Add mods: technic, moreores, paintings, Nyancat (Pbj_pup). Small fix: sandwiches

mods/technic_plus_beta/technic/machines/LV/alloy_furnace.lua

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+-- LV Alloy furnace
+local S = technic.getter
+local mat = technic.materials
+
+-- FIXME: kpoppel: I'd like to introduce an induction heating element here...
+minetest.register_craft({
+	output = 'technic:lv_alloy_furnace',
+	recipe = {
+		{mat.brick, mat.brick,          mat.brick},
+		{mat.brick, 'technic:machine_casing', mat.brick},
+		{mat.brick, 'technic:lv_cable',       mat.brick},
+	}
+})
+
+technic.register_base_machine("technic:lv_alloy_furnace", {
+	typename = "alloy",
+	description = S("@1 Alloy Furnace", S("LV")),
+	insert_object = technic.insert_object_unique_stack,
+	can_insert = technic.can_insert_unique_stack,
+	tier = "LV",
+	speed = 1,
+	demand = {300}
+})

mods/technic_plus_beta/technic/machines/LV/battery_box.lua

@@ -0,0 +1,19 @@
+-- LV Battery box
+
+minetest.register_craft({
+	output = 'technic:lv_battery_box0',
+	recipe = {
+		{'group:wood',      'group:wood',             'group:wood'},
+		{'technic:battery', 'technic:machine_casing', 'technic:battery'},
+		{'technic:battery', 'technic:lv_cable',       'technic:battery'},
+	}
+})
+
+technic.register_battery_box("technic:lv_battery_box", {
+	tier           = "LV",
+	max_charge     = 40000,
+	charge_rate    = 1000,
+	discharge_rate = 4000,
+	charge_step    = 500,
+	discharge_step = 800,
+})

mods/technic_plus_beta/technic/machines/LV/cables.lua

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+local S = technic.getter
+local mat = technic.materials
+
+minetest.register_alias("lv_cable", "technic:lv_cable")
+
+minetest.register_craft({
+	output = 'technic:lv_cable 6',
+	recipe = {
+		{mat.paper,        mat.paper,        mat.paper},
+		{mat.copper_ingot, mat.copper_ingot, mat.copper_ingot},
+		{mat.paper,        mat.paper,        mat.paper},
+	}
+})
+
+minetest.register_craft({
+	output = "technic:lv_cable_plate_1 5",
+	recipe = {
+		{""                , ""                , "technic:lv_cable"},
+		{"technic:lv_cable", "technic:lv_cable", "technic:lv_cable"},
+		{""                , ""                , "technic:lv_cable"},
+	}
+})
+
+minetest.register_craft({
+	output = "technic:lv_cable",
+	recipe = {{"technic:lv_cable_plate_1"}}
+})
+
+-- Register cables
+
+technic.register_cable("technic:lv_cable", {
+	tier = "LV",
+	size = 2/16,
+	description = S("@1 Cable", S("LV"))
+})
+technic.register_cable_plate("technic:lv_cable_plate", {
+	tier = "LV",
+	size = 2/16,
+	description = S("@1 Cable Plate", S("LV")),
+	tiles = {"technic_lv_cable.png"},
+})
+
+if minetest.get_modpath("digilines") then
+	technic.register_cable("technic:lv_digi_cable", {
+		tier = "LV",
+		size = 2/16,
+		description = S("@1 Digiline Cable", S("LV")),
+		digiline = { wire = { rules = technic.digilines.rules_allfaces } }
+	})
+	technic.register_cable_plate("technic:lv_digi_cable_plate", {
+		tier = "LV",
+		size = 2/16,
+		description = S("@1 Digiline Cable Plate", S("LV")),
+		digiline = { wire = { rules = technic.digilines.rules_allfaces } },
+		tiles = {"technic_lv_digi_cable.png"}
+	})
+end

mods/technic_plus_beta/technic/machines/LV/compressor.lua

@@ -0,0 +1,26 @@
+
+local S = technic.getter
+local mat = technic.materials
+
+minetest.register_alias("compressor", "technic:lv_compressor")
+
+minetest.register_craft({
+	output = 'technic:lv_compressor',
+	recipe = {
+		{mat.stone,            'basic_materials:motor',          mat.stone},
+		{'mesecons:piston',          'technic:machine_casing', 'mesecons:piston'},
+		{'basic_materials:silver_wire', 'technic:lv_cable',       'basic_materials:silver_wire'},
+	},
+	replacements = {
+		{"basic_materials:silver_wire", "basic_materials:empty_spool"},
+		{"basic_materials:silver_wire", "basic_materials:empty_spool"}
+	},
+})
+
+technic.register_base_machine("technic:lv_compressor", {
+	typename = "compressing",
+	description = S("@1 Compressor", S("LV")),
+	tier = "LV",
+	demand = {300},
+	speed = 1
+})

mods/technic_plus_beta/technic/machines/LV/electric_furnace.lua

@@ -0,0 +1,22 @@
+-- LV Electric Furnace
+-- This is a faster version of the stone furnace which runs on EUs
+local S = technic.getter
+local mat = technic.materials
+
+-- FIXME: kpoppel I'd like to introduce an induction heating element here also
+minetest.register_craft({
+	output = 'technic:lv_electric_furnace',
+	recipe = {
+		{mat.cobble, mat.cobble,         mat.cobble},
+		{mat.cobble, 'technic:machine_casing', mat.cobble},
+		{mat.cobble, 'technic:lv_cable',       mat.cobble},
+	}
+})
+
+technic.register_base_machine("technic:lv_electric_furnace", {
+	typename = "cooking",
+	description = S("@1 Furnace", S("LV")),
+	tier="LV",
+	demand={300},
+	speed = 2
+})

mods/technic_plus_beta/technic/machines/LV/extractor.lua

@@ -0,0 +1,35 @@
+local S = technic.getter
+
+minetest.register_alias("extractor", "technic:lv_extractor")
+
+if technic.config:get_bool("enable_tree_tap") then
+
+	minetest.register_craft({
+		output = 'technic:lv_extractor',
+		recipe = {
+			{'technic:treetap', 'basic_materials:motor',          'technic:treetap'},
+			{'technic:treetap', 'technic:machine_casing', 'technic:treetap'},
+			{'',                'technic:lv_cable',       ''},
+		}
+	})
+
+else
+
+	minetest.register_craft({
+		output = 'technic:lv_extractor',
+		recipe = {
+			{'basic_materials:motor', 'pipeworks:tube_1', 'basic_materials:motor'},
+			{'technic:carbon_steel_ingot', 'technic:machine_casing', 'technic:carbon_steel_ingot'},
+			{'', 'technic:lv_cable', ''},
+		}
+	})
+
+end
+
+technic.register_base_machine("technic:lv_extractor", {
+	typename = "extracting",
+	description = S("@1 Extractor", S("LV")),
+	tier = "LV",
+	demand = {300},
+	speed = 1
+})

mods/technic_plus_beta/technic/machines/LV/generator.lua

@@ -0,0 +1,20 @@
+-- The electric generator.
+-- A simple device to get started on the electric machines.
+-- Inefficient and expensive in fuel (200EU per tick)
+-- Also only allows for LV machinery to run.
+
+local mat = technic.materials
+
+minetest.register_alias("lv_generator", "technic:lv_generator")
+
+minetest.register_craft({
+	output = 'technic:lv_generator',
+	recipe = {
+		{mat.stone, mat.furnace,        mat.stone},
+		{mat.stone, 'technic:machine_casing', mat.stone},
+		{mat.stone, 'technic:lv_cable',       mat.stone},
+	}
+})
+
+technic.register_generator({tier="LV", supply=200})
+

mods/technic_plus_beta/technic/machines/LV/geothermal.lua

@@ -0,0 +1,124 @@
+-- A geothermal EU generator
+-- Using hot lava and water this device can create energy from steam
+-- The machine is only producing LV EUs and can thus not drive more advanced equipment
+-- The output is a little more than the coal burning generator (max 300EUs)
+
+minetest.register_alias("geothermal", "technic:geothermal")
+
+local S = technic.getter
+local mat = technic.materials
+
+minetest.register_craft({
+	output = 'technic:geothermal',
+	recipe = {
+		{'technic:granite',          mat.diamond,        'technic:granite'},
+		{'basic_materials:copper_wire', 'technic:machine_casing', 'basic_materials:copper_wire'},
+		{'technic:granite',          'technic:lv_cable',       'technic:granite'},
+	},
+	replacements = {
+		{"basic_materials:copper_wire", "basic_materials:empty_spool"},
+		{"basic_materials:copper_wire", "basic_materials:empty_spool"}
+	},
+})
+
+minetest.register_craftitem("technic:geothermal", {
+	description = S("Geothermal @1 Generator", S("LV")),
+})
+
+local check_node_around = function(pos)
+	local node = minetest.get_node(pos)
+	if node.name == mat.water_source or node.name == mat.water_flowing then return 1 end
+	if node.name == mat.lava_source or node.name == mat.lava_flowing then return 2 end
+	return 0
+end
+
+local run = function(pos, node)
+	local meta             = minetest.get_meta(pos)
+	local water_nodes      = 0
+	local lava_nodes       = 0
+	local production_level = 0
+	local eu_supply        = 0
+
+	-- Correct positioning is water on one side and lava on the other.
+	-- The two cannot be adjacent because the lava the turns into obsidian or rock.
+	-- To get to 100% production stack the water and lava one extra block down as well:
+	--    WGL (W=Water, L=Lava, G=the generator, |=an LV cable)
+	--    W|L
+
+	local positions = {
+		{x=pos.x+1, y=pos.y,   z=pos.z},
+		{x=pos.x+1, y=pos.y-1, z=pos.z},
+		{x=pos.x-1, y=pos.y,   z=pos.z},
+		{x=pos.x-1, y=pos.y-1, z=pos.z},
+		{x=pos.x,   y=pos.y,   z=pos.z+1},
+		{x=pos.x,   y=pos.y-1, z=pos.z+1},
+		{x=pos.x,   y=pos.y,   z=pos.z-1},
+		{x=pos.x,   y=pos.y-1, z=pos.z-1},
+	}
+	for _, p in pairs(positions) do
+		local check = check_node_around(p)
+		if check == 1 then water_nodes = water_nodes + 1 end
+		if check == 2 then lava_nodes  = lava_nodes  + 1 end
+	end
+
+	if water_nodes == 1 and lava_nodes == 1 then production_level =  25; eu_supply = 50 end
+	if water_nodes == 2 and lava_nodes == 1 then production_level =  50; eu_supply = 100 end
+	if water_nodes == 1 and lava_nodes == 2 then production_level =  75; eu_supply = 200 end
+	if water_nodes == 2 and lava_nodes == 2 then production_level = 100; eu_supply = 300 end
+
+	if production_level > 0 then
+		meta:set_int("LV_EU_supply", eu_supply)
+	end
+
+	meta:set_string("infotext", S("@1 (@2% Efficiency)",
+		S("Geothermal @1 Generator", S("LV")), production_level))
+
+	if production_level > 0 and minetest.get_node(pos).name == "technic:geothermal" then
+		technic.swap_node (pos, "technic:geothermal_active")
+		return
+	end
+	if production_level == 0 then
+		technic.swap_node(pos, "technic:geothermal")
+		meta:set_int("LV_EU_supply", 0)
+	end
+end
+
+minetest.register_node("technic:geothermal", {
+	description = S("Geothermal @1 Generator", S("LV")),
+	tiles = {"technic_geothermal_top.png", "technic_machine_bottom.png", "technic_geothermal_side.png",
+	         "technic_geothermal_side.png", "technic_geothermal_side.png", "technic_geothermal_side.png"},
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
+		technic_machine=1, technic_lv=1, axey=2, handy=1},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	paramtype2 = "facedir",
+	legacy_facedir_simple = true,
+	sounds = technic.sounds.node_sound_wood_defaults(),
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", S("Geothermal @1 Generator", S("LV")))
+		meta:set_int("LV_EU_supply", 0)
+	end,
+	technic_run = run,
+})
+
+minetest.register_node("technic:geothermal_active", {
+	description = S("Geothermal @1 Generator", S("LV")),
+	tiles = {"technic_geothermal_top_active.png", "technic_machine_bottom.png", "technic_geothermal_side.png",
+	         "technic_geothermal_side.png", "technic_geothermal_side.png", "technic_geothermal_side.png"},
+	paramtype2 = "facedir",
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
+		technic_machine=1, technic_lv=1, not_in_creative_inventory=1, axey=2, handy=1},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	legacy_facedir_simple = true,
+	sounds = technic.sounds.node_sound_wood_defaults(),
+	drop = "technic:geothermal",
+	technic_run = run,
+})
+
+technic.register_machine("LV", "technic:geothermal",        technic.producer)
+technic.register_machine("LV", "technic:geothermal_active", technic.producer)
+

mods/technic_plus_beta/technic/machines/LV/grinder.lua

@@ -0,0 +1,20 @@
+local S = technic.getter
+local mat = technic.materials
+
+minetest.register_alias("grinder", "technic:lv_grinder")
+minetest.register_craft({
+	output = 'technic:lv_grinder',
+	recipe = {
+		{mat.desert_stone, mat.diamond, mat.desert_stone},
+		{mat.desert_stone, 'technic:machine_casing', mat.desert_stone},
+		{'technic:granite', 'technic:lv_cable', 'technic:granite'},
+	}
+})
+
+technic.register_base_machine("technic:lv_grinder", {
+	typename = "grinding",
+	description = S("@1 Grinder", S("LV")),
+	tier="LV",
+	demand={200},
+	speed=1
+})

mods/technic_plus_beta/technic/machines/LV/init.lua

@@ -0,0 +1,27 @@
+
+technic.register_tier("LV", "Low Voltage")
+
+local path = technic.modpath.."/machines/LV"
+
+-- Wiring stuff
+dofile(path.."/cables.lua")
+dofile(path.."/battery_box.lua")
+
+-- Generators
+dofile(path.."/solar_panel.lua")
+dofile(path.."/solar_array.lua")
+dofile(path.."/geothermal.lua")
+dofile(path.."/water_mill.lua")
+dofile(path.."/generator.lua")
+
+-- Machines
+dofile(path.."/alloy_furnace.lua")
+dofile(path.."/electric_furnace.lua")
+dofile(path.."/grinder.lua")
+dofile(path.."/extractor.lua")
+dofile(path.."/compressor.lua")
+
+dofile(path.."/music_player.lua")
+
+dofile(path.."/led.lua")
+dofile(path.."/lamp.lua")

mods/technic_plus_beta/technic/machines/LV/lamp.lua

@@ -0,0 +1,204 @@
+
+-- LV Lamp - a powerful light source.
+-- Illuminates a 7x7x3(H) volume below itself with light bright as the sun.
+
+local S = technic.getter
+local mat = technic.materials
+
+local demand = 50
+local desc = S("@1 Lamp", S("LV"))
+local active_desc = S("@1 Active", desc).."\n"..S("Demand: @1", technic.EU_string(demand))
+local unpowered_desc = S("@1 Unpowered", desc)
+local off_desc = S("@1 Off", desc)
+
+-- Invisible light source node used for illumination
+minetest.register_node("technic:dummy_light_source", {
+	description = S("Dummy light source node"),
+	inventory_image = "technic_dummy_light_source.png",
+	wield_image = "technic_dummy_light_source.png",
+	paramtype = "light",
+	drawtype = "airlike",
+	light_source = 14,
+	sunlight_propagates = true,
+	walkable = false,
+	buildable_to = true,
+	diggable = false,
+	pointable = false,
+	--drop = "",  -- Intentionally allowed to drop itself
+	groups = {not_in_creative_inventory = 1}
+})
+
+local cid_light = minetest.get_content_id("technic:dummy_light_source")
+local cid_air = minetest.CONTENT_AIR
+
+local function illuminate(pos, active)
+	local pos1 = {x = pos.x - 3, y = pos.y - 3, z = pos.z - 3}
+	local pos2 = {x = pos.x + 3, y = pos.y - 1, z = pos.z + 3}
+
+	local vm = minetest.get_voxel_manip()
+	local emin, emax = vm:read_from_map(pos1, pos2)
+	local va = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
+	local node_data = vm:get_data()
+
+	local find_node = active and cid_air or cid_light
+	local set_node = active and cid_light or cid_air
+
+	local dirty = false
+	for i in va:iterp(pos1, pos2) do
+		if node_data[i] == find_node then
+			node_data[i] = set_node
+			dirty = true
+		end
+	end
+	if dirty then
+		vm:set_data(node_data)
+		vm:write_to_map()
+	end
+end
+
+local function set_random_timer(pos, mint, maxt)
+	local t = math.random(mint * 10, maxt * 10) * 0.1
+	minetest.get_node_timer(pos):start(t)
+end
+
+local function lamp_run(pos, node)
+	local meta = minetest.get_meta(pos)
+
+	if meta:get_int("LV_EU_demand") == 0 then
+		return  -- Lamp is turned off
+	end
+
+	local eu_input = meta:get_int("LV_EU_input")
+
+	if node.name == "technic:lv_lamp_active" then
+		if eu_input < demand then
+			technic.swap_node(pos, "technic:lv_lamp")
+			meta:set_string("infotext", unpowered_desc)
+			set_random_timer(pos, 0.2, 1)
+		end
+	elseif node.name == "technic:lv_lamp" then
+		if eu_input >= demand then
+			technic.swap_node(pos, "technic:lv_lamp_active")
+			meta:set_string("infotext", active_desc)
+			set_random_timer(pos, 0.2, 2)
+		end
+	end
+end
+
+local function lamp_toggle(pos, node, player)
+	if not player or minetest.is_protected(pos, player:get_player_name()) then
+		return
+	end
+	local meta = minetest.get_meta(pos)
+	if meta:get_int("LV_EU_demand") == 0 then
+		meta:set_string("infotext", active_desc)
+		meta:set_int("LV_EU_demand", demand)
+	else
+		technic.swap_node(pos, "technic:lv_lamp")
+		meta:set_string("infotext", off_desc)
+		meta:set_int("LV_EU_demand", 0)
+		set_random_timer(pos, 0.2, 1)
+	end
+end
+
+minetest.register_node("technic:lv_lamp", {
+	description = desc,
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {0.5,0.5,0.5,-0.5,-0.2,-0.5}
+	},
+	collision_box = {
+		type = "fixed",
+		fixed = {0.5,0.5,0.5,-0.5,-0.2,-0.5}
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {0.5,0.5,0.5,-0.5,-0.2,-0.5}
+	},
+	tiles = {
+		"technic_lv_lamp_top.png",
+		"technic_lv_lamp_bottom.png",
+		"technic_lv_lamp_side.png",
+		"technic_lv_lamp_side.png",
+		"technic_lv_lamp_side.png",
+		"technic_lv_lamp_side.png"
+	},
+	groups = {cracky = 2, technic_machine = 1, technic_lv = 1, pickaxey = 2},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	connect_sides = {"front", "back", "left", "right", "top"},
+	can_dig = technic.machine_can_dig,
+	technic_run = lamp_run,
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", desc)
+		meta:set_int("LV_EU_demand", demand)
+	end,
+	on_destruct = illuminate,
+	on_rightclick = lamp_toggle,
+	on_timer = function(pos)
+		illuminate(pos, false)
+		-- Don't start the timer again, otherwise lights will fight each other
+	end,
+})
+
+minetest.register_node("technic:lv_lamp_active", {
+	description = active_desc,
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {0.5, 0.5, 0.5, -0.5, -0.2, -0.5}
+	},
+	collision_box = {
+		type = "fixed",
+		fixed = {0.5, 0.5, 0.5, -0.5, -0.2, -0.5}
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {0.5, 0.5, 0.5, -0.5, -0.2, -0.5}
+	},
+	tiles = {
+		"technic_lv_lamp_top.png",
+		"technic_lv_lamp_bottom.png",
+		"technic_lv_lamp_side.png",
+		"technic_lv_lamp_side.png",
+		"technic_lv_lamp_side.png",
+		"technic_lv_lamp_side.png"
+	},
+	paramtype = "light",
+	light_source = 14,
+	drop = "technic:lv_lamp",
+	groups = {cracky = 2, technic_machine = 1, technic_lv = 1, not_in_creative_inventory = 1, pickaxey = 2},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	connect_sides = {"front", "back", "left", "right", "top"},
+	can_dig = technic.machine_can_dig,
+	technic_run = lamp_run,
+	technic_on_disable = function(pos)
+		technic.swap_node(pos, "technic:lv_lamp")
+		set_random_timer(pos, 0.2, 1)
+	end,
+	on_destruct = illuminate,
+	on_rightclick = lamp_toggle,
+	on_timer = function(pos, elapsed)
+		if elapsed < 60 then  -- Don't check immediately after being unloaded
+			illuminate(pos, true)
+		end
+		set_random_timer(pos, 30, 60)  -- Check every 30-60 seconds
+	end,
+})
+
+technic.register_machine("LV", "technic:lv_lamp", technic.receiver)
+technic.register_machine("LV", "technic:lv_lamp_active", technic.receiver)
+
+minetest.register_craft({
+	output = "technic:lv_lamp",
+	recipe = {
+		{mat.glass, mat.glass, mat.glass},
+		{"technic:lv_led", "technic:lv_led", "technic:lv_led"},
+		{"mesecons_materials:glue", "technic:lv_cable", "mesecons_materials:glue"},
+	}
+})

mods/technic_plus_beta/technic/machines/LV/led.lua

@@ -0,0 +1,102 @@
+
+-- LED - a weak light source.
+-- Intended primarily as a core component for LED lamps.
+
+local S = technic.getter
+
+local demand = 5
+local desc = S("@1 LED", S("LV"))
+local active_desc = S("@1 Active", desc).."\n"..S("Demand: @1", technic.EU_string(demand))
+local unpowered_desc = S("@1 Unpowered", desc)
+
+
+local function led_run(pos, node)
+	local meta = minetest.get_meta(pos)
+	local eu_input = meta:get_int("LV_EU_input")
+
+	if eu_input < demand and node.name == "technic:lv_led_active" then
+		technic.swap_node(pos, "technic:lv_led")
+		meta:set_string("infotext", unpowered_desc)
+	elseif eu_input >= demand and node.name == "technic:lv_led" then
+		technic.swap_node(pos, "technic:lv_led_active")
+		meta:set_string("infotext", active_desc)
+	end
+end
+
+minetest.register_node("technic:lv_led", {
+	description = desc,
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {0.2, 0.2, 0.2, -0.2, -0.2, -0.2}
+	},
+	collision_box = {
+		type = "fixed",
+		fixed = {0.2, 0.2, 0.2, -0.2, -0.2, -0.2}
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {0.2, 0.2, 0.2, -0.2, -0.2, -0.2}
+	},
+	tiles = {"technic_lv_led.png"},
+	inventory_image = "technic_lv_led_inv.png",
+	sunlight_propagates = true,
+	groups = {cracky = 2, technic_machine = 1, technic_lv = 1, pickaxey = 2},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	connect_sides = {"front", "back", "left", "right", "top", "bottom"},
+	can_dig = technic.machine_can_dig,
+	technic_run = led_run,
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", desc)
+		meta:set_int("LV_EU_demand", demand)
+	end,
+})
+
+minetest.register_node("technic:lv_led_active", {
+	description = active_desc,
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {0.2, 0.2, 0.2, -0.2, -0.2, -0.2}
+	},
+	collision_box = {
+		type = "fixed",
+		fixed = {0.2, 0.2, 0.2, -0.2, -0.2, -0.2}
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {0.2, 0.2, 0.2, -0.2, -0.2, -0.2}
+	},
+	tiles = {"technic_lv_led.png"},
+	inventory_image = "technic_lv_led_inv.png",
+	paramtype = "light",
+	light_source = 9,
+	drop = "technic:lv_led",
+	sunlight_propagates = true,
+	groups = {cracky = 2, technic_machine = 1, technic_lv = 1, not_in_creative_inventory = 1, pickaxey = 2},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	connect_sides = {"front", "back", "left", "right", "top", "bottom"},
+	can_dig = technic.machine_can_dig,
+	technic_run = led_run,
+	technic_on_disable = function(pos)
+		technic.swap_node(pos, "technic:lv_led")
+	end,
+})
+
+technic.register_machine("LV", "technic:lv_led", technic.receiver)
+technic.register_machine("LV", "technic:lv_led_active", technic.receiver)
+
+minetest.register_craft({
+	output = "technic:lv_led 2",
+	recipe = {
+		{"", "basic_materials:plastic_sheet", ""},
+		{"basic_materials:plastic_sheet", "technic:doped_silicon_wafer", "basic_materials:plastic_sheet"},
+		{"", "basic_materials:silver_wire", ""},
+	},
+	replacements = {{"basic_materials:silver_wire", "basic_materials:empty_spool"}},
+})

mods/technic_plus_beta/technic/machines/LV/music_player.lua

@@ -0,0 +1,134 @@
+-- LV Music player.
+-- The player can play music. But it is high ampage!
+
+local S = technic.getter
+local mat = technic.materials
+
+minetest.register_alias("music_player", "technic:music_player")
+minetest.register_craft({
+	output = 'technic:music_player',
+	recipe = {
+		{'technic:chromium_ingot', mat.diamond, 'technic:chromium_ingot'},
+		{mat.diamond,        'technic:machine_casing', mat.diamond},
+		{mat.mossycobble,    'technic:lv_cable',       mat.mossycobble},
+	}
+})
+
+local music_handles = {}
+
+local function play_track(pos, track)
+	return minetest.sound_play("technic_track"..tostring(track),
+			{pos = pos, gain = 1.0, loop = true, max_hear_distance = 72,})
+end
+
+local run = function(pos, node)
+	local meta         = minetest.get_meta(pos)
+	local eu_input     = meta:get_int("LV_EU_input")
+	local machine_name = S("@1 Music Player", S("LV"))
+	local demand       = 150
+
+	local current_track = meta:get_int("current_track")
+	local pos_hash      = minetest.hash_node_position(pos)
+	local music_handle  = music_handles[pos_hash]
+
+	-- Setup meta data if it does not exist.
+	if not eu_input then
+		meta:set_int("LV_EU_demand", demand)
+		meta:set_int("LV_EU_input", 0)
+		return
+	end
+
+	if meta:get_int("active") == 0 then
+		meta:set_string("infotext", S("@1 Idle", machine_name))
+		meta:set_int("LV_EU_demand", 0)
+		return
+	end
+
+	if eu_input < demand then
+		meta:set_string("infotext", S("@1 Unpowered", machine_name))
+		if music_handle then
+			minetest.sound_stop(music_handle)
+			music_handle = nil
+		end
+	elseif eu_input >= demand then
+		meta:set_string("infotext", S("@1 Active", machine_name) .. "\n" ..
+			S("Demand: @1", technic.EU_string(demand)))
+		if not music_handle then
+			music_handle = play_track(pos, current_track)
+		end
+	end
+	music_handles[pos_hash] = music_handle
+	meta:set_int("LV_EU_demand", demand)
+end
+
+local function stop_player(pos, node)
+	local pos_hash = minetest.hash_node_position(pos)
+	local music_handle = music_handles[pos_hash]
+	if music_handle then
+		minetest.sound_stop(music_handle)
+		music_handles[pos_hash] = nil
+	end
+end
+
+local function set_display(meta)
+	meta:set_string("formspec",
+			"size[4,4.5]"..
+			"item_image[0,0;1,1;technic:music_player]"..
+			"label[1,0;"..S("@1 Music Player", S("LV")).."]"..
+			"button[0,1;1,1;track1;1]"..
+			"button[1,1;1,1;track2;2]"..
+			"button[2,1;1,1;track3;3]"..
+			"button[0,2;1,1;track4;4]"..
+			"button[1,2;1,1;track5;5]"..
+			"button[2,2;1,1;track6;6]"..
+			"button[0,3;1,1;track7;7]"..
+			"button[1,3;1,1;track8;8]"..
+			"button[2,3;1,1;track9;9]"..
+			"button[3,1;1,1;stop;"..S("Stop").."]"..
+			"label[0,4;"..(meta:get_int("active") == 0 and S("Stopped") or
+					S("Current track: @1", meta:get_int("current_track"))).."]")
+end
+
+minetest.register_node("technic:music_player", {
+	description = S("@1 Music Player", S("LV")),
+	tiles = {"technic_music_player_top.png", "technic_machine_bottom.png", "technic_music_player_side.png",
+	         "technic_music_player_side.png", "technic_music_player_side.png", "technic_music_player_side.png"},
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
+		technic_machine=1, technic_lv=1, axey = 2, handy=1},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	connect_sides = {"bottom"},
+	sounds = technic.sounds.node_sound_wood_defaults(),
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", S("@1 Music Player", S("LV")))
+		set_display(meta)
+	end,
+	on_receive_fields = function(pos, formanme, fields, sender)
+		local new_track = nil
+		if fields.stop then new_track = 0 end
+		if fields.track1 then new_track = 1 end
+		if fields.track2 then new_track = 2 end
+		if fields.track3 then new_track = 3 end
+		if fields.track4 then new_track = 4 end
+		if fields.track5 then new_track = 5 end
+		if fields.track6 then new_track = 6 end
+		if fields.track7 then new_track = 7 end
+		if fields.track8 then new_track = 8 end
+		if fields.track9 then new_track = 9 end
+		if new_track then
+			stop_player(pos)
+			local meta = minetest.get_meta(pos)
+			meta:set_int("active", new_track == 0 and 0 or 1)
+			meta:set_int("current_track", new_track)
+			set_display(meta)
+		end
+	end,
+	on_destruct = stop_player,
+	technic_run = run,
+	technic_on_disable = stop_player,
+})
+
+technic.register_machine("LV", "technic:music_player", technic.receiver)
+

mods/technic_plus_beta/technic/machines/LV/solar_array.lua

@@ -0,0 +1,22 @@
+-- The solar array is an assembly of panels into a powerful array
+-- The assembly can deliver more energy than the individual panel because
+-- of the transformer unit which converts the panel output variations into
+-- a stable supply.
+-- Solar arrays are not able to store large amounts of energy.
+-- The LV arrays are used to make medium voltage arrays.
+
+minetest.register_craft({
+	output = 'technic:lv_solar_array 1',
+	recipe = {
+		{'technic:solar_panel',        'technic:solar_panel',    'technic:solar_panel'},
+		{'technic:carbon_steel_ingot', 'technic:lv_transformer', 'technic:carbon_steel_ingot'},
+		{'',                           'technic:lv_cable',       ''},
+	}
+})
+
+technic.register_solar_array("technic:lv_solar_array", {
+	tier="LV",
+	power=10
+})
+
+minetest.register_alias("technic:solar_array_lv", "technic:lv_solar_array")

mods/technic_plus_beta/technic/machines/LV/solar_panel.lua

@@ -0,0 +1,74 @@
+-- Solar panels are the building blocks of LV solar arrays
+-- They can however also be used separately but with reduced efficiency due to the missing transformer.
+-- Individual panels are less efficient than when the panels are combined into full arrays.
+
+local S = technic.getter
+
+
+minetest.register_craft({
+	output = 'technic:solar_panel',
+	recipe = {
+		{'technic:doped_silicon_wafer', 'technic:doped_silicon_wafer', 'technic:doped_silicon_wafer'},
+		{'basic_materials:silver_wire',    'technic:lv_cable',            'mesecons_materials:glue'},
+	},
+	replacements = { {"basic_materials:silver_wire", "basic_materials:empty_spool"}, },
+})
+
+
+local run = function(pos, node)
+	-- The action here is to make the solar panel prodice power
+	-- Power is dependent on the light level and the height above ground
+	-- There are many ways to cheat by using other light sources like lamps.
+	-- As there is no way to determine if light is sunlight that is just a shame.
+	-- To take care of some of it solar panels do not work outside daylight hours or if
+	-- built below 0m
+	local pos1 = {x=pos.x, y=pos.y+1, z=pos.z}
+	local machine_name = S("Small Solar @1 Generator", S("LV"))
+
+	local light = minetest.get_node_light(pos1, nil)
+	local time_of_day = minetest.get_timeofday()
+	local meta = minetest.get_meta(pos)
+	if light == nil then light = 0 end
+	-- turn on panel only during day time and if sufficient light
+        -- I know this is counter intuitive when cheating by using other light sources underground.
+	if light >= 12 and time_of_day >= 0.24 and time_of_day <= 0.76 and pos.y > -10 then
+		local charge_to_give = math.floor((light + pos1.y) * 3)
+		charge_to_give = math.max(charge_to_give, 0)
+		charge_to_give = math.min(charge_to_give, 200)
+		meta:set_string("infotext", S("@1 Active (@2)", machine_name,
+			technic.EU_string(charge_to_give)))
+		meta:set_int("LV_EU_supply", charge_to_give)
+	else
+		meta:set_string("infotext", S("@1 Idle", machine_name))
+		meta:set_int("LV_EU_supply", 0)
+	end
+end
+
+minetest.register_node("technic:solar_panel", {
+	tiles = {"technic_solar_panel_top.png",  "technic_solar_panel_bottom.png", "technic_solar_panel_side.png",
+	         "technic_solar_panel_side.png", "technic_solar_panel_side.png",   "technic_solar_panel_side.png"},
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
+		technic_machine=1, technic_lv=1, axey=2, handy=1},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	connect_sides = {"bottom"},
+	sounds = technic.sounds.node_sound_wood_defaults(),
+	description = S("Small Solar @1 Generator", S("LV")),
+	active = false,
+	drawtype = "nodebox",
+	paramtype = "light",
+	node_box = {
+		type = "fixed",
+		fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
+	},
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_int("LV_EU_supply", 0)
+		meta:set_string("infotext", S("Small Solar @1 Generator", S("LV")))
+	end,
+	technic_run = run,
+})
+
+technic.register_machine("LV", "technic:solar_panel", technic.producer)
+

mods/technic_plus_beta/technic/machines/LV/water_mill.lua

@@ -0,0 +1,115 @@
+-- A water mill produces LV EUs by exploiting flowing water across it
+-- It is a LV EU supplier and fairly low yield (max 180EUs)
+-- It is a little over half as good as the thermal generator.
+
+local S = technic.getter
+local mat = technic.materials
+
+local cable_entry = "^technic_cable_connection_overlay.png"
+
+minetest.register_alias("water_mill", "technic:water_mill")
+
+minetest.register_craft({
+	output = 'technic:water_mill',
+	recipe = {
+		{'technic:marble', mat.diamond,        'technic:marble'},
+		{'group:wood',     'technic:machine_casing', 'group:wood'},
+		{'technic:marble', 'technic:lv_cable',       'technic:marble'},
+	}
+})
+
+local function check_node_around_mill(pos)
+	local node = minetest.get_node(pos)
+	if node.name == mat.water_flowing or node.name == mat.river_water_flowing then
+		return node.param2 -- returns approx. water flow, if any
+	end
+	return false
+end
+
+local run = function(pos, node)
+	local meta             = minetest.get_meta(pos)
+	local water_flow       = 0
+	local production_level
+	local eu_supply
+	local max_output       = 4 * 45 -- keeping it around 180, little more than previous 150 :)
+
+	local positions = {
+		{x=pos.x+1, y=pos.y, z=pos.z},
+		{x=pos.x-1, y=pos.y, z=pos.z},
+		{x=pos.x,   y=pos.y, z=pos.z+1},
+		{x=pos.x,   y=pos.y, z=pos.z-1},
+	}
+
+	for _, p in pairs(positions) do
+		local check = check_node_around_mill(p)
+		if check then
+			water_flow = water_flow + check
+		end
+	end
+
+	eu_supply = math.min(4 * water_flow, max_output)
+	production_level = math.floor(100 * eu_supply / max_output)
+
+	meta:set_int("LV_EU_supply", eu_supply)
+
+	meta:set_string("infotext", S("@1 (@2% Efficiency)",
+		S("Hydro @1 Generator", S("LV")), production_level))
+
+	if production_level > 0 and
+	   minetest.get_node(pos).name == "technic:water_mill" then
+		technic.swap_node (pos, "technic:water_mill_active")
+		meta:set_int("LV_EU_supply", 0)
+		return
+	end
+	if production_level == 0 then
+		technic.swap_node(pos, "technic:water_mill")
+	end
+end
+
+minetest.register_node("technic:water_mill", {
+	description = S("Hydro @1 Generator", S("LV")),
+	tiles = {
+		"technic_water_mill_top.png",
+		"technic_machine_bottom.png"..cable_entry,
+		"technic_water_mill_side.png",
+		"technic_water_mill_side.png",
+		"technic_water_mill_side.png",
+		"technic_water_mill_side.png"
+	},
+	paramtype2 = "facedir",
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
+		  technic_machine=1, technic_lv=1, axey=2, handy=1},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	legacy_facedir_simple = true,
+	sounds = technic.sounds.node_sound_wood_defaults(),
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", S("Hydro @1 Generator", S("LV")))
+		meta:set_int("LV_EU_supply", 0)
+	end,
+	technic_run = run,
+})
+
+minetest.register_node("technic:water_mill_active", {
+	description = S("Hydro @1 Generator", S("LV")),
+	tiles = {"technic_water_mill_top_active.png", "technic_machine_bottom.png",
+	         "technic_water_mill_side.png",       "technic_water_mill_side.png",
+	         "technic_water_mill_side.png",       "technic_water_mill_side.png"},
+	paramtype2 = "facedir",
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
+		technic_machine=1, technic_lv=1, not_in_creative_inventory=1, axey=2, handy=1},
+	is_ground_content = false,
+	_mcl_blast_resistance = 1,
+	_mcl_hardness = 0.8,
+	legacy_facedir_simple = true,
+	sounds = technic.sounds.node_sound_wood_defaults(),
+	drop = "technic:water_mill",
+	technic_run = run,
+	technic_disabled_machine_name = "technic:water_mill",
+})
+
+technic.register_machine("LV", "technic:water_mill",        technic.producer)
+technic.register_machine("LV", "technic:water_mill_active", technic.producer)
+