Use table.copy in mesecons.tablecopy

mesecons.tablecopy didn’t support recursive tables, while Minetest table.copy works well for them.

README.md

@@ -22,9 +22,9 @@ OK, I want in.
 --------------
 Go get it!
 
-[DOWNLOAD IT NOW](https://github.com/Jeija/minetest-mod-mesecons/archive/master.zip)
+[DOWNLOAD IT NOW](https://github.com/minetest-mods/mesecons/archive/master.zip)
 
-Now go ahead and install it like any other Minetest mod. Don't know how? Check out [the wonderful page about it](http://wiki.minetest.com/wiki/Mods) over at the Minetest Wiki. For your convenience, here's a quick summary:
+Now go ahead and install it like any other Minetest mod. Don't know how? Check out [the wonderful page about it](https://wiki.minetest.net/Mods) over at the official Minetest Wiki. For your convenience, here's a quick summary:
 
 1. If Mesecons is still in a ZIP file, extract the folder inside to somewhere on the computer.
 2. Make sure that when you open the folder, you can directly find `README.md` in the listing. If you just see another folder, move that folder up one level and delete the old one.
@@ -43,9 +43,11 @@ Or maybe a [comprehensive reference](http://mesecons.net/items.html) is your sty
 
 An overview for the very newest of new beginners? How does [this one](http://uberi.mesecons.net/projects/MeseconsBasics/index.html) look?
 
+There is also a [wiki page](https://wiki.minetest.net/Mods/Mesecons) dedicated to this mod.
+
 Want to get more into building? Why not check out the [Mesecons Laboratory](http://uberi.mesecons.net/), a website dedicated to advanced Mesecons builders?
 
-Want to contribute to Mesecons itself? Check out the [source code](https://github.com/Jeija/minetest-mod-mesecons)!
+Want to contribute to Mesecons itself? Check out the [source code](https://github.com/minetest-mods/mesecons)!
 
 Who wrote it anyways?
 ---------------------
@@ -53,6 +55,7 @@ These awesome people made Mesecons possible!
 
 | Contributor     | Contribution                     |
 | --------------- | -------------------------------- |
+| Hawk777         | Code for VoxelManip caching      |
 | Jat15           | Various tweaks.                  |
 | Jeija           | **Main developer! Everything.**  |
 | Jordach         | Noteblock sounds.                |

bower.json

@@ -0,0 +1,12 @@
+{
+    "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+",
+    "keywords": [
+        "mesecons",
+        "minetest",
+        "mod"
+    ]
+}

documentation.json

@@ -1,6 +1,6 @@
 {
 	"Conductors" : {
-		"Mesecon" : "mesecons/doc/mesecon",
+		"Mesecon" : "mesecons_wires/doc/mesecon",
 		"Insulated Wire" : "mesecons_insulated/doc/insulated",
 		"T-Junction" : "mesecons_extrawires/doc/tjunction",
 		"Crossing" : "mesecons_extrawires/doc/crossing",
@@ -42,6 +42,8 @@
 	},
 	"Logic" : {
 		"Luacontroller" : "mesecons_luacontroller/doc/luacontroller",
+		"FPGA" : "mesecons_fpga/doc/fpga",
+		"FPGA Programmer" : "mesecons_fpga/doc/programmer",
 		"Torch" : "mesecons_torch/doc/torch",
 		"Delayer" : "mesecons_delayer/doc/delayer",
 		"Gates" : {

mesecons/actionqueue.lua

@@ -87,8 +87,12 @@ minetest.register_globalstep(function (dtime)
 end)
 
 function mesecon.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 mesecon.queue.funcs[action.func] then
 		mesecon.queue.funcs[action.func](action.pos, unpack(action.params))
 	end
+end
 
 
 -- Store and read the ActionQueue to / from a file

mesecons/doc/mesecon/description.html

@@ -1 +0,0 @@
- Mesecons are the wires, use them to connect effectors with receptors.

mesecons/init.lua

@@ -3,7 +3,7 @@
 -- |  \/  | |___ ____  |___ |      |    | | \  | |____
 -- |      | |        | |    |      |    | |  \ |     |
 -- |      | |___ ____| |___ |____  |____| |   \| ____|
--- by Jeija, Uberi (Temperest), sfan5, VanessaE
+-- by Jeija, Uberi (Temperest), sfan5, VanessaE, Hawk777 and contributors
 --
 --
 --
@@ -11,7 +11,7 @@
 -- See the documentation on the forum for additional information, especially about crafting
 --
 --
--- For developer documentation see the Developers' section on mesecons.TK
+-- For basic development resources, see http://mesecons.net/developers.html
 --
 --
 --
@@ -70,19 +70,11 @@ dofile(minetest.get_modpath("mesecons").."/internal.lua");
 -- these are the only functions you need to remember
 
 mesecon.queue:add_function("receptor_on", function (pos, rules)
+	mesecon.vm_begin()
+
 	rules = rules or mesecon.rules.default
 
-	-- if area (any of the rule targets) is not loaded, keep trying and call this again later
+	-- Call turnon on all linking positions
-	for _, rule in ipairs(mesecon.flattenrules(rules)) do
-		local np = vector.add(pos, rule)
-		-- if area is not loaded, keep trying
-		if minetest.get_node_or_nil(np) == nil then
-			mesecon.queue:add_action(pos, "receptor_on", {rules}, nil, rules)
-			return
-		end
-	end
-
-	-- execute action
 	for _, rule in ipairs(mesecon.flattenrules(rules)) do
 		local np = vector.add(pos, rule)
 		local rulenames = mesecon.rules_link_rule_all(pos, rule)
@@ -90,6 +82,8 @@ mesecon.queue:add_function("receptor_on", function (pos, rules)
 			mesecon.turnon(np, rulename)
 		end
 	end
+
+	mesecon.vm_commit()
 end)
 
 function mesecon.receptor_on(pos, rules)
@@ -99,23 +93,21 @@ end
 mesecon.queue:add_function("receptor_off", function (pos, rules)
 	rules = rules or mesecon.rules.default
 
-	-- if area (any of the rule targets) is not loaded, keep trying and call this again later
+	-- Call turnoff on all linking positions
-	for _, rule in ipairs(mesecon.flattenrules(rules)) do
-		local np = vector.add(pos, rule)
-		if minetest.get_node_or_nil(np) == nil then
-			mesecon.queue:add_action(pos, "receptor_off", {rules}, nil, rules)
-			return
-		end
-	end
-
 	for _, rule in ipairs(mesecon.flattenrules(rules)) do
 		local np = vector.add(pos, rule)
 		local rulenames = mesecon.rules_link_rule_all(pos, rule)
 		for _, rulename in ipairs(rulenames) do
-			if not mesecon.connected_to_receptor(np, mesecon.invertRule(rule)) then
+			mesecon.vm_begin()
-				mesecon.turnoff(np, rulename)
-			else
 			mesecon.changesignal(np, minetest.get_node(np), rulename, mesecon.state.off, 2)
+
+			-- Turnoff returns true if turnoff process was successful, no onstate receptor
+			-- was found along the way. Commit changes that were made in voxelmanip. If turnoff
+			-- returns true, an onstate receptor was found, abort voxelmanip transaction.
+			if (mesecon.turnoff(np, rulename)) then
+				mesecon.vm_commit()
+			else
+				mesecon.vm_abort()
 			end
 		end
 	end
@@ -132,8 +124,5 @@ print("[OK] Mesecons")
 -- To be removed in future releases
 dofile(minetest.get_modpath("mesecons").."/legacy.lua");
 
---The actual wires
-dofile(minetest.get_modpath("mesecons").."/wires.lua");
-
 --Services like turnoff receptor on dignode and so on
 dofile(minetest.get_modpath("mesecons").."/services.lua");

mesecons/internal.lua

@@ -37,11 +37,6 @@
 -- HIGH-LEVEL Internals
 -- mesecon.is_power_on(pos)				--> Returns true if pos emits power in any way
 -- mesecon.is_power_off(pos)				--> Returns true if pos does not emit power in any way
--- mesecon.turnon(pos, link) 				--> link is the input rule that caused calling turnon, turns on every connected node, iterative
--- mesecon.turnoff(pos, link)				--> link is the input rule that caused calling turnoff, turns off every connected node, iterative
--- mesecon.connected_to_receptor(pos, link)		--> Returns true if pos is connected to a receptor directly or via conductors, iterative
--- mesecon.rules_link(output, input, dug_outputrules)	--> Returns true if outputposition + outputrules = inputposition and inputposition + inputrules = outputposition (if the two positions connect)
--- mesecon.rules_link_anydir(outp., inp., d_outpr.)	--> Same as rules mesecon.rules_link but also returns true if output and input are swapped
 -- mesecon.is_powered(pos)				--> Returns true if pos is powered by a receptor or a conductor
 
 -- RULES ROTATION helpers
@@ -371,38 +366,32 @@ function mesecon.is_power_off(pos, rulename)
 	return false
 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}}
 
 	local depth = 1
-	while frontiers[depth] do
+	while frontiers[1] do
-		local f = frontiers[depth]
+		local f = table.remove(frontiers, 1)
 		local node = mesecon.get_node_force(f.pos)
 
-		-- area not loaded, postpone action
 		if not node then
-			mesecon.queue:add_action(f.pos, "turnon", {link}, nil, true)
+			-- Area does not exist; do nothing
 		elseif mesecon.is_conductor_off(node, f.link) then
 			local rules = mesecon.conductor_get_rules(node)
 
-			minetest.swap_node(f.pos, {name = mesecon.get_conductor_on(node, f.link),
+			-- Call turnon on neighbors
-				param2 = node.param2})
-
-			-- call turnon on neighbors: normal rules
 			for _, r in ipairs(mesecon.rule2meta(f.link, rules)) do
 				local np = vector.add(f.pos, r)
-
+				for _, l in ipairs(mesecon.rules_link_rule_all(f.pos, r)) do
-				-- area not loaded, postpone action
-				if not mesecon.get_node_force(np) then
-					mesecon.queue:add_action(np, "turnon", {rulename},
-						nil, true)
-				else
-					local links = mesecon.rules_link_rule_all(f.pos, r)
-					for _, l in ipairs(links) do
 					table.insert(frontiers, {pos = np, link = l})
 				end
 			end
-			end
+
+			mesecon.swap_node_force(f.pos, mesecon.get_conductor_on(node, f.link))
 		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
@@ -413,137 +402,77 @@ function mesecon.turnon(pos, link)
 	end
 end
 
-mesecon.queue:add_function("turnon", function (pos, rulename, recdepth)
+-- Turn on an equipotential section starting at `pos`, which outputs in the direction of `link`.
-	mesecon.turnon(pos, rulename, recdepth)
+-- Breadth-first search. Map is abstracted away in a voxelmanip.
-end)
+-- Follow all all conductor paths replacing conductors that were already
-
+-- looked at, deactivating / changing all effectors along the way.
+-- In case an onstate receptor is discovered, abort the process by returning false, which will
+-- cause `receptor_off` to discard all changes made in the voxelmanip.
+-- Contrary to turnon, turnoff has to cache all change and deactivate signals so that they will only
+-- be called in the very end when we can be sure that no conductor was found along the path.
+--
+-- Signal table entry structure:
+-- {
+--	pos = position of effector,
+--	node = node descriptor (name, param1 and param2),
+--	link = link the effector is connected to,
+--	depth = indicates order in which signals wire fired, higher is later
+-- }
 function mesecon.turnoff(pos, link)
 	local frontiers = {{pos = pos, link = link}}
+	local signals = {}
 
 	local depth = 1
-	while frontiers[depth] do
+	while frontiers[1] do
-		local f = frontiers[depth]
+		local f = table.remove(frontiers, 1)
 		local node = mesecon.get_node_force(f.pos)
 
-		-- area not loaded, postpone action
 		if not node then
-			mesecon.queue:add_action(f.pos, "turnoff", {link}, nil, true)
+			-- Area does not exist; do nothing
 		elseif mesecon.is_conductor_on(node, f.link) then
 			local rules = mesecon.conductor_get_rules(node)
-
-			minetest.swap_node(f.pos, {name = mesecon.get_conductor_off(node, f.link),
-				param2 = node.param2})
-
-			-- call turnoff on neighbors: normal rules
 			for _, r in ipairs(mesecon.rule2meta(f.link, rules)) do
 				local np = vector.add(f.pos, r)
 
-				-- area not loaded, postpone action
+				-- Check if an onstate receptor is connected. If that is the case,
-				if not mesecon.get_node_force(np) then
+				-- abort this turnoff process by returning false. `receptor_off` will
-					mesecon.queue:add_action(np, "turnoff", {rulename},
+				-- discard all the changes that we made in the voxelmanip:
-						nil, true)
+				for _, l in ipairs(mesecon.rules_link_rule_all_inverted(f.pos, r)) do
-				else
+					if mesecon.is_receptor_on(mesecon.get_node_force(np).name) then
-					local links = mesecon.rules_link_rule_all(f.pos, r)
+						return false
-					for _, l in ipairs(links) do
+					end
+				end
+
+				-- Call turnoff on neighbors
+				for _, l in ipairs(mesecon.rules_link_rule_all(f.pos, r)) do
 					table.insert(frontiers, {pos = np, link = l})
 				end
 			end
-			end
+
+			mesecon.swap_node_force(f.pos, mesecon.get_conductor_off(node, f.link))
 		elseif mesecon.is_effector(node.name) then
-			mesecon.changesignal(f.pos, node, f.link, mesecon.state.off, depth)
+			table.insert(signals, {
-			if mesecon.is_effector_on(node.name) and not mesecon.is_powered(f.pos) then
+				pos = f.pos,
-				mesecon.deactivate(f.pos, node, f.link, depth)
+				node = node,
-			end
+				link = f.link,
+				depth = depth
+			})
 		end
 		depth = depth + 1
 	end
+
+	for _, sig in ipairs(signals) do
+		mesecon.changesignal(sig.pos, sig.node, sig.link, mesecon.state.off, sig.depth)
+		if mesecon.is_effector_on(sig.node.name) and not mesecon.is_powered(sig.pos) then
+			mesecon.deactivate(sig.pos, sig.node, sig.link, sig.depth)
+		end
 	end
 
-mesecon.queue:add_function("turnoff", function (pos, rulename, recdepth)
-	mesecon.turnoff(pos, rulename, recdepth)
-end)
-
-
-function mesecon.connected_to_receptor(pos, link)
-	local node = mesecon.get_node_force(pos)
-	if not node then return false end
-
-	-- Check if conductors around are connected
-	local rules = mesecon.get_any_inputrules(node)
-	if not rules then return false end
-
-	for _, rule in ipairs(mesecon.rule2meta(link, rules)) do
-		local links = mesecon.rules_link_rule_all_inverted(pos, rule)
-		for _, l in ipairs(links) do
-			local np = vector.add(pos, l)
-			if mesecon.find_receptor_on(np, mesecon.invertRule(l)) then
 	return true
 end
-		end
-	end
-
-	return false
-end
-
-function mesecon.find_receptor_on(pos, link)
-	local frontiers = {{pos = pos, link = link}}
-	local checked = {}
-
-	-- List of positions that have been searched for onstate receptors
-	local depth = 1
-	while frontiers[depth] do
-		local f = frontiers[depth]
-		local node = mesecon.get_node_force(f.pos)
-
-		if not node then return false end
-		if mesecon.is_receptor_on(node.name) then return true end
-		if mesecon.is_conductor_on(node, f.link) then
-			local rules = mesecon.conductor_get_rules(node)
-
-			-- call turnoff on neighbors: normal rules
-			for _, r in ipairs(mesecon.rule2meta(f.link, rules)) do
-				local np = vector.add(f.pos, r)
-
-				local links = mesecon.rules_link_rule_all_inverted(f.pos, r)
-				for _, l in ipairs(links) do
-					local checkedstring = np.x..np.y..np.z..l.x..l.y..l.z
-					if not checked[checkedstring] then
-						table.insert(frontiers, {pos = np, link = l})
-						checked[checkedstring] = true
-					end
-				end
-			end
-
-		end
-		depth = depth + 1
-	end
-end
-
-function mesecon.rules_link(output, input, dug_outputrules) --output/input are positions (outputrules optional, used if node has been dug), second return value: the name of the affected input rule
-	local outputnode = mesecon.get_node_force(output)
-	local inputnode = mesecon.get_node_force(input)
-
-	local outputrules = dug_outputrules or mesecon.get_any_outputrules (outputnode)
-	local inputrules = mesecon.get_any_inputrules (inputnode)
-	if not outputrules or not inputrules then
-		return
-	end
-
-	for _, outputrule in ipairs(mesecon.flattenrules(outputrules)) do
-		-- Check if output sends to input
-		if vector.equals(vector.add(output, outputrule), input) then
-			for _, inputrule in ipairs(mesecon.flattenrules(inputrules)) do
-				-- Check if input accepts from output
-				if  vector.equals(vector.add(input, inputrule), output) then
-					return true, inputrule
-				end
-			end
-		end
-	end
-
-	return false
-end
 
+-- Get all linking inputrules of inputnode (effector or conductor) that is connected to
+-- outputnode (receptor or conductor) at position `output` and has an output in direction `rule`
 function mesecon.rules_link_rule_all(output, rule)
 	local input = vector.add(output, rule)
 	local inputnode = mesecon.get_node_force(input)
@@ -563,8 +492,9 @@ function mesecon.rules_link_rule_all(output, rule)
 	return rules
 end
 
+-- Get all linking outputnodes of outputnode (receptor or conductor) that is connected to
+-- inputnode (effector or conductor) at position `input` and has an input in direction `rule`
 function mesecon.rules_link_rule_all_inverted(input, rule)
-	--local irule = mesecon.invertRule(rule)
 	local output = vector.add(input, rule)
 	local outputnode = mesecon.get_node_force(output)
 	local outputrules = mesecon.get_any_outputrules(outputnode)
@@ -581,10 +511,6 @@ function mesecon.rules_link_rule_all_inverted(input, rule)
 	return rules
 end
 
-function mesecon.rules_link_anydir(pos1, pos2)
-	return mesecon.rules_link(pos1, pos2) or mesecon.rules_link(pos2, pos1)
-end
-
 function mesecon.is_powered(pos, rule)
 	local node = mesecon.get_node_force(pos)
 	local rules = mesecon.get_any_inputrules(node)
@@ -622,52 +548,3 @@ function mesecon.is_powered(pos, rule)
 	if (#sourcepos == 0) then return false
 	else return sourcepos end
 end
-
---Rules rotation Functions:
-function mesecon.rotate_rules_right(rules)
-	local nr = {}
-	for i, rule in ipairs(rules) do
-		table.insert(nr, {
-			x = -rule.z,
-			y =  rule.y,
-			z =  rule.x,
-			name = rule.name})
-	end
-	return nr
-end
-
-function mesecon.rotate_rules_left(rules)
-	local nr = {}
-	for i, rule in ipairs(rules) do
-		table.insert(nr, {
-			x =  rule.z,
-			y =  rule.y,
-			z = -rule.x,
-			name = rule.name})
-	end
-	return nr
-end
-
-function mesecon.rotate_rules_down(rules)
-	local nr = {}
-	for i, rule in ipairs(rules) do
-		table.insert(nr, {
-			x = -rule.y,
-			y =  rule.x,
-			z =  rule.z,
-			name = rule.name})
-	end
-	return nr
-end
-
-function mesecon.rotate_rules_up(rules)
-	local nr = {}
-	for i, rule in ipairs(rules) do
-		table.insert(nr, {
-			x =  rule.y,
-			y = -rule.x,
-			z =  rule.z,
-			name = rule.name})
-	end
-	return nr
-end

mesecons/legacy.lua

@@ -1,30 +1,14 @@
--- Ugly hack to prevent breaking compatibility with other mods
+-- Un-forceload any forceloaded mapblocks from older versions of Mesecons which
--- Just remove the following two functions to delete the hack, to be done when other mods have updated
+-- used forceloading instead of VoxelManipulators.
-function mesecon.receptor_on(self, pos, rules)
+local BLOCKSIZE = 16
-	if (self.receptor_on) then
+
-		print("[Mesecons] Warning: A mod with mesecon support called mesecon:receptor_on.")
+-- convert block hash --> node position
-		print("[Mesecons]          If you are the programmer of this mod, please update it ")
+local function unhash_blockpos(hash)
-		print("[Mesecons]          to use mesecon.receptor_on instead. mesecon:* is deprecated")
+	return vector.multiply(minetest.get_position_from_hash(hash), BLOCKSIZE)
-		print("[Mesecons]          Otherwise, please make sure you're running the latest version")
-		print("[Mesecons]          of that mod and inform the mod creator.")
-	else
-		rules = pos
-		pos = self
-	end
-	mesecon.queue:add_action(pos, "receptor_on", {rules}, nil, rules)
 end
 
-function mesecon.receptor_off(self, pos, rules)
+local old_forceloaded_blocks = mesecon.file2table("mesecon_forceloaded")
-	if (self.receptor_off) then
+for hash, _ in pairs(old_forceloaded_blocks) do
-		print("[Mesecons] Warning: A mod with mesecon support called mesecon:receptor_off.")
+	minetest.forceload_free_block(unhash_blockpos(hash))
-		print("[Mesecons]          If you are the programmer of this mod, please update it ")
-		print("[Mesecons]          to use mesecon.receptor_off instead. mesecon:* is deprecated")
-		print("[Mesecons]          Otherwise, please make sure you're running the latest version")
-		print("[Mesecons]          of that mod and inform the mod creator.")
-	else
-		rules = pos
-		pos = self
 end
-	mesecon.queue:add_action(pos, "receptor_off", {rules}, nil, rules)
+os.remove(minetest.get_worldpath()..DIR_DELIM.."mesecon_forceloaded")
-end
-

mesecons/oldwires.lua

@@ -4,7 +4,7 @@ minetest.register_node("mesecons:mesecon_off", {
 	inventory_image = "jeija_mesecon_off.png",
 	wield_image = "jeija_mesecon_off.png",
 	paramtype = "light",
-	is_ground_content = true,
+	is_ground_content = false,
 	walkable = false,
 	selection_box = {
 		type = "fixed",
@@ -22,7 +22,7 @@ minetest.register_node("mesecons:mesecon_on", {
 	drawtype = "raillike",
 	tiles = {"jeija_mesecon_on.png", "jeija_mesecon_curved_on.png", "jeija_mesecon_t_junction_on.png", "jeija_mesecon_crossing_on.png"},
 	paramtype = "light",
-	is_ground_content = true,
+	is_ground_content = false,
 	walkable = false,
 	selection_box = {
 		type = "fixed",
@@ -30,7 +30,7 @@ minetest.register_node("mesecons:mesecon_on", {
 	},
 	groups = {dig_immediate=3, not_in_creaive_inventory=1, mesecon=1},
 	drop = "mesecons:mesecon_off 1",
-	light_source = default.LIGHT_MAX-11,
+	light_source = minetest.LIGHT_MAX-11,
 	mesecons = {conductor={
 		state = mesecon.state.on,
 		offstate = "mesecons:mesecon_off"

mesecons/presets.lua

@@ -1,8 +1,8 @@
 mesecon.rules = {}
 mesecon.state = {}
 
-mesecon.rules.default =
+mesecon.rules.default = {
-{{x=0,  y=0,  z=-1},
+	{x =  0, y =  0, z = -1},
 	{x =  1, y =  0, z =  0},
 	{x = -1, y =  0, z =  0},
 	{x =  0, y =  0, z =  1},
@@ -13,42 +13,73 @@ mesecon.rules.default =
 	{x =  0, y =  1, z =  1},
 	{x =  0, y = -1, z =  1},
 	{x =  0, y =  1, z = -1},
- {x=0,  y=-1, z=-1}}
+	{x =  0, y = -1, z = -1},
+}
 
-mesecon.rules.pplate = mesecon.mergetable(mesecon.rules.default, {{x=0, y=-2, z=0}})
+mesecon.rules.floor = mesecon.mergetable(mesecon.rules.default, {{x = 0, y = -1, z = 0}})
 
-mesecon.rules.buttonlike =
+mesecon.rules.pplate = mesecon.mergetable(mesecon.rules.floor, {{x = 0, y = -2, z = 0}})
-{{x = 1,  y = 0, z = 0},
+
+mesecon.rules.buttonlike = {
+	{x = 1,  y =  0, z =  0},
 	{x = 1,  y =  1, z =  0},
 	{x = 1,  y = -1, z =  0},
 	{x = 1,  y = -1, z =  1},
 	{x = 1,  y = -1, z = -1},
- {x = 2,  y = 0, z = 0}}
+	{x = 2,  y =  0, z =  0},
+}
 
-mesecon.rules.flat =
+mesecon.rules.flat = {
-{{x = 1, y = 0, z = 0},
+	{x =  1, y = 0, z =  0},
 	{x = -1, y = 0, z =  0},
 	{x =  0, y = 0, z =  1},
- {x = 0, y = 0, z =-1}}
+	{x =  0, y = 0, z = -1},
+}
 
-mesecon.rules.alldirs =
+mesecon.rules.alldirs = {
-{{x= 1, y= 0,  z= 0},
+	{x =  1, y =  0,  z =  0},
 	{x = -1, y =  0,  z =  0},
 	{x =  0, y =  1,  z =  0},
 	{x =  0, y = -1,  z =  0},
 	{x =  0, y =  0,  z =  1},
- {x= 0, y= 0,  z=-1}}
+	{x =  0, y =  0,  z = -1},
+}
+
+local rules_wallmounted = {
+	xp = mesecon.rotate_rules_down(mesecon.rules.floor),
+	xn = mesecon.rotate_rules_up(mesecon.rules.floor),
+	yp = mesecon.rotate_rules_up(mesecon.rotate_rules_up(mesecon.rules.floor)),
+	yn = mesecon.rules.floor,
+	zp = mesecon.rotate_rules_left(mesecon.rotate_rules_up(mesecon.rules.floor)),
+	zn = mesecon.rotate_rules_right(mesecon.rotate_rules_up(mesecon.rules.floor)),
+}
+
+local rules_buttonlike = {
+	xp = mesecon.rules.buttonlike,
+	xn = mesecon.rotate_rules_right(mesecon.rotate_rules_right(mesecon.rules.buttonlike)),
+	yp = mesecon.rotate_rules_down(mesecon.rules.buttonlike),
+	yn = mesecon.rotate_rules_up(mesecon.rules.buttonlike),
+	zp = mesecon.rotate_rules_right(mesecon.rules.buttonlike),
+	zn = mesecon.rotate_rules_left(mesecon.rules.buttonlike),
+}
+
+local function rules_from_dir(ruleset, dir)
+	if dir.x ==  1 then return ruleset.xp end
+	if dir.y ==  1 then return ruleset.yp end
+	if dir.z ==  1 then return ruleset.zp end
+	if dir.x == -1 then return ruleset.xn end
+	if dir.y == -1 then return ruleset.yn end
+	if dir.z == -1 then return ruleset.zn end
+end
+
+mesecon.rules.wallmounted_get = function(node)
+	local dir = minetest.wallmounted_to_dir(node.param2)
+	return rules_from_dir(rules_wallmounted, dir)
+end
 
 mesecon.rules.buttonlike_get = function(node)
-	local rules = mesecon.rules.buttonlike
+	local dir = minetest.facedir_to_dir(node.param2)
-	if node.param2 == 2 then
+	return rules_from_dir(rules_buttonlike, dir)
-		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
 
 mesecon.state.on = "on"

mesecons/services.lua

@@ -1,7 +1,7 @@
 -- Dig and place services
 
 mesecon.on_placenode = function(pos, node)
-	mesecon.update_autoconnect(pos, node)
+	mesecon.execute_autoconnect_hooks_now(pos, node)
 
 	-- Receptors: Send on signal when active
 	if mesecon.is_receptor_on(node.name) then
@@ -21,7 +21,8 @@ mesecon.on_placenode = function (pos, node)
 			end
 			--mesecon.receptor_on (pos, mesecon.conductor_get_rules(node))
 		elseif mesecon.is_conductor_on(node) then
-			minetest.swap_node(pos, {name = mesecon.get_conductor_off(node)})
+			node.name = mesecon.get_conductor_off(node)
+			minetest.swap_node(pos, node)
 		end
 	end
 
@@ -58,39 +59,78 @@ mesecon.on_dignode = function (pos, node)
 	elseif mesecon.is_receptor_on(node.name) then
 		mesecon.receptor_off(pos, mesecon.receptor_get_rules(node))
 	end
-	mesecon.queue:add_action(pos, "update_autoconnect", {node})
+
+	mesecon.execute_autoconnect_hooks_queue(pos, node)
 end
 
-mesecon.queue:add_function("update_autoconnect", mesecon.update_autoconnect)
+function mesecon.on_blastnode(pos, intensity)
+	local node = minetest.get_node(pos)
+	minetest.remove_node(pos)
+	mesecon.on_dignode(pos, node)
+	return minetest.get_node_drops(node.name, "")
+end
 
 minetest.register_on_placenode(mesecon.on_placenode)
 minetest.register_on_dignode(mesecon.on_dignode)
 
 -- Overheating service for fast circuits
+local OVERHEAT_MAX = mesecon.setting("overheat_max", 20)
+local COOLDOWN_TIME = mesecon.setting("cooldown_time", 2.0)
+local COOLDOWN_STEP = mesecon.setting("cooldown_granularity", 0.5)
+local COOLDOWN_MULTIPLIER = OVERHEAT_MAX / COOLDOWN_TIME
+local cooldown_timer = 0.0
+local object_heat = {}
 
 -- returns true if heat is too high
-mesecon.do_overheat = function(pos)
+function mesecon.do_overheat(pos)
-	local meta = minetest.get_meta(pos)
+	local id = minetest.hash_node_position(pos)
-	local heat = meta:get_int("heat") or 0
+	local heat = (object_heat[id] or 0) + 1
-
+	object_heat[id] = heat
-	heat = heat + 1
+	if heat >= OVERHEAT_MAX then
-	meta:set_int("heat", heat)
+		minetest.log("action", "Node overheats at " .. minetest.pos_to_string(pos))
-
+		object_heat[id] = nil
-	if heat < mesecon.setting("overheat_max", 20) then
-		mesecon.queue:add_action(pos, "cooldown", {}, 1, nil, 0)
-	else
 		return true
 	end
-
 	return false
 end
 
-
+function mesecon.do_cooldown(pos)
-mesecon.queue:add_function("cooldown", function (pos)
+	local id = minetest.hash_node_position(pos)
-	local meta = minetest.get_meta(pos)
+	object_heat[id] = nil
-	local heat = meta:get_int("heat")
-
-	if (heat > 0) then
-		meta:set_int("heat", heat - 1)
 end
-end)
+
+function mesecon.get_heat(pos)
+	local id = minetest.hash_node_position(pos)
+	return object_heat[id] or 0
+end
+
+function mesecon.move_hot_nodes(moved_nodes)
+	local new_heat = {}
+	for _, n in ipairs(moved_nodes) do
+		local old_id = minetest.hash_node_position(n.oldpos)
+		local new_id = minetest.hash_node_position(n.pos)
+		new_heat[new_id] = object_heat[old_id]
+		object_heat[old_id] = nil
+	end
+	for id, heat in pairs(new_heat) do
+		object_heat[id] = heat
+	end
+end
+
+local function global_cooldown(dtime)
+	cooldown_timer = cooldown_timer + dtime
+	if cooldown_timer < COOLDOWN_STEP then
+		return -- don't overload the CPU
+	end
+	local cooldown = COOLDOWN_MULTIPLIER * cooldown_timer
+	cooldown_timer = 0
+	for id, heat in pairs(object_heat) do
+		heat = heat - cooldown
+		if heat <= 0 then
+			object_heat[id] = nil -- free some RAM
+		else
+			object_heat[id] = heat
+		end
+	end
+end
+minetest.register_globalstep(global_cooldown)

mesecons/settings.lua

@@ -1,15 +1,15 @@
 -- SETTINGS
 function mesecon.setting(setting, default)
 	if type(default) == "boolean" then
-		local read = minetest.setting_getbool("mesecon."..setting)
+		local read = minetest.settings:get_bool("mesecon."..setting)
 		if read == nil then
 			return default
 		else
 			return read
 		end
 	elseif type(default) == "string" then
-		return minetest.setting_get("mesecon."..setting) or default
+		return minetest.settings:get("mesecon."..setting) or default
 	elseif type(default) == "number" then
-		return tonumber(minetest.setting_get("mesecon."..setting) or default)
+		return tonumber(minetest.settings:get("mesecon."..setting) or default)
 	end
 end

mesecons/util.lua

@@ -6,6 +6,56 @@ function mesecon.move_node(pos, newpos)
 	minetest.get_meta(pos):from_table(meta)
 end
 
+-- Rules rotation Functions:
+function mesecon.rotate_rules_right(rules)
+	local nr = {}
+	for i, rule in ipairs(rules) do
+		table.insert(nr, {
+			x = -rule.z,
+			y =  rule.y,
+			z =  rule.x,
+			name = rule.name})
+	end
+	return nr
+end
+
+function mesecon.rotate_rules_left(rules)
+	local nr = {}
+	for i, rule in ipairs(rules) do
+		table.insert(nr, {
+			x =  rule.z,
+			y =  rule.y,
+			z = -rule.x,
+			name = rule.name})
+	end
+	return nr
+end
+
+function mesecon.rotate_rules_down(rules)
+	local nr = {}
+	for i, rule in ipairs(rules) do
+		table.insert(nr, {
+			x = -rule.y,
+			y =  rule.x,
+			z =  rule.z,
+			name = rule.name})
+	end
+	return nr
+end
+
+function mesecon.rotate_rules_up(rules)
+	local nr = {}
+	for i, rule in ipairs(rules) do
+		table.insert(nr, {
+			x =  rule.y,
+			y = -rule.x,
+			z =  rule.z,
+			name = rule.name})
+	end
+	return nr
+end
+--
+
 function mesecon.flattenrules(allrules)
 --[[
 	{
@@ -136,19 +186,11 @@ function mesecon.invertRule(r)
 	return vector.multiply(r, -1)
 end
 
-function mesecon.tablecopy(table) -- deep table copy
+function mesecon.tablecopy(obj) -- deep copy
-	if type(table) ~= "table" then return table end -- no need to copy
+	if type(obj) == "table" then
-	local newtable = {}
+		return table.copy(obj)
-
-	for idx, item in pairs(table) do
-		if type(item) == "table" then
-			newtable[idx] = mesecon.tablecopy(item)
-		else
-			newtable[idx] = item
 	end
-	end
+	return obj
-
-	return newtable
 end
 
 function mesecon.cmpAny(t1, t2)
@@ -178,6 +220,7 @@ 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
 	spec_common.__mesecon_basename = name
 	spec_on.__mesecon_state = "on"
 	spec_off.__mesecon_state = "off"
@@ -219,7 +262,7 @@ function mesecon.table2file(filename, table)
 	f:close()
 end
 
--- Forceloading: Force server to load area if node is nil
+-- Block position "hashing" (convert to integer) functions for voxelmanip cache
 local BLOCKSIZE = 16
 
 -- convert node position --> block hash
@@ -231,45 +274,160 @@ local function hash_blockpos(pos)
 	})
 end
 
--- convert block hash --> node position
+-- Maps from a hashed mapblock position (as returned by hash_blockpos) to a
-local function unhash_blockpos(hash)
+-- table.
-	return vector.multiply(minetest.get_position_from_hash(hash), BLOCKSIZE)
+--
+-- 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
+
+-- Starts a VoxelManipulator-based transaction.
+--
+-- During a VM transaction, calls to vm_get_node and vm_swap_node operate on a
+-- cached copy of the world loaded via VoxelManipulators. That cache can later
+-- be committed to the real map by means of vm_commit or discarded by means of
+-- vm_abort.
+function mesecon.vm_begin()
+	vm_cache = {}
 end
 
-mesecon.forceloaded_blocks = {}
+-- Finishes a VoxelManipulator-based transaction, freeing the VMs and map data
+-- and writing back any modified areas.
+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:update_map()
+		end
+	end
+	vm_cache = nil
+end
 
--- get node and force-load area
+-- Finishes a VoxelManipulator-based transaction, freeing the VMs and throwing
-function mesecon.get_node_force(pos)
+-- away any modified areas.
+function mesecon.vm_abort()
+	vm_cache = nil
+end
+
+-- Gets the cache entry covering a position, populating it if necessary.
+local function vm_get_or_create_entry(pos)
 	local hash = hash_blockpos(pos)
-
+	local tbl = vm_cache[hash]
-	if mesecon.forceloaded_blocks[hash] == nil then
+	if not tbl then
-		-- if no more forceload spaces are available, try again next time
+		local vm = minetest.get_voxel_manip(pos, pos)
-		if minetest.forceload_block(pos) then
+		local min_pos, max_pos = vm:get_emerged_area()
-			mesecon.forceloaded_blocks[hash] = 0
+		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}
+		vm_cache[hash] = tbl
 	end
+	return tbl
+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
-		mesecon.forceloaded_blocks[hash] = 0
+		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}
+	end
 end
 
-	return minetest.get_node_or_nil(pos)
+-- 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)
+	local tbl = vm_get_or_create_entry(pos)
+	local index = tbl.va:indexp(pos)
+	tbl.data[index] = minetest.get_content_id(name)
+	tbl.dirty = true
 end
 
-minetest.register_globalstep(function (dtime)
+-- Gets the node at a given position, regardless of whether it is loaded or
-	for hash, time in pairs(mesecon.forceloaded_blocks) do
+-- not, respecting a transaction if one is in progress.
-		-- unload forceloaded blocks after 10 minutes without usage
+--
-		if (time > mesecon.setting("forceload_timeout", 600)) then
+-- Outside a VM transaction, if the mapblock is not loaded, it is pulled into
-			minetest.forceload_free_block(unhash_blockpos(hash))
+-- the server’s main map data cache and then accessed from there.
-			mesecon.forceloaded_blocks[hash] = nil
+--
+-- Inside a VM transaction, the transaction’s VM cache is used.
+function mesecon.get_node_force(pos)
+	if vm_cache then
+		return mesecon.vm_get_node(pos)
 	else
-			mesecon.forceloaded_blocks[hash] = time + dtime
+		local node = minetest.get_node_or_nil(pos)
+		if node == nil then
+			-- Node is not currently loaded; use a VoxelManipulator to prime
+			-- the mapblock cache and try again.
+			minetest.get_voxel_manip(pos, pos)
+			node = minetest.get_node_or_nil(pos)
+		end
+		return node
 	end
 end
-end)
 
--- Store and read the forceloaded blocks to / from a file
+-- Swaps the node at a given position, regardless of whether it is loaded or
--- so that those blocks are remembered when the game
+-- not, respecting a transaction if one is in progress.
--- is restarted
+--
-mesecon.forceloaded_blocks = mesecon.file2table("mesecon_forceloaded")
+-- Outside a VM transaction, if the mapblock is not loaded, it is pulled into
-minetest.register_on_shutdown(function()
+-- the server’s main map data cache and then accessed from there.
-	mesecon.table2file("mesecon_forceloaded", mesecon.forceloaded_blocks)
+--
-end)
+-- Inside a VM transaction, the transaction’s VM cache is used.
+--
+-- This function can only be used to change the node’s name, not its parameters
+-- or metadata.
+function mesecon.swap_node_force(pos, name)
+	if vm_cache then
+		return mesecon.vm_swap_node(pos, name)
+	else
+		-- This serves to both ensure the mapblock is loaded and also hand us
+		-- the old node table so we can preserve param2.
+		local node = mesecon.get_node_force(pos)
+		node.name = name
+		minetest.swap_node(pos, node)
+	end
+end
+
+-- Autoconnect Hooks
+-- Nodes like conductors may change their appearance and their connection rules
+-- right after being placed or after being dug, e.g. the default wires use this
+-- to automatically connect to linking nodes after placement.
+-- After placement, the update function will be executed immediately so that the
+-- possibly changed rules can be taken into account when recalculating the circuit.
+-- After digging, the update function will be queued and executed after
+-- recalculating the circuit. The update function must take care of updating the
+-- node at the given position itself, but also all of the other nodes the given
+-- position may have (had) a linking connection to.
+mesecon.autoconnect_hooks = {}
+
+-- name: A unique name for the hook, e.g. "foowire". Used to name the actionqueue function.
+-- fct: The update function with parameters function(pos, node)
+function mesecon.register_autoconnect_hook(name, fct)
+	mesecon.autoconnect_hooks[name] = fct
+	mesecon.queue:add_function("autoconnect_hook_"..name, fct)
+end
+
+function mesecon.execute_autoconnect_hooks_now(pos, node)
+	for _, fct in pairs(mesecon.autoconnect_hooks) do
+		fct(pos, node)
+	end
+end
+
+function mesecon.execute_autoconnect_hooks_queue(pos, node)
+	for name in pairs(mesecon.autoconnect_hooks) do
+		mesecon.queue:add_action(pos, "autoconnect_hook_"..name, {node})
+	end
+end

mesecons_blinkyplant/doc/blinkyplant/description.html

@@ -1 +1,2 @@
 The blinky plants toggles between on and off state every three seconds. Can be used to make clocks. Also works after having restarted the game.
+It stops blinking in an inactive block, then starts again when the block becomes active.

mesecons_blinkyplant/init.lua

@@ -24,6 +24,7 @@ mesecon.register_node("mesecons_blinkyplant:blinky_plant", {
 	drawtype = "plantlike",
 	inventory_image = "jeija_blinky_plant_off.png",
 	paramtype = "light",
+	is_ground_content = false,
 	walkable = false,
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {

mesecons_button/init.lua

@@ -4,13 +4,14 @@
 
 mesecon.button_turnoff = function (pos)
 	local node = minetest.get_node(pos)
-	if node.name=="mesecons_button:button_on" then --has not been dug
+	if node.name ~= "mesecons_button:button_on" then -- has been dug
+		return
+	end
 	minetest.swap_node(pos, {name = "mesecons_button:button_off", param2 = node.param2})
 	minetest.sound_play("mesecons_button_pop", {pos = pos})
 	local rules = mesecon.rules.buttonlike_get(node)
 	mesecon.receptor_off(pos, rules)
 end
-end
 
 minetest.register_node("mesecons_button:button_off", {
 	drawtype = "nodebox",
@@ -24,8 +25,10 @@ minetest.register_node("mesecons_button:button_off", {
 	},
 	paramtype = "light",
 	paramtype2 = "facedir",
+	is_ground_content = false,
 	legacy_wallmounted = true,
 	walkable = false,
+	on_rotate = mesecon.buttonlike_onrotate,
 	sunlight_propagates = true,
 	selection_box = {
 	type = "fixed",
@@ -44,13 +47,14 @@ minetest.register_node("mesecons_button:button_off", {
 		minetest.swap_node(pos, {name = "mesecons_button:button_on", param2=node.param2})
 		mesecon.receptor_on(pos, mesecon.rules.buttonlike_get(node))
 		minetest.sound_play("mesecons_button_push", {pos=pos})
-		minetest.after(1, mesecon.button_turnoff, pos)
+		minetest.get_node_timer(pos):start(1)
 	end,
 	sounds = default.node_sound_stone_defaults(),
 	mesecons = {receptor = {
 		state = mesecon.state.off,
 		rules = mesecon.rules.buttonlike_get
-	}}
+	}},
+	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_node("mesecons_button:button_on", {
@@ -65,9 +69,11 @@ minetest.register_node("mesecons_button:button_on", {
 		},
 	paramtype = "light",
 	paramtype2 = "facedir",
+	is_ground_content = false,
 	legacy_wallmounted = true,
 	walkable = false,
-	light_source = default.LIGHT_MAX-7,
+	on_rotate = false,
+	light_source = minetest.LIGHT_MAX-7,
 	sunlight_propagates = true,
 	selection_box = {
 		type = "fixed",
@@ -87,7 +93,9 @@ minetest.register_node("mesecons_button:button_on", {
 	mesecons = {receptor = {
 		state = mesecon.state.on,
 		rules = mesecon.rules.buttonlike_get
-	}}
+	}},
+	on_timer = mesecon.button_turnoff,
+	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_craft({

mesecons_commandblock/doc/commandblock/description.html

@@ -1 +1,2 @@
 There is no crafting recipe as this should only be available for server admins. Quite similar to the Minecraft counterpart. Executes server commands.
+It works in inactive blocks.

mesecons_commandblock/init.lua

@@ -181,6 +181,7 @@ minetest.register_node("mesecons_commandblock:commandblock_off", {
 	description = "Command Block",
 	tiles = {"jeija_commandblock_off.png"},
 	inventory_image = minetest.inventorycube("jeija_commandblock_off.png"),
+	is_ground_content = false,
 	groups = {cracky=2, mesecon_effector_off=1},
 	on_construct = construct,
 	after_place_node = after_place,
@@ -189,11 +190,13 @@ minetest.register_node("mesecons_commandblock:commandblock_off", {
 	sounds = default.node_sound_stone_defaults(),
 	mesecons = {effector = {
 		action_on = commandblock_action_on
-	}}
+	}},
+	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_node("mesecons_commandblock:commandblock_on", {
 	tiles = {"jeija_commandblock_on.png"},
+	is_ground_content = false,
 	groups = {cracky=2, mesecon_effector_on=1, not_in_creative_inventory=1},
 	light_source = 10,
 	drop = "mesecons_commandblock:commandblock_off",
@@ -204,5 +207,6 @@ minetest.register_node("mesecons_commandblock:commandblock_on", {
 	sounds = default.node_sound_stone_defaults(),
 	mesecons = {effector = {
 		action_off = commandblock_action_off
-	}}
+	}},
+	on_blast = mesecon.on_blastnode,
 })

mesecons_delayer/doc/delayer/description.html

@@ -1 +1 @@
-The delayer delays the signal from the input for a determined time. The time can be set by punching the delayer. Possible delays are: 0.1 seconds, 0.3 seconds, 0.5 seconds and 1 second. You may try to use it for creating songs with the noteblock.
+The delayer delays the signal from the input for a determined time. The time can be set by punching the delayer. Possible delays are: 0.1 seconds, 0.3 seconds, 0.5 seconds and 1 second. You may try to use it for creating songs with the noteblock. It works in unloaded blocks.

mesecons_delayer/init.lua

@@ -47,7 +47,8 @@ elseif	i == 2 then delaytime = 0.3
 elseif	i == 3 then delaytime = 0.5
 elseif	i == 4 then delaytime = 1.0 end
 
-boxes = {{ -6/16, -8/16, -6/16, 6/16, -7/16, 6/16 },		-- the main slab
+local boxes = {
+	 { -6/16, -8/16, -6/16, 6/16, -7/16, 6/16 },		-- the main slab
 
 	 { -2/16, -7/16, -4/16, 2/16, -26/64, -3/16 },		-- the jeweled "on" indicator
 	 { -3/16, -7/16, -3/16, 3/16, -26/64, -2/16 },
@@ -57,7 +58,8 @@ boxes = {{ -6/16, -8/16, -6/16, 6/16, -7/16, 6/16 },		-- the main slab
 
 	 { -6/16, -7/16, -6/16, -4/16, -27/64, -4/16 },		-- the timer indicator
 	 { -8/16, -8/16, -1/16, -6/16, -7/16, 1/16 },		-- the two wire stubs
-	 { 6/16, -8/16, -1/16, 8/16, -7/16, 1/16 }}
+	 { 6/16, -8/16, -1/16, 8/16, -7/16, 1/16 }
+}
 
 minetest.register_node("mesecons_delayer:delayer_off_"..tostring(i), {
 	description = "Delayer",
@@ -85,7 +87,7 @@ minetest.register_node("mesecons_delayer:delayer_off_"..tostring(i), {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	sunlight_propagates = true,
-	is_ground_content = true,
+	is_ground_content = false,
 	drop = 'mesecons_delayer:delayer_off_1',
 	on_punch = function (pos, node)
 		if node.name=="mesecons_delayer:delayer_off_1" then
@@ -112,7 +114,8 @@ minetest.register_node("mesecons_delayer:delayer_off_"..tostring(i), {
 			rules = delayer_get_input_rules,
 			action_on = delayer_activate
 		}
-	}
+	},
+	on_blast = mesecon.on_blastnode,
 })
 
 
@@ -140,7 +143,7 @@ minetest.register_node("mesecons_delayer:delayer_on_"..tostring(i), {
 	paramtype = "light",
 	paramtype2 = "facedir",
 	sunlight_propagates = true,
-	is_ground_content = true,
+	is_ground_content = false,
 	drop = 'mesecons_delayer:delayer_off_1',
 	on_punch = function (pos, node)
 		if node.name=="mesecons_delayer:delayer_on_1" then
@@ -155,6 +158,7 @@ minetest.register_node("mesecons_delayer:delayer_on_"..tostring(i), {
 	end,
 	delayer_time = delaytime,
 	delayer_offstate = "mesecons_delayer:delayer_off_"..tostring(i),
+	sounds = default.node_sound_stone_defaults(),
 	mesecons = {
 		receptor =
 		{
@@ -166,7 +170,8 @@ minetest.register_node("mesecons_delayer:delayer_on_"..tostring(i), {
 			rules = delayer_get_input_rules,
 			action_off = delayer_deactivate
 		}
-	}
+	},
+	on_blast = mesecon.on_blastnode,
 })
 end
 

mesecons_detector/doc/nodedetector/description.html

@@ -1,6 +1,11 @@
 The node detector is a receptor. It changes its state when either any node
 or a specific node is detected. Right-click it to set a nodename to scan for.
-It can also receive digiline signals. You can either send "GET" and it will
+It can also receive digiline signals. For example, you can send
-respond with the detected nodename or you can send any other string and it will
+<code>{distance=4, scanname="default:dirt"}</code>
-set this string as the node to scan for.
+to set distance to 4 and scan for dirt. You can omit either parameter.
+There is also a command parameter: <code>{command="get"}</code> will respond
+with the detected nodename and <code>{command="scan"}</code> will respond with
+a boolean using the distance and nodename of the detector.
 Nodenames must include the mod they reside in, so for instance default:dirt, not just dirt.
+The distance parameter specifies how many blocks are between the node detector and the node to detect.
+Automatic scanning with Mesecons output only works when the detector is in an active block, but Digilines queries always work.

mesecons_detector/doc/objectdetector/description.html

@@ -1,3 +1,5 @@
 The object detector is a receptor. It changes its state when a player approaches.
 Right-click it to set a name to scan for.
+You can also search for comma-separated lists of players where the detector gets activated if any of the names in the list are found.
 It can also receive digiline signals which are the name to scan for on the specified channel in the right-click menu.
+Automatic scanning with Mesecons output only works when the detector is in an active block, but Digilines queries always work.

mesecons_detector/init.lua

@@ -5,15 +5,18 @@ local GET_COMMAND = "GET"
 -- The radius can be specified in mesecons/settings.lua
 
 local function object_detector_make_formspec(pos)
-	minetest.get_meta(pos):set_string("formspec", "size[9,2.5]" ..
+	local meta = minetest.get_meta(pos)
+	meta:set_string("formspec", "size[9,2.5]" ..
 		"field[0.3,  0;9,2;scanname;Name of player to scan for (empty for any):;${scanname}]"..
 		"field[0.3,1.5;4,2;digiline_channel;Digiline Channel (optional):;${digiline_channel}]"..
 		"button_exit[7,0.75;2,3;;Save]")
 end
 
-local function object_detector_on_receive_fields(pos, _, fields)
+local function object_detector_on_receive_fields(pos, formname, 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
+
 	local meta = minetest.get_meta(pos)
 	meta:set_string("scanname", fields.scanname)
 	meta:set_string("digiline_channel", fields.digiline_channel)
@@ -28,14 +31,17 @@ local function object_detector_scan(pos)
 	if next(objs) == nil then return false end
 
 	local scanname = minetest.get_meta(pos):get_string("scanname")
+	local scan_for = {}
+	for _, str in pairs(string.split(scanname:gsub(" ", ""), ",")) do
+		scan_for[str] = true
+	end
+
 	local every_player = scanname == ""
 	for _, obj in pairs(objs) do
 		-- "" is returned if it is not a player; "" ~= nil; so only handle objects with foundname ~= ""
 		local foundname = obj:get_player_name()
-
 		if foundname ~= "" then
-			-- return true if scanning for any player or if specific playername was detected
+			if every_player or scan_for[foundname] then
-			if scanname == "" or foundname == scanname then
 				return true
 			end
 		end
@@ -60,6 +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"},
 	paramtype = "light",
+	is_ground_content = false,
 	walkable = true,
 	groups = {cracky=3},
 	description="Player Detector",
@@ -70,12 +77,14 @@ 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(),
-	digiline = object_detector_digiline
+	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"},
 	paramtype = "light",
+	is_ground_content = false,
 	walkable = true,
 	groups = {cracky=3,not_in_creative_inventory=1},
 	drop = 'mesecons_detector:object_detector_off',
@@ -86,7 +95,8 @@ 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(),
-	digiline = object_detector_digiline
+	digiline = object_detector_digiline,
+	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_craft({
@@ -98,6 +108,15 @@ minetest.register_craft({
 	}
 })
 
+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"},
+	}
+})
+
 minetest.register_abm({
 	nodenames = {"mesecons_detector:object_detector_off"},
 	interval = 1,
@@ -128,17 +147,23 @@ minetest.register_abm({
 -- Detects the node in front of it
 
 local function node_detector_make_formspec(pos)
-	minetest.get_meta(pos):set_string("formspec", "size[9,2.5]" ..
+	local meta = minetest.get_meta(pos)
+	if meta:get_string("distance") == ""  then meta:set_string("distance", "0") end
+	meta:set_string("formspec", "size[9,2.5]" ..
 		"field[0.3,  0;9,2;scanname;Name of node to scan for (empty for any):;${scanname}]"..
-		"field[0.3,1.5;4,2;digiline_channel;Digiline Channel (optional):;${digiline_channel}]"..
+		"field[0.3,1.5;2.5,2;distance;Distance (0-"..mesecon.setting("node_detector_distance_max", 10).."):;${distance}]"..
+		"field[3,1.5;4,2;digiline_channel;Digiline Channel (optional):;${digiline_channel}]"..
 		"button_exit[7,0.75;2,3;;Save]")
 end
 
-local function node_detector_on_receive_fields(pos, _, fields)
+local function node_detector_on_receive_fields(pos, fieldname, 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
+
 	local meta = minetest.get_meta(pos)
 	meta:set_string("scanname", fields.scanname)
+	meta:set_string("distance", fields.distance or "0")
 	meta:set_string("digiline_channel", fields.digiline_channel)
 	node_detector_make_formspec(pos)
 end
@@ -148,32 +173,66 @@ local function node_detector_scan(pos)
 	local node = minetest.get_node_or_nil(pos)
 	if not node then return end
 
+	local meta = minetest.get_meta(pos)
+
+	local distance = meta:get_int("distance")
+	local distance_max = mesecon.setting("node_detector_distance_max", 10)
+	if distance < 0 then distance = 0 end
+	if distance > distance_max then distance = distance_max end
+
 	local frontname = minetest.get_node(
-		vector.subtract(pos, minetest.facedir_to_dir(node.param2))
+		vector.subtract(pos, vector.multiply(minetest.facedir_to_dir(node.param2), distance + 1))
 	).name
-	local scanname = minetest.get_meta(pos):get_string("scanname")
+	local scanname = meta:get_string("scanname")
 
 	return (frontname == scanname) or
 		(frontname ~= "air" and frontname ~= "ignore" and scanname == "")
 end
 
+local function node_detector_send_node_name(pos, node, channel, meta)
+	local distance = meta:get_int("distance")
+	local distance_max = mesecon.setting("node_detector_distance_max", 10)
+	if distance < 0 then distance = 0 end
+	if distance > distance_max then distance = distance_max end
+	local nodename = minetest.get_node(
+		vector.subtract(pos, vector.multiply(minetest.facedir_to_dir(node.param2), distance + 1))
+	).name
+
+	digiline:receptor_send(pos, digiline.rules.default, channel, nodename)
+end
+
 -- set player name when receiving a digiline signal on a specific channel
 local node_detector_digiline = {
 	effector = {
 		action = function(pos, node, channel, msg)
 			local meta = minetest.get_meta(pos)
+
 			if channel ~= meta:get_string("digiline_channel") then return end
 
+			if type(msg) == "table" then
+				if msg.distance or msg.scanname then
+					if msg.distance then
+						meta:set_string("distance", msg.distance)
+					end
+					if msg.scanname then
+						meta:set_string("scanname", msg.scanname)
+					end
+					node_detector_make_formspec(pos)
+				end
+				if msg.command == "get" then
+					node_detector_send_node_name(pos, node, channel, meta)
+				elseif msg.command == "scan" then
+					local result = node_detector_scan(pos)
+					digiline:receptor_send(pos, digiline.rules.default, channel, result)
+				end
+			else
 				if msg == GET_COMMAND then
-				local nodename = minetest.get_node(
+					node_detector_send_node_name(pos, node, channel, meta)
-					vector.subtract(pos, minetest.facedir_to_dir(node.param2))
-				).name
-
-				digiline:receptor_send(pos, digiline.rules.default, channel, nodename)
 				else
 					meta:set_string("scanname", msg)
 					node_detector_make_formspec(pos)
 				end
+			end
 		end,
 	},
 	receptor = {}
@@ -200,6 +259,7 @@ 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"},
 	paramtype = "light",
 	paramtype2 = "facedir",
+	is_ground_content = false,
 	walkable = true,
 	groups = {cracky=3},
 	description="Node Detector",
@@ -208,15 +268,16 @@ minetest.register_node("mesecons_detector:node_detector_off", {
 	}},
 	on_construct = node_detector_make_formspec,
 	on_receive_fields = node_detector_on_receive_fields,
-	after_place_node = after_place_node_detector,
 	sounds = default.node_sound_stone_defaults(),
-	digiline = node_detector_digiline
+	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"},
 	paramtype = "light",
 	paramtype2 = "facedir",
+	is_ground_content = false,
 	walkable = true,
 	groups = {cracky=3,not_in_creative_inventory=1},
 	drop = 'mesecons_detector:node_detector_off',
@@ -225,9 +286,9 @@ minetest.register_node("mesecons_detector:node_detector_on", {
 	}},
 	on_construct = node_detector_make_formspec,
 	on_receive_fields = node_detector_on_receive_fields,
-	after_place_node = after_place_node_detector,
 	sounds = default.node_sound_stone_defaults(),
-	digiline = node_detector_digiline
+	digiline = node_detector_digiline,
+	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_craft({
@@ -239,6 +300,15 @@ minetest.register_craft({
 	}
 })
 
+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"},
+	}
+})
+
 minetest.register_abm({
 	nodenames = {"mesecons_detector:node_detector_off"},
 	interval = 1,

mesecons_extrawires/corner.lua

@@ -1,12 +1,15 @@
+local screwdriver_exists = minetest.global_exists("screwdriver")
+
 local corner_nodebox = {
 	type = "fixed",
+	-- ±0.001 is to prevent z-fighting
 	fixed = {{ -16/32-0.001, -17/32, -3/32, 0, -13/32, 3/32 },
 		   { -3/32, -17/32, -16/32+0.001, 3/32, -13/32, 3/32}}
 }
 
 local corner_selectionbox = {
 		type = "fixed",
-		fixed = { -16/32-0.001, -18/32, -16/32, 5/32, -12/32, 5/32 },
+		fixed = { -16/32, -16/32, -16/32, 5/32, -12/32, 5/32 },
 }
 
 local corner_get_rules = function (node)
@@ -33,23 +36,27 @@ minetest.register_node("mesecons_extrawires:corner_on", {
 	},
 	paramtype = "light",
 	paramtype2 = "facedir",
+	is_ground_content = false,
 	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(),
 	mesecons = {conductor =
 	{
 		state = mesecon.state.on,
 		rules = corner_get_rules,
 		offstate = "mesecons_extrawires:corner_off"
-	}}
+	}},
+	on_blast = mesecon.on_blastnode,
+	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
 })
 
 minetest.register_node("mesecons_extrawires:corner_off", {
 	drawtype = "nodebox",
-	description = "Mesecon Corner",
+	description = "Insulated Mesecon Corner",
 	tiles = {
 		"jeija_insulated_wire_curved_tb_off.png",
 		"jeija_insulated_wire_curved_tb_off.png^[transformR270",
@@ -60,17 +67,21 @@ minetest.register_node("mesecons_extrawires:corner_off", {
 	},
 	paramtype = "light",
 	paramtype2 = "facedir",
+	is_ground_content = false,
 	walkable = false,
 	sunlight_propagates = true,
 	selection_box = corner_selectionbox,
 	node_box = corner_nodebox,
 	groups = {dig_immediate = 3},
+	sounds = default.node_sound_defaults(),
 	mesecons = {conductor =
 	{
 		state = mesecon.state.off,
 		rules = corner_get_rules,
 		onstate = "mesecons_extrawires:corner_on"
-	}}
+	}},
+	on_blast = mesecon.on_blastnode,
+	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
 })
 
 minetest.register_craft({

mesecons_extrawires/crossover.lua

@@ -1,4 +1,4 @@
-function crossover_get_rules(node)
+local function crossover_get_rules(node)
 	return {
 		{--first wire
 			{x=-1,y=0,z=0},
@@ -19,143 +19,110 @@ local crossover_states = {
 }
 
 minetest.register_node("mesecons_extrawires:crossover_off", {
-	description = "Insulated Crossover",
+	description = "Insulated Mesecon Crossover",
-	drawtype = "nodebox",
+	drawtype = "mesh",
+	mesh = "mesecons_extrawires_crossover.b3d",
 	tiles = {
-		"jeija_insulated_wire_crossing_tb_off.png",
+		"jeija_insulated_wire_ends_off.png",
-		"jeija_insulated_wire_crossing_tb_off.png",
+		"jeija_insulated_wire_sides_off.png",
+		"jeija_insulated_wire_sides_off.png",
 		"jeija_insulated_wire_ends_off.png"
 	},
 	paramtype = "light",
+	is_ground_content = false,
 	walkable = false,
 	stack_max = 99,
-	selection_box = {type="fixed", fixed={-16/32-0.0001, -18/32, -16/32-0.001, 16/32+0.001, -5/32, 16/32+0.001}},
+	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
-	node_box = {
-		type = "fixed",
-		fixed = {
-			{ -16/32-0.001, -17/32, -3/32, 16/32+0.001, -13/32, 3/32 },
-			{ -3/32, -17/32, -16/32-0.001, 3/32, -13/32, -6/32 },
-			{ -3/32, -13/32, -9/32, 3/32, -6/32, -6/32 },
-			{ -3/32, -9/32, -9/32, 3/32, -6/32, 9/32 },
-			{ -3/32, -13/32, 6/32, 3/32, -6/32, 9/32 },
-			{ -3/32, -17/32, 6/32, 3/32, -13/32, 16/32+0.001 },
-		},
-	},
 	groups = {dig_immediate=3, mesecon=3},
+	sounds = default.node_sound_defaults(),
 	mesecons = {
 		conductor = {
 			states = crossover_states,
 			rules = crossover_get_rules(),
 		}
 	},
+	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_node("mesecons_extrawires:crossover_01", {
 	description = "You hacker you!",
 	drop = "mesecons_extrawires:crossover_off",
-	drawtype = "nodebox",
+	drawtype = "mesh",
+	mesh = "mesecons_extrawires_crossover.b3d",
 	tiles = {
-		"jeija_insulated_wire_crossing_tb_01.png",
+		"jeija_insulated_wire_ends_on.png",
-		"jeija_insulated_wire_crossing_tb_01.png",
+		"jeija_insulated_wire_sides_on.png",
-		"jeija_insulated_wire_ends_01x.png",
+		"jeija_insulated_wire_sides_off.png",
-		"jeija_insulated_wire_ends_01x.png",
+		"jeija_insulated_wire_ends_off.png"
-		"jeija_insulated_wire_ends_01z.png",
-		"jeija_insulated_wire_ends_01z.png"
 	},
 	paramtype = "light",
+	is_ground_content = false,
 	walkable = false,
 	stack_max = 99,
-	selection_box = {type="fixed", fixed={-16/32-0.0001, -18/32, -16/32-0.001, 16/32+0.001, -5/32, 16/32+0.001}},
+	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
-	node_box = {
-		type = "fixed",
-		fixed = {
-			{ -16/32-0.001, -17/32, -3/32, 16/32+0.001, -13/32, 3/32 },
-			{ -3/32, -17/32, -16/32-0.001, 3/32, -13/32, -6/32 },
-			{ -3/32, -13/32, -9/32, 3/32, -6/32, -6/32 },
-			{ -3/32, -9/32, -9/32, 3/32, -6/32, 9/32 },
-			{ -3/32, -13/32, 6/32, 3/32, -6/32, 9/32 },
-			{ -3/32, -17/32, 6/32, 3/32, -13/32, 16/32+0.001 },
-		},
-	},
 	groups = {dig_immediate=3, mesecon=3, not_in_creative_inventory=1},
+	sounds = default.node_sound_defaults(),
 	mesecons = {
 		conductor = {
 			states = crossover_states,
 			rules = crossover_get_rules(),
 		}
 	},
+	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_node("mesecons_extrawires:crossover_10", {
 	description = "You hacker you!",
 	drop = "mesecons_extrawires:crossover_off",
-	drawtype = "nodebox",
+	drawtype = "mesh",
+	mesh = "mesecons_extrawires_crossover.b3d",
 	tiles = {
-		"jeija_insulated_wire_crossing_tb_10.png",
+		"jeija_insulated_wire_ends_off.png",
-		"jeija_insulated_wire_crossing_tb_10.png",
+		"jeija_insulated_wire_sides_off.png",
-		"jeija_insulated_wire_ends_10x.png",
+		"jeija_insulated_wire_sides_on.png",
-		"jeija_insulated_wire_ends_10x.png",
+		"jeija_insulated_wire_ends_on.png"
-		"jeija_insulated_wire_ends_10z.png",
-		"jeija_insulated_wire_ends_10z.png"
 	},
 	paramtype = "light",
+	is_ground_content = false,
 	walkable = false,
 	stack_max = 99,
-	selection_box = {type="fixed", fixed={-16/32-0.0001, -18/32, -16/32-0.001, 16/32+0.001, -5/32, 16/32+0.001}},
+	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
-	node_box = {
-		type = "fixed",
-		fixed = {
-			{ -16/32-0.001, -17/32, -3/32, 16/32+0.001, -13/32, 3/32 },
-			{ -3/32, -17/32, -16/32-0.001, 3/32, -13/32, -6/32 },
-			{ -3/32, -13/32, -9/32, 3/32, -6/32, -6/32 },
-			{ -3/32, -9/32, -9/32, 3/32, -6/32, 9/32 },
-			{ -3/32, -13/32, 6/32, 3/32, -6/32, 9/32 },
-			{ -3/32, -17/32, 6/32, 3/32, -13/32, 16/32+0.001 },
-		},
-	},
 	groups = {dig_immediate=3, mesecon=3, not_in_creative_inventory=1},
+	sounds = default.node_sound_defaults(),
 	mesecons = {
 		conductor = {
 			states = crossover_states,
 			rules = crossover_get_rules(),
 		}
 	},
+	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_node("mesecons_extrawires:crossover_on", {
 	description = "You hacker you!",
 	drop = "mesecons_extrawires:crossover_off",
-	drawtype = "nodebox",
+	drawtype = "mesh",
+	mesh = "mesecons_extrawires_crossover.b3d",
 	tiles = {
-		"jeija_insulated_wire_crossing_tb_on.png",
-		"jeija_insulated_wire_crossing_tb_on.png",
-		"jeija_insulated_wire_ends_on.png",
-		"jeija_insulated_wire_ends_on.png",
 		"jeija_insulated_wire_ends_on.png",
+		"jeija_insulated_wire_sides_on.png",
+		"jeija_insulated_wire_sides_on.png",
 		"jeija_insulated_wire_ends_on.png"
 	},
 	paramtype = "light",
+	is_ground_content = false,
 	walkable = false,
 	stack_max = 99,
-	selection_box = {type="fixed", fixed={-16/32-0.0001, -18/32, -16/32-0.001, 16/32+0.001, -5/32, 16/32+0.001}},
+	selection_box = {type="fixed", fixed={-16/32, -16/32, -16/32, 16/32, -5/32, 16/32}},
-	node_box = {
-		type = "fixed",
-		fixed = {
-			{ -16/32-0.001, -17/32, -3/32, 16/32+0.001, -13/32, 3/32 },
-			{ -3/32, -17/32, -16/32-0.001, 3/32, -13/32, -6/32 },
-			{ -3/32, -13/32, -9/32, 3/32, -6/32, -6/32 },
-			{ -3/32, -9/32, -9/32, 3/32, -6/32, 9/32 },
-			{ -3/32, -13/32, 6/32, 3/32, -6/32, 9/32 },
-			{ -3/32, -17/32, 6/32, 3/32, -13/32, 16/32+0.001 },
-		},
-	},
 	groups = {dig_immediate=3, mesecon=3, not_in_creative_inventory=1},
+	sounds = default.node_sound_defaults(),
 	mesecons = {
 		conductor = {
 			states = crossover_states,
 			rules = crossover_get_rules(),
 		}
 	},
+	on_blast = mesecon.on_blastnode,
 })
 
 minetest.register_craft({

mesecons_extrawires/depends.txt

@@ -1,2 +1,3 @@
 default
 mesecons
+screwdriver?

mesecons_extrawires/doc/corner/description.html

@@ -1 +1 @@
-Insulated corners are conductors that only conduct between the inputs (also not up or down). When placing they always point to the left in direction of your vision.
+Insulated corners are conductors that only conduct between the inputs (also not up or down). When placing they always point to the left in direction of your vision. Like uninsulated wires, they work through unloaded blocks.

mesecons_extrawires/doc/crossing/description.html

@@ -1 +1 @@
-Insulated crossing are conductors that conduct two signals between the opposing sides, the signals are insulated to each other.
+Insulated crossing are conductors that conduct two signals between the opposing sides, the signals are insulated to each other. Like uninsulated wires, they work through unloaded blocks.

mesecons_extrawires/doc/mese/description.html

@@ -1 +1 @@
-The basic prerequesite for mesecons, can be crafted into wires and other stuff. Have a look at the <a href="http://wiki.minetest.net/Mese">Minetest Wiki</a> for more information. Mese is a conductor. It conducts in all six directions: Up/Down/Left/Right/Forward/Backward
+The basic prerequesite for mesecons, can be crafted into wires and other stuff. Have a look at the <a href="http://wiki.minetest.net/Mese">Minetest Wiki</a> for more information. Mese is a conductor. It conducts in all six directions: Up/Down/Left/Right/Forward/Backward. Like horizontal wires, Mese conduction works through unloaded blocks.

mesecons_extrawires/doc/tjunction/description.html

@@ -1 +1 @@
-Insulated T-Junctions are conductors that only conduct between the inputs (also not up or down).
+Insulated T-Junctions are conductors that only conduct between the inputs (also not up or down). Like uninsulated wires, they work through unloaded blocks.

mesecons_extrawires/doc/vertical/description.html

@@ -1 +1 @@
-Vertical Mesecons only conduct up and down. Plates appear at the ends, at that place they also conduct to the side.
+Vertical Mesecons only conduct up and down. Plates appear at the ends, at that place they also conduct to the side. Like horizontal wires, they work through unloaded blocks.

mesecons_extrawires/mesewire.lua

@@ -26,7 +26,8 @@ local powered_def = mesecon.mergetable(minetest.registered_nodes["default:mese"]
 		offstate = "default:mese",
 		rules = mesewire_rules
 	}},
-	groups = {cracky = 1, not_in_creative_inventory = 1}
+	groups = {cracky = 1, not_in_creative_inventory = 1},
+	on_blast = mesecon.on_blastnode,
 })
 
 for i, v in pairs(powered_def.tiles) do

mesecons_extrawires/tjunction.lua

@@ -1,12 +1,15 @@
+local screwdriver_exists = minetest.global_exists("screwdriver")
+
 local tjunction_nodebox = {
 	type = "fixed",
+	-- ±0.001 is to prevent z-fighting
 	fixed = {{ -16/32-0.001, -17/32, -3/32, 16/32+0.001, -13/32, 3/32 },
 		 { -3/32, -17/32, -16/32+0.001, 3/32, -13/32, -3/32},}
 }
 
 local tjunction_selectionbox = {
 		type = "fixed",
-		fixed = { -16/32-0.001, -18/32, -16/32, 16/32+0.001, -12/32, 7/32 },
+		fixed = { -16/32, -16/32, -16/32, 16/32, -12/32, 7/32 },
 }
 
 local tjunction_get_rules = function (node)
@@ -34,23 +37,27 @@ minetest.register_node("mesecons_extrawires:tjunction_on", {
 	},
 	paramtype = "light",
 	paramtype2 = "facedir",
+	is_ground_content = false,
 	walkable = false,
 	sunlight_propagates = true,
 	selection_box = tjunction_selectionbox,
 	node_box = tjunction_nodebox,
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
 	drop = "mesecons_extrawires:tjunction_off",
+	sounds = default.node_sound_defaults(),
 	mesecons = {conductor =
 	{
 		state = mesecon.state.on,
 		rules = tjunction_get_rules,
 		offstate = "mesecons_extrawires:tjunction_off"
-	}}
+	}},
+	on_blast = mesecon.on_blastnode,
+	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
 })
 
 minetest.register_node("mesecons_extrawires:tjunction_off", {
 	drawtype = "nodebox",
-	description = "T-junction",
+	description = "Insulated Mesecon T-junction",
 	tiles = {
 		"jeija_insulated_wire_tjunction_tb_off.png",
 		"jeija_insulated_wire_tjunction_tb_off.png^[transformR180",
@@ -61,17 +68,21 @@ minetest.register_node("mesecons_extrawires:tjunction_off", {
 	},
 	paramtype = "light",
 	paramtype2 = "facedir",
+	is_ground_content = false,
 	walkable = false,
 	sunlight_propagates = true,
 	selection_box = tjunction_selectionbox,
 	node_box = tjunction_nodebox,
 	groups = {dig_immediate = 3},
+	sounds = default.node_sound_defaults(),
 	mesecons = {conductor =
 	{
 		state = mesecon.state.off,
 		rules = tjunction_get_rules,
 		onstate = "mesecons_extrawires:tjunction_on"
-	}}
+	}},
+	on_blast = mesecon.on_blastnode,
+	on_rotate = screwdriver_exists and screwdriver.rotate_simple,
 })
 
 minetest.register_craft({

mesecons_extrawires/vertical.lua

@@ -77,17 +77,19 @@ end
 
 -- Vertical wire
 mesecon.register_node("mesecons_extrawires:vertical", {
-	description = "Vertical mesecon",
+	description = "Vertical Mesecon",
 	drawtype = "nodebox",
 	walkable = false,
 	paramtype = "light",
+	is_ground_content = false,
 	sunlight_propagates = true,
 	selection_box = vertical_box,
 	node_box = vertical_box,
 	is_vertical_conductor = true,
 	drop = "mesecons_extrawires:vertical_off",
 	after_place_node = vertical_update,
-	after_dig_node = vertical_update
+	after_dig_node = vertical_update,
+	sounds = default.node_sound_defaults(),
 },{
 	tiles = {"mesecons_wire_off.png"},
 	groups = {dig_immediate=3},
@@ -112,6 +114,7 @@ mesecon.register_node("mesecons_extrawires:vertical_top", {
 	drawtype = "nodebox",
 	walkable = false,
 	paramtype = "light",
+	is_ground_content = false,
 	sunlight_propagates = true,
 	groups = {dig_immediate=3, not_in_creative_inventory=1},
 	selection_box = top_box,
@@ -119,7 +122,8 @@ mesecon.register_node("mesecons_extrawires:vertical_top", {
 	is_vertical_conductor = true,
 	drop = "mesecons_extrawires:vertical_off",
 	after_place_node = vertical_update,
-	after_dig_node = vertical_update
+	after_dig_node = vertical_update,
+	sounds = default.node_sound_defaults(),
 },{
 	tiles = {"mesecons_wire_off.png"},
 	mesecons = {conductor = {
@@ -142,6 +146,7 @@ mesecon.register_node("mesecons_extrawires:vertical_bottom", {
 	drawtype = "nodebox",
 	walkable = false,
 	paramtype = "light",
+	is_ground_content = false,
 	sunlight_propagates = true,
 	groups = {dig_immediate = 3, not_in_creative_inventory = 1},
 	selection_box = bottom_box,
@@ -149,7 +154,8 @@ mesecon.register_node("mesecons_extrawires:vertical_bottom", {
 	is_vertical_conductor = true,
 	drop = "mesecons_extrawires:vertical_off",
 	after_place_node = vertical_update,
-	after_dig_node = vertical_update
+	after_dig_node = vertical_update,
+	sounds = default.node_sound_defaults(),
 },{
 	tiles = {"mesecons_wire_off.png"},
 	mesecons = {conductor = {

mesecons_fpga/depends.txt

@@ -0,0 +1,2 @@
+mesecons
+screwdriver?

mesecons_fpga/doc/fpga/description.html

@@ -0,0 +1,6 @@
+FPGAs can be used to chain multiple logic gates together in a compact manner.
+They come with 4 I/O ports and 10 internal registers,
+which can then be connected with each other to form logic circuits.
+They work fine in unloaded blocks.<br />
+Supported gate types: <b>AND</b>, <b>OR</b>, <b>NOT</b>, <b>XOR</b>, <b>NAND</b>, <b>XNOR</b>, <b>Buffer</b> (=)<br />
+I/O ports: <b>A B C D</b>; Registers: numbered <b>0</b> to <b>9</b>

mesecons_fpga/doc/programmer/description.html

@@ -0,0 +1,3 @@
+The FPGA programmer can be used to copy gate configurations from one FPGA to another.<br />
+Shift+Right-Click an FPGA to read its configuration and "remember" it.
+Left-click (punch) FPGAs to write the saved configuration to them.