commit | author | age
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-- SWITCHING STATION |
K |
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-- The switching station is the center of all power distribution on an electric network. |
7cfb38
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-- |
KZ |
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-- The station collects power from sources (PR), distributes it to sinks (RE), |
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-- and uses the excess/shortfall to charge and discharge batteries (BA). |
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-- |
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-- For now, all supply and demand values are expressed in kW. |
ee5c6c
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-- |
K |
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-- It works like this: |
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-- All PR,BA,RE nodes are indexed and tagged with the switching station. |
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-- The tagging is to allow more stations to be built without allowing a cheat |
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-- with duplicating power. |
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-- All the RE nodes are queried for their current EU demand. Those which are off |
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-- would require no or a small standby EU demand, while those which are on would |
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-- require more. |
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-- If the total demand is less than the available power they are all updated with the |
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-- demand number. |
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-- If any surplus exists from the PR nodes the batteries will be charged evenly with this. |
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-- If the total demand requires draw on the batteries they will be discharged evenly. |
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-- |
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-- If the total demand is more than the available power all RE nodes will be shut down. |
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-- We have a brown-out situation. |
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-- |
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-- Hence all the power distribution logic resides in this single node. |
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-- |
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-- Nodes connected to the network will have one or more of these parameters as meta data: |
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-- <LV|MV|HV>_EU_supply : Exists for PR and BA node types. This is the EU value supplied by the node. Output |
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-- <LV|MV|HV>_EU_demand : Exists for RE and BA node types. This is the EU value the node requires to run. Output |
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-- <LV|MV|HV>_EU_input : Exists for RE and BA node types. This is the actual EU value the network can give the node. Input |
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-- |
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-- The reason the LV|MV|HV type is prepended toe meta data is because some machine could require several supplies to work. |
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-- This way the supplies are separated per network. |
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technic.networks = {} |
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technic.cables = {} |
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|
S |
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local S = technic.getter |
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|
ee0765
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minetest.register_craft({ |
S |
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output = "technic:switching_station", |
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recipe = { |
83c649
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{"", "technic:lv_transformer", ""}, |
S |
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{"default:copper_ingot", "technic:machine_casing", "default:copper_ingot"}, |
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{"technic:lv_cable", "technic:lv_cable", "technic:lv_cable"} |
ee0765
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} |
S |
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}) |
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|
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minetest.register_node("technic:switching_station",{ |
be2f30
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description = S("Switching Station"), |
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tiles = {"technic_water_mill_top_active.png", "technic_water_mill_top_active.png", |
S |
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"technic_water_mill_top_active.png", "technic_water_mill_top_active.png", |
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"technic_water_mill_top_active.png", "technic_water_mill_top_active.png"}, |
83c649
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groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2, technic_all_tiers=1}, |
S |
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connect_sides = {"bottom"}, |
ee0765
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sounds = default.node_sound_wood_defaults(), |
S |
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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", S("Switching Station")) |
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meta:set_string("active", 1) |
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end, |
088eea
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after_dig_node = function(pos) |
CK |
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minetest.forceload_free_block(pos) |
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pos.y = pos.y - 1 |
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minetest.forceload_free_block(pos) |
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end, |
ee0765
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}) |
ee5c6c
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|
K |
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-------------------------------------------------- |
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-- Functions to traverse the electrical network |
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-------------------------------------------------- |
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-- Add a wire node to the LV/MV/HV network |
d3f40e
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local add_new_cable_node = function(nodes, pos, network_id) |
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technic.cables[minetest.hash_node_position(pos)] = network_id |
ee0765
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-- Ignore if the node has already been added |
S |
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for i = 1, #nodes do |
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if pos.x == nodes[i].x and |
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pos.y == nodes[i].y and |
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pos.z == nodes[i].z then |
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return false |
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end |
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end |
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table.insert(nodes, {x=pos.x, y=pos.y, z=pos.z, visited=1}) |
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return true |
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end |
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K |
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-- Generic function to add found connected nodes to the right classification array |
d3f40e
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local check_node_subp = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, pos, machines, tier, sw_pos, from_below, network_id) |
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technic.get_or_load_node(pos) |
ee0765
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local meta = minetest.get_meta(pos) |
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local name = minetest.get_node(pos).name |
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if technic.is_tier_cable(name, tier) then |
d3f40e
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add_new_cable_node(all_nodes, pos,network_id) |
ee0765
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elseif machines[name] then |
S |
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--dprint(name.." is a "..machines[name]) |
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meta:set_string(tier.."_network",minetest.pos_to_string(sw_pos)) |
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if machines[name] == technic.producer then |
d3f40e
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add_new_cable_node(PR_nodes, pos, network_id) |
ee0765
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elseif machines[name] == technic.receiver then |
d3f40e
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add_new_cable_node(RE_nodes, pos, network_id) |
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elseif machines[name] == technic.producer_receiver then |
d3f40e
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add_new_cable_node(PR_nodes, pos, network_id) |
CK |
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add_new_cable_node(RE_nodes, pos, network_id) |
563a4c
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elseif machines[name] == "SPECIAL" and |
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(pos.x ~= sw_pos.x or pos.y ~= sw_pos.y or pos.z ~= sw_pos.z) and |
E |
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from_below then |
563a4c
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-- Another switching station -> disable it |
d3f40e
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add_new_cable_node(SP_nodes, pos, network_id) |
563a4c
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meta:set_int("active", 0) |
ee0765
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elseif machines[name] == technic.battery then |
d3f40e
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add_new_cable_node(BA_nodes, pos, network_id) |
ee0765
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end |
S |
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meta:set_int(tier.."_EU_timeout", 2) -- Touch node |
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end |
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end |
ee5c6c
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|
K |
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-- Traverse a network given a list of machines and a cable type name |
d3f40e
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local traverse_network = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, i, machines, tier, sw_pos, network_id) |
ee0765
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local pos = all_nodes[i] |
S |
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local positions = { |
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{x=pos.x+1, y=pos.y, z=pos.z}, |
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{x=pos.x-1, y=pos.y, z=pos.z}, |
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{x=pos.x, y=pos.y+1, z=pos.z}, |
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{x=pos.x, y=pos.y-1, z=pos.z}, |
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{x=pos.x, y=pos.y, z=pos.z+1}, |
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{x=pos.x, y=pos.y, z=pos.z-1}} |
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--print("ON") |
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for i, cur_pos in pairs(positions) do |
d3f40e
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check_node_subp(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, cur_pos, machines, tier, sw_pos, i == 3, network_id) |
ee0765
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end |
S |
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end |
ee5c6c
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|
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local touch_nodes = function(list, tier) |
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for _, pos in ipairs(list) do |
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local meta = minetest.get_meta(pos) |
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meta:set_int(tier.."_EU_timeout", 2) -- Touch node |
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end |
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end |
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|
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local get_network = function(sw_pos, pos1, tier) |
12d29c
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local cached = technic.networks[minetest.hash_node_position(pos1)] |
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if cached and cached.tier == tier then |
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touch_nodes(cached.PR_nodes, tier) |
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touch_nodes(cached.BA_nodes, tier) |
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touch_nodes(cached.RE_nodes, tier) |
563a4c
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for _, pos in ipairs(cached.SP_nodes) do |
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local meta = minetest.get_meta(pos) |
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meta:set_int("active", 0) |
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meta:set_string("active_pos", minetest.serialize(sw_pos)) |
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end |
f4ac2b
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return cached.PR_nodes, cached.BA_nodes, cached.RE_nodes |
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end |
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local i = 1 |
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local PR_nodes = {} |
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local BA_nodes = {} |
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local RE_nodes = {} |
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local SP_nodes = {} |
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local all_nodes = {pos1} |
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repeat |
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traverse_network(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, |
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i, technic.machines[tier], tier, sw_pos, minetest.hash_node_position(pos1)) |
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i = i + 1 |
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until all_nodes[i] == nil |
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technic.networks[minetest.hash_node_position(pos1)] = {tier = tier, PR_nodes = PR_nodes, |
088eea
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RE_nodes = RE_nodes, BA_nodes = BA_nodes, SP_nodes = SP_nodes, all_nodes = all_nodes} |
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return PR_nodes, BA_nodes, RE_nodes |
N |
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end |
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|
ee0765
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----------------------------------------------- |
S |
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-- The action code for the switching station -- |
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----------------------------------------------- |
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minetest.register_abm({ |
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nodenames = {"technic:switching_station"}, |
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label = "Switching Station", -- allows the mtt profiler to profile this abm individually |
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interval = 1, |
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chance = 1, |
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action = function(pos, node, active_object_count, active_object_count_wider) |
ee0765
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local meta = minetest.get_meta(pos) |
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local meta1 = nil |
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local pos1 = {} |
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local PR_EU = 0 -- EUs from PR nodes |
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local BA_PR_EU = 0 -- EUs from BA nodes (discharching) |
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local BA_RE_EU = 0 -- EUs to BA nodes (charging) |
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local RE_EU = 0 -- EUs to RE nodes |
ee5c6c
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|
ee0765
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local tier = "" |
f4ac2b
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local PR_nodes |
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local BA_nodes |
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local RE_nodes |
be2f30
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local machine_name = S("Switching Station") |
563a4c
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|
ee0765
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-- Which kind of network are we on: |
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pos1 = {x=pos.x, y=pos.y-1, z=pos.z} |
ee5c6c
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|
088eea
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--Disable if necessary |
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if meta:get_int("active") ~= 1 then |
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minetest.forceload_free_block(pos) |
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minetest.forceload_free_block(pos1) |
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meta:set_string("infotext",S("%s Already Present"):format(machine_name)) |
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return |
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end |
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|
ee0765
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local name = minetest.get_node(pos1).name |
S |
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local tier = technic.get_cable_tier(name) |
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if tier then |
088eea
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-- Forceload switching station |
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minetest.forceload_block(pos) |
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minetest.forceload_block(pos1) |
563a4c
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PR_nodes, BA_nodes, RE_nodes = get_network(pos, pos1, tier) |
ee0765
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else |
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--dprint("Not connected to a network") |
be2f30
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meta:set_string("infotext", S("%s Has No Network"):format(machine_name)) |
088eea
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minetest.forceload_free_block(pos) |
CK |
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minetest.forceload_free_block(pos1) |
ee0765
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return |
S |
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end |
563a4c
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|
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-- Run all the nodes |
10307f
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local function run_nodes(list, run_stage) |
563a4c
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for _, pos2 in ipairs(list) do |
c38da0
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technic.get_or_load_node(pos2) |
563a4c
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local node2 = minetest.get_node(pos2) |
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local nodedef |
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if node2 and node2.name then |
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nodedef = minetest.registered_nodes[node2.name] |
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end |
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if nodedef and nodedef.technic_run then |
10307f
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nodedef.technic_run(pos2, node2, run_stage) |
563a4c
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end |
N |
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end |
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end |
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|
10307f
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run_nodes(PR_nodes, technic.producer) |
M'P |
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run_nodes(RE_nodes, technic.receiver) |
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run_nodes(BA_nodes, technic.battery) |
ee5c6c
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|
ee0765
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-- Strings for the meta data |
S |
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local eu_demand_str = tier.."_EU_demand" |
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local eu_input_str = tier.."_EU_input" |
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local eu_supply_str = tier.."_EU_supply" |
ee5c6c
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|
7cfb38
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-- Distribute charge equally across multiple batteries. |
KZ |
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local charge_total = 0 |
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local battery_count = 0 |
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|
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for n, pos1 in pairs(BA_nodes) do |
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meta1 = minetest.get_meta(pos1) |
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local charge = meta1:get_int("internal_EU_charge") |
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if (meta1:get_int(eu_demand_str) ~= 0) then |
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charge_total = charge_total + charge |
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battery_count = battery_count + 1 |
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end |
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end |
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local charge_distributed = math.floor(charge_total / battery_count) |
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|
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for n, pos1 in pairs(BA_nodes) do |
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meta1 = minetest.get_meta(pos1) |
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if (meta1:get_int(eu_demand_str) ~= 0) then |
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meta1:set_int("internal_EU_charge", charge_distributed) |
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end |
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end |
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|
ee0765
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-- Get all the power from the PR nodes |
S |
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local PR_eu_supply = 0 -- Total power |
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for _, pos1 in pairs(PR_nodes) do |
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meta1 = minetest.get_meta(pos1) |
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PR_eu_supply = PR_eu_supply + meta1:get_int(eu_supply_str) |
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end |
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--dprint("Total PR supply:"..PR_eu_supply) |
ee5c6c
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|
ee0765
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-- Get all the demand from the RE nodes |
S |
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local RE_eu_demand = 0 |
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for _, pos1 in pairs(RE_nodes) do |
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meta1 = minetest.get_meta(pos1) |
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RE_eu_demand = RE_eu_demand + meta1:get_int(eu_demand_str) |
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end |
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--dprint("Total RE demand:"..RE_eu_demand) |
ee5c6c
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|
ee0765
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-- Get all the power from the BA nodes |
S |
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local BA_eu_supply = 0 |
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for _, pos1 in pairs(BA_nodes) do |
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meta1 = minetest.get_meta(pos1) |
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BA_eu_supply = BA_eu_supply + meta1:get_int(eu_supply_str) |
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end |
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--dprint("Total BA supply:"..BA_eu_supply) |
ee5c6c
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|
ee0765
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-- Get all the demand from the BA nodes |
S |
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local BA_eu_demand = 0 |
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for _, pos1 in pairs(BA_nodes) do |
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meta1 = minetest.get_meta(pos1) |
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BA_eu_demand = BA_eu_demand + meta1:get_int(eu_demand_str) |
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end |
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--dprint("Total BA demand:"..BA_eu_demand) |
ee5c6c
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|
ee0765
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meta:set_string("infotext", |
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S("@1. Supply: @2 Demand: @3", |
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machine_name, technic.pretty_num(PR_eu_supply), technic.pretty_num(RE_eu_demand))) |
ee5c6c
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|
088eea
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-- Data that will be used by the power monitor |
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meta:set_int("supply",PR_eu_supply) |
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meta:set_int("demand",RE_eu_demand) |
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|
ee0765
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-- If the PR supply is enough for the RE demand supply them all |
S |
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if PR_eu_supply >= RE_eu_demand then |
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--dprint("PR_eu_supply"..PR_eu_supply.." >= RE_eu_demand"..RE_eu_demand) |
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for _, pos1 in pairs(RE_nodes) do |
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meta1 = minetest.get_meta(pos1) |
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local eu_demand = meta1:get_int(eu_demand_str) |
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meta1:set_int(eu_input_str, eu_demand) |
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end |
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-- We have a surplus, so distribute the rest equally to the BA nodes |
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-- Let's calculate the factor of the demand |
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PR_eu_supply = PR_eu_supply - RE_eu_demand |
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local charge_factor = 0 -- Assume all batteries fully charged |
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if BA_eu_demand > 0 then |
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charge_factor = PR_eu_supply / BA_eu_demand |
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end |
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for n, pos1 in pairs(BA_nodes) do |
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meta1 = minetest.get_meta(pos1) |
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local eu_demand = meta1:get_int(eu_demand_str) |
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meta1:set_int(eu_input_str, math.floor(eu_demand * charge_factor)) |
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--dprint("Charging battery:"..math.floor(eu_demand*charge_factor)) |
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end |
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return |
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end |
ee5c6c
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|
ee0765
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-- If the PR supply is not enough for the RE demand we will discharge the batteries too |
S |
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if PR_eu_supply + BA_eu_supply >= RE_eu_demand then |
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--dprint("PR_eu_supply "..PR_eu_supply.."+BA_eu_supply "..BA_eu_supply.." >= RE_eu_demand"..RE_eu_demand) |
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for _, pos1 in pairs(RE_nodes) do |
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meta1 = minetest.get_meta(pos1) |
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local eu_demand = meta1:get_int(eu_demand_str) |
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meta1:set_int(eu_input_str, eu_demand) |
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end |
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-- We have a deficit, so distribute to the BA nodes |
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-- Let's calculate the factor of the supply |
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local charge_factor = 0 -- Assume all batteries depleted |
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if BA_eu_supply > 0 then |
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charge_factor = (PR_eu_supply - RE_eu_demand) / BA_eu_supply |
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end |
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for n,pos1 in pairs(BA_nodes) do |
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meta1 = minetest.get_meta(pos1) |
ee5c6c
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local eu_supply = meta1:get_int(eu_supply_str) |
ee0765
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meta1:set_int(eu_input_str, math.floor(eu_supply * charge_factor)) |
S |
350 |
--dprint("Discharging battery:"..math.floor(eu_supply*charge_factor)) |
|
351 |
end |
|
352 |
return |
|
353 |
end |
ee5c6c
|
354 |
|
ee0765
|
355 |
-- If the PR+BA supply is not enough for the RE demand: Power only the batteries |
S |
356 |
local charge_factor = 0 -- Assume all batteries fully charged |
|
357 |
if BA_eu_demand > 0 then |
|
358 |
charge_factor = PR_eu_supply / BA_eu_demand |
|
359 |
end |
|
360 |
for n, pos1 in pairs(BA_nodes) do |
|
361 |
meta1 = minetest.get_meta(pos1) |
|
362 |
local eu_demand = meta1:get_int(eu_demand_str) |
|
363 |
meta1:set_int(eu_input_str, math.floor(eu_demand * charge_factor)) |
|
364 |
end |
|
365 |
for n, pos1 in pairs(RE_nodes) do |
|
366 |
meta1 = minetest.get_meta(pos1) |
|
367 |
meta1:set_int(eu_input_str, 0) |
|
368 |
end |
088eea
|
369 |
|
ee5c6c
|
370 |
end, |
K |
371 |
}) |
ee0765
|
372 |
|
563a4c
|
373 |
-- Timeout ABM |
N |
374 |
-- Timeout for a node in case it was disconnected from the network |
|
375 |
-- A node must be touched by the station continuously in order to function |
|
376 |
local function switching_station_timeout_count(pos, tier) |
|
377 |
local meta = minetest.get_meta(pos) |
|
378 |
local timeout = meta:get_int(tier.."_EU_timeout") |
|
379 |
if timeout <= 0 then |
4ac36e
|
380 |
meta:set_int(tier.."_EU_input", 0) -- Not needed anymore <-- actually, it is for supply converter |
563a4c
|
381 |
return true |
N |
382 |
else |
|
383 |
meta:set_int(tier.."_EU_timeout", timeout - 1) |
|
384 |
return false |
|
385 |
end |
|
386 |
end |
|
387 |
minetest.register_abm({ |
|
388 |
nodenames = {"group:technic_machine"}, |
|
389 |
interval = 1, |
|
390 |
chance = 1, |
|
391 |
action = function(pos, node, active_object_count, active_object_count_wider) |
088eea
|
392 |
local meta = minetest.get_meta(pos) |
563a4c
|
393 |
for tier, machines in pairs(technic.machines) do |
N |
394 |
if machines[node.name] and switching_station_timeout_count(pos, tier) then |
|
395 |
local nodedef = minetest.registered_nodes[node.name] |
|
396 |
if nodedef and nodedef.technic_disabled_machine_name then |
|
397 |
node.name = nodedef.technic_disabled_machine_name |
|
398 |
minetest.swap_node(pos, node) |
1c617f
|
399 |
elseif nodedef and nodedef.technic_on_disable then |
N |
400 |
nodedef.technic_on_disable(pos, node) |
563a4c
|
401 |
end |
N |
402 |
if nodedef then |
|
403 |
local meta = minetest.get_meta(pos) |
|
404 |
meta:set_string("infotext", S("%s Has No Network"):format(nodedef.description)) |
|
405 |
end |
|
406 |
end |
|
407 |
end |
|
408 |
end, |
|
409 |
}) |
|
410 |
|
088eea
|
411 |
--Re-enable disabled switching station if necessary, similar to the timeout above |
CK |
412 |
minetest.register_abm({ |
|
413 |
nodenames = {"technic:switching_station"}, |
|
414 |
interval = 1, |
|
415 |
chance = 1, |
|
416 |
action = function(pos, node, active_object_count, active_object_count_wider) |
|
417 |
local meta = minetest.get_meta(pos) |
|
418 |
local pos1 = {x=pos.x,y=pos.y-1,z=pos.z} |
|
419 |
local tier = technic.get_cable_tier(minetest.get_node(pos1).name) |
|
420 |
if not tier then return end |
|
421 |
if switching_station_timeout_count(pos, tier) then |
|
422 |
local meta = minetest.get_meta(pos) |
|
423 |
meta:set_int("active",1) |
|
424 |
end |
|
425 |
end, |
|
426 |
}) |
|
427 |
|
ee0765
|
428 |
for tier, machines in pairs(technic.machines) do |
S |
429 |
-- SPECIAL will not be traversed |
|
430 |
technic.register_machine(tier, "technic:switching_station", "SPECIAL") |
|
431 |
end |
|
432 |
|