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

mods/technic_plus_beta/technic/machines/MV/hydro_turbine.lua

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+-- A Hydro Turbine produces MV EUs by exploiting flowing water across it
+-- It is a MV EU supplier and fairly high yield (max 1800EUs)
+
+local S = technic.getter
+
+local cable_entry = "^technic_cable_connection_overlay.png"
+
+minetest.register_alias("hydro_turbine", "technic:hydro_turbine")
+
+minetest.register_craft({
+	output = 'technic:hydro_turbine',
+	recipe = {
+		{'technic:stainless_steel_ingot', 'technic:water_mill', 'technic:stainless_steel_ingot'},
+		{'technic:water_mill', 'technic:mv_transformer', 'technic:water_mill'},
+		{'technic:stainless_steel_ingot', 'technic:mv_cable', 'technic:stainless_steel_ingot'},
+	}
+})
+
+local function get_water_flow(pos)
+	local node = minetest.get_node(pos)
+	if minetest.get_item_group(node.name, "water") == 3 then
+		return node.param2 -- returns approx. water flow, if any
+	end
+	return 0
+end
+
+---
+-- 10 times better than LV hydro because of 2 extra water mills and 4 stainless steel, a transformer and whatnot ;P.
+-- Man hydro turbines are tough and long lasting. So, give it some value :)
+local run = function(pos, node)
+	local meta             = minetest.get_meta(pos)
+	local water_flow       = 0
+	local production_level
+	local eu_supply
+	local max_output       = 40 * 45 -- Generates 1800EU/s
+
+	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
+		water_flow = water_flow + get_water_flow(p)
+	end
+
+	eu_supply = math.min(40 * water_flow, max_output)
+	production_level = math.floor(100 * eu_supply / max_output)
+
+	meta:set_int("MV_EU_supply", eu_supply)
+
+	meta:set_string("infotext", S("@1 (@2% Efficiency)",
+		S("Hydro @1 Generator", S("MV")), production_level))
+	if production_level > 0 and
+		minetest.get_node(pos).name == "technic:hydro_turbine" then
+		technic.swap_node(pos, "technic:hydro_turbine_active")
+		meta:set_int("MV_EU_supply", 0)
+		return
+	end
+	if production_level == 0 then
+		technic.swap_node(pos, "technic:hydro_turbine")
+	end
+end
+
+minetest.register_node("technic:hydro_turbine", {
+	description = S("Hydro @1 Generator", S("MV")),
+	tiles = {
+		"technic_hydro_turbine_top.png",
+		"technic_machine_bottom.png"..cable_entry,
+		"technic_hydro_turbine_side.png",
+		"technic_hydro_turbine_side.png",
+		"technic_hydro_turbine_side.png",
+		"technic_hydro_turbine_side.png"
+	},
+	paramtype2 = "facedir",
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
+		technic_machine=1, technic_mv=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("MV")))
+		meta:set_int("MV_EU_supply", 0)
+	end,
+	technic_run = run,
+})
+
+minetest.register_node("technic:hydro_turbine_active", {
+	description = S("Hydro @1 Generator", S("MV")),
+	tiles = {"technic_hydro_turbine_top_active.png", "technic_machine_bottom.png",
+			"technic_hydro_turbine_side.png", "technic_hydro_turbine_side.png",
+			"technic_hydro_turbine_side.png", "technic_hydro_turbine_side.png"},
+	paramtype2 = "facedir",
+	groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2, axey=2, handy=1,
+		technic_machine=1, technic_mv=1, not_in_creative_inventory=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:hydro_turbine",
+	technic_run = run,
+	technic_disabled_machine_name = "technic:hydro_turbine",
+})
+
+technic.register_machine("MV", "technic:hydro_turbine",        technic.producer)
+technic.register_machine("MV", "technic:hydro_turbine_active", technic.producer)