techpack/tubelib_addons1/autocrafter.lua

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2018-03-10 22:14:57 +01:00
--[[
Tubelib Addons
==============
Copyright (C) 2017 Joachim Stolberg
LGPLv2.1+
See LICENSE.txt for more information
The autocrafter is derived from pipeworks:
Copyright (C) 2004 Sam Hocevar <sam@hocevar.net> WTFPL
autocrafter.lua:
]]--
local autocrafterCache = {} -- caches some recipe data to avoid to call the slow function minetest.get_craft_result() every second
local SLEEP_CNT_START_VAL = 10
local craft_time = 2
local function count_index(invlist)
local index = {}
for _, stack in pairs(invlist) do
if not stack:is_empty() then
local stack_name = stack:get_name()
index[stack_name] = (index[stack_name] or 0) + stack:get_count()
end
end
return index
end
local function get_item_info(stack)
local name = stack:get_name()
local def = minetest.registered_items[name]
local description = def and def.description or "Unknown item"
return description, name
end
local function get_craft(pos, inventory, hash)
local hash = hash or minetest.hash_node_position(pos)
local craft = autocrafterCache[hash]
if not craft then
local recipe = inventory:get_list("recipe")
local output, decremented_input = minetest.get_craft_result({method = "normal", width = 3, items = recipe})
craft = {recipe = recipe, consumption=count_index(recipe), output = output, decremented_input = decremented_input}
autocrafterCache[hash] = craft
end
return craft
end
local function autocraft(inventory, craft)
if not craft then return false end
local output_item = craft.output.item
-- check if we have enough room in dst
if not inventory:room_for_item("dst", output_item) then return false end
local consumption = craft.consumption
local inv_index = count_index(inventory:get_list("src"))
-- check if we have enough material available
for itemname, number in pairs(consumption) do
if (not inv_index[itemname]) or inv_index[itemname] < number then return false end
end
-- consume material
for itemname, number in pairs(consumption) do
for i = 1, number do -- We have to do that since remove_item does not work if count > stack_max
inventory:remove_item("src", ItemStack(itemname))
end
end
-- craft the result into the dst inventory and add any "replacements" as well
inventory:add_item("dst", output_item)
for i = 1, 9 do
inventory:add_item("dst", craft.decremented_input.items[i])
end
return true
end
local function formspec(state)
return "size[8,9.2]".. -- 9.2 is the max. for mobile devices
"list[context;recipe;0,0;3,3;]"..
"image[2.8,1;1,1;tubelib_gui_arrow.png]"..
"list[context;output;3.5,1;1,1;]"..
"image_button[3.5,2;1,1;".. tubelib.state_button(state) ..";button;]"..
"list[context;src;0,3.2;8,2;]"..
"list[context;dst;5,0;3,3;]"..
default.gui_bg..
default.gui_bg_img..
default.gui_slots..
"list[current_player;main;0,5.4;8,4;]" ..
"listring[current_player;main]"..
"listring[context;src]" ..
"listring[current_player;main]"..
"listring[context;dst]" ..
"listring[current_player;main]"
end
local function start_crafter(pos)
local meta = minetest.get_meta(pos)
local node = minetest.get_node(pos)
meta:set_int("running", SLEEP_CNT_START_VAL)
meta:set_string("formspec",formspec(tubelib.RUNNING))
node.name = "tubelib_addons1:autocrafter_active"
minetest.swap_node(pos, node)
local timer = minetest.get_node_timer(pos)
if not timer:is_started() then
timer:start(craft_time)
end
return false
end
local function stop_crafter(pos)
local node = minetest.get_node(pos)
local meta = minetest.get_meta(pos)
local number = meta:get_string("number") or ""
meta:set_int("running", 0)
meta:set_string("formspec",formspec(tubelib.STOPPED))
meta:set_string("infotext", "Tubelib Autocrafter "..number..": stopped")
node.name = "tubelib_addons1:autocrafter"
minetest.swap_node(pos, node)
minetest.get_node_timer(pos):stop()
return false
end
local function goto_sleep(pos)
local node = minetest.get_node(pos)
local meta = minetest.get_meta(pos)
local number = meta:get_string("number") or ""
meta:set_int("running", -1)
meta:set_string("formspec",formspec(tubelib.STANDBY))
meta:set_string("infotext", "Tubelib Autocrafter "..number..": standby")
node.name = "tubelib_addons1:autocrafter"
minetest.swap_node(pos, node)
minetest.get_node_timer(pos):start(craft_time*SLEEP_CNT_START_VAL)
return false
end
-- returns false to stop the timer, true to continue running
-- is started only from start_autocrafter(pos) after sanity checks and cached recipe
local function run_autocrafter(pos, elapsed)
local meta = minetest.get_meta(pos)
local running = meta:get_int("running") - 1
local inventory = meta:get_inventory()
local craft = get_craft(pos, inventory)
local output_item = craft.output.item
-- only use crafts that have an actual result
if output_item:is_empty() then
if running <= 0 then
return goto_sleep(pos)
end
meta:set_int("running", running)
return true
end
if not autocraft(inventory, craft) then
if running <= 0 then
return goto_sleep(pos)
end
meta:set_int("running", running)
return true
end
if running <= 0 then
return start_crafter(pos)
else
running = SLEEP_CNT_START_VAL
end
meta:set_int("running", running)
return true
end
-- note, that this function assumes allready being updated to virtual items
-- and doesn't handle recipes with stacksizes > 1
local function after_recipe_change(pos, inventory)
local meta = minetest.get_meta(pos)
-- if we emptied the grid, there's no point in keeping it running or cached
if inventory:is_empty("recipe") then
minetest.get_node_timer(pos):stop()
autocrafterCache[minetest.hash_node_position(pos)] = nil
local number = meta:get_string("number")
meta:set_string("infotext", "unconfigured Autocrafter: "..number)
inventory:set_stack("output", 1, "")
return
end
local recipe_changed = false
local recipe = inventory:get_list("recipe")
local hash = minetest.hash_node_position(pos)
local craft = autocrafterCache[hash]
if craft then
-- check if it changed
local cached_recipe = craft.recipe
for i = 1, 9 do
if recipe[i]:get_name() ~= cached_recipe[i]:get_name() then
autocrafterCache[hash] = nil -- invalidate recipe
craft = nil
break
end
end
end
craft = craft or get_craft(pos, inventory, hash)
local output_item = craft.output.item
local description, name = get_item_info(output_item)
local number = meta:get_string("number")
meta:set_string("infotext", string.format("'%s' Tubelib Autocrafter "..number.."(%s)", description, name))
inventory:set_stack("output", 1, output_item)
end
-- clean out unknown items and groups, which would be handled like unknown items in the crafting grid
-- if minetest supports query by group one day, this might replace them
-- with a canonical version instead
local function normalize(item_list)
for i = 1, #item_list do
local name = item_list[i]
if not minetest.registered_items[name] then
item_list[i] = ""
end
end
return item_list
end
local function on_output_change(pos, inventory, stack)
if not stack then
inventory:set_list("output", {})
inventory:set_list("recipe", {})
else
local input = minetest.get_craft_recipe(stack:get_name())
if not input.items or input.type ~= "normal" then return end
local items, width = normalize(input.items), input.width
local item_idx, width_idx = 1, 1
for i = 1, 9 do
if width_idx <= width then
inventory:set_stack("recipe", i, items[item_idx])
item_idx = item_idx + 1
else
inventory:set_stack("recipe", i, ItemStack(""))
end
width_idx = (width_idx < 3) and (width_idx + 1) or 1
end
-- we'll set the output slot in after_recipe_change to the actual result of the new recipe
end
after_recipe_change(pos, inventory)
end
local function allow_metadata_inventory_put(pos, listname, index, stack, player)
if minetest.is_protected(pos, player:get_player_name()) then
return 0
end
local inv = minetest.get_meta(pos):get_inventory()
if listname == "recipe" then
stack:set_count(1)
inv:set_stack(listname, index, stack)
after_recipe_change(pos, inv)
return 0
elseif listname == "output" then
on_output_change(pos, inv, stack)
return 0
end
return stack:get_count()
end
local function allow_metadata_inventory_take(pos, listname, index, stack, player)
if minetest.is_protected(pos, player:get_player_name()) then
return 0
end
-- upgrade_autocrafter(pos)
local inv = minetest.get_meta(pos):get_inventory()
if listname == "recipe" then
inv:set_stack(listname, index, ItemStack(""))
after_recipe_change(pos, inv)
return 0
elseif listname == "output" then
on_output_change(pos, inv, nil)
return 0
end
return stack:get_count()
end
local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
if minetest.is_protected(pos, player:get_player_name()) then
return 0
end
local inv = minetest.get_meta(pos):get_inventory()
local stack = inv:get_stack(from_list, from_index)
if to_list == "output" then
on_output_change(pos, inv, stack)
return 0
elseif from_list == "output" then
on_output_change(pos, inv, nil)
if to_list ~= "recipe" then
return 0
end -- else fall through to recipe list handling
end
if from_list == "recipe" or to_list == "recipe" then
if from_list == "recipe" then
inv:set_stack(from_list, from_index, ItemStack(""))
end
if to_list == "recipe" then
stack:set_count(1)
inv:set_stack(to_list, to_index, stack)
end
after_recipe_change(pos, inv)
return 0
end
return count
end
-- returns false if we shouldn't bother attempting to start the timer again after this
local function update_meta(meta, state)
-- toggling the button doesn't quite call for running a recipe change check
-- so instead we run a minimal version for infotext setting only
-- this might be more written code, but actually executes less
local number = meta:get_string("number")
local output = meta:get_inventory():get_stack("output", 1)
if output:is_empty() then -- doesn't matter if paused or not
meta:set_string("infotext", "unconfigured Autocrafter "..number)
meta:set_string("formspec",formspec(tubelib.STOPPED))
return false
end
local infotext
local description, name = get_item_info(output)
if state == tubelib.RUNNING then
infotext = string.format("'%s' Autocrafter %s (%s)", description, number, name)
else
infotext = string.format("stopped '%s' Autocrafter %s", description, number)
end
meta:set_string("infotext", infotext)
meta:set_string("formspec",formspec(state))
return state == tubelib.RUNNING
end
local function on_receive_fields(pos, formname, fields, sender)
if minetest.is_protected(pos, sender:get_player_name()) then
return
end
local meta = minetest.get_meta(pos)
local running = meta:get_int("running")
if fields.button ~= nil then
if running > 0 then
update_meta(meta, tubelib.STOPPED)
stop_crafter(pos)
meta:set_int("running", 0)
else
if update_meta(meta, tubelib.RUNNING) then
meta:set_int("running", 1)
start_crafter(pos)
else
stop_crafter(pos)
meta:set_int("running", 0)
end
end
end
end
minetest.register_node("tubelib_addons1:autocrafter", {
description = "Autocrafter",
drawtype = "normal",
tiles = {'tubelib_front.png', 'tubelib_addons1_autocrafter.png'},
on_construct = function(pos)
local meta = minetest.get_meta(pos)
local number = tubelib.add_node(pos, "tubelib_addons1:autocrafter")
local inv = meta:get_inventory()
inv:set_size("src", 2*8)
inv:set_size("recipe", 3*3)
inv:set_size("dst", 3*3)
inv:set_size("output", 1)
meta:set_string("number", number)
meta:set_int("running", 0)
update_meta(meta, tubelib.STOPPED)
end,
on_receive_fields = on_receive_fields,
can_dig = function(pos, player)
--upgrade_autocrafter(pos)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
return (inv:is_empty("src") and inv:is_empty("dst"))
end,
on_destruct = function(pos)
autocrafterCache[minetest.hash_node_position(pos)] = nil
tubelib.remove_node(pos)
end,
allow_metadata_inventory_put = allow_metadata_inventory_put,
allow_metadata_inventory_take = allow_metadata_inventory_take,
allow_metadata_inventory_move = allow_metadata_inventory_move,
on_timer = run_autocrafter,
paramtype = "light",
sunlight_propagates = true,
groups = {choppy=2, cracky=2, crumbly=2},
is_ground_content = false,
sounds = default.node_sound_wood_defaults(),
})
minetest.register_node("tubelib_addons1:autocrafter_active", {
description = "Autocrafter",
drawtype = "normal",
tiles = {
'tubelib_front.png',
{
image = 'tubelib_addons1_autocrafter_active.png',
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 0.5,
},
},
},
on_receive_fields = on_receive_fields,
allow_metadata_inventory_put = allow_metadata_inventory_put,
allow_metadata_inventory_take = allow_metadata_inventory_take,
allow_metadata_inventory_move = allow_metadata_inventory_move,
on_timer = run_autocrafter,
paramtype = "light",
sunlight_propagates = true,
groups = {crumbly=0, not_in_creative_inventory=1},
is_ground_content = false,
sounds = default.node_sound_wood_defaults(),
})
minetest.register_craft({
output = "tubelib_addons1:autocrafter",
recipe = {
{"group:wood", "default:steel_ingot", "group:wood"},
{"tubelib:tube1", "default:mese_crystal", "tubelib:tube1"},
{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
},
})
tubelib.register_node("tubelib_addons1:autocrafter", {"tubelib_addons1:autocrafter_active"}, {
on_pull_item = function(pos, side)
local meta = minetest.get_meta(pos)
return tubelib.get_item(meta, "dst")
end,
on_push_item = function(pos, side, item)
local meta = minetest.get_meta(pos)
return tubelib.put_item(meta, "src", item)
end,
on_unpull_item = function(pos, side, item)
local meta = minetest.get_meta(pos)
return tubelib.put_item(meta, "dst", item)
end,
})