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Joachim Stolberg 2019-06-11 20:31:22 +02:00
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--[[
=======================================================================
Tubelib Biogas Machines Mod
by Micu (c) 2018, 2019
Copyright (C) 2018, 2019 Michal Cieslakiewicz
Biogas Jet Furnace is an upgraded version of standard Gas Furnace.
It works 2 times faster in both item cooking speed and Biogas
consumption. One unit of Biogas lasts for 20 seconds but items
are cooked twice as fast. However, this puts more stress on internal
parts so machine needs to be serviced more frequently.
Please see gasfurnace.lua for differences between Biogas and Coal
furnaces as this device is functionally identical to Gas Furnace.
The only extra upgrade is support for pulling whole stacks from
output tray (like HighPerf Chest), so its output can be paired with
HighPerf Pusher.
Note about implementation: to maintain timer at 1 sec while halving
cooking time a random factor has been introduced for all cooking
durations that are odd numbers. Such items will cook either longer or
quicker with 50/50 probability. Example: from 10 iron lumps that have
standard cooking time 3 sec each, ~5 items should cook for 2 sec and
~5 for 1 sec giving average cooking time 1.5 sec and using proper
amount of Biogas.
Tubelib v2 implementation info:
* device updates itself every tick, so cycle_time must be set to 1
even though production takes longer (start method sets timer to
this value)
* keep_running function is called every time item is produced
(not every processing tick - function does not accept neither 0
nor fractional values for num_items parameter)
* desired_state metadata allows to properly change non-running target
state during transition; when new state differs from old one, timer
is reset so it is guaranteed that each countdown starts from
COUNTDOWN_TICKS
* num_items in keep_running method is set to 1 (default value);
machine aging is controlled by aging_factor solely; tubelib item
counter is used to count production iterations not actual items
License: LGPLv2.1+
=======================================================================
]]--
--[[
---------
Variables
---------
]]--
-- Jet Furnace uses Biogas twice as fast so 1 Biogas unit burns for 20 sec
local BIOGAS_TICKS = 20
-- timing
local TIMER_TICK_SEC = 1 -- Node timer tick
local STANDBY_TICKS = 4 -- Standby mode timer frequency factor
local COUNTDOWN_TICKS = 4 -- Ticks to standby
-- machine inventory
local INV_H = 3 -- Inventory height
local INV_IN_W = 3 -- Input inventory width
local INV_OUT_W = (6 - INV_IN_W) -- Output inventory width
--[[
--------
Formspec
--------
]]--
-- static data for formspec
local fmxy = {
inv_h = tostring(INV_H),
inv_in_w = tostring(INV_IN_W),
mid_x = tostring(INV_IN_W + 1),
inv_out_w = tostring(INV_OUT_W),
inv_out_x = tostring(INV_IN_W + 2),
biogas_time = tostring(BIOGAS_TICKS * TIMER_TICK_SEC)
}
-- formspec
local function formspec(self, pos, meta)
local state = meta:get_int("tubelib_state")
local fuel_pct = tostring(100 * meta:get_int("fuel_ticks") / BIOGAS_TICKS)
local item_pct = tostring(100 * (1 - meta:get_int("item_ticks") / meta:get_int("item_total")))
return "size[8,8.25]" ..
default.gui_bg ..
default.gui_bg_img ..
default.gui_slots ..
"list[context;src;0,0;" .. fmxy.inv_in_w .. "," .. fmxy.inv_h .. ";]" ..
"list[context;cur;" .. fmxy.inv_in_w .. ",0;1,1;]" ..
"image[" .. fmxy.inv_in_w ..
",1;1,1;biogasmachines_gasfurnace_inv_bg.png^[lowpart:" ..
fuel_pct .. ":biogasmachines_gasfurnace_inv_fg.png]" ..
"image[" .. fmxy.mid_x .. ",1;1,1;gui_furnace_arrow_bg.png^[lowpart:" ..
item_pct .. ":gui_furnace_arrow_fg.png^[transformR270]" ..
"list[context;fuel;" .. fmxy.inv_in_w .. ",2;1,1;]" ..
"item_image[" .. fmxy.inv_in_w .. ",2;1,1;tubelib_addons1:biogas]" ..
"image_button[" .. fmxy.mid_x .. ",2;1,1;" ..
self:get_state_button_image(meta) .. ";state_button;]" ..
"item_image[2,3.25;0.5,0.5;biogasmachines:jetfurnace]" ..
"label[2.5,3.25;=]" ..
"item_image[2.75,3.25;0.5,0.5;default:furnace]" ..
"label[3.25,3.25;x 2]" ..
"item_image[4.5,3.25;0.5,0.5;tubelib_addons1:biogas]" ..
"tooltip[4.5,3.25;0.5,0.5;Biogas]" ..
"label[5,3.25;= " .. fmxy.biogas_time .. " sec]" ..
"list[context;dst;" .. fmxy.inv_out_x .. ",0;" .. fmxy.inv_out_w ..
"," .. fmxy.inv_h .. ";]" ..
"list[current_player;main;0,4;8,1;]" ..
"list[current_player;main;0,5.25;8,3;8]" ..
"listring[context;dst]" ..
"listring[current_player;main]" ..
"listring[context;src]" ..
"listring[current_player;main]" ..
"listring[context;fuel]" ..
"listring[current_player;main]" ..
(state == tubelib.RUNNING and
"box[" .. fmxy.inv_in_w .. ",0;0.82,0.88;#BF5F2F]" or
"listring[context;cur]listring[current_player;main]") ..
default.get_hotbar_bg(0, 4)
end
--[[
-------
Helpers
-------
]]--
-- reset processing data
local function state_meta_reset(pos, meta)
meta:set_int("item_ticks", -1)
meta:set_int("item_total", -1)
end
-- Wrapper for 'cooking' get_craft_result() function for specified ItemStack
-- Return values are as follows:
-- time - cooking time or 0 if not cookable
-- input - input itemstack (take it from source stack to get decremented input)
-- output - output itemstack array (all extra leftover products are also here)
-- decr_input - decremented input (without leftover products)
local function get_cooking_items(stack)
if stack:is_empty() then
return 0, nil, nil, nil
end
local cookout, decinp = minetest.get_craft_result({ method = "cooking",
width = 1, items = { stack } })
if cookout.time <= 0 or cookout.item:is_empty() then
return 0, nil, nil, nil
end
local inp = stack
local outp = { cookout.item }
local decp = decinp and decinp.items and decinp.items[1] or nil
if decp and not decp:is_empty() then
if decp:get_name() ~= stack:get_name() then
outp[#outp + 1] = decp
decp = ItemStack({})
else
inp = ItemStack(stack:get_name() .. " " ..
tostring(stack:get_count() - decp:get_count()))
end
end
return cookout.time, inp, outp, decp
end
-- calculates fast (jet) cooking time, adding randomly 1 (with 50/50 chance)
-- to odd durations to compensate halves
local function get_fast_cooking_time(time)
local otime = math.max(math.floor(time + 0.5), 2) -- rounding
local ntime = math.floor(otime / 2)
if otime % 2 == 0 then
return ntime
else
return math.random(ntime, ntime + 1)
end
end
--[[
-------------
State machine
-------------
]]--
local machine = tubelib.NodeStates:new({
node_name_passive = "biogasmachines:jetfurnace",
node_name_active = "biogasmachines:jetfurnace_active",
node_name_defect = "biogasmachines:jetfurnace_defect",
infotext_name = "Biogas Jet Furnace",
cycle_time = TIMER_TICK_SEC,
standby_ticks = STANDBY_TICKS,
has_item_meter = true,
aging_factor = 20,
on_start = function(pos, meta, oldstate)
meta:set_int("desired_state", tubelib.RUNNING)
state_meta_reset(pos, meta)
end,
on_stop = function(pos, meta, oldstate)
meta:set_int("desired_state", tubelib.STOPPED)
state_meta_reset(pos, meta)
end,
formspec_func = formspec,
})
-- fault function for convenience as there is no on_fault method (yet)
local function machine_fault(pos, meta)
meta:set_int("desired_state", tubelib.FAULT)
state_meta_reset(pos, meta)
machine:fault(pos, meta)
end
-- customized version of NodeStates:idle()
local function countdown_to_halt(pos, meta, target_state)
if target_state ~= tubelib.STANDBY and
target_state ~= tubelib.BLOCKED and
target_state ~= tubelib.STOPPED and
target_state ~= tubelib.FAULT then
return true
end
if machine:get_state(meta) == tubelib.RUNNING and
meta:get_int("desired_state") ~= target_state then
meta:set_int("tubelib_countdown", COUNTDOWN_TICKS)
meta:set_int("desired_state", target_state)
end
local countdown = meta:get_int("tubelib_countdown") - 1
if countdown >= -1 then
-- we don't need anything less than -1
meta:set_int("tubelib_countdown", countdown)
end
if countdown < 0 then
if machine:get_state(meta) == target_state then
return true
end
meta:set_int("desired_state", target_state)
-- workaround for switching between non-running states
meta:set_int("tubelib_state", tubelib.RUNNING)
if target_state == tubelib.FAULT then
machine_fault(pos, meta)
elseif target_state == tubelib.STOPPED then
machine:stop(pos, meta)
elseif target_state == tubelib.BLOCKED then
machine:blocked(pos, meta)
else
machine:standby(pos, meta)
end
return false
end
return true
end
-- countdown to one of two states depending on fuel availability
local function fuel_countdown_to_halt(pos, meta, target_state_fuel, target_state_empty)
local inv = meta:get_inventory()
if meta:get_int("fuel_ticks") == 0 and inv:is_empty("fuel") then
return countdown_to_halt(pos, meta, target_state_empty)
else
return countdown_to_halt(pos, meta, target_state_fuel)
end
end
--[[
---------
Callbacks
---------
]]--
-- do not allow to dig protected or non-empty machine
local function can_dig(pos, player)
if minetest.is_protected(pos, player:get_player_name()) then
return false
end
local meta = minetest.get_meta(pos);
local inv = meta:get_inventory()
return inv:is_empty("src") and inv:is_empty("dst")
and inv:is_empty("fuel")
end
-- cleanup after digging
local function after_dig_node(pos, oldnode, oldmetadata, digger)
tubelib.remove_node(pos)
end
-- init machine after placement
local function after_place_node(pos, placer, itemstack, pointed_thing)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
inv:set_size('src', INV_H * INV_IN_W)
inv:set_size('cur', 1)
inv:set_size('fuel', 1)
inv:set_size('dst', INV_H * INV_OUT_W)
meta:set_string("owner", placer:get_player_name())
meta:set_int("fuel_ticks", 0)
state_meta_reset(pos, meta)
local number = tubelib.add_node(pos, "biogasmachines:jetfurnace")
machine:node_init(pos, number)
end
-- validate incoming items
local function allow_metadata_inventory_put(pos, listname, index, stack, player)
if minetest.is_protected(pos, player:get_player_name()) then
return 0
end
if listname == "src" then
if stack:get_name() == "tubelib_addons1:biogas" then
return 0
else
return stack:get_count()
end
elseif listname == "cur" or listname == "dst" then
return 0
elseif listname == "fuel" then
if stack:get_name() == "tubelib_addons1:biogas" then
return stack:get_count()
else
return 0
end
end
return 0
end
-- validate items move
local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
local meta = minetest.get_meta(pos)
if to_list == "cur" or
(from_list == "cur" and machine:get_state(meta) == tubelib.RUNNING) then
return 0
end
local inv = meta:get_inventory()
local stack = inv:get_stack(from_list, from_index)
return allow_metadata_inventory_put(pos, to_list, to_index, stack, player)
end
-- validate items retrieval
local function allow_metadata_inventory_take(pos, listname, index, stack, player)
if minetest.is_protected(pos, player:get_player_name()) then
return 0
end
if listname == "cur" then
local meta = minetest.get_meta(pos)
if machine:get_state(meta) == tubelib.RUNNING then
return 0
end
end
return stack:get_count()
end
-- formspec callback
local function on_receive_fields(pos, formname, fields, player)
if minetest.is_protected(pos, player:get_player_name()) then
return
end
machine:state_button_event(pos, fields)
end
-- tick-based item production
local function on_timer(pos, elapsed)
local node = minetest.get_node(pos)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
local fuel = meta:get_int("fuel_ticks")
local recipe = {}
local inp
if inv:is_empty("cur") then
-- idle and ready, check for something to work with
if inv:is_empty("src") then
return fuel_countdown_to_halt(pos, meta,
tubelib.STANDBY, tubelib.STOPPED)
end
-- find item to cook/smelt that fits output tray
-- (parse list items as first choice is not always the best one)
local idx = -2
for i = 1, inv:get_size("src") do
inp = inv:get_stack("src", i)
if not inp:is_empty() then
recipe.time, recipe.input, recipe.output,
recipe.decremented_input = get_cooking_items(inp)
if recipe.time > 0 then
idx = -1
inv:set_list("dst_copy", inv:get_list("dst"))
local is_dst_ok = true
for _, stack in ipairs(recipe.output) do
local outp = inv:add_item("dst_copy", stack)
if not outp:is_empty() then
is_dst_ok = false
break
end
end
inv:set_size("dst_copy", 0)
if is_dst_ok then
idx = i
break
end
end
end
end
-- (idx == -2 - nothing cookable found in src)
-- (idx == -1 - cookable item in src but no space in dst)
if idx == -2 then
return fuel_countdown_to_halt(pos, meta,
tubelib.STANDBY, tubelib.STOPPED)
elseif idx == -1 then
if machine:get_state(meta) == tubelib.STANDBY then
-- adapt behaviour to other biogas machines
-- (standby->blocked should go through running)
machine:start(pos, meta, true)
return false
else
return fuel_countdown_to_halt(pos, meta,
tubelib.BLOCKED, tubelib.FAULT)
end
end
if machine:get_state(meta) == tubelib.STANDBY or
machine:get_state(meta) == tubelib.BLOCKED then
-- something to do, wake up and re-entry
machine:start(pos, meta, true)
return false
end
if fuel == 0 and inv:is_empty("fuel") then
return countdown_to_halt(pos, meta, tubelib.FAULT)
end
inv:set_stack("src", idx, recipe.decremented_input)
inv:set_stack("cur", 1, recipe.input)
recipe.time = get_fast_cooking_time(recipe.time)
meta:set_int("item_ticks", recipe.time)
meta:set_int("item_total", recipe.time)
else
-- production
inp = inv:get_stack("cur", 1)
if machine:get_state(meta) ~= tubelib.RUNNING or
inp:is_empty() then
-- exception, should not happen - oops
machine_fault(pos, meta)
return false
end
-- production tick
if fuel == 0 and inv:is_empty("fuel") then
return countdown_to_halt(pos, meta, tubelib.FAULT)
end
local itemcnt = meta:get_int("item_ticks")
local zzz -- dummy
if itemcnt < 0 then
-- interrupted - cook again
recipe.time, zzz, recipe.output = get_cooking_items(inp)
recipe.time = get_fast_cooking_time(recipe.time)
meta:set_int("item_total", recipe.time)
itemcnt = recipe.time
else
recipe.output = nil
end
itemcnt = itemcnt - 1
if itemcnt == 0 then
if not recipe.output then
zzz, zzz, recipe.output = get_cooking_items(inp)
end
for _, i in ipairs(recipe.output) do
inv:add_item("dst", i)
end
inv:set_stack("cur", 1, ItemStack({}))
state_meta_reset(pos, meta)
-- item produced, increase aging
machine:keep_running(pos, meta, COUNTDOWN_TICKS)
else
meta:set_int("item_ticks", itemcnt)
end
-- consume fuel tick
if fuel == 0 then
if not inv:is_empty("fuel") then
inv:remove_item("fuel",
ItemStack("tubelib_addons1:biogas 1"))
fuel = BIOGAS_TICKS
else
machine_fault(pos, meta) -- oops
return false
end
end
meta:set_int("fuel_ticks", fuel - 1)
end
meta:set_int("tubelib_countdown", COUNTDOWN_TICKS)
meta:set_int("desired_state", tubelib.RUNNING)
meta:set_string("formspec", formspec(machine, pos, meta))
return true
end
--[[
-----------------
Node registration
-----------------
]]--
minetest.register_node("biogasmachines:jetfurnace", {
description = "Tubelib Biogas Jet Furnace",
tiles = {
-- up, down, right, left, back, front
"biogasmachines_jetfurnace_top.png",
"biogasmachines_bottom.png",
"biogasmachines_jetfurnace_side.png",
"biogasmachines_jetfurnace_side.png",
"biogasmachines_jetfurnace_side.png",
"biogasmachines_jetfurnace_side.png",
},
drawtype = "nodebox",
paramtype = "light",
sunlight_propagates = true,
paramtype2 = "facedir",
groups = { choppy = 2, cracky = 2, crumbly = 2 },
is_ground_content = false,
sounds = default.node_sound_metal_defaults(),
drop = "",
can_dig = can_dig,
after_dig_node = function(pos, oldnode, oldmetadata, digger)
machine:after_dig_node(pos, oldnode, oldmetadata, digger)
after_dig_node(pos, oldnode, oldmetadata, digger)
end,
on_rotate = screwdriver.disallow,
on_timer = on_timer,
on_receive_fields = on_receive_fields,
allow_metadata_inventory_put = allow_metadata_inventory_put,
allow_metadata_inventory_move = allow_metadata_inventory_move,
allow_metadata_inventory_take = allow_metadata_inventory_take,
after_place_node = after_place_node,
})
minetest.register_node("biogasmachines:jetfurnace_active", {
description = "Tubelib Biogas Jet Furnace",
tiles = {
-- up, down, right, left, back, front
{
image = "biogasmachines_jetfurnace_active_top.png",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 1.5,
},
},
"biogasmachines_bottom.png",
"biogasmachines_jetfurnace_side.png",
"biogasmachines_jetfurnace_side.png",
"biogasmachines_jetfurnace_side.png",
"biogasmachines_jetfurnace_side.png",
},
drawtype = "nodebox",
paramtype = "light",
sunlight_propagates = true,
paramtype2 = "facedir",
groups = { crumbly = 0, not_in_creative_inventory = 1 },
is_ground_content = false,
light_source = 6,
sounds = default.node_sound_metal_defaults(),
drop = "",
can_dig = can_dig,
after_dig_node = function(pos, oldnode, oldmetadata, digger)
machine:after_dig_node(pos, oldnode, oldmetadata, digger)
after_dig_node(pos, oldnode, oldmetadata, digger)
end,
on_rotate = screwdriver.disallow,
on_timer = on_timer,
on_receive_fields = on_receive_fields,
allow_metadata_inventory_put = allow_metadata_inventory_put,
allow_metadata_inventory_move = allow_metadata_inventory_move,
allow_metadata_inventory_take = allow_metadata_inventory_take,
})
minetest.register_node("biogasmachines:jetfurnace_defect", {
description = "Tubelib Biogas Jet Furnace",
tiles = {
-- up, down, right, left, back, front
"biogasmachines_jetfurnace_top.png",
"biogasmachines_bottom.png",
"biogasmachines_jetfurnace_side.png^tubelib_defect.png",
"biogasmachines_jetfurnace_side.png^tubelib_defect.png",
"biogasmachines_jetfurnace_side.png^tubelib_defect.png",
"biogasmachines_jetfurnace_side.png^tubelib_defect.png",
},
drawtype = "nodebox",
paramtype = "light",
sunlight_propagates = true,
paramtype2 = "facedir",
groups = { choppy = 2, cracky = 2, crumbly = 2, not_in_creative_inventory = 1 },
is_ground_content = false,
sounds = default.node_sound_metal_defaults(),
can_dig = can_dig,
after_dig_node = after_dig_node,
on_rotate = screwdriver.disallow,
allow_metadata_inventory_put = allow_metadata_inventory_put,
allow_metadata_inventory_move = allow_metadata_inventory_move,
allow_metadata_inventory_take = allow_metadata_inventory_take,
after_place_node = function(pos, placer, itemstack, pointed_thing)
after_place_node(pos, placer, itemstack, pointed_thing)
machine:defect(pos, minetest.get_meta(pos))
end,
})
tubelib.register_node("biogasmachines:jetfurnace",
{ "biogasmachines:jetfurnace_active", "biogasmachines:jetfurnace_defect" }, {
on_push_item = function(pos, side, item)
local meta = minetest.get_meta(pos)
if item:get_name() == "tubelib_addons1:biogas" then
return tubelib.put_item(meta, "fuel", item)
end
return tubelib.put_item(meta, "src", item)
end,
on_pull_item = function(pos, side)
local meta = minetest.get_meta(pos)
return tubelib.get_item(meta, "dst")
end,
on_pull_stack = function(pos, side)
local meta = minetest.get_meta(pos)
return tubelib.get_stack(meta, "dst")
end,
on_unpull_item = function(pos, side, item)
local meta = minetest.get_meta(pos)
return tubelib.put_item(meta, "dst", item)
end,
on_recv_message = function(pos, topic, payload)
local meta = minetest.get_meta(pos)
if topic == "fuel" then
return tubelib.fuelstate(meta, "fuel")
end
local resp = machine:on_receive_message(pos, topic, payload)
if resp then
return resp
else
return "unsupported"
end
end,
on_node_load = function(pos)
machine:on_node_load(pos)
end,
on_node_repair = function(pos)
return machine:on_node_repair(pos)
end,
})
--[[
--------
Crafting
--------
]]--
minetest.register_craft({
output = "biogasmachines:jetfurnace",
recipe = {
{ "default:obsidian_block", "biogasmachines:gasfurnace", "" },
{ "biogasmachines:gasfurnace", "default:goldblock", "" },
{ "", "", "" },
},
})