| | |
| | | -- The enriched uranium rod driven EU generator. |
| | | -- A very large and advanced machine providing vast amounts of power. |
| | | -- Very efficient but also expensive to run as it needs uranium. (10000EU 86400 ticks (one week)) |
| | | -- Provides HV EUs that can be down converted as needed. |
| | | -- |
| | | -- The nuclear reactor core needs water and a protective shield to work. |
| | | -- This is checked now and then and if the machine is tampered with... BOOM! |
| | | --[[ |
| | | The enriched uranium rod driven EU generator. |
| | | A very large and advanced machine providing vast amounts of power. |
| | | Very efficient but also expensive to run as it needs uranium. |
| | | Provides 10000 HV EUs for one week (only counted when loaded). |
| | | |
| | | local burn_ticks = 7 * 24 * 60 * 60 -- (seconds). |
| | | local power_supply = 100000 -- EUs |
| | | local fuel_type = "technic:uranium_fuel" -- The reactor burns this stuff |
| | | The nuclear reactor core requires a casing of water and a protective |
| | | shield to work. This is checked now and then and if the casing is not |
| | | intact the reactor will melt down! |
| | | --]] |
| | | |
| | | local burn_ticks = 7 * 24 * 60 * 60 -- Seconds |
| | | local power_supply = 100000 -- EUs |
| | | local fuel_type = "technic:uranium_fuel" -- The reactor burns this |
| | | local digiline_meltdown = technic.config:get_bool("enable_nuclear_reactor_digiline_selfdestruct") |
| | | local digiline_remote_path = minetest.get_modpath("digiline_remote") |
| | | |
| | | local S = technic.getter |
| | | |
| | | if not vector.length_square then |
| | | vector.length_square = function (v) |
| | | return v.x*v.x + v.y*v.y + v.z*v.z |
| | | end |
| | | end |
| | | local reactor_desc = S("@1 Nuclear Reactor Core", S("HV")) |
| | | local cable_entry = "^technic_cable_connection_overlay.png" |
| | | |
| | | -- FIXME: recipe must make more sense like a rod recepticle, steam chamber, HV generator? |
| | | -- FIXME: Recipe should make more sense like a rod recepticle, steam chamber, HV generator? |
| | | minetest.register_craft({ |
| | | output = 'technic:hv_nuclear_reactor_core', |
| | | recipe = { |
| | | {'technic:carbon_plate', 'default:obsidian_glass', 'technic:carbon_plate'}, |
| | | {'technic:composite_plate', 'technic:machine_casing', 'technic:composite_plate'}, |
| | | {'technic:stainless_steel_ingot', 'technic:hv_cable0', 'technic:stainless_steel_ingot'}, |
| | | {'technic:stainless_steel_ingot', 'technic:hv_cable', 'technic:stainless_steel_ingot'}, |
| | | } |
| | | }) |
| | | |
| | | local generator_formspec = |
| | | "invsize[8,9;]".. |
| | | local function make_reactor_formspec(meta) |
| | | local f = "size[8,9]".. |
| | | "label[0,0;"..S("Nuclear Reactor Rod Compartment").."]".. |
| | | "list[current_name;src;2,1;3,2;]".. |
| | | "list[current_player;main;0,5;8,4;]" |
| | | "list[current_player;main;0,5;8,4;]".. |
| | | "listring[]".. |
| | | "button[5.5,1.5;2,1;start;Start]".. |
| | | "checkbox[5.5,2.5;autostart;automatic Start;"..meta:get_string("autostart").."]" |
| | | if not digiline_remote_path then |
| | | return f |
| | | end |
| | | local digiline_enabled = meta:get_string("enable_digiline") |
| | | f = f.."checkbox[0.5,2.8;enable_digiline;Enable Digiline;"..digiline_enabled.."]" |
| | | if digiline_enabled ~= "true" then |
| | | return f |
| | | end |
| | | return f.. |
| | | "button_exit[4.6,3.69;2,1;save;Save]".. |
| | | "field[1,4;4,1;remote_channel;Digiline Remote Channel;${remote_channel}]" |
| | | end |
| | | |
| | | -- "Boxy sphere" |
| | | local nodebox = { |
| | | { -0.353, -0.353, -0.353, 0.353, 0.353, 0.353 }, -- Box |
| | | { -0.495, -0.064, -0.064, 0.495, 0.064, 0.064 }, -- Circle +-x |
| | | { -0.483, -0.128, -0.128, 0.483, 0.128, 0.128 }, |
| | | { -0.462, -0.191, -0.191, 0.462, 0.191, 0.191 }, |
| | | { -0.433, -0.249, -0.249, 0.433, 0.249, 0.249 }, |
| | | { -0.397, -0.303, -0.303, 0.397, 0.303, 0.303 }, |
| | | { -0.305, -0.396, -0.305, 0.305, 0.396, 0.305 }, -- Circle +-y |
| | | { -0.250, -0.432, -0.250, 0.250, 0.432, 0.250 }, |
| | | { -0.191, -0.461, -0.191, 0.191, 0.461, 0.191 }, |
| | | { -0.130, -0.482, -0.130, 0.130, 0.482, 0.130 }, |
| | | { -0.066, -0.495, -0.066, 0.066, 0.495, 0.066 }, |
| | | { -0.064, -0.064, -0.495, 0.064, 0.064, 0.495 }, -- Circle +-z |
| | | { -0.128, -0.128, -0.483, 0.128, 0.128, 0.483 }, |
| | | { -0.191, -0.191, -0.462, 0.191, 0.191, 0.462 }, |
| | | { -0.249, -0.249, -0.433, 0.249, 0.249, 0.433 }, |
| | | { -0.303, -0.303, -0.397, 0.303, 0.303, 0.397 }, |
| | | } |
| | | local SS_OFF = 0 |
| | | local SS_DANGER = 1 |
| | | local SS_CLEAR = 2 |
| | | |
| | | local reactor_siren = {} |
| | | local function siren_set_state(pos, newstate) |
| | | local function siren_set_state(pos, state) |
| | | local hpos = minetest.hash_node_position(pos) |
| | | local siren = reactor_siren[hpos] |
| | | if not siren then |
| | | if newstate == "off" then return end |
| | | siren = {state="off"} |
| | | if state == SS_OFF then return end |
| | | siren = {state=SS_OFF} |
| | | reactor_siren[hpos] = siren |
| | | end |
| | | if newstate == "danger" and siren.state ~= "danger" then |
| | | if state == SS_DANGER and siren.state ~= SS_DANGER then |
| | | if siren.handle then minetest.sound_stop(siren.handle) end |
| | | siren.handle = minetest.sound_play("technic_hv_nuclear_reactor_siren_danger_loop", {pos=pos, gain=1.5, loop=true, max_hear_distance=48}) |
| | | siren.state = "danger" |
| | | elseif newstate == "clear" then |
| | | siren.handle = minetest.sound_play("technic_hv_nuclear_reactor_siren_danger_loop", |
| | | {pos=pos, gain=1.5, loop=true, max_hear_distance=48}) |
| | | siren.state = SS_DANGER |
| | | elseif state == SS_CLEAR then |
| | | if siren.handle then minetest.sound_stop(siren.handle) end |
| | | local clear_handle = minetest.sound_play("technic_hv_nuclear_reactor_siren_clear", {pos=pos, gain=1.5, loop=false, max_hear_distance=48}) |
| | | local clear_handle = minetest.sound_play("technic_hv_nuclear_reactor_siren_clear", |
| | | {pos=pos, gain=1.5, loop=false, max_hear_distance=48}) |
| | | siren.handle = clear_handle |
| | | siren.state = "clear" |
| | | minetest.after(10, function () |
| | | if siren.handle == clear_handle then |
| | | minetest.sound_stop(clear_handle) |
| | | if reactor_siren[hpos] == siren then |
| | | reactor_siren[hpos] = nil |
| | | end |
| | | siren.state = SS_CLEAR |
| | | minetest.after(10, function() |
| | | if siren.handle ~= clear_handle then return end |
| | | minetest.sound_stop(clear_handle) |
| | | if reactor_siren[hpos] == siren then |
| | | reactor_siren[hpos] = nil |
| | | end |
| | | end) |
| | | elseif newstate == "off" and siren.state ~= "off" then |
| | | elseif state == SS_OFF and siren.state ~= SS_OFF then |
| | | if siren.handle then minetest.sound_stop(siren.handle) end |
| | | siren.handle = nil |
| | | reactor_siren[hpos] = nil |
| | | end |
| | | end |
| | | |
| | | local function siren_danger(pos, meta) |
| | | meta:set_int("siren", 1) |
| | | siren_set_state(pos, "danger") |
| | | siren_set_state(pos, SS_DANGER) |
| | | end |
| | | |
| | | local function siren_clear(pos, meta) |
| | | if meta:get_int("siren") ~= 0 then |
| | | siren_set_state(pos, "clear") |
| | | siren_set_state(pos, SS_CLEAR) |
| | | meta:set_int("siren", 0) |
| | | end |
| | | end |
| | | |
| | | -- The standard reactor structure consists of a 9x9x9 cube. A cross |
| | | -- section through the middle: |
| | | -- |
| | | -- CCCC CCCC |
| | | -- CBBB BBBC |
| | | -- CBSS SSBC |
| | | -- CBSWWWSBC |
| | | -- CBSW#WSBC |
| | | -- CBSW|WSBC |
| | | -- CBSS|SSBC |
| | | -- CBBB|BBBC |
| | | -- CCCC|CCCC |
| | | -- C = Concrete, B = Blast-resistant concrete, S = Stainless Steel, |
| | | -- W = water node, # = reactor core, | = HV cable |
| | | -- |
| | | -- The man-hole and the HV cable are only in the middle, and the man-hole |
| | | -- is optional. |
| | | -- |
| | | -- For the reactor to operate and not melt down, it insists on the inner |
| | | -- 7x7x7 portion (from the core out to the blast-resistant concrete) |
| | | -- being intact. Intactness only depends on the number of nodes of the |
| | | -- right type in each layer. The water layer must have water in all but |
| | | -- at most one node; the steel and blast-resistant concrete layers must |
| | | -- have the right material in all but at most two nodes. The permitted |
| | | -- gaps are meant for the cable and man-hole, but can actually be anywhere |
| | | -- and contain anything. For the reactor to be useful, a cable must |
| | | -- connect to the core, but it can go in any direction. |
| | | -- |
| | | -- The outer concrete layer of the standard structure is not required |
| | | -- for the reactor to operate. It is noted here because it used to |
| | | -- be mandatory, and for historical reasons (that it predates the |
| | | -- implementation of radiation) it needs to continue being adequate |
| | | -- shielding of legacy reactors. If it ever ceases to be adequate |
| | | -- shielding for new reactors, legacy ones should be grandfathered. |
| | | local reactor_structure_badness = function(pos) |
| | | --[[ |
| | | The standard reactor structure consists of a 9x9x9 cube. A cross |
| | | section through the middle: |
| | | |
| | | CCCC CCCC |
| | | CBBB BBBC |
| | | CBLL LLBC |
| | | CBLWWWLBC |
| | | CBLW#WLBC |
| | | CBLW|WLBC |
| | | CBLL|LLBC |
| | | CBBB|BBBC |
| | | CCCC|CCCC |
| | | C = Concrete, B = Blast-resistant concrete, L = Lead, |
| | | W = water node, # = reactor core, | = HV cable |
| | | |
| | | The man-hole is optional (but necessary for refueling). |
| | | |
| | | For the reactor to operate and not melt down, it insists on the inner |
| | | 7x7x7 portion (from the core out to the blast-resistant concrete) |
| | | being intact. Intactness only depends on the number of nodes of the |
| | | right type in each layer. The water layer must have water in all but |
| | | at most one node; the steel and blast-resistant concrete layers must |
| | | have the right material in all but at most two nodes. The permitted |
| | | gaps are meant for the cable and man-hole, but can actually be anywhere |
| | | and contain anything. For the reactor to be useful, a cable must |
| | | connect to the core, but it can go in any direction. |
| | | |
| | | The outer concrete layer of the standard structure is not required |
| | | for the reactor to operate. It is noted here because it used to |
| | | be mandatory, and for historical reasons (that it predates the |
| | | implementation of radiation) it needs to continue being adequate |
| | | shielding of legacy reactors. If it ever ceases to be adequate |
| | | shielding for new reactors, legacy ones should be grandfathered. |
| | | |
| | | For legacy reasons, if the reactor has a stainless steel layer instead |
| | | of a lead layer it will be converted to a lead layer. |
| | | --]] |
| | | local function reactor_structure_badness(pos) |
| | | local vm = VoxelManip() |
| | | local pos1 = vector.subtract(pos, 3) |
| | | local pos2 = vector.add(pos, 3) |
| | |
| | | local area = VoxelArea:new({MinEdge=MinEdge, MaxEdge=MaxEdge}) |
| | | |
| | | local c_blast_concrete = minetest.get_content_id("technic:blast_resistant_concrete") |
| | | local c_stainless_steel = minetest.get_content_id("technic:stainless_steel_block") |
| | | local c_lead = minetest.get_content_id("technic:lead_block") |
| | | local c_steel = minetest.get_content_id("technic:stainless_steel_block") |
| | | local c_water_source = minetest.get_content_id("default:water_source") |
| | | local c_water_flowing = minetest.get_content_id("default:water_flowing") |
| | | |
| | | local blastlayer, steellayer, waterlayer = 0, 0, 0 |
| | | local blast_layer, steel_layer, lead_layer, water_layer = 0, 0, 0, 0 |
| | | |
| | | for z = pos1.z, pos2.z do |
| | | for y = pos1.y, pos2.y do |
| | |
| | | y == pos1.y or y == pos2.y or |
| | | z == pos1.z or z == pos2.z then |
| | | if cid == c_blast_concrete then |
| | | blastlayer = blastlayer + 1 |
| | | blast_layer = blast_layer + 1 |
| | | end |
| | | elseif x == pos1.x+1 or x == pos2.x-1 or |
| | | y == pos1.y+1 or y == pos2.y-1 or |
| | | z == pos1.z+1 or z == pos2.z-1 then |
| | | if cid == c_stainless_steel then |
| | | steellayer = steellayer + 1 |
| | | y == pos1.y+1 or y == pos2.y-1 or |
| | | z == pos1.z+1 or z == pos2.z-1 then |
| | | if cid == c_lead then |
| | | lead_layer = lead_layer + 1 |
| | | elseif cid == c_steel then |
| | | steel_layer = steel_layer + 1 |
| | | end |
| | | elseif x == pos1.x+2 or x == pos2.x-2 or |
| | | y == pos1.y+2 or y == pos2.y-2 or |
| | | z == pos1.z+2 or z == pos2.z-2 then |
| | | y == pos1.y+2 or y == pos2.y-2 or |
| | | z == pos1.z+2 or z == pos2.z-2 then |
| | | if cid == c_water_source or cid == c_water_flowing then |
| | | waterlayer = waterlayer + 1 |
| | | water_layer = water_layer + 1 |
| | | end |
| | | end |
| | | end |
| | | end |
| | | end |
| | | if waterlayer > 25 then waterlayer = 25 end |
| | | if steellayer > 96 then steellayer = 96 end |
| | | if blastlayer > 216 then blastlayer = 216 end |
| | | return (25 - waterlayer) + (96 - steellayer) + (216 - blastlayer) |
| | | |
| | | if steel_layer >= 96 then |
| | | for z = pos1.z+1, pos2.z-1 do |
| | | for y = pos1.y+1, pos2.y-1 do |
| | | for x = pos1.x+1, pos2.x-1 do |
| | | local vi = area:index(x, y, z) |
| | | if x == pos1.x+1 or x == pos2.x-1 or |
| | | y == pos1.y+1 or y == pos2.y-1 or |
| | | z == pos1.z+1 or z == pos2.z-1 then |
| | | if data[vi] == c_steel then |
| | | data[vi] = c_lead |
| | | end |
| | | end |
| | | end |
| | | end |
| | | end |
| | | vm:set_data(data) |
| | | vm:write_to_map() |
| | | lead_layer = steel_layer |
| | | end |
| | | |
| | | if water_layer > 25 then water_layer = 25 end |
| | | if lead_layer > 96 then lead_layer = 96 end |
| | | if blast_layer > 216 then blast_layer = 216 end |
| | | return (25 - water_layer) + (96 - lead_layer) + (216 - blast_layer) |
| | | end |
| | | |
| | | local function meltdown_reactor(pos) |
| | | print("A reactor melted down at "..minetest.pos_to_string(pos)) |
| | | minetest.set_node(pos, {name="technic:corium_source"}) |
| | | |
| | | local function melt_down_reactor(pos) |
| | | minetest.log("action", "A reactor melted down at "..minetest.pos_to_string(pos)) |
| | | minetest.set_node(pos, {name = "technic:corium_source"}) |
| | | end |
| | | |
| | | |
| | | local function start_reactor(pos, meta) |
| | | if minetest.get_node(pos).name ~= "technic:hv_nuclear_reactor_core" then |
| | | return false |
| | | end |
| | | local inv = meta:get_inventory() |
| | | if inv:is_empty("src") then |
| | | return false |
| | | end |
| | | local src_list = inv:get_list("src") |
| | | local correct_fuel_count = 0 |
| | | for _, src_stack in pairs(src_list) do |
| | | if src_stack and src_stack:get_name() == fuel_type then |
| | | correct_fuel_count = correct_fuel_count + 1 |
| | | end |
| | | end |
| | | -- Check that the reactor is complete and has the correct fuel |
| | | if correct_fuel_count ~= 6 or reactor_structure_badness(pos) ~= 0 then |
| | | return false |
| | | end |
| | | meta:set_int("burn_time", 1) |
| | | technic.swap_node(pos, "technic:hv_nuclear_reactor_core_active") |
| | | meta:set_int("HV_EU_supply", power_supply) |
| | | for idx, src_stack in pairs(src_list) do |
| | | src_stack:take_item() |
| | | inv:set_stack("src", idx, src_stack) |
| | | end |
| | | return true |
| | | end |
| | | |
| | | |
| | | minetest.register_abm({ |
| | | label = "Machines: reactor melt-down check", |
| | | nodenames = {"technic:hv_nuclear_reactor_core_active"}, |
| | | interval = 1, |
| | | interval = 4, |
| | | chance = 1, |
| | | action = function (pos, node) |
| | | local meta = minetest.get_meta(pos) |
| | |
| | | local accum_badness = meta:get_int("structure_accumulated_badness") |
| | | if badness == 0 then |
| | | if accum_badness ~= 0 then |
| | | meta:set_int("structure_accumulated_badness", accum_badness - 1) |
| | | meta:set_int("structure_accumulated_badness", math.max(accum_badness - 4, 0)) |
| | | siren_clear(pos, meta) |
| | | end |
| | | else |
| | | siren_danger(pos, meta) |
| | | accum_badness = accum_badness + badness |
| | | if accum_badness >= 100 then |
| | | meltdown_reactor(pos) |
| | | if accum_badness >= 25 then |
| | | melt_down_reactor(pos) |
| | | else |
| | | meta:set_int("structure_accumulated_badness", accum_badness) |
| | | end |
| | |
| | | end, |
| | | }) |
| | | |
| | | local run = function(pos, node) |
| | | local function run(pos, node) |
| | | local meta = minetest.get_meta(pos) |
| | | local machine_name = S("Nuclear %s Generator Core"):format("HV") |
| | | local burn_time = meta:get_int("burn_time") or 0 |
| | | |
| | | if burn_time >= burn_ticks or burn_time == 0 then |
| | | local inv = meta:get_inventory() |
| | | if not inv:is_empty("src") then |
| | | local srclist = inv:get_list("src") |
| | | local correct_fuel_count = 0 |
| | | for _, srcstack in pairs(srclist) do |
| | | if srcstack then |
| | | if srcstack:get_name() == fuel_type then |
| | | correct_fuel_count = correct_fuel_count + 1 |
| | | end |
| | | end |
| | | end |
| | | -- Check that the reactor is complete as well |
| | | -- as the correct number of correct fuel |
| | | if correct_fuel_count == 6 and |
| | | reactor_structure_badness(pos) == 0 then |
| | | meta:set_int("burn_time", 1) |
| | | technic.swap_node(pos, "technic:hv_nuclear_reactor_core_active") |
| | | meta:set_int("HV_EU_supply", power_supply) |
| | | for idx, srcstack in pairs(srclist) do |
| | | srcstack:take_item() |
| | | inv:set_stack("src", idx, srcstack) |
| | | end |
| | | if digiline_remote_path and meta:get_int("HV_EU_supply") == power_supply then |
| | | digiline_remote.send_to_node(pos, meta:get_string("remote_channel"), |
| | | "fuel used", 6, true) |
| | | end |
| | | if meta:get_string("autostart") == "true" then |
| | | if start_reactor(pos, meta) then |
| | | return |
| | | end |
| | | end |
| | | meta:set_int("HV_EU_supply", 0) |
| | | meta:set_int("burn_time", 0) |
| | | meta:set_string("infotext", S("%s Idle"):format(machine_name)) |
| | | meta:set_string("infotext", S("%s Idle"):format(reactor_desc)) |
| | | technic.swap_node(pos, "technic:hv_nuclear_reactor_core") |
| | | meta:set_int("structure_accumulated_badness", 0) |
| | | siren_clear(pos, meta) |
| | |
| | | burn_time = burn_time + 1 |
| | | meta:set_int("burn_time", burn_time) |
| | | local percent = math.floor(burn_time / burn_ticks * 100) |
| | | meta:set_string("infotext", machine_name.." ("..percent.."%)") |
| | | meta:set_string("infotext", reactor_desc.." ("..percent.."%)") |
| | | meta:set_int("HV_EU_supply", power_supply) |
| | | end |
| | | end |
| | | |
| | | local nuclear_reactor_receive_fields = function(pos, formname, fields, sender) |
| | | local player_name = sender:get_player_name() |
| | | if minetest.is_protected(pos, player_name) then |
| | | minetest.chat_send_player(player_name, "You are not allowed to edit this!") |
| | | minetest.record_protection_violation(pos, player_name) |
| | | return |
| | | end |
| | | local meta = minetest.get_meta(pos) |
| | | local update_formspec = false |
| | | if fields.remote_channel then |
| | | meta:set_string("remote_channel", fields.remote_channel) |
| | | end |
| | | if fields.start then |
| | | local b = start_reactor(pos, meta) |
| | | if b then |
| | | minetest.chat_send_player(player_name, "Start successful") |
| | | else |
| | | minetest.chat_send_player(player_name, "Error") |
| | | end |
| | | end |
| | | if fields.autostart then |
| | | meta:set_string("autostart", fields.autostart) |
| | | update_formspec = true |
| | | end |
| | | if fields.enable_digiline then |
| | | meta:set_string("enable_digiline", fields.enable_digiline) |
| | | update_formspec = true |
| | | end |
| | | if update_formspec then |
| | | meta:set_string("formspec", make_reactor_formspec(meta)) |
| | | end |
| | | end |
| | | |
| | | local digiline_remote_def = function(pos, channel, msg) |
| | | local meta = minetest.get_meta(pos) |
| | | if meta:get_string("enable_digiline") ~= "true" or |
| | | channel ~= meta:get_string("remote_channel") then |
| | | return |
| | | end |
| | | -- Convert string messages to tables: |
| | | local msgt = type(msg) |
| | | if msgt == "string" then |
| | | local smsg = msg:lower() |
| | | msg = {} |
| | | if smsg == "get" then |
| | | msg.command = "get" |
| | | elseif smsg:sub(1, 13) == "self_destruct" then |
| | | msg.command = "self_destruct" |
| | | msg.timer = tonumber(smsg:sub(15)) or 0 |
| | | elseif smsg == "start" then |
| | | msg.command = "start" |
| | | end |
| | | elseif msgt ~= "table" then |
| | | return |
| | | end |
| | | |
| | | if msg.command == "get" then |
| | | local inv = meta:get_inventory() |
| | | local invtable = {} |
| | | for i = 1, 6 do |
| | | local stack = inv:get_stack("src", i) |
| | | if stack:is_empty() then |
| | | invtable[i] = 0 |
| | | elseif stack:get_name() == fuel_type then |
| | | invtable[i] = stack:get_count() |
| | | else |
| | | invtable[i] = -stack:get_count() |
| | | end |
| | | end |
| | | digiline_remote.send_to_node(pos, channel, { |
| | | burn_time = meta:get_int("burn_time"), |
| | | enabled = meta:get_int("HV_EU_supply") == power_supply, |
| | | siren = meta:get_int("siren") == 1, |
| | | structure_accumulated_badness = meta:get_int("structure_accumulated_badness"), |
| | | rods = invtable |
| | | }, 6, true) |
| | | elseif digiline_meltdown and msg.command == "self_destruct" and |
| | | minetest.get_node(pos).name == "technic:hv_nuclear_reactor_core_active" then |
| | | if msg.timer ~= 0 and type(msg.timer) == "number" then |
| | | siren_danger(pos, meta) |
| | | minetest.after(msg.timer, melt_down_reactor, pos) |
| | | else |
| | | melt_down_reactor(pos) |
| | | end |
| | | elseif msg.command == "start" then |
| | | local b = start_reactor(pos, meta) |
| | | if b then |
| | | digiline_remote.send_to_node(pos, channel, "Start successful", 6, true) |
| | | else |
| | | digiline_remote.send_to_node(pos, channel, "Error", 6, true) |
| | | end |
| | | end |
| | | end |
| | | |
| | | minetest.register_node("technic:hv_nuclear_reactor_core", { |
| | | description = S("Nuclear %s Generator Core"):format("HV"), |
| | | tiles = {"technic_hv_nuclear_reactor_core.png", "technic_hv_nuclear_reactor_core.png", |
| | | "technic_hv_nuclear_reactor_core.png", "technic_hv_nuclear_reactor_core.png", |
| | | "technic_hv_nuclear_reactor_core.png", "technic_hv_nuclear_reactor_core.png"}, |
| | | groups = {cracky=1, technic_machine=1}, |
| | | description = reactor_desc, |
| | | tiles = { |
| | | "technic_hv_nuclear_reactor_core.png", |
| | | "technic_hv_nuclear_reactor_core.png"..cable_entry |
| | | }, |
| | | drawtype = "mesh", |
| | | mesh = "technic_reactor.obj", |
| | | groups = {cracky = 1, technic_machine = 1, technic_hv = 1, digiline_remote_receive = 1}, |
| | | legacy_facedir_simple = true, |
| | | sounds = default.node_sound_wood_defaults(), |
| | | drawtype="nodebox", |
| | | paramtype = "light", |
| | | paramtype2 = "facedir", |
| | | stack_max = 1, |
| | | node_box = { |
| | | type = "fixed", |
| | | fixed = nodebox |
| | | }, |
| | | on_receive_fields = nuclear_reactor_receive_fields, |
| | | on_construct = function(pos) |
| | | local meta = minetest.get_meta(pos) |
| | | meta:set_string("infotext", S("Nuclear %s Generator Core"):format("HV")) |
| | | meta:set_int("HV_EU_supply", 0) |
| | | -- Signal to the switching station that this device burns some |
| | | -- sort of fuel and needs special handling |
| | | meta:set_int("HV_EU_from_fuel", 1) |
| | | meta:set_int("burn_time", 0) |
| | | meta:set_string("formspec", generator_formspec) |
| | | meta:set_string("infotext", reactor_desc) |
| | | meta:set_string("formspec", make_reactor_formspec(meta)) |
| | | if digiline_remote_path then |
| | | meta:set_string("remote_channel", |
| | | "nucelear_reactor"..minetest.pos_to_string(pos)) |
| | | end |
| | | local inv = meta:get_inventory() |
| | | inv:set_size("src", 6) |
| | | end, |
| | | end, |
| | | _on_digiline_remote_receive = digiline_remote_def, |
| | | can_dig = technic.machine_can_dig, |
| | | on_destruct = function(pos) siren_set_state(pos, "off") end, |
| | | on_destruct = function(pos) siren_set_state(pos, SS_OFF) end, |
| | | allow_metadata_inventory_put = technic.machine_inventory_put, |
| | | allow_metadata_inventory_take = technic.machine_inventory_take, |
| | | allow_metadata_inventory_move = technic.machine_inventory_move, |
| | |
| | | }) |
| | | |
| | | minetest.register_node("technic:hv_nuclear_reactor_core_active", { |
| | | tiles = {"technic_hv_nuclear_reactor_core.png", "technic_hv_nuclear_reactor_core.png", |
| | | "technic_hv_nuclear_reactor_core.png", "technic_hv_nuclear_reactor_core.png", |
| | | "technic_hv_nuclear_reactor_core.png", "technic_hv_nuclear_reactor_core.png"}, |
| | | groups = {cracky=1, technic_machine=1, radioactive=11000, not_in_creative_inventory=1}, |
| | | tiles = { |
| | | "technic_hv_nuclear_reactor_core.png", |
| | | "technic_hv_nuclear_reactor_core.png"..cable_entry |
| | | }, |
| | | drawtype = "mesh", |
| | | mesh = "technic_reactor.obj", |
| | | groups = {cracky = 1, technic_machine = 1, technic_hv = 1, radioactive = 4, |
| | | not_in_creative_inventory = 1, digiline_remote_receive = 1}, |
| | | legacy_facedir_simple = true, |
| | | sounds = default.node_sound_wood_defaults(), |
| | | drop="technic:hv_nuclear_reactor_core", |
| | | drawtype="nodebox", |
| | | light_source = 15, |
| | | drop = "technic:hv_nuclear_reactor_core", |
| | | light_source = 14, |
| | | paramtype = "light", |
| | | node_box = { |
| | | type = "fixed", |
| | | fixed = nodebox |
| | | }, |
| | | paramtype2 = "facedir", |
| | | on_receive_fields = nuclear_reactor_receive_fields, |
| | | _on_digiline_remote_receive = digiline_remote_def, |
| | | can_dig = technic.machine_can_dig, |
| | | after_dig_node = meltdown_reactor, |
| | | on_destruct = function(pos) siren_set_state(pos, "off") end, |
| | | after_dig_node = melt_down_reactor, |
| | | on_destruct = function(pos) siren_set_state(pos, SS_OFF) end, |
| | | allow_metadata_inventory_put = technic.machine_inventory_put, |
| | | allow_metadata_inventory_take = technic.machine_inventory_take, |
| | | allow_metadata_inventory_move = technic.machine_inventory_move, |
| | | technic_run = run, |
| | | technic_on_disable = function(pos, node) |
| | | local timer = minetest.get_node_timer(pos) |
| | | timer:start(1) |
| | | timer:start(1) |
| | | end, |
| | | on_timer = function(pos, node) |
| | | local meta = minetest.get_meta(pos) |
| | | |
| | | |
| | | -- Connected back? |
| | | if meta:get_int("HV_EU_timeout") > 0 then return false end |
| | | |
| | | |
| | | local burn_time = meta:get_int("burn_time") or 0 |
| | | |
| | | if burn_time >= burn_ticks or burn_time == 0 then |
| | |
| | | siren_clear(pos, meta) |
| | | return false |
| | | end |
| | | |
| | | |
| | | meta:set_int("burn_time", burn_time + 1) |
| | | return true |
| | | end, |
| | |
| | | technic.register_machine("HV", "technic:hv_nuclear_reactor_core", technic.producer) |
| | | technic.register_machine("HV", "technic:hv_nuclear_reactor_core_active", technic.producer) |
| | | |
| | | -- radioactivity |
| | | |
| | | -- Radiation resistance represents the extent to which a material |
| | | -- attenuates radiation passing through it; i.e., how good a radiation |
| | | -- shield it is. This is identified per node type. For materials that |
| | | -- exist in real life, the radiation resistance value that this system |
| | | -- uses for a node type consisting of a solid cube of that material is the |
| | | -- (approximate) number of halvings of ionising radiation that is achieved |
| | | -- by a metre of the material in real life. This is approximately |
| | | -- proportional to density, which provides a good way to estimate it. |
| | | -- Homogeneous mixtures of materials have radiation resistance computed |
| | | -- by a simple weighted mean. Note that the amount of attenuation that |
| | | -- a material achieves in-game is not required to be (and is not) the |
| | | -- same as the attenuation achieved in real life. |
| | | -- |
| | | -- Radiation resistance for a node type may be specified in the node |
| | | -- definition, under the key "radiation_resistance". As an interim |
| | | -- measure, until node definitions widely include this, this code |
| | | -- knows a bunch of values for particular node types in several mods, |
| | | -- and values for groups of node types. The node definition takes |
| | | -- precedence if it specifies a value. Nodes for which no value at |
| | | -- all is known are taken to provide no radiation resistance at all; |
| | | -- this is appropriate for the majority of node types. Only node types |
| | | -- consisting of a fairly homogeneous mass of material should report |
| | | -- non-zero radiation resistance; anything with non-uniform geometry |
| | | -- or complex internal structure should show no radiation resistance. |
| | | -- Fractional resistance values are permitted; two significant figures |
| | | -- is the recommended precision. |
| | | local default_radiation_resistance_per_node = { |
| | | ["default:brick"] = 13, |
| | | ["default:bronzeblock"] = 45, |
| | | ["default:clay"] = 15, |
| | | ["default:coalblock"] = 9.6, |
| | | ["default:cobble"] = 15, |
| | | ["default:copperblock"] = 46, |
| | | ["default:desert_cobble"] = 15, |
| | | ["default:desert_sand"] = 10, |
| | | ["default:desert_stone"] = 17, |
| | | ["default:desert_stonebrick"] = 17, |
| | | ["default:diamondblock"] = 24, |
| | | ["default:dirt"] = 8.2, |
| | | ["default:dirt_with_grass"] = 8.2, |
| | | ["default:dirt_with_grass_footsteps"] = 8.2, |
| | | ["default:dirt_with_snow"] = 8.2, |
| | | ["default:glass"] = 17, |
| | | ["default:goldblock"] = 170, |
| | | ["default:gravel"] = 10, |
| | | ["default:ice"] = 5.6, |
| | | ["default:lava_flowing"] = 8.5, |
| | | ["default:lava_source"] = 17, |
| | | ["default:mese"] = 21, |
| | | ["default:mossycobble"] = 15, |
| | | ["default:nyancat"] = 1000, |
| | | ["default:nyancat_rainbow"] = 1000, |
| | | ["default:obsidian"] = 18, |
| | | ["default:obsidian_glass"] = 18, |
| | | ["default:sand"] = 10, |
| | | ["default:sandstone"] = 15, |
| | | ["default:sandstonebrick"] = 15, |
| | | ["default:snowblock"] = 1.7, |
| | | ["default:steelblock"] = 40, |
| | | ["default:stone"] = 17, |
| | | ["default:stone_with_coal"] = 16, |
| | | ["default:stone_with_copper"] = 20, |
| | | ["default:stone_with_diamond"] = 18, |
| | | ["default:stone_with_gold"] = 34, |
| | | ["default:stone_with_iron"] = 20, |
| | | ["default:stone_with_mese"] = 17, |
| | | ["default:stonebrick"] = 17, |
| | | ["default:water_flowing"] = 2.8, |
| | | ["default:water_source"] = 5.6, |
| | | ["farming:desert_sand_soil"] = 10, |
| | | ["farming:desert_sand_soil_wet"] = 10, |
| | | ["farming:soil"] = 8.2, |
| | | ["farming:soil_wet"] = 8.2, |
| | | ["glooptest:akalin_crystal_glass"] = 21, |
| | | ["glooptest:akalinblock"] = 40, |
| | | ["glooptest:alatro_crystal_glass"] = 21, |
| | | ["glooptest:alatroblock"] = 40, |
| | | ["glooptest:amethystblock"] = 18, |
| | | ["glooptest:arol_crystal_glass"] = 21, |
| | | ["glooptest:crystal_glass"] = 21, |
| | | ["glooptest:emeraldblock"] = 19, |
| | | ["glooptest:heavy_crystal_glass"] = 21, |
| | | ["glooptest:mineral_akalin"] = 20, |
| | | ["glooptest:mineral_alatro"] = 20, |
| | | ["glooptest:mineral_amethyst"] = 17, |
| | | ["glooptest:mineral_arol"] = 20, |
| | | ["glooptest:mineral_desert_coal"] = 16, |
| | | ["glooptest:mineral_desert_iron"] = 20, |
| | | ["glooptest:mineral_emerald"] = 17, |
| | | ["glooptest:mineral_kalite"] = 20, |
| | | ["glooptest:mineral_ruby"] = 18, |
| | | ["glooptest:mineral_sapphire"] = 18, |
| | | ["glooptest:mineral_talinite"] = 20, |
| | | ["glooptest:mineral_topaz"] = 18, |
| | | ["glooptest:reinforced_crystal_glass"] = 21, |
| | | ["glooptest:rubyblock"] = 27, |
| | | ["glooptest:sapphireblock"] = 27, |
| | | ["glooptest:talinite_crystal_glass"] = 21, |
| | | ["glooptest:taliniteblock"] = 40, |
| | | ["glooptest:topazblock"] = 24, |
| | | ["mesecons_extrawires:mese_powered"] = 21, |
| | | ["moreblocks:cactus_brick"] = 13, |
| | | ["moreblocks:cactus_checker"] = 8.5, |
| | | ["moreblocks:circle_stone_bricks"] = 17, |
| | | ["moreblocks:clean_glass"] = 17, |
| | | ["moreblocks:coal_checker"] = 9.0, |
| | | ["moreblocks:coal_glass"] = 17, |
| | | ["moreblocks:coal_stone"] = 17, |
| | | ["moreblocks:coal_stone_bricks"] = 17, |
| | | ["moreblocks:glow_glass"] = 17, |
| | | ["moreblocks:grey_bricks"] = 15, |
| | | ["moreblocks:iron_checker"] = 11, |
| | | ["moreblocks:iron_glass"] = 17, |
| | | ["moreblocks:iron_stone"] = 17, |
| | | ["moreblocks:iron_stone_bricks"] = 17, |
| | | ["moreblocks:plankstone"] = 9.3, |
| | | ["moreblocks:split_stone_tile"] = 15, |
| | | ["moreblocks:split_stone_tile_alt"] = 15, |
| | | ["moreblocks:stone_tile"] = 15, |
| | | ["moreblocks:super_glow_glass"] = 17, |
| | | ["moreblocks:tar"] = 7.0, |
| | | ["moreblocks:wood_tile"] = 1.7, |
| | | ["moreblocks:wood_tile_center"] = 1.7, |
| | | ["moreblocks:wood_tile_down"] = 1.7, |
| | | ["moreblocks:wood_tile_flipped"] = 1.7, |
| | | ["moreblocks:wood_tile_full"] = 1.7, |
| | | ["moreblocks:wood_tile_left"] = 1.7, |
| | | ["moreblocks:wood_tile_right"] = 1.7, |
| | | ["moreblocks:wood_tile_up"] = 1.7, |
| | | ["moreores:mineral_mithril"] = 18, |
| | | ["moreores:mineral_silver"] = 21, |
| | | ["moreores:mineral_tin"] = 19, |
| | | ["moreores:mithril_block"] = 26, |
| | | ["moreores:silver_block"] = 53, |
| | | ["moreores:tin_block"] = 37, |
| | | ["snow:snow_brick"] = 2.8, |
| | | ["technic:brass_block"] = 43, |
| | | ["technic:carbon_steel_block"] = 40, |
| | | ["technic:cast_iron_block"] = 40, |
| | | ["technic:chernobylite_block"] = 40, |
| | | ["technic:chromium_block"] = 37, |
| | | ["technic:corium_flowing"] = 40, |
| | | ["technic:corium_source"] = 80, |
| | | ["technic:granite"] = 18, |
| | | ["technic:marble"] = 18, |
| | | ["technic:marble_bricks"] = 18, |
| | | ["technic:mineral_chromium"] = 19, |
| | | ["technic:mineral_uranium"] = 71, |
| | | ["technic:mineral_zinc"] = 19, |
| | | ["technic:stainless_steel_block"] = 40, |
| | | ["technic:zinc_block"] = 36, |
| | | ["tnt:tnt"] = 11, |
| | | ["tnt:tnt_burning"] = 11, |
| | | } |
| | | local default_radiation_resistance_per_group = { |
| | | concrete = 16, |
| | | tree = 3.4, |
| | | uranium_block = 500, |
| | | wood = 1.7, |
| | | } |
| | | local cache_radiation_resistance = {} |
| | | local function node_radiation_resistance(nodename) |
| | | local eff = cache_radiation_resistance[nodename] |
| | | if eff then return eff end |
| | | local def = minetest.registered_nodes[nodename] or {groups={}} |
| | | eff = def.radiation_resistance or default_radiation_resistance_per_node[nodename] |
| | | if not eff then |
| | | for g, v in pairs(def.groups) do |
| | | if v > 0 and default_radiation_resistance_per_group[g] then |
| | | eff = default_radiation_resistance_per_group[g] |
| | | break |
| | | end |
| | | end |
| | | end |
| | | if not eff then eff = 0 end |
| | | cache_radiation_resistance[nodename] = eff |
| | | return eff |
| | | end |
| | | |
| | | -- Radioactive nodes cause damage to nearby players. The damage |
| | | -- effect depends on the intrinsic strength of the radiation source, |
| | | -- the distance between the source and the player, and the shielding |
| | | -- effect of the intervening material. These determine a rate of damage; |
| | | -- total damage caused is the integral of this over time. |
| | | -- |
| | | -- In the absence of effective shielding, for a specific source the |
| | | -- damage rate varies realistically in inverse proportion to the square |
| | | -- of the distance. (Distance is measured to the player's abdomen, |
| | | -- not to the nominal player position which corresponds to the foot.) |
| | | -- However, if the player is inside a non-walkable (liquid or gaseous) |
| | | -- radioactive node, the nominal distance could go to zero, yielding |
| | | -- infinite damage. In that case, the player's body is displacing the |
| | | -- radioactive material, so the effective distance should remain non-zero. |
| | | -- We therefore apply a lower distance bound of sqrt(0.75) m, which is |
| | | -- the maximum distance one can get from the node centre within the node. |
| | | -- |
| | | -- A radioactive node is identified by being in the "radioactive" group, |
| | | -- and the group value signifies the strength of the radiation source. |
| | | -- The group value is the distance in millimetres from a node at which |
| | | -- an unshielded player will be damaged by 0.25 HP/s. Or, equivalently, |
| | | -- it is 2000 times the square root of the damage rate in HP/s that an |
| | | -- unshielded player 1 m away will take. |
| | | -- |
| | | -- Shielding is assessed by sampling every 0.25 m along the path |
| | | -- from the source to the player, ignoring the source node itself. |
| | | -- The summed shielding values from the sampled nodes yield a measure |
| | | -- of the total amount of shielding on the path. As in reality, |
| | | -- shielding causes exponential attenuation of radiation. However, the |
| | | -- effect is scaled down relative to real life. A metre of a node with |
| | | -- radiation resistance value R yields attenuation of sqrt(R)*0.1 nepers. |
| | | -- (In real life it would be about R*0.69 nepers, by the definition |
| | | -- of the radiation resistance values.) The sqrt part of this formula |
| | | -- scales down the differences between shielding types, reflecting the |
| | | -- game's simplification of making expensive materials such as gold |
| | | -- readily available in cubic metres. The multiplicative factor in the |
| | | -- formula scales down the difference between shielded and unshielded |
| | | -- safe distances, avoiding the latter becoming impractically large. |
| | | -- |
| | | -- Damage is processed at rates down to 0.25 HP/s, which in the absence of |
| | | -- shielding is attained at the distance specified by the "radioactive" |
| | | -- group value. Computed damage rates below 0.25 HP/s result in no |
| | | -- damage at all to the player. This gives the player an opportunity |
| | | -- to be safe, and limits the range at which source/player interactions |
| | | -- need to be considered. |
| | | local assumed_abdomen_offset = vector.new(0, 1, 0) |
| | | local assumed_abdomen_offset_length = vector.length(assumed_abdomen_offset) |
| | | local cache_scaled_shielding = {} |
| | | |
| | | local damage_enabled = minetest.setting_getbool("enable_damage") |
| | | |
| | | if damage_enabled then |
| | | minetest.register_abm({ |
| | | nodenames = {"group:radioactive"}, |
| | | interval = 1, |
| | | chance = 1, |
| | | action = function (pos, node) |
| | | local strength = minetest.registered_nodes[node.name].groups.radioactive |
| | | for _, o in ipairs(minetest.get_objects_inside_radius(pos, strength*0.001 + assumed_abdomen_offset_length)) do |
| | | if o:is_player() then |
| | | local rel = vector.subtract(vector.add(o:getpos(), assumed_abdomen_offset), pos) |
| | | local dist_sq = vector.length_square(rel) |
| | | local dist = math.sqrt(dist_sq) |
| | | local dirstep = dist == 0 and vector.new(0,0,0) or vector.divide(rel, dist*4) |
| | | local intpos = pos |
| | | local shielding = 0 |
| | | for intdist = 0.25, dist, 0.25 do |
| | | intpos = vector.add(intpos, dirstep) |
| | | local intnodepos = vector.round(intpos) |
| | | if not vector.equals(intnodepos, pos) then |
| | | local sname = minetest.get_node(intnodepos).name |
| | | local sval = cache_scaled_shielding[sname] |
| | | if not sval then |
| | | sval = math.sqrt(node_radiation_resistance(sname)) * -0.025 |
| | | cache_scaled_shielding[sname] = sval |
| | | end |
| | | shielding = shielding + sval |
| | | end |
| | | end |
| | | local dmg_rate = 0.25e-6 * strength*strength * math.exp(shielding) / math.max(0.75, dist_sq) |
| | | if dmg_rate >= 0.25 then |
| | | local dmg_int = math.floor(dmg_rate) |
| | | if math.random() < dmg_rate-dmg_int then |
| | | dmg_int = dmg_int + 1 |
| | | end |
| | | if dmg_int > 0 then |
| | | o:set_hp(math.max(o:get_hp() - dmg_int, 0)) |
| | | end |
| | | end |
| | | end |
| | | end |
| | | end, |
| | | }) |
| | | end |
| | | |
| | | -- radioactive materials that can result from destroying a reactor |
| | | |
| | | for _, state in ipairs({ "flowing", "source" }) do |
| | | minetest.register_node("technic:corium_"..state, { |
| | | description = S(state == "source" and "Corium Source" or "Flowing Corium"), |
| | | drawtype = (state == "source" and "liquid" or "flowingliquid"), |
| | | [state == "source" and "tiles" or "special_tiles"] = {{ |
| | | name = "technic_corium_"..state.."_animated.png", |
| | | animation = { |
| | | type = "vertical_frames", |
| | | aspect_w = 16, |
| | | aspect_h = 16, |
| | | length = 3.0, |
| | | }, |
| | | }}, |
| | | paramtype = "light", |
| | | paramtype2 = (state == "flowing" and "flowingliquid" or nil), |
| | | light_source = (state == "source" and 8 or 5), |
| | | walkable = false, |
| | | pointable = false, |
| | | diggable = false, |
| | | buildable_to = true, |
| | | drop = "", |
| | | drowning = 1, |
| | | liquidtype = state, |
| | | liquid_alternative_flowing = "technic:corium_flowing", |
| | | liquid_alternative_source = "technic:corium_source", |
| | | liquid_viscosity = LAVA_VISC, |
| | | liquid_renewable = false, |
| | | damage_per_second = 6, |
| | | post_effect_color = { a=192, r=80, g=160, b=80 }, |
| | | groups = { |
| | | liquid = 2, |
| | | hot = 3, |
| | | igniter = 1, |
| | | radioactive = (state == "source" and 32000 or 16000), |
| | | not_in_creative_inventory = (state == "flowing" and 1 or nil), |
| | | }, |
| | | }) |
| | | end |
| | | |
| | | if bucket and bucket.register_liquid then |
| | | bucket.register_liquid( |
| | | "technic:corium_source", |
| | | "technic:corium_flowing", |
| | | "technic:bucket_corium", |
| | | "technic_bucket_corium.png", |
| | | "Corium Bucket" |
| | | ) |
| | | end |
| | | |
| | | minetest.register_node("technic:chernobylite_block", { |
| | | description = S("Chernobylite Block"), |
| | | tiles = { "technic_chernobylite_block.png" }, |
| | | is_ground_content = true, |
| | | groups = { cracky=1, radioactive=5000, level=2 }, |
| | | sounds = default.node_sound_stone_defaults(), |
| | | light_source = 2, |
| | | |
| | | }) |
| | | |
| | | minetest.register_abm({ |
| | | nodenames = {"group:water"}, |
| | | neighbors = {"technic:corium_source"}, |
| | | interval = 1, |
| | | chance = 1, |
| | | action = function (pos, node) |
| | | minetest.remove_node(pos) |
| | | end, |
| | | }) |
| | | |
| | | minetest.register_abm({ |
| | | nodenames = {"technic:corium_flowing"}, |
| | | neighbors = {"group:water"}, |
| | | interval = 1, |
| | | chance = 1, |
| | | action = function (pos, node) |
| | | minetest.set_node(pos, {name="technic:chernobylite_block"}) |
| | | end, |
| | | }) |
| | | |
| | | local griefing = technic.config:get_bool("enable_corium_griefing") |
| | | |
| | | minetest.register_abm({ |
| | | nodenames = {"technic:corium_flowing"}, |
| | | interval = 5, |
| | | chance = (griefing and 10 or 1), |
| | | action = function (pos, node) |
| | | minetest.set_node(pos, {name="technic:chernobylite_block"}) |
| | | end, |
| | | }) |
| | | |
| | | if griefing then |
| | | minetest.register_abm({ |
| | | nodenames = { "technic:corium_source", "technic:corium_flowing" }, |
| | | interval = 4, |
| | | chance = 4, |
| | | action = function (pos, node) |
| | | for _, offset in ipairs({ |
| | | vector.new(1,0,0), |
| | | vector.new(-1,0,0), |
| | | vector.new(0,0,1), |
| | | vector.new(0,0,-1), |
| | | vector.new(0,-1,0), |
| | | }) do |
| | | if math.random(8) == 1 then |
| | | minetest.dig_node(vector.add(pos, offset)) |
| | | end |
| | | end |
| | | end, |
| | | }) |
| | | end |