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Partial rewrite
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ShadowNinja
220
technic/machines/MV/power_radiator.lua
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220
technic/machines/MV/power_radiator.lua
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-- The power radiator fuctions like an inductive charger
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-- only better in the game setting.
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-- The purpose is to allow small appliances to receive power
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-- without the overhead of the wiring needed for larger machines.
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--
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-- The power radiator will consume power corresponding to the
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-- sum(power rating of the attached appliances)/0.06
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-- Using inductive power transfer is very inefficient so this is
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-- set to the factor 0.06.
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--
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-- Punching the radiator will toggle the power state of all attached appliances.
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local power_radius = 12
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------------------------------------------------------------------
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-- API for inductive powered nodes:
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-- Use the functions below to set the corresponding callbacks
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-- Also two nodes are needed: The inactive and the active one. The active must be called <name>_active .
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------------------------------------------------------------------
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-- Register a new appliance using this function
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technic.inductive_nodes = {}
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technic.register_inductive_machine = function(name)
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table.insert(technic.inductive_nodes, name)
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table.insert(technic.inductive_nodes, name.."_active")
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end
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-- Appliances:
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-- has_supply: pos of supply node if the appliance has a power radiator near with sufficient power for the demand else ""
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-- EU_demand: The power demand of the device.
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-- EU_charge: Actual use. set to EU_demand if active==1
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-- active: set to 1 if the device is on
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technic.inductive_on_construct = function(pos, eu_demand, infotext)
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local meta = minetest.get_meta(pos)
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meta:set_string("infotext", infotext)
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meta:set_int("technic_inductive_power_machine", 1)
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meta:set_int("EU_demand", eu_demand) -- The power demand of this appliance
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meta:set_int("EU_charge", 0) -- The actual power draw of this appliance
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meta:set_string("has_supply", "") -- Register whether we are powered or not. For use with several radiators.
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meta:set_int("active", 0) -- If the appliance can be turned on and off by using it use this.
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end
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technic.inductive_on_punch_off = function(pos, eu_charge, swapnode)
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local meta = minetest.get_meta(pos)
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if meta:get_string("has_supply") ~= "" then
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hacky_swap_node(pos, swapnode)
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meta:set_int("active", 1)
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meta:set_int("EU_charge",eu_charge)
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--print("-----------")
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--print("Turn on:")
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--print("EU_charge: "..meta:get_int("EU_charge"))
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--print("has_supply: "..meta:get_string("has_supply"))
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--print("<----------->")
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end
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end
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technic.inductive_on_punch_on = function(pos, eu_charge, swapnode)
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local meta = minetest.get_meta(pos)
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hacky_swap_node(pos, swapnode)
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meta:set_int("active", 0)
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meta:set_int("EU_charge",eu_charge)
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--print("-----------")
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--print("Turn off:")
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--print("EU_charge: "..meta:get_int("EU_charge"))
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--print("has_supply: "..meta:get_string("has_supply"))
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--print("<---------->")
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end
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local shutdown_inductive_appliances = function(pos)
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-- The supply radius
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local rad = power_radius
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-- If the radiator is removed. turn off all appliances in region
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-- If another radiator is near it will turn on the appliances again
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local positions = minetest.find_nodes_in_area(
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{x=pos.x-rad, y=pos.y-rad, z=pos.z-rad},
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{x=pos.x+rad, y=pos.y+rad, z=pos.z+rad},
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technic.inductive_nodes)
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for _, pos1 in pairs(positions) do
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local meta1 = minetest.get_meta(pos1)
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-- If the appliance is belonging to this node
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if meta1:get_string("has_supply") == pos.x..pos.y..pos.z then
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local nodename = minetest.get_node(pos1).name
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-- Swap the node and make sure it is off and unpowered
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if string.sub(nodename, -7) == "_active" then
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hacky_swap_node(pos1, string.sub(nodename, 1, -8))
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meta1:set_int("active", 0)
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meta1:set_int("EU_charge", 0)
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end
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meta1:set_string("has_supply", "")
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end
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end
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end
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local toggle_on_off_inductive_appliances = function(pos, node, puncher)
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if pos == nil then return end
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-- The supply radius
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local rad = power_radius
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local positions = minetest.find_nodes_in_area(
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{x=pos.x-rad, y=pos.y-rad, z=pos.z-rad},
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{x=pos.x+rad, y=pos.y+rad, z=pos.z+rad},
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technic.inductive_nodes)
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for _, pos1 in pairs(positions) do
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local meta1 = minetest.get_meta(pos1)
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if meta1:get_string("has_supply") == pos.x..pos.y..pos.z then
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minetest.punch_node(pos1)
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end
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end
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end
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minetest.register_node("technic:power_radiator", {
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description = "Power Radiator",
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tiles = {"technic_lv_cable.png", "technic_lv_cable.png", "technic_lv_cable.png",
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"technic_lv_cable.png", "technic_lv_cable.png", "technic_lv_cable.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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on_construct = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_int("MV_EU_demand",1) -- Demand on the primary side when idle
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meta:set_int("connected_EU_demand",0) -- Potential demand of connected appliances
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meta:set_string("infotext", "Power Radiator")
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end,
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on_dig = function(pos, node, digger)
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shutdown_inductive_appliances(pos)
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return minetest.node_dig(pos, node, digger)
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end,
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on_punch = function(pos, node, puncher)
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toggle_on_off_inductive_appliances(pos, node, puncher)
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end
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})
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minetest.register_craft({
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output = 'technic:power_radiator 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:copper_coil', 'technic:mv_transformer', 'technic:copper_coil'},
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{'technic:rubber', 'technic:mv_cable0', 'technic:rubber'},
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}
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})
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minetest.register_abm({
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nodenames = {"technic:power_radiator"},
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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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local meta = minetest.env:get_meta(pos)
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local eu_input = meta:get_int("MV_EU_input")
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local eu_demand = meta:get_int("MV_EU_demand")
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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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if eu_input == 0 then
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-- No power
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meta:set_string("infotext", "Power Radiator is unpowered");
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-- meta:set_int("active", 1) -- used for setting textures someday maybe
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shutdown_inductive_appliances(pos)
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meta:set_int("connected_EU_demand", 0)
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meta:set_int("MV_EU_demand",1)
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elseif eu_input == eu_demand then
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-- Powered and ready
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-- The maximum EU sourcing a single radiator can provide.
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local max_charge = 30000 -- == the max EU demand of the radiator
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local connected_EU_demand = meta:get_int("connected_EU_demand")
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-- Efficiency factor
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local eff_factor = 0.06
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-- The supply radius
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local rad = power_radius
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local meta1 = nil
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local pos1 = {}
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local used_charge = 0
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-- Index all nodes within supply range
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local positions = minetest.find_nodes_in_area(
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{x=pos.x-rad, y=pos.y-rad, z=pos.z-rad},
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{x=pos.x+rad, y=pos.y+rad, z=pos.z+rad},
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technic.inductive_nodes)
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for _, pos1 in pairs(positions) do
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local meta1 = minetest.get_meta(pos1)
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-- If not supplied see if this node can handle it.
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if meta1:get_string("has_supply") == "" then
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-- if demand surpasses the capacity of this node, don't bother adding it.
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local app_eu_demand = math.floor(meta1:get_int("EU_demand") / eff_factor)
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if connected_EU_demand + app_eu_demand <= max_charge then
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-- We can power the appliance. Register, and spend power if it is on.
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connected_EU_demand = connected_EU_demand + app_eu_demand
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meta1:set_string("has_supply", pos.x..pos.y..pos.z)
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--Always 0: used_charge = math.floor(used_charge + meta1:get_int("EU_charge") / eff_factor)
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end
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elseif meta1:get_string("has_supply") == pos.x..pos.y..pos.z then
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-- The appliance has power from this node. Spend power if it is on.
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used_charge = used_charge + math.floor(meta1:get_int("EU_charge") / eff_factor)
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end
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meta:set_string("infotext", "Power Radiator is powered ("
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..math.floor(used_charge / max_charge * 100)
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.."% of maximum power)");
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if used_charge == 0 then
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meta:set_int("MV_EU_demand", 1) -- Still idle
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else
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meta:set_int("MV_EU_demand", used_charge)
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end
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end
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-- Save state
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meta:set_int("connected_EU_demand", connected_EU_demand)
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end
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end,
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})
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technic.register_machine("MV", "technic:power_radiator", technic.receiver)
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