minetest_forge/electrode.lua

if minetest.get_modpath("technic") ~= nil then

	local minetest, pairs, min = minetest, pairs, math.min

	local modname = minetest.get_current_modname()
	local forge, melt_energy_requirement, meltable_ores, random_melt_product = ...

	local electrode_min_demand = 20

	local function electrode_run(pos, node)
		local meta = minetest.get_meta(pos)
		local input = meta:get_int("LV_EU_input")
		local heat = meta:get_int("stored_eu")
		local current_charge = meta:get_int("internal_EU_charge")

		if false and input < electrode_min_demand then
			meta:set_string("infotext", "Electrode Unpowered")
			return
		end

		heat = heat + input

		meta:set_string("infotext", "Electrode Active")

		local ore_nodes = minetest.find_nodes_in_area(
			{x=pos.x - 3, y=pos.y - 6,z=pos.z - 3},
			{x=pos.x + 3, y=pos.y, z=pos.z + 3},
			meltable_ores
		)

		for _,p in pairs(ore_nodes) do
			local n = minetest.get_node(p)
			local req = melt_energy_requirement[n.name]

			if heat < req then
				break
			end

			heat = heat - req

			minetest.set_node(p, {name=random_melt_product(n.name)})
		end

		meta:set_int("stored_eu", min(forge.max_heat, heat))
	end

	minetest.register_node(modname..":electrode", {
		description = "Electrode",
		drawtype = "nodebox",
		tiles = {"default_steel_block.png^[colorize:blue:10"},
		paramtype = "light",
		paramtype2 = "facedir",
		is_ground_content = false,
		groups = {cracky=3, refractory=1, technic_machine=1, technic_lv=1 },
		node_box = {
			type = "fixed",
			fixed = {
				{-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
				{-.5, -2.5, -0.15, -.2, 0, 0.15},
				{.5, -2.5, -0.15, .2, 0, 0.15},
			},
		},
		on_punch = function (pos, node)
			minetest.set_node(pos, {name=modname..":electrode_on"})
		end,
		on_construct = function(pos)
			local meta = minetest.get_meta(pos)
			meta:set_int("enabled", 0)
			meta:set_int("active", 0)
			meta:set_string("power_flag", "LV")
			meta:get_int("stored_eu", 0)
			meta:set_int("LV_EU_demand", 0)
		end,
	})

	minetest.register_craft({
		output = modname..':electrode',
		recipe = {
			{"technic:lv_cable0", "default:steelblock", "technic:lv_cable0"},
			{"default:steel_ingot", "", "default:steel_ingot"},
			{"default:steel_ingot", "", "default:steel_ingot"},
		}
	})

	local function set_electrode_demand(meta)
		local machine_name = "Electrode"
		meta:set_int("LV_EU_demand", 10000000)
		-- meta:set_int("LV_EU_demand", electrode_demand)
		local input = meta:get_int("LV_EU_input")
		if input ~= nil then
			meta:set_string("infotext", (input > 0 and "%s Active" or "%s Unpowered"):format(machine_name))
		else
			meta:set_string("infotext", machine_name.. " has no network.")
		end
	end

	minetest.register_node(modname..":electrode_on", {
		description = "Electrode",
		drawtype = "nodebox",
		tiles = {"default_steel_block.png^default_torch.png^[colorize:blue:10"},
		paramtype = "light",
		paramtype2 = "facedir",
		is_ground_content = false,
		connect_sides = {"top"},
		groups = {
			cracky=3, refractory=1, technic_machine=1, technic_lv=1,
			not_in_creative_inventory = 1,
		},
		node_box = {
			type = "fixed",
			fixed = {
				{-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
				{-.5, -2.5, -0.15, -.2, 0, 0.15},
				{.5, -2.5, -0.15, .2, 0, 0.15},
			},
		},
		on_punch = function (pos, node)
			minetest.set_node(pos, {name=modname..":electrode"})
		end,
		on_construct = function(pos)
			local meta = minetest.get_meta(pos)
			meta:set_int("enabled", 1)
			meta:set_int("active", 1)
			meta:set_string("power_flag", "LV")
			meta:set_int("stored_eu", 0)
			--meta:set_int("LV_EU_demand", 200)
			set_electrode_demand(meta)
		end,
		technic_run = electrode_run,
		drop = modname..":electrode",
	})

	-- technic.register_machine("LV", mn..":electrode", technic.receiver)
	-- technic.register_machine("LV", mn..":electrode_on", technic.receiver)
	technic.register_machine("LV", modname..":electrode", technic.receiver)
	technic.register_machine("LV", modname..":electrode_on", technic.battery)
end