-- The supply converter is a generic device which can convert from
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-- LV to MV and back, and HV to MV and back.
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-- The machine will not convert from HV directly to LV.
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-- The machine is configured by the wiring below and above it.
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-- It is prepared for an upgrade slot if this is to be implemented later.
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--
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-- The conversion factor is a constant and the conversion is a lossy operation.
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--
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-- It works like this:
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-- The top side is setup as the "RE" side, the bottom as the "PR" side.
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-- Once the RE side is powered it will deliver power to the other side.
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-- Unused power is wasted just like any other producer!
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--
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minetest.register_node(
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"technic:supply_converter", {
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description = "Supply Converter",
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tiles = {"technic_supply_converter_top.png", "technic_supply_converter_bottom.png", "technic_supply_converter_side.png",
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"technic_supply_converter_side.png", "technic_supply_converter_side.png", "technic_supply_converter_side.png"},
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groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
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sounds = default.node_sound_wood_defaults(),
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drawtype = "nodebox",
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paramtype = "light",
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is_ground_content = true,
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node_box = {
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type = "fixed",
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fixed = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
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},
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selection_box = {
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type = "fixed",
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fixed = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
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},
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on_construct = function(pos)
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local meta = minetest.env:get_meta(pos)
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meta:set_float("technic_hv_power_machine", 1)
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meta:set_float("technic_mv_power_machine", 1)
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meta:set_float("technic_power_machine", 1)
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meta:set_string("infotext", "Supply Converter")
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meta:set_float("active", false)
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end,
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})
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minetest.register_craft({
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output = 'technic:supply_converter 1',
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recipe = {
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{'technic:stainless_steel_ingot', 'technic:stainless_steel_ingot','technic:stainless_steel_ingot'},
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{'technic:mv_transformer', 'technic:mv_cable', 'technic:lv_transformer'},
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{'technic:mv_cable', 'technic:rubber', 'technic:lv_cable'},
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}
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})
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minetest.register_abm(
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{ nodenames = {"technic:supply_converter"},
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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)
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-- Conversion factors (a picture of V*A - loss) Asymmetric.
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local lv_mv_factor = 5 -- division (higher is less efficient)
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local mv_lv_factor = 4 -- multiplication (higher is more efficient)
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local mv_hv_factor = 5 -- division
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local hv_mv_factor = 4 -- multiplication
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local max_lv_demand = 2000 -- The increment size power supply tier. Determines how many are needed
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local max_mv_demand = 2000 -- -""-
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local max_hv_demand = 2000 -- -""-
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-- Machine information
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local machine_name = "Supply Converter"
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local meta = minetest.env:get_meta(pos)
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local upgrade = "" -- Replace with expansion slot later??
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-- High voltage on top, low at bottom regardless of converter direction
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local pos_up = {x=pos.x, y=pos.y+1, z=pos.z}
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local pos_down = {x=pos.x, y=pos.y-1, z=pos.z}
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local meta_up = minetest.env:get_meta(pos_up)
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local meta_down = minetest.env:get_meta(pos_down)
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local convert_MV_LV = 0
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local convert_LV_MV = 0
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local convert_MV_HV = 0
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local convert_HV_MV = 0
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-- check cabling
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if meta_up:get_float("mv_cablelike") == 1 and meta_down:get_float("cablelike") == 1 then
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convert_MV_LV = 1
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upgrade = "MV-LV step down"
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end
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if meta_up:get_float("cablelike") == 1 and meta_down:get_float("mv_cablelike") == 1 then
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convert_LV_MV = 1
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upgrade = "LV-MV step up"
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end
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if meta_up:get_float("mv_cablelike") == 1 and meta_down:get_float("hv_cablelike") == 1 then
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convert_MV_HV = 1
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upgrade = "MV-HV step up"
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end
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if meta_up:get_float("hv_cablelike") == 1 and meta_down:get_float("mv_cablelike") == 1 then
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convert_HV_MV = 1
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upgrade = "HV-MV step down"
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end
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--print("Cabling:"..convert_MV_LV.."|"..convert_LV_MV.."|"..convert_HV_MV.."|"..convert_MV_HV)
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if convert_MV_LV == 0 and convert_LV_MV == 0 and convert_HV_MV == 0 and convert_MV_HV == 0 then
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meta:set_string("infotext", machine_name.." has bad cabling")
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meta:set_int("LV_EU_demand", 0)
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meta:set_int("LV_EU_supply", 0)
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meta:set_int("LV_EU_input", 0)
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meta:set_int("MV_EU_demand", 0)
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meta:set_int("MV_EU_supply", 0)
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meta:set_int("MV_EU_input", 0)
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meta:set_int("HV_EU_demand", 0)
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meta:set_int("HV_EU_supply", 0)
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meta:set_int("HV_EU_input", 0)
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return
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end
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-- The node is programmed with an upgrade slot
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-- containing a MV-LV step down, LV-MV step up, HV-MV step down or MV-HV step up unit
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if upgrade == "" then
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meta:set_string("infotext", machine_name.." has an empty converter slot");
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technic.unregister_LV_machine("technic:supply_converter")
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technic.unregister_MV_machine("technic:supply_converter")
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technic.unregister_HV_machine("technic:supply_converter")
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meta:set_int("LV_EU_demand", 0)
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meta:set_int("LV_EU_supply", 0)
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meta:set_int("LV_EU_input", 0)
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meta:set_int("MV_EU_demand", 0)
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meta:set_int("MV_EU_supply", 0)
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meta:set_int("MV_EU_input", 0)
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meta:set_int("HV_EU_demand", 0)
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meta:set_int("HV_EU_supply", 0)
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meta:set_int("HV_EU_input", 0)
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return
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end
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-- State machine
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if upgrade == "MV-LV step down" and convert_MV_LV then
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-- Register machine type
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technic.register_LV_machine("technic:supply_converter","PR")
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technic.register_MV_machine("technic:supply_converter","RE")
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-- Power off automatically if no longer connected to a switching station
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technic.switching_station_timeout_count(pos, "MV")
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local eu_input = meta:get_int("MV_EU_input")
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if eu_input == 0 then
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-- Unpowered - go idle
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--hacky_swap_node(pos, machine_node)
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meta:set_string("infotext", machine_name.." Unpowered")
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meta:set_int("LV_EU_supply", 0)
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meta:set_int("MV_EU_supply", 0)
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meta:set_int("LV_EU_demand", 0)
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meta:set_int("MV_EU_demand", max_mv_demand)
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else
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-- MV side has got power to spare
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meta:set_string("infotext", machine_name.." is active (MV:"..max_mv_demand.."->LV:"..eu_input*mv_lv_factor..")");
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meta:set_int("LV_EU_supply", eu_input*mv_lv_factor)
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end
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---------------------------------------------------
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elseif upgrade == "LV-MV step up" and convert_LV_MV then
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-- Register machine type
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technic.register_LV_machine("technic:supply_converter","RE")
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technic.register_MV_machine("technic:supply_converter","PR")
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-- Power off automatically if no longer connected to a switching station
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technic.switching_station_timeout_count(pos, "LV")
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local eu_input = meta:get_int("LV_EU_input")
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if eu_input == 0 then
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-- Unpowered - go idle
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--hacky_swap_node(pos, machine_node)
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meta:set_string("infotext", machine_name.." Unpowered")
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meta:set_int("LV_EU_supply", 0)
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meta:set_int("MV_EU_supply", 0)
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meta:set_int("LV_EU_demand", max_lv_demand)
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meta:set_int("MV_EU_demand", 0)
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else
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-- LV side has got power to spare
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meta:set_string("infotext", machine_name.." is active (LV:"..max_lv_demand.."->MV:"..eu_input/lv_mv_factor..")");
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meta:set_int("MV_EU_supply", eu_input/lv_mv_factor)
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end
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---------------------------------------------------
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elseif upgrade == "HV-MV step down" and convert_HV_MV then
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-- Register machine type
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technic.register_MV_machine("technic:supply_converter","PR")
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technic.register_HV_machine("technic:supply_converter","RE")
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-- Power off automatically if no longer connected to a switching station
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technic.switching_station_timeout_count(pos, "HV")
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local eu_input = meta:get_int("HV_EU_input")
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if eu_input == 0 then
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-- Unpowered - go idle
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--hacky_swap_node(pos, machine_node)
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meta:set_string("infotext", machine_name.." Unpowered")
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meta:set_int("MV_EU_supply", 0)
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meta:set_int("HV_EU_supply", 0)
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meta:set_int("MV_EU_demand", 0)
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meta:set_int("HV_EU_demand", max_hv_demand)
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else
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-- HV side has got power to spare
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meta:set_string("infotext", machine_name.." is active (HV:"..max_hv_demand.."->MV:"..eu_input*hv_mv_factor..")");
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meta:set_int("MV_EU_supply", eu_input*hv_mv_factor)
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end
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---------------------------------------------------
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elseif upgrade == "MV-HV step up" and convert_MV_HV then
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-- Register machine type
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technic.register_MV_machine("technic:supply_converter","RE")
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technic.register_HV_machine("technic:supply_converter","PR")
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-- Power off automatically if no longer connected to a switching station
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technic.switching_station_timeout_count(pos, "MV")
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local eu_input = meta:get_int("MV_EU_input")
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if eu_input == 0 then
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-- Unpowered - go idle
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--hacky_swap_node(pos, machine_node)
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meta:set_string("infotext", machine_name.." Unpowered")
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meta:set_int("MV_EU_supply", 0)
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meta:set_int("HV_EU_supply", 0)
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meta:set_int("MV_EU_demand", max_mv_demand)
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meta:set_int("HV_EU_demand", 0)
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else
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-- MV side has got power to spare
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meta:set_string("infotext", machine_name.." is active (MV:"..max_mv_demand.."->HV:"..eu_input/mv_hv_factor..")");
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meta:set_int("HV_EU_supply", eu_input/mv_hv_factor)
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end
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---------------------------------------------------
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end
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end,
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})
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