_map()
+			vm:write_to_map(vm_update_light)
 			vm:update_map()
 		end
 	end
 	vm_cache = nil
+	vm_node_cache = nil
 end
 
 -- Finishes a VoxelManipulator-based transaction, freeing the VMs and throwing
 -- away any modified areas.
 function mesecon.vm_abort()
 	vm_cache = nil
+	vm_node_cache = nil
 end
 
 -- Gets the cache entry covering a position, populating it if necessary.
@@ -332,10 +405,7 @@ local function vm_get_or_create_entry(pos)
 	local hash = hash_blockpos(pos)
 	local tbl = vm_cache[hash]
 	if not tbl then
-		local vm = minetest.get_voxel_manip(pos, pos)
-		local min_pos, max_pos = vm:get_emerged_area()
-		local va = VoxelArea:new{MinEdge = min_pos, MaxEdge = max_pos}
-		tbl = {vm = vm, va = va, data = vm:get_data(), param1 = vm:get_light_data(), param2 = vm:get_param2_data(), dirty = false}
+		tbl = {vm = minetest.get_voxel_manip(pos, pos), dirty = false}
 		vm_cache[hash] = tbl
 	end
 	return tbl
@@ -344,25 +414,34 @@ end
 -- Gets the node at a given position during a VoxelManipulator-based
 -- transaction.
 function mesecon.vm_get_node(pos)
-	local tbl = vm_get_or_create_entry(pos)
-	local index = tbl.va:indexp(pos)
-	local node_value = tbl.data[index]
-	if node_value == core.CONTENT_IGNORE then
-		return nil
-	else
-		local node_param1 = tbl.param1[index]
-		local node_param2 = tbl.param2[index]
-		return {name = minetest.get_name_from_content_id(node_value), param1 = node_param1, param2 = node_param2}
+	local hash = minetest.hash_node_position(pos)
+	local node = vm_node_cache[hash]
+	if not node then
+		node = vm_get_or_create_entry(pos).vm:get_node_at(pos)
+		vm_node_cache[hash] = node
 	end
+	return node.name ~= "ignore" and {name = node.name, param1 = node.param1, param2 = node.param2} or nil
 end
 
 -- Sets a node’s name during a VoxelManipulator-based transaction.
 --
 -- Existing param1, param2, and metadata are left alone.
-function mesecon.vm_swap_node(pos, name)
+--
+-- The swap will necessitate a light update unless update_light equals false.
+function mesecon.vm_swap_node(pos, name, update_light)
+	-- If one node needs a light update, all VMs should use light updates to
+	-- prevent newly calculated light from being overwritten by other VMs.
+	vm_update_light = vm_update_light or update_light ~= false
+
 	local tbl = vm_get_or_create_entry(pos)
-	local index = tbl.va:indexp(pos)
-	tbl.data[index] = minetest.get_content_id(name)
+	local hash = minetest.hash_node_position(pos)
+	local node = vm_node_cache[hash]
+	if not node then
+		node = tbl.vm:get_node_at(pos)
+		vm_node_cache[hash] = node
+	end
+	node.name = name
+	tbl.vm:set_node_at(pos, node)
 	tbl.dirty = true
 end
 
@@ -398,9 +477,11 @@ end
 --
 -- This function can only be used to change the node’s name, not its parameters
 -- or metadata.
-function mesecon.swap_node_force(pos, name)
+--
+-- The swap will necessitate a light update unless update_light equals false.
+function mesecon.swap_node_force(pos, name, update_light)
 	if vm_cache then
-		return mesecon.vm_swap_node(pos, name)
+		return mesecon.vm_swap_node(pos, name, update_light)
 	else
 		-- This serves to both ensure the mapblock is loaded and also hand us
 		-- the old node table so we can preserve param2.

mesecons_blinkyplant/init.lua

@@ -26,13 +26,19 @@ mesecon.register_node("mesecons_blinkyplant:blinky_plant", {
 	paramtype = "light",
 	is_ground_content = false,
 	walkable = false,
-	sounds = default.node_sound_leaves_defaults(),
+	sounds = mesecon.node_sound.leaves,
 	selection_box = {
 		type = "fixed",
 		fixed = {-0.3, -0.5, -0.3, 0.3, -0.5+0.7, 0.3},
 	},
 	on_timer = on_timer,
-	on_rightclick = toggle_timer,
+	on_rightclick = function(pos, _, clicker)
+		if minetest.is_protected(pos, clicker and clicker:get_player_name() or "") then
+			return
+		end
+
+		toggle_timer(pos)
+	end,
 	on_construct = toggle_timer
 },{
 	tiles = {"jeija_blinky_plant_off.png"},

mesecons_blinkyplant/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_blinkyplant
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_button/init.lua

@@ -13,6 +13,8 @@ mesecon.button_turnoff = function (pos)
 	mesecon.receptor_off(pos, rules)
 end
 
+local use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or nil
+
 minetest.register_node("mesecons_button:button_off", {
 	drawtype = "nodebox",
 	tiles = {
@@ -23,6 +25,7 @@ minetest.register_node("mesecons_button:button_off", {
 		"jeija_wall_button_sides.png",
 		"jeija_wall_button_off.png"
 	},
+	use_texture_alpha = use_texture_alpha,
 	paramtype = "light",
 	paramtype2 = "facedir",
 	is_ground_content = false,
@@ -49,7 +52,7 @@ minetest.register_node("mesecons_button:button_off", {
 		minetest.sound_play("mesecons_button_push", { pos = pos }, true)
 		minetest.get_node_timer(pos):start(1)
 	end,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	mesecons = {receptor = {
 		state = mesecon.state.off,
 		rules = mesecon.rules.buttonlike_get
@@ -67,6 +70,7 @@ minetest.register_node("mesecons_button:button_on", {
 		"jeija_wall_button_sides.png",
 		"jeija_wall_button_on.png"
 	},
+	use_texture_alpha = use_texture_alpha,
 	paramtype = "light",
 	paramtype2 = "facedir",
 	is_ground_content = false,
@@ -89,7 +93,7 @@ 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(),
+	sounds = mesecon.node_sound.stone,
 	mesecons = {receptor = {
 		state = mesecon.state.on,
 		rules = mesecon.rules.buttonlike_get
@@ -101,6 +105,6 @@ minetest.register_node("mesecons_button:button_on", {
 minetest.register_craft({
 	output = "mesecons_button:button_off 2",
 	recipe = {
-		{"group:mesecon_conductor_craftable","default:stone"},
+		{"group:mesecon_conductor_craftable","mesecons_gamecompat:stone"},
 	}
 })

mesecons_button/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_button
-depends = mesecons, mesecons_receiver
+depends = mesecons, mesecons_gamecompat, mesecons_receiver

mesecons_commandblock/init.lua

@@ -10,6 +10,7 @@ minetest.register_chatcommand("say", {
 minetest.register_chatcommand("tell", {
 	params = "<name> <text>",
 	description = "Say <text> to <name> privately",
+	privs = {shout=true},
 	func = function(name, param)
 		local found, _, target, message = param:find("^([^%s]+)%s+(.*)$")
 		if found == nil then
@@ -78,7 +79,7 @@ local function after_place(pos, placer)
 	end
 end
 
-local function receive_fields(pos, formname, fields, sender)
+local function receive_fields(pos, _, fields, sender)
 	if not fields.submit then
 		return
 	end
@@ -188,7 +189,7 @@ minetest.register_node("mesecons_commandblock:commandblock_off", {
 	after_place_node = after_place,
 	on_receive_fields = receive_fields,
 	can_dig = can_dig,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	mesecons = {effector = {
 		action_on = commandblock_action_on
 	}},
@@ -205,7 +206,7 @@ minetest.register_node("mesecons_commandblock:commandblock_on", {
 	after_place_node = after_place,
 	on_receive_fields = receive_fields,
 	can_dig = can_dig,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	mesecons = {effector = {
 		action_off = commandblock_action_off
 	}},

mesecons_commandblock/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_commandblock
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_delayer/init.lua

@@ -1,19 +1,7 @@
 -- Function that get the input/output rules of the delayer
-local delayer_get_output_rules = function(node)
-	local rules = {{x = 0, y = 0, z = 1}}
-	for i = 0, node.param2 do
-		rules = mesecon.rotate_rules_left(rules)
-	end
-	return rules
-end
+local delayer_get_output_rules = mesecon.horiz_rules_getter({{x = 1, y = 0, z = 0}})
 
-local delayer_get_input_rules = function(node)
-	local rules = {{x = 0, y = 0, z = -1}}
-	for i = 0, node.param2 do
-		rules = mesecon.rotate_rules_left(rules)
-	end
-	return rules
-end
+local delayer_get_input_rules = mesecon.horiz_rules_getter({{x = -1, y = 0, z = 0}})
 
 -- Functions that are called after the delay time
 
@@ -54,6 +42,7 @@ local boxes = {
 -- Delayer definition defaults
 local def = {
 	drawtype = "nodebox",
+	use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or nil,
 	walkable = true,
 	selection_box = {
 		type = "fixed",
@@ -68,7 +57,7 @@ local def = {
 	sunlight_propagates = true,
 	is_ground_content = false,
 	delayer_time = delaytime[i],
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	on_blast = mesecon.on_blastnode,
 	drop = "mesecons_delayer:delayer_off_1",
 }
@@ -93,7 +82,7 @@ local off_state = {
 	wield_image = "mesecons_delayer_off_1.png",
 	groups = off_groups,
 	on_punch = function(pos, node, puncher)
-		if minetest.is_protected(pos, puncher and puncher:get_player_name()) then
+		if minetest.is_protected(pos, puncher and puncher:get_player_name() or "") then
 			return
 		end
 
@@ -134,7 +123,7 @@ local on_state = {
 	},
 	groups = {bendy = 2, snappy = 1, dig_immediate = 2, not_in_creative_inventory = 1},
 	on_punch = function(pos, node, puncher)
-		if minetest.is_protected(pos, puncher and puncher:get_player_name()) then
+		if minetest.is_protected(pos, puncher and puncher:get_player_name() or "") then
 			return
 		end
 
@@ -168,6 +157,6 @@ minetest.register_craft({
 	output = "mesecons_delayer:delayer_off_1",
 	recipe = {
 		{"mesecons_torch:mesecon_torch_on", "group:mesecon_conductor_craftable", "mesecons_torch:mesecon_torch_on"},
-		{"default:cobble","default:cobble", "default:cobble"},
+		{"mesecons_gamecompat:cobble","mesecons_gamecompat:cobble", "mesecons_gamecompat:cobble"},
 	}
 })

mesecons_delayer/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_delayer
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_detector/init.lua

@@ -1,3 +1,5 @@
+local side_texture = mesecon.texture.steel_block or "mesecons_detector_side.png"
+
 local GET_COMMAND = "GET"
 
 -- Object detector
@@ -12,7 +14,7 @@ local function object_detector_make_formspec(pos)
 		"button_exit[7,0.75;2,3;;Save]")
 end
 
-local function object_detector_on_receive_fields(pos, formname, fields, sender)
+local function object_detector_on_receive_fields(pos, _, fields, sender)
 	if not fields.scanname or not fields.digiline_channel then return end
 
 	if minetest.is_protected(pos, sender:get_player_name()) then return end
@@ -53,7 +55,7 @@ end
 -- set player name when receiving a digiline signal on a specific channel
 local object_detector_digiline = {
 	effector = {
-		action = function(pos, node, channel, msg)
+		action = function(pos, _, channel, msg)
 			local meta = minetest.get_meta(pos)
 			if channel == meta:get_string("digiline_channel") then
 				meta:set_string("scanname", msg)
@@ -64,7 +66,7 @@ local object_detector_digiline = {
 }
 
 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"},
+	tiles = {side_texture, side_texture, "jeija_object_detector_off.png", "jeija_object_detector_off.png", "jeija_object_detector_off.png", "jeija_object_detector_off.png"},
 	paramtype = "light",
 	is_ground_content = false,
 	walkable = true,
@@ -76,13 +78,13 @@ minetest.register_node("mesecons_detector:object_detector_off", {
 	}},
 	on_construct = object_detector_make_formspec,
 	on_receive_fields = object_detector_on_receive_fields,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	digiline = object_detector_digiline,
 	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_node("mesecons_detector:object_detector_on", {
-	tiles = {"default_steel_block.png", "default_steel_block.png", "jeija_object_detector_on.png", "jeija_object_detector_on.png", "jeija_object_detector_on.png", "jeija_object_detector_on.png"},
+	tiles = {side_texture, side_texture, "jeija_object_detector_on.png", "jeija_object_detector_on.png", "jeija_object_detector_on.png", "jeija_object_detector_on.png"},
 	paramtype = "light",
 	is_ground_content = false,
 	walkable = true,
@@ -94,7 +96,7 @@ minetest.register_node("mesecons_detector:object_detector_on", {
 	}},
 	on_construct = object_detector_make_formspec,
 	on_receive_fields = object_detector_on_receive_fields,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	digiline = object_detector_digiline,
 	on_blast = mesecon.on_blastnode,
 })
@@ -102,18 +104,18 @@ minetest.register_node("mesecons_detector:object_detector_on", {
 minetest.register_craft({
 	output = 'mesecons_detector:object_detector_off',
 	recipe = {
-		{"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"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_luacontroller:luacontroller0000", "mesecons_gamecompat:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot"},
 	}
 })
 
 minetest.register_craft({
 	output = 'mesecons_detector:object_detector_off',
 	recipe = {
-		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
-		{"default:steel_ingot", "mesecons_microcontroller:microcontroller0000", "default:steel_ingot"},
-		{"default:steel_ingot", "group:mesecon_conductor_craftable", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_microcontroller:microcontroller0000", "mesecons_gamecompat:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot"},
 	}
 })
 
@@ -156,7 +158,7 @@ local function node_detector_make_formspec(pos)
 		"button_exit[7,0.75;2,3;;Save]")
 end
 
-local function node_detector_on_receive_fields(pos, fieldname, fields, sender)
+local function node_detector_on_receive_fields(pos, _, fields, sender)
 	if not fields.scanname or not fields.digiline_channel then return end
 
 	if minetest.is_protected(pos, sender:get_player_name()) then return end
@@ -238,25 +240,8 @@ local node_detector_digiline = {
 	receptor = {}
 }
 
-local function after_place_node_detector(pos, placer)
-	local placer_pos = placer:get_pos()
-	if not placer_pos then
-		return
-	end
-
-	--correct for the player's height
-	if placer:is_player() then
-		placer_pos.y = placer_pos.y + 1.625
-	end
-
-	--correct for 6d facedir
-	local node = minetest.get_node(pos)
-	node.param2 = minetest.dir_to_facedir(vector.subtract(pos, placer_pos), true)
-	minetest.set_node(pos, node)
-end
-
 minetest.register_node("mesecons_detector:node_detector_off", {
-	tiles = {"default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "jeija_node_detector_off.png"},
+	tiles = {side_texture, side_texture, side_texture, side_texture, side_texture, "jeija_node_detector_off.png"},
 	paramtype = "light",
 	paramtype2 = "facedir",
 	is_ground_content = false,
@@ -268,13 +253,13 @@ minetest.register_node("mesecons_detector:node_detector_off", {
 	}},
 	on_construct = node_detector_make_formspec,
 	on_receive_fields = node_detector_on_receive_fields,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	digiline = node_detector_digiline,
 	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_node("mesecons_detector:node_detector_on", {
-	tiles = {"default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "jeija_node_detector_on.png"},
+	tiles = {side_texture, side_texture, side_texture, side_texture, side_texture, "jeija_node_detector_on.png"},
 	paramtype = "light",
 	paramtype2 = "facedir",
 	is_ground_content = false,
@@ -286,7 +271,7 @@ minetest.register_node("mesecons_detector:node_detector_on", {
 	}},
 	on_construct = node_detector_make_formspec,
 	on_receive_fields = node_detector_on_receive_fields,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	digiline = node_detector_digiline,
 	on_blast = mesecon.on_blastnode,
 })
@@ -294,18 +279,18 @@ minetest.register_node("mesecons_detector:node_detector_on", {
 minetest.register_craft({
 	output = 'mesecons_detector:node_detector_off',
 	recipe = {
-		{"default:steel_ingot", "group:mesecon_conductor_craftable", "default:steel_ingot"},
-		{"default:steel_ingot", "mesecons_luacontroller:luacontroller0000", "default:steel_ingot"},
-		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_luacontroller:luacontroller0000", "mesecons_gamecompat:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot"},
 	}
 })
 
 minetest.register_craft({
 	output = 'mesecons_detector:node_detector_off',
 	recipe = {
-		{"default:steel_ingot", "group:mesecon_conductor_craftable", "default:steel_ingot"},
-		{"default:steel_ingot", "mesecons_microcontroller:microcontroller0000", "default:steel_ingot"},
-		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_microcontroller:microcontroller0000", "mesecons_gamecompat:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot"},
 	}
 })
 

mesecons_detector/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_detector
-depends = mesecons, mesecons_materials
+depends = mesecons, mesecons_gamecompat, mesecons_materials

mesecons_doors/init.lua

@@ -1,7 +1,7 @@
 -- Modified, from minetest_game/mods/doors/init.lua
 local function on_rightclick(pos, dir, check_name, replace, replace_dir, params)
 	pos.y = pos.y + dir
-	if not minetest.get_node(pos).name == check_name then
+	if minetest.get_node(pos).name ~= check_name then
 		return
 	end
 	local p2 = minetest.get_node(pos).param2
@@ -22,11 +22,11 @@ end
 local function meseconify_door(name)
 	if minetest.registered_items[name .. "_b_1"] then
 		-- old style double-node doors
-		local function toggle_state1 (pos, node)
+		local function toggle_state1 (pos)
 			on_rightclick(pos, 1, name.."_t_1", name.."_b_2", name.."_t_2", {1,2,3,0})
 		end
 
-		local function toggle_state2 (pos, node)
+		local function toggle_state2 (pos)
 			on_rightclick(pos, 1, name.."_t_2", name.."_b_1", name.."_t_1", {3,0,1,2})
 		end
 
@@ -49,13 +49,13 @@ local function meseconify_door(name)
 		-- new style mesh node based doors
 		local override = {
 			mesecons = {effector = {
-				action_on = function(pos, node)
+				action_on = function(pos)
 					local door = doors.get(pos)
 					if door then
 						door:open()
 					end
 				end,
-				action_off = function(pos, node)
+				action_off = function(pos)
 					local door = doors.get(pos)
 					if door then
 						door:close()
@@ -66,6 +66,10 @@ local function meseconify_door(name)
 		}
 		minetest.override_item(name .. "_a", override)
 		minetest.override_item(name .. "_b", override)
+		if minetest.registered_items[name .. "_c"] then
+			minetest.override_item(name .. "_c", override)
+			minetest.override_item(name .. "_d", override)
+		end
 	end
 end
 
@@ -93,13 +97,13 @@ end
 if doors and doors.get then
 	local override = {
 		mesecons = {effector = {
-			action_on = function(pos, node)
+			action_on = function(pos)
 				local door = doors.get(pos)
 				if door then
 					door:open()
 				end
 			end,
-			action_off = function(pos, node)
+			action_off = function(pos)
 				local door = doors.get(pos)
 				if door then
 					door:close()

mesecons_extrawires/corner.lua

@@ -1,21 +1,12 @@
-local screwdriver_exists = minetest.global_exists("screwdriver")
-
 local corner_selectionbox = {
 		type = "fixed",
 		fixed = { -16/32, -16/32, -16/32, 5/32, -12/32, 5/32 },
 }
 
-local corner_get_rules = function (node)
-	local rules =
-	{{x = 1,  y = 0,  z =  0},
-	 {x = 0,  y = 0,  z = -1}}
-
-	for i = 0, node.param2 do
-		rules = mesecon.rotate_rules_left(rules)
-	end
-
-	return rules
-end
+local corner_get_rules = mesecon.horiz_rules_getter({
+	{x = 0, y = 0, z = -1},
+	{x = -1, y = 0, z = 0},
+})
 
 minetest.register_node("mesecons_extrawires:corner_on", {
 	drawtype = "mesh",
@@ -30,10 +21,9 @@ minetest.register_node("mesecons_extrawires:corner_on", {
 	walkable = false,
 	sunlight_propagates = true,
 	selection_box = corner_selectionbox,
-	node_box = corner_nodebox,
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
 	drop = "mesecons_extrawires:corner_off",
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {conductor =
 	{
 		state = mesecon.state.on,
@@ -41,7 +31,7 @@ minetest.register_node("mesecons_extrawires:corner_on", {
 		offstate = "mesecons_extrawires:corner_off"
 	}},
 	on_blast = mesecon.on_blastnode,
-	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
+	on_rotate = mesecon.on_rotate_horiz,
 })
 
 minetest.register_node("mesecons_extrawires:corner_off", {
@@ -58,9 +48,8 @@ minetest.register_node("mesecons_extrawires:corner_off", {
 	walkable = false,
 	sunlight_propagates = true,
 	selection_box = corner_selectionbox,
-	node_box = corner_nodebox,
 	groups = {dig_immediate = 3},
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {conductor =
 	{
 		state = mesecon.state.off,
@@ -68,7 +57,7 @@ minetest.register_node("mesecons_extrawires:corner_off", {
 		onstate = "mesecons_extrawires:corner_on"
 	}},
 	on_blast = mesecon.on_blastnode,
-	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
+	on_rotate = mesecon.on_rotate_horiz,
 })
 
 minetest.register_craft({

mesecons_extrawires/crossover.lua

@@ -1,5 +1,4 @@
-local function crossover_get_rules(node)
-	return {
+local crossover_rules = {
 	{--first wire
 		{x=-1,y=0,z=0},
 		{x=1,y=0,z=0},
@@ -8,8 +7,7 @@ local function crossover_get_rules(node)
 		{x=0,y=0,z=-1},
 		{x=0,y=0,z=1},
 	},
-	}
-end
+}
 
 local crossover_states = {
 	"mesecons_extrawires:crossover_off",
@@ -34,11 +32,11 @@ minetest.register_node("mesecons_extrawires:crossover_off", {
 	stack_max = 99,
 	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
 	groups = {dig_immediate=3, mesecon=3},
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {
 		conductor = {
 			states = crossover_states,
-			rules = crossover_get_rules(),
+			rules = crossover_rules,
 		}
 	},
 	on_blast = mesecon.on_blastnode,
@@ -61,11 +59,11 @@ minetest.register_node("mesecons_extrawires:crossover_01", {
 	stack_max = 99,
 	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
 	groups = {dig_immediate=3, mesecon=3, not_in_creative_inventory=1},
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {
 		conductor = {
 			states = crossover_states,
-			rules = crossover_get_rules(),
+			rules = crossover_rules,
 		}
 	},
 	on_blast = mesecon.on_blastnode,
@@ -88,11 +86,11 @@ minetest.register_node("mesecons_extrawires:crossover_10", {
 	stack_max = 99,
 	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
 	groups = {dig_immediate=3, mesecon=3, not_in_creative_inventory=1},
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {
 		conductor = {
 			states = crossover_states,
-			rules = crossover_get_rules(),
+			rules = crossover_rules,
 		}
 	},
 	on_blast = mesecon.on_blastnode,
@@ -115,11 +113,11 @@ minetest.register_node("mesecons_extrawires:crossover_on", {
 	stack_max = 99,
 	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
 	groups = {dig_immediate=3, mesecon=3, not_in_creative_inventory=1},
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {
 		conductor = {
 			states = crossover_states,
-			rules = crossover_get_rules(),
+			rules = crossover_rules,
 		}
 	},
 	on_blast = mesecon.on_blastnode,

mesecons_extrawires/doublecorner.lua

@@ -1,12 +1,9 @@
-local rotate
-if minetest.global_exists("screwdriver") then rotate = screwdriver.rotate_simple end
-
 local doublecorner_selectionbox = {
 	type = "fixed",
 	fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
 }
 
-local rules = {
+local doublecorner_get_rules = mesecon.horiz_rules_getter({
 	{
 		{ x = 1, y = 0, z = 0 },
 		{ x = 0, y = 0, z = 1 },
@@ -15,19 +12,7 @@ local rules = {
 		{ x = -1, y = 0, z = 0 },
 		{ x = 0, y = 0, z = -1 },
 	},
-}
-
-local doublecorner_rules = {}
-for k = 1, 4 do
-	doublecorner_rules[k] = table.copy(rules)
-	for i, r in ipairs(rules) do
-		rules[i] = mesecon.rotate_rules_left(r)
-	end
-end
-
-local function doublecorner_get_rules(node)
-	return doublecorner_rules[node.param2 % 4 + 1]
-end
+})
 
 local doublecorner_states = {
 	"mesecons_extrawires:doublecorner_00",
@@ -61,7 +46,7 @@ for k, state in ipairs(doublecorner_states) do
 		selection_box = doublecorner_selectionbox,
 		groups = groups,
 		drop = doublecorner_states[1],
-		sounds = default.node_sound_defaults(),
+		sounds = mesecon.node_sound.default,
 		mesecons = {
 			conductor = {
 				states = doublecorner_states,
@@ -69,7 +54,7 @@ for k, state in ipairs(doublecorner_states) do
 			},
 		},
 		on_blast = mesecon.on_blastnode,
-		on_rotate = rotate,
+		on_rotate = mesecon.on_rotate_horiz,
 	})
 end
 

mesecons_extrawires/mesewire.lua

@@ -1,3 +1,20 @@
+local mese_nodename = minetest.registered_aliases["mesecons_gamecompat:mese"]
+if mese_nodename then
+	-- Convert placeholders.
+	minetest.register_alias("mesecons_extrawires:mese", mese_nodename)
+else
+	-- Register placeholder.
+	mese_nodename = "mesecons_extrawires:mese"
+	minetest.register_node("mesecons_extrawires:mese", {
+		description = "Mese Wire",
+		tiles = {"mesecons_wire_off.png"},
+		paramtype = "light",
+		light_source = 3,
+		groups = {cracky = 1},
+		sounds = mesecon.node_sound.stone,
+	})
+end
+
 local mesewire_rules =
 {
 	{x = 1, y = 0, z = 0},
@@ -8,7 +25,7 @@ local mesewire_rules =
 	{x = 0, y = 0, z =-1},
 }
 
-minetest.override_item("default:mese", {
+minetest.override_item(mese_nodename, {
 	mesecons = {conductor = {
 		state = mesecon.state.off,
 		onstate = "mesecons_extrawires:mese_powered",
@@ -18,15 +35,17 @@ minetest.override_item("default:mese", {
 
 -- Copy node definition of powered mese from normal mese
 -- and brighten texture tiles to indicate mese is powered
-local powered_def = mesecon.mergetable(minetest.registered_nodes["default:mese"], {
-	drop = "default:mese",
-	light_source = 5,
+local unpowered_def = minetest.registered_nodes[mese_nodename]
+local powered_def = mesecon.merge_tables(unpowered_def, {
+	drop = mese_nodename,
+	paramtype = "light",
+	light_source = math.min(unpowered_def.light_source + 2, minetest.LIGHT_MAX),
 	mesecons = {conductor = {
 		state = mesecon.state.on,
-		offstate = "default:mese",
+		offstate = mese_nodename,
 		rules = mesewire_rules
 	}},
-	groups = {cracky = 1, not_in_creative_inventory = 1},
+	groups = mesecon.merge_tables(unpowered_def.groups or {}, {not_in_creative_inventory = 1}),
 	on_blast = mesecon.on_blastnode,
 })
 

mesecons_extrawires/mod.conf

@@ -1,3 +1,2 @@
 name = mesecons_extrawires
-depends = default, mesecons
-optional_depends = screwdriver
+depends = mesecons, mesecons_gamecompat

mesecons_extrawires/tjunction.lua

@@ -1,5 +1,3 @@
-local screwdriver_exists = minetest.global_exists("screwdriver")
-
 local tjunction_nodebox = {
 	type = "fixed",
 	-- ±0.001 is to prevent z-fighting
@@ -12,18 +10,11 @@ local tjunction_selectionbox = {
 		fixed = { -16/32, -16/32, -16/32, 16/32, -12/32, 7/32 },
 }
 
-local tjunction_get_rules = function (node)
-	local rules =
-	{{x = 0,  y = 0,  z =  1},
+local tjunction_get_rules = mesecon.horiz_rules_getter({
 	{x = 1, y = 0, z = 0},
-	 {x = 0,  y = 0,  z = -1}}
-
-	for i = 0, node.param2 do
-		rules = mesecon.rotate_rules_left(rules)
-	end
-
-	return rules
-end
+	{x = 0, y = 0, z = -1},
+	{x = -1, y = 0, z = 0},
+})
 
 minetest.register_node("mesecons_extrawires:tjunction_on", {
 	drawtype = "nodebox",
@@ -44,7 +35,7 @@ minetest.register_node("mesecons_extrawires:tjunction_on", {
 	node_box = tjunction_nodebox,
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
 	drop = "mesecons_extrawires:tjunction_off",
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {conductor =
 	{
 		state = mesecon.state.on,
@@ -52,7 +43,7 @@ minetest.register_node("mesecons_extrawires:tjunction_on", {
 		offstate = "mesecons_extrawires:tjunction_off"
 	}},
 	on_blast = mesecon.on_blastnode,
-	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
+	on_rotate = mesecon.on_rotate_horiz,
 })
 
 minetest.register_node("mesecons_extrawires:tjunction_off", {
@@ -74,7 +65,7 @@ minetest.register_node("mesecons_extrawires:tjunction_off", {
 	selection_box = tjunction_selectionbox,
 	node_box = tjunction_nodebox,
 	groups = {dig_immediate = 3},
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {conductor =
 	{
 		state = mesecon.state.off,
@@ -82,7 +73,7 @@ minetest.register_node("mesecons_extrawires:tjunction_off", {
 		onstate = "mesecons_extrawires:tjunction_on"
 	}},
 	on_blast = mesecon.on_blastnode,
-	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
+	on_rotate = mesecon.on_rotate_horiz,
 })
 
 minetest.register_craft({

mesecons_extrawires/vertical.lua

@@ -69,7 +69,7 @@ local vertical_updatepos = function (pos)
 	end
 end
 
-local vertical_update = function (pos, node)
+local vertical_update = function (pos)
 	vertical_updatepos(pos) -- this one
 	vertical_updatepos(vector.add(pos, vertical_rules[1])) -- above
 	vertical_updatepos(vector.add(pos, vertical_rules[2])) -- below
@@ -89,7 +89,7 @@ mesecon.register_node("mesecons_extrawires:vertical", {
 	drop = "mesecons_extrawires:vertical_off",
 	after_place_node = vertical_update,
 	after_dig_node = vertical_update,
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 },{
 	tiles = {"mesecons_wire_off.png"},
 	groups = {dig_immediate=3},
@@ -123,7 +123,7 @@ mesecon.register_node("mesecons_extrawires:vertical_top", {
 	drop = "mesecons_extrawires:vertical_off",
 	after_place_node = vertical_update,
 	after_dig_node = vertical_update,
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 },{
 	tiles = {"mesecons_wire_off.png"},
 	mesecons = {conductor = {
@@ -155,7 +155,7 @@ mesecon.register_node("mesecons_extrawires:vertical_bottom", {
 	drop = "mesecons_extrawires:vertical_off",
 	after_place_node = vertical_update,
 	after_dig_node = vertical_update,
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 },{
 	tiles = {"mesecons_wire_off.png"},
 	mesecons = {conductor = {
@@ -175,9 +175,9 @@ mesecon.register_node("mesecons_extrawires:vertical_bottom", {
 minetest.register_craft({
 	output = "mesecons_extrawires:vertical_off 3",
 	recipe = {
-		{"mesecons:wire_00000000_off"},
-		{"mesecons:wire_00000000_off"},
-		{"mesecons:wire_00000000_off"}
+		{"group:mesecon_conductor_craftable"},
+		{"group:mesecon_conductor_craftable"},
+		{"group:mesecon_conductor_craftable"},
 	}
 })
 

mesecons_fpga/init.lua

@@ -96,7 +96,7 @@ plg.register_nodes({
 		meta:set_int("valid", 0)
 		meta:set_string("infotext", "FPGA")
 	end,
-	on_rightclick = function(pos, node, clicker)
+	on_rightclick = function(pos, _, clicker)
 		if not minetest.is_player(clicker) then
 			return
 		end
@@ -109,14 +109,15 @@ plg.register_nodes({
 		local is = lcore.deserialize(meta:get_string("instr"))
 		minetest.show_formspec(name, "mesecons:fpga", plg.to_formspec_string(is, nil))
 	end,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	mesecons = {
 		effector = {
 			rules = {}, -- replaced later
-			action_change = function(pos, node, rule, newstate)
-				plg.ports_changed(pos, rule, newstate)
+			action_change = function(pos, _, rule, newstate)
+				if plg.ports_changed(pos, rule, newstate) then
 					plg.update(pos)
 				end
+			end
 		}
 	},
 	after_dig_node = function(pos, node)
@@ -129,7 +130,7 @@ plg.register_nodes({
 		end
 	end,
 	on_blast = mesecon.on_blastnode,
-	on_rotate = function(pos, node, user, mode)
+	on_rotate = function(pos, _, user, mode)
 		local abcd1 = {"A", "B", "C", "D"}
 		local abcd2 = {A = 1, B = 2, C = 3, D = 4}
 		local ops = {"op1", "op2", "dst"}
@@ -326,8 +327,10 @@ plg.update = function(pos)
 	plg.setports(pos, A, B, C, D)
 end
 
+-- Updates the port states according to the signal change.
+-- Returns whether the port states actually changed.
 plg.ports_changed = function(pos, rule, newstate)
-	if rule == nil then return end
+	if rule == nil then return false end
 	local meta = minetest.get_meta(pos)
 	local states
 
@@ -347,10 +350,14 @@ plg.ports_changed = function(pos, rule, newstate)
 	local portno = ({4, 1, nil, 3, 2})[3 + rule.x + 2*rule.z]
 	states[portno] = (newstate == "on")
 
-	meta:set_string("portstates",
+	local new_portstates =
 			(states[1] and "1" or "0") .. (states[2] and "1" or "0") ..
 			(states[3] and "1" or "0") .. (states[4] and "1" or "0")
-	)
+	if new_portstates ~= s then
+		meta:set_string("portstates", new_portstates)
+		return true
+	end
+	return false
 end
 
 plg.getports = function(pos) -- gets merged states of INPUT & OUTPUT

mesecons_fpga/logic.lua

@@ -10,10 +10,10 @@ local operations = {
 	-- unary:   Whether this gate only has one input
 	{ gate = "and",  short = "&", fs_name = " AND", func = function(a, b) return a and b end },
 	{ gate = "or",   short = "|", fs_name = "  OR", func = function(a, b) return a or b end },
-	{ gate = "not",  short = "~", fs_name = " NOT", func = function(a, b) return not b end, unary = true },
+	{ gate = "not",  short = "~", fs_name = " NOT", func = function(_, b) return not b end, unary = true },
 	{ gate = "xor",  short = "^", fs_name = " XOR", func = function(a, b) return a ~= b end },
 	{ gate = "nand", short = "?", fs_name = "NAND", func = function(a, b) return not (a and b) end },
-	{ gate = "buf",  short = "_", fs_name = "   =", func = function(a, b) return b end, unary = true },
+	{ gate = "buf",  short = "_", fs_name = "   =", func = function(_, b) return b end, unary = true },
 	{ gate = "xnor", short = "=", fs_name = "XNOR", func = function(a, b) return a == b end },
 	{ gate = "nor",  short = "!", fs_name = " NOR", func = function(a, b) return not (a or b) end },
 }

mesecons_fpga/mod.conf

@@ -1,3 +1,3 @@
 name = mesecons_fpga
-depends = mesecons
+depends = mesecons, mesecons_gamecompat
 optional_depends = screwdriver

mesecons_gamecompat/compat_mtg.lua

@@ -0,0 +1,71 @@
+--Aliases
+
+minetest.register_alias("mesecons_gamecompat:chest", "default:chest")
+minetest.register_alias("mesecons_gamecompat:chest_locked", "default:chest_locked")
+minetest.register_alias("mesecons_gamecompat:coalblock", "default:coalblock")
+minetest.register_alias("mesecons_gamecompat:cobble", "default:cobble")
+minetest.register_alias("mesecons_gamecompat:glass", "default:glass")
+minetest.register_alias("mesecons_gamecompat:lava_source", "default:lava_source")
+minetest.register_alias("mesecons_gamecompat:mese", "default:mese")
+minetest.register_alias("mesecons_gamecompat:mese_crystal", "default:mese_crystal")
+minetest.register_alias("mesecons_gamecompat:mese_crystal_fragment", "default:mese_crystal_fragment")
+minetest.register_alias("mesecons_gamecompat:obsidian_glass", "default:obsidian_glass")
+minetest.register_alias("mesecons_gamecompat:stone", "default:stone")
+minetest.register_alias("mesecons_gamecompat:steel_ingot", "default:steel_ingot")
+minetest.register_alias("mesecons_gamecompat:steelblock", "default:steelblock")
+minetest.register_alias("mesecons_gamecompat:torch", "default:torch")
+
+if minetest.get_modpath("dye") then
+	for _, color in ipairs(mesecon.dye_colors) do
+		minetest.register_alias("mesecons_gamecompat:dye_" .. color, "dye:" .. color)
+	end
+end
+
+-- Sounds
+
+mesecon.node_sound.default = default.node_sound_defaults()
+mesecon.node_sound.glass = default.node_sound_glass_defaults()
+mesecon.node_sound.leaves = default.node_sound_leaves_defaults()
+mesecon.node_sound.stone = default.node_sound_stone_defaults()
+mesecon.node_sound.wood = default.node_sound_wood_defaults()
+
+if minetest.get_modpath("fire") then
+	mesecon.sound_name.fire = "fire_fire"
+end
+
+if minetest.get_modpath("tnt") then
+	mesecon.sound_name.explode = "tnt_explode"
+end
+
+-- Textures
+
+mesecon.texture.steel_block = "default_steel_block.png"
+
+-- MVPS stoppers
+
+if minetest.get_modpath("mesecons_mvps") then
+	-- All of the locked and internal nodes in Minetest Game
+	for _, name in ipairs({
+		"default:chest_locked",
+		"default:chest_locked_open",
+		"doors:door_steel_b_1", -- old style doors
+		"doors:door_steel_b_2", --
+		"doors:door_steel_t_1", --
+		"doors:door_steel_t_2", --
+		"doors:door_steel_a",   -- new style doors
+		"doors:door_steel_b",   --
+		"doors:door_steel_c",   --
+		"doors:door_steel_d",   --
+		"doors:hidden",
+		"doors:trapdoor_steel",
+		"doors:trapdoor_steel_open",
+		"xpanes:door_steel_bar_a",
+		"xpanes:door_steel_bar_b",
+		"xpanes:door_steel_bar_c",
+		"xpanes:door_steel_bar_d",
+		"xpanes:trapdoor_steel_bar",
+		"xpanes:trapdoor_steel_bar_open",
+	}) do
+		mesecon.register_mvps_stopper(name)
+	end
+end

mesecons_gamecompat/init.lua

@@ -0,0 +1,15 @@
+mesecon.node_sound = {}
+
+mesecon.sound_name = {}
+
+mesecon.texture = {}
+
+mesecon.dye_colors = {
+	"red", "green", "blue", "grey", "dark_grey", "yellow",
+	"orange", "white", "pink", "magenta", "cyan", "violet",
+}
+
+if minetest.get_modpath("default") then
+	minetest.log("info", "Mesecons: detected Minetest Game for game compatibility")
+	dofile(minetest.get_modpath("mesecons_gamecompat").."/compat_mtg.lua")
+end

mesecons_gamecompat/mod.conf

@@ -0,0 +1,3 @@
+name = mesecons_gamecompat
+depends = mesecons
+optional_depends = fire, default, dye, mesecons_mvps, tnt

mesecons_gates/init.lua

@@ -11,40 +11,31 @@ local nodebox = {
 	},
 }
 
-local function gate_rotate_rules(node, rules)
-	for rotations = 0, node.param2 - 1 do
-		rules = mesecon.rotate_rules_left(rules)
-	end
-	return rules
-end
+local gate_get_output_rules = mesecon.horiz_rules_getter({{x = 1, y = 0, z = 0}})
 
-local function gate_get_output_rules(node)
-	return gate_rotate_rules(node, {{x=1, y=0, z=0}})
-end
+local gate_get_input_rules_oneinput = mesecon.horiz_rules_getter({{x =-1, y = 0, z = 0}})
 
-local function gate_get_input_rules_oneinput(node)
-	return gate_rotate_rules(node, {{x=-1, y=0, z=0}})
-end
-
-local function gate_get_input_rules_twoinputs(node)
-	return gate_rotate_rules(node, {{x=0, y=0, z=1, name="input1"},
-		{x=0, y=0, z=-1, name="input2"}})
-end
+local gate_get_input_rules_twoinputs = mesecon.horiz_rules_getter({
+	{x = 0, y = 0, z = 1, name = "input1"},
+	{x = 0, y = 0, z = -1, name = "input2"},
+})
 
 local function set_gate(pos, node, state)
 	local gate = minetest.registered_nodes[node.name]
 
+	local new_nodename = state and gate.onstate or gate.offstate
+	minetest.swap_node(pos, {name = new_nodename, param2 = node.param2})
+	if new_nodename ~= node.name then
 		if mesecon.do_overheat(pos) then
 			minetest.remove_node(pos)
 			mesecon.receptor_off(pos, gate_get_output_rules(node))
 			minetest.add_item(pos, gate.drop)
 		elseif state then
-		minetest.swap_node(pos, {name = gate.onstate, param2=node.param2})
 			mesecon.receptor_on(pos, gate_get_output_rules(node))
 		else
-		minetest.swap_node(pos, {name = gate.offstate, param2=node.param2})
 			mesecon.receptor_off(pos, gate_get_output_rules(node))
 		end
+	end
 end
 
 local function update_gate(pos, node, link, newstate)
@@ -53,11 +44,36 @@ local function update_gate(pos, node, link, newstate)
 	if gate.inputnumber == 1 then
 		set_gate(pos, node, gate.assess(newstate == "on"))
 	elseif gate.inputnumber == 2 then
+		-- Inputs are stored in param2. Bit 5 is always set.
+		-- input1 is bit 6 and input2 is bit 7.
+		local val1, val2
+		if node.param2 >= 32 then
+			-- Bit 5 is set, so param2 is in the proper format.
+			if link.name == "input1" then
+				val1 = newstate == "on"
+				val2 = node.param2 >= 128
+			else
+				val1 = node.param2 % 128 >= 64
+				val2 = newstate == "on"
+			end
+		else
+			-- Migrate old gates where the inputs are stored as metadata.
+			-- This also triggers for newly placed gates.
 			local meta = minetest.get_meta(pos)
-		meta:set_int(link.name, newstate == "on" and 1 or 0)
-
-		local val1 = meta:get_int("input1") == 1
-		local val2 = meta:get_int("input2") == 1
+			if link.name == "input1" then
+				val1 = newstate == "on"
+				val2 = meta:get_int("input2") == 1
+			else
+				val1 = meta:get_int("input1") == 1
+				val2 = newstate == "on"
+			end
+			-- Set bit 5 so this won't happen again.
+			node.param2 = node.param2 + 32
+			-- Clear the metadata.
+			meta:set_string("input1", "")
+			meta:set_string("input2", "")
+		end
+		node.param2 = node.param2 % 64 + (val1 and 64 or 0) + (val2 and 128 or 0)
 		set_gate(pos, node, gate.assess(val1, val2))
 	end
 end
@@ -65,7 +81,6 @@ end
 local function register_gate(name, inputnumber, assess, recipe, description)
 	local get_inputrules = inputnumber == 2 and gate_get_input_rules_twoinputs or
 		gate_get_input_rules_oneinput
-	description = "Logic Gate: "..name
 
 	local basename = "mesecons_gates:"..name
 	mesecon.register_node(basename, {
@@ -79,12 +94,13 @@ local function register_gate(name, inputnumber, assess, recipe, description)
 		selection_box = selection_box,
 		node_box = nodebox,
 		walkable = true,
-		sounds = default.node_sound_stone_defaults(),
+		sounds = mesecon.node_sound.stone,
 		assess = assess,
 		onstate = basename.."_on",
 		offstate = basename.."_off",
 		inputnumber = inputnumber,
 		after_dig_node = mesecon.do_cooldown,
+		on_rotate = mesecon.on_rotate_horiz,
 	},{
 		tiles = {
 			"jeija_microcontroller_bottom.png^".."jeija_gate_off.png^"..

mesecons_gates/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_gates
-depends = mesecons, mesecons_microcontroller, mesecons_delayer, mesecons_torch, mesecons_materials
+depends = mesecons, mesecons_gamecompat, mesecons_microcontroller, mesecons_delayer, mesecons_torch, mesecons_materials

mesecons_hydroturbine/init.lua

@@ -12,6 +12,7 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_off", {
 		"jeija_hydro_turbine_turbine_top_bottom_off.png",
 		"jeija_hydro_turbine_turbine_misc_off.png"
 	},
+	use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or nil,
 	inventory_image = "jeija_hydro_turbine_inv.png",
 	is_ground_content = false,
 	wield_scale = {x=0.75, y=0.75, z=0.75},
@@ -22,7 +23,7 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_off", {
 		type = "fixed",
 		fixed = { -0.5, -0.5, -0.5, 0.5, 1.5, 0.5 },
 	},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = mesecon.node_sound.metal,
 	mesecons = {receptor = {
 		state = mesecon.state.off
 	}},
@@ -42,6 +43,7 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_on", {
 		{ name = "jeija_hydro_turbine_turbine_misc_on.png",
 		    animation = {type = "vertical_frames", aspect_w = 256, aspect_h = 32, length = 0.4} }
 	},
+	use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "clip" or nil,
 	inventory_image = "jeija_hydro_turbine_inv.png",
 	drop = "mesecons_hydroturbine:hydro_turbine_off 1",
 	groups = {dig_immediate=2,not_in_creative_inventory=1},
@@ -51,7 +53,7 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_on", {
 		type = "fixed",
 		fixed = { -0.5, -0.5, -0.5, 0.5, 1.5, 0.5 },
 	},
-	sounds = default.node_sound_metal_defaults(),
+	sounds = mesecon.node_sound.metal,
 	mesecons = {receptor = {
 		state = mesecon.state.on
 	}},
@@ -62,15 +64,15 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_on", {
 local function is_flowing_water(pos)
 	local name = minetest.get_node(pos).name
 	local is_water = minetest.get_item_group(name, "water") > 0
-	local is_flowing = minetest.registered_items[name].liquidtype == "flowing"
-	return (is_water and is_flowing)
+	local def = minetest.registered_items[name]
+	return is_water and (def and def.liquidtype == "flowing")
 end
 
 minetest.register_abm({
 nodenames = {"mesecons_hydroturbine:hydro_turbine_off"},
 	interval = 1,
 	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
+	action = function(pos)
 		local waterpos={x=pos.x, y=pos.y+1, z=pos.z}
 		if is_flowing_water(waterpos) then
 			minetest.set_node(pos, {name="mesecons_hydroturbine:hydro_turbine_on"})
@@ -83,7 +85,7 @@ minetest.register_abm({
 nodenames = {"mesecons_hydroturbine:hydro_turbine_on"},
 	interval = 1,
 	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
+	action = function(pos)
 		local waterpos={x=pos.x, y=pos.y+1, z=pos.z}
 		if not is_flowing_water(waterpos) then
 			minetest.set_node(pos, {name="mesecons_hydroturbine:hydro_turbine_off"})
@@ -95,9 +97,9 @@ nodenames = {"mesecons_hydroturbine:hydro_turbine_on"},
 minetest.register_craft({
 	output = "mesecons_hydroturbine:hydro_turbine_off 2",
 	recipe = {
-	{"","default:stick", ""},
-	{"default:stick", "default:steel_ingot", "default:stick"},
-	{"","default:stick", ""},
+	{"","grup:stick", ""},
+	{"group:stick", "mesecons_gamecompat:steel_ingot", "group:stick"},
+	{"","group:stick", ""},
 	}
 })
 

mesecons_hydroturbine/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_hydroturbine
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_insulated/init.lua

@@ -1,13 +1,7 @@
-local screwdriver_exists = minetest.global_exists("screwdriver")
-
-local function insulated_wire_get_rules(node)
-	local rules = 	{{x = 1,  y = 0,  z = 0},
-			 {x =-1,  y = 0,  z = 0}}
-	if node.param2 == 1 or node.param2 == 3 then
-		return mesecon.rotate_rules_right(rules)
-	end
-	return rules
-end
+local insulated_wire_get_rules = mesecon.horiz_rules_getter({
+	{x = 1, y = 0, z = 0},
+	{x = -1, y = 0, z = 0},
+})
 
 minetest.register_node("mesecons_insulated:insulated_on", {
 	drawtype = "nodebox",
@@ -36,14 +30,14 @@ minetest.register_node("mesecons_insulated:insulated_on", {
 	},
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
 	drop = "mesecons_insulated:insulated_off",
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {conductor = {
 		state = mesecon.state.on,
 		offstate = "mesecons_insulated:insulated_off",
 		rules = insulated_wire_get_rules
 	}},
 	on_blast = mesecon.on_blastnode,
-	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
+	on_rotate = mesecon.on_rotate_horiz,
 })
 
 minetest.register_node("mesecons_insulated:insulated_off", {
@@ -72,21 +66,21 @@ minetest.register_node("mesecons_insulated:insulated_off", {
 		fixed = { -16/32-0.001, -17/32, -3/32, 16/32+0.001, -13/32, 3/32 }
 	},
 	groups = {dig_immediate = 3},
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {conductor = {
 		state = mesecon.state.off,
 		onstate = "mesecons_insulated:insulated_on",
 		rules = insulated_wire_get_rules
 	}},
 	on_blast = mesecon.on_blastnode,
-	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
+	on_rotate = mesecon.on_rotate_horiz,
 })
 
 minetest.register_craft({
 	output = "mesecons_insulated:insulated_off 3",
 	recipe = {
 		{"mesecons_materials:fiber", "mesecons_materials:fiber", "mesecons_materials:fiber"},
-		{"mesecons:wire_00000000_off", "mesecons:wire_00000000_off", "mesecons:wire_00000000_off"},
+		{"group:mesecon_conductor_craftable", "group:mesecon_conductor_craftable", "group:mesecon_conductor_craftable"},
 		{"mesecons_materials:fiber", "mesecons_materials:fiber", "mesecons_materials:fiber"},
 	}
 })

mesecons_insulated/mod.conf

@@ -1,3 +1,2 @@
 name = mesecons_insulated
-depends = mesecons
-optional_depends = screwdriver
+depends = mesecons, mesecons_gamecompat

mesecons_lamp/init.lua

@@ -9,9 +9,12 @@ local mesecon_lamp_box = {
 	wall_side = {-0.375,-0.3125,-0.3125,-0.5,0.3125,0.3125},
 }
 
+local use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or nil
+
 minetest.register_node("mesecons_lamp:lamp_on", {
 	drawtype = "nodebox",
 	tiles = {"jeija_meselamp_on.png"},
+	use_texture_alpha = use_texture_alpha,
 	paramtype = "light",
 	paramtype2 = "wallmounted",
 	is_ground_content = false,
@@ -23,7 +26,7 @@ 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(),
+	sounds = mesecon.node_sound.glass,
 	mesecons = {effector = {
 		action_off = function (pos, node)
 			minetest.swap_node(pos, {name = "mesecons_lamp:lamp_off", param2 = node.param2})
@@ -36,6 +39,7 @@ minetest.register_node("mesecons_lamp:lamp_on", {
 minetest.register_node("mesecons_lamp:lamp_off", {
 	drawtype = "nodebox",
 	tiles = {"jeija_meselamp_off.png"},
+	use_texture_alpha = use_texture_alpha,
 	inventory_image = "jeija_meselamp.png",
 	wield_image = "jeija_meselamp.png",
 	paramtype = "light",
@@ -47,7 +51,7 @@ 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 = "Mesecon Lamp",
-	sounds = default.node_sound_glass_defaults(),
+	sounds = mesecon.node_sound.glass,
 	mesecons = {effector = {
 		action_on = function (pos, node)
 			minetest.swap_node(pos, {name = "mesecons_lamp:lamp_on", param2 = node.param2})
@@ -60,8 +64,8 @@ minetest.register_node("mesecons_lamp:lamp_off", {
 minetest.register_craft({
 	output = "mesecons_lamp:lamp_off 1",
 	recipe = {
-		{"", "default:glass", ""},
-		{"group:mesecon_conductor_craftable", "default:steel_ingot", "group:mesecon_conductor_craftable"},
-		{"", "default:glass", ""},
+		{"", "mesecons_gamecompat:glass", ""},
+		{"group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable"},
+		{"", "mesecons_gamecompat:glass", ""},
 	}
 })

mesecons_lamp/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_lamp
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_lightstone/init.lua

@@ -23,7 +23,7 @@ function mesecon.lightstone_add(name, base_item, texture_off, texture_on, desc)
 		is_ground_content = false,
 		groups = {cracky = 2, mesecon_effector_off = 1, mesecon = 2},
 		description = desc,
-		sounds = default.node_sound_stone_defaults(),
+		sounds = mesecon.node_sound.stone,
 		mesecons = {effector = {
 			rules = lightstone_rules,
 			action_on = function (pos, node)
@@ -38,7 +38,7 @@ function mesecon.lightstone_add(name, base_item, texture_off, texture_on, desc)
 		groups = {cracky = 2, not_in_creative_inventory = 1, mesecon = 2},
 		drop = "mesecons_lightstone:lightstone_" .. name .. "_off",
 		light_source = minetest.LIGHT_MAX - 2,
-		sounds = default.node_sound_stone_defaults(),
+		sounds = mesecon.node_sound.stone,
 		mesecons = {effector = {
 			rules = lightstone_rules,
 			action_off = function (pos, node)
@@ -52,22 +52,22 @@ function mesecon.lightstone_add(name, base_item, texture_off, texture_on, desc)
 		output = "mesecons_lightstone:lightstone_" .. name .. "_off",
 		recipe = {
 			{"",base_item,""},
-			{base_item,"default:torch",base_item},
+			{base_item,"mesecons_gamecompat:torch",base_item},
 			{"","group:mesecon_conductor_craftable",""}
 		}
 	})
 end
 
 
-mesecon.lightstone_add("red", "dye:red", "jeija_lightstone_red_off.png", "jeija_lightstone_red_on.png", "Red Lightstone")
-mesecon.lightstone_add("green", "dye:green", "jeija_lightstone_green_off.png", "jeija_lightstone_green_on.png", "Green Lightstone")
-mesecon.lightstone_add("blue", "dye:blue", "jeija_lightstone_blue_off.png", "jeija_lightstone_blue_on.png", "Blue Lightstone")
-mesecon.lightstone_add("gray", "dye:grey", "jeija_lightstone_gray_off.png", "jeija_lightstone_gray_on.png", "Grey Lightstone")
-mesecon.lightstone_add("darkgray", "dye:dark_grey", "jeija_lightstone_darkgray_off.png", "jeija_lightstone_darkgray_on.png", "Dark Grey Lightstone")
-mesecon.lightstone_add("yellow", "dye:yellow", "jeija_lightstone_yellow_off.png", "jeija_lightstone_yellow_on.png", "Yellow Lightstone")
-mesecon.lightstone_add("orange", "dye:orange", "jeija_lightstone_orange_off.png", "jeija_lightstone_orange_on.png", "Orange Lightstone")
-mesecon.lightstone_add("white", "dye:white", "jeija_lightstone_white_off.png", "jeija_lightstone_white_on.png", "White Lightstone")
-mesecon.lightstone_add("pink", "dye:pink", "jeija_lightstone_pink_off.png", "jeija_lightstone_pink_on.png", "Pink Lightstone")
-mesecon.lightstone_add("magenta", "dye:magenta", "jeija_lightstone_magenta_off.png", "jeija_lightstone_magenta_on.png", "Magenta Lightstone")
-mesecon.lightstone_add("cyan", "dye:cyan", "jeija_lightstone_cyan_off.png", "jeija_lightstone_cyan_on.png", "Cyan Lightstone")
-mesecon.lightstone_add("violet", "dye:violet", "jeija_lightstone_violet_off.png", "jeija_lightstone_violet_on.png", "Violet Lightstone")
+mesecon.lightstone_add("red", "mesecons_gamecompat:dye_red", "jeija_lightstone_red_off.png", "jeija_lightstone_red_on.png", "Red Lightstone")
+mesecon.lightstone_add("green", "mesecons_gamecompat:dye_green", "jeija_lightstone_green_off.png", "jeija_lightstone_green_on.png", "Green Lightstone")
+mesecon.lightstone_add("blue", "mesecons_gamecompat:dye_blue", "jeija_lightstone_blue_off.png", "jeija_lightstone_blue_on.png", "Blue Lightstone")
+mesecon.lightstone_add("gray", "mesecons_gamecompat:dye_grey", "jeija_lightstone_gray_off.png", "jeija_lightstone_gray_on.png", "Grey Lightstone")
+mesecon.lightstone_add("darkgray", "mesecons_gamecompat:dye_dark_grey", "jeija_lightstone_darkgray_off.png", "jeija_lightstone_darkgray_on.png", "Dark Grey Lightstone")
+mesecon.lightstone_add("yellow", "mesecons_gamecompat:dye_yellow", "jeija_lightstone_yellow_off.png", "jeija_lightstone_yellow_on.png", "Yellow Lightstone")
+mesecon.lightstone_add("orange", "mesecons_gamecompat:dye_orange", "jeija_lightstone_orange_off.png", "jeija_lightstone_orange_on.png", "Orange Lightstone")
+mesecon.lightstone_add("white", "mesecons_gamecompat:dye_white", "jeija_lightstone_white_off.png", "jeija_lightstone_white_on.png", "White Lightstone")
+mesecon.lightstone_add("pink", "mesecons_gamecompat:dye_pink", "jeija_lightstone_pink_off.png", "jeija_lightstone_pink_on.png", "Pink Lightstone")
+mesecon.lightstone_add("magenta", "mesecons_gamecompat:dye_magenta", "jeija_lightstone_magenta_off.png", "jeija_lightstone_magenta_on.png", "Magenta Lightstone")
+mesecon.lightstone_add("cyan", "mesecons_gamecompat:dye_cyan", "jeija_lightstone_cyan_off.png", "jeija_lightstone_cyan_on.png", "Cyan Lightstone")
+mesecon.lightstone_add("violet", "mesecons_gamecompat:dye_violet", "jeija_lightstone_violet_off.png", "jeija_lightstone_violet_on.png", "Violet Lightstone")

mesecons_lightstone/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_lightstone
-depends = mesecons, dye
+depends = mesecons, mesecons_gamecompat

mesecons_luacontroller/init.lua

@@ -43,13 +43,16 @@ local rules = {
 ------------------
 -- These helpers are required to set the port states of the luacontroller
 
+-- Updates the real port states according to the signal change.
+-- Returns whether the real port states actually changed.
 local function update_real_port_states(pos, rule_name, new_state)
 	local meta = minetest.get_meta(pos)
 	if rule_name == nil then
 		meta:set_int("real_portstates", 1)
-		return
+		return true
 	end
-	local n = meta:get_int("real_portstates") - 1
+	local real_portstates = meta:get_int("real_portstates")
+	local n = real_portstates - 1
 	local L = {}
 	for i = 1, 4 do
 		L[i] = n % 2
@@ -60,18 +63,18 @@ local function update_real_port_states(pos, rule_name, new_state)
 	if rule_name.x == nil then
 		for _, rname in ipairs(rule_name) do
 			local port = pos_to_side[rname.x + (2 * rname.z) + 3]
-			L[port] = (newstate == "on") and 1 or 0
+			L[port] = (new_state == "on") and 1 or 0
 		end
 	else
 		local port = pos_to_side[rule_name.x + (2 * rule_name.z) + 3]
 		L[port] = (new_state == "on") and 1 or 0
 	end
-	meta:set_int("real_portstates",
-		1 +
-		1 * L[1] +
-		2 * L[2] +
-		4 * L[3] +
-		8 * L[4])
+	local new_portstates = 1 + 1 * L[1] + 2 * L[2] + 4 * L[3] + 8 * L[4]
+	if new_portstates ~= real_portstates then
+		meta:set_int("real_portstates", new_portstates)
+		return true
+	end
+	return false
 end
 
 
@@ -172,7 +175,7 @@ local function burn_controller(pos)
 	minetest.after(0.2, mesecon.receptor_off, pos, mesecon.rules.flat)
 end
 
-local function overheat(pos, meta)
+local function overheat(pos)
 	if mesecon.do_overheat(pos) then -- If too hot
 		burn_controller(pos)
 		return true
@@ -467,7 +470,12 @@ local safe_globals = {
 
 local function create_environment(pos, mem, event, itbl, send_warning)
 	-- Gather variables for the environment
-	local vports = minetest.registered_nodes[minetest.get_node(pos).name].virtual_portstates
+	local node_def = minetest.registered_nodes[minetest.get_node(pos).name]
+	if not node_def then return end
+
+	local vports = node_def.virtual_portstates
+	if not vports then return end
+
 	local vports_copy = {}
 	for k, v in pairs(vports) do vports_copy[k] = v end
 	local rports = get_real_port_states(pos)
@@ -612,9 +620,8 @@ local function run_inner(pos, code, event)
 	if overheat(pos) then return true, "" end
 	if ignore_event(event, meta) then return true, "" end
 
-	-- Load code & mem from meta
+	-- Load mem from meta
 	local mem  = load_memory(meta)
-	local code = meta:get_string("code")
 
 	-- 'Last warning' label.
 	local warning = ""
@@ -625,16 +632,19 @@ local function run_inner(pos, code, event)
 	-- Create environment
 	local itbl = {}
 	local env = create_environment(pos, mem, event, itbl, send_warning)
+	if not env then return false, "Env does not exist. Controller has been moved?" end
 
+	local success, msg
 	-- Create the sandbox and execute code
-	local f, msg = create_sandbox(code, env)
+	local f
+	f, msg = create_sandbox(code, env)
 	if not f then return false, msg end
 	-- Start string true sandboxing
 	local onetruestring = getmetatable("")
 	-- If a string sandbox is already up yet inconsistent, something is very wrong
 	assert(onetruestring.__index == string)
 	onetruestring.__index = env.string
-	local success, msg = pcall(f)
+	success, msg = pcall(f)
 	onetruestring.__index = string
 	-- End string true sandboxing
 	if not success then return false, msg end
@@ -748,7 +758,7 @@ local selection_box = {
 local digiline = {
 	receptor = {},
 	effector = {
-		action = function(pos, node, channel, msg)
+		action = function(pos, _, channel, msg)
 			msg = clean_and_weigh_digiline_message(msg)
 			run(pos, {type = "digiline", channel = channel, msg = msg})
 		end
@@ -766,7 +776,7 @@ local function set_program(pos, code)
 	return run(pos, {type="program"})
 end
 
-local function on_receive_fields(pos, form_name, fields, sender)
+local function on_receive_fields(pos, _, fields, sender)
 	if not fields.program then
 		return
 	end
@@ -825,8 +835,9 @@ for d = 0, 1 do
 		effector = {
 			rules = input_rules[cid],
 			action_change = function (pos, _, rule_name, new_state)
-				update_real_port_states(pos, rule_name, new_state)
+				if update_real_port_states(pos, rule_name, new_state) then
 					run(pos, {type=new_state, pin=rule_name})
+				end
 			end,
 		},
 		receptor = {
@@ -860,7 +871,7 @@ for d = 0, 1 do
 		node_box = node_box,
 		on_construct = reset_meta,
 		on_receive_fields = on_receive_fields,
-		sounds = default.node_sound_stone_defaults(),
+		sounds = mesecon.node_sound.stone,
 		mesecons = mesecons,
 		digiline = digiline,
 		-- Virtual portstates are the ports that
@@ -871,7 +882,7 @@ for d = 0, 1 do
 			c = c == 1,
 			d = d == 1,
 		},
-		after_dig_node = function (pos, node)
+		after_dig_node = function (pos)
 			mesecon.do_cooldown(pos)
 			mesecon.receptor_off(pos, output_rules)
 		end,
@@ -909,7 +920,7 @@ minetest.register_node(BASENAME .. "_burnt", {
 	node_box = node_box,
 	on_construct = reset_meta,
 	on_receive_fields = on_receive_fields,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	virtual_portstates = {a = false, b = false, c = false, d = false},
 	mesecons = {
 		effector = {

mesecons_luacontroller/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_luacontroller
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_materials/init.lua

@@ -36,6 +36,6 @@ minetest.register_craft({
 	output = "mesecons_materials:silicon 4",
 	recipe = {
 		{"group:sand", "group:sand"},
-		{"group:sand", "default:steel_ingot"},
+		{"group:sand", "mesecons_gamecompat:steel_ingot"},
 	}
 })

mesecons_materials/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_materials
-depends = mesecons
+depends = mesecons_gamecompat

mesecons_microcontroller/init.lua

@@ -44,9 +44,10 @@ local mesecons = {effector =
 {
 	rules = input_rules,
 	action_change = function (pos, node, rulename, newstate)
-		yc.update_real_portstates(pos, node, rulename, newstate)
+		if yc.update_real_portstates(pos, node, rulename, newstate) then
 			yc.update(pos)
 		end
+	end
 }}
 if nodename ~= "mesecons_microcontroller:microcontroller0000" then
 	mesecons.receptor = {
@@ -102,7 +103,7 @@ minetest.register_node(nodename, {
 		for i=1, EEPROM_SIZE+1 do r=r.."0" end --Generate a string with EEPROM_SIZE*"0"
 		meta:set_string("eeprom", r)
 	end,
-	on_receive_fields = function(pos, formanme, fields, sender)
+	on_receive_fields = function(pos, _, fields, sender)
 		local player_name = sender:get_player_name()
 		if minetest.is_protected(pos, player_name) and
 				not minetest.check_player_privs(player_name, {protection_bypass=true}) then
@@ -139,7 +140,7 @@ minetest.register_node(nodename, {
 		yc.reset (pos)
 		yc.update(pos)
 	end,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	mesecons = mesecons,
 	after_dig_node = function (pos, node)
 		rules = microc_rules[node.name]
@@ -225,7 +226,6 @@ yc.parsecode = function(code, pos)
 	local Lreal = yc.get_real_portstates(pos)
 	local Lvirtual = yc.get_virtual_portstates(pos)
 	if Lvirtual == nil then return nil end
-	local c
 	local eeprom = meta:get_string("eeprom")
 	while true do
 		local command, params
@@ -251,9 +251,9 @@ yc.parsecode = function(code, pos)
 			if not params then return nil end
 		end
 		if command == "on" then
-			L = yc.command_on (params, Lvirtual)
+			Lvirtual = yc.command_on (params, Lvirtual)
 		elseif command == "off" then
-			L = yc.command_off(params, Lvirtual)
+			Lvirtual = yc.command_off(params, Lvirtual)
 		elseif command == "print" then
 			local su = yc.command_print(params, eeprom, yc.merge_portstates(Lreal, Lvirtual))
 			if su ~= true then return nil end
@@ -332,7 +332,8 @@ yc.parse_get_eeprom_param = function(cond, starti)
 	local addr
 	while s ~= "" do
 		s = string.sub(cond, i, i)
-		if string.find("0123456789", s) == nil or s == "" then
+		local b = s:byte()
+		if s == "" or 48 > b or b > 57 then
 			addr = string.sub(cond, starti, i-1) -- i: last number i+1 after last number
 			return addr, i
 		end
@@ -384,7 +385,6 @@ end
 
 --Commands
 yc.command_on = function(params, L)
-	local rules = {}
 	for i, port in ipairs(params) do
 		L = yc.set_portstate (port, true, L)
 	end
@@ -392,7 +392,6 @@ yc.command_on = function(params, L)
 end
 
 yc.command_off = function(params, L)
-	local rules = {}
 	for i, port in ipairs(params) do
 		L = yc.set_portstate (port, false, L)
 	end
@@ -405,7 +404,7 @@ yc.command_print = function(params, eeprom, L)
 		if param:sub(1,1) == '"' and param:sub(#param, #param) == '"' then
 			s = s..param:sub(2, #param-1)
 		else
-			r = yc.command_parsecondition(param, L, eeprom)
+			local r = yc.command_parsecondition(param, L, eeprom)
 			if r == "1" or r == "0" then
 				s = s..r
 			else return nil end
@@ -421,7 +420,9 @@ yc.command_sbi = function(params, eeprom, L, Lv)
 
 	if status == nil then return nil, nil end
 
-	if string.find("ABCD", params[1])~=nil and #params[1]==1 then --is a port
+	if #params[1]==1 then
+		local b = params[1]:byte()
+		if 65 <= b and b <= 68 then -- is a port
 			if status == "1" then
 				Lv = yc.set_portstate (params[1], true,  Lv)
 			else
@@ -429,6 +430,7 @@ yc.command_sbi = function(params, eeprom, L, Lv)
 			end
 			return eeprom, Lv;
 		end
+	end
 
 	--is an eeprom address
 	local new_eeprom = "";
@@ -469,8 +471,8 @@ yc.command_after_execute = function(params)
 		if yc.parsecode(params.code, params.pos) == nil then
 			meta:set_string("infotext", "Code in after() not valid!")
 		else
-			if code ~= nil then
-				meta:set_string("infotext", "Working Microcontroller\n"..code)
+			if params.code ~= nil then
+				meta:set_string("infotext", "Working Microcontroller\n"..params.code)
 			else
 				meta:set_string("infotext", "Working Microcontroller")
 			end
@@ -543,8 +545,8 @@ yc.command_parsecondition = function(cond, L, eeprom)
 	cond = string.gsub(cond, "!0", "1")
 	cond = string.gsub(cond, "!1", "0")
 
-	local i = 2
-	local l = string.len(cond)
+	i = 2
+	l = string.len(cond)
 	while i<=l do
 		local s = cond:sub(i,i)
 		local b = tonumber(cond:sub(i-1, i-1))
@@ -553,8 +555,7 @@ yc.command_parsecondition = function(cond, L, eeprom)
 		if s == "=" then
 			if a==nil then return nil end
 			if b==nil then return nil end
-			if a == b  then buf = "1" end
-			if a ~= b then buf = "0" end
+			local buf = a == b and "1" or "0"
 			cond = string.gsub(cond, b..s..a, buf)
 			i = 1
 			l = string.len(cond)
@@ -562,8 +563,8 @@ yc.command_parsecondition = function(cond, L, eeprom)
 		i = i + 1
 	end
 
-	local i = 2
-	local l = string.len(cond)
+	i = 2
+	l = string.len(cond)
 	while i<=l do
 		local s = cond:sub(i,i)
 		local b = tonumber(cond:sub(i-1, i-1))
@@ -659,13 +660,16 @@ yc.set_portstate = function(port, state, L)
 	return L
 end
 
-yc.update_real_portstates = function(pos, node, rulename, newstate)
+-- Updates the real port states according to the signal change.
+-- Returns whether the real port states actually changed.
+yc.update_real_portstates = function(pos, _, rulename, newstate)
 	local meta = minetest.get_meta(pos)
 	if rulename == nil then
 		meta:set_int("real_portstates", 1)
-		return
+		return true
 	end
-	local n = meta:get_int("real_portstates") - 1
+	local real_portstates = meta:get_int("real_portstates")
+	local n = real_portstates - 1
 	local L = {}
 	for i = 1, 4 do
 		L[i] = n%2
@@ -680,7 +684,12 @@ yc.update_real_portstates = function(pos, node, rulename, newstate)
 		local port = ({4, 1, nil, 3, 2})[rulename.x+2*rulename.z+3]
 		L[port] = (newstate == "on") and 1 or 0
 	end
-	meta:set_int("real_portstates", 1 + L[1] + 2*L[2] + 4*L[3] + 8*L[4])
+	local new_portstates = 1 + L[1] + 2*L[2] + 4*L[3] + 8*L[4]
+	if new_portstates ~= real_portstates then
+		meta:set_int("real_portstates", new_portstates)
+		return true
+	end
+	return false
 end
 
 yc.get_real_portstates = function(pos) -- determine if ports are powered (by itself or from outside)
@@ -696,7 +705,7 @@ end
 
 yc.get_virtual_portstates = function(pos) -- portstates according to the name
 	local name = minetest.get_node(pos).name
-	local b, a = string.find(name, ":microcontroller")
+	local _, a = string.find(name, ":microcontroller")
 	if a == nil then return nil end
 	a = a + 1
 

mesecons_microcontroller/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_microcontroller
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_movestones/init.lua

@@ -71,7 +71,7 @@ function mesecon.register_movestone(name, def, is_sticky, is_vertical)
 		-- ### Step 3: If sticky, pull stack behind ###
 		if is_sticky then
 			local backpos = vector.subtract(pos, direction)
-			success, stack, oldstack = mesecon.mvps_pull_all(backpos, direction, max_pull, owner)
+			local success, _, oldstack = mesecon.mvps_pull_all(backpos, direction, max_pull, owner)
 			if success then
 				mesecon.mvps_move_objects(backpos, vector.multiply(direction, -1), oldstack, -1)
 			end
@@ -94,7 +94,7 @@ function mesecon.register_movestone(name, def, is_sticky, is_vertical)
 
 	def.after_place_node = mesecon.mvps_set_owner
 
-	def.on_punch = function(pos, node, player)
+	def.on_punch = function(pos, _, player)
 		local player_name = player and player.get_player_name and player:get_player_name()
 		if mesecon.mvps_claim(pos, player_name) then
 			minetest.get_node_timer(pos):start(timer_interval)
@@ -102,7 +102,7 @@ function mesecon.register_movestone(name, def, is_sticky, is_vertical)
 		end
 	end
 
-	def.on_timer = function(pos, elapsed)
+	def.on_timer = function(pos)
 		local sourcepos = mesecon.is_powered(pos)
 		if not sourcepos then
 			return
@@ -129,7 +129,7 @@ mesecon.register_movestone("mesecons_movestones:movestone", {
 	},
 	groups = {cracky = 3},
     description = "Movestone",
-	sounds = default.node_sound_stone_defaults()
+	sounds = mesecon.node_sound.stone
 }, false, false)
 
 mesecon.register_movestone("mesecons_movestones:sticky_movestone", {
@@ -143,7 +143,7 @@ mesecon.register_movestone("mesecons_movestones:sticky_movestone", {
 	},
 	groups = {cracky = 3},
     description = "Sticky Movestone",
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 }, true, false)
 
 mesecon.register_movestone("mesecons_movestones:movestone_vertical", {
@@ -157,7 +157,7 @@ mesecon.register_movestone("mesecons_movestones:movestone_vertical", {
 	},
 	groups = {cracky = 3},
     description = "Vertical Movestone",
-	sounds = default.node_sound_stone_defaults()
+	sounds = mesecon.node_sound.stone
 }, false, true)
 
 mesecon.register_movestone("mesecons_movestones:sticky_movestone_vertical", {
@@ -171,7 +171,7 @@ mesecon.register_movestone("mesecons_movestones:sticky_movestone_vertical", {
 	},
 	groups = {cracky = 3},
     description = "Vertical Sticky Movestone",
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 }, true, true)
 
 
@@ -180,9 +180,9 @@ mesecon.register_movestone("mesecons_movestones:sticky_movestone_vertical", {
 minetest.register_craft({
 	output = "mesecons_movestones:movestone 2",
 	recipe = {
-		{"default:stone", "default:stone", "default:stone"},
+		{"mesecons_gamecompat:stone", "mesecons_gamecompat:stone", "mesecons_gamecompat:stone"},
 		{"group:mesecon_conductor_craftable", "group:mesecon_conductor_craftable", "group:mesecon_conductor_craftable"},
-		{"default:stone", "default:stone", "default:stone"},
+		{"mesecons_gamecompat:stone", "mesecons_gamecompat:stone", "mesecons_gamecompat:stone"},
 	}
 })
 

mesecons_movestones/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_movestones
-depends = mesecons, mesecons_materials, mesecons_mvps
+depends = mesecons, mesecons_gamecompat, mesecons_materials, mesecons_mvps

mesecons_mvps/init.lua

@@ -29,9 +29,6 @@ function mesecon.is_mvps_stopper(node, pushdir, stack, stackid)
 end
 
 function mesecon.register_mvps_stopper(nodename, get_stopper)
-	if minetest.registered_nodes[nodename] and minetest.registered_nodes[nodename].buildable_to then
-		minetest.log("warning", ("Registering a buildable-to node \"%s\" as a mesecon stopper, this is not supported"):format(nodename))
-	end
 	if get_stopper == nil then
 			get_stopper = true
 	end
@@ -49,11 +46,9 @@ local function on_mvps_move(moved_nodes)
 	end
 end
 
-function mesecon.mvps_process_stack(stack)
-	-- update mesecons for placed nodes ( has to be done after all nodes have been added )
-	for _, n in ipairs(stack) do
-		mesecon.on_placenode(n.pos, minetest.get_node(n.pos))
-	end
+function mesecon.mvps_process_stack()
+	-- This function is kept for compatibility.
+	-- It used to call on_placenode on moved nodes, but that is now done automatically.
 end
 
 -- tests if the node can be pushed into, e.g. air, water, grass
@@ -68,32 +63,31 @@ end
 function mesecon.mvps_get_stack(pos, dir, maximum, all_pull_sticky)
 	-- determine the number of nodes to be pushed
 	local nodes = {}
-	local frontiers = {pos}
+	local pos_set = {}
+	local frontiers = mesecon.fifo_queue.new()
+	frontiers:add(vector.new(pos))
 
-	while #frontiers > 0 do
-		local np = frontiers[1]
-		local nn = minetest.get_node(np)
-
-		-- Never push into unloaded blocks. Don’t try to pull from them, either.
-		-- TODO: load blocks instead, as with wires.
-		if nn.name == "ignore" then return nil end
-
-		if not node_replaceable(nn.name) then
+	for np in frontiers:iter() do
+		local np_hash = minetest.hash_node_position(np)
+		local nn = not pos_set[np_hash] and minetest.get_node(np)
+		if nn and not node_replaceable(nn.name) then
+			pos_set[np_hash] = true
 			table.insert(nodes, {node = nn, pos = np})
 			if #nodes > maximum then return nil end
 
-			-- add connected nodes to frontiers, connected is a vector list
-			-- the vectors must be absolute positions
-			local connected = {}
+			-- add connected nodes to frontiers
 			if minetest.registered_nodes[nn.name]
 			and minetest.registered_nodes[nn.name].mvps_sticky then
-				connected = minetest.registered_nodes[nn.name].mvps_sticky(np, nn)
+				local connected = minetest.registered_nodes[nn.name].mvps_sticky(np, nn)
+				for _, cp in ipairs(connected) do
+					frontiers:add(cp)
+				end
 			end
 
-			table.insert(connected, vector.add(np, dir))
+			frontiers:add(vector.add(np, dir))
 
 			-- If adjacent node is sticky block and connects add that
-			-- position to the connected table
+			-- position
 			for _, r in ipairs(mesecon.rules.alldirs) do
 				local adjpos = vector.add(np, r)
 				local adjnode = minetest.get_node(adjpos)
@@ -105,36 +99,16 @@ function mesecon.mvps_get_stack(pos, dir, maximum, all_pull_sticky)
 					-- connects to this position?
 					for _, link in ipairs(sticksto) do
 						if vector.equals(link, np) then
-							table.insert(connected, adjpos)
+							frontiers:add(adjpos)
 						end
 					end
 				end
 			end
 
 			if all_pull_sticky then
-				table.insert(connected, vector.subtract(np, dir))
-			end
-
-			-- Make sure there are no duplicates in frontiers / nodes before
-			-- adding nodes in "connected" to frontiers
-			for _, cp in ipairs(connected) do
-				local duplicate = false
-				for _, rp in ipairs(nodes) do
-					if vector.equals(cp, rp.pos) then
-						duplicate = true
+				frontiers:add(vector.subtract(np, dir))
 			end
 		end
-				for _, fp in ipairs(frontiers) do
-					if vector.equals(cp, fp) then
-						duplicate = true
-					end
-				end
-				if not duplicate then
-					table.insert(frontiers, cp)
-				end
-			end
-		end
-		table.remove(frontiers, 1)
 	end
 
 	return nodes
@@ -246,6 +220,8 @@ function mesecon.mvps_push_or_pull(pos, stackdir, movedir, maximum, all_pull_sti
 		minetest.remove_node(n.pos)
 	end
 
+	local oldstack = mesecon.tablecopy(nodes)
+
 	-- update mesecons for removed nodes ( has to be done after all nodes have been removed )
 	for _, n in ipairs(nodes) do
 		mesecon.on_dignode(n.pos, n.node)
@@ -255,6 +231,12 @@ function mesecon.mvps_push_or_pull(pos, stackdir, movedir, maximum, all_pull_sti
 	for _, n in ipairs(nodes) do
 		local np = vector.add(n.pos, movedir)
 
+		-- Turn off conductors in transit
+		local conductor = mesecon.get_conductor(n.node.name)
+		if conductor and conductor.state ~= mesecon.state.off then
+			n.node.name = conductor.offstate or conductor.states[1]
+		end
+
 		minetest.set_node(np, n.node)
 		minetest.get_meta(np):from_table(n.meta)
 		if n.node_timer then
@@ -263,7 +245,6 @@ function mesecon.mvps_push_or_pull(pos, stackdir, movedir, maximum, all_pull_sti
 	end
 
 	local moved_nodes = {}
-	local oldstack = mesecon.tablecopy(nodes)
 	for i in ipairs(nodes) do
 		moved_nodes[i] = {}
 		moved_nodes[i].oldpos = nodes[i].pos
@@ -280,7 +261,6 @@ function mesecon.mvps_push_or_pull(pos, stackdir, movedir, maximum, all_pull_sti
 end
 
 function mesecon.mvps_move_objects(pos, dir, nodestack, movefactor)
-	local objects_to_move = {}
 	local dir_k
 	local dir_l
 	for k, v in pairs(dir) do
@@ -334,11 +314,10 @@ function mesecon.mvps_move_objects(pos, dir, nodestack, movefactor)
 	end
 end
 
-mesecon.register_mvps_stopper("doors:door_steel_b_1")
-mesecon.register_mvps_stopper("doors:door_steel_t_1")
-mesecon.register_mvps_stopper("doors:door_steel_b_2")
-mesecon.register_mvps_stopper("doors:door_steel_t_2")
-mesecon.register_mvps_stopper("default:chest_locked")
+-- Never push into unloaded blocks. Don’t try to pull from them, either.
+-- TODO: load blocks instead, as with wires.
+mesecon.register_mvps_stopper("ignore")
+
 mesecon.register_on_mvps_move(mesecon.move_hot_nodes)
 mesecon.register_on_mvps_move(function(moved_nodes)
 	for i = 1, #moved_nodes do

mesecons_noteblock/init.lua

@@ -3,12 +3,16 @@ minetest.register_node("mesecons_noteblock:noteblock", {
 	tiles = {"mesecons_noteblock.png"},
 	is_ground_content = false,
 	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2},
-	on_punch = function(pos, node) -- change sound when punched
+	on_punch = function(pos, node, puncher) -- change sound when punched
+		if minetest.is_protected(pos, puncher and puncher:get_player_name() or "") then
+			return
+		end
+
 		node.param2 = (node.param2+1)%12
 		mesecon.noteblock_play(pos, node.param2)
 		minetest.set_node(pos, node)
 	end,
-	sounds = default.node_sound_wood_defaults(),
+	sounds = mesecon.node_sound.wood,
 	mesecons = {effector = { -- play sound when activated
 		action_on = function(pos, node)
 			mesecon.noteblock_play(pos, node.param2)
@@ -21,7 +25,7 @@ minetest.register_craft({
 	output = "mesecons_noteblock:noteblock 1",
 	recipe = {
 		{"group:wood", "group:wood", "group:wood"},
-		{"group:mesecon_conductor_craftable", "default:steel_ingot", "group:mesecon_conductor_craftable"},
+		{"group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable"},
 		{"group:wood", "group:wood", "group:wood"},
 	}
 })
@@ -42,14 +46,20 @@ local soundnames = {
 	"mesecons_noteblock_c"
 }
 
-local node_sounds = {
-	["default:lava_source"] = "fire_fire",
-	["default:chest"] = "mesecons_noteblock_snare",
-	["default:chest_locked"] = "mesecons_noteblock_snare",
-	["default:coalblock"] = "tnt_explode",
-	["default:glass"] = "mesecons_noteblock_hihat",
-	["default:obsidian_glass"] = "mesecons_noteblock_hihat",
-}
+local node_sounds = {}
+for alias, sound in pairs({
+	["mesecons_gamecompat:lava_source"] = mesecon.sound_name.fire,
+	["mesecons_gamecompat:chest"] = "mesecons_noteblock_snare",
+	["mesecons_gamecompat:chest_locked"] = "mesecons_noteblock_snare",
+	["mesecons_gamecompat:coalblock"] = mesecon.sound_name.explode,
+	["mesecons_gamecompat:glass"] = "mesecons_noteblock_hihat",
+	["mesecons_gamecompat:obsidian_glass"] = "mesecons_noteblock_hihat",
+}) do
+	local nodename = minetest.registered_aliases[alias]
+	if nodename then
+		node_sounds[nodename] = sound
+	end
+end
 
 local node_sounds_group = {
 	["stone"] = "mesecons_noteblock_kick",
@@ -57,6 +67,7 @@ local node_sounds_group = {
 	["wood"] = "mesecons_noteblock_litecrash",
 }
 
+local steelblock_nodename = minetest.registered_aliases["mesecons_gamecompat:steelblock"]
 mesecon.noteblock_play = function(pos, param2)
 	pos.y = pos.y-1
 	local nodeunder = minetest.get_node(pos).name
@@ -76,7 +87,7 @@ mesecon.noteblock_play = function(pos, param2)
 			minetest.log("error", "[mesecons_noteblock] No soundname found, test param2")
 			return
 		end
-		if nodeunder == "default:steelblock" then
+		if nodeunder == steelblock_nodename then
 			soundname = soundname.. 2
 		end
 	end

mesecons_noteblock/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_noteblock
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_pistons/init.lua

@@ -93,7 +93,6 @@ local piston_on = function(pos, node)
 	minetest.swap_node(pos, {param2 = node.param2, name = pistonspec.onname})
 	minetest.set_node(pusher_pos, {param2 = node.param2, name = pistonspec.pusher})
 	minetest.sound_play("piston_extend", { pos = pos, max_hear_distance = 20, gain = 0.3 }, true)
-	mesecon.mvps_process_stack(stack)
 	mesecon.mvps_move_objects(pusher_pos, dir, oldstack)
 end
 
@@ -108,7 +107,7 @@ local function piston_off(pos, node)
 	local dir = minetest.facedir_to_dir(node.param2)
 	local pullpos = vector.add(pos, vector.multiply(dir, -2))
 	local meta = minetest.get_meta(pos)
-	local success, stack, oldstack = mesecon.mvps_pull_single(pullpos, dir, max_pull, meta:get_string("owner"))
+	local success, _, oldstack = mesecon.mvps_pull_single(pullpos, dir, max_pull, meta:get_string("owner"))
 	if success then
 		mesecon.mvps_move_objects(pullpos, vector.multiply(dir, -1), oldstack, -1)
 	end
@@ -235,7 +234,7 @@ local function piston_rotate_pusher(pos, node, player, mode)
 	return piston_rotate_on(piston_pos, piston_node, player, mode)
 end
 
-local function piston_punch(pos, node, player)
+local function piston_punch(pos, _, player)
 	local player_name = player and player.get_player_name and player:get_player_name()
 	if mesecon.mvps_claim(pos, player_name) then
 		minetest.chat_send_player(player_name, "Reclaimed piston")
@@ -279,7 +278,7 @@ minetest.register_node("mesecons_pistons:piston_normal_off", {
 	paramtype2 = "facedir",
 	is_ground_content = false,
 	after_place_node = piston_orientate,
-	sounds = default.node_sound_wood_defaults(),
+	sounds = mesecon.node_sound.wood,
 	mesecons = {effector={
 		action_on = piston_on,
 		rules = piston_get_rules,
@@ -309,7 +308,7 @@ minetest.register_node("mesecons_pistons:piston_normal_on", {
 	after_dig_node = piston_after_dig,
 	node_box = piston_on_box,
 	selection_box = piston_on_box,
-	sounds = default.node_sound_wood_defaults(),
+	sounds = mesecon.node_sound.wood,
 	mesecons = {effector={
 		action_off = piston_off,
 		rules = piston_get_rules,
@@ -339,7 +338,7 @@ minetest.register_node("mesecons_pistons:piston_pusher_normal", {
 	node_box = piston_pusher_box,
 	on_rotate = piston_rotate_pusher,
 	drop = "",
-	sounds = default.node_sound_wood_defaults(),
+	sounds = mesecon.node_sound.wood,
 })
 
 -- Sticky ones
@@ -358,7 +357,7 @@ minetest.register_node("mesecons_pistons:piston_sticky_off", {
 	paramtype2 = "facedir",
 	is_ground_content = false,
 	after_place_node = piston_orientate,
-	sounds = default.node_sound_wood_defaults(),
+	sounds = mesecon.node_sound.wood,
 	mesecons = {effector={
 		action_on = piston_on,
 		rules = piston_get_rules,
@@ -388,7 +387,7 @@ minetest.register_node("mesecons_pistons:piston_sticky_on", {
 	after_dig_node = piston_after_dig,
 	node_box = piston_on_box,
 	selection_box = piston_on_box,
-	sounds = default.node_sound_wood_defaults(),
+	sounds = mesecon.node_sound.wood,
 	mesecons = {effector={
 		action_off = piston_off,
 		rules = piston_get_rules,
@@ -418,12 +417,12 @@ minetest.register_node("mesecons_pistons:piston_pusher_sticky", {
 	node_box = piston_pusher_box,
 	on_rotate = piston_rotate_pusher,
 	drop = "",
-	sounds = default.node_sound_wood_defaults(),
+	sounds = mesecon.node_sound.wood,
 })
 
 
 -- Register pushers as stoppers if they would be seperated from the piston
-local function piston_pusher_get_stopper(node, dir, stack, stackid)
+local function piston_pusher_get_stopper(node, _, stack, stackid)
 	if (stack[stackid + 1]
 	and stack[stackid + 1].node.name   == get_pistonspec(node.name, "pusher").onname
 	and stack[stackid + 1].node.param2 == node.param2)
@@ -435,32 +434,12 @@ local function piston_pusher_get_stopper(node, dir, stack, stackid)
 	return true
 end
 
-local function piston_pusher_up_down_get_stopper(node, dir, stack, stackid)
-	if (stack[stackid + 1]
-	and stack[stackid + 1].node.name   == get_pistonspec(node.name, "pusher").onname)
-	or (stack[stackid - 1]
-	and stack[stackid - 1].node.name   == get_pistonspec(node.name, "pusher").onname) then
-		return false
-	end
-	return true
-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)
 
 
 -- 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   == get_pistonspec(node.name, "onname").pusher)
-	or (stack[stackid - 1]
-	and stack[stackid - 1].node.name   == get_pistonspec(node.name, "onname").pusher) then
-		return false
-	end
-	return true
-end
-
-local function piston_get_stopper(node, dir, stack, stackid)
+local function piston_get_stopper(node, _, stack, stackid)
 	local pistonspec = get_pistonspec(node.name, "onname")
 	local dir = vector.multiply(minetest.facedir_to_dir(node.param2), -1)
 	local pusherpos = vector.add(stack[stackid].pos, dir)
@@ -485,8 +464,8 @@ minetest.register_craft({
 	output = "mesecons_pistons:piston_normal_off 2",
 	recipe = {
 		{"group:wood",             "group:wood",                        "group:wood"},
-		{"default:cobble", "default:steel_ingot",               "default:cobble"},
-		{"default:cobble", "group:mesecon_conductor_craftable", "default:cobble"},
+		{"mesecons_gamecompat:cobble", "mesecons_gamecompat:steel_ingot",       "mesecons_gamecompat:cobble"},
+		{"mesecons_gamecompat:cobble", "group:mesecon_conductor_craftable", "mesecons_gamecompat:cobble"},
 	}
 })
 
@@ -500,4 +479,4 @@ minetest.register_craft({
 
 
 -- load legacy code
-dofile(minetest.get_modpath("mesecons_pistons")..DIR_DELIM.."legacy.lua")
+dofile(minetest.get_modpath("mesecons_pistons").."/legacy.lua")

mesecons_pistons/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_pistons
-depends = mesecons, mesecons_mvps
+depends = mesecons, mesecons_gamecompat, mesecons_mvps

mesecons_powerplant/init.lua

@@ -16,7 +16,7 @@ minetest.register_node("mesecons_powerplant:power_plant", {
 		type = "fixed",
 		fixed = {-0.3, -0.5, -0.3, 0.3, -0.5+0.7, 0.3},
 	},
-	sounds = default.node_sound_leaves_defaults(),
+	sounds = mesecon.node_sound.leaves,
 	mesecons = {receptor = {
 		state = mesecon.state.on
 	}},

mesecons_powerplant/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_powerplant
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_pressureplates/init.lua

@@ -8,7 +8,7 @@ local pp_box_on = {
 	fixed = { -7/16, -8/16, -7/16, 7/16, -7.5/16, 7/16 },
 }
 
-local function pp_on_timer(pos, elapsed)
+local function pp_on_timer(pos)
 	local node = minetest.get_node(pos)
 	local basename = minetest.registered_nodes[node.name].pressureplate_basename
 
@@ -17,7 +17,6 @@ local function pp_on_timer(pos, elapsed)
 	if not basename then return end
 
 	local objs   = minetest.get_objects_inside_radius(pos, 1)
-	local two_below = vector.add(pos, vector.new(0, -2, 0))
 
 	if objs[1] == nil and node.name == basename .. "_on" then
 		minetest.set_node(pos, {name = basename .. "_off"})
@@ -46,7 +45,6 @@ end
 -- sounds:	sound table
 
 function mesecon.register_pressure_plate(basename, description, textures_off, textures_on, image_w, image_i, recipe, groups, sounds)
-	local groups_off, groups_on
 	if not groups then
 		groups = {}
 	end
@@ -96,7 +94,7 @@ mesecon.register_pressure_plate(
 	"jeija_pressure_plate_wood_inv.png",
 	{{"group:wood", "group:wood"}},
 	{ choppy = 3, oddly_breakable_by_hand = 3 },
-	default.node_sound_wood_defaults())
+	mesecon.node_sound.wood)
 
 mesecon.register_pressure_plate(
 	"mesecons_pressureplates:pressure_plate_stone",
@@ -105,6 +103,6 @@ mesecon.register_pressure_plate(
 	{"jeija_pressure_plate_stone_on.png","jeija_pressure_plate_stone_on.png","jeija_pressure_plate_stone_on_edges.png"},
 	"jeija_pressure_plate_stone_wield.png",
 	"jeija_pressure_plate_stone_inv.png",
-	{{"default:cobble", "default:cobble"}},
+	{{"mesecons_gamecompat:cobble", "mesecons_gamecompat:cobble"}},
 	{ cracky = 3, oddly_breakable_by_hand = 3 },
-	default.node_sound_stone_defaults())
+	mesecon.node_sound.stone)

mesecons_pressureplates/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_pressureplates
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_random/init.lua

@@ -6,7 +6,7 @@ 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(),
+	sounds = mesecon.node_sound.stone,
 	mesecons = {effector = {
 		action_on = function (pos, node)
 			minetest.remove_node(pos)
@@ -20,9 +20,9 @@ minetest.register_node("mesecons_random:removestone", {
 minetest.register_craft({
 	output = 'mesecons_random:removestone 4',
 	recipe = {
-		{"", "default:cobble", ""},
-		{"default:cobble", "group:mesecon_conductor_craftable", "default:cobble"},
-		{"", "default:cobble", ""},
+		{"", "mesecons_gamecompat:cobble", ""},
+		{"mesecons_gamecompat:cobble", "group:mesecon_conductor_craftable", "mesecons_gamecompat:cobble"},
+		{"", "mesecons_gamecompat:cobble", ""},
 	}
 })
 
@@ -34,7 +34,7 @@ minetest.register_node("mesecons_random:ghoststone", {
 	is_ground_content = false,
 	inventory_image = minetest.inventorycube("jeija_ghoststone_inv.png"),
 	groups = {cracky=3},
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	mesecons = {conductor = {
 		state = mesecon.state.off,
 		rules = mesecon.rules.alldirs,
@@ -59,7 +59,7 @@ minetest.register_node("mesecons_random:ghoststone_active", {
 	}},
 	on_construct = function(pos)
 		-- remove shadow
-		shadowpos = vector.add(pos, vector.new(0, 1, 0))
+		local shadowpos = vector.add(pos, vector.new(0, 1, 0))
 		if (minetest.get_node(shadowpos).name == "air") then
 			minetest.dig_node(shadowpos)
 		end
@@ -71,8 +71,8 @@ minetest.register_node("mesecons_random:ghoststone_active", {
 minetest.register_craft({
 	output = 'mesecons_random:ghoststone 4',
 	recipe = {
-		{"default:steel_ingot", "default:cobble", "default:steel_ingot"},
-		{"default:cobble", "group:mesecon_conductor_craftable", "default:cobble"},
-		{"default:steel_ingot", "default:cobble", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:cobble", "mesecons_gamecompat:steel_ingot"},
+		{"mesecons_gamecompat:cobble", "group:mesecon_conductor_craftable", "mesecons_gamecompat:cobble"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:cobble", "mesecons_gamecompat:steel_ingot"},
 	}
 })

mesecons_random/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_random
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_receiver/init.lua

@@ -25,18 +25,10 @@ local up_rcvboxes = {
 	{6/16,  -8/16, 1/16,  8/16, -7/16, -1/16}, -- Plate extension (East)
 }
 
-local receiver_get_rules = function (node)
-	local rules = {	{x =  1, y = 0, z = 0},
-			{x = -2, y = 0, z = 0}}
-	if node.param2 == 2 then
-		rules = mesecon.rotate_rules_left(rules)
-	elseif node.param2 == 3 then
-		rules = mesecon.rotate_rules_right(mesecon.rotate_rules_right(rules))
-	elseif node.param2 == 0 then
-		rules = mesecon.rotate_rules_right(rules)
-	end
-	return rules
-end
+local receiver_get_rules = mesecon.horiz_rules_getter({
+	{x = 0, y = 0, z = 1},
+	{x = 0, y = 0, z = -2},
+})
 
 mesecon.register_node("mesecons_receiver:receiver", {
 	drawtype = "nodebox",
@@ -56,7 +48,7 @@ mesecon.register_node("mesecons_receiver:receiver", {
 	},
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
 	drop = "mesecons:wire_00000000_off",
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 }, {
 	tiles = {
 		"receiver_top_off.png",
@@ -105,7 +97,7 @@ mesecon.register_node("mesecons_receiver:receiver_up", {
 	},
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
 	drop = "mesecons:wire_00000000_off",
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 }, {
 	tiles = {"mesecons_wire_off.png"},
 	mesecons = {conductor = {
@@ -150,7 +142,7 @@ mesecon.register_node("mesecons_receiver:receiver_down", {
 	},
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
 	drop = "mesecons:wire_00000000_off",
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 }, {
 	tiles = {"mesecons_wire_off.png"},
 	mesecons = {conductor = {
@@ -209,8 +201,10 @@ function mesecon.receiver_place(rcpt_pos)
 	local param2 = minetest.dir_to_facedir(minetest.facedir_to_dir(node.param2))
 
 	if string.find(nn.name, "mesecons:wire_") ~= nil then
-		minetest.set_node(pos, {name = rcvtype, param2 = param2})
-		mesecon.on_placenode(pos, nn)
+		local rcv_node = {name = rcvtype, param2 = param2}
+		minetest.set_node(pos, rcv_node)
+		mesecon.on_dignode(pos, nn)
+		mesecon.on_placenode(pos, rcv_node)
 	end
 end
 
@@ -220,6 +214,7 @@ function mesecon.receiver_remove(rcpt_pos, dugnode)
 	if string.find(nn.name, "mesecons_receiver:receiver_") ~= nil then
 		local node = {name = "mesecons:wire_00000000_off"}
 		minetest.set_node(pos, node)
+		mesecon.on_dignode(pos, nn)
 		mesecon.on_placenode(pos, node)
 	end
 end
@@ -257,7 +252,13 @@ minetest.register_on_placenode(function (pos, node)
 	end
 end)
 
-function mesecon.buttonlike_onrotate(pos, node)
-	minetest.after(0, mesecon.receiver_remove, pos, node)
-	minetest.after(0, mesecon.receiver_place, pos)
+function mesecon.buttonlike_onrotate(pos, node, _, _, new_param2)
+	local new_node = {name = node.name, param1 = node.param1, param2 = new_param2}
+	minetest.swap_node(pos, new_node)
+	mesecon.receiver_remove(pos, node)
+	mesecon.on_dignode(pos, node)
+	mesecon.on_placenode(pos, new_node)
+	mesecon.receiver_place(pos)
+	minetest.check_for_falling(pos)
+	return true
 end

mesecons_receiver/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_receiver
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_solarpanel/init.lua

@@ -15,7 +15,7 @@ mesecon.register_node("mesecons_solarpanel:solar_panel", {
 		wall_top    = {-7/16,  7/16, -7/16,  7/16,  8/16, 7/16},
 		wall_side   = {-8/16, -7/16, -7/16, -7/16,  7/16, 7/16},
 	},
-	sounds = default.node_sound_glass_defaults(),
+	sounds = mesecon.node_sound.glass,
 	on_blast = mesecon.on_blastnode,
 },{
 	groups = {dig_immediate = 3},

mesecons_solarpanel/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_solarpanel
-depends = mesecons, mesecons_materials
+depends = mesecons, mesecons_gamecompat, mesecons_materials

mesecons_stickyblocks/init.lua

@@ -8,12 +8,12 @@ minetest.register_node("mesecons_stickyblocks:sticky_block_all", {
 	tiles = {"mesecons_stickyblocks_sticky.png"},
 	is_ground_content = false,
 	groups = {choppy=3, oddly_breakable_by_hand=2},
-	mvps_sticky = function (pos, node)
+	mvps_sticky = function (pos)
 		local connected = {}
 		for _, r in ipairs(mesecon.rules.alldirs) do
 			table.insert(connected, vector.add(pos, r))
 		end
 		return connected
 	end,
-	sounds = default.node_sound_wood_defaults(),
+	sounds = mesecon.node_sound.wood,
 })

mesecons_stickyblocks/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_stickyblocks
-depends = mesecons, mesecons_mvps
+depends = mesecons, mesecons_gamecompat, mesecons_mvps

mesecons_switch/init.lua

@@ -4,7 +4,7 @@ mesecon.register_node("mesecons_switch:mesecon_switch", {
 	paramtype2="facedir",
 	description="Switch",
 	is_ground_content = false,
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	on_rightclick = function (pos, node)
 		if(mesecon.flipstate(pos, node) == "on") then
 			mesecon.receptor_on(pos)
@@ -30,7 +30,7 @@ mesecon.register_node("mesecons_switch:mesecon_switch", {
 minetest.register_craft({
 	output = "mesecons_switch:mesecon_switch_off 2",
 	recipe = {
-		{"default:steel_ingot", "default:cobble", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:cobble", "mesecons_gamecompat:steel_ingot"},
 		{"group:mesecon_conductor_craftable","", "group:mesecon_conductor_craftable"},
 	}
 })

mesecons_switch/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_switch
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_torch/init.lua

@@ -27,9 +27,13 @@ local torch_get_output_rules = function(node)
 	return rotate_torch_rules(rules, node.param2)
 end
 
+local torch_input_rules_unrotated_horizontal = {vector.new(-2, 0, 0), vector.new(-1, 1, 0)}
+local torch_input_rules_unrotated_vertical   = {vector.new(-2, 0, 0)}
+
 local torch_get_input_rules = function(node)
-	local rules = 	{{x = -2, y = 0, z = 0},
-				 {x = -1, y = 1, z = 0}}
+	local rules = (node.param2 == 0 or node.param2 == 1)
+		and torch_input_rules_unrotated_vertical
+		or  torch_input_rules_unrotated_horizontal
 
 	return rotate_torch_rules(rules, node.param2)
 end
@@ -38,7 +42,7 @@ minetest.register_craft({
 	output = "mesecons_torch:mesecon_torch_on 4",
 	recipe = {
 	{"group:mesecon_conductor_craftable"},
-	{"default:stick"},}
+	{"group:stick"},}
 })
 
 local torch_selectionbox =
@@ -60,7 +64,7 @@ minetest.register_node("mesecons_torch:mesecon_torch_off", {
 	selection_box = torch_selectionbox,
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
 	drop = "mesecons_torch:mesecon_torch_on",
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {receptor = {
 		state = mesecon.state.off,
 		rules = torch_get_output_rules
@@ -82,7 +86,7 @@ minetest.register_node("mesecons_torch:mesecon_torch_on", {
 	groups = {dig_immediate=3},
 	light_source = minetest.LIGHT_MAX-5,
 	description="Mesecon Torch",
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {receptor = {
 		state = mesecon.state.on,
 		rules = torch_get_output_rules

mesecons_torch/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_torch
-depends = mesecons
+depends = mesecons, mesecons_gamecompat

mesecons_walllever/init.lua

@@ -15,7 +15,7 @@ mesecon.register_node("mesecons_walllever:wall_lever", {
 		type = "fixed",
 		fixed = { -8/16, -8/16, 3/16, 8/16, 8/16, 8/16 },
 	},
-	sounds = default.node_sound_wood_defaults(),
+	sounds = mesecon.node_sound.wood,
 	on_rightclick = function (pos, node)
 		if(mesecon.flipstate(pos, node) == "on") then
 			mesecon.receptor_on(pos, mesecon.rules.buttonlike_get(node))
@@ -58,7 +58,7 @@ minetest.register_craft({
 	output = "mesecons_walllever:wall_lever_off 2",
 	recipe = {
 	    {"group:mesecon_conductor_craftable"},
-		{"default:stone"},
-		{"default:stick"},
+		{"mesecons_gamecompat:stone"},
+		{"group:stick"},
 	}
 })

mesecons_walllever/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_walllever
-depends = mesecons, mesecons_receiver
+depends = mesecons, mesecons_gamecompat, mesecons_receiver

mesecons_wires/init.lua

@@ -14,7 +14,7 @@ local wire_getconnect = function (from_pos, self_pos)
 	if minetest.registered_nodes[node.name]
 	and minetest.registered_nodes[node.name].mesecons then
 		-- rules of node to possibly connect to
-		local rules = {}
+		local rules
 		if (minetest.registered_nodes[node.name].mesecon_wire) then
 			rules = mesecon.rules.default
 		else
@@ -73,7 +73,7 @@ local update_on_place_dig = function (pos, node)
 	end
 
 	-- Update nodes around it
-	local rules = {}
+	local rules
 	if minetest.registered_nodes[node.name]
 	and minetest.registered_nodes[node.name].mesecon_wire then
 		rules = mesecon.rules.default
@@ -195,10 +195,11 @@ local function register_wires()
 		}}
 
 		local groups_on = {dig_immediate = 3, mesecon_conductor_craftable = 1,
-			not_in_creative_inventory = 1}
+			not_in_creative_inventory = 1, not_in_craft_guide = 1}
 		local groups_off = {dig_immediate = 3, mesecon_conductor_craftable = 1}
 		if nodeid ~= "00000000" then
 			groups_off["not_in_creative_inventory"] = 1
+			groups_off["not_in_craft_guide"] = 1
 		end
 
 		mesecon.register_node(":mesecons:wire_"..nodeid, {
@@ -215,7 +216,7 @@ local function register_wires()
 			walkable = false,
 			drop = "mesecons:wire_00000000_off",
 			mesecon_wire = true,
-			sounds = default.node_sound_defaults(),
+			sounds = mesecon.node_sound.default,
 			on_rotate = false,
 		}, {tiles = tiles_off, mesecons = meseconspec_off, groups = groups_off},
 		{tiles = tiles_on, mesecons = meseconspec_on, groups = groups_on})
@@ -228,23 +229,31 @@ register_wires()
 -- ##############
 -- ## Crafting ##
 -- ##############
-minetest.register_craft({
+-- (Resolve aliases to avoid bug with cooking/fuel recipes.)
+
+if minetest.registered_aliases["mesecons_gamecompat:mese_crystal_fragment"] then
+	minetest.register_craft({
 		type = "cooking",
 		output = "mesecons:wire_00000000_off 2",
-	recipe = "default:mese_crystal_fragment",
+		recipe = minetest.registered_aliases["mesecons_gamecompat:mese_crystal_fragment"],
 		cooktime = 3,
-})
+	})
+end
 
-minetest.register_craft({
+if minetest.registered_aliases["mesecons_gamecompat:mese_crystal"] then
+	minetest.register_craft({
 		type = "cooking",
 		output = "mesecons:wire_00000000_off 18",
-	recipe = "default:mese_crystal",
+		recipe = minetest.registered_aliases["mesecons_gamecompat:mese_crystal"],
 		cooktime = 15,
-})
+	})
+end
 
-minetest.register_craft({
+if minetest.registered_aliases["mesecons_gamecompat:mese"] then
+	minetest.register_craft({
 		type = "cooking",
 		output = "mesecons:wire_00000000_off 162",
-	recipe = "default:mese",
+		recipe = minetest.registered_aliases["mesecons_gamecompat:mese"],
 		cooktime = 30,
-})
+	})
+end

mesecons_wires/mod.conf

@@ -1,2 +1,2 @@
 name = mesecons_wires
-depends = mesecons
+depends = mesecons, mesecons_gamecompat