diff options
Diffstat (limited to 'technic/machines/HV/nuclear_reactor.lua')
| -rw-r--r-- | technic/machines/HV/nuclear_reactor.lua | 723 |
1 files changed, 723 insertions, 0 deletions
diff --git a/technic/machines/HV/nuclear_reactor.lua b/technic/machines/HV/nuclear_reactor.lua new file mode 100644 index 0000000..3aa1ba8 --- /dev/null +++ b/technic/machines/HV/nuclear_reactor.lua @@ -0,0 +1,723 @@ +-- 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! + +local burn_ticks = 7 * 24 * 60 * 60 -- (seconds). +local power_supply = 100000 -- EUs +local fuel_type = "technic:uranium_fuel" -- The reactor burns this stuff + +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 + +-- FIXME: recipe must 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'}, + } +}) + +local generator_formspec = + "invsize[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;]".. + "listring[]" + +-- "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 reactor_siren = {} +local function siren_set_state(pos, newstate) + 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"} + reactor_siren[hpos] = siren + end + if newstate == "danger" and siren.state ~= "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 + 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}) + 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 + end + end) + elseif newstate == "off" and siren.state ~= "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") +end +local function siren_clear(pos, meta) + if meta:get_int("siren") ~= 0 then + siren_set_state(pos, "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) + local vm = VoxelManip() + local pos1 = vector.subtract(pos, 3) + local pos2 = vector.add(pos, 3) + local MinEdge, MaxEdge = vm:read_from_map(pos1, pos2) + local data = vm:get_data() + 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_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 + + for z = pos1.z, pos2.z do + for y = pos1.y, pos2.y do + for x = pos1.x, pos2.x do + local cid = data[area:index(x, y, z)] + if x == pos1.x or x == pos2.x or + 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 + 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 + 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 + if cid == c_water_source or cid == c_water_flowing then + waterlayer = waterlayer + 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) +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"}) +end + +minetest.register_abm({ + nodenames = {"technic:hv_nuclear_reactor_core_active"}, + interval = 1, + chance = 1, + action = function (pos, node) + local meta = minetest.get_meta(pos) + local badness = reactor_structure_badness(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) + siren_clear(pos, meta) + end + else + siren_danger(pos, meta) + accum_badness = accum_badness + badness + if accum_badness >= 100 then + meltdown_reactor(pos) + else + meta:set_int("structure_accumulated_badness", accum_badness) + end + end + end, +}) + +local run = function(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 + 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)) + technic.swap_node(pos, "technic:hv_nuclear_reactor_core") + meta:set_int("structure_accumulated_badness", 0) + siren_clear(pos, meta) + elseif burn_time > 0 then + 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_int("HV_EU_supply", power_supply) + 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}, + legacy_facedir_simple = true, + sounds = default.node_sound_wood_defaults(), + drawtype="nodebox", + paramtype = "light", + stack_max = 1, + node_box = { + type = "fixed", + fixed = nodebox + }, + 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) + local inv = meta:get_inventory() + inv:set_size("src", 6) + end, + can_dig = technic.machine_can_dig, + on_destruct = function(pos) siren_set_state(pos, "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, +}) + +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}, + legacy_facedir_simple = true, + sounds = default.node_sound_wood_defaults(), + drop="technic:hv_nuclear_reactor_core", + drawtype="nodebox", + light_source = 15, + paramtype = "light", + node_box = { + type = "fixed", + fixed = nodebox + }, + can_dig = technic.machine_can_dig, + after_dig_node = meltdown_reactor, + on_destruct = function(pos) siren_set_state(pos, "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) + 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 + meta:set_int("HV_EU_supply", 0) + meta:set_int("burn_time", 0) + technic.swap_node(pos, "technic:hv_nuclear_reactor_core") + meta:set_int("structure_accumulated_badness", 0) + 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:lead_block"] = 80, + ["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 +local corium_griefing = 1 +if (not technic.config:get_bool("enable_corium_griefing")) then + corium_griefing = 0 +end + +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 = corium_griefing, + 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, +}) + +if (corium_griefing == 1) then + minetest.register_abm({ + nodenames = {"technic:corium_flowing"}, + interval = 5, + chance = 10, + action = function (pos, node) + minetest.set_node(pos, {name="technic:chernobylite_block"}) + end, + }) + 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 |