-- MV Electric Furnace
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-- This is a faster version of the stone furnace which runs on EUs
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-- In addition to this it can be upgraded with microcontrollers and batteries
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-- This new version uses the batteries to lower the power consumption of the machine
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-- Also in addition this furnace can be attached to the pipe system from the pipeworks mod.
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-- FIXME: kpoppel I'd like to introduce an induction heating element here also
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minetest.register_craft(
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{output = 'technic:mv_electric_furnace',
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recipe = {
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{'technic:stainless_steel_ingot', 'technic:electric_furnace', 'technic:stainless_steel_ingot'},
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{'pipeworks:tube_000000', 'technic:mv_transformer', 'pipeworks:tube_000000'},
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{'technic:stainless_steel_ingot', 'technic:mv_cable', 'technic:stainless_steel_ingot'},
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}
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})
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local mv_electric_furnace_formspec =
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"invsize[8,10;]"..
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"list[current_name;src;3,1;1,1;]"..
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"list[current_name;dst;5,1;2,2;]"..
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"list[current_player;main;0,6;8,4;]"..
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"label[0,0;MV Electric Furnace]"..
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"list[current_name;upgrade1;1,4;1,1;]"..
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"list[current_name;upgrade2;2,4;1,1;]"..
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"label[1,5;Upgrade Slots]"
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minetest.register_node(
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"technic:mv_electric_furnace",
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{description = "MV Electric furnace",
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tiles = {"technic_mv_electric_furnace_top.png", "technic_mv_electric_furnace_bottom.png", "technic_mv_electric_furnace_side_tube.png",
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"technic_mv_electric_furnace_side_tube.png", "technic_mv_electric_furnace_side.png", "technic_mv_electric_furnace_front.png"},
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paramtype2 = "facedir",
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groups = {cracky=2, tubedevice=1,tubedevice_receiver=1,},
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tube={insert_object=function(pos,node,stack,direction)
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local meta=minetest.env:get_meta(pos)
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local inv=meta:get_inventory()
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return inv:add_item("src",stack)
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end,
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can_insert=function(pos,node,stack,direction)
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local meta=minetest.env:get_meta(pos)
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local inv=meta:get_inventory()
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return inv:room_for_item("src",stack)
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end,
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},
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legacy_facedir_simple = true,
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sounds = default.node_sound_stone_defaults(),
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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_string("infotext", "MV Electric furnace")
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meta:set_float("technic_mv_power_machine", 1)
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meta:set_int("tube_time", 0)
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meta:set_string("formspec", mv_electric_furnace_formspec)
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local inv = meta:get_inventory()
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inv:set_size("src", 1)
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inv:set_size("dst", 4)
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inv:set_size("upgrade1", 1)
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inv:set_size("upgrade2", 1)
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end,
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can_dig = function(pos,player)
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local meta = minetest.env:get_meta(pos);
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local inv = meta:get_inventory()
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if not inv:is_empty("src") or not inv:is_empty("dst") or not inv:is_empty("upgrade1") or not inv:is_empty("upgrade2") then
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minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
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return false
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else
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return true
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end
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end,
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})
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minetest.register_node(
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"technic:mv_electric_furnace_active",
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{description = "MV Electric Furnace",
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tiles = {"technic_mv_electric_furnace_top.png", "technic_mv_electric_furnace_bottom.png", "technic_mv_electric_furnace_side_tube.png",
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"technic_mv_electric_furnace_side_tube.png", "technic_mv_electric_furnace_side.png", "technic_mv_electric_furnace_front_active.png"},
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paramtype2 = "facedir",
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light_source = 8,
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drop = "technic:mv_electric_furnace",
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groups = {cracky=2, tubedevice=1,tubedevice_receiver=1,not_in_creative_inventory=1},
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tube={insert_object=function(pos,node,stack,direction)
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local meta=minetest.env:get_meta(pos)
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local inv=meta:get_inventory()
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return inv:add_item("src",stack)
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end,
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can_insert=function(pos,node,stack,direction)
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local meta=minetest.env:get_meta(pos)
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local inv=meta:get_inventory()
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return inv:room_for_item("src",stack)
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end,
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},
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legacy_facedir_simple = true,
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sounds = default.node_sound_stone_defaults(),
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can_dig = function(pos,player)
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local meta = minetest.env:get_meta(pos);
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local inv = meta:get_inventory()
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if not inv:is_empty("src") or not inv:is_empty("dst") or not inv:is_empty("upgrade1") or not inv:is_empty("upgrade2") then
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minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
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return false
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else
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return true
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end
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end,
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-- These three makes sure upgrades are not moved in or out while the furnace is active.
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allow_metadata_inventory_put = function(pos, listname, index, stack, player)
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if listname == "src" or listname == "dst" then
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return 99
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else
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return 0 -- Disallow the move
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end
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end,
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allow_metadata_inventory_take = function(pos, listname, index, stack, player)
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if listname == "src" or listname == "dst" then
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return 99
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else
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return 0 -- Disallow the move
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end
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end,
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allow_metadata_inventory_move = function(pos, from_list, to_list, to_list, to_index, count, player)
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return 0
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end,
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})
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local send_cooked_items = function(pos,x_velocity,z_velocity)
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-- Send items on their way in the pipe system.
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local meta=minetest.env:get_meta(pos)
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local inv = meta:get_inventory()
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local i=0
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for _,stack in ipairs(inv:get_list("dst")) do
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i=i+1
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if stack then
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local item0=stack:to_table()
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if item0 then
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item0["count"]="1"
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local item1=tube_item({x=pos.x,y=pos.y,z=pos.z},item0)
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item1:get_luaentity().start_pos = {x=pos.x,y=pos.y,z=pos.z}
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item1:setvelocity({x=x_velocity, y=0, z=z_velocity})
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item1:setacceleration({x=0, y=0, z=0})
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stack:take_item(1);
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inv:set_stack("dst", i, stack)
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return
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end
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end
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end
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end
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local smelt_item = function(pos)
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local meta=minetest.env:get_meta(pos)
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local inv = meta:get_inventory()
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meta:set_int("src_time", meta:get_int("src_time") + 3) -- Cooking time 3x faster
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local result = minetest.get_craft_result({method = "cooking", width = 1, items = inv:get_list("src")})
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if result and result.item and meta:get_int("src_time") >= result.time then
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meta:set_int("src_time", 0)
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-- check if there's room for output in "dst" list
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if inv:room_for_item("dst",result) then
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-- take stuff from "src" list
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srcstack = inv:get_stack("src", 1)
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srcstack:take_item()
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inv:set_stack("src", 1, srcstack)
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-- Put result in "dst" list
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inv:add_item("dst", result.item)
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return 1
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else
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return 0 -- done
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end
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end
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return 0 -- done
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end
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minetest.register_abm(
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{nodenames = {"technic:mv_electric_furnace","technic:mv_electric_furnace_active"},
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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 state = meta:get_int("state")
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local next_state = state
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-- Machine information
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local machine_name = "MV Electric Furnace"
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local machine_node = "technic:mv_electric_furnace"
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local machine_state_demand = { 50, 2000, 1500, 1000 }
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-- Setup meta data if it does not exist. state is used as an indicator of this
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if state == 0 then
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meta:set_int("state", 1)
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meta:set_int("MV_EU_demand", machine_state_demand[1])
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meta:set_int("MV_EU_input", 0)
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return
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end
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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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-- Execute always logic
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-- CODE HERE --
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-- State machine
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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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next_state = 1
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elseif eu_input == machine_state_demand[state] then
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-- Powered - do the state specific actions
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-- Execute always if powered logic
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local meta=minetest.env:get_meta(pos)
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-- Get the names of the upgrades
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local meta=minetest.env:get_meta(pos)
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local inv = meta:get_inventory()
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local upg_item1
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local upg_item1_name=""
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local upg_item2
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local upg_item2_name=""
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local srcstack = inv:get_stack("upgrade1", 1)
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if srcstack then upg_item1=srcstack:to_table() end
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srcstack = inv:get_stack("upgrade2", 1)
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if srcstack then upg_item2=srcstack:to_table() end
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if upg_item1 then upg_item1_name=upg_item1.name end
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if upg_item2 then upg_item2_name=upg_item2.name end
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-- Save some power by installing battery upgrades. Fully upgraded makes this
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-- furnace use the same amount of power as the LV version
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local EU_saving_upgrade = 0
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if upg_item1_name=="technic:battery" then EU_saving_upgrade = EU_saving_upgrade + 1 end
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if upg_item2_name=="technic:battery" then EU_saving_upgrade = EU_saving_upgrade + 1 end
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-- Tube loading speed can be upgraded using control logic units
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local tube_speed_upgrade = 0
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if upg_item1_name=="technic:control_logic_unit" then tube_speed_upgrade = tube_speed_upgrade + 1 end
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if upg_item2_name=="technic:control_logic_unit" then tube_speed_upgrade = tube_speed_upgrade + 1 end
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-- Handle pipeworks (consumes tube_speed_upgrade)
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local pos1={x=pos.x, y=pos.y, z=pos.z}
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local x_velocity=0
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local z_velocity=0
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-- Output is on the left side of the furnace
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if node.param2==3 then pos1.z=pos1.z-1 z_velocity =-1 end
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if node.param2==2 then pos1.x=pos1.x-1 x_velocity =-1 end
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if node.param2==1 then pos1.z=pos1.z+1 z_velocity = 1 end
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if node.param2==0 then pos1.x=pos1.x+1 x_velocity = 1 end
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local output_tube_connected = false
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local meta1 = minetest.env:get_meta(pos1)
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if meta1:get_int("tubelike") == 1 then
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output_tube_connected=true
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end
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tube_time = meta:get_int("tube_time")
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tube_time = tube_time + tube_speed_upgrade
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if tube_time > 3 then
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tube_time = 0
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if output_tube_connected then
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send_cooked_items(pos,x_velocity,z_velocity)
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end
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end
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meta:set_int("tube_time", tube_time)
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-- The machine shuts down if we have nothing to smelt and no tube is connected
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-- or if we have nothing to send with a tube connected.
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if (not output_tube_connected and inv:is_empty("src"))
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or ( output_tube_connected and inv:is_empty("dst")) then
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next_state = 1
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end
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----------------------
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if state == 1 then
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hacky_swap_node(pos, machine_node)
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meta:set_string("infotext", machine_name.." Idle")
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local meta=minetest.env:get_meta(pos)
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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 result = minetest.get_craft_result({method = "cooking", width = 1, items = inv:get_list("src")})
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if result then
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meta:set_string("infotext", machine_name.." Active")
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meta:set_int("src_time", 0)
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next_state = 2+EU_saving_upgrade -- Next state is decided by the battery upgrade (state 2= 0 batteries, state 3 = 1 battery, 4 = 2 batteries)
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end
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else
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meta:set_string("infotext", "Electric Furnace Idle")
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end
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elseif state == 2 or state == 3 or state == 4 then
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hacky_swap_node(pos, machine_node.."_active")
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meta:set_string("infotext", machine_name.." Active")
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result = smelt_item(pos, data)
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if result == 0 then
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next_state = 1
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end
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end
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end
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-- Change state?
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if next_state ~= state then
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meta:set_int("MV_EU_demand", machine_state_demand[next_state])
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meta:set_int("state", next_state)
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end
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end,
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})
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technic.register_MV_machine ("technic:mv_electric_furnace","RE")
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technic.register_MV_machine ("technic:mv_electric_furnace_active","RE")
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