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-- LV Lamp
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-- Illuminates a 7x7x3(H) volume below itself with light bright as the sun.
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local S = technic.getter
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local desc = S("@1 Lamp", S("LV"))
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local active_desc = S("@1 Active", desc)
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local unpowered_desc = S("@1 Unpowered", desc)
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local off_desc = S("@1 Off", desc)
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local demand = 50
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-- Invisible light source node used for illumination
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minetest.register_node("technic:dummy_light_source", {
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description = S("Dummy light source node"),
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inventory_image = "technic_dummy_light_source.png",
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wield_image = "technic_dummy_light_source.png",
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paramtype = "light",
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drawtype = "airlike",
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light_source = 14,
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sunlight_propagates = true,
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walkable = false,
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buildable_to = true,
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diggable = false,
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pointable = false,
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--drop = "", -- Intentionally allowed to drop itself
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groups = {not_in_creative_inventory = 1}
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})
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local function illuminate(pos, active)
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local pos1 = {x = pos.x - 3, y = pos.y - 1, z = pos.z - 3}
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local pos2 = {x = pos.x + 3, y = pos.y - 3, z = pos.z + 3}
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local find_node = active and "air" or "technic:dummy_light_source"
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local set_node = {name = (active and "technic:dummy_light_source" or "air")}
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for _,p in pairs(minetest.find_nodes_in_area(pos1, pos2, find_node)) do
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minetest.set_node(p, set_node)
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end
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end
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local function lamp_run(pos, node)
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local meta = minetest.get_meta(pos)
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if meta:get_int("LV_EU_demand") == 0 then
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return -- Lamp is turned off
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end
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local eu_input = meta:get_int("LV_EU_input")
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if node.name == "technic:lv_lamp_active" then
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if eu_input < demand then
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technic.swap_node(pos, "technic:lv_lamp")
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meta:set_string("infotext", unpowered_desc)
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illuminate(pos, false)
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else
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illuminate(pos, true)
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end
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elseif node.name == "technic:lv_lamp" then
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if eu_input >= demand then
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technic.swap_node(pos, "technic:lv_lamp_active")
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meta:set_string("infotext", active_desc)
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illuminate(pos, true)
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end
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end
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end
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local function lamp_toggle(pos, node, player)
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if not player or minetest.is_protected(pos, player:get_player_name()) then
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return
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end
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local meta = minetest.get_meta(pos)
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if meta:get_int("LV_EU_demand") == 0 then
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meta:set_string("infotext", active_desc)
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meta:set_int("LV_EU_demand", demand)
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else
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illuminate(pos, false)
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technic.swap_node(pos, "technic:lv_lamp")
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meta:set_string("infotext", off_desc)
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meta:set_int("LV_EU_demand", 0)
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end
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end
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local common_fields = {
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drawtype = "nodebox",
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node_box = {
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type = "fixed",
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fixed = {0.5,0.5,0.5,-0.5,-0.2,-0.5}
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},
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tiles = {
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"technic_lv_lamp_top.png",
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"technic_lv_lamp_bottom.png",
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"technic_lv_lamp_side.png",
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"technic_lv_lamp_side.png",
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"technic_lv_lamp_side.png",
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"technic_lv_lamp_side.png"
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},
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connect_sides = {"front", "back", "left", "right", "top"},
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can_dig = technic.machine_can_dig,
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technic_run = lamp_run,
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on_destruct = illuminate,
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on_rightclick = lamp_toggle
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}
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local ndef
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ndef = {
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description = desc,
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groups = {cracky = 2, technic_machine = 1, technic_lv = 1},
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on_construct = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_string("infotext", desc)
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meta:set_int("LV_EU_demand", demand)
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end
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}
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for k, v in pairs(common_fields) do
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ndef[k] = v
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end
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minetest.register_node("technic:lv_lamp", ndef)
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ndef = {
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description = active_desc,
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paramtype = "light",
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light_source = 14,
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drop = "technic:lv_lamp",
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groups = {cracky = 2, technic_machine = 1, technic_lv = 1, not_in_creative_inventory = 1},
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technic_on_disable = function(pos)
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illuminate(pos, false)
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technic.swap_node(pos, "technic:lv_lamp")
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end,
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}
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for k, v in pairs(common_fields) do
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ndef[k] = v
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end
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minetest.register_node("technic:lv_lamp_active", ndef)
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technic.register_machine("LV", "technic:lv_lamp", technic.receiver)
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technic.register_machine("LV", "technic:lv_lamp_active", technic.receiver)
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minetest.register_craft({
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output = "technic:lv_lamp",
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recipe = {
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{"default:glass", "default:glass", "default:glass"},
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{"technic:lv_led", "technic:lv_led", "technic:lv_led"},
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{"mesecons_materials:glue", "technic:lv_cable", "mesecons_materials:glue"},
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}
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})
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