204 lines
5.6 KiB
Lua
204 lines
5.6 KiB
Lua
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-- LV Lamp - a powerful light source.
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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 mat = technic.materials
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local demand = 50
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local desc = S("@1 Lamp", S("LV"))
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local active_desc = S("@1 Active", desc).."\n"..S("Demand: @1", technic.EU_string(demand))
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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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-- 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 cid_light = minetest.get_content_id("technic:dummy_light_source")
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local cid_air = minetest.CONTENT_AIR
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local function illuminate(pos, active)
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local pos1 = {x = pos.x - 3, y = pos.y - 3, z = pos.z - 3}
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local pos2 = {x = pos.x + 3, y = pos.y - 1, z = pos.z + 3}
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local vm = minetest.get_voxel_manip()
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local emin, emax = vm:read_from_map(pos1, pos2)
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local va = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
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local node_data = vm:get_data()
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local find_node = active and cid_air or cid_light
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local set_node = active and cid_light or cid_air
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local dirty = false
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for i in va:iterp(pos1, pos2) do
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if node_data[i] == find_node then
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node_data[i] = set_node
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dirty = true
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end
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end
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if dirty then
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vm:set_data(node_data)
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vm:write_to_map()
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end
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end
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local function set_random_timer(pos, mint, maxt)
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local t = math.random(mint * 10, maxt * 10) * 0.1
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minetest.get_node_timer(pos):start(t)
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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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set_random_timer(pos, 0.2, 1)
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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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set_random_timer(pos, 0.2, 2)
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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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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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set_random_timer(pos, 0.2, 1)
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end
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end
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minetest.register_node("technic:lv_lamp", {
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description = desc,
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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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collision_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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selection_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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groups = {cracky = 2, technic_machine = 1, technic_lv = 1, pickaxey = 2},
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is_ground_content = false,
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_mcl_blast_resistance = 1,
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_mcl_hardness = 0.8,
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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_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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on_destruct = illuminate,
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on_rightclick = lamp_toggle,
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on_timer = function(pos)
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illuminate(pos, false)
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-- Don't start the timer again, otherwise lights will fight each other
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end,
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})
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minetest.register_node("technic:lv_lamp_active", {
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description = active_desc,
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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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collision_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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selection_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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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, pickaxey = 2},
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is_ground_content = false,
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_mcl_blast_resistance = 1,
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_mcl_hardness = 0.8,
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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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technic_on_disable = function(pos)
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technic.swap_node(pos, "technic:lv_lamp")
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set_random_timer(pos, 0.2, 1)
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end,
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on_destruct = illuminate,
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on_rightclick = lamp_toggle,
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on_timer = function(pos, elapsed)
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if elapsed < 60 then -- Don't check immediately after being unloaded
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illuminate(pos, true)
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end
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set_random_timer(pos, 30, 60) -- Check every 30-60 seconds
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end,
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})
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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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{mat.glass, mat.glass, mat.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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