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

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

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+-- 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)
+