--[[
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The enriched uranium rod driven EU generator.
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A very large and advanced machine providing vast amounts of power.
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Very efficient but also expensive to run as it needs uranium.
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Provides 10000 HV EUs for one week (only counted when loaded).
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The nuclear reactor core requires a casing of water and a protective
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shield to work. This is checked now and then and if the casing is not
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intact the reactor will melt down!
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--]]
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local burn_ticks = 7 * 24 * 60 * 60 -- Seconds
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local power_supply = 100000 -- EUs
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local fuel_type = "technic:uranium_fuel" -- The reactor burns this
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local S = technic.getter
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local reactor_desc = S("@1 Nuclear Reactor Core", S("HV"))
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local cable_entry = "^technic_cable_connection_overlay.png"
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-- FIXME: Recipe should make more sense like a rod recepticle, steam chamber, HV generator?
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minetest.register_craft({
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output = 'technic:hv_nuclear_reactor_core',
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recipe = {
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{'technic:carbon_plate', 'default:obsidian_glass', 'technic:carbon_plate'},
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{'technic:composite_plate', 'technic:machine_casing', 'technic:composite_plate'},
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{'technic:stainless_steel_ingot', 'technic:hv_cable', 'technic:stainless_steel_ingot'},
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}
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})
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local reactor_formspec =
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"invsize[8,9;]"..
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"label[0,0;"..S("Nuclear Reactor Rod Compartment").."]"..
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"list[current_name;src;2,1;3,2;]"..
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"list[current_player;main;0,5;8,4;]"..
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"listring[]"
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local SS_OFF = 0
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local SS_DANGER = 1
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local SS_CLEAR = 2
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local reactor_siren = {}
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local function siren_set_state(pos, state)
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local hpos = minetest.hash_node_position(pos)
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local siren = reactor_siren[hpos]
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if not siren then
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if state == SS_OFF then return end
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siren = {state=SS_OFF}
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reactor_siren[hpos] = siren
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end
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if state == SS_DANGER and siren.state ~= SS_DANGER then
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if siren.handle then minetest.sound_stop(siren.handle) end
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siren.handle = minetest.sound_play("technic_hv_nuclear_reactor_siren_danger_loop",
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{pos=pos, gain=1.5, loop=true, max_hear_distance=48})
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siren.state = SS_DANGER
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elseif state == SS_CLEAR then
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if siren.handle then minetest.sound_stop(siren.handle) end
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local clear_handle = minetest.sound_play("technic_hv_nuclear_reactor_siren_clear",
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{pos=pos, gain=1.5, loop=false, max_hear_distance=48})
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siren.handle = clear_handle
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siren.state = SS_CLEAR
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minetest.after(10, function()
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if siren.handle ~= clear_handle then return end
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minetest.sound_stop(clear_handle)
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if reactor_siren[hpos] == siren then
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reactor_siren[hpos] = nil
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end
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end)
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elseif state == SS_OFF and siren.state ~= SS_OFF then
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if siren.handle then minetest.sound_stop(siren.handle) end
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reactor_siren[hpos] = nil
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end
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end
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local function siren_danger(pos, meta)
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meta:set_int("siren", 1)
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siren_set_state(pos, SS_DANGER)
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end
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local function siren_clear(pos, meta)
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if meta:get_int("siren") ~= 0 then
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siren_set_state(pos, SS_CLEAR)
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meta:set_int("siren", 0)
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end
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end
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--[[
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The standard reactor structure consists of a 9x9x9 cube. A cross
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section through the middle:
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CCCC CCCC
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CBBB BBBC
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CBLL LLBC
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CBLWWWLBC
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CBLW#WLBC
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CBLW|WLBC
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CBLL|LLBC
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CBBB|BBBC
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CCCC|CCCC
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C = Concrete, B = Blast-resistant concrete, L = Lead,
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W = water node, # = reactor core, | = HV cable
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The man-hole is optional (but necessary for refueling).
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For the reactor to operate and not melt down, it insists on the inner
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7x7x7 portion (from the core out to the blast-resistant concrete)
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being intact. Intactness only depends on the number of nodes of the
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right type in each layer. The water layer must have water in all but
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at most one node; the steel and blast-resistant concrete layers must
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have the right material in all but at most two nodes. The permitted
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gaps are meant for the cable and man-hole, but can actually be anywhere
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and contain anything. For the reactor to be useful, a cable must
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connect to the core, but it can go in any direction.
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The outer concrete layer of the standard structure is not required
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for the reactor to operate. It is noted here because it used to
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be mandatory, and for historical reasons (that it predates the
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implementation of radiation) it needs to continue being adequate
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shielding of legacy reactors. If it ever ceases to be adequate
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shielding for new reactors, legacy ones should be grandfathered.
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For legacy reasons, if the reactor has a stainless steel layer instead
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of a lead layer it will be converted to a lead layer.
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--]]
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local function reactor_structure_badness(pos)
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local vm = VoxelManip()
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local pos1 = vector.subtract(pos, 3)
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local pos2 = vector.add(pos, 3)
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local MinEdge, MaxEdge = vm:read_from_map(pos1, pos2)
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local data = vm:get_data()
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local area = VoxelArea:new({MinEdge=MinEdge, MaxEdge=MaxEdge})
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local c_blast_concrete = minetest.get_content_id("technic:blast_resistant_concrete")
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local c_lead = minetest.get_content_id("technic:lead_block")
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local c_steel = minetest.get_content_id("technic:stainless_steel_block")
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local c_water_source = minetest.get_content_id("default:water_source")
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local c_water_flowing = minetest.get_content_id("default:water_flowing")
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local blast_layer, steel_layer, lead_layer, water_layer = 0, 0, 0, 0
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for z = pos1.z, pos2.z do
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for y = pos1.y, pos2.y do
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for x = pos1.x, pos2.x do
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local cid = data[area:index(x, y, z)]
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if x == pos1.x or x == pos2.x or
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y == pos1.y or y == pos2.y or
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z == pos1.z or z == pos2.z then
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if cid == c_blast_concrete then
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blast_layer = blast_layer + 1
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end
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elseif x == pos1.x+1 or x == pos2.x-1 or
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y == pos1.y+1 or y == pos2.y-1 or
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z == pos1.z+1 or z == pos2.z-1 then
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if cid == c_lead then
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lead_layer = lead_layer + 1
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elseif cid == c_steel then
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steel_layer = steel_layer + 1
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end
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elseif x == pos1.x+2 or x == pos2.x-2 or
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y == pos1.y+2 or y == pos2.y-2 or
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z == pos1.z+2 or z == pos2.z-2 then
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if cid == c_water_source or cid == c_water_flowing then
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water_layer = water_layer + 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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if steel_layer >= 96 then
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for z = pos1.z+1, pos2.z-1 do
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for y = pos1.y+1, pos2.y-1 do
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for x = pos1.x+1, pos2.x-1 do
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local vi = area:index(x, y, z)
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if x == pos1.x+1 or x == pos2.x-1 or
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y == pos1.y+1 or y == pos2.y-1 or
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z == pos1.z+1 or z == pos2.z-1 then
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if data[vi] == c_steel then
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data[vi] = c_lead
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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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vm:set_data(data)
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vm:write_to_map()
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lead_layer = steel_layer
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end
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if water_layer > 25 then water_layer = 25 end
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if lead_layer > 96 then lead_layer = 96 end
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if blast_layer > 216 then blast_layer = 216 end
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return (25 - water_layer) + (96 - lead_layer) + (216 - blast_layer)
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end
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local function melt_down_reactor(pos)
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minetest.log("action", "A reactor melted down at "..minetest.pos_to_string(pos))
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minetest.set_node(pos, {name="technic:corium_source"})
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end
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minetest.register_abm({
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label = "Machines: reactor melt-down check",
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nodenames = {"technic:hv_nuclear_reactor_core_active"},
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interval = 4,
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chance = 1,
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action = function (pos, node)
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local meta = minetest.get_meta(pos)
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local badness = reactor_structure_badness(pos)
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local accum_badness = meta:get_int("structure_accumulated_badness")
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if badness == 0 then
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if accum_badness ~= 0 then
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meta:set_int("structure_accumulated_badness", accum_badness - 4)
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siren_clear(pos, meta)
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end
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else
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siren_danger(pos, meta)
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accum_badness = accum_badness + badness
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if accum_badness >= 25 then
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melt_down_reactor(pos)
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else
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meta:set_int("structure_accumulated_badness", accum_badness)
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end
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end
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end,
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})
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local function run(pos, node)
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local meta = minetest.get_meta(pos)
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local burn_time = meta:get_int("burn_time") or 0
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if burn_time >= burn_ticks or burn_time == 0 then
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local inv = meta:get_inventory()
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if not inv:is_empty("src") then
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local src_list = inv:get_list("src")
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local correct_fuel_count = 0
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for _, src_stack in pairs(src_list) do
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if src_stack and src_stack:get_name() == fuel_type then
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correct_fuel_count = correct_fuel_count + 1
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end
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end
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-- Check that the reactor is complete and has the correct fuel
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if correct_fuel_count == 6 and
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reactor_structure_badness(pos) == 0 then
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meta:set_int("burn_time", 1)
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technic.swap_node(pos, "technic:hv_nuclear_reactor_core_active")
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meta:set_int("HV_EU_supply", power_supply)
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for idx, src_stack in pairs(src_list) do
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src_stack:take_item()
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inv:set_stack("src", idx, src_stack)
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end
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return
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end
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end
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meta:set_int("HV_EU_supply", 0)
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meta:set_int("burn_time", 0)
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meta:set_string("infotext", S("%s Idle"):format(reactor_desc))
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technic.swap_node(pos, "technic:hv_nuclear_reactor_core")
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meta:set_int("structure_accumulated_badness", 0)
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siren_clear(pos, meta)
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elseif burn_time > 0 then
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burn_time = burn_time + 1
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meta:set_int("burn_time", burn_time)
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local percent = math.floor(burn_time / burn_ticks * 100)
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meta:set_string("infotext", reactor_desc.." ("..percent.."%)")
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meta:set_int("HV_EU_supply", power_supply)
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end
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end
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minetest.register_node("technic:hv_nuclear_reactor_core", {
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description = reactor_desc,
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tiles = {
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"technic_hv_nuclear_reactor_core.png",
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"technic_hv_nuclear_reactor_core.png"..cable_entry
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},
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drawtype = "mesh",
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mesh = "technic_reactor.obj",
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groups = {cracky=1, technic_machine=1, technic_hv=1},
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legacy_facedir_simple = true,
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sounds = default.node_sound_wood_defaults(),
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paramtype = "light",
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paramtype2 = "facedir",
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stack_max = 1,
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on_construct = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_string("infotext", reactor_desc)
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meta:set_string("formspec", reactor_formspec)
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local inv = meta:get_inventory()
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inv:set_size("src", 6)
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end,
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can_dig = technic.machine_can_dig,
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on_destruct = function(pos) siren_set_state(pos, SS_OFF) end,
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allow_metadata_inventory_put = technic.machine_inventory_put,
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allow_metadata_inventory_take = technic.machine_inventory_take,
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allow_metadata_inventory_move = technic.machine_inventory_move,
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technic_run = run,
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})
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minetest.register_node("technic:hv_nuclear_reactor_core_active", {
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tiles = {
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"technic_hv_nuclear_reactor_core.png",
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"technic_hv_nuclear_reactor_core.png"..cable_entry
|
},
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drawtype = "mesh",
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mesh = "technic_reactor.obj",
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groups = {cracky=1, technic_machine=1, technic_hv=1,
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radioactive=4, not_in_creative_inventory=1},
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legacy_facedir_simple = true,
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sounds = default.node_sound_wood_defaults(),
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drop = "technic:hv_nuclear_reactor_core",
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light_source = 14,
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paramtype = "light",
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paramtype2 = "facedir",
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can_dig = technic.machine_can_dig,
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after_dig_node = melt_down_reactor,
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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,
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allow_metadata_inventory_move = technic.machine_inventory_move,
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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)
|
