Merge remote-tracking branch 'upstream/master'

.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

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

@@ -542,11 +542,14 @@ function mesecon.turnoff(pos, link)
 	end
 
 	for _, sig in ipairs(signals) do
+		-- If sig.depth is 1, it has not yet been checked that the power source is actually off.
+		if sig.depth > 1 or not mesecon.is_powered(sig.pos, sig.link) then
 			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
 
 	return true
 end

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/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_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
@@ -20,7 +22,7 @@ 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",

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_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)
@@ -45,7 +46,7 @@ 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))
@@ -92,7 +93,7 @@ minetest.register_node("mesecons_button:button_on", {
     },
 	groups = {dig_immediate=2, not_in_creative_inventory=1, mesecon_needs_receiver = 1},
 	drop = 'mesecons_button:button_off',
-	description = "Button",
+	description = S("Button"),
 	sounds = mesecon.node_sound.stone,
 	mesecons = {receptor = {
 		state = mesecon.state.on,

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_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,

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_delayer/init.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 -- Function that get the input/output rules of the delayer
 local delayer_get_output_rules = mesecon.horiz_rules_getter({{x = 1, y = 0, z = 0}})
 
@@ -69,7 +71,7 @@ if i > 1 then
 end
 
 local off_state = {
-	description = "Delayer",
+	description = S("Delayer"),
 	tiles = {
 		"mesecons_delayer_off_"..tostring(i)..".png",
 		"mesecons_delayer_bottom.png",
@@ -112,7 +114,7 @@ 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",

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_detector/init.lua

@@ -1,3 +1,5 @@
+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"
@@ -71,7 +73,7 @@ minetest.register_node("mesecons_detector:object_detector_off", {
 	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
@@ -247,7 +249,7 @@ minetest.register_node("mesecons_detector:node_detector_off", {
 	is_ground_content = false,
 	walkable = true,
 	groups = {cracky=3},
-	description="Node Detector",
+	description = S("Node Detector"),
 	mesecons = {receptor = {
 		state = mesecon.state.off
 	}},

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_extrawires/corner.lua

@@ -1,3 +1,5 @@
+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 },
@@ -36,7 +38,7 @@ minetest.register_node("mesecons_extrawires:corner_on", {
 
 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 },
@@ -67,3 +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 = {
@@ -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",
@@ -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",
@@ -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",

mesecons_extrawires/doublecorner.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local doublecorner_selectionbox = {
 	type = "fixed",
 	fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
@@ -31,7 +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 },

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 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local mese_nodename = minetest.registered_aliases["mesecons_gamecompat:mese"]
 if mese_nodename then
 	-- Convert placeholders.
@@ -6,7 +8,7 @@ else
 	-- Register placeholder.
 	mese_nodename = "mesecons_extrawires:mese"
 	minetest.register_node("mesecons_extrawires:mese", {
-		description = "Mese Wire",
+		description = S("Mese Wire"),
 		tiles = {"mesecons_wire_off.png"},
 		paramtype = "light",
 		light_source = 3,

mesecons_extrawires/tjunction.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local tjunction_nodebox = {
 	type = "fixed",
 	-- ±0.001 is to prevent z-fighting
@@ -48,7 +50,7 @@ minetest.register_node("mesecons_extrawires:tjunction_on", {
 
 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",

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}
@@ -77,7 +79,7 @@ end
 
 -- Vertical wire
 mesecon.register_node("mesecons_extrawires:vertical", {
-	description = "Vertical Mesecon",
+	description = S("Vertical Mesecon"),
 	drawtype = "nodebox",
 	walkable = false,
 	paramtype = "light",
@@ -110,7 +112,7 @@ 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",
@@ -142,7 +144,7 @@ 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",

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

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/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_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
@@ -17,7 +19,7 @@ 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",
@@ -47,7 +49,7 @@ 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",
@@ -97,9 +99,8 @@ nodenames = {"mesecons_hydroturbine:hydro_turbine_on"},
 minetest.register_craft({
 	output = "mesecons_hydroturbine:hydro_turbine_off 2",
 	recipe = {
-	{"","grup:stick", ""},
+	{"","group:stick", ""},
 	{"group:stick", "mesecons_gamecompat:steel_ingot", "group:stick"},
 	{"","group:stick", ""},
 	}
 })
-

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_insulated/init.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local insulated_wire_get_rules = mesecon.horiz_rules_getter({
 	{x = 1, y = 0, z = 0},
 	{x = -1, y = 0, z = 0},
@@ -5,7 +7,7 @@ local insulated_wire_get_rules = mesecon.horiz_rules_getter({
 
 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",
@@ -42,7 +44,7 @@ minetest.register_node("mesecons_insulated:insulated_on", {
 
 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",

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_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?
@@ -50,7 +52,7 @@ 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 = mesecon.node_sound.glass,
 	mesecons = {effector = {
 		action_on = function (pos, node)

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_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},
@@ -59,15 +61,15 @@ function mesecon.lightstone_add(name, base_item, texture_off, texture_on, desc)
 end
 
 
-mesecon.lightstone_add("red", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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", "mesecons_gamecompat: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.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_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)
+	if mesecon.setting("luacontroller_print_behavior", "log") == "log" then
 		local string_meta = getmetatable("")
 		local sandbox = string_meta.__index
 		string_meta.__index = string -- Leave string sandbox temporarily
-	print(dump(param))
+		minetest.log("action", string.format("[mesecons_luacontroller] print(%s)", dump(param)))
 		string_meta.__index = sandbox -- Restore string sandbox
+	end
 end
 
 local function safe_date()
@@ -851,7 +855,7 @@ for d = 0, 1 do
 	}
 
 	minetest.register_node(node_name, {
-		description = "Luacontroller",
+		description = S("Luacontroller"),
 		drawtype = "nodebox",
 		tiles = {
 			top,

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/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"}

mesecons_materials/init.lua

@@ -1,14 +1,16 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 -- Glue and fiber
 minetest.register_craftitem("mesecons_materials:glue", {
 	image = "mesecons_glue.png",
 	on_place_on_ground = minetest.craftitem_place_item,
-	description="Glue",
+	description = S("Glue"),
 })
 
 minetest.register_craftitem("mesecons_materials:fiber", {
 	image = "mesecons_fiber.png",
 	on_place_on_ground = minetest.craftitem_place_item,
-	description="Fiber",
+	description = S("Fiber"),
 })
 
 minetest.register_craft({
@@ -29,7 +31,7 @@ minetest.register_craft({
 minetest.register_craftitem("mesecons_materials:silicon", {
 	image = "mesecons_silicon.png",
 	on_place_on_ground = minetest.craftitem_place_item,
-	description="Silicon",
+	description = S("Silicon"),
 })
 
 minetest.register_craft({

mesecons_materials/locale/mesecons_materials.eo.tr

@@ -0,0 +1,6 @@
+# textdomain: mesecons_materials
+
+### init.lua ###
+Glue=Gluo
+Fiber=Fibro
+Silicon=Silicio

mesecons_materials/locale/template.txt

@@ -0,0 +1,6 @@
+# textdomain: mesecons_materials
+
+### init.lua ###
+Glue=
+Fiber=
+Silicon=

mesecons_microcontroller/init.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local EEPROM_SIZE = 255
 
 local microc_rules = {}
@@ -57,7 +59,7 @@ if nodename ~= "mesecons_microcontroller:microcontroller0000" then
 end
 
 minetest.register_node(nodename, {
-	description = "Microcontroller",
+	description = S("Microcontroller"),
 	drawtype = "nodebox",
 	tiles = {
 		top,

mesecons_microcontroller/locale/mesecons_microcontroller.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_microcontroller
+
+### init.lua ###
+Microcontroller=Mikroregilo

mesecons_microcontroller/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_microcontroller
+
+### init.lua ###
+Microcontroller=

mesecons_movestones/init.lua

@@ -8,6 +8,8 @@
 -- Pushes all block in front of it
 -- Pull all blocks in its back
 
+local S = minetest.get_translator(minetest.get_current_modname())
+
 -- settings:
 local timer_interval = 1 / mesecon.setting("movestone_speed", 3)
 local max_push = mesecon.setting("movestone_max_push", 50)
@@ -128,7 +130,7 @@ mesecon.register_movestone("mesecons_movestones:movestone", {
 		"jeija_movestone_arrows.png",
 	},
 	groups = {cracky = 3},
-    description = "Movestone",
+    description = S("Movestone"),
 	sounds = mesecon.node_sound.stone
 }, false, false)
 
@@ -142,7 +144,7 @@ mesecon.register_movestone("mesecons_movestones:sticky_movestone", {
 		"jeija_sticky_movestone.png",
 	},
 	groups = {cracky = 3},
-    description = "Sticky Movestone",
+    description = S("Sticky Movestone"),
 	sounds = mesecon.node_sound.stone,
 }, true, false)
 
@@ -156,7 +158,7 @@ mesecon.register_movestone("mesecons_movestones:movestone_vertical", {
 		"jeija_movestone_arrows.png^[transformR90",
 	},
 	groups = {cracky = 3},
-    description = "Vertical Movestone",
+    description = S("Vertical Movestone"),
 	sounds = mesecon.node_sound.stone
 }, false, true)
 
@@ -170,7 +172,7 @@ mesecon.register_movestone("mesecons_movestones:sticky_movestone_vertical", {
 		"jeija_movestone_arrows.png^[transformR90",
 	},
 	groups = {cracky = 3},
-    description = "Vertical Sticky Movestone",
+    description = S("Vertical Sticky Movestone"),
 	sounds = mesecon.node_sound.stone,
 }, true, true)
 

mesecons_movestones/locale/mesecons_movestones.eo.tr

@@ -0,0 +1,7 @@
+# textdomain: mesecons_movestones
+
+### init.lua ###
+Movestone=Movŝtono
+Sticky Movestone=Glueca Movŝtono
+Vertical Movestone=Vertikala Movŝtono
+Vertical Sticky Movestone=Vertikala Glueca Movŝtono

mesecons_movestones/locale/template.txt

@@ -0,0 +1,7 @@
+# textdomain: mesecons_movestones
+
+### init.lua ###
+Movestone=
+Sticky Movestone=
+Vertical Movestone=
+Vertical Sticky Movestone=

mesecons_mvps/spec/mineunit.conf

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

mesecons_mvps/spec/node_spec.lua

@@ -0,0 +1,297 @@
+require("mineunit")
+
+fixture("mesecons_mvps")
+
+world.set_default_node("air")
+
+describe("node movement", function()
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	it("works with no moved nodes", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+
+		assert.same({true, {}, {}}, {mesecon.mvps_push(pos, dir, 1, "")})
+		assert.same({true, {}, {}}, {mesecon.mvps_pull_all(pos, dir, 1, "")})
+		assert.same({true, {}, {}}, {mesecon.mvps_pull_single(pos, dir, 1, "")})
+	end)
+
+	it("works with simple stack", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+		world.set_node(vector.add(pos, dir), "mesecons:test_conductor_off")
+
+		assert.is_true((mesecon.mvps_push(pos, dir, 2, "")))
+		assert.equal("air", world.get_node(pos).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.add(pos, dir)).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.add(pos, vector.multiply(dir, 2))).name)
+
+		assert.is_true((mesecon.mvps_pull_all(vector.add(pos, dir), vector.multiply(dir, -1), 2, "")))
+		assert.equal("mesecons:test_conductor_off", world.get_node(pos).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.add(pos, dir)).name)
+		assert.equal("air", world.get_node(vector.add(pos, vector.multiply(dir, 2))).name)
+
+		assert.is_true((mesecon.mvps_pull_single(pos, vector.multiply(dir, -1), 1, "")))
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.subtract(pos, dir)).name)
+		assert.equal("air", world.get_node(pos).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.add(pos, dir)).name)
+	end)
+
+	it("works with sticky nodes", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 0, y = 1, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+		world.set_node(vector.offset(pos, 0, 1, 0), "mesecons_mvps:test_sticky")
+		world.set_node(vector.offset(pos, 1, 1, 0), "mesecons:test_conductor_off")
+		world.set_node(vector.offset(pos, 1, 2, 0), "mesecons:test_conductor_off")
+
+		assert.is_true((mesecon.mvps_push(pos, dir, 4, "")))
+		assert.equal("air", world.get_node(vector.offset(pos, 1, 1, 0)).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.offset(pos, 1, 2, 0)).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.offset(pos, 1, 3, 0)).name)
+
+		assert.is_true((mesecon.mvps_pull_all(vector.add(pos, dir), vector.multiply(dir, -1), 4, "")))
+		assert.equal("air", world.get_node(vector.offset(pos, 1, 0, 0)).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.offset(pos, 1, 1, 0)).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.offset(pos, 1, 2, 0)).name)
+
+		assert.is_true((mesecon.mvps_pull_single(pos, vector.multiply(dir, -1), 3, "")))
+		assert.equal("air", world.get_node(vector.offset(pos, 1, -1, 0)).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.offset(pos, 1, 0, 0)).name)
+		assert.equal("air", world.get_node(vector.offset(pos, 1, 1, 0)).name)
+	end)
+
+	it("respects maximum", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+		world.set_node(vector.add(pos, dir), "mesecons:test_conductor_off")
+
+		assert.is_true(not mesecon.mvps_push(pos, dir, 1, ""))
+	end)
+
+	it("is blocked by basic stopper", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+		world.set_node(pos, "mesecons_mvps:test_stopper")
+
+		assert.is_true(not mesecon.mvps_push(pos, dir, 1, ""))
+	end)
+
+	it("is blocked by conditional stopper", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+
+		world.set_node(pos, {name = "mesecons_mvps:test_stopper_cond", param2 = 0})
+		assert.is_true(not mesecon.mvps_push(pos, dir, 1, ""))
+
+		world.set_node(pos, {name = "mesecons_mvps:test_stopper_cond", param2 = 1})
+		assert.is_true((mesecon.mvps_push(pos, dir, 1, "")))
+	end)
+
+	-- TODO: I think this is supposed to work?
+	pending("is blocked by ignore", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+		world.set_node(vector.add(pos, dir), "ignore")
+
+		assert.is_true(not mesecon.mvps_push(pos, dir, 1, ""))
+	end)
+
+	it("moves metadata", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+		minetest.get_meta(pos):set_string("foo", "bar")
+		minetest.get_node_timer(pos):set(12, 34)
+
+		mesecon.mvps_push(pos, dir, 1, "")
+		assert.equal("bar", minetest.get_meta(vector.add(pos, dir)):get("foo"))
+		local moved_timer = minetest.get_node_timer(vector.add(pos, dir))
+		assert.equal(12, moved_timer:get_timeout())
+		assert.equal(34, moved_timer:get_elapsed())
+		moved_timer:stop()
+		assert.same({}, minetest.get_meta(pos):to_table().fields)
+		assert.is_false(minetest.get_node_timer(pos):is_started())
+	end)
+
+	it("calls move callbacks", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+		world.set_node(pos, {name = "mesecons_mvps:test_on_move", param2 = 123})
+		minetest.get_meta(pos):set_string("foo", "bar")
+		local move_info = {vector.add(pos, dir), world.get_node(pos), pos, minetest.get_meta(pos):to_table()}
+
+		mesecon.mvps_push(pos, dir, 1, "")
+		assert.equal(1, #mesecon._test_moves)
+		assert.same(move_info, mesecon._test_moves[1])
+	end)
+
+	it("executes autoconnect hooks", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+
+		mesecon.mvps_push(pos, dir, 1, "")
+		mineunit:execute_globalstep() -- Execute delayed autoconnect hook
+		assert.equal(2, #mesecon._test_autoconnects)
+	end)
+
+	it("updates moved receptors", function()
+		local pos1 = {x = 0, y = 0, z = 0}
+		local pos2 = vector.offset(pos1, 0, 1, 0)
+		local pos3 = vector.offset(pos1, 2, 0, 0)
+		local pos4 = vector.offset(pos1, 0, 0, 1)
+		local dir = {x = 1, y = 0, z = 0}
+		mesecon._test_place(pos1, "mesecons:test_receptor_on")
+		mesecon._test_place(pos2, "mesecons:test_conductor_off")
+		mesecon._test_place(pos3, "mesecons:test_conductor_off")
+		mesecon._test_place(pos4, "mesecons:test_conductor_off")
+		mesecon._test_place(vector.add(pos4, dir), "mesecons:test_conductor_off")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+
+		mesecon.mvps_push(pos1, dir, 1, "")
+		mineunit:execute_globalstep() -- Execute receptor_on/receptor_off actions
+		assert.equal("mesecons:test_conductor_off", world.get_node(pos2).name)
+		assert.equal("mesecons:test_conductor_on", world.get_node(pos3).name)
+		assert.equal("mesecons:test_conductor_on", world.get_node(pos4).name)
+	end)
+
+	it("updates moved conductors", function()
+		local pos1 = {x = 0, y = 0, z = 0}
+		local pos2 = vector.offset(pos1, 0, 1, 0)
+		local pos3 = vector.offset(pos1, 0, -1, 0)
+		local dir = {x = 1, y = 0, z = 0}
+		mesecon._test_place(pos1, "mesecons:test_conductor_off")
+		mesecon._test_place(pos2, "mesecons:test_receptor_on")
+		mesecon._test_place(pos3, "mesecons:test_conductor_off")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+
+		mesecon.mvps_push(pos1, dir, 1, "")
+		mineunit:execute_globalstep() -- Execute receptor_off action
+		assert.equal("mesecons:test_conductor_off", world.get_node(vector.add(pos1, dir)).name)
+		assert.equal("mesecons:test_conductor_off", world.get_node(pos3).name)
+
+		mesecon.mvps_pull_all(vector.add(pos1, dir), vector.multiply(dir, -1), 1, "")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		assert.equal("mesecons:test_conductor_on", world.get_node(pos1).name)
+		assert.equal("mesecons:test_conductor_on", world.get_node(pos3).name)
+	end)
+
+	it("updates moved effectors", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+		mesecon._test_place(pos, "mesecons:test_effector")
+		mesecon._test_place(vector.offset(pos, 0, 1, 0), "mesecons:test_receptor_on")
+		mesecon._test_place(vector.add(pos, dir), "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+
+		mesecon.mvps_push(pos, dir, 2, "")
+		mineunit:execute_globalstep() -- Execute receptor_on/receptor_off actions
+		mineunit:execute_globalstep() -- Execute activate/deactivate/change actions
+		assert.equal(tonumber("10000001", 2), world.get_node(vector.add(pos, dir)).param2)
+
+		mineunit:execute_globalstep() -- Let the component cool down
+
+		mesecon.mvps_pull_single(vector.add(pos, dir), vector.multiply(dir, -1), 1, "")
+		mineunit:execute_globalstep() -- Execute receptor_on/receptor_off actions
+		mineunit:execute_globalstep() -- Execute activate/deactivate/change actions
+		assert.equal(tonumber("10000100", 2), world.get_node(pos).param2)
+	end)
+
+	-- Since turnon is called before turnoff when pushing, effectors may be incorrectly turned off.
+	it("does not overwrite turnon with receptor_off", function()
+		local pos = {x = 0, y = 0, z = 0}
+		local dir = {x = 1, y = 0, z = 0}
+		mesecon._test_place(pos, "mesecons:test_effector")
+		mesecon._test_place(vector.add(pos, dir), "mesecons:test_conductor_off")
+		mesecon._test_place(vector.add(pos, vector.multiply(dir, 2)), "mesecons:test_receptor_on")
+		mineunit:execute_globalstep() -- Execute receptor_on action
+		mineunit:execute_globalstep() -- Execute activate/change actions
+
+		mesecon.mvps_push(pos, dir, 3, "")
+		mineunit:execute_globalstep() -- Execute receptor_on/receptor_off actions
+		mineunit:execute_globalstep() -- Execute activate/deactivate/change actions
+		assert.equal(tonumber("10000001", 2), world.get_node(vector.add(pos, dir)).param2)
+	end)
+
+	-- mineunit doesn't yet implement minetest.check_for_falling.
+	pending("causes nodes to fall", function()
+	end)
+end)
+
+describe("protection", function()
+	teardown(function()
+		minetest.settings:remove("mesecon.mvps_protection_mode")
+	end)
+
+	after_each(function()
+		mesecon._test_reset()
+		world.clear()
+	end)
+
+	local protected_pos = {x = 1, y = 0, z = 0}
+	mineunit:protect(protected_pos, "Joe")
+
+	it("blocks movement", function()
+		minetest.settings:set("mesecon.mvps_protection_mode", "restrict")
+
+		local pos = {x = 0, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+
+		assert.same({false, "protected"}, {mesecon.mvps_push(pos, {x = 1, y = 0, z = 0}, 1, "Bob")})
+	end)
+
+	it("allows owner's movement", function()
+		minetest.settings:set("mesecon.mvps_protection_mode", "restrict")
+
+		local pos = {x = 0, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+
+		assert.is_true((mesecon.mvps_push(pos, {x = 1, y = 0, z = 0}, 1, "Joe")))
+	end)
+
+	it("'ignore'", function()
+		minetest.settings:set("mesecon.mvps_protection_mode", "ignore")
+
+		local pos = {x = 0, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+
+		assert.is_true((mesecon.mvps_push(pos, {x = 1, y = 0, z = 0}, 1, "Bob")))
+	end)
+
+	it("'normal'", function()
+		minetest.settings:set("mesecon.mvps_protection_mode", "normal")
+
+		local pos = {x = 0, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+
+		assert.same({false, "protected"}, {mesecon.mvps_push(pos, {x = 1, y = 0, z = 0}, 1, "")})
+
+		assert.is_true((mesecon.mvps_push(pos, {x = 0, y = 1, z = 0}, 1, "")))
+	end)
+
+	it("'compat'", function()
+		minetest.settings:set("mesecon.mvps_protection_mode", "compat")
+
+		local pos = {x = 0, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+
+		assert.is_true((mesecon.mvps_push(pos, {x = 1, y = 0, z = 0}, 1, "")))
+	end)
+
+	it("'restrict'", function()
+		minetest.settings:set("mesecon.mvps_protection_mode", "restrict")
+
+		local pos = {x = 0, y = 0, z = 0}
+		world.set_node(pos, "mesecons:test_conductor_off")
+
+		assert.same({false, "protected"}, {mesecon.mvps_push(pos, {x = 0, y = 1, z = 0}, 1, "")})
+	end)
+end)

mesecons_mvps/spec/object_spec.lua

@@ -0,0 +1,3 @@
+-- mineunit doesn't yet implement minetest.get_objects_inside_radius
+pending("object movement", function()
+end)

mesecons_noteblock/README.txt

@@ -0,0 +1,15 @@
+Credits of sound files:
+
+Note: Most sounds have not been used verbatim, but tweaked a little to be more suitable for the noteblock mod.
+
+* mesecons_noteblock_litecrash.ogg
+	* License: CC BY 3.0
+	* by freesound.org user ani_music
+	* Source: https://freesound.org/people/ani_music/sounds/219612/
+
+Everything else:
+Created by Mesecons authors, licensed CC BY 3.0.
+
+--------------------
+License links:
+* CC BY 3.0: http://creativecommons.org/licenses/by/3.0/

mesecons_noteblock/doc/noteblock/description.html

@@ -6,8 +6,8 @@ This effector makes a sound if powered and can be used for making music. Normall
 <tr><td>Chest or Locked Chest</td><td>Snare</td></tr>
 <tr><td>Any tree</td><td>Crash</td></tr>
 <tr><td>Any wooden planks</td><td>Lite Crash</td></tr>
-<tr><td>Coal Block</td><td>Explosion sound</td></tr>
+<tr><td>Coal Block</td><td>Explosion sound (fixed pitch)</td></tr>
-<tr><td>Lava Source</td><td>Fire sound</td></tr>
+<tr><td>Lava Source</td><td>Fire sound (fixed pitch)</td></tr>
 <tr><td>Steel Block</td><td>Piano (high pitch, one octave higher than normal)</td></tr>
 <tr><td>Any other block</td><td>Piano (low pitch)</td></tr>
 </table>

mesecons_noteblock/init.lua

@@ -1,5 +1,7 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 minetest.register_node("mesecons_noteblock:noteblock", {
-	description = "Noteblock",
+	description = S("Noteblock"),
 	tiles = {"mesecons_noteblock.png"},
 	is_ground_content = false,
 	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2},
@@ -18,6 +20,7 @@ minetest.register_node("mesecons_noteblock:noteblock", {
 			mesecon.noteblock_play(pos, node.param2)
 		end
 	}},
+	place_param2 = 11, -- initialize at C note
 	on_blast = mesecon.on_blastnode,
 })
 
@@ -43,7 +46,7 @@ local soundnames = {
 	"mesecons_noteblock_a",
 	"mesecons_noteblock_asharp",
 	"mesecons_noteblock_b",
-	"mesecons_noteblock_c"
+	"mesecons_noteblock_c" -- << noteblock is initialized here
 }
 
 local node_sounds = {}
@@ -72,6 +75,9 @@ mesecon.noteblock_play = function(pos, param2)
 	pos.y = pos.y-1
 	local nodeunder = minetest.get_node(pos).name
 	local soundname = node_sounds[nodeunder]
+	local use_pitch = true
+	local pitch
+	-- Special sounds
 	if not soundname then
 		for k,v in pairs(node_sounds_group) do
 			local g = minetest.get_item_group(nodeunder, k)
@@ -81,6 +87,7 @@ mesecon.noteblock_play = function(pos, param2)
 			end
 		end
 	end
+	-- Piano
 	if not soundname then
 		soundname = soundnames[param2]
 		if not soundname then
@@ -90,6 +97,17 @@ mesecon.noteblock_play = function(pos, param2)
 		if nodeunder == steelblock_nodename then
 			soundname = soundname.. 2
 		end
+		use_pitch = false
+	end
+	-- Disable pitch for fire and explode because they'd sound too odd
+	if soundname == "fire_fire" or soundname == "tnt_explode" then
+		use_pitch = false
+	end
+	if use_pitch then
+		-- Calculate pitch
+		-- Adding 1 to param2 because param2=11 is *lowest* pitch sound
+		local val = (param2+1)%12
+		pitch = 2^((val-6)/12)
 	end
 	pos.y = pos.y+1
 	if soundname == "fire_fire" then
@@ -97,6 +115,6 @@ mesecon.noteblock_play = function(pos, param2)
 		local handle = minetest.sound_play(soundname, {pos = pos, loop = true})
 		minetest.after(3.0, minetest.sound_fade, handle, -1.5, 0.0)
 	else
-		minetest.sound_play(soundname, {pos = pos}, true)
+		minetest.sound_play(soundname, {pos = pos, pitch = pitch}, true)
 	end
 end

mesecons_noteblock/locale/mesecons_noteblock.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_noteblock
+
+### init.lua ###
+Noteblock=Sonbloko

mesecons_noteblock/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_noteblock
+
+### init.lua ###
+Noteblock=

mesecons_pistons/init.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local specs = {
 	normal = {
 		offname = "mesecons_pistons:piston_normal_off",
@@ -265,7 +267,7 @@ local piston_on_box = {
 -- Normal (non-sticky) Pistons:
 -- offstate
 minetest.register_node("mesecons_pistons:piston_normal_off", {
-	description = "Piston",
+	description = S("Piston"),
 	tiles = {
 		"mesecons_piston_top.png",
 		"mesecons_piston_bottom.png",
@@ -290,7 +292,7 @@ minetest.register_node("mesecons_pistons:piston_normal_off", {
 
 -- onstate
 minetest.register_node("mesecons_pistons:piston_normal_on", {
-	description = "Activated Piston Base",
+	description = S("Activated Piston Base"),
 	drawtype = "nodebox",
 	tiles = {
 		"mesecons_piston_top.png",
@@ -319,7 +321,7 @@ minetest.register_node("mesecons_pistons:piston_normal_on", {
 
 -- pusher
 minetest.register_node("mesecons_pistons:piston_pusher_normal", {
-	description = "Piston Pusher",
+	description = S("Piston Pusher"),
 	drawtype = "nodebox",
 	tiles = {
 		"mesecons_piston_pusher_top.png",
@@ -344,7 +346,7 @@ minetest.register_node("mesecons_pistons:piston_pusher_normal", {
 -- Sticky ones
 -- offstate
 minetest.register_node("mesecons_pistons:piston_sticky_off", {
-	description = "Sticky Piston",
+	description = S("Sticky Piston"),
 	tiles = {
 		"mesecons_piston_top.png",
 		"mesecons_piston_bottom.png",
@@ -369,7 +371,7 @@ minetest.register_node("mesecons_pistons:piston_sticky_off", {
 
 -- onstate
 minetest.register_node("mesecons_pistons:piston_sticky_on", {
-	description = "Activated Sticky Piston Base",
+	description = S("Activated Sticky Piston Base"),
 	drawtype = "nodebox",
 	tiles = {
 		"mesecons_piston_top.png",
@@ -398,7 +400,7 @@ minetest.register_node("mesecons_pistons:piston_sticky_on", {
 
 -- pusher
 minetest.register_node("mesecons_pistons:piston_pusher_sticky", {
-	description = "Sticky Piston Pusher",
+	description = S("Sticky Piston Pusher"),
 	drawtype = "nodebox",
 	tiles = {
 		"mesecons_piston_pusher_top.png",

mesecons_pistons/locale/mesecons_pistons.eo.tr

@@ -0,0 +1,9 @@
+# textdomain: mesecons_pistons
+
+### init.lua ###
+Piston=Piŝto
+Activated Piston Base=Aktivigita Piŝta Bazo
+Piston Pusher=Piŝta Pushero
+Sticky Piston=Glueca Piŝto
+Activated Sticky Piston Base=Aktivigita Glueca Piŝta Bazo
+Sticky Piston Pusher=Glueca Piŝta Puŝilo

mesecons_pistons/locale/template.txt

@@ -0,0 +1,9 @@
+# textdomain: mesecons_pistons
+
+### init.lua ###
+Piston=
+Activated Piston Base=
+Piston Pusher=
+Sticky Piston=
+Activated Sticky Piston Base=
+Sticky Piston Pusher=

mesecons_powerplant/init.lua

@@ -1,6 +1,8 @@
 -- The POWER_PLANT
 -- Just emits power. always.
 
+local S = minetest.get_translator(minetest.get_current_modname())
+
 minetest.register_node("mesecons_powerplant:power_plant", {
 	drawtype = "plantlike",
 	visual_scale = 1,
@@ -11,7 +13,7 @@ minetest.register_node("mesecons_powerplant:power_plant", {
 	walkable = false,
 	groups = {dig_immediate=3, mesecon = 2},
 	light_source = minetest.LIGHT_MAX-9,
-	description="Power Plant",
+	description=S("Power Plant"),
 	selection_box = {
 		type = "fixed",
 		fixed = {-0.3, -0.5, -0.3, 0.3, -0.5+0.7, 0.3},

mesecons_powerplant/locale/mesecons_powerplant.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_powerplant
+
+### init.lua ###
+Power Plant=Elektra Planto

mesecons_powerplant/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_powerplant
+
+### init.lua ###
+Power Plant=

mesecons_pressureplates/init.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 local pp_box_off = {
 	type = "fixed",
 	fixed = { -7/16, -8/16, -7/16, 7/16, -7/16, 7/16 },
@@ -87,7 +89,7 @@ end
 
 mesecon.register_pressure_plate(
 	"mesecons_pressureplates:pressure_plate_wood",
-	"Wooden Pressure Plate",
+	S("Wooden Pressure Plate"),
 	{"jeija_pressure_plate_wood_off.png","jeija_pressure_plate_wood_off.png","jeija_pressure_plate_wood_off_edges.png"},
 	{"jeija_pressure_plate_wood_on.png","jeija_pressure_plate_wood_on.png","jeija_pressure_plate_wood_on_edges.png"},
 	"jeija_pressure_plate_wood_wield.png",
@@ -98,7 +100,7 @@ mesecon.register_pressure_plate(
 
 mesecon.register_pressure_plate(
 	"mesecons_pressureplates:pressure_plate_stone",
-	"Stone Pressure Plate",
+	S("Stone Pressure Plate"),
 	{"jeija_pressure_plate_stone_off.png","jeija_pressure_plate_stone_off.png","jeija_pressure_plate_stone_off_edges.png"},
 	{"jeija_pressure_plate_stone_on.png","jeija_pressure_plate_stone_on.png","jeija_pressure_plate_stone_on_edges.png"},
 	"jeija_pressure_plate_stone_wield.png",

mesecons_pressureplates/locale/mesecons_pressureplates.eo.tr

@@ -0,0 +1,5 @@
+# textdomain: mesecons_pressureplates
+
+### init.lua ###
+Wooden Pressure Plate=Ligna Prema Plato
+Stone Pressure Plate=Ŝtona Prema Plato

mesecons_pressureplates/locale/template.txt

@@ -0,0 +1,5 @@
+# textdomain: mesecons_pressureplates
+
+### init.lua ###
+Wooden Pressure Plate=
+Stone Pressure Plate=

mesecons_random/init.lua

@@ -1,3 +1,5 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 -- REMOVESTONE
 
 minetest.register_node("mesecons_random:removestone", {
@@ -5,7 +7,7 @@ minetest.register_node("mesecons_random:removestone", {
 	is_ground_content = false,
 	inventory_image = minetest.inventorycube("jeija_removestone_inv.png"),
 	groups = {cracky=3},
-	description="Removestone",
+	description = S("Removestone"),
 	sounds = mesecon.node_sound.stone,
 	mesecons = {effector = {
 		action_on = function (pos, node)
@@ -29,7 +31,7 @@ minetest.register_craft({
 -- GHOSTSTONE
 
 minetest.register_node("mesecons_random:ghoststone", {
-	description="Ghoststone",
+	description = S("Ghoststone"),
 	tiles = {"jeija_ghoststone.png"},
 	is_ground_content = false,
 	inventory_image = minetest.inventorycube("jeija_ghoststone_inv.png"),

mesecons_random/locale/mesecons_random.eo.tr

@@ -0,0 +1,5 @@
+# textdomain: mesecons_random
+
+### init.lua ###
+Removestone=Forigŝtono
+Ghoststone=Fantomŝtono

mesecons_random/locale/template.txt

@@ -0,0 +1,5 @@
+# textdomain: mesecons_random
+
+### init.lua ###
+Removestone=
+Ghoststone=

mesecons_solarpanel/init.lua

@@ -1,6 +1,8 @@
+local S = minetest.get_translator(minetest.get_current_modname())
+
 -- Solar Panel
 mesecon.register_node("mesecons_solarpanel:solar_panel", {
-	description = "Solar Panel",
+	description = S("Solar Panel"),
 	drawtype = "nodebox",
 	tiles = {"mesecons_solarpanel.png"},
 	inventory_image = "mesecons_solarpanel.png",

mesecons_solarpanel/locale/mesecons_solarpanel.eo.tr

@@ -0,0 +1,4 @@
+# textdomain: mesecons_solarpanel
+
+### init.lua ###
+Solar Panel=Suna Panelo

mesecons_solarpanel/locale/template.txt

@@ -0,0 +1,4 @@
+# textdomain: mesecons_solarpanel
+
+### init.lua ###
+Solar Panel=

mesecons_stickyblocks/init.lua

@@ -1,10 +1,12 @@
 -- Sticky blocks can be used together with pistons or movestones to push / pull
 -- structures that are "glued" together using sticky blocks
 
+local S = minetest.get_translator(minetest.get_current_modname())
+
 -- All sides sticky block
 minetest.register_node("mesecons_stickyblocks:sticky_block_all", {
 	-- TODO: Rename to “All-Faces Sticky Block” when other sticky blocks become available
-	description = "Sticky Block",
+	description = S("Sticky Block"),
 	tiles = {"mesecons_stickyblocks_sticky.png"},
 	is_ground_content = false,
 	groups = {choppy=3, oddly_breakable_by_hand=2},