Hey PilzAdam,
I've been playing around with code and I've developed an "automated" furnace that allows the cart to drop stuff into it.
-- Based on celeron55's furnace
minetest.register_craft({
output = 'carts:furnace',
recipe = {
{'default:cobble', 'default:cobble', 'default:cobble'},
{'default:cobble', 'default:cobble', 'default:cobble'},
{'default:cobble', 'default:cobble', 'default:cobble'},
}
})
default.furnace_inactive_formspec =
"invsize[8,9;]"..
"image[2,2;1,1;default_furnace_fire_bg.png]"..
"list[current_name;fuel;2,3;1,1;]"..
"list[current_name;in;2,1;1,1;]"..
"list[current_name;dst;5,1;2,2;]"..
"list[current_player;main;0,5;8,4;]"
minetest.register_node("carts:furnace", {
description = "Furnace",
tiles = {"default_furnace_top.png", "default_furnace_bottom.png", "default_furnace_side.png",
"default_furnace_side.png", "default_furnace_side.png", "default_furnace_front.png"},
paramtype2 = "facedir",
groups = {cracky=2},
legacy_facedir_simple = true,
sounds = default.node_sound_stone_defaults(),
on_construct = function(pos)
local meta = minetest.env:get_meta(pos)
meta:set_string("formspec", default.furnace_inactive_formspec)
meta:set_string("infotext", "Automated Furnace")
local inv = meta:get_inventory()
inv:set_size("fuel", 1)
inv:set_size("in", 4)
inv:set_size("dst", 9)
end,
can_dig = function(pos,player)
local meta = minetest.env:get_meta(pos);
local inv = meta:get_inventory()
if not inv:is_empty("fuel") then
return false
elseif not inv:is_empty("dst") then
return false
elseif not inv:is_empty("in") then
return false
end
return true
end,
})
minetest.register_node("carts:furnace_active", {
description = "Furnace",
tiles = {"default_furnace_top.png", "default_furnace_bottom.png", "default_furnace_side.png",
"default_furnace_side.png", "default_furnace_side.png", "default_furnace_front_active.png"},
paramtype2 = "facedir",
light_source = 8,
drop = "carts:furnace",
groups = {cracky=2},
legacy_facedir_simple = true,
sounds = default.node_sound_stone_defaults(),
on_construct = function(pos)
local meta = minetest.env:get_meta(pos)
meta:set_string("formspec", default.furnace_inactive_formspec)
meta:set_string("infotext", "Automated Furnace");
local inv = meta:get_inventory()
inv:set_size("fuel", 1)
inv:set_size("in", 4)
inv:set_size("dst", 9)
end,
can_dig = function(pos,player)
local meta = minetest.env:get_meta(pos);
local inv = meta:get_inventory()
if not inv:is_empty("fuel") then
return false
elseif not inv:is_empty("dst") then
return false
elseif not inv:is_empty("in") then
return false
end
return true
end,
})
function hacky_swap_node(pos,name)
local node = minetest.env:get_node(pos)
local meta = minetest.env:get_meta(pos)
local meta0 = meta:to_table()
if node.name == name then
return
end
node.name = name
local meta0 = meta:to_table()
minetest.env:set_node(pos,node)
meta = minetest.env:get_meta(pos)
meta:from_table(meta0)
end
minetest.register_abm({
nodenames = {"carts:furnace","carts:furnace_active"},
interval = 1.0,
chance = 1,
action = function(pos, node, active_object_count, active_object_count_wider)
local meta = minetest.env:get_meta(pos)
for i, name in ipairs({
"fuel_totaltime",
"fuel_time",
"in_totaltime",
"in_time"
}) do
if meta:get_string(name) == "" then
meta:set_float(name, 0.0)
end
end
local inv = meta:get_inventory()
local inlist = inv:get_list("in")
local cooked = nil
if inlist then
cooked = minetest.get_craft_result({method = "cooking", width = 1, items = inlist})
end
local was_active = false
if meta:get_float("fuel_time") < meta:get_float("fuel_totaltime") then
was_active = true
meta:set_float("fuel_time", meta:get_float("fuel_time") + 1)
meta:set_float("in_time", meta:get_float("in_time") + 1)
if cooked and cooked.item and meta:get_float("in_time") >= cooked.time then
-- check if there's room for output in "dst" list
if inv:room_for_item("dst",cooked.item) then
-- Put result in "dst" list
inv:add_item("dst", cooked.item)
-- take stuff from "in" list
instack = inv:get_stack("in", 1)
instack:take_item()
inv:set_stack("in", 1, instack)
else
print("Could not insert item'")
end
meta:set_string("in_time", 0)
end
end
if meta:get_float("fuel_time") < meta:get_float("fuel_totaltime") then
local percent = math.floor(meta:get_float("fuel_time") /
meta:get_float("fuel_totaltime") * 100)
meta:set_string("infotext","Furnace active: "..percent.."%")
hacky_swap_node(pos,"carts:furnace_active")
meta:set_string("formspec",
"invsize[8,9;]"..
"image[2,2;1,1;default_furnace_fire_bg.png^[lowpart:"..
(100-percent)..":default_furnace_fire_fg.png]"..
"list[current_name;fuel;2,3;1,1;]"..
"list[current_name;in;2,1;1,1;]"..
"list[current_name;dst;5,1;2,2;]"..
"list[current_player;main;0,5;8,4;]")
return
end
local fuel = nil
local cooked = nil
local fuellist = inv:get_list("fuel")
local inlist = inv:get_list("in")
if inlist then
cooked = minetest.get_craft_result({method = "cooking", width = 1, items = inlist})
end
if fuellist then
fuel = minetest.get_craft_result({method = "fuel", width = 1, items = fuellist})
end
if fuel.time <= 0 then
meta:set_string("infotext","Furnace out of fuel")
hacky_swap_node(pos,"carts:furnace")
meta:set_string("formspec", default.furnace_inactive_formspec)
return
end
if cooked.item:is_empty() then
if was_active then
meta:set_string("infotext","Furnace is empty")
hacky_swap_node(pos,"carts:furnace")
meta:set_string("formspec", default.furnace_inactive_formspec)
end
return
end
meta:set_string("fuel_totaltime", fuel.time)
meta:set_string("fuel_time", 0)
local stack = inv:get_stack("fuel", 1)
stack:take_item()
inv:set_stack("fuel", 1, stack)
end,
})
minetest.register_abm({
nodenames = {"default:furnace"},
interval = 0,
chance = 1,
action = function(pos)
minetest.env:add_entity(pos,"carts:furnace")
minetest.env:remove_node(pos)
end
})
