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gas_condenser.lua
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gas_condenser_recipes ={}
register_gas_condenser_recipe = function(src, dst)
gas_condenser_recipes[src] = dst
end
-- Receive an ItemStack of result by an ItemStack input
get_gas_condenser_recipe = function(itemstack)
local src_item = itemstack:to_table()
if src_item == nil then
return nil
end
local item_name = src_item["name"]
if gas_condenser_recipes[item_name] then
return ItemStack(gas_condenser_recipes[item_name])
else
return nil
end
end
minetest.register_alias("gas condenser", "chemistry:gas_condenser")
minetest.register_craft({
output = 'chemistry:gas_condenser',
recipe = {
{'default:stone', 'default:glass', 'default:stone'},
{'technic:dewar_vessel', 'technic:motor', 'technic:dewar_vessel'},
{'default:stone', 'technic:mv_cable', 'default:stone'},
}
})
minetest.register_craftitem("chemistry:gas_condenser", {
description = "Gas Condenser",
stack_max = 99,
})
local gas_condenser_formspec =
"invsize[8,9;]"..
"list[current_name;src;3,1;1,1;]"..
"list[current_name;dst;3,3;1,1;]"..
"list[current_player;main;0,5;8,4;]"..
"label[0,0;Gas Condenser]"
register_gas_condenser_recipe ("chemistry:nitrogen","chemistry:nitrogen_dewar_vessel")
minetest.register_node(
"chemistry:gas_condenser",
{
description = "Gas Condenser",
tiles = {"chemistry_distiller_top.png", "chemistry_distiller_bottom.png", "chemistry_gas_condenser.png",
"chemistry_gas_condenser.png", "chemistry_gas_condenser.png", "chemistry_gas_condenser.png"},
paramtype2 = "facedir",
groups = {cracky=2},
legacy_facedir_simple = true,
sounds = default.node_sound_wood_defaults(),
on_construct = function(pos)
local meta = minetest.env:get_meta(pos)
meta:set_string("infotext", "Gas Condenser")
meta:set_float("technic_power_machine", 1)
meta:set_string("formspec", gas_condenser_formspec)
local inv = meta:get_inventory()
inv:set_size("src", 1)
inv:set_size("dst", 1)
end,
can_dig = function(pos,player)
local meta = minetest.env:get_meta(pos);
local inv = meta:get_inventory()
if not inv:is_empty("src") or not inv:is_empty("dst") then
minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
return false
else
return true
end
end,
})
minetest.register_node(
"chemistry:gas_condenser_active",
{
description = "Gas Condenser",
tiles = {"chemistry_distiller_top.png", "chemistry_distiller_bottom.png", "chemistry_gas_condenser.png",
"chemistry_gas_condenser.png", "chemistry_gas_condenser.png", "chemistry_gas_condenser.png"},
paramtype2 = "facedir",
groups = {cracky=2,not_in_creative_inventory=1},
legacy_facedir_simple = true,
sounds = default.node_sound_wood_defaults(),
can_dig = function(pos,player)
local meta = minetest.env:get_meta(pos);
local inv = meta:get_inventory()
if not inv:is_empty("src") or not inv:is_empty("dst") then
minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
return false
else
return true
end
end,
})
minetest.register_abm(
{ nodenames = {"chemistry:gas_condenser","chemistry:gas_condenser_active"},
interval = 1,
chance = 1,
action = function(pos, node, active_object_count, active_object_count_wider)
-- Run a machine through its states. Takes the same arguments as the ABM action
-- and adds the machine's states and any extra data which is needed by the machine.
-- A machine is characterized by running through a set number of states (usually 2:
-- Idle and active) in some order. A state decides when to move to the next one
-- and the machine only changes state if it is powered correctly.
-- The machine will automatically shut down if disconnected from power in some fashion.
local meta = minetest.env:get_meta(pos)
local eu_input = meta:get_int("MV_EU_input")
local state = meta:get_int("state")
local next_state = state
-- Machine information
local machine_name = "Gas Condenser"
local machine_node = "chemistry:gas_condenser"
local machine_state_demand = { 100, 500 }
-- Setup meta data if it does not exist. state is used as an indicator of this
if state == 0 then
meta:set_int("state", 1)
meta:set_int("MV_EU_demand", machine_state_demand[1])
meta:set_int("MV_EU_input", 0)
return
end
-- Power off automatically if no longer connected to a switching station
technic.switching_station_timeout_count(pos, "MV")
-- State machine
if eu_input == 0 then
-- unpowered - go idle
hacky_swap_node(pos, machine_node)
meta:set_string("infotext", machine_name.." Unpowered")
next_state = 1
elseif eu_input == machine_state_demand[state] then
-- Powered - do the state specific actions
local inv = meta:get_inventory()
local empty = inv:is_empty("src")
if state == 1 then
hacky_swap_node(pos, machine_node)
meta:set_string("infotext", machine_name.." Idle")
local result = get_gas_condenser_recipe(inv:get_stack("src",1))
if not empty and result then
meta:set_int("src_time", 0)
next_state = 2
end
elseif state == 2 then
hacky_swap_node(pos, machine_node.."_active")
meta:set_string("infotext", machine_name.." Active")
if empty then
next_state = 1
else
meta:set_int("src_time", meta:get_int("src_time") + 1)
if meta:get_int("src_time") == 2 then -- 2 ticks per output
-- check if there's room for output in "dst" list
local result = get_gas_condenser_recipe(inv:get_stack("src",1))
meta:set_int("src_time", 0)
local dststack = inv:get_stack("dst", 1)
dst_item=dststack:to_table()
if dst_item["name"] == "chemistry:nitrogen_dewar_vessel" then
minetest.debug("dewar fill")
if dststack:get_wear()-(65355/100) > 0 then
minetest.debug("dewar fill2")
srcstack = inv:get_stack("src", 1)
srcstack:take_item()
inv:set_stack("src", 1, srcstack)
dst_item["wear"]=tostring(math.floor(dststack:get_wear()-(65355/100)))
inv:set_stack("dst", 1, dst_item)
else
next_state = 1
dst_item["wear"]=tostring(0)
inv:set_stack("dst", 1, dst_item)
end
elseif dst_item["name"] == "chemistry:dewar_vessel" then
minetest.debug("dewar empty")
-- take stuff from "src" list
srcstack = inv:get_stack("src", 1)
srcstack:take_item()
inv:set_stack("src", 1, srcstack)
dststack = inv:get_stack("dst", 1)
dststack:clear()
inv:set_stack("dst", 1, dststack)
-- Put result in "dst" list
inv:add_item("dst", result)
local dststack = inv:get_stack("dst", 1)
dst_item=dststack:to_table()
dst_item["wear"]=tostring(math.floor(65355-(65355/100)))
inv:set_stack("dst", 1, dst_item)
else
-- all full: go idle
next_state = 1
end
end
end
end
end
-- Change state?
if next_state ~= state then
meta:set_int("MV_EU_demand", machine_state_demand[next_state])
meta:set_int("state", next_state)
end
end
})
technic.register_MV_machine ("chemistry:gas_condenser","RE")
technic.register_MV_machine ("chemistry:gas_condenser_active","RE")