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--Forcefield mod by ShadowNinja |
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local forcefield_emitter_buffer_size = 10000 |
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local forcefield_emitter_power_consumption = 0.8 |
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local forcefield_update_interval = 1 |
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minetest.register_craft({ |
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output = 'technic:forcefield_emitter_off', |
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recipe = { |
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{'default:mese', 'technic:deployer_off', 'default:mese' }, |
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{'technic:deployer_off', 'technic:motor', 'technic:deployer_off'}, |
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{'default:mese', 'technic:deployer_off', 'default:mese' }, |
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} |
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}) |
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local function get_forcefield_count(range) |
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local count = 0 |
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for x=-range,range do |
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for y=-range,range do |
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for z=-range,range do |
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if ((x*x+y*y+z*z) <= (range * range + range)) then |
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if (y == 0) or ((range-1) * (range-1) + (range-1) <= x*x+y*y+z*z) then |
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count = count + 1 |
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end |
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end |
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end |
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end |
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end |
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return count |
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end |
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local function add_forcefield(pos, range) |
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for x=-range,range do |
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for y=-range,range do |
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for z=-range,range do |
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if ((x*x+y*y+z*z) <= (range * range + range)) then |
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if ((range-1) * (range-1) + (range-1) <= x*x+y*y+z*z) then |
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local np={x=pos.x+x,y=pos.y+y,z=pos.z+z} |
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local n = minetest.env:get_node(np).name |
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if (n == "air") then |
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minetest.env:add_node(np, {name = "technic:forcefield"}) |
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end |
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end |
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end |
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end |
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end |
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end |
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return true |
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end |
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local function remove_forcefield(p, range) |
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for x=-range,range do |
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for y=-range,range do |
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for z=-range,range do |
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if ((x*x+y*y+z*z) <= (range * range + range)) then |
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if ((range-1) * (range-1) + (range-1) <= x*x+y*y+z*z) then |
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local np={x=p.x+x,y=p.y+y,z=p.z+z} |
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local n = minetest.env:get_node(np).name |
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if (n == "technic:forcefield") then |
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minetest.env:remove_node(np) |
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end |
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end |
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end |
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end |
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end |
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end |
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end |
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local forcefield_receive_fields = function(pos, formname, fields, sender) |
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local meta = minetest.env:get_meta(pos) |
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local range = meta:get_int("range") |
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if fields.add then range = range + 1 end |
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if fields.subtract then range = range - 1 end |
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if fields.toggle then |
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if meta:get_int("enabled") == 1 then |
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meta:set_int("enabled", 0) |
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else |
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meta:set_int("enabled", 1) |
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end |
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end |
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if range <= 20 and range >= 0 and meta:get_int("range") ~= range then |
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remove_forcefield(pos, meta:get_int("range")) |
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meta:set_int("range", range) |
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local buffer = meta:get_float("internal_EU_buffer") |
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local buffer_size = meta:get_float("internal_EU_buffer_size") |
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local load = math.floor(buffer / buffer_size * 100) |
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meta:set_string("formspec", get_forcefield_formspec(range, 0)) |
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end |
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end |
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local get_forcefield_formspec = function(range, load) |
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if not load then load = 0 end |
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return "invsize[8,9;]".. |
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"label[0,0;Forcefield emitter]".. |
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"label[1,3;Power level]".. |
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"image[1,1;1,2;technic_power_meter_bg.png^[lowpart:".. |
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load..":technic_power_meter_fg.png]".. |
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"label[4,1;Range]".. |
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"label[4,2;"..range.."]".. |
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"button[3,2;1,1;add;+]".. |
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"button[5,2;1,1;subtract;-]".. |
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"button[3,3;3,1;toggle;Enable/Disable]".. |
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"list[current_player;main;0,5;8,4;]" |
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end |
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local forcefield_check = function(pos) |
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local meta = minetest.env:get_meta(pos) |
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local node = minetest.env:get_node(pos) |
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local internal_EU_buffer=meta:get_float("internal_EU_buffer") |
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local internal_EU_buffer_size=meta:get_float("internal_EU_buffer_size") |
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local load = math.floor(internal_EU_buffer/internal_EU_buffer_size * 100) |
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meta:set_string("formspec", get_forcefield_formspec(meta:get_int("range"), load)) |
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local power_requirement = get_forcefield_count(meta:get_int("range")) * forcefield_emitter_power_consumption |
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if meta:get_int("enabled") == 1 and internal_EU_buffer >= power_requirement then |
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if node.name == "technic:forcefield_emitter_off" then |
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hacky_swap_node(pos, "technic:forcefield_emitter_on") |
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end |
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internal_EU_buffer=internal_EU_buffer-power_requirement; |
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meta:set_float("internal_EU_buffer", internal_EU_buffer) |
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add_forcefield(pos, meta:get_int("range")) |
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else |
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if node.name == "technic:forcefield_emitter_on" then |
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remove_forcefield(pos, meta:get_int("range")) |
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hacky_swap_node(pos, "technic:forcefield_emitter_off") |
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end |
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end |
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return true |
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end |
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local mesecons = {effector = { |
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action_on = function(pos, node) |
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minetest.env:get_meta(pos):set_int("enabled", 0) |
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end, |
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action_off = function(pos, node) |
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minetest.env:get_meta(pos):set_int("enabled", 1) |
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end |
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}} |
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minetest.register_node("technic:forcefield_emitter_off", { |
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description = "Forcefield emitter", |
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inventory_image = minetest.inventorycube("technic_forcefield_emitter_off.png"), |
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tiles = {"technic_forcefield_emitter_off.png"}, |
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is_ground_content = true, |
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groups = {cracky = 1}, |
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on_timer = forcefield_check, |
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on_receive_fields = forcefield_receive_fields, |
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on_construct = function(pos) |
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minetest.env:get_node_timer(pos):start(forcefield_update_interval) |
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local meta = minetest.env:get_meta(pos) |
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meta:set_float("technic_power_machine", 1) |
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meta:set_float("internal_EU_buffer", 0) |
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meta:set_float("internal_EU_buffer_size", forcefield_emitter_buffer_size) |
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meta:set_int("range", 10) |
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meta:set_int("enabled", 1) |
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meta:set_string("formspec", get_forcefield_formspec(meta:get_int("range", 0))) |
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meta:set_string("infotext", "Forcefield emitter"); |
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end, |
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mesecons = mesecons |
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}) |
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minetest.register_node("technic:forcefield_emitter_on", { |
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description = "Forcefield emitter on (you hacker you)", |
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tiles = {"technic_forcefield_emitter_on.png"}, |
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is_ground_content = true, |
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groups = {cracky = 1, not_in_creative_inventory=1}, |
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drop='"technic:forcefield_emitter_off" 1', |
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on_timer = forcefield_check, |
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on_receive_fields = forcefield_receive_fields, |
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on_construct = function(pos) |
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minetest.env:get_node_timer(pos):start(forcefield_update_interval) |
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local meta = minetest.env:get_meta(pos) |
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meta:set_float("technic_power_machine", 1) |
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meta:set_float("internal_EU_buffer", 0) |
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meta:set_float("internal_EU_buffer_size", forcefield_emitter_buffer_size) |
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meta:set_int("range", 10) |
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meta:set_int("enabled", 1) |
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meta:set_string("formspec", get_forcefield_formspec(meta:get_int("range"), 0)) |
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meta:set_string("infotext", "Forcefield emitter"); |
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end, |
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on_dig = function(pos, node, digger) |
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remove_forcefield(pos, minetest.env:get_meta(pos):get_int("range")) |
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return minetest.node_dig(pos, node, digger) |
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end, |
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technic_power_machine=1, |
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mesecons = mesecons |
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}) |
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minetest.register_node("technic:forcefield", { |
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description = "Forcefield (you hacker you)", |
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sunlight_propagates = true, |
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drop = '', |
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tiles = {{name="technic_forcefield_animated.png", animation={type="vertical_frames", aspect_w=16, aspect_h=16, length=2.0}}}, |
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is_ground_content = true, |
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groups = {not_in_creative_inventory=1, unbreakable=1}, |
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paramtype = "light", |
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drawtype = "nodebox", |
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node_box = { --hacky way to get the field blue and not see through the ground |
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type = "fixed", |
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fixed={ |
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{-.5,-.5,-.5,.5,.5,.5}, |
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}, |
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}, |
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}) |
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technic.register_MV_machine("technic:forcefield_emitter_on","RE") |
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technic.register_MV_machine("technic:forcefield_emitter_off","RE") |