Add node detector blacklist api

NaN can cause problems (and errors) if the receiving node doesn't check for it, this PR makes it so NaN values are removed from digiline messages.

.github/workflows/check-release.yml

@@ -13,3 +13,29 @@ jobs:
       run: luarocks install --local luacheck
     - name: luacheck run
       run: $HOME/.luarocks/bin/luacheck ./
+
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@main
+    - name: apt
+      run: sudo apt-get install -y luarocks
+    - name: busted install
+      run: luarocks install --local busted
+    - name: luacov install
+      run: luarocks install --local luacov
+    - name: mineunit install
+      run: luarocks install --server=https://luarocks.org/dev --local mineunit
+    - name: run mesecons tests
+      working-directory: ./mesecons/
+      run: $HOME/.luarocks/bin/mineunit -q
+    - name: run mesecons_mvps tests
+      working-directory: ./mesecons_mvps/
+      run: $HOME/.luarocks/bin/mineunit -q
+    - name: run mesecons_fpga tests
+      working-directory: ./mesecons_fpga/
+      run: $HOME/.luarocks/bin/mineunit -q
+    - name: run mesecons_luacontroller tests
+      working-directory: ./mesecons_luacontroller/
+      run: $HOME/.luarocks/bin/mineunit -q

.luacheckrc

@@ -34,3 +34,26 @@ globals = {"mesecon"}
 files["mesecons/actionqueue.lua"] = {
 	globals = {"minetest.registered_globalsteps"},
 }
+
+-- Test-specific stuff follows.
+
+local test_conf = {
+	read_globals = {
+		"assert",
+		"fixture",
+		"mineunit",
+		"Player",
+		"sourcefile",
+		"world",
+	},
+}
+files["*/spec/*.lua"] = test_conf
+files[".test_fixtures/*.lua"] = test_conf
+
+files[".test_fixtures/screwdriver.lua"] = {
+	globals = {"screwdriver"},
+}
+
+files[".test_fixtures/mesecons_fpga.lua"] = {
+	globals = {"minetest.register_on_player_receive_fields"},
+}

.test_fixtures/mesecons.lua

@@ -0,0 +1,156 @@
+mineunit("core")
+mineunit("server")
+mineunit("voxelmanip")
+
+mineunit:set_current_modname("mesecons")
+mineunit:set_modpath("mesecons", "../mesecons")
+sourcefile("../mesecons/init")
+
+-- Utility node: this conductor is used to test the connectivity and state of adjacent wires.
+do
+	local off_spec = {conductor = {
+		state = mesecon.state.off,
+		rules = mesecon.rules.alldirs,
+		onstate = "mesecons:test_conductor_on",
+	}}
+	local on_spec = {conductor = {
+		state = mesecon.state.on,
+		rules = mesecon.rules.alldirs,
+		offstate = "mesecons:test_conductor_off",
+	}}
+	mesecon.register_node("mesecons:test_conductor", {
+		description = "Test Conductor",
+	}, {mesecons = off_spec}, {mesecons = on_spec})
+end
+
+-- Utility node: this receptor is used to test power sources.
+do
+	local off_spec = {receptor = {
+		state = mesecon.state.off,
+		rules = mesecon.rules.alldirs,
+	}}
+	local on_spec = {receptor = {
+		state = mesecon.state.on,
+		rules = mesecon.rules.alldirs,
+	}}
+	mesecon.register_node("mesecons:test_receptor", {
+		description = "Test Receptor",
+	}, {mesecons = off_spec}, {mesecons = on_spec})
+end
+
+-- Utility node: this effector is used to test circuit outputs.
+do
+	-- This is a list of actions in the form {<kind>, <pos>},
+	-- where <kind> is "on", "off", or "overheat".
+	mesecon._test_effector_events = {}
+	local function action_on(pos, node)
+		table.insert(mesecon._test_effector_events, {"on", pos})
+		node.param2 = node.param2 % 64 + 128 -- Turn on bit 7
+		minetest.swap_node(pos, node)
+	end
+	local function action_off(pos, node)
+		table.insert(mesecon._test_effector_events, {"off", pos})
+		node.param2 = node.param2 % 64 -- Turn off bit 7
+		minetest.swap_node(pos, node)
+	end
+	local function action_change(pos, node, rule_name, new_state)
+		if mesecon.do_overheat(pos) then
+			table.insert(mesecon._test_effector_events, {"overheat", pos})
+			minetest.remove_node(pos)
+			return
+		end
+		-- Set the value of a bit in param2 according to the rule name and new state.
+		local bit = tonumber(rule_name.name, 2)
+		local bits_above = node.param2 - node.param2 % (bit * 2)
+		local bits_below = node.param2 % bit
+		local bits_flipped = new_state == mesecon.state.on and bit or 0
+		node.param2 = bits_above + bits_flipped + bits_below
+		minetest.swap_node(pos, node)
+	end
+	minetest.register_node("mesecons:test_effector", {
+		description = "Test Effector",
+		mesecons = {effector = {
+			action_on = action_on,
+			action_off = action_off,
+			action_change = action_change,
+			rules = {
+				{x =  1, y =  0, z =  0, name = "000001"},
+				{x = -1, y =  0, z =  0, name = "000010"},
+				{x =  0, y =  1, z =  0, name = "000100"},
+				{x =  0, y = -1, z =  0, name = "001000"},
+				{x =  0, y =  0, z =  1, name = "010000"},
+				{x =  0, y =  0, z = -1, name = "100000"},
+			}
+		}},
+	})
+end
+
+-- Utility node: this conductor is used to test rotation.
+do
+	local get_rules = mesecon.horiz_rules_getter({{x = 1, y = 0, z = 0}, {x = -1, y = 0, z = 0}})
+	local off_spec = {conductor = {
+		state = mesecon.state.off,
+		rules = get_rules,
+		onstate = "mesecons:test_conductor_rot_on",
+	}}
+	local on_spec = {conductor = {
+		state = mesecon.state.on,
+		rules = get_rules,
+		offstate = "mesecons:test_conductor_rot_off",
+	}}
+	mesecon.register_node("mesecons:test_conductor_rot", {
+		description = "Rotatable Test Conductor",
+		on_rotate = mesecon.on_rotate_horiz,
+	}, {mesecons = off_spec}, {mesecons = on_spec})
+end
+
+-- Utility node: this is used to test multiple conductors within a single node.
+do
+	local mesecons_spec = {conductor = {
+		rules = {
+			{{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 = -1, y = 0, z = 0}},
+		},
+		states = {
+			"mesecons:test_multiconductor_off", "mesecons:test_multiconductor_001",
+			"mesecons:test_multiconductor_010", "mesecons:test_multiconductor_011",
+			"mesecons:test_multiconductor_100", "mesecons:test_multiconductor_101",
+			"mesecons:test_multiconductor_110", "mesecons:test_multiconductor_on",
+		},
+	}}
+	for _, state in ipairs(mesecons_spec.conductor.states) do
+		minetest.register_node(state, {
+			description = "Test Multiconductor",
+			mesecons = mesecons_spec,
+		})
+	end
+end
+
+mesecon._test_autoconnects = {}
+mesecon.register_autoconnect_hook("test", function(pos, node)
+	table.insert(mesecon._test_autoconnects, {pos, node})
+end)
+
+function mesecon._test_dig(pos)
+	local node = minetest.get_node(pos)
+	minetest.remove_node(pos)
+	mesecon.on_dignode(pos, node)
+end
+
+function mesecon._test_place(pos, node)
+	world.set_node(pos, node)
+	mesecon.on_placenode(pos, minetest.get_node(pos))
+end
+
+function mesecon._test_reset()
+	-- First let circuits settle by simulating many globalsteps.
+	for i = 1, 10 do
+		mineunit:execute_globalstep(60)
+	end
+	mesecon.queue.actions = {}
+	mesecon._test_effector_events = {}
+	mesecon._test_autoconnects = {}
+end
+
+mineunit:execute_globalstep(mesecon.setting("resumetime", 4) + 1)

.test_fixtures/mesecons_fpga.lua

@@ -0,0 +1,59 @@
+mineunit("player")
+
+fixture("mesecons")
+fixture("mesecons_gamecompat")
+
+local registered_on_player_receive_fields = {}
+local old_register_on_player_receive_fields = minetest.register_on_player_receive_fields
+function minetest.register_on_player_receive_fields(func)
+	old_register_on_player_receive_fields(func)
+	table.insert(registered_on_player_receive_fields, func)
+end
+
+mineunit:set_current_modname("mesecons_fpga")
+mineunit:set_modpath("mesecons_fpga", "../mesecons_fpga")
+sourcefile("../mesecons_fpga/init")
+
+local fpga_user = Player("mesecons_fpga_user")
+
+function mesecon._test_program_fpga(pos, program)
+	local node = minetest.get_node(pos)
+	assert.equal("mesecons_fpga:fpga", node.name:sub(1, 18))
+
+	local fields = {program = true}
+	for i, instr in ipairs(program) do
+		-- Translate the instruction into formspec fields.
+		local op1, act, op2, dst
+		if #instr == 3 then
+			act, op2, dst = unpack(instr)
+		else
+			assert.equal(4, #instr)
+			op1, act, op2, dst = unpack(instr)
+		end
+		fields[i .. "op1"] = op1
+		fields[i .. "act"] = (" "):rep(4 - #act) .. act
+		fields[i .. "op2"] = op2
+		fields[i .. "dst"] = dst
+	end
+
+	minetest.registered_nodes[node.name].on_rightclick(pos, node, fpga_user)
+
+	for _, func in ipairs(registered_on_player_receive_fields) do
+		if func(fpga_user, "mesecons:fpga", fields) then
+			break
+		end
+	end
+end
+
+function mesecon._test_copy_fpga_program(pos)
+	fpga_user:get_inventory():set_stack("main", 1, "mesecons_fpga:programmer")
+	local pt = {type = "node", under = vector.new(pos), above = vector.offset(pos, 0, 1, 0)}
+	fpga_user:do_place(pt)
+	return fpga_user:get_wielded_item()
+end
+
+function mesecon._test_paste_fpga_program(pos, tool)
+	fpga_user:get_inventory():set_stack("main", 1, tool)
+	local pt = {type = "node", under = vector.new(pos), above = vector.offset(pos, 0, 1, 0)}
+	fpga_user:do_use(pt)
+end

.test_fixtures/mesecons_gamecompat.lua

@@ -0,0 +1,5 @@
+fixture("mesecons")
+
+mineunit:set_current_modname("mesecons_gamecompat")
+mineunit:set_modpath("mesecons_gamecompat", "../mesecons_gamecompat")
+sourcefile("../mesecons_gamecompat/init")

.test_fixtures/mesecons_luacontroller.lua

@@ -0,0 +1,12 @@
+fixture("mesecons")
+fixture("mesecons_gamecompat")
+
+mineunit:set_current_modname("mesecons_luacontroller")
+mineunit:set_modpath("mesecons_luacontroller", "../mesecons_luacontroller")
+sourcefile("../mesecons_luacontroller/init")
+
+function mesecon._test_program_luac(pos, code)
+	local node = minetest.get_node(pos)
+	assert.equal("mesecons_luacontroller:luacontroller", node.name:sub(1, 36))
+	return minetest.registered_nodes[node.name].mesecons.luacontroller.set_program(pos, code)
+end

.test_fixtures/mesecons_mvps.lua

@@ -0,0 +1,45 @@
+mineunit("protection")
+
+fixture("mesecons")
+
+mineunit:set_current_modname("mesecons_mvps")
+mineunit:set_modpath("mesecons_mvps", "../mesecons_mvps")
+sourcefile("../mesecons_mvps/init")
+
+minetest.register_node("mesecons_mvps:test_stopper", {
+	description = "Test Stopper",
+})
+mesecon.register_mvps_stopper("mesecons_mvps:test_stopper")
+
+minetest.register_node("mesecons_mvps:test_stopper_cond", {
+	description = "Test Stopper (Conditional)",
+})
+mesecon.register_mvps_stopper("mesecons_mvps:test_stopper_cond", function(node)
+	return node.param2 == 0
+end)
+
+minetest.register_node("mesecons_mvps:test_sticky", {
+	description = "Test Sticky",
+	mvps_sticky = function(pos)
+		local connected = {}
+		for i, rule in ipairs(mesecon.rules.alldirs) do
+			connected[i] = vector.add(pos, rule)
+		end
+		return connected
+	end,
+})
+
+mesecon._test_moves = {}
+minetest.register_node("mesecons_mvps:test_on_move", {
+	description = "Test Moveable",
+	mesecon = {
+		on_mvps_move = function(pos, node, oldpos, meta)
+			table.insert(mesecon._test_moves, {pos, node, oldpos, meta})
+		end
+	},
+})
+local old_reset = mesecon._test_reset
+function mesecon._test_reset()
+	mesecon._test_moves = {}
+	old_reset()
+end

.test_fixtures/screwdriver.lua

@@ -0,0 +1,6 @@
+mineunit:set_current_modname("screwdriver")
+
+screwdriver = {}
+
+screwdriver.ROTATE_FACE = 1
+screwdriver.ROTATE_AXIS = 2

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

mesecons/init.lua

@@ -99,7 +99,6 @@ mesecon.queue:add_function("receptor_off", function (pos, rules)
 		local rulenames = mesecon.rules_link_rule_all(pos, rule)
 		for _, rulename in ipairs(rulenames) do
 			mesecon.vm_begin()
-			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
@@ -118,8 +117,6 @@ function mesecon.receptor_off(pos, rules)
 end
 
 
-print("[OK] Mesecons")
-
 -- Deprecated stuff
 -- To be removed in future releases
 dofile(minetest.get_modpath("mesecons").."/legacy.lua");

mesecons/internal.lua

@@ -46,31 +46,23 @@
 -- mesecon.rotate_rules_down(rules)
 -- These functions return rules that have been rotated in the specific direction
 
-local fifo_queue = dofile(minetest.get_modpath("mesecons").."/fifo_queue.lua")
+-- 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]
+	local def = minetest.registered_nodes[nodename]
-	and minetest.registered_nodes[nodename].mesecons
+	return def and def.mesecons and def.mesecons.effector
-	and minetest.registered_nodes[nodename].mesecons.effector then
-		return minetest.registered_nodes[nodename].mesecons.effector
-	end
 end
 
 function mesecon.get_receptor(nodename)
-	if  minetest.registered_nodes[nodename]
+	local def = minetest.registered_nodes[nodename]
-	and minetest.registered_nodes[nodename].mesecons
+	return def and def.mesecons and def.mesecons.receptor
-	and minetest.registered_nodes[nodename].mesecons.receptor then
-		return minetest.registered_nodes[nodename].mesecons.receptor
-	end
 end
 
 function mesecon.get_conductor(nodename)
-	if  minetest.registered_nodes[nodename]
+	local def = minetest.registered_nodes[nodename]
-	and minetest.registered_nodes[nodename].mesecons
+	return def and def.mesecons and def.mesecons.conductor
-	and minetest.registered_nodes[nodename].mesecons.conductor then
-		return minetest.registered_nodes[nodename].mesecons.conductor
-	end
 end
 
 function mesecon.get_any_outputrules(node)
@@ -421,7 +413,7 @@ end
 function mesecon.turnon(pos, link)
 	find_light_update_conductors()
 
-	local frontiers = fifo_queue.new()
+	local frontiers = mesecon.fifo_queue.new()
 	frontiers:add({pos = pos, link = link})
 	local pos_can_be_skipped = {}
 
@@ -484,7 +476,7 @@ end
 function mesecon.turnoff(pos, link)
 	find_light_update_conductors()
 
-	local frontiers = fifo_queue.new()
+	local frontiers = mesecon.fifo_queue.new()
 	frontiers:add({pos = pos, link = link})
 	local signals = {}
 	local pos_can_be_skipped = {}
@@ -541,9 +533,12 @@ function mesecon.turnoff(pos, link)
 	end
 
 	for _, sig in ipairs(signals) do
-		mesecon.changesignal(sig.pos, sig.node, sig.link, mesecon.state.off, sig.depth)
+		-- If sig.depth is 1, it has not yet been checked that the power source is actually off.
-		if mesecon.is_effector_on(sig.node.name) and not mesecon.is_powered(sig.pos) then
+		if sig.depth > 1 or not mesecon.is_powered(sig.pos, sig.link) then
-			mesecon.deactivate(sig.pos, sig.node, sig.link, sig.depth)
+			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
 	end
 

mesecons/locale/mesecons.de.tr

@@ -0,0 +1,3 @@
+# textdomain: mesecons
+
+Mesecons=Mesecons

mesecons/locale/mesecons.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons
+
+### oldwires.lua ###
+Mesecons=Mesekonduktilo

mesecons/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons
+
+### oldwires.lua ###
+Mesecons=

mesecons/oldwires.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 minetest.register_node("mesecons:mesecon_off", {
 	drawtype = "raillike",
 	tiles = {"jeija_mesecon_off.png", "jeija_mesecon_curved_off.png", "jeija_mesecon_t_junction_off.png", "jeija_mesecon_crossing_off.png"},
@@ -11,7 +13,7 @@ minetest.register_node("mesecons:mesecon_off", {
 		fixed = {-0.5, -0.5, -0.5, 0.5, -0.45, 0.5},
 	},
 	groups = {dig_immediate=3, mesecon=1, mesecon_conductor_craftable=1},
-	description="Mesecons",
+	description= S("Mesecons"),
 	mesecons = {conductor={
 		state = mesecon.state.off,
 		onstate = "mesecons:mesecon_on"

mesecons/presets.lua

@@ -64,6 +64,8 @@ local rules_buttonlike = {
 }
 
 local function rules_from_dir(ruleset, dir)
+	if not dir then return {} end
+
 	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

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
+			mesecon.vm_begin()
-			-- conductors will be activated (when pushing an on-conductor with a piston)
 			for _, s in ipairs(sources) do
 				local rule = vector.subtract(s, pos)
 				mesecon.turnon(pos, rule)
 			end
-			--mesecon.receptor_on (pos, mesecon.conductor_get_rules(node))
+			mesecon.vm_commit()
-		elseif mesecon.is_conductor_on(node) then
-			node.name = mesecon.get_conductor_off(node)
-			minetest.swap_node(pos, node)
 		end
 	end
 

mesecons/spec/action_spec.lua

@@ -0,0 +1,62 @@
+require("mineunit")
+
+fixture("mesecons")
+
+describe("action queue", function()
+	local layout = {
+		{{x =  1, y = 0, z = 0}, "mesecons:test_receptor_off"},
+		{{x =  0, y = 0, z = 0}, "mesecons:test_conductor_off"},
+		{{x = -1, y = 0, z = 0}, "mesecons:test_conductor_off"},
+		{{x =  0, y = 1, z = 0}, "mesecons:test_effector"},
+		{{x = -1, y = 1, z = 0}, "mesecons:test_effector"},
+	}
+
+	before_each(function()
+		world.layout(layout)
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("executes in order", function()
+		world.set_node(layout[1][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[1][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal(2, #mesecon._test_effector_events)
+		assert.same({"on", layout[4][1]}, mesecon._test_effector_events[1])
+		assert.same({"on", layout[5][1]}, mesecon._test_effector_events[2])
+
+		world.set_node(layout[1][1], "mesecons:test_receptor_off")
+		mesecon.receptor_off(layout[1][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		assert.equal(4, #mesecon._test_effector_events)
+		assert.same({"off", layout[4][1]}, mesecon._test_effector_events[3])
+		assert.same({"off", layout[5][1]}, mesecon._test_effector_events[4])
+	end)
+
+	it("discards outdated/overwritten node events", function()
+		world.set_node(layout[1][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[1][1], mesecon.rules.alldirs)
+		world.set_node(layout[1][1], "mesecons:test_receptor_off")
+		mesecon.receptor_off(layout[1][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		assert.equal(0, #mesecon._test_effector_events)
+	end)
+
+	it("delays actions", function()
+		world.set_node(layout[1][1], "mesecons:test_receptor_on")
+		mesecon.queue:add_action(layout[1][1], "receptor_on", {mesecon.rules.alldirs}, 1, nil)
+		mineunit:execute_globalstep(0.1)
+		mineunit:execute_globalstep(1)
+		assert.equal(0, #mesecon._test_effector_events)
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		assert.equal(0, #mesecon._test_effector_events)
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal(2, #mesecon._test_effector_events)
+	end)
+end)

mesecons/spec/mineunit.conf

@@ -0,0 +1 @@
+fixture_paths = {"../.test_fixtures"}

mesecons/spec/service_spec.lua

@@ -0,0 +1,192 @@
+require("mineunit")
+
+fixture("mesecons")
+fixture("screwdriver")
+
+describe("placement/digging service", function()
+	local layout = {
+		{{x =  1, y = 0, z = 0}, "mesecons:test_receptor_on"},
+		{{x =  0, y = 0, z = 0}, "mesecons:test_conductor_on"},
+		{{x = -1, y = 0, z = 0}, "mesecons:test_conductor_on"},
+		{{x =  0, y = 1, z = 0}, "mesecons:test_effector"},
+		{{x = -2, y = 0, z = 0}, "mesecons:test_effector"},
+		{{x =  2, y = 0, z = 0}, "mesecons:test_effector"},
+	}
+
+	before_each(function()
+		world.layout(layout)
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("updates components when a receptor changes", function()
+		-- Dig then replace a receptor and check that the connected effectors changed.
+
+		mesecon._test_dig(layout[1][1])
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		assert.equal("mesecons:test_conductor_off", world.get_node(layout[2][1]).name)
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		assert.equal(3, #mesecon._test_effector_events)
+
+		mesecon._test_place(layout[1][1], "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[2][1]).name)
+		mineunit:execute_globalstep() -- Execute activate/change action
+		assert.equal(6, #mesecon._test_effector_events)
+	end)
+
+	it("updates components when a conductor changes", function()
+		-- Dig then replace a powered conductor and check that the connected effectors changed.
+
+		mesecon._test_dig(layout[2][1])
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		assert.equal("mesecons:test_conductor_off", world.get_node(layout[3][1]).name)
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		assert.equal(2, #mesecon._test_effector_events)
+
+		mesecon._test_place(layout[2][1], "mesecons:test_conductor_off")
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[2][1]).name)
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[3][1]).name)
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal(4, #mesecon._test_effector_events)
+	end)
+
+	it("updates effectors on placement", function()
+		local pos = {x = 0, y = 0, z = 1}
+		mesecon._test_place(pos, "mesecons:test_effector")
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal(tonumber("10100000", 2), world.get_node(pos).param2)
+	end)
+
+	it("updates multiconductors on placement", function()
+		local pos = {x = 0, y = 0, z = 1}
+		mesecon._test_place(pos, "mesecons:test_multiconductor_off")
+		assert.equal("mesecons:test_multiconductor_010", world.get_node(pos).name)
+	end)
+
+	it("turns off conductors on placement", function()
+		local pos = {x = 3, y = 0, z = 0}
+		mesecon._test_place(pos, "mesecons:test_conductor_on")
+		assert.equal("mesecons:test_conductor_off", world.get_node(pos).name)
+	end)
+
+	it("turns off multiconductors on placement", function()
+		local pos = {x = 3, y = 0, z = 0}
+		mesecon._test_place(pos, "mesecons:test_multiconductor_on")
+		assert.equal("mesecons:test_multiconductor_off", world.get_node(pos).name)
+	end)
+
+	it("triggers autoconnect hooks", function()
+		mesecon._test_dig(layout[2][1])
+		mineunit:execute_globalstep() -- Execute delayed hook
+		assert.equal(1, #mesecon._test_autoconnects)
+
+		mesecon._test_place(layout[2][1], layout[2][2])
+		assert.equal(2, #mesecon._test_autoconnects)
+	end)
+end)
+
+describe("overheating service", function()
+	local layout = {
+		{{x = 0, y = 0, z = 0}, "mesecons:test_receptor_off"},
+		{{x = 1, y = 0, z = 0}, "mesecons:test_effector"},
+		{{x = 2, y = 0, z = 0}, "mesecons:test_receptor_on"},
+	}
+
+	before_each(function()
+		world.layout(layout)
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("tracks heat", function()
+		mesecon.do_overheat(layout[2][1])
+		assert.equal(1, mesecon.get_heat(layout[2][1]))
+		mesecon.do_cooldown(layout[2][1])
+		assert.equal(0, mesecon.get_heat(layout[2][1]))
+	end)
+
+	it("cools over time", function()
+		mesecon.do_overheat(layout[2][1])
+		assert.equal(1, mesecon.get_heat(layout[2][1]))
+		mineunit:execute_globalstep(60)
+		mineunit:execute_globalstep(60)
+		mineunit:execute_globalstep(60)
+		assert.equal(0, mesecon.get_heat(layout[2][1]))
+	end)
+
+	it("tracks movement", function()
+		local oldpos = layout[2][1]
+		local pos = vector.offset(oldpos, 0, 1, 0)
+		mesecon.do_overheat(oldpos)
+		mesecon.move_hot_nodes({{pos = pos, oldpos = oldpos}})
+		assert.equal(0, mesecon.get_heat(oldpos))
+		assert.equal(1, mesecon.get_heat(pos))
+	end)
+
+	it("causes overheating", function()
+		-- Switch the first receptor on and off until it overheats/breaks a receptor.
+		repeat
+			if mesecon.flipstate(layout[1][1], minetest.get_node(layout[1][1])) == "on" then
+				mesecon.receptor_on(layout[1][1], mesecon.rules.alldirs)
+			else
+				mesecon.receptor_off(layout[1][1], mesecon.rules.alldirs)
+			end
+			mineunit:execute_globalstep(0) -- Execute receptor_on/receptor_off/activate/deactivate/change actions
+		until minetest.get_node(layout[2][1]).name ~= "mesecons:test_effector"
+		assert.same({"overheat", layout[2][1]}, mesecon._test_effector_events[#mesecon._test_effector_events])
+		assert.equal(0, mesecon.get_heat(layout[2][1]))
+	end)
+end)
+
+describe("screwdriver service", function()
+	local layout = {
+		{{x =  0, y = 0, z =  0}, "mesecons:test_conductor_rot_on"},
+		{{x =  1, y = 0, z =  0}, "mesecons:test_receptor_on"},
+		{{x = -1, y = 0, z =  0}, "mesecons:test_conductor_on"},
+		{{x =  0, y = 0, z =  1}, "mesecons:test_receptor_on"},
+		{{x =  0, y = 0, z = -1}, "mesecons:test_conductor_off"},
+	}
+
+	local function rotate(new_param2)
+		local pos = layout[1][1]
+		local node = world.get_node(pos)
+		local on_rotate = minetest.registered_nodes[node.name].on_rotate
+		on_rotate(pos, node, nil, screwdriver.ROTATE_FACE, new_param2)
+	end
+
+	before_each(function()
+		world.layout(layout)
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("updates conductors", function()
+		-- Rotate a conductor and see that the circuit state changes.
+		rotate(1)
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		assert.equal("mesecons:test_conductor_off", world.get_node(layout[3][1]).name)
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[5][1]).name)
+		rotate(2)
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[3][1]).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(layout[5][1]).name)
+		rotate(3)
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		assert.equal("mesecons:test_conductor_off", world.get_node(layout[3][1]).name)
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[5][1]).name)
+		rotate(0)
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[3][1]).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(layout[5][1]).name)
+	end)
+end)

mesecons/spec/state_spec.lua

@@ -0,0 +1,147 @@
+require("mineunit")
+
+fixture("mesecons")
+
+describe("state", function()
+	local layout = {
+		{{x =  1, y =  0, z = 0}, "mesecons:test_receptor_off"},
+		{{x =  0, y =  1, z = 0}, "mesecons:test_receptor_off"},
+		{{x =  0, y =  0, z = 0}, "mesecons:test_conductor_off"},
+		{{x = -1, y =  0, z = 0}, "mesecons:test_effector"},
+		{{x =  2, y =  0, z = 0}, "mesecons:test_effector"},
+		{{x =  0, y = -1, z = 0}, "mesecons:test_effector"},
+	}
+
+	before_each(function()
+		world.layout(layout)
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("turns on", function()
+		world.set_node(layout[1][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[1][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[3][1]).name)
+		assert.equal(tonumber("10000001", 2), world.get_node(layout[4][1]).param2)
+		assert.equal(tonumber("10000010", 2), world.get_node(layout[5][1]).param2)
+		assert.equal(tonumber("10000100", 2), world.get_node(layout[6][1]).param2)
+
+		world.set_node(layout[2][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[2][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[3][1]).name)
+		assert.equal(tonumber("10000001", 2), world.get_node(layout[4][1]).param2)
+		assert.equal(tonumber("10000010", 2), world.get_node(layout[5][1]).param2)
+		assert.equal(tonumber("10000100", 2), world.get_node(layout[6][1]).param2)
+	end)
+
+	it("turns off", function()
+		world.set_node(layout[1][1], "mesecons:test_receptor_on")
+		world.set_node(layout[2][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[1][1], mesecon.rules.alldirs)
+		mesecon.receptor_on(layout[2][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_on actions
+
+		world.set_node(layout[1][1], "mesecons:test_receptor_off")
+		mesecon.receptor_off(layout[1][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_off and activate/change actions
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		assert.equal("mesecons:test_conductor_on", world.get_node(layout[3][1]).name)
+		assert.equal(tonumber("10000001", 2), world.get_node(layout[4][1]).param2)
+		assert.equal(tonumber("00000000", 2), world.get_node(layout[5][1]).param2)
+		assert.equal(tonumber("10000100", 2), world.get_node(layout[6][1]).param2)
+
+		world.set_node(layout[2][1], "mesecons:test_receptor_off")
+		mesecon.receptor_off(layout[2][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		assert.equal("mesecons:test_conductor_off", world.get_node(layout[3][1]).name)
+		assert.equal(tonumber("00000000", 2), world.get_node(layout[4][1]).param2)
+		assert.equal(tonumber("00000000", 2), world.get_node(layout[5][1]).param2)
+		assert.equal(tonumber("00000000", 2), world.get_node(layout[6][1]).param2)
+	end)
+end)
+
+describe("rotation", function()
+	local layout = {
+		{{x =  0, y = 0, z =  0}, "mesecons:test_receptor_off"},
+		{{x =  1, y = 0, z =  0}, {name = "mesecons:test_conductor_rot_off", param2 = 0}},
+		{{x =  0, y = 0, z =  1}, {name = "mesecons:test_conductor_rot_off", param2 = 1}},
+		{{x = -1, y = 0, z =  0}, {name = "mesecons:test_conductor_rot_off", param2 = 2}},
+		{{x =  0, y = 0, z = -1}, {name = "mesecons:test_conductor_rot_off", param2 = 3}},
+	}
+
+	before_each(function()
+		for _, entry in ipairs(layout) do
+			world.set_node(entry[1], entry[2])
+		end
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("works", function()
+		world.set_node(layout[1][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[1][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		assert.equal("mesecons:test_conductor_rot_on", world.get_node(layout[2][1]).name)
+		assert.equal("mesecons:test_conductor_rot_on", world.get_node(layout[3][1]).name)
+		assert.equal("mesecons:test_conductor_rot_on", world.get_node(layout[4][1]).name)
+		assert.equal("mesecons:test_conductor_rot_on", world.get_node(layout[5][1]).name)
+	end)
+end)
+
+describe("multiconductor", function()
+	local layout = {
+		{{x =  1, y = 0, z =  0}, "mesecons:test_receptor_off"},
+		{{x =  0, y = 1, z =  0}, "mesecons:test_receptor_off"},
+		{{x =  0, y = 0, z =  1}, "mesecons:test_receptor_off"},
+		{{x =  0, y = 0, z =  0}, "mesecons:test_multiconductor_off"},
+	}
+
+	before_each(function()
+		world.layout(layout)
+	end)
+
+	after_each(function()
+		world.clear()
+		mesecon._test_reset()
+	end)
+
+	it("separates its subparts", function()
+		world.set_node(layout[1][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[1][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		assert.equal("mesecons:test_multiconductor_001", world.get_node(layout[4][1]).name)
+
+		world.set_node(layout[2][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[2][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		assert.equal("mesecons:test_multiconductor_011", world.get_node(layout[4][1]).name)
+
+		world.set_node(layout[3][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[3][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		assert.equal("mesecons:test_multiconductor_on", world.get_node(layout[4][1]).name)
+	end)
+
+	it("loops through itself", function()
+		-- Make a loop.
+		world.set_node({x = 0, y = -1, z = 0}, "mesecons:test_conductor_off")
+		world.set_node({x = -1, y = -1, z = 0}, "mesecons:test_conductor_off")
+		world.set_node({x = -1, y = 0, z = 0}, "mesecons:test_conductor_off")
+
+		world.set_node(layout[1][1], "mesecons:test_receptor_on")
+		mesecon.receptor_on(layout[1][1], mesecon.rules.alldirs)
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		assert.equal("mesecons:test_multiconductor_101", world.get_node(layout[4][1]).name)
+	end)
+end)

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)
 --[[

mesecons_blinkyplant/init.lua

@@ -1,5 +1,7 @@
 -- The BLINKY_PLANT
 
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local toggle_timer = function (pos)
 	local timer = minetest.get_node_timer(pos)
 	if timer:is_started() then
@@ -20,13 +22,13 @@ local on_timer = function (pos)
 end
 
 mesecon.register_node("mesecons_blinkyplant:blinky_plant", {
-	description="Blinky Plant",
+	description= S("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(),
+	sounds = mesecon.node_sound.leaves,
 	selection_box = {
 		type = "fixed",
 		fixed = {-0.3, -0.5, -0.3, 0.3, -0.5+0.7, 0.3},

mesecons_blinkyplant/locale/mesecons_blinkyplant.de.tr

@@ -0,0 +1,2 @@
+# textdomain: mesecons_blinkyplant
+Blinky Plant=Blinkpflanze

mesecons_blinkyplant/locale/mesecons_blinkyplant.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_blinkyplant
+
+### init.lua ###
+Blinky Plant=Palpebruma Planto

mesecons_blinkyplant/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_blinkyplant
+
+### init.lua ###
+Blinky Plant=

mesecons_blinkyplant/mod.conf

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

mesecons_button/init.lua

@@ -1,6 +1,7 @@
 -- WALL BUTTON
 -- A button that when pressed emits power for 1 second
 -- and then turns off again
+local S = minetest.get_translator(minetest.get_current_modname())
 
 mesecon.button_turnoff = function (pos)
 	local node = minetest.get_node(pos)
@@ -45,14 +46,14 @@ minetest.register_node("mesecons_button:button_off", {
 	}
 	},
 	groups = {dig_immediate=2, mesecon_needs_receiver = 1},
-	description = "Button",
+	description = S("Button"),
 	on_rightclick = function (pos, node)
 		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 }, 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
@@ -92,8 +93,8 @@ 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",
+	description = S("Button"),
-	sounds = default.node_sound_stone_defaults(),
+	sounds = mesecon.node_sound.stone,
 	mesecons = {receptor = {
 		state = mesecon.state.on,
 		rules = mesecon.rules.buttonlike_get
@@ -105,6 +106,6 @@ 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/locale/mesecons_button.de.tr

@@ -0,0 +1,2 @@
+# textdomain: mesecons_button
+Button=Taster

mesecons_button/locale/mesecons_button.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_button
+
+### init.lua ###
+Button=Butono

mesecons_button/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_button
+
+### init.lua ###
+Button=

mesecons_button/mod.conf

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

mesecons_commandblock/init.lua

@@ -1,6 +1,8 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 minetest.register_chatcommand("say", {
 	params = "<text>",
-	description = "Say <text> as the server",
+	description = S("Say <text> as the server"),
 	privs = {server=true},
 	func = function(name, param)
 		minetest.chat_send_all(name .. ": " .. param)
@@ -9,7 +11,7 @@ minetest.register_chatcommand("say", {
 
 minetest.register_chatcommand("tell", {
 	params = "<name> <text>",
-	description = "Say <text> to <name> privately",
+	description = S("Say <text> to <name> privately"),
 	privs = {shout=true},
 	func = function(name, param)
 		local found, _, target, message = param:find("^([^%s]+)%s+(.*)$")
@@ -26,7 +28,7 @@ minetest.register_chatcommand("tell", {
 
 minetest.register_chatcommand("hp", {
 	params = "<name> <value>",
-	description = "Set health of <name> to <value> hitpoints",
+	description = S("Set health of <name> to <value> hitpoints"),
 	privs = {ban=true},
 	func = function(name, param)
 		local found, _, target, value = param:find("^([^%s]+)%s+(%d+)$")
@@ -180,7 +182,7 @@ local function can_dig(pos, player)
 end
 
 minetest.register_node("mesecons_commandblock:commandblock_off", {
-	description = "Command Block",
+	description = S("Command Block"),
 	tiles = {"jeija_commandblock_off.png"},
 	inventory_image = minetest.inventorycube("jeija_commandblock_off.png"),
 	is_ground_content = false,
@@ -189,7 +191,7 @@ 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
 	}},
@@ -206,7 +208,7 @@ 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/locale/mesecons_commandblock.de.tr

@@ -0,0 +1,5 @@
+# textdomain: mesecons_commandblock
+Say <text> as the server=<Text> als Server sagen
+Say <text> to <name> privately=<Text> an <Name> privat senden
+Set health of <name> to <value> hitpoints=Gesundheit von <Name> auf <Wert> Trefferpunkte setzen
+Command Block=Befehlsblock

mesecons_commandblock/locale/mesecons_commandblock.eo.tr

@@ -0,0 +1,7 @@
+# textdomain: mesecons_commandblock
+
+### init.lua ###
+Say <text> as the server=Diru <teksto> kiel la servilo
+Say <text> to <name> privately=Diru <teksto> al <nomo> private
+Set health of <name> to <value> hitpoints=Agordu sanon de <nomo> al <valoro>
+Command Block=Komando-Bloko

mesecons_commandblock/locale/template.txt

@@ -0,0 +1,7 @@
+# textdomain: mesecons_commandblock
+
+### init.lua ###
+Say <text> as the server=
+Say <text> to <name> privately=
+Set health of <name> to <value> hitpoints=
+Command Block=

mesecons_commandblock/mod.conf

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

mesecons_delayer/init.lua

@@ -1,19 +1,9 @@
--- Function that get the input/output rules of the delayer
+local S = minetest.get_translator(minetest.get_current_modname())
-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_input_rules = function(node)
+-- Function that get the input/output rules of the delayer
-	local rules = {{x = 0, y = 0, z = -1}}
+local delayer_get_output_rules = mesecon.horiz_rules_getter({{x = 1, y = 0, z = 0}})
-	for i = 0, node.param2 do
+
-		rules = mesecon.rotate_rules_left(rules)
+local delayer_get_input_rules = mesecon.horiz_rules_getter({{x = -1, y = 0, z = 0}})
-	end
-	return rules
-end
 
 -- Functions that are called after the delay time
 
@@ -69,9 +59,11 @@ 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",
+	delayer_onstate = "mesecons_delayer:delayer_on_"..tostring(i),
+	delayer_offstate = "mesecons_delayer:delayer_off_"..tostring(i),
 }
 
 -- Deactivated delayer definition defaults
@@ -81,7 +73,7 @@ if i > 1 then
 end
 
 local off_state = {
-	description = "Delayer",
+	description = S("Delayer"),
 	tiles = {
 		"mesecons_delayer_off_"..tostring(i)..".png",
 		"mesecons_delayer_bottom.png",
@@ -103,7 +95,6 @@ local off_state = {
 			param2 = node.param2
 		})
 	end,
-	delayer_onstate = "mesecons_delayer:delayer_on_"..tostring(i),
 	mesecons = {
 		receptor =
 		{
@@ -113,6 +104,7 @@ local off_state = {
 		effector =
 		{
 			rules = delayer_get_input_rules,
+			action_off = delayer_deactivate,
 			action_on = delayer_activate
 		}
 	},
@@ -124,7 +116,7 @@ minetest.register_node("mesecons_delayer:delayer_off_"..tostring(i), off_state)
 
 -- Activated delayer definition defaults
 local on_state = {
-	description = "You hacker you",
+	description = S("You hacker you"),
 	tiles = {
 		"mesecons_delayer_on_"..tostring(i)..".png",
 		"mesecons_delayer_bottom.png",
@@ -144,7 +136,6 @@ local on_state = {
 			param2 = node.param2
 		})
 	end,
-	delayer_offstate = "mesecons_delayer:delayer_off_"..tostring(i),
 	mesecons = {
 		receptor =
 		{
@@ -154,7 +145,8 @@ local on_state = {
 		effector =
 		{
 			rules = delayer_get_input_rules,
-			action_off = delayer_deactivate
+			action_off = delayer_deactivate,
+			action_on = delayer_activate
 		}
 	},
 }
@@ -169,6 +161,6 @@ 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/locale/mesecons_delayer.de.tr

@@ -0,0 +1,3 @@
+# textdomain: mesecons_delayer
+Delayer=Verzögerer
+You hacker you=Du Hacker, Du

mesecons_delayer/locale/mesecons_delayer.eo.tr

@@ -0,0 +1,5 @@
+# textdomain: mesecons_delayer
+
+### init.lua ###
+Delayer=Prokrasto
+You hacker you=Vi hakisto

mesecons_delayer/locale/template.txt

@@ -0,0 +1,5 @@
+# textdomain: mesecons_delayer
+
+### init.lua ###
+Delayer=
+You hacker you=

mesecons_delayer/mod.conf

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

mesecons_detector/init.lua

@@ -1,5 +1,19 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
+local side_texture = mesecon.texture.steel_block or "mesecons_detector_side.png"
+
 local GET_COMMAND = "GET"
 
+
+local function comma_list_to_table(comma_list)
+	local tbl = {}
+	for _, str in ipairs(string.split(comma_list:gsub("%s", ""), ",")) do
+		tbl[str] = true
+	end
+	return tbl
+end
+
+
 -- Object detector
 -- Detects players in a certain radius
 -- The radius can be specified in mesecons/settings.lua
@@ -31,10 +45,7 @@ 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 = {}
+	local scan_for = comma_list_to_table(scanname)
-	for _, str in pairs(string.split(scanname:gsub(" ", ""), ",")) do
-		scan_for[str] = true
-	end
 
 	local every_player = scanname == ""
 	for _, obj in pairs(objs) do
@@ -64,25 +75,25 @@ 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,
 	groups = {cracky=3},
-	description="Player Detector",
+	description= S("Player Detector"),
 	mesecons = {receptor = {
 		state = mesecon.state.off,
 		rules = mesecon.rules.pplate
 	}},
 	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 +105,7 @@ 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 +113,18 @@ 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"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot"},
-		{"default:steel_ingot", "mesecons_luacontroller:luacontroller0000", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_luacontroller:luacontroller0000", "mesecons_gamecompat:steel_ingot"},
-		{"default:steel_ingot", "group:mesecon_conductor_craftable", "default: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"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot"},
-		{"default:steel_ingot", "mesecons_microcontroller:microcontroller0000", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_microcontroller:microcontroller0000", "mesecons_gamecompat:steel_ingot"},
-		{"default:steel_ingot", "group:mesecon_conductor_craftable", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot"},
 	}
 })
 
@@ -146,6 +157,23 @@ minetest.register_abm({
 -- Node detector
 -- Detects the node in front of it
 
+local blacklist = {
+	air = true,
+	ignore = true,
+}
+
+function mesecon.node_detector_blacklist_add(node)
+	blacklist[node] = true
+end
+
+function mesecon.node_detector_blacklist_remove(node)
+	blacklist[node] = nil
+end
+
+function mesecon.node_detector_on_blacklist(node)
+	return blacklist[node] == true
+end
+
 local function node_detector_make_formspec(pos)
 	local meta = minetest.get_meta(pos)
 	if meta:get_string("distance") == ""  then meta:set_string("distance", "0") end
@@ -184,9 +212,10 @@ local function node_detector_scan(pos)
 		vector.subtract(pos, vector.multiply(minetest.facedir_to_dir(node.param2), distance + 1))
 	).name
 	local scanname = meta:get_string("scanname")
+	local scan_for = comma_list_to_table(scanname)
 
-	return (frontname == scanname) or
+	return (scan_for[frontname]) or
-		(frontname ~= "air" and frontname ~= "ignore" and scanname == "")
+		(blacklist[frontname] ~= true and scanname == "")
 end
 
 local function node_detector_send_node_name(pos, node, channel, meta)
@@ -239,25 +268,25 @@ local node_detector_digiline = {
 }
 
 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,
 	walkable = true,
 	groups = {cracky=3},
-	description="Node Detector",
+	description = S("Node Detector"),
 	mesecons = {receptor = {
 		state = mesecon.state.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,
@@ -269,7 +298,7 @@ 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,
 })
@@ -277,18 +306,18 @@ 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"},
+		{"mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot"},
-		{"default:steel_ingot", "mesecons_luacontroller:luacontroller0000", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_luacontroller:luacontroller0000", "mesecons_gamecompat:steel_ingot"},
-		{"default:steel_ingot", "default:steel_ingot", "default: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"},
+		{"mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot"},
-		{"default:steel_ingot", "mesecons_microcontroller:microcontroller0000", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_microcontroller:microcontroller0000", "mesecons_gamecompat:steel_ingot"},
-		{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+		{"mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot", "mesecons_gamecompat:steel_ingot"},
 	}
 })
 

mesecons_detector/locale/mesecons_detector.de.tr

@@ -0,0 +1,3 @@
+# textdomain: mesecons_detector
+Player Detector=Spielerdetektor
+Node Detector=Blockdetektor

mesecons_detector/locale/mesecons_detector.eo.tr

@@ -0,0 +1,5 @@
+# textdomain: mesecons_detector
+
+### init.lua ###
+Player Detector=Ludanta Detektilo
+Node Detector=Noda Detektilo

mesecons_detector/locale/template.txt

@@ -0,0 +1,5 @@
+# textdomain: mesecons_detector
+
+### init.lua ###
+Player Detector=
+Node Detector=

mesecons_detector/mod.conf

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

mesecons_extrawires/corner.lua

@@ -1,21 +1,14 @@
-local screwdriver_exists = minetest.global_exists("screwdriver")
+local S = minetest.get_translator(minetest.get_current_modname())
 
 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 corner_get_rules = mesecon.horiz_rules_getter({
-	local rules =
+	{x = 0, y = 0, z = -1},
-	{{x = 1,  y = 0,  z =  0},
+	{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
 
 minetest.register_node("mesecons_extrawires:corner_on", {
 	drawtype = "mesh",
@@ -32,7 +25,7 @@ minetest.register_node("mesecons_extrawires:corner_on", {
 	selection_box = corner_selectionbox,
 	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,
@@ -40,12 +33,12 @@ 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", {
 	drawtype = "mesh",
-	description = "Insulated Mesecon Corner",
+	description = S("Insulated Mesecon Corner"),
 	mesh = "mesecons_extrawires_corner.obj",
 	tiles = {
 		{ name = "jeija_insulated_wire_sides_off.png", backface_culling = true },
@@ -58,7 +51,7 @@ minetest.register_node("mesecons_extrawires:corner_off", {
 	sunlight_propagates = true,
 	selection_box = corner_selectionbox,
 	groups = {dig_immediate = 3},
-	sounds = default.node_sound_defaults(),
+	sounds = mesecon.node_sound.default,
 	mesecons = {conductor =
 	{
 		state = mesecon.state.off,
@@ -66,7 +59,7 @@ 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({
@@ -76,3 +69,9 @@ minetest.register_craft({
 		{"", "mesecons_insulated:insulated_off"},
 	}
 })
+
+minetest.register_craft({
+	output = "mesecons_insulated:insulated_off",
+	type = "shapeless",
+	recipe = {"mesecons_extrawires:corner_off"}
+})

mesecons_extrawires/crossover.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local crossover_rules = {
 	{--first wire
 		{x=-1,y=0,z=0},
@@ -17,7 +19,7 @@ local crossover_states = {
 }
 
 minetest.register_node("mesecons_extrawires:crossover_off", {
-	description = "Insulated Mesecon Crossover",
+	description = S("Insulated Mesecon Crossover"),
 	drawtype = "mesh",
 	mesh = "mesecons_extrawires_crossover.b3d",
 	tiles = {
@@ -32,7 +34,7 @@ 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,
@@ -43,7 +45,7 @@ minetest.register_node("mesecons_extrawires:crossover_off", {
 })
 
 minetest.register_node("mesecons_extrawires:crossover_01", {
-	description = "You hacker you!",
+	description = S("You hacker you!"),
 	drop = "mesecons_extrawires:crossover_off",
 	drawtype = "mesh",
 	mesh = "mesecons_extrawires_crossover.b3d",
@@ -59,7 +61,7 @@ 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,
@@ -70,7 +72,7 @@ minetest.register_node("mesecons_extrawires:crossover_01", {
 })
 
 minetest.register_node("mesecons_extrawires:crossover_10", {
-	description = "You hacker you!",
+	description = S("You hacker you!"),
 	drop = "mesecons_extrawires:crossover_off",
 	drawtype = "mesh",
 	mesh = "mesecons_extrawires_crossover.b3d",
@@ -86,7 +88,7 @@ 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,
@@ -97,7 +99,7 @@ minetest.register_node("mesecons_extrawires:crossover_10", {
 })
 
 minetest.register_node("mesecons_extrawires:crossover_on", {
-	description = "You hacker you!",
+	description = S("You hacker you!"),
 	drop = "mesecons_extrawires:crossover_off",
 	drawtype = "mesh",
 	mesh = "mesecons_extrawires_crossover.b3d",
@@ -113,7 +115,7 @@ 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,

mesecons_extrawires/doublecorner.lua

@@ -1,12 +1,11 @@
-local rotate
+local S = minetest.get_translator(minetest.get_current_modname())
-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 +14,7 @@ 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",
@@ -46,7 +33,7 @@ for k, state in ipairs(doublecorner_states) do
 	minetest.register_node(state, {
 		drawtype = "mesh",
 		mesh = "mesecons_extrawires_doublecorner.obj",
-		description = "Insulated Mesecon Double Corner",
+		description = S("Insulated Mesecon Double Corner"),
 		tiles = {
 			{ name = "jeija_insulated_wire_sides_" .. w1 .. ".png", backface_culling = true },
 			{ name = "jeija_insulated_wire_ends_" .. w1 .. ".png", backface_culling = true },
@@ -61,7 +48,7 @@ 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 +56,7 @@ 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/locale/mesecons_extrawires.de.tr

@@ -0,0 +1,8 @@
+# textdomain: mesecons_extrawires
+Insulated Mesecon Corner=Isolierte Meseconecke
+Insulated Mesecon Crossover=Isolierter Meseconübergang
+You hacker you!=Sie Hacker!
+Insulated Mesecon Double Corner=Isolierte Mesecondoppelecke
+Mese Wire=Mesedraht
+Insulated Mesecon T-junction=Isolierte Mesecongabelung
+Vertical Mesecon=Vertikaler Mesecon

mesecons_extrawires/locale/mesecons_extrawires.eo.tr

@@ -0,0 +1,20 @@
+# textdomain: mesecons_extrawires
+
+### corner.lua ###
+Insulated Mesecon Corner=Izolita Mesekonduktila Angulo
+
+### crossover.lua ###
+Insulated Mesecon Crossover=Izolita Mesekonduktila Interkruciĝo
+You hacker you!=Vi hakisto
+
+### doublecorner.lua ###
+Insulated Mesecon Double Corner=Izolita Mesekonduktila Duobla Angulo
+
+### mesewire.lua ###
+Mese Wire=Mesea Drato
+
+### tjunction.lua ###
+Insulated Mesecon T-junction=Izolita Mesekonduktila T-Kruciĝo
+
+### vertical.lua ###
+Vertical Mesecon=Vertikala Mesekonduktilo

mesecons_extrawires/locale/template.txt

@@ -0,0 +1,20 @@
+# textdomain: mesecons_extrawires
+
+### corner.lua ###
+Insulated Mesecon Corner=
+
+### crossover.lua ###
+Insulated Mesecon Crossover=
+You hacker you!=
+
+### doublecorner.lua ###
+Insulated Mesecon Double Corner=
+
+### mesewire.lua ###
+Mese Wire=
+
+### tjunction.lua ###
+Insulated Mesecon T-junction=
+
+### vertical.lua ###
+Vertical Mesecon=

mesecons_extrawires/mesewire.lua

@@ -1,3 +1,22 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
+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 = S("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 +27,7 @@ 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 +37,17 @@ 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.merge_tables(minetest.registered_nodes["default:mese"], {
+local unpowered_def = minetest.registered_nodes[mese_nodename]
-	drop = "default:mese",
+local powered_def = mesecon.merge_tables(unpowered_def, {
-	light_source = 5,
+	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
+depends = mesecons, mesecons_gamecompat
-optional_depends = screwdriver

mesecons_extrawires/tjunction.lua

@@ -1,4 +1,4 @@
-local screwdriver_exists = minetest.global_exists("screwdriver")
+local S = minetest.get_translator(minetest.get_current_modname())
 
 local tjunction_nodebox = {
 	type = "fixed",
@@ -12,18 +12,11 @@ local tjunction_selectionbox = {
 		fixed = { -16/32, -16/32, -16/32, 16/32, -12/32, 7/32 },
 }
 
-local tjunction_get_rules = function (node)
+local tjunction_get_rules = mesecon.horiz_rules_getter({
-	local rules =
+	{x = 1, y = 0, z = 0},
-	{{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}}
+})
-
-	for i = 0, node.param2 do
-		rules = mesecon.rotate_rules_left(rules)
-	end
-
-	return rules
-end
 
 minetest.register_node("mesecons_extrawires:tjunction_on", {
 	drawtype = "nodebox",
@@ -44,7 +37,7 @@ 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,
@@ -52,12 +45,12 @@ 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", {
 	drawtype = "nodebox",
-	description = "Insulated Mesecon T-junction",
+	description = S("Insulated Mesecon T-junction"),
 	tiles = {
 		"jeija_insulated_wire_tjunction_tb_off.png",
 		"jeija_insulated_wire_tjunction_tb_off.png^[transformR180",
@@ -74,7 +67,7 @@ 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 +75,7 @@ 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

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local vertical_box = {
 	type = "fixed",
 	fixed = {-1/16, -8/16, -1/16, 1/16, 8/16, 1/16}
@@ -38,35 +40,39 @@ local bottom_rules = {
 	{x=0, y=2, z=0} -- receive power from pressure plate / detector / ... 2 nodes above
 }
 
+local function is_vertical_conductor(nodename)
+	local def = minetest.registered_nodes[nodename]
+	return def and def.is_vertical_conductor
+end
+
 local vertical_updatepos = function (pos)
 	local node = minetest.get_node(pos)
-	if minetest.registered_nodes[node.name]
+	if not is_vertical_conductor(node.name) then
-	and minetest.registered_nodes[node.name].is_vertical_conductor then
+		return
-		local node_above = minetest.get_node(vector.add(pos, vertical_rules[1]))
-		local node_below = minetest.get_node(vector.add(pos, vertical_rules[2]))
-
-		local above = minetest.registered_nodes[node_above.name]
-			and minetest.registered_nodes[node_above.name].is_vertical_conductor
-		local below = minetest.registered_nodes[node_below.name]
-			and minetest.registered_nodes[node_below.name].is_vertical_conductor
-
-		mesecon.on_dignode(pos, node)
-
-		-- Always place offstate conductor and let mesecon.on_placenode take care
-		local newname = "mesecons_extrawires:vertical_"
-		if above and below then -- above and below: vertical mesecon
-			newname = newname .. "off"
-		elseif above and not below then -- above only: bottom
-			newname = newname .. "bottom_off"
-		elseif not above and below then -- below only: top
-			newname = newname .. "top_off"
-		else -- no vertical wire above, no vertical wire below: use bottom
-			newname = newname .. "bottom_off"
-		end
-
-		minetest.set_node(pos, {name = newname})
-		mesecon.on_placenode(pos, {name = newname})
 	end
+
+	local node_above = minetest.get_node(vector.add(pos, vertical_rules[1]))
+	local node_below = minetest.get_node(vector.add(pos, vertical_rules[2]))
+
+	local above = is_vertical_conductor(node_above.name)
+	local below = is_vertical_conductor(node_below.name)
+
+	mesecon.on_dignode(pos, node)
+
+	-- Always place offstate conductor and let mesecon.on_placenode take care
+	local newname = "mesecons_extrawires:vertical_"
+	if above and below then -- above and below: vertical mesecon
+		newname = newname .. "off"
+	elseif above and not below then -- above only: bottom
+		newname = newname .. "bottom_off"
+	elseif not above and below then -- below only: top
+		newname = newname .. "top_off"
+	else -- no vertical wire above, no vertical wire below: use bottom
+		newname = newname .. "bottom_off"
+	end
+
+	minetest.set_node(pos, {name = newname})
+	mesecon.on_placenode(pos, {name = newname})
 end
 
 local vertical_update = function (pos)
@@ -77,7 +83,7 @@ end
 
 -- Vertical wire
 mesecon.register_node("mesecons_extrawires:vertical", {
-	description = "Vertical Mesecon",
+	description = S("Vertical Mesecon"),
 	drawtype = "nodebox",
 	walkable = false,
 	paramtype = "light",
@@ -89,7 +95,7 @@ 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},
@@ -110,7 +116,7 @@ mesecon.register_node("mesecons_extrawires:vertical", {
 
 -- Vertical wire top
 mesecon.register_node("mesecons_extrawires:vertical_top", {
-	description = "Vertical mesecon",
+	description = S("Vertical Mesecon"),
 	drawtype = "nodebox",
 	walkable = false,
 	paramtype = "light",
@@ -123,7 +129,7 @@ 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 = {
@@ -142,7 +148,7 @@ mesecon.register_node("mesecons_extrawires:vertical_top", {
 
 -- Vertical wire bottom
 mesecon.register_node("mesecons_extrawires:vertical_bottom", {
-	description = "Vertical mesecon",
+	description = S("Vertical Mesecon"),
 	drawtype = "nodebox",
 	walkable = false,
 	paramtype = "light",
@@ -155,7 +161,7 @@ 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 = {

mesecons_fpga/init.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local plg = {}
 plg.rules = {}
 -- per-player formspec positions
@@ -59,7 +61,7 @@ plg.register_nodes = function(template)
 end
 
 plg.register_nodes({
-	description = "FPGA",
+	description = S("FPGA"),
 	drawtype = "nodebox",
 	tiles = {
 		"", -- replaced later
@@ -109,7 +111,7 @@ 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

mesecons_fpga/locale/mesecons_fpga.de.tr

@@ -0,0 +1,3 @@
+# textdomain: mesecons_fpga
+FPGA=FPGA
+FPGA Programmer=FPGA-Programmierer

mesecons_fpga/locale/mesecons_fpga.eo.tr

@@ -0,0 +1,7 @@
+# textdomain: mesecons_fpga
+
+### init.lua ###
+FPGA=FPGA
+
+### tool.lua ###
+FPGA Programmer=FPGA Programilo

mesecons_fpga/locale/template.txt

@@ -0,0 +1,7 @@
+# textdomain: mesecons_fpga
+
+### init.lua ###
+FPGA=
+
+### tool.lua ###
+FPGA Programmer=

mesecons_fpga/mod.conf

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

mesecons_fpga/spec/helper_spec.lua

@@ -0,0 +1,106 @@
+require("mineunit")
+
+fixture("mesecons_fpga")
+fixture("screwdriver")
+
+local pos = {x = 0, y = 0, z = 0}
+local pos_a = {x = -1, y = 0, z =  0}
+local pos_b = {x =  0, y = 0, z =  1}
+local pos_c = {x =  1, y = 0, z =  0}
+local pos_d = {x =  0, y = 0, z = -1}
+
+describe("FPGA rotation", function()
+	before_each(function()
+		world.set_node(pos, "mesecons_fpga:fpga0000")
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("rotates I/O operands clockwise", function()
+		mesecon._test_program_fpga(pos, {{"A", "OR", "B", "C"}})
+
+		local node = world.get_node(pos)
+		minetest.registered_nodes[node.name].on_rotate(pos, node, nil, screwdriver.ROTATE_FACE)
+
+		mesecon._test_place(pos_b, "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal("mesecons_fpga:fpga1000", world.get_node(pos).name)
+
+		mesecon._test_dig(pos_b)
+		mesecon._test_place(pos_c, "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on/receptor_off actions
+		mineunit:execute_globalstep() -- Execute activate/deactivate/change actions
+		assert.equal("mesecons_fpga:fpga1000", world.get_node(pos).name)
+	end)
+
+	it("rotates I/O operands counterclockwise", function()
+		mesecon._test_program_fpga(pos, {{"A", "OR", "B", "C"}})
+
+		local node = world.get_node(pos)
+		minetest.registered_nodes[node.name].on_rotate(pos, node, nil, screwdriver.ROTATE_AXIS)
+
+		mesecon._test_place(pos_d, "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal("mesecons_fpga:fpga0010", world.get_node(pos).name)
+
+		mesecon._test_dig(pos_d)
+		mesecon._test_place(pos_a, "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on/receptor_off actions
+		mineunit:execute_globalstep() -- Execute activate/deactivate/change actions
+		assert.equal("mesecons_fpga:fpga0010", world.get_node(pos).name)
+	end)
+
+	it("updates ports", function()
+		mesecon._test_program_fpga(pos, {{"NOT", "A", "B"}})
+		assert.equal("mesecons_fpga:fpga0010", world.get_node(pos).name)
+
+		local node = world.get_node(pos)
+		minetest.registered_nodes[node.name].on_rotate(pos, node, nil, screwdriver.ROTATE_AXIS)
+		assert.equal("mesecons_fpga:fpga0001", world.get_node(pos).name)
+	end)
+end)
+
+describe("FPGA programmer", function()
+	local pos2 = {x = 10, y = 0, z = 0}
+
+	before_each(function()
+		world.set_node(pos, "mesecons_fpga:fpga0000")
+		world.set_node(pos2, "mesecons_fpga:fpga0000")
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("transfers instructions", function()
+		mesecon._test_program_fpga(pos2, {{"NOT", "A", "B"}})
+		mesecon._test_paste_fpga_program(pos, mesecon._test_copy_fpga_program(pos2))
+		assert.equal("mesecons_fpga:fpga0010", world.get_node(pos).name)
+	end)
+
+	it("does not copy from new FPGAs", function()
+		mesecon._test_program_fpga(pos, {{"NOT", "A", "B"}})
+		mesecon._test_paste_fpga_program(pos, mesecon._test_copy_fpga_program(pos2))
+		assert.equal("mesecons_fpga:fpga0010", world.get_node(pos).name)
+	end)
+
+	it("does not copy from cleared FPGAs", function()
+		mesecon._test_program_fpga(pos, {{"NOT", "A", "B"}})
+		mesecon._test_program_fpga(pos2, {{"=", "A", "B"}})
+		mesecon._test_program_fpga(pos2, {})
+		mesecon._test_paste_fpga_program(pos, mesecon._test_copy_fpga_program(pos2))
+		assert.equal("mesecons_fpga:fpga0010", world.get_node(pos).name)
+	end)
+
+	it("does not copy from non-FPGA nodes", function()
+		mesecon._test_program_fpga(pos, {{"NOT", "A", "B"}})
+		mesecon._test_paste_fpga_program(pos, mesecon._test_copy_fpga_program(vector.add(pos2, 1)))
+		assert.equal("mesecons_fpga:fpga0010", world.get_node(pos).name)
+	end)
+end)

mesecons_fpga/spec/logic_spec.lua

@@ -0,0 +1,235 @@
+require("mineunit")
+
+fixture("mesecons_fpga")
+
+describe("FPGA logic", function()
+	local pos = {x = 0, y = 0, z = 0}
+	local pos_a = {x = -1, y = 0, z =  0}
+	local pos_b = {x =  0, y = 0, z =  1}
+	local pos_c = {x =  1, y = 0, z =  0}
+	local pos_d = {x =  0, y = 0, z = -1}
+
+	local fpga_set = false
+
+	local function set_fpga()
+		if not fpga_set then
+			world.set_node(pos, "mesecons_fpga:fpga0000")
+			fpga_set = true
+		end
+	end
+	before_each(set_fpga)
+
+	local function reset_world()
+		if fpga_set then
+			mesecon._test_reset()
+			world.clear()
+			fpga_set = false
+		end
+	end
+	after_each(reset_world)
+
+	local function test_program(inputs, outputs, program)
+		set_fpga()
+
+		mesecon._test_program_fpga(pos, program)
+
+		if inputs.a then mesecon._test_place(pos_a, "mesecons:test_receptor_on") end
+		if inputs.b then mesecon._test_place(pos_b, "mesecons:test_receptor_on") end
+		if inputs.c then mesecon._test_place(pos_c, "mesecons:test_receptor_on") end
+		if inputs.d then mesecon._test_place(pos_d, "mesecons:test_receptor_on") end
+		mineunit:execute_globalstep() -- Execute receptor_on actions
+		mineunit:execute_globalstep() -- Execute activate/change actions
+
+		local expected_name = "mesecons_fpga:fpga"
+				.. (outputs.d and 1 or 0) .. (outputs.c and 1 or 0)
+				.. (outputs.b and 1 or 0) .. (outputs.a and 1 or 0)
+		assert.equal(expected_name, world.get_node(pos).name)
+
+		reset_world()
+	end
+
+	it("operator and", function()
+		local prog = {{"A", "AND", "B", "C"}}
+		test_program({}, {}, prog)
+		test_program({a = true}, {}, prog)
+		test_program({b = true}, {}, prog)
+		test_program({a = true, b = true}, {c = true}, prog)
+	end)
+
+	it("operator or", function()
+		local prog = {{"A", "OR", "B", "C"}}
+		test_program({}, {}, prog)
+		test_program({a = true}, {c = true}, prog)
+		test_program({b = true}, {c = true}, prog)
+		test_program({a = true, b = true}, {c = true}, prog)
+	end)
+
+	it("operator not", function()
+		local prog = {{"NOT", "A", "B"}}
+		test_program({}, {b = true}, prog)
+		test_program({a = true}, {}, prog)
+	end)
+
+	it("operator xor", function()
+		local prog = {{"A", "XOR", "B", "C"}}
+		test_program({}, {}, prog)
+		test_program({a = true}, {c = true}, prog)
+		test_program({b = true}, {c = true}, prog)
+		test_program({a = true, b = true}, {}, prog)
+	end)
+
+	it("operator nand", function()
+		local prog = {{"A", "NAND", "B", "C"}}
+		test_program({}, {c = true}, prog)
+		test_program({a = true}, {c = true}, prog)
+		test_program({b = true}, {c = true}, prog)
+		test_program({a = true, b = true}, {}, prog)
+	end)
+
+	it("operator buf", function()
+		local prog = {{"=", "A", "B"}}
+		test_program({}, {}, prog)
+		test_program({a = true}, {b = true}, prog)
+	end)
+
+	it("operator xnor", function()
+		local prog = {{"A", "XNOR", "B", "C"}}
+		test_program({}, {c = true}, prog)
+		test_program({a = true}, {}, prog)
+		test_program({b = true}, {}, prog)
+		test_program({a = true, b = true}, {c = true}, prog)
+	end)
+
+	it("operator nor", function()
+		local prog = {{"A", "NOR", "B", "C"}}
+		test_program({}, {c = true}, prog)
+		test_program({a = true}, {}, prog)
+		test_program({b = true}, {}, prog)
+		test_program({a = true, b = true}, {}, prog)
+	end)
+
+	it("rejects duplicate operands", function()
+		test_program({a = true}, {}, {{"A", "OR", "A", "B"}})
+		test_program({a = true}, {}, {{"=", "A", "0"}, {"0", "OR", "0", "B"}})
+	end)
+
+	it("rejects unassigned memory operands", function()
+		test_program({a = true}, {}, {{"A", "OR", "0", "B"}})
+		test_program({a = true}, {}, {{"0", "OR", "A", "B"}})
+	end)
+
+	it("rejects double memory assignment", function()
+		test_program({a = true}, {}, {{"=", "A", "0"}, {"=", "A", "0"}, {"=", "0", "B"}})
+	end)
+
+	it("rejects assignment to memory operand", function()
+		test_program({a = true}, {}, {{"=", "A", "0"}, {"A", "OR", "0", "0"}, {"=", "0", "B"}})
+	end)
+
+	it("allows double port assignment", function()
+		test_program({a = true}, {b = true}, {{"NOT", "A", "B"}, {"=", "A", "B"}})
+	end)
+
+	it("allows assignment to port operand", function()
+		test_program({a = true}, {b = true}, {{"A", "OR", "B", "B"}})
+	end)
+
+	it("preserves initial pin states", function()
+		test_program({a = true}, {b = true}, {{"=", "A", "B"}, {"=", "B", "C"}})
+	end)
+
+	it("rejects binary operations with single operands", function()
+		test_program({a = true}, {}, {{"=", "A", "B"}, {" ", "OR", "A", "C"}})
+		test_program({a = true}, {}, {{"=", "A", "B"}, {"A", "OR", " ", "C"}})
+	end)
+
+	it("rejects unary operations with first operands", function()
+		test_program({a = true}, {}, {{"=", "A", "B"}, {"A", "=", " ", "C"}})
+	end)
+
+	it("rejects operations without destinations", function()
+		test_program({a = true}, {}, {{"=", "A", "B"}, {"=", "A", " "}})
+	end)
+
+	it("allows blank statements", function()
+		test_program({a = true}, {b = true, c = true}, {
+			{" ", " ", " ", " "},
+			{"=", "A", "B"},
+			{" ", " ", " ", " "},
+			{" ", " ", " ", " "},
+			{"=", "A", "C"},
+		})
+	end)
+
+	it("transmits output signals to adjacent nodes", function()
+		mesecon._test_program_fpga(pos, {
+			{"=", "A", "B"},
+			{"=", "A", "C"},
+			{"NOT", "A", "D"},
+		})
+		mesecon._test_place(pos_b, "mesecons:test_effector")
+		mesecon._test_place(pos_c, "mesecons:test_effector")
+		mesecon._test_place(pos_d, "mesecons:test_effector")
+		mineunit:execute_globalstep() -- Execute receptor_on actions
+		mineunit:execute_globalstep() -- Execute activate/change actions
+
+		-- Makes an object from the last three effector events in the list for use with assert.same.
+		-- This is necessary to ignore the ordering of events.
+		local function event_tester(list)
+			local o = {list[#list - 2], list[#list - 1], list[#list - 0]}
+			table.sort(o, function(a, b)
+				local fmt = "%s %d %d %d"
+				return fmt:format(a[1], a[2].x, a[2].y, a[2].z) < fmt:format(b[1], b[2].x, b[2].y, b[2].z)
+			end)
+			return o
+		end
+
+		mesecon._test_place(pos_a, "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		mineunit:execute_globalstep() -- Execute receptor_on/receptor_off actions
+		mineunit:execute_globalstep() -- Execute activate/deactivate/change actions
+		assert.equal("mesecons_fpga:fpga0110", world.get_node(pos).name)
+		assert.same(event_tester({{"on", pos_b}, {"on", pos_c}, {"off", pos_d}}), event_tester(mesecon._test_effector_events))
+
+		mesecon._test_dig(pos_a)
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		mineunit:execute_globalstep() -- Execute receptor_on/receptor_off actions
+		mineunit:execute_globalstep() -- Execute activate/deactivate/change actions
+		assert.equal("mesecons_fpga:fpga1000", world.get_node(pos).name)
+		assert.same(event_tester({{"off", pos_b}, {"off", pos_c}, {"on", pos_d}}), event_tester(mesecon._test_effector_events))
+	end)
+
+	it("considers past outputs in determining inputs", function()
+		-- Memory cell: Turning on A turns on C; turning on B turns off C.
+		mesecon._test_program_fpga(pos, {
+			{"A", "OR", "C", "0"},
+			{"B", "OR", "D", "1"},
+			{"NOT", "A", "2"},
+			{"NOT", "B", "3"},
+			{"0", "AND", "3", "C"},
+			{"1", "AND", "2", "D"},
+		})
+
+		mesecon._test_place(pos_a, "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on actions
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal("mesecons_fpga:fpga0100", world.get_node(pos).name)
+
+		mesecon._test_dig(pos_a)
+		mineunit:execute_globalstep() -- Execute receptor_off actions
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		assert.equal("mesecons_fpga:fpga0100", world.get_node(pos).name)
+
+		mesecon._test_place(pos_b, "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on actions
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal("mesecons_fpga:fpga1000", world.get_node(pos).name)
+
+		mesecon._test_dig(pos_b)
+		mineunit:execute_globalstep() -- Execute receptor_off actions
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		assert.equal("mesecons_fpga:fpga1000", world.get_node(pos).name)
+	end)
+end)

mesecons_fpga/spec/mineunit.conf

@@ -0,0 +1 @@
+fixture_paths = {"../.test_fixtures"}

mesecons_fpga/tool.lua

@@ -1,8 +1,10 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 return function(plg)
 
 
 minetest.register_tool("mesecons_fpga:programmer", {
-	description = "FPGA Programmer",
+	description = S("FPGA Programmer"),
 	inventory_image = "jeija_fpga_programmer.png",
 	stack_max = 1,
 	on_place = function(itemstack, placer, pointed_thing)
@@ -21,7 +23,7 @@ minetest.register_tool("mesecons_fpga:programmer", {
 			minetest.sound_play("mesecons_fpga_fail", { pos = placer:get_pos(), gain = 0.1, max_hear_distance = 4 }, true)
 			return itemstack
 		end
-		itemstack:set_metadata(meta:get_string("instr"))
+		itemstack:get_meta():set_string("", meta:get_string("instr"))
 		minetest.chat_send_player(placer:get_player_name(), "FPGA gate configuration was successfully copied!")
 		minetest.sound_play("mesecons_fpga_copy", { pos = placer:get_pos(), gain = 0.1, max_hear_distance = 4 }, true)
 
@@ -42,7 +44,7 @@ minetest.register_tool("mesecons_fpga:programmer", {
 			return itemstack
 		end
 
-		local imeta = itemstack:get_metadata()
+		local imeta = itemstack:get_meta():get_string("")
 		if imeta == "" then
 			minetest.chat_send_player(player_name, "Use shift+right-click to copy a gate configuration first.")
 			minetest.sound_play("mesecons_fpga_fail", { pos = user:get_pos(), gain = 0.1, max_hear_distance = 4 }, true)

mesecons_gamecompat/compat_mtg.lua

@@ -0,0 +1,75 @@
+--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",
+		"beds:bed_bottom",
+		"beds:bed_top",
+		"beds:fancy_bed_bottom",
+		"beds:fancy_bed_top",
+		"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

@@ -11,39 +11,30 @@ local nodebox = {
 	},
 }
 
-local function gate_rotate_rules(node, rules)
+local gate_get_output_rules = mesecon.horiz_rules_getter({{x = 1, y = 0, z = 0}})
-	for rotations = 0, node.param2 - 1 do
-		rules = mesecon.rotate_rules_left(rules)
-	end
-	return rules
-end
 
-local function gate_get_output_rules(node)
+local gate_get_input_rules_oneinput = mesecon.horiz_rules_getter({{x =-1, y = 0, z = 0}})
-	return gate_rotate_rules(node, {{x=1, y=0, z=0}})
-end
 
-local function gate_get_input_rules_oneinput(node)
+local gate_get_input_rules_twoinputs = mesecon.horiz_rules_getter({
-	return gate_rotate_rules(node, {{x=-1, y=0, z=0}})
+	{x = 0, y = 0, z = 1, name = "input1"},
-end
+	{x = 0, y = 0, z = -1, name = "input2"},
-
+})
-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 function set_gate(pos, node, state)
 	local gate = minetest.registered_nodes[node.name]
 
-	if mesecon.do_overheat(pos) then
+	local new_nodename = state and gate.onstate or gate.offstate
-		minetest.remove_node(pos)
+	minetest.swap_node(pos, {name = new_nodename, param2 = node.param2})
-		mesecon.receptor_off(pos, gate_get_output_rules(node))
+	if new_nodename ~= node.name then
-		minetest.add_item(pos, gate.drop)
+		if mesecon.do_overheat(pos) then
-	elseif state then
+			minetest.remove_node(pos)
-		minetest.swap_node(pos, {name = gate.onstate, param2=node.param2})
+			mesecon.receptor_off(pos, gate_get_output_rules(node))
-		mesecon.receptor_on(pos, gate_get_output_rules(node))
+			minetest.add_item(pos, gate.drop)
-	else
+		elseif state then
-		minetest.swap_node(pos, {name = gate.offstate, param2=node.param2})
+			mesecon.receptor_on(pos, gate_get_output_rules(node))
-		mesecon.receptor_off(pos, gate_get_output_rules(node))
+		else
+			mesecon.receptor_off(pos, gate_get_output_rules(node))
+		end
 	end
 end
 
@@ -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
-		local meta = minetest.get_meta(pos)
+		-- Inputs are stored in param2. Bit 5 is always set.
-		meta:set_int(link.name, newstate == "on" and 1 or 0)
+		-- input1 is bit 6 and input2 is bit 7.
-
+		local val1, val2
-		local val1 = meta:get_int("input1") == 1
+		if node.param2 >= 32 then
-		local val2 = meta:get_int("input2") == 1
+			-- 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)
+			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
@@ -78,12 +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 = default, 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

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 -- HYDRO_TURBINE
 -- Water turbine:
 -- Active if flowing >water< above it
@@ -17,13 +19,13 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_off", {
 	is_ground_content = false,
 	wield_scale = {x=0.75, y=0.75, z=0.75},
 	groups = {dig_immediate=2},
-	description="Water Turbine",
+	description = S("Water Turbine"),
 	paramtype = "light",
 	selection_box = {
 		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
 	}},
@@ -47,13 +49,13 @@ minetest.register_node("mesecons_hydroturbine:hydro_turbine_on", {
 	inventory_image = "jeija_hydro_turbine_inv.png",
 	drop = "mesecons_hydroturbine:hydro_turbine_off 1",
 	groups = {dig_immediate=2,not_in_creative_inventory=1},
-	description="Water Turbine",
+	description = S("Water Turbine"),
 	paramtype = "light",
 	selection_box = {
 		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
 	}},
@@ -64,8 +66,8 @@ 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"
+	local def = minetest.registered_items[name]
-	return (is_water and is_flowing)
+	return is_water and (def and def.liquidtype == "flowing")
 end
 
 minetest.register_abm({
@@ -97,9 +99,8 @@ nodenames = {"mesecons_hydroturbine:hydro_turbine_on"},
 minetest.register_craft({
 	output = "mesecons_hydroturbine:hydro_turbine_off 2",
 	recipe = {
-	{"","default:stick", ""},
+	{"","group:stick", ""},
-	{"default:stick", "default:steel_ingot", "default:stick"},
+	{"group:stick", "mesecons_gamecompat:steel_ingot", "group:stick"},
-	{"","default:stick", ""},
+	{"","group:stick", ""},
 	}
 })
-

mesecons_hydroturbine/locale/mesecons_hydroturbine.de.tr

@@ -0,0 +1,2 @@
+# textdomain: mesecons_hydroturbine
+Water Turbine=Wasserturbine

mesecons_hydroturbine/locale/mesecons_hydroturbine.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_hydroturbine
+
+### init.lua ###
+Water Turbine=Akva Turbino

mesecons_hydroturbine/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_hydroturbine
+
+### init.lua ###
+Water Turbine=

mesecons_hydroturbine/mod.conf

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

mesecons_insulated/init.lua

@@ -1,17 +1,13 @@
-local screwdriver_exists = minetest.global_exists("screwdriver")
+local S = minetest.get_translator(minetest.get_current_modname())
 
-local function insulated_wire_get_rules(node)
+local insulated_wire_get_rules = mesecon.horiz_rules_getter({
-	local rules = 	{{x = 1,  y = 0,  z = 0},
+	{x = 1, y = 0, z = 0},
-			 {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
 
 minetest.register_node("mesecons_insulated:insulated_on", {
 	drawtype = "nodebox",
-	description = "Straight Insulated Mesecon",
+	description = S("Straight Insulated Mesecon"),
 	tiles = {
 		"jeija_insulated_wire_sides_on.png",
 		"jeija_insulated_wire_sides_on.png",
@@ -36,19 +32,19 @@ 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", {
 	drawtype = "nodebox",
-	description = "Straight Insulated Mesecon",
+	description = S("Straight Insulated Mesecon"),
 	tiles = {
 		"jeija_insulated_wire_sides_off.png",
 		"jeija_insulated_wire_sides_off.png",
@@ -72,14 +68,14 @@ 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({

mesecons_insulated/locale/mesecons_insulated.de.tr

@@ -0,0 +1,2 @@
+# textdomain: mesecons_insulated
+Straight Insulated Mesecon=Isolierte Mesecongerade

mesecons_insulated/locale/mesecons_insulated.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_insulated
+
+### init.lua ###
+Straight Insulated Mesecon=Rekta Izolita Mesekonduktilo

mesecons_insulated/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_insulated
+
+### init.lua ###
+Straight Insulated Mesecon=

mesecons_insulated/mod.conf

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

mesecons_lamp/init.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 -- MESELAMPS
 -- A lamp is "is an electrical device used to create artificial light" (wikipedia)
 -- guess what?
@@ -26,7 +28,7 @@ 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})
@@ -50,8 +52,8 @@ minetest.register_node("mesecons_lamp:lamp_off", {
 	node_box = mesecon_lamp_box,
 	selection_box = mesecon_lamp_box,
 	groups = {dig_immediate=3, mesecon_receptor_off = 1, mesecon_effector_off = 1},
-	description = "Mesecon Lamp",
+	description = S("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})
@@ -64,8 +66,8 @@ minetest.register_node("mesecons_lamp:lamp_off", {
 minetest.register_craft({
 	output = "mesecons_lamp:lamp_off 1",
 	recipe = {
-		{"", "default:glass", ""},
+		{"", "mesecons_gamecompat:glass", ""},
-		{"group:mesecon_conductor_craftable", "default:steel_ingot", "group:mesecon_conductor_craftable"},
+		{"group:mesecon_conductor_craftable", "mesecons_gamecompat:steel_ingot", "group:mesecon_conductor_craftable"},
-		{"", "default:glass", ""},
+		{"", "mesecons_gamecompat:glass", ""},
 	}
 })

mesecons_lamp/locale/mesecons_lamp.de.tr

@@ -0,0 +1,2 @@
+# textdomain: mesecons_lamp
+Mesecon Lamp=Meseconlampe

mesecons_lamp/locale/mesecons_lamp.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_lamp
+
+### init.lua ###
+Mesecon Lamp=Mesekonduktila Lampo

mesecons_lamp/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_lamp
+
+### init.lua ###
+Mesecon Lamp=

mesecons_lamp/mod.conf

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

mesecons_lightstone/init.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local lightstone_rules = {
 	{x=0,  y=0,  z=-1},
 	{x=1,  y=0,  z=0},
@@ -23,7 +25,7 @@ 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 +40,7 @@ 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 +54,22 @@ 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("red", "mesecons_gamecompat:dye_red", "jeija_lightstone_red_off.png", "jeija_lightstone_red_on.png", S("Red Lightstone"))
-mesecon.lightstone_add("green", "dye:green", "jeija_lightstone_green_off.png", "jeija_lightstone_green_on.png", "Green Lightstone")
+mesecon.lightstone_add("green", "mesecons_gamecompat:dye_green", "jeija_lightstone_green_off.png", "jeija_lightstone_green_on.png", S("Green Lightstone"))
-mesecon.lightstone_add("blue", "dye:blue", "jeija_lightstone_blue_off.png", "jeija_lightstone_blue_on.png", "Blue Lightstone")
+mesecon.lightstone_add("blue", "mesecons_gamecompat:dye_blue", "jeija_lightstone_blue_off.png", "jeija_lightstone_blue_on.png", S("Blue Lightstone"))
-mesecon.lightstone_add("gray", "dye:grey", "jeija_lightstone_gray_off.png", "jeija_lightstone_gray_on.png", "Grey Lightstone")
+mesecon.lightstone_add("gray", "mesecons_gamecompat:dye_grey", "jeija_lightstone_gray_off.png", "jeija_lightstone_gray_on.png", S("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("darkgray", "mesecons_gamecompat:dye_dark_grey", "jeija_lightstone_darkgray_off.png", "jeija_lightstone_darkgray_on.png", S("Dark Grey Lightstone"))
-mesecon.lightstone_add("yellow", "dye:yellow", "jeija_lightstone_yellow_off.png", "jeija_lightstone_yellow_on.png", "Yellow Lightstone")
+mesecon.lightstone_add("yellow", "mesecons_gamecompat:dye_yellow", "jeija_lightstone_yellow_off.png", "jeija_lightstone_yellow_on.png", S("Yellow Lightstone"))
-mesecon.lightstone_add("orange", "dye:orange", "jeija_lightstone_orange_off.png", "jeija_lightstone_orange_on.png", "Orange Lightstone")
+mesecon.lightstone_add("orange", "mesecons_gamecompat:dye_orange", "jeija_lightstone_orange_off.png", "jeija_lightstone_orange_on.png", S("Orange Lightstone"))
-mesecon.lightstone_add("white", "dye:white", "jeija_lightstone_white_off.png", "jeija_lightstone_white_on.png", "White Lightstone")
+mesecon.lightstone_add("white", "mesecons_gamecompat:dye_white", "jeija_lightstone_white_off.png", "jeija_lightstone_white_on.png", S("White Lightstone"))
-mesecon.lightstone_add("pink", "dye:pink", "jeija_lightstone_pink_off.png", "jeija_lightstone_pink_on.png", "Pink Lightstone")
+mesecon.lightstone_add("pink", "mesecons_gamecompat:dye_pink", "jeija_lightstone_pink_off.png", "jeija_lightstone_pink_on.png", S("Pink Lightstone"))
-mesecon.lightstone_add("magenta", "dye:magenta", "jeija_lightstone_magenta_off.png", "jeija_lightstone_magenta_on.png", "Magenta Lightstone")
+mesecon.lightstone_add("magenta", "mesecons_gamecompat:dye_magenta", "jeija_lightstone_magenta_off.png", "jeija_lightstone_magenta_on.png", S("Magenta Lightstone"))
-mesecon.lightstone_add("cyan", "dye:cyan", "jeija_lightstone_cyan_off.png", "jeija_lightstone_cyan_on.png", "Cyan Lightstone")
+mesecon.lightstone_add("cyan", "mesecons_gamecompat:dye_cyan", "jeija_lightstone_cyan_off.png", "jeija_lightstone_cyan_on.png", S("Cyan Lightstone"))
-mesecon.lightstone_add("violet", "dye:violet", "jeija_lightstone_violet_off.png", "jeija_lightstone_violet_on.png", "Violet Lightstone")
+mesecon.lightstone_add("violet", "mesecons_gamecompat:dye_violet", "jeija_lightstone_violet_off.png", "jeija_lightstone_violet_on.png", S("Violet Lightstone"))

mesecons_lightstone/locale/mesecons_lightstone.de.tr

@@ -0,0 +1,13 @@
+# textdomain: mesecons_lightstone
+Red Lightstone=Roter Leuchtstein
+Green Lightstone=Grüner Leuchtstein
+Blue Lightstone=Blauer Leuchtstein
+Grey Lightstone=Grauer Leuchtstein
+Dark Grey Lightstone=Dunkelgrauer Leuchtstein
+Yellow Lightstone=Gelber Leuchtstein
+Orange Lightstone=Orange Leuchtstein
+White Lightstone=Weißer Leuchtstein
+Pink Lightstone=Rosa Leuchtstein
+Magenta Lightstone=Magenta Leuchtstein
+Cyan Lightstone=Türkiser Leuchtstein
+Violet Lightstone=Violetter Leuchtstein

mesecons_lightstone/locale/mesecons_lightstone.eo.tr

@@ -0,0 +1,15 @@
+# textdomain: mesecons_lightstone
+
+### init.lua ###
+Red Lightstone=Ruĝa Lumŝtono
+Green Lightstone=Verda Lumŝtono
+Blue Lightstone=Blua Lumŝtono
+Grey Lightstone=Griza Lumŝtono
+Dark Grey Lightstone=Malhela Griza Lumŝtono
+Yellow Lightstone=Flava Lumŝtono
+Orange Lightstone=Oranĝa Lumŝtono
+White Lightstone=Blanka Lumŝtono
+Pink Lightstone=Rozkolora Lumŝtono
+Magenta Lightstone=Magenta Lumŝtono
+Cyan Lightstone=Cejana Lumŝtono
+Violet Lightstone=Viola Lumŝtono

mesecons_lightstone/locale/template.txt

@@ -0,0 +1,15 @@
+# textdomain: mesecons_lightstone
+
+### init.lua ###
+Red Lightstone=
+Green Lightstone=
+Blue Lightstone=
+Grey Lightstone=
+Dark Grey Lightstone=
+Yellow Lightstone=
+Orange Lightstone=
+White Lightstone=
+Pink Lightstone=
+Magenta Lightstone=
+Cyan Lightstone=
+Violet Lightstone=

mesecons_lightstone/mod.conf

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

mesecons_luacontroller/init.lua

@@ -28,6 +28,8 @@
 -- (see where local env is defined)
 -- Something nice to play is is appending minetest.env to it.
 
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local BASENAME = "mesecons_luacontroller:luacontroller"
 
 local rules = {
@@ -201,11 +203,13 @@ end
 -------------------------
 
 local function safe_print(param)
-	local string_meta = getmetatable("")
+	if mesecon.setting("luacontroller_print_behavior", "log") == "log" then
-	local sandbox = string_meta.__index
+		local string_meta = getmetatable("")
-	string_meta.__index = string -- Leave string sandbox temporarily
+		local sandbox = string_meta.__index
-	print(dump(param))
+		string_meta.__index = string -- Leave string sandbox temporarily
-	string_meta.__index = sandbox -- Restore string sandbox
+		minetest.log("action", string.format("[mesecons_luacontroller] print(%s)", dump(param)))
+		string_meta.__index = sandbox -- Restore string sandbox
+	end
 end
 
 local function safe_date()
@@ -234,6 +238,16 @@ local function safe_string_find(...)
 	return string.find(...)
 end
 
+-- do not allow pattern matching in string.split (see string.find for details)
+local function safe_string_split(...)
+	if select(5, ...) then
+		debug.sethook() -- Clear hook
+		error("string.split: 'sep_is_pattern' (fifth parameter) may not be used in a Luacontroller")
+	end
+
+	return string.split(...)
+end
+
 local function remove_functions(x)
 	local tp = type(x)
 	if tp == "function" then
@@ -374,7 +388,10 @@ local function clean_and_weigh_digiline_message(msg, back_references)
 		return msg, #msg + 25
 	elseif t == "number" then
 		-- Numbers are passed by value so need not be touched, and cost 8 bytes
-		-- as all numbers in Lua are doubles.
+		-- as all numbers in Lua are doubles. NaN values are removed.
+		if msg ~= msg then
+			return nil, 0
+		end
 		return msg, 8
 	elseif t == "boolean" then
 		-- Booleans are passed by value so need not be touched, and cost 1
@@ -470,7 +487,12 @@ 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)
@@ -498,6 +520,7 @@ local function create_environment(pos, mem, event, itbl, send_warning)
 			reverse = string.reverse,
 			sub = string.sub,
 			find = safe_string_find,
+			split = safe_string_split,
 		},
 		math = {
 			abs = math.abs,
@@ -627,6 +650,7 @@ 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
@@ -845,7 +869,7 @@ for d = 0, 1 do
 	}
 
 	minetest.register_node(node_name, {
-		description = "Luacontroller",
+		description = S("Luacontroller"),
 		drawtype = "nodebox",
 		tiles = {
 			top,
@@ -865,7 +889,7 @@ 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
@@ -914,7 +938,7 @@ 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/locale/mesecons_luacontroller.de.tr

@@ -0,0 +1,2 @@
+# textdomain: mesecons_luacontroller
+Luacontroller=Luacontroller

mesecons_luacontroller/locale/mesecons_luacontroller.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_luacontroller
+
+### init.lua ###
+Luacontroller=Luaregilo

mesecons_luacontroller/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_luacontroller
+
+### init.lua ###
+Luacontroller=

mesecons_luacontroller/mod.conf

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

mesecons_luacontroller/spec/lightweight_interrupt_spec.lua

@@ -0,0 +1,38 @@
+require("mineunit")
+
+-- This test is done in a separate file since it requires different configuration at startup.
+mineunit("core")
+minetest.settings:set("mesecon.luacontroller_lightweight_interrupts", "true")
+
+fixture("mesecons_luacontroller")
+
+describe("LuaController lightweight interrupt", function()
+	local pos = {x = 0, y = 0, z = 0}
+
+	before_each(function()
+		mesecon._test_place(pos, "mesecons_luacontroller:luacontroller0000")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("works", function()
+		mesecon._test_program_luac(pos, [[
+			if event.type == "program" then
+				interrupt(5)
+				interrupt(10)
+			elseif event.type == "interrupt" then
+				port.a = not pin.a
+			end
+		]])
+		mineunit:execute_globalstep(0.1)
+		mineunit:execute_globalstep(9)
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+		mineunit:execute_globalstep(1)
+		mineunit:execute_globalstep(0.1)
+		assert.equal("mesecons_luacontroller:luacontroller0001", world.get_node(pos).name)
+	end)
+end)

mesecons_luacontroller/spec/luac_spec.lua

@@ -0,0 +1,176 @@
+require("mineunit")
+
+fixture("mesecons_luacontroller")
+
+-- Digiline is not tested, since that would require the digiline mod.
+
+describe("LuaController", function()
+	local pos = {x = 0, y = 0, z = 0}
+	local pos_a = {x = -1, y = 0, z = 0}
+
+	before_each(function()
+		mesecon._test_place(pos, "mesecons_luacontroller:luacontroller0000")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("rejects binary code", function()
+		local ok = mesecon._test_program_luac(pos, string.dump(function() end))
+		assert.is_false(ok)
+	end)
+
+	it("I/O", function()
+		mesecon._test_place(pos_a, "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		mesecon._test_program_luac(pos, [[
+			port.a = not pin.a
+			port.b = not pin.b
+			port.c = not pin.c
+			port.d = not pin.d
+		]])
+		assert.equal("mesecons_luacontroller:luacontroller1110", world.get_node(pos).name)
+		mesecon._test_dig(pos_a)
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		mineunit:execute_globalstep() -- Execute deactivate/change actions
+		assert.equal("mesecons_luacontroller:luacontroller0001", world.get_node(pos).name)
+	end)
+
+	it("memory", function()
+		mesecon._test_program_luac(pos, [[
+			if not mem.x then
+				mem.x = {}
+				mem.x[mem.x] = {true, "", 1.2}
+			else
+				local b, s, n = unpack(mem.x[mem.x])
+				if b == true and s == "" and n == 1.2 then
+					port.d = true
+				end
+			end
+		]])
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+		mesecon._test_place(pos_a, "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+		assert.equal("mesecons_luacontroller:luacontroller1000", world.get_node(pos).name)
+	end)
+
+	it("interrupts without IDs", function()
+		mesecon._test_program_luac(pos, [[
+			if event.type == "program" then
+				interrupt(4)
+				interrupt(8)
+			elseif event.type == "interrupt" then
+				port.a = not pin.a
+			end
+		]])
+		mineunit:execute_globalstep(0.1)
+		mineunit:execute_globalstep(3)
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+		mineunit:execute_globalstep(1)
+		mineunit:execute_globalstep(0.1)
+		assert.equal("mesecons_luacontroller:luacontroller0001", world.get_node(pos).name)
+		mineunit:execute_globalstep(3)
+		assert.equal("mesecons_luacontroller:luacontroller0001", world.get_node(pos).name)
+		mineunit:execute_globalstep(1)
+		mineunit:execute_globalstep(0.1)
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+	end)
+
+	it("interrupts with IDs", function()
+		mesecon._test_program_luac(pos, [[
+			if event.type == "program" then
+				interrupt(2, "a")
+				interrupt(4, "a")
+				interrupt(16, "b")
+			elseif event.type == "interrupt" then
+				if event.iid == "a" then
+					interrupt(5, "b")
+					interrupt(4, "b")
+				end
+				port.a = not pin.a
+			end
+		]])
+		mineunit:execute_globalstep(0.1)
+		mineunit:execute_globalstep(3)
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+		mineunit:execute_globalstep(1)
+		mineunit:execute_globalstep(0.1)
+		assert.equal("mesecons_luacontroller:luacontroller0001", world.get_node(pos).name)
+		mineunit:execute_globalstep(3)
+		assert.equal("mesecons_luacontroller:luacontroller0001", world.get_node(pos).name)
+		mineunit:execute_globalstep(1)
+		mineunit:execute_globalstep(0.1)
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+	end)
+
+	it("limits interrupt ID size", function()
+		mesecon._test_program_luac(pos, [[
+			if event.type == "program" then
+				interrupt(0, (" "):rep(257))
+			elseif event.type == "interrupt" then
+				port.a = not pin.a
+			end
+		]])
+		mineunit:execute_globalstep(3)
+		mineunit:execute_globalstep(3)
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+	end)
+
+	it("string.rep", function()
+		mesecon._test_program_luac(pos, [[
+			(" "):rep(64000)
+			port.a = true
+		]])
+		assert.equal("mesecons_luacontroller:luacontroller0001", world.get_node(pos).name)
+		mesecon._test_program_luac(pos, [[
+			(" "):rep(64001)
+			port.b = true
+		]])
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+	end)
+
+	it("string.find", function()
+		mesecon._test_program_luac(pos, [[
+			port.a = (" a"):find("a", nil, true) == 2
+		]])
+		assert.equal("mesecons_luacontroller:luacontroller0001", world.get_node(pos).name)
+		mesecon._test_program_luac(pos, [[
+			(" a"):find("a", nil)
+			port.b = true
+		]])
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+	end)
+
+	it("overheats", function()
+		mesecon._test_program_luac(pos, [[
+			interrupt(0)
+			interrupt(0)
+		]])
+		mineunit:execute_globalstep() -- Execute 2 interrupts
+		mineunit:execute_globalstep() -- Execute 4 interrupts
+		mineunit:execute_globalstep() -- Execute 8 interrupts
+		mineunit:execute_globalstep() -- Execute 16 interrupts
+		assert.equal("mesecons_luacontroller:luacontroller_burnt", world.get_node(pos).name)
+	end)
+
+	it("limits memory", function()
+		mesecon._test_program_luac(pos, [[
+			port.a = true
+			mem.x = (" "):rep(50000) .. (" "):rep(50000)
+		]])
+		assert.equal("mesecons_luacontroller:luacontroller_burnt", world.get_node(pos).name)
+	end)
+
+	it("limits run time", function()
+		mesecon._test_program_luac(pos, [[
+			port.a = true
+			for i = 1, 1000000 do end
+		]])
+		assert.equal("mesecons_luacontroller:luacontroller0000", world.get_node(pos).name)
+	end)
+end)

mesecons_luacontroller/spec/mineunit.conf

@@ -0,0 +1 @@
+fixture_paths = {"../.test_fixtures"}